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                         DECLARE_MAC_BUF(mac);
 102                         printk(KERN_DEBUG "%s: set_encrypt - unknown addr "
 103                                "%s\n",
 104                                dev->name, print_mac(mac, sta_addr));
 105 #endif /* CONFIG_MAC80211_VERBOSE_DEBUG */
 106
 107                         return -ENOENT;
 108                 }
 109
 110                 key = sta->key;
 111         }
 112
 113         if (alg == ALG_NONE) {
 114                 ieee80211_key_free(key);
 115                 key = NULL;
 116         } else {
 117                 /*
 118                  * Automatically frees any old key if present.
 119                  */
 120                 key = ieee80211_key_alloc(sdata, sta, alg, idx, key_len, _key);
 121                 if (!key) {
 122                         ret = -ENOMEM;
 123                         goto err_out;
 124                 }
 125         }
 126
 127         if (set_tx_key || (!sta && !sdata->default_key && key))
 128                 ieee80211_set_default_key(sdata, idx);
 129
 130         ret = 0;
 131  err_out:
 132         if (sta)
 133                 sta_info_put(sta);
 134         return ret;
 135 }
 136
 137 static int ieee80211_ioctl_siwgenie(struct net_device *dev,
 138                                     struct iw_request_info *info,
 139                                     struct iw_point *data, char *extra)
 140 {
 141         struct ieee80211_sub_if_data *sdata;
 142         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 143
 144         if (local->user_space_mlme)
 145                 return -EOPNOTSUPP;
 146
 147         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 148         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 149             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 150                 int ret = ieee80211_sta_set_extra_ie(dev, extra, data->length);
 151                 if (ret)
 152                         return ret;
 153                 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 154                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 155                 return 0;
 156         }
 157
 158         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 159                 kfree(sdata->u.ap.generic_elem);
 160                 sdata->u.ap.generic_elem = kmalloc(data->length, GFP_KERNEL);
 161                 if (!sdata->u.ap.generic_elem)
 162                         return -ENOMEM;
 163                 memcpy(sdata->u.ap.generic_elem, extra, data->length);
 164                 sdata->u.ap.generic_elem_len = data->length;
 165                 return ieee80211_if_config(dev);
 166         }
 167         return -EOPNOTSUPP;
 168 }
 169
 170 static int ieee80211_ioctl_giwname(struct net_device *dev,
 171                                    struct iw_request_info *info,
 172                                    char *name, char *extra)
 173 {
 174         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 175
 176         switch (local->hw.conf.phymode) {
 177         case MODE_IEEE80211A:
 178                 strcpy(name, "IEEE 802.11a");
 179                 break;
 180         case MODE_IEEE80211B:
 181                 strcpy(name, "IEEE 802.11b");
 182                 break;
 183         case MODE_IEEE80211G:
 184                 strcpy(name, "IEEE 802.11g");
 185                 break;
 186         default:
 187                 strcpy(name, "IEEE 802.11");
 188                 break;
 189         }
 190
 191         return 0;
 192 }
 193
 194
 195 static int ieee80211_ioctl_giwrange(struct net_device *dev,
 196                                  struct iw_request_info *info,
 197                                  struct iw_point *data, char *extra)
 198 {
 199         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 200         struct iw_range *range = (struct iw_range *) extra;
 201         struct ieee80211_hw_mode *mode = NULL;
 202         int c = 0;
 203
 204         data->length = sizeof(struct iw_range);
 205         memset(range, 0, sizeof(struct iw_range));
 206
 207         range->we_version_compiled = WIRELESS_EXT;
 208         range->we_version_source = 21;
 209         range->retry_capa = IW_RETRY_LIMIT;
 210         range->retry_flags = IW_RETRY_LIMIT;
 211         range->min_retry = 0;
 212         range->max_retry = 255;
 213         range->min_rts = 0;
 214         range->max_rts = 2347;
 215         range->min_frag = 256;
 216         range->max_frag = 2346;
 217
 218         range->encoding_size[0] = 5;
 219         range->encoding_size[1] = 13;
 220         range->num_encoding_sizes = 2;
 221         range->max_encoding_tokens = NUM_DEFAULT_KEYS;
 222
 223         range->max_qual.qual = local->hw.max_signal;
 224         range->max_qual.level = local->hw.max_rssi;
 225         range->max_qual.noise = local->hw.max_noise;
 226         range->max_qual.updated = local->wstats_flags;
 227
 228         range->avg_qual.qual = local->hw.max_signal/2;
 229         range->avg_qual.level = 0;
 230         range->avg_qual.noise = 0;
 231         range->avg_qual.updated = local->wstats_flags;
 232
 233         range->enc_capa = IW_ENC_CAPA_WPA | IW_ENC_CAPA_WPA2 |
 234                           IW_ENC_CAPA_CIPHER_TKIP | IW_ENC_CAPA_CIPHER_CCMP;
 235
 236         list_for_each_entry(mode, &local->modes_list, list) {
 237                 int i = 0;
 238
 239                 if (!(local->enabled_modes & (1 << mode->mode)) ||
 240                     (local->hw_modes & local->enabled_modes &
 241                      (1 << MODE_IEEE80211G) && mode->mode == MODE_IEEE80211B))
 242                         continue;
 243
 244                 while (i < mode->num_channels && c < IW_MAX_FREQUENCIES) {
 245                         struct ieee80211_channel *chan = &mode->channels[i];
 246
 247                         if (chan->flag & IEEE80211_CHAN_W_SCAN) {
 248                                 range->freq[c].i = chan->chan;
 249                                 range->freq[c].m = chan->freq * 100000;
 250                                 range->freq[c].e = 1;
 251                                 c++;
 252                         }
 253                         i++;
 254                 }
 255         }
 256         range->num_channels = c;
 257         range->num_frequency = c;
 258
 259         IW_EVENT_CAPA_SET_KERNEL(range->event_capa);
 260         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWTHRSPY);
 261         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWAP);
 262         IW_EVENT_CAPA_SET(range->event_capa, SIOCGIWSCAN);
 263
 264         return 0;
 265 }
 266
 267
 268 static int ieee80211_ioctl_siwmode(struct net_device *dev,
 269                                    struct iw_request_info *info,
 270                                    __u32 *mode, char *extra)
 271 {
 272         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 273         int type;
 274
 275         if (sdata->type == IEEE80211_IF_TYPE_VLAN)
 276                 return -EOPNOTSUPP;
 277
 278         switch (*mode) {
 279         case IW_MODE_INFRA:
 280                 type = IEEE80211_IF_TYPE_STA;
 281                 break;
 282         case IW_MODE_ADHOC:
 283                 type = IEEE80211_IF_TYPE_IBSS;
 284                 break;
 285         case IW_MODE_MONITOR:
 286                 type = IEEE80211_IF_TYPE_MNTR;
 287                 break;
 288         default:
 289                 return -EINVAL;
 290         }
 291
 292         if (type == sdata->type)
 293                 return 0;
 294         if (netif_running(dev))
 295                 return -EBUSY;
 296
 297         ieee80211_if_reinit(dev);
 298         ieee80211_if_set_type(dev, type);
 299
 300         return 0;
 301 }
 302
 303
 304 static int ieee80211_ioctl_giwmode(struct net_device *dev,
 305                                    struct iw_request_info *info,
 306                                    __u32 *mode, char *extra)
 307 {
 308         struct ieee80211_sub_if_data *sdata;
 309
 310         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 311         switch (sdata->type) {
 312         case IEEE80211_IF_TYPE_AP:
 313                 *mode = IW_MODE_MASTER;
 314                 break;
 315         case IEEE80211_IF_TYPE_STA:
 316                 *mode = IW_MODE_INFRA;
 317                 break;
 318         case IEEE80211_IF_TYPE_IBSS:
 319                 *mode = IW_MODE_ADHOC;
 320                 break;
 321         case IEEE80211_IF_TYPE_MNTR:
 322                 *mode = IW_MODE_MONITOR;
 323                 break;
 324         case IEEE80211_IF_TYPE_WDS:
 325                 *mode = IW_MODE_REPEAT;
 326                 break;
 327         case IEEE80211_IF_TYPE_VLAN:
 328                 *mode = IW_MODE_SECOND;         /* FIXME */
 329                 break;
 330         default:
 331                 *mode = IW_MODE_AUTO;
 332                 break;
 333         }
 334         return 0;
 335 }
 336
 337 int ieee80211_set_channel(struct ieee80211_local *local, int channel, int freq)
 338 {
 339         struct ieee80211_hw_mode *mode;
 340         int c, set = 0;
 341         int ret = -EINVAL;
 342
 343         list_for_each_entry(mode, &local->modes_list, list) {
 344                 if (!(local->enabled_modes & (1 << mode->mode)))
 345                         continue;
 346                 for (c = 0; c < mode->num_channels; c++) {
 347                         struct ieee80211_channel *chan = &mode->channels[c];
 348                         if (chan->flag & IEEE80211_CHAN_W_SCAN &&
 349                             ((chan->chan == channel) || (chan->freq == freq))) {
 350                                 /* Use next_mode as the mode preference to
 351                                  * resolve non-unique channel numbers. */
 352                                 if (set && mode->mode != local->next_mode)
 353                                         continue;
 354
 355                                 local->oper_channel = chan;
 356                                 local->oper_hw_mode = mode;
 357                                 set++;
 358                         }
 359                 }
 360         }
 361
 362         if (set) {
 363                 if (local->sta_scanning)
 364                         ret = 0;
 365                 else
 366                         ret = ieee80211_hw_config(local);
 367
 368                 rate_control_clear(local);
 369         }
 370
 371         return ret;
 372 }
 373
 374 static int ieee80211_ioctl_siwfreq(struct net_device *dev,
 375                                    struct iw_request_info *info,
 376                                    struct iw_freq *freq, char *extra)
 377 {
 378         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 379         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 380
 381         if (sdata->type == IEEE80211_IF_TYPE_STA)
 382                 sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_CHANNEL_SEL;
 383
 384         /* freq->e == 0: freq->m = channel; otherwise freq = m * 10^e */
 385         if (freq->e == 0) {
 386                 if (freq->m < 0) {
 387                         if (sdata->type == IEEE80211_IF_TYPE_STA)
 388                                 sdata->u.sta.flags |=
 389                                         IEEE80211_STA_AUTO_CHANNEL_SEL;
 390                         return 0;
 391                 } else
 392                         return ieee80211_set_channel(local, freq->m, -1);
 393         } else {
 394                 int i, div = 1000000;
 395                 for (i = 0; i < freq->e; i++)
 396                         div /= 10;
 397                 if (div > 0)
 398                         return ieee80211_set_channel(local, -1, freq->m / div);
 399                 else
 400                         return -EINVAL;
 401         }
 402 }
 403
 404
 405 static int ieee80211_ioctl_giwfreq(struct net_device *dev,
 406                                    struct iw_request_info *info,
 407                                    struct iw_freq *freq, char *extra)
 408 {
 409         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 410
 411         /* TODO: in station mode (Managed/Ad-hoc) might need to poll low-level
 412          * driver for the current channel with firmware-based management */
 413
 414         freq->m = local->hw.conf.freq;
 415         freq->e = 6;
 416
 417         return 0;
 418 }
 419
 420
 421 static int ieee80211_ioctl_siwessid(struct net_device *dev,
 422                                     struct iw_request_info *info,
 423                                     struct iw_point *data, char *ssid)
 424 {
 425         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 426         struct ieee80211_sub_if_data *sdata;
 427         size_t len = data->length;
 428
 429         /* iwconfig uses nul termination in SSID.. */
 430         if (len > 0 && ssid[len - 1] == '\0')
 431                 len--;
 432
 433         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 434         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 435             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 436                 int ret;
 437                 if (local->user_space_mlme) {
 438                         if (len > IEEE80211_MAX_SSID_LEN)
 439                                 return -EINVAL;
 440                         memcpy(sdata->u.sta.ssid, ssid, len);
 441                         sdata->u.sta.ssid_len = len;
 442                         return 0;
 443                 }
 444                 if (data->flags)
 445                         sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_SSID_SEL;
 446                 else
 447                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_SSID_SEL;
 448                 ret = ieee80211_sta_set_ssid(dev, ssid, len);
 449                 if (ret)
 450                         return ret;
 451                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 452                 return 0;
 453         }
 454
 455         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 456                 memcpy(sdata->u.ap.ssid, ssid, len);
 457                 memset(sdata->u.ap.ssid + len, 0,
 458                        IEEE80211_MAX_SSID_LEN - len);
 459                 sdata->u.ap.ssid_len = len;
 460                 return ieee80211_if_config(dev);
 461         }
 462         return -EOPNOTSUPP;
 463 }
 464
 465
 466 static int ieee80211_ioctl_giwessid(struct net_device *dev,
 467                                     struct iw_request_info *info,
 468                                     struct iw_point *data, char *ssid)
 469 {
 470         size_t len;
 471
 472         struct ieee80211_sub_if_data *sdata;
 473         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 474         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 475             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 476                 int res = ieee80211_sta_get_ssid(dev, ssid, &len);
 477                 if (res == 0) {
 478                         data->length = len;
 479                         data->flags = 1;
 480                 } else
 481                         data->flags = 0;
 482                 return res;
 483         }
 484
 485         if (sdata->type == IEEE80211_IF_TYPE_AP) {
 486                 len = sdata->u.ap.ssid_len;
 487                 if (len > IW_ESSID_MAX_SIZE)
 488                         len = IW_ESSID_MAX_SIZE;
 489                 memcpy(ssid, sdata->u.ap.ssid, len);
 490                 data->length = len;
 491                 data->flags = 1;
 492                 return 0;
 493         }
 494         return -EOPNOTSUPP;
 495 }
 496
 497
 498 static int ieee80211_ioctl_siwap(struct net_device *dev,
 499                                  struct iw_request_info *info,
 500                                  struct sockaddr *ap_addr, char *extra)
 501 {
 502         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 503         struct ieee80211_sub_if_data *sdata;
 504
 505         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 506         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 507             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 508                 int ret;
 509                 if (local->user_space_mlme) {
 510                         memcpy(sdata->u.sta.bssid, (u8 *) &ap_addr->sa_data,
 511                                ETH_ALEN);
 512                         return 0;
 513                 }
 514                 if (is_zero_ether_addr((u8 *) &ap_addr->sa_data))
 515                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL |
 516                                 IEEE80211_STA_AUTO_CHANNEL_SEL;
 517                 else if (is_broadcast_ether_addr((u8 *) &ap_addr->sa_data))
 518                         sdata->u.sta.flags |= IEEE80211_STA_AUTO_BSSID_SEL;
 519                 else
 520                         sdata->u.sta.flags &= ~IEEE80211_STA_AUTO_BSSID_SEL;
 521                 ret = ieee80211_sta_set_bssid(dev, (u8 *) &ap_addr->sa_data);
 522                 if (ret)
 523                         return ret;
 524                 ieee80211_sta_req_auth(dev, &sdata->u.sta);
 525                 return 0;
 526         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 527                 if (memcmp(sdata->u.wds.remote_addr, (u8 *) &ap_addr->sa_data,
 528                            ETH_ALEN) == 0)
 529                         return 0;
 530                 return ieee80211_if_update_wds(dev, (u8 *) &ap_addr->sa_data);
 531         }
 532
 533         return -EOPNOTSUPP;
 534 }
 535
 536
 537 static int ieee80211_ioctl_giwap(struct net_device *dev,
 538                                  struct iw_request_info *info,
 539                                  struct sockaddr *ap_addr, char *extra)
 540 {
 541         struct ieee80211_sub_if_data *sdata;
 542
 543         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 544         if (sdata->type == IEEE80211_IF_TYPE_STA ||
 545             sdata->type == IEEE80211_IF_TYPE_IBSS) {
 546                 ap_addr->sa_family = ARPHRD_ETHER;
 547                 memcpy(&ap_addr->sa_data, sdata->u.sta.bssid, ETH_ALEN);
 548                 return 0;
 549         } else if (sdata->type == IEEE80211_IF_TYPE_WDS) {
 550                 ap_addr->sa_family = ARPHRD_ETHER;
 551                 memcpy(&ap_addr->sa_data, sdata->u.wds.remote_addr, ETH_ALEN);
 552                 return 0;
 553         }
 554
 555         return -EOPNOTSUPP;
 556 }
 557
 558
 559 static int ieee80211_ioctl_siwscan(struct net_device *dev,
 560                                    struct iw_request_info *info,
 561                                    struct iw_point *data, char *extra)
 562 {
 563         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 564         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 565         u8 *ssid = NULL;
 566         size_t ssid_len = 0;
 567
 568         if (!netif_running(dev))
 569                 return -ENETDOWN;
 570
 571         switch (sdata->type) {
 572         case IEEE80211_IF_TYPE_STA:
 573         case IEEE80211_IF_TYPE_IBSS:
 574                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 575                         ssid = sdata->u.sta.ssid;
 576                         ssid_len = sdata->u.sta.ssid_len;
 577                 }
 578                 break;
 579         case IEEE80211_IF_TYPE_AP:
 580                 if (local->scan_flags & IEEE80211_SCAN_MATCH_SSID) {
 581                         ssid = sdata->u.ap.ssid;
 582                         ssid_len = sdata->u.ap.ssid_len;
 583                 }
 584                 break;
 585         default:
 586                 return -EOPNOTSUPP;
 587         }
 588
 589         return ieee80211_sta_req_scan(dev, ssid, ssid_len);
 590 }
 591
 592
 593 static int ieee80211_ioctl_giwscan(struct net_device *dev,
 594                                    struct iw_request_info *info,
 595                                    struct iw_point *data, char *extra)
 596 {
 597         int res;
 598         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 599         if (local->sta_scanning)
 600                 return -EAGAIN;
 601         res = ieee80211_sta_scan_results(dev, extra, data->length);
 602         if (res >= 0) {
 603                 data->length = res;
 604                 return 0;
 605         }
 606         data->length = 0;
 607         return res;
 608 }
 609
 610
 611 static int ieee80211_ioctl_siwrate(struct net_device *dev,
 612                                   struct iw_request_info *info,
 613                                   struct iw_param *rate, char *extra)
 614 {
 615         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 616         struct ieee80211_hw_mode *mode;
 617         int i;
 618         u32 target_rate = rate->value / 100000;
 619         struct ieee80211_sub_if_data *sdata;
 620
 621         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 622         if (!sdata->bss)
 623                 return -ENODEV;
 624         mode = local->oper_hw_mode;
 625         /* target_rate = -1, rate->fixed = 0 means auto only, so use all rates
 626          * target_rate = X, rate->fixed = 1 means only rate X
 627          * target_rate = X, rate->fixed = 0 means all rates <= X */
 628         sdata->bss->max_ratectrl_rateidx = -1;
 629         sdata->bss->force_unicast_rateidx = -1;
 630         if (rate->value < 0)
 631                 return 0;
 632         for (i=0; i< mode->num_rates; i++) {
 633                 struct ieee80211_rate *rates = &mode->rates[i];
 634                 int this_rate = rates->rate;
 635
 636                 if (target_rate == this_rate) {
 637                         sdata->bss->max_ratectrl_rateidx = i;
 638                         if (rate->fixed)
 639                                 sdata->bss->force_unicast_rateidx = i;
 640                         break;
 641                 }
 642         }
 643         return 0;
 644 }
 645
 646 static int ieee80211_ioctl_giwrate(struct net_device *dev,
 647                                   struct iw_request_info *info,
 648                                   struct iw_param *rate, char *extra)
 649 {
 650         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 651         struct sta_info *sta;
 652         struct ieee80211_sub_if_data *sdata;
 653
 654         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 655         if (sdata->type == IEEE80211_IF_TYPE_STA)
 656                 sta = sta_info_get(local, sdata->u.sta.bssid);
 657         else
 658                 return -EOPNOTSUPP;
 659         if (!sta)
 660                 return -ENODEV;
 661         if (sta->txrate < local->oper_hw_mode->num_rates)
 662                 rate->value = local->oper_hw_mode->rates[sta->txrate].rate * 100000;
 663         else
 664                 rate->value = 0;
 665         sta_info_put(sta);
 666         return 0;
 667 }
 668
 669 static int ieee80211_ioctl_siwtxpower(struct net_device *dev,
 670                                       struct iw_request_info *info,
 671                                       union iwreq_data *data, char *extra)
 672 {
 673         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 674         bool need_reconfig = 0;
 675
 676         if ((data->txpower.flags & IW_TXPOW_TYPE) != IW_TXPOW_DBM)
 677                 return -EINVAL;
 678         if (data->txpower.flags & IW_TXPOW_RANGE)
 679                 return -EINVAL;
 680         if (!data->txpower.fixed)
 681                 return -EINVAL;
 682
 683         if (local->hw.conf.power_level != data->txpower.value) {
 684                 local->hw.conf.power_level = data->txpower.value;
 685                 need_reconfig = 1;
 686         }
 687         if (local->hw.conf.radio_enabled != !(data->txpower.disabled)) {
 688                 local->hw.conf.radio_enabled = !(data->txpower.disabled);
 689                 need_reconfig = 1;
 690         }
 691         if (need_reconfig) {
 692                 ieee80211_hw_config(local);
 693                 /* The return value of hw_config is not of big interest here,
 694                  * as it doesn't say that it failed because of _this_ config
 695                  * change or something else. Ignore it. */
 696         }
 697
 698         return 0;
 699 }
 700
 701 static int ieee80211_ioctl_giwtxpower(struct net_device *dev,
 702                                    struct iw_request_info *info,
 703                                    union iwreq_data *data, char *extra)
 704 {
 705         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 706
 707         data->txpower.fixed = 1;
 708         data->txpower.disabled = !(local->hw.conf.radio_enabled);
 709         data->txpower.value = local->hw.conf.power_level;
 710         data->txpower.flags = IW_TXPOW_DBM;
 711
 712         return 0;
 713 }
 714
 715 static int ieee80211_ioctl_siwrts(struct net_device *dev,
 716                                   struct iw_request_info *info,
 717                                   struct iw_param *rts, char *extra)
 718 {
 719         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 720
 721         if (rts->disabled)
 722                 local->rts_threshold = IEEE80211_MAX_RTS_THRESHOLD;
 723         else if (rts->value < 0 || rts->value > IEEE80211_MAX_RTS_THRESHOLD)
 724                 return -EINVAL;
 725         else
 726                 local->rts_threshold = rts->value;
 727
 728         /* If the wlan card performs RTS/CTS in hardware/firmware,
 729          * configure it here */
 730
 731         if (local->ops->set_rts_threshold)
 732                 local->ops->set_rts_threshold(local_to_hw(local),
 733                                              local->rts_threshold);
 734
 735         return 0;
 736 }
 737
 738 static int ieee80211_ioctl_giwrts(struct net_device *dev,
 739                                   struct iw_request_info *info,
 740                                   struct iw_param *rts, char *extra)
 741 {
 742         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 743
 744         rts->value = local->rts_threshold;
 745         rts->disabled = (rts->value >= IEEE80211_MAX_RTS_THRESHOLD);
 746         rts->fixed = 1;
 747
 748         return 0;
 749 }
 750
 751
 752 static int ieee80211_ioctl_siwfrag(struct net_device *dev,
 753                                    struct iw_request_info *info,
 754                                    struct iw_param *frag, char *extra)
 755 {
 756         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 757
 758         if (frag->disabled)
 759                 local->fragmentation_threshold = IEEE80211_MAX_FRAG_THRESHOLD;
 760         else if (frag->value < 256 ||
 761                  frag->value > IEEE80211_MAX_FRAG_THRESHOLD)
 762                 return -EINVAL;
 763         else {
 764                 /* Fragment length must be even, so strip LSB. */
 765                 local->fragmentation_threshold = frag->value & ~0x1;
 766         }
 767
 768         /* If the wlan card performs fragmentation in hardware/firmware,
 769          * configure it here */
 770
 771         if (local->ops->set_frag_threshold)
 772                 local->ops->set_frag_threshold(
 773                         local_to_hw(local),
 774                         local->fragmentation_threshold);
 775
 776         return 0;
 777 }
 778
 779 static int ieee80211_ioctl_giwfrag(struct net_device *dev,
 780                                    struct iw_request_info *info,
 781                                    struct iw_param *frag, char *extra)
 782 {
 783         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 784
 785         frag->value = local->fragmentation_threshold;
 786         frag->disabled = (frag->value >= IEEE80211_MAX_RTS_THRESHOLD);
 787         frag->fixed = 1;
 788
 789         return 0;
 790 }
 791
 792
 793 static int ieee80211_ioctl_siwretry(struct net_device *dev,
 794                                     struct iw_request_info *info,
 795                                     struct iw_param *retry, char *extra)
 796 {
 797         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 798
 799         if (retry->disabled ||
 800             (retry->flags & IW_RETRY_TYPE) != IW_RETRY_LIMIT)
 801                 return -EINVAL;
 802
 803         if (retry->flags & IW_RETRY_MAX)
 804                 local->long_retry_limit = retry->value;
 805         else if (retry->flags & IW_RETRY_MIN)
 806                 local->short_retry_limit = retry->value;
 807         else {
 808                 local->long_retry_limit = retry->value;
 809                 local->short_retry_limit = retry->value;
 810         }
 811
 812         if (local->ops->set_retry_limit) {
 813                 return local->ops->set_retry_limit(
 814                         local_to_hw(local),
 815                         local->short_retry_limit,
 816                         local->long_retry_limit);
 817         }
 818
 819         return 0;
 820 }
 821
 822
 823 static int ieee80211_ioctl_giwretry(struct net_device *dev,
 824                                     struct iw_request_info *info,
 825                                     struct iw_param *retry, char *extra)
 826 {
 827         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 828
 829         retry->disabled = 0;
 830         if (retry->flags == 0 || retry->flags & IW_RETRY_MIN) {
 831                 /* first return min value, iwconfig will ask max value
 832                  * later if needed */
 833                 retry->flags |= IW_RETRY_LIMIT;
 834                 retry->value = local->short_retry_limit;
 835                 if (local->long_retry_limit != local->short_retry_limit)
 836                         retry->flags |= IW_RETRY_MIN;
 837                 return 0;
 838         }
 839         if (retry->flags & IW_RETRY_MAX) {
 840                 retry->flags = IW_RETRY_LIMIT | IW_RETRY_MAX;
 841                 retry->value = local->long_retry_limit;
 842         }
 843
 844         return 0;
 845 }
 846
 847 static int ieee80211_ioctl_prism2_param(struct net_device *dev,
 848                                         struct iw_request_info *info,
 849                                         void *wrqu, char *extra)
 850 {
 851         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 852         struct ieee80211_sub_if_data *sdata;
 853         int *i = (int *) extra;
 854         int param = *i;
 855         int value = *(i + 1);
 856         int ret = 0;
 857         int mode;
 858
 859         if (!capable(CAP_NET_ADMIN))
 860                 return -EPERM;
 861
 862         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 863
 864         switch (param) {
 865         case PRISM2_PARAM_IEEE_802_1X:
 866                 if (local->ops->set_ieee8021x)
 867                         ret = local->ops->set_ieee8021x(local_to_hw(local),
 868                                                         value);
 869                 if (ret)
 870                         printk(KERN_DEBUG "%s: failed to set IEEE 802.1X (%d) "
 871                                "for low-level driver\n", dev->name, value);
 872                 else
 873                         sdata->ieee802_1x = value;
 874                 break;
 875
 876         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
 877                 if (sdata->type == IEEE80211_IF_TYPE_AP) {
 878                         if (value)
 879                                 sdata->flags |= IEEE80211_SDATA_USE_PROTECTION;
 880                         else
 881                                 sdata->flags &= ~IEEE80211_SDATA_USE_PROTECTION;
 882                         ieee80211_erp_info_change_notify(dev,
 883                                         IEEE80211_ERP_CHANGE_PROTECTION);
 884                 } else {
 885                         ret = -ENOENT;
 886                 }
 887                 break;
 888
 889         case PRISM2_PARAM_PREAMBLE:
 890                 if (sdata->type == IEEE80211_IF_TYPE_AP) {
 891                         if (value)
 892                                 sdata->flags |= IEEE80211_SDATA_SHORT_PREAMBLE;
 893                         else
 894                                 sdata->flags &= ~IEEE80211_SDATA_SHORT_PREAMBLE;
 895                         ieee80211_erp_info_change_notify(dev,
 896                                         IEEE80211_ERP_CHANGE_PREAMBLE);
 897                 } else {
 898                         ret = -ENOENT;
 899                 }
 900                 break;
 901
 902         case PRISM2_PARAM_SHORT_SLOT_TIME:
 903                 if (value)
 904                         local->hw.conf.flags |= IEEE80211_CONF_SHORT_SLOT_TIME;
 905                 else
 906                         local->hw.conf.flags &= ~IEEE80211_CONF_SHORT_SLOT_TIME;
 907                 if (ieee80211_hw_config(local))
 908                         ret = -EINVAL;
 909                 break;
 910
 911         case PRISM2_PARAM_NEXT_MODE:
 912                 local->next_mode = hostapd_mode_to_mode(value);
 913                 break;
 914
 915         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
 916                 local->wifi_wme_noack_test = value;
 917                 break;
 918
 919         case PRISM2_PARAM_SCAN_FLAGS:
 920                 local->scan_flags = value;
 921                 break;
 922
 923         case PRISM2_PARAM_MIXED_CELL:
 924                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
 925                     sdata->type != IEEE80211_IF_TYPE_IBSS)
 926                         ret = -EINVAL;
 927                 else {
 928                         if (value)
 929                                 sdata->u.sta.flags |= IEEE80211_STA_MIXED_CELL;
 930                         else
 931                                 sdata->u.sta.flags &= ~IEEE80211_STA_MIXED_CELL;
 932                 }
 933                 break;
 934
 935         case PRISM2_PARAM_HW_MODES:
 936                 mode = 1;
 937                 local->enabled_modes = 0;
 938                 while (value) {
 939                         if (value & 1)
 940                                 local->enabled_modes |=
 941                                         hostapd_mode_to_mode(mode);
 942                         mode <<= 1;
 943                         value >>= 1;
 944                 }
 945                 break;
 946
 947         case PRISM2_PARAM_CREATE_IBSS:
 948                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
 949                         ret = -EINVAL;
 950                 else {
 951                         if (value)
 952                                 sdata->u.sta.flags |= IEEE80211_STA_CREATE_IBSS;
 953                         else
 954                                 sdata->u.sta.flags &= ~IEEE80211_STA_CREATE_IBSS;
 955                 }
 956                 break;
 957         case PRISM2_PARAM_WMM_ENABLED:
 958                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
 959                     sdata->type != IEEE80211_IF_TYPE_IBSS)
 960                         ret = -EINVAL;
 961                 else {
 962                         if (value)
 963                                 sdata->u.sta.flags |= IEEE80211_STA_WMM_ENABLED;
 964                         else
 965                                 sdata->u.sta.flags &= ~IEEE80211_STA_WMM_ENABLED;
 966                 }
 967                 break;
 968         default:
 969                 ret = -EOPNOTSUPP;
 970                 break;
 971         }
 972
 973         return ret;
 974 }
 975
 976
 977 static int ieee80211_ioctl_get_prism2_param(struct net_device *dev,
 978                                             struct iw_request_info *info,
 979                                             void *wrqu, char *extra)
 980 {
 981         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
 982         struct ieee80211_sub_if_data *sdata;
 983         int *param = (int *) extra;
 984         int ret = 0;
 985         int mode;
 986
 987         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
 988
 989         switch (*param) {
 990         case PRISM2_PARAM_IEEE_802_1X:
 991                 *param = sdata->ieee802_1x;
 992                 break;
 993
 994         case PRISM2_PARAM_CTS_PROTECT_ERP_FRAMES:
 995                 *param = !!(sdata->flags & IEEE80211_SDATA_USE_PROTECTION);
 996                 break;
 997
 998         case PRISM2_PARAM_PREAMBLE:
 999                 *param = !!(sdata->flags & IEEE80211_SDATA_SHORT_PREAMBLE);
1000                 break;
1001
1002         case PRISM2_PARAM_SHORT_SLOT_TIME:
1003                 *param = !!(local->hw.conf.flags & IEEE80211_CONF_SHORT_SLOT_TIME);
1004                 break;
1005
1006         case PRISM2_PARAM_NEXT_MODE:
1007                 *param = local->next_mode;
1008                 break;
1009
1010         case PRISM2_PARAM_WIFI_WME_NOACK_TEST:
1011                 *param = local->wifi_wme_noack_test;
1012                 break;
1013
1014         case PRISM2_PARAM_SCAN_FLAGS:
1015                 *param = local->scan_flags;
1016                 break;
1017
1018         case PRISM2_PARAM_HW_MODES:
1019                 mode = 0;
1020                 *param = 0;
1021                 while (mode < NUM_IEEE80211_MODES) {
1022                         if (local->enabled_modes & (1<<mode))
1023                                 *param |= mode_to_hostapd_mode(1<<mode);
1024                         mode++;
1025                 }
1026                 break;
1027
1028         case PRISM2_PARAM_CREATE_IBSS:
1029                 if (sdata->type != IEEE80211_IF_TYPE_IBSS)
1030                         ret = -EINVAL;
1031                 else
1032                         *param = !!(sdata->u.sta.flags &
1033                                         IEEE80211_STA_CREATE_IBSS);
1034                 break;
1035
1036         case PRISM2_PARAM_MIXED_CELL:
1037                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1038                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1039                         ret = -EINVAL;
1040                 else
1041                         *param = !!(sdata->u.sta.flags &
1042                                         IEEE80211_STA_MIXED_CELL);
1043                 break;
1044
1045         case PRISM2_PARAM_WMM_ENABLED:
1046                 if (sdata->type != IEEE80211_IF_TYPE_STA &&
1047                     sdata->type != IEEE80211_IF_TYPE_IBSS)
1048                         ret = -EINVAL;
1049                 else
1050                         *param = !!(sdata->u.sta.flags &
1051                                         IEEE80211_STA_WMM_ENABLED);
1052                 break;
1053         default:
1054                 ret = -EOPNOTSUPP;
1055                 break;
1056         }
1057
1058         return ret;
1059 }
1060
1061 static int ieee80211_ioctl_siwmlme(struct net_device *dev,
1062                                    struct iw_request_info *info,
1063                                    struct iw_point *data, char *extra)
1064 {
1065         struct ieee80211_sub_if_data *sdata;
1066         struct iw_mlme *mlme = (struct iw_mlme *) extra;
1067
1068         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1069         if (sdata->type != IEEE80211_IF_TYPE_STA &&
1070             sdata->type != IEEE80211_IF_TYPE_IBSS)
1071                 return -EINVAL;
1072
1073         switch (mlme->cmd) {
1074         case IW_MLME_DEAUTH:
1075                 /* TODO: mlme->addr.sa_data */
1076                 return ieee80211_sta_deauthenticate(dev, mlme->reason_code);
1077         case IW_MLME_DISASSOC:
1078                 /* TODO: mlme->addr.sa_data */
1079                 return ieee80211_sta_disassociate(dev, mlme->reason_code);
1080         default:
1081                 return -EOPNOTSUPP;
1082         }
1083 }
1084
1085
1086 static int ieee80211_ioctl_siwencode(struct net_device *dev,
1087                                      struct iw_request_info *info,
1088                                      struct iw_point *erq, char *keybuf)
1089 {
1090         struct ieee80211_sub_if_data *sdata;
1091         int idx, i, alg = ALG_WEP;
1092         u8 bcaddr[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
1093
1094         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1095
1096         idx = erq->flags & IW_ENCODE_INDEX;
1097         if (idx == 0) {
1098                 if (sdata->default_key)
1099                         for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1100                                 if (sdata->default_key == sdata->keys[i]) {
1101                                         idx = i;
1102                                         break;
1103                                 }
1104                         }
1105         } else if (idx < 1 || idx > 4)
1106                 return -EINVAL;
1107         else
1108                 idx--;
1109
1110         if (erq->flags & IW_ENCODE_DISABLED)
1111                 alg = ALG_NONE;
1112         else if (erq->length == 0) {
1113                 /* No key data - just set the default TX key index */
1114                 ieee80211_set_default_key(sdata, idx);
1115                 return 0;
1116         }
1117
1118         return ieee80211_set_encryption(
1119                 dev, bcaddr,
1120                 idx, alg,
1121                 !sdata->default_key,
1122                 keybuf, erq->length);
1123 }
1124
1125
1126 static int ieee80211_ioctl_giwencode(struct net_device *dev,
1127                                      struct iw_request_info *info,
1128                                      struct iw_point *erq, char *key)
1129 {
1130         struct ieee80211_sub_if_data *sdata;
1131         int idx, i;
1132
1133         sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1134
1135         idx = erq->flags & IW_ENCODE_INDEX;
1136         if (idx < 1 || idx > 4) {
1137                 idx = -1;
1138                 if (!sdata->default_key)
1139                         idx = 0;
1140                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1141                         if (sdata->default_key == sdata->keys[i]) {
1142                                 idx = i;
1143                                 break;
1144                         }
1145                 }
1146                 if (idx < 0)
1147                         return -EINVAL;
1148         } else
1149                 idx--;
1150
1151         erq->flags = idx + 1;
1152
1153         if (!sdata->keys[idx]) {
1154                 erq->length = 0;
1155                 erq->flags |= IW_ENCODE_DISABLED;
1156                 return 0;
1157         }
1158
1159         memcpy(key, sdata->keys[idx]->conf.key,
1160                min_t(int, erq->length, sdata->keys[idx]->conf.keylen));
1161         erq->length = sdata->keys[idx]->conf.keylen;
1162         erq->flags |= IW_ENCODE_ENABLED;
1163
1164         return 0;
1165 }
1166
1167 static int ieee80211_ioctl_siwauth(struct net_device *dev,
1168                                    struct iw_request_info *info,
1169                                    struct iw_param *data, char *extra)
1170 {
1171         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1172         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1173         int ret = 0;
1174
1175         switch (data->flags & IW_AUTH_INDEX) {
1176         case IW_AUTH_WPA_VERSION:
1177         case IW_AUTH_CIPHER_PAIRWISE:
1178         case IW_AUTH_CIPHER_GROUP:
1179         case IW_AUTH_WPA_ENABLED:
1180         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
1181                 break;
1182         case IW_AUTH_KEY_MGMT:
1183                 if (sdata->type != IEEE80211_IF_TYPE_STA)
1184                         ret = -EINVAL;
1185                 else {
1186                         /*
1187                          * Key management was set by wpa_supplicant,
1188                          * we only need this to associate to a network
1189                          * that has privacy enabled regardless of not
1190                          * having a key.
1191                          */
1192                         sdata->u.sta.key_management_enabled = !!data->value;
1193                 }
1194                 break;
1195         case IW_AUTH_80211_AUTH_ALG:
1196                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1197                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1198                         sdata->u.sta.auth_algs = data->value;
1199                 else
1200                         ret = -EOPNOTSUPP;
1201                 break;
1202         case IW_AUTH_PRIVACY_INVOKED:
1203                 if (local->ops->set_privacy_invoked)
1204                         ret = local->ops->set_privacy_invoked(
1205                                         local_to_hw(local), data->value);
1206                 break;
1207         default:
1208                 ret = -EOPNOTSUPP;
1209                 break;
1210         }
1211         return ret;
1212 }
1213
1214 /* Get wireless statistics.  Called by /proc/net/wireless and by SIOCGIWSTATS */
1215 static struct iw_statistics *ieee80211_get_wireless_stats(struct net_device *dev)
1216 {
1217         struct ieee80211_local *local = wdev_priv(dev->ieee80211_ptr);
1218         struct iw_statistics *wstats = &local->wstats;
1219         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1220         struct sta_info *sta = NULL;
1221
1222         if (sdata->type == IEEE80211_IF_TYPE_STA ||
1223             sdata->type == IEEE80211_IF_TYPE_IBSS)
1224                 sta = sta_info_get(local, sdata->u.sta.bssid);
1225         if (!sta) {
1226                 wstats->discard.fragment = 0;
1227                 wstats->discard.misc = 0;
1228                 wstats->qual.qual = 0;
1229                 wstats->qual.level = 0;
1230                 wstats->qual.noise = 0;
1231                 wstats->qual.updated = IW_QUAL_ALL_INVALID;
1232         } else {
1233                 wstats->qual.level = sta->last_rssi;
1234                 wstats->qual.qual = sta->last_signal;
1235                 wstats->qual.noise = sta->last_noise;
1236                 wstats->qual.updated = local->wstats_flags;
1237                 sta_info_put(sta);
1238         }
1239         return wstats;
1240 }
1241
1242 static int ieee80211_ioctl_giwauth(struct net_device *dev,
1243                                    struct iw_request_info *info,
1244                                    struct iw_param *data, char *extra)
1245 {
1246         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1247         int ret = 0;
1248
1249         switch (data->flags & IW_AUTH_INDEX) {
1250         case IW_AUTH_80211_AUTH_ALG:
1251                 if (sdata->type == IEEE80211_IF_TYPE_STA ||
1252                     sdata->type == IEEE80211_IF_TYPE_IBSS)
1253                         data->value = sdata->u.sta.auth_algs;
1254                 else
1255                         ret = -EOPNOTSUPP;
1256                 break;
1257         default:
1258                 ret = -EOPNOTSUPP;
1259                 break;
1260         }
1261         return ret;
1262 }
1263
1264
1265 static int ieee80211_ioctl_siwencodeext(struct net_device *dev,
1266                                         struct iw_request_info *info,
1267                                         struct iw_point *erq, char *extra)
1268 {
1269         struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev);
1270         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
1271         int alg, idx, i;
1272
1273         switch (ext->alg) {
1274         case IW_ENCODE_ALG_NONE:
1275                 alg = ALG_NONE;
1276                 break;
1277         case IW_ENCODE_ALG_WEP:
1278                 alg = ALG_WEP;
1279                 break;
1280         case IW_ENCODE_ALG_TKIP:
1281                 alg = ALG_TKIP;
1282                 break;
1283         case IW_ENCODE_ALG_CCMP:
1284                 alg = ALG_CCMP;
1285                 break;
1286         default:
1287                 return -EOPNOTSUPP;
1288         }
1289
1290         if (erq->flags & IW_ENCODE_DISABLED)
1291                 alg = ALG_NONE;
1292
1293         idx = erq->flags & IW_ENCODE_INDEX;
1294         if (idx < 1 || idx > 4) {
1295                 idx = -1;
1296                 if (!sdata->default_key)
1297                         idx = 0;
1298                 else for (i = 0; i < NUM_DEFAULT_KEYS; i++) {
1299                         if (sdata->default_key == sdata->keys[i]) {
1300                                 idx = i;
1301                                 break;
1302                         }
1303                 }
1304                 if (idx < 0)
1305                         return -EINVAL;
1306         } else
1307                 idx--;
1308
1309         return ieee80211_set_encryption(dev, ext->addr.sa_data, idx, alg,
1310                                         ext->ext_flags &
1311                                         IW_ENCODE_EXT_SET_TX_KEY,
1312                                         ext->key, ext->key_len);
1313 }
1314
1315
1316 static const struct iw_priv_args ieee80211_ioctl_priv[] = {
1317         { PRISM2_IOCTL_PRISM2_PARAM,
1318           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 2, 0, "param" },
1319         { PRISM2_IOCTL_GET_PRISM2_PARAM,
1320           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1,
1321           IW_PRIV_TYPE_INT | IW_PRIV_SIZE_FIXED | 1, "get_param" },
1322 };
1323
1324 /* Structures to export the Wireless Handlers */
1325
1326 static const iw_handler ieee80211_handler[] =
1327 {
1328         (iw_handler) NULL,                              /* SIOCSIWCOMMIT */
1329         (iw_handler) ieee80211_ioctl_giwname,           /* SIOCGIWNAME */
1330         (iw_handler) NULL,                              /* SIOCSIWNWID */
1331         (iw_handler) NULL,                              /* SIOCGIWNWID */
1332         (iw_handler) ieee80211_ioctl_siwfreq,           /* SIOCSIWFREQ */
1333         (iw_handler) ieee80211_ioctl_giwfreq,           /* SIOCGIWFREQ */
1334         (iw_handler) ieee80211_ioctl_siwmode,           /* SIOCSIWMODE */
1335         (iw_handler) ieee80211_ioctl_giwmode,           /* SIOCGIWMODE */
1336         (iw_handler) NULL,                              /* SIOCSIWSENS */
1337         (iw_handler) NULL,                              /* SIOCGIWSENS */
1338         (iw_handler) NULL /* not used */,               /* SIOCSIWRANGE */
1339         (iw_handler) ieee80211_ioctl_giwrange,          /* SIOCGIWRANGE */
1340         (iw_handler) NULL /* not used */,               /* SIOCSIWPRIV */
1341         (iw_handler) NULL /* kernel code */,            /* SIOCGIWPRIV */
1342         (iw_handler) NULL /* not used */,               /* SIOCSIWSTATS */
1343         (iw_handler) NULL /* kernel code */,            /* SIOCGIWSTATS */
1344         (iw_handler) NULL,                              /* SIOCSIWSPY */
1345         (iw_handler) NULL,                              /* SIOCGIWSPY */
1346         (iw_handler) NULL,                              /* SIOCSIWTHRSPY */
1347         (iw_handler) NULL,                              /* SIOCGIWTHRSPY */
1348         (iw_handler) ieee80211_ioctl_siwap,             /* SIOCSIWAP */
1349         (iw_handler) ieee80211_ioctl_giwap,             /* SIOCGIWAP */
1350         (iw_handler) ieee80211_ioctl_siwmlme,           /* SIOCSIWMLME */
1351         (iw_handler) NULL,                              /* SIOCGIWAPLIST */
1352         (iw_handler) ieee80211_ioctl_siwscan,           /* SIOCSIWSCAN */
1353         (iw_handler) ieee80211_ioctl_giwscan,           /* SIOCGIWSCAN */
1354         (iw_handler) ieee80211_ioctl_siwessid,          /* SIOCSIWESSID */
1355         (iw_handler) ieee80211_ioctl_giwessid,          /* SIOCGIWESSID */
1356         (iw_handler) NULL,                              /* SIOCSIWNICKN */
1357         (iw_handler) NULL,                              /* SIOCGIWNICKN */
1358         (iw_handler) NULL,                              /* -- hole -- */
1359         (iw_handler) NULL,                              /* -- hole -- */
1360         (iw_handler) ieee80211_ioctl_siwrate,           /* SIOCSIWRATE */
1361         (iw_handler) ieee80211_ioctl_giwrate,           /* SIOCGIWRATE */
1362         (iw_handler) ieee80211_ioctl_siwrts,            /* SIOCSIWRTS */
1363         (iw_handler) ieee80211_ioctl_giwrts,            /* SIOCGIWRTS */
1364         (iw_handler) ieee80211_ioctl_siwfrag,           /* SIOCSIWFRAG */
1365         (iw_handler) ieee80211_ioctl_giwfrag,           /* SIOCGIWFRAG */
1366         (iw_handler) ieee80211_ioctl_siwtxpower,        /* SIOCSIWTXPOW */
1367         (iw_handler) ieee80211_ioctl_giwtxpower,        /* SIOCGIWTXPOW */
1368         (iw_handler) ieee80211_ioctl_siwretry,          /* SIOCSIWRETRY */
1369         (iw_handler) ieee80211_ioctl_giwretry,          /* SIOCGIWRETRY */
1370         (iw_handler) ieee80211_ioctl_siwencode,         /* SIOCSIWENCODE */
1371         (iw_handler) ieee80211_ioctl_giwencode,         /* SIOCGIWENCODE */
1372         (iw_handler) NULL,                              /* SIOCSIWPOWER */
1373         (iw_handler) NULL,                              /* SIOCGIWPOWER */
1374         (iw_handler) NULL,                              /* -- hole -- */
1375         (iw_handler) NULL,                              /* -- hole -- */
1376         (iw_handler) ieee80211_ioctl_siwgenie,          /* SIOCSIWGENIE */
1377         (iw_handler) NULL,                              /* SIOCGIWGENIE */
1378         (iw_handler) ieee80211_ioctl_siwauth,           /* SIOCSIWAUTH */
1379         (iw_handler) ieee80211_ioctl_giwauth,           /* SIOCGIWAUTH */
1380         (iw_handler) ieee80211_ioctl_siwencodeext,      /* SIOCSIWENCODEEXT */
1381         (iw_handler) NULL,                              /* SIOCGIWENCODEEXT */
1382         (iw_handler) NULL,                              /* SIOCSIWPMKSA */
1383         (iw_handler) NULL,                              /* -- hole -- */
1384 };
1385
1386 static const iw_handler ieee80211_private_handler[] =
1387 {                                                       /* SIOCIWFIRSTPRIV + */
1388         (iw_handler) ieee80211_ioctl_prism2_param,      /* 0 */
1389         (iw_handler) ieee80211_ioctl_get_prism2_param,  /* 1 */
1390 };
1391
1392 const struct iw_handler_def ieee80211_iw_handler_def =
1393 {
1394         .num_standard   = ARRAY_SIZE(ieee80211_handler),
1395         .num_private    = ARRAY_SIZE(ieee80211_private_handler),
1396         .num_private_args = ARRAY_SIZE(ieee80211_ioctl_priv),
1397         .standard       = (iw_handler *) ieee80211_handler,
1398         .private        = (iw_handler *) ieee80211_private_handler,
1399         .private_args   = (struct iw_priv_args *) ieee80211_ioctl_priv,
1400         .get_wireless_stats = ieee80211_get_wireless_stats,
1401 };