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 67static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 68 BASIC_CONSTRAINTS *bcons, 69 STACK_OF(CONF_VALUE) 70 *extlist); 71static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 72 X509V3_CTX *ctx, 73 STACK_OF(CONF_VALUE) *values); 74 75const 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 86ASN1_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 91IMPLEMENT_ASN1_FUNCTIONS(BASIC_CONSTRAINTS) 92 93static 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 103static 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} 133