From 941c93cd039852b7ab02c74f4698c99d82bd6cfe Mon Sep 17 00:00:00 2001 From: Arik Nemtsov Date: Wed, 28 Sep 2011 14:12:54 +0300 Subject: mac80211: data path modification for TDLS peers Mark the STA entries of enabled TDLS peers with a new "peer authorized" flag. During link setup, allow special TDLS setup frames through the AP, but otherwise drop all packets destined to the peer. This is required by the TDLS (802.11z) specification in order to prevent reordering of MSDUs between the AP and direct paths. When setup completes and the peer is authorized, send data directly, bypassing the AP. In the Rx path, allow data to be received directly from TDLS peers. Signed-off-by: Arik Nemtsov Cc: Kalyan C Gaddam Signed-off-by: John W. Linville --- net/mac80211/cfg.c | 10 ++++++++++ 1 file changed, 10 insertions(+) (limited to 'net/mac80211/cfg.c') diff --git a/net/mac80211/cfg.c b/net/mac80211/cfg.c index 119a573af14b..bdf9852eec5b 100644 --- a/net/mac80211/cfg.c +++ b/net/mac80211/cfg.c @@ -2427,6 +2427,7 @@ fail: static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, u8 *peer, enum nl80211_tdls_operation oper) { + struct sta_info *sta; struct ieee80211_sub_if_data *sdata = IEEE80211_DEV_TO_SUB_IF(dev); if (!(wiphy->flags & WIPHY_FLAG_SUPPORTS_TDLS)) @@ -2441,6 +2442,15 @@ static int ieee80211_tdls_oper(struct wiphy *wiphy, struct net_device *dev, switch (oper) { case NL80211_TDLS_ENABLE_LINK: + rcu_read_lock(); + sta = sta_info_get(sdata, peer); + if (!sta) { + rcu_read_unlock(); + return -ENOLINK; + } + + set_sta_flags(sta, WLAN_STA_TDLS_PEER_AUTH); + rcu_read_unlock(); break; case NL80211_TDLS_DISABLE_LINK: return sta_info_destroy_addr(sdata, peer); -- cgit v1.2.2