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iwlwifi: mvm: remove sta key on wep ap

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If WEP is used, no one removes the STA key upon STA
removal, leading to a situation where after 16
connect/disconnects - the AP could no longer decrypt
incoming data frames since iwl_mvm_set_fw_key_idx()
called from iwl_mvm_set_sta_key() during association
returns STA_KEY_IDX_INVALID, thus not setting the key
for that connecting STA.

Fix this by removing the key in the driver when the
STA is removed.

Signed-off-by: Liad Kaufman <liad.kaufman@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Liad Kaufman 2018-11-01 16:30:15 +02:00 committed by Luca Coelho
parent 9adcc117bc
commit 34a880d8bd
1 changed files with 10 additions and 0 deletions
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10
drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c
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@ -3091,6 +3091,16 @@ static int iwl_mvm_mac_sta_state(struct ieee80211_hw *hw,
iwl_mvm_tdls_check_trigger(mvm, vif, sta->addr,
NL80211_TDLS_DISABLE_LINK);
}
/* Remove STA key if this is an AP using WEP */
if (vif->type == NL80211_IFTYPE_AP && mvmvif->ap_wep_key) {
int rm_ret = iwl_mvm_remove_sta_key(mvm, vif, sta,
mvmvif->ap_wep_key);
if (!ret)
ret = rm_ret;
}
} else {
ret = -EIO;
}