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-rw-r--r--src/lib/libcrypto/x509/x509_trs.c332
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diff --git a/src/lib/libcrypto/x509/x509_trs.c b/src/lib/libcrypto/x509/x509_trs.c
deleted file mode 100644
index 42fb97f571..0000000000
--- a/src/lib/libcrypto/x509/x509_trs.c
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1/* $OpenBSD: x509_trs.c,v 1.20 2015/02/10 11:22:21 jsing Exp $ */
2/* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
3 * project 1999.
4 */
5/* ====================================================================
6 * Copyright (c) 1999 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 <stdio.h>
60#include <string.h>
61
62#include <openssl/err.h>
63#include <openssl/x509v3.h>
64
65static int tr_cmp(const X509_TRUST * const *a, const X509_TRUST * const *b);
66static void trtable_free(X509_TRUST *p);
67
68static int trust_1oidany(X509_TRUST *trust, X509 *x, int flags);
69static int trust_1oid(X509_TRUST *trust, X509 *x, int flags);
70static int trust_compat(X509_TRUST *trust, X509 *x, int flags);
71
72static int obj_trust(int id, X509 *x, int flags);
73static int (*default_trust)(int id, X509 *x, int flags) = obj_trust;
74
75/* WARNING: the following table should be kept in order of trust
76 * and without any gaps so we can just subtract the minimum trust
77 * value to get an index into the table
78 */
79
80static X509_TRUST trstandard[] = {
81 {X509_TRUST_COMPAT, 0, trust_compat, "compatible", 0, NULL},
82 {X509_TRUST_SSL_CLIENT, 0, trust_1oidany, "SSL Client", NID_client_auth, NULL},
83 {X509_TRUST_SSL_SERVER, 0, trust_1oidany, "SSL Server", NID_server_auth, NULL},
84 {X509_TRUST_EMAIL, 0, trust_1oidany, "S/MIME email", NID_email_protect, NULL},
85 {X509_TRUST_OBJECT_SIGN, 0, trust_1oidany, "Object Signer", NID_code_sign, NULL},
86 {X509_TRUST_OCSP_SIGN, 0, trust_1oid, "OCSP responder", NID_OCSP_sign, NULL},
87 {X509_TRUST_OCSP_REQUEST, 0, trust_1oid, "OCSP request", NID_ad_OCSP, NULL},
88 {X509_TRUST_TSA, 0, trust_1oidany, "TSA server", NID_time_stamp, NULL}
89};
90
91#define X509_TRUST_COUNT (sizeof(trstandard)/sizeof(X509_TRUST))
92
93static STACK_OF(X509_TRUST) *trtable = NULL;
94
95static int
96tr_cmp(const X509_TRUST * const *a, const X509_TRUST * const *b)
97{
98 return (*a)->trust - (*b)->trust;
99}
100
101int
102(*X509_TRUST_set_default(int (*trust)(int , X509 *, int)))(int, X509 *, int)
103{
104 int (*oldtrust)(int , X509 *, int);
105
106 oldtrust = default_trust;
107 default_trust = trust;
108 return oldtrust;
109}
110
111int
112X509_check_trust(X509 *x, int id, int flags)
113{
114 X509_TRUST *pt;
115 int idx;
116
117 if (id == -1)
118 return 1;
119 idx = X509_TRUST_get_by_id(id);
120 if (idx == -1)
121 return default_trust(id, x, flags);
122 pt = X509_TRUST_get0(idx);
123 return pt->check_trust(pt, x, flags);
124}
125
126int
127X509_TRUST_get_count(void)
128{
129 if (!trtable)
130 return X509_TRUST_COUNT;
131 return sk_X509_TRUST_num(trtable) + X509_TRUST_COUNT;
132}
133
134X509_TRUST *
135X509_TRUST_get0(int idx)
136{
137 if (idx < 0)
138 return NULL;
139 if (idx < (int)X509_TRUST_COUNT)
140 return trstandard + idx;
141 return sk_X509_TRUST_value(trtable, idx - X509_TRUST_COUNT);
142}
143
144int
145X509_TRUST_get_by_id(int id)
146{
147 X509_TRUST tmp;
148 int idx;
149
150 if ((id >= X509_TRUST_MIN) && (id <= X509_TRUST_MAX))
151 return id - X509_TRUST_MIN;
152 tmp.trust = id;
153 if (!trtable)
154 return -1;
155 idx = sk_X509_TRUST_find(trtable, &tmp);
156 if (idx == -1)
157 return -1;
158 return idx + X509_TRUST_COUNT;
159}
160
161int
162X509_TRUST_set(int *t, int trust)
163{
164 if (X509_TRUST_get_by_id(trust) == -1) {
165 X509err(X509_F_X509_TRUST_SET, X509_R_INVALID_TRUST);
166 return 0;
167 }
168 *t = trust;
169 return 1;
170}
171
172int
173X509_TRUST_add(int id, int flags, int (*ck)(X509_TRUST *, X509 *, int),
174 char *name, int arg1, void *arg2)
175{
176 int idx;
177 X509_TRUST *trtmp;
178 char *name_dup;
179
180 /* This is set according to what we change: application can't set it */
181 flags &= ~X509_TRUST_DYNAMIC;
182 /* This will always be set for application modified trust entries */
183 flags |= X509_TRUST_DYNAMIC_NAME;
184 /* Get existing entry if any */
185 idx = X509_TRUST_get_by_id(id);
186 /* Need a new entry */
187 if (idx == -1) {
188 if (!(trtmp = malloc(sizeof(X509_TRUST)))) {
189 X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
190 return 0;
191 }
192 trtmp->flags = X509_TRUST_DYNAMIC;
193 } else {
194 trtmp = X509_TRUST_get0(idx);
195 if (trtmp == NULL) {
196 X509err(X509_F_X509_TRUST_ADD, X509_R_INVALID_TRUST);
197 return 0;
198 }
199 }
200
201 if ((name_dup = strdup(name)) == NULL)
202 goto err;
203
204 /* free existing name if dynamic */
205 if (trtmp->flags & X509_TRUST_DYNAMIC_NAME)
206 free(trtmp->name);
207 /* dup supplied name */
208 trtmp->name = name_dup;
209 /* Keep the dynamic flag of existing entry */
210 trtmp->flags &= X509_TRUST_DYNAMIC;
211 /* Set all other flags */
212 trtmp->flags |= flags;
213
214 trtmp->trust = id;
215 trtmp->check_trust = ck;
216 trtmp->arg1 = arg1;
217 trtmp->arg2 = arg2;
218
219 /* If it's a new entry, manage the dynamic table */
220 if (idx == -1) {
221 if (trtable == NULL &&
222 (trtable = sk_X509_TRUST_new(tr_cmp)) == NULL)
223 goto err;
224 if (sk_X509_TRUST_push(trtable, trtmp) == 0)
225 goto err;
226 }
227 return 1;
228
229err:
230 free(name_dup);
231 if (idx == -1)
232 free(trtmp);
233 X509err(X509_F_X509_TRUST_ADD, ERR_R_MALLOC_FAILURE);
234 return 0;
235}
236
237static void
238trtable_free(X509_TRUST *p)
239{
240 if (!p)
241 return;
242 if (p->flags & X509_TRUST_DYNAMIC) {
243 if (p->flags & X509_TRUST_DYNAMIC_NAME)
244 free(p->name);
245 free(p);
246 }
247}
248
249void
250X509_TRUST_cleanup(void)
251{
252 unsigned int i;
253
254 for (i = 0; i < X509_TRUST_COUNT; i++)
255 trtable_free(trstandard + i);
256 sk_X509_TRUST_pop_free(trtable, trtable_free);
257 trtable = NULL;
258}
259
260int
261X509_TRUST_get_flags(X509_TRUST *xp)
262{
263 return xp->flags;
264}
265
266char *
267X509_TRUST_get0_name(X509_TRUST *xp)
268{
269 return xp->name;
270}
271
272int
273X509_TRUST_get_trust(X509_TRUST *xp)
274{
275 return xp->trust;
276}
277
278static int
279trust_1oidany(X509_TRUST *trust, X509 *x, int flags)
280{
281 if (x->aux && (x->aux->trust || x->aux->reject))
282 return obj_trust(trust->arg1, x, flags);
283 /* we don't have any trust settings: for compatibility
284 * we return trusted if it is self signed
285 */
286 return trust_compat(trust, x, flags);
287}
288
289static int
290trust_1oid(X509_TRUST *trust, X509 *x, int flags)
291{
292 if (x->aux)
293 return obj_trust(trust->arg1, x, flags);
294 return X509_TRUST_UNTRUSTED;
295}
296
297static int
298trust_compat(X509_TRUST *trust, X509 *x, int flags)
299{
300 X509_check_purpose(x, -1, 0);
301 if (x->ex_flags & EXFLAG_SS)
302 return X509_TRUST_TRUSTED;
303 else
304 return X509_TRUST_UNTRUSTED;
305}
306
307static int
308obj_trust(int id, X509 *x, int flags)
309{
310 ASN1_OBJECT *obj;
311 int i;
312 X509_CERT_AUX *ax;
313
314 ax = x->aux;
315 if (!ax)
316 return X509_TRUST_UNTRUSTED;
317 if (ax->reject) {
318 for (i = 0; i < sk_ASN1_OBJECT_num(ax->reject); i++) {
319 obj = sk_ASN1_OBJECT_value(ax->reject, i);
320 if (OBJ_obj2nid(obj) == id)
321 return X509_TRUST_REJECTED;
322 }
323 }
324 if (ax->trust) {
325 for (i = 0; i < sk_ASN1_OBJECT_num(ax->trust); i++) {
326 obj = sk_ASN1_OBJECT_value(ax->trust, i);
327 if (OBJ_obj2nid(obj) == id)
328 return X509_TRUST_TRUSTED;
329 }
330 }
331 return X509_TRUST_UNTRUSTED;
332}
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