diff options
Diffstat (limited to 'net')
-rw-r--r-- | net/mac80211/tx.c | 62 | ||||
-rw-r--r-- | net/mac80211/wep.c | 57 | ||||
-rw-r--r-- | net/mac80211/wep.h | 5 | ||||
-rw-r--r-- | net/mac80211/wpa.c | 10 | ||||
-rw-r--r-- | net/mac80211/wpa.h | 4 |
5 files changed, 77 insertions, 61 deletions
diff --git a/net/mac80211/tx.c b/net/mac80211/tx.c index 244c80d..54e0539 100644 --- a/net/mac80211/tx.c +++ b/net/mac80211/tx.c @@ -541,56 +541,26 @@ ieee80211_tx_h_fragment(struct ieee80211_txrx_data *tx) return TXRX_DROP; } -static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb) -{ - if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) { - if (ieee80211_wep_encrypt(tx->local, skb, tx->key)) - return -1; - } else { - tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx; - if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) { - if (!ieee80211_wep_add_iv(tx->local, skb, tx->key)) - return -1; - } - } - return 0; -} - static ieee80211_txrx_result -ieee80211_tx_h_wep_encrypt(struct ieee80211_txrx_data *tx) +ieee80211_tx_h_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 (!tx->key || tx->key->conf.alg != ALG_WEP || - ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_DATA && - ((fc & IEEE80211_FCTL_FTYPE) != IEEE80211_FTYPE_MGMT || - (fc & IEEE80211_FCTL_STYPE) != IEEE80211_STYPE_AUTH))) + if (!tx->key) 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); - - if (wep_encrypt_skb(tx, tx->skb) < 0) { - I802_DEBUG_INC(tx->local->tx_handlers_drop_wep); - return TXRX_DROP; - } - - if (tx->u.tx.extra_frag) { - int i; - for (i = 0; i < tx->u.tx.num_extra_frag; i++) { - if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) { - I802_DEBUG_INC(tx->local-> - tx_handlers_drop_wep); - return TXRX_DROP; - } - } + switch (tx->key->conf.alg) { + case ALG_WEP: + return ieee80211_crypto_wep_encrypt(tx); + case ALG_TKIP: + return ieee80211_crypto_tkip_encrypt(tx); + case ALG_CCMP: + return ieee80211_crypto_ccmp_encrypt(tx); + case ALG_NONE: + return TXRX_CONTINUE; } - return TXRX_CONTINUE; + /* not reached */ + WARN_ON(1); + return TXRX_DROP; } static ieee80211_txrx_result @@ -805,9 +775,7 @@ ieee80211_tx_handler ieee80211_tx_handlers[] = ieee80211_tx_h_select_key, ieee80211_tx_h_michael_mic_add, ieee80211_tx_h_fragment, - ieee80211_tx_h_tkip_encrypt, - ieee80211_tx_h_ccmp_encrypt, - ieee80211_tx_h_wep_encrypt, + ieee80211_tx_h_encrypt, ieee80211_tx_h_rate_ctrl, ieee80211_tx_h_misc, ieee80211_tx_h_load_stats, diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index e785fe1..16fee14 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -80,9 +80,9 @@ static void ieee80211_wep_get_iv(struct ieee80211_local *local, } -u8 * ieee80211_wep_add_iv(struct ieee80211_local *local, - struct sk_buff *skb, - struct ieee80211_key *key) +static u8 *ieee80211_wep_add_iv(struct ieee80211_local *local, + struct sk_buff *skb, + struct ieee80211_key *key) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *) skb->data; u16 fc; @@ -350,3 +350,54 @@ ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx) return TXRX_CONTINUE; } + +static int wep_encrypt_skb(struct ieee80211_txrx_data *tx, struct sk_buff *skb) +{ + if (!(tx->key->flags & KEY_FLAG_UPLOADED_TO_HARDWARE)) { + if (ieee80211_wep_encrypt(tx->local, skb, tx->key)) + return -1; + } else { + tx->u.tx.control->key_idx = tx->key->conf.hw_key_idx; + if (tx->key->conf.flags & IEEE80211_KEY_FLAG_GENERATE_IV) { + if (!ieee80211_wep_add_iv(tx->local, skb, tx->key)) + return -1; + } + } + return 0; +} + +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); + + if (wep_encrypt_skb(tx, tx->skb) < 0) { + I802_DEBUG_INC(tx->local->tx_handlers_drop_wep); + return TXRX_DROP; + } + + if (tx->u.tx.extra_frag) { + int i; + for (i = 0; i < tx->u.tx.num_extra_frag; i++) { + if (wep_encrypt_skb(tx, tx->u.tx.extra_frag[i]) < 0) { + I802_DEBUG_INC(tx->local-> + tx_handlers_drop_wep); + return TXRX_DROP; + } + } + } + + return TXRX_CONTINUE; +} diff --git a/net/mac80211/wep.h b/net/mac80211/wep.h index dfa5af1..da53190 100644 --- a/net/mac80211/wep.h +++ b/net/mac80211/wep.h @@ -18,9 +18,6 @@ int ieee80211_wep_init(struct ieee80211_local *local); void ieee80211_wep_free(struct ieee80211_local *local); -u8 * ieee80211_wep_add_iv(struct ieee80211_local *local, - struct sk_buff *skb, - struct ieee80211_key *key); void ieee80211_wep_encrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, size_t klen, u8 *data, size_t data_len); int ieee80211_wep_decrypt_data(struct crypto_blkcipher *tfm, u8 *rc4key, @@ -34,5 +31,7 @@ u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key); ieee80211_txrx_result ieee80211_crypto_wep_decrypt(struct ieee80211_txrx_data *rx); +ieee80211_txrx_result +ieee80211_crypto_wep_encrypt(struct ieee80211_txrx_data *tx); #endif /* WEP_H */ diff --git a/net/mac80211/wpa.c b/net/mac80211/wpa.c index 108fe3e..a07fd748 100644 --- a/net/mac80211/wpa.c +++ b/net/mac80211/wpa.c @@ -239,17 +239,16 @@ static int tkip_encrypt_skb(struct ieee80211_txrx_data *tx, 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)) + if (!WLAN_FC_DATA_PRESENT(fc)) return TXRX_CONTINUE; tx->u.tx.control->icv_len = TKIP_ICV_LEN; @@ -491,17 +490,16 @@ static int ccmp_encrypt_skb(struct ieee80211_txrx_data *tx, 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)) + if (!WLAN_FC_DATA_PRESENT(fc)) return TXRX_CONTINUE; tx->u.tx.control->icv_len = CCMP_MIC_LEN; diff --git a/net/mac80211/wpa.h b/net/mac80211/wpa.h index e49946f..49d80cf 100644 --- a/net/mac80211/wpa.h +++ b/net/mac80211/wpa.h @@ -19,12 +19,12 @@ ieee80211_txrx_result ieee80211_rx_h_michael_mic_verify(struct ieee80211_txrx_data *rx); ieee80211_txrx_result -ieee80211_tx_h_tkip_encrypt(struct ieee80211_txrx_data *tx); +ieee80211_crypto_tkip_encrypt(struct ieee80211_txrx_data *tx); ieee80211_txrx_result ieee80211_crypto_tkip_decrypt(struct ieee80211_txrx_data *rx); ieee80211_txrx_result -ieee80211_tx_h_ccmp_encrypt(struct ieee80211_txrx_data *tx); +ieee80211_crypto_ccmp_encrypt(struct ieee80211_txrx_data *tx); ieee80211_txrx_result ieee80211_crypto_ccmp_decrypt(struct ieee80211_txrx_data *rx); 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