1 /******************************************************************************
2 *
3 * Copyright(c) 2007 - 2011 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_STA_MGT_C_
16
17 #include <osdep_service.h>
18 #include <drv_types.h>
19 #include <recv_osdep.h>
20 #include <xmit_osdep.h>
21 #include <mlme_osdep.h>
22 #include <sta_info.h>
23 #include <rtl8723a_hal.h>
24
25 static const u8 bc_addr[ETH_ALEN] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
26
_rtw_init_stainfo(struct sta_info * psta)27 static void _rtw_init_stainfo(struct sta_info *psta)
28 {
29 memset((u8 *)psta, 0, sizeof(struct sta_info));
30 spin_lock_init(&psta->lock);
31 INIT_LIST_HEAD(&psta->list);
32 INIT_LIST_HEAD(&psta->hash_list);
33 _rtw_init_queue23a(&psta->sleep_q);
34 psta->sleepq_len = 0;
35 _rtw_init_sta_xmit_priv23a(&psta->sta_xmitpriv);
36 _rtw_init_sta_recv_priv23a(&psta->sta_recvpriv);
37 #ifdef CONFIG_8723AU_AP_MODE
38 INIT_LIST_HEAD(&psta->asoc_list);
39 INIT_LIST_HEAD(&psta->auth_list);
40 psta->expire_to = 0;
41 psta->flags = 0;
42 psta->capability = 0;
43 psta->bpairwise_key_installed = false;
44 psta->nonerp_set = 0;
45 psta->no_short_slot_time_set = 0;
46 psta->no_short_preamble_set = 0;
47 psta->no_ht_gf_set = 0;
48 psta->no_ht_set = 0;
49 psta->ht_20mhz_set = 0;
50 psta->keep_alive_trycnt = 0;
51 #endif /* CONFIG_8723AU_AP_MODE */
52 }
53
_rtw_init_sta_priv23a(struct sta_priv * pstapriv)54 int _rtw_init_sta_priv23a(struct sta_priv *pstapriv)
55 {
56 int i;
57
58 spin_lock_init(&pstapriv->sta_hash_lock);
59 pstapriv->asoc_sta_count = 0;
60 for (i = 0; i < NUM_STA; i++)
61 INIT_LIST_HEAD(&pstapriv->sta_hash[i]);
62
63 #ifdef CONFIG_8723AU_AP_MODE
64 pstapriv->sta_dz_bitmap = 0;
65 pstapriv->tim_bitmap = 0;
66 INIT_LIST_HEAD(&pstapriv->asoc_list);
67 INIT_LIST_HEAD(&pstapriv->auth_list);
68 spin_lock_init(&pstapriv->asoc_list_lock);
69 spin_lock_init(&pstapriv->auth_list_lock);
70 pstapriv->asoc_list_cnt = 0;
71 pstapriv->auth_list_cnt = 0;
72 pstapriv->auth_to = 3; /* 3*2 = 6 sec */
73 pstapriv->assoc_to = 3;
74 /* pstapriv->expire_to = 900; 900*2 = 1800 sec = 30 min,
75 expire after no any traffic. */
76 /* pstapriv->expire_to = 30; 30*2 = 60 sec = 1 min,
77 expire after no any traffic. */
78 pstapriv->expire_to = 3; /* 3*2 = 6 sec */
79 pstapriv->max_num_sta = NUM_STA;
80 #endif
81 return _SUCCESS;
82 }
83
_rtw_free_sta_priv23a(struct sta_priv * pstapriv)84 int _rtw_free_sta_priv23a(struct sta_priv *pstapriv)
85 {
86 struct list_head *phead, *plist, *ptmp;
87 struct sta_info *psta;
88 struct recv_reorder_ctrl *preorder_ctrl;
89 int index;
90
91 if (pstapriv) {
92 /* delete all reordering_ctrl_timer */
93 spin_lock_bh(&pstapriv->sta_hash_lock);
94 for (index = 0; index < NUM_STA; index++) {
95 phead = &pstapriv->sta_hash[index];
96
97 list_for_each_safe(plist, ptmp, phead) {
98 int i;
99
100 psta = container_of(plist, struct sta_info,
101 hash_list);
102 for (i = 0; i < 16 ; i++) {
103 preorder_ctrl = &psta->recvreorder_ctrl[i];
104 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
105 }
106 }
107 }
108 spin_unlock_bh(&pstapriv->sta_hash_lock);
109 /*===============================*/
110 }
111 return _SUCCESS;
112 }
113
114 struct sta_info *
rtw_alloc_stainfo23a(struct sta_priv * pstapriv,const u8 * hwaddr,gfp_t gfp)115 rtw_alloc_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr, gfp_t gfp)
116 {
117 struct list_head *phash_list;
118 struct sta_info *psta;
119 struct recv_reorder_ctrl *preorder_ctrl;
120 s32 index;
121 int i = 0;
122 u16 wRxSeqInitialValue = 0xffff;
123
124 psta = kmalloc(sizeof(struct sta_info), gfp);
125 if (!psta)
126 return NULL;
127
128 spin_lock_bh(&pstapriv->sta_hash_lock);
129
130 _rtw_init_stainfo(psta);
131
132 psta->padapter = pstapriv->padapter;
133
134 ether_addr_copy(psta->hwaddr, hwaddr);
135
136 index = wifi_mac_hash(hwaddr);
137
138 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_,
139 ("rtw_alloc_stainfo23a: index = %x", index));
140 if (index >= NUM_STA) {
141 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
142 ("ERROR => rtw_alloc_stainfo23a: index >= NUM_STA"));
143 psta = NULL;
144 goto exit;
145 }
146 phash_list = &pstapriv->sta_hash[index];
147
148 list_add_tail(&psta->hash_list, phash_list);
149
150 pstapriv->asoc_sta_count++;
151
152 /* For the SMC router, the sequence number of first packet of WPS
153 handshake will be 0. */
154 /* In this case, this packet will be dropped by recv_decache function
155 if we use the 0x00 as the default value for tid_rxseq variable. */
156 /* So, we initialize the tid_rxseq variable as the 0xffff. */
157
158 for (i = 0; i < 16; i++)
159 memcpy(&psta->sta_recvpriv.rxcache.tid_rxseq[i],
160 &wRxSeqInitialValue, 2);
161
162 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_info_,
163 ("alloc number_%d stainfo with hwaddr = %pM\n",
164 pstapriv->asoc_sta_count, hwaddr));
165
166 init_addba_retry_timer23a(psta);
167
168 /* for A-MPDU Rx reordering buffer control */
169 for (i = 0; i < 16; i++) {
170 preorder_ctrl = &psta->recvreorder_ctrl[i];
171
172 preorder_ctrl->padapter = pstapriv->padapter;
173
174 preorder_ctrl->enable = false;
175
176 preorder_ctrl->indicate_seq = 0xffff;
177 preorder_ctrl->wend_b = 0xffff;
178 /* preorder_ctrl->wsize_b = (NR_RECVBUFF-2); */
179 preorder_ctrl->wsize_b = 64;/* 64; */
180
181 _rtw_init_queue23a(&preorder_ctrl->pending_recvframe_queue);
182
183 rtw_init_recv_timer23a(preorder_ctrl);
184 }
185 /* init for DM */
186 psta->rssi_stat.UndecoratedSmoothedPWDB = (-1);
187 psta->rssi_stat.UndecoratedSmoothedCCK = (-1);
188
189 /* init for the sequence number of received management frame */
190 psta->RxMgmtFrameSeqNum = 0xffff;
191 exit:
192 spin_unlock_bh(&pstapriv->sta_hash_lock);
193 return psta;
194 }
195
196 /* using pstapriv->sta_hash_lock to protect */
rtw_free_stainfo23a(struct rtw_adapter * padapter,struct sta_info * psta)197 int rtw_free_stainfo23a(struct rtw_adapter *padapter, struct sta_info *psta)
198 {
199 struct recv_reorder_ctrl *preorder_ctrl;
200 struct sta_xmit_priv *pstaxmitpriv;
201 struct xmit_priv *pxmitpriv = &padapter->xmitpriv;
202 struct sta_priv *pstapriv = &padapter->stapriv;
203 struct hw_xmit *phwxmit;
204 int i;
205
206 if (psta == NULL)
207 goto exit;
208
209 spin_lock_bh(&psta->lock);
210 psta->state &= ~_FW_LINKED;
211 spin_unlock_bh(&psta->lock);
212
213 pstaxmitpriv = &psta->sta_xmitpriv;
214
215 spin_lock_bh(&pxmitpriv->lock);
216
217 rtw_free_xmitframe_queue23a(pxmitpriv, &psta->sleep_q);
218 psta->sleepq_len = 0;
219
220 /* vo */
221 rtw_free_xmitframe_queue23a(pxmitpriv, &pstaxmitpriv->vo_q.sta_pending);
222 list_del_init(&pstaxmitpriv->vo_q.tx_pending);
223 phwxmit = pxmitpriv->hwxmits;
224 phwxmit->accnt -= pstaxmitpriv->vo_q.qcnt;
225 pstaxmitpriv->vo_q.qcnt = 0;
226
227 /* vi */
228 rtw_free_xmitframe_queue23a(pxmitpriv, &pstaxmitpriv->vi_q.sta_pending);
229 list_del_init(&pstaxmitpriv->vi_q.tx_pending);
230 phwxmit = pxmitpriv->hwxmits+1;
231 phwxmit->accnt -= pstaxmitpriv->vi_q.qcnt;
232 pstaxmitpriv->vi_q.qcnt = 0;
233
234 /* be */
235 rtw_free_xmitframe_queue23a(pxmitpriv, &pstaxmitpriv->be_q.sta_pending);
236 list_del_init(&pstaxmitpriv->be_q.tx_pending);
237 phwxmit = pxmitpriv->hwxmits+2;
238 phwxmit->accnt -= pstaxmitpriv->be_q.qcnt;
239 pstaxmitpriv->be_q.qcnt = 0;
240
241 /* bk */
242 rtw_free_xmitframe_queue23a(pxmitpriv, &pstaxmitpriv->bk_q.sta_pending);
243 list_del_init(&pstaxmitpriv->bk_q.tx_pending);
244 phwxmit = pxmitpriv->hwxmits+3;
245 phwxmit->accnt -= pstaxmitpriv->bk_q.qcnt;
246 pstaxmitpriv->bk_q.qcnt = 0;
247
248 spin_unlock_bh(&pxmitpriv->lock);
249
250 list_del_init(&psta->hash_list);
251 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
252 ("\n free number_%d stainfo with hwaddr = 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x 0x%.2x\n",
253 pstapriv->asoc_sta_count, psta->hwaddr[0],
254 psta->hwaddr[1], psta->hwaddr[2], psta->hwaddr[3],
255 psta->hwaddr[4], psta->hwaddr[5]));
256 pstapriv->asoc_sta_count--;
257
258 /* re-init sta_info; 20061114 will be init in alloc_stainfo */
259 /* _rtw_init_sta_xmit_priv23a(&psta->sta_xmitpriv); */
260 /* _rtw_init_sta_recv_priv23a(&psta->sta_recvpriv); */
261
262 del_timer_sync(&psta->addba_retry_timer);
263
264 /* for A-MPDU Rx reordering buffer control,
265 cancel reordering_ctrl_timer */
266 for (i = 0; i < 16; i++) {
267 struct list_head *phead, *plist;
268 struct recv_frame *prframe;
269 struct rtw_queue *ppending_recvframe_queue;
270
271 preorder_ctrl = &psta->recvreorder_ctrl[i];
272
273 del_timer_sync(&preorder_ctrl->reordering_ctrl_timer);
274
275 ppending_recvframe_queue =
276 &preorder_ctrl->pending_recvframe_queue;
277
278 spin_lock_bh(&ppending_recvframe_queue->lock);
279 phead = get_list_head(ppending_recvframe_queue);
280 plist = phead->next;
281
282 while (!list_empty(phead)) {
283 prframe = container_of(plist, struct recv_frame, list);
284 plist = plist->next;
285 list_del_init(&prframe->list);
286 rtw_free_recvframe23a(prframe);
287 }
288 spin_unlock_bh(&ppending_recvframe_queue->lock);
289 }
290 if (!(psta->state & WIFI_AP_STATE))
291 rtl8723a_SetHalODMVar(padapter, HAL_ODM_STA_INFO, psta, false);
292 #ifdef CONFIG_8723AU_AP_MODE
293 spin_lock_bh(&pstapriv->auth_list_lock);
294 if (!list_empty(&psta->auth_list)) {
295 list_del_init(&psta->auth_list);
296 pstapriv->auth_list_cnt--;
297 }
298 spin_unlock_bh(&pstapriv->auth_list_lock);
299
300 psta->expire_to = 0;
301
302 psta->sleepq_ac_len = 0;
303 psta->qos_info = 0;
304
305 psta->max_sp_len = 0;
306 psta->uapsd_bk = 0;
307 psta->uapsd_be = 0;
308 psta->uapsd_vi = 0;
309 psta->uapsd_vo = 0;
310
311 psta->has_legacy_ac = 0;
312
313 pstapriv->sta_dz_bitmap &= ~CHKBIT(psta->aid);
314 pstapriv->tim_bitmap &= ~CHKBIT(psta->aid);
315
316 if ((psta->aid > 0) && (pstapriv->sta_aid[psta->aid - 1] == psta)) {
317 pstapriv->sta_aid[psta->aid - 1] = NULL;
318 psta->aid = 0;
319 }
320 #endif /* CONFIG_8723AU_AP_MODE */
321
322 kfree(psta);
323 exit:
324 return _SUCCESS;
325 }
326
327 /* free all stainfo which in sta_hash[all] */
rtw_free_all_stainfo23a(struct rtw_adapter * padapter)328 void rtw_free_all_stainfo23a(struct rtw_adapter *padapter)
329 {
330 struct list_head *plist, *phead, *ptmp;
331 struct sta_info *psta;
332 struct sta_priv *pstapriv = &padapter->stapriv;
333 struct sta_info *pbcmc_stainfo = rtw_get_bcmc_stainfo23a(padapter);
334 s32 index;
335
336 if (pstapriv->asoc_sta_count == 1)
337 return;
338
339 spin_lock_bh(&pstapriv->sta_hash_lock);
340
341 for (index = 0; index < NUM_STA; index++) {
342 phead = &pstapriv->sta_hash[index];
343
344 list_for_each_safe(plist, ptmp, phead) {
345 psta = container_of(plist, struct sta_info, hash_list);
346
347 if (pbcmc_stainfo != psta)
348 rtw_free_stainfo23a(padapter, psta);
349 }
350 }
351 spin_unlock_bh(&pstapriv->sta_hash_lock);
352 }
353
354 /* any station allocated can be searched by hash list */
rtw_get_stainfo23a(struct sta_priv * pstapriv,const u8 * hwaddr)355 struct sta_info *rtw_get_stainfo23a(struct sta_priv *pstapriv, const u8 *hwaddr)
356 {
357 struct list_head *plist, *phead;
358 struct sta_info *psta = NULL;
359 u32 index;
360 const u8 *addr;
361
362 if (hwaddr == NULL)
363 return NULL;
364
365 if (is_multicast_ether_addr(hwaddr))
366 addr = bc_addr;
367 else
368 addr = hwaddr;
369
370 index = wifi_mac_hash(addr);
371
372 spin_lock_bh(&pstapriv->sta_hash_lock);
373
374 phead = &pstapriv->sta_hash[index];
375
376 list_for_each(plist, phead) {
377 psta = container_of(plist, struct sta_info, hash_list);
378
379 /* if found the matched address */
380 if (ether_addr_equal(psta->hwaddr, addr))
381 break;
382
383 psta = NULL;
384 }
385 spin_unlock_bh(&pstapriv->sta_hash_lock);
386 return psta;
387 }
388
rtw_init_bcmc_stainfo23a(struct rtw_adapter * padapter)389 int rtw_init_bcmc_stainfo23a(struct rtw_adapter *padapter)
390 {
391 struct sta_priv *pstapriv = &padapter->stapriv;
392 struct sta_info *psta;
393 struct tx_servq *ptxservq;
394 int res = _SUCCESS;
395
396 psta = rtw_alloc_stainfo23a(pstapriv, bc_addr, GFP_KERNEL);
397 if (psta == NULL) {
398 res = _FAIL;
399 RT_TRACE(_module_rtl871x_sta_mgt_c_, _drv_err_,
400 ("rtw_alloc_stainfo23a fail"));
401 return res;
402 }
403 /* default broadcast & multicast use macid 1 */
404 psta->mac_id = 1;
405
406 ptxservq = &psta->sta_xmitpriv.be_q;
407 return _SUCCESS;
408 }
409
rtw_get_bcmc_stainfo23a(struct rtw_adapter * padapter)410 struct sta_info *rtw_get_bcmc_stainfo23a(struct rtw_adapter *padapter)
411 {
412 struct sta_info *psta;
413 struct sta_priv *pstapriv = &padapter->stapriv;
414
415 psta = rtw_get_stainfo23a(pstapriv, bc_addr);
416 return psta;
417 }
418
rtw_access_ctrl23a(struct rtw_adapter * padapter,u8 * mac_addr)419 bool rtw_access_ctrl23a(struct rtw_adapter *padapter, u8 *mac_addr)
420 {
421 bool res = true;
422 #ifdef CONFIG_8723AU_AP_MODE
423 struct list_head *plist, *phead;
424 struct rtw_wlan_acl_node *paclnode;
425 bool match = false;
426 struct sta_priv *pstapriv = &padapter->stapriv;
427 struct wlan_acl_pool *pacl_list = &pstapriv->acl_list;
428 struct rtw_queue *pacl_node_q = &pacl_list->acl_node_q;
429
430 spin_lock_bh(&pacl_node_q->lock);
431 phead = get_list_head(pacl_node_q);
432
433 list_for_each(plist, phead) {
434 paclnode = container_of(plist, struct rtw_wlan_acl_node, list);
435
436 if (ether_addr_equal(paclnode->addr, mac_addr)) {
437 if (paclnode->valid) {
438 match = true;
439 break;
440 }
441 }
442 }
443 spin_unlock_bh(&pacl_node_q->lock);
444
445 if (pacl_list->mode == 1)/* accept unless in deny list */
446 res = (match) ? false : true;
447 else if (pacl_list->mode == 2)/* deny unless in accept list */
448 res = (match) ? true : false;
449 else
450 res = true;
451 #endif
452 return res;
453 }
454