pcy_map.c
上传用户:yisoukefu
上传日期:2020-08-09
资源大小:39506k
文件大小:6k
- /* pcy_map.c */
- /* Written by Dr Stephen N Henson (shenson@bigfoot.com) for the OpenSSL
- * project 2004.
- */
- /* ====================================================================
- * Copyright (c) 2004 The OpenSSL Project. All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- *
- * 1. Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * 2. Redistributions in binary form must reproduce the above copyright
- * notice, this list of conditions and the following disclaimer in
- * the documentation and/or other materials provided with the
- * distribution.
- *
- * 3. All advertising materials mentioning features or use of this
- * software must display the following acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
- *
- * 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
- * endorse or promote products derived from this software without
- * prior written permission. For written permission, please contact
- * licensing@OpenSSL.org.
- *
- * 5. Products derived from this software may not be called "OpenSSL"
- * nor may "OpenSSL" appear in their names without prior written
- * permission of the OpenSSL Project.
- *
- * 6. Redistributions of any form whatsoever must retain the following
- * acknowledgment:
- * "This product includes software developed by the OpenSSL Project
- * for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
- *
- * THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
- * EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
- * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
- * ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
- * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
- * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
- * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
- * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
- * OF THE POSSIBILITY OF SUCH DAMAGE.
- * ====================================================================
- *
- * This product includes cryptographic software written by Eric Young
- * (eay@cryptsoft.com). This product includes software written by Tim
- * Hudson (tjh@cryptsoft.com).
- *
- */
- #include "cryptlib.h"
- #include <openssl/x509.h>
- #include <openssl/x509v3.h>
- #include "pcy_int.h"
- static int ref_cmp(const X509_POLICY_REF * const *a,
- const X509_POLICY_REF * const *b)
- {
- return OBJ_cmp((*a)->subjectDomainPolicy, (*b)->subjectDomainPolicy);
- }
- static void policy_map_free(X509_POLICY_REF *map)
- {
- if (map->subjectDomainPolicy)
- ASN1_OBJECT_free(map->subjectDomainPolicy);
- OPENSSL_free(map);
- }
- static X509_POLICY_REF *policy_map_find(X509_POLICY_CACHE *cache, ASN1_OBJECT *id)
- {
- X509_POLICY_REF tmp;
- int idx;
- tmp.subjectDomainPolicy = id;
- idx = sk_X509_POLICY_REF_find(cache->maps, &tmp);
- if (idx == -1)
- return NULL;
- return sk_X509_POLICY_REF_value(cache->maps, idx);
- }
- /* Set policy mapping entries in cache.
- * Note: this modifies the passed POLICY_MAPPINGS structure
- */
- int policy_cache_set_mapping(X509 *x, POLICY_MAPPINGS *maps)
- {
- POLICY_MAPPING *map;
- X509_POLICY_REF *ref = NULL;
- X509_POLICY_DATA *data;
- X509_POLICY_CACHE *cache = x->policy_cache;
- int i;
- int ret = 0;
- if (sk_POLICY_MAPPING_num(maps) == 0)
- {
- ret = -1;
- goto bad_mapping;
- }
- cache->maps = sk_X509_POLICY_REF_new(ref_cmp);
- for (i = 0; i < sk_POLICY_MAPPING_num(maps); i++)
- {
- map = sk_POLICY_MAPPING_value(maps, i);
- /* Reject if map to or from anyPolicy */
- if ((OBJ_obj2nid(map->subjectDomainPolicy) == NID_any_policy)
- || (OBJ_obj2nid(map->issuerDomainPolicy) == NID_any_policy))
- {
- ret = -1;
- goto bad_mapping;
- }
- /* If we've already mapped from this OID bad mapping */
- if (policy_map_find(cache, map->subjectDomainPolicy) != NULL)
- {
- ret = -1;
- goto bad_mapping;
- }
- /* Attempt to find matching policy data */
- data = policy_cache_find_data(cache, map->issuerDomainPolicy);
- /* If we don't have anyPolicy can't map */
- if (!data && !cache->anyPolicy)
- continue;
- /* Create a NODE from anyPolicy */
- if (!data)
- {
- data = policy_data_new(NULL, map->issuerDomainPolicy,
- cache->anyPolicy->flags
- & POLICY_DATA_FLAG_CRITICAL);
- if (!data)
- goto bad_mapping;
- data->qualifier_set = cache->anyPolicy->qualifier_set;
- map->issuerDomainPolicy = NULL;
- data->flags |= POLICY_DATA_FLAG_MAPPED_ANY;
- data->flags |= POLICY_DATA_FLAG_SHARED_QUALIFIERS;
- if (!sk_X509_POLICY_DATA_push(cache->data, data))
- {
- policy_data_free(data);
- goto bad_mapping;
- }
- }
- else
- data->flags |= POLICY_DATA_FLAG_MAPPED;
- if (!sk_ASN1_OBJECT_push(data->expected_policy_set,
- map->subjectDomainPolicy))
- goto bad_mapping;
-
- ref = OPENSSL_malloc(sizeof(X509_POLICY_REF));
- if (!ref)
- goto bad_mapping;
- ref->subjectDomainPolicy = map->subjectDomainPolicy;
- map->subjectDomainPolicy = NULL;
- ref->data = data;
- if (!sk_X509_POLICY_REF_push(cache->maps, ref))
- goto bad_mapping;
- ref = NULL;
- }
- ret = 1;
- bad_mapping:
- if (ret == -1)
- x->ex_flags |= EXFLAG_INVALID_POLICY;
- if (ref)
- policy_map_free(ref);
- if (ret <= 0)
- {
- sk_X509_POLICY_REF_pop_free(cache->maps, policy_map_free);
- cache->maps = NULL;
- }
- sk_POLICY_MAPPING_pop_free(maps, POLICY_MAPPING_free);
- return ret;
- }