| /* |
| * Copyright 2019-2021 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_PROVIDERS_DIGESTCOMMON_H |
| # define OSSL_PROVIDERS_DIGESTCOMMON_H |
| |
| # include <openssl/core_dispatch.h> |
| # include <openssl/core_names.h> |
| # include <openssl/params.h> |
| # include "prov/providercommon.h" |
| |
| /* Internal flags that can be queried */ |
| #define PROV_DIGEST_FLAG_XOF 0x0001 |
| #define PROV_DIGEST_FLAG_ALGID_ABSENT 0x0002 |
| |
| # ifdef __cplusplus |
| extern "C" { |
| # endif |
| |
| #define PROV_FUNC_DIGEST_GET_PARAM(name, blksize, dgstsize, flags) \ |
| static OSSL_FUNC_digest_get_params_fn name##_get_params; \ |
| static int name##_get_params(OSSL_PARAM params[]) \ |
| { \ |
| return ossl_digest_default_get_params(params, blksize, dgstsize, flags); \ |
| } |
| |
| #define PROV_DISPATCH_FUNC_DIGEST_GET_PARAMS(name) \ |
| { OSSL_FUNC_DIGEST_GET_PARAMS, (void (*)(void))name##_get_params }, \ |
| { OSSL_FUNC_DIGEST_GETTABLE_PARAMS, \ |
| (void (*)(void))ossl_digest_default_gettable_params } |
| |
| # define PROV_FUNC_DIGEST_FINAL(name, dgstsize, fin) \ |
| static OSSL_FUNC_digest_final_fn name##_internal_final; \ |
| static int name##_internal_final(void *ctx, unsigned char *out, size_t *outl, \ |
| size_t outsz) \ |
| { \ |
| if (ossl_prov_is_running() && outsz >= dgstsize && fin(out, ctx)) { \ |
| *outl = dgstsize; \ |
| return 1; \ |
| } \ |
| return 0; \ |
| } |
| |
| # define PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_START( \ |
| name, CTX, blksize, dgstsize, flags, upd, fin) \ |
| static OSSL_FUNC_digest_newctx_fn name##_newctx; \ |
| static OSSL_FUNC_digest_freectx_fn name##_freectx; \ |
| static OSSL_FUNC_digest_dupctx_fn name##_dupctx; \ |
| static void *name##_newctx(void *prov_ctx) \ |
| { \ |
| CTX *ctx = ossl_prov_is_running() ? OPENSSL_zalloc(sizeof(*ctx)) : NULL; \ |
| return ctx; \ |
| } \ |
| static void name##_freectx(void *vctx) \ |
| { \ |
| CTX *ctx = (CTX *)vctx; \ |
| OPENSSL_clear_free(ctx, sizeof(*ctx)); \ |
| } \ |
| static void *name##_dupctx(void *ctx) \ |
| { \ |
| CTX *in = (CTX *)ctx; \ |
| CTX *ret = ossl_prov_is_running() ? OPENSSL_malloc(sizeof(*ret)) : NULL; \ |
| if (ret != NULL) \ |
| *ret = *in; \ |
| return ret; \ |
| } \ |
| PROV_FUNC_DIGEST_FINAL(name, dgstsize, fin) \ |
| PROV_FUNC_DIGEST_GET_PARAM(name, blksize, dgstsize, flags) \ |
| const OSSL_DISPATCH ossl_##name##_functions[] = { \ |
| { OSSL_FUNC_DIGEST_NEWCTX, (void (*)(void))name##_newctx }, \ |
| { OSSL_FUNC_DIGEST_UPDATE, (void (*)(void))upd }, \ |
| { OSSL_FUNC_DIGEST_FINAL, (void (*)(void))name##_internal_final }, \ |
| { OSSL_FUNC_DIGEST_FREECTX, (void (*)(void))name##_freectx }, \ |
| { OSSL_FUNC_DIGEST_DUPCTX, (void (*)(void))name##_dupctx }, \ |
| PROV_DISPATCH_FUNC_DIGEST_GET_PARAMS(name) |
| |
| # define PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_END \ |
| { 0, NULL } \ |
| }; |
| |
| # define IMPLEMENT_digest_functions( \ |
| name, CTX, blksize, dgstsize, flags, init, upd, fin) \ |
| static OSSL_FUNC_digest_init_fn name##_internal_init; \ |
| static int name##_internal_init(void *ctx, \ |
| ossl_unused const OSSL_PARAM params[]) \ |
| { \ |
| return ossl_prov_is_running() && init(ctx); \ |
| } \ |
| PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_START(name, CTX, blksize, dgstsize, flags, \ |
| upd, fin), \ |
| { OSSL_FUNC_DIGEST_INIT, (void (*)(void))name##_internal_init }, \ |
| PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_END |
| |
| # define IMPLEMENT_digest_functions_with_settable_ctx( \ |
| name, CTX, blksize, dgstsize, flags, init, upd, fin, \ |
| settable_ctx_params, set_ctx_params) \ |
| static OSSL_FUNC_digest_init_fn name##_internal_init; \ |
| static int name##_internal_init(void *ctx, const OSSL_PARAM params[]) \ |
| { \ |
| return ossl_prov_is_running() \ |
| && init(ctx) \ |
| && set_ctx_params(ctx, params); \ |
| } \ |
| PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_START(name, CTX, blksize, dgstsize, flags, \ |
| upd, fin), \ |
| { OSSL_FUNC_DIGEST_INIT, (void (*)(void))name##_internal_init }, \ |
| { OSSL_FUNC_DIGEST_SETTABLE_CTX_PARAMS, (void (*)(void))settable_ctx_params }, \ |
| { OSSL_FUNC_DIGEST_SET_CTX_PARAMS, (void (*)(void))set_ctx_params }, \ |
| PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_END |
| |
| |
| const OSSL_PARAM *ossl_digest_default_gettable_params(void *provctx); |
| int ossl_digest_default_get_params(OSSL_PARAM params[], size_t blksz, |
| size_t paramsz, unsigned long flags); |
| |
| # ifdef __cplusplus |
| } |
| # endif |
| |
| #endif /* OSSL_PROVIDERS_DIGESTCOMMON_H */ |