cifs: Use skcipher

This patch replaces uses of blkcipher with skcipher.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>

1 files changed, 19 insertions, 7 deletions

diff --git a/fs/cifs/smbencrypt.c b/fs/cifs/smbencrypt.c
index a4232ec4f2ba..699b7868108f 100644
--- a/fs/cifs/smbencrypt.c
+++ b/fs/cifs/smbencrypt.c
@@ -23,6 +23,7 @@
    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
 */
 
+#include <crypto/skcipher.h>
 #include <linux/module.h>
 #include <linux/slab.h>
 #include <linux/fs.h>
@@ -70,31 +71,42 @@ smbhash(unsigned char *out, const unsigned char *in, unsigned char *key)
 {
 	int rc;
 	unsigned char key2[8];
-	struct crypto_blkcipher *tfm_des;
+	struct crypto_skcipher *tfm_des;
 	struct scatterlist sgin, sgout;
-	struct blkcipher_desc desc;
+	struct skcipher_request *req;
 
 	str_to_key(key, key2);
 
-	tfm_des = crypto_alloc_blkcipher("ecb(des)", 0, CRYPTO_ALG_ASYNC);
+	tfm_des = crypto_alloc_skcipher("ecb(des)", 0, CRYPTO_ALG_ASYNC);
 	if (IS_ERR(tfm_des)) {
 		rc = PTR_ERR(tfm_des);
 		cifs_dbg(VFS, "could not allocate des crypto API\n");
 		goto smbhash_err;
 	}
 
-	desc.tfm = tfm_des;
+	req = skcipher_request_alloc(tfm_des, GFP_KERNEL);
+	if (!req) {
+		rc = -ENOMEM;
+		cifs_dbg(VFS, "could not allocate des crypto API\n");
+		goto smbhash_free_skcipher;
+	}
 
-	crypto_blkcipher_setkey(tfm_des, key2, 8);
+	crypto_skcipher_setkey(tfm_des, key2, 8);
 
 	sg_init_one(&sgin, in, 8);
 	sg_init_one(&sgout, out, 8);
 
-	rc = crypto_blkcipher_encrypt(&desc, &sgout, &sgin, 8);
+	skcipher_request_set_callback(req, 0, NULL, NULL);
+	skcipher_request_set_crypt(req, &sgin, &sgout, 8, NULL);
+
+	rc = crypto_skcipher_encrypt(req);
 	if (rc)
 		cifs_dbg(VFS, "could not encrypt crypt key rc: %d\n", rc);
 
-	crypto_free_blkcipher(tfm_des);
+	skcipher_request_free(req);
+
+smbhash_free_skcipher:
+	crypto_free_skcipher(tfm_des);
 smbhash_err:
 	return rc;
 }