1/*
2 * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
3 *
4 * Licensed under the Apache License 2.0 (the "License").  You may not use
5 * this file except in compliance with the License.  You can obtain a copy
6 * in the file LICENSE in the source distribution or at
7 * https://www.openssl.org/source/license.html
8 */
9
10/* Dispatch functions for Seed cipher modes ecb, cbc, ofb, cfb */
11
12/*
13 * SEED low level APIs are deprecated for public use, but still ok for
14 * internal use.
15 */
16#include "internal/deprecated.h"
17
18#include "cipher_seed.h"
19#include "prov/implementations.h"
20#include "prov/providercommon.h"
21
22static OSSL_FUNC_cipher_freectx_fn seed_freectx;
23static OSSL_FUNC_cipher_dupctx_fn seed_dupctx;
24
25static void seed_freectx(void *vctx)
26{
27    PROV_SEED_CTX *ctx = (PROV_SEED_CTX *)vctx;
28
29    ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
30    OPENSSL_clear_free(ctx,  sizeof(*ctx));
31}
32
33static void *seed_dupctx(void *ctx)
34{
35    PROV_SEED_CTX *in = (PROV_SEED_CTX *)ctx;
36    PROV_SEED_CTX *ret;
37
38    if (!ossl_prov_is_running())
39        return NULL;
40
41    ret = OPENSSL_malloc(sizeof(*ret));
42    if (ret == NULL) {
43        ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
44        return NULL;
45    }
46    *ret = *in;
47
48    return ret;
49}
50
51/* ossl_seed128ecb_functions */
52IMPLEMENT_generic_cipher(seed, SEED, ecb, ECB, 0, 128, 128, 0, block)
53/* ossl_seed128cbc_functions */
54IMPLEMENT_generic_cipher(seed, SEED, cbc, CBC, 0, 128, 128, 128, block)
55/* ossl_seed128ofb128_functions */
56IMPLEMENT_generic_cipher(seed, SEED, ofb128, OFB, 0, 128, 8, 128, stream)
57/* ossl_seed128cfb128_functions */
58IMPLEMENT_generic_cipher(seed, SEED, cfb128,  CFB, 0, 128, 8, 128, stream)
59