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authorHerbert Xu <herbert@gondor.apana.org.au>2016-01-24 21:18:50 +0800
committerHerbert Xu <herbert@gondor.apana.org.au>2016-01-27 20:36:05 +0800
commit96953718623eb7ee8839ae667dfecad7b257d400 (patch)
tree63b3c1d8b1e4251842b8eaeadfc582d40859a4e1 /net/mac802154
parente59dd982d355a40f08a666ce3ee3feea2af86959 (diff)
downloadlinux-stericsson-96953718623eb7ee8839ae667dfecad7b257d400.tar.gz
mac802154: Use skcipher
This patch replaces uses of blkcipher with skcipher. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com>
Diffstat (limited to 'net/mac802154')
-rw-r--r--net/mac802154/llsec.c41
-rw-r--r--net/mac802154/llsec.h3
2 files changed, 24 insertions, 20 deletions
diff --git a/net/mac802154/llsec.c b/net/mac802154/llsec.c
index a13d02b7cee4..6a3e1c2181d3 100644
--- a/net/mac802154/llsec.c
+++ b/net/mac802154/llsec.c
@@ -17,9 +17,9 @@
#include <linux/err.h>
#include <linux/bug.h>
#include <linux/completion.h>
-#include <linux/crypto.h>
#include <linux/ieee802154.h>
#include <crypto/aead.h>
+#include <crypto/skcipher.h>
#include "ieee802154_i.h"
#include "llsec.h"
@@ -144,18 +144,18 @@ llsec_key_alloc(const struct ieee802154_llsec_key *template)
goto err_tfm;
}
- key->tfm0 = crypto_alloc_blkcipher("ctr(aes)", 0, CRYPTO_ALG_ASYNC);
+ key->tfm0 = crypto_alloc_skcipher("ctr(aes)", 0, CRYPTO_ALG_ASYNC);
if (IS_ERR(key->tfm0))
goto err_tfm;
- if (crypto_blkcipher_setkey(key->tfm0, template->key,
- IEEE802154_LLSEC_KEY_SIZE))
+ if (crypto_skcipher_setkey(key->tfm0, template->key,
+ IEEE802154_LLSEC_KEY_SIZE))
goto err_tfm0;
return key;
err_tfm0:
- crypto_free_blkcipher(key->tfm0);
+ crypto_free_skcipher(key->tfm0);
err_tfm:
for (i = 0; i < ARRAY_SIZE(key->tfm); i++)
if (key->tfm[i])
@@ -175,7 +175,7 @@ static void llsec_key_release(struct kref *ref)
for (i = 0; i < ARRAY_SIZE(key->tfm); i++)
crypto_free_aead(key->tfm[i]);
- crypto_free_blkcipher(key->tfm0);
+ crypto_free_skcipher(key->tfm0);
kzfree(key);
}
@@ -620,15 +620,17 @@ llsec_do_encrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
{
u8 iv[16];
struct scatterlist src;
- struct blkcipher_desc req = {
- .tfm = key->tfm0,
- .info = iv,
- .flags = 0,
- };
+ SKCIPHER_REQUEST_ON_STACK(req, key->tfm0);
+ int err;
llsec_geniv(iv, sec->params.hwaddr, &hdr->sec);
sg_init_one(&src, skb->data, skb->len);
- return crypto_blkcipher_encrypt_iv(&req, &src, &src, skb->len);
+ skcipher_request_set_tfm(req, key->tfm0);
+ skcipher_request_set_callback(req, 0, NULL, NULL);
+ skcipher_request_set_crypt(req, &src, &src, skb->len, iv);
+ err = crypto_skcipher_encrypt(req);
+ skcipher_request_zero(req);
+ return err;
}
static struct crypto_aead*
@@ -830,11 +832,8 @@ llsec_do_decrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
unsigned char *data;
int datalen;
struct scatterlist src;
- struct blkcipher_desc req = {
- .tfm = key->tfm0,
- .info = iv,
- .flags = 0,
- };
+ SKCIPHER_REQUEST_ON_STACK(req, key->tfm0);
+ int err;
llsec_geniv(iv, dev_addr, &hdr->sec);
data = skb_mac_header(skb) + skb->mac_len;
@@ -842,7 +841,13 @@ llsec_do_decrypt_unauth(struct sk_buff *skb, const struct mac802154_llsec *sec,
sg_init_one(&src, data, datalen);
- return crypto_blkcipher_decrypt_iv(&req, &src, &src, datalen);
+ skcipher_request_set_tfm(req, key->tfm0);
+ skcipher_request_set_callback(req, 0, NULL, NULL);
+ skcipher_request_set_crypt(req, &src, &src, datalen, iv);
+
+ err = crypto_skcipher_decrypt(req);
+ skcipher_request_zero(req);
+ return err;
}
static int
diff --git a/net/mac802154/llsec.h b/net/mac802154/llsec.h
index 950578e1d7be..6f3b658e3279 100644
--- a/net/mac802154/llsec.h
+++ b/net/mac802154/llsec.h
@@ -19,7 +19,6 @@
#include <linux/slab.h>
#include <linux/hashtable.h>
-#include <linux/crypto.h>
#include <linux/kref.h>
#include <linux/spinlock.h>
#include <net/af_ieee802154.h>
@@ -30,7 +29,7 @@ struct mac802154_llsec_key {
/* one tfm for each authsize (4/8/16) */
struct crypto_aead *tfm[3];
- struct crypto_blkcipher *tfm0;
+ struct crypto_skcipher *tfm0;
struct kref ref;
};