1/*
2 * Copyright 2019 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#define UNINITIALISED_SIZET ((size_t)-1)
11
12/* TODO(3.0) Figure out what flags are really needed */
13#define AEAD_FLAGS (EVP_CIPH_FLAG_AEAD_CIPHER \
14 | EVP_CIPH_CUSTOM_IV \
15 | EVP_CIPH_ALWAYS_CALL_INIT \
16 | EVP_CIPH_CTRL_INIT \
17 | EVP_CIPH_CUSTOM_COPY)
18
19#define IMPLEMENT_aead_cipher(alg, lc, UCMODE, flags, kbits, blkbits, ivbits) \
20static OSSL_OP_cipher_get_params_fn alg##_##kbits##_##lc##_get_params; \
21static int alg##_##kbits##_##lc##_get_params(OSSL_PARAM params[]) \
22{ \
23 return cipher_generic_get_params(params, EVP_CIPH_##UCMODE##_MODE, \
24 flags, kbits, blkbits, ivbits); \
25} \
26static OSSL_OP_cipher_newctx_fn alg##kbits##lc##_newctx; \
27static void * alg##kbits##lc##_newctx(void *provctx) \
28{ \
29 return alg##_##lc##_newctx(provctx, kbits); \
30} \
31const OSSL_DISPATCH alg##kbits##lc##_functions[] = { \
32 { OSSL_FUNC_CIPHER_NEWCTX, (void (*)(void))alg##kbits##lc##_newctx }, \
33 { OSSL_FUNC_CIPHER_FREECTX, (void (*)(void))alg##_##lc##_freectx }, \
34 { OSSL_FUNC_CIPHER_ENCRYPT_INIT, (void (*)(void)) lc##_einit }, \
35 { OSSL_FUNC_CIPHER_DECRYPT_INIT, (void (*)(void)) lc##_dinit }, \
36 { OSSL_FUNC_CIPHER_UPDATE, (void (*)(void)) lc##_stream_update }, \
37 { OSSL_FUNC_CIPHER_FINAL, (void (*)(void)) lc##_stream_final }, \
38 { OSSL_FUNC_CIPHER_CIPHER, (void (*)(void)) lc##_cipher }, \
39 { OSSL_FUNC_CIPHER_GET_PARAMS, \
40 (void (*)(void)) alg##_##kbits##_##lc##_get_params }, \
41 { OSSL_FUNC_CIPHER_GET_CTX_PARAMS, \
42 (void (*)(void)) lc##_get_ctx_params }, \
43 { OSSL_FUNC_CIPHER_SET_CTX_PARAMS, \
44 (void (*)(void)) lc##_set_ctx_params }, \
45 { OSSL_FUNC_CIPHER_GETTABLE_PARAMS, \
46 (void (*)(void))cipher_generic_gettable_params }, \
47 { OSSL_FUNC_CIPHER_GETTABLE_CTX_PARAMS, \
48 (void (*)(void))cipher_aead_gettable_ctx_params }, \
49 { OSSL_FUNC_CIPHER_SETTABLE_CTX_PARAMS, \
50 (void (*)(void))cipher_aead_settable_ctx_params }, \
51 { 0, NULL } \
52}
53