1 /* v3_bcons.c */ 2 /* 3 * Written by Dr Stephen N Henson (steve (at) 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 (at) 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 (at) cryptsoft.com). This product includes software written by Tim 56 * Hudson (tjh (at) cryptsoft.com). */ 57 58 #include <stdio.h> 59 #include <string.h> 60 61 #include <openssl/asn1.h> 62 #include <openssl/asn1t.h> 63 #include <openssl/conf.h> 64 #include <openssl/err.h> 65 #include <openssl/obj.h> 66 #include <openssl/x509v3.h> 67 68 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 69 BASIC_CONSTRAINTS *bcons, 70 STACK_OF(CONF_VALUE) 71 *extlist); 72 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 73 X509V3_CTX *ctx, 74 STACK_OF(CONF_VALUE) *values); 75 76 const X509V3_EXT_METHOD v3_bcons = { 77 NID_basic_constraints, 0, 78 ASN1_ITEM_ref(BASIC_CONSTRAINTS), 79 0, 0, 0, 0, 80 0, 0, 81 (X509V3_EXT_I2V) i2v_BASIC_CONSTRAINTS, 82 (X509V3_EXT_V2I)v2i_BASIC_CONSTRAINTS, 83 NULL, NULL, 84 NULL 85 }; 86 87 ASN1_SEQUENCE(BASIC_CONSTRAINTS) = { 88 ASN1_OPT(BASIC_CONSTRAINTS, ca, ASN1_FBOOLEAN), 89 ASN1_OPT(BASIC_CONSTRAINTS, pathlen, ASN1_INTEGER) 90 } ASN1_SEQUENCE_END(BASIC_CONSTRAINTS) 91 92 IMPLEMENT_ASN1_FUNCTIONS(BASIC_CONSTRAINTS) 93 94 static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 95 BASIC_CONSTRAINTS *bcons, 96 STACK_OF(CONF_VALUE) 97 *extlist) 98 { 99 X509V3_add_value_bool("CA", bcons->ca, &extlist); 100 X509V3_add_value_int("pathlen", bcons->pathlen, &extlist); 101 return extlist; 102 } 103 104 static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 105 X509V3_CTX *ctx, 106 STACK_OF(CONF_VALUE) *values) 107 { 108 BASIC_CONSTRAINTS *bcons = NULL; 109 CONF_VALUE *val; 110 size_t i; 111 if (!(bcons = BASIC_CONSTRAINTS_new())) { 112 OPENSSL_PUT_ERROR(X509V3, ERR_R_MALLOC_FAILURE); 113 return NULL; 114 } 115 for (i = 0; i < sk_CONF_VALUE_num(values); i++) { 116 val = sk_CONF_VALUE_value(values, i); 117 if (!strcmp(val->name, "CA")) { 118 if (!X509V3_get_value_bool(val, &bcons->ca)) 119 goto err; 120 } else if (!strcmp(val->name, "pathlen")) { 121 if (!X509V3_get_value_int(val, &bcons->pathlen)) 122 goto err; 123 } else { 124 OPENSSL_PUT_ERROR(X509V3, X509V3_R_INVALID_NAME); 125 X509V3_conf_err(val); 126 goto err; 127 } 128 } 129 return bcons; 130 err: 131 BASIC_CONSTRAINTS_free(bcons); 132 return NULL; 133 } 134
