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c85d5e02 SL |
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 | ||
ae4186b0 DMSP |
10 | #ifndef OSSL_PROVIDERS_DIGESTCOMMON_H |
11 | # define OSSL_PROVIDERS_DIGESTCOMMON_H | |
c85d5e02 SL |
12 | |
13 | # include <openssl/core_numbers.h> | |
14 | # include <openssl/core_names.h> | |
15 | # include <openssl/params.h> | |
16 | ||
17 | # ifdef __cplusplus | |
18 | extern "C" { | |
19 | # endif | |
20 | ||
21 | #define PROV_FUNC_DIGEST_GET_PARAM(name, blksize, dgstsize, flags) \ | |
22 | static OSSL_OP_digest_get_params_fn name##_get_params; \ | |
23 | static int name##_get_params(OSSL_PARAM params[]) \ | |
24 | { \ | |
25 | return digest_default_get_params(params, blksize, dgstsize, flags); \ | |
26 | } | |
27 | ||
28 | #define PROV_DISPATCH_FUNC_DIGEST_GET_PARAMS(name) \ | |
29 | { OSSL_FUNC_DIGEST_GET_PARAMS, (void (*)(void))name##_get_params }, \ | |
30 | { OSSL_FUNC_DIGEST_GETTABLE_PARAMS, \ | |
31 | (void (*)(void))digest_default_gettable_params } | |
32 | ||
33 | # define PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_START( \ | |
34 | name, CTX, blksize, dgstsize, flags, init, upd, fin) \ | |
35 | static OSSL_OP_digest_newctx_fn name##_newctx; \ | |
36 | static OSSL_OP_digest_freectx_fn name##_freectx; \ | |
37 | static OSSL_OP_digest_dupctx_fn name##_dupctx; \ | |
38 | static void *name##_newctx(void *prov_ctx) \ | |
39 | { \ | |
40 | CTX *ctx = OPENSSL_zalloc(sizeof(*ctx)); \ | |
41 | return ctx; \ | |
42 | } \ | |
43 | static void name##_freectx(void *vctx) \ | |
44 | { \ | |
45 | CTX *ctx = (CTX *)vctx; \ | |
46 | OPENSSL_clear_free(ctx, sizeof(*ctx)); \ | |
47 | } \ | |
48 | static void *name##_dupctx(void *ctx) \ | |
49 | { \ | |
50 | CTX *in = (CTX *)ctx; \ | |
51 | CTX *ret = OPENSSL_malloc(sizeof(*ret)); \ | |
52 | *ret = *in; \ | |
53 | return ret; \ | |
54 | } \ | |
55 | static OSSL_OP_digest_final_fn name##_internal_final; \ | |
56 | static int name##_internal_final(void *ctx, unsigned char *out, size_t *outl, \ | |
57 | size_t outsz) \ | |
58 | { \ | |
59 | if (outsz >= dgstsize && fin(out, ctx)) { \ | |
60 | *outl = dgstsize; \ | |
61 | return 1; \ | |
62 | } \ | |
63 | return 0; \ | |
64 | } \ | |
65 | PROV_FUNC_DIGEST_GET_PARAM(name, blksize, dgstsize, flags) \ | |
66 | const OSSL_DISPATCH name##_functions[] = { \ | |
67 | { OSSL_FUNC_DIGEST_NEWCTX, (void (*)(void))name##_newctx }, \ | |
68 | { OSSL_FUNC_DIGEST_INIT, (void (*)(void))init }, \ | |
69 | { OSSL_FUNC_DIGEST_UPDATE, (void (*)(void))upd }, \ | |
70 | { OSSL_FUNC_DIGEST_FINAL, (void (*)(void))name##_internal_final }, \ | |
71 | { OSSL_FUNC_DIGEST_FREECTX, (void (*)(void))name##_freectx }, \ | |
72 | { OSSL_FUNC_DIGEST_DUPCTX, (void (*)(void))name##_dupctx }, \ | |
73 | PROV_DISPATCH_FUNC_DIGEST_GET_PARAMS(name) | |
74 | ||
75 | # define PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_END \ | |
76 | { 0, NULL } \ | |
77 | }; | |
78 | ||
79 | # define IMPLEMENT_digest_functions( \ | |
80 | name, CTX, blksize, dgstsize, flags, init, upd, fin) \ | |
81 | PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_START(name, CTX, blksize, dgstsize, flags, \ | |
82 | init, upd, fin), \ | |
83 | PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_END | |
84 | ||
85 | # define IMPLEMENT_digest_functions_with_settable_ctx( \ | |
86 | name, CTX, blksize, dgstsize, flags, init, upd, fin, \ | |
87 | settable_ctx_params, set_ctx_params) \ | |
88 | PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_START(name, CTX, blksize, dgstsize, flags, \ | |
89 | init, upd, fin), \ | |
90 | { OSSL_FUNC_DIGEST_SETTABLE_CTX_PARAMS, (void (*)(void))settable_ctx_params }, \ | |
91 | { OSSL_FUNC_DIGEST_SET_CTX_PARAMS, (void (*)(void))set_ctx_params }, \ | |
92 | PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_END | |
93 | ||
94 | ||
95 | const OSSL_PARAM *digest_default_gettable_params(void); | |
1c3ace68 | 96 | int digest_default_get_params(OSSL_PARAM params[], size_t blksz, size_t paramsz, |
c85d5e02 SL |
97 | unsigned long flags); |
98 | ||
99 | # ifdef __cplusplus | |
100 | } | |
101 | # endif | |
102 | ||
ae4186b0 | 103 | #endif /* OSSL_PROVIDERS_DIGESTCOMMON_H */ |