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nl80211/mac80211: allow adding TDLS peers as stations

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When adding a TDLS peer STA, mark it with a new flag in both nl80211 and
mac80211. Before adding a peer, make sure the wiphy supports TDLS and
our operating mode is appropriate (managed).

In addition, make sure all peers are removed on disassociation.

A TDLS peer is first added just before link setup is initiated. In later
setup stages we have more info about peer supported rates, capabilities,
etc. This info is reported via nl80211_set_station().

Signed-off-by: Arik Nemtsov <arik@wizery.com>
Cc: Kalyan C Gaddam <chakkal@iit.edu>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arik Nemtsov
2011-09-28 14:12:53 +03:00
committed by John W. Linville
parent dfe018bf99
commit 07ba55d7f1
5 changed files with 50 additions and 7 deletions
Download Patch File Download Diff File Expand all files Collapse all files

20
net/mac80211/cfg.c
View File

@@ -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);