You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
108 lines
4.0 KiB
108 lines
4.0 KiB
6 years ago
|
/* Copyright (c) 2014, Google Inc.
|
||
|
|
*
|
||
|
|
* Permission to use, copy, modify, and/or distribute this software for any
|
||
|
|
* purpose with or without fee is hereby granted, provided that the above
|
||
|
|
* copyright notice and this permission notice appear in all copies.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
|
||
|
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
|
||
|
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY
|
||
|
|
* SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
|
||
|
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION
|
||
|
|
* OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN
|
||
|
|
* CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */
|
||
|
|
|
||
|
|
#ifndef OPENSSL_HEADER_ENGINE_H
|
||
|
|
#define OPENSSL_HEADER_ENGINE_H
|
||
|
|
|
||
|
|
#include <openssl/base.h>
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
extern "C" {
|
||
|
|
#endif
|
||
|
|
|
||
|
|
|
||
|
|
/* Engines are collections of methods. Methods are tables of function pointers,
|
||
|
|
* defined for certain algorithms, that allow operations on those algorithms to
|
||
|
|
* be overridden via a callback. This can be used, for example, to implement an
|
||
|
|
* RSA* that forwards operations to a hardware module.
|
||
|
|
*
|
||
|
|
* Methods are reference counted but |ENGINE|s are not. When creating a method,
|
||
|
|
* you should zero the whole structure and fill in the function pointers that
|
||
|
|
* you wish before setting it on an |ENGINE|. Any functions pointers that
|
||
|
|
* are NULL indicate that the default behaviour should be used. */
|
||
|
|
|
||
|
|
|
||
|
|
/* Allocation and destruction. */
|
||
|
|
|
||
|
|
/* ENGINE_new returns an empty ENGINE that uses the default method for all
|
||
|
|
* algorithms. */
|
||
|
|
OPENSSL_EXPORT ENGINE *ENGINE_new(void);
|
||
|
|
|
||
|
|
/* ENGINE_free decrements the reference counts for all methods linked from
|
||
|
|
* |engine| and frees |engine| itself. */
|
||
|
|
OPENSSL_EXPORT void ENGINE_free(ENGINE *engine);
|
||
|
|
|
||
|
|
|
||
|
|
/* Method accessors.
|
||
|
|
*
|
||
|
|
* Method accessors take a method pointer and the size of the structure. The
|
||
|
|
* size allows for ABI compatibility in the case that the method structure is
|
||
|
|
* extended with extra elements at the end. Methods are always copied by the
|
||
|
|
* set functions.
|
||
|
|
*
|
||
|
|
* Set functions return one on success and zero on allocation failure. */
|
||
|
|
|
||
|
|
OPENSSL_EXPORT int ENGINE_set_DH_method(ENGINE *engine, const DH_METHOD *method,
|
||
|
|
size_t method_size);
|
||
|
|
OPENSSL_EXPORT DH_METHOD *ENGINE_get_DH_method(const ENGINE *engine);
|
||
|
|
|
||
|
|
OPENSSL_EXPORT int ENGINE_set_DSA_method(ENGINE *engine,
|
||
|
|
const DSA_METHOD *method,
|
||
|
|
size_t method_size);
|
||
|
|
OPENSSL_EXPORT DSA_METHOD *ENGINE_get_DSA_method(const ENGINE *engine);
|
||
|
|
|
||
|
|
OPENSSL_EXPORT int ENGINE_set_RSA_method(ENGINE *engine,
|
||
|
|
const RSA_METHOD *method,
|
||
|
|
size_t method_size);
|
||
|
|
OPENSSL_EXPORT RSA_METHOD *ENGINE_get_RSA_method(const ENGINE *engine);
|
||
|
|
|
||
|
|
OPENSSL_EXPORT int ENGINE_set_ECDSA_method(ENGINE *engine,
|
||
|
|
const ECDSA_METHOD *method,
|
||
|
|
size_t method_size);
|
||
|
|
OPENSSL_EXPORT ECDSA_METHOD *ENGINE_get_ECDSA_method(const ENGINE *engine);
|
||
|
|
|
||
|
|
|
||
|
|
/* Generic method functions.
|
||
|
|
*
|
||
|
|
* These functions take a void* type but actually operate on all method
|
||
|
|
* structures. */
|
||
|
|
|
||
|
|
/* METHOD_ref increments the reference count of |method|. This is a no-op for
|
||
|
|
* now because all methods are currently static. */
|
||
|
|
void METHOD_ref(void *method);
|
||
|
|
|
||
|
|
/* METHOD_unref decrements the reference count of |method| and frees it if the
|
||
|
|
* reference count drops to zero. This is a no-op for now because all methods
|
||
|
|
* are currently static. */
|
||
|
|
void METHOD_unref(void *method);
|
||
|
|
|
||
|
|
|
||
|
|
/* Private functions. */
|
||
|
|
|
||
|
|
/* openssl_method_common_st contains the common part of all method structures.
|
||
|
|
* This must be the first member of all method structures. */
|
||
|
|
struct openssl_method_common_st {
|
||
|
|
int references; /* dummy – not used. */
|
||
|
|
char is_static;
|
||
|
|
};
|
||
|
|
|
||
|
|
|
||
|
|
#if defined(__cplusplus)
|
||
|
|
} /* extern C */
|
||
|
|
#endif
|
||
|
|
|
||
|
|
#define ENGINE_R_OPERATION_NOT_SUPPORTED 100
|
||
|
|
|
||
|
|
#endif /* OPENSSL_HEADER_ENGINE_H */
|