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 "asn1.h"
  63 #include "asn1_mac.h"
  64 #include "conf.h"
  65 #include "x509v3.h"
  66
  67 #ifndef NOPROTO
  68 static STACK *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, BASIC_CONSTRAINTS *bcons, STACK *extlist);
  69 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK *values);
  70
  71 #else
  72
  73 static STACK *i2v_BASIC_CONSTRAINTS();
  74 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS();
  75
  76 #endif
  77
  78 X509V3_EXT_METHOD v3_bcons = {
  79 NID_basic_constraints, 0,
  80 (X509V3_EXT_NEW)BASIC_CONSTRAINTS_new,
  81 BASIC_CONSTRAINTS_free,
  82 (X509V3_EXT_D2I)d2i_BASIC_CONSTRAINTS,
  83 i2d_BASIC_CONSTRAINTS,
  84 NULL, NULL,
  85 (X509V3_EXT_I2V)i2v_BASIC_CONSTRAINTS,
  86 (X509V3_EXT_V2I)v2i_BASIC_CONSTRAINTS,
  87 NULL,NULL,
  88 NULL
  89 };
  90
  91
  92 /*
  93  * ASN1err(ASN1_F_BASIC_CONSTRAINTS_NEW,ERR_R_MALLOC_FAILURE);
  94  * ASN1err(ASN1_F_D2I_BASIC_CONSTRAINTS,ERR_R_MALLOC_FAILURE);
  95  */
  96
  97 int i2d_BASIC_CONSTRAINTS(BASIC_CONSTRAINTS *a, unsigned char **pp)
  98 {
  99         M_ASN1_I2D_vars(a);
 100         if(a->ca) M_ASN1_I2D_len (a->ca, i2d_ASN1_BOOLEAN);
 101         M_ASN1_I2D_len (a->pathlen, i2d_ASN1_INTEGER);
 102
 103         M_ASN1_I2D_seq_total();
 104
 105         if (a->ca) M_ASN1_I2D_put (a->ca, i2d_ASN1_BOOLEAN);
 106         M_ASN1_I2D_put (a->pathlen, i2d_ASN1_INTEGER);
 107         M_ASN1_I2D_finish();
 108 }
 109
 110 BASIC_CONSTRAINTS *BASIC_CONSTRAINTS_new(void)
 111 {
 112         BASIC_CONSTRAINTS *ret=NULL;
 113         ASN1_CTX c;
 114         M_ASN1_New_Malloc(ret, BASIC_CONSTRAINTS);
 115         ret->ca = 0;
 116         ret->pathlen = NULL;
 117         return (ret);
 118         M_ASN1_New_Error(ASN1_F_BASIC_CONSTRAINTS_NEW);
 119 }
 120
 121 BASIC_CONSTRAINTS *d2i_BASIC_CONSTRAINTS(BASIC_CONSTRAINTS **a,
 122              unsigned char **pp, long length)
 123 {
 124         M_ASN1_D2I_vars(a,BASIC_CONSTRAINTS *,BASIC_CONSTRAINTS_new);
 125         M_ASN1_D2I_Init();
 126         M_ASN1_D2I_start_sequence();
 127         if((M_ASN1_next & (~V_ASN1_CONSTRUCTED)) ==
 128                  (V_ASN1_UNIVERSAL|V_ASN1_BOOLEAN) ) {
 129                         M_ASN1_D2I_get_int (ret->ca, d2i_ASN1_BOOLEAN);
 130         }
 131         M_ASN1_D2I_get_opt (ret->pathlen, d2i_ASN1_INTEGER, V_ASN1_INTEGER);
 132         M_ASN1_D2I_Finish(a, BASIC_CONSTRAINTS_free, ASN1_F_D2I_BASIC_CONSTRAINTS);
 133 }
 134
 135 void BASIC_CONSTRAINTS_free(BASIC_CONSTRAINTS *a)
 136 {
 137         if (a == NULL) return;
 138         ASN1_INTEGER_free (a->pathlen);
 139         Free ((char *)a);
 140 }
 141
 142 static STACK *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
 143              BASIC_CONSTRAINTS *bcons, STACK *extlist)
 144 {
 145         X509V3_add_value_bool("CA", bcons->ca, &extlist);
 146         X509V3_add_value_int("pathlen", bcons->pathlen, &extlist);
 147         return extlist;
 148 }
 149
 150 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method,
 151              X509V3_CTX *ctx, STACK *values)
 152 {
 153         BASIC_CONSTRAINTS *bcons=NULL;
 154         CONF_VALUE *val;
 155         int i;
 156         if(!(bcons = BASIC_CONSTRAINTS_new())) {
 157                 X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, ERR_R_MALLOC_FAILURE);
 158                 return NULL;
 159         }
 160         for(i = 0; i < sk_num(values); i++) {
 161                 val = (CONF_VALUE *)sk_value(values, i);
 162                 if(!strcmp(val->name, "CA")) {
 163                         if(!X509V3_get_value_bool(val, &bcons->ca)) goto err;
 164                 } else if(!strcmp(val->name, "pathlen")) {
 165                         if(!X509V3_get_value_int(val, &bcons->pathlen)) goto err;
 166                 } else {
 167                         X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, X509V3_R_INVALID_NAME);
 168                         X509V3_conf_err(val);
 169                         goto err;
 170                 }
 171         }
 172         return bcons;
 173         err:
 174         BASIC_CONSTRAINTS_free(bcons);
 175         return NULL;
 176 }
 177