1 /* $OpenBSD: x509_bitst.c,v 1.8 2024/08/31 10:23:13 tb Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) 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 #include <stdio.h> 60 #include <string.h> 61 62 #include <openssl/conf.h> 63 #include <openssl/err.h> 64 #include <openssl/x509v3.h> 65 66 #include "x509_local.h" 67 68 static const BIT_STRING_BITNAME ns_cert_type_table[] = { 69 {0, "SSL Client", "client"}, 70 {1, "SSL Server", "server"}, 71 {2, "S/MIME", "email"}, 72 {3, "Object Signing", "objsign"}, 73 {4, "Unused", "reserved"}, 74 {5, "SSL CA", "sslCA"}, 75 {6, "S/MIME CA", "emailCA"}, 76 {7, "Object Signing CA", "objCA"}, 77 {-1, NULL, NULL} 78 }; 79 80 static const BIT_STRING_BITNAME key_usage_type_table[] = { 81 {0, "Digital Signature", "digitalSignature"}, 82 {1, "Non Repudiation", "nonRepudiation"}, 83 {2, "Key Encipherment", "keyEncipherment"}, 84 {3, "Data Encipherment", "dataEncipherment"}, 85 {4, "Key Agreement", "keyAgreement"}, 86 {5, "Certificate Sign", "keyCertSign"}, 87 {6, "CRL Sign", "cRLSign"}, 88 {7, "Encipher Only", "encipherOnly"}, 89 {8, "Decipher Only", "decipherOnly"}, 90 {-1, NULL, NULL} 91 }; 92 93 static const BIT_STRING_BITNAME crl_reasons[] = { 94 {CRL_REASON_UNSPECIFIED, "Unspecified", "unspecified"}, 95 {CRL_REASON_KEY_COMPROMISE, "Key Compromise", "keyCompromise"}, 96 {CRL_REASON_CA_COMPROMISE, "CA Compromise", "CACompromise"}, 97 {CRL_REASON_AFFILIATION_CHANGED, "Affiliation Changed", "affiliationChanged"}, 98 {CRL_REASON_SUPERSEDED, "Superseded", "superseded"}, 99 {CRL_REASON_CESSATION_OF_OPERATION, "Cessation Of Operation", "cessationOfOperation"}, 100 {CRL_REASON_CERTIFICATE_HOLD, "Certificate Hold", "certificateHold"}, 101 {CRL_REASON_REMOVE_FROM_CRL, "Remove From CRL", "removeFromCRL"}, 102 {CRL_REASON_PRIVILEGE_WITHDRAWN, "Privilege Withdrawn", "privilegeWithdrawn"}, 103 {CRL_REASON_AA_COMPROMISE, "AA Compromise", "AACompromise"}, 104 {-1, NULL, NULL} 105 }; 106 107 static const X509V3_EXT_METHOD x509v3_ext_netscape_cert_type = { 108 .ext_nid = NID_netscape_cert_type, 109 .ext_flags = 0, 110 .it = &ASN1_BIT_STRING_it, 111 .ext_new = NULL, 112 .ext_free = NULL, 113 .d2i = NULL, 114 .i2d = NULL, 115 .i2s = NULL, 116 .s2i = NULL, 117 .i2v = (X509V3_EXT_I2V)i2v_ASN1_BIT_STRING, 118 .v2i = (X509V3_EXT_V2I)v2i_ASN1_BIT_STRING, 119 .i2r = NULL, 120 .r2i = NULL, 121 .usr_data = ns_cert_type_table, 122 }; 123 124 const X509V3_EXT_METHOD * 125 x509v3_ext_method_netscape_cert_type(void) 126 { 127 return &x509v3_ext_netscape_cert_type; 128 } 129 130 static const X509V3_EXT_METHOD x509v3_ext_key_usage = { 131 .ext_nid = NID_key_usage, 132 .ext_flags = 0, 133 .it = &ASN1_BIT_STRING_it, 134 .ext_new = NULL, 135 .ext_free = NULL, 136 .d2i = NULL, 137 .i2d = NULL, 138 .i2s = NULL, 139 .s2i = NULL, 140 .i2v = (X509V3_EXT_I2V)i2v_ASN1_BIT_STRING, 141 .v2i = (X509V3_EXT_V2I)v2i_ASN1_BIT_STRING, 142 .i2r = NULL, 143 .r2i = NULL, 144 .usr_data = key_usage_type_table, 145 }; 146 147 const X509V3_EXT_METHOD * 148 x509v3_ext_method_key_usage(void) 149 { 150 return &x509v3_ext_key_usage; 151 } 152 153 static const X509V3_EXT_METHOD x509v3_ext_crl_reason = { 154 .ext_nid = NID_crl_reason, 155 .ext_flags = 0, 156 .it = &ASN1_ENUMERATED_it, 157 .ext_new = NULL, 158 .ext_free = NULL, 159 .d2i = NULL, 160 .i2d = NULL, 161 .i2s = (X509V3_EXT_I2S)i2s_ASN1_ENUMERATED_TABLE, 162 .s2i = NULL, 163 .i2v = NULL, 164 .v2i = NULL, 165 .i2r = NULL, 166 .r2i = NULL, 167 .usr_data = crl_reasons, 168 }; 169 170 const X509V3_EXT_METHOD * 171 x509v3_ext_method_crl_reason(void) 172 { 173 return &x509v3_ext_crl_reason; 174 } 175 176 STACK_OF(CONF_VALUE) * 177 i2v_ASN1_BIT_STRING(X509V3_EXT_METHOD *method, ASN1_BIT_STRING *bits, 178 STACK_OF(CONF_VALUE) *ret) 179 { 180 const BIT_STRING_BITNAME *bnam; 181 STACK_OF(CONF_VALUE) *free_ret = NULL; 182 183 if (ret == NULL) { 184 if ((free_ret = ret = sk_CONF_VALUE_new_null()) == NULL) 185 return NULL; 186 } 187 188 for (bnam = method->usr_data; bnam->lname != NULL; bnam++) { 189 if (!ASN1_BIT_STRING_get_bit(bits, bnam->bitnum)) 190 continue; 191 if (!X509V3_add_value(bnam->lname, NULL, &ret)) 192 goto err; 193 } 194 195 return ret; 196 197 err: 198 sk_CONF_VALUE_pop_free(free_ret, X509V3_conf_free); 199 200 return NULL; 201 } 202 LCRYPTO_ALIAS(i2v_ASN1_BIT_STRING); 203 204 ASN1_BIT_STRING * 205 v2i_ASN1_BIT_STRING(X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 206 STACK_OF(CONF_VALUE) *nval) 207 { 208 CONF_VALUE *val; 209 ASN1_BIT_STRING *bs; 210 int i; 211 const BIT_STRING_BITNAME *bnam; 212 213 if (!(bs = ASN1_BIT_STRING_new())) { 214 X509V3error(ERR_R_MALLOC_FAILURE); 215 return NULL; 216 } 217 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 218 val = sk_CONF_VALUE_value(nval, i); 219 for (bnam = method->usr_data; bnam->lname; bnam++) { 220 if (!strcmp(bnam->sname, val->name) || 221 !strcmp(bnam->lname, val->name) ) { 222 if (!ASN1_BIT_STRING_set_bit(bs, 223 bnam->bitnum, 1)) { 224 X509V3error(ERR_R_MALLOC_FAILURE); 225 ASN1_BIT_STRING_free(bs); 226 return NULL; 227 } 228 break; 229 } 230 } 231 if (!bnam->lname) { 232 X509V3error(X509V3_R_UNKNOWN_BIT_STRING_ARGUMENT); 233 X509V3_conf_err(val); 234 ASN1_BIT_STRING_free(bs); 235 return NULL; 236 } 237 } 238 return bs; 239 } 240 LCRYPTO_ALIAS(v2i_ASN1_BIT_STRING); 241