2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL
5 /* ====================================================================
6 * Copyright (c) 2004 The OpenSSL Project. All rights reserved.
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
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
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/)"
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.
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.
34 * 6. Redistributions of any form whatsoever must retain the following
36 * "This product includes software developed by the OpenSSL Project
37 * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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 * ====================================================================
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).
62 #include <openssl/crypto.h>
63 #include <openssl/lhash.h>
64 #include <openssl/buffer.h>
65 #include <openssl/x509.h>
66 #include <openssl/x509v3.h>
68 /* X509_VERIFY_PARAM functions */
70 static void x509_verify_param_zero(X509_VERIFY_PARAM *param)
77 /*param->inh_flags = X509_VP_FLAG_DEFAULT;*/
83 sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
84 param->policies = NULL;
88 OPENSSL_free(param->host);
94 OPENSSL_free(param->email);
100 OPENSSL_free(param->ip);
106 X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
108 X509_VERIFY_PARAM *param;
109 param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
110 memset(param, 0, sizeof(X509_VERIFY_PARAM));
111 x509_verify_param_zero(param);
115 void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
117 x509_verify_param_zero(param);
121 /* This function determines how parameters are "inherited" from one structure
122 * to another. There are several different ways this can happen.
124 * 1. If a child structure needs to have its values initialized from a parent
125 * they are simply copied across. For example SSL_CTX copied to SSL.
126 * 2. If the structure should take on values only if they are currently unset.
127 * For example the values in an SSL structure will take appropriate value
128 * for SSL servers or clients but only if the application has not set new
131 * The "inh_flags" field determines how this function behaves.
133 * Normally any values which are set in the default are not copied from the
134 * destination and verify flags are ORed together.
136 * If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
137 * to the destination. Effectively the values in "to" become default values
138 * which will be used only if nothing new is set in "from".
140 * If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
141 * they are set or not. Flags is still Ored though.
143 * If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
146 * If X509_VP_FLAG_LOCKED is set then no values are copied.
148 * If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
149 * after the next call.
152 /* Macro to test if a field should be copied from src to dest */
154 #define test_x509_verify_param_copy(field, def) \
156 ((src->field != def) && (to_default || (dest->field == def))))
158 /* Macro to test and copy a field if necessary */
160 #define x509_verify_param_copy(field, def) \
161 if (test_x509_verify_param_copy(field, def)) \
162 dest->field = src->field
165 int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
166 const X509_VERIFY_PARAM *src)
168 unsigned long inh_flags;
169 int to_default, to_overwrite;
172 inh_flags = dest->inh_flags | src->inh_flags;
174 if (inh_flags & X509_VP_FLAG_ONCE)
177 if (inh_flags & X509_VP_FLAG_LOCKED)
180 if (inh_flags & X509_VP_FLAG_DEFAULT)
185 if (inh_flags & X509_VP_FLAG_OVERWRITE)
190 x509_verify_param_copy(purpose, 0);
191 x509_verify_param_copy(trust, 0);
192 x509_verify_param_copy(depth, -1);
194 /* If overwrite or check time not set, copy across */
196 if (to_overwrite || !(dest->flags & X509_V_FLAG_USE_CHECK_TIME))
198 dest->check_time = src->check_time;
199 dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
200 /* Don't need to copy flag: that is done below */
203 if (inh_flags & X509_VP_FLAG_RESET_FLAGS)
206 dest->flags |= src->flags;
208 if (test_x509_verify_param_copy(policies, NULL))
210 if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
214 if (test_x509_verify_param_copy(host, NULL))
216 if (!X509_VERIFY_PARAM_set1_host(dest, src->host, src->hostlen))
220 if (test_x509_verify_param_copy(email, NULL))
222 if (!X509_VERIFY_PARAM_set1_email(dest, src->email, src->emaillen))
226 if (test_x509_verify_param_copy(ip, NULL))
228 if (!X509_VERIFY_PARAM_set1_ip(dest, src->ip, src->iplen))
235 int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
236 const X509_VERIFY_PARAM *from)
238 unsigned long save_flags = to->inh_flags;
240 to->inh_flags |= X509_VP_FLAG_DEFAULT;
241 ret = X509_VERIFY_PARAM_inherit(to, from);
242 to->inh_flags = save_flags;
246 static int int_x509_param_set1(unsigned char **pdest, size_t *pdestlen,
247 const unsigned char *src, size_t srclen)
254 tmp = BUF_strdup((char *)src);
255 srclen = strlen((char *)src);
258 tmp = BUF_memdup(src, srclen);
268 OPENSSL_free(*pdest);
275 int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM *param, const char *name)
278 OPENSSL_free(param->name);
279 param->name = BUF_strdup(name);
285 int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags)
287 param->flags |= flags;
288 if (flags & X509_V_FLAG_POLICY_MASK)
289 param->flags |= X509_V_FLAG_POLICY_CHECK;
293 int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param, unsigned long flags)
295 param->flags &= ~flags;
299 unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param)
304 int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)
306 return X509_PURPOSE_set(¶m->purpose, purpose);
309 int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)
311 return X509_TRUST_set(¶m->trust, trust);
314 void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
316 param->depth = depth;
319 void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t)
321 param->check_time = t;
322 param->flags |= X509_V_FLAG_USE_CHECK_TIME;
325 int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param, ASN1_OBJECT *policy)
327 if (!param->policies)
329 param->policies = sk_ASN1_OBJECT_new_null();
330 if (!param->policies)
333 if (!sk_ASN1_OBJECT_push(param->policies, policy))
338 int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
339 STACK_OF(ASN1_OBJECT) *policies)
342 ASN1_OBJECT *oid, *doid;
346 sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
350 param->policies = NULL;
354 param->policies = sk_ASN1_OBJECT_new_null();
355 if (!param->policies)
358 for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++)
360 oid = sk_ASN1_OBJECT_value(policies, i);
364 if (!sk_ASN1_OBJECT_push(param->policies, doid))
366 ASN1_OBJECT_free(doid);
370 param->flags |= X509_V_FLAG_POLICY_CHECK;
374 int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *param,
375 const unsigned char *name, size_t namelen)
377 return int_x509_param_set1(¶m->host, ¶m->hostlen,
381 int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param,
382 const unsigned char *email, size_t emaillen)
384 return int_x509_param_set1(¶m->email, ¶m->emaillen,
388 int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM *param,
389 const unsigned char *ip, size_t iplen)
391 if (iplen != 0 && iplen != 4 && iplen != 16)
393 return int_x509_param_set1(¶m->ip, ¶m->iplen, ip, iplen);
396 int X509_VERIFY_PARAM_set1_ip_asc(X509_VERIFY_PARAM *param, const char *ipasc)
398 unsigned char ipout[16];
400 iplen = a2i_ipadd(ipout, ipasc);
403 return X509_VERIFY_PARAM_set1_ip(param, ipout, (size_t)iplen);
406 int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
411 /* Default verify parameters: these are used for various
412 * applications and can be overridden by the user specified table.
413 * NB: the 'name' field *must* be in alphabetical order because it
414 * will be searched using OBJ_search.
417 static const X509_VERIFY_PARAM default_table[] = {
419 "default", /* X509 default parameters */
421 0, /* internal flags */
429 "pkcs7", /* S/MIME sign parameters */
431 0, /* internal flags */
433 X509_PURPOSE_SMIME_SIGN, /* purpose */
434 X509_TRUST_EMAIL, /* trust */
439 "smime_sign", /* S/MIME sign parameters */
441 0, /* internal flags */
443 X509_PURPOSE_SMIME_SIGN, /* purpose */
444 X509_TRUST_EMAIL, /* trust */
449 "ssl_client", /* SSL/TLS client parameters */
451 0, /* internal flags */
453 X509_PURPOSE_SSL_CLIENT, /* purpose */
454 X509_TRUST_SSL_CLIENT, /* trust */
459 "ssl_server", /* SSL/TLS server parameters */
461 0, /* internal flags */
463 X509_PURPOSE_SSL_SERVER, /* purpose */
464 X509_TRUST_SSL_SERVER, /* trust */
469 static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;
471 static int table_cmp(const X509_VERIFY_PARAM *a, const X509_VERIFY_PARAM *b)
474 return strcmp(a->name, b->name);
477 DECLARE_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM,
479 IMPLEMENT_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM,
482 static int param_cmp(const X509_VERIFY_PARAM * const *a,
483 const X509_VERIFY_PARAM * const *b)
485 return strcmp((*a)->name, (*b)->name);
488 int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
491 X509_VERIFY_PARAM *ptmp;
494 param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
500 idx = sk_X509_VERIFY_PARAM_find(param_table, param);
503 ptmp = sk_X509_VERIFY_PARAM_value(param_table, idx);
504 X509_VERIFY_PARAM_free(ptmp);
505 (void)sk_X509_VERIFY_PARAM_delete(param_table, idx);
508 if (!sk_X509_VERIFY_PARAM_push(param_table, param))
513 const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name)
516 X509_VERIFY_PARAM pm;
518 pm.name = (char *)name;
521 idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
523 return sk_X509_VERIFY_PARAM_value(param_table, idx);
525 return OBJ_bsearch_table(&pm, default_table,
526 sizeof(default_table)/sizeof(X509_VERIFY_PARAM));
529 void X509_VERIFY_PARAM_table_cleanup(void)
532 sk_X509_VERIFY_PARAM_pop_free(param_table,
533 X509_VERIFY_PARAM_free);