diff options
Diffstat (limited to 'drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c')
| -rw-r--r-- | drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c | 31 |
1 files changed, 14 insertions, 17 deletions
diff --git a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c index ade5f6f13667..5ab94a9665e5 100644 --- a/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c +++ b/drivers/staging/rtl8192su/ieee80211/ieee80211_crypt_tkip.c @@ -9,7 +9,6 @@ * more details. */ -//#include <linux/config.h> #include <linux/version.h> #include <linux/module.h> #include <linux/init.h> @@ -43,6 +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; @@ -433,8 +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 " @@ -444,6 +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); @@ -452,10 +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 " @@ -571,12 +570,9 @@ static int ieee80211_michael_mic_add(struct sk_buff *skb, int hdr_len, void *pri michael_mic_hdr(skb, tkey->tx_hdr); - // { david, 2006.9.1 - // fix the wpa process with wmm enabled. if(IEEE80211_QOS_HAS_SEQ(le16_to_cpu(hdr->frame_ctl))) { tkey->tx_hdr[12] = *(skb->data + hdr_len - 2) & 0x07; } - // } pos = skb_put(skb, 8); if (michael_mic(tkey->tx_tfm_michael, &tkey->key[16], tkey->tx_hdr, @@ -608,7 +604,7 @@ static void ieee80211_michael_mic_failure(struct net_device *dev, } static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, - int hdr_len, void *priv) + int hdr_len, void *priv, struct ieee80211_device* ieee) { struct ieee80211_tkip_data *tkey = priv; u8 mic[8]; @@ -620,12 +616,9 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, return -1; michael_mic_hdr(skb, tkey->rx_hdr); - // { david, 2006.9.1 - // fix the wpa process with wmm enabled. if(IEEE80211_QOS_HAS_SEQ(le16_to_cpu(hdr->frame_ctl))) { tkey->rx_hdr[12] = *(skb->data + hdr_len - 2) & 0x07; } - // } if (michael_mic(tkey->rx_tfm_michael, &tkey->key[24], tkey->rx_hdr, skb->data + hdr_len, skb->len - 8 - hdr_len, mic)) @@ -637,9 +630,14 @@ static int ieee80211_michael_mic_verify(struct sk_buff *skb, int keyidx, "MSDU from %pM keyidx=%d\n", skb->dev ? skb->dev->name : "N/A", hdr->addr2, keyidx); - if (skb->dev) + printk("%d, force_mic_error = %d\n", (memcmp(mic, skb->data + skb->len - 8, 8) != 0),\ + ieee->force_mic_error); + if (skb->dev) { + printk("skb->dev != NULL\n"); ieee80211_michael_mic_failure(skb->dev, hdr, keyidx); + } tkey->dot11RSNAStatsTKIPLocalMICFailures++; + ieee->force_mic_error = false; return -1; } @@ -762,18 +760,17 @@ static struct ieee80211_crypto_ops ieee80211_crypt_tkip = { .owner = THIS_MODULE, }; -int __init ieee80211_crypto_tkip_init(void) +int ieee80211_crypto_tkip_init(void) { return ieee80211_register_crypto_ops(&ieee80211_crypt_tkip); } -void __exit ieee80211_crypto_tkip_exit(void) +void ieee80211_crypto_tkip_exit(void) { ieee80211_unregister_crypto_ops(&ieee80211_crypt_tkip); } void ieee80211_tkip_null(void) { -// printk("============>%s()\n", __FUNCTION__); return; } |