1 /* Marvell Wireless LAN device driver: TDLS handling
3 * Copyright (C) 2014, Marvell International Ltd.
5 * This software file (the "File") is distributed by Marvell International
6 * Ltd. under the terms of the GNU General Public License Version 2, June 1991
7 * (the "License"). You may use, redistribute and/or modify this File in
8 * accordance with the terms and conditions of the License, a copy of which
9 * is available on the worldwide web at
10 * http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
12 * THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
13 * IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
14 * ARE EXPRESSLY DISCLAIMED. The License provides additional details about
15 * this warranty disclaimer.
21 #include "11n_rxreorder.h"
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
29 static void mwifiex_restore_tdls_packets(struct mwifiex_private *priv,
30 const u8 *mac, u8 status)
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;
40 mwifiex_dbg(priv->adapter, DATA, "%s: %pM\n", __func__, mac);
41 spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags);
43 skb_queue_walk_safe(&priv->tdls_txq, skb, tmp) {
44 if (!ether_addr_equal(mac, skb->data))
47 __skb_unlink(skb, &priv->tdls_txq);
48 tx_info = MWIFIEX_SKB_TXCB(skb);
50 tid_down = mwifiex_wmm_downgrade_tid(priv, tid);
52 if (mwifiex_is_tdls_link_setup(status)) {
53 ra_list = mwifiex_wmm_get_queue_raptr(priv, tid, mac);
54 ra_list->tdls_link = true;
55 tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT;
57 tid_list = &priv->wmm.tid_tbl_ptr[tid_down].ra_list;
58 ra_list = list_first_entry_or_null(tid_list,
59 struct mwifiex_ra_list_tbl, list);
60 tx_info->flags &= ~MWIFIEX_BUF_FLAG_TDLS_PKT;
64 mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
68 skb_queue_tail(&ra_list->skb_head, skb);
70 ra_list->ba_pkt_count++;
71 ra_list->total_pkt_count++;
73 if (atomic_read(&priv->wmm.highest_queued_prio) <
74 tos_to_tid_inv[tid_down])
75 atomic_set(&priv->wmm.highest_queued_prio,
76 tos_to_tid_inv[tid_down]);
78 atomic_inc(&priv->wmm.tx_pkts_queued);
81 spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags);
85 static void mwifiex_hold_tdls_packets(struct mwifiex_private *priv,
88 struct mwifiex_ra_list_tbl *ra_list;
89 struct list_head *ra_list_head;
90 struct sk_buff *skb, *tmp;
94 mwifiex_dbg(priv->adapter, DATA, "%s: %pM\n", __func__, mac);
95 spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags);
97 for (i = 0; i < MAX_NUM_TID; i++) {
98 if (!list_empty(&priv->wmm.tid_tbl_ptr[i].ra_list)) {
99 ra_list_head = &priv->wmm.tid_tbl_ptr[i].ra_list;
100 list_for_each_entry(ra_list, ra_list_head, list) {
101 skb_queue_walk_safe(&ra_list->skb_head, skb,
103 if (!ether_addr_equal(mac, skb->data))
105 __skb_unlink(skb, &ra_list->skb_head);
106 atomic_dec(&priv->wmm.tx_pkts_queued);
107 ra_list->total_pkt_count--;
108 skb_queue_tail(&priv->tdls_txq, skb);
114 spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags);
118 /* This function appends rate TLV to scan config command. */
120 mwifiex_tdls_append_rates_ie(struct mwifiex_private *priv,
123 u8 rates[MWIFIEX_SUPPORTED_RATES], *pos;
124 u16 rates_size, supp_rates_size, ext_rates_size;
126 memset(rates, 0, sizeof(rates));
127 rates_size = mwifiex_get_supported_rates(priv, rates);
129 supp_rates_size = min_t(u16, rates_size, MWIFIEX_TDLS_SUPPORTED_RATES);
131 if (skb_tailroom(skb) < rates_size + 4) {
132 mwifiex_dbg(priv->adapter, ERROR,
133 "Insufficient space while adding rates\n");
137 pos = skb_put(skb, supp_rates_size + 2);
138 *pos++ = WLAN_EID_SUPP_RATES;
139 *pos++ = supp_rates_size;
140 memcpy(pos, rates, supp_rates_size);
142 if (rates_size > MWIFIEX_TDLS_SUPPORTED_RATES) {
143 ext_rates_size = rates_size - MWIFIEX_TDLS_SUPPORTED_RATES;
144 pos = skb_put(skb, ext_rates_size + 2);
145 *pos++ = WLAN_EID_EXT_SUPP_RATES;
146 *pos++ = ext_rates_size;
147 memcpy(pos, rates + MWIFIEX_TDLS_SUPPORTED_RATES,
154 static void mwifiex_tdls_add_aid(struct mwifiex_private *priv,
157 struct ieee_types_assoc_rsp *assoc_rsp;
160 assoc_rsp = (struct ieee_types_assoc_rsp *)&priv->assoc_rsp_buf;
161 pos = skb_put(skb, 4);
162 *pos++ = WLAN_EID_AID;
164 memcpy(pos, &assoc_rsp->a_id, sizeof(assoc_rsp->a_id));
169 static int mwifiex_tdls_add_vht_capab(struct mwifiex_private *priv,
172 struct ieee80211_vht_cap vht_cap;
175 pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
176 *pos++ = WLAN_EID_VHT_CAPABILITY;
177 *pos++ = sizeof(struct ieee80211_vht_cap);
179 memset(&vht_cap, 0, sizeof(struct ieee80211_vht_cap));
181 mwifiex_fill_vht_cap_tlv(priv, &vht_cap, priv->curr_bss_params.band);
182 memcpy(pos, &vht_cap, sizeof(vht_cap));
188 mwifiex_tdls_add_ht_oper(struct mwifiex_private *priv, const u8 *mac,
189 u8 vht_enabled, struct sk_buff *skb)
191 struct ieee80211_ht_operation *ht_oper;
192 struct mwifiex_sta_node *sta_ptr;
193 struct mwifiex_bssdescriptor *bss_desc =
194 &priv->curr_bss_params.bss_descriptor;
197 sta_ptr = mwifiex_get_sta_entry(priv, mac);
198 if (unlikely(!sta_ptr)) {
199 mwifiex_dbg(priv->adapter, ERROR,
200 "TDLS peer station not found in list\n");
204 if (!(le16_to_cpu(sta_ptr->tdls_cap.ht_capb.cap_info))) {
205 mwifiex_dbg(priv->adapter, WARN,
206 "TDLS peer doesn't support ht capabilities\n");
210 pos = skb_put(skb, sizeof(struct ieee80211_ht_operation) + 2);
211 *pos++ = WLAN_EID_HT_OPERATION;
212 *pos++ = sizeof(struct ieee80211_ht_operation);
213 ht_oper = (void *)pos;
215 ht_oper->primary_chan = bss_desc->channel;
217 /* follow AP's channel bandwidth */
218 if (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) &&
219 bss_desc->bcn_ht_cap &&
220 ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param))
221 ht_oper->ht_param = bss_desc->bcn_ht_oper->ht_param;
225 mwifiex_get_sec_chan_offset(bss_desc->channel);
226 ht_oper->ht_param |= BIT(2);
229 memcpy(&sta_ptr->tdls_cap.ht_oper, ht_oper,
230 sizeof(struct ieee80211_ht_operation));
235 static int mwifiex_tdls_add_vht_oper(struct mwifiex_private *priv,
236 const u8 *mac, struct sk_buff *skb)
238 struct mwifiex_bssdescriptor *bss_desc;
239 struct ieee80211_vht_operation *vht_oper;
240 struct ieee80211_vht_cap *vht_cap, *ap_vht_cap = NULL;
241 struct mwifiex_sta_node *sta_ptr;
242 struct mwifiex_adapter *adapter = priv->adapter;
243 u8 supp_chwd_set, peer_supp_chwd_set;
244 u8 *pos, ap_supp_chwd_set, chan_bw;
245 u16 mcs_map_user, mcs_map_resp, mcs_map_result;
246 u16 mcs_user, mcs_resp, nss;
247 u32 usr_vht_cap_info;
249 bss_desc = &priv->curr_bss_params.bss_descriptor;
251 sta_ptr = mwifiex_get_sta_entry(priv, mac);
252 if (unlikely(!sta_ptr)) {
253 mwifiex_dbg(adapter, ERROR,
254 "TDLS peer station not found in list\n");
258 if (!(le32_to_cpu(sta_ptr->tdls_cap.vhtcap.vht_cap_info))) {
259 mwifiex_dbg(adapter, WARN,
260 "TDLS peer doesn't support vht capabilities\n");
264 if (!mwifiex_is_bss_in_11ac_mode(priv)) {
265 if (sta_ptr->tdls_cap.extcap.ext_capab[7] &
266 WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) {
267 mwifiex_dbg(adapter, WARN,
268 "TDLS peer doesn't support wider bandwidth\n");
272 ap_vht_cap = bss_desc->bcn_vht_cap;
275 pos = skb_put(skb, sizeof(struct ieee80211_vht_operation) + 2);
276 *pos++ = WLAN_EID_VHT_OPERATION;
277 *pos++ = sizeof(struct ieee80211_vht_operation);
278 vht_oper = (struct ieee80211_vht_operation *)pos;
280 if (bss_desc->bss_band & BAND_A)
281 usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
283 usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
285 /* find the minimum bandwidth between AP/TDLS peers */
286 vht_cap = &sta_ptr->tdls_cap.vhtcap;
287 supp_chwd_set = GET_VHTCAP_CHWDSET(usr_vht_cap_info);
289 GET_VHTCAP_CHWDSET(le32_to_cpu(vht_cap->vht_cap_info));
290 supp_chwd_set = min_t(u8, supp_chwd_set, peer_supp_chwd_set);
292 /* We need check AP's bandwidth when TDLS_WIDER_BANDWIDTH is off */
294 if (ap_vht_cap && sta_ptr->tdls_cap.extcap.ext_capab[7] &
295 WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) {
297 GET_VHTCAP_CHWDSET(le32_to_cpu(ap_vht_cap->vht_cap_info));
298 supp_chwd_set = min_t(u8, supp_chwd_set, ap_supp_chwd_set);
301 switch (supp_chwd_set) {
302 case IEEE80211_VHT_CHANWIDTH_80MHZ:
303 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
305 case IEEE80211_VHT_CHANWIDTH_160MHZ:
306 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_160MHZ;
308 case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
309 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
312 vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT;
316 mcs_map_user = GET_DEVRXMCSMAP(adapter->usr_dot_11ac_mcs_support);
317 mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.rx_mcs_map);
320 for (nss = 1; nss <= 8; nss++) {
321 mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
322 mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
324 if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
325 (mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
326 SET_VHTNSSMCS(mcs_map_result, nss,
327 IEEE80211_VHT_MCS_NOT_SUPPORTED);
329 SET_VHTNSSMCS(mcs_map_result, nss,
330 min_t(u16, mcs_user, mcs_resp));
333 vht_oper->basic_mcs_set = cpu_to_le16(mcs_map_result);
335 switch (vht_oper->chan_width) {
336 case IEEE80211_VHT_CHANWIDTH_80MHZ:
337 chan_bw = IEEE80211_VHT_CHANWIDTH_80MHZ;
339 case IEEE80211_VHT_CHANWIDTH_160MHZ:
340 chan_bw = IEEE80211_VHT_CHANWIDTH_160MHZ;
342 case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
343 chan_bw = IEEE80211_VHT_CHANWIDTH_80MHZ;
346 chan_bw = IEEE80211_VHT_CHANWIDTH_USE_HT;
349 vht_oper->center_freq_seg0_idx =
350 mwifiex_get_center_freq_index(priv, BAND_AAC,
357 static void mwifiex_tdls_add_ext_capab(struct mwifiex_private *priv,
360 struct ieee_types_extcap *extcap;
362 extcap = skb_put(skb, sizeof(struct ieee_types_extcap));
363 extcap->ieee_hdr.element_id = WLAN_EID_EXT_CAPABILITY;
364 extcap->ieee_hdr.len = 8;
365 memset(extcap->ext_capab, 0, 8);
366 extcap->ext_capab[4] |= WLAN_EXT_CAPA5_TDLS_ENABLED;
367 extcap->ext_capab[3] |= WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH;
369 if (priv->adapter->is_hw_11ac_capable)
370 extcap->ext_capab[7] |= WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED;
373 static void mwifiex_tdls_add_qos_capab(struct sk_buff *skb)
375 u8 *pos = skb_put(skb, 3);
377 *pos++ = WLAN_EID_QOS_CAPA;
379 *pos++ = MWIFIEX_TDLS_DEF_QOS_CAPAB;
383 mwifiex_tdls_add_wmm_param_ie(struct mwifiex_private *priv, struct sk_buff *skb)
385 struct ieee80211_wmm_param_ie *wmm;
386 u8 ac_vi[] = {0x42, 0x43, 0x5e, 0x00};
387 u8 ac_vo[] = {0x62, 0x32, 0x2f, 0x00};
388 u8 ac_be[] = {0x03, 0xa4, 0x00, 0x00};
389 u8 ac_bk[] = {0x27, 0xa4, 0x00, 0x00};
391 wmm = skb_put_zero(skb, sizeof(*wmm));
393 wmm->element_id = WLAN_EID_VENDOR_SPECIFIC;
394 wmm->len = sizeof(*wmm) - 2;
395 wmm->oui[0] = 0x00; /* Microsoft OUI 00:50:F2 */
398 wmm->oui_type = 2; /* WME */
399 wmm->oui_subtype = 1; /* WME param */
400 wmm->version = 1; /* WME ver */
401 wmm->qos_info = 0; /* U-APSD not in use */
403 /* use default WMM AC parameters for TDLS link*/
404 memcpy(&wmm->ac[0], ac_be, sizeof(ac_be));
405 memcpy(&wmm->ac[1], ac_bk, sizeof(ac_bk));
406 memcpy(&wmm->ac[2], ac_vi, sizeof(ac_vi));
407 memcpy(&wmm->ac[3], ac_vo, sizeof(ac_vo));
411 mwifiex_add_wmm_info_ie(struct mwifiex_private *priv, struct sk_buff *skb,
417 MWIFIEX_TDLS_WMM_INFO_SIZE + sizeof(struct ieee_types_header));
419 *buf++ = WLAN_EID_VENDOR_SPECIFIC;
420 *buf++ = 7; /* len */
421 *buf++ = 0x00; /* Microsoft OUI 00:50:F2 */
424 *buf++ = 2; /* WME */
425 *buf++ = 0; /* WME info */
426 *buf++ = 1; /* WME ver */
427 *buf++ = qosinfo; /* U-APSD no in use */
430 static void mwifiex_tdls_add_bss_co_2040(struct sk_buff *skb)
432 struct ieee_types_bss_co_2040 *bssco;
434 bssco = skb_put(skb, sizeof(struct ieee_types_bss_co_2040));
435 bssco->ieee_hdr.element_id = WLAN_EID_BSS_COEX_2040;
436 bssco->ieee_hdr.len = sizeof(struct ieee_types_bss_co_2040) -
437 sizeof(struct ieee_types_header);
438 bssco->bss_2040co = 0x01;
441 static void mwifiex_tdls_add_supported_chan(struct sk_buff *skb)
443 struct ieee_types_generic *supp_chan;
444 u8 chan_supp[] = {1, 11};
446 supp_chan = skb_put(skb,
447 (sizeof(struct ieee_types_header) + sizeof(chan_supp)));
448 supp_chan->ieee_hdr.element_id = WLAN_EID_SUPPORTED_CHANNELS;
449 supp_chan->ieee_hdr.len = sizeof(chan_supp);
450 memcpy(supp_chan->data, chan_supp, sizeof(chan_supp));
453 static void mwifiex_tdls_add_oper_class(struct sk_buff *skb)
455 struct ieee_types_generic *reg_class;
457 1, 2, 3, 4, 12, 22, 23, 24, 25, 27, 28, 29, 30, 32, 33};
458 reg_class = skb_put(skb,
459 (sizeof(struct ieee_types_header) + sizeof(rc_list)));
460 reg_class->ieee_hdr.element_id = WLAN_EID_SUPPORTED_REGULATORY_CLASSES;
461 reg_class->ieee_hdr.len = sizeof(rc_list);
462 memcpy(reg_class->data, rc_list, sizeof(rc_list));
465 static int mwifiex_prep_tdls_encap_data(struct mwifiex_private *priv,
466 const u8 *peer, u8 action_code,
468 u16 status_code, struct sk_buff *skb)
470 struct ieee80211_tdls_data *tf;
473 struct ieee80211_ht_cap *ht_cap;
476 capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
478 tf = skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
479 memcpy(tf->da, peer, ETH_ALEN);
480 memcpy(tf->sa, priv->curr_addr, ETH_ALEN);
481 tf->ether_type = cpu_to_be16(ETH_P_TDLS);
482 tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
484 switch (action_code) {
485 case WLAN_TDLS_SETUP_REQUEST:
486 tf->category = WLAN_CATEGORY_TDLS;
487 tf->action_code = WLAN_TDLS_SETUP_REQUEST;
488 skb_put(skb, sizeof(tf->u.setup_req));
489 tf->u.setup_req.dialog_token = dialog_token;
490 tf->u.setup_req.capability = cpu_to_le16(capab);
491 ret = mwifiex_tdls_append_rates_ie(priv, skb);
493 dev_kfree_skb_any(skb);
497 pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
498 *pos++ = WLAN_EID_HT_CAPABILITY;
499 *pos++ = sizeof(struct ieee80211_ht_cap);
500 ht_cap = (void *)pos;
501 radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
502 ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
504 dev_kfree_skb_any(skb);
508 if (priv->adapter->is_hw_11ac_capable) {
509 ret = mwifiex_tdls_add_vht_capab(priv, skb);
511 dev_kfree_skb_any(skb);
514 mwifiex_tdls_add_aid(priv, skb);
517 mwifiex_tdls_add_ext_capab(priv, skb);
518 mwifiex_tdls_add_bss_co_2040(skb);
519 mwifiex_tdls_add_supported_chan(skb);
520 mwifiex_tdls_add_oper_class(skb);
521 mwifiex_add_wmm_info_ie(priv, skb, 0);
524 case WLAN_TDLS_SETUP_RESPONSE:
525 tf->category = WLAN_CATEGORY_TDLS;
526 tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
527 skb_put(skb, sizeof(tf->u.setup_resp));
528 tf->u.setup_resp.status_code = cpu_to_le16(status_code);
529 tf->u.setup_resp.dialog_token = dialog_token;
530 tf->u.setup_resp.capability = cpu_to_le16(capab);
531 ret = mwifiex_tdls_append_rates_ie(priv, skb);
533 dev_kfree_skb_any(skb);
537 pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
538 *pos++ = WLAN_EID_HT_CAPABILITY;
539 *pos++ = sizeof(struct ieee80211_ht_cap);
540 ht_cap = (void *)pos;
541 radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
542 ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
544 dev_kfree_skb_any(skb);
548 if (priv->adapter->is_hw_11ac_capable) {
549 ret = mwifiex_tdls_add_vht_capab(priv, skb);
551 dev_kfree_skb_any(skb);
554 mwifiex_tdls_add_aid(priv, skb);
557 mwifiex_tdls_add_ext_capab(priv, skb);
558 mwifiex_tdls_add_bss_co_2040(skb);
559 mwifiex_tdls_add_supported_chan(skb);
560 mwifiex_tdls_add_oper_class(skb);
561 mwifiex_add_wmm_info_ie(priv, skb, 0);
564 case WLAN_TDLS_SETUP_CONFIRM:
565 tf->category = WLAN_CATEGORY_TDLS;
566 tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
567 skb_put(skb, sizeof(tf->u.setup_cfm));
568 tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
569 tf->u.setup_cfm.dialog_token = dialog_token;
571 mwifiex_tdls_add_wmm_param_ie(priv, skb);
572 if (priv->adapter->is_hw_11ac_capable) {
573 ret = mwifiex_tdls_add_vht_oper(priv, peer, skb);
575 dev_kfree_skb_any(skb);
578 ret = mwifiex_tdls_add_ht_oper(priv, peer, 1, skb);
580 dev_kfree_skb_any(skb);
584 ret = mwifiex_tdls_add_ht_oper(priv, peer, 0, skb);
586 dev_kfree_skb_any(skb);
592 case WLAN_TDLS_TEARDOWN:
593 tf->category = WLAN_CATEGORY_TDLS;
594 tf->action_code = WLAN_TDLS_TEARDOWN;
595 skb_put(skb, sizeof(tf->u.teardown));
596 tf->u.teardown.reason_code = cpu_to_le16(status_code);
599 case WLAN_TDLS_DISCOVERY_REQUEST:
600 tf->category = WLAN_CATEGORY_TDLS;
601 tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
602 skb_put(skb, sizeof(tf->u.discover_req));
603 tf->u.discover_req.dialog_token = dialog_token;
606 mwifiex_dbg(priv->adapter, ERROR, "Unknown TDLS frame type.\n");
614 mwifiex_tdls_add_link_ie(struct sk_buff *skb, const u8 *src_addr,
615 const u8 *peer, const u8 *bssid)
617 struct ieee80211_tdls_lnkie *lnkid;
619 lnkid = skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
620 lnkid->ie_type = WLAN_EID_LINK_ID;
621 lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) -
622 sizeof(struct ieee_types_header);
624 memcpy(lnkid->bssid, bssid, ETH_ALEN);
625 memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
626 memcpy(lnkid->resp_sta, peer, ETH_ALEN);
629 int mwifiex_send_tdls_data_frame(struct mwifiex_private *priv, const u8 *peer,
630 u8 action_code, u8 dialog_token,
631 u16 status_code, const u8 *extra_ies,
632 size_t extra_ies_len)
635 struct mwifiex_txinfo *tx_info;
639 skb_len = MWIFIEX_MIN_DATA_HEADER_LEN +
640 max(sizeof(struct ieee80211_mgmt),
641 sizeof(struct ieee80211_tdls_data)) +
642 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
643 MWIFIEX_SUPPORTED_RATES +
645 sizeof(struct ieee_types_extcap) +
646 sizeof(struct ieee80211_ht_cap) +
647 sizeof(struct ieee_types_bss_co_2040) +
648 sizeof(struct ieee80211_ht_operation) +
649 sizeof(struct ieee80211_tdls_lnkie) +
650 (2 * (sizeof(struct ieee_types_header))) +
651 MWIFIEX_SUPPORTED_CHANNELS +
652 MWIFIEX_OPERATING_CLASSES +
653 sizeof(struct ieee80211_wmm_param_ie) +
656 if (priv->adapter->is_hw_11ac_capable)
657 skb_len += sizeof(struct ieee_types_vht_cap) +
658 sizeof(struct ieee_types_vht_oper) +
659 sizeof(struct ieee_types_aid);
661 skb = dev_alloc_skb(skb_len);
663 mwifiex_dbg(priv->adapter, ERROR,
664 "allocate skb failed for management frame\n");
667 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
669 switch (action_code) {
670 case WLAN_TDLS_SETUP_REQUEST:
671 case WLAN_TDLS_SETUP_CONFIRM:
672 case WLAN_TDLS_TEARDOWN:
673 case WLAN_TDLS_DISCOVERY_REQUEST:
674 ret = mwifiex_prep_tdls_encap_data(priv, peer, action_code,
675 dialog_token, status_code,
678 dev_kfree_skb_any(skb);
682 skb_put_data(skb, extra_ies, extra_ies_len);
683 mwifiex_tdls_add_link_ie(skb, priv->curr_addr, peer,
686 case WLAN_TDLS_SETUP_RESPONSE:
687 ret = mwifiex_prep_tdls_encap_data(priv, peer, action_code,
688 dialog_token, status_code,
691 dev_kfree_skb_any(skb);
695 skb_put_data(skb, extra_ies, extra_ies_len);
696 mwifiex_tdls_add_link_ie(skb, peer, priv->curr_addr,
701 switch (action_code) {
702 case WLAN_TDLS_SETUP_REQUEST:
703 case WLAN_TDLS_SETUP_RESPONSE:
704 skb->priority = MWIFIEX_PRIO_BK;
707 skb->priority = MWIFIEX_PRIO_VI;
711 tx_info = MWIFIEX_SKB_TXCB(skb);
712 memset(tx_info, 0, sizeof(*tx_info));
713 tx_info->bss_num = priv->bss_num;
714 tx_info->bss_type = priv->bss_type;
716 __net_timestamp(skb);
717 mwifiex_queue_tx_pkt(priv, skb);
719 /* Delay 10ms to make sure tdls setup confirm/teardown frame
720 * is received by peer
722 if (action_code == WLAN_TDLS_SETUP_CONFIRM ||
723 action_code == WLAN_TDLS_TEARDOWN)
724 msleep_interruptible(10);
730 mwifiex_construct_tdls_action_frame(struct mwifiex_private *priv,
732 u8 action_code, u8 dialog_token,
733 u16 status_code, struct sk_buff *skb)
735 struct ieee80211_mgmt *mgmt;
736 u8 bc_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
739 struct ieee80211_ht_cap *ht_cap;
743 capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
745 mgmt = skb_put(skb, offsetof(struct ieee80211_mgmt, u));
748 memcpy(mgmt->da, peer, ETH_ALEN);
749 memcpy(mgmt->sa, priv->curr_addr, ETH_ALEN);
750 memcpy(mgmt->bssid, priv->cfg_bssid, ETH_ALEN);
751 mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
752 IEEE80211_STYPE_ACTION);
755 pos = skb_put(skb, ETH_ALEN);
757 switch (action_code) {
758 case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
759 /* See the layout of 'struct ieee80211_mgmt'. */
760 extra = sizeof(mgmt->u.action.u.tdls_discover_resp) +
761 sizeof(mgmt->u.action.category);
763 mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
764 mgmt->u.action.u.tdls_discover_resp.action_code =
765 WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
766 mgmt->u.action.u.tdls_discover_resp.dialog_token =
768 mgmt->u.action.u.tdls_discover_resp.capability =
770 /* move back for addr4 */
771 memmove(pos + ETH_ALEN, &mgmt->u.action, extra);
773 memcpy(pos, bc_addr, ETH_ALEN);
775 ret = mwifiex_tdls_append_rates_ie(priv, skb);
777 dev_kfree_skb_any(skb);
781 pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
782 *pos++ = WLAN_EID_HT_CAPABILITY;
783 *pos++ = sizeof(struct ieee80211_ht_cap);
784 ht_cap = (void *)pos;
785 radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
786 ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
788 dev_kfree_skb_any(skb);
792 if (priv->adapter->is_hw_11ac_capable) {
793 ret = mwifiex_tdls_add_vht_capab(priv, skb);
795 dev_kfree_skb_any(skb);
798 mwifiex_tdls_add_aid(priv, skb);
801 mwifiex_tdls_add_ext_capab(priv, skb);
802 mwifiex_tdls_add_bss_co_2040(skb);
803 mwifiex_tdls_add_supported_chan(skb);
804 mwifiex_tdls_add_qos_capab(skb);
805 mwifiex_tdls_add_oper_class(skb);
808 mwifiex_dbg(priv->adapter, ERROR, "Unknown TDLS action frame type\n");
815 int mwifiex_send_tdls_action_frame(struct mwifiex_private *priv, const u8 *peer,
816 u8 action_code, u8 dialog_token,
817 u16 status_code, const u8 *extra_ies,
818 size_t extra_ies_len)
821 struct mwifiex_txinfo *tx_info;
823 u32 pkt_type, tx_control;
824 u16 pkt_len, skb_len;
826 skb_len = MWIFIEX_MIN_DATA_HEADER_LEN +
827 max(sizeof(struct ieee80211_mgmt),
828 sizeof(struct ieee80211_tdls_data)) +
829 MWIFIEX_MGMT_FRAME_HEADER_SIZE +
830 MWIFIEX_SUPPORTED_RATES +
831 sizeof(struct ieee_types_extcap) +
832 sizeof(struct ieee80211_ht_cap) +
833 sizeof(struct ieee_types_bss_co_2040) +
834 sizeof(struct ieee80211_ht_operation) +
835 sizeof(struct ieee80211_tdls_lnkie) +
838 ETH_ALEN; /* Address4 */
840 if (priv->adapter->is_hw_11ac_capable)
841 skb_len += sizeof(struct ieee_types_vht_cap) +
842 sizeof(struct ieee_types_vht_oper) +
843 sizeof(struct ieee_types_aid);
845 skb = dev_alloc_skb(skb_len);
847 mwifiex_dbg(priv->adapter, ERROR,
848 "allocate skb failed for management frame\n");
852 skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
854 pkt_type = PKT_TYPE_MGMT;
856 pos = skb_put_zero(skb,
857 MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
858 memcpy(pos, &pkt_type, sizeof(pkt_type));
859 memcpy(pos + sizeof(pkt_type), &tx_control, sizeof(tx_control));
861 if (mwifiex_construct_tdls_action_frame(priv, peer, action_code,
862 dialog_token, status_code,
864 dev_kfree_skb_any(skb);
869 skb_put_data(skb, extra_ies, extra_ies_len);
871 /* the TDLS link IE is always added last we are the responder */
873 mwifiex_tdls_add_link_ie(skb, peer, priv->curr_addr,
876 skb->priority = MWIFIEX_PRIO_VI;
878 tx_info = MWIFIEX_SKB_TXCB(skb);
879 memset(tx_info, 0, sizeof(*tx_info));
880 tx_info->bss_num = priv->bss_num;
881 tx_info->bss_type = priv->bss_type;
882 tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT;
884 pkt_len = skb->len - MWIFIEX_MGMT_FRAME_HEADER_SIZE - sizeof(pkt_len);
885 memcpy(skb->data + MWIFIEX_MGMT_FRAME_HEADER_SIZE, &pkt_len,
887 __net_timestamp(skb);
888 mwifiex_queue_tx_pkt(priv, skb);
893 /* This function process tdls action frame from peer.
894 * Peer capabilities are stored into station node structure.
896 void mwifiex_process_tdls_action_frame(struct mwifiex_private *priv,
899 struct mwifiex_sta_node *sta_ptr;
900 u8 *peer, *pos, *end;
905 if (len < (sizeof(struct ethhdr) + 3))
907 if (*(buf + sizeof(struct ethhdr)) != WLAN_TDLS_SNAP_RFTYPE)
909 if (*(buf + sizeof(struct ethhdr) + 1) != WLAN_CATEGORY_TDLS)
912 peer = buf + ETH_ALEN;
913 action = *(buf + sizeof(struct ethhdr) + 2);
914 mwifiex_dbg(priv->adapter, DATA,
915 "rx:tdls action: peer=%pM, action=%d\n", peer, action);
918 case WLAN_TDLS_SETUP_REQUEST:
919 if (len < (sizeof(struct ethhdr) + TDLS_REQ_FIX_LEN))
922 pos = buf + sizeof(struct ethhdr) + 4;
923 /* payload 1+ category 1 + action 1 + dialog 1 */
924 cap = get_unaligned_le16(pos);
925 ies_len = len - sizeof(struct ethhdr) - TDLS_REQ_FIX_LEN;
929 case WLAN_TDLS_SETUP_RESPONSE:
930 if (len < (sizeof(struct ethhdr) + TDLS_RESP_FIX_LEN))
932 /* payload 1+ category 1 + action 1 + dialog 1 + status code 2*/
933 pos = buf + sizeof(struct ethhdr) + 6;
934 cap = get_unaligned_le16(pos);
935 ies_len = len - sizeof(struct ethhdr) - TDLS_RESP_FIX_LEN;
939 case WLAN_TDLS_SETUP_CONFIRM:
940 if (len < (sizeof(struct ethhdr) + TDLS_CONFIRM_FIX_LEN))
942 pos = buf + sizeof(struct ethhdr) + TDLS_CONFIRM_FIX_LEN;
943 ies_len = len - sizeof(struct ethhdr) - TDLS_CONFIRM_FIX_LEN;
946 mwifiex_dbg(priv->adapter, ERROR, "Unknown TDLS frame type.\n");
950 sta_ptr = mwifiex_add_sta_entry(priv, peer);
954 sta_ptr->tdls_cap.capab = cpu_to_le16(cap);
956 for (end = pos + ies_len; pos + 1 < end; pos += 2 + pos[1]) {
959 if (pos + 2 + ie_len > end)
963 case WLAN_EID_SUPP_RATES:
964 if (ie_len > sizeof(sta_ptr->tdls_cap.rates))
966 sta_ptr->tdls_cap.rates_len = ie_len;
967 for (i = 0; i < ie_len; i++)
968 sta_ptr->tdls_cap.rates[i] = pos[i + 2];
971 case WLAN_EID_EXT_SUPP_RATES:
972 if (ie_len > sizeof(sta_ptr->tdls_cap.rates))
974 basic = sta_ptr->tdls_cap.rates_len;
975 if (ie_len > sizeof(sta_ptr->tdls_cap.rates) - basic)
977 for (i = 0; i < ie_len; i++)
978 sta_ptr->tdls_cap.rates[basic + i] = pos[i + 2];
979 sta_ptr->tdls_cap.rates_len += ie_len;
981 case WLAN_EID_HT_CAPABILITY:
982 if (ie_len != sizeof(struct ieee80211_ht_cap))
984 /* copy the ie's value into ht_capb*/
985 memcpy((u8 *)&sta_ptr->tdls_cap.ht_capb, pos + 2,
986 sizeof(struct ieee80211_ht_cap));
987 sta_ptr->is_11n_enabled = 1;
989 case WLAN_EID_HT_OPERATION:
990 if (ie_len != sizeof(struct ieee80211_ht_operation))
992 /* copy the ie's value into ht_oper*/
993 memcpy(&sta_ptr->tdls_cap.ht_oper, pos + 2,
994 sizeof(struct ieee80211_ht_operation));
996 case WLAN_EID_BSS_COEX_2040:
997 if (ie_len != sizeof(pos[2]))
999 sta_ptr->tdls_cap.coex_2040 = pos[2];
1001 case WLAN_EID_EXT_CAPABILITY:
1002 if (ie_len < sizeof(struct ieee_types_header))
1006 memcpy((u8 *)&sta_ptr->tdls_cap.extcap, pos,
1007 sizeof(struct ieee_types_header) +
1008 min_t(u8, ie_len, 8));
1011 if (ie_len < sizeof(struct ieee_types_header))
1013 if (ie_len > IEEE_MAX_IE_SIZE -
1014 sizeof(struct ieee_types_header))
1016 memcpy((u8 *)&sta_ptr->tdls_cap.rsn_ie, pos,
1017 sizeof(struct ieee_types_header) +
1018 min_t(u8, ie_len, IEEE_MAX_IE_SIZE -
1019 sizeof(struct ieee_types_header)));
1021 case WLAN_EID_QOS_CAPA:
1022 if (ie_len != sizeof(pos[2]))
1024 sta_ptr->tdls_cap.qos_info = pos[2];
1026 case WLAN_EID_VHT_OPERATION:
1027 if (priv->adapter->is_hw_11ac_capable) {
1029 sizeof(struct ieee80211_vht_operation))
1031 /* copy the ie's value into vhtoper*/
1032 memcpy(&sta_ptr->tdls_cap.vhtoper, pos + 2,
1033 sizeof(struct ieee80211_vht_operation));
1036 case WLAN_EID_VHT_CAPABILITY:
1037 if (priv->adapter->is_hw_11ac_capable) {
1038 if (ie_len != sizeof(struct ieee80211_vht_cap))
1040 /* copy the ie's value into vhtcap*/
1041 memcpy((u8 *)&sta_ptr->tdls_cap.vhtcap, pos + 2,
1042 sizeof(struct ieee80211_vht_cap));
1043 sta_ptr->is_11ac_enabled = 1;
1047 if (priv->adapter->is_hw_11ac_capable) {
1048 if (ie_len != sizeof(u16))
1050 sta_ptr->tdls_cap.aid =
1051 get_unaligned_le16((pos + 2));
1063 mwifiex_tdls_process_config_link(struct mwifiex_private *priv, const u8 *peer)
1065 struct mwifiex_sta_node *sta_ptr;
1066 struct mwifiex_ds_tdls_oper tdls_oper;
1068 memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
1069 sta_ptr = mwifiex_get_sta_entry(priv, peer);
1071 if (!sta_ptr || sta_ptr->tdls_status == TDLS_SETUP_FAILURE) {
1072 mwifiex_dbg(priv->adapter, ERROR,
1073 "link absent for peer %pM; cannot config\n", peer);
1077 memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
1078 tdls_oper.tdls_action = MWIFIEX_TDLS_CONFIG_LINK;
1079 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
1080 HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
1084 mwifiex_tdls_process_create_link(struct mwifiex_private *priv, const u8 *peer)
1086 struct mwifiex_sta_node *sta_ptr;
1087 struct mwifiex_ds_tdls_oper tdls_oper;
1089 memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
1090 sta_ptr = mwifiex_get_sta_entry(priv, peer);
1092 if (sta_ptr && sta_ptr->tdls_status == TDLS_SETUP_INPROGRESS) {
1093 mwifiex_dbg(priv->adapter, WARN,
1094 "Setup already in progress for peer %pM\n", peer);
1098 sta_ptr = mwifiex_add_sta_entry(priv, peer);
1102 sta_ptr->tdls_status = TDLS_SETUP_INPROGRESS;
1103 mwifiex_hold_tdls_packets(priv, peer);
1104 memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
1105 tdls_oper.tdls_action = MWIFIEX_TDLS_CREATE_LINK;
1106 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
1107 HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
1111 mwifiex_tdls_process_disable_link(struct mwifiex_private *priv, const u8 *peer)
1113 struct mwifiex_sta_node *sta_ptr;
1114 struct mwifiex_ds_tdls_oper tdls_oper;
1115 unsigned long flags;
1117 memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
1118 sta_ptr = mwifiex_get_sta_entry(priv, peer);
1121 if (sta_ptr->is_11n_enabled) {
1122 mwifiex_11n_cleanup_reorder_tbl(priv);
1123 spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
1125 mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
1126 spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
1129 mwifiex_del_sta_entry(priv, peer);
1132 mwifiex_restore_tdls_packets(priv, peer, TDLS_LINK_TEARDOWN);
1133 mwifiex_auto_tdls_update_peer_status(priv, peer, TDLS_NOT_SETUP);
1134 memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
1135 tdls_oper.tdls_action = MWIFIEX_TDLS_DISABLE_LINK;
1136 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
1137 HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
1141 mwifiex_tdls_process_enable_link(struct mwifiex_private *priv, const u8 *peer)
1143 struct mwifiex_sta_node *sta_ptr;
1144 struct ieee80211_mcs_info mcs;
1145 unsigned long flags;
1148 sta_ptr = mwifiex_get_sta_entry(priv, peer);
1150 if (sta_ptr && (sta_ptr->tdls_status != TDLS_SETUP_FAILURE)) {
1151 mwifiex_dbg(priv->adapter, MSG,
1152 "tdls: enable link %pM success\n", peer);
1154 sta_ptr->tdls_status = TDLS_SETUP_COMPLETE;
1156 mcs = sta_ptr->tdls_cap.ht_capb.mcs;
1157 if (mcs.rx_mask[0] != 0xff)
1158 sta_ptr->is_11n_enabled = true;
1159 if (sta_ptr->is_11n_enabled) {
1160 if (le16_to_cpu(sta_ptr->tdls_cap.ht_capb.cap_info) &
1161 IEEE80211_HT_CAP_MAX_AMSDU)
1162 sta_ptr->max_amsdu =
1163 MWIFIEX_TX_DATA_BUF_SIZE_8K;
1165 sta_ptr->max_amsdu =
1166 MWIFIEX_TX_DATA_BUF_SIZE_4K;
1168 for (i = 0; i < MAX_NUM_TID; i++)
1169 sta_ptr->ampdu_sta[i] =
1170 priv->aggr_prio_tbl[i].ampdu_user;
1172 for (i = 0; i < MAX_NUM_TID; i++)
1173 sta_ptr->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
1175 if (sta_ptr->tdls_cap.extcap.ext_capab[3] &
1176 WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) {
1177 mwifiex_config_tdls_enable(priv);
1178 mwifiex_config_tdls_cs_params(priv);
1181 memset(sta_ptr->rx_seq, 0xff, sizeof(sta_ptr->rx_seq));
1182 mwifiex_restore_tdls_packets(priv, peer, TDLS_SETUP_COMPLETE);
1183 mwifiex_auto_tdls_update_peer_status(priv, peer,
1184 TDLS_SETUP_COMPLETE);
1186 mwifiex_dbg(priv->adapter, ERROR,
1187 "tdls: enable link %pM failed\n", peer);
1189 mwifiex_11n_cleanup_reorder_tbl(priv);
1190 spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
1192 mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
1193 spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
1195 mwifiex_del_sta_entry(priv, peer);
1197 mwifiex_restore_tdls_packets(priv, peer, TDLS_LINK_TEARDOWN);
1198 mwifiex_auto_tdls_update_peer_status(priv, peer,
1207 int mwifiex_tdls_oper(struct mwifiex_private *priv, const u8 *peer, u8 action)
1210 case MWIFIEX_TDLS_ENABLE_LINK:
1211 return mwifiex_tdls_process_enable_link(priv, peer);
1212 case MWIFIEX_TDLS_DISABLE_LINK:
1213 return mwifiex_tdls_process_disable_link(priv, peer);
1214 case MWIFIEX_TDLS_CREATE_LINK:
1215 return mwifiex_tdls_process_create_link(priv, peer);
1216 case MWIFIEX_TDLS_CONFIG_LINK:
1217 return mwifiex_tdls_process_config_link(priv, peer);
1222 int mwifiex_get_tdls_link_status(struct mwifiex_private *priv, const u8 *mac)
1224 struct mwifiex_sta_node *sta_ptr;
1226 sta_ptr = mwifiex_get_sta_entry(priv, mac);
1228 return sta_ptr->tdls_status;
1230 return TDLS_NOT_SETUP;
1233 int mwifiex_get_tdls_list(struct mwifiex_private *priv,
1234 struct tdls_peer_info *buf)
1236 struct mwifiex_sta_node *sta_ptr;
1237 struct tdls_peer_info *peer = buf;
1239 unsigned long flags;
1241 if (!ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
1244 /* make sure we are in station mode and connected */
1245 if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
1248 spin_lock_irqsave(&priv->sta_list_spinlock, flags);
1249 list_for_each_entry(sta_ptr, &priv->sta_list, list) {
1250 if (mwifiex_is_tdls_link_setup(sta_ptr->tdls_status)) {
1251 ether_addr_copy(peer->peer_addr, sta_ptr->mac_addr);
1254 if (count >= MWIFIEX_MAX_TDLS_PEER_SUPPORTED)
1258 spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
1263 void mwifiex_disable_all_tdls_links(struct mwifiex_private *priv)
1265 struct mwifiex_sta_node *sta_ptr;
1266 struct mwifiex_ds_tdls_oper tdls_oper;
1267 unsigned long flags;
1269 if (list_empty(&priv->sta_list))
1272 list_for_each_entry(sta_ptr, &priv->sta_list, list) {
1273 memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
1275 if (sta_ptr->is_11n_enabled) {
1276 mwifiex_11n_cleanup_reorder_tbl(priv);
1277 spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
1279 mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
1280 spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
1284 mwifiex_restore_tdls_packets(priv, sta_ptr->mac_addr,
1285 TDLS_LINK_TEARDOWN);
1286 memcpy(&tdls_oper.peer_mac, sta_ptr->mac_addr, ETH_ALEN);
1287 tdls_oper.tdls_action = MWIFIEX_TDLS_DISABLE_LINK;
1288 if (mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
1289 HostCmd_ACT_GEN_SET, 0, &tdls_oper, false))
1290 mwifiex_dbg(priv->adapter, ERROR,
1291 "Disable link failed for TDLS peer %pM",
1295 mwifiex_del_all_sta_list(priv);
1298 int mwifiex_tdls_check_tx(struct mwifiex_private *priv, struct sk_buff *skb)
1300 struct mwifiex_auto_tdls_peer *peer;
1301 unsigned long flags;
1304 ether_addr_copy(mac, skb->data);
1306 spin_lock_irqsave(&priv->auto_tdls_lock, flags);
1307 list_for_each_entry(peer, &priv->auto_tdls_list, list) {
1308 if (!memcmp(mac, peer->mac_addr, ETH_ALEN)) {
1309 if (peer->rssi <= MWIFIEX_TDLS_RSSI_HIGH &&
1310 peer->tdls_status == TDLS_NOT_SETUP &&
1311 (peer->failure_count <
1312 MWIFIEX_TDLS_MAX_FAIL_COUNT)) {
1313 peer->tdls_status = TDLS_SETUP_INPROGRESS;
1314 mwifiex_dbg(priv->adapter, INFO,
1315 "setup TDLS link, peer=%pM rssi=%d\n",
1316 peer->mac_addr, peer->rssi);
1318 cfg80211_tdls_oper_request(priv->netdev,
1322 peer->do_setup = false;
1323 priv->check_tdls_tx = false;
1324 } else if (peer->failure_count <
1325 MWIFIEX_TDLS_MAX_FAIL_COUNT &&
1326 peer->do_discover) {
1327 mwifiex_send_tdls_data_frame(priv,
1329 WLAN_TDLS_DISCOVERY_REQUEST,
1331 peer->do_discover = false;
1335 spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
1340 void mwifiex_flush_auto_tdls_list(struct mwifiex_private *priv)
1342 struct mwifiex_auto_tdls_peer *peer, *tmp_node;
1343 unsigned long flags;
1345 spin_lock_irqsave(&priv->auto_tdls_lock, flags);
1346 list_for_each_entry_safe(peer, tmp_node, &priv->auto_tdls_list, list) {
1347 list_del(&peer->list);
1351 INIT_LIST_HEAD(&priv->auto_tdls_list);
1352 spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
1353 priv->check_tdls_tx = false;
1356 void mwifiex_add_auto_tdls_peer(struct mwifiex_private *priv, const u8 *mac)
1358 struct mwifiex_auto_tdls_peer *tdls_peer;
1359 unsigned long flags;
1361 if (!priv->adapter->auto_tdls)
1364 spin_lock_irqsave(&priv->auto_tdls_lock, flags);
1365 list_for_each_entry(tdls_peer, &priv->auto_tdls_list, list) {
1366 if (!memcmp(tdls_peer->mac_addr, mac, ETH_ALEN)) {
1367 tdls_peer->tdls_status = TDLS_SETUP_INPROGRESS;
1368 tdls_peer->rssi_jiffies = jiffies;
1369 spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
1374 /* create new TDLS peer */
1375 tdls_peer = kzalloc(sizeof(*tdls_peer), GFP_ATOMIC);
1377 ether_addr_copy(tdls_peer->mac_addr, mac);
1378 tdls_peer->tdls_status = TDLS_SETUP_INPROGRESS;
1379 tdls_peer->rssi_jiffies = jiffies;
1380 INIT_LIST_HEAD(&tdls_peer->list);
1381 list_add_tail(&tdls_peer->list, &priv->auto_tdls_list);
1382 mwifiex_dbg(priv->adapter, INFO,
1383 "Add auto TDLS peer= %pM to list\n", mac);
1386 spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
1389 void mwifiex_auto_tdls_update_peer_status(struct mwifiex_private *priv,
1390 const u8 *mac, u8 link_status)
1392 struct mwifiex_auto_tdls_peer *peer;
1393 unsigned long flags;
1395 if (!priv->adapter->auto_tdls)
1398 spin_lock_irqsave(&priv->auto_tdls_lock, flags);
1399 list_for_each_entry(peer, &priv->auto_tdls_list, list) {
1400 if (!memcmp(peer->mac_addr, mac, ETH_ALEN)) {
1401 if ((link_status == TDLS_NOT_SETUP) &&
1402 (peer->tdls_status == TDLS_SETUP_INPROGRESS))
1403 peer->failure_count++;
1404 else if (mwifiex_is_tdls_link_setup(link_status))
1405 peer->failure_count = 0;
1407 peer->tdls_status = link_status;
1411 spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
1414 void mwifiex_auto_tdls_update_peer_signal(struct mwifiex_private *priv,
1415 u8 *mac, s8 snr, s8 nflr)
1417 struct mwifiex_auto_tdls_peer *peer;
1418 unsigned long flags;
1420 if (!priv->adapter->auto_tdls)
1423 spin_lock_irqsave(&priv->auto_tdls_lock, flags);
1424 list_for_each_entry(peer, &priv->auto_tdls_list, list) {
1425 if (!memcmp(peer->mac_addr, mac, ETH_ALEN)) {
1426 peer->rssi = nflr - snr;
1427 peer->rssi_jiffies = jiffies;
1431 spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
1434 void mwifiex_check_auto_tdls(unsigned long context)
1436 struct mwifiex_private *priv = (struct mwifiex_private *)context;
1437 struct mwifiex_auto_tdls_peer *tdls_peer;
1438 unsigned long flags;
1439 u16 reason = WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED;
1441 if (WARN_ON_ONCE(!priv || !priv->adapter)) {
1442 pr_err("mwifiex: %s: adapter or private structure is NULL\n",
1447 if (unlikely(!priv->adapter->auto_tdls))
1450 if (!priv->auto_tdls_timer_active) {
1451 mwifiex_dbg(priv->adapter, INFO,
1452 "auto TDLS timer inactive; return");
1456 priv->check_tdls_tx = false;
1458 if (list_empty(&priv->auto_tdls_list)) {
1459 mod_timer(&priv->auto_tdls_timer,
1461 msecs_to_jiffies(MWIFIEX_TIMER_10S));
1465 spin_lock_irqsave(&priv->auto_tdls_lock, flags);
1466 list_for_each_entry(tdls_peer, &priv->auto_tdls_list, list) {
1467 if ((jiffies - tdls_peer->rssi_jiffies) >
1468 (MWIFIEX_AUTO_TDLS_IDLE_TIME * HZ)) {
1469 tdls_peer->rssi = 0;
1470 tdls_peer->do_discover = true;
1471 priv->check_tdls_tx = true;
1474 if (((tdls_peer->rssi >= MWIFIEX_TDLS_RSSI_LOW) ||
1475 !tdls_peer->rssi) &&
1476 mwifiex_is_tdls_link_setup(tdls_peer->tdls_status)) {
1477 tdls_peer->tdls_status = TDLS_LINK_TEARDOWN;
1478 mwifiex_dbg(priv->adapter, MSG,
1479 "teardown TDLS link,peer=%pM rssi=%d\n",
1480 tdls_peer->mac_addr, -tdls_peer->rssi);
1481 tdls_peer->do_discover = true;
1482 priv->check_tdls_tx = true;
1483 cfg80211_tdls_oper_request(priv->netdev,
1484 tdls_peer->mac_addr,
1485 NL80211_TDLS_TEARDOWN,
1486 reason, GFP_ATOMIC);
1487 } else if (tdls_peer->rssi &&
1488 tdls_peer->rssi <= MWIFIEX_TDLS_RSSI_HIGH &&
1489 tdls_peer->tdls_status == TDLS_NOT_SETUP &&
1490 tdls_peer->failure_count <
1491 MWIFIEX_TDLS_MAX_FAIL_COUNT) {
1492 priv->check_tdls_tx = true;
1493 tdls_peer->do_setup = true;
1494 mwifiex_dbg(priv->adapter, INFO,
1495 "check TDLS with peer=%pM\t"
1496 "rssi=%d\n", tdls_peer->mac_addr,
1500 spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
1502 mod_timer(&priv->auto_tdls_timer,
1503 jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
1506 void mwifiex_setup_auto_tdls_timer(struct mwifiex_private *priv)
1508 setup_timer(&priv->auto_tdls_timer, mwifiex_check_auto_tdls,
1509 (unsigned long)priv);
1510 priv->auto_tdls_timer_active = true;
1511 mod_timer(&priv->auto_tdls_timer,
1512 jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
1515 void mwifiex_clean_auto_tdls(struct mwifiex_private *priv)
1517 if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
1518 priv->adapter->auto_tdls &&
1519 priv->bss_type == MWIFIEX_BSS_TYPE_STA) {
1520 priv->auto_tdls_timer_active = false;
1521 del_timer(&priv->auto_tdls_timer);
1522 mwifiex_flush_auto_tdls_list(priv);
1526 static int mwifiex_config_tdls(struct mwifiex_private *priv, u8 enable)
1528 struct mwifiex_tdls_config config;
1530 config.enable = cpu_to_le16(enable);
1531 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
1532 ACT_TDLS_CS_ENABLE_CONFIG, 0, &config, true);
1535 int mwifiex_config_tdls_enable(struct mwifiex_private *priv)
1537 return mwifiex_config_tdls(priv, true);
1540 int mwifiex_config_tdls_disable(struct mwifiex_private *priv)
1542 return mwifiex_config_tdls(priv, false);
1545 int mwifiex_config_tdls_cs_params(struct mwifiex_private *priv)
1547 struct mwifiex_tdls_config_cs_params config_tdls_cs_params;
1549 config_tdls_cs_params.unit_time = MWIFIEX_DEF_CS_UNIT_TIME;
1550 config_tdls_cs_params.thr_otherlink = MWIFIEX_DEF_CS_THR_OTHERLINK;
1551 config_tdls_cs_params.thr_directlink = MWIFIEX_DEF_THR_DIRECTLINK;
1553 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
1554 ACT_TDLS_CS_PARAMS, 0,
1555 &config_tdls_cs_params, true);
1558 int mwifiex_stop_tdls_cs(struct mwifiex_private *priv, const u8 *peer_mac)
1560 struct mwifiex_tdls_stop_cs_params stop_tdls_cs_params;
1562 ether_addr_copy(stop_tdls_cs_params.peer_mac, peer_mac);
1564 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
1565 ACT_TDLS_CS_STOP, 0,
1566 &stop_tdls_cs_params, true);
1569 int mwifiex_start_tdls_cs(struct mwifiex_private *priv, const u8 *peer_mac,
1570 u8 primary_chan, u8 second_chan_offset, u8 band)
1572 struct mwifiex_tdls_init_cs_params start_tdls_cs_params;
1574 ether_addr_copy(start_tdls_cs_params.peer_mac, peer_mac);
1575 start_tdls_cs_params.primary_chan = primary_chan;
1576 start_tdls_cs_params.second_chan_offset = second_chan_offset;
1577 start_tdls_cs_params.band = band;
1579 start_tdls_cs_params.switch_time = cpu_to_le16(MWIFIEX_DEF_CS_TIME);
1580 start_tdls_cs_params.switch_timeout =
1581 cpu_to_le16(MWIFIEX_DEF_CS_TIMEOUT);
1582 start_tdls_cs_params.reg_class = MWIFIEX_DEF_CS_REG_CLASS;
1583 start_tdls_cs_params.periodicity = MWIFIEX_DEF_CS_PERIODICITY;
1585 return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
1586 ACT_TDLS_CS_INIT, 0,
1587 &start_tdls_cs_params, true);