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Merge remote-tracking branch 'staging/staging-next'
[deliverable/linux.git] / drivers / staging / rtl8192e / rtllib_softmac.c
CommitLineData
94a79942 1/* IEEE 802.11 SoftMAC layer
559a4c31 2 * Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com>
94a79942
LF		 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"
94a79942
LF		 18
19#include <linux/random.h>
20#include <linux/delay.h>
9d92ece8 21#include <linux/uaccess.h>
0c43e56c 22#include <linux/etherdevice.h>
acd442db 23#include <linux/ieee80211.h>
94a79942 24#include "dot11d.h"
94a79942 25
6957248f
MK		 26static void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl);
27
28
29static short rtllib_is_54g(struct rtllib_network *net)
94a79942 30{
9d92ece8 31 return (net->rates_ex_len > 0) || (net->rates_len > 4);
94a79942
LF		 32}
33
cd017123 34/* returns the total length needed for placing the RATE MFIE
94a79942
LF		 35 * tag and the EXTENDED RATE MFIE tag if needed.
36 * It encludes two bytes per tag for the tag itself and its len
37 */
ec0dc6be 38static unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
94a79942
LF		 39{
40 unsigned int rate_len = 0;
41
42 if (ieee->modulation & RTLLIB_CCK_MODULATION)
43 rate_len = RTLLIB_CCK_RATE_LEN + 2;
44
45 if (ieee->modulation & RTLLIB_OFDM_MODULATION)
46
47 rate_len += RTLLIB_OFDM_RATE_LEN + 2;
48
49 return rate_len;
50}
51
cd017123 52/* place the MFIE rate, tag to the memory (double) pointed.
94a79942
LF		 53 * Then it updates the pointer so that
54 * it points after the new MFIE tag added.
55 */
ec0dc6be 56static void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
94a79942
LF		 57{
58 u8 *tag = *tag_p;
59
9d92ece8 60 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
94a79942
LF		 61 *tag++ = MFIE_TYPE_RATES;
62 *tag++ = 4;
63 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
64 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
65 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
66 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
67 }
68
9d92ece8 69 /* We may add an option for custom rates that specific HW
14b40d92
MK		 70 * might support
71 */
94a79942
LF		 72 *tag_p = tag;
73}
74
ec0dc6be 75static void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
94a79942
LF		 76{
77 u8 *tag = *tag_p;
78
9d92ece8 79 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
94a79942
LF		 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;
94a79942 90 }
9d92ece8 91 /* We may add an option for custom rates that specific HW might
14b40d92
MK		 92 * support
93 */
94a79942
LF		 94 *tag_p = tag;
95}
96
ec0dc6be 97static void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p)
9d92ece8 98{
94a79942
LF		 99 u8 *tag = *tag_p;
100
101 *tag++ = MFIE_TYPE_GENERIC;
102 *tag++ = 7;
103 *tag++ = 0x00;
104 *tag++ = 0x50;
105 *tag++ = 0xf2;
106 *tag++ = 0x02;
107 *tag++ = 0x00;
108 *tag++ = 0x01;
94a79942 109 *tag++ = MAX_SP_Len;
94a79942
LF		 110 *tag_p = tag;
111}
112
6957248f 113static void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p)
9d92ece8 114{
94a79942
LF		 115 u8 *tag = *tag_p;
116
9d92ece8
LF		 117 *tag++ = MFIE_TYPE_GENERIC;
118 *tag++ = 7;
119 *tag++ = 0x00;
120 *tag++ = 0xe0;
121 *tag++ = 0x4c;
122 *tag++ = 0x01;
123 *tag++ = 0x02;
124 *tag++ = 0x11;
94a79942
LF		 125 *tag++ = 0x00;
126
127 *tag_p = tag;
d69d2054 128 netdev_alert(ieee->dev, "This is enable turbo mode IE process\n");
94a79942
LF		 129}
130
ec0dc6be 131static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
94a79942
LF		 132{
133 int nh;
3a6b70c3 134
9d92ece8 135 nh = (ieee->mgmt_queue_head + 1) % MGMT_QUEUE_NUM;
94a79942 136
14b40d92 137/* if the queue is full but we have newer frames then
94a79942
LF		 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
ec0dc6be 148static void init_mgmt_queue(struct rtllib_device *ieee)
94a79942
LF		 149{
150 ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
151}
152
153
154u8
155MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
156{
157 u16 i;
158 u8 QueryRate = 0;
159 u8 BasicRate;
160
161
9d92ece8 162 for (i = 0; i < ieee->current_network.rates_len; i++) {
94a79942 163 BasicRate = ieee->current_network.rates[i]&0x7F;
9d92ece8
LF		 164 if (!rtllib_is_cck_rate(BasicRate)) {
165 if (QueryRate == 0) {
94a79942 166 QueryRate = BasicRate;
9d92ece8 167 } else {
94a79942 168 if (BasicRate < QueryRate)
94a79942 169 QueryRate = BasicRate;
94a79942
LF		 170 }
171 }
172 }
173
9d92ece8 174 if (QueryRate == 0) {
94a79942 175 QueryRate = 12;
d69d2054 176 netdev_info(ieee->dev, "No BasicRate found!!\n");
94a79942
LF		 177 }
178 return QueryRate;
179}
180
d82f0029 181static u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
94a79942 182{
7796d93e 183 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
94a79942
LF		 184 u8 rate;
185
186 if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
187 rate = 0x0c;
188 else
189 rate = ieee->basic_rate & 0x7f;
190
9d92ece8
LF		 191 if (rate == 0) {
192 if (ieee->mode == IEEE_A ||
193 ieee->mode == IEEE_N_5G ||
194 (ieee->mode == IEEE_N_24G && !pHTInfo->bCurSuppCCK))
94a79942
LF		 195 rate = 0x0c;
196 else
197 rate = 0x02;
198 }
199
200 return rate;
201}
202
94a79942
LF		 203inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
204{
205 unsigned long flags;
206 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
9d92ece8 207 struct rtllib_hdr_3addr *header =
94a79942
LF		 208 (struct rtllib_hdr_3addr *) skb->data;
209
3b83db43 210 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
3a6b70c3 211
94a79942
LF		 212 spin_lock_irqsave(&ieee->lock, flags);
213
214 /* called with 2nd param 0, no mgmt lock required */
9d92ece8 215 rtllib_sta_wakeup(ieee, 0);
94a79942 216
f7df1918 217 if (le16_to_cpu(header->frame_ctl) == RTLLIB_STYPE_BEACON)
94a79942
LF		 218 tcb_desc->queue_index = BEACON_QUEUE;
219 else
220 tcb_desc->queue_index = MGNT_QUEUE;
221
222 if (ieee->disable_mgnt_queue)
223 tcb_desc->queue_index = HIGH_QUEUE;
224
225 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
226 tcb_desc->RATRIndex = 7;
227 tcb_desc->bTxDisableRateFallBack = 1;
228 tcb_desc->bTxUseDriverAssingedRate = 1;
229 if (single) {
9d92ece8
LF		 230 if (ieee->queue_stop) {
231 enqueue_mgmt(ieee, skb);
232 } else {
94a79942
LF		 233 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
234
235 if (ieee->seq_ctrl[0] == 0xFFF)
236 ieee->seq_ctrl[0] = 0;
237 else
238 ieee->seq_ctrl[0]++;
239
240 /* avoid watchdog triggers */
9d92ece8
LF		 241 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
242 ieee->basic_rate);
94a79942
LF		 243 }
244
245 spin_unlock_irqrestore(&ieee->lock, flags);
9d92ece8 246 } else {
94a79942
LF		 247 spin_unlock_irqrestore(&ieee->lock, flags);
248 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
249
250 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
251
252 if (ieee->seq_ctrl[0] == 0xFFF)
253 ieee->seq_ctrl[0] = 0;
254 else
255 ieee->seq_ctrl[0]++;
256
f2635894 257 /* check whether the managed packet queued greater than 5 */
35e33b04
MK		 258 if (!ieee->check_nic_enough_desc(ieee->dev,
259 tcb_desc->queue_index) ||
260 skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) ||
261 ieee->queue_stop) {
14b40d92
MK		 262 /* insert the skb packet to the management queue
263 *
264 * as for the completion function, it does not need
94a79942 265 * to check it any more.
14b40d92 266 */
d69d2054 267 netdev_info(ieee->dev,
0822339b
MK		 268 "%s():insert to waitqueue, queue_index:%d!\n",
269 __func__, tcb_desc->queue_index);
9d92ece8
LF		 270 skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index],
271 skb);
94a79942 272 } else {
9d92ece8 273 ieee->softmac_hard_start_xmit(skb, ieee->dev);
94a79942
LF		 274 }
275 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
276 }
277}
278
ec65ef8e
BX		 279static inline void
280softmac_ps_mgmt_xmit(struct sk_buff *skb,
281 struct rtllib_device *ieee)
94a79942
LF		 282{
283 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
284 struct rtllib_hdr_3addr *header =
285 (struct rtllib_hdr_3addr *) skb->data;
9d92ece8 286 u16 fc, type, stype;
3b83db43 287 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
94a79942 288
1830a6d8 289 fc = le16_to_cpu(header->frame_ctl);
94a79942
LF		 290 type = WLAN_FC_GET_TYPE(fc);
291 stype = WLAN_FC_GET_STYPE(fc);
292
293
294 if (stype != RTLLIB_STYPE_PSPOLL)
295 tcb_desc->queue_index = MGNT_QUEUE;
296 else
297 tcb_desc->queue_index = HIGH_QUEUE;
298
299 if (ieee->disable_mgnt_queue)
300 tcb_desc->queue_index = HIGH_QUEUE;
301
302
303 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
304 tcb_desc->RATRIndex = 7;
305 tcb_desc->bTxDisableRateFallBack = 1;
306 tcb_desc->bTxUseDriverAssingedRate = 1;
307 if (single) {
308 if (type != RTLLIB_FTYPE_CTL) {
309 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
310
311 if (ieee->seq_ctrl[0] == 0xFFF)
312 ieee->seq_ctrl[0] = 0;
313 else
314 ieee->seq_ctrl[0]++;
315
316 }
317 /* avoid watchdog triggers */
9d92ece8
LF		 318 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
319 ieee->basic_rate);
94a79942
LF		 320
321 } else {
322 if (type != RTLLIB_FTYPE_CTL) {
323 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
324
325 if (ieee->seq_ctrl[0] == 0xFFF)
326 ieee->seq_ctrl[0] = 0;
327 else
328 ieee->seq_ctrl[0]++;
329 }
9d92ece8 330 ieee->softmac_hard_start_xmit(skb, ieee->dev);
94a79942
LF		 331
332 }
333}
334
6d91857d 335static inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
94a79942 336{
9d92ece8 337 unsigned int len, rate_len;
94a79942
LF		 338 u8 *tag;
339 struct sk_buff *skb;
340 struct rtllib_probe_request *req;
341
342 len = ieee->current_network.ssid_len;
343
344 rate_len = rtllib_MFIE_rate_len(ieee);
345
94a79942
LF		 346 skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
347 2 + len + rate_len + ieee->tx_headroom);
94a79942
LF		 348
349 if (!skb)
350 return NULL;
351
94a79942
LF		 352 skb_reserve(skb, ieee->tx_headroom);
353
9d92ece8
LF		 354 req = (struct rtllib_probe_request *) skb_put(skb,
355 sizeof(struct rtllib_probe_request));
94a79942
LF		 356 req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
357 req->header.duration_id = 0;
358
686f0c23 359 eth_broadcast_addr(req->header.addr1);
b57ceb19 360 ether_addr_copy(req->header.addr2, ieee->dev->dev_addr);
686f0c23 361 eth_broadcast_addr(req->header.addr3);
94a79942 362
9d92ece8 363 tag = (u8 *) skb_put(skb, len + 2 + rate_len);
94a79942
LF		 364
365 *tag++ = MFIE_TYPE_SSID;
366 *tag++ = len;
367 memcpy(tag, ieee->current_network.ssid, len);
368 tag += len;
369
9d92ece8
LF		 370 rtllib_MFIE_Brate(ieee, &tag);
371 rtllib_MFIE_Grate(ieee, &tag);
94a79942
LF		 372
373 return skb;
374}
375
6957248f 376static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
94a79942 377
ec0dc6be 378static void rtllib_send_beacon(struct rtllib_device *ieee)
94a79942
LF		 379{
380 struct sk_buff *skb;
3a6b70c3 381
94a79942
LF		 382 if (!ieee->ieee_up)
383 return;
384 skb = rtllib_get_beacon_(ieee);
385
9d92ece8 386 if (skb) {
94a79942
LF		 387 softmac_mgmt_xmit(skb, ieee);
388 ieee->softmac_stats.tx_beacons++;
389 }
390
9d92ece8
LF		 391 if (ieee->beacon_txing && ieee->ieee_up)
392 mod_timer(&ieee->beacon_timer, jiffies +
8b9733c1 393 (msecs_to_jiffies(ieee->current_network.beacon_interval - 5)));
94a79942
LF		 394}
395
396
ec0dc6be 397static void rtllib_send_beacon_cb(unsigned long _ieee)
94a79942
LF		 398{
399 struct rtllib_device *ieee =
400 (struct rtllib_device *) _ieee;
401 unsigned long flags;
402
403 spin_lock_irqsave(&ieee->beacon_lock, flags);
404 rtllib_send_beacon(ieee);
405 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
406}
407
14b40d92 408/* Enables network monitor mode, all rx packets will be received. */
9d92ece8
LF		 409void rtllib_EnableNetMonitorMode(struct net_device *dev,
410 bool bInitState)
94a79942 411{
9d92ece8 412 struct rtllib_device *ieee = netdev_priv_rsl(dev);
94a79942 413
d69d2054 414 netdev_info(dev, "========>Enter Monitor Mode\n");
94a79942 415
9d92ece8 416 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
94a79942
LF		 417}
418
419
14b40d92
MK		 420/* Disables network monitor mode. Only packets destinated to
421 * us will be received.
94a79942 422 */
9d92ece8
LF		 423void rtllib_DisableNetMonitorMode(struct net_device *dev,
424 bool bInitState)
94a79942 425{
9d92ece8 426 struct rtllib_device *ieee = netdev_priv_rsl(dev);
94a79942 427
d69d2054 428 netdev_info(dev, "========>Exit Monitor Mode\n");
94a79942 429
9d92ece8 430 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
94a79942
LF		 431}
432
433
14b40d92 434/* Enables the specialized promiscuous mode required by Intel.
9d92ece8
LF		 435 * In this mode, Intel intends to hear traffics from/to other STAs in the
436 * same BSS. Therefore we don't have to disable checking BSSID and we only need
437 * to allow all dest. BUT: if we enable checking BSSID then we can't recv
438 * packets from other STA.
94a79942 439 */
9d92ece8
LF		 440void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
441 bool bInitState)
94a79942 442{
9d92ece8 443 bool bFilterOutNonAssociatedBSSID = false;
94a79942 444
9d92ece8 445 struct rtllib_device *ieee = netdev_priv_rsl(dev);
94a79942 446
d69d2054 447 netdev_info(dev, "========>Enter Intel Promiscuous Mode\n");
94a79942 448
9d92ece8
LF		 449 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
450 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
451 (u8 *)&bFilterOutNonAssociatedBSSID);
94a79942 452
9d92ece8 453 ieee->bNetPromiscuousMode = true;
94a79942 454}
3b28499c 455EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
94a79942
LF		 456
457
14b40d92
MK		 458/* Disables the specialized promiscuous mode required by Intel.
459 * See MgntEnableIntelPromiscuousMode for detail.
94a79942 460 */
9d92ece8
LF		 461void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
462 bool bInitState)
94a79942 463{
9d92ece8 464 bool bFilterOutNonAssociatedBSSID = true;
94a79942 465
9d92ece8 466 struct rtllib_device *ieee = netdev_priv_rsl(dev);
94a79942 467
d69d2054 468 netdev_info(dev, "========>Exit Intel Promiscuous Mode\n");
94a79942 469
9d92ece8
LF		 470 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
471 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
472 (u8 *)&bFilterOutNonAssociatedBSSID);
94a79942 473
9d92ece8 474 ieee->bNetPromiscuousMode = false;
94a79942 475}
3b28499c 476EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
94a79942 477
ec0dc6be 478static void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
94a79942
LF		 479{
480 struct sk_buff *skb;
3a6b70c3 481
94a79942 482 skb = rtllib_probe_req(ieee);
9d92ece8 483 if (skb) {
94a79942
LF		 484 softmac_mgmt_xmit(skb, ieee);
485 ieee->softmac_stats.tx_probe_rq++;
486 }
487}
488
489
6957248f 490static void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
94a79942
LF		 491{
492 if (ieee->active_scan && (ieee->softmac_features &
493 IEEE_SOFTMAC_PROBERQ)) {
494 rtllib_send_probe(ieee, 0);
495 rtllib_send_probe(ieee, 0);
496 }
497}
498
6957248f 499static void rtllib_update_active_chan_map(struct rtllib_device *ieee)
94a79942 500{
9d92ece8
LF		 501 memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map,
502 MAX_CHANNEL_NUMBER+1);
94a79942
LF		 503}
504
505/* this performs syncro scan blocking the caller until all channels
506 * in the allowed channel map has been checked.
507 */
6957248f 508static void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
94a79942 509{
9d92ece8 510 union iwreq_data wrqu;
94a79942
LF		 511 short ch = 0;
512
513 rtllib_update_active_chan_map(ieee);
514
515 ieee->be_scan_inprogress = true;
516
be10ceea 517 mutex_lock(&ieee->scan_mutex);
94a79942 518
9d92ece8 519 while (1) {
94a79942
LF		 520 do {
521 ch++;
522 if (ch > MAX_CHANNEL_NUMBER)
523 goto out; /* scan completed */
9d92ece8 524 } while (!ieee->active_channel_map[ch]);
94a79942 525
430fb250 526 /* this function can be called in two situations
94a79942
LF		 527 * 1- We have switched to ad-hoc mode and we are
528 * performing a complete syncro scan before conclude
529 * there are no interesting cell and to create a
530 * new one. In this case the link state is
531 * RTLLIB_NOLINK until we found an interesting cell.
532 * If so the ieee8021_new_net, called by the RX path
533 * will set the state to RTLLIB_LINKED, so we stop
534 * scanning
535 * 2- We are linked and the root uses run iwlist scan.
536 * So we switch to RTLLIB_LINKED_SCANNING to remember
537 * that we are still logically linked (not interested in
538 * new network events, despite for updating the net list,
539 * but we are temporarly 'unlinked' as the driver shall
540 * not filter RX frames and the channel is changing.
cd017123 541 * So the only situation in which are interested is to check
94a79942
LF		 542 * if the state become LINKED because of the #1 situation
543 */
544
545 if (ieee->state == RTLLIB_LINKED)
546 goto out;
9d92ece8 547 if (ieee->sync_scan_hurryup) {
d69d2054
MK		 548 netdev_info(ieee->dev,
549 "============>sync_scan_hurryup out\n");
94a79942
LF		 550 goto out;
551 }
552
553 ieee->set_chan(ieee->dev, ch);
554 if (ieee->active_channel_map[ch] == 1)
9d92ece8 555 rtllib_send_probe_requests(ieee, 0);
94a79942
LF		 556
557 /* this prevent excessive time wait when we
558 * need to wait for a syncro scan to end..
559 */
560 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
561 }
562out:
563 ieee->actscanning = false;
564 ieee->sync_scan_hurryup = 0;
565
9d92ece8 566 if (ieee->state >= RTLLIB_LINKED) {
94a79942
LF		 567 if (IS_DOT11D_ENABLE(ieee))
568 DOT11D_ScanComplete(ieee);
94a79942 569 }
be10ceea 570 mutex_unlock(&ieee->scan_mutex);
94a79942
LF		 571
572 ieee->be_scan_inprogress = false;
573
94a79942 574 memset(&wrqu, 0, sizeof(wrqu));
9d92ece8 575 wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
94a79942
LF		 576}
577
ec0dc6be 578static void rtllib_softmac_scan_wq(void *data)
94a79942 579{
9d92ece8
LF		 580 struct rtllib_device *ieee = container_of_dwork_rsl(data,
581 struct rtllib_device, softmac_scan_wq);
94a79942
LF		 582 u8 last_channel = ieee->current_network.channel;
583
584 rtllib_update_active_chan_map(ieee);
585
586 if (!ieee->ieee_up)
587 return;
4bb01423 588 if (rtllib_act_scanning(ieee, true))
94a79942
LF		 589 return;
590
be10ceea 591 mutex_lock(&ieee->scan_mutex);
94a79942 592
9d92ece8 593 if (ieee->eRFPowerState == eRfOff) {
d69d2054
MK		 594 netdev_info(ieee->dev,
595 "======>%s():rf state is eRfOff, return\n",
596 __func__);
94a79942
LF		 597 goto out1;
598 }
599
9d92ece8 600 do {
94a79942 601 ieee->current_network.channel =
9d92ece8
LF		 602 (ieee->current_network.channel + 1) %
603 MAX_CHANNEL_NUMBER;
604 if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER) {
94a79942
LF		 605 if (!ieee->active_channel_map[ieee->current_network.channel])
606 ieee->current_network.channel = 6;
607 goto out; /* no good chans */
608 }
9d92ece8 609 } while (!ieee->active_channel_map[ieee->current_network.channel]);
94a79942 610
9d92ece8 611 if (ieee->scanning_continue == 0)
94a79942
LF		 612 goto out;
613
614 ieee->set_chan(ieee->dev, ieee->current_network.channel);
615
616 if (ieee->active_channel_map[ieee->current_network.channel] == 1)
9d92ece8 617 rtllib_send_probe_requests(ieee, 0);
94a79942 618
354605f4
AKC		 619 schedule_delayed_work(&ieee->softmac_scan_wq,
620 msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME));
94a79942 621
be10ceea 622 mutex_unlock(&ieee->scan_mutex);
94a79942
LF		 623 return;
624
625out:
94a79942
LF		 626 if (IS_DOT11D_ENABLE(ieee))
627 DOT11D_ScanComplete(ieee);
94a79942
LF		 628 ieee->current_network.channel = last_channel;
629
630out1:
631 ieee->actscanning = false;
632 ieee->scan_watch_dog = 0;
633 ieee->scanning_continue = 0;
be10ceea 634 mutex_unlock(&ieee->scan_mutex);
94a79942
LF		 635}
636
637
638
ec0dc6be 639static void rtllib_beacons_start(struct rtllib_device *ieee)
94a79942
LF		 640{
641 unsigned long flags;
3a6b70c3 642
9d92ece8 643 spin_lock_irqsave(&ieee->beacon_lock, flags);
94a79942
LF		 644
645 ieee->beacon_txing = 1;
646 rtllib_send_beacon(ieee);
647
9d92ece8 648 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
94a79942
LF		 649}
650
ec0dc6be 651static void rtllib_beacons_stop(struct rtllib_device *ieee)
94a79942
LF		 652{
653 unsigned long flags;
654
9d92ece8 655 spin_lock_irqsave(&ieee->beacon_lock, flags);
94a79942
LF		 656
657 ieee->beacon_txing = 0;
658 del_timer_sync(&ieee->beacon_timer);
659
9d92ece8 660 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
94a79942
LF		 661
662}
663
664
665void rtllib_stop_send_beacons(struct rtllib_device *ieee)
666{
667 if (ieee->stop_send_beacons)
668 ieee->stop_send_beacons(ieee->dev);
669 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
670 rtllib_beacons_stop(ieee);
671}
3b28499c 672EXPORT_SYMBOL(rtllib_stop_send_beacons);
94a79942
LF		 673
674
675void rtllib_start_send_beacons(struct rtllib_device *ieee)
676{
677 if (ieee->start_send_beacons)
678 ieee->start_send_beacons(ieee->dev);
679 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
680 rtllib_beacons_start(ieee);
681}
3b28499c 682EXPORT_SYMBOL(rtllib_start_send_beacons);
94a79942
LF		 683
684
ec0dc6be 685static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
94a79942 686{
be10ceea 687 mutex_lock(&ieee->scan_mutex);
94a79942 688 ieee->scan_watch_dog = 0;
cb762154 689 if (ieee->scanning_continue == 1) {
94a79942 690 ieee->scanning_continue = 0;
014e4c27 691 ieee->actscanning = false;
94a79942 692
354605f4 693 cancel_delayed_work_sync(&ieee->softmac_scan_wq);
94a79942
LF		 694 }
695
be10ceea 696 mutex_unlock(&ieee->scan_mutex);
94a79942
LF		 697}
698
699void rtllib_stop_scan(struct rtllib_device *ieee)
700{
9d92ece8 701 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
94a79942 702 rtllib_softmac_stop_scan(ieee);
9d92ece8 703 } else {
94a79942
LF		 704 if (ieee->rtllib_stop_hw_scan)
705 ieee->rtllib_stop_hw_scan(ieee->dev);
706 }
707}
3b28499c 708EXPORT_SYMBOL(rtllib_stop_scan);
94a79942
LF		 709
710void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
711{
9d92ece8 712 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
fc00af0c 713 ieee->sync_scan_hurryup = 1;
9d92ece8 714 } else {
94a79942
LF		 715 if (ieee->rtllib_stop_hw_scan)
716 ieee->rtllib_stop_hw_scan(ieee->dev);
717 }
718}
3b28499c 719EXPORT_SYMBOL(rtllib_stop_scan_syncro);
94a79942
LF		 720
721bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
722{
9d92ece8
LF		 723 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
724 if (sync_scan)
94a79942 725 return ieee->be_scan_inprogress;
9d92ece8
LF		 726 else
727 return ieee->actscanning || ieee->be_scan_inprogress;
728 } else {
94a79942
LF		 729 return test_bit(STATUS_SCANNING, &ieee->status);
730 }
731}
3b28499c 732EXPORT_SYMBOL(rtllib_act_scanning);
94a79942
LF		 733
734/* called with ieee->lock held */
ec0dc6be 735static void rtllib_start_scan(struct rtllib_device *ieee)
94a79942 736{
9d92ece8 737 RT_TRACE(COMP_DBG, "===>%s()\n", __func__);
94a79942 738 if (ieee->rtllib_ips_leave_wq != NULL)
9d92ece8 739 ieee->rtllib_ips_leave_wq(ieee->dev);
94a79942 740
9d92ece8 741 if (IS_DOT11D_ENABLE(ieee)) {
94a79942 742 if (IS_COUNTRY_IE_VALID(ieee))
94a79942 743 RESET_CIE_WATCHDOG(ieee);
94a79942 744 }
94a79942
LF		 745 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
746 if (ieee->scanning_continue == 0) {
747 ieee->actscanning = true;
748 ieee->scanning_continue = 1;
354605f4 749 schedule_delayed_work(&ieee->softmac_scan_wq, 0);
94a79942
LF		 750 }
751 } else {
752 if (ieee->rtllib_start_hw_scan)
753 ieee->rtllib_start_hw_scan(ieee->dev);
754 }
94a79942
LF		 755}
756
9afa9370 757/* called with wx_mutex held */
94a79942
LF		 758void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
759{
9d92ece8 760 if (IS_DOT11D_ENABLE(ieee)) {
94a79942 761 if (IS_COUNTRY_IE_VALID(ieee))
94a79942 762 RESET_CIE_WATCHDOG(ieee);
94a79942 763 }
94a79942 764 ieee->sync_scan_hurryup = 0;
9d92ece8 765 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
94a79942 766 rtllib_softmac_scan_syncro(ieee, is_mesh);
9d92ece8 767 } else {
94a79942
LF		 768 if (ieee->rtllib_start_hw_scan)
769 ieee->rtllib_start_hw_scan(ieee->dev);
770 }
94a79942 771}
3b28499c 772EXPORT_SYMBOL(rtllib_start_scan_syncro);
94a79942 773
ec65ef8e
BX		 774static inline struct sk_buff *
775rtllib_authentication_req(struct rtllib_network *beacon,
776 struct rtllib_device *ieee,
777 int challengelen, u8 *daddr)
94a79942
LF		 778{
779 struct sk_buff *skb;
780 struct rtllib_authentication *auth;
7949be66 781 int len;
3a6b70c3 782
9d92ece8
LF		 783 len = sizeof(struct rtllib_authentication) + challengelen +
784 ieee->tx_headroom + 4;
94a79942 785 skb = dev_alloc_skb(len);
94a79942 786
9d92ece8
LF		 787 if (!skb)
788 return NULL;
94a79942 789
94a79942
LF		 790 skb_reserve(skb, ieee->tx_headroom);
791
792 auth = (struct rtllib_authentication *)
793 skb_put(skb, sizeof(struct rtllib_authentication));
794
1830a6d8 795 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
9d92ece8 796 if (challengelen)
7fe30a7d 797 auth->header.frame_ctl |= cpu_to_le16(RTLLIB_FCTL_WEP);
94a79942 798
1830a6d8 799 auth->header.duration_id = cpu_to_le16(0x013a);
b57ceb19
MK		 800 ether_addr_copy(auth->header.addr1, beacon->bssid);
801 ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
802 ether_addr_copy(auth->header.addr3, beacon->bssid);
94a79942
LF		 803 if (ieee->auth_mode == 0)
804 auth->algorithm = WLAN_AUTH_OPEN;
805 else if (ieee->auth_mode == 1)
1830a6d8 806 auth->algorithm = cpu_to_le16(WLAN_AUTH_SHARED_KEY);
94a79942
LF		 807 else if (ieee->auth_mode == 2)
808 auth->algorithm = WLAN_AUTH_OPEN;
809 auth->transaction = cpu_to_le16(ieee->associate_seq);
810 ieee->associate_seq++;
811
812 auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
813
814 return skb;
94a79942
LF		 815}
816
c7ddc288
MK		 817static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee,
818 const u8 *dest)
94a79942
LF		 819{
820 u8 *tag;
821 int beacon_size;
822 struct rtllib_probe_response *beacon_buf;
823 struct sk_buff *skb = NULL;
824 int encrypt;
9d92ece8 825 int atim_len, erp_len;
32c44cb5 826 struct lib80211_crypt_data *crypt;
94a79942
LF		 827
828 char *ssid = ieee->current_network.ssid;
829 int ssid_len = ieee->current_network.ssid_len;
830 int rate_len = ieee->current_network.rates_len+2;
831 int rate_ex_len = ieee->current_network.rates_ex_len;
832 int wpa_ie_len = ieee->wpa_ie_len;
833 u8 erpinfo_content = 0;
834
9d92ece8 835 u8 *tmp_ht_cap_buf = NULL;
94a79942 836 u8 tmp_ht_cap_len = 0;
9d92ece8 837 u8 *tmp_ht_info_buf = NULL;
94a79942 838 u8 tmp_ht_info_len = 0;
7796d93e 839 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
9d92ece8 840 u8 *tmp_generic_ie_buf = NULL;
94a79942
LF		 841 u8 tmp_generic_ie_len = 0;
842
843 if (rate_ex_len > 0)
9d92ece8 844 rate_ex_len += 2;
94a79942
LF		 845
846 if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
847 atim_len = 4;
848 else
849 atim_len = 0;
850
9d92ece8
LF		 851 if ((ieee->current_network.mode == IEEE_G) ||
852 (ieee->current_network.mode == IEEE_N_24G &&
853 ieee->pHTInfo->bCurSuppCCK)) {
94a79942
LF		 854 erp_len = 3;
855 erpinfo_content = 0;
856 if (ieee->current_network.buseprotection)
857 erpinfo_content |= ERP_UseProtection;
9d92ece8 858 } else
94a79942
LF		 859 erp_len = 0;
860
0ddcf5fd 861 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
94a79942 862 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
4c29207a 863 ((strcmp(crypt->ops->name, "R-WEP") == 0 || wpa_ie_len));
9d92ece8
LF		 864 if (ieee->pHTInfo->bCurrentHTSupport) {
865 tmp_ht_cap_buf = (u8 *) &(ieee->pHTInfo->SelfHTCap);
94a79942 866 tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
9d92ece8 867 tmp_ht_info_buf = (u8 *) &(ieee->pHTInfo->SelfHTInfo);
94a79942 868 tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
9d92ece8
LF		 869 HTConstructCapabilityElement(ieee, tmp_ht_cap_buf,
870 &tmp_ht_cap_len, encrypt, false);
871 HTConstructInfoElement(ieee, tmp_ht_info_buf, &tmp_ht_info_len,
872 encrypt);
94a79942 873
9d92ece8 874 if (pHTInfo->bRegRT2RTAggregation) {
94a79942 875 tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
9d92ece8
LF		 876 tmp_generic_ie_len =
877 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
878 HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf,
879 &tmp_generic_ie_len);
94a79942
LF		 880 }
881 }
882
883 beacon_size = sizeof(struct rtllib_probe_response)+2+
9d92ece8
LF		 884 ssid_len + 3 + rate_len + rate_ex_len + atim_len + erp_len
885 + wpa_ie_len + ieee->tx_headroom;
94a79942 886 skb = dev_alloc_skb(beacon_size);
94a79942
LF		 887 if (!skb)
888 return NULL;
889
94a79942
LF		 890 skb_reserve(skb, ieee->tx_headroom);
891
9d92ece8
LF		 892 beacon_buf = (struct rtllib_probe_response *) skb_put(skb,
893 (beacon_size - ieee->tx_headroom));
b57ceb19
MK		 894 ether_addr_copy(beacon_buf->header.addr1, dest);
895 ether_addr_copy(beacon_buf->header.addr2, ieee->dev->dev_addr);
896 ether_addr_copy(beacon_buf->header.addr3, ieee->current_network.bssid);
94a79942
LF		 897
898 beacon_buf->header.duration_id = 0;
899 beacon_buf->beacon_interval =
900 cpu_to_le16(ieee->current_network.beacon_interval);
901 beacon_buf->capability =
9d92ece8
LF		 902 cpu_to_le16(ieee->current_network.capability &
903 WLAN_CAPABILITY_IBSS);
94a79942 904 beacon_buf->capability |=
9d92ece8
LF		 905 cpu_to_le16(ieee->current_network.capability &
906 WLAN_CAPABILITY_SHORT_PREAMBLE);
94a79942 907
9d92ece8
LF		 908 if (ieee->short_slot && (ieee->current_network.capability &
909 WLAN_CAPABILITY_SHORT_SLOT_TIME))
7fe30a7d
RK		 910 beacon_buf->capability |=
911 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
94a79942 912
0ddcf5fd 913 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
94a79942
LF		 914 if (encrypt)
915 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
916
917
918 beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
919 beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
920 beacon_buf->info_element[0].len = ssid_len;
921
9d92ece8 922 tag = (u8 *) beacon_buf->info_element[0].data;
94a79942
LF		 923
924 memcpy(tag, ssid, ssid_len);
925
926 tag += ssid_len;
927
928 *(tag++) = MFIE_TYPE_RATES;
929 *(tag++) = rate_len-2;
9d92ece8
LF		 930 memcpy(tag, ieee->current_network.rates, rate_len-2);
931 tag += rate_len-2;
94a79942
LF		 932
933 *(tag++) = MFIE_TYPE_DS_SET;
934 *(tag++) = 1;
935 *(tag++) = ieee->current_network.channel;
936
9d92ece8
LF		 937 if (atim_len) {
938 u16 val16;
94a79942
LF		 939 *(tag++) = MFIE_TYPE_IBSS_SET;
940 *(tag++) = 2;
1830a6d8 941 val16 = ieee->current_network.atim_window;
94a79942 942 memcpy((u8 *)tag, (u8 *)&val16, 2);
9d92ece8 943 tag += 2;
94a79942
LF		 944 }
945
9d92ece8 946 if (erp_len) {
94a79942
LF		 947 *(tag++) = MFIE_TYPE_ERP;
948 *(tag++) = 1;
949 *(tag++) = erpinfo_content;
950 }
9d92ece8 951 if (rate_ex_len) {
94a79942
LF		 952 *(tag++) = MFIE_TYPE_RATES_EX;
953 *(tag++) = rate_ex_len-2;
9d92ece8
LF		 954 memcpy(tag, ieee->current_network.rates_ex, rate_ex_len-2);
955 tag += rate_ex_len-2;
94a79942
LF		 956 }
957
9d92ece8 958 if (wpa_ie_len) {
94a79942 959 if (ieee->iw_mode == IW_MODE_ADHOC)
94a79942 960 memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
94a79942
LF		 961 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
962 tag += ieee->wpa_ie_len;
963 }
94a79942
LF		 964 return skb;
965}
966
ec0dc6be 967static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
94a79942
LF		 968{
969 struct sk_buff *skb;
9d92ece8 970 u8 *tag;
94a79942 971
32c44cb5 972 struct lib80211_crypt_data *crypt;
94a79942
LF		 973 struct rtllib_assoc_response_frame *assoc;
974 short encrypt;
975
976 unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
9d92ece8
LF		 977 int len = sizeof(struct rtllib_assoc_response_frame) + rate_len +
978 ieee->tx_headroom;
94a79942 979
94a79942 980 skb = dev_alloc_skb(len);
94a79942
LF		 981
982 if (!skb)
983 return NULL;
984
94a79942
LF		 985 skb_reserve(skb, ieee->tx_headroom);
986
987 assoc = (struct rtllib_assoc_response_frame *)
9d92ece8 988 skb_put(skb, sizeof(struct rtllib_assoc_response_frame));
94a79942
LF		 989
990 assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
b57ceb19
MK		 991 ether_addr_copy(assoc->header.addr1, dest);
992 ether_addr_copy(assoc->header.addr3, ieee->dev->dev_addr);
993 ether_addr_copy(assoc->header.addr2, ieee->dev->dev_addr);
94a79942
LF		 994 assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
995 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);
996
997
998 if (ieee->short_slot)
9d92ece8
LF		 999 assoc->capability |=
1000 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
94a79942
LF		 1001
1002 if (ieee->host_encrypt)
0ddcf5fd 1003 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
94a79942
LF		 1004 else
1005 crypt = NULL;
1006
9d92ece8 1007 encrypt = (crypt && crypt->ops);
94a79942
LF		 1008
1009 if (encrypt)
1010 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1011
1012 assoc->status = 0;
1013 assoc->aid = cpu_to_le16(ieee->assoc_id);
1014 if (ieee->assoc_id == 0x2007)
9d92ece8 1015 ieee->assoc_id = 0;
94a79942
LF		 1016 else
1017 ieee->assoc_id++;
1018
9d92ece8 1019 tag = (u8 *) skb_put(skb, rate_len);
94a79942
LF		 1020 rtllib_MFIE_Brate(ieee, &tag);
1021 rtllib_MFIE_Grate(ieee, &tag);
1022
1023 return skb;
1024}
1025
ec0dc6be 1026static struct sk_buff *rtllib_auth_resp(struct rtllib_device *ieee, int status,
9d92ece8 1027 u8 *dest)
94a79942
LF		 1028{
1029 struct sk_buff *skb = NULL;
1030 struct rtllib_authentication *auth;
9d92ece8 1031 int len = ieee->tx_headroom + sizeof(struct rtllib_authentication) + 1;
3a6b70c3 1032
94a79942 1033 skb = dev_alloc_skb(len);
94a79942
LF		 1034 if (!skb)
1035 return NULL;
1036
1037 skb->len = sizeof(struct rtllib_authentication);
1038
94a79942
LF		 1039 skb_reserve(skb, ieee->tx_headroom);
1040
1041 auth = (struct rtllib_authentication *)
1042 skb_put(skb, sizeof(struct rtllib_authentication));
1043
1044 auth->status = cpu_to_le16(status);
1045 auth->transaction = cpu_to_le16(2);
1046 auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
1047
b57ceb19
MK		 1048 ether_addr_copy(auth->header.addr3, ieee->dev->dev_addr);
1049 ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
1050 ether_addr_copy(auth->header.addr1, dest);
94a79942
LF		 1051 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
1052 return skb;
1053
1054
1055}
1056
ec0dc6be 1057static struct sk_buff *rtllib_null_func(struct rtllib_device *ieee, short pwr)
94a79942
LF		 1058{
1059 struct sk_buff *skb;
9d92ece8 1060 struct rtllib_hdr_3addr *hdr;
94a79942 1061
94a79942 1062 skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
94a79942
LF		 1063 if (!skb)
1064 return NULL;
1065
94a79942
LF		 1066 skb_reserve(skb, ieee->tx_headroom);
1067
9d92ece8
LF		 1068 hdr = (struct rtllib_hdr_3addr *)skb_put(skb,
1069 sizeof(struct rtllib_hdr_3addr));
94a79942 1070
b57ceb19
MK		 1071 ether_addr_copy(hdr->addr1, ieee->current_network.bssid);
1072 ether_addr_copy(hdr->addr2, ieee->dev->dev_addr);
1073 ether_addr_copy(hdr->addr3, ieee->current_network.bssid);
94a79942
LF		 1074
1075 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
1076 RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
9d92ece8 1077 (pwr ? RTLLIB_FCTL_PM : 0));
94a79942
LF		 1078
1079 return skb;
1080
1081
1082}
1083
ec0dc6be 1084static struct sk_buff *rtllib_pspoll_func(struct rtllib_device *ieee)
94a79942
LF		 1085{
1086 struct sk_buff *skb;
9d92ece8 1087 struct rtllib_pspoll_hdr *hdr;
94a79942 1088
94a79942 1089 skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
94a79942
LF		 1090 if (!skb)
1091 return NULL;
1092
94a79942
LF		 1093 skb_reserve(skb, ieee->tx_headroom);
1094
9d92ece8
LF		 1095 hdr = (struct rtllib_pspoll_hdr *)skb_put(skb,
1096 sizeof(struct rtllib_pspoll_hdr));
94a79942 1097
b57ceb19
MK		 1098 ether_addr_copy(hdr->bssid, ieee->current_network.bssid);
1099 ether_addr_copy(hdr->ta, ieee->dev->dev_addr);
94a79942
LF		 1100
1101 hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
9d92ece8
LF		 1102 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL | RTLLIB_STYPE_PSPOLL |
1103 RTLLIB_FCTL_PM);
94a79942
LF		 1104
1105 return skb;
1106
1107}
1108
ec0dc6be 1109static void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8 *dest)
94a79942
LF		 1110{
1111 struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);
1112
1113 if (buf)
1114 softmac_mgmt_xmit(buf, ieee);
1115}
1116
1117
ec0dc6be 1118static void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8 *dest)
94a79942
LF		 1119{
1120 struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);
1121
1122 if (buf)
1123 softmac_mgmt_xmit(buf, ieee);
1124}
1125
1126
ec0dc6be 1127static void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
94a79942 1128{
94a79942 1129 struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
3a6b70c3 1130
94a79942
LF		 1131 if (buf)
1132 softmac_mgmt_xmit(buf, ieee);
1133}
1134
1135
ec65ef8e 1136static inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
94a79942
LF		 1137{
1138 int i = 0;
1139
9d92ece8
LF		 1140 do {
1141 if ((ieee->PMKIDList[i].bUsed) &&
1142 (memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
94a79942 1143 break;
92db2a27 1144 i++;
94a79942
LF		 1145 } while (i < NUM_PMKID_CACHE);
1146
1147 if (i == NUM_PMKID_CACHE)
94a79942 1148 i = -1;
9d92ece8 1149 return i;
94a79942
LF		 1150}
1151
ec65ef8e
BX		 1152static inline struct sk_buff *
1153rtllib_association_req(struct rtllib_network *beacon,
1154 struct rtllib_device *ieee)
94a79942
LF		 1155{
1156 struct sk_buff *skb;
94a79942
LF		 1157 struct rtllib_assoc_request_frame *hdr;
1158 u8 *tag, *ies;
1159 int i;
9d92ece8
LF		 1160 u8 *ht_cap_buf = NULL;
1161 u8 ht_cap_len = 0;
1162 u8 *realtek_ie_buf = NULL;
1163 u8 realtek_ie_len = 0;
1164 int wpa_ie_len = ieee->wpa_ie_len;
94a79942 1165 int wps_ie_len = ieee->wps_ie_len;
9d92ece8
LF		 1166 unsigned int ckip_ie_len = 0;
1167 unsigned int ccxrm_ie_len = 0;
1168 unsigned int cxvernum_ie_len = 0;
32c44cb5 1169 struct lib80211_crypt_data *crypt;
94a79942
LF		 1170 int encrypt;
1171 int PMKCacheIdx;
1172
9d92ece8
LF		 1173 unsigned int rate_len = (beacon->rates_len ?
1174 (beacon->rates_len + 2) : 0) +
1175 (beacon->rates_ex_len ? (beacon->rates_ex_len) +
1176 2 : 0);
94a79942 1177
9d92ece8
LF		 1178 unsigned int wmm_info_len = beacon->qos_data.supported ? 9 : 0;
1179 unsigned int turbo_info_len = beacon->Turbo_Enable ? 9 : 0;
94a79942
LF		 1180
1181 int len = 0;
3a6b70c3 1182
0ddcf5fd 1183 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
9d92ece8
LF		 1184 if (crypt != NULL)
1185 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
4c29207a 1186 ((strcmp(crypt->ops->name, "R-WEP") == 0 ||
9d92ece8
LF		 1187 wpa_ie_len));
1188 else
94a79942 1189 encrypt = 0;
94a79942 1190
9d92ece8
LF		 1191 if ((ieee->rtllib_ap_sec_type &&
1192 (ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
4bb01423 1193 ieee->bForcedBgMode) {
94a79942
LF		 1194 ieee->pHTInfo->bEnableHT = 0;
1195 ieee->mode = WIRELESS_MODE_G;
1196 }
1197
9d92ece8
LF		 1198 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1199 ht_cap_buf = (u8 *)&(ieee->pHTInfo->SelfHTCap);
94a79942 1200 ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
9d92ece8
LF		 1201 HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len,
1202 encrypt, true);
94a79942
LF		 1203 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1204 realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
9d92ece8
LF		 1205 realtek_ie_len =
1206 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
1207 HTConstructRT2RTAggElement(ieee, realtek_ie_buf,
1208 &realtek_ie_len);
94a79942
LF		 1209 }
1210 }
1211
1212 if (beacon->bCkipSupported)
94a79942 1213 ckip_ie_len = 30+2;
94a79942 1214 if (beacon->bCcxRmEnable)
94a79942 1215 ccxrm_ie_len = 6+2;
9d92ece8 1216 if (beacon->BssCcxVerNumber >= 2)
94a79942 1217 cxvernum_ie_len = 5+2;
94a79942
LF		 1218
1219 PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
9d92ece8 1220 if (PMKCacheIdx >= 0) {
94a79942 1221 wpa_ie_len += 18;
d69d2054
MK		 1222 netdev_info(ieee->dev, "[PMK cache]: WPA2 IE length: %x\n",
1223 wpa_ie_len);
94a79942 1224 }
9d92ece8 1225 len = sizeof(struct rtllib_assoc_request_frame) + 2
94a79942
LF		 1226 + beacon->ssid_len
1227 + rate_len
1228 + wpa_ie_len
1229 + wps_ie_len
1230 + wmm_info_len
1231 + turbo_info_len
9d92ece8 1232 + ht_cap_len
94a79942
LF		 1233 + realtek_ie_len
1234 + ckip_ie_len
1235 + ccxrm_ie_len
1236 + cxvernum_ie_len
1237 + ieee->tx_headroom;
1238
94a79942 1239 skb = dev_alloc_skb(len);
94a79942
LF		 1240
1241 if (!skb)
1242 return NULL;
1243
94a79942
LF		 1244 skb_reserve(skb, ieee->tx_headroom);
1245
1246 hdr = (struct rtllib_assoc_request_frame *)
9d92ece8 1247 skb_put(skb, sizeof(struct rtllib_assoc_request_frame) + 2);
94a79942
LF		 1248
1249
fa70ae09 1250 hdr->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_REQ);
1830a6d8 1251 hdr->header.duration_id = cpu_to_le16(37);
b57ceb19
MK		 1252 ether_addr_copy(hdr->header.addr1, beacon->bssid);
1253 ether_addr_copy(hdr->header.addr2, ieee->dev->dev_addr);
1254 ether_addr_copy(hdr->header.addr3, beacon->bssid);
94a79942 1255
b57ceb19 1256 ether_addr_copy(ieee->ap_mac_addr, beacon->bssid);
94a79942
LF		 1257
1258 hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
9d92ece8 1259 if (beacon->capability & WLAN_CAPABILITY_PRIVACY)
94a79942
LF		 1260 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1261
1262 if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1263 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1264
9d92ece8
LF		 1265 if (ieee->short_slot &&
1266 (beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
94a79942
LF		 1267 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1268
1269
1830a6d8 1270 hdr->listen_interval = cpu_to_le16(beacon->listen_interval);
94a79942
LF		 1271
1272 hdr->info_element[0].id = MFIE_TYPE_SSID;
1273
1274 hdr->info_element[0].len = beacon->ssid_len;
1275 tag = skb_put(skb, beacon->ssid_len);
1276 memcpy(tag, beacon->ssid, beacon->ssid_len);
1277
1278 tag = skb_put(skb, rate_len);
1279
9d92ece8 1280 if (beacon->rates_len) {
94a79942
LF		 1281 *tag++ = MFIE_TYPE_RATES;
1282 *tag++ = beacon->rates_len;
9d92ece8 1283 for (i = 0; i < beacon->rates_len; i++)
94a79942 1284 *tag++ = beacon->rates[i];
94a79942
LF		 1285 }
1286
9d92ece8 1287 if (beacon->rates_ex_len) {
94a79942
LF		 1288 *tag++ = MFIE_TYPE_RATES_EX;
1289 *tag++ = beacon->rates_ex_len;
9d92ece8 1290 for (i = 0; i < beacon->rates_ex_len; i++)
94a79942 1291 *tag++ = beacon->rates_ex[i];
94a79942
LF		 1292 }
1293
9d92ece8 1294 if (beacon->bCkipSupported) {
16fc54ee 1295 static const u8 AironetIeOui[] = {0x00, 0x01, 0x66};
94a79942 1296 u8 CcxAironetBuf[30];
8310b6c0 1297 struct octet_string osCcxAironetIE;
94a79942 1298
9d92ece8 1299 memset(CcxAironetBuf, 0, 30);
94a79942
LF		 1300 osCcxAironetIE.Octet = CcxAironetBuf;
1301 osCcxAironetIE.Length = sizeof(CcxAironetBuf);
9d92ece8
LF		 1302 memcpy(osCcxAironetIE.Octet, AironetIeOui,
1303 sizeof(AironetIeOui));
94a79942 1304
9d92ece8
LF		 1305 osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |=
1306 (SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC);
94a79942
LF		 1307 tag = skb_put(skb, ckip_ie_len);
1308 *tag++ = MFIE_TYPE_AIRONET;
1309 *tag++ = osCcxAironetIE.Length;
9d92ece8 1310 memcpy(tag, osCcxAironetIE.Octet, osCcxAironetIE.Length);
94a79942
LF		 1311 tag += osCcxAironetIE.Length;
1312 }
1313
9d92ece8 1314 if (beacon->bCcxRmEnable) {
16fc54ee
BW		 1315 static const u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01,
1316 0x00};
8310b6c0 1317 struct octet_string osCcxRmCap;
94a79942 1318
16fc54ee 1319 osCcxRmCap.Octet = (u8 *) CcxRmCapBuf;
94a79942 1320 osCcxRmCap.Length = sizeof(CcxRmCapBuf);
9d92ece8 1321 tag = skb_put(skb, ccxrm_ie_len);
94a79942
LF		 1322 *tag++ = MFIE_TYPE_GENERIC;
1323 *tag++ = osCcxRmCap.Length;
9d92ece8 1324 memcpy(tag, osCcxRmCap.Octet, osCcxRmCap.Length);
94a79942
LF		 1325 tag += osCcxRmCap.Length;
1326 }
1327
9d92ece8
LF		 1328 if (beacon->BssCcxVerNumber >= 2) {
1329 u8 CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
8310b6c0 1330 struct octet_string osCcxVerNum;
3a6b70c3 1331
94a79942
LF		 1332 CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
1333 osCcxVerNum.Octet = CcxVerNumBuf;
1334 osCcxVerNum.Length = sizeof(CcxVerNumBuf);
9d92ece8 1335 tag = skb_put(skb, cxvernum_ie_len);
94a79942
LF		 1336 *tag++ = MFIE_TYPE_GENERIC;
1337 *tag++ = osCcxVerNum.Length;
9d92ece8 1338 memcpy(tag, osCcxVerNum.Octet, osCcxVerNum.Length);
94a79942
LF		 1339 tag += osCcxVerNum.Length;
1340 }
9d92ece8
LF		 1341 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1342 if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC) {
94a79942
LF		 1343 tag = skb_put(skb, ht_cap_len);
1344 *tag++ = MFIE_TYPE_HT_CAP;
1345 *tag++ = ht_cap_len - 2;
9d92ece8
LF		 1346 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1347 tag += ht_cap_len - 2;
94a79942
LF		 1348 }
1349 }
1350
9d92ece8 1351 if (wpa_ie_len) {
94a79942
LF		 1352 tag = skb_put(skb, ieee->wpa_ie_len);
1353 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
1354
9d92ece8 1355 if (PMKCacheIdx >= 0) {
94a79942
LF		 1356 tag = skb_put(skb, 18);
1357 *tag = 1;
1358 *(tag + 1) = 0;
9d92ece8
LF		 1359 memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID,
1360 16);
94a79942
LF		 1361 }
1362 }
1363 if (wmm_info_len) {
9d92ece8 1364 tag = skb_put(skb, wmm_info_len);
94a79942
LF		 1365 rtllib_WMM_Info(ieee, &tag);
1366 }
1367
1368 if (wps_ie_len && ieee->wps_ie) {
1369 tag = skb_put(skb, wps_ie_len);
1370 memcpy(tag, ieee->wps_ie, wps_ie_len);
1371 }
1372
9d92ece8
LF		 1373 tag = skb_put(skb, turbo_info_len);
1374 if (turbo_info_len)
1375 rtllib_TURBO_Info(ieee, &tag);
94a79942 1376
9d92ece8
LF		 1377 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1378 if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC) {
94a79942
LF		 1379 tag = skb_put(skb, ht_cap_len);
1380 *tag++ = MFIE_TYPE_GENERIC;
1381 *tag++ = ht_cap_len - 2;
9d92ece8
LF		 1382 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1383 tag += ht_cap_len - 2;
94a79942
LF		 1384 }
1385
9d92ece8 1386 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
94a79942
LF		 1387 tag = skb_put(skb, realtek_ie_len);
1388 *tag++ = MFIE_TYPE_GENERIC;
1389 *tag++ = realtek_ie_len - 2;
9d92ece8 1390 memcpy(tag, realtek_ie_buf, realtek_ie_len - 2);
94a79942
LF		 1391 }
1392 }
1393
9d92ece8
LF		 1394 kfree(ieee->assocreq_ies);
1395 ieee->assocreq_ies = NULL;
94a79942
LF		 1396 ies = &(hdr->info_element[0].id);
1397 ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
1398 ieee->assocreq_ies = kmalloc(ieee->assocreq_ies_len, GFP_ATOMIC);
1399 if (ieee->assocreq_ies)
1400 memcpy(ieee->assocreq_ies, ies, ieee->assocreq_ies_len);
9d92ece8 1401 else {
d69d2054
MK		 1402 netdev_info(ieee->dev,
1403 "%s()Warning: can't alloc memory for assocreq_ies\n",
1404 __func__);
94a79942
LF		 1405 ieee->assocreq_ies_len = 0;
1406 }
94a79942
LF		 1407 return skb;
1408}
1409
6957248f 1410static void rtllib_associate_abort(struct rtllib_device *ieee)
94a79942 1411{
94a79942 1412 unsigned long flags;
3a6b70c3 1413
94a79942
LF		 1414 spin_lock_irqsave(&ieee->lock, flags);
1415
1416 ieee->associate_seq++;
1417
1418 /* don't scan, and avoid to have the RX path possibily
1419 * try again to associate. Even do not react to AUTH or
1420 * ASSOC response. Just wait for the retry wq to be scheduled.
1421 * Here we will check if there are good nets to associate
1422 * with, so we retry or just get back to NO_LINK and scanning
1423 */
9d92ece8 1424 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING) {
e9fea2ec 1425 netdev_dbg(ieee->dev, "Authentication failed\n");
94a79942 1426 ieee->softmac_stats.no_auth_rs++;
9d92ece8 1427 } else {
e9fea2ec 1428 netdev_dbg(ieee->dev, "Association failed\n");
94a79942
LF		 1429 ieee->softmac_stats.no_ass_rs++;
1430 }
1431
1432 ieee->state = RTLLIB_ASSOCIATING_RETRY;
1433
354605f4
AKC		 1434 schedule_delayed_work(&ieee->associate_retry_wq,
1435 RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
94a79942
LF		 1436
1437 spin_unlock_irqrestore(&ieee->lock, flags);
1438}
1439
ec0dc6be 1440static void rtllib_associate_abort_cb(unsigned long dev)
94a79942
LF		 1441{
1442 rtllib_associate_abort((struct rtllib_device *) dev);
1443}
1444
a0711c4d 1445static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
94a79942
LF		 1446{
1447 struct rtllib_network *beacon = &ieee->current_network;
1448 struct sk_buff *skb;
1449
e9fea2ec 1450 netdev_dbg(ieee->dev, "Stopping scan\n");
94a79942
LF		 1451
1452 ieee->softmac_stats.tx_auth_rq++;
1453
9d92ece8 1454 skb = rtllib_authentication_req(beacon, ieee, 0, daddr);
94a79942
LF		 1455
1456 if (!skb)
1457 rtllib_associate_abort(ieee);
9d92ece8 1458 else {
dc986e3e 1459 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING;
e9fea2ec 1460 netdev_dbg(ieee->dev, "Sending authentication request\n");
94a79942 1461 softmac_mgmt_xmit(skb, ieee);
9d92ece8 1462 if (!timer_pending(&ieee->associate_timer)) {
94a79942
LF		 1463 ieee->associate_timer.expires = jiffies + (HZ / 2);
1464 add_timer(&ieee->associate_timer);
1465 }
1466 }
1467}
1468
35e33b04
MK		 1469static void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge,
1470 int chlen)
94a79942
LF		 1471{
1472 u8 *c;
1473 struct sk_buff *skb;
1474 struct rtllib_network *beacon = &ieee->current_network;
1475
1476 ieee->associate_seq++;
1477 ieee->softmac_stats.tx_auth_rq++;
1478
9d92ece8 1479 skb = rtllib_authentication_req(beacon, ieee, chlen + 2, beacon->bssid);
94a79942
LF		 1480
1481 if (!skb)
1482 rtllib_associate_abort(ieee);
9d92ece8 1483 else {
94a79942
LF		 1484 c = skb_put(skb, chlen+2);
1485 *(c++) = MFIE_TYPE_CHALLENGE;
1486 *(c++) = chlen;
1487 memcpy(c, challenge, chlen);
1488
e9fea2ec
MK		 1489 netdev_dbg(ieee->dev,
1490 "Sending authentication challenge response\n");
94a79942 1491
9d92ece8
LF		 1492 rtllib_encrypt_fragment(ieee, skb,
1493 sizeof(struct rtllib_hdr_3addr));
94a79942
LF		 1494
1495 softmac_mgmt_xmit(skb, ieee);
1496 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1497 }
1498 kfree(challenge);
1499}
1500
ec0dc6be 1501static void rtllib_associate_step2(struct rtllib_device *ieee)
94a79942 1502{
9d92ece8 1503 struct sk_buff *skb;
94a79942
LF		 1504 struct rtllib_network *beacon = &ieee->current_network;
1505
1506 del_timer_sync(&ieee->associate_timer);
1507
e9fea2ec 1508 netdev_dbg(ieee->dev, "Sending association request\n");
94a79942
LF		 1509
1510 ieee->softmac_stats.tx_ass_rq++;
9d92ece8 1511 skb = rtllib_association_req(beacon, ieee);
94a79942
LF		 1512 if (!skb)
1513 rtllib_associate_abort(ieee);
9d92ece8 1514 else {
94a79942
LF		 1515 softmac_mgmt_xmit(skb, ieee);
1516 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1517 }
1518}
1519
ec0dc6be 1520static void rtllib_associate_complete_wq(void *data)
94a79942 1521{
9d92ece8
LF		 1522 struct rtllib_device *ieee = (struct rtllib_device *)
1523 container_of_work_rsl(data,
1524 struct rtllib_device,
1525 associate_complete_wq);
bd60ac14 1526 struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
d69d2054 1527 netdev_info(ieee->dev, "Associated successfully\n");
4bb01423 1528 if (!ieee->is_silent_reset) {
d69d2054 1529 netdev_info(ieee->dev, "normal associate\n");
9d92ece8
LF		 1530 notify_wx_assoc_event(ieee);
1531 }
94a79942
LF		 1532
1533 netif_carrier_on(ieee->dev);
1534 ieee->is_roaming = false;
1535 if (rtllib_is_54g(&ieee->current_network) &&
9d92ece8 1536 (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
94a79942 1537 ieee->rate = 108;
d69d2054 1538 netdev_info(ieee->dev, "Using G rates:%d\n", ieee->rate);
9d92ece8 1539 } else {
94a79942
LF		 1540 ieee->rate = 22;
1541 ieee->SetWirelessMode(ieee->dev, IEEE_B);
d69d2054 1542 netdev_info(ieee->dev, "Using B rates:%d\n", ieee->rate);
94a79942 1543 }
9d92ece8 1544 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
d69d2054 1545 netdev_info(ieee->dev, "Successfully associated, ht enabled\n");
94a79942
LF		 1546 HTOnAssocRsp(ieee);
1547 } else {
d69d2054
MK		 1548 netdev_info(ieee->dev,
1549 "Successfully associated, ht not enabled(%d, %d)\n",
1550 ieee->pHTInfo->bCurrentHTSupport,
1551 ieee->pHTInfo->bEnableHT);
94a79942
LF		 1552 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1553 }
9d92ece8
LF		 1554 ieee->LinkDetectInfo.SlotNum = 2 * (1 +
1555 ieee->current_network.beacon_interval /
1556 500);
1557 if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 ||
1558 ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) {
94a79942 1559 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
9d92ece8 1560 ieee->LinkDetectInfo.NumRecvDataInPeriod = 1;
94a79942
LF		 1561 }
1562 pPSC->LpsIdleCount = 0;
1563 ieee->link_change(ieee->dev);
1564
4bb01423 1565 if (ieee->is_silent_reset) {
d69d2054 1566 netdev_info(ieee->dev, "silent reset associate\n");
014e4c27 1567 ieee->is_silent_reset = false;
9d92ece8 1568 }
94a79942
LF		 1569
1570 if (ieee->data_hard_resume)
1571 ieee->data_hard_resume(ieee->dev);
1572
94a79942
LF		 1573}
1574
1575static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
1576{
94a79942
LF		 1577}
1578
ec0dc6be 1579static void rtllib_associate_complete(struct rtllib_device *ieee)
94a79942
LF		 1580{
1581 del_timer_sync(&ieee->associate_timer);
1582
1583 ieee->state = RTLLIB_LINKED;
1584 rtllib_sta_send_associnfo(ieee);
1585
354605f4 1586 schedule_work(&ieee->associate_complete_wq);
94a79942
LF		 1587}
1588
ec0dc6be 1589static void rtllib_associate_procedure_wq(void *data)
94a79942 1590{
9d92ece8
LF		 1591 struct rtllib_device *ieee = container_of_dwork_rsl(data,
1592 struct rtllib_device,
1593 associate_procedure_wq);
94a79942
LF		 1594 rtllib_stop_scan_syncro(ieee);
1595 if (ieee->rtllib_ips_leave != NULL)
1596 ieee->rtllib_ips_leave(ieee->dev);
9afa9370 1597 mutex_lock(&ieee->wx_mutex);
94a79942
LF		 1598
1599 if (ieee->data_hard_stop)
1600 ieee->data_hard_stop(ieee->dev);
1601
1602 rtllib_stop_scan(ieee);
9d92ece8
LF		 1603 RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__,
1604 ieee->current_network.channel);
94a79942 1605 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
9d92ece8 1606 if (ieee->eRFPowerState == eRfOff) {
0822339b
MK		 1607 RT_TRACE(COMP_DBG,
1608 "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",
1609 __func__);
94a79942
LF		 1610 if (ieee->rtllib_ips_leave_wq != NULL)
1611 ieee->rtllib_ips_leave_wq(ieee->dev);
9afa9370 1612 mutex_unlock(&ieee->wx_mutex);
94a79942
LF		 1613 return;
1614 }
1615 ieee->associate_seq = 1;
1616
1617 rtllib_associate_step1(ieee, ieee->current_network.bssid);
1618
9afa9370 1619 mutex_unlock(&ieee->wx_mutex);
94a79942
LF		 1620}
1621
9d92ece8
LF		 1622inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
1623 struct rtllib_network *net)
94a79942 1624{
9d92ece8 1625 u8 tmp_ssid[IW_ESSID_MAX_SIZE + 1];
94a79942
LF		 1626 int tmp_ssid_len = 0;
1627
9d92ece8 1628 short apset, ssidset, ssidbroad, apmatch, ssidmatch;
94a79942
LF		 1629
1630 /* we are interested in new new only if we are not associated
1631 * and we are not associating / authenticating
1632 */
1633 if (ieee->state != RTLLIB_NOLINK)
1634 return;
1635
9d92ece8
LF		 1636 if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability &
1637 WLAN_CAPABILITY_ESS))
94a79942
LF		 1638 return;
1639
9d92ece8
LF		 1640 if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability &
1641 WLAN_CAPABILITY_IBSS))
94a79942
LF		 1642 return;
1643
9d92ece8
LF		 1644 if ((ieee->iw_mode == IW_MODE_ADHOC) &&
1645 (net->channel > ieee->ibss_maxjoin_chal))
94a79942 1646 return;
9d92ece8 1647 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
94a79942
LF		 1648 /* if the user specified the AP MAC, we need also the essid
1649 * This could be obtained by beacons or, if the network does not
1650 * broadcast it, it can be put manually.
1651 */
1652 apset = ieee->wap_set;
1653 ssidset = ieee->ssid_set;
9d92ece8
LF		 1654 ssidbroad = !(net->ssid_len == 0 || net->ssid[0] == '\0');
1655 apmatch = (memcmp(ieee->current_network.bssid, net->bssid,
1656 ETH_ALEN) == 0);
1657 if (!ssidbroad) {
1658 ssidmatch = (ieee->current_network.ssid_len ==
1659 net->hidden_ssid_len) &&
1660 (!strncmp(ieee->current_network.ssid,
1661 net->hidden_ssid, net->hidden_ssid_len));
1662 if (net->hidden_ssid_len > 0) {
1663 strncpy(net->ssid, net->hidden_ssid,
1664 net->hidden_ssid_len);
1665 net->ssid_len = net->hidden_ssid_len;
1666 ssidbroad = 1;
1667 }
1668 } else
1669 ssidmatch =
1670 (ieee->current_network.ssid_len == net->ssid_len) &&
1671 (!strncmp(ieee->current_network.ssid, net->ssid,
1672 net->ssid_len));
1673
1674 /* if the user set the AP check if match.
1675 * if the network does not broadcast essid we check the
cd017123 1676 * user supplied ANY essid
9d92ece8
LF		 1677 * if the network does broadcast and the user does not set
1678 * essid it is OK
1679 * if the network does broadcast and the user did set essid
1680 * check if essid match
1681 * if the ap is not set, check that the user set the bssid
db2c8da0 1682 * and the network does broadcast and that those two bssid match
9d92ece8
LF		 1683 */
1684 if ((apset && apmatch &&
1685 ((ssidset && ssidbroad && ssidmatch) ||
1686 (ssidbroad && !ssidset) || (!ssidbroad && ssidset))) ||
1687 (!apset && ssidset && ssidbroad && ssidmatch) ||
1688 (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
1689 /* if the essid is hidden replace it with the
14b40d92
MK		 1690 * essid provided by the user.
1691 */
9d92ece8
LF		 1692 if (!ssidbroad) {
1693 strncpy(tmp_ssid, ieee->current_network.ssid,
1694 IW_ESSID_MAX_SIZE);
1695 tmp_ssid_len = ieee->current_network.ssid_len;
1696 }
1697 memcpy(&ieee->current_network, net,
1698 sizeof(struct rtllib_network));
1699 if (!ssidbroad) {
1700 strncpy(ieee->current_network.ssid, tmp_ssid,
1701 IW_ESSID_MAX_SIZE);
1702 ieee->current_network.ssid_len = tmp_ssid_len;
1703 }
d69d2054
MK		 1704 netdev_info(ieee->dev,
1705 "Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",
1706 ieee->current_network.ssid,
1707 ieee->current_network.channel,
1708 ieee->current_network.qos_data.supported,
1709 ieee->pHTInfo->bEnableHT,
1710 ieee->current_network.bssht.bdSupportHT,
1711 ieee->current_network.mode,
1712 ieee->current_network.flags);
9d92ece8
LF		 1713
1714 if ((rtllib_act_scanning(ieee, false)) &&
1715 !(ieee->softmac_features & IEEE_SOFTMAC_SCAN))
1716 rtllib_stop_scan_syncro(ieee);
1717
9d92ece8
LF		 1718 HTResetIOTSetting(ieee->pHTInfo);
1719 ieee->wmm_acm = 0;
1720 if (ieee->iw_mode == IW_MODE_INFRA) {
1721 /* Join the network for the first time */
1722 ieee->AsocRetryCount = 0;
1723 if ((ieee->current_network.qos_data.supported == 1) &&
35e33b04 1724 ieee->current_network.bssht.bdSupportHT)
9d92ece8
LF		 1725 HTResetSelfAndSavePeerSetting(ieee,
1726 &(ieee->current_network));
1727 else
1728 ieee->pHTInfo->bCurrentHTSupport =
1729 false;
1730
1731 ieee->state = RTLLIB_ASSOCIATING;
1732 if (ieee->LedControlHandler != NULL)
1733 ieee->LedControlHandler(ieee->dev,
1734 LED_CTL_START_TO_LINK);
354605f4 1735 schedule_delayed_work(
9d92ece8
LF		 1736 &ieee->associate_procedure_wq, 0);
1737 } else {
1738 if (rtllib_is_54g(&ieee->current_network) &&
35e33b04
MK		 1739 (ieee->modulation &
1740 RTLLIB_OFDM_MODULATION)) {
9d92ece8 1741 ieee->rate = 108;
35e33b04
MK		 1742 ieee->SetWirelessMode(ieee->dev,
1743 IEEE_G);
1744 netdev_info(ieee->dev,
1745 "Using G rates\n");
94a79942 1746 } else {
9d92ece8 1747 ieee->rate = 22;
35e33b04
MK		 1748 ieee->SetWirelessMode(ieee->dev,
1749 IEEE_B);
1750 netdev_info(ieee->dev,
1751 "Using B rates\n");
94a79942 1752 }
9d92ece8
LF		 1753 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1754 ieee->state = RTLLIB_LINKED;
1755 }
94a79942
LF		 1756 }
1757 }
94a79942
LF		 1758}
1759
6957248f 1760static void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
94a79942
LF		 1761{
1762 unsigned long flags;
1763 struct rtllib_network *target;
1764
1765 spin_lock_irqsave(&ieee->lock, flags);
1766
1767 list_for_each_entry(target, &ieee->network_list, list) {
1768
1769 /* if the state become different that NOLINK means
1770 * we had found what we are searching for
1771 */
1772
1773 if (ieee->state != RTLLIB_NOLINK)
1774 break;
1775
9d92ece8
LF		 1776 if (ieee->scan_age == 0 || time_after(target->last_scanned +
1777 ieee->scan_age, jiffies))
1778 rtllib_softmac_new_net(ieee, target);
94a79942 1779 }
94a79942 1780 spin_unlock_irqrestore(&ieee->lock, flags);
94a79942
LF		 1781}
1782
e9fea2ec
MK		 1783static inline u16 auth_parse(struct net_device *dev, struct sk_buff *skb,
1784 u8 **challenge, int *chlen)
94a79942
LF		 1785{
1786 struct rtllib_authentication *a;
1787 u8 *t;
3a6b70c3 1788
9d92ece8
LF		 1789 if (skb->len < (sizeof(struct rtllib_authentication) -
1790 sizeof(struct rtllib_info_element))) {
e9fea2ec 1791 netdev_dbg(dev, "invalid len in auth resp: %d\n", skb->len);
94a79942
LF		 1792 return 0xcafe;
1793 }
1794 *challenge = NULL;
9d92ece8
LF		 1795 a = (struct rtllib_authentication *) skb->data;
1796 if (skb->len > (sizeof(struct rtllib_authentication) + 3)) {
94a79942
LF		 1797 t = skb->data + sizeof(struct rtllib_authentication);
1798
9d92ece8 1799 if (*(t++) == MFIE_TYPE_CHALLENGE) {
94a79942 1800 *chlen = *(t++);
6dea0da1 1801 *challenge = kmemdup(t, *chlen, GFP_ATOMIC);
ae053253
HP		 1802 if (!*challenge)
1803 return -ENOMEM;
94a79942
LF		 1804 }
1805 }
640f7d69 1806 return le16_to_cpu(a->status);
94a79942
LF		 1807}
1808
e9fea2ec 1809static int auth_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
94a79942
LF		 1810{
1811 struct rtllib_authentication *a;
1812
9d92ece8
LF		 1813 if (skb->len < (sizeof(struct rtllib_authentication) -
1814 sizeof(struct rtllib_info_element))) {
e9fea2ec 1815 netdev_dbg(dev, "invalid len in auth request: %d\n", skb->len);
94a79942
LF		 1816 return -1;
1817 }
9d92ece8 1818 a = (struct rtllib_authentication *) skb->data;
94a79942 1819
b57ceb19 1820 ether_addr_copy(dest, a->header.addr2);
94a79942
LF		 1821
1822 if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1823 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1824
1825 return WLAN_STATUS_SUCCESS;
1826}
1827
9d92ece8
LF		 1828static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1829 u8 *src)
94a79942
LF		 1830{
1831 u8 *tag;
1832 u8 *skbend;
9d92ece8 1833 u8 *ssid = NULL;
94a79942 1834 u8 ssidlen = 0;
94a79942
LF		 1835 struct rtllib_hdr_3addr *header =
1836 (struct rtllib_hdr_3addr *) skb->data;
9d92ece8 1837 bool bssid_match;
94a79942 1838
9d92ece8 1839 if (skb->len < sizeof(struct rtllib_hdr_3addr))
94a79942 1840 return -1; /* corrupted */
94a79942 1841
9d92ece8 1842 bssid_match =
c2f8b4ab 1843 (!ether_addr_equal(header->addr3, ieee->current_network.bssid)) &&
0c43e56c 1844 (!is_broadcast_ether_addr(header->addr3));
9d92ece8
LF		 1845 if (bssid_match)
1846 return -1;
94a79942 1847
b57ceb19 1848 ether_addr_copy(src, header->addr2);
94a79942 1849
9d92ece8 1850 skbend = (u8 *)skb->data + skb->len;
94a79942 1851
9d92ece8 1852 tag = skb->data + sizeof(struct rtllib_hdr_3addr);
94a79942 1853
9d92ece8
LF		 1854 while (tag + 1 < skbend) {
1855 if (*tag == 0) {
1856 ssid = tag + 2;
1857 ssidlen = *(tag + 1);
94a79942
LF		 1858 break;
1859 }
1860 tag++; /* point to the len field */
1861 tag = tag + *(tag); /* point to the last data byte of the tag */
1862 tag++; /* point to the next tag */
1863 }
1864
9d92ece8
LF		 1865 if (ssidlen == 0)
1866 return 1;
94a79942 1867
9d92ece8
LF		 1868 if (!ssid)
1869 return 1; /* ssid not found in tagged param */
94a79942 1870
9d92ece8 1871 return !strncmp(ssid, ieee->current_network.ssid, ssidlen);
94a79942
LF		 1872}
1873
e9fea2ec 1874static int assoc_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
94a79942
LF		 1875{
1876 struct rtllib_assoc_request_frame *a;
1877
1878 if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
1879 sizeof(struct rtllib_info_element))) {
e9fea2ec 1880 netdev_dbg(dev, "invalid len in auth request:%d\n", skb->len);
94a79942
LF		 1881 return -1;
1882 }
1883
9d92ece8 1884 a = (struct rtllib_assoc_request_frame *) skb->data;
94a79942 1885
b57ceb19 1886 ether_addr_copy(dest, a->header.addr2);
94a79942
LF		 1887
1888 return 0;
1889}
1890
9d92ece8
LF		 1891static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1892 int *aid)
94a79942
LF		 1893{
1894 struct rtllib_assoc_response_frame *response_head;
1895 u16 status_code;
1896
9d92ece8 1897 if (skb->len < sizeof(struct rtllib_assoc_response_frame)) {
e9fea2ec
MK		 1898 netdev_dbg(ieee->dev, "Invalid len in auth resp: %d\n",
1899 skb->len);
94a79942
LF		 1900 return 0xcafe;
1901 }
1902
9d92ece8 1903 response_head = (struct rtllib_assoc_response_frame *) skb->data;
94a79942
LF		 1904 *aid = le16_to_cpu(response_head->aid) & 0x3fff;
1905
1906 status_code = le16_to_cpu(response_head->status);
9d92ece8
LF		 1907 if ((status_code == WLAN_STATUS_ASSOC_DENIED_RATES ||
1908 status_code == WLAN_STATUS_CAPS_UNSUPPORTED) &&
94a79942 1909 ((ieee->mode == IEEE_G) &&
9d92ece8
LF		 1910 (ieee->current_network.mode == IEEE_N_24G) &&
1911 (ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
1912 ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
1913 } else {
1914 ieee->AsocRetryCount = 0;
94a79942
LF		 1915 }
1916
1917 return le16_to_cpu(response_head->status);
1918}
1919
1920void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
1921{
1922 u8 dest[ETH_ALEN];
3a6b70c3 1923
94a79942 1924 ieee->softmac_stats.rx_probe_rq++;
9d92ece8 1925 if (probe_rq_parse(ieee, skb, dest) > 0) {
94a79942
LF		 1926 ieee->softmac_stats.tx_probe_rs++;
1927 rtllib_resp_to_probe(ieee, dest);
94a79942
LF		 1928 }
1929}
1930
9d92ece8
LF		 1931static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee,
1932 struct sk_buff *skb)
94a79942
LF		 1933{
1934 u8 dest[ETH_ALEN];
1935 int status;
3a6b70c3 1936
94a79942
LF		 1937 ieee->softmac_stats.rx_auth_rq++;
1938
e9fea2ec 1939 status = auth_rq_parse(ieee->dev, skb, dest);
9d92ece8 1940 if (status != -1)
94a79942 1941 rtllib_resp_to_auth(ieee, status, dest);
94a79942
LF		 1942}
1943
9d92ece8
LF		 1944static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee,
1945 struct sk_buff *skb)
94a79942 1946{
94a79942
LF		 1947 u8 dest[ETH_ALEN];
1948
06c11107 1949
94a79942 1950 ieee->softmac_stats.rx_ass_rq++;
e9fea2ec 1951 if (assoc_rq_parse(ieee->dev, skb, dest) != -1)
94a79942 1952 rtllib_resp_to_assoc_rq(ieee, dest);
94a79942 1953
d69d2054 1954 netdev_info(ieee->dev, "New client associated: %pM\n", dest);
94a79942
LF		 1955}
1956
94a79942
LF		 1957void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
1958{
1959
1960 struct sk_buff *buf = rtllib_null_func(ieee, pwr);
1961
1962 if (buf)
1963 softmac_ps_mgmt_xmit(buf, ieee);
94a79942 1964}
3b28499c 1965EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
94a79942
LF		 1966
1967void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
1968{
94a79942
LF		 1969 struct sk_buff *buf = rtllib_pspoll_func(ieee);
1970
1971 if (buf)
1972 softmac_ps_mgmt_xmit(buf, ieee);
94a79942
LF		 1973}
1974
0dd56506 1975static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
94a79942
LF		 1976{
1977 int timeout = ieee->ps_timeout;
1978 u8 dtim;
bd60ac14 1979 struct rt_pwr_save_ctrl *pPSC = &(ieee->PowerSaveControl);
94a79942 1980
9d92ece8
LF		 1981 if (ieee->LPSDelayCnt) {
1982 ieee->LPSDelayCnt--;
94a79942
LF		 1983 return 0;
1984 }
1985
1986 dtim = ieee->current_network.dtim_data;
1987 if (!(dtim & RTLLIB_DTIM_VALID))
1988 return 0;
1989 timeout = ieee->current_network.beacon_interval;
1990 ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
9d92ece8 1991 /* there's no need to nofity AP that I find you buffered
14b40d92
MK		 1992 * with broadcast packet
1993 */
94a79942
LF		 1994 if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
1995 return 2;
1996
8b9733c1 1997 if (!time_after(jiffies,
4d0e9657 1998 dev_trans_start(ieee->dev) + msecs_to_jiffies(timeout)))
94a79942 1999 return 0;
8b9733c1
VT		 2000 if (!time_after(jiffies,
2001 ieee->last_rx_ps_time + msecs_to_jiffies(timeout)))
94a79942 2002 return 0;
9d92ece8
LF		 2003 if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
2004 (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
94a79942
LF		 2005 return 0;
2006
9d92ece8 2007 if (time) {
4bb01423 2008 if (ieee->bAwakePktSent) {
94a79942
LF		 2009 pPSC->LPSAwakeIntvl = 1;
2010 } else {
35e33b04 2011 u8 MaxPeriod = 1;
94a79942
LF		 2012
2013 if (pPSC->LPSAwakeIntvl == 0)
2014 pPSC->LPSAwakeIntvl = 1;
2015 if (pPSC->RegMaxLPSAwakeIntvl == 0)
2016 MaxPeriod = 1;
2017 else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
2018 MaxPeriod = ieee->current_network.dtim_period;
2019 else
2020 MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
9d92ece8
LF		 2021 pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >=
2022 MaxPeriod) ? MaxPeriod :
2023 (pPSC->LPSAwakeIntvl + 1);
94a79942
LF		 2024 }
2025 {
2026 u8 LPSAwakeIntvl_tmp = 0;
2027 u8 period = ieee->current_network.dtim_period;
2028 u8 count = ieee->current_network.tim.tim_count;
3a6b70c3 2029
9d92ece8 2030 if (count == 0) {
94a79942 2031 if (pPSC->LPSAwakeIntvl > period)
9d92ece8
LF		 2032 LPSAwakeIntvl_tmp = period +
2033 (pPSC->LPSAwakeIntvl -
2034 period) -
2035 ((pPSC->LPSAwakeIntvl-period) %
2036 period);
94a79942
LF		 2037 else
2038 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2039
2040 } else {
9d92ece8
LF		 2041 if (pPSC->LPSAwakeIntvl >
2042 ieee->current_network.tim.tim_count)
2043 LPSAwakeIntvl_tmp = count +
2044 (pPSC->LPSAwakeIntvl - count) -
2045 ((pPSC->LPSAwakeIntvl-count)%period);
94a79942
LF		 2046 else
2047 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2048 }
2049
0dd56506 2050 *time = ieee->current_network.last_dtim_sta_time
8b9733c1 2051 + msecs_to_jiffies(ieee->current_network.beacon_interval *
9d92ece8 2052 LPSAwakeIntvl_tmp);
94a79942
LF		 2053 }
2054 }
2055
94a79942
LF		 2056 return 1;
2057
2058
2059}
2060
ec0dc6be 2061static inline void rtllib_sta_ps(struct rtllib_device *ieee)
94a79942 2062{
0dd56506 2063 u64 time;
94a79942 2064 short sleep;
9d92ece8 2065 unsigned long flags, flags2;
94a79942
LF		 2066
2067 spin_lock_irqsave(&ieee->lock, flags);
2068
2069 if ((ieee->ps == RTLLIB_PS_DISABLED ||
9d92ece8
LF		 2070 ieee->iw_mode != IW_MODE_INFRA ||
2071 ieee->state != RTLLIB_LINKED)) {
0822339b
MK		 2072 RT_TRACE(COMP_DBG,
2073 "=====>%s(): no need to ps,wake up!! ieee->ps is %d, ieee->iw_mode is %d, ieee->state is %d\n",
2074 __func__, ieee->ps, ieee->iw_mode, ieee->state);
94a79942 2075 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
94a79942
LF		 2076 rtllib_sta_wakeup(ieee, 1);
2077
2078 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2079 }
0dd56506 2080 sleep = rtllib_sta_ps_sleep(ieee, &time);
94a79942
LF		 2081 /* 2 wake, 1 sleep, 0 do nothing */
2082 if (sleep == 0)
94a79942 2083 goto out;
9d92ece8
LF		 2084 if (sleep == 1) {
2085 if (ieee->sta_sleep == LPS_IS_SLEEP) {
0dd56506 2086 ieee->enter_sleep_state(ieee->dev, time);
9d92ece8 2087 } else if (ieee->sta_sleep == LPS_IS_WAKE) {
94a79942
LF		 2088 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2089
9d92ece8 2090 if (ieee->ps_is_queue_empty(ieee->dev)) {
94a79942
LF		 2091 ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
2092 ieee->ack_tx_to_ieee = 1;
9d92ece8 2093 rtllib_sta_ps_send_null_frame(ieee, 1);
0dd56506 2094 ieee->ps_time = time;
94a79942
LF		 2095 }
2096 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2097
2098 }
2099
2100 ieee->bAwakePktSent = false;
2101
9d92ece8 2102 } else if (sleep == 2) {
94a79942
LF		 2103 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2104
9d92ece8 2105 rtllib_sta_wakeup(ieee, 1);
94a79942
LF		 2106
2107 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2108 }
2109
2110out:
2111 spin_unlock_irqrestore(&ieee->lock, flags);
2112
2113}
2114
6957248f 2115static void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
94a79942 2116{
9d92ece8
LF		 2117 if (ieee->sta_sleep == LPS_IS_WAKE) {
2118 if (nl) {
2119 if (ieee->pHTInfo->IOTAction &
2120 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
94a79942
LF		 2121 ieee->ack_tx_to_ieee = 1;
2122 rtllib_sta_ps_send_null_frame(ieee, 0);
9d92ece8 2123 } else {
94a79942
LF		 2124 ieee->ack_tx_to_ieee = 1;
2125 rtllib_sta_ps_send_pspoll_frame(ieee);
2126 }
2127 }
2128 return;
2129
2130 }
2131
2132 if (ieee->sta_sleep == LPS_IS_SLEEP)
2133 ieee->sta_wake_up(ieee->dev);
9d92ece8
LF		 2134 if (nl) {
2135 if (ieee->pHTInfo->IOTAction &
2136 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
94a79942 2137 ieee->ack_tx_to_ieee = 1;
94a79942 2138 rtllib_sta_ps_send_null_frame(ieee, 0);
9d92ece8 2139 } else {
94a79942
LF		 2140 ieee->ack_tx_to_ieee = 1;
2141 ieee->polling = true;
2142 rtllib_sta_ps_send_pspoll_frame(ieee);
2143 }
2144
2145 } else {
2146 ieee->sta_sleep = LPS_IS_WAKE;
2147 ieee->polling = false;
2148 }
2149}
2150
2151void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
2152{
9d92ece8 2153 unsigned long flags, flags2;
94a79942
LF		 2154
2155 spin_lock_irqsave(&ieee->lock, flags);
2156
9d92ece8 2157 if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND) {
94a79942 2158 /* Null frame with PS bit set */
9d92ece8 2159 if (success) {
94a79942 2160 ieee->sta_sleep = LPS_IS_SLEEP;
0dd56506 2161 ieee->enter_sleep_state(ieee->dev, ieee->ps_time);
94a79942
LF		 2162 }
2163 /* if the card report not success we can't be sure the AP
2164 * has not RXed so we can't assume the AP believe us awake
2165 */
2166 } else {/* 21112005 - tx again null without PS bit if lost */
2167
9d92ece8 2168 if ((ieee->sta_sleep == LPS_IS_WAKE) && !success) {
94a79942 2169 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
9d92ece8
LF		 2170 if (ieee->pHTInfo->IOTAction &
2171 HT_IOT_ACT_NULL_DATA_POWER_SAVING)
94a79942 2172 rtllib_sta_ps_send_null_frame(ieee, 0);
94a79942 2173 else
94a79942 2174 rtllib_sta_ps_send_pspoll_frame(ieee);
94a79942
LF		 2175 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2176 }
2177 }
2178 spin_unlock_irqrestore(&ieee->lock, flags);
2179}
3b28499c 2180EXPORT_SYMBOL(rtllib_ps_tx_ack);
94a79942 2181
35e33b04
MK		 2182static void rtllib_process_action(struct rtllib_device *ieee,
2183 struct sk_buff *skb)
94a79942
LF		 2184{
2185 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
9d92ece8 2186 u8 *act = rtllib_get_payload((struct rtllib_hdr *)header);
94a79942
LF		 2187 u8 category = 0;
2188
2189 if (act == NULL) {
11e672c3
MK		 2190 netdev_warn(ieee->dev,
2191 "Error getting payload of action frame\n");
94a79942
LF		 2192 return;
2193 }
2194
2195 category = *act;
9d92ece8 2196 act++;
94a79942 2197 switch (category) {
9d92ece8
LF		 2198 case ACT_CAT_BA:
2199 switch (*act) {
2200 case ACT_ADDBAREQ:
2201 rtllib_rx_ADDBAReq(ieee, skb);
2202 break;
2203 case ACT_ADDBARSP:
2204 rtllib_rx_ADDBARsp(ieee, skb);
94a79942 2205 break;
9d92ece8
LF		 2206 case ACT_DELBA:
2207 rtllib_rx_DELBA(ieee, skb);
94a79942 2208 break;
9d92ece8
LF		 2209 }
2210 break;
2211 default:
2212 break;
94a79942 2213 }
94a79942
LF		 2214}
2215
ec65ef8e
BX		 2216static inline int
2217rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
2218 struct rtllib_rx_stats *rx_stats)
94a79942
LF		 2219{
2220 u16 errcode;
2221 int aid;
9d92ece8 2222 u8 *ies;
94a79942
LF		 2223 struct rtllib_assoc_response_frame *assoc_resp;
2224 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
fa70ae09 2225 u16 frame_ctl = le16_to_cpu(header->frame_ctl);
94a79942 2226
e9fea2ec 2227 netdev_dbg(ieee->dev, "received [RE]ASSOCIATION RESPONSE (%d)\n",
fa70ae09 2228 WLAN_FC_GET_STYPE(frame_ctl));
94a79942
LF		 2229
2230 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
9d92ece8
LF		 2231 ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
2232 (ieee->iw_mode == IW_MODE_INFRA)) {
2233 errcode = assoc_parse(ieee, skb, &aid);
4c29207a 2234 if (!errcode) {
9d92ece8
LF		 2235 struct rtllib_network *network =
2236 kzalloc(sizeof(struct rtllib_network),
2237 GFP_ATOMIC);
94a79942
LF		 2238
2239 if (!network)
2240 return 1;
9d92ece8 2241 ieee->state = RTLLIB_LINKED;
94a79942
LF		 2242 ieee->assoc_id = aid;
2243 ieee->softmac_stats.rx_ass_ok++;
2244 /* station support qos */
9d92ece8
LF		 2245 /* Let the register setting default with Legacy station */
2246 assoc_resp = (struct rtllib_assoc_response_frame *)skb->data;
94a79942 2247 if (ieee->current_network.qos_data.supported == 1) {
9d92ece8
LF		 2248 if (rtllib_parse_info_param(ieee, assoc_resp->info_element,
2249 rx_stats->len - sizeof(*assoc_resp),
2250 network, rx_stats)) {
94a79942
LF		 2251 kfree(network);
2252 return 1;
94a79942 2253 }
92db2a27
MC		 2254 memcpy(ieee->pHTInfo->PeerHTCapBuf,
2255 network->bssht.bdHTCapBuf,
2256 network->bssht.bdHTCapLen);
2257 memcpy(ieee->pHTInfo->PeerHTInfoBuf,
2258 network->bssht.bdHTInfoBuf,
2259 network->bssht.bdHTInfoLen);
94a79942 2260 if (ieee->handle_assoc_response != NULL)
9d92ece8
LF		 2261 ieee->handle_assoc_response(ieee->dev,
2262 (struct rtllib_assoc_response_frame *)header,
2263 network);
94a79942 2264 }
33750343 2265 kfree(network);
94a79942 2266
9d92ece8
LF		 2267 kfree(ieee->assocresp_ies);
2268 ieee->assocresp_ies = NULL;
94a79942
LF		 2269 ies = &(assoc_resp->info_element[0].id);
2270 ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
9d92ece8
LF		 2271 ieee->assocresp_ies = kmalloc(ieee->assocresp_ies_len,
2272 GFP_ATOMIC);
94a79942 2273 if (ieee->assocresp_ies)
9d92ece8
LF		 2274 memcpy(ieee->assocresp_ies, ies,
2275 ieee->assocresp_ies_len);
2276 else {
d69d2054
MK		 2277 netdev_info(ieee->dev,
2278 "%s()Warning: can't alloc memory for assocresp_ies\n",
2279 __func__);
94a79942
LF		 2280 ieee->assocresp_ies_len = 0;
2281 }
2282 rtllib_associate_complete(ieee);
2283 } else {
2284 /* aid could not been allocated */
2285 ieee->softmac_stats.rx_ass_err++;
d69d2054
MK		 2286 netdev_info(ieee->dev,
2287 "Association response status code 0x%x\n",
2288 errcode);
9d92ece8 2289 if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT)
354605f4 2290 schedule_delayed_work(
9d92ece8
LF		 2291 &ieee->associate_procedure_wq, 0);
2292 else
94a79942 2293 rtllib_associate_abort(ieee);
94a79942
LF		 2294 }
2295 }
94a79942
LF		 2296 return 0;
2297}
2298
e8f05b0b 2299static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
94a79942
LF		 2300{
2301 u16 errcode;
9d92ece8
LF		 2302 u8 *challenge;
2303 int chlen = 0;
94a79942
LF		 2304 bool bSupportNmode = true, bHalfSupportNmode = false;
2305
e9fea2ec 2306 errcode = auth_parse(ieee->dev, skb, &challenge, &chlen);
94a79942 2307
f7567e20 2308 if (errcode) {
e8f05b0b 2309 ieee->softmac_stats.rx_auth_rs_err++;
e8f05b0b 2310 netdev_info(ieee->dev,
e725fb6f 2311 "Authentication respose status code 0x%x", errcode);
e8f05b0b 2312 rtllib_associate_abort(ieee);
f7567e20
MK		 2313 return;
2314 }
2315
2316 if (ieee->open_wep || !challenge) {
2317 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
2318 ieee->softmac_stats.rx_auth_rs_ok++;
e725fb6f 2319 if (!(ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE)) {
f7567e20
MK		 2320 if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
2321 if (IsHTHalfNmodeAPs(ieee)) {
2322 bSupportNmode = true;
2323 bHalfSupportNmode = true;
2324 } else {
2325 bSupportNmode = false;
2326 bHalfSupportNmode = false;
2327 }
2328 }
2329 }
14b40d92 2330 /* Dummy wirless mode setting to avoid encryption issue */
f7567e20
MK		 2331 if (bSupportNmode) {
2332 ieee->SetWirelessMode(ieee->dev,
e725fb6f 2333 ieee->current_network.mode);
f7567e20
MK		 2334 } else {
2335 /*TODO*/
e725fb6f 2336 ieee->SetWirelessMode(ieee->dev, IEEE_G);
f7567e20
MK		 2337 }
2338
e725fb6f
MK		 2339 if ((ieee->current_network.mode == IEEE_N_24G) &&
2340 bHalfSupportNmode) {
2341 netdev_info(ieee->dev, "======>enter half N mode\n");
2342 ieee->bHalfWirelessN24GMode = true;
2343 } else {
2344 ieee->bHalfWirelessN24GMode = false;
2345 }
f7567e20
MK		 2346 rtllib_associate_step2(ieee);
2347 } else {
e725fb6f 2348 rtllib_auth_challenge(ieee, challenge, chlen);
e8f05b0b
MK		 2349 }
2350}
94a79942 2351
ec65ef8e
BX		 2352static inline int
2353rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
2354 struct rtllib_rx_stats *rx_stats)
e8f05b0b
MK		 2355{
2356
2357 if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
2358 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
2359 (ieee->iw_mode == IW_MODE_INFRA)) {
e9fea2ec
MK		 2360 netdev_dbg(ieee->dev,
2361 "Received authentication response");
e8f05b0b 2362 rtllib_rx_auth_resp(ieee, skb);
9d92ece8 2363 } else if (ieee->iw_mode == IW_MODE_MASTER) {
94a79942
LF		 2364 rtllib_rx_auth_rq(ieee, skb);
2365 }
2366 }
94a79942
LF		 2367 return 0;
2368}
2369
ec65ef8e
BX		 2370static inline int
2371rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
94a79942
LF		 2372{
2373 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
fa70ae09 2374 u16 frame_ctl;
94a79942
LF		 2375
2376 if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
2377 return 0;
2378
2379 /* FIXME for now repeat all the association procedure
14b40d92
MK		 2380 * both for disassociation and deauthentication
2381 */
94a79942
LF		 2382 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2383 ieee->state == RTLLIB_LINKED &&
2384 (ieee->iw_mode == IW_MODE_INFRA)) {
fa70ae09 2385 frame_ctl = le16_to_cpu(header->frame_ctl);
d69d2054
MK		 2386 netdev_info(ieee->dev,
2387 "==========>received disassoc/deauth(%x) frame, reason code:%x\n",
fa70ae09 2388 WLAN_FC_GET_STYPE(frame_ctl),
d69d2054 2389 ((struct rtllib_disassoc *)skb->data)->reason);
94a79942
LF		 2390 ieee->state = RTLLIB_ASSOCIATING;
2391 ieee->softmac_stats.reassoc++;
2392 ieee->is_roaming = true;
2393 ieee->LinkDetectInfo.bBusyTraffic = false;
2394 rtllib_disassociate(ieee);
2395 RemovePeerTS(ieee, header->addr2);
2396 if (ieee->LedControlHandler != NULL)
9d92ece8
LF		 2397 ieee->LedControlHandler(ieee->dev,
2398 LED_CTL_START_TO_LINK);
94a79942 2399
9d92ece8
LF		 2400 if (!(ieee->rtllib_ap_sec_type(ieee) &
2401 (SEC_ALG_CCMP|SEC_ALG_TKIP)))
354605f4 2402 schedule_delayed_work(
9d92ece8 2403 &ieee->associate_procedure_wq, 5);
94a79942 2404 }
94a79942
LF		 2405 return 0;
2406}
2407
9d92ece8
LF		 2408inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
2409 struct sk_buff *skb,
2410 struct rtllib_rx_stats *rx_stats, u16 type,
2411 u16 stype)
94a79942
LF		 2412{
2413 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
fa70ae09 2414 u16 frame_ctl;
94a79942
LF		 2415
2416 if (!ieee->proto_started)
2417 return 0;
2418
fa70ae09
GD		 2419 frame_ctl = le16_to_cpu(header->frame_ctl);
2420 switch (WLAN_FC_GET_STYPE(frame_ctl)) {
9d92ece8
LF		 2421 case RTLLIB_STYPE_ASSOC_RESP:
2422 case RTLLIB_STYPE_REASSOC_RESP:
2423 if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
2424 return 1;
2425 break;
2426 case RTLLIB_STYPE_ASSOC_REQ:
2427 case RTLLIB_STYPE_REASSOC_REQ:
2428 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2429 ieee->iw_mode == IW_MODE_MASTER)
2430 rtllib_rx_assoc_rq(ieee, skb);
2431 break;
2432 case RTLLIB_STYPE_AUTH:
2433 rtllib_rx_auth(ieee, skb, rx_stats);
2434 break;
2435 case RTLLIB_STYPE_DISASSOC:
2436 case RTLLIB_STYPE_DEAUTH:
2437 rtllib_rx_deauth(ieee, skb);
2438 break;
2439 case RTLLIB_STYPE_MANAGE_ACT:
2440 rtllib_process_action(ieee, skb);
2441 break;
2442 default:
2443 return -1;
94a79942 2444 }
94a79942
LF		 2445 return 0;
2446}
2447
db2c8da0 2448/* following are for a simpler TX queue management.
94a79942 2449 * Instead of using netif_[stop/wake]_queue the driver
cd017123
JM		 2450 * will use these two functions (plus a reset one), that
2451 * will internally use the kernel netif_* and takes
94a79942
LF		 2452 * care of the ieee802.11 fragmentation.
2453 * So the driver receives a fragment per time and might
cd017123
JM		 2454 * call the stop function when it wants to not
2455 * have enough room to TX an entire packet.
2456 * This might be useful if each fragment needs it's own
94a79942 2457 * descriptor, thus just keep a total free memory > than
cd017123
JM		 2458 * the max fragmentation threshold is not enough.. If the
2459 * ieee802.11 stack passed a TXB struct then you need
94a79942
LF		 2460 * to keep N free descriptors where
2461 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
2462 * In this way you need just one and the 802.11 stack
2463 * will take care of buffering fragments and pass them to
2464 * to the driver later, when it wakes the queue.
2465 */
2466void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
2467{
2468
2469 unsigned int queue_index = txb->queue_index;
2470 unsigned long flags;
2471 int i;
3b83db43 2472 struct cb_desc *tcb_desc = NULL;
94a79942
LF		 2473 unsigned long queue_len = 0;
2474
9d92ece8 2475 spin_lock_irqsave(&ieee->lock, flags);
94a79942
LF		 2476
2477 /* called with 2nd parm 0, no tx mgmt lock required */
9d92ece8 2478 rtllib_sta_wakeup(ieee, 0);
94a79942
LF		 2479
2480 /* update the tx status */
9d92ece8
LF		 2481 tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb +
2482 MAX_DEV_ADDR_SIZE);
2483 if (tcb_desc->bMulticast)
94a79942 2484 ieee->stats.multicast++;
4f6807e8 2485
9d92ece8 2486 /* if xmit available, just xmit it immediately, else just insert it to
14b40d92
MK		 2487 * the wait queue
2488 */
94a79942 2489 for (i = 0; i < txb->nr_frags; i++) {
94a79942 2490 queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
e2ac0431 2491 if ((queue_len != 0) ||
9d92ece8
LF		 2492 (!ieee->check_nic_enough_desc(ieee->dev, queue_index)) ||
2493 (ieee->queue_stop)) {
14b40d92
MK		 2494 /* insert the skb packet to the wait queue
2495 * as for the completion function, it does not need
94a79942 2496 * to check it any more.
14b40d92 2497 */
94a79942 2498 if (queue_len < 200)
9d92ece8
LF		 2499 skb_queue_tail(&ieee->skb_waitQ[queue_index],
2500 txb->fragments[i]);
2501 else
94a79942 2502 kfree_skb(txb->fragments[i]);
9d92ece8 2503 } else {
94a79942
LF		 2504 ieee->softmac_data_hard_start_xmit(
2505 txb->fragments[i],
9d92ece8 2506 ieee->dev, ieee->rate);
94a79942
LF		 2507 }
2508 }
4f6807e8 2509
94a79942
LF		 2510 rtllib_txb_free(txb);
2511
9d92ece8 2512 spin_unlock_irqrestore(&ieee->lock, flags);
94a79942
LF		 2513
2514}
2515
94a79942
LF		 2516void rtllib_reset_queue(struct rtllib_device *ieee)
2517{
2518 unsigned long flags;
2519
9d92ece8 2520 spin_lock_irqsave(&ieee->lock, flags);
94a79942 2521 init_mgmt_queue(ieee);
9d92ece8 2522 if (ieee->tx_pending.txb) {
94a79942
LF		 2523 rtllib_txb_free(ieee->tx_pending.txb);
2524 ieee->tx_pending.txb = NULL;
2525 }
2526 ieee->queue_stop = 0;
9d92ece8 2527 spin_unlock_irqrestore(&ieee->lock, flags);
94a79942
LF		 2528
2529}
3b28499c 2530EXPORT_SYMBOL(rtllib_reset_queue);
94a79942 2531
94a79942
LF		 2532void rtllib_stop_all_queues(struct rtllib_device *ieee)
2533{
94a79942 2534 unsigned int i;
3a6b70c3 2535
9d92ece8
LF		 2536 for (i = 0; i < ieee->dev->num_tx_queues; i++)
2537 netdev_get_tx_queue(ieee->dev, i)->trans_start = jiffies;
94a79942 2538
94a79942 2539 netif_tx_stop_all_queues(ieee->dev);
94a79942
LF		 2540}
2541
2542void rtllib_wake_all_queues(struct rtllib_device *ieee)
2543{
94a79942 2544 netif_tx_wake_all_queues(ieee->dev);
94a79942
LF		 2545}
2546
94a79942 2547/* called in user context only */
6957248f 2548static void rtllib_start_master_bss(struct rtllib_device *ieee)
94a79942
LF		 2549{
2550 ieee->assoc_id = 1;
2551
9d92ece8 2552 if (ieee->current_network.ssid_len == 0) {
94a79942
LF		 2553 strncpy(ieee->current_network.ssid,
2554 RTLLIB_DEFAULT_TX_ESSID,
2555 IW_ESSID_MAX_SIZE);
2556
9d92ece8
LF		 2557 ieee->current_network.ssid_len =
2558 strlen(RTLLIB_DEFAULT_TX_ESSID);
94a79942
LF		 2559 ieee->ssid_set = 1;
2560 }
2561
b57ceb19 2562 ether_addr_copy(ieee->current_network.bssid, ieee->dev->dev_addr);
94a79942
LF		 2563
2564 ieee->set_chan(ieee->dev, ieee->current_network.channel);
2565 ieee->state = RTLLIB_LINKED;
2566 ieee->link_change(ieee->dev);
2567 notify_wx_assoc_event(ieee);
2568
2569 if (ieee->data_hard_resume)
2570 ieee->data_hard_resume(ieee->dev);
2571
2572 netif_carrier_on(ieee->dev);
2573}
2574
ec0dc6be 2575static void rtllib_start_monitor_mode(struct rtllib_device *ieee)
94a79942
LF		 2576{
2577 /* reset hardware status */
9d92ece8 2578 if (ieee->raw_tx) {
94a79942
LF		 2579 if (ieee->data_hard_resume)
2580 ieee->data_hard_resume(ieee->dev);
2581
2582 netif_carrier_on(ieee->dev);
2583 }
2584}
2585
ec0dc6be 2586static void rtllib_start_ibss_wq(void *data)
94a79942 2587{
9d92ece8
LF		 2588 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2589 struct rtllib_device, start_ibss_wq);
94a79942
LF		 2590 /* iwconfig mode ad-hoc will schedule this and return
2591 * on the other hand this will block further iwconfig SET
9afa9370 2592 * operations because of the wx_mutex hold.
94a79942
LF		 2593 * Anyway some most set operations set a flag to speed-up
2594 * (abort) this wq (when syncro scanning) before sleeping
9afa9370 2595 * on the mutex
94a79942 2596 */
9d92ece8 2597 if (!ieee->proto_started) {
d69d2054 2598 netdev_info(ieee->dev, "==========oh driver down return\n");
94a79942
LF		 2599 return;
2600 }
9afa9370 2601 mutex_lock(&ieee->wx_mutex);
94a79942 2602
9d92ece8
LF		 2603 if (ieee->current_network.ssid_len == 0) {
2604 strcpy(ieee->current_network.ssid, RTLLIB_DEFAULT_TX_ESSID);
94a79942
LF		 2605 ieee->current_network.ssid_len = strlen(RTLLIB_DEFAULT_TX_ESSID);
2606 ieee->ssid_set = 1;
2607 }
2608
2609 ieee->state = RTLLIB_NOLINK;
94a79942 2610 ieee->mode = IEEE_G;
94a79942
LF		 2611 /* check if we have this cell in our network list */
2612 rtllib_softmac_check_all_nets(ieee);
2613
2614
cd017123 2615 /* if not then the state is not linked. Maybe the user switched to
94a79942
LF		 2616 * ad-hoc mode just after being in monitor mode, or just after
2617 * being very few time in managed mode (so the card have had no
2618 * time to scan all the chans..) or we have just run up the iface
2619 * after setting ad-hoc mode. So we have to give another try..
2620 * Here, in ibss mode, should be safe to do this without extra care
cd017123 2621 * (in bss mode we had to make sure no-one tried to associate when
94a79942 2622 * we had just checked the ieee->state and we was going to start the
cd017123 2623 * scan) because in ibss mode the rtllib_new_net function, when
94a79942
LF		 2624 * finds a good net, just set the ieee->state to RTLLIB_LINKED,
2625 * so, at worst, we waste a bit of time to initiate an unneeded syncro
2626 * scan, that will stop at the first round because it sees the state
2627 * associated.
2628 */
2629 if (ieee->state == RTLLIB_NOLINK)
2630 rtllib_start_scan_syncro(ieee, 0);
2631
2632 /* the network definitively is not here.. create a new cell */
9d92ece8 2633 if (ieee->state == RTLLIB_NOLINK) {
d69d2054 2634 netdev_info(ieee->dev, "creating new IBSS cell\n");
94a79942
LF		 2635 ieee->current_network.channel = ieee->IbssStartChnl;
2636 if (!ieee->wap_set)
37241977 2637 eth_random_addr(ieee->current_network.bssid);
94a79942 2638
9d92ece8 2639 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
94a79942
LF		 2640
2641 ieee->current_network.rates_len = 4;
2642
9d92ece8
LF		 2643 ieee->current_network.rates[0] =
2644 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
2645 ieee->current_network.rates[1] =
2646 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
2647 ieee->current_network.rates[2] =
2648 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
2649 ieee->current_network.rates[3] =
2650 RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
94a79942 2651
9d92ece8 2652 } else
94a79942
LF		 2653 ieee->current_network.rates_len = 0;
2654
9d92ece8 2655 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
94a79942
LF		 2656 ieee->current_network.rates_ex_len = 8;
2657
9d92ece8
LF		 2658 ieee->current_network.rates_ex[0] =
2659 RTLLIB_OFDM_RATE_6MB;
2660 ieee->current_network.rates_ex[1] =
2661 RTLLIB_OFDM_RATE_9MB;
2662 ieee->current_network.rates_ex[2] =
2663 RTLLIB_OFDM_RATE_12MB;
2664 ieee->current_network.rates_ex[3] =
2665 RTLLIB_OFDM_RATE_18MB;
2666 ieee->current_network.rates_ex[4] =
2667 RTLLIB_OFDM_RATE_24MB;
2668 ieee->current_network.rates_ex[5] =
2669 RTLLIB_OFDM_RATE_36MB;
2670 ieee->current_network.rates_ex[6] =
2671 RTLLIB_OFDM_RATE_48MB;
2672 ieee->current_network.rates_ex[7] =
2673 RTLLIB_OFDM_RATE_54MB;
94a79942
LF		 2674
2675 ieee->rate = 108;
9d92ece8 2676 } else {
94a79942
LF		 2677 ieee->current_network.rates_ex_len = 0;
2678 ieee->rate = 22;
2679 }
2680
94a79942
LF		 2681 ieee->current_network.qos_data.supported = 0;
2682 ieee->SetWirelessMode(ieee->dev, IEEE_G);
94a79942
LF		 2683 ieee->current_network.mode = ieee->mode;
2684 ieee->current_network.atim_window = 0;
2685 ieee->current_network.capability = WLAN_CAPABILITY_IBSS;
2686 }
2687
d69d2054 2688 netdev_info(ieee->dev, "%s(): ieee->mode = %d\n", __func__, ieee->mode);
94a79942
LF		 2689 if ((ieee->mode == IEEE_N_24G) || (ieee->mode == IEEE_N_5G))
2690 HTUseDefaultSetting(ieee);
2691 else
2692 ieee->pHTInfo->bCurrentHTSupport = false;
2693
9d92ece8
LF		 2694 ieee->SetHwRegHandler(ieee->dev, HW_VAR_MEDIA_STATUS,
2695 (u8 *)(&ieee->state));
94a79942
LF		 2696
2697 ieee->state = RTLLIB_LINKED;
2698 ieee->link_change(ieee->dev);
2699
2700 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
2701 if (ieee->LedControlHandler != NULL)
9d92ece8 2702 ieee->LedControlHandler(ieee->dev, LED_CTL_LINK);
94a79942
LF		 2703
2704 rtllib_start_send_beacons(ieee);
2705
2706 notify_wx_assoc_event(ieee);
2707
2708 if (ieee->data_hard_resume)
2709 ieee->data_hard_resume(ieee->dev);
2710
2711 netif_carrier_on(ieee->dev);
2712
9afa9370 2713 mutex_unlock(&ieee->wx_mutex);
94a79942
LF		 2714}
2715
2716inline void rtllib_start_ibss(struct rtllib_device *ieee)
2717{
354605f4 2718 schedule_delayed_work(&ieee->start_ibss_wq, msecs_to_jiffies(150));
94a79942
LF		 2719}
2720
9afa9370 2721/* this is called only in user context, with wx_mutex held */
6957248f 2722static void rtllib_start_bss(struct rtllib_device *ieee)
94a79942
LF		 2723{
2724 unsigned long flags;
3a6b70c3 2725
9d92ece8
LF		 2726 if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) {
2727 if (!ieee->bGlobalDomain)
94a79942 2728 return;
94a79942 2729 }
94a79942
LF		 2730 /* check if we have already found the net we
2731 * are interested in (if any).
2732 * if not (we are disassociated and we are not
2733 * in associating / authenticating phase) start the background scanning.
2734 */
2735 rtllib_softmac_check_all_nets(ieee);
2736
2737 /* ensure no-one start an associating process (thus setting
2738 * the ieee->state to rtllib_ASSOCIATING) while we
cd017123 2739 * have just checked it and we are going to enable scan.
94a79942
LF		 2740 * The rtllib_new_net function is always called with
2741 * lock held (from both rtllib_softmac_check_all_nets and
2742 * the rx path), so we cannot be in the middle of such function
2743 */
2744 spin_lock_irqsave(&ieee->lock, flags);
2745
9d92ece8 2746 if (ieee->state == RTLLIB_NOLINK)
94a79942 2747 rtllib_start_scan(ieee);
94a79942
LF		 2748 spin_unlock_irqrestore(&ieee->lock, flags);
2749}
2750
ec0dc6be 2751static void rtllib_link_change_wq(void *data)
94a79942 2752{
9d92ece8
LF		 2753 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2754 struct rtllib_device, link_change_wq);
94a79942
LF		 2755 ieee->link_change(ieee->dev);
2756}
2757/* called only in userspace context */
2758void rtllib_disassociate(struct rtllib_device *ieee)
2759{
2760 netif_carrier_off(ieee->dev);
2761 if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
fc00af0c 2762 rtllib_reset_queue(ieee);
94a79942
LF		 2763
2764 if (ieee->data_hard_stop)
fc00af0c 2765 ieee->data_hard_stop(ieee->dev);
94a79942
LF		 2766 if (IS_DOT11D_ENABLE(ieee))
2767 Dot11d_Reset(ieee);
94a79942
LF		 2768 ieee->state = RTLLIB_NOLINK;
2769 ieee->is_set_key = false;
2770 ieee->wap_set = 0;
2771
354605f4 2772 schedule_delayed_work(&ieee->link_change_wq, 0);
94a79942 2773
94a79942 2774 notify_wx_assoc_event(ieee);
94a79942
LF		 2775}
2776
ec0dc6be 2777static void rtllib_associate_retry_wq(void *data)
94a79942 2778{
9d92ece8
LF		 2779 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2780 struct rtllib_device, associate_retry_wq);
94a79942
LF		 2781 unsigned long flags;
2782
9afa9370 2783 mutex_lock(&ieee->wx_mutex);
94a79942
LF		 2784 if (!ieee->proto_started)
2785 goto exit;
2786
2787 if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
2788 goto exit;
2789
2790 /* until we do not set the state to RTLLIB_NOLINK
14b40d92
MK		 2791 * there are no possibility to have someone else trying
2792 * to start an association procedure (we get here with
2793 * ieee->state = RTLLIB_ASSOCIATING).
2794 * When we set the state to RTLLIB_NOLINK it is possible
2795 * that the RX path run an attempt to associate, but
2796 * both rtllib_softmac_check_all_nets and the
2797 * RX path works with ieee->lock held so there are no
2798 * problems. If we are still disassociated then start a scan.
2799 * the lock here is necessary to ensure no one try to start
2800 * an association procedure when we have just checked the
2801 * state and we are going to start the scan.
2802 */
94a79942
LF		 2803 ieee->beinretry = true;
2804 ieee->state = RTLLIB_NOLINK;
2805
2806 rtllib_softmac_check_all_nets(ieee);
2807
2808 spin_lock_irqsave(&ieee->lock, flags);
2809
2810 if (ieee->state == RTLLIB_NOLINK)
94a79942 2811 rtllib_start_scan(ieee);
94a79942
LF		 2812 spin_unlock_irqrestore(&ieee->lock, flags);
2813
2814 ieee->beinretry = false;
2815exit:
9afa9370 2816 mutex_unlock(&ieee->wx_mutex);
94a79942
LF		 2817}
2818
6957248f 2819static struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
94a79942 2820{
06c11107 2821 const u8 broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
94a79942
LF		 2822
2823 struct sk_buff *skb;
2824 struct rtllib_probe_response *b;
3a6b70c3 2825
94a79942
LF		 2826 skb = rtllib_probe_resp(ieee, broadcast_addr);
2827
2828 if (!skb)
2829 return NULL;
2830
2831 b = (struct rtllib_probe_response *) skb->data;
2832 b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);
2833
2834 return skb;
2835
2836}
2837
2838struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
2839{
2840 struct sk_buff *skb;
2841 struct rtllib_probe_response *b;
2842
2843 skb = rtllib_get_beacon_(ieee);
2844 if (!skb)
2845 return NULL;
2846
2847 b = (struct rtllib_probe_response *) skb->data;
2848 b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2849
2850 if (ieee->seq_ctrl[0] == 0xFFF)
2851 ieee->seq_ctrl[0] = 0;
2852 else
2853 ieee->seq_ctrl[0]++;
2854
2855 return skb;
2856}
3b28499c 2857EXPORT_SYMBOL(rtllib_get_beacon);
94a79942 2858
9d92ece8
LF		 2859void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
2860 u8 shutdown)
94a79942
LF		 2861{
2862 rtllib_stop_scan_syncro(ieee);
9afa9370 2863 mutex_lock(&ieee->wx_mutex);
9d92ece8 2864 rtllib_stop_protocol(ieee, shutdown);
9afa9370 2865 mutex_unlock(&ieee->wx_mutex);
94a79942 2866}
3b28499c 2867EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
94a79942
LF		 2868
2869
2870void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
2871{
2872 if (!ieee->proto_started)
2873 return;
2874
9d92ece8
LF		 2875 if (shutdown) {
2876 ieee->proto_started = 0;
94a79942
LF		 2877 ieee->proto_stoppping = 1;
2878 if (ieee->rtllib_ips_leave != NULL)
2879 ieee->rtllib_ips_leave(ieee->dev);
2880 }
2881
2882 rtllib_stop_send_beacons(ieee);
2883 del_timer_sync(&ieee->associate_timer);
354605f4
AKC		 2884 cancel_delayed_work_sync(&ieee->associate_retry_wq);
2885 cancel_delayed_work_sync(&ieee->start_ibss_wq);
2886 cancel_delayed_work_sync(&ieee->link_change_wq);
94a79942
LF		 2887 rtllib_stop_scan(ieee);
2888
2889 if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
2890 ieee->state = RTLLIB_NOLINK;
2891
9d92ece8 2892 if (ieee->state == RTLLIB_LINKED) {
94a79942 2893 if (ieee->iw_mode == IW_MODE_INFRA)
acd442db 2894 SendDisassociation(ieee, 1, WLAN_REASON_DEAUTH_LEAVING);
94a79942
LF		 2895 rtllib_disassociate(ieee);
2896 }
2897
9d92ece8 2898 if (shutdown) {
94a79942
LF		 2899 RemoveAllTS(ieee);
2900 ieee->proto_stoppping = 0;
2901 }
9d92ece8
LF		 2902 kfree(ieee->assocreq_ies);
2903 ieee->assocreq_ies = NULL;
2904 ieee->assocreq_ies_len = 0;
2905 kfree(ieee->assocresp_ies);
2906 ieee->assocresp_ies = NULL;
2907 ieee->assocresp_ies_len = 0;
94a79942
LF		 2908}
2909
2910void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
2911{
9afa9370 2912 mutex_lock(&ieee->wx_mutex);
94a79942 2913 rtllib_start_protocol(ieee);
9afa9370 2914 mutex_unlock(&ieee->wx_mutex);
94a79942 2915}
3b28499c 2916EXPORT_SYMBOL(rtllib_softmac_start_protocol);
94a79942
LF		 2917
2918void rtllib_start_protocol(struct rtllib_device *ieee)
2919{
2920 short ch = 0;
2921 int i = 0;
2922
2923 rtllib_update_active_chan_map(ieee);
2924
2925 if (ieee->proto_started)
2926 return;
2927
2928 ieee->proto_started = 1;
2929
2930 if (ieee->current_network.channel == 0) {
2931 do {
2932 ch++;
2933 if (ch > MAX_CHANNEL_NUMBER)
2934 return; /* no channel found */
9d92ece8 2935 } while (!ieee->active_channel_map[ch]);
94a79942
LF		 2936 ieee->current_network.channel = ch;
2937 }
2938
2939 if (ieee->current_network.beacon_interval == 0)
2940 ieee->current_network.beacon_interval = 100;
2941
2942 for (i = 0; i < 17; i++) {
2943 ieee->last_rxseq_num[i] = -1;
2944 ieee->last_rxfrag_num[i] = -1;
2945 ieee->last_packet_time[i] = 0;
2946 }
2947
2948 if (ieee->UpdateBeaconInterruptHandler)
2949 ieee->UpdateBeaconInterruptHandler(ieee->dev, false);
2950
2951 ieee->wmm_acm = 0;
2952 /* if the user set the MAC of the ad-hoc cell and then
2953 * switch to managed mode, shall we make sure that association
2954 * attempts does not fail just because the user provide the essid
2955 * and the nic is still checking for the AP MAC ??
2956 */
2957 if (ieee->iw_mode == IW_MODE_INFRA) {
2958 rtllib_start_bss(ieee);
2959 } else if (ieee->iw_mode == IW_MODE_ADHOC) {
2960 if (ieee->UpdateBeaconInterruptHandler)
2961 ieee->UpdateBeaconInterruptHandler(ieee->dev, true);
2962
2963 rtllib_start_ibss(ieee);
2964
2965 } else if (ieee->iw_mode == IW_MODE_MASTER) {
2966 rtllib_start_master_bss(ieee);
2967 } else if (ieee->iw_mode == IW_MODE_MONITOR) {
2968 rtllib_start_monitor_mode(ieee);
2969 }
2970}
2971
2972void rtllib_softmac_init(struct rtllib_device *ieee)
2973{
2974 int i;
3a6b70c3 2975
94a79942
LF		 2976 memset(&ieee->current_network, 0, sizeof(struct rtllib_network));
2977
2978 ieee->state = RTLLIB_NOLINK;
9d92ece8
LF		 2979 for (i = 0; i < 5; i++)
2980 ieee->seq_ctrl[i] = 0;
929fa2a4 2981 ieee->pDot11dInfo = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
94a79942 2982 if (!ieee->pDot11dInfo)
11e672c3 2983 netdev_err(ieee->dev, "Can't alloc memory for DOT11D\n");
94a79942
LF		 2984 ieee->LinkDetectInfo.SlotIndex = 0;
2985 ieee->LinkDetectInfo.SlotNum = 2;
9d92ece8
LF		 2986 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
2987 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
2988 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
2989 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
2990 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
94a79942
LF		 2991 ieee->bIsAggregateFrame = false;
2992 ieee->assoc_id = 0;
2993 ieee->queue_stop = 0;
2994 ieee->scanning_continue = 0;
2995 ieee->softmac_features = 0;
2996 ieee->wap_set = 0;
2997 ieee->ssid_set = 0;
2998 ieee->proto_started = 0;
2999 ieee->proto_stoppping = 0;
3000 ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
3001 ieee->rate = 22;
3002 ieee->ps = RTLLIB_PS_DISABLED;
3003 ieee->sta_sleep = LPS_IS_WAKE;
3004
9d92ece8
LF		 3005 ieee->Regdot11HTOperationalRateSet[0] = 0xff;
3006 ieee->Regdot11HTOperationalRateSet[1] = 0xff;
3007 ieee->Regdot11HTOperationalRateSet[4] = 0x01;
94a79942 3008
9d92ece8
LF		 3009 ieee->Regdot11TxHTOperationalRateSet[0] = 0xff;
3010 ieee->Regdot11TxHTOperationalRateSet[1] = 0xff;
3011 ieee->Regdot11TxHTOperationalRateSet[4] = 0x01;
94a79942
LF		 3012
3013 ieee->FirstIe_InScan = false;
3014 ieee->actscanning = false;
3015 ieee->beinretry = false;
3016 ieee->is_set_key = false;
3017 init_mgmt_queue(ieee);
3018
94a79942
LF		 3019 ieee->tx_pending.txb = NULL;
3020
2e59e40d 3021 setup_timer(&ieee->associate_timer,
94a79942
LF		 3022 rtllib_associate_abort_cb,
3023 (unsigned long) ieee);
3024
2e59e40d 3025 setup_timer(&ieee->beacon_timer,
94a79942
LF		 3026 rtllib_send_beacon_cb,
3027 (unsigned long) ieee);
3028
9d92ece8
LF		 3029 INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
3030 (void *)rtllib_link_change_wq, ieee);
3031 INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,
3032 (void *)rtllib_start_ibss_wq, ieee);
3033 INIT_WORK_RSL(&ieee->associate_complete_wq,
3034 (void *)rtllib_associate_complete_wq, ieee);
3035 INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq,
3036 (void *)rtllib_associate_procedure_wq, ieee);
3037 INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,
3038 (void *)rtllib_softmac_scan_wq, ieee);
9d92ece8
LF		 3039 INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq,
3040 (void *)rtllib_associate_retry_wq, ieee);
3041 INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
3042 ieee);
94a79942 3043
9afa9370 3044 mutex_init(&ieee->wx_mutex);
be10ceea 3045 mutex_init(&ieee->scan_mutex);
38bee763 3046 mutex_init(&ieee->ips_mutex);
94a79942
LF		 3047
3048 spin_lock_init(&ieee->mgmt_tx_lock);
3049 spin_lock_init(&ieee->beacon_lock);
3050
3051 tasklet_init(&ieee->ps_task,
3052 (void(*)(unsigned long)) rtllib_sta_ps,
3053 (unsigned long)ieee);
3054
3055}
3056
3057void rtllib_softmac_free(struct rtllib_device *ieee)
3058{
9afa9370 3059 mutex_lock(&ieee->wx_mutex);
d7613e53
LF		 3060 kfree(ieee->pDot11dInfo);
3061 ieee->pDot11dInfo = NULL;
94a79942
LF		 3062 del_timer_sync(&ieee->associate_timer);
3063
354605f4
AKC		 3064 cancel_delayed_work_sync(&ieee->associate_retry_wq);
3065 cancel_delayed_work_sync(&ieee->associate_procedure_wq);
3066 cancel_delayed_work_sync(&ieee->softmac_scan_wq);
3067 cancel_delayed_work_sync(&ieee->start_ibss_wq);
3068 cancel_delayed_work_sync(&ieee->hw_wakeup_wq);
3069 cancel_delayed_work_sync(&ieee->hw_sleep_wq);
3070 cancel_delayed_work_sync(&ieee->link_change_wq);
3071 cancel_work_sync(&ieee->associate_complete_wq);
3072 cancel_work_sync(&ieee->ips_leave_wq);
3073 cancel_work_sync(&ieee->wx_sync_scan_wq);
9afa9370 3074 mutex_unlock(&ieee->wx_mutex);
876e20d3 3075 tasklet_kill(&ieee->ps_task);
94a79942
LF		 3076}
3077
3078/********************************************************
9d92ece8
LF		 3079 * Start of WPA code. *
3080 * this is stolen from the ipw2200 driver *
94a79942
LF		 3081 ********************************************************/
3082
3083
3084static int rtllib_wpa_enable(struct rtllib_device *ieee, int value)
3085{
3086 /* This is called when wpa_supplicant loads and closes the driver
14b40d92
MK		 3087 * interface.
3088 */
d69d2054 3089 netdev_info(ieee->dev, "%s WPA\n", value ? "enabling" : "disabling");
94a79942 3090 ieee->wpa_enabled = value;
3e3148c5 3091 eth_zero_addr(ieee->ap_mac_addr);
94a79942
LF		 3092 return 0;
3093}
3094
3095
ec0dc6be
LF		 3096static void rtllib_wpa_assoc_frame(struct rtllib_device *ieee, char *wpa_ie,
3097 int wpa_ie_len)
94a79942
LF		 3098{
3099 /* make sure WPA is enabled */
3100 rtllib_wpa_enable(ieee, 1);
3101
3102 rtllib_disassociate(ieee);
3103}
3104
3105
3106static int rtllib_wpa_mlme(struct rtllib_device *ieee, int command, int reason)
3107{
3108
3109 int ret = 0;
3110
3111 switch (command) {
3112 case IEEE_MLME_STA_DEAUTH:
3113 break;
3114
3115 case IEEE_MLME_STA_DISASSOC:
3116 rtllib_disassociate(ieee);
3117 break;
3118
3119 default:
d69d2054 3120 netdev_info(ieee->dev, "Unknown MLME request: %d\n", command);
94a79942
LF		 3121 ret = -EOPNOTSUPP;
3122 }
3123
3124 return ret;
3125}
3126
3127
3128static int rtllib_wpa_set_wpa_ie(struct rtllib_device *ieee,
3129 struct ieee_param *param, int plen)
3130{
3131 u8 *buf;
3132
3133 if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
3134 (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
3135 return -EINVAL;
3136
3137 if (param->u.wpa_ie.len) {
d9317533
TM		 3138 buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
3139 GFP_KERNEL);
94a79942
LF		 3140 if (buf == NULL)
3141 return -ENOMEM;
3142
94a79942
LF		 3143 kfree(ieee->wpa_ie);
3144 ieee->wpa_ie = buf;
3145 ieee->wpa_ie_len = param->u.wpa_ie.len;
3146 } else {
3147 kfree(ieee->wpa_ie);
3148 ieee->wpa_ie = NULL;
3149 ieee->wpa_ie_len = 0;
3150 }
3151
3152 rtllib_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
3153 return 0;
3154}
3155
3156#define AUTH_ALG_OPEN_SYSTEM 0x1
3157#define AUTH_ALG_SHARED_KEY 0x2
3158#define AUTH_ALG_LEAP 0x4
3159static int rtllib_wpa_set_auth_algs(struct rtllib_device *ieee, int value)
3160{
3161
3162 struct rtllib_security sec = {
3163 .flags = SEC_AUTH_MODE,
3164 };
94a79942
LF		 3165
3166 if (value & AUTH_ALG_SHARED_KEY) {
3167 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
3168 ieee->open_wep = 0;
3169 ieee->auth_mode = 1;
9d92ece8 3170 } else if (value & AUTH_ALG_OPEN_SYSTEM) {
94a79942
LF		 3171 sec.auth_mode = WLAN_AUTH_OPEN;
3172 ieee->open_wep = 1;
3173 ieee->auth_mode = 0;
9d92ece8 3174 } else if (value & AUTH_ALG_LEAP) {
94a79942
LF		 3175 sec.auth_mode = WLAN_AUTH_LEAP >> 6;
3176 ieee->open_wep = 1;
3177 ieee->auth_mode = 2;
3178 }
3179
3180
3181 if (ieee->set_security)
3182 ieee->set_security(ieee->dev, &sec);
3183
4764ca98 3184 return 0;
94a79942
LF		 3185}
3186
3187static int rtllib_wpa_set_param(struct rtllib_device *ieee, u8 name, u32 value)
3188{
9d92ece8 3189 int ret = 0;
94a79942
LF		 3190 unsigned long flags;
3191
3192 switch (name) {
3193 case IEEE_PARAM_WPA_ENABLED:
3194 ret = rtllib_wpa_enable(ieee, value);
3195 break;
3196
3197 case IEEE_PARAM_TKIP_COUNTERMEASURES:
9d92ece8 3198 ieee->tkip_countermeasures = value;
94a79942
LF		 3199 break;
3200
9d92ece8
LF		 3201 case IEEE_PARAM_DROP_UNENCRYPTED:
3202 {
94a79942
LF		 3203 /* HACK:
3204 *
3205 * wpa_supplicant calls set_wpa_enabled when the driver
3206 * is loaded and unloaded, regardless of if WPA is being
3207 * used. No other calls are made which can be used to
3208 * determine if encryption will be used or not prior to
3209 * association being expected. If encryption is not being
3210 * used, drop_unencrypted is set to false, else true -- we
3211 * can use this to determine if the CAP_PRIVACY_ON bit should
3212 * be set.
3213 */
3214 struct rtllib_security sec = {
3215 .flags = SEC_ENABLED,
3216 .enabled = value,
3217 };
3218 ieee->drop_unencrypted = value;
3219 /* We only change SEC_LEVEL for open mode. Others
3220 * are set by ipw_wpa_set_encryption.
3221 */
3222 if (!value) {
3223 sec.flags |= SEC_LEVEL;
3224 sec.level = SEC_LEVEL_0;
9d92ece8 3225 } else {
94a79942
LF		 3226 sec.flags |= SEC_LEVEL;
3227 sec.level = SEC_LEVEL_1;
3228 }
3229 if (ieee->set_security)
3230 ieee->set_security(ieee->dev, &sec);
3231 break;
3232 }
3233
3234 case IEEE_PARAM_PRIVACY_INVOKED:
9d92ece8 3235 ieee->privacy_invoked = value;
94a79942
LF		 3236 break;
3237
3238 case IEEE_PARAM_AUTH_ALGS:
3239 ret = rtllib_wpa_set_auth_algs(ieee, value);
3240 break;
3241
3242 case IEEE_PARAM_IEEE_802_1X:
9d92ece8 3243 ieee->ieee802_1x = value;
94a79942
LF		 3244 break;
3245 case IEEE_PARAM_WPAX_SELECT:
9d92ece8
LF		 3246 spin_lock_irqsave(&ieee->wpax_suitlist_lock, flags);
3247 spin_unlock_irqrestore(&ieee->wpax_suitlist_lock, flags);
94a79942
LF		 3248 break;
3249
3250 default:
d69d2054 3251 netdev_info(ieee->dev, "Unknown WPA param: %d\n", name);
94a79942
LF		 3252 ret = -EOPNOTSUPP;
3253 }
3254
3255 return ret;
3256}
3257
3258/* implementation borrowed from hostap driver */
3259static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
9d92ece8
LF		 3260 struct ieee_param *param, int param_len,
3261 u8 is_mesh)
94a79942
LF		 3262{
3263 int ret = 0;
32c44cb5
SM		 3264 struct lib80211_crypto_ops *ops;
3265 struct lib80211_crypt_data **crypt;
94a79942
LF		 3266
3267 struct rtllib_security sec = {
3268 .flags = 0,
3269 };
3270
3271 param->u.crypt.err = 0;
3272 param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
3273
3274 if (param_len !=
3275 (int) ((char *) param->u.crypt.key - (char *) param) +
3276 param->u.crypt.key_len) {
d69d2054
MK		 3277 netdev_info(ieee->dev, "Len mismatch %d, %d\n", param_len,
3278 param->u.crypt.key_len);
94a79942
LF		 3279 return -EINVAL;
3280 }
0c43e56c 3281 if (is_broadcast_ether_addr(param->sta_addr)) {
184f1938 3282 if (param->u.crypt.idx >= NUM_WEP_KEYS)
94a79942 3283 return -EINVAL;
0ddcf5fd 3284 crypt = &ieee->crypt_info.crypt[param->u.crypt.idx];
94a79942
LF		 3285 } else {
3286 return -EINVAL;
3287 }
3288
3289 if (strcmp(param->u.crypt.alg, "none") == 0) {
3290 if (crypt) {
3291 sec.enabled = 0;
3292 sec.level = SEC_LEVEL_0;
3293 sec.flags |= SEC_ENABLED | SEC_LEVEL;
3b148be0 3294 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
94a79942
LF		 3295 }
3296 goto done;
3297 }
3298 sec.enabled = 1;
3299 sec.flags |= SEC_ENABLED;
3300
3301 /* IPW HW cannot build TKIP MIC, host decryption still needed. */
3302 if (!(ieee->host_encrypt || ieee->host_decrypt) &&
3b148be0 3303 strcmp(param->u.crypt.alg, "R-TKIP"))
94a79942
LF		 3304 goto skip_host_crypt;
3305
3b148be0
SM		 3306 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3307 if (ops == NULL && strcmp(param->u.crypt.alg, "R-WEP") == 0) {
94a79942 3308 request_module("rtllib_crypt_wep");
3b148be0
SM		 3309 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3310 } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
94a79942 3311 request_module("rtllib_crypt_tkip");
3b148be0
SM		 3312 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3313 } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
94a79942 3314 request_module("rtllib_crypt_ccmp");
3b148be0 3315 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
94a79942
LF		 3316 }
3317 if (ops == NULL) {
d69d2054
MK		 3318 netdev_info(ieee->dev, "unknown crypto alg '%s'\n",
3319 param->u.crypt.alg);
94a79942
LF		 3320 param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
3321 ret = -EINVAL;
3322 goto done;
3323 }
3324 if (*crypt == NULL || (*crypt)->ops != ops) {
32c44cb5 3325 struct lib80211_crypt_data *new_crypt;
94a79942 3326
3b148be0 3327 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
94a79942 3328
d272f9dd 3329 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
94a79942
LF		 3330 if (new_crypt == NULL) {
3331 ret = -ENOMEM;
3332 goto done;
3333 }
94a79942 3334 new_crypt->ops = ops;
0bd35534 3335 if (new_crypt->ops && try_module_get(new_crypt->ops->owner))
94a79942
LF		 3336 new_crypt->priv =
3337 new_crypt->ops->init(param->u.crypt.idx);
3338
3339 if (new_crypt->priv == NULL) {
3340 kfree(new_crypt);
3341 param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
3342 ret = -EINVAL;
3343 goto done;
3344 }
3345
3346 *crypt = new_crypt;
3347 }
3348
3349 if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
3350 (*crypt)->ops->set_key(param->u.crypt.key,
3351 param->u.crypt.key_len, param->u.crypt.seq,
3352 (*crypt)->priv) < 0) {
d69d2054 3353 netdev_info(ieee->dev, "key setting failed\n");
94a79942
LF		 3354 param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
3355 ret = -EINVAL;
3356 goto done;
3357 }
3358
3359 skip_host_crypt:
3360 if (param->u.crypt.set_tx) {
0ddcf5fd 3361 ieee->crypt_info.tx_keyidx = param->u.crypt.idx;
94a79942
LF		 3362 sec.active_key = param->u.crypt.idx;
3363 sec.flags |= SEC_ACTIVE_KEY;
3364 } else
3365 sec.flags &= ~SEC_ACTIVE_KEY;
3366
3367 if (param->u.crypt.alg != NULL) {
3368 memcpy(sec.keys[param->u.crypt.idx],
3369 param->u.crypt.key,
3370 param->u.crypt.key_len);
3371 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
3372 sec.flags |= (1 << param->u.crypt.idx);
3373
3b148be0 3374 if (strcmp(param->u.crypt.alg, "R-WEP") == 0) {
94a79942
LF		 3375 sec.flags |= SEC_LEVEL;
3376 sec.level = SEC_LEVEL_1;
3b148be0 3377 } else if (strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
94a79942
LF		 3378 sec.flags |= SEC_LEVEL;
3379 sec.level = SEC_LEVEL_2;
3b148be0 3380 } else if (strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
94a79942
LF		 3381 sec.flags |= SEC_LEVEL;
3382 sec.level = SEC_LEVEL_3;
3383 }
3384 }
3385 done:
3386 if (ieee->set_security)
3387 ieee->set_security(ieee->dev, &sec);
3388
3389 /* Do not reset port if card is in Managed mode since resetting will
3390 * generate new IEEE 802.11 authentication which may end up in looping
3391 * with IEEE 802.1X. If your hardware requires a reset after WEP
3392 * configuration (for example... Prism2), implement the reset_port in
14b40d92
MK		 3393 * the callbacks structures used to initialize the 802.11 stack.
3394 */
94a79942
LF		 3395 if (ieee->reset_on_keychange &&
3396 ieee->iw_mode != IW_MODE_INFRA &&
3397 ieee->reset_port &&
3398 ieee->reset_port(ieee->dev)) {
d69d2054 3399 netdev_info(ieee->dev, "reset_port failed\n");
94a79942
LF		 3400 param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
3401 return -EINVAL;
3402 }
3403
3404 return ret;
3405}
3406
ec65ef8e
BX		 3407static inline struct sk_buff *
3408rtllib_disauth_skb(struct rtllib_network *beacon,
3409 struct rtllib_device *ieee, u16 asRsn)
94a79942
LF		 3410{
3411 struct sk_buff *skb;
3412 struct rtllib_disauth *disauth;
94a79942
LF		 3413 int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;
3414
94a79942 3415 skb = dev_alloc_skb(len);
9d92ece8 3416 if (!skb)
94a79942 3417 return NULL;
94a79942 3418
94a79942
LF		 3419 skb_reserve(skb, ieee->tx_headroom);
3420
9d92ece8
LF		 3421 disauth = (struct rtllib_disauth *) skb_put(skb,
3422 sizeof(struct rtllib_disauth));
94a79942
LF		 3423 disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
3424 disauth->header.duration_id = 0;
3425
b57ceb19
MK		 3426 ether_addr_copy(disauth->header.addr1, beacon->bssid);
3427 ether_addr_copy(disauth->header.addr2, ieee->dev->dev_addr);
3428 ether_addr_copy(disauth->header.addr3, beacon->bssid);
94a79942
LF		 3429
3430 disauth->reason = cpu_to_le16(asRsn);
3431 return skb;
3432}
3433
ec65ef8e
BX		 3434static inline struct sk_buff *
3435rtllib_disassociate_skb(struct rtllib_network *beacon,
3436 struct rtllib_device *ieee, u16 asRsn)
94a79942
LF		 3437{
3438 struct sk_buff *skb;
3439 struct rtllib_disassoc *disass;
94a79942 3440 int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
3a6b70c3 3441
94a79942
LF		 3442 skb = dev_alloc_skb(len);
3443
9d92ece8 3444 if (!skb)
94a79942 3445 return NULL;
94a79942 3446
94a79942
LF		 3447 skb_reserve(skb, ieee->tx_headroom);
3448
9d92ece8
LF		 3449 disass = (struct rtllib_disassoc *) skb_put(skb,
3450 sizeof(struct rtllib_disassoc));
94a79942
LF		 3451 disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
3452 disass->header.duration_id = 0;
3453
b57ceb19
MK		 3454 ether_addr_copy(disass->header.addr1, beacon->bssid);
3455 ether_addr_copy(disass->header.addr2, ieee->dev->dev_addr);
3456 ether_addr_copy(disass->header.addr3, beacon->bssid);
94a79942
LF		 3457
3458 disass->reason = cpu_to_le16(asRsn);
3459 return skb;
3460}
3461
3462void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
3463{
3464 struct rtllib_network *beacon = &ieee->current_network;
3465 struct sk_buff *skb;
3466
9d92ece8
LF		 3467 if (deauth)
3468 skb = rtllib_disauth_skb(beacon, ieee, asRsn);
3469 else
3470 skb = rtllib_disassociate_skb(beacon, ieee, asRsn);
94a79942 3471
9d92ece8 3472 if (skb)
94a79942 3473 softmac_mgmt_xmit(skb, ieee);
94a79942
LF		 3474}
3475
3476u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
3477{
9d92ece8 3478 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
94a79942 3479 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
9d92ece8 3480 int wpa_ie_len = ieee->wpa_ie_len;
32c44cb5 3481 struct lib80211_crypt_data *crypt;
94a79942
LF		 3482 int encrypt;
3483
0ddcf5fd 3484 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
9d92ece8
LF		 3485 encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
3486 || (ieee->host_encrypt && crypt && crypt->ops &&
4c29207a 3487 (strcmp(crypt->ops->name, "R-WEP") == 0));
94a79942
LF		 3488
3489 /* simply judge */
3490 if (encrypt && (wpa_ie_len == 0)) {
3491 return SEC_ALG_WEP;
3492 } else if ((wpa_ie_len != 0)) {
9d92ece8
LF		 3493 if (((ieee->wpa_ie[0] == 0xdd) &&
3494 (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) ||
3495 ((ieee->wpa_ie[0] == 0x30) &&
3496 (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
94a79942
LF		 3497 return SEC_ALG_CCMP;
3498 else
3499 return SEC_ALG_TKIP;
3500 } else {
3501 return SEC_ALG_NONE;
3502 }
3503}
3504
9d92ece8
LF		 3505int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p,
3506 u8 is_mesh)
94a79942
LF		 3507{
3508 struct ieee_param *param;
9d92ece8 3509 int ret = 0;
94a79942 3510
9afa9370 3511 mutex_lock(&ieee->wx_mutex);
94a79942 3512
9d92ece8 3513 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
94a79942
LF		 3514 ret = -EINVAL;
3515 goto out;
3516 }
3517
21624981
TB		 3518 param = memdup_user(p->pointer, p->length);
3519 if (IS_ERR(param)) {
3520 ret = PTR_ERR(param);
94a79942
LF		 3521 goto out;
3522 }
3523
3524 switch (param->cmd) {
94a79942
LF		 3525 case IEEE_CMD_SET_WPA_PARAM:
3526 ret = rtllib_wpa_set_param(ieee, param->u.wpa_param.name,
3527 param->u.wpa_param.value);
3528 break;
3529
3530 case IEEE_CMD_SET_WPA_IE:
3531 ret = rtllib_wpa_set_wpa_ie(ieee, param, p->length);
3532 break;
3533
3534 case IEEE_CMD_SET_ENCRYPTION:
3535 ret = rtllib_wpa_set_encryption(ieee, param, p->length, 0);
3536 break;
3537
3538 case IEEE_CMD_MLME:
3539 ret = rtllib_wpa_mlme(ieee, param->u.mlme.command,
3540 param->u.mlme.reason_code);
3541 break;
3542
3543 default:
d69d2054
MK		 3544 netdev_info(ieee->dev, "Unknown WPA supplicant request: %d\n",
3545 param->cmd);
94a79942
LF		 3546 ret = -EOPNOTSUPP;
3547 break;
3548 }
3549
3550 if (ret == 0 && copy_to_user(p->pointer, param, p->length))
3551 ret = -EFAULT;
3552
3553 kfree(param);
3554out:
9afa9370 3555 mutex_unlock(&ieee->wx_mutex);
94a79942
LF		 3556
3557 return ret;
3558}
3b28499c 3559EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl);
94a79942 3560
c5654c0b 3561static void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib)
94a79942
LF		 3562{
3563 u8 OpMode;
3564 u8 i;
3565 bool bFilterOutNonAssociatedBSSID = false;
3566
3567 rtllib->state = RTLLIB_NOLINK;
3568
9d92ece8
LF		 3569 for (i = 0; i < 6; i++)
3570 rtllib->current_network.bssid[i] = 0x55;
94a79942
LF		 3571
3572 rtllib->OpMode = RT_OP_MODE_NO_LINK;
9d92ece8
LF		 3573 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3574 rtllib->current_network.bssid);
94a79942
LF		 3575 OpMode = RT_OP_MODE_NO_LINK;
3576 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
3577 rtllib_stop_send_beacons(rtllib);
3578
3579 bFilterOutNonAssociatedBSSID = false;
9d92ece8
LF		 3580 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3581 (u8 *)(&bFilterOutNonAssociatedBSSID));
94a79942
LF		 3582 notify_wx_assoc_event(rtllib);
3583
3584}
3585
35e33b04
MK		 3586static void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib,
3587 u8 *asSta, u8 asRsn)
94a79942
LF		 3588{
3589 u8 i;
3590 u8 OpMode;
3591
3592 RemovePeerTS(rtllib, asSta);
3593
ea9f10f2 3594 if (memcmp(rtllib->current_network.bssid, asSta, 6) == 0) {
94a79942
LF		 3595 rtllib->state = RTLLIB_NOLINK;
3596
9d92ece8
LF		 3597 for (i = 0; i < 6; i++)
3598 rtllib->current_network.bssid[i] = 0x22;
94a79942
LF		 3599 OpMode = RT_OP_MODE_NO_LINK;
3600 rtllib->OpMode = RT_OP_MODE_NO_LINK;
9d92ece8
LF		 3601 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS,
3602 (u8 *)(&OpMode));
94a79942
LF		 3603 rtllib_disassociate(rtllib);
3604
9d92ece8
LF		 3605 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3606 rtllib->current_network.bssid);
94a79942
LF		 3607
3608 }
3609
3610}
3611
c5654c0b 3612static void
94a79942 3613rtllib_MgntDisconnectAP(
9d92ece8 3614 struct rtllib_device *rtllib,
94a79942
LF		 3615 u8 asRsn
3616)
3617{
3618 bool bFilterOutNonAssociatedBSSID = false;
3619
94a79942 3620 bFilterOutNonAssociatedBSSID = false;
9d92ece8
LF		 3621 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3622 (u8 *)(&bFilterOutNonAssociatedBSSID));
3623 rtllib_MlmeDisassociateRequest(rtllib, rtllib->current_network.bssid,
3624 asRsn);
94a79942
LF		 3625
3626 rtllib->state = RTLLIB_NOLINK;
3627}
3628
9d92ece8 3629bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn)
94a79942
LF		 3630{
3631 if (rtllib->ps != RTLLIB_PS_DISABLED)
9d92ece8 3632 rtllib->sta_wake_up(rtllib->dev);
94a79942 3633
9d92ece8
LF		 3634 if (rtllib->state == RTLLIB_LINKED) {
3635 if (rtllib->iw_mode == IW_MODE_ADHOC)
94a79942 3636 rtllib_MgntDisconnectIBSS(rtllib);
9d92ece8 3637 if (rtllib->iw_mode == IW_MODE_INFRA)
94a79942 3638 rtllib_MgntDisconnectAP(rtllib, asRsn);
94a79942
LF		 3639
3640 }
3641
3642 return true;
3643}
3b28499c 3644EXPORT_SYMBOL(rtllib_MgntDisconnect);
94a79942
LF		 3645
3646void notify_wx_assoc_event(struct rtllib_device *ieee)
3647{
3648 union iwreq_data wrqu;
3649
3650 if (ieee->cannot_notify)
3651 return;
3652
3653 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3654 if (ieee->state == RTLLIB_LINKED)
9d92ece8
LF		 3655 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid,
3656 ETH_ALEN);
3657 else {
94a79942 3658
d69d2054
MK		 3659 netdev_info(ieee->dev, "%s(): Tell user space disconnected\n",
3660 __func__);
cdbaf3f6 3661 eth_zero_addr(wrqu.ap_addr.sa_data);
94a79942
LF		 3662 }
3663 wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3664}
3b28499c 3665EXPORT_SYMBOL(notify_wx_assoc_event);
Linux kernel - Deliverables
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