1 // SPDX-License-Identifier: GPL-2.0
2 /********************************************************************************************************************************
3 * This file is created to process BA Action Frame. According to 802.11 spec, there are 3 BA action types at all. And as BA is
4 * related to TS, this part need some structure defined in QOS side code. Also TX RX is going to be resturctured, so how to send
5 * ADDBAREQ ADDBARSP and DELBA packet is still on consideration. Temporarily use MANAGE QUEUE instead of Normal Queue.
7 * *****************************************************************************************************************************/
8 #include <asm/byteorder.h>
9 #include <asm/unaligned.h>
10 #include "ieee80211.h"
11 #include "rtl819x_BA.h"
13 /********************************************************************************************************************
14 *function: Activate BA entry. And if Time is nozero, start timer.
15 * input: PBA_RECORD pBA //BA entry to be enabled
16 * u16 Time //indicate time delay.
18 ********************************************************************************************************************/
19 static void ActivateBAEntry(struct ieee80211_device
*ieee
, PBA_RECORD pBA
, u16 Time
)
23 mod_timer(&pBA
->Timer
, jiffies
+ msecs_to_jiffies(Time
));
26 /********************************************************************************************************************
27 *function: deactivate BA entry, including its timer.
28 * input: PBA_RECORD pBA //BA entry to be disabled
30 ********************************************************************************************************************/
31 static void DeActivateBAEntry(struct ieee80211_device
*ieee
, PBA_RECORD pBA
)
34 del_timer_sync(&pBA
->Timer
);
36 /********************************************************************************************************************
37 *function: deactivete BA entry in Tx Ts, and send DELBA.
39 * PTX_TS_RECORD pTxTs //Tx Ts which is to deactivate BA entry.
41 * notice: As PTX_TS_RECORD structure will be defined in QOS, so wait to be merged. //FIXME
42 ********************************************************************************************************************/
43 static u8
TxTsDeleteBA(struct ieee80211_device
*ieee
, PTX_TS_RECORD pTxTs
)
45 PBA_RECORD pAdmittedBa
= &pTxTs
->TxAdmittedBARecord
; //These two BA entries must exist in TS structure
46 PBA_RECORD pPendingBa
= &pTxTs
->TxPendingBARecord
;
47 u8 bSendDELBA
= false;
50 if (pPendingBa
->bValid
) {
51 DeActivateBAEntry(ieee
, pPendingBa
);
56 if (pAdmittedBa
->bValid
) {
57 DeActivateBAEntry(ieee
, pAdmittedBa
);
64 /********************************************************************************************************************
65 *function: deactivete BA entry in Tx Ts, and send DELBA.
67 * PRX_TS_RECORD pRxTs //Rx Ts which is to deactivate BA entry.
69 * notice: As PRX_TS_RECORD structure will be defined in QOS, so wait to be merged. //FIXME, same with above
70 ********************************************************************************************************************/
71 static u8
RxTsDeleteBA(struct ieee80211_device
*ieee
, PRX_TS_RECORD pRxTs
)
73 PBA_RECORD pBa
= &pRxTs
->RxAdmittedBARecord
;
74 u8 bSendDELBA
= false;
77 DeActivateBAEntry(ieee
, pBa
);
84 /********************************************************************************************************************
85 *function: reset BA entry
87 * PBA_RECORD pBA //entry to be reset
89 ********************************************************************************************************************/
90 void ResetBaEntry(PBA_RECORD pBA
)
93 pBA
->BaParamSet
.shortData
= 0;
94 pBA
->BaTimeoutValue
= 0;
96 pBA
->BaStartSeqCtrl
.ShortData
= 0;
98 //These functions need porting here or not?
99 /*******************************************************************************************************************************
100 *function: construct ADDBAREQ and ADDBARSP frame here together.
101 * input: u8* Dst //ADDBA frame's destination
102 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA.
103 * u16 StatusCode //status code in RSP and I will use it to indicate whether it's RSP or REQ(will I?)
104 * u8 type //indicate whether it's RSP(ACT_ADDBARSP) ow REQ(ACT_ADDBAREQ)
106 * return: sk_buff* skb //return constructed skb to xmit
107 *******************************************************************************************************************************/
108 static struct sk_buff
*ieee80211_ADDBA(struct ieee80211_device
*ieee
, u8
*Dst
, PBA_RECORD pBA
, u16 StatusCode
, u8 type
)
110 struct sk_buff
*skb
= NULL
;
111 struct rtl_80211_hdr_3addr
*BAReq
= NULL
;
113 u16 len
= ieee
->tx_headroom
+ 9;
114 //category(1) + action field(1) + Dialog Token(1) + BA Parameter Set(2) + BA Timeout Value(2) + BA Start SeqCtrl(2)(or StatusCode(2))
115 IEEE80211_DEBUG(IEEE80211_DL_TRACE
| IEEE80211_DL_BA
, "========>%s(), frame(%d) sentd to:%pM, ieee->dev:%p\n", __func__
, type
, Dst
, ieee
->dev
);
117 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "pBA is NULL\n");
120 skb
= dev_alloc_skb(len
+ sizeof( struct rtl_80211_hdr_3addr
)); //need to add something others? FIXME
122 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "can't alloc skb for ADDBA_REQ\n");
126 memset(skb
->data
, 0, sizeof( struct rtl_80211_hdr_3addr
)); //I wonder whether it's necessary. Apparently kernel will not do it when alloc a skb.
127 skb_reserve(skb
, ieee
->tx_headroom
);
129 BAReq
= skb_put(skb
, sizeof(struct rtl_80211_hdr_3addr
));
131 memcpy(BAReq
->addr1
, Dst
, ETH_ALEN
);
132 memcpy(BAReq
->addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
134 memcpy(BAReq
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
);
136 BAReq
->frame_ctl
= cpu_to_le16(IEEE80211_STYPE_MANAGE_ACT
); //action frame
138 //tag += sizeof( struct rtl_80211_hdr_3addr); //move to action field
139 tag
= skb_put(skb
, 9);
143 *tag
++= pBA
->DialogToken
;
145 if (ACT_ADDBARSP
== type
) {
147 printk(KERN_INFO
"=====>to send ADDBARSP\n");
149 put_unaligned_le16(StatusCode
, tag
);
154 put_unaligned_le16(pBA
->BaParamSet
.shortData
, tag
);
158 put_unaligned_le16(pBA
->BaTimeoutValue
, tag
);
161 if (ACT_ADDBAREQ
== type
) {
163 memcpy(tag
, (u8
*)&(pBA
->BaStartSeqCtrl
), 2);
167 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA
|IEEE80211_DL_BA
, skb
->data
, skb
->len
);
173 /********************************************************************************************************************
174 *function: construct DELBA frame
175 * input: u8* dst //DELBA frame's destination
176 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA
177 * TR_SELECT TxRxSelect //TX RX direction
178 * u16 ReasonCode //status code.
180 * return: sk_buff* skb //return constructed skb to xmit
181 ********************************************************************************************************************/
182 static struct sk_buff
*ieee80211_DELBA(
183 struct ieee80211_device
*ieee
,
186 TR_SELECT TxRxSelect
,
190 DELBA_PARAM_SET DelbaParamSet
;
191 struct sk_buff
*skb
= NULL
;
192 struct rtl_80211_hdr_3addr
*Delba
= NULL
;
194 //len = head len + DELBA Parameter Set(2) + Reason Code(2)
195 u16 len
= 6 + ieee
->tx_headroom
;
198 IEEE80211_DEBUG(IEEE80211_DL_TRACE
| IEEE80211_DL_BA
, "========>%s(), ReasonCode(%d) sentd to:%pM\n", __func__
, ReasonCode
, dst
);
200 memset(&DelbaParamSet
, 0, 2);
202 DelbaParamSet
.field
.Initiator
= (TxRxSelect
==TX_DIR
)?1:0;
203 DelbaParamSet
.field
.TID
= pBA
->BaParamSet
.field
.TID
;
205 skb
= dev_alloc_skb(len
+ sizeof( struct rtl_80211_hdr_3addr
)); //need to add something others? FIXME
207 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "can't alloc skb for ADDBA_REQ\n");
210 // memset(skb->data, 0, len+sizeof( struct rtl_80211_hdr_3addr));
211 skb_reserve(skb
, ieee
->tx_headroom
);
213 Delba
= skb_put(skb
, sizeof(struct rtl_80211_hdr_3addr
));
215 memcpy(Delba
->addr1
, dst
, ETH_ALEN
);
216 memcpy(Delba
->addr2
, ieee
->dev
->dev_addr
, ETH_ALEN
);
217 memcpy(Delba
->addr3
, ieee
->current_network
.bssid
, ETH_ALEN
);
218 Delba
->frame_ctl
= cpu_to_le16(IEEE80211_STYPE_MANAGE_ACT
); //action frame
220 tag
= skb_put(skb
, 6);
225 // DELBA Parameter Set
227 put_unaligned_le16(DelbaParamSet
.shortData
, tag
);
231 put_unaligned_le16(ReasonCode
, tag
);
234 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA
|IEEE80211_DL_BA
, skb
->data
, skb
->len
);
236 IEEE80211_DEBUG(IEEE80211_DL_TRACE
| IEEE80211_DL_BA
, "<=====%s()\n", __func__
);
240 /********************************************************************************************************************
241 *function: send ADDBAReq frame out
242 * input: u8* dst //ADDBAReq frame's destination
243 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA
245 * notice: If any possible, please hide pBA in ieee. And temporarily use Manage Queue as softmac_mgmt_xmit() usually does
246 ********************************************************************************************************************/
247 static void ieee80211_send_ADDBAReq(struct ieee80211_device
*ieee
,
248 u8
*dst
, PBA_RECORD pBA
)
251 skb
= ieee80211_ADDBA(ieee
, dst
, pBA
, 0, ACT_ADDBAREQ
); //construct ACT_ADDBAREQ frames so set statuscode zero.
254 softmac_mgmt_xmit(skb
, ieee
);
255 //add statistic needed here.
256 //and skb will be freed in softmac_mgmt_xmit(), so omit all dev_kfree_skb_any() outside softmac_mgmt_xmit()
260 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "alloc skb error in function %s()\n", __func__
);
264 /********************************************************************************************************************
265 *function: send ADDBARSP frame out
266 * input: u8* dst //DELBA frame's destination
267 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA
268 * u16 StatusCode //RSP StatusCode
270 * notice: If any possible, please hide pBA in ieee. And temporarily use Manage Queue as softmac_mgmt_xmit() usually does
271 ********************************************************************************************************************/
272 static void ieee80211_send_ADDBARsp(struct ieee80211_device
*ieee
, u8
*dst
,
273 PBA_RECORD pBA
, u16 StatusCode
)
276 skb
= ieee80211_ADDBA(ieee
, dst
, pBA
, StatusCode
, ACT_ADDBARSP
); //construct ACT_ADDBARSP frames
278 softmac_mgmt_xmit(skb
, ieee
);
282 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "alloc skb error in function %s()\n", __func__
);
288 /********************************************************************************************************************
289 *function: send ADDBARSP frame out
290 * input: u8* dst //DELBA frame's destination
291 * PBA_RECORD pBA //BA_RECORD entry which stores the necessary information for BA
292 * TR_SELECT TxRxSelect //TX or RX
293 * u16 ReasonCode //DEL ReasonCode
295 * notice: If any possible, please hide pBA in ieee. And temporarily use Manage Queue as softmac_mgmt_xmit() usually does
296 ********************************************************************************************************************/
298 static void ieee80211_send_DELBA(struct ieee80211_device
*ieee
, u8
*dst
,
299 PBA_RECORD pBA
, TR_SELECT TxRxSelect
,
303 skb
= ieee80211_DELBA(ieee
, dst
, pBA
, TxRxSelect
, ReasonCode
); //construct ACT_ADDBARSP frames
305 softmac_mgmt_xmit(skb
, ieee
);
309 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "alloc skb error in function %s()\n", __func__
);
313 /********************************************************************************************************************
314 *function: RX ADDBAReq
315 * input: struct sk_buff * skb //incoming ADDBAReq skb.
316 * return: 0(pass), other(fail)
317 * notice: As this function need support of QOS, I comment some code out. And when qos is ready, this code need to be support.
318 ********************************************************************************************************************/
319 int ieee80211_rx_ADDBAReq(struct ieee80211_device
*ieee
, struct sk_buff
*skb
)
321 struct rtl_80211_hdr_3addr
*req
= NULL
;
323 u8
*dst
= NULL
, *pDialogToken
= NULL
, *tag
= NULL
;
324 PBA_RECORD pBA
= NULL
;
325 PBA_PARAM_SET pBaParamSet
= NULL
;
326 u16
*pBaTimeoutVal
= NULL
;
327 PSEQUENCE_CONTROL pBaStartSeqCtrl
= NULL
;
328 PRX_TS_RECORD pTS
= NULL
;
330 if (skb
->len
< sizeof(struct rtl_80211_hdr_3addr
) + 9) {
331 IEEE80211_DEBUG(IEEE80211_DL_ERR
,
332 " Invalid skb len in BAREQ(%d / %zu)\n",
334 (sizeof(struct rtl_80211_hdr_3addr
) + 9));
338 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA
|IEEE80211_DL_BA
, skb
->data
, skb
->len
);
340 req
= (struct rtl_80211_hdr_3addr
*) skb
->data
;
342 dst
= &req
->addr2
[0];
343 tag
+= sizeof(struct rtl_80211_hdr_3addr
);
344 pDialogToken
= tag
+ 2; //category+action
345 pBaParamSet
= (PBA_PARAM_SET
)(tag
+ 3); //+DialogToken
346 pBaTimeoutVal
= (u16
*)(tag
+ 5);
347 pBaStartSeqCtrl
= (PSEQUENCE_CONTROL
)(req
+ 7);
349 printk(KERN_INFO
"====================>rx ADDBAREQ from :%pM\n", dst
);
350 //some other capability is not ready now.
351 if ((ieee
->current_network
.qos_data
.active
== 0) ||
352 (!ieee
->pHTInfo
->bCurrentHTSupport
)) //||
353 // (!ieee->pStaQos->bEnableRxImmBA) )
355 rc
= ADDBA_STATUS_REFUSED
;
356 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "Failed to reply on ADDBA_REQ as some capability is not ready(%d, %d)\n", ieee
->current_network
.qos_data
.active
, ieee
->pHTInfo
->bCurrentHTSupport
);
357 goto OnADDBAReq_Fail
;
359 // Search for related traffic stream.
360 // If there is no matched TS, reject the ADDBA request.
363 (PTS_COMMON_INFO
*)(&pTS
),
365 (u8
)(pBaParamSet
->field
.TID
),
368 rc
= ADDBA_STATUS_REFUSED
;
369 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "can't get TS in %s()\n", __func__
);
370 goto OnADDBAReq_Fail
;
372 pBA
= &pTS
->RxAdmittedBARecord
;
373 // To Determine the ADDBA Req content
374 // We can do much more check here, including BufferSize, AMSDU_Support, Policy, StartSeqCtrl...
375 // I want to check StartSeqCtrl to make sure when we start aggregation!!!
377 if (pBaParamSet
->field
.BAPolicy
== BA_POLICY_DELAYED
) {
378 rc
= ADDBA_STATUS_INVALID_PARAM
;
379 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "BA Policy is not correct in %s()\n", __func__
);
380 goto OnADDBAReq_Fail
;
382 // Admit the ADDBA Request
384 DeActivateBAEntry(ieee
, pBA
);
385 pBA
->DialogToken
= *pDialogToken
;
386 pBA
->BaParamSet
= *pBaParamSet
;
387 pBA
->BaTimeoutValue
= *pBaTimeoutVal
;
388 pBA
->BaStartSeqCtrl
= *pBaStartSeqCtrl
;
389 //for half N mode we only aggregate 1 frame
390 if (ieee
->GetHalfNmodeSupportByAPsHandler(ieee
->dev
))
391 pBA
->BaParamSet
.field
.BufferSize
= 1;
393 pBA
->BaParamSet
.field
.BufferSize
= 32;
394 ActivateBAEntry(ieee
, pBA
, pBA
->BaTimeoutValue
);
395 ieee80211_send_ADDBARsp(ieee
, dst
, pBA
, ADDBA_STATUS_SUCCESS
);
403 BA
.BaParamSet
= *pBaParamSet
;
404 BA
.BaTimeoutValue
= *pBaTimeoutVal
;
405 BA
.DialogToken
= *pDialogToken
;
406 BA
.BaParamSet
.field
.BAPolicy
= BA_POLICY_IMMEDIATE
;
407 ieee80211_send_ADDBARsp(ieee
, dst
, &BA
, rc
);
408 return 0; //we send RSP out.
413 /********************************************************************************************************************
414 *function: RX ADDBARSP
415 * input: struct sk_buff * skb //incoming ADDBAReq skb.
416 * return: 0(pass), other(fail)
417 * notice: As this function need support of QOS, I comment some code out. And when qos is ready, this code need to be support.
418 ********************************************************************************************************************/
419 int ieee80211_rx_ADDBARsp(struct ieee80211_device
*ieee
, struct sk_buff
*skb
)
421 struct rtl_80211_hdr_3addr
*rsp
= NULL
;
422 PBA_RECORD pPendingBA
, pAdmittedBA
;
423 PTX_TS_RECORD pTS
= NULL
;
424 u8
*dst
= NULL
, *pDialogToken
= NULL
, *tag
= NULL
;
425 u16
*pStatusCode
= NULL
, *pBaTimeoutVal
= NULL
;
426 PBA_PARAM_SET pBaParamSet
= NULL
;
429 if (skb
->len
< sizeof(struct rtl_80211_hdr_3addr
) + 9) {
430 IEEE80211_DEBUG(IEEE80211_DL_ERR
,
431 " Invalid skb len in BARSP(%d / %zu)\n",
433 (sizeof(struct rtl_80211_hdr_3addr
) + 9));
436 rsp
= (struct rtl_80211_hdr_3addr
*)skb
->data
;
438 dst
= &rsp
->addr2
[0];
439 tag
+= sizeof(struct rtl_80211_hdr_3addr
);
440 pDialogToken
= tag
+ 2;
441 pStatusCode
= (u16
*)(tag
+ 3);
442 pBaParamSet
= (PBA_PARAM_SET
)(tag
+ 5);
443 pBaTimeoutVal
= (u16
*)(tag
+ 7);
445 // Check the capability
446 // Since we can always receive A-MPDU, we just check if it is under HT mode.
447 if (ieee
->current_network
.qos_data
.active
== 0 ||
448 !ieee
->pHTInfo
->bCurrentHTSupport
||
449 !ieee
->pHTInfo
->bCurrentAMPDUEnable
) {
450 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "reject to ADDBA_RSP as some capability is not ready(%d, %d, %d)\n",ieee
->current_network
.qos_data
.active
, ieee
->pHTInfo
->bCurrentHTSupport
, ieee
->pHTInfo
->bCurrentAMPDUEnable
);
451 ReasonCode
= DELBA_REASON_UNKNOWN_BA
;
452 goto OnADDBARsp_Reject
;
457 // Search for related TS.
458 // If there is no TS found, we wil reject ADDBA Rsp by sending DELBA frame.
462 (PTS_COMMON_INFO
*)(&pTS
),
464 (u8
)(pBaParamSet
->field
.TID
),
467 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "can't get TS in %s()\n", __func__
);
468 ReasonCode
= DELBA_REASON_UNKNOWN_BA
;
469 goto OnADDBARsp_Reject
;
472 pTS
->bAddBaReqInProgress
= false;
473 pPendingBA
= &pTS
->TxPendingBARecord
;
474 pAdmittedBA
= &pTS
->TxAdmittedBARecord
;
478 // Check if related BA is waiting for setup.
479 // If not, reject by sending DELBA frame.
481 if (pAdmittedBA
->bValid
) {
482 // Since BA is already setup, we ignore all other ADDBA Response.
483 IEEE80211_DEBUG(IEEE80211_DL_BA
, "OnADDBARsp(): Recv ADDBA Rsp. Drop because already admit it! \n");
486 else if((!pPendingBA
->bValid
) ||(*pDialogToken
!= pPendingBA
->DialogToken
)) {
487 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "OnADDBARsp(): Recv ADDBA Rsp. BA invalid, DELBA! \n");
488 ReasonCode
= DELBA_REASON_UNKNOWN_BA
;
489 goto OnADDBARsp_Reject
;
492 IEEE80211_DEBUG(IEEE80211_DL_BA
, "OnADDBARsp(): Recv ADDBA Rsp. BA is admitted! Status code:%X\n", *pStatusCode
);
493 DeActivateBAEntry(ieee
, pPendingBA
);
497 if(*pStatusCode
== ADDBA_STATUS_SUCCESS
) {
499 // Determine ADDBA Rsp content here.
500 // We can compare the value of BA parameter set that Peer returned and Self sent.
501 // If it is OK, then admitted. Or we can send DELBA to cancel BA mechanism.
503 if (pBaParamSet
->field
.BAPolicy
== BA_POLICY_DELAYED
) {
504 // Since this is a kind of ADDBA failed, we delay next ADDBA process.
505 pTS
->bAddBaReqDelayed
= true;
506 DeActivateBAEntry(ieee
, pAdmittedBA
);
507 ReasonCode
= DELBA_REASON_END_BA
;
508 goto OnADDBARsp_Reject
;
513 // Admitted condition
515 pAdmittedBA
->DialogToken
= *pDialogToken
;
516 pAdmittedBA
->BaTimeoutValue
= *pBaTimeoutVal
;
517 pAdmittedBA
->BaStartSeqCtrl
= pPendingBA
->BaStartSeqCtrl
;
518 pAdmittedBA
->BaParamSet
= *pBaParamSet
;
519 DeActivateBAEntry(ieee
, pAdmittedBA
);
520 ActivateBAEntry(ieee
, pAdmittedBA
, *pBaTimeoutVal
);
523 // Delay next ADDBA process.
524 pTS
->bAddBaReqDelayed
= true;
533 BA
.BaParamSet
= *pBaParamSet
;
534 ieee80211_send_DELBA(ieee
, dst
, &BA
, TX_DIR
, ReasonCode
);
540 /********************************************************************************************************************
542 * input: struct sk_buff * skb //incoming ADDBAReq skb.
543 * return: 0(pass), other(fail)
544 * notice: As this function need support of QOS, I comment some code out. And when qos is ready, this code need to be support.
545 ********************************************************************************************************************/
546 int ieee80211_rx_DELBA(struct ieee80211_device
*ieee
, struct sk_buff
*skb
)
548 struct rtl_80211_hdr_3addr
*delba
= NULL
;
549 PDELBA_PARAM_SET pDelBaParamSet
= NULL
;
552 if (skb
->len
< sizeof(struct rtl_80211_hdr_3addr
) + 6) {
553 IEEE80211_DEBUG(IEEE80211_DL_ERR
,
554 " Invalid skb len in DELBA(%d / %zu)\n",
556 (sizeof(struct rtl_80211_hdr_3addr
) + 6));
560 if (ieee
->current_network
.qos_data
.active
== 0 ||
561 !ieee
->pHTInfo
->bCurrentHTSupport
) {
562 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "received DELBA while QOS or HT is not supported(%d, %d)\n",ieee
->current_network
.qos_data
.active
, ieee
->pHTInfo
->bCurrentHTSupport
);
566 IEEE80211_DEBUG_DATA(IEEE80211_DL_DATA
|IEEE80211_DL_BA
, skb
->data
, skb
->len
);
567 delba
= (struct rtl_80211_hdr_3addr
*)skb
->data
;
568 dst
= &delba
->addr2
[0];
569 pDelBaParamSet
= (PDELBA_PARAM_SET
)&delba
->payload
[2];
571 if(pDelBaParamSet
->field
.Initiator
== 1) {
576 (PTS_COMMON_INFO
*)&pRxTs
,
578 (u8
)pDelBaParamSet
->field
.TID
,
581 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "can't get TS for RXTS in %s()\n", __func__
);
585 RxTsDeleteBA(ieee
, pRxTs
);
592 (PTS_COMMON_INFO
*)&pTxTs
,
594 (u8
)pDelBaParamSet
->field
.TID
,
597 IEEE80211_DEBUG(IEEE80211_DL_ERR
, "can't get TS for TXTS in %s()\n", __func__
);
601 pTxTs
->bUsingBa
= false;
602 pTxTs
->bAddBaReqInProgress
= false;
603 pTxTs
->bAddBaReqDelayed
= false;
604 del_timer_sync(&pTxTs
->TsAddBaTimer
);
605 //PlatformCancelTimer(Adapter, &pTxTs->TsAddBaTimer);
606 TxTsDeleteBA(ieee
, pTxTs
);
612 // ADDBA initiate. This can only be called by TX side.
616 struct ieee80211_device
*ieee
,
622 PBA_RECORD pBA
= &pTS
->TxPendingBARecord
;
624 if (pBA
->bValid
&& !bOverwritePending
)
627 // Set parameters to "Pending" variable set
628 DeActivateBAEntry(ieee
, pBA
);
630 pBA
->DialogToken
++; // DialogToken: Only keep the latest dialog token
631 pBA
->BaParamSet
.field
.AMSDU_Support
= 0; // Do not support A-MSDU with A-MPDU now!!
632 pBA
->BaParamSet
.field
.BAPolicy
= Policy
; // Policy: Delayed or Immediate
633 pBA
->BaParamSet
.field
.TID
= pTS
->TsCommonInfo
.TSpec
.f
.TSInfo
.field
.ucTSID
; // TID
634 // BufferSize: This need to be set according to A-MPDU vector
635 pBA
->BaParamSet
.field
.BufferSize
= 32; // BufferSize: This need to be set according to A-MPDU vector
636 pBA
->BaTimeoutValue
= 0; // Timeout value: Set 0 to disable Timer
637 pBA
->BaStartSeqCtrl
.field
.SeqNum
= (pTS
->TxCurSeq
+ 3) % 4096; // Block Ack will start after 3 packets later.
639 ActivateBAEntry(ieee
, pBA
, BA_SETUP_TIMEOUT
);
641 ieee80211_send_ADDBAReq(ieee
, pTS
->TsCommonInfo
.Addr
, pBA
);
645 TsInitDelBA( struct ieee80211_device
*ieee
, PTS_COMMON_INFO pTsCommonInfo
, TR_SELECT TxRxSelect
)
648 if(TxRxSelect
== TX_DIR
) {
649 PTX_TS_RECORD pTxTs
= (PTX_TS_RECORD
)pTsCommonInfo
;
651 if(TxTsDeleteBA(ieee
, pTxTs
))
652 ieee80211_send_DELBA(
655 (pTxTs
->TxAdmittedBARecord
.bValid
)?(&pTxTs
->TxAdmittedBARecord
):(&pTxTs
->TxPendingBARecord
),
657 DELBA_REASON_END_BA
);
659 else if(TxRxSelect
== RX_DIR
) {
660 PRX_TS_RECORD pRxTs
= (PRX_TS_RECORD
)pTsCommonInfo
;
661 if(RxTsDeleteBA(ieee
, pRxTs
))
662 ieee80211_send_DELBA(
665 &pRxTs
->RxAdmittedBARecord
,
667 DELBA_REASON_END_BA
);
670 /********************************************************************************************************************
671 *function: BA setup timer
672 * input: unsigned long data //acturally we send TX_TS_RECORD or RX_TS_RECORD to these timer
675 ********************************************************************************************************************/
676 void BaSetupTimeOut(unsigned long data
)
678 PTX_TS_RECORD pTxTs
= (PTX_TS_RECORD
)data
;
680 pTxTs
->bAddBaReqInProgress
= false;
681 pTxTs
->bAddBaReqDelayed
= true;
682 pTxTs
->TxPendingBARecord
.bValid
= false;
685 void TxBaInactTimeout(unsigned long data
)
687 PTX_TS_RECORD pTxTs
= (PTX_TS_RECORD
)data
;
688 struct ieee80211_device
*ieee
= container_of(pTxTs
, struct ieee80211_device
, TxTsRecord
[pTxTs
->num
]);
689 TxTsDeleteBA(ieee
, pTxTs
);
690 ieee80211_send_DELBA(
692 pTxTs
->TsCommonInfo
.Addr
,
693 &pTxTs
->TxAdmittedBARecord
,
695 DELBA_REASON_TIMEOUT
);
698 void RxBaInactTimeout(unsigned long data
)
700 PRX_TS_RECORD pRxTs
= (PRX_TS_RECORD
)data
;
701 struct ieee80211_device
*ieee
= container_of(pRxTs
, struct ieee80211_device
, RxTsRecord
[pRxTs
->num
]);
703 RxTsDeleteBA(ieee
, pRxTs
);
704 ieee80211_send_DELBA(
706 pRxTs
->TsCommonInfo
.Addr
,
707 &pRxTs
->RxAdmittedBARecord
,
709 DELBA_REASON_TIMEOUT
);