815 lines
38 KiB
C
Executable File
815 lines
38 KiB
C
Executable File
/* $OpenBSD: engine.h,v 1.33 2019/01/19 01:07:00 tb Exp $ */
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/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
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* project 2000.
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*/
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/* ====================================================================
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* Copyright (c) 1999-2004 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*
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* This product includes cryptographic software written by Eric Young
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* (eay@cryptsoft.com). This product includes software written by Tim
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* Hudson (tjh@cryptsoft.com).
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*
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*/
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/* ====================================================================
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* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
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* ECDH support in OpenSSL originally developed by
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* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
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*/
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#ifndef HEADER_ENGINE_H
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#define HEADER_ENGINE_H
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#include <openssl/opensslconf.h>
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#ifdef OPENSSL_NO_ENGINE
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#error ENGINE is disabled.
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#endif
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#ifndef OPENSSL_NO_DEPRECATED
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#include <openssl/bn.h>
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#ifndef OPENSSL_NO_RSA
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#include <openssl/rsa.h>
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#endif
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#ifndef OPENSSL_NO_DSA
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#include <openssl/dsa.h>
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#endif
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#ifndef OPENSSL_NO_DH
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#include <openssl/dh.h>
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#endif
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#ifndef OPENSSL_NO_ECDH
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#include <openssl/ecdh.h>
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#endif
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#ifndef OPENSSL_NO_ECDSA
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#include <openssl/ecdsa.h>
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#endif
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#ifndef OPENSSL_NO_EC
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#include <openssl/ec.h>
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#endif
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#include <openssl/ui.h>
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#include <openssl/err.h>
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#endif
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#include <openssl/ossl_typ.h>
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#include <openssl/x509.h>
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* These flags are used to control combinations of algorithm (methods)
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* by bitwise "OR"ing. */
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#define ENGINE_METHOD_RSA (unsigned int)0x0001
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#define ENGINE_METHOD_DSA (unsigned int)0x0002
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#define ENGINE_METHOD_DH (unsigned int)0x0004
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#define ENGINE_METHOD_RAND (unsigned int)0x0008
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#define ENGINE_METHOD_ECDH (unsigned int)0x0010
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#define ENGINE_METHOD_ECDSA (unsigned int)0x0020
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#define ENGINE_METHOD_CIPHERS (unsigned int)0x0040
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#define ENGINE_METHOD_DIGESTS (unsigned int)0x0080
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#define ENGINE_METHOD_STORE (unsigned int)0x0100
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#define ENGINE_METHOD_PKEY_METHS (unsigned int)0x0200
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#define ENGINE_METHOD_PKEY_ASN1_METHS (unsigned int)0x0400
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#define ENGINE_METHOD_EC (unsigned int)0x0800
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/* Obvious all-or-nothing cases. */
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#define ENGINE_METHOD_ALL (unsigned int)0xFFFF
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#define ENGINE_METHOD_NONE (unsigned int)0x0000
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/* This(ese) flag(s) controls behaviour of the ENGINE_TABLE mechanism used
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* internally to control registration of ENGINE implementations, and can be set
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* by ENGINE_set_table_flags(). The "NOINIT" flag prevents attempts to
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* initialise registered ENGINEs if they are not already initialised. */
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#define ENGINE_TABLE_FLAG_NOINIT (unsigned int)0x0001
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/* ENGINE flags that can be set by ENGINE_set_flags(). */
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/* #define ENGINE_FLAGS_MALLOCED 0x0001 */ /* Not used */
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/* This flag is for ENGINEs that wish to handle the various 'CMD'-related
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* control commands on their own. Without this flag, ENGINE_ctrl() handles these
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* control commands on behalf of the ENGINE using their "cmd_defns" data. */
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#define ENGINE_FLAGS_MANUAL_CMD_CTRL (int)0x0002
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/* This flag is for ENGINEs who return new duplicate structures when found via
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* "ENGINE_by_id()". When an ENGINE must store state (eg. if ENGINE_ctrl()
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* commands are called in sequence as part of some stateful process like
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* key-generation setup and execution), it can set this flag - then each attempt
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* to obtain the ENGINE will result in it being copied into a new structure.
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* Normally, ENGINEs don't declare this flag so ENGINE_by_id() just increments
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* the existing ENGINE's structural reference count. */
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#define ENGINE_FLAGS_BY_ID_COPY (int)0x0004
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/* This flag if for an ENGINE that does not want its methods registered as
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* part of ENGINE_register_all_complete() for example if the methods are
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* not usable as default methods.
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*/
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#define ENGINE_FLAGS_NO_REGISTER_ALL (int)0x0008
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/* ENGINEs can support their own command types, and these flags are used in
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* ENGINE_CTRL_GET_CMD_FLAGS to indicate to the caller what kind of input each
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* command expects. Currently only numeric and string input is supported. If a
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* control command supports none of the _NUMERIC, _STRING, or _NO_INPUT options,
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* then it is regarded as an "internal" control command - and not for use in
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* config setting situations. As such, they're not available to the
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* ENGINE_ctrl_cmd_string() function, only raw ENGINE_ctrl() access. Changes to
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* this list of 'command types' should be reflected carefully in
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* ENGINE_cmd_is_executable() and ENGINE_ctrl_cmd_string(). */
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/* accepts a 'long' input value (3rd parameter to ENGINE_ctrl) */
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#define ENGINE_CMD_FLAG_NUMERIC (unsigned int)0x0001
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/* accepts string input (cast from 'void*' to 'const char *', 4th parameter to
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* ENGINE_ctrl) */
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#define ENGINE_CMD_FLAG_STRING (unsigned int)0x0002
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/* Indicates that the control command takes *no* input. Ie. the control command
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* is unparameterised. */
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#define ENGINE_CMD_FLAG_NO_INPUT (unsigned int)0x0004
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/* Indicates that the control command is internal. This control command won't
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* be shown in any output, and is only usable through the ENGINE_ctrl_cmd()
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* function. */
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#define ENGINE_CMD_FLAG_INTERNAL (unsigned int)0x0008
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/* NB: These 3 control commands are deprecated and should not be used. ENGINEs
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* relying on these commands should compile conditional support for
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* compatibility (eg. if these symbols are defined) but should also migrate the
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* same functionality to their own ENGINE-specific control functions that can be
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* "discovered" by calling applications. The fact these control commands
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* wouldn't be "executable" (ie. usable by text-based config) doesn't change the
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* fact that application code can find and use them without requiring per-ENGINE
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* hacking. */
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/* These flags are used to tell the ctrl function what should be done.
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* All command numbers are shared between all engines, even if some don't
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* make sense to some engines. In such a case, they do nothing but return
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* the error ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED. */
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#define ENGINE_CTRL_SET_LOGSTREAM 1
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#define ENGINE_CTRL_SET_PASSWORD_CALLBACK 2
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#define ENGINE_CTRL_HUP 3 /* Close and reinitialise any
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handles/connections etc. */
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#define ENGINE_CTRL_SET_USER_INTERFACE 4 /* Alternative to callback */
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#define ENGINE_CTRL_SET_CALLBACK_DATA 5 /* User-specific data, used
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when calling the password
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callback and the user
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interface */
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#define ENGINE_CTRL_LOAD_CONFIGURATION 6 /* Load a configuration, given
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a string that represents a
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file name or so */
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#define ENGINE_CTRL_LOAD_SECTION 7 /* Load data from a given
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section in the already loaded
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configuration */
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/* These control commands allow an application to deal with an arbitrary engine
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* in a dynamic way. Warn: Negative return values indicate errors FOR THESE
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* COMMANDS because zero is used to indicate 'end-of-list'. Other commands,
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* including ENGINE-specific command types, return zero for an error.
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*
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* An ENGINE can choose to implement these ctrl functions, and can internally
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* manage things however it chooses - it does so by setting the
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* ENGINE_FLAGS_MANUAL_CMD_CTRL flag (using ENGINE_set_flags()). Otherwise the
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* ENGINE_ctrl() code handles this on the ENGINE's behalf using the cmd_defns
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* data (set using ENGINE_set_cmd_defns()). This means an ENGINE's ctrl()
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* handler need only implement its own commands - the above "meta" commands will
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* be taken care of. */
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/* Returns non-zero if the supplied ENGINE has a ctrl() handler. If "not", then
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* all the remaining control commands will return failure, so it is worth
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* checking this first if the caller is trying to "discover" the engine's
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* capabilities and doesn't want errors generated unnecessarily. */
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#define ENGINE_CTRL_HAS_CTRL_FUNCTION 10
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/* Returns a positive command number for the first command supported by the
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* engine. Returns zero if no ctrl commands are supported. */
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#define ENGINE_CTRL_GET_FIRST_CMD_TYPE 11
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/* The 'long' argument specifies a command implemented by the engine, and the
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* return value is the next command supported, or zero if there are no more. */
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#define ENGINE_CTRL_GET_NEXT_CMD_TYPE 12
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/* The 'void*' argument is a command name (cast from 'const char *'), and the
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* return value is the command that corresponds to it. */
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#define ENGINE_CTRL_GET_CMD_FROM_NAME 13
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/* The next two allow a command to be converted into its corresponding string
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* form. In each case, the 'long' argument supplies the command. In the NAME_LEN
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* case, the return value is the length of the command name (not counting a
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* trailing EOL). In the NAME case, the 'void*' argument must be a string buffer
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* large enough, and it will be populated with the name of the command (WITH a
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* trailing EOL). */
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#define ENGINE_CTRL_GET_NAME_LEN_FROM_CMD 14
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#define ENGINE_CTRL_GET_NAME_FROM_CMD 15
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/* The next two are similar but give a "short description" of a command. */
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#define ENGINE_CTRL_GET_DESC_LEN_FROM_CMD 16
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#define ENGINE_CTRL_GET_DESC_FROM_CMD 17
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/* With this command, the return value is the OR'd combination of
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* ENGINE_CMD_FLAG_*** values that indicate what kind of input a given
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* engine-specific ctrl command expects. */
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#define ENGINE_CTRL_GET_CMD_FLAGS 18
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/* ENGINE implementations should start the numbering of their own control
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* commands from this value. (ie. ENGINE_CMD_BASE, ENGINE_CMD_BASE + 1, etc). */
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#define ENGINE_CMD_BASE 200
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/* If an ENGINE supports its own specific control commands and wishes the
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* framework to handle the above 'ENGINE_CMD_***'-manipulation commands on its
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* behalf, it should supply a null-terminated array of ENGINE_CMD_DEFN entries
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* to ENGINE_set_cmd_defns(). It should also implement a ctrl() handler that
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* supports the stated commands (ie. the "cmd_num" entries as described by the
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* array). NB: The array must be ordered in increasing order of cmd_num.
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* "null-terminated" means that the last ENGINE_CMD_DEFN element has cmd_num set
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* to zero and/or cmd_name set to NULL. */
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typedef struct ENGINE_CMD_DEFN_st {
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unsigned int cmd_num; /* The command number */
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const char *cmd_name; /* The command name itself */
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const char *cmd_desc; /* A short description of the command */
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unsigned int cmd_flags; /* The input the command expects */
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} ENGINE_CMD_DEFN;
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/* Generic function pointer */
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typedef int (*ENGINE_GEN_FUNC_PTR)(void);
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/* Generic function pointer taking no arguments */
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typedef int (*ENGINE_GEN_INT_FUNC_PTR)(ENGINE *);
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/* Specific control function pointer */
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typedef int (*ENGINE_CTRL_FUNC_PTR)(ENGINE *, int, long, void *,
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void (*f)(void));
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/* Generic load_key function pointer */
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typedef EVP_PKEY * (*ENGINE_LOAD_KEY_PTR)(ENGINE *, const char *,
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UI_METHOD *ui_method, void *callback_data);
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typedef int (*ENGINE_SSL_CLIENT_CERT_PTR)(ENGINE *, SSL *ssl,
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STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **pkey,
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STACK_OF(X509) **pother, UI_METHOD *ui_method, void *callback_data);
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/* These callback types are for an ENGINE's handler for cipher and digest logic.
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* These handlers have these prototypes;
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* int foo(ENGINE *e, const EVP_CIPHER **cipher, const int **nids, int nid);
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* int foo(ENGINE *e, const EVP_MD **digest, const int **nids, int nid);
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* Looking at how to implement these handlers in the case of cipher support, if
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* the framework wants the EVP_CIPHER for 'nid', it will call;
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* foo(e, &p_evp_cipher, NULL, nid); (return zero for failure)
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* If the framework wants a list of supported 'nid's, it will call;
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* foo(e, NULL, &p_nids, 0); (returns number of 'nids' or -1 for error)
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*/
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/* Returns to a pointer to the array of supported cipher 'nid's. If the second
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* parameter is non-NULL it is set to the size of the returned array. */
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typedef int (*ENGINE_CIPHERS_PTR)(ENGINE *, const EVP_CIPHER **,
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const int **, int);
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typedef int (*ENGINE_DIGESTS_PTR)(ENGINE *, const EVP_MD **, const int **, int);
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typedef int (*ENGINE_PKEY_METHS_PTR)(ENGINE *, EVP_PKEY_METHOD **,
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const int **, int);
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typedef int (*ENGINE_PKEY_ASN1_METHS_PTR)(ENGINE *, EVP_PKEY_ASN1_METHOD **,
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const int **, int);
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/* STRUCTURE functions ... all of these functions deal with pointers to ENGINE
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* structures where the pointers have a "structural reference". This means that
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* their reference is to allowed access to the structure but it does not imply
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* that the structure is functional. To simply increment or decrement the
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* structural reference count, use ENGINE_by_id and ENGINE_free. NB: This is not
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* required when iterating using ENGINE_get_next as it will automatically
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* decrement the structural reference count of the "current" ENGINE and
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* increment the structural reference count of the ENGINE it returns (unless it
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* is NULL). */
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/* Get the first/last "ENGINE" type available. */
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ENGINE *ENGINE_get_first(void);
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ENGINE *ENGINE_get_last(void);
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/* Iterate to the next/previous "ENGINE" type (NULL = end of the list). */
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ENGINE *ENGINE_get_next(ENGINE *e);
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ENGINE *ENGINE_get_prev(ENGINE *e);
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/* Add another "ENGINE" type into the array. */
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int ENGINE_add(ENGINE *e);
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/* Remove an existing "ENGINE" type from the array. */
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int ENGINE_remove(ENGINE *e);
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/* Retrieve an engine from the list by its unique "id" value. */
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ENGINE *ENGINE_by_id(const char *id);
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/* Add all the built-in engines. */
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void ENGINE_load_openssl(void);
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void ENGINE_load_dynamic(void);
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#ifndef OPENSSL_NO_STATIC_ENGINE
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void ENGINE_load_padlock(void);
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#endif
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void ENGINE_load_builtin_engines(void);
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/* Get and set global flags (ENGINE_TABLE_FLAG_***) for the implementation
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* "registry" handling. */
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unsigned int ENGINE_get_table_flags(void);
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void ENGINE_set_table_flags(unsigned int flags);
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/* Manage registration of ENGINEs per "table". For each type, there are 3
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* functions;
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* ENGINE_register_***(e) - registers the implementation from 'e' (if it has one)
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* ENGINE_unregister_***(e) - unregister the implementation from 'e'
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* ENGINE_register_all_***() - call ENGINE_register_***() for each 'e' in the list
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* Cleanup is automatically registered from each table when required, so
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* ENGINE_cleanup() will reverse any "register" operations. */
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int ENGINE_register_RSA(ENGINE *e);
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void ENGINE_unregister_RSA(ENGINE *e);
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void ENGINE_register_all_RSA(void);
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int ENGINE_register_DSA(ENGINE *e);
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void ENGINE_unregister_DSA(ENGINE *e);
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void ENGINE_register_all_DSA(void);
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int ENGINE_register_ECDH(ENGINE *e);
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void ENGINE_unregister_ECDH(ENGINE *e);
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void ENGINE_register_all_ECDH(void);
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int ENGINE_register_ECDSA(ENGINE *e);
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void ENGINE_unregister_ECDSA(ENGINE *e);
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void ENGINE_register_all_ECDSA(void);
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int ENGINE_register_EC(ENGINE *e);
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void ENGINE_unregister_EC(ENGINE *e);
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void ENGINE_register_all_EC(void);
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int ENGINE_register_DH(ENGINE *e);
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void ENGINE_unregister_DH(ENGINE *e);
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void ENGINE_register_all_DH(void);
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int ENGINE_register_RAND(ENGINE *e);
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void ENGINE_unregister_RAND(ENGINE *e);
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void ENGINE_register_all_RAND(void);
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int ENGINE_register_STORE(ENGINE *e);
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void ENGINE_unregister_STORE(ENGINE *e);
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void ENGINE_register_all_STORE(void);
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int ENGINE_register_ciphers(ENGINE *e);
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void ENGINE_unregister_ciphers(ENGINE *e);
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void ENGINE_register_all_ciphers(void);
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int ENGINE_register_digests(ENGINE *e);
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void ENGINE_unregister_digests(ENGINE *e);
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void ENGINE_register_all_digests(void);
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int ENGINE_register_pkey_meths(ENGINE *e);
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void ENGINE_unregister_pkey_meths(ENGINE *e);
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void ENGINE_register_all_pkey_meths(void);
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int ENGINE_register_pkey_asn1_meths(ENGINE *e);
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void ENGINE_unregister_pkey_asn1_meths(ENGINE *e);
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void ENGINE_register_all_pkey_asn1_meths(void);
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/* These functions register all support from the above categories. Note, use of
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* these functions can result in static linkage of code your application may not
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* need. If you only need a subset of functionality, consider using more
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* selective initialisation. */
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int ENGINE_register_complete(ENGINE *e);
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int ENGINE_register_all_complete(void);
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/* Send parametrised control commands to the engine. The possibilities to send
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* down an integer, a pointer to data or a function pointer are provided. Any of
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* the parameters may or may not be NULL, depending on the command number. In
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* actuality, this function only requires a structural (rather than functional)
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* reference to an engine, but many control commands may require the engine be
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* functional. The caller should be aware of trying commands that require an
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* operational ENGINE, and only use functional references in such situations. */
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int ENGINE_ctrl(ENGINE *e, int cmd, long i, void *p, void (*f)(void));
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|
|
/* This function tests if an ENGINE-specific command is usable as a "setting".
|
|
* Eg. in an application's config file that gets processed through
|
|
* ENGINE_ctrl_cmd_string(). If this returns zero, it is not available to
|
|
* ENGINE_ctrl_cmd_string(), only ENGINE_ctrl(). */
|
|
int ENGINE_cmd_is_executable(ENGINE *e, int cmd);
|
|
|
|
/* This function works like ENGINE_ctrl() with the exception of taking a
|
|
* command name instead of a command number, and can handle optional commands.
|
|
* See the comment on ENGINE_ctrl_cmd_string() for an explanation on how to
|
|
* use the cmd_name and cmd_optional. */
|
|
int ENGINE_ctrl_cmd(ENGINE *e, const char *cmd_name,
|
|
long i, void *p, void (*f)(void), int cmd_optional);
|
|
|
|
/* This function passes a command-name and argument to an ENGINE. The cmd_name
|
|
* is converted to a command number and the control command is called using
|
|
* 'arg' as an argument (unless the ENGINE doesn't support such a command, in
|
|
* which case no control command is called). The command is checked for input
|
|
* flags, and if necessary the argument will be converted to a numeric value. If
|
|
* cmd_optional is non-zero, then if the ENGINE doesn't support the given
|
|
* cmd_name the return value will be success anyway. This function is intended
|
|
* for applications to use so that users (or config files) can supply
|
|
* engine-specific config data to the ENGINE at run-time to control behaviour of
|
|
* specific engines. As such, it shouldn't be used for calling ENGINE_ctrl()
|
|
* functions that return data, deal with binary data, or that are otherwise
|
|
* supposed to be used directly through ENGINE_ctrl() in application code. Any
|
|
* "return" data from an ENGINE_ctrl() operation in this function will be lost -
|
|
* the return value is interpreted as failure if the return value is zero,
|
|
* success otherwise, and this function returns a boolean value as a result. In
|
|
* other words, vendors of 'ENGINE'-enabled devices should write ENGINE
|
|
* implementations with parameterisations that work in this scheme, so that
|
|
* compliant ENGINE-based applications can work consistently with the same
|
|
* configuration for the same ENGINE-enabled devices, across applications. */
|
|
int ENGINE_ctrl_cmd_string(ENGINE *e, const char *cmd_name, const char *arg,
|
|
int cmd_optional);
|
|
|
|
/* These functions are useful for manufacturing new ENGINE structures. They
|
|
* don't address reference counting at all - one uses them to populate an ENGINE
|
|
* structure with personalised implementations of things prior to using it
|
|
* directly or adding it to the builtin ENGINE list in OpenSSL. These are also
|
|
* here so that the ENGINE structure doesn't have to be exposed and break binary
|
|
* compatibility! */
|
|
ENGINE *ENGINE_new(void);
|
|
int ENGINE_free(ENGINE *e);
|
|
int ENGINE_up_ref(ENGINE *e);
|
|
int ENGINE_set_id(ENGINE *e, const char *id);
|
|
int ENGINE_set_name(ENGINE *e, const char *name);
|
|
int ENGINE_set_RSA(ENGINE *e, const RSA_METHOD *rsa_meth);
|
|
int ENGINE_set_DSA(ENGINE *e, const DSA_METHOD *dsa_meth);
|
|
int ENGINE_set_ECDH(ENGINE *e, const ECDH_METHOD *ecdh_meth);
|
|
int ENGINE_set_ECDSA(ENGINE *e, const ECDSA_METHOD *ecdsa_meth);
|
|
int ENGINE_set_EC(ENGINE *e, const EC_KEY_METHOD *ec_meth);
|
|
int ENGINE_set_DH(ENGINE *e, const DH_METHOD *dh_meth);
|
|
int ENGINE_set_RAND(ENGINE *e, const RAND_METHOD *rand_meth);
|
|
int ENGINE_set_STORE(ENGINE *e, const STORE_METHOD *store_meth);
|
|
int ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f);
|
|
int ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f);
|
|
int ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f);
|
|
int ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f);
|
|
int ENGINE_set_load_privkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpriv_f);
|
|
int ENGINE_set_load_pubkey_function(ENGINE *e, ENGINE_LOAD_KEY_PTR loadpub_f);
|
|
int ENGINE_set_load_ssl_client_cert_function(ENGINE *e,
|
|
ENGINE_SSL_CLIENT_CERT_PTR loadssl_f);
|
|
int ENGINE_set_ciphers(ENGINE *e, ENGINE_CIPHERS_PTR f);
|
|
int ENGINE_set_digests(ENGINE *e, ENGINE_DIGESTS_PTR f);
|
|
int ENGINE_set_pkey_meths(ENGINE *e, ENGINE_PKEY_METHS_PTR f);
|
|
int ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f);
|
|
int ENGINE_set_flags(ENGINE *e, int flags);
|
|
int ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns);
|
|
/* These functions allow control over any per-structure ENGINE data. */
|
|
int ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
|
|
CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func);
|
|
int ENGINE_set_ex_data(ENGINE *e, int idx, void *arg);
|
|
void *ENGINE_get_ex_data(const ENGINE *e, int idx);
|
|
|
|
/* This function cleans up anything that needs it. Eg. the ENGINE_add() function
|
|
* automatically ensures the list cleanup function is registered to be called
|
|
* from ENGINE_cleanup(). Similarly, all ENGINE_register_*** functions ensure
|
|
* ENGINE_cleanup() will clean up after them. */
|
|
void ENGINE_cleanup(void);
|
|
|
|
/* These return values from within the ENGINE structure. These can be useful
|
|
* with functional references as well as structural references - it depends
|
|
* which you obtained. Using the result for functional purposes if you only
|
|
* obtained a structural reference may be problematic! */
|
|
const char *ENGINE_get_id(const ENGINE *e);
|
|
const char *ENGINE_get_name(const ENGINE *e);
|
|
const RSA_METHOD *ENGINE_get_RSA(const ENGINE *e);
|
|
const DSA_METHOD *ENGINE_get_DSA(const ENGINE *e);
|
|
const ECDH_METHOD *ENGINE_get_ECDH(const ENGINE *e);
|
|
const ECDSA_METHOD *ENGINE_get_ECDSA(const ENGINE *e);
|
|
const EC_KEY_METHOD *ENGINE_get_EC(const ENGINE *e);
|
|
const DH_METHOD *ENGINE_get_DH(const ENGINE *e);
|
|
const RAND_METHOD *ENGINE_get_RAND(const ENGINE *e);
|
|
const STORE_METHOD *ENGINE_get_STORE(const ENGINE *e);
|
|
ENGINE_GEN_INT_FUNC_PTR ENGINE_get_destroy_function(const ENGINE *e);
|
|
ENGINE_GEN_INT_FUNC_PTR ENGINE_get_init_function(const ENGINE *e);
|
|
ENGINE_GEN_INT_FUNC_PTR ENGINE_get_finish_function(const ENGINE *e);
|
|
ENGINE_CTRL_FUNC_PTR ENGINE_get_ctrl_function(const ENGINE *e);
|
|
ENGINE_LOAD_KEY_PTR ENGINE_get_load_privkey_function(const ENGINE *e);
|
|
ENGINE_LOAD_KEY_PTR ENGINE_get_load_pubkey_function(const ENGINE *e);
|
|
ENGINE_SSL_CLIENT_CERT_PTR ENGINE_get_ssl_client_cert_function(const ENGINE *e);
|
|
ENGINE_CIPHERS_PTR ENGINE_get_ciphers(const ENGINE *e);
|
|
ENGINE_DIGESTS_PTR ENGINE_get_digests(const ENGINE *e);
|
|
ENGINE_PKEY_METHS_PTR ENGINE_get_pkey_meths(const ENGINE *e);
|
|
ENGINE_PKEY_ASN1_METHS_PTR ENGINE_get_pkey_asn1_meths(const ENGINE *e);
|
|
const EVP_CIPHER *ENGINE_get_cipher(ENGINE *e, int nid);
|
|
const EVP_MD *ENGINE_get_digest(ENGINE *e, int nid);
|
|
const EVP_PKEY_METHOD *ENGINE_get_pkey_meth(ENGINE *e, int nid);
|
|
const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid);
|
|
const EVP_PKEY_ASN1_METHOD *ENGINE_get_pkey_asn1_meth_str(ENGINE *e,
|
|
const char *str, int len);
|
|
const EVP_PKEY_ASN1_METHOD *ENGINE_pkey_asn1_find_str(ENGINE **pe,
|
|
const char *str, int len);
|
|
const ENGINE_CMD_DEFN *ENGINE_get_cmd_defns(const ENGINE *e);
|
|
int ENGINE_get_flags(const ENGINE *e);
|
|
|
|
/* FUNCTIONAL functions. These functions deal with ENGINE structures
|
|
* that have (or will) be initialised for use. Broadly speaking, the
|
|
* structural functions are useful for iterating the list of available
|
|
* engine types, creating new engine types, and other "list" operations.
|
|
* These functions actually deal with ENGINEs that are to be used. As
|
|
* such these functions can fail (if applicable) when particular
|
|
* engines are unavailable - eg. if a hardware accelerator is not
|
|
* attached or not functioning correctly. Each ENGINE has 2 reference
|
|
* counts; structural and functional. Every time a functional reference
|
|
* is obtained or released, a corresponding structural reference is
|
|
* automatically obtained or released too. */
|
|
|
|
/* Initialise a engine type for use (or up its reference count if it's
|
|
* already in use). This will fail if the engine is not currently
|
|
* operational and cannot initialise. */
|
|
int ENGINE_init(ENGINE *e);
|
|
/* Free a functional reference to a engine type. This does not require
|
|
* a corresponding call to ENGINE_free as it also releases a structural
|
|
* reference. */
|
|
int ENGINE_finish(ENGINE *e);
|
|
|
|
/* The following functions handle keys that are stored in some secondary
|
|
* location, handled by the engine. The storage may be on a card or
|
|
* whatever. */
|
|
EVP_PKEY *ENGINE_load_private_key(ENGINE *e, const char *key_id,
|
|
UI_METHOD *ui_method, void *callback_data);
|
|
EVP_PKEY *ENGINE_load_public_key(ENGINE *e, const char *key_id,
|
|
UI_METHOD *ui_method, void *callback_data);
|
|
int ENGINE_load_ssl_client_cert(ENGINE *e, SSL *s,
|
|
STACK_OF(X509_NAME) *ca_dn, X509 **pcert, EVP_PKEY **ppkey,
|
|
STACK_OF(X509) **pother,
|
|
UI_METHOD *ui_method, void *callback_data);
|
|
|
|
/* This returns a pointer for the current ENGINE structure that
|
|
* is (by default) performing any RSA operations. The value returned
|
|
* is an incremented reference, so it should be free'd (ENGINE_finish)
|
|
* before it is discarded. */
|
|
ENGINE *ENGINE_get_default_RSA(void);
|
|
/* Same for the other "methods" */
|
|
ENGINE *ENGINE_get_default_DSA(void);
|
|
ENGINE *ENGINE_get_default_ECDH(void);
|
|
ENGINE *ENGINE_get_default_ECDSA(void);
|
|
ENGINE *ENGINE_get_default_EC(void);
|
|
ENGINE *ENGINE_get_default_DH(void);
|
|
ENGINE *ENGINE_get_default_RAND(void);
|
|
/* These functions can be used to get a functional reference to perform
|
|
* ciphering or digesting corresponding to "nid". */
|
|
ENGINE *ENGINE_get_cipher_engine(int nid);
|
|
ENGINE *ENGINE_get_digest_engine(int nid);
|
|
ENGINE *ENGINE_get_pkey_meth_engine(int nid);
|
|
ENGINE *ENGINE_get_pkey_asn1_meth_engine(int nid);
|
|
|
|
/* This sets a new default ENGINE structure for performing RSA
|
|
* operations. If the result is non-zero (success) then the ENGINE
|
|
* structure will have had its reference count up'd so the caller
|
|
* should still free their own reference 'e'. */
|
|
int ENGINE_set_default_RSA(ENGINE *e);
|
|
int ENGINE_set_default_string(ENGINE *e, const char *def_list);
|
|
/* Same for the other "methods" */
|
|
int ENGINE_set_default_DSA(ENGINE *e);
|
|
int ENGINE_set_default_ECDH(ENGINE *e);
|
|
int ENGINE_set_default_ECDSA(ENGINE *e);
|
|
int ENGINE_set_default_EC(ENGINE *e);
|
|
int ENGINE_set_default_DH(ENGINE *e);
|
|
int ENGINE_set_default_RAND(ENGINE *e);
|
|
int ENGINE_set_default_ciphers(ENGINE *e);
|
|
int ENGINE_set_default_digests(ENGINE *e);
|
|
int ENGINE_set_default_pkey_meths(ENGINE *e);
|
|
int ENGINE_set_default_pkey_asn1_meths(ENGINE *e);
|
|
|
|
/* The combination "set" - the flags are bitwise "OR"d from the
|
|
* ENGINE_METHOD_*** defines above. As with the "ENGINE_register_complete()"
|
|
* function, this function can result in unnecessary static linkage. If your
|
|
* application requires only specific functionality, consider using more
|
|
* selective functions. */
|
|
int ENGINE_set_default(ENGINE *e, unsigned int flags);
|
|
|
|
void ENGINE_add_conf_module(void);
|
|
|
|
/* Deprecated functions ... */
|
|
/* int ENGINE_clear_defaults(void); */
|
|
|
|
/**************************/
|
|
/* DYNAMIC ENGINE SUPPORT */
|
|
/**************************/
|
|
|
|
/* Binary/behaviour compatibility levels */
|
|
#define OSSL_DYNAMIC_VERSION (unsigned long)0x00020000
|
|
/* Binary versions older than this are too old for us (whether we're a loader or
|
|
* a loadee) */
|
|
#define OSSL_DYNAMIC_OLDEST (unsigned long)0x00020000
|
|
|
|
/* When compiling an ENGINE entirely as an external shared library, loadable by
|
|
* the "dynamic" ENGINE, these types are needed. The 'dynamic_fns' structure
|
|
* type provides the calling application's (or library's) error functionality
|
|
* and memory management function pointers to the loaded library. These should
|
|
* be used/set in the loaded library code so that the loading application's
|
|
* 'state' will be used/changed in all operations. The 'static_state' pointer
|
|
* allows the loaded library to know if it shares the same static data as the
|
|
* calling application (or library), and thus whether these callbacks need to be
|
|
* set or not. */
|
|
typedef void *(*dyn_MEM_malloc_cb)(size_t);
|
|
typedef void *(*dyn_MEM_realloc_cb)(void *, size_t);
|
|
typedef void (*dyn_MEM_free_cb)(void *);
|
|
typedef struct st_dynamic_MEM_fns {
|
|
dyn_MEM_malloc_cb malloc_cb;
|
|
dyn_MEM_realloc_cb realloc_cb;
|
|
dyn_MEM_free_cb free_cb;
|
|
} dynamic_MEM_fns;
|
|
/* FIXME: Perhaps the memory and locking code (crypto.h) should declare and use
|
|
* these types so we (and any other dependant code) can simplify a bit?? */
|
|
typedef void (*dyn_lock_locking_cb)(int, int, const char *, int);
|
|
typedef int (*dyn_lock_add_lock_cb)(int*, int, int, const char *, int);
|
|
typedef struct CRYPTO_dynlock_value *(*dyn_dynlock_create_cb)(
|
|
const char *, int);
|
|
typedef void (*dyn_dynlock_lock_cb)(int, struct CRYPTO_dynlock_value *,
|
|
const char *, int);
|
|
typedef void (*dyn_dynlock_destroy_cb)(struct CRYPTO_dynlock_value *,
|
|
const char *, int);
|
|
typedef struct st_dynamic_LOCK_fns {
|
|
dyn_lock_locking_cb lock_locking_cb;
|
|
dyn_lock_add_lock_cb lock_add_lock_cb;
|
|
dyn_dynlock_create_cb dynlock_create_cb;
|
|
dyn_dynlock_lock_cb dynlock_lock_cb;
|
|
dyn_dynlock_destroy_cb dynlock_destroy_cb;
|
|
} dynamic_LOCK_fns;
|
|
/* The top-level structure */
|
|
typedef struct st_dynamic_fns {
|
|
void *static_state;
|
|
const ERR_FNS *err_fns;
|
|
const CRYPTO_EX_DATA_IMPL *ex_data_fns;
|
|
dynamic_MEM_fns mem_fns;
|
|
dynamic_LOCK_fns lock_fns;
|
|
} dynamic_fns;
|
|
|
|
/* The version checking function should be of this prototype. NB: The
|
|
* ossl_version value passed in is the OSSL_DYNAMIC_VERSION of the loading code.
|
|
* If this function returns zero, it indicates a (potential) version
|
|
* incompatibility and the loaded library doesn't believe it can proceed.
|
|
* Otherwise, the returned value is the (latest) version supported by the
|
|
* loading library. The loader may still decide that the loaded code's version
|
|
* is unsatisfactory and could veto the load. The function is expected to
|
|
* be implemented with the symbol name "v_check", and a default implementation
|
|
* can be fully instantiated with IMPLEMENT_DYNAMIC_CHECK_FN(). */
|
|
typedef unsigned long (*dynamic_v_check_fn)(unsigned long ossl_version);
|
|
#define IMPLEMENT_DYNAMIC_CHECK_FN() \
|
|
extern unsigned long v_check(unsigned long v); \
|
|
extern unsigned long v_check(unsigned long v) { \
|
|
if(v >= OSSL_DYNAMIC_OLDEST) return OSSL_DYNAMIC_VERSION; \
|
|
return 0; }
|
|
|
|
/* This function is passed the ENGINE structure to initialise with its own
|
|
* function and command settings. It should not adjust the structural or
|
|
* functional reference counts. If this function returns zero, (a) the load will
|
|
* be aborted, (b) the previous ENGINE state will be memcpy'd back onto the
|
|
* structure, and (c) the shared library will be unloaded. So implementations
|
|
* should do their own internal cleanup in failure circumstances otherwise they
|
|
* could leak. The 'id' parameter, if non-NULL, represents the ENGINE id that
|
|
* the loader is looking for. If this is NULL, the shared library can choose to
|
|
* return failure or to initialise a 'default' ENGINE. If non-NULL, the shared
|
|
* library must initialise only an ENGINE matching the passed 'id'. The function
|
|
* is expected to be implemented with the symbol name "bind_engine". A standard
|
|
* implementation can be instantiated with IMPLEMENT_DYNAMIC_BIND_FN(fn) where
|
|
* the parameter 'fn' is a callback function that populates the ENGINE structure
|
|
* and returns an int value (zero for failure). 'fn' should have prototype;
|
|
* [static] int fn(ENGINE *e, const char *id); */
|
|
typedef int (*dynamic_bind_engine)(ENGINE *e, const char *id,
|
|
const dynamic_fns *fns);
|
|
#define IMPLEMENT_DYNAMIC_BIND_FN(fn) \
|
|
extern \
|
|
int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns); \
|
|
extern \
|
|
int bind_engine(ENGINE *e, const char *id, const dynamic_fns *fns) { \
|
|
if(ENGINE_get_static_state() == fns->static_state) goto skip_cbs; \
|
|
if(!CRYPTO_set_mem_functions(fns->mem_fns.malloc_cb, \
|
|
fns->mem_fns.realloc_cb, fns->mem_fns.free_cb)) \
|
|
return 0; \
|
|
if(!CRYPTO_set_ex_data_implementation(fns->ex_data_fns)) \
|
|
return 0; \
|
|
if(!ERR_set_implementation(fns->err_fns)) return 0; \
|
|
skip_cbs: \
|
|
if(!fn(e,id)) return 0; \
|
|
return 1; }
|
|
|
|
/* If the loading application (or library) and the loaded ENGINE library share
|
|
* the same static data (eg. they're both dynamically linked to the same
|
|
* libcrypto.so) we need a way to avoid trying to set system callbacks - this
|
|
* would fail, and for the same reason that it's unnecessary to try. If the
|
|
* loaded ENGINE has (or gets from through the loader) its own copy of the
|
|
* libcrypto static data, we will need to set the callbacks. The easiest way to
|
|
* detect this is to have a function that returns a pointer to some static data
|
|
* and let the loading application and loaded ENGINE compare their respective
|
|
* values. */
|
|
void *ENGINE_get_static_state(void);
|
|
|
|
/* BEGIN ERROR CODES */
|
|
/* The following lines are auto generated by the script mkerr.pl. Any changes
|
|
* made after this point may be overwritten when the script is next run.
|
|
*/
|
|
void ERR_load_ENGINE_strings(void);
|
|
|
|
/* Error codes for the ENGINE functions. */
|
|
|
|
/* Function codes. */
|
|
#define ENGINE_F_DYNAMIC_CTRL 180
|
|
#define ENGINE_F_DYNAMIC_GET_DATA_CTX 181
|
|
#define ENGINE_F_DYNAMIC_LOAD 182
|
|
#define ENGINE_F_DYNAMIC_SET_DATA_CTX 183
|
|
#define ENGINE_F_ENGINE_ADD 105
|
|
#define ENGINE_F_ENGINE_BY_ID 106
|
|
#define ENGINE_F_ENGINE_CMD_IS_EXECUTABLE 170
|
|
#define ENGINE_F_ENGINE_CTRL 142
|
|
#define ENGINE_F_ENGINE_CTRL_CMD 178
|
|
#define ENGINE_F_ENGINE_CTRL_CMD_STRING 171
|
|
#define ENGINE_F_ENGINE_FINISH 107
|
|
#define ENGINE_F_ENGINE_FREE_UTIL 108
|
|
#define ENGINE_F_ENGINE_GET_CIPHER 185
|
|
#define ENGINE_F_ENGINE_GET_DEFAULT_TYPE 177
|
|
#define ENGINE_F_ENGINE_GET_DIGEST 186
|
|
#define ENGINE_F_ENGINE_GET_NEXT 115
|
|
#define ENGINE_F_ENGINE_GET_PKEY_ASN1_METH 193
|
|
#define ENGINE_F_ENGINE_GET_PKEY_METH 192
|
|
#define ENGINE_F_ENGINE_GET_PREV 116
|
|
#define ENGINE_F_ENGINE_INIT 119
|
|
#define ENGINE_F_ENGINE_LIST_ADD 120
|
|
#define ENGINE_F_ENGINE_LIST_REMOVE 121
|
|
#define ENGINE_F_ENGINE_LOAD_PRIVATE_KEY 150
|
|
#define ENGINE_F_ENGINE_LOAD_PUBLIC_KEY 151
|
|
#define ENGINE_F_ENGINE_LOAD_SSL_CLIENT_CERT 194
|
|
#define ENGINE_F_ENGINE_NEW 122
|
|
#define ENGINE_F_ENGINE_REMOVE 123
|
|
#define ENGINE_F_ENGINE_SET_DEFAULT_STRING 189
|
|
#define ENGINE_F_ENGINE_SET_DEFAULT_TYPE 126
|
|
#define ENGINE_F_ENGINE_SET_ID 129
|
|
#define ENGINE_F_ENGINE_SET_NAME 130
|
|
#define ENGINE_F_ENGINE_TABLE_REGISTER 184
|
|
#define ENGINE_F_ENGINE_UNLOAD_KEY 152
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#define ENGINE_F_ENGINE_UNLOCKED_FINISH 191
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#define ENGINE_F_ENGINE_UP_REF 190
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#define ENGINE_F_INT_CTRL_HELPER 172
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#define ENGINE_F_INT_ENGINE_CONFIGURE 188
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#define ENGINE_F_INT_ENGINE_MODULE_INIT 187
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#define ENGINE_F_LOG_MESSAGE 141
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/* Reason codes. */
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#define ENGINE_R_ALREADY_LOADED 100
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#define ENGINE_R_ARGUMENT_IS_NOT_A_NUMBER 133
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#define ENGINE_R_CMD_NOT_EXECUTABLE 134
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#define ENGINE_R_COMMAND_TAKES_INPUT 135
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#define ENGINE_R_COMMAND_TAKES_NO_INPUT 136
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#define ENGINE_R_CONFLICTING_ENGINE_ID 103
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#define ENGINE_R_CTRL_COMMAND_NOT_IMPLEMENTED 119
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#define ENGINE_R_DH_NOT_IMPLEMENTED 139
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#define ENGINE_R_DSA_NOT_IMPLEMENTED 140
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#define ENGINE_R_DSO_FAILURE 104
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#define ENGINE_R_DSO_NOT_FOUND 132
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#define ENGINE_R_ENGINES_SECTION_ERROR 148
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#define ENGINE_R_ENGINE_CONFIGURATION_ERROR 102
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#define ENGINE_R_ENGINE_IS_NOT_IN_LIST 105
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#define ENGINE_R_ENGINE_SECTION_ERROR 149
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#define ENGINE_R_FAILED_LOADING_PRIVATE_KEY 128
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#define ENGINE_R_FAILED_LOADING_PUBLIC_KEY 129
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#define ENGINE_R_FINISH_FAILED 106
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#define ENGINE_R_GET_HANDLE_FAILED 107
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#define ENGINE_R_ID_OR_NAME_MISSING 108
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#define ENGINE_R_INIT_FAILED 109
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#define ENGINE_R_INTERNAL_LIST_ERROR 110
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#define ENGINE_R_INVALID_ARGUMENT 143
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#define ENGINE_R_INVALID_CMD_NAME 137
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#define ENGINE_R_INVALID_CMD_NUMBER 138
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#define ENGINE_R_INVALID_INIT_VALUE 151
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#define ENGINE_R_INVALID_STRING 150
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#define ENGINE_R_NOT_INITIALISED 117
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#define ENGINE_R_NOT_LOADED 112
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#define ENGINE_R_NO_CONTROL_FUNCTION 120
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#define ENGINE_R_NO_INDEX 144
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#define ENGINE_R_NO_LOAD_FUNCTION 125
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#define ENGINE_R_NO_REFERENCE 130
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#define ENGINE_R_NO_SUCH_ENGINE 116
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#define ENGINE_R_NO_UNLOAD_FUNCTION 126
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#define ENGINE_R_PROVIDE_PARAMETERS 113
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#define ENGINE_R_RSA_NOT_IMPLEMENTED 141
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#define ENGINE_R_UNIMPLEMENTED_CIPHER 146
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#define ENGINE_R_UNIMPLEMENTED_DIGEST 147
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#define ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD 101
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#define ENGINE_R_VERSION_INCOMPATIBILITY 145
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#ifdef __cplusplus
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}
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#endif
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#endif
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