1160814Ssimon/* pcy_map.c */ 2296465Sdelphij/* 3296465Sdelphij * Written by Dr Stephen N Henson (steve@openssl.org) for the OpenSSL project 4296465Sdelphij * 2004. 5160814Ssimon */ 6160814Ssimon/* ==================================================================== 7160814Ssimon * Copyright (c) 2004 The OpenSSL Project. All rights reserved. 8160814Ssimon * 9160814Ssimon * Redistribution and use in source and binary forms, with or without 10160814Ssimon * modification, are permitted provided that the following conditions 11160814Ssimon * are met: 12160814Ssimon * 13160814Ssimon * 1. Redistributions of source code must retain the above copyright 14296465Sdelphij * notice, this list of conditions and the following disclaimer. 15160814Ssimon * 16160814Ssimon * 2. Redistributions in binary form must reproduce the above copyright 17160814Ssimon * notice, this list of conditions and the following disclaimer in 18160814Ssimon * the documentation and/or other materials provided with the 19160814Ssimon * distribution. 20160814Ssimon * 21160814Ssimon * 3. All advertising materials mentioning features or use of this 22160814Ssimon * software must display the following acknowledgment: 23160814Ssimon * "This product includes software developed by the OpenSSL Project 24160814Ssimon * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)" 25160814Ssimon * 26160814Ssimon * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to 27160814Ssimon * endorse or promote products derived from this software without 28160814Ssimon * prior written permission. For written permission, please contact 29160814Ssimon * licensing@OpenSSL.org. 30160814Ssimon * 31160814Ssimon * 5. Products derived from this software may not be called "OpenSSL" 32160814Ssimon * nor may "OpenSSL" appear in their names without prior written 33160814Ssimon * permission of the OpenSSL Project. 34160814Ssimon * 35160814Ssimon * 6. Redistributions of any form whatsoever must retain the following 36160814Ssimon * acknowledgment: 37160814Ssimon * "This product includes software developed by the OpenSSL Project 38160814Ssimon * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)" 39160814Ssimon * 40160814Ssimon * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY 41160814Ssimon * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 42160814Ssimon * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 43160814Ssimon * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR 44160814Ssimon * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 45160814Ssimon * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 46160814Ssimon * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 47160814Ssimon * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 48160814Ssimon * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 49160814Ssimon * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 50160814Ssimon * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED 51160814Ssimon * OF THE POSSIBILITY OF SUCH DAMAGE. 52160814Ssimon * ==================================================================== 53160814Ssimon * 54160814Ssimon * This product includes cryptographic software written by Eric Young 55160814Ssimon * (eay@cryptsoft.com). This product includes software written by Tim 56160814Ssimon * Hudson (tjh@cryptsoft.com). 57160814Ssimon * 58160814Ssimon */ 59160814Ssimon 60160814Ssimon#include "cryptlib.h" 61160814Ssimon#include <openssl/x509.h> 62160814Ssimon#include <openssl/x509v3.h> 63160814Ssimon 64160814Ssimon#include "pcy_int.h" 65160814Ssimon 66160814Ssimonstatic int ref_cmp(const X509_POLICY_REF * const *a, 67296465Sdelphij const X509_POLICY_REF * const *b) 68296465Sdelphij{ 69296465Sdelphij return OBJ_cmp((*a)->subjectDomainPolicy, (*b)->subjectDomainPolicy); 70296465Sdelphij} 71160814Ssimon 72296465Sdelphijstatic void policy_map_free(X509_POLICY_REF * map) 73296465Sdelphij{ 74296465Sdelphij OPENSSL_free(map); 75296465Sdelphij} 76160814Ssimon 77296465Sdelphijstatic X509_POLICY_REF *policy_map_find(X509_POLICY_CACHE *cache, 78296465Sdelphij ASN1_OBJECT *id) 79296465Sdelphij{ 80296465Sdelphij X509_POLICY_REF tmp; 81296465Sdelphij int idx; 82296465Sdelphij tmp.subjectDomainPolicy = id; 83160814Ssimon 84296465Sdelphij idx = sk_X509_POLICY_REF_find(cache->maps, &tmp); 85296465Sdelphij if (idx == -1) 86296465Sdelphij return NULL; 87296465Sdelphij return sk_X509_POLICY_REF_value(cache->maps, idx); 88296465Sdelphij} 89160814Ssimon 90296465Sdelphij/* 91296465Sdelphij * Set policy mapping entries in cache. Note: this modifies the passed 92296465Sdelphij * POLICY_MAPPINGS structure 93160814Ssimon */ 94160814Ssimon 95160814Ssimonint policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps) 96296465Sdelphij{ 97296465Sdelphij POLICY_MAPPING *map; 98296465Sdelphij X509_POLICY_REF *ref = NULL; 99296465Sdelphij ASN1_OBJECT *subjectDomainPolicyRef; 100296465Sdelphij X509_POLICY_DATA *data; 101296465Sdelphij X509_POLICY_CACHE *cache = x->policy_cache; 102296465Sdelphij int i; 103296465Sdelphij int ret = 0; 104296465Sdelphij if (sk_POLICY_MAPPING_num(maps) == 0) { 105296465Sdelphij ret = -1; 106296465Sdelphij goto bad_mapping; 107296465Sdelphij } 108296465Sdelphij cache->maps = sk_X509_POLICY_REF_new(ref_cmp); 109296465Sdelphij for (i = 0; i < sk_POLICY_MAPPING_num(maps); i++) { 110296465Sdelphij map = sk_POLICY_MAPPING_value(maps, i); 111296465Sdelphij /* Reject if map to or from anyPolicy */ 112296465Sdelphij if ((OBJ_obj2nid(map->subjectDomainPolicy) == NID_any_policy) 113296465Sdelphij || (OBJ_obj2nid(map->issuerDomainPolicy) == NID_any_policy)) { 114296465Sdelphij ret = -1; 115296465Sdelphij goto bad_mapping; 116296465Sdelphij } 117160814Ssimon 118296465Sdelphij /* If we've already mapped from this OID bad mapping */ 119296465Sdelphij if (policy_map_find(cache, map->subjectDomainPolicy) != NULL) { 120296465Sdelphij ret = -1; 121296465Sdelphij goto bad_mapping; 122296465Sdelphij } 123160814Ssimon 124296465Sdelphij /* Attempt to find matching policy data */ 125296465Sdelphij data = policy_cache_find_data(cache, map->issuerDomainPolicy); 126296465Sdelphij /* If we don't have anyPolicy can't map */ 127296465Sdelphij if (!data && !cache->anyPolicy) 128296465Sdelphij continue; 129160814Ssimon 130296465Sdelphij /* Create a NODE from anyPolicy */ 131296465Sdelphij if (!data) { 132296465Sdelphij data = policy_data_new(NULL, map->issuerDomainPolicy, 133296465Sdelphij cache->anyPolicy->flags 134296465Sdelphij & POLICY_DATA_FLAG_CRITICAL); 135296465Sdelphij if (!data) 136296465Sdelphij goto bad_mapping; 137296465Sdelphij data->qualifier_set = cache->anyPolicy->qualifier_set; 138296465Sdelphij map->issuerDomainPolicy = NULL; 139296465Sdelphij data->flags |= POLICY_DATA_FLAG_MAPPED_ANY; 140296465Sdelphij data->flags |= POLICY_DATA_FLAG_SHARED_QUALIFIERS; 141296465Sdelphij if (!sk_X509_POLICY_DATA_push(cache->data, data)) { 142296465Sdelphij policy_data_free(data); 143296465Sdelphij goto bad_mapping; 144296465Sdelphij } 145296465Sdelphij } else 146296465Sdelphij data->flags |= POLICY_DATA_FLAG_MAPPED; 147160814Ssimon 148296465Sdelphij if (!sk_ASN1_OBJECT_push(data->expected_policy_set, 149296465Sdelphij map->subjectDomainPolicy)) 150296465Sdelphij goto bad_mapping; 151296465Sdelphij /* 152296465Sdelphij * map->subjectDomainPolicy will be freed when cache->data is freed. 153296465Sdelphij * Set it to NULL to avoid double-free. 154296465Sdelphij */ 155296465Sdelphij subjectDomainPolicyRef = map->subjectDomainPolicy; 156296465Sdelphij map->subjectDomainPolicy = NULL; 157160814Ssimon 158296465Sdelphij ref = OPENSSL_malloc(sizeof(X509_POLICY_REF)); 159296465Sdelphij if (!ref) 160296465Sdelphij goto bad_mapping; 161160814Ssimon 162296465Sdelphij ref->subjectDomainPolicy = subjectDomainPolicyRef; 163296465Sdelphij ref->data = data; 164160814Ssimon 165296465Sdelphij if (!sk_X509_POLICY_REF_push(cache->maps, ref)) 166296465Sdelphij goto bad_mapping; 167160814Ssimon 168296465Sdelphij ref = NULL; 169160814Ssimon 170296465Sdelphij } 171160814Ssimon 172296465Sdelphij ret = 1; 173296465Sdelphij bad_mapping: 174296465Sdelphij if (ret == -1) 175296465Sdelphij x->ex_flags |= EXFLAG_INVALID_POLICY; 176296465Sdelphij if (ref) 177296465Sdelphij policy_map_free(ref); 178296465Sdelphij if (ret <= 0) { 179296465Sdelphij sk_X509_POLICY_REF_pop_free(cache->maps, policy_map_free); 180296465Sdelphij cache->maps = NULL; 181296465Sdelphij } 182296465Sdelphij sk_POLICY_MAPPING_pop_free(maps, POLICY_MAPPING_free); 183296465Sdelphij return ret; 184296465Sdelphij 185296465Sdelphij} 186