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mac80211: add a struct to hold tkip context

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Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Cc: "John W. Linville" <linville@tuxdriver.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Harvey Harrison
2008-05-14 16:26:19 -07:00
committed by John W. Linville
parent a7b6f0c555
commit b0f76b335f
5 changed files with 50 additions and 49 deletions
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16
net/mac80211/wpa.c
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@ -176,8 +176,8 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx)
skb_trim(skb, skb->len - MICHAEL_MIC_LEN);
/* update IV in key information to be able to detect replays */
rx->key->u.tkip.iv32_rx[rx->queue] = rx->tkip_iv32;
rx->key->u.tkip.iv16_rx[rx->queue] = rx->tkip_iv16;
rx->key->u.tkip.rx[rx->queue].iv32 = rx->tkip_iv32;
rx->key->u.tkip.rx[rx->queue].iv16 = rx->tkip_iv16;
return RX_CONTINUE;
}
@ -214,19 +214,19 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx,
pos += hdrlen;
/* Increase IV for the frame */
key->u.tkip.iv16++;
if (key->u.tkip.iv16 == 0)
key->u.tkip.iv32++;
key->u.tkip.tx.iv16++;
if (key->u.tkip.tx.iv16 == 0)
key->u.tkip.tx.iv32++;
if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
hdr = (struct ieee80211_hdr *)skb->data;
/* hwaccel - with preallocated room for IV */
ieee80211_tkip_add_iv(pos, key,
(u8) (key->u.tkip.iv16 >> 8),
(u8) (((key->u.tkip.iv16 >> 8) | 0x20) &
(u8) (key->u.tkip.tx.iv16 >> 8),
(u8) (((key->u.tkip.tx.iv16 >> 8) | 0x20) &
0x7f),
(u8) key->u.tkip.iv16);
(u8) key->u.tkip.tx.iv16);
tx->control->hw_key = &tx->key->conf;
return 0;