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| author | Zhu Yi <yi.zhu@intel.com> | 2007-11-22 11:10:22 +0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2007-11-29 18:08:47 -0500 |
| commit | a10605e599a7873417043fe2bb559abe719f8a1a (patch) | |
| tree | 03447d2c1c0834289d6570e95445043630090615 /net/mac80211 | |
| parent | d9f8bcbf67a0ee67c8cb0734f003dfe916bb5248 (diff) | |
| download | linux-a10605e599a7873417043fe2bb559abe719f8a1a.tar.gz linux-a10605e599a7873417043fe2bb559abe719f8a1a.tar.bz2 linux-a10605e599a7873417043fe2bb559abe719f8a1a.zip | |
mac80211: free ifsta->extra_ie and clear IEEE80211_STA_PRIVACY_INVOKED
I'm not sure if this is best choice, someone might have better
solutions. But this patch fixed the connection problem when switching
from a WPA enabled AP (using wpa_supplicant) to an open AP (using
iwconfig). The root cause is when we connect to a WPA enabled AP,
wpa_supplicant sets the ifsta->extra_ie thru SIOCSIWGENIE. But if we
stop wpa_supplicant and connect to an open AP with iwconfig, there is
no way to clear the extra_ie so that mac80211 keeps connecting with that.
Someone could argue wpa_supplicant should clear the extra_ie during
its shutdown. But mac80211 should also handle the unexpected shutdown
case (ie. killall -9 wpa_supplicant).
On Wed, 2007-11-21 at 16:19 +0100, Johannes Berg wrote:
> Yeah. Can you amend the patch to also clear the
> IEEE80211_STA_PRIVACY_INVOKED flag?
Signed-off-by: Zhu Yi <yi.zhu@intel.com>
Acked-by: Johannes Berg <johannes@sipsolutions.net>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'net/mac80211')
| -rw-r--r-- | net/mac80211/ieee80211.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/net/mac80211/ieee80211.c b/net/mac80211/ieee80211.c index e0ee65a969bc..8f11c97f13d2 100644 --- a/net/mac80211/ieee80211.c +++ b/net/mac80211/ieee80211.c @@ -334,6 +334,11 @@ static int ieee80211_stop(struct net_device *dev) cancel_delayed_work(&local->scan_work); } flush_workqueue(local->hw.workqueue); + + sdata->u.sta.flags &= ~IEEE80211_STA_PRIVACY_INVOKED; + kfree(sdata->u.sta.extra_ie); + sdata->u.sta.extra_ie = NULL; + sdata->u.sta.extra_ie_len = 0; /* fall through */ default: conf.if_id = dev->ifindex; |