diff options
Diffstat (limited to 'net')
| -rw-r--r-- | net/mac80211/rx.c | 96 |
1 files changed, 48 insertions, 48 deletions
diff --git a/net/mac80211/rx.c b/net/mac80211/rx.c index 7cd185e9dde..6973d5c8e9e 100644 --- a/net/mac80211/rx.c +++ b/net/mac80211/rx.c @@ -512,6 +512,53 @@ ieee80211_rx_h_load_key(struct ieee80211_txrx_data *rx) return TXRX_CONTINUE; } +static ieee80211_txrx_result +ieee80211_rx_h_wep_weak_iv_detection(struct ieee80211_txrx_data *rx) +{ + if (!rx->sta || !(rx->fc & IEEE80211_FCTL_PROTECTED) || + (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA || + !rx->key || rx->key->conf.alg != ALG_WEP || + !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) + return TXRX_CONTINUE; + + /* Check for weak IVs, if hwaccel did not remove IV from the frame */ + if (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) || + !(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) + if (ieee80211_wep_is_weak_iv(rx->skb, rx->key)) + rx->sta->wep_weak_iv_count++; + + return TXRX_CONTINUE; +} + +static ieee80211_txrx_result +ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx) +{ + if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) + return TXRX_CONTINUE; + + if (!rx->key) { + if (net_ratelimit()) + printk(KERN_DEBUG "%s: RX protected frame," + " but have no key\n", rx->dev->name); + return TXRX_DROP; + } + + switch (rx->key->conf.alg) { + case ALG_WEP: + return ieee80211_crypto_wep_decrypt(rx); + case ALG_TKIP: + return ieee80211_crypto_tkip_decrypt(rx); + case ALG_CCMP: + return ieee80211_crypto_ccmp_decrypt(rx); + case ALG_NONE: + return TXRX_CONTINUE; + } + + /* not reached */ + WARN_ON(1); + return TXRX_DROP; +} + static void ap_sta_ps_start(struct net_device *dev, struct sta_info *sta) { struct ieee80211_sub_if_data *sdata; @@ -637,53 +684,6 @@ ieee80211_rx_h_sta_process(struct ieee80211_txrx_data *rx) return TXRX_CONTINUE; } /* ieee80211_rx_h_sta_process */ -static ieee80211_txrx_result -ieee80211_rx_h_wep_weak_iv_detection(struct ieee80211_txrx_data *rx) -{ - if (!rx->sta || !(rx->fc & IEEE80211_FCTL_PROTECTED) || - (rx->fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA || - !rx->key || rx->key->conf.alg != ALG_WEP || - !(rx->flags & IEEE80211_TXRXD_RXRA_MATCH)) - return TXRX_CONTINUE; - - /* Check for weak IVs, if hwaccel did not remove IV from the frame */ - if (!(rx->u.rx.status->flag & RX_FLAG_IV_STRIPPED) || - !(rx->u.rx.status->flag & RX_FLAG_DECRYPTED)) - if (ieee80211_wep_is_weak_iv(rx->skb, rx->key)) - rx->sta->wep_weak_iv_count++; - - return TXRX_CONTINUE; -} - -static ieee80211_txrx_result -ieee80211_rx_h_decrypt(struct ieee80211_txrx_data *rx) -{ - if (!(rx->fc & IEEE80211_FCTL_PROTECTED)) - return TXRX_CONTINUE; - - if (!rx->key) { - if (net_ratelimit()) - printk(KERN_DEBUG "%s: RX protected frame," - " but have no key\n", rx->dev->name); - return TXRX_DROP; - } - - switch (rx->key->conf.alg) { - case ALG_WEP: - return ieee80211_crypto_wep_decrypt(rx); - case ALG_TKIP: - return ieee80211_crypto_tkip_decrypt(rx); - case ALG_CCMP: - return ieee80211_crypto_ccmp_decrypt(rx); - case ALG_NONE: - return TXRX_CONTINUE; - } - - /* not reached */ - WARN_ON(1); - return TXRX_DROP; -} - static inline struct ieee80211_fragment_entry * ieee80211_reassemble_add(struct ieee80211_sub_if_data *sdata, unsigned int frag, unsigned int seq, int rx_queue, @@ -1349,9 +1349,9 @@ ieee80211_rx_handler ieee80211_rx_handlers[] = ieee80211_rx_h_passive_scan, ieee80211_rx_h_check, ieee80211_rx_h_load_key, - ieee80211_rx_h_sta_process, ieee80211_rx_h_wep_weak_iv_detection, ieee80211_rx_h_decrypt, + ieee80211_rx_h_sta_process, ieee80211_rx_h_defragment, ieee80211_rx_h_ps_poll, ieee80211_rx_h_michael_mic_verify, |