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cfg80211: reduce connect key caching struct size

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After the previous patches, connect keys can only (correctly)
be used for storing static WEP keys. Therefore, remove all the
data for dealing with key index 4/5 and reduce the size of the
key material to the maximum for WEP keys.

Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Johannes Berg
2016-09-13 16:39:38 +02:00
parent e9c8f8d3a4
commit 89b706fb28
6 changed files with 10 additions and 17 deletions
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6
net/wireless/wext-compat.c
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@@ -408,10 +408,10 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
if (!wdev->wext.keys) {
wdev->wext.keys = kzalloc(sizeof(*wdev->wext.keys),
GFP_KERNEL);
GFP_KERNEL);
if (!wdev->wext.keys)
return -ENOMEM;
for (i = 0; i < 6; i++)
for (i = 0; i < 4; i++)
wdev->wext.keys->params[i].key =
wdev->wext.keys->data[i];
}
@@ -460,7 +460,7 @@ static int __cfg80211_set_encryption(struct cfg80211_registered_device *rdev,
if (err == -ENOENT)
err = 0;
if (!err) {
if (!addr) {
if (!addr && idx < 4) {
memset(wdev->wext.keys->data[idx], 0,
sizeof(wdev->wext.keys->data[idx]));
wdev->wext.keys->params[idx].key_len = 0;