1 /* IEEE 802.11 SoftMAC layer
2 * Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com>
4 * Mostly extracted from the rtl8180-sa2400 driver for the
5 * in-kernel generic ieee802.11 stack.
7 * Few lines might be stolen from other part of the rtllib
8 * stack. Copyright who own it's copyright
10 * WPA code stolen from the ipw2200 driver.
11 * Copyright who own it's copyright.
13 * released under the GPL
19 #include <linux/random.h>
20 #include <linux/delay.h>
21 #include <linux/uaccess.h>
22 #include <linux/etherdevice.h>
25 short rtllib_is_54g(struct rtllib_network
*net
)
27 return (net
->rates_ex_len
> 0) || (net
->rates_len
> 4);
30 short rtllib_is_shortslot(const struct rtllib_network
*net
)
32 return net
->capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
;
35 /* returns the total length needed for placing the RATE MFIE
36 * tag and the EXTENDED RATE MFIE tag if needed.
37 * It encludes two bytes per tag for the tag itself and its len
39 static unsigned int rtllib_MFIE_rate_len(struct rtllib_device
*ieee
)
41 unsigned int rate_len
= 0;
43 if (ieee
->modulation
& RTLLIB_CCK_MODULATION
)
44 rate_len
= RTLLIB_CCK_RATE_LEN
+ 2;
46 if (ieee
->modulation
& RTLLIB_OFDM_MODULATION
)
48 rate_len
+= RTLLIB_OFDM_RATE_LEN
+ 2;
53 /* place the MFIE rate, tag to the memory (double) pointed.
54 * Then it updates the pointer so that
55 * it points after the new MFIE tag added.
57 static void rtllib_MFIE_Brate(struct rtllib_device
*ieee
, u8
**tag_p
)
61 if (ieee
->modulation
& RTLLIB_CCK_MODULATION
) {
62 *tag
++ = MFIE_TYPE_RATES
;
64 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_1MB
;
65 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_2MB
;
66 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_5MB
;
67 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_11MB
;
70 /* We may add an option for custom rates that specific HW
75 static void rtllib_MFIE_Grate(struct rtllib_device
*ieee
, u8
**tag_p
)
79 if (ieee
->modulation
& RTLLIB_OFDM_MODULATION
) {
80 *tag
++ = MFIE_TYPE_RATES_EX
;
82 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_6MB
;
83 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_9MB
;
84 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_12MB
;
85 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_18MB
;
86 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_24MB
;
87 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_36MB
;
88 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_48MB
;
89 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_54MB
;
91 /* We may add an option for custom rates that specific HW might
96 static void rtllib_WMM_Info(struct rtllib_device
*ieee
, u8
**tag_p
)
100 *tag
++ = MFIE_TYPE_GENERIC
;
112 void rtllib_TURBO_Info(struct rtllib_device
*ieee
, u8
**tag_p
)
116 *tag
++ = MFIE_TYPE_GENERIC
;
127 printk(KERN_ALERT
"This is enable turbo mode IE process\n");
130 static void enqueue_mgmt(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
134 nh
= (ieee
->mgmt_queue_head
+ 1) % MGMT_QUEUE_NUM
;
137 * if the queue is full but we have newer frames then
138 * just overwrites the oldest.
140 * if (nh == ieee->mgmt_queue_tail)
143 ieee
->mgmt_queue_head
= nh
;
144 ieee
->mgmt_queue_ring
[nh
] = skb
;
148 static struct sk_buff
*dequeue_mgmt(struct rtllib_device
*ieee
)
152 if (ieee
->mgmt_queue_tail
== ieee
->mgmt_queue_head
)
155 ret
= ieee
->mgmt_queue_ring
[ieee
->mgmt_queue_tail
];
157 ieee
->mgmt_queue_tail
=
158 (ieee
->mgmt_queue_tail
+1) % MGMT_QUEUE_NUM
;
163 static void init_mgmt_queue(struct rtllib_device
*ieee
)
165 ieee
->mgmt_queue_tail
= ieee
->mgmt_queue_head
= 0;
170 MgntQuery_TxRateExcludeCCKRates(struct rtllib_device
*ieee
)
177 for (i
= 0; i
< ieee
->current_network
.rates_len
; i
++) {
178 BasicRate
= ieee
->current_network
.rates
[i
]&0x7F;
179 if (!rtllib_is_cck_rate(BasicRate
)) {
180 if (QueryRate
== 0) {
181 QueryRate
= BasicRate
;
183 if (BasicRate
< QueryRate
)
184 QueryRate
= BasicRate
;
189 if (QueryRate
== 0) {
191 printk(KERN_INFO
"No BasicRate found!!\n");
196 static u8
MgntQuery_MgntFrameTxRate(struct rtllib_device
*ieee
)
198 struct rt_hi_throughput
*pHTInfo
= ieee
->pHTInfo
;
201 if (pHTInfo
->IOTAction
& HT_IOT_ACT_MGNT_USE_CCK_6M
)
204 rate
= ieee
->basic_rate
& 0x7f;
207 if (ieee
->mode
== IEEE_A
||
208 ieee
->mode
== IEEE_N_5G
||
209 (ieee
->mode
== IEEE_N_24G
&& !pHTInfo
->bCurSuppCCK
))
218 inline void softmac_mgmt_xmit(struct sk_buff
*skb
, struct rtllib_device
*ieee
)
221 short single
= ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
;
222 struct rtllib_hdr_3addr
*header
=
223 (struct rtllib_hdr_3addr
*) skb
->data
;
225 struct cb_desc
*tcb_desc
= (struct cb_desc
*)(skb
->cb
+ 8);
227 spin_lock_irqsave(&ieee
->lock
, flags
);
229 /* called with 2nd param 0, no mgmt lock required */
230 rtllib_sta_wakeup(ieee
, 0);
232 if (le16_to_cpu(header
->frame_ctl
) == RTLLIB_STYPE_BEACON
)
233 tcb_desc
->queue_index
= BEACON_QUEUE
;
235 tcb_desc
->queue_index
= MGNT_QUEUE
;
237 if (ieee
->disable_mgnt_queue
)
238 tcb_desc
->queue_index
= HIGH_QUEUE
;
240 tcb_desc
->data_rate
= MgntQuery_MgntFrameTxRate(ieee
);
241 tcb_desc
->RATRIndex
= 7;
242 tcb_desc
->bTxDisableRateFallBack
= 1;
243 tcb_desc
->bTxUseDriverAssingedRate
= 1;
245 if (ieee
->queue_stop
) {
246 enqueue_mgmt(ieee
, skb
);
248 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0]<<4);
250 if (ieee
->seq_ctrl
[0] == 0xFFF)
251 ieee
->seq_ctrl
[0] = 0;
255 /* avoid watchdog triggers */
256 ieee
->softmac_data_hard_start_xmit(skb
, ieee
->dev
,
260 spin_unlock_irqrestore(&ieee
->lock
, flags
);
262 spin_unlock_irqrestore(&ieee
->lock
, flags
);
263 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags
);
265 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
267 if (ieee
->seq_ctrl
[0] == 0xFFF)
268 ieee
->seq_ctrl
[0] = 0;
272 /* check whether the managed packet queued greater than 5 */
273 if (!ieee
->check_nic_enough_desc(ieee
->dev
, tcb_desc
->queue_index
) ||
274 (skb_queue_len(&ieee
->skb_waitQ
[tcb_desc
->queue_index
]) != 0) ||
275 (ieee
->queue_stop
)) {
276 /* insert the skb packet to the management queue */
277 /* as for the completion function, it does not need
278 * to check it any more.
280 printk(KERN_INFO
"%s():insert to waitqueue, queue_index"
281 ":%d!\n", __func__
, tcb_desc
->queue_index
);
282 skb_queue_tail(&ieee
->skb_waitQ
[tcb_desc
->queue_index
],
285 ieee
->softmac_hard_start_xmit(skb
, ieee
->dev
);
287 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags
);
291 inline void softmac_ps_mgmt_xmit(struct sk_buff
*skb
,
292 struct rtllib_device
*ieee
)
294 short single
= ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
;
295 struct rtllib_hdr_3addr
*header
=
296 (struct rtllib_hdr_3addr
*) skb
->data
;
298 struct cb_desc
*tcb_desc
= (struct cb_desc
*)(skb
->cb
+ 8);
300 fc
= le16_to_cpu(header
->frame_ctl
);
301 type
= WLAN_FC_GET_TYPE(fc
);
302 stype
= WLAN_FC_GET_STYPE(fc
);
305 if (stype
!= RTLLIB_STYPE_PSPOLL
)
306 tcb_desc
->queue_index
= MGNT_QUEUE
;
308 tcb_desc
->queue_index
= HIGH_QUEUE
;
310 if (ieee
->disable_mgnt_queue
)
311 tcb_desc
->queue_index
= HIGH_QUEUE
;
314 tcb_desc
->data_rate
= MgntQuery_MgntFrameTxRate(ieee
);
315 tcb_desc
->RATRIndex
= 7;
316 tcb_desc
->bTxDisableRateFallBack
= 1;
317 tcb_desc
->bTxUseDriverAssingedRate
= 1;
319 if (type
!= RTLLIB_FTYPE_CTL
) {
320 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
322 if (ieee
->seq_ctrl
[0] == 0xFFF)
323 ieee
->seq_ctrl
[0] = 0;
328 /* avoid watchdog triggers */
329 ieee
->softmac_data_hard_start_xmit(skb
, ieee
->dev
,
333 if (type
!= RTLLIB_FTYPE_CTL
) {
334 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
336 if (ieee
->seq_ctrl
[0] == 0xFFF)
337 ieee
->seq_ctrl
[0] = 0;
341 ieee
->softmac_hard_start_xmit(skb
, ieee
->dev
);
346 static inline struct sk_buff
*rtllib_probe_req(struct rtllib_device
*ieee
)
348 unsigned int len
, rate_len
;
351 struct rtllib_probe_request
*req
;
353 len
= ieee
->current_network
.ssid_len
;
355 rate_len
= rtllib_MFIE_rate_len(ieee
);
357 skb
= dev_alloc_skb(sizeof(struct rtllib_probe_request
) +
358 2 + len
+ rate_len
+ ieee
->tx_headroom
);
363 skb_reserve(skb
, ieee
->tx_headroom
);
365 req
= (struct rtllib_probe_request
*) skb_put(skb
,
366 sizeof(struct rtllib_probe_request
));
367 req
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_PROBE_REQ
);
368 req
->header
.duration_id
= 0;
370 memset(req
->header
.addr1
, 0xff, ETH_ALEN
);
371 memcpy(req
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
372 memset(req
->header
.addr3
, 0xff, ETH_ALEN
);
374 tag
= (u8
*) skb_put(skb
, len
+ 2 + rate_len
);
376 *tag
++ = MFIE_TYPE_SSID
;
378 memcpy(tag
, ieee
->current_network
.ssid
, len
);
381 rtllib_MFIE_Brate(ieee
, &tag
);
382 rtllib_MFIE_Grate(ieee
, &tag
);
387 struct sk_buff
*rtllib_get_beacon_(struct rtllib_device
*ieee
);
389 static void rtllib_send_beacon(struct rtllib_device
*ieee
)
395 skb
= rtllib_get_beacon_(ieee
);
398 softmac_mgmt_xmit(skb
, ieee
);
399 ieee
->softmac_stats
.tx_beacons
++;
402 if (ieee
->beacon_txing
&& ieee
->ieee_up
)
403 mod_timer(&ieee
->beacon_timer
, jiffies
+
404 (MSECS(ieee
->current_network
.beacon_interval
- 5)));
408 static void rtllib_send_beacon_cb(unsigned long _ieee
)
410 struct rtllib_device
*ieee
=
411 (struct rtllib_device
*) _ieee
;
414 spin_lock_irqsave(&ieee
->beacon_lock
, flags
);
415 rtllib_send_beacon(ieee
);
416 spin_unlock_irqrestore(&ieee
->beacon_lock
, flags
);
421 * Enable network monitor mode, all rx packets will be received.
423 void rtllib_EnableNetMonitorMode(struct net_device
*dev
,
426 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
428 printk(KERN_INFO
"========>Enter Monitor Mode\n");
430 ieee
->AllowAllDestAddrHandler(dev
, true, !bInitState
);
436 * Disable network network monitor mode, only packets destinated to
437 * us will be received.
439 void rtllib_DisableNetMonitorMode(struct net_device
*dev
,
442 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
444 printk(KERN_INFO
"========>Exit Monitor Mode\n");
446 ieee
->AllowAllDestAddrHandler(dev
, false, !bInitState
);
452 * This enables the specialized promiscuous mode required by Intel.
453 * In this mode, Intel intends to hear traffics from/to other STAs in the
454 * same BSS. Therefore we don't have to disable checking BSSID and we only need
455 * to allow all dest. BUT: if we enable checking BSSID then we can't recv
456 * packets from other STA.
458 void rtllib_EnableIntelPromiscuousMode(struct net_device
*dev
,
461 bool bFilterOutNonAssociatedBSSID
= false;
463 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
465 printk(KERN_INFO
"========>Enter Intel Promiscuous Mode\n");
467 ieee
->AllowAllDestAddrHandler(dev
, true, !bInitState
);
468 ieee
->SetHwRegHandler(dev
, HW_VAR_CECHK_BSSID
,
469 (u8
*)&bFilterOutNonAssociatedBSSID
);
471 ieee
->bNetPromiscuousMode
= true;
473 EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode
);
478 * This disables the specialized promiscuous mode required by Intel.
479 * See MgntEnableIntelPromiscuousMode for detail.
481 void rtllib_DisableIntelPromiscuousMode(struct net_device
*dev
,
484 bool bFilterOutNonAssociatedBSSID
= true;
486 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
488 printk(KERN_INFO
"========>Exit Intel Promiscuous Mode\n");
490 ieee
->AllowAllDestAddrHandler(dev
, false, !bInitState
);
491 ieee
->SetHwRegHandler(dev
, HW_VAR_CECHK_BSSID
,
492 (u8
*)&bFilterOutNonAssociatedBSSID
);
494 ieee
->bNetPromiscuousMode
= false;
496 EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode
);
498 static void rtllib_send_probe(struct rtllib_device
*ieee
, u8 is_mesh
)
502 skb
= rtllib_probe_req(ieee
);
504 softmac_mgmt_xmit(skb
, ieee
);
505 ieee
->softmac_stats
.tx_probe_rq
++;
510 void rtllib_send_probe_requests(struct rtllib_device
*ieee
, u8 is_mesh
)
512 if (ieee
->active_scan
&& (ieee
->softmac_features
&
513 IEEE_SOFTMAC_PROBERQ
)) {
514 rtllib_send_probe(ieee
, 0);
515 rtllib_send_probe(ieee
, 0);
519 static void rtllib_softmac_hint11d_wq(void *data
)
523 void rtllib_update_active_chan_map(struct rtllib_device
*ieee
)
525 memcpy(ieee
->active_channel_map
, GET_DOT11D_INFO(ieee
)->channel_map
,
526 MAX_CHANNEL_NUMBER
+1);
529 /* this performs syncro scan blocking the caller until all channels
530 * in the allowed channel map has been checked.
532 void rtllib_softmac_scan_syncro(struct rtllib_device
*ieee
, u8 is_mesh
)
534 union iwreq_data wrqu
;
537 rtllib_update_active_chan_map(ieee
);
539 ieee
->be_scan_inprogress
= true;
541 down(&ieee
->scan_sem
);
546 if (ch
> MAX_CHANNEL_NUMBER
)
547 goto out
; /* scan completed */
548 } while (!ieee
->active_channel_map
[ch
]);
550 /* this function can be called in two situations
551 * 1- We have switched to ad-hoc mode and we are
552 * performing a complete syncro scan before conclude
553 * there are no interesting cell and to create a
554 * new one. In this case the link state is
555 * RTLLIB_NOLINK until we found an interesting cell.
556 * If so the ieee8021_new_net, called by the RX path
557 * will set the state to RTLLIB_LINKED, so we stop
559 * 2- We are linked and the root uses run iwlist scan.
560 * So we switch to RTLLIB_LINKED_SCANNING to remember
561 * that we are still logically linked (not interested in
562 * new network events, despite for updating the net list,
563 * but we are temporarly 'unlinked' as the driver shall
564 * not filter RX frames and the channel is changing.
565 * So the only situation in which are interested is to check
566 * if the state become LINKED because of the #1 situation
569 if (ieee
->state
== RTLLIB_LINKED
)
571 if (ieee
->sync_scan_hurryup
) {
572 printk(KERN_INFO
"============>sync_scan_hurryup out\n");
576 ieee
->set_chan(ieee
->dev
, ch
);
577 if (ieee
->active_channel_map
[ch
] == 1)
578 rtllib_send_probe_requests(ieee
, 0);
580 /* this prevent excessive time wait when we
581 * need to wait for a syncro scan to end..
583 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME
);
586 ieee
->actscanning
= false;
587 ieee
->sync_scan_hurryup
= 0;
589 if (ieee
->state
>= RTLLIB_LINKED
) {
590 if (IS_DOT11D_ENABLE(ieee
))
591 DOT11D_ScanComplete(ieee
);
595 ieee
->be_scan_inprogress
= false;
597 memset(&wrqu
, 0, sizeof(wrqu
));
598 wireless_send_event(ieee
->dev
, SIOCGIWSCAN
, &wrqu
, NULL
);
601 static void rtllib_softmac_scan_wq(void *data
)
603 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
604 struct rtllib_device
, softmac_scan_wq
);
605 u8 last_channel
= ieee
->current_network
.channel
;
607 rtllib_update_active_chan_map(ieee
);
611 if (rtllib_act_scanning(ieee
, true))
614 down(&ieee
->scan_sem
);
616 if (ieee
->eRFPowerState
== eRfOff
) {
617 printk(KERN_INFO
"======>%s():rf state is eRfOff, return\n",
623 ieee
->current_network
.channel
=
624 (ieee
->current_network
.channel
+ 1) %
626 if (ieee
->scan_watch_dog
++ > MAX_CHANNEL_NUMBER
) {
627 if (!ieee
->active_channel_map
[ieee
->current_network
.channel
])
628 ieee
->current_network
.channel
= 6;
629 goto out
; /* no good chans */
631 } while (!ieee
->active_channel_map
[ieee
->current_network
.channel
]);
633 if (ieee
->scanning_continue
== 0)
636 ieee
->set_chan(ieee
->dev
, ieee
->current_network
.channel
);
638 if (ieee
->active_channel_map
[ieee
->current_network
.channel
] == 1)
639 rtllib_send_probe_requests(ieee
, 0);
641 queue_delayed_work_rsl(ieee
->wq
, &ieee
->softmac_scan_wq
,
642 MSECS(RTLLIB_SOFTMAC_SCAN_TIME
));
648 if (IS_DOT11D_ENABLE(ieee
))
649 DOT11D_ScanComplete(ieee
);
650 ieee
->current_network
.channel
= last_channel
;
653 ieee
->actscanning
= false;
654 ieee
->scan_watch_dog
= 0;
655 ieee
->scanning_continue
= 0;
661 static void rtllib_beacons_start(struct rtllib_device
*ieee
)
665 spin_lock_irqsave(&ieee
->beacon_lock
, flags
);
667 ieee
->beacon_txing
= 1;
668 rtllib_send_beacon(ieee
);
670 spin_unlock_irqrestore(&ieee
->beacon_lock
, flags
);
673 static void rtllib_beacons_stop(struct rtllib_device
*ieee
)
677 spin_lock_irqsave(&ieee
->beacon_lock
, flags
);
679 ieee
->beacon_txing
= 0;
680 del_timer_sync(&ieee
->beacon_timer
);
682 spin_unlock_irqrestore(&ieee
->beacon_lock
, flags
);
687 void rtllib_stop_send_beacons(struct rtllib_device
*ieee
)
689 if (ieee
->stop_send_beacons
)
690 ieee
->stop_send_beacons(ieee
->dev
);
691 if (ieee
->softmac_features
& IEEE_SOFTMAC_BEACONS
)
692 rtllib_beacons_stop(ieee
);
694 EXPORT_SYMBOL(rtllib_stop_send_beacons
);
697 void rtllib_start_send_beacons(struct rtllib_device
*ieee
)
699 if (ieee
->start_send_beacons
)
700 ieee
->start_send_beacons(ieee
->dev
);
701 if (ieee
->softmac_features
& IEEE_SOFTMAC_BEACONS
)
702 rtllib_beacons_start(ieee
);
704 EXPORT_SYMBOL(rtllib_start_send_beacons
);
707 static void rtllib_softmac_stop_scan(struct rtllib_device
*ieee
)
709 down(&ieee
->scan_sem
);
710 ieee
->scan_watch_dog
= 0;
711 if (ieee
->scanning_continue
== 1) {
712 ieee
->scanning_continue
= 0;
713 ieee
->actscanning
= false;
715 cancel_delayed_work(&ieee
->softmac_scan_wq
);
721 void rtllib_stop_scan(struct rtllib_device
*ieee
)
723 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
724 rtllib_softmac_stop_scan(ieee
);
726 if (ieee
->rtllib_stop_hw_scan
)
727 ieee
->rtllib_stop_hw_scan(ieee
->dev
);
730 EXPORT_SYMBOL(rtllib_stop_scan
);
732 void rtllib_stop_scan_syncro(struct rtllib_device
*ieee
)
734 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
735 ieee
->sync_scan_hurryup
= 1;
737 if (ieee
->rtllib_stop_hw_scan
)
738 ieee
->rtllib_stop_hw_scan(ieee
->dev
);
741 EXPORT_SYMBOL(rtllib_stop_scan_syncro
);
743 bool rtllib_act_scanning(struct rtllib_device
*ieee
, bool sync_scan
)
745 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
747 return ieee
->be_scan_inprogress
;
749 return ieee
->actscanning
|| ieee
->be_scan_inprogress
;
751 return test_bit(STATUS_SCANNING
, &ieee
->status
);
754 EXPORT_SYMBOL(rtllib_act_scanning
);
756 /* called with ieee->lock held */
757 static void rtllib_start_scan(struct rtllib_device
*ieee
)
759 RT_TRACE(COMP_DBG
, "===>%s()\n", __func__
);
760 if (ieee
->rtllib_ips_leave_wq
!= NULL
)
761 ieee
->rtllib_ips_leave_wq(ieee
->dev
);
763 if (IS_DOT11D_ENABLE(ieee
)) {
764 if (IS_COUNTRY_IE_VALID(ieee
))
765 RESET_CIE_WATCHDOG(ieee
);
767 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
768 if (ieee
->scanning_continue
== 0) {
769 ieee
->actscanning
= true;
770 ieee
->scanning_continue
= 1;
771 queue_delayed_work_rsl(ieee
->wq
,
772 &ieee
->softmac_scan_wq
, 0);
775 if (ieee
->rtllib_start_hw_scan
)
776 ieee
->rtllib_start_hw_scan(ieee
->dev
);
780 /* called with wx_sem held */
781 void rtllib_start_scan_syncro(struct rtllib_device
*ieee
, u8 is_mesh
)
783 if (IS_DOT11D_ENABLE(ieee
)) {
784 if (IS_COUNTRY_IE_VALID(ieee
))
785 RESET_CIE_WATCHDOG(ieee
);
787 ieee
->sync_scan_hurryup
= 0;
788 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
789 rtllib_softmac_scan_syncro(ieee
, is_mesh
);
791 if (ieee
->rtllib_start_hw_scan
)
792 ieee
->rtllib_start_hw_scan(ieee
->dev
);
795 EXPORT_SYMBOL(rtllib_start_scan_syncro
);
797 inline struct sk_buff
*rtllib_authentication_req(struct rtllib_network
*beacon
,
798 struct rtllib_device
*ieee
, int challengelen
, u8
*daddr
)
801 struct rtllib_authentication
*auth
;
804 len
= sizeof(struct rtllib_authentication
) + challengelen
+
805 ieee
->tx_headroom
+ 4;
806 skb
= dev_alloc_skb(len
);
811 skb_reserve(skb
, ieee
->tx_headroom
);
813 auth
= (struct rtllib_authentication
*)
814 skb_put(skb
, sizeof(struct rtllib_authentication
));
816 auth
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_AUTH
);
818 auth
->header
.frame_ctl
|= cpu_to_le16(RTLLIB_FCTL_WEP
);
820 auth
->header
.duration_id
= cpu_to_le16(0x013a);
821 memcpy(auth
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
822 memcpy(auth
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
823 memcpy(auth
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
824 if (ieee
->auth_mode
== 0)
825 auth
->algorithm
= WLAN_AUTH_OPEN
;
826 else if (ieee
->auth_mode
== 1)
827 auth
->algorithm
= cpu_to_le16(WLAN_AUTH_SHARED_KEY
);
828 else if (ieee
->auth_mode
== 2)
829 auth
->algorithm
= WLAN_AUTH_OPEN
;
830 auth
->transaction
= cpu_to_le16(ieee
->associate_seq
);
831 ieee
->associate_seq
++;
833 auth
->status
= cpu_to_le16(WLAN_STATUS_SUCCESS
);
838 static struct sk_buff
*rtllib_probe_resp(struct rtllib_device
*ieee
, u8
*dest
)
842 struct rtllib_probe_response
*beacon_buf
;
843 struct sk_buff
*skb
= NULL
;
845 int atim_len
, erp_len
;
846 struct lib80211_crypt_data
*crypt
;
848 char *ssid
= ieee
->current_network
.ssid
;
849 int ssid_len
= ieee
->current_network
.ssid_len
;
850 int rate_len
= ieee
->current_network
.rates_len
+2;
851 int rate_ex_len
= ieee
->current_network
.rates_ex_len
;
852 int wpa_ie_len
= ieee
->wpa_ie_len
;
853 u8 erpinfo_content
= 0;
855 u8
*tmp_ht_cap_buf
= NULL
;
856 u8 tmp_ht_cap_len
= 0;
857 u8
*tmp_ht_info_buf
= NULL
;
858 u8 tmp_ht_info_len
= 0;
859 struct rt_hi_throughput
*pHTInfo
= ieee
->pHTInfo
;
860 u8
*tmp_generic_ie_buf
= NULL
;
861 u8 tmp_generic_ie_len
= 0;
866 if (ieee
->current_network
.capability
& WLAN_CAPABILITY_IBSS
)
871 if ((ieee
->current_network
.mode
== IEEE_G
) ||
872 (ieee
->current_network
.mode
== IEEE_N_24G
&&
873 ieee
->pHTInfo
->bCurSuppCCK
)) {
876 if (ieee
->current_network
.buseprotection
)
877 erpinfo_content
|= ERP_UseProtection
;
881 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
882 encrypt
= ieee
->host_encrypt
&& crypt
&& crypt
->ops
&&
883 ((0 == strcmp(crypt
->ops
->name
, "R-WEP") || wpa_ie_len
));
884 if (ieee
->pHTInfo
->bCurrentHTSupport
) {
885 tmp_ht_cap_buf
= (u8
*) &(ieee
->pHTInfo
->SelfHTCap
);
886 tmp_ht_cap_len
= sizeof(ieee
->pHTInfo
->SelfHTCap
);
887 tmp_ht_info_buf
= (u8
*) &(ieee
->pHTInfo
->SelfHTInfo
);
888 tmp_ht_info_len
= sizeof(ieee
->pHTInfo
->SelfHTInfo
);
889 HTConstructCapabilityElement(ieee
, tmp_ht_cap_buf
,
890 &tmp_ht_cap_len
, encrypt
, false);
891 HTConstructInfoElement(ieee
, tmp_ht_info_buf
, &tmp_ht_info_len
,
894 if (pHTInfo
->bRegRT2RTAggregation
) {
895 tmp_generic_ie_buf
= ieee
->pHTInfo
->szRT2RTAggBuffer
;
897 sizeof(ieee
->pHTInfo
->szRT2RTAggBuffer
);
898 HTConstructRT2RTAggElement(ieee
, tmp_generic_ie_buf
,
899 &tmp_generic_ie_len
);
903 beacon_size
= sizeof(struct rtllib_probe_response
)+2+
904 ssid_len
+ 3 + rate_len
+ rate_ex_len
+ atim_len
+ erp_len
905 + wpa_ie_len
+ ieee
->tx_headroom
;
906 skb
= dev_alloc_skb(beacon_size
);
910 skb_reserve(skb
, ieee
->tx_headroom
);
912 beacon_buf
= (struct rtllib_probe_response
*) skb_put(skb
,
913 (beacon_size
- ieee
->tx_headroom
));
914 memcpy(beacon_buf
->header
.addr1
, dest
, ETH_ALEN
);
915 memcpy(beacon_buf
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
916 memcpy(beacon_buf
->header
.addr3
, ieee
->current_network
.bssid
, ETH_ALEN
);
918 beacon_buf
->header
.duration_id
= 0;
919 beacon_buf
->beacon_interval
=
920 cpu_to_le16(ieee
->current_network
.beacon_interval
);
921 beacon_buf
->capability
=
922 cpu_to_le16(ieee
->current_network
.capability
&
923 WLAN_CAPABILITY_IBSS
);
924 beacon_buf
->capability
|=
925 cpu_to_le16(ieee
->current_network
.capability
&
926 WLAN_CAPABILITY_SHORT_PREAMBLE
);
928 if (ieee
->short_slot
&& (ieee
->current_network
.capability
&
929 WLAN_CAPABILITY_SHORT_SLOT_TIME
))
930 beacon_buf
->capability
|=
931 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME
);
933 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
935 beacon_buf
->capability
|= cpu_to_le16(WLAN_CAPABILITY_PRIVACY
);
938 beacon_buf
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_PROBE_RESP
);
939 beacon_buf
->info_element
[0].id
= MFIE_TYPE_SSID
;
940 beacon_buf
->info_element
[0].len
= ssid_len
;
942 tag
= (u8
*) beacon_buf
->info_element
[0].data
;
944 memcpy(tag
, ssid
, ssid_len
);
948 *(tag
++) = MFIE_TYPE_RATES
;
949 *(tag
++) = rate_len
-2;
950 memcpy(tag
, ieee
->current_network
.rates
, rate_len
-2);
953 *(tag
++) = MFIE_TYPE_DS_SET
;
955 *(tag
++) = ieee
->current_network
.channel
;
959 *(tag
++) = MFIE_TYPE_IBSS_SET
;
961 val16
= ieee
->current_network
.atim_window
;
962 memcpy((u8
*)tag
, (u8
*)&val16
, 2);
967 *(tag
++) = MFIE_TYPE_ERP
;
969 *(tag
++) = erpinfo_content
;
972 *(tag
++) = MFIE_TYPE_RATES_EX
;
973 *(tag
++) = rate_ex_len
-2;
974 memcpy(tag
, ieee
->current_network
.rates_ex
, rate_ex_len
-2);
975 tag
+= rate_ex_len
-2;
979 if (ieee
->iw_mode
== IW_MODE_ADHOC
)
980 memcpy(&ieee
->wpa_ie
[14], &ieee
->wpa_ie
[8], 4);
981 memcpy(tag
, ieee
->wpa_ie
, ieee
->wpa_ie_len
);
982 tag
+= ieee
->wpa_ie_len
;
987 static struct sk_buff
*rtllib_assoc_resp(struct rtllib_device
*ieee
, u8
*dest
)
992 struct lib80211_crypt_data
*crypt
;
993 struct rtllib_assoc_response_frame
*assoc
;
996 unsigned int rate_len
= rtllib_MFIE_rate_len(ieee
);
997 int len
= sizeof(struct rtllib_assoc_response_frame
) + rate_len
+
1000 skb
= dev_alloc_skb(len
);
1005 skb_reserve(skb
, ieee
->tx_headroom
);
1007 assoc
= (struct rtllib_assoc_response_frame
*)
1008 skb_put(skb
, sizeof(struct rtllib_assoc_response_frame
));
1010 assoc
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP
);
1011 memcpy(assoc
->header
.addr1
, dest
, ETH_ALEN
);
1012 memcpy(assoc
->header
.addr3
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1013 memcpy(assoc
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1014 assoc
->capability
= cpu_to_le16(ieee
->iw_mode
== IW_MODE_MASTER
?
1015 WLAN_CAPABILITY_ESS
: WLAN_CAPABILITY_IBSS
);
1018 if (ieee
->short_slot
)
1019 assoc
->capability
|=
1020 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME
);
1022 if (ieee
->host_encrypt
)
1023 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
1027 encrypt
= (crypt
&& crypt
->ops
);
1030 assoc
->capability
|= cpu_to_le16(WLAN_CAPABILITY_PRIVACY
);
1033 assoc
->aid
= cpu_to_le16(ieee
->assoc_id
);
1034 if (ieee
->assoc_id
== 0x2007)
1039 tag
= (u8
*) skb_put(skb
, rate_len
);
1040 rtllib_MFIE_Brate(ieee
, &tag
);
1041 rtllib_MFIE_Grate(ieee
, &tag
);
1046 static struct sk_buff
*rtllib_auth_resp(struct rtllib_device
*ieee
, int status
,
1049 struct sk_buff
*skb
= NULL
;
1050 struct rtllib_authentication
*auth
;
1051 int len
= ieee
->tx_headroom
+ sizeof(struct rtllib_authentication
) + 1;
1053 skb
= dev_alloc_skb(len
);
1057 skb
->len
= sizeof(struct rtllib_authentication
);
1059 skb_reserve(skb
, ieee
->tx_headroom
);
1061 auth
= (struct rtllib_authentication
*)
1062 skb_put(skb
, sizeof(struct rtllib_authentication
));
1064 auth
->status
= cpu_to_le16(status
);
1065 auth
->transaction
= cpu_to_le16(2);
1066 auth
->algorithm
= cpu_to_le16(WLAN_AUTH_OPEN
);
1068 memcpy(auth
->header
.addr3
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1069 memcpy(auth
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1070 memcpy(auth
->header
.addr1
, dest
, ETH_ALEN
);
1071 auth
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_AUTH
);
1077 static struct sk_buff
*rtllib_null_func(struct rtllib_device
*ieee
, short pwr
)
1079 struct sk_buff
*skb
;
1080 struct rtllib_hdr_3addr
*hdr
;
1082 skb
= dev_alloc_skb(sizeof(struct rtllib_hdr_3addr
)+ieee
->tx_headroom
);
1086 skb_reserve(skb
, ieee
->tx_headroom
);
1088 hdr
= (struct rtllib_hdr_3addr
*)skb_put(skb
,
1089 sizeof(struct rtllib_hdr_3addr
));
1091 memcpy(hdr
->addr1
, ieee
->current_network
.bssid
, ETH_ALEN
);
1092 memcpy(hdr
->addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1093 memcpy(hdr
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
);
1095 hdr
->frame_ctl
= cpu_to_le16(RTLLIB_FTYPE_DATA
|
1096 RTLLIB_STYPE_NULLFUNC
| RTLLIB_FCTL_TODS
|
1097 (pwr
? RTLLIB_FCTL_PM
: 0));
1104 static struct sk_buff
*rtllib_pspoll_func(struct rtllib_device
*ieee
)
1106 struct sk_buff
*skb
;
1107 struct rtllib_pspoll_hdr
*hdr
;
1109 skb
= dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr
)+ieee
->tx_headroom
);
1113 skb_reserve(skb
, ieee
->tx_headroom
);
1115 hdr
= (struct rtllib_pspoll_hdr
*)skb_put(skb
,
1116 sizeof(struct rtllib_pspoll_hdr
));
1118 memcpy(hdr
->bssid
, ieee
->current_network
.bssid
, ETH_ALEN
);
1119 memcpy(hdr
->ta
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1121 hdr
->aid
= cpu_to_le16(ieee
->assoc_id
| 0xc000);
1122 hdr
->frame_ctl
= cpu_to_le16(RTLLIB_FTYPE_CTL
| RTLLIB_STYPE_PSPOLL
|
1129 static void rtllib_resp_to_assoc_rq(struct rtllib_device
*ieee
, u8
*dest
)
1131 struct sk_buff
*buf
= rtllib_assoc_resp(ieee
, dest
);
1134 softmac_mgmt_xmit(buf
, ieee
);
1138 static void rtllib_resp_to_auth(struct rtllib_device
*ieee
, int s
, u8
*dest
)
1140 struct sk_buff
*buf
= rtllib_auth_resp(ieee
, s
, dest
);
1143 softmac_mgmt_xmit(buf
, ieee
);
1147 static void rtllib_resp_to_probe(struct rtllib_device
*ieee
, u8
*dest
)
1149 struct sk_buff
*buf
= rtllib_probe_resp(ieee
, dest
);
1152 softmac_mgmt_xmit(buf
, ieee
);
1156 inline int SecIsInPMKIDList(struct rtllib_device
*ieee
, u8
*bssid
)
1161 if ((ieee
->PMKIDList
[i
].bUsed
) &&
1162 (memcmp(ieee
->PMKIDList
[i
].Bssid
, bssid
, ETH_ALEN
) == 0))
1165 } while (i
< NUM_PMKID_CACHE
);
1167 if (i
== NUM_PMKID_CACHE
)
1172 inline struct sk_buff
*rtllib_association_req(struct rtllib_network
*beacon
,
1173 struct rtllib_device
*ieee
)
1175 struct sk_buff
*skb
;
1176 struct rtllib_assoc_request_frame
*hdr
;
1179 u8
*ht_cap_buf
= NULL
;
1181 u8
*realtek_ie_buf
= NULL
;
1182 u8 realtek_ie_len
= 0;
1183 int wpa_ie_len
= ieee
->wpa_ie_len
;
1184 int wps_ie_len
= ieee
->wps_ie_len
;
1185 unsigned int ckip_ie_len
= 0;
1186 unsigned int ccxrm_ie_len
= 0;
1187 unsigned int cxvernum_ie_len
= 0;
1188 struct lib80211_crypt_data
*crypt
;
1192 unsigned int rate_len
= (beacon
->rates_len
?
1193 (beacon
->rates_len
+ 2) : 0) +
1194 (beacon
->rates_ex_len
? (beacon
->rates_ex_len
) +
1197 unsigned int wmm_info_len
= beacon
->qos_data
.supported
? 9 : 0;
1198 unsigned int turbo_info_len
= beacon
->Turbo_Enable
? 9 : 0;
1202 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
1204 encrypt
= ieee
->host_encrypt
&& crypt
&& crypt
->ops
&&
1205 ((0 == strcmp(crypt
->ops
->name
, "R-WEP") ||
1210 if ((ieee
->rtllib_ap_sec_type
&&
1211 (ieee
->rtllib_ap_sec_type(ieee
) & SEC_ALG_TKIP
)) ||
1212 ieee
->bForcedBgMode
) {
1213 ieee
->pHTInfo
->bEnableHT
= 0;
1214 ieee
->mode
= WIRELESS_MODE_G
;
1217 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1218 ht_cap_buf
= (u8
*)&(ieee
->pHTInfo
->SelfHTCap
);
1219 ht_cap_len
= sizeof(ieee
->pHTInfo
->SelfHTCap
);
1220 HTConstructCapabilityElement(ieee
, ht_cap_buf
, &ht_cap_len
,
1222 if (ieee
->pHTInfo
->bCurrentRT2RTAggregation
) {
1223 realtek_ie_buf
= ieee
->pHTInfo
->szRT2RTAggBuffer
;
1225 sizeof(ieee
->pHTInfo
->szRT2RTAggBuffer
);
1226 HTConstructRT2RTAggElement(ieee
, realtek_ie_buf
,
1231 if (beacon
->bCkipSupported
)
1233 if (beacon
->bCcxRmEnable
)
1235 if (beacon
->BssCcxVerNumber
>= 2)
1236 cxvernum_ie_len
= 5+2;
1238 PMKCacheIdx
= SecIsInPMKIDList(ieee
, ieee
->current_network
.bssid
);
1239 if (PMKCacheIdx
>= 0) {
1241 printk(KERN_INFO
"[PMK cache]: WPA2 IE length: %x\n",
1244 len
= sizeof(struct rtllib_assoc_request_frame
) + 2
1256 + ieee
->tx_headroom
;
1258 skb
= dev_alloc_skb(len
);
1263 skb_reserve(skb
, ieee
->tx_headroom
);
1265 hdr
= (struct rtllib_assoc_request_frame
*)
1266 skb_put(skb
, sizeof(struct rtllib_assoc_request_frame
) + 2);
1269 hdr
->header
.frame_ctl
= RTLLIB_STYPE_ASSOC_REQ
;
1270 hdr
->header
.duration_id
= cpu_to_le16(37);
1271 memcpy(hdr
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
1272 memcpy(hdr
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1273 memcpy(hdr
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
1275 memcpy(ieee
->ap_mac_addr
, beacon
->bssid
, ETH_ALEN
);
1277 hdr
->capability
= cpu_to_le16(WLAN_CAPABILITY_ESS
);
1278 if (beacon
->capability
& WLAN_CAPABILITY_PRIVACY
)
1279 hdr
->capability
|= cpu_to_le16(WLAN_CAPABILITY_PRIVACY
);
1281 if (beacon
->capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
1282 hdr
->capability
|= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE
);
1284 if (ieee
->short_slot
&&
1285 (beacon
->capability
&WLAN_CAPABILITY_SHORT_SLOT_TIME
))
1286 hdr
->capability
|= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME
);
1289 hdr
->listen_interval
= cpu_to_le16(beacon
->listen_interval
);
1291 hdr
->info_element
[0].id
= MFIE_TYPE_SSID
;
1293 hdr
->info_element
[0].len
= beacon
->ssid_len
;
1294 tag
= skb_put(skb
, beacon
->ssid_len
);
1295 memcpy(tag
, beacon
->ssid
, beacon
->ssid_len
);
1297 tag
= skb_put(skb
, rate_len
);
1299 if (beacon
->rates_len
) {
1300 *tag
++ = MFIE_TYPE_RATES
;
1301 *tag
++ = beacon
->rates_len
;
1302 for (i
= 0; i
< beacon
->rates_len
; i
++)
1303 *tag
++ = beacon
->rates
[i
];
1306 if (beacon
->rates_ex_len
) {
1307 *tag
++ = MFIE_TYPE_RATES_EX
;
1308 *tag
++ = beacon
->rates_ex_len
;
1309 for (i
= 0; i
< beacon
->rates_ex_len
; i
++)
1310 *tag
++ = beacon
->rates_ex
[i
];
1313 if (beacon
->bCkipSupported
) {
1314 static const u8 AironetIeOui
[] = {0x00, 0x01, 0x66};
1315 u8 CcxAironetBuf
[30];
1316 struct octet_string osCcxAironetIE
;
1318 memset(CcxAironetBuf
, 0, 30);
1319 osCcxAironetIE
.Octet
= CcxAironetBuf
;
1320 osCcxAironetIE
.Length
= sizeof(CcxAironetBuf
);
1321 memcpy(osCcxAironetIE
.Octet
, AironetIeOui
,
1322 sizeof(AironetIeOui
));
1324 osCcxAironetIE
.Octet
[IE_CISCO_FLAG_POSITION
] |=
1325 (SUPPORT_CKIP_PK
|SUPPORT_CKIP_MIC
);
1326 tag
= skb_put(skb
, ckip_ie_len
);
1327 *tag
++ = MFIE_TYPE_AIRONET
;
1328 *tag
++ = osCcxAironetIE
.Length
;
1329 memcpy(tag
, osCcxAironetIE
.Octet
, osCcxAironetIE
.Length
);
1330 tag
+= osCcxAironetIE
.Length
;
1333 if (beacon
->bCcxRmEnable
) {
1334 static const u8 CcxRmCapBuf
[] = {0x00, 0x40, 0x96, 0x01, 0x01,
1336 struct octet_string osCcxRmCap
;
1338 osCcxRmCap
.Octet
= (u8
*) CcxRmCapBuf
;
1339 osCcxRmCap
.Length
= sizeof(CcxRmCapBuf
);
1340 tag
= skb_put(skb
, ccxrm_ie_len
);
1341 *tag
++ = MFIE_TYPE_GENERIC
;
1342 *tag
++ = osCcxRmCap
.Length
;
1343 memcpy(tag
, osCcxRmCap
.Octet
, osCcxRmCap
.Length
);
1344 tag
+= osCcxRmCap
.Length
;
1347 if (beacon
->BssCcxVerNumber
>= 2) {
1348 u8 CcxVerNumBuf
[] = {0x00, 0x40, 0x96, 0x03, 0x00};
1349 struct octet_string osCcxVerNum
;
1351 CcxVerNumBuf
[4] = beacon
->BssCcxVerNumber
;
1352 osCcxVerNum
.Octet
= CcxVerNumBuf
;
1353 osCcxVerNum
.Length
= sizeof(CcxVerNumBuf
);
1354 tag
= skb_put(skb
, cxvernum_ie_len
);
1355 *tag
++ = MFIE_TYPE_GENERIC
;
1356 *tag
++ = osCcxVerNum
.Length
;
1357 memcpy(tag
, osCcxVerNum
.Octet
, osCcxVerNum
.Length
);
1358 tag
+= osCcxVerNum
.Length
;
1360 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1361 if (ieee
->pHTInfo
->ePeerHTSpecVer
!= HT_SPEC_VER_EWC
) {
1362 tag
= skb_put(skb
, ht_cap_len
);
1363 *tag
++ = MFIE_TYPE_HT_CAP
;
1364 *tag
++ = ht_cap_len
- 2;
1365 memcpy(tag
, ht_cap_buf
, ht_cap_len
- 2);
1366 tag
+= ht_cap_len
- 2;
1371 tag
= skb_put(skb
, ieee
->wpa_ie_len
);
1372 memcpy(tag
, ieee
->wpa_ie
, ieee
->wpa_ie_len
);
1374 if (PMKCacheIdx
>= 0) {
1375 tag
= skb_put(skb
, 18);
1378 memcpy((tag
+ 2), &ieee
->PMKIDList
[PMKCacheIdx
].PMKID
,
1383 tag
= skb_put(skb
, wmm_info_len
);
1384 rtllib_WMM_Info(ieee
, &tag
);
1387 if (wps_ie_len
&& ieee
->wps_ie
) {
1388 tag
= skb_put(skb
, wps_ie_len
);
1389 memcpy(tag
, ieee
->wps_ie
, wps_ie_len
);
1392 tag
= skb_put(skb
, turbo_info_len
);
1394 rtllib_TURBO_Info(ieee
, &tag
);
1396 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1397 if (ieee
->pHTInfo
->ePeerHTSpecVer
== HT_SPEC_VER_EWC
) {
1398 tag
= skb_put(skb
, ht_cap_len
);
1399 *tag
++ = MFIE_TYPE_GENERIC
;
1400 *tag
++ = ht_cap_len
- 2;
1401 memcpy(tag
, ht_cap_buf
, ht_cap_len
- 2);
1402 tag
+= ht_cap_len
- 2;
1405 if (ieee
->pHTInfo
->bCurrentRT2RTAggregation
) {
1406 tag
= skb_put(skb
, realtek_ie_len
);
1407 *tag
++ = MFIE_TYPE_GENERIC
;
1408 *tag
++ = realtek_ie_len
- 2;
1409 memcpy(tag
, realtek_ie_buf
, realtek_ie_len
- 2);
1413 kfree(ieee
->assocreq_ies
);
1414 ieee
->assocreq_ies
= NULL
;
1415 ies
= &(hdr
->info_element
[0].id
);
1416 ieee
->assocreq_ies_len
= (skb
->data
+ skb
->len
) - ies
;
1417 ieee
->assocreq_ies
= kmalloc(ieee
->assocreq_ies_len
, GFP_ATOMIC
);
1418 if (ieee
->assocreq_ies
)
1419 memcpy(ieee
->assocreq_ies
, ies
, ieee
->assocreq_ies_len
);
1421 printk(KERN_INFO
"%s()Warning: can't alloc memory for assocreq"
1422 "_ies\n", __func__
);
1423 ieee
->assocreq_ies_len
= 0;
1428 void rtllib_associate_abort(struct rtllib_device
*ieee
)
1430 unsigned long flags
;
1432 spin_lock_irqsave(&ieee
->lock
, flags
);
1434 ieee
->associate_seq
++;
1436 /* don't scan, and avoid to have the RX path possibily
1437 * try again to associate. Even do not react to AUTH or
1438 * ASSOC response. Just wait for the retry wq to be scheduled.
1439 * Here we will check if there are good nets to associate
1440 * with, so we retry or just get back to NO_LINK and scanning
1442 if (ieee
->state
== RTLLIB_ASSOCIATING_AUTHENTICATING
) {
1443 RTLLIB_DEBUG_MGMT("Authentication failed\n");
1444 ieee
->softmac_stats
.no_auth_rs
++;
1446 RTLLIB_DEBUG_MGMT("Association failed\n");
1447 ieee
->softmac_stats
.no_ass_rs
++;
1450 ieee
->state
= RTLLIB_ASSOCIATING_RETRY
;
1452 queue_delayed_work_rsl(ieee
->wq
, &ieee
->associate_retry_wq
,
1453 RTLLIB_SOFTMAC_ASSOC_RETRY_TIME
);
1455 spin_unlock_irqrestore(&ieee
->lock
, flags
);
1458 static void rtllib_associate_abort_cb(unsigned long dev
)
1460 rtllib_associate_abort((struct rtllib_device
*) dev
);
1463 static void rtllib_associate_step1(struct rtllib_device
*ieee
, u8
*daddr
)
1465 struct rtllib_network
*beacon
= &ieee
->current_network
;
1466 struct sk_buff
*skb
;
1468 RTLLIB_DEBUG_MGMT("Stopping scan\n");
1470 ieee
->softmac_stats
.tx_auth_rq
++;
1472 skb
= rtllib_authentication_req(beacon
, ieee
, 0, daddr
);
1475 rtllib_associate_abort(ieee
);
1477 ieee
->state
= RTLLIB_ASSOCIATING_AUTHENTICATING
;
1478 RTLLIB_DEBUG_MGMT("Sending authentication request\n");
1479 softmac_mgmt_xmit(skb
, ieee
);
1480 if (!timer_pending(&ieee
->associate_timer
)) {
1481 ieee
->associate_timer
.expires
= jiffies
+ (HZ
/ 2);
1482 add_timer(&ieee
->associate_timer
);
1487 static void rtllib_auth_challenge(struct rtllib_device
*ieee
, u8
*challenge
, int chlen
)
1490 struct sk_buff
*skb
;
1491 struct rtllib_network
*beacon
= &ieee
->current_network
;
1493 ieee
->associate_seq
++;
1494 ieee
->softmac_stats
.tx_auth_rq
++;
1496 skb
= rtllib_authentication_req(beacon
, ieee
, chlen
+ 2, beacon
->bssid
);
1499 rtllib_associate_abort(ieee
);
1501 c
= skb_put(skb
, chlen
+2);
1502 *(c
++) = MFIE_TYPE_CHALLENGE
;
1504 memcpy(c
, challenge
, chlen
);
1506 RTLLIB_DEBUG_MGMT("Sending authentication challenge "
1509 rtllib_encrypt_fragment(ieee
, skb
,
1510 sizeof(struct rtllib_hdr_3addr
));
1512 softmac_mgmt_xmit(skb
, ieee
);
1513 mod_timer(&ieee
->associate_timer
, jiffies
+ (HZ
/2));
1518 static void rtllib_associate_step2(struct rtllib_device
*ieee
)
1520 struct sk_buff
*skb
;
1521 struct rtllib_network
*beacon
= &ieee
->current_network
;
1523 del_timer_sync(&ieee
->associate_timer
);
1525 RTLLIB_DEBUG_MGMT("Sending association request\n");
1527 ieee
->softmac_stats
.tx_ass_rq
++;
1528 skb
= rtllib_association_req(beacon
, ieee
);
1530 rtllib_associate_abort(ieee
);
1532 softmac_mgmt_xmit(skb
, ieee
);
1533 mod_timer(&ieee
->associate_timer
, jiffies
+ (HZ
/2));
1538 static void rtllib_associate_complete_wq(void *data
)
1540 struct rtllib_device
*ieee
= (struct rtllib_device
*)
1541 container_of_work_rsl(data
,
1542 struct rtllib_device
,
1543 associate_complete_wq
);
1544 struct rt_pwr_save_ctrl
*pPSC
= (struct rt_pwr_save_ctrl
*)
1545 (&(ieee
->PowerSaveControl
));
1546 printk(KERN_INFO
"Associated successfully\n");
1547 if (!ieee
->is_silent_reset
) {
1548 printk(KERN_INFO
"normal associate\n");
1549 notify_wx_assoc_event(ieee
);
1552 netif_carrier_on(ieee
->dev
);
1553 ieee
->is_roaming
= false;
1554 if (rtllib_is_54g(&ieee
->current_network
) &&
1555 (ieee
->modulation
& RTLLIB_OFDM_MODULATION
)) {
1557 printk(KERN_INFO
"Using G rates:%d\n", ieee
->rate
);
1560 ieee
->SetWirelessMode(ieee
->dev
, IEEE_B
);
1561 printk(KERN_INFO
"Using B rates:%d\n", ieee
->rate
);
1563 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1564 printk(KERN_INFO
"Successfully associated, ht enabled\n");
1567 printk(KERN_INFO
"Successfully associated, ht not "
1568 "enabled(%d, %d)\n",
1569 ieee
->pHTInfo
->bCurrentHTSupport
,
1570 ieee
->pHTInfo
->bEnableHT
);
1571 memset(ieee
->dot11HTOperationalRateSet
, 0, 16);
1573 ieee
->LinkDetectInfo
.SlotNum
= 2 * (1 +
1574 ieee
->current_network
.beacon_interval
/
1576 if (ieee
->LinkDetectInfo
.NumRecvBcnInPeriod
== 0 ||
1577 ieee
->LinkDetectInfo
.NumRecvDataInPeriod
== 0) {
1578 ieee
->LinkDetectInfo
.NumRecvBcnInPeriod
= 1;
1579 ieee
->LinkDetectInfo
.NumRecvDataInPeriod
= 1;
1581 pPSC
->LpsIdleCount
= 0;
1582 ieee
->link_change(ieee
->dev
);
1584 if (ieee
->is_silent_reset
) {
1585 printk(KERN_INFO
"silent reset associate\n");
1586 ieee
->is_silent_reset
= false;
1589 if (ieee
->data_hard_resume
)
1590 ieee
->data_hard_resume(ieee
->dev
);
1594 static void rtllib_sta_send_associnfo(struct rtllib_device
*ieee
)
1598 static void rtllib_associate_complete(struct rtllib_device
*ieee
)
1600 del_timer_sync(&ieee
->associate_timer
);
1602 ieee
->state
= RTLLIB_LINKED
;
1603 rtllib_sta_send_associnfo(ieee
);
1605 queue_work_rsl(ieee
->wq
, &ieee
->associate_complete_wq
);
1608 static void rtllib_associate_procedure_wq(void *data
)
1610 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
1611 struct rtllib_device
,
1612 associate_procedure_wq
);
1613 rtllib_stop_scan_syncro(ieee
);
1614 if (ieee
->rtllib_ips_leave
!= NULL
)
1615 ieee
->rtllib_ips_leave(ieee
->dev
);
1616 down(&ieee
->wx_sem
);
1618 if (ieee
->data_hard_stop
)
1619 ieee
->data_hard_stop(ieee
->dev
);
1621 rtllib_stop_scan(ieee
);
1622 RT_TRACE(COMP_DBG
, "===>%s(), chan:%d\n", __func__
,
1623 ieee
->current_network
.channel
);
1624 HTSetConnectBwMode(ieee
, HT_CHANNEL_WIDTH_20
, HT_EXTCHNL_OFFSET_NO_EXT
);
1625 if (ieee
->eRFPowerState
== eRfOff
) {
1626 RT_TRACE(COMP_DBG
, "=============>%s():Rf state is eRfOff,"
1627 " schedule ipsleave wq again,return\n", __func__
);
1628 if (ieee
->rtllib_ips_leave_wq
!= NULL
)
1629 ieee
->rtllib_ips_leave_wq(ieee
->dev
);
1633 ieee
->associate_seq
= 1;
1635 rtllib_associate_step1(ieee
, ieee
->current_network
.bssid
);
1640 inline void rtllib_softmac_new_net(struct rtllib_device
*ieee
,
1641 struct rtllib_network
*net
)
1643 u8 tmp_ssid
[IW_ESSID_MAX_SIZE
+ 1];
1644 int tmp_ssid_len
= 0;
1646 short apset
, ssidset
, ssidbroad
, apmatch
, ssidmatch
;
1648 /* we are interested in new new only if we are not associated
1649 * and we are not associating / authenticating
1651 if (ieee
->state
!= RTLLIB_NOLINK
)
1654 if ((ieee
->iw_mode
== IW_MODE_INFRA
) && !(net
->capability
&
1655 WLAN_CAPABILITY_ESS
))
1658 if ((ieee
->iw_mode
== IW_MODE_ADHOC
) && !(net
->capability
&
1659 WLAN_CAPABILITY_IBSS
))
1662 if ((ieee
->iw_mode
== IW_MODE_ADHOC
) &&
1663 (net
->channel
> ieee
->ibss_maxjoin_chal
))
1665 if (ieee
->iw_mode
== IW_MODE_INFRA
|| ieee
->iw_mode
== IW_MODE_ADHOC
) {
1666 /* if the user specified the AP MAC, we need also the essid
1667 * This could be obtained by beacons or, if the network does not
1668 * broadcast it, it can be put manually.
1670 apset
= ieee
->wap_set
;
1671 ssidset
= ieee
->ssid_set
;
1672 ssidbroad
= !(net
->ssid_len
== 0 || net
->ssid
[0] == '\0');
1673 apmatch
= (memcmp(ieee
->current_network
.bssid
, net
->bssid
,
1676 ssidmatch
= (ieee
->current_network
.ssid_len
==
1677 net
->hidden_ssid_len
) &&
1678 (!strncmp(ieee
->current_network
.ssid
,
1679 net
->hidden_ssid
, net
->hidden_ssid_len
));
1680 if (net
->hidden_ssid_len
> 0) {
1681 strncpy(net
->ssid
, net
->hidden_ssid
,
1682 net
->hidden_ssid_len
);
1683 net
->ssid_len
= net
->hidden_ssid_len
;
1688 (ieee
->current_network
.ssid_len
== net
->ssid_len
) &&
1689 (!strncmp(ieee
->current_network
.ssid
, net
->ssid
,
1692 /* if the user set the AP check if match.
1693 * if the network does not broadcast essid we check the
1694 * user supplied ANY essid
1695 * if the network does broadcast and the user does not set
1697 * if the network does broadcast and the user did set essid
1698 * check if essid match
1699 * if the ap is not set, check that the user set the bssid
1700 * and the network does broadcast and that those two bssid match
1702 if ((apset
&& apmatch
&&
1703 ((ssidset
&& ssidbroad
&& ssidmatch
) ||
1704 (ssidbroad
&& !ssidset
) || (!ssidbroad
&& ssidset
))) ||
1705 (!apset
&& ssidset
&& ssidbroad
&& ssidmatch
) ||
1706 (ieee
->is_roaming
&& ssidset
&& ssidbroad
&& ssidmatch
)) {
1707 /* if the essid is hidden replace it with the
1708 * essid provided by the user.
1711 strncpy(tmp_ssid
, ieee
->current_network
.ssid
,
1713 tmp_ssid_len
= ieee
->current_network
.ssid_len
;
1715 memcpy(&ieee
->current_network
, net
,
1716 sizeof(struct rtllib_network
));
1718 strncpy(ieee
->current_network
.ssid
, tmp_ssid
,
1720 ieee
->current_network
.ssid_len
= tmp_ssid_len
;
1722 printk(KERN_INFO
"Linking with %s,channel:%d, qos:%d, "
1723 "myHT:%d, networkHT:%d, mode:%x cur_net.flags"
1724 ":0x%x\n", ieee
->current_network
.ssid
,
1725 ieee
->current_network
.channel
,
1726 ieee
->current_network
.qos_data
.supported
,
1727 ieee
->pHTInfo
->bEnableHT
,
1728 ieee
->current_network
.bssht
.bdSupportHT
,
1729 ieee
->current_network
.mode
,
1730 ieee
->current_network
.flags
);
1732 if ((rtllib_act_scanning(ieee
, false)) &&
1733 !(ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
))
1734 rtllib_stop_scan_syncro(ieee
);
1736 ieee
->hwscan_ch_bk
= ieee
->current_network
.channel
;
1737 HTResetIOTSetting(ieee
->pHTInfo
);
1739 if (ieee
->iw_mode
== IW_MODE_INFRA
) {
1740 /* Join the network for the first time */
1741 ieee
->AsocRetryCount
= 0;
1742 if ((ieee
->current_network
.qos_data
.supported
== 1) &&
1743 ieee
->current_network
.bssht
.bdSupportHT
)
1744 HTResetSelfAndSavePeerSetting(ieee
,
1745 &(ieee
->current_network
));
1747 ieee
->pHTInfo
->bCurrentHTSupport
=
1750 ieee
->state
= RTLLIB_ASSOCIATING
;
1751 if (ieee
->LedControlHandler
!= NULL
)
1752 ieee
->LedControlHandler(ieee
->dev
,
1753 LED_CTL_START_TO_LINK
);
1754 queue_delayed_work_rsl(ieee
->wq
,
1755 &ieee
->associate_procedure_wq
, 0);
1757 if (rtllib_is_54g(&ieee
->current_network
) &&
1758 (ieee
->modulation
& RTLLIB_OFDM_MODULATION
)) {
1760 ieee
->SetWirelessMode(ieee
->dev
, IEEE_G
);
1761 printk(KERN_INFO
"Using G rates\n");
1764 ieee
->SetWirelessMode(ieee
->dev
, IEEE_B
);
1765 printk(KERN_INFO
"Using B rates\n");
1767 memset(ieee
->dot11HTOperationalRateSet
, 0, 16);
1768 ieee
->state
= RTLLIB_LINKED
;
1774 void rtllib_softmac_check_all_nets(struct rtllib_device
*ieee
)
1776 unsigned long flags
;
1777 struct rtllib_network
*target
;
1779 spin_lock_irqsave(&ieee
->lock
, flags
);
1781 list_for_each_entry(target
, &ieee
->network_list
, list
) {
1783 /* if the state become different that NOLINK means
1784 * we had found what we are searching for
1787 if (ieee
->state
!= RTLLIB_NOLINK
)
1790 if (ieee
->scan_age
== 0 || time_after(target
->last_scanned
+
1791 ieee
->scan_age
, jiffies
))
1792 rtllib_softmac_new_net(ieee
, target
);
1794 spin_unlock_irqrestore(&ieee
->lock
, flags
);
1797 static inline u16
auth_parse(struct sk_buff
*skb
, u8
**challenge
, int *chlen
)
1799 struct rtllib_authentication
*a
;
1802 if (skb
->len
< (sizeof(struct rtllib_authentication
) -
1803 sizeof(struct rtllib_info_element
))) {
1804 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb
->len
);
1808 a
= (struct rtllib_authentication
*) skb
->data
;
1809 if (skb
->len
> (sizeof(struct rtllib_authentication
) + 3)) {
1810 t
= skb
->data
+ sizeof(struct rtllib_authentication
);
1812 if (*(t
++) == MFIE_TYPE_CHALLENGE
) {
1814 *challenge
= kmemdup(t
, *chlen
, GFP_ATOMIC
);
1819 return cpu_to_le16(a
->status
);
1822 static int auth_rq_parse(struct sk_buff
*skb
, u8
*dest
)
1824 struct rtllib_authentication
*a
;
1826 if (skb
->len
< (sizeof(struct rtllib_authentication
) -
1827 sizeof(struct rtllib_info_element
))) {
1828 RTLLIB_DEBUG_MGMT("invalid len in auth request: %d\n",
1832 a
= (struct rtllib_authentication
*) skb
->data
;
1834 memcpy(dest
, a
->header
.addr2
, ETH_ALEN
);
1836 if (le16_to_cpu(a
->algorithm
) != WLAN_AUTH_OPEN
)
1837 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG
;
1839 return WLAN_STATUS_SUCCESS
;
1842 static short probe_rq_parse(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
1849 struct rtllib_hdr_3addr
*header
=
1850 (struct rtllib_hdr_3addr
*) skb
->data
;
1853 if (skb
->len
< sizeof(struct rtllib_hdr_3addr
))
1854 return -1; /* corrupted */
1857 (memcmp(header
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
) != 0) &&
1858 (!is_broadcast_ether_addr(header
->addr3
));
1862 memcpy(src
, header
->addr2
, ETH_ALEN
);
1864 skbend
= (u8
*)skb
->data
+ skb
->len
;
1866 tag
= skb
->data
+ sizeof(struct rtllib_hdr_3addr
);
1868 while (tag
+ 1 < skbend
) {
1871 ssidlen
= *(tag
+ 1);
1874 tag
++; /* point to the len field */
1875 tag
= tag
+ *(tag
); /* point to the last data byte of the tag */
1876 tag
++; /* point to the next tag */
1883 return 1; /* ssid not found in tagged param */
1885 return !strncmp(ssid
, ieee
->current_network
.ssid
, ssidlen
);
1888 static int assoc_rq_parse(struct sk_buff
*skb
, u8
*dest
)
1890 struct rtllib_assoc_request_frame
*a
;
1892 if (skb
->len
< (sizeof(struct rtllib_assoc_request_frame
) -
1893 sizeof(struct rtllib_info_element
))) {
1895 RTLLIB_DEBUG_MGMT("invalid len in auth request:%d\n", skb
->len
);
1899 a
= (struct rtllib_assoc_request_frame
*) skb
->data
;
1901 memcpy(dest
, a
->header
.addr2
, ETH_ALEN
);
1906 static inline u16
assoc_parse(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
1909 struct rtllib_assoc_response_frame
*response_head
;
1912 if (skb
->len
< sizeof(struct rtllib_assoc_response_frame
)) {
1913 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb
->len
);
1917 response_head
= (struct rtllib_assoc_response_frame
*) skb
->data
;
1918 *aid
= le16_to_cpu(response_head
->aid
) & 0x3fff;
1920 status_code
= le16_to_cpu(response_head
->status
);
1921 if ((status_code
== WLAN_STATUS_ASSOC_DENIED_RATES
||
1922 status_code
== WLAN_STATUS_CAPS_UNSUPPORTED
) &&
1923 ((ieee
->mode
== IEEE_G
) &&
1924 (ieee
->current_network
.mode
== IEEE_N_24G
) &&
1925 (ieee
->AsocRetryCount
++ < (RT_ASOC_RETRY_LIMIT
-1)))) {
1926 ieee
->pHTInfo
->IOTAction
|= HT_IOT_ACT_PURE_N_MODE
;
1928 ieee
->AsocRetryCount
= 0;
1931 return le16_to_cpu(response_head
->status
);
1934 void rtllib_rx_probe_rq(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
1938 ieee
->softmac_stats
.rx_probe_rq
++;
1939 if (probe_rq_parse(ieee
, skb
, dest
) > 0) {
1940 ieee
->softmac_stats
.tx_probe_rs
++;
1941 rtllib_resp_to_probe(ieee
, dest
);
1945 static inline void rtllib_rx_auth_rq(struct rtllib_device
*ieee
,
1946 struct sk_buff
*skb
)
1951 ieee
->softmac_stats
.rx_auth_rq
++;
1953 status
= auth_rq_parse(skb
, dest
);
1955 rtllib_resp_to_auth(ieee
, status
, dest
);
1958 static inline void rtllib_rx_assoc_rq(struct rtllib_device
*ieee
,
1959 struct sk_buff
*skb
)
1964 ieee
->softmac_stats
.rx_ass_rq
++;
1965 if (assoc_rq_parse(skb
, dest
) != -1)
1966 rtllib_resp_to_assoc_rq(ieee
, dest
);
1968 printk(KERN_INFO
"New client associated: %pM\n", dest
);
1971 void rtllib_sta_ps_send_null_frame(struct rtllib_device
*ieee
, short pwr
)
1974 struct sk_buff
*buf
= rtllib_null_func(ieee
, pwr
);
1977 softmac_ps_mgmt_xmit(buf
, ieee
);
1979 EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame
);
1981 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device
*ieee
)
1983 struct sk_buff
*buf
= rtllib_pspoll_func(ieee
);
1986 softmac_ps_mgmt_xmit(buf
, ieee
);
1989 static short rtllib_sta_ps_sleep(struct rtllib_device
*ieee
, u64
*time
)
1991 int timeout
= ieee
->ps_timeout
;
1993 struct rt_pwr_save_ctrl
*pPSC
= (struct rt_pwr_save_ctrl
*)
1994 (&(ieee
->PowerSaveControl
));
1996 if (ieee
->LPSDelayCnt
) {
1997 ieee
->LPSDelayCnt
--;
2001 dtim
= ieee
->current_network
.dtim_data
;
2002 if (!(dtim
& RTLLIB_DTIM_VALID
))
2004 timeout
= ieee
->current_network
.beacon_interval
;
2005 ieee
->current_network
.dtim_data
= RTLLIB_DTIM_INVALID
;
2006 /* there's no need to nofity AP that I find you buffered
2007 * with broadcast packet */
2008 if (dtim
& (RTLLIB_DTIM_UCAST
& ieee
->ps
))
2011 if (!time_after(jiffies
, ieee
->dev
->trans_start
+ MSECS(timeout
)))
2013 if (!time_after(jiffies
, ieee
->last_rx_ps_time
+ MSECS(timeout
)))
2015 if ((ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
) &&
2016 (ieee
->mgmt_queue_tail
!= ieee
->mgmt_queue_head
))
2020 if (ieee
->bAwakePktSent
) {
2021 pPSC
->LPSAwakeIntvl
= 1;
2025 if (pPSC
->LPSAwakeIntvl
== 0)
2026 pPSC
->LPSAwakeIntvl
= 1;
2027 if (pPSC
->RegMaxLPSAwakeIntvl
== 0)
2029 else if (pPSC
->RegMaxLPSAwakeIntvl
== 0xFF)
2030 MaxPeriod
= ieee
->current_network
.dtim_period
;
2032 MaxPeriod
= pPSC
->RegMaxLPSAwakeIntvl
;
2033 pPSC
->LPSAwakeIntvl
= (pPSC
->LPSAwakeIntvl
>=
2034 MaxPeriod
) ? MaxPeriod
:
2035 (pPSC
->LPSAwakeIntvl
+ 1);
2038 u8 LPSAwakeIntvl_tmp
= 0;
2039 u8 period
= ieee
->current_network
.dtim_period
;
2040 u8 count
= ieee
->current_network
.tim
.tim_count
;
2043 if (pPSC
->LPSAwakeIntvl
> period
)
2044 LPSAwakeIntvl_tmp
= period
+
2045 (pPSC
->LPSAwakeIntvl
-
2047 ((pPSC
->LPSAwakeIntvl
-period
) %
2050 LPSAwakeIntvl_tmp
= pPSC
->LPSAwakeIntvl
;
2053 if (pPSC
->LPSAwakeIntvl
>
2054 ieee
->current_network
.tim
.tim_count
)
2055 LPSAwakeIntvl_tmp
= count
+
2056 (pPSC
->LPSAwakeIntvl
- count
) -
2057 ((pPSC
->LPSAwakeIntvl
-count
)%period
);
2059 LPSAwakeIntvl_tmp
= pPSC
->LPSAwakeIntvl
;
2062 *time
= ieee
->current_network
.last_dtim_sta_time
2063 + MSECS(ieee
->current_network
.beacon_interval
*
2073 static inline void rtllib_sta_ps(struct rtllib_device
*ieee
)
2077 unsigned long flags
, flags2
;
2079 spin_lock_irqsave(&ieee
->lock
, flags
);
2081 if ((ieee
->ps
== RTLLIB_PS_DISABLED
||
2082 ieee
->iw_mode
!= IW_MODE_INFRA
||
2083 ieee
->state
!= RTLLIB_LINKED
)) {
2084 RT_TRACE(COMP_DBG
, "=====>%s(): no need to ps,wake up!! "
2085 "ieee->ps is %d, ieee->iw_mode is %d, ieee->state"
2086 " is %d\n", __func__
, ieee
->ps
, ieee
->iw_mode
,
2088 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2089 rtllib_sta_wakeup(ieee
, 1);
2091 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2093 sleep
= rtllib_sta_ps_sleep(ieee
, &time
);
2094 /* 2 wake, 1 sleep, 0 do nothing */
2098 if (ieee
->sta_sleep
== LPS_IS_SLEEP
) {
2099 ieee
->enter_sleep_state(ieee
->dev
, time
);
2100 } else if (ieee
->sta_sleep
== LPS_IS_WAKE
) {
2101 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2103 if (ieee
->ps_is_queue_empty(ieee
->dev
)) {
2104 ieee
->sta_sleep
= LPS_WAIT_NULL_DATA_SEND
;
2105 ieee
->ack_tx_to_ieee
= 1;
2106 rtllib_sta_ps_send_null_frame(ieee
, 1);
2107 ieee
->ps_time
= time
;
2109 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2113 ieee
->bAwakePktSent
= false;
2115 } else if (sleep
== 2) {
2116 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2118 rtllib_sta_wakeup(ieee
, 1);
2120 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2124 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2128 void rtllib_sta_wakeup(struct rtllib_device
*ieee
, short nl
)
2130 if (ieee
->sta_sleep
== LPS_IS_WAKE
) {
2132 if (ieee
->pHTInfo
->IOTAction
&
2133 HT_IOT_ACT_NULL_DATA_POWER_SAVING
) {
2134 ieee
->ack_tx_to_ieee
= 1;
2135 rtllib_sta_ps_send_null_frame(ieee
, 0);
2137 ieee
->ack_tx_to_ieee
= 1;
2138 rtllib_sta_ps_send_pspoll_frame(ieee
);
2145 if (ieee
->sta_sleep
== LPS_IS_SLEEP
)
2146 ieee
->sta_wake_up(ieee
->dev
);
2148 if (ieee
->pHTInfo
->IOTAction
&
2149 HT_IOT_ACT_NULL_DATA_POWER_SAVING
) {
2150 ieee
->ack_tx_to_ieee
= 1;
2151 rtllib_sta_ps_send_null_frame(ieee
, 0);
2153 ieee
->ack_tx_to_ieee
= 1;
2154 ieee
->polling
= true;
2155 rtllib_sta_ps_send_pspoll_frame(ieee
);
2159 ieee
->sta_sleep
= LPS_IS_WAKE
;
2160 ieee
->polling
= false;
2164 void rtllib_ps_tx_ack(struct rtllib_device
*ieee
, short success
)
2166 unsigned long flags
, flags2
;
2168 spin_lock_irqsave(&ieee
->lock
, flags
);
2170 if (ieee
->sta_sleep
== LPS_WAIT_NULL_DATA_SEND
) {
2171 /* Null frame with PS bit set */
2173 ieee
->sta_sleep
= LPS_IS_SLEEP
;
2174 ieee
->enter_sleep_state(ieee
->dev
, ieee
->ps_time
);
2176 /* if the card report not success we can't be sure the AP
2177 * has not RXed so we can't assume the AP believe us awake
2179 } else {/* 21112005 - tx again null without PS bit if lost */
2181 if ((ieee
->sta_sleep
== LPS_IS_WAKE
) && !success
) {
2182 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2183 if (ieee
->pHTInfo
->IOTAction
&
2184 HT_IOT_ACT_NULL_DATA_POWER_SAVING
)
2185 rtllib_sta_ps_send_null_frame(ieee
, 0);
2187 rtllib_sta_ps_send_pspoll_frame(ieee
);
2188 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2191 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2193 EXPORT_SYMBOL(rtllib_ps_tx_ack
);
2195 static void rtllib_process_action(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
2197 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2198 u8
*act
= rtllib_get_payload((struct rtllib_hdr
*)header
);
2202 RTLLIB_DEBUG(RTLLIB_DL_ERR
, "error to get payload of "
2213 rtllib_rx_ADDBAReq(ieee
, skb
);
2216 rtllib_rx_ADDBARsp(ieee
, skb
);
2219 rtllib_rx_DELBA(ieee
, skb
);
2229 inline int rtllib_rx_assoc_resp(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
2230 struct rtllib_rx_stats
*rx_stats
)
2235 struct rtllib_assoc_response_frame
*assoc_resp
;
2236 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2238 RTLLIB_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
2239 WLAN_FC_GET_STYPE(header
->frame_ctl
));
2241 if ((ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) &&
2242 ieee
->state
== RTLLIB_ASSOCIATING_AUTHENTICATED
&&
2243 (ieee
->iw_mode
== IW_MODE_INFRA
)) {
2244 errcode
= assoc_parse(ieee
, skb
, &aid
);
2246 struct rtllib_network
*network
=
2247 kzalloc(sizeof(struct rtllib_network
),
2252 ieee
->state
= RTLLIB_LINKED
;
2253 ieee
->assoc_id
= aid
;
2254 ieee
->softmac_stats
.rx_ass_ok
++;
2255 /* station support qos */
2256 /* Let the register setting default with Legacy station */
2257 assoc_resp
= (struct rtllib_assoc_response_frame
*)skb
->data
;
2258 if (ieee
->current_network
.qos_data
.supported
== 1) {
2259 if (rtllib_parse_info_param(ieee
, assoc_resp
->info_element
,
2260 rx_stats
->len
- sizeof(*assoc_resp
),
2261 network
, rx_stats
)) {
2265 memcpy(ieee
->pHTInfo
->PeerHTCapBuf
,
2266 network
->bssht
.bdHTCapBuf
,
2267 network
->bssht
.bdHTCapLen
);
2268 memcpy(ieee
->pHTInfo
->PeerHTInfoBuf
,
2269 network
->bssht
.bdHTInfoBuf
,
2270 network
->bssht
.bdHTInfoLen
);
2271 if (ieee
->handle_assoc_response
!= NULL
)
2272 ieee
->handle_assoc_response(ieee
->dev
,
2273 (struct rtllib_assoc_response_frame
*)header
,
2278 kfree(ieee
->assocresp_ies
);
2279 ieee
->assocresp_ies
= NULL
;
2280 ies
= &(assoc_resp
->info_element
[0].id
);
2281 ieee
->assocresp_ies_len
= (skb
->data
+ skb
->len
) - ies
;
2282 ieee
->assocresp_ies
= kmalloc(ieee
->assocresp_ies_len
,
2284 if (ieee
->assocresp_ies
)
2285 memcpy(ieee
->assocresp_ies
, ies
,
2286 ieee
->assocresp_ies_len
);
2288 printk(KERN_INFO
"%s()Warning: can't alloc "
2289 "memory for assocresp_ies\n", __func__
);
2290 ieee
->assocresp_ies_len
= 0;
2292 rtllib_associate_complete(ieee
);
2294 /* aid could not been allocated */
2295 ieee
->softmac_stats
.rx_ass_err
++;
2296 printk(KERN_INFO
"Association response status code 0x%x\n",
2299 "Association response status code 0x%x\n",
2301 if (ieee
->AsocRetryCount
< RT_ASOC_RETRY_LIMIT
)
2302 queue_delayed_work_rsl(ieee
->wq
,
2303 &ieee
->associate_procedure_wq
, 0);
2305 rtllib_associate_abort(ieee
);
2311 inline int rtllib_rx_auth(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
2312 struct rtllib_rx_stats
*rx_stats
)
2317 bool bSupportNmode
= true, bHalfSupportNmode
= false;
2319 if (ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) {
2320 if (ieee
->state
== RTLLIB_ASSOCIATING_AUTHENTICATING
&&
2321 (ieee
->iw_mode
== IW_MODE_INFRA
)) {
2322 RTLLIB_DEBUG_MGMT("Received authentication response");
2324 errcode
= auth_parse(skb
, &challenge
, &chlen
);
2326 if (ieee
->open_wep
|| !challenge
) {
2327 ieee
->state
= RTLLIB_ASSOCIATING_AUTHENTICATED
;
2328 ieee
->softmac_stats
.rx_auth_rs_ok
++;
2329 if (!(ieee
->pHTInfo
->IOTAction
&
2330 HT_IOT_ACT_PURE_N_MODE
)) {
2331 if (!ieee
->GetNmodeSupportBySecCfg(ieee
->dev
)) {
2332 if (IsHTHalfNmodeAPs(ieee
)) {
2333 bSupportNmode
= true;
2334 bHalfSupportNmode
= true;
2336 bSupportNmode
= false;
2337 bHalfSupportNmode
= false;
2341 /* Dummy wirless mode setting to avoid
2342 * encryption issue */
2343 if (bSupportNmode
) {
2344 ieee
->SetWirelessMode(ieee
->dev
,
2345 ieee
->current_network
.mode
);
2348 ieee
->SetWirelessMode(ieee
->dev
,
2352 if (ieee
->current_network
.mode
==
2353 IEEE_N_24G
&& bHalfSupportNmode
) {
2354 printk(KERN_INFO
"======>enter "
2356 ieee
->bHalfWirelessN24GMode
=
2359 ieee
->bHalfWirelessN24GMode
=
2362 rtllib_associate_step2(ieee
);
2364 rtllib_auth_challenge(ieee
, challenge
,
2368 ieee
->softmac_stats
.rx_auth_rs_err
++;
2369 RTLLIB_DEBUG_MGMT("Authentication respose"
2370 " status code 0x%x", errcode
);
2372 printk(KERN_INFO
"Authentication respose "
2373 "status code 0x%x", errcode
);
2374 rtllib_associate_abort(ieee
);
2377 } else if (ieee
->iw_mode
== IW_MODE_MASTER
) {
2378 rtllib_rx_auth_rq(ieee
, skb
);
2384 inline int rtllib_rx_deauth(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
2386 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2388 if (memcmp(header
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
) != 0)
2391 /* FIXME for now repeat all the association procedure
2392 * both for disassociation and deauthentication
2394 if ((ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) &&
2395 ieee
->state
== RTLLIB_LINKED
&&
2396 (ieee
->iw_mode
== IW_MODE_INFRA
)) {
2397 printk(KERN_INFO
"==========>received disassoc/deauth(%x) "
2398 "frame, reason code:%x\n",
2399 WLAN_FC_GET_STYPE(header
->frame_ctl
),
2400 ((struct rtllib_disassoc
*)skb
->data
)->reason
);
2401 ieee
->state
= RTLLIB_ASSOCIATING
;
2402 ieee
->softmac_stats
.reassoc
++;
2403 ieee
->is_roaming
= true;
2404 ieee
->LinkDetectInfo
.bBusyTraffic
= false;
2405 rtllib_disassociate(ieee
);
2406 RemovePeerTS(ieee
, header
->addr2
);
2407 if (ieee
->LedControlHandler
!= NULL
)
2408 ieee
->LedControlHandler(ieee
->dev
,
2409 LED_CTL_START_TO_LINK
);
2411 if (!(ieee
->rtllib_ap_sec_type(ieee
) &
2412 (SEC_ALG_CCMP
|SEC_ALG_TKIP
)))
2413 queue_delayed_work_rsl(ieee
->wq
,
2414 &ieee
->associate_procedure_wq
, 5);
2419 inline int rtllib_rx_frame_softmac(struct rtllib_device
*ieee
,
2420 struct sk_buff
*skb
,
2421 struct rtllib_rx_stats
*rx_stats
, u16 type
,
2424 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2426 if (!ieee
->proto_started
)
2429 switch (WLAN_FC_GET_STYPE(header
->frame_ctl
)) {
2430 case RTLLIB_STYPE_ASSOC_RESP
:
2431 case RTLLIB_STYPE_REASSOC_RESP
:
2432 if (rtllib_rx_assoc_resp(ieee
, skb
, rx_stats
) == 1)
2435 case RTLLIB_STYPE_ASSOC_REQ
:
2436 case RTLLIB_STYPE_REASSOC_REQ
:
2437 if ((ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) &&
2438 ieee
->iw_mode
== IW_MODE_MASTER
)
2439 rtllib_rx_assoc_rq(ieee
, skb
);
2441 case RTLLIB_STYPE_AUTH
:
2442 rtllib_rx_auth(ieee
, skb
, rx_stats
);
2444 case RTLLIB_STYPE_DISASSOC
:
2445 case RTLLIB_STYPE_DEAUTH
:
2446 rtllib_rx_deauth(ieee
, skb
);
2448 case RTLLIB_STYPE_MANAGE_ACT
:
2449 rtllib_process_action(ieee
, skb
);
2458 /* following are for a simpler TX queue management.
2459 * Instead of using netif_[stop/wake]_queue the driver
2460 * will use these two functions (plus a reset one), that
2461 * will internally use the kernel netif_* and takes
2462 * care of the ieee802.11 fragmentation.
2463 * So the driver receives a fragment per time and might
2464 * call the stop function when it wants to not
2465 * have enough room to TX an entire packet.
2466 * This might be useful if each fragment needs it's own
2467 * descriptor, thus just keep a total free memory > than
2468 * the max fragmentation threshold is not enough.. If the
2469 * ieee802.11 stack passed a TXB struct then you need
2470 * to keep N free descriptors where
2471 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
2472 * In this way you need just one and the 802.11 stack
2473 * will take care of buffering fragments and pass them to
2474 * to the driver later, when it wakes the queue.
2476 void rtllib_softmac_xmit(struct rtllib_txb
*txb
, struct rtllib_device
*ieee
)
2479 unsigned int queue_index
= txb
->queue_index
;
2480 unsigned long flags
;
2482 struct cb_desc
*tcb_desc
= NULL
;
2483 unsigned long queue_len
= 0;
2485 spin_lock_irqsave(&ieee
->lock
, flags
);
2487 /* called with 2nd parm 0, no tx mgmt lock required */
2488 rtllib_sta_wakeup(ieee
, 0);
2490 /* update the tx status */
2491 tcb_desc
= (struct cb_desc
*)(txb
->fragments
[0]->cb
+
2493 if (tcb_desc
->bMulticast
)
2494 ieee
->stats
.multicast
++;
2496 /* if xmit available, just xmit it immediately, else just insert it to
2498 for (i
= 0; i
< txb
->nr_frags
; i
++) {
2499 queue_len
= skb_queue_len(&ieee
->skb_waitQ
[queue_index
]);
2500 if ((queue_len
!= 0) ||\
2501 (!ieee
->check_nic_enough_desc(ieee
->dev
, queue_index
)) ||
2502 (ieee
->queue_stop
)) {
2503 /* insert the skb packet to the wait queue */
2504 /* as for the completion function, it does not need
2505 * to check it any more.
2507 if (queue_len
< 200)
2508 skb_queue_tail(&ieee
->skb_waitQ
[queue_index
],
2511 kfree_skb(txb
->fragments
[i
]);
2513 ieee
->softmac_data_hard_start_xmit(
2515 ieee
->dev
, ieee
->rate
);
2519 rtllib_txb_free(txb
);
2521 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2525 /* called with ieee->lock acquired */
2526 static void rtllib_resume_tx(struct rtllib_device
*ieee
)
2530 for (i
= ieee
->tx_pending
.frag
; i
< ieee
->tx_pending
.txb
->nr_frags
;
2533 if (ieee
->queue_stop
) {
2534 ieee
->tx_pending
.frag
= i
;
2538 ieee
->softmac_data_hard_start_xmit(
2539 ieee
->tx_pending
.txb
->fragments
[i
],
2540 ieee
->dev
, ieee
->rate
);
2541 ieee
->stats
.tx_packets
++;
2545 rtllib_txb_free(ieee
->tx_pending
.txb
);
2546 ieee
->tx_pending
.txb
= NULL
;
2550 void rtllib_reset_queue(struct rtllib_device
*ieee
)
2552 unsigned long flags
;
2554 spin_lock_irqsave(&ieee
->lock
, flags
);
2555 init_mgmt_queue(ieee
);
2556 if (ieee
->tx_pending
.txb
) {
2557 rtllib_txb_free(ieee
->tx_pending
.txb
);
2558 ieee
->tx_pending
.txb
= NULL
;
2560 ieee
->queue_stop
= 0;
2561 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2564 EXPORT_SYMBOL(rtllib_reset_queue
);
2566 void rtllib_wake_queue(struct rtllib_device
*ieee
)
2569 unsigned long flags
;
2570 struct sk_buff
*skb
;
2571 struct rtllib_hdr_3addr
*header
;
2573 spin_lock_irqsave(&ieee
->lock
, flags
);
2574 if (!ieee
->queue_stop
)
2577 ieee
->queue_stop
= 0;
2579 if (ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
) {
2580 while (!ieee
->queue_stop
&& (skb
= dequeue_mgmt(ieee
))) {
2582 header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2584 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
2586 if (ieee
->seq_ctrl
[0] == 0xFFF)
2587 ieee
->seq_ctrl
[0] = 0;
2589 ieee
->seq_ctrl
[0]++;
2591 ieee
->softmac_data_hard_start_xmit(skb
, ieee
->dev
,
2595 if (!ieee
->queue_stop
&& ieee
->tx_pending
.txb
)
2596 rtllib_resume_tx(ieee
);
2598 if (!ieee
->queue_stop
&& netif_queue_stopped(ieee
->dev
)) {
2599 ieee
->softmac_stats
.swtxawake
++;
2600 netif_wake_queue(ieee
->dev
);
2604 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2608 void rtllib_stop_queue(struct rtllib_device
*ieee
)
2611 if (!netif_queue_stopped(ieee
->dev
)) {
2612 netif_stop_queue(ieee
->dev
);
2613 ieee
->softmac_stats
.swtxstop
++;
2615 ieee
->queue_stop
= 1;
2619 void rtllib_stop_all_queues(struct rtllib_device
*ieee
)
2623 for (i
= 0; i
< ieee
->dev
->num_tx_queues
; i
++)
2624 netdev_get_tx_queue(ieee
->dev
, i
)->trans_start
= jiffies
;
2626 netif_tx_stop_all_queues(ieee
->dev
);
2629 void rtllib_wake_all_queues(struct rtllib_device
*ieee
)
2631 netif_tx_wake_all_queues(ieee
->dev
);
2634 inline void rtllib_randomize_cell(struct rtllib_device
*ieee
)
2637 random_ether_addr(ieee
->current_network
.bssid
);
2640 /* called in user context only */
2641 void rtllib_start_master_bss(struct rtllib_device
*ieee
)
2645 if (ieee
->current_network
.ssid_len
== 0) {
2646 strncpy(ieee
->current_network
.ssid
,
2647 RTLLIB_DEFAULT_TX_ESSID
,
2650 ieee
->current_network
.ssid_len
=
2651 strlen(RTLLIB_DEFAULT_TX_ESSID
);
2655 memcpy(ieee
->current_network
.bssid
, ieee
->dev
->dev_addr
, ETH_ALEN
);
2657 ieee
->set_chan(ieee
->dev
, ieee
->current_network
.channel
);
2658 ieee
->state
= RTLLIB_LINKED
;
2659 ieee
->link_change(ieee
->dev
);
2660 notify_wx_assoc_event(ieee
);
2662 if (ieee
->data_hard_resume
)
2663 ieee
->data_hard_resume(ieee
->dev
);
2665 netif_carrier_on(ieee
->dev
);
2668 static void rtllib_start_monitor_mode(struct rtllib_device
*ieee
)
2670 /* reset hardware status */
2672 if (ieee
->data_hard_resume
)
2673 ieee
->data_hard_resume(ieee
->dev
);
2675 netif_carrier_on(ieee
->dev
);
2679 static void rtllib_start_ibss_wq(void *data
)
2681 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
2682 struct rtllib_device
, start_ibss_wq
);
2683 /* iwconfig mode ad-hoc will schedule this and return
2684 * on the other hand this will block further iwconfig SET
2685 * operations because of the wx_sem hold.
2686 * Anyway some most set operations set a flag to speed-up
2687 * (abort) this wq (when syncro scanning) before sleeping
2690 if (!ieee
->proto_started
) {
2691 printk(KERN_INFO
"==========oh driver down return\n");
2694 down(&ieee
->wx_sem
);
2696 if (ieee
->current_network
.ssid_len
== 0) {
2697 strcpy(ieee
->current_network
.ssid
, RTLLIB_DEFAULT_TX_ESSID
);
2698 ieee
->current_network
.ssid_len
= strlen(RTLLIB_DEFAULT_TX_ESSID
);
2702 ieee
->state
= RTLLIB_NOLINK
;
2703 ieee
->mode
= IEEE_G
;
2704 /* check if we have this cell in our network list */
2705 rtllib_softmac_check_all_nets(ieee
);
2708 /* if not then the state is not linked. Maybe the user switched to
2709 * ad-hoc mode just after being in monitor mode, or just after
2710 * being very few time in managed mode (so the card have had no
2711 * time to scan all the chans..) or we have just run up the iface
2712 * after setting ad-hoc mode. So we have to give another try..
2713 * Here, in ibss mode, should be safe to do this without extra care
2714 * (in bss mode we had to make sure no-one tried to associate when
2715 * we had just checked the ieee->state and we was going to start the
2716 * scan) because in ibss mode the rtllib_new_net function, when
2717 * finds a good net, just set the ieee->state to RTLLIB_LINKED,
2718 * so, at worst, we waste a bit of time to initiate an unneeded syncro
2719 * scan, that will stop at the first round because it sees the state
2722 if (ieee
->state
== RTLLIB_NOLINK
)
2723 rtllib_start_scan_syncro(ieee
, 0);
2725 /* the network definitively is not here.. create a new cell */
2726 if (ieee
->state
== RTLLIB_NOLINK
) {
2727 printk(KERN_INFO
"creating new IBSS cell\n");
2728 ieee
->current_network
.channel
= ieee
->IbssStartChnl
;
2730 rtllib_randomize_cell(ieee
);
2732 if (ieee
->modulation
& RTLLIB_CCK_MODULATION
) {
2734 ieee
->current_network
.rates_len
= 4;
2736 ieee
->current_network
.rates
[0] =
2737 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_1MB
;
2738 ieee
->current_network
.rates
[1] =
2739 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_2MB
;
2740 ieee
->current_network
.rates
[2] =
2741 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_5MB
;
2742 ieee
->current_network
.rates
[3] =
2743 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_11MB
;
2746 ieee
->current_network
.rates_len
= 0;
2748 if (ieee
->modulation
& RTLLIB_OFDM_MODULATION
) {
2749 ieee
->current_network
.rates_ex_len
= 8;
2751 ieee
->current_network
.rates_ex
[0] =
2752 RTLLIB_OFDM_RATE_6MB
;
2753 ieee
->current_network
.rates_ex
[1] =
2754 RTLLIB_OFDM_RATE_9MB
;
2755 ieee
->current_network
.rates_ex
[2] =
2756 RTLLIB_OFDM_RATE_12MB
;
2757 ieee
->current_network
.rates_ex
[3] =
2758 RTLLIB_OFDM_RATE_18MB
;
2759 ieee
->current_network
.rates_ex
[4] =
2760 RTLLIB_OFDM_RATE_24MB
;
2761 ieee
->current_network
.rates_ex
[5] =
2762 RTLLIB_OFDM_RATE_36MB
;
2763 ieee
->current_network
.rates_ex
[6] =
2764 RTLLIB_OFDM_RATE_48MB
;
2765 ieee
->current_network
.rates_ex
[7] =
2766 RTLLIB_OFDM_RATE_54MB
;
2770 ieee
->current_network
.rates_ex_len
= 0;
2774 ieee
->current_network
.qos_data
.supported
= 0;
2775 ieee
->SetWirelessMode(ieee
->dev
, IEEE_G
);
2776 ieee
->current_network
.mode
= ieee
->mode
;
2777 ieee
->current_network
.atim_window
= 0;
2778 ieee
->current_network
.capability
= WLAN_CAPABILITY_IBSS
;
2781 printk(KERN_INFO
"%s(): ieee->mode = %d\n", __func__
, ieee
->mode
);
2782 if ((ieee
->mode
== IEEE_N_24G
) || (ieee
->mode
== IEEE_N_5G
))
2783 HTUseDefaultSetting(ieee
);
2785 ieee
->pHTInfo
->bCurrentHTSupport
= false;
2787 ieee
->SetHwRegHandler(ieee
->dev
, HW_VAR_MEDIA_STATUS
,
2788 (u8
*)(&ieee
->state
));
2790 ieee
->state
= RTLLIB_LINKED
;
2791 ieee
->link_change(ieee
->dev
);
2793 HTSetConnectBwMode(ieee
, HT_CHANNEL_WIDTH_20
, HT_EXTCHNL_OFFSET_NO_EXT
);
2794 if (ieee
->LedControlHandler
!= NULL
)
2795 ieee
->LedControlHandler(ieee
->dev
, LED_CTL_LINK
);
2797 rtllib_start_send_beacons(ieee
);
2799 notify_wx_assoc_event(ieee
);
2801 if (ieee
->data_hard_resume
)
2802 ieee
->data_hard_resume(ieee
->dev
);
2804 netif_carrier_on(ieee
->dev
);
2809 inline void rtllib_start_ibss(struct rtllib_device
*ieee
)
2811 queue_delayed_work_rsl(ieee
->wq
, &ieee
->start_ibss_wq
, MSECS(150));
2814 /* this is called only in user context, with wx_sem held */
2815 void rtllib_start_bss(struct rtllib_device
*ieee
)
2817 unsigned long flags
;
2819 if (IS_DOT11D_ENABLE(ieee
) && !IS_COUNTRY_IE_VALID(ieee
)) {
2820 if (!ieee
->bGlobalDomain
)
2823 /* check if we have already found the net we
2824 * are interested in (if any).
2825 * if not (we are disassociated and we are not
2826 * in associating / authenticating phase) start the background scanning.
2828 rtllib_softmac_check_all_nets(ieee
);
2830 /* ensure no-one start an associating process (thus setting
2831 * the ieee->state to rtllib_ASSOCIATING) while we
2832 * have just checked it and we are going to enable scan.
2833 * The rtllib_new_net function is always called with
2834 * lock held (from both rtllib_softmac_check_all_nets and
2835 * the rx path), so we cannot be in the middle of such function
2837 spin_lock_irqsave(&ieee
->lock
, flags
);
2839 if (ieee
->state
== RTLLIB_NOLINK
)
2840 rtllib_start_scan(ieee
);
2841 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2844 static void rtllib_link_change_wq(void *data
)
2846 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
2847 struct rtllib_device
, link_change_wq
);
2848 ieee
->link_change(ieee
->dev
);
2850 /* called only in userspace context */
2851 void rtllib_disassociate(struct rtllib_device
*ieee
)
2853 netif_carrier_off(ieee
->dev
);
2854 if (ieee
->softmac_features
& IEEE_SOFTMAC_TX_QUEUE
)
2855 rtllib_reset_queue(ieee
);
2857 if (ieee
->data_hard_stop
)
2858 ieee
->data_hard_stop(ieee
->dev
);
2859 if (IS_DOT11D_ENABLE(ieee
))
2861 ieee
->state
= RTLLIB_NOLINK
;
2862 ieee
->is_set_key
= false;
2865 queue_delayed_work_rsl(ieee
->wq
, &ieee
->link_change_wq
, 0);
2867 notify_wx_assoc_event(ieee
);
2870 static void rtllib_associate_retry_wq(void *data
)
2872 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
2873 struct rtllib_device
, associate_retry_wq
);
2874 unsigned long flags
;
2876 down(&ieee
->wx_sem
);
2877 if (!ieee
->proto_started
)
2880 if (ieee
->state
!= RTLLIB_ASSOCIATING_RETRY
)
2883 /* until we do not set the state to RTLLIB_NOLINK
2884 * there are no possibility to have someone else trying
2885 * to start an association procedure (we get here with
2886 * ieee->state = RTLLIB_ASSOCIATING).
2887 * When we set the state to RTLLIB_NOLINK it is possible
2888 * that the RX path run an attempt to associate, but
2889 * both rtllib_softmac_check_all_nets and the
2890 * RX path works with ieee->lock held so there are no
2891 * problems. If we are still disassociated then start a scan.
2892 * the lock here is necessary to ensure no one try to start
2893 * an association procedure when we have just checked the
2894 * state and we are going to start the scan.
2896 ieee
->beinretry
= true;
2897 ieee
->state
= RTLLIB_NOLINK
;
2899 rtllib_softmac_check_all_nets(ieee
);
2901 spin_lock_irqsave(&ieee
->lock
, flags
);
2903 if (ieee
->state
== RTLLIB_NOLINK
)
2904 rtllib_start_scan(ieee
);
2905 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2907 ieee
->beinretry
= false;
2912 struct sk_buff
*rtllib_get_beacon_(struct rtllib_device
*ieee
)
2914 u8 broadcast_addr
[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2916 struct sk_buff
*skb
;
2917 struct rtllib_probe_response
*b
;
2919 skb
= rtllib_probe_resp(ieee
, broadcast_addr
);
2924 b
= (struct rtllib_probe_response
*) skb
->data
;
2925 b
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_BEACON
);
2931 struct sk_buff
*rtllib_get_beacon(struct rtllib_device
*ieee
)
2933 struct sk_buff
*skb
;
2934 struct rtllib_probe_response
*b
;
2936 skb
= rtllib_get_beacon_(ieee
);
2940 b
= (struct rtllib_probe_response
*) skb
->data
;
2941 b
->header
.seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
2943 if (ieee
->seq_ctrl
[0] == 0xFFF)
2944 ieee
->seq_ctrl
[0] = 0;
2946 ieee
->seq_ctrl
[0]++;
2950 EXPORT_SYMBOL(rtllib_get_beacon
);
2952 void rtllib_softmac_stop_protocol(struct rtllib_device
*ieee
, u8 mesh_flag
,
2955 rtllib_stop_scan_syncro(ieee
);
2956 down(&ieee
->wx_sem
);
2957 rtllib_stop_protocol(ieee
, shutdown
);
2960 EXPORT_SYMBOL(rtllib_softmac_stop_protocol
);
2963 void rtllib_stop_protocol(struct rtllib_device
*ieee
, u8 shutdown
)
2965 if (!ieee
->proto_started
)
2969 ieee
->proto_started
= 0;
2970 ieee
->proto_stoppping
= 1;
2971 if (ieee
->rtllib_ips_leave
!= NULL
)
2972 ieee
->rtllib_ips_leave(ieee
->dev
);
2975 rtllib_stop_send_beacons(ieee
);
2976 del_timer_sync(&ieee
->associate_timer
);
2977 cancel_delayed_work(&ieee
->associate_retry_wq
);
2978 cancel_delayed_work(&ieee
->start_ibss_wq
);
2979 cancel_delayed_work(&ieee
->link_change_wq
);
2980 rtllib_stop_scan(ieee
);
2982 if (ieee
->state
<= RTLLIB_ASSOCIATING_AUTHENTICATED
)
2983 ieee
->state
= RTLLIB_NOLINK
;
2985 if (ieee
->state
== RTLLIB_LINKED
) {
2986 if (ieee
->iw_mode
== IW_MODE_INFRA
)
2987 SendDisassociation(ieee
, 1, deauth_lv_ss
);
2988 rtllib_disassociate(ieee
);
2993 ieee
->proto_stoppping
= 0;
2995 kfree(ieee
->assocreq_ies
);
2996 ieee
->assocreq_ies
= NULL
;
2997 ieee
->assocreq_ies_len
= 0;
2998 kfree(ieee
->assocresp_ies
);
2999 ieee
->assocresp_ies
= NULL
;
3000 ieee
->assocresp_ies_len
= 0;
3003 void rtllib_softmac_start_protocol(struct rtllib_device
*ieee
, u8 mesh_flag
)
3005 down(&ieee
->wx_sem
);
3006 rtllib_start_protocol(ieee
);
3009 EXPORT_SYMBOL(rtllib_softmac_start_protocol
);
3011 void rtllib_start_protocol(struct rtllib_device
*ieee
)
3016 rtllib_update_active_chan_map(ieee
);
3018 if (ieee
->proto_started
)
3021 ieee
->proto_started
= 1;
3023 if (ieee
->current_network
.channel
== 0) {
3026 if (ch
> MAX_CHANNEL_NUMBER
)
3027 return; /* no channel found */
3028 } while (!ieee
->active_channel_map
[ch
]);
3029 ieee
->current_network
.channel
= ch
;
3032 if (ieee
->current_network
.beacon_interval
== 0)
3033 ieee
->current_network
.beacon_interval
= 100;
3035 for (i
= 0; i
< 17; i
++) {
3036 ieee
->last_rxseq_num
[i
] = -1;
3037 ieee
->last_rxfrag_num
[i
] = -1;
3038 ieee
->last_packet_time
[i
] = 0;
3041 if (ieee
->UpdateBeaconInterruptHandler
)
3042 ieee
->UpdateBeaconInterruptHandler(ieee
->dev
, false);
3045 /* if the user set the MAC of the ad-hoc cell and then
3046 * switch to managed mode, shall we make sure that association
3047 * attempts does not fail just because the user provide the essid
3048 * and the nic is still checking for the AP MAC ??
3050 if (ieee
->iw_mode
== IW_MODE_INFRA
) {
3051 rtllib_start_bss(ieee
);
3052 } else if (ieee
->iw_mode
== IW_MODE_ADHOC
) {
3053 if (ieee
->UpdateBeaconInterruptHandler
)
3054 ieee
->UpdateBeaconInterruptHandler(ieee
->dev
, true);
3056 rtllib_start_ibss(ieee
);
3058 } else if (ieee
->iw_mode
== IW_MODE_MASTER
) {
3059 rtllib_start_master_bss(ieee
);
3060 } else if (ieee
->iw_mode
== IW_MODE_MONITOR
) {
3061 rtllib_start_monitor_mode(ieee
);
3065 void rtllib_softmac_init(struct rtllib_device
*ieee
)
3069 memset(&ieee
->current_network
, 0, sizeof(struct rtllib_network
));
3071 ieee
->state
= RTLLIB_NOLINK
;
3072 for (i
= 0; i
< 5; i
++)
3073 ieee
->seq_ctrl
[i
] = 0;
3074 ieee
->pDot11dInfo
= kzalloc(sizeof(struct rt_dot11d_info
), GFP_ATOMIC
);
3075 if (!ieee
->pDot11dInfo
)
3076 RTLLIB_DEBUG(RTLLIB_DL_ERR
, "can't alloc memory for DOT11D\n");
3077 ieee
->LinkDetectInfo
.SlotIndex
= 0;
3078 ieee
->LinkDetectInfo
.SlotNum
= 2;
3079 ieee
->LinkDetectInfo
.NumRecvBcnInPeriod
= 0;
3080 ieee
->LinkDetectInfo
.NumRecvDataInPeriod
= 0;
3081 ieee
->LinkDetectInfo
.NumTxOkInPeriod
= 0;
3082 ieee
->LinkDetectInfo
.NumRxOkInPeriod
= 0;
3083 ieee
->LinkDetectInfo
.NumRxUnicastOkInPeriod
= 0;
3084 ieee
->bIsAggregateFrame
= false;
3086 ieee
->queue_stop
= 0;
3087 ieee
->scanning_continue
= 0;
3088 ieee
->softmac_features
= 0;
3091 ieee
->proto_started
= 0;
3092 ieee
->proto_stoppping
= 0;
3093 ieee
->basic_rate
= RTLLIB_DEFAULT_BASIC_RATE
;
3095 ieee
->ps
= RTLLIB_PS_DISABLED
;
3096 ieee
->sta_sleep
= LPS_IS_WAKE
;
3098 ieee
->Regdot11HTOperationalRateSet
[0] = 0xff;
3099 ieee
->Regdot11HTOperationalRateSet
[1] = 0xff;
3100 ieee
->Regdot11HTOperationalRateSet
[4] = 0x01;
3102 ieee
->Regdot11TxHTOperationalRateSet
[0] = 0xff;
3103 ieee
->Regdot11TxHTOperationalRateSet
[1] = 0xff;
3104 ieee
->Regdot11TxHTOperationalRateSet
[4] = 0x01;
3106 ieee
->FirstIe_InScan
= false;
3107 ieee
->actscanning
= false;
3108 ieee
->beinretry
= false;
3109 ieee
->is_set_key
= false;
3110 init_mgmt_queue(ieee
);
3112 ieee
->sta_edca_param
[0] = 0x0000A403;
3113 ieee
->sta_edca_param
[1] = 0x0000A427;
3114 ieee
->sta_edca_param
[2] = 0x005E4342;
3115 ieee
->sta_edca_param
[3] = 0x002F3262;
3116 ieee
->aggregation
= true;
3117 ieee
->enable_rx_imm_BA
= true;
3118 ieee
->tx_pending
.txb
= NULL
;
3120 _setup_timer(&ieee
->associate_timer
,
3121 rtllib_associate_abort_cb
,
3122 (unsigned long) ieee
);
3124 _setup_timer(&ieee
->beacon_timer
,
3125 rtllib_send_beacon_cb
,
3126 (unsigned long) ieee
);
3129 ieee
->wq
= create_workqueue(DRV_NAME
);
3131 INIT_DELAYED_WORK_RSL(&ieee
->link_change_wq
,
3132 (void *)rtllib_link_change_wq
, ieee
);
3133 INIT_DELAYED_WORK_RSL(&ieee
->start_ibss_wq
,
3134 (void *)rtllib_start_ibss_wq
, ieee
);
3135 INIT_WORK_RSL(&ieee
->associate_complete_wq
,
3136 (void *)rtllib_associate_complete_wq
, ieee
);
3137 INIT_DELAYED_WORK_RSL(&ieee
->associate_procedure_wq
,
3138 (void *)rtllib_associate_procedure_wq
, ieee
);
3139 INIT_DELAYED_WORK_RSL(&ieee
->softmac_scan_wq
,
3140 (void *)rtllib_softmac_scan_wq
, ieee
);
3141 INIT_DELAYED_WORK_RSL(&ieee
->softmac_hint11d_wq
,
3142 (void *)rtllib_softmac_hint11d_wq
, ieee
);
3143 INIT_DELAYED_WORK_RSL(&ieee
->associate_retry_wq
,
3144 (void *)rtllib_associate_retry_wq
, ieee
);
3145 INIT_WORK_RSL(&ieee
->wx_sync_scan_wq
, (void *)rtllib_wx_sync_scan_wq
,
3148 sema_init(&ieee
->wx_sem
, 1);
3149 sema_init(&ieee
->scan_sem
, 1);
3150 sema_init(&ieee
->ips_sem
, 1);
3152 spin_lock_init(&ieee
->mgmt_tx_lock
);
3153 spin_lock_init(&ieee
->beacon_lock
);
3155 tasklet_init(&ieee
->ps_task
,
3156 (void(*)(unsigned long)) rtllib_sta_ps
,
3157 (unsigned long)ieee
);
3161 void rtllib_softmac_free(struct rtllib_device
*ieee
)
3163 down(&ieee
->wx_sem
);
3164 kfree(ieee
->pDot11dInfo
);
3165 ieee
->pDot11dInfo
= NULL
;
3166 del_timer_sync(&ieee
->associate_timer
);
3168 cancel_delayed_work(&ieee
->associate_retry_wq
);
3169 destroy_workqueue(ieee
->wq
);
3171 tasklet_kill(&ieee
->ps_task
);
3174 /********************************************************
3175 * Start of WPA code. *
3176 * this is stolen from the ipw2200 driver *
3177 ********************************************************/
3180 static int rtllib_wpa_enable(struct rtllib_device
*ieee
, int value
)
3182 /* This is called when wpa_supplicant loads and closes the driver
3184 printk(KERN_INFO
"%s WPA\n", value
? "enabling" : "disabling");
3185 ieee
->wpa_enabled
= value
;
3186 memset(ieee
->ap_mac_addr
, 0, 6);
3191 static void rtllib_wpa_assoc_frame(struct rtllib_device
*ieee
, char *wpa_ie
,
3194 /* make sure WPA is enabled */
3195 rtllib_wpa_enable(ieee
, 1);
3197 rtllib_disassociate(ieee
);
3201 static int rtllib_wpa_mlme(struct rtllib_device
*ieee
, int command
, int reason
)
3207 case IEEE_MLME_STA_DEAUTH
:
3210 case IEEE_MLME_STA_DISASSOC
:
3211 rtllib_disassociate(ieee
);
3215 printk(KERN_INFO
"Unknown MLME request: %d\n", command
);
3223 static int rtllib_wpa_set_wpa_ie(struct rtllib_device
*ieee
,
3224 struct ieee_param
*param
, int plen
)
3228 if (param
->u
.wpa_ie
.len
> MAX_WPA_IE_LEN
||
3229 (param
->u
.wpa_ie
.len
&& param
->u
.wpa_ie
.data
== NULL
))
3232 if (param
->u
.wpa_ie
.len
) {
3233 buf
= kmemdup(param
->u
.wpa_ie
.data
, param
->u
.wpa_ie
.len
,
3238 kfree(ieee
->wpa_ie
);
3240 ieee
->wpa_ie_len
= param
->u
.wpa_ie
.len
;
3242 kfree(ieee
->wpa_ie
);
3243 ieee
->wpa_ie
= NULL
;
3244 ieee
->wpa_ie_len
= 0;
3247 rtllib_wpa_assoc_frame(ieee
, ieee
->wpa_ie
, ieee
->wpa_ie_len
);
3251 #define AUTH_ALG_OPEN_SYSTEM 0x1
3252 #define AUTH_ALG_SHARED_KEY 0x2
3253 #define AUTH_ALG_LEAP 0x4
3254 static int rtllib_wpa_set_auth_algs(struct rtllib_device
*ieee
, int value
)
3257 struct rtllib_security sec
= {
3258 .flags
= SEC_AUTH_MODE
,
3261 if (value
& AUTH_ALG_SHARED_KEY
) {
3262 sec
.auth_mode
= WLAN_AUTH_SHARED_KEY
;
3264 ieee
->auth_mode
= 1;
3265 } else if (value
& AUTH_ALG_OPEN_SYSTEM
) {
3266 sec
.auth_mode
= WLAN_AUTH_OPEN
;
3268 ieee
->auth_mode
= 0;
3269 } else if (value
& AUTH_ALG_LEAP
) {
3270 sec
.auth_mode
= WLAN_AUTH_LEAP
>> 6;
3272 ieee
->auth_mode
= 2;
3276 if (ieee
->set_security
)
3277 ieee
->set_security(ieee
->dev
, &sec
);
3282 static int rtllib_wpa_set_param(struct rtllib_device
*ieee
, u8 name
, u32 value
)
3285 unsigned long flags
;
3288 case IEEE_PARAM_WPA_ENABLED
:
3289 ret
= rtllib_wpa_enable(ieee
, value
);
3292 case IEEE_PARAM_TKIP_COUNTERMEASURES
:
3293 ieee
->tkip_countermeasures
= value
;
3296 case IEEE_PARAM_DROP_UNENCRYPTED
:
3300 * wpa_supplicant calls set_wpa_enabled when the driver
3301 * is loaded and unloaded, regardless of if WPA is being
3302 * used. No other calls are made which can be used to
3303 * determine if encryption will be used or not prior to
3304 * association being expected. If encryption is not being
3305 * used, drop_unencrypted is set to false, else true -- we
3306 * can use this to determine if the CAP_PRIVACY_ON bit should
3309 struct rtllib_security sec
= {
3310 .flags
= SEC_ENABLED
,
3313 ieee
->drop_unencrypted
= value
;
3314 /* We only change SEC_LEVEL for open mode. Others
3315 * are set by ipw_wpa_set_encryption.
3318 sec
.flags
|= SEC_LEVEL
;
3319 sec
.level
= SEC_LEVEL_0
;
3321 sec
.flags
|= SEC_LEVEL
;
3322 sec
.level
= SEC_LEVEL_1
;
3324 if (ieee
->set_security
)
3325 ieee
->set_security(ieee
->dev
, &sec
);
3329 case IEEE_PARAM_PRIVACY_INVOKED
:
3330 ieee
->privacy_invoked
= value
;
3333 case IEEE_PARAM_AUTH_ALGS
:
3334 ret
= rtllib_wpa_set_auth_algs(ieee
, value
);
3337 case IEEE_PARAM_IEEE_802_1X
:
3338 ieee
->ieee802_1x
= value
;
3340 case IEEE_PARAM_WPAX_SELECT
:
3341 spin_lock_irqsave(&ieee
->wpax_suitlist_lock
, flags
);
3342 spin_unlock_irqrestore(&ieee
->wpax_suitlist_lock
, flags
);
3346 printk(KERN_INFO
"Unknown WPA param: %d\n", name
);
3353 /* implementation borrowed from hostap driver */
3354 static int rtllib_wpa_set_encryption(struct rtllib_device
*ieee
,
3355 struct ieee_param
*param
, int param_len
,
3359 struct lib80211_crypto_ops
*ops
;
3360 struct lib80211_crypt_data
**crypt
;
3362 struct rtllib_security sec
= {
3366 param
->u
.crypt
.err
= 0;
3367 param
->u
.crypt
.alg
[IEEE_CRYPT_ALG_NAME_LEN
- 1] = '\0';
3370 (int) ((char *) param
->u
.crypt
.key
- (char *) param
) +
3371 param
->u
.crypt
.key_len
) {
3372 printk(KERN_INFO
"Len mismatch %d, %d\n", param_len
,
3373 param
->u
.crypt
.key_len
);
3376 if (is_broadcast_ether_addr(param
->sta_addr
)) {
3377 if (param
->u
.crypt
.idx
>= NUM_WEP_KEYS
)
3379 crypt
= &ieee
->crypt_info
.crypt
[param
->u
.crypt
.idx
];
3384 if (strcmp(param
->u
.crypt
.alg
, "none") == 0) {
3387 sec
.level
= SEC_LEVEL_0
;
3388 sec
.flags
|= SEC_ENABLED
| SEC_LEVEL
;
3389 lib80211_crypt_delayed_deinit(&ieee
->crypt_info
, crypt
);
3394 sec
.flags
|= SEC_ENABLED
;
3396 /* IPW HW cannot build TKIP MIC, host decryption still needed. */
3397 if (!(ieee
->host_encrypt
|| ieee
->host_decrypt
) &&
3398 strcmp(param
->u
.crypt
.alg
, "R-TKIP"))
3399 goto skip_host_crypt
;
3401 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3402 if (ops
== NULL
&& strcmp(param
->u
.crypt
.alg
, "R-WEP") == 0) {
3403 request_module("rtllib_crypt_wep");
3404 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3405 } else if (ops
== NULL
&& strcmp(param
->u
.crypt
.alg
, "R-TKIP") == 0) {
3406 request_module("rtllib_crypt_tkip");
3407 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3408 } else if (ops
== NULL
&& strcmp(param
->u
.crypt
.alg
, "R-CCMP") == 0) {
3409 request_module("rtllib_crypt_ccmp");
3410 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3413 printk(KERN_INFO
"unknown crypto alg '%s'\n",
3414 param
->u
.crypt
.alg
);
3415 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_UNKNOWN_ALG
;
3419 if (*crypt
== NULL
|| (*crypt
)->ops
!= ops
) {
3420 struct lib80211_crypt_data
*new_crypt
;
3422 lib80211_crypt_delayed_deinit(&ieee
->crypt_info
, crypt
);
3424 new_crypt
= kmalloc(sizeof(*new_crypt
), GFP_KERNEL
);
3425 if (new_crypt
== NULL
) {
3429 memset(new_crypt
, 0, sizeof(struct lib80211_crypt_data
));
3430 new_crypt
->ops
= ops
;
3433 new_crypt
->ops
->init(param
->u
.crypt
.idx
);
3435 if (new_crypt
->priv
== NULL
) {
3437 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_CRYPT_INIT_FAILED
;
3445 if (param
->u
.crypt
.key_len
> 0 && (*crypt
)->ops
->set_key
&&
3446 (*crypt
)->ops
->set_key(param
->u
.crypt
.key
,
3447 param
->u
.crypt
.key_len
, param
->u
.crypt
.seq
,
3448 (*crypt
)->priv
) < 0) {
3449 printk(KERN_INFO
"key setting failed\n");
3450 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_KEY_SET_FAILED
;
3456 if (param
->u
.crypt
.set_tx
) {
3457 ieee
->crypt_info
.tx_keyidx
= param
->u
.crypt
.idx
;
3458 sec
.active_key
= param
->u
.crypt
.idx
;
3459 sec
.flags
|= SEC_ACTIVE_KEY
;
3461 sec
.flags
&= ~SEC_ACTIVE_KEY
;
3463 if (param
->u
.crypt
.alg
!= NULL
) {
3464 memcpy(sec
.keys
[param
->u
.crypt
.idx
],
3466 param
->u
.crypt
.key_len
);
3467 sec
.key_sizes
[param
->u
.crypt
.idx
] = param
->u
.crypt
.key_len
;
3468 sec
.flags
|= (1 << param
->u
.crypt
.idx
);
3470 if (strcmp(param
->u
.crypt
.alg
, "R-WEP") == 0) {
3471 sec
.flags
|= SEC_LEVEL
;
3472 sec
.level
= SEC_LEVEL_1
;
3473 } else if (strcmp(param
->u
.crypt
.alg
, "R-TKIP") == 0) {
3474 sec
.flags
|= SEC_LEVEL
;
3475 sec
.level
= SEC_LEVEL_2
;
3476 } else if (strcmp(param
->u
.crypt
.alg
, "R-CCMP") == 0) {
3477 sec
.flags
|= SEC_LEVEL
;
3478 sec
.level
= SEC_LEVEL_3
;
3482 if (ieee
->set_security
)
3483 ieee
->set_security(ieee
->dev
, &sec
);
3485 /* Do not reset port if card is in Managed mode since resetting will
3486 * generate new IEEE 802.11 authentication which may end up in looping
3487 * with IEEE 802.1X. If your hardware requires a reset after WEP
3488 * configuration (for example... Prism2), implement the reset_port in
3489 * the callbacks structures used to initialize the 802.11 stack. */
3490 if (ieee
->reset_on_keychange
&&
3491 ieee
->iw_mode
!= IW_MODE_INFRA
&&
3493 ieee
->reset_port(ieee
->dev
)) {
3494 printk(KERN_INFO
"reset_port failed\n");
3495 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_CARD_CONF_FAILED
;
3502 inline struct sk_buff
*rtllib_disauth_skb(struct rtllib_network
*beacon
,
3503 struct rtllib_device
*ieee
, u16 asRsn
)
3505 struct sk_buff
*skb
;
3506 struct rtllib_disauth
*disauth
;
3507 int len
= sizeof(struct rtllib_disauth
) + ieee
->tx_headroom
;
3509 skb
= dev_alloc_skb(len
);
3513 skb_reserve(skb
, ieee
->tx_headroom
);
3515 disauth
= (struct rtllib_disauth
*) skb_put(skb
,
3516 sizeof(struct rtllib_disauth
));
3517 disauth
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_DEAUTH
);
3518 disauth
->header
.duration_id
= 0;
3520 memcpy(disauth
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
3521 memcpy(disauth
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
3522 memcpy(disauth
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
3524 disauth
->reason
= cpu_to_le16(asRsn
);
3528 inline struct sk_buff
*rtllib_disassociate_skb(struct rtllib_network
*beacon
,
3529 struct rtllib_device
*ieee
, u16 asRsn
)
3531 struct sk_buff
*skb
;
3532 struct rtllib_disassoc
*disass
;
3533 int len
= sizeof(struct rtllib_disassoc
) + ieee
->tx_headroom
;
3535 skb
= dev_alloc_skb(len
);
3540 skb_reserve(skb
, ieee
->tx_headroom
);
3542 disass
= (struct rtllib_disassoc
*) skb_put(skb
,
3543 sizeof(struct rtllib_disassoc
));
3544 disass
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_DISASSOC
);
3545 disass
->header
.duration_id
= 0;
3547 memcpy(disass
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
3548 memcpy(disass
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
3549 memcpy(disass
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
3551 disass
->reason
= cpu_to_le16(asRsn
);
3555 void SendDisassociation(struct rtllib_device
*ieee
, bool deauth
, u16 asRsn
)
3557 struct rtllib_network
*beacon
= &ieee
->current_network
;
3558 struct sk_buff
*skb
;
3561 skb
= rtllib_disauth_skb(beacon
, ieee
, asRsn
);
3563 skb
= rtllib_disassociate_skb(beacon
, ieee
, asRsn
);
3566 softmac_mgmt_xmit(skb
, ieee
);
3569 u8
rtllib_ap_sec_type(struct rtllib_device
*ieee
)
3571 static u8 ccmp_ie
[4] = {0x00, 0x50, 0xf2, 0x04};
3572 static u8 ccmp_rsn_ie
[4] = {0x00, 0x0f, 0xac, 0x04};
3573 int wpa_ie_len
= ieee
->wpa_ie_len
;
3574 struct lib80211_crypt_data
*crypt
;
3577 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
3578 encrypt
= (ieee
->current_network
.capability
& WLAN_CAPABILITY_PRIVACY
)
3579 || (ieee
->host_encrypt
&& crypt
&& crypt
->ops
&&
3580 (0 == strcmp(crypt
->ops
->name
, "R-WEP")));
3583 if (encrypt
&& (wpa_ie_len
== 0)) {
3585 } else if ((wpa_ie_len
!= 0)) {
3586 if (((ieee
->wpa_ie
[0] == 0xdd) &&
3587 (!memcmp(&(ieee
->wpa_ie
[14]), ccmp_ie
, 4))) ||
3588 ((ieee
->wpa_ie
[0] == 0x30) &&
3589 (!memcmp(&ieee
->wpa_ie
[10], ccmp_rsn_ie
, 4))))
3590 return SEC_ALG_CCMP
;
3592 return SEC_ALG_TKIP
;
3594 return SEC_ALG_NONE
;
3598 int rtllib_wpa_supplicant_ioctl(struct rtllib_device
*ieee
, struct iw_point
*p
,
3601 struct ieee_param
*param
;
3604 down(&ieee
->wx_sem
);
3606 if (p
->length
< sizeof(struct ieee_param
) || !p
->pointer
) {
3611 param
= memdup_user(p
->pointer
, p
->length
);
3612 if (IS_ERR(param
)) {
3613 ret
= PTR_ERR(param
);
3617 switch (param
->cmd
) {
3618 case IEEE_CMD_SET_WPA_PARAM
:
3619 ret
= rtllib_wpa_set_param(ieee
, param
->u
.wpa_param
.name
,
3620 param
->u
.wpa_param
.value
);
3623 case IEEE_CMD_SET_WPA_IE
:
3624 ret
= rtllib_wpa_set_wpa_ie(ieee
, param
, p
->length
);
3627 case IEEE_CMD_SET_ENCRYPTION
:
3628 ret
= rtllib_wpa_set_encryption(ieee
, param
, p
->length
, 0);
3632 ret
= rtllib_wpa_mlme(ieee
, param
->u
.mlme
.command
,
3633 param
->u
.mlme
.reason_code
);
3637 printk(KERN_INFO
"Unknown WPA supplicant request: %d\n",
3643 if (ret
== 0 && copy_to_user(p
->pointer
, param
, p
->length
))
3652 EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl
);
3654 static void rtllib_MgntDisconnectIBSS(struct rtllib_device
*rtllib
)
3658 bool bFilterOutNonAssociatedBSSID
= false;
3660 rtllib
->state
= RTLLIB_NOLINK
;
3662 for (i
= 0; i
< 6; i
++)
3663 rtllib
->current_network
.bssid
[i
] = 0x55;
3665 rtllib
->OpMode
= RT_OP_MODE_NO_LINK
;
3666 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_BSSID
,
3667 rtllib
->current_network
.bssid
);
3668 OpMode
= RT_OP_MODE_NO_LINK
;
3669 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_MEDIA_STATUS
, &OpMode
);
3670 rtllib_stop_send_beacons(rtllib
);
3672 bFilterOutNonAssociatedBSSID
= false;
3673 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_CECHK_BSSID
,
3674 (u8
*)(&bFilterOutNonAssociatedBSSID
));
3675 notify_wx_assoc_event(rtllib
);
3679 static void rtllib_MlmeDisassociateRequest(struct rtllib_device
*rtllib
, u8
*asSta
,
3685 RemovePeerTS(rtllib
, asSta
);
3687 if (memcmp(rtllib
->current_network
.bssid
, asSta
, 6) == 0) {
3688 rtllib
->state
= RTLLIB_NOLINK
;
3690 for (i
= 0; i
< 6; i
++)
3691 rtllib
->current_network
.bssid
[i
] = 0x22;
3692 OpMode
= RT_OP_MODE_NO_LINK
;
3693 rtllib
->OpMode
= RT_OP_MODE_NO_LINK
;
3694 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_MEDIA_STATUS
,
3696 rtllib_disassociate(rtllib
);
3698 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_BSSID
,
3699 rtllib
->current_network
.bssid
);
3706 rtllib_MgntDisconnectAP(
3707 struct rtllib_device
*rtllib
,
3711 bool bFilterOutNonAssociatedBSSID
= false;
3713 bFilterOutNonAssociatedBSSID
= false;
3714 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_CECHK_BSSID
,
3715 (u8
*)(&bFilterOutNonAssociatedBSSID
));
3716 rtllib_MlmeDisassociateRequest(rtllib
, rtllib
->current_network
.bssid
,
3719 rtllib
->state
= RTLLIB_NOLINK
;
3722 bool rtllib_MgntDisconnect(struct rtllib_device
*rtllib
, u8 asRsn
)
3724 if (rtllib
->ps
!= RTLLIB_PS_DISABLED
)
3725 rtllib
->sta_wake_up(rtllib
->dev
);
3727 if (rtllib
->state
== RTLLIB_LINKED
) {
3728 if (rtllib
->iw_mode
== IW_MODE_ADHOC
)
3729 rtllib_MgntDisconnectIBSS(rtllib
);
3730 if (rtllib
->iw_mode
== IW_MODE_INFRA
)
3731 rtllib_MgntDisconnectAP(rtllib
, asRsn
);
3737 EXPORT_SYMBOL(rtllib_MgntDisconnect
);
3739 void notify_wx_assoc_event(struct rtllib_device
*ieee
)
3741 union iwreq_data wrqu
;
3743 if (ieee
->cannot_notify
)
3746 wrqu
.ap_addr
.sa_family
= ARPHRD_ETHER
;
3747 if (ieee
->state
== RTLLIB_LINKED
)
3748 memcpy(wrqu
.ap_addr
.sa_data
, ieee
->current_network
.bssid
,
3752 printk(KERN_INFO
"%s(): Tell user space disconnected\n",
3754 eth_zero_addr(wrqu
.ap_addr
.sa_data
);
3756 wireless_send_event(ieee
->dev
, SIOCGIWAP
, &wrqu
, NULL
);
3758 EXPORT_SYMBOL(notify_wx_assoc_event
);