diff options
Diffstat (limited to 'net/mac80211/wpa.c')
| -rw-r--r-- | net/mac80211/wpa.c | 16 |
1 files changed, 12 insertions, 4 deletions
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index b58722d9de37..785056cb76f6 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -1,7 +1,7 @@ /* * Copyright 2002-2004, Instant802 Networks, Inc. * Copyright 2008, Jouni Malinen <j@w1.fi> - * Copyright (C) 2016 Intel Deutschland GmbH + * Copyright (C) 2016-2017 Intel Deutschland GmbH * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License version 2 as @@ -59,8 +59,9 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx) if (info->control.hw_key && (info->flags & IEEE80211_TX_CTL_DONTFRAG || ieee80211_hw_check(&tx->local->hw, SUPPORTS_TX_FRAG)) && - !(tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_MMIC)) { - /* hwaccel - with no need for SW-generated MMIC */ + !(tx->key->conf.flags & (IEEE80211_KEY_FLAG_GENERATE_MMIC | + IEEE80211_KEY_FLAG_PUT_MIC_SPACE))) { + /* hwaccel - with no need for SW-generated MMIC or MIC space */ return TX_CONTINUE; } @@ -75,8 +76,15 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx) skb_tailroom(skb), tail)) return TX_DROP; - key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY]; mic = skb_put(skb, MICHAEL_MIC_LEN); + + if (tx->key->conf.flags & IEEE80211_KEY_FLAG_PUT_MIC_SPACE) { + /* Zeroed MIC can help with debug */ + memset(mic, 0, MICHAEL_MIC_LEN); + return TX_CONTINUE; + } + + key = &tx->key->conf.key[NL80211_TKIP_DATA_OFFSET_TX_MIC_KEY]; michael_mic(key, hdr, data, data_len, mic); if (unlikely(info->flags & IEEE80211_TX_INTFL_TKIP_MIC_FAILURE)) mic[0]++; |