/*
 * Copyright 2019-2023 The OpenSSL Project Authors. All Rights Reserved.
 *
 * Licensed under the Apache License 2.0 (the "License").  You may not use
 * this file except in compliance with the License.  You can obtain a copy
 * in the file LICENSE in the source distribution or at
 * https://www.openssl.org/source/license.html
 */

#ifndef OSSL_PROV_CIPHERCOMMON_AEAD_H
#define OSSL_PROV_CIPHERCOMMON_AEAD_H
#pragma once

#define UNINITIALISED_SIZET ((size_t)-1)

#define AEAD_FLAGS (PROV_CIPHER_FLAG_AEAD | PROV_CIPHER_FLAG_CUSTOM_IV)

#define IMPLEMENT_aead_cipher(alg, lc, UCMODE, flags, kbits, blkbits, ivbits)   \
    static OSSL_FUNC_cipher_get_params_fn alg##_##kbits##_##lc##_get_params;    \
    static int alg##_##kbits##_##lc##_get_params(OSSL_PARAM params[])           \
    {                                                                           \
        return ossl_cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, \
            flags, kbits, blkbits, ivbits);                                     \
    }                                                                           \
    static OSSL_FUNC_cipher_newctx_fn alg##kbits##lc##_newctx;                  \
    static void *alg##kbits##lc##_newctx(void *provctx)                         \
    {                                                                           \
        return alg##_##lc##_newctx(provctx, kbits);                             \
    }                                                                           \
    static void *alg##kbits##lc##_dupctx(void *src)                             \
    {                                                                           \
        return alg##_##lc##_dupctx(src);                                        \
    }                                                                           \
    const OSSL_DISPATCH ossl_##alg##kbits##lc##_functions[] = {                 \
        { OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))alg##kbits##lc##_newctx },   \
        { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))alg##_##lc##_freectx },     \
        { OSSL_FUNC_CIPHER_DUPCTX, (void (*)(void))alg##kbits##lc##_dupctx },   \
        { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void))ossl_##lc##_einit },   \
        { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void))ossl_##lc##_dinit },   \
        { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void))ossl_##lc##_stream_update }, \
        { OSSL_FUNC_CIPHER_FINAL, (void (*)(void))ossl_##lc##_stream_final },   \
        { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void))ossl_##lc##_cipher },        \
        { OSSL_FUNC_CIPHER_GET_PARAMS,                                          \
            (void (*)(void))alg##_##kbits##_##lc##_get_params },                \
        { OSSL_FUNC_CIPHER_GET_CTX_PARAMS,                                      \
            (void (*)(void))ossl_##lc##_get_ctx_params },                       \
        { OSSL_FUNC_CIPHER_SET_CTX_PARAMS,                                      \
            (void (*)(void))ossl_##lc##_set_ctx_params },                       \
        { OSSL_FUNC_CIPHER_GETTABLE_PARAMS,                                     \
            (void (*)(void))ossl_cipher_generic_gettable_params },              \
        { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS,                                 \
            (void (*)(void))ossl_cipher_aead_gettable_ctx_params },             \
        { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS,                                 \
            (void (*)(void))ossl_cipher_aead_settable_ctx_params },             \
        OSSL_DISPATCH_END                                                       \
    }

#endif
