ref: 7be7d0681f567e97fd37f937c2e5e486d6d74eab
dir: /sys/src/ape/lib/openssl/crypto/x509v3/pcy_map.c/
/* pcy_map.c */
/* Written by Dr Stephen N Henson ([email protected]) 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
* [email protected].
*
* 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
* ([email protected]). This product includes software written by Tim
* Hudson ([email protected]).
*
*/
#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;
}