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eng_lib.c

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1/* $OpenBSD: eng_lib.c,v 1.14 2018/04/14 07:18:37 tb 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 if (!OPENSSL_init_crypto(0, NULL))
!OPENSSL_init_... ((void *)0) )Description
TRUEnever evaluated
FALSEevaluated 516 times by 1 test
Evaluated by:
  • enginetest
0-516
74 return NULL;
never executed: return ((void *)0) ;
0
75-
76 ret = malloc(sizeof(ENGINE));-
77 if (ret == NULL) {
ret == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 516 times by 1 test
Evaluated by:
  • enginetest
0-516
78 ENGINEerror(ERR_R_MALLOC_FAILURE);-
79 return NULL;
never executed: return ((void *)0) ;
0
80 }-
81 memset(ret, 0, sizeof(ENGINE));-
82 ret->struct_ref = 1;-
83 engine_ref_debug(ret, 0, 1)-
84 CRYPTO_new_ex_data(CRYPTO_EX_INDEX_ENGINE, ret, &ret->ex_data);-
85 return ret;
executed 516 times by 1 test: return ret;
Executed by:
  • enginetest
516
86}-
87-
88/* Placed here (close proximity to ENGINE_new) so that modifications to the-
89 * elements of the ENGINE structure are more likely to be caught and changed-
90 * here. */-
91void-
92engine_set_all_null(ENGINE *e)-
93{-
94 e->id = NULL;-
95 e->name = NULL;-
96 e->rsa_meth = NULL;-
97 e->dsa_meth = NULL;-
98 e->dh_meth = NULL;-
99 e->rand_meth = NULL;-
100 e->store_meth = NULL;-
101 e->ciphers = NULL;-
102 e->digests = NULL;-
103 e->destroy = NULL;-
104 e->init = NULL;-
105 e->finish = NULL;-
106 e->ctrl = NULL;-
107 e->load_privkey = NULL;-
108 e->load_pubkey = NULL;-
109 e->cmd_defns = NULL;-
110 e->flags = 0;-
111}
never executed: end of block
0
112-
113int-
114engine_free_util(ENGINE *e, int locked)-
115{-
116 int i;-
117-
118 if (e == NULL)
e == ((void *)0)Description
TRUEevaluated 11 times by 2 tests
Evaluated by:
  • enginetest
  • freenull
FALSEevaluated 1553 times by 1 test
Evaluated by:
  • enginetest
11-1553
119 return 1;
executed 11 times by 2 tests: return 1;
Executed by:
  • enginetest
  • freenull
11
120 if (locked)
lockedDescription
TRUEevaluated 1036 times by 1 test
Evaluated by:
  • enginetest
FALSEevaluated 517 times by 1 test
Evaluated by:
  • enginetest
517-1036
121 i = CRYPTO_add(&e->struct_ref, -1, CRYPTO_LOCK_ENGINE);
executed 1036 times by 1 test: i = CRYPTO_add_lock(&e->struct_ref,-1,30,__FILE__,121);
Executed by:
  • enginetest
1036
122 else-
123 i = --e->struct_ref;
executed 517 times by 1 test: i = --e->struct_ref;
Executed by:
  • enginetest
517
124 engine_ref_debug(e, 0, -1)-
125 if (i > 0)
i > 0Description
TRUEevaluated 1037 times by 1 test
Evaluated by:
  • enginetest
FALSEevaluated 516 times by 1 test
Evaluated by:
  • enginetest
516-1037
126 return 1;
executed 1037 times by 1 test: return 1;
Executed by:
  • enginetest
1037
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)
e->destroyDescription
TRUEnever evaluated
FALSEevaluated 516 times by 1 test
Evaluated by:
  • enginetest
0-516
134 e->destroy(e);
never executed: e->destroy(e);
0
135 CRYPTO_free_ex_data(CRYPTO_EX_INDEX_ENGINE, e, &e->ex_data);-
136 free(e);-
137 return 1;
executed 516 times by 1 test: return 1;
Executed by:
  • enginetest
516
138}-
139-
140int-
141ENGINE_free(ENGINE *e)-
142{-
143 return engine_free_util(e, 1);
executed 1047 times by 2 tests: return engine_free_util(e, 1);
Executed by:
  • enginetest
  • freenull
1047
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)
cleanup_stackDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • enginetest
FALSEevaluated 54 times by 5 tests
Evaluated by:
  • ectest
  • enginetest
  • evptest
  • pbkdf2
  • ssltest
4-54
157 return 1;
executed 4 times by 1 test: return 1;
Executed by:
  • enginetest
4
158 if (!create)
!createDescription
TRUEevaluated 53 times by 4 tests
Evaluated by:
  • ectest
  • evptest
  • pbkdf2
  • ssltest
FALSEevaluated 1 time by 1 test
Evaluated by:
  • enginetest
1-53
159 return 0;
executed 53 times by 4 tests: return 0;
Executed by:
  • ectest
  • evptest
  • pbkdf2
  • ssltest
53
160 cleanup_stack = sk_ENGINE_CLEANUP_ITEM_new_null();-
161 return (cleanup_stack ? 1 : 0);
executed 1 time by 1 test: return (cleanup_stack ? 1 : 0);
Executed by:
  • enginetest
cleanup_stackDescription
TRUEevaluated 1 time by 1 test
Evaluated by:
  • enginetest
FALSEnever evaluated
0-1
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)
!itemDescription
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • enginetest
0-4
170 return NULL;
never executed: return ((void *)0) ;
0
171 item->cb = cb;-
172 return item;
executed 4 times by 1 test: return item;
Executed by:
  • enginetest
4
173}-
174-
175void-
176engine_cleanup_add_first(ENGINE_CLEANUP_CB *cb)-
177{-
178 ENGINE_CLEANUP_ITEM *item;-
179-
180 if (!int_cleanup_check(1))
!int_cleanup_check(1)Description
TRUEnever evaluated
FALSEnever evaluated
0
181 return;
never executed: return;
0
182 item = int_cleanup_item(cb);-
183 if (item)
itemDescription
TRUEnever evaluated
FALSEnever evaluated
0
184 sk_ENGINE_CLEANUP_ITEM_insert(cleanup_stack, item, 0);
never executed: sk_insert(((_STACK*) (1 ? (cleanup_stack) : (struct stack_st_ENGINE_CLEANUP_ITEM*)0)), ((void*) (1 ? (item) : (ENGINE_CLEANUP_ITEM*)0)), (0));
0
185}
never executed: end of block
0
186-
187void-
188engine_cleanup_add_last(ENGINE_CLEANUP_CB *cb)-
189{-
190 ENGINE_CLEANUP_ITEM *item;-
191-
192 if (!int_cleanup_check(1))
!int_cleanup_check(1)Description
TRUEnever evaluated
FALSEevaluated 4 times by 1 test
Evaluated by:
  • enginetest
0-4
193 return;
never executed: return;
0
194 item = int_cleanup_item(cb);-
195 if (item)
itemDescription
TRUEevaluated 4 times by 1 test
Evaluated by:
  • enginetest
FALSEnever evaluated
0-4
196 sk_ENGINE_CLEANUP_ITEM_push(cleanup_stack, item);
executed 4 times by 1 test: sk_push(((_STACK*) (1 ? (cleanup_stack) : (struct stack_st_ENGINE_CLEANUP_ITEM*)0)), ((void*) (1 ? (item) : (ENGINE_CLEANUP_ITEM*)0)));
Executed by:
  • enginetest
4
197}
executed 4 times by 1 test: end of block
Executed by:
  • enginetest
4
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}
executed 4 times by 1 test: end of block
Executed by:
  • enginetest
4
205-
206void-
207ENGINE_cleanup(void)-
208{-
209 if (int_cleanup_check(0)) {
int_cleanup_check(0)Description
TRUEevaluated 1 time by 1 test
Evaluated by:
  • enginetest
FALSEevaluated 53 times by 4 tests
Evaluated by:
  • ectest
  • evptest
  • pbkdf2
  • ssltest
1-53
210 sk_ENGINE_CLEANUP_ITEM_pop_free(cleanup_stack,-
211 engine_cleanup_cb_free);-
212 cleanup_stack = NULL;-
213 }
executed 1 time by 1 test: end of block
Executed by:
  • enginetest
1
214 /* FIXME: This should be handled (somehow) through RAND, eg. by it-
215 * registering a cleanup callback. */-
216 RAND_set_rand_method(NULL);-
217}
executed 54 times by 5 tests: end of block
Executed by:
  • ectest
  • enginetest
  • evptest
  • pbkdf2
  • ssltest
54
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,
never executed: return CRYPTO_get_ex_new_index(9, argl, argp, new_func, dup_func, free_func);
0
226 new_func, dup_func, free_func);
never executed: return CRYPTO_get_ex_new_index(9, argl, argp, new_func, dup_func, free_func);
0
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));
never executed: return (CRYPTO_set_ex_data(&e->ex_data, idx, arg));
0
233}-
234-
235void *-
236ENGINE_get_ex_data(const ENGINE *e, int idx)-
237{-
238 return (CRYPTO_get_ex_data(&e->ex_data, idx));
never executed: return (CRYPTO_get_ex_data(&e->ex_data, idx));
0
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) {
id == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 516 times by 1 test
Evaluated by:
  • enginetest
0-516
248 ENGINEerror(ERR_R_PASSED_NULL_PARAMETER);-
249 return 0;
never executed: return 0;
0
250 }-
251 e->id = id;-
252 return 1;
executed 516 times by 1 test: return 1;
Executed by:
  • enginetest
516
253}-
254-
255int-
256ENGINE_set_name(ENGINE *e, const char *name)-
257{-
258 if (name == NULL) {
name == ((void *)0)Description
TRUEnever evaluated
FALSEevaluated 516 times by 1 test
Evaluated by:
  • enginetest
0-516
259 ENGINEerror(ERR_R_PASSED_NULL_PARAMETER);-
260 return 0;
never executed: return 0;
0
261 }-
262 e->name = name;-
263 return 1;
executed 516 times by 1 test: return 1;
Executed by:
  • enginetest
516
264}-
265-
266int-
267ENGINE_set_destroy_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR destroy_f)-
268{-
269 e->destroy = destroy_f;-
270 return 1;
never executed: return 1;
0
271}-
272-
273int-
274ENGINE_set_init_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR init_f)-
275{-
276 e->init = init_f;-
277 return 1;
never executed: return 1;
0
278}-
279-
280int-
281ENGINE_set_finish_function(ENGINE *e, ENGINE_GEN_INT_FUNC_PTR finish_f)-
282{-
283 e->finish = finish_f;-
284 return 1;
never executed: return 1;
0
285}-
286-
287int-
288ENGINE_set_ctrl_function(ENGINE *e, ENGINE_CTRL_FUNC_PTR ctrl_f)-
289{-
290 e->ctrl = ctrl_f;-
291 return 1;
never executed: return 1;
0
292}-
293-
294int-
295ENGINE_set_flags(ENGINE *e, int flags)-
296{-
297 e->flags = flags;-
298 return 1;
never executed: return 1;
0
299}-
300-
301int-
302ENGINE_set_cmd_defns(ENGINE *e, const ENGINE_CMD_DEFN *defns)-
303{-
304 e->cmd_defns = defns;-
305 return 1;
never executed: return 1;
0
306}-
307-
308const char *-
309ENGINE_get_id(const ENGINE *e)-
310{-
311 return e->id;
executed 519 times by 1 test: return e->id;
Executed by:
  • enginetest
519
312}-
313-
314const char *-
315ENGINE_get_name(const ENGINE *e)-
316{-
317 return e->name;
executed 519 times by 1 test: return e->name;
Executed by:
  • enginetest
519
318}-
319-
320ENGINE_GEN_INT_FUNC_PTR-
321ENGINE_get_destroy_function(const ENGINE *e)-
322{-
323 return e->destroy;
never executed: return e->destroy;
0
324}-
325-
326ENGINE_GEN_INT_FUNC_PTR-
327ENGINE_get_init_function(const ENGINE *e)-
328{-
329 return e->init;
never executed: return e->init;
0
330}-
331-
332ENGINE_GEN_INT_FUNC_PTR-
333ENGINE_get_finish_function(const ENGINE *e)-
334{-
335 return e->finish;
never executed: return e->finish;
0
336}-
337-
338ENGINE_CTRL_FUNC_PTR-
339ENGINE_get_ctrl_function(const ENGINE *e)-
340{-
341 return e->ctrl;
never executed: return e->ctrl;
0
342}-
343-
344int-
345ENGINE_get_flags(const ENGINE *e)-
346{-
347 return e->flags;
never executed: return e->flags;
0
348}-
349-
350const ENGINE_CMD_DEFN *-
351ENGINE_get_cmd_defns(const ENGINE *e)-
352{-
353 return e->cmd_defns;
never executed: return e->cmd_defns;
0
354}-
355-
356/* eng_lib.o is pretty much linked into anything that touches ENGINE already, so-
357 * put the "static_state" hack here. */-
358-
359static int internal_static_hack = 0;-
360-
361void *-
362ENGINE_get_static_state(void)-
363{-
364 return &internal_static_hack;
never executed: return &internal_static_hack;
0
365}-
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