diff options
| -rw-r--r-- | net/mac80211/wpa.c | 21 |
1 files changed, 8 insertions, 13 deletions
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 241c932d3b6..ec2ae86d64a 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -28,19 +28,16 @@ ieee80211_tx_h_michael_mic_add(struct ieee80211_tx_data *tx) size_t data_len; unsigned int hdrlen; struct ieee80211_hdr *hdr; - u16 fc; struct sk_buff *skb = tx->skb; int authenticator; int wpa_test = 0; int tail; - fc = tx->fc; - + hdr = (struct ieee80211_hdr *)skb->data; if (!tx->key || tx->key->conf.alg != ALG_TKIP || skb->len < 24 || - !WLAN_FC_DATA_PRESENT(fc)) + !ieee80211_is_data_present(hdr->frame_control)) return TX_CONTINUE; - hdr = (struct ieee80211_hdr *)skb->data; hdrlen = ieee80211_hdrlen(hdr->frame_control); if (skb->len < hdrlen) return TX_DROP; @@ -90,25 +87,23 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) size_t data_len; unsigned int hdrlen; struct ieee80211_hdr *hdr; - u16 fc; u8 mic[MICHAEL_MIC_LEN]; struct sk_buff *skb = rx->skb; int authenticator = 1, wpa_test = 0; DECLARE_MAC_BUF(mac); - fc = rx->fc; - /* * No way to verify the MIC if the hardware stripped it */ if (rx->status->flag & RX_FLAG_MMIC_STRIPPED) return RX_CONTINUE; + hdr = (struct ieee80211_hdr *)skb->data; if (!rx->key || rx->key->conf.alg != ALG_TKIP || - !(rx->fc & IEEE80211_FCTL_PROTECTED) || !WLAN_FC_DATA_PRESENT(fc)) + !ieee80211_has_protected(hdr->frame_control) || + !ieee80211_is_data_present(hdr->frame_control)) return RX_CONTINUE; - hdr = (struct ieee80211_hdr *)skb->data; hdrlen = ieee80211_hdrlen(hdr->frame_control); if (skb->len < hdrlen + MICHAEL_MIC_LEN) return RX_DROP_UNUSABLE; @@ -239,7 +234,7 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx) hdrlen = ieee80211_hdrlen(hdr->frame_control); - if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) + if (!ieee80211_is_data(hdr->frame_control)) return RX_CONTINUE; if (!rx->sta || skb->len - hdrlen < 12) @@ -458,7 +453,7 @@ ieee80211_crypto_ccmp_encrypt(struct ieee80211_tx_data *tx) ieee80211_rx_result ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) { - struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data; + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)rx->skb->data; int hdrlen; struct ieee80211_key *key = rx->key; struct sk_buff *skb = rx->skb; @@ -468,7 +463,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) hdrlen = ieee80211_hdrlen(hdr->frame_control); - if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA) + if (!ieee80211_is_data(hdr->frame_control)) return RX_CONTINUE; data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN; |