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staging: rtl8192e: Remove softmac_hint11d_wq queue
[linux-2.6-block.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
94a79942
LF		 26short rtllib_is_54g(struct rtllib_network *net)
27{
9d92ece8 28 return (net->rates_ex_len > 0) || (net->rates_len > 4);
94a79942
LF		 29}
30
cd017123 31/* returns the total length needed for placing the RATE MFIE
94a79942
LF		 32 * tag and the EXTENDED RATE MFIE tag if needed.
33 * It encludes two bytes per tag for the tag itself and its len
34 */
ec0dc6be 35static unsigned int rtllib_MFIE_rate_len(struct rtllib_device *ieee)
94a79942
LF		 36{
37 unsigned int rate_len = 0;
38
39 if (ieee->modulation & RTLLIB_CCK_MODULATION)
40 rate_len = RTLLIB_CCK_RATE_LEN + 2;
41
42 if (ieee->modulation & RTLLIB_OFDM_MODULATION)
43
44 rate_len += RTLLIB_OFDM_RATE_LEN + 2;
45
46 return rate_len;
47}
48
cd017123 49/* place the MFIE rate, tag to the memory (double) pointed.
94a79942
LF		 50 * Then it updates the pointer so that
51 * it points after the new MFIE tag added.
52 */
ec0dc6be 53static void rtllib_MFIE_Brate(struct rtllib_device *ieee, u8 **tag_p)
94a79942
LF		 54{
55 u8 *tag = *tag_p;
56
9d92ece8 57 if (ieee->modulation & RTLLIB_CCK_MODULATION) {
94a79942
LF		 58 *tag++ = MFIE_TYPE_RATES;
59 *tag++ = 4;
60 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_1MB;
61 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_2MB;
62 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_5MB;
63 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_CCK_RATE_11MB;
64 }
65
9d92ece8 66 /* We may add an option for custom rates that specific HW
14b40d92
MK		 67 * might support
68 */
94a79942
LF		 69 *tag_p = tag;
70}
71
ec0dc6be 72static void rtllib_MFIE_Grate(struct rtllib_device *ieee, u8 **tag_p)
94a79942
LF		 73{
74 u8 *tag = *tag_p;
75
9d92ece8 76 if (ieee->modulation & RTLLIB_OFDM_MODULATION) {
94a79942
LF		 77 *tag++ = MFIE_TYPE_RATES_EX;
78 *tag++ = 8;
79 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_6MB;
80 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_9MB;
81 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_12MB;
82 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_18MB;
83 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_24MB;
84 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_36MB;
85 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_48MB;
86 *tag++ = RTLLIB_BASIC_RATE_MASK | RTLLIB_OFDM_RATE_54MB;
94a79942 87 }
9d92ece8 88 /* We may add an option for custom rates that specific HW might
14b40d92
MK		 89 * support
90 */
94a79942
LF		 91 *tag_p = tag;
92}
93
ec0dc6be 94static void rtllib_WMM_Info(struct rtllib_device *ieee, u8 **tag_p)
9d92ece8 95{
94a79942
LF		 96 u8 *tag = *tag_p;
97
98 *tag++ = MFIE_TYPE_GENERIC;
99 *tag++ = 7;
100 *tag++ = 0x00;
101 *tag++ = 0x50;
102 *tag++ = 0xf2;
103 *tag++ = 0x02;
104 *tag++ = 0x00;
105 *tag++ = 0x01;
94a79942 106 *tag++ = MAX_SP_Len;
94a79942
LF		 107 *tag_p = tag;
108}
109
9d92ece8
LF		 110void rtllib_TURBO_Info(struct rtllib_device *ieee, u8 **tag_p)
111{
94a79942
LF		 112 u8 *tag = *tag_p;
113
9d92ece8
LF		 114 *tag++ = MFIE_TYPE_GENERIC;
115 *tag++ = 7;
116 *tag++ = 0x00;
117 *tag++ = 0xe0;
118 *tag++ = 0x4c;
119 *tag++ = 0x01;
120 *tag++ = 0x02;
121 *tag++ = 0x11;
94a79942
LF		 122 *tag++ = 0x00;
123
124 *tag_p = tag;
d69d2054 125 netdev_alert(ieee->dev, "This is enable turbo mode IE process\n");
94a79942
LF		 126}
127
ec0dc6be 128static void enqueue_mgmt(struct rtllib_device *ieee, struct sk_buff *skb)
94a79942
LF		 129{
130 int nh;
3a6b70c3 131
9d92ece8 132 nh = (ieee->mgmt_queue_head + 1) % MGMT_QUEUE_NUM;
94a79942 133
14b40d92 134/* if the queue is full but we have newer frames then
94a79942
LF		 135 * just overwrites the oldest.
136 *
137 * if (nh == ieee->mgmt_queue_tail)
138 * return -1;
139 */
140 ieee->mgmt_queue_head = nh;
141 ieee->mgmt_queue_ring[nh] = skb;
142
143}
144
ec0dc6be 145static void init_mgmt_queue(struct rtllib_device *ieee)
94a79942
LF		 146{
147 ieee->mgmt_queue_tail = ieee->mgmt_queue_head = 0;
148}
149
150
151u8
152MgntQuery_TxRateExcludeCCKRates(struct rtllib_device *ieee)
153{
154 u16 i;
155 u8 QueryRate = 0;
156 u8 BasicRate;
157
158
9d92ece8 159 for (i = 0; i < ieee->current_network.rates_len; i++) {
94a79942 160 BasicRate = ieee->current_network.rates[i]&0x7F;
9d92ece8
LF		 161 if (!rtllib_is_cck_rate(BasicRate)) {
162 if (QueryRate == 0) {
94a79942 163 QueryRate = BasicRate;
9d92ece8 164 } else {
94a79942 165 if (BasicRate < QueryRate)
94a79942 166 QueryRate = BasicRate;
94a79942
LF		 167 }
168 }
169 }
170
9d92ece8 171 if (QueryRate == 0) {
94a79942 172 QueryRate = 12;
d69d2054 173 netdev_info(ieee->dev, "No BasicRate found!!\n");
94a79942
LF		 174 }
175 return QueryRate;
176}
177
d82f0029 178static u8 MgntQuery_MgntFrameTxRate(struct rtllib_device *ieee)
94a79942 179{
7796d93e 180 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
94a79942
LF		 181 u8 rate;
182
183 if (pHTInfo->IOTAction & HT_IOT_ACT_MGNT_USE_CCK_6M)
184 rate = 0x0c;
185 else
186 rate = ieee->basic_rate & 0x7f;
187
9d92ece8
LF		 188 if (rate == 0) {
189 if (ieee->mode == IEEE_A ||
190 ieee->mode == IEEE_N_5G ||
191 (ieee->mode == IEEE_N_24G && !pHTInfo->bCurSuppCCK))
94a79942
LF		 192 rate = 0x0c;
193 else
194 rate = 0x02;
195 }
196
197 return rate;
198}
199
94a79942
LF		 200inline void softmac_mgmt_xmit(struct sk_buff *skb, struct rtllib_device *ieee)
201{
202 unsigned long flags;
203 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
9d92ece8 204 struct rtllib_hdr_3addr *header =
94a79942
LF		 205 (struct rtllib_hdr_3addr *) skb->data;
206
3b83db43 207 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
3a6b70c3 208
94a79942
LF		 209 spin_lock_irqsave(&ieee->lock, flags);
210
211 /* called with 2nd param 0, no mgmt lock required */
9d92ece8 212 rtllib_sta_wakeup(ieee, 0);
94a79942 213
f7df1918 214 if (le16_to_cpu(header->frame_ctl) == RTLLIB_STYPE_BEACON)
94a79942
LF		 215 tcb_desc->queue_index = BEACON_QUEUE;
216 else
217 tcb_desc->queue_index = MGNT_QUEUE;
218
219 if (ieee->disable_mgnt_queue)
220 tcb_desc->queue_index = HIGH_QUEUE;
221
222 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
223 tcb_desc->RATRIndex = 7;
224 tcb_desc->bTxDisableRateFallBack = 1;
225 tcb_desc->bTxUseDriverAssingedRate = 1;
226 if (single) {
9d92ece8
LF		 227 if (ieee->queue_stop) {
228 enqueue_mgmt(ieee, skb);
229 } else {
94a79942
LF		 230 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0]<<4);
231
232 if (ieee->seq_ctrl[0] == 0xFFF)
233 ieee->seq_ctrl[0] = 0;
234 else
235 ieee->seq_ctrl[0]++;
236
237 /* avoid watchdog triggers */
9d92ece8
LF		 238 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
239 ieee->basic_rate);
94a79942
LF		 240 }
241
242 spin_unlock_irqrestore(&ieee->lock, flags);
9d92ece8 243 } else {
94a79942
LF		 244 spin_unlock_irqrestore(&ieee->lock, flags);
245 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags);
246
247 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
248
249 if (ieee->seq_ctrl[0] == 0xFFF)
250 ieee->seq_ctrl[0] = 0;
251 else
252 ieee->seq_ctrl[0]++;
253
f2635894 254 /* check whether the managed packet queued greater than 5 */
35e33b04
MK		 255 if (!ieee->check_nic_enough_desc(ieee->dev,
256 tcb_desc->queue_index) ||
257 skb_queue_len(&ieee->skb_waitQ[tcb_desc->queue_index]) ||
258 ieee->queue_stop) {
14b40d92
MK		 259 /* insert the skb packet to the management queue
260 *
261 * as for the completion function, it does not need
94a79942 262 * to check it any more.
14b40d92 263 */
d69d2054 264 netdev_info(ieee->dev,
0822339b
MK		 265 "%s():insert to waitqueue, queue_index:%d!\n",
266 __func__, tcb_desc->queue_index);
9d92ece8
LF		 267 skb_queue_tail(&ieee->skb_waitQ[tcb_desc->queue_index],
268 skb);
94a79942 269 } else {
9d92ece8 270 ieee->softmac_hard_start_xmit(skb, ieee->dev);
94a79942
LF		 271 }
272 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags);
273 }
274}
275
276inline void softmac_ps_mgmt_xmit(struct sk_buff *skb,
277 struct rtllib_device *ieee)
278{
279 short single = ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE;
280 struct rtllib_hdr_3addr *header =
281 (struct rtllib_hdr_3addr *) skb->data;
9d92ece8 282 u16 fc, type, stype;
3b83db43 283 struct cb_desc *tcb_desc = (struct cb_desc *)(skb->cb + 8);
94a79942 284
1830a6d8 285 fc = le16_to_cpu(header->frame_ctl);
94a79942
LF		 286 type = WLAN_FC_GET_TYPE(fc);
287 stype = WLAN_FC_GET_STYPE(fc);
288
289
290 if (stype != RTLLIB_STYPE_PSPOLL)
291 tcb_desc->queue_index = MGNT_QUEUE;
292 else
293 tcb_desc->queue_index = HIGH_QUEUE;
294
295 if (ieee->disable_mgnt_queue)
296 tcb_desc->queue_index = HIGH_QUEUE;
297
298
299 tcb_desc->data_rate = MgntQuery_MgntFrameTxRate(ieee);
300 tcb_desc->RATRIndex = 7;
301 tcb_desc->bTxDisableRateFallBack = 1;
302 tcb_desc->bTxUseDriverAssingedRate = 1;
303 if (single) {
304 if (type != RTLLIB_FTYPE_CTL) {
305 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
306
307 if (ieee->seq_ctrl[0] == 0xFFF)
308 ieee->seq_ctrl[0] = 0;
309 else
310 ieee->seq_ctrl[0]++;
311
312 }
313 /* avoid watchdog triggers */
9d92ece8
LF		 314 ieee->softmac_data_hard_start_xmit(skb, ieee->dev,
315 ieee->basic_rate);
94a79942
LF		 316
317 } else {
318 if (type != RTLLIB_FTYPE_CTL) {
319 header->seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
320
321 if (ieee->seq_ctrl[0] == 0xFFF)
322 ieee->seq_ctrl[0] = 0;
323 else
324 ieee->seq_ctrl[0]++;
325 }
9d92ece8 326 ieee->softmac_hard_start_xmit(skb, ieee->dev);
94a79942
LF		 327
328 }
329}
330
6d91857d 331static inline struct sk_buff *rtllib_probe_req(struct rtllib_device *ieee)
94a79942 332{
9d92ece8 333 unsigned int len, rate_len;
94a79942
LF		 334 u8 *tag;
335 struct sk_buff *skb;
336 struct rtllib_probe_request *req;
337
338 len = ieee->current_network.ssid_len;
339
340 rate_len = rtllib_MFIE_rate_len(ieee);
341
94a79942
LF		 342 skb = dev_alloc_skb(sizeof(struct rtllib_probe_request) +
343 2 + len + rate_len + ieee->tx_headroom);
94a79942
LF		 344
345 if (!skb)
346 return NULL;
347
94a79942
LF		 348 skb_reserve(skb, ieee->tx_headroom);
349
9d92ece8
LF		 350 req = (struct rtllib_probe_request *) skb_put(skb,
351 sizeof(struct rtllib_probe_request));
94a79942
LF		 352 req->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_REQ);
353 req->header.duration_id = 0;
354
355 memset(req->header.addr1, 0xff, ETH_ALEN);
b57ceb19 356 ether_addr_copy(req->header.addr2, ieee->dev->dev_addr);
94a79942
LF		 357 memset(req->header.addr3, 0xff, ETH_ALEN);
358
9d92ece8 359 tag = (u8 *) skb_put(skb, len + 2 + rate_len);
94a79942
LF		 360
361 *tag++ = MFIE_TYPE_SSID;
362 *tag++ = len;
363 memcpy(tag, ieee->current_network.ssid, len);
364 tag += len;
365
9d92ece8
LF		 366 rtllib_MFIE_Brate(ieee, &tag);
367 rtllib_MFIE_Grate(ieee, &tag);
94a79942
LF		 368
369 return skb;
370}
371
372struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee);
373
ec0dc6be 374static void rtllib_send_beacon(struct rtllib_device *ieee)
94a79942
LF		 375{
376 struct sk_buff *skb;
3a6b70c3 377
94a79942
LF		 378 if (!ieee->ieee_up)
379 return;
380 skb = rtllib_get_beacon_(ieee);
381
9d92ece8 382 if (skb) {
94a79942
LF		 383 softmac_mgmt_xmit(skb, ieee);
384 ieee->softmac_stats.tx_beacons++;
385 }
386
9d92ece8
LF		 387 if (ieee->beacon_txing && ieee->ieee_up)
388 mod_timer(&ieee->beacon_timer, jiffies +
8b9733c1 389 (msecs_to_jiffies(ieee->current_network.beacon_interval - 5)));
94a79942
LF		 390}
391
392
ec0dc6be 393static void rtllib_send_beacon_cb(unsigned long _ieee)
94a79942
LF		 394{
395 struct rtllib_device *ieee =
396 (struct rtllib_device *) _ieee;
397 unsigned long flags;
398
399 spin_lock_irqsave(&ieee->beacon_lock, flags);
400 rtllib_send_beacon(ieee);
401 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
402}
403
14b40d92 404/* Enables network monitor mode, all rx packets will be received. */
9d92ece8
LF		 405void rtllib_EnableNetMonitorMode(struct net_device *dev,
406 bool bInitState)
94a79942 407{
9d92ece8 408 struct rtllib_device *ieee = netdev_priv_rsl(dev);
94a79942 409
d69d2054 410 netdev_info(dev, "========>Enter Monitor Mode\n");
94a79942 411
9d92ece8 412 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
94a79942
LF		 413}
414
415
14b40d92
MK		 416/* Disables network monitor mode. Only packets destinated to
417 * us will be received.
94a79942 418 */
9d92ece8
LF		 419void rtllib_DisableNetMonitorMode(struct net_device *dev,
420 bool bInitState)
94a79942 421{
9d92ece8 422 struct rtllib_device *ieee = netdev_priv_rsl(dev);
94a79942 423
d69d2054 424 netdev_info(dev, "========>Exit Monitor Mode\n");
94a79942 425
9d92ece8 426 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
94a79942
LF		 427}
428
429
14b40d92 430/* Enables the specialized promiscuous mode required by Intel.
9d92ece8
LF		 431 * In this mode, Intel intends to hear traffics from/to other STAs in the
432 * same BSS. Therefore we don't have to disable checking BSSID and we only need
433 * to allow all dest. BUT: if we enable checking BSSID then we can't recv
434 * packets from other STA.
94a79942 435 */
9d92ece8
LF		 436void rtllib_EnableIntelPromiscuousMode(struct net_device *dev,
437 bool bInitState)
94a79942 438{
9d92ece8 439 bool bFilterOutNonAssociatedBSSID = false;
94a79942 440
9d92ece8 441 struct rtllib_device *ieee = netdev_priv_rsl(dev);
94a79942 442
d69d2054 443 netdev_info(dev, "========>Enter Intel Promiscuous Mode\n");
94a79942 444
9d92ece8
LF		 445 ieee->AllowAllDestAddrHandler(dev, true, !bInitState);
446 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
447 (u8 *)&bFilterOutNonAssociatedBSSID);
94a79942 448
9d92ece8 449 ieee->bNetPromiscuousMode = true;
94a79942 450}
3b28499c 451EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode);
94a79942
LF		 452
453
14b40d92
MK		 454/* Disables the specialized promiscuous mode required by Intel.
455 * See MgntEnableIntelPromiscuousMode for detail.
94a79942 456 */
9d92ece8
LF		 457void rtllib_DisableIntelPromiscuousMode(struct net_device *dev,
458 bool bInitState)
94a79942 459{
9d92ece8 460 bool bFilterOutNonAssociatedBSSID = true;
94a79942 461
9d92ece8 462 struct rtllib_device *ieee = netdev_priv_rsl(dev);
94a79942 463
d69d2054 464 netdev_info(dev, "========>Exit Intel Promiscuous Mode\n");
94a79942 465
9d92ece8
LF		 466 ieee->AllowAllDestAddrHandler(dev, false, !bInitState);
467 ieee->SetHwRegHandler(dev, HW_VAR_CECHK_BSSID,
468 (u8 *)&bFilterOutNonAssociatedBSSID);
94a79942 469
9d92ece8 470 ieee->bNetPromiscuousMode = false;
94a79942 471}
3b28499c 472EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode);
94a79942 473
ec0dc6be 474static void rtllib_send_probe(struct rtllib_device *ieee, u8 is_mesh)
94a79942
LF		 475{
476 struct sk_buff *skb;
3a6b70c3 477
94a79942 478 skb = rtllib_probe_req(ieee);
9d92ece8 479 if (skb) {
94a79942
LF		 480 softmac_mgmt_xmit(skb, ieee);
481 ieee->softmac_stats.tx_probe_rq++;
482 }
483}
484
485
486void rtllib_send_probe_requests(struct rtllib_device *ieee, u8 is_mesh)
487{
488 if (ieee->active_scan && (ieee->softmac_features &
489 IEEE_SOFTMAC_PROBERQ)) {
490 rtllib_send_probe(ieee, 0);
491 rtllib_send_probe(ieee, 0);
492 }
493}
494
94a79942
LF		 495void rtllib_update_active_chan_map(struct rtllib_device *ieee)
496{
9d92ece8
LF		 497 memcpy(ieee->active_channel_map, GET_DOT11D_INFO(ieee)->channel_map,
498 MAX_CHANNEL_NUMBER+1);
94a79942
LF		 499}
500
501/* this performs syncro scan blocking the caller until all channels
502 * in the allowed channel map has been checked.
503 */
504void rtllib_softmac_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
505{
9d92ece8 506 union iwreq_data wrqu;
94a79942
LF		 507 short ch = 0;
508
509 rtllib_update_active_chan_map(ieee);
510
511 ieee->be_scan_inprogress = true;
512
513 down(&ieee->scan_sem);
514
9d92ece8 515 while (1) {
94a79942
LF		 516 do {
517 ch++;
518 if (ch > MAX_CHANNEL_NUMBER)
519 goto out; /* scan completed */
9d92ece8 520 } while (!ieee->active_channel_map[ch]);
94a79942 521
430fb250 522 /* this function can be called in two situations
94a79942
LF		 523 * 1- We have switched to ad-hoc mode and we are
524 * performing a complete syncro scan before conclude
525 * there are no interesting cell and to create a
526 * new one. In this case the link state is
527 * RTLLIB_NOLINK until we found an interesting cell.
528 * If so the ieee8021_new_net, called by the RX path
529 * will set the state to RTLLIB_LINKED, so we stop
530 * scanning
531 * 2- We are linked and the root uses run iwlist scan.
532 * So we switch to RTLLIB_LINKED_SCANNING to remember
533 * that we are still logically linked (not interested in
534 * new network events, despite for updating the net list,
535 * but we are temporarly 'unlinked' as the driver shall
536 * not filter RX frames and the channel is changing.
cd017123 537 * So the only situation in which are interested is to check
94a79942
LF		 538 * if the state become LINKED because of the #1 situation
539 */
540
541 if (ieee->state == RTLLIB_LINKED)
542 goto out;
9d92ece8 543 if (ieee->sync_scan_hurryup) {
d69d2054
MK		 544 netdev_info(ieee->dev,
545 "============>sync_scan_hurryup out\n");
94a79942
LF		 546 goto out;
547 }
548
549 ieee->set_chan(ieee->dev, ch);
550 if (ieee->active_channel_map[ch] == 1)
9d92ece8 551 rtllib_send_probe_requests(ieee, 0);
94a79942
LF		 552
553 /* this prevent excessive time wait when we
554 * need to wait for a syncro scan to end..
555 */
556 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME);
557 }
558out:
559 ieee->actscanning = false;
560 ieee->sync_scan_hurryup = 0;
561
9d92ece8 562 if (ieee->state >= RTLLIB_LINKED) {
94a79942
LF		 563 if (IS_DOT11D_ENABLE(ieee))
564 DOT11D_ScanComplete(ieee);
94a79942
LF		 565 }
566 up(&ieee->scan_sem);
567
568 ieee->be_scan_inprogress = false;
569
94a79942 570 memset(&wrqu, 0, sizeof(wrqu));
9d92ece8 571 wireless_send_event(ieee->dev, SIOCGIWSCAN, &wrqu, NULL);
94a79942
LF		 572}
573
ec0dc6be 574static void rtllib_softmac_scan_wq(void *data)
94a79942 575{
9d92ece8
LF		 576 struct rtllib_device *ieee = container_of_dwork_rsl(data,
577 struct rtllib_device, softmac_scan_wq);
94a79942
LF		 578 u8 last_channel = ieee->current_network.channel;
579
580 rtllib_update_active_chan_map(ieee);
581
582 if (!ieee->ieee_up)
583 return;
4bb01423 584 if (rtllib_act_scanning(ieee, true))
94a79942
LF		 585 return;
586
587 down(&ieee->scan_sem);
588
9d92ece8 589 if (ieee->eRFPowerState == eRfOff) {
d69d2054
MK		 590 netdev_info(ieee->dev,
591 "======>%s():rf state is eRfOff, return\n",
592 __func__);
94a79942
LF		 593 goto out1;
594 }
595
9d92ece8 596 do {
94a79942 597 ieee->current_network.channel =
9d92ece8
LF		 598 (ieee->current_network.channel + 1) %
599 MAX_CHANNEL_NUMBER;
600 if (ieee->scan_watch_dog++ > MAX_CHANNEL_NUMBER) {
94a79942
LF		 601 if (!ieee->active_channel_map[ieee->current_network.channel])
602 ieee->current_network.channel = 6;
603 goto out; /* no good chans */
604 }
9d92ece8 605 } while (!ieee->active_channel_map[ieee->current_network.channel]);
94a79942 606
9d92ece8 607 if (ieee->scanning_continue == 0)
94a79942
LF		 608 goto out;
609
610 ieee->set_chan(ieee->dev, ieee->current_network.channel);
611
612 if (ieee->active_channel_map[ieee->current_network.channel] == 1)
9d92ece8 613 rtllib_send_probe_requests(ieee, 0);
94a79942 614
9d92ece8 615 queue_delayed_work_rsl(ieee->wq, &ieee->softmac_scan_wq,
8b9733c1 616 msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME));
94a79942
LF		 617
618 up(&ieee->scan_sem);
619 return;
620
621out:
94a79942
LF		 622 if (IS_DOT11D_ENABLE(ieee))
623 DOT11D_ScanComplete(ieee);
94a79942
LF		 624 ieee->current_network.channel = last_channel;
625
626out1:
627 ieee->actscanning = false;
628 ieee->scan_watch_dog = 0;
629 ieee->scanning_continue = 0;
630 up(&ieee->scan_sem);
631}
632
633
634
ec0dc6be 635static void rtllib_beacons_start(struct rtllib_device *ieee)
94a79942
LF		 636{
637 unsigned long flags;
3a6b70c3 638
9d92ece8 639 spin_lock_irqsave(&ieee->beacon_lock, flags);
94a79942
LF		 640
641 ieee->beacon_txing = 1;
642 rtllib_send_beacon(ieee);
643
9d92ece8 644 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
94a79942
LF		 645}
646
ec0dc6be 647static void rtllib_beacons_stop(struct rtllib_device *ieee)
94a79942
LF		 648{
649 unsigned long flags;
650
9d92ece8 651 spin_lock_irqsave(&ieee->beacon_lock, flags);
94a79942
LF		 652
653 ieee->beacon_txing = 0;
654 del_timer_sync(&ieee->beacon_timer);
655
9d92ece8 656 spin_unlock_irqrestore(&ieee->beacon_lock, flags);
94a79942
LF		 657
658}
659
660
661void rtllib_stop_send_beacons(struct rtllib_device *ieee)
662{
663 if (ieee->stop_send_beacons)
664 ieee->stop_send_beacons(ieee->dev);
665 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
666 rtllib_beacons_stop(ieee);
667}
3b28499c 668EXPORT_SYMBOL(rtllib_stop_send_beacons);
94a79942
LF		 669
670
671void rtllib_start_send_beacons(struct rtllib_device *ieee)
672{
673 if (ieee->start_send_beacons)
674 ieee->start_send_beacons(ieee->dev);
675 if (ieee->softmac_features & IEEE_SOFTMAC_BEACONS)
676 rtllib_beacons_start(ieee);
677}
3b28499c 678EXPORT_SYMBOL(rtllib_start_send_beacons);
94a79942
LF		 679
680
ec0dc6be 681static void rtllib_softmac_stop_scan(struct rtllib_device *ieee)
94a79942 682{
94a79942
LF		 683 down(&ieee->scan_sem);
684 ieee->scan_watch_dog = 0;
cb762154 685 if (ieee->scanning_continue == 1) {
94a79942 686 ieee->scanning_continue = 0;
014e4c27 687 ieee->actscanning = false;
94a79942 688
94a79942 689 cancel_delayed_work(&ieee->softmac_scan_wq);
94a79942
LF		 690 }
691
692 up(&ieee->scan_sem);
693}
694
695void rtllib_stop_scan(struct rtllib_device *ieee)
696{
9d92ece8 697 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
94a79942 698 rtllib_softmac_stop_scan(ieee);
9d92ece8 699 } else {
94a79942
LF		 700 if (ieee->rtllib_stop_hw_scan)
701 ieee->rtllib_stop_hw_scan(ieee->dev);
702 }
703}
3b28499c 704EXPORT_SYMBOL(rtllib_stop_scan);
94a79942
LF		 705
706void rtllib_stop_scan_syncro(struct rtllib_device *ieee)
707{
9d92ece8 708 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
94a79942 709 ieee->sync_scan_hurryup = 1;
9d92ece8 710 } else {
94a79942
LF		 711 if (ieee->rtllib_stop_hw_scan)
712 ieee->rtllib_stop_hw_scan(ieee->dev);
713 }
714}
3b28499c 715EXPORT_SYMBOL(rtllib_stop_scan_syncro);
94a79942
LF		 716
717bool rtllib_act_scanning(struct rtllib_device *ieee, bool sync_scan)
718{
9d92ece8
LF		 719 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
720 if (sync_scan)
94a79942 721 return ieee->be_scan_inprogress;
9d92ece8
LF		 722 else
723 return ieee->actscanning || ieee->be_scan_inprogress;
724 } else {
94a79942
LF		 725 return test_bit(STATUS_SCANNING, &ieee->status);
726 }
727}
3b28499c 728EXPORT_SYMBOL(rtllib_act_scanning);
94a79942
LF		 729
730/* called with ieee->lock held */
ec0dc6be 731static void rtllib_start_scan(struct rtllib_device *ieee)
94a79942 732{
9d92ece8 733 RT_TRACE(COMP_DBG, "===>%s()\n", __func__);
94a79942 734 if (ieee->rtllib_ips_leave_wq != NULL)
9d92ece8 735 ieee->rtllib_ips_leave_wq(ieee->dev);
94a79942 736
9d92ece8 737 if (IS_DOT11D_ENABLE(ieee)) {
94a79942 738 if (IS_COUNTRY_IE_VALID(ieee))
94a79942 739 RESET_CIE_WATCHDOG(ieee);
94a79942 740 }
94a79942
LF		 741 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
742 if (ieee->scanning_continue == 0) {
743 ieee->actscanning = true;
744 ieee->scanning_continue = 1;
9d92ece8
LF		 745 queue_delayed_work_rsl(ieee->wq,
746 &ieee->softmac_scan_wq, 0);
94a79942
LF		 747 }
748 } else {
749 if (ieee->rtllib_start_hw_scan)
750 ieee->rtllib_start_hw_scan(ieee->dev);
751 }
94a79942
LF		 752}
753
94a79942
LF		 754/* called with wx_sem held */
755void rtllib_start_scan_syncro(struct rtllib_device *ieee, u8 is_mesh)
756{
9d92ece8 757 if (IS_DOT11D_ENABLE(ieee)) {
94a79942 758 if (IS_COUNTRY_IE_VALID(ieee))
94a79942 759 RESET_CIE_WATCHDOG(ieee);
94a79942 760 }
94a79942 761 ieee->sync_scan_hurryup = 0;
9d92ece8 762 if (ieee->softmac_features & IEEE_SOFTMAC_SCAN) {
94a79942 763 rtllib_softmac_scan_syncro(ieee, is_mesh);
9d92ece8 764 } else {
94a79942
LF		 765 if (ieee->rtllib_start_hw_scan)
766 ieee->rtllib_start_hw_scan(ieee->dev);
767 }
94a79942 768}
3b28499c 769EXPORT_SYMBOL(rtllib_start_scan_syncro);
94a79942
LF		 770
771inline struct sk_buff *rtllib_authentication_req(struct rtllib_network *beacon,
9d92ece8 772 struct rtllib_device *ieee, int challengelen, u8 *daddr)
94a79942
LF		 773{
774 struct sk_buff *skb;
775 struct rtllib_authentication *auth;
776 int len = 0;
3a6b70c3 777
9d92ece8
LF		 778 len = sizeof(struct rtllib_authentication) + challengelen +
779 ieee->tx_headroom + 4;
94a79942 780 skb = dev_alloc_skb(len);
94a79942 781
9d92ece8
LF		 782 if (!skb)
783 return NULL;
94a79942 784
94a79942
LF		 785 skb_reserve(skb, ieee->tx_headroom);
786
787 auth = (struct rtllib_authentication *)
788 skb_put(skb, sizeof(struct rtllib_authentication));
789
1830a6d8 790 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
9d92ece8 791 if (challengelen)
7fe30a7d 792 auth->header.frame_ctl |= cpu_to_le16(RTLLIB_FCTL_WEP);
94a79942 793
1830a6d8 794 auth->header.duration_id = cpu_to_le16(0x013a);
b57ceb19
MK		 795 ether_addr_copy(auth->header.addr1, beacon->bssid);
796 ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
797 ether_addr_copy(auth->header.addr3, beacon->bssid);
94a79942
LF		 798 if (ieee->auth_mode == 0)
799 auth->algorithm = WLAN_AUTH_OPEN;
800 else if (ieee->auth_mode == 1)
1830a6d8 801 auth->algorithm = cpu_to_le16(WLAN_AUTH_SHARED_KEY);
94a79942
LF		 802 else if (ieee->auth_mode == 2)
803 auth->algorithm = WLAN_AUTH_OPEN;
804 auth->transaction = cpu_to_le16(ieee->associate_seq);
805 ieee->associate_seq++;
806
807 auth->status = cpu_to_le16(WLAN_STATUS_SUCCESS);
808
809 return skb;
94a79942
LF		 810}
811
c7ddc288
MK		 812static struct sk_buff *rtllib_probe_resp(struct rtllib_device *ieee,
813 const u8 *dest)
94a79942
LF		 814{
815 u8 *tag;
816 int beacon_size;
817 struct rtllib_probe_response *beacon_buf;
818 struct sk_buff *skb = NULL;
819 int encrypt;
9d92ece8 820 int atim_len, erp_len;
32c44cb5 821 struct lib80211_crypt_data *crypt;
94a79942
LF		 822
823 char *ssid = ieee->current_network.ssid;
824 int ssid_len = ieee->current_network.ssid_len;
825 int rate_len = ieee->current_network.rates_len+2;
826 int rate_ex_len = ieee->current_network.rates_ex_len;
827 int wpa_ie_len = ieee->wpa_ie_len;
828 u8 erpinfo_content = 0;
829
9d92ece8 830 u8 *tmp_ht_cap_buf = NULL;
94a79942 831 u8 tmp_ht_cap_len = 0;
9d92ece8 832 u8 *tmp_ht_info_buf = NULL;
94a79942 833 u8 tmp_ht_info_len = 0;
7796d93e 834 struct rt_hi_throughput *pHTInfo = ieee->pHTInfo;
9d92ece8 835 u8 *tmp_generic_ie_buf = NULL;
94a79942
LF		 836 u8 tmp_generic_ie_len = 0;
837
838 if (rate_ex_len > 0)
9d92ece8 839 rate_ex_len += 2;
94a79942
LF		 840
841 if (ieee->current_network.capability & WLAN_CAPABILITY_IBSS)
842 atim_len = 4;
843 else
844 atim_len = 0;
845
9d92ece8
LF		 846 if ((ieee->current_network.mode == IEEE_G) ||
847 (ieee->current_network.mode == IEEE_N_24G &&
848 ieee->pHTInfo->bCurSuppCCK)) {
94a79942
LF		 849 erp_len = 3;
850 erpinfo_content = 0;
851 if (ieee->current_network.buseprotection)
852 erpinfo_content |= ERP_UseProtection;
9d92ece8 853 } else
94a79942
LF		 854 erp_len = 0;
855
0ddcf5fd 856 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
94a79942 857 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
3b148be0 858 ((0 == strcmp(crypt->ops->name, "R-WEP") || wpa_ie_len));
9d92ece8
LF		 859 if (ieee->pHTInfo->bCurrentHTSupport) {
860 tmp_ht_cap_buf = (u8 *) &(ieee->pHTInfo->SelfHTCap);
94a79942 861 tmp_ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
9d92ece8 862 tmp_ht_info_buf = (u8 *) &(ieee->pHTInfo->SelfHTInfo);
94a79942 863 tmp_ht_info_len = sizeof(ieee->pHTInfo->SelfHTInfo);
9d92ece8
LF		 864 HTConstructCapabilityElement(ieee, tmp_ht_cap_buf,
865 &tmp_ht_cap_len, encrypt, false);
866 HTConstructInfoElement(ieee, tmp_ht_info_buf, &tmp_ht_info_len,
867 encrypt);
94a79942 868
9d92ece8 869 if (pHTInfo->bRegRT2RTAggregation) {
94a79942 870 tmp_generic_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
9d92ece8
LF		 871 tmp_generic_ie_len =
872 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
873 HTConstructRT2RTAggElement(ieee, tmp_generic_ie_buf,
874 &tmp_generic_ie_len);
94a79942
LF		 875 }
876 }
877
878 beacon_size = sizeof(struct rtllib_probe_response)+2+
9d92ece8
LF		 879 ssid_len + 3 + rate_len + rate_ex_len + atim_len + erp_len
880 + wpa_ie_len + ieee->tx_headroom;
94a79942 881 skb = dev_alloc_skb(beacon_size);
94a79942
LF		 882 if (!skb)
883 return NULL;
884
94a79942
LF		 885 skb_reserve(skb, ieee->tx_headroom);
886
9d92ece8
LF		 887 beacon_buf = (struct rtllib_probe_response *) skb_put(skb,
888 (beacon_size - ieee->tx_headroom));
b57ceb19
MK		 889 ether_addr_copy(beacon_buf->header.addr1, dest);
890 ether_addr_copy(beacon_buf->header.addr2, ieee->dev->dev_addr);
891 ether_addr_copy(beacon_buf->header.addr3, ieee->current_network.bssid);
94a79942
LF		 892
893 beacon_buf->header.duration_id = 0;
894 beacon_buf->beacon_interval =
895 cpu_to_le16(ieee->current_network.beacon_interval);
896 beacon_buf->capability =
9d92ece8
LF		 897 cpu_to_le16(ieee->current_network.capability &
898 WLAN_CAPABILITY_IBSS);
94a79942 899 beacon_buf->capability |=
9d92ece8
LF		 900 cpu_to_le16(ieee->current_network.capability &
901 WLAN_CAPABILITY_SHORT_PREAMBLE);
94a79942 902
9d92ece8
LF		 903 if (ieee->short_slot && (ieee->current_network.capability &
904 WLAN_CAPABILITY_SHORT_SLOT_TIME))
7fe30a7d
RK		 905 beacon_buf->capability |=
906 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
94a79942 907
0ddcf5fd 908 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
94a79942
LF		 909 if (encrypt)
910 beacon_buf->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
911
912
913 beacon_buf->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_PROBE_RESP);
914 beacon_buf->info_element[0].id = MFIE_TYPE_SSID;
915 beacon_buf->info_element[0].len = ssid_len;
916
9d92ece8 917 tag = (u8 *) beacon_buf->info_element[0].data;
94a79942
LF		 918
919 memcpy(tag, ssid, ssid_len);
920
921 tag += ssid_len;
922
923 *(tag++) = MFIE_TYPE_RATES;
924 *(tag++) = rate_len-2;
9d92ece8
LF		 925 memcpy(tag, ieee->current_network.rates, rate_len-2);
926 tag += rate_len-2;
94a79942
LF		 927
928 *(tag++) = MFIE_TYPE_DS_SET;
929 *(tag++) = 1;
930 *(tag++) = ieee->current_network.channel;
931
9d92ece8
LF		 932 if (atim_len) {
933 u16 val16;
94a79942
LF		 934 *(tag++) = MFIE_TYPE_IBSS_SET;
935 *(tag++) = 2;
1830a6d8 936 val16 = ieee->current_network.atim_window;
94a79942 937 memcpy((u8 *)tag, (u8 *)&val16, 2);
9d92ece8 938 tag += 2;
94a79942
LF		 939 }
940
9d92ece8 941 if (erp_len) {
94a79942
LF		 942 *(tag++) = MFIE_TYPE_ERP;
943 *(tag++) = 1;
944 *(tag++) = erpinfo_content;
945 }
9d92ece8 946 if (rate_ex_len) {
94a79942
LF		 947 *(tag++) = MFIE_TYPE_RATES_EX;
948 *(tag++) = rate_ex_len-2;
9d92ece8
LF		 949 memcpy(tag, ieee->current_network.rates_ex, rate_ex_len-2);
950 tag += rate_ex_len-2;
94a79942
LF		 951 }
952
9d92ece8 953 if (wpa_ie_len) {
94a79942 954 if (ieee->iw_mode == IW_MODE_ADHOC)
94a79942 955 memcpy(&ieee->wpa_ie[14], &ieee->wpa_ie[8], 4);
94a79942
LF		 956 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
957 tag += ieee->wpa_ie_len;
958 }
94a79942
LF		 959 return skb;
960}
961
ec0dc6be 962static struct sk_buff *rtllib_assoc_resp(struct rtllib_device *ieee, u8 *dest)
94a79942
LF		 963{
964 struct sk_buff *skb;
9d92ece8 965 u8 *tag;
94a79942 966
32c44cb5 967 struct lib80211_crypt_data *crypt;
94a79942
LF		 968 struct rtllib_assoc_response_frame *assoc;
969 short encrypt;
970
971 unsigned int rate_len = rtllib_MFIE_rate_len(ieee);
9d92ece8
LF		 972 int len = sizeof(struct rtllib_assoc_response_frame) + rate_len +
973 ieee->tx_headroom;
94a79942 974
94a79942 975 skb = dev_alloc_skb(len);
94a79942
LF		 976
977 if (!skb)
978 return NULL;
979
94a79942
LF		 980 skb_reserve(skb, ieee->tx_headroom);
981
982 assoc = (struct rtllib_assoc_response_frame *)
9d92ece8 983 skb_put(skb, sizeof(struct rtllib_assoc_response_frame));
94a79942
LF		 984
985 assoc->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP);
b57ceb19
MK		 986 ether_addr_copy(assoc->header.addr1, dest);
987 ether_addr_copy(assoc->header.addr3, ieee->dev->dev_addr);
988 ether_addr_copy(assoc->header.addr2, ieee->dev->dev_addr);
94a79942
LF		 989 assoc->capability = cpu_to_le16(ieee->iw_mode == IW_MODE_MASTER ?
990 WLAN_CAPABILITY_ESS : WLAN_CAPABILITY_IBSS);
991
992
993 if (ieee->short_slot)
9d92ece8
LF		 994 assoc->capability |=
995 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
94a79942
LF		 996
997 if (ieee->host_encrypt)
0ddcf5fd 998 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
94a79942
LF		 999 else
1000 crypt = NULL;
1001
9d92ece8 1002 encrypt = (crypt && crypt->ops);
94a79942
LF		 1003
1004 if (encrypt)
1005 assoc->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1006
1007 assoc->status = 0;
1008 assoc->aid = cpu_to_le16(ieee->assoc_id);
1009 if (ieee->assoc_id == 0x2007)
9d92ece8 1010 ieee->assoc_id = 0;
94a79942
LF		 1011 else
1012 ieee->assoc_id++;
1013
9d92ece8 1014 tag = (u8 *) skb_put(skb, rate_len);
94a79942
LF		 1015 rtllib_MFIE_Brate(ieee, &tag);
1016 rtllib_MFIE_Grate(ieee, &tag);
1017
1018 return skb;
1019}
1020
ec0dc6be 1021static struct sk_buff *rtllib_auth_resp(struct rtllib_device *ieee, int status,
9d92ece8 1022 u8 *dest)
94a79942
LF		 1023{
1024 struct sk_buff *skb = NULL;
1025 struct rtllib_authentication *auth;
9d92ece8 1026 int len = ieee->tx_headroom + sizeof(struct rtllib_authentication) + 1;
3a6b70c3 1027
94a79942 1028 skb = dev_alloc_skb(len);
94a79942
LF		 1029 if (!skb)
1030 return NULL;
1031
1032 skb->len = sizeof(struct rtllib_authentication);
1033
94a79942
LF		 1034 skb_reserve(skb, ieee->tx_headroom);
1035
1036 auth = (struct rtllib_authentication *)
1037 skb_put(skb, sizeof(struct rtllib_authentication));
1038
1039 auth->status = cpu_to_le16(status);
1040 auth->transaction = cpu_to_le16(2);
1041 auth->algorithm = cpu_to_le16(WLAN_AUTH_OPEN);
1042
b57ceb19
MK		 1043 ether_addr_copy(auth->header.addr3, ieee->dev->dev_addr);
1044 ether_addr_copy(auth->header.addr2, ieee->dev->dev_addr);
1045 ether_addr_copy(auth->header.addr1, dest);
94a79942
LF		 1046 auth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_AUTH);
1047 return skb;
1048
1049
1050}
1051
ec0dc6be 1052static struct sk_buff *rtllib_null_func(struct rtllib_device *ieee, short pwr)
94a79942
LF		 1053{
1054 struct sk_buff *skb;
9d92ece8 1055 struct rtllib_hdr_3addr *hdr;
94a79942 1056
94a79942 1057 skb = dev_alloc_skb(sizeof(struct rtllib_hdr_3addr)+ieee->tx_headroom);
94a79942
LF		 1058 if (!skb)
1059 return NULL;
1060
94a79942
LF		 1061 skb_reserve(skb, ieee->tx_headroom);
1062
9d92ece8
LF		 1063 hdr = (struct rtllib_hdr_3addr *)skb_put(skb,
1064 sizeof(struct rtllib_hdr_3addr));
94a79942 1065
b57ceb19
MK		 1066 ether_addr_copy(hdr->addr1, ieee->current_network.bssid);
1067 ether_addr_copy(hdr->addr2, ieee->dev->dev_addr);
1068 ether_addr_copy(hdr->addr3, ieee->current_network.bssid);
94a79942
LF		 1069
1070 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_DATA |
1071 RTLLIB_STYPE_NULLFUNC | RTLLIB_FCTL_TODS |
9d92ece8 1072 (pwr ? RTLLIB_FCTL_PM : 0));
94a79942
LF		 1073
1074 return skb;
1075
1076
1077}
1078
ec0dc6be 1079static struct sk_buff *rtllib_pspoll_func(struct rtllib_device *ieee)
94a79942
LF		 1080{
1081 struct sk_buff *skb;
9d92ece8 1082 struct rtllib_pspoll_hdr *hdr;
94a79942 1083
94a79942 1084 skb = dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr)+ieee->tx_headroom);
94a79942
LF		 1085 if (!skb)
1086 return NULL;
1087
94a79942
LF		 1088 skb_reserve(skb, ieee->tx_headroom);
1089
9d92ece8
LF		 1090 hdr = (struct rtllib_pspoll_hdr *)skb_put(skb,
1091 sizeof(struct rtllib_pspoll_hdr));
94a79942 1092
b57ceb19
MK		 1093 ether_addr_copy(hdr->bssid, ieee->current_network.bssid);
1094 ether_addr_copy(hdr->ta, ieee->dev->dev_addr);
94a79942
LF		 1095
1096 hdr->aid = cpu_to_le16(ieee->assoc_id | 0xc000);
9d92ece8
LF		 1097 hdr->frame_ctl = cpu_to_le16(RTLLIB_FTYPE_CTL | RTLLIB_STYPE_PSPOLL |
1098 RTLLIB_FCTL_PM);
94a79942
LF		 1099
1100 return skb;
1101
1102}
1103
ec0dc6be 1104static void rtllib_resp_to_assoc_rq(struct rtllib_device *ieee, u8 *dest)
94a79942
LF		 1105{
1106 struct sk_buff *buf = rtllib_assoc_resp(ieee, dest);
1107
1108 if (buf)
1109 softmac_mgmt_xmit(buf, ieee);
1110}
1111
1112
ec0dc6be 1113static void rtllib_resp_to_auth(struct rtllib_device *ieee, int s, u8 *dest)
94a79942
LF		 1114{
1115 struct sk_buff *buf = rtllib_auth_resp(ieee, s, dest);
1116
1117 if (buf)
1118 softmac_mgmt_xmit(buf, ieee);
1119}
1120
1121
ec0dc6be 1122static void rtllib_resp_to_probe(struct rtllib_device *ieee, u8 *dest)
94a79942 1123{
94a79942 1124 struct sk_buff *buf = rtllib_probe_resp(ieee, dest);
3a6b70c3 1125
94a79942
LF		 1126 if (buf)
1127 softmac_mgmt_xmit(buf, ieee);
1128}
1129
1130
1131inline int SecIsInPMKIDList(struct rtllib_device *ieee, u8 *bssid)
1132{
1133 int i = 0;
1134
9d92ece8
LF		 1135 do {
1136 if ((ieee->PMKIDList[i].bUsed) &&
1137 (memcmp(ieee->PMKIDList[i].Bssid, bssid, ETH_ALEN) == 0))
94a79942 1138 break;
92db2a27 1139 i++;
94a79942
LF		 1140 } while (i < NUM_PMKID_CACHE);
1141
1142 if (i == NUM_PMKID_CACHE)
94a79942 1143 i = -1;
9d92ece8 1144 return i;
94a79942
LF		 1145}
1146
9d92ece8
LF		 1147inline struct sk_buff *rtllib_association_req(struct rtllib_network *beacon,
1148 struct rtllib_device *ieee)
94a79942
LF		 1149{
1150 struct sk_buff *skb;
94a79942
LF		 1151 struct rtllib_assoc_request_frame *hdr;
1152 u8 *tag, *ies;
1153 int i;
9d92ece8
LF		 1154 u8 *ht_cap_buf = NULL;
1155 u8 ht_cap_len = 0;
1156 u8 *realtek_ie_buf = NULL;
1157 u8 realtek_ie_len = 0;
1158 int wpa_ie_len = ieee->wpa_ie_len;
94a79942 1159 int wps_ie_len = ieee->wps_ie_len;
9d92ece8
LF		 1160 unsigned int ckip_ie_len = 0;
1161 unsigned int ccxrm_ie_len = 0;
1162 unsigned int cxvernum_ie_len = 0;
32c44cb5 1163 struct lib80211_crypt_data *crypt;
94a79942
LF		 1164 int encrypt;
1165 int PMKCacheIdx;
1166
9d92ece8
LF		 1167 unsigned int rate_len = (beacon->rates_len ?
1168 (beacon->rates_len + 2) : 0) +
1169 (beacon->rates_ex_len ? (beacon->rates_ex_len) +
1170 2 : 0);
94a79942 1171
9d92ece8
LF		 1172 unsigned int wmm_info_len = beacon->qos_data.supported ? 9 : 0;
1173 unsigned int turbo_info_len = beacon->Turbo_Enable ? 9 : 0;
94a79942
LF		 1174
1175 int len = 0;
3a6b70c3 1176
0ddcf5fd 1177 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
9d92ece8
LF		 1178 if (crypt != NULL)
1179 encrypt = ieee->host_encrypt && crypt && crypt->ops &&
3b148be0 1180 ((0 == strcmp(crypt->ops->name, "R-WEP") ||
9d92ece8
LF		 1181 wpa_ie_len));
1182 else
94a79942 1183 encrypt = 0;
94a79942 1184
9d92ece8
LF		 1185 if ((ieee->rtllib_ap_sec_type &&
1186 (ieee->rtllib_ap_sec_type(ieee) & SEC_ALG_TKIP)) ||
4bb01423 1187 ieee->bForcedBgMode) {
94a79942
LF		 1188 ieee->pHTInfo->bEnableHT = 0;
1189 ieee->mode = WIRELESS_MODE_G;
1190 }
1191
9d92ece8
LF		 1192 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1193 ht_cap_buf = (u8 *)&(ieee->pHTInfo->SelfHTCap);
94a79942 1194 ht_cap_len = sizeof(ieee->pHTInfo->SelfHTCap);
9d92ece8
LF		 1195 HTConstructCapabilityElement(ieee, ht_cap_buf, &ht_cap_len,
1196 encrypt, true);
94a79942
LF		 1197 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
1198 realtek_ie_buf = ieee->pHTInfo->szRT2RTAggBuffer;
9d92ece8
LF		 1199 realtek_ie_len =
1200 sizeof(ieee->pHTInfo->szRT2RTAggBuffer);
1201 HTConstructRT2RTAggElement(ieee, realtek_ie_buf,
1202 &realtek_ie_len);
94a79942
LF		 1203 }
1204 }
1205
1206 if (beacon->bCkipSupported)
94a79942 1207 ckip_ie_len = 30+2;
94a79942 1208 if (beacon->bCcxRmEnable)
94a79942 1209 ccxrm_ie_len = 6+2;
9d92ece8 1210 if (beacon->BssCcxVerNumber >= 2)
94a79942 1211 cxvernum_ie_len = 5+2;
94a79942
LF		 1212
1213 PMKCacheIdx = SecIsInPMKIDList(ieee, ieee->current_network.bssid);
9d92ece8 1214 if (PMKCacheIdx >= 0) {
94a79942 1215 wpa_ie_len += 18;
d69d2054
MK		 1216 netdev_info(ieee->dev, "[PMK cache]: WPA2 IE length: %x\n",
1217 wpa_ie_len);
94a79942 1218 }
9d92ece8 1219 len = sizeof(struct rtllib_assoc_request_frame) + 2
94a79942
LF		 1220 + beacon->ssid_len
1221 + rate_len
1222 + wpa_ie_len
1223 + wps_ie_len
1224 + wmm_info_len
1225 + turbo_info_len
9d92ece8 1226 + ht_cap_len
94a79942
LF		 1227 + realtek_ie_len
1228 + ckip_ie_len
1229 + ccxrm_ie_len
1230 + cxvernum_ie_len
1231 + ieee->tx_headroom;
1232
94a79942 1233 skb = dev_alloc_skb(len);
94a79942
LF		 1234
1235 if (!skb)
1236 return NULL;
1237
94a79942
LF		 1238 skb_reserve(skb, ieee->tx_headroom);
1239
1240 hdr = (struct rtllib_assoc_request_frame *)
9d92ece8 1241 skb_put(skb, sizeof(struct rtllib_assoc_request_frame) + 2);
94a79942
LF		 1242
1243
fa70ae09 1244 hdr->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_ASSOC_REQ);
1830a6d8 1245 hdr->header.duration_id = cpu_to_le16(37);
b57ceb19
MK		 1246 ether_addr_copy(hdr->header.addr1, beacon->bssid);
1247 ether_addr_copy(hdr->header.addr2, ieee->dev->dev_addr);
1248 ether_addr_copy(hdr->header.addr3, beacon->bssid);
94a79942 1249
b57ceb19 1250 ether_addr_copy(ieee->ap_mac_addr, beacon->bssid);
94a79942
LF		 1251
1252 hdr->capability = cpu_to_le16(WLAN_CAPABILITY_ESS);
9d92ece8 1253 if (beacon->capability & WLAN_CAPABILITY_PRIVACY)
94a79942
LF		 1254 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_PRIVACY);
1255
1256 if (beacon->capability & WLAN_CAPABILITY_SHORT_PREAMBLE)
1257 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE);
1258
9d92ece8
LF		 1259 if (ieee->short_slot &&
1260 (beacon->capability&WLAN_CAPABILITY_SHORT_SLOT_TIME))
94a79942
LF		 1261 hdr->capability |= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME);
1262
1263
1830a6d8 1264 hdr->listen_interval = cpu_to_le16(beacon->listen_interval);
94a79942
LF		 1265
1266 hdr->info_element[0].id = MFIE_TYPE_SSID;
1267
1268 hdr->info_element[0].len = beacon->ssid_len;
1269 tag = skb_put(skb, beacon->ssid_len);
1270 memcpy(tag, beacon->ssid, beacon->ssid_len);
1271
1272 tag = skb_put(skb, rate_len);
1273
9d92ece8 1274 if (beacon->rates_len) {
94a79942
LF		 1275 *tag++ = MFIE_TYPE_RATES;
1276 *tag++ = beacon->rates_len;
9d92ece8 1277 for (i = 0; i < beacon->rates_len; i++)
94a79942 1278 *tag++ = beacon->rates[i];
94a79942
LF		 1279 }
1280
9d92ece8 1281 if (beacon->rates_ex_len) {
94a79942
LF		 1282 *tag++ = MFIE_TYPE_RATES_EX;
1283 *tag++ = beacon->rates_ex_len;
9d92ece8 1284 for (i = 0; i < beacon->rates_ex_len; i++)
94a79942 1285 *tag++ = beacon->rates_ex[i];
94a79942
LF		 1286 }
1287
9d92ece8 1288 if (beacon->bCkipSupported) {
16fc54ee 1289 static const u8 AironetIeOui[] = {0x00, 0x01, 0x66};
94a79942 1290 u8 CcxAironetBuf[30];
8310b6c0 1291 struct octet_string osCcxAironetIE;
94a79942 1292
9d92ece8 1293 memset(CcxAironetBuf, 0, 30);
94a79942
LF		 1294 osCcxAironetIE.Octet = CcxAironetBuf;
1295 osCcxAironetIE.Length = sizeof(CcxAironetBuf);
9d92ece8
LF		 1296 memcpy(osCcxAironetIE.Octet, AironetIeOui,
1297 sizeof(AironetIeOui));
94a79942 1298
9d92ece8
LF		 1299 osCcxAironetIE.Octet[IE_CISCO_FLAG_POSITION] |=
1300 (SUPPORT_CKIP_PK|SUPPORT_CKIP_MIC);
94a79942
LF		 1301 tag = skb_put(skb, ckip_ie_len);
1302 *tag++ = MFIE_TYPE_AIRONET;
1303 *tag++ = osCcxAironetIE.Length;
9d92ece8 1304 memcpy(tag, osCcxAironetIE.Octet, osCcxAironetIE.Length);
94a79942
LF		 1305 tag += osCcxAironetIE.Length;
1306 }
1307
9d92ece8 1308 if (beacon->bCcxRmEnable) {
16fc54ee
BW		 1309 static const u8 CcxRmCapBuf[] = {0x00, 0x40, 0x96, 0x01, 0x01,
1310 0x00};
8310b6c0 1311 struct octet_string osCcxRmCap;
94a79942 1312
16fc54ee 1313 osCcxRmCap.Octet = (u8 *) CcxRmCapBuf;
94a79942 1314 osCcxRmCap.Length = sizeof(CcxRmCapBuf);
9d92ece8 1315 tag = skb_put(skb, ccxrm_ie_len);
94a79942
LF		 1316 *tag++ = MFIE_TYPE_GENERIC;
1317 *tag++ = osCcxRmCap.Length;
9d92ece8 1318 memcpy(tag, osCcxRmCap.Octet, osCcxRmCap.Length);
94a79942
LF		 1319 tag += osCcxRmCap.Length;
1320 }
1321
9d92ece8
LF		 1322 if (beacon->BssCcxVerNumber >= 2) {
1323 u8 CcxVerNumBuf[] = {0x00, 0x40, 0x96, 0x03, 0x00};
8310b6c0 1324 struct octet_string osCcxVerNum;
3a6b70c3 1325
94a79942
LF		 1326 CcxVerNumBuf[4] = beacon->BssCcxVerNumber;
1327 osCcxVerNum.Octet = CcxVerNumBuf;
1328 osCcxVerNum.Length = sizeof(CcxVerNumBuf);
9d92ece8 1329 tag = skb_put(skb, cxvernum_ie_len);
94a79942
LF		 1330 *tag++ = MFIE_TYPE_GENERIC;
1331 *tag++ = osCcxVerNum.Length;
9d92ece8 1332 memcpy(tag, osCcxVerNum.Octet, osCcxVerNum.Length);
94a79942
LF		 1333 tag += osCcxVerNum.Length;
1334 }
9d92ece8
LF		 1335 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1336 if (ieee->pHTInfo->ePeerHTSpecVer != HT_SPEC_VER_EWC) {
94a79942
LF		 1337 tag = skb_put(skb, ht_cap_len);
1338 *tag++ = MFIE_TYPE_HT_CAP;
1339 *tag++ = ht_cap_len - 2;
9d92ece8
LF		 1340 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1341 tag += ht_cap_len - 2;
94a79942
LF		 1342 }
1343 }
1344
9d92ece8 1345 if (wpa_ie_len) {
94a79942
LF		 1346 tag = skb_put(skb, ieee->wpa_ie_len);
1347 memcpy(tag, ieee->wpa_ie, ieee->wpa_ie_len);
1348
9d92ece8 1349 if (PMKCacheIdx >= 0) {
94a79942
LF		 1350 tag = skb_put(skb, 18);
1351 *tag = 1;
1352 *(tag + 1) = 0;
9d92ece8
LF		 1353 memcpy((tag + 2), &ieee->PMKIDList[PMKCacheIdx].PMKID,
1354 16);
94a79942
LF		 1355 }
1356 }
1357 if (wmm_info_len) {
9d92ece8 1358 tag = skb_put(skb, wmm_info_len);
94a79942
LF		 1359 rtllib_WMM_Info(ieee, &tag);
1360 }
1361
1362 if (wps_ie_len && ieee->wps_ie) {
1363 tag = skb_put(skb, wps_ie_len);
1364 memcpy(tag, ieee->wps_ie, wps_ie_len);
1365 }
1366
9d92ece8
LF		 1367 tag = skb_put(skb, turbo_info_len);
1368 if (turbo_info_len)
1369 rtllib_TURBO_Info(ieee, &tag);
94a79942 1370
9d92ece8
LF		 1371 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
1372 if (ieee->pHTInfo->ePeerHTSpecVer == HT_SPEC_VER_EWC) {
94a79942
LF		 1373 tag = skb_put(skb, ht_cap_len);
1374 *tag++ = MFIE_TYPE_GENERIC;
1375 *tag++ = ht_cap_len - 2;
9d92ece8
LF		 1376 memcpy(tag, ht_cap_buf, ht_cap_len - 2);
1377 tag += ht_cap_len - 2;
94a79942
LF		 1378 }
1379
9d92ece8 1380 if (ieee->pHTInfo->bCurrentRT2RTAggregation) {
94a79942
LF		 1381 tag = skb_put(skb, realtek_ie_len);
1382 *tag++ = MFIE_TYPE_GENERIC;
1383 *tag++ = realtek_ie_len - 2;
9d92ece8 1384 memcpy(tag, realtek_ie_buf, realtek_ie_len - 2);
94a79942
LF		 1385 }
1386 }
1387
9d92ece8
LF		 1388 kfree(ieee->assocreq_ies);
1389 ieee->assocreq_ies = NULL;
94a79942
LF		 1390 ies = &(hdr->info_element[0].id);
1391 ieee->assocreq_ies_len = (skb->data + skb->len) - ies;
1392 ieee->assocreq_ies = kmalloc(ieee->assocreq_ies_len, GFP_ATOMIC);
1393 if (ieee->assocreq_ies)
1394 memcpy(ieee->assocreq_ies, ies, ieee->assocreq_ies_len);
9d92ece8 1395 else {
d69d2054
MK		 1396 netdev_info(ieee->dev,
1397 "%s()Warning: can't alloc memory for assocreq_ies\n",
1398 __func__);
94a79942
LF		 1399 ieee->assocreq_ies_len = 0;
1400 }
94a79942
LF		 1401 return skb;
1402}
1403
1404void rtllib_associate_abort(struct rtllib_device *ieee)
1405{
94a79942 1406 unsigned long flags;
3a6b70c3 1407
94a79942
LF		 1408 spin_lock_irqsave(&ieee->lock, flags);
1409
1410 ieee->associate_seq++;
1411
1412 /* don't scan, and avoid to have the RX path possibily
1413 * try again to associate. Even do not react to AUTH or
1414 * ASSOC response. Just wait for the retry wq to be scheduled.
1415 * Here we will check if there are good nets to associate
1416 * with, so we retry or just get back to NO_LINK and scanning
1417 */
9d92ece8 1418 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING) {
e9fea2ec 1419 netdev_dbg(ieee->dev, "Authentication failed\n");
94a79942 1420 ieee->softmac_stats.no_auth_rs++;
9d92ece8 1421 } else {
e9fea2ec 1422 netdev_dbg(ieee->dev, "Association failed\n");
94a79942
LF		 1423 ieee->softmac_stats.no_ass_rs++;
1424 }
1425
1426 ieee->state = RTLLIB_ASSOCIATING_RETRY;
1427
9d92ece8
LF		 1428 queue_delayed_work_rsl(ieee->wq, &ieee->associate_retry_wq,
1429 RTLLIB_SOFTMAC_ASSOC_RETRY_TIME);
94a79942
LF		 1430
1431 spin_unlock_irqrestore(&ieee->lock, flags);
1432}
1433
ec0dc6be 1434static void rtllib_associate_abort_cb(unsigned long dev)
94a79942
LF		 1435{
1436 rtllib_associate_abort((struct rtllib_device *) dev);
1437}
1438
a0711c4d 1439static void rtllib_associate_step1(struct rtllib_device *ieee, u8 *daddr)
94a79942
LF		 1440{
1441 struct rtllib_network *beacon = &ieee->current_network;
1442 struct sk_buff *skb;
1443
e9fea2ec 1444 netdev_dbg(ieee->dev, "Stopping scan\n");
94a79942
LF		 1445
1446 ieee->softmac_stats.tx_auth_rq++;
1447
9d92ece8 1448 skb = rtllib_authentication_req(beacon, ieee, 0, daddr);
94a79942
LF		 1449
1450 if (!skb)
1451 rtllib_associate_abort(ieee);
9d92ece8 1452 else {
dc986e3e 1453 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATING;
e9fea2ec 1454 netdev_dbg(ieee->dev, "Sending authentication request\n");
94a79942 1455 softmac_mgmt_xmit(skb, ieee);
9d92ece8 1456 if (!timer_pending(&ieee->associate_timer)) {
94a79942
LF		 1457 ieee->associate_timer.expires = jiffies + (HZ / 2);
1458 add_timer(&ieee->associate_timer);
1459 }
1460 }
1461}
1462
35e33b04
MK		 1463static void rtllib_auth_challenge(struct rtllib_device *ieee, u8 *challenge,
1464 int chlen)
94a79942
LF		 1465{
1466 u8 *c;
1467 struct sk_buff *skb;
1468 struct rtllib_network *beacon = &ieee->current_network;
1469
1470 ieee->associate_seq++;
1471 ieee->softmac_stats.tx_auth_rq++;
1472
9d92ece8 1473 skb = rtllib_authentication_req(beacon, ieee, chlen + 2, beacon->bssid);
94a79942
LF		 1474
1475 if (!skb)
1476 rtllib_associate_abort(ieee);
9d92ece8 1477 else {
94a79942
LF		 1478 c = skb_put(skb, chlen+2);
1479 *(c++) = MFIE_TYPE_CHALLENGE;
1480 *(c++) = chlen;
1481 memcpy(c, challenge, chlen);
1482
e9fea2ec
MK		 1483 netdev_dbg(ieee->dev,
1484 "Sending authentication challenge response\n");
94a79942 1485
9d92ece8
LF		 1486 rtllib_encrypt_fragment(ieee, skb,
1487 sizeof(struct rtllib_hdr_3addr));
94a79942
LF		 1488
1489 softmac_mgmt_xmit(skb, ieee);
1490 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1491 }
1492 kfree(challenge);
1493}
1494
ec0dc6be 1495static void rtllib_associate_step2(struct rtllib_device *ieee)
94a79942 1496{
9d92ece8 1497 struct sk_buff *skb;
94a79942
LF		 1498 struct rtllib_network *beacon = &ieee->current_network;
1499
1500 del_timer_sync(&ieee->associate_timer);
1501
e9fea2ec 1502 netdev_dbg(ieee->dev, "Sending association request\n");
94a79942
LF		 1503
1504 ieee->softmac_stats.tx_ass_rq++;
9d92ece8 1505 skb = rtllib_association_req(beacon, ieee);
94a79942
LF		 1506 if (!skb)
1507 rtllib_associate_abort(ieee);
9d92ece8 1508 else {
94a79942
LF		 1509 softmac_mgmt_xmit(skb, ieee);
1510 mod_timer(&ieee->associate_timer, jiffies + (HZ/2));
1511 }
1512}
1513
1514#define CANCELLED 2
ec0dc6be 1515static void rtllib_associate_complete_wq(void *data)
94a79942 1516{
9d92ece8
LF		 1517 struct rtllib_device *ieee = (struct rtllib_device *)
1518 container_of_work_rsl(data,
1519 struct rtllib_device,
1520 associate_complete_wq);
1521 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1522 (&(ieee->PowerSaveControl));
d69d2054 1523 netdev_info(ieee->dev, "Associated successfully\n");
4bb01423 1524 if (!ieee->is_silent_reset) {
d69d2054 1525 netdev_info(ieee->dev, "normal associate\n");
9d92ece8
LF		 1526 notify_wx_assoc_event(ieee);
1527 }
94a79942
LF		 1528
1529 netif_carrier_on(ieee->dev);
1530 ieee->is_roaming = false;
1531 if (rtllib_is_54g(&ieee->current_network) &&
9d92ece8 1532 (ieee->modulation & RTLLIB_OFDM_MODULATION)) {
94a79942 1533 ieee->rate = 108;
d69d2054 1534 netdev_info(ieee->dev, "Using G rates:%d\n", ieee->rate);
9d92ece8 1535 } else {
94a79942
LF		 1536 ieee->rate = 22;
1537 ieee->SetWirelessMode(ieee->dev, IEEE_B);
d69d2054 1538 netdev_info(ieee->dev, "Using B rates:%d\n", ieee->rate);
94a79942 1539 }
9d92ece8 1540 if (ieee->pHTInfo->bCurrentHTSupport && ieee->pHTInfo->bEnableHT) {
d69d2054 1541 netdev_info(ieee->dev, "Successfully associated, ht enabled\n");
94a79942
LF		 1542 HTOnAssocRsp(ieee);
1543 } else {
d69d2054
MK		 1544 netdev_info(ieee->dev,
1545 "Successfully associated, ht not enabled(%d, %d)\n",
1546 ieee->pHTInfo->bCurrentHTSupport,
1547 ieee->pHTInfo->bEnableHT);
94a79942
LF		 1548 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1549 }
9d92ece8
LF		 1550 ieee->LinkDetectInfo.SlotNum = 2 * (1 +
1551 ieee->current_network.beacon_interval /
1552 500);
1553 if (ieee->LinkDetectInfo.NumRecvBcnInPeriod == 0 ||
1554 ieee->LinkDetectInfo.NumRecvDataInPeriod == 0) {
94a79942 1555 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 1;
9d92ece8 1556 ieee->LinkDetectInfo.NumRecvDataInPeriod = 1;
94a79942
LF		 1557 }
1558 pPSC->LpsIdleCount = 0;
1559 ieee->link_change(ieee->dev);
1560
4bb01423 1561 if (ieee->is_silent_reset) {
d69d2054 1562 netdev_info(ieee->dev, "silent reset associate\n");
014e4c27 1563 ieee->is_silent_reset = false;
9d92ece8 1564 }
94a79942
LF		 1565
1566 if (ieee->data_hard_resume)
1567 ieee->data_hard_resume(ieee->dev);
1568
94a79942
LF		 1569}
1570
1571static void rtllib_sta_send_associnfo(struct rtllib_device *ieee)
1572{
94a79942
LF		 1573}
1574
ec0dc6be 1575static void rtllib_associate_complete(struct rtllib_device *ieee)
94a79942
LF		 1576{
1577 del_timer_sync(&ieee->associate_timer);
1578
1579 ieee->state = RTLLIB_LINKED;
1580 rtllib_sta_send_associnfo(ieee);
1581
1582 queue_work_rsl(ieee->wq, &ieee->associate_complete_wq);
1583}
1584
ec0dc6be 1585static void rtllib_associate_procedure_wq(void *data)
94a79942 1586{
9d92ece8
LF		 1587 struct rtllib_device *ieee = container_of_dwork_rsl(data,
1588 struct rtllib_device,
1589 associate_procedure_wq);
94a79942
LF		 1590 rtllib_stop_scan_syncro(ieee);
1591 if (ieee->rtllib_ips_leave != NULL)
1592 ieee->rtllib_ips_leave(ieee->dev);
1593 down(&ieee->wx_sem);
1594
1595 if (ieee->data_hard_stop)
1596 ieee->data_hard_stop(ieee->dev);
1597
1598 rtllib_stop_scan(ieee);
9d92ece8
LF		 1599 RT_TRACE(COMP_DBG, "===>%s(), chan:%d\n", __func__,
1600 ieee->current_network.channel);
94a79942 1601 HTSetConnectBwMode(ieee, HT_CHANNEL_WIDTH_20, HT_EXTCHNL_OFFSET_NO_EXT);
9d92ece8 1602 if (ieee->eRFPowerState == eRfOff) {
0822339b
MK		 1603 RT_TRACE(COMP_DBG,
1604 "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",
1605 __func__);
94a79942
LF		 1606 if (ieee->rtllib_ips_leave_wq != NULL)
1607 ieee->rtllib_ips_leave_wq(ieee->dev);
1608 up(&ieee->wx_sem);
1609 return;
1610 }
1611 ieee->associate_seq = 1;
1612
1613 rtllib_associate_step1(ieee, ieee->current_network.bssid);
1614
1615 up(&ieee->wx_sem);
1616}
1617
9d92ece8
LF		 1618inline void rtllib_softmac_new_net(struct rtllib_device *ieee,
1619 struct rtllib_network *net)
94a79942 1620{
9d92ece8 1621 u8 tmp_ssid[IW_ESSID_MAX_SIZE + 1];
94a79942
LF		 1622 int tmp_ssid_len = 0;
1623
9d92ece8 1624 short apset, ssidset, ssidbroad, apmatch, ssidmatch;
94a79942
LF		 1625
1626 /* we are interested in new new only if we are not associated
1627 * and we are not associating / authenticating
1628 */
1629 if (ieee->state != RTLLIB_NOLINK)
1630 return;
1631
9d92ece8
LF		 1632 if ((ieee->iw_mode == IW_MODE_INFRA) && !(net->capability &
1633 WLAN_CAPABILITY_ESS))
94a79942
LF		 1634 return;
1635
9d92ece8
LF		 1636 if ((ieee->iw_mode == IW_MODE_ADHOC) && !(net->capability &
1637 WLAN_CAPABILITY_IBSS))
94a79942
LF		 1638 return;
1639
9d92ece8
LF		 1640 if ((ieee->iw_mode == IW_MODE_ADHOC) &&
1641 (net->channel > ieee->ibss_maxjoin_chal))
94a79942 1642 return;
9d92ece8 1643 if (ieee->iw_mode == IW_MODE_INFRA || ieee->iw_mode == IW_MODE_ADHOC) {
94a79942
LF		 1644 /* if the user specified the AP MAC, we need also the essid
1645 * This could be obtained by beacons or, if the network does not
1646 * broadcast it, it can be put manually.
1647 */
1648 apset = ieee->wap_set;
1649 ssidset = ieee->ssid_set;
9d92ece8
LF		 1650 ssidbroad = !(net->ssid_len == 0 || net->ssid[0] == '\0');
1651 apmatch = (memcmp(ieee->current_network.bssid, net->bssid,
1652 ETH_ALEN) == 0);
1653 if (!ssidbroad) {
1654 ssidmatch = (ieee->current_network.ssid_len ==
1655 net->hidden_ssid_len) &&
1656 (!strncmp(ieee->current_network.ssid,
1657 net->hidden_ssid, net->hidden_ssid_len));
1658 if (net->hidden_ssid_len > 0) {
1659 strncpy(net->ssid, net->hidden_ssid,
1660 net->hidden_ssid_len);
1661 net->ssid_len = net->hidden_ssid_len;
1662 ssidbroad = 1;
1663 }
1664 } else
1665 ssidmatch =
1666 (ieee->current_network.ssid_len == net->ssid_len) &&
1667 (!strncmp(ieee->current_network.ssid, net->ssid,
1668 net->ssid_len));
1669
1670 /* if the user set the AP check if match.
1671 * if the network does not broadcast essid we check the
cd017123 1672 * user supplied ANY essid
9d92ece8
LF		 1673 * if the network does broadcast and the user does not set
1674 * essid it is OK
1675 * if the network does broadcast and the user did set essid
1676 * check if essid match
1677 * if the ap is not set, check that the user set the bssid
db2c8da0 1678 * and the network does broadcast and that those two bssid match
9d92ece8
LF		 1679 */
1680 if ((apset && apmatch &&
1681 ((ssidset && ssidbroad && ssidmatch) ||
1682 (ssidbroad && !ssidset) || (!ssidbroad && ssidset))) ||
1683 (!apset && ssidset && ssidbroad && ssidmatch) ||
1684 (ieee->is_roaming && ssidset && ssidbroad && ssidmatch)) {
1685 /* if the essid is hidden replace it with the
14b40d92
MK		 1686 * essid provided by the user.
1687 */
9d92ece8
LF		 1688 if (!ssidbroad) {
1689 strncpy(tmp_ssid, ieee->current_network.ssid,
1690 IW_ESSID_MAX_SIZE);
1691 tmp_ssid_len = ieee->current_network.ssid_len;
1692 }
1693 memcpy(&ieee->current_network, net,
1694 sizeof(struct rtllib_network));
1695 if (!ssidbroad) {
1696 strncpy(ieee->current_network.ssid, tmp_ssid,
1697 IW_ESSID_MAX_SIZE);
1698 ieee->current_network.ssid_len = tmp_ssid_len;
1699 }
d69d2054
MK		 1700 netdev_info(ieee->dev,
1701 "Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",
1702 ieee->current_network.ssid,
1703 ieee->current_network.channel,
1704 ieee->current_network.qos_data.supported,
1705 ieee->pHTInfo->bEnableHT,
1706 ieee->current_network.bssht.bdSupportHT,
1707 ieee->current_network.mode,
1708 ieee->current_network.flags);
9d92ece8
LF		 1709
1710 if ((rtllib_act_scanning(ieee, false)) &&
1711 !(ieee->softmac_features & IEEE_SOFTMAC_SCAN))
1712 rtllib_stop_scan_syncro(ieee);
1713
9d92ece8
LF		 1714 HTResetIOTSetting(ieee->pHTInfo);
1715 ieee->wmm_acm = 0;
1716 if (ieee->iw_mode == IW_MODE_INFRA) {
1717 /* Join the network for the first time */
1718 ieee->AsocRetryCount = 0;
1719 if ((ieee->current_network.qos_data.supported == 1) &&
35e33b04 1720 ieee->current_network.bssht.bdSupportHT)
9d92ece8
LF		 1721 HTResetSelfAndSavePeerSetting(ieee,
1722 &(ieee->current_network));
1723 else
1724 ieee->pHTInfo->bCurrentHTSupport =
1725 false;
1726
1727 ieee->state = RTLLIB_ASSOCIATING;
1728 if (ieee->LedControlHandler != NULL)
1729 ieee->LedControlHandler(ieee->dev,
1730 LED_CTL_START_TO_LINK);
1731 queue_delayed_work_rsl(ieee->wq,
1732 &ieee->associate_procedure_wq, 0);
1733 } else {
1734 if (rtllib_is_54g(&ieee->current_network) &&
35e33b04
MK		 1735 (ieee->modulation &
1736 RTLLIB_OFDM_MODULATION)) {
9d92ece8 1737 ieee->rate = 108;
35e33b04
MK		 1738 ieee->SetWirelessMode(ieee->dev,
1739 IEEE_G);
1740 netdev_info(ieee->dev,
1741 "Using G rates\n");
94a79942 1742 } else {
9d92ece8 1743 ieee->rate = 22;
35e33b04
MK		 1744 ieee->SetWirelessMode(ieee->dev,
1745 IEEE_B);
1746 netdev_info(ieee->dev,
1747 "Using B rates\n");
94a79942 1748 }
9d92ece8
LF		 1749 memset(ieee->dot11HTOperationalRateSet, 0, 16);
1750 ieee->state = RTLLIB_LINKED;
1751 }
94a79942
LF		 1752 }
1753 }
94a79942
LF		 1754}
1755
1756void rtllib_softmac_check_all_nets(struct rtllib_device *ieee)
1757{
1758 unsigned long flags;
1759 struct rtllib_network *target;
1760
1761 spin_lock_irqsave(&ieee->lock, flags);
1762
1763 list_for_each_entry(target, &ieee->network_list, list) {
1764
1765 /* if the state become different that NOLINK means
1766 * we had found what we are searching for
1767 */
1768
1769 if (ieee->state != RTLLIB_NOLINK)
1770 break;
1771
9d92ece8
LF		 1772 if (ieee->scan_age == 0 || time_after(target->last_scanned +
1773 ieee->scan_age, jiffies))
1774 rtllib_softmac_new_net(ieee, target);
94a79942 1775 }
94a79942 1776 spin_unlock_irqrestore(&ieee->lock, flags);
94a79942
LF		 1777}
1778
e9fea2ec
MK		 1779static inline u16 auth_parse(struct net_device *dev, struct sk_buff *skb,
1780 u8 **challenge, int *chlen)
94a79942
LF		 1781{
1782 struct rtllib_authentication *a;
1783 u8 *t;
3a6b70c3 1784
9d92ece8
LF		 1785 if (skb->len < (sizeof(struct rtllib_authentication) -
1786 sizeof(struct rtllib_info_element))) {
e9fea2ec 1787 netdev_dbg(dev, "invalid len in auth resp: %d\n", skb->len);
94a79942
LF		 1788 return 0xcafe;
1789 }
1790 *challenge = NULL;
9d92ece8
LF		 1791 a = (struct rtllib_authentication *) skb->data;
1792 if (skb->len > (sizeof(struct rtllib_authentication) + 3)) {
94a79942
LF		 1793 t = skb->data + sizeof(struct rtllib_authentication);
1794
9d92ece8 1795 if (*(t++) == MFIE_TYPE_CHALLENGE) {
94a79942 1796 *chlen = *(t++);
6dea0da1 1797 *challenge = kmemdup(t, *chlen, GFP_ATOMIC);
ae053253
HP		 1798 if (!*challenge)
1799 return -ENOMEM;
94a79942
LF		 1800 }
1801 }
640f7d69 1802 return le16_to_cpu(a->status);
94a79942
LF		 1803}
1804
e9fea2ec 1805static int auth_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
94a79942
LF		 1806{
1807 struct rtllib_authentication *a;
1808
9d92ece8
LF		 1809 if (skb->len < (sizeof(struct rtllib_authentication) -
1810 sizeof(struct rtllib_info_element))) {
e9fea2ec 1811 netdev_dbg(dev, "invalid len in auth request: %d\n", skb->len);
94a79942
LF		 1812 return -1;
1813 }
9d92ece8 1814 a = (struct rtllib_authentication *) skb->data;
94a79942 1815
b57ceb19 1816 ether_addr_copy(dest, a->header.addr2);
94a79942
LF		 1817
1818 if (le16_to_cpu(a->algorithm) != WLAN_AUTH_OPEN)
1819 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG;
1820
1821 return WLAN_STATUS_SUCCESS;
1822}
1823
9d92ece8
LF		 1824static short probe_rq_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1825 u8 *src)
94a79942
LF		 1826{
1827 u8 *tag;
1828 u8 *skbend;
9d92ece8 1829 u8 *ssid = NULL;
94a79942 1830 u8 ssidlen = 0;
94a79942
LF		 1831 struct rtllib_hdr_3addr *header =
1832 (struct rtllib_hdr_3addr *) skb->data;
9d92ece8 1833 bool bssid_match;
94a79942 1834
9d92ece8 1835 if (skb->len < sizeof(struct rtllib_hdr_3addr))
94a79942 1836 return -1; /* corrupted */
94a79942 1837
9d92ece8 1838 bssid_match =
c2f8b4ab 1839 (!ether_addr_equal(header->addr3, ieee->current_network.bssid)) &&
0c43e56c 1840 (!is_broadcast_ether_addr(header->addr3));
9d92ece8
LF		 1841 if (bssid_match)
1842 return -1;
94a79942 1843
b57ceb19 1844 ether_addr_copy(src, header->addr2);
94a79942 1845
9d92ece8 1846 skbend = (u8 *)skb->data + skb->len;
94a79942 1847
9d92ece8 1848 tag = skb->data + sizeof(struct rtllib_hdr_3addr);
94a79942 1849
9d92ece8
LF		 1850 while (tag + 1 < skbend) {
1851 if (*tag == 0) {
1852 ssid = tag + 2;
1853 ssidlen = *(tag + 1);
94a79942
LF		 1854 break;
1855 }
1856 tag++; /* point to the len field */
1857 tag = tag + *(tag); /* point to the last data byte of the tag */
1858 tag++; /* point to the next tag */
1859 }
1860
9d92ece8
LF		 1861 if (ssidlen == 0)
1862 return 1;
94a79942 1863
9d92ece8
LF		 1864 if (!ssid)
1865 return 1; /* ssid not found in tagged param */
94a79942 1866
9d92ece8 1867 return !strncmp(ssid, ieee->current_network.ssid, ssidlen);
94a79942
LF		 1868}
1869
e9fea2ec 1870static int assoc_rq_parse(struct net_device *dev, struct sk_buff *skb, u8 *dest)
94a79942
LF		 1871{
1872 struct rtllib_assoc_request_frame *a;
1873
1874 if (skb->len < (sizeof(struct rtllib_assoc_request_frame) -
1875 sizeof(struct rtllib_info_element))) {
e9fea2ec 1876 netdev_dbg(dev, "invalid len in auth request:%d\n", skb->len);
94a79942
LF		 1877 return -1;
1878 }
1879
9d92ece8 1880 a = (struct rtllib_assoc_request_frame *) skb->data;
94a79942 1881
b57ceb19 1882 ether_addr_copy(dest, a->header.addr2);
94a79942
LF		 1883
1884 return 0;
1885}
1886
9d92ece8
LF		 1887static inline u16 assoc_parse(struct rtllib_device *ieee, struct sk_buff *skb,
1888 int *aid)
94a79942
LF		 1889{
1890 struct rtllib_assoc_response_frame *response_head;
1891 u16 status_code;
1892
9d92ece8 1893 if (skb->len < sizeof(struct rtllib_assoc_response_frame)) {
e9fea2ec
MK		 1894 netdev_dbg(ieee->dev, "Invalid len in auth resp: %d\n",
1895 skb->len);
94a79942
LF		 1896 return 0xcafe;
1897 }
1898
9d92ece8 1899 response_head = (struct rtllib_assoc_response_frame *) skb->data;
94a79942
LF		 1900 *aid = le16_to_cpu(response_head->aid) & 0x3fff;
1901
1902 status_code = le16_to_cpu(response_head->status);
9d92ece8
LF		 1903 if ((status_code == WLAN_STATUS_ASSOC_DENIED_RATES ||
1904 status_code == WLAN_STATUS_CAPS_UNSUPPORTED) &&
94a79942 1905 ((ieee->mode == IEEE_G) &&
9d92ece8
LF		 1906 (ieee->current_network.mode == IEEE_N_24G) &&
1907 (ieee->AsocRetryCount++ < (RT_ASOC_RETRY_LIMIT-1)))) {
1908 ieee->pHTInfo->IOTAction |= HT_IOT_ACT_PURE_N_MODE;
1909 } else {
1910 ieee->AsocRetryCount = 0;
94a79942
LF		 1911 }
1912
1913 return le16_to_cpu(response_head->status);
1914}
1915
1916void rtllib_rx_probe_rq(struct rtllib_device *ieee, struct sk_buff *skb)
1917{
1918 u8 dest[ETH_ALEN];
3a6b70c3 1919
94a79942 1920 ieee->softmac_stats.rx_probe_rq++;
9d92ece8 1921 if (probe_rq_parse(ieee, skb, dest) > 0) {
94a79942
LF		 1922 ieee->softmac_stats.tx_probe_rs++;
1923 rtllib_resp_to_probe(ieee, dest);
94a79942
LF		 1924 }
1925}
1926
9d92ece8
LF		 1927static inline void rtllib_rx_auth_rq(struct rtllib_device *ieee,
1928 struct sk_buff *skb)
94a79942
LF		 1929{
1930 u8 dest[ETH_ALEN];
1931 int status;
3a6b70c3 1932
94a79942
LF		 1933 ieee->softmac_stats.rx_auth_rq++;
1934
e9fea2ec 1935 status = auth_rq_parse(ieee->dev, skb, dest);
9d92ece8 1936 if (status != -1)
94a79942 1937 rtllib_resp_to_auth(ieee, status, dest);
94a79942
LF		 1938}
1939
9d92ece8
LF		 1940static inline void rtllib_rx_assoc_rq(struct rtllib_device *ieee,
1941 struct sk_buff *skb)
94a79942 1942{
94a79942
LF		 1943 u8 dest[ETH_ALEN];
1944
06c11107 1945
94a79942 1946 ieee->softmac_stats.rx_ass_rq++;
e9fea2ec 1947 if (assoc_rq_parse(ieee->dev, skb, dest) != -1)
94a79942 1948 rtllib_resp_to_assoc_rq(ieee, dest);
94a79942 1949
d69d2054 1950 netdev_info(ieee->dev, "New client associated: %pM\n", dest);
94a79942
LF		 1951}
1952
94a79942
LF		 1953void rtllib_sta_ps_send_null_frame(struct rtllib_device *ieee, short pwr)
1954{
1955
1956 struct sk_buff *buf = rtllib_null_func(ieee, pwr);
1957
1958 if (buf)
1959 softmac_ps_mgmt_xmit(buf, ieee);
94a79942 1960}
3b28499c 1961EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame);
94a79942
LF		 1962
1963void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device *ieee)
1964{
94a79942
LF		 1965 struct sk_buff *buf = rtllib_pspoll_func(ieee);
1966
1967 if (buf)
1968 softmac_ps_mgmt_xmit(buf, ieee);
94a79942
LF		 1969}
1970
0dd56506 1971static short rtllib_sta_ps_sleep(struct rtllib_device *ieee, u64 *time)
94a79942
LF		 1972{
1973 int timeout = ieee->ps_timeout;
1974 u8 dtim;
9d92ece8
LF		 1975 struct rt_pwr_save_ctrl *pPSC = (struct rt_pwr_save_ctrl *)
1976 (&(ieee->PowerSaveControl));
94a79942 1977
9d92ece8
LF		 1978 if (ieee->LPSDelayCnt) {
1979 ieee->LPSDelayCnt--;
94a79942
LF		 1980 return 0;
1981 }
1982
1983 dtim = ieee->current_network.dtim_data;
1984 if (!(dtim & RTLLIB_DTIM_VALID))
1985 return 0;
1986 timeout = ieee->current_network.beacon_interval;
1987 ieee->current_network.dtim_data = RTLLIB_DTIM_INVALID;
9d92ece8 1988 /* there's no need to nofity AP that I find you buffered
14b40d92
MK		 1989 * with broadcast packet
1990 */
94a79942
LF		 1991 if (dtim & (RTLLIB_DTIM_UCAST & ieee->ps))
1992 return 2;
1993
8b9733c1
VT		 1994 if (!time_after(jiffies,
1995 ieee->dev->trans_start + msecs_to_jiffies(timeout)))
94a79942 1996 return 0;
8b9733c1
VT		 1997 if (!time_after(jiffies,
1998 ieee->last_rx_ps_time + msecs_to_jiffies(timeout)))
94a79942 1999 return 0;
9d92ece8
LF		 2000 if ((ieee->softmac_features & IEEE_SOFTMAC_SINGLE_QUEUE) &&
2001 (ieee->mgmt_queue_tail != ieee->mgmt_queue_head))
94a79942
LF		 2002 return 0;
2003
9d92ece8 2004 if (time) {
4bb01423 2005 if (ieee->bAwakePktSent) {
94a79942
LF		 2006 pPSC->LPSAwakeIntvl = 1;
2007 } else {
35e33b04 2008 u8 MaxPeriod = 1;
94a79942
LF		 2009
2010 if (pPSC->LPSAwakeIntvl == 0)
2011 pPSC->LPSAwakeIntvl = 1;
2012 if (pPSC->RegMaxLPSAwakeIntvl == 0)
2013 MaxPeriod = 1;
2014 else if (pPSC->RegMaxLPSAwakeIntvl == 0xFF)
2015 MaxPeriod = ieee->current_network.dtim_period;
2016 else
2017 MaxPeriod = pPSC->RegMaxLPSAwakeIntvl;
9d92ece8
LF		 2018 pPSC->LPSAwakeIntvl = (pPSC->LPSAwakeIntvl >=
2019 MaxPeriod) ? MaxPeriod :
2020 (pPSC->LPSAwakeIntvl + 1);
94a79942
LF		 2021 }
2022 {
2023 u8 LPSAwakeIntvl_tmp = 0;
2024 u8 period = ieee->current_network.dtim_period;
2025 u8 count = ieee->current_network.tim.tim_count;
3a6b70c3 2026
9d92ece8 2027 if (count == 0) {
94a79942 2028 if (pPSC->LPSAwakeIntvl > period)
9d92ece8
LF		 2029 LPSAwakeIntvl_tmp = period +
2030 (pPSC->LPSAwakeIntvl -
2031 period) -
2032 ((pPSC->LPSAwakeIntvl-period) %
2033 period);
94a79942
LF		 2034 else
2035 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2036
2037 } else {
9d92ece8
LF		 2038 if (pPSC->LPSAwakeIntvl >
2039 ieee->current_network.tim.tim_count)
2040 LPSAwakeIntvl_tmp = count +
2041 (pPSC->LPSAwakeIntvl - count) -
2042 ((pPSC->LPSAwakeIntvl-count)%period);
94a79942
LF		 2043 else
2044 LPSAwakeIntvl_tmp = pPSC->LPSAwakeIntvl;
2045 }
2046
0dd56506 2047 *time = ieee->current_network.last_dtim_sta_time
8b9733c1 2048 + msecs_to_jiffies(ieee->current_network.beacon_interval *
9d92ece8 2049 LPSAwakeIntvl_tmp);
94a79942
LF		 2050 }
2051 }
2052
94a79942
LF		 2053 return 1;
2054
2055
2056}
2057
ec0dc6be 2058static inline void rtllib_sta_ps(struct rtllib_device *ieee)
94a79942 2059{
0dd56506 2060 u64 time;
94a79942 2061 short sleep;
9d92ece8 2062 unsigned long flags, flags2;
94a79942
LF		 2063
2064 spin_lock_irqsave(&ieee->lock, flags);
2065
2066 if ((ieee->ps == RTLLIB_PS_DISABLED ||
9d92ece8
LF		 2067 ieee->iw_mode != IW_MODE_INFRA ||
2068 ieee->state != RTLLIB_LINKED)) {
0822339b
MK		 2069 RT_TRACE(COMP_DBG,
2070 "=====>%s(): no need to ps,wake up!! ieee->ps is %d, ieee->iw_mode is %d, ieee->state is %d\n",
2071 __func__, ieee->ps, ieee->iw_mode, ieee->state);
94a79942 2072 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
94a79942
LF		 2073 rtllib_sta_wakeup(ieee, 1);
2074
2075 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2076 }
0dd56506 2077 sleep = rtllib_sta_ps_sleep(ieee, &time);
94a79942
LF		 2078 /* 2 wake, 1 sleep, 0 do nothing */
2079 if (sleep == 0)
94a79942 2080 goto out;
9d92ece8
LF		 2081 if (sleep == 1) {
2082 if (ieee->sta_sleep == LPS_IS_SLEEP) {
0dd56506 2083 ieee->enter_sleep_state(ieee->dev, time);
9d92ece8 2084 } else if (ieee->sta_sleep == LPS_IS_WAKE) {
94a79942
LF		 2085 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2086
9d92ece8 2087 if (ieee->ps_is_queue_empty(ieee->dev)) {
94a79942
LF		 2088 ieee->sta_sleep = LPS_WAIT_NULL_DATA_SEND;
2089 ieee->ack_tx_to_ieee = 1;
9d92ece8 2090 rtllib_sta_ps_send_null_frame(ieee, 1);
0dd56506 2091 ieee->ps_time = time;
94a79942
LF		 2092 }
2093 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2094
2095 }
2096
2097 ieee->bAwakePktSent = false;
2098
9d92ece8 2099 } else if (sleep == 2) {
94a79942
LF		 2100 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
2101
9d92ece8 2102 rtllib_sta_wakeup(ieee, 1);
94a79942
LF		 2103
2104 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2105 }
2106
2107out:
2108 spin_unlock_irqrestore(&ieee->lock, flags);
2109
2110}
2111
2112void rtllib_sta_wakeup(struct rtllib_device *ieee, short nl)
2113{
9d92ece8
LF		 2114 if (ieee->sta_sleep == LPS_IS_WAKE) {
2115 if (nl) {
2116 if (ieee->pHTInfo->IOTAction &
2117 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
94a79942
LF		 2118 ieee->ack_tx_to_ieee = 1;
2119 rtllib_sta_ps_send_null_frame(ieee, 0);
9d92ece8 2120 } else {
94a79942
LF		 2121 ieee->ack_tx_to_ieee = 1;
2122 rtllib_sta_ps_send_pspoll_frame(ieee);
2123 }
2124 }
2125 return;
2126
2127 }
2128
2129 if (ieee->sta_sleep == LPS_IS_SLEEP)
2130 ieee->sta_wake_up(ieee->dev);
9d92ece8
LF		 2131 if (nl) {
2132 if (ieee->pHTInfo->IOTAction &
2133 HT_IOT_ACT_NULL_DATA_POWER_SAVING) {
94a79942 2134 ieee->ack_tx_to_ieee = 1;
94a79942 2135 rtllib_sta_ps_send_null_frame(ieee, 0);
9d92ece8 2136 } else {
94a79942
LF		 2137 ieee->ack_tx_to_ieee = 1;
2138 ieee->polling = true;
2139 rtllib_sta_ps_send_pspoll_frame(ieee);
2140 }
2141
2142 } else {
2143 ieee->sta_sleep = LPS_IS_WAKE;
2144 ieee->polling = false;
2145 }
2146}
2147
2148void rtllib_ps_tx_ack(struct rtllib_device *ieee, short success)
2149{
9d92ece8 2150 unsigned long flags, flags2;
94a79942
LF		 2151
2152 spin_lock_irqsave(&ieee->lock, flags);
2153
9d92ece8 2154 if (ieee->sta_sleep == LPS_WAIT_NULL_DATA_SEND) {
94a79942 2155 /* Null frame with PS bit set */
9d92ece8 2156 if (success) {
94a79942 2157 ieee->sta_sleep = LPS_IS_SLEEP;
0dd56506 2158 ieee->enter_sleep_state(ieee->dev, ieee->ps_time);
94a79942
LF		 2159 }
2160 /* if the card report not success we can't be sure the AP
2161 * has not RXed so we can't assume the AP believe us awake
2162 */
2163 } else {/* 21112005 - tx again null without PS bit if lost */
2164
9d92ece8 2165 if ((ieee->sta_sleep == LPS_IS_WAKE) && !success) {
94a79942 2166 spin_lock_irqsave(&ieee->mgmt_tx_lock, flags2);
9d92ece8
LF		 2167 if (ieee->pHTInfo->IOTAction &
2168 HT_IOT_ACT_NULL_DATA_POWER_SAVING)
94a79942 2169 rtllib_sta_ps_send_null_frame(ieee, 0);
94a79942 2170 else
94a79942 2171 rtllib_sta_ps_send_pspoll_frame(ieee);
94a79942
LF		 2172 spin_unlock_irqrestore(&ieee->mgmt_tx_lock, flags2);
2173 }
2174 }
2175 spin_unlock_irqrestore(&ieee->lock, flags);
2176}
3b28499c 2177EXPORT_SYMBOL(rtllib_ps_tx_ack);
94a79942 2178
35e33b04
MK		 2179static void rtllib_process_action(struct rtllib_device *ieee,
2180 struct sk_buff *skb)
94a79942
LF		 2181{
2182 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
9d92ece8 2183 u8 *act = rtllib_get_payload((struct rtllib_hdr *)header);
94a79942
LF		 2184 u8 category = 0;
2185
2186 if (act == NULL) {
11e672c3
MK		 2187 netdev_warn(ieee->dev,
2188 "Error getting payload of action frame\n");
94a79942
LF		 2189 return;
2190 }
2191
2192 category = *act;
9d92ece8 2193 act++;
94a79942 2194 switch (category) {
9d92ece8
LF		 2195 case ACT_CAT_BA:
2196 switch (*act) {
2197 case ACT_ADDBAREQ:
2198 rtllib_rx_ADDBAReq(ieee, skb);
2199 break;
2200 case ACT_ADDBARSP:
2201 rtllib_rx_ADDBARsp(ieee, skb);
94a79942 2202 break;
9d92ece8
LF		 2203 case ACT_DELBA:
2204 rtllib_rx_DELBA(ieee, skb);
94a79942 2205 break;
9d92ece8
LF		 2206 }
2207 break;
2208 default:
2209 break;
94a79942 2210 }
94a79942
LF		 2211}
2212
9d92ece8
LF		 2213inline int rtllib_rx_assoc_resp(struct rtllib_device *ieee, struct sk_buff *skb,
2214 struct rtllib_rx_stats *rx_stats)
94a79942
LF		 2215{
2216 u16 errcode;
2217 int aid;
9d92ece8 2218 u8 *ies;
94a79942
LF		 2219 struct rtllib_assoc_response_frame *assoc_resp;
2220 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
fa70ae09 2221 u16 frame_ctl = le16_to_cpu(header->frame_ctl);
94a79942 2222
e9fea2ec 2223 netdev_dbg(ieee->dev, "received [RE]ASSOCIATION RESPONSE (%d)\n",
fa70ae09 2224 WLAN_FC_GET_STYPE(frame_ctl));
94a79942
LF		 2225
2226 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
9d92ece8
LF		 2227 ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATED &&
2228 (ieee->iw_mode == IW_MODE_INFRA)) {
2229 errcode = assoc_parse(ieee, skb, &aid);
2230 if (0 == errcode) {
2231 struct rtllib_network *network =
2232 kzalloc(sizeof(struct rtllib_network),
2233 GFP_ATOMIC);
94a79942
LF		 2234
2235 if (!network)
2236 return 1;
9d92ece8 2237 ieee->state = RTLLIB_LINKED;
94a79942
LF		 2238 ieee->assoc_id = aid;
2239 ieee->softmac_stats.rx_ass_ok++;
2240 /* station support qos */
9d92ece8
LF		 2241 /* Let the register setting default with Legacy station */
2242 assoc_resp = (struct rtllib_assoc_response_frame *)skb->data;
94a79942 2243 if (ieee->current_network.qos_data.supported == 1) {
9d92ece8
LF		 2244 if (rtllib_parse_info_param(ieee, assoc_resp->info_element,
2245 rx_stats->len - sizeof(*assoc_resp),
2246 network, rx_stats)) {
94a79942
LF		 2247 kfree(network);
2248 return 1;
94a79942 2249 }
92db2a27
MC		 2250 memcpy(ieee->pHTInfo->PeerHTCapBuf,
2251 network->bssht.bdHTCapBuf,
2252 network->bssht.bdHTCapLen);
2253 memcpy(ieee->pHTInfo->PeerHTInfoBuf,
2254 network->bssht.bdHTInfoBuf,
2255 network->bssht.bdHTInfoLen);
94a79942 2256 if (ieee->handle_assoc_response != NULL)
9d92ece8
LF		 2257 ieee->handle_assoc_response(ieee->dev,
2258 (struct rtllib_assoc_response_frame *)header,
2259 network);
94a79942 2260 }
33750343 2261 kfree(network);
94a79942 2262
9d92ece8
LF		 2263 kfree(ieee->assocresp_ies);
2264 ieee->assocresp_ies = NULL;
94a79942
LF		 2265 ies = &(assoc_resp->info_element[0].id);
2266 ieee->assocresp_ies_len = (skb->data + skb->len) - ies;
9d92ece8
LF		 2267 ieee->assocresp_ies = kmalloc(ieee->assocresp_ies_len,
2268 GFP_ATOMIC);
94a79942 2269 if (ieee->assocresp_ies)
9d92ece8
LF		 2270 memcpy(ieee->assocresp_ies, ies,
2271 ieee->assocresp_ies_len);
2272 else {
d69d2054
MK		 2273 netdev_info(ieee->dev,
2274 "%s()Warning: can't alloc memory for assocresp_ies\n",
2275 __func__);
94a79942
LF		 2276 ieee->assocresp_ies_len = 0;
2277 }
2278 rtllib_associate_complete(ieee);
2279 } else {
2280 /* aid could not been allocated */
2281 ieee->softmac_stats.rx_ass_err++;
d69d2054
MK		 2282 netdev_info(ieee->dev,
2283 "Association response status code 0x%x\n",
2284 errcode);
9d92ece8
LF		 2285 if (ieee->AsocRetryCount < RT_ASOC_RETRY_LIMIT)
2286 queue_delayed_work_rsl(ieee->wq,
2287 &ieee->associate_procedure_wq, 0);
2288 else
94a79942 2289 rtllib_associate_abort(ieee);
94a79942
LF		 2290 }
2291 }
94a79942
LF		 2292 return 0;
2293}
2294
e8f05b0b 2295static void rtllib_rx_auth_resp(struct rtllib_device *ieee, struct sk_buff *skb)
94a79942
LF		 2296{
2297 u16 errcode;
9d92ece8
LF		 2298 u8 *challenge;
2299 int chlen = 0;
94a79942
LF		 2300 bool bSupportNmode = true, bHalfSupportNmode = false;
2301
e9fea2ec 2302 errcode = auth_parse(ieee->dev, skb, &challenge, &chlen);
94a79942 2303
f7567e20 2304 if (errcode) {
e8f05b0b 2305 ieee->softmac_stats.rx_auth_rs_err++;
e8f05b0b 2306 netdev_info(ieee->dev,
e725fb6f 2307 "Authentication respose status code 0x%x", errcode);
e8f05b0b 2308 rtllib_associate_abort(ieee);
f7567e20
MK		 2309 return;
2310 }
2311
2312 if (ieee->open_wep || !challenge) {
2313 ieee->state = RTLLIB_ASSOCIATING_AUTHENTICATED;
2314 ieee->softmac_stats.rx_auth_rs_ok++;
e725fb6f 2315 if (!(ieee->pHTInfo->IOTAction & HT_IOT_ACT_PURE_N_MODE)) {
f7567e20
MK		 2316 if (!ieee->GetNmodeSupportBySecCfg(ieee->dev)) {
2317 if (IsHTHalfNmodeAPs(ieee)) {
2318 bSupportNmode = true;
2319 bHalfSupportNmode = true;
2320 } else {
2321 bSupportNmode = false;
2322 bHalfSupportNmode = false;
2323 }
2324 }
2325 }
14b40d92 2326 /* Dummy wirless mode setting to avoid encryption issue */
f7567e20
MK		 2327 if (bSupportNmode) {
2328 ieee->SetWirelessMode(ieee->dev,
e725fb6f 2329 ieee->current_network.mode);
f7567e20
MK		 2330 } else {
2331 /*TODO*/
e725fb6f 2332 ieee->SetWirelessMode(ieee->dev, IEEE_G);
f7567e20
MK		 2333 }
2334
e725fb6f
MK		 2335 if ((ieee->current_network.mode == IEEE_N_24G) &&
2336 bHalfSupportNmode) {
2337 netdev_info(ieee->dev, "======>enter half N mode\n");
2338 ieee->bHalfWirelessN24GMode = true;
2339 } else {
2340 ieee->bHalfWirelessN24GMode = false;
2341 }
f7567e20
MK		 2342 rtllib_associate_step2(ieee);
2343 } else {
e725fb6f 2344 rtllib_auth_challenge(ieee, challenge, chlen);
e8f05b0b
MK		 2345 }
2346}
94a79942 2347
e8f05b0b
MK		 2348inline int rtllib_rx_auth(struct rtllib_device *ieee, struct sk_buff *skb,
2349 struct rtllib_rx_stats *rx_stats)
2350{
2351
2352 if (ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) {
2353 if (ieee->state == RTLLIB_ASSOCIATING_AUTHENTICATING &&
2354 (ieee->iw_mode == IW_MODE_INFRA)) {
e9fea2ec
MK		 2355 netdev_dbg(ieee->dev,
2356 "Received authentication response");
e8f05b0b 2357 rtllib_rx_auth_resp(ieee, skb);
9d92ece8 2358 } else if (ieee->iw_mode == IW_MODE_MASTER) {
94a79942
LF		 2359 rtllib_rx_auth_rq(ieee, skb);
2360 }
2361 }
94a79942
LF		 2362 return 0;
2363}
2364
2365inline int rtllib_rx_deauth(struct rtllib_device *ieee, struct sk_buff *skb)
2366{
2367 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
fa70ae09 2368 u16 frame_ctl;
94a79942
LF		 2369
2370 if (memcmp(header->addr3, ieee->current_network.bssid, ETH_ALEN) != 0)
2371 return 0;
2372
2373 /* FIXME for now repeat all the association procedure
14b40d92
MK		 2374 * both for disassociation and deauthentication
2375 */
94a79942
LF		 2376 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2377 ieee->state == RTLLIB_LINKED &&
2378 (ieee->iw_mode == IW_MODE_INFRA)) {
fa70ae09 2379 frame_ctl = le16_to_cpu(header->frame_ctl);
d69d2054
MK		 2380 netdev_info(ieee->dev,
2381 "==========>received disassoc/deauth(%x) frame, reason code:%x\n",
fa70ae09 2382 WLAN_FC_GET_STYPE(frame_ctl),
d69d2054 2383 ((struct rtllib_disassoc *)skb->data)->reason);
94a79942
LF		 2384 ieee->state = RTLLIB_ASSOCIATING;
2385 ieee->softmac_stats.reassoc++;
2386 ieee->is_roaming = true;
2387 ieee->LinkDetectInfo.bBusyTraffic = false;
2388 rtllib_disassociate(ieee);
2389 RemovePeerTS(ieee, header->addr2);
2390 if (ieee->LedControlHandler != NULL)
9d92ece8
LF		 2391 ieee->LedControlHandler(ieee->dev,
2392 LED_CTL_START_TO_LINK);
94a79942 2393
9d92ece8
LF		 2394 if (!(ieee->rtllib_ap_sec_type(ieee) &
2395 (SEC_ALG_CCMP|SEC_ALG_TKIP)))
2396 queue_delayed_work_rsl(ieee->wq,
2397 &ieee->associate_procedure_wq, 5);
94a79942 2398 }
94a79942
LF		 2399 return 0;
2400}
2401
9d92ece8
LF		 2402inline int rtllib_rx_frame_softmac(struct rtllib_device *ieee,
2403 struct sk_buff *skb,
2404 struct rtllib_rx_stats *rx_stats, u16 type,
2405 u16 stype)
94a79942
LF		 2406{
2407 struct rtllib_hdr_3addr *header = (struct rtllib_hdr_3addr *) skb->data;
fa70ae09 2408 u16 frame_ctl;
94a79942
LF		 2409
2410 if (!ieee->proto_started)
2411 return 0;
2412
fa70ae09
GD		 2413 frame_ctl = le16_to_cpu(header->frame_ctl);
2414 switch (WLAN_FC_GET_STYPE(frame_ctl)) {
9d92ece8
LF		 2415 case RTLLIB_STYPE_ASSOC_RESP:
2416 case RTLLIB_STYPE_REASSOC_RESP:
2417 if (rtllib_rx_assoc_resp(ieee, skb, rx_stats) == 1)
2418 return 1;
2419 break;
2420 case RTLLIB_STYPE_ASSOC_REQ:
2421 case RTLLIB_STYPE_REASSOC_REQ:
2422 if ((ieee->softmac_features & IEEE_SOFTMAC_ASSOCIATE) &&
2423 ieee->iw_mode == IW_MODE_MASTER)
2424 rtllib_rx_assoc_rq(ieee, skb);
2425 break;
2426 case RTLLIB_STYPE_AUTH:
2427 rtllib_rx_auth(ieee, skb, rx_stats);
2428 break;
2429 case RTLLIB_STYPE_DISASSOC:
2430 case RTLLIB_STYPE_DEAUTH:
2431 rtllib_rx_deauth(ieee, skb);
2432 break;
2433 case RTLLIB_STYPE_MANAGE_ACT:
2434 rtllib_process_action(ieee, skb);
2435 break;
2436 default:
2437 return -1;
94a79942 2438 }
94a79942
LF		 2439 return 0;
2440}
2441
db2c8da0 2442/* following are for a simpler TX queue management.
94a79942 2443 * Instead of using netif_[stop/wake]_queue the driver
cd017123
JM		 2444 * will use these two functions (plus a reset one), that
2445 * will internally use the kernel netif_* and takes
94a79942
LF		 2446 * care of the ieee802.11 fragmentation.
2447 * So the driver receives a fragment per time and might
cd017123
JM		 2448 * call the stop function when it wants to not
2449 * have enough room to TX an entire packet.
2450 * This might be useful if each fragment needs it's own
94a79942 2451 * descriptor, thus just keep a total free memory > than
cd017123
JM		 2452 * the max fragmentation threshold is not enough.. If the
2453 * ieee802.11 stack passed a TXB struct then you need
94a79942
LF		 2454 * to keep N free descriptors where
2455 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
2456 * In this way you need just one and the 802.11 stack
2457 * will take care of buffering fragments and pass them to
2458 * to the driver later, when it wakes the queue.
2459 */
2460void rtllib_softmac_xmit(struct rtllib_txb *txb, struct rtllib_device *ieee)
2461{
2462
2463 unsigned int queue_index = txb->queue_index;
2464 unsigned long flags;
2465 int i;
3b83db43 2466 struct cb_desc *tcb_desc = NULL;
94a79942
LF		 2467 unsigned long queue_len = 0;
2468
9d92ece8 2469 spin_lock_irqsave(&ieee->lock, flags);
94a79942
LF		 2470
2471 /* called with 2nd parm 0, no tx mgmt lock required */
9d92ece8 2472 rtllib_sta_wakeup(ieee, 0);
94a79942
LF		 2473
2474 /* update the tx status */
9d92ece8
LF		 2475 tcb_desc = (struct cb_desc *)(txb->fragments[0]->cb +
2476 MAX_DEV_ADDR_SIZE);
2477 if (tcb_desc->bMulticast)
94a79942 2478 ieee->stats.multicast++;
4f6807e8 2479
9d92ece8 2480 /* if xmit available, just xmit it immediately, else just insert it to
14b40d92
MK		 2481 * the wait queue
2482 */
94a79942 2483 for (i = 0; i < txb->nr_frags; i++) {
94a79942 2484 queue_len = skb_queue_len(&ieee->skb_waitQ[queue_index]);
e2ac0431 2485 if ((queue_len != 0) ||
9d92ece8
LF		 2486 (!ieee->check_nic_enough_desc(ieee->dev, queue_index)) ||
2487 (ieee->queue_stop)) {
14b40d92
MK		 2488 /* insert the skb packet to the wait queue
2489 * as for the completion function, it does not need
94a79942 2490 * to check it any more.
14b40d92 2491 */
94a79942 2492 if (queue_len < 200)
9d92ece8
LF		 2493 skb_queue_tail(&ieee->skb_waitQ[queue_index],
2494 txb->fragments[i]);
2495 else
94a79942 2496 kfree_skb(txb->fragments[i]);
9d92ece8 2497 } else {
94a79942
LF		 2498 ieee->softmac_data_hard_start_xmit(
2499 txb->fragments[i],
9d92ece8 2500 ieee->dev, ieee->rate);
94a79942
LF		 2501 }
2502 }
4f6807e8 2503
94a79942
LF		 2504 rtllib_txb_free(txb);
2505
9d92ece8 2506 spin_unlock_irqrestore(&ieee->lock, flags);
94a79942
LF		 2507
2508}
2509
94a79942
LF		 2510void rtllib_reset_queue(struct rtllib_device *ieee)
2511{
2512 unsigned long flags;
2513
9d92ece8 2514 spin_lock_irqsave(&ieee->lock, flags);
94a79942 2515 init_mgmt_queue(ieee);
9d92ece8 2516 if (ieee->tx_pending.txb) {
94a79942
LF		 2517 rtllib_txb_free(ieee->tx_pending.txb);
2518 ieee->tx_pending.txb = NULL;
2519 }
2520 ieee->queue_stop = 0;
9d92ece8 2521 spin_unlock_irqrestore(&ieee->lock, flags);
94a79942
LF		 2522
2523}
3b28499c 2524EXPORT_SYMBOL(rtllib_reset_queue);
94a79942 2525
94a79942
LF		 2526void rtllib_stop_all_queues(struct rtllib_device *ieee)
2527{
94a79942 2528 unsigned int i;
3a6b70c3 2529
9d92ece8
LF		 2530 for (i = 0; i < ieee->dev->num_tx_queues; i++)
2531 netdev_get_tx_queue(ieee->dev, i)->trans_start = jiffies;
94a79942 2532
94a79942 2533 netif_tx_stop_all_queues(ieee->dev);
94a79942
LF		 2534}
2535
2536void rtllib_wake_all_queues(struct rtllib_device *ieee)
2537{
94a79942 2538 netif_tx_wake_all_queues(ieee->dev);
94a79942
LF		 2539}
2540
2541inline void rtllib_randomize_cell(struct rtllib_device *ieee)
2542{
2543
71cd7913 2544 random_ether_addr(ieee->current_network.bssid);
94a79942
LF		 2545}
2546
2547/* called in user context only */
2548void rtllib_start_master_bss(struct rtllib_device *ieee)
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
2592 * operations because of the wx_sem hold.
2593 * Anyway some most set operations set a flag to speed-up
2594 * (abort) this wq (when syncro scanning) before sleeping
2595 * on the semaphore
2596 */
9d92ece8 2597 if (!ieee->proto_started) {
d69d2054 2598 netdev_info(ieee->dev, "==========oh driver down return\n");
94a79942
LF		 2599 return;
2600 }
2601 down(&ieee->wx_sem);
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)
2637 rtllib_randomize_cell(ieee);
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
2713 up(&ieee->wx_sem);
2714}
2715
2716inline void rtllib_start_ibss(struct rtllib_device *ieee)
2717{
8b9733c1
VT		 2718 queue_delayed_work_rsl(ieee->wq, &ieee->start_ibss_wq,
2719 msecs_to_jiffies(150));
94a79942
LF		 2720}
2721
2722/* this is called only in user context, with wx_sem held */
2723void rtllib_start_bss(struct rtllib_device *ieee)
2724{
2725 unsigned long flags;
3a6b70c3 2726
9d92ece8
LF		 2727 if (IS_DOT11D_ENABLE(ieee) && !IS_COUNTRY_IE_VALID(ieee)) {
2728 if (!ieee->bGlobalDomain)
94a79942 2729 return;
94a79942 2730 }
94a79942
LF		 2731 /* check if we have already found the net we
2732 * are interested in (if any).
2733 * if not (we are disassociated and we are not
2734 * in associating / authenticating phase) start the background scanning.
2735 */
2736 rtllib_softmac_check_all_nets(ieee);
2737
2738 /* ensure no-one start an associating process (thus setting
2739 * the ieee->state to rtllib_ASSOCIATING) while we
cd017123 2740 * have just checked it and we are going to enable scan.
94a79942
LF		 2741 * The rtllib_new_net function is always called with
2742 * lock held (from both rtllib_softmac_check_all_nets and
2743 * the rx path), so we cannot be in the middle of such function
2744 */
2745 spin_lock_irqsave(&ieee->lock, flags);
2746
9d92ece8 2747 if (ieee->state == RTLLIB_NOLINK)
94a79942 2748 rtllib_start_scan(ieee);
94a79942
LF		 2749 spin_unlock_irqrestore(&ieee->lock, flags);
2750}
2751
ec0dc6be 2752static void rtllib_link_change_wq(void *data)
94a79942 2753{
9d92ece8
LF		 2754 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2755 struct rtllib_device, link_change_wq);
94a79942
LF		 2756 ieee->link_change(ieee->dev);
2757}
2758/* called only in userspace context */
2759void rtllib_disassociate(struct rtllib_device *ieee)
2760{
2761 netif_carrier_off(ieee->dev);
2762 if (ieee->softmac_features & IEEE_SOFTMAC_TX_QUEUE)
2763 rtllib_reset_queue(ieee);
2764
2765 if (ieee->data_hard_stop)
2766 ieee->data_hard_stop(ieee->dev);
94a79942
LF		 2767 if (IS_DOT11D_ENABLE(ieee))
2768 Dot11d_Reset(ieee);
94a79942
LF		 2769 ieee->state = RTLLIB_NOLINK;
2770 ieee->is_set_key = false;
2771 ieee->wap_set = 0;
2772
2773 queue_delayed_work_rsl(ieee->wq, &ieee->link_change_wq, 0);
2774
94a79942 2775 notify_wx_assoc_event(ieee);
94a79942
LF		 2776}
2777
ec0dc6be 2778static void rtllib_associate_retry_wq(void *data)
94a79942 2779{
9d92ece8
LF		 2780 struct rtllib_device *ieee = container_of_dwork_rsl(data,
2781 struct rtllib_device, associate_retry_wq);
94a79942
LF		 2782 unsigned long flags;
2783
2784 down(&ieee->wx_sem);
2785 if (!ieee->proto_started)
2786 goto exit;
2787
2788 if (ieee->state != RTLLIB_ASSOCIATING_RETRY)
2789 goto exit;
2790
2791 /* until we do not set the state to RTLLIB_NOLINK
14b40d92
MK		 2792 * there are no possibility to have someone else trying
2793 * to start an association procedure (we get here with
2794 * ieee->state = RTLLIB_ASSOCIATING).
2795 * When we set the state to RTLLIB_NOLINK it is possible
2796 * that the RX path run an attempt to associate, but
2797 * both rtllib_softmac_check_all_nets and the
2798 * RX path works with ieee->lock held so there are no
2799 * problems. If we are still disassociated then start a scan.
2800 * the lock here is necessary to ensure no one try to start
2801 * an association procedure when we have just checked the
2802 * state and we are going to start the scan.
2803 */
94a79942
LF		 2804 ieee->beinretry = true;
2805 ieee->state = RTLLIB_NOLINK;
2806
2807 rtllib_softmac_check_all_nets(ieee);
2808
2809 spin_lock_irqsave(&ieee->lock, flags);
2810
2811 if (ieee->state == RTLLIB_NOLINK)
94a79942 2812 rtllib_start_scan(ieee);
94a79942
LF		 2813 spin_unlock_irqrestore(&ieee->lock, flags);
2814
2815 ieee->beinretry = false;
2816exit:
2817 up(&ieee->wx_sem);
2818}
2819
2820struct sk_buff *rtllib_get_beacon_(struct rtllib_device *ieee)
2821{
06c11107 2822 const u8 broadcast_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
94a79942
LF		 2823
2824 struct sk_buff *skb;
2825 struct rtllib_probe_response *b;
3a6b70c3 2826
94a79942
LF		 2827 skb = rtllib_probe_resp(ieee, broadcast_addr);
2828
2829 if (!skb)
2830 return NULL;
2831
2832 b = (struct rtllib_probe_response *) skb->data;
2833 b->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_BEACON);
2834
2835 return skb;
2836
2837}
2838
2839struct sk_buff *rtllib_get_beacon(struct rtllib_device *ieee)
2840{
2841 struct sk_buff *skb;
2842 struct rtllib_probe_response *b;
2843
2844 skb = rtllib_get_beacon_(ieee);
2845 if (!skb)
2846 return NULL;
2847
2848 b = (struct rtllib_probe_response *) skb->data;
2849 b->header.seq_ctl = cpu_to_le16(ieee->seq_ctrl[0] << 4);
2850
2851 if (ieee->seq_ctrl[0] == 0xFFF)
2852 ieee->seq_ctrl[0] = 0;
2853 else
2854 ieee->seq_ctrl[0]++;
2855
2856 return skb;
2857}
3b28499c 2858EXPORT_SYMBOL(rtllib_get_beacon);
94a79942 2859
9d92ece8
LF		 2860void rtllib_softmac_stop_protocol(struct rtllib_device *ieee, u8 mesh_flag,
2861 u8 shutdown)
94a79942
LF		 2862{
2863 rtllib_stop_scan_syncro(ieee);
2864 down(&ieee->wx_sem);
9d92ece8 2865 rtllib_stop_protocol(ieee, shutdown);
94a79942
LF		 2866 up(&ieee->wx_sem);
2867}
3b28499c 2868EXPORT_SYMBOL(rtllib_softmac_stop_protocol);
94a79942
LF		 2869
2870
2871void rtllib_stop_protocol(struct rtllib_device *ieee, u8 shutdown)
2872{
2873 if (!ieee->proto_started)
2874 return;
2875
9d92ece8
LF		 2876 if (shutdown) {
2877 ieee->proto_started = 0;
94a79942
LF		 2878 ieee->proto_stoppping = 1;
2879 if (ieee->rtllib_ips_leave != NULL)
2880 ieee->rtllib_ips_leave(ieee->dev);
2881 }
2882
2883 rtllib_stop_send_beacons(ieee);
2884 del_timer_sync(&ieee->associate_timer);
2885 cancel_delayed_work(&ieee->associate_retry_wq);
2886 cancel_delayed_work(&ieee->start_ibss_wq);
2887 cancel_delayed_work(&ieee->link_change_wq);
2888 rtllib_stop_scan(ieee);
2889
2890 if (ieee->state <= RTLLIB_ASSOCIATING_AUTHENTICATED)
2891 ieee->state = RTLLIB_NOLINK;
2892
9d92ece8 2893 if (ieee->state == RTLLIB_LINKED) {
94a79942 2894 if (ieee->iw_mode == IW_MODE_INFRA)
acd442db 2895 SendDisassociation(ieee, 1, WLAN_REASON_DEAUTH_LEAVING);
94a79942
LF		 2896 rtllib_disassociate(ieee);
2897 }
2898
9d92ece8 2899 if (shutdown) {
94a79942
LF		 2900 RemoveAllTS(ieee);
2901 ieee->proto_stoppping = 0;
2902 }
9d92ece8
LF		 2903 kfree(ieee->assocreq_ies);
2904 ieee->assocreq_ies = NULL;
2905 ieee->assocreq_ies_len = 0;
2906 kfree(ieee->assocresp_ies);
2907 ieee->assocresp_ies = NULL;
2908 ieee->assocresp_ies_len = 0;
94a79942
LF		 2909}
2910
2911void rtllib_softmac_start_protocol(struct rtllib_device *ieee, u8 mesh_flag)
2912{
2913 down(&ieee->wx_sem);
2914 rtllib_start_protocol(ieee);
2915 up(&ieee->wx_sem);
2916}
3b28499c 2917EXPORT_SYMBOL(rtllib_softmac_start_protocol);
94a79942
LF		 2918
2919void rtllib_start_protocol(struct rtllib_device *ieee)
2920{
2921 short ch = 0;
2922 int i = 0;
2923
2924 rtllib_update_active_chan_map(ieee);
2925
2926 if (ieee->proto_started)
2927 return;
2928
2929 ieee->proto_started = 1;
2930
2931 if (ieee->current_network.channel == 0) {
2932 do {
2933 ch++;
2934 if (ch > MAX_CHANNEL_NUMBER)
2935 return; /* no channel found */
9d92ece8 2936 } while (!ieee->active_channel_map[ch]);
94a79942
LF		 2937 ieee->current_network.channel = ch;
2938 }
2939
2940 if (ieee->current_network.beacon_interval == 0)
2941 ieee->current_network.beacon_interval = 100;
2942
2943 for (i = 0; i < 17; i++) {
2944 ieee->last_rxseq_num[i] = -1;
2945 ieee->last_rxfrag_num[i] = -1;
2946 ieee->last_packet_time[i] = 0;
2947 }
2948
2949 if (ieee->UpdateBeaconInterruptHandler)
2950 ieee->UpdateBeaconInterruptHandler(ieee->dev, false);
2951
2952 ieee->wmm_acm = 0;
2953 /* if the user set the MAC of the ad-hoc cell and then
2954 * switch to managed mode, shall we make sure that association
2955 * attempts does not fail just because the user provide the essid
2956 * and the nic is still checking for the AP MAC ??
2957 */
2958 if (ieee->iw_mode == IW_MODE_INFRA) {
2959 rtllib_start_bss(ieee);
2960 } else if (ieee->iw_mode == IW_MODE_ADHOC) {
2961 if (ieee->UpdateBeaconInterruptHandler)
2962 ieee->UpdateBeaconInterruptHandler(ieee->dev, true);
2963
2964 rtllib_start_ibss(ieee);
2965
2966 } else if (ieee->iw_mode == IW_MODE_MASTER) {
2967 rtllib_start_master_bss(ieee);
2968 } else if (ieee->iw_mode == IW_MODE_MONITOR) {
2969 rtllib_start_monitor_mode(ieee);
2970 }
2971}
2972
2973void rtllib_softmac_init(struct rtllib_device *ieee)
2974{
2975 int i;
3a6b70c3 2976
94a79942
LF		 2977 memset(&ieee->current_network, 0, sizeof(struct rtllib_network));
2978
2979 ieee->state = RTLLIB_NOLINK;
9d92ece8
LF		 2980 for (i = 0; i < 5; i++)
2981 ieee->seq_ctrl[i] = 0;
929fa2a4 2982 ieee->pDot11dInfo = kzalloc(sizeof(struct rt_dot11d_info), GFP_ATOMIC);
94a79942 2983 if (!ieee->pDot11dInfo)
11e672c3 2984 netdev_err(ieee->dev, "Can't alloc memory for DOT11D\n");
94a79942
LF		 2985 ieee->LinkDetectInfo.SlotIndex = 0;
2986 ieee->LinkDetectInfo.SlotNum = 2;
9d92ece8
LF		 2987 ieee->LinkDetectInfo.NumRecvBcnInPeriod = 0;
2988 ieee->LinkDetectInfo.NumRecvDataInPeriod = 0;
2989 ieee->LinkDetectInfo.NumTxOkInPeriod = 0;
2990 ieee->LinkDetectInfo.NumRxOkInPeriod = 0;
2991 ieee->LinkDetectInfo.NumRxUnicastOkInPeriod = 0;
94a79942
LF		 2992 ieee->bIsAggregateFrame = false;
2993 ieee->assoc_id = 0;
2994 ieee->queue_stop = 0;
2995 ieee->scanning_continue = 0;
2996 ieee->softmac_features = 0;
2997 ieee->wap_set = 0;
2998 ieee->ssid_set = 0;
2999 ieee->proto_started = 0;
3000 ieee->proto_stoppping = 0;
3001 ieee->basic_rate = RTLLIB_DEFAULT_BASIC_RATE;
3002 ieee->rate = 22;
3003 ieee->ps = RTLLIB_PS_DISABLED;
3004 ieee->sta_sleep = LPS_IS_WAKE;
3005
9d92ece8
LF		 3006 ieee->Regdot11HTOperationalRateSet[0] = 0xff;
3007 ieee->Regdot11HTOperationalRateSet[1] = 0xff;
3008 ieee->Regdot11HTOperationalRateSet[4] = 0x01;
94a79942 3009
9d92ece8
LF		 3010 ieee->Regdot11TxHTOperationalRateSet[0] = 0xff;
3011 ieee->Regdot11TxHTOperationalRateSet[1] = 0xff;
3012 ieee->Regdot11TxHTOperationalRateSet[4] = 0x01;
94a79942
LF		 3013
3014 ieee->FirstIe_InScan = false;
3015 ieee->actscanning = false;
3016 ieee->beinretry = false;
3017 ieee->is_set_key = false;
3018 init_mgmt_queue(ieee);
3019
94a79942 3020 ieee->aggregation = true;
94a79942
LF		 3021 ieee->tx_pending.txb = NULL;
3022
3023 _setup_timer(&ieee->associate_timer,
3024 rtllib_associate_abort_cb,
3025 (unsigned long) ieee);
3026
3027 _setup_timer(&ieee->beacon_timer,
3028 rtllib_send_beacon_cb,
3029 (unsigned long) ieee);
3030
94a79942 3031
94a79942 3032 ieee->wq = create_workqueue(DRV_NAME);
94a79942 3033
9d92ece8
LF		 3034 INIT_DELAYED_WORK_RSL(&ieee->link_change_wq,
3035 (void *)rtllib_link_change_wq, ieee);
3036 INIT_DELAYED_WORK_RSL(&ieee->start_ibss_wq,
3037 (void *)rtllib_start_ibss_wq, ieee);
3038 INIT_WORK_RSL(&ieee->associate_complete_wq,
3039 (void *)rtllib_associate_complete_wq, ieee);
3040 INIT_DELAYED_WORK_RSL(&ieee->associate_procedure_wq,
3041 (void *)rtllib_associate_procedure_wq, ieee);
3042 INIT_DELAYED_WORK_RSL(&ieee->softmac_scan_wq,
3043 (void *)rtllib_softmac_scan_wq, ieee);
9d92ece8
LF		 3044 INIT_DELAYED_WORK_RSL(&ieee->associate_retry_wq,
3045 (void *)rtllib_associate_retry_wq, ieee);
3046 INIT_WORK_RSL(&ieee->wx_sync_scan_wq, (void *)rtllib_wx_sync_scan_wq,
3047 ieee);
94a79942
LF		 3048
3049 sema_init(&ieee->wx_sem, 1);
3050 sema_init(&ieee->scan_sem, 1);
9d92ece8 3051 sema_init(&ieee->ips_sem, 1);
94a79942
LF		 3052
3053 spin_lock_init(&ieee->mgmt_tx_lock);
3054 spin_lock_init(&ieee->beacon_lock);
3055
3056 tasklet_init(&ieee->ps_task,
3057 (void(*)(unsigned long)) rtllib_sta_ps,
3058 (unsigned long)ieee);
3059
3060}
3061
3062void rtllib_softmac_free(struct rtllib_device *ieee)
3063{
3064 down(&ieee->wx_sem);
d7613e53
LF		 3065 kfree(ieee->pDot11dInfo);
3066 ieee->pDot11dInfo = NULL;
94a79942
LF		 3067 del_timer_sync(&ieee->associate_timer);
3068
94a79942
LF		 3069 cancel_delayed_work(&ieee->associate_retry_wq);
3070 destroy_workqueue(ieee->wq);
94a79942 3071 up(&ieee->wx_sem);
876e20d3 3072 tasklet_kill(&ieee->ps_task);
94a79942
LF		 3073}
3074
3075/********************************************************
9d92ece8
LF		 3076 * Start of WPA code. *
3077 * this is stolen from the ipw2200 driver *
94a79942
LF		 3078 ********************************************************/
3079
3080
3081static int rtllib_wpa_enable(struct rtllib_device *ieee, int value)
3082{
3083 /* This is called when wpa_supplicant loads and closes the driver
14b40d92
MK		 3084 * interface.
3085 */
d69d2054 3086 netdev_info(ieee->dev, "%s WPA\n", value ? "enabling" : "disabling");
94a79942
LF		 3087 ieee->wpa_enabled = value;
3088 memset(ieee->ap_mac_addr, 0, 6);
3089 return 0;
3090}
3091
3092
ec0dc6be
LF		 3093static void rtllib_wpa_assoc_frame(struct rtllib_device *ieee, char *wpa_ie,
3094 int wpa_ie_len)
94a79942
LF		 3095{
3096 /* make sure WPA is enabled */
3097 rtllib_wpa_enable(ieee, 1);
3098
3099 rtllib_disassociate(ieee);
3100}
3101
3102
3103static int rtllib_wpa_mlme(struct rtllib_device *ieee, int command, int reason)
3104{
3105
3106 int ret = 0;
3107
3108 switch (command) {
3109 case IEEE_MLME_STA_DEAUTH:
3110 break;
3111
3112 case IEEE_MLME_STA_DISASSOC:
3113 rtllib_disassociate(ieee);
3114 break;
3115
3116 default:
d69d2054 3117 netdev_info(ieee->dev, "Unknown MLME request: %d\n", command);
94a79942
LF		 3118 ret = -EOPNOTSUPP;
3119 }
3120
3121 return ret;
3122}
3123
3124
3125static int rtllib_wpa_set_wpa_ie(struct rtllib_device *ieee,
3126 struct ieee_param *param, int plen)
3127{
3128 u8 *buf;
3129
3130 if (param->u.wpa_ie.len > MAX_WPA_IE_LEN ||
3131 (param->u.wpa_ie.len && param->u.wpa_ie.data == NULL))
3132 return -EINVAL;
3133
3134 if (param->u.wpa_ie.len) {
d9317533
TM		 3135 buf = kmemdup(param->u.wpa_ie.data, param->u.wpa_ie.len,
3136 GFP_KERNEL);
94a79942
LF		 3137 if (buf == NULL)
3138 return -ENOMEM;
3139
94a79942
LF		 3140 kfree(ieee->wpa_ie);
3141 ieee->wpa_ie = buf;
3142 ieee->wpa_ie_len = param->u.wpa_ie.len;
3143 } else {
3144 kfree(ieee->wpa_ie);
3145 ieee->wpa_ie = NULL;
3146 ieee->wpa_ie_len = 0;
3147 }
3148
3149 rtllib_wpa_assoc_frame(ieee, ieee->wpa_ie, ieee->wpa_ie_len);
3150 return 0;
3151}
3152
3153#define AUTH_ALG_OPEN_SYSTEM 0x1
3154#define AUTH_ALG_SHARED_KEY 0x2
3155#define AUTH_ALG_LEAP 0x4
3156static int rtllib_wpa_set_auth_algs(struct rtllib_device *ieee, int value)
3157{
3158
3159 struct rtllib_security sec = {
3160 .flags = SEC_AUTH_MODE,
3161 };
94a79942
LF		 3162
3163 if (value & AUTH_ALG_SHARED_KEY) {
3164 sec.auth_mode = WLAN_AUTH_SHARED_KEY;
3165 ieee->open_wep = 0;
3166 ieee->auth_mode = 1;
9d92ece8 3167 } else if (value & AUTH_ALG_OPEN_SYSTEM) {
94a79942
LF		 3168 sec.auth_mode = WLAN_AUTH_OPEN;
3169 ieee->open_wep = 1;
3170 ieee->auth_mode = 0;
9d92ece8 3171 } else if (value & AUTH_ALG_LEAP) {
94a79942
LF		 3172 sec.auth_mode = WLAN_AUTH_LEAP >> 6;
3173 ieee->open_wep = 1;
3174 ieee->auth_mode = 2;
3175 }
3176
3177
3178 if (ieee->set_security)
3179 ieee->set_security(ieee->dev, &sec);
3180
4764ca98 3181 return 0;
94a79942
LF		 3182}
3183
3184static int rtllib_wpa_set_param(struct rtllib_device *ieee, u8 name, u32 value)
3185{
9d92ece8 3186 int ret = 0;
94a79942
LF		 3187 unsigned long flags;
3188
3189 switch (name) {
3190 case IEEE_PARAM_WPA_ENABLED:
3191 ret = rtllib_wpa_enable(ieee, value);
3192 break;
3193
3194 case IEEE_PARAM_TKIP_COUNTERMEASURES:
9d92ece8 3195 ieee->tkip_countermeasures = value;
94a79942
LF		 3196 break;
3197
9d92ece8
LF		 3198 case IEEE_PARAM_DROP_UNENCRYPTED:
3199 {
94a79942
LF		 3200 /* HACK:
3201 *
3202 * wpa_supplicant calls set_wpa_enabled when the driver
3203 * is loaded and unloaded, regardless of if WPA is being
3204 * used. No other calls are made which can be used to
3205 * determine if encryption will be used or not prior to
3206 * association being expected. If encryption is not being
3207 * used, drop_unencrypted is set to false, else true -- we
3208 * can use this to determine if the CAP_PRIVACY_ON bit should
3209 * be set.
3210 */
3211 struct rtllib_security sec = {
3212 .flags = SEC_ENABLED,
3213 .enabled = value,
3214 };
3215 ieee->drop_unencrypted = value;
3216 /* We only change SEC_LEVEL for open mode. Others
3217 * are set by ipw_wpa_set_encryption.
3218 */
3219 if (!value) {
3220 sec.flags |= SEC_LEVEL;
3221 sec.level = SEC_LEVEL_0;
9d92ece8 3222 } else {
94a79942
LF		 3223 sec.flags |= SEC_LEVEL;
3224 sec.level = SEC_LEVEL_1;
3225 }
3226 if (ieee->set_security)
3227 ieee->set_security(ieee->dev, &sec);
3228 break;
3229 }
3230
3231 case IEEE_PARAM_PRIVACY_INVOKED:
9d92ece8 3232 ieee->privacy_invoked = value;
94a79942
LF		 3233 break;
3234
3235 case IEEE_PARAM_AUTH_ALGS:
3236 ret = rtllib_wpa_set_auth_algs(ieee, value);
3237 break;
3238
3239 case IEEE_PARAM_IEEE_802_1X:
9d92ece8 3240 ieee->ieee802_1x = value;
94a79942
LF		 3241 break;
3242 case IEEE_PARAM_WPAX_SELECT:
9d92ece8
LF		 3243 spin_lock_irqsave(&ieee->wpax_suitlist_lock, flags);
3244 spin_unlock_irqrestore(&ieee->wpax_suitlist_lock, flags);
94a79942
LF		 3245 break;
3246
3247 default:
d69d2054 3248 netdev_info(ieee->dev, "Unknown WPA param: %d\n", name);
94a79942
LF		 3249 ret = -EOPNOTSUPP;
3250 }
3251
3252 return ret;
3253}
3254
3255/* implementation borrowed from hostap driver */
3256static int rtllib_wpa_set_encryption(struct rtllib_device *ieee,
9d92ece8
LF		 3257 struct ieee_param *param, int param_len,
3258 u8 is_mesh)
94a79942
LF		 3259{
3260 int ret = 0;
32c44cb5
SM		 3261 struct lib80211_crypto_ops *ops;
3262 struct lib80211_crypt_data **crypt;
94a79942
LF		 3263
3264 struct rtllib_security sec = {
3265 .flags = 0,
3266 };
3267
3268 param->u.crypt.err = 0;
3269 param->u.crypt.alg[IEEE_CRYPT_ALG_NAME_LEN - 1] = '\0';
3270
3271 if (param_len !=
3272 (int) ((char *) param->u.crypt.key - (char *) param) +
3273 param->u.crypt.key_len) {
d69d2054
MK		 3274 netdev_info(ieee->dev, "Len mismatch %d, %d\n", param_len,
3275 param->u.crypt.key_len);
94a79942
LF		 3276 return -EINVAL;
3277 }
0c43e56c 3278 if (is_broadcast_ether_addr(param->sta_addr)) {
184f1938 3279 if (param->u.crypt.idx >= NUM_WEP_KEYS)
94a79942 3280 return -EINVAL;
0ddcf5fd 3281 crypt = &ieee->crypt_info.crypt[param->u.crypt.idx];
94a79942
LF		 3282 } else {
3283 return -EINVAL;
3284 }
3285
3286 if (strcmp(param->u.crypt.alg, "none") == 0) {
3287 if (crypt) {
3288 sec.enabled = 0;
3289 sec.level = SEC_LEVEL_0;
3290 sec.flags |= SEC_ENABLED | SEC_LEVEL;
3b148be0 3291 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
94a79942
LF		 3292 }
3293 goto done;
3294 }
3295 sec.enabled = 1;
3296 sec.flags |= SEC_ENABLED;
3297
3298 /* IPW HW cannot build TKIP MIC, host decryption still needed. */
3299 if (!(ieee->host_encrypt || ieee->host_decrypt) &&
3b148be0 3300 strcmp(param->u.crypt.alg, "R-TKIP"))
94a79942
LF		 3301 goto skip_host_crypt;
3302
3b148be0
SM		 3303 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3304 if (ops == NULL && strcmp(param->u.crypt.alg, "R-WEP") == 0) {
94a79942 3305 request_module("rtllib_crypt_wep");
3b148be0
SM		 3306 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3307 } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
94a79942 3308 request_module("rtllib_crypt_tkip");
3b148be0
SM		 3309 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
3310 } else if (ops == NULL && strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
94a79942 3311 request_module("rtllib_crypt_ccmp");
3b148be0 3312 ops = lib80211_get_crypto_ops(param->u.crypt.alg);
94a79942
LF		 3313 }
3314 if (ops == NULL) {
d69d2054
MK		 3315 netdev_info(ieee->dev, "unknown crypto alg '%s'\n",
3316 param->u.crypt.alg);
94a79942
LF		 3317 param->u.crypt.err = IEEE_CRYPT_ERR_UNKNOWN_ALG;
3318 ret = -EINVAL;
3319 goto done;
3320 }
3321 if (*crypt == NULL || (*crypt)->ops != ops) {
32c44cb5 3322 struct lib80211_crypt_data *new_crypt;
94a79942 3323
3b148be0 3324 lib80211_crypt_delayed_deinit(&ieee->crypt_info, crypt);
94a79942 3325
d272f9dd 3326 new_crypt = kzalloc(sizeof(*new_crypt), GFP_KERNEL);
94a79942
LF		 3327 if (new_crypt == NULL) {
3328 ret = -ENOMEM;
3329 goto done;
3330 }
94a79942
LF		 3331 new_crypt->ops = ops;
3332 if (new_crypt->ops)
3333 new_crypt->priv =
3334 new_crypt->ops->init(param->u.crypt.idx);
3335
3336 if (new_crypt->priv == NULL) {
3337 kfree(new_crypt);
3338 param->u.crypt.err = IEEE_CRYPT_ERR_CRYPT_INIT_FAILED;
3339 ret = -EINVAL;
3340 goto done;
3341 }
3342
3343 *crypt = new_crypt;
3344 }
3345
3346 if (param->u.crypt.key_len > 0 && (*crypt)->ops->set_key &&
3347 (*crypt)->ops->set_key(param->u.crypt.key,
3348 param->u.crypt.key_len, param->u.crypt.seq,
3349 (*crypt)->priv) < 0) {
d69d2054 3350 netdev_info(ieee->dev, "key setting failed\n");
94a79942
LF		 3351 param->u.crypt.err = IEEE_CRYPT_ERR_KEY_SET_FAILED;
3352 ret = -EINVAL;
3353 goto done;
3354 }
3355
3356 skip_host_crypt:
3357 if (param->u.crypt.set_tx) {
0ddcf5fd 3358 ieee->crypt_info.tx_keyidx = param->u.crypt.idx;
94a79942
LF		 3359 sec.active_key = param->u.crypt.idx;
3360 sec.flags |= SEC_ACTIVE_KEY;
3361 } else
3362 sec.flags &= ~SEC_ACTIVE_KEY;
3363
3364 if (param->u.crypt.alg != NULL) {
3365 memcpy(sec.keys[param->u.crypt.idx],
3366 param->u.crypt.key,
3367 param->u.crypt.key_len);
3368 sec.key_sizes[param->u.crypt.idx] = param->u.crypt.key_len;
3369 sec.flags |= (1 << param->u.crypt.idx);
3370
3b148be0 3371 if (strcmp(param->u.crypt.alg, "R-WEP") == 0) {
94a79942
LF		 3372 sec.flags |= SEC_LEVEL;
3373 sec.level = SEC_LEVEL_1;
3b148be0 3374 } else if (strcmp(param->u.crypt.alg, "R-TKIP") == 0) {
94a79942
LF		 3375 sec.flags |= SEC_LEVEL;
3376 sec.level = SEC_LEVEL_2;
3b148be0 3377 } else if (strcmp(param->u.crypt.alg, "R-CCMP") == 0) {
94a79942
LF		 3378 sec.flags |= SEC_LEVEL;
3379 sec.level = SEC_LEVEL_3;
3380 }
3381 }
3382 done:
3383 if (ieee->set_security)
3384 ieee->set_security(ieee->dev, &sec);
3385
3386 /* Do not reset port if card is in Managed mode since resetting will
3387 * generate new IEEE 802.11 authentication which may end up in looping
3388 * with IEEE 802.1X. If your hardware requires a reset after WEP
3389 * configuration (for example... Prism2), implement the reset_port in
14b40d92
MK		 3390 * the callbacks structures used to initialize the 802.11 stack.
3391 */
94a79942
LF		 3392 if (ieee->reset_on_keychange &&
3393 ieee->iw_mode != IW_MODE_INFRA &&
3394 ieee->reset_port &&
3395 ieee->reset_port(ieee->dev)) {
d69d2054 3396 netdev_info(ieee->dev, "reset_port failed\n");
94a79942
LF		 3397 param->u.crypt.err = IEEE_CRYPT_ERR_CARD_CONF_FAILED;
3398 return -EINVAL;
3399 }
3400
3401 return ret;
3402}
3403
9d92ece8 3404inline struct sk_buff *rtllib_disauth_skb(struct rtllib_network *beacon,
94a79942
LF		 3405 struct rtllib_device *ieee, u16 asRsn)
3406{
3407 struct sk_buff *skb;
3408 struct rtllib_disauth *disauth;
94a79942
LF		 3409 int len = sizeof(struct rtllib_disauth) + ieee->tx_headroom;
3410
94a79942 3411 skb = dev_alloc_skb(len);
9d92ece8 3412 if (!skb)
94a79942 3413 return NULL;
94a79942 3414
94a79942
LF		 3415 skb_reserve(skb, ieee->tx_headroom);
3416
9d92ece8
LF		 3417 disauth = (struct rtllib_disauth *) skb_put(skb,
3418 sizeof(struct rtllib_disauth));
94a79942
LF		 3419 disauth->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DEAUTH);
3420 disauth->header.duration_id = 0;
3421
b57ceb19
MK		 3422 ether_addr_copy(disauth->header.addr1, beacon->bssid);
3423 ether_addr_copy(disauth->header.addr2, ieee->dev->dev_addr);
3424 ether_addr_copy(disauth->header.addr3, beacon->bssid);
94a79942
LF		 3425
3426 disauth->reason = cpu_to_le16(asRsn);
3427 return skb;
3428}
3429
9d92ece8 3430inline struct sk_buff *rtllib_disassociate_skb(struct rtllib_network *beacon,
94a79942
LF		 3431 struct rtllib_device *ieee, u16 asRsn)
3432{
3433 struct sk_buff *skb;
3434 struct rtllib_disassoc *disass;
94a79942 3435 int len = sizeof(struct rtllib_disassoc) + ieee->tx_headroom;
3a6b70c3 3436
94a79942
LF		 3437 skb = dev_alloc_skb(len);
3438
9d92ece8 3439 if (!skb)
94a79942 3440 return NULL;
94a79942 3441
94a79942
LF		 3442 skb_reserve(skb, ieee->tx_headroom);
3443
9d92ece8
LF		 3444 disass = (struct rtllib_disassoc *) skb_put(skb,
3445 sizeof(struct rtllib_disassoc));
94a79942
LF		 3446 disass->header.frame_ctl = cpu_to_le16(RTLLIB_STYPE_DISASSOC);
3447 disass->header.duration_id = 0;
3448
b57ceb19
MK		 3449 ether_addr_copy(disass->header.addr1, beacon->bssid);
3450 ether_addr_copy(disass->header.addr2, ieee->dev->dev_addr);
3451 ether_addr_copy(disass->header.addr3, beacon->bssid);
94a79942
LF		 3452
3453 disass->reason = cpu_to_le16(asRsn);
3454 return skb;
3455}
3456
3457void SendDisassociation(struct rtllib_device *ieee, bool deauth, u16 asRsn)
3458{
3459 struct rtllib_network *beacon = &ieee->current_network;
3460 struct sk_buff *skb;
3461
9d92ece8
LF		 3462 if (deauth)
3463 skb = rtllib_disauth_skb(beacon, ieee, asRsn);
3464 else
3465 skb = rtllib_disassociate_skb(beacon, ieee, asRsn);
94a79942 3466
9d92ece8 3467 if (skb)
94a79942 3468 softmac_mgmt_xmit(skb, ieee);
94a79942
LF		 3469}
3470
3471u8 rtllib_ap_sec_type(struct rtllib_device *ieee)
3472{
9d92ece8 3473 static u8 ccmp_ie[4] = {0x00, 0x50, 0xf2, 0x04};
94a79942 3474 static u8 ccmp_rsn_ie[4] = {0x00, 0x0f, 0xac, 0x04};
9d92ece8 3475 int wpa_ie_len = ieee->wpa_ie_len;
32c44cb5 3476 struct lib80211_crypt_data *crypt;
94a79942
LF		 3477 int encrypt;
3478
0ddcf5fd 3479 crypt = ieee->crypt_info.crypt[ieee->crypt_info.tx_keyidx];
9d92ece8
LF		 3480 encrypt = (ieee->current_network.capability & WLAN_CAPABILITY_PRIVACY)
3481 || (ieee->host_encrypt && crypt && crypt->ops &&
3b148be0 3482 (0 == strcmp(crypt->ops->name, "R-WEP")));
94a79942
LF		 3483
3484 /* simply judge */
3485 if (encrypt && (wpa_ie_len == 0)) {
3486 return SEC_ALG_WEP;
3487 } else if ((wpa_ie_len != 0)) {
9d92ece8
LF		 3488 if (((ieee->wpa_ie[0] == 0xdd) &&
3489 (!memcmp(&(ieee->wpa_ie[14]), ccmp_ie, 4))) ||
3490 ((ieee->wpa_ie[0] == 0x30) &&
3491 (!memcmp(&ieee->wpa_ie[10], ccmp_rsn_ie, 4))))
94a79942
LF		 3492 return SEC_ALG_CCMP;
3493 else
3494 return SEC_ALG_TKIP;
3495 } else {
3496 return SEC_ALG_NONE;
3497 }
3498}
3499
9d92ece8
LF		 3500int rtllib_wpa_supplicant_ioctl(struct rtllib_device *ieee, struct iw_point *p,
3501 u8 is_mesh)
94a79942
LF		 3502{
3503 struct ieee_param *param;
9d92ece8 3504 int ret = 0;
94a79942
LF		 3505
3506 down(&ieee->wx_sem);
3507
9d92ece8 3508 if (p->length < sizeof(struct ieee_param) || !p->pointer) {
94a79942
LF		 3509 ret = -EINVAL;
3510 goto out;
3511 }
3512
21624981
TB		 3513 param = memdup_user(p->pointer, p->length);
3514 if (IS_ERR(param)) {
3515 ret = PTR_ERR(param);
94a79942
LF		 3516 goto out;
3517 }
3518
3519 switch (param->cmd) {
94a79942
LF		 3520 case IEEE_CMD_SET_WPA_PARAM:
3521 ret = rtllib_wpa_set_param(ieee, param->u.wpa_param.name,
3522 param->u.wpa_param.value);
3523 break;
3524
3525 case IEEE_CMD_SET_WPA_IE:
3526 ret = rtllib_wpa_set_wpa_ie(ieee, param, p->length);
3527 break;
3528
3529 case IEEE_CMD_SET_ENCRYPTION:
3530 ret = rtllib_wpa_set_encryption(ieee, param, p->length, 0);
3531 break;
3532
3533 case IEEE_CMD_MLME:
3534 ret = rtllib_wpa_mlme(ieee, param->u.mlme.command,
3535 param->u.mlme.reason_code);
3536 break;
3537
3538 default:
d69d2054
MK		 3539 netdev_info(ieee->dev, "Unknown WPA supplicant request: %d\n",
3540 param->cmd);
94a79942
LF		 3541 ret = -EOPNOTSUPP;
3542 break;
3543 }
3544
3545 if (ret == 0 && copy_to_user(p->pointer, param, p->length))
3546 ret = -EFAULT;
3547
3548 kfree(param);
3549out:
3550 up(&ieee->wx_sem);
3551
3552 return ret;
3553}
3b28499c 3554EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl);
94a79942 3555
c5654c0b 3556static void rtllib_MgntDisconnectIBSS(struct rtllib_device *rtllib)
94a79942
LF		 3557{
3558 u8 OpMode;
3559 u8 i;
3560 bool bFilterOutNonAssociatedBSSID = false;
3561
3562 rtllib->state = RTLLIB_NOLINK;
3563
9d92ece8
LF		 3564 for (i = 0; i < 6; i++)
3565 rtllib->current_network.bssid[i] = 0x55;
94a79942
LF		 3566
3567 rtllib->OpMode = RT_OP_MODE_NO_LINK;
9d92ece8
LF		 3568 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3569 rtllib->current_network.bssid);
94a79942
LF		 3570 OpMode = RT_OP_MODE_NO_LINK;
3571 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS, &OpMode);
3572 rtllib_stop_send_beacons(rtllib);
3573
3574 bFilterOutNonAssociatedBSSID = false;
9d92ece8
LF		 3575 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3576 (u8 *)(&bFilterOutNonAssociatedBSSID));
94a79942
LF		 3577 notify_wx_assoc_event(rtllib);
3578
3579}
3580
35e33b04
MK		 3581static void rtllib_MlmeDisassociateRequest(struct rtllib_device *rtllib,
3582 u8 *asSta, u8 asRsn)
94a79942
LF		 3583{
3584 u8 i;
3585 u8 OpMode;
3586
3587 RemovePeerTS(rtllib, asSta);
3588
ea9f10f2 3589 if (memcmp(rtllib->current_network.bssid, asSta, 6) == 0) {
94a79942
LF		 3590 rtllib->state = RTLLIB_NOLINK;
3591
9d92ece8
LF		 3592 for (i = 0; i < 6; i++)
3593 rtllib->current_network.bssid[i] = 0x22;
94a79942
LF		 3594 OpMode = RT_OP_MODE_NO_LINK;
3595 rtllib->OpMode = RT_OP_MODE_NO_LINK;
9d92ece8
LF		 3596 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_MEDIA_STATUS,
3597 (u8 *)(&OpMode));
94a79942
LF		 3598 rtllib_disassociate(rtllib);
3599
9d92ece8
LF		 3600 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_BSSID,
3601 rtllib->current_network.bssid);
94a79942
LF		 3602
3603 }
3604
3605}
3606
c5654c0b 3607static void
94a79942 3608rtllib_MgntDisconnectAP(
9d92ece8 3609 struct rtllib_device *rtllib,
94a79942
LF		 3610 u8 asRsn
3611)
3612{
3613 bool bFilterOutNonAssociatedBSSID = false;
3614
94a79942 3615 bFilterOutNonAssociatedBSSID = false;
9d92ece8
LF		 3616 rtllib->SetHwRegHandler(rtllib->dev, HW_VAR_CECHK_BSSID,
3617 (u8 *)(&bFilterOutNonAssociatedBSSID));
3618 rtllib_MlmeDisassociateRequest(rtllib, rtllib->current_network.bssid,
3619 asRsn);
94a79942
LF		 3620
3621 rtllib->state = RTLLIB_NOLINK;
3622}
3623
9d92ece8 3624bool rtllib_MgntDisconnect(struct rtllib_device *rtllib, u8 asRsn)
94a79942
LF		 3625{
3626 if (rtllib->ps != RTLLIB_PS_DISABLED)
9d92ece8 3627 rtllib->sta_wake_up(rtllib->dev);
94a79942 3628
9d92ece8
LF		 3629 if (rtllib->state == RTLLIB_LINKED) {
3630 if (rtllib->iw_mode == IW_MODE_ADHOC)
94a79942 3631 rtllib_MgntDisconnectIBSS(rtllib);
9d92ece8 3632 if (rtllib->iw_mode == IW_MODE_INFRA)
94a79942 3633 rtllib_MgntDisconnectAP(rtllib, asRsn);
94a79942
LF		 3634
3635 }
3636
3637 return true;
3638}
3b28499c 3639EXPORT_SYMBOL(rtllib_MgntDisconnect);
94a79942
LF		 3640
3641void notify_wx_assoc_event(struct rtllib_device *ieee)
3642{
3643 union iwreq_data wrqu;
3644
3645 if (ieee->cannot_notify)
3646 return;
3647
3648 wrqu.ap_addr.sa_family = ARPHRD_ETHER;
3649 if (ieee->state == RTLLIB_LINKED)
9d92ece8
LF		 3650 memcpy(wrqu.ap_addr.sa_data, ieee->current_network.bssid,
3651 ETH_ALEN);
3652 else {
94a79942 3653
d69d2054
MK		 3654 netdev_info(ieee->dev, "%s(): Tell user space disconnected\n",
3655 __func__);
cdbaf3f6 3656 eth_zero_addr(wrqu.ap_addr.sa_data);
94a79942
LF		 3657 }
3658 wireless_send_event(ieee->dev, SIOCGIWAP, &wrqu, NULL);
3659}
3b28499c 3660EXPORT_SYMBOL(notify_wx_assoc_event);
Linux 6.x block layer and io_uring tree(s)