diff options
| -rw-r--r-- | net/mac80211/tx.c | 39 | ||||
| -rw-r--r-- | net/mac80211/wep.c | 10 | ||||
| -rw-r--r-- | net/mac80211/wpa.c | 14 |
3 files changed, 22 insertions, 41 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index f7aff2e97ee..8302c70da9a 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -438,11 +438,7 @@ static ieee80211_txrx_result ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx) { struct ieee80211_key *key; - const struct ieee80211_hdr *hdr; - u16 fc; - - hdr = (const struct ieee80211_hdr *) tx->skb->data; - fc = le16_to_cpu(hdr->frame_control); + u16 fc = tx->fc; if (unlikely(tx->u.tx.control->flags & IEEE80211_TXCTL_DO_NOT_ENCRYPT)) tx->key = NULL; @@ -455,16 +451,34 @@ ieee80211_tx_h_select_key(struct ieee80211_txrx_data *tx) !(tx->flags & IEEE80211_TXRXD_TX_INJECTED)) { I802_DEBUG_INC(tx->local->tx_handlers_drop_unencrypted); return TXRX_DROP; - } else { + } else tx->key = NULL; - tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; - } if (tx->key) { + u16 ftype, stype; + tx->key->tx_rx_count++; /* TODO: add threshold stuff again */ + + switch (tx->key->conf.alg) { + case ALG_WEP: + ftype = fc & IEEE80211_FCTL_FTYPE; + stype = fc & IEEE80211_FCTL_STYPE; + + if (ftype == IEEE80211_FTYPE_MGMT && + stype == IEEE80211_STYPE_AUTH) + break; + case ALG_TKIP: + case ALG_CCMP: + if (!WLAN_FC_DATA_PRESENT(fc)) + tx->key = NULL; + break; + } } + if (!tx->key || !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) + tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; + return TXRX_CONTINUE; } @@ -706,15 +720,6 @@ ieee80211_tx_h_misc(struct ieee80211_txrx_data *tx) } } - /* - * Tell hardware to not encrypt when we had sw crypto. - * Because we use the same flag to internally indicate that - * no (software) encryption should be done, we have to set it - * after all crypto handlers. - */ - if (tx->key && !(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) - tx->u.tx.control->flags |= IEEE80211_TXCTL_DO_NOT_ENCRYPT; - return TXRX_CONTINUE; } diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index b5f3413403b..a0cff72a580 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -349,16 +349,6 @@ static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb) ieee80211_txrx_result ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - u16 fc; - - fc = le16_to_cpu(hdr->frame_control); - - if (((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA && - ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT || - (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH))) - return TXRX_CONTINUE; - tx->u.tx.control->iv_len = WEP_IV_LEN; tx->u.tx.control->icv_len = WEP_ICV_LEN; ieee80211_tx_set_iswep(tx); diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 20cec1cb956..6f04311cf0a 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -245,16 +245,9 @@ static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx, ieee80211_txrx_result ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - u16 fc; struct sk_buff *skb = tx->skb; int wpa_test = 0, test = 0; - fc = le16_to_cpu(hdr->frame_control); - - if (!WLAN_FC_DATA_PRESENT(fc)) - return TXRX_CONTINUE; - tx->u.tx.control->icv_len = TKIP_ICV_LEN; tx->u.tx.control->iv_len = TKIP_IV_LEN; ieee80211_tx_set_iswep(tx); @@ -501,16 +494,9 @@ static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx, ieee80211_txrx_result ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data; - u16 fc; struct sk_buff *skb = tx->skb; int test = 0; - fc = le16_to_cpu(hdr->frame_control); - - if (!WLAN_FC_DATA_PRESENT(fc)) - return TXRX_CONTINUE; - tx->u.tx.control->icv_len = CCMP_MIC_LEN; tx->u.tx.control->iv_len = CCMP_HDR_LEN; ieee80211_tx_set_iswep(tx); |