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/version.h>
  22 #include <asm/uaccess.h>
  23
  24 #include "dot11d.h"
  25 u8 rsn_authen_cipher_suite[16][4] = {
  26         {0x00,0x0F,0xAC,0x00}, //Use group key, //Reserved
  27         {0x00,0x0F,0xAC,0x01}, //WEP-40         //RSNA default
  28         {0x00,0x0F,0xAC,0x02}, //TKIP           //NONE          //{used just as default}
  29         {0x00,0x0F,0xAC,0x03}, //WRAP-historical
  30         {0x00,0x0F,0xAC,0x04}, //CCMP
  31         {0x00,0x0F,0xAC,0x05}, //WEP-104
  32 };
  33
  34 short ieee80211_is_54g(struct ieee80211_network net)
  35 {
  36         return ((net.rates_ex_len > 0) || (net.rates_len > 4));
  37 }
  38
  39 short ieee80211_is_shortslot(struct ieee80211_network net)
  40 {
  41         return (net.capability & WLAN_CAPABILITY_SHORT_SLOT);
  42 }
  43
  44 /* returns the total length needed for pleacing the RATE MFIE
  45  * tag and the EXTENDED RATE MFIE tag if needed.
  46  * It encludes two bytes per tag for the tag itself and its len
  47  */
  48 unsigned int ieee80211_MFIE_rate_len(struct ieee80211_device *ieee)
  49 {
  50         unsigned int rate_len = 0;
  51
  52         if (ieee->modulation & IEEE80211_CCK_MODULATION)
  53                 rate_len = IEEE80211_CCK_RATE_LEN + 2;
  54
  55         if (ieee->modulation & IEEE80211_OFDM_MODULATION)
  56
  57                 rate_len += IEEE80211_OFDM_RATE_LEN + 2;
  58
  59         return rate_len;
  60 }
  61
  62 /* pleace the MFIE rate, tag to the memory (double) poined.
  63  * Then it updates the pointer so that
  64  * it points after the new MFIE tag added.
  65  */
  66 void ieee80211_MFIE_Brate(struct ieee80211_device *ieee, u8 **tag_p)
  67 {
  68         u8 *tag = *tag_p;
  69
  70         if (ieee->modulation & IEEE80211_CCK_MODULATION){
  71                 *tag++ = MFIE_TYPE_RATES;
  72                 *tag++ = 4;
  73                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
  74                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
  75                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
  76                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
  77         }
  78
  79         /* We may add an option for custom rates that specific HW might support */
  80         *tag_p = tag;
  81 }
  82
  83 void ieee80211_MFIE_Grate(struct ieee80211_device *ieee, u8 **tag_p)
  84 {
  85         u8 *tag = *tag_p;
  86
  87                 if (ieee->modulation & IEEE80211_OFDM_MODULATION){
  88
  89                 *tag++ = MFIE_TYPE_RATES_EX;
  90                 *tag++ = 8;
  91                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
  92                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
  93                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
  94                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
  95                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
  96                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
  97                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
  98                 *tag++ = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB;
  99
 100         }
 101
 102         /* We may add an option for custom rates that specific HW might support */
 103         *tag_p = tag;
 104 }
 105
 106
 107 void ieee80211_WMM_Info(struct ieee80211_device *ieee, u8 **tag_p) {
 108         u8 *tag = *tag_p;
 109
 110         *tag++ = MFIE_TYPE_GENERIC; //0
 111         *tag++ = 7;
 112         *tag++ = 0x00;
 113         *tag++ = 0x50;
 114         *tag++ = 0xf2;
 115         *tag++ = 0x02;//5
 116         *tag++ = 0x00;
 117         *tag++ = 0x01;
 118 #ifdef SUPPORT_USPD
 119         if(ieee->current_network.wmm_info & 0x80) {
 120                 *tag++ = 0x0f|MAX_SP_Len;
 121         } else {
 122                 *tag++ = MAX_SP_Len;
 123         }
 124 #else
 125         *tag++ = MAX_SP_Len;
 126 #endif
 127         *tag_p = tag;
 128 }
 129
 130 void ieee80211_TURBO_Info(struct ieee80211_device *ieee, u8 **tag_p) {
 131         u8 *tag = *tag_p;
 132
 133         *tag++ = MFIE_TYPE_GENERIC; //0
 134         *tag++ = 7;
 135         *tag++ = 0x00;
 136         *tag++ = 0xe0;
 137         *tag++ = 0x4c;
 138         *tag++ = 0x01;//5
 139         *tag++ = 0x02;
 140         *tag++ = 0x11;
 141         *tag++ = 0x00;
 142
 143         *tag_p = tag;
 144         printk(KERN_ALERT "This is enable turbo mode IE process\n");
 145 }
 146
 147 void enqueue_mgmt(struct ieee80211_device *ieee, struct sk_buff *skb)
 148 {
 149         int nh;
 150         nh = (ieee->mgmt_queue_head +1) % MGMT_QUEUE_NUM;
 151
 152 /*
 153  * if the queue is full but we have newer frames then
 154  * just overwrites the oldest.
 155  *
 156  * if (nh == ieee->mgmt_queue_tail)
 157  *              return -1;
 158  */
 159         ieee->mgmt_queue_head = nh;
 160         ieee->mgmt_queue_ring[nh] = skb;
 161
 162         //return 0;
 163 }
 164
 165 struct sk_buff *dequeue_mgmt(struct ieee80211_device *ieee)
 166 {
 167         struct sk_buff *ret;
 168
 169         if(ieee->mgmt_queue_tail == ieee->mgmt_queue_head)
 170                 return NULL;
 171
 172         ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail];
 173
 174         ieee->mgmt_queue_tail =
 175                 (ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM;
 176
 177         return ret;
 178 }
 179
 180 void init_mgmt_queue(struct ieee80211_device *ieee)
 181 {
 182         ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
 183 }
 184
 185
 186 void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl);
 187
 188 inline void softmac_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee)
 189 {
 190         unsigned long flags;
 191         short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
 192         struct ieee80211_hdr_3addr  *header=
 193                 (struct ieee80211_hdr_3addr  *) skb->data;
 194
 195
 196         spin_lock_irqsave(&ieee->lock, flags);
 197
 198         /* called with 2nd param 0, no mgmt lock required */
 199         ieee80211_sta_wakeup(ieee,0);
 200
 201         if(single){
 202                 if(ieee->queue_stop){
 203
 204                         enqueue_mgmt(ieee,skb);
 205                 }else{
 206                         header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
 207
 208                         if (ieee->seq_ctrl[0] == 0xFFF)
 209                                 ieee->seq_ctrl[0] = 0;
 210                         else
 211                                 ieee->seq_ctrl[0]++;
 212
 213                         /* avoid watchdog triggers */
 214                         ieee->dev->trans_start = jiffies;
 215                         ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
 216                 }
 217
 218                 spin_unlock_irqrestore(&ieee->lock, flags);
 219         }else{
 220                 spin_unlock_irqrestore(&ieee->lock, flags);
 221                 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
 222
 223                 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
 224
 225                 if (ieee->seq_ctrl[0] == 0xFFF)
 226                         ieee->seq_ctrl[0] = 0;
 227                 else
 228                         ieee->seq_ctrl[0]++;
 229
 230                 /* avoid watchdog triggers */
 231                 ieee->dev->trans_start = jiffies;
 232                 ieee->softmac_hard_start_xmit(skb,ieee->dev);
 233
 234                 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
 235         }
 236 }
 237
 238
 239 inline void softmac_ps_mgmt_xmit(struct sk_buff *skb, struct ieee80211_device *ieee)
 240 {
 241
 242         short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
 243         struct ieee80211_hdr_3addr  *header =
 244                 (struct ieee80211_hdr_3addr  *) skb->data;
 245
 246
 247         if(single){
 248
 249                 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
 250
 251                 if (ieee->seq_ctrl[0] == 0xFFF)
 252                         ieee->seq_ctrl[0] = 0;
 253                 else
 254                         ieee->seq_ctrl[0]++;
 255
 256                 /* avoid watchdog triggers */
 257                 ieee->dev->trans_start = jiffies;
 258                 ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
 259
 260         }else{
 261
 262                 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
 263
 264                 if (ieee->seq_ctrl[0] == 0xFFF)
 265                         ieee->seq_ctrl[0] = 0;
 266                 else
 267                         ieee->seq_ctrl[0]++;
 268
 269                 /* avoid watchdog triggers */
 270                 ieee->dev->trans_start = jiffies;
 271                 ieee->softmac_hard_start_xmit(skb,ieee->dev);
 272
 273         }
 274 //      dev_kfree_skb_any(skb);//edit by thomas
 275 }
 276 //by amy for power save
 277 inline struct sk_buff *ieee80211_disassociate_skb(
 278                                                         struct ieee80211_network *beacon,
 279                                                         struct ieee80211_device *ieee,
 280                                                         u8      asRsn)
 281 {
 282         struct sk_buff *skb;
 283         struct ieee80211_disassoc_frame *disass;
 284
 285         skb = dev_alloc_skb(sizeof(struct ieee80211_disassoc_frame));
 286         if (!skb)
 287                 return NULL;
 288
 289         disass = (struct ieee80211_disassoc_frame *) skb_put(skb,sizeof(struct ieee80211_disassoc_frame));
 290         disass->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_DISASSOC);
 291         disass->header.duration_id = 0;
 292
 293         memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN);
 294         memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 295         memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN);
 296
 297         disass->reasoncode = asRsn;
 298         return skb;
 299 }
 300 void
 301 SendDisassociation(
 302         struct ieee80211_device *ieee,
 303         u8*                     asSta,
 304         u8                      asRsn
 305 )
 306 {
 307         struct ieee80211_network *beacon = &ieee->current_network;
 308         struct sk_buff *skb;
 309         skb = ieee80211_disassociate_skb(beacon,ieee,asRsn);
 310         if (skb){
 311                 softmac_mgmt_xmit(skb, ieee);
 312                 //dev_kfree_skb_any(skb);//edit by thomas
 313         }
 314 }
 315
 316 //by amy for power save
 317 inline struct sk_buff *ieee80211_probe_req(struct ieee80211_device *ieee)
 318 {
 319         unsigned int len,rate_len;
 320         u8 *tag;
 321         struct sk_buff *skb;
 322         struct ieee80211_probe_request *req;
 323
 324         len = ieee->current_network.ssid_len;
 325
 326         rate_len = ieee80211_MFIE_rate_len(ieee);
 327
 328         skb = dev_alloc_skb(sizeof(struct ieee80211_probe_request) +
 329                             2 + len + rate_len);
 330         if (!skb)
 331                 return NULL;
 332
 333         req = (struct ieee80211_probe_request *) skb_put(skb,sizeof(struct ieee80211_probe_request));
 334         req->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_REQ);
 335         req->header.duration_id = 0; //FIXME: is this OK ?
 336
 337         memset(req->header.addr1, 0xff, ETH_ALEN);
 338         memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 339         memset(req->header.addr3, 0xff, ETH_ALEN);
 340
 341         tag = (u8 *) skb_put(skb,len+2+rate_len);
 342
 343         *tag++ = MFIE_TYPE_SSID;
 344         *tag++ = len;
 345         memcpy(tag, ieee->current_network.ssid, len);
 346         tag += len;
 347         ieee80211_MFIE_Brate(ieee,&tag);
 348         ieee80211_MFIE_Grate(ieee,&tag);
 349
 350         return skb;
 351 }
 352
 353 struct sk_buff *ieee80211_get_beacon_(struct ieee80211_device *ieee);
 354
 355 void ext_ieee80211_send_beacon_wq(struct ieee80211_device *ieee)
 356 {
 357         struct sk_buff *skb;
 358
 359         //unsigned long flags;
 360
 361         skb = ieee80211_get_beacon_(ieee);
 362
 363         if (skb){
 364                 softmac_mgmt_xmit(skb, ieee);
 365                 ieee->softmac_stats.tx_beacons++;
 366                 dev_kfree_skb_any(skb);//edit by thomas
 367         }
 368
 369
 370         //printk(KERN_WARNING "[1] beacon sending!\n");
 371         ieee->beacon_timer.expires = jiffies +
 372                 (MSECS( ieee->current_network.beacon_interval -5));
 373
 374         //spin_lock_irqsave(&ieee->beacon_lock,flags);
 375         if(ieee->beacon_txing)
 376                 add_timer(&ieee->beacon_timer);
 377         //spin_unlock_irqrestore(&ieee->beacon_lock,flags);
 378 }
 379
 380 void ieee80211_send_beacon(struct ieee80211_device *ieee)
 381 {
 382         struct sk_buff *skb;
 383
 384         //unsigned long flags;
 385
 386         skb = ieee80211_get_beacon_(ieee);
 387
 388         if (skb){
 389                 softmac_mgmt_xmit(skb, ieee);
 390                 ieee->softmac_stats.tx_beacons++;
 391                 dev_kfree_skb_any(skb);//edit by thomas
 392         }
 393
 394         //printk(KERN_WARNING "[1] beacon sending!\n");
 395         ieee->beacon_timer.expires = jiffies +
 396                 (MSECS( ieee->current_network.beacon_interval -5));
 397
 398         //spin_lock_irqsave(&ieee->beacon_lock,flags);
 399         if(ieee->beacon_txing)
 400                 add_timer(&ieee->beacon_timer);
 401         //spin_unlock_irqrestore(&ieee->beacon_lock,flags);
 402 }
 403
 404
 405 void ieee80211_send_beacon_cb(unsigned long _ieee)
 406 {
 407         struct ieee80211_device *ieee =
 408                 (struct ieee80211_device *) _ieee;
 409         unsigned long flags;
 410
 411         spin_lock_irqsave(&ieee->beacon_lock, flags);
 412         ieee80211_send_beacon(ieee);
 413         spin_unlock_irqrestore(&ieee->beacon_lock, flags);
 414 }
 415
 416 void ieee80211_send_probe(struct ieee80211_device *ieee)
 417 {
 418         struct sk_buff *skb;
 419
 420         skb = ieee80211_probe_req(ieee);
 421         if (skb){
 422                 softmac_mgmt_xmit(skb, ieee);
 423                 ieee->softmac_stats.tx_probe_rq++;
 424                 //dev_kfree_skb_any(skb);//edit by thomas
 425         }
 426 }
 427
 428 void ieee80211_send_probe_requests(struct ieee80211_device *ieee)
 429 {
 430         if (ieee->active_scan && (ieee->softmac_features & IEEE_SOFTMAC_PROBERQ)){
 431                 ieee80211_send_probe(ieee);
 432                 ieee80211_send_probe(ieee);
 433         }
 434 }
 435
 436 /* this performs syncro scan blocking the caller until all channels
 437  * in the allowed channel map has been checked.
 438  */
 439 void ieee80211_softmac_scan_syncro(struct ieee80211_device *ieee)
 440 {
 441         short ch = 0;
 442         u8 channel_map[MAX_CHANNEL_NUMBER+1];
 443         memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
 444         down(&ieee->scan_sem);
 445 //      printk("==================> Sync scan\n");
 446
 447         while(1)
 448         {
 449
 450                 do{
 451                         ch++;
 452                         if (ch > MAX_CHANNEL_NUMBER)
 453                                 goto out; /* scan completed */
 454
 455                 }while(!channel_map[ch]);
 456                 /* this fuction can be called in two situations
 457                  * 1- We have switched to ad-hoc mode and we are
 458                  *    performing a complete syncro scan before conclude
 459                  *    there are no interesting cell and to create a
 460                  *    new one. In this case the link state is
 461                  *    IEEE80211_NOLINK until we found an interesting cell.
 462                  *    If so the ieee8021_new_net, called by the RX path
 463                  *    will set the state to IEEE80211_LINKED, so we stop
 464                  *    scanning
 465                  * 2- We are linked and the root uses run iwlist scan.
 466                  *    So we switch to IEEE80211_LINKED_SCANNING to remember
 467                  *    that we are still logically linked (not interested in
 468                  *    new network events, despite for updating the net list,
 469                  *    but we are temporarly 'unlinked' as the driver shall
 470                  *    not filter RX frames and the channel is changing.
 471                  * So the only situation in witch are interested is to check
 472                  * if the state become LINKED because of the #1 situation
 473                  */
 474
 475                 if (ieee->state == IEEE80211_LINKED)
 476                         goto out;
 477
 478                 ieee->set_chan(ieee->dev, ch);
 479 //              printk("=====>channel=%d   ",ch);
 480                 if(channel_map[ch] == 1)
 481                 {
 482 //                      printk("====send probe request\n");
 483                         ieee80211_send_probe_requests(ieee);
 484                 }
 485                 /* this prevent excessive time wait when we
 486                  * need to wait for a syncro scan to end..
 487                  */
 488                 if (ieee->sync_scan_hurryup)
 489                         goto out;
 490
 491
 492                 msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME);
 493
 494         }
 495 out:
 496         ieee->sync_scan_hurryup = 0;
 497         up(&ieee->scan_sem);
 498         if(IS_DOT11D_ENABLE(ieee))
 499                 DOT11D_ScanComplete(ieee);
 500 }
 501
 502 void ieee80211_softmac_ips_scan_syncro(struct ieee80211_device *ieee)
 503 {
 504         int ch;
 505         unsigned int watch_dog = 0;
 506         u8 channel_map[MAX_CHANNEL_NUMBER+1];
 507         memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
 508         down(&ieee->scan_sem);
 509         ch = ieee->current_network.channel;
 510 //              if(ieee->sync_scan_hurryup)
 511 //      {
 512
 513 //              printk("stop scan sync\n");
 514 //              goto out;
 515 //      }
 516 //      printk("=======hh===============>ips scan\n");
 517         while(1)
 518         {
 519                 /* this fuction can be called in two situations
 520                  * 1- We have switched to ad-hoc mode and we are
 521                  *    performing a complete syncro scan before conclude
 522                  *    there are no interesting cell and to create a
 523                  *    new one. In this case the link state is
 524                  *    IEEE80211_NOLINK until we found an interesting cell.
 525                  *    If so the ieee8021_new_net, called by the RX path
 526                  *    will set the state to IEEE80211_LINKED, so we stop
 527                  *    scanning
 528                  * 2- We are linked and the root uses run iwlist scan.
 529                  *    So we switch to IEEE80211_LINKED_SCANNING to remember
 530                  *    that we are still logically linked (not interested in
 531                  *    new network events, despite for updating the net list,
 532                  *    but we are temporarly 'unlinked' as the driver shall
 533                  *    not filter RX frames and the channel is changing.
 534                  * So the only situation in witch are interested is to check
 535                  * if the state become LINKED because of the #1 situation
 536                  */
 537                 if (ieee->state == IEEE80211_LINKED)
 538                 {
 539                         goto out;
 540                 }
 541                 if(channel_map[ieee->current_network.channel] > 0)
 542                 {
 543                         ieee->set_chan(ieee->dev, ieee->current_network.channel);
 544 //                      printk("======>channel=%d  ",ieee->current_network.channel);
 545                 }
 546                 if(channel_map[ieee->current_network.channel] == 1)
 547                 {
 548 //                      printk("====send probe request\n");
 549                         ieee80211_send_probe_requests(ieee);
 550                 }
 551                 /* this prevent excessive time wait when we
 552                  * need to wait for a syncro scan to end..
 553                  */
 554 //                if (ieee->sync_scan_hurryup)
 555 //                        goto out;
 556
 557                 msleep_interruptible_rtl(IEEE80211_SOFTMAC_SCAN_TIME);
 558
 559                 do{
 560                         if (watch_dog++ >= MAX_CHANNEL_NUMBER)
 561                 //      if (++watch_dog >= 15);//MAX_CHANNEL_NUMBER)  //YJ,modified,080630
 562                                 goto out; /* scan completed */
 563
 564                         ieee->current_network.channel = (ieee->current_network.channel + 1)%MAX_CHANNEL_NUMBER;
 565                 }while(!channel_map[ieee->current_network.channel]);
 566         }
 567 out:
 568         //ieee->sync_scan_hurryup = 0;
 569         //ieee->set_chan(ieee->dev, ch);
 570         //ieee->current_network.channel = ch;
 571         ieee->actscanning = false;
 572         up(&ieee->scan_sem);
 573         if(IS_DOT11D_ENABLE(ieee))
 574                 DOT11D_ScanComplete(ieee);
 575 }
 576
 577 void ieee80211_softmac_scan_wq(struct work_struct *work)
 578 {
 579         struct delayed_work *dwork = to_delayed_work(work);
 580         struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, softmac_scan_wq);
 581         static short watchdog = 0;
 582         u8 channel_map[MAX_CHANNEL_NUMBER+1];
 583         memcpy(channel_map, GET_DOT11D_INFO(ieee)->channel_map, MAX_CHANNEL_NUMBER+1);
 584 //      printk("ieee80211_softmac_scan_wq ENABLE_IPS\n");
 585 //      printk("in %s\n",__func__);
 586         down(&ieee->scan_sem);
 587
 588         do{
 589                 ieee->current_network.channel =
 590                         (ieee->current_network.channel + 1) % MAX_CHANNEL_NUMBER;
 591                 if (watchdog++ > MAX_CHANNEL_NUMBER)
 592                                 goto out; /* no good chans */
 593
 594         }while(!channel_map[ieee->current_network.channel]);
 595
 596         //printk("current_network.channel:%d\n", ieee->current_network.channel);
 597         if (ieee->scanning == 0 )
 598         {
 599                 printk("error out, scanning = 0\n");
 600                 goto out;
 601         }
 602         ieee->set_chan(ieee->dev, ieee->current_network.channel);
 603         if(channel_map[ieee->current_network.channel] == 1)
 604                 ieee80211_send_probe_requests(ieee);
 605
 606         queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq, IEEE80211_SOFTMAC_SCAN_TIME);
 607         up(&ieee->scan_sem);
 608         return;
 609 out:
 610         ieee->actscanning = false;
 611         watchdog = 0;
 612         ieee->scanning = 0;
 613         up(&ieee->scan_sem);
 614
 615         if(IS_DOT11D_ENABLE(ieee))
 616                 DOT11D_ScanComplete(ieee);
 617         return;
 618 }
 619
 620 void ieee80211_beacons_start(struct ieee80211_device *ieee)
 621 {
 622         unsigned long flags;
 623
 624         spin_lock_irqsave(&ieee->beacon_lock,flags);
 625
 626         ieee->beacon_txing = 1;
 627         ieee80211_send_beacon(ieee);
 628
 629         spin_unlock_irqrestore(&ieee->beacon_lock,flags);
 630 }
 631
 632 void ieee80211_beacons_stop(struct ieee80211_device *ieee)
 633 {
 634         unsigned long flags;
 635
 636         spin_lock_irqsave(&ieee->beacon_lock,flags);
 637
 638         ieee->beacon_txing = 0;
 639         del_timer_sync(&ieee->beacon_timer);
 640
 641         spin_unlock_irqrestore(&ieee->beacon_lock,flags);
 642
 643 }
 644
 645
 646 void ieee80211_stop_send_beacons(struct ieee80211_device *ieee)
 647 {
 648         if(ieee->stop_send_beacons)
 649                 ieee->stop_send_beacons(ieee->dev);
 650         if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
 651                 ieee80211_beacons_stop(ieee);
 652 }
 653
 654
 655 void ieee80211_start_send_beacons(struct ieee80211_device *ieee)
 656 {
 657         if(ieee->start_send_beacons)
 658                 ieee->start_send_beacons(ieee->dev);
 659         if(ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
 660                 ieee80211_beacons_start(ieee);
 661 }
 662
 663
 664 void ieee80211_softmac_stop_scan(struct ieee80211_device *ieee)
 665 {
 666 //      unsigned long flags;
 667
 668         //ieee->sync_scan_hurryup = 1;
 669
 670         down(&ieee->scan_sem);
 671 //      spin_lock_irqsave(&ieee->lock, flags);
 672
 673         if (ieee->scanning == 1){
 674                 ieee->scanning = 0;
 675                 //del_timer_sync(&ieee->scan_timer);
 676                 cancel_delayed_work(&ieee->softmac_scan_wq);
 677         }
 678
 679 //      spin_unlock_irqrestore(&ieee->lock, flags);
 680         up(&ieee->scan_sem);
 681 }
 682
 683 void ieee80211_stop_scan(struct ieee80211_device *ieee)
 684 {
 685         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN)
 686                 ieee80211_softmac_stop_scan(ieee);
 687         else
 688                 ieee->stop_scan(ieee->dev);
 689 }
 690
 691 /* called with ieee->lock held */
 692 void ieee80211_start_scan(struct ieee80211_device *ieee)
 693 {
 694         if(IS_DOT11D_ENABLE(ieee) )
 695         {
 696                 if(IS_COUNTRY_IE_VALID(ieee))
 697                 {
 698                         RESET_CIE_WATCHDOG(ieee);
 699                 }
 700         }
 701         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN){
 702                 if (ieee->scanning == 0)
 703                 {
 704                         ieee->scanning = 1;
 705                         //ieee80211_softmac_scan(ieee);
 706                 //      queue_work(ieee->wq, &ieee->softmac_scan_wq);
 707                 //care this,1203,2007,by lawrence
 708 #if 1
 709                         queue_delayed_work(ieee->wq, &ieee->softmac_scan_wq,0);
 710 #endif
 711                 }
 712         }else
 713                 ieee->start_scan(ieee->dev);
 714
 715 }
 716
 717 /* called with wx_sem held */
 718 void ieee80211_start_scan_syncro(struct ieee80211_device *ieee)
 719 {
 720         if(IS_DOT11D_ENABLE(ieee) )
 721         {
 722                 if(IS_COUNTRY_IE_VALID(ieee))
 723                 {
 724                         RESET_CIE_WATCHDOG(ieee);
 725                 }
 726         }
 727         ieee->sync_scan_hurryup = 0;
 728
 729         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN)
 730                 ieee80211_softmac_scan_syncro(ieee);
 731         else
 732                 ieee->scan_syncro(ieee->dev);
 733
 734 }
 735
 736 inline struct sk_buff *ieee80211_authentication_req(struct ieee80211_network *beacon,
 737         struct ieee80211_device *ieee, int challengelen)
 738 {
 739         struct sk_buff *skb;
 740         struct ieee80211_authentication *auth;
 741
 742         skb = dev_alloc_skb(sizeof(struct ieee80211_authentication) + challengelen);
 743
 744         if (!skb) return NULL;
 745
 746         auth = (struct ieee80211_authentication *)
 747                 skb_put(skb, sizeof(struct ieee80211_authentication));
 748
 749         auth->header.frame_ctl = IEEE80211_STYPE_AUTH;
 750         if (challengelen) auth->header.frame_ctl |= IEEE80211_FCTL_WEP;
 751
 752         auth->header.duration_id = 0x013a; //FIXME
 753
 754         memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN);
 755         memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 756         memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN);
 757
 758         auth->algorithm = ieee->open_wep ? WLAN_AUTH_OPEN : WLAN_AUTH_SHARED_KEY;
 759
 760         auth->transaction = cpu_to_le16(ieee->associate_seq);
 761         ieee->associate_seq++;
 762
 763         auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
 764
 765         return skb;
 766
 767 }
 768
 769 static struct sk_buff* ieee80211_probe_resp(struct ieee80211_device *ieee, u8 *dest)
 770 {
 771         u8 *tag;
 772         int beacon_size;
 773         struct ieee80211_probe_response *beacon_buf;
 774         struct sk_buff *skb;
 775         int encrypt;
 776         int atim_len,erp_len;
 777         struct ieee80211_crypt_data* crypt;
 778
 779         char *ssid = ieee->current_network.ssid;
 780         int ssid_len = ieee->current_network.ssid_len;
 781         int rate_len = ieee->current_network.rates_len+2;
 782         int rate_ex_len = ieee->current_network.rates_ex_len;
 783         int wpa_ie_len = ieee->wpa_ie_len;
 784         if(rate_ex_len > 0) rate_ex_len+=2;
 785
 786         if(ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
 787                 atim_len = 4;
 788         else
 789                 atim_len = 0;
 790
 791         if(ieee80211_is_54g(ieee->current_network))
 792                 erp_len = 3;
 793         else
 794                 erp_len = 0;
 795
 796         beacon_size = sizeof(struct ieee80211_probe_response)+
 797                 ssid_len
 798                 +3 //channel
 799                 +rate_len
 800                 +rate_ex_len
 801                 +atim_len
 802                 +wpa_ie_len
 803                 +erp_len;
 804
 805         skb = dev_alloc_skb(beacon_size);
 806
 807         if (!skb)
 808                 return NULL;
 809
 810         beacon_buf = (struct ieee80211_probe_response*) skb_put(skb, beacon_size);
 811
 812         memcpy (beacon_buf->header.addr1, dest,ETH_ALEN);
 813         memcpy (beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 814         memcpy (beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN);
 815
 816         beacon_buf->header.duration_id = 0; //FIXME
 817         beacon_buf->beacon_interval =
 818                 cpu_to_le16(ieee->current_network.beacon_interval);
 819         beacon_buf->capability =
 820                 cpu_to_le16(ieee->current_network.capability & WLAN_CAPABILITY_IBSS);
 821
 822         if(ieee->short_slot && (ieee->current_network.capability & WLAN_CAPABILITY_SHORT_SLOT))
 823                 cpu_to_le16((beacon_buf->capability |= WLAN_CAPABILITY_SHORT_SLOT));
 824
 825         crypt = ieee->crypt[ieee->tx_keyidx];
 826
 827         encrypt = ieee->host_encrypt && crypt && crypt->ops &&
 828                 ((0 == strcmp(crypt->ops->name, "WEP")) || wpa_ie_len);
 829
 830         if (encrypt)
 831                 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
 832
 833
 834         beacon_buf->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_PROBE_RESP);
 835
 836         beacon_buf->info_element.id = MFIE_TYPE_SSID;
 837         beacon_buf->info_element.len = ssid_len;
 838
 839         tag = (u8*) beacon_buf->info_element.data;
 840
 841         memcpy(tag, ssid, ssid_len);
 842
 843         tag += ssid_len;
 844
 845         *(tag++) = MFIE_TYPE_RATES;
 846         *(tag++) = rate_len-2;
 847         memcpy(tag,ieee->current_network.rates,rate_len-2);
 848         tag+=rate_len-2;
 849
 850         *(tag++) = MFIE_TYPE_DS_SET;
 851         *(tag++) = 1;
 852         *(tag++) = ieee->current_network.channel;
 853
 854         if(atim_len){
 855                 *(tag++) = MFIE_TYPE_IBSS_SET;
 856                 *(tag++) = 2;
 857                 *((u16*)(tag)) = cpu_to_le16(ieee->current_network.atim_window);
 858                 tag+=2;
 859         }
 860
 861         if(erp_len){
 862                 *(tag++) = MFIE_TYPE_ERP;
 863                 *(tag++) = 1;
 864                 *(tag++) = 0;
 865         }
 866
 867         if(rate_ex_len){
 868                 *(tag++) = MFIE_TYPE_RATES_EX;
 869                 *(tag++) = rate_ex_len-2;
 870                 memcpy(tag,ieee->current_network.rates_ex,rate_ex_len-2);
 871                 tag+=rate_ex_len-2;
 872         }
 873
 874         if (wpa_ie_len)
 875         {
 876                 if (ieee->iw_mode == IW_MODE_ADHOC)
 877                 {//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
 878                         memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
 879                 }
 880
 881                 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
 882         }
 883
 884         skb->dev = ieee->dev;
 885         return skb;
 886 }
 887
 888 struct sk_buff* ieee80211_assoc_resp(struct ieee80211_device *ieee, u8 *dest)
 889 {
 890         struct sk_buff *skb;
 891         u8* tag;
 892
 893         struct ieee80211_crypt_data* crypt;
 894         struct ieee80211_assoc_response_frame *assoc;
 895         short encrypt;
 896
 897         unsigned int rate_len = ieee80211_MFIE_rate_len(ieee);
 898         int len = sizeof(struct ieee80211_assoc_response_frame) + rate_len;
 899
 900         skb = dev_alloc_skb(len);
 901
 902         if (!skb)
 903                 return NULL;
 904
 905         assoc = (struct ieee80211_assoc_response_frame *)
 906                 skb_put(skb,sizeof(struct ieee80211_assoc_response_frame));
 907
 908         assoc->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_ASSOC_RESP);
 909         memcpy(assoc->header.addr1, dest,ETH_ALEN);
 910         memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
 911         memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 912         assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
 913                 WLAN_CAPABILITY_BSS : WLAN_CAPABILITY_IBSS);
 914
 915
 916         if(ieee->short_slot)
 917                 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
 918
 919         if (ieee->host_encrypt)
 920                 crypt = ieee->crypt[ieee->tx_keyidx];
 921         else crypt = NULL;
 922
 923         encrypt = ( crypt && crypt->ops);
 924
 925         if (encrypt)
 926                 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
 927
 928         assoc->status = 0;
 929         assoc->aid = cpu_to_le16(ieee->assoc_id);
 930         if (ieee->assoc_id == 0x2007) ieee->assoc_id=0;
 931         else ieee->assoc_id++;
 932
 933         tag = (u8*) skb_put(skb, rate_len);
 934
 935         ieee80211_MFIE_Brate(ieee, &tag);
 936         ieee80211_MFIE_Grate(ieee, &tag);
 937
 938         return skb;
 939 }
 940
 941 struct sk_buff* ieee80211_auth_resp(struct ieee80211_device *ieee,int status, u8 *dest)
 942 {
 943         struct sk_buff *skb;
 944         struct ieee80211_authentication *auth;
 945
 946         skb = dev_alloc_skb(sizeof(struct ieee80211_authentication)+1);
 947
 948         if (!skb)
 949                 return NULL;
 950
 951         skb->len = sizeof(struct ieee80211_authentication);
 952
 953         auth = (struct ieee80211_authentication *)skb->data;
 954
 955         auth->status = cpu_to_le16(status);
 956         auth->transaction = cpu_to_le16(2);
 957         auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
 958
 959         memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
 960         memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 961         memcpy(auth->header.addr1, dest, ETH_ALEN);
 962         auth->header.frame_ctl = cpu_to_le16(IEEE80211_STYPE_AUTH);
 963         return skb;
 964
 965
 966 }
 967
 968 struct sk_buff* ieee80211_null_func(struct ieee80211_device *ieee,short pwr)
 969 {
 970         struct sk_buff *skb;
 971         struct ieee80211_hdr_3addr* hdr;
 972
 973         skb = dev_alloc_skb(sizeof(struct ieee80211_hdr_3addr));
 974
 975         if (!skb)
 976                 return NULL;
 977
 978         hdr = (struct ieee80211_hdr_3addr*)skb_put(skb,sizeof(struct ieee80211_hdr_3addr));
 979
 980         memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN);
 981         memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN);
 982         memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN);
 983
 984         hdr->frame_ctl = cpu_to_le16(IEEE80211_FTYPE_DATA |
 985                 IEEE80211_STYPE_NULLFUNC | IEEE80211_FCTL_TODS |
 986                 (pwr ? IEEE80211_FCTL_PM:0));
 987
 988         return skb;
 989
 990
 991 }
 992
 993
 994 void ieee80211_resp_to_assoc_rq(struct ieee80211_device *ieee, u8* dest)
 995 {
 996         struct sk_buff *buf = ieee80211_assoc_resp(ieee, dest);
 997
 998         if (buf){
 999                 softmac_mgmt_xmit(buf, ieee);
1000                 dev_kfree_skb_any(buf);//edit by thomas
1001         }
1002 }
1003
1004
1005 void ieee80211_resp_to_auth(struct ieee80211_device *ieee, int s, u8* dest)
1006 {
1007         struct sk_buff *buf = ieee80211_auth_resp(ieee, s, dest);
1008
1009         if (buf){
1010                 softmac_mgmt_xmit(buf, ieee);
1011                 dev_kfree_skb_any(buf);//edit by thomas
1012         }
1013 }
1014
1015
1016 void ieee80211_resp_to_probe(struct ieee80211_device *ieee, u8 *dest)
1017 {
1018
1019         struct sk_buff *buf = ieee80211_probe_resp(ieee, dest);
1020
1021         if (buf) {
1022                 softmac_mgmt_xmit(buf, ieee);
1023                 dev_kfree_skb_any(buf);//edit by thomas
1024         }
1025 }
1026
1027
1028 inline struct sk_buff *ieee80211_association_req(struct ieee80211_network *beacon,struct ieee80211_device *ieee)
1029 {
1030         struct sk_buff *skb;
1031         //unsigned long flags;
1032
1033         struct ieee80211_assoc_request_frame *hdr;
1034         u8 *tag;
1035         //short info_addr = 0;
1036         //int i;
1037         //u16 suite_count = 0;
1038         //u8 suit_select = 0;
1039         unsigned int wpa_len = beacon->wpa_ie_len;
1040         //struct net_device *dev = ieee->dev;
1041         //union iwreq_data wrqu;
1042         //u8 *buff;
1043         //u8 *p;
1044 #if 1
1045         // for testing purpose
1046         unsigned int rsn_len = beacon->rsn_ie_len;
1047 #else
1048         unsigned int rsn_len = beacon->rsn_ie_len - 4;
1049 #endif
1050         unsigned int rate_len = ieee80211_MFIE_rate_len(ieee);
1051         unsigned int wmm_info_len = beacon->QoS_Enable?9:0;
1052         unsigned int turbo_info_len = beacon->Turbo_Enable?9:0;
1053
1054         u8  encry_proto = ieee->wpax_type_notify & 0xff;
1055         //u8  pairwise_type = (ieee->wpax_type_notify >> 8) & 0xff;
1056         //u8  authen_type = (ieee->wpax_type_notify >> 16) & 0xff;
1057
1058         int len = 0;
1059
1060         //[0] Notify type of encryption: WPA/WPA2
1061         //[1] pair wise type
1062         //[2] authen type
1063         if(ieee->wpax_type_set) {
1064                 if (IEEE_PROTO_WPA == encry_proto) {
1065                         rsn_len = 0;
1066                 } else if (IEEE_PROTO_RSN == encry_proto) {
1067                         wpa_len = 0;
1068                 }
1069         }
1070         len = sizeof(struct ieee80211_assoc_request_frame)+
1071                 + beacon->ssid_len//essid tagged val
1072                 + rate_len//rates tagged val
1073                 + wpa_len
1074                 + rsn_len
1075                 + wmm_info_len
1076                 + turbo_info_len;
1077
1078         skb = dev_alloc_skb(len);
1079
1080         if (!skb)
1081                 return NULL;
1082
1083         hdr = (struct ieee80211_assoc_request_frame *)
1084                 skb_put(skb, sizeof(struct ieee80211_assoc_request_frame));
1085
1086
1087         hdr->header.frame_ctl = IEEE80211_STYPE_ASSOC_REQ;
1088         hdr->header.duration_id= 37; //FIXME
1089         memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN);
1090         memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1091         memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN);
1092         memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);//for HW security, John
1093
1094         hdr->capability = cpu_to_le16(WLAN_CAPABILITY_BSS);
1095         if (beacon->capability & WLAN_CAPABILITY_PRIVACY )
1096                 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1097         if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1098                 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1099
1100         if(ieee->short_slot)
1101                 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT);
1102
1103         hdr->listen_interval = 0xa; //FIXME
1104
1105         hdr->info_element.id = MFIE_TYPE_SSID;
1106
1107         hdr->info_element.len = beacon->ssid_len;
1108         tag = skb_put(skb, beacon->ssid_len);
1109         memcpy(tag, beacon->ssid, beacon->ssid_len);
1110
1111         tag = skb_put(skb, rate_len);
1112
1113         ieee80211_MFIE_Brate(ieee, &tag);
1114         ieee80211_MFIE_Grate(ieee, &tag);
1115
1116         //add rsn==0 condition for ap's mix security mode(wpa+wpa2), john2007.8.9
1117         //choose AES encryption as default algorithm while using mixed mode
1118
1119         tag = skb_put(skb,ieee->wpa_ie_len);
1120         memcpy(tag,ieee->wpa_ie,ieee->wpa_ie_len);
1121
1122         tag = skb_put(skb,wmm_info_len);
1123         if(wmm_info_len) {
1124           ieee80211_WMM_Info(ieee, &tag);
1125         }
1126         tag = skb_put(skb,turbo_info_len);
1127         if(turbo_info_len) {
1128                 ieee80211_TURBO_Info(ieee, &tag);
1129         }
1130
1131         return skb;
1132 }
1133
1134 void ieee80211_associate_abort(struct ieee80211_device *ieee)
1135 {
1136
1137         unsigned long flags;
1138         spin_lock_irqsave(&ieee->lock, flags);
1139
1140         ieee->associate_seq++;
1141
1142         /* don't scan, and avoid to have the RX path possibily
1143          * try again to associate. Even do not react to AUTH or
1144          * ASSOC response. Just wait for the retry wq to be scheduled.
1145          * Here we will check if there are good nets to associate
1146          * with, so we retry or just get back to NO_LINK and scanning
1147          */
1148         if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING){
1149                 IEEE80211_DEBUG_MGMT("Authentication failed\n");
1150                 ieee->softmac_stats.no_auth_rs++;
1151         }else{
1152                 IEEE80211_DEBUG_MGMT("Association failed\n");
1153                 ieee->softmac_stats.no_ass_rs++;
1154         }
1155
1156         ieee->state = IEEE80211_ASSOCIATING_RETRY;
1157
1158         queue_delayed_work(ieee->wq, &ieee->associate_retry_wq,IEEE80211_SOFTMAC_ASSOC_RETRY_TIME);
1159
1160         spin_unlock_irqrestore(&ieee->lock, flags);
1161 }
1162
1163 void ieee80211_associate_abort_cb(unsigned long dev)
1164 {
1165         ieee80211_associate_abort((struct ieee80211_device *) dev);
1166 }
1167
1168
1169 void ieee80211_associate_step1(struct ieee80211_device *ieee)
1170 {
1171         struct ieee80211_network *beacon = &ieee->current_network;
1172         struct sk_buff *skb;
1173
1174         IEEE80211_DEBUG_MGMT("Stopping scan\n");
1175         ieee->softmac_stats.tx_auth_rq++;
1176         skb=ieee80211_authentication_req(beacon, ieee, 0);
1177         if (!skb){
1178
1179                 ieee80211_associate_abort(ieee);
1180         }
1181         else{
1182                 ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATING ;
1183                 IEEE80211_DEBUG_MGMT("Sending authentication request\n");
1184                 //printk("---Sending authentication request\n");
1185                 softmac_mgmt_xmit(skb, ieee);
1186                 //BUGON when you try to add_timer twice, using mod_timer may be better, john0709
1187                 if(!timer_pending(&ieee->associate_timer)){
1188                         ieee->associate_timer.expires = jiffies + (HZ / 2);
1189                         add_timer(&ieee->associate_timer);
1190                 }
1191                 //If call dev_kfree_skb_any,a warning will ocur....
1192                 //KERNEL: assertion (!atomic_read(&skb->users)) failed at net/core/dev.c (1708)
1193                 //So ... 1204 by lawrence.
1194                 //printk("\nIn %s,line %d call kfree skb.",__func__,__LINE__);
1195                 //dev_kfree_skb_any(skb);//edit by thomas
1196         }
1197 }
1198
1199 void ieee80211_auth_challenge(struct ieee80211_device *ieee, u8 *challenge, int chlen)
1200 {
1201         u8 *c;
1202         struct sk_buff *skb;
1203         struct ieee80211_network *beacon = &ieee->current_network;
1204 //      int hlen = sizeof(struct ieee80211_authentication);
1205         del_timer_sync(&ieee->associate_timer);
1206         ieee->associate_seq++;
1207         ieee->softmac_stats.tx_auth_rq++;
1208
1209         skb = ieee80211_authentication_req(beacon, ieee, chlen+2);
1210         if (!skb)
1211                 ieee80211_associate_abort(ieee);
1212         else{
1213                 c = skb_put(skb, chlen+2);
1214                 *(c++) = MFIE_TYPE_CHALLENGE;
1215                 *(c++) = chlen;
1216                 memcpy(c, challenge, chlen);
1217
1218                 IEEE80211_DEBUG_MGMT("Sending authentication challenge response\n");
1219
1220                 ieee80211_encrypt_fragment(ieee, skb, sizeof(struct ieee80211_hdr_3addr  ));
1221
1222                 softmac_mgmt_xmit(skb, ieee);
1223                 if (!timer_pending(&ieee->associate_timer)){
1224                 //printk("=========>add timer again, to crash\n");
1225                 ieee->associate_timer.expires = jiffies + (HZ / 2);
1226                 add_timer(&ieee->associate_timer);
1227                 }
1228                 dev_kfree_skb_any(skb);//edit by thomas
1229         }
1230         kfree(challenge);
1231 }
1232
1233 void ieee80211_associate_step2(struct ieee80211_device *ieee)
1234 {
1235         struct sk_buff* skb;
1236         struct ieee80211_network *beacon = &ieee->current_network;
1237
1238         del_timer_sync(&ieee->associate_timer);
1239
1240         IEEE80211_DEBUG_MGMT("Sending association request\n");
1241         ieee->softmac_stats.tx_ass_rq++;
1242         skb=ieee80211_association_req(beacon, ieee);
1243         if (!skb)
1244                 ieee80211_associate_abort(ieee);
1245         else{
1246                 softmac_mgmt_xmit(skb, ieee);
1247                 if (!timer_pending(&ieee->associate_timer)){
1248                 ieee->associate_timer.expires = jiffies + (HZ / 2);
1249                 add_timer(&ieee->associate_timer);
1250                 }
1251                 //dev_kfree_skb_any(skb);//edit by thomas
1252         }
1253 }
1254
1255 void ieee80211_associate_complete_wq(struct work_struct *work)
1256 {
1257         struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_complete_wq);
1258
1259         printk(KERN_INFO "Associated successfully\n");
1260         if(ieee80211_is_54g(ieee->current_network) &&
1261                 (ieee->modulation & IEEE80211_OFDM_MODULATION)){
1262
1263                 ieee->rate = 540;
1264                 printk(KERN_INFO"Using G rates\n");
1265         }else{
1266                 ieee->rate = 110;
1267                 printk(KERN_INFO"Using B rates\n");
1268         }
1269         ieee->link_change(ieee->dev);
1270         notify_wx_assoc_event(ieee);
1271         if (ieee->data_hard_resume)
1272                 ieee->data_hard_resume(ieee->dev);
1273         netif_carrier_on(ieee->dev);
1274 }
1275
1276 void ieee80211_associate_complete(struct ieee80211_device *ieee)
1277 {
1278         int i;
1279         del_timer_sync(&ieee->associate_timer);
1280
1281         for(i = 0; i < 6; i++) {
1282           //ieee->seq_ctrl[i] = 0;
1283         }
1284         ieee->state = IEEE80211_LINKED;
1285         IEEE80211_DEBUG_MGMT("Successfully associated\n");
1286
1287         queue_work(ieee->wq, &ieee->associate_complete_wq);
1288 }
1289
1290 void ieee80211_associate_procedure_wq(struct work_struct *work)
1291 {
1292         struct ieee80211_device *ieee = container_of(work, struct ieee80211_device, associate_procedure_wq);
1293
1294         ieee->sync_scan_hurryup = 1;
1295         down(&ieee->wx_sem);
1296
1297         if (ieee->data_hard_stop)
1298                 ieee->data_hard_stop(ieee->dev);
1299
1300         ieee80211_stop_scan(ieee);
1301         ieee->set_chan(ieee->dev, ieee->current_network.channel);
1302
1303         ieee->associate_seq = 1;
1304         ieee80211_associate_step1(ieee);
1305
1306         up(&ieee->wx_sem);
1307 }
1308
1309 inline void ieee80211_softmac_new_net(struct ieee80211_device *ieee, struct ieee80211_network *net)
1310 {
1311         u8 tmp_ssid[IW_ESSID_MAX_SIZE+1];
1312         int tmp_ssid_len = 0;
1313
1314         short apset,ssidset,ssidbroad,apmatch,ssidmatch;
1315
1316         /* we are interested in new new only if we are not associated
1317          * and we are not associating / authenticating
1318          */
1319         if (ieee->state != IEEE80211_NOLINK)
1320                 return;
1321
1322         if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability & WLAN_CAPABILITY_BSS))
1323                 return;
1324
1325         if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability & WLAN_CAPABILITY_IBSS))
1326                 return;
1327
1328
1329         if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC){
1330                 /* if the user specified the AP MAC, we need also the essid
1331                  * This could be obtained by beacons or, if the network does not
1332                  * broadcast it, it can be put manually.
1333                  */
1334                 apset = ieee->wap_set;//(memcmp(ieee->current_network.bssid, zero,ETH_ALEN)!=0 );
1335                 ssidset = ieee->ssid_set;//ieee->current_network.ssid[0] != '\0';
1336                 ssidbroad =  !(net->ssid_len == 0 || net->ssid[0]== '\0');
1337                 apmatch = (memcmp(ieee->current_network.bssid, net->bssid, ETH_ALEN)==0);
1338
1339                 if(ieee->current_network.ssid_len != net->ssid_len)
1340                         ssidmatch = 0;
1341                 else
1342                         ssidmatch = (0==strncmp(ieee->current_network.ssid, net->ssid, net->ssid_len));
1343
1344                 //printk("cur: %s, %d, net:%s, %d\n", ieee->current_network.ssid, ieee->current_network.ssid_len, net->ssid, net->ssid_len);
1345                 //printk("apset=%d apmatch=%d ssidset=%d ssidbroad=%d ssidmatch=%d\n",apset,apmatch,ssidset,ssidbroad,ssidmatch);
1346
1347                 if (    /* if the user set the AP check if match.
1348                          * if the network does not broadcast essid we check the user supplyed ANY essid
1349                          * if the network does broadcast and the user does not set essid it is OK
1350                          * if the network does broadcast and the user did set essid chech if essid match
1351                          */
1352                                 ( apset && apmatch &&
1353                                   ((ssidset && ssidbroad && ssidmatch) || (ssidbroad && !ssidset) || (!ssidbroad && ssidset)) ) ||
1354                                 /* if the ap is not set, check that the user set the bssid
1355                                  * and the network does bradcast and that those two bssid matches
1356                                  */
1357                                 (!apset && ssidset && ssidbroad && ssidmatch)
1358                    ){
1359
1360
1361                         /* if the essid is hidden replace it with the
1362                          * essid provided by the user.
1363                          */
1364                         if (!ssidbroad){
1365                                 strncpy(tmp_ssid, ieee->current_network.ssid, IW_ESSID_MAX_SIZE);
1366                                 tmp_ssid_len = ieee->current_network.ssid_len;
1367                         }
1368                         memcpy(&ieee->current_network, net, sizeof(struct ieee80211_network));
1369
1370                         if (!ssidbroad){
1371                                 strncpy(ieee->current_network.ssid, tmp_ssid, IW_ESSID_MAX_SIZE);
1372                                 ieee->current_network.ssid_len = tmp_ssid_len;
1373                         }
1374                         printk(KERN_INFO"Linking with %s: channel is %d\n",ieee->current_network.ssid,ieee->current_network.channel);
1375
1376                         if (ieee->iw_mode == IW_MODE_INFRA){
1377                                 ieee->state = IEEE80211_ASSOCIATING;
1378                                 ieee->beinretry = false;
1379                                 queue_work(ieee->wq, &ieee->associate_procedure_wq);
1380                         }else{
1381                                 if(ieee80211_is_54g(ieee->current_network) &&
1382                                                 (ieee->modulation & IEEE80211_OFDM_MODULATION)){
1383                                         ieee->rate = 540;
1384                                         printk(KERN_INFO"Using G rates\n");
1385                                 }else{
1386                                         ieee->rate = 110;
1387                                         printk(KERN_INFO"Using B rates\n");
1388                                 }
1389                                 ieee->state = IEEE80211_LINKED;
1390                                 ieee->beinretry = false;
1391                         }
1392
1393                 }
1394         }
1395
1396 }
1397
1398 void ieee80211_softmac_check_all_nets(struct ieee80211_device *ieee)
1399 {
1400         unsigned long flags;
1401         struct ieee80211_network *target;
1402
1403         spin_lock_irqsave(&ieee->lock, flags);
1404         list_for_each_entry(target, &ieee->network_list, list) {
1405
1406                 /* if the state become different that NOLINK means
1407                  * we had found what we are searching for
1408                  */
1409
1410                 if (ieee->state != IEEE80211_NOLINK)
1411                         break;
1412
1413                 if (ieee->scan_age == 0 || time_after(target->last_scanned + ieee->scan_age, jiffies))
1414                         ieee80211_softmac_new_net(ieee, target);
1415         }
1416
1417         spin_unlock_irqrestore(&ieee->lock, flags);
1418
1419 }
1420
1421
1422 static inline u16 auth_parse(struct sk_buff *skb, u8** challenge, int *chlen)
1423 {
1424         struct ieee80211_authentication *a;
1425         u8 *t;
1426         if (skb->len <  (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
1427                 IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n",skb->len);
1428                 return 0xcafe;
1429         }
1430         *challenge = NULL;
1431         a = (struct ieee80211_authentication*) skb->data;
1432         if(skb->len > (sizeof(struct ieee80211_authentication) +3)){
1433                 t = skb->data + sizeof(struct ieee80211_authentication);
1434
1435                 if(*(t++) == MFIE_TYPE_CHALLENGE){
1436                         *chlen = *(t++);
1437                         *challenge = (u8*)kmalloc(*chlen, GFP_ATOMIC);
1438                         memcpy(*challenge, t, *chlen);
1439                 }
1440         }
1441
1442         return cpu_to_le16(a->status);
1443
1444 }
1445
1446
1447 int auth_rq_parse(struct sk_buff *skb,u8* dest)
1448 {
1449         struct ieee80211_authentication *a;
1450
1451         if (skb->len <  (sizeof(struct ieee80211_authentication)-sizeof(struct ieee80211_info_element))){
1452                 IEEE80211_DEBUG_MGMT("invalid len in auth request: %d\n",skb->len);
1453                 return -1;
1454         }
1455         a = (struct ieee80211_authentication*) skb->data;
1456
1457         memcpy(dest,a->header.addr2, ETH_ALEN);
1458
1459         if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1460                 return  WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1461
1462         return WLAN_STATUS_SUCCESS;
1463 }
1464
1465 static short probe_rq_parse(struct ieee80211_device *ieee, struct sk_buff *skb, u8 *src)
1466 {
1467         u8 *tag;
1468         u8 *skbend;
1469         u8 *ssid=NULL;
1470         u8 ssidlen = 0;
1471
1472         struct ieee80211_hdr_3addr   *header =
1473                 (struct ieee80211_hdr_3addr   *) skb->data;
1474
1475         if (skb->len < sizeof (struct ieee80211_hdr_3addr  ))
1476                 return -1; /* corrupted */
1477
1478         memcpy(src,header->addr2, ETH_ALEN);
1479
1480         skbend = (u8*)skb->data + skb->len;
1481
1482         tag = skb->data + sizeof (struct ieee80211_hdr_3addr  );
1483
1484         while (tag+1 < skbend){
1485                 if (*tag == 0){
1486                         ssid = tag+2;
1487                         ssidlen = *(tag+1);
1488                         break;
1489                 }
1490                 tag++; /* point to the len field */
1491                 tag = tag + *(tag); /* point to the last data byte of the tag */
1492                 tag++; /* point to the next tag */
1493         }
1494
1495         //IEEE80211DMESG("Card MAC address is "MACSTR, MAC2STR(src));
1496         if (ssidlen == 0) return 1;
1497
1498         if (!ssid) return 1; /* ssid not found in tagged param */
1499         return (!strncmp(ssid, ieee->current_network.ssid, ssidlen));
1500
1501 }
1502
1503 int assoc_rq_parse(struct sk_buff *skb,u8* dest)
1504 {
1505         struct ieee80211_assoc_request_frame *a;
1506
1507         if (skb->len < (sizeof(struct ieee80211_assoc_request_frame) -
1508                 sizeof(struct ieee80211_info_element))) {
1509
1510                 IEEE80211_DEBUG_MGMT("invalid len in auth request:%d \n", skb->len);
1511                 return -1;
1512         }
1513
1514         a = (struct ieee80211_assoc_request_frame*) skb->data;
1515
1516         memcpy(dest,a->header.addr2,ETH_ALEN);
1517
1518         return 0;
1519 }
1520
1521 static inline u16 assoc_parse(struct sk_buff *skb, int *aid)
1522 {
1523         struct ieee80211_assoc_response_frame *a;
1524         if (skb->len <  sizeof(struct ieee80211_assoc_response_frame)){
1525                 IEEE80211_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
1526                 return 0xcafe;
1527         }
1528
1529         a = (struct ieee80211_assoc_response_frame*) skb->data;
1530         *aid = le16_to_cpu(a->aid) & 0x3fff;
1531         return le16_to_cpu(a->status);
1532 }
1533
1534 static inline void
1535 ieee80211_rx_probe_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
1536 {
1537         u8 dest[ETH_ALEN];
1538
1539         //IEEE80211DMESG("Rx probe");
1540         ieee->softmac_stats.rx_probe_rq++;
1541         //DMESG("Dest is "MACSTR, MAC2STR(dest));
1542         if (probe_rq_parse(ieee, skb, dest)){
1543                 //IEEE80211DMESG("Was for me!");
1544                 ieee->softmac_stats.tx_probe_rs++;
1545                 ieee80211_resp_to_probe(ieee, dest);
1546         }
1547 }
1548
1549 inline void
1550 ieee80211_rx_auth_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
1551 {
1552         u8 dest[ETH_ALEN];
1553         int status;
1554         //IEEE80211DMESG("Rx probe");
1555         ieee->softmac_stats.rx_auth_rq++;
1556
1557         if ((status = auth_rq_parse(skb, dest))!= -1){
1558                 ieee80211_resp_to_auth(ieee, status, dest);
1559         }
1560         //DMESG("Dest is "MACSTR, MAC2STR(dest));
1561
1562 }
1563
1564  inline void
1565 ieee80211_rx_assoc_rq(struct ieee80211_device *ieee, struct sk_buff *skb)
1566 {
1567
1568         u8 dest[ETH_ALEN];
1569         //unsigned long flags;
1570
1571         ieee->softmac_stats.rx_ass_rq++;
1572         if (assoc_rq_parse(skb,dest) != -1){
1573                 ieee80211_resp_to_assoc_rq(ieee, dest);
1574         }
1575
1576         printk(KERN_INFO"New client associated: "MAC_FMT"\n", MAC_ARG(dest));
1577 }
1578
1579
1580
1581 void ieee80211_sta_ps_send_null_frame(struct ieee80211_device *ieee, short pwr)
1582 {
1583
1584         struct sk_buff *buf = ieee80211_null_func(ieee, pwr);
1585
1586         if (buf)
1587                 softmac_ps_mgmt_xmit(buf, ieee);
1588
1589 }
1590
1591
1592 short ieee80211_sta_ps_sleep(struct ieee80211_device *ieee, u32 *time_h, u32 *time_l)
1593 {
1594         int timeout = 0;
1595
1596         u8 dtim;
1597         /*if(ieee->ps == IEEE80211_PS_DISABLED ||
1598                 ieee->iw_mode != IW_MODE_INFRA ||
1599                 ieee->state != IEEE80211_LINKED)
1600
1601                 return 0;
1602         */
1603         dtim = ieee->current_network.dtim_data;
1604         //printk("DTIM\n");
1605
1606         if(!(dtim & IEEE80211_DTIM_VALID))
1607                 return 0;
1608         else
1609                 timeout = ieee->current_network.beacon_interval;
1610
1611         //printk("VALID\n");
1612         ieee->current_network.dtim_data = IEEE80211_DTIM_INVALID;
1613
1614         if(dtim & ((IEEE80211_DTIM_UCAST | IEEE80211_DTIM_MBCAST)& ieee->ps))
1615                 return 2;
1616
1617         if(!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout)))
1618                 return 0;
1619
1620         if(!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout)))
1621                 return 0;
1622
1623         if((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE ) &&
1624                 (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
1625                 return 0;
1626
1627         if(time_l){
1628                 *time_l = ieee->current_network.last_dtim_sta_time[0]
1629                         + MSECS((ieee->current_network.beacon_interval));
1630                         //* ieee->current_network.dtim_period));
1631                         //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);
1632         }
1633
1634         if(time_h){
1635                 *time_h = ieee->current_network.last_dtim_sta_time[1];
1636                 if(time_l && *time_l < ieee->current_network.last_dtim_sta_time[0])
1637                         *time_h += 1;
1638         }
1639
1640         return 1;
1641
1642
1643 }
1644
1645 inline void ieee80211_sta_ps(struct ieee80211_device *ieee)
1646 {
1647
1648         u32 th,tl;
1649         short sleep;
1650
1651         unsigned long flags,flags2;
1652
1653         spin_lock_irqsave(&ieee->lock, flags);
1654
1655         if((ieee->ps == IEEE80211_PS_DISABLED ||
1656
1657                 ieee->iw_mode != IW_MODE_INFRA ||
1658                 ieee->state != IEEE80211_LINKED)){
1659
1660                 //#warning CHECK_LOCK_HERE
1661                 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1662
1663                 ieee80211_sta_wakeup(ieee, 1);
1664
1665                 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1666         }
1667
1668         sleep = ieee80211_sta_ps_sleep(ieee,&th, &tl);
1669 //      printk("===>%s,%d[2 wake, 1 sleep, 0 do nothing], ieee->sta_sleep = %d\n",__func__, sleep,ieee->sta_sleep);
1670         /* 2 wake, 1 sleep, 0 do nothing */
1671         if(sleep == 0)
1672                 goto out;
1673
1674         if(sleep == 1){
1675
1676                 if(ieee->sta_sleep == 1)
1677                         ieee->enter_sleep_state(ieee->dev,th,tl);
1678
1679                 else if(ieee->sta_sleep == 0){
1680         //              printk("send null 1\n");
1681                         spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1682
1683                         if(ieee->ps_is_queue_empty(ieee->dev)){
1684
1685
1686                                 ieee->sta_sleep = 2;
1687
1688                                 ieee->ps_request_tx_ack(ieee->dev);
1689
1690                                 ieee80211_sta_ps_send_null_frame(ieee,1);
1691
1692                                 ieee->ps_th = th;
1693                                 ieee->ps_tl = tl;
1694                         }
1695                         spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1696
1697                 }
1698
1699
1700         }else if(sleep == 2){
1701 //#warning CHECK_LOCK_HERE
1702                 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1703
1704         //      printk("send wakeup packet\n");
1705                 ieee80211_sta_wakeup(ieee,1);
1706
1707                 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1708         }
1709
1710 out:
1711         spin_unlock_irqrestore(&ieee->lock, flags);
1712
1713 }
1714
1715 void ieee80211_sta_wakeup(struct ieee80211_device *ieee, short nl)
1716 {
1717         if(ieee->sta_sleep == 0){
1718                 if(nl){
1719                 //      printk("Warning: driver is probably failing to report TX ps error\n");
1720                         ieee->ps_request_tx_ack(ieee->dev);
1721                         ieee80211_sta_ps_send_null_frame(ieee, 0);
1722                 }
1723                 return;
1724
1725         }
1726
1727         if(ieee->sta_sleep == 1)
1728                 ieee->sta_wake_up(ieee->dev);
1729
1730         ieee->sta_sleep = 0;
1731
1732         if(nl){
1733                 ieee->ps_request_tx_ack(ieee->dev);
1734                 ieee80211_sta_ps_send_null_frame(ieee, 0);
1735         }
1736 }
1737
1738 void ieee80211_ps_tx_ack(struct ieee80211_device *ieee, short success)
1739 {
1740         unsigned long flags,flags2;
1741
1742         spin_lock_irqsave(&ieee->lock, flags);
1743         if(ieee->sta_sleep == 2){
1744                 /* Null frame with PS bit set */
1745                 if(success){
1746
1747                 //      printk("==================> %s::enter sleep state\n",__func__);
1748                         ieee->sta_sleep = 1;
1749                         ieee->enter_sleep_state(ieee->dev,ieee->ps_th,ieee->ps_tl);
1750                 }
1751                 /* if the card report not success we can't be sure the AP
1752                  * has not RXed so we can't assume the AP believe us awake
1753                  */
1754         }
1755         /* 21112005 - tx again null without PS bit if lost */
1756         else {
1757
1758                 if((ieee->sta_sleep == 0) && !success){
1759                         spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
1760                         ieee80211_sta_ps_send_null_frame(ieee, 0);
1761                         spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
1762                 }
1763         }
1764         spin_unlock_irqrestore(&ieee->lock, flags);
1765 }
1766
1767 inline int
1768 ieee80211_rx_frame_softmac(struct ieee80211_device *ieee, struct sk_buff *skb,
1769                         struct ieee80211_rx_stats *rx_stats, u16 type,
1770                         u16 stype)
1771 {
1772         struct ieee80211_hdr_3addr *header = (struct ieee80211_hdr_3addr *) skb->data;
1773         u16 errcode;
1774         u8* challenge=NULL;
1775         int chlen=0;
1776         int aid=0;
1777         struct ieee80211_assoc_response_frame *assoc_resp;
1778         struct ieee80211_info_element *info_element;
1779
1780         if(!ieee->proto_started)
1781                 return 0;
1782
1783         if(ieee->sta_sleep || (ieee->ps != IEEE80211_PS_DISABLED &&
1784                 ieee->iw_mode == IW_MODE_INFRA &&
1785                 ieee->state == IEEE80211_LINKED))
1786
1787                 tasklet_schedule(&ieee->ps_task);
1788
1789         if(WLAN_FC_GET_STYPE(header->frame_ctl) != IEEE80211_STYPE_PROBE_RESP &&
1790                 WLAN_FC_GET_STYPE(header->frame_ctl) != IEEE80211_STYPE_BEACON)
1791                 ieee->last_rx_ps_time = jiffies;
1792
1793         switch (WLAN_FC_GET_STYPE(header->frame_ctl)) {
1794
1795                 case IEEE80211_STYPE_ASSOC_RESP:
1796                 case IEEE80211_STYPE_REASSOC_RESP:
1797
1798                         IEEE80211_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
1799                                         WLAN_FC_GET_STYPE(header->frame_ctl));
1800                         if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
1801                                 ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATED &&
1802                                 ieee->iw_mode == IW_MODE_INFRA){
1803                                 if (0 == (errcode=assoc_parse(skb, &aid))){
1804                                         u16 left;
1805
1806                                         ieee->state=IEEE80211_LINKED;
1807                                         ieee->assoc_id = aid;
1808                                         ieee->softmac_stats.rx_ass_ok++;
1809
1810                                         //printk(KERN_WARNING "nic_type = %s", (rx_stats->nic_type == 1)?"rtl8187":"rtl8187B");
1811                                         if(1 == rx_stats->nic_type) //card type is 8187
1812                                         {
1813                                                 goto associate_complete;
1814                                         }
1815                                         assoc_resp = (struct ieee80211_assoc_response_frame*)skb->data;
1816                                         info_element =  &assoc_resp->info_element;
1817                                         left = skb->len - ((void*)info_element - (void*)assoc_resp);
1818
1819                                         while (left >= sizeof(struct ieee80211_info_element_hdr)) {
1820                                                 if (sizeof(struct ieee80211_info_element_hdr) + info_element->len > left) {
1821                                                         printk(KERN_WARNING "[re]associate reeponse error!");
1822                                                         return 1;
1823                                                 }
1824                                                 switch (info_element->id) {
1825                                                   case MFIE_TYPE_GENERIC:
1826                                                          IEEE80211_DEBUG_SCAN("MFIE_TYPE_GENERIC: %d bytes\n", info_element->len);
1827                                                         if (info_element->len >= 8  &&
1828                                                             info_element->data[0] == 0x00 &&
1829                                                             info_element->data[1] == 0x50 &&
1830                                                             info_element->data[2] == 0xf2 &&
1831                                                             info_element->data[3] == 0x02 &&
1832                                                             info_element->data[4] == 0x01) {
1833                                                             // Not care about version at present.
1834                                                             //WMM Parameter Element
1835                                                             memcpy(ieee->current_network.wmm_param,(u8*)(info_element->data\
1836                                                                                     + 8),(info_element->len - 8));
1837
1838                                                             if (((ieee->current_network.wmm_info^info_element->data[6])& \
1839                                                                                     0x0f)||(!ieee->init_wmmparam_flag)) {
1840                                                               //refresh paramete element for current network
1841                                                               // update the register parameter for hardware
1842                                                               ieee->init_wmmparam_flag = 1;
1843                                                               queue_work(ieee->wq, &ieee->wmm_param_update_wq);
1844
1845                                                             }
1846                                                             //update info_element for current network
1847                                                             ieee->current_network.wmm_info  = info_element->data[6];
1848                                                         }
1849                                                         break;
1850                                                   default:
1851                                                         //nothing to do at present!!!
1852                                                         break;
1853                                                 }
1854
1855                                                 left -= sizeof(struct ieee80211_info_element_hdr) +
1856                                                         info_element->len;
1857                                                 info_element = (struct ieee80211_info_element *)
1858                                                         &info_element->data[info_element->len];
1859                                         }
1860                                         if(!ieee->init_wmmparam_flag) //legacy AP, reset the AC_xx_param register
1861                                         {
1862                                                 queue_work(ieee->wq,&ieee->wmm_param_update_wq);
1863                                                 ieee->init_wmmparam_flag = 1;//indicate AC_xx_param upated since last associate
1864                                         }
1865 associate_complete:
1866                                         ieee80211_associate_complete(ieee);
1867                                 }else{
1868                                         ieee->softmac_stats.rx_ass_err++;
1869                                         IEEE80211_DEBUG_MGMT(
1870                                                 "Association response status code 0x%x\n",
1871                                                 errcode);
1872                                         ieee80211_associate_abort(ieee);
1873                                 }
1874                         }
1875                         break;
1876
1877                 case IEEE80211_STYPE_ASSOC_REQ:
1878                 case IEEE80211_STYPE_REASSOC_REQ:
1879
1880                         if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
1881                                 ieee->iw_mode == IW_MODE_MASTER)
1882
1883                                 ieee80211_rx_assoc_rq(ieee, skb);
1884                         break;
1885
1886                 case IEEE80211_STYPE_AUTH:
1887
1888                         if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE){
1889                                 if (ieee->state == IEEE80211_ASSOCIATING_AUTHENTICATING &&
1890                                 ieee->iw_mode == IW_MODE_INFRA){
1891
1892                                                 IEEE80211_DEBUG_MGMT("Received authentication response");
1893
1894                                                 if (0 == (errcode=auth_parse(skb, &challenge, &chlen))){
1895                                                         if(ieee->open_wep || !challenge){
1896                                                                 ieee->state = IEEE80211_ASSOCIATING_AUTHENTICATED;
1897                                                                 ieee->softmac_stats.rx_auth_rs_ok++;
1898
1899                                                                 ieee80211_associate_step2(ieee);
1900                                                         }else{
1901                                                                 ieee80211_auth_challenge(ieee, challenge, chlen);
1902                                                         }
1903                                                 }else{
1904                                                         ieee->softmac_stats.rx_auth_rs_err++;
1905                                                         IEEE80211_DEBUG_MGMT("Authentication respose status code 0x%x",errcode);
1906                                                         ieee80211_associate_abort(ieee);
1907                                                 }
1908
1909                                         }else if (ieee->iw_mode == IW_MODE_MASTER){
1910                                                 ieee80211_rx_auth_rq(ieee, skb);
1911                                         }
1912                                 }
1913                         break;
1914
1915                 case IEEE80211_STYPE_PROBE_REQ:
1916
1917                         if ((ieee->softmac_features & IEEE_SOFTMAC_PROBERS) &&
1918                                 ((ieee->iw_mode == IW_MODE_ADHOC ||
1919                                 ieee->iw_mode == IW_MODE_MASTER) &&
1920                                 ieee->state == IEEE80211_LINKED))
1921
1922                                 ieee80211_rx_probe_rq(ieee, skb);
1923                         break;
1924
1925                 case IEEE80211_STYPE_DISASSOC:
1926                 case IEEE80211_STYPE_DEAUTH:
1927                         /* FIXME for now repeat all the association procedure
1928                         * both for disassociation and deauthentication
1929                         */
1930                         if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
1931                                 (ieee->state == IEEE80211_LINKED) &&
1932                                 (ieee->iw_mode == IW_MODE_INFRA) &&
1933                                 (!memcmp(header->addr2,ieee->current_network.bssid,ETH_ALEN))){
1934                                 ieee->state = IEEE80211_ASSOCIATING;
1935                                 ieee->softmac_stats.reassoc++;
1936
1937                                 //notify_wx_assoc_event(ieee);  //YJ,del,080828, do not notify os here
1938                                 queue_work(ieee->wq, &ieee->associate_procedure_wq);
1939                         }
1940
1941                         break;
1942
1943                 default:
1944                         return -1;
1945                         break;
1946         }
1947
1948         //dev_kfree_skb_any(skb);
1949         return 0;
1950 }
1951
1952
1953
1954 /* following are for a simplier TX queue management.
1955  * Instead of using netif_[stop/wake]_queue the driver
1956  * will uses these two function (plus a reset one), that
1957  * will internally uses the kernel netif_* and takes
1958  * care of the ieee802.11 fragmentation.
1959  * So the driver receives a fragment per time and might
1960  * call the stop function when it want without take care
1961  * to have enought room to TX an entire packet.
1962  * This might be useful if each fragment need it's own
1963  * descriptor, thus just keep a total free memory > than
1964  * the max fragmentation treshold is not enought.. If the
1965  * ieee802.11 stack passed a TXB struct then you needed
1966  * to keep N free descriptors where
1967  * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
1968  * In this way you need just one and the 802.11 stack
1969  * will take care of buffering fragments and pass them to
1970  * to the driver later, when it wakes the queue.
1971  */
1972
1973 void ieee80211_softmac_xmit(struct ieee80211_txb *txb, struct ieee80211_device *ieee)
1974 {
1975
1976
1977         unsigned long flags;
1978         int  i;
1979
1980         spin_lock_irqsave(&ieee->lock,flags);
1981
1982         /* called with 2nd parm 0, no tx mgmt lock required */
1983         ieee80211_sta_wakeup(ieee,0);
1984
1985         for(i = 0; i < txb->nr_frags; i++) {
1986
1987                 if (ieee->queue_stop){
1988                         ieee->tx_pending.txb = txb;
1989                         ieee->tx_pending.frag = i;
1990                         goto exit;
1991                 }else{
1992                         ieee->softmac_data_hard_start_xmit(
1993                                 txb->fragments[i],
1994                                 ieee->dev,ieee->rate);
1995                                 //(i+1)<txb->nr_frags);
1996                         ieee->stats.tx_packets++;
1997                         ieee->stats.tx_bytes += txb->fragments[i]->len;
1998                         ieee->dev->trans_start = jiffies;
1999                 }
2000         }
2001
2002         ieee80211_txb_free(txb);
2003
2004         exit:
2005         spin_unlock_irqrestore(&ieee->lock,flags);
2006
2007 }
2008
2009 /* called with ieee->lock acquired */
2010 void ieee80211_resume_tx(struct ieee80211_device *ieee)
2011 {
2012         int i;
2013         for(i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags; i++) {
2014
2015                 if (ieee->queue_stop){
2016                         ieee->tx_pending.frag = i;
2017                         return;
2018                 }else{
2019
2020                         ieee->softmac_data_hard_start_xmit(
2021                                 ieee->tx_pending.txb->fragments[i],
2022                                 ieee->dev,ieee->rate);
2023                                 //(i+1)<ieee->tx_pending.txb->nr_frags);
2024                         ieee->stats.tx_packets++;
2025                         ieee->dev->trans_start = jiffies;
2026                 }
2027         }
2028
2029
2030         ieee80211_txb_free(ieee->tx_pending.txb);
2031         ieee->tx_pending.txb = NULL;
2032 }
2033
2034
2035 void ieee80211_reset_queue(struct ieee80211_device *ieee)
2036 {
2037         unsigned long flags;
2038
2039         spin_lock_irqsave(&ieee->lock,flags);
2040         init_mgmt_queue(ieee);
2041         if (ieee->tx_pending.txb){
2042                 ieee80211_txb_free(ieee->tx_pending.txb);
2043                 ieee->tx_pending.txb = NULL;
2044         }
2045         ieee->queue_stop = 0;
2046         spin_unlock_irqrestore(&ieee->lock,flags);
2047
2048 }
2049
2050 void ieee80211_wake_queue(struct ieee80211_device *ieee)
2051 {
2052
2053         unsigned long flags;
2054         struct sk_buff *skb;
2055         struct ieee80211_hdr_3addr  *header;
2056
2057         spin_lock_irqsave(&ieee->lock,flags);
2058         if (! ieee->queue_stop) goto exit;
2059
2060         ieee->queue_stop = 0;
2061
2062         if(ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE){
2063                 while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))){
2064
2065                         header = (struct ieee80211_hdr_3addr  *) skb->data;
2066
2067                         header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2068
2069                         if (ieee->seq_ctrl[0] == 0xFFF)
2070                                 ieee->seq_ctrl[0] = 0;
2071                         else
2072                                 ieee->seq_ctrl[0]++;
2073
2074                         //printk(KERN_ALERT "ieee80211_wake_queue \n");
2075                         ieee->softmac_data_hard_start_xmit(skb,ieee->dev,ieee->basic_rate);
2076                         dev_kfree_skb_any(skb);//edit by thomas
2077                 }
2078         }
2079         if (!ieee->queue_stop && ieee->tx_pending.txb)
2080                 ieee80211_resume_tx(ieee);
2081
2082         if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)){
2083                 ieee->softmac_stats.swtxawake++;
2084                 netif_wake_queue(ieee->dev);
2085         }
2086
2087 exit :
2088         spin_unlock_irqrestore(&ieee->lock,flags);
2089 }
2090
2091
2092 void ieee80211_stop_queue(struct ieee80211_device *ieee)
2093 {
2094         //unsigned long flags;
2095         //spin_lock_irqsave(&ieee->lock,flags);
2096
2097         if (! netif_queue_stopped(ieee->dev)){
2098                 netif_stop_queue(ieee->dev);
2099                 ieee->softmac_stats.swtxstop++;
2100         }
2101         ieee->queue_stop = 1;
2102         //spin_unlock_irqrestore(&ieee->lock,flags);
2103
2104 }
2105
2106
2107 inline void ieee80211_randomize_cell(struct ieee80211_device *ieee)
2108 {
2109
2110         get_random_bytes(ieee->current_network.bssid, ETH_ALEN);
2111
2112         /* an IBSS cell address must have the two less significant
2113          * bits of the first byte = 2
2114          */
2115         ieee->current_network.bssid[0] &= ~0x01;
2116         ieee->current_network.bssid[0] |= 0x02;
2117 }
2118
2119 /* called in user context only */
2120 void ieee80211_start_master_bss(struct ieee80211_device *ieee)
2121 {
2122         ieee->assoc_id = 1;
2123
2124         if (ieee->current_network.ssid_len == 0){
2125                 strncpy(ieee->current_network.ssid,
2126                         IEEE80211_DEFAULT_TX_ESSID,
2127                         IW_ESSID_MAX_SIZE);
2128
2129                 ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
2130                 ieee->ssid_set = 1;
2131         }
2132
2133         memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN);
2134
2135         ieee->set_chan(ieee->dev, ieee->current_network.channel);
2136         ieee->state = IEEE80211_LINKED;
2137         ieee->link_change(ieee->dev);
2138         notify_wx_assoc_event(ieee);
2139
2140         if (ieee->data_hard_resume)
2141                 ieee->data_hard_resume(ieee->dev);
2142
2143         netif_carrier_on(ieee->dev);
2144 }
2145
2146 void ieee80211_start_monitor_mode(struct ieee80211_device *ieee)
2147 {
2148         if(ieee->raw_tx){
2149
2150                 if (ieee->data_hard_resume)
2151                         ieee->data_hard_resume(ieee->dev);
2152
2153                 netif_carrier_on(ieee->dev);
2154         }
2155 }
2156
2157 void ieee80211_start_ibss_wq(struct work_struct *work)
2158 {
2159         struct delayed_work *dwork = to_delayed_work(work);
2160         struct ieee80211_device *ieee = container_of(dwork, struct ieee80211_device, start_ibss_wq);
2161
2162         /* iwconfig mode ad-hoc will schedule this and return
2163          * on the other hand this will block further iwconfig SET
2164          * operations because of the wx_sem hold.
2165          * Anyway some most set operations set a flag to speed-up
2166          * (abort) this wq (when syncro scanning) before sleeping
2167          * on the semaphore
2168          */
2169
2170         down(&ieee->wx_sem);
2171
2172
2173         if (ieee->current_network.ssid_len == 0){
2174                 strcpy(ieee->current_network.ssid,IEEE80211_DEFAULT_TX_ESSID);
2175                 ieee->current_network.ssid_len = strlen(IEEE80211_DEFAULT_TX_ESSID);
2176                 ieee->ssid_set = 1;
2177         }
2178
2179         /* check if we have this cell in our network list */
2180         ieee80211_softmac_check_all_nets(ieee);
2181
2182         if(ieee->state == IEEE80211_NOLINK)
2183                 ieee->current_network.channel = 10;
2184         /* if not then the state is not linked. Maybe the user swithced to
2185          * ad-hoc mode just after being in monitor mode, or just after
2186          * being very few time in managed mode (so the card have had no
2187          * time to scan all the chans..) or we have just run up the iface
2188          * after setting ad-hoc mode. So we have to give another try..
2189          * Here, in ibss mode, should be safe to do this without extra care
2190          * (in bss mode we had to make sure no-one tryed to associate when
2191          * we had just checked the ieee->state and we was going to start the
2192          * scan) beacause in ibss mode the ieee80211_new_net function, when
2193          * finds a good net, just set the ieee->state to IEEE80211_LINKED,
2194          * so, at worst, we waste a bit of time to initiate an unneeded syncro
2195          * scan, that will stop at the first round because it sees the state
2196          * associated.
2197          */
2198         if (ieee->state == IEEE80211_NOLINK)
2199                 ieee80211_start_scan_syncro(ieee);
2200
2201         /* the network definitively is not here.. create a new cell */
2202         if (ieee->state == IEEE80211_NOLINK){
2203                 printk("creating new IBSS cell\n");
2204                 if(!ieee->wap_set)
2205                         ieee80211_randomize_cell(ieee);
2206
2207                 if(ieee->modulation & IEEE80211_CCK_MODULATION){
2208
2209                         ieee->current_network.rates_len = 4;
2210
2211                         ieee->current_network.rates[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_1MB;
2212                         ieee->current_network.rates[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_2MB;
2213                         ieee->current_network.rates[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_5MB;
2214                         ieee->current_network.rates[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_CCK_RATE_11MB;
2215
2216                 }else
2217                         ieee->current_network.rates_len = 0;
2218
2219                 if(ieee->modulation & IEEE80211_OFDM_MODULATION){
2220                         ieee->current_network.rates_ex_len = 8;
2221
2222                         ieee->current_network.rates_ex[0] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_6MB;
2223                         ieee->current_network.rates_ex[1] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_9MB;
2224                         ieee->current_network.rates_ex[2] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_12MB;
2225                         ieee->current_network.rates_ex[3] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_18MB;
2226                         ieee->current_network.rates_ex[4] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_24MB;
2227                         ieee->current_network.rates_ex[5] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_36MB;
2228                         ieee->current_network.rates_ex[6] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_48MB;
2229                         ieee->current_network.rates_ex[7] = IEEE80211_BASIC_RATE_MASK | IEEE80211_OFDM_RATE_54MB;
2230
2231                         ieee->rate = 540;
2232                 }else{
2233                         ieee->current_network.rates_ex_len = 0;
2234                         ieee->rate = 110;
2235                 }
2236
2237                 // By default, WMM function will be disabled in IBSS mode
2238                 ieee->current_network.QoS_Enable = 0;
2239
2240                 ieee->current_network.atim_window = 0;
2241                 ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
2242                 if(ieee->short_slot)
2243                         ieee->current_network.capability |= WLAN_CAPABILITY_SHORT_SLOT;
2244
2245         }
2246
2247         ieee->state = IEEE80211_LINKED;
2248         ieee->set_chan(ieee->dev, ieee->current_network.channel);
2249         ieee->link_change(ieee->dev);
2250
2251         notify_wx_assoc_event(ieee);
2252
2253         ieee80211_start_send_beacons(ieee);
2254         printk(KERN_WARNING "after sending beacon packet!\n");
2255
2256         if (ieee->data_hard_resume)
2257                 ieee->data_hard_resume(ieee->dev);
2258
2259         netif_carrier_on(ieee->dev);
2260
2261         up(&ieee->wx_sem);
2262 }
2263 inline void ieee80211_start_ibss(struct ieee80211_device *ieee)
2264 {
2265         queue_delayed_work(ieee->wq, &ieee->start_ibss_wq, 100);
2266 }
2267
2268 /* this is called only in user context, with wx_sem held */
2269 void ieee80211_start_bss(struct ieee80211_device *ieee)
2270 {
2271         unsigned long flags;
2272         //
2273         // Ref: 802.11d 11.1.3.3
2274         // STA shall not start a BSS unless properly formed Beacon frame including a Country IE.
2275         //
2276         if(IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee))
2277         {
2278                 if(! ieee->bGlobalDomain)
2279                 {
2280                         return;
2281                 }
2282         }
2283         /* check if we have already found the net we
2284          * are interested in (if any).
2285          * if not (we are disassociated and we are not
2286          * in associating / authenticating phase) start the background scanning.
2287          */
2288         ieee80211_softmac_check_all_nets(ieee);
2289
2290         /* ensure no-one start an associating process (thus setting
2291          * the ieee->state to ieee80211_ASSOCIATING) while we
2292          * have just cheked it and we are going to enable scan.
2293          * The ieee80211_new_net function is always called with
2294          * lock held (from both ieee80211_softmac_check_all_nets and
2295          * the rx path), so we cannot be in the middle of such function
2296          */
2297         spin_lock_irqsave(&ieee->lock, flags);
2298
2299 //#ifdef ENABLE_IPS
2300 //      printk("start bss ENABLE_IPS\n");
2301 //#else
2302         if (ieee->state == IEEE80211_NOLINK){
2303                 ieee->actscanning = true;
2304                 ieee80211_start_scan(ieee);
2305         }
2306 //#endif
2307         spin_unlock_irqrestore(&ieee->lock, flags);
2308 }
2309
2310 /* called only in userspace context */
2311 void ieee80211_disassociate(struct ieee80211_device *ieee)
2312 {
2313         netif_carrier_off(ieee->dev);
2314
2315         if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
2316                         ieee80211_reset_queue(ieee);
2317
2318         if (ieee->data_hard_stop)
2319                         ieee->data_hard_stop(ieee->dev);
2320
2321         if(IS_DOT11D_ENABLE(ieee))
2322                 Dot11d_Reset(ieee);
2323         ieee->state = IEEE80211_NOLINK;
2324         ieee->link_change(ieee->dev);
2325         notify_wx_assoc_event(ieee);
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 procdure (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_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 #ifdef PF_SYNCTHREAD
2567         ieee->wq = create_workqueue(DRV_NAME,0);
2568 #else
2569         ieee->wq = create_workqueue(DRV_NAME);
2570 #endif
2571         INIT_DELAYED_WORK(&ieee->start_ibss_wq,(void*) ieee80211_start_ibss_wq);
2572         INIT_WORK(&ieee->associate_complete_wq,(void*) ieee80211_associate_complete_wq);
2573         INIT_WORK(&ieee->associate_procedure_wq,(void*) ieee80211_associate_procedure_wq);
2574         INIT_DELAYED_WORK(&ieee->softmac_scan_wq,(void*) ieee80211_softmac_scan_wq);
2575         INIT_DELAYED_WORK(&ieee->associate_retry_wq,(void*) ieee80211_associate_retry_wq);
2576         INIT_WORK(&ieee->wx_sync_scan_wq,(void*) ieee80211_wx_sync_scan_wq);
2577 //      INIT_WORK(&ieee->watch_dog_wq,(void*) ieee80211_watch_dog_wq);
2578
2579         sema_init(&ieee->wx_sem, 1);
2580         sema_init(&ieee->scan_sem, 1);
2581
2582         spin_lock_init(&ieee->mgmt_tx_lock);
2583         spin_lock_init(&ieee->beacon_lock);
2584
2585         tasklet_init(&ieee->ps_task,
2586              (void(*)(unsigned long)) ieee80211_sta_ps,
2587              (unsigned long)ieee);
2588         ieee->pDot11dInfo = kmalloc(sizeof(RT_DOT11D_INFO), GFP_ATOMIC);
2589 }
2590
2591 void ieee80211_softmac_free(struct ieee80211_device *ieee)
2592 {
2593         down(&ieee->wx_sem);
2594
2595         del_timer_sync(&ieee->associate_timer);
2596         cancel_delayed_work(&ieee->associate_retry_wq);
2597
2598
2599         //add for RF power on power of by lizhaoming 080512
2600         cancel_delayed_work(&ieee->GPIOChangeRFWorkItem);
2601
2602         destroy_workqueue(ieee->wq);
2603         if(NULL != ieee->pDot11dInfo)
2604                 kfree(ieee->pDot11dInfo);
2605         up(&ieee->wx_sem);
2606 }
2607
2608 /********************************************************
2609  * Start of WPA code.                                   *
2610  * this is stolen from the ipw2200 driver               *
2611  ********************************************************/
2612
2613
2614 static int ieee80211_wpa_enable(struct ieee80211_device *ieee, int value)
2615 {
2616         /* This is called when wpa_supplicant loads and closes the driver
2617          * interface. */
2618         printk("%s WPA\n",value ? "enabling" : "disabling");
2619         ieee->wpa_enabled = value;
2620         return 0;
2621 }
2622
2623
2624 void ieee80211_wpa_assoc_frame(struct ieee80211_device *ieee, char *wpa_ie, int wpa_ie_len)
2625 {
2626         /* make sure WPA is enabled */
2627         ieee80211_wpa_enable(ieee, 1);
2628
2629         ieee80211_disassociate(ieee);
2630 }
2631
2632
2633 static int ieee80211_wpa_mlme(struct ieee80211_device *ieee, int command, int reason)
2634 {
2635
2636         int ret = 0;
2637
2638         switch (command) {
2639         case IEEE_MLME_STA_DEAUTH:
2640                 // silently ignore
2641                 break;
2642
2643         case IEEE_MLME_STA_DISASSOC:
2644                 ieee80211_disassociate(ieee);
2645                 break;
2646
2647         default:
2648                 printk("Unknown MLME request: %d\n", command);
2649                 ret = -EOPNOTSUPP;
2650         }
2651
2652         return ret;
2653 }
2654
2655
2656 static int ieee80211_wpa_set_wpa_ie(struct ieee80211_device *ieee,
2657                               struct ieee_param *param, int plen)
2658 {
2659         u8 *buf;
2660
2661         if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
2662             (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
2663                 return -EINVAL;
2664
2665         if (param->u.wpa_ie.len) {
2666                 buf = kmalloc(param->u.wpa_ie.len, GFP_KERNEL);
2667                 if (buf == NULL)
2668                         return -ENOMEM;
2669
2670                 memcpy(buf, param->u.wpa_ie.data, param->u.wpa_ie.len);
2671                 kfree(ieee->wpa_ie);
2672                 ieee->wpa_ie = buf;
2673                 ieee->wpa_ie_len = param->u.wpa_ie.len;
2674         } else {
2675                 kfree(ieee->wpa_ie);
2676                 ieee->wpa_ie = NULL;
2677                 ieee->wpa_ie_len = 0;
2678         }
2679
2680         ieee80211_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
2681         return 0;
2682 }
2683
2684 #define AUTH_ALG_OPEN_SYSTEM                    0x1
2685 #define AUTH_ALG_SHARED_KEY                     0x2
2686
2687 static int ieee80211_wpa_set_auth_algs(struct ieee80211_device *ieee, int value)
2688 {
2689
2690         struct ieee80211_security sec = {
2691                 .flags = SEC_AUTH_MODE,
2692         };
2693         int ret = 0;
2694
2695         if (value & AUTH_ALG_SHARED_KEY) {
2696                 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
2697                 ieee->open_wep = 0;
2698         } else {
2699                 sec.auth_mode = WLAN_AUTH_OPEN;
2700                 ieee->open_wep = 1;
2701         }
2702
2703         if (ieee->set_security)
2704                 ieee->set_security(ieee->dev, &sec);
2705         else
2706                 ret = -EOPNOTSUPP;
2707
2708         return ret;
2709 }
2710
2711 static int ieee80211_wpa_set_param(struct ieee80211_device *ieee, u8 name, u32 value)
2712 {
2713         int ret=0;
2714         unsigned long flags;
2715
2716         switch (name) {
2717         case IEEE_PARAM_WPA_ENABLED:
2718                 ret = ieee80211_wpa_enable(ieee, value);
2719                 break;
2720
2721         case IEEE_PARAM_TKIP_COUNTERMEASURES:
2722                 ieee->tkip_countermeasures=value;
2723                 break;
2724
2725         case IEEE_PARAM_DROP_UNENCRYPTED: {
2726                 /* HACK:
2727                  *
2728                  * wpa_supplicant calls set_wpa_enabled when the driver
2729                  * is loaded and unloaded, regardless of if WPA is being
2730                  * used.  No other calls are made which can be used to
2731                  * determine if encryption will be used or not prior to
2732                  * association being expected.  If encryption is not being
2733                  * used, drop_unencrypted is set to false, else true -- we
2734                  * can use this to determine if the CAP_PRIVACY_ON bit should
2735                  * be set.
2736                  */
2737                 struct ieee80211_security sec = {
2738                         .flags = SEC_ENABLED,
2739                         .enabled = value,
2740                 };
2741                 ieee->drop_unencrypted = value;
2742                 /* We only change SEC_LEVEL for open mode. Others
2743                  * are set by ipw_wpa_set_encryption.
2744                  */
2745                 if (!value) {
2746                         sec.flags |= SEC_LEVEL;
2747                         sec.level = SEC_LEVEL_0;
2748                 }
2749                 else {
2750                         sec.flags |= SEC_LEVEL;
2751                         sec.level = SEC_LEVEL_1;
2752                 }
2753                 if (ieee->set_security)
2754                         ieee->set_security(ieee->dev, &sec);
2755                 break;
2756         }
2757
2758         case IEEE_PARAM_PRIVACY_INVOKED:
2759                 ieee->privacy_invoked=value;
2760                 break;
2761
2762         case IEEE_PARAM_AUTH_ALGS:
2763                 ret = ieee80211_wpa_set_auth_algs(ieee, value);
2764                 break;
2765
2766         case IEEE_PARAM_IEEE_802_1X:
2767                 ieee->ieee802_1x=value;
2768                 break;
2769         case IEEE_PARAM_WPAX_SELECT:
2770                 // added for WPA2 mixed mode
2771                 //printk(KERN_WARNING "------------------------>wpax value = %x\n", value);
2772                 spin_lock_irqsave(&ieee->wpax_suitlist_lock,flags);
2773                 ieee->wpax_type_set = 1;
2774                 ieee->wpax_type_notify = value;
2775                 spin_unlock_irqrestore(&ieee->wpax_suitlist_lock,flags);
2776                 break;
2777
2778         default:
2779                 printk("Unknown WPA param: %d\n",name);
2780                 ret = -EOPNOTSUPP;
2781         }
2782
2783         return ret;
2784 }
2785
2786 /* implementation borrowed from hostap driver */
2787
2788 static int ieee80211_wpa_set_encryption(struct ieee80211_device *ieee,
2789                                   struct ieee_param *param, int param_len)
2790 {
2791         int ret = 0;
2792
2793         struct ieee80211_crypto_ops *ops;
2794         struct ieee80211_crypt_data **crypt;
2795
2796         struct ieee80211_security sec = {
2797                 .flags = 0,
2798         };
2799
2800         param->u.crypt.err = 0;
2801         param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
2802
2803         if (param_len !=
2804             (int) ((char *) param->u.crypt.key - (char *) param) +
2805             param->u.crypt.key_len) {
2806                 printk("Len mismatch %d, %d\n", param_len,
2807                                param->u.crypt.key_len);
2808                 return -EINVAL;
2809         }
2810         if (param->sta_addr[0] == 0xff && param->sta_addr[1] == 0xff &&
2811             param->sta_addr[2] == 0xff && param->sta_addr[3] == 0xff &&
2812             param->sta_addr[4] == 0xff && param->sta_addr[5] == 0xff) {
2813                 if (param->u.crypt.idx >= WEP_KEYS)
2814                         return -EINVAL;
2815                 crypt = &ieee->crypt[param->u.crypt.idx];
2816         } else {
2817                 return -EINVAL;
2818         }
2819
2820         if (strcmp(param->u.crypt.alg, "none") == 0) {
2821                 if (crypt) {
2822                         sec.enabled = 0;
2823                         // FIXME FIXME
2824                         //sec.encrypt = 0;
2825                         sec.level = SEC_LEVEL_0;
2826                         sec.flags |= SEC_ENABLED | SEC_LEVEL;
2827                         ieee80211_crypt_delayed_deinit(ieee, crypt);
2828                 }
2829                 goto done;
2830         }
2831         sec.enabled = 1;
2832 // FIXME FIXME
2833 //      sec.encrypt = 1;
2834         sec.flags |= SEC_ENABLED;
2835
2836         /* IPW HW cannot build TKIP MIC, host decryption still needed. */
2837         if (!(ieee->host_encrypt || ieee->host_decrypt) &&
2838             strcmp(param->u.crypt.alg, "TKIP"))
2839                 goto skip_host_crypt;
2840
2841         ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2842         if (ops == NULL && strcmp(param->u.crypt.alg, "WEP") == 0)
2843                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2844         else if (ops == NULL && strcmp(param->u.crypt.alg, "TKIP") == 0)
2845                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2846         else if (ops == NULL && strcmp(param->u.crypt.alg, "CCMP") == 0)
2847                 ops = ieee80211_get_crypto_ops(param->u.crypt.alg);
2848         if (ops == NULL) {
2849                 printk("unknown crypto alg '%s'\n", param->u.crypt.alg);
2850                 param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
2851                 ret = -EINVAL;
2852                 goto done;
2853         }
2854
2855         if (*crypt == NULL || (*crypt)->ops != ops) {
2856                 struct ieee80211_crypt_data *new_crypt;
2857
2858                 ieee80211_crypt_delayed_deinit(ieee, crypt);
2859
2860                 new_crypt = (struct ieee80211_crypt_data *)
2861                         kmalloc(sizeof(*new_crypt), GFP_KERNEL);
2862                 if (new_crypt == NULL) {
2863                         ret = -ENOMEM;
2864                         goto done;
2865                 }
2866                 memset(new_crypt, 0, sizeof(struct ieee80211_crypt_data));
2867                 new_crypt->ops = ops;
2868                 if (new_crypt->ops)
2869                         new_crypt->priv =
2870                                 new_crypt->ops->init(param->u.crypt.idx);
2871
2872                 if (new_crypt->priv == NULL) {
2873                         kfree(new_crypt);
2874                         param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
2875                         ret = -EINVAL;
2876                         goto done;
2877                 }
2878
2879                 *crypt = new_crypt;
2880         }
2881
2882         if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
2883             (*crypt)->ops->set_key(param->u.crypt.key,
2884                                    param->u.crypt.key_len, param->u.crypt.seq,
2885                                    (*crypt)->priv) < 0) {
2886                 printk("key setting failed\n");
2887                 param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
2888                 ret = -EINVAL;
2889                 goto done;
2890         }
2891
2892  skip_host_crypt:
2893         if (param->u.crypt.set_tx) {
2894                 ieee->tx_keyidx = param->u.crypt.idx;
2895                 sec.active_key = param->u.crypt.idx;
2896                 sec.flags |= SEC_ACTIVE_KEY;
2897         } else
2898                 sec.flags &= ~SEC_ACTIVE_KEY;
2899
2900         if (param->u.crypt.alg != NULL) {
2901                 memcpy(sec.keys[param->u.crypt.idx],
2902                        param->u.crypt.key,
2903                        param->u.crypt.key_len);
2904                 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
2905                 sec.flags |= (1 << param->u.crypt.idx);
2906
2907                 if (strcmp(param->u.crypt.alg, "WEP") == 0) {
2908                         sec.flags |= SEC_LEVEL;
2909                         sec.level = SEC_LEVEL_1;
2910                 } else if (strcmp(param->u.crypt.alg, "TKIP") == 0) {
2911                         sec.flags |= SEC_LEVEL;
2912                         sec.level = SEC_LEVEL_2;
2913                 } else if (strcmp(param->u.crypt.alg, "CCMP") == 0) {
2914                         sec.flags |= SEC_LEVEL;
2915                         sec.level = SEC_LEVEL_3;
2916                 }
2917         }
2918  done:
2919         if (ieee->set_security)
2920                 ieee->set_security(ieee->dev, &sec);
2921
2922         /* Do not reset port if card is in Managed mode since resetting will
2923          * generate new IEEE 802.11 authentication which may end up in looping
2924          * with IEEE 802.1X.  If your hardware requires a reset after WEP
2925          * configuration (for example... Prism2), implement the reset_port in
2926          * the callbacks structures used to initialize the 802.11 stack. */
2927         if (ieee->reset_on_keychange &&
2928             ieee->iw_mode != IW_MODE_INFRA &&
2929             ieee->reset_port &&
2930             ieee->reset_port(ieee->dev)) {
2931                 printk("reset_port failed\n");
2932                 param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
2933                 return -EINVAL;
2934         }
2935
2936         return ret;
2937 }
2938
2939 int ieee80211_wpa_supplicant_ioctl(struct ieee80211_device *ieee, struct iw_point *p)
2940 {
2941         struct ieee_param *param;
2942         int ret=0;
2943
2944         down(&ieee->wx_sem);
2945         //IEEE_DEBUG_INFO("wpa_supplicant: len=%d\n", p->length);
2946
2947         if (p->length < sizeof(struct ieee_param) || !p->pointer){
2948                 ret = -EINVAL;
2949                 goto out;
2950         }
2951
2952         param = (struct ieee_param *)kmalloc(p->length, GFP_KERNEL);
2953         if (param == NULL){
2954                 ret = -ENOMEM;
2955                 goto out;
2956         }
2957         if (copy_from_user(param, p->pointer, p->length)) {
2958                 kfree(param);
2959                 ret = -EFAULT;
2960                 goto out;
2961         }
2962
2963         switch (param->cmd) {
2964
2965         case IEEE_CMD_SET_WPA_PARAM:
2966                 ret = ieee80211_wpa_set_param(ieee, param->u.wpa_param.name,
2967                                         param->u.wpa_param.value);
2968                 break;
2969
2970         case IEEE_CMD_SET_WPA_IE:
2971                 ret = ieee80211_wpa_set_wpa_ie(ieee, param, p->length);
2972                 break;
2973
2974         case IEEE_CMD_SET_ENCRYPTION:
2975                 ret = ieee80211_wpa_set_encryption(ieee, param, p->length);
2976                 break;
2977
2978         case IEEE_CMD_MLME:
2979                 ret = ieee80211_wpa_mlme(ieee, param->u.mlme.command,
2980                                    param->u.mlme.reason_code);
2981                 break;
2982
2983         default:
2984                 printk("Unknown WPA supplicant request: %d\n",param->cmd);
2985                 ret = -EOPNOTSUPP;
2986                 break;
2987         }
2988
2989         if (ret == 0 && copy_to_user(p->pointer, param, p->length))
2990                 ret = -EFAULT;
2991
2992         kfree(param);
2993 out:
2994         up(&ieee->wx_sem);
2995
2996         return ret;
2997 }
2998
2999 void notify_wx_assoc_event(struct ieee80211_device *ieee)
3000 {
3001         union iwreq_data wrqu;
3002         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3003         if (ieee->state == IEEE80211_LINKED)
3004                 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid, ETH_ALEN);
3005         else
3006                 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
3007         wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3008 }