crypto/x509v3/v3_bcons.c

   1 /* v3_bcons.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 "cryptlib.h"
  62 #include <openssl/asn1.h>
  63 #include <openssl/asn1t.h>
  64 #include <openssl/conf.h>
  65 #include <openssl/x509v3.h>
  66
  67 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
  68                                                    BASIC_CONSTRAINTS *bcons,
  69                                                    STACK_OF(CONF_VALUE)
  70                                                    *extlist);
  71 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
  72                                                 X509V3_CTX *ctx,
  73                                                 STACK_OF(CONF_VALUE) *values);
  74
  75 const X509V3_EXT_METHOD v3_bcons = {
  76     NID_basic_constraints, 0,
  77     ASN1_ITEM_ref(BASIC_CONSTRAINTS),
  78     0, 0, 0, 0,
  79     0, 0,
  80     (X509V3_EXT_I2V) i2v_BASIC_CONSTRAINTS,
  81     (X509V3_EXT_V2I)v2i_BASIC_CONSTRAINTS,
  82     NULL, NULL,
  83     NULL
  84 };
  85
  86 ASN1_SEQUENCE(BASIC_CONSTRAINTS) = {
  87         ASN1_OPT(BASIC_CONSTRAINTS, ca, ASN1_FBOOLEAN),
  88         ASN1_OPT(BASIC_CONSTRAINTS, pathlen, ASN1_INTEGER)
  89 } ASN1_SEQUENCE_END(BASIC_CONSTRAINTS)
  90
  91 IMPLEMENT_ASN1_FUNCTIONS(BASIC_CONSTRAINTS)
  92
  93 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
  94                                                    BASIC_CONSTRAINTS *bcons,
  95                                                    STACK_OF(CONF_VALUE)
  96                                                    *extlist)
  97 {
  98     X509V3_add_value_bool("CA", bcons->ca, &extlist);
  99     X509V3_add_value_int("pathlen", bcons->pathlen, &extlist);
 100     return extlist;
 101 }
 102
 103 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
 104                                                 X509V3_CTX *ctx,
 105                                                 STACK_OF(CONF_VALUE) *values)
 106 {
 107     BASIC_CONSTRAINTS *bcons = NULL;
 108     CONF_VALUE *val;
 109     int i;
 110     if (!(bcons = BASIC_CONSTRAINTS_new())) {
 111         X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, ERR_R_MALLOC_FAILURE);
 112         return NULL;
 113     }
 114     for (i = 0; i < sk_CONF_VALUE_num(values); i++) {
 115         val = sk_CONF_VALUE_value(values, i);
 116         if (!strcmp(val->name, "CA")) {
 117             if (!X509V3_get_value_bool(val, &bcons->ca))
 118                 goto err;
 119         } else if (!strcmp(val->name, "pathlen")) {
 120             if (!X509V3_get_value_int(val, &bcons->pathlen))
 121                 goto err;
 122         } else {
 123             X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, X509V3_R_INVALID_NAME);
 124             X509V3_conf_err(val);
 125             goto err;
 126         }
 127     }
 128     return bcons;
 129  err:
 130     BASIC_CONSTRAINTS_free(bcons);
 131     return NULL;
 132 }