/* Only for EVP source */
#include "evp_local.h"
- void *evp_generic_fetch(OPENSSL_CTX *libctx, int operation_id,
+ void *evp_generic_fetch(OSSL_LIB_CTX *libctx, int operation_id,
const char *name, const char *properties,
void *(*new_method)(int name_id,
const OSSL_DISPATCH *fns,
int (*up_ref_method)(void *),
void (*free_method)(void *));
- void *evp_generic_fetch_by_number(OPENSSL_CTX *ctx, int operation_id,
+ void *evp_generic_fetch_by_number(OSSL_LIB_CTX *ctx, int operation_id,
int name_id, const char *properties,
void *(*new_method)(int name_id,
const OSSL_DISPATCH *fns,
it to create an EVP method with the help of the functions
I<new_method>, I<up_ref_method>, and I<free_method>.
-evp_generic_fetch_by_number() does the same thing as evp_generic_fetch(),
-but takes a I<name_id> instead of a number.
-I<name_id> must always be non-zero; as a matter of fact, it being zero
+evp_generic_fetch_by_number() does the same thing as evp_generic_fetch(),
+but takes a numeric I<name_id> instead of a name.
+I<name_id> must always be nonzero; as a matter of fact, it being zero
is considered a programming error.
This is meant to be used when one method needs to fetch an associated
other method, and is typically called from inside the given function
B<EVP_FOO>.
To begin with, let's assume something like this in
-F<include/openssl/core_numbers.h>:
-
- #define OSSL_OP_FOO 100
-
- #define OSSL_OP_FOO_NEWCTX_FUNC 2001
- #define OSSL_OP_FOO_INIT 2002
- #define OSSL_OP_FOO_OPERATE 2003
- #define OSSL_OP_FOO_CLEANCTX_FUNC 2004
- #define OSSL_OP_FOO_FREECTX_FUNC 2005
- OSSL_CORE_MAKE_FUNC(void *,OP_foo_newctx,(void))
- OSSL_CORE_MAKE_FUNC(int,OP_foo_init,(void *vctx))
- OSSL_CORE_MAKE_FUNC(int,OP_foo_operate,(void *vctx,
- unsigned char *out, size_t *out_l,
- unsigned char *in, size_t in_l))
- OSSL_CORE_MAKE_FUNC(void,OP_foo_cleanctx,(void *vctx))
- OSSL_CORE_MAKE_FUNC(void,OP_foo_freectx,(void *vctx))
+F<include/openssl/core_dispatch.h>:
+
+ #define OSSL_OP_FOO 100
+
+ #define OSSL_FUNC_FOO_NEWCTX_FUNC 2001
+ #define OSSL_FUNC_FOO_INIT 2002
+ #define OSSL_FUNC_FOO_OPERATE 2003
+ #define OSSL_FUNC_FOO_CLEANCTX_FUNC 2004
+ #define OSSL_FUNC_FOO_FREECTX_FUNC 2005
+
+ OSSL_CORE_MAKE_FUNC(void *, foo_newctx, (void))
+ OSSL_CORE_MAKE_FUNC(int, foo_init, (void *vctx))
+ OSSL_CORE_MAKE_FUNC(int, foo_operate, (void *vctx,
+ unsigned char *out, size_t *out_l,
+ unsigned char *in, size_t in_l))
+ OSSL_CORE_MAKE_FUNC(void, foo_cleanctx, (void *vctx))
+ OSSL_CORE_MAKE_FUNC(void, foo_freectx, (void *vctx))
And here's the implementation of the FOO method fetcher:
OSSL_PROVIDER *prov;
int name_id;
CRYPTO_REF_COUNT refcnt;
- OSSL_OP_foo_newctx_fn *newctx;
- OSSL_OP_foo_init_fn *init;
- OSSL_OP_foo_operate_fn *operate;
- OSSL_OP_foo_cleanctx_fn *cleanctx;
- OSSL_OP_foo_freectx_fn *freectx;
+ OSSL_FUNC_foo_newctx_fn *newctx;
+ OSSL_FUNC_foo_init_fn *init;
+ OSSL_FUNC_foo_operate_fn *operate;
+ OSSL_FUNC_foo_cleanctx_fn *cleanctx;
+ OSSL_FUNC_foo_freectx_fn *freectx;
};
/*
* In this example, we have a public method creator and destructor.
* It's not absolutely necessary, but is in the spirit of OpenSSL.
*/
- EVP_FOO *EVP_FOO_meth_from_dispatch(int name_id,
- const OSSL_DISPATCH *fns,
- OSSL_PROVIDER *prov,
- void *data)
+ EVP_FOO *EVP_FOO_meth_from_algorithm(int name_id,
+ const OSSL_DISPATCH *fns,
+ OSSL_PROVIDER *prov,
+ void *data)
{
EVP_FOO *foo = NULL;
for (; fns->function_id != 0; fns++) {
switch (fns->function_id) {
- case OSSL_OP_FOO_NEWCTX_FUNC:
- foo->newctx = OSSL_get_OP_foo_newctx(fns);
+ case OSSL_FUNC_FOO_NEWCTX:
+ foo->newctx = OSSL_FUNC_foo_newctx(fns);
break;
- case OSSL_OP_FOO_INIT:
- foo->init = OSSL_get_OP_foo_init(fns);
+ case OSSL_FUNC_FOO_INIT:
+ foo->init = OSSL_FUNC_foo_init(fns);
break;
- case OSSL_OP_FOO_OPERATE:
- foo->operate = OSSL_get_OP_foo_operate(fns);
+ case OSSL_FUNC_FOO_OPERATE:
+ foo->operate = OSSL_FUNC_foo_operate(fns);
break;
- case OSSL_OP_FOO_CLEANCTX_FUNC:
- foo->cleanctx = OSSL_get_OP_foo_cleanctx(fns);
+ case OSSL_FUNC_FOO_CLEANCTX:
+ foo->cleanctx = OSSL_FUNC_foo_cleanctx(fns);
break;
- case OSSL_OP_FOO_FREECTX_FUNC:
- foo->freectx = OSSL_get_OP_foo_freectx(fns);
+ case OSSL_FUNC_FOO_FREECTX:
+ foo->freectx = OSSL_FUNC_foo_freectx(fns);
break;
}
}
}
}
- static void *foo_from_dispatch(const OSSL_DISPATCH *fns,
- OSSL_PROVIDER *prov)
+ static void *foo_from_algorithm(const OSSL_DISPATCH *fns,
+ OSSL_PROVIDER *prov)
{
- return EVP_FOO_meth_from_dispatch(fns, prov);
+ return EVP_FOO_meth_from_algorithm(fns, prov);
}
static int foo_up_ref(void *vfoo)
EVP_FOO_meth_free(vfoo);
}
- EVP_FOO *EVP_FOO_fetch(OPENSSL_CTX *ctx,
+ EVP_FOO *EVP_FOO_fetch(OSSL_LIB_CTX *ctx,
const char *name,
const char *properties)
{
EVP_FOO *foo =
evp_generic_fetch(ctx, OSSL_OP_FOO, name, properties,
- foo_from_dispatch, foo_up_ref, foo_free);
+ foo_from_algorithm, foo_up_ref, foo_free);
/*
* If this method exists in legacy form, with a constant NID for the
=head1 SEE ALSO
-L<ossl_method_construct>
+L<ossl_method_construct(3)>
=head1 HISTORY
=head1 COPYRIGHT
-Copyright 2019 The OpenSSL Project Authors. All Rights Reserved.
+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
projects / thirdparty / openssl.git / blobdiff