1/* 2 * Copyright 1999-2016 The OpenSSL Project Authors. All Rights Reserved. 3 * 4 * Licensed under the OpenSSL license (the "License"). You may not use 5 * this file except in compliance with the License. You can obtain a copy 6 * in the file LICENSE in the source distribution or at 7 * https://www.openssl.org/source/license.html 8 */ 9 10#include <stdio.h> 11#include "internal/cryptlib.h" 12#include <openssl/asn1.h> 13#include <openssl/asn1t.h> 14#include <openssl/conf.h> 15#include <openssl/x509v3.h> 16#include "ext_dat.h" 17 18static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 19 BASIC_CONSTRAINTS *bcons, 20 STACK_OF(CONF_VALUE) 21 *extlist); 22static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 23 X509V3_CTX *ctx, 24 STACK_OF(CONF_VALUE) *values); 25 26const X509V3_EXT_METHOD v3_bcons = { 27 NID_basic_constraints, 0, 28 ASN1_ITEM_ref(BASIC_CONSTRAINTS), 29 0, 0, 0, 0, 30 0, 0, 31 (X509V3_EXT_I2V) i2v_BASIC_CONSTRAINTS, 32 (X509V3_EXT_V2I)v2i_BASIC_CONSTRAINTS, 33 NULL, NULL, 34 NULL 35}; 36 37ASN1_SEQUENCE(BASIC_CONSTRAINTS) = { 38 ASN1_OPT(BASIC_CONSTRAINTS, ca, ASN1_FBOOLEAN), 39 ASN1_OPT(BASIC_CONSTRAINTS, pathlen, ASN1_INTEGER) 40} ASN1_SEQUENCE_END(BASIC_CONSTRAINTS) 41 42IMPLEMENT_ASN1_FUNCTIONS(BASIC_CONSTRAINTS) 43 44static STACK_OF(CONF_VALUE) *i2v_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 45 BASIC_CONSTRAINTS *bcons, 46 STACK_OF(CONF_VALUE) 47 *extlist) 48{ 49 X509V3_add_value_bool("CA", bcons->ca, &extlist); 50 X509V3_add_value_int("pathlen", bcons->pathlen, &extlist); 51 return extlist; 52} 53 54static BASIC_CONSTRAINTS *v2i_BASIC_CONSTRAINTS(X509V3_EXT_METHOD *method, 55 X509V3_CTX *ctx, 56 STACK_OF(CONF_VALUE) *values) 57{ 58 BASIC_CONSTRAINTS *bcons = NULL; 59 CONF_VALUE *val; 60 int i; 61 62 if ((bcons = BASIC_CONSTRAINTS_new()) == NULL) { 63 X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, ERR_R_MALLOC_FAILURE); 64 return NULL; 65 } 66 for (i = 0; i < sk_CONF_VALUE_num(values); i++) { 67 val = sk_CONF_VALUE_value(values, i); 68 if (strcmp(val->name, "CA") == 0) { 69 if (!X509V3_get_value_bool(val, &bcons->ca)) 70 goto err; 71 } else if (strcmp(val->name, "pathlen") == 0) { 72 if (!X509V3_get_value_int(val, &bcons->pathlen)) 73 goto err; 74 } else { 75 X509V3err(X509V3_F_V2I_BASIC_CONSTRAINTS, X509V3_R_INVALID_NAME); 76 X509V3_conf_err(val); 77 goto err; 78 } 79 } 80 return bcons; 81 err: 82 BASIC_CONSTRAINTS_free(bcons); 83 return NULL; 84} 85