u8 mic[MICHAEL_MIC_LEN];
struct sk_buff *skb = rx->skb;
int authenticator = 1, wpa_test = 0;
+ DECLARE_MAC_BUF(mac);
fc = rx->fc;
return TXRX_DROP;
printk(KERN_DEBUG "%s: invalid Michael MIC in data frame from "
- MAC_FMT "\n", rx->dev->name, MAC_ARG(sa));
+ "%s\n", rx->dev->name, print_mac(mac, sa));
mac80211_ev_michael_mic_failure(rx->dev, rx->key->conf.keyidx,
(void *) skb->data);
/* 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;
}
key->u.tkip.iv32++;
if (tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE) {
- u32 flags = tx->local->hw.flags;
hdr = (struct ieee80211_hdr *)skb->data;
/* hwaccel - with preallocated room for IV */
0x7f),
(u8) key->u.tkip.iv16);
- if (flags & IEEE80211_HW_TKIP_REQ_PHASE2_KEY)
- ieee80211_tkip_gen_rc4key(key, hdr->addr2,
- tx->u.tx.control->tkip_key);
- else if (flags & IEEE80211_HW_TKIP_REQ_PHASE1_KEY) {
- if (key->u.tkip.iv16 == 0 ||
- !key->u.tkip.tx_initialized) {
- ieee80211_tkip_gen_phase1key(key, hdr->addr2,
- (u16 *)tx->u.tx.control->tkip_key);
- key->u.tkip.tx_initialized = 1;
- tx->u.tx.control->flags |=
- IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
- } else
- tx->u.tx.control->flags &=
- ~IEEE80211_TXCTL_TKIP_NEW_PHASE1_KEY;
- }
-
tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx;
return 0;
}
ieee80211_txrx_result
-ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx)
+ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- u16 fc;
- struct ieee80211_key *key = tx->key;
struct sk_buff *skb = tx->skb;
int wpa_test = 0, test = 0;
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!key || key->conf.alg != ALG_TKIP || !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);
ieee80211_txrx_result
-ieee80211_rx_h_tkip_decrypt(struct ieee80211_txrx_data *rx)
+ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
u16 fc;
int hdrlen, res, hwaccel = 0, wpa_test = 0;
struct ieee80211_key *key = rx->key;
struct sk_buff *skb = rx->skb;
+ DECLARE_MAC_BUF(mac);
fc = le16_to_cpu(hdr->frame_control);
hdrlen = ieee80211_get_hdrlen(fc);
- if (!rx->key || rx->key->conf.alg != ALG_TKIP ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
return TXRX_CONTINUE;
if (!rx->sta || skb->len - hdrlen < 12)
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 "
- MAC_FMT " (res=%d)\n",
- rx->dev->name, MAC_ARG(rx->sta->addr), res);
+#ifdef CONFIG_MAC80211_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: TKIP decrypt failed for RX "
+ "frame from %s (res=%d)\n", rx->dev->name,
+ print_mac(mac, rx->sta->addr), res);
+#endif /* CONFIG_MAC80211_DEBUG */
return TXRX_DROP;
}
ieee80211_txrx_result
-ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx)
+ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx)
{
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) tx->skb->data;
- struct ieee80211_key *key = tx->key;
- u16 fc;
struct sk_buff *skb = tx->skb;
int test = 0;
- fc = le16_to_cpu(hdr->frame_control);
-
- if (!key || key->conf.alg != ALG_CCMP || !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);
ieee80211_txrx_result
-ieee80211_rx_h_ccmp_decrypt(struct ieee80211_txrx_data *rx)
+ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx)
{
struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) rx->skb->data;
u16 fc;
struct sk_buff *skb = rx->skb;
u8 pn[CCMP_PN_LEN];
int data_len;
+ DECLARE_MAC_BUF(mac);
fc = le16_to_cpu(hdr->frame_control);
hdrlen = ieee80211_get_hdrlen(fc);
- if (!key || key->conf.alg != ALG_CCMP ||
- !(rx->fc & IEEE80211_FCTL_PROTECTED) ||
- (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
+ if ((rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA)
return TXRX_CONTINUE;
data_len = skb->len - hdrlen - CCMP_HDR_LEN - CCMP_MIC_LEN;
if (memcmp(pn, key->u.ccmp.rx_pn[rx->u.rx.queue], CCMP_PN_LEN) <= 0) {
#ifdef CONFIG_MAC80211_DEBUG
u8 *ppn = key->u.ccmp.rx_pn[rx->u.rx.queue];
+
printk(KERN_DEBUG "%s: CCMP replay detected for RX frame from "
- MAC_FMT " (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
+ "%s (RX PN %02x%02x%02x%02x%02x%02x <= prev. PN "
"%02x%02x%02x%02x%02x%02x)\n", rx->dev->name,
- MAC_ARG(rx->sta->addr),
+ print_mac(mac, rx->sta->addr),
pn[0], pn[1], pn[2], pn[3], pn[4], pn[5],
ppn[0], ppn[1], ppn[2], ppn[3], ppn[4], ppn[5]);
#endif /* CONFIG_MAC80211_DEBUG */
skb->data + hdrlen + CCMP_HDR_LEN, data_len,
skb->data + skb->len - CCMP_MIC_LEN,
skb->data + hdrlen + CCMP_HDR_LEN)) {
- printk(KERN_DEBUG "%s: CCMP decrypt failed for RX "
- "frame from " MAC_FMT "\n", rx->dev->name,
- MAC_ARG(rx->sta->addr));
+#ifdef CONFIG_MAC80211_DEBUG
+ if (net_ratelimit())
+ printk(KERN_DEBUG "%s: CCMP decrypt failed "
+ "for RX frame from %s\n", rx->dev->name,
+ print_mac(mac, rx->sta->addr));
+#endif /* CONFIG_MAC80211_DEBUG */
return TXRX_DROP;
}
}
return TXRX_CONTINUE;
}
-
git.openpandora.org / pandora-kernel.git / blobdiff