crypto/x509/x_x509a.c

   1 /* a_x509a.c */
   2 /*
   3  * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project
   4  * 1999.
   5  */
   6 /* ====================================================================
   7  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   8  *
   9  * Redistribution and use in source and binary forms, with or without
  10  * modification, are permitted provided that the following conditions
  11  * are met:
  12  *
  13  * 1. Redistributions of source code must retain the above copyright
  14  *    notice, this list of conditions and the following disclaimer.
  15  *
  16  * 2. Redistributions in binary form must reproduce the above copyright
  17  *    notice, this list of conditions and the following disclaimer in
  18  *    the documentation and/or other materials provided with the
  19  *    distribution.
  20  *
  21  * 3. All advertising materials mentioning features or use of this
  22  *    software must display the following acknowledgment:
  23  *    "This product includes software developed by the OpenSSL Project
  24  *    for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
  25  *
  26  * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
  27  *    endorse or promote products derived from this software without
  28  *    prior written permission. For written permission, please contact
  29  *    licensing@OpenSSL.org.
  30  *
  31  * 5. Products derived from this software may not be called "OpenSSL"
  32  *    nor may "OpenSSL" appear in their names without prior written
  33  *    permission of the OpenSSL Project.
  34  *
  35  * 6. Redistributions of any form whatsoever must retain the following
  36  *    acknowledgment:
  37  *    "This product includes software developed by the OpenSSL Project
  38  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  39  *
  40  * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
  41  * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  42  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
  43  * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE OpenSSL PROJECT OR
  44  * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  45  * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
  46  * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  47  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  48  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
  49  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  50  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
  51  * OF THE POSSIBILITY OF SUCH DAMAGE.
  52  * ====================================================================
  53  *
  54  * This product includes cryptographic software written by Eric Young
  55  * (eay@cryptsoft.com).  This product includes software written by Tim
  56  * Hudson (tjh@cryptsoft.com).
  57  *
  58  */
  59
  60 #include <stdio.h>
  61 #include "internal/cryptlib.h"
  62 #include <openssl/evp.h>
  63 #include <openssl/asn1t.h>
  64 #include <openssl/x509.h>
  65 #include "internal/x509_int.h"
  66
  67 /*
  68  * X509_CERT_AUX routines. These are used to encode additional user
  69  * modifiable data about a certificate. This data is appended to the X509
  70  * encoding when the *_X509_AUX routines are used. This means that the
  71  * "traditional" X509 routines will simply ignore the extra data.
  72  */
  73
  74 static X509_CERT_AUX *aux_get(X509 *x);
  75
  76 ASN1_SEQUENCE(X509_CERT_AUX) = {
  77         ASN1_SEQUENCE_OF_OPT(X509_CERT_AUX, trust, ASN1_OBJECT),
  78         ASN1_IMP_SEQUENCE_OF_OPT(X509_CERT_AUX, reject, ASN1_OBJECT, 0),
  79         ASN1_OPT(X509_CERT_AUX, alias, ASN1_UTF8STRING),
  80         ASN1_OPT(X509_CERT_AUX, keyid, ASN1_OCTET_STRING),
  81         ASN1_IMP_SEQUENCE_OF_OPT(X509_CERT_AUX, other, X509_ALGOR, 1)
  82 } ASN1_SEQUENCE_END(X509_CERT_AUX)
  83
  84 IMPLEMENT_ASN1_FUNCTIONS(X509_CERT_AUX)
  85
  86 int X509_trusted(const X509 *x)
  87 {
  88     return x->aux ? 1 : 0;
  89 }
  90
  91 static X509_CERT_AUX *aux_get(X509 *x)
  92 {
  93     if (x == NULL)
  94         return NULL;
  95     if (x->aux == NULL && (x->aux = X509_CERT_AUX_new()) == NULL)
  96         return NULL;
  97     return x->aux;
  98 }
  99
 100 int X509_alias_set1(X509 *x, unsigned char *name, int len)
 101 {
 102     X509_CERT_AUX *aux;
 103     if (!name) {
 104         if (!x || !x->aux || !x->aux->alias)
 105             return 1;
 106         ASN1_UTF8STRING_free(x->aux->alias);
 107         x->aux->alias = NULL;
 108         return 1;
 109     }
 110     if ((aux = aux_get(x)) == NULL)
 111         return 0;
 112     if (aux->alias == NULL && (aux->alias = ASN1_UTF8STRING_new()) == NULL)
 113         return 0;
 114     return ASN1_STRING_set(aux->alias, name, len);
 115 }
 116
 117 int X509_keyid_set1(X509 *x, unsigned char *id, int len)
 118 {
 119     X509_CERT_AUX *aux;
 120     if (!id) {
 121         if (!x || !x->aux || !x->aux->keyid)
 122             return 1;
 123         ASN1_OCTET_STRING_free(x->aux->keyid);
 124         x->aux->keyid = NULL;
 125         return 1;
 126     }
 127     if ((aux = aux_get(x)) == NULL)
 128         return 0;
 129     if (aux->keyid ==NULL
 130         && (aux->keyid = ASN1_OCTET_STRING_new()) == NULL)
 131         return 0;
 132     return ASN1_STRING_set(aux->keyid, id, len);
 133 }
 134
 135 unsigned char *X509_alias_get0(X509 *x, int *len)
 136 {
 137     if (!x->aux || !x->aux->alias)
 138         return NULL;
 139     if (len)
 140         *len = x->aux->alias->length;
 141     return x->aux->alias->data;
 142 }
 143
 144 unsigned char *X509_keyid_get0(X509 *x, int *len)
 145 {
 146     if (!x->aux || !x->aux->keyid)
 147         return NULL;
 148     if (len)
 149         *len = x->aux->keyid->length;
 150     return x->aux->keyid->data;
 151 }
 152
 153 int X509_add1_trust_object(X509 *x, ASN1_OBJECT *obj)
 154 {
 155     X509_CERT_AUX *aux;
 156     ASN1_OBJECT *objtmp = NULL;
 157     if (obj) {
 158         objtmp = OBJ_dup(obj);
 159         if (!objtmp)
 160             return 0;
 161     }
 162     if ((aux = aux_get(x)) == NULL)
 163         goto err;
 164     if (aux->trust == NULL
 165         && (aux->trust = sk_ASN1_OBJECT_new_null()) == NULL)
 166         goto err;
 167     if (!objtmp || sk_ASN1_OBJECT_push(aux->trust, objtmp))
 168         return 1;
 169  err:
 170     ASN1_OBJECT_free(objtmp);
 171     return 0;
 172 }
 173
 174 int X509_add1_reject_object(X509 *x, ASN1_OBJECT *obj)
 175 {
 176     X509_CERT_AUX *aux;
 177     ASN1_OBJECT *objtmp;
 178     if ((objtmp = OBJ_dup(obj)) == NULL)
 179         return 0;
 180     if ((aux = aux_get(x)) == NULL)
 181         goto err;
 182     if (aux->reject == NULL
 183         && (aux->reject = sk_ASN1_OBJECT_new_null()) == NULL)
 184         goto err;
 185     return sk_ASN1_OBJECT_push(aux->reject, objtmp);
 186  err:
 187     ASN1_OBJECT_free(objtmp);
 188     return 0;
 189 }
 190
 191 void X509_trust_clear(X509 *x)
 192 {
 193     if (x->aux) {
 194         sk_ASN1_OBJECT_pop_free(x->aux->trust, ASN1_OBJECT_free);
 195         x->aux->trust = NULL;
 196     }
 197 }
 198
 199 void X509_reject_clear(X509 *x)
 200 {
 201     if (x->aux) {
 202         sk_ASN1_OBJECT_pop_free(x->aux->reject, ASN1_OBJECT_free);
 203         x->aux->reject = NULL;
 204     }
 205 }
 206
 207 STACK_OF(ASN1_OBJECT) *X509_get0_trust_objects(X509 *x)
 208 {
 209     if (x->aux != NULL)
 210         return x->aux->trust;
 211     return NULL;
 212 }
 213
 214 STACK_OF(ASN1_OBJECT) *X509_get0_reject_objects(X509 *x)
 215 {
 216     if (x->aux != NULL)
 217         return x->aux->reject;
 218     return NULL;
 219 }