diff options
Diffstat (limited to 'net/mac80211/wpa.c')
| -rw-r--r-- | net/mac80211/wpa.c | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 0ae23c6..4d05ad9 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -183,7 +183,8 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) u8 *pos; if (info->control.hw_key && - !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV)) { + !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_GENERATE_IV) && + !(info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)) { /* hwaccel - with no need for software-generated IV */ return 0; } @@ -204,6 +205,11 @@ static int tkip_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) memmove(pos, pos + TKIP_IV_LEN, hdrlen); pos += hdrlen; + /* the HW only needs room for the IV, but not the actual IV */ + if (info->control.hw_key && + (info->control.hw_key->flags & IEEE80211_KEY_FLAG_PUT_IV_SPACE)) + return 0; + /* Increase IV for the frame */ spin_lock_irqsave(&key->u.tkip.txlock, flags); key->u.tkip.tx.iv16++; |
