diff options
Diffstat (limited to 'net/mac80211/wep.c')
| -rw-r--r-- | net/mac80211/wep.c | 26 |
1 files changed, 13 insertions, 13 deletions
diff --git a/net/mac80211/wep.c b/net/mac80211/wep.c index f0e2d3ecb5c4..7bbb98e846a3 100644 --- a/net/mac80211/wep.c +++ b/net/mac80211/wep.c @@ -49,17 +49,19 @@ void ieee80211_wep_free(struct ieee80211_local *local) crypto_free_blkcipher(local->wep_rx_tfm); } -static inline int ieee80211_wep_weak_iv(u32 iv, int keylen) +static inline bool ieee80211_wep_weak_iv(u32 iv, int keylen) { - /* Fluhrer, Mantin, and Shamir have reported weaknesses in the + /* + * Fluhrer, Mantin, and Shamir have reported weaknesses in the * key scheduling algorithm of RC4. At least IVs (KeyByte + 3, - * 0xff, N) can be used to speedup attacks, so avoid using them. */ + * 0xff, N) can be used to speedup attacks, so avoid using them. + */ if ((iv & 0xff00) == 0xff00) { u8 B = (iv >> 16) & 0xff; if (B >= 3 && B < 3 + keylen) - return 1; + return true; } - return 0; + return false; } @@ -268,7 +270,7 @@ int ieee80211_wep_decrypt(struct ieee80211_local *local, struct sk_buff *skb, } -u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key) +bool ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key) { struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; unsigned int hdrlen; @@ -276,16 +278,13 @@ u8 * ieee80211_wep_is_weak_iv(struct sk_buff *skb, struct ieee80211_key *key) u32 iv; if (!ieee80211_has_protected(hdr->frame_control)) - return NULL; + return false; hdrlen = ieee80211_hdrlen(hdr->frame_control); ivpos = skb->data + hdrlen; iv = (ivpos[0] << 16) | (ivpos[1] << 8) | ivpos[2]; - if (ieee80211_wep_weak_iv(iv, key->conf.keylen)) - return ivpos; - - return NULL; + return ieee80211_wep_weak_iv(iv, key->conf.keylen); } ieee80211_rx_result @@ -329,6 +328,8 @@ static int wep_encrypt_skb(struct ieee80211_tx_data *tx, struct sk_buff *skb) ieee80211_tx_result ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx) { + int i; + ieee80211_tx_set_protected(tx); if (wep_encrypt_skb(tx, tx->skb) < 0) { @@ -337,9 +338,8 @@ ieee80211_crypto_wep_encrypt(struct ieee80211_tx_data *tx) } if (tx->extra_frag) { - int i; for (i = 0; i < tx->num_extra_frag; i++) { - if (wep_encrypt_skb(tx, tx->extra_frag[i]) < 0) { + if (wep_encrypt_skb(tx, tx->extra_frag[i])) { I802_DEBUG_INC(tx->local-> tx_handlers_drop_wep); return TX_DROP; |