drivers/staging/rtl8192e/rtllib_softmac.c

   1 /* IEEE 802.11 SoftMAC layer
   2  * Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com>
   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 rtllib
   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 "rtllib.h"
  18
  19 #include <linux/random.h>
  20 #include <linux/delay.h>
  21 #include <linux/uaccess.h>
  22 #include <linux/etherdevice.h>
  23 #include "dot11d.h"
  24
  25 short rtllib_is_54g(struct rtllib_network *net)
  26 {
  27         return (net->rates_ex_len > 0) || (net->rates_len > 4);
  28 }
  29
  30 short rtllib_is_shortslot(const struct rtllib_network *net)
  31 {
  32         return net->capability & WLAN_CAPABILITY_SHORT_SLOT_TIME;
  33 }
  34
  35 /* returns the total length needed for placing the RATE MFIE
  36  * tag and the EXTENDED RATE MFIE tag if needed.
  37  * It encludes two bytes per tag for the tag itself and its len
  38  */
  39 static unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
  40 {
  41         unsigned int rate_len = 0;
  42
  43         if (ieee->modulation & RTLLIB_CCK_MODULATION)
  44                 rate_len = RTLLIB_CCK_RATE_LEN + 2;
  45
  46         if (ieee->modulation & RTLLIB_OFDM_MODULATION)
  47
  48                 rate_len += RTLLIB_OFDM_RATE_LEN + 2;
  49
  50         return rate_len;
  51 }
  52
  53 /* place the MFIE rate, tag to the memory (double) pointed.
  54  * Then it updates the pointer so that
  55  * it points after the new MFIE tag added.
  56  */
  57 static void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
  58 {
  59         u8 *tag = *tag_p;
  60
  61         if (ieee->modulation & RTLLIB_CCK_MODULATION) {
  62                 *tag++ = MFIE_TYPE_RATES;
  63                 *tag++ = 4;
  64                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
  65                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
  66                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
  67                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
  68         }
  69
  70         /* We may add an option for custom rates that specific HW
  71          * might support */
  72         *tag_p = tag;
  73 }
  74
  75 static void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
  76 {
  77         u8 *tag = *tag_p;
  78
  79         if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
  80                 *tag++ = MFIE_TYPE_RATES_EX;
  81                 *tag++ = 8;
  82                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
  83                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
  84                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
  85                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
  86                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
  87                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
  88                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
  89                 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;
  90         }
  91         /* We may add an option for custom rates that specific HW might
  92          * support */
  93         *tag_p = tag;
  94 }
  95
  96 static void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p)
  97 {
  98         u8 *tag = *tag_p;
  99
 100         *tag++ = MFIE_TYPE_GENERIC;
 101         *tag++ = 7;
 102         *tag++ = 0x00;
 103         *tag++ = 0x50;
 104         *tag++ = 0xf2;
 105         *tag++ = 0x02;
 106         *tag++ = 0x00;
 107         *tag++ = 0x01;
 108         *tag++ = MAX_SP_Len;
 109         *tag_p = tag;
 110 }
 111
 112 void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p)
 113 {
 114         u8 *tag = *tag_p;
 115
 116         *tag++ = MFIE_TYPE_GENERIC;
 117         *tag++ = 7;
 118         *tag++ = 0x00;
 119         *tag++ = 0xe0;
 120         *tag++ = 0x4c;
 121         *tag++ = 0x01;
 122         *tag++ = 0x02;
 123         *tag++ = 0x11;
 124         *tag++ = 0x00;
 125
 126         *tag_p = tag;
 127         printk(KERN_ALERT "This is enable turbo mode IE process\n");
 128 }
 129
 130 static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
 131 {
 132         int nh;
 133
 134         nh = (ieee->mgmt_queue_head + 1) % MGMT_QUEUE_NUM;
 135
 136 /*
 137  * if the queue is full but we have newer frames then
 138  * just overwrites the oldest.
 139  *
 140  * if (nh == ieee->mgmt_queue_tail)
 141  *              return -1;
 142  */
 143         ieee->mgmt_queue_head = nh;
 144         ieee->mgmt_queue_ring[nh] = skb;
 145
 146 }
 147
 148 static struct sk_buff *dequeue_mgmt(struct rtllib_device *ieee)
 149 {
 150         struct sk_buff *ret;
 151
 152         if (ieee->mgmt_queue_tail == ieee->mgmt_queue_head)
 153                 return NULL;
 154
 155         ret = ieee->mgmt_queue_ring[ieee->mgmt_queue_tail];
 156
 157         ieee->mgmt_queue_tail =
 158                 (ieee->mgmt_queue_tail+1) % MGMT_QUEUE_NUM;
 159
 160         return ret;
 161 }
 162
 163 static void init_mgmt_queue(struct rtllib_device *ieee)
 164 {
 165         ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
 166 }
 167
 168
 169 u8
 170 MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
 171 {
 172         u16     i;
 173         u8      QueryRate = 0;
 174         u8      BasicRate;
 175
 176
 177         for (i = 0; i < ieee->current_network.rates_len; i++) {
 178                 BasicRate = ieee->current_network.rates[i]&0x7F;
 179                 if (!rtllib_is_cck_rate(BasicRate)) {
 180                         if (QueryRate == 0) {
 181                                 QueryRate = BasicRate;
 182                         } else {
 183                                 if (BasicRate < QueryRate)
 184                                         QueryRate = BasicRate;
 185                         }
 186                 }
 187         }
 188
 189         if (QueryRate == 0) {
 190                 QueryRate = 12;
 191                 printk(KERN_INFO "No BasicRate found!!\n");
 192         }
 193         return QueryRate;
 194 }
 195
 196 u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
 197 {
 198         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 199         u8 rate;
 200
 201         if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
 202                 rate = 0x0c;
 203         else
 204                 rate = ieee->basic_rate & 0x7f;
 205
 206         if (rate == 0) {
 207                 if (ieee->mode == IEEE_A ||
 208                    ieee->mode == IEEE_N_5G ||
 209                    (ieee->mode == IEEE_N_24G && !pHTInfo->bCurSuppCCK))
 210                         rate = 0x0c;
 211                 else
 212                         rate = 0x02;
 213         }
 214
 215         return rate;
 216 }
 217
 218 inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
 219 {
 220         unsigned long flags;
 221         short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
 222         struct rtllib_hdr_3addr  *header =
 223                 (struct rtllib_hdr_3addr  *) skb->data;
 224
 225         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
 226
 227         spin_lock_irqsave(&ieee->lock, flags);
 228
 229         /* called with 2nd param 0, no mgmt lock required */
 230         rtllib_sta_wakeup(ieee, 0);
 231
 232         if (le16_to_cpu(header->frame_ctl) == RTLLIB_STYPE_BEACON)
 233                 tcb_desc->queue_index = BEACON_QUEUE;
 234         else
 235                 tcb_desc->queue_index = MGNT_QUEUE;
 236
 237         if (ieee->disable_mgnt_queue)
 238                 tcb_desc->queue_index = HIGH_QUEUE;
 239
 240         tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
 241         tcb_desc->RATRIndex = 7;
 242         tcb_desc->bTxDisableRateFallBack = 1;
 243         tcb_desc->bTxUseDriverAssingedRate = 1;
 244         if (single) {
 245                 if (ieee->queue_stop) {
 246                         enqueue_mgmt(ieee, skb);
 247                 } else {
 248                         header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
 249
 250                         if (ieee->seq_ctrl[0] == 0xFFF)
 251                                 ieee->seq_ctrl[0] = 0;
 252                         else
 253                                 ieee->seq_ctrl[0]++;
 254
 255                         /* avoid watchdog triggers */
 256                         ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
 257                                                            ieee->basic_rate);
 258                 }
 259
 260                 spin_unlock_irqrestore(&ieee->lock, flags);
 261         } else {
 262                 spin_unlock_irqrestore(&ieee->lock, flags);
 263                 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
 264
 265                 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
 266
 267                 if (ieee->seq_ctrl[0] == 0xFFF)
 268                         ieee->seq_ctrl[0] = 0;
 269                 else
 270                         ieee->seq_ctrl[0]++;
 271
 272                 /* check whether the managed packet queued greater than 5 */
 273                 if (!ieee->check_nic_enough_desc(ieee->dev, tcb_desc->queue_index) ||
 274                     (skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) != 0) ||
 275                     (ieee->queue_stop)) {
 276                         /* insert the skb packet to the management queue */
 277                         /* as for the completion function, it does not need
 278                          * to check it any more.
 279                          * */
 280                         printk(KERN_INFO "%s():insert to waitqueue, queue_index"
 281                                ":%d!\n", __func__, tcb_desc->queue_index);
 282                         skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index],
 283                                        skb);
 284                 } else {
 285                         ieee->softmac_hard_start_xmit(skb, ieee->dev);
 286                 }
 287                 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
 288         }
 289 }
 290
 291 inline void softmac_ps_mgmt_xmit(struct sk_buff *skb,
 292                 struct rtllib_device *ieee)
 293 {
 294         short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
 295         struct rtllib_hdr_3addr  *header =
 296                 (struct rtllib_hdr_3addr  *) skb->data;
 297         u16 fc, type, stype;
 298         struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
 299
 300         fc = le16_to_cpu(header->frame_ctl);
 301         type = WLAN_FC_GET_TYPE(fc);
 302         stype = WLAN_FC_GET_STYPE(fc);
 303
 304
 305         if (stype != RTLLIB_STYPE_PSPOLL)
 306                 tcb_desc->queue_index = MGNT_QUEUE;
 307         else
 308                 tcb_desc->queue_index = HIGH_QUEUE;
 309
 310         if (ieee->disable_mgnt_queue)
 311                 tcb_desc->queue_index = HIGH_QUEUE;
 312
 313
 314         tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
 315         tcb_desc->RATRIndex = 7;
 316         tcb_desc->bTxDisableRateFallBack = 1;
 317         tcb_desc->bTxUseDriverAssingedRate = 1;
 318         if (single) {
 319                 if (type != RTLLIB_FTYPE_CTL) {
 320                         header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
 321
 322                         if (ieee->seq_ctrl[0] == 0xFFF)
 323                                 ieee->seq_ctrl[0] = 0;
 324                         else
 325                                 ieee->seq_ctrl[0]++;
 326
 327                 }
 328                 /* avoid watchdog triggers */
 329                 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
 330                                                    ieee->basic_rate);
 331
 332         } else {
 333                 if (type != RTLLIB_FTYPE_CTL) {
 334                         header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
 335
 336                         if (ieee->seq_ctrl[0] == 0xFFF)
 337                                 ieee->seq_ctrl[0] = 0;
 338                         else
 339                                 ieee->seq_ctrl[0]++;
 340                 }
 341                 ieee->softmac_hard_start_xmit(skb, ieee->dev);
 342
 343         }
 344 }
 345
 346 inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
 347 {
 348         unsigned int len, rate_len;
 349         u8 *tag;
 350         struct sk_buff *skb;
 351         struct rtllib_probe_request *req;
 352
 353         len = ieee->current_network.ssid_len;
 354
 355         rate_len = rtllib_MFIE_rate_len(ieee);
 356
 357         skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
 358                             2 + len + rate_len + ieee->tx_headroom);
 359
 360         if (!skb)
 361                 return NULL;
 362
 363         skb_reserve(skb, ieee->tx_headroom);
 364
 365         req = (struct rtllib_probe_request *) skb_put(skb,
 366               sizeof(struct rtllib_probe_request));
 367         req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
 368         req->header.duration_id = 0;
 369
 370         memset(req->header.addr1, 0xff, ETH_ALEN);
 371         memcpy(req->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 372         memset(req->header.addr3, 0xff, ETH_ALEN);
 373
 374         tag = (u8 *) skb_put(skb, len + 2 + rate_len);
 375
 376         *tag++ = MFIE_TYPE_SSID;
 377         *tag++ = len;
 378         memcpy(tag, ieee->current_network.ssid, len);
 379         tag += len;
 380
 381         rtllib_MFIE_Brate(ieee, &tag);
 382         rtllib_MFIE_Grate(ieee, &tag);
 383
 384         return skb;
 385 }
 386
 387 struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
 388
 389 static void rtllib_send_beacon(struct rtllib_device *ieee)
 390 {
 391         struct sk_buff *skb;
 392
 393         if (!ieee->ieee_up)
 394                 return;
 395         skb = rtllib_get_beacon_(ieee);
 396
 397         if (skb) {
 398                 softmac_mgmt_xmit(skb, ieee);
 399                 ieee->softmac_stats.tx_beacons++;
 400         }
 401
 402         if (ieee->beacon_txing && ieee->ieee_up)
 403                 mod_timer(&ieee->beacon_timer, jiffies +
 404                           (MSECS(ieee->current_network.beacon_interval - 5)));
 405 }
 406
 407
 408 static void rtllib_send_beacon_cb(unsigned long _ieee)
 409 {
 410         struct rtllib_device *ieee =
 411                 (struct rtllib_device *) _ieee;
 412         unsigned long flags;
 413
 414         spin_lock_irqsave(&ieee->beacon_lock, flags);
 415         rtllib_send_beacon(ieee);
 416         spin_unlock_irqrestore(&ieee->beacon_lock, flags);
 417 }
 418
 419 /*
 420  * Description:
 421  *            Enable network monitor mode, all rx packets will be received.
 422  */
 423 void rtllib_EnableNetMonitorMode(struct net_device *dev,
 424                 bool bInitState)
 425 {
 426         struct rtllib_device *ieee = netdev_priv_rsl(dev);
 427
 428         printk(KERN_INFO "========>Enter Monitor Mode\n");
 429
 430         ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
 431 }
 432
 433
 434 /*
 435  *      Description:
 436  *            Disable network network monitor mode, only packets destinated to
 437  *            us will be received.
 438  */
 439 void rtllib_DisableNetMonitorMode(struct net_device *dev,
 440                 bool bInitState)
 441 {
 442         struct rtllib_device *ieee = netdev_priv_rsl(dev);
 443
 444         printk(KERN_INFO "========>Exit Monitor Mode\n");
 445
 446         ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
 447 }
 448
 449
 450 /*
 451  * Description:
 452  * This enables the specialized promiscuous mode required by Intel.
 453  * In this mode, Intel intends to hear traffics from/to other STAs in the
 454  * same BSS. Therefore we don't have to disable checking BSSID and we only need
 455  * to allow all dest. BUT: if we enable checking BSSID then we can't recv
 456  * packets from other STA.
 457  */
 458 void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
 459                 bool bInitState)
 460 {
 461         bool bFilterOutNonAssociatedBSSID = false;
 462
 463         struct rtllib_device *ieee = netdev_priv_rsl(dev);
 464
 465         printk(KERN_INFO "========>Enter Intel Promiscuous Mode\n");
 466
 467         ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
 468         ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
 469                              (u8 *)&bFilterOutNonAssociatedBSSID);
 470
 471         ieee->bNetPromiscuousMode = true;
 472 }
 473 EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
 474
 475
 476 /*
 477  * Description:
 478  *            This disables the specialized promiscuous mode required by Intel.
 479  *            See MgntEnableIntelPromiscuousMode for detail.
 480  */
 481 void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
 482                 bool bInitState)
 483 {
 484         bool bFilterOutNonAssociatedBSSID = true;
 485
 486         struct rtllib_device *ieee = netdev_priv_rsl(dev);
 487
 488         printk(KERN_INFO "========>Exit Intel Promiscuous Mode\n");
 489
 490         ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
 491         ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
 492                              (u8 *)&bFilterOutNonAssociatedBSSID);
 493
 494         ieee->bNetPromiscuousMode = false;
 495 }
 496 EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
 497
 498 static void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
 499 {
 500         struct sk_buff *skb;
 501
 502         skb = rtllib_probe_req(ieee);
 503         if (skb) {
 504                 softmac_mgmt_xmit(skb, ieee);
 505                 ieee->softmac_stats.tx_probe_rq++;
 506         }
 507 }
 508
 509
 510 void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
 511 {
 512         if (ieee->active_scan && (ieee->softmac_features &
 513             IEEE_SOFTMAC_PROBERQ)) {
 514                 rtllib_send_probe(ieee, 0);
 515                 rtllib_send_probe(ieee, 0);
 516         }
 517 }
 518
 519 static void rtllib_softmac_hint11d_wq(void *data)
 520 {
 521 }
 522
 523 void rtllib_update_active_chan_map(struct rtllib_device *ieee)
 524 {
 525         memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map,
 526                MAX_CHANNEL_NUMBER+1);
 527 }
 528
 529 /* this performs syncro scan blocking the caller until all channels
 530  * in the allowed channel map has been checked.
 531  */
 532 void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
 533 {
 534         union iwreq_data wrqu;
 535         short ch = 0;
 536
 537         rtllib_update_active_chan_map(ieee);
 538
 539         ieee->be_scan_inprogress = true;
 540
 541         down(&ieee->scan_sem);
 542
 543         while (1) {
 544                 do {
 545                         ch++;
 546                         if (ch > MAX_CHANNEL_NUMBER)
 547                                 goto out; /* scan completed */
 548                 } while (!ieee->active_channel_map[ch]);
 549
 550                 /* this function can be called in two situations
 551                  * 1- We have switched to ad-hoc mode and we are
 552                  *    performing a complete syncro scan before conclude
 553                  *    there are no interesting cell and to create a
 554                  *    new one. In this case the link state is
 555                  *    RTLLIB_NOLINK until we found an interesting cell.
 556                  *    If so the ieee8021_new_net, called by the RX path
 557                  *    will set the state to RTLLIB_LINKED, so we stop
 558                  *    scanning
 559                  * 2- We are linked and the root uses run iwlist scan.
 560                  *    So we switch to RTLLIB_LINKED_SCANNING to remember
 561                  *    that we are still logically linked (not interested in
 562                  *    new network events, despite for updating the net list,
 563                  *    but we are temporarly 'unlinked' as the driver shall
 564                  *    not filter RX frames and the channel is changing.
 565                  * So the only situation in which are interested is to check
 566                  * if the state become LINKED because of the #1 situation
 567                  */
 568
 569                 if (ieee->state == RTLLIB_LINKED)
 570                         goto out;
 571                 if (ieee->sync_scan_hurryup) {
 572                         printk(KERN_INFO "============>sync_scan_hurryup out\n");
 573                         goto out;
 574                 }
 575
 576                 ieee->set_chan(ieee->dev, ch);
 577                 if (ieee->active_channel_map[ch] == 1)
 578                         rtllib_send_probe_requests(ieee, 0);
 579
 580                 /* this prevent excessive time wait when we
 581                  * need to wait for a syncro scan to end..
 582                  */
 583                 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
 584         }
 585 out:
 586         ieee->actscanning = false;
 587         ieee->sync_scan_hurryup = 0;
 588
 589         if (ieee->state >= RTLLIB_LINKED) {
 590                 if (IS_DOT11D_ENABLE(ieee))
 591                         DOT11D_ScanComplete(ieee);
 592         }
 593         up(&ieee->scan_sem);
 594
 595         ieee->be_scan_inprogress = false;
 596
 597         memset(&wrqu, 0, sizeof(wrqu));
 598         wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
 599 }
 600
 601 static void rtllib_softmac_scan_wq(void *data)
 602 {
 603         struct rtllib_device *ieee = container_of_dwork_rsl(data,
 604                                      struct rtllib_device, softmac_scan_wq);
 605         u8 last_channel = ieee->current_network.channel;
 606
 607         rtllib_update_active_chan_map(ieee);
 608
 609         if (!ieee->ieee_up)
 610                 return;
 611         if (rtllib_act_scanning(ieee, true))
 612                 return;
 613
 614         down(&ieee->scan_sem);
 615
 616         if (ieee->eRFPowerState == eRfOff) {
 617                 printk(KERN_INFO "======>%s():rf state is eRfOff, return\n",
 618                        __func__);
 619                 goto out1;
 620         }
 621
 622         do {
 623                 ieee->current_network.channel =
 624                         (ieee->current_network.channel + 1) %
 625                         MAX_CHANNEL_NUMBER;
 626                 if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER) {
 627                         if (!ieee->active_channel_map[ieee->current_network.channel])
 628                                 ieee->current_network.channel = 6;
 629                         goto out; /* no good chans */
 630                 }
 631         } while (!ieee->active_channel_map[ieee->current_network.channel]);
 632
 633         if (ieee->scanning_continue == 0)
 634                 goto out;
 635
 636         ieee->set_chan(ieee->dev, ieee->current_network.channel);
 637
 638         if (ieee->active_channel_map[ieee->current_network.channel] == 1)
 639                 rtllib_send_probe_requests(ieee, 0);
 640
 641         queue_delayed_work_rsl(ieee->wq, &ieee->softmac_scan_wq,
 642                                MSECS(RTLLIB_SOFTMAC_SCAN_TIME));
 643
 644         up(&ieee->scan_sem);
 645         return;
 646
 647 out:
 648         if (IS_DOT11D_ENABLE(ieee))
 649                 DOT11D_ScanComplete(ieee);
 650         ieee->current_network.channel = last_channel;
 651
 652 out1:
 653         ieee->actscanning = false;
 654         ieee->scan_watch_dog = 0;
 655         ieee->scanning_continue = 0;
 656         up(&ieee->scan_sem);
 657 }
 658
 659
 660
 661 static void rtllib_beacons_start(struct rtllib_device *ieee)
 662 {
 663         unsigned long flags;
 664
 665         spin_lock_irqsave(&ieee->beacon_lock, flags);
 666
 667         ieee->beacon_txing = 1;
 668         rtllib_send_beacon(ieee);
 669
 670         spin_unlock_irqrestore(&ieee->beacon_lock, flags);
 671 }
 672
 673 static void rtllib_beacons_stop(struct rtllib_device *ieee)
 674 {
 675         unsigned long flags;
 676
 677         spin_lock_irqsave(&ieee->beacon_lock, flags);
 678
 679         ieee->beacon_txing = 0;
 680         del_timer_sync(&ieee->beacon_timer);
 681
 682         spin_unlock_irqrestore(&ieee->beacon_lock, flags);
 683
 684 }
 685
 686
 687 void rtllib_stop_send_beacons(struct rtllib_device *ieee)
 688 {
 689         if (ieee->stop_send_beacons)
 690                 ieee->stop_send_beacons(ieee->dev);
 691         if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
 692                 rtllib_beacons_stop(ieee);
 693 }
 694 EXPORT_SYMBOL(rtllib_stop_send_beacons);
 695
 696
 697 void rtllib_start_send_beacons(struct rtllib_device *ieee)
 698 {
 699         if (ieee->start_send_beacons)
 700                 ieee->start_send_beacons(ieee->dev);
 701         if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
 702                 rtllib_beacons_start(ieee);
 703 }
 704 EXPORT_SYMBOL(rtllib_start_send_beacons);
 705
 706
 707 static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
 708 {
 709         down(&ieee->scan_sem);
 710         ieee->scan_watch_dog = 0;
 711         if (ieee->scanning_continue == 1) {
 712                 ieee->scanning_continue = 0;
 713                 ieee->actscanning = false;
 714
 715                 cancel_delayed_work(&ieee->softmac_scan_wq);
 716         }
 717
 718         up(&ieee->scan_sem);
 719 }
 720
 721 void rtllib_stop_scan(struct rtllib_device *ieee)
 722 {
 723         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
 724                 rtllib_softmac_stop_scan(ieee);
 725         } else {
 726                 if (ieee->rtllib_stop_hw_scan)
 727                         ieee->rtllib_stop_hw_scan(ieee->dev);
 728         }
 729 }
 730 EXPORT_SYMBOL(rtllib_stop_scan);
 731
 732 void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
 733 {
 734         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
 735                         ieee->sync_scan_hurryup = 1;
 736         } else {
 737                 if (ieee->rtllib_stop_hw_scan)
 738                         ieee->rtllib_stop_hw_scan(ieee->dev);
 739         }
 740 }
 741 EXPORT_SYMBOL(rtllib_stop_scan_syncro);
 742
 743 bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
 744 {
 745         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
 746                 if (sync_scan)
 747                         return ieee->be_scan_inprogress;
 748                 else
 749                         return ieee->actscanning || ieee->be_scan_inprogress;
 750         } else {
 751                 return test_bit(STATUS_SCANNING, &ieee->status);
 752         }
 753 }
 754 EXPORT_SYMBOL(rtllib_act_scanning);
 755
 756 /* called with ieee->lock held */
 757 static void rtllib_start_scan(struct rtllib_device *ieee)
 758 {
 759         RT_TRACE(COMP_DBG, "===>%s()\n", __func__);
 760         if (ieee->rtllib_ips_leave_wq != NULL)
 761                 ieee->rtllib_ips_leave_wq(ieee->dev);
 762
 763         if (IS_DOT11D_ENABLE(ieee)) {
 764                 if (IS_COUNTRY_IE_VALID(ieee))
 765                         RESET_CIE_WATCHDOG(ieee);
 766         }
 767         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
 768                 if (ieee->scanning_continue == 0) {
 769                         ieee->actscanning = true;
 770                         ieee->scanning_continue = 1;
 771                         queue_delayed_work_rsl(ieee->wq,
 772                                                &ieee->softmac_scan_wq, 0);
 773                 }
 774         } else {
 775                 if (ieee->rtllib_start_hw_scan)
 776                         ieee->rtllib_start_hw_scan(ieee->dev);
 777         }
 778 }
 779
 780 /* called with wx_sem held */
 781 void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
 782 {
 783         if (IS_DOT11D_ENABLE(ieee)) {
 784                 if (IS_COUNTRY_IE_VALID(ieee))
 785                         RESET_CIE_WATCHDOG(ieee);
 786         }
 787         ieee->sync_scan_hurryup = 0;
 788         if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
 789                 rtllib_softmac_scan_syncro(ieee, is_mesh);
 790         } else {
 791                 if (ieee->rtllib_start_hw_scan)
 792                         ieee->rtllib_start_hw_scan(ieee->dev);
 793         }
 794 }
 795 EXPORT_SYMBOL(rtllib_start_scan_syncro);
 796
 797 inline struct sk_buff *rtllib_authentication_req(struct rtllib_network *beacon,
 798         struct rtllib_device *ieee, int challengelen, u8 *daddr)
 799 {
 800         struct sk_buff *skb;
 801         struct rtllib_authentication *auth;
 802         int  len = 0;
 803
 804         len = sizeof(struct rtllib_authentication) + challengelen +
 805                      ieee->tx_headroom + 4;
 806         skb = dev_alloc_skb(len);
 807
 808         if (!skb)
 809                 return NULL;
 810
 811         skb_reserve(skb, ieee->tx_headroom);
 812
 813         auth = (struct rtllib_authentication *)
 814                 skb_put(skb, sizeof(struct rtllib_authentication));
 815
 816         auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
 817         if (challengelen)
 818                 auth->header.frame_ctl |= cpu_to_le16(RTLLIB_FCTL_WEP);
 819
 820         auth->header.duration_id = cpu_to_le16(0x013a);
 821         memcpy(auth->header.addr1, beacon->bssid, ETH_ALEN);
 822         memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 823         memcpy(auth->header.addr3, beacon->bssid, ETH_ALEN);
 824         if (ieee->auth_mode == 0)
 825                 auth->algorithm = WLAN_AUTH_OPEN;
 826         else if (ieee->auth_mode == 1)
 827                 auth->algorithm = cpu_to_le16(WLAN_AUTH_SHARED_KEY);
 828         else if (ieee->auth_mode == 2)
 829                 auth->algorithm = WLAN_AUTH_OPEN;
 830         auth->transaction = cpu_to_le16(ieee->associate_seq);
 831         ieee->associate_seq++;
 832
 833         auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
 834
 835         return skb;
 836 }
 837
 838 static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee, u8 *dest)
 839 {
 840         u8 *tag;
 841         int beacon_size;
 842         struct rtllib_probe_response *beacon_buf;
 843         struct sk_buff *skb = NULL;
 844         int encrypt;
 845         int atim_len, erp_len;
 846         struct lib80211_crypt_data *crypt;
 847
 848         char *ssid = ieee->current_network.ssid;
 849         int ssid_len = ieee->current_network.ssid_len;
 850         int rate_len = ieee->current_network.rates_len+2;
 851         int rate_ex_len = ieee->current_network.rates_ex_len;
 852         int wpa_ie_len = ieee->wpa_ie_len;
 853         u8 erpinfo_content = 0;
 854
 855         u8 *tmp_ht_cap_buf = NULL;
 856         u8 tmp_ht_cap_len = 0;
 857         u8 *tmp_ht_info_buf = NULL;
 858         u8 tmp_ht_info_len = 0;
 859         struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
 860         u8 *tmp_generic_ie_buf = NULL;
 861         u8 tmp_generic_ie_len = 0;
 862
 863         if (rate_ex_len > 0)
 864                 rate_ex_len += 2;
 865
 866         if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
 867                 atim_len = 4;
 868         else
 869                 atim_len = 0;
 870
 871         if ((ieee->current_network.mode == IEEE_G) ||
 872            (ieee->current_network.mode == IEEE_N_24G &&
 873            ieee->pHTInfo->bCurSuppCCK)) {
 874                 erp_len = 3;
 875                 erpinfo_content = 0;
 876                 if (ieee->current_network.buseprotection)
 877                         erpinfo_content |= ERP_UseProtection;
 878         } else
 879                 erp_len = 0;
 880
 881         crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 882         encrypt = ieee->host_encrypt && crypt && crypt->ops &&
 883                 ((0 == strcmp(crypt->ops->name, "R-WEP") || wpa_ie_len));
 884         if (ieee->pHTInfo->bCurrentHTSupport) {
 885                 tmp_ht_cap_buf = (u8 *) &(ieee->pHTInfo->SelfHTCap);
 886                 tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
 887                 tmp_ht_info_buf = (u8 *) &(ieee->pHTInfo->SelfHTInfo);
 888                 tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
 889                 HTConstructCapabilityElement(ieee, tmp_ht_cap_buf,
 890                                              &tmp_ht_cap_len, encrypt, false);
 891                 HTConstructInfoElement(ieee, tmp_ht_info_buf, &tmp_ht_info_len,
 892                                        encrypt);
 893
 894                 if (pHTInfo->bRegRT2RTAggregation) {
 895                         tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
 896                         tmp_generic_ie_len =
 897                                  sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
 898                         HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf,
 899                                                    &tmp_generic_ie_len);
 900                 }
 901         }
 902
 903         beacon_size = sizeof(struct rtllib_probe_response)+2+
 904                 ssid_len + 3 + rate_len + rate_ex_len + atim_len + erp_len
 905                 + wpa_ie_len + ieee->tx_headroom;
 906         skb = dev_alloc_skb(beacon_size);
 907         if (!skb)
 908                 return NULL;
 909
 910         skb_reserve(skb, ieee->tx_headroom);
 911
 912         beacon_buf = (struct rtllib_probe_response *) skb_put(skb,
 913                      (beacon_size - ieee->tx_headroom));
 914         memcpy(beacon_buf->header.addr1, dest, ETH_ALEN);
 915         memcpy(beacon_buf->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
 916         memcpy(beacon_buf->header.addr3, ieee->current_network.bssid, ETH_ALEN);
 917
 918         beacon_buf->header.duration_id = 0;
 919         beacon_buf->beacon_interval =
 920                 cpu_to_le16(ieee->current_network.beacon_interval);
 921         beacon_buf->capability =
 922                 cpu_to_le16(ieee->current_network.capability &
 923                 WLAN_CAPABILITY_IBSS);
 924         beacon_buf->capability |=
 925                 cpu_to_le16(ieee->current_network.capability &
 926                 WLAN_CAPABILITY_SHORT_PREAMBLE);
 927
 928         if (ieee->short_slot && (ieee->current_network.capability &
 929             WLAN_CAPABILITY_SHORT_SLOT_TIME))
 930                 beacon_buf->capability |=
 931                         cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
 932
 933         crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
 934         if (encrypt)
 935                 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
 936
 937
 938         beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
 939         beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
 940         beacon_buf->info_element[0].len = ssid_len;
 941
 942         tag = (u8 *) beacon_buf->info_element[0].data;
 943
 944         memcpy(tag, ssid, ssid_len);
 945
 946         tag += ssid_len;
 947
 948         *(tag++) = MFIE_TYPE_RATES;
 949         *(tag++) = rate_len-2;
 950         memcpy(tag, ieee->current_network.rates, rate_len-2);
 951         tag += rate_len-2;
 952
 953         *(tag++) = MFIE_TYPE_DS_SET;
 954         *(tag++) = 1;
 955         *(tag++) = ieee->current_network.channel;
 956
 957         if (atim_len) {
 958                 u16 val16;
 959                 *(tag++) = MFIE_TYPE_IBSS_SET;
 960                 *(tag++) = 2;
 961                 val16 = ieee->current_network.atim_window;
 962                 memcpy((u8 *)tag, (u8 *)&val16, 2);
 963                 tag += 2;
 964         }
 965
 966         if (erp_len) {
 967                 *(tag++) = MFIE_TYPE_ERP;
 968                 *(tag++) = 1;
 969                 *(tag++) = erpinfo_content;
 970         }
 971         if (rate_ex_len) {
 972                 *(tag++) = MFIE_TYPE_RATES_EX;
 973                 *(tag++) = rate_ex_len-2;
 974                 memcpy(tag, ieee->current_network.rates_ex, rate_ex_len-2);
 975                 tag += rate_ex_len-2;
 976         }
 977
 978         if (wpa_ie_len) {
 979                 if (ieee->iw_mode == IW_MODE_ADHOC)
 980                         memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
 981                 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
 982                 tag += ieee->wpa_ie_len;
 983         }
 984         return skb;
 985 }
 986
 987 static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
 988 {
 989         struct sk_buff *skb;
 990         u8 *tag;
 991
 992         struct lib80211_crypt_data *crypt;
 993         struct rtllib_assoc_response_frame *assoc;
 994         short encrypt;
 995
 996         unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
 997         int len = sizeof(struct rtllib_assoc_response_frame) + rate_len +
 998                   ieee->tx_headroom;
 999
1000         skb = dev_alloc_skb(len);
1001
1002         if (!skb)
1003                 return NULL;
1004
1005         skb_reserve(skb, ieee->tx_headroom);
1006
1007         assoc = (struct rtllib_assoc_response_frame *)
1008                 skb_put(skb, sizeof(struct rtllib_assoc_response_frame));
1009
1010         assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
1011         memcpy(assoc->header.addr1, dest, ETH_ALEN);
1012         memcpy(assoc->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
1013         memcpy(assoc->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1014         assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
1015                 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);
1016
1017
1018         if (ieee->short_slot)
1019                 assoc->capability |=
1020                                  cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1021
1022         if (ieee->host_encrypt)
1023                 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
1024         else
1025                 crypt = NULL;
1026
1027         encrypt = (crypt && crypt->ops);
1028
1029         if (encrypt)
1030                 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1031
1032         assoc->status = 0;
1033         assoc->aid = cpu_to_le16(ieee->assoc_id);
1034         if (ieee->assoc_id == 0x2007)
1035                 ieee->assoc_id = 0;
1036         else
1037                 ieee->assoc_id++;
1038
1039         tag = (u8 *) skb_put(skb, rate_len);
1040         rtllib_MFIE_Brate(ieee, &tag);
1041         rtllib_MFIE_Grate(ieee, &tag);
1042
1043         return skb;
1044 }
1045
1046 static struct sk_buff *rtllib_auth_resp(struct rtllib_device *ieee, int status,
1047                                  u8 *dest)
1048 {
1049         struct sk_buff *skb = NULL;
1050         struct rtllib_authentication *auth;
1051         int len = ieee->tx_headroom + sizeof(struct rtllib_authentication) + 1;
1052
1053         skb = dev_alloc_skb(len);
1054         if (!skb)
1055                 return NULL;
1056
1057         skb->len = sizeof(struct rtllib_authentication);
1058
1059         skb_reserve(skb, ieee->tx_headroom);
1060
1061         auth = (struct rtllib_authentication *)
1062                 skb_put(skb, sizeof(struct rtllib_authentication));
1063
1064         auth->status = cpu_to_le16(status);
1065         auth->transaction = cpu_to_le16(2);
1066         auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
1067
1068         memcpy(auth->header.addr3, ieee->dev->dev_addr, ETH_ALEN);
1069         memcpy(auth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1070         memcpy(auth->header.addr1, dest, ETH_ALEN);
1071         auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
1072         return skb;
1073
1074
1075 }
1076
1077 static struct sk_buff *rtllib_null_func(struct rtllib_device *ieee, short pwr)
1078 {
1079         struct sk_buff *skb;
1080         struct rtllib_hdr_3addr *hdr;
1081
1082         skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
1083         if (!skb)
1084                 return NULL;
1085
1086         skb_reserve(skb, ieee->tx_headroom);
1087
1088         hdr = (struct rtllib_hdr_3addr *)skb_put(skb,
1089               sizeof(struct rtllib_hdr_3addr));
1090
1091         memcpy(hdr->addr1, ieee->current_network.bssid, ETH_ALEN);
1092         memcpy(hdr->addr2, ieee->dev->dev_addr, ETH_ALEN);
1093         memcpy(hdr->addr3, ieee->current_network.bssid, ETH_ALEN);
1094
1095         hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
1096                 RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
1097                 (pwr ? RTLLIB_FCTL_PM : 0));
1098
1099         return skb;
1100
1101
1102 }
1103
1104 static struct sk_buff *rtllib_pspoll_func(struct rtllib_device *ieee)
1105 {
1106         struct sk_buff *skb;
1107         struct rtllib_pspoll_hdr *hdr;
1108
1109         skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
1110         if (!skb)
1111                 return NULL;
1112
1113         skb_reserve(skb, ieee->tx_headroom);
1114
1115         hdr = (struct rtllib_pspoll_hdr *)skb_put(skb,
1116               sizeof(struct rtllib_pspoll_hdr));
1117
1118         memcpy(hdr->bssid, ieee->current_network.bssid, ETH_ALEN);
1119         memcpy(hdr->ta, ieee->dev->dev_addr, ETH_ALEN);
1120
1121         hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
1122         hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL | RTLLIB_STYPE_PSPOLL |
1123                          RTLLIB_FCTL_PM);
1124
1125         return skb;
1126
1127 }
1128
1129 static void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8 *dest)
1130 {
1131         struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);
1132
1133         if (buf)
1134                 softmac_mgmt_xmit(buf, ieee);
1135 }
1136
1137
1138 static void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8 *dest)
1139 {
1140         struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);
1141
1142         if (buf)
1143                 softmac_mgmt_xmit(buf, ieee);
1144 }
1145
1146
1147 static void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
1148 {
1149         struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
1150
1151         if (buf)
1152                 softmac_mgmt_xmit(buf, ieee);
1153 }
1154
1155
1156 inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
1157 {
1158         int i = 0;
1159
1160         do {
1161                 if ((ieee->PMKIDList[i].bUsed) &&
1162                    (memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
1163                         break;
1164                 i++;
1165         } while (i < NUM_PMKID_CACHE);
1166
1167         if (i == NUM_PMKID_CACHE)
1168                 i = -1;
1169         return i;
1170 }
1171
1172 inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,
1173                                               struct rtllib_device *ieee)
1174 {
1175         struct sk_buff *skb;
1176         struct rtllib_assoc_request_frame *hdr;
1177         u8 *tag, *ies;
1178         int i;
1179         u8 *ht_cap_buf = NULL;
1180         u8 ht_cap_len = 0;
1181         u8 *realtek_ie_buf = NULL;
1182         u8 realtek_ie_len = 0;
1183         int wpa_ie_len = ieee->wpa_ie_len;
1184         int wps_ie_len = ieee->wps_ie_len;
1185         unsigned int ckip_ie_len = 0;
1186         unsigned int ccxrm_ie_len = 0;
1187         unsigned int cxvernum_ie_len = 0;
1188         struct lib80211_crypt_data *crypt;
1189         int encrypt;
1190         int     PMKCacheIdx;
1191
1192         unsigned int rate_len = (beacon->rates_len ?
1193                                 (beacon->rates_len + 2) : 0) +
1194                                 (beacon->rates_ex_len ? (beacon->rates_ex_len) +
1195                                 2 : 0);
1196
1197         unsigned int wmm_info_len = beacon->qos_data.supported ? 9 : 0;
1198         unsigned int turbo_info_len = beacon->Turbo_Enable ? 9 : 0;
1199
1200         int len = 0;
1201
1202         crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
1203         if (crypt != NULL)
1204                 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
1205                           ((0 == strcmp(crypt->ops->name, "R-WEP") ||
1206                           wpa_ie_len));
1207         else
1208                 encrypt = 0;
1209
1210         if ((ieee->rtllib_ap_sec_type &&
1211             (ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
1212             ieee->bForcedBgMode) {
1213                 ieee->pHTInfo->bEnableHT = 0;
1214                 ieee->mode = WIRELESS_MODE_G;
1215         }
1216
1217         if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1218                 ht_cap_buf = (u8 *)&(ieee->pHTInfo->SelfHTCap);
1219                 ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
1220                 HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len,
1221                                              encrypt, true);
1222                 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1223                         realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
1224                         realtek_ie_len =
1225                                  sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
1226                         HTConstructRT2RTAggElement(ieee, realtek_ie_buf,
1227                                                    &realtek_ie_len);
1228                 }
1229         }
1230
1231         if (beacon->bCkipSupported)
1232                 ckip_ie_len = 30+2;
1233         if (beacon->bCcxRmEnable)
1234                 ccxrm_ie_len = 6+2;
1235         if (beacon->BssCcxVerNumber >= 2)
1236                 cxvernum_ie_len = 5+2;
1237
1238         PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
1239         if (PMKCacheIdx >= 0) {
1240                 wpa_ie_len += 18;
1241                 printk(KERN_INFO "[PMK cache]: WPA2 IE length: %x\n",
1242                        wpa_ie_len);
1243         }
1244         len = sizeof(struct rtllib_assoc_request_frame) + 2
1245                 + beacon->ssid_len
1246                 + rate_len
1247                 + wpa_ie_len
1248                 + wps_ie_len
1249                 + wmm_info_len
1250                 + turbo_info_len
1251                 + ht_cap_len
1252                 + realtek_ie_len
1253                 + ckip_ie_len
1254                 + ccxrm_ie_len
1255                 + cxvernum_ie_len
1256                 + ieee->tx_headroom;
1257
1258         skb = dev_alloc_skb(len);
1259
1260         if (!skb)
1261                 return NULL;
1262
1263         skb_reserve(skb, ieee->tx_headroom);
1264
1265         hdr = (struct rtllib_assoc_request_frame *)
1266                 skb_put(skb, sizeof(struct rtllib_assoc_request_frame) + 2);
1267
1268
1269         hdr->header.frame_ctl = RTLLIB_STYPE_ASSOC_REQ;
1270         hdr->header.duration_id = cpu_to_le16(37);
1271         memcpy(hdr->header.addr1, beacon->bssid, ETH_ALEN);
1272         memcpy(hdr->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
1273         memcpy(hdr->header.addr3, beacon->bssid, ETH_ALEN);
1274
1275         memcpy(ieee->ap_mac_addr, beacon->bssid, ETH_ALEN);
1276
1277         hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
1278         if (beacon->capability & WLAN_CAPABILITY_PRIVACY)
1279                 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1280
1281         if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1282                 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1283
1284         if (ieee->short_slot &&
1285            (beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
1286                 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1287
1288
1289         hdr->listen_interval = cpu_to_le16(beacon->listen_interval);
1290
1291         hdr->info_element[0].id = MFIE_TYPE_SSID;
1292
1293         hdr->info_element[0].len = beacon->ssid_len;
1294         tag = skb_put(skb, beacon->ssid_len);
1295         memcpy(tag, beacon->ssid, beacon->ssid_len);
1296
1297         tag = skb_put(skb, rate_len);
1298
1299         if (beacon->rates_len) {
1300                 *tag++ = MFIE_TYPE_RATES;
1301                 *tag++ = beacon->rates_len;
1302                 for (i = 0; i < beacon->rates_len; i++)
1303                         *tag++ = beacon->rates[i];
1304         }
1305
1306         if (beacon->rates_ex_len) {
1307                 *tag++ = MFIE_TYPE_RATES_EX;
1308                 *tag++ = beacon->rates_ex_len;
1309                 for (i = 0; i < beacon->rates_ex_len; i++)
1310                         *tag++ = beacon->rates_ex[i];
1311         }
1312
1313         if (beacon->bCkipSupported) {
1314                 static u8       AironetIeOui[] = {0x00, 0x01, 0x66};
1315                 u8      CcxAironetBuf[30];
1316                 struct octet_string osCcxAironetIE;
1317
1318                 memset(CcxAironetBuf, 0, 30);
1319                 osCcxAironetIE.Octet = CcxAironetBuf;
1320                 osCcxAironetIE.Length = sizeof(CcxAironetBuf);
1321                 memcpy(osCcxAironetIE.Octet, AironetIeOui,
1322                        sizeof(AironetIeOui));
1323
1324                 osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |=
1325                                          (SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC);
1326                 tag = skb_put(skb, ckip_ie_len);
1327                 *tag++ = MFIE_TYPE_AIRONET;
1328                 *tag++ = osCcxAironetIE.Length;
1329                 memcpy(tag, osCcxAironetIE.Octet, osCcxAironetIE.Length);
1330                 tag += osCcxAironetIE.Length;
1331         }
1332
1333         if (beacon->bCcxRmEnable) {
1334                 static u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01, 0x00};
1335                 struct octet_string osCcxRmCap;
1336
1337                 osCcxRmCap.Octet = CcxRmCapBuf;
1338                 osCcxRmCap.Length = sizeof(CcxRmCapBuf);
1339                 tag = skb_put(skb, ccxrm_ie_len);
1340                 *tag++ = MFIE_TYPE_GENERIC;
1341                 *tag++ = osCcxRmCap.Length;
1342                 memcpy(tag, osCcxRmCap.Octet, osCcxRmCap.Length);
1343                 tag += osCcxRmCap.Length;
1344         }
1345
1346         if (beacon->BssCcxVerNumber >= 2) {
1347                 u8 CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
1348                 struct octet_string osCcxVerNum;
1349
1350                 CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
1351                 osCcxVerNum.Octet = CcxVerNumBuf;
1352                 osCcxVerNum.Length = sizeof(CcxVerNumBuf);
1353                 tag = skb_put(skb, cxvernum_ie_len);
1354                 *tag++ = MFIE_TYPE_GENERIC;
1355                 *tag++ = osCcxVerNum.Length;
1356                 memcpy(tag, osCcxVerNum.Octet, osCcxVerNum.Length);
1357                 tag += osCcxVerNum.Length;
1358         }
1359         if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1360                 if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC) {
1361                         tag = skb_put(skb, ht_cap_len);
1362                         *tag++ = MFIE_TYPE_HT_CAP;
1363                         *tag++ = ht_cap_len - 2;
1364                         memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1365                         tag += ht_cap_len - 2;
1366                 }
1367         }
1368
1369         if (wpa_ie_len) {
1370                 tag = skb_put(skb, ieee->wpa_ie_len);
1371                 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
1372
1373                 if (PMKCacheIdx >= 0) {
1374                         tag = skb_put(skb, 18);
1375                         *tag = 1;
1376                         *(tag + 1) = 0;
1377                         memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID,
1378                                16);
1379                 }
1380         }
1381         if (wmm_info_len) {
1382                 tag = skb_put(skb, wmm_info_len);
1383                 rtllib_WMM_Info(ieee, &tag);
1384         }
1385
1386         if (wps_ie_len && ieee->wps_ie) {
1387                 tag = skb_put(skb, wps_ie_len);
1388                 memcpy(tag, ieee->wps_ie, wps_ie_len);
1389         }
1390
1391         tag = skb_put(skb, turbo_info_len);
1392         if (turbo_info_len)
1393                 rtllib_TURBO_Info(ieee, &tag);
1394
1395         if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1396                 if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC) {
1397                         tag = skb_put(skb, ht_cap_len);
1398                         *tag++ = MFIE_TYPE_GENERIC;
1399                         *tag++ = ht_cap_len - 2;
1400                         memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1401                         tag += ht_cap_len - 2;
1402                 }
1403
1404                 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1405                         tag = skb_put(skb, realtek_ie_len);
1406                         *tag++ = MFIE_TYPE_GENERIC;
1407                         *tag++ = realtek_ie_len - 2;
1408                         memcpy(tag, realtek_ie_buf, realtek_ie_len - 2);
1409                 }
1410         }
1411
1412         kfree(ieee->assocreq_ies);
1413         ieee->assocreq_ies = NULL;
1414         ies = &(hdr->info_element[0].id);
1415         ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
1416         ieee->assocreq_ies = kmalloc(ieee->assocreq_ies_len, GFP_ATOMIC);
1417         if (ieee->assocreq_ies)
1418                 memcpy(ieee->assocreq_ies, ies, ieee->assocreq_ies_len);
1419         else {
1420                 printk(KERN_INFO "%s()Warning: can't alloc memory for assocreq"
1421                        "_ies\n", __func__);
1422                 ieee->assocreq_ies_len = 0;
1423         }
1424         return skb;
1425 }
1426
1427 void rtllib_associate_abort(struct rtllib_device *ieee)
1428 {
1429         unsigned long flags;
1430
1431         spin_lock_irqsave(&ieee->lock, flags);
1432
1433         ieee->associate_seq++;
1434
1435         /* don't scan, and avoid to have the RX path possibily
1436          * try again to associate. Even do not react to AUTH or
1437          * ASSOC response. Just wait for the retry wq to be scheduled.
1438          * Here we will check if there are good nets to associate
1439          * with, so we retry or just get back to NO_LINK and scanning
1440          */
1441         if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING) {
1442                 RTLLIB_DEBUG_MGMT("Authentication failed\n");
1443                 ieee->softmac_stats.no_auth_rs++;
1444         } else {
1445                 RTLLIB_DEBUG_MGMT("Association failed\n");
1446                 ieee->softmac_stats.no_ass_rs++;
1447         }
1448
1449         ieee->state = RTLLIB_ASSOCIATING_RETRY;
1450
1451         queue_delayed_work_rsl(ieee->wq, &ieee->associate_retry_wq,
1452                            RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
1453
1454         spin_unlock_irqrestore(&ieee->lock, flags);
1455 }
1456
1457 static void rtllib_associate_abort_cb(unsigned long dev)
1458 {
1459         rtllib_associate_abort((struct rtllib_device *) dev);
1460 }
1461
1462 static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
1463 {
1464         struct rtllib_network *beacon = &ieee->current_network;
1465         struct sk_buff *skb;
1466
1467         RTLLIB_DEBUG_MGMT("Stopping scan\n");
1468
1469         ieee->softmac_stats.tx_auth_rq++;
1470
1471         skb = rtllib_authentication_req(beacon, ieee, 0, daddr);
1472
1473         if (!skb)
1474                 rtllib_associate_abort(ieee);
1475         else {
1476                 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING ;
1477                 RTLLIB_DEBUG_MGMT("Sending authentication request\n");
1478                 softmac_mgmt_xmit(skb, ieee);
1479                 if (!timer_pending(&ieee->associate_timer)) {
1480                         ieee->associate_timer.expires = jiffies + (HZ / 2);
1481                         add_timer(&ieee->associate_timer);
1482                 }
1483         }
1484 }
1485
1486 static void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge, int chlen)
1487 {
1488         u8 *c;
1489         struct sk_buff *skb;
1490         struct rtllib_network *beacon = &ieee->current_network;
1491
1492         ieee->associate_seq++;
1493         ieee->softmac_stats.tx_auth_rq++;
1494
1495         skb = rtllib_authentication_req(beacon, ieee, chlen + 2, beacon->bssid);
1496
1497         if (!skb)
1498                 rtllib_associate_abort(ieee);
1499         else {
1500                 c = skb_put(skb, chlen+2);
1501                 *(c++) = MFIE_TYPE_CHALLENGE;
1502                 *(c++) = chlen;
1503                 memcpy(c, challenge, chlen);
1504
1505                 RTLLIB_DEBUG_MGMT("Sending authentication challenge "
1506                                   "response\n");
1507
1508                 rtllib_encrypt_fragment(ieee, skb,
1509                                         sizeof(struct rtllib_hdr_3addr));
1510
1511                 softmac_mgmt_xmit(skb, ieee);
1512                 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1513         }
1514         kfree(challenge);
1515 }
1516
1517 static void rtllib_associate_step2(struct rtllib_device *ieee)
1518 {
1519         struct sk_buff *skb;
1520         struct rtllib_network *beacon = &ieee->current_network;
1521
1522         del_timer_sync(&ieee->associate_timer);
1523
1524         RTLLIB_DEBUG_MGMT("Sending association request\n");
1525
1526         ieee->softmac_stats.tx_ass_rq++;
1527         skb = rtllib_association_req(beacon, ieee);
1528         if (!skb)
1529                 rtllib_associate_abort(ieee);
1530         else {
1531                 softmac_mgmt_xmit(skb, ieee);
1532                 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1533         }
1534 }
1535
1536 #define CANCELLED  2
1537 static void rtllib_associate_complete_wq(void *data)
1538 {
1539         struct rtllib_device *ieee = (struct rtllib_device *)
1540                                      container_of_work_rsl(data,
1541                                      struct rtllib_device,
1542                                      associate_complete_wq);
1543         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1544                                         (&(ieee->PowerSaveControl));
1545         printk(KERN_INFO "Associated successfully\n");
1546         if (!ieee->is_silent_reset) {
1547                 printk(KERN_INFO "normal associate\n");
1548                 notify_wx_assoc_event(ieee);
1549         }
1550
1551         netif_carrier_on(ieee->dev);
1552         ieee->is_roaming = false;
1553         if (rtllib_is_54g(&ieee->current_network) &&
1554            (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
1555                 ieee->rate = 108;
1556                 printk(KERN_INFO"Using G rates:%d\n", ieee->rate);
1557         } else {
1558                 ieee->rate = 22;
1559                 ieee->SetWirelessMode(ieee->dev, IEEE_B);
1560                 printk(KERN_INFO"Using B rates:%d\n", ieee->rate);
1561         }
1562         if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1563                 printk(KERN_INFO "Successfully associated, ht enabled\n");
1564                 HTOnAssocRsp(ieee);
1565         } else {
1566                 printk(KERN_INFO "Successfully associated, ht not "
1567                        "enabled(%d, %d)\n",
1568                        ieee->pHTInfo->bCurrentHTSupport,
1569                        ieee->pHTInfo->bEnableHT);
1570                 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1571         }
1572         ieee->LinkDetectInfo.SlotNum = 2 * (1 +
1573                                        ieee->current_network.beacon_interval /
1574                                        500);
1575         if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 ||
1576             ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) {
1577                 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
1578                 ieee->LinkDetectInfo.NumRecvDataInPeriod = 1;
1579         }
1580         pPSC->LpsIdleCount = 0;
1581         ieee->link_change(ieee->dev);
1582
1583         if (ieee->is_silent_reset) {
1584                 printk(KERN_INFO "silent reset associate\n");
1585                 ieee->is_silent_reset = false;
1586         }
1587
1588         if (ieee->data_hard_resume)
1589                 ieee->data_hard_resume(ieee->dev);
1590
1591 }
1592
1593 static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
1594 {
1595 }
1596
1597 static void rtllib_associate_complete(struct rtllib_device *ieee)
1598 {
1599         del_timer_sync(&ieee->associate_timer);
1600
1601         ieee->state = RTLLIB_LINKED;
1602         rtllib_sta_send_associnfo(ieee);
1603
1604         queue_work_rsl(ieee->wq, &ieee->associate_complete_wq);
1605 }
1606
1607 static void rtllib_associate_procedure_wq(void *data)
1608 {
1609         struct rtllib_device *ieee = container_of_dwork_rsl(data,
1610                                      struct rtllib_device,
1611                                      associate_procedure_wq);
1612         rtllib_stop_scan_syncro(ieee);
1613         if (ieee->rtllib_ips_leave != NULL)
1614                 ieee->rtllib_ips_leave(ieee->dev);
1615         down(&ieee->wx_sem);
1616
1617         if (ieee->data_hard_stop)
1618                 ieee->data_hard_stop(ieee->dev);
1619
1620         rtllib_stop_scan(ieee);
1621         RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__,
1622                  ieee->current_network.channel);
1623         HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
1624         if (ieee->eRFPowerState == eRfOff) {
1625                 RT_TRACE(COMP_DBG, "=============>%s():Rf state is eRfOff,"
1626                          " schedule ipsleave wq again,return\n", __func__);
1627                 if (ieee->rtllib_ips_leave_wq != NULL)
1628                         ieee->rtllib_ips_leave_wq(ieee->dev);
1629                 up(&ieee->wx_sem);
1630                 return;
1631         }
1632         ieee->associate_seq = 1;
1633
1634         rtllib_associate_step1(ieee, ieee->current_network.bssid);
1635
1636         up(&ieee->wx_sem);
1637 }
1638
1639 inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
1640                                    struct rtllib_network *net)
1641 {
1642         u8 tmp_ssid[IW_ESSID_MAX_SIZE + 1];
1643         int tmp_ssid_len = 0;
1644
1645         short apset, ssidset, ssidbroad, apmatch, ssidmatch;
1646
1647         /* we are interested in new new only if we are not associated
1648          * and we are not associating / authenticating
1649          */
1650         if (ieee->state != RTLLIB_NOLINK)
1651                 return;
1652
1653         if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability &
1654             WLAN_CAPABILITY_ESS))
1655                 return;
1656
1657         if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability &
1658              WLAN_CAPABILITY_IBSS))
1659                 return;
1660
1661         if ((ieee->iw_mode == IW_MODE_ADHOC) &&
1662             (net->channel > ieee->ibss_maxjoin_chal))
1663                 return;
1664         if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
1665                 /* if the user specified the AP MAC, we need also the essid
1666                  * This could be obtained by beacons or, if the network does not
1667                  * broadcast it, it can be put manually.
1668                  */
1669                 apset = ieee->wap_set;
1670                 ssidset = ieee->ssid_set;
1671                 ssidbroad =  !(net->ssid_len == 0 || net->ssid[0] == '\0');
1672                 apmatch = (memcmp(ieee->current_network.bssid, net->bssid,
1673                                   ETH_ALEN) == 0);
1674                 if (!ssidbroad) {
1675                         ssidmatch = (ieee->current_network.ssid_len ==
1676                                     net->hidden_ssid_len) &&
1677                                     (!strncmp(ieee->current_network.ssid,
1678                                     net->hidden_ssid, net->hidden_ssid_len));
1679                         if (net->hidden_ssid_len > 0) {
1680                                 strncpy(net->ssid, net->hidden_ssid,
1681                                         net->hidden_ssid_len);
1682                                 net->ssid_len = net->hidden_ssid_len;
1683                                 ssidbroad = 1;
1684                         }
1685                 } else
1686                         ssidmatch =
1687                            (ieee->current_network.ssid_len == net->ssid_len) &&
1688                            (!strncmp(ieee->current_network.ssid, net->ssid,
1689                            net->ssid_len));
1690
1691                 /* if the user set the AP check if match.
1692                  * if the network does not broadcast essid we check the
1693                  *       user supplied ANY essid
1694                  * if the network does broadcast and the user does not set
1695                  *       essid it is OK
1696                  * if the network does broadcast and the user did set essid
1697                  * check if essid match
1698                  * if the ap is not set, check that the user set the bssid
1699                  * and the network does broadcast and that those two bssid match
1700                  */
1701                 if ((apset && apmatch &&
1702                    ((ssidset && ssidbroad && ssidmatch) ||
1703                    (ssidbroad && !ssidset) || (!ssidbroad && ssidset))) ||
1704                    (!apset && ssidset && ssidbroad && ssidmatch) ||
1705                    (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
1706                         /* if the essid is hidden replace it with the
1707                         * essid provided by the user.
1708                         */
1709                         if (!ssidbroad) {
1710                                 strncpy(tmp_ssid, ieee->current_network.ssid,
1711                                         IW_ESSID_MAX_SIZE);
1712                                 tmp_ssid_len = ieee->current_network.ssid_len;
1713                         }
1714                         memcpy(&ieee->current_network, net,
1715                                sizeof(struct rtllib_network));
1716                         if (!ssidbroad) {
1717                                 strncpy(ieee->current_network.ssid, tmp_ssid,
1718                                         IW_ESSID_MAX_SIZE);
1719                                 ieee->current_network.ssid_len = tmp_ssid_len;
1720                         }
1721                         printk(KERN_INFO"Linking with %s,channel:%d, qos:%d, "
1722                                "myHT:%d, networkHT:%d, mode:%x cur_net.flags"
1723                                ":0x%x\n", ieee->current_network.ssid,
1724                                ieee->current_network.channel,
1725                                ieee->current_network.qos_data.supported,
1726                                ieee->pHTInfo->bEnableHT,
1727                                ieee->current_network.bssht.bdSupportHT,
1728                                ieee->current_network.mode,
1729                                ieee->current_network.flags);
1730
1731                         if ((rtllib_act_scanning(ieee, false)) &&
1732                            !(ieee->softmac_features & IEEE_SOFTMAC_SCAN))
1733                                 rtllib_stop_scan_syncro(ieee);
1734
1735                         ieee->hwscan_ch_bk = ieee->current_network.channel;
1736                         HTResetIOTSetting(ieee->pHTInfo);
1737                         ieee->wmm_acm = 0;
1738                         if (ieee->iw_mode == IW_MODE_INFRA) {
1739                                 /* Join the network for the first time */
1740                                 ieee->AsocRetryCount = 0;
1741                                 if ((ieee->current_network.qos_data.supported == 1) &&
1742                                    ieee->current_network.bssht.bdSupportHT)
1743                                         HTResetSelfAndSavePeerSetting(ieee,
1744                                                  &(ieee->current_network));
1745                                 else
1746                                         ieee->pHTInfo->bCurrentHTSupport =
1747                                                                  false;
1748
1749                                 ieee->state = RTLLIB_ASSOCIATING;
1750                                 if (ieee->LedControlHandler != NULL)
1751                                         ieee->LedControlHandler(ieee->dev,
1752                                                          LED_CTL_START_TO_LINK);
1753                                 queue_delayed_work_rsl(ieee->wq,
1754                                            &ieee->associate_procedure_wq, 0);
1755                         } else {
1756                                 if (rtllib_is_54g(&ieee->current_network) &&
1757                                         (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
1758                                         ieee->rate = 108;
1759                                         ieee->SetWirelessMode(ieee->dev, IEEE_G);
1760                                         printk(KERN_INFO"Using G rates\n");
1761                                 } else {
1762                                         ieee->rate = 22;
1763                                         ieee->SetWirelessMode(ieee->dev, IEEE_B);
1764                                         printk(KERN_INFO"Using B rates\n");
1765                                 }
1766                                 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1767                                 ieee->state = RTLLIB_LINKED;
1768                         }
1769                 }
1770         }
1771 }
1772
1773 void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
1774 {
1775         unsigned long flags;
1776         struct rtllib_network *target;
1777
1778         spin_lock_irqsave(&ieee->lock, flags);
1779
1780         list_for_each_entry(target, &ieee->network_list, list) {
1781
1782                 /* if the state become different that NOLINK means
1783                  * we had found what we are searching for
1784                  */
1785
1786                 if (ieee->state != RTLLIB_NOLINK)
1787                         break;
1788
1789                 if (ieee->scan_age == 0 || time_after(target->last_scanned +
1790                     ieee->scan_age, jiffies))
1791                         rtllib_softmac_new_net(ieee, target);
1792         }
1793         spin_unlock_irqrestore(&ieee->lock, flags);
1794 }
1795
1796 static inline u16 auth_parse(struct sk_buff *skb, u8 **challenge, int *chlen)
1797 {
1798         struct rtllib_authentication *a;
1799         u8 *t;
1800
1801         if (skb->len <  (sizeof(struct rtllib_authentication) -
1802             sizeof(struct rtllib_info_element))) {
1803                 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
1804                 return 0xcafe;
1805         }
1806         *challenge = NULL;
1807         a = (struct rtllib_authentication *) skb->data;
1808         if (skb->len > (sizeof(struct rtllib_authentication) + 3)) {
1809                 t = skb->data + sizeof(struct rtllib_authentication);
1810
1811                 if (*(t++) == MFIE_TYPE_CHALLENGE) {
1812                         *chlen = *(t++);
1813                         *challenge = kmemdup(t, *chlen, GFP_ATOMIC);
1814                         if (!*challenge)
1815                                 return -ENOMEM;
1816                 }
1817         }
1818         return cpu_to_le16(a->status);
1819 }
1820
1821 static int auth_rq_parse(struct sk_buff *skb, u8 *dest)
1822 {
1823         struct rtllib_authentication *a;
1824
1825         if (skb->len <  (sizeof(struct rtllib_authentication) -
1826             sizeof(struct rtllib_info_element))) {
1827                 RTLLIB_DEBUG_MGMT("invalid len in auth request: %d\n",
1828                                   skb->len);
1829                 return -1;
1830         }
1831         a = (struct rtllib_authentication *) skb->data;
1832
1833         memcpy(dest, a->header.addr2, ETH_ALEN);
1834
1835         if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1836                 return  WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1837
1838         return WLAN_STATUS_SUCCESS;
1839 }
1840
1841 static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1842                             u8 *src)
1843 {
1844         u8 *tag;
1845         u8 *skbend;
1846         u8 *ssid = NULL;
1847         u8 ssidlen = 0;
1848         struct rtllib_hdr_3addr   *header =
1849                 (struct rtllib_hdr_3addr   *) skb->data;
1850         bool bssid_match;
1851
1852         if (skb->len < sizeof(struct rtllib_hdr_3addr))
1853                 return -1; /* corrupted */
1854
1855         bssid_match =
1856           (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0) &&
1857           (!is_broadcast_ether_addr(header->addr3));
1858         if (bssid_match)
1859                 return -1;
1860
1861         memcpy(src, header->addr2, ETH_ALEN);
1862
1863         skbend = (u8 *)skb->data + skb->len;
1864
1865         tag = skb->data + sizeof(struct rtllib_hdr_3addr);
1866
1867         while (tag + 1 < skbend) {
1868                 if (*tag == 0) {
1869                         ssid = tag + 2;
1870                         ssidlen = *(tag + 1);
1871                         break;
1872                 }
1873                 tag++; /* point to the len field */
1874                 tag = tag + *(tag); /* point to the last data byte of the tag */
1875                 tag++; /* point to the next tag */
1876         }
1877
1878         if (ssidlen == 0)
1879                 return 1;
1880
1881         if (!ssid)
1882                 return 1; /* ssid not found in tagged param */
1883
1884         return !strncmp(ssid, ieee->current_network.ssid, ssidlen);
1885 }
1886
1887 static int assoc_rq_parse(struct sk_buff *skb, u8 *dest)
1888 {
1889         struct rtllib_assoc_request_frame *a;
1890
1891         if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
1892                 sizeof(struct rtllib_info_element))) {
1893
1894                 RTLLIB_DEBUG_MGMT("invalid len in auth request:%d\n", skb->len);
1895                 return -1;
1896         }
1897
1898         a = (struct rtllib_assoc_request_frame *) skb->data;
1899
1900         memcpy(dest, a->header.addr2, ETH_ALEN);
1901
1902         return 0;
1903 }
1904
1905 static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1906                               int *aid)
1907 {
1908         struct rtllib_assoc_response_frame *response_head;
1909         u16 status_code;
1910
1911         if (skb->len <  sizeof(struct rtllib_assoc_response_frame)) {
1912                 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb->len);
1913                 return 0xcafe;
1914         }
1915
1916         response_head = (struct rtllib_assoc_response_frame *) skb->data;
1917         *aid = le16_to_cpu(response_head->aid) & 0x3fff;
1918
1919         status_code = le16_to_cpu(response_head->status);
1920         if ((status_code == WLAN_STATUS_ASSOC_DENIED_RATES ||
1921            status_code == WLAN_STATUS_CAPS_UNSUPPORTED) &&
1922            ((ieee->mode == IEEE_G) &&
1923            (ieee->current_network.mode == IEEE_N_24G) &&
1924            (ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
1925                 ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
1926         } else {
1927                 ieee->AsocRetryCount = 0;
1928         }
1929
1930         return le16_to_cpu(response_head->status);
1931 }
1932
1933 void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
1934 {
1935         u8 dest[ETH_ALEN];
1936
1937         ieee->softmac_stats.rx_probe_rq++;
1938         if (probe_rq_parse(ieee, skb, dest) > 0) {
1939                 ieee->softmac_stats.tx_probe_rs++;
1940                 rtllib_resp_to_probe(ieee, dest);
1941         }
1942 }
1943
1944 static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee,
1945                                      struct sk_buff *skb)
1946 {
1947         u8 dest[ETH_ALEN];
1948         int status;
1949
1950         ieee->softmac_stats.rx_auth_rq++;
1951
1952         status = auth_rq_parse(skb, dest);
1953         if (status != -1)
1954                 rtllib_resp_to_auth(ieee, status, dest);
1955 }
1956
1957 static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee,
1958                                       struct sk_buff *skb)
1959 {
1960
1961         u8 dest[ETH_ALEN];
1962
1963         ieee->softmac_stats.rx_ass_rq++;
1964         if (assoc_rq_parse(skb, dest) != -1)
1965                 rtllib_resp_to_assoc_rq(ieee, dest);
1966
1967         printk(KERN_INFO"New client associated: %pM\n", dest);
1968 }
1969
1970 void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
1971 {
1972
1973         struct sk_buff *buf = rtllib_null_func(ieee, pwr);
1974
1975         if (buf)
1976                 softmac_ps_mgmt_xmit(buf, ieee);
1977 }
1978 EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
1979
1980 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
1981 {
1982         struct sk_buff *buf = rtllib_pspoll_func(ieee);
1983
1984         if (buf)
1985                 softmac_ps_mgmt_xmit(buf, ieee);
1986 }
1987
1988 static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
1989 {
1990         int timeout = ieee->ps_timeout;
1991         u8 dtim;
1992         struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1993                                         (&(ieee->PowerSaveControl));
1994
1995         if (ieee->LPSDelayCnt) {
1996                 ieee->LPSDelayCnt--;
1997                 return 0;
1998         }
1999
2000         dtim = ieee->current_network.dtim_data;
2001         if (!(dtim & RTLLIB_DTIM_VALID))
2002                 return 0;
2003         timeout = ieee->current_network.beacon_interval;
2004         ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
2005         /* there's no need to nofity AP that I find you buffered
2006          * with broadcast packet */
2007         if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
2008                 return 2;
2009
2010         if (!time_after(jiffies, ieee->dev->trans_start + MSECS(timeout)))
2011                 return 0;
2012         if (!time_after(jiffies, ieee->last_rx_ps_time + MSECS(timeout)))
2013                 return 0;
2014         if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
2015             (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
2016                 return 0;
2017
2018         if (time) {
2019                 if (ieee->bAwakePktSent) {
2020                         pPSC->LPSAwakeIntvl = 1;
2021                 } else {
2022                         u8              MaxPeriod = 1;
2023
2024                         if (pPSC->LPSAwakeIntvl == 0)
2025                                 pPSC->LPSAwakeIntvl = 1;
2026                         if (pPSC->RegMaxLPSAwakeIntvl == 0)
2027                                 MaxPeriod = 1;
2028                         else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
2029                                 MaxPeriod = ieee->current_network.dtim_period;
2030                         else
2031                                 MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
2032                         pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >=
2033                                                MaxPeriod) ? MaxPeriod :
2034                                                (pPSC->LPSAwakeIntvl + 1);
2035                 }
2036                 {
2037                         u8 LPSAwakeIntvl_tmp = 0;
2038                         u8 period = ieee->current_network.dtim_period;
2039                         u8 count = ieee->current_network.tim.tim_count;
2040
2041                         if (count == 0) {
2042                                 if (pPSC->LPSAwakeIntvl > period)
2043                                         LPSAwakeIntvl_tmp = period +
2044                                                  (pPSC->LPSAwakeIntvl -
2045                                                  period) -
2046                                                  ((pPSC->LPSAwakeIntvl-period) %
2047                                                  period);
2048                                 else
2049                                         LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2050
2051                         } else {
2052                                 if (pPSC->LPSAwakeIntvl >
2053                                     ieee->current_network.tim.tim_count)
2054                                         LPSAwakeIntvl_tmp = count +
2055                                         (pPSC->LPSAwakeIntvl - count) -
2056                                         ((pPSC->LPSAwakeIntvl-count)%period);
2057                                 else
2058                                         LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2059                         }
2060
2061                 *time = ieee->current_network.last_dtim_sta_time
2062                         + MSECS(ieee->current_network.beacon_interval *
2063                         LPSAwakeIntvl_tmp);
2064         }
2065         }
2066
2067         return 1;
2068
2069
2070 }
2071
2072 static inline void rtllib_sta_ps(struct rtllib_device *ieee)
2073 {
2074         u64 time;
2075         short sleep;
2076         unsigned long flags, flags2;
2077
2078         spin_lock_irqsave(&ieee->lock, flags);
2079
2080         if ((ieee->ps == RTLLIB_PS_DISABLED ||
2081              ieee->iw_mode != IW_MODE_INFRA ||
2082              ieee->state != RTLLIB_LINKED)) {
2083                 RT_TRACE(COMP_DBG, "=====>%s(): no need to ps,wake up!! "
2084                          "ieee->ps is %d, ieee->iw_mode is %d, ieee->state"
2085                          " is %d\n", __func__, ieee->ps, ieee->iw_mode,
2086                           ieee->state);
2087                 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2088                 rtllib_sta_wakeup(ieee, 1);
2089
2090                 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2091         }
2092         sleep = rtllib_sta_ps_sleep(ieee, &time);
2093         /* 2 wake, 1 sleep, 0 do nothing */
2094         if (sleep == 0)
2095                 goto out;
2096         if (sleep == 1) {
2097                 if (ieee->sta_sleep == LPS_IS_SLEEP) {
2098                         ieee->enter_sleep_state(ieee->dev, time);
2099                 } else if (ieee->sta_sleep == LPS_IS_WAKE) {
2100                         spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2101
2102                         if (ieee->ps_is_queue_empty(ieee->dev)) {
2103                                 ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
2104                                 ieee->ack_tx_to_ieee = 1;
2105                                 rtllib_sta_ps_send_null_frame(ieee, 1);
2106                                 ieee->ps_time = time;
2107                         }
2108                         spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2109
2110                 }
2111
2112                 ieee->bAwakePktSent = false;
2113
2114         } else if (sleep == 2) {
2115                 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2116
2117                 rtllib_sta_wakeup(ieee, 1);
2118
2119                 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2120         }
2121
2122 out:
2123         spin_unlock_irqrestore(&ieee->lock, flags);
2124
2125 }
2126
2127 void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
2128 {
2129         if (ieee->sta_sleep == LPS_IS_WAKE) {
2130                 if (nl) {
2131                         if (ieee->pHTInfo->IOTAction &
2132                             HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
2133                                 ieee->ack_tx_to_ieee = 1;
2134                                 rtllib_sta_ps_send_null_frame(ieee, 0);
2135                         } else {
2136                                 ieee->ack_tx_to_ieee = 1;
2137                                 rtllib_sta_ps_send_pspoll_frame(ieee);
2138                         }
2139                 }
2140                 return;
2141
2142         }
2143
2144         if (ieee->sta_sleep == LPS_IS_SLEEP)
2145                 ieee->sta_wake_up(ieee->dev);
2146         if (nl) {
2147                 if (ieee->pHTInfo->IOTAction &
2148                     HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
2149                         ieee->ack_tx_to_ieee = 1;
2150                         rtllib_sta_ps_send_null_frame(ieee, 0);
2151                 } else {
2152                         ieee->ack_tx_to_ieee = 1;
2153                         ieee->polling = true;
2154                         rtllib_sta_ps_send_pspoll_frame(ieee);
2155                 }
2156
2157         } else {
2158                 ieee->sta_sleep = LPS_IS_WAKE;
2159                 ieee->polling = false;
2160         }
2161 }
2162
2163 void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
2164 {
2165         unsigned long flags, flags2;
2166
2167         spin_lock_irqsave(&ieee->lock, flags);
2168
2169         if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND) {
2170                 /* Null frame with PS bit set */
2171                 if (success) {
2172                         ieee->sta_sleep = LPS_IS_SLEEP;
2173                         ieee->enter_sleep_state(ieee->dev, ieee->ps_time);
2174                 }
2175                 /* if the card report not success we can't be sure the AP
2176                  * has not RXed so we can't assume the AP believe us awake
2177                  */
2178         } else {/* 21112005 - tx again null without PS bit if lost */
2179
2180                 if ((ieee->sta_sleep == LPS_IS_WAKE) && !success) {
2181                         spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2182                         if (ieee->pHTInfo->IOTAction &
2183                             HT_IOT_ACT_NULL_DATA_POWER_SAVING)
2184                                 rtllib_sta_ps_send_null_frame(ieee, 0);
2185                         else
2186                                 rtllib_sta_ps_send_pspoll_frame(ieee);
2187                         spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2188                 }
2189         }
2190         spin_unlock_irqrestore(&ieee->lock, flags);
2191 }
2192 EXPORT_SYMBOL(rtllib_ps_tx_ack);
2193
2194 static void rtllib_process_action(struct rtllib_device *ieee, struct sk_buff *skb)
2195 {
2196         struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2197         u8 *act = rtllib_get_payload((struct rtllib_hdr *)header);
2198         u8 category = 0;
2199
2200         if (act == NULL) {
2201                 RTLLIB_DEBUG(RTLLIB_DL_ERR, "error to get payload of "
2202                              "action frame\n");
2203                 return;
2204         }
2205
2206         category = *act;
2207         act++;
2208         switch (category) {
2209         case ACT_CAT_BA:
2210                 switch (*act) {
2211                 case ACT_ADDBAREQ:
2212                         rtllib_rx_ADDBAReq(ieee, skb);
2213                         break;
2214                 case ACT_ADDBARSP:
2215                         rtllib_rx_ADDBARsp(ieee, skb);
2216                         break;
2217                 case ACT_DELBA:
2218                         rtllib_rx_DELBA(ieee, skb);
2219                         break;
2220                 }
2221                 break;
2222         default:
2223                 break;
2224         }
2225         return;
2226 }
2227
2228 inline int rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
2229                                 struct rtllib_rx_stats *rx_stats)
2230 {
2231         u16 errcode;
2232         int aid;
2233         u8 *ies;
2234         struct rtllib_assoc_response_frame *assoc_resp;
2235         struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2236
2237         RTLLIB_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
2238                           WLAN_FC_GET_STYPE(header->frame_ctl));
2239
2240         if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2241              ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
2242              (ieee->iw_mode == IW_MODE_INFRA)) {
2243                 errcode = assoc_parse(ieee, skb, &aid);
2244                 if (0 == errcode) {
2245                         struct rtllib_network *network =
2246                                  kzalloc(sizeof(struct rtllib_network),
2247                                  GFP_ATOMIC);
2248
2249                         if (!network)
2250                                 return 1;
2251                         ieee->state = RTLLIB_LINKED;
2252                         ieee->assoc_id = aid;
2253                         ieee->softmac_stats.rx_ass_ok++;
2254                         /* station support qos */
2255                         /* Let the register setting default with Legacy station */
2256                         assoc_resp = (struct rtllib_assoc_response_frame *)skb->data;
2257                         if (ieee->current_network.qos_data.supported == 1) {
2258                                 if (rtllib_parse_info_param(ieee, assoc_resp->info_element,
2259                                                         rx_stats->len - sizeof(*assoc_resp),
2260                                                         network, rx_stats)) {
2261                                         kfree(network);
2262                                         return 1;
2263                                 }
2264                                 memcpy(ieee->pHTInfo->PeerHTCapBuf,
2265                                        network->bssht.bdHTCapBuf,
2266                                        network->bssht.bdHTCapLen);
2267                                 memcpy(ieee->pHTInfo->PeerHTInfoBuf,
2268                                        network->bssht.bdHTInfoBuf,
2269                                        network->bssht.bdHTInfoLen);
2270                                 if (ieee->handle_assoc_response != NULL)
2271                                         ieee->handle_assoc_response(ieee->dev,
2272                                                  (struct rtllib_assoc_response_frame *)header,
2273                                                  network);
2274                         }
2275                         kfree(network);
2276
2277                         kfree(ieee->assocresp_ies);
2278                         ieee->assocresp_ies = NULL;
2279                         ies = &(assoc_resp->info_element[0].id);
2280                         ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
2281                         ieee->assocresp_ies = kmalloc(ieee->assocresp_ies_len,
2282                                                       GFP_ATOMIC);
2283                         if (ieee->assocresp_ies)
2284                                 memcpy(ieee->assocresp_ies, ies,
2285                                        ieee->assocresp_ies_len);
2286                         else {
2287                                 printk(KERN_INFO "%s()Warning: can't alloc "
2288                                        "memory for assocresp_ies\n", __func__);
2289                                 ieee->assocresp_ies_len = 0;
2290                         }
2291                         rtllib_associate_complete(ieee);
2292                 } else {
2293                         /* aid could not been allocated */
2294                         ieee->softmac_stats.rx_ass_err++;
2295                         printk(KERN_INFO "Association response status code 0x%x\n",
2296                                 errcode);
2297                         RTLLIB_DEBUG_MGMT(
2298                                 "Association response status code 0x%x\n",
2299                                 errcode);
2300                         if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT)
2301                                 queue_delayed_work_rsl(ieee->wq,
2302                                          &ieee->associate_procedure_wq, 0);
2303                         else
2304                                 rtllib_associate_abort(ieee);
2305                 }
2306         }
2307         return 0;
2308 }
2309
2310 inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
2311                           struct rtllib_rx_stats *rx_stats)
2312 {
2313         u16 errcode;
2314         u8 *challenge;
2315         int chlen = 0;
2316         bool bSupportNmode = true, bHalfSupportNmode = false;
2317
2318         if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
2319                 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
2320                     (ieee->iw_mode == IW_MODE_INFRA)) {
2321                         RTLLIB_DEBUG_MGMT("Received authentication response");
2322
2323                         errcode = auth_parse(skb, &challenge, &chlen);
2324                         if (0 == errcode) {
2325                                 if (ieee->open_wep || !challenge) {
2326                                         ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
2327                                         ieee->softmac_stats.rx_auth_rs_ok++;
2328                                         if (!(ieee->pHTInfo->IOTAction &
2329                                             HT_IOT_ACT_PURE_N_MODE)) {
2330                                                 if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
2331                                                         if (IsHTHalfNmodeAPs(ieee)) {
2332                                                                 bSupportNmode = true;
2333                                                                 bHalfSupportNmode = true;
2334                                                         } else {
2335                                                                 bSupportNmode = false;
2336                                                                 bHalfSupportNmode = false;
2337                                                         }
2338                                                 }
2339                                         }
2340                                         /* Dummy wirless mode setting to avoid
2341                                          * encryption issue */
2342                                         if (bSupportNmode) {
2343                                                 ieee->SetWirelessMode(ieee->dev,
2344                                                    ieee->current_network.mode);
2345                                         } else {
2346                                                 /*TODO*/
2347                                                 ieee->SetWirelessMode(ieee->dev,
2348                                                                       IEEE_G);
2349                                         }
2350
2351                                         if (ieee->current_network.mode ==
2352                                             IEEE_N_24G && bHalfSupportNmode) {
2353                                                 printk(KERN_INFO "======>enter "
2354                                                        "half N mode\n");
2355                                                 ieee->bHalfWirelessN24GMode =
2356                                                                          true;
2357                                         } else
2358                                                 ieee->bHalfWirelessN24GMode =
2359                                                                          false;
2360
2361                                         rtllib_associate_step2(ieee);
2362                                 } else {
2363                                         rtllib_auth_challenge(ieee, challenge,
2364                                                               chlen);
2365                                 }
2366                         } else {
2367                                 ieee->softmac_stats.rx_auth_rs_err++;
2368                                 RTLLIB_DEBUG_MGMT("Authentication respose"
2369                                                   " status code 0x%x", errcode);
2370
2371                                 printk(KERN_INFO "Authentication respose "
2372                                        "status code 0x%x", errcode);
2373                                 rtllib_associate_abort(ieee);
2374                         }
2375
2376                 } else if (ieee->iw_mode == IW_MODE_MASTER) {
2377                         rtllib_rx_auth_rq(ieee, skb);
2378                 }
2379         }
2380         return 0;
2381 }
2382
2383 inline int rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
2384 {
2385         struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2386
2387         if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
2388                 return 0;
2389
2390         /* FIXME for now repeat all the association procedure
2391         * both for disassociation and deauthentication
2392         */
2393         if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2394             ieee->state == RTLLIB_LINKED &&
2395             (ieee->iw_mode == IW_MODE_INFRA)) {
2396                 printk(KERN_INFO "==========>received disassoc/deauth(%x) "
2397                        "frame, reason code:%x\n",
2398                        WLAN_FC_GET_STYPE(header->frame_ctl),
2399                        ((struct rtllib_disassoc *)skb->data)->reason);
2400                 ieee->state = RTLLIB_ASSOCIATING;
2401                 ieee->softmac_stats.reassoc++;
2402                 ieee->is_roaming = true;
2403                 ieee->LinkDetectInfo.bBusyTraffic = false;
2404                 rtllib_disassociate(ieee);
2405                 RemovePeerTS(ieee, header->addr2);
2406                 if (ieee->LedControlHandler != NULL)
2407                         ieee->LedControlHandler(ieee->dev,
2408                                                 LED_CTL_START_TO_LINK);
2409
2410                 if (!(ieee->rtllib_ap_sec_type(ieee) &
2411                     (SEC_ALG_CCMP|SEC_ALG_TKIP)))
2412                         queue_delayed_work_rsl(ieee->wq,
2413                                        &ieee->associate_procedure_wq, 5);
2414         }
2415         return 0;
2416 }
2417
2418 inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
2419                                    struct sk_buff *skb,
2420                                    struct rtllib_rx_stats *rx_stats, u16 type,
2421                                    u16 stype)
2422 {
2423         struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
2424
2425         if (!ieee->proto_started)
2426                 return 0;
2427
2428         switch (WLAN_FC_GET_STYPE(header->frame_ctl)) {
2429         case RTLLIB_STYPE_ASSOC_RESP:
2430         case RTLLIB_STYPE_REASSOC_RESP:
2431                 if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
2432                         return 1;
2433                 break;
2434         case RTLLIB_STYPE_ASSOC_REQ:
2435         case RTLLIB_STYPE_REASSOC_REQ:
2436                 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2437                      ieee->iw_mode == IW_MODE_MASTER)
2438                         rtllib_rx_assoc_rq(ieee, skb);
2439                 break;
2440         case RTLLIB_STYPE_AUTH:
2441                 rtllib_rx_auth(ieee, skb, rx_stats);
2442                 break;
2443         case RTLLIB_STYPE_DISASSOC:
2444         case RTLLIB_STYPE_DEAUTH:
2445                 rtllib_rx_deauth(ieee, skb);
2446                 break;
2447         case RTLLIB_STYPE_MANAGE_ACT:
2448                 rtllib_process_action(ieee, skb);
2449                 break;
2450         default:
2451                 return -1;
2452                 break;
2453         }
2454         return 0;
2455 }
2456
2457 /* following are for a simpler TX queue management.
2458  * Instead of using netif_[stop/wake]_queue the driver
2459  * will use these two functions (plus a reset one), that
2460  * will internally use the kernel netif_* and takes
2461  * care of the ieee802.11 fragmentation.
2462  * So the driver receives a fragment per time and might
2463  * call the stop function when it wants to not
2464  * have enough room to TX an entire packet.
2465  * This might be useful if each fragment needs it's own
2466  * descriptor, thus just keep a total free memory > than
2467  * the max fragmentation threshold is not enough.. If the
2468  * ieee802.11 stack passed a TXB struct then you need
2469  * to keep N free descriptors where
2470  * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
2471  * In this way you need just one and the 802.11 stack
2472  * will take care of buffering fragments and pass them to
2473  * to the driver later, when it wakes the queue.
2474  */
2475 void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
2476 {
2477
2478         unsigned int queue_index = txb->queue_index;
2479         unsigned long flags;
2480         int  i;
2481         struct cb_desc *tcb_desc = NULL;
2482         unsigned long queue_len = 0;
2483
2484         spin_lock_irqsave(&ieee->lock, flags);
2485
2486         /* called with 2nd parm 0, no tx mgmt lock required */
2487         rtllib_sta_wakeup(ieee, 0);
2488
2489         /* update the tx status */
2490         tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb +
2491                    MAX_DEV_ADDR_SIZE);
2492         if (tcb_desc->bMulticast)
2493                 ieee->stats.multicast++;
2494
2495         /* if xmit available, just xmit it immediately, else just insert it to
2496          * the wait queue */
2497         for (i = 0; i < txb->nr_frags; i++) {
2498                 queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
2499                 if ((queue_len  != 0) ||\
2500                     (!ieee->check_nic_enough_desc(ieee->dev, queue_index)) ||
2501                     (ieee->queue_stop)) {
2502                         /* insert the skb packet to the wait queue */
2503                         /* as for the completion function, it does not need
2504                          * to check it any more.
2505                          * */
2506                         if (queue_len < 200)
2507                                 skb_queue_tail(&ieee->skb_waitQ[queue_index],
2508                                                txb->fragments[i]);
2509                         else
2510                                 kfree_skb(txb->fragments[i]);
2511                 } else {
2512                         ieee->softmac_data_hard_start_xmit(
2513                                         txb->fragments[i],
2514                                         ieee->dev, ieee->rate);
2515                 }
2516         }
2517
2518         rtllib_txb_free(txb);
2519
2520         spin_unlock_irqrestore(&ieee->lock, flags);
2521
2522 }
2523
2524 /* called with ieee->lock acquired */
2525 static void rtllib_resume_tx(struct rtllib_device *ieee)
2526 {
2527         int i;
2528
2529         for (i = ieee->tx_pending.frag; i < ieee->tx_pending.txb->nr_frags;
2530              i++) {
2531
2532                 if (ieee->queue_stop) {
2533                         ieee->tx_pending.frag = i;
2534                         return;
2535                 } else {
2536
2537                         ieee->softmac_data_hard_start_xmit(
2538                                 ieee->tx_pending.txb->fragments[i],
2539                                 ieee->dev, ieee->rate);
2540                         ieee->stats.tx_packets++;
2541                 }
2542         }
2543
2544         rtllib_txb_free(ieee->tx_pending.txb);
2545         ieee->tx_pending.txb = NULL;
2546 }
2547
2548
2549 void rtllib_reset_queue(struct rtllib_device *ieee)
2550 {
2551         unsigned long flags;
2552
2553         spin_lock_irqsave(&ieee->lock, flags);
2554         init_mgmt_queue(ieee);
2555         if (ieee->tx_pending.txb) {
2556                 rtllib_txb_free(ieee->tx_pending.txb);
2557                 ieee->tx_pending.txb = NULL;
2558         }
2559         ieee->queue_stop = 0;
2560         spin_unlock_irqrestore(&ieee->lock, flags);
2561
2562 }
2563 EXPORT_SYMBOL(rtllib_reset_queue);
2564
2565 void rtllib_wake_queue(struct rtllib_device *ieee)
2566 {
2567
2568         unsigned long flags;
2569         struct sk_buff *skb;
2570         struct rtllib_hdr_3addr  *header;
2571
2572         spin_lock_irqsave(&ieee->lock, flags);
2573         if (!ieee->queue_stop)
2574                 goto exit;
2575
2576         ieee->queue_stop = 0;
2577
2578         if (ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) {
2579                 while (!ieee->queue_stop && (skb = dequeue_mgmt(ieee))) {
2580
2581                         header = (struct rtllib_hdr_3addr  *) skb->data;
2582
2583                         header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2584
2585                         if (ieee->seq_ctrl[0] == 0xFFF)
2586                                 ieee->seq_ctrl[0] = 0;
2587                         else
2588                                 ieee->seq_ctrl[0]++;
2589
2590                         ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
2591                                                            ieee->basic_rate);
2592                 }
2593         }
2594         if (!ieee->queue_stop && ieee->tx_pending.txb)
2595                 rtllib_resume_tx(ieee);
2596
2597         if (!ieee->queue_stop && netif_queue_stopped(ieee->dev)) {
2598                 ieee->softmac_stats.swtxawake++;
2599                 netif_wake_queue(ieee->dev);
2600         }
2601
2602 exit:
2603         spin_unlock_irqrestore(&ieee->lock, flags);
2604 }
2605
2606
2607 void rtllib_stop_queue(struct rtllib_device *ieee)
2608 {
2609
2610         if (!netif_queue_stopped(ieee->dev)) {
2611                 netif_stop_queue(ieee->dev);
2612                 ieee->softmac_stats.swtxstop++;
2613         }
2614         ieee->queue_stop = 1;
2615
2616 }
2617
2618 void rtllib_stop_all_queues(struct rtllib_device *ieee)
2619 {
2620         unsigned int i;
2621
2622         for (i = 0; i < ieee->dev->num_tx_queues; i++)
2623                 netdev_get_tx_queue(ieee->dev, i)->trans_start = jiffies;
2624
2625         netif_tx_stop_all_queues(ieee->dev);
2626 }
2627
2628 void rtllib_wake_all_queues(struct rtllib_device *ieee)
2629 {
2630         netif_tx_wake_all_queues(ieee->dev);
2631 }
2632
2633 inline void rtllib_randomize_cell(struct rtllib_device *ieee)
2634 {
2635
2636         random_ether_addr(ieee->current_network.bssid);
2637 }
2638
2639 /* called in user context only */
2640 void rtllib_start_master_bss(struct rtllib_device *ieee)
2641 {
2642         ieee->assoc_id = 1;
2643
2644         if (ieee->current_network.ssid_len == 0) {
2645                 strncpy(ieee->current_network.ssid,
2646                         RTLLIB_DEFAULT_TX_ESSID,
2647                         IW_ESSID_MAX_SIZE);
2648
2649                 ieee->current_network.ssid_len =
2650                                  strlen(RTLLIB_DEFAULT_TX_ESSID);
2651                 ieee->ssid_set = 1;
2652         }
2653
2654         memcpy(ieee->current_network.bssid, ieee->dev->dev_addr, ETH_ALEN);
2655
2656         ieee->set_chan(ieee->dev, ieee->current_network.channel);
2657         ieee->state = RTLLIB_LINKED;
2658         ieee->link_change(ieee->dev);
2659         notify_wx_assoc_event(ieee);
2660
2661         if (ieee->data_hard_resume)
2662                 ieee->data_hard_resume(ieee->dev);
2663
2664         netif_carrier_on(ieee->dev);
2665 }
2666
2667 static void rtllib_start_monitor_mode(struct rtllib_device *ieee)
2668 {
2669         /* reset hardware status */
2670         if (ieee->raw_tx) {
2671                 if (ieee->data_hard_resume)
2672                         ieee->data_hard_resume(ieee->dev);
2673
2674                 netif_carrier_on(ieee->dev);
2675         }
2676 }
2677
2678 static void rtllib_start_ibss_wq(void *data)
2679 {
2680         struct rtllib_device *ieee = container_of_dwork_rsl(data,
2681                                      struct rtllib_device, start_ibss_wq);
2682         /* iwconfig mode ad-hoc will schedule this and return
2683          * on the other hand this will block further iwconfig SET
2684          * operations because of the wx_sem hold.
2685          * Anyway some most set operations set a flag to speed-up
2686          * (abort) this wq (when syncro scanning) before sleeping
2687          * on the semaphore
2688          */
2689         if (!ieee->proto_started) {
2690                 printk(KERN_INFO "==========oh driver down return\n");
2691                 return;
2692         }
2693         down(&ieee->wx_sem);
2694
2695         if (ieee->current_network.ssid_len == 0) {
2696                 strcpy(ieee->current_network.ssid, RTLLIB_DEFAULT_TX_ESSID);
2697                 ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
2698                 ieee->ssid_set = 1;
2699         }
2700
2701         ieee->state = RTLLIB_NOLINK;
2702         ieee->mode = IEEE_G;
2703         /* check if we have this cell in our network list */
2704         rtllib_softmac_check_all_nets(ieee);
2705
2706
2707         /* if not then the state is not linked. Maybe the user switched to
2708          * ad-hoc mode just after being in monitor mode, or just after
2709          * being very few time in managed mode (so the card have had no
2710          * time to scan all the chans..) or we have just run up the iface
2711          * after setting ad-hoc mode. So we have to give another try..
2712          * Here, in ibss mode, should be safe to do this without extra care
2713          * (in bss mode we had to make sure no-one tried to associate when
2714          * we had just checked the ieee->state and we was going to start the
2715          * scan) because in ibss mode the rtllib_new_net function, when
2716          * finds a good net, just set the ieee->state to RTLLIB_LINKED,
2717          * so, at worst, we waste a bit of time to initiate an unneeded syncro
2718          * scan, that will stop at the first round because it sees the state
2719          * associated.
2720          */
2721         if (ieee->state == RTLLIB_NOLINK)
2722                 rtllib_start_scan_syncro(ieee, 0);
2723
2724         /* the network definitively is not here.. create a new cell */
2725         if (ieee->state == RTLLIB_NOLINK) {
2726                 printk(KERN_INFO "creating new IBSS cell\n");
2727                 ieee->current_network.channel = ieee->IbssStartChnl;
2728                 if (!ieee->wap_set)
2729                         rtllib_randomize_cell(ieee);
2730
2731                 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
2732
2733                         ieee->current_network.rates_len = 4;
2734
2735                         ieee->current_network.rates[0] =
2736                                  RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
2737                         ieee->current_network.rates[1] =
2738                                  RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
2739                         ieee->current_network.rates[2] =
2740                                  RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
2741                         ieee->current_network.rates[3] =
2742                                  RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
2743
2744                 } else
2745                         ieee->current_network.rates_len = 0;
2746
2747                 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
2748                         ieee->current_network.rates_ex_len = 8;
2749
2750                         ieee->current_network.rates_ex[0] =
2751                                                  RTLLIB_OFDM_RATE_6MB;
2752                         ieee->current_network.rates_ex[1] =
2753                                                  RTLLIB_OFDM_RATE_9MB;
2754                         ieee->current_network.rates_ex[2] =
2755                                                  RTLLIB_OFDM_RATE_12MB;
2756                         ieee->current_network.rates_ex[3] =
2757                                                  RTLLIB_OFDM_RATE_18MB;
2758                         ieee->current_network.rates_ex[4] =
2759                                                  RTLLIB_OFDM_RATE_24MB;
2760                         ieee->current_network.rates_ex[5] =
2761                                                  RTLLIB_OFDM_RATE_36MB;
2762                         ieee->current_network.rates_ex[6] =
2763                                                  RTLLIB_OFDM_RATE_48MB;
2764                         ieee->current_network.rates_ex[7] =
2765                                                  RTLLIB_OFDM_RATE_54MB;
2766
2767                         ieee->rate = 108;
2768                 } else {
2769                         ieee->current_network.rates_ex_len = 0;
2770                         ieee->rate = 22;
2771                 }
2772
2773                 ieee->current_network.qos_data.supported = 0;
2774                 ieee->SetWirelessMode(ieee->dev, IEEE_G);
2775                 ieee->current_network.mode = ieee->mode;
2776                 ieee->current_network.atim_window = 0;
2777                 ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
2778         }
2779
2780         printk(KERN_INFO "%s(): ieee->mode = %d\n", __func__, ieee->mode);
2781         if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
2782                 HTUseDefaultSetting(ieee);
2783         else
2784                 ieee->pHTInfo->bCurrentHTSupport = false;
2785
2786         ieee->SetHwRegHandler(ieee->dev, HW_VAR_MEDIA_STATUS,
2787                               (u8 *)(&ieee->state));
2788
2789         ieee->state = RTLLIB_LINKED;
2790         ieee->link_change(ieee->dev);
2791
2792         HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
2793         if (ieee->LedControlHandler != NULL)
2794                 ieee->LedControlHandler(ieee->dev, LED_CTL_LINK);
2795
2796         rtllib_start_send_beacons(ieee);
2797
2798         notify_wx_assoc_event(ieee);
2799
2800         if (ieee->data_hard_resume)
2801                 ieee->data_hard_resume(ieee->dev);
2802
2803         netif_carrier_on(ieee->dev);
2804
2805         up(&ieee->wx_sem);
2806 }
2807
2808 inline void rtllib_start_ibss(struct rtllib_device *ieee)
2809 {
2810         queue_delayed_work_rsl(ieee->wq, &ieee->start_ibss_wq, MSECS(150));
2811 }
2812
2813 /* this is called only in user context, with wx_sem held */
2814 void rtllib_start_bss(struct rtllib_device *ieee)
2815 {
2816         unsigned long flags;
2817
2818         if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) {
2819                 if (!ieee->bGlobalDomain)
2820                         return;
2821         }
2822         /* check if we have already found the net we
2823          * are interested in (if any).
2824          * if not (we are disassociated and we are not
2825          * in associating / authenticating phase) start the background scanning.
2826          */
2827         rtllib_softmac_check_all_nets(ieee);
2828
2829         /* ensure no-one start an associating process (thus setting
2830          * the ieee->state to rtllib_ASSOCIATING) while we
2831          * have just checked it and we are going to enable scan.
2832          * The rtllib_new_net function is always called with
2833          * lock held (from both rtllib_softmac_check_all_nets and
2834          * the rx path), so we cannot be in the middle of such function
2835          */
2836         spin_lock_irqsave(&ieee->lock, flags);
2837
2838         if (ieee->state == RTLLIB_NOLINK)
2839                 rtllib_start_scan(ieee);
2840         spin_unlock_irqrestore(&ieee->lock, flags);
2841 }
2842
2843 static void rtllib_link_change_wq(void *data)
2844 {
2845         struct rtllib_device *ieee = container_of_dwork_rsl(data,
2846                                      struct rtllib_device, link_change_wq);
2847         ieee->link_change(ieee->dev);
2848 }
2849 /* called only in userspace context */
2850 void rtllib_disassociate(struct rtllib_device *ieee)
2851 {
2852         netif_carrier_off(ieee->dev);
2853         if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
2854                         rtllib_reset_queue(ieee);
2855
2856         if (ieee->data_hard_stop)
2857                         ieee->data_hard_stop(ieee->dev);
2858         if (IS_DOT11D_ENABLE(ieee))
2859                 Dot11d_Reset(ieee);
2860         ieee->state = RTLLIB_NOLINK;
2861         ieee->is_set_key = false;
2862         ieee->wap_set = 0;
2863
2864         queue_delayed_work_rsl(ieee->wq, &ieee->link_change_wq, 0);
2865
2866         notify_wx_assoc_event(ieee);
2867 }
2868
2869 static void rtllib_associate_retry_wq(void *data)
2870 {
2871         struct rtllib_device *ieee = container_of_dwork_rsl(data,
2872                                      struct rtllib_device, associate_retry_wq);
2873         unsigned long flags;
2874
2875         down(&ieee->wx_sem);
2876         if (!ieee->proto_started)
2877                 goto exit;
2878
2879         if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
2880                 goto exit;
2881
2882         /* until we do not set the state to RTLLIB_NOLINK
2883         * there are no possibility to have someone else trying
2884         * to start an association procedure (we get here with
2885         * ieee->state = RTLLIB_ASSOCIATING).
2886         * When we set the state to RTLLIB_NOLINK it is possible
2887         * that the RX path run an attempt to associate, but
2888         * both rtllib_softmac_check_all_nets and the
2889         * RX path works with ieee->lock held so there are no
2890         * problems. If we are still disassociated then start a scan.
2891         * the lock here is necessary to ensure no one try to start
2892         * an association procedure when we have just checked the
2893         * state and we are going to start the scan.
2894         */
2895         ieee->beinretry = true;
2896         ieee->state = RTLLIB_NOLINK;
2897
2898         rtllib_softmac_check_all_nets(ieee);
2899
2900         spin_lock_irqsave(&ieee->lock, flags);
2901
2902         if (ieee->state == RTLLIB_NOLINK)
2903                 rtllib_start_scan(ieee);
2904         spin_unlock_irqrestore(&ieee->lock, flags);
2905
2906         ieee->beinretry = false;
2907 exit:
2908         up(&ieee->wx_sem);
2909 }
2910
2911 struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
2912 {
2913         u8 broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2914
2915         struct sk_buff *skb;
2916         struct rtllib_probe_response *b;
2917
2918         skb = rtllib_probe_resp(ieee, broadcast_addr);
2919
2920         if (!skb)
2921                 return NULL;
2922
2923         b = (struct rtllib_probe_response *) skb->data;
2924         b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);
2925
2926         return skb;
2927
2928 }
2929
2930 struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
2931 {
2932         struct sk_buff *skb;
2933         struct rtllib_probe_response *b;
2934
2935         skb = rtllib_get_beacon_(ieee);
2936         if (!skb)
2937                 return NULL;
2938
2939         b = (struct rtllib_probe_response *) skb->data;
2940         b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2941
2942         if (ieee->seq_ctrl[0] == 0xFFF)
2943                 ieee->seq_ctrl[0] = 0;
2944         else
2945                 ieee->seq_ctrl[0]++;
2946
2947         return skb;
2948 }
2949 EXPORT_SYMBOL(rtllib_get_beacon);
2950
2951 void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
2952                                   u8 shutdown)
2953 {
2954         rtllib_stop_scan_syncro(ieee);
2955         down(&ieee->wx_sem);
2956         rtllib_stop_protocol(ieee, shutdown);
2957         up(&ieee->wx_sem);
2958 }
2959 EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
2960
2961
2962 void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
2963 {
2964         if (!ieee->proto_started)
2965                 return;
2966
2967         if (shutdown) {
2968                 ieee->proto_started = 0;
2969                 ieee->proto_stoppping = 1;
2970                 if (ieee->rtllib_ips_leave != NULL)
2971                         ieee->rtllib_ips_leave(ieee->dev);
2972         }
2973
2974         rtllib_stop_send_beacons(ieee);
2975         del_timer_sync(&ieee->associate_timer);
2976         cancel_delayed_work(&ieee->associate_retry_wq);
2977         cancel_delayed_work(&ieee->start_ibss_wq);
2978         cancel_delayed_work(&ieee->link_change_wq);
2979         rtllib_stop_scan(ieee);
2980
2981         if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
2982                 ieee->state = RTLLIB_NOLINK;
2983
2984         if (ieee->state == RTLLIB_LINKED) {
2985                 if (ieee->iw_mode == IW_MODE_INFRA)
2986                         SendDisassociation(ieee, 1, deauth_lv_ss);
2987                 rtllib_disassociate(ieee);
2988         }
2989
2990         if (shutdown) {
2991                 RemoveAllTS(ieee);
2992                 ieee->proto_stoppping = 0;
2993         }
2994         kfree(ieee->assocreq_ies);
2995         ieee->assocreq_ies = NULL;
2996         ieee->assocreq_ies_len = 0;
2997         kfree(ieee->assocresp_ies);
2998         ieee->assocresp_ies = NULL;
2999         ieee->assocresp_ies_len = 0;
3000 }
3001
3002 void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
3003 {
3004         down(&ieee->wx_sem);
3005         rtllib_start_protocol(ieee);
3006         up(&ieee->wx_sem);
3007 }
3008 EXPORT_SYMBOL(rtllib_softmac_start_protocol);
3009
3010 void rtllib_start_protocol(struct rtllib_device *ieee)
3011 {
3012         short ch = 0;
3013         int i = 0;
3014
3015         rtllib_update_active_chan_map(ieee);
3016
3017         if (ieee->proto_started)
3018                 return;
3019
3020         ieee->proto_started = 1;
3021
3022         if (ieee->current_network.channel == 0) {
3023                 do {
3024                         ch++;
3025                         if (ch > MAX_CHANNEL_NUMBER)
3026                                 return; /* no channel found */
3027                 } while (!ieee->active_channel_map[ch]);
3028                 ieee->current_network.channel = ch;
3029         }
3030
3031         if (ieee->current_network.beacon_interval == 0)
3032                 ieee->current_network.beacon_interval = 100;
3033
3034         for (i = 0; i < 17; i++) {
3035                 ieee->last_rxseq_num[i] = -1;
3036                 ieee->last_rxfrag_num[i] = -1;
3037                 ieee->last_packet_time[i] = 0;
3038         }
3039
3040         if (ieee->UpdateBeaconInterruptHandler)
3041                 ieee->UpdateBeaconInterruptHandler(ieee->dev, false);
3042
3043         ieee->wmm_acm = 0;
3044         /* if the user set the MAC of the ad-hoc cell and then
3045          * switch to managed mode, shall we  make sure that association
3046          * attempts does not fail just because the user provide the essid
3047          * and the nic is still checking for the AP MAC ??
3048          */
3049         if (ieee->iw_mode == IW_MODE_INFRA) {
3050                 rtllib_start_bss(ieee);
3051         } else if (ieee->iw_mode == IW_MODE_ADHOC) {
3052                 if (ieee->UpdateBeaconInterruptHandler)
3053                         ieee->UpdateBeaconInterruptHandler(ieee->dev, true);
3054
3055                 rtllib_start_ibss(ieee);
3056
3057         } else if (ieee->iw_mode == IW_MODE_MASTER) {
3058                 rtllib_start_master_bss(ieee);
3059         } else if (ieee->iw_mode == IW_MODE_MONITOR) {
3060                 rtllib_start_monitor_mode(ieee);
3061         }
3062 }
3063
3064 void rtllib_softmac_init(struct rtllib_device *ieee)
3065 {
3066         int i;
3067
3068         memset(&ieee->current_network, 0, sizeof(struct rtllib_network));
3069
3070         ieee->state = RTLLIB_NOLINK;
3071         for (i = 0; i < 5; i++)
3072                 ieee->seq_ctrl[i] = 0;
3073         ieee->pDot11dInfo = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
3074         if (!ieee->pDot11dInfo)
3075                 RTLLIB_DEBUG(RTLLIB_DL_ERR, "can't alloc memory for DOT11D\n");
3076         ieee->LinkDetectInfo.SlotIndex = 0;
3077         ieee->LinkDetectInfo.SlotNum = 2;
3078         ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
3079         ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
3080         ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
3081         ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
3082         ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
3083         ieee->bIsAggregateFrame = false;
3084         ieee->assoc_id = 0;
3085         ieee->queue_stop = 0;
3086         ieee->scanning_continue = 0;
3087         ieee->softmac_features = 0;
3088         ieee->wap_set = 0;
3089         ieee->ssid_set = 0;
3090         ieee->proto_started = 0;
3091         ieee->proto_stoppping = 0;
3092         ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
3093         ieee->rate = 22;
3094         ieee->ps = RTLLIB_PS_DISABLED;
3095         ieee->sta_sleep = LPS_IS_WAKE;
3096
3097         ieee->Regdot11HTOperationalRateSet[0] = 0xff;
3098         ieee->Regdot11HTOperationalRateSet[1] = 0xff;
3099         ieee->Regdot11HTOperationalRateSet[4] = 0x01;
3100
3101         ieee->Regdot11TxHTOperationalRateSet[0] = 0xff;
3102         ieee->Regdot11TxHTOperationalRateSet[1] = 0xff;
3103         ieee->Regdot11TxHTOperationalRateSet[4] = 0x01;
3104
3105         ieee->FirstIe_InScan = false;
3106         ieee->actscanning = false;
3107         ieee->beinretry = false;
3108         ieee->is_set_key = false;
3109         init_mgmt_queue(ieee);
3110
3111         ieee->sta_edca_param[0] = 0x0000A403;
3112         ieee->sta_edca_param[1] = 0x0000A427;
3113         ieee->sta_edca_param[2] = 0x005E4342;
3114         ieee->sta_edca_param[3] = 0x002F3262;
3115         ieee->aggregation = true;
3116         ieee->enable_rx_imm_BA = true;
3117         ieee->tx_pending.txb = NULL;
3118
3119         _setup_timer(&ieee->associate_timer,
3120                     rtllib_associate_abort_cb,
3121                     (unsigned long) ieee);
3122
3123         _setup_timer(&ieee->beacon_timer,
3124                     rtllib_send_beacon_cb,
3125                     (unsigned long) ieee);
3126
3127
3128         ieee->wq = create_workqueue(DRV_NAME);
3129
3130         INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
3131                               (void *)rtllib_link_change_wq, ieee);
3132         INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,
3133                               (void *)rtllib_start_ibss_wq, ieee);
3134         INIT_WORK_RSL(&ieee->associate_complete_wq,
3135                       (void *)rtllib_associate_complete_wq, ieee);
3136         INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq,
3137                               (void *)rtllib_associate_procedure_wq, ieee);
3138         INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,
3139                               (void *)rtllib_softmac_scan_wq, ieee);
3140         INIT_DELAYED_WORK_RSL(&ieee->softmac_hint11d_wq,
3141                               (void *)rtllib_softmac_hint11d_wq, ieee);
3142         INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq,
3143                               (void *)rtllib_associate_retry_wq, ieee);
3144         INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
3145                       ieee);
3146
3147         sema_init(&ieee->wx_sem, 1);
3148         sema_init(&ieee->scan_sem, 1);
3149         sema_init(&ieee->ips_sem, 1);
3150
3151         spin_lock_init(&ieee->mgmt_tx_lock);
3152         spin_lock_init(&ieee->beacon_lock);
3153
3154         tasklet_init(&ieee->ps_task,
3155              (void(*)(unsigned long)) rtllib_sta_ps,
3156              (unsigned long)ieee);
3157
3158 }
3159
3160 void rtllib_softmac_free(struct rtllib_device *ieee)
3161 {
3162         down(&ieee->wx_sem);
3163         kfree(ieee->pDot11dInfo);
3164         ieee->pDot11dInfo = NULL;
3165         del_timer_sync(&ieee->associate_timer);
3166
3167         cancel_delayed_work(&ieee->associate_retry_wq);
3168         destroy_workqueue(ieee->wq);
3169         up(&ieee->wx_sem);
3170 }
3171
3172 /********************************************************
3173  * Start of WPA code.                                   *
3174  * this is stolen from the ipw2200 driver               *
3175  ********************************************************/
3176
3177
3178 static int rtllib_wpa_enable(struct rtllib_device *ieee, int value)
3179 {
3180         /* This is called when wpa_supplicant loads and closes the driver
3181          * interface. */
3182         printk(KERN_INFO "%s WPA\n", value ? "enabling" : "disabling");
3183         ieee->wpa_enabled = value;
3184         memset(ieee->ap_mac_addr, 0, 6);
3185         return 0;
3186 }
3187
3188
3189 static void rtllib_wpa_assoc_frame(struct rtllib_device *ieee, char *wpa_ie,
3190                                    int wpa_ie_len)
3191 {
3192         /* make sure WPA is enabled */
3193         rtllib_wpa_enable(ieee, 1);
3194
3195         rtllib_disassociate(ieee);
3196 }
3197
3198
3199 static int rtllib_wpa_mlme(struct rtllib_device *ieee, int command, int reason)
3200 {
3201
3202         int ret = 0;
3203
3204         switch (command) {
3205         case IEEE_MLME_STA_DEAUTH:
3206                 break;
3207
3208         case IEEE_MLME_STA_DISASSOC:
3209                 rtllib_disassociate(ieee);
3210                 break;
3211
3212         default:
3213                 printk(KERN_INFO "Unknown MLME request: %d\n", command);
3214                 ret = -EOPNOTSUPP;
3215         }
3216
3217         return ret;
3218 }
3219
3220
3221 static int rtllib_wpa_set_wpa_ie(struct rtllib_device *ieee,
3222                               struct ieee_param *param, int plen)
3223 {
3224         u8 *buf;
3225
3226         if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
3227             (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
3228                 return -EINVAL;
3229
3230         if (param->u.wpa_ie.len) {
3231                 buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
3232                               GFP_KERNEL);
3233                 if (buf == NULL)
3234                         return -ENOMEM;
3235
3236                 kfree(ieee->wpa_ie);
3237                 ieee->wpa_ie = buf;
3238                 ieee->wpa_ie_len = param->u.wpa_ie.len;
3239         } else {
3240                 kfree(ieee->wpa_ie);
3241                 ieee->wpa_ie = NULL;
3242                 ieee->wpa_ie_len = 0;
3243         }
3244
3245         rtllib_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
3246         return 0;
3247 }
3248
3249 #define AUTH_ALG_OPEN_SYSTEM                    0x1
3250 #define AUTH_ALG_SHARED_KEY                     0x2
3251 #define AUTH_ALG_LEAP                           0x4
3252 static int rtllib_wpa_set_auth_algs(struct rtllib_device *ieee, int value)
3253 {
3254
3255         struct rtllib_security sec = {
3256                 .flags = SEC_AUTH_MODE,
3257         };
3258
3259         if (value & AUTH_ALG_SHARED_KEY) {
3260                 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
3261                 ieee->open_wep = 0;
3262                 ieee->auth_mode = 1;
3263         } else if (value & AUTH_ALG_OPEN_SYSTEM) {
3264                 sec.auth_mode = WLAN_AUTH_OPEN;
3265                 ieee->open_wep = 1;
3266                 ieee->auth_mode = 0;
3267         } else if (value & AUTH_ALG_LEAP) {
3268                 sec.auth_mode = WLAN_AUTH_LEAP  >> 6;
3269                 ieee->open_wep = 1;
3270                 ieee->auth_mode = 2;
3271         }
3272
3273
3274         if (ieee->set_security)
3275                 ieee->set_security(ieee->dev, &sec);
3276
3277         return 0;
3278 }
3279
3280 static int rtllib_wpa_set_param(struct rtllib_device *ieee, u8 name, u32 value)
3281 {
3282         int ret = 0;
3283         unsigned long flags;
3284
3285         switch (name) {
3286         case IEEE_PARAM_WPA_ENABLED:
3287                 ret = rtllib_wpa_enable(ieee, value);
3288                 break;
3289
3290         case IEEE_PARAM_TKIP_COUNTERMEASURES:
3291                 ieee->tkip_countermeasures = value;
3292                 break;
3293
3294         case IEEE_PARAM_DROP_UNENCRYPTED:
3295         {
3296                 /* HACK:
3297                  *
3298                  * wpa_supplicant calls set_wpa_enabled when the driver
3299                  * is loaded and unloaded, regardless of if WPA is being
3300                  * used.  No other calls are made which can be used to
3301                  * determine if encryption will be used or not prior to
3302                  * association being expected.  If encryption is not being
3303                  * used, drop_unencrypted is set to false, else true -- we
3304                  * can use this to determine if the CAP_PRIVACY_ON bit should
3305                  * be set.
3306                  */
3307                 struct rtllib_security sec = {
3308                         .flags = SEC_ENABLED,
3309                         .enabled = value,
3310                 };
3311                 ieee->drop_unencrypted = value;
3312                 /* We only change SEC_LEVEL for open mode. Others
3313                  * are set by ipw_wpa_set_encryption.
3314                  */
3315                 if (!value) {
3316                         sec.flags |= SEC_LEVEL;
3317                         sec.level = SEC_LEVEL_0;
3318                 } else {
3319                         sec.flags |= SEC_LEVEL;
3320                         sec.level = SEC_LEVEL_1;
3321                 }
3322                 if (ieee->set_security)
3323                         ieee->set_security(ieee->dev, &sec);
3324                 break;
3325         }
3326
3327         case IEEE_PARAM_PRIVACY_INVOKED:
3328                 ieee->privacy_invoked = value;
3329                 break;
3330
3331         case IEEE_PARAM_AUTH_ALGS:
3332                 ret = rtllib_wpa_set_auth_algs(ieee, value);
3333                 break;
3334
3335         case IEEE_PARAM_IEEE_802_1X:
3336                 ieee->ieee802_1x = value;
3337                 break;
3338         case IEEE_PARAM_WPAX_SELECT:
3339                 spin_lock_irqsave(&ieee->wpax_suitlist_lock, flags);
3340                 spin_unlock_irqrestore(&ieee->wpax_suitlist_lock, flags);
3341                 break;
3342
3343         default:
3344                 printk(KERN_INFO "Unknown WPA param: %d\n", name);
3345                 ret = -EOPNOTSUPP;
3346         }
3347
3348         return ret;
3349 }
3350
3351 /* implementation borrowed from hostap driver */
3352 static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
3353                                   struct ieee_param *param, int param_len,
3354                                   u8 is_mesh)
3355 {
3356         int ret = 0;
3357         struct lib80211_crypto_ops *ops;
3358         struct lib80211_crypt_data **crypt;
3359
3360         struct rtllib_security sec = {
3361                 .flags = 0,
3362         };
3363
3364         param->u.crypt.err = 0;
3365         param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
3366
3367         if (param_len !=
3368             (int) ((char *) param->u.crypt.key - (char *) param) +
3369             param->u.crypt.key_len) {
3370                 printk(KERN_INFO "Len mismatch %d, %d\n", param_len,
3371                                param->u.crypt.key_len);
3372                 return -EINVAL;
3373         }
3374         if (is_broadcast_ether_addr(param->sta_addr)) {
3375                 if (param->u.crypt.idx >= NUM_WEP_KEYS)
3376                         return -EINVAL;
3377                 crypt = &ieee->crypt_info.crypt[param->u.crypt.idx];
3378         } else {
3379                 return -EINVAL;
3380         }
3381
3382         if (strcmp(param->u.crypt.alg, "none") == 0) {
3383                 if (crypt) {
3384                         sec.enabled = 0;
3385                         sec.level = SEC_LEVEL_0;
3386                         sec.flags |= SEC_ENABLED | SEC_LEVEL;
3387                         lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
3388                 }
3389                 goto done;
3390         }
3391         sec.enabled = 1;
3392         sec.flags |= SEC_ENABLED;
3393
3394         /* IPW HW cannot build TKIP MIC, host decryption still needed. */
3395         if (!(ieee->host_encrypt || ieee->host_decrypt) &&
3396             strcmp(param->u.crypt.alg, "R-TKIP"))
3397                 goto skip_host_crypt;
3398
3399         ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3400         if (ops == NULL && strcmp(param->u.crypt.alg, "R-WEP") == 0) {
3401                 request_module("rtllib_crypt_wep");
3402                 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3403         } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
3404                 request_module("rtllib_crypt_tkip");
3405                 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3406         } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
3407                 request_module("rtllib_crypt_ccmp");
3408                 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3409         }
3410         if (ops == NULL) {
3411                 printk(KERN_INFO "unknown crypto alg '%s'\n",
3412                        param->u.crypt.alg);
3413                 param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
3414                 ret = -EINVAL;
3415                 goto done;
3416         }
3417         if (*crypt == NULL || (*crypt)->ops != ops) {
3418                 struct lib80211_crypt_data *new_crypt;
3419
3420                 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
3421
3422                 new_crypt = kmalloc(sizeof(*new_crypt), GFP_KERNEL);
3423                 if (new_crypt == NULL) {
3424                         ret = -ENOMEM;
3425                         goto done;
3426                 }
3427                 memset(new_crypt, 0, sizeof(struct lib80211_crypt_data));
3428                 new_crypt->ops = ops;
3429                 if (new_crypt->ops)
3430                         new_crypt->priv =
3431                                 new_crypt->ops->init(param->u.crypt.idx);
3432
3433                 if (new_crypt->priv == NULL) {
3434                         kfree(new_crypt);
3435                         param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
3436                         ret = -EINVAL;
3437                         goto done;
3438                 }
3439
3440                 *crypt = new_crypt;
3441         }
3442
3443         if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
3444             (*crypt)->ops->set_key(param->u.crypt.key,
3445             param->u.crypt.key_len, param->u.crypt.seq,
3446             (*crypt)->priv) < 0) {
3447                 printk(KERN_INFO "key setting failed\n");
3448                 param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
3449                 ret = -EINVAL;
3450                 goto done;
3451         }
3452
3453  skip_host_crypt:
3454         if (param->u.crypt.set_tx) {
3455                 ieee->crypt_info.tx_keyidx = param->u.crypt.idx;
3456                 sec.active_key = param->u.crypt.idx;
3457                 sec.flags |= SEC_ACTIVE_KEY;
3458         } else
3459                 sec.flags &= ~SEC_ACTIVE_KEY;
3460
3461         if (param->u.crypt.alg != NULL) {
3462                 memcpy(sec.keys[param->u.crypt.idx],
3463                        param->u.crypt.key,
3464                        param->u.crypt.key_len);
3465                 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
3466                 sec.flags |= (1 << param->u.crypt.idx);
3467
3468                 if (strcmp(param->u.crypt.alg, "R-WEP") == 0) {
3469                         sec.flags |= SEC_LEVEL;
3470                         sec.level = SEC_LEVEL_1;
3471                 } else if (strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
3472                         sec.flags |= SEC_LEVEL;
3473                         sec.level = SEC_LEVEL_2;
3474                 } else if (strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
3475                         sec.flags |= SEC_LEVEL;
3476                         sec.level = SEC_LEVEL_3;
3477                 }
3478         }
3479  done:
3480         if (ieee->set_security)
3481                 ieee->set_security(ieee->dev, &sec);
3482
3483         /* Do not reset port if card is in Managed mode since resetting will
3484          * generate new IEEE 802.11 authentication which may end up in looping
3485          * with IEEE 802.1X.  If your hardware requires a reset after WEP
3486          * configuration (for example... Prism2), implement the reset_port in
3487          * the callbacks structures used to initialize the 802.11 stack. */
3488         if (ieee->reset_on_keychange &&
3489             ieee->iw_mode != IW_MODE_INFRA &&
3490             ieee->reset_port &&
3491             ieee->reset_port(ieee->dev)) {
3492                 printk(KERN_INFO "reset_port failed\n");
3493                 param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
3494                 return -EINVAL;
3495         }
3496
3497         return ret;
3498 }
3499
3500 inline struct sk_buff *rtllib_disauth_skb(struct rtllib_network *beacon,
3501                 struct rtllib_device *ieee, u16 asRsn)
3502 {
3503         struct sk_buff *skb;
3504         struct rtllib_disauth *disauth;
3505         int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;
3506
3507         skb = dev_alloc_skb(len);
3508         if (!skb)
3509                 return NULL;
3510
3511         skb_reserve(skb, ieee->tx_headroom);
3512
3513         disauth = (struct rtllib_disauth *) skb_put(skb,
3514                   sizeof(struct rtllib_disauth));
3515         disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
3516         disauth->header.duration_id = 0;
3517
3518         memcpy(disauth->header.addr1, beacon->bssid, ETH_ALEN);
3519         memcpy(disauth->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
3520         memcpy(disauth->header.addr3, beacon->bssid, ETH_ALEN);
3521
3522         disauth->reason = cpu_to_le16(asRsn);
3523         return skb;
3524 }
3525
3526 inline struct sk_buff *rtllib_disassociate_skb(struct rtllib_network *beacon,
3527                 struct rtllib_device *ieee, u16 asRsn)
3528 {
3529         struct sk_buff *skb;
3530         struct rtllib_disassoc *disass;
3531         int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
3532
3533         skb = dev_alloc_skb(len);
3534
3535         if (!skb)
3536                 return NULL;
3537
3538         skb_reserve(skb, ieee->tx_headroom);
3539
3540         disass = (struct rtllib_disassoc *) skb_put(skb,
3541                                          sizeof(struct rtllib_disassoc));
3542         disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
3543         disass->header.duration_id = 0;
3544
3545         memcpy(disass->header.addr1, beacon->bssid, ETH_ALEN);
3546         memcpy(disass->header.addr2, ieee->dev->dev_addr, ETH_ALEN);
3547         memcpy(disass->header.addr3, beacon->bssid, ETH_ALEN);
3548
3549         disass->reason = cpu_to_le16(asRsn);
3550         return skb;
3551 }
3552
3553 void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
3554 {
3555         struct rtllib_network *beacon = &ieee->current_network;
3556         struct sk_buff *skb;
3557
3558         if (deauth)
3559                 skb = rtllib_disauth_skb(beacon, ieee, asRsn);
3560         else
3561                 skb = rtllib_disassociate_skb(beacon, ieee, asRsn);
3562
3563         if (skb)
3564                 softmac_mgmt_xmit(skb, ieee);
3565 }
3566
3567 u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
3568 {
3569         static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
3570         static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
3571         int wpa_ie_len = ieee->wpa_ie_len;
3572         struct lib80211_crypt_data *crypt;
3573         int encrypt;
3574
3575         crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
3576         encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
3577                   || (ieee->host_encrypt && crypt && crypt->ops &&
3578                   (0 == strcmp(crypt->ops->name, "R-WEP")));
3579
3580         /* simply judge  */
3581         if (encrypt && (wpa_ie_len == 0)) {
3582                 return SEC_ALG_WEP;
3583         } else if ((wpa_ie_len != 0)) {
3584                 if (((ieee->wpa_ie[0] == 0xdd) &&
3585                     (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) ||
3586                     ((ieee->wpa_ie[0] == 0x30) &&
3587                     (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
3588                         return SEC_ALG_CCMP;
3589                 else
3590                         return SEC_ALG_TKIP;
3591         } else {
3592                 return SEC_ALG_NONE;
3593         }
3594 }
3595
3596 int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p,
3597                                 u8 is_mesh)
3598 {
3599         struct ieee_param *param;
3600         int ret = 0;
3601
3602         down(&ieee->wx_sem);
3603
3604         if (p->length < sizeof(struct ieee_param) || !p->pointer) {
3605                 ret = -EINVAL;
3606                 goto out;
3607         }
3608
3609         param = memdup_user(p->pointer, p->length);
3610         if (IS_ERR(param)) {
3611                 ret = PTR_ERR(param);
3612                 goto out;
3613         }
3614
3615         switch (param->cmd) {
3616         case IEEE_CMD_SET_WPA_PARAM:
3617                 ret = rtllib_wpa_set_param(ieee, param->u.wpa_param.name,
3618                                         param->u.wpa_param.value);
3619                 break;
3620
3621         case IEEE_CMD_SET_WPA_IE:
3622                 ret = rtllib_wpa_set_wpa_ie(ieee, param, p->length);
3623                 break;
3624
3625         case IEEE_CMD_SET_ENCRYPTION:
3626                 ret = rtllib_wpa_set_encryption(ieee, param, p->length, 0);
3627                 break;
3628
3629         case IEEE_CMD_MLME:
3630                 ret = rtllib_wpa_mlme(ieee, param->u.mlme.command,
3631                                    param->u.mlme.reason_code);
3632                 break;
3633
3634         default:
3635                 printk(KERN_INFO "Unknown WPA supplicant request: %d\n",
3636                        param->cmd);
3637                 ret = -EOPNOTSUPP;
3638                 break;
3639         }
3640
3641         if (ret == 0 && copy_to_user(p->pointer, param, p->length))
3642                 ret = -EFAULT;
3643
3644         kfree(param);
3645 out:
3646         up(&ieee->wx_sem);
3647
3648         return ret;
3649 }
3650 EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl);
3651
3652 static void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib)
3653 {
3654         u8      OpMode;
3655         u8      i;
3656         bool    bFilterOutNonAssociatedBSSID = false;
3657
3658         rtllib->state = RTLLIB_NOLINK;
3659
3660         for (i = 0; i < 6; i++)
3661                 rtllib->current_network.bssid[i] = 0x55;
3662
3663         rtllib->OpMode = RT_OP_MODE_NO_LINK;
3664         rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3665                                 rtllib->current_network.bssid);
3666         OpMode = RT_OP_MODE_NO_LINK;
3667         rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
3668         rtllib_stop_send_beacons(rtllib);
3669
3670         bFilterOutNonAssociatedBSSID = false;
3671         rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3672                                 (u8 *)(&bFilterOutNonAssociatedBSSID));
3673         notify_wx_assoc_event(rtllib);
3674
3675 }
3676
3677 static void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib, u8 *asSta,
3678                                     u8 asRsn)
3679 {
3680         u8 i;
3681         u8      OpMode;
3682
3683         RemovePeerTS(rtllib, asSta);
3684
3685         if (memcmp(rtllib->current_network.bssid, asSta, 6) == 0) {
3686                 rtllib->state = RTLLIB_NOLINK;
3687
3688                 for (i = 0; i < 6; i++)
3689                         rtllib->current_network.bssid[i] = 0x22;
3690                 OpMode = RT_OP_MODE_NO_LINK;
3691                 rtllib->OpMode = RT_OP_MODE_NO_LINK;
3692                 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS,
3693                                         (u8 *)(&OpMode));
3694                 rtllib_disassociate(rtllib);
3695
3696                 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3697                                         rtllib->current_network.bssid);
3698
3699         }
3700
3701 }
3702
3703 static void
3704 rtllib_MgntDisconnectAP(
3705         struct rtllib_device *rtllib,
3706         u8 asRsn
3707 )
3708 {
3709         bool bFilterOutNonAssociatedBSSID = false;
3710
3711         bFilterOutNonAssociatedBSSID = false;
3712         rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3713                                 (u8 *)(&bFilterOutNonAssociatedBSSID));
3714         rtllib_MlmeDisassociateRequest(rtllib, rtllib->current_network.bssid,
3715                                        asRsn);
3716
3717         rtllib->state = RTLLIB_NOLINK;
3718 }
3719
3720 bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn)
3721 {
3722         if (rtllib->ps != RTLLIB_PS_DISABLED)
3723                 rtllib->sta_wake_up(rtllib->dev);
3724
3725         if (rtllib->state == RTLLIB_LINKED) {
3726                 if (rtllib->iw_mode == IW_MODE_ADHOC)
3727                         rtllib_MgntDisconnectIBSS(rtllib);
3728                 if (rtllib->iw_mode == IW_MODE_INFRA)
3729                         rtllib_MgntDisconnectAP(rtllib, asRsn);
3730
3731         }
3732
3733         return true;
3734 }
3735 EXPORT_SYMBOL(rtllib_MgntDisconnect);
3736
3737 void notify_wx_assoc_event(struct rtllib_device *ieee)
3738 {
3739         union iwreq_data wrqu;
3740
3741         if (ieee->cannot_notify)
3742                 return;
3743
3744         wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3745         if (ieee->state == RTLLIB_LINKED)
3746                 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid,
3747                        ETH_ALEN);
3748         else {
3749
3750                 printk(KERN_INFO "%s(): Tell user space disconnected\n",
3751                        __func__);
3752                 memset(wrqu.ap_addr.sa_data, 0, ETH_ALEN);
3753         }
3754         wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3755 }
3756 EXPORT_SYMBOL(notify_wx_assoc_event);