crypto: cryptd - Use nivcipher in cryptd_alloc_ablkcipher

Use crypto_alloc_base() instead of crypto_alloc_ablkcipher() to allocate underlying tfm in cryptd_alloc_ablkcipher. Because crypto_alloc_ablkcipher() prefer GENIV encapsulated crypto instead of raw one, while cryptd_alloc_ablkcipher needed the raw one. Signed-off-by: Huang Ying <[email protected]> Signed-off-by: Herbert Xu <[email protected]>
rtvt123 · Jun 2, 2009 · 505fd21 · 505fd21
1 parent 811d8f0
commit 505fd21
Showing 1 changed file with 9 additions and 5 deletions.
diff --git a/crypto/cryptd.c b/crypto/cryptd.c
@@ -586,20 +586,24 @@ struct cryptd_ablkcipher *cryptd_alloc_ablkcipher(const char *alg_name,
 						  u32 type, u32 mask)
 {
 	char cryptd_alg_name[CRYPTO_MAX_ALG_NAME];
-	struct crypto_ablkcipher *tfm;
+	struct crypto_tfm *tfm;
 
 	if (snprintf(cryptd_alg_name, CRYPTO_MAX_ALG_NAME,
 		     "cryptd(%s)", alg_name) >= CRYPTO_MAX_ALG_NAME)
 		return ERR_PTR(-EINVAL);
-	tfm = crypto_alloc_ablkcipher(cryptd_alg_name, type, mask);
+	type &= ~(CRYPTO_ALG_TYPE_MASK | CRYPTO_ALG_GENIV);
+	type |= CRYPTO_ALG_TYPE_BLKCIPHER;
+	mask &= ~CRYPTO_ALG_TYPE_MASK;
+	mask |= (CRYPTO_ALG_GENIV | CRYPTO_ALG_TYPE_BLKCIPHER_MASK);
+	tfm = crypto_alloc_base(cryptd_alg_name, type, mask);
 	if (IS_ERR(tfm))
 		return ERR_CAST(tfm);
-	if (crypto_ablkcipher_tfm(tfm)->__crt_alg->cra_module != THIS_MODULE) {
-		crypto_free_ablkcipher(tfm);
+	if (tfm->__crt_alg->cra_module != THIS_MODULE) {
+		crypto_free_tfm(tfm);
 		return ERR_PTR(-EINVAL);
 	}
 
-	return __cryptd_ablkcipher_cast(tfm);
+	return __cryptd_ablkcipher_cast(__crypto_ablkcipher_cast(tfm));
 }
 EXPORT_SYMBOL_GPL(cryptd_alloc_ablkcipher);