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diff -urp ieee80211-1.1.14/ieee80211_crypt_tkip.c ieee80211-1.1.14-tkip/ieee80211_crypt_tkip.c
--- ieee80211-1.1.14/ieee80211_crypt_tkip.c 2006-06-12 14:08:02.000000000 +0800
+++ ieee80211-1.1.14-tkip/ieee80211_crypt_tkip.c 2006-08-01 11:19:03.000000000 +0800
@@ -53,8 +53,10 @@ struct ieee80211_tkip_data {
int key_idx;
- struct crypto_tfm *tfm_arc4;
- struct crypto_tfm *tfm_michael;
+ struct crypto_tfm *tx_tfm_arc4;
+ struct crypto_tfm *tx_tfm_michael;
+ struct crypto_tfm *rx_tfm_arc4;
+ struct crypto_tfm *rx_tfm_michael;
/* scratch buffers for virt_to_page() (crypto API) */
u8 rx_hdr[16], tx_hdr[16];
@@ -86,15 +88,29 @@ static void *ieee80211_tkip_init(int key
priv->key_idx = key_idx;
- priv->tfm_arc4 = crypto_alloc_tfm("arc4", 0);
- if (priv->tfm_arc4 == NULL) {
+ priv->tx_tfm_arc4 = crypto_alloc_tfm("arc4", 0);
+ if (priv->tx_tfm_arc4 == NULL) {
printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
"crypto API arc4\n");
goto fail;
}
- priv->tfm_michael = crypto_alloc_tfm("michael_mic", 0);
- if (priv->tfm_michael == NULL) {
+ priv->tx_tfm_michael = crypto_alloc_tfm("michael_mic", 0);
+ if (priv->tx_tfm_michael == NULL) {
+ printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
+ "crypto API michael_mic\n");
+ goto fail;
+ }
+
+ priv->rx_tfm_arc4 = crypto_alloc_tfm("arc4", 0);
+ if (priv->rx_tfm_arc4 == NULL) {
+ printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
+ "crypto API arc4\n");
+ goto fail;
+ }
+
+ priv->rx_tfm_michael = crypto_alloc_tfm("michael_mic", 0);
+ if (priv->rx_tfm_michael == NULL) {
printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
"crypto API michael_mic\n");
goto fail;
@@ -104,10 +120,14 @@ static void *ieee80211_tkip_init(int key
fail:
if (priv) {
- if (priv->tfm_michael)
- crypto_free_tfm(priv->tfm_michael);
- if (priv->tfm_arc4)
- crypto_free_tfm(priv->tfm_arc4);
+ if (priv->tx_tfm_michael)
+ crypto_free_tfm(priv->tx_tfm_michael);
+ if (priv->tx_tfm_arc4)
+ crypto_free_tfm(priv->tx_tfm_arc4);
+ if (priv->rx_tfm_michael)
+ crypto_free_tfm(priv->rx_tfm_michael);
+ if (priv->rx_tfm_arc4)
+ crypto_free_tfm(priv->rx_tfm_arc4);
kfree(priv);
}
@@ -117,10 +137,14 @@ static void *ieee80211_tkip_init(int key
static void ieee80211_tkip_deinit(void *priv)
{
struct ieee80211_tkip_data *_priv = priv;
- if (_priv && _priv->tfm_michael)
- crypto_free_tfm(_priv->tfm_michael);
- if (_priv && _priv->tfm_arc4)
- crypto_free_tfm(_priv->tfm_arc4);
+ if (_priv && _priv->tx_tfm_michael)
+ crypto_free_tfm(_priv->tx_tfm_michael);
+ if (_priv && _priv->tx_tfm_arc4)
+ crypto_free_tfm(_priv->tx_tfm_arc4);
+ if (_priv && _priv->rx_tfm_michael)
+ crypto_free_tfm(_priv->rx_tfm_michael);
+ if (_priv && _priv->rx_tfm_arc4)
+ crypto_free_tfm(_priv->rx_tfm_arc4);
kfree(priv);
}
@@ -352,11 +376,11 @@ static int ieee80211_tkip_encrypt(struct
icv[2] = crc >> 16;
icv[3] = crc >> 24;
- crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
+ crypto_cipher_setkey(tkey->tx_tfm_arc4, rc4key, 16);
sg.page = virt_to_page(pos);
sg.offset = offset_in_page(pos);
sg.length = len + 4;
- crypto_cipher_encrypt(tkey->tfm_arc4, &sg, &sg, len + 4);
+ crypto_cipher_encrypt(tkey->tx_tfm_arc4, &sg, &sg, len + 4);
return 0;
}
@@ -447,11 +471,11 @@ static int ieee80211_tkip_decrypt(struct
plen = skb->len - hdr_len - 12;
- crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
+ crypto_cipher_setkey(tkey->rx_tfm_arc4, rc4key, 16);
sg.page = virt_to_page(pos);
sg.offset = offset_in_page(pos);
sg.length = plen + 4;
- crypto_cipher_decrypt(tkey->tfm_arc4, &sg, &sg, plen + 4);
+ crypto_cipher_decrypt(tkey->rx_tfm_arc4, &sg, &sg, plen + 4);
crc = ~crc32_le(~0, pos, plen);
icv[0] = crc;
@@ -485,12 +509,12 @@ static int ieee80211_tkip_decrypt(struct
return keyidx;
}
-static int michael_mic(struct ieee80211_tkip_data *tkey, u8 * key, u8 * hdr,
+static int michael_mic(struct crypto_tfm *tfm_michael, u8 * key, u8 * hdr,
u8 * data, size_t data_len, u8 * mic)
{
struct scatterlist sg[2];
- if (tkey->tfm_michael == NULL) {
+ if (tfm_michael == NULL) {
printk(KERN_WARNING "michael_mic: tfm_michael == NULL\n");
return -1;
}
@@ -502,10 +526,10 @@ static int michael_mic(struct ieee80211_
sg[1].offset = offset_in_page(data);
sg[1].length = data_len;
- crypto_digest_init(tkey->tfm_michael);
- crypto_digest_setkey(tkey->tfm_michael, key, 8);
- crypto_digest_update(tkey->tfm_michael, sg, 2);
- crypto_digest_final(tkey->tfm_michael, mic);
+ crypto_digest_init(tfm_michael);
+ crypto_digest_setkey(tfm_michael, key, 8);
+ crypto_digest_update(tfm_michael, sg, 2);
+ crypto_digest_final(tfm_michael, mic);
return 0;
}
@@ -563,7 +587,7 @@ static int ieee80211_michael_mic_add(str
michael_mic_hdr(skb, tkey->tx_hdr);
pos = skb_put(skb, 8);
- if (michael_mic(tkey, &tkey->key[16], tkey->tx_hdr,
+ if (michael_mic(tkey->tx_tfm_michael, &tkey->key[16], tkey->tx_hdr,
skb->data + hdr_len, skb->len - 8 - hdr_len, pos))
return -1;
@@ -625,7 +649,7 @@ static int ieee80211_michael_mic_verify(
return -1;
michael_mic_hdr(skb, tkey->rx_hdr);
- if (michael_mic(tkey, &tkey->key[24], tkey->rx_hdr,
+ if (michael_mic(tkey->rx_tfm_michael, &tkey->key[24], tkey->rx_hdr,
skb->data + hdr_len, skb->len - 8 - hdr_len, mic))
return -1;
if (memcmp(mic, skb->data + skb->len - 8, 8) != 0) {
@@ -655,14 +679,18 @@ static int ieee80211_tkip_set_key(void *
{
struct ieee80211_tkip_data *tkey = priv;
int keyidx;
- struct crypto_tfm *tfm = tkey->tfm_michael;
- struct crypto_tfm *tfm2 = tkey->tfm_arc4;
+ struct crypto_tfm *tfm = tkey->tx_tfm_michael;
+ struct crypto_tfm *tfm2 = tkey->tx_tfm_arc4;
+ struct crypto_tfm *tfm3 = tkey->rx_tfm_michael;
+ struct crypto_tfm *tfm4 = tkey->rx_tfm_arc4;
keyidx = tkey->key_idx;
memset(tkey, 0, sizeof(*tkey));
tkey->key_idx = keyidx;
- tkey->tfm_michael = tfm;
- tkey->tfm_arc4 = tfm2;
+ tkey->tx_tfm_michael = tfm;
+ tkey->tx_tfm_arc4 = tfm2;
+ tkey->rx_tfm_michael = tfm3;
+ tkey->rx_tfm_arc4 = tfm4;
if (len == TKIP_KEY_LEN) {
memcpy(tkey->key, key, TKIP_KEY_LEN);
tkey->key_set = 1;
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