Initial import

1 files changed, 286 insertions, 0 deletions

diff --git a/openssl/crypto/x509v3/pcy_cache.c b/openssl/crypto/x509v3/pcy_cache.c
new file mode 100644
index 00000000..172b7e7e
--- /dev/null
+++ b/openssl/crypto/x509v3/pcy_cache.c
@@ -0,0 +1,286 @@
+/* pcy_cache.c */
+/* Written by Dr Stephen N Henson (steve@openssl.org) 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 policy_data_cmp(const X509_POLICY_DATA * const *a,
+				const X509_POLICY_DATA * const *b);
+static int policy_cache_set_int(long *out, ASN1_INTEGER *value);
+
+/* Set cache entry according to CertificatePolicies extension.
+ * Note: this destroys the passed CERTIFICATEPOLICIES structure.
+ */
+
+static int policy_cache_create(X509 *x,
+			CERTIFICATEPOLICIES *policies, int crit)
+	{
+	int i;
+	int ret = 0;
+	X509_POLICY_CACHE *cache = x->policy_cache;
+	X509_POLICY_DATA *data = NULL;
+	POLICYINFO *policy;
+	if (sk_POLICYINFO_num(policies) == 0)
+		goto bad_policy;
+	cache->data = sk_X509_POLICY_DATA_new(policy_data_cmp);
+	if (!cache->data)
+		goto bad_policy;
+	for (i = 0; i < sk_POLICYINFO_num(policies); i++)
+		{
+		policy = sk_POLICYINFO_value(policies, i);
+		data = policy_data_new(policy, NULL, crit);
+		if (!data)
+			goto bad_policy;
+		/* Duplicate policy OIDs are illegal: reject if matches
+		 * found.
+		 */
+		if (OBJ_obj2nid(data->valid_policy) == NID_any_policy)
+			{
+			if (cache->anyPolicy)
+				{
+				ret = -1;
+				goto bad_policy;
+				}
+			cache->anyPolicy = data;
+			}
+		else if (sk_X509_POLICY_DATA_find(cache->data, data) != -1)
+			{
+			ret = -1;
+			goto bad_policy;
+			}
+		else if (!sk_X509_POLICY_DATA_push(cache->data, data))
+			goto bad_policy;
+		data = NULL;
+		}
+	ret = 1;
+	bad_policy:
+	if (ret == -1)
+		x->ex_flags |= EXFLAG_INVALID_POLICY;
+	if (data)
+		policy_data_free(data);
+	sk_POLICYINFO_pop_free(policies, POLICYINFO_free);
+	if (ret <= 0)
+		{
+		sk_X509_POLICY_DATA_pop_free(cache->data, policy_data_free);
+		cache->data = NULL;
+		}
+	return ret;
+	}
+
+	
+static int policy_cache_new(X509 *x)
+	{
+	X509_POLICY_CACHE *cache;
+	ASN1_INTEGER *ext_any = NULL;
+	POLICY_CONSTRAINTS *ext_pcons = NULL;
+	CERTIFICATEPOLICIES *ext_cpols = NULL;
+	POLICY_MAPPINGS *ext_pmaps = NULL;
+	int i;
+	cache = OPENSSL_malloc(sizeof(X509_POLICY_CACHE));
+	if (!cache)
+		return 0;
+	cache->anyPolicy = NULL;
+	cache->data = NULL;
+	cache->any_skip = -1;
+	cache->explicit_skip = -1;
+	cache->map_skip = -1;
+
+	x->policy_cache = cache;
+
+	/* Handle requireExplicitPolicy *first*. Need to process this
+	 * even if we don't have any policies.
+	 */
+	ext_pcons = X509_get_ext_d2i(x, NID_policy_constraints, &i, NULL);
+
+	if (!ext_pcons)
+		{
+		if (i != -1)
+			goto bad_cache;
+		}
+	else
+		{
+		if (!ext_pcons->requireExplicitPolicy
+			&& !ext_pcons->inhibitPolicyMapping)
+			goto bad_cache;
+		if (!policy_cache_set_int(&cache->explicit_skip,
+			ext_pcons->requireExplicitPolicy))
+			goto bad_cache;
+		if (!policy_cache_set_int(&cache->map_skip,
+			ext_pcons->inhibitPolicyMapping))
+			goto bad_cache;
+		}
+
+	/* Process CertificatePolicies */
+
+	ext_cpols = X509_get_ext_d2i(x, NID_certificate_policies, &i, NULL);
+	/* If no CertificatePolicies extension or problem decoding then
+	 * there is no point continuing because the valid policies will be
+	 * NULL.
+	 */
+	if (!ext_cpols)
+		{
+		/* If not absent some problem with extension */
+		if (i != -1)
+			goto bad_cache;
+		return 1;
+		}
+
+	i = policy_cache_create(x, ext_cpols, i);
+
+	/* NB: ext_cpols freed by policy_cache_set_policies */
+
+	if (i <= 0)
+		return i;
+
+	ext_pmaps = X509_get_ext_d2i(x, NID_policy_mappings, &i, NULL);
+
+	if (!ext_pmaps)
+		{
+		/* If not absent some problem with extension */
+		if (i != -1)
+			goto bad_cache;
+		}
+	else
+		{
+		i = policy_cache_set_mapping(x, ext_pmaps);
+		if (i <= 0)
+			goto bad_cache;
+		}
+
+	ext_any = X509_get_ext_d2i(x, NID_inhibit_any_policy, &i, NULL);
+
+	if (!ext_any)
+		{
+		if (i != -1)
+			goto bad_cache;
+		}
+	else if (!policy_cache_set_int(&cache->any_skip, ext_any))
+			goto bad_cache;
+
+	if (0)
+		{
+		bad_cache:
+		x->ex_flags |= EXFLAG_INVALID_POLICY;
+		}
+
+	if(ext_pcons)
+		POLICY_CONSTRAINTS_free(ext_pcons);
+
+	if (ext_any)
+		ASN1_INTEGER_free(ext_any);
+
+	return 1;
+
+	
+}
+
+void policy_cache_free(X509_POLICY_CACHE *cache)
+	{
+	if (!cache)
+		return;
+	if (cache->anyPolicy)
+		policy_data_free(cache->anyPolicy);
+	if (cache->data)
+		sk_X509_POLICY_DATA_pop_free(cache->data, policy_data_free);
+	OPENSSL_free(cache);
+	}
+
+const X509_POLICY_CACHE *policy_cache_set(X509 *x)
+	{
+
+	if (x->policy_cache == NULL)
+		{
+		CRYPTO_w_lock(CRYPTO_LOCK_X509);
+			policy_cache_new(x);
+		CRYPTO_w_unlock(CRYPTO_LOCK_X509);
+		}
+
+	return x->policy_cache;
+
+	}
+
+X509_POLICY_DATA *policy_cache_find_data(const X509_POLICY_CACHE *cache,
+						const ASN1_OBJECT *id)
+	{
+	int idx;
+	X509_POLICY_DATA tmp;
+	tmp.valid_policy = (ASN1_OBJECT *)id;
+	idx = sk_X509_POLICY_DATA_find(cache->data, &tmp);
+	if (idx == -1)
+		return NULL;
+	return sk_X509_POLICY_DATA_value(cache->data, idx);
+	}
+
+static int policy_data_cmp(const X509_POLICY_DATA * const *a,
+				const X509_POLICY_DATA * const *b)
+	{
+	return OBJ_cmp((*a)->valid_policy, (*b)->valid_policy);
+	}
+
+static int policy_cache_set_int(long *out, ASN1_INTEGER *value)
+	{
+	if (value == NULL)
+		return 1;
+	if (value->type == V_ASN1_NEG_INTEGER)
+		return 0;
+	*out = ASN1_INTEGER_get(value);
+	return 1;
+	}