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| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2008-06-28 02:50:13 +0300 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-06-30 15:43:53 -0400 |
| commit | 23976efedd5ecb420b87455787c537eb4aed1981 (patch) | |
| tree | 902550e2716af5682de8219da1f228e13a5f0adb | |
| parent | 1bcca3c463e4930cef9986b05165bb0b3eb46f63 (diff) | |
| download | linux-stable-23976efedd5ecb420b87455787c537eb4aed1981.tar.gz linux-stable-23976efedd5ecb420b87455787c537eb4aed1981.tar.bz2 linux-stable-23976efedd5ecb420b87455787c537eb4aed1981.zip | |
mac80211: don't accept WEP keys other than WEP40 and WEP104
This patch makes mac80211 refuse a WEP key whose length is not WEP40 nor
WEP104.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
| -rw-r--r-- | include/net/mac80211.h | 9 | ||||
| -rw-r--r-- | net/mac80211/wext.c | 7 |
2 files changed, 16 insertions, 0 deletions
diff --git a/include/net/mac80211.h b/include/net/mac80211.h index dae3f9ec1154..bcd1623245cb 100644 --- a/include/net/mac80211.h +++ b/include/net/mac80211.h @@ -595,6 +595,15 @@ enum ieee80211_key_alg { ALG_CCMP, }; +/** + * enum ieee80211_key_len - key length + * @WEP40: WEP 5 byte long key + * @WEP104: WEP 13 byte long key + */ +enum ieee80211_key_len { + LEN_WEP40 = 5, + LEN_WEP104 = 13, +}; /** * enum ieee80211_key_flags - key flags diff --git a/net/mac80211/wext.c b/net/mac80211/wext.c index 6106cb79060c..e8404212ad57 100644 --- a/net/mac80211/wext.c +++ b/net/mac80211/wext.c @@ -95,6 +95,13 @@ static int ieee80211_set_encryption(struct net_device *dev, u8 *sta_addr, } } + if (alg == ALG_WEP && + key_len != LEN_WEP40 && key_len != LEN_WEP104) { + ieee80211_key_free(key); + err = -EINVAL; + goto out_unlock; + } + ieee80211_key_link(key, sdata, sta); if (set_tx_key || (!sta && !sdata->default_key && key)) |