kernel/drivers/staging/rtl8192u/ieee80211/ieee80211_wx.c

   1 /******************************************************************************
   2
   3   Copyright(c) 2004 Intel Corporation. All rights reserved.
   4
   5   Portions of this file are based on the WEP enablement code provided by the
   6   Host AP project hostap-drivers v0.1.3
   7   Copyright (c) 2001-2002, SSH Communications Security Corp and Jouni Malinen
   8   <jkmaline@cc.hut.fi>
   9   Copyright (c) 2002-2003, Jouni Malinen <jkmaline@cc.hut.fi>
  10
  11   This program is free software; you can redistribute it and/or modify it
  12   under the terms of version 2 of the GNU General Public License as
  13   published by the Free Software Foundation.
  14
  15   This program is distributed in the hope that it will be useful, but WITHOUT
  16   ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  17   FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  18   more details.
  19
  20   You should have received a copy of the GNU General Public License along with
  21   this program; if not, write to the Free Software Foundation, Inc., 59
  22   Temple Place - Suite 330, Boston, MA  02111-1307, USA.
  23
  24   The full GNU General Public License is included in this distribution in the
  25   file called LICENSE.
  26
  27   Contact Information:
  28   James P. Ketrenos <ipw2100-admin@linux.intel.com>
  29   Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  30
  31 ******************************************************************************/
  32 #include <linux/wireless.h>
  33 #include <linux/kmod.h>
  34 #include <linux/slab.h>
  35 #include <linux/module.h>
  36
  37 #include "ieee80211.h"
  38 struct modes_unit {
  39         char *mode_string;
  40         int mode_size;
  41 };
  42 static struct modes_unit ieee80211_modes[] = {
  43         {"a", 1},
  44         {"b", 1},
  45         {"g", 1},
  46         {"?", 1},
  47         {"N-24G", 5},
  48         {"N-5G", 4},
  49 };
  50
  51 #define iwe_stream_add_event_rsl iwe_stream_add_event
  52
  53 #define MAX_CUSTOM_LEN 64
  54 static inline char *rtl819x_translate_scan(struct ieee80211_device *ieee,
  55                                            char *start, char *stop,
  56                                            struct ieee80211_network *network,
  57                                            struct iw_request_info *info)
  58 {
  59         char custom[MAX_CUSTOM_LEN];
  60         char proto_name[IFNAMSIZ];
  61         char *pname = proto_name;
  62         char *p;
  63         struct iw_event iwe;
  64         int i, j;
  65         u16 max_rate, rate;
  66         static u8       EWC11NHTCap[] = {0x00, 0x90, 0x4c, 0x33};
  67
  68         /* First entry *MUST* be the AP MAC address */
  69         iwe.cmd = SIOCGIWAP;
  70         iwe.u.ap_addr.sa_family = ARPHRD_ETHER;
  71         memcpy(iwe.u.ap_addr.sa_data, network->bssid, ETH_ALEN);
  72         start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_ADDR_LEN);
  73         /* Remaining entries will be displayed in the order we provide them */
  74
  75         /* Add the ESSID */
  76         iwe.cmd = SIOCGIWESSID;
  77         iwe.u.data.flags = 1;
  78 //      if (network->flags & NETWORK_EMPTY_ESSID) {
  79         if (network->ssid_len == 0) {
  80                 iwe.u.data.length = sizeof("<hidden>");
  81                 start = iwe_stream_add_point(info, start, stop, &iwe, "<hidden>");
  82         } else {
  83                 iwe.u.data.length = min(network->ssid_len, (u8)32);
  84                 start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
  85         }
  86         /* Add the protocol name */
  87         iwe.cmd = SIOCGIWNAME;
  88         for(i=0; i<ARRAY_SIZE(ieee80211_modes); i++) {
  89                 if(network->mode&(1<<i)) {
  90                         sprintf(pname,ieee80211_modes[i].mode_string,ieee80211_modes[i].mode_size);
  91                         pname +=ieee80211_modes[i].mode_size;
  92                 }
  93         }
  94         *pname = '\0';
  95         snprintf(iwe.u.name, IFNAMSIZ, "IEEE802.11%s", proto_name);
  96         start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_CHAR_LEN);
  97         /* Add mode */
  98         iwe.cmd = SIOCGIWMODE;
  99         if (network->capability &
 100             (WLAN_CAPABILITY_BSS | WLAN_CAPABILITY_IBSS)) {
 101                 if (network->capability & WLAN_CAPABILITY_BSS)
 102                         iwe.u.mode = IW_MODE_MASTER;
 103                 else
 104                         iwe.u.mode = IW_MODE_ADHOC;
 105                 start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_UINT_LEN);
 106         }
 107
 108         /* Add frequency/channel */
 109         iwe.cmd = SIOCGIWFREQ;
 110 /*      iwe.u.freq.m = ieee80211_frequency(network->channel, network->mode);
 111         iwe.u.freq.e = 3; */
 112         iwe.u.freq.m = network->channel;
 113         iwe.u.freq.e = 0;
 114         iwe.u.freq.i = 0;
 115         start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_FREQ_LEN);
 116         /* Add encryption capability */
 117         iwe.cmd = SIOCGIWENCODE;
 118         if (network->capability & WLAN_CAPABILITY_PRIVACY)
 119                 iwe.u.data.flags = IW_ENCODE_ENABLED | IW_ENCODE_NOKEY;
 120         else
 121                 iwe.u.data.flags = IW_ENCODE_DISABLED;
 122         iwe.u.data.length = 0;
 123         start = iwe_stream_add_point(info, start, stop, &iwe, network->ssid);
 124         /* Add basic and extended rates */
 125         max_rate = 0;
 126         p = custom;
 127         p += snprintf(p, MAX_CUSTOM_LEN - (p - custom), " Rates (Mb/s): ");
 128         for (i = 0, j = 0; i < network->rates_len; ) {
 129                 if (j < network->rates_ex_len &&
 130                     ((network->rates_ex[j] & 0x7F) <
 131                      (network->rates[i] & 0x7F)))
 132                         rate = network->rates_ex[j++] & 0x7F;
 133                 else
 134                         rate = network->rates[i++] & 0x7F;
 135                 if (rate > max_rate)
 136                         max_rate = rate;
 137                 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
 138                               "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
 139         }
 140         for (; j < network->rates_ex_len; j++) {
 141                 rate = network->rates_ex[j] & 0x7F;
 142                 p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
 143                               "%d%s ", rate >> 1, (rate & 1) ? ".5" : "");
 144                 if (rate > max_rate)
 145                         max_rate = rate;
 146         }
 147
 148         if (network->mode >= IEEE_N_24G)//add N rate here;
 149         {
 150                 PHT_CAPABILITY_ELE ht_cap = NULL;
 151                 bool is40M = false, isShortGI = false;
 152                 u8 max_mcs = 0;
 153                 if (!memcmp(network->bssht.bdHTCapBuf, EWC11NHTCap, 4))
 154                         ht_cap = (PHT_CAPABILITY_ELE)&network->bssht.bdHTCapBuf[4];
 155                 else
 156                         ht_cap = (PHT_CAPABILITY_ELE)&network->bssht.bdHTCapBuf[0];
 157                 is40M = (ht_cap->ChlWidth)?1:0;
 158                 isShortGI = (ht_cap->ChlWidth)?
 159                                                 ((ht_cap->ShortGI40Mhz)?1:0):
 160                                                 ((ht_cap->ShortGI20Mhz)?1:0);
 161
 162                 max_mcs = HTGetHighestMCSRate(ieee, ht_cap->MCS, MCS_FILTER_ALL);
 163                 rate = MCS_DATA_RATE[is40M][isShortGI][max_mcs&0x7f];
 164                 if (rate > max_rate)
 165                         max_rate = rate;
 166         }
 167         iwe.cmd = SIOCGIWRATE;
 168         iwe.u.bitrate.fixed = iwe.u.bitrate.disabled = 0;
 169         iwe.u.bitrate.value = max_rate * 500000;
 170         start = iwe_stream_add_event_rsl(info, start, stop, &iwe,
 171                                      IW_EV_PARAM_LEN);
 172         iwe.cmd = IWEVCUSTOM;
 173         iwe.u.data.length = p - custom;
 174         if (iwe.u.data.length)
 175                 start = iwe_stream_add_point(info, start, stop, &iwe, custom);
 176         /* Add quality statistics */
 177         /* TODO: Fix these values... */
 178         iwe.cmd = IWEVQUAL;
 179         iwe.u.qual.qual = network->stats.signal;
 180         iwe.u.qual.level = network->stats.rssi;
 181         iwe.u.qual.noise = network->stats.noise;
 182         iwe.u.qual.updated = network->stats.mask & IEEE80211_STATMASK_WEMASK;
 183         if (!(network->stats.mask & IEEE80211_STATMASK_RSSI))
 184                 iwe.u.qual.updated |= IW_QUAL_LEVEL_INVALID;
 185         if (!(network->stats.mask & IEEE80211_STATMASK_NOISE))
 186                 iwe.u.qual.updated |= IW_QUAL_NOISE_INVALID;
 187         if (!(network->stats.mask & IEEE80211_STATMASK_SIGNAL))
 188                 iwe.u.qual.updated |= IW_QUAL_QUAL_INVALID;
 189         iwe.u.qual.updated = 7;
 190         start = iwe_stream_add_event_rsl(info, start, stop, &iwe, IW_EV_QUAL_LEN);
 191         iwe.cmd = IWEVCUSTOM;
 192         p = custom;
 193
 194         iwe.u.data.length = p - custom;
 195         if (iwe.u.data.length)
 196             start = iwe_stream_add_point(info, start, stop, &iwe, custom);
 197
 198         if (ieee->wpa_enabled && network->wpa_ie_len){
 199                 char buf[MAX_WPA_IE_LEN * 2 + 30];
 200         //      printk("WPA IE\n");
 201                 u8 *p = buf;
 202                 p += sprintf(p, "wpa_ie=");
 203                 for (i = 0; i < network->wpa_ie_len; i++) {
 204                         p += sprintf(p, "%02x", network->wpa_ie[i]);
 205                 }
 206
 207                 memset(&iwe, 0, sizeof(iwe));
 208                 iwe.cmd = IWEVCUSTOM;
 209                 iwe.u.data.length = strlen(buf);
 210                 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
 211         }
 212
 213         if (ieee->wpa_enabled && network->rsn_ie_len){
 214                 char buf[MAX_WPA_IE_LEN * 2 + 30];
 215
 216                 u8 *p = buf;
 217                 p += sprintf(p, "rsn_ie=");
 218                 for (i = 0; i < network->rsn_ie_len; i++) {
 219                         p += sprintf(p, "%02x", network->rsn_ie[i]);
 220                 }
 221
 222                 memset(&iwe, 0, sizeof(iwe));
 223                 iwe.cmd = IWEVCUSTOM;
 224                 iwe.u.data.length = strlen(buf);
 225                 start = iwe_stream_add_point(info, start, stop, &iwe, buf);
 226         }
 227
 228
 229         /* Add EXTRA: Age to display seconds since last beacon/probe response
 230          * for given network. */
 231         iwe.cmd = IWEVCUSTOM;
 232         p = custom;
 233         p += snprintf(p, MAX_CUSTOM_LEN - (p - custom),
 234                       " Last beacon: %lums ago", (jiffies - network->last_scanned) / (HZ / 100));
 235         iwe.u.data.length = p - custom;
 236         if (iwe.u.data.length)
 237             start = iwe_stream_add_point(info, start, stop, &iwe, custom);
 238
 239         return start;
 240 }
 241
 242 int ieee80211_wx_get_scan(struct ieee80211_device *ieee,
 243                           struct iw_request_info *info,
 244                           union iwreq_data *wrqu, char *extra)
 245 {
 246         struct ieee80211_network *network;
 247         unsigned long flags;
 248
 249         char *ev = extra;
 250 //      char *stop = ev + IW_SCAN_MAX_DATA;
 251         char *stop = ev + wrqu->data.length;//IW_SCAN_MAX_DATA;
 252         //char *stop = ev + IW_SCAN_MAX_DATA;
 253         int i = 0;
 254         int err = 0;
 255         IEEE80211_DEBUG_WX("Getting scan\n");
 256         down(&ieee->wx_sem);
 257         spin_lock_irqsave(&ieee->lock, flags);
 258
 259         list_for_each_entry(network, &ieee->network_list, list) {
 260                 i++;
 261                 if((stop-ev)<200)
 262                 {
 263                         err = -E2BIG;
 264                         break;
 265                                                                                                 }
 266                 if (ieee->scan_age == 0 ||
 267                     time_after(network->last_scanned + ieee->scan_age, jiffies))
 268                         ev = rtl819x_translate_scan(ieee, ev, stop, network, info);
 269                 else
 270                         IEEE80211_DEBUG_SCAN(
 271                                 "Not showing network '%s ("
 272                                 "%pM)' due to age (%lums).\n",
 273                                 escape_essid(network->ssid,
 274                                              network->ssid_len),
 275                                 network->bssid,
 276                                 (jiffies - network->last_scanned) / (HZ / 100));
 277         }
 278
 279         spin_unlock_irqrestore(&ieee->lock, flags);
 280         up(&ieee->wx_sem);
 281         wrqu->data.length = ev -  extra;
 282         wrqu->data.flags = 0;
 283
 284         IEEE80211_DEBUG_WX("exit: %d networks returned.\n", i);
 285
 286         return err;
 287 }
 288 EXPORT_SYMBOL(ieee80211_wx_get_scan);
 289
 290 int ieee80211_wx_set_encode(struct ieee80211_device *ieee,
 291                             struct iw_request_info *info,
 292                             union iwreq_data *wrqu, char *keybuf)
 293 {
 294         struct iw_point *erq = &(wrqu->encoding);
 295         struct net_device *dev = ieee->dev;
 296         struct ieee80211_security sec = {
 297                 .flags = 0
 298         };
 299         int i, key, key_provided, len;
 300         struct ieee80211_crypt_data **crypt;
 301
 302         IEEE80211_DEBUG_WX("SET_ENCODE\n");
 303
 304         key = erq->flags & IW_ENCODE_INDEX;
 305         if (key) {
 306                 if (key > WEP_KEYS)
 307                         return -EINVAL;
 308                 key--;
 309                 key_provided = 1;
 310         } else {
 311                 key_provided = 0;
 312                 key = ieee->tx_keyidx;
 313         }
 314
 315         IEEE80211_DEBUG_WX("Key: %d [%s]\n", key, key_provided ?
 316                            "provided" : "default");
 317         crypt = &ieee->crypt[key];
 318
 319         if (erq->flags & IW_ENCODE_DISABLED) {
 320                 if (key_provided && *crypt) {
 321                         IEEE80211_DEBUG_WX("Disabling encryption on key %d.\n",
 322                                            key);
 323                         ieee80211_crypt_delayed_deinit(ieee, crypt);
 324                 } else
 325                         IEEE80211_DEBUG_WX("Disabling encryption.\n");
 326
 327                 /* Check all the keys to see if any are still configured,
 328                  * and if no key index was provided, de-init them all */
 329                 for (i = 0; i < WEP_KEYS; i++) {
 330                         if (ieee->crypt[i] != NULL) {
 331                                 if (key_provided)
 332                                         break;
 333                                 ieee80211_crypt_delayed_deinit(
 334                                         ieee, &ieee->crypt[i]);
 335                         }
 336                 }
 337
 338                 if (i == WEP_KEYS) {
 339                         sec.enabled = 0;
 340                         sec.level = SEC_LEVEL_0;
 341                         sec.flags |= SEC_ENABLED | SEC_LEVEL;
 342                 }
 343
 344                 goto done;
 345         }
 346
 347
 348
 349         sec.enabled = 1;
 350         sec.flags |= SEC_ENABLED;
 351
 352         if (*crypt != NULL && (*crypt)->ops != NULL &&
 353             strcmp((*crypt)->ops->name, "WEP") != 0) {
 354                 /* changing to use WEP; deinit previously used algorithm
 355                  * on this key */
 356                 ieee80211_crypt_delayed_deinit(ieee, crypt);
 357         }
 358
 359         if (*crypt == NULL) {
 360                 struct ieee80211_crypt_data *new_crypt;
 361
 362                 /* take WEP into use */
 363                 new_crypt = kzalloc(sizeof(struct ieee80211_crypt_data),
 364                                     GFP_KERNEL);
 365                 if (new_crypt == NULL)
 366                         return -ENOMEM;
 367                 new_crypt->ops = ieee80211_get_crypto_ops("WEP");
 368                 if (!new_crypt->ops) {
 369                         request_module("ieee80211_crypt_wep");
 370                         new_crypt->ops = ieee80211_get_crypto_ops("WEP");
 371                 }
 372                 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
 373                         new_crypt->priv = new_crypt->ops->init(key);
 374
 375                 if (!new_crypt->ops || !new_crypt->priv) {
 376                         kfree(new_crypt);
 377                         new_crypt = NULL;
 378
 379                         printk(KERN_WARNING "%s: could not initialize WEP: "
 380                                "load module ieee80211_crypt_wep\n",
 381                                dev->name);
 382                         return -EOPNOTSUPP;
 383                 }
 384                 *crypt = new_crypt;
 385         }
 386
 387         /* If a new key was provided, set it up */
 388         if (erq->length > 0) {
 389                 len = erq->length <= 5 ? 5 : 13;
 390                 memcpy(sec.keys[key], keybuf, erq->length);
 391                 if (len > erq->length)
 392                         memset(sec.keys[key] + erq->length, 0,
 393                                len - erq->length);
 394                 IEEE80211_DEBUG_WX("Setting key %d to '%s' (%d:%d bytes)\n",
 395                                    key, escape_essid(sec.keys[key], len),
 396                                    erq->length, len);
 397                 sec.key_sizes[key] = len;
 398                 (*crypt)->ops->set_key(sec.keys[key], len, NULL,
 399                                        (*crypt)->priv);
 400                 sec.flags |= (1 << key);
 401                 /* This ensures a key will be activated if no key is
 402                  * explicitely set */
 403                 if (key == sec.active_key)
 404                         sec.flags |= SEC_ACTIVE_KEY;
 405                 ieee->tx_keyidx = key;
 406
 407         } else {
 408                 len = (*crypt)->ops->get_key(sec.keys[key], WEP_KEY_LEN,
 409                                              NULL, (*crypt)->priv);
 410                 if (len == 0) {
 411                         /* Set a default key of all 0 */
 412                         printk("Setting key %d to all zero.\n",
 413                                            key);
 414
 415                         IEEE80211_DEBUG_WX("Setting key %d to all zero.\n",
 416                                            key);
 417                         memset(sec.keys[key], 0, 13);
 418                         (*crypt)->ops->set_key(sec.keys[key], 13, NULL,
 419                                                (*crypt)->priv);
 420                         sec.key_sizes[key] = 13;
 421                         sec.flags |= (1 << key);
 422                 }
 423
 424                 /* No key data - just set the default TX key index */
 425                 if (key_provided) {
 426                         IEEE80211_DEBUG_WX(
 427                                 "Setting key %d to default Tx key.\n", key);
 428                         ieee->tx_keyidx = key;
 429                         sec.active_key = key;
 430                         sec.flags |= SEC_ACTIVE_KEY;
 431                 }
 432         }
 433
 434  done:
 435         ieee->open_wep = !(erq->flags & IW_ENCODE_RESTRICTED);
 436         ieee->auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
 437         sec.auth_mode = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
 438         sec.flags |= SEC_AUTH_MODE;
 439         IEEE80211_DEBUG_WX("Auth: %s\n", sec.auth_mode == WLAN_AUTH_OPEN ?
 440                            "OPEN" : "SHARED KEY");
 441
 442         /* For now we just support WEP, so only set that security level...
 443          * TODO: When WPA is added this is one place that needs to change */
 444         sec.flags |= SEC_LEVEL;
 445         sec.level = SEC_LEVEL_1; /* 40 and 104 bit WEP */
 446
 447         if (ieee->set_security)
 448                 ieee->set_security(dev, &sec);
 449
 450         /* Do not reset port if card is in Managed mode since resetting will
 451          * generate new IEEE 802.11 authentication which may end up in looping
 452          * with IEEE 802.1X.  If your hardware requires a reset after WEP
 453          * configuration (for example... Prism2), implement the reset_port in
 454          * the callbacks structures used to initialize the 802.11 stack. */
 455         if (ieee->reset_on_keychange &&
 456             ieee->iw_mode != IW_MODE_INFRA &&
 457             ieee->reset_port && ieee->reset_port(dev)) {
 458                 printk(KERN_DEBUG "%s: reset_port failed\n", dev->name);
 459                 return -EINVAL;
 460         }
 461         return 0;
 462 }
 463 EXPORT_SYMBOL(ieee80211_wx_set_encode);
 464
 465 int ieee80211_wx_get_encode(struct ieee80211_device *ieee,
 466                             struct iw_request_info *info,
 467                             union iwreq_data *wrqu, char *keybuf)
 468 {
 469         struct iw_point *erq = &(wrqu->encoding);
 470         int len, key;
 471         struct ieee80211_crypt_data *crypt;
 472
 473         IEEE80211_DEBUG_WX("GET_ENCODE\n");
 474
 475         if(ieee->iw_mode == IW_MODE_MONITOR)
 476                 return -1;
 477
 478         key = erq->flags & IW_ENCODE_INDEX;
 479         if (key) {
 480                 if (key > WEP_KEYS)
 481                         return -EINVAL;
 482                 key--;
 483         } else
 484                 key = ieee->tx_keyidx;
 485
 486         crypt = ieee->crypt[key];
 487         erq->flags = key + 1;
 488
 489         if (crypt == NULL || crypt->ops == NULL) {
 490                 erq->length = 0;
 491                 erq->flags |= IW_ENCODE_DISABLED;
 492                 return 0;
 493         }
 494         len = crypt->ops->get_key(keybuf, SCM_KEY_LEN, NULL, crypt->priv);
 495         erq->length = (len >= 0 ? len : 0);
 496
 497         erq->flags |= IW_ENCODE_ENABLED;
 498
 499         if (ieee->open_wep)
 500                 erq->flags |= IW_ENCODE_OPEN;
 501         else
 502                 erq->flags |= IW_ENCODE_RESTRICTED;
 503
 504         return 0;
 505 }
 506 EXPORT_SYMBOL(ieee80211_wx_get_encode);
 507
 508 int ieee80211_wx_set_encode_ext(struct ieee80211_device *ieee,
 509                                struct iw_request_info *info,
 510                                union iwreq_data *wrqu, char *extra)
 511 {
 512         int ret = 0;
 513         struct net_device *dev = ieee->dev;
 514         struct iw_point *encoding = &wrqu->encoding;
 515         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
 516         int i, idx;
 517         int group_key = 0;
 518         const char *alg, *module;
 519         struct ieee80211_crypto_ops *ops;
 520         struct ieee80211_crypt_data **crypt;
 521
 522         struct ieee80211_security sec = {
 523                 .flags = 0,
 524         };
 525         idx = encoding->flags & IW_ENCODE_INDEX;
 526         if (idx) {
 527                 if (idx < 1 || idx > WEP_KEYS)
 528                         return -EINVAL;
 529                 idx--;
 530         } else
 531                 idx = ieee->tx_keyidx;
 532
 533         if (ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) {
 534
 535                 crypt = &ieee->crypt[idx];
 536
 537                 group_key = 1;
 538         } else {
 539                 /* some Cisco APs use idx>0 for unicast in dynamic WEP */
 540                 if (idx != 0 && ext->alg != IW_ENCODE_ALG_WEP)
 541                         return -EINVAL;
 542                 if (ieee->iw_mode == IW_MODE_INFRA)
 543
 544                         crypt = &ieee->crypt[idx];
 545
 546                 else
 547                         return -EINVAL;
 548         }
 549
 550         sec.flags |= SEC_ENABLED;// | SEC_ENCRYPT;
 551         if ((encoding->flags & IW_ENCODE_DISABLED) ||
 552             ext->alg == IW_ENCODE_ALG_NONE) {
 553                 if (*crypt)
 554                         ieee80211_crypt_delayed_deinit(ieee, crypt);
 555
 556                 for (i = 0; i < WEP_KEYS; i++)
 557
 558                         if (ieee->crypt[i] != NULL)
 559
 560                                 break;
 561
 562                 if (i == WEP_KEYS) {
 563                         sec.enabled = 0;
 564                       //  sec.encrypt = 0;
 565                         sec.level = SEC_LEVEL_0;
 566                         sec.flags |= SEC_LEVEL;
 567                 }
 568                 goto done;
 569         }
 570
 571         sec.enabled = 1;
 572     //    sec.encrypt = 1;
 573         switch (ext->alg) {
 574         case IW_ENCODE_ALG_WEP:
 575                 alg = "WEP";
 576                 module = "ieee80211_crypt_wep";
 577                 break;
 578         case IW_ENCODE_ALG_TKIP:
 579                 alg = "TKIP";
 580                 module = "ieee80211_crypt_tkip";
 581                 break;
 582         case IW_ENCODE_ALG_CCMP:
 583                 alg = "CCMP";
 584                 module = "ieee80211_crypt_ccmp";
 585                 break;
 586         default:
 587                 IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
 588                                    dev->name, ext->alg);
 589                 ret = -EINVAL;
 590                 goto done;
 591         }
 592         printk("alg name:%s\n",alg);
 593
 594          ops = ieee80211_get_crypto_ops(alg);
 595         if (ops == NULL) {
 596                 request_module(module);
 597                 ops = ieee80211_get_crypto_ops(alg);
 598         }
 599         if (ops == NULL) {
 600                 IEEE80211_DEBUG_WX("%s: unknown crypto alg %d\n",
 601                                    dev->name, ext->alg);
 602                 printk("========>unknown crypto alg %d\n", ext->alg);
 603                 ret = -EINVAL;
 604                 goto done;
 605         }
 606
 607         if (*crypt == NULL || (*crypt)->ops != ops) {
 608                 struct ieee80211_crypt_data *new_crypt;
 609
 610                 ieee80211_crypt_delayed_deinit(ieee, crypt);
 611
 612                 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
 613                 if (new_crypt == NULL) {
 614                         ret = -ENOMEM;
 615                         goto done;
 616                 }
 617                 new_crypt->ops = ops;
 618                 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
 619                         new_crypt->priv = new_crypt->ops->init(idx);
 620                 if (new_crypt->priv == NULL) {
 621                         kfree(new_crypt);
 622                         ret = -EINVAL;
 623                         goto done;
 624                 }
 625                 *crypt = new_crypt;
 626
 627         }
 628
 629         if (ext->key_len > 0 && (*crypt)->ops->set_key &&
 630             (*crypt)->ops->set_key(ext->key, ext->key_len, ext->rx_seq,
 631                                    (*crypt)->priv) < 0) {
 632                 IEEE80211_DEBUG_WX("%s: key setting failed\n", dev->name);
 633                 printk("key setting failed\n");
 634                 ret = -EINVAL;
 635                 goto done;
 636         }
 637  //skip_host_crypt:
 638         if (ext->ext_flags & IW_ENCODE_EXT_SET_TX_KEY) {
 639                 ieee->tx_keyidx = idx;
 640                 sec.active_key = idx;
 641                 sec.flags |= SEC_ACTIVE_KEY;
 642         }
 643
 644         if (ext->alg != IW_ENCODE_ALG_NONE) {
 645                 //memcpy(sec.keys[idx], ext->key, ext->key_len);
 646                 sec.key_sizes[idx] = ext->key_len;
 647                 sec.flags |= (1 << idx);
 648                 if (ext->alg == IW_ENCODE_ALG_WEP) {
 649                       //  sec.encode_alg[idx] = SEC_ALG_WEP;
 650                         sec.flags |= SEC_LEVEL;
 651                         sec.level = SEC_LEVEL_1;
 652                 } else if (ext->alg == IW_ENCODE_ALG_TKIP) {
 653                       //  sec.encode_alg[idx] = SEC_ALG_TKIP;
 654                         sec.flags |= SEC_LEVEL;
 655                         sec.level = SEC_LEVEL_2;
 656                 } else if (ext->alg == IW_ENCODE_ALG_CCMP) {
 657                        // sec.encode_alg[idx] = SEC_ALG_CCMP;
 658                         sec.flags |= SEC_LEVEL;
 659                         sec.level = SEC_LEVEL_3;
 660                 }
 661                 /* Don't set sec level for group keys. */
 662                 if (group_key)
 663                         sec.flags &= ~SEC_LEVEL;
 664         }
 665 done:
 666         if (ieee->set_security)
 667                 ieee->set_security(ieee->dev, &sec);
 668
 669          if (ieee->reset_on_keychange &&
 670             ieee->iw_mode != IW_MODE_INFRA &&
 671             ieee->reset_port && ieee->reset_port(dev)) {
 672                 IEEE80211_DEBUG_WX("%s: reset_port failed\n", dev->name);
 673                 return -EINVAL;
 674         }
 675         return ret;
 676 }
 677 EXPORT_SYMBOL(ieee80211_wx_set_encode_ext);
 678
 679 int ieee80211_wx_get_encode_ext(struct ieee80211_device *ieee,
 680                                struct iw_request_info *info,
 681                                union iwreq_data *wrqu, char *extra)
 682 {
 683         struct iw_point *encoding = &wrqu->encoding;
 684         struct iw_encode_ext *ext = (struct iw_encode_ext *)extra;
 685         struct ieee80211_crypt_data *crypt;
 686         int idx, max_key_len;
 687
 688         max_key_len = encoding->length - sizeof(*ext);
 689         if (max_key_len < 0)
 690                 return -EINVAL;
 691
 692         idx = encoding->flags & IW_ENCODE_INDEX;
 693         if (idx) {
 694                 if (idx < 1 || idx > WEP_KEYS)
 695                         return -EINVAL;
 696                 idx--;
 697         } else
 698                 idx = ieee->tx_keyidx;
 699
 700         if (!(ext->ext_flags & IW_ENCODE_EXT_GROUP_KEY) &&
 701             ext->alg != IW_ENCODE_ALG_WEP)
 702                 if (idx != 0 || ieee->iw_mode != IW_MODE_INFRA)
 703                         return -EINVAL;
 704
 705         crypt = ieee->crypt[idx];
 706         encoding->flags = idx + 1;
 707         memset(ext, 0, sizeof(*ext));
 708
 709         if (crypt == NULL || crypt->ops == NULL ) {
 710                 ext->alg = IW_ENCODE_ALG_NONE;
 711                 ext->key_len = 0;
 712                 encoding->flags |= IW_ENCODE_DISABLED;
 713         } else {
 714                 if (strcmp(crypt->ops->name, "WEP") == 0 )
 715                         ext->alg = IW_ENCODE_ALG_WEP;
 716                 else if (strcmp(crypt->ops->name, "TKIP"))
 717                         ext->alg = IW_ENCODE_ALG_TKIP;
 718                 else if (strcmp(crypt->ops->name, "CCMP"))
 719                         ext->alg = IW_ENCODE_ALG_CCMP;
 720                 else
 721                         return -EINVAL;
 722                 ext->key_len = crypt->ops->get_key(ext->key, SCM_KEY_LEN, NULL, crypt->priv);
 723                 encoding->flags |= IW_ENCODE_ENABLED;
 724                 if (ext->key_len &&
 725                     (ext->alg == IW_ENCODE_ALG_TKIP ||
 726                      ext->alg == IW_ENCODE_ALG_CCMP))
 727                         ext->ext_flags |= IW_ENCODE_EXT_TX_SEQ_VALID;
 728
 729         }
 730
 731         return 0;
 732 }
 733 EXPORT_SYMBOL(ieee80211_wx_get_encode_ext);
 734
 735 int ieee80211_wx_set_mlme(struct ieee80211_device *ieee,
 736                                struct iw_request_info *info,
 737                                union iwreq_data *wrqu, char *extra)
 738 {
 739         struct iw_mlme *mlme = (struct iw_mlme *) extra;
 740         switch (mlme->cmd) {
 741         case IW_MLME_DEAUTH:
 742         case IW_MLME_DISASSOC:
 743                 ieee80211_disassociate(ieee);
 744                 break;
 745         default:
 746                 return -EOPNOTSUPP;
 747         }
 748         return 0;
 749 }
 750 EXPORT_SYMBOL(ieee80211_wx_set_mlme);
 751
 752 int ieee80211_wx_set_auth(struct ieee80211_device *ieee,
 753                                struct iw_request_info *info,
 754                                struct iw_param *data, char *extra)
 755 {
 756         switch (data->flags & IW_AUTH_INDEX) {
 757         case IW_AUTH_WPA_VERSION:
 758              /*need to support wpa2 here*/
 759                 break;
 760         case IW_AUTH_CIPHER_PAIRWISE:
 761         case IW_AUTH_CIPHER_GROUP:
 762         case IW_AUTH_KEY_MGMT:
 763                 /*
 764  *                  * Host AP driver does not use these parameters and allows
 765  *                                   * wpa_supplicant to control them internally.
 766  *                                                    */
 767                 break;
 768         case IW_AUTH_TKIP_COUNTERMEASURES:
 769                 ieee->tkip_countermeasures = data->value;
 770                 break;
 771         case IW_AUTH_DROP_UNENCRYPTED:
 772                 ieee->drop_unencrypted = data->value;
 773                 break;
 774
 775         case IW_AUTH_80211_AUTH_ALG:
 776                 //printk("======>%s():data->value is %d\n",__func__,data->value);
 777         //      ieee->open_wep = (data->value&IW_AUTH_ALG_OPEN_SYSTEM)?1:0;
 778                 if(data->value & IW_AUTH_ALG_SHARED_KEY){
 779                         ieee->open_wep = 0;
 780                         ieee->auth_mode = 1;
 781                 }
 782                 else if(data->value & IW_AUTH_ALG_OPEN_SYSTEM){
 783                         ieee->open_wep = 1;
 784                         ieee->auth_mode = 0;
 785                 }
 786                 else if(data->value & IW_AUTH_ALG_LEAP){
 787                         ieee->open_wep = 1;
 788                         ieee->auth_mode = 2;
 789                 }
 790                 else
 791                         return -EINVAL;
 792                 break;
 793
 794         case IW_AUTH_WPA_ENABLED:
 795                 ieee->wpa_enabled = (data->value)?1:0;
 796                 break;
 797
 798         case IW_AUTH_RX_UNENCRYPTED_EAPOL:
 799                 ieee->ieee802_1x = data->value;
 800                 break;
 801         case IW_AUTH_PRIVACY_INVOKED:
 802                 ieee->privacy_invoked = data->value;
 803                 break;
 804         default:
 805                 return -EOPNOTSUPP;
 806         }
 807         return 0;
 808 }
 809 EXPORT_SYMBOL(ieee80211_wx_set_auth);
 810
 811 int ieee80211_wx_set_gen_ie(struct ieee80211_device *ieee, u8 *ie, size_t len)
 812 {
 813         u8 *buf;
 814
 815         if (len>MAX_WPA_IE_LEN || (len && ie == NULL))
 816         {
 817         //      printk("return error out, len:%d\n", len);
 818         return -EINVAL;
 819         }
 820
 821
 822         if (len)
 823         {
 824                 if (len != ie[1]+2)
 825                 {
 826                         printk("len:%zu, ie:%d\n", len, ie[1]);
 827                         return -EINVAL;
 828                 }
 829                 buf = kmemdup(ie, len, GFP_KERNEL);
 830                 if (buf == NULL)
 831                         return -ENOMEM;
 832                 kfree(ieee->wpa_ie);
 833                 ieee->wpa_ie = buf;
 834                 ieee->wpa_ie_len = len;
 835         }
 836         else{
 837                 kfree(ieee->wpa_ie);
 838                 ieee->wpa_ie = NULL;
 839                 ieee->wpa_ie_len = 0;
 840         }
 841         return 0;
 842
 843 }
 844 EXPORT_SYMBOL(ieee80211_wx_set_gen_ie);