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tb_asnmth.c

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1/* $OpenBSD: tb_asnmth.c,v 1.6 2017/01/29 17:49:23 beck Exp $ */-
2/* ====================================================================-
3 * Copyright (c) 2006 The OpenSSL Project. All rights reserved.-
4 *-
5 * Redistribution and use in source and binary forms, with or without-
6 * modification, are permitted provided that the following conditions-
7 * are met:-
8 *-
9 * 1. Redistributions of source code must retain the above copyright-
10 * notice, this list of conditions and the following disclaimer.-
11 *-
12 * 2. Redistributions in binary form must reproduce the above copyright-
13 * notice, this list of conditions and the following disclaimer in-
14 * the documentation and/or other materials provided with the-
15 * distribution.-
16 *-
17 * 3. All advertising materials mentioning features or use of this-
18 * software must display the following acknowledgment:-
19 * "This product includes software developed by the OpenSSL Project-
20 * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"-
21 *-
22 * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to-
23 * endorse or promote products derived from this software without-
24 * prior written permission. For written permission, please contact-
25 * licensing@OpenSSL.org.-
26 *-
27 * 5. Products derived from this software may not be called "OpenSSL"-
28 * nor may "OpenSSL" appear in their names without prior written-
29 * permission of the OpenSSL Project.-
30 *-
31 * 6. Redistributions of any form whatsoever must retain the following-
32 * acknowledgment:-
33 * "This product includes software developed by the OpenSSL Project-
34 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"-
35 *-
36 * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY-
37 * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE-
38 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR-
39 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR-
40 * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,-
41 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT-
42 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;-
43 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)-
44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,-
45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)-
46 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED-
47 * OF THE POSSIBILITY OF SUCH DAMAGE.-
48 * ====================================================================-
49 *-
50 * This product includes cryptographic software written by Eric Young-
51 * (eay@cryptsoft.com). This product includes software written by Tim-
52 * Hudson (tjh@cryptsoft.com).-
53 *-
54 */-
55-
56#include <string.h>-
57-
58#include <openssl/err.h>-
59-
60#include "eng_int.h"-
61#include "asn1_locl.h"-
62#include <openssl/evp.h>-
63-
64/* If this symbol is defined then ENGINE_get_pkey_asn1_meth_engine(), the-
65 * function that is used by EVP to hook in pkey_asn1_meth code and cache-
66 * defaults (etc), will display brief debugging summaries to stderr with the-
67 * 'nid'. */-
68/* #define ENGINE_PKEY_ASN1_METH_DEBUG */-
69-
70static ENGINE_TABLE *pkey_asn1_meth_table = NULL;-
71-
72void-
73ENGINE_unregister_pkey_asn1_meths(ENGINE *e)-
74{-
75 engine_table_unregister(&pkey_asn1_meth_table, e);-
76}
never executed: end of block
0
77-
78static void-
79engine_unregister_all_pkey_asn1_meths(void)-
80{-
81 engine_table_cleanup(&pkey_asn1_meth_table);-
82}
never executed: end of block
0
83-
84int-
85ENGINE_register_pkey_asn1_meths(ENGINE *e)-
86{-
87 if (e->pkey_asn1_meths) {
e->pkey_asn1_methsDescription
TRUEnever evaluated
FALSEnever evaluated
0
88 const int *nids;-
89 int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0);-
90 if (num_nids > 0)
num_nids > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
91 return engine_table_register(&pkey_asn1_meth_table,
never executed: return engine_table_register(&pkey_asn1_meth_table, engine_unregister_all_pkey_asn1_meths, e, nids, num_nids, 0);
0
92 engine_unregister_all_pkey_asn1_meths, e, nids,
never executed: return engine_table_register(&pkey_asn1_meth_table, engine_unregister_all_pkey_asn1_meths, e, nids, num_nids, 0);
0
93 num_nids, 0);
never executed: return engine_table_register(&pkey_asn1_meth_table, engine_unregister_all_pkey_asn1_meths, e, nids, num_nids, 0);
0
94 }
never executed: end of block
0
95 return 1;
never executed: return 1;
0
96}-
97-
98void-
99ENGINE_register_all_pkey_asn1_meths(void)-
100{-
101 ENGINE *e;-
102-
103 for (e = ENGINE_get_first(); e; e = ENGINE_get_next(e))
eDescription
TRUEnever evaluated
FALSEnever evaluated
0
104 ENGINE_register_pkey_asn1_meths(e);
never executed: ENGINE_register_pkey_asn1_meths(e);
0
105}
never executed: end of block
0
106-
107int-
108ENGINE_set_default_pkey_asn1_meths(ENGINE *e)-
109{-
110 if (e->pkey_asn1_meths) {
e->pkey_asn1_methsDescription
TRUEnever evaluated
FALSEnever evaluated
0
111 const int *nids;-
112 int num_nids = e->pkey_asn1_meths(e, NULL, &nids, 0);-
113 if (num_nids > 0)
num_nids > 0Description
TRUEnever evaluated
FALSEnever evaluated
0
114 return engine_table_register(&pkey_asn1_meth_table,
never executed: return engine_table_register(&pkey_asn1_meth_table, engine_unregister_all_pkey_asn1_meths, e, nids, num_nids, 1);
0
115 engine_unregister_all_pkey_asn1_meths, e, nids,
never executed: return engine_table_register(&pkey_asn1_meth_table, engine_unregister_all_pkey_asn1_meths, e, nids, num_nids, 1);
0
116 num_nids, 1);
never executed: return engine_table_register(&pkey_asn1_meth_table, engine_unregister_all_pkey_asn1_meths, e, nids, num_nids, 1);
0
117 }
never executed: end of block
0
118 return 1;
never executed: return 1;
0
119}-
120-
121/* Exposed API function to get a functional reference from the implementation-
122 * table (ie. try to get a functional reference from the tabled structural-
123 * references) for a given pkey_asn1_meth 'nid' */-
124ENGINE *-
125ENGINE_get_pkey_asn1_meth_engine(int nid)-
126{-
127 return engine_table_select(&pkey_asn1_meth_table, nid);
executed 2142 times by 8 tests: return engine_table_select(&pkey_asn1_meth_table, nid);
Executed by:
  • dsatest
  • gost2814789t
  • libcrypto.so.44.0.1
  • pkcs7test
  • servertest
  • ssltest
  • tls_prf
  • tlstest
2142
128}-
129-
130/* Obtains a pkey_asn1_meth implementation from an ENGINE functional reference */-
131const EVP_PKEY_ASN1_METHOD *-
132ENGINE_get_pkey_asn1_meth(ENGINE *e, int nid)-
133{-
134 EVP_PKEY_ASN1_METHOD *ret;-
135 ENGINE_PKEY_ASN1_METHS_PTR fn = ENGINE_get_pkey_asn1_meths(e);-
136-
137 if (!fn || !fn(e, &ret, NULL, nid)) {
!fnDescription
TRUEnever evaluated
FALSEnever evaluated
!fn(e, &ret, (...id *)0) , nid)Description
TRUEnever evaluated
FALSEnever evaluated
0
138 ENGINEerror(ENGINE_R_UNIMPLEMENTED_PUBLIC_KEY_METHOD);-
139 return NULL;
never executed: return ((void *)0) ;
0
140 }-
141 return ret;
never executed: return ret;
0
142}-
143-
144/* Gets the pkey_asn1_meth callback from an ENGINE structure */-
145ENGINE_PKEY_ASN1_METHS_PTR-
146ENGINE_get_pkey_asn1_meths(const ENGINE *e)-
147{-
148 return e->pkey_asn1_meths;
never executed: return e->pkey_asn1_meths;
0
149}-
150-
151/* Sets the pkey_asn1_meth callback in an ENGINE structure */-
152int-
153ENGINE_set_pkey_asn1_meths(ENGINE *e, ENGINE_PKEY_ASN1_METHS_PTR f)-
154{-
155 e->pkey_asn1_meths = f;-
156 return 1;
never executed: return 1;
0
157}-
158-
159/* Internal function to free up EVP_PKEY_ASN1_METHOD structures before an-
160 * ENGINE is destroyed-
161 */-
162-
163void-
164engine_pkey_asn1_meths_free(ENGINE *e)-
165{-
166 int i;-
167 EVP_PKEY_ASN1_METHOD *pkm;-
168-
169 if (e->pkey_asn1_meths) {
e->pkey_asn1_methsDescription
TRUEnever evaluated
FALSEevaluated 516 times by 1 test
Evaluated by:
  • enginetest
0-516
170 const int *pknids;-
171 int npknids;-
172 npknids = e->pkey_asn1_meths(e, NULL, &pknids, 0);-
173 for (i = 0; i < npknids; i++) {
i < npknidsDescription
TRUEnever evaluated
FALSEnever evaluated
0
174 if (e->pkey_asn1_meths(e, &pkm, NULL, pknids[i])) {
e->pkey_asn1_m...) , pknids[i])Description
TRUEnever evaluated
FALSEnever evaluated
0
175 EVP_PKEY_asn1_free(pkm);-
176 }
never executed: end of block
0
177 }
never executed: end of block
0
178 }
never executed: end of block
0
179}
executed 516 times by 1 test: end of block
Executed by:
  • enginetest
516
180-
181/* Find a method based on a string. This does a linear search through-
182 * all implemented algorithms. This is OK in practice because only-
183 * a small number of algorithms are likely to be implemented in an engine-
184 * and it is not used for speed critical operations.-
185 */-
186-
187const EVP_PKEY_ASN1_METHOD *-
188ENGINE_get_pkey_asn1_meth_str(ENGINE *e, const char *str, int len)-
189{-
190 int i, nidcount;-
191 const int *nids;-
192 EVP_PKEY_ASN1_METHOD *ameth;-
193-
194 if (!e->pkey_asn1_meths)
!e->pkey_asn1_methsDescription
TRUEnever evaluated
FALSEnever evaluated
0
195 return NULL;
never executed: return ((void *)0) ;
0
196 if (len == -1)
len == -1Description
TRUEnever evaluated
FALSEnever evaluated
0
197 len = strlen(str);
never executed: len = strlen(str);
0
198 nidcount = e->pkey_asn1_meths(e, NULL, &nids, 0);-
199 for (i = 0; i < nidcount; i++) {
i < nidcountDescription
TRUEnever evaluated
FALSEnever evaluated
0
200 e->pkey_asn1_meths(e, &ameth, NULL, nids[i]);-
201 if (((int)strlen(ameth->pem_str) == len) &&
((int)strlen(a...m_str) == len)Description
TRUEnever evaluated
FALSEnever evaluated
0
202 !strncasecmp(ameth->pem_str, str, len))
!strncasecmp(a...str, str, len)Description
TRUEnever evaluated
FALSEnever evaluated
0
203 return ameth;
never executed: return ameth;
0
204 }
never executed: end of block
0
205 return NULL;
never executed: return ((void *)0) ;
0
206}-
207-
208typedef struct {-
209 ENGINE *e;-
210 const EVP_PKEY_ASN1_METHOD *ameth;-
211 const char *str;-
212 int len;-
213} ENGINE_FIND_STR;-
214-
215static void-
216look_str_cb(int nid, STACK_OF(ENGINE) *sk, ENGINE *def, void *arg)-
217{-
218 ENGINE_FIND_STR *lk = arg;-
219 int i;-
220-
221 if (lk->ameth)
lk->amethDescription
TRUEnever evaluated
FALSEnever evaluated
0
222 return;
never executed: return;
0
223 for (i = 0; i < sk_ENGINE_num(sk); i++) {
i < sk_num(((_...t_ENGINE*)0)))Description
TRUEnever evaluated
FALSEnever evaluated
0
224 ENGINE *e = sk_ENGINE_value(sk, i);-
225 EVP_PKEY_ASN1_METHOD *ameth;-
226 e->pkey_asn1_meths(e, &ameth, NULL, nid);-
227 if (((int)strlen(ameth->pem_str) == lk->len) &&
((int)strlen(a...r) == lk->len)Description
TRUEnever evaluated
FALSEnever evaluated
0
228 !strncasecmp(ameth->pem_str, lk->str, lk->len)) {
!strncasecmp(a...>str, lk->len)Description
TRUEnever evaluated
FALSEnever evaluated
0
229 lk->e = e;-
230 lk->ameth = ameth;-
231 return;
never executed: return;
0
232 }-
233 }
never executed: end of block
0
234}
never executed: end of block
0
235-
236const EVP_PKEY_ASN1_METHOD *-
237ENGINE_pkey_asn1_find_str(ENGINE **pe, const char *str, int len)-
238{-
239 ENGINE_FIND_STR fstr;-
240-
241 fstr.e = NULL;-
242 fstr.ameth = NULL;-
243 fstr.str = str;-
244 fstr.len = len;-
245 CRYPTO_w_lock(CRYPTO_LOCK_ENGINE);-
246 engine_table_doall(pkey_asn1_meth_table, look_str_cb, &fstr);-
247 /* If found obtain a structural reference to engine */-
248 if (fstr.e) {
fstr.eDescription
TRUEnever evaluated
FALSEevaluated 2 times by 1 test
Evaluated by:
  • libcrypto.so.44.0.1
0-2
249 fstr.e->struct_ref++;-
250 engine_ref_debug(fstr.e, 0, 1)-
251 }
never executed: end of block
0
252 *pe = fstr.e;-
253 CRYPTO_w_unlock(CRYPTO_LOCK_ENGINE);-
254 return fstr.ameth;
executed 2 times by 1 test: return fstr.ameth;
Executed by:
  • libcrypto.so.44.0.1
2
255}-
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