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>
70 /* X509_VERIFY_PARAM functions */
72 static void x509_verify_param_zero(X509_VERIFY_PARAM *param)
74 X509_VERIFY_PARAM_ID *paramid;
80 /*param->inh_flags = X509_VP_FLAG_DEFAULT;*/
86 sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
87 param->policies = NULL;
92 OPENSSL_free(paramid->host);
97 OPENSSL_free(paramid->email);
98 paramid->email = NULL;
99 paramid->emaillen = 0;
103 OPENSSL_free(paramid->ip);
110 X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
112 X509_VERIFY_PARAM *param;
113 X509_VERIFY_PARAM_ID *paramid;
114 param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
117 paramid = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
123 memset(param, 0, sizeof(X509_VERIFY_PARAM));
124 memset(paramid, 0, sizeof(X509_VERIFY_PARAM_ID));
126 x509_verify_param_zero(param);
130 void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
132 x509_verify_param_zero(param);
133 OPENSSL_free(param->id);
137 /* This function determines how parameters are "inherited" from one structure
138 * to another. There are several different ways this can happen.
140 * 1. If a child structure needs to have its values initialized from a parent
141 * they are simply copied across. For example SSL_CTX copied to SSL.
142 * 2. If the structure should take on values only if they are currently unset.
143 * For example the values in an SSL structure will take appropriate value
144 * for SSL servers or clients but only if the application has not set new
147 * The "inh_flags" field determines how this function behaves.
149 * Normally any values which are set in the default are not copied from the
150 * destination and verify flags are ORed together.
152 * If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
153 * to the destination. Effectively the values in "to" become default values
154 * which will be used only if nothing new is set in "from".
156 * If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
157 * they are set or not. Flags is still Ored though.
159 * If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
162 * If X509_VP_FLAG_LOCKED is set then no values are copied.
164 * If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
165 * after the next call.
168 /* Macro to test if a field should be copied from src to dest */
170 #define test_x509_verify_param_copy(field, def) \
172 ((src->field != def) && (to_default || (dest->field == def))))
174 /* As above but for ID fields */
176 #define test_x509_verify_param_copy_id(idf, def) \
177 test_x509_verify_param_copy(id->idf, def)
179 /* Macro to test and copy a field if necessary */
181 #define x509_verify_param_copy(field, def) \
182 if (test_x509_verify_param_copy(field, def)) \
183 dest->field = src->field
186 int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
187 const X509_VERIFY_PARAM *src)
189 unsigned long inh_flags;
190 int to_default, to_overwrite;
191 X509_VERIFY_PARAM_ID *id;
195 inh_flags = dest->inh_flags | src->inh_flags;
197 if (inh_flags & X509_VP_FLAG_ONCE)
200 if (inh_flags & X509_VP_FLAG_LOCKED)
203 if (inh_flags & X509_VP_FLAG_DEFAULT)
208 if (inh_flags & X509_VP_FLAG_OVERWRITE)
213 x509_verify_param_copy(purpose, 0);
214 x509_verify_param_copy(trust, 0);
215 x509_verify_param_copy(depth, -1);
217 /* If overwrite or check time not set, copy across */
219 if (to_overwrite || !(dest->flags & X509_V_FLAG_USE_CHECK_TIME))
221 dest->check_time = src->check_time;
222 dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
223 /* Don't need to copy flag: that is done below */
226 if (inh_flags & X509_VP_FLAG_RESET_FLAGS)
229 dest->flags |= src->flags;
231 if (test_x509_verify_param_copy(policies, NULL))
233 if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
237 if (test_x509_verify_param_copy_id(host, NULL))
239 if (!X509_VERIFY_PARAM_set1_host(dest, id->host, 0))
241 dest->id->hostflags = id->hostflags;
244 if (test_x509_verify_param_copy_id(email, NULL))
246 if (!X509_VERIFY_PARAM_set1_email(dest, id->email, id->emaillen))
250 if (test_x509_verify_param_copy_id(ip, NULL))
252 if (!X509_VERIFY_PARAM_set1_ip(dest, id->ip, id->iplen))
259 int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
260 const X509_VERIFY_PARAM *from)
262 unsigned long save_flags = to->inh_flags;
264 to->inh_flags |= X509_VP_FLAG_DEFAULT;
265 ret = X509_VERIFY_PARAM_inherit(to, from);
266 to->inh_flags = save_flags;
270 static int int_x509_param_set1(unsigned char **pdest, size_t *pdestlen,
271 const unsigned char *src, size_t srclen)
278 tmp = BUF_strdup((char *)src);
279 srclen = strlen((char *)src);
282 tmp = BUF_memdup(src, srclen);
292 OPENSSL_free(*pdest);
299 int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM *param, const char *name)
302 OPENSSL_free(param->name);
303 param->name = BUF_strdup(name);
309 int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags)
311 param->flags |= flags;
312 if (flags & X509_V_FLAG_POLICY_MASK)
313 param->flags |= X509_V_FLAG_POLICY_CHECK;
317 int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param, unsigned long flags)
319 param->flags &= ~flags;
323 unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param)
328 int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)
330 return X509_PURPOSE_set(¶m->purpose, purpose);
333 int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)
335 return X509_TRUST_set(¶m->trust, trust);
338 void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
340 param->depth = depth;
343 void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t)
345 param->check_time = t;
346 param->flags |= X509_V_FLAG_USE_CHECK_TIME;
349 int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param, ASN1_OBJECT *policy)
351 if (!param->policies)
353 param->policies = sk_ASN1_OBJECT_new_null();
354 if (!param->policies)
357 if (!sk_ASN1_OBJECT_push(param->policies, policy))
362 int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
363 STACK_OF(ASN1_OBJECT) *policies)
366 ASN1_OBJECT *oid, *doid;
370 sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
374 param->policies = NULL;
378 param->policies = sk_ASN1_OBJECT_new_null();
379 if (!param->policies)
382 for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++)
384 oid = sk_ASN1_OBJECT_value(policies, i);
388 if (!sk_ASN1_OBJECT_push(param->policies, doid))
390 ASN1_OBJECT_free(doid);
394 param->flags |= X509_V_FLAG_POLICY_CHECK;
398 int X509_VERIFY_PARAM_set1_host(X509_VERIFY_PARAM *param,
399 const unsigned char *name, size_t namelen)
401 return int_x509_param_set1(¶m->id->host, NULL, name, namelen);
404 void X509_VERIFY_PARAM_set_hostflags(X509_VERIFY_PARAM *param,
407 param->id->hostflags = flags;
410 int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param,
411 const unsigned char *email, size_t emaillen)
413 return int_x509_param_set1(¶m->id->email, ¶m->id->emaillen,
417 int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM *param,
418 const unsigned char *ip, size_t iplen)
420 if (iplen != 0 && iplen != 4 && iplen != 16)
422 return int_x509_param_set1(¶m->id->ip, ¶m->id->iplen, ip, iplen);
425 int X509_VERIFY_PARAM_set1_ip_asc(X509_VERIFY_PARAM *param, const char *ipasc)
427 unsigned char ipout[16];
429 iplen = a2i_ipadd(ipout, ipasc);
432 return X509_VERIFY_PARAM_set1_ip(param, ipout, (size_t)iplen);
435 int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
440 const char *X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM *param)
445 static X509_VERIFY_PARAM_ID _empty_id = {NULL, 0U, NULL, 0, NULL, 0};
447 #define vpm_empty_id (X509_VERIFY_PARAM_ID *)&_empty_id
450 /* Default verify parameters: these are used for various
451 * applications and can be overridden by the user specified table.
452 * NB: the 'name' field *must* be in alphabetical order because it
453 * will be searched using OBJ_search.
456 static const X509_VERIFY_PARAM default_table[] = {
458 "default", /* X509 default parameters */
460 0, /* internal flags */
469 "pkcs7", /* S/MIME sign parameters */
471 0, /* internal flags */
473 X509_PURPOSE_SMIME_SIGN, /* purpose */
474 X509_TRUST_EMAIL, /* trust */
480 "smime_sign", /* S/MIME sign parameters */
482 0, /* internal flags */
484 X509_PURPOSE_SMIME_SIGN, /* purpose */
485 X509_TRUST_EMAIL, /* trust */
491 "ssl_client", /* SSL/TLS client parameters */
493 0, /* internal flags */
495 X509_PURPOSE_SSL_CLIENT, /* purpose */
496 X509_TRUST_SSL_CLIENT, /* trust */
502 "ssl_server", /* SSL/TLS server parameters */
504 0, /* internal flags */
506 X509_PURPOSE_SSL_SERVER, /* purpose */
507 X509_TRUST_SSL_SERVER, /* trust */
513 static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;
515 static int table_cmp(const X509_VERIFY_PARAM *a, const X509_VERIFY_PARAM *b)
518 return strcmp(a->name, b->name);
521 DECLARE_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM,
523 IMPLEMENT_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM,
526 static int param_cmp(const X509_VERIFY_PARAM * const *a,
527 const X509_VERIFY_PARAM * const *b)
529 return strcmp((*a)->name, (*b)->name);
532 int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
535 X509_VERIFY_PARAM *ptmp;
538 param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
544 idx = sk_X509_VERIFY_PARAM_find(param_table, param);
547 ptmp = sk_X509_VERIFY_PARAM_value(param_table, idx);
548 X509_VERIFY_PARAM_free(ptmp);
549 (void)sk_X509_VERIFY_PARAM_delete(param_table, idx);
552 if (!sk_X509_VERIFY_PARAM_push(param_table, param))
557 int X509_VERIFY_PARAM_get_count(void)
559 int num = sizeof(default_table)/sizeof(X509_VERIFY_PARAM);
561 num += sk_X509_VERIFY_PARAM_num(param_table);
565 const X509_VERIFY_PARAM *X509_VERIFY_PARAM_get0(int id)
567 int num = sizeof(default_table)/sizeof(X509_VERIFY_PARAM);
569 return default_table + id;
570 return sk_X509_VERIFY_PARAM_value(param_table, id - num);
573 const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name)
576 X509_VERIFY_PARAM pm;
578 pm.name = (char *)name;
581 idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
583 return sk_X509_VERIFY_PARAM_value(param_table, idx);
585 return OBJ_bsearch_table(&pm, default_table,
586 sizeof(default_table)/sizeof(X509_VERIFY_PARAM));
589 void X509_VERIFY_PARAM_table_cleanup(void)
592 sk_X509_VERIFY_PARAM_pop_free(param_table,
593 X509_VERIFY_PARAM_free);