cipher_crypt_one(tfm, dst, src, false);
}
EXPORT_SYMBOL_NS_GPL(crypto_cipher_decrypt_one, CRYPTO_INTERNAL);
+
+struct crypto_cipher *crypto_clone_cipher(struct crypto_cipher *cipher)
+{
+ struct crypto_tfm *tfm = crypto_cipher_tfm(cipher);
+ struct crypto_alg *alg = tfm->__crt_alg;
+ struct crypto_cipher *ncipher;
+ struct crypto_tfm *ntfm;
+
+ if (alg->cra_init)
+ return ERR_PTR(-ENOSYS);
+
+ if (unlikely(!crypto_mod_get(alg)))
+ return ERR_PTR(-ESTALE);
+
+ ntfm = __crypto_alloc_tfmgfp(alg, CRYPTO_ALG_TYPE_CIPHER,
+ CRYPTO_ALG_TYPE_MASK, GFP_ATOMIC);
+ if (IS_ERR(ntfm)) {
+ crypto_mod_put(alg);
+ return ERR_CAST(ntfm);
+ }
+
+ ntfm->crt_flags = tfm->crt_flags;
+
+ ncipher = __crypto_cipher_cast(ntfm);
+
+ return ncipher;
+}
+EXPORT_SYMBOL_GPL(crypto_clone_cipher);