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-rw-r--r--src/lib/libcrypto/engine/eng_lib.c367
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diff --git a/src/lib/libcrypto/engine/eng_lib.c b/src/lib/libcrypto/engine/eng_lib.c
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index f5f54fc657..0000000000
--- a/src/lib/libcrypto/engine/eng_lib.c
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@@ -1,367 +0,0 @@
1/* $OpenBSD: eng_lib.c,v 1.11 2015/02/11 03:19:37 doug Exp $ */
2/* Written by Geoff Thorpe (geoff@geoffthorpe.net) for the OpenSSL
3 * project 2000.
4 */
5/* ====================================================================
6 * Copyright (c) 1999-2001 The OpenSSL Project. All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 *
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 *
15 * 2. Redistributions in binary form must reproduce the above copyright
16 * notice, this list of conditions and the following disclaimer in
17 * the documentation and/or other materials provided with the
18 * distribution.
19 *
20 * 3. All advertising materials mentioning features or use of this
21 * software must display the following acknowledgment:
22 * "This product includes software developed by the OpenSSL Project
23 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
24 *
25 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
26 * endorse or promote products derived from this software without
27 * prior written permission. For written permission, please contact
28 * licensing@OpenSSL.org.
29 *
30 * 5. Products derived from this software may not be called "OpenSSL"
31 * nor may "OpenSSL" appear in their names without prior written
32 * permission of the OpenSSL Project.
33 *
34 * 6. Redistributions of any form whatsoever must retain the following
35 * acknowledgment:
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
38 *
39 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
40 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
41 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
42 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
43 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
44 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
45 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
46 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
47 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
48 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
49 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
50 * OF THE POSSIBILITY OF SUCH DAMAGE.
51 * ====================================================================
52 *
53 * This product includes cryptographic software written by Eric Young
54 * (eay@cryptsoft.com). This product includes software written by Tim
55 * Hudson (tjh@cryptsoft.com).
56 *
57 */
58
59#include <string.h>
60
61#include <openssl/err.h>
62#include <openssl/rand.h>
63
64#include "eng_int.h"
65
66/* The "new"/"free" stuff first */
67
68ENGINE *
69ENGINE_new(void)
70{
71 ENGINE *ret;
72
73 ret = malloc(sizeof(ENGINE));
74 if (ret == NULL) {
75 ENGINEerr(ENGINE_F_ENGINE_NEW, ERR_R_MALLOC_FAILURE);
76 return NULL;
77 }
78 memset(ret, 0, sizeof(ENGINE));
79 ret->struct_ref = 1;
80 engine_ref_debug(ret, 0, 1)
81 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ENGINE, ret, &ret->ex_data);
82 return ret;
83}
84
85/* Placed here (close proximity to ENGINE_new) so that modifications to the
86 * elements of the ENGINE structure are more likely to be caught and changed
87 * here. */
88void
89engine_set_all_null(ENGINE *e)
90{
91 e->id = NULL;
92 e->name = NULL;
93 e->rsa_meth = NULL;
94 e->dsa_meth = NULL;
95 e->dh_meth = NULL;
96 e->rand_meth = NULL;
97 e->store_meth = NULL;
98 e->ciphers = NULL;
99 e->digests = NULL;
100 e->destroy = NULL;
101 e->init = NULL;
102 e->finish = NULL;
103 e->ctrl = NULL;
104 e->load_privkey = NULL;
105 e->load_pubkey = NULL;
106 e->cmd_defns = NULL;
107 e->flags = 0;
108}
109
110int
111engine_free_util(ENGINE *e, int locked)
112{
113 int i;
114
115 if (e == NULL) {
116 ENGINEerr(ENGINE_F_ENGINE_FREE_UTIL,
117 ERR_R_PASSED_NULL_PARAMETER);
118 return 0;
119 }
120 if (locked)
121 i = CRYPTO_add(&e->struct_ref, -1, CRYPTO_LOCK_ENGINE);
122 else
123 i = --e->struct_ref;
124 engine_ref_debug(e, 0, -1)
125 if (i > 0)
126 return 1;
127
128 /* Free up any dynamically allocated public key methods */
129 engine_pkey_meths_free(e);
130 engine_pkey_asn1_meths_free(e);
131 /* Give the ENGINE a chance to do any structural cleanup corresponding
132 * to allocation it did in its constructor (eg. unload error strings) */
133 if (e->destroy)
134 e->destroy(e);
135 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ENGINE, e, &e->ex_data);
136 free(e);
137 return 1;
138}
139
140int
141ENGINE_free(ENGINE *e)
142{
143 return engine_free_util(e, 1);
144}
145
146/* Cleanup stuff */
147
148/* ENGINE_cleanup() is coded such that anything that does work that will need
149 * cleanup can register a "cleanup" callback here. That way we don't get linker
150 * bloat by referring to all *possible* cleanups, but any linker bloat into code
151 * "X" will cause X's cleanup function to end up here. */
152static STACK_OF(ENGINE_CLEANUP_ITEM) *cleanup_stack = NULL;
153static int
154int_cleanup_check(int create)
155{
156 if (cleanup_stack)
157 return 1;
158 if (!create)
159 return 0;
160 cleanup_stack = sk_ENGINE_CLEANUP_ITEM_new_null();
161 return (cleanup_stack ? 1 : 0);
162}
163
164static ENGINE_CLEANUP_ITEM *
165int_cleanup_item(ENGINE_CLEANUP_CB *cb)
166{
167 ENGINE_CLEANUP_ITEM *item = malloc(sizeof(ENGINE_CLEANUP_ITEM));
168
169 if (!item)
170 return NULL;
171 item->cb = cb;
172 return item;
173}
174
175void
176engine_cleanup_add_first(ENGINE_CLEANUP_CB *cb)
177{
178 ENGINE_CLEANUP_ITEM *item;
179
180 if (!int_cleanup_check(1))
181 return;
182 item = int_cleanup_item(cb);
183 if (item)
184 sk_ENGINE_CLEANUP_ITEM_insert(cleanup_stack, item, 0);
185}
186
187void
188engine_cleanup_add_last(ENGINE_CLEANUP_CB *cb)
189{
190 ENGINE_CLEANUP_ITEM *item;
191
192 if (!int_cleanup_check(1))
193 return;
194 item = int_cleanup_item(cb);
195 if (item)
196 sk_ENGINE_CLEANUP_ITEM_push(cleanup_stack, item);
197}
198/* The API function that performs all cleanup */
199static void
200engine_cleanup_cb_free(ENGINE_CLEANUP_ITEM *item)
201{
202 (*(item->cb))();
203 free(item);
204}
205
206void
207ENGINE_cleanup(void)
208{
209 if (int_cleanup_check(0)) {
210 sk_ENGINE_CLEANUP_ITEM_pop_free(cleanup_stack,
211 engine_cleanup_cb_free);
212 cleanup_stack = NULL;
213 }
214 /* FIXME: This should be handled (somehow) through RAND, eg. by it
215 * registering a cleanup callback. */
216 RAND_set_rand_method(NULL);
217}
218
219/* Now the "ex_data" support */
220
221int
222ENGINE_get_ex_new_index(long argl, void *argp, CRYPTO_EX_new *new_func,
223 CRYPTO_EX_dup *dup_func, CRYPTO_EX_free *free_func)
224{
225 return CRYPTO_get_ex_new_index(CRYPTO_EX_INDEX_ENGINE, argl, argp,
226 new_func, dup_func, free_func);
227}
228
229int
230ENGINE_set_ex_data(ENGINE *e, int idx, void *arg)
231{
232 return (CRYPTO_set_ex_data(&e->ex_data, idx, arg));
233}
234
235void *
236ENGINE_get_ex_data(const ENGINE *e, int idx)
237{
238 return (CRYPTO_get_ex_data(&e->ex_data, idx));
239}
240
241/* Functions to get/set an ENGINE's elements - mainly to avoid exposing the
242 * ENGINE structure itself. */
243
244int
245ENGINE_set_id(ENGINE *e, const char *id)
246{
247 if (id == NULL) {
248 ENGINEerr(ENGINE_F_ENGINE_SET_ID,
249 ERR_R_PASSED_NULL_PARAMETER);
250 return 0;
251 }
252 e->id = id;
253 return 1;
254}
255
256int
257ENGINE_set_name(ENGINE *e, const char *name)
258{
259 if (name == NULL) {
260 ENGINEerr(ENGINE_F_ENGINE_SET_NAME,
261 ERR_R_PASSED_NULL_PARAMETER);
262 return 0;
263 }
264 e->name = name;
265 return 1;
266}
267
268int
269ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f)
270{
271 e->destroy = destroy_f;
272 return 1;
273}
274
275int
276ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f)
277{
278 e->init = init_f;
279 return 1;
280}
281
282int
283ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f)
284{
285 e->finish = finish_f;
286 return 1;
287}
288
289int
290ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f)
291{
292 e->ctrl = ctrl_f;
293 return 1;
294}
295
296int
297ENGINE_set_flags(ENGINE *e, int flags)
298{
299 e->flags = flags;
300 return 1;
301}
302
303int
304ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns)
305{
306 e->cmd_defns = defns;
307 return 1;
308}
309
310const char *
311ENGINE_get_id(const ENGINE *e)
312{
313 return e->id;
314}
315
316const char *
317ENGINE_get_name(const ENGINE *e)
318{
319 return e->name;
320}
321
322ENGINE_GEN_INT_FUNC_PTR
323ENGINE_get_destroy_function(const ENGINE *e)
324{
325 return e->destroy;
326}
327
328ENGINE_GEN_INT_FUNC_PTR
329ENGINE_get_init_function(const ENGINE *e)
330{
331 return e->init;
332}
333
334ENGINE_GEN_INT_FUNC_PTR
335ENGINE_get_finish_function(const ENGINE *e)
336{
337 return e->finish;
338}
339
340ENGINE_CTRL_FUNC_PTR
341ENGINE_get_ctrl_function(const ENGINE *e)
342{
343 return e->ctrl;
344}
345
346int
347ENGINE_get_flags(const ENGINE *e)
348{
349 return e->flags;
350}
351
352const ENGINE_CMD_DEFN *
353ENGINE_get_cmd_defns(const ENGINE *e)
354{
355 return e->cmd_defns;
356}
357
358/* eng_lib.o is pretty much linked into anything that touches ENGINE already, so
359 * put the "static_state" hack here. */
360
361static int internal_static_hack = 0;
362
363void *
364ENGINE_get_static_state(void)
365{
366 return &internal_static_hack;
367}
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