1578 lines
44 KiB
C
1578 lines
44 KiB
C
/* Marvell Wireless LAN device driver: TDLS handling
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*
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* Copyright (C) 2014, Marvell International Ltd.
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*
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* This software file (the "File") is distributed by Marvell International
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* Ltd. under the terms of the GNU General Public License Version 2, June 1991
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* (the "License"). You may use, redistribute and/or modify this File in
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* accordance with the terms and conditions of the License, a copy of which
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* is available on the worldwide web at
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* http://www.gnu.org/licenses/old-licenses/gpl-2.0.txt.
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*
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* THE FILE IS DISTRIBUTED AS-IS, WITHOUT WARRANTY OF ANY KIND, AND THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE
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* ARE EXPRESSLY DISCLAIMED. The License provides additional details about
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* this warranty disclaimer.
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*/
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#include "main.h"
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#include "wmm.h"
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#include "11n.h"
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#include "11n_rxreorder.h"
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#include "11ac.h"
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#define TDLS_REQ_FIX_LEN 6
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#define TDLS_RESP_FIX_LEN 8
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#define TDLS_CONFIRM_FIX_LEN 6
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#define MWIFIEX_TDLS_WMM_INFO_SIZE 7
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static void mwifiex_restore_tdls_packets(struct mwifiex_private *priv,
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const u8 *mac, u8 status)
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{
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struct mwifiex_ra_list_tbl *ra_list;
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struct list_head *tid_list;
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struct sk_buff *skb, *tmp;
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struct mwifiex_txinfo *tx_info;
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unsigned long flags;
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u32 tid;
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u8 tid_down;
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mwifiex_dbg(priv->adapter, DATA, "%s: %pM\n", __func__, mac);
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spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags);
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skb_queue_walk_safe(&priv->tdls_txq, skb, tmp) {
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if (!ether_addr_equal(mac, skb->data))
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continue;
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__skb_unlink(skb, &priv->tdls_txq);
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tx_info = MWIFIEX_SKB_TXCB(skb);
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tid = skb->priority;
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tid_down = mwifiex_wmm_downgrade_tid(priv, tid);
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if (mwifiex_is_tdls_link_setup(status)) {
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ra_list = mwifiex_wmm_get_queue_raptr(priv, tid, mac);
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ra_list->tdls_link = true;
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tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT;
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} else {
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tid_list = &priv->wmm.tid_tbl_ptr[tid_down].ra_list;
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ra_list = list_first_entry_or_null(tid_list,
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struct mwifiex_ra_list_tbl, list);
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tx_info->flags &= ~MWIFIEX_BUF_FLAG_TDLS_PKT;
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}
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if (!ra_list) {
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mwifiex_write_data_complete(priv->adapter, skb, 0, -1);
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continue;
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}
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skb_queue_tail(&ra_list->skb_head, skb);
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ra_list->ba_pkt_count++;
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ra_list->total_pkt_count++;
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if (atomic_read(&priv->wmm.highest_queued_prio) <
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tos_to_tid_inv[tid_down])
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atomic_set(&priv->wmm.highest_queued_prio,
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tos_to_tid_inv[tid_down]);
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atomic_inc(&priv->wmm.tx_pkts_queued);
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}
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spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags);
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return;
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}
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static void mwifiex_hold_tdls_packets(struct mwifiex_private *priv,
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const u8 *mac)
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{
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struct mwifiex_ra_list_tbl *ra_list;
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struct list_head *ra_list_head;
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struct sk_buff *skb, *tmp;
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unsigned long flags;
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int i;
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mwifiex_dbg(priv->adapter, DATA, "%s: %pM\n", __func__, mac);
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spin_lock_irqsave(&priv->wmm.ra_list_spinlock, flags);
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for (i = 0; i < MAX_NUM_TID; i++) {
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if (!list_empty(&priv->wmm.tid_tbl_ptr[i].ra_list)) {
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ra_list_head = &priv->wmm.tid_tbl_ptr[i].ra_list;
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list_for_each_entry(ra_list, ra_list_head, list) {
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skb_queue_walk_safe(&ra_list->skb_head, skb,
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tmp) {
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if (!ether_addr_equal(mac, skb->data))
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continue;
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__skb_unlink(skb, &ra_list->skb_head);
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atomic_dec(&priv->wmm.tx_pkts_queued);
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ra_list->total_pkt_count--;
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skb_queue_tail(&priv->tdls_txq, skb);
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}
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}
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}
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}
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spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock, flags);
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return;
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}
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/* This function appends rate TLV to scan config command. */
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static int
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mwifiex_tdls_append_rates_ie(struct mwifiex_private *priv,
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struct sk_buff *skb)
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{
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u8 rates[MWIFIEX_SUPPORTED_RATES], *pos;
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u16 rates_size, supp_rates_size, ext_rates_size;
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memset(rates, 0, sizeof(rates));
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rates_size = mwifiex_get_supported_rates(priv, rates);
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supp_rates_size = min_t(u16, rates_size, MWIFIEX_TDLS_SUPPORTED_RATES);
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if (skb_tailroom(skb) < rates_size + 4) {
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mwifiex_dbg(priv->adapter, ERROR,
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"Insufficient space while adding rates\n");
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return -ENOMEM;
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}
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pos = skb_put(skb, supp_rates_size + 2);
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*pos++ = WLAN_EID_SUPP_RATES;
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*pos++ = supp_rates_size;
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memcpy(pos, rates, supp_rates_size);
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if (rates_size > MWIFIEX_TDLS_SUPPORTED_RATES) {
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ext_rates_size = rates_size - MWIFIEX_TDLS_SUPPORTED_RATES;
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pos = skb_put(skb, ext_rates_size + 2);
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*pos++ = WLAN_EID_EXT_SUPP_RATES;
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*pos++ = ext_rates_size;
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memcpy(pos, rates + MWIFIEX_TDLS_SUPPORTED_RATES,
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ext_rates_size);
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}
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return 0;
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}
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static void mwifiex_tdls_add_aid(struct mwifiex_private *priv,
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struct sk_buff *skb)
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{
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struct ieee_types_assoc_rsp *assoc_rsp;
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u8 *pos;
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assoc_rsp = (struct ieee_types_assoc_rsp *)&priv->assoc_rsp_buf;
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pos = skb_put(skb, 4);
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*pos++ = WLAN_EID_AID;
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*pos++ = 2;
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memcpy(pos, &assoc_rsp->a_id, sizeof(assoc_rsp->a_id));
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return;
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}
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static int mwifiex_tdls_add_vht_capab(struct mwifiex_private *priv,
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struct sk_buff *skb)
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{
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struct ieee80211_vht_cap vht_cap;
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u8 *pos;
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pos = skb_put(skb, sizeof(struct ieee80211_vht_cap) + 2);
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*pos++ = WLAN_EID_VHT_CAPABILITY;
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*pos++ = sizeof(struct ieee80211_vht_cap);
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memset(&vht_cap, 0, sizeof(struct ieee80211_vht_cap));
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mwifiex_fill_vht_cap_tlv(priv, &vht_cap, priv->curr_bss_params.band);
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memcpy(pos, &vht_cap, sizeof(vht_cap));
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return 0;
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}
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static int
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mwifiex_tdls_add_ht_oper(struct mwifiex_private *priv, const u8 *mac,
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u8 vht_enabled, struct sk_buff *skb)
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{
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struct ieee80211_ht_operation *ht_oper;
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struct mwifiex_sta_node *sta_ptr;
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struct mwifiex_bssdescriptor *bss_desc =
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&priv->curr_bss_params.bss_descriptor;
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u8 *pos;
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sta_ptr = mwifiex_get_sta_entry(priv, mac);
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if (unlikely(!sta_ptr)) {
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mwifiex_dbg(priv->adapter, ERROR,
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"TDLS peer station not found in list\n");
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return -1;
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}
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if (!(le16_to_cpu(sta_ptr->tdls_cap.ht_capb.cap_info))) {
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mwifiex_dbg(priv->adapter, WARN,
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"TDLS peer doesn't support ht capabilities\n");
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return 0;
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}
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pos = skb_put(skb, sizeof(struct ieee80211_ht_operation) + 2);
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*pos++ = WLAN_EID_HT_OPERATION;
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*pos++ = sizeof(struct ieee80211_ht_operation);
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ht_oper = (void *)pos;
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ht_oper->primary_chan = bss_desc->channel;
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/* follow AP's channel bandwidth */
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if (ISSUPP_CHANWIDTH40(priv->adapter->hw_dot_11n_dev_cap) &&
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bss_desc->bcn_ht_cap &&
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ISALLOWED_CHANWIDTH40(bss_desc->bcn_ht_oper->ht_param))
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ht_oper->ht_param = bss_desc->bcn_ht_oper->ht_param;
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if (vht_enabled) {
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ht_oper->ht_param =
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mwifiex_get_sec_chan_offset(bss_desc->channel);
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ht_oper->ht_param |= BIT(2);
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}
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memcpy(&sta_ptr->tdls_cap.ht_oper, ht_oper,
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sizeof(struct ieee80211_ht_operation));
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return 0;
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}
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static int mwifiex_tdls_add_vht_oper(struct mwifiex_private *priv,
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const u8 *mac, struct sk_buff *skb)
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{
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struct mwifiex_bssdescriptor *bss_desc;
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struct ieee80211_vht_operation *vht_oper;
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struct ieee80211_vht_cap *vht_cap, *ap_vht_cap = NULL;
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struct mwifiex_sta_node *sta_ptr;
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struct mwifiex_adapter *adapter = priv->adapter;
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u8 supp_chwd_set, peer_supp_chwd_set;
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u8 *pos, ap_supp_chwd_set, chan_bw;
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u16 mcs_map_user, mcs_map_resp, mcs_map_result;
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u16 mcs_user, mcs_resp, nss;
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u32 usr_vht_cap_info;
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bss_desc = &priv->curr_bss_params.bss_descriptor;
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sta_ptr = mwifiex_get_sta_entry(priv, mac);
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if (unlikely(!sta_ptr)) {
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mwifiex_dbg(adapter, ERROR,
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"TDLS peer station not found in list\n");
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return -1;
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}
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if (!(le32_to_cpu(sta_ptr->tdls_cap.vhtcap.vht_cap_info))) {
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mwifiex_dbg(adapter, WARN,
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"TDLS peer doesn't support vht capabilities\n");
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return 0;
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}
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if (!mwifiex_is_bss_in_11ac_mode(priv)) {
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if (sta_ptr->tdls_cap.extcap.ext_capab[7] &
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WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) {
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mwifiex_dbg(adapter, WARN,
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"TDLS peer doesn't support wider bandwidth\n");
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return 0;
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}
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} else {
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ap_vht_cap = bss_desc->bcn_vht_cap;
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}
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pos = skb_put(skb, sizeof(struct ieee80211_vht_operation) + 2);
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*pos++ = WLAN_EID_VHT_OPERATION;
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*pos++ = sizeof(struct ieee80211_vht_operation);
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vht_oper = (struct ieee80211_vht_operation *)pos;
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if (bss_desc->bss_band & BAND_A)
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usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_a;
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else
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usr_vht_cap_info = adapter->usr_dot_11ac_dev_cap_bg;
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/* find the minimum bandwidth between AP/TDLS peers */
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vht_cap = &sta_ptr->tdls_cap.vhtcap;
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supp_chwd_set = GET_VHTCAP_CHWDSET(usr_vht_cap_info);
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peer_supp_chwd_set =
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GET_VHTCAP_CHWDSET(le32_to_cpu(vht_cap->vht_cap_info));
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supp_chwd_set = min_t(u8, supp_chwd_set, peer_supp_chwd_set);
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/* We need check AP's bandwidth when TDLS_WIDER_BANDWIDTH is off */
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if (ap_vht_cap && sta_ptr->tdls_cap.extcap.ext_capab[7] &
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WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED) {
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ap_supp_chwd_set =
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GET_VHTCAP_CHWDSET(le32_to_cpu(ap_vht_cap->vht_cap_info));
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supp_chwd_set = min_t(u8, supp_chwd_set, ap_supp_chwd_set);
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}
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switch (supp_chwd_set) {
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case IEEE80211_VHT_CHANWIDTH_80MHZ:
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vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80MHZ;
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break;
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case IEEE80211_VHT_CHANWIDTH_160MHZ:
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vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_160MHZ;
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break;
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case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
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vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_80P80MHZ;
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break;
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default:
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vht_oper->chan_width = IEEE80211_VHT_CHANWIDTH_USE_HT;
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break;
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}
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mcs_map_user = GET_DEVRXMCSMAP(adapter->usr_dot_11ac_mcs_support);
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mcs_map_resp = le16_to_cpu(vht_cap->supp_mcs.rx_mcs_map);
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mcs_map_result = 0;
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for (nss = 1; nss <= 8; nss++) {
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mcs_user = GET_VHTNSSMCS(mcs_map_user, nss);
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mcs_resp = GET_VHTNSSMCS(mcs_map_resp, nss);
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if ((mcs_user == IEEE80211_VHT_MCS_NOT_SUPPORTED) ||
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(mcs_resp == IEEE80211_VHT_MCS_NOT_SUPPORTED))
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SET_VHTNSSMCS(mcs_map_result, nss,
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IEEE80211_VHT_MCS_NOT_SUPPORTED);
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else
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SET_VHTNSSMCS(mcs_map_result, nss,
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min_t(u16, mcs_user, mcs_resp));
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}
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vht_oper->basic_mcs_set = cpu_to_le16(mcs_map_result);
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switch (vht_oper->chan_width) {
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case IEEE80211_VHT_CHANWIDTH_80MHZ:
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chan_bw = IEEE80211_VHT_CHANWIDTH_80MHZ;
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break;
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case IEEE80211_VHT_CHANWIDTH_160MHZ:
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chan_bw = IEEE80211_VHT_CHANWIDTH_160MHZ;
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break;
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case IEEE80211_VHT_CHANWIDTH_80P80MHZ:
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chan_bw = IEEE80211_VHT_CHANWIDTH_80MHZ;
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break;
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default:
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chan_bw = IEEE80211_VHT_CHANWIDTH_USE_HT;
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break;
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}
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vht_oper->center_freq_seg0_idx =
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mwifiex_get_center_freq_index(priv, BAND_AAC,
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bss_desc->channel,
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chan_bw);
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return 0;
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}
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static void mwifiex_tdls_add_ext_capab(struct mwifiex_private *priv,
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struct sk_buff *skb)
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{
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struct ieee_types_extcap *extcap;
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extcap = skb_put(skb, sizeof(struct ieee_types_extcap));
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extcap->ieee_hdr.element_id = WLAN_EID_EXT_CAPABILITY;
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extcap->ieee_hdr.len = 8;
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memset(extcap->ext_capab, 0, 8);
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extcap->ext_capab[4] |= WLAN_EXT_CAPA5_TDLS_ENABLED;
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extcap->ext_capab[3] |= WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH;
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if (priv->adapter->is_hw_11ac_capable)
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extcap->ext_capab[7] |= WLAN_EXT_CAPA8_TDLS_WIDE_BW_ENABLED;
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}
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static void mwifiex_tdls_add_qos_capab(struct sk_buff *skb)
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{
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u8 *pos = skb_put(skb, 3);
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*pos++ = WLAN_EID_QOS_CAPA;
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*pos++ = 1;
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*pos++ = MWIFIEX_TDLS_DEF_QOS_CAPAB;
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}
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static void
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mwifiex_tdls_add_wmm_param_ie(struct mwifiex_private *priv, struct sk_buff *skb)
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{
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struct ieee80211_wmm_param_ie *wmm;
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u8 ac_vi[] = {0x42, 0x43, 0x5e, 0x00};
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u8 ac_vo[] = {0x62, 0x32, 0x2f, 0x00};
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u8 ac_be[] = {0x03, 0xa4, 0x00, 0x00};
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u8 ac_bk[] = {0x27, 0xa4, 0x00, 0x00};
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wmm = skb_put_zero(skb, sizeof(*wmm));
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wmm->element_id = WLAN_EID_VENDOR_SPECIFIC;
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wmm->len = sizeof(*wmm) - 2;
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wmm->oui[0] = 0x00; /* Microsoft OUI 00:50:F2 */
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wmm->oui[1] = 0x50;
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wmm->oui[2] = 0xf2;
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wmm->oui_type = 2; /* WME */
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wmm->oui_subtype = 1; /* WME param */
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wmm->version = 1; /* WME ver */
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wmm->qos_info = 0; /* U-APSD not in use */
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/* use default WMM AC parameters for TDLS link*/
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memcpy(&wmm->ac[0], ac_be, sizeof(ac_be));
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memcpy(&wmm->ac[1], ac_bk, sizeof(ac_bk));
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memcpy(&wmm->ac[2], ac_vi, sizeof(ac_vi));
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memcpy(&wmm->ac[3], ac_vo, sizeof(ac_vo));
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}
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static void
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mwifiex_add_wmm_info_ie(struct mwifiex_private *priv, struct sk_buff *skb,
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u8 qosinfo)
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{
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u8 *buf;
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buf = skb_put(skb,
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MWIFIEX_TDLS_WMM_INFO_SIZE + sizeof(struct ieee_types_header));
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*buf++ = WLAN_EID_VENDOR_SPECIFIC;
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*buf++ = 7; /* len */
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*buf++ = 0x00; /* Microsoft OUI 00:50:F2 */
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*buf++ = 0x50;
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*buf++ = 0xf2;
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*buf++ = 2; /* WME */
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*buf++ = 0; /* WME info */
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*buf++ = 1; /* WME ver */
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*buf++ = qosinfo; /* U-APSD no in use */
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}
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static void mwifiex_tdls_add_bss_co_2040(struct sk_buff *skb)
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{
|
|
struct ieee_types_bss_co_2040 *bssco;
|
|
|
|
bssco = skb_put(skb, sizeof(struct ieee_types_bss_co_2040));
|
|
bssco->ieee_hdr.element_id = WLAN_EID_BSS_COEX_2040;
|
|
bssco->ieee_hdr.len = sizeof(struct ieee_types_bss_co_2040) -
|
|
sizeof(struct ieee_types_header);
|
|
bssco->bss_2040co = 0x01;
|
|
}
|
|
|
|
static void mwifiex_tdls_add_supported_chan(struct sk_buff *skb)
|
|
{
|
|
struct ieee_types_generic *supp_chan;
|
|
u8 chan_supp[] = {1, 11};
|
|
|
|
supp_chan = skb_put(skb,
|
|
(sizeof(struct ieee_types_header) + sizeof(chan_supp)));
|
|
supp_chan->ieee_hdr.element_id = WLAN_EID_SUPPORTED_CHANNELS;
|
|
supp_chan->ieee_hdr.len = sizeof(chan_supp);
|
|
memcpy(supp_chan->data, chan_supp, sizeof(chan_supp));
|
|
}
|
|
|
|
static void mwifiex_tdls_add_oper_class(struct sk_buff *skb)
|
|
{
|
|
struct ieee_types_generic *reg_class;
|
|
u8 rc_list[] = {1,
|
|
1, 2, 3, 4, 12, 22, 23, 24, 25, 27, 28, 29, 30, 32, 33};
|
|
reg_class = skb_put(skb,
|
|
(sizeof(struct ieee_types_header) + sizeof(rc_list)));
|
|
reg_class->ieee_hdr.element_id = WLAN_EID_SUPPORTED_REGULATORY_CLASSES;
|
|
reg_class->ieee_hdr.len = sizeof(rc_list);
|
|
memcpy(reg_class->data, rc_list, sizeof(rc_list));
|
|
}
|
|
|
|
static int mwifiex_prep_tdls_encap_data(struct mwifiex_private *priv,
|
|
const u8 *peer, u8 action_code,
|
|
u8 dialog_token,
|
|
u16 status_code, struct sk_buff *skb)
|
|
{
|
|
struct ieee80211_tdls_data *tf;
|
|
int ret;
|
|
u16 capab;
|
|
struct ieee80211_ht_cap *ht_cap;
|
|
u8 radio, *pos;
|
|
|
|
capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
|
|
|
|
tf = skb_put(skb, offsetof(struct ieee80211_tdls_data, u));
|
|
memcpy(tf->da, peer, ETH_ALEN);
|
|
memcpy(tf->sa, priv->curr_addr, ETH_ALEN);
|
|
tf->ether_type = cpu_to_be16(ETH_P_TDLS);
|
|
tf->payload_type = WLAN_TDLS_SNAP_RFTYPE;
|
|
|
|
switch (action_code) {
|
|
case WLAN_TDLS_SETUP_REQUEST:
|
|
tf->category = WLAN_CATEGORY_TDLS;
|
|
tf->action_code = WLAN_TDLS_SETUP_REQUEST;
|
|
skb_put(skb, sizeof(tf->u.setup_req));
|
|
tf->u.setup_req.dialog_token = dialog_token;
|
|
tf->u.setup_req.capability = cpu_to_le16(capab);
|
|
ret = mwifiex_tdls_append_rates_ie(priv, skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
|
|
pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
|
|
*pos++ = WLAN_EID_HT_CAPABILITY;
|
|
*pos++ = sizeof(struct ieee80211_ht_cap);
|
|
ht_cap = (void *)pos;
|
|
radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
|
|
ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
|
|
if (priv->adapter->is_hw_11ac_capable) {
|
|
ret = mwifiex_tdls_add_vht_capab(priv, skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
mwifiex_tdls_add_aid(priv, skb);
|
|
}
|
|
|
|
mwifiex_tdls_add_ext_capab(priv, skb);
|
|
mwifiex_tdls_add_bss_co_2040(skb);
|
|
mwifiex_tdls_add_supported_chan(skb);
|
|
mwifiex_tdls_add_oper_class(skb);
|
|
mwifiex_add_wmm_info_ie(priv, skb, 0);
|
|
break;
|
|
|
|
case WLAN_TDLS_SETUP_RESPONSE:
|
|
tf->category = WLAN_CATEGORY_TDLS;
|
|
tf->action_code = WLAN_TDLS_SETUP_RESPONSE;
|
|
skb_put(skb, sizeof(tf->u.setup_resp));
|
|
tf->u.setup_resp.status_code = cpu_to_le16(status_code);
|
|
tf->u.setup_resp.dialog_token = dialog_token;
|
|
tf->u.setup_resp.capability = cpu_to_le16(capab);
|
|
ret = mwifiex_tdls_append_rates_ie(priv, skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
|
|
pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
|
|
*pos++ = WLAN_EID_HT_CAPABILITY;
|
|
*pos++ = sizeof(struct ieee80211_ht_cap);
|
|
ht_cap = (void *)pos;
|
|
radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
|
|
ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
|
|
if (priv->adapter->is_hw_11ac_capable) {
|
|
ret = mwifiex_tdls_add_vht_capab(priv, skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
mwifiex_tdls_add_aid(priv, skb);
|
|
}
|
|
|
|
mwifiex_tdls_add_ext_capab(priv, skb);
|
|
mwifiex_tdls_add_bss_co_2040(skb);
|
|
mwifiex_tdls_add_supported_chan(skb);
|
|
mwifiex_tdls_add_oper_class(skb);
|
|
mwifiex_add_wmm_info_ie(priv, skb, 0);
|
|
break;
|
|
|
|
case WLAN_TDLS_SETUP_CONFIRM:
|
|
tf->category = WLAN_CATEGORY_TDLS;
|
|
tf->action_code = WLAN_TDLS_SETUP_CONFIRM;
|
|
skb_put(skb, sizeof(tf->u.setup_cfm));
|
|
tf->u.setup_cfm.status_code = cpu_to_le16(status_code);
|
|
tf->u.setup_cfm.dialog_token = dialog_token;
|
|
|
|
mwifiex_tdls_add_wmm_param_ie(priv, skb);
|
|
if (priv->adapter->is_hw_11ac_capable) {
|
|
ret = mwifiex_tdls_add_vht_oper(priv, peer, skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
ret = mwifiex_tdls_add_ht_oper(priv, peer, 1, skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
} else {
|
|
ret = mwifiex_tdls_add_ht_oper(priv, peer, 0, skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
}
|
|
break;
|
|
|
|
case WLAN_TDLS_TEARDOWN:
|
|
tf->category = WLAN_CATEGORY_TDLS;
|
|
tf->action_code = WLAN_TDLS_TEARDOWN;
|
|
skb_put(skb, sizeof(tf->u.teardown));
|
|
tf->u.teardown.reason_code = cpu_to_le16(status_code);
|
|
break;
|
|
|
|
case WLAN_TDLS_DISCOVERY_REQUEST:
|
|
tf->category = WLAN_CATEGORY_TDLS;
|
|
tf->action_code = WLAN_TDLS_DISCOVERY_REQUEST;
|
|
skb_put(skb, sizeof(tf->u.discover_req));
|
|
tf->u.discover_req.dialog_token = dialog_token;
|
|
break;
|
|
default:
|
|
mwifiex_dbg(priv->adapter, ERROR, "Unknown TDLS frame type.\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void
|
|
mwifiex_tdls_add_link_ie(struct sk_buff *skb, const u8 *src_addr,
|
|
const u8 *peer, const u8 *bssid)
|
|
{
|
|
struct ieee80211_tdls_lnkie *lnkid;
|
|
|
|
lnkid = skb_put(skb, sizeof(struct ieee80211_tdls_lnkie));
|
|
lnkid->ie_type = WLAN_EID_LINK_ID;
|
|
lnkid->ie_len = sizeof(struct ieee80211_tdls_lnkie) -
|
|
sizeof(struct ieee_types_header);
|
|
|
|
memcpy(lnkid->bssid, bssid, ETH_ALEN);
|
|
memcpy(lnkid->init_sta, src_addr, ETH_ALEN);
|
|
memcpy(lnkid->resp_sta, peer, ETH_ALEN);
|
|
}
|
|
|
|
int mwifiex_send_tdls_data_frame(struct mwifiex_private *priv, const u8 *peer,
|
|
u8 action_code, u8 dialog_token,
|
|
u16 status_code, const u8 *extra_ies,
|
|
size_t extra_ies_len)
|
|
{
|
|
struct sk_buff *skb;
|
|
struct mwifiex_txinfo *tx_info;
|
|
int ret;
|
|
u16 skb_len;
|
|
|
|
skb_len = MWIFIEX_MIN_DATA_HEADER_LEN +
|
|
max(sizeof(struct ieee80211_mgmt),
|
|
sizeof(struct ieee80211_tdls_data)) +
|
|
MWIFIEX_MGMT_FRAME_HEADER_SIZE +
|
|
MWIFIEX_SUPPORTED_RATES +
|
|
3 + /* Qos Info */
|
|
sizeof(struct ieee_types_extcap) +
|
|
sizeof(struct ieee80211_ht_cap) +
|
|
sizeof(struct ieee_types_bss_co_2040) +
|
|
sizeof(struct ieee80211_ht_operation) +
|
|
sizeof(struct ieee80211_tdls_lnkie) +
|
|
(2 * (sizeof(struct ieee_types_header))) +
|
|
MWIFIEX_SUPPORTED_CHANNELS +
|
|
MWIFIEX_OPERATING_CLASSES +
|
|
sizeof(struct ieee80211_wmm_param_ie) +
|
|
extra_ies_len;
|
|
|
|
if (priv->adapter->is_hw_11ac_capable)
|
|
skb_len += sizeof(struct ieee_types_vht_cap) +
|
|
sizeof(struct ieee_types_vht_oper) +
|
|
sizeof(struct ieee_types_aid);
|
|
|
|
skb = dev_alloc_skb(skb_len);
|
|
if (!skb) {
|
|
mwifiex_dbg(priv->adapter, ERROR,
|
|
"allocate skb failed for management frame\n");
|
|
return -ENOMEM;
|
|
}
|
|
skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
|
|
|
|
switch (action_code) {
|
|
case WLAN_TDLS_SETUP_REQUEST:
|
|
case WLAN_TDLS_SETUP_CONFIRM:
|
|
case WLAN_TDLS_TEARDOWN:
|
|
case WLAN_TDLS_DISCOVERY_REQUEST:
|
|
ret = mwifiex_prep_tdls_encap_data(priv, peer, action_code,
|
|
dialog_token, status_code,
|
|
skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
if (extra_ies_len)
|
|
skb_put_data(skb, extra_ies, extra_ies_len);
|
|
mwifiex_tdls_add_link_ie(skb, priv->curr_addr, peer,
|
|
priv->cfg_bssid);
|
|
break;
|
|
case WLAN_TDLS_SETUP_RESPONSE:
|
|
ret = mwifiex_prep_tdls_encap_data(priv, peer, action_code,
|
|
dialog_token, status_code,
|
|
skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
if (extra_ies_len)
|
|
skb_put_data(skb, extra_ies, extra_ies_len);
|
|
mwifiex_tdls_add_link_ie(skb, peer, priv->curr_addr,
|
|
priv->cfg_bssid);
|
|
break;
|
|
}
|
|
|
|
switch (action_code) {
|
|
case WLAN_TDLS_SETUP_REQUEST:
|
|
case WLAN_TDLS_SETUP_RESPONSE:
|
|
skb->priority = MWIFIEX_PRIO_BK;
|
|
break;
|
|
default:
|
|
skb->priority = MWIFIEX_PRIO_VI;
|
|
break;
|
|
}
|
|
|
|
tx_info = MWIFIEX_SKB_TXCB(skb);
|
|
memset(tx_info, 0, sizeof(*tx_info));
|
|
tx_info->bss_num = priv->bss_num;
|
|
tx_info->bss_type = priv->bss_type;
|
|
|
|
__net_timestamp(skb);
|
|
mwifiex_queue_tx_pkt(priv, skb);
|
|
|
|
/* Delay 10ms to make sure tdls setup confirm/teardown frame
|
|
* is received by peer
|
|
*/
|
|
if (action_code == WLAN_TDLS_SETUP_CONFIRM ||
|
|
action_code == WLAN_TDLS_TEARDOWN)
|
|
msleep_interruptible(10);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int
|
|
mwifiex_construct_tdls_action_frame(struct mwifiex_private *priv,
|
|
const u8 *peer,
|
|
u8 action_code, u8 dialog_token,
|
|
u16 status_code, struct sk_buff *skb)
|
|
{
|
|
struct ieee80211_mgmt *mgmt;
|
|
u8 bc_addr[] = {0xff, 0xff, 0xff, 0xff, 0xff, 0xff};
|
|
int ret;
|
|
u16 capab;
|
|
struct ieee80211_ht_cap *ht_cap;
|
|
u8 radio, *pos;
|
|
|
|
capab = priv->curr_bss_params.bss_descriptor.cap_info_bitmap;
|
|
|
|
mgmt = skb_put(skb, offsetof(struct ieee80211_mgmt, u));
|
|
|
|
memset(mgmt, 0, 24);
|
|
memcpy(mgmt->da, peer, ETH_ALEN);
|
|
memcpy(mgmt->sa, priv->curr_addr, ETH_ALEN);
|
|
memcpy(mgmt->bssid, priv->cfg_bssid, ETH_ALEN);
|
|
mgmt->frame_control = cpu_to_le16(IEEE80211_FTYPE_MGMT |
|
|
IEEE80211_STYPE_ACTION);
|
|
|
|
/* add address 4 */
|
|
pos = skb_put(skb, ETH_ALEN);
|
|
|
|
switch (action_code) {
|
|
case WLAN_PUB_ACTION_TDLS_DISCOVER_RES:
|
|
skb_put(skb, sizeof(mgmt->u.action.u.tdls_discover_resp) + 1);
|
|
mgmt->u.action.category = WLAN_CATEGORY_PUBLIC;
|
|
mgmt->u.action.u.tdls_discover_resp.action_code =
|
|
WLAN_PUB_ACTION_TDLS_DISCOVER_RES;
|
|
mgmt->u.action.u.tdls_discover_resp.dialog_token =
|
|
dialog_token;
|
|
mgmt->u.action.u.tdls_discover_resp.capability =
|
|
cpu_to_le16(capab);
|
|
/* move back for addr4 */
|
|
memmove(pos + ETH_ALEN, &mgmt->u.action.category,
|
|
sizeof(mgmt->u.action.u.tdls_discover_resp));
|
|
/* init address 4 */
|
|
memcpy(pos, bc_addr, ETH_ALEN);
|
|
|
|
ret = mwifiex_tdls_append_rates_ie(priv, skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
|
|
pos = skb_put(skb, sizeof(struct ieee80211_ht_cap) + 2);
|
|
*pos++ = WLAN_EID_HT_CAPABILITY;
|
|
*pos++ = sizeof(struct ieee80211_ht_cap);
|
|
ht_cap = (void *)pos;
|
|
radio = mwifiex_band_to_radio_type(priv->curr_bss_params.band);
|
|
ret = mwifiex_fill_cap_info(priv, radio, ht_cap);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
|
|
if (priv->adapter->is_hw_11ac_capable) {
|
|
ret = mwifiex_tdls_add_vht_capab(priv, skb);
|
|
if (ret) {
|
|
dev_kfree_skb_any(skb);
|
|
return ret;
|
|
}
|
|
mwifiex_tdls_add_aid(priv, skb);
|
|
}
|
|
|
|
mwifiex_tdls_add_ext_capab(priv, skb);
|
|
mwifiex_tdls_add_bss_co_2040(skb);
|
|
mwifiex_tdls_add_supported_chan(skb);
|
|
mwifiex_tdls_add_qos_capab(skb);
|
|
mwifiex_tdls_add_oper_class(skb);
|
|
break;
|
|
default:
|
|
mwifiex_dbg(priv->adapter, ERROR, "Unknown TDLS action frame type\n");
|
|
return -EINVAL;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mwifiex_send_tdls_action_frame(struct mwifiex_private *priv, const u8 *peer,
|
|
u8 action_code, u8 dialog_token,
|
|
u16 status_code, const u8 *extra_ies,
|
|
size_t extra_ies_len)
|
|
{
|
|
struct sk_buff *skb;
|
|
struct mwifiex_txinfo *tx_info;
|
|
u8 *pos;
|
|
u32 pkt_type, tx_control;
|
|
u16 pkt_len, skb_len;
|
|
|
|
skb_len = MWIFIEX_MIN_DATA_HEADER_LEN +
|
|
max(sizeof(struct ieee80211_mgmt),
|
|
sizeof(struct ieee80211_tdls_data)) +
|
|
MWIFIEX_MGMT_FRAME_HEADER_SIZE +
|
|
MWIFIEX_SUPPORTED_RATES +
|
|
sizeof(struct ieee_types_extcap) +
|
|
sizeof(struct ieee80211_ht_cap) +
|
|
sizeof(struct ieee_types_bss_co_2040) +
|
|
sizeof(struct ieee80211_ht_operation) +
|
|
sizeof(struct ieee80211_tdls_lnkie) +
|
|
extra_ies_len +
|
|
3 + /* Qos Info */
|
|
ETH_ALEN; /* Address4 */
|
|
|
|
if (priv->adapter->is_hw_11ac_capable)
|
|
skb_len += sizeof(struct ieee_types_vht_cap) +
|
|
sizeof(struct ieee_types_vht_oper) +
|
|
sizeof(struct ieee_types_aid);
|
|
|
|
skb = dev_alloc_skb(skb_len);
|
|
if (!skb) {
|
|
mwifiex_dbg(priv->adapter, ERROR,
|
|
"allocate skb failed for management frame\n");
|
|
return -ENOMEM;
|
|
}
|
|
|
|
skb_reserve(skb, MWIFIEX_MIN_DATA_HEADER_LEN);
|
|
|
|
pkt_type = PKT_TYPE_MGMT;
|
|
tx_control = 0;
|
|
pos = skb_put_zero(skb,
|
|
MWIFIEX_MGMT_FRAME_HEADER_SIZE + sizeof(pkt_len));
|
|
memcpy(pos, &pkt_type, sizeof(pkt_type));
|
|
memcpy(pos + sizeof(pkt_type), &tx_control, sizeof(tx_control));
|
|
|
|
if (mwifiex_construct_tdls_action_frame(priv, peer, action_code,
|
|
dialog_token, status_code,
|
|
skb)) {
|
|
dev_kfree_skb_any(skb);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (extra_ies_len)
|
|
skb_put_data(skb, extra_ies, extra_ies_len);
|
|
|
|
/* the TDLS link IE is always added last we are the responder */
|
|
|
|
mwifiex_tdls_add_link_ie(skb, peer, priv->curr_addr,
|
|
priv->cfg_bssid);
|
|
|
|
skb->priority = MWIFIEX_PRIO_VI;
|
|
|
|
tx_info = MWIFIEX_SKB_TXCB(skb);
|
|
memset(tx_info, 0, sizeof(*tx_info));
|
|
tx_info->bss_num = priv->bss_num;
|
|
tx_info->bss_type = priv->bss_type;
|
|
tx_info->flags |= MWIFIEX_BUF_FLAG_TDLS_PKT;
|
|
|
|
pkt_len = skb->len - MWIFIEX_MGMT_FRAME_HEADER_SIZE - sizeof(pkt_len);
|
|
memcpy(skb->data + MWIFIEX_MGMT_FRAME_HEADER_SIZE, &pkt_len,
|
|
sizeof(pkt_len));
|
|
__net_timestamp(skb);
|
|
mwifiex_queue_tx_pkt(priv, skb);
|
|
|
|
return 0;
|
|
}
|
|
|
|
/* This function process tdls action frame from peer.
|
|
* Peer capabilities are stored into station node structure.
|
|
*/
|
|
void mwifiex_process_tdls_action_frame(struct mwifiex_private *priv,
|
|
u8 *buf, int len)
|
|
{
|
|
struct mwifiex_sta_node *sta_ptr;
|
|
u8 *peer, *pos, *end;
|
|
u8 i, action, basic;
|
|
u16 cap = 0;
|
|
int ies_len = 0;
|
|
|
|
if (len < (sizeof(struct ethhdr) + 3))
|
|
return;
|
|
if (*(buf + sizeof(struct ethhdr)) != WLAN_TDLS_SNAP_RFTYPE)
|
|
return;
|
|
if (*(buf + sizeof(struct ethhdr) + 1) != WLAN_CATEGORY_TDLS)
|
|
return;
|
|
|
|
peer = buf + ETH_ALEN;
|
|
action = *(buf + sizeof(struct ethhdr) + 2);
|
|
mwifiex_dbg(priv->adapter, DATA,
|
|
"rx:tdls action: peer=%pM, action=%d\n", peer, action);
|
|
|
|
switch (action) {
|
|
case WLAN_TDLS_SETUP_REQUEST:
|
|
if (len < (sizeof(struct ethhdr) + TDLS_REQ_FIX_LEN))
|
|
return;
|
|
|
|
pos = buf + sizeof(struct ethhdr) + 4;
|
|
/* payload 1+ category 1 + action 1 + dialog 1 */
|
|
cap = get_unaligned_le16(pos);
|
|
ies_len = len - sizeof(struct ethhdr) - TDLS_REQ_FIX_LEN;
|
|
pos += 2;
|
|
break;
|
|
|
|
case WLAN_TDLS_SETUP_RESPONSE:
|
|
if (len < (sizeof(struct ethhdr) + TDLS_RESP_FIX_LEN))
|
|
return;
|
|
/* payload 1+ category 1 + action 1 + dialog 1 + status code 2*/
|
|
pos = buf + sizeof(struct ethhdr) + 6;
|
|
cap = get_unaligned_le16(pos);
|
|
ies_len = len - sizeof(struct ethhdr) - TDLS_RESP_FIX_LEN;
|
|
pos += 2;
|
|
break;
|
|
|
|
case WLAN_TDLS_SETUP_CONFIRM:
|
|
if (len < (sizeof(struct ethhdr) + TDLS_CONFIRM_FIX_LEN))
|
|
return;
|
|
pos = buf + sizeof(struct ethhdr) + TDLS_CONFIRM_FIX_LEN;
|
|
ies_len = len - sizeof(struct ethhdr) - TDLS_CONFIRM_FIX_LEN;
|
|
break;
|
|
default:
|
|
mwifiex_dbg(priv->adapter, ERROR, "Unknown TDLS frame type.\n");
|
|
return;
|
|
}
|
|
|
|
sta_ptr = mwifiex_add_sta_entry(priv, peer);
|
|
if (!sta_ptr)
|
|
return;
|
|
|
|
sta_ptr->tdls_cap.capab = cpu_to_le16(cap);
|
|
|
|
for (end = pos + ies_len; pos + 1 < end; pos += 2 + pos[1]) {
|
|
u8 ie_len = pos[1];
|
|
|
|
if (pos + 2 + ie_len > end)
|
|
break;
|
|
|
|
switch (*pos) {
|
|
case WLAN_EID_SUPP_RATES:
|
|
if (ie_len > sizeof(sta_ptr->tdls_cap.rates))
|
|
return;
|
|
sta_ptr->tdls_cap.rates_len = ie_len;
|
|
for (i = 0; i < ie_len; i++)
|
|
sta_ptr->tdls_cap.rates[i] = pos[i + 2];
|
|
break;
|
|
|
|
case WLAN_EID_EXT_SUPP_RATES:
|
|
if (ie_len > sizeof(sta_ptr->tdls_cap.rates))
|
|
return;
|
|
basic = sta_ptr->tdls_cap.rates_len;
|
|
if (ie_len > sizeof(sta_ptr->tdls_cap.rates) - basic)
|
|
return;
|
|
for (i = 0; i < ie_len; i++)
|
|
sta_ptr->tdls_cap.rates[basic + i] = pos[i + 2];
|
|
sta_ptr->tdls_cap.rates_len += ie_len;
|
|
break;
|
|
case WLAN_EID_HT_CAPABILITY:
|
|
if (ie_len != sizeof(struct ieee80211_ht_cap))
|
|
return;
|
|
/* copy the ie's value into ht_capb*/
|
|
memcpy((u8 *)&sta_ptr->tdls_cap.ht_capb, pos + 2,
|
|
sizeof(struct ieee80211_ht_cap));
|
|
sta_ptr->is_11n_enabled = 1;
|
|
break;
|
|
case WLAN_EID_HT_OPERATION:
|
|
if (ie_len != sizeof(struct ieee80211_ht_operation))
|
|
return;
|
|
/* copy the ie's value into ht_oper*/
|
|
memcpy(&sta_ptr->tdls_cap.ht_oper, pos + 2,
|
|
sizeof(struct ieee80211_ht_operation));
|
|
break;
|
|
case WLAN_EID_BSS_COEX_2040:
|
|
if (ie_len != sizeof(pos[2]))
|
|
return;
|
|
sta_ptr->tdls_cap.coex_2040 = pos[2];
|
|
break;
|
|
case WLAN_EID_EXT_CAPABILITY:
|
|
if (ie_len < sizeof(struct ieee_types_header))
|
|
return;
|
|
if (ie_len > 8)
|
|
return;
|
|
memcpy((u8 *)&sta_ptr->tdls_cap.extcap, pos,
|
|
sizeof(struct ieee_types_header) +
|
|
min_t(u8, ie_len, 8));
|
|
break;
|
|
case WLAN_EID_RSN:
|
|
if (ie_len < sizeof(struct ieee_types_header))
|
|
return;
|
|
if (ie_len > IEEE_MAX_IE_SIZE -
|
|
sizeof(struct ieee_types_header))
|
|
return;
|
|
memcpy((u8 *)&sta_ptr->tdls_cap.rsn_ie, pos,
|
|
sizeof(struct ieee_types_header) +
|
|
min_t(u8, ie_len, IEEE_MAX_IE_SIZE -
|
|
sizeof(struct ieee_types_header)));
|
|
break;
|
|
case WLAN_EID_QOS_CAPA:
|
|
if (ie_len != sizeof(pos[2]))
|
|
return;
|
|
sta_ptr->tdls_cap.qos_info = pos[2];
|
|
break;
|
|
case WLAN_EID_VHT_OPERATION:
|
|
if (priv->adapter->is_hw_11ac_capable) {
|
|
if (ie_len !=
|
|
sizeof(struct ieee80211_vht_operation))
|
|
return;
|
|
/* copy the ie's value into vhtoper*/
|
|
memcpy(&sta_ptr->tdls_cap.vhtoper, pos + 2,
|
|
sizeof(struct ieee80211_vht_operation));
|
|
}
|
|
break;
|
|
case WLAN_EID_VHT_CAPABILITY:
|
|
if (priv->adapter->is_hw_11ac_capable) {
|
|
if (ie_len != sizeof(struct ieee80211_vht_cap))
|
|
return;
|
|
/* copy the ie's value into vhtcap*/
|
|
memcpy((u8 *)&sta_ptr->tdls_cap.vhtcap, pos + 2,
|
|
sizeof(struct ieee80211_vht_cap));
|
|
sta_ptr->is_11ac_enabled = 1;
|
|
}
|
|
break;
|
|
case WLAN_EID_AID:
|
|
if (priv->adapter->is_hw_11ac_capable) {
|
|
if (ie_len != sizeof(u16))
|
|
return;
|
|
sta_ptr->tdls_cap.aid =
|
|
get_unaligned_le16((pos + 2));
|
|
}
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
return;
|
|
}
|
|
|
|
static int
|
|
mwifiex_tdls_process_config_link(struct mwifiex_private *priv, const u8 *peer)
|
|
{
|
|
struct mwifiex_sta_node *sta_ptr;
|
|
struct mwifiex_ds_tdls_oper tdls_oper;
|
|
|
|
memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
|
|
sta_ptr = mwifiex_get_sta_entry(priv, peer);
|
|
|
|
if (!sta_ptr || sta_ptr->tdls_status == TDLS_SETUP_FAILURE) {
|
|
mwifiex_dbg(priv->adapter, ERROR,
|
|
"link absent for peer %pM; cannot config\n", peer);
|
|
return -EINVAL;
|
|
}
|
|
|
|
memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
|
|
tdls_oper.tdls_action = MWIFIEX_TDLS_CONFIG_LINK;
|
|
return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
|
|
HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
|
|
}
|
|
|
|
static int
|
|
mwifiex_tdls_process_create_link(struct mwifiex_private *priv, const u8 *peer)
|
|
{
|
|
struct mwifiex_sta_node *sta_ptr;
|
|
struct mwifiex_ds_tdls_oper tdls_oper;
|
|
|
|
memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
|
|
sta_ptr = mwifiex_get_sta_entry(priv, peer);
|
|
|
|
if (sta_ptr && sta_ptr->tdls_status == TDLS_SETUP_INPROGRESS) {
|
|
mwifiex_dbg(priv->adapter, WARN,
|
|
"Setup already in progress for peer %pM\n", peer);
|
|
return 0;
|
|
}
|
|
|
|
sta_ptr = mwifiex_add_sta_entry(priv, peer);
|
|
if (!sta_ptr)
|
|
return -ENOMEM;
|
|
|
|
sta_ptr->tdls_status = TDLS_SETUP_INPROGRESS;
|
|
mwifiex_hold_tdls_packets(priv, peer);
|
|
memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
|
|
tdls_oper.tdls_action = MWIFIEX_TDLS_CREATE_LINK;
|
|
return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
|
|
HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
|
|
}
|
|
|
|
static int
|
|
mwifiex_tdls_process_disable_link(struct mwifiex_private *priv, const u8 *peer)
|
|
{
|
|
struct mwifiex_sta_node *sta_ptr;
|
|
struct mwifiex_ds_tdls_oper tdls_oper;
|
|
unsigned long flags;
|
|
|
|
memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
|
|
sta_ptr = mwifiex_get_sta_entry(priv, peer);
|
|
|
|
if (sta_ptr) {
|
|
if (sta_ptr->is_11n_enabled) {
|
|
mwifiex_11n_cleanup_reorder_tbl(priv);
|
|
spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
|
|
flags);
|
|
mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
|
|
spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
|
|
flags);
|
|
}
|
|
mwifiex_del_sta_entry(priv, peer);
|
|
}
|
|
|
|
mwifiex_restore_tdls_packets(priv, peer, TDLS_LINK_TEARDOWN);
|
|
mwifiex_auto_tdls_update_peer_status(priv, peer, TDLS_NOT_SETUP);
|
|
memcpy(&tdls_oper.peer_mac, peer, ETH_ALEN);
|
|
tdls_oper.tdls_action = MWIFIEX_TDLS_DISABLE_LINK;
|
|
return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
|
|
HostCmd_ACT_GEN_SET, 0, &tdls_oper, true);
|
|
}
|
|
|
|
static int
|
|
mwifiex_tdls_process_enable_link(struct mwifiex_private *priv, const u8 *peer)
|
|
{
|
|
struct mwifiex_sta_node *sta_ptr;
|
|
struct ieee80211_mcs_info mcs;
|
|
unsigned long flags;
|
|
int i;
|
|
|
|
sta_ptr = mwifiex_get_sta_entry(priv, peer);
|
|
|
|
if (sta_ptr && (sta_ptr->tdls_status != TDLS_SETUP_FAILURE)) {
|
|
mwifiex_dbg(priv->adapter, MSG,
|
|
"tdls: enable link %pM success\n", peer);
|
|
|
|
sta_ptr->tdls_status = TDLS_SETUP_COMPLETE;
|
|
|
|
mcs = sta_ptr->tdls_cap.ht_capb.mcs;
|
|
if (mcs.rx_mask[0] != 0xff)
|
|
sta_ptr->is_11n_enabled = true;
|
|
if (sta_ptr->is_11n_enabled) {
|
|
if (le16_to_cpu(sta_ptr->tdls_cap.ht_capb.cap_info) &
|
|
IEEE80211_HT_CAP_MAX_AMSDU)
|
|
sta_ptr->max_amsdu =
|
|
MWIFIEX_TX_DATA_BUF_SIZE_8K;
|
|
else
|
|
sta_ptr->max_amsdu =
|
|
MWIFIEX_TX_DATA_BUF_SIZE_4K;
|
|
|
|
for (i = 0; i < MAX_NUM_TID; i++)
|
|
sta_ptr->ampdu_sta[i] =
|
|
priv->aggr_prio_tbl[i].ampdu_user;
|
|
} else {
|
|
for (i = 0; i < MAX_NUM_TID; i++)
|
|
sta_ptr->ampdu_sta[i] = BA_STREAM_NOT_ALLOWED;
|
|
}
|
|
if (sta_ptr->tdls_cap.extcap.ext_capab[3] &
|
|
WLAN_EXT_CAPA4_TDLS_CHAN_SWITCH) {
|
|
mwifiex_config_tdls_enable(priv);
|
|
mwifiex_config_tdls_cs_params(priv);
|
|
}
|
|
|
|
memset(sta_ptr->rx_seq, 0xff, sizeof(sta_ptr->rx_seq));
|
|
mwifiex_restore_tdls_packets(priv, peer, TDLS_SETUP_COMPLETE);
|
|
mwifiex_auto_tdls_update_peer_status(priv, peer,
|
|
TDLS_SETUP_COMPLETE);
|
|
} else {
|
|
mwifiex_dbg(priv->adapter, ERROR,
|
|
"tdls: enable link %pM failed\n", peer);
|
|
if (sta_ptr) {
|
|
mwifiex_11n_cleanup_reorder_tbl(priv);
|
|
spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
|
|
flags);
|
|
mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
|
|
spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
|
|
flags);
|
|
mwifiex_del_sta_entry(priv, peer);
|
|
}
|
|
mwifiex_restore_tdls_packets(priv, peer, TDLS_LINK_TEARDOWN);
|
|
mwifiex_auto_tdls_update_peer_status(priv, peer,
|
|
TDLS_NOT_SETUP);
|
|
|
|
return -1;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
int mwifiex_tdls_oper(struct mwifiex_private *priv, const u8 *peer, u8 action)
|
|
{
|
|
switch (action) {
|
|
case MWIFIEX_TDLS_ENABLE_LINK:
|
|
return mwifiex_tdls_process_enable_link(priv, peer);
|
|
case MWIFIEX_TDLS_DISABLE_LINK:
|
|
return mwifiex_tdls_process_disable_link(priv, peer);
|
|
case MWIFIEX_TDLS_CREATE_LINK:
|
|
return mwifiex_tdls_process_create_link(priv, peer);
|
|
case MWIFIEX_TDLS_CONFIG_LINK:
|
|
return mwifiex_tdls_process_config_link(priv, peer);
|
|
}
|
|
return 0;
|
|
}
|
|
|
|
int mwifiex_get_tdls_link_status(struct mwifiex_private *priv, const u8 *mac)
|
|
{
|
|
struct mwifiex_sta_node *sta_ptr;
|
|
|
|
sta_ptr = mwifiex_get_sta_entry(priv, mac);
|
|
if (sta_ptr)
|
|
return sta_ptr->tdls_status;
|
|
|
|
return TDLS_NOT_SETUP;
|
|
}
|
|
|
|
int mwifiex_get_tdls_list(struct mwifiex_private *priv,
|
|
struct tdls_peer_info *buf)
|
|
{
|
|
struct mwifiex_sta_node *sta_ptr;
|
|
struct tdls_peer_info *peer = buf;
|
|
int count = 0;
|
|
unsigned long flags;
|
|
|
|
if (!ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info))
|
|
return 0;
|
|
|
|
/* make sure we are in station mode and connected */
|
|
if (!(priv->bss_type == MWIFIEX_BSS_TYPE_STA && priv->media_connected))
|
|
return 0;
|
|
|
|
spin_lock_irqsave(&priv->sta_list_spinlock, flags);
|
|
list_for_each_entry(sta_ptr, &priv->sta_list, list) {
|
|
if (mwifiex_is_tdls_link_setup(sta_ptr->tdls_status)) {
|
|
ether_addr_copy(peer->peer_addr, sta_ptr->mac_addr);
|
|
peer++;
|
|
count++;
|
|
if (count >= MWIFIEX_MAX_TDLS_PEER_SUPPORTED)
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&priv->sta_list_spinlock, flags);
|
|
|
|
return count;
|
|
}
|
|
|
|
void mwifiex_disable_all_tdls_links(struct mwifiex_private *priv)
|
|
{
|
|
struct mwifiex_sta_node *sta_ptr;
|
|
struct mwifiex_ds_tdls_oper tdls_oper;
|
|
unsigned long flags;
|
|
|
|
if (list_empty(&priv->sta_list))
|
|
return;
|
|
|
|
list_for_each_entry(sta_ptr, &priv->sta_list, list) {
|
|
memset(&tdls_oper, 0, sizeof(struct mwifiex_ds_tdls_oper));
|
|
|
|
if (sta_ptr->is_11n_enabled) {
|
|
mwifiex_11n_cleanup_reorder_tbl(priv);
|
|
spin_lock_irqsave(&priv->wmm.ra_list_spinlock,
|
|
flags);
|
|
mwifiex_11n_delete_all_tx_ba_stream_tbl(priv);
|
|
spin_unlock_irqrestore(&priv->wmm.ra_list_spinlock,
|
|
flags);
|
|
}
|
|
|
|
mwifiex_restore_tdls_packets(priv, sta_ptr->mac_addr,
|
|
TDLS_LINK_TEARDOWN);
|
|
memcpy(&tdls_oper.peer_mac, sta_ptr->mac_addr, ETH_ALEN);
|
|
tdls_oper.tdls_action = MWIFIEX_TDLS_DISABLE_LINK;
|
|
if (mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_OPER,
|
|
HostCmd_ACT_GEN_SET, 0, &tdls_oper, false))
|
|
mwifiex_dbg(priv->adapter, ERROR,
|
|
"Disable link failed for TDLS peer %pM",
|
|
sta_ptr->mac_addr);
|
|
}
|
|
|
|
mwifiex_del_all_sta_list(priv);
|
|
}
|
|
|
|
int mwifiex_tdls_check_tx(struct mwifiex_private *priv, struct sk_buff *skb)
|
|
{
|
|
struct mwifiex_auto_tdls_peer *peer;
|
|
unsigned long flags;
|
|
u8 mac[ETH_ALEN];
|
|
|
|
ether_addr_copy(mac, skb->data);
|
|
|
|
spin_lock_irqsave(&priv->auto_tdls_lock, flags);
|
|
list_for_each_entry(peer, &priv->auto_tdls_list, list) {
|
|
if (!memcmp(mac, peer->mac_addr, ETH_ALEN)) {
|
|
if (peer->rssi <= MWIFIEX_TDLS_RSSI_HIGH &&
|
|
peer->tdls_status == TDLS_NOT_SETUP &&
|
|
(peer->failure_count <
|
|
MWIFIEX_TDLS_MAX_FAIL_COUNT)) {
|
|
peer->tdls_status = TDLS_SETUP_INPROGRESS;
|
|
mwifiex_dbg(priv->adapter, INFO,
|
|
"setup TDLS link, peer=%pM rssi=%d\n",
|
|
peer->mac_addr, peer->rssi);
|
|
|
|
cfg80211_tdls_oper_request(priv->netdev,
|
|
peer->mac_addr,
|
|
NL80211_TDLS_SETUP,
|
|
0, GFP_ATOMIC);
|
|
peer->do_setup = false;
|
|
priv->check_tdls_tx = false;
|
|
} else if (peer->failure_count <
|
|
MWIFIEX_TDLS_MAX_FAIL_COUNT &&
|
|
peer->do_discover) {
|
|
mwifiex_send_tdls_data_frame(priv,
|
|
peer->mac_addr,
|
|
WLAN_TDLS_DISCOVERY_REQUEST,
|
|
1, 0, NULL, 0);
|
|
peer->do_discover = false;
|
|
}
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
|
|
|
|
return 0;
|
|
}
|
|
|
|
void mwifiex_flush_auto_tdls_list(struct mwifiex_private *priv)
|
|
{
|
|
struct mwifiex_auto_tdls_peer *peer, *tmp_node;
|
|
unsigned long flags;
|
|
|
|
spin_lock_irqsave(&priv->auto_tdls_lock, flags);
|
|
list_for_each_entry_safe(peer, tmp_node, &priv->auto_tdls_list, list) {
|
|
list_del(&peer->list);
|
|
kfree(peer);
|
|
}
|
|
|
|
INIT_LIST_HEAD(&priv->auto_tdls_list);
|
|
spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
|
|
priv->check_tdls_tx = false;
|
|
}
|
|
|
|
void mwifiex_add_auto_tdls_peer(struct mwifiex_private *priv, const u8 *mac)
|
|
{
|
|
struct mwifiex_auto_tdls_peer *tdls_peer;
|
|
unsigned long flags;
|
|
|
|
if (!priv->adapter->auto_tdls)
|
|
return;
|
|
|
|
spin_lock_irqsave(&priv->auto_tdls_lock, flags);
|
|
list_for_each_entry(tdls_peer, &priv->auto_tdls_list, list) {
|
|
if (!memcmp(tdls_peer->mac_addr, mac, ETH_ALEN)) {
|
|
tdls_peer->tdls_status = TDLS_SETUP_INPROGRESS;
|
|
tdls_peer->rssi_jiffies = jiffies;
|
|
spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
|
|
return;
|
|
}
|
|
}
|
|
|
|
/* create new TDLS peer */
|
|
tdls_peer = kzalloc(sizeof(*tdls_peer), GFP_ATOMIC);
|
|
if (tdls_peer) {
|
|
ether_addr_copy(tdls_peer->mac_addr, mac);
|
|
tdls_peer->tdls_status = TDLS_SETUP_INPROGRESS;
|
|
tdls_peer->rssi_jiffies = jiffies;
|
|
INIT_LIST_HEAD(&tdls_peer->list);
|
|
list_add_tail(&tdls_peer->list, &priv->auto_tdls_list);
|
|
mwifiex_dbg(priv->adapter, INFO,
|
|
"Add auto TDLS peer= %pM to list\n", mac);
|
|
}
|
|
|
|
spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
|
|
}
|
|
|
|
void mwifiex_auto_tdls_update_peer_status(struct mwifiex_private *priv,
|
|
const u8 *mac, u8 link_status)
|
|
{
|
|
struct mwifiex_auto_tdls_peer *peer;
|
|
unsigned long flags;
|
|
|
|
if (!priv->adapter->auto_tdls)
|
|
return;
|
|
|
|
spin_lock_irqsave(&priv->auto_tdls_lock, flags);
|
|
list_for_each_entry(peer, &priv->auto_tdls_list, list) {
|
|
if (!memcmp(peer->mac_addr, mac, ETH_ALEN)) {
|
|
if ((link_status == TDLS_NOT_SETUP) &&
|
|
(peer->tdls_status == TDLS_SETUP_INPROGRESS))
|
|
peer->failure_count++;
|
|
else if (mwifiex_is_tdls_link_setup(link_status))
|
|
peer->failure_count = 0;
|
|
|
|
peer->tdls_status = link_status;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
|
|
}
|
|
|
|
void mwifiex_auto_tdls_update_peer_signal(struct mwifiex_private *priv,
|
|
u8 *mac, s8 snr, s8 nflr)
|
|
{
|
|
struct mwifiex_auto_tdls_peer *peer;
|
|
unsigned long flags;
|
|
|
|
if (!priv->adapter->auto_tdls)
|
|
return;
|
|
|
|
spin_lock_irqsave(&priv->auto_tdls_lock, flags);
|
|
list_for_each_entry(peer, &priv->auto_tdls_list, list) {
|
|
if (!memcmp(peer->mac_addr, mac, ETH_ALEN)) {
|
|
peer->rssi = nflr - snr;
|
|
peer->rssi_jiffies = jiffies;
|
|
break;
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
|
|
}
|
|
|
|
void mwifiex_check_auto_tdls(struct timer_list *t)
|
|
{
|
|
struct mwifiex_private *priv = from_timer(priv, t, auto_tdls_timer);
|
|
struct mwifiex_auto_tdls_peer *tdls_peer;
|
|
unsigned long flags;
|
|
u16 reason = WLAN_REASON_TDLS_TEARDOWN_UNSPECIFIED;
|
|
|
|
if (WARN_ON_ONCE(!priv || !priv->adapter)) {
|
|
pr_err("mwifiex: %s: adapter or private structure is NULL\n",
|
|
__func__);
|
|
return;
|
|
}
|
|
|
|
if (unlikely(!priv->adapter->auto_tdls))
|
|
return;
|
|
|
|
if (!priv->auto_tdls_timer_active) {
|
|
mwifiex_dbg(priv->adapter, INFO,
|
|
"auto TDLS timer inactive; return");
|
|
return;
|
|
}
|
|
|
|
priv->check_tdls_tx = false;
|
|
|
|
spin_lock_irqsave(&priv->auto_tdls_lock, flags);
|
|
list_for_each_entry(tdls_peer, &priv->auto_tdls_list, list) {
|
|
if ((jiffies - tdls_peer->rssi_jiffies) >
|
|
(MWIFIEX_AUTO_TDLS_IDLE_TIME * HZ)) {
|
|
tdls_peer->rssi = 0;
|
|
tdls_peer->do_discover = true;
|
|
priv->check_tdls_tx = true;
|
|
}
|
|
|
|
if (((tdls_peer->rssi >= MWIFIEX_TDLS_RSSI_LOW) ||
|
|
!tdls_peer->rssi) &&
|
|
mwifiex_is_tdls_link_setup(tdls_peer->tdls_status)) {
|
|
tdls_peer->tdls_status = TDLS_LINK_TEARDOWN;
|
|
mwifiex_dbg(priv->adapter, MSG,
|
|
"teardown TDLS link,peer=%pM rssi=%d\n",
|
|
tdls_peer->mac_addr, -tdls_peer->rssi);
|
|
tdls_peer->do_discover = true;
|
|
priv->check_tdls_tx = true;
|
|
cfg80211_tdls_oper_request(priv->netdev,
|
|
tdls_peer->mac_addr,
|
|
NL80211_TDLS_TEARDOWN,
|
|
reason, GFP_ATOMIC);
|
|
} else if (tdls_peer->rssi &&
|
|
tdls_peer->rssi <= MWIFIEX_TDLS_RSSI_HIGH &&
|
|
tdls_peer->tdls_status == TDLS_NOT_SETUP &&
|
|
tdls_peer->failure_count <
|
|
MWIFIEX_TDLS_MAX_FAIL_COUNT) {
|
|
priv->check_tdls_tx = true;
|
|
tdls_peer->do_setup = true;
|
|
mwifiex_dbg(priv->adapter, INFO,
|
|
"check TDLS with peer=%pM\t"
|
|
"rssi=%d\n", tdls_peer->mac_addr,
|
|
tdls_peer->rssi);
|
|
}
|
|
}
|
|
spin_unlock_irqrestore(&priv->auto_tdls_lock, flags);
|
|
|
|
mod_timer(&priv->auto_tdls_timer,
|
|
jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
|
|
}
|
|
|
|
void mwifiex_setup_auto_tdls_timer(struct mwifiex_private *priv)
|
|
{
|
|
timer_setup(&priv->auto_tdls_timer, mwifiex_check_auto_tdls, 0);
|
|
priv->auto_tdls_timer_active = true;
|
|
mod_timer(&priv->auto_tdls_timer,
|
|
jiffies + msecs_to_jiffies(MWIFIEX_TIMER_10S));
|
|
}
|
|
|
|
void mwifiex_clean_auto_tdls(struct mwifiex_private *priv)
|
|
{
|
|
if (ISSUPP_TDLS_ENABLED(priv->adapter->fw_cap_info) &&
|
|
priv->adapter->auto_tdls &&
|
|
priv->bss_type == MWIFIEX_BSS_TYPE_STA) {
|
|
priv->auto_tdls_timer_active = false;
|
|
del_timer(&priv->auto_tdls_timer);
|
|
mwifiex_flush_auto_tdls_list(priv);
|
|
}
|
|
}
|
|
|
|
static int mwifiex_config_tdls(struct mwifiex_private *priv, u8 enable)
|
|
{
|
|
struct mwifiex_tdls_config config;
|
|
|
|
config.enable = cpu_to_le16(enable);
|
|
return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
|
|
ACT_TDLS_CS_ENABLE_CONFIG, 0, &config, true);
|
|
}
|
|
|
|
int mwifiex_config_tdls_enable(struct mwifiex_private *priv)
|
|
{
|
|
return mwifiex_config_tdls(priv, true);
|
|
}
|
|
|
|
int mwifiex_config_tdls_disable(struct mwifiex_private *priv)
|
|
{
|
|
return mwifiex_config_tdls(priv, false);
|
|
}
|
|
|
|
int mwifiex_config_tdls_cs_params(struct mwifiex_private *priv)
|
|
{
|
|
struct mwifiex_tdls_config_cs_params config_tdls_cs_params;
|
|
|
|
config_tdls_cs_params.unit_time = MWIFIEX_DEF_CS_UNIT_TIME;
|
|
config_tdls_cs_params.thr_otherlink = MWIFIEX_DEF_CS_THR_OTHERLINK;
|
|
config_tdls_cs_params.thr_directlink = MWIFIEX_DEF_THR_DIRECTLINK;
|
|
|
|
return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
|
|
ACT_TDLS_CS_PARAMS, 0,
|
|
&config_tdls_cs_params, true);
|
|
}
|
|
|
|
int mwifiex_stop_tdls_cs(struct mwifiex_private *priv, const u8 *peer_mac)
|
|
{
|
|
struct mwifiex_tdls_stop_cs_params stop_tdls_cs_params;
|
|
|
|
ether_addr_copy(stop_tdls_cs_params.peer_mac, peer_mac);
|
|
|
|
return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
|
|
ACT_TDLS_CS_STOP, 0,
|
|
&stop_tdls_cs_params, true);
|
|
}
|
|
|
|
int mwifiex_start_tdls_cs(struct mwifiex_private *priv, const u8 *peer_mac,
|
|
u8 primary_chan, u8 second_chan_offset, u8 band)
|
|
{
|
|
struct mwifiex_tdls_init_cs_params start_tdls_cs_params;
|
|
|
|
ether_addr_copy(start_tdls_cs_params.peer_mac, peer_mac);
|
|
start_tdls_cs_params.primary_chan = primary_chan;
|
|
start_tdls_cs_params.second_chan_offset = second_chan_offset;
|
|
start_tdls_cs_params.band = band;
|
|
|
|
start_tdls_cs_params.switch_time = cpu_to_le16(MWIFIEX_DEF_CS_TIME);
|
|
start_tdls_cs_params.switch_timeout =
|
|
cpu_to_le16(MWIFIEX_DEF_CS_TIMEOUT);
|
|
start_tdls_cs_params.reg_class = MWIFIEX_DEF_CS_REG_CLASS;
|
|
start_tdls_cs_params.periodicity = MWIFIEX_DEF_CS_PERIODICITY;
|
|
|
|
return mwifiex_send_cmd(priv, HostCmd_CMD_TDLS_CONFIG,
|
|
ACT_TDLS_CS_INIT, 0,
|
|
&start_tdls_cs_params, true);
|
|
}
|