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Diffstat (limited to 'net/mac80211/cfg.c')
-rw-r--r--net/mac80211/cfg.c20
1 files changed, 20 insertions, 0 deletions
diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c
index 1d17677a0ec..119a573af14 100644
--- a/net/mac80211/cfg.c
+++ b/net/mac80211/cfg.c
@@ -713,6 +713,12 @@ static void sta_apply_parameters(struct ieee80211_local *local,
if (set & BIT(NL80211_STA_FLAG_AUTHENTICATED))
sta->flags |= WLAN_STA_AUTH;
}
+
+ if (mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) {
+ sta->flags &= ~WLAN_STA_TDLS_PEER;
+ if (set & BIT(NL80211_STA_FLAG_TDLS_PEER))
+ sta->flags |= WLAN_STA_TDLS_PEER;
+ }
spin_unlock_irqrestore(&sta->flaglock, flags);
if (params->sta_modify_mask & STATION_PARAM_APPLY_UAPSD) {
@@ -813,6 +819,12 @@ static int ieee80211_add_station(struct wiphy *wiphy, struct net_device *dev,
sta_apply_parameters(local, sta, params);
+ /* Only TDLS-supporting stations can add TDLS peers */
+ if ((sta->flags & WLAN_STA_TDLS_PEER) &&
+ !((wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS) &&
+ sdata->vif.type == NL80211_IFTYPE_STATION))
+ return -ENOTSUPP;
+
rate_control_rate_init(sta);
layer2_update = sdata->vif.type == NL80211_IFTYPE_AP_VLAN ||
@@ -865,6 +877,14 @@ static int ieee80211_change_station(struct wiphy *wiphy,
return -ENOENT;
}
+ /* The TDLS bit cannot be toggled after the STA was added */
+ if ((params->sta_flags_mask & BIT(NL80211_STA_FLAG_TDLS_PEER)) &&
+ !!(params->sta_flags_set & BIT(NL80211_STA_FLAG_TDLS_PEER)) !=
+ !!test_sta_flags(sta, WLAN_STA_TDLS_PEER)) {
+ rcu_read_unlock();
+ return -EINVAL;
+ }
+
if (params->vlan && params->vlan != sta->sdata->dev) {
vlansdata = IEEE80211_DEV_TO_SUB_IF(params->vlan);