crypto/x509v3/v3_bcons.c

   1 /* v3_bcons.c */
   2 /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
   3  * project 1999.
   4  */
   5 /* ====================================================================
   6  * Copyright (c) 1999 The OpenSSL Project.  All rights reserved.
   7  *
   8  * Redistribution and use in source and binary forms, with or without
   9  * modification, are permitted provided that the following conditions
  10  * are met:
  11  *
  12  * 1. Redistributions of source code must retain the above copyright
  13  *    notice, this list of conditions and the following disclaimer.
  14  *
  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
  18  *    distribution.
  19  *
  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/)"
  24  *
  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.
  29  *
  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.
  33  *
  34  * 6. Redistributions of any form whatsoever must retain the following
  35  *    acknowledgment:
  36  *    "This product includes software developed by the OpenSSL Project
  37  *    for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
  38  *
  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  * ====================================================================
  52  *
  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).
  56  *
  57  */
  58
  59
  60 #include <stdio.h>
  61 #include "cryptlib.h"
  62 #include <openssl/asn1.h>
  63 #include <openssl/asn1_mac.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, BASIC_CONSTRAINTS *bcons, STACK_OF(CONF_VALUE) *extlist);
  68 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values);
  69
  70 X509V3_EXT_METHOD v3_bcons = {
  71 NID_basic_constraints, 0,
  72 (X509V3_EXT_NEW)BASIC_CONSTRAINTS_new,
  73 (X509V3_EXT_FREE)BASIC_CONSTRAINTS_free,
  74 (X509V3_EXT_D2I)d2i_BASIC_CONSTRAINTS,
  75 (X509V3_EXT_I2D)i2d_BASIC_CONSTRAINTS,
  76 NULL, NULL,
  77 (X509V3_EXT_I2V)i2v_BASIC_CONSTRAINTS,
  78 (X509V3_EXT_V2I)v2i_BASIC_CONSTRAINTS,
  79 NULL,NULL,
  80 NULL
  81 };
  82
  83
  84 int i2d_BASIC_CONSTRAINTS(BASIC_CONSTRAINTS *a, unsigned char **pp)
  85 {
  86         M_ASN1_I2D_vars(a);
  87         if(a->ca) M_ASN1_I2D_len (a->ca, i2d_ASN1_BOOLEAN);
  88         M_ASN1_I2D_len (a->pathlen, i2d_ASN1_INTEGER);
  89
  90         M_ASN1_I2D_seq_total();
  91
  92         if (a->ca) M_ASN1_I2D_put (a->ca, i2d_ASN1_BOOLEAN);
  93         M_ASN1_I2D_put (a->pathlen, i2d_ASN1_INTEGER);
  94         M_ASN1_I2D_finish();
  95 }
  96
  97 BASIC_CONSTRAINTS *BASIC_CONSTRAINTS_new(void)
  98 {
  99         BASIC_CONSTRAINTS *ret=NULL;
 100         ASN1_CTX c;
 101         M_ASN1_New_Malloc(ret, BASIC_CONSTRAINTS);
 102         ret->ca = 0;
 103         ret->pathlen = NULL;
 104         return (ret);
 105         M_ASN1_New_Error(ASN1_F_BASIC_CONSTRAINTS_NEW);
 106 }
 107
 108 BASIC_CONSTRAINTS *d2i_BASIC_CONSTRAINTS(BASIC_CONSTRAINTS **a,
 109              unsigned char **pp, long length)
 110 {
 111         M_ASN1_D2I_vars(a,BASIC_CONSTRAINTS *,BASIC_CONSTRAINTS_new);
 112         M_ASN1_D2I_Init();
 113         M_ASN1_D2I_start_sequence();
 114         if((M_ASN1_next & (~V_ASN1_CONSTRUCTED)) ==
 115                  (V_ASN1_UNIVERSAL|V_ASN1_BOOLEAN) ) {
 116                         M_ASN1_D2I_get_int (ret->ca, d2i_ASN1_BOOLEAN);
 117         }
 118         M_ASN1_D2I_get_opt (ret->pathlen, d2i_ASN1_INTEGER, V_ASN1_INTEGER);
 119         M_ASN1_D2I_Finish(a, BASIC_CONSTRAINTS_free, ASN1_F_D2I_BASIC_CONSTRAINTS);
 120 }
 121
 122 void BASIC_CONSTRAINTS_free(BASIC_CONSTRAINTS *a)
 123 {
 124         if (a == NULL) return;
 125         M_ASN1_INTEGER_free (a->pathlen);
 126         Free (a);
 127 }
 128
 129 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
 130              BASIC_CONSTRAINTS *bcons, STACK_OF(CONF_VALUE) *extlist)
 131 {
 132         X509V3_add_value_bool("CA", bcons->ca, &extlist);
 133         X509V3_add_value_int("pathlen", bcons->pathlen, &extlist);
 134         return extlist;
 135 }
 136
 137 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
 138              X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values)
 139 {
 140         BASIC_CONSTRAINTS *bcons=NULL;
 141         CONF_VALUE *val;
 142         int i;
 143         if(!(bcons = BASIC_CONSTRAINTS_new())) {
 144                 X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, ERR_R_MALLOC_FAILURE);
 145                 return NULL;
 146         }
 147         for(i = 0; i < sk_CONF_VALUE_num(values); i++) {
 148                 val = sk_CONF_VALUE_value(values, i);
 149                 if(!strcmp(val->name, "CA")) {
 150                         if(!X509V3_get_value_bool(val, &bcons->ca)) goto err;
 151                 } else if(!strcmp(val->name, "pathlen")) {
 152                         if(!X509V3_get_value_int(val, &bcons->pathlen)) goto err;
 153                 } else {
 154                         X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, X509V3_R_INVALID_NAME);
 155                         X509V3_conf_err(val);
 156                         goto err;
 157                 }
 158         }
 159         return bcons;
 160         err:
 161         BASIC_CONSTRAINTS_free(bcons);
 162         return NULL;
 163 }
 164