1 /* $OpenBSD: x509_pmaps.c,v 1.6 2024/08/31 10:03:03 tb Exp $ */ 2 /* Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL 3 * project. 4 */ 5 /* ==================================================================== 6 * Copyright (c) 2003 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 62 #include <openssl/asn1t.h> 63 #include <openssl/conf.h> 64 #include <openssl/err.h> 65 #include <openssl/x509v3.h> 66 67 #include "x509_local.h" 68 69 static void *v2i_POLICY_MAPPINGS(const X509V3_EXT_METHOD *method, 70 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); 71 static STACK_OF(CONF_VALUE) *i2v_POLICY_MAPPINGS( 72 const X509V3_EXT_METHOD *method, void *pmps, STACK_OF(CONF_VALUE) *extlist); 73 74 static const X509V3_EXT_METHOD x509v3_ext_policy_mappings = { 75 .ext_nid = NID_policy_mappings, 76 .ext_flags = 0, 77 .it = &POLICY_MAPPINGS_it, 78 .ext_new = NULL, 79 .ext_free = NULL, 80 .d2i = NULL, 81 .i2d = NULL, 82 .i2s = NULL, 83 .s2i = NULL, 84 .i2v = i2v_POLICY_MAPPINGS, 85 .v2i = v2i_POLICY_MAPPINGS, 86 .i2r = NULL, 87 .r2i = NULL, 88 .usr_data = NULL, 89 }; 90 91 const X509V3_EXT_METHOD * 92 x509v3_ext_method_policy_mappings(void) 93 { 94 return &x509v3_ext_policy_mappings; 95 } 96 97 static const ASN1_TEMPLATE POLICY_MAPPING_seq_tt[] = { 98 { 99 .flags = 0, 100 .tag = 0, 101 .offset = offsetof(POLICY_MAPPING, issuerDomainPolicy), 102 .field_name = "issuerDomainPolicy", 103 .item = &ASN1_OBJECT_it, 104 }, 105 { 106 .flags = 0, 107 .tag = 0, 108 .offset = offsetof(POLICY_MAPPING, subjectDomainPolicy), 109 .field_name = "subjectDomainPolicy", 110 .item = &ASN1_OBJECT_it, 111 }, 112 }; 113 114 const ASN1_ITEM POLICY_MAPPING_it = { 115 .itype = ASN1_ITYPE_SEQUENCE, 116 .utype = V_ASN1_SEQUENCE, 117 .templates = POLICY_MAPPING_seq_tt, 118 .tcount = sizeof(POLICY_MAPPING_seq_tt) / sizeof(ASN1_TEMPLATE), 119 .funcs = NULL, 120 .size = sizeof(POLICY_MAPPING), 121 .sname = "POLICY_MAPPING", 122 }; 123 LCRYPTO_ALIAS(POLICY_MAPPING_it); 124 125 static const ASN1_TEMPLATE POLICY_MAPPINGS_item_tt = { 126 .flags = ASN1_TFLG_SEQUENCE_OF, 127 .tag = 0, 128 .offset = 0, 129 .field_name = "POLICY_MAPPINGS", 130 .item = &POLICY_MAPPING_it, 131 }; 132 133 const ASN1_ITEM POLICY_MAPPINGS_it = { 134 .itype = ASN1_ITYPE_PRIMITIVE, 135 .utype = -1, 136 .templates = &POLICY_MAPPINGS_item_tt, 137 .tcount = 0, 138 .funcs = NULL, 139 .size = 0, 140 .sname = "POLICY_MAPPINGS", 141 }; 142 LCRYPTO_ALIAS(POLICY_MAPPINGS_it); 143 144 145 POLICY_MAPPING * 146 POLICY_MAPPING_new(void) 147 { 148 return (POLICY_MAPPING*)ASN1_item_new(&POLICY_MAPPING_it); 149 } 150 LCRYPTO_ALIAS(POLICY_MAPPING_new); 151 152 void 153 POLICY_MAPPING_free(POLICY_MAPPING *a) 154 { 155 ASN1_item_free((ASN1_VALUE *)a, &POLICY_MAPPING_it); 156 } 157 LCRYPTO_ALIAS(POLICY_MAPPING_free); 158 159 static STACK_OF(CONF_VALUE) * 160 i2v_POLICY_MAPPINGS(const X509V3_EXT_METHOD *method, void *a, 161 STACK_OF(CONF_VALUE) *extlist) 162 { 163 STACK_OF(CONF_VALUE) *free_extlist = NULL; 164 POLICY_MAPPINGS *pmaps = a; 165 POLICY_MAPPING *pmap; 166 char issuer[80], subject[80]; 167 int i; 168 169 if (extlist == NULL) { 170 if ((free_extlist = extlist = sk_CONF_VALUE_new_null()) == NULL) 171 return NULL; 172 } 173 174 for (i = 0; i < sk_POLICY_MAPPING_num(pmaps); i++) { 175 if ((pmap = sk_POLICY_MAPPING_value(pmaps, i)) == NULL) 176 goto err; 177 if (!i2t_ASN1_OBJECT(issuer, sizeof issuer, 178 pmap->issuerDomainPolicy)) 179 goto err; 180 if (!i2t_ASN1_OBJECT(subject, sizeof subject, 181 pmap->subjectDomainPolicy)) 182 goto err; 183 if (!X509V3_add_value(issuer, subject, &extlist)) 184 goto err; 185 } 186 187 return extlist; 188 189 err: 190 sk_CONF_VALUE_pop_free(free_extlist, X509V3_conf_free); 191 192 return NULL; 193 } 194 195 static void * 196 v2i_POLICY_MAPPINGS(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 197 STACK_OF(CONF_VALUE) *nval) 198 { 199 POLICY_MAPPINGS *pmaps = NULL; 200 POLICY_MAPPING *pmap = NULL; 201 ASN1_OBJECT *obj1 = NULL, *obj2 = NULL; 202 CONF_VALUE *val; 203 int i, rc; 204 205 if (!(pmaps = sk_POLICY_MAPPING_new_null())) { 206 X509V3error(ERR_R_MALLOC_FAILURE); 207 return NULL; 208 } 209 210 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 211 val = sk_CONF_VALUE_value(nval, i); 212 if (!val->value || !val->name) { 213 rc = X509V3_R_INVALID_OBJECT_IDENTIFIER; 214 goto err; 215 } 216 obj1 = OBJ_txt2obj(val->name, 0); 217 obj2 = OBJ_txt2obj(val->value, 0); 218 if (!obj1 || !obj2) { 219 rc = X509V3_R_INVALID_OBJECT_IDENTIFIER; 220 goto err; 221 } 222 pmap = POLICY_MAPPING_new(); 223 if (!pmap) { 224 rc = ERR_R_MALLOC_FAILURE; 225 goto err; 226 } 227 pmap->issuerDomainPolicy = obj1; 228 pmap->subjectDomainPolicy = obj2; 229 obj1 = obj2 = NULL; 230 if (sk_POLICY_MAPPING_push(pmaps, pmap) == 0) { 231 rc = ERR_R_MALLOC_FAILURE; 232 goto err; 233 } 234 pmap = NULL; 235 } 236 return pmaps; 237 238 err: 239 sk_POLICY_MAPPING_pop_free(pmaps, POLICY_MAPPING_free); 240 X509V3error(rc); 241 if (rc == X509V3_R_INVALID_OBJECT_IDENTIFIER) 242 X509V3_conf_err(val); 243 ASN1_OBJECT_free(obj1); 244 ASN1_OBJECT_free(obj2); 245 POLICY_MAPPING_free(pmap); 246 return NULL; 247 } 248