1 /* IEEE 802.11 SoftMAC layer
2 * Copyright (c) 2005 Andrea Merello <andreamrl@tiscali.it>
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>
24 short rtllib_is_54g(struct rtllib_network
*net
)
26 return (net
->rates_ex_len
> 0) || (net
->rates_len
> 4);
29 short rtllib_is_shortslot(const struct rtllib_network
*net
)
31 return net
->capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
;
34 /* returns the total length needed for placing the RATE MFIE
35 * tag and the EXTENDED RATE MFIE tag if needed.
36 * It encludes two bytes per tag for the tag itself and its len
38 static unsigned int rtllib_MFIE_rate_len(struct rtllib_device
*ieee
)
40 unsigned int rate_len
= 0;
42 if (ieee
->modulation
& RTLLIB_CCK_MODULATION
)
43 rate_len
= RTLLIB_CCK_RATE_LEN
+ 2;
45 if (ieee
->modulation
& RTLLIB_OFDM_MODULATION
)
47 rate_len
+= RTLLIB_OFDM_RATE_LEN
+ 2;
52 /* place the MFIE rate, tag to the memory (double) pointed.
53 * Then it updates the pointer so that
54 * it points after the new MFIE tag added.
56 static void rtllib_MFIE_Brate(struct rtllib_device
*ieee
, u8
**tag_p
)
60 if (ieee
->modulation
& RTLLIB_CCK_MODULATION
) {
61 *tag
++ = MFIE_TYPE_RATES
;
63 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_1MB
;
64 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_2MB
;
65 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_5MB
;
66 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_11MB
;
69 /* We may add an option for custom rates that specific HW
74 static void rtllib_MFIE_Grate(struct rtllib_device
*ieee
, u8
**tag_p
)
78 if (ieee
->modulation
& RTLLIB_OFDM_MODULATION
) {
79 *tag
++ = MFIE_TYPE_RATES_EX
;
81 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_6MB
;
82 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_9MB
;
83 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_12MB
;
84 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_18MB
;
85 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_24MB
;
86 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_36MB
;
87 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_48MB
;
88 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_54MB
;
90 /* We may add an option for custom rates that specific HW might
95 static void rtllib_WMM_Info(struct rtllib_device
*ieee
, u8
**tag_p
)
99 *tag
++ = MFIE_TYPE_GENERIC
;
111 void rtllib_TURBO_Info(struct rtllib_device
*ieee
, u8
**tag_p
)
115 *tag
++ = MFIE_TYPE_GENERIC
;
126 printk(KERN_ALERT
"This is enable turbo mode IE process\n");
129 static void enqueue_mgmt(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
132 nh
= (ieee
->mgmt_queue_head
+ 1) % MGMT_QUEUE_NUM
;
135 * if the queue is full but we have newer frames then
136 * just overwrites the oldest.
138 * if (nh == ieee->mgmt_queue_tail)
141 ieee
->mgmt_queue_head
= nh
;
142 ieee
->mgmt_queue_ring
[nh
] = skb
;
146 static struct sk_buff
*dequeue_mgmt(struct rtllib_device
*ieee
)
150 if (ieee
->mgmt_queue_tail
== ieee
->mgmt_queue_head
)
153 ret
= ieee
->mgmt_queue_ring
[ieee
->mgmt_queue_tail
];
155 ieee
->mgmt_queue_tail
=
156 (ieee
->mgmt_queue_tail
+1) % MGMT_QUEUE_NUM
;
161 static void init_mgmt_queue(struct rtllib_device
*ieee
)
163 ieee
->mgmt_queue_tail
= ieee
->mgmt_queue_head
= 0;
168 MgntQuery_TxRateExcludeCCKRates(struct rtllib_device
*ieee
)
175 for (i
= 0; i
< ieee
->current_network
.rates_len
; i
++) {
176 BasicRate
= ieee
->current_network
.rates
[i
]&0x7F;
177 if (!rtllib_is_cck_rate(BasicRate
)) {
178 if (QueryRate
== 0) {
179 QueryRate
= BasicRate
;
181 if (BasicRate
< QueryRate
)
182 QueryRate
= BasicRate
;
187 if (QueryRate
== 0) {
189 printk(KERN_INFO
"No BasicRate found!!\n");
194 u8
MgntQuery_MgntFrameTxRate(struct rtllib_device
*ieee
)
196 struct rt_hi_throughput
*pHTInfo
= ieee
->pHTInfo
;
199 if (pHTInfo
->IOTAction
& HT_IOT_ACT_MGNT_USE_CCK_6M
)
202 rate
= ieee
->basic_rate
& 0x7f;
205 if (ieee
->mode
== IEEE_A
||
206 ieee
->mode
== IEEE_N_5G
||
207 (ieee
->mode
== IEEE_N_24G
&& !pHTInfo
->bCurSuppCCK
))
216 inline void softmac_mgmt_xmit(struct sk_buff
*skb
, struct rtllib_device
*ieee
)
219 short single
= ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
;
220 struct rtllib_hdr_3addr
*header
=
221 (struct rtllib_hdr_3addr
*) skb
->data
;
223 struct cb_desc
*tcb_desc
= (struct cb_desc
*)(skb
->cb
+ 8);
224 spin_lock_irqsave(&ieee
->lock
, flags
);
226 /* called with 2nd param 0, no mgmt lock required */
227 rtllib_sta_wakeup(ieee
, 0);
229 if (header
->frame_ctl
== RTLLIB_STYPE_BEACON
)
230 tcb_desc
->queue_index
= BEACON_QUEUE
;
232 tcb_desc
->queue_index
= MGNT_QUEUE
;
234 if (ieee
->disable_mgnt_queue
)
235 tcb_desc
->queue_index
= HIGH_QUEUE
;
237 tcb_desc
->data_rate
= MgntQuery_MgntFrameTxRate(ieee
);
238 tcb_desc
->RATRIndex
= 7;
239 tcb_desc
->bTxDisableRateFallBack
= 1;
240 tcb_desc
->bTxUseDriverAssingedRate
= 1;
242 if (ieee
->queue_stop
) {
243 enqueue_mgmt(ieee
, skb
);
245 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0]<<4);
247 if (ieee
->seq_ctrl
[0] == 0xFFF)
248 ieee
->seq_ctrl
[0] = 0;
252 /* avoid watchdog triggers */
253 ieee
->softmac_data_hard_start_xmit(skb
, ieee
->dev
,
257 spin_unlock_irqrestore(&ieee
->lock
, flags
);
259 spin_unlock_irqrestore(&ieee
->lock
, flags
);
260 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags
);
262 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
264 if (ieee
->seq_ctrl
[0] == 0xFFF)
265 ieee
->seq_ctrl
[0] = 0;
269 /* check wether the managed packet queued greater than 5 */
270 if (!ieee
->check_nic_enough_desc(ieee
->dev
, tcb_desc
->queue_index
) ||
271 (skb_queue_len(&ieee
->skb_waitQ
[tcb_desc
->queue_index
]) != 0) ||
272 (ieee
->queue_stop
)) {
273 /* insert the skb packet to the management queue */
274 /* as for the completion function, it does not need
275 * to check it any more.
277 printk(KERN_INFO
"%s():insert to waitqueue, queue_index"
278 ":%d!\n", __func__
, tcb_desc
->queue_index
);
279 skb_queue_tail(&ieee
->skb_waitQ
[tcb_desc
->queue_index
],
282 ieee
->softmac_hard_start_xmit(skb
, ieee
->dev
);
284 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags
);
288 inline void softmac_ps_mgmt_xmit(struct sk_buff
*skb
,
289 struct rtllib_device
*ieee
)
291 short single
= ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
;
292 struct rtllib_hdr_3addr
*header
=
293 (struct rtllib_hdr_3addr
*) skb
->data
;
295 struct cb_desc
*tcb_desc
= (struct cb_desc
*)(skb
->cb
+ 8);
297 fc
= header
->frame_ctl
;
298 type
= WLAN_FC_GET_TYPE(fc
);
299 stype
= WLAN_FC_GET_STYPE(fc
);
302 if (stype
!= RTLLIB_STYPE_PSPOLL
)
303 tcb_desc
->queue_index
= MGNT_QUEUE
;
305 tcb_desc
->queue_index
= HIGH_QUEUE
;
307 if (ieee
->disable_mgnt_queue
)
308 tcb_desc
->queue_index
= HIGH_QUEUE
;
311 tcb_desc
->data_rate
= MgntQuery_MgntFrameTxRate(ieee
);
312 tcb_desc
->RATRIndex
= 7;
313 tcb_desc
->bTxDisableRateFallBack
= 1;
314 tcb_desc
->bTxUseDriverAssingedRate
= 1;
316 if (type
!= RTLLIB_FTYPE_CTL
) {
317 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
319 if (ieee
->seq_ctrl
[0] == 0xFFF)
320 ieee
->seq_ctrl
[0] = 0;
325 /* avoid watchdog triggers */
326 ieee
->softmac_data_hard_start_xmit(skb
, ieee
->dev
,
330 if (type
!= RTLLIB_FTYPE_CTL
) {
331 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
333 if (ieee
->seq_ctrl
[0] == 0xFFF)
334 ieee
->seq_ctrl
[0] = 0;
338 ieee
->softmac_hard_start_xmit(skb
, ieee
->dev
);
343 inline struct sk_buff
*rtllib_probe_req(struct rtllib_device
*ieee
)
345 unsigned int len
, rate_len
;
348 struct rtllib_probe_request
*req
;
350 len
= ieee
->current_network
.ssid_len
;
352 rate_len
= rtllib_MFIE_rate_len(ieee
);
354 skb
= dev_alloc_skb(sizeof(struct rtllib_probe_request
) +
355 2 + len
+ rate_len
+ ieee
->tx_headroom
);
360 skb_reserve(skb
, ieee
->tx_headroom
);
362 req
= (struct rtllib_probe_request
*) skb_put(skb
,
363 sizeof(struct rtllib_probe_request
));
364 req
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_PROBE_REQ
);
365 req
->header
.duration_id
= 0;
367 memset(req
->header
.addr1
, 0xff, ETH_ALEN
);
368 memcpy(req
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
369 memset(req
->header
.addr3
, 0xff, ETH_ALEN
);
371 tag
= (u8
*) skb_put(skb
, len
+ 2 + rate_len
);
373 *tag
++ = MFIE_TYPE_SSID
;
375 memcpy(tag
, ieee
->current_network
.ssid
, len
);
378 rtllib_MFIE_Brate(ieee
, &tag
);
379 rtllib_MFIE_Grate(ieee
, &tag
);
384 struct sk_buff
*rtllib_get_beacon_(struct rtllib_device
*ieee
);
386 static void rtllib_send_beacon(struct rtllib_device
*ieee
)
391 skb
= rtllib_get_beacon_(ieee
);
394 softmac_mgmt_xmit(skb
, ieee
);
395 ieee
->softmac_stats
.tx_beacons
++;
398 if (ieee
->beacon_txing
&& ieee
->ieee_up
)
399 mod_timer(&ieee
->beacon_timer
, jiffies
+
400 (MSECS(ieee
->current_network
.beacon_interval
- 5)));
404 static void rtllib_send_beacon_cb(unsigned long _ieee
)
406 struct rtllib_device
*ieee
=
407 (struct rtllib_device
*) _ieee
;
410 spin_lock_irqsave(&ieee
->beacon_lock
, flags
);
411 rtllib_send_beacon(ieee
);
412 spin_unlock_irqrestore(&ieee
->beacon_lock
, flags
);
417 * Enable network monitor mode, all rx packets will be received.
419 void rtllib_EnableNetMonitorMode(struct net_device
*dev
,
422 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
424 printk(KERN_INFO
"========>Enter Monitor Mode\n");
426 ieee
->AllowAllDestAddrHandler(dev
, true, !bInitState
);
432 * Disable network network monitor mode, only packets destinated to
433 * us will be received.
435 void rtllib_DisableNetMonitorMode(struct net_device
*dev
,
438 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
440 printk(KERN_INFO
"========>Exit Monitor Mode\n");
442 ieee
->AllowAllDestAddrHandler(dev
, false, !bInitState
);
448 * This enables the specialized promiscuous mode required by Intel.
449 * In this mode, Intel intends to hear traffics from/to other STAs in the
450 * same BSS. Therefore we don't have to disable checking BSSID and we only need
451 * to allow all dest. BUT: if we enable checking BSSID then we can't recv
452 * packets from other STA.
454 void rtllib_EnableIntelPromiscuousMode(struct net_device
*dev
,
457 bool bFilterOutNonAssociatedBSSID
= false;
459 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
461 printk(KERN_INFO
"========>Enter Intel Promiscuous Mode\n");
463 ieee
->AllowAllDestAddrHandler(dev
, true, !bInitState
);
464 ieee
->SetHwRegHandler(dev
, HW_VAR_CECHK_BSSID
,
465 (u8
*)&bFilterOutNonAssociatedBSSID
);
467 ieee
->bNetPromiscuousMode
= true;
469 EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode
);
474 * This disables the specialized promiscuous mode required by Intel.
475 * See MgntEnableIntelPromiscuousMode for detail.
477 void rtllib_DisableIntelPromiscuousMode(struct net_device
*dev
,
480 bool bFilterOutNonAssociatedBSSID
= true;
482 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
484 printk(KERN_INFO
"========>Exit Intel Promiscuous Mode\n");
486 ieee
->AllowAllDestAddrHandler(dev
, false, !bInitState
);
487 ieee
->SetHwRegHandler(dev
, HW_VAR_CECHK_BSSID
,
488 (u8
*)&bFilterOutNonAssociatedBSSID
);
490 ieee
->bNetPromiscuousMode
= false;
492 EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode
);
494 static void rtllib_send_probe(struct rtllib_device
*ieee
, u8 is_mesh
)
497 skb
= rtllib_probe_req(ieee
);
499 softmac_mgmt_xmit(skb
, ieee
);
500 ieee
->softmac_stats
.tx_probe_rq
++;
505 void rtllib_send_probe_requests(struct rtllib_device
*ieee
, u8 is_mesh
)
507 if (ieee
->active_scan
&& (ieee
->softmac_features
&
508 IEEE_SOFTMAC_PROBERQ
)) {
509 rtllib_send_probe(ieee
, 0);
510 rtllib_send_probe(ieee
, 0);
514 static void rtllib_softmac_hint11d_wq(void *data
)
518 void rtllib_update_active_chan_map(struct rtllib_device
*ieee
)
520 memcpy(ieee
->active_channel_map
, GET_DOT11D_INFO(ieee
)->channel_map
,
521 MAX_CHANNEL_NUMBER
+1);
524 /* this performs syncro scan blocking the caller until all channels
525 * in the allowed channel map has been checked.
527 void rtllib_softmac_scan_syncro(struct rtllib_device
*ieee
, u8 is_mesh
)
529 union iwreq_data wrqu
;
532 rtllib_update_active_chan_map(ieee
);
534 ieee
->be_scan_inprogress
= true;
536 down(&ieee
->scan_sem
);
541 if (ch
> MAX_CHANNEL_NUMBER
)
542 goto out
; /* scan completed */
543 } while (!ieee
->active_channel_map
[ch
]);
545 /* this fuction can be called in two situations
546 * 1- We have switched to ad-hoc mode and we are
547 * performing a complete syncro scan before conclude
548 * there are no interesting cell and to create a
549 * new one. In this case the link state is
550 * RTLLIB_NOLINK until we found an interesting cell.
551 * If so the ieee8021_new_net, called by the RX path
552 * will set the state to RTLLIB_LINKED, so we stop
554 * 2- We are linked and the root uses run iwlist scan.
555 * So we switch to RTLLIB_LINKED_SCANNING to remember
556 * that we are still logically linked (not interested in
557 * new network events, despite for updating the net list,
558 * but we are temporarly 'unlinked' as the driver shall
559 * not filter RX frames and the channel is changing.
560 * So the only situation in which are interested is to check
561 * if the state become LINKED because of the #1 situation
564 if (ieee
->state
== RTLLIB_LINKED
)
566 if (ieee
->sync_scan_hurryup
) {
567 printk(KERN_INFO
"============>sync_scan_hurryup out\n");
571 ieee
->set_chan(ieee
->dev
, ch
);
572 if (ieee
->active_channel_map
[ch
] == 1)
573 rtllib_send_probe_requests(ieee
, 0);
575 /* this prevent excessive time wait when we
576 * need to wait for a syncro scan to end..
578 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME
);
581 ieee
->actscanning
= false;
582 ieee
->sync_scan_hurryup
= 0;
584 if (ieee
->state
>= RTLLIB_LINKED
) {
585 if (IS_DOT11D_ENABLE(ieee
))
586 DOT11D_ScanComplete(ieee
);
590 ieee
->be_scan_inprogress
= false;
592 memset(&wrqu
, 0, sizeof(wrqu
));
593 wireless_send_event(ieee
->dev
, SIOCGIWSCAN
, &wrqu
, NULL
);
596 static void rtllib_softmac_scan_wq(void *data
)
598 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
599 struct rtllib_device
, softmac_scan_wq
);
600 u8 last_channel
= ieee
->current_network
.channel
;
602 rtllib_update_active_chan_map(ieee
);
606 if (rtllib_act_scanning(ieee
, true) == true)
609 down(&ieee
->scan_sem
);
611 if (ieee
->eRFPowerState
== eRfOff
) {
612 printk(KERN_INFO
"======>%s():rf state is eRfOff, return\n",
618 ieee
->current_network
.channel
=
619 (ieee
->current_network
.channel
+ 1) %
621 if (ieee
->scan_watch_dog
++ > MAX_CHANNEL_NUMBER
) {
622 if (!ieee
->active_channel_map
[ieee
->current_network
.channel
])
623 ieee
->current_network
.channel
= 6;
624 goto out
; /* no good chans */
626 } while (!ieee
->active_channel_map
[ieee
->current_network
.channel
]);
628 if (ieee
->scanning_continue
== 0)
631 ieee
->set_chan(ieee
->dev
, ieee
->current_network
.channel
);
633 if (ieee
->active_channel_map
[ieee
->current_network
.channel
] == 1)
634 rtllib_send_probe_requests(ieee
, 0);
636 queue_delayed_work_rsl(ieee
->wq
, &ieee
->softmac_scan_wq
,
637 MSECS(RTLLIB_SOFTMAC_SCAN_TIME
));
643 if (IS_DOT11D_ENABLE(ieee
))
644 DOT11D_ScanComplete(ieee
);
645 ieee
->current_network
.channel
= last_channel
;
648 ieee
->actscanning
= false;
649 ieee
->scan_watch_dog
= 0;
650 ieee
->scanning_continue
= 0;
656 static void rtllib_beacons_start(struct rtllib_device
*ieee
)
659 spin_lock_irqsave(&ieee
->beacon_lock
, flags
);
661 ieee
->beacon_txing
= 1;
662 rtllib_send_beacon(ieee
);
664 spin_unlock_irqrestore(&ieee
->beacon_lock
, flags
);
667 static void rtllib_beacons_stop(struct rtllib_device
*ieee
)
671 spin_lock_irqsave(&ieee
->beacon_lock
, flags
);
673 ieee
->beacon_txing
= 0;
674 del_timer_sync(&ieee
->beacon_timer
);
676 spin_unlock_irqrestore(&ieee
->beacon_lock
, flags
);
681 void rtllib_stop_send_beacons(struct rtllib_device
*ieee
)
683 if (ieee
->stop_send_beacons
)
684 ieee
->stop_send_beacons(ieee
->dev
);
685 if (ieee
->softmac_features
& IEEE_SOFTMAC_BEACONS
)
686 rtllib_beacons_stop(ieee
);
688 EXPORT_SYMBOL(rtllib_stop_send_beacons
);
691 void rtllib_start_send_beacons(struct rtllib_device
*ieee
)
693 if (ieee
->start_send_beacons
)
694 ieee
->start_send_beacons(ieee
->dev
);
695 if (ieee
->softmac_features
& IEEE_SOFTMAC_BEACONS
)
696 rtllib_beacons_start(ieee
);
698 EXPORT_SYMBOL(rtllib_start_send_beacons
);
701 static void rtllib_softmac_stop_scan(struct rtllib_device
*ieee
)
703 down(&ieee
->scan_sem
);
704 ieee
->scan_watch_dog
= 0;
705 if (ieee
->scanning_continue
== 1) {
706 ieee
->scanning_continue
= 0;
707 ieee
->actscanning
= 0;
709 cancel_delayed_work(&ieee
->softmac_scan_wq
);
715 void rtllib_stop_scan(struct rtllib_device
*ieee
)
717 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
718 rtllib_softmac_stop_scan(ieee
);
720 if (ieee
->rtllib_stop_hw_scan
)
721 ieee
->rtllib_stop_hw_scan(ieee
->dev
);
724 EXPORT_SYMBOL(rtllib_stop_scan
);
726 void rtllib_stop_scan_syncro(struct rtllib_device
*ieee
)
728 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
729 ieee
->sync_scan_hurryup
= 1;
731 if (ieee
->rtllib_stop_hw_scan
)
732 ieee
->rtllib_stop_hw_scan(ieee
->dev
);
735 EXPORT_SYMBOL(rtllib_stop_scan_syncro
);
737 bool rtllib_act_scanning(struct rtllib_device
*ieee
, bool sync_scan
)
739 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
741 return ieee
->be_scan_inprogress
;
743 return ieee
->actscanning
|| ieee
->be_scan_inprogress
;
745 return test_bit(STATUS_SCANNING
, &ieee
->status
);
748 EXPORT_SYMBOL(rtllib_act_scanning
);
750 /* called with ieee->lock held */
751 static void rtllib_start_scan(struct rtllib_device
*ieee
)
753 RT_TRACE(COMP_DBG
, "===>%s()\n", __func__
);
754 if (ieee
->rtllib_ips_leave_wq
!= NULL
)
755 ieee
->rtllib_ips_leave_wq(ieee
->dev
);
757 if (IS_DOT11D_ENABLE(ieee
)) {
758 if (IS_COUNTRY_IE_VALID(ieee
))
759 RESET_CIE_WATCHDOG(ieee
);
761 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
762 if (ieee
->scanning_continue
== 0) {
763 ieee
->actscanning
= true;
764 ieee
->scanning_continue
= 1;
765 queue_delayed_work_rsl(ieee
->wq
,
766 &ieee
->softmac_scan_wq
, 0);
769 if (ieee
->rtllib_start_hw_scan
)
770 ieee
->rtllib_start_hw_scan(ieee
->dev
);
774 /* called with wx_sem held */
775 void rtllib_start_scan_syncro(struct rtllib_device
*ieee
, u8 is_mesh
)
777 if (IS_DOT11D_ENABLE(ieee
)) {
778 if (IS_COUNTRY_IE_VALID(ieee
))
779 RESET_CIE_WATCHDOG(ieee
);
781 ieee
->sync_scan_hurryup
= 0;
782 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
783 rtllib_softmac_scan_syncro(ieee
, is_mesh
);
785 if (ieee
->rtllib_start_hw_scan
)
786 ieee
->rtllib_start_hw_scan(ieee
->dev
);
789 EXPORT_SYMBOL(rtllib_start_scan_syncro
);
791 inline struct sk_buff
*rtllib_authentication_req(struct rtllib_network
*beacon
,
792 struct rtllib_device
*ieee
, int challengelen
, u8
*daddr
)
795 struct rtllib_authentication
*auth
;
797 len
= sizeof(struct rtllib_authentication
) + challengelen
+
798 ieee
->tx_headroom
+ 4;
799 skb
= dev_alloc_skb(len
);
804 skb_reserve(skb
, ieee
->tx_headroom
);
806 auth
= (struct rtllib_authentication
*)
807 skb_put(skb
, sizeof(struct rtllib_authentication
));
809 auth
->header
.frame_ctl
= RTLLIB_STYPE_AUTH
;
811 auth
->header
.frame_ctl
|= RTLLIB_FCTL_WEP
;
813 auth
->header
.duration_id
= 0x013a;
814 memcpy(auth
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
815 memcpy(auth
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
816 memcpy(auth
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
817 if (ieee
->auth_mode
== 0)
818 auth
->algorithm
= WLAN_AUTH_OPEN
;
819 else if (ieee
->auth_mode
== 1)
820 auth
->algorithm
= WLAN_AUTH_SHARED_KEY
;
821 else if (ieee
->auth_mode
== 2)
822 auth
->algorithm
= WLAN_AUTH_OPEN
;
823 auth
->transaction
= cpu_to_le16(ieee
->associate_seq
);
824 ieee
->associate_seq
++;
826 auth
->status
= cpu_to_le16(WLAN_STATUS_SUCCESS
);
831 static struct sk_buff
*rtllib_probe_resp(struct rtllib_device
*ieee
, u8
*dest
)
835 struct rtllib_probe_response
*beacon_buf
;
836 struct sk_buff
*skb
= NULL
;
838 int atim_len
, erp_len
;
839 struct lib80211_crypt_data
*crypt
;
841 char *ssid
= ieee
->current_network
.ssid
;
842 int ssid_len
= ieee
->current_network
.ssid_len
;
843 int rate_len
= ieee
->current_network
.rates_len
+2;
844 int rate_ex_len
= ieee
->current_network
.rates_ex_len
;
845 int wpa_ie_len
= ieee
->wpa_ie_len
;
846 u8 erpinfo_content
= 0;
848 u8
*tmp_ht_cap_buf
= NULL
;
849 u8 tmp_ht_cap_len
= 0;
850 u8
*tmp_ht_info_buf
= NULL
;
851 u8 tmp_ht_info_len
= 0;
852 struct rt_hi_throughput
*pHTInfo
= ieee
->pHTInfo
;
853 u8
*tmp_generic_ie_buf
= NULL
;
854 u8 tmp_generic_ie_len
= 0;
859 if (ieee
->current_network
.capability
& WLAN_CAPABILITY_IBSS
)
864 if ((ieee
->current_network
.mode
== IEEE_G
) ||
865 (ieee
->current_network
.mode
== IEEE_N_24G
&&
866 ieee
->pHTInfo
->bCurSuppCCK
)) {
869 if (ieee
->current_network
.buseprotection
)
870 erpinfo_content
|= ERP_UseProtection
;
874 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
875 encrypt
= ieee
->host_encrypt
&& crypt
&& crypt
->ops
&&
876 ((0 == strcmp(crypt
->ops
->name
, "R-WEP") || wpa_ie_len
));
877 if (ieee
->pHTInfo
->bCurrentHTSupport
) {
878 tmp_ht_cap_buf
= (u8
*) &(ieee
->pHTInfo
->SelfHTCap
);
879 tmp_ht_cap_len
= sizeof(ieee
->pHTInfo
->SelfHTCap
);
880 tmp_ht_info_buf
= (u8
*) &(ieee
->pHTInfo
->SelfHTInfo
);
881 tmp_ht_info_len
= sizeof(ieee
->pHTInfo
->SelfHTInfo
);
882 HTConstructCapabilityElement(ieee
, tmp_ht_cap_buf
,
883 &tmp_ht_cap_len
, encrypt
, false);
884 HTConstructInfoElement(ieee
, tmp_ht_info_buf
, &tmp_ht_info_len
,
887 if (pHTInfo
->bRegRT2RTAggregation
) {
888 tmp_generic_ie_buf
= ieee
->pHTInfo
->szRT2RTAggBuffer
;
890 sizeof(ieee
->pHTInfo
->szRT2RTAggBuffer
);
891 HTConstructRT2RTAggElement(ieee
, tmp_generic_ie_buf
,
892 &tmp_generic_ie_len
);
896 beacon_size
= sizeof(struct rtllib_probe_response
)+2+
897 ssid_len
+ 3 + rate_len
+ rate_ex_len
+ atim_len
+ erp_len
898 + wpa_ie_len
+ ieee
->tx_headroom
;
899 skb
= dev_alloc_skb(beacon_size
);
903 skb_reserve(skb
, ieee
->tx_headroom
);
905 beacon_buf
= (struct rtllib_probe_response
*) skb_put(skb
,
906 (beacon_size
- ieee
->tx_headroom
));
907 memcpy(beacon_buf
->header
.addr1
, dest
, ETH_ALEN
);
908 memcpy(beacon_buf
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
909 memcpy(beacon_buf
->header
.addr3
, ieee
->current_network
.bssid
, ETH_ALEN
);
911 beacon_buf
->header
.duration_id
= 0;
912 beacon_buf
->beacon_interval
=
913 cpu_to_le16(ieee
->current_network
.beacon_interval
);
914 beacon_buf
->capability
=
915 cpu_to_le16(ieee
->current_network
.capability
&
916 WLAN_CAPABILITY_IBSS
);
917 beacon_buf
->capability
|=
918 cpu_to_le16(ieee
->current_network
.capability
&
919 WLAN_CAPABILITY_SHORT_PREAMBLE
);
921 if (ieee
->short_slot
&& (ieee
->current_network
.capability
&
922 WLAN_CAPABILITY_SHORT_SLOT_TIME
))
923 cpu_to_le16((beacon_buf
->capability
|=
924 WLAN_CAPABILITY_SHORT_SLOT_TIME
));
926 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
928 beacon_buf
->capability
|= cpu_to_le16(WLAN_CAPABILITY_PRIVACY
);
931 beacon_buf
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_PROBE_RESP
);
932 beacon_buf
->info_element
[0].id
= MFIE_TYPE_SSID
;
933 beacon_buf
->info_element
[0].len
= ssid_len
;
935 tag
= (u8
*) beacon_buf
->info_element
[0].data
;
937 memcpy(tag
, ssid
, ssid_len
);
941 *(tag
++) = MFIE_TYPE_RATES
;
942 *(tag
++) = rate_len
-2;
943 memcpy(tag
, ieee
->current_network
.rates
, rate_len
-2);
946 *(tag
++) = MFIE_TYPE_DS_SET
;
948 *(tag
++) = ieee
->current_network
.channel
;
952 *(tag
++) = MFIE_TYPE_IBSS_SET
;
954 val16
= cpu_to_le16(ieee
->current_network
.atim_window
);
955 memcpy((u8
*)tag
, (u8
*)&val16
, 2);
960 *(tag
++) = MFIE_TYPE_ERP
;
962 *(tag
++) = erpinfo_content
;
965 *(tag
++) = MFIE_TYPE_RATES_EX
;
966 *(tag
++) = rate_ex_len
-2;
967 memcpy(tag
, ieee
->current_network
.rates_ex
, rate_ex_len
-2);
968 tag
+= rate_ex_len
-2;
972 if (ieee
->iw_mode
== IW_MODE_ADHOC
)
973 memcpy(&ieee
->wpa_ie
[14], &ieee
->wpa_ie
[8], 4);
974 memcpy(tag
, ieee
->wpa_ie
, ieee
->wpa_ie_len
);
975 tag
+= ieee
->wpa_ie_len
;
980 static struct sk_buff
*rtllib_assoc_resp(struct rtllib_device
*ieee
, u8
*dest
)
985 struct lib80211_crypt_data
*crypt
;
986 struct rtllib_assoc_response_frame
*assoc
;
989 unsigned int rate_len
= rtllib_MFIE_rate_len(ieee
);
990 int len
= sizeof(struct rtllib_assoc_response_frame
) + rate_len
+
993 skb
= dev_alloc_skb(len
);
998 skb_reserve(skb
, ieee
->tx_headroom
);
1000 assoc
= (struct rtllib_assoc_response_frame
*)
1001 skb_put(skb
, sizeof(struct rtllib_assoc_response_frame
));
1003 assoc
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP
);
1004 memcpy(assoc
->header
.addr1
, dest
, ETH_ALEN
);
1005 memcpy(assoc
->header
.addr3
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1006 memcpy(assoc
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1007 assoc
->capability
= cpu_to_le16(ieee
->iw_mode
== IW_MODE_MASTER
?
1008 WLAN_CAPABILITY_ESS
: WLAN_CAPABILITY_IBSS
);
1011 if (ieee
->short_slot
)
1012 assoc
->capability
|=
1013 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME
);
1015 if (ieee
->host_encrypt
)
1016 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
1020 encrypt
= (crypt
&& crypt
->ops
);
1023 assoc
->capability
|= cpu_to_le16(WLAN_CAPABILITY_PRIVACY
);
1026 assoc
->aid
= cpu_to_le16(ieee
->assoc_id
);
1027 if (ieee
->assoc_id
== 0x2007)
1032 tag
= (u8
*) skb_put(skb
, rate_len
);
1033 rtllib_MFIE_Brate(ieee
, &tag
);
1034 rtllib_MFIE_Grate(ieee
, &tag
);
1039 static struct sk_buff
*rtllib_auth_resp(struct rtllib_device
*ieee
, int status
,
1042 struct sk_buff
*skb
= NULL
;
1043 struct rtllib_authentication
*auth
;
1044 int len
= ieee
->tx_headroom
+ sizeof(struct rtllib_authentication
) + 1;
1045 skb
= dev_alloc_skb(len
);
1049 skb
->len
= sizeof(struct rtllib_authentication
);
1051 skb_reserve(skb
, ieee
->tx_headroom
);
1053 auth
= (struct rtllib_authentication
*)
1054 skb_put(skb
, sizeof(struct rtllib_authentication
));
1056 auth
->status
= cpu_to_le16(status
);
1057 auth
->transaction
= cpu_to_le16(2);
1058 auth
->algorithm
= cpu_to_le16(WLAN_AUTH_OPEN
);
1060 memcpy(auth
->header
.addr3
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1061 memcpy(auth
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1062 memcpy(auth
->header
.addr1
, dest
, ETH_ALEN
);
1063 auth
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_AUTH
);
1069 static struct sk_buff
*rtllib_null_func(struct rtllib_device
*ieee
, short pwr
)
1071 struct sk_buff
*skb
;
1072 struct rtllib_hdr_3addr
*hdr
;
1074 skb
= dev_alloc_skb(sizeof(struct rtllib_hdr_3addr
)+ieee
->tx_headroom
);
1078 skb_reserve(skb
, ieee
->tx_headroom
);
1080 hdr
= (struct rtllib_hdr_3addr
*)skb_put(skb
,
1081 sizeof(struct rtllib_hdr_3addr
));
1083 memcpy(hdr
->addr1
, ieee
->current_network
.bssid
, ETH_ALEN
);
1084 memcpy(hdr
->addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1085 memcpy(hdr
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
);
1087 hdr
->frame_ctl
= cpu_to_le16(RTLLIB_FTYPE_DATA
|
1088 RTLLIB_STYPE_NULLFUNC
| RTLLIB_FCTL_TODS
|
1089 (pwr
? RTLLIB_FCTL_PM
: 0));
1096 static struct sk_buff
*rtllib_pspoll_func(struct rtllib_device
*ieee
)
1098 struct sk_buff
*skb
;
1099 struct rtllib_pspoll_hdr
*hdr
;
1101 skb
= dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr
)+ieee
->tx_headroom
);
1105 skb_reserve(skb
, ieee
->tx_headroom
);
1107 hdr
= (struct rtllib_pspoll_hdr
*)skb_put(skb
,
1108 sizeof(struct rtllib_pspoll_hdr
));
1110 memcpy(hdr
->bssid
, ieee
->current_network
.bssid
, ETH_ALEN
);
1111 memcpy(hdr
->ta
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1113 hdr
->aid
= cpu_to_le16(ieee
->assoc_id
| 0xc000);
1114 hdr
->frame_ctl
= cpu_to_le16(RTLLIB_FTYPE_CTL
| RTLLIB_STYPE_PSPOLL
|
1121 static void rtllib_resp_to_assoc_rq(struct rtllib_device
*ieee
, u8
*dest
)
1123 struct sk_buff
*buf
= rtllib_assoc_resp(ieee
, dest
);
1126 softmac_mgmt_xmit(buf
, ieee
);
1130 static void rtllib_resp_to_auth(struct rtllib_device
*ieee
, int s
, u8
*dest
)
1132 struct sk_buff
*buf
= rtllib_auth_resp(ieee
, s
, dest
);
1135 softmac_mgmt_xmit(buf
, ieee
);
1139 static void rtllib_resp_to_probe(struct rtllib_device
*ieee
, u8
*dest
)
1142 struct sk_buff
*buf
= rtllib_probe_resp(ieee
, dest
);
1144 softmac_mgmt_xmit(buf
, ieee
);
1148 inline int SecIsInPMKIDList(struct rtllib_device
*ieee
, u8
*bssid
)
1153 if ((ieee
->PMKIDList
[i
].bUsed
) &&
1154 (memcmp(ieee
->PMKIDList
[i
].Bssid
, bssid
, ETH_ALEN
) == 0))
1158 } while (i
< NUM_PMKID_CACHE
);
1160 if (i
== NUM_PMKID_CACHE
)
1165 inline struct sk_buff
*rtllib_association_req(struct rtllib_network
*beacon
,
1166 struct rtllib_device
*ieee
)
1168 struct sk_buff
*skb
;
1169 struct rtllib_assoc_request_frame
*hdr
;
1172 u8
*ht_cap_buf
= NULL
;
1174 u8
*realtek_ie_buf
= NULL
;
1175 u8 realtek_ie_len
= 0;
1176 int wpa_ie_len
= ieee
->wpa_ie_len
;
1177 int wps_ie_len
= ieee
->wps_ie_len
;
1178 unsigned int ckip_ie_len
= 0;
1179 unsigned int ccxrm_ie_len
= 0;
1180 unsigned int cxvernum_ie_len
= 0;
1181 struct lib80211_crypt_data
*crypt
;
1185 unsigned int rate_len
= (beacon
->rates_len
?
1186 (beacon
->rates_len
+ 2) : 0) +
1187 (beacon
->rates_ex_len
? (beacon
->rates_ex_len
) +
1190 unsigned int wmm_info_len
= beacon
->qos_data
.supported
? 9 : 0;
1191 unsigned int turbo_info_len
= beacon
->Turbo_Enable
? 9 : 0;
1194 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
1196 encrypt
= ieee
->host_encrypt
&& crypt
&& crypt
->ops
&&
1197 ((0 == strcmp(crypt
->ops
->name
, "R-WEP") ||
1202 if ((ieee
->rtllib_ap_sec_type
&&
1203 (ieee
->rtllib_ap_sec_type(ieee
) & SEC_ALG_TKIP
)) ||
1204 (ieee
->bForcedBgMode
== true)) {
1205 ieee
->pHTInfo
->bEnableHT
= 0;
1206 ieee
->mode
= WIRELESS_MODE_G
;
1209 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1210 ht_cap_buf
= (u8
*)&(ieee
->pHTInfo
->SelfHTCap
);
1211 ht_cap_len
= sizeof(ieee
->pHTInfo
->SelfHTCap
);
1212 HTConstructCapabilityElement(ieee
, ht_cap_buf
, &ht_cap_len
,
1214 if (ieee
->pHTInfo
->bCurrentRT2RTAggregation
) {
1215 realtek_ie_buf
= ieee
->pHTInfo
->szRT2RTAggBuffer
;
1217 sizeof(ieee
->pHTInfo
->szRT2RTAggBuffer
);
1218 HTConstructRT2RTAggElement(ieee
, realtek_ie_buf
,
1223 if (beacon
->bCkipSupported
)
1225 if (beacon
->bCcxRmEnable
)
1227 if (beacon
->BssCcxVerNumber
>= 2)
1228 cxvernum_ie_len
= 5+2;
1230 PMKCacheIdx
= SecIsInPMKIDList(ieee
, ieee
->current_network
.bssid
);
1231 if (PMKCacheIdx
>= 0) {
1233 printk(KERN_INFO
"[PMK cache]: WPA2 IE length: %x\n",
1236 len
= sizeof(struct rtllib_assoc_request_frame
) + 2
1248 + ieee
->tx_headroom
;
1250 skb
= dev_alloc_skb(len
);
1255 skb_reserve(skb
, ieee
->tx_headroom
);
1257 hdr
= (struct rtllib_assoc_request_frame
*)
1258 skb_put(skb
, sizeof(struct rtllib_assoc_request_frame
) + 2);
1261 hdr
->header
.frame_ctl
= RTLLIB_STYPE_ASSOC_REQ
;
1262 hdr
->header
.duration_id
= 37;
1263 memcpy(hdr
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
1264 memcpy(hdr
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1265 memcpy(hdr
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
1267 memcpy(ieee
->ap_mac_addr
, beacon
->bssid
, ETH_ALEN
);
1269 hdr
->capability
= cpu_to_le16(WLAN_CAPABILITY_ESS
);
1270 if (beacon
->capability
& WLAN_CAPABILITY_PRIVACY
)
1271 hdr
->capability
|= cpu_to_le16(WLAN_CAPABILITY_PRIVACY
);
1273 if (beacon
->capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
1274 hdr
->capability
|= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE
);
1276 if (ieee
->short_slot
&&
1277 (beacon
->capability
&WLAN_CAPABILITY_SHORT_SLOT_TIME
))
1278 hdr
->capability
|= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME
);
1281 hdr
->listen_interval
= beacon
->listen_interval
;
1283 hdr
->info_element
[0].id
= MFIE_TYPE_SSID
;
1285 hdr
->info_element
[0].len
= beacon
->ssid_len
;
1286 tag
= skb_put(skb
, beacon
->ssid_len
);
1287 memcpy(tag
, beacon
->ssid
, beacon
->ssid_len
);
1289 tag
= skb_put(skb
, rate_len
);
1291 if (beacon
->rates_len
) {
1292 *tag
++ = MFIE_TYPE_RATES
;
1293 *tag
++ = beacon
->rates_len
;
1294 for (i
= 0; i
< beacon
->rates_len
; i
++)
1295 *tag
++ = beacon
->rates
[i
];
1298 if (beacon
->rates_ex_len
) {
1299 *tag
++ = MFIE_TYPE_RATES_EX
;
1300 *tag
++ = beacon
->rates_ex_len
;
1301 for (i
= 0; i
< beacon
->rates_ex_len
; i
++)
1302 *tag
++ = beacon
->rates_ex
[i
];
1305 if (beacon
->bCkipSupported
) {
1306 static u8 AironetIeOui
[] = {0x00, 0x01, 0x66};
1307 u8 CcxAironetBuf
[30];
1308 struct octet_string osCcxAironetIE
;
1310 memset(CcxAironetBuf
, 0, 30);
1311 osCcxAironetIE
.Octet
= CcxAironetBuf
;
1312 osCcxAironetIE
.Length
= sizeof(CcxAironetBuf
);
1313 memcpy(osCcxAironetIE
.Octet
, AironetIeOui
,
1314 sizeof(AironetIeOui
));
1316 osCcxAironetIE
.Octet
[IE_CISCO_FLAG_POSITION
] |=
1317 (SUPPORT_CKIP_PK
|SUPPORT_CKIP_MIC
);
1318 tag
= skb_put(skb
, ckip_ie_len
);
1319 *tag
++ = MFIE_TYPE_AIRONET
;
1320 *tag
++ = osCcxAironetIE
.Length
;
1321 memcpy(tag
, osCcxAironetIE
.Octet
, osCcxAironetIE
.Length
);
1322 tag
+= osCcxAironetIE
.Length
;
1325 if (beacon
->bCcxRmEnable
) {
1326 static u8 CcxRmCapBuf
[] = {0x00, 0x40, 0x96, 0x01, 0x01, 0x00};
1327 struct octet_string osCcxRmCap
;
1329 osCcxRmCap
.Octet
= CcxRmCapBuf
;
1330 osCcxRmCap
.Length
= sizeof(CcxRmCapBuf
);
1331 tag
= skb_put(skb
, ccxrm_ie_len
);
1332 *tag
++ = MFIE_TYPE_GENERIC
;
1333 *tag
++ = osCcxRmCap
.Length
;
1334 memcpy(tag
, osCcxRmCap
.Octet
, osCcxRmCap
.Length
);
1335 tag
+= osCcxRmCap
.Length
;
1338 if (beacon
->BssCcxVerNumber
>= 2) {
1339 u8 CcxVerNumBuf
[] = {0x00, 0x40, 0x96, 0x03, 0x00};
1340 struct octet_string osCcxVerNum
;
1341 CcxVerNumBuf
[4] = beacon
->BssCcxVerNumber
;
1342 osCcxVerNum
.Octet
= CcxVerNumBuf
;
1343 osCcxVerNum
.Length
= sizeof(CcxVerNumBuf
);
1344 tag
= skb_put(skb
, cxvernum_ie_len
);
1345 *tag
++ = MFIE_TYPE_GENERIC
;
1346 *tag
++ = osCcxVerNum
.Length
;
1347 memcpy(tag
, osCcxVerNum
.Octet
, osCcxVerNum
.Length
);
1348 tag
+= osCcxVerNum
.Length
;
1350 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1351 if (ieee
->pHTInfo
->ePeerHTSpecVer
!= HT_SPEC_VER_EWC
) {
1352 tag
= skb_put(skb
, ht_cap_len
);
1353 *tag
++ = MFIE_TYPE_HT_CAP
;
1354 *tag
++ = ht_cap_len
- 2;
1355 memcpy(tag
, ht_cap_buf
, ht_cap_len
- 2);
1356 tag
+= ht_cap_len
- 2;
1361 tag
= skb_put(skb
, ieee
->wpa_ie_len
);
1362 memcpy(tag
, ieee
->wpa_ie
, ieee
->wpa_ie_len
);
1364 if (PMKCacheIdx
>= 0) {
1365 tag
= skb_put(skb
, 18);
1368 memcpy((tag
+ 2), &ieee
->PMKIDList
[PMKCacheIdx
].PMKID
,
1373 tag
= skb_put(skb
, wmm_info_len
);
1374 rtllib_WMM_Info(ieee
, &tag
);
1377 if (wps_ie_len
&& ieee
->wps_ie
) {
1378 tag
= skb_put(skb
, wps_ie_len
);
1379 memcpy(tag
, ieee
->wps_ie
, wps_ie_len
);
1382 tag
= skb_put(skb
, turbo_info_len
);
1384 rtllib_TURBO_Info(ieee
, &tag
);
1386 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1387 if (ieee
->pHTInfo
->ePeerHTSpecVer
== HT_SPEC_VER_EWC
) {
1388 tag
= skb_put(skb
, ht_cap_len
);
1389 *tag
++ = MFIE_TYPE_GENERIC
;
1390 *tag
++ = ht_cap_len
- 2;
1391 memcpy(tag
, ht_cap_buf
, ht_cap_len
- 2);
1392 tag
+= ht_cap_len
- 2;
1395 if (ieee
->pHTInfo
->bCurrentRT2RTAggregation
) {
1396 tag
= skb_put(skb
, realtek_ie_len
);
1397 *tag
++ = MFIE_TYPE_GENERIC
;
1398 *tag
++ = realtek_ie_len
- 2;
1399 memcpy(tag
, realtek_ie_buf
, realtek_ie_len
- 2);
1403 kfree(ieee
->assocreq_ies
);
1404 ieee
->assocreq_ies
= NULL
;
1405 ies
= &(hdr
->info_element
[0].id
);
1406 ieee
->assocreq_ies_len
= (skb
->data
+ skb
->len
) - ies
;
1407 ieee
->assocreq_ies
= kmalloc(ieee
->assocreq_ies_len
, GFP_ATOMIC
);
1408 if (ieee
->assocreq_ies
)
1409 memcpy(ieee
->assocreq_ies
, ies
, ieee
->assocreq_ies_len
);
1411 printk(KERN_INFO
"%s()Warning: can't alloc memory for assocreq"
1412 "_ies\n", __func__
);
1413 ieee
->assocreq_ies_len
= 0;
1418 void rtllib_associate_abort(struct rtllib_device
*ieee
)
1421 unsigned long flags
;
1422 spin_lock_irqsave(&ieee
->lock
, flags
);
1424 ieee
->associate_seq
++;
1426 /* don't scan, and avoid to have the RX path possibily
1427 * try again to associate. Even do not react to AUTH or
1428 * ASSOC response. Just wait for the retry wq to be scheduled.
1429 * Here we will check if there are good nets to associate
1430 * with, so we retry or just get back to NO_LINK and scanning
1432 if (ieee
->state
== RTLLIB_ASSOCIATING_AUTHENTICATING
) {
1433 RTLLIB_DEBUG_MGMT("Authentication failed\n");
1434 ieee
->softmac_stats
.no_auth_rs
++;
1436 RTLLIB_DEBUG_MGMT("Association failed\n");
1437 ieee
->softmac_stats
.no_ass_rs
++;
1440 ieee
->state
= RTLLIB_ASSOCIATING_RETRY
;
1442 queue_delayed_work_rsl(ieee
->wq
, &ieee
->associate_retry_wq
,
1443 RTLLIB_SOFTMAC_ASSOC_RETRY_TIME
);
1445 spin_unlock_irqrestore(&ieee
->lock
, flags
);
1448 static void rtllib_associate_abort_cb(unsigned long dev
)
1450 rtllib_associate_abort((struct rtllib_device
*) dev
);
1453 static void rtllib_associate_step1(struct rtllib_device
*ieee
, u8
* daddr
)
1455 struct rtllib_network
*beacon
= &ieee
->current_network
;
1456 struct sk_buff
*skb
;
1458 RTLLIB_DEBUG_MGMT("Stopping scan\n");
1460 ieee
->softmac_stats
.tx_auth_rq
++;
1462 skb
= rtllib_authentication_req(beacon
, ieee
, 0, daddr
);
1465 rtllib_associate_abort(ieee
);
1467 ieee
->state
= RTLLIB_ASSOCIATING_AUTHENTICATING
;
1468 RTLLIB_DEBUG_MGMT("Sending authentication request\n");
1469 softmac_mgmt_xmit(skb
, ieee
);
1470 if (!timer_pending(&ieee
->associate_timer
)) {
1471 ieee
->associate_timer
.expires
= jiffies
+ (HZ
/ 2);
1472 add_timer(&ieee
->associate_timer
);
1477 static void rtllib_auth_challenge(struct rtllib_device
*ieee
, u8
*challenge
, int chlen
)
1480 struct sk_buff
*skb
;
1481 struct rtllib_network
*beacon
= &ieee
->current_network
;
1483 ieee
->associate_seq
++;
1484 ieee
->softmac_stats
.tx_auth_rq
++;
1486 skb
= rtllib_authentication_req(beacon
, ieee
, chlen
+ 2, beacon
->bssid
);
1489 rtllib_associate_abort(ieee
);
1491 c
= skb_put(skb
, chlen
+2);
1492 *(c
++) = MFIE_TYPE_CHALLENGE
;
1494 memcpy(c
, challenge
, chlen
);
1496 RTLLIB_DEBUG_MGMT("Sending authentication challenge "
1499 rtllib_encrypt_fragment(ieee
, skb
,
1500 sizeof(struct rtllib_hdr_3addr
));
1502 softmac_mgmt_xmit(skb
, ieee
);
1503 mod_timer(&ieee
->associate_timer
, jiffies
+ (HZ
/2));
1508 static void rtllib_associate_step2(struct rtllib_device
*ieee
)
1510 struct sk_buff
*skb
;
1511 struct rtllib_network
*beacon
= &ieee
->current_network
;
1513 del_timer_sync(&ieee
->associate_timer
);
1515 RTLLIB_DEBUG_MGMT("Sending association request\n");
1517 ieee
->softmac_stats
.tx_ass_rq
++;
1518 skb
= rtllib_association_req(beacon
, ieee
);
1520 rtllib_associate_abort(ieee
);
1522 softmac_mgmt_xmit(skb
, ieee
);
1523 mod_timer(&ieee
->associate_timer
, jiffies
+ (HZ
/2));
1528 static void rtllib_associate_complete_wq(void *data
)
1530 struct rtllib_device
*ieee
= (struct rtllib_device
*)
1531 container_of_work_rsl(data
,
1532 struct rtllib_device
,
1533 associate_complete_wq
);
1534 struct rt_pwr_save_ctrl
*pPSC
= (struct rt_pwr_save_ctrl
*)
1535 (&(ieee
->PowerSaveControl
));
1536 printk(KERN_INFO
"Associated successfully\n");
1537 if (ieee
->is_silent_reset
== 0) {
1538 printk(KERN_INFO
"normal associate\n");
1539 notify_wx_assoc_event(ieee
);
1542 netif_carrier_on(ieee
->dev
);
1543 ieee
->is_roaming
= false;
1544 if (rtllib_is_54g(&ieee
->current_network
) &&
1545 (ieee
->modulation
& RTLLIB_OFDM_MODULATION
)) {
1547 printk(KERN_INFO
"Using G rates:%d\n", ieee
->rate
);
1550 ieee
->SetWirelessMode(ieee
->dev
, IEEE_B
);
1551 printk(KERN_INFO
"Using B rates:%d\n", ieee
->rate
);
1553 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1554 printk(KERN_INFO
"Successfully associated, ht enabled\n");
1557 printk(KERN_INFO
"Successfully associated, ht not "
1558 "enabled(%d, %d)\n",
1559 ieee
->pHTInfo
->bCurrentHTSupport
,
1560 ieee
->pHTInfo
->bEnableHT
);
1561 memset(ieee
->dot11HTOperationalRateSet
, 0, 16);
1563 ieee
->LinkDetectInfo
.SlotNum
= 2 * (1 +
1564 ieee
->current_network
.beacon_interval
/
1566 if (ieee
->LinkDetectInfo
.NumRecvBcnInPeriod
== 0 ||
1567 ieee
->LinkDetectInfo
.NumRecvDataInPeriod
== 0) {
1568 ieee
->LinkDetectInfo
.NumRecvBcnInPeriod
= 1;
1569 ieee
->LinkDetectInfo
.NumRecvDataInPeriod
= 1;
1571 pPSC
->LpsIdleCount
= 0;
1572 ieee
->link_change(ieee
->dev
);
1574 if (ieee
->is_silent_reset
== 1) {
1575 printk(KERN_INFO
"silent reset associate\n");
1576 ieee
->is_silent_reset
= 0;
1579 if (ieee
->data_hard_resume
)
1580 ieee
->data_hard_resume(ieee
->dev
);
1584 static void rtllib_sta_send_associnfo(struct rtllib_device
*ieee
)
1588 static void rtllib_associate_complete(struct rtllib_device
*ieee
)
1590 del_timer_sync(&ieee
->associate_timer
);
1592 ieee
->state
= RTLLIB_LINKED
;
1593 rtllib_sta_send_associnfo(ieee
);
1595 queue_work_rsl(ieee
->wq
, &ieee
->associate_complete_wq
);
1598 static void rtllib_associate_procedure_wq(void *data
)
1600 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
1601 struct rtllib_device
,
1602 associate_procedure_wq
);
1603 rtllib_stop_scan_syncro(ieee
);
1604 if (ieee
->rtllib_ips_leave
!= NULL
)
1605 ieee
->rtllib_ips_leave(ieee
->dev
);
1606 down(&ieee
->wx_sem
);
1608 if (ieee
->data_hard_stop
)
1609 ieee
->data_hard_stop(ieee
->dev
);
1611 rtllib_stop_scan(ieee
);
1612 RT_TRACE(COMP_DBG
, "===>%s(), chan:%d\n", __func__
,
1613 ieee
->current_network
.channel
);
1614 HTSetConnectBwMode(ieee
, HT_CHANNEL_WIDTH_20
, HT_EXTCHNL_OFFSET_NO_EXT
);
1615 if (ieee
->eRFPowerState
== eRfOff
) {
1616 RT_TRACE(COMP_DBG
, "=============>%s():Rf state is eRfOff,"
1617 " schedule ipsleave wq again,return\n", __func__
);
1618 if (ieee
->rtllib_ips_leave_wq
!= NULL
)
1619 ieee
->rtllib_ips_leave_wq(ieee
->dev
);
1623 ieee
->associate_seq
= 1;
1625 rtllib_associate_step1(ieee
, ieee
->current_network
.bssid
);
1630 inline void rtllib_softmac_new_net(struct rtllib_device
*ieee
,
1631 struct rtllib_network
*net
)
1633 u8 tmp_ssid
[IW_ESSID_MAX_SIZE
+ 1];
1634 int tmp_ssid_len
= 0;
1636 short apset
, ssidset
, ssidbroad
, apmatch
, ssidmatch
;
1638 /* we are interested in new new only if we are not associated
1639 * and we are not associating / authenticating
1641 if (ieee
->state
!= RTLLIB_NOLINK
)
1644 if ((ieee
->iw_mode
== IW_MODE_INFRA
) && !(net
->capability
&
1645 WLAN_CAPABILITY_ESS
))
1648 if ((ieee
->iw_mode
== IW_MODE_ADHOC
) && !(net
->capability
&
1649 WLAN_CAPABILITY_IBSS
))
1652 if ((ieee
->iw_mode
== IW_MODE_ADHOC
) &&
1653 (net
->channel
> ieee
->ibss_maxjoin_chal
))
1655 if (ieee
->iw_mode
== IW_MODE_INFRA
|| ieee
->iw_mode
== IW_MODE_ADHOC
) {
1656 /* if the user specified the AP MAC, we need also the essid
1657 * This could be obtained by beacons or, if the network does not
1658 * broadcast it, it can be put manually.
1660 apset
= ieee
->wap_set
;
1661 ssidset
= ieee
->ssid_set
;
1662 ssidbroad
= !(net
->ssid_len
== 0 || net
->ssid
[0] == '\0');
1663 apmatch
= (memcmp(ieee
->current_network
.bssid
, net
->bssid
,
1666 ssidmatch
= (ieee
->current_network
.ssid_len
==
1667 net
->hidden_ssid_len
) &&
1668 (!strncmp(ieee
->current_network
.ssid
,
1669 net
->hidden_ssid
, net
->hidden_ssid_len
));
1670 if (net
->hidden_ssid_len
> 0) {
1671 strncpy(net
->ssid
, net
->hidden_ssid
,
1672 net
->hidden_ssid_len
);
1673 net
->ssid_len
= net
->hidden_ssid_len
;
1678 (ieee
->current_network
.ssid_len
== net
->ssid_len
) &&
1679 (!strncmp(ieee
->current_network
.ssid
, net
->ssid
,
1682 /* if the user set the AP check if match.
1683 * if the network does not broadcast essid we check the
1684 * user supplied ANY essid
1685 * if the network does broadcast and the user does not set
1687 * if the network does broadcast and the user did set essid
1688 * check if essid match
1689 * if the ap is not set, check that the user set the bssid
1690 * and the network does bradcast and that those two bssid match
1692 if ((apset
&& apmatch
&&
1693 ((ssidset
&& ssidbroad
&& ssidmatch
) ||
1694 (ssidbroad
&& !ssidset
) || (!ssidbroad
&& ssidset
))) ||
1695 (!apset
&& ssidset
&& ssidbroad
&& ssidmatch
) ||
1696 (ieee
->is_roaming
&& ssidset
&& ssidbroad
&& ssidmatch
)) {
1697 /* if the essid is hidden replace it with the
1698 * essid provided by the user.
1701 strncpy(tmp_ssid
, ieee
->current_network
.ssid
,
1703 tmp_ssid_len
= ieee
->current_network
.ssid_len
;
1705 memcpy(&ieee
->current_network
, net
,
1706 sizeof(struct rtllib_network
));
1708 strncpy(ieee
->current_network
.ssid
, tmp_ssid
,
1710 ieee
->current_network
.ssid_len
= tmp_ssid_len
;
1712 printk(KERN_INFO
"Linking with %s,channel:%d, qos:%d, "
1713 "myHT:%d, networkHT:%d, mode:%x cur_net.flags"
1714 ":0x%x\n", ieee
->current_network
.ssid
,
1715 ieee
->current_network
.channel
,
1716 ieee
->current_network
.qos_data
.supported
,
1717 ieee
->pHTInfo
->bEnableHT
,
1718 ieee
->current_network
.bssht
.bdSupportHT
,
1719 ieee
->current_network
.mode
,
1720 ieee
->current_network
.flags
);
1722 if ((rtllib_act_scanning(ieee
, false)) &&
1723 !(ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
))
1724 rtllib_stop_scan_syncro(ieee
);
1726 ieee
->hwscan_ch_bk
= ieee
->current_network
.channel
;
1727 HTResetIOTSetting(ieee
->pHTInfo
);
1729 if (ieee
->iw_mode
== IW_MODE_INFRA
) {
1730 /* Join the network for the first time */
1731 ieee
->AsocRetryCount
= 0;
1732 if ((ieee
->current_network
.qos_data
.supported
== 1) &&
1733 ieee
->current_network
.bssht
.bdSupportHT
)
1734 HTResetSelfAndSavePeerSetting(ieee
,
1735 &(ieee
->current_network
));
1737 ieee
->pHTInfo
->bCurrentHTSupport
=
1740 ieee
->state
= RTLLIB_ASSOCIATING
;
1741 if (ieee
->LedControlHandler
!= NULL
)
1742 ieee
->LedControlHandler(ieee
->dev
,
1743 LED_CTL_START_TO_LINK
);
1744 queue_delayed_work_rsl(ieee
->wq
,
1745 &ieee
->associate_procedure_wq
, 0);
1747 if (rtllib_is_54g(&ieee
->current_network
) &&
1748 (ieee
->modulation
& RTLLIB_OFDM_MODULATION
)) {
1750 ieee
->SetWirelessMode(ieee
->dev
, IEEE_G
);
1751 printk(KERN_INFO
"Using G rates\n");
1754 ieee
->SetWirelessMode(ieee
->dev
, IEEE_B
);
1755 printk(KERN_INFO
"Using B rates\n");
1757 memset(ieee
->dot11HTOperationalRateSet
, 0, 16);
1758 ieee
->state
= RTLLIB_LINKED
;
1764 void rtllib_softmac_check_all_nets(struct rtllib_device
*ieee
)
1766 unsigned long flags
;
1767 struct rtllib_network
*target
;
1769 spin_lock_irqsave(&ieee
->lock
, flags
);
1771 list_for_each_entry(target
, &ieee
->network_list
, list
) {
1773 /* if the state become different that NOLINK means
1774 * we had found what we are searching for
1777 if (ieee
->state
!= RTLLIB_NOLINK
)
1780 if (ieee
->scan_age
== 0 || time_after(target
->last_scanned
+
1781 ieee
->scan_age
, jiffies
))
1782 rtllib_softmac_new_net(ieee
, target
);
1784 spin_unlock_irqrestore(&ieee
->lock
, flags
);
1787 static inline u16
auth_parse(struct sk_buff
*skb
, u8
** challenge
, int *chlen
)
1789 struct rtllib_authentication
*a
;
1791 if (skb
->len
< (sizeof(struct rtllib_authentication
) -
1792 sizeof(struct rtllib_info_element
))) {
1793 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb
->len
);
1797 a
= (struct rtllib_authentication
*) skb
->data
;
1798 if (skb
->len
> (sizeof(struct rtllib_authentication
) + 3)) {
1799 t
= skb
->data
+ sizeof(struct rtllib_authentication
);
1801 if (*(t
++) == MFIE_TYPE_CHALLENGE
) {
1803 *challenge
= kmalloc(*chlen
, GFP_ATOMIC
);
1804 memcpy(*challenge
, t
, *chlen
); /*TODO - check here*/
1807 return cpu_to_le16(a
->status
);
1810 static int auth_rq_parse(struct sk_buff
*skb
, u8
*dest
)
1812 struct rtllib_authentication
*a
;
1814 if (skb
->len
< (sizeof(struct rtllib_authentication
) -
1815 sizeof(struct rtllib_info_element
))) {
1816 RTLLIB_DEBUG_MGMT("invalid len in auth request: %d\n",
1820 a
= (struct rtllib_authentication
*) skb
->data
;
1822 memcpy(dest
, a
->header
.addr2
, ETH_ALEN
);
1824 if (le16_to_cpu(a
->algorithm
) != WLAN_AUTH_OPEN
)
1825 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG
;
1827 return WLAN_STATUS_SUCCESS
;
1830 static short probe_rq_parse(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
1837 struct rtllib_hdr_3addr
*header
=
1838 (struct rtllib_hdr_3addr
*) skb
->data
;
1841 if (skb
->len
< sizeof(struct rtllib_hdr_3addr
))
1842 return -1; /* corrupted */
1845 (memcmp(header
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
) != 0) &&
1846 (memcmp(header
->addr3
, "\xff\xff\xff\xff\xff\xff", ETH_ALEN
) != 0);
1850 memcpy(src
, header
->addr2
, ETH_ALEN
);
1852 skbend
= (u8
*)skb
->data
+ skb
->len
;
1854 tag
= skb
->data
+ sizeof(struct rtllib_hdr_3addr
);
1856 while (tag
+ 1 < skbend
) {
1859 ssidlen
= *(tag
+ 1);
1862 tag
++; /* point to the len field */
1863 tag
= tag
+ *(tag
); /* point to the last data byte of the tag */
1864 tag
++; /* point to the next tag */
1871 return 1; /* ssid not found in tagged param */
1873 return !strncmp(ssid
, ieee
->current_network
.ssid
, ssidlen
);
1876 static int assoc_rq_parse(struct sk_buff
*skb
, u8
*dest
)
1878 struct rtllib_assoc_request_frame
*a
;
1880 if (skb
->len
< (sizeof(struct rtllib_assoc_request_frame
) -
1881 sizeof(struct rtllib_info_element
))) {
1883 RTLLIB_DEBUG_MGMT("invalid len in auth request:%d\n", skb
->len
);
1887 a
= (struct rtllib_assoc_request_frame
*) skb
->data
;
1889 memcpy(dest
, a
->header
.addr2
, ETH_ALEN
);
1894 static inline u16
assoc_parse(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
1897 struct rtllib_assoc_response_frame
*response_head
;
1900 if (skb
->len
< sizeof(struct rtllib_assoc_response_frame
)) {
1901 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb
->len
);
1905 response_head
= (struct rtllib_assoc_response_frame
*) skb
->data
;
1906 *aid
= le16_to_cpu(response_head
->aid
) & 0x3fff;
1908 status_code
= le16_to_cpu(response_head
->status
);
1909 if ((status_code
== WLAN_STATUS_ASSOC_DENIED_RATES
||
1910 status_code
== WLAN_STATUS_CAPS_UNSUPPORTED
) &&
1911 ((ieee
->mode
== IEEE_G
) &&
1912 (ieee
->current_network
.mode
== IEEE_N_24G
) &&
1913 (ieee
->AsocRetryCount
++ < (RT_ASOC_RETRY_LIMIT
-1)))) {
1914 ieee
->pHTInfo
->IOTAction
|= HT_IOT_ACT_PURE_N_MODE
;
1916 ieee
->AsocRetryCount
= 0;
1919 return le16_to_cpu(response_head
->status
);
1922 void rtllib_rx_probe_rq(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
1925 ieee
->softmac_stats
.rx_probe_rq
++;
1926 if (probe_rq_parse(ieee
, skb
, dest
) > 0) {
1927 ieee
->softmac_stats
.tx_probe_rs
++;
1928 rtllib_resp_to_probe(ieee
, dest
);
1932 static inline void rtllib_rx_auth_rq(struct rtllib_device
*ieee
,
1933 struct sk_buff
*skb
)
1937 ieee
->softmac_stats
.rx_auth_rq
++;
1939 status
= auth_rq_parse(skb
, dest
);
1941 rtllib_resp_to_auth(ieee
, status
, dest
);
1944 static inline void rtllib_rx_assoc_rq(struct rtllib_device
*ieee
,
1945 struct sk_buff
*skb
)
1950 ieee
->softmac_stats
.rx_ass_rq
++;
1951 if (assoc_rq_parse(skb
, dest
) != -1)
1952 rtllib_resp_to_assoc_rq(ieee
, dest
);
1954 printk(KERN_INFO
"New client associated: %pM\n", dest
);
1957 void rtllib_sta_ps_send_null_frame(struct rtllib_device
*ieee
, short pwr
)
1960 struct sk_buff
*buf
= rtllib_null_func(ieee
, pwr
);
1963 softmac_ps_mgmt_xmit(buf
, ieee
);
1965 EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame
);
1967 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device
*ieee
)
1969 struct sk_buff
*buf
= rtllib_pspoll_func(ieee
);
1972 softmac_ps_mgmt_xmit(buf
, ieee
);
1975 static short rtllib_sta_ps_sleep(struct rtllib_device
*ieee
, u64
*time
)
1977 int timeout
= ieee
->ps_timeout
;
1979 struct rt_pwr_save_ctrl
*pPSC
= (struct rt_pwr_save_ctrl
*)
1980 (&(ieee
->PowerSaveControl
));
1982 if (ieee
->LPSDelayCnt
) {
1983 ieee
->LPSDelayCnt
--;
1987 dtim
= ieee
->current_network
.dtim_data
;
1988 if (!(dtim
& RTLLIB_DTIM_VALID
))
1990 timeout
= ieee
->current_network
.beacon_interval
;
1991 ieee
->current_network
.dtim_data
= RTLLIB_DTIM_INVALID
;
1992 /* there's no need to nofity AP that I find you buffered
1993 * with broadcast packet */
1994 if (dtim
& (RTLLIB_DTIM_UCAST
& ieee
->ps
))
1997 if (!time_after(jiffies
, ieee
->dev
->trans_start
+ MSECS(timeout
)))
1999 if (!time_after(jiffies
, ieee
->last_rx_ps_time
+ MSECS(timeout
)))
2001 if ((ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
) &&
2002 (ieee
->mgmt_queue_tail
!= ieee
->mgmt_queue_head
))
2006 if (ieee
->bAwakePktSent
== true) {
2007 pPSC
->LPSAwakeIntvl
= 1;
2011 if (pPSC
->LPSAwakeIntvl
== 0)
2012 pPSC
->LPSAwakeIntvl
= 1;
2013 if (pPSC
->RegMaxLPSAwakeIntvl
== 0)
2015 else if (pPSC
->RegMaxLPSAwakeIntvl
== 0xFF)
2016 MaxPeriod
= ieee
->current_network
.dtim_period
;
2018 MaxPeriod
= pPSC
->RegMaxLPSAwakeIntvl
;
2019 pPSC
->LPSAwakeIntvl
= (pPSC
->LPSAwakeIntvl
>=
2020 MaxPeriod
) ? MaxPeriod
:
2021 (pPSC
->LPSAwakeIntvl
+ 1);
2024 u8 LPSAwakeIntvl_tmp
= 0;
2025 u8 period
= ieee
->current_network
.dtim_period
;
2026 u8 count
= ieee
->current_network
.tim
.tim_count
;
2028 if (pPSC
->LPSAwakeIntvl
> period
)
2029 LPSAwakeIntvl_tmp
= period
+
2030 (pPSC
->LPSAwakeIntvl
-
2032 ((pPSC
->LPSAwakeIntvl
-period
) %
2035 LPSAwakeIntvl_tmp
= pPSC
->LPSAwakeIntvl
;
2038 if (pPSC
->LPSAwakeIntvl
>
2039 ieee
->current_network
.tim
.tim_count
)
2040 LPSAwakeIntvl_tmp
= count
+
2041 (pPSC
->LPSAwakeIntvl
- count
) -
2042 ((pPSC
->LPSAwakeIntvl
-count
)%period
);
2044 LPSAwakeIntvl_tmp
= pPSC
->LPSAwakeIntvl
;
2047 *time
= ieee
->current_network
.last_dtim_sta_time
2048 + MSECS(ieee
->current_network
.beacon_interval
*
2058 static inline void rtllib_sta_ps(struct rtllib_device
*ieee
)
2062 unsigned long flags
, flags2
;
2064 spin_lock_irqsave(&ieee
->lock
, flags
);
2066 if ((ieee
->ps
== RTLLIB_PS_DISABLED
||
2067 ieee
->iw_mode
!= IW_MODE_INFRA
||
2068 ieee
->state
!= RTLLIB_LINKED
)) {
2069 RT_TRACE(COMP_DBG
, "=====>%s(): no need to ps,wake up!! "
2070 "ieee->ps is %d, ieee->iw_mode is %d, ieee->state"
2071 " is %d\n", __func__
, ieee
->ps
, ieee
->iw_mode
,
2073 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2074 rtllib_sta_wakeup(ieee
, 1);
2076 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2078 sleep
= rtllib_sta_ps_sleep(ieee
, &time
);
2079 /* 2 wake, 1 sleep, 0 do nothing */
2083 if (ieee
->sta_sleep
== LPS_IS_SLEEP
) {
2084 ieee
->enter_sleep_state(ieee
->dev
, time
);
2085 } else if (ieee
->sta_sleep
== LPS_IS_WAKE
) {
2086 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2088 if (ieee
->ps_is_queue_empty(ieee
->dev
)) {
2089 ieee
->sta_sleep
= LPS_WAIT_NULL_DATA_SEND
;
2090 ieee
->ack_tx_to_ieee
= 1;
2091 rtllib_sta_ps_send_null_frame(ieee
, 1);
2092 ieee
->ps_time
= time
;
2094 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2098 ieee
->bAwakePktSent
= false;
2100 } else if (sleep
== 2) {
2101 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2103 rtllib_sta_wakeup(ieee
, 1);
2105 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2109 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2113 void rtllib_sta_wakeup(struct rtllib_device
*ieee
, short nl
)
2115 if (ieee
->sta_sleep
== LPS_IS_WAKE
) {
2117 if (ieee
->pHTInfo
->IOTAction
&
2118 HT_IOT_ACT_NULL_DATA_POWER_SAVING
) {
2119 ieee
->ack_tx_to_ieee
= 1;
2120 rtllib_sta_ps_send_null_frame(ieee
, 0);
2122 ieee
->ack_tx_to_ieee
= 1;
2123 rtllib_sta_ps_send_pspoll_frame(ieee
);
2130 if (ieee
->sta_sleep
== LPS_IS_SLEEP
)
2131 ieee
->sta_wake_up(ieee
->dev
);
2133 if (ieee
->pHTInfo
->IOTAction
&
2134 HT_IOT_ACT_NULL_DATA_POWER_SAVING
) {
2135 ieee
->ack_tx_to_ieee
= 1;
2136 rtllib_sta_ps_send_null_frame(ieee
, 0);
2138 ieee
->ack_tx_to_ieee
= 1;
2139 ieee
->polling
= true;
2140 rtllib_sta_ps_send_pspoll_frame(ieee
);
2144 ieee
->sta_sleep
= LPS_IS_WAKE
;
2145 ieee
->polling
= false;
2149 void rtllib_ps_tx_ack(struct rtllib_device
*ieee
, short success
)
2151 unsigned long flags
, flags2
;
2153 spin_lock_irqsave(&ieee
->lock
, flags
);
2155 if (ieee
->sta_sleep
== LPS_WAIT_NULL_DATA_SEND
) {
2156 /* Null frame with PS bit set */
2158 ieee
->sta_sleep
= LPS_IS_SLEEP
;
2159 ieee
->enter_sleep_state(ieee
->dev
, ieee
->ps_time
);
2161 /* if the card report not success we can't be sure the AP
2162 * has not RXed so we can't assume the AP believe us awake
2164 } else {/* 21112005 - tx again null without PS bit if lost */
2166 if ((ieee
->sta_sleep
== LPS_IS_WAKE
) && !success
) {
2167 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2168 if (ieee
->pHTInfo
->IOTAction
&
2169 HT_IOT_ACT_NULL_DATA_POWER_SAVING
)
2170 rtllib_sta_ps_send_null_frame(ieee
, 0);
2172 rtllib_sta_ps_send_pspoll_frame(ieee
);
2173 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2176 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2178 EXPORT_SYMBOL(rtllib_ps_tx_ack
);
2180 static void rtllib_process_action(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
2182 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2183 u8
*act
= rtllib_get_payload((struct rtllib_hdr
*)header
);
2187 RTLLIB_DEBUG(RTLLIB_DL_ERR
, "error to get payload of "
2198 rtllib_rx_ADDBAReq(ieee
, skb
);
2201 rtllib_rx_ADDBARsp(ieee
, skb
);
2204 rtllib_rx_DELBA(ieee
, skb
);
2214 inline int rtllib_rx_assoc_resp(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
2215 struct rtllib_rx_stats
*rx_stats
)
2220 struct rtllib_assoc_response_frame
*assoc_resp
;
2221 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2223 RTLLIB_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
2224 WLAN_FC_GET_STYPE(header
->frame_ctl
));
2226 if ((ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) &&
2227 ieee
->state
== RTLLIB_ASSOCIATING_AUTHENTICATED
&&
2228 (ieee
->iw_mode
== IW_MODE_INFRA
)) {
2229 errcode
= assoc_parse(ieee
, skb
, &aid
);
2231 struct rtllib_network
*network
=
2232 kzalloc(sizeof(struct rtllib_network
),
2237 ieee
->state
= RTLLIB_LINKED
;
2238 ieee
->assoc_id
= aid
;
2239 ieee
->softmac_stats
.rx_ass_ok
++;
2240 /* station support qos */
2241 /* Let the register setting default with Legacy station */
2242 assoc_resp
= (struct rtllib_assoc_response_frame
*)skb
->data
;
2243 if (ieee
->current_network
.qos_data
.supported
== 1) {
2244 if (rtllib_parse_info_param(ieee
, assoc_resp
->info_element
,
2245 rx_stats
->len
- sizeof(*assoc_resp
),
2246 network
, rx_stats
)) {
2250 memcpy(ieee
->pHTInfo
->PeerHTCapBuf
,
2251 network
->bssht
.bdHTCapBuf
,
2252 network
->bssht
.bdHTCapLen
);
2253 memcpy(ieee
->pHTInfo
->PeerHTInfoBuf
,
2254 network
->bssht
.bdHTInfoBuf
,
2255 network
->bssht
.bdHTInfoLen
);
2257 if (ieee
->handle_assoc_response
!= NULL
)
2258 ieee
->handle_assoc_response(ieee
->dev
,
2259 (struct rtllib_assoc_response_frame
*)header
,
2264 kfree(ieee
->assocresp_ies
);
2265 ieee
->assocresp_ies
= NULL
;
2266 ies
= &(assoc_resp
->info_element
[0].id
);
2267 ieee
->assocresp_ies_len
= (skb
->data
+ skb
->len
) - ies
;
2268 ieee
->assocresp_ies
= kmalloc(ieee
->assocresp_ies_len
,
2270 if (ieee
->assocresp_ies
)
2271 memcpy(ieee
->assocresp_ies
, ies
,
2272 ieee
->assocresp_ies_len
);
2274 printk(KERN_INFO
"%s()Warning: can't alloc "
2275 "memory for assocresp_ies\n", __func__
);
2276 ieee
->assocresp_ies_len
= 0;
2278 rtllib_associate_complete(ieee
);
2280 /* aid could not been allocated */
2281 ieee
->softmac_stats
.rx_ass_err
++;
2282 printk(KERN_INFO
"Association response status code 0x%x\n",
2285 "Association response status code 0x%x\n",
2287 if (ieee
->AsocRetryCount
< RT_ASOC_RETRY_LIMIT
)
2288 queue_delayed_work_rsl(ieee
->wq
,
2289 &ieee
->associate_procedure_wq
, 0);
2291 rtllib_associate_abort(ieee
);
2297 inline int rtllib_rx_auth(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
2298 struct rtllib_rx_stats
*rx_stats
)
2303 bool bSupportNmode
= true, bHalfSupportNmode
= false;
2305 if (ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) {
2306 if (ieee
->state
== RTLLIB_ASSOCIATING_AUTHENTICATING
&&
2307 (ieee
->iw_mode
== IW_MODE_INFRA
)) {
2308 RTLLIB_DEBUG_MGMT("Received authentication response");
2310 errcode
= auth_parse(skb
, &challenge
, &chlen
);
2312 if (ieee
->open_wep
|| !challenge
) {
2313 ieee
->state
= RTLLIB_ASSOCIATING_AUTHENTICATED
;
2314 ieee
->softmac_stats
.rx_auth_rs_ok
++;
2315 if (!(ieee
->pHTInfo
->IOTAction
&
2316 HT_IOT_ACT_PURE_N_MODE
)) {
2317 if (!ieee
->GetNmodeSupportBySecCfg(ieee
->dev
)) {
2318 if (IsHTHalfNmodeAPs(ieee
)) {
2319 bSupportNmode
= true;
2320 bHalfSupportNmode
= true;
2322 bSupportNmode
= false;
2323 bHalfSupportNmode
= false;
2327 /* Dummy wirless mode setting to avoid
2328 * encryption issue */
2329 if (bSupportNmode
) {
2330 ieee
->SetWirelessMode(ieee
->dev
,
2331 ieee
->current_network
.mode
);
2334 ieee
->SetWirelessMode(ieee
->dev
,
2338 if (ieee
->current_network
.mode
==
2340 bHalfSupportNmode
== true) {
2341 printk(KERN_INFO
"======>enter "
2343 ieee
->bHalfWirelessN24GMode
=
2346 ieee
->bHalfWirelessN24GMode
=
2349 rtllib_associate_step2(ieee
);
2351 rtllib_auth_challenge(ieee
, challenge
,
2355 ieee
->softmac_stats
.rx_auth_rs_err
++;
2356 RTLLIB_DEBUG_MGMT("Authentication respose"
2357 " status code 0x%x", errcode
);
2359 printk(KERN_INFO
"Authentication respose "
2360 "status code 0x%x", errcode
);
2361 rtllib_associate_abort(ieee
);
2364 } else if (ieee
->iw_mode
== IW_MODE_MASTER
) {
2365 rtllib_rx_auth_rq(ieee
, skb
);
2371 inline int rtllib_rx_deauth(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
2373 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2375 if (memcmp(header
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
) != 0)
2378 /* FIXME for now repeat all the association procedure
2379 * both for disassociation and deauthentication
2381 if ((ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) &&
2382 ieee
->state
== RTLLIB_LINKED
&&
2383 (ieee
->iw_mode
== IW_MODE_INFRA
)) {
2384 printk(KERN_INFO
"==========>received disassoc/deauth(%x) "
2385 "frame, reason code:%x\n",
2386 WLAN_FC_GET_STYPE(header
->frame_ctl
),
2387 ((struct rtllib_disassoc
*)skb
->data
)->reason
);
2388 ieee
->state
= RTLLIB_ASSOCIATING
;
2389 ieee
->softmac_stats
.reassoc
++;
2390 ieee
->is_roaming
= true;
2391 ieee
->LinkDetectInfo
.bBusyTraffic
= false;
2392 rtllib_disassociate(ieee
);
2393 RemovePeerTS(ieee
, header
->addr2
);
2394 if (ieee
->LedControlHandler
!= NULL
)
2395 ieee
->LedControlHandler(ieee
->dev
,
2396 LED_CTL_START_TO_LINK
);
2398 if (!(ieee
->rtllib_ap_sec_type(ieee
) &
2399 (SEC_ALG_CCMP
|SEC_ALG_TKIP
)))
2400 queue_delayed_work_rsl(ieee
->wq
,
2401 &ieee
->associate_procedure_wq
, 5);
2406 inline int rtllib_rx_frame_softmac(struct rtllib_device
*ieee
,
2407 struct sk_buff
*skb
,
2408 struct rtllib_rx_stats
*rx_stats
, u16 type
,
2411 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2413 if (!ieee
->proto_started
)
2416 switch (WLAN_FC_GET_STYPE(header
->frame_ctl
)) {
2417 case RTLLIB_STYPE_ASSOC_RESP
:
2418 case RTLLIB_STYPE_REASSOC_RESP
:
2419 if (rtllib_rx_assoc_resp(ieee
, skb
, rx_stats
) == 1)
2422 case RTLLIB_STYPE_ASSOC_REQ
:
2423 case RTLLIB_STYPE_REASSOC_REQ
:
2424 if ((ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) &&
2425 ieee
->iw_mode
== IW_MODE_MASTER
)
2426 rtllib_rx_assoc_rq(ieee
, skb
);
2428 case RTLLIB_STYPE_AUTH
:
2429 rtllib_rx_auth(ieee
, skb
, rx_stats
);
2431 case RTLLIB_STYPE_DISASSOC
:
2432 case RTLLIB_STYPE_DEAUTH
:
2433 rtllib_rx_deauth(ieee
, skb
);
2435 case RTLLIB_STYPE_MANAGE_ACT
:
2436 rtllib_process_action(ieee
, skb
);
2445 /* following are for a simplier TX queue management.
2446 * Instead of using netif_[stop/wake]_queue the driver
2447 * will use these two functions (plus a reset one), that
2448 * will internally use the kernel netif_* and takes
2449 * care of the ieee802.11 fragmentation.
2450 * So the driver receives a fragment per time and might
2451 * call the stop function when it wants to not
2452 * have enough room to TX an entire packet.
2453 * This might be useful if each fragment needs it's own
2454 * descriptor, thus just keep a total free memory > than
2455 * the max fragmentation threshold is not enough.. If the
2456 * ieee802.11 stack passed a TXB struct then you need
2457 * to keep N free descriptors where
2458 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
2459 * In this way you need just one and the 802.11 stack
2460 * will take care of buffering fragments and pass them to
2461 * to the driver later, when it wakes the queue.
2463 void rtllib_softmac_xmit(struct rtllib_txb
*txb
, struct rtllib_device
*ieee
)
2466 unsigned int queue_index
= txb
->queue_index
;
2467 unsigned long flags
;
2469 struct cb_desc
*tcb_desc
= NULL
;
2470 unsigned long queue_len
= 0;
2472 spin_lock_irqsave(&ieee
->lock
, flags
);
2474 /* called with 2nd parm 0, no tx mgmt lock required */
2475 rtllib_sta_wakeup(ieee
, 0);
2477 /* update the tx status */
2478 tcb_desc
= (struct cb_desc
*)(txb
->fragments
[0]->cb
+
2480 if (tcb_desc
->bMulticast
)
2481 ieee
->stats
.multicast
++;
2483 /* if xmit available, just xmit it immediately, else just insert it to
2485 for (i
= 0; i
< txb
->nr_frags
; i
++) {
2486 queue_len
= skb_queue_len(&ieee
->skb_waitQ
[queue_index
]);
2487 if ((queue_len
!= 0) ||\
2488 (!ieee
->check_nic_enough_desc(ieee
->dev
, queue_index
)) ||
2489 (ieee
->queue_stop
)) {
2490 /* insert the skb packet to the wait queue */
2491 /* as for the completion function, it does not need
2492 * to check it any more.
2494 if (queue_len
< 200)
2495 skb_queue_tail(&ieee
->skb_waitQ
[queue_index
],
2498 kfree_skb(txb
->fragments
[i
]);
2500 ieee
->softmac_data_hard_start_xmit(
2502 ieee
->dev
, ieee
->rate
);
2506 rtllib_txb_free(txb
);
2508 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2512 /* called with ieee->lock acquired */
2513 static void rtllib_resume_tx(struct rtllib_device
*ieee
)
2516 for (i
= ieee
->tx_pending
.frag
; i
< ieee
->tx_pending
.txb
->nr_frags
;
2519 if (ieee
->queue_stop
) {
2520 ieee
->tx_pending
.frag
= i
;
2524 ieee
->softmac_data_hard_start_xmit(
2525 ieee
->tx_pending
.txb
->fragments
[i
],
2526 ieee
->dev
, ieee
->rate
);
2527 ieee
->stats
.tx_packets
++;
2531 rtllib_txb_free(ieee
->tx_pending
.txb
);
2532 ieee
->tx_pending
.txb
= NULL
;
2536 void rtllib_reset_queue(struct rtllib_device
*ieee
)
2538 unsigned long flags
;
2540 spin_lock_irqsave(&ieee
->lock
, flags
);
2541 init_mgmt_queue(ieee
);
2542 if (ieee
->tx_pending
.txb
) {
2543 rtllib_txb_free(ieee
->tx_pending
.txb
);
2544 ieee
->tx_pending
.txb
= NULL
;
2546 ieee
->queue_stop
= 0;
2547 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2550 EXPORT_SYMBOL(rtllib_reset_queue
);
2552 void rtllib_wake_queue(struct rtllib_device
*ieee
)
2555 unsigned long flags
;
2556 struct sk_buff
*skb
;
2557 struct rtllib_hdr_3addr
*header
;
2559 spin_lock_irqsave(&ieee
->lock
, flags
);
2560 if (!ieee
->queue_stop
)
2563 ieee
->queue_stop
= 0;
2565 if (ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
) {
2566 while (!ieee
->queue_stop
&& (skb
= dequeue_mgmt(ieee
))) {
2568 header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2570 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
2572 if (ieee
->seq_ctrl
[0] == 0xFFF)
2573 ieee
->seq_ctrl
[0] = 0;
2575 ieee
->seq_ctrl
[0]++;
2577 ieee
->softmac_data_hard_start_xmit(skb
, ieee
->dev
,
2581 if (!ieee
->queue_stop
&& ieee
->tx_pending
.txb
)
2582 rtllib_resume_tx(ieee
);
2584 if (!ieee
->queue_stop
&& netif_queue_stopped(ieee
->dev
)) {
2585 ieee
->softmac_stats
.swtxawake
++;
2586 netif_wake_queue(ieee
->dev
);
2590 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2594 void rtllib_stop_queue(struct rtllib_device
*ieee
)
2597 if (!netif_queue_stopped(ieee
->dev
)) {
2598 netif_stop_queue(ieee
->dev
);
2599 ieee
->softmac_stats
.swtxstop
++;
2601 ieee
->queue_stop
= 1;
2605 void rtllib_stop_all_queues(struct rtllib_device
*ieee
)
2608 for (i
= 0; i
< ieee
->dev
->num_tx_queues
; i
++)
2609 netdev_get_tx_queue(ieee
->dev
, i
)->trans_start
= jiffies
;
2611 netif_tx_stop_all_queues(ieee
->dev
);
2614 void rtllib_wake_all_queues(struct rtllib_device
*ieee
)
2616 netif_tx_wake_all_queues(ieee
->dev
);
2619 inline void rtllib_randomize_cell(struct rtllib_device
*ieee
)
2622 get_random_bytes(ieee
->current_network
.bssid
, ETH_ALEN
);
2624 /* an IBSS cell address must have the two less significant
2625 * bits of the first byte = 2
2627 ieee
->current_network
.bssid
[0] &= ~0x01;
2628 ieee
->current_network
.bssid
[0] |= 0x02;
2631 /* called in user context only */
2632 void rtllib_start_master_bss(struct rtllib_device
*ieee
)
2636 if (ieee
->current_network
.ssid_len
== 0) {
2637 strncpy(ieee
->current_network
.ssid
,
2638 RTLLIB_DEFAULT_TX_ESSID
,
2641 ieee
->current_network
.ssid_len
=
2642 strlen(RTLLIB_DEFAULT_TX_ESSID
);
2646 memcpy(ieee
->current_network
.bssid
, ieee
->dev
->dev_addr
, ETH_ALEN
);
2648 ieee
->set_chan(ieee
->dev
, ieee
->current_network
.channel
);
2649 ieee
->state
= RTLLIB_LINKED
;
2650 ieee
->link_change(ieee
->dev
);
2651 notify_wx_assoc_event(ieee
);
2653 if (ieee
->data_hard_resume
)
2654 ieee
->data_hard_resume(ieee
->dev
);
2656 netif_carrier_on(ieee
->dev
);
2659 static void rtllib_start_monitor_mode(struct rtllib_device
*ieee
)
2661 /* reset hardware status */
2663 if (ieee
->data_hard_resume
)
2664 ieee
->data_hard_resume(ieee
->dev
);
2666 netif_carrier_on(ieee
->dev
);
2670 static void rtllib_start_ibss_wq(void *data
)
2672 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
2673 struct rtllib_device
, start_ibss_wq
);
2674 /* iwconfig mode ad-hoc will schedule this and return
2675 * on the other hand this will block further iwconfig SET
2676 * operations because of the wx_sem hold.
2677 * Anyway some most set operations set a flag to speed-up
2678 * (abort) this wq (when syncro scanning) before sleeping
2681 if (!ieee
->proto_started
) {
2682 printk(KERN_INFO
"==========oh driver down return\n");
2685 down(&ieee
->wx_sem
);
2687 if (ieee
->current_network
.ssid_len
== 0) {
2688 strcpy(ieee
->current_network
.ssid
, RTLLIB_DEFAULT_TX_ESSID
);
2689 ieee
->current_network
.ssid_len
= strlen(RTLLIB_DEFAULT_TX_ESSID
);
2693 ieee
->state
= RTLLIB_NOLINK
;
2694 ieee
->mode
= IEEE_G
;
2695 /* check if we have this cell in our network list */
2696 rtllib_softmac_check_all_nets(ieee
);
2699 /* if not then the state is not linked. Maybe the user switched to
2700 * ad-hoc mode just after being in monitor mode, or just after
2701 * being very few time in managed mode (so the card have had no
2702 * time to scan all the chans..) or we have just run up the iface
2703 * after setting ad-hoc mode. So we have to give another try..
2704 * Here, in ibss mode, should be safe to do this without extra care
2705 * (in bss mode we had to make sure no-one tried to associate when
2706 * we had just checked the ieee->state and we was going to start the
2707 * scan) because in ibss mode the rtllib_new_net function, when
2708 * finds a good net, just set the ieee->state to RTLLIB_LINKED,
2709 * so, at worst, we waste a bit of time to initiate an unneeded syncro
2710 * scan, that will stop at the first round because it sees the state
2713 if (ieee
->state
== RTLLIB_NOLINK
)
2714 rtllib_start_scan_syncro(ieee
, 0);
2716 /* the network definitively is not here.. create a new cell */
2717 if (ieee
->state
== RTLLIB_NOLINK
) {
2718 printk(KERN_INFO
"creating new IBSS cell\n");
2719 ieee
->current_network
.channel
= ieee
->IbssStartChnl
;
2721 rtllib_randomize_cell(ieee
);
2723 if (ieee
->modulation
& RTLLIB_CCK_MODULATION
) {
2725 ieee
->current_network
.rates_len
= 4;
2727 ieee
->current_network
.rates
[0] =
2728 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_1MB
;
2729 ieee
->current_network
.rates
[1] =
2730 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_2MB
;
2731 ieee
->current_network
.rates
[2] =
2732 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_5MB
;
2733 ieee
->current_network
.rates
[3] =
2734 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_11MB
;
2737 ieee
->current_network
.rates_len
= 0;
2739 if (ieee
->modulation
& RTLLIB_OFDM_MODULATION
) {
2740 ieee
->current_network
.rates_ex_len
= 8;
2742 ieee
->current_network
.rates_ex
[0] =
2743 RTLLIB_OFDM_RATE_6MB
;
2744 ieee
->current_network
.rates_ex
[1] =
2745 RTLLIB_OFDM_RATE_9MB
;
2746 ieee
->current_network
.rates_ex
[2] =
2747 RTLLIB_OFDM_RATE_12MB
;
2748 ieee
->current_network
.rates_ex
[3] =
2749 RTLLIB_OFDM_RATE_18MB
;
2750 ieee
->current_network
.rates_ex
[4] =
2751 RTLLIB_OFDM_RATE_24MB
;
2752 ieee
->current_network
.rates_ex
[5] =
2753 RTLLIB_OFDM_RATE_36MB
;
2754 ieee
->current_network
.rates_ex
[6] =
2755 RTLLIB_OFDM_RATE_48MB
;
2756 ieee
->current_network
.rates_ex
[7] =
2757 RTLLIB_OFDM_RATE_54MB
;
2761 ieee
->current_network
.rates_ex_len
= 0;
2765 ieee
->current_network
.qos_data
.supported
= 0;
2766 ieee
->SetWirelessMode(ieee
->dev
, IEEE_G
);
2767 ieee
->current_network
.mode
= ieee
->mode
;
2768 ieee
->current_network
.atim_window
= 0;
2769 ieee
->current_network
.capability
= WLAN_CAPABILITY_IBSS
;
2772 printk(KERN_INFO
"%s(): ieee->mode = %d\n", __func__
, ieee
->mode
);
2773 if ((ieee
->mode
== IEEE_N_24G
) || (ieee
->mode
== IEEE_N_5G
))
2774 HTUseDefaultSetting(ieee
);
2776 ieee
->pHTInfo
->bCurrentHTSupport
= false;
2778 ieee
->SetHwRegHandler(ieee
->dev
, HW_VAR_MEDIA_STATUS
,
2779 (u8
*)(&ieee
->state
));
2781 ieee
->state
= RTLLIB_LINKED
;
2782 ieee
->link_change(ieee
->dev
);
2784 HTSetConnectBwMode(ieee
, HT_CHANNEL_WIDTH_20
, HT_EXTCHNL_OFFSET_NO_EXT
);
2785 if (ieee
->LedControlHandler
!= NULL
)
2786 ieee
->LedControlHandler(ieee
->dev
, LED_CTL_LINK
);
2788 rtllib_start_send_beacons(ieee
);
2790 notify_wx_assoc_event(ieee
);
2792 if (ieee
->data_hard_resume
)
2793 ieee
->data_hard_resume(ieee
->dev
);
2795 netif_carrier_on(ieee
->dev
);
2800 inline void rtllib_start_ibss(struct rtllib_device
*ieee
)
2802 queue_delayed_work_rsl(ieee
->wq
, &ieee
->start_ibss_wq
, MSECS(150));
2805 /* this is called only in user context, with wx_sem held */
2806 void rtllib_start_bss(struct rtllib_device
*ieee
)
2808 unsigned long flags
;
2809 if (IS_DOT11D_ENABLE(ieee
) && !IS_COUNTRY_IE_VALID(ieee
)) {
2810 if (!ieee
->bGlobalDomain
)
2813 /* check if we have already found the net we
2814 * are interested in (if any).
2815 * if not (we are disassociated and we are not
2816 * in associating / authenticating phase) start the background scanning.
2818 rtllib_softmac_check_all_nets(ieee
);
2820 /* ensure no-one start an associating process (thus setting
2821 * the ieee->state to rtllib_ASSOCIATING) while we
2822 * have just checked it and we are going to enable scan.
2823 * The rtllib_new_net function is always called with
2824 * lock held (from both rtllib_softmac_check_all_nets and
2825 * the rx path), so we cannot be in the middle of such function
2827 spin_lock_irqsave(&ieee
->lock
, flags
);
2829 if (ieee
->state
== RTLLIB_NOLINK
)
2830 rtllib_start_scan(ieee
);
2831 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2834 static void rtllib_link_change_wq(void *data
)
2836 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
2837 struct rtllib_device
, link_change_wq
);
2838 ieee
->link_change(ieee
->dev
);
2840 /* called only in userspace context */
2841 void rtllib_disassociate(struct rtllib_device
*ieee
)
2843 netif_carrier_off(ieee
->dev
);
2844 if (ieee
->softmac_features
& IEEE_SOFTMAC_TX_QUEUE
)
2845 rtllib_reset_queue(ieee
);
2847 if (ieee
->data_hard_stop
)
2848 ieee
->data_hard_stop(ieee
->dev
);
2849 if (IS_DOT11D_ENABLE(ieee
))
2851 ieee
->state
= RTLLIB_NOLINK
;
2852 ieee
->is_set_key
= false;
2855 queue_delayed_work_rsl(ieee
->wq
, &ieee
->link_change_wq
, 0);
2857 notify_wx_assoc_event(ieee
);
2860 static void rtllib_associate_retry_wq(void *data
)
2862 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
2863 struct rtllib_device
, associate_retry_wq
);
2864 unsigned long flags
;
2866 down(&ieee
->wx_sem
);
2867 if (!ieee
->proto_started
)
2870 if (ieee
->state
!= RTLLIB_ASSOCIATING_RETRY
)
2873 /* until we do not set the state to RTLLIB_NOLINK
2874 * there are no possibility to have someone else trying
2875 * to start an association procedure (we get here with
2876 * ieee->state = RTLLIB_ASSOCIATING).
2877 * When we set the state to RTLLIB_NOLINK it is possible
2878 * that the RX path run an attempt to associate, but
2879 * both rtllib_softmac_check_all_nets and the
2880 * RX path works with ieee->lock held so there are no
2881 * problems. If we are still disassociated then start a scan.
2882 * the lock here is necessary to ensure no one try to start
2883 * an association procedure when we have just checked the
2884 * state and we are going to start the scan.
2886 ieee
->beinretry
= true;
2887 ieee
->state
= RTLLIB_NOLINK
;
2889 rtllib_softmac_check_all_nets(ieee
);
2891 spin_lock_irqsave(&ieee
->lock
, flags
);
2893 if (ieee
->state
== RTLLIB_NOLINK
)
2894 rtllib_start_scan(ieee
);
2895 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2897 ieee
->beinretry
= false;
2902 struct sk_buff
*rtllib_get_beacon_(struct rtllib_device
*ieee
)
2904 u8 broadcast_addr
[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2906 struct sk_buff
*skb
;
2907 struct rtllib_probe_response
*b
;
2908 skb
= rtllib_probe_resp(ieee
, broadcast_addr
);
2913 b
= (struct rtllib_probe_response
*) skb
->data
;
2914 b
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_BEACON
);
2920 struct sk_buff
*rtllib_get_beacon(struct rtllib_device
*ieee
)
2922 struct sk_buff
*skb
;
2923 struct rtllib_probe_response
*b
;
2925 skb
= rtllib_get_beacon_(ieee
);
2929 b
= (struct rtllib_probe_response
*) skb
->data
;
2930 b
->header
.seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
2932 if (ieee
->seq_ctrl
[0] == 0xFFF)
2933 ieee
->seq_ctrl
[0] = 0;
2935 ieee
->seq_ctrl
[0]++;
2939 EXPORT_SYMBOL(rtllib_get_beacon
);
2941 void rtllib_softmac_stop_protocol(struct rtllib_device
*ieee
, u8 mesh_flag
,
2944 rtllib_stop_scan_syncro(ieee
);
2945 down(&ieee
->wx_sem
);
2946 rtllib_stop_protocol(ieee
, shutdown
);
2949 EXPORT_SYMBOL(rtllib_softmac_stop_protocol
);
2952 void rtllib_stop_protocol(struct rtllib_device
*ieee
, u8 shutdown
)
2954 if (!ieee
->proto_started
)
2958 ieee
->proto_started
= 0;
2959 ieee
->proto_stoppping
= 1;
2960 if (ieee
->rtllib_ips_leave
!= NULL
)
2961 ieee
->rtllib_ips_leave(ieee
->dev
);
2964 rtllib_stop_send_beacons(ieee
);
2965 del_timer_sync(&ieee
->associate_timer
);
2966 cancel_delayed_work(&ieee
->associate_retry_wq
);
2967 cancel_delayed_work(&ieee
->start_ibss_wq
);
2968 cancel_delayed_work(&ieee
->link_change_wq
);
2969 rtllib_stop_scan(ieee
);
2971 if (ieee
->state
<= RTLLIB_ASSOCIATING_AUTHENTICATED
)
2972 ieee
->state
= RTLLIB_NOLINK
;
2974 if (ieee
->state
== RTLLIB_LINKED
) {
2975 if (ieee
->iw_mode
== IW_MODE_INFRA
)
2976 SendDisassociation(ieee
, 1, deauth_lv_ss
);
2977 rtllib_disassociate(ieee
);
2982 ieee
->proto_stoppping
= 0;
2984 kfree(ieee
->assocreq_ies
);
2985 ieee
->assocreq_ies
= NULL
;
2986 ieee
->assocreq_ies_len
= 0;
2987 kfree(ieee
->assocresp_ies
);
2988 ieee
->assocresp_ies
= NULL
;
2989 ieee
->assocresp_ies_len
= 0;
2992 void rtllib_softmac_start_protocol(struct rtllib_device
*ieee
, u8 mesh_flag
)
2994 down(&ieee
->wx_sem
);
2995 rtllib_start_protocol(ieee
);
2998 EXPORT_SYMBOL(rtllib_softmac_start_protocol
);
3000 void rtllib_start_protocol(struct rtllib_device
*ieee
)
3005 rtllib_update_active_chan_map(ieee
);
3007 if (ieee
->proto_started
)
3010 ieee
->proto_started
= 1;
3012 if (ieee
->current_network
.channel
== 0) {
3015 if (ch
> MAX_CHANNEL_NUMBER
)
3016 return; /* no channel found */
3017 } while (!ieee
->active_channel_map
[ch
]);
3018 ieee
->current_network
.channel
= ch
;
3021 if (ieee
->current_network
.beacon_interval
== 0)
3022 ieee
->current_network
.beacon_interval
= 100;
3024 for (i
= 0; i
< 17; i
++) {
3025 ieee
->last_rxseq_num
[i
] = -1;
3026 ieee
->last_rxfrag_num
[i
] = -1;
3027 ieee
->last_packet_time
[i
] = 0;
3030 if (ieee
->UpdateBeaconInterruptHandler
)
3031 ieee
->UpdateBeaconInterruptHandler(ieee
->dev
, false);
3034 /* if the user set the MAC of the ad-hoc cell and then
3035 * switch to managed mode, shall we make sure that association
3036 * attempts does not fail just because the user provide the essid
3037 * and the nic is still checking for the AP MAC ??
3039 if (ieee
->iw_mode
== IW_MODE_INFRA
) {
3040 rtllib_start_bss(ieee
);
3041 } else if (ieee
->iw_mode
== IW_MODE_ADHOC
) {
3042 if (ieee
->UpdateBeaconInterruptHandler
)
3043 ieee
->UpdateBeaconInterruptHandler(ieee
->dev
, true);
3045 rtllib_start_ibss(ieee
);
3047 } else if (ieee
->iw_mode
== IW_MODE_MASTER
) {
3048 rtllib_start_master_bss(ieee
);
3049 } else if (ieee
->iw_mode
== IW_MODE_MONITOR
) {
3050 rtllib_start_monitor_mode(ieee
);
3054 void rtllib_softmac_init(struct rtllib_device
*ieee
)
3057 memset(&ieee
->current_network
, 0, sizeof(struct rtllib_network
));
3059 ieee
->state
= RTLLIB_NOLINK
;
3060 for (i
= 0; i
< 5; i
++)
3061 ieee
->seq_ctrl
[i
] = 0;
3062 ieee
->pDot11dInfo
= kzalloc(sizeof(struct rt_dot11d_info
), GFP_ATOMIC
);
3063 if (!ieee
->pDot11dInfo
)
3064 RTLLIB_DEBUG(RTLLIB_DL_ERR
, "can't alloc memory for DOT11D\n");
3065 ieee
->LinkDetectInfo
.SlotIndex
= 0;
3066 ieee
->LinkDetectInfo
.SlotNum
= 2;
3067 ieee
->LinkDetectInfo
.NumRecvBcnInPeriod
= 0;
3068 ieee
->LinkDetectInfo
.NumRecvDataInPeriod
= 0;
3069 ieee
->LinkDetectInfo
.NumTxOkInPeriod
= 0;
3070 ieee
->LinkDetectInfo
.NumRxOkInPeriod
= 0;
3071 ieee
->LinkDetectInfo
.NumRxUnicastOkInPeriod
= 0;
3072 ieee
->bIsAggregateFrame
= false;
3074 ieee
->queue_stop
= 0;
3075 ieee
->scanning_continue
= 0;
3076 ieee
->softmac_features
= 0;
3079 ieee
->proto_started
= 0;
3080 ieee
->proto_stoppping
= 0;
3081 ieee
->basic_rate
= RTLLIB_DEFAULT_BASIC_RATE
;
3083 ieee
->ps
= RTLLIB_PS_DISABLED
;
3084 ieee
->sta_sleep
= LPS_IS_WAKE
;
3086 ieee
->Regdot11HTOperationalRateSet
[0] = 0xff;
3087 ieee
->Regdot11HTOperationalRateSet
[1] = 0xff;
3088 ieee
->Regdot11HTOperationalRateSet
[4] = 0x01;
3090 ieee
->Regdot11TxHTOperationalRateSet
[0] = 0xff;
3091 ieee
->Regdot11TxHTOperationalRateSet
[1] = 0xff;
3092 ieee
->Regdot11TxHTOperationalRateSet
[4] = 0x01;
3094 ieee
->FirstIe_InScan
= false;
3095 ieee
->actscanning
= false;
3096 ieee
->beinretry
= false;
3097 ieee
->is_set_key
= false;
3098 init_mgmt_queue(ieee
);
3100 ieee
->sta_edca_param
[0] = 0x0000A403;
3101 ieee
->sta_edca_param
[1] = 0x0000A427;
3102 ieee
->sta_edca_param
[2] = 0x005E4342;
3103 ieee
->sta_edca_param
[3] = 0x002F3262;
3104 ieee
->aggregation
= true;
3105 ieee
->enable_rx_imm_BA
= 1;
3106 ieee
->tx_pending
.txb
= NULL
;
3108 _setup_timer(&ieee
->associate_timer
,
3109 rtllib_associate_abort_cb
,
3110 (unsigned long) ieee
);
3112 _setup_timer(&ieee
->beacon_timer
,
3113 rtllib_send_beacon_cb
,
3114 (unsigned long) ieee
);
3117 ieee
->wq
= create_workqueue(DRV_NAME
);
3119 INIT_DELAYED_WORK_RSL(&ieee
->link_change_wq
,
3120 (void *)rtllib_link_change_wq
, ieee
);
3121 INIT_DELAYED_WORK_RSL(&ieee
->start_ibss_wq
,
3122 (void *)rtllib_start_ibss_wq
, ieee
);
3123 INIT_WORK_RSL(&ieee
->associate_complete_wq
,
3124 (void *)rtllib_associate_complete_wq
, ieee
);
3125 INIT_DELAYED_WORK_RSL(&ieee
->associate_procedure_wq
,
3126 (void *)rtllib_associate_procedure_wq
, ieee
);
3127 INIT_DELAYED_WORK_RSL(&ieee
->softmac_scan_wq
,
3128 (void *)rtllib_softmac_scan_wq
, ieee
);
3129 INIT_DELAYED_WORK_RSL(&ieee
->softmac_hint11d_wq
,
3130 (void *)rtllib_softmac_hint11d_wq
, ieee
);
3131 INIT_DELAYED_WORK_RSL(&ieee
->associate_retry_wq
,
3132 (void *)rtllib_associate_retry_wq
, ieee
);
3133 INIT_WORK_RSL(&ieee
->wx_sync_scan_wq
, (void *)rtllib_wx_sync_scan_wq
,
3136 sema_init(&ieee
->wx_sem
, 1);
3137 sema_init(&ieee
->scan_sem
, 1);
3138 sema_init(&ieee
->ips_sem
, 1);
3140 spin_lock_init(&ieee
->mgmt_tx_lock
);
3141 spin_lock_init(&ieee
->beacon_lock
);
3143 tasklet_init(&ieee
->ps_task
,
3144 (void(*)(unsigned long)) rtllib_sta_ps
,
3145 (unsigned long)ieee
);
3149 void rtllib_softmac_free(struct rtllib_device
*ieee
)
3151 down(&ieee
->wx_sem
);
3152 kfree(ieee
->pDot11dInfo
);
3153 ieee
->pDot11dInfo
= NULL
;
3154 del_timer_sync(&ieee
->associate_timer
);
3156 cancel_delayed_work(&ieee
->associate_retry_wq
);
3157 destroy_workqueue(ieee
->wq
);
3161 /********************************************************
3162 * Start of WPA code. *
3163 * this is stolen from the ipw2200 driver *
3164 ********************************************************/
3167 static int rtllib_wpa_enable(struct rtllib_device
*ieee
, int value
)
3169 /* This is called when wpa_supplicant loads and closes the driver
3171 printk(KERN_INFO
"%s WPA\n", value
? "enabling" : "disabling");
3172 ieee
->wpa_enabled
= value
;
3173 memset(ieee
->ap_mac_addr
, 0, 6);
3178 static void rtllib_wpa_assoc_frame(struct rtllib_device
*ieee
, char *wpa_ie
,
3181 /* make sure WPA is enabled */
3182 rtllib_wpa_enable(ieee
, 1);
3184 rtllib_disassociate(ieee
);
3188 static int rtllib_wpa_mlme(struct rtllib_device
*ieee
, int command
, int reason
)
3194 case IEEE_MLME_STA_DEAUTH
:
3197 case IEEE_MLME_STA_DISASSOC
:
3198 rtllib_disassociate(ieee
);
3202 printk(KERN_INFO
"Unknown MLME request: %d\n", command
);
3210 static int rtllib_wpa_set_wpa_ie(struct rtllib_device
*ieee
,
3211 struct ieee_param
*param
, int plen
)
3215 if (param
->u
.wpa_ie
.len
> MAX_WPA_IE_LEN
||
3216 (param
->u
.wpa_ie
.len
&& param
->u
.wpa_ie
.data
== NULL
))
3219 if (param
->u
.wpa_ie
.len
) {
3220 buf
= kmemdup(param
->u
.wpa_ie
.data
, param
->u
.wpa_ie
.len
,
3225 kfree(ieee
->wpa_ie
);
3227 ieee
->wpa_ie_len
= param
->u
.wpa_ie
.len
;
3229 kfree(ieee
->wpa_ie
);
3230 ieee
->wpa_ie
= NULL
;
3231 ieee
->wpa_ie_len
= 0;
3234 rtllib_wpa_assoc_frame(ieee
, ieee
->wpa_ie
, ieee
->wpa_ie_len
);
3238 #define AUTH_ALG_OPEN_SYSTEM 0x1
3239 #define AUTH_ALG_SHARED_KEY 0x2
3240 #define AUTH_ALG_LEAP 0x4
3241 static int rtllib_wpa_set_auth_algs(struct rtllib_device
*ieee
, int value
)
3244 struct rtllib_security sec
= {
3245 .flags
= SEC_AUTH_MODE
,
3249 if (value
& AUTH_ALG_SHARED_KEY
) {
3250 sec
.auth_mode
= WLAN_AUTH_SHARED_KEY
;
3252 ieee
->auth_mode
= 1;
3253 } else if (value
& AUTH_ALG_OPEN_SYSTEM
) {
3254 sec
.auth_mode
= WLAN_AUTH_OPEN
;
3256 ieee
->auth_mode
= 0;
3257 } else if (value
& AUTH_ALG_LEAP
) {
3258 sec
.auth_mode
= WLAN_AUTH_LEAP
>> 6;
3260 ieee
->auth_mode
= 2;
3264 if (ieee
->set_security
)
3265 ieee
->set_security(ieee
->dev
, &sec
);
3270 static int rtllib_wpa_set_param(struct rtllib_device
*ieee
, u8 name
, u32 value
)
3273 unsigned long flags
;
3276 case IEEE_PARAM_WPA_ENABLED
:
3277 ret
= rtllib_wpa_enable(ieee
, value
);
3280 case IEEE_PARAM_TKIP_COUNTERMEASURES
:
3281 ieee
->tkip_countermeasures
= value
;
3284 case IEEE_PARAM_DROP_UNENCRYPTED
:
3288 * wpa_supplicant calls set_wpa_enabled when the driver
3289 * is loaded and unloaded, regardless of if WPA is being
3290 * used. No other calls are made which can be used to
3291 * determine if encryption will be used or not prior to
3292 * association being expected. If encryption is not being
3293 * used, drop_unencrypted is set to false, else true -- we
3294 * can use this to determine if the CAP_PRIVACY_ON bit should
3297 struct rtllib_security sec
= {
3298 .flags
= SEC_ENABLED
,
3301 ieee
->drop_unencrypted
= value
;
3302 /* We only change SEC_LEVEL for open mode. Others
3303 * are set by ipw_wpa_set_encryption.
3306 sec
.flags
|= SEC_LEVEL
;
3307 sec
.level
= SEC_LEVEL_0
;
3309 sec
.flags
|= SEC_LEVEL
;
3310 sec
.level
= SEC_LEVEL_1
;
3312 if (ieee
->set_security
)
3313 ieee
->set_security(ieee
->dev
, &sec
);
3317 case IEEE_PARAM_PRIVACY_INVOKED
:
3318 ieee
->privacy_invoked
= value
;
3321 case IEEE_PARAM_AUTH_ALGS
:
3322 ret
= rtllib_wpa_set_auth_algs(ieee
, value
);
3325 case IEEE_PARAM_IEEE_802_1X
:
3326 ieee
->ieee802_1x
= value
;
3328 case IEEE_PARAM_WPAX_SELECT
:
3329 spin_lock_irqsave(&ieee
->wpax_suitlist_lock
, flags
);
3330 spin_unlock_irqrestore(&ieee
->wpax_suitlist_lock
, flags
);
3334 printk(KERN_INFO
"Unknown WPA param: %d\n", name
);
3341 /* implementation borrowed from hostap driver */
3342 static int rtllib_wpa_set_encryption(struct rtllib_device
*ieee
,
3343 struct ieee_param
*param
, int param_len
,
3347 struct lib80211_crypto_ops
*ops
;
3348 struct lib80211_crypt_data
**crypt
;
3350 struct rtllib_security sec
= {
3354 param
->u
.crypt
.err
= 0;
3355 param
->u
.crypt
.alg
[IEEE_CRYPT_ALG_NAME_LEN
- 1] = '\0';
3358 (int) ((char *) param
->u
.crypt
.key
- (char *) param
) +
3359 param
->u
.crypt
.key_len
) {
3360 printk(KERN_INFO
"Len mismatch %d, %d\n", param_len
,
3361 param
->u
.crypt
.key_len
);
3364 if (param
->sta_addr
[0] == 0xff && param
->sta_addr
[1] == 0xff &&
3365 param
->sta_addr
[2] == 0xff && param
->sta_addr
[3] == 0xff &&
3366 param
->sta_addr
[4] == 0xff && param
->sta_addr
[5] == 0xff) {
3367 if (param
->u
.crypt
.idx
>= NUM_WEP_KEYS
)
3369 crypt
= &ieee
->crypt_info
.crypt
[param
->u
.crypt
.idx
];
3374 if (strcmp(param
->u
.crypt
.alg
, "none") == 0) {
3377 sec
.level
= SEC_LEVEL_0
;
3378 sec
.flags
|= SEC_ENABLED
| SEC_LEVEL
;
3379 lib80211_crypt_delayed_deinit(&ieee
->crypt_info
, crypt
);
3384 sec
.flags
|= SEC_ENABLED
;
3386 /* IPW HW cannot build TKIP MIC, host decryption still needed. */
3387 if (!(ieee
->host_encrypt
|| ieee
->host_decrypt
) &&
3388 strcmp(param
->u
.crypt
.alg
, "R-TKIP"))
3389 goto skip_host_crypt
;
3391 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3392 if (ops
== NULL
&& strcmp(param
->u
.crypt
.alg
, "R-WEP") == 0) {
3393 request_module("rtllib_crypt_wep");
3394 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3395 } else if (ops
== NULL
&& strcmp(param
->u
.crypt
.alg
, "R-TKIP") == 0) {
3396 request_module("rtllib_crypt_tkip");
3397 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3398 } else if (ops
== NULL
&& strcmp(param
->u
.crypt
.alg
, "R-CCMP") == 0) {
3399 request_module("rtllib_crypt_ccmp");
3400 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3403 printk(KERN_INFO
"unknown crypto alg '%s'\n",
3404 param
->u
.crypt
.alg
);
3405 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_UNKNOWN_ALG
;
3409 if (*crypt
== NULL
|| (*crypt
)->ops
!= ops
) {
3410 struct lib80211_crypt_data
*new_crypt
;
3412 lib80211_crypt_delayed_deinit(&ieee
->crypt_info
, crypt
);
3414 new_crypt
= (struct lib80211_crypt_data
*)
3415 kmalloc(sizeof(*new_crypt
), GFP_KERNEL
);
3416 if (new_crypt
== NULL
) {
3420 memset(new_crypt
, 0, sizeof(struct lib80211_crypt_data
));
3421 new_crypt
->ops
= ops
;
3424 new_crypt
->ops
->init(param
->u
.crypt
.idx
);
3426 if (new_crypt
->priv
== NULL
) {
3428 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_CRYPT_INIT_FAILED
;
3436 if (param
->u
.crypt
.key_len
> 0 && (*crypt
)->ops
->set_key
&&
3437 (*crypt
)->ops
->set_key(param
->u
.crypt
.key
,
3438 param
->u
.crypt
.key_len
, param
->u
.crypt
.seq
,
3439 (*crypt
)->priv
) < 0) {
3440 printk(KERN_INFO
"key setting failed\n");
3441 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_KEY_SET_FAILED
;
3447 if (param
->u
.crypt
.set_tx
) {
3448 ieee
->crypt_info
.tx_keyidx
= param
->u
.crypt
.idx
;
3449 sec
.active_key
= param
->u
.crypt
.idx
;
3450 sec
.flags
|= SEC_ACTIVE_KEY
;
3452 sec
.flags
&= ~SEC_ACTIVE_KEY
;
3454 if (param
->u
.crypt
.alg
!= NULL
) {
3455 memcpy(sec
.keys
[param
->u
.crypt
.idx
],
3457 param
->u
.crypt
.key_len
);
3458 sec
.key_sizes
[param
->u
.crypt
.idx
] = param
->u
.crypt
.key_len
;
3459 sec
.flags
|= (1 << param
->u
.crypt
.idx
);
3461 if (strcmp(param
->u
.crypt
.alg
, "R-WEP") == 0) {
3462 sec
.flags
|= SEC_LEVEL
;
3463 sec
.level
= SEC_LEVEL_1
;
3464 } else if (strcmp(param
->u
.crypt
.alg
, "R-TKIP") == 0) {
3465 sec
.flags
|= SEC_LEVEL
;
3466 sec
.level
= SEC_LEVEL_2
;
3467 } else if (strcmp(param
->u
.crypt
.alg
, "R-CCMP") == 0) {
3468 sec
.flags
|= SEC_LEVEL
;
3469 sec
.level
= SEC_LEVEL_3
;
3473 if (ieee
->set_security
)
3474 ieee
->set_security(ieee
->dev
, &sec
);
3476 /* Do not reset port if card is in Managed mode since resetting will
3477 * generate new IEEE 802.11 authentication which may end up in looping
3478 * with IEEE 802.1X. If your hardware requires a reset after WEP
3479 * configuration (for example... Prism2), implement the reset_port in
3480 * the callbacks structures used to initialize the 802.11 stack. */
3481 if (ieee
->reset_on_keychange
&&
3482 ieee
->iw_mode
!= IW_MODE_INFRA
&&
3484 ieee
->reset_port(ieee
->dev
)) {
3485 printk(KERN_INFO
"reset_port failed\n");
3486 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_CARD_CONF_FAILED
;
3493 inline struct sk_buff
*rtllib_disauth_skb(struct rtllib_network
*beacon
,
3494 struct rtllib_device
*ieee
, u16 asRsn
)
3496 struct sk_buff
*skb
;
3497 struct rtllib_disauth
*disauth
;
3498 int len
= sizeof(struct rtllib_disauth
) + ieee
->tx_headroom
;
3500 skb
= dev_alloc_skb(len
);
3504 skb_reserve(skb
, ieee
->tx_headroom
);
3506 disauth
= (struct rtllib_disauth
*) skb_put(skb
,
3507 sizeof(struct rtllib_disauth
));
3508 disauth
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_DEAUTH
);
3509 disauth
->header
.duration_id
= 0;
3511 memcpy(disauth
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
3512 memcpy(disauth
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
3513 memcpy(disauth
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
3515 disauth
->reason
= cpu_to_le16(asRsn
);
3519 inline struct sk_buff
*rtllib_disassociate_skb(struct rtllib_network
*beacon
,
3520 struct rtllib_device
*ieee
, u16 asRsn
)
3522 struct sk_buff
*skb
;
3523 struct rtllib_disassoc
*disass
;
3524 int len
= sizeof(struct rtllib_disassoc
) + ieee
->tx_headroom
;
3525 skb
= dev_alloc_skb(len
);
3530 skb_reserve(skb
, ieee
->tx_headroom
);
3532 disass
= (struct rtllib_disassoc
*) skb_put(skb
,
3533 sizeof(struct rtllib_disassoc
));
3534 disass
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_DISASSOC
);
3535 disass
->header
.duration_id
= 0;
3537 memcpy(disass
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
3538 memcpy(disass
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
3539 memcpy(disass
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
3541 disass
->reason
= cpu_to_le16(asRsn
);
3545 void SendDisassociation(struct rtllib_device
*ieee
, bool deauth
, u16 asRsn
)
3547 struct rtllib_network
*beacon
= &ieee
->current_network
;
3548 struct sk_buff
*skb
;
3551 skb
= rtllib_disauth_skb(beacon
, ieee
, asRsn
);
3553 skb
= rtllib_disassociate_skb(beacon
, ieee
, asRsn
);
3556 softmac_mgmt_xmit(skb
, ieee
);
3559 u8
rtllib_ap_sec_type(struct rtllib_device
*ieee
)
3561 static u8 ccmp_ie
[4] = {0x00, 0x50, 0xf2, 0x04};
3562 static u8 ccmp_rsn_ie
[4] = {0x00, 0x0f, 0xac, 0x04};
3563 int wpa_ie_len
= ieee
->wpa_ie_len
;
3564 struct lib80211_crypt_data
*crypt
;
3567 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
3568 encrypt
= (ieee
->current_network
.capability
& WLAN_CAPABILITY_PRIVACY
)
3569 || (ieee
->host_encrypt
&& crypt
&& crypt
->ops
&&
3570 (0 == strcmp(crypt
->ops
->name
, "R-WEP")));
3573 if (encrypt
&& (wpa_ie_len
== 0)) {
3575 } else if ((wpa_ie_len
!= 0)) {
3576 if (((ieee
->wpa_ie
[0] == 0xdd) &&
3577 (!memcmp(&(ieee
->wpa_ie
[14]), ccmp_ie
, 4))) ||
3578 ((ieee
->wpa_ie
[0] == 0x30) &&
3579 (!memcmp(&ieee
->wpa_ie
[10], ccmp_rsn_ie
, 4))))
3580 return SEC_ALG_CCMP
;
3582 return SEC_ALG_TKIP
;
3584 return SEC_ALG_NONE
;
3588 int rtllib_wpa_supplicant_ioctl(struct rtllib_device
*ieee
, struct iw_point
*p
,
3591 struct ieee_param
*param
;
3594 down(&ieee
->wx_sem
);
3596 if (p
->length
< sizeof(struct ieee_param
) || !p
->pointer
) {
3601 param
= kmalloc(p
->length
, GFP_KERNEL
);
3602 if (param
== NULL
) {
3606 if (copy_from_user(param
, p
->pointer
, p
->length
)) {
3612 switch (param
->cmd
) {
3613 case IEEE_CMD_SET_WPA_PARAM
:
3614 ret
= rtllib_wpa_set_param(ieee
, param
->u
.wpa_param
.name
,
3615 param
->u
.wpa_param
.value
);
3618 case IEEE_CMD_SET_WPA_IE
:
3619 ret
= rtllib_wpa_set_wpa_ie(ieee
, param
, p
->length
);
3622 case IEEE_CMD_SET_ENCRYPTION
:
3623 ret
= rtllib_wpa_set_encryption(ieee
, param
, p
->length
, 0);
3627 ret
= rtllib_wpa_mlme(ieee
, param
->u
.mlme
.command
,
3628 param
->u
.mlme
.reason_code
);
3632 printk(KERN_INFO
"Unknown WPA supplicant request: %d\n",
3638 if (ret
== 0 && copy_to_user(p
->pointer
, param
, p
->length
))
3647 EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl
);
3649 void rtllib_MgntDisconnectIBSS(struct rtllib_device
*rtllib
)
3653 bool bFilterOutNonAssociatedBSSID
= false;
3655 rtllib
->state
= RTLLIB_NOLINK
;
3657 for (i
= 0; i
< 6; i
++)
3658 rtllib
->current_network
.bssid
[i
] = 0x55;
3660 rtllib
->OpMode
= RT_OP_MODE_NO_LINK
;
3661 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_BSSID
,
3662 rtllib
->current_network
.bssid
);
3663 OpMode
= RT_OP_MODE_NO_LINK
;
3664 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_MEDIA_STATUS
, &OpMode
);
3665 rtllib_stop_send_beacons(rtllib
);
3667 bFilterOutNonAssociatedBSSID
= false;
3668 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_CECHK_BSSID
,
3669 (u8
*)(&bFilterOutNonAssociatedBSSID
));
3670 notify_wx_assoc_event(rtllib
);
3674 void rtllib_MlmeDisassociateRequest(struct rtllib_device
*rtllib
, u8
*asSta
,
3680 RemovePeerTS(rtllib
, asSta
);
3682 if (memcmp(rtllib
->current_network
.bssid
, asSta
, 6) == 0) {
3683 rtllib
->state
= RTLLIB_NOLINK
;
3685 for (i
= 0; i
< 6; i
++)
3686 rtllib
->current_network
.bssid
[i
] = 0x22;
3687 OpMode
= RT_OP_MODE_NO_LINK
;
3688 rtllib
->OpMode
= RT_OP_MODE_NO_LINK
;
3689 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_MEDIA_STATUS
,
3691 rtllib_disassociate(rtllib
);
3693 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_BSSID
,
3694 rtllib
->current_network
.bssid
);
3701 rtllib_MgntDisconnectAP(
3702 struct rtllib_device
*rtllib
,
3706 bool bFilterOutNonAssociatedBSSID
= false;
3708 bFilterOutNonAssociatedBSSID
= false;
3709 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_CECHK_BSSID
,
3710 (u8
*)(&bFilterOutNonAssociatedBSSID
));
3711 rtllib_MlmeDisassociateRequest(rtllib
, rtllib
->current_network
.bssid
,
3714 rtllib
->state
= RTLLIB_NOLINK
;
3717 bool rtllib_MgntDisconnect(struct rtllib_device
*rtllib
, u8 asRsn
)
3719 if (rtllib
->ps
!= RTLLIB_PS_DISABLED
)
3720 rtllib
->sta_wake_up(rtllib
->dev
);
3722 if (rtllib
->state
== RTLLIB_LINKED
) {
3723 if (rtllib
->iw_mode
== IW_MODE_ADHOC
)
3724 rtllib_MgntDisconnectIBSS(rtllib
);
3725 if (rtllib
->iw_mode
== IW_MODE_INFRA
)
3726 rtllib_MgntDisconnectAP(rtllib
, asRsn
);
3732 EXPORT_SYMBOL(rtllib_MgntDisconnect
);
3734 void notify_wx_assoc_event(struct rtllib_device
*ieee
)
3736 union iwreq_data wrqu
;
3738 if (ieee
->cannot_notify
)
3741 wrqu
.ap_addr
.sa_family
= ARPHRD_ETHER
;
3742 if (ieee
->state
== RTLLIB_LINKED
)
3743 memcpy(wrqu
.ap_addr
.sa_data
, ieee
->current_network
.bssid
,
3747 printk(KERN_INFO
"%s(): Tell user space disconnected\n",
3749 memset(wrqu
.ap_addr
.sa_data
, 0, ETH_ALEN
);
3751 wireless_send_event(ieee
->dev
, SIOCGIWAP
, &wrqu
, NULL
);
3753 EXPORT_SYMBOL(notify_wx_assoc_event
);