diff options
Diffstat (limited to 'net/mac80211/wpa.c')
| -rw-r--r-- | net/mac80211/wpa.c | 25 |
1 files changed, 14 insertions, 11 deletions
diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 70778694877b..5332014cb229 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -85,16 +85,16 @@ ieee80211_rx_h_michael_mic_verify(struct ieee80211_rx_data *rx) u8 *data, *key = NULL, key_offset; size_t data_len; unsigned int hdrlen; - struct ieee80211_hdr *hdr; u8 mic[MICHAEL_MIC_LEN]; struct sk_buff *skb = rx->skb; + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); + struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; int authenticator = 1, wpa_test = 0; /* No way to verify the MIC if the hardware stripped it */ - if (rx->status->flag & RX_FLAG_MMIC_STRIPPED) + if (status->flag & RX_FLAG_MMIC_STRIPPED) return RX_CONTINUE; - hdr = (struct ieee80211_hdr *)skb->data; if (!rx->key || rx->key->conf.alg != ALG_TKIP || !ieee80211_has_protected(hdr->frame_control) || !ieee80211_is_data_present(hdr->frame_control)) @@ -216,6 +216,7 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx) int hdrlen, res, hwaccel = 0, wpa_test = 0; struct ieee80211_key *key = rx->key; struct sk_buff *skb = rx->skb; + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); hdrlen = ieee80211_hdrlen(hdr->frame_control); @@ -225,8 +226,8 @@ ieee80211_crypto_tkip_decrypt(struct ieee80211_rx_data *rx) if (!rx->sta || skb->len - hdrlen < 12) return RX_DROP_UNUSABLE; - if (rx->status->flag & RX_FLAG_DECRYPTED) { - if (rx->status->flag & RX_FLAG_IV_STRIPPED) { + if (status->flag & RX_FLAG_DECRYPTED) { + if (status->flag & RX_FLAG_IV_STRIPPED) { /* * Hardware took care of all processing, including * replay protection, and stripped the ICV/IV so @@ -442,6 +443,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) int hdrlen; struct ieee80211_key *key = rx->key; struct sk_buff *skb = rx->skb; + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); u8 pn[CCMP_PN_LEN]; int data_len; @@ -455,8 +457,8 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) if (!rx->sta || data_len < 0) return RX_DROP_UNUSABLE; - if ((rx->status->flag & RX_FLAG_DECRYPTED) && - (rx->status->flag & RX_FLAG_IV_STRIPPED)) + if ((status->flag & RX_FLAG_DECRYPTED) && + (status->flag & RX_FLAG_IV_STRIPPED)) return RX_CONTINUE; ccmp_hdr2pn(pn, skb->data + hdrlen); @@ -466,7 +468,7 @@ ieee80211_crypto_ccmp_decrypt(struct ieee80211_rx_data *rx) return RX_DROP_UNUSABLE; } - if (!(rx->status->flag & RX_FLAG_DECRYPTED)) { + if (!(status->flag & RX_FLAG_DECRYPTED)) { /* hardware didn't decrypt/verify MIC */ ccmp_special_blocks(skb, pn, key->u.ccmp.rx_crypto_buf, 1); @@ -563,6 +565,7 @@ ieee80211_rx_result ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx) { struct sk_buff *skb = rx->skb; + struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb); struct ieee80211_key *key = rx->key; struct ieee80211_mmie *mmie; u8 aad[20], mic[8], ipn[6]; @@ -571,8 +574,8 @@ ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx) if (!ieee80211_is_mgmt(hdr->frame_control)) return RX_CONTINUE; - if ((rx->status->flag & RX_FLAG_DECRYPTED) && - (rx->status->flag & RX_FLAG_IV_STRIPPED)) + if ((status->flag & RX_FLAG_DECRYPTED) && + (status->flag & RX_FLAG_IV_STRIPPED)) return RX_CONTINUE; if (skb->len < 24 + sizeof(*mmie)) @@ -591,7 +594,7 @@ ieee80211_crypto_aes_cmac_decrypt(struct ieee80211_rx_data *rx) return RX_DROP_UNUSABLE; } - if (!(rx->status->flag & RX_FLAG_DECRYPTED)) { + if (!(status->flag & RX_FLAG_DECRYPTED)) { /* hardware didn't decrypt/verify MIC */ bip_aad(skb, aad); ieee80211_aes_cmac(key->u.aes_cmac.tfm, |