1*b0d17251Schristos /*
2*b0d17251Schristos * Copyright 2019-2020 The OpenSSL Project Authors. All Rights Reserved.
3*b0d17251Schristos *
4*b0d17251Schristos * Licensed under the Apache License 2.0 (the "License"). You may not use
5*b0d17251Schristos * this file except in compliance with the License. You can obtain a copy
6*b0d17251Schristos * in the file LICENSE in the source distribution or at
7*b0d17251Schristos * https://www.openssl.org/source/license.html
8*b0d17251Schristos */
9*b0d17251Schristos
10*b0d17251Schristos /* Dispatch functions for cast cipher modes ecb, cbc, ofb, cfb */
11*b0d17251Schristos
12*b0d17251Schristos #include "cipher_sm4.h"
13*b0d17251Schristos #include "prov/implementations.h"
14*b0d17251Schristos #include "prov/providercommon.h"
15*b0d17251Schristos
16*b0d17251Schristos static OSSL_FUNC_cipher_freectx_fn sm4_freectx;
17*b0d17251Schristos static OSSL_FUNC_cipher_dupctx_fn sm4_dupctx;
18*b0d17251Schristos
sm4_freectx(void * vctx)19*b0d17251Schristos static void sm4_freectx(void *vctx)
20*b0d17251Schristos {
21*b0d17251Schristos PROV_SM4_CTX *ctx = (PROV_SM4_CTX *)vctx;
22*b0d17251Schristos
23*b0d17251Schristos ossl_cipher_generic_reset_ctx((PROV_CIPHER_CTX *)vctx);
24*b0d17251Schristos OPENSSL_clear_free(ctx, sizeof(*ctx));
25*b0d17251Schristos }
26*b0d17251Schristos
sm4_dupctx(void * ctx)27*b0d17251Schristos static void *sm4_dupctx(void *ctx)
28*b0d17251Schristos {
29*b0d17251Schristos PROV_SM4_CTX *in = (PROV_SM4_CTX *)ctx;
30*b0d17251Schristos PROV_SM4_CTX *ret;
31*b0d17251Schristos
32*b0d17251Schristos if (!ossl_prov_is_running())
33*b0d17251Schristos return NULL;
34*b0d17251Schristos
35*b0d17251Schristos ret = OPENSSL_malloc(sizeof(*ret));
36*b0d17251Schristos if (ret == NULL) {
37*b0d17251Schristos ERR_raise(ERR_LIB_PROV, ERR_R_MALLOC_FAILURE);
38*b0d17251Schristos return NULL;
39*b0d17251Schristos }
40*b0d17251Schristos in->base.hw->copyctx(&ret->base, &in->base);
41*b0d17251Schristos
42*b0d17251Schristos return ret;
43*b0d17251Schristos }
44*b0d17251Schristos
45*b0d17251Schristos /* ossl_sm4128ecb_functions */
46*b0d17251Schristos IMPLEMENT_generic_cipher(sm4, SM4, ecb, ECB, 0, 128, 128, 0, block)
47*b0d17251Schristos /* ossl_sm4128cbc_functions */
48*b0d17251Schristos IMPLEMENT_generic_cipher(sm4, SM4, cbc, CBC, 0, 128, 128, 128, block)
49*b0d17251Schristos /* ossl_sm4128ctr_functions */
50*b0d17251Schristos IMPLEMENT_generic_cipher(sm4, SM4, ctr, CTR, 0, 128, 8, 128, stream)
51*b0d17251Schristos /* ossl_sm4128ofb128_functions */
52*b0d17251Schristos IMPLEMENT_generic_cipher(sm4, SM4, ofb128, OFB, 0, 128, 8, 128, stream)
53*b0d17251Schristos /* ossl_sm4128cfb128_functions */
54*b0d17251Schristos IMPLEMENT_generic_cipher(sm4, SM4, cfb128, CFB, 0, 128, 8, 128, stream)
55