1 /* $OpenBSD: x509_pmaps.c,v 1.1 2020/06/04 15:19:32 jsing 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 static void *v2i_POLICY_MAPPINGS(const X509V3_EXT_METHOD *method, 68 X509V3_CTX *ctx, STACK_OF(CONF_VALUE) *nval); 69 static STACK_OF(CONF_VALUE) *i2v_POLICY_MAPPINGS( 70 const X509V3_EXT_METHOD *method, void *pmps, STACK_OF(CONF_VALUE) *extlist); 71 72 const X509V3_EXT_METHOD v3_policy_mappings = { 73 .ext_nid = NID_policy_mappings, 74 .ext_flags = 0, 75 .it = &POLICY_MAPPINGS_it, 76 .ext_new = NULL, 77 .ext_free = NULL, 78 .d2i = NULL, 79 .i2d = NULL, 80 .i2s = NULL, 81 .s2i = NULL, 82 .i2v = i2v_POLICY_MAPPINGS, 83 .v2i = v2i_POLICY_MAPPINGS, 84 .i2r = NULL, 85 .r2i = NULL, 86 .usr_data = NULL, 87 }; 88 89 static const ASN1_TEMPLATE POLICY_MAPPING_seq_tt[] = { 90 { 91 .flags = 0, 92 .tag = 0, 93 .offset = offsetof(POLICY_MAPPING, issuerDomainPolicy), 94 .field_name = "issuerDomainPolicy", 95 .item = &ASN1_OBJECT_it, 96 }, 97 { 98 .flags = 0, 99 .tag = 0, 100 .offset = offsetof(POLICY_MAPPING, subjectDomainPolicy), 101 .field_name = "subjectDomainPolicy", 102 .item = &ASN1_OBJECT_it, 103 }, 104 }; 105 106 const ASN1_ITEM POLICY_MAPPING_it = { 107 .itype = ASN1_ITYPE_SEQUENCE, 108 .utype = V_ASN1_SEQUENCE, 109 .templates = POLICY_MAPPING_seq_tt, 110 .tcount = sizeof(POLICY_MAPPING_seq_tt) / sizeof(ASN1_TEMPLATE), 111 .funcs = NULL, 112 .size = sizeof(POLICY_MAPPING), 113 .sname = "POLICY_MAPPING", 114 }; 115 116 static const ASN1_TEMPLATE POLICY_MAPPINGS_item_tt = { 117 .flags = ASN1_TFLG_SEQUENCE_OF, 118 .tag = 0, 119 .offset = 0, 120 .field_name = "POLICY_MAPPINGS", 121 .item = &POLICY_MAPPING_it, 122 }; 123 124 const ASN1_ITEM POLICY_MAPPINGS_it = { 125 .itype = ASN1_ITYPE_PRIMITIVE, 126 .utype = -1, 127 .templates = &POLICY_MAPPINGS_item_tt, 128 .tcount = 0, 129 .funcs = NULL, 130 .size = 0, 131 .sname = "POLICY_MAPPINGS", 132 }; 133 134 135 POLICY_MAPPING * 136 POLICY_MAPPING_new(void) 137 { 138 return (POLICY_MAPPING*)ASN1_item_new(&POLICY_MAPPING_it); 139 } 140 141 void 142 POLICY_MAPPING_free(POLICY_MAPPING *a) 143 { 144 ASN1_item_free((ASN1_VALUE *)a, &POLICY_MAPPING_it); 145 } 146 147 static STACK_OF(CONF_VALUE) * 148 i2v_POLICY_MAPPINGS(const X509V3_EXT_METHOD *method, void *a, 149 STACK_OF(CONF_VALUE) *extlist) 150 { 151 STACK_OF(CONF_VALUE) *free_extlist = NULL; 152 POLICY_MAPPINGS *pmaps = a; 153 POLICY_MAPPING *pmap; 154 char issuer[80], subject[80]; 155 int i; 156 157 if (extlist == NULL) { 158 if ((free_extlist = extlist = sk_CONF_VALUE_new_null()) == NULL) 159 return NULL; 160 } 161 162 for (i = 0; i < sk_POLICY_MAPPING_num(pmaps); i++) { 163 if ((pmap = sk_POLICY_MAPPING_value(pmaps, i)) == NULL) 164 goto err; 165 if (!i2t_ASN1_OBJECT(issuer, sizeof issuer, 166 pmap->issuerDomainPolicy)) 167 goto err; 168 if (!i2t_ASN1_OBJECT(subject, sizeof subject, 169 pmap->subjectDomainPolicy)) 170 goto err; 171 if (!X509V3_add_value(issuer, subject, &extlist)) 172 goto err; 173 } 174 175 return extlist; 176 177 err: 178 sk_CONF_VALUE_pop_free(free_extlist, X509V3_conf_free); 179 180 return NULL; 181 } 182 183 static void * 184 v2i_POLICY_MAPPINGS(const X509V3_EXT_METHOD *method, X509V3_CTX *ctx, 185 STACK_OF(CONF_VALUE) *nval) 186 { 187 POLICY_MAPPINGS *pmaps = NULL; 188 POLICY_MAPPING *pmap = NULL; 189 ASN1_OBJECT *obj1 = NULL, *obj2 = NULL; 190 CONF_VALUE *val; 191 int i, rc; 192 193 if (!(pmaps = sk_POLICY_MAPPING_new_null())) { 194 X509V3error(ERR_R_MALLOC_FAILURE); 195 return NULL; 196 } 197 198 for (i = 0; i < sk_CONF_VALUE_num(nval); i++) { 199 val = sk_CONF_VALUE_value(nval, i); 200 if (!val->value || !val->name) { 201 rc = X509V3_R_INVALID_OBJECT_IDENTIFIER; 202 goto err; 203 } 204 obj1 = OBJ_txt2obj(val->name, 0); 205 obj2 = OBJ_txt2obj(val->value, 0); 206 if (!obj1 || !obj2) { 207 rc = X509V3_R_INVALID_OBJECT_IDENTIFIER; 208 goto err; 209 } 210 pmap = POLICY_MAPPING_new(); 211 if (!pmap) { 212 rc = ERR_R_MALLOC_FAILURE; 213 goto err; 214 } 215 pmap->issuerDomainPolicy = obj1; 216 pmap->subjectDomainPolicy = obj2; 217 obj1 = obj2 = NULL; 218 if (sk_POLICY_MAPPING_push(pmaps, pmap) == 0) { 219 rc = ERR_R_MALLOC_FAILURE; 220 goto err; 221 } 222 pmap = NULL; 223 } 224 return pmaps; 225 226 err: 227 sk_POLICY_MAPPING_pop_free(pmaps, POLICY_MAPPING_free); 228 X509V3error(rc); 229 if (rc == X509V3_R_INVALID_OBJECT_IDENTIFIER) 230 X509V3_conf_err(val); 231 ASN1_OBJECT_free(obj1); 232 ASN1_OBJECT_free(obj2); 233 POLICY_MAPPING_free(pmap); 234 return NULL; 235 } 236