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);
98 OPENSSL_free(paramid->email);
99 paramid->email = NULL;
100 paramid->emaillen = 0;
104 OPENSSL_free(paramid->ip);
111 X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
113 X509_VERIFY_PARAM *param;
114 X509_VERIFY_PARAM_ID *paramid;
115 param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
118 paramid = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
124 memset(param, 0, sizeof(X509_VERIFY_PARAM));
125 memset(paramid, 0, sizeof(X509_VERIFY_PARAM_ID));
127 x509_verify_param_zero(param);
131 void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
133 x509_verify_param_zero(param);
134 OPENSSL_free(param->id);
138 /* This function determines how parameters are "inherited" from one structure
139 * to another. There are several different ways this can happen.
141 * 1. If a child structure needs to have its values initialized from a parent
142 * they are simply copied across. For example SSL_CTX copied to SSL.
143 * 2. If the structure should take on values only if they are currently unset.
144 * For example the values in an SSL structure will take appropriate value
145 * for SSL servers or clients but only if the application has not set new
148 * The "inh_flags" field determines how this function behaves.
150 * Normally any values which are set in the default are not copied from the
151 * destination and verify flags are ORed together.
153 * If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
154 * to the destination. Effectively the values in "to" become default values
155 * which will be used only if nothing new is set in "from".
157 * If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
158 * they are set or not. Flags is still Ored though.
160 * If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
163 * If X509_VP_FLAG_LOCKED is set then no values are copied.
165 * If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
166 * after the next call.
169 /* Macro to test if a field should be copied from src to dest */
171 #define test_x509_verify_param_copy(field, def) \
173 ((src->field != def) && (to_default || (dest->field == def))))
175 /* As above but for ID fields */
177 #define test_x509_verify_param_copy_id(idf, def) \
178 test_x509_verify_param_copy(id->idf, def)
180 /* Macro to test and copy a field if necessary */
182 #define x509_verify_param_copy(field, def) \
183 if (test_x509_verify_param_copy(field, def)) \
184 dest->field = src->field
187 int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
188 const X509_VERIFY_PARAM *src)
190 unsigned long inh_flags;
191 int to_default, to_overwrite;
192 X509_VERIFY_PARAM_ID *id;
196 inh_flags = dest->inh_flags | src->inh_flags;
198 if (inh_flags & X509_VP_FLAG_ONCE)
201 if (inh_flags & X509_VP_FLAG_LOCKED)
204 if (inh_flags & X509_VP_FLAG_DEFAULT)
209 if (inh_flags & X509_VP_FLAG_OVERWRITE)
214 x509_verify_param_copy(purpose, 0);
215 x509_verify_param_copy(trust, 0);
216 x509_verify_param_copy(depth, -1);
218 /* If overwrite or check time not set, copy across */
220 if (to_overwrite || !(dest->flags & X509_V_FLAG_USE_CHECK_TIME))
222 dest->check_time = src->check_time;
223 dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
224 /* Don't need to copy flag: that is done below */
227 if (inh_flags & X509_VP_FLAG_RESET_FLAGS)
230 dest->flags |= src->flags;
232 if (test_x509_verify_param_copy(policies, NULL))
234 if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
238 if (test_x509_verify_param_copy_id(host, NULL))
240 if (!X509_VERIFY_PARAM_set1_host(dest, id->host, id->hostlen))
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, ¶m->id->hostlen,
405 int X509_VERIFY_PARAM_set1_email(X509_VERIFY_PARAM *param,
406 const unsigned char *email, size_t emaillen)
408 return int_x509_param_set1(¶m->id->email, ¶m->id->emaillen,
412 int X509_VERIFY_PARAM_set1_ip(X509_VERIFY_PARAM *param,
413 const unsigned char *ip, size_t iplen)
415 if (iplen != 0 && iplen != 4 && iplen != 16)
417 return int_x509_param_set1(¶m->id->ip, ¶m->id->iplen, ip, iplen);
420 int X509_VERIFY_PARAM_set1_ip_asc(X509_VERIFY_PARAM *param, const char *ipasc)
422 unsigned char ipout[16];
424 iplen = a2i_ipadd(ipout, ipasc);
427 return X509_VERIFY_PARAM_set1_ip(param, ipout, (size_t)iplen);
430 int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
435 const char *X509_VERIFY_PARAM_get0_name(const X509_VERIFY_PARAM *param)
440 static X509_VERIFY_PARAM_ID _empty_id = {NULL, 0, NULL, 0, NULL, 0};
442 #define vpm_empty_id (X509_VERIFY_PARAM_ID *)&_empty_id
444 /* Default verify parameters: these are used for various
445 * applications and can be overridden by the user specified table.
446 * NB: the 'name' field *must* be in alphabetical order because it
447 * will be searched using OBJ_search.
450 static const X509_VERIFY_PARAM default_table[] = {
452 "default", /* X509 default parameters */
454 0, /* internal flags */
463 "pkcs7", /* S/MIME sign parameters */
465 0, /* internal flags */
467 X509_PURPOSE_SMIME_SIGN, /* purpose */
468 X509_TRUST_EMAIL, /* trust */
474 "smime_sign", /* S/MIME sign parameters */
476 0, /* internal flags */
478 X509_PURPOSE_SMIME_SIGN, /* purpose */
479 X509_TRUST_EMAIL, /* trust */
485 "ssl_client", /* SSL/TLS client parameters */
487 0, /* internal flags */
489 X509_PURPOSE_SSL_CLIENT, /* purpose */
490 X509_TRUST_SSL_CLIENT, /* trust */
496 "ssl_server", /* SSL/TLS server parameters */
498 0, /* internal flags */
500 X509_PURPOSE_SSL_SERVER, /* purpose */
501 X509_TRUST_SSL_SERVER, /* trust */
507 static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;
509 static int table_cmp(const X509_VERIFY_PARAM *a, const X509_VERIFY_PARAM *b)
512 return strcmp(a->name, b->name);
515 DECLARE_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM,
517 IMPLEMENT_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM,
520 static int param_cmp(const X509_VERIFY_PARAM * const *a,
521 const X509_VERIFY_PARAM * const *b)
523 return strcmp((*a)->name, (*b)->name);
526 int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
529 X509_VERIFY_PARAM *ptmp;
532 param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
538 idx = sk_X509_VERIFY_PARAM_find(param_table, param);
541 ptmp = sk_X509_VERIFY_PARAM_value(param_table, idx);
542 X509_VERIFY_PARAM_free(ptmp);
543 (void)sk_X509_VERIFY_PARAM_delete(param_table, idx);
546 if (!sk_X509_VERIFY_PARAM_push(param_table, param))
551 int X509_VERIFY_PARAM_get_count(void)
553 int num = sizeof(default_table)/sizeof(X509_VERIFY_PARAM);
555 num += sk_X509_VERIFY_PARAM_num(param_table);
559 const X509_VERIFY_PARAM *X509_VERIFY_PARAM_get0(int id)
561 int num = sizeof(default_table)/sizeof(X509_VERIFY_PARAM);
563 return default_table + id;
564 return sk_X509_VERIFY_PARAM_value(param_table, id - num);
567 const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name)
570 X509_VERIFY_PARAM pm;
572 pm.name = (char *)name;
575 idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
577 return sk_X509_VERIFY_PARAM_value(param_table, idx);
579 return OBJ_bsearch_table(&pm, default_table,
580 sizeof(default_table)/sizeof(X509_VERIFY_PARAM));
583 void X509_VERIFY_PARAM_table_cleanup(void)
586 sk_X509_VERIFY_PARAM_pop_free(param_table,
587 X509_VERIFY_PARAM_free);