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-rw-r--r--net/ieee80211/ieee80211_crypt_ccmp.c32
-rw-r--r--net/ieee80211/ieee80211_crypt_tkip.c34
-rw-r--r--net/ieee80211/ieee80211_crypt_wep.c25
3 files changed, 48 insertions, 43 deletions
diff --git a/net/ieee80211/ieee80211_crypt_ccmp.c b/net/ieee80211/ieee80211_crypt_ccmp.c
index ed90a8a..fdfe770 100644
--- a/net/ieee80211/ieee80211_crypt_ccmp.c
+++ b/net/ieee80211/ieee80211_crypt_ccmp.c
@@ -9,6 +9,7 @@
* more details.
*/
+#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -48,7 +49,7 @@ struct ieee80211_ccmp_data {
int key_idx;
- struct crypto_tfm *tfm;
+ struct crypto_cipher *tfm;
/* scratch buffers for virt_to_page() (crypto API) */
u8 tx_b0[AES_BLOCK_LEN], tx_b[AES_BLOCK_LEN],
@@ -56,20 +57,10 @@ struct ieee80211_ccmp_data {
u8 rx_b0[AES_BLOCK_LEN], rx_b[AES_BLOCK_LEN], rx_a[AES_BLOCK_LEN];
};
-static void ieee80211_ccmp_aes_encrypt(struct crypto_tfm *tfm,
- const u8 pt[16], u8 ct[16])
+static inline void ieee80211_ccmp_aes_encrypt(struct crypto_cipher *tfm,
+ const u8 pt[16], u8 ct[16])
{
- struct scatterlist src, dst;
-
- src.page = virt_to_page(pt);
- src.offset = offset_in_page(pt);
- src.length = AES_BLOCK_LEN;
-
- dst.page = virt_to_page(ct);
- dst.offset = offset_in_page(ct);
- dst.length = AES_BLOCK_LEN;
-
- crypto_cipher_encrypt(tfm, &dst, &src, AES_BLOCK_LEN);
+ crypto_cipher_encrypt_one(tfm, ct, pt);
}
static void *ieee80211_ccmp_init(int key_idx)
@@ -81,10 +72,11 @@ static void *ieee80211_ccmp_init(int key_idx)
goto fail;
priv->key_idx = key_idx;
- priv->tfm = crypto_alloc_tfm("aes", 0);
- if (priv->tfm == NULL) {
+ priv->tfm = crypto_alloc_cipher("aes", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(priv->tfm)) {
printk(KERN_DEBUG "ieee80211_crypt_ccmp: could not allocate "
"crypto API aes\n");
+ priv->tfm = NULL;
goto fail;
}
@@ -93,7 +85,7 @@ static void *ieee80211_ccmp_init(int key_idx)
fail:
if (priv) {
if (priv->tfm)
- crypto_free_tfm(priv->tfm);
+ crypto_free_cipher(priv->tfm);
kfree(priv);
}
@@ -104,7 +96,7 @@ static void ieee80211_ccmp_deinit(void *priv)
{
struct ieee80211_ccmp_data *_priv = priv;
if (_priv && _priv->tfm)
- crypto_free_tfm(_priv->tfm);
+ crypto_free_cipher(_priv->tfm);
kfree(priv);
}
@@ -115,7 +107,7 @@ static inline void xor_block(u8 * b, u8 * a, size_t len)
b[i] ^= a[i];
}
-static void ccmp_init_blocks(struct crypto_tfm *tfm,
+static void ccmp_init_blocks(struct crypto_cipher *tfm,
struct ieee80211_hdr_4addr *hdr,
u8 * pn, size_t dlen, u8 * b0, u8 * auth, u8 * s0)
{
@@ -377,7 +369,7 @@ static int ieee80211_ccmp_set_key(void *key, int len, u8 * seq, void *priv)
{
struct ieee80211_ccmp_data *data = priv;
int keyidx;
- struct crypto_tfm *tfm = data->tfm;
+ struct crypto_cipher *tfm = data->tfm;
keyidx = data->key_idx;
memset(data, 0, sizeof(*data));
diff --git a/net/ieee80211/ieee80211_crypt_tkip.c b/net/ieee80211/ieee80211_crypt_tkip.c
index 34dba0b..d60ce9b 100644
--- a/net/ieee80211/ieee80211_crypt_tkip.c
+++ b/net/ieee80211/ieee80211_crypt_tkip.c
@@ -9,6 +9,7 @@
* more details.
*/
+#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -52,7 +53,7 @@ struct ieee80211_tkip_data {
int key_idx;
- struct crypto_tfm *tfm_arc4;
+ struct crypto_blkcipher *tfm_arc4;
struct crypto_tfm *tfm_michael;
/* scratch buffers for virt_to_page() (crypto API) */
@@ -85,10 +86,12 @@ static void *ieee80211_tkip_init(int key_idx)
priv->key_idx = key_idx;
- priv->tfm_arc4 = crypto_alloc_tfm("arc4", 0);
- if (priv->tfm_arc4 == NULL) {
+ priv->tfm_arc4 = crypto_alloc_blkcipher("ecb(arc4)", 0,
+ CRYPTO_ALG_ASYNC);
+ if (IS_ERR(priv->tfm_arc4)) {
printk(KERN_DEBUG "ieee80211_crypt_tkip: could not allocate "
"crypto API arc4\n");
+ priv->tfm_arc4 = NULL;
goto fail;
}
@@ -106,7 +109,7 @@ static void *ieee80211_tkip_init(int key_idx)
if (priv->tfm_michael)
crypto_free_tfm(priv->tfm_michael);
if (priv->tfm_arc4)
- crypto_free_tfm(priv->tfm_arc4);
+ crypto_free_blkcipher(priv->tfm_arc4);
kfree(priv);
}
@@ -119,7 +122,7 @@ static void ieee80211_tkip_deinit(void *priv)
if (_priv && _priv->tfm_michael)
crypto_free_tfm(_priv->tfm_michael);
if (_priv && _priv->tfm_arc4)
- crypto_free_tfm(_priv->tfm_arc4);
+ crypto_free_blkcipher(_priv->tfm_arc4);
kfree(priv);
}
@@ -318,6 +321,7 @@ static int ieee80211_tkip_hdr(struct sk_buff *skb, int hdr_len,
static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
{
struct ieee80211_tkip_data *tkey = priv;
+ struct blkcipher_desc desc = { .tfm = tkey->tfm_arc4 };
int len;
u8 rc4key[16], *pos, *icv;
u32 crc;
@@ -351,18 +355,17 @@ static int ieee80211_tkip_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
icv[2] = crc >> 16;
icv[3] = crc >> 24;
- crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
+ crypto_blkcipher_setkey(tkey->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);
-
- return 0;
+ return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4);
}
static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
{
struct ieee80211_tkip_data *tkey = priv;
+ struct blkcipher_desc desc = { .tfm = tkey->tfm_arc4 };
u8 rc4key[16];
u8 keyidx, *pos;
u32 iv32;
@@ -434,11 +437,18 @@ static int ieee80211_tkip_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
plen = skb->len - hdr_len - 12;
- crypto_cipher_setkey(tkey->tfm_arc4, rc4key, 16);
+ crypto_blkcipher_setkey(tkey->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);
+ if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4)) {
+ if (net_ratelimit()) {
+ printk(KERN_DEBUG ": TKIP: failed to decrypt "
+ "received packet from " MAC_FMT "\n",
+ MAC_ARG(hdr->addr2));
+ }
+ return -7;
+ }
crc = ~crc32_le(~0, pos, plen);
icv[0] = crc;
@@ -619,7 +629,7 @@ static int ieee80211_tkip_set_key(void *key, int len, u8 * seq, void *priv)
struct ieee80211_tkip_data *tkey = priv;
int keyidx;
struct crypto_tfm *tfm = tkey->tfm_michael;
- struct crypto_tfm *tfm2 = tkey->tfm_arc4;
+ struct crypto_blkcipher *tfm2 = tkey->tfm_arc4;
keyidx = tkey->key_idx;
memset(tkey, 0, sizeof(*tkey));
diff --git a/net/ieee80211/ieee80211_crypt_wep.c b/net/ieee80211/ieee80211_crypt_wep.c
index 0ebf235..3d46d3e 100644
--- a/net/ieee80211/ieee80211_crypt_wep.c
+++ b/net/ieee80211/ieee80211_crypt_wep.c
@@ -9,6 +9,7 @@
* more details.
*/
+#include <linux/err.h>
#include <linux/module.h>
#include <linux/init.h>
#include <linux/slab.h>
@@ -32,7 +33,7 @@ struct prism2_wep_data {
u8 key[WEP_KEY_LEN + 1];
u8 key_len;
u8 key_idx;
- struct crypto_tfm *tfm;
+ struct crypto_blkcipher *tfm;
};
static void *prism2_wep_init(int keyidx)
@@ -44,10 +45,11 @@ static void *prism2_wep_init(int keyidx)
goto fail;
priv->key_idx = keyidx;
- priv->tfm = crypto_alloc_tfm("arc4", 0);
- if (priv->tfm == NULL) {
+ priv->tfm = crypto_alloc_blkcipher("ecb(arc4)", 0, CRYPTO_ALG_ASYNC);
+ if (IS_ERR(priv->tfm)) {
printk(KERN_DEBUG "ieee80211_crypt_wep: could not allocate "
"crypto API arc4\n");
+ priv->tfm = NULL;
goto fail;
}
@@ -59,7 +61,7 @@ static void *prism2_wep_init(int keyidx)
fail:
if (priv) {
if (priv->tfm)
- crypto_free_tfm(priv->tfm);
+ crypto_free_blkcipher(priv->tfm);
kfree(priv);
}
return NULL;
@@ -69,7 +71,7 @@ static void prism2_wep_deinit(void *priv)
{
struct prism2_wep_data *_priv = priv;
if (_priv && _priv->tfm)
- crypto_free_tfm(_priv->tfm);
+ crypto_free_blkcipher(_priv->tfm);
kfree(priv);
}
@@ -120,6 +122,7 @@ static int prism2_wep_build_iv(struct sk_buff *skb, int hdr_len,
static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
{
struct prism2_wep_data *wep = priv;
+ struct blkcipher_desc desc = { .tfm = wep->tfm };
u32 crc, klen, len;
u8 *pos, *icv;
struct scatterlist sg;
@@ -151,13 +154,11 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
icv[2] = crc >> 16;
icv[3] = crc >> 24;
- crypto_cipher_setkey(wep->tfm, key, klen);
+ crypto_blkcipher_setkey(wep->tfm, key, klen);
sg.page = virt_to_page(pos);
sg.offset = offset_in_page(pos);
sg.length = len + 4;
- crypto_cipher_encrypt(wep->tfm, &sg, &sg, len + 4);
-
- return 0;
+ return crypto_blkcipher_encrypt(&desc, &sg, &sg, len + 4);
}
/* Perform WEP decryption on given buffer. Buffer includes whole WEP part of
@@ -170,6 +171,7 @@ static int prism2_wep_encrypt(struct sk_buff *skb, int hdr_len, void *priv)
static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
{
struct prism2_wep_data *wep = priv;
+ struct blkcipher_desc desc = { .tfm = wep->tfm };
u32 crc, klen, plen;
u8 key[WEP_KEY_LEN + 3];
u8 keyidx, *pos, icv[4];
@@ -194,11 +196,12 @@ static int prism2_wep_decrypt(struct sk_buff *skb, int hdr_len, void *priv)
/* Apply RC4 to data and compute CRC32 over decrypted data */
plen = skb->len - hdr_len - 8;
- crypto_cipher_setkey(wep->tfm, key, klen);
+ crypto_blkcipher_setkey(wep->tfm, key, klen);
sg.page = virt_to_page(pos);
sg.offset = offset_in_page(pos);
sg.length = plen + 4;
- crypto_cipher_decrypt(wep->tfm, &sg, &sg, plen + 4);
+ if (crypto_blkcipher_decrypt(&desc, &sg, &sg, plen + 4))
+ return -7;
crc = ~crc32_le(~0, pos, plen);
icv[0] = crc;
generated by cgit v1.1 at 2024-12-25 18:29:09 +0000