drivers/net/wireless/iwmc3200wifi/wext.c

   1 /*
   2  * Intel Wireless Multicomm 3200 WiFi driver
   3  *
   4  * Copyright (C) 2009 Intel Corporation <ilw@linux.intel.com>
   5  * Samuel Ortiz <samuel.ortiz@intel.com>
   6  * Zhu Yi <yi.zhu@intel.com>
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License version
  10  * 2 as published by the Free Software Foundation.
  11  *
  12  * This program is distributed in the hope that it will be useful,
  13  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  15  * GNU General Public License for more details.
  16  *
  17  * You should have received a copy of the GNU General Public License
  18  * along with this program; if not, write to the Free Software
  19  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  20  * 02110-1301, USA.
  21  *
  22  */
  23
  24 #include <linux/kernel.h>
  25 #include <linux/netdevice.h>
  26 #include <linux/wireless.h>
  27 #include <linux/if_arp.h>
  28 #include <linux/etherdevice.h>
  29 #include <net/cfg80211.h>
  30 #include <net/iw_handler.h>
  31
  32 #include "iwm.h"
  33 #include "umac.h"
  34 #include "commands.h"
  35 #include "debug.h"
  36
  37 static struct iw_statistics *iwm_get_wireless_stats(struct net_device *dev)
  38 {
  39         struct iwm_priv *iwm = ndev_to_iwm(dev);
  40         struct iw_statistics *wstats = &iwm->wstats;
  41
  42         if (!test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) {
  43                 memset(wstats, 0, sizeof(struct iw_statistics));
  44                 wstats->qual.updated = IW_QUAL_ALL_INVALID;
  45         }
  46
  47         return wstats;
  48 }
  49
  50 static int iwm_wext_siwfreq(struct net_device *dev,
  51                             struct iw_request_info *info,
  52                             struct iw_freq *freq, char *extra)
  53 {
  54         struct iwm_priv *iwm = ndev_to_iwm(dev);
  55
  56         if (freq->flags == IW_FREQ_AUTO)
  57                 return 0;
  58
  59         /* frequency/channel can only be set in IBSS mode */
  60         if (iwm->conf.mode != UMAC_MODE_IBSS)
  61                 return -EOPNOTSUPP;
  62
  63         return cfg80211_ibss_wext_siwfreq(dev, info, freq, extra);
  64 }
  65
  66 static int iwm_wext_giwfreq(struct net_device *dev,
  67                             struct iw_request_info *info,
  68                             struct iw_freq *freq, char *extra)
  69 {
  70         struct iwm_priv *iwm = ndev_to_iwm(dev);
  71
  72         if (iwm->conf.mode == UMAC_MODE_IBSS)
  73                 return cfg80211_ibss_wext_giwfreq(dev, info, freq, extra);
  74
  75         freq->e = 0;
  76         freq->m = iwm->channel;
  77
  78         return 0;
  79 }
  80
  81 static int iwm_wext_siwap(struct net_device *dev, struct iw_request_info *info,
  82                           struct sockaddr *ap_addr, char *extra)
  83 {
  84         struct iwm_priv *iwm = ndev_to_iwm(dev);
  85
  86         if (iwm->conf.mode == UMAC_MODE_IBSS)
  87                 return cfg80211_ibss_wext_siwap(dev, info, ap_addr, extra);
  88
  89         if (!test_bit(IWM_STATUS_READY, &iwm->status))
  90                 return -EIO;
  91
  92         if (is_zero_ether_addr(ap_addr->sa_data) ||
  93             is_broadcast_ether_addr(ap_addr->sa_data)) {
  94                 IWM_DBG_WEXT(iwm, DBG, "clear mandatory bssid %pM\n",
  95                              iwm->umac_profile->bssid[0]);
  96                 memset(&iwm->umac_profile->bssid[0], 0, ETH_ALEN);
  97                 iwm->umac_profile->bss_num = 0;
  98         } else {
  99                 IWM_DBG_WEXT(iwm, DBG, "add mandatory bssid %pM\n",
 100                              ap_addr->sa_data);
 101                 memcpy(&iwm->umac_profile->bssid[0], ap_addr->sa_data,
 102                        ETH_ALEN);
 103                 iwm->umac_profile->bss_num = 1;
 104         }
 105
 106         if (iwm->umac_profile_active) {
 107                 if (!memcmp(&iwm->umac_profile->bssid[0], iwm->bssid, ETH_ALEN))
 108                         return 0;
 109
 110                 iwm_invalidate_mlme_profile(iwm);
 111         }
 112
 113         if (iwm->umac_profile->ssid.ssid_len)
 114                 return iwm_send_mlme_profile(iwm);
 115
 116         return 0;
 117 }
 118
 119 static int iwm_wext_giwap(struct net_device *dev, struct iw_request_info *info,
 120                           struct sockaddr *ap_addr, char *extra)
 121 {
 122         struct iwm_priv *iwm = ndev_to_iwm(dev);
 123
 124         switch (iwm->conf.mode) {
 125         case UMAC_MODE_IBSS:
 126                 return cfg80211_ibss_wext_giwap(dev, info, ap_addr, extra);
 127         case UMAC_MODE_BSS:
 128                 if (test_bit(IWM_STATUS_ASSOCIATED, &iwm->status)) {
 129                         ap_addr->sa_family = ARPHRD_ETHER;
 130                         memcpy(&ap_addr->sa_data, iwm->bssid, ETH_ALEN);
 131                 } else
 132                         memset(&ap_addr->sa_data, 0, ETH_ALEN);
 133                 break;
 134         default:
 135                 return -EOPNOTSUPP;
 136         }
 137
 138         return 0;
 139 }
 140
 141 static int iwm_wext_siwessid(struct net_device *dev,
 142                              struct iw_request_info *info,
 143                              struct iw_point *data, char *ssid)
 144 {
 145         struct iwm_priv *iwm = ndev_to_iwm(dev);
 146         size_t len = data->length;
 147         int ret;
 148
 149         if (iwm->conf.mode == UMAC_MODE_IBSS)
 150                 return cfg80211_ibss_wext_siwessid(dev, info, data, ssid);
 151
 152         if (!test_bit(IWM_STATUS_READY, &iwm->status))
 153                 return -EIO;
 154
 155         if (len > 0 && ssid[len - 1] == '\0')
 156                 len--;
 157
 158         if (iwm->umac_profile_active) {
 159                 if (iwm->umac_profile->ssid.ssid_len == len &&
 160                     !memcmp(iwm->umac_profile->ssid.ssid, ssid, len))
 161                         return 0;
 162
 163                 ret = iwm_invalidate_mlme_profile(iwm);
 164                 if (ret < 0) {
 165                         IWM_ERR(iwm, "Couldn't invalidate profile\n");
 166                         return ret;
 167                 }
 168         }
 169
 170         iwm->umac_profile->ssid.ssid_len = len;
 171         memcpy(iwm->umac_profile->ssid.ssid, ssid, len);
 172
 173         return iwm_send_mlme_profile(iwm);
 174 }
 175
 176 static int iwm_wext_giwessid(struct net_device *dev,
 177                              struct iw_request_info *info,
 178                              struct iw_point *data, char *ssid)
 179 {
 180         struct iwm_priv *iwm = ndev_to_iwm(dev);
 181
 182         if (iwm->conf.mode == UMAC_MODE_IBSS)
 183                 return cfg80211_ibss_wext_giwessid(dev, info, data, ssid);
 184
 185         if (!test_bit(IWM_STATUS_READY, &iwm->status))
 186                 return -EIO;
 187
 188         data->length = iwm->umac_profile->ssid.ssid_len;
 189         if (data->length) {
 190                 memcpy(ssid, iwm->umac_profile->ssid.ssid, data->length);
 191                 data->flags = 1;
 192         } else
 193                 data->flags = 0;
 194
 195         return 0;
 196 }
 197
 198 static struct iwm_key *
 199 iwm_key_init(struct iwm_priv *iwm, u8 key_idx, bool in_use,
 200              struct iw_encode_ext *ext, u8 alg)
 201 {
 202         struct iwm_key *key = &iwm->keys[key_idx];
 203
 204         memset(key, 0, sizeof(struct iwm_key));
 205         memcpy(key->hdr.mac, ext->addr.sa_data, ETH_ALEN);
 206         key->hdr.key_idx = key_idx;
 207         if (is_broadcast_ether_addr(ext->addr.sa_data))
 208                 key->hdr.multicast = 1;
 209
 210         key->in_use = in_use;
 211         key->flags = ext->ext_flags;
 212         key->alg = alg;
 213         key->key_len = ext->key_len;
 214         memcpy(key->key, ext->key, ext->key_len);
 215
 216         return key;
 217 }
 218
 219 static int iwm_wext_giwrate(struct net_device *dev,
 220                             struct iw_request_info *info,
 221                             struct iw_param *rate, char *extra)
 222 {
 223         struct iwm_priv *iwm = ndev_to_iwm(dev);
 224
 225         rate->value = iwm->rate * 1000000;
 226
 227         return 0;
 228 }
 229
 230 static int iwm_wext_siwencode(struct net_device *dev,
 231                               struct iw_request_info *info,
 232                               struct iw_point *erq, char *key_buf)
 233 {
 234         struct iwm_priv *iwm = ndev_to_iwm(dev);
 235         struct iwm_key *uninitialized_var(key);
 236         int idx, i, uninitialized_var(alg), remove = 0, ret;
 237
 238         IWM_DBG_WEXT(iwm, DBG, "key len: %d\n", erq->length);
 239         IWM_DBG_WEXT(iwm, DBG, "flags: 0x%x\n", erq->flags);
 240
 241         if (!iwm->umac_profile) {
 242                 IWM_ERR(iwm, "UMAC profile not allocated yet\n");
 243                 return -ENODEV;
 244         }
 245
 246         if (erq->length == WLAN_KEY_LEN_WEP40) {
 247                 alg = UMAC_CIPHER_TYPE_WEP_40;
 248                 iwm->umac_profile->sec.ucast_cipher = UMAC_CIPHER_TYPE_WEP_40;
 249                 iwm->umac_profile->sec.mcast_cipher = UMAC_CIPHER_TYPE_WEP_40;
 250         } else if (erq->length == WLAN_KEY_LEN_WEP104) {
 251                 alg = UMAC_CIPHER_TYPE_WEP_104;
 252                 iwm->umac_profile->sec.ucast_cipher = UMAC_CIPHER_TYPE_WEP_104;
 253                 iwm->umac_profile->sec.mcast_cipher = UMAC_CIPHER_TYPE_WEP_104;
 254         }
 255
 256         if (erq->flags & IW_ENCODE_RESTRICTED)
 257                 iwm->umac_profile->sec.auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
 258         else
 259                 iwm->umac_profile->sec.auth_type = UMAC_AUTH_TYPE_OPEN;
 260
 261         idx = erq->flags & IW_ENCODE_INDEX;
 262         if (idx == 0) {
 263                 if (iwm->default_key)
 264                         for (i = 0; i < IWM_NUM_KEYS; i++) {
 265                                 if (iwm->default_key == &iwm->keys[i]) {
 266                                         idx = i;
 267                                         break;
 268                                 }
 269                         }
 270                 else
 271                         iwm->default_key = &iwm->keys[idx];
 272         } else if (idx < 1 || idx > 4) {
 273                 return -EINVAL;
 274         } else
 275                 idx--;
 276
 277         if (erq->flags & IW_ENCODE_DISABLED)
 278                 remove = 1;
 279         else if (erq->length == 0) {
 280                 if (!iwm->keys[idx].in_use)
 281                         return -EINVAL;
 282                 iwm->default_key = &iwm->keys[idx];
 283         }
 284
 285         if (erq->length) {
 286                 key = &iwm->keys[idx];
 287                 memset(key, 0, sizeof(struct iwm_key));
 288                 memset(key->hdr.mac, 0xff, ETH_ALEN);
 289                 key->hdr.key_idx = idx;
 290                 key->hdr.multicast = 1;
 291                 key->in_use = !remove;
 292                 key->alg = alg;
 293                 key->key_len = erq->length;
 294                 memcpy(key->key, key_buf, erq->length);
 295
 296                 IWM_DBG_WEXT(iwm, DBG, "Setting key %d, default: %d\n",
 297                              idx, !!iwm->default_key);
 298         }
 299
 300         if (remove) {
 301                 if ((erq->flags & IW_ENCODE_NOKEY) || (erq->length == 0)) {
 302                         int j;
 303                         for (j = 0; j < IWM_NUM_KEYS; j++)
 304                                 if (iwm->keys[j].in_use) {
 305                                         struct iwm_key *k = &iwm->keys[j];
 306
 307                                         k->in_use = 0;
 308                                         ret = iwm_set_key(iwm, remove, 0, k);
 309                                         if (ret < 0)
 310                                                 return ret;
 311                                 }
 312
 313                         iwm->umac_profile->sec.ucast_cipher =
 314                                                         UMAC_CIPHER_TYPE_NONE;
 315                         iwm->umac_profile->sec.mcast_cipher =
 316                                                         UMAC_CIPHER_TYPE_NONE;
 317                         iwm->umac_profile->sec.auth_type =
 318                                                         UMAC_AUTH_TYPE_OPEN;
 319
 320                         return 0;
 321                 } else {
 322                         key->in_use = 0;
 323                         return iwm_set_key(iwm, remove, 0, key);
 324                 }
 325         }
 326
 327         /*
 328          * If we havent set a profile yet, we cant set keys.
 329          * Keys will be pushed after we're associated.
 330          */
 331         if (!iwm->umac_profile_active)
 332                 return 0;
 333
 334         /*
 335          * If there is a current active profile, but no
 336          * default key, it's not worth trying to associate again.
 337          */
 338         if (!iwm->default_key)
 339                 return 0;
 340
 341         /*
 342          * Here we have an active profile, but a key setting changed.
 343          * We thus have to invalidate the current profile, and push the
 344          * new one. Keys will be pushed when association takes place.
 345          */
 346         ret = iwm_invalidate_mlme_profile(iwm);
 347         if (ret < 0) {
 348                 IWM_ERR(iwm, "Couldn't invalidate profile\n");
 349                 return ret;
 350         }
 351
 352         return iwm_send_mlme_profile(iwm);
 353 }
 354
 355 static int iwm_wext_giwencode(struct net_device *dev,
 356                               struct iw_request_info *info,
 357                               struct iw_point *erq, char *key)
 358 {
 359         struct iwm_priv *iwm = ndev_to_iwm(dev);
 360         int idx, i;
 361
 362         idx = erq->flags & IW_ENCODE_INDEX;
 363         if (idx < 1 || idx > 4) {
 364                 idx = -1;
 365                 if (!iwm->default_key) {
 366                         erq->length = 0;
 367                         erq->flags |= IW_ENCODE_NOKEY;
 368                         return 0;
 369                 } else
 370                         for (i = 0; i < IWM_NUM_KEYS; i++) {
 371                                 if (iwm->default_key == &iwm->keys[i]) {
 372                                         idx = i;
 373                                         break;
 374                                 }
 375                         }
 376                 if (idx < 0)
 377                         return -EINVAL;
 378         } else
 379                 idx--;
 380
 381         erq->flags = idx + 1;
 382
 383         if (!iwm->keys[idx].in_use) {
 384                 erq->length = 0;
 385                 erq->flags |= IW_ENCODE_DISABLED;
 386                 return 0;
 387         }
 388
 389         memcpy(key, iwm->keys[idx].key,
 390                min_t(int, erq->length, iwm->keys[idx].key_len));
 391         erq->length = iwm->keys[idx].key_len;
 392         erq->flags |= IW_ENCODE_ENABLED;
 393
 394         if (iwm->umac_profile->mode == UMAC_MODE_BSS) {
 395                 switch (iwm->umac_profile->sec.auth_type) {
 396                 case UMAC_AUTH_TYPE_OPEN:
 397                         erq->flags |= IW_ENCODE_OPEN;
 398                         break;
 399                 default:
 400                         erq->flags |= IW_ENCODE_RESTRICTED;
 401                         break;
 402                 }
 403         }
 404
 405         return 0;
 406 }
 407
 408 static int iwm_set_wpa_version(struct iwm_priv *iwm, u8 wpa_version)
 409 {
 410         if (wpa_version & IW_AUTH_WPA_VERSION_WPA2)
 411                 iwm->umac_profile->sec.flags = UMAC_SEC_FLG_RSNA_ON_MSK;
 412         else if (wpa_version & IW_AUTH_WPA_VERSION_WPA)
 413                 iwm->umac_profile->sec.flags = UMAC_SEC_FLG_WPA_ON_MSK;
 414         else
 415                 iwm->umac_profile->sec.flags = UMAC_SEC_FLG_LEGACY_PROFILE;
 416
 417         return 0;
 418 }
 419
 420 static int iwm_wext_siwpower(struct net_device *dev,
 421                              struct iw_request_info *info,
 422                              struct iw_param *wrq, char *extra)
 423 {
 424         struct iwm_priv *iwm = ndev_to_iwm(dev);
 425         u32 power_index;
 426
 427         if (wrq->disabled) {
 428                 power_index = IWM_POWER_INDEX_MIN;
 429                 goto set;
 430         } else
 431                 power_index = IWM_POWER_INDEX_DEFAULT;
 432
 433         switch (wrq->flags & IW_POWER_MODE) {
 434         case IW_POWER_ON:
 435         case IW_POWER_MODE:
 436         case IW_POWER_ALL_R:
 437                 break;
 438         default:
 439                 return -EINVAL;
 440         }
 441
 442  set:
 443         if (power_index == iwm->conf.power_index)
 444                 return 0;
 445
 446         iwm->conf.power_index = power_index;
 447
 448         return iwm_umac_set_config_fix(iwm, UMAC_PARAM_TBL_CFG_FIX,
 449                                        CFG_POWER_INDEX, iwm->conf.power_index);
 450 }
 451
 452 static int iwm_wext_giwpower(struct net_device *dev,
 453                              struct iw_request_info *info,
 454                              union iwreq_data *wrqu, char *extra)
 455 {
 456         struct iwm_priv *iwm = ndev_to_iwm(dev);
 457
 458         wrqu->power.disabled = (iwm->conf.power_index == IWM_POWER_INDEX_MIN);
 459
 460         return 0;
 461 }
 462
 463 static int iwm_set_key_mgt(struct iwm_priv *iwm, u8 key_mgt)
 464 {
 465         u8 *auth_type = &iwm->umac_profile->sec.auth_type;
 466
 467         if (key_mgt == IW_AUTH_KEY_MGMT_802_1X)
 468                 *auth_type = UMAC_AUTH_TYPE_8021X;
 469         else if (key_mgt == IW_AUTH_KEY_MGMT_PSK) {
 470                 if (iwm->umac_profile->sec.flags &
 471                     (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK))
 472                         *auth_type = UMAC_AUTH_TYPE_RSNA_PSK;
 473                 else
 474                         *auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
 475         } else {
 476                 IWM_ERR(iwm, "Invalid key mgt: 0x%x\n", key_mgt);
 477                 return -EINVAL;
 478         }
 479
 480         return 0;
 481 }
 482
 483 static int iwm_set_cipher(struct iwm_priv *iwm, u8 cipher, u8 ucast)
 484 {
 485         u8 *profile_cipher = ucast ? &iwm->umac_profile->sec.ucast_cipher :
 486                 &iwm->umac_profile->sec.mcast_cipher;
 487
 488         switch (cipher) {
 489         case IW_AUTH_CIPHER_NONE:
 490                 *profile_cipher = UMAC_CIPHER_TYPE_NONE;
 491                 break;
 492         case IW_AUTH_CIPHER_WEP40:
 493                 *profile_cipher = UMAC_CIPHER_TYPE_WEP_40;
 494                 break;
 495         case IW_AUTH_CIPHER_TKIP:
 496                 *profile_cipher = UMAC_CIPHER_TYPE_TKIP;
 497                 break;
 498         case IW_AUTH_CIPHER_CCMP:
 499                 *profile_cipher = UMAC_CIPHER_TYPE_CCMP;
 500                 break;
 501         case IW_AUTH_CIPHER_WEP104:
 502                 *profile_cipher = UMAC_CIPHER_TYPE_WEP_104;
 503                 break;
 504         default:
 505                 IWM_ERR(iwm, "Unsupported cipher: 0x%x\n", cipher);
 506                 return -ENOTSUPP;
 507         }
 508
 509         return 0;
 510 }
 511
 512 static int iwm_set_auth_alg(struct iwm_priv *iwm, u8 auth_alg)
 513 {
 514         u8 *auth_type = &iwm->umac_profile->sec.auth_type;
 515
 516         switch (auth_alg) {
 517         case IW_AUTH_ALG_OPEN_SYSTEM:
 518                 *auth_type = UMAC_AUTH_TYPE_OPEN;
 519                 break;
 520         case IW_AUTH_ALG_SHARED_KEY:
 521                 if (iwm->umac_profile->sec.flags &
 522                     (UMAC_SEC_FLG_WPA_ON_MSK | UMAC_SEC_FLG_RSNA_ON_MSK)) {
 523                         if (*auth_type == UMAC_AUTH_TYPE_8021X)
 524                                 return -EINVAL;
 525                         *auth_type = UMAC_AUTH_TYPE_RSNA_PSK;
 526                 } else {
 527                         *auth_type = UMAC_AUTH_TYPE_LEGACY_PSK;
 528                 }
 529                 break;
 530         case IW_AUTH_ALG_LEAP:
 531         default:
 532                 IWM_ERR(iwm, "Unsupported auth alg: 0x%x\n", auth_alg);
 533                 return -ENOTSUPP;
 534         }
 535
 536         return 0;
 537 }
 538
 539 static int iwm_wext_siwauth(struct net_device *dev,
 540                             struct iw_request_info *info,
 541                             struct iw_param *data, char *extra)
 542 {
 543         struct iwm_priv *iwm = ndev_to_iwm(dev);
 544         int ret;
 545
 546         if ((data->flags) &
 547             (IW_AUTH_WPA_VERSION | IW_AUTH_KEY_MGMT |
 548              IW_AUTH_WPA_ENABLED | IW_AUTH_80211_AUTH_ALG)) {
 549                 /* We need to invalidate the current profile */
 550                 if (iwm->umac_profile_active) {
 551                         ret = iwm_invalidate_mlme_profile(iwm);
 552                         if (ret < 0) {
 553                                 IWM_ERR(iwm, "Couldn't invalidate profile\n");
 554                                 return ret;
 555                         }
 556                 }
 557         }
 558
 559         switch (data->flags & IW_AUTH_INDEX) {
 560         case IW_AUTH_WPA_VERSION:
 561                 return iwm_set_wpa_version(iwm, data->value);
 562                 break;
 563         case IW_AUTH_CIPHER_PAIRWISE:
 564                 return iwm_set_cipher(iwm, data->value, 1);
 565                 break;
 566         case IW_AUTH_CIPHER_GROUP:
 567                 return iwm_set_cipher(iwm, data->value, 0);
 568                 break;
 569         case IW_AUTH_KEY_MGMT:
 570                 return iwm_set_key_mgt(iwm, data->value);
 571                 break;
 572         case IW_AUTH_80211_AUTH_ALG:
 573                 return iwm_set_auth_alg(iwm, data->value);
 574                 break;
 575         default:
 576                 return -ENOTSUPP;
 577         }
 578
 579         return 0;
 580 }
 581
 582 static int iwm_wext_giwauth(struct net_device *dev,
 583                             struct iw_request_info *info,
 584                             struct iw_param *data, char *extra)
 585 {
 586         return 0;
 587 }
 588
 589 static int iwm_wext_siwencodeext(struct net_device *dev,
 590                                  struct iw_request_info *info,
 591                                  struct iw_point *erq, char *extra)
 592 {
 593         struct iwm_priv *iwm = ndev_to_iwm(dev);
 594         struct iwm_key *key;
 595         struct iw_encode_ext *ext = (struct iw_encode_ext *) extra;
 596         int uninitialized_var(alg), idx, i, remove = 0;
 597
 598         IWM_DBG_WEXT(iwm, DBG, "alg: 0x%x\n", ext->alg);
 599         IWM_DBG_WEXT(iwm, DBG, "key len: %d\n", ext->key_len);
 600         IWM_DBG_WEXT(iwm, DBG, "ext_flags: 0x%x\n", ext->ext_flags);
 601         IWM_DBG_WEXT(iwm, DBG, "flags: 0x%x\n", erq->flags);
 602         IWM_DBG_WEXT(iwm, DBG, "length: 0x%x\n", erq->length);
 603
 604         switch (ext->alg) {
 605         case IW_ENCODE_ALG_NONE:
 606                 remove = 1;
 607                 break;
 608         case IW_ENCODE_ALG_WEP:
 609                 if (ext->key_len == WLAN_KEY_LEN_WEP40)
 610                         alg = UMAC_CIPHER_TYPE_WEP_40;
 611                 else if (ext->key_len == WLAN_KEY_LEN_WEP104)
 612                         alg = UMAC_CIPHER_TYPE_WEP_104;
 613                 else {
 614                         IWM_ERR(iwm, "Invalid key length: %d\n", ext->key_len);
 615                         return -EINVAL;
 616                 }
 617
 618                 break;
 619         case IW_ENCODE_ALG_TKIP:
 620                 alg = UMAC_CIPHER_TYPE_TKIP;
 621                 break;
 622         case IW_ENCODE_ALG_CCMP:
 623                 alg = UMAC_CIPHER_TYPE_CCMP;
 624                 break;
 625         default:
 626                 return -EOPNOTSUPP;
 627         }
 628
 629         idx = erq->flags & IW_ENCODE_INDEX;
 630
 631         if (idx == 0) {
 632                 if (iwm->default_key)
 633                         for (i = 0; i < IWM_NUM_KEYS; i++) {
 634                                 if (iwm->default_key == &iwm->keys[i]) {
 635                                         idx = i;
 636                                         break;
 637                                 }
 638                         }
 639         } else if (idx < 1 || idx > 4) {
 640                 return -EINVAL;
 641         } else
 642                 idx--;
 643
 644         if (erq->flags & IW_ENCODE_DISABLED)
 645                 remove = 1;
 646         else if ((erq->length == 0) ||
 647                  (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY)) {
 648                 iwm->default_key = &iwm->keys[idx];
 649                 if (iwm->umac_profile_active && ext->alg == IW_ENCODE_ALG_WEP)
 650                         return iwm_set_tx_key(iwm, idx);
 651         }
 652
 653         key = iwm_key_init(iwm, idx, !remove, ext, alg);
 654
 655         return iwm_set_key(iwm, remove, !iwm->default_key, key);
 656 }
 657
 658 static const iw_handler iwm_handlers[] =
 659 {
 660         (iw_handler) NULL,                              /* SIOCSIWCOMMIT */
 661         (iw_handler) cfg80211_wext_giwname,             /* SIOCGIWNAME */
 662         (iw_handler) NULL,                              /* SIOCSIWNWID */
 663         (iw_handler) NULL,                              /* SIOCGIWNWID */
 664         (iw_handler) iwm_wext_siwfreq,                  /* SIOCSIWFREQ */
 665         (iw_handler) iwm_wext_giwfreq,                  /* SIOCGIWFREQ */
 666         (iw_handler) cfg80211_wext_siwmode,             /* SIOCSIWMODE */
 667         (iw_handler) cfg80211_wext_giwmode,             /* SIOCGIWMODE */
 668         (iw_handler) NULL,                              /* SIOCSIWSENS */
 669         (iw_handler) NULL,                              /* SIOCGIWSENS */
 670         (iw_handler) NULL /* not used */,               /* SIOCSIWRANGE */
 671         (iw_handler) cfg80211_wext_giwrange,            /* SIOCGIWRANGE */
 672         (iw_handler) NULL /* not used */,               /* SIOCSIWPRIV */
 673         (iw_handler) NULL /* kernel code */,            /* SIOCGIWPRIV */
 674         (iw_handler) NULL /* not used */,               /* SIOCSIWSTATS */
 675         (iw_handler) NULL /* kernel code */,            /* SIOCGIWSTATS */
 676         (iw_handler) NULL,                              /* SIOCSIWSPY */
 677         (iw_handler) NULL,                              /* SIOCGIWSPY */
 678         (iw_handler) NULL,                              /* SIOCSIWTHRSPY */
 679         (iw_handler) NULL,                              /* SIOCGIWTHRSPY */
 680         (iw_handler) iwm_wext_siwap,                    /* SIOCSIWAP */
 681         (iw_handler) iwm_wext_giwap,                    /* SIOCGIWAP */
 682         (iw_handler) NULL,                              /* SIOCSIWMLME */
 683         (iw_handler) NULL,                              /* SIOCGIWAPLIST */
 684         (iw_handler) cfg80211_wext_siwscan,             /* SIOCSIWSCAN */
 685         (iw_handler) cfg80211_wext_giwscan,             /* SIOCGIWSCAN */
 686         (iw_handler) iwm_wext_siwessid,                 /* SIOCSIWESSID */
 687         (iw_handler) iwm_wext_giwessid,                 /* SIOCGIWESSID */
 688         (iw_handler) NULL,                              /* SIOCSIWNICKN */
 689         (iw_handler) NULL,                              /* SIOCGIWNICKN */
 690         (iw_handler) NULL,                              /* -- hole -- */
 691         (iw_handler) NULL,                              /* -- hole -- */
 692         (iw_handler) NULL,                              /* SIOCSIWRATE */
 693         (iw_handler) iwm_wext_giwrate,                  /* SIOCGIWRATE */
 694         (iw_handler) cfg80211_wext_siwrts,              /* SIOCSIWRTS */
 695         (iw_handler) cfg80211_wext_giwrts,              /* SIOCGIWRTS */
 696         (iw_handler) cfg80211_wext_siwfrag,             /* SIOCSIWFRAG */
 697         (iw_handler) cfg80211_wext_giwfrag,             /* SIOCGIWFRAG */
 698         (iw_handler) NULL,                              /* SIOCSIWTXPOW */
 699         (iw_handler) NULL,                              /* SIOCGIWTXPOW */
 700         (iw_handler) NULL,                              /* SIOCSIWRETRY */
 701         (iw_handler) NULL,                              /* SIOCGIWRETRY */
 702         (iw_handler) iwm_wext_siwencode,                /* SIOCSIWENCODE */
 703         (iw_handler) iwm_wext_giwencode,                /* SIOCGIWENCODE */
 704         (iw_handler) iwm_wext_siwpower,                 /* SIOCSIWPOWER */
 705         (iw_handler) iwm_wext_giwpower,                 /* SIOCGIWPOWER */
 706         (iw_handler) NULL,                              /* -- hole -- */
 707         (iw_handler) NULL,                              /* -- hole -- */
 708         (iw_handler) NULL,                              /* SIOCSIWGENIE */
 709         (iw_handler) NULL,                              /* SIOCGIWGENIE */
 710         (iw_handler) iwm_wext_siwauth,                  /* SIOCSIWAUTH */
 711         (iw_handler) iwm_wext_giwauth,                  /* SIOCGIWAUTH */
 712         (iw_handler) iwm_wext_siwencodeext,             /* SIOCSIWENCODEEXT */
 713         (iw_handler) NULL,                              /* SIOCGIWENCODEEXT */
 714         (iw_handler) NULL,                              /* SIOCSIWPMKSA */
 715         (iw_handler) NULL,                              /* -- hole -- */
 716 };
 717
 718 const struct iw_handler_def iwm_iw_handler_def = {
 719         .num_standard   = ARRAY_SIZE(iwm_handlers),
 720         .standard       = (iw_handler *) iwm_handlers,
 721         .get_wireless_stats = iwm_get_wireless_stats,
 722 };
 723