diff options
| author | Florian Schilhabel <florian.c.schilhabel@googlemail.com> | 2010-07-15 21:04:10 +0400 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@suse.de> | 2010-07-22 23:00:21 +0400 |
| commit | 353db17dce3d621149aae45aa9f043876fec4dc1 (patch) | |
| tree | 3003a368216f541268c225f21f6a9d39c2120627 | |
| parent | d4dfd8065d0b36b3ff91ff94d7e1ebea20a6bb66 (diff) | |
| download | linux-353db17dce3d621149aae45aa9f043876fec4dc1.tar.xz | |
staging: rtl8192su: merge changes in ieee80211_tkip_data()
Signed-off-by: Florian Schilhabel <florian.c.schilhabel@googlemail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
| -rw-r--r-- | drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c | 10 |
1 files changed, 5 insertions, 5 deletions
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c index b8d9f5e38d2b..c8f5ecf20df8 100644 --- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c +++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c @@ -42,6 +42,7 @@ struct ieee80211_tkip_data { u32 rx_iv32; u16 rx_iv16; + bool initialized; u16 rx_ttak[5]; int rx_phase1_done; u32 rx_iv32_new; @@ -432,8 +433,8 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) if (!tcb_desc->bHwSec) { - if (iv32 < tkey->rx_iv32 || - (iv32 == tkey->rx_iv32 && iv16 <= tkey->rx_iv16)) { + if ((iv32 < tkey->rx_iv32 || + (iv32 == tkey->rx_iv32 && iv16 <= tkey->rx_iv16))&&tkey->initialized) { if (net_ratelimit()) { printk(KERN_DEBUG "TKIP: replay detected: STA=%pM" " previous TSC %08x%04x received TSC " @@ -443,6 +444,7 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) tkey->dot11RSNAStatsTKIPReplays++; return -4; } + tkey->initialized = true; if (iv32 != tkey->rx_iv32 || !tkey->rx_phase1_done) { tkip_mixing_phase1(tkey->rx_ttak, tkey->key, hdr->addr2, iv32); @@ -451,10 +453,8 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv) tkip_mixing_phase2(rc4key, tkey->key, tkey->rx_ttak, iv16); plen = skb->len - hdr_len - 12; - + sg_init_one(&sg, pos, plen+4); crypto_blkcipher_setkey(tkey->rx_tfm_arc4, rc4key, 16); - sg_init_one(&sg, pos, plen + 4); - if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) { if (net_ratelimit()) { printk(KERN_DEBUG ": TKIP: failed to decrypt " |