This source file includes following definitions.
- mwifiex_restore_tdls_packets
- mwifiex_hold_tdls_packets
- mwifiex_tdls_append_rates_ie
- mwifiex_tdls_add_aid
- mwifiex_tdls_add_vht_capab
- mwifiex_tdls_add_ht_oper
- mwifiex_tdls_add_vht_oper
- mwifiex_tdls_add_ext_capab
- mwifiex_tdls_add_qos_capab
- mwifiex_tdls_add_wmm_param_ie
- mwifiex_add_wmm_info_ie
- mwifiex_tdls_add_bss_co_2040
- mwifiex_tdls_add_supported_chan
- mwifiex_tdls_add_oper_class
- mwifiex_prep_tdls_encap_data
- mwifiex_tdls_add_link_ie
- mwifiex_send_tdls_data_frame
- mwifiex_construct_tdls_action_frame
- mwifiex_send_tdls_action_frame
- mwifiex_process_tdls_action_frame
- mwifiex_tdls_process_config_link
- mwifiex_tdls_process_create_link
- mwifiex_tdls_process_disable_link
- mwifiex_tdls_process_enable_link
- mwifiex_tdls_oper
- mwifiex_get_tdls_link_status
- mwifiex_get_tdls_list
- mwifiex_disable_all_tdls_links
- mwifiex_tdls_check_tx
- mwifiex_flush_auto_tdls_list
- mwifiex_add_auto_tdls_peer
- mwifiex_auto_tdls_update_peer_status
- mwifiex_auto_tdls_update_peer_signal
- mwifiex_check_auto_tdls
- mwifiex_setup_auto_tdls_timer
- mwifiex_clean_auto_tdls
- mwifiex_config_tdls
- mwifiex_config_tdls_enable
- mwifiex_config_tdls_disable
- mwifiex_config_tdls_cs_params
- mwifiex_stop_tdls_cs
- mwifiex_start_tdls_cs
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18 #include "main.h"
19 #include "wmm.h"
20 #include "11n.h"
21 #include "11n_rxreorder.h"
22 #include "11ac.h"
23
24 #define TDLS_REQ_FIX_LEN 6
25 #define TDLS_RESP_FIX_LEN 8
26 #define TDLS_CONFIRM_FIX_LEN 6
27 #define MWIFIEX_TDLS_WMM_INFO_SIZE 7
28
29 static void mwifiex_restore_tdls_packets(struct mwifiex_private *priv,
30 const u8 *mac, u8 status)
31 {
32 struct mwifiex_ra_list_tbl *ra_list;
33 struct list_head *tid_list;
34 struct sk_buff *skb, *tmp;
35 struct mwifiex_txinfo *tx_info;
36 u32 tid;
37 u8 tid_down;
38
39 mwifiex_dbg(priv->adapter, DATA, "%s: %pM\n", __func__, mac);
40 spin_lock_bh(&priv->wmm.ra_list_spinlock);
41
42 skb_queue_walk_safe(&priv->tdls_txq, skb, tmp) {
43 if (!ether_addr_equal(mac, skb->data))
44 continue;
45
46 __skb_unlink(skb, &priv->tdls_txq);
47 tx_info = MWIFIEX_SKB_TXCB(skb);
48 tid = skb->priority;
49 tid_down = mwifiex_wmm_downgrade_tid(priv, tid);
50
51 if (mwifiex_is_tdls_link_setup(status)) {
52 ra_list = mwifiex_wmm_get_queue_raptr(priv, tid, mac);
53 ra_list->tdls_link = true;
54 tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT;
55 } else {
56 tid_list = &priv->wmm.tid_tbl_ptr[tid_down].ra_list;
57 ra_list = list_first_entry_or_null(tid_list,
58 struct mwifiex_ra_list_tbl, list);
59 tx_info->flags &= ~MWIFIEX_BUF_FLAG_TDLS_PKT;
60 }
61
62 if (!ra_list) {
63 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
64 continue;
65 }
66
67 skb_queue_tail(&ra_list->skb_head, skb);
68
69 ra_list->ba_pkt_count++;
70 ra_list->total_pkt_count++;
71
72 if (atomic_read(&priv->wmm.highest_queued_prio) <
73 tos_to_tid_inv[tid_down])
74 atomic_set(&priv->wmm.highest_queued_prio,
75 tos_to_tid_inv[tid_down]);
76
77 atomic_inc(&priv->wmm.tx_pkts_queued);
78 }
79
80 spin_unlock_bh(&priv->wmm.ra_list_spinlock);
81 return;
82 }
83
84 static void mwifiex_hold_tdls_packets(struct mwifiex_private *priv,
85 const u8 *mac)
86 {
87 struct mwifiex_ra_list_tbl *ra_list;
88 struct list_head *ra_list_head;
89 struct sk_buff *skb, *tmp;
90 int i;
91
92 mwifiex_dbg(priv->adapter, DATA, "%s: %pM\n", __func__, mac);
93 spin_lock_bh(&priv->wmm.ra_list_spinlock);
94
95 for (i = 0; i < MAX_NUM_TID; i++) {
96 if (!list_empty(&priv->wmm.tid_tbl_ptr[i].ra_list)) {
97 ra_list_head = &priv->wmm.tid_tbl_ptr[i].ra_list;
98 list_for_each_entry(ra_list, ra_list_head, list) {
99 skb_queue_walk_safe(&ra_list->skb_head, skb,
100 tmp) {
101 if (!ether_addr_equal(mac, skb->data))
102 continue;
103 __skb_unlink(skb, &ra_list->skb_head);
104 atomic_dec(&priv->wmm.tx_pkts_queued);
105 ra_list->total_pkt_count--;
106 skb_queue_tail(&priv->tdls_txq, skb);
107 }
108 }
109 }
110 }
111
112 spin_unlock_bh(&priv->wmm.ra_list_spinlock);
113 return;
114 }
115
116
117 static int
118 mwifiex_tdls_append_rates_ie(struct mwifiex_private *priv,
119 struct sk_buff *skb)
120 {
121 u8 rates[MWIFIEX_SUPPORTED_RATES], *pos;
122 u16 rates_size, supp_rates_size, ext_rates_size;
123
124 memset(rates, 0, sizeof(rates));
125 rates_size = mwifiex_get_supported_rates(priv, rates);
126
127 supp_rates_size = min_t(u16, rates_size, MWIFIEX_TDLS_SUPPORTED_RATES);
128
129 if (skb_tailroom(skb) < rates_size + 4) {
130 mwifiex_dbg(priv->adapter, ERROR,
131 "Insufficient space while adding rates\n");
132 return -ENOMEM;
133 }
134
135 pos = skb_put(skb, supp_rates_size + 2);
136 *pos++ = WLAN_EID_SUPP_RATES;
137 *pos++ = supp_rates_size;
138 memcpy(pos, rates, supp_rates_size);
139
140 if (rates_size > MWIFIEX_TDLS_SUPPORTED_RATES) {
141 ext_rates_size = rates_size - MWIFIEX_TDLS_SUPPORTED_RATES;
142 pos = skb_put(skb, ext_rates_size + 2);
143 *pos++ = WLAN_EID_EXT_SUPP_RATES;
144 *pos++ = ext_rates_size;
145 memcpy(pos, rates + MWIFIEX_TDLS_SUPPORTED_RATES,
146 ext_rates_size);
147 }
148
149 return 0;
150 }
151
152 static void mwifiex_tdls_add_aid(struct mwifiex_private *priv,
153 struct sk_buff *skb)
154 {
155 struct ieee_types_assoc_rsp *assoc_rsp;
156 u8 *pos;
157
158 assoc_rsp = (struct ieee_types_assoc_rsp *)&priv->assoc_rsp_buf;
159 pos = skb_put(skb, 4);
160 *pos++ = WLAN_EID_AID;
161 *pos++ = 2;
162 memcpy(pos, &assoc_rsp->a_id, sizeof(assoc_rsp->a_id));
163
164 return;
165 }
166
167 static int mwifiex_tdls_add_vht_capab(struct mwifiex_private *priv,
168 struct sk_buff *skb)
169 {
170 struct ieee80211_vht_cap vht_cap;
171 u8 *pos;
172
173 pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
174 *pos++ = WLAN_EID_VHT_CAPABILITY;
175 *pos++ = sizeof(struct ieee80211_vht_cap);
176
177 memset(&vht_cap, 0, sizeof(struct ieee80211_vht_cap));
178
179 mwifiex_fill_vht_cap_tlv(priv, &vht_cap, priv->curr_bss_params.band);
180 memcpy(pos, &vht_cap, sizeof(vht_cap));
181
182 return 0;
183 }
184
185 static int
186 mwifiex_tdls_add_ht_oper(struct mwifiex_private *priv, const u8 *mac,
187 u8 vht_enabled, struct sk_buff *skb)
188 {
189 struct ieee80211_ht_operation *ht_oper;
190 struct mwifiex_sta_node *sta_ptr;
191 struct mwifiex_bssdescriptor *bss_desc =
192 &priv->curr_bss_params.bss_descriptor;
193 u8 *pos;
194
195 sta_ptr = mwifiex_get_sta_entry(priv, mac);
196 if (unlikely(!sta_ptr)) {
197 mwifiex_dbg(priv->adapter, ERROR,
198 "TDLS peer station not found in list\n");
199 return -1;
200 }
201
202 if (!(le16_to_cpu(sta_ptr->tdls_cap.ht_capb.cap_info))) {
203 mwifiex_dbg(priv->adapter, WARN,
204 "TDLS peer doesn't support ht capabilities\n");
205 return 0;
206 }
207
208 pos = skb_put(skb, sizeof(struct ieee80211_ht_operation) + 2);
209 *pos++ = WLAN_EID_HT_OPERATION;
210 *pos++ = sizeof(struct ieee80211_ht_operation);
211 ht_oper = (void *)pos;
212
213 ht_oper->primary_chan = bss_desc->channel;
214
215
216 if (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) &&
217 bss_desc->bcn_ht_cap &&
218 ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param))
219 ht_oper->ht_param = bss_desc->bcn_ht_oper->ht_param;
220
221 if (vht_enabled) {
222 ht_oper->ht_param =
223 mwifiex_get_sec_chan_offset(bss_desc->channel);
224 ht_oper->ht_param |= BIT(2);
225 }
226
227 memcpy(&sta_ptr->tdls_cap.ht_oper, ht_oper,
228 sizeof(struct ieee80211_ht_operation));
229
230 return 0;
231 }
232
233 static int mwifiex_tdls_add_vht_oper(struct mwifiex_private *priv,
234 const u8 *mac, struct sk_buff *skb)
235 {
236 struct mwifiex_bssdescriptor *bss_desc;
237 struct ieee80211_vht_operation *vht_oper;
238 struct ieee80211_vht_cap *vht_cap, *ap_vht_cap = NULL;
239 struct mwifiex_sta_node *sta_ptr;
240 struct mwifiex_adapter *adapter = priv->adapter;
241 u8 supp_chwd_set, peer_supp_chwd_set;
242 u8 *pos, ap_supp_chwd_set, chan_bw;
243 u16 mcs_map_user, mcs_map_resp, mcs_map_result;
244 u16 mcs_user, mcs_resp, nss;
245 u32 usr_vht_cap_info;
246
247 bss_desc = &priv->curr_bss_params.bss_descriptor;
248
249 sta_ptr = mwifiex_get_sta_entry(priv, mac);
250 if (unlikely(!sta_ptr)) {
251 mwifiex_dbg(adapter, ERROR,
252 "TDLS peer station not found in list\n");
253 return -1;
254 }
255
256 if (!(le32_to_cpu(sta_ptr->tdls_cap.vhtcap.vht_cap_info))) {
257 mwifiex_dbg(adapter, WARN,
258 "TDLS peer doesn't support vht capabilities\n");
259 return 0;
260 }
261
262 if (!mwifiex_is_bss_in_11ac_mode(priv)) {
263 if (sta_ptr->tdls_cap.extcap.ext_capab[7] &
264 WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) {
265 mwifiex_dbg(adapter, WARN,
266 "TDLS peer doesn't support wider bandwidth\n");
267 return 0;
268 }
269 } else {
270 ap_vht_cap = bss_desc->bcn_vht_cap;
271 }
272
273 pos = skb_put(skb, sizeof(struct ieee80211_vht_operation) + 2);
274 *pos++ = WLAN_EID_VHT_OPERATION;
275 *pos++ = sizeof(struct ieee80211_vht_operation);
276 vht_oper = (struct ieee80211_vht_operation *)pos;
277
278 if (bss_desc->bss_band & BAND_A)
279 usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
280 else
281 usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
282
283
284 vht_cap = &sta_ptr->tdls_cap.vhtcap;
285 supp_chwd_set = GET_VHTCAP_CHWDSET(usr_vht_cap_info);
286 peer_supp_chwd_set =
287 GET_VHTCAP_CHWDSET(le32_to_cpu(vht_cap->vht_cap_info));
288 supp_chwd_set = min_t(u8, supp_chwd_set, peer_supp_chwd_set);
289
290
291
292 if (ap_vht_cap && sta_ptr->tdls_cap.extcap.ext_capab[7] &
293 WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) {
294 ap_supp_chwd_set =
295 GET_VHTCAP_CHWDSET(le32_to_cpu(ap_vht_cap->vht_cap_info));
296 supp_chwd_set = min_t(u8, supp_chwd_set, ap_supp_chwd_set);
297 }
298
299 switch (supp_chwd_set) {
300 case IEEE80211_VHT_CHANWIDTH_80MHZ:
301 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
302 break;
303 case IEEE80211_VHT_CHANWIDTH_160MHZ:
304 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_160MHZ;
305 break;
306 case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
307 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
308 break;
309 default:
310 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT;
311 break;
312 }
313
314 mcs_map_user = GET_DEVRXMCSMAP(adapter->usr_dot_11ac_mcs_support);
315 mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.rx_mcs_map);
316 mcs_map_result = 0;
317
318 for (nss = 1; nss <= 8; nss++) {
319 mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
320 mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
321
322 if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
323 (mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
324 SET_VHTNSSMCS(mcs_map_result, nss,
325 IEEE80211_VHT_MCS_NOT_SUPPORTED);
326 else
327 SET_VHTNSSMCS(mcs_map_result, nss,
328 min_t(u16, mcs_user, mcs_resp));
329 }
330
331 vht_oper->basic_mcs_set = cpu_to_le16(mcs_map_result);
332
333 switch (vht_oper->chan_width) {
334 case IEEE80211_VHT_CHANWIDTH_80MHZ:
335 chan_bw = IEEE80211_VHT_CHANWIDTH_80MHZ;
336 break;
337 case IEEE80211_VHT_CHANWIDTH_160MHZ:
338 chan_bw = IEEE80211_VHT_CHANWIDTH_160MHZ;
339 break;
340 case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
341 chan_bw = IEEE80211_VHT_CHANWIDTH_80MHZ;
342 break;
343 default:
344 chan_bw = IEEE80211_VHT_CHANWIDTH_USE_HT;
345 break;
346 }
347 vht_oper->center_freq_seg0_idx =
348 mwifiex_get_center_freq_index(priv, BAND_AAC,
349 bss_desc->channel,
350 chan_bw);
351
352 return 0;
353 }
354
355 static void mwifiex_tdls_add_ext_capab(struct mwifiex_private *priv,
356 struct sk_buff *skb)
357 {
358 struct ieee_types_extcap *extcap;
359
360 extcap = skb_put(skb, sizeof(struct ieee_types_extcap));
361 extcap->ieee_hdr.element_id = WLAN_EID_EXT_CAPABILITY;
362 extcap->ieee_hdr.len = 8;
363 memset(extcap->ext_capab, 0, 8);
364 extcap->ext_capab[4] |= WLAN_EXT_CAPA5_TDLS_ENABLED;
365 extcap->ext_capab[3] |= WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH;
366
367 if (priv->adapter->is_hw_11ac_capable)
368 extcap->ext_capab[7] |= WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED;
369 }
370
371 static void mwifiex_tdls_add_qos_capab(struct sk_buff *skb)
372 {
373 u8 *pos = skb_put(skb, 3);
374
375 *pos++ = WLAN_EID_QOS_CAPA;
376 *pos++ = 1;
377 *pos++ = MWIFIEX_TDLS_DEF_QOS_CAPAB;
378 }
379
380 static void
381 mwifiex_tdls_add_wmm_param_ie(struct mwifiex_private *priv, struct sk_buff *skb)
382 {
383 struct ieee80211_wmm_param_ie *wmm;
384 u8 ac_vi[] = {0x42, 0x43, 0x5e, 0x00};
385 u8 ac_vo[] = {0x62, 0x32, 0x2f, 0x00};
386 u8 ac_be[] = {0x03, 0xa4, 0x00, 0x00};
387 u8 ac_bk[] = {0x27, 0xa4, 0x00, 0x00};
388
389 wmm = skb_put_zero(skb, sizeof(*wmm));
390
391 wmm->element_id = WLAN_EID_VENDOR_SPECIFIC;
392 wmm->len = sizeof(*wmm) - 2;
393 wmm->oui[0] = 0x00;
394 wmm->oui[1] = 0x50;
395 wmm->oui[2] = 0xf2;
396 wmm->oui_type = 2;
397 wmm->oui_subtype = 1;
398 wmm->version = 1;
399 wmm->qos_info = 0;
400
401
402 memcpy(&wmm->ac[0], ac_be, sizeof(ac_be));
403 memcpy(&wmm->ac[1], ac_bk, sizeof(ac_bk));
404 memcpy(&wmm->ac[2], ac_vi, sizeof(ac_vi));
405 memcpy(&wmm->ac[3], ac_vo, sizeof(ac_vo));
406 }
407
408 static void
409 mwifiex_add_wmm_info_ie(struct mwifiex_private *priv, struct sk_buff *skb,
410 u8 qosinfo)
411 {
412 u8 *buf;
413
414 buf = skb_put(skb,
415 MWIFIEX_TDLS_WMM_INFO_SIZE + sizeof(struct ieee_types_header));
416
417 *buf++ = WLAN_EID_VENDOR_SPECIFIC;
418 *buf++ = 7;
419 *buf++ = 0x00;
420 *buf++ = 0x50;
421 *buf++ = 0xf2;
422 *buf++ = 2;
423 *buf++ = 0;
424 *buf++ = 1;
425 *buf++ = qosinfo;
426 }
427
428 static void mwifiex_tdls_add_bss_co_2040(struct sk_buff *skb)
429 {
430 struct ieee_types_bss_co_2040 *bssco;
431
432 bssco = skb_put(skb, sizeof(struct ieee_types_bss_co_2040));
433 bssco->ieee_hdr.element_id = WLAN_EID_BSS_COEX_2040;
434 bssco->ieee_hdr.len = sizeof(struct ieee_types_bss_co_2040) -
435 sizeof(struct ieee_types_header);
436 bssco->bss_2040co = 0x01;
437 }
438
439 static void mwifiex_tdls_add_supported_chan(struct sk_buff *skb)
440 {
441 struct ieee_types_generic *supp_chan;
442 u8 chan_supp[] = {1, 11};
443
444 supp_chan = skb_put(skb,
445 (sizeof(struct ieee_types_header) + sizeof(chan_supp)));
446 supp_chan->ieee_hdr.element_id = WLAN_EID_SUPPORTED_CHANNELS;
447 supp_chan->ieee_hdr.len = sizeof(chan_supp);
448 memcpy(supp_chan->data, chan_supp, sizeof(chan_supp));
449 }
450
451 static void mwifiex_tdls_add_oper_class(struct sk_buff *skb)
452 {
453 struct ieee_types_generic *reg_class;
454 u8 rc_list[] = {1,
455 1, 2, 3, 4, 12, 22, 23, 24, 25, 27, 28, 29, 30, 32, 33};
456 reg_class = skb_put(skb,
457 (sizeof(struct ieee_types_header) + sizeof(rc_list)));
458 reg_class->ieee_hdr.element_id = WLAN_EID_SUPPORTED_REGULATORY_CLASSES;
459 reg_class->ieee_hdr.len = sizeof(rc_list);
460 memcpy(reg_class->data, rc_list, sizeof(rc_list));
461 }
462
463 static int mwifiex_prep_tdls_encap_data(struct mwifiex_private *priv,
464 const u8 *peer, u8 action_code,
465 u8 dialog_token,
466 u16 status_code, struct sk_buff *skb)
467 {
468 struct ieee80211_tdls_data *tf;
469 int ret;
470 u16 capab;
471 struct ieee80211_ht_cap *ht_cap;
472 u8 radio, *pos;
473
474 capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
475
476 tf = skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
477 memcpy(tf->da, peer, ETH_ALEN);
478 memcpy(tf->sa, priv->curr_addr, ETH_ALEN);
479 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
480 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
481
482 switch (action_code) {
483 case WLAN_TDLS_SETUP_REQUEST:
484 tf->category = WLAN_CATEGORY_TDLS;
485 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
486 skb_put(skb, sizeof(tf->u.setup_req));
487 tf->u.setup_req.dialog_token = dialog_token;
488 tf->u.setup_req.capability = cpu_to_le16(capab);
489 ret = mwifiex_tdls_append_rates_ie(priv, skb);
490 if (ret) {
491 dev_kfree_skb_any(skb);
492 return ret;
493 }
494
495 pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
496 *pos++ = WLAN_EID_HT_CAPABILITY;
497 *pos++ = sizeof(struct ieee80211_ht_cap);
498 ht_cap = (void *)pos;
499 radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
500 ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
501 if (ret) {
502 dev_kfree_skb_any(skb);
503 return ret;
504 }
505
506 if (priv->adapter->is_hw_11ac_capable) {
507 ret = mwifiex_tdls_add_vht_capab(priv, skb);
508 if (ret) {
509 dev_kfree_skb_any(skb);
510 return ret;
511 }
512 mwifiex_tdls_add_aid(priv, skb);
513 }
514
515 mwifiex_tdls_add_ext_capab(priv, skb);
516 mwifiex_tdls_add_bss_co_2040(skb);
517 mwifiex_tdls_add_supported_chan(skb);
518 mwifiex_tdls_add_oper_class(skb);
519 mwifiex_add_wmm_info_ie(priv, skb, 0);
520 break;
521
522 case WLAN_TDLS_SETUP_RESPONSE:
523 tf->category = WLAN_CATEGORY_TDLS;
524 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
525 skb_put(skb, sizeof(tf->u.setup_resp));
526 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
527 tf->u.setup_resp.dialog_token = dialog_token;
528 tf->u.setup_resp.capability = cpu_to_le16(capab);
529 ret = mwifiex_tdls_append_rates_ie(priv, skb);
530 if (ret) {
531 dev_kfree_skb_any(skb);
532 return ret;
533 }
534
535 pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
536 *pos++ = WLAN_EID_HT_CAPABILITY;
537 *pos++ = sizeof(struct ieee80211_ht_cap);
538 ht_cap = (void *)pos;
539 radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
540 ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
541 if (ret) {
542 dev_kfree_skb_any(skb);
543 return ret;
544 }
545
546 if (priv->adapter->is_hw_11ac_capable) {
547 ret = mwifiex_tdls_add_vht_capab(priv, skb);
548 if (ret) {
549 dev_kfree_skb_any(skb);
550 return ret;
551 }
552 mwifiex_tdls_add_aid(priv, skb);
553 }
554
555 mwifiex_tdls_add_ext_capab(priv, skb);
556 mwifiex_tdls_add_bss_co_2040(skb);
557 mwifiex_tdls_add_supported_chan(skb);
558 mwifiex_tdls_add_oper_class(skb);
559 mwifiex_add_wmm_info_ie(priv, skb, 0);
560 break;
561
562 case WLAN_TDLS_SETUP_CONFIRM:
563 tf->category = WLAN_CATEGORY_TDLS;
564 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
565 skb_put(skb, sizeof(tf->u.setup_cfm));
566 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
567 tf->u.setup_cfm.dialog_token = dialog_token;
568
569 mwifiex_tdls_add_wmm_param_ie(priv, skb);
570 if (priv->adapter->is_hw_11ac_capable) {
571 ret = mwifiex_tdls_add_vht_oper(priv, peer, skb);
572 if (ret) {
573 dev_kfree_skb_any(skb);
574 return ret;
575 }
576 ret = mwifiex_tdls_add_ht_oper(priv, peer, 1, skb);
577 if (ret) {
578 dev_kfree_skb_any(skb);
579 return ret;
580 }
581 } else {
582 ret = mwifiex_tdls_add_ht_oper(priv, peer, 0, skb);
583 if (ret) {
584 dev_kfree_skb_any(skb);
585 return ret;
586 }
587 }
588 break;
589
590 case WLAN_TDLS_TEARDOWN:
591 tf->category = WLAN_CATEGORY_TDLS;
592 tf->action_code = WLAN_TDLS_TEARDOWN;
593 skb_put(skb, sizeof(tf->u.teardown));
594 tf->u.teardown.reason_code = cpu_to_le16(status_code);
595 break;
596
597 case WLAN_TDLS_DISCOVERY_REQUEST:
598 tf->category = WLAN_CATEGORY_TDLS;
599 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
600 skb_put(skb, sizeof(tf->u.discover_req));
601 tf->u.discover_req.dialog_token = dialog_token;
602 break;
603 default:
604 mwifiex_dbg(priv->adapter, ERROR, "Unknown TDLS frame type.\n");
605 return -EINVAL;
606 }
607
608 return 0;
609 }
610
611 static void
612 mwifiex_tdls_add_link_ie(struct sk_buff *skb, const u8 *src_addr,
613 const u8 *peer, const u8 *bssid)
614 {
615 struct ieee80211_tdls_lnkie *lnkid;
616
617 lnkid = skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
618 lnkid->ie_type = WLAN_EID_LINK_ID;
619 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) -
620 sizeof(struct ieee_types_header);
621
622 memcpy(lnkid->bssid, bssid, ETH_ALEN);
623 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
624 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
625 }
626
627 int mwifiex_send_tdls_data_frame(struct mwifiex_private *priv, const u8 *peer,
628 u8 action_code, u8 dialog_token,
629 u16 status_code, const u8 *extra_ies,
630 size_t extra_ies_len)
631 {
632 struct sk_buff *skb;
633 struct mwifiex_txinfo *tx_info;
634 int ret;
635 u16 skb_len;
636
637 skb_len = MWIFIEX_MIN_DATA_HEADER_LEN +
638 max(sizeof(struct ieee80211_mgmt),
639 sizeof(struct ieee80211_tdls_data)) +
640 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
641 MWIFIEX_SUPPORTED_RATES +
642 3 +
643 sizeof(struct ieee_types_extcap) +
644 sizeof(struct ieee80211_ht_cap) +
645 sizeof(struct ieee_types_bss_co_2040) +
646 sizeof(struct ieee80211_ht_operation) +
647 sizeof(struct ieee80211_tdls_lnkie) +
648 (2 * (sizeof(struct ieee_types_header))) +
649 MWIFIEX_SUPPORTED_CHANNELS +
650 MWIFIEX_OPERATING_CLASSES +
651 sizeof(struct ieee80211_wmm_param_ie) +
652 extra_ies_len;
653
654 if (priv->adapter->is_hw_11ac_capable)
655 skb_len += sizeof(struct ieee_types_vht_cap) +
656 sizeof(struct ieee_types_vht_oper) +
657 sizeof(struct ieee_types_aid);
658
659 skb = dev_alloc_skb(skb_len);
660 if (!skb) {
661 mwifiex_dbg(priv->adapter, ERROR,
662 "allocate skb failed for management frame\n");
663 return -ENOMEM;
664 }
665 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
666
667 switch (action_code) {
668 case WLAN_TDLS_SETUP_REQUEST:
669 case WLAN_TDLS_SETUP_CONFIRM:
670 case WLAN_TDLS_TEARDOWN:
671 case WLAN_TDLS_DISCOVERY_REQUEST:
672 ret = mwifiex_prep_tdls_encap_data(priv, peer, action_code,
673 dialog_token, status_code,
674 skb);
675 if (ret) {
676 dev_kfree_skb_any(skb);
677 return ret;
678 }
679 if (extra_ies_len)
680 skb_put_data(skb, extra_ies, extra_ies_len);
681 mwifiex_tdls_add_link_ie(skb, priv->curr_addr, peer,
682 priv->cfg_bssid);
683 break;
684 case WLAN_TDLS_SETUP_RESPONSE:
685 ret = mwifiex_prep_tdls_encap_data(priv, peer, action_code,
686 dialog_token, status_code,
687 skb);
688 if (ret) {
689 dev_kfree_skb_any(skb);
690 return ret;
691 }
692 if (extra_ies_len)
693 skb_put_data(skb, extra_ies, extra_ies_len);
694 mwifiex_tdls_add_link_ie(skb, peer, priv->curr_addr,
695 priv->cfg_bssid);
696 break;
697 }
698
699 switch (action_code) {
700 case WLAN_TDLS_SETUP_REQUEST:
701 case WLAN_TDLS_SETUP_RESPONSE:
702 skb->priority = MWIFIEX_PRIO_BK;
703 break;
704 default:
705 skb->priority = MWIFIEX_PRIO_VI;
706 break;
707 }
708
709 tx_info = MWIFIEX_SKB_TXCB(skb);
710 memset(tx_info, 0, sizeof(*tx_info));
711 tx_info->bss_num = priv->bss_num;
712 tx_info->bss_type = priv->bss_type;
713
714 __net_timestamp(skb);
715 mwifiex_queue_tx_pkt(priv, skb);
716
717
718
719
720 if (action_code == WLAN_TDLS_SETUP_CONFIRM ||
721 action_code == WLAN_TDLS_TEARDOWN)
722 msleep_interruptible(10);
723
724 return 0;
725 }
726
727 static int
728 mwifiex_construct_tdls_action_frame(struct mwifiex_private *priv,
729 const u8 *peer,
730 u8 action_code, u8 dialog_token,
731 u16 status_code, struct sk_buff *skb)
732 {
733 struct ieee80211_mgmt *mgmt;
734 int ret;
735 u16 capab;
736 struct ieee80211_ht_cap *ht_cap;
737 u8 radio, *pos;
738
739 capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
740
741 mgmt = skb_put(skb, offsetof(struct ieee80211_mgmt, u));
742
743 memset(mgmt, 0, 24);
744 memcpy(mgmt->da, peer, ETH_ALEN);
745 memcpy(mgmt->sa, priv->curr_addr, ETH_ALEN);
746 memcpy(mgmt->bssid, priv->cfg_bssid, ETH_ALEN);
747 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
748 IEEE80211_STYPE_ACTION);
749
750
751 pos = skb_put(skb, ETH_ALEN);
752
753 switch (action_code) {
754 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
755 skb_put(skb, sizeof(mgmt->u.action.u.tdls_discover_resp) + 1);
756 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
757 mgmt->u.action.u.tdls_discover_resp.action_code =
758 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
759 mgmt->u.action.u.tdls_discover_resp.dialog_token =
760 dialog_token;
761 mgmt->u.action.u.tdls_discover_resp.capability =
762 cpu_to_le16(capab);
763
764 memmove(pos + ETH_ALEN, &mgmt->u.action.category,
765 sizeof(mgmt->u.action.u.tdls_discover_resp));
766
767 eth_broadcast_addr(pos);
768
769 ret = mwifiex_tdls_append_rates_ie(priv, skb);
770 if (ret) {
771 dev_kfree_skb_any(skb);
772 return ret;
773 }
774
775 pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
776 *pos++ = WLAN_EID_HT_CAPABILITY;
777 *pos++ = sizeof(struct ieee80211_ht_cap);
778 ht_cap = (void *)pos;
779 radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
780 ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
781 if (ret) {
782 dev_kfree_skb_any(skb);
783 return ret;
784 }
785
786 if (priv->adapter->is_hw_11ac_capable) {
787 ret = mwifiex_tdls_add_vht_capab(priv, skb);
788 if (ret) {
789 dev_kfree_skb_any(skb);
790 return ret;
791 }
792 mwifiex_tdls_add_aid(priv, skb);
793 }
794
795 mwifiex_tdls_add_ext_capab(priv, skb);
796 mwifiex_tdls_add_bss_co_2040(skb);
797 mwifiex_tdls_add_supported_chan(skb);
798 mwifiex_tdls_add_qos_capab(skb);
799 mwifiex_tdls_add_oper_class(skb);
800 break;
801 default:
802 mwifiex_dbg(priv->adapter, ERROR, "Unknown TDLS action frame type\n");
803 return -EINVAL;
804 }
805
806 return 0;
807 }
808
809 int mwifiex_send_tdls_action_frame(struct mwifiex_private *priv, const u8 *peer,
810 u8 action_code, u8 dialog_token,
811 u16 status_code, const u8 *extra_ies,
812 size_t extra_ies_len)
813 {
814 struct sk_buff *skb;
815 struct mwifiex_txinfo *tx_info;
816 u8 *pos;
817 u32 pkt_type, tx_control;
818 u16 pkt_len, skb_len;
819
820 skb_len = MWIFIEX_MIN_DATA_HEADER_LEN +
821 max(sizeof(struct ieee80211_mgmt),
822 sizeof(struct ieee80211_tdls_data)) +
823 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
824 MWIFIEX_SUPPORTED_RATES +
825 sizeof(struct ieee_types_extcap) +
826 sizeof(struct ieee80211_ht_cap) +
827 sizeof(struct ieee_types_bss_co_2040) +
828 sizeof(struct ieee80211_ht_operation) +
829 sizeof(struct ieee80211_tdls_lnkie) +
830 extra_ies_len +
831 3 +
832 ETH_ALEN;
833
834 if (priv->adapter->is_hw_11ac_capable)
835 skb_len += sizeof(struct ieee_types_vht_cap) +
836 sizeof(struct ieee_types_vht_oper) +
837 sizeof(struct ieee_types_aid);
838
839 skb = dev_alloc_skb(skb_len);
840 if (!skb) {
841 mwifiex_dbg(priv->adapter, ERROR,
842 "allocate skb failed for management frame\n");
843 return -ENOMEM;
844 }
845
846 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
847
848 pkt_type = PKT_TYPE_MGMT;
849 tx_control = 0;
850 pos = skb_put_zero(skb,
851 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
852 memcpy(pos, &pkt_type, sizeof(pkt_type));
853 memcpy(pos + sizeof(pkt_type), &tx_control, sizeof(tx_control));
854
855 if (mwifiex_construct_tdls_action_frame(priv, peer, action_code,
856 dialog_token, status_code,
857 skb)) {
858 dev_kfree_skb_any(skb);
859 return -EINVAL;
860 }
861
862 if (extra_ies_len)
863 skb_put_data(skb, extra_ies, extra_ies_len);
864
865
866
867 mwifiex_tdls_add_link_ie(skb, peer, priv->curr_addr,
868 priv->cfg_bssid);
869
870 skb->priority = MWIFIEX_PRIO_VI;
871
872 tx_info = MWIFIEX_SKB_TXCB(skb);
873 memset(tx_info, 0, sizeof(*tx_info));
874 tx_info->bss_num = priv->bss_num;
875 tx_info->bss_type = priv->bss_type;
876 tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT;
877
878 pkt_len = skb->len - MWIFIEX_MGMT_FRAME_HEADER_SIZE - sizeof(pkt_len);
879 memcpy(skb->data + MWIFIEX_MGMT_FRAME_HEADER_SIZE, &pkt_len,
880 sizeof(pkt_len));
881 __net_timestamp(skb);
882 mwifiex_queue_tx_pkt(priv, skb);
883
884 return 0;
885 }
886
887
888
889
890 void mwifiex_process_tdls_action_frame(struct mwifiex_private *priv,
891 u8 *buf, int len)
892 {
893 struct mwifiex_sta_node *sta_ptr;
894 u8 *peer, *pos, *end;
895 u8 i, action, basic;
896 u16 cap = 0;
897 int ies_len = 0;
898
899 if (len < (sizeof(struct ethhdr) + 3))
900 return;
901 if (*(buf + sizeof(struct ethhdr)) != WLAN_TDLS_SNAP_RFTYPE)
902 return;
903 if (*(buf + sizeof(struct ethhdr) + 1) != WLAN_CATEGORY_TDLS)
904 return;
905
906 peer = buf + ETH_ALEN;
907 action = *(buf + sizeof(struct ethhdr) + 2);
908 mwifiex_dbg(priv->adapter, DATA,
909 "rx:tdls action: peer=%pM, action=%d\n", peer, action);
910
911 switch (action) {
912 case WLAN_TDLS_SETUP_REQUEST:
913 if (len < (sizeof(struct ethhdr) + TDLS_REQ_FIX_LEN))
914 return;
915
916 pos = buf + sizeof(struct ethhdr) + 4;
917
918 cap = get_unaligned_le16(pos);
919 ies_len = len - sizeof(struct ethhdr) - TDLS_REQ_FIX_LEN;
920 pos += 2;
921 break;
922
923 case WLAN_TDLS_SETUP_RESPONSE:
924 if (len < (sizeof(struct ethhdr) + TDLS_RESP_FIX_LEN))
925 return;
926
927 pos = buf + sizeof(struct ethhdr) + 6;
928 cap = get_unaligned_le16(pos);
929 ies_len = len - sizeof(struct ethhdr) - TDLS_RESP_FIX_LEN;
930 pos += 2;
931 break;
932
933 case WLAN_TDLS_SETUP_CONFIRM:
934 if (len < (sizeof(struct ethhdr) + TDLS_CONFIRM_FIX_LEN))
935 return;
936 pos = buf + sizeof(struct ethhdr) + TDLS_CONFIRM_FIX_LEN;
937 ies_len = len - sizeof(struct ethhdr) - TDLS_CONFIRM_FIX_LEN;
938 break;
939 default:
940 mwifiex_dbg(priv->adapter, ERROR, "Unknown TDLS frame type.\n");
941 return;
942 }
943
944 sta_ptr = mwifiex_add_sta_entry(priv, peer);
945 if (!sta_ptr)
946 return;
947
948 sta_ptr->tdls_cap.capab = cpu_to_le16(cap);
949
950 for (end = pos + ies_len; pos + 1 < end; pos += 2 + pos[1]) {
951 u8 ie_len = pos[1];
952
953 if (pos + 2 + ie_len > end)
954 break;
955
956 switch (*pos) {
957 case WLAN_EID_SUPP_RATES:
958 if (ie_len > sizeof(sta_ptr->tdls_cap.rates))
959 return;
960 sta_ptr->tdls_cap.rates_len = ie_len;
961 for (i = 0; i < ie_len; i++)
962 sta_ptr->tdls_cap.rates[i] = pos[i + 2];
963 break;
964
965 case WLAN_EID_EXT_SUPP_RATES:
966 if (ie_len > sizeof(sta_ptr->tdls_cap.rates))
967 return;
968 basic = sta_ptr->tdls_cap.rates_len;
969 if (ie_len > sizeof(sta_ptr->tdls_cap.rates) - basic)
970 return;
971 for (i = 0; i < ie_len; i++)
972 sta_ptr->tdls_cap.rates[basic + i] = pos[i + 2];
973 sta_ptr->tdls_cap.rates_len += ie_len;
974 break;
975 case WLAN_EID_HT_CAPABILITY:
976 if (ie_len != sizeof(struct ieee80211_ht_cap))
977 return;
978
979 memcpy((u8 *)&sta_ptr->tdls_cap.ht_capb, pos + 2,
980 sizeof(struct ieee80211_ht_cap));
981 sta_ptr->is_11n_enabled = 1;
982 break;
983 case WLAN_EID_HT_OPERATION:
984 if (ie_len != sizeof(struct ieee80211_ht_operation))
985 return;
986
987 memcpy(&sta_ptr->tdls_cap.ht_oper, pos + 2,
988 sizeof(struct ieee80211_ht_operation));
989 break;
990 case WLAN_EID_BSS_COEX_2040:
991 if (ie_len != sizeof(pos[2]))
992 return;
993 sta_ptr->tdls_cap.coex_2040 = pos[2];
994 break;
995 case WLAN_EID_EXT_CAPABILITY:
996 if (ie_len < sizeof(struct ieee_types_header))
997 return;
998 if (ie_len > 8)
999 return;
1000 memcpy((u8 *)&sta_ptr->tdls_cap.extcap, pos,
1001 sizeof(struct ieee_types_header) +
1002 min_t(u8, ie_len, 8));
1003 break;
1004 case WLAN_EID_RSN:
1005 if (ie_len < sizeof(struct ieee_types_header))
1006 return;
1007 if (ie_len > IEEE_MAX_IE_SIZE -
1008 sizeof(struct ieee_types_header))
1009 return;
1010 memcpy((u8 *)&sta_ptr->tdls_cap.rsn_ie, pos,
1011 sizeof(struct ieee_types_header) +
1012 min_t(u8, ie_len, IEEE_MAX_IE_SIZE -
1013 sizeof(struct ieee_types_header)));
1014 break;
1015 case WLAN_EID_QOS_CAPA:
1016 if (ie_len != sizeof(pos[2]))
1017 return;
1018 sta_ptr->tdls_cap.qos_info = pos[2];
1019 break;
1020 case WLAN_EID_VHT_OPERATION:
1021 if (priv->adapter->is_hw_11ac_capable) {
1022 if (ie_len !=
1023 sizeof(struct ieee80211_vht_operation))
1024 return;
1025
1026 memcpy(&sta_ptr->tdls_cap.vhtoper, pos + 2,
1027 sizeof(struct ieee80211_vht_operation));
1028 }
1029 break;
1030 case WLAN_EID_VHT_CAPABILITY:
1031 if (priv->adapter->is_hw_11ac_capable) {
1032 if (ie_len != sizeof(struct ieee80211_vht_cap))
1033 return;
1034
1035 memcpy((u8 *)&sta_ptr->tdls_cap.vhtcap, pos + 2,
1036 sizeof(struct ieee80211_vht_cap));
1037 sta_ptr->is_11ac_enabled = 1;
1038 }
1039 break;
1040 case WLAN_EID_AID:
1041 if (priv->adapter->is_hw_11ac_capable) {
1042 if (ie_len != sizeof(u16))
1043 return;
1044 sta_ptr->tdls_cap.aid =
1045 get_unaligned_le16((pos + 2));
1046 }
1047 break;
1048 default:
1049 break;
1050 }
1051 }
1052
1053 return;
1054 }
1055
1056 static int
1057 mwifiex_tdls_process_config_link(struct mwifiex_private *priv, const u8 *peer)
1058 {
1059 struct mwifiex_sta_node *sta_ptr;
1060 struct mwifiex_ds_tdls_oper tdls_oper;
1061
1062 memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
1063 sta_ptr = mwifiex_get_sta_entry(priv, peer);
1064
1065 if (!sta_ptr || sta_ptr->tdls_status == TDLS_SETUP_FAILURE) {
1066 mwifiex_dbg(priv->adapter, ERROR,
1067 "link absent for peer %pM; cannot config\n", peer);
1068 return -EINVAL;
1069 }
1070
1071 memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
1072 tdls_oper.tdls_action = MWIFIEX_TDLS_CONFIG_LINK;
1073 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
1074 HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
1075 }
1076
1077 static int
1078 mwifiex_tdls_process_create_link(struct mwifiex_private *priv, const u8 *peer)
1079 {
1080 struct mwifiex_sta_node *sta_ptr;
1081 struct mwifiex_ds_tdls_oper tdls_oper;
1082
1083 memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
1084 sta_ptr = mwifiex_get_sta_entry(priv, peer);
1085
1086 if (sta_ptr && sta_ptr->tdls_status == TDLS_SETUP_INPROGRESS) {
1087 mwifiex_dbg(priv->adapter, WARN,
1088 "Setup already in progress for peer %pM\n", peer);
1089 return 0;
1090 }
1091
1092 sta_ptr = mwifiex_add_sta_entry(priv, peer);
1093 if (!sta_ptr)
1094 return -ENOMEM;
1095
1096 sta_ptr->tdls_status = TDLS_SETUP_INPROGRESS;
1097 mwifiex_hold_tdls_packets(priv, peer);
1098 memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
1099 tdls_oper.tdls_action = MWIFIEX_TDLS_CREATE_LINK;
1100 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
1101 HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
1102 }
1103
1104 static int
1105 mwifiex_tdls_process_disable_link(struct mwifiex_private *priv, const u8 *peer)
1106 {
1107 struct mwifiex_sta_node *sta_ptr;
1108 struct mwifiex_ds_tdls_oper tdls_oper;
1109
1110 memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
1111 sta_ptr = mwifiex_get_sta_entry(priv, peer);
1112
1113 if (sta_ptr) {
1114 if (sta_ptr->is_11n_enabled) {
1115 mwifiex_11n_cleanup_reorder_tbl(priv);
1116 spin_lock_bh(&priv->wmm.ra_list_spinlock);
1117 mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
1118 spin_unlock_bh(&priv->wmm.ra_list_spinlock);
1119 }
1120 mwifiex_del_sta_entry(priv, peer);
1121 }
1122
1123 mwifiex_restore_tdls_packets(priv, peer, TDLS_LINK_TEARDOWN);
1124 mwifiex_auto_tdls_update_peer_status(priv, peer, TDLS_NOT_SETUP);
1125 memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
1126 tdls_oper.tdls_action = MWIFIEX_TDLS_DISABLE_LINK;
1127 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
1128 HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
1129 }
1130
1131 static int
1132 mwifiex_tdls_process_enable_link(struct mwifiex_private *priv, const u8 *peer)
1133 {
1134 struct mwifiex_sta_node *sta_ptr;
1135 struct ieee80211_mcs_info mcs;
1136 int i;
1137
1138 sta_ptr = mwifiex_get_sta_entry(priv, peer);
1139
1140 if (sta_ptr && (sta_ptr->tdls_status != TDLS_SETUP_FAILURE)) {
1141 mwifiex_dbg(priv->adapter, MSG,
1142 "tdls: enable link %pM success\n", peer);
1143
1144 sta_ptr->tdls_status = TDLS_SETUP_COMPLETE;
1145
1146 mcs = sta_ptr->tdls_cap.ht_capb.mcs;
1147 if (mcs.rx_mask[0] != 0xff)
1148 sta_ptr->is_11n_enabled = true;
1149 if (sta_ptr->is_11n_enabled) {
1150 if (le16_to_cpu(sta_ptr->tdls_cap.ht_capb.cap_info) &
1151 IEEE80211_HT_CAP_MAX_AMSDU)
1152 sta_ptr->max_amsdu =
1153 MWIFIEX_TX_DATA_BUF_SIZE_8K;
1154 else
1155 sta_ptr->max_amsdu =
1156 MWIFIEX_TX_DATA_BUF_SIZE_4K;
1157
1158 for (i = 0; i < MAX_NUM_TID; i++)
1159 sta_ptr->ampdu_sta[i] =
1160 priv->aggr_prio_tbl[i].ampdu_user;
1161 } else {
1162 for (i = 0; i < MAX_NUM_TID; i++)
1163 sta_ptr->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
1164 }
1165 if (sta_ptr->tdls_cap.extcap.ext_capab[3] &
1166 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) {
1167 mwifiex_config_tdls_enable(priv);
1168 mwifiex_config_tdls_cs_params(priv);
1169 }
1170
1171 memset(sta_ptr->rx_seq, 0xff, sizeof(sta_ptr->rx_seq));
1172 mwifiex_restore_tdls_packets(priv, peer, TDLS_SETUP_COMPLETE);
1173 mwifiex_auto_tdls_update_peer_status(priv, peer,
1174 TDLS_SETUP_COMPLETE);
1175 } else {
1176 mwifiex_dbg(priv->adapter, ERROR,
1177 "tdls: enable link %pM failed\n", peer);
1178 if (sta_ptr) {
1179 mwifiex_11n_cleanup_reorder_tbl(priv);
1180 spin_lock_bh(&priv->wmm.ra_list_spinlock);
1181 mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
1182 spin_unlock_bh(&priv->wmm.ra_list_spinlock);
1183 mwifiex_del_sta_entry(priv, peer);
1184 }
1185 mwifiex_restore_tdls_packets(priv, peer, TDLS_LINK_TEARDOWN);
1186 mwifiex_auto_tdls_update_peer_status(priv, peer,
1187 TDLS_NOT_SETUP);
1188
1189 return -1;
1190 }
1191
1192 return 0;
1193 }
1194
1195 int mwifiex_tdls_oper(struct mwifiex_private *priv, const u8 *peer, u8 action)
1196 {
1197 switch (action) {
1198 case MWIFIEX_TDLS_ENABLE_LINK:
1199 return mwifiex_tdls_process_enable_link(priv, peer);
1200 case MWIFIEX_TDLS_DISABLE_LINK:
1201 return mwifiex_tdls_process_disable_link(priv, peer);
1202 case MWIFIEX_TDLS_CREATE_LINK:
1203 return mwifiex_tdls_process_create_link(priv, peer);
1204 case MWIFIEX_TDLS_CONFIG_LINK:
1205 return mwifiex_tdls_process_config_link(priv, peer);
1206 }
1207 return 0;
1208 }
1209
1210 int mwifiex_get_tdls_link_status(struct mwifiex_private *priv, const u8 *mac)
1211 {
1212 struct mwifiex_sta_node *sta_ptr;
1213
1214 sta_ptr = mwifiex_get_sta_entry(priv, mac);
1215 if (sta_ptr)
1216 return sta_ptr->tdls_status;
1217
1218 return TDLS_NOT_SETUP;
1219 }
1220
1221 int mwifiex_get_tdls_list(struct mwifiex_private *priv,
1222 struct tdls_peer_info *buf)
1223 {
1224 struct mwifiex_sta_node *sta_ptr;
1225 struct tdls_peer_info *peer = buf;
1226 int count = 0;
1227
1228 if (!ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
1229 return 0;
1230
1231
1232 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
1233 return 0;
1234
1235 spin_lock_bh(&priv->sta_list_spinlock);
1236 list_for_each_entry(sta_ptr, &priv->sta_list, list) {
1237 if (mwifiex_is_tdls_link_setup(sta_ptr->tdls_status)) {
1238 ether_addr_copy(peer->peer_addr, sta_ptr->mac_addr);
1239 peer++;
1240 count++;
1241 if (count >= MWIFIEX_MAX_TDLS_PEER_SUPPORTED)
1242 break;
1243 }
1244 }
1245 spin_unlock_bh(&priv->sta_list_spinlock);
1246
1247 return count;
1248 }
1249
1250 void mwifiex_disable_all_tdls_links(struct mwifiex_private *priv)
1251 {
1252 struct mwifiex_sta_node *sta_ptr;
1253 struct mwifiex_ds_tdls_oper tdls_oper;
1254
1255 if (list_empty(&priv->sta_list))
1256 return;
1257
1258 list_for_each_entry(sta_ptr, &priv->sta_list, list) {
1259 memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
1260
1261 if (sta_ptr->is_11n_enabled) {
1262 mwifiex_11n_cleanup_reorder_tbl(priv);
1263 spin_lock_bh(&priv->wmm.ra_list_spinlock);
1264 mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
1265 spin_unlock_bh(&priv->wmm.ra_list_spinlock);
1266 }
1267
1268 mwifiex_restore_tdls_packets(priv, sta_ptr->mac_addr,
1269 TDLS_LINK_TEARDOWN);
1270 memcpy(&tdls_oper.peer_mac, sta_ptr->mac_addr, ETH_ALEN);
1271 tdls_oper.tdls_action = MWIFIEX_TDLS_DISABLE_LINK;
1272 if (mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
1273 HostCmd_ACT_GEN_SET, 0, &tdls_oper, false))
1274 mwifiex_dbg(priv->adapter, ERROR,
1275 "Disable link failed for TDLS peer %pM",
1276 sta_ptr->mac_addr);
1277 }
1278
1279 mwifiex_del_all_sta_list(priv);
1280 }
1281
1282 int mwifiex_tdls_check_tx(struct mwifiex_private *priv, struct sk_buff *skb)
1283 {
1284 struct mwifiex_auto_tdls_peer *peer;
1285 u8 mac[ETH_ALEN];
1286
1287 ether_addr_copy(mac, skb->data);
1288
1289 spin_lock_bh(&priv->auto_tdls_lock);
1290 list_for_each_entry(peer, &priv->auto_tdls_list, list) {
1291 if (!memcmp(mac, peer->mac_addr, ETH_ALEN)) {
1292 if (peer->rssi <= MWIFIEX_TDLS_RSSI_HIGH &&
1293 peer->tdls_status == TDLS_NOT_SETUP &&
1294 (peer->failure_count <
1295 MWIFIEX_TDLS_MAX_FAIL_COUNT)) {
1296 peer->tdls_status = TDLS_SETUP_INPROGRESS;
1297 mwifiex_dbg(priv->adapter, INFO,
1298 "setup TDLS link, peer=%pM rssi=%d\n",
1299 peer->mac_addr, peer->rssi);
1300
1301 cfg80211_tdls_oper_request(priv->netdev,
1302 peer->mac_addr,
1303 NL80211_TDLS_SETUP,
1304 0, GFP_ATOMIC);
1305 peer->do_setup = false;
1306 priv->check_tdls_tx = false;
1307 } else if (peer->failure_count <
1308 MWIFIEX_TDLS_MAX_FAIL_COUNT &&
1309 peer->do_discover) {
1310 mwifiex_send_tdls_data_frame(priv,
1311 peer->mac_addr,
1312 WLAN_TDLS_DISCOVERY_REQUEST,
1313 1, 0, NULL, 0);
1314 peer->do_discover = false;
1315 }
1316 }
1317 }
1318 spin_unlock_bh(&priv->auto_tdls_lock);
1319
1320 return 0;
1321 }
1322
1323 void mwifiex_flush_auto_tdls_list(struct mwifiex_private *priv)
1324 {
1325 struct mwifiex_auto_tdls_peer *peer, *tmp_node;
1326
1327 spin_lock_bh(&priv->auto_tdls_lock);
1328 list_for_each_entry_safe(peer, tmp_node, &priv->auto_tdls_list, list) {
1329 list_del(&peer->list);
1330 kfree(peer);
1331 }
1332
1333 INIT_LIST_HEAD(&priv->auto_tdls_list);
1334 spin_unlock_bh(&priv->auto_tdls_lock);
1335 priv->check_tdls_tx = false;
1336 }
1337
1338 void mwifiex_add_auto_tdls_peer(struct mwifiex_private *priv, const u8 *mac)
1339 {
1340 struct mwifiex_auto_tdls_peer *tdls_peer;
1341
1342 if (!priv->adapter->auto_tdls)
1343 return;
1344
1345 spin_lock_bh(&priv->auto_tdls_lock);
1346 list_for_each_entry(tdls_peer, &priv->auto_tdls_list, list) {
1347 if (!memcmp(tdls_peer->mac_addr, mac, ETH_ALEN)) {
1348 tdls_peer->tdls_status = TDLS_SETUP_INPROGRESS;
1349 tdls_peer->rssi_jiffies = jiffies;
1350 spin_unlock_bh(&priv->auto_tdls_lock);
1351 return;
1352 }
1353 }
1354
1355
1356 tdls_peer = kzalloc(sizeof(*tdls_peer), GFP_ATOMIC);
1357 if (tdls_peer) {
1358 ether_addr_copy(tdls_peer->mac_addr, mac);
1359 tdls_peer->tdls_status = TDLS_SETUP_INPROGRESS;
1360 tdls_peer->rssi_jiffies = jiffies;
1361 INIT_LIST_HEAD(&tdls_peer->list);
1362 list_add_tail(&tdls_peer->list, &priv->auto_tdls_list);
1363 mwifiex_dbg(priv->adapter, INFO,
1364 "Add auto TDLS peer= %pM to list\n", mac);
1365 }
1366
1367 spin_unlock_bh(&priv->auto_tdls_lock);
1368 }
1369
1370 void mwifiex_auto_tdls_update_peer_status(struct mwifiex_private *priv,
1371 const u8 *mac, u8 link_status)
1372 {
1373 struct mwifiex_auto_tdls_peer *peer;
1374
1375 if (!priv->adapter->auto_tdls)
1376 return;
1377
1378 spin_lock_bh(&priv->auto_tdls_lock);
1379 list_for_each_entry(peer, &priv->auto_tdls_list, list) {
1380 if (!memcmp(peer->mac_addr, mac, ETH_ALEN)) {
1381 if ((link_status == TDLS_NOT_SETUP) &&
1382 (peer->tdls_status == TDLS_SETUP_INPROGRESS))
1383 peer->failure_count++;
1384 else if (mwifiex_is_tdls_link_setup(link_status))
1385 peer->failure_count = 0;
1386
1387 peer->tdls_status = link_status;
1388 break;
1389 }
1390 }
1391 spin_unlock_bh(&priv->auto_tdls_lock);
1392 }
1393
1394 void mwifiex_auto_tdls_update_peer_signal(struct mwifiex_private *priv,
1395 u8 *mac, s8 snr, s8 nflr)
1396 {
1397 struct mwifiex_auto_tdls_peer *peer;
1398
1399 if (!priv->adapter->auto_tdls)
1400 return;
1401
1402 spin_lock_bh(&priv->auto_tdls_lock);
1403 list_for_each_entry(peer, &priv->auto_tdls_list, list) {
1404 if (!memcmp(peer->mac_addr, mac, ETH_ALEN)) {
1405 peer->rssi = nflr - snr;
1406 peer->rssi_jiffies = jiffies;
1407 break;
1408 }
1409 }
1410 spin_unlock_bh(&priv->auto_tdls_lock);
1411 }
1412
1413 void mwifiex_check_auto_tdls(struct timer_list *t)
1414 {
1415 struct mwifiex_private *priv = from_timer(priv, t, auto_tdls_timer);
1416 struct mwifiex_auto_tdls_peer *tdls_peer;
1417 u16 reason = WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED;
1418
1419 if (WARN_ON_ONCE(!priv || !priv->adapter)) {
1420 pr_err("mwifiex: %s: adapter or private structure is NULL\n",
1421 __func__);
1422 return;
1423 }
1424
1425 if (unlikely(!priv->adapter->auto_tdls))
1426 return;
1427
1428 if (!priv->auto_tdls_timer_active) {
1429 mwifiex_dbg(priv->adapter, INFO,
1430 "auto TDLS timer inactive; return");
1431 return;
1432 }
1433
1434 priv->check_tdls_tx = false;
1435
1436 spin_lock_bh(&priv->auto_tdls_lock);
1437 list_for_each_entry(tdls_peer, &priv->auto_tdls_list, list) {
1438 if ((jiffies - tdls_peer->rssi_jiffies) >
1439 (MWIFIEX_AUTO_TDLS_IDLE_TIME * HZ)) {
1440 tdls_peer->rssi = 0;
1441 tdls_peer->do_discover = true;
1442 priv->check_tdls_tx = true;
1443 }
1444
1445 if (((tdls_peer->rssi >= MWIFIEX_TDLS_RSSI_LOW) ||
1446 !tdls_peer->rssi) &&
1447 mwifiex_is_tdls_link_setup(tdls_peer->tdls_status)) {
1448 tdls_peer->tdls_status = TDLS_LINK_TEARDOWN;
1449 mwifiex_dbg(priv->adapter, MSG,
1450 "teardown TDLS link,peer=%pM rssi=%d\n",
1451 tdls_peer->mac_addr, -tdls_peer->rssi);
1452 tdls_peer->do_discover = true;
1453 priv->check_tdls_tx = true;
1454 cfg80211_tdls_oper_request(priv->netdev,
1455 tdls_peer->mac_addr,
1456 NL80211_TDLS_TEARDOWN,
1457 reason, GFP_ATOMIC);
1458 } else if (tdls_peer->rssi &&
1459 tdls_peer->rssi <= MWIFIEX_TDLS_RSSI_HIGH &&
1460 tdls_peer->tdls_status == TDLS_NOT_SETUP &&
1461 tdls_peer->failure_count <
1462 MWIFIEX_TDLS_MAX_FAIL_COUNT) {
1463 priv->check_tdls_tx = true;
1464 tdls_peer->do_setup = true;
1465 mwifiex_dbg(priv->adapter, INFO,
1466 "check TDLS with peer=%pM\t"
1467 "rssi=%d\n", tdls_peer->mac_addr,
1468 tdls_peer->rssi);
1469 }
1470 }
1471 spin_unlock_bh(&priv->auto_tdls_lock);
1472
1473 mod_timer(&priv->auto_tdls_timer,
1474 jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
1475 }
1476
1477 void mwifiex_setup_auto_tdls_timer(struct mwifiex_private *priv)
1478 {
1479 timer_setup(&priv->auto_tdls_timer, mwifiex_check_auto_tdls, 0);
1480 priv->auto_tdls_timer_active = true;
1481 mod_timer(&priv->auto_tdls_timer,
1482 jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
1483 }
1484
1485 void mwifiex_clean_auto_tdls(struct mwifiex_private *priv)
1486 {
1487 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
1488 priv->adapter->auto_tdls &&
1489 priv->bss_type == MWIFIEX_BSS_TYPE_STA) {
1490 priv->auto_tdls_timer_active = false;
1491 del_timer(&priv->auto_tdls_timer);
1492 mwifiex_flush_auto_tdls_list(priv);
1493 }
1494 }
1495
1496 static int mwifiex_config_tdls(struct mwifiex_private *priv, u8 enable)
1497 {
1498 struct mwifiex_tdls_config config;
1499
1500 config.enable = cpu_to_le16(enable);
1501 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
1502 ACT_TDLS_CS_ENABLE_CONFIG, 0, &config, true);
1503 }
1504
1505 int mwifiex_config_tdls_enable(struct mwifiex_private *priv)
1506 {
1507 return mwifiex_config_tdls(priv, true);
1508 }
1509
1510 int mwifiex_config_tdls_disable(struct mwifiex_private *priv)
1511 {
1512 return mwifiex_config_tdls(priv, false);
1513 }
1514
1515 int mwifiex_config_tdls_cs_params(struct mwifiex_private *priv)
1516 {
1517 struct mwifiex_tdls_config_cs_params config_tdls_cs_params;
1518
1519 config_tdls_cs_params.unit_time = MWIFIEX_DEF_CS_UNIT_TIME;
1520 config_tdls_cs_params.thr_otherlink = MWIFIEX_DEF_CS_THR_OTHERLINK;
1521 config_tdls_cs_params.thr_directlink = MWIFIEX_DEF_THR_DIRECTLINK;
1522
1523 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
1524 ACT_TDLS_CS_PARAMS, 0,
1525 &config_tdls_cs_params, true);
1526 }
1527
1528 int mwifiex_stop_tdls_cs(struct mwifiex_private *priv, const u8 *peer_mac)
1529 {
1530 struct mwifiex_tdls_stop_cs_params stop_tdls_cs_params;
1531
1532 ether_addr_copy(stop_tdls_cs_params.peer_mac, peer_mac);
1533
1534 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
1535 ACT_TDLS_CS_STOP, 0,
1536 &stop_tdls_cs_params, true);
1537 }
1538
1539 int mwifiex_start_tdls_cs(struct mwifiex_private *priv, const u8 *peer_mac,
1540 u8 primary_chan, u8 second_chan_offset, u8 band)
1541 {
1542 struct mwifiex_tdls_init_cs_params start_tdls_cs_params;
1543
1544 ether_addr_copy(start_tdls_cs_params.peer_mac, peer_mac);
1545 start_tdls_cs_params.primary_chan = primary_chan;
1546 start_tdls_cs_params.second_chan_offset = second_chan_offset;
1547 start_tdls_cs_params.band = band;
1548
1549 start_tdls_cs_params.switch_time = cpu_to_le16(MWIFIEX_DEF_CS_TIME);
1550 start_tdls_cs_params.switch_timeout =
1551 cpu_to_le16(MWIFIEX_DEF_CS_TIMEOUT);
1552 start_tdls_cs_params.reg_class = MWIFIEX_DEF_CS_REG_CLASS;
1553 start_tdls_cs_params.periodicity = MWIFIEX_DEF_CS_PERIODICITY;
1554
1555 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
1556 ACT_TDLS_CS_INIT, 0,
1557 &start_tdls_cs_params, true);
1558 }