drivers/staging/rtl8187se/ieee80211/ieee80211_softmac.c

   1 /* IEEE 802.11 SoftMAC layer
   2  * Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
   3  *
   4  * Mostly extracted from the rtl8180-sa2400 driver for the
   5  * in-kernel generic ieee802.11 stack.
   6  *
   7  * Few lines might be stolen from other part of the ieee80211
   8  * stack. Copyright who own it's copyright
   9  *
  10  * WPA code stolen from the ipw2200 driver.
  11  * Copyright who own it's copyright.
  12  *
  13  * released under the GPL
  14  */
  15
  16
  17 #include "ieee80211.h"
  18
  19 #include <linux/random.h>
  20 #include <linux/delay.h>
  21 #include <linux/slab.h>
  22 #include <linux/interrupt.h>
  23 #include <asm/uaccess.h>
  24 #include <linux/etherdevice.h>
  25
  26 #include "dot11d.h"
  27 u8 rsn_authen_cipher_suite[16][4] = {
  28         {0x00,0x0F,0xAC,0x00}, //Use group key, //Reserved
  29         {0x00,0x0F,0xAC,0x01}, //WEP-40         //RSNA default
  30         {0x00,0x0F,0xAC,0x02}, //TKIP           //NONE          //{used just as default}
  31         {0x00,0x0F,0xAC,0x03}, //WRAP-historical
  32         {0x00,0x0F,0xAC,0x04}, //CCMP
  33         {0x00,0x0F,0xAC,0x05}, //WEP-104
  34 };
  35
  36 short ieee80211_is_54g(const struct ieee80211_network *net)
  37 {
  38         return (net->rates_ex_len > 0) || (net->rates_len > 4);
  39 }
  40
  41 short ieee80211_is_shortslot(const struct ieee80211_network *net)
  42 {
  43         return net->capability & WLAN_CAPABILITY_SHORT_SLOT;
  44 }
  45
  46 /* returns the total length needed for placing the RATE MFIE
  47  * tag and the EXTENDED RATE MFIE tag if needed.
  48  * It encludes two bytes per tag for the tag itself and its len
  49  */
  50 unsigned int ieee80211_MFIE_rate_len(struct ieee80211_device *ieee)
  51 {
  52         unsigned int rate_len = 0;
  53
  54         if (ieee->modulation & IEEE80211_CCK_MODULATION)
  55                 rate_len = IEEE80211_CCK_RATE_LEN + 2;
  56
  57         if (ieee->modulation & IEEE80211_OFDM_MODULATION)
  58
  59                 rate_len += IEEE80211_OFDM_RATE_LEN + 2;
  60
  61         return rate_len;
  62 }
  63
  64 /* place the MFIE rate, tag to the memory (double) poised.
  65  * Then it updates the pointer so that
  66  * it points after the new MFIE tag added.
  67  */
  68 void ieee80211_MFIE_Brate(struct ieee80211_device *ieee, u8 **tag_p)
  69 {
  70         u8 *tag = *tag_p;
  71
  72         if (ieee->modulation & IEEE80211_CCK_MODULATION){
  73                 *tag++ = MFIE_TYPE_RATES;
  74                 *tag++ = 4;
  75                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
  76                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
  77                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
  78                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
  79         }
  80
  81         /* We may add an option for custom rates that specific HW might support */
  82         *tag_p = tag;
  83 }
  84
  85 void ieee80211_MFIE_Grate(struct ieee80211_device *ieee, u8 **tag_p)
  86 {
  87         u8 *tag = *tag_p;
  88
  89                 if (ieee->modulation & IEEE80211_OFDM_MODULATION){
  90
  91                 *tag++ = MFIE_TYPE_RATES_EX;
  92                 *tag++ = 8;
  93                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
  94                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
  95                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
  96                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
  97                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
  98                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
  99                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
 100                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB;
 101
 102         }
 103
 104         /* We may add an option for custom rates that specific HW might support */
 105         *tag_p = tag;
 106 }
 107
 108
 109 void ieee80211_WMM_Info(struct ieee80211_device *ieee, u8 **tag_p) {
 110         u8 *tag = *tag_p;
 111
 112         *tag++ = MFIE_TYPE_GENERIC; //0
 113         *tag++ = 7;
 114         *tag++ = 0x00;
 115         *tag++ = 0x50;
 116         *tag++ = 0xf2;
 117         *tag++ = 0x02;//5
 118         *tag++ = 0x00;
 119         *tag++ = 0x01;
 120 #ifdef SUPPORT_USPD
 121         if(ieee->current_network.wmm_info & 0x80) {
 122                 *tag++ = 0x0f|MAX_SP_Len;
 123         } else {
 124                 *tag++ = MAX_SP_Len;
 125         }
 126 #else
 127         *tag++ = MAX_SP_Len;
 128 #endif
 129         *tag_p = tag;
 130 }
 131
 132 void ieee80211_TURBO_Info(struct ieee80211_device *ieee, u8 **tag_p) {
 133         u8 *tag = *tag_p;
 134
 135         *tag++ = MFIE_TYPE_GENERIC; //0
 136         *tag++ = 7;
 137         *tag++ = 0x00;
 138         *tag++ = 0xe0;
 139         *tag++ = 0x4c;
 140         *tag++ = 0x01;//5
 141         *tag++ = 0x02;
 142         *tag++ = 0x11;
 143         *tag++ = 0x00;
 144
 145         *tag_p = tag;
 146         printk(KERN_ALERT "This is enable turbo mode IE process\n");
 147 }
 148
 149 void enqueue_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb)
 150 {
 151         int nh;
 152         nh = (ieee->mgmt_queue_head +1) % MGMT_QUEUE_NUM;
 153
 154 /*
 155  * if the queue is full but we have newer frames then
 156  * just overwrites the oldest.
 157  *
 158  * if (nh == ieee->mgmt_queue_tail)
 159  *              return -1;
 160  */
 161         ieee->mgmt_queue_head = nh;
 162         ieee->mgmt_queue_ring[nh] = skb;
 163
 164         //return 0;
 165 }
 166
 167 struct sk_buff *dequeue_mgmt(struct ieee80211_device *ieee)
 168 {
 169         struct sk_buff *ret;
 170
 171         if(ieee->mgmt_queue_tail == ieee->mgmt_queue_head)
 172                 return NULL;
 173
 174         ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail];
 175
 176         ieee->mgmt_queue_tail =
 177                 (ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM;
 178
 179         return ret;
 180 }
 181
 182 void init_mgmt_queue(struct ieee80211_device *ieee)
 183 {
 184         ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
 185 }
 186
 187
 188 void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl);
 189
 190 inline void softmac_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee)
 191 {
 192         unsigned long flags;
 193         short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
 194         struct ieee80211_hdr_3addr  *header=
 195                 (struct ieee80211_hdr_3addr  *) skb->data;
 196
 197
 198         spin_lock_irqsave(&ieee->lock, flags);
 199
 200         /* called with 2nd param 0, no mgmt lock required */
 201         ieee80211_sta_wakeup(ieee,0);
 202
 203         if(single){
 204                 if(ieee->queue_stop){
 205
 206                         enqueue_mgmt(ieee,skb);
 207                 }else{
 208                         header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
 209
 210                         if (ieee->seq_ctrl[0] == 0xFFF)
 211                                 ieee->seq_ctrl[0] = 0;
 212                         else
 213                                 ieee->seq_ctrl[0]++;
 214
 215                         /* avoid watchdog triggers */
 216                         ieee->dev->trans_start = jiffies;
 217                         ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
 218                 }
 219
 220                 spin_unlock_irqrestore(&ieee->lock, flags);
 221         }else{
 222                 spin_unlock_irqrestore(&ieee->lock, flags);
 223                 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
 224
 225                 header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
 226
 227                 if (ieee->seq_ctrl[0] == 0xFFF)
 228                         ieee->seq_ctrl[0] = 0;
 229                 else
 230                         ieee->seq_ctrl[0]++;
 231
 232                 /* avoid watchdog triggers */
 233                 ieee->dev->trans_start = jiffies;
 234                 ieee->softmac_hard_start_xmit(skb,ieee->dev);
 235
 236                 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
 237         }
 238 }
 239
 240
 241 inline void softmac_ps_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee)
 242 {
 243
 244         short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
 245         struct ieee80211_hdr_3addr  *header =
 246                 (struct ieee80211_hdr_3addr  *) skb->data;
 247
 248
 249         if(single){
 250
 251                 header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
 252
 253                 if (ieee->seq_ctrl[0] == 0xFFF)
 254                         ieee->seq_ctrl[0] = 0;
 255                 else
 256                         ieee->seq_ctrl[0]++;
 257
 258                 /* avoid watchdog triggers */
 259                 ieee->dev->trans_start = jiffies;
 260                 ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
 261
 262         }else{
 263
 264                 header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
 265
 266                 if (ieee->seq_ctrl[0] == 0xFFF)
 267                         ieee->seq_ctrl[0] = 0;
 268                 else
 269                         ieee->seq_ctrl[0]++;
 270
 271                 /* avoid watchdog triggers */
 272                 ieee->dev->trans_start = jiffies;
 273                 ieee->softmac_hard_start_xmit(skb,ieee->dev);
 274
 275         }
 276 //      dev_kfree_skb_any(skb);//edit by thomas
 277 }
 278 //by amy for power save
 279 inline struct sk_buff *ieee80211_disassociate_skb(
 280                                                         struct ieee80211_network *beacon,
 281                                                         struct ieee80211_device *ieee,
 282                                                         u8      asRsn)
 283 {
 284         struct sk_buff *skb;
 285         struct ieee80211_disassoc_frame *disass;
 286
 287         skb = dev_alloc_skb(sizeof(struct ieee80211_disassoc_frame));
 288         if (!skb)
 289                 return NULL;
 290
 291         disass = (struct ieee80211_disassoc_frame *) skb_put(skb,sizeof(struct ieee80211_disassoc_frame));
 292         disass->header.frame_control = cpu_to_le16(IEEE80211_STYPE_DISASSOC);
 293         disass->header.duration_id = 0;
 294
 295         memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN);
 296         memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 297         memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN);
 298
 299         disass->reasoncode = asRsn;
 300         return skb;
 301 }
 302 void
 303 SendDisassociation(
 304         struct ieee80211_device *ieee,
 305         u8*                     asSta,
 306         u8                      asRsn
 307 )
 308 {
 309         struct ieee80211_network *beacon = &ieee->current_network;
 310         struct sk_buff *skb;
 311         skb = ieee80211_disassociate_skb(beacon,ieee,asRsn);
 312         if (skb){
 313                 softmac_mgmt_xmit(skb, ieee);
 314                 //dev_kfree_skb_any(skb);//edit by thomas
 315         }
 316 }
 317
 318 //by amy for power save
 319 inline struct sk_buff *ieee80211_probe_req(struct ieee80211_device *ieee)
 320 {
 321         unsigned int len,rate_len;
 322         u8 *tag;
 323         struct sk_buff *skb;
 324         struct ieee80211_probe_request *req;
 325
 326         len = ieee->current_network.ssid_len;
 327
 328         rate_len = ieee80211_MFIE_rate_len(ieee);
 329
 330         skb = dev_alloc_skb(sizeof(struct ieee80211_probe_request) +
 331                             2 + len + rate_len);
 332         if (!skb)
 333                 return NULL;
 334
 335         req = (struct ieee80211_probe_request *) skb_put(skb,sizeof(struct ieee80211_probe_request));
 336         req->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
 337         req->header.duration_id = 0; //FIXME: is this OK ?
 338
 339         memset(req->header.addr1, 0xff, ETH_ALEN);
 340         memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 341         memset(req->header.addr3, 0xff, ETH_ALEN);
 342
 343         tag = (u8 *) skb_put(skb,len+2+rate_len);
 344
 345         *tag++ = MFIE_TYPE_SSID;
 346         *tag++ = len;
 347         memcpy(tag, ieee->current_network.ssid, len);
 348         tag += len;
 349         ieee80211_MFIE_Brate(ieee,&tag);
 350         ieee80211_MFIE_Grate(ieee,&tag);
 351
 352         return skb;
 353 }
 354
 355 struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee);
 356
 357 void ext_ieee80211_send_beacon_wq(struct ieee80211_device *ieee)
 358 {
 359         struct sk_buff *skb;
 360
 361         //unsigned long flags;
 362
 363         skb = ieee80211_get_beacon_(ieee);
 364
 365         if (skb){
 366                 softmac_mgmt_xmit(skb, ieee);
 367                 ieee->softmac_stats.tx_beacons++;
 368                 dev_kfree_skb_any(skb);//edit by thomas
 369         }
 370
 371
 372         //printk(KERN_WARNING "[1] beacon sending!\n");
 373         ieee->beacon_timer.expires = jiffies +
 374                 (MSECS( ieee->current_network.beacon_interval -5));
 375
 376         //spin_lock_irqsave(&ieee->beacon_lock,flags);
 377         if(ieee->beacon_txing)
 378                 add_timer(&ieee->beacon_timer);
 379         //spin_unlock_irqrestore(&ieee->beacon_lock,flags);
 380 }
 381
 382 void ieee80211_send_beacon(struct ieee80211_device *ieee)
 383 {
 384         struct sk_buff *skb;
 385
 386         //unsigned long flags;
 387
 388         skb = ieee80211_get_beacon_(ieee);
 389
 390         if (skb){
 391                 softmac_mgmt_xmit(skb, ieee);
 392                 ieee->softmac_stats.tx_beacons++;
 393                 dev_kfree_skb_any(skb);//edit by thomas
 394         }
 395
 396         //printk(KERN_WARNING "[1] beacon sending!\n");
 397         ieee->beacon_timer.expires = jiffies +
 398                 (MSECS( ieee->current_network.beacon_interval -5));
 399
 400         //spin_lock_irqsave(&ieee->beacon_lock,flags);
 401         if(ieee->beacon_txing)
 402                 add_timer(&ieee->beacon_timer);
 403         //spin_unlock_irqrestore(&ieee->beacon_lock,flags);
 404 }
 405
 406
 407 void ieee80211_send_beacon_cb(unsigned long _ieee)
 408 {
 409         struct ieee80211_device *ieee =
 410                 (struct ieee80211_device *) _ieee;
 411         unsigned long flags;
 412
 413         spin_lock_irqsave(&ieee->beacon_lock, flags);
 414         ieee80211_send_beacon(ieee);
 415         spin_unlock_irqrestore(&ieee->beacon_lock, flags);
 416 }
 417
 418 void ieee80211_send_probe(struct ieee80211_device *ieee)
 419 {
 420         struct sk_buff *skb;
 421
 422         skb = ieee80211_probe_req(ieee);
 423         if (skb){
 424                 softmac_mgmt_xmit(skb, ieee);
 425                 ieee->softmac_stats.tx_probe_rq++;
 426                 //dev_kfree_skb_any(skb);//edit by thomas
 427         }
 428 }
 429
 430 void ieee80211_send_probe_requests(struct ieee80211_device *ieee)
 431 {
 432         if (ieee->active_scan && (ieee->softmac_features & IEEE_SOFTMAC_PROBERQ)){
 433                 ieee80211_send_probe(ieee);
 434                 ieee80211_send_probe(ieee);
 435         }
 436 }
 437
 438 /* this performs syncro scan blocking the caller until all channels
 439  * in the allowed channel map has been checked.
 440  */
 441 void ieee80211_softmac_scan_syncro(struct ieee80211_device *ieee)
 442 {
 443         short ch = 0;
 444         u8 channel_map[MAX_CHANNEL_NUMBER+1];
 445         memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
 446         down(&ieee->scan_sem);
 447 //      printk("==================> Sync scan\n");
 448
 449         while(1)
 450         {
 451
 452                 do{
 453                         ch++;
 454                         if (ch > MAX_CHANNEL_NUMBER)
 455                                 goto out; /* scan completed */
 456
 457                 }while(!channel_map[ch]);
 458                 /* this function can be called in two situations
 459                  * 1- We have switched to ad-hoc mode and we are
 460                  *    performing a complete syncro scan before conclude
 461                  *    there are no interesting cell and to create a
 462                  *    new one. In this case the link state is
 463                  *    IEEE80211_NOLINK until we found an interesting cell.
 464                  *    If so the ieee8021_new_net, called by the RX path
 465                  *    will set the state to IEEE80211_LINKED, so we stop
 466                  *    scanning
 467                  * 2- We are linked and the root uses run iwlist scan.
 468                  *    So we switch to IEEE80211_LINKED_SCANNING to remember
 469                  *    that we are still logically linked (not interested in
 470                  *    new network events, despite for updating the net list,
 471                  *    but we are temporarily 'unlinked' as the driver shall
 472                  *    not filter RX frames and the channel is changing.
 473                  * So the only situation in witch are interested is to check
 474                  * if the state become LINKED because of the #1 situation
 475                  */
 476
 477                 if (ieee->state == IEEE80211_LINKED)
 478                         goto out;
 479
 480                 ieee->set_chan(ieee->dev, ch);
 481 //              printk("=====>channel=%d   ",ch);
 482                 if(channel_map[ch] == 1)
 483                 {
 484 //                      printk("====send probe request\n");
 485                         ieee80211_send_probe_requests(ieee);
 486                 }
 487                 /* this prevent excessive time wait when we
 488                  * need to wait for a syncro scan to end..
 489                  */
 490                 if (ieee->sync_scan_hurryup)
 491                         goto out;
 492
 493
 494                 msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME);
 495
 496         }
 497 out:
 498         ieee->sync_scan_hurryup = 0;
 499         up(&ieee->scan_sem);
 500         if(IS_DOT11D_ENABLE(ieee))
 501                 DOT11D_ScanComplete(ieee);
 502 }
 503
 504 void ieee80211_softmac_ips_scan_syncro(struct ieee80211_device *ieee)
 505 {
 506         int ch;
 507         unsigned int watch_dog = 0;
 508         u8 channel_map[MAX_CHANNEL_NUMBER+1];
 509         memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
 510         down(&ieee->scan_sem);
 511         ch = ieee->current_network.channel;
 512 //              if(ieee->sync_scan_hurryup)
 513 //      {
 514
 515 //              printk("stop scan sync\n");
 516 //              goto out;
 517 //      }
 518 //      printk("=======hh===============>ips scan\n");
 519         while(1)
 520         {
 521                 /* this function can be called in two situations
 522                  * 1- We have switched to ad-hoc mode and we are
 523                  *    performing a complete syncro scan before conclude
 524                  *    there are no interesting cell and to create a
 525                  *    new one. In this case the link state is
 526                  *    IEEE80211_NOLINK until we found an interesting cell.
 527                  *    If so the ieee8021_new_net, called by the RX path
 528                  *    will set the state to IEEE80211_LINKED, so we stop
 529                  *    scanning
 530                  * 2- We are linked and the root uses run iwlist scan.
 531                  *    So we switch to IEEE80211_LINKED_SCANNING to remember
 532                  *    that we are still logically linked (not interested in
 533                  *    new network events, despite for updating the net list,
 534                  *    but we are temporarily 'unlinked' as the driver shall
 535                  *    not filter RX frames and the channel is changing.
 536                  * So the only situation in witch are interested is to check
 537                  * if the state become LINKED because of the #1 situation
 538                  */
 539                 if (ieee->state == IEEE80211_LINKED)
 540                 {
 541                         goto out;
 542                 }
 543                 if(channel_map[ieee->current_network.channel] > 0)
 544                 {
 545                         ieee->set_chan(ieee->dev, ieee->current_network.channel);
 546 //                      printk("======>channel=%d  ",ieee->current_network.channel);
 547                 }
 548                 if(channel_map[ieee->current_network.channel] == 1)
 549                 {
 550 //                      printk("====send probe request\n");
 551                         ieee80211_send_probe_requests(ieee);
 552                 }
 553                 /* this prevent excessive time wait when we
 554                  * need to wait for a syncro scan to end..
 555                  */
 556 //                if (ieee->sync_scan_hurryup)
 557 //                        goto out;
 558
 559                 msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME);
 560
 561                 do{
 562                         if (watch_dog++ >= MAX_CHANNEL_NUMBER)
 563                 //      if (++watch_dog >= 15);//MAX_CHANNEL_NUMBER)  //YJ,modified,080630
 564                                 goto out; /* scan completed */
 565
 566                         ieee->current_network.channel = (ieee->current_network.channel + 1)%MAX_CHANNEL_NUMBER;
 567                 }while(!channel_map[ieee->current_network.channel]);
 568         }
 569 out:
 570         //ieee->sync_scan_hurryup = 0;
 571         //ieee->set_chan(ieee->dev, ch);
 572         //ieee->current_network.channel = ch;
 573         ieee->actscanning = false;
 574         up(&ieee->scan_sem);
 575         if(IS_DOT11D_ENABLE(ieee))
 576                 DOT11D_ScanComplete(ieee);
 577 }
 578
 579 void ieee80211_softmac_scan_wq(struct work_struct *work)
 580 {
 581         struct delayed_work *dwork = to_delayed_work(work);
 582         struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, softmac_scan_wq);
 583         static short watchdog = 0;
 584         u8 channel_map[MAX_CHANNEL_NUMBER+1];
 585         memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
 586 //      printk("ieee80211_softmac_scan_wq ENABLE_IPS\n");
 587 //      printk("in %s\n",__func__);
 588         down(&ieee->scan_sem);
 589
 590         do{
 591                 ieee->current_network.channel =
 592                         (ieee->current_network.channel + 1) % MAX_CHANNEL_NUMBER;
 593                 if (watchdog++ > MAX_CHANNEL_NUMBER)
 594                                 goto out; /* no good chans */
 595
 596         }while(!channel_map[ieee->current_network.channel]);
 597
 598         //printk("current_network.channel:%d\n", ieee->current_network.channel);
 599         if (ieee->scanning == 0 )
 600         {
 601                 printk("error out, scanning = 0\n");
 602                 goto out;
 603         }
 604         ieee->set_chan(ieee->dev, ieee->current_network.channel);
 605         if(channel_map[ieee->current_network.channel] == 1)
 606                 ieee80211_send_probe_requests(ieee);
 607
 608         queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, IEEE80211_SOFTMAC_SCAN_TIME);
 609         up(&ieee->scan_sem);
 610         return;
 611 out:
 612         ieee->actscanning = false;
 613         watchdog = 0;
 614         ieee->scanning = 0;
 615         up(&ieee->scan_sem);
 616
 617         if(IS_DOT11D_ENABLE(ieee))
 618                 DOT11D_ScanComplete(ieee);
 619         return;
 620 }
 621
 622 void ieee80211_beacons_start(struct ieee80211_device *ieee)
 623 {
 624         unsigned long flags;
 625
 626         spin_lock_irqsave(&ieee->beacon_lock,flags);
 627
 628         ieee->beacon_txing = 1;
 629         ieee80211_send_beacon(ieee);
 630
 631         spin_unlock_irqrestore(&ieee->beacon_lock,flags);
 632 }
 633
 634 void ieee80211_beacons_stop(struct ieee80211_device *ieee)
 635 {
 636         unsigned long flags;
 637
 638         spin_lock_irqsave(&ieee->beacon_lock,flags);
 639
 640         ieee->beacon_txing = 0;
 641         del_timer_sync(&ieee->beacon_timer);
 642
 643         spin_unlock_irqrestore(&ieee->beacon_lock,flags);
 644
 645 }
 646
 647
 648 void ieee80211_stop_send_beacons(struct ieee80211_device *ieee)
 649 {
 650         if(ieee->stop_send_beacons)
 651                 ieee->stop_send_beacons(ieee->dev);
 652         if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
 653                 ieee80211_beacons_stop(ieee);
 654 }
 655
 656
 657 void ieee80211_start_send_beacons(struct ieee80211_device *ieee)
 658 {
 659         if(ieee->start_send_beacons)
 660                 ieee->start_send_beacons(ieee->dev);
 661         if(ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
 662                 ieee80211_beacons_start(ieee);
 663 }
 664
 665
 666 void ieee80211_softmac_stop_scan(struct ieee80211_device *ieee)
 667 {
 668 //      unsigned long flags;
 669
 670         //ieee->sync_scan_hurryup = 1;
 671
 672         down(&ieee->scan_sem);
 673 //      spin_lock_irqsave(&ieee->lock, flags);
 674
 675         if (ieee->scanning == 1){
 676                 ieee->scanning = 0;
 677                 //del_timer_sync(&ieee->scan_timer);
 678                 cancel_delayed_work(&ieee->softmac_scan_wq);
 679         }
 680
 681 //      spin_unlock_irqrestore(&ieee->lock, flags);
 682         up(&ieee->scan_sem);
 683 }
 684
 685 void ieee80211_stop_scan(struct ieee80211_device *ieee)
 686 {
 687         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN)
 688                 ieee80211_softmac_stop_scan(ieee);
 689         else
 690                 ieee->stop_scan(ieee->dev);
 691 }
 692
 693 /* called with ieee->lock held */
 694 void ieee80211_rtl_start_scan(struct ieee80211_device *ieee)
 695 {
 696         if(IS_DOT11D_ENABLE(ieee) )
 697         {
 698                 if(IS_COUNTRY_IE_VALID(ieee))
 699                 {
 700                         RESET_CIE_WATCHDOG(ieee);
 701                 }
 702         }
 703         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
 704                 if (ieee->scanning == 0)
 705                 {
 706                         ieee->scanning = 1;
 707                         //ieee80211_softmac_scan(ieee);
 708                 //      queue_work(ieee->wq, &ieee->softmac_scan_wq);
 709                 //care this,1203,2007,by lawrence
 710 #if 1
 711                         queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq,0);
 712 #endif
 713                 }
 714         }else
 715                 ieee->start_scan(ieee->dev);
 716
 717 }
 718
 719 /* called with wx_sem held */
 720 void ieee80211_start_scan_syncro(struct ieee80211_device *ieee)
 721 {
 722         if(IS_DOT11D_ENABLE(ieee) )
 723         {
 724                 if(IS_COUNTRY_IE_VALID(ieee))
 725                 {
 726                         RESET_CIE_WATCHDOG(ieee);
 727                 }
 728         }
 729         ieee->sync_scan_hurryup = 0;
 730
 731         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN)
 732                 ieee80211_softmac_scan_syncro(ieee);
 733         else
 734                 ieee->scan_syncro(ieee->dev);
 735
 736 }
 737
 738 inline struct sk_buff *ieee80211_authentication_req(struct ieee80211_network *beacon,
 739         struct ieee80211_device *ieee, int challengelen)
 740 {
 741         struct sk_buff *skb;
 742         struct ieee80211_authentication *auth;
 743
 744         skb = dev_alloc_skb(sizeof(struct ieee80211_authentication) + challengelen);
 745
 746         if (!skb) return NULL;
 747
 748         auth = (struct ieee80211_authentication *)
 749                 skb_put(skb, sizeof(struct ieee80211_authentication));
 750
 751         auth->header.frame_ctl = IEEE80211_STYPE_AUTH;
 752         if (challengelen) auth->header.frame_ctl |= IEEE80211_FCTL_WEP;
 753
 754         auth->header.duration_id = 0x013a; //FIXME
 755
 756         memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN);
 757         memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 758         memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN);
 759
 760         auth->algorithm = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
 761
 762         auth->transaction = cpu_to_le16(ieee->associate_seq);
 763         ieee->associate_seq++;
 764
 765         auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
 766
 767         return skb;
 768
 769 }
 770
 771 static struct sk_buff* ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *dest)
 772 {
 773         u8 *tag;
 774         int beacon_size;
 775         struct ieee80211_probe_response *beacon_buf;
 776         struct sk_buff *skb;
 777         int encrypt;
 778         int atim_len,erp_len;
 779         struct ieee80211_crypt_data* crypt;
 780
 781         char *ssid = ieee->current_network.ssid;
 782         int ssid_len = ieee->current_network.ssid_len;
 783         int rate_len = ieee->current_network.rates_len+2;
 784         int rate_ex_len = ieee->current_network.rates_ex_len;
 785         int wpa_ie_len = ieee->wpa_ie_len;
 786         if(rate_ex_len > 0) rate_ex_len+=2;
 787
 788         if(ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
 789                 atim_len = 4;
 790         else
 791                 atim_len = 0;
 792
 793         if(ieee80211_is_54g(&ieee->current_network))
 794                 erp_len = 3;
 795         else
 796                 erp_len = 0;
 797
 798         beacon_size = sizeof(struct ieee80211_probe_response)+
 799                 ssid_len
 800                 +3 //channel
 801                 +rate_len
 802                 +rate_ex_len
 803                 +atim_len
 804                 +wpa_ie_len
 805                 +erp_len;
 806
 807         skb = dev_alloc_skb(beacon_size);
 808
 809         if (!skb)
 810                 return NULL;
 811
 812         beacon_buf = (struct ieee80211_probe_response*) skb_put(skb, beacon_size);
 813
 814         memcpy (beacon_buf->header.addr1, dest,ETH_ALEN);
 815         memcpy (beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 816         memcpy (beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN);
 817
 818         beacon_buf->header.duration_id = 0; //FIXME
 819         beacon_buf->beacon_interval =
 820                 cpu_to_le16(ieee->current_network.beacon_interval);
 821         beacon_buf->capability =
 822                 cpu_to_le16(ieee->current_network.capability & WLAN_CAPABILITY_IBSS);
 823
 824         if(ieee->short_slot && (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_SLOT))
 825                 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
 826
 827         crypt = ieee->crypt[ieee->tx_keyidx];
 828
 829         encrypt = ieee->host_encrypt && crypt && crypt->ops &&
 830                 ((0 == strcmp(crypt->ops->name, "WEP")) || wpa_ie_len);
 831
 832         if (encrypt)
 833                 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
 834
 835
 836         beacon_buf->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_RESP);
 837
 838         beacon_buf->info_element.id = MFIE_TYPE_SSID;
 839         beacon_buf->info_element.len = ssid_len;
 840
 841         tag = (u8*) beacon_buf->info_element.data;
 842
 843         memcpy(tag, ssid, ssid_len);
 844
 845         tag += ssid_len;
 846
 847         *(tag++) = MFIE_TYPE_RATES;
 848         *(tag++) = rate_len-2;
 849         memcpy(tag,ieee->current_network.rates,rate_len-2);
 850         tag+=rate_len-2;
 851
 852         *(tag++) = MFIE_TYPE_DS_SET;
 853         *(tag++) = 1;
 854         *(tag++) = ieee->current_network.channel;
 855
 856         if(atim_len){
 857                 *(tag++) = MFIE_TYPE_IBSS_SET;
 858                 *(tag++) = 2;
 859                 *((u16*)(tag)) = cpu_to_le16(ieee->current_network.atim_window);
 860                 tag+=2;
 861         }
 862
 863         if(erp_len){
 864                 *(tag++) = MFIE_TYPE_ERP;
 865                 *(tag++) = 1;
 866                 *(tag++) = 0;
 867         }
 868
 869         if(rate_ex_len){
 870                 *(tag++) = MFIE_TYPE_RATES_EX;
 871                 *(tag++) = rate_ex_len-2;
 872                 memcpy(tag,ieee->current_network.rates_ex,rate_ex_len-2);
 873                 tag+=rate_ex_len-2;
 874         }
 875
 876         if (wpa_ie_len)
 877         {
 878                 if (ieee->iw_mode == IW_MODE_ADHOC)
 879                 {//as Windows will set pairwise key same as the group key which is not allowed in Linux, so set this for IOT issue. WB 2008.07.07
 880                         memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
 881                 }
 882
 883                 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
 884         }
 885
 886         skb->dev = ieee->dev;
 887         return skb;
 888 }
 889
 890 struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee, u8 *dest)
 891 {
 892         struct sk_buff *skb;
 893         u8* tag;
 894
 895         struct ieee80211_crypt_data* crypt;
 896         struct ieee80211_assoc_response_frame *assoc;
 897         short encrypt;
 898
 899         unsigned int rate_len = ieee80211_MFIE_rate_len(ieee);
 900         int len = sizeof(struct ieee80211_assoc_response_frame) + rate_len;
 901
 902         skb = dev_alloc_skb(len);
 903
 904         if (!skb)
 905                 return NULL;
 906
 907         assoc = (struct ieee80211_assoc_response_frame *)
 908                 skb_put(skb,sizeof(struct ieee80211_assoc_response_frame));
 909
 910         assoc->header.frame_control = cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP);
 911         memcpy(assoc->header.addr1, dest,ETH_ALEN);
 912         memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
 913         memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 914         assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
 915                 WLAN_CAPABILITY_BSS : WLAN_CAPABILITY_IBSS);
 916
 917
 918         if(ieee->short_slot)
 919                 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
 920
 921         if (ieee->host_encrypt)
 922                 crypt = ieee->crypt[ieee->tx_keyidx];
 923         else crypt = NULL;
 924
 925         encrypt = ( crypt && crypt->ops);
 926
 927         if (encrypt)
 928                 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
 929
 930         assoc->status = 0;
 931         assoc->aid = cpu_to_le16(ieee->assoc_id);
 932         if (ieee->assoc_id == 0x2007) ieee->assoc_id=0;
 933         else ieee->assoc_id++;
 934
 935         tag = (u8*) skb_put(skb, rate_len);
 936
 937         ieee80211_MFIE_Brate(ieee, &tag);
 938         ieee80211_MFIE_Grate(ieee, &tag);
 939
 940         return skb;
 941 }
 942
 943 struct sk_buff* ieee80211_auth_resp(struct ieee80211_device *ieee,int status, u8 *dest)
 944 {
 945         struct sk_buff *skb;
 946         struct ieee80211_authentication *auth;
 947
 948         skb = dev_alloc_skb(sizeof(struct ieee80211_authentication)+1);
 949
 950         if (!skb)
 951                 return NULL;
 952
 953         skb->len = sizeof(struct ieee80211_authentication);
 954
 955         auth = (struct ieee80211_authentication *)skb->data;
 956
 957         auth->status = cpu_to_le16(status);
 958         auth->transaction = cpu_to_le16(2);
 959         auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
 960
 961         memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
 962         memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 963         memcpy(auth->header.addr1, dest, ETH_ALEN);
 964         auth->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_AUTH);
 965         return skb;
 966
 967
 968 }
 969
 970 struct sk_buff* ieee80211_null_func(struct ieee80211_device *ieee,short pwr)
 971 {
 972         struct sk_buff *skb;
 973         struct ieee80211_hdr_3addr* hdr;
 974
 975         skb = dev_alloc_skb(sizeof(struct ieee80211_hdr_3addr));
 976
 977         if (!skb)
 978                 return NULL;
 979
 980         hdr = (struct ieee80211_hdr_3addr*)skb_put(skb,sizeof(struct ieee80211_hdr_3addr));
 981
 982         memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN);
 983         memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN);
 984         memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN);
 985
 986         hdr->frame_control = cpu_to_le16(IEEE80211_FTYPE_DATA |
 987                 IEEE80211_STYPE_NULLFUNC | IEEE80211_FCTL_TODS |
 988                 (pwr ? IEEE80211_FCTL_PM:0));
 989
 990         return skb;
 991
 992
 993 }
 994
 995
 996 void ieee80211_resp_to_assoc_rq(struct ieee80211_device *ieee, u8* dest)
 997 {
 998         struct sk_buff *buf = ieee80211_assoc_resp(ieee, dest);
 999
1000         if (buf){
1001                 softmac_mgmt_xmit(buf, ieee);
1002                 dev_kfree_skb_any(buf);//edit by thomas
1003         }
1004 }
1005
1006
1007 void ieee80211_resp_to_auth(struct ieee80211_device *ieee, int s, u8* dest)
1008 {
1009         struct sk_buff *buf = ieee80211_auth_resp(ieee, s, dest);
1010
1011         if (buf){
1012                 softmac_mgmt_xmit(buf, ieee);
1013                 dev_kfree_skb_any(buf);//edit by thomas
1014         }
1015 }
1016
1017
1018 void ieee80211_resp_to_probe(struct ieee80211_device *ieee, u8 *dest)
1019 {
1020
1021         struct sk_buff *buf = ieee80211_probe_resp(ieee, dest);
1022
1023         if (buf) {
1024                 softmac_mgmt_xmit(buf, ieee);
1025                 dev_kfree_skb_any(buf);//edit by thomas
1026         }
1027 }
1028
1029
1030 inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beacon,struct ieee80211_device *ieee)
1031 {
1032         struct sk_buff *skb;
1033         //unsigned long flags;
1034
1035         struct ieee80211_assoc_request_frame *hdr;
1036         u8 *tag;
1037         //short info_addr = 0;
1038         //int i;
1039         //u16 suite_count = 0;
1040         //u8 suit_select = 0;
1041         unsigned int wpa_len = beacon->wpa_ie_len;
1042         //struct net_device *dev = ieee->dev;
1043         //union iwreq_data wrqu;
1044         //u8 *buff;
1045         //u8 *p;
1046 #if 1
1047         // for testing purpose
1048         unsigned int rsn_len = beacon->rsn_ie_len;
1049 #else
1050         unsigned int rsn_len = beacon->rsn_ie_len - 4;
1051 #endif
1052         unsigned int rate_len = ieee80211_MFIE_rate_len(ieee);
1053         unsigned int wmm_info_len = beacon->QoS_Enable?9:0;
1054         unsigned int turbo_info_len = beacon->Turbo_Enable?9:0;
1055
1056         u8  encry_proto = ieee->wpax_type_notify & 0xff;
1057         //u8  pairwise_type = (ieee->wpax_type_notify >> 8) & 0xff;
1058         //u8  authen_type = (ieee->wpax_type_notify >> 16) & 0xff;
1059
1060         int len = 0;
1061
1062         //[0] Notify type of encryption: WPA/WPA2
1063         //[1] pair wise type
1064         //[2] authen type
1065         if(ieee->wpax_type_set) {
1066                 if (IEEE_PROTO_WPA == encry_proto) {
1067                         rsn_len = 0;
1068                 } else if (IEEE_PROTO_RSN == encry_proto) {
1069                         wpa_len = 0;
1070                 }
1071         }
1072         len = sizeof(struct ieee80211_assoc_request_frame)+
1073                 + beacon->ssid_len//essid tagged val
1074                 + rate_len//rates tagged val
1075                 + wpa_len
1076                 + rsn_len
1077                 + wmm_info_len
1078                 + turbo_info_len;
1079
1080         skb = dev_alloc_skb(len);
1081
1082         if (!skb)
1083                 return NULL;
1084
1085         hdr = (struct ieee80211_assoc_request_frame *)
1086                 skb_put(skb, sizeof(struct ieee80211_assoc_request_frame));
1087
1088
1089         hdr->header.frame_control = IEEE80211_STYPE_ASSOC_REQ;
1090         hdr->header.duration_id= 37; //FIXME
1091         memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN);
1092         memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1093         memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN);
1094         memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);//for HW security, John
1095
1096         hdr->capability = cpu_to_le16(WLAN_CAPABILITY_BSS);
1097         if (beacon->capability & WLAN_CAPABILITY_PRIVACY )
1098                 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1099         if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1100                 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1101
1102         if(ieee->short_slot)
1103                 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
1104
1105         hdr->listen_interval = 0xa; //FIXME
1106
1107         hdr->info_element.id = MFIE_TYPE_SSID;
1108
1109         hdr->info_element.len = beacon->ssid_len;
1110         tag = skb_put(skb, beacon->ssid_len);
1111         memcpy(tag, beacon->ssid, beacon->ssid_len);
1112
1113         tag = skb_put(skb, rate_len);
1114
1115         ieee80211_MFIE_Brate(ieee, &tag);
1116         ieee80211_MFIE_Grate(ieee, &tag);
1117
1118         //add rsn==0 condition for ap's mix security mode(wpa+wpa2), john2007.8.9
1119         //choose AES encryption as default algorithm while using mixed mode
1120
1121         tag = skb_put(skb,ieee->wpa_ie_len);
1122         memcpy(tag,ieee->wpa_ie,ieee->wpa_ie_len);
1123
1124         tag = skb_put(skb,wmm_info_len);
1125         if(wmm_info_len) {
1126           ieee80211_WMM_Info(ieee, &tag);
1127         }
1128         tag = skb_put(skb,turbo_info_len);
1129         if(turbo_info_len) {
1130                 ieee80211_TURBO_Info(ieee, &tag);
1131         }
1132
1133         return skb;
1134 }
1135
1136 void ieee80211_associate_abort(struct ieee80211_device *ieee)
1137 {
1138
1139         unsigned long flags;
1140         spin_lock_irqsave(&ieee->lock, flags);
1141
1142         ieee->associate_seq++;
1143
1144         /* don't scan, and avoid to have the RX path possibly
1145          * try again to associate. Even do not react to AUTH or
1146          * ASSOC response. Just wait for the retry wq to be scheduled.
1147          * Here we will check if there are good nets to associate
1148          * with, so we retry or just get back to NO_LINK and scanning
1149          */
1150         if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING){
1151                 IEEE80211_DEBUG_MGMT("Authentication failed\n");
1152                 ieee->softmac_stats.no_auth_rs++;
1153         }else{
1154                 IEEE80211_DEBUG_MGMT("Association failed\n");
1155                 ieee->softmac_stats.no_ass_rs++;
1156         }
1157
1158         ieee->state = IEEE80211_ASSOCIATING_RETRY;
1159
1160         queue_delayed_work(ieee->wq, &ieee->associate_retry_wq,IEEE80211_SOFTMAC_ASSOC_RETRY_TIME);
1161
1162         spin_unlock_irqrestore(&ieee->lock, flags);
1163 }
1164
1165 void ieee80211_associate_abort_cb(unsigned long dev)
1166 {
1167         ieee80211_associate_abort((struct ieee80211_device *) dev);
1168 }
1169
1170
1171 void ieee80211_associate_step1(struct ieee80211_device *ieee)
1172 {
1173         struct ieee80211_network *beacon = &ieee->current_network;
1174         struct sk_buff *skb;
1175
1176         IEEE80211_DEBUG_MGMT("Stopping scan\n");
1177         ieee->softmac_stats.tx_auth_rq++;
1178         skb=ieee80211_authentication_req(beacon, ieee, 0);
1179         if (!skb){
1180
1181                 ieee80211_associate_abort(ieee);
1182         }
1183         else{
1184                 ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATING ;
1185                 IEEE80211_DEBUG_MGMT("Sending authentication request\n");
1186                 //printk("---Sending authentication request\n");
1187                 softmac_mgmt_xmit(skb, ieee);
1188                 //BUGON when you try to add_timer twice, using mod_timer may be better, john0709
1189                 if(!timer_pending(&ieee->associate_timer)){
1190                         ieee->associate_timer.expires = jiffies + (HZ / 2);
1191                         add_timer(&ieee->associate_timer);
1192                 }
1193                 //If call dev_kfree_skb_any,a warning will ocur....
1194                 //KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1708)
1195                 //So ... 1204 by lawrence.
1196                 //printk("\nIn %s,line %d call kfree skb.",__func__,__LINE__);
1197                 //dev_kfree_skb_any(skb);//edit by thomas
1198         }
1199 }
1200
1201 void ieee80211_rtl_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen)
1202 {
1203         u8 *c;
1204         struct sk_buff *skb;
1205         struct ieee80211_network *beacon = &ieee->current_network;
1206 //      int hlen = sizeof(struct ieee80211_authentication);
1207         del_timer_sync(&ieee->associate_timer);
1208         ieee->associate_seq++;
1209         ieee->softmac_stats.tx_auth_rq++;
1210
1211         skb = ieee80211_authentication_req(beacon, ieee, chlen+2);
1212         if (!skb)
1213                 ieee80211_associate_abort(ieee);
1214         else{
1215                 c = skb_put(skb, chlen+2);
1216                 *(c++) = MFIE_TYPE_CHALLENGE;
1217                 *(c++) = chlen;
1218                 memcpy(c, challenge, chlen);
1219
1220                 IEEE80211_DEBUG_MGMT("Sending authentication challenge response\n");
1221
1222                 ieee80211_encrypt_fragment(ieee, skb, sizeof(struct ieee80211_hdr_3addr  ));
1223
1224                 softmac_mgmt_xmit(skb, ieee);
1225                 if (!timer_pending(&ieee->associate_timer)){
1226                 //printk("=========>add timer again, to crash\n");
1227                 ieee->associate_timer.expires = jiffies + (HZ / 2);
1228                 add_timer(&ieee->associate_timer);
1229                 }
1230                 dev_kfree_skb_any(skb);//edit by thomas
1231         }
1232         kfree(challenge);
1233 }
1234
1235 void ieee80211_associate_step2(struct ieee80211_device *ieee)
1236 {
1237         struct sk_buff* skb;
1238         struct ieee80211_network *beacon = &ieee->current_network;
1239
1240         del_timer_sync(&ieee->associate_timer);
1241
1242         IEEE80211_DEBUG_MGMT("Sending association request\n");
1243         ieee->softmac_stats.tx_ass_rq++;
1244         skb=ieee80211_association_req(beacon, ieee);
1245         if (!skb)
1246                 ieee80211_associate_abort(ieee);
1247         else{
1248                 softmac_mgmt_xmit(skb, ieee);
1249                 if (!timer_pending(&ieee->associate_timer)){
1250                 ieee->associate_timer.expires = jiffies + (HZ / 2);
1251                 add_timer(&ieee->associate_timer);
1252                 }
1253                 //dev_kfree_skb_any(skb);//edit by thomas
1254         }
1255 }
1256
1257 void ieee80211_associate_complete_wq(struct work_struct *work)
1258 {
1259         struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_complete_wq);
1260
1261         printk(KERN_INFO "Associated successfully\n");
1262         if(ieee80211_is_54g(&ieee->current_network) &&
1263                 (ieee->modulation & IEEE80211_OFDM_MODULATION)){
1264
1265                 ieee->rate = 540;
1266                 printk(KERN_INFO"Using G rates\n");
1267         }else{
1268                 ieee->rate = 110;
1269                 printk(KERN_INFO"Using B rates\n");
1270         }
1271         ieee->link_change(ieee->dev);
1272         notify_wx_assoc_event(ieee);
1273         if (ieee->data_hard_resume)
1274                 ieee->data_hard_resume(ieee->dev);
1275         netif_carrier_on(ieee->dev);
1276 }
1277
1278 void ieee80211_associate_complete(struct ieee80211_device *ieee)
1279 {
1280         int i;
1281         del_timer_sync(&ieee->associate_timer);
1282
1283         for(i = 0; i < 6; i++) {
1284           //ieee->seq_ctrl[i] = 0;
1285         }
1286         ieee->state = IEEE80211_LINKED;
1287         IEEE80211_DEBUG_MGMT("Successfully associated\n");
1288
1289         queue_work(ieee->wq, &ieee->associate_complete_wq);
1290 }
1291
1292 void ieee80211_associate_procedure_wq(struct work_struct *work)
1293 {
1294         struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_procedure_wq);
1295
1296         ieee->sync_scan_hurryup = 1;
1297         down(&ieee->wx_sem);
1298
1299         if (ieee->data_hard_stop)
1300                 ieee->data_hard_stop(ieee->dev);
1301
1302         ieee80211_stop_scan(ieee);
1303         ieee->set_chan(ieee->dev, ieee->current_network.channel);
1304
1305         ieee->associate_seq = 1;
1306         ieee80211_associate_step1(ieee);
1307
1308         up(&ieee->wx_sem);
1309 }
1310
1311 inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee80211_network *net)
1312 {
1313         u8 tmp_ssid[IW_ESSID_MAX_SIZE+1];
1314         int tmp_ssid_len = 0;
1315
1316         short apset,ssidset,ssidbroad,apmatch,ssidmatch;
1317
1318         /* we are interested in new new only if we are not associated
1319          * and we are not associating / authenticating
1320          */
1321         if (ieee->state != IEEE80211_NOLINK)
1322                 return;
1323
1324         if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability & WLAN_CAPABILITY_BSS))
1325                 return;
1326
1327         if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability & WLAN_CAPABILITY_IBSS))
1328                 return;
1329
1330
1331         if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC){
1332                 /* if the user specified the AP MAC, we need also the essid
1333                  * This could be obtained by beacons or, if the network does not
1334                  * broadcast it, it can be put manually.
1335                  */
1336                 apset = ieee->wap_set;//(memcmp(ieee->current_network.bssid, zero,ETH_ALEN)!=0 );
1337                 ssidset = ieee->ssid_set;//ieee->current_network.ssid[0] != '\0';
1338                 ssidbroad =  !(net->ssid_len == 0 || net->ssid[0]== '\0');
1339                 apmatch = (memcmp(ieee->current_network.bssid, net->bssid, ETH_ALEN)==0);
1340
1341                 if(ieee->current_network.ssid_len != net->ssid_len)
1342                         ssidmatch = 0;
1343                 else
1344                         ssidmatch = (0==strncmp(ieee->current_network.ssid, net->ssid, net->ssid_len));
1345
1346                 //printk("cur: %s, %d, net:%s, %d\n", ieee->current_network.ssid, ieee->current_network.ssid_len, net->ssid, net->ssid_len);
1347                 //printk("apset=%d apmatch=%d ssidset=%d ssidbroad=%d ssidmatch=%d\n",apset,apmatch,ssidset,ssidbroad,ssidmatch);
1348
1349                 if (    /* if the user set the AP check if match.
1350                          * if the network does not broadcast essid we check the user supplied ANY essid
1351                          * if the network does broadcast and the user does not set essid it is OK
1352                          * if the network does broadcast and the user did set essid chech if essid match
1353                          */
1354                                 ( apset && apmatch &&
1355                                   ((ssidset && ssidbroad && ssidmatch) || (ssidbroad && !ssidset) || (!ssidbroad && ssidset)) ) ||
1356                                 /* if the ap is not set, check that the user set the bssid
1357                                  * and the network does broadcast and that those two bssid matches
1358                                  */
1359                                 (!apset && ssidset && ssidbroad && ssidmatch)
1360                    ){
1361
1362
1363                         /* if the essid is hidden replace it with the
1364                          * essid provided by the user.
1365                          */
1366                         if (!ssidbroad){
1367                                 strncpy(tmp_ssid, ieee->current_network.ssid, IW_ESSID_MAX_SIZE);
1368                                 tmp_ssid_len = ieee->current_network.ssid_len;
1369                         }
1370                         memcpy(&ieee->current_network, net, sizeof(struct ieee80211_network));
1371
1372                         if (!ssidbroad){
1373                                 strncpy(ieee->current_network.ssid, tmp_ssid, IW_ESSID_MAX_SIZE);
1374                                 ieee->current_network.ssid_len = tmp_ssid_len;
1375                         }
1376                         printk(KERN_INFO"Linking with %s: channel is %d\n",ieee->current_network.ssid,ieee->current_network.channel);
1377
1378                         if (ieee->iw_mode == IW_MODE_INFRA){
1379                                 ieee->state = IEEE80211_ASSOCIATING;
1380                                 ieee->beinretry = false;
1381                                 queue_work(ieee->wq, &ieee->associate_procedure_wq);
1382                         }else{
1383                                 if(ieee80211_is_54g(&ieee->current_network) &&
1384                                                 (ieee->modulation & IEEE80211_OFDM_MODULATION)){
1385                                         ieee->rate = 540;
1386                                         printk(KERN_INFO"Using G rates\n");
1387                                 }else{
1388                                         ieee->rate = 110;
1389                                         printk(KERN_INFO"Using B rates\n");
1390                                 }
1391                                 ieee->state = IEEE80211_LINKED;
1392                                 ieee->beinretry = false;
1393                         }
1394
1395                 }
1396         }
1397
1398 }
1399
1400 void ieee80211_softmac_check_all_nets(struct ieee80211_device *ieee)
1401 {
1402         unsigned long flags;
1403         struct ieee80211_network *target;
1404
1405         spin_lock_irqsave(&ieee->lock, flags);
1406         list_for_each_entry(target, &ieee->network_list, list) {
1407
1408                 /* if the state become different that NOLINK means
1409                  * we had found what we are searching for
1410                  */
1411
1412                 if (ieee->state != IEEE80211_NOLINK)
1413                         break;
1414
1415                 if (ieee->scan_age == 0 || time_after(target->last_scanned + ieee->scan_age, jiffies))
1416                         ieee80211_softmac_new_net(ieee, target);
1417         }
1418
1419         spin_unlock_irqrestore(&ieee->lock, flags);
1420
1421 }
1422
1423
1424 static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
1425 {
1426         struct ieee80211_authentication *a;
1427         u8 *t;
1428         if (skb->len <  (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
1429                 IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n",skb->len);
1430                 return 0xcafe;
1431         }
1432         *challenge = NULL;
1433         a = (struct ieee80211_authentication*) skb->data;
1434         if(skb->len > (sizeof(struct ieee80211_authentication) +3)){
1435                 t = skb->data + sizeof(struct ieee80211_authentication);
1436
1437                 if(*(t++) == MFIE_TYPE_CHALLENGE){
1438                         *chlen = *(t++);
1439                         *challenge = kmemdup(t, *chlen, GFP_ATOMIC);
1440                         if (!*challenge)
1441                                 return -ENOMEM;
1442                 }
1443         }
1444
1445         return cpu_to_le16(a->status);
1446
1447 }
1448
1449
1450 int auth_rq_parse(struct sk_buff *skb,u8* dest)
1451 {
1452         struct ieee80211_authentication *a;
1453
1454         if (skb->len <  (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
1455                 IEEE80211_DEBUG_MGMT("invalid len in auth request: %d\n",skb->len);
1456                 return -1;
1457         }
1458         a = (struct ieee80211_authentication*) skb->data;
1459
1460         memcpy(dest,a->header.addr2, ETH_ALEN);
1461
1462         if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1463                 return  WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1464
1465         return WLAN_STATUS_SUCCESS;
1466 }
1467
1468 static short probe_rq_parse(struct ieee80211_device *ieee, struct sk_buff *skb, u8 *src)
1469 {
1470         u8 *tag;
1471         u8 *skbend;
1472         u8 *ssid=NULL;
1473         u8 ssidlen = 0;
1474
1475         struct ieee80211_hdr_3addr   *header =
1476                 (struct ieee80211_hdr_3addr   *) skb->data;
1477
1478         if (skb->len < sizeof (struct ieee80211_hdr_3addr  ))
1479                 return -1; /* corrupted */
1480
1481         memcpy(src,header->addr2, ETH_ALEN);
1482
1483         skbend = (u8*)skb->data + skb->len;
1484
1485         tag = skb->data + sizeof (struct ieee80211_hdr_3addr  );
1486
1487         while (tag+1 < skbend){
1488                 if (*tag == 0){
1489                         ssid = tag+2;
1490                         ssidlen = *(tag+1);
1491                         break;
1492                 }
1493                 tag++; /* point to the len field */
1494                 tag = tag + *(tag); /* point to the last data byte of the tag */
1495                 tag++; /* point to the next tag */
1496         }
1497
1498         //IEEE80211DMESG("Card MAC address is "MACSTR, MAC2STR(src));
1499         if (ssidlen == 0) return 1;
1500
1501         if (!ssid) return 1; /* ssid not found in tagged param */
1502         return (!strncmp(ssid, ieee->current_network.ssid, ssidlen));
1503
1504 }
1505
1506 int assoc_rq_parse(struct sk_buff *skb,u8* dest)
1507 {
1508         struct ieee80211_assoc_request_frame *a;
1509
1510         if (skb->len < (sizeof(struct ieee80211_assoc_request_frame) -
1511                 sizeof(struct ieee80211_info_element))) {
1512
1513                 IEEE80211_DEBUG_MGMT("invalid len in auth request:%d \n", skb->len);
1514                 return -1;
1515         }
1516
1517         a = (struct ieee80211_assoc_request_frame*) skb->data;
1518
1519         memcpy(dest,a->header.addr2,ETH_ALEN);
1520
1521         return 0;
1522 }
1523
1524 static inline u16 assoc_parse(struct sk_buff *skb, int *aid)
1525 {
1526         struct ieee80211_assoc_response_frame *a;
1527         if (skb->len <  sizeof(struct ieee80211_assoc_response_frame)){
1528                 IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
1529                 return 0xcafe;
1530         }
1531
1532         a = (struct ieee80211_assoc_response_frame*) skb->data;
1533         *aid = le16_to_cpu(a->aid) & 0x3fff;
1534         return le16_to_cpu(a->status);
1535 }
1536
1537 static inline void
1538 ieee80211_rx_probe_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
1539 {
1540         u8 dest[ETH_ALEN];
1541
1542         //IEEE80211DMESG("Rx probe");
1543         ieee->softmac_stats.rx_probe_rq++;
1544         //DMESG("Dest is "MACSTR, MAC2STR(dest));
1545         if (probe_rq_parse(ieee, skb, dest)){
1546                 //IEEE80211DMESG("Was for me!");
1547                 ieee->softmac_stats.tx_probe_rs++;
1548                 ieee80211_resp_to_probe(ieee, dest);
1549         }
1550 }
1551
1552 inline void
1553 ieee80211_rx_auth_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
1554 {
1555         u8 dest[ETH_ALEN];
1556         int status;
1557         //IEEE80211DMESG("Rx probe");
1558         ieee->softmac_stats.rx_auth_rq++;
1559
1560         status = auth_rq_parse(skb, dest);
1561         if (status != -1) {
1562                 ieee80211_resp_to_auth(ieee, status, dest);
1563         }
1564         //DMESG("Dest is "MACSTR, MAC2STR(dest));
1565
1566 }
1567
1568  inline void
1569 ieee80211_rx_assoc_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
1570 {
1571
1572         u8 dest[ETH_ALEN];
1573         //unsigned long flags;
1574
1575         ieee->softmac_stats.rx_ass_rq++;
1576         if (assoc_rq_parse(skb,dest) != -1){
1577                 ieee80211_resp_to_assoc_rq(ieee, dest);
1578         }
1579
1580         printk(KERN_INFO"New client associated: %pM\n", dest);
1581 }
1582
1583
1584
1585 void ieee80211_sta_ps_send_null_frame(struct ieee80211_device *ieee, short pwr)
1586 {
1587
1588         struct sk_buff *buf = ieee80211_null_func(ieee, pwr);
1589
1590         if (buf)
1591                 softmac_ps_mgmt_xmit(buf, ieee);
1592
1593 }
1594
1595
1596 short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h, u32 *time_l)
1597 {
1598         int timeout = 0;
1599
1600         u8 dtim;
1601         /*if(ieee->ps == IEEE80211_PS_DISABLED ||
1602                 ieee->iw_mode != IW_MODE_INFRA ||
1603                 ieee->state != IEEE80211_LINKED)
1604
1605                 return 0;
1606         */
1607         dtim = ieee->current_network.dtim_data;
1608         //printk("DTIM\n");
1609
1610         if(!(dtim & IEEE80211_DTIM_VALID))
1611                 return 0;
1612         else
1613                 timeout = ieee->current_network.beacon_interval;
1614
1615         //printk("VALID\n");
1616         ieee->current_network.dtim_data = IEEE80211_DTIM_INVALID;
1617
1618         if(dtim & ((IEEE80211_DTIM_UCAST | IEEE80211_DTIM_MBCAST)& ieee->ps))
1619                 return 2;
1620
1621         if(!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout)))
1622                 return 0;
1623
1624         if(!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout)))
1625                 return 0;
1626
1627         if((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE ) &&
1628                 (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
1629                 return 0;
1630
1631         if(time_l){
1632                 *time_l = ieee->current_network.last_dtim_sta_time[0]
1633                         + MSECS((ieee->current_network.beacon_interval));
1634                         //* ieee->current_network.dtim_period));
1635                         //printk("beacon_interval:%x, dtim_period:%x, totol to Msecs:%x, HZ:%x\n", ieee->current_network.beacon_interval, ieee->current_network.dtim_period, MSECS(((ieee->current_network.beacon_interval * ieee->current_network.dtim_period))), HZ);
1636         }
1637
1638         if(time_h){
1639                 *time_h = ieee->current_network.last_dtim_sta_time[1];
1640                 if(time_l && *time_l < ieee->current_network.last_dtim_sta_time[0])
1641                         *time_h += 1;
1642         }
1643
1644         return 1;
1645
1646
1647 }
1648
1649 inline void ieee80211_sta_ps(struct ieee80211_device *ieee)
1650 {
1651
1652         u32 th,tl;
1653         short sleep;
1654
1655         unsigned long flags,flags2;
1656
1657         spin_lock_irqsave(&ieee->lock, flags);
1658
1659         if((ieee->ps == IEEE80211_PS_DISABLED ||
1660
1661                 ieee->iw_mode != IW_MODE_INFRA ||
1662                 ieee->state != IEEE80211_LINKED)){
1663
1664                 //#warning CHECK_LOCK_HERE
1665                 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1666
1667                 ieee80211_sta_wakeup(ieee, 1);
1668
1669                 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1670         }
1671
1672         sleep = ieee80211_sta_ps_sleep(ieee,&th, &tl);
1673 //      printk("===>%s,%d[2 wake, 1 sleep, 0 do nothing], ieee->sta_sleep = %d\n",__func__, sleep,ieee->sta_sleep);
1674         /* 2 wake, 1 sleep, 0 do nothing */
1675         if(sleep == 0)
1676                 goto out;
1677
1678         if(sleep == 1){
1679
1680                 if(ieee->sta_sleep == 1)
1681                         ieee->enter_sleep_state(ieee->dev,th,tl);
1682
1683                 else if(ieee->sta_sleep == 0){
1684         //              printk("send null 1\n");
1685                         spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1686
1687                         if(ieee->ps_is_queue_empty(ieee->dev)){
1688
1689
1690                                 ieee->sta_sleep = 2;
1691
1692                                 ieee->ps_request_tx_ack(ieee->dev);
1693
1694                                 ieee80211_sta_ps_send_null_frame(ieee,1);
1695
1696                                 ieee->ps_th = th;
1697                                 ieee->ps_tl = tl;
1698                         }
1699                         spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1700
1701                 }
1702
1703
1704         }else if(sleep == 2){
1705 //#warning CHECK_LOCK_HERE
1706                 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1707
1708         //      printk("send wakeup packet\n");
1709                 ieee80211_sta_wakeup(ieee,1);
1710
1711                 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1712         }
1713
1714 out:
1715         spin_unlock_irqrestore(&ieee->lock, flags);
1716
1717 }
1718
1719 void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl)
1720 {
1721         if(ieee->sta_sleep == 0){
1722                 if(nl){
1723                 //      printk("Warning: driver is probably failing to report TX ps error\n");
1724                         ieee->ps_request_tx_ack(ieee->dev);
1725                         ieee80211_sta_ps_send_null_frame(ieee, 0);
1726                 }
1727                 return;
1728
1729         }
1730
1731         if(ieee->sta_sleep == 1)
1732                 ieee->sta_wake_up(ieee->dev);
1733
1734         ieee->sta_sleep = 0;
1735
1736         if(nl){
1737                 ieee->ps_request_tx_ack(ieee->dev);
1738                 ieee80211_sta_ps_send_null_frame(ieee, 0);
1739         }
1740 }
1741
1742 void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success)
1743 {
1744         unsigned long flags,flags2;
1745
1746         spin_lock_irqsave(&ieee->lock, flags);
1747         if(ieee->sta_sleep == 2){
1748                 /* Null frame with PS bit set */
1749                 if(success){
1750
1751                 //      printk("==================> %s::enter sleep state\n",__func__);
1752                         ieee->sta_sleep = 1;
1753                         ieee->enter_sleep_state(ieee->dev,ieee->ps_th,ieee->ps_tl);
1754                 }
1755                 /* if the card report not success we can't be sure the AP
1756                  * has not RXed so we can't assume the AP believe us awake
1757                  */
1758         }
1759         /* 21112005 - tx again null without PS bit if lost */
1760         else {
1761
1762                 if((ieee->sta_sleep == 0) && !success){
1763                         spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1764                         ieee80211_sta_ps_send_null_frame(ieee, 0);
1765                         spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1766                 }
1767         }
1768         spin_unlock_irqrestore(&ieee->lock, flags);
1769 }
1770
1771 inline int
1772 ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
1773                         struct ieee80211_rx_stats *rx_stats, u16 type,
1774                         u16 stype)
1775 {
1776         struct ieee80211_hdr_3addr *header = (struct ieee80211_hdr_3addr *) skb->data;
1777         u16 errcode;
1778         u8* challenge=NULL;
1779         int chlen=0;
1780         int aid=0;
1781         struct ieee80211_assoc_response_frame *assoc_resp;
1782         struct ieee80211_info_element *info_element;
1783
1784         if(!ieee->proto_started)
1785                 return 0;
1786
1787         if(ieee->sta_sleep || (ieee->ps != IEEE80211_PS_DISABLED &&
1788                 ieee->iw_mode == IW_MODE_INFRA &&
1789                 ieee->state == IEEE80211_LINKED))
1790
1791                 tasklet_schedule(&ieee->ps_task);
1792
1793         if (WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_PROBE_RESP &&
1794                 WLAN_FC_GET_STYPE(header->frame_control) != IEEE80211_STYPE_BEACON)
1795                 ieee->last_rx_ps_time = jiffies;
1796
1797         switch (WLAN_FC_GET_STYPE(header->frame_control)) {
1798
1799                 case IEEE80211_STYPE_ASSOC_RESP:
1800                 case IEEE80211_STYPE_REASSOC_RESP:
1801
1802                         IEEE80211_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
1803                                         WLAN_FC_GET_STYPE(header->frame_ctl));
1804                         if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
1805                                 ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATED &&
1806                                 ieee->iw_mode == IW_MODE_INFRA){
1807                                 if (0 == (errcode=assoc_parse(skb, &aid))){
1808                                         u16 left;
1809
1810                                         ieee->state=IEEE80211_LINKED;
1811                                         ieee->assoc_id = aid;
1812                                         ieee->softmac_stats.rx_ass_ok++;
1813
1814                                         //printk(KERN_WARNING "nic_type = %s", (rx_stats->nic_type == 1)?"rtl8187":"rtl8187B");
1815                                         if(1 == rx_stats->nic_type) //card type is 8187
1816                                         {
1817                                                 goto associate_complete;
1818                                         }
1819                                         assoc_resp = (struct ieee80211_assoc_response_frame*)skb->data;
1820                                         info_element =  &assoc_resp->info_element;
1821                                         left = skb->len - ((void*)info_element - (void*)assoc_resp);
1822
1823                                         while (left >= sizeof(struct ieee80211_info_element_hdr)) {
1824                                                 if (sizeof(struct ieee80211_info_element_hdr) + info_element->len > left) {
1825                                                         printk(KERN_WARNING "[re]associate response error!");
1826                                                         return 1;
1827                                                 }
1828                                                 switch (info_element->id) {
1829                                                   case MFIE_TYPE_GENERIC:
1830                                                          IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n", info_element->len);
1831                                                         if (info_element->len >= 8  &&
1832                                                             info_element->data[0] == 0x00 &&
1833                                                             info_element->data[1] == 0x50 &&
1834                                                             info_element->data[2] == 0xf2 &&
1835                                                             info_element->data[3] == 0x02 &&
1836                                                             info_element->data[4] == 0x01) {
1837                                                             // Not care about version at present.
1838                                                             //WMM Parameter Element
1839                                                             memcpy(ieee->current_network.wmm_param,(u8*)(info_element->data\
1840                                                                                     + 8),(info_element->len - 8));
1841
1842                                                             if (((ieee->current_network.wmm_info^info_element->data[6])& \
1843                                                                                     0x0f)||(!ieee->init_wmmparam_flag)) {
1844                                                               // refresh parameter element for current network
1845                                                               // update the register parameter for hardware
1846                                                               ieee->init_wmmparam_flag = 1;
1847                                                               queue_work(ieee->wq, &ieee->wmm_param_update_wq);
1848
1849                                                             }
1850                                                             //update info_element for current network
1851                                                             ieee->current_network.wmm_info  = info_element->data[6];
1852                                                         }
1853                                                         break;
1854                                                   default:
1855                                                         //nothing to do at present!!!
1856                                                         break;
1857                                                 }
1858
1859                                                 left -= sizeof(struct ieee80211_info_element_hdr) +
1860                                                         info_element->len;
1861                                                 info_element = (struct ieee80211_info_element *)
1862                                                         &info_element->data[info_element->len];
1863                                         }
1864                                         if(!ieee->init_wmmparam_flag) //legacy AP, reset the AC_xx_param register
1865                                         {
1866                                                 queue_work(ieee->wq,&ieee->wmm_param_update_wq);
1867                                                 ieee->init_wmmparam_flag = 1;//indicate AC_xx_param upated since last associate
1868                                         }
1869 associate_complete:
1870                                         ieee80211_associate_complete(ieee);
1871                                 }else{
1872                                         ieee->softmac_stats.rx_ass_err++;
1873                                         IEEE80211_DEBUG_MGMT(
1874                                                 "Association response status code 0x%x\n",
1875                                                 errcode);
1876                                         ieee80211_associate_abort(ieee);
1877                                 }
1878                         }
1879                         break;
1880
1881                 case IEEE80211_STYPE_ASSOC_REQ:
1882                 case IEEE80211_STYPE_REASSOC_REQ:
1883
1884                         if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
1885                                 ieee->iw_mode == IW_MODE_MASTER)
1886
1887                                 ieee80211_rx_assoc_rq(ieee, skb);
1888                         break;
1889
1890                 case IEEE80211_STYPE_AUTH:
1891
1892                         if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE){
1893                                 if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING &&
1894                                 ieee->iw_mode == IW_MODE_INFRA){
1895
1896                                                 IEEE80211_DEBUG_MGMT("Received authentication response");
1897
1898                                                 if (0 == (errcode=auth_parse(skb, &challenge, &chlen))){
1899                                                         if(ieee->open_wep || !challenge){
1900                                                                 ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATED;
1901                                                                 ieee->softmac_stats.rx_auth_rs_ok++;
1902
1903                                                                 ieee80211_associate_step2(ieee);
1904                                                         }else{
1905                                                                 ieee80211_rtl_auth_challenge(ieee, challenge, chlen);
1906                                                         }
1907                                                 }else{
1908                                                         ieee->softmac_stats.rx_auth_rs_err++;
1909                                                         IEEE80211_DEBUG_MGMT("Authentication response status code 0x%x",errcode);
1910                                                         ieee80211_associate_abort(ieee);
1911                                                 }
1912
1913                                         }else if (ieee->iw_mode == IW_MODE_MASTER){
1914                                                 ieee80211_rx_auth_rq(ieee, skb);
1915                                         }
1916                                 }
1917                         break;
1918
1919                 case IEEE80211_STYPE_PROBE_REQ:
1920
1921                         if ((ieee->softmac_features & IEEE_SOFTMAC_PROBERS) &&
1922                                 ((ieee->iw_mode == IW_MODE_ADHOC ||
1923                                 ieee->iw_mode == IW_MODE_MASTER) &&
1924                                 ieee->state == IEEE80211_LINKED))
1925
1926                                 ieee80211_rx_probe_rq(ieee, skb);
1927                         break;
1928
1929                 case IEEE80211_STYPE_DISASSOC:
1930                 case IEEE80211_STYPE_DEAUTH:
1931                         /* FIXME for now repeat all the association procedure
1932                         * both for disassociation and deauthentication
1933                         */
1934                         if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
1935                                 (ieee->state == IEEE80211_LINKED) &&
1936                                 (ieee->iw_mode == IW_MODE_INFRA) &&
1937                                 (!memcmp(header->addr2,ieee->current_network.bssid,ETH_ALEN))){
1938                                 ieee->state = IEEE80211_ASSOCIATING;
1939                                 ieee->softmac_stats.reassoc++;
1940
1941                                 //notify_wx_assoc_event(ieee);  //YJ,del,080828, do not notify os here
1942                                 queue_work(ieee->wq, &ieee->associate_procedure_wq);
1943                         }
1944
1945                         break;
1946
1947                 default:
1948                         return -1;
1949                         break;
1950         }
1951
1952         //dev_kfree_skb_any(skb);
1953         return 0;
1954 }
1955
1956
1957
1958 /* following are for a simpler TX queue management.
1959  * Instead of using netif_[stop/wake]_queue the driver
1960  * will uses these two function (plus a reset one), that
1961  * will internally uses the kernel netif_* and takes
1962  * care of the ieee802.11 fragmentation.
1963  * So the driver receives a fragment per time and might
1964  * call the stop function when it want without take care
1965  * to have enough room to TX an entire packet.
1966  * This might be useful if each fragment need it's own
1967  * descriptor, thus just keep a total free memory > than
1968  * the max fragmentation threshold is not enough.. If the
1969  * ieee802.11 stack passed a TXB struct then you needed
1970  * to keep N free descriptors where
1971  * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
1972  * In this way you need just one and the 802.11 stack
1973  * will take care of buffering fragments and pass them to
1974  * to the driver later, when it wakes the queue.
1975  */
1976
1977 void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *ieee)
1978 {
1979
1980
1981         unsigned long flags;
1982         int  i;
1983
1984         spin_lock_irqsave(&ieee->lock,flags);
1985
1986         /* called with 2nd parm 0, no tx mgmt lock required */
1987         ieee80211_sta_wakeup(ieee,0);
1988
1989         for(i = 0; i < txb->nr_frags; i++) {
1990
1991                 if (ieee->queue_stop){
1992                         ieee->tx_pending.txb = txb;
1993                         ieee->tx_pending.frag = i;
1994                         goto exit;
1995                 }else{
1996                         ieee->softmac_data_hard_start_xmit(
1997                                 txb->fragments[i],
1998                                 ieee->dev,ieee->rate);
1999                                 //(i+1)<txb->nr_frags);
2000                         ieee->stats.tx_packets++;
2001                         ieee->stats.tx_bytes += txb->fragments[i]->len;
2002                         ieee->dev->trans_start = jiffies;
2003                 }
2004         }
2005
2006         ieee80211_txb_free(txb);
2007
2008         exit:
2009         spin_unlock_irqrestore(&ieee->lock,flags);
2010
2011 }
2012
2013 /* called with ieee->lock acquired */
2014 void ieee80211_resume_tx(struct ieee80211_device *ieee)
2015 {
2016         int i;
2017         for(i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags; i++) {
2018
2019                 if (ieee->queue_stop){
2020                         ieee->tx_pending.frag = i;
2021                         return;
2022                 }else{
2023
2024                         ieee->softmac_data_hard_start_xmit(
2025                                 ieee->tx_pending.txb->fragments[i],
2026                                 ieee->dev,ieee->rate);
2027                                 //(i+1)<ieee->tx_pending.txb->nr_frags);
2028                         ieee->stats.tx_packets++;
2029                         ieee->dev->trans_start = jiffies;
2030                 }
2031         }
2032
2033
2034         ieee80211_txb_free(ieee->tx_pending.txb);
2035         ieee->tx_pending.txb = NULL;
2036 }
2037
2038
2039 void ieee80211_reset_queue(struct ieee80211_device *ieee)
2040 {
2041         unsigned long flags;
2042
2043         spin_lock_irqsave(&ieee->lock,flags);
2044         init_mgmt_queue(ieee);
2045         if (ieee->tx_pending.txb){
2046                 ieee80211_txb_free(ieee->tx_pending.txb);
2047                 ieee->tx_pending.txb = NULL;
2048         }
2049         ieee->queue_stop = 0;
2050         spin_unlock_irqrestore(&ieee->lock,flags);
2051
2052 }
2053
2054 void ieee80211_rtl_wake_queue(struct ieee80211_device *ieee)
2055 {
2056
2057         unsigned long flags;
2058         struct sk_buff *skb;
2059         struct ieee80211_hdr_3addr  *header;
2060
2061         spin_lock_irqsave(&ieee->lock,flags);
2062         if (! ieee->queue_stop) goto exit;
2063
2064         ieee->queue_stop = 0;
2065
2066         if(ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE){
2067                 while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))){
2068
2069                         header = (struct ieee80211_hdr_3addr  *) skb->data;
2070
2071                         header->seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2072
2073                         if (ieee->seq_ctrl[0] == 0xFFF)
2074                                 ieee->seq_ctrl[0] = 0;
2075                         else
2076                                 ieee->seq_ctrl[0]++;
2077
2078                         //printk(KERN_ALERT "ieee80211_wake_queue \n");
2079                         ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
2080                         dev_kfree_skb_any(skb);//edit by thomas
2081                 }
2082         }
2083         if (!ieee->queue_stop && ieee->tx_pending.txb)
2084                 ieee80211_resume_tx(ieee);
2085
2086         if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)){
2087                 ieee->softmac_stats.swtxawake++;
2088                 netif_wake_queue(ieee->dev);
2089         }
2090
2091 exit :
2092         spin_unlock_irqrestore(&ieee->lock,flags);
2093 }
2094
2095
2096 void ieee80211_rtl_stop_queue(struct ieee80211_device *ieee)
2097 {
2098         //unsigned long flags;
2099         //spin_lock_irqsave(&ieee->lock,flags);
2100
2101         if (! netif_queue_stopped(ieee->dev)){
2102                 netif_stop_queue(ieee->dev);
2103                 ieee->softmac_stats.swtxstop++;
2104         }
2105         ieee->queue_stop = 1;
2106         //spin_unlock_irqrestore(&ieee->lock,flags);
2107
2108 }
2109
2110
2111 inline void ieee80211_randomize_cell(struct ieee80211_device *ieee)
2112 {
2113
2114         random_ether_addr(ieee->current_network.bssid);
2115 }
2116
2117 /* called in user context only */
2118 void ieee80211_start_master_bss(struct ieee80211_device *ieee)
2119 {
2120         ieee->assoc_id = 1;
2121
2122         if (ieee->current_network.ssid_len == 0){
2123                 strncpy(ieee->current_network.ssid,
2124                         IEEE80211_DEFAULT_TX_ESSID,
2125                         IW_ESSID_MAX_SIZE);
2126
2127                 ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
2128                 ieee->ssid_set = 1;
2129         }
2130
2131         memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN);
2132
2133         ieee->set_chan(ieee->dev, ieee->current_network.channel);
2134         ieee->state = IEEE80211_LINKED;
2135         ieee->link_change(ieee->dev);
2136         notify_wx_assoc_event(ieee);
2137
2138         if (ieee->data_hard_resume)
2139                 ieee->data_hard_resume(ieee->dev);
2140
2141         netif_carrier_on(ieee->dev);
2142 }
2143
2144 void ieee80211_start_monitor_mode(struct ieee80211_device *ieee)
2145 {
2146         if(ieee->raw_tx){
2147
2148                 if (ieee->data_hard_resume)
2149                         ieee->data_hard_resume(ieee->dev);
2150
2151                 netif_carrier_on(ieee->dev);
2152         }
2153 }
2154
2155 void ieee80211_start_ibss_wq(struct work_struct *work)
2156 {
2157         struct delayed_work *dwork = to_delayed_work(work);
2158         struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, start_ibss_wq);
2159
2160         /* iwconfig mode ad-hoc will schedule this and return
2161          * on the other hand this will block further iwconfig SET
2162          * operations because of the wx_sem hold.
2163          * Anyway some most set operations set a flag to speed-up
2164          * (abort) this wq (when syncro scanning) before sleeping
2165          * on the semaphore
2166          */
2167
2168         down(&ieee->wx_sem);
2169
2170
2171         if (ieee->current_network.ssid_len == 0){
2172                 strcpy(ieee->current_network.ssid,IEEE80211_DEFAULT_TX_ESSID);
2173                 ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
2174                 ieee->ssid_set = 1;
2175         }
2176
2177         /* check if we have this cell in our network list */
2178         ieee80211_softmac_check_all_nets(ieee);
2179
2180         if(ieee->state == IEEE80211_NOLINK)
2181                 ieee->current_network.channel = 10;
2182         /* if not then the state is not linked. Maybe the user switched to
2183          * ad-hoc mode just after being in monitor mode, or just after
2184          * being very few time in managed mode (so the card have had no
2185          * time to scan all the chans..) or we have just run up the iface
2186          * after setting ad-hoc mode. So we have to give another try..
2187          * Here, in ibss mode, should be safe to do this without extra care
2188          * (in bss mode we had to make sure no-one tried to associate when
2189          * we had just checked the ieee->state and we was going to start the
2190          * scan) because in ibss mode the ieee80211_new_net function, when
2191          * finds a good net, just set the ieee->state to IEEE80211_LINKED,
2192          * so, at worst, we waste a bit of time to initiate an unneeded syncro
2193          * scan, that will stop at the first round because it sees the state
2194          * associated.
2195          */
2196         if (ieee->state == IEEE80211_NOLINK)
2197                 ieee80211_start_scan_syncro(ieee);
2198
2199         /* the network definitively is not here.. create a new cell */
2200         if (ieee->state == IEEE80211_NOLINK){
2201                 printk("creating new IBSS cell\n");
2202                 if(!ieee->wap_set)
2203                         ieee80211_randomize_cell(ieee);
2204
2205                 if(ieee->modulation & IEEE80211_CCK_MODULATION){
2206
2207                         ieee->current_network.rates_len = 4;
2208
2209                         ieee->current_network.rates[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
2210                         ieee->current_network.rates[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
2211                         ieee->current_network.rates[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
2212                         ieee->current_network.rates[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
2213
2214                 }else
2215                         ieee->current_network.rates_len = 0;
2216
2217                 if(ieee->modulation & IEEE80211_OFDM_MODULATION){
2218                         ieee->current_network.rates_ex_len = 8;
2219
2220                         ieee->current_network.rates_ex[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
2221                         ieee->current_network.rates_ex[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
2222                         ieee->current_network.rates_ex[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
2223                         ieee->current_network.rates_ex[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
2224                         ieee->current_network.rates_ex[4] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
2225                         ieee->current_network.rates_ex[5] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
2226                         ieee->current_network.rates_ex[6] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
2227                         ieee->current_network.rates_ex[7] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB;
2228
2229                         ieee->rate = 540;
2230                 }else{
2231                         ieee->current_network.rates_ex_len = 0;
2232                         ieee->rate = 110;
2233                 }
2234
2235                 // By default, WMM function will be disabled in IBSS mode
2236                 ieee->current_network.QoS_Enable = 0;
2237
2238                 ieee->current_network.atim_window = 0;
2239                 ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
2240                 if(ieee->short_slot)
2241                         ieee->current_network.capability |= WLAN_CAPABILITY_SHORT_SLOT;
2242
2243         }
2244
2245         ieee->state = IEEE80211_LINKED;
2246         ieee->set_chan(ieee->dev, ieee->current_network.channel);
2247         ieee->link_change(ieee->dev);
2248
2249         notify_wx_assoc_event(ieee);
2250
2251         ieee80211_start_send_beacons(ieee);
2252         printk(KERN_WARNING "after sending beacon packet!\n");
2253
2254         if (ieee->data_hard_resume)
2255                 ieee->data_hard_resume(ieee->dev);
2256
2257         netif_carrier_on(ieee->dev);
2258
2259         up(&ieee->wx_sem);
2260 }
2261 inline void ieee80211_start_ibss(struct ieee80211_device *ieee)
2262 {
2263         queue_delayed_work(ieee->wq, &ieee->start_ibss_wq, 100);
2264 }
2265
2266 /* this is called only in user context, with wx_sem held */
2267 void ieee80211_start_bss(struct ieee80211_device *ieee)
2268 {
2269         unsigned long flags;
2270         //
2271         // Ref: 802.11d 11.1.3.3
2272         // STA shall not start a BSS unless properly formed Beacon frame including a Country IE.
2273         //
2274         if(IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee))
2275         {
2276                 if(! ieee->bGlobalDomain)
2277                 {
2278                         return;
2279                 }
2280         }
2281         /* check if we have already found the net we
2282          * are interested in (if any).
2283          * if not (we are disassociated and we are not
2284          * in associating / authenticating phase) start the background scanning.
2285          */
2286         ieee80211_softmac_check_all_nets(ieee);
2287
2288         /* ensure no-one start an associating process (thus setting
2289          * the ieee->state to ieee80211_ASSOCIATING) while we
2290          * have just cheked it and we are going to enable scan.
2291          * The ieee80211_new_net function is always called with
2292          * lock held (from both ieee80211_softmac_check_all_nets and
2293          * the rx path), so we cannot be in the middle of such function
2294          */
2295         spin_lock_irqsave(&ieee->lock, flags);
2296
2297 //#ifdef ENABLE_IPS
2298 //      printk("start bss ENABLE_IPS\n");
2299 //#else
2300         if (ieee->state == IEEE80211_NOLINK){
2301                 ieee->actscanning = true;
2302                 ieee80211_rtl_start_scan(ieee);
2303         }
2304 //#endif
2305         spin_unlock_irqrestore(&ieee->lock, flags);
2306 }
2307
2308 /* called only in userspace context */
2309 void ieee80211_disassociate(struct ieee80211_device *ieee)
2310 {
2311         netif_carrier_off(ieee->dev);
2312
2313         if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
2314                         ieee80211_reset_queue(ieee);
2315
2316         if (ieee->data_hard_stop)
2317                         ieee->data_hard_stop(ieee->dev);
2318
2319         if(IS_DOT11D_ENABLE(ieee))
2320                 Dot11d_Reset(ieee);
2321
2322         ieee->link_change(ieee->dev);
2323         if (ieee->state == IEEE80211_LINKED)
2324                 notify_wx_assoc_event(ieee);
2325         ieee->state = IEEE80211_NOLINK;
2326
2327 }
2328 void ieee80211_associate_retry_wq(struct work_struct *work)
2329 {
2330         struct delayed_work *dwork = to_delayed_work(work);
2331         struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, associate_retry_wq);
2332         unsigned long flags;
2333         down(&ieee->wx_sem);
2334         if(!ieee->proto_started)
2335                 goto exit;
2336         if(ieee->state != IEEE80211_ASSOCIATING_RETRY)
2337                 goto exit;
2338         /* until we do not set the state to IEEE80211_NOLINK
2339         * there are no possibility to have someone else trying
2340         * to start an association procedure (we get here with
2341         * ieee->state = IEEE80211_ASSOCIATING).
2342         * When we set the state to IEEE80211_NOLINK it is possible
2343         * that the RX path run an attempt to associate, but
2344         * both ieee80211_softmac_check_all_nets and the
2345         * RX path works with ieee->lock held so there are no
2346         * problems. If we are still disassociated then start a scan.
2347         * the lock here is necessary to ensure no one try to start
2348         * an association procedure when we have just checked the
2349         * state and we are going to start the scan.
2350         */
2351         ieee->state = IEEE80211_NOLINK;
2352         ieee->beinretry = true;
2353         ieee80211_softmac_check_all_nets(ieee);
2354
2355         spin_lock_irqsave(&ieee->lock, flags);
2356
2357         if(ieee->state == IEEE80211_NOLINK){
2358                 ieee->beinretry = false;
2359                 ieee->actscanning = true;
2360                 ieee80211_rtl_start_scan(ieee);
2361         }
2362         //YJ,add,080828, notify os here
2363         if(ieee->state == IEEE80211_NOLINK)
2364         {
2365                 notify_wx_assoc_event(ieee);
2366         }
2367         //YJ,add,080828,end
2368         spin_unlock_irqrestore(&ieee->lock, flags);
2369
2370 exit:
2371         up(&ieee->wx_sem);
2372 }
2373
2374 struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee)
2375 {
2376         u8 broadcast_addr[] = {0xff,0xff,0xff,0xff,0xff,0xff};
2377
2378         struct sk_buff *skb = NULL;
2379         struct ieee80211_probe_response *b;
2380
2381         skb = ieee80211_probe_resp(ieee, broadcast_addr);
2382         if (!skb)
2383                 return NULL;
2384
2385         b = (struct ieee80211_probe_response *) skb->data;
2386         b->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_BEACON);
2387
2388         return skb;
2389
2390 }
2391
2392 struct sk_buff *ieee80211_get_beacon(struct ieee80211_device *ieee)
2393 {
2394         struct sk_buff *skb;
2395         struct ieee80211_probe_response *b;
2396
2397         skb = ieee80211_get_beacon_(ieee);
2398         if(!skb)
2399                 return NULL;
2400
2401         b = (struct ieee80211_probe_response *) skb->data;
2402         b->header.seq_ctrl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2403
2404         if (ieee->seq_ctrl[0] == 0xFFF)
2405                 ieee->seq_ctrl[0] = 0;
2406         else
2407                 ieee->seq_ctrl[0]++;
2408
2409         return skb;
2410 }
2411
2412 void ieee80211_softmac_stop_protocol(struct ieee80211_device *ieee)
2413 {
2414         ieee->sync_scan_hurryup = 1;
2415         down(&ieee->wx_sem);
2416         ieee80211_stop_protocol(ieee);
2417         up(&ieee->wx_sem);
2418 }
2419
2420
2421 void ieee80211_stop_protocol(struct ieee80211_device *ieee)
2422 {
2423         if (!ieee->proto_started)
2424                 return;
2425
2426         ieee->proto_started = 0;
2427
2428         ieee80211_stop_send_beacons(ieee);
2429         if((ieee->iw_mode == IW_MODE_INFRA)&&(ieee->state == IEEE80211_LINKED)) {
2430                 SendDisassociation(ieee,NULL,WLAN_REASON_DISASSOC_STA_HAS_LEFT);
2431         }
2432         del_timer_sync(&ieee->associate_timer);
2433         cancel_delayed_work(&ieee->associate_retry_wq);
2434         cancel_delayed_work(&ieee->start_ibss_wq);
2435         ieee80211_stop_scan(ieee);
2436
2437         ieee80211_disassociate(ieee);
2438 }
2439
2440 void ieee80211_softmac_start_protocol(struct ieee80211_device *ieee)
2441 {
2442         ieee->sync_scan_hurryup = 0;
2443         down(&ieee->wx_sem);
2444         ieee80211_start_protocol(ieee);
2445         up(&ieee->wx_sem);
2446 }
2447
2448 void ieee80211_start_protocol(struct ieee80211_device *ieee)
2449 {
2450         short ch = 0;
2451         int i = 0;
2452
2453         if (ieee->proto_started)
2454                 return;
2455
2456         ieee->proto_started = 1;
2457
2458         if (ieee->current_network.channel == 0){
2459                 do{
2460                         ch++;
2461                         if (ch > MAX_CHANNEL_NUMBER)
2462                                 return; /* no channel found */
2463
2464                 }while(!GET_DOT11D_INFO(ieee)->channel_map[ch]);
2465
2466                 ieee->current_network.channel = ch;
2467         }
2468
2469         if (ieee->current_network.beacon_interval == 0)
2470                 ieee->current_network.beacon_interval = 100;
2471         ieee->set_chan(ieee->dev,ieee->current_network.channel);
2472
2473         for(i = 0; i < 17; i++) {
2474           ieee->last_rxseq_num[i] = -1;
2475           ieee->last_rxfrag_num[i] = -1;
2476           ieee->last_packet_time[i] = 0;
2477         }
2478
2479         ieee->init_wmmparam_flag = 0;//reinitialize AC_xx_PARAM registers.
2480
2481
2482         /* if the user set the MAC of the ad-hoc cell and then
2483          * switch to managed mode, shall we  make sure that association
2484          * attempts does not fail just because the user provide the essid
2485          * and the nic is still checking for the AP MAC ??
2486          */
2487         switch (ieee->iw_mode) {
2488                 case IW_MODE_AUTO:
2489                         ieee->iw_mode = IW_MODE_INFRA;
2490                         //not set break here intentionly
2491                 case IW_MODE_INFRA:
2492                         ieee80211_start_bss(ieee);
2493                         break;
2494
2495                 case IW_MODE_ADHOC:
2496                         ieee80211_start_ibss(ieee);
2497                         break;
2498
2499                 case IW_MODE_MASTER:
2500                         ieee80211_start_master_bss(ieee);
2501                 break;
2502
2503                 case IW_MODE_MONITOR:
2504                         ieee80211_start_monitor_mode(ieee);
2505                         break;
2506
2507                 default:
2508                         ieee->iw_mode = IW_MODE_INFRA;
2509                         ieee80211_start_bss(ieee);
2510                         break;
2511         }
2512 }
2513
2514
2515 #define DRV_NAME  "Ieee80211"
2516 void ieee80211_softmac_init(struct ieee80211_device *ieee)
2517 {
2518         int i;
2519         memset(&ieee->current_network, 0, sizeof(struct ieee80211_network));
2520
2521         ieee->state = IEEE80211_NOLINK;
2522         ieee->sync_scan_hurryup = 0;
2523         for(i = 0; i < 5; i++) {
2524           ieee->seq_ctrl[i] = 0;
2525         }
2526
2527         ieee->assoc_id = 0;
2528         ieee->queue_stop = 0;
2529         ieee->scanning = 0;
2530         ieee->softmac_features = 0; //so IEEE2100-like driver are happy
2531         ieee->wap_set = 0;
2532         ieee->ssid_set = 0;
2533         ieee->proto_started = 0;
2534         ieee->basic_rate = IEEE80211_DEFAULT_BASIC_RATE;
2535         ieee->rate = 3;
2536 //#ifdef ENABLE_LPS
2537         ieee->ps = IEEE80211_PS_MBCAST|IEEE80211_PS_UNICAST;
2538 //#else
2539 //      ieee->ps = IEEE80211_PS_DISABLED;
2540 //#endif
2541         ieee->sta_sleep = 0;
2542 //by amy
2543         ieee->bInactivePs = false;
2544         ieee->actscanning = false;
2545         ieee->ListenInterval = 2;
2546         ieee->NumRxDataInPeriod = 0; //YJ,add,080828
2547         ieee->NumRxBcnInPeriod = 0; //YJ,add,080828
2548         ieee->NumRxOkTotal = 0;//+by amy 080312
2549         ieee->NumRxUnicast = 0;//YJ,add,080828,for keep alive
2550         ieee->beinretry = false;
2551         ieee->bHwRadioOff = false;
2552 //by amy
2553
2554         init_mgmt_queue(ieee);
2555
2556         ieee->tx_pending.txb = NULL;
2557
2558         init_timer(&ieee->associate_timer);
2559         ieee->associate_timer.data = (unsigned long)ieee;
2560         ieee->associate_timer.function = ieee80211_associate_abort_cb;
2561
2562         init_timer(&ieee->beacon_timer);
2563         ieee->beacon_timer.data = (unsigned long) ieee;
2564         ieee->beacon_timer.function = ieee80211_send_beacon_cb;
2565
2566         ieee->wq = create_workqueue(DRV_NAME);
2567
2568         INIT_DELAYED_WORK(&ieee->start_ibss_wq,(void*) ieee80211_start_ibss_wq);
2569         INIT_WORK(&ieee->associate_complete_wq,(void*) ieee80211_associate_complete_wq);
2570         INIT_WORK(&ieee->associate_procedure_wq,(void*) ieee80211_associate_procedure_wq);
2571         INIT_DELAYED_WORK(&ieee->softmac_scan_wq,(void*) ieee80211_softmac_scan_wq);
2572         INIT_DELAYED_WORK(&ieee->associate_retry_wq,(void*) ieee80211_associate_retry_wq);
2573         INIT_WORK(&ieee->wx_sync_scan_wq,(void*) ieee80211_wx_sync_scan_wq);
2574 //      INIT_WORK(&ieee->watch_dog_wq,(void*) ieee80211_watch_dog_wq);
2575
2576         sema_init(&ieee->wx_sem, 1);
2577         sema_init(&ieee->scan_sem, 1);
2578
2579         spin_lock_init(&ieee->mgmt_tx_lock);
2580         spin_lock_init(&ieee->beacon_lock);
2581
2582         tasklet_init(&ieee->ps_task,
2583              (void(*)(unsigned long)) ieee80211_sta_ps,
2584              (unsigned long)ieee);
2585         ieee->pDot11dInfo = kmalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
2586 }
2587
2588 void ieee80211_softmac_free(struct ieee80211_device *ieee)
2589 {
2590         down(&ieee->wx_sem);
2591
2592         del_timer_sync(&ieee->associate_timer);
2593         cancel_delayed_work(&ieee->associate_retry_wq);
2594
2595
2596         //add for RF power on power of by lizhaoming 080512
2597         cancel_delayed_work(&ieee->GPIOChangeRFWorkItem);
2598
2599         destroy_workqueue(ieee->wq);
2600         kfree(ieee->pDot11dInfo);
2601         up(&ieee->wx_sem);
2602 }
2603
2604 /********************************************************
2605  * Start of WPA code.                                   *
2606  * this is stolen from the ipw2200 driver               *
2607  ********************************************************/
2608
2609
2610 static int ieee80211_wpa_enable(struct ieee80211_device *ieee, int value)
2611 {
2612         /* This is called when wpa_supplicant loads and closes the driver
2613          * interface. */
2614         printk("%s WPA\n",value ? "enabling" : "disabling");
2615         ieee->wpa_enabled = value;
2616         return 0;
2617 }
2618
2619
2620 void ieee80211_wpa_assoc_frame(struct ieee80211_device *ieee, char *wpa_ie, int wpa_ie_len)
2621 {
2622         /* make sure WPA is enabled */
2623         ieee80211_wpa_enable(ieee, 1);
2624
2625         ieee80211_disassociate(ieee);
2626 }
2627
2628
2629 static int ieee80211_wpa_mlme(struct ieee80211_device *ieee, int command, int reason)
2630 {
2631
2632         int ret = 0;
2633
2634         switch (command) {
2635         case IEEE_MLME_STA_DEAUTH:
2636                 // silently ignore
2637                 break;
2638
2639         case IEEE_MLME_STA_DISASSOC:
2640                 ieee80211_disassociate(ieee);
2641                 break;
2642
2643         default:
2644                 printk("Unknown MLME request: %d\n", command);
2645                 ret = -EOPNOTSUPP;
2646         }
2647
2648         return ret;
2649 }
2650
2651
2652 static int ieee80211_wpa_set_wpa_ie(struct ieee80211_device *ieee,
2653                               struct ieee_param *param, int plen)
2654 {
2655         u8 *buf;
2656
2657         if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
2658             (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
2659                 return -EINVAL;
2660
2661         if (param->u.wpa_ie.len) {
2662                 buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
2663                               GFP_KERNEL);
2664                 if (buf == NULL)
2665                         return -ENOMEM;
2666
2667                 kfree(ieee->wpa_ie);
2668                 ieee->wpa_ie = buf;
2669                 ieee->wpa_ie_len = param->u.wpa_ie.len;
2670         } else {
2671                 kfree(ieee->wpa_ie);
2672                 ieee->wpa_ie = NULL;
2673                 ieee->wpa_ie_len = 0;
2674         }
2675
2676         ieee80211_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
2677         return 0;
2678 }
2679
2680 #define AUTH_ALG_OPEN_SYSTEM                    0x1
2681 #define AUTH_ALG_SHARED_KEY                     0x2
2682
2683 static int ieee80211_wpa_set_auth_algs(struct ieee80211_device *ieee, int value)
2684 {
2685
2686         struct ieee80211_security sec = {
2687                 .flags = SEC_AUTH_MODE,
2688         };
2689         int ret = 0;
2690
2691         if (value & AUTH_ALG_SHARED_KEY) {
2692                 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
2693                 ieee->open_wep = 0;
2694         } else {
2695                 sec.auth_mode = WLAN_AUTH_OPEN;
2696                 ieee->open_wep = 1;
2697         }
2698
2699         if (ieee->set_security)
2700                 ieee->set_security(ieee->dev, &sec);
2701         else
2702                 ret = -EOPNOTSUPP;
2703
2704         return ret;
2705 }
2706
2707 static int ieee80211_wpa_set_param(struct ieee80211_device *ieee, u8 name, u32 value)
2708 {
2709         int ret=0;
2710         unsigned long flags;
2711
2712         switch (name) {
2713         case IEEE_PARAM_WPA_ENABLED:
2714                 ret = ieee80211_wpa_enable(ieee, value);
2715                 break;
2716
2717         case IEEE_PARAM_TKIP_COUNTERMEASURES:
2718                 ieee->tkip_countermeasures=value;
2719                 break;
2720
2721         case IEEE_PARAM_DROP_UNENCRYPTED: {
2722                 /* HACK:
2723                  *
2724                  * wpa_supplicant calls set_wpa_enabled when the driver
2725                  * is loaded and unloaded, regardless of if WPA is being
2726                  * used.  No other calls are made which can be used to
2727                  * determine if encryption will be used or not prior to
2728                  * association being expected.  If encryption is not being
2729                  * used, drop_unencrypted is set to false, else true -- we
2730                  * can use this to determine if the CAP_PRIVACY_ON bit should
2731                  * be set.
2732                  */
2733                 struct ieee80211_security sec = {
2734                         .flags = SEC_ENABLED,
2735                         .enabled = value,
2736                 };
2737                 ieee->drop_unencrypted = value;
2738                 /* We only change SEC_LEVEL for open mode. Others
2739                  * are set by ipw_wpa_set_encryption.
2740                  */
2741                 if (!value) {
2742                         sec.flags |= SEC_LEVEL;
2743                         sec.level = SEC_LEVEL_0;
2744                 }
2745                 else {
2746                         sec.flags |= SEC_LEVEL;
2747                         sec.level = SEC_LEVEL_1;
2748                 }
2749                 if (ieee->set_security)
2750                         ieee->set_security(ieee->dev, &sec);
2751                 break;
2752         }
2753
2754         case IEEE_PARAM_PRIVACY_INVOKED:
2755                 ieee->privacy_invoked=value;
2756                 break;
2757
2758         case IEEE_PARAM_AUTH_ALGS:
2759                 ret = ieee80211_wpa_set_auth_algs(ieee, value);
2760                 break;
2761
2762         case IEEE_PARAM_IEEE_802_1X:
2763                 ieee->ieee802_1x=value;
2764                 break;
2765         case IEEE_PARAM_WPAX_SELECT:
2766                 // added for WPA2 mixed mode
2767                 //printk(KERN_WARNING "------------------------>wpax value = %x\n", value);
2768                 spin_lock_irqsave(&ieee->wpax_suitlist_lock,flags);
2769                 ieee->wpax_type_set = 1;
2770                 ieee->wpax_type_notify = value;
2771                 spin_unlock_irqrestore(&ieee->wpax_suitlist_lock,flags);
2772                 break;
2773
2774         default:
2775                 printk("Unknown WPA param: %d\n",name);
2776                 ret = -EOPNOTSUPP;
2777         }
2778
2779         return ret;
2780 }
2781
2782 /* implementation borrowed from hostap driver */
2783
2784 static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
2785                                   struct ieee_param *param, int param_len)
2786 {
2787         int ret = 0;
2788
2789         struct ieee80211_crypto_ops *ops;
2790         struct ieee80211_crypt_data **crypt;
2791
2792         struct ieee80211_security sec = {
2793                 .flags = 0,
2794         };
2795
2796         param->u.crypt.err = 0;
2797         param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
2798
2799         if (param_len !=
2800             (int) ((char *) param->u.crypt.key - (char *) param) +
2801             param->u.crypt.key_len) {
2802                 printk("Len mismatch %d, %d\n", param_len,
2803                                param->u.crypt.key_len);
2804                 return -EINVAL;
2805         }
2806         if (is_broadcast_ether_addr(param->sta_addr)) {
2807                 if (param->u.crypt.idx >= WEP_KEYS)
2808                         return -EINVAL;
2809                 crypt = &ieee->crypt[param->u.crypt.idx];
2810         } else {
2811                 return -EINVAL;
2812         }
2813
2814         if (strcmp(param->u.crypt.alg, "none") == 0) {
2815                 if (crypt) {
2816                         sec.enabled = 0;
2817                         // FIXME FIXME
2818                         //sec.encrypt = 0;
2819                         sec.level = SEC_LEVEL_0;
2820                         sec.flags |= SEC_ENABLED | SEC_LEVEL;
2821                         ieee80211_crypt_delayed_deinit(ieee, crypt);
2822                 }
2823                 goto done;
2824         }
2825         sec.enabled = 1;
2826 // FIXME FIXME
2827 //      sec.encrypt = 1;
2828         sec.flags |= SEC_ENABLED;
2829
2830         /* IPW HW cannot build TKIP MIC, host decryption still needed. */
2831         if (!(ieee->host_encrypt || ieee->host_decrypt) &&
2832             strcmp(param->u.crypt.alg, "TKIP"))
2833                 goto skip_host_crypt;
2834
2835         ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2836         if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0)
2837                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2838         else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0)
2839                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2840         else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0)
2841                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2842         if (ops == NULL) {
2843                 printk("unknown crypto alg '%s'\n", param->u.crypt.alg);
2844                 param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
2845                 ret = -EINVAL;
2846                 goto done;
2847         }
2848
2849         if (*crypt == NULL || (*crypt)->ops != ops) {
2850                 struct ieee80211_crypt_data *new_crypt;
2851
2852                 ieee80211_crypt_delayed_deinit(ieee, crypt);
2853
2854                 new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
2855                 if (new_crypt == NULL) {
2856                         ret = -ENOMEM;
2857                         goto done;
2858                 }
2859                 memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
2860                 new_crypt->ops = ops;
2861                 if (new_crypt->ops)
2862                         new_crypt->priv =
2863                                 new_crypt->ops->init(param->u.crypt.idx);
2864
2865                 if (new_crypt->priv == NULL) {
2866                         kfree(new_crypt);
2867                         param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
2868                         ret = -EINVAL;
2869                         goto done;
2870                 }
2871
2872                 *crypt = new_crypt;
2873         }
2874
2875         if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
2876             (*crypt)->ops->set_key(param->u.crypt.key,
2877                                    param->u.crypt.key_len, param->u.crypt.seq,
2878                                    (*crypt)->priv) < 0) {
2879                 printk("key setting failed\n");
2880                 param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
2881                 ret = -EINVAL;
2882                 goto done;
2883         }
2884
2885  skip_host_crypt:
2886         if (param->u.crypt.set_tx) {
2887                 ieee->tx_keyidx = param->u.crypt.idx;
2888                 sec.active_key = param->u.crypt.idx;
2889                 sec.flags |= SEC_ACTIVE_KEY;
2890         } else
2891                 sec.flags &= ~SEC_ACTIVE_KEY;
2892
2893         if (param->u.crypt.alg != NULL) {
2894                 memcpy(sec.keys[param->u.crypt.idx],
2895                        param->u.crypt.key,
2896                        param->u.crypt.key_len);
2897                 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
2898                 sec.flags |= (1 << param->u.crypt.idx);
2899
2900                 if (strcmp(param->u.crypt.alg, "WEP") == 0) {
2901                         sec.flags |= SEC_LEVEL;
2902                         sec.level = SEC_LEVEL_1;
2903                 } else if (strcmp(param->u.crypt.alg, "TKIP") == 0) {
2904                         sec.flags |= SEC_LEVEL;
2905                         sec.level = SEC_LEVEL_2;
2906                 } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) {
2907                         sec.flags |= SEC_LEVEL;
2908                         sec.level = SEC_LEVEL_3;
2909                 }
2910         }
2911  done:
2912         if (ieee->set_security)
2913                 ieee->set_security(ieee->dev, &sec);
2914
2915         /* Do not reset port if card is in Managed mode since resetting will
2916          * generate new IEEE 802.11 authentication which may end up in looping
2917          * with IEEE 802.1X.  If your hardware requires a reset after WEP
2918          * configuration (for example... Prism2), implement the reset_port in
2919          * the callbacks structures used to initialize the 802.11 stack. */
2920         if (ieee->reset_on_keychange &&
2921             ieee->iw_mode != IW_MODE_INFRA &&
2922             ieee->reset_port &&
2923             ieee->reset_port(ieee->dev)) {
2924                 printk("reset_port failed\n");
2925                 param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
2926                 return -EINVAL;
2927         }
2928
2929         return ret;
2930 }
2931
2932 int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_point *p)
2933 {
2934         struct ieee_param *param;
2935         int ret=0;
2936
2937         down(&ieee->wx_sem);
2938         //IEEE_DEBUG_INFO("wpa_supplicant: len=%d\n", p->length);
2939
2940         if (p->length < sizeof(struct ieee_param) || !p->pointer){
2941                 ret = -EINVAL;
2942                 goto out;
2943         }
2944
2945         param = kmalloc(p->length, GFP_KERNEL);
2946         if (param == NULL){
2947                 ret = -ENOMEM;
2948                 goto out;
2949         }
2950         if (copy_from_user(param, p->pointer, p->length)) {
2951                 kfree(param);
2952                 ret = -EFAULT;
2953                 goto out;
2954         }
2955
2956         switch (param->cmd) {
2957
2958         case IEEE_CMD_SET_WPA_PARAM:
2959                 ret = ieee80211_wpa_set_param(ieee, param->u.wpa_param.name,
2960                                         param->u.wpa_param.value);
2961                 break;
2962
2963         case IEEE_CMD_SET_WPA_IE:
2964                 ret = ieee80211_wpa_set_wpa_ie(ieee, param, p->length);
2965                 break;
2966
2967         case IEEE_CMD_SET_ENCRYPTION:
2968                 ret = ieee80211_wpa_set_encryption(ieee, param, p->length);
2969                 break;
2970
2971         case IEEE_CMD_MLME:
2972                 ret = ieee80211_wpa_mlme(ieee, param->u.mlme.command,
2973                                    param->u.mlme.reason_code);
2974                 break;
2975
2976         default:
2977                 printk("Unknown WPA supplicant request: %d\n",param->cmd);
2978                 ret = -EOPNOTSUPP;
2979                 break;
2980         }
2981
2982         if (ret == 0 && copy_to_user(p->pointer, param, p->length))
2983                 ret = -EFAULT;
2984
2985         kfree(param);
2986 out:
2987         up(&ieee->wx_sem);
2988
2989         return ret;
2990 }
2991
2992 void notify_wx_assoc_event(struct ieee80211_device *ieee)
2993 {
2994         union iwreq_data wrqu;
2995         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
2996         if (ieee->state == IEEE80211_LINKED)
2997                 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid, ETH_ALEN);
2998         else
2999                 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
3000         wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3001 }