diff options
Diffstat (limited to 'crypto/openssl/providers/implementations/include/prov/digestcommon.h')
| -rw-r--r-- | crypto/openssl/providers/implementations/include/prov/digestcommon.h | 133 |
1 files changed, 133 insertions, 0 deletions
diff --git a/crypto/openssl/providers/implementations/include/prov/digestcommon.h b/crypto/openssl/providers/implementations/include/prov/digestcommon.h new file mode 100644 index 000000000000..332d47349027 --- /dev/null +++ b/crypto/openssl/providers/implementations/include/prov/digestcommon.h @@ -0,0 +1,133 @@ +/* + * 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; \ +} \ +static void name##_copyctx(void *voutctx, void *vinctx) \ +{ \ + CTX *outctx = (CTX *)voutctx; \ + CTX *inctx = (CTX *)vinctx; \ + *outctx = *inctx; \ +} \ +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 }, \ + { OSSL_FUNC_DIGEST_COPYCTX, (void (*)(void))name##_copyctx }, \ + 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 */ |