1 /* IEEE 802.11 SoftMAC layer
2 * Copyright (c) 2005 Andrea Merello <andrea.merello@gmail.com>
4 * Mostly extracted from the rtl8180-sa2400 driver for the
5 * in-kernel generic ieee802.11 stack.
7 * Few lines might be stolen from other part of the rtllib
8 * stack. Copyright who own it's copyright
10 * WPA code stolen from the ipw2200 driver.
11 * Copyright who own it's copyright.
13 * released under the GPL
19 #include <linux/random.h>
20 #include <linux/delay.h>
21 #include <linux/uaccess.h>
22 #include <linux/etherdevice.h>
25 short rtllib_is_54g(struct rtllib_network
*net
)
27 return (net
->rates_ex_len
> 0) || (net
->rates_len
> 4);
30 short rtllib_is_shortslot(const struct rtllib_network
*net
)
32 return net
->capability
& WLAN_CAPABILITY_SHORT_SLOT_TIME
;
35 /* returns the total length needed for placing the RATE MFIE
36 * tag and the EXTENDED RATE MFIE tag if needed.
37 * It encludes two bytes per tag for the tag itself and its len
39 static unsigned int rtllib_MFIE_rate_len(struct rtllib_device
*ieee
)
41 unsigned int rate_len
= 0;
43 if (ieee
->modulation
& RTLLIB_CCK_MODULATION
)
44 rate_len
= RTLLIB_CCK_RATE_LEN
+ 2;
46 if (ieee
->modulation
& RTLLIB_OFDM_MODULATION
)
48 rate_len
+= RTLLIB_OFDM_RATE_LEN
+ 2;
53 /* place the MFIE rate, tag to the memory (double) pointed.
54 * Then it updates the pointer so that
55 * it points after the new MFIE tag added.
57 static void rtllib_MFIE_Brate(struct rtllib_device
*ieee
, u8
**tag_p
)
61 if (ieee
->modulation
& RTLLIB_CCK_MODULATION
) {
62 *tag
++ = MFIE_TYPE_RATES
;
64 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_1MB
;
65 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_2MB
;
66 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_5MB
;
67 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_11MB
;
70 /* We may add an option for custom rates that specific HW
75 static void rtllib_MFIE_Grate(struct rtllib_device
*ieee
, u8
**tag_p
)
79 if (ieee
->modulation
& RTLLIB_OFDM_MODULATION
) {
80 *tag
++ = MFIE_TYPE_RATES_EX
;
82 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_6MB
;
83 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_9MB
;
84 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_12MB
;
85 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_18MB
;
86 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_24MB
;
87 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_36MB
;
88 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_48MB
;
89 *tag
++ = RTLLIB_BASIC_RATE_MASK
| RTLLIB_OFDM_RATE_54MB
;
91 /* We may add an option for custom rates that specific HW might
96 static void rtllib_WMM_Info(struct rtllib_device
*ieee
, u8
**tag_p
)
100 *tag
++ = MFIE_TYPE_GENERIC
;
112 void rtllib_TURBO_Info(struct rtllib_device
*ieee
, u8
**tag_p
)
116 *tag
++ = MFIE_TYPE_GENERIC
;
127 netdev_alert(ieee
->dev
, "This is enable turbo mode IE process\n");
130 static void enqueue_mgmt(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
134 nh
= (ieee
->mgmt_queue_head
+ 1) % MGMT_QUEUE_NUM
;
137 * if the queue is full but we have newer frames then
138 * just overwrites the oldest.
140 * if (nh == ieee->mgmt_queue_tail)
143 ieee
->mgmt_queue_head
= nh
;
144 ieee
->mgmt_queue_ring
[nh
] = skb
;
148 static struct sk_buff
*dequeue_mgmt(struct rtllib_device
*ieee
)
152 if (ieee
->mgmt_queue_tail
== ieee
->mgmt_queue_head
)
155 ret
= ieee
->mgmt_queue_ring
[ieee
->mgmt_queue_tail
];
157 ieee
->mgmt_queue_tail
=
158 (ieee
->mgmt_queue_tail
+1) % MGMT_QUEUE_NUM
;
163 static void init_mgmt_queue(struct rtllib_device
*ieee
)
165 ieee
->mgmt_queue_tail
= ieee
->mgmt_queue_head
= 0;
170 MgntQuery_TxRateExcludeCCKRates(struct rtllib_device
*ieee
)
177 for (i
= 0; i
< ieee
->current_network
.rates_len
; i
++) {
178 BasicRate
= ieee
->current_network
.rates
[i
]&0x7F;
179 if (!rtllib_is_cck_rate(BasicRate
)) {
180 if (QueryRate
== 0) {
181 QueryRate
= BasicRate
;
183 if (BasicRate
< QueryRate
)
184 QueryRate
= BasicRate
;
189 if (QueryRate
== 0) {
191 netdev_info(ieee
->dev
, "No BasicRate found!!\n");
196 static u8
MgntQuery_MgntFrameTxRate(struct rtllib_device
*ieee
)
198 struct rt_hi_throughput
*pHTInfo
= ieee
->pHTInfo
;
201 if (pHTInfo
->IOTAction
& HT_IOT_ACT_MGNT_USE_CCK_6M
)
204 rate
= ieee
->basic_rate
& 0x7f;
207 if (ieee
->mode
== IEEE_A
||
208 ieee
->mode
== IEEE_N_5G
||
209 (ieee
->mode
== IEEE_N_24G
&& !pHTInfo
->bCurSuppCCK
))
218 inline void softmac_mgmt_xmit(struct sk_buff
*skb
, struct rtllib_device
*ieee
)
221 short single
= ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
;
222 struct rtllib_hdr_3addr
*header
=
223 (struct rtllib_hdr_3addr
*) skb
->data
;
225 struct cb_desc
*tcb_desc
= (struct cb_desc
*)(skb
->cb
+ 8);
227 spin_lock_irqsave(&ieee
->lock
, flags
);
229 /* called with 2nd param 0, no mgmt lock required */
230 rtllib_sta_wakeup(ieee
, 0);
232 if (le16_to_cpu(header
->frame_ctl
) == RTLLIB_STYPE_BEACON
)
233 tcb_desc
->queue_index
= BEACON_QUEUE
;
235 tcb_desc
->queue_index
= MGNT_QUEUE
;
237 if (ieee
->disable_mgnt_queue
)
238 tcb_desc
->queue_index
= HIGH_QUEUE
;
240 tcb_desc
->data_rate
= MgntQuery_MgntFrameTxRate(ieee
);
241 tcb_desc
->RATRIndex
= 7;
242 tcb_desc
->bTxDisableRateFallBack
= 1;
243 tcb_desc
->bTxUseDriverAssingedRate
= 1;
245 if (ieee
->queue_stop
) {
246 enqueue_mgmt(ieee
, skb
);
248 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0]<<4);
250 if (ieee
->seq_ctrl
[0] == 0xFFF)
251 ieee
->seq_ctrl
[0] = 0;
255 /* avoid watchdog triggers */
256 ieee
->softmac_data_hard_start_xmit(skb
, ieee
->dev
,
260 spin_unlock_irqrestore(&ieee
->lock
, flags
);
262 spin_unlock_irqrestore(&ieee
->lock
, flags
);
263 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags
);
265 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
267 if (ieee
->seq_ctrl
[0] == 0xFFF)
268 ieee
->seq_ctrl
[0] = 0;
272 /* check whether the managed packet queued greater than 5 */
273 if (!ieee
->check_nic_enough_desc(ieee
->dev
, tcb_desc
->queue_index
) ||
274 (skb_queue_len(&ieee
->skb_waitQ
[tcb_desc
->queue_index
]) != 0) ||
275 (ieee
->queue_stop
)) {
276 /* insert the skb packet to the management queue */
277 /* as for the completion function, it does not need
278 * to check it any more.
280 netdev_info(ieee
->dev
,
281 "%s():insert to waitqueue, queue_index:%d!\n",
282 __func__
, tcb_desc
->queue_index
);
283 skb_queue_tail(&ieee
->skb_waitQ
[tcb_desc
->queue_index
],
286 ieee
->softmac_hard_start_xmit(skb
, ieee
->dev
);
288 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags
);
292 inline void softmac_ps_mgmt_xmit(struct sk_buff
*skb
,
293 struct rtllib_device
*ieee
)
295 short single
= ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
;
296 struct rtllib_hdr_3addr
*header
=
297 (struct rtllib_hdr_3addr
*) skb
->data
;
299 struct cb_desc
*tcb_desc
= (struct cb_desc
*)(skb
->cb
+ 8);
301 fc
= le16_to_cpu(header
->frame_ctl
);
302 type
= WLAN_FC_GET_TYPE(fc
);
303 stype
= WLAN_FC_GET_STYPE(fc
);
306 if (stype
!= RTLLIB_STYPE_PSPOLL
)
307 tcb_desc
->queue_index
= MGNT_QUEUE
;
309 tcb_desc
->queue_index
= HIGH_QUEUE
;
311 if (ieee
->disable_mgnt_queue
)
312 tcb_desc
->queue_index
= HIGH_QUEUE
;
315 tcb_desc
->data_rate
= MgntQuery_MgntFrameTxRate(ieee
);
316 tcb_desc
->RATRIndex
= 7;
317 tcb_desc
->bTxDisableRateFallBack
= 1;
318 tcb_desc
->bTxUseDriverAssingedRate
= 1;
320 if (type
!= RTLLIB_FTYPE_CTL
) {
321 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
323 if (ieee
->seq_ctrl
[0] == 0xFFF)
324 ieee
->seq_ctrl
[0] = 0;
329 /* avoid watchdog triggers */
330 ieee
->softmac_data_hard_start_xmit(skb
, ieee
->dev
,
334 if (type
!= RTLLIB_FTYPE_CTL
) {
335 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
337 if (ieee
->seq_ctrl
[0] == 0xFFF)
338 ieee
->seq_ctrl
[0] = 0;
342 ieee
->softmac_hard_start_xmit(skb
, ieee
->dev
);
347 static inline struct sk_buff
*rtllib_probe_req(struct rtllib_device
*ieee
)
349 unsigned int len
, rate_len
;
352 struct rtllib_probe_request
*req
;
354 len
= ieee
->current_network
.ssid_len
;
356 rate_len
= rtllib_MFIE_rate_len(ieee
);
358 skb
= dev_alloc_skb(sizeof(struct rtllib_probe_request
) +
359 2 + len
+ rate_len
+ ieee
->tx_headroom
);
364 skb_reserve(skb
, ieee
->tx_headroom
);
366 req
= (struct rtllib_probe_request
*) skb_put(skb
,
367 sizeof(struct rtllib_probe_request
));
368 req
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_PROBE_REQ
);
369 req
->header
.duration_id
= 0;
371 memset(req
->header
.addr1
, 0xff, ETH_ALEN
);
372 memcpy(req
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
373 memset(req
->header
.addr3
, 0xff, ETH_ALEN
);
375 tag
= (u8
*) skb_put(skb
, len
+ 2 + rate_len
);
377 *tag
++ = MFIE_TYPE_SSID
;
379 memcpy(tag
, ieee
->current_network
.ssid
, len
);
382 rtllib_MFIE_Brate(ieee
, &tag
);
383 rtllib_MFIE_Grate(ieee
, &tag
);
388 struct sk_buff
*rtllib_get_beacon_(struct rtllib_device
*ieee
);
390 static void rtllib_send_beacon(struct rtllib_device
*ieee
)
396 skb
= rtllib_get_beacon_(ieee
);
399 softmac_mgmt_xmit(skb
, ieee
);
400 ieee
->softmac_stats
.tx_beacons
++;
403 if (ieee
->beacon_txing
&& ieee
->ieee_up
)
404 mod_timer(&ieee
->beacon_timer
, jiffies
+
405 (msecs_to_jiffies(ieee
->current_network
.beacon_interval
- 5)));
409 static void rtllib_send_beacon_cb(unsigned long _ieee
)
411 struct rtllib_device
*ieee
=
412 (struct rtllib_device
*) _ieee
;
415 spin_lock_irqsave(&ieee
->beacon_lock
, flags
);
416 rtllib_send_beacon(ieee
);
417 spin_unlock_irqrestore(&ieee
->beacon_lock
, flags
);
422 * Enable network monitor mode, all rx packets will be received.
424 void rtllib_EnableNetMonitorMode(struct net_device
*dev
,
427 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
429 netdev_info(dev
, "========>Enter Monitor Mode\n");
431 ieee
->AllowAllDestAddrHandler(dev
, true, !bInitState
);
437 * Disable network network monitor mode, only packets destinated to
438 * us will be received.
440 void rtllib_DisableNetMonitorMode(struct net_device
*dev
,
443 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
445 netdev_info(dev
, "========>Exit Monitor Mode\n");
447 ieee
->AllowAllDestAddrHandler(dev
, false, !bInitState
);
453 * This enables the specialized promiscuous mode required by Intel.
454 * In this mode, Intel intends to hear traffics from/to other STAs in the
455 * same BSS. Therefore we don't have to disable checking BSSID and we only need
456 * to allow all dest. BUT: if we enable checking BSSID then we can't recv
457 * packets from other STA.
459 void rtllib_EnableIntelPromiscuousMode(struct net_device
*dev
,
462 bool bFilterOutNonAssociatedBSSID
= false;
464 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
466 netdev_info(dev
, "========>Enter Intel Promiscuous Mode\n");
468 ieee
->AllowAllDestAddrHandler(dev
, true, !bInitState
);
469 ieee
->SetHwRegHandler(dev
, HW_VAR_CECHK_BSSID
,
470 (u8
*)&bFilterOutNonAssociatedBSSID
);
472 ieee
->bNetPromiscuousMode
= true;
474 EXPORT_SYMBOL(rtllib_EnableIntelPromiscuousMode
);
479 * This disables the specialized promiscuous mode required by Intel.
480 * See MgntEnableIntelPromiscuousMode for detail.
482 void rtllib_DisableIntelPromiscuousMode(struct net_device
*dev
,
485 bool bFilterOutNonAssociatedBSSID
= true;
487 struct rtllib_device
*ieee
= netdev_priv_rsl(dev
);
489 netdev_info(dev
, "========>Exit Intel Promiscuous Mode\n");
491 ieee
->AllowAllDestAddrHandler(dev
, false, !bInitState
);
492 ieee
->SetHwRegHandler(dev
, HW_VAR_CECHK_BSSID
,
493 (u8
*)&bFilterOutNonAssociatedBSSID
);
495 ieee
->bNetPromiscuousMode
= false;
497 EXPORT_SYMBOL(rtllib_DisableIntelPromiscuousMode
);
499 static void rtllib_send_probe(struct rtllib_device
*ieee
, u8 is_mesh
)
503 skb
= rtllib_probe_req(ieee
);
505 softmac_mgmt_xmit(skb
, ieee
);
506 ieee
->softmac_stats
.tx_probe_rq
++;
511 void rtllib_send_probe_requests(struct rtllib_device
*ieee
, u8 is_mesh
)
513 if (ieee
->active_scan
&& (ieee
->softmac_features
&
514 IEEE_SOFTMAC_PROBERQ
)) {
515 rtllib_send_probe(ieee
, 0);
516 rtllib_send_probe(ieee
, 0);
520 static void rtllib_softmac_hint11d_wq(void *data
)
524 void rtllib_update_active_chan_map(struct rtllib_device
*ieee
)
526 memcpy(ieee
->active_channel_map
, GET_DOT11D_INFO(ieee
)->channel_map
,
527 MAX_CHANNEL_NUMBER
+1);
530 /* this performs syncro scan blocking the caller until all channels
531 * in the allowed channel map has been checked.
533 void rtllib_softmac_scan_syncro(struct rtllib_device
*ieee
, u8 is_mesh
)
535 union iwreq_data wrqu
;
538 rtllib_update_active_chan_map(ieee
);
540 ieee
->be_scan_inprogress
= true;
542 down(&ieee
->scan_sem
);
547 if (ch
> MAX_CHANNEL_NUMBER
)
548 goto out
; /* scan completed */
549 } while (!ieee
->active_channel_map
[ch
]);
551 /* this function can be called in two situations
552 * 1- We have switched to ad-hoc mode and we are
553 * performing a complete syncro scan before conclude
554 * there are no interesting cell and to create a
555 * new one. In this case the link state is
556 * RTLLIB_NOLINK until we found an interesting cell.
557 * If so the ieee8021_new_net, called by the RX path
558 * will set the state to RTLLIB_LINKED, so we stop
560 * 2- We are linked and the root uses run iwlist scan.
561 * So we switch to RTLLIB_LINKED_SCANNING to remember
562 * that we are still logically linked (not interested in
563 * new network events, despite for updating the net list,
564 * but we are temporarly 'unlinked' as the driver shall
565 * not filter RX frames and the channel is changing.
566 * So the only situation in which are interested is to check
567 * if the state become LINKED because of the #1 situation
570 if (ieee
->state
== RTLLIB_LINKED
)
572 if (ieee
->sync_scan_hurryup
) {
573 netdev_info(ieee
->dev
,
574 "============>sync_scan_hurryup out\n");
578 ieee
->set_chan(ieee
->dev
, ch
);
579 if (ieee
->active_channel_map
[ch
] == 1)
580 rtllib_send_probe_requests(ieee
, 0);
582 /* this prevent excessive time wait when we
583 * need to wait for a syncro scan to end..
585 msleep_interruptible_rsl(RTLLIB_SOFTMAC_SCAN_TIME
);
588 ieee
->actscanning
= false;
589 ieee
->sync_scan_hurryup
= 0;
591 if (ieee
->state
>= RTLLIB_LINKED
) {
592 if (IS_DOT11D_ENABLE(ieee
))
593 DOT11D_ScanComplete(ieee
);
597 ieee
->be_scan_inprogress
= false;
599 memset(&wrqu
, 0, sizeof(wrqu
));
600 wireless_send_event(ieee
->dev
, SIOCGIWSCAN
, &wrqu
, NULL
);
603 static void rtllib_softmac_scan_wq(void *data
)
605 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
606 struct rtllib_device
, softmac_scan_wq
);
607 u8 last_channel
= ieee
->current_network
.channel
;
609 rtllib_update_active_chan_map(ieee
);
613 if (rtllib_act_scanning(ieee
, true))
616 down(&ieee
->scan_sem
);
618 if (ieee
->eRFPowerState
== eRfOff
) {
619 netdev_info(ieee
->dev
,
620 "======>%s():rf state is eRfOff, return\n",
626 ieee
->current_network
.channel
=
627 (ieee
->current_network
.channel
+ 1) %
629 if (ieee
->scan_watch_dog
++ > MAX_CHANNEL_NUMBER
) {
630 if (!ieee
->active_channel_map
[ieee
->current_network
.channel
])
631 ieee
->current_network
.channel
= 6;
632 goto out
; /* no good chans */
634 } while (!ieee
->active_channel_map
[ieee
->current_network
.channel
]);
636 if (ieee
->scanning_continue
== 0)
639 ieee
->set_chan(ieee
->dev
, ieee
->current_network
.channel
);
641 if (ieee
->active_channel_map
[ieee
->current_network
.channel
] == 1)
642 rtllib_send_probe_requests(ieee
, 0);
644 queue_delayed_work_rsl(ieee
->wq
, &ieee
->softmac_scan_wq
,
645 msecs_to_jiffies(RTLLIB_SOFTMAC_SCAN_TIME
));
651 if (IS_DOT11D_ENABLE(ieee
))
652 DOT11D_ScanComplete(ieee
);
653 ieee
->current_network
.channel
= last_channel
;
656 ieee
->actscanning
= false;
657 ieee
->scan_watch_dog
= 0;
658 ieee
->scanning_continue
= 0;
664 static void rtllib_beacons_start(struct rtllib_device
*ieee
)
668 spin_lock_irqsave(&ieee
->beacon_lock
, flags
);
670 ieee
->beacon_txing
= 1;
671 rtllib_send_beacon(ieee
);
673 spin_unlock_irqrestore(&ieee
->beacon_lock
, flags
);
676 static void rtllib_beacons_stop(struct rtllib_device
*ieee
)
680 spin_lock_irqsave(&ieee
->beacon_lock
, flags
);
682 ieee
->beacon_txing
= 0;
683 del_timer_sync(&ieee
->beacon_timer
);
685 spin_unlock_irqrestore(&ieee
->beacon_lock
, flags
);
690 void rtllib_stop_send_beacons(struct rtllib_device
*ieee
)
692 if (ieee
->stop_send_beacons
)
693 ieee
->stop_send_beacons(ieee
->dev
);
694 if (ieee
->softmac_features
& IEEE_SOFTMAC_BEACONS
)
695 rtllib_beacons_stop(ieee
);
697 EXPORT_SYMBOL(rtllib_stop_send_beacons
);
700 void rtllib_start_send_beacons(struct rtllib_device
*ieee
)
702 if (ieee
->start_send_beacons
)
703 ieee
->start_send_beacons(ieee
->dev
);
704 if (ieee
->softmac_features
& IEEE_SOFTMAC_BEACONS
)
705 rtllib_beacons_start(ieee
);
707 EXPORT_SYMBOL(rtllib_start_send_beacons
);
710 static void rtllib_softmac_stop_scan(struct rtllib_device
*ieee
)
712 down(&ieee
->scan_sem
);
713 ieee
->scan_watch_dog
= 0;
714 if (ieee
->scanning_continue
== 1) {
715 ieee
->scanning_continue
= 0;
716 ieee
->actscanning
= false;
718 cancel_delayed_work(&ieee
->softmac_scan_wq
);
724 void rtllib_stop_scan(struct rtllib_device
*ieee
)
726 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
727 rtllib_softmac_stop_scan(ieee
);
729 if (ieee
->rtllib_stop_hw_scan
)
730 ieee
->rtllib_stop_hw_scan(ieee
->dev
);
733 EXPORT_SYMBOL(rtllib_stop_scan
);
735 void rtllib_stop_scan_syncro(struct rtllib_device
*ieee
)
737 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
738 ieee
->sync_scan_hurryup
= 1;
740 if (ieee
->rtllib_stop_hw_scan
)
741 ieee
->rtllib_stop_hw_scan(ieee
->dev
);
744 EXPORT_SYMBOL(rtllib_stop_scan_syncro
);
746 bool rtllib_act_scanning(struct rtllib_device
*ieee
, bool sync_scan
)
748 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
750 return ieee
->be_scan_inprogress
;
752 return ieee
->actscanning
|| ieee
->be_scan_inprogress
;
754 return test_bit(STATUS_SCANNING
, &ieee
->status
);
757 EXPORT_SYMBOL(rtllib_act_scanning
);
759 /* called with ieee->lock held */
760 static void rtllib_start_scan(struct rtllib_device
*ieee
)
762 RT_TRACE(COMP_DBG
, "===>%s()\n", __func__
);
763 if (ieee
->rtllib_ips_leave_wq
!= NULL
)
764 ieee
->rtllib_ips_leave_wq(ieee
->dev
);
766 if (IS_DOT11D_ENABLE(ieee
)) {
767 if (IS_COUNTRY_IE_VALID(ieee
))
768 RESET_CIE_WATCHDOG(ieee
);
770 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
771 if (ieee
->scanning_continue
== 0) {
772 ieee
->actscanning
= true;
773 ieee
->scanning_continue
= 1;
774 queue_delayed_work_rsl(ieee
->wq
,
775 &ieee
->softmac_scan_wq
, 0);
778 if (ieee
->rtllib_start_hw_scan
)
779 ieee
->rtllib_start_hw_scan(ieee
->dev
);
783 /* called with wx_sem held */
784 void rtllib_start_scan_syncro(struct rtllib_device
*ieee
, u8 is_mesh
)
786 if (IS_DOT11D_ENABLE(ieee
)) {
787 if (IS_COUNTRY_IE_VALID(ieee
))
788 RESET_CIE_WATCHDOG(ieee
);
790 ieee
->sync_scan_hurryup
= 0;
791 if (ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
) {
792 rtllib_softmac_scan_syncro(ieee
, is_mesh
);
794 if (ieee
->rtllib_start_hw_scan
)
795 ieee
->rtllib_start_hw_scan(ieee
->dev
);
798 EXPORT_SYMBOL(rtllib_start_scan_syncro
);
800 inline struct sk_buff
*rtllib_authentication_req(struct rtllib_network
*beacon
,
801 struct rtllib_device
*ieee
, int challengelen
, u8
*daddr
)
804 struct rtllib_authentication
*auth
;
807 len
= sizeof(struct rtllib_authentication
) + challengelen
+
808 ieee
->tx_headroom
+ 4;
809 skb
= dev_alloc_skb(len
);
814 skb_reserve(skb
, ieee
->tx_headroom
);
816 auth
= (struct rtllib_authentication
*)
817 skb_put(skb
, sizeof(struct rtllib_authentication
));
819 auth
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_AUTH
);
821 auth
->header
.frame_ctl
|= cpu_to_le16(RTLLIB_FCTL_WEP
);
823 auth
->header
.duration_id
= cpu_to_le16(0x013a);
824 memcpy(auth
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
825 memcpy(auth
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
826 memcpy(auth
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
827 if (ieee
->auth_mode
== 0)
828 auth
->algorithm
= WLAN_AUTH_OPEN
;
829 else if (ieee
->auth_mode
== 1)
830 auth
->algorithm
= cpu_to_le16(WLAN_AUTH_SHARED_KEY
);
831 else if (ieee
->auth_mode
== 2)
832 auth
->algorithm
= WLAN_AUTH_OPEN
;
833 auth
->transaction
= cpu_to_le16(ieee
->associate_seq
);
834 ieee
->associate_seq
++;
836 auth
->status
= cpu_to_le16(WLAN_STATUS_SUCCESS
);
841 static struct sk_buff
*rtllib_probe_resp(struct rtllib_device
*ieee
, u8
*dest
)
845 struct rtllib_probe_response
*beacon_buf
;
846 struct sk_buff
*skb
= NULL
;
848 int atim_len
, erp_len
;
849 struct lib80211_crypt_data
*crypt
;
851 char *ssid
= ieee
->current_network
.ssid
;
852 int ssid_len
= ieee
->current_network
.ssid_len
;
853 int rate_len
= ieee
->current_network
.rates_len
+2;
854 int rate_ex_len
= ieee
->current_network
.rates_ex_len
;
855 int wpa_ie_len
= ieee
->wpa_ie_len
;
856 u8 erpinfo_content
= 0;
858 u8
*tmp_ht_cap_buf
= NULL
;
859 u8 tmp_ht_cap_len
= 0;
860 u8
*tmp_ht_info_buf
= NULL
;
861 u8 tmp_ht_info_len
= 0;
862 struct rt_hi_throughput
*pHTInfo
= ieee
->pHTInfo
;
863 u8
*tmp_generic_ie_buf
= NULL
;
864 u8 tmp_generic_ie_len
= 0;
869 if (ieee
->current_network
.capability
& WLAN_CAPABILITY_IBSS
)
874 if ((ieee
->current_network
.mode
== IEEE_G
) ||
875 (ieee
->current_network
.mode
== IEEE_N_24G
&&
876 ieee
->pHTInfo
->bCurSuppCCK
)) {
879 if (ieee
->current_network
.buseprotection
)
880 erpinfo_content
|= ERP_UseProtection
;
884 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
885 encrypt
= ieee
->host_encrypt
&& crypt
&& crypt
->ops
&&
886 ((0 == strcmp(crypt
->ops
->name
, "R-WEP") || wpa_ie_len
));
887 if (ieee
->pHTInfo
->bCurrentHTSupport
) {
888 tmp_ht_cap_buf
= (u8
*) &(ieee
->pHTInfo
->SelfHTCap
);
889 tmp_ht_cap_len
= sizeof(ieee
->pHTInfo
->SelfHTCap
);
890 tmp_ht_info_buf
= (u8
*) &(ieee
->pHTInfo
->SelfHTInfo
);
891 tmp_ht_info_len
= sizeof(ieee
->pHTInfo
->SelfHTInfo
);
892 HTConstructCapabilityElement(ieee
, tmp_ht_cap_buf
,
893 &tmp_ht_cap_len
, encrypt
, false);
894 HTConstructInfoElement(ieee
, tmp_ht_info_buf
, &tmp_ht_info_len
,
897 if (pHTInfo
->bRegRT2RTAggregation
) {
898 tmp_generic_ie_buf
= ieee
->pHTInfo
->szRT2RTAggBuffer
;
900 sizeof(ieee
->pHTInfo
->szRT2RTAggBuffer
);
901 HTConstructRT2RTAggElement(ieee
, tmp_generic_ie_buf
,
902 &tmp_generic_ie_len
);
906 beacon_size
= sizeof(struct rtllib_probe_response
)+2+
907 ssid_len
+ 3 + rate_len
+ rate_ex_len
+ atim_len
+ erp_len
908 + wpa_ie_len
+ ieee
->tx_headroom
;
909 skb
= dev_alloc_skb(beacon_size
);
913 skb_reserve(skb
, ieee
->tx_headroom
);
915 beacon_buf
= (struct rtllib_probe_response
*) skb_put(skb
,
916 (beacon_size
- ieee
->tx_headroom
));
917 memcpy(beacon_buf
->header
.addr1
, dest
, ETH_ALEN
);
918 memcpy(beacon_buf
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
919 memcpy(beacon_buf
->header
.addr3
, ieee
->current_network
.bssid
, ETH_ALEN
);
921 beacon_buf
->header
.duration_id
= 0;
922 beacon_buf
->beacon_interval
=
923 cpu_to_le16(ieee
->current_network
.beacon_interval
);
924 beacon_buf
->capability
=
925 cpu_to_le16(ieee
->current_network
.capability
&
926 WLAN_CAPABILITY_IBSS
);
927 beacon_buf
->capability
|=
928 cpu_to_le16(ieee
->current_network
.capability
&
929 WLAN_CAPABILITY_SHORT_PREAMBLE
);
931 if (ieee
->short_slot
&& (ieee
->current_network
.capability
&
932 WLAN_CAPABILITY_SHORT_SLOT_TIME
))
933 beacon_buf
->capability
|=
934 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME
);
936 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
938 beacon_buf
->capability
|= cpu_to_le16(WLAN_CAPABILITY_PRIVACY
);
941 beacon_buf
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_PROBE_RESP
);
942 beacon_buf
->info_element
[0].id
= MFIE_TYPE_SSID
;
943 beacon_buf
->info_element
[0].len
= ssid_len
;
945 tag
= (u8
*) beacon_buf
->info_element
[0].data
;
947 memcpy(tag
, ssid
, ssid_len
);
951 *(tag
++) = MFIE_TYPE_RATES
;
952 *(tag
++) = rate_len
-2;
953 memcpy(tag
, ieee
->current_network
.rates
, rate_len
-2);
956 *(tag
++) = MFIE_TYPE_DS_SET
;
958 *(tag
++) = ieee
->current_network
.channel
;
962 *(tag
++) = MFIE_TYPE_IBSS_SET
;
964 val16
= ieee
->current_network
.atim_window
;
965 memcpy((u8
*)tag
, (u8
*)&val16
, 2);
970 *(tag
++) = MFIE_TYPE_ERP
;
972 *(tag
++) = erpinfo_content
;
975 *(tag
++) = MFIE_TYPE_RATES_EX
;
976 *(tag
++) = rate_ex_len
-2;
977 memcpy(tag
, ieee
->current_network
.rates_ex
, rate_ex_len
-2);
978 tag
+= rate_ex_len
-2;
982 if (ieee
->iw_mode
== IW_MODE_ADHOC
)
983 memcpy(&ieee
->wpa_ie
[14], &ieee
->wpa_ie
[8], 4);
984 memcpy(tag
, ieee
->wpa_ie
, ieee
->wpa_ie_len
);
985 tag
+= ieee
->wpa_ie_len
;
990 static struct sk_buff
*rtllib_assoc_resp(struct rtllib_device
*ieee
, u8
*dest
)
995 struct lib80211_crypt_data
*crypt
;
996 struct rtllib_assoc_response_frame
*assoc
;
999 unsigned int rate_len
= rtllib_MFIE_rate_len(ieee
);
1000 int len
= sizeof(struct rtllib_assoc_response_frame
) + rate_len
+
1003 skb
= dev_alloc_skb(len
);
1008 skb_reserve(skb
, ieee
->tx_headroom
);
1010 assoc
= (struct rtllib_assoc_response_frame
*)
1011 skb_put(skb
, sizeof(struct rtllib_assoc_response_frame
));
1013 assoc
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_ASSOC_RESP
);
1014 memcpy(assoc
->header
.addr1
, dest
, ETH_ALEN
);
1015 memcpy(assoc
->header
.addr3
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1016 memcpy(assoc
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1017 assoc
->capability
= cpu_to_le16(ieee
->iw_mode
== IW_MODE_MASTER
?
1018 WLAN_CAPABILITY_ESS
: WLAN_CAPABILITY_IBSS
);
1021 if (ieee
->short_slot
)
1022 assoc
->capability
|=
1023 cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME
);
1025 if (ieee
->host_encrypt
)
1026 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
1030 encrypt
= (crypt
&& crypt
->ops
);
1033 assoc
->capability
|= cpu_to_le16(WLAN_CAPABILITY_PRIVACY
);
1036 assoc
->aid
= cpu_to_le16(ieee
->assoc_id
);
1037 if (ieee
->assoc_id
== 0x2007)
1042 tag
= (u8
*) skb_put(skb
, rate_len
);
1043 rtllib_MFIE_Brate(ieee
, &tag
);
1044 rtllib_MFIE_Grate(ieee
, &tag
);
1049 static struct sk_buff
*rtllib_auth_resp(struct rtllib_device
*ieee
, int status
,
1052 struct sk_buff
*skb
= NULL
;
1053 struct rtllib_authentication
*auth
;
1054 int len
= ieee
->tx_headroom
+ sizeof(struct rtllib_authentication
) + 1;
1056 skb
= dev_alloc_skb(len
);
1060 skb
->len
= sizeof(struct rtllib_authentication
);
1062 skb_reserve(skb
, ieee
->tx_headroom
);
1064 auth
= (struct rtllib_authentication
*)
1065 skb_put(skb
, sizeof(struct rtllib_authentication
));
1067 auth
->status
= cpu_to_le16(status
);
1068 auth
->transaction
= cpu_to_le16(2);
1069 auth
->algorithm
= cpu_to_le16(WLAN_AUTH_OPEN
);
1071 memcpy(auth
->header
.addr3
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1072 memcpy(auth
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1073 memcpy(auth
->header
.addr1
, dest
, ETH_ALEN
);
1074 auth
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_AUTH
);
1080 static struct sk_buff
*rtllib_null_func(struct rtllib_device
*ieee
, short pwr
)
1082 struct sk_buff
*skb
;
1083 struct rtllib_hdr_3addr
*hdr
;
1085 skb
= dev_alloc_skb(sizeof(struct rtllib_hdr_3addr
)+ieee
->tx_headroom
);
1089 skb_reserve(skb
, ieee
->tx_headroom
);
1091 hdr
= (struct rtllib_hdr_3addr
*)skb_put(skb
,
1092 sizeof(struct rtllib_hdr_3addr
));
1094 memcpy(hdr
->addr1
, ieee
->current_network
.bssid
, ETH_ALEN
);
1095 memcpy(hdr
->addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1096 memcpy(hdr
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
);
1098 hdr
->frame_ctl
= cpu_to_le16(RTLLIB_FTYPE_DATA
|
1099 RTLLIB_STYPE_NULLFUNC
| RTLLIB_FCTL_TODS
|
1100 (pwr
? RTLLIB_FCTL_PM
: 0));
1107 static struct sk_buff
*rtllib_pspoll_func(struct rtllib_device
*ieee
)
1109 struct sk_buff
*skb
;
1110 struct rtllib_pspoll_hdr
*hdr
;
1112 skb
= dev_alloc_skb(sizeof(struct rtllib_pspoll_hdr
)+ieee
->tx_headroom
);
1116 skb_reserve(skb
, ieee
->tx_headroom
);
1118 hdr
= (struct rtllib_pspoll_hdr
*)skb_put(skb
,
1119 sizeof(struct rtllib_pspoll_hdr
));
1121 memcpy(hdr
->bssid
, ieee
->current_network
.bssid
, ETH_ALEN
);
1122 memcpy(hdr
->ta
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1124 hdr
->aid
= cpu_to_le16(ieee
->assoc_id
| 0xc000);
1125 hdr
->frame_ctl
= cpu_to_le16(RTLLIB_FTYPE_CTL
| RTLLIB_STYPE_PSPOLL
|
1132 static void rtllib_resp_to_assoc_rq(struct rtllib_device
*ieee
, u8
*dest
)
1134 struct sk_buff
*buf
= rtllib_assoc_resp(ieee
, dest
);
1137 softmac_mgmt_xmit(buf
, ieee
);
1141 static void rtllib_resp_to_auth(struct rtllib_device
*ieee
, int s
, u8
*dest
)
1143 struct sk_buff
*buf
= rtllib_auth_resp(ieee
, s
, dest
);
1146 softmac_mgmt_xmit(buf
, ieee
);
1150 static void rtllib_resp_to_probe(struct rtllib_device
*ieee
, u8
*dest
)
1152 struct sk_buff
*buf
= rtllib_probe_resp(ieee
, dest
);
1155 softmac_mgmt_xmit(buf
, ieee
);
1159 inline int SecIsInPMKIDList(struct rtllib_device
*ieee
, u8
*bssid
)
1164 if ((ieee
->PMKIDList
[i
].bUsed
) &&
1165 (memcmp(ieee
->PMKIDList
[i
].Bssid
, bssid
, ETH_ALEN
) == 0))
1168 } while (i
< NUM_PMKID_CACHE
);
1170 if (i
== NUM_PMKID_CACHE
)
1175 inline struct sk_buff
*rtllib_association_req(struct rtllib_network
*beacon
,
1176 struct rtllib_device
*ieee
)
1178 struct sk_buff
*skb
;
1179 struct rtllib_assoc_request_frame
*hdr
;
1182 u8
*ht_cap_buf
= NULL
;
1184 u8
*realtek_ie_buf
= NULL
;
1185 u8 realtek_ie_len
= 0;
1186 int wpa_ie_len
= ieee
->wpa_ie_len
;
1187 int wps_ie_len
= ieee
->wps_ie_len
;
1188 unsigned int ckip_ie_len
= 0;
1189 unsigned int ccxrm_ie_len
= 0;
1190 unsigned int cxvernum_ie_len
= 0;
1191 struct lib80211_crypt_data
*crypt
;
1195 unsigned int rate_len
= (beacon
->rates_len
?
1196 (beacon
->rates_len
+ 2) : 0) +
1197 (beacon
->rates_ex_len
? (beacon
->rates_ex_len
) +
1200 unsigned int wmm_info_len
= beacon
->qos_data
.supported
? 9 : 0;
1201 unsigned int turbo_info_len
= beacon
->Turbo_Enable
? 9 : 0;
1205 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
1207 encrypt
= ieee
->host_encrypt
&& crypt
&& crypt
->ops
&&
1208 ((0 == strcmp(crypt
->ops
->name
, "R-WEP") ||
1213 if ((ieee
->rtllib_ap_sec_type
&&
1214 (ieee
->rtllib_ap_sec_type(ieee
) & SEC_ALG_TKIP
)) ||
1215 ieee
->bForcedBgMode
) {
1216 ieee
->pHTInfo
->bEnableHT
= 0;
1217 ieee
->mode
= WIRELESS_MODE_G
;
1220 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1221 ht_cap_buf
= (u8
*)&(ieee
->pHTInfo
->SelfHTCap
);
1222 ht_cap_len
= sizeof(ieee
->pHTInfo
->SelfHTCap
);
1223 HTConstructCapabilityElement(ieee
, ht_cap_buf
, &ht_cap_len
,
1225 if (ieee
->pHTInfo
->bCurrentRT2RTAggregation
) {
1226 realtek_ie_buf
= ieee
->pHTInfo
->szRT2RTAggBuffer
;
1228 sizeof(ieee
->pHTInfo
->szRT2RTAggBuffer
);
1229 HTConstructRT2RTAggElement(ieee
, realtek_ie_buf
,
1234 if (beacon
->bCkipSupported
)
1236 if (beacon
->bCcxRmEnable
)
1238 if (beacon
->BssCcxVerNumber
>= 2)
1239 cxvernum_ie_len
= 5+2;
1241 PMKCacheIdx
= SecIsInPMKIDList(ieee
, ieee
->current_network
.bssid
);
1242 if (PMKCacheIdx
>= 0) {
1244 netdev_info(ieee
->dev
, "[PMK cache]: WPA2 IE length: %x\n",
1247 len
= sizeof(struct rtllib_assoc_request_frame
) + 2
1259 + ieee
->tx_headroom
;
1261 skb
= dev_alloc_skb(len
);
1266 skb_reserve(skb
, ieee
->tx_headroom
);
1268 hdr
= (struct rtllib_assoc_request_frame
*)
1269 skb_put(skb
, sizeof(struct rtllib_assoc_request_frame
) + 2);
1272 hdr
->header
.frame_ctl
= RTLLIB_STYPE_ASSOC_REQ
;
1273 hdr
->header
.duration_id
= cpu_to_le16(37);
1274 memcpy(hdr
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
1275 memcpy(hdr
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
1276 memcpy(hdr
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
1278 memcpy(ieee
->ap_mac_addr
, beacon
->bssid
, ETH_ALEN
);
1280 hdr
->capability
= cpu_to_le16(WLAN_CAPABILITY_ESS
);
1281 if (beacon
->capability
& WLAN_CAPABILITY_PRIVACY
)
1282 hdr
->capability
|= cpu_to_le16(WLAN_CAPABILITY_PRIVACY
);
1284 if (beacon
->capability
& WLAN_CAPABILITY_SHORT_PREAMBLE
)
1285 hdr
->capability
|= cpu_to_le16(WLAN_CAPABILITY_SHORT_PREAMBLE
);
1287 if (ieee
->short_slot
&&
1288 (beacon
->capability
&WLAN_CAPABILITY_SHORT_SLOT_TIME
))
1289 hdr
->capability
|= cpu_to_le16(WLAN_CAPABILITY_SHORT_SLOT_TIME
);
1292 hdr
->listen_interval
= cpu_to_le16(beacon
->listen_interval
);
1294 hdr
->info_element
[0].id
= MFIE_TYPE_SSID
;
1296 hdr
->info_element
[0].len
= beacon
->ssid_len
;
1297 tag
= skb_put(skb
, beacon
->ssid_len
);
1298 memcpy(tag
, beacon
->ssid
, beacon
->ssid_len
);
1300 tag
= skb_put(skb
, rate_len
);
1302 if (beacon
->rates_len
) {
1303 *tag
++ = MFIE_TYPE_RATES
;
1304 *tag
++ = beacon
->rates_len
;
1305 for (i
= 0; i
< beacon
->rates_len
; i
++)
1306 *tag
++ = beacon
->rates
[i
];
1309 if (beacon
->rates_ex_len
) {
1310 *tag
++ = MFIE_TYPE_RATES_EX
;
1311 *tag
++ = beacon
->rates_ex_len
;
1312 for (i
= 0; i
< beacon
->rates_ex_len
; i
++)
1313 *tag
++ = beacon
->rates_ex
[i
];
1316 if (beacon
->bCkipSupported
) {
1317 static const u8 AironetIeOui
[] = {0x00, 0x01, 0x66};
1318 u8 CcxAironetBuf
[30];
1319 struct octet_string osCcxAironetIE
;
1321 memset(CcxAironetBuf
, 0, 30);
1322 osCcxAironetIE
.Octet
= CcxAironetBuf
;
1323 osCcxAironetIE
.Length
= sizeof(CcxAironetBuf
);
1324 memcpy(osCcxAironetIE
.Octet
, AironetIeOui
,
1325 sizeof(AironetIeOui
));
1327 osCcxAironetIE
.Octet
[IE_CISCO_FLAG_POSITION
] |=
1328 (SUPPORT_CKIP_PK
|SUPPORT_CKIP_MIC
);
1329 tag
= skb_put(skb
, ckip_ie_len
);
1330 *tag
++ = MFIE_TYPE_AIRONET
;
1331 *tag
++ = osCcxAironetIE
.Length
;
1332 memcpy(tag
, osCcxAironetIE
.Octet
, osCcxAironetIE
.Length
);
1333 tag
+= osCcxAironetIE
.Length
;
1336 if (beacon
->bCcxRmEnable
) {
1337 static const u8 CcxRmCapBuf
[] = {0x00, 0x40, 0x96, 0x01, 0x01,
1339 struct octet_string osCcxRmCap
;
1341 osCcxRmCap
.Octet
= (u8
*) CcxRmCapBuf
;
1342 osCcxRmCap
.Length
= sizeof(CcxRmCapBuf
);
1343 tag
= skb_put(skb
, ccxrm_ie_len
);
1344 *tag
++ = MFIE_TYPE_GENERIC
;
1345 *tag
++ = osCcxRmCap
.Length
;
1346 memcpy(tag
, osCcxRmCap
.Octet
, osCcxRmCap
.Length
);
1347 tag
+= osCcxRmCap
.Length
;
1350 if (beacon
->BssCcxVerNumber
>= 2) {
1351 u8 CcxVerNumBuf
[] = {0x00, 0x40, 0x96, 0x03, 0x00};
1352 struct octet_string osCcxVerNum
;
1354 CcxVerNumBuf
[4] = beacon
->BssCcxVerNumber
;
1355 osCcxVerNum
.Octet
= CcxVerNumBuf
;
1356 osCcxVerNum
.Length
= sizeof(CcxVerNumBuf
);
1357 tag
= skb_put(skb
, cxvernum_ie_len
);
1358 *tag
++ = MFIE_TYPE_GENERIC
;
1359 *tag
++ = osCcxVerNum
.Length
;
1360 memcpy(tag
, osCcxVerNum
.Octet
, osCcxVerNum
.Length
);
1361 tag
+= osCcxVerNum
.Length
;
1363 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1364 if (ieee
->pHTInfo
->ePeerHTSpecVer
!= HT_SPEC_VER_EWC
) {
1365 tag
= skb_put(skb
, ht_cap_len
);
1366 *tag
++ = MFIE_TYPE_HT_CAP
;
1367 *tag
++ = ht_cap_len
- 2;
1368 memcpy(tag
, ht_cap_buf
, ht_cap_len
- 2);
1369 tag
+= ht_cap_len
- 2;
1374 tag
= skb_put(skb
, ieee
->wpa_ie_len
);
1375 memcpy(tag
, ieee
->wpa_ie
, ieee
->wpa_ie_len
);
1377 if (PMKCacheIdx
>= 0) {
1378 tag
= skb_put(skb
, 18);
1381 memcpy((tag
+ 2), &ieee
->PMKIDList
[PMKCacheIdx
].PMKID
,
1386 tag
= skb_put(skb
, wmm_info_len
);
1387 rtllib_WMM_Info(ieee
, &tag
);
1390 if (wps_ie_len
&& ieee
->wps_ie
) {
1391 tag
= skb_put(skb
, wps_ie_len
);
1392 memcpy(tag
, ieee
->wps_ie
, wps_ie_len
);
1395 tag
= skb_put(skb
, turbo_info_len
);
1397 rtllib_TURBO_Info(ieee
, &tag
);
1399 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1400 if (ieee
->pHTInfo
->ePeerHTSpecVer
== HT_SPEC_VER_EWC
) {
1401 tag
= skb_put(skb
, ht_cap_len
);
1402 *tag
++ = MFIE_TYPE_GENERIC
;
1403 *tag
++ = ht_cap_len
- 2;
1404 memcpy(tag
, ht_cap_buf
, ht_cap_len
- 2);
1405 tag
+= ht_cap_len
- 2;
1408 if (ieee
->pHTInfo
->bCurrentRT2RTAggregation
) {
1409 tag
= skb_put(skb
, realtek_ie_len
);
1410 *tag
++ = MFIE_TYPE_GENERIC
;
1411 *tag
++ = realtek_ie_len
- 2;
1412 memcpy(tag
, realtek_ie_buf
, realtek_ie_len
- 2);
1416 kfree(ieee
->assocreq_ies
);
1417 ieee
->assocreq_ies
= NULL
;
1418 ies
= &(hdr
->info_element
[0].id
);
1419 ieee
->assocreq_ies_len
= (skb
->data
+ skb
->len
) - ies
;
1420 ieee
->assocreq_ies
= kmalloc(ieee
->assocreq_ies_len
, GFP_ATOMIC
);
1421 if (ieee
->assocreq_ies
)
1422 memcpy(ieee
->assocreq_ies
, ies
, ieee
->assocreq_ies_len
);
1424 netdev_info(ieee
->dev
,
1425 "%s()Warning: can't alloc memory for assocreq_ies\n",
1427 ieee
->assocreq_ies_len
= 0;
1432 void rtllib_associate_abort(struct rtllib_device
*ieee
)
1434 unsigned long flags
;
1436 spin_lock_irqsave(&ieee
->lock
, flags
);
1438 ieee
->associate_seq
++;
1440 /* don't scan, and avoid to have the RX path possibily
1441 * try again to associate. Even do not react to AUTH or
1442 * ASSOC response. Just wait for the retry wq to be scheduled.
1443 * Here we will check if there are good nets to associate
1444 * with, so we retry or just get back to NO_LINK and scanning
1446 if (ieee
->state
== RTLLIB_ASSOCIATING_AUTHENTICATING
) {
1447 RTLLIB_DEBUG_MGMT("Authentication failed\n");
1448 ieee
->softmac_stats
.no_auth_rs
++;
1450 RTLLIB_DEBUG_MGMT("Association failed\n");
1451 ieee
->softmac_stats
.no_ass_rs
++;
1454 ieee
->state
= RTLLIB_ASSOCIATING_RETRY
;
1456 queue_delayed_work_rsl(ieee
->wq
, &ieee
->associate_retry_wq
,
1457 RTLLIB_SOFTMAC_ASSOC_RETRY_TIME
);
1459 spin_unlock_irqrestore(&ieee
->lock
, flags
);
1462 static void rtllib_associate_abort_cb(unsigned long dev
)
1464 rtllib_associate_abort((struct rtllib_device
*) dev
);
1467 static void rtllib_associate_step1(struct rtllib_device
*ieee
, u8
*daddr
)
1469 struct rtllib_network
*beacon
= &ieee
->current_network
;
1470 struct sk_buff
*skb
;
1472 RTLLIB_DEBUG_MGMT("Stopping scan\n");
1474 ieee
->softmac_stats
.tx_auth_rq
++;
1476 skb
= rtllib_authentication_req(beacon
, ieee
, 0, daddr
);
1479 rtllib_associate_abort(ieee
);
1481 ieee
->state
= RTLLIB_ASSOCIATING_AUTHENTICATING
;
1482 RTLLIB_DEBUG_MGMT("Sending authentication request\n");
1483 softmac_mgmt_xmit(skb
, ieee
);
1484 if (!timer_pending(&ieee
->associate_timer
)) {
1485 ieee
->associate_timer
.expires
= jiffies
+ (HZ
/ 2);
1486 add_timer(&ieee
->associate_timer
);
1491 static void rtllib_auth_challenge(struct rtllib_device
*ieee
, u8
*challenge
, int chlen
)
1494 struct sk_buff
*skb
;
1495 struct rtllib_network
*beacon
= &ieee
->current_network
;
1497 ieee
->associate_seq
++;
1498 ieee
->softmac_stats
.tx_auth_rq
++;
1500 skb
= rtllib_authentication_req(beacon
, ieee
, chlen
+ 2, beacon
->bssid
);
1503 rtllib_associate_abort(ieee
);
1505 c
= skb_put(skb
, chlen
+2);
1506 *(c
++) = MFIE_TYPE_CHALLENGE
;
1508 memcpy(c
, challenge
, chlen
);
1510 RTLLIB_DEBUG_MGMT("Sending authentication challenge response\n");
1512 rtllib_encrypt_fragment(ieee
, skb
,
1513 sizeof(struct rtllib_hdr_3addr
));
1515 softmac_mgmt_xmit(skb
, ieee
);
1516 mod_timer(&ieee
->associate_timer
, jiffies
+ (HZ
/2));
1521 static void rtllib_associate_step2(struct rtllib_device
*ieee
)
1523 struct sk_buff
*skb
;
1524 struct rtllib_network
*beacon
= &ieee
->current_network
;
1526 del_timer_sync(&ieee
->associate_timer
);
1528 RTLLIB_DEBUG_MGMT("Sending association request\n");
1530 ieee
->softmac_stats
.tx_ass_rq
++;
1531 skb
= rtllib_association_req(beacon
, ieee
);
1533 rtllib_associate_abort(ieee
);
1535 softmac_mgmt_xmit(skb
, ieee
);
1536 mod_timer(&ieee
->associate_timer
, jiffies
+ (HZ
/2));
1541 static void rtllib_associate_complete_wq(void *data
)
1543 struct rtllib_device
*ieee
= (struct rtllib_device
*)
1544 container_of_work_rsl(data
,
1545 struct rtllib_device
,
1546 associate_complete_wq
);
1547 struct rt_pwr_save_ctrl
*pPSC
= (struct rt_pwr_save_ctrl
*)
1548 (&(ieee
->PowerSaveControl
));
1549 netdev_info(ieee
->dev
, "Associated successfully\n");
1550 if (!ieee
->is_silent_reset
) {
1551 netdev_info(ieee
->dev
, "normal associate\n");
1552 notify_wx_assoc_event(ieee
);
1555 netif_carrier_on(ieee
->dev
);
1556 ieee
->is_roaming
= false;
1557 if (rtllib_is_54g(&ieee
->current_network
) &&
1558 (ieee
->modulation
& RTLLIB_OFDM_MODULATION
)) {
1560 netdev_info(ieee
->dev
, "Using G rates:%d\n", ieee
->rate
);
1563 ieee
->SetWirelessMode(ieee
->dev
, IEEE_B
);
1564 netdev_info(ieee
->dev
, "Using B rates:%d\n", ieee
->rate
);
1566 if (ieee
->pHTInfo
->bCurrentHTSupport
&& ieee
->pHTInfo
->bEnableHT
) {
1567 netdev_info(ieee
->dev
, "Successfully associated, ht enabled\n");
1570 netdev_info(ieee
->dev
,
1571 "Successfully associated, ht not enabled(%d, %d)\n",
1572 ieee
->pHTInfo
->bCurrentHTSupport
,
1573 ieee
->pHTInfo
->bEnableHT
);
1574 memset(ieee
->dot11HTOperationalRateSet
, 0, 16);
1576 ieee
->LinkDetectInfo
.SlotNum
= 2 * (1 +
1577 ieee
->current_network
.beacon_interval
/
1579 if (ieee
->LinkDetectInfo
.NumRecvBcnInPeriod
== 0 ||
1580 ieee
->LinkDetectInfo
.NumRecvDataInPeriod
== 0) {
1581 ieee
->LinkDetectInfo
.NumRecvBcnInPeriod
= 1;
1582 ieee
->LinkDetectInfo
.NumRecvDataInPeriod
= 1;
1584 pPSC
->LpsIdleCount
= 0;
1585 ieee
->link_change(ieee
->dev
);
1587 if (ieee
->is_silent_reset
) {
1588 netdev_info(ieee
->dev
, "silent reset associate\n");
1589 ieee
->is_silent_reset
= false;
1592 if (ieee
->data_hard_resume
)
1593 ieee
->data_hard_resume(ieee
->dev
);
1597 static void rtllib_sta_send_associnfo(struct rtllib_device
*ieee
)
1601 static void rtllib_associate_complete(struct rtllib_device
*ieee
)
1603 del_timer_sync(&ieee
->associate_timer
);
1605 ieee
->state
= RTLLIB_LINKED
;
1606 rtllib_sta_send_associnfo(ieee
);
1608 queue_work_rsl(ieee
->wq
, &ieee
->associate_complete_wq
);
1611 static void rtllib_associate_procedure_wq(void *data
)
1613 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
1614 struct rtllib_device
,
1615 associate_procedure_wq
);
1616 rtllib_stop_scan_syncro(ieee
);
1617 if (ieee
->rtllib_ips_leave
!= NULL
)
1618 ieee
->rtllib_ips_leave(ieee
->dev
);
1619 down(&ieee
->wx_sem
);
1621 if (ieee
->data_hard_stop
)
1622 ieee
->data_hard_stop(ieee
->dev
);
1624 rtllib_stop_scan(ieee
);
1625 RT_TRACE(COMP_DBG
, "===>%s(), chan:%d\n", __func__
,
1626 ieee
->current_network
.channel
);
1627 HTSetConnectBwMode(ieee
, HT_CHANNEL_WIDTH_20
, HT_EXTCHNL_OFFSET_NO_EXT
);
1628 if (ieee
->eRFPowerState
== eRfOff
) {
1630 "=============>%s():Rf state is eRfOff, schedule ipsleave wq again,return\n",
1632 if (ieee
->rtllib_ips_leave_wq
!= NULL
)
1633 ieee
->rtllib_ips_leave_wq(ieee
->dev
);
1637 ieee
->associate_seq
= 1;
1639 rtllib_associate_step1(ieee
, ieee
->current_network
.bssid
);
1644 inline void rtllib_softmac_new_net(struct rtllib_device
*ieee
,
1645 struct rtllib_network
*net
)
1647 u8 tmp_ssid
[IW_ESSID_MAX_SIZE
+ 1];
1648 int tmp_ssid_len
= 0;
1650 short apset
, ssidset
, ssidbroad
, apmatch
, ssidmatch
;
1652 /* we are interested in new new only if we are not associated
1653 * and we are not associating / authenticating
1655 if (ieee
->state
!= RTLLIB_NOLINK
)
1658 if ((ieee
->iw_mode
== IW_MODE_INFRA
) && !(net
->capability
&
1659 WLAN_CAPABILITY_ESS
))
1662 if ((ieee
->iw_mode
== IW_MODE_ADHOC
) && !(net
->capability
&
1663 WLAN_CAPABILITY_IBSS
))
1666 if ((ieee
->iw_mode
== IW_MODE_ADHOC
) &&
1667 (net
->channel
> ieee
->ibss_maxjoin_chal
))
1669 if (ieee
->iw_mode
== IW_MODE_INFRA
|| ieee
->iw_mode
== IW_MODE_ADHOC
) {
1670 /* if the user specified the AP MAC, we need also the essid
1671 * This could be obtained by beacons or, if the network does not
1672 * broadcast it, it can be put manually.
1674 apset
= ieee
->wap_set
;
1675 ssidset
= ieee
->ssid_set
;
1676 ssidbroad
= !(net
->ssid_len
== 0 || net
->ssid
[0] == '\0');
1677 apmatch
= (memcmp(ieee
->current_network
.bssid
, net
->bssid
,
1680 ssidmatch
= (ieee
->current_network
.ssid_len
==
1681 net
->hidden_ssid_len
) &&
1682 (!strncmp(ieee
->current_network
.ssid
,
1683 net
->hidden_ssid
, net
->hidden_ssid_len
));
1684 if (net
->hidden_ssid_len
> 0) {
1685 strncpy(net
->ssid
, net
->hidden_ssid
,
1686 net
->hidden_ssid_len
);
1687 net
->ssid_len
= net
->hidden_ssid_len
;
1692 (ieee
->current_network
.ssid_len
== net
->ssid_len
) &&
1693 (!strncmp(ieee
->current_network
.ssid
, net
->ssid
,
1696 /* if the user set the AP check if match.
1697 * if the network does not broadcast essid we check the
1698 * user supplied ANY essid
1699 * if the network does broadcast and the user does not set
1701 * if the network does broadcast and the user did set essid
1702 * check if essid match
1703 * if the ap is not set, check that the user set the bssid
1704 * and the network does broadcast and that those two bssid match
1706 if ((apset
&& apmatch
&&
1707 ((ssidset
&& ssidbroad
&& ssidmatch
) ||
1708 (ssidbroad
&& !ssidset
) || (!ssidbroad
&& ssidset
))) ||
1709 (!apset
&& ssidset
&& ssidbroad
&& ssidmatch
) ||
1710 (ieee
->is_roaming
&& ssidset
&& ssidbroad
&& ssidmatch
)) {
1711 /* if the essid is hidden replace it with the
1712 * essid provided by the user.
1715 strncpy(tmp_ssid
, ieee
->current_network
.ssid
,
1717 tmp_ssid_len
= ieee
->current_network
.ssid_len
;
1719 memcpy(&ieee
->current_network
, net
,
1720 sizeof(struct rtllib_network
));
1722 strncpy(ieee
->current_network
.ssid
, tmp_ssid
,
1724 ieee
->current_network
.ssid_len
= tmp_ssid_len
;
1726 netdev_info(ieee
->dev
,
1727 "Linking with %s,channel:%d, qos:%d, myHT:%d, networkHT:%d, mode:%x cur_net.flags:0x%x\n",
1728 ieee
->current_network
.ssid
,
1729 ieee
->current_network
.channel
,
1730 ieee
->current_network
.qos_data
.supported
,
1731 ieee
->pHTInfo
->bEnableHT
,
1732 ieee
->current_network
.bssht
.bdSupportHT
,
1733 ieee
->current_network
.mode
,
1734 ieee
->current_network
.flags
);
1736 if ((rtllib_act_scanning(ieee
, false)) &&
1737 !(ieee
->softmac_features
& IEEE_SOFTMAC_SCAN
))
1738 rtllib_stop_scan_syncro(ieee
);
1740 ieee
->hwscan_ch_bk
= ieee
->current_network
.channel
;
1741 HTResetIOTSetting(ieee
->pHTInfo
);
1743 if (ieee
->iw_mode
== IW_MODE_INFRA
) {
1744 /* Join the network for the first time */
1745 ieee
->AsocRetryCount
= 0;
1746 if ((ieee
->current_network
.qos_data
.supported
== 1) &&
1747 ieee
->current_network
.bssht
.bdSupportHT
)
1748 HTResetSelfAndSavePeerSetting(ieee
,
1749 &(ieee
->current_network
));
1751 ieee
->pHTInfo
->bCurrentHTSupport
=
1754 ieee
->state
= RTLLIB_ASSOCIATING
;
1755 if (ieee
->LedControlHandler
!= NULL
)
1756 ieee
->LedControlHandler(ieee
->dev
,
1757 LED_CTL_START_TO_LINK
);
1758 queue_delayed_work_rsl(ieee
->wq
,
1759 &ieee
->associate_procedure_wq
, 0);
1761 if (rtllib_is_54g(&ieee
->current_network
) &&
1762 (ieee
->modulation
& RTLLIB_OFDM_MODULATION
)) {
1764 ieee
->SetWirelessMode(ieee
->dev
, IEEE_G
);
1765 netdev_info(ieee
->dev
, "Using G rates\n");
1768 ieee
->SetWirelessMode(ieee
->dev
, IEEE_B
);
1769 netdev_info(ieee
->dev
, "Using B rates\n");
1771 memset(ieee
->dot11HTOperationalRateSet
, 0, 16);
1772 ieee
->state
= RTLLIB_LINKED
;
1778 void rtllib_softmac_check_all_nets(struct rtllib_device
*ieee
)
1780 unsigned long flags
;
1781 struct rtllib_network
*target
;
1783 spin_lock_irqsave(&ieee
->lock
, flags
);
1785 list_for_each_entry(target
, &ieee
->network_list
, list
) {
1787 /* if the state become different that NOLINK means
1788 * we had found what we are searching for
1791 if (ieee
->state
!= RTLLIB_NOLINK
)
1794 if (ieee
->scan_age
== 0 || time_after(target
->last_scanned
+
1795 ieee
->scan_age
, jiffies
))
1796 rtllib_softmac_new_net(ieee
, target
);
1798 spin_unlock_irqrestore(&ieee
->lock
, flags
);
1801 static inline u16
auth_parse(struct sk_buff
*skb
, u8
**challenge
, int *chlen
)
1803 struct rtllib_authentication
*a
;
1806 if (skb
->len
< (sizeof(struct rtllib_authentication
) -
1807 sizeof(struct rtllib_info_element
))) {
1808 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb
->len
);
1812 a
= (struct rtllib_authentication
*) skb
->data
;
1813 if (skb
->len
> (sizeof(struct rtllib_authentication
) + 3)) {
1814 t
= skb
->data
+ sizeof(struct rtllib_authentication
);
1816 if (*(t
++) == MFIE_TYPE_CHALLENGE
) {
1818 *challenge
= kmemdup(t
, *chlen
, GFP_ATOMIC
);
1823 return cpu_to_le16(a
->status
);
1826 static int auth_rq_parse(struct sk_buff
*skb
, u8
*dest
)
1828 struct rtllib_authentication
*a
;
1830 if (skb
->len
< (sizeof(struct rtllib_authentication
) -
1831 sizeof(struct rtllib_info_element
))) {
1832 RTLLIB_DEBUG_MGMT("invalid len in auth request: %d\n",
1836 a
= (struct rtllib_authentication
*) skb
->data
;
1838 memcpy(dest
, a
->header
.addr2
, ETH_ALEN
);
1840 if (le16_to_cpu(a
->algorithm
) != WLAN_AUTH_OPEN
)
1841 return WLAN_STATUS_NOT_SUPPORTED_AUTH_ALG
;
1843 return WLAN_STATUS_SUCCESS
;
1846 static short probe_rq_parse(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
1853 struct rtllib_hdr_3addr
*header
=
1854 (struct rtllib_hdr_3addr
*) skb
->data
;
1857 if (skb
->len
< sizeof(struct rtllib_hdr_3addr
))
1858 return -1; /* corrupted */
1861 (memcmp(header
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
) != 0) &&
1862 (!is_broadcast_ether_addr(header
->addr3
));
1866 memcpy(src
, header
->addr2
, ETH_ALEN
);
1868 skbend
= (u8
*)skb
->data
+ skb
->len
;
1870 tag
= skb
->data
+ sizeof(struct rtllib_hdr_3addr
);
1872 while (tag
+ 1 < skbend
) {
1875 ssidlen
= *(tag
+ 1);
1878 tag
++; /* point to the len field */
1879 tag
= tag
+ *(tag
); /* point to the last data byte of the tag */
1880 tag
++; /* point to the next tag */
1887 return 1; /* ssid not found in tagged param */
1889 return !strncmp(ssid
, ieee
->current_network
.ssid
, ssidlen
);
1892 static int assoc_rq_parse(struct sk_buff
*skb
, u8
*dest
)
1894 struct rtllib_assoc_request_frame
*a
;
1896 if (skb
->len
< (sizeof(struct rtllib_assoc_request_frame
) -
1897 sizeof(struct rtllib_info_element
))) {
1899 RTLLIB_DEBUG_MGMT("invalid len in auth request:%d\n", skb
->len
);
1903 a
= (struct rtllib_assoc_request_frame
*) skb
->data
;
1905 memcpy(dest
, a
->header
.addr2
, ETH_ALEN
);
1910 static inline u16
assoc_parse(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
1913 struct rtllib_assoc_response_frame
*response_head
;
1916 if (skb
->len
< sizeof(struct rtllib_assoc_response_frame
)) {
1917 RTLLIB_DEBUG_MGMT("invalid len in auth resp: %d\n", skb
->len
);
1921 response_head
= (struct rtllib_assoc_response_frame
*) skb
->data
;
1922 *aid
= le16_to_cpu(response_head
->aid
) & 0x3fff;
1924 status_code
= le16_to_cpu(response_head
->status
);
1925 if ((status_code
== WLAN_STATUS_ASSOC_DENIED_RATES
||
1926 status_code
== WLAN_STATUS_CAPS_UNSUPPORTED
) &&
1927 ((ieee
->mode
== IEEE_G
) &&
1928 (ieee
->current_network
.mode
== IEEE_N_24G
) &&
1929 (ieee
->AsocRetryCount
++ < (RT_ASOC_RETRY_LIMIT
-1)))) {
1930 ieee
->pHTInfo
->IOTAction
|= HT_IOT_ACT_PURE_N_MODE
;
1932 ieee
->AsocRetryCount
= 0;
1935 return le16_to_cpu(response_head
->status
);
1938 void rtllib_rx_probe_rq(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
1942 ieee
->softmac_stats
.rx_probe_rq
++;
1943 if (probe_rq_parse(ieee
, skb
, dest
) > 0) {
1944 ieee
->softmac_stats
.tx_probe_rs
++;
1945 rtllib_resp_to_probe(ieee
, dest
);
1949 static inline void rtllib_rx_auth_rq(struct rtllib_device
*ieee
,
1950 struct sk_buff
*skb
)
1955 ieee
->softmac_stats
.rx_auth_rq
++;
1957 status
= auth_rq_parse(skb
, dest
);
1959 rtllib_resp_to_auth(ieee
, status
, dest
);
1962 static inline void rtllib_rx_assoc_rq(struct rtllib_device
*ieee
,
1963 struct sk_buff
*skb
)
1968 ieee
->softmac_stats
.rx_ass_rq
++;
1969 if (assoc_rq_parse(skb
, dest
) != -1)
1970 rtllib_resp_to_assoc_rq(ieee
, dest
);
1972 netdev_info(ieee
->dev
, "New client associated: %pM\n", dest
);
1975 void rtllib_sta_ps_send_null_frame(struct rtllib_device
*ieee
, short pwr
)
1978 struct sk_buff
*buf
= rtllib_null_func(ieee
, pwr
);
1981 softmac_ps_mgmt_xmit(buf
, ieee
);
1983 EXPORT_SYMBOL(rtllib_sta_ps_send_null_frame
);
1985 void rtllib_sta_ps_send_pspoll_frame(struct rtllib_device
*ieee
)
1987 struct sk_buff
*buf
= rtllib_pspoll_func(ieee
);
1990 softmac_ps_mgmt_xmit(buf
, ieee
);
1993 static short rtllib_sta_ps_sleep(struct rtllib_device
*ieee
, u64
*time
)
1995 int timeout
= ieee
->ps_timeout
;
1997 struct rt_pwr_save_ctrl
*pPSC
= (struct rt_pwr_save_ctrl
*)
1998 (&(ieee
->PowerSaveControl
));
2000 if (ieee
->LPSDelayCnt
) {
2001 ieee
->LPSDelayCnt
--;
2005 dtim
= ieee
->current_network
.dtim_data
;
2006 if (!(dtim
& RTLLIB_DTIM_VALID
))
2008 timeout
= ieee
->current_network
.beacon_interval
;
2009 ieee
->current_network
.dtim_data
= RTLLIB_DTIM_INVALID
;
2010 /* there's no need to nofity AP that I find you buffered
2011 * with broadcast packet */
2012 if (dtim
& (RTLLIB_DTIM_UCAST
& ieee
->ps
))
2015 if (!time_after(jiffies
,
2016 ieee
->dev
->trans_start
+ msecs_to_jiffies(timeout
)))
2018 if (!time_after(jiffies
,
2019 ieee
->last_rx_ps_time
+ msecs_to_jiffies(timeout
)))
2021 if ((ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
) &&
2022 (ieee
->mgmt_queue_tail
!= ieee
->mgmt_queue_head
))
2026 if (ieee
->bAwakePktSent
) {
2027 pPSC
->LPSAwakeIntvl
= 1;
2031 if (pPSC
->LPSAwakeIntvl
== 0)
2032 pPSC
->LPSAwakeIntvl
= 1;
2033 if (pPSC
->RegMaxLPSAwakeIntvl
== 0)
2035 else if (pPSC
->RegMaxLPSAwakeIntvl
== 0xFF)
2036 MaxPeriod
= ieee
->current_network
.dtim_period
;
2038 MaxPeriod
= pPSC
->RegMaxLPSAwakeIntvl
;
2039 pPSC
->LPSAwakeIntvl
= (pPSC
->LPSAwakeIntvl
>=
2040 MaxPeriod
) ? MaxPeriod
:
2041 (pPSC
->LPSAwakeIntvl
+ 1);
2044 u8 LPSAwakeIntvl_tmp
= 0;
2045 u8 period
= ieee
->current_network
.dtim_period
;
2046 u8 count
= ieee
->current_network
.tim
.tim_count
;
2049 if (pPSC
->LPSAwakeIntvl
> period
)
2050 LPSAwakeIntvl_tmp
= period
+
2051 (pPSC
->LPSAwakeIntvl
-
2053 ((pPSC
->LPSAwakeIntvl
-period
) %
2056 LPSAwakeIntvl_tmp
= pPSC
->LPSAwakeIntvl
;
2059 if (pPSC
->LPSAwakeIntvl
>
2060 ieee
->current_network
.tim
.tim_count
)
2061 LPSAwakeIntvl_tmp
= count
+
2062 (pPSC
->LPSAwakeIntvl
- count
) -
2063 ((pPSC
->LPSAwakeIntvl
-count
)%period
);
2065 LPSAwakeIntvl_tmp
= pPSC
->LPSAwakeIntvl
;
2068 *time
= ieee
->current_network
.last_dtim_sta_time
2069 + msecs_to_jiffies(ieee
->current_network
.beacon_interval
*
2079 static inline void rtllib_sta_ps(struct rtllib_device
*ieee
)
2083 unsigned long flags
, flags2
;
2085 spin_lock_irqsave(&ieee
->lock
, flags
);
2087 if ((ieee
->ps
== RTLLIB_PS_DISABLED
||
2088 ieee
->iw_mode
!= IW_MODE_INFRA
||
2089 ieee
->state
!= RTLLIB_LINKED
)) {
2091 "=====>%s(): no need to ps,wake up!! ieee->ps is %d, ieee->iw_mode is %d, ieee->state is %d\n",
2092 __func__
, ieee
->ps
, ieee
->iw_mode
, ieee
->state
);
2093 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2094 rtllib_sta_wakeup(ieee
, 1);
2096 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2098 sleep
= rtllib_sta_ps_sleep(ieee
, &time
);
2099 /* 2 wake, 1 sleep, 0 do nothing */
2103 if (ieee
->sta_sleep
== LPS_IS_SLEEP
) {
2104 ieee
->enter_sleep_state(ieee
->dev
, time
);
2105 } else if (ieee
->sta_sleep
== LPS_IS_WAKE
) {
2106 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2108 if (ieee
->ps_is_queue_empty(ieee
->dev
)) {
2109 ieee
->sta_sleep
= LPS_WAIT_NULL_DATA_SEND
;
2110 ieee
->ack_tx_to_ieee
= 1;
2111 rtllib_sta_ps_send_null_frame(ieee
, 1);
2112 ieee
->ps_time
= time
;
2114 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2118 ieee
->bAwakePktSent
= false;
2120 } else if (sleep
== 2) {
2121 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2123 rtllib_sta_wakeup(ieee
, 1);
2125 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2129 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2133 void rtllib_sta_wakeup(struct rtllib_device
*ieee
, short nl
)
2135 if (ieee
->sta_sleep
== LPS_IS_WAKE
) {
2137 if (ieee
->pHTInfo
->IOTAction
&
2138 HT_IOT_ACT_NULL_DATA_POWER_SAVING
) {
2139 ieee
->ack_tx_to_ieee
= 1;
2140 rtllib_sta_ps_send_null_frame(ieee
, 0);
2142 ieee
->ack_tx_to_ieee
= 1;
2143 rtllib_sta_ps_send_pspoll_frame(ieee
);
2150 if (ieee
->sta_sleep
== LPS_IS_SLEEP
)
2151 ieee
->sta_wake_up(ieee
->dev
);
2153 if (ieee
->pHTInfo
->IOTAction
&
2154 HT_IOT_ACT_NULL_DATA_POWER_SAVING
) {
2155 ieee
->ack_tx_to_ieee
= 1;
2156 rtllib_sta_ps_send_null_frame(ieee
, 0);
2158 ieee
->ack_tx_to_ieee
= 1;
2159 ieee
->polling
= true;
2160 rtllib_sta_ps_send_pspoll_frame(ieee
);
2164 ieee
->sta_sleep
= LPS_IS_WAKE
;
2165 ieee
->polling
= false;
2169 void rtllib_ps_tx_ack(struct rtllib_device
*ieee
, short success
)
2171 unsigned long flags
, flags2
;
2173 spin_lock_irqsave(&ieee
->lock
, flags
);
2175 if (ieee
->sta_sleep
== LPS_WAIT_NULL_DATA_SEND
) {
2176 /* Null frame with PS bit set */
2178 ieee
->sta_sleep
= LPS_IS_SLEEP
;
2179 ieee
->enter_sleep_state(ieee
->dev
, ieee
->ps_time
);
2181 /* if the card report not success we can't be sure the AP
2182 * has not RXed so we can't assume the AP believe us awake
2184 } else {/* 21112005 - tx again null without PS bit if lost */
2186 if ((ieee
->sta_sleep
== LPS_IS_WAKE
) && !success
) {
2187 spin_lock_irqsave(&ieee
->mgmt_tx_lock
, flags2
);
2188 if (ieee
->pHTInfo
->IOTAction
&
2189 HT_IOT_ACT_NULL_DATA_POWER_SAVING
)
2190 rtllib_sta_ps_send_null_frame(ieee
, 0);
2192 rtllib_sta_ps_send_pspoll_frame(ieee
);
2193 spin_unlock_irqrestore(&ieee
->mgmt_tx_lock
, flags2
);
2196 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2198 EXPORT_SYMBOL(rtllib_ps_tx_ack
);
2200 static void rtllib_process_action(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
2202 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2203 u8
*act
= rtllib_get_payload((struct rtllib_hdr
*)header
);
2207 RTLLIB_DEBUG(RTLLIB_DL_ERR
,
2208 "error to get payload of action frame\n");
2218 rtllib_rx_ADDBAReq(ieee
, skb
);
2221 rtllib_rx_ADDBARsp(ieee
, skb
);
2224 rtllib_rx_DELBA(ieee
, skb
);
2234 inline int rtllib_rx_assoc_resp(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
2235 struct rtllib_rx_stats
*rx_stats
)
2240 struct rtllib_assoc_response_frame
*assoc_resp
;
2241 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2243 RTLLIB_DEBUG_MGMT("received [RE]ASSOCIATION RESPONSE (%d)\n",
2244 WLAN_FC_GET_STYPE(header
->frame_ctl
));
2246 if ((ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) &&
2247 ieee
->state
== RTLLIB_ASSOCIATING_AUTHENTICATED
&&
2248 (ieee
->iw_mode
== IW_MODE_INFRA
)) {
2249 errcode
= assoc_parse(ieee
, skb
, &aid
);
2251 struct rtllib_network
*network
=
2252 kzalloc(sizeof(struct rtllib_network
),
2257 ieee
->state
= RTLLIB_LINKED
;
2258 ieee
->assoc_id
= aid
;
2259 ieee
->softmac_stats
.rx_ass_ok
++;
2260 /* station support qos */
2261 /* Let the register setting default with Legacy station */
2262 assoc_resp
= (struct rtllib_assoc_response_frame
*)skb
->data
;
2263 if (ieee
->current_network
.qos_data
.supported
== 1) {
2264 if (rtllib_parse_info_param(ieee
, assoc_resp
->info_element
,
2265 rx_stats
->len
- sizeof(*assoc_resp
),
2266 network
, rx_stats
)) {
2270 memcpy(ieee
->pHTInfo
->PeerHTCapBuf
,
2271 network
->bssht
.bdHTCapBuf
,
2272 network
->bssht
.bdHTCapLen
);
2273 memcpy(ieee
->pHTInfo
->PeerHTInfoBuf
,
2274 network
->bssht
.bdHTInfoBuf
,
2275 network
->bssht
.bdHTInfoLen
);
2276 if (ieee
->handle_assoc_response
!= NULL
)
2277 ieee
->handle_assoc_response(ieee
->dev
,
2278 (struct rtllib_assoc_response_frame
*)header
,
2283 kfree(ieee
->assocresp_ies
);
2284 ieee
->assocresp_ies
= NULL
;
2285 ies
= &(assoc_resp
->info_element
[0].id
);
2286 ieee
->assocresp_ies_len
= (skb
->data
+ skb
->len
) - ies
;
2287 ieee
->assocresp_ies
= kmalloc(ieee
->assocresp_ies_len
,
2289 if (ieee
->assocresp_ies
)
2290 memcpy(ieee
->assocresp_ies
, ies
,
2291 ieee
->assocresp_ies_len
);
2293 netdev_info(ieee
->dev
,
2294 "%s()Warning: can't alloc memory for assocresp_ies\n",
2296 ieee
->assocresp_ies_len
= 0;
2298 rtllib_associate_complete(ieee
);
2300 /* aid could not been allocated */
2301 ieee
->softmac_stats
.rx_ass_err
++;
2302 netdev_info(ieee
->dev
,
2303 "Association response status code 0x%x\n",
2306 "Association response status code 0x%x\n",
2308 if (ieee
->AsocRetryCount
< RT_ASOC_RETRY_LIMIT
)
2309 queue_delayed_work_rsl(ieee
->wq
,
2310 &ieee
->associate_procedure_wq
, 0);
2312 rtllib_associate_abort(ieee
);
2318 inline int rtllib_rx_auth(struct rtllib_device
*ieee
, struct sk_buff
*skb
,
2319 struct rtllib_rx_stats
*rx_stats
)
2324 bool bSupportNmode
= true, bHalfSupportNmode
= false;
2326 if (ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) {
2327 if (ieee
->state
== RTLLIB_ASSOCIATING_AUTHENTICATING
&&
2328 (ieee
->iw_mode
== IW_MODE_INFRA
)) {
2329 RTLLIB_DEBUG_MGMT("Received authentication response");
2331 errcode
= auth_parse(skb
, &challenge
, &chlen
);
2333 if (ieee
->open_wep
|| !challenge
) {
2334 ieee
->state
= RTLLIB_ASSOCIATING_AUTHENTICATED
;
2335 ieee
->softmac_stats
.rx_auth_rs_ok
++;
2336 if (!(ieee
->pHTInfo
->IOTAction
&
2337 HT_IOT_ACT_PURE_N_MODE
)) {
2338 if (!ieee
->GetNmodeSupportBySecCfg(ieee
->dev
)) {
2339 if (IsHTHalfNmodeAPs(ieee
)) {
2340 bSupportNmode
= true;
2341 bHalfSupportNmode
= true;
2343 bSupportNmode
= false;
2344 bHalfSupportNmode
= false;
2348 /* Dummy wirless mode setting to avoid
2349 * encryption issue */
2350 if (bSupportNmode
) {
2351 ieee
->SetWirelessMode(ieee
->dev
,
2352 ieee
->current_network
.mode
);
2355 ieee
->SetWirelessMode(ieee
->dev
,
2359 if (ieee
->current_network
.mode
==
2360 IEEE_N_24G
&& bHalfSupportNmode
) {
2361 netdev_info(ieee
->dev
,
2362 "======>enter half N mode\n");
2363 ieee
->bHalfWirelessN24GMode
=
2366 ieee
->bHalfWirelessN24GMode
=
2369 rtllib_associate_step2(ieee
);
2371 rtllib_auth_challenge(ieee
, challenge
,
2375 ieee
->softmac_stats
.rx_auth_rs_err
++;
2376 RTLLIB_DEBUG_MGMT("Authentication respose status code 0x%x",
2379 netdev_info(ieee
->dev
,
2380 "Authentication respose status code 0x%x",
2382 rtllib_associate_abort(ieee
);
2385 } else if (ieee
->iw_mode
== IW_MODE_MASTER
) {
2386 rtllib_rx_auth_rq(ieee
, skb
);
2392 inline int rtllib_rx_deauth(struct rtllib_device
*ieee
, struct sk_buff
*skb
)
2394 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2396 if (memcmp(header
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
) != 0)
2399 /* FIXME for now repeat all the association procedure
2400 * both for disassociation and deauthentication
2402 if ((ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) &&
2403 ieee
->state
== RTLLIB_LINKED
&&
2404 (ieee
->iw_mode
== IW_MODE_INFRA
)) {
2405 netdev_info(ieee
->dev
,
2406 "==========>received disassoc/deauth(%x) frame, reason code:%x\n",
2407 WLAN_FC_GET_STYPE(header
->frame_ctl
),
2408 ((struct rtllib_disassoc
*)skb
->data
)->reason
);
2409 ieee
->state
= RTLLIB_ASSOCIATING
;
2410 ieee
->softmac_stats
.reassoc
++;
2411 ieee
->is_roaming
= true;
2412 ieee
->LinkDetectInfo
.bBusyTraffic
= false;
2413 rtllib_disassociate(ieee
);
2414 RemovePeerTS(ieee
, header
->addr2
);
2415 if (ieee
->LedControlHandler
!= NULL
)
2416 ieee
->LedControlHandler(ieee
->dev
,
2417 LED_CTL_START_TO_LINK
);
2419 if (!(ieee
->rtllib_ap_sec_type(ieee
) &
2420 (SEC_ALG_CCMP
|SEC_ALG_TKIP
)))
2421 queue_delayed_work_rsl(ieee
->wq
,
2422 &ieee
->associate_procedure_wq
, 5);
2427 inline int rtllib_rx_frame_softmac(struct rtllib_device
*ieee
,
2428 struct sk_buff
*skb
,
2429 struct rtllib_rx_stats
*rx_stats
, u16 type
,
2432 struct rtllib_hdr_3addr
*header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2434 if (!ieee
->proto_started
)
2437 switch (WLAN_FC_GET_STYPE(header
->frame_ctl
)) {
2438 case RTLLIB_STYPE_ASSOC_RESP
:
2439 case RTLLIB_STYPE_REASSOC_RESP
:
2440 if (rtllib_rx_assoc_resp(ieee
, skb
, rx_stats
) == 1)
2443 case RTLLIB_STYPE_ASSOC_REQ
:
2444 case RTLLIB_STYPE_REASSOC_REQ
:
2445 if ((ieee
->softmac_features
& IEEE_SOFTMAC_ASSOCIATE
) &&
2446 ieee
->iw_mode
== IW_MODE_MASTER
)
2447 rtllib_rx_assoc_rq(ieee
, skb
);
2449 case RTLLIB_STYPE_AUTH
:
2450 rtllib_rx_auth(ieee
, skb
, rx_stats
);
2452 case RTLLIB_STYPE_DISASSOC
:
2453 case RTLLIB_STYPE_DEAUTH
:
2454 rtllib_rx_deauth(ieee
, skb
);
2456 case RTLLIB_STYPE_MANAGE_ACT
:
2457 rtllib_process_action(ieee
, skb
);
2465 /* following are for a simpler TX queue management.
2466 * Instead of using netif_[stop/wake]_queue the driver
2467 * will use these two functions (plus a reset one), that
2468 * will internally use the kernel netif_* and takes
2469 * care of the ieee802.11 fragmentation.
2470 * So the driver receives a fragment per time and might
2471 * call the stop function when it wants to not
2472 * have enough room to TX an entire packet.
2473 * This might be useful if each fragment needs it's own
2474 * descriptor, thus just keep a total free memory > than
2475 * the max fragmentation threshold is not enough.. If the
2476 * ieee802.11 stack passed a TXB struct then you need
2477 * to keep N free descriptors where
2478 * N = MAX_PACKET_SIZE / MIN_FRAG_TRESHOLD
2479 * In this way you need just one and the 802.11 stack
2480 * will take care of buffering fragments and pass them to
2481 * to the driver later, when it wakes the queue.
2483 void rtllib_softmac_xmit(struct rtllib_txb
*txb
, struct rtllib_device
*ieee
)
2486 unsigned int queue_index
= txb
->queue_index
;
2487 unsigned long flags
;
2489 struct cb_desc
*tcb_desc
= NULL
;
2490 unsigned long queue_len
= 0;
2492 spin_lock_irqsave(&ieee
->lock
, flags
);
2494 /* called with 2nd parm 0, no tx mgmt lock required */
2495 rtllib_sta_wakeup(ieee
, 0);
2497 /* update the tx status */
2498 tcb_desc
= (struct cb_desc
*)(txb
->fragments
[0]->cb
+
2500 if (tcb_desc
->bMulticast
)
2501 ieee
->stats
.multicast
++;
2503 /* if xmit available, just xmit it immediately, else just insert it to
2505 for (i
= 0; i
< txb
->nr_frags
; i
++) {
2506 queue_len
= skb_queue_len(&ieee
->skb_waitQ
[queue_index
]);
2507 if ((queue_len
!= 0) ||\
2508 (!ieee
->check_nic_enough_desc(ieee
->dev
, queue_index
)) ||
2509 (ieee
->queue_stop
)) {
2510 /* insert the skb packet to the wait queue */
2511 /* as for the completion function, it does not need
2512 * to check it any more.
2514 if (queue_len
< 200)
2515 skb_queue_tail(&ieee
->skb_waitQ
[queue_index
],
2518 kfree_skb(txb
->fragments
[i
]);
2520 ieee
->softmac_data_hard_start_xmit(
2522 ieee
->dev
, ieee
->rate
);
2526 rtllib_txb_free(txb
);
2528 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2532 /* called with ieee->lock acquired */
2533 static void rtllib_resume_tx(struct rtllib_device
*ieee
)
2537 for (i
= ieee
->tx_pending
.frag
; i
< ieee
->tx_pending
.txb
->nr_frags
;
2540 if (ieee
->queue_stop
) {
2541 ieee
->tx_pending
.frag
= i
;
2545 ieee
->softmac_data_hard_start_xmit(
2546 ieee
->tx_pending
.txb
->fragments
[i
],
2547 ieee
->dev
, ieee
->rate
);
2548 ieee
->stats
.tx_packets
++;
2552 rtllib_txb_free(ieee
->tx_pending
.txb
);
2553 ieee
->tx_pending
.txb
= NULL
;
2557 void rtllib_reset_queue(struct rtllib_device
*ieee
)
2559 unsigned long flags
;
2561 spin_lock_irqsave(&ieee
->lock
, flags
);
2562 init_mgmt_queue(ieee
);
2563 if (ieee
->tx_pending
.txb
) {
2564 rtllib_txb_free(ieee
->tx_pending
.txb
);
2565 ieee
->tx_pending
.txb
= NULL
;
2567 ieee
->queue_stop
= 0;
2568 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2571 EXPORT_SYMBOL(rtllib_reset_queue
);
2573 void rtllib_wake_queue(struct rtllib_device
*ieee
)
2576 unsigned long flags
;
2577 struct sk_buff
*skb
;
2578 struct rtllib_hdr_3addr
*header
;
2580 spin_lock_irqsave(&ieee
->lock
, flags
);
2581 if (!ieee
->queue_stop
)
2584 ieee
->queue_stop
= 0;
2586 if (ieee
->softmac_features
& IEEE_SOFTMAC_SINGLE_QUEUE
) {
2587 while (!ieee
->queue_stop
&& (skb
= dequeue_mgmt(ieee
))) {
2589 header
= (struct rtllib_hdr_3addr
*) skb
->data
;
2591 header
->seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
2593 if (ieee
->seq_ctrl
[0] == 0xFFF)
2594 ieee
->seq_ctrl
[0] = 0;
2596 ieee
->seq_ctrl
[0]++;
2598 ieee
->softmac_data_hard_start_xmit(skb
, ieee
->dev
,
2602 if (!ieee
->queue_stop
&& ieee
->tx_pending
.txb
)
2603 rtllib_resume_tx(ieee
);
2605 if (!ieee
->queue_stop
&& netif_queue_stopped(ieee
->dev
)) {
2606 ieee
->softmac_stats
.swtxawake
++;
2607 netif_wake_queue(ieee
->dev
);
2611 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2615 void rtllib_stop_queue(struct rtllib_device
*ieee
)
2618 if (!netif_queue_stopped(ieee
->dev
)) {
2619 netif_stop_queue(ieee
->dev
);
2620 ieee
->softmac_stats
.swtxstop
++;
2622 ieee
->queue_stop
= 1;
2626 void rtllib_stop_all_queues(struct rtllib_device
*ieee
)
2630 for (i
= 0; i
< ieee
->dev
->num_tx_queues
; i
++)
2631 netdev_get_tx_queue(ieee
->dev
, i
)->trans_start
= jiffies
;
2633 netif_tx_stop_all_queues(ieee
->dev
);
2636 void rtllib_wake_all_queues(struct rtllib_device
*ieee
)
2638 netif_tx_wake_all_queues(ieee
->dev
);
2641 inline void rtllib_randomize_cell(struct rtllib_device
*ieee
)
2644 random_ether_addr(ieee
->current_network
.bssid
);
2647 /* called in user context only */
2648 void rtllib_start_master_bss(struct rtllib_device
*ieee
)
2652 if (ieee
->current_network
.ssid_len
== 0) {
2653 strncpy(ieee
->current_network
.ssid
,
2654 RTLLIB_DEFAULT_TX_ESSID
,
2657 ieee
->current_network
.ssid_len
=
2658 strlen(RTLLIB_DEFAULT_TX_ESSID
);
2662 memcpy(ieee
->current_network
.bssid
, ieee
->dev
->dev_addr
, ETH_ALEN
);
2664 ieee
->set_chan(ieee
->dev
, ieee
->current_network
.channel
);
2665 ieee
->state
= RTLLIB_LINKED
;
2666 ieee
->link_change(ieee
->dev
);
2667 notify_wx_assoc_event(ieee
);
2669 if (ieee
->data_hard_resume
)
2670 ieee
->data_hard_resume(ieee
->dev
);
2672 netif_carrier_on(ieee
->dev
);
2675 static void rtllib_start_monitor_mode(struct rtllib_device
*ieee
)
2677 /* reset hardware status */
2679 if (ieee
->data_hard_resume
)
2680 ieee
->data_hard_resume(ieee
->dev
);
2682 netif_carrier_on(ieee
->dev
);
2686 static void rtllib_start_ibss_wq(void *data
)
2688 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
2689 struct rtllib_device
, start_ibss_wq
);
2690 /* iwconfig mode ad-hoc will schedule this and return
2691 * on the other hand this will block further iwconfig SET
2692 * operations because of the wx_sem hold.
2693 * Anyway some most set operations set a flag to speed-up
2694 * (abort) this wq (when syncro scanning) before sleeping
2697 if (!ieee
->proto_started
) {
2698 netdev_info(ieee
->dev
, "==========oh driver down return\n");
2701 down(&ieee
->wx_sem
);
2703 if (ieee
->current_network
.ssid_len
== 0) {
2704 strcpy(ieee
->current_network
.ssid
, RTLLIB_DEFAULT_TX_ESSID
);
2705 ieee
->current_network
.ssid_len
= strlen(RTLLIB_DEFAULT_TX_ESSID
);
2709 ieee
->state
= RTLLIB_NOLINK
;
2710 ieee
->mode
= IEEE_G
;
2711 /* check if we have this cell in our network list */
2712 rtllib_softmac_check_all_nets(ieee
);
2715 /* if not then the state is not linked. Maybe the user switched to
2716 * ad-hoc mode just after being in monitor mode, or just after
2717 * being very few time in managed mode (so the card have had no
2718 * time to scan all the chans..) or we have just run up the iface
2719 * after setting ad-hoc mode. So we have to give another try..
2720 * Here, in ibss mode, should be safe to do this without extra care
2721 * (in bss mode we had to make sure no-one tried to associate when
2722 * we had just checked the ieee->state and we was going to start the
2723 * scan) because in ibss mode the rtllib_new_net function, when
2724 * finds a good net, just set the ieee->state to RTLLIB_LINKED,
2725 * so, at worst, we waste a bit of time to initiate an unneeded syncro
2726 * scan, that will stop at the first round because it sees the state
2729 if (ieee
->state
== RTLLIB_NOLINK
)
2730 rtllib_start_scan_syncro(ieee
, 0);
2732 /* the network definitively is not here.. create a new cell */
2733 if (ieee
->state
== RTLLIB_NOLINK
) {
2734 netdev_info(ieee
->dev
, "creating new IBSS cell\n");
2735 ieee
->current_network
.channel
= ieee
->IbssStartChnl
;
2737 rtllib_randomize_cell(ieee
);
2739 if (ieee
->modulation
& RTLLIB_CCK_MODULATION
) {
2741 ieee
->current_network
.rates_len
= 4;
2743 ieee
->current_network
.rates
[0] =
2744 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_1MB
;
2745 ieee
->current_network
.rates
[1] =
2746 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_2MB
;
2747 ieee
->current_network
.rates
[2] =
2748 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_5MB
;
2749 ieee
->current_network
.rates
[3] =
2750 RTLLIB_BASIC_RATE_MASK
| RTLLIB_CCK_RATE_11MB
;
2753 ieee
->current_network
.rates_len
= 0;
2755 if (ieee
->modulation
& RTLLIB_OFDM_MODULATION
) {
2756 ieee
->current_network
.rates_ex_len
= 8;
2758 ieee
->current_network
.rates_ex
[0] =
2759 RTLLIB_OFDM_RATE_6MB
;
2760 ieee
->current_network
.rates_ex
[1] =
2761 RTLLIB_OFDM_RATE_9MB
;
2762 ieee
->current_network
.rates_ex
[2] =
2763 RTLLIB_OFDM_RATE_12MB
;
2764 ieee
->current_network
.rates_ex
[3] =
2765 RTLLIB_OFDM_RATE_18MB
;
2766 ieee
->current_network
.rates_ex
[4] =
2767 RTLLIB_OFDM_RATE_24MB
;
2768 ieee
->current_network
.rates_ex
[5] =
2769 RTLLIB_OFDM_RATE_36MB
;
2770 ieee
->current_network
.rates_ex
[6] =
2771 RTLLIB_OFDM_RATE_48MB
;
2772 ieee
->current_network
.rates_ex
[7] =
2773 RTLLIB_OFDM_RATE_54MB
;
2777 ieee
->current_network
.rates_ex_len
= 0;
2781 ieee
->current_network
.qos_data
.supported
= 0;
2782 ieee
->SetWirelessMode(ieee
->dev
, IEEE_G
);
2783 ieee
->current_network
.mode
= ieee
->mode
;
2784 ieee
->current_network
.atim_window
= 0;
2785 ieee
->current_network
.capability
= WLAN_CAPABILITY_IBSS
;
2788 netdev_info(ieee
->dev
, "%s(): ieee->mode = %d\n", __func__
, ieee
->mode
);
2789 if ((ieee
->mode
== IEEE_N_24G
) || (ieee
->mode
== IEEE_N_5G
))
2790 HTUseDefaultSetting(ieee
);
2792 ieee
->pHTInfo
->bCurrentHTSupport
= false;
2794 ieee
->SetHwRegHandler(ieee
->dev
, HW_VAR_MEDIA_STATUS
,
2795 (u8
*)(&ieee
->state
));
2797 ieee
->state
= RTLLIB_LINKED
;
2798 ieee
->link_change(ieee
->dev
);
2800 HTSetConnectBwMode(ieee
, HT_CHANNEL_WIDTH_20
, HT_EXTCHNL_OFFSET_NO_EXT
);
2801 if (ieee
->LedControlHandler
!= NULL
)
2802 ieee
->LedControlHandler(ieee
->dev
, LED_CTL_LINK
);
2804 rtllib_start_send_beacons(ieee
);
2806 notify_wx_assoc_event(ieee
);
2808 if (ieee
->data_hard_resume
)
2809 ieee
->data_hard_resume(ieee
->dev
);
2811 netif_carrier_on(ieee
->dev
);
2816 inline void rtllib_start_ibss(struct rtllib_device
*ieee
)
2818 queue_delayed_work_rsl(ieee
->wq
, &ieee
->start_ibss_wq
,
2819 msecs_to_jiffies(150));
2822 /* this is called only in user context, with wx_sem held */
2823 void rtllib_start_bss(struct rtllib_device
*ieee
)
2825 unsigned long flags
;
2827 if (IS_DOT11D_ENABLE(ieee
) && !IS_COUNTRY_IE_VALID(ieee
)) {
2828 if (!ieee
->bGlobalDomain
)
2831 /* check if we have already found the net we
2832 * are interested in (if any).
2833 * if not (we are disassociated and we are not
2834 * in associating / authenticating phase) start the background scanning.
2836 rtllib_softmac_check_all_nets(ieee
);
2838 /* ensure no-one start an associating process (thus setting
2839 * the ieee->state to rtllib_ASSOCIATING) while we
2840 * have just checked it and we are going to enable scan.
2841 * The rtllib_new_net function is always called with
2842 * lock held (from both rtllib_softmac_check_all_nets and
2843 * the rx path), so we cannot be in the middle of such function
2845 spin_lock_irqsave(&ieee
->lock
, flags
);
2847 if (ieee
->state
== RTLLIB_NOLINK
)
2848 rtllib_start_scan(ieee
);
2849 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2852 static void rtllib_link_change_wq(void *data
)
2854 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
2855 struct rtllib_device
, link_change_wq
);
2856 ieee
->link_change(ieee
->dev
);
2858 /* called only in userspace context */
2859 void rtllib_disassociate(struct rtllib_device
*ieee
)
2861 netif_carrier_off(ieee
->dev
);
2862 if (ieee
->softmac_features
& IEEE_SOFTMAC_TX_QUEUE
)
2863 rtllib_reset_queue(ieee
);
2865 if (ieee
->data_hard_stop
)
2866 ieee
->data_hard_stop(ieee
->dev
);
2867 if (IS_DOT11D_ENABLE(ieee
))
2869 ieee
->state
= RTLLIB_NOLINK
;
2870 ieee
->is_set_key
= false;
2873 queue_delayed_work_rsl(ieee
->wq
, &ieee
->link_change_wq
, 0);
2875 notify_wx_assoc_event(ieee
);
2878 static void rtllib_associate_retry_wq(void *data
)
2880 struct rtllib_device
*ieee
= container_of_dwork_rsl(data
,
2881 struct rtllib_device
, associate_retry_wq
);
2882 unsigned long flags
;
2884 down(&ieee
->wx_sem
);
2885 if (!ieee
->proto_started
)
2888 if (ieee
->state
!= RTLLIB_ASSOCIATING_RETRY
)
2891 /* until we do not set the state to RTLLIB_NOLINK
2892 * there are no possibility to have someone else trying
2893 * to start an association procedure (we get here with
2894 * ieee->state = RTLLIB_ASSOCIATING).
2895 * When we set the state to RTLLIB_NOLINK it is possible
2896 * that the RX path run an attempt to associate, but
2897 * both rtllib_softmac_check_all_nets and the
2898 * RX path works with ieee->lock held so there are no
2899 * problems. If we are still disassociated then start a scan.
2900 * the lock here is necessary to ensure no one try to start
2901 * an association procedure when we have just checked the
2902 * state and we are going to start the scan.
2904 ieee
->beinretry
= true;
2905 ieee
->state
= RTLLIB_NOLINK
;
2907 rtllib_softmac_check_all_nets(ieee
);
2909 spin_lock_irqsave(&ieee
->lock
, flags
);
2911 if (ieee
->state
== RTLLIB_NOLINK
)
2912 rtllib_start_scan(ieee
);
2913 spin_unlock_irqrestore(&ieee
->lock
, flags
);
2915 ieee
->beinretry
= false;
2920 struct sk_buff
*rtllib_get_beacon_(struct rtllib_device
*ieee
)
2922 u8 broadcast_addr
[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
2924 struct sk_buff
*skb
;
2925 struct rtllib_probe_response
*b
;
2927 skb
= rtllib_probe_resp(ieee
, broadcast_addr
);
2932 b
= (struct rtllib_probe_response
*) skb
->data
;
2933 b
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_BEACON
);
2939 struct sk_buff
*rtllib_get_beacon(struct rtllib_device
*ieee
)
2941 struct sk_buff
*skb
;
2942 struct rtllib_probe_response
*b
;
2944 skb
= rtllib_get_beacon_(ieee
);
2948 b
= (struct rtllib_probe_response
*) skb
->data
;
2949 b
->header
.seq_ctl
= cpu_to_le16(ieee
->seq_ctrl
[0] << 4);
2951 if (ieee
->seq_ctrl
[0] == 0xFFF)
2952 ieee
->seq_ctrl
[0] = 0;
2954 ieee
->seq_ctrl
[0]++;
2958 EXPORT_SYMBOL(rtllib_get_beacon
);
2960 void rtllib_softmac_stop_protocol(struct rtllib_device
*ieee
, u8 mesh_flag
,
2963 rtllib_stop_scan_syncro(ieee
);
2964 down(&ieee
->wx_sem
);
2965 rtllib_stop_protocol(ieee
, shutdown
);
2968 EXPORT_SYMBOL(rtllib_softmac_stop_protocol
);
2971 void rtllib_stop_protocol(struct rtllib_device
*ieee
, u8 shutdown
)
2973 if (!ieee
->proto_started
)
2977 ieee
->proto_started
= 0;
2978 ieee
->proto_stoppping
= 1;
2979 if (ieee
->rtllib_ips_leave
!= NULL
)
2980 ieee
->rtllib_ips_leave(ieee
->dev
);
2983 rtllib_stop_send_beacons(ieee
);
2984 del_timer_sync(&ieee
->associate_timer
);
2985 cancel_delayed_work(&ieee
->associate_retry_wq
);
2986 cancel_delayed_work(&ieee
->start_ibss_wq
);
2987 cancel_delayed_work(&ieee
->link_change_wq
);
2988 rtllib_stop_scan(ieee
);
2990 if (ieee
->state
<= RTLLIB_ASSOCIATING_AUTHENTICATED
)
2991 ieee
->state
= RTLLIB_NOLINK
;
2993 if (ieee
->state
== RTLLIB_LINKED
) {
2994 if (ieee
->iw_mode
== IW_MODE_INFRA
)
2995 SendDisassociation(ieee
, 1, deauth_lv_ss
);
2996 rtllib_disassociate(ieee
);
3001 ieee
->proto_stoppping
= 0;
3003 kfree(ieee
->assocreq_ies
);
3004 ieee
->assocreq_ies
= NULL
;
3005 ieee
->assocreq_ies_len
= 0;
3006 kfree(ieee
->assocresp_ies
);
3007 ieee
->assocresp_ies
= NULL
;
3008 ieee
->assocresp_ies_len
= 0;
3011 void rtllib_softmac_start_protocol(struct rtllib_device
*ieee
, u8 mesh_flag
)
3013 down(&ieee
->wx_sem
);
3014 rtllib_start_protocol(ieee
);
3017 EXPORT_SYMBOL(rtllib_softmac_start_protocol
);
3019 void rtllib_start_protocol(struct rtllib_device
*ieee
)
3024 rtllib_update_active_chan_map(ieee
);
3026 if (ieee
->proto_started
)
3029 ieee
->proto_started
= 1;
3031 if (ieee
->current_network
.channel
== 0) {
3034 if (ch
> MAX_CHANNEL_NUMBER
)
3035 return; /* no channel found */
3036 } while (!ieee
->active_channel_map
[ch
]);
3037 ieee
->current_network
.channel
= ch
;
3040 if (ieee
->current_network
.beacon_interval
== 0)
3041 ieee
->current_network
.beacon_interval
= 100;
3043 for (i
= 0; i
< 17; i
++) {
3044 ieee
->last_rxseq_num
[i
] = -1;
3045 ieee
->last_rxfrag_num
[i
] = -1;
3046 ieee
->last_packet_time
[i
] = 0;
3049 if (ieee
->UpdateBeaconInterruptHandler
)
3050 ieee
->UpdateBeaconInterruptHandler(ieee
->dev
, false);
3053 /* if the user set the MAC of the ad-hoc cell and then
3054 * switch to managed mode, shall we make sure that association
3055 * attempts does not fail just because the user provide the essid
3056 * and the nic is still checking for the AP MAC ??
3058 if (ieee
->iw_mode
== IW_MODE_INFRA
) {
3059 rtllib_start_bss(ieee
);
3060 } else if (ieee
->iw_mode
== IW_MODE_ADHOC
) {
3061 if (ieee
->UpdateBeaconInterruptHandler
)
3062 ieee
->UpdateBeaconInterruptHandler(ieee
->dev
, true);
3064 rtllib_start_ibss(ieee
);
3066 } else if (ieee
->iw_mode
== IW_MODE_MASTER
) {
3067 rtllib_start_master_bss(ieee
);
3068 } else if (ieee
->iw_mode
== IW_MODE_MONITOR
) {
3069 rtllib_start_monitor_mode(ieee
);
3073 void rtllib_softmac_init(struct rtllib_device
*ieee
)
3077 memset(&ieee
->current_network
, 0, sizeof(struct rtllib_network
));
3079 ieee
->state
= RTLLIB_NOLINK
;
3080 for (i
= 0; i
< 5; i
++)
3081 ieee
->seq_ctrl
[i
] = 0;
3082 ieee
->pDot11dInfo
= kzalloc(sizeof(struct rt_dot11d_info
), GFP_ATOMIC
);
3083 if (!ieee
->pDot11dInfo
)
3084 RTLLIB_DEBUG(RTLLIB_DL_ERR
, "can't alloc memory for DOT11D\n");
3085 ieee
->LinkDetectInfo
.SlotIndex
= 0;
3086 ieee
->LinkDetectInfo
.SlotNum
= 2;
3087 ieee
->LinkDetectInfo
.NumRecvBcnInPeriod
= 0;
3088 ieee
->LinkDetectInfo
.NumRecvDataInPeriod
= 0;
3089 ieee
->LinkDetectInfo
.NumTxOkInPeriod
= 0;
3090 ieee
->LinkDetectInfo
.NumRxOkInPeriod
= 0;
3091 ieee
->LinkDetectInfo
.NumRxUnicastOkInPeriod
= 0;
3092 ieee
->bIsAggregateFrame
= false;
3094 ieee
->queue_stop
= 0;
3095 ieee
->scanning_continue
= 0;
3096 ieee
->softmac_features
= 0;
3099 ieee
->proto_started
= 0;
3100 ieee
->proto_stoppping
= 0;
3101 ieee
->basic_rate
= RTLLIB_DEFAULT_BASIC_RATE
;
3103 ieee
->ps
= RTLLIB_PS_DISABLED
;
3104 ieee
->sta_sleep
= LPS_IS_WAKE
;
3106 ieee
->Regdot11HTOperationalRateSet
[0] = 0xff;
3107 ieee
->Regdot11HTOperationalRateSet
[1] = 0xff;
3108 ieee
->Regdot11HTOperationalRateSet
[4] = 0x01;
3110 ieee
->Regdot11TxHTOperationalRateSet
[0] = 0xff;
3111 ieee
->Regdot11TxHTOperationalRateSet
[1] = 0xff;
3112 ieee
->Regdot11TxHTOperationalRateSet
[4] = 0x01;
3114 ieee
->FirstIe_InScan
= false;
3115 ieee
->actscanning
= false;
3116 ieee
->beinretry
= false;
3117 ieee
->is_set_key
= false;
3118 init_mgmt_queue(ieee
);
3120 ieee
->sta_edca_param
[0] = 0x0000A403;
3121 ieee
->sta_edca_param
[1] = 0x0000A427;
3122 ieee
->sta_edca_param
[2] = 0x005E4342;
3123 ieee
->sta_edca_param
[3] = 0x002F3262;
3124 ieee
->aggregation
= true;
3125 ieee
->enable_rx_imm_BA
= true;
3126 ieee
->tx_pending
.txb
= NULL
;
3128 _setup_timer(&ieee
->associate_timer
,
3129 rtllib_associate_abort_cb
,
3130 (unsigned long) ieee
);
3132 _setup_timer(&ieee
->beacon_timer
,
3133 rtllib_send_beacon_cb
,
3134 (unsigned long) ieee
);
3137 ieee
->wq
= create_workqueue(DRV_NAME
);
3139 INIT_DELAYED_WORK_RSL(&ieee
->link_change_wq
,
3140 (void *)rtllib_link_change_wq
, ieee
);
3141 INIT_DELAYED_WORK_RSL(&ieee
->start_ibss_wq
,
3142 (void *)rtllib_start_ibss_wq
, ieee
);
3143 INIT_WORK_RSL(&ieee
->associate_complete_wq
,
3144 (void *)rtllib_associate_complete_wq
, ieee
);
3145 INIT_DELAYED_WORK_RSL(&ieee
->associate_procedure_wq
,
3146 (void *)rtllib_associate_procedure_wq
, ieee
);
3147 INIT_DELAYED_WORK_RSL(&ieee
->softmac_scan_wq
,
3148 (void *)rtllib_softmac_scan_wq
, ieee
);
3149 INIT_DELAYED_WORK_RSL(&ieee
->softmac_hint11d_wq
,
3150 (void *)rtllib_softmac_hint11d_wq
, ieee
);
3151 INIT_DELAYED_WORK_RSL(&ieee
->associate_retry_wq
,
3152 (void *)rtllib_associate_retry_wq
, ieee
);
3153 INIT_WORK_RSL(&ieee
->wx_sync_scan_wq
, (void *)rtllib_wx_sync_scan_wq
,
3156 sema_init(&ieee
->wx_sem
, 1);
3157 sema_init(&ieee
->scan_sem
, 1);
3158 sema_init(&ieee
->ips_sem
, 1);
3160 spin_lock_init(&ieee
->mgmt_tx_lock
);
3161 spin_lock_init(&ieee
->beacon_lock
);
3163 tasklet_init(&ieee
->ps_task
,
3164 (void(*)(unsigned long)) rtllib_sta_ps
,
3165 (unsigned long)ieee
);
3169 void rtllib_softmac_free(struct rtllib_device
*ieee
)
3171 down(&ieee
->wx_sem
);
3172 kfree(ieee
->pDot11dInfo
);
3173 ieee
->pDot11dInfo
= NULL
;
3174 del_timer_sync(&ieee
->associate_timer
);
3176 cancel_delayed_work(&ieee
->associate_retry_wq
);
3177 destroy_workqueue(ieee
->wq
);
3179 tasklet_kill(&ieee
->ps_task
);
3182 /********************************************************
3183 * Start of WPA code. *
3184 * this is stolen from the ipw2200 driver *
3185 ********************************************************/
3188 static int rtllib_wpa_enable(struct rtllib_device
*ieee
, int value
)
3190 /* This is called when wpa_supplicant loads and closes the driver
3192 netdev_info(ieee
->dev
, "%s WPA\n", value
? "enabling" : "disabling");
3193 ieee
->wpa_enabled
= value
;
3194 memset(ieee
->ap_mac_addr
, 0, 6);
3199 static void rtllib_wpa_assoc_frame(struct rtllib_device
*ieee
, char *wpa_ie
,
3202 /* make sure WPA is enabled */
3203 rtllib_wpa_enable(ieee
, 1);
3205 rtllib_disassociate(ieee
);
3209 static int rtllib_wpa_mlme(struct rtllib_device
*ieee
, int command
, int reason
)
3215 case IEEE_MLME_STA_DEAUTH
:
3218 case IEEE_MLME_STA_DISASSOC
:
3219 rtllib_disassociate(ieee
);
3223 netdev_info(ieee
->dev
, "Unknown MLME request: %d\n", command
);
3231 static int rtllib_wpa_set_wpa_ie(struct rtllib_device
*ieee
,
3232 struct ieee_param
*param
, int plen
)
3236 if (param
->u
.wpa_ie
.len
> MAX_WPA_IE_LEN
||
3237 (param
->u
.wpa_ie
.len
&& param
->u
.wpa_ie
.data
== NULL
))
3240 if (param
->u
.wpa_ie
.len
) {
3241 buf
= kmemdup(param
->u
.wpa_ie
.data
, param
->u
.wpa_ie
.len
,
3246 kfree(ieee
->wpa_ie
);
3248 ieee
->wpa_ie_len
= param
->u
.wpa_ie
.len
;
3250 kfree(ieee
->wpa_ie
);
3251 ieee
->wpa_ie
= NULL
;
3252 ieee
->wpa_ie_len
= 0;
3255 rtllib_wpa_assoc_frame(ieee
, ieee
->wpa_ie
, ieee
->wpa_ie_len
);
3259 #define AUTH_ALG_OPEN_SYSTEM 0x1
3260 #define AUTH_ALG_SHARED_KEY 0x2
3261 #define AUTH_ALG_LEAP 0x4
3262 static int rtllib_wpa_set_auth_algs(struct rtllib_device
*ieee
, int value
)
3265 struct rtllib_security sec
= {
3266 .flags
= SEC_AUTH_MODE
,
3269 if (value
& AUTH_ALG_SHARED_KEY
) {
3270 sec
.auth_mode
= WLAN_AUTH_SHARED_KEY
;
3272 ieee
->auth_mode
= 1;
3273 } else if (value
& AUTH_ALG_OPEN_SYSTEM
) {
3274 sec
.auth_mode
= WLAN_AUTH_OPEN
;
3276 ieee
->auth_mode
= 0;
3277 } else if (value
& AUTH_ALG_LEAP
) {
3278 sec
.auth_mode
= WLAN_AUTH_LEAP
>> 6;
3280 ieee
->auth_mode
= 2;
3284 if (ieee
->set_security
)
3285 ieee
->set_security(ieee
->dev
, &sec
);
3290 static int rtllib_wpa_set_param(struct rtllib_device
*ieee
, u8 name
, u32 value
)
3293 unsigned long flags
;
3296 case IEEE_PARAM_WPA_ENABLED
:
3297 ret
= rtllib_wpa_enable(ieee
, value
);
3300 case IEEE_PARAM_TKIP_COUNTERMEASURES
:
3301 ieee
->tkip_countermeasures
= value
;
3304 case IEEE_PARAM_DROP_UNENCRYPTED
:
3308 * wpa_supplicant calls set_wpa_enabled when the driver
3309 * is loaded and unloaded, regardless of if WPA is being
3310 * used. No other calls are made which can be used to
3311 * determine if encryption will be used or not prior to
3312 * association being expected. If encryption is not being
3313 * used, drop_unencrypted is set to false, else true -- we
3314 * can use this to determine if the CAP_PRIVACY_ON bit should
3317 struct rtllib_security sec
= {
3318 .flags
= SEC_ENABLED
,
3321 ieee
->drop_unencrypted
= value
;
3322 /* We only change SEC_LEVEL for open mode. Others
3323 * are set by ipw_wpa_set_encryption.
3326 sec
.flags
|= SEC_LEVEL
;
3327 sec
.level
= SEC_LEVEL_0
;
3329 sec
.flags
|= SEC_LEVEL
;
3330 sec
.level
= SEC_LEVEL_1
;
3332 if (ieee
->set_security
)
3333 ieee
->set_security(ieee
->dev
, &sec
);
3337 case IEEE_PARAM_PRIVACY_INVOKED
:
3338 ieee
->privacy_invoked
= value
;
3341 case IEEE_PARAM_AUTH_ALGS
:
3342 ret
= rtllib_wpa_set_auth_algs(ieee
, value
);
3345 case IEEE_PARAM_IEEE_802_1X
:
3346 ieee
->ieee802_1x
= value
;
3348 case IEEE_PARAM_WPAX_SELECT
:
3349 spin_lock_irqsave(&ieee
->wpax_suitlist_lock
, flags
);
3350 spin_unlock_irqrestore(&ieee
->wpax_suitlist_lock
, flags
);
3354 netdev_info(ieee
->dev
, "Unknown WPA param: %d\n", name
);
3361 /* implementation borrowed from hostap driver */
3362 static int rtllib_wpa_set_encryption(struct rtllib_device
*ieee
,
3363 struct ieee_param
*param
, int param_len
,
3367 struct lib80211_crypto_ops
*ops
;
3368 struct lib80211_crypt_data
**crypt
;
3370 struct rtllib_security sec
= {
3374 param
->u
.crypt
.err
= 0;
3375 param
->u
.crypt
.alg
[IEEE_CRYPT_ALG_NAME_LEN
- 1] = '\0';
3378 (int) ((char *) param
->u
.crypt
.key
- (char *) param
) +
3379 param
->u
.crypt
.key_len
) {
3380 netdev_info(ieee
->dev
, "Len mismatch %d, %d\n", param_len
,
3381 param
->u
.crypt
.key_len
);
3384 if (is_broadcast_ether_addr(param
->sta_addr
)) {
3385 if (param
->u
.crypt
.idx
>= NUM_WEP_KEYS
)
3387 crypt
= &ieee
->crypt_info
.crypt
[param
->u
.crypt
.idx
];
3392 if (strcmp(param
->u
.crypt
.alg
, "none") == 0) {
3395 sec
.level
= SEC_LEVEL_0
;
3396 sec
.flags
|= SEC_ENABLED
| SEC_LEVEL
;
3397 lib80211_crypt_delayed_deinit(&ieee
->crypt_info
, crypt
);
3402 sec
.flags
|= SEC_ENABLED
;
3404 /* IPW HW cannot build TKIP MIC, host decryption still needed. */
3405 if (!(ieee
->host_encrypt
|| ieee
->host_decrypt
) &&
3406 strcmp(param
->u
.crypt
.alg
, "R-TKIP"))
3407 goto skip_host_crypt
;
3409 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3410 if (ops
== NULL
&& strcmp(param
->u
.crypt
.alg
, "R-WEP") == 0) {
3411 request_module("rtllib_crypt_wep");
3412 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3413 } else if (ops
== NULL
&& strcmp(param
->u
.crypt
.alg
, "R-TKIP") == 0) {
3414 request_module("rtllib_crypt_tkip");
3415 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3416 } else if (ops
== NULL
&& strcmp(param
->u
.crypt
.alg
, "R-CCMP") == 0) {
3417 request_module("rtllib_crypt_ccmp");
3418 ops
= lib80211_get_crypto_ops(param
->u
.crypt
.alg
);
3421 netdev_info(ieee
->dev
, "unknown crypto alg '%s'\n",
3422 param
->u
.crypt
.alg
);
3423 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_UNKNOWN_ALG
;
3427 if (*crypt
== NULL
|| (*crypt
)->ops
!= ops
) {
3428 struct lib80211_crypt_data
*new_crypt
;
3430 lib80211_crypt_delayed_deinit(&ieee
->crypt_info
, crypt
);
3432 new_crypt
= kzalloc(sizeof(*new_crypt
), GFP_KERNEL
);
3433 if (new_crypt
== NULL
) {
3437 new_crypt
->ops
= ops
;
3440 new_crypt
->ops
->init(param
->u
.crypt
.idx
);
3442 if (new_crypt
->priv
== NULL
) {
3444 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_CRYPT_INIT_FAILED
;
3452 if (param
->u
.crypt
.key_len
> 0 && (*crypt
)->ops
->set_key
&&
3453 (*crypt
)->ops
->set_key(param
->u
.crypt
.key
,
3454 param
->u
.crypt
.key_len
, param
->u
.crypt
.seq
,
3455 (*crypt
)->priv
) < 0) {
3456 netdev_info(ieee
->dev
, "key setting failed\n");
3457 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_KEY_SET_FAILED
;
3463 if (param
->u
.crypt
.set_tx
) {
3464 ieee
->crypt_info
.tx_keyidx
= param
->u
.crypt
.idx
;
3465 sec
.active_key
= param
->u
.crypt
.idx
;
3466 sec
.flags
|= SEC_ACTIVE_KEY
;
3468 sec
.flags
&= ~SEC_ACTIVE_KEY
;
3470 if (param
->u
.crypt
.alg
!= NULL
) {
3471 memcpy(sec
.keys
[param
->u
.crypt
.idx
],
3473 param
->u
.crypt
.key_len
);
3474 sec
.key_sizes
[param
->u
.crypt
.idx
] = param
->u
.crypt
.key_len
;
3475 sec
.flags
|= (1 << param
->u
.crypt
.idx
);
3477 if (strcmp(param
->u
.crypt
.alg
, "R-WEP") == 0) {
3478 sec
.flags
|= SEC_LEVEL
;
3479 sec
.level
= SEC_LEVEL_1
;
3480 } else if (strcmp(param
->u
.crypt
.alg
, "R-TKIP") == 0) {
3481 sec
.flags
|= SEC_LEVEL
;
3482 sec
.level
= SEC_LEVEL_2
;
3483 } else if (strcmp(param
->u
.crypt
.alg
, "R-CCMP") == 0) {
3484 sec
.flags
|= SEC_LEVEL
;
3485 sec
.level
= SEC_LEVEL_3
;
3489 if (ieee
->set_security
)
3490 ieee
->set_security(ieee
->dev
, &sec
);
3492 /* Do not reset port if card is in Managed mode since resetting will
3493 * generate new IEEE 802.11 authentication which may end up in looping
3494 * with IEEE 802.1X. If your hardware requires a reset after WEP
3495 * configuration (for example... Prism2), implement the reset_port in
3496 * the callbacks structures used to initialize the 802.11 stack. */
3497 if (ieee
->reset_on_keychange
&&
3498 ieee
->iw_mode
!= IW_MODE_INFRA
&&
3500 ieee
->reset_port(ieee
->dev
)) {
3501 netdev_info(ieee
->dev
, "reset_port failed\n");
3502 param
->u
.crypt
.err
= IEEE_CRYPT_ERR_CARD_CONF_FAILED
;
3509 inline struct sk_buff
*rtllib_disauth_skb(struct rtllib_network
*beacon
,
3510 struct rtllib_device
*ieee
, u16 asRsn
)
3512 struct sk_buff
*skb
;
3513 struct rtllib_disauth
*disauth
;
3514 int len
= sizeof(struct rtllib_disauth
) + ieee
->tx_headroom
;
3516 skb
= dev_alloc_skb(len
);
3520 skb_reserve(skb
, ieee
->tx_headroom
);
3522 disauth
= (struct rtllib_disauth
*) skb_put(skb
,
3523 sizeof(struct rtllib_disauth
));
3524 disauth
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_DEAUTH
);
3525 disauth
->header
.duration_id
= 0;
3527 memcpy(disauth
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
3528 memcpy(disauth
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
3529 memcpy(disauth
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
3531 disauth
->reason
= cpu_to_le16(asRsn
);
3535 inline struct sk_buff
*rtllib_disassociate_skb(struct rtllib_network
*beacon
,
3536 struct rtllib_device
*ieee
, u16 asRsn
)
3538 struct sk_buff
*skb
;
3539 struct rtllib_disassoc
*disass
;
3540 int len
= sizeof(struct rtllib_disassoc
) + ieee
->tx_headroom
;
3542 skb
= dev_alloc_skb(len
);
3547 skb_reserve(skb
, ieee
->tx_headroom
);
3549 disass
= (struct rtllib_disassoc
*) skb_put(skb
,
3550 sizeof(struct rtllib_disassoc
));
3551 disass
->header
.frame_ctl
= cpu_to_le16(RTLLIB_STYPE_DISASSOC
);
3552 disass
->header
.duration_id
= 0;
3554 memcpy(disass
->header
.addr1
, beacon
->bssid
, ETH_ALEN
);
3555 memcpy(disass
->header
.addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
3556 memcpy(disass
->header
.addr3
, beacon
->bssid
, ETH_ALEN
);
3558 disass
->reason
= cpu_to_le16(asRsn
);
3562 void SendDisassociation(struct rtllib_device
*ieee
, bool deauth
, u16 asRsn
)
3564 struct rtllib_network
*beacon
= &ieee
->current_network
;
3565 struct sk_buff
*skb
;
3568 skb
= rtllib_disauth_skb(beacon
, ieee
, asRsn
);
3570 skb
= rtllib_disassociate_skb(beacon
, ieee
, asRsn
);
3573 softmac_mgmt_xmit(skb
, ieee
);
3576 u8
rtllib_ap_sec_type(struct rtllib_device
*ieee
)
3578 static u8 ccmp_ie
[4] = {0x00, 0x50, 0xf2, 0x04};
3579 static u8 ccmp_rsn_ie
[4] = {0x00, 0x0f, 0xac, 0x04};
3580 int wpa_ie_len
= ieee
->wpa_ie_len
;
3581 struct lib80211_crypt_data
*crypt
;
3584 crypt
= ieee
->crypt_info
.crypt
[ieee
->crypt_info
.tx_keyidx
];
3585 encrypt
= (ieee
->current_network
.capability
& WLAN_CAPABILITY_PRIVACY
)
3586 || (ieee
->host_encrypt
&& crypt
&& crypt
->ops
&&
3587 (0 == strcmp(crypt
->ops
->name
, "R-WEP")));
3590 if (encrypt
&& (wpa_ie_len
== 0)) {
3592 } else if ((wpa_ie_len
!= 0)) {
3593 if (((ieee
->wpa_ie
[0] == 0xdd) &&
3594 (!memcmp(&(ieee
->wpa_ie
[14]), ccmp_ie
, 4))) ||
3595 ((ieee
->wpa_ie
[0] == 0x30) &&
3596 (!memcmp(&ieee
->wpa_ie
[10], ccmp_rsn_ie
, 4))))
3597 return SEC_ALG_CCMP
;
3599 return SEC_ALG_TKIP
;
3601 return SEC_ALG_NONE
;
3605 int rtllib_wpa_supplicant_ioctl(struct rtllib_device
*ieee
, struct iw_point
*p
,
3608 struct ieee_param
*param
;
3611 down(&ieee
->wx_sem
);
3613 if (p
->length
< sizeof(struct ieee_param
) || !p
->pointer
) {
3618 param
= memdup_user(p
->pointer
, p
->length
);
3619 if (IS_ERR(param
)) {
3620 ret
= PTR_ERR(param
);
3624 switch (param
->cmd
) {
3625 case IEEE_CMD_SET_WPA_PARAM
:
3626 ret
= rtllib_wpa_set_param(ieee
, param
->u
.wpa_param
.name
,
3627 param
->u
.wpa_param
.value
);
3630 case IEEE_CMD_SET_WPA_IE
:
3631 ret
= rtllib_wpa_set_wpa_ie(ieee
, param
, p
->length
);
3634 case IEEE_CMD_SET_ENCRYPTION
:
3635 ret
= rtllib_wpa_set_encryption(ieee
, param
, p
->length
, 0);
3639 ret
= rtllib_wpa_mlme(ieee
, param
->u
.mlme
.command
,
3640 param
->u
.mlme
.reason_code
);
3644 netdev_info(ieee
->dev
, "Unknown WPA supplicant request: %d\n",
3650 if (ret
== 0 && copy_to_user(p
->pointer
, param
, p
->length
))
3659 EXPORT_SYMBOL(rtllib_wpa_supplicant_ioctl
);
3661 static void rtllib_MgntDisconnectIBSS(struct rtllib_device
*rtllib
)
3665 bool bFilterOutNonAssociatedBSSID
= false;
3667 rtllib
->state
= RTLLIB_NOLINK
;
3669 for (i
= 0; i
< 6; i
++)
3670 rtllib
->current_network
.bssid
[i
] = 0x55;
3672 rtllib
->OpMode
= RT_OP_MODE_NO_LINK
;
3673 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_BSSID
,
3674 rtllib
->current_network
.bssid
);
3675 OpMode
= RT_OP_MODE_NO_LINK
;
3676 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_MEDIA_STATUS
, &OpMode
);
3677 rtllib_stop_send_beacons(rtllib
);
3679 bFilterOutNonAssociatedBSSID
= false;
3680 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_CECHK_BSSID
,
3681 (u8
*)(&bFilterOutNonAssociatedBSSID
));
3682 notify_wx_assoc_event(rtllib
);
3686 static void rtllib_MlmeDisassociateRequest(struct rtllib_device
*rtllib
, u8
*asSta
,
3692 RemovePeerTS(rtllib
, asSta
);
3694 if (memcmp(rtllib
->current_network
.bssid
, asSta
, 6) == 0) {
3695 rtllib
->state
= RTLLIB_NOLINK
;
3697 for (i
= 0; i
< 6; i
++)
3698 rtllib
->current_network
.bssid
[i
] = 0x22;
3699 OpMode
= RT_OP_MODE_NO_LINK
;
3700 rtllib
->OpMode
= RT_OP_MODE_NO_LINK
;
3701 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_MEDIA_STATUS
,
3703 rtllib_disassociate(rtllib
);
3705 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_BSSID
,
3706 rtllib
->current_network
.bssid
);
3713 rtllib_MgntDisconnectAP(
3714 struct rtllib_device
*rtllib
,
3718 bool bFilterOutNonAssociatedBSSID
= false;
3720 bFilterOutNonAssociatedBSSID
= false;
3721 rtllib
->SetHwRegHandler(rtllib
->dev
, HW_VAR_CECHK_BSSID
,
3722 (u8
*)(&bFilterOutNonAssociatedBSSID
));
3723 rtllib_MlmeDisassociateRequest(rtllib
, rtllib
->current_network
.bssid
,
3726 rtllib
->state
= RTLLIB_NOLINK
;
3729 bool rtllib_MgntDisconnect(struct rtllib_device
*rtllib
, u8 asRsn
)
3731 if (rtllib
->ps
!= RTLLIB_PS_DISABLED
)
3732 rtllib
->sta_wake_up(rtllib
->dev
);
3734 if (rtllib
->state
== RTLLIB_LINKED
) {
3735 if (rtllib
->iw_mode
== IW_MODE_ADHOC
)
3736 rtllib_MgntDisconnectIBSS(rtllib
);
3737 if (rtllib
->iw_mode
== IW_MODE_INFRA
)
3738 rtllib_MgntDisconnectAP(rtllib
, asRsn
);
3744 EXPORT_SYMBOL(rtllib_MgntDisconnect
);
3746 void notify_wx_assoc_event(struct rtllib_device
*ieee
)
3748 union iwreq_data wrqu
;
3750 if (ieee
->cannot_notify
)
3753 wrqu
.ap_addr
.sa_family
= ARPHRD_ETHER
;
3754 if (ieee
->state
== RTLLIB_LINKED
)
3755 memcpy(wrqu
.ap_addr
.sa_data
, ieee
->current_network
.bssid
,
3759 netdev_info(ieee
->dev
, "%s(): Tell user space disconnected\n",
3761 eth_zero_addr(wrqu
.ap_addr
.sa_data
);
3763 wireless_send_event(ieee
->dev
, SIOCGIWAP
, &wrqu
, NULL
);
3765 EXPORT_SYMBOL(notify_wx_assoc_event
);