summaryrefslogtreecommitdiffstats
path: root/net/mac80211/tdls.c
diff options
context:
space:
mode:
Diffstat (limited to 'net/mac80211/tdls.c')
-rw-r--r--net/mac80211/tdls.c61
1 files changed, 44 insertions, 17 deletions
diff --git a/net/mac80211/tdls.c b/net/mac80211/tdls.c
index c9eeb3f12808..1c7d45a6d93e 100644
--- a/net/mac80211/tdls.c
+++ b/net/mac80211/tdls.c
@@ -4,7 +4,7 @@
* Copyright 2006-2010 Johannes Berg <johannes@sipsolutions.net>
* Copyright 2014, Intel Corporation
* Copyright 2014 Intel Mobile Communications GmbH
- * Copyright 2015 Intel Deutschland GmbH
+ * Copyright 2015 - 2016 Intel Deutschland GmbH
*
* This file is GPLv2 as found in COPYING.
*/
@@ -15,6 +15,7 @@
#include <linux/rtnetlink.h>
#include "ieee80211_i.h"
#include "driver-ops.h"
+#include "rate.h"
/* give usermode some time for retries in setting up the TDLS session */
#define TDLS_PEER_SETUP_TIMEOUT (15 * HZ)
@@ -46,7 +47,7 @@ static void ieee80211_tdls_add_ext_capab(struct ieee80211_sub_if_data *sdata,
NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
bool wider_band = ieee80211_hw_check(&local->hw, TDLS_WIDER_BW) &&
!ifmgd->tdls_wider_bw_prohibited;
- enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
+ enum nl80211_band band = ieee80211_get_sdata_band(sdata);
struct ieee80211_supported_band *sband = local->hw.wiphy->bands[band];
bool vht = sband && sband->vht_cap.vht_supported;
u8 *pos = (void *)skb_put(skb, 10);
@@ -183,7 +184,7 @@ static u16 ieee80211_get_tdls_sta_capab(struct ieee80211_sub_if_data *sdata,
if (status_code != 0)
return 0;
- if (ieee80211_get_sdata_band(sdata) == IEEE80211_BAND_2GHZ) {
+ if (ieee80211_get_sdata_band(sdata) == NL80211_BAND_2GHZ) {
return WLAN_CAPABILITY_SHORT_SLOT_TIME |
WLAN_CAPABILITY_SHORT_PREAMBLE;
}
@@ -302,7 +303,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata,
/* IEEE802.11ac-2013 Table E-4 */
u16 centers_80mhz[] = { 5210, 5290, 5530, 5610, 5690, 5775 };
struct cfg80211_chan_def uc = sta->tdls_chandef;
- enum nl80211_chan_width max_width = ieee80211_get_sta_bw(&sta->sta);
+ enum nl80211_chan_width max_width = ieee80211_sta_cap_chan_bw(sta);
int i;
/* only support upgrading non-narrow channels up to 80Mhz */
@@ -313,7 +314,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata,
if (max_width > NL80211_CHAN_WIDTH_80)
max_width = NL80211_CHAN_WIDTH_80;
- if (uc.width == max_width)
+ if (uc.width >= max_width)
return;
/*
* Channel usage constrains in the IEEE802.11ac-2013 specification only
@@ -324,6 +325,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata,
for (i = 0; i < ARRAY_SIZE(centers_80mhz); i++)
if (abs(uc.chan->center_freq - centers_80mhz[i]) <= 30) {
uc.center_freq1 = centers_80mhz[i];
+ uc.center_freq2 = 0;
uc.width = NL80211_CHAN_WIDTH_80;
break;
}
@@ -332,7 +334,7 @@ ieee80211_tdls_chandef_vht_upgrade(struct ieee80211_sub_if_data *sdata,
return;
/* proceed to downgrade the chandef until usable or the same */
- while (uc.width > max_width &&
+ while (uc.width > max_width ||
!cfg80211_reg_can_beacon_relax(sdata->local->hw.wiphy, &uc,
sdata->wdev.iftype))
ieee80211_chandef_downgrade(&uc);
@@ -355,7 +357,7 @@ ieee80211_tdls_add_setup_start_ies(struct ieee80211_sub_if_data *sdata,
u8 action_code, bool initiator,
const u8 *extra_ies, size_t extra_ies_len)
{
- enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
+ enum nl80211_band band = ieee80211_get_sdata_band(sdata);
struct ieee80211_local *local = sdata->local;
struct ieee80211_supported_band *sband;
struct ieee80211_sta_ht_cap ht_cap;
@@ -542,7 +544,7 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata,
struct ieee80211_if_managed *ifmgd = &sdata->u.mgd;
size_t offset = 0, noffset;
struct sta_info *sta, *ap_sta;
- enum ieee80211_band band = ieee80211_get_sdata_band(sdata);
+ enum nl80211_band band = ieee80211_get_sdata_band(sdata);
u8 *pos;
mutex_lock(&local->sta_mtx);
@@ -609,7 +611,7 @@ ieee80211_tdls_add_setup_cfm_ies(struct ieee80211_sub_if_data *sdata,
ieee80211_tdls_add_link_ie(sdata, skb, peer, initiator);
/* only include VHT-operation if not on the 2.4GHz band */
- if (band != IEEE80211_BAND_2GHZ && sta->sta.vht_cap.vht_supported) {
+ if (band != NL80211_BAND_2GHZ && sta->sta.vht_cap.vht_supported) {
/*
* if both peers support WIDER_BW, we can expand the chandef to
* a wider compatible one, up to 80MHz
@@ -1242,18 +1244,44 @@ int ieee80211_tdls_mgmt(struct wiphy *wiphy, struct net_device *dev,
return ret;
}
-static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata)
+static void iee80211_tdls_recalc_chanctx(struct ieee80211_sub_if_data *sdata,
+ struct sta_info *sta)
{
struct ieee80211_local *local = sdata->local;
struct ieee80211_chanctx_conf *conf;
struct ieee80211_chanctx *ctx;
+ enum nl80211_chan_width width;
+ struct ieee80211_supported_band *sband;
mutex_lock(&local->chanctx_mtx);
conf = rcu_dereference_protected(sdata->vif.chanctx_conf,
lockdep_is_held(&local->chanctx_mtx));
if (conf) {
+ width = conf->def.width;
+ sband = local->hw.wiphy->bands[conf->def.chan->band];
ctx = container_of(conf, struct ieee80211_chanctx, conf);
ieee80211_recalc_chanctx_chantype(local, ctx);
+
+ /* if width changed and a peer is given, update its BW */
+ if (width != conf->def.width && sta &&
+ test_sta_flag(sta, WLAN_STA_TDLS_WIDER_BW)) {
+ enum ieee80211_sta_rx_bandwidth bw;
+
+ bw = ieee80211_chan_width_to_rx_bw(conf->def.width);
+ bw = min(bw, ieee80211_sta_cap_rx_bw(sta));
+ if (bw != sta->sta.bandwidth) {
+ sta->sta.bandwidth = bw;
+ rate_control_rate_update(local, sband, sta,
+ IEEE80211_RC_BW_CHANGED);
+ /*
+ * if a TDLS peer BW was updated, we need to
+ * recalc the chandef width again, to get the
+ * correct chanctx min_def
+ */
+ ieee80211_recalc_chanctx_chantype(local, ctx);
+ }
+ }
+
}
mutex_unlock(&local->chanctx_mtx);
}
@@ -1350,8 +1378,6 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
break;
}
- iee80211_tdls_recalc_chanctx(sdata);
-
mutex_lock(&local->sta_mtx);
sta = sta_info_get(sdata, peer);
if (!sta) {
@@ -1360,6 +1386,7 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
break;
}
+ iee80211_tdls_recalc_chanctx(sdata, sta);
iee80211_tdls_recalc_ht_protection(sdata, sta);
set_sta_flag(sta, WLAN_STA_TDLS_PEER_AUTH);
@@ -1390,7 +1417,7 @@ int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev,
iee80211_tdls_recalc_ht_protection(sdata, NULL);
mutex_unlock(&local->sta_mtx);
- iee80211_tdls_recalc_chanctx(sdata);
+ iee80211_tdls_recalc_chanctx(sdata, NULL);
break;
default:
ret = -ENOTSUPP;
@@ -1746,7 +1773,7 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata,
u8 target_channel, oper_class;
bool local_initiator;
struct sta_info *sta;
- enum ieee80211_band band;
+ enum nl80211_band band;
struct ieee80211_tdls_data *tf = (void *)skb->data;
struct ieee80211_rx_status *rx_status = IEEE80211_SKB_RXCB(skb);
int baselen = offsetof(typeof(*tf), u.chan_switch_req.variable);
@@ -1778,10 +1805,10 @@ ieee80211_process_tdls_channel_switch_req(struct ieee80211_sub_if_data *sdata,
if ((oper_class == 112 || oper_class == 2 || oper_class == 3 ||
oper_class == 4 || oper_class == 5 || oper_class == 6) &&
target_channel < 14)
- band = IEEE80211_BAND_5GHZ;
+ band = NL80211_BAND_5GHZ;
else
- band = target_channel < 14 ? IEEE80211_BAND_2GHZ :
- IEEE80211_BAND_5GHZ;
+ band = target_channel < 14 ? NL80211_BAND_2GHZ :
+ NL80211_BAND_5GHZ;
freq = ieee80211_channel_to_frequency(target_channel, band);
if (freq == 0) {
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-14 19:58:25 +0100