1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
|
/* crypto/engine/eng_int.h */
/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
* project 2000.
*/
/* ====================================================================
* Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* 1. Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
*
* 2. Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* 3. All advertising materials mentioning features or use of this
* software must display the following acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
*
* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
* endorse or promote products derived from this software without
* prior written permission. For written permission, please contact
* licensing@OpenSSL.org.
*
* 5. Products derived from this software may not be called "OpenSSL"
* nor may "OpenSSL" appear in their names without prior written
* permission of the OpenSSL Project.
*
* 6. Redistributions of any form whatsoever must retain the following
* acknowledgment:
* "This product includes software developed by the OpenSSL Project
* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
*
* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
* OF THE POSSIBILITY OF SUCH DAMAGE.
* ====================================================================
*
* This product includes cryptographic software written by Eric Young
* (eay@cryptsoft.com). This product includes software written by Tim
* Hudson (tjh@cryptsoft.com).
*
*/
/* ====================================================================
* Copyright 2002 Sun Microsystems, Inc. ALL RIGHTS RESERVED.
* ECDH support in OpenSSL originally developed by
* SUN MICROSYSTEMS, INC., and contributed to the OpenSSL project.
*/
#ifndef HEADER_ENGINE_INT_H
#define HEADER_ENGINE_INT_H
#include "cryptlib.h"
/* Take public definitions from engine.h */
#include <openssl/engine.h>
#ifdef __cplusplus
extern "C" {
#endif
/* If we compile with this symbol defined, then both reference counts in the
* ENGINE structure will be monitored with a line of output on stderr for each
* change. This prints the engine's pointer address (truncated to unsigned int),
* "struct" or "funct" to indicate the reference type, the before and after
* reference count, and the file:line-number pair. The "engine_ref_debug"
* statements must come *after* the change. */
#ifdef ENGINE_REF_COUNT_DEBUG
#define engine_ref_debug(e, isfunct, diff) \
fprintf(stderr, "engine: %08x %s from %d to %d (%s:%d)\n", \
(unsigned int)(e), (isfunct ? "funct" : "struct"), \
((isfunct) ? ((e)->funct_ref - (diff)) : ((e)->struct_ref - (diff))), \
((isfunct) ? (e)->funct_ref : (e)->struct_ref), \
(__FILE__), (__LINE__));
#else
#define engine_ref_debug(e, isfunct, diff)
#endif
/* Any code that will need cleanup operations should use these functions to
* register callbacks. ENGINE_cleanup() will call all registered callbacks in
* order. NB: both the "add" functions assume CRYPTO_LOCK_ENGINE to already be
* held (in "write" mode). */
typedef void (ENGINE_CLEANUP_CB)(void);
typedef struct st_engine_cleanup_item
{
ENGINE_CLEANUP_CB *cb;
} ENGINE_CLEANUP_ITEM;
DECLARE_STACK_OF(ENGINE_CLEANUP_ITEM)
void engine_cleanup_add_first(ENGINE_CLEANUP_CB *cb);
void engine_cleanup_add_last(ENGINE_CLEANUP_CB *cb);
/* We need stacks of ENGINEs for use in eng_table.c */
DECLARE_STACK_OF(ENGINE)
/* If this symbol is defined then engine_table_select(), the function that is
* used by RSA, DSA (etc) code to select registered ENGINEs, cache defaults and
* functional references (etc), will display debugging summaries to stderr. */
/* #define ENGINE_TABLE_DEBUG */
/* This represents an implementation table. Dependent code should instantiate it
* as a (ENGINE_TABLE *) pointer value set initially to NULL. */
typedef struct st_engine_table ENGINE_TABLE;
int engine_table_register(ENGINE_TABLE **table, ENGINE_CLEANUP_CB *cleanup,
ENGINE *e, const int *nids, int num_nids, int setdefault);
void engine_table_unregister(ENGINE_TABLE **table, ENGINE *e);
void engine_table_cleanup(ENGINE_TABLE **table);
#ifndef ENGINE_TABLE_DEBUG
ENGINE *engine_table_select(ENGINE_TABLE **table, int nid);
#else
ENGINE *engine_table_select_tmp(ENGINE_TABLE **table, int nid, const char *f, int l);
#define engine_table_select(t,n) engine_table_select_tmp(t,n,__FILE__,__LINE__)
#endif
/* Internal versions of API functions that have control over locking. These are
* used between C files when functionality needs to be shared but the caller may
* already be controlling of the CRYPTO_LOCK_ENGINE lock. */
int engine_unlocked_init(ENGINE *e);
int engine_unlocked_finish(ENGINE *e, int unlock_for_handlers);
int engine_free_util(ENGINE *e, int locked);
/* This function will reset all "set"able values in an ENGINE to NULL. This
* won't touch reference counts or ex_data, but is equivalent to calling all the
* ENGINE_set_***() functions with a NULL value. */
void engine_set_all_null(ENGINE *e);
/* NB: Bitwise OR-able values for the "flags" variable in ENGINE are now exposed
* in engine.h. */
/* This is a structure for storing implementations of various crypto
* algorithms and functions. */
struct engine_st
{
const char *id;
const char *name;
const RSA_METHOD *rsa_meth;
const DSA_METHOD *dsa_meth;
const DH_METHOD *dh_meth;
const ECDH_METHOD *ecdh_meth;
const ECDSA_METHOD *ecdsa_meth;
const RAND_METHOD *rand_meth;
const STORE_METHOD *store_meth;
/* Cipher handling is via this callback */
ENGINE_CIPHERS_PTR ciphers;
/* Digest handling is via this callback */
ENGINE_DIGESTS_PTR digests;
ENGINE_GEN_INT_FUNC_PTR destroy;
ENGINE_GEN_INT_FUNC_PTR init;
ENGINE_GEN_INT_FUNC_PTR finish;
ENGINE_CTRL_FUNC_PTR ctrl;
ENGINE_LOAD_KEY_PTR load_privkey;
ENGINE_LOAD_KEY_PTR load_pubkey;
ENGINE_SSL_CLIENT_CERT_PTR load_ssl_client_cert;
const ENGINE_CMD_DEFN *cmd_defns;
int flags;
/* reference count on the structure itself */
int struct_ref;
/* reference count on usability of the engine type. NB: This
* controls the loading and initialisation of any functionlity
* required by this engine, whereas the previous count is
* simply to cope with (de)allocation of this structure. Hence,
* running_ref <= struct_ref at all times. */
int funct_ref;
/* A place to store per-ENGINE data */
CRYPTO_EX_DATA ex_data;
/* Used to maintain the linked-list of engines. */
struct engine_st *prev;
struct engine_st *next;
};
#ifdef __cplusplus
}
#endif
#endif /* HEADER_ENGINE_INT_H */
|
