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mac80211: FIF_PSPOLL filter flag

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When an interface is configured in the AP mode, the mac80211
implementation doesn't inform the driver to receive PS Poll frames.
It leads to inability to communicate with power-saving stations
reliably.
The FIF_CONTROL flag isn't passed by mac80211 to
ieee80211_ops.configure_filter when an interface is in the AP mode.
And it's ok, because we don't want to receive ACK frames and other
control ones, but only PS Poll ones.

This patch introduces the FIF_PSPOLL filter flag in addition to
FIF_CONTROL, which means for the driver "pass PS Poll frames".

This flag is passed to the driver:
A) When an interface is configured in the AP mode.
B) In all cases, when the FIF_CONTROL flag was passed earlier (in
addition to it).

Signed-off-by: Igor Perminov <igor.perminov@inbox.ru>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Igor Perminov
2009-08-04 16:48:51 +04:00
committed by John W. Linville
parent e48e3a2f17
commit e3b90ca284
4 changed files with 26 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files
net/mac80211/iface.c
+16 -2
View File
@@ -220,8 +220,10 @@ static int ieee80211_open(struct net_device *dev)
local->fif_fcsfail++;
if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
local->fif_plcpfail++;
if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL) {
local->fif_control++;
local->fif_pspoll++;
}
if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
local->fif_other_bss++;
@@ -244,7 +246,14 @@ static int ieee80211_open(struct net_device *dev)
spin_unlock_bh(&local->filter_lock);
ieee80211_start_mesh(sdata);
} else if (sdata->vif.type == NL80211_IFTYPE_AP) {
local->fif_pspoll++;
spin_lock_bh(&local->filter_lock);
ieee80211_configure_filter(local);
spin_unlock_bh(&local->filter_lock);
}
changed |= ieee80211_reset_erp_info(sdata);
ieee80211_bss_info_change_notify(sdata, changed);
ieee80211_enable_keys(sdata);
@@ -388,6 +397,9 @@ static int ieee80211_stop(struct net_device *dev)
if (sdata->flags & IEEE80211_SDATA_PROMISC)
atomic_dec(&local->iff_promiscs);
if (sdata->vif.type == NL80211_IFTYPE_AP)
local->fif_pspoll--;
netif_addr_lock_bh(dev);
spin_lock_bh(&local->filter_lock);
__dev_addr_unsync(&local->mc_list, &local->mc_count,
@@ -439,8 +451,10 @@ static int ieee80211_stop(struct net_device *dev)
local->fif_fcsfail--;
if (sdata->u.mntr_flags & MONITOR_FLAG_PLCPFAIL)
local->fif_plcpfail--;
if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL)
if (sdata->u.mntr_flags & MONITOR_FLAG_CONTROL) {
local->fif_pspoll--;
local->fif_control--;
}
if (sdata->u.mntr_flags & MONITOR_FLAG_OTHER_BSS)
local->fif_other_bss--;