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-rw-r--r--crypto/api.c80
1 files changed, 16 insertions, 64 deletions
diff --git a/crypto/api.c b/crypto/api.c
index 8c44687..55af8bb 100644
--- a/crypto/api.c
+++ b/crypto/api.c
@@ -212,31 +212,12 @@ struct crypto_alg *crypto_alg_mod_lookup(const char *name, u32 type, u32 mask)
}
EXPORT_SYMBOL_GPL(crypto_alg_mod_lookup);
-static int crypto_init_flags(struct crypto_tfm *tfm, u32 flags)
+static int crypto_init_ops(struct crypto_tfm *tfm, u32 type, u32 mask)
{
- tfm->crt_flags = flags & CRYPTO_TFM_REQ_MASK;
- flags &= ~CRYPTO_TFM_REQ_MASK;
-
- switch (crypto_tfm_alg_type(tfm)) {
- case CRYPTO_ALG_TYPE_CIPHER:
- return crypto_init_cipher_flags(tfm, flags);
-
- case CRYPTO_ALG_TYPE_DIGEST:
- return crypto_init_digest_flags(tfm, flags);
-
- case CRYPTO_ALG_TYPE_COMPRESS:
- return crypto_init_compress_flags(tfm, flags);
- }
-
- return 0;
-}
+ const struct crypto_type *type_obj = tfm->__crt_alg->cra_type;
-static int crypto_init_ops(struct crypto_tfm *tfm)
-{
- const struct crypto_type *type = tfm->__crt_alg->cra_type;
-
- if (type)
- return type->init(tfm);
+ if (type_obj)
+ return type_obj->init(tfm, type, mask);
switch (crypto_tfm_alg_type(tfm)) {
case CRYPTO_ALG_TYPE_CIPHER:
@@ -285,29 +266,29 @@ static void crypto_exit_ops(struct crypto_tfm *tfm)
}
}
-static unsigned int crypto_ctxsize(struct crypto_alg *alg, int flags)
+static unsigned int crypto_ctxsize(struct crypto_alg *alg, u32 type, u32 mask)
{
- const struct crypto_type *type = alg->cra_type;
+ const struct crypto_type *type_obj = alg->cra_type;
unsigned int len;
len = alg->cra_alignmask & ~(crypto_tfm_ctx_alignment() - 1);
- if (type)
- return len + type->ctxsize(alg);
+ if (type_obj)
+ return len + type_obj->ctxsize(alg, type, mask);
switch (alg->cra_flags & CRYPTO_ALG_TYPE_MASK) {
default:
BUG();
case CRYPTO_ALG_TYPE_CIPHER:
- len += crypto_cipher_ctxsize(alg, flags);
+ len += crypto_cipher_ctxsize(alg);
break;
case CRYPTO_ALG_TYPE_DIGEST:
- len += crypto_digest_ctxsize(alg, flags);
+ len += crypto_digest_ctxsize(alg);
break;
case CRYPTO_ALG_TYPE_COMPRESS:
- len += crypto_compress_ctxsize(alg, flags);
+ len += crypto_compress_ctxsize(alg);
break;
}
@@ -322,24 +303,21 @@ void crypto_shoot_alg(struct crypto_alg *alg)
}
EXPORT_SYMBOL_GPL(crypto_shoot_alg);
-struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 flags)
+struct crypto_tfm *__crypto_alloc_tfm(struct crypto_alg *alg, u32 type,
+ u32 mask)
{
struct crypto_tfm *tfm = NULL;
unsigned int tfm_size;
int err = -ENOMEM;
- tfm_size = sizeof(*tfm) + crypto_ctxsize(alg, flags);
+ tfm_size = sizeof(*tfm) + crypto_ctxsize(alg, type, mask);
tfm = kzalloc(tfm_size, GFP_KERNEL);
if (tfm == NULL)
goto out_err;
tfm->__crt_alg = alg;
- err = crypto_init_flags(tfm, flags);
- if (err)
- goto out_free_tfm;
-
- err = crypto_init_ops(tfm);
+ err = crypto_init_ops(tfm, type, mask);
if (err)
goto out_free_tfm;
@@ -362,31 +340,6 @@ out:
}
EXPORT_SYMBOL_GPL(__crypto_alloc_tfm);
-struct crypto_tfm *crypto_alloc_tfm(const char *name, u32 flags)
-{
- struct crypto_tfm *tfm = NULL;
- int err;
-
- do {
- struct crypto_alg *alg;
-
- alg = crypto_alg_mod_lookup(name, 0, CRYPTO_ALG_ASYNC);
- err = PTR_ERR(alg);
- if (IS_ERR(alg))
- continue;
-
- tfm = __crypto_alloc_tfm(alg, flags);
- err = 0;
- if (IS_ERR(tfm)) {
- crypto_mod_put(alg);
- err = PTR_ERR(tfm);
- tfm = NULL;
- }
- } while (err == -EAGAIN && !signal_pending(current));
-
- return tfm;
-}
-
/*
* crypto_alloc_base - Locate algorithm and allocate transform
* @alg_name: Name of algorithm
@@ -420,7 +373,7 @@ struct crypto_tfm *crypto_alloc_base(const char *alg_name, u32 type, u32 mask)
goto err;
}
- tfm = __crypto_alloc_tfm(alg, 0);
+ tfm = __crypto_alloc_tfm(alg, type, mask);
if (!IS_ERR(tfm))
return tfm;
@@ -466,7 +419,6 @@ void crypto_free_tfm(struct crypto_tfm *tfm)
kfree(tfm);
}
-EXPORT_SYMBOL_GPL(crypto_alloc_tfm);
EXPORT_SYMBOL_GPL(crypto_free_tfm);
int crypto_has_alg(const char *name, u32 type, u32 mask)
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