v3_bcons.c revision 68651
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 67static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, BASIC_CONSTRAINTS *bcons, STACK_OF(CONF_VALUE) *extlist); 68static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *values); 69 70X509V3_EXT_METHOD v3_bcons = { 71NID_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, 76NULL, NULL, 77(X509V3_EXT_I2V)i2v_BASIC_CONSTRAINTS, 78(X509V3_EXT_V2I)v2i_BASIC_CONSTRAINTS, 79NULL,NULL, 80NULL 81}; 82 83 84int 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 97BASIC_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 108BASIC_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 122void BASIC_CONSTRAINTS_free(BASIC_CONSTRAINTS *a) 123{ 124 if (a == NULL) return; 125 M_ASN1_INTEGER_free (a->pathlen); 126 OPENSSL_free (a); 127} 128 129static 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 137static 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} 164 165