#include <string.h>
#include <openssl/evp.h>
-#include "internal/evp_int.h"
+#include "crypto/evp.h"
#include "internal/provider.h"
-#include "evp_locl.h"
+#include "evp_local.h"
EVP_CIPHER *EVP_CIPHER_meth_new(int cipher_type, int block_size, int key_len)
{
- EVP_CIPHER *cipher = OPENSSL_zalloc(sizeof(EVP_CIPHER));
+ EVP_CIPHER *cipher = evp_cipher_new();
if (cipher != NULL) {
cipher->nid = cipher_type;
cipher->block_size = block_size;
cipher->key_len = key_len;
- cipher->lock = CRYPTO_THREAD_lock_new();
- if (cipher->lock == NULL) {
- OPENSSL_free(cipher);
- return NULL;
- }
- cipher->refcnt = 1;
}
return cipher;
}
EVP_CIPHER *EVP_CIPHER_meth_dup(const EVP_CIPHER *cipher)
{
- EVP_CIPHER *to = EVP_CIPHER_meth_new(cipher->nid, cipher->block_size,
- cipher->key_len);
+ EVP_CIPHER *to = NULL;
- if (to != NULL) {
+ /*
+ * Non-legacy EVP_CIPHERs can't be duplicated like this.
+ * Use EVP_CIPHER_up_ref() instead.
+ */
+ if (cipher->prov != NULL)
+ return NULL;
+
+ if ((to = EVP_CIPHER_meth_new(cipher->nid, cipher->block_size,
+ cipher->key_len)) != NULL) {
CRYPTO_RWLOCK *lock = to->lock;
memcpy(to, cipher, sizeof(*to));
void EVP_CIPHER_meth_free(EVP_CIPHER *cipher)
{
- if (cipher != NULL) {
- int i;
-
- CRYPTO_DOWN_REF(&cipher->refcnt, &i, cipher->lock);
- if (i > 0)
- return;
- ossl_provider_free(cipher->prov);
- CRYPTO_THREAD_lock_free(cipher->lock);
- OPENSSL_free(cipher);
- }
-}
-
-int EVP_CIPHER_upref(EVP_CIPHER *cipher)
-{
- int ref = 0;
-
- CRYPTO_UP_REF(&cipher->refcnt, &ref, cipher->lock);
- return 1;
+ EVP_CIPHER_free(cipher);
}
int EVP_CIPHER_meth_set_iv_length(EVP_CIPHER *cipher, int iv_len)
{
+ if (cipher->iv_len != 0)
+ return 0;
+
cipher->iv_len = iv_len;
return 1;
}
int EVP_CIPHER_meth_set_flags(EVP_CIPHER *cipher, unsigned long flags)
{
+ if (cipher->flags != 0)
+ return 0;
+
cipher->flags = flags;
return 1;
}
int EVP_CIPHER_meth_set_impl_ctx_size(EVP_CIPHER *cipher, int ctx_size)
{
+ if (cipher->ctx_size != 0)
+ return 0;
+
cipher->ctx_size = ctx_size;
return 1;
}
const unsigned char *iv,
int enc))
{
+ if (cipher->init != NULL)
+ return 0;
+
cipher->init = init;
return 1;
}
const unsigned char *in,
size_t inl))
{
+ if (cipher->do_cipher != NULL)
+ return 0;
+
cipher->do_cipher = do_cipher;
return 1;
}
int EVP_CIPHER_meth_set_cleanup(EVP_CIPHER *cipher,
int (*cleanup) (EVP_CIPHER_CTX *))
{
+ if (cipher->cleanup != NULL)
+ return 0;
+
cipher->cleanup = cleanup;
return 1;
}
int (*set_asn1_parameters) (EVP_CIPHER_CTX *,
ASN1_TYPE *))
{
+ if (cipher->set_asn1_parameters != NULL)
+ return 0;
+
cipher->set_asn1_parameters = set_asn1_parameters;
return 1;
}
int (*get_asn1_parameters) (EVP_CIPHER_CTX *,
ASN1_TYPE *))
{
+ if (cipher->get_asn1_parameters != NULL)
+ return 0;
+
cipher->get_asn1_parameters = get_asn1_parameters;
return 1;
}
int (*ctrl) (EVP_CIPHER_CTX *, int type,
int arg, void *ptr))
{
+ if (cipher->ctrl != NULL)
+ return 0;
+
cipher->ctrl = ctrl;
return 1;
}