[PATCH] mac80211: fix TKIP IV update

[powerpc.git] / net / mac80211 / wpa.c

diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c
index a07fd74..6695efb 100644 (file)
--- a/net/mac80211/wpa.c
+++ b/net/mac80211/wpa.c
@@ -175,6 +175,10 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx)
        /* remove Michael MIC from payload */
        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->u.rx.queue] = rx->u.rx.tkip_iv32;
+       rx->key->u.tkip.iv16_rx[rx->u.rx.queue] = rx->u.rx.tkip_iv16;
+
        return TXRX_CONTINUE;
 }
 
@@ -315,7 +319,9 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
        res = ieee80211_tkip_decrypt_data(rx->local->wep_rx_tfm,
                                          key, skb->data + hdrlen,
                                          skb->len - hdrlen, rx->sta->addr,
-                                         hwaccel, rx->u.rx.queue);
+                                         hwaccel, rx->u.rx.queue,
+                                         &rx->u.rx.tkip_iv32,
+                                         &rx->u.rx.tkip_iv16);
        if (res != TKIP_DECRYPT_OK || wpa_test) {
                printk(KERN_DEBUG "%s: TKIP decrypt failed for RX frame from "
                       "%s (res=%d)\n",