D58854.diff
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	diff --git a/sys/net80211/ieee80211_crypto.c b/sys/net80211/ieee80211_crypto.c
	--- a/sys/net80211/ieee80211_crypto.c
	+++ b/sys/net80211/ieee80211_crypto.c
	@@ -674,6 +674,24 @@
	struct ieee80211vap *vap = ni->ni_vap;
	struct ieee80211_frame *wh;

	+ /*
	+ * Explicitly check whether we're doing WEP and allow
	+ * the use of the default TX key.
	+ */
	+ if ((ni->ni_authmode == IEEE80211_AUTH_OPEN) &&
	+ ((vap->iv_flags & IEEE80211_F_PRIVACY) != 0) &&
	+ (vap->iv_def_txkey != IEEE80211_KEYIX_NONE)) {
	+ struct ieee80211_key *k;
	+ /*
	+ * Check to see if the TX key is a WEP cipher key.
	+ * Only allow transmit using it here if it's
	+ * a WEP key.
	+ */
	+ k = &vap->iv_nw_keys[vap->iv_def_txkey];
	+ if (k->wk_cipher->ic_cipher == IEEE80211_CIPHER_WEP)
	+ return (k);
	+ }
	+
	/*
	* Multicast traffic always uses the multicast key.
	*