mirror of https://github.com/openssl/openssl.git
127 lines
7.3 KiB
C
127 lines
7.3 KiB
C
/*
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* Copyright 2019-2021 The OpenSSL Project Authors. All Rights Reserved.
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*
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* Licensed under the Apache License 2.0 (the "License"). You may not use
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* this file except in compliance with the License. You can obtain a copy
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* in the file LICENSE in the source distribution or at
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* https://www.openssl.org/source/license.html
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*/
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#ifndef OSSL_PROVIDERS_DIGESTCOMMON_H
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# define OSSL_PROVIDERS_DIGESTCOMMON_H
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# include <openssl/core_dispatch.h>
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# include <openssl/core_names.h>
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# include <openssl/params.h>
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# include "prov/providercommon.h"
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/* Internal flags that can be queried */
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#define PROV_DIGEST_FLAG_XOF 0x0001
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#define PROV_DIGEST_FLAG_ALGID_ABSENT 0x0002
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# ifdef __cplusplus
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extern "C" {
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# endif
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#define PROV_FUNC_DIGEST_GET_PARAM(name, blksize, dgstsize, flags) \
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static OSSL_FUNC_digest_get_params_fn name##_get_params; \
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static int name##_get_params(OSSL_PARAM params[]) \
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{ \
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return ossl_digest_default_get_params(params, blksize, dgstsize, flags); \
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}
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#define PROV_DISPATCH_FUNC_DIGEST_GET_PARAMS(name) \
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{ OSSL_FUNC_DIGEST_GET_PARAMS, (void (*)(void))name##_get_params }, \
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{ OSSL_FUNC_DIGEST_GETTABLE_PARAMS, \
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(void (*)(void))ossl_digest_default_gettable_params }
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# define PROV_FUNC_DIGEST_FINAL(name, dgstsize, fin) \
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static OSSL_FUNC_digest_final_fn name##_internal_final; \
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static int name##_internal_final(void *ctx, unsigned char *out, size_t *outl, \
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size_t outsz) \
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{ \
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if (ossl_prov_is_running() && outsz >= dgstsize && fin(out, ctx)) { \
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*outl = dgstsize; \
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return 1; \
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} \
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return 0; \
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}
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# define PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_START( \
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name, CTX, blksize, dgstsize, flags, upd, fin) \
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static OSSL_FUNC_digest_newctx_fn name##_newctx; \
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static OSSL_FUNC_digest_freectx_fn name##_freectx; \
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static OSSL_FUNC_digest_dupctx_fn name##_dupctx; \
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static void *name##_newctx(void *prov_ctx) \
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{ \
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CTX *ctx = ossl_prov_is_running() ? OPENSSL_zalloc(sizeof(*ctx)) : NULL; \
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return ctx; \
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} \
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static void name##_freectx(void *vctx) \
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{ \
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CTX *ctx = (CTX *)vctx; \
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OPENSSL_clear_free(ctx, sizeof(*ctx)); \
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} \
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static void *name##_dupctx(void *ctx) \
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{ \
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CTX *in = (CTX *)ctx; \
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CTX *ret = ossl_prov_is_running() ? OPENSSL_malloc(sizeof(*ret)) : NULL; \
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if (ret != NULL) \
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*ret = *in; \
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return ret; \
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} \
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PROV_FUNC_DIGEST_FINAL(name, dgstsize, fin) \
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PROV_FUNC_DIGEST_GET_PARAM(name, blksize, dgstsize, flags) \
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const OSSL_DISPATCH ossl_##name##_functions[] = { \
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{ OSSL_FUNC_DIGEST_NEWCTX, (void (*)(void))name##_newctx }, \
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{ OSSL_FUNC_DIGEST_UPDATE, (void (*)(void))upd }, \
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{ OSSL_FUNC_DIGEST_FINAL, (void (*)(void))name##_internal_final }, \
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{ OSSL_FUNC_DIGEST_FREECTX, (void (*)(void))name##_freectx }, \
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{ OSSL_FUNC_DIGEST_DUPCTX, (void (*)(void))name##_dupctx }, \
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PROV_DISPATCH_FUNC_DIGEST_GET_PARAMS(name)
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# define PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_END \
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{ 0, NULL } \
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};
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# define IMPLEMENT_digest_functions( \
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name, CTX, blksize, dgstsize, flags, init, upd, fin) \
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static OSSL_FUNC_digest_init_fn name##_internal_init; \
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static int name##_internal_init(void *ctx, \
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ossl_unused const OSSL_PARAM params[]) \
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{ \
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return ossl_prov_is_running() && init(ctx); \
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} \
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PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_START(name, CTX, blksize, dgstsize, flags, \
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upd, fin), \
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{ OSSL_FUNC_DIGEST_INIT, (void (*)(void))name##_internal_init }, \
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PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_END
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# define IMPLEMENT_digest_functions_with_settable_ctx( \
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name, CTX, blksize, dgstsize, flags, init, upd, fin, \
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settable_ctx_params, set_ctx_params) \
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static OSSL_FUNC_digest_init_fn name##_internal_init; \
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static int name##_internal_init(void *ctx, const OSSL_PARAM params[]) \
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{ \
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return ossl_prov_is_running() \
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&& init(ctx) \
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&& set_ctx_params(ctx, params); \
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} \
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PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_START(name, CTX, blksize, dgstsize, flags, \
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upd, fin), \
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{ OSSL_FUNC_DIGEST_INIT, (void (*)(void))name##_internal_init }, \
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{ OSSL_FUNC_DIGEST_SETTABLE_CTX_PARAMS, (void (*)(void))settable_ctx_params }, \
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{ OSSL_FUNC_DIGEST_SET_CTX_PARAMS, (void (*)(void))set_ctx_params }, \
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PROV_DISPATCH_FUNC_DIGEST_CONSTRUCT_END
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const OSSL_PARAM *ossl_digest_default_gettable_params(void *provctx);
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int ossl_digest_default_get_params(OSSL_PARAM params[], size_t blksz,
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size_t paramsz, unsigned long flags);
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# ifdef __cplusplus
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}
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# endif
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#endif /* OSSL_PROVIDERS_DIGESTCOMMON_H */
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