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5e93f352 LF |
1 | /****************************************************************************** |
2 | * | |
3 | * Copyright(c) 2007 - 2012 Realtek Corporation. All rights reserved. | |
4 | * | |
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. | |
8 | * | |
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 | |
12 | * more details. | |
13 | * | |
14 | ******************************************************************************/ | |
15 | #define _RTW_RECV_C_ | |
16 | #include <osdep_service.h> | |
17 | #include <drv_types.h> | |
18 | #include <recv_osdep.h> | |
19 | #include <mlme_osdep.h> | |
20 | #include <linux/ip.h> | |
21 | #include <linux/if_ether.h> | |
5e93f352 LF |
22 | #include <usb_ops.h> |
23 | #include <linux/ieee80211.h> | |
24 | #include <wifi.h> | |
b3d139a6 | 25 | #include <rtl8723a_recv.h> |
638443dc | 26 | #include <rtl8723a_xmit.h> |
5e93f352 LF |
27 | |
28 | void rtw_signal_stat_timer_hdl23a(unsigned long data); | |
29 | ||
30 | void _rtw_init_sta_recv_priv23a(struct sta_recv_priv *psta_recvpriv) | |
31 | { | |
32 | ||
33 | ||
34 | ||
35 | spin_lock_init(&psta_recvpriv->lock); | |
36 | ||
37 | /* for (i = 0; i<MAX_RX_NUMBLKS; i++) */ | |
38 | /* _rtw_init_queue23a(&psta_recvpriv->blk_strms[i]); */ | |
39 | ||
40 | _rtw_init_queue23a(&psta_recvpriv->defrag_q); | |
41 | ||
42 | ||
43 | } | |
44 | ||
45 | int _rtw_init_recv_priv23a(struct recv_priv *precvpriv, | |
46 | struct rtw_adapter *padapter) | |
47 | { | |
48 | struct recv_frame *precvframe; | |
49 | int i; | |
50 | int res = _SUCCESS; | |
51 | ||
5e93f352 LF |
52 | spin_lock_init(&precvpriv->lock); |
53 | ||
54 | _rtw_init_queue23a(&precvpriv->free_recv_queue); | |
55 | _rtw_init_queue23a(&precvpriv->recv_pending_queue); | |
56 | _rtw_init_queue23a(&precvpriv->uc_swdec_pending_queue); | |
57 | ||
58 | precvpriv->adapter = padapter; | |
59 | ||
5e93f352 | 60 | for (i = 0; i < NR_RECVFRAME ; i++) { |
7b20f7b3 | 61 | precvframe = kzalloc(sizeof(struct recv_frame), GFP_KERNEL); |
fd6d1c11 JS |
62 | if (!precvframe) |
63 | break; | |
5e93f352 LF |
64 | INIT_LIST_HEAD(&precvframe->list); |
65 | ||
66 | list_add_tail(&precvframe->list, | |
67 | &precvpriv->free_recv_queue.queue); | |
68 | ||
5e93f352 LF |
69 | precvframe->adapter = padapter; |
70 | precvframe++; | |
71 | } | |
72 | ||
fd6d1c11 | 73 | precvpriv->free_recvframe_cnt = i; |
5e93f352 LF |
74 | precvpriv->rx_pending_cnt = 1; |
75 | ||
b3d139a6 | 76 | res = rtl8723au_init_recv_priv(padapter); |
5e93f352 LF |
77 | |
78 | setup_timer(&precvpriv->signal_stat_timer, rtw_signal_stat_timer_hdl23a, | |
79 | (unsigned long)padapter); | |
80 | ||
81 | precvpriv->signal_stat_sampling_interval = 1000; /* ms */ | |
82 | ||
83 | rtw_set_signal_stat_timer(precvpriv); | |
84 | ||
5e93f352 LF |
85 | return res; |
86 | } | |
87 | ||
f0eba516 | 88 | void _rtw_free_recv_priv23a(struct recv_priv *precvpriv) |
5e93f352 LF |
89 | { |
90 | struct rtw_adapter *padapter = precvpriv->adapter; | |
e280d71b | 91 | struct recv_frame *precvframe, *ptmp; |
5e93f352 LF |
92 | |
93 | rtw_free_uc_swdec_pending_queue23a(padapter); | |
94 | ||
e280d71b GT |
95 | list_for_each_entry_safe(precvframe, ptmp, |
96 | &precvpriv->free_recv_queue.queue, list) { | |
fd6d1c11 JS |
97 | list_del_init(&precvframe->list); |
98 | kfree(precvframe); | |
5e93f352 LF |
99 | } |
100 | ||
b3d139a6 | 101 | rtl8723au_free_recv_priv(padapter); |
5e93f352 LF |
102 | } |
103 | ||
104 | struct recv_frame *rtw_alloc_recvframe23a(struct rtw_queue *pfree_recv_queue) | |
105 | { | |
106 | struct recv_frame *pframe; | |
5e93f352 LF |
107 | struct rtw_adapter *padapter; |
108 | struct recv_priv *precvpriv; | |
109 | ||
110 | spin_lock_bh(&pfree_recv_queue->lock); | |
111 | ||
8584394b GT |
112 | pframe = list_first_entry_or_null(&pfree_recv_queue->queue, |
113 | struct recv_frame, list); | |
114 | if (pframe) { | |
5e93f352 LF |
115 | list_del_init(&pframe->list); |
116 | padapter = pframe->adapter; | |
117 | if (padapter) { | |
118 | precvpriv = &padapter->recvpriv; | |
119 | if (pfree_recv_queue == &precvpriv->free_recv_queue) | |
120 | precvpriv->free_recvframe_cnt--; | |
121 | } | |
122 | } | |
123 | ||
124 | spin_unlock_bh(&pfree_recv_queue->lock); | |
125 | ||
126 | return pframe; | |
127 | } | |
128 | ||
c5779a0d | 129 | int rtw_free_recvframe23a(struct recv_frame *precvframe) |
5e93f352 LF |
130 | { |
131 | struct rtw_adapter *padapter = precvframe->adapter; | |
132 | struct recv_priv *precvpriv = &padapter->recvpriv; | |
c5779a0d | 133 | struct rtw_queue *pfree_recv_queue; |
5e93f352 LF |
134 | |
135 | if (precvframe->pkt) { | |
136 | dev_kfree_skb_any(precvframe->pkt);/* free skb by driver */ | |
137 | precvframe->pkt = NULL; | |
138 | } | |
139 | ||
c5779a0d | 140 | pfree_recv_queue = &precvpriv->free_recv_queue; |
5e93f352 LF |
141 | spin_lock_bh(&pfree_recv_queue->lock); |
142 | ||
143 | list_del_init(&precvframe->list); | |
144 | ||
145 | list_add_tail(&precvframe->list, get_list_head(pfree_recv_queue)); | |
146 | ||
147 | if (padapter) { | |
148 | if (pfree_recv_queue == &precvpriv->free_recv_queue) | |
149 | precvpriv->free_recvframe_cnt++; | |
150 | } | |
151 | ||
152 | spin_unlock_bh(&pfree_recv_queue->lock); | |
153 | ||
154 | ||
155 | ||
156 | return _SUCCESS; | |
157 | } | |
158 | ||
159 | int rtw_enqueue_recvframe23a(struct recv_frame *precvframe, struct rtw_queue *queue) | |
160 | { | |
161 | struct rtw_adapter *padapter = precvframe->adapter; | |
162 | struct recv_priv *precvpriv = &padapter->recvpriv; | |
163 | ||
164 | spin_lock_bh(&queue->lock); | |
165 | ||
166 | list_del_init(&precvframe->list); | |
167 | ||
168 | list_add_tail(&precvframe->list, get_list_head(queue)); | |
169 | ||
170 | if (padapter) { | |
171 | if (queue == &precvpriv->free_recv_queue) | |
172 | precvpriv->free_recvframe_cnt++; | |
173 | } | |
174 | ||
175 | spin_unlock_bh(&queue->lock); | |
176 | ||
177 | return _SUCCESS; | |
178 | } | |
179 | ||
180 | /* | |
181 | caller : defrag ; recvframe_chk_defrag23a in recv_thread (passive) | |
182 | pframequeue: defrag_queue : will be accessed in recv_thread (passive) | |
183 | ||
184 | using spinlock to protect | |
185 | ||
186 | */ | |
187 | ||
c5779a0d | 188 | static void rtw_free_recvframe23a_queue(struct rtw_queue *pframequeue) |
5e93f352 | 189 | { |
e280d71b | 190 | struct recv_frame *hdr, *ptmp; |
703a7604 | 191 | struct list_head *phead; |
5e93f352 | 192 | |
5e93f352 | 193 | spin_lock(&pframequeue->lock); |
5e93f352 | 194 | phead = get_list_head(pframequeue); |
e280d71b | 195 | list_for_each_entry_safe(hdr, ptmp, phead, list) |
c5779a0d | 196 | rtw_free_recvframe23a(hdr); |
5e93f352 | 197 | spin_unlock(&pframequeue->lock); |
5e93f352 LF |
198 | } |
199 | ||
200 | u32 rtw_free_uc_swdec_pending_queue23a(struct rtw_adapter *adapter) | |
201 | { | |
202 | u32 cnt = 0; | |
203 | struct recv_frame *pending_frame; | |
831fa5f6 | 204 | |
5e93f352 | 205 | while ((pending_frame = rtw_alloc_recvframe23a(&adapter->recvpriv.uc_swdec_pending_queue))) { |
c5779a0d | 206 | rtw_free_recvframe23a(pending_frame); |
5e93f352 LF |
207 | DBG_8723A("%s: dequeue uc_swdec_pending_queue\n", __func__); |
208 | cnt++; | |
209 | } | |
210 | ||
211 | return cnt; | |
212 | } | |
213 | ||
214 | int rtw_enqueue_recvbuf23a_to_head(struct recv_buf *precvbuf, struct rtw_queue *queue) | |
215 | { | |
216 | spin_lock_bh(&queue->lock); | |
217 | ||
218 | list_del_init(&precvbuf->list); | |
219 | list_add(&precvbuf->list, get_list_head(queue)); | |
220 | ||
221 | spin_unlock_bh(&queue->lock); | |
222 | ||
223 | return _SUCCESS; | |
224 | } | |
225 | ||
226 | int rtw_enqueue_recvbuf23a(struct recv_buf *precvbuf, struct rtw_queue *queue) | |
227 | { | |
228 | unsigned long irqL; | |
831fa5f6 | 229 | |
5e93f352 LF |
230 | spin_lock_irqsave(&queue->lock, irqL); |
231 | ||
232 | list_del_init(&precvbuf->list); | |
233 | ||
234 | list_add_tail(&precvbuf->list, get_list_head(queue)); | |
235 | spin_unlock_irqrestore(&queue->lock, irqL); | |
236 | return _SUCCESS; | |
237 | } | |
238 | ||
239 | struct recv_buf *rtw_dequeue_recvbuf23a (struct rtw_queue *queue) | |
240 | { | |
241 | unsigned long irqL; | |
242 | struct recv_buf *precvbuf; | |
5e93f352 LF |
243 | |
244 | spin_lock_irqsave(&queue->lock, irqL); | |
245 | ||
8584394b GT |
246 | precvbuf = list_first_entry_or_null(&queue->queue, |
247 | struct recv_buf, list); | |
248 | if (precvbuf) | |
5e93f352 | 249 | list_del_init(&precvbuf->list); |
5e93f352 LF |
250 | |
251 | spin_unlock_irqrestore(&queue->lock, irqL); | |
252 | ||
253 | return precvbuf; | |
254 | } | |
255 | ||
256 | int recvframe_chkmic(struct rtw_adapter *adapter, | |
257 | struct recv_frame *precvframe); | |
258 | int recvframe_chkmic(struct rtw_adapter *adapter, | |
259 | struct recv_frame *precvframe) { | |
260 | ||
261 | int i, res = _SUCCESS; | |
262 | u32 datalen; | |
263 | u8 miccode[8]; | |
264 | u8 bmic_err = false, brpt_micerror = true; | |
99dc94f3 | 265 | u8 *pframe, *payload, *pframemic; |
5e93f352 | 266 | u8 *mickey; |
5e93f352 LF |
267 | struct sta_info *stainfo; |
268 | struct rx_pkt_attrib *prxattrib = &precvframe->attrib; | |
269 | struct security_priv *psecuritypriv = &adapter->securitypriv; | |
270 | ||
271 | struct mlme_ext_priv *pmlmeext = &adapter->mlmeextpriv; | |
272 | struct mlme_ext_info *pmlmeinfo = &pmlmeext->mlmext_info; | |
273 | ||
274 | ||
275 | stainfo = rtw_get_stainfo23a(&adapter->stapriv, &prxattrib->ta[0]); | |
276 | ||
9e3d6df2 | 277 | if (prxattrib->encrypt == WLAN_CIPHER_SUITE_TKIP) { |
5e93f352 | 278 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
90403aa1 | 279 | "recvframe_chkmic:prxattrib->encrypt == WLAN_CIPHER_SUITE_TKIP\n"); |
5e93f352 | 280 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
90403aa1 | 281 | "recvframe_chkmic:da = %pM\n", prxattrib->ra); |
5e93f352 LF |
282 | |
283 | /* calculate mic code */ | |
284 | if (stainfo != NULL) { | |
285 | if (is_multicast_ether_addr(prxattrib->ra)) { | |
286 | mickey = &psecuritypriv->dot118021XGrprxmickey[prxattrib->key_index].skey[0]; | |
287 | ||
288 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 | 289 | "recvframe_chkmic: bcmc key\n"); |
5e93f352 | 290 | |
9216c517 | 291 | if (!psecuritypriv->binstallGrpkey) { |
5e93f352 LF |
292 | res = _FAIL; |
293 | RT_TRACE(_module_rtl871x_recv_c_, | |
294 | _drv_err_, | |
90403aa1 | 295 | "recvframe_chkmic:didn't install group key!\n"); |
5e93f352 LF |
296 | DBG_8723A("\n recvframe_chkmic:didn't " |
297 | "install group key!!!!!!\n"); | |
298 | goto exit; | |
299 | } | |
300 | } else { | |
301 | mickey = &stainfo->dot11tkiprxmickey.skey[0]; | |
302 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 303 | "recvframe_chkmic: unicast key\n"); |
5e93f352 LF |
304 | } |
305 | ||
306 | /* icv_len included the mic code */ | |
307 | datalen = precvframe->pkt->len-prxattrib-> | |
308 | hdrlen-prxattrib->iv_len-prxattrib->icv_len - 8; | |
309 | pframe = precvframe->pkt->data; | |
310 | payload = pframe + prxattrib->hdrlen + | |
311 | prxattrib->iv_len; | |
312 | ||
313 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 JP |
314 | "prxattrib->iv_len =%d prxattrib->icv_len =%d\n", |
315 | prxattrib->iv_len, prxattrib->icv_len); | |
5e93f352 LF |
316 | |
317 | /* care the length of the data */ | |
318 | rtw_seccalctkipmic23a(mickey, pframe, payload, | |
319 | datalen, &miccode[0], | |
320 | (unsigned char)prxattrib->priority); | |
321 | ||
322 | pframemic = payload + datalen; | |
323 | ||
324 | bmic_err = false; | |
325 | ||
326 | for (i = 0; i < 8; i++) { | |
327 | if (miccode[i] != *(pframemic + i)) { | |
328 | RT_TRACE(_module_rtl871x_recv_c_, | |
329 | _drv_err_, | |
90403aa1 JP |
330 | "recvframe_chkmic:miccode[%d](%02x) != *(pframemic+%d)(%02x)\n", |
331 | i, miccode[i], | |
332 | i, *(pframemic + i)); | |
5e93f352 LF |
333 | bmic_err = true; |
334 | } | |
335 | } | |
336 | ||
337 | if (bmic_err == true) { | |
338 | int i; | |
831fa5f6 | 339 | |
5e93f352 | 340 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
78f73d92 DL |
341 | "*(pframemic-8)-*(pframemic-1) =%*phC\n", |
342 | 8, pframemic - 8); | |
5e93f352 | 343 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
78f73d92 DL |
344 | "*(pframemic-16)-*(pframemic-9) =%*phC\n", |
345 | 8, pframemic - 16); | |
5e93f352 LF |
346 | |
347 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 JP |
348 | "====== demp packet (len =%d) ======\n", |
349 | precvframe->pkt->len); | |
5e93f352 LF |
350 | for (i = 0; i < precvframe->pkt->len; i = i + 8) { |
351 | RT_TRACE(_module_rtl871x_recv_c_, | |
78f73d92 DL |
352 | _drv_err_, "%*phC\n", |
353 | 8, precvframe->pkt->data + i); | |
5e93f352 LF |
354 | } |
355 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 JP |
356 | "====== demp packet end [len =%d]======\n", |
357 | precvframe->pkt->len); | |
5e93f352 | 358 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
90403aa1 | 359 | "hrdlen =%d\n", prxattrib->hdrlen); |
5e93f352 LF |
360 | |
361 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 JP |
362 | "ra = %pM psecuritypriv->binstallGrpkey =%d\n", |
363 | prxattrib->ra, | |
364 | psecuritypriv->binstallGrpkey); | |
5e93f352 LF |
365 | |
366 | /* double check key_index for some timing | |
367 | issue, cannot compare with | |
368 | psecuritypriv->dot118021XGrpKeyid also | |
369 | cause timing issue */ | |
370 | if ((is_multicast_ether_addr(prxattrib->ra)) && | |
371 | (prxattrib->key_index != | |
372 | pmlmeinfo->key_index)) | |
373 | brpt_micerror = false; | |
374 | ||
375 | if ((prxattrib->bdecrypted == true) && | |
376 | (brpt_micerror == true)) { | |
377 | rtw_handle_tkip_mic_err23a(adapter, (u8)is_multicast_ether_addr(prxattrib->ra)); | |
90403aa1 JP |
378 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
379 | "mic error :prxattrib->bdecrypted =%d\n", | |
380 | prxattrib->bdecrypted); | |
5e93f352 LF |
381 | DBG_8723A(" mic error :prxattrib->" |
382 | "bdecrypted =%d\n", | |
383 | prxattrib->bdecrypted); | |
384 | } else { | |
385 | RT_TRACE(_module_rtl871x_recv_c_, | |
386 | _drv_err_, | |
90403aa1 JP |
387 | "mic error :prxattrib->bdecrypted =%d\n", |
388 | prxattrib->bdecrypted); | |
5e93f352 LF |
389 | DBG_8723A(" mic error :prxattrib->" |
390 | "bdecrypted =%d\n", | |
391 | prxattrib->bdecrypted); | |
392 | } | |
393 | ||
394 | res = _FAIL; | |
395 | } else { | |
396 | /* mic checked ok */ | |
9216c517 JS |
397 | if (!psecuritypriv->bcheck_grpkey && |
398 | is_multicast_ether_addr(prxattrib->ra)) { | |
399 | psecuritypriv->bcheck_grpkey = 1; | |
5e93f352 LF |
400 | RT_TRACE(_module_rtl871x_recv_c_, |
401 | _drv_err_, | |
90403aa1 | 402 | "psecuritypriv->bcheck_grpkey = true\n"); |
5e93f352 LF |
403 | } |
404 | } | |
405 | } else { | |
406 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 407 | "recvframe_chkmic: rtw_get_stainfo23a ==NULL!!!\n"); |
5e93f352 LF |
408 | } |
409 | ||
410 | skb_trim(precvframe->pkt, precvframe->pkt->len - 8); | |
411 | } | |
412 | ||
413 | exit: | |
414 | ||
415 | ||
416 | ||
417 | return res; | |
418 | } | |
419 | ||
420 | /* decrypt and set the ivlen, icvlen of the recv_frame */ | |
421 | struct recv_frame *decryptor(struct rtw_adapter *padapter, | |
422 | struct recv_frame *precv_frame); | |
423 | struct recv_frame *decryptor(struct rtw_adapter *padapter, | |
424 | struct recv_frame *precv_frame) | |
425 | { | |
426 | struct rx_pkt_attrib *prxattrib = &precv_frame->attrib; | |
427 | struct security_priv *psecuritypriv = &padapter->securitypriv; | |
428 | struct recv_frame *return_packet = precv_frame; | |
69632480 | 429 | int res = _SUCCESS; |
5e93f352 LF |
430 | |
431 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 JP |
432 | "prxstat->decrypted =%x prxattrib->encrypt = 0x%03x\n", |
433 | prxattrib->bdecrypted, prxattrib->encrypt); | |
5e93f352 LF |
434 | |
435 | if (prxattrib->encrypt > 0) { | |
436 | u8 *iv = precv_frame->pkt->data + prxattrib->hdrlen; | |
831fa5f6 | 437 | |
5e93f352 LF |
438 | prxattrib->key_index = (((iv[3]) >> 6) & 0x3); |
439 | ||
440 | if (prxattrib->key_index > WEP_KEYS) { | |
441 | DBG_8723A("prxattrib->key_index(%d) > WEP_KEYS\n", | |
442 | prxattrib->key_index); | |
443 | ||
444 | switch (prxattrib->encrypt) { | |
9e3d6df2 JS |
445 | case WLAN_CIPHER_SUITE_WEP40: |
446 | case WLAN_CIPHER_SUITE_WEP104: | |
5e93f352 LF |
447 | prxattrib->key_index = |
448 | psecuritypriv->dot11PrivacyKeyIndex; | |
449 | break; | |
9e3d6df2 JS |
450 | case WLAN_CIPHER_SUITE_TKIP: |
451 | case WLAN_CIPHER_SUITE_CCMP: | |
5e93f352 LF |
452 | default: |
453 | prxattrib->key_index = | |
454 | psecuritypriv->dot118021XGrpKeyid; | |
455 | break; | |
456 | } | |
457 | } | |
458 | } | |
459 | ||
460 | if ((prxattrib->encrypt > 0) && ((prxattrib->bdecrypted == 0))) { | |
9216c517 | 461 | psecuritypriv->hw_decrypted = 0; |
5e93f352 | 462 | switch (prxattrib->encrypt) { |
9e3d6df2 JS |
463 | case WLAN_CIPHER_SUITE_WEP40: |
464 | case WLAN_CIPHER_SUITE_WEP104: | |
5e93f352 LF |
465 | rtw_wep_decrypt23a(padapter, precv_frame); |
466 | break; | |
9e3d6df2 | 467 | case WLAN_CIPHER_SUITE_TKIP: |
5e93f352 LF |
468 | res = rtw_tkip_decrypt23a(padapter, precv_frame); |
469 | break; | |
9e3d6df2 | 470 | case WLAN_CIPHER_SUITE_CCMP: |
5e93f352 LF |
471 | res = rtw_aes_decrypt23a(padapter, precv_frame); |
472 | break; | |
473 | default: | |
474 | break; | |
475 | } | |
476 | } else if (prxattrib->bdecrypted == 1 && prxattrib->encrypt > 0 && | |
477 | (psecuritypriv->busetkipkey == 1 || | |
9e3d6df2 | 478 | prxattrib->encrypt != WLAN_CIPHER_SUITE_TKIP)) { |
9216c517 | 479 | psecuritypriv->hw_decrypted = 1; |
5e93f352 LF |
480 | } |
481 | ||
482 | if (res == _FAIL) { | |
c5779a0d | 483 | rtw_free_recvframe23a(return_packet); |
5e93f352 LF |
484 | return_packet = NULL; |
485 | } | |
486 | ||
487 | ||
488 | ||
489 | return return_packet; | |
490 | } | |
491 | ||
492 | /* set the security information in the recv_frame */ | |
493 | static struct recv_frame *portctrl(struct rtw_adapter *adapter, | |
494 | struct recv_frame *precv_frame) | |
495 | { | |
7d0d2b15 | 496 | u8 *psta_addr, *ptr; |
5e93f352 LF |
497 | uint auth_alg; |
498 | struct recv_frame *pfhdr; | |
499 | struct sta_info *psta; | |
500 | struct sta_priv *pstapriv ; | |
501 | struct recv_frame *prtnframe; | |
514c485c | 502 | u16 ether_type; |
7dd1e720 | 503 | u16 eapol_type = ETH_P_PAE;/* for Funia BD's WPA issue */ |
5e93f352 LF |
504 | struct rx_pkt_attrib *pattrib; |
505 | ||
506 | pstapriv = &adapter->stapriv; | |
5e93f352 LF |
507 | |
508 | auth_alg = adapter->securitypriv.dot11AuthAlgrthm; | |
509 | ||
5e93f352 LF |
510 | pfhdr = precv_frame; |
511 | pattrib = &pfhdr->attrib; | |
512 | psta_addr = pattrib->ta; | |
7d0d2b15 | 513 | psta = rtw_get_stainfo23a(pstapriv, psta_addr); |
5e93f352 LF |
514 | |
515 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 JP |
516 | "########portctrl:adapter->securitypriv.dot11AuthAlgrthm =%d\n", |
517 | adapter->securitypriv.dot11AuthAlgrthm); | |
5e93f352 | 518 | |
a0c5ff0b JS |
519 | prtnframe = precv_frame; |
520 | ||
514c485c JS |
521 | if (auth_alg == dot11AuthAlgrthm_8021X) { |
522 | /* get ether_type */ | |
94b080bc JS |
523 | ptr = pfhdr->pkt->data + pfhdr->attrib.hdrlen; |
524 | ||
525 | ether_type = (ptr[6] << 8) | ptr[7]; | |
514c485c | 526 | |
a0c5ff0b | 527 | if (psta && psta->ieee8021x_blocked) { |
5e93f352 LF |
528 | /* blocked */ |
529 | /* only accept EAPOL frame */ | |
530 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 | 531 | "########portctrl:psta->ieee8021x_blocked ==1\n"); |
5e93f352 | 532 | |
a0c5ff0b | 533 | if (ether_type != eapol_type) { |
5e93f352 | 534 | /* free this frame */ |
c5779a0d | 535 | rtw_free_recvframe23a(precv_frame); |
5e93f352 LF |
536 | prtnframe = NULL; |
537 | } | |
5e93f352 | 538 | } |
5e93f352 LF |
539 | } |
540 | ||
514c485c | 541 | return prtnframe; |
5e93f352 LF |
542 | } |
543 | ||
544 | int recv_decache(struct recv_frame *precv_frame, u8 bretry, | |
545 | struct stainfo_rxcache *prxcache); | |
546 | int recv_decache(struct recv_frame *precv_frame, u8 bretry, | |
547 | struct stainfo_rxcache *prxcache) | |
548 | { | |
549 | int tid = precv_frame->attrib.priority; | |
550 | ||
551 | u16 seq_ctrl = ((precv_frame->attrib.seq_num & 0xffff) << 4) | | |
552 | (precv_frame->attrib.frag_num & 0xf); | |
553 | ||
554 | ||
555 | ||
556 | if (tid > 15) { | |
557 | RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, | |
90403aa1 JP |
558 | "recv_decache, (tid>15)! seq_ctrl = 0x%x, tid = 0x%x\n", |
559 | seq_ctrl, tid); | |
5e93f352 LF |
560 | |
561 | return _FAIL; | |
562 | } | |
563 | ||
564 | if (1) { /* if (bretry) */ | |
565 | if (seq_ctrl == prxcache->tid_rxseq[tid]) { | |
566 | RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, | |
90403aa1 JP |
567 | "recv_decache, seq_ctrl = 0x%x, tid = 0x%x, tid_rxseq = 0x%x\n", |
568 | seq_ctrl, tid, prxcache->tid_rxseq[tid]); | |
5e93f352 LF |
569 | |
570 | return _FAIL; | |
571 | } | |
572 | } | |
573 | ||
574 | prxcache->tid_rxseq[tid] = seq_ctrl; | |
575 | ||
576 | ||
577 | ||
578 | return _SUCCESS; | |
579 | } | |
580 | ||
581 | void process23a_pwrbit_data(struct rtw_adapter *padapter, | |
582 | struct recv_frame *precv_frame); | |
583 | void process23a_pwrbit_data(struct rtw_adapter *padapter, | |
584 | struct recv_frame *precv_frame) | |
585 | { | |
586 | #ifdef CONFIG_8723AU_AP_MODE | |
587 | unsigned char pwrbit; | |
588 | struct sk_buff *skb = precv_frame->pkt; | |
589 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
590 | struct rx_pkt_attrib *pattrib = &precv_frame->attrib; | |
591 | struct sta_priv *pstapriv = &padapter->stapriv; | |
e847655a | 592 | struct sta_info *psta; |
5e93f352 LF |
593 | |
594 | psta = rtw_get_stainfo23a(pstapriv, pattrib->src); | |
595 | ||
596 | if (psta) { | |
597 | pwrbit = ieee80211_has_pm(hdr->frame_control); | |
598 | ||
599 | if (pwrbit) { | |
600 | if (!(psta->state & WIFI_SLEEP_STATE)) | |
601 | stop_sta_xmit23a(padapter, psta); | |
602 | } else { | |
603 | if (psta->state & WIFI_SLEEP_STATE) | |
604 | wakeup_sta_to_xmit23a(padapter, psta); | |
605 | } | |
606 | } | |
607 | ||
608 | #endif | |
609 | } | |
610 | ||
611 | void process_wmmps_data(struct rtw_adapter *padapter, | |
612 | struct recv_frame *precv_frame); | |
613 | void process_wmmps_data(struct rtw_adapter *padapter, | |
614 | struct recv_frame *precv_frame) | |
615 | { | |
616 | #ifdef CONFIG_8723AU_AP_MODE | |
617 | struct rx_pkt_attrib *pattrib = &precv_frame->attrib; | |
618 | struct sta_priv *pstapriv = &padapter->stapriv; | |
e847655a | 619 | struct sta_info *psta; |
5e93f352 LF |
620 | |
621 | psta = rtw_get_stainfo23a(pstapriv, pattrib->src); | |
622 | ||
623 | if (!psta) | |
624 | return; | |
625 | ||
626 | ||
627 | if (!psta->qos_option) | |
628 | return; | |
629 | ||
630 | if (!(psta->qos_info & 0xf)) | |
631 | return; | |
632 | ||
633 | if (psta->state & WIFI_SLEEP_STATE) { | |
634 | u8 wmmps_ac = 0; | |
635 | ||
636 | switch (pattrib->priority) { | |
637 | case 1: | |
638 | case 2: | |
639 | wmmps_ac = psta->uapsd_bk & BIT(1); | |
640 | break; | |
641 | case 4: | |
642 | case 5: | |
643 | wmmps_ac = psta->uapsd_vi & BIT(1); | |
644 | break; | |
645 | case 6: | |
646 | case 7: | |
647 | wmmps_ac = psta->uapsd_vo & BIT(1); | |
648 | break; | |
649 | case 0: | |
650 | case 3: | |
651 | default: | |
652 | wmmps_ac = psta->uapsd_be & BIT(1); | |
653 | break; | |
654 | } | |
655 | ||
656 | if (wmmps_ac) { | |
657 | if (psta->sleepq_ac_len > 0) { | |
658 | /* process received triggered frame */ | |
659 | xmit_delivery_enabled_frames23a(padapter, psta); | |
660 | } else { | |
661 | /* issue one qos null frame with More data bit = 0 and the EOSP bit set (= 1) */ | |
662 | issue_qos_nulldata23a(padapter, psta->hwaddr, | |
663 | (u16)pattrib->priority, | |
664 | 0, 0); | |
665 | } | |
666 | } | |
667 | } | |
668 | ||
669 | #endif | |
670 | } | |
671 | ||
672 | static void count_rx_stats(struct rtw_adapter *padapter, | |
673 | struct recv_frame *prframe, struct sta_info *sta) | |
674 | { | |
675 | int sz; | |
676 | struct sta_info *psta = NULL; | |
677 | struct stainfo_stats *pstats = NULL; | |
678 | struct rx_pkt_attrib *pattrib = & prframe->attrib; | |
679 | struct recv_priv *precvpriv = &padapter->recvpriv; | |
680 | ||
681 | sz = prframe->pkt->len; | |
682 | precvpriv->rx_bytes += sz; | |
683 | ||
684 | padapter->mlmepriv.LinkDetectInfo.NumRxOkInPeriod++; | |
685 | ||
686 | if ((!is_broadcast_ether_addr(pattrib->dst)) && | |
687 | (!is_multicast_ether_addr(pattrib->dst))) | |
688 | padapter->mlmepriv.LinkDetectInfo.NumRxUnicastOkInPeriod++; | |
689 | ||
690 | if (sta) | |
691 | psta = sta; | |
692 | else | |
693 | psta = prframe->psta; | |
694 | ||
695 | if (psta) { | |
696 | pstats = &psta->sta_stats; | |
697 | ||
698 | pstats->rx_data_pkts++; | |
699 | pstats->rx_bytes += sz; | |
700 | } | |
701 | } | |
702 | ||
703 | static int sta2sta_data_frame(struct rtw_adapter *adapter, | |
704 | struct recv_frame *precv_frame, | |
705 | struct sta_info**psta) | |
706 | { | |
707 | struct sk_buff *skb = precv_frame->pkt; | |
708 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
709 | int ret = _SUCCESS; | |
710 | struct rx_pkt_attrib *pattrib = & precv_frame->attrib; | |
711 | struct sta_priv *pstapriv = &adapter->stapriv; | |
712 | struct mlme_priv *pmlmepriv = &adapter->mlmepriv; | |
713 | u8 *mybssid = get_bssid(pmlmepriv); | |
714 | u8 *myhwaddr = myid(&adapter->eeprompriv); | |
715 | u8 *sta_addr = NULL; | |
716 | int bmcast = is_multicast_ether_addr(pattrib->dst); | |
717 | ||
718 | ||
719 | ||
f2f97035 JS |
720 | if (check_fwstate(pmlmepriv, WIFI_ADHOC_STATE) || |
721 | check_fwstate(pmlmepriv, WIFI_ADHOC_MASTER_STATE)) { | |
5e93f352 LF |
722 | |
723 | /* filter packets that SA is myself or multicast or broadcast */ | |
724 | if (ether_addr_equal(myhwaddr, pattrib->src)) { | |
725 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 726 | "SA == myself\n"); |
5e93f352 LF |
727 | ret = _FAIL; |
728 | goto exit; | |
729 | } | |
730 | ||
731 | if (!ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) { | |
732 | ret = _FAIL; | |
733 | goto exit; | |
734 | } | |
735 | ||
736 | if (ether_addr_equal(pattrib->bssid, "\x0\x0\x0\x0\x0\x0") || | |
737 | ether_addr_equal(mybssid, "\x0\x0\x0\x0\x0\x0") || | |
738 | !ether_addr_equal(pattrib->bssid, mybssid)) { | |
739 | ret = _FAIL; | |
740 | goto exit; | |
741 | } | |
742 | ||
743 | sta_addr = pattrib->src; | |
f2f97035 | 744 | } else if (check_fwstate(pmlmepriv, WIFI_STATION_STATE)) { |
5e93f352 LF |
745 | /* For Station mode, sa and bssid should always be BSSID, |
746 | and DA is my mac-address */ | |
747 | if (!ether_addr_equal(pattrib->bssid, pattrib->src)) { | |
748 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 749 | "bssid != TA under STATION_MODE; drop pkt\n"); |
5e93f352 LF |
750 | ret = _FAIL; |
751 | goto exit; | |
752 | } | |
753 | ||
754 | sta_addr = pattrib->bssid; | |
755 | ||
f2f97035 | 756 | } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { |
5e93f352 LF |
757 | if (bmcast) { |
758 | /* For AP mode, if DA == MCAST, then BSSID should be also MCAST */ | |
759 | if (!is_multicast_ether_addr(pattrib->bssid)) { | |
760 | ret = _FAIL; | |
761 | goto exit; | |
762 | } | |
763 | } else { /* not mc-frame */ | |
764 | /* For AP mode, if DA is non-MCAST, then it must | |
765 | be BSSID, and bssid == BSSID */ | |
766 | if (!ether_addr_equal(pattrib->bssid, pattrib->dst)) { | |
767 | ret = _FAIL; | |
768 | goto exit; | |
769 | } | |
770 | ||
771 | sta_addr = pattrib->src; | |
772 | } | |
f2f97035 | 773 | } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE)) { |
5e93f352 LF |
774 | ether_addr_copy(pattrib->dst, hdr->addr1); |
775 | ether_addr_copy(pattrib->src, hdr->addr2); | |
776 | ether_addr_copy(pattrib->bssid, hdr->addr3); | |
777 | ether_addr_copy(pattrib->ra, pattrib->dst); | |
778 | ether_addr_copy(pattrib->ta, pattrib->src); | |
779 | ||
780 | sta_addr = mybssid; | |
781 | } else { | |
782 | ret = _FAIL; | |
783 | } | |
784 | ||
785 | if (bmcast) | |
786 | *psta = rtw_get_bcmc_stainfo23a(adapter); | |
787 | else | |
788 | *psta = rtw_get_stainfo23a(pstapriv, sta_addr); /* get ap_info */ | |
789 | ||
790 | if (*psta == NULL) { | |
90403aa1 JP |
791 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, |
792 | "can't get psta under sta2sta_data_frame ; drop pkt\n"); | |
5e93f352 LF |
793 | ret = _FAIL; |
794 | goto exit; | |
795 | } | |
796 | ||
797 | exit: | |
798 | ||
799 | return ret; | |
800 | } | |
801 | ||
802 | int ap2sta_data_frame(struct rtw_adapter *adapter, | |
803 | struct recv_frame *precv_frame, | |
804 | struct sta_info **psta); | |
805 | int ap2sta_data_frame(struct rtw_adapter *adapter, | |
806 | struct recv_frame *precv_frame, | |
807 | struct sta_info **psta) | |
808 | { | |
809 | struct sk_buff *skb = precv_frame->pkt; | |
810 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
811 | struct rx_pkt_attrib *pattrib = & precv_frame->attrib; | |
812 | int ret = _SUCCESS; | |
813 | struct sta_priv *pstapriv = &adapter->stapriv; | |
814 | struct mlme_priv *pmlmepriv = &adapter->mlmepriv; | |
815 | u8 *mybssid = get_bssid(pmlmepriv); | |
816 | u8 *myhwaddr = myid(&adapter->eeprompriv); | |
817 | int bmcast = is_multicast_ether_addr(pattrib->dst); | |
818 | ||
819 | ||
820 | ||
f2f97035 JS |
821 | if (check_fwstate(pmlmepriv, WIFI_STATION_STATE) && |
822 | (check_fwstate(pmlmepriv, _FW_LINKED) || | |
823 | check_fwstate(pmlmepriv, _FW_UNDER_LINKING))) { | |
5e93f352 LF |
824 | |
825 | /* filter packets that SA is myself or multicast or broadcast */ | |
826 | if (ether_addr_equal(myhwaddr, pattrib->src)) { | |
827 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 828 | "SA == myself\n"); |
5e93f352 LF |
829 | ret = _FAIL; |
830 | goto exit; | |
831 | } | |
832 | ||
833 | /* da should be for me */ | |
834 | if (!ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) { | |
835 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 JP |
836 | "ap2sta_data_frame: compare DA failed; DA=%pM\n", |
837 | pattrib->dst); | |
5e93f352 LF |
838 | ret = _FAIL; |
839 | goto exit; | |
840 | } | |
841 | ||
842 | /* check BSSID */ | |
843 | if (ether_addr_equal(pattrib->bssid, "\x0\x0\x0\x0\x0\x0") || | |
844 | ether_addr_equal(mybssid, "\x0\x0\x0\x0\x0\x0") || | |
845 | !ether_addr_equal(pattrib->bssid, mybssid)) { | |
846 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 JP |
847 | "ap2sta_data_frame: compare BSSID failed; BSSID=%pM\n", |
848 | pattrib->bssid); | |
5e93f352 | 849 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
90403aa1 | 850 | "mybssid=%pM\n", mybssid); |
5e93f352 LF |
851 | |
852 | if (!bmcast) { | |
ea072786 JP |
853 | DBG_8723A("issue_deauth23a to the nonassociated ap=%pM for the reason(7)\n", |
854 | pattrib->bssid); | |
5e93f352 LF |
855 | issue_deauth23a(adapter, pattrib->bssid, |
856 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
857 | } | |
858 | ||
859 | ret = _FAIL; | |
860 | goto exit; | |
861 | } | |
862 | ||
863 | if (bmcast) | |
864 | *psta = rtw_get_bcmc_stainfo23a(adapter); | |
865 | else | |
866 | /* get ap_info */ | |
867 | *psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid); | |
868 | ||
869 | if (*psta == NULL) { | |
870 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 871 | "ap2sta: can't get psta under STATION_MODE; drop pkt\n"); |
5e93f352 LF |
872 | ret = _FAIL; |
873 | goto exit; | |
874 | } | |
875 | ||
876 | if (ieee80211_is_nullfunc(hdr->frame_control)) { | |
877 | /* No data, will not indicate to upper layer, | |
878 | temporily count it here */ | |
879 | count_rx_stats(adapter, precv_frame, *psta); | |
880 | ret = RTW_RX_HANDLED; | |
881 | goto exit; | |
882 | } | |
883 | ||
f2f97035 JS |
884 | } else if (check_fwstate(pmlmepriv, WIFI_MP_STATE) && |
885 | check_fwstate(pmlmepriv, _FW_LINKED)) { | |
5e93f352 LF |
886 | ether_addr_copy(pattrib->dst, hdr->addr1); |
887 | ether_addr_copy(pattrib->src, hdr->addr2); | |
888 | ether_addr_copy(pattrib->bssid, hdr->addr3); | |
889 | ether_addr_copy(pattrib->ra, pattrib->dst); | |
890 | ether_addr_copy(pattrib->ta, pattrib->src); | |
891 | ||
892 | /* */ | |
893 | ether_addr_copy(pattrib->bssid, mybssid); | |
894 | ||
895 | /* get sta_info */ | |
896 | *psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid); | |
897 | if (*psta == NULL) { | |
898 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 899 | "can't get psta under MP_MODE ; drop pkt\n"); |
5e93f352 LF |
900 | ret = _FAIL; |
901 | goto exit; | |
902 | } | |
f2f97035 | 903 | } else if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { |
5e93f352 LF |
904 | /* Special case */ |
905 | ret = RTW_RX_HANDLED; | |
906 | goto exit; | |
907 | } else { | |
908 | if (ether_addr_equal(myhwaddr, pattrib->dst) && !bmcast) { | |
909 | *psta = rtw_get_stainfo23a(pstapriv, pattrib->bssid); | |
910 | if (*psta == NULL) { | |
ea072786 JP |
911 | DBG_8723A("issue_deauth23a to the ap=%pM for the reason(7)\n", |
912 | pattrib->bssid); | |
5e93f352 LF |
913 | |
914 | issue_deauth23a(adapter, pattrib->bssid, | |
915 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
916 | } | |
917 | } | |
918 | ||
919 | ret = _FAIL; | |
920 | } | |
921 | ||
922 | exit: | |
923 | ||
924 | ||
925 | ||
926 | return ret; | |
927 | } | |
928 | ||
929 | int sta2ap_data_frame(struct rtw_adapter *adapter, | |
930 | struct recv_frame *precv_frame, | |
931 | struct sta_info **psta); | |
932 | int sta2ap_data_frame(struct rtw_adapter *adapter, | |
933 | struct recv_frame *precv_frame, | |
934 | struct sta_info **psta) | |
935 | { | |
936 | struct sk_buff *skb = precv_frame->pkt; | |
937 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
938 | struct rx_pkt_attrib *pattrib = & precv_frame->attrib; | |
939 | struct sta_priv *pstapriv = &adapter->stapriv; | |
940 | struct mlme_priv *pmlmepriv = &adapter->mlmepriv; | |
941 | unsigned char *mybssid = get_bssid(pmlmepriv); | |
942 | int ret = _SUCCESS; | |
943 | ||
944 | ||
945 | ||
f2f97035 | 946 | if (check_fwstate(pmlmepriv, WIFI_AP_STATE)) { |
5e93f352 LF |
947 | /* For AP mode, RA = BSSID, TX = STA(SRC_ADDR), A3 = DST_ADDR */ |
948 | if (!ether_addr_equal(pattrib->bssid, mybssid)) { | |
949 | ret = _FAIL; | |
950 | goto exit; | |
951 | } | |
952 | ||
953 | *psta = rtw_get_stainfo23a(pstapriv, pattrib->src); | |
954 | if (*psta == NULL) { | |
955 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 956 | "can't get psta under AP_MODE; drop pkt\n"); |
ea072786 JP |
957 | DBG_8723A("issue_deauth23a to sta=%pM for the reason(7)\n", |
958 | pattrib->src); | |
5e93f352 LF |
959 | |
960 | issue_deauth23a(adapter, pattrib->src, | |
961 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
962 | ||
963 | ret = RTW_RX_HANDLED; | |
964 | goto exit; | |
965 | } | |
966 | ||
967 | process23a_pwrbit_data(adapter, precv_frame); | |
968 | ||
969 | /* We only get here if it's a data frame, so no need to | |
970 | * confirm data frame type first */ | |
971 | if (ieee80211_is_data_qos(hdr->frame_control)) | |
972 | process_wmmps_data(adapter, precv_frame); | |
973 | ||
974 | if (ieee80211_is_nullfunc(hdr->frame_control)) { | |
975 | /* No data, will not indicate to upper layer, | |
976 | temporily count it here */ | |
977 | count_rx_stats(adapter, precv_frame, *psta); | |
978 | ret = RTW_RX_HANDLED; | |
979 | goto exit; | |
980 | } | |
981 | } else { | |
982 | u8 *myhwaddr = myid(&adapter->eeprompriv); | |
831fa5f6 | 983 | |
5e93f352 LF |
984 | if (!ether_addr_equal(pattrib->ra, myhwaddr)) { |
985 | ret = RTW_RX_HANDLED; | |
986 | goto exit; | |
987 | } | |
ea072786 JP |
988 | DBG_8723A("issue_deauth23a to sta=%pM for the reason(7)\n", |
989 | pattrib->src); | |
5e93f352 LF |
990 | issue_deauth23a(adapter, pattrib->src, |
991 | WLAN_REASON_CLASS3_FRAME_FROM_NONASSOC_STA); | |
992 | ret = RTW_RX_HANDLED; | |
993 | goto exit; | |
994 | } | |
995 | ||
996 | exit: | |
997 | ||
998 | ||
999 | ||
1000 | return ret; | |
1001 | } | |
1002 | ||
22220320 JS |
1003 | static int validate_recv_ctrl_frame(struct rtw_adapter *padapter, |
1004 | struct recv_frame *precv_frame) | |
5e93f352 LF |
1005 | { |
1006 | #ifdef CONFIG_8723AU_AP_MODE | |
1007 | struct rx_pkt_attrib *pattrib = &precv_frame->attrib; | |
1008 | struct sta_priv *pstapriv = &padapter->stapriv; | |
1009 | struct sk_buff *skb = precv_frame->pkt; | |
1010 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
5e93f352 LF |
1011 | |
1012 | if (!ieee80211_is_ctl(hdr->frame_control)) | |
1013 | return _FAIL; | |
1014 | ||
1015 | /* receive the frames that ra(a1) is my address */ | |
1016 | if (!ether_addr_equal(hdr->addr1, myid(&padapter->eeprompriv))) | |
1017 | return _FAIL; | |
1018 | ||
1019 | /* only handle ps-poll */ | |
1020 | if (ieee80211_is_pspoll(hdr->frame_control)) { | |
c51e886f | 1021 | struct ieee80211_pspoll *psp = (struct ieee80211_pspoll *)hdr; |
5e93f352 LF |
1022 | u16 aid; |
1023 | u8 wmmps_ac = 0; | |
1024 | struct sta_info *psta = NULL; | |
1025 | ||
c51e886f | 1026 | aid = le16_to_cpu(psp->aid) & 0x3fff; |
5e93f352 LF |
1027 | psta = rtw_get_stainfo23a(pstapriv, hdr->addr2); |
1028 | ||
c51e886f | 1029 | if (!psta || psta->aid != aid) |
5e93f352 LF |
1030 | return _FAIL; |
1031 | ||
1032 | /* for rx pkt statistics */ | |
1033 | psta->sta_stats.rx_ctrl_pkts++; | |
1034 | ||
1035 | switch (pattrib->priority) { | |
1036 | case 1: | |
1037 | case 2: | |
1038 | wmmps_ac = psta->uapsd_bk & BIT(0); | |
1039 | break; | |
1040 | case 4: | |
1041 | case 5: | |
1042 | wmmps_ac = psta->uapsd_vi & BIT(0); | |
1043 | break; | |
1044 | case 6: | |
1045 | case 7: | |
1046 | wmmps_ac = psta->uapsd_vo & BIT(0); | |
1047 | break; | |
1048 | case 0: | |
1049 | case 3: | |
1050 | default: | |
1051 | wmmps_ac = psta->uapsd_be & BIT(0); | |
1052 | break; | |
1053 | } | |
1054 | ||
1055 | if (wmmps_ac) | |
1056 | return _FAIL; | |
1057 | ||
1058 | if (psta->state & WIFI_STA_ALIVE_CHK_STATE) { | |
1059 | DBG_8723A("%s alive check-rx ps-poll\n", __func__); | |
1060 | psta->expire_to = pstapriv->expire_to; | |
1061 | psta->state ^= WIFI_STA_ALIVE_CHK_STATE; | |
1062 | } | |
1063 | ||
1064 | if ((psta->state & WIFI_SLEEP_STATE) && | |
1065 | (pstapriv->sta_dz_bitmap & CHKBIT(psta->aid))) { | |
8584394b | 1066 | struct list_head *xmitframe_phead; |
5e93f352 LF |
1067 | struct xmit_frame *pxmitframe; |
1068 | struct xmit_priv *pxmitpriv = &padapter->xmitpriv; | |
1069 | ||
1070 | spin_lock_bh(&pxmitpriv->lock); | |
1071 | ||
1072 | xmitframe_phead = get_list_head(&psta->sleep_q); | |
8584394b GT |
1073 | pxmitframe = list_first_entry_or_null(xmitframe_phead, |
1074 | struct xmit_frame, | |
1075 | list); | |
1076 | if (pxmitframe) { | |
5e93f352 LF |
1077 | list_del_init(&pxmitframe->list); |
1078 | ||
1079 | psta->sleepq_len--; | |
1080 | ||
1081 | if (psta->sleepq_len>0) | |
1082 | pxmitframe->attrib.mdata = 1; | |
a82b4b01 | 1083 | else |
5e93f352 LF |
1084 | pxmitframe->attrib.mdata = 0; |
1085 | ||
1086 | pxmitframe->attrib.triggered = 1; | |
1087 | ||
638443dc JS |
1088 | rtl8723au_hal_xmitframe_enqueue(padapter, |
1089 | pxmitframe); | |
5e93f352 LF |
1090 | |
1091 | if (psta->sleepq_len == 0) { | |
1092 | pstapriv->tim_bitmap &= ~CHKBIT(psta->aid); | |
df220942 JS |
1093 | update_beacon23a(padapter, WLAN_EID_TIM, |
1094 | NULL, false); | |
5e93f352 LF |
1095 | } |
1096 | ||
5e93f352 LF |
1097 | spin_unlock_bh(&pxmitpriv->lock); |
1098 | ||
1099 | } else { | |
5e93f352 LF |
1100 | spin_unlock_bh(&pxmitpriv->lock); |
1101 | ||
5e93f352 LF |
1102 | if (pstapriv->tim_bitmap & CHKBIT(psta->aid)) { |
1103 | if (psta->sleepq_len == 0) { | |
1104 | DBG_8723A("no buffered packets " | |
1105 | "to xmit\n"); | |
1106 | ||
1107 | /* issue nulldata with More data bit = 0 to indicate we have no buffered packets */ | |
1108 | issue_nulldata23a(padapter, | |
1109 | psta->hwaddr, | |
1110 | 0, 0, 0); | |
1111 | } else { | |
1112 | DBG_8723A("error!psta->sleepq" | |
1113 | "_len =%d\n", | |
1114 | psta->sleepq_len); | |
1115 | psta->sleepq_len = 0; | |
1116 | } | |
1117 | ||
1118 | pstapriv->tim_bitmap &= ~CHKBIT(psta->aid); | |
1119 | ||
df220942 JS |
1120 | update_beacon23a(padapter, WLAN_EID_TIM, |
1121 | NULL, false); | |
5e93f352 LF |
1122 | } |
1123 | } | |
1124 | } | |
1125 | } | |
1126 | ||
1127 | #endif | |
1128 | return _FAIL; | |
1129 | } | |
1130 | ||
4e66cf09 | 1131 | struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter, |
5e93f352 | 1132 | struct recv_frame *precv_frame); |
22220320 JS |
1133 | static int validate_recv_mgnt_frame(struct rtw_adapter *padapter, |
1134 | struct recv_frame *precv_frame) | |
5e93f352 LF |
1135 | { |
1136 | struct sta_info *psta; | |
1137 | struct sk_buff *skb; | |
1138 | struct ieee80211_hdr *hdr; | |
5e93f352 LF |
1139 | |
1140 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 | 1141 | "+validate_recv_mgnt_frame\n"); |
5e93f352 LF |
1142 | |
1143 | precv_frame = recvframe_chk_defrag23a(padapter, precv_frame); | |
1144 | if (precv_frame == NULL) { | |
1145 | RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, | |
90403aa1 | 1146 | "%s: fragment packet\n", __func__); |
5e93f352 LF |
1147 | return _SUCCESS; |
1148 | } | |
1149 | ||
1150 | skb = precv_frame->pkt; | |
1151 | hdr = (struct ieee80211_hdr *) skb->data; | |
1152 | ||
1153 | /* for rx pkt statistics */ | |
1154 | psta = rtw_get_stainfo23a(&padapter->stapriv, hdr->addr2); | |
1155 | if (psta) { | |
1156 | psta->sta_stats.rx_mgnt_pkts++; | |
1157 | ||
1158 | if (ieee80211_is_beacon(hdr->frame_control)) | |
1159 | psta->sta_stats.rx_beacon_pkts++; | |
1160 | else if (ieee80211_is_probe_req(hdr->frame_control)) | |
1161 | psta->sta_stats.rx_probereq_pkts++; | |
1162 | else if (ieee80211_is_probe_resp(hdr->frame_control)) { | |
1163 | if (ether_addr_equal(padapter->eeprompriv.mac_addr, | |
1164 | hdr->addr1)) | |
1165 | psta->sta_stats.rx_probersp_pkts++; | |
1166 | else if (is_broadcast_ether_addr(hdr->addr1) || | |
1167 | is_multicast_ether_addr(hdr->addr1)) | |
1168 | psta->sta_stats.rx_probersp_bm_pkts++; | |
1169 | else | |
1170 | psta->sta_stats.rx_probersp_uo_pkts++; | |
1171 | } | |
1172 | } | |
1173 | ||
1174 | mgt_dispatcher23a(padapter, precv_frame); | |
1175 | ||
1176 | return _SUCCESS; | |
1177 | } | |
1178 | ||
22220320 JS |
1179 | static int validate_recv_data_frame(struct rtw_adapter *adapter, |
1180 | struct recv_frame *precv_frame) | |
5e93f352 LF |
1181 | { |
1182 | u8 bretry; | |
aa66fbb9 | 1183 | u8 *psa, *pda; |
5e93f352 | 1184 | struct sta_info *psta = NULL; |
5e93f352 LF |
1185 | struct rx_pkt_attrib *pattrib = & precv_frame->attrib; |
1186 | struct security_priv *psecuritypriv = &adapter->securitypriv; | |
1187 | int ret = _SUCCESS; | |
1188 | struct sk_buff *skb = precv_frame->pkt; | |
1189 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
1190 | ||
1191 | ||
1192 | ||
1193 | bretry = ieee80211_has_retry(hdr->frame_control); | |
1194 | pda = ieee80211_get_DA(hdr); | |
1195 | psa = ieee80211_get_SA(hdr); | |
5e93f352 LF |
1196 | |
1197 | ether_addr_copy(pattrib->dst, pda); | |
1198 | ether_addr_copy(pattrib->src, psa); | |
1199 | ||
5ca12b78 JS |
1200 | switch (hdr->frame_control & |
1201 | cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS)) { | |
1202 | case cpu_to_le16(0): | |
aa66fbb9 | 1203 | ether_addr_copy(pattrib->bssid, hdr->addr3); |
5e93f352 LF |
1204 | ether_addr_copy(pattrib->ra, pda); |
1205 | ether_addr_copy(pattrib->ta, psa); | |
1206 | ret = sta2sta_data_frame(adapter, precv_frame, &psta); | |
1207 | break; | |
1208 | ||
5ca12b78 | 1209 | case cpu_to_le16(IEEE80211_FCTL_FROMDS): |
aa66fbb9 | 1210 | ether_addr_copy(pattrib->bssid, hdr->addr2); |
5e93f352 | 1211 | ether_addr_copy(pattrib->ra, pda); |
aa66fbb9 | 1212 | ether_addr_copy(pattrib->ta, hdr->addr2); |
5e93f352 LF |
1213 | ret = ap2sta_data_frame(adapter, precv_frame, &psta); |
1214 | break; | |
1215 | ||
5ca12b78 | 1216 | case cpu_to_le16(IEEE80211_FCTL_TODS): |
aa66fbb9 JS |
1217 | ether_addr_copy(pattrib->bssid, hdr->addr1); |
1218 | ether_addr_copy(pattrib->ra, hdr->addr1); | |
5e93f352 LF |
1219 | ether_addr_copy(pattrib->ta, psa); |
1220 | ret = sta2ap_data_frame(adapter, precv_frame, &psta); | |
1221 | break; | |
1222 | ||
5ca12b78 | 1223 | case cpu_to_le16(IEEE80211_FCTL_TODS | IEEE80211_FCTL_FROMDS): |
aa66fbb9 JS |
1224 | /* |
1225 | * There is no BSSID in this case, but the driver has been | |
1226 | * using addr1 so far, so keep it for now. | |
1227 | */ | |
1228 | ether_addr_copy(pattrib->bssid, hdr->addr1); | |
5e93f352 LF |
1229 | ether_addr_copy(pattrib->ra, hdr->addr1); |
1230 | ether_addr_copy(pattrib->ta, hdr->addr2); | |
1231 | ret = _FAIL; | |
90403aa1 | 1232 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, "case 3\n"); |
5e93f352 | 1233 | break; |
5e93f352 LF |
1234 | } |
1235 | ||
1236 | if ((ret == _FAIL) || (ret == RTW_RX_HANDLED)) | |
1237 | goto exit; | |
1238 | ||
1239 | if (!psta) { | |
1240 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 1241 | "after to_fr_ds_chk; psta == NULL\n"); |
5e93f352 LF |
1242 | ret = _FAIL; |
1243 | goto exit; | |
1244 | } | |
1245 | ||
5e93f352 LF |
1246 | precv_frame->psta = psta; |
1247 | ||
1248 | pattrib->hdrlen = sizeof(struct ieee80211_hdr_3addr); | |
1249 | if (ieee80211_has_a4(hdr->frame_control)) | |
1250 | pattrib->hdrlen += ETH_ALEN; | |
1251 | ||
1252 | /* parsing QC field */ | |
1253 | if (pattrib->qos == 1) { | |
1254 | __le16 *qptr = (__le16 *)ieee80211_get_qos_ctl(hdr); | |
1255 | u16 qos_ctrl = le16_to_cpu(*qptr); | |
1256 | ||
1257 | pattrib->priority = qos_ctrl & IEEE80211_QOS_CTL_TID_MASK; | |
1258 | pattrib->ack_policy = (qos_ctrl >> 5) & 3; | |
1259 | pattrib->amsdu = | |
1260 | (qos_ctrl & IEEE80211_QOS_CTL_A_MSDU_PRESENT) >> 7; | |
1261 | pattrib->hdrlen += IEEE80211_QOS_CTL_LEN; | |
1262 | ||
1263 | if (pattrib->priority != 0 && pattrib->priority != 3) { | |
1264 | adapter->recvpriv.bIsAnyNonBEPkts = true; | |
1265 | } | |
1266 | } else { | |
1267 | pattrib->priority = 0; | |
1268 | pattrib->ack_policy = 0; | |
1269 | pattrib->amsdu = 0; | |
1270 | } | |
1271 | ||
1272 | if (pattrib->order) { /* HT-CTRL 11n */ | |
1273 | pattrib->hdrlen += 4; | |
1274 | } | |
1275 | ||
1276 | precv_frame->preorder_ctrl = &psta->recvreorder_ctrl[pattrib->priority]; | |
1277 | ||
1278 | /* decache, drop duplicate recv packets */ | |
1279 | if (recv_decache(precv_frame, bretry, &psta->sta_recvpriv.rxcache) == | |
1280 | _FAIL) { | |
1281 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 1282 | "decache : drop pkt\n"); |
5e93f352 LF |
1283 | ret = _FAIL; |
1284 | goto exit; | |
1285 | } | |
1286 | ||
1287 | if (pattrib->privacy) { | |
1288 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 JP |
1289 | "validate_recv_data_frame:pattrib->privacy =%x\n", |
1290 | pattrib->privacy); | |
5e93f352 | 1291 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, |
90403aa1 JP |
1292 | "^^^^^^^^^^^is_multicast_ether_addr(pattrib->ra(0x%02x)) =%d^^^^^^^^^^^^^^^6\n", |
1293 | pattrib->ra[0], | |
1294 | is_multicast_ether_addr(pattrib->ra)); | |
5e93f352 LF |
1295 | |
1296 | GET_ENCRY_ALGO(psecuritypriv, psta, pattrib->encrypt, | |
1297 | is_multicast_ether_addr(pattrib->ra)); | |
1298 | ||
1299 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 | 1300 | "pattrib->encrypt =%d\n", pattrib->encrypt); |
5e93f352 | 1301 | |
5db8bee6 | 1302 | switch (pattrib->encrypt) { |
9e3d6df2 JS |
1303 | case WLAN_CIPHER_SUITE_WEP40: |
1304 | case WLAN_CIPHER_SUITE_WEP104: | |
06e17e36 JS |
1305 | pattrib->iv_len = IEEE80211_WEP_IV_LEN; |
1306 | pattrib->icv_len = IEEE80211_WEP_ICV_LEN; | |
5e93f352 | 1307 | break; |
9e3d6df2 | 1308 | case WLAN_CIPHER_SUITE_TKIP: |
06e17e36 JS |
1309 | pattrib->iv_len = IEEE80211_TKIP_IV_LEN; |
1310 | pattrib->icv_len = IEEE80211_TKIP_ICV_LEN; | |
5e93f352 | 1311 | break; |
9e3d6df2 | 1312 | case WLAN_CIPHER_SUITE_CCMP: |
06e17e36 JS |
1313 | pattrib->iv_len = IEEE80211_CCMP_HDR_LEN; |
1314 | pattrib->icv_len = IEEE80211_CCMP_MIC_LEN; | |
5e93f352 | 1315 | break; |
5e93f352 LF |
1316 | default: |
1317 | pattrib->iv_len = 0; | |
1318 | pattrib->icv_len = 0; | |
1319 | break; | |
1320 | } | |
1321 | } else { | |
1322 | pattrib->encrypt = 0; | |
1323 | pattrib->iv_len = 0; | |
1324 | pattrib->icv_len = 0; | |
1325 | } | |
1326 | ||
1327 | exit: | |
1328 | ||
1329 | ||
1330 | ||
1331 | return ret; | |
1332 | } | |
1333 | ||
1334 | static void dump_rx_pkt(struct sk_buff *skb, u16 type, int level) | |
1335 | { | |
1336 | int i; | |
1337 | u8 *ptr; | |
1338 | ||
1339 | if ((level == 1) || | |
1340 | ((level == 2) && (type == IEEE80211_FTYPE_MGMT)) || | |
1341 | ((level == 3) && (type == IEEE80211_FTYPE_DATA))) { | |
1342 | ||
1343 | ptr = skb->data; | |
1344 | ||
1345 | DBG_8723A("#############################\n"); | |
1346 | ||
1347 | for (i = 0; i < 64; i = i + 8) | |
78f73d92 | 1348 | DBG_8723A("%*phC:\n", 8, ptr + i); |
5e93f352 LF |
1349 | DBG_8723A("#############################\n"); |
1350 | } | |
1351 | } | |
1352 | ||
1353 | static int validate_recv_frame(struct rtw_adapter *adapter, | |
1354 | struct recv_frame *precv_frame) | |
1355 | { | |
1356 | /* shall check frame subtype, to / from ds, da, bssid */ | |
1357 | ||
1358 | /* then call check if rx seq/frag. duplicated. */ | |
1359 | u8 type; | |
1360 | u8 subtype; | |
1361 | int retval = _SUCCESS; | |
1362 | struct rx_pkt_attrib *pattrib = & precv_frame->attrib; | |
1363 | struct sk_buff *skb = precv_frame->pkt; | |
1364 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; | |
1365 | u8 ver; | |
1366 | u8 bDumpRxPkt; | |
1367 | u16 seq_ctrl, fctl; | |
1368 | ||
1369 | fctl = le16_to_cpu(hdr->frame_control); | |
1370 | ver = fctl & IEEE80211_FCTL_VERS; | |
1371 | type = fctl & IEEE80211_FCTL_FTYPE; | |
1372 | subtype = fctl & IEEE80211_FCTL_STYPE; | |
1373 | ||
1374 | /* add version chk */ | |
1375 | if (ver != 0) { | |
1376 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 1377 | "validate_recv_data_frame fail! (ver!= 0)\n"); |
5e93f352 LF |
1378 | retval = _FAIL; |
1379 | goto exit; | |
1380 | } | |
1381 | ||
5e93f352 LF |
1382 | seq_ctrl = le16_to_cpu(hdr->seq_ctrl); |
1383 | pattrib->frag_num = seq_ctrl & IEEE80211_SCTL_FRAG; | |
1384 | pattrib->seq_num = seq_ctrl >> 4; | |
1385 | ||
1386 | pattrib->pw_save = ieee80211_has_pm(hdr->frame_control); | |
1387 | pattrib->mfrag = ieee80211_has_morefrags(hdr->frame_control); | |
1388 | pattrib->mdata = ieee80211_has_moredata(hdr->frame_control); | |
1389 | pattrib->privacy = ieee80211_has_protected(hdr->frame_control); | |
1390 | pattrib->order = ieee80211_has_order(hdr->frame_control); | |
1391 | ||
39f1a8eb | 1392 | GetHalDefVar8192CUsb(adapter, HAL_DEF_DBG_DUMP_RXPKT, &bDumpRxPkt); |
5e93f352 LF |
1393 | |
1394 | if (unlikely(bDumpRxPkt == 1)) | |
1395 | dump_rx_pkt(skb, type, bDumpRxPkt); | |
1396 | ||
5db8bee6 | 1397 | switch (type) { |
5e93f352 LF |
1398 | case IEEE80211_FTYPE_MGMT: |
1399 | retval = validate_recv_mgnt_frame(adapter, precv_frame); | |
1400 | if (retval == _FAIL) { | |
1401 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 1402 | "validate_recv_mgnt_frame fail\n"); |
5e93f352 LF |
1403 | } |
1404 | retval = _FAIL; /* only data frame return _SUCCESS */ | |
1405 | break; | |
1406 | case IEEE80211_FTYPE_CTL: | |
1407 | retval = validate_recv_ctrl_frame(adapter, precv_frame); | |
1408 | if (retval == _FAIL) { | |
1409 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 1410 | "validate_recv_ctrl_frame fail\n"); |
5e93f352 LF |
1411 | } |
1412 | retval = _FAIL; /* only data frame return _SUCCESS */ | |
1413 | break; | |
1414 | case IEEE80211_FTYPE_DATA: | |
5e93f352 LF |
1415 | pattrib->qos = (subtype & IEEE80211_STYPE_QOS_DATA) ? 1 : 0; |
1416 | retval = validate_recv_data_frame(adapter, precv_frame); | |
1417 | if (retval == _FAIL) { | |
1418 | struct recv_priv *precvpriv = &adapter->recvpriv; | |
90403aa1 | 1419 | |
5e93f352 LF |
1420 | precvpriv->rx_drop++; |
1421 | } | |
1422 | break; | |
1423 | default: | |
1424 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 1425 | "validate_recv_data_frame fail! type = 0x%x\n", type); |
5e93f352 LF |
1426 | retval = _FAIL; |
1427 | break; | |
1428 | } | |
1429 | ||
1430 | exit: | |
1431 | return retval; | |
1432 | } | |
1433 | ||
1434 | /* remove the wlanhdr and add the eth_hdr */ | |
1435 | ||
1436 | static int wlanhdr_to_ethhdr (struct recv_frame *precvframe) | |
1437 | { | |
1438 | u16 eth_type, len, hdrlen; | |
1439 | u8 bsnaphdr; | |
1440 | u8 *psnap; | |
5e93f352 LF |
1441 | struct rtw_adapter *adapter = precvframe->adapter; |
1442 | struct mlme_priv *pmlmepriv = &adapter->mlmepriv; | |
1443 | ||
1444 | struct sk_buff *skb = precvframe->pkt; | |
1445 | u8 *ptr; | |
1446 | struct rx_pkt_attrib *pattrib = &precvframe->attrib; | |
1447 | ||
1448 | ||
1449 | ||
1450 | ptr = skb->data; | |
1451 | hdrlen = pattrib->hdrlen; | |
1452 | psnap = ptr + hdrlen; | |
1453 | eth_type = (psnap[6] << 8) | psnap[7]; | |
1454 | /* convert hdr + possible LLC headers into Ethernet header */ | |
5e93f352 LF |
1455 | if ((ether_addr_equal(psnap, rfc1042_header) && |
1456 | eth_type != ETH_P_AARP && eth_type != ETH_P_IPX) || | |
1457 | ether_addr_equal(psnap, bridge_tunnel_header)) { | |
1458 | /* remove RFC1042 or Bridge-Tunnel encapsulation | |
1459 | and replace EtherType */ | |
1460 | bsnaphdr = true; | |
1461 | hdrlen += SNAP_SIZE; | |
1462 | } else { | |
1463 | /* Leave Ethernet header part of hdr and full payload */ | |
1464 | bsnaphdr = false; | |
1465 | eth_type = (psnap[0] << 8) | psnap[1]; | |
1466 | } | |
1467 | ||
1468 | len = skb->len - hdrlen; | |
1469 | ||
1470 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 JP |
1471 | "=== pattrib->hdrlen: %x, pattrib->iv_len:%x ===\n", |
1472 | pattrib->hdrlen, pattrib->iv_len); | |
5e93f352 LF |
1473 | |
1474 | pattrib->eth_type = eth_type; | |
f2f97035 | 1475 | if (check_fwstate(pmlmepriv, WIFI_MP_STATE)) { |
5e93f352 LF |
1476 | ptr += hdrlen; |
1477 | *ptr = 0x87; | |
1478 | *(ptr + 1) = 0x12; | |
1479 | ||
1480 | eth_type = 0x8712; | |
1481 | /* append rx status for mp test packets */ | |
1482 | ||
1483 | ptr = skb_pull(skb, (hdrlen - sizeof(struct ethhdr) + 2) - 24); | |
1484 | memcpy(ptr, skb->head, 24); | |
1485 | ptr += 24; | |
1486 | } else { | |
1487 | ptr = skb_pull(skb, (hdrlen - sizeof(struct ethhdr) + | |
1488 | (bsnaphdr ? 2:0))); | |
1489 | } | |
1490 | ||
1491 | ether_addr_copy(ptr, pattrib->dst); | |
1492 | ether_addr_copy(ptr + ETH_ALEN, pattrib->src); | |
1493 | ||
1494 | if (!bsnaphdr) { | |
80a60777 | 1495 | put_unaligned_be16(len, ptr + 12); |
5e93f352 LF |
1496 | } |
1497 | ||
1498 | ||
038b7039 | 1499 | return _SUCCESS; |
5e93f352 LF |
1500 | } |
1501 | ||
1502 | /* perform defrag */ | |
1503 | struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter, | |
1504 | struct rtw_queue *defrag_q); | |
1505 | struct recv_frame *recvframe_defrag(struct rtw_adapter *adapter, | |
1506 | struct rtw_queue *defrag_q) | |
1507 | { | |
4b279420 | 1508 | struct list_head *phead; |
f0eba516 GT |
1509 | u8 wlanhdr_offset; |
1510 | u8 curfragnum; | |
e280d71b | 1511 | struct recv_frame *pnfhdr, *ptmp; |
5e93f352 | 1512 | struct recv_frame *prframe, *pnextrframe; |
f0eba516 | 1513 | struct rtw_queue *pfree_recv_queue; |
5e93f352 LF |
1514 | struct sk_buff *skb; |
1515 | ||
5e93f352 LF |
1516 | curfragnum = 0; |
1517 | pfree_recv_queue = &adapter->recvpriv.free_recv_queue; | |
1518 | ||
1519 | phead = get_list_head(defrag_q); | |
4b279420 | 1520 | prframe = list_first_entry(phead, struct recv_frame, list); |
5e93f352 LF |
1521 | list_del_init(&prframe->list); |
1522 | skb = prframe->pkt; | |
1523 | ||
1524 | if (curfragnum != prframe->attrib.frag_num) { | |
1525 | /* the first fragment number must be 0 */ | |
1526 | /* free the whole queue */ | |
c5779a0d JS |
1527 | rtw_free_recvframe23a(prframe); |
1528 | rtw_free_recvframe23a_queue(defrag_q); | |
5e93f352 LF |
1529 | |
1530 | return NULL; | |
1531 | } | |
1532 | ||
1533 | curfragnum++; | |
1534 | ||
e280d71b | 1535 | list_for_each_entry_safe(pnfhdr, ptmp, phead, list) { |
5e93f352 LF |
1536 | pnextrframe = (struct recv_frame *)pnfhdr; |
1537 | /* check the fragment sequence (2nd ~n fragment frame) */ | |
1538 | ||
1539 | if (curfragnum != pnfhdr->attrib.frag_num) { | |
1540 | /* the fragment number must be increasing | |
1541 | (after decache) */ | |
1542 | /* release the defrag_q & prframe */ | |
c5779a0d JS |
1543 | rtw_free_recvframe23a(prframe); |
1544 | rtw_free_recvframe23a_queue(defrag_q); | |
5e93f352 LF |
1545 | return NULL; |
1546 | } | |
1547 | ||
1548 | curfragnum++; | |
1549 | ||
1550 | /* copy the 2nd~n fragment frame's payload to the | |
1551 | first fragment */ | |
1552 | /* get the 2nd~last fragment frame's payload */ | |
1553 | ||
1554 | wlanhdr_offset = pnfhdr->attrib.hdrlen + pnfhdr->attrib.iv_len; | |
1555 | ||
1556 | skb_pull(pnfhdr->pkt, wlanhdr_offset); | |
1557 | ||
1558 | /* append to first fragment frame's tail | |
1559 | (if privacy frame, pull the ICV) */ | |
1560 | ||
1561 | skb_trim(skb, skb->len - prframe->attrib.icv_len); | |
1562 | ||
1563 | memcpy(skb_tail_pointer(skb), pnfhdr->pkt->data, | |
1564 | pnfhdr->pkt->len); | |
1565 | ||
1566 | skb_put(skb, pnfhdr->pkt->len); | |
1567 | ||
1568 | prframe->attrib.icv_len = pnfhdr->attrib.icv_len; | |
b9b4224b | 1569 | } |
5e93f352 LF |
1570 | |
1571 | /* free the defrag_q queue and return the prframe */ | |
c5779a0d | 1572 | rtw_free_recvframe23a_queue(defrag_q); |
5e93f352 LF |
1573 | |
1574 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 | 1575 | "Performance defrag!!!!!\n"); |
5e93f352 | 1576 | |
5e93f352 LF |
1577 | return prframe; |
1578 | } | |
1579 | ||
1580 | /* check if need to defrag, if needed queue the frame to defrag_q */ | |
4e66cf09 | 1581 | struct recv_frame *recvframe_chk_defrag23a(struct rtw_adapter *padapter, |
5e93f352 LF |
1582 | struct recv_frame *precv_frame) |
1583 | { | |
1584 | u8 ismfrag; | |
1585 | u8 fragnum; | |
1586 | u8 *psta_addr; | |
1587 | struct recv_frame *pfhdr; | |
1588 | struct sta_info *psta; | |
1589 | struct sta_priv *pstapriv; | |
1590 | struct list_head *phead; | |
1591 | struct recv_frame *prtnframe = NULL; | |
1592 | struct rtw_queue *pfree_recv_queue, *pdefrag_q; | |
1593 | ||
1594 | ||
1595 | ||
1596 | pstapriv = &padapter->stapriv; | |
1597 | ||
1598 | pfhdr = precv_frame; | |
1599 | ||
1600 | pfree_recv_queue = &padapter->recvpriv.free_recv_queue; | |
1601 | ||
1602 | /* need to define struct of wlan header frame ctrl */ | |
1603 | ismfrag = pfhdr->attrib.mfrag; | |
1604 | fragnum = pfhdr->attrib.frag_num; | |
1605 | ||
1606 | psta_addr = pfhdr->attrib.ta; | |
1607 | psta = rtw_get_stainfo23a(pstapriv, psta_addr); | |
1608 | if (!psta) { | |
1609 | struct ieee80211_hdr *hdr = | |
1610 | (struct ieee80211_hdr *) pfhdr->pkt->data; | |
1611 | if (!ieee80211_is_data(hdr->frame_control)) { | |
1612 | psta = rtw_get_bcmc_stainfo23a(padapter); | |
1613 | pdefrag_q = &psta->sta_recvpriv.defrag_q; | |
1614 | } else | |
1615 | pdefrag_q = NULL; | |
1616 | } else | |
1617 | pdefrag_q = &psta->sta_recvpriv.defrag_q; | |
1618 | ||
1619 | if ((ismfrag == 0) && (fragnum == 0)) { | |
1620 | prtnframe = precv_frame;/* isn't a fragment frame */ | |
1621 | } | |
1622 | ||
1623 | if (ismfrag == 1) { | |
1624 | /* 0~(n-1) fragment frame */ | |
1625 | /* enqueue to defraf_g */ | |
1626 | if (pdefrag_q != NULL) { | |
1627 | if (fragnum == 0) { | |
1628 | /* the first fragment */ | |
794ff053 | 1629 | if (!list_empty(&pdefrag_q->queue)) { |
5e93f352 | 1630 | /* free current defrag_q */ |
c5779a0d | 1631 | rtw_free_recvframe23a_queue(pdefrag_q); |
5e93f352 LF |
1632 | } |
1633 | } | |
1634 | ||
1635 | /* Then enqueue the 0~(n-1) fragment into the | |
1636 | defrag_q */ | |
1637 | ||
1638 | /* spin_lock(&pdefrag_q->lock); */ | |
1639 | phead = get_list_head(pdefrag_q); | |
1640 | list_add_tail(&pfhdr->list, phead); | |
1641 | /* spin_unlock(&pdefrag_q->lock); */ | |
1642 | ||
1643 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 JP |
1644 | "Enqueuq: ismfrag = %d, fragnum = %d\n", |
1645 | ismfrag, fragnum); | |
5e93f352 LF |
1646 | |
1647 | prtnframe = NULL; | |
1648 | ||
1649 | } else { | |
1650 | /* can't find this ta's defrag_queue, | |
1651 | so free this recv_frame */ | |
c5779a0d | 1652 | rtw_free_recvframe23a(precv_frame); |
5e93f352 LF |
1653 | prtnframe = NULL; |
1654 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 JP |
1655 | "Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n", |
1656 | ismfrag, fragnum); | |
5e93f352 LF |
1657 | } |
1658 | } | |
1659 | ||
1660 | if ((ismfrag == 0) && (fragnum != 0)) { | |
1661 | /* the last fragment frame */ | |
1662 | /* enqueue the last fragment */ | |
1663 | if (pdefrag_q != NULL) { | |
1664 | /* spin_lock(&pdefrag_q->lock); */ | |
1665 | phead = get_list_head(pdefrag_q); | |
1666 | list_add_tail(&pfhdr->list, phead); | |
1667 | /* spin_unlock(&pdefrag_q->lock); */ | |
1668 | ||
1669 | /* call recvframe_defrag to defrag */ | |
1670 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 JP |
1671 | "defrag: ismfrag = %d, fragnum = %d\n", |
1672 | ismfrag, fragnum); | |
5e93f352 LF |
1673 | precv_frame = recvframe_defrag(padapter, pdefrag_q); |
1674 | prtnframe = precv_frame; | |
1675 | } else { | |
1676 | /* can't find this ta's defrag_queue, | |
1677 | so free this recv_frame */ | |
c5779a0d | 1678 | rtw_free_recvframe23a(precv_frame); |
5e93f352 LF |
1679 | prtnframe = NULL; |
1680 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 JP |
1681 | "Free because pdefrag_q == NULL: ismfrag = %d, fragnum = %d\n", |
1682 | ismfrag, fragnum); | |
5e93f352 LF |
1683 | } |
1684 | ||
1685 | } | |
1686 | ||
1687 | if ((prtnframe != NULL) && (prtnframe->attrib.privacy)) { | |
1688 | /* after defrag we must check tkip mic code */ | |
1689 | if (recvframe_chkmic(padapter, prtnframe) == _FAIL) { | |
1690 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 1691 | "recvframe_chkmic(padapter, prtnframe) ==_FAIL\n"); |
c5779a0d | 1692 | rtw_free_recvframe23a(prtnframe); |
5e93f352 LF |
1693 | prtnframe = NULL; |
1694 | } | |
1695 | } | |
1696 | ||
1697 | ||
1698 | ||
1699 | return prtnframe; | |
1700 | } | |
1701 | ||
1702 | int amsdu_to_msdu(struct rtw_adapter *padapter, struct recv_frame *prframe); | |
1703 | int amsdu_to_msdu(struct rtw_adapter *padapter, struct recv_frame *prframe) | |
1704 | { | |
1705 | struct rx_pkt_attrib *pattrib; | |
1706 | struct sk_buff *skb, *sub_skb; | |
1707 | struct sk_buff_head skb_list; | |
5e93f352 LF |
1708 | |
1709 | pattrib = &prframe->attrib; | |
1710 | ||
1711 | skb = prframe->pkt; | |
1712 | skb_pull(skb, prframe->attrib.hdrlen); | |
1713 | __skb_queue_head_init(&skb_list); | |
1714 | ||
1715 | ieee80211_amsdu_to_8023s(skb, &skb_list, NULL, 0, 0, false); | |
1716 | ||
1717 | while (!skb_queue_empty(&skb_list)) { | |
1718 | sub_skb = __skb_dequeue(&skb_list); | |
1719 | ||
1720 | sub_skb->protocol = eth_type_trans(sub_skb, padapter->pnetdev); | |
1721 | sub_skb->dev = padapter->pnetdev; | |
1722 | ||
1723 | sub_skb->ip_summed = CHECKSUM_NONE; | |
1724 | ||
1725 | netif_rx(sub_skb); | |
1726 | } | |
1727 | ||
1728 | prframe->pkt = NULL; | |
c5779a0d | 1729 | rtw_free_recvframe23a(prframe); |
5e93f352 LF |
1730 | return _SUCCESS; |
1731 | } | |
1732 | ||
1733 | int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num); | |
1734 | int check_indicate_seq(struct recv_reorder_ctrl *preorder_ctrl, u16 seq_num) | |
1735 | { | |
1736 | u8 wsize = preorder_ctrl->wsize_b; | |
1737 | u16 wend = (preorder_ctrl->indicate_seq + wsize -1) & 0xFFF; | |
1738 | ||
1739 | /* Rx Reorder initialize condition. */ | |
1740 | if (preorder_ctrl->indicate_seq == 0xFFFF) | |
1741 | preorder_ctrl->indicate_seq = seq_num; | |
1742 | ||
1743 | /* Drop out the packet which SeqNum is smaller than WinStart */ | |
1744 | if (SN_LESS(seq_num, preorder_ctrl->indicate_seq)) | |
1745 | return false; | |
1746 | ||
1747 | /* */ | |
1748 | /* Sliding window manipulation. Conditions includes: */ | |
1749 | /* 1. Incoming SeqNum is equal to WinStart =>Window shift 1 */ | |
1750 | /* 2. Incoming SeqNum is larger than the WinEnd => Window shift N */ | |
1751 | /* */ | |
1752 | if (SN_EQUAL(seq_num, preorder_ctrl->indicate_seq)) { | |
1753 | preorder_ctrl->indicate_seq = | |
1754 | (preorder_ctrl->indicate_seq + 1) & 0xFFF; | |
1755 | } else if (SN_LESS(wend, seq_num)) { | |
1756 | /* boundary situation, when seq_num cross 0xFFF */ | |
1757 | if (seq_num >= (wsize - 1)) | |
1758 | preorder_ctrl->indicate_seq = seq_num + 1 -wsize; | |
1759 | else | |
1760 | preorder_ctrl->indicate_seq = 0xFFF - (wsize - (seq_num + 1)) + 1; | |
1761 | } | |
1762 | return true; | |
1763 | } | |
1764 | ||
c0b99bed | 1765 | static int enqueue_reorder_recvframe23a(struct recv_reorder_ctrl *preorder_ctrl, |
a82b4b01 | 1766 | struct recv_frame *prframe) |
5e93f352 LF |
1767 | { |
1768 | struct rx_pkt_attrib *pattrib = &prframe->attrib; | |
1769 | struct rtw_queue *ppending_recvframe_queue; | |
1770 | struct list_head *phead, *plist, *ptmp; | |
1771 | struct recv_frame *hdr; | |
1772 | struct rx_pkt_attrib *pnextattrib; | |
1773 | ||
1774 | ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; | |
5e93f352 LF |
1775 | phead = get_list_head(ppending_recvframe_queue); |
1776 | ||
1777 | list_for_each_safe(plist, ptmp, phead) { | |
1778 | hdr = container_of(plist, struct recv_frame, list); | |
1779 | pnextattrib = &hdr->attrib; | |
1780 | ||
1781 | if (SN_LESS(pnextattrib->seq_num, pattrib->seq_num)) { | |
1782 | continue; | |
1783 | } else if (SN_EQUAL(pnextattrib->seq_num, pattrib->seq_num)) { | |
1784 | /* Duplicate entry is found!! Do not insert current entry. */ | |
5e93f352 LF |
1785 | return false; |
1786 | } else { | |
1787 | break; | |
1788 | } | |
1789 | ||
5e93f352 LF |
1790 | } |
1791 | ||
5e93f352 LF |
1792 | list_del_init(&prframe->list); |
1793 | ||
1794 | list_add_tail(&prframe->list, plist); | |
1795 | ||
5e93f352 LF |
1796 | return true; |
1797 | } | |
1798 | ||
1799 | int recv_indicatepkts_in_order(struct rtw_adapter *padapter, | |
1800 | struct recv_reorder_ctrl *preorder_ctrl, | |
1801 | int bforced); | |
1802 | int recv_indicatepkts_in_order(struct rtw_adapter *padapter, | |
1803 | struct recv_reorder_ctrl *preorder_ctrl, | |
1804 | int bforced) | |
1805 | { | |
5e93f352 LF |
1806 | struct list_head *phead, *plist; |
1807 | struct recv_frame *prframe; | |
1808 | struct rx_pkt_attrib *pattrib; | |
5e93f352 LF |
1809 | int bPktInBuf = false; |
1810 | struct recv_priv *precvpriv; | |
1811 | struct rtw_queue *ppending_recvframe_queue; | |
1812 | ||
1813 | precvpriv = &padapter->recvpriv; | |
1814 | ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; | |
5e93f352 LF |
1815 | phead = get_list_head(ppending_recvframe_queue); |
1816 | plist = phead->next; | |
1817 | ||
1818 | /* Handling some condition for forced indicate case. */ | |
1819 | if (bforced) { | |
1820 | if (list_empty(phead)) { | |
5e93f352 LF |
1821 | return true; |
1822 | } | |
1823 | ||
1824 | prframe = container_of(plist, struct recv_frame, list); | |
a82b4b01 | 1825 | pattrib = &prframe->attrib; |
5e93f352 LF |
1826 | preorder_ctrl->indicate_seq = pattrib->seq_num; |
1827 | } | |
1828 | ||
1829 | /* Prepare indication list and indication. */ | |
1830 | /* Check if there is any packet need indicate. */ | |
1831 | while (!list_empty(phead)) { | |
1832 | ||
1833 | prframe = container_of(plist, struct recv_frame, list); | |
1834 | pattrib = &prframe->attrib; | |
1835 | ||
1836 | if (!SN_LESS(preorder_ctrl->indicate_seq, pattrib->seq_num)) { | |
1837 | RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, | |
90403aa1 JP |
1838 | "recv_indicatepkts_in_order: indicate =%d seq =%d amsdu =%d\n", |
1839 | preorder_ctrl->indicate_seq, | |
1840 | pattrib->seq_num, pattrib->amsdu); | |
5e93f352 LF |
1841 | |
1842 | plist = plist->next; | |
1843 | list_del_init(&prframe->list); | |
1844 | ||
1845 | if (SN_EQUAL(preorder_ctrl->indicate_seq, | |
1846 | pattrib->seq_num)) { | |
1847 | preorder_ctrl->indicate_seq = | |
1848 | (preorder_ctrl->indicate_seq + 1)&0xFFF; | |
1849 | } | |
1850 | ||
1851 | if (!pattrib->amsdu) { | |
1852 | if ((padapter->bDriverStopped == false) && | |
1853 | (padapter->bSurpriseRemoved == false)) { | |
1854 | rtw_recv_indicatepkt23a(padapter, prframe); | |
1855 | } | |
1856 | } else { | |
1857 | if (amsdu_to_msdu(padapter, prframe) != | |
c5779a0d JS |
1858 | _SUCCESS) |
1859 | rtw_free_recvframe23a(prframe); | |
5e93f352 LF |
1860 | } |
1861 | ||
1862 | /* Update local variables. */ | |
1863 | bPktInBuf = false; | |
1864 | ||
1865 | } else { | |
1866 | bPktInBuf = true; | |
1867 | break; | |
1868 | } | |
1869 | ||
5e93f352 LF |
1870 | } |
1871 | ||
5e93f352 LF |
1872 | return bPktInBuf; |
1873 | } | |
1874 | ||
1875 | int recv_indicatepkt_reorder(struct rtw_adapter *padapter, | |
1876 | struct recv_frame *prframe); | |
1877 | int recv_indicatepkt_reorder(struct rtw_adapter *padapter, | |
1878 | struct recv_frame *prframe) | |
1879 | { | |
1880 | int retval = _SUCCESS; | |
1881 | struct rx_pkt_attrib *pattrib; | |
1882 | struct recv_reorder_ctrl *preorder_ctrl; | |
1883 | struct rtw_queue *ppending_recvframe_queue; | |
1884 | ||
1885 | pattrib = &prframe->attrib; | |
1886 | preorder_ctrl = prframe->preorder_ctrl; | |
1887 | ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; | |
1888 | ||
1889 | if (!pattrib->amsdu) { | |
1890 | /* s1. */ | |
1891 | wlanhdr_to_ethhdr(prframe); | |
1892 | ||
7dd1e720 | 1893 | if ((pattrib->qos!= 1) || (pattrib->eth_type == ETH_P_ARP) || |
5e93f352 LF |
1894 | (pattrib->ack_policy != 0)) { |
1895 | if ((padapter->bDriverStopped == false) && | |
1896 | (padapter->bSurpriseRemoved == false)) { | |
1897 | RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, | |
90403aa1 | 1898 | "@@@@ recv_indicatepkt_reorder -recv_func recv_indicatepkt\n"); |
5e93f352 LF |
1899 | |
1900 | rtw_recv_indicatepkt23a(padapter, prframe); | |
1901 | return _SUCCESS; | |
1902 | } | |
1903 | ||
1904 | return _FAIL; | |
1905 | } | |
1906 | ||
1907 | if (preorder_ctrl->enable == false) { | |
1908 | /* indicate this recv_frame */ | |
1909 | preorder_ctrl->indicate_seq = pattrib->seq_num; | |
1910 | rtw_recv_indicatepkt23a(padapter, prframe); | |
1911 | ||
1912 | preorder_ctrl->indicate_seq = | |
1913 | (preorder_ctrl->indicate_seq + 1) % 4096; | |
1914 | return _SUCCESS; | |
1915 | } | |
1916 | } else { | |
1917 | /* temp filter -> means didn't support A-MSDUs in a A-MPDU */ | |
1918 | if (preorder_ctrl->enable == false) { | |
1919 | preorder_ctrl->indicate_seq = pattrib->seq_num; | |
1920 | retval = amsdu_to_msdu(padapter, prframe); | |
1921 | ||
1922 | preorder_ctrl->indicate_seq = | |
1923 | (preorder_ctrl->indicate_seq + 1) % 4096; | |
1924 | return retval; | |
1925 | } | |
1926 | } | |
1927 | ||
1928 | spin_lock_bh(&ppending_recvframe_queue->lock); | |
1929 | ||
1930 | RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, | |
90403aa1 JP |
1931 | "recv_indicatepkt_reorder: indicate =%d seq =%d\n", |
1932 | preorder_ctrl->indicate_seq, pattrib->seq_num); | |
5e93f352 LF |
1933 | |
1934 | /* s2. check if winstart_b(indicate_seq) needs to been updated */ | |
1935 | if (!check_indicate_seq(preorder_ctrl, pattrib->seq_num)) { | |
1936 | goto _err_exit; | |
1937 | } | |
1938 | ||
1939 | /* s3. Insert all packet into Reorder Queue to maintain its ordering. */ | |
1940 | if (!enqueue_reorder_recvframe23a(preorder_ctrl, prframe)) { | |
1941 | goto _err_exit; | |
1942 | } | |
1943 | ||
1944 | /* s4. */ | |
1945 | /* Indication process. */ | |
1946 | /* After Packet dropping and Sliding Window shifting as above, | |
1947 | we can now just indicate the packets */ | |
1948 | /* with the SeqNum smaller than latest WinStart and buffer | |
1949 | other packets. */ | |
1950 | /* */ | |
1951 | /* For Rx Reorder condition: */ | |
1952 | /* 1. All packets with SeqNum smaller than WinStart => Indicate */ | |
1953 | /* 2. All packets with SeqNum larger than or equal to WinStart => | |
1954 | Buffer it. */ | |
1955 | /* */ | |
1956 | ||
1957 | if (recv_indicatepkts_in_order(padapter, preorder_ctrl, false) == true) { | |
1958 | mod_timer(&preorder_ctrl->reordering_ctrl_timer, | |
1959 | jiffies + msecs_to_jiffies(REORDER_WAIT_TIME)); | |
1960 | spin_unlock_bh(&ppending_recvframe_queue->lock); | |
1961 | } else { | |
1962 | spin_unlock_bh(&ppending_recvframe_queue->lock); | |
1963 | del_timer_sync(&preorder_ctrl->reordering_ctrl_timer); | |
1964 | } | |
1965 | return _SUCCESS; | |
1966 | ||
1967 | _err_exit: | |
1968 | ||
a82b4b01 | 1969 | spin_unlock_bh(&ppending_recvframe_queue->lock); |
5e93f352 LF |
1970 | return _FAIL; |
1971 | } | |
1972 | ||
1973 | void rtw_reordering_ctrl_timeout_handler23a(unsigned long pcontext) | |
1974 | { | |
1975 | struct recv_reorder_ctrl *preorder_ctrl; | |
1976 | struct rtw_adapter *padapter; | |
1977 | struct rtw_queue *ppending_recvframe_queue; | |
1978 | ||
1979 | preorder_ctrl = (struct recv_reorder_ctrl *)pcontext; | |
1980 | padapter = preorder_ctrl->padapter; | |
1981 | ppending_recvframe_queue = &preorder_ctrl->pending_recvframe_queue; | |
1982 | ||
1983 | if (padapter->bDriverStopped || padapter->bSurpriseRemoved) { | |
1984 | return; | |
1985 | } | |
1986 | ||
5e93f352 LF |
1987 | spin_lock_bh(&ppending_recvframe_queue->lock); |
1988 | ||
1989 | if (recv_indicatepkts_in_order(padapter, preorder_ctrl, true) == true) { | |
1990 | mod_timer(&preorder_ctrl->reordering_ctrl_timer, | |
1991 | jiffies + msecs_to_jiffies(REORDER_WAIT_TIME)); | |
1992 | } | |
1993 | ||
1994 | spin_unlock_bh(&ppending_recvframe_queue->lock); | |
1995 | } | |
1996 | ||
1997 | int process_recv_indicatepkts(struct rtw_adapter *padapter, | |
1998 | struct recv_frame *prframe); | |
1999 | int process_recv_indicatepkts(struct rtw_adapter *padapter, | |
2000 | struct recv_frame *prframe) | |
2001 | { | |
2002 | int retval = _SUCCESS; | |
5e93f352 LF |
2003 | struct mlme_priv *pmlmepriv = &padapter->mlmepriv; |
2004 | struct ht_priv *phtpriv = &pmlmepriv->htpriv; | |
2005 | ||
2006 | if (phtpriv->ht_option == true) { /* B/G/N Mode */ | |
5e93f352 LF |
2007 | /* including perform A-MPDU Rx Ordering Buffer Control */ |
2008 | if (recv_indicatepkt_reorder(padapter, prframe) != _SUCCESS) { | |
2009 | if ((padapter->bDriverStopped == false) && | |
2010 | (padapter->bSurpriseRemoved == false)) { | |
2011 | retval = _FAIL; | |
2012 | return retval; | |
2013 | } | |
2014 | } | |
5db8bee6 | 2015 | } else { /* B/G mode */ |
5e93f352 LF |
2016 | retval = wlanhdr_to_ethhdr(prframe); |
2017 | if (retval != _SUCCESS) { | |
2018 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 2019 | "wlanhdr_to_ethhdr: drop pkt\n"); |
5e93f352 LF |
2020 | return retval; |
2021 | } | |
2022 | ||
2023 | if ((padapter->bDriverStopped == false) && | |
2024 | (padapter->bSurpriseRemoved == false)) { | |
2025 | /* indicate this recv_frame */ | |
2026 | RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, | |
90403aa1 | 2027 | "@@@@ process_recv_indicatepkts- recv_func recv_indicatepkt\n"); |
5e93f352 LF |
2028 | rtw_recv_indicatepkt23a(padapter, prframe); |
2029 | } else { | |
2030 | RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, | |
90403aa1 | 2031 | "@@@@ process_recv_indicatepkts- recv_func free_indicatepkt\n"); |
5e93f352 LF |
2032 | |
2033 | RT_TRACE(_module_rtl871x_recv_c_, _drv_notice_, | |
90403aa1 JP |
2034 | "recv_func:bDriverStopped(%d) OR bSurpriseRemoved(%d)\n", |
2035 | padapter->bDriverStopped, | |
2036 | padapter->bSurpriseRemoved); | |
5e93f352 LF |
2037 | retval = _FAIL; |
2038 | return retval; | |
2039 | } | |
2040 | ||
2041 | } | |
2042 | ||
2043 | return retval; | |
2044 | } | |
2045 | ||
2046 | static int recv_func_prehandle(struct rtw_adapter *padapter, | |
2047 | struct recv_frame *rframe) | |
2048 | { | |
e847655a | 2049 | int ret; |
5e93f352 LF |
2050 | |
2051 | /* check the frame crtl field and decache */ | |
2052 | ret = validate_recv_frame(padapter, rframe); | |
2053 | if (ret != _SUCCESS) { | |
2054 | RT_TRACE(_module_rtl871x_recv_c_, _drv_info_, | |
90403aa1 | 2055 | "recv_func: validate_recv_frame fail! drop pkt\n"); |
c5779a0d | 2056 | rtw_free_recvframe23a(rframe); |
5e93f352 LF |
2057 | goto exit; |
2058 | } | |
2059 | ||
2060 | exit: | |
2061 | return ret; | |
2062 | } | |
2063 | ||
2064 | static int recv_func_posthandle(struct rtw_adapter *padapter, | |
2065 | struct recv_frame *prframe) | |
2066 | { | |
2067 | int ret = _SUCCESS; | |
2068 | struct recv_frame *orig_prframe = prframe; | |
2069 | struct recv_priv *precvpriv = &padapter->recvpriv; | |
5e93f352 LF |
2070 | |
2071 | /* DATA FRAME */ | |
5e93f352 LF |
2072 | prframe = decryptor(padapter, prframe); |
2073 | if (prframe == NULL) { | |
2074 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 2075 | "decryptor: drop pkt\n"); |
5e93f352 LF |
2076 | ret = _FAIL; |
2077 | goto _recv_data_drop; | |
2078 | } | |
2079 | ||
2080 | prframe = recvframe_chk_defrag23a(padapter, prframe); | |
2081 | if (!prframe) { | |
2082 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 2083 | "recvframe_chk_defrag23a: drop pkt\n"); |
5e93f352 LF |
2084 | goto _recv_data_drop; |
2085 | } | |
2086 | ||
2087 | /* | |
2088 | * Pull off crypto headers | |
2089 | */ | |
2090 | if (prframe->attrib.iv_len > 0) { | |
2091 | skb_pull(prframe->pkt, prframe->attrib.iv_len); | |
2092 | } | |
2093 | ||
2094 | if (prframe->attrib.icv_len > 0) { | |
2095 | skb_trim(prframe->pkt, | |
2096 | prframe->pkt->len - prframe->attrib.icv_len); | |
2097 | } | |
2098 | ||
2099 | prframe = portctrl(padapter, prframe); | |
2100 | if (!prframe) { | |
2101 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 2102 | "portctrl: drop pkt\n"); |
5e93f352 LF |
2103 | ret = _FAIL; |
2104 | goto _recv_data_drop; | |
2105 | } | |
2106 | ||
2107 | count_rx_stats(padapter, prframe, NULL); | |
2108 | ||
2109 | ret = process_recv_indicatepkts(padapter, prframe); | |
2110 | if (ret != _SUCCESS) { | |
2111 | RT_TRACE(_module_rtl871x_recv_c_, _drv_err_, | |
90403aa1 | 2112 | "recv_func: process_recv_indicatepkts fail!\n"); |
c5779a0d | 2113 | rtw_free_recvframe23a(orig_prframe);/* free this recv_frame */ |
5e93f352 LF |
2114 | goto _recv_data_drop; |
2115 | } | |
2116 | return ret; | |
2117 | ||
2118 | _recv_data_drop: | |
2119 | precvpriv->rx_drop++; | |
2120 | return ret; | |
2121 | } | |
2122 | ||
2123 | int rtw_recv_entry23a(struct recv_frame *rframe) | |
2124 | { | |
2125 | int ret, r; | |
2126 | struct rtw_adapter *padapter = rframe->adapter; | |
2127 | struct rx_pkt_attrib *prxattrib = &rframe->attrib; | |
2128 | struct recv_priv *recvpriv = &padapter->recvpriv; | |
2129 | struct security_priv *psecuritypriv = &padapter->securitypriv; | |
2130 | struct mlme_priv *mlmepriv = &padapter->mlmepriv; | |
2131 | ||
2132 | /* check if need to handle uc_swdec_pending_queue*/ | |
2133 | if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && | |
2134 | psecuritypriv->busetkipkey) { | |
2135 | struct recv_frame *pending_frame; | |
2136 | ||
2137 | while ((pending_frame = rtw_alloc_recvframe23a(&padapter->recvpriv.uc_swdec_pending_queue))) { | |
2138 | r = recv_func_posthandle(padapter, pending_frame); | |
2139 | if (r == _SUCCESS) | |
2140 | DBG_8723A("%s: dequeue uc_swdec_pending_queue\n", __func__); | |
2141 | } | |
2142 | } | |
2143 | ||
2144 | ret = recv_func_prehandle(padapter, rframe); | |
2145 | ||
2146 | if (ret == _SUCCESS) { | |
2147 | /* check if need to enqueue into uc_swdec_pending_queue*/ | |
2148 | if (check_fwstate(mlmepriv, WIFI_STATION_STATE) && | |
2149 | !is_multicast_ether_addr(prxattrib->ra) && | |
2150 | prxattrib->encrypt > 0 && | |
2151 | (prxattrib->bdecrypted == 0) && | |
2152 | !is_wep_enc(psecuritypriv->dot11PrivacyAlgrthm) && | |
2153 | !psecuritypriv->busetkipkey) { | |
2154 | rtw_enqueue_recvframe23a(rframe, &padapter->recvpriv.uc_swdec_pending_queue); | |
2155 | DBG_8723A("%s: no key, enqueue uc_swdec_pending_queue\n", __func__); | |
2156 | goto exit; | |
2157 | } | |
2158 | ||
2159 | ret = recv_func_posthandle(padapter, rframe); | |
2160 | ||
2161 | recvpriv->rx_pkts++; | |
2162 | } | |
2163 | ||
2164 | exit: | |
2165 | return ret; | |
2166 | } | |
2167 | ||
2168 | void rtw_signal_stat_timer_hdl23a(unsigned long data) | |
2169 | { | |
2170 | struct rtw_adapter *adapter = (struct rtw_adapter *)data; | |
2171 | struct recv_priv *recvpriv = &adapter->recvpriv; | |
2172 | ||
2173 | u32 tmp_s, tmp_q; | |
2174 | u8 avg_signal_strength = 0; | |
2175 | u8 avg_signal_qual = 0; | |
2176 | u32 num_signal_strength = 0; | |
2177 | u32 num_signal_qual = 0; | |
2178 | u8 _alpha = 3; /* this value is based on converging_constant = 5000 */ | |
2179 | /* and sampling_interval = 1000 */ | |
2180 | ||
707ce72f JS |
2181 | if (recvpriv->signal_strength_data.update_req == 0) { |
2182 | /* update_req is clear, means we got rx */ | |
2183 | avg_signal_strength = recvpriv->signal_strength_data.avg_val; | |
2184 | num_signal_strength = recvpriv->signal_strength_data.total_num; | |
2185 | /* after avg_vals are acquired, we can re-stat */ | |
2186 | /* the signal values */ | |
2187 | recvpriv->signal_strength_data.update_req = 1; | |
2188 | } | |
2189 | ||
2190 | if (recvpriv->signal_qual_data.update_req == 0) { | |
2191 | /* update_req is clear, means we got rx */ | |
2192 | avg_signal_qual = recvpriv->signal_qual_data.avg_val; | |
2193 | num_signal_qual = recvpriv->signal_qual_data.total_num; | |
2194 | /* after avg_vals are acquired, we can re-stat */ | |
2195 | /*the signal values */ | |
2196 | recvpriv->signal_qual_data.update_req = 1; | |
2197 | } | |
2198 | ||
2199 | /* update value of signal_strength, rssi, signal_qual */ | |
2200 | if (!check_fwstate(&adapter->mlmepriv, _FW_UNDER_SURVEY)) { | |
acc4b97b HM |
2201 | tmp_s = avg_signal_strength + (_alpha - 1) * |
2202 | recvpriv->signal_strength; | |
707ce72f JS |
2203 | if (tmp_s %_alpha) |
2204 | tmp_s = tmp_s / _alpha + 1; | |
2205 | else | |
2206 | tmp_s = tmp_s / _alpha; | |
2207 | if (tmp_s > 100) | |
2208 | tmp_s = 100; | |
5e93f352 | 2209 | |
707ce72f JS |
2210 | tmp_q = avg_signal_qual + (_alpha - 1) * recvpriv->signal_qual; |
2211 | if (tmp_q %_alpha) | |
2212 | tmp_q = tmp_q / _alpha + 1; | |
2213 | else | |
2214 | tmp_q = tmp_q / _alpha; | |
2215 | if (tmp_q > 100) | |
2216 | tmp_q = 100; | |
5e93f352 | 2217 | |
707ce72f | 2218 | recvpriv->signal_strength = tmp_s; |
707ce72f JS |
2219 | recvpriv->signal_qual = tmp_q; |
2220 | ||
f7bf8c24 JS |
2221 | DBG_8723A("%s signal_strength:%3u, signal_qual:%3u, " |
2222 | "num_signal_strength:%u, num_signal_qual:%u\n", | |
707ce72f | 2223 | __func__, recvpriv->signal_strength, |
f7bf8c24 JS |
2224 | recvpriv->signal_qual, num_signal_strength, |
2225 | num_signal_qual); | |
5e93f352 | 2226 | } |
707ce72f | 2227 | |
5e93f352 LF |
2228 | rtw_set_signal_stat_timer(recvpriv); |
2229 | } |