1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2017 Realtek Corporation.
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 _RECV_OSDEP_C_
16
17 #include <drv_types.h>
18
rtw_os_recvframe_duplicate_skb(_adapter * padapter,union recv_frame * pcloneframe,_pkt * pskb)19 int rtw_os_recvframe_duplicate_skb(_adapter *padapter, union recv_frame *pcloneframe, _pkt *pskb)
20 {
21 int res = _SUCCESS;
22 _pkt *pkt_copy = NULL;
23
24 if (pskb == NULL) {
25 RTW_INFO("%s [WARN] skb == NULL, drop frag frame\n", __func__);
26 return _FAIL;
27 }
28 #if 1
29 pkt_copy = rtw_skb_copy(pskb);
30
31 if (pkt_copy == NULL) {
32 RTW_INFO("%s [WARN] rtw_skb_copy fail , drop frag frame\n", __func__);
33 return _FAIL;
34 }
35 #else
36 pkt_copy = rtw_skb_clone(pskb);
37
38 if (pkt_copy == NULL) {
39 RTW_INFO("%s [WARN] rtw_skb_clone fail , drop frag frame\n", __func__);
40 return _FAIL;
41 }
42 #endif
43 pkt_copy->dev = padapter->pnetdev;
44
45 pcloneframe->u.hdr.pkt = pkt_copy;
46 pcloneframe->u.hdr.rx_head = pkt_copy->head;
47 pcloneframe->u.hdr.rx_data = pkt_copy->data;
48 pcloneframe->u.hdr.rx_end = skb_end_pointer(pkt_copy);
49 pcloneframe->u.hdr.rx_tail = skb_tail_pointer(pkt_copy);
50 pcloneframe->u.hdr.len = pkt_copy->len;
51
52 return res;
53 }
54
rtw_os_alloc_recvframe(_adapter * padapter,union recv_frame * precvframe,u8 * pdata,_pkt * pskb)55 int rtw_os_alloc_recvframe(_adapter *padapter, union recv_frame *precvframe, u8 *pdata, _pkt *pskb)
56 {
57 int res = _SUCCESS;
58 u8 shift_sz = 0;
59 u32 skb_len, alloc_sz;
60 _pkt *pkt_copy = NULL;
61 struct rx_pkt_attrib *pattrib = &precvframe->u.hdr.attrib;
62
63
64 if (pdata == NULL) {
65 precvframe->u.hdr.pkt = NULL;
66 res = _FAIL;
67 return res;
68 }
69
70
71 /* Modified by Albert 20101213 */
72 /* For 8 bytes IP header alignment. */
73 shift_sz = pattrib->qos ? 6 : 0; /* Qos data, wireless lan header length is 26 */
74
75 skb_len = pattrib->pkt_len;
76
77 /* for first fragment packet, driver need allocate 1536+drvinfo_sz+RXDESC_SIZE to defrag packet. */
78 /* modify alloc_sz for recvive crc error packet by thomas 2011-06-02 */
79 if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) {
80 /* alloc_sz = 1664; */ /* 1664 is 128 alignment. */
81 alloc_sz = (skb_len <= 1650) ? 1664 : (skb_len + 14);
82 } else {
83 alloc_sz = skb_len;
84 /* 6 is for IP header 8 bytes alignment in QoS packet case. */
85 /* 8 is for skb->data 4 bytes alignment. */
86 alloc_sz += 14;
87 }
88
89 pkt_copy = rtw_skb_alloc(alloc_sz);
90
91 if (pkt_copy) {
92 pkt_copy->dev = padapter->pnetdev;
93 pkt_copy->len = skb_len;
94 precvframe->u.hdr.pkt = pkt_copy;
95 precvframe->u.hdr.rx_head = pkt_copy->head;
96 precvframe->u.hdr.rx_end = pkt_copy->data + alloc_sz;
97 skb_reserve(pkt_copy, 8 - ((SIZE_PTR)(pkt_copy->data) & 7)); /* force pkt_copy->data at 8-byte alignment address */
98 skb_reserve(pkt_copy, shift_sz);/* force ip_hdr at 8-byte alignment address according to shift_sz. */
99 _rtw_memcpy(pkt_copy->data, pdata, skb_len);
100 precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pkt_copy->data;
101 } else {
102 #if 0
103 {
104 rtw_free_recvframe(precvframe_if2, &precvpriv->free_recv_queue);
105 rtw_enqueue_recvbuf_to_head(precvbuf, &precvpriv->recv_buf_pending_queue);
106
107 /* The case of can't allocate skb is serious and may never be recovered,
108 once bDriverStopped is enable, this task should be stopped.*/
109 if (!rtw_is_drv_stopped(secondary_padapter))
110 #ifdef PLATFORM_LINUX
111 tasklet_schedule(&precvpriv->recv_tasklet);
112 #endif
113 return ret;
114 }
115
116 #endif
117
118 #ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
119 RTW_INFO("%s:can not allocate memory for skb copy\n", __func__);
120
121 precvframe->u.hdr.pkt = NULL;
122
123 /* rtw_free_recvframe(precvframe, pfree_recv_queue); */
124 /*exit_rtw_os_recv_resource_alloc;*/
125
126 res = _FAIL;
127 #else
128 if ((pattrib->mfrag == 1) && (pattrib->frag_num == 0)) {
129 RTW_INFO("%s: alloc_skb fail , drop frag frame\n", __FUNCTION__);
130 /* rtw_free_recvframe(precvframe, pfree_recv_queue); */
131 res = _FAIL;
132 goto exit_rtw_os_recv_resource_alloc;
133 }
134
135 if (pskb == NULL) {
136 res = _FAIL;
137 goto exit_rtw_os_recv_resource_alloc;
138 }
139
140 precvframe->u.hdr.pkt = rtw_skb_clone(pskb);
141 if (precvframe->u.hdr.pkt) {
142 precvframe->u.hdr.pkt->dev = padapter->pnetdev;
143 precvframe->u.hdr.rx_head = precvframe->u.hdr.rx_data = precvframe->u.hdr.rx_tail = pdata;
144 precvframe->u.hdr.rx_end = pdata + alloc_sz;
145 } else {
146 RTW_INFO("%s: rtw_skb_clone fail\n", __FUNCTION__);
147 /* rtw_free_recvframe(precvframe, pfree_recv_queue); */
148 /*exit_rtw_os_recv_resource_alloc;*/
149 res = _FAIL;
150 }
151 #endif
152 }
153
154 exit_rtw_os_recv_resource_alloc:
155
156 return res;
157
158 }
159
rtw_os_free_recvframe(union recv_frame * precvframe)160 void rtw_os_free_recvframe(union recv_frame *precvframe)
161 {
162 if (precvframe->u.hdr.pkt) {
163 rtw_os_pkt_free(precvframe->u.hdr.pkt);
164 precvframe->u.hdr.pkt = NULL;
165 }
166 }
167
168 /* init os related resource in struct recv_priv */
rtw_os_recv_resource_init(struct recv_priv * precvpriv,_adapter * padapter)169 int rtw_os_recv_resource_init(struct recv_priv *precvpriv, _adapter *padapter)
170 {
171 int res = _SUCCESS;
172
173
174 #ifdef CONFIG_RTW_NAPI
175 skb_queue_head_init(&precvpriv->rx_napi_skb_queue);
176 #endif /* CONFIG_RTW_NAPI */
177
178 return res;
179 }
180
181 /* alloc os related resource in union recv_frame */
rtw_os_recv_resource_alloc(_adapter * padapter,union recv_frame * precvframe)182 int rtw_os_recv_resource_alloc(_adapter *padapter, union recv_frame *precvframe)
183 {
184 int res = _SUCCESS;
185
186 precvframe->u.hdr.pkt = NULL;
187
188 return res;
189 }
190
191 /* free os related resource in union recv_frame */
rtw_os_recv_resource_free(struct recv_priv * precvpriv)192 void rtw_os_recv_resource_free(struct recv_priv *precvpriv)
193 {
194 sint i;
195 union recv_frame *precvframe;
196 precvframe = (union recv_frame *) precvpriv->precv_frame_buf;
197
198
199 #ifdef CONFIG_RTW_NAPI
200 if (skb_queue_len(&precvpriv->rx_napi_skb_queue))
201 RTW_WARN("rx_napi_skb_queue not empty\n");
202 rtw_skb_queue_purge(&precvpriv->rx_napi_skb_queue);
203 #endif /* CONFIG_RTW_NAPI */
204
205 for (i = 0; i < NR_RECVFRAME; i++) {
206 rtw_os_free_recvframe(precvframe);
207 precvframe++;
208 }
209 }
210
211 #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
212 #if !defined(CONFIG_RTL8822B) && !defined(CONFIG_RTL8822C)
213 #ifdef CONFIG_SDIO_RX_COPY
sdio_init_recvbuf_with_skb(struct recv_priv * recvpriv,struct recv_buf * rbuf,u32 size)214 static int sdio_init_recvbuf_with_skb(struct recv_priv *recvpriv, struct recv_buf *rbuf, u32 size)
215 {
216 #ifdef CONFIG_PREALLOC_RX_SKB_BUFFER
217 if (RBUF_IS_PREALLOC(rbuf)) {
218 rbuf->pskb = rtw_alloc_skb_premem(size);
219 if (!rbuf->pskb) {
220 RTW_WARN("%s: Fail to get pre-alloc skb! size=%d\n", __func__, size);
221 return _FAIL;
222 }
223 skb_set_tail_pointer(rbuf->pskb, 0); /* TODO: do this in RTKM */
224 } else
225 #else
226 {
227 SIZE_PTR tmpaddr = 0;
228 SIZE_PTR alignment = 0;
229
230 rbuf->pskb = rtw_skb_alloc(size + RECVBUFF_ALIGN_SZ);
231 if (!rbuf->pskb)
232 return _FAIL;
233
234 tmpaddr = (SIZE_PTR)rbuf->pskb->data;
235 alignment = tmpaddr & (RECVBUFF_ALIGN_SZ - 1);
236 skb_reserve(rbuf->pskb, (RECVBUFF_ALIGN_SZ - alignment));
237 }
238 #endif
239
240 rbuf->pskb->dev = recvpriv->adapter->pnetdev;
241
242 /* init recvbuf */
243 rbuf->phead = rbuf->pskb->head;
244 rbuf->pdata = rbuf->pskb->data;
245 rbuf->ptail = skb_tail_pointer(rbuf->pskb);
246 rbuf->pend = skb_end_pointer(rbuf->pskb);
247 rbuf->len = 0;
248
249 return _SUCCESS;
250 }
251 #endif /* CONFIG_SDIO_RX_COPY */
252 #endif /* !defined(CONFIG_RTL8822B) && !defined(CONFIG_RTL8822C) */
253 #endif /* defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI) */
254
255 /* alloc os related resource in struct recv_buf */
rtw_os_recvbuf_resource_alloc(_adapter * padapter,struct recv_buf * precvbuf,u32 size)256 int rtw_os_recvbuf_resource_alloc(_adapter *padapter, struct recv_buf *precvbuf, u32 size)
257 {
258 int res = _SUCCESS;
259
260 #ifdef CONFIG_USB_HCI
261 #ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
262 struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
263 struct usb_device *pusbd = pdvobjpriv->pusbdev;
264 #endif
265
266 precvbuf->irp_pending = _FALSE;
267 precvbuf->purb = usb_alloc_urb(0, GFP_KERNEL);
268 if (precvbuf->purb == NULL)
269 res = _FAIL;
270
271 precvbuf->pskb = NULL;
272
273 precvbuf->pallocated_buf = precvbuf->pbuf = NULL;
274
275 precvbuf->pdata = precvbuf->phead = precvbuf->ptail = precvbuf->pend = NULL;
276
277 precvbuf->transfer_len = 0;
278
279 precvbuf->len = 0;
280
281 #ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
282 precvbuf->pallocated_buf = rtw_usb_buffer_alloc(pusbd, (size_t)size, &precvbuf->dma_transfer_addr);
283 precvbuf->pbuf = precvbuf->pallocated_buf;
284 if (precvbuf->pallocated_buf == NULL)
285 return _FAIL;
286 #endif /* CONFIG_USE_USB_BUFFER_ALLOC_RX */
287
288 #elif defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
289 #if !defined(CONFIG_RTL8822B) && !defined(CONFIG_RTL8822C)
290 #ifdef CONFIG_SDIO_RX_COPY
291 res = sdio_init_recvbuf_with_skb(&padapter->recvpriv, precvbuf, size);
292 #endif
293 #endif
294
295 #endif /* CONFIG_XXX_HCI */
296
297 return res;
298 }
299
300 /* free os related resource in struct recv_buf */
rtw_os_recvbuf_resource_free(_adapter * padapter,struct recv_buf * precvbuf)301 int rtw_os_recvbuf_resource_free(_adapter *padapter, struct recv_buf *precvbuf)
302 {
303 int ret = _SUCCESS;
304
305 #ifdef CONFIG_USB_HCI
306
307 #ifdef CONFIG_USE_USB_BUFFER_ALLOC_RX
308
309 struct dvobj_priv *pdvobjpriv = adapter_to_dvobj(padapter);
310 struct usb_device *pusbd = pdvobjpriv->pusbdev;
311
312 rtw_usb_buffer_free(pusbd, (size_t)precvbuf->alloc_sz, precvbuf->pallocated_buf, precvbuf->dma_transfer_addr);
313 precvbuf->pallocated_buf = NULL;
314 precvbuf->dma_transfer_addr = 0;
315
316 #endif /* CONFIG_USE_USB_BUFFER_ALLOC_RX */
317
318 if (precvbuf->purb) {
319 /* usb_kill_urb(precvbuf->purb); */
320 usb_free_urb(precvbuf->purb);
321 }
322
323 #endif /* CONFIG_USB_HCI */
324
325
326 if (precvbuf->pskb) {
327 #ifdef CONFIG_PREALLOC_RX_SKB_BUFFER
328 if (rtw_free_skb_premem(precvbuf->pskb) != 0)
329 #endif
330 rtw_skb_free(precvbuf->pskb);
331 }
332 return ret;
333
334 }
335
rtw_os_alloc_msdu_pkt(union recv_frame * prframe,const u8 * da,const u8 * sa,u8 * msdu,u16 msdu_len,enum rtw_rx_llc_hdl llc_hdl)336 _pkt *rtw_os_alloc_msdu_pkt(union recv_frame *prframe, const u8 *da, const u8 *sa
337 , u8 *msdu ,u16 msdu_len, enum rtw_rx_llc_hdl llc_hdl)
338 {
339 u8 *data_ptr;
340 _pkt *sub_skb;
341 struct rx_pkt_attrib *pattrib;
342
343 pattrib = &prframe->u.hdr.attrib;
344
345 #ifdef CONFIG_SKB_COPY
346 sub_skb = rtw_skb_alloc(msdu_len + 14);
347 if (sub_skb) {
348 skb_reserve(sub_skb, 14);
349 data_ptr = (u8 *)skb_put(sub_skb, msdu_len);
350 _rtw_memcpy(data_ptr, msdu, msdu_len);
351 } else
352 #endif /* CONFIG_SKB_COPY */
353 {
354 sub_skb = rtw_skb_clone(prframe->u.hdr.pkt);
355 if (sub_skb) {
356 sub_skb->data = msdu;
357 sub_skb->len = msdu_len;
358 skb_set_tail_pointer(sub_skb, msdu_len);
359 } else {
360 RTW_INFO("%s(): rtw_skb_clone() Fail!!!\n", __FUNCTION__);
361 return NULL;
362 }
363 }
364
365 if (llc_hdl) {
366 /* remove RFC1042 or Bridge-Tunnel encapsulation and replace EtherType */
367 skb_pull(sub_skb, SNAP_SIZE);
368 _rtw_memcpy(skb_push(sub_skb, ETH_ALEN), sa, ETH_ALEN);
369 _rtw_memcpy(skb_push(sub_skb, ETH_ALEN), da, ETH_ALEN);
370 } else {
371 /* Leave Ethernet header part of hdr and full payload */
372 u16 len;
373
374 len = htons(sub_skb->len);
375 _rtw_memcpy(skb_push(sub_skb, 2), &len, 2);
376 _rtw_memcpy(skb_push(sub_skb, ETH_ALEN), sa, ETH_ALEN);
377 _rtw_memcpy(skb_push(sub_skb, ETH_ALEN), da, ETH_ALEN);
378 }
379
380 return sub_skb;
381 }
382
383 #ifdef CONFIG_RTW_NAPI
napi_recv(_adapter * padapter,int budget)384 static int napi_recv(_adapter *padapter, int budget)
385 {
386 _pkt *pskb;
387 struct recv_priv *precvpriv = &padapter->recvpriv;
388 int work_done = 0;
389 struct registry_priv *pregistrypriv = &padapter->registrypriv;
390 u8 rx_ok;
391
392
393 while ((work_done < budget) &&
394 (!skb_queue_empty(&precvpriv->rx_napi_skb_queue))) {
395 pskb = skb_dequeue(&precvpriv->rx_napi_skb_queue);
396 if (!pskb)
397 break;
398
399 rx_ok = _FALSE;
400
401 #ifdef CONFIG_RTW_GRO
402 /*
403 cloned SKB use dataref to avoid kernel release it.
404 But dataref changed in napi_gro_receive.
405 So, we should prevent cloned SKB go into napi_gro_receive.
406 */
407 if (pregistrypriv->en_gro && !skb_cloned(pskb)) {
408 if (rtw_napi_gro_receive(&padapter->napi, pskb) != GRO_DROP)
409 rx_ok = _TRUE;
410 goto next;
411 }
412 #endif /* CONFIG_RTW_GRO */
413
414 if (rtw_netif_receive_skb(padapter->pnetdev, pskb) == NET_RX_SUCCESS)
415 rx_ok = _TRUE;
416
417 next:
418 if (rx_ok == _TRUE) {
419 work_done++;
420 DBG_COUNTER(padapter->rx_logs.os_netif_ok);
421 } else {
422 DBG_COUNTER(padapter->rx_logs.os_netif_err);
423 }
424 }
425
426 return work_done;
427 }
428
rtw_recv_napi_poll(struct napi_struct * napi,int budget)429 int rtw_recv_napi_poll(struct napi_struct *napi, int budget)
430 {
431 _adapter *padapter = container_of(napi, _adapter, napi);
432 int work_done = 0;
433 struct recv_priv *precvpriv = &padapter->recvpriv;
434
435
436 work_done = napi_recv(padapter, budget);
437 if (work_done < budget) {
438 #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3, 19, 0)) && defined(CONFIG_PCI_HCI)
439 napi_complete_done(napi, work_done);
440 #else
441 napi_complete(napi);
442 #endif
443 if (!skb_queue_empty(&precvpriv->rx_napi_skb_queue))
444 napi_schedule(napi);
445 }
446
447 return work_done;
448 }
449
450 #ifdef CONFIG_RTW_NAPI_DYNAMIC
dynamic_napi_th_chk(_adapter * adapter)451 void dynamic_napi_th_chk (_adapter *adapter)
452 {
453
454 if (adapter->registrypriv.en_napi) {
455 struct dvobj_priv *dvobj;
456 struct registry_priv *registry;
457
458 dvobj = adapter_to_dvobj(adapter);
459 registry = &adapter->registrypriv;
460 if (dvobj->traffic_stat.cur_rx_tp > registry->napi_threshold)
461 dvobj->en_napi_dynamic = 1;
462 else
463 dvobj->en_napi_dynamic = 0;
464 }
465
466 }
467 #endif /* CONFIG_RTW_NAPI_DYNAMIC */
468 #endif /* CONFIG_RTW_NAPI */
469
rtw_os_recv_indicate_pkt(_adapter * padapter,_pkt * pkt,union recv_frame * rframe)470 void rtw_os_recv_indicate_pkt(_adapter *padapter, _pkt *pkt, union recv_frame *rframe)
471 {
472 struct mlme_priv *pmlmepriv = &padapter->mlmepriv;
473 struct recv_priv *precvpriv = &(padapter->recvpriv);
474 struct registry_priv *pregistrypriv = &padapter->registrypriv;
475 #ifdef CONFIG_BR_EXT
476 void *br_port = NULL;
477 #endif
478 int ret;
479
480 /* Indicat the packets to upper layer */
481 if (pkt) {
482 struct ethhdr *ehdr = (struct ethhdr *)pkt->data;
483
484 DBG_COUNTER(padapter->rx_logs.os_indicate);
485
486 #ifdef CONFIG_BR_EXT
487 if (!adapter_use_wds(padapter) && check_fwstate(pmlmepriv, WIFI_STATION_STATE | WIFI_ADHOC_STATE) == _TRUE) {
488 /* Insert NAT2.5 RX here! */
489 #if (LINUX_VERSION_CODE <= KERNEL_VERSION(2, 6, 35))
490 br_port = padapter->pnetdev->br_port;
491 #else
492 rcu_read_lock();
493 br_port = rcu_dereference(padapter->pnetdev->rx_handler_data);
494 rcu_read_unlock();
495 #endif
496
497 if (br_port) {
498 int nat25_handle_frame(_adapter *priv, struct sk_buff *skb);
499
500 if (nat25_handle_frame(padapter, pkt) == -1) {
501 /* priv->ext_stats.rx_data_drops++; */
502 /* DEBUG_ERR("RX DROP: nat25_handle_frame fail!\n"); */
503 /* return FAIL; */
504
505 #if 1
506 /* bypass this frame to upper layer!! */
507 #else
508 rtw_skb_free(sub_skb);
509 continue;
510 #endif
511 }
512 }
513 }
514 #endif /* CONFIG_BR_EXT */
515
516 /* After eth_type_trans process , pkt->data pointer will move from ethrnet header to ip header */
517 pkt->protocol = eth_type_trans(pkt, padapter->pnetdev);
518 pkt->dev = padapter->pnetdev;
519 pkt->ip_summed = CHECKSUM_NONE; /* CONFIG_TCP_CSUM_OFFLOAD_RX */
520 #ifdef CONFIG_TCP_CSUM_OFFLOAD_RX
521 if ((rframe->u.hdr.attrib.csum_valid == 1)
522 && (rframe->u.hdr.attrib.csum_err == 0))
523 pkt->ip_summed = CHECKSUM_UNNECESSARY;
524 #endif /* CONFIG_TCP_CSUM_OFFLOAD_RX */
525
526 #ifdef CONFIG_RTW_NAPI
527 #ifdef CONFIG_RTW_NAPI_DYNAMIC
528 if (!skb_queue_empty(&precvpriv->rx_napi_skb_queue)
529 && !adapter_to_dvobj(padapter)->en_napi_dynamic
530 )
531 napi_recv(padapter, RTL_NAPI_WEIGHT);
532 #endif
533
534 if (pregistrypriv->en_napi
535 #ifdef CONFIG_RTW_NAPI_DYNAMIC
536 && adapter_to_dvobj(padapter)->en_napi_dynamic
537 #endif
538 ) {
539 skb_queue_tail(&precvpriv->rx_napi_skb_queue, pkt);
540 #ifndef CONFIG_RTW_NAPI_V2
541 napi_schedule(&padapter->napi);
542 #endif
543 return;
544 }
545 #endif /* CONFIG_RTW_NAPI */
546
547 ret = rtw_netif_rx(padapter->pnetdev, pkt);
548 if (ret == NET_RX_SUCCESS)
549 DBG_COUNTER(padapter->rx_logs.os_netif_ok);
550 else
551 DBG_COUNTER(padapter->rx_logs.os_netif_err);
552 }
553 }
554
rtw_handle_tkip_mic_err(_adapter * padapter,struct sta_info * sta,u8 bgroup)555 void rtw_handle_tkip_mic_err(_adapter *padapter, struct sta_info *sta, u8 bgroup)
556 {
557 #ifdef CONFIG_IOCTL_CFG80211
558 enum nl80211_key_type key_type = 0;
559 #endif
560 union iwreq_data wrqu;
561 struct iw_michaelmicfailure ev;
562 struct security_priv *psecuritypriv = &padapter->securitypriv;
563 systime cur_time = 0;
564
565 if (psecuritypriv->last_mic_err_time == 0)
566 psecuritypriv->last_mic_err_time = rtw_get_current_time();
567 else {
568 cur_time = rtw_get_current_time();
569
570 if (cur_time - psecuritypriv->last_mic_err_time < 60 * HZ) {
571 psecuritypriv->btkip_countermeasure = _TRUE;
572 psecuritypriv->last_mic_err_time = 0;
573 psecuritypriv->btkip_countermeasure_time = cur_time;
574 } else
575 psecuritypriv->last_mic_err_time = rtw_get_current_time();
576 }
577
578 #ifdef CONFIG_IOCTL_CFG80211
579 if (bgroup)
580 key_type |= NL80211_KEYTYPE_GROUP;
581 else
582 key_type |= NL80211_KEYTYPE_PAIRWISE;
583
584 cfg80211_michael_mic_failure(padapter->pnetdev, sta->cmn.mac_addr, key_type, -1, NULL, GFP_ATOMIC);
585 #endif
586
587 _rtw_memset(&ev, 0x00, sizeof(ev));
588 if (bgroup)
589 ev.flags |= IW_MICFAILURE_GROUP;
590 else
591 ev.flags |= IW_MICFAILURE_PAIRWISE;
592
593 ev.src_addr.sa_family = ARPHRD_ETHER;
594 _rtw_memcpy(ev.src_addr.sa_data, sta->cmn.mac_addr, ETH_ALEN);
595
596 _rtw_memset(&wrqu, 0x00, sizeof(wrqu));
597 wrqu.data.length = sizeof(ev);
598
599 #ifndef CONFIG_IOCTL_CFG80211
600 wireless_send_event(padapter->pnetdev, IWEVMICHAELMICFAILURE, &wrqu, (char *) &ev);
601 #endif
602 }
603
604 #ifdef CONFIG_HOSTAPD_MLME
rtw_hostapd_mlme_rx(_adapter * padapter,union recv_frame * precv_frame)605 void rtw_hostapd_mlme_rx(_adapter *padapter, union recv_frame *precv_frame)
606 {
607 _pkt *skb;
608 struct hostapd_priv *phostapdpriv = padapter->phostapdpriv;
609 struct net_device *pmgnt_netdev = phostapdpriv->pmgnt_netdev;
610
611
612 skb = precv_frame->u.hdr.pkt;
613
614 if (skb == NULL)
615 return;
616
617 skb->data = precv_frame->u.hdr.rx_data;
618 skb->tail = precv_frame->u.hdr.rx_tail;
619 skb->len = precv_frame->u.hdr.len;
620
621 /* pskb_copy = rtw_skb_copy(skb);
622 * if(skb == NULL) goto _exit; */
623
624 skb->dev = pmgnt_netdev;
625 skb->ip_summed = CHECKSUM_NONE;
626 skb->pkt_type = PACKET_OTHERHOST;
627 /* skb->protocol = __constant_htons(0x0019); ETH_P_80211_RAW */
628 skb->protocol = __constant_htons(0x0003); /*ETH_P_80211_RAW*/
629
630 /* RTW_INFO("(1)data=0x%x, head=0x%x, tail=0x%x, mac_header=0x%x, len=%d\n", skb->data, skb->head, skb->tail, skb->mac_header, skb->len); */
631
632 /* skb->mac.raw = skb->data; */
633 skb_reset_mac_header(skb);
634
635 /* skb_pull(skb, 24); */
636 _rtw_memset(skb->cb, 0, sizeof(skb->cb));
637
638 rtw_netif_rx(pmgnt_netdev, skb);
639
640 precv_frame->u.hdr.pkt = NULL; /* set pointer to NULL before rtw_free_recvframe() if call rtw_netif_rx() */
641 }
642 #endif /* CONFIG_HOSTAPD_MLME */
643
644 #ifdef CONFIG_WIFI_MONITOR
645 /*
646 precv_frame: impossible to be NULL
647 precv_frame: free by caller
648 */
rtw_recv_monitor(_adapter * padapter,union recv_frame * precv_frame)649 int rtw_recv_monitor(_adapter *padapter, union recv_frame *precv_frame)
650 {
651 int ret = _FAIL;
652 _pkt *skb;
653
654 skb = precv_frame->u.hdr.pkt;
655 if (skb == NULL) {
656 RTW_INFO("%s :skb==NULL something wrong!!!!\n", __func__);
657 goto _recv_drop;
658 }
659
660 skb->data = precv_frame->u.hdr.rx_data;
661 skb_set_tail_pointer(skb, precv_frame->u.hdr.len);
662 skb->len = precv_frame->u.hdr.len;
663 skb->ip_summed = CHECKSUM_NONE;
664 skb->pkt_type = PACKET_OTHERHOST;
665 skb->protocol = htons(0x0019); /* ETH_P_80211_RAW */
666
667 /* send to kernel */
668 rtw_netif_rx(padapter->pnetdev, skb);
669
670 /* pointers to NULL before rtw_free_recvframe() */
671 precv_frame->u.hdr.pkt = NULL;
672
673 ret = _SUCCESS;
674
675 _recv_drop:
676 return ret;
677 }
678 #endif /* CONFIG_WIFI_MONITOR */
679
rtw_rframe_set_os_pkt(union recv_frame * rframe)680 inline void rtw_rframe_set_os_pkt(union recv_frame *rframe)
681 {
682 _pkt *skb = rframe->u.hdr.pkt;
683
684 skb->data = rframe->u.hdr.rx_data;
685 skb_set_tail_pointer(skb, rframe->u.hdr.len);
686 skb->len = rframe->u.hdr.len;
687 }
688
rtw_recv_indicatepkt(_adapter * padapter,union recv_frame * precv_frame)689 int rtw_recv_indicatepkt(_adapter *padapter, union recv_frame *precv_frame)
690 {
691 struct recv_priv *precvpriv;
692 _queue *pfree_recv_queue;
693
694 precvpriv = &(padapter->recvpriv);
695 pfree_recv_queue = &(precvpriv->free_recv_queue);
696
697 if (precv_frame->u.hdr.pkt == NULL)
698 goto _recv_indicatepkt_drop;
699
700 rtw_os_recv_indicate_pkt(padapter, precv_frame->u.hdr.pkt, precv_frame);
701
702 precv_frame->u.hdr.pkt = NULL;
703 rtw_free_recvframe(precv_frame, pfree_recv_queue);
704 return _SUCCESS;
705
706 _recv_indicatepkt_drop:
707 rtw_free_recvframe(precv_frame, pfree_recv_queue);
708 DBG_COUNTER(padapter->rx_logs.os_indicate_err);
709 return _FAIL;
710 }
711
rtw_os_read_port(_adapter * padapter,struct recv_buf * precvbuf)712 void rtw_os_read_port(_adapter *padapter, struct recv_buf *precvbuf)
713 {
714 #ifdef CONFIG_USB_HCI
715 struct recv_priv *precvpriv = &padapter->recvpriv;
716
717 precvbuf->ref_cnt--;
718
719 /* free skb in recv_buf */
720 rtw_skb_free(precvbuf->pskb);
721
722 precvbuf->pskb = NULL;
723
724 if (precvbuf->irp_pending == _FALSE)
725 rtw_read_port(padapter, precvpriv->ff_hwaddr, 0, (unsigned char *)precvbuf);
726
727
728 #endif
729 #if defined(CONFIG_SDIO_HCI) || defined(CONFIG_GSPI_HCI)
730 precvbuf->pskb = NULL;
731 #endif
732
733 }
734
735