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Commit 23976efe authored Jun 28, 2008 by Emmanuel Grumbach Committed by John W. Linville Jun 30, 2008

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>

parent 1bcca3c4

include/net/mac80211.h

+9 −0

Original line number	Diff line number	Diff line
		@@ -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

net/mac80211/wext.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -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))