1 /******************************************************************************
3 * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved.
5 * This program is free software; you can redistribute it and/or modify it
6 * under the terms of version 2 of the GNU General Public License as
7 * published by the Free Software Foundation.
9 * This program is distributed in the hope that it will be useful, but WITHOUT
10 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
11 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
14 ******************************************************************************/
17 #include <linux/ieee80211.h>
19 #include <osdep_service.h>
20 #include <drv_types.h>
21 #include <recv_osdep.h>
22 #include <mlme_osdep.h>
25 #include <linux/vmalloc.h>
27 #define ETHERNET_HEADER_SIZE 14 /* Ethernet Header Length */
28 #define LLC_HEADER_SIZE 6 /* LLC Header Length */
30 static u8 SNAP_ETH_TYPE_IPX
[2] = {0x81, 0x37};
31 static u8 SNAP_ETH_TYPE_APPLETALK_AARP
[2] = {0x80, 0xf3};
33 /* Bridge-Tunnel header (for EtherTypes ETH_P_AARP and ETH_P_IPX) */
34 static u8 rtw_bridge_tunnel_header
[] = {
35 0xaa, 0xaa, 0x03, 0x00, 0x00, 0xf8
38 static u8 rtw_rfc1042_header
[] = {
39 0xaa, 0xaa, 0x03, 0x00, 0x00, 0x00
42 void rtw_signal_stat_timer_hdl(unsigned long data
);
44 void _rtw_init_sta_recv_priv(struct sta_recv_priv
*psta_recvpriv
)
47 memset((u8
*)psta_recvpriv
, 0, sizeof(struct sta_recv_priv
));
49 spin_lock_init(&psta_recvpriv
->lock
);
51 _rtw_init_queue(&psta_recvpriv
->defrag_q
);
55 int _rtw_init_recv_priv(struct recv_priv
*precvpriv
, struct adapter
*padapter
)
59 struct recv_frame
*precvframe
;
63 _rtw_init_queue(&precvpriv
->free_recv_queue
);
64 _rtw_init_queue(&precvpriv
->recv_pending_queue
);
65 _rtw_init_queue(&precvpriv
->uc_swdec_pending_queue
);
67 precvpriv
->adapter
= padapter
;
69 precvpriv
->free_recvframe_cnt
= NR_RECVFRAME
;
71 precvpriv
->pallocated_frame_buf
= vzalloc(NR_RECVFRAME
* sizeof(struct recv_frame
) + RXFRAME_ALIGN_SZ
);
73 if (!precvpriv
->pallocated_frame_buf
)
76 precvpriv
->precv_frame_buf
= (u8
*)N_BYTE_ALIGMENT((size_t)(precvpriv
->pallocated_frame_buf
), RXFRAME_ALIGN_SZ
);
78 precvframe
= (struct recv_frame
*)precvpriv
->precv_frame_buf
;
80 for (i
= 0; i
< NR_RECVFRAME
; i
++) {
81 INIT_LIST_HEAD(&(precvframe
->list
));
83 list_add_tail(&(precvframe
->list
),
84 &(precvpriv
->free_recv_queue
.queue
));
86 rtw_os_recv_resource_alloc(precvframe
);
90 precvframe
->adapter
= padapter
;
93 precvpriv
->rx_pending_cnt
= 1;
95 res
= rtw_hal_init_recv_priv(padapter
);
97 setup_timer(&precvpriv
->signal_stat_timer
,
98 rtw_signal_stat_timer_hdl
,
99 (unsigned long)padapter
);
101 precvpriv
->signal_stat_sampling_interval
= 1000; /* ms */
103 rtw_set_signal_stat_timer(precvpriv
);
108 void _rtw_free_recv_priv(struct recv_priv
*precvpriv
)
110 struct adapter
*padapter
= precvpriv
->adapter
;
112 rtw_free_uc_swdec_pending_queue(padapter
);
114 vfree(precvpriv
->pallocated_frame_buf
);
116 rtw_hal_free_recv_priv(padapter
);
120 struct recv_frame
*_rtw_alloc_recvframe(struct __queue
*pfree_recv_queue
)
122 struct recv_frame
*hdr
;
123 struct adapter
*padapter
;
124 struct recv_priv
*precvpriv
;
126 hdr
= list_first_entry_or_null(&pfree_recv_queue
->queue
,
127 struct recv_frame
, list
);
129 list_del_init(&hdr
->list
);
130 padapter
= hdr
->adapter
;
132 precvpriv
= &padapter
->recvpriv
;
133 if (pfree_recv_queue
== &precvpriv
->free_recv_queue
)
134 precvpriv
->free_recvframe_cnt
--;
141 struct recv_frame
*rtw_alloc_recvframe(struct __queue
*pfree_recv_queue
)
143 struct recv_frame
*precvframe
;
145 spin_lock_bh(&pfree_recv_queue
->lock
);
147 precvframe
= _rtw_alloc_recvframe(pfree_recv_queue
);
149 spin_unlock_bh(&pfree_recv_queue
->lock
);
154 int rtw_free_recvframe(struct recv_frame
*precvframe
,
155 struct __queue
*pfree_recv_queue
)
157 struct adapter
*padapter
;
158 struct recv_priv
*precvpriv
;
162 padapter
= precvframe
->adapter
;
163 precvpriv
= &padapter
->recvpriv
;
164 if (precvframe
->pkt
) {
165 dev_kfree_skb_any(precvframe
->pkt
);/* free skb by driver */
166 precvframe
->pkt
= NULL
;
169 spin_lock_bh(&pfree_recv_queue
->lock
);
171 list_del_init(&(precvframe
->list
));
175 list_add_tail(&(precvframe
->list
), get_list_head(pfree_recv_queue
));
177 if (padapter
!= NULL
) {
178 if (pfree_recv_queue
== &precvpriv
->free_recv_queue
)
179 precvpriv
->free_recvframe_cnt
++;
182 spin_unlock_bh(&pfree_recv_queue
->lock
);
187 int _rtw_enqueue_recvframe(struct recv_frame
*precvframe
, struct __queue
*queue
)
189 struct adapter
*padapter
= precvframe
->adapter
;
190 struct recv_priv
*precvpriv
= &padapter
->recvpriv
;
192 list_del_init(&(precvframe
->list
));
193 list_add_tail(&(precvframe
->list
), get_list_head(queue
));
195 if (padapter
!= NULL
) {
196 if (queue
== &precvpriv
->free_recv_queue
)
197 precvpriv
->free_recvframe_cnt
++;
203 int rtw_enqueue_recvframe(struct recv_frame
*precvframe
, struct __queue
*queue
)
207 spin_lock_bh(&queue
->lock
);
208 ret
= _rtw_enqueue_recvframe(precvframe
, queue
);
209 spin_unlock_bh(&queue
->lock
);
215 caller : defrag ; recvframe_chk_defrag in recv_thread (passive)
216 pframequeue: defrag_queue : will be accessed in recv_thread (passive)
218 using spinlock to protect
222 void rtw_free_recvframe_queue(struct __queue
*pframequeue
, struct __queue
*pfree_recv_queue
)
224 struct recv_frame
*hdr
;
225 struct list_head
*plist
, *phead
;
227 spin_lock(&pframequeue
->lock
);
229 phead
= get_list_head(pframequeue
);
232 while (phead
!= plist
) {
233 hdr
= container_of(plist
, struct recv_frame
, list
);
237 rtw_free_recvframe(hdr
, pfree_recv_queue
);
240 spin_unlock(&pframequeue
->lock
);
244 u32
rtw_free_uc_swdec_pending_queue(struct adapter
*adapter
)
247 struct recv_frame
*pending_frame
;
248 while ((pending_frame
= rtw_alloc_recvframe(&adapter
->recvpriv
.uc_swdec_pending_queue
))) {
249 rtw_free_recvframe(pending_frame
, &adapter
->recvpriv
.free_recv_queue
);
250 DBG_88E("%s: dequeue uc_swdec_pending_queue\n", __func__
);
257 static int recvframe_chkmic(struct adapter
*adapter
,
258 struct recv_frame
*precvframe
)
260 int i
, res
= _SUCCESS
;
263 u8 bmic_err
= false, brpt_micerror
= true;
264 u8
*pframe
, *payload
, *pframemic
;
266 struct sta_info
*stainfo
;
267 struct rx_pkt_attrib
*prxattrib
= &precvframe
->attrib
;
268 struct security_priv
*psecuritypriv
= &adapter
->securitypriv
;
270 struct mlme_ext_priv
*pmlmeext
= &adapter
->mlmeextpriv
;
271 struct mlme_ext_info
*pmlmeinfo
= &(pmlmeext
->mlmext_info
);
273 stainfo
= rtw_get_stainfo(&adapter
->stapriv
, &prxattrib
->ta
[0]);
275 if (prxattrib
->encrypt
== _TKIP_
) {
276 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("\n recvframe_chkmic:prxattrib->encrypt==_TKIP_\n"));
277 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("\n recvframe_chkmic:da=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
278 prxattrib
->ra
[0], prxattrib
->ra
[1], prxattrib
->ra
[2], prxattrib
->ra
[3], prxattrib
->ra
[4], prxattrib
->ra
[5]));
280 /* calculate mic code */
281 if (stainfo
!= NULL
) {
282 if (IS_MCAST(prxattrib
->ra
)) {
283 if (!psecuritypriv
) {
285 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n"));
286 DBG_88E("\n recvframe_chkmic:didn't install group key!!!!!!!!!!\n");
289 mickey
= &psecuritypriv
->dot118021XGrprxmickey
[prxattrib
->key_index
].skey
[0];
291 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("\n recvframe_chkmic: bcmc key\n"));
293 mickey
= &stainfo
->dot11tkiprxmickey
.skey
[0];
294 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("\n recvframe_chkmic: unicast key\n"));
297 /* icv_len included the mic code */
298 datalen
= precvframe
->len
-prxattrib
->hdrlen
-
299 prxattrib
->iv_len
-prxattrib
->icv_len
-8;
300 pframe
= precvframe
->rx_data
;
301 payload
= pframe
+prxattrib
->hdrlen
+prxattrib
->iv_len
;
303 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("\n prxattrib->iv_len=%d prxattrib->icv_len=%d\n", prxattrib
->iv_len
, prxattrib
->icv_len
));
304 rtw_seccalctkipmic(mickey
, pframe
, payload
, datalen
, &miccode
[0],
305 (unsigned char)prxattrib
->priority
); /* care the length of the data */
307 pframemic
= payload
+datalen
;
311 for (i
= 0; i
< 8; i
++) {
312 if (miccode
[i
] != *(pframemic
+i
)) {
313 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
,
314 ("recvframe_chkmic:miccode[%d](%02x)!=*(pframemic+%d)(%02x) ",
315 i
, miccode
[i
], i
, *(pframemic
+i
)));
321 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
,
322 ("\n *(pframemic-8)-*(pframemic-1)=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
323 *(pframemic
-8), *(pframemic
-7), *(pframemic
-6),
324 *(pframemic
-5), *(pframemic
-4), *(pframemic
-3),
325 *(pframemic
-2), *(pframemic
-1)));
326 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
,
327 ("\n *(pframemic-16)-*(pframemic-9)=0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x\n",
328 *(pframemic
-16), *(pframemic
-15), *(pframemic
-14),
329 *(pframemic
-13), *(pframemic
-12), *(pframemic
-11),
330 *(pframemic
-10), *(pframemic
-9)));
333 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
,
334 ("\n ======demp packet (len=%d)======\n",
336 for (i
= 0; i
< precvframe
->len
; i
+= 8) {
337 RT_TRACE(_module_rtl871x_recv_c_
,
339 ("0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x:0x%02x",
340 *(precvframe
->rx_data
+i
),
341 *(precvframe
->rx_data
+i
+1),
342 *(precvframe
->rx_data
+i
+2),
343 *(precvframe
->rx_data
+i
+3),
344 *(precvframe
->rx_data
+i
+4),
345 *(precvframe
->rx_data
+i
+5),
346 *(precvframe
->rx_data
+i
+6),
347 *(precvframe
->rx_data
+i
+7)));
349 RT_TRACE(_module_rtl871x_recv_c_
,
351 ("\n ====== demp packet end [len=%d]======\n",
353 RT_TRACE(_module_rtl871x_recv_c_
,
359 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
,
360 ("ra=0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x psecuritypriv->binstallGrpkey=%d ",
361 prxattrib
->ra
[0], prxattrib
->ra
[1], prxattrib
->ra
[2],
362 prxattrib
->ra
[3], prxattrib
->ra
[4], prxattrib
->ra
[5], psecuritypriv
->binstallGrpkey
));
364 /* double check key_index for some timing issue , */
365 /* cannot compare with psecuritypriv->dot118021XGrpKeyid also cause timing issue */
366 if ((IS_MCAST(prxattrib
->ra
) == true) && (prxattrib
->key_index
!= pmlmeinfo
->key_index
))
367 brpt_micerror
= false;
369 if ((prxattrib
->bdecrypted
) && (brpt_micerror
)) {
370 rtw_handle_tkip_mic_err(adapter
, (u8
)IS_MCAST(prxattrib
->ra
));
371 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, (" mic error :prxattrib->bdecrypted=%d ", prxattrib
->bdecrypted
));
372 DBG_88E(" mic error :prxattrib->bdecrypted=%d\n", prxattrib
->bdecrypted
);
374 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, (" mic error :prxattrib->bdecrypted=%d ", prxattrib
->bdecrypted
));
375 DBG_88E(" mic error :prxattrib->bdecrypted=%d\n", prxattrib
->bdecrypted
);
380 if ((!psecuritypriv
->bcheck_grpkey
) && (IS_MCAST(prxattrib
->ra
))) {
381 psecuritypriv
->bcheck_grpkey
= true;
382 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("psecuritypriv->bcheck_grpkey = true"));
386 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("recvframe_chkmic: rtw_get_stainfo==NULL!!!\n"));
389 recvframe_pull_tail(precvframe
, 8);
397 /* decrypt and set the ivlen, icvlen of the recv_frame */
398 static struct recv_frame
*decryptor(struct adapter
*padapter
,
399 struct recv_frame
*precv_frame
)
401 struct rx_pkt_attrib
*prxattrib
= &precv_frame
->attrib
;
402 struct security_priv
*psecuritypriv
= &padapter
->securitypriv
;
403 struct recv_frame
*return_packet
= precv_frame
;
406 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("prxstat->decrypted=%x prxattrib->encrypt=0x%03x\n", prxattrib
->bdecrypted
, prxattrib
->encrypt
));
408 if (prxattrib
->encrypt
> 0) {
409 u8
*iv
= precv_frame
->rx_data
+prxattrib
->hdrlen
;
410 prxattrib
->key_index
= (((iv
[3])>>6)&0x3);
412 if (prxattrib
->key_index
> WEP_KEYS
) {
413 DBG_88E("prxattrib->key_index(%d)>WEP_KEYS\n", prxattrib
->key_index
);
415 switch (prxattrib
->encrypt
) {
418 prxattrib
->key_index
= psecuritypriv
->dot11PrivacyKeyIndex
;
423 prxattrib
->key_index
= psecuritypriv
->dot118021XGrpKeyid
;
429 if ((prxattrib
->encrypt
> 0) && ((prxattrib
->bdecrypted
== 0) || (psecuritypriv
->sw_decrypt
))) {
430 psecuritypriv
->hw_decrypted
= false;
432 switch (prxattrib
->encrypt
) {
435 rtw_wep_decrypt(padapter
, (u8
*)precv_frame
);
438 res
= rtw_tkip_decrypt(padapter
, (u8
*)precv_frame
);
441 res
= rtw_aes_decrypt(padapter
, (u8
*)precv_frame
);
446 } else if (prxattrib
->bdecrypted
== 1 && prxattrib
->encrypt
> 0 &&
447 (psecuritypriv
->busetkipkey
== 1 || prxattrib
->encrypt
!= _TKIP_
))
448 psecuritypriv
->hw_decrypted
= true;
451 rtw_free_recvframe(return_packet
, &padapter
->recvpriv
.free_recv_queue
);
452 return_packet
= NULL
;
455 return return_packet
;
458 /* set the security information in the recv_frame */
459 static struct recv_frame
*portctrl(struct adapter
*adapter
,
460 struct recv_frame
*precv_frame
)
464 struct recv_frame
*pfhdr
;
465 struct sta_info
*psta
;
466 struct sta_priv
*pstapriv
;
467 struct recv_frame
*prtnframe
;
469 u16 eapol_type
= 0x888e;/* for Funia BD's WPA issue */
470 struct rx_pkt_attrib
*pattrib
;
473 pstapriv
= &adapter
->stapriv
;
475 auth_alg
= adapter
->securitypriv
.dot11AuthAlgrthm
;
477 ptr
= precv_frame
->rx_data
;
479 pattrib
= &pfhdr
->attrib
;
480 psta_addr
= pattrib
->ta
;
481 psta
= rtw_get_stainfo(pstapriv
, psta_addr
);
485 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("########portctrl:adapter->securitypriv.dot11AuthAlgrthm=%d\n", adapter
->securitypriv
.dot11AuthAlgrthm
));
489 ptr
= ptr
+ pfhdr
->attrib
.hdrlen
+ LLC_HEADER_SIZE
;
490 memcpy(&be_tmp
, ptr
, 2);
491 ether_type
= ntohs(be_tmp
);
493 if ((psta
!= NULL
) && (psta
->ieee8021x_blocked
)) {
495 /* only accept EAPOL frame */
496 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("########portctrl:psta->ieee8021x_blocked==1\n"));
498 if (ether_type
== eapol_type
) {
499 prtnframe
= precv_frame
;
501 /* free this frame */
502 rtw_free_recvframe(precv_frame
, &adapter
->recvpriv
.free_recv_queue
);
507 /* check decryption status, and decrypt the frame if needed */
508 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("########portctrl:psta->ieee8021x_blocked==0\n"));
509 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
,
510 ("portctrl:precv_frame->hdr.attrib.privacy=%x\n",
511 precv_frame
->attrib
.privacy
));
513 if (pattrib
->bdecrypted
== 0)
514 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("portctrl:prxstat->decrypted=%x\n", pattrib
->bdecrypted
));
516 prtnframe
= precv_frame
;
517 /* check is the EAPOL frame or not (Rekey) */
518 if (ether_type
== eapol_type
) {
519 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
, ("########portctrl:ether_type==0x888e\n"));
522 prtnframe
= precv_frame
;
524 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("########portctrl:ether_type=0x%04x\n", ether_type
));
528 prtnframe
= precv_frame
;
534 static int recv_decache(struct recv_frame
*precv_frame
, u8 bretry
,
535 struct stainfo_rxcache
*prxcache
)
537 int tid
= precv_frame
->attrib
.priority
;
539 u16 seq_ctrl
= ((precv_frame
->attrib
.seq_num
&0xffff) << 4) |
540 (precv_frame
->attrib
.frag_num
& 0xf);
543 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
, ("recv_decache, (tid>15)! seq_ctrl=0x%x, tid=0x%x\n", seq_ctrl
, tid
));
548 if (1) {/* if (bretry) */
549 if (seq_ctrl
== prxcache
->tid_rxseq
[tid
]) {
550 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
, ("recv_decache, seq_ctrl=0x%x, tid=0x%x, tid_rxseq=0x%x\n", seq_ctrl
, tid
, prxcache
->tid_rxseq
[tid
]));
556 prxcache
->tid_rxseq
[tid
] = seq_ctrl
;
561 static void process_pwrbit_data(struct adapter
*padapter
,
562 struct recv_frame
*precv_frame
)
564 #ifdef CONFIG_88EU_AP_MODE
565 unsigned char pwrbit
;
566 u8
*ptr
= precv_frame
->rx_data
;
567 struct rx_pkt_attrib
*pattrib
= &precv_frame
->attrib
;
568 struct sta_priv
*pstapriv
= &padapter
->stapriv
;
569 struct sta_info
*psta
= NULL
;
571 psta
= rtw_get_stainfo(pstapriv
, pattrib
->src
);
573 pwrbit
= GetPwrMgt(ptr
);
577 if (!(psta
->state
& WIFI_SLEEP_STATE
))
578 stop_sta_xmit(padapter
, psta
);
580 if (psta
->state
& WIFI_SLEEP_STATE
)
581 wakeup_sta_to_xmit(padapter
, psta
);
588 static void process_wmmps_data(struct adapter
*padapter
,
589 struct recv_frame
*precv_frame
)
591 #ifdef CONFIG_88EU_AP_MODE
592 struct rx_pkt_attrib
*pattrib
= &precv_frame
->attrib
;
593 struct sta_priv
*pstapriv
= &padapter
->stapriv
;
594 struct sta_info
*psta
= NULL
;
596 psta
= rtw_get_stainfo(pstapriv
, pattrib
->src
);
601 if (!psta
->qos_option
)
604 if (!(psta
->qos_info
&0xf))
607 if (psta
->state
&WIFI_SLEEP_STATE
) {
610 switch (pattrib
->priority
) {
613 wmmps_ac
= psta
->uapsd_bk
&BIT(1);
617 wmmps_ac
= psta
->uapsd_vi
&BIT(1);
621 wmmps_ac
= psta
->uapsd_vo
&BIT(1);
626 wmmps_ac
= psta
->uapsd_be
&BIT(1);
631 if (psta
->sleepq_ac_len
> 0) {
632 /* process received triggered frame */
633 xmit_delivery_enabled_frames(padapter
, psta
);
635 /* issue one qos null frame with More data bit = 0 and the EOSP bit set (= 1) */
636 issue_qos_nulldata(padapter
, psta
->hwaddr
, (u16
)pattrib
->priority
, 0, 0);
644 static void count_rx_stats(struct adapter
*padapter
,
645 struct recv_frame
*prframe
,
646 struct sta_info
*sta
)
649 struct sta_info
*psta
= NULL
;
650 struct stainfo_stats
*pstats
= NULL
;
651 struct rx_pkt_attrib
*pattrib
= &prframe
->attrib
;
652 struct recv_priv
*precvpriv
= &padapter
->recvpriv
;
655 precvpriv
->rx_bytes
+= sz
;
657 padapter
->mlmepriv
.LinkDetectInfo
.NumRxOkInPeriod
++;
659 if ((!MacAddr_isBcst(pattrib
->dst
)) && (!IS_MCAST(pattrib
->dst
)))
660 padapter
->mlmepriv
.LinkDetectInfo
.NumRxUnicastOkInPeriod
++;
665 psta
= prframe
->psta
;
668 pstats
= &psta
->sta_stats
;
670 pstats
->rx_data_pkts
++;
671 pstats
->rx_bytes
+= sz
;
675 int sta2sta_data_frame(
676 struct adapter
*adapter
,
677 struct recv_frame
*precv_frame
,
678 struct sta_info
**psta
681 int sta2sta_data_frame(struct adapter
*adapter
, struct recv_frame
*precv_frame
,
682 struct sta_info
**psta
)
684 u8
*ptr
= precv_frame
->rx_data
;
686 struct rx_pkt_attrib
*pattrib
= &precv_frame
->attrib
;
687 struct sta_priv
*pstapriv
= &adapter
->stapriv
;
688 struct mlme_priv
*pmlmepriv
= &adapter
->mlmepriv
;
689 u8
*mybssid
= get_bssid(pmlmepriv
);
690 u8
*myhwaddr
= myid(&adapter
->eeprompriv
);
692 int bmcast
= IS_MCAST(pattrib
->dst
);
694 if ((check_fwstate(pmlmepriv
, WIFI_ADHOC_STATE
) == true) ||
695 (check_fwstate(pmlmepriv
, WIFI_ADHOC_MASTER_STATE
) == true)) {
696 /* filter packets that SA is myself or multicast or broadcast */
697 if (!memcmp(myhwaddr
, pattrib
->src
, ETH_ALEN
)) {
698 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, (" SA==myself\n"));
703 if ((memcmp(myhwaddr
, pattrib
->dst
, ETH_ALEN
)) && (!bmcast
)) {
708 if (!memcmp(pattrib
->bssid
, "\x0\x0\x0\x0\x0\x0", ETH_ALEN
) ||
709 !memcmp(mybssid
, "\x0\x0\x0\x0\x0\x0", ETH_ALEN
) ||
710 memcmp(pattrib
->bssid
, mybssid
, ETH_ALEN
)) {
715 sta_addr
= pattrib
->src
;
716 } else if (check_fwstate(pmlmepriv
, WIFI_STATION_STATE
)) {
717 /* For Station mode, sa and bssid should always be BSSID, and DA is my mac-address */
718 if (memcmp(pattrib
->bssid
, pattrib
->src
, ETH_ALEN
)) {
719 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("bssid!=TA under STATION_MODE; drop pkt\n"));
723 sta_addr
= pattrib
->bssid
;
724 } else if (check_fwstate(pmlmepriv
, WIFI_AP_STATE
)) {
726 /* For AP mode, if DA == MCAST, then BSSID should be also MCAST */
727 if (!IS_MCAST(pattrib
->bssid
)) {
731 } else { /* not mc-frame */
732 /* For AP mode, if DA is non-MCAST, then it must be BSSID, and bssid == BSSID */
733 if (memcmp(pattrib
->bssid
, pattrib
->dst
, ETH_ALEN
)) {
738 sta_addr
= pattrib
->src
;
740 } else if (check_fwstate(pmlmepriv
, WIFI_MP_STATE
)) {
741 memcpy(pattrib
->dst
, GetAddr1Ptr(ptr
), ETH_ALEN
);
742 memcpy(pattrib
->src
, GetAddr2Ptr(ptr
), ETH_ALEN
);
743 memcpy(pattrib
->bssid
, GetAddr3Ptr(ptr
), ETH_ALEN
);
744 memcpy(pattrib
->ra
, pattrib
->dst
, ETH_ALEN
);
745 memcpy(pattrib
->ta
, pattrib
->src
, ETH_ALEN
);
753 *psta
= rtw_get_bcmc_stainfo(adapter
);
755 *psta
= rtw_get_stainfo(pstapriv
, sta_addr
); /* get ap_info */
758 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("can't get psta under sta2sta_data_frame ; drop pkt\n"));
767 static int ap2sta_data_frame(
768 struct adapter
*adapter
,
769 struct recv_frame
*precv_frame
,
770 struct sta_info
**psta
)
772 u8
*ptr
= precv_frame
->rx_data
;
773 struct rx_pkt_attrib
*pattrib
= &precv_frame
->attrib
;
775 struct sta_priv
*pstapriv
= &adapter
->stapriv
;
776 struct mlme_priv
*pmlmepriv
= &adapter
->mlmepriv
;
777 u8
*mybssid
= get_bssid(pmlmepriv
);
778 u8
*myhwaddr
= myid(&adapter
->eeprompriv
);
779 int bmcast
= IS_MCAST(pattrib
->dst
);
781 if ((check_fwstate(pmlmepriv
, WIFI_STATION_STATE
) == true) &&
782 (check_fwstate(pmlmepriv
, _FW_LINKED
) == true ||
783 check_fwstate(pmlmepriv
, _FW_UNDER_LINKING
))) {
784 /* filter packets that SA is myself or multicast or broadcast */
785 if (!memcmp(myhwaddr
, pattrib
->src
, ETH_ALEN
)) {
786 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, (" SA==myself\n"));
791 /* da should be for me */
792 if ((memcmp(myhwaddr
, pattrib
->dst
, ETH_ALEN
)) && (!bmcast
)) {
793 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
,
794 (" ap2sta_data_frame: compare DA fail; DA=%pM\n", (pattrib
->dst
)));
800 if (!memcmp(pattrib
->bssid
, "\x0\x0\x0\x0\x0\x0", ETH_ALEN
) ||
801 !memcmp(mybssid
, "\x0\x0\x0\x0\x0\x0", ETH_ALEN
) ||
802 (memcmp(pattrib
->bssid
, mybssid
, ETH_ALEN
))) {
803 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
,
804 (" ap2sta_data_frame: compare BSSID fail ; BSSID=%pM\n", (pattrib
->bssid
)));
805 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("mybssid=%pM\n", (mybssid
)));
808 DBG_88E("issue_deauth to the nonassociated ap=%pM for the reason(7)\n", (pattrib
->bssid
));
809 issue_deauth(adapter
, pattrib
->bssid
, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA
);
817 *psta
= rtw_get_bcmc_stainfo(adapter
);
819 *psta
= rtw_get_stainfo(pstapriv
, pattrib
->bssid
); /* get ap_info */
822 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("ap2sta: can't get psta under STATION_MODE ; drop pkt\n"));
827 /* if ((GetFrameSubType(ptr) & WIFI_QOS_DATA_TYPE) == WIFI_QOS_DATA_TYPE) { */
830 if (GetFrameSubType(ptr
) & BIT(6)) {
831 /* No data, will not indicate to upper layer, temporily count it here */
832 count_rx_stats(adapter
, precv_frame
, *psta
);
833 ret
= RTW_RX_HANDLED
;
836 } else if ((check_fwstate(pmlmepriv
, WIFI_MP_STATE
) == true) &&
837 (check_fwstate(pmlmepriv
, _FW_LINKED
) == true)) {
838 memcpy(pattrib
->dst
, GetAddr1Ptr(ptr
), ETH_ALEN
);
839 memcpy(pattrib
->src
, GetAddr2Ptr(ptr
), ETH_ALEN
);
840 memcpy(pattrib
->bssid
, GetAddr3Ptr(ptr
), ETH_ALEN
);
841 memcpy(pattrib
->ra
, pattrib
->dst
, ETH_ALEN
);
842 memcpy(pattrib
->ta
, pattrib
->src
, ETH_ALEN
);
845 memcpy(pattrib
->bssid
, mybssid
, ETH_ALEN
);
847 *psta
= rtw_get_stainfo(pstapriv
, pattrib
->bssid
); /* get sta_info */
849 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("can't get psta under MP_MODE ; drop pkt\n"));
853 } else if (check_fwstate(pmlmepriv
, WIFI_AP_STATE
)) {
855 ret
= RTW_RX_HANDLED
;
858 if (!memcmp(myhwaddr
, pattrib
->dst
, ETH_ALEN
) && (!bmcast
)) {
859 *psta
= rtw_get_stainfo(pstapriv
, pattrib
->bssid
); /* get sta_info */
861 DBG_88E("issue_deauth to the ap =%pM for the reason(7)\n", (pattrib
->bssid
));
863 issue_deauth(adapter
, pattrib
->bssid
, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA
);
875 static int sta2ap_data_frame(struct adapter
*adapter
,
876 struct recv_frame
*precv_frame
,
877 struct sta_info
**psta
)
879 struct rx_pkt_attrib
*pattrib
= &precv_frame
->attrib
;
880 struct sta_priv
*pstapriv
= &adapter
->stapriv
;
881 struct mlme_priv
*pmlmepriv
= &adapter
->mlmepriv
;
882 u8
*ptr
= precv_frame
->rx_data
;
883 unsigned char *mybssid
= get_bssid(pmlmepriv
);
886 if (check_fwstate(pmlmepriv
, WIFI_AP_STATE
) == true) {
887 /* For AP mode, RA = BSSID, TX = STA(SRC_ADDR), A3 = DST_ADDR */
888 if (memcmp(pattrib
->bssid
, mybssid
, ETH_ALEN
)) {
893 *psta
= rtw_get_stainfo(pstapriv
, pattrib
->src
);
895 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("can't get psta under AP_MODE; drop pkt\n"));
896 DBG_88E("issue_deauth to sta=%pM for the reason(7)\n", (pattrib
->src
));
898 issue_deauth(adapter
, pattrib
->src
, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA
);
900 ret
= RTW_RX_HANDLED
;
904 process_pwrbit_data(adapter
, precv_frame
);
906 if ((GetFrameSubType(ptr
) & WIFI_QOS_DATA_TYPE
) == WIFI_QOS_DATA_TYPE
)
907 process_wmmps_data(adapter
, precv_frame
);
909 if (GetFrameSubType(ptr
) & BIT(6)) {
910 /* No data, will not indicate to upper layer, temporily count it here */
911 count_rx_stats(adapter
, precv_frame
, *psta
);
912 ret
= RTW_RX_HANDLED
;
916 u8
*myhwaddr
= myid(&adapter
->eeprompriv
);
917 if (memcmp(pattrib
->ra
, myhwaddr
, ETH_ALEN
)) {
918 ret
= RTW_RX_HANDLED
;
921 DBG_88E("issue_deauth to sta=%pM for the reason(7)\n", (pattrib
->src
));
922 issue_deauth(adapter
, pattrib
->src
, WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA
);
923 ret
= RTW_RX_HANDLED
;
932 static int validate_recv_ctrl_frame(struct adapter
*padapter
,
933 struct recv_frame
*precv_frame
)
935 #ifdef CONFIG_88EU_AP_MODE
936 struct rx_pkt_attrib
*pattrib
= &precv_frame
->attrib
;
937 struct sta_priv
*pstapriv
= &padapter
->stapriv
;
938 u8
*pframe
= precv_frame
->rx_data
;
940 if (GetFrameType(pframe
) != WIFI_CTRL_TYPE
)
943 /* receive the frames that ra(a1) is my address */
944 if (memcmp(GetAddr1Ptr(pframe
), myid(&padapter
->eeprompriv
), ETH_ALEN
))
947 /* only handle ps-poll */
948 if (GetFrameSubType(pframe
) == WIFI_PSPOLL
) {
951 struct sta_info
*psta
= NULL
;
953 aid
= GetAid(pframe
);
954 psta
= rtw_get_stainfo(pstapriv
, GetAddr2Ptr(pframe
));
956 if ((psta
== NULL
) || (psta
->aid
!= aid
))
959 /* for rx pkt statistics */
960 psta
->sta_stats
.rx_ctrl_pkts
++;
962 switch (pattrib
->priority
) {
965 wmmps_ac
= psta
->uapsd_bk
&BIT(0);
969 wmmps_ac
= psta
->uapsd_vi
&BIT(0);
973 wmmps_ac
= psta
->uapsd_vo
&BIT(0);
978 wmmps_ac
= psta
->uapsd_be
&BIT(0);
985 if (psta
->state
& WIFI_STA_ALIVE_CHK_STATE
) {
986 DBG_88E("%s alive check-rx ps-poll\n", __func__
);
987 psta
->expire_to
= pstapriv
->expire_to
;
988 psta
->state
^= WIFI_STA_ALIVE_CHK_STATE
;
991 if ((psta
->state
&WIFI_SLEEP_STATE
) && (pstapriv
->sta_dz_bitmap
&BIT(psta
->aid
))) {
992 struct list_head
*xmitframe_plist
, *xmitframe_phead
;
993 struct xmit_frame
*pxmitframe
= NULL
;
995 spin_lock_bh(&psta
->sleep_q
.lock
);
997 xmitframe_phead
= get_list_head(&psta
->sleep_q
);
998 xmitframe_plist
= xmitframe_phead
->next
;
1000 if (xmitframe_phead
!= xmitframe_plist
) {
1001 pxmitframe
= container_of(xmitframe_plist
, struct xmit_frame
, list
);
1003 xmitframe_plist
= xmitframe_plist
->next
;
1005 list_del_init(&pxmitframe
->list
);
1009 if (psta
->sleepq_len
> 0)
1010 pxmitframe
->attrib
.mdata
= 1;
1012 pxmitframe
->attrib
.mdata
= 0;
1014 pxmitframe
->attrib
.triggered
= 1;
1016 spin_unlock_bh(&psta
->sleep_q
.lock
);
1017 if (rtw_hal_xmit(padapter
, pxmitframe
) == true)
1018 rtw_os_xmit_complete(padapter
, pxmitframe
);
1019 spin_lock_bh(&psta
->sleep_q
.lock
);
1021 if (psta
->sleepq_len
== 0) {
1022 pstapriv
->tim_bitmap
&= ~BIT(psta
->aid
);
1024 /* update BCN for TIM IE */
1025 /* update_BCNTIM(padapter); */
1026 update_beacon(padapter
, _TIM_IE_
, NULL
, false);
1029 if (pstapriv
->tim_bitmap
&BIT(psta
->aid
)) {
1030 if (psta
->sleepq_len
== 0) {
1031 DBG_88E("no buffered packets to xmit\n");
1033 /* issue nulldata with More data bit = 0 to indicate we have no buffered packets */
1034 issue_nulldata(padapter
, psta
->hwaddr
, 0, 0, 0);
1036 DBG_88E("error!psta->sleepq_len=%d\n", psta
->sleepq_len
);
1037 psta
->sleepq_len
= 0;
1040 pstapriv
->tim_bitmap
&= ~BIT(psta
->aid
);
1042 /* update BCN for TIM IE */
1043 /* update_BCNTIM(padapter); */
1044 update_beacon(padapter
, _TIM_IE_
, NULL
, false);
1048 spin_unlock_bh(&psta
->sleep_q
.lock
);
1057 struct recv_frame
*recvframe_chk_defrag(struct adapter
*padapter
,
1058 struct recv_frame
*precv_frame
);
1060 static int validate_recv_mgnt_frame(struct adapter
*padapter
,
1061 struct recv_frame
*precv_frame
)
1063 struct sta_info
*psta
;
1065 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("+validate_recv_mgnt_frame\n"));
1067 precv_frame
= recvframe_chk_defrag(padapter
, precv_frame
);
1068 if (precv_frame
== NULL
) {
1069 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
, ("%s: fragment packet\n", __func__
));
1073 /* for rx pkt statistics */
1074 psta
= rtw_get_stainfo(&padapter
->stapriv
,
1075 GetAddr2Ptr(precv_frame
->rx_data
));
1077 psta
->sta_stats
.rx_mgnt_pkts
++;
1078 if (GetFrameSubType(precv_frame
->rx_data
) == WIFI_BEACON
) {
1079 psta
->sta_stats
.rx_beacon_pkts
++;
1080 } else if (GetFrameSubType(precv_frame
->rx_data
) == WIFI_PROBEREQ
) {
1081 psta
->sta_stats
.rx_probereq_pkts
++;
1082 } else if (GetFrameSubType(precv_frame
->rx_data
) == WIFI_PROBERSP
) {
1083 if (!memcmp(padapter
->eeprompriv
.mac_addr
,
1084 GetAddr1Ptr(precv_frame
->rx_data
), ETH_ALEN
))
1085 psta
->sta_stats
.rx_probersp_pkts
++;
1086 else if (is_broadcast_mac_addr(GetAddr1Ptr(precv_frame
->rx_data
)) ||
1087 is_multicast_mac_addr(GetAddr1Ptr(precv_frame
->rx_data
)))
1088 psta
->sta_stats
.rx_probersp_bm_pkts
++;
1090 psta
->sta_stats
.rx_probersp_uo_pkts
++;
1094 mgt_dispatcher(padapter
, precv_frame
);
1099 static int validate_recv_data_frame(struct adapter
*adapter
,
1100 struct recv_frame
*precv_frame
)
1103 u8
*psa
, *pda
, *pbssid
;
1104 struct sta_info
*psta
= NULL
;
1105 u8
*ptr
= precv_frame
->rx_data
;
1106 struct rx_pkt_attrib
*pattrib
= &precv_frame
->attrib
;
1107 struct security_priv
*psecuritypriv
= &adapter
->securitypriv
;
1110 bretry
= GetRetry(ptr
);
1113 pbssid
= get_hdr_bssid(ptr
);
1115 if (pbssid
== NULL
) {
1120 memcpy(pattrib
->dst
, pda
, ETH_ALEN
);
1121 memcpy(pattrib
->src
, psa
, ETH_ALEN
);
1123 memcpy(pattrib
->bssid
, pbssid
, ETH_ALEN
);
1125 switch (pattrib
->to_fr_ds
) {
1127 memcpy(pattrib
->ra
, pda
, ETH_ALEN
);
1128 memcpy(pattrib
->ta
, psa
, ETH_ALEN
);
1129 ret
= sta2sta_data_frame(adapter
, precv_frame
, &psta
);
1132 memcpy(pattrib
->ra
, pda
, ETH_ALEN
);
1133 memcpy(pattrib
->ta
, pbssid
, ETH_ALEN
);
1134 ret
= ap2sta_data_frame(adapter
, precv_frame
, &psta
);
1137 memcpy(pattrib
->ra
, pbssid
, ETH_ALEN
);
1138 memcpy(pattrib
->ta
, psa
, ETH_ALEN
);
1139 ret
= sta2ap_data_frame(adapter
, precv_frame
, &psta
);
1142 memcpy(pattrib
->ra
, GetAddr1Ptr(ptr
), ETH_ALEN
);
1143 memcpy(pattrib
->ta
, GetAddr2Ptr(ptr
), ETH_ALEN
);
1145 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, (" case 3\n"));
1154 } else if (ret
== RTW_RX_HANDLED
) {
1159 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, (" after to_fr_ds_chk; psta==NULL\n"));
1164 /* psta->rssi = prxcmd->rssi; */
1165 /* psta->signal_quality = prxcmd->sq; */
1166 precv_frame
->psta
= psta
;
1169 pattrib
->ack_policy
= 0;
1170 /* parsing QC field */
1171 if (pattrib
->qos
== 1) {
1172 pattrib
->priority
= GetPriority((ptr
+ 24));
1173 pattrib
->ack_policy
= GetAckpolicy((ptr
+ 24));
1174 pattrib
->amsdu
= GetAMsdu((ptr
+ 24));
1175 pattrib
->hdrlen
= pattrib
->to_fr_ds
== 3 ? 32 : 26;
1177 if (pattrib
->priority
!= 0 && pattrib
->priority
!= 3)
1178 adapter
->recvpriv
.bIsAnyNonBEPkts
= true;
1180 pattrib
->priority
= 0;
1181 pattrib
->hdrlen
= pattrib
->to_fr_ds
== 3 ? 30 : 24;
1184 if (pattrib
->order
)/* HT-CTRL 11n */
1185 pattrib
->hdrlen
+= 4;
1187 precv_frame
->preorder_ctrl
= &psta
->recvreorder_ctrl
[pattrib
->priority
];
1189 /* decache, drop duplicate recv packets */
1190 if (recv_decache(precv_frame
, bretry
, &psta
->sta_recvpriv
.rxcache
) == _FAIL
) {
1191 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("decache : drop pkt\n"));
1196 if (pattrib
->privacy
) {
1197 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("validate_recv_data_frame:pattrib->privacy=%x\n", pattrib
->privacy
));
1198 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("\n ^^^^^^^^^^^IS_MCAST(pattrib->ra(0x%02x))=%d^^^^^^^^^^^^^^^6\n", pattrib
->ra
[0], IS_MCAST(pattrib
->ra
)));
1200 GET_ENCRY_ALGO(psecuritypriv
, psta
, pattrib
->encrypt
, IS_MCAST(pattrib
->ra
));
1202 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("\n pattrib->encrypt=%d\n", pattrib
->encrypt
));
1204 SET_ICE_IV_LEN(pattrib
->iv_len
, pattrib
->icv_len
, pattrib
->encrypt
);
1206 pattrib
->encrypt
= 0;
1207 pattrib
->iv_len
= 0;
1208 pattrib
->icv_len
= 0;
1216 static int validate_recv_frame(struct adapter
*adapter
,
1217 struct recv_frame
*precv_frame
)
1219 /* shall check frame subtype, to / from ds, da, bssid */
1221 /* then call check if rx seq/frag. duplicated. */
1225 int retval
= _SUCCESS
;
1227 struct rx_pkt_attrib
*pattrib
= &precv_frame
->attrib
;
1228 u8
*ptr
= precv_frame
->rx_data
;
1229 u8 ver
= (unsigned char)(*ptr
)&0x3;
1230 struct mlme_ext_priv
*pmlmeext
= &adapter
->mlmeextpriv
;
1232 if (pmlmeext
->sitesurvey_res
.state
== SCAN_PROCESS
) {
1233 int ch_set_idx
= rtw_ch_set_search_ch(pmlmeext
->channel_set
, rtw_get_oper_ch(adapter
));
1234 if (ch_set_idx
>= 0)
1235 pmlmeext
->channel_set
[ch_set_idx
].rx_count
++;
1238 /* add version chk */
1240 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("validate_recv_data_frame fail! (ver!=0)\n"));
1245 type
= GetFrameType(ptr
);
1246 subtype
= GetFrameSubType(ptr
); /* bit(7)~bit(2) */
1248 pattrib
->to_fr_ds
= get_tofr_ds(ptr
);
1250 pattrib
->frag_num
= GetFragNum(ptr
);
1251 pattrib
->seq_num
= GetSequence(ptr
);
1253 pattrib
->pw_save
= GetPwrMgt(ptr
);
1254 pattrib
->mfrag
= GetMFrag(ptr
);
1255 pattrib
->mdata
= GetMData(ptr
);
1256 pattrib
->privacy
= GetPrivacy(ptr
);
1257 pattrib
->order
= GetOrder(ptr
);
1259 /* Dump rx packets */
1260 rtw_hal_get_def_var(adapter
, HAL_DEF_DBG_DUMP_RXPKT
, &(bDumpRxPkt
));
1261 if (bDumpRxPkt
== 1) {/* dump all rx packets */
1262 if (_drv_err_
<= GlobalDebugLevel
) {
1263 pr_info(DRIVER_PREFIX
"#############################\n");
1264 print_hex_dump(KERN_INFO
, DRIVER_PREFIX
, DUMP_PREFIX_NONE
,
1265 16, 1, ptr
, 64, false);
1266 pr_info(DRIVER_PREFIX
"#############################\n");
1268 } else if (bDumpRxPkt
== 2) {
1269 if ((_drv_err_
<= GlobalDebugLevel
) && (type
== WIFI_MGT_TYPE
)) {
1270 pr_info(DRIVER_PREFIX
"#############################\n");
1271 print_hex_dump(KERN_INFO
, DRIVER_PREFIX
, DUMP_PREFIX_NONE
,
1272 16, 1, ptr
, 64, false);
1273 pr_info(DRIVER_PREFIX
"#############################\n");
1275 } else if (bDumpRxPkt
== 3) {
1276 if ((_drv_err_
<= GlobalDebugLevel
) && (type
== WIFI_DATA_TYPE
)) {
1277 pr_info(DRIVER_PREFIX
"#############################\n");
1278 print_hex_dump(KERN_INFO
, DRIVER_PREFIX
, DUMP_PREFIX_NONE
,
1279 16, 1, ptr
, 64, false);
1280 pr_info(DRIVER_PREFIX
"#############################\n");
1284 case WIFI_MGT_TYPE
: /* mgnt */
1285 retval
= validate_recv_mgnt_frame(adapter
, precv_frame
);
1286 if (retval
== _FAIL
)
1287 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("validate_recv_mgnt_frame fail\n"));
1288 retval
= _FAIL
; /* only data frame return _SUCCESS */
1290 case WIFI_CTRL_TYPE
: /* ctrl */
1291 retval
= validate_recv_ctrl_frame(adapter
, precv_frame
);
1292 if (retval
== _FAIL
)
1293 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("validate_recv_ctrl_frame fail\n"));
1294 retval
= _FAIL
; /* only data frame return _SUCCESS */
1296 case WIFI_DATA_TYPE
: /* data */
1297 rtw_led_control(adapter
, LED_CTL_RX
);
1298 pattrib
->qos
= (subtype
& BIT(7)) ? 1 : 0;
1299 retval
= validate_recv_data_frame(adapter
, precv_frame
);
1300 if (retval
== _FAIL
) {
1301 struct recv_priv
*precvpriv
= &adapter
->recvpriv
;
1302 precvpriv
->rx_drop
++;
1306 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("validate_recv_data_frame fail! type= 0x%x\n", type
));
1312 * This is the last moment before management and control frames get
1313 * discarded. So we need to forward them to the monitor now or never.
1315 * At the same time data frames can still be encrypted if software
1316 * decryption is in use. However, decryption can occur not until later
1317 * (see recv_func()).
1319 * Hence forward the frame to the monitor anyway to preserve the order
1320 * in which frames were received.
1322 rtl88eu_mon_recv_hook(adapter
->pmondev
, precv_frame
);
1329 /* remove the wlanhdr and add the eth_hdr */
1331 static int wlanhdr_to_ethhdr(struct recv_frame
*precvframe
)
1338 struct ieee80211_snap_hdr
*psnap
;
1340 struct adapter
*adapter
= precvframe
->adapter
;
1341 struct mlme_priv
*pmlmepriv
= &adapter
->mlmepriv
;
1342 u8
*ptr
= precvframe
->rx_data
;
1343 struct rx_pkt_attrib
*pattrib
= &precvframe
->attrib
;
1345 if (pattrib
->encrypt
)
1346 recvframe_pull_tail(precvframe
, pattrib
->icv_len
);
1348 psnap
= (struct ieee80211_snap_hdr
*)(ptr
+pattrib
->hdrlen
+ pattrib
->iv_len
);
1349 psnap_type
= ptr
+pattrib
->hdrlen
+ pattrib
->iv_len
+SNAP_SIZE
;
1350 /* convert hdr + possible LLC headers into Ethernet header */
1351 if ((!memcmp(psnap
, rtw_rfc1042_header
, SNAP_SIZE
) &&
1352 (!memcmp(psnap_type
, SNAP_ETH_TYPE_IPX
, 2) == false) &&
1353 (!memcmp(psnap_type
, SNAP_ETH_TYPE_APPLETALK_AARP
, 2) == false)) ||
1354 !memcmp(psnap
, rtw_bridge_tunnel_header
, SNAP_SIZE
)) {
1355 /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */
1358 /* Leave Ethernet header part of hdr and full payload */
1362 rmv_len
= pattrib
->hdrlen
+ pattrib
->iv_len
+ (bsnaphdr
? SNAP_SIZE
: 0);
1363 len
= precvframe
->len
- rmv_len
;
1365 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
,
1366 ("\n===pattrib->hdrlen: %x, pattrib->iv_len:%x===\n\n", pattrib
->hdrlen
, pattrib
->iv_len
));
1368 memcpy(&be_tmp
, ptr
+rmv_len
, 2);
1369 eth_type
= ntohs(be_tmp
); /* pattrib->ether_type */
1370 pattrib
->eth_type
= eth_type
;
1372 if ((check_fwstate(pmlmepriv
, WIFI_MP_STATE
))) {
1378 /* append rx status for mp test packets */
1379 ptr
= recvframe_pull(precvframe
, (rmv_len
-sizeof(struct ethhdr
)+2)-24);
1380 memcpy(ptr
, get_rxmem(precvframe
), 24);
1383 ptr
= recvframe_pull(precvframe
, (rmv_len
-sizeof(struct ethhdr
) + (bsnaphdr
? 2 : 0)));
1386 memcpy(ptr
, pattrib
->dst
, ETH_ALEN
);
1387 memcpy(ptr
+ETH_ALEN
, pattrib
->src
, ETH_ALEN
);
1390 be_tmp
= htons(len
);
1391 memcpy(ptr
+12, &be_tmp
, 2);
1397 /* perform defrag */
1398 static struct recv_frame
*recvframe_defrag(struct adapter
*adapter
,
1399 struct __queue
*defrag_q
)
1401 struct list_head
*plist
, *phead
;
1404 struct recv_frame
*pfhdr
, *pnfhdr
;
1405 struct recv_frame
*prframe
, *pnextrframe
;
1406 struct __queue
*pfree_recv_queue
;
1409 pfree_recv_queue
= &adapter
->recvpriv
.free_recv_queue
;
1411 phead
= get_list_head(defrag_q
);
1412 plist
= phead
->next
;
1413 pfhdr
= container_of(plist
, struct recv_frame
, list
);
1415 list_del_init(&(prframe
->list
));
1417 if (curfragnum
!= pfhdr
->attrib
.frag_num
) {
1418 /* the first fragment number must be 0 */
1419 /* free the whole queue */
1420 rtw_free_recvframe(prframe
, pfree_recv_queue
);
1421 rtw_free_recvframe_queue(defrag_q
, pfree_recv_queue
);
1428 plist
= get_list_head(defrag_q
);
1430 plist
= plist
->next
;
1432 while (phead
!= plist
) {
1433 pnfhdr
= container_of(plist
, struct recv_frame
, list
);
1434 pnextrframe
= pnfhdr
;
1436 /* check the fragment sequence (2nd ~n fragment frame) */
1438 if (curfragnum
!= pnfhdr
->attrib
.frag_num
) {
1439 /* the fragment number must be increasing (after decache) */
1440 /* release the defrag_q & prframe */
1441 rtw_free_recvframe(prframe
, pfree_recv_queue
);
1442 rtw_free_recvframe_queue(defrag_q
, pfree_recv_queue
);
1448 /* copy the 2nd~n fragment frame's payload to the first fragment */
1449 /* get the 2nd~last fragment frame's payload */
1451 wlanhdr_offset
= pnfhdr
->attrib
.hdrlen
+ pnfhdr
->attrib
.iv_len
;
1453 recvframe_pull(pnextrframe
, wlanhdr_offset
);
1455 /* append to first fragment frame's tail (if privacy frame, pull the ICV) */
1456 recvframe_pull_tail(prframe
, pfhdr
->attrib
.icv_len
);
1459 memcpy(pfhdr
->rx_tail
, pnfhdr
->rx_data
, pnfhdr
->len
);
1461 recvframe_put(prframe
, pnfhdr
->len
);
1463 pfhdr
->attrib
.icv_len
= pnfhdr
->attrib
.icv_len
;
1464 plist
= plist
->next
;
1467 /* free the defrag_q queue and return the prframe */
1468 rtw_free_recvframe_queue(defrag_q
, pfree_recv_queue
);
1470 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("Performance defrag!!!!!\n"));
1475 /* check if need to defrag, if needed queue the frame to defrag_q */
1476 struct recv_frame
*recvframe_chk_defrag(struct adapter
*padapter
,
1477 struct recv_frame
*precv_frame
)
1482 struct recv_frame
*pfhdr
;
1483 struct sta_info
*psta
;
1484 struct sta_priv
*pstapriv
;
1485 struct list_head
*phead
;
1486 struct recv_frame
*prtnframe
= NULL
;
1487 struct __queue
*pfree_recv_queue
, *pdefrag_q
;
1489 pstapriv
= &padapter
->stapriv
;
1491 pfhdr
= precv_frame
;
1493 pfree_recv_queue
= &padapter
->recvpriv
.free_recv_queue
;
1495 /* need to define struct of wlan header frame ctrl */
1496 ismfrag
= pfhdr
->attrib
.mfrag
;
1497 fragnum
= pfhdr
->attrib
.frag_num
;
1499 psta_addr
= pfhdr
->attrib
.ta
;
1500 psta
= rtw_get_stainfo(pstapriv
, psta_addr
);
1502 u8 type
= GetFrameType(pfhdr
->rx_data
);
1503 if (type
!= WIFI_DATA_TYPE
) {
1504 psta
= rtw_get_bcmc_stainfo(padapter
);
1505 pdefrag_q
= &psta
->sta_recvpriv
.defrag_q
;
1510 pdefrag_q
= &psta
->sta_recvpriv
.defrag_q
;
1513 if ((ismfrag
== 0) && (fragnum
== 0))
1514 prtnframe
= precv_frame
;/* isn't a fragment frame */
1517 /* 0~(n-1) fragment frame */
1518 /* enqueue to defraf_g */
1519 if (pdefrag_q
!= NULL
) {
1521 /* the first fragment */
1522 if (!list_empty(&pdefrag_q
->queue
))
1523 /* free current defrag_q */
1524 rtw_free_recvframe_queue(pdefrag_q
, pfree_recv_queue
);
1527 /* Then enqueue the 0~(n-1) fragment into the defrag_q */
1529 phead
= get_list_head(pdefrag_q
);
1530 list_add_tail(&pfhdr
->list
, phead
);
1532 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("Enqueuq: ismfrag=%d, fragnum=%d\n", ismfrag
, fragnum
));
1536 /* can't find this ta's defrag_queue, so free this recv_frame */
1537 rtw_free_recvframe(precv_frame
, pfree_recv_queue
);
1539 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("Free because pdefrag_q==NULL: ismfrag=%d, fragnum=%d\n", ismfrag
, fragnum
));
1543 if ((ismfrag
== 0) && (fragnum
!= 0)) {
1544 /* the last fragment frame */
1545 /* enqueue the last fragment */
1546 if (pdefrag_q
!= NULL
) {
1547 phead
= get_list_head(pdefrag_q
);
1548 list_add_tail(&pfhdr
->list
, phead
);
1550 /* call recvframe_defrag to defrag */
1551 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("defrag: ismfrag=%d, fragnum=%d\n", ismfrag
, fragnum
));
1552 precv_frame
= recvframe_defrag(padapter
, pdefrag_q
);
1553 prtnframe
= precv_frame
;
1555 /* can't find this ta's defrag_queue, so free this recv_frame */
1556 rtw_free_recvframe(precv_frame
, pfree_recv_queue
);
1558 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("Free because pdefrag_q==NULL: ismfrag=%d, fragnum=%d\n", ismfrag
, fragnum
));
1562 if ((prtnframe
!= NULL
) && (prtnframe
->attrib
.privacy
)) {
1563 /* after defrag we must check tkip mic code */
1564 if (recvframe_chkmic(padapter
, prtnframe
) == _FAIL
) {
1565 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("recvframe_chkmic(padapter, prtnframe)==_FAIL\n"));
1566 rtw_free_recvframe(prtnframe
, pfree_recv_queue
);
1574 static int amsdu_to_msdu(struct adapter
*padapter
, struct recv_frame
*prframe
)
1576 int a_len
, padding_len
;
1577 u16 eth_type
, nSubframe_Length
;
1579 unsigned char *pdata
;
1580 struct rx_pkt_attrib
*pattrib
;
1581 unsigned char *data_ptr
;
1582 struct sk_buff
*sub_skb
, *subframes
[MAX_SUBFRAME_COUNT
];
1583 struct recv_priv
*precvpriv
= &padapter
->recvpriv
;
1584 struct __queue
*pfree_recv_queue
= &(precvpriv
->free_recv_queue
);
1587 pattrib
= &prframe
->attrib
;
1589 recvframe_pull(prframe
, prframe
->attrib
.hdrlen
);
1591 if (prframe
->attrib
.iv_len
> 0)
1592 recvframe_pull(prframe
, prframe
->attrib
.iv_len
);
1594 a_len
= prframe
->len
;
1596 pdata
= prframe
->rx_data
;
1598 while (a_len
> ETH_HLEN
) {
1599 /* Offset 12 denote 2 mac address */
1600 nSubframe_Length
= get_unaligned_be16(pdata
+ 12);
1602 if (a_len
< (ETHERNET_HEADER_SIZE
+ nSubframe_Length
)) {
1603 DBG_88E("nRemain_Length is %d and nSubframe_Length is : %d\n", a_len
, nSubframe_Length
);
1607 /* move the data point to data content */
1611 /* Allocate new skb for releasing to upper layer */
1612 sub_skb
= dev_alloc_skb(nSubframe_Length
+ 12);
1614 skb_reserve(sub_skb
, 12);
1615 data_ptr
= (u8
*)skb_put(sub_skb
, nSubframe_Length
);
1616 memcpy(data_ptr
, pdata
, nSubframe_Length
);
1618 sub_skb
= skb_clone(prframe
->pkt
, GFP_ATOMIC
);
1620 sub_skb
->data
= pdata
;
1621 sub_skb
->len
= nSubframe_Length
;
1622 skb_set_tail_pointer(sub_skb
, nSubframe_Length
);
1624 DBG_88E("skb_clone() Fail!!! , nr_subframes=%d\n", nr_subframes
);
1629 subframes
[nr_subframes
++] = sub_skb
;
1631 if (nr_subframes
>= MAX_SUBFRAME_COUNT
) {
1632 DBG_88E("ParseSubframe(): Too many Subframes! Packets dropped!\n");
1636 pdata
+= nSubframe_Length
;
1637 a_len
-= nSubframe_Length
;
1639 padding_len
= 4 - ((nSubframe_Length
+ ETH_HLEN
) & (4-1));
1640 if (padding_len
== 4)
1643 if (a_len
< padding_len
) {
1646 pdata
+= padding_len
;
1647 a_len
-= padding_len
;
1651 for (i
= 0; i
< nr_subframes
; i
++) {
1652 sub_skb
= subframes
[i
];
1653 /* convert hdr + possible LLC headers into Ethernet header */
1654 eth_type
= get_unaligned_be16(&sub_skb
->data
[6]);
1655 if (sub_skb
->len
>= 8 &&
1656 ((!memcmp(sub_skb
->data
, rtw_rfc1042_header
, SNAP_SIZE
) &&
1657 eth_type
!= ETH_P_AARP
&& eth_type
!= ETH_P_IPX
) ||
1658 !memcmp(sub_skb
->data
, rtw_bridge_tunnel_header
, SNAP_SIZE
))) {
1659 /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */
1660 skb_pull(sub_skb
, SNAP_SIZE
);
1661 memcpy(skb_push(sub_skb
, ETH_ALEN
), pattrib
->src
, ETH_ALEN
);
1662 memcpy(skb_push(sub_skb
, ETH_ALEN
), pattrib
->dst
, ETH_ALEN
);
1665 /* Leave Ethernet header part of hdr and full payload */
1666 len
= htons(sub_skb
->len
);
1667 memcpy(skb_push(sub_skb
, 2), &len
, 2);
1668 memcpy(skb_push(sub_skb
, ETH_ALEN
), pattrib
->src
, ETH_ALEN
);
1669 memcpy(skb_push(sub_skb
, ETH_ALEN
), pattrib
->dst
, ETH_ALEN
);
1672 /* Indicate the packets to upper layer */
1673 /* Insert NAT2.5 RX here! */
1674 sub_skb
->protocol
= eth_type_trans(sub_skb
, padapter
->pnetdev
);
1675 sub_skb
->dev
= padapter
->pnetdev
;
1677 sub_skb
->ip_summed
= CHECKSUM_NONE
;
1685 rtw_free_recvframe(prframe
, pfree_recv_queue
);/* free this recv_frame */
1690 static int check_indicate_seq(struct recv_reorder_ctrl
*preorder_ctrl
, u16 seq_num
)
1692 u8 wsize
= preorder_ctrl
->wsize_b
;
1693 u16 wend
= (preorder_ctrl
->indicate_seq
+ wsize
- 1) & 0xFFF;/* 4096; */
1695 /* Rx Reorder initialize condition. */
1696 if (preorder_ctrl
->indicate_seq
== 0xFFFF)
1697 preorder_ctrl
->indicate_seq
= seq_num
;
1699 /* Drop out the packet which SeqNum is smaller than WinStart */
1700 if (SN_LESS(seq_num
, preorder_ctrl
->indicate_seq
))
1704 /* Sliding window manipulation. Conditions includes: */
1705 /* 1. Incoming SeqNum is equal to WinStart =>Window shift 1 */
1706 /* 2. Incoming SeqNum is larger than the WinEnd => Window shift N */
1708 if (SN_EQUAL(seq_num
, preorder_ctrl
->indicate_seq
)) {
1709 preorder_ctrl
->indicate_seq
= (preorder_ctrl
->indicate_seq
+ 1) & 0xFFF;
1710 } else if (SN_LESS(wend
, seq_num
)) {
1711 if (seq_num
>= (wsize
- 1))
1712 preorder_ctrl
->indicate_seq
= seq_num
+ 1 - wsize
;
1714 preorder_ctrl
->indicate_seq
= 0xFFF - (wsize
- (seq_num
+ 1)) + 1;
1720 static int enqueue_reorder_recvframe(struct recv_reorder_ctrl
*preorder_ctrl
,
1721 struct recv_frame
*prframe
)
1723 struct rx_pkt_attrib
*pattrib
= &prframe
->attrib
;
1724 struct __queue
*ppending_recvframe_queue
= &preorder_ctrl
->pending_recvframe_queue
;
1725 struct list_head
*phead
, *plist
;
1726 struct recv_frame
*hdr
;
1727 struct rx_pkt_attrib
*pnextattrib
;
1729 phead
= get_list_head(ppending_recvframe_queue
);
1730 plist
= phead
->next
;
1732 while (phead
!= plist
) {
1733 hdr
= container_of(plist
, struct recv_frame
, list
);
1734 pnextattrib
= &hdr
->attrib
;
1736 if (SN_LESS(pnextattrib
->seq_num
, pattrib
->seq_num
))
1737 plist
= plist
->next
;
1738 else if (SN_EQUAL(pnextattrib
->seq_num
, pattrib
->seq_num
))
1744 list_del_init(&(prframe
->list
));
1746 list_add_tail(&(prframe
->list
), plist
);
1750 static int recv_indicatepkts_in_order(struct adapter
*padapter
, struct recv_reorder_ctrl
*preorder_ctrl
, int bforced
)
1752 struct list_head
*phead
, *plist
;
1753 struct recv_frame
*prframe
;
1754 struct recv_frame
*prhdr
;
1755 struct rx_pkt_attrib
*pattrib
;
1756 int bPktInBuf
= false;
1757 struct recv_priv
*precvpriv
= &padapter
->recvpriv
;
1758 struct __queue
*ppending_recvframe_queue
= &preorder_ctrl
->pending_recvframe_queue
;
1760 phead
= get_list_head(ppending_recvframe_queue
);
1761 plist
= phead
->next
;
1763 /* Handling some condition for forced indicate case. */
1765 if (list_empty(phead
))
1768 prhdr
= container_of(plist
, struct recv_frame
, list
);
1769 pattrib
= &prhdr
->attrib
;
1770 preorder_ctrl
->indicate_seq
= pattrib
->seq_num
;
1773 /* Prepare indication list and indication. */
1774 /* Check if there is any packet need indicate. */
1775 while (!list_empty(phead
)) {
1776 prhdr
= container_of(plist
, struct recv_frame
, list
);
1778 pattrib
= &prframe
->attrib
;
1780 if (!SN_LESS(preorder_ctrl
->indicate_seq
, pattrib
->seq_num
)) {
1781 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
,
1782 ("recv_indicatepkts_in_order: indicate=%d seq=%d amsdu=%d\n",
1783 preorder_ctrl
->indicate_seq
, pattrib
->seq_num
, pattrib
->amsdu
));
1784 plist
= plist
->next
;
1785 list_del_init(&(prframe
->list
));
1787 if (SN_EQUAL(preorder_ctrl
->indicate_seq
, pattrib
->seq_num
))
1788 preorder_ctrl
->indicate_seq
= (preorder_ctrl
->indicate_seq
+ 1) & 0xFFF;
1790 /* Set this as a lock to make sure that only one thread is indicating packet. */
1792 /* indicate this recv_frame */
1793 if (!pattrib
->amsdu
) {
1794 if ((!padapter
->bDriverStopped
) &&
1795 (!padapter
->bSurpriseRemoved
))
1796 rtw_recv_indicatepkt(padapter
, prframe
);/* indicate this recv_frame */
1797 } else if (pattrib
->amsdu
== 1) {
1798 if (amsdu_to_msdu(padapter
, prframe
) != _SUCCESS
)
1799 rtw_free_recvframe(prframe
, &precvpriv
->free_recv_queue
);
1801 /* error condition; */
1804 /* Update local variables. */
1814 static int recv_indicatepkt_reorder(struct adapter
*padapter
,
1815 struct recv_frame
*prframe
)
1817 int retval
= _SUCCESS
;
1818 struct rx_pkt_attrib
*pattrib
= &prframe
->attrib
;
1819 struct recv_reorder_ctrl
*preorder_ctrl
= prframe
->preorder_ctrl
;
1820 struct __queue
*ppending_recvframe_queue
= &preorder_ctrl
->pending_recvframe_queue
;
1822 if (!pattrib
->amsdu
) {
1824 wlanhdr_to_ethhdr(prframe
);
1826 if ((pattrib
->qos
!= 1) || (pattrib
->eth_type
== 0x0806) ||
1827 (pattrib
->ack_policy
!= 0)) {
1828 if ((!padapter
->bDriverStopped
) &&
1829 (!padapter
->bSurpriseRemoved
)) {
1830 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
, ("@@@@ recv_indicatepkt_reorder -recv_func recv_indicatepkt\n"));
1832 rtw_recv_indicatepkt(padapter
, prframe
);
1839 if (!preorder_ctrl
->enable
) {
1840 /* indicate this recv_frame */
1841 preorder_ctrl
->indicate_seq
= pattrib
->seq_num
;
1842 rtw_recv_indicatepkt(padapter
, prframe
);
1844 preorder_ctrl
->indicate_seq
= (preorder_ctrl
->indicate_seq
+ 1)%4096;
1847 } else if (pattrib
->amsdu
== 1) { /* temp filter -> means didn't support A-MSDUs in a A-MPDU */
1848 if (!preorder_ctrl
->enable
) {
1849 preorder_ctrl
->indicate_seq
= pattrib
->seq_num
;
1850 retval
= amsdu_to_msdu(padapter
, prframe
);
1852 preorder_ctrl
->indicate_seq
= (preorder_ctrl
->indicate_seq
+ 1)%4096;
1857 spin_lock_bh(&ppending_recvframe_queue
->lock
);
1859 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
,
1860 ("recv_indicatepkt_reorder: indicate=%d seq=%d\n",
1861 preorder_ctrl
->indicate_seq
, pattrib
->seq_num
));
1863 /* s2. check if winstart_b(indicate_seq) needs to been updated */
1864 if (!check_indicate_seq(preorder_ctrl
, pattrib
->seq_num
)) {
1865 rtw_recv_indicatepkt(padapter
, prframe
);
1867 spin_unlock_bh(&ppending_recvframe_queue
->lock
);
1872 /* s3. Insert all packet into Reorder Queue to maintain its ordering. */
1873 if (!enqueue_reorder_recvframe(preorder_ctrl
, prframe
))
1877 /* Indication process. */
1878 /* After Packet dropping and Sliding Window shifting as above, we can now just indicate the packets */
1879 /* with the SeqNum smaller than latest WinStart and buffer other packets. */
1881 /* For Rx Reorder condition: */
1882 /* 1. All packets with SeqNum smaller than WinStart => Indicate */
1883 /* 2. All packets with SeqNum larger than or equal to WinStart => Buffer it. */
1886 /* recv_indicatepkts_in_order(padapter, preorder_ctrl, true); */
1887 if (recv_indicatepkts_in_order(padapter
, preorder_ctrl
, false)) {
1888 mod_timer(&preorder_ctrl
->reordering_ctrl_timer
,
1889 jiffies
+ msecs_to_jiffies(REORDER_WAIT_TIME
));
1890 spin_unlock_bh(&ppending_recvframe_queue
->lock
);
1892 spin_unlock_bh(&ppending_recvframe_queue
->lock
);
1893 del_timer_sync(&preorder_ctrl
->reordering_ctrl_timer
);
1902 spin_unlock_bh(&ppending_recvframe_queue
->lock
);
1907 void rtw_reordering_ctrl_timeout_handler(unsigned long data
)
1909 struct recv_reorder_ctrl
*preorder_ctrl
= (struct recv_reorder_ctrl
*)data
;
1910 struct adapter
*padapter
= preorder_ctrl
->padapter
;
1911 struct __queue
*ppending_recvframe_queue
= &preorder_ctrl
->pending_recvframe_queue
;
1913 if (padapter
->bDriverStopped
|| padapter
->bSurpriseRemoved
)
1916 spin_lock_bh(&ppending_recvframe_queue
->lock
);
1918 if (recv_indicatepkts_in_order(padapter
, preorder_ctrl
, true) == true)
1919 mod_timer(&preorder_ctrl
->reordering_ctrl_timer
,
1920 jiffies
+ msecs_to_jiffies(REORDER_WAIT_TIME
));
1922 spin_unlock_bh(&ppending_recvframe_queue
->lock
);
1925 static int process_recv_indicatepkts(struct adapter
*padapter
,
1926 struct recv_frame
*prframe
)
1928 int retval
= _SUCCESS
;
1929 struct mlme_priv
*pmlmepriv
= &padapter
->mlmepriv
;
1930 struct ht_priv
*phtpriv
= &pmlmepriv
->htpriv
;
1932 if (phtpriv
->ht_option
) { /* B/G/N Mode */
1933 if (recv_indicatepkt_reorder(padapter
, prframe
) != _SUCCESS
) {
1934 /* including perform A-MPDU Rx Ordering Buffer Control */
1935 if ((!padapter
->bDriverStopped
) &&
1936 (!padapter
->bSurpriseRemoved
)) {
1941 } else { /* B/G mode */
1942 retval
= wlanhdr_to_ethhdr(prframe
);
1943 if (retval
!= _SUCCESS
) {
1944 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("wlanhdr_to_ethhdr: drop pkt\n"));
1948 if ((!padapter
->bDriverStopped
) &&
1949 (!padapter
->bSurpriseRemoved
)) {
1950 /* indicate this recv_frame */
1951 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
, ("@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n"));
1952 rtw_recv_indicatepkt(padapter
, prframe
);
1954 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
, ("@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n"));
1956 RT_TRACE(_module_rtl871x_recv_c_
, _drv_notice_
, ("recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)", padapter
->bDriverStopped
, padapter
->bSurpriseRemoved
));
1965 static int recv_func_prehandle(struct adapter
*padapter
,
1966 struct recv_frame
*rframe
)
1969 struct __queue
*pfree_recv_queue
= &padapter
->recvpriv
.free_recv_queue
;
1971 /* check the frame crtl field and decache */
1972 ret
= validate_recv_frame(padapter
, rframe
);
1973 if (ret
!= _SUCCESS
) {
1974 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("recv_func: validate_recv_frame fail! drop pkt\n"));
1975 rtw_free_recvframe(rframe
, pfree_recv_queue
);/* free this recv_frame */
1983 static int recv_func_posthandle(struct adapter
*padapter
,
1984 struct recv_frame
*prframe
)
1987 struct recv_frame
*orig_prframe
= prframe
;
1988 struct recv_priv
*precvpriv
= &padapter
->recvpriv
;
1989 struct __queue
*pfree_recv_queue
= &padapter
->recvpriv
.free_recv_queue
;
1992 rtw_led_control(padapter
, LED_CTL_RX
);
1994 prframe
= decryptor(padapter
, prframe
);
1995 if (prframe
== NULL
) {
1996 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("decryptor: drop pkt\n"));
1998 goto _recv_data_drop
;
2001 prframe
= recvframe_chk_defrag(padapter
, prframe
);
2002 if (prframe
== NULL
) {
2003 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("recvframe_chk_defrag: drop pkt\n"));
2004 goto _recv_data_drop
;
2007 prframe
= portctrl(padapter
, prframe
);
2008 if (prframe
== NULL
) {
2009 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("portctrl: drop pkt\n"));
2011 goto _recv_data_drop
;
2014 count_rx_stats(padapter
, prframe
, NULL
);
2016 ret
= process_recv_indicatepkts(padapter
, prframe
);
2017 if (ret
!= _SUCCESS
) {
2018 RT_TRACE(_module_rtl871x_recv_c_
, _drv_err_
, ("recv_func: process_recv_indicatepkts fail!\n"));
2019 rtw_free_recvframe(orig_prframe
, pfree_recv_queue
);/* free this recv_frame */
2020 goto _recv_data_drop
;
2025 precvpriv
->rx_drop
++;
2029 static int recv_func(struct adapter
*padapter
, struct recv_frame
*rframe
)
2032 struct rx_pkt_attrib
*prxattrib
= &rframe
->attrib
;
2033 struct security_priv
*psecuritypriv
= &padapter
->securitypriv
;
2034 struct mlme_priv
*mlmepriv
= &padapter
->mlmepriv
;
2036 /* check if need to handle uc_swdec_pending_queue*/
2037 if (check_fwstate(mlmepriv
, WIFI_STATION_STATE
) && psecuritypriv
->busetkipkey
) {
2038 struct recv_frame
*pending_frame
;
2040 while ((pending_frame
= rtw_alloc_recvframe(&padapter
->recvpriv
.uc_swdec_pending_queue
))) {
2041 if (recv_func_posthandle(padapter
, pending_frame
) == _SUCCESS
)
2042 DBG_88E("%s: dequeue uc_swdec_pending_queue\n", __func__
);
2046 ret
= recv_func_prehandle(padapter
, rframe
);
2048 if (ret
== _SUCCESS
) {
2049 /* check if need to enqueue into uc_swdec_pending_queue*/
2050 if (check_fwstate(mlmepriv
, WIFI_STATION_STATE
) &&
2051 !IS_MCAST(prxattrib
->ra
) && prxattrib
->encrypt
> 0 &&
2052 (prxattrib
->bdecrypted
== 0 || psecuritypriv
->sw_decrypt
) &&
2053 !is_wep_enc(psecuritypriv
->dot11PrivacyAlgrthm
) &&
2054 !psecuritypriv
->busetkipkey
) {
2055 rtw_enqueue_recvframe(rframe
, &padapter
->recvpriv
.uc_swdec_pending_queue
);
2056 DBG_88E("%s: no key, enqueue uc_swdec_pending_queue\n", __func__
);
2060 ret
= recv_func_posthandle(padapter
, rframe
);
2067 s32
rtw_recv_entry(struct recv_frame
*precvframe
)
2069 struct adapter
*padapter
;
2070 struct recv_priv
*precvpriv
;
2073 padapter
= precvframe
->adapter
;
2075 precvpriv
= &padapter
->recvpriv
;
2077 ret
= recv_func(padapter
, precvframe
);
2079 RT_TRACE(_module_rtl871x_recv_c_
, _drv_info_
, ("rtw_recv_entry: recv_func return fail!!!\n"));
2080 goto _recv_entry_drop
;
2083 precvpriv
->rx_pkts
++;
2091 void rtw_signal_stat_timer_hdl(unsigned long data
)
2093 struct adapter
*adapter
= (struct adapter
*)data
;
2094 struct recv_priv
*recvpriv
= &adapter
->recvpriv
;
2097 u8 avg_signal_strength
= 0;
2098 u8 avg_signal_qual
= 0;
2099 u8 _alpha
= 3; /* this value is based on converging_constant = 5000 and sampling_interval = 1000 */
2101 if (adapter
->recvpriv
.is_signal_dbg
) {
2102 /* update the user specific value, signal_strength_dbg, to signal_strength, rssi */
2103 adapter
->recvpriv
.signal_strength
= adapter
->recvpriv
.signal_strength_dbg
;
2104 adapter
->recvpriv
.rssi
= (s8
)translate_percentage_to_dbm((u8
)adapter
->recvpriv
.signal_strength_dbg
);
2106 if (recvpriv
->signal_strength_data
.update_req
== 0) {/* update_req is clear, means we got rx */
2107 avg_signal_strength
= recvpriv
->signal_strength_data
.avg_val
;
2108 /* after avg_vals are acquired, we can re-stat the signal values */
2109 recvpriv
->signal_strength_data
.update_req
= 1;
2112 if (recvpriv
->signal_qual_data
.update_req
== 0) {/* update_req is clear, means we got rx */
2113 avg_signal_qual
= recvpriv
->signal_qual_data
.avg_val
;
2114 /* after avg_vals are acquired, we can re-stat the signal values */
2115 recvpriv
->signal_qual_data
.update_req
= 1;
2118 /* update value of signal_strength, rssi, signal_qual */
2119 if (check_fwstate(&adapter
->mlmepriv
, _FW_UNDER_SURVEY
) == false) {
2120 tmp_s
= avg_signal_strength
+(_alpha
-1)*recvpriv
->signal_strength
;
2122 tmp_s
= tmp_s
/_alpha
+ 1;
2124 tmp_s
= tmp_s
/_alpha
;
2128 tmp_q
= avg_signal_qual
+(_alpha
-1)*recvpriv
->signal_qual
;
2130 tmp_q
= tmp_q
/_alpha
+ 1;
2132 tmp_q
= tmp_q
/_alpha
;
2136 recvpriv
->signal_strength
= tmp_s
;
2137 recvpriv
->rssi
= (s8
)translate_percentage_to_dbm(tmp_s
);
2138 recvpriv
->signal_qual
= tmp_q
;
2141 rtw_set_signal_stat_timer(recvpriv
);