crypto: qce - Use skcipher for fallback
authorHerbert Xu <herbert@gondor.apana.org.au>
Wed, 29 Jun 2016 10:04:04 +0000 (18:04 +0800)
committerHerbert Xu <herbert@gondor.apana.org.au>
Fri, 1 Jul 2016 15:45:09 +0000 (23:45 +0800)
This patch replaces use of the obsolete ablkcipher with skcipher.

Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
drivers/crypto/qce/ablkcipher.c
drivers/crypto/qce/cipher.h

index dbcbbe2..b04b42f 100644 (file)
@@ -15,8 +15,8 @@
 #include <linux/interrupt.h>
 #include <linux/types.h>
 #include <crypto/aes.h>
-#include <crypto/algapi.h>
 #include <crypto/des.h>
+#include <crypto/internal/skcipher.h>
 
 #include "cipher.h"
 
@@ -189,7 +189,7 @@ static int qce_ablkcipher_setkey(struct crypto_ablkcipher *ablk, const u8 *key,
        memcpy(ctx->enc_key, key, keylen);
        return 0;
 fallback:
-       ret = crypto_ablkcipher_setkey(ctx->fallback, key, keylen);
+       ret = crypto_skcipher_setkey(ctx->fallback, key, keylen);
        if (!ret)
                ctx->enc_keylen = keylen;
        return ret;
@@ -212,10 +212,16 @@ static int qce_ablkcipher_crypt(struct ablkcipher_request *req, int encrypt)
 
        if (IS_AES(rctx->flags) && ctx->enc_keylen != AES_KEYSIZE_128 &&
            ctx->enc_keylen != AES_KEYSIZE_256) {
-               ablkcipher_request_set_tfm(req, ctx->fallback);
-               ret = encrypt ? crypto_ablkcipher_encrypt(req) :
-                               crypto_ablkcipher_decrypt(req);
-               ablkcipher_request_set_tfm(req, __crypto_ablkcipher_cast(tfm));
+               SKCIPHER_REQUEST_ON_STACK(subreq, ctx->fallback);
+
+               skcipher_request_set_tfm(subreq, ctx->fallback);
+               skcipher_request_set_callback(subreq, req->base.flags,
+                                             NULL, NULL);
+               skcipher_request_set_crypt(subreq, req->src, req->dst,
+                                          req->nbytes, req->info);
+               ret = encrypt ? crypto_skcipher_encrypt(subreq) :
+                               crypto_skcipher_decrypt(subreq);
+               skcipher_request_zero(subreq);
                return ret;
        }
 
@@ -239,10 +245,9 @@ static int qce_ablkcipher_init(struct crypto_tfm *tfm)
        memset(ctx, 0, sizeof(*ctx));
        tfm->crt_ablkcipher.reqsize = sizeof(struct qce_cipher_reqctx);
 
-       ctx->fallback = crypto_alloc_ablkcipher(crypto_tfm_alg_name(tfm),
-                                               CRYPTO_ALG_TYPE_ABLKCIPHER,
-                                               CRYPTO_ALG_ASYNC |
-                                               CRYPTO_ALG_NEED_FALLBACK);
+       ctx->fallback = crypto_alloc_skcipher(crypto_tfm_alg_name(tfm), 0,
+                                             CRYPTO_ALG_ASYNC |
+                                             CRYPTO_ALG_NEED_FALLBACK);
        if (IS_ERR(ctx->fallback))
                return PTR_ERR(ctx->fallback);
 
@@ -253,7 +258,7 @@ static void qce_ablkcipher_exit(struct crypto_tfm *tfm)
 {
        struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
 
-       crypto_free_ablkcipher(ctx->fallback);
+       crypto_free_skcipher(ctx->fallback);
 }
 
 struct qce_ablkcipher_def {
index 5c6a5f8..2b0278b 100644 (file)
@@ -22,7 +22,7 @@
 struct qce_cipher_ctx {
        u8 enc_key[QCE_MAX_KEY_SIZE];
        unsigned int enc_keylen;
-       struct crypto_ablkcipher *fallback;
+       struct crypto_skcipher *fallback;
 };
 
 /**