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nl80211: Fix set_key regression with some drivers 

Commit dbd2fd656f added a mechanism for
user space to indicate whether a default key is being configured for
only unicast or only multicast frames instead of all frames. This
commit added a driver capability flag for indicating whether separate
default keys are supported and validation of the set_key command based
on that capability.

However, this single capability flag is not enough to cover possible
difference based on mode (AP/IBSS/STA) and the way this change was
introduced resulted in a regression with drivers that do not indicate
the new capability (i.e.., more or less any non-mac80211 driver using
cfg80211) when using a recent wpa_supplicant snapshot.

Fix the regression by removing the new check which is not strictly
speaking needed. The new separate default key functionality is needed
only for RSN IBSS which has a separate capability indication.

Cc: stable@kernel.org
Signed-off-by: Jouni Malinen <jouni.malinen@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Jouni Malinen 2011-05-03 22:45:16 -07:00 committed by John W. Linville
parent 270e58e889
commit 0e579d6a8f
1 changed files with 0 additions and 8 deletions
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8
net/wireless/nl80211.c
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@ -1682,14 +1682,6 @@ static int nl80211_set_key(struct sk_buff *skb, struct genl_info *info)
if (err)
goto out;
if (!(rdev->wiphy.flags &
WIPHY_FLAG_SUPPORTS_SEPARATE_DEFAULT_KEYS)) {
if (!key.def_uni || !key.def_multi) {
err = -EOPNOTSUPP;
goto out;
}
}
err = rdev->ops->set_default_key(&rdev->wiphy, dev, key.idx,
key.def_uni, key.def_multi);