--- /dev/null
+/* x509_vpm.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 <stdio.h>
+
+#include "cryptlib.h"
+#include <openssl/crypto.h>
+#include <openssl/lhash.h>
+#include <openssl/buffer.h>
+#include <openssl/x509.h>
+#include <openssl/x509v3.h>
+
+/* X509_VERIFY_PARAM functions */
+
+static void x509_verify_param_zero(X509_VERIFY_PARAM *param)
+ {
+ if (!param)
+ return;
+ param->name = NULL;
+ param->purpose = 0;
+ param->trust = 0;
+ /*param->inh_flags = X509_VP_FLAG_DEFAULT;*/
+ param->inh_flags = 0;
+ param->flags = 0;
+ param->depth = -1;
+ if (param->policies)
+ {
+ sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
+ param->policies = NULL;
+ }
+ }
+
+X509_VERIFY_PARAM *X509_VERIFY_PARAM_new(void)
+ {
+ X509_VERIFY_PARAM *param;
+ param = OPENSSL_malloc(sizeof(X509_VERIFY_PARAM));
+ memset(param, 0, sizeof(X509_VERIFY_PARAM));
+ x509_verify_param_zero(param);
+ return param;
+ }
+
+void X509_VERIFY_PARAM_free(X509_VERIFY_PARAM *param)
+ {
+ x509_verify_param_zero(param);
+ OPENSSL_free(param);
+ }
+
+/* This function determines how parameters are "inherited" from one structure
+ * to another. There are several different ways this can happen.
+ *
+ * 1. If a child structure needs to have its values initialized from a parent
+ * they are simply copied across. For example SSL_CTX copied to SSL.
+ * 2. If the structure should take on values only if they are currently unset.
+ * For example the values in an SSL structure will take appropriate value
+ * for SSL servers or clients but only if the application has not set new
+ * ones.
+ *
+ * The "inh_flags" field determines how this function behaves.
+ *
+ * Normally any values which are set in the default are not copied from the
+ * destination and verify flags are ORed together.
+ *
+ * If X509_VP_FLAG_DEFAULT is set then anything set in the source is copied
+ * to the destination. Effectively the values in "to" become default values
+ * which will be used only if nothing new is set in "from".
+ *
+ * If X509_VP_FLAG_OVERWRITE is set then all value are copied across whether
+ * they are set or not. Flags is still Ored though.
+ *
+ * If X509_VP_FLAG_RESET_FLAGS is set then the flags value is copied instead
+ * of ORed.
+ *
+ * If X509_VP_FLAG_LOCKED is set then no values are copied.
+ *
+ * If X509_VP_FLAG_ONCE is set then the current inh_flags setting is zeroed
+ * after the next call.
+ */
+
+/* Macro to test if a field should be copied from src to dest */
+
+#define test_x509_verify_param_copy(field, def) \
+ (to_overwrite || \
+ ((src->field != def) && (to_default || (dest->field == def))))
+
+/* Macro to test and copy a field if necessary */
+
+#define x509_verify_param_copy(field, def) \
+ if (test_x509_verify_param_copy(field, def)) \
+ dest->field = src->field
+
+
+int X509_VERIFY_PARAM_inherit(X509_VERIFY_PARAM *dest,
+ const X509_VERIFY_PARAM *src)
+ {
+ unsigned long inh_flags;
+ int to_default, to_overwrite;
+ if (!src)
+ return 1;
+ inh_flags = dest->inh_flags | src->inh_flags;
+
+ if (inh_flags & X509_VP_FLAG_ONCE)
+ dest->inh_flags = 0;
+
+ if (inh_flags & X509_VP_FLAG_LOCKED)
+ return 1;
+
+ if (inh_flags & X509_VP_FLAG_DEFAULT)
+ to_default = 1;
+ else
+ to_default = 0;
+
+ if (inh_flags & X509_VP_FLAG_OVERWRITE)
+ to_overwrite = 1;
+ else
+ to_overwrite = 0;
+
+ x509_verify_param_copy(purpose, 0);
+ x509_verify_param_copy(trust, 0);
+ x509_verify_param_copy(depth, -1);
+
+ /* If overwrite or check time not set, copy across */
+
+ if (to_overwrite || !(dest->flags & X509_V_FLAG_USE_CHECK_TIME))
+ {
+ dest->check_time = src->check_time;
+ dest->flags &= ~X509_V_FLAG_USE_CHECK_TIME;
+ /* Don't need to copy flag: that is done below */
+ }
+
+ if (inh_flags & X509_VP_FLAG_RESET_FLAGS)
+ dest->flags = 0;
+
+ dest->flags |= src->flags;
+
+ if (test_x509_verify_param_copy(policies, NULL))
+ {
+ if (!X509_VERIFY_PARAM_set1_policies(dest, src->policies))
+ return 0;
+ }
+
+ return 1;
+ }
+
+int X509_VERIFY_PARAM_set1(X509_VERIFY_PARAM *to,
+ const X509_VERIFY_PARAM *from)
+ {
+ unsigned long save_flags = to->inh_flags;
+ int ret;
+ to->inh_flags |= X509_VP_FLAG_DEFAULT;
+ ret = X509_VERIFY_PARAM_inherit(to, from);
+ to->inh_flags = save_flags;
+ return ret;
+ }
+
+int X509_VERIFY_PARAM_set1_name(X509_VERIFY_PARAM *param, const char *name)
+ {
+ if (param->name)
+ OPENSSL_free(param->name);
+ param->name = BUF_strdup(name);
+ if (param->name)
+ return 1;
+ return 0;
+ }
+
+int X509_VERIFY_PARAM_set_flags(X509_VERIFY_PARAM *param, unsigned long flags)
+ {
+ param->flags |= flags;
+ if (flags & X509_V_FLAG_POLICY_MASK)
+ param->flags |= X509_V_FLAG_POLICY_CHECK;
+ return 1;
+ }
+
+int X509_VERIFY_PARAM_clear_flags(X509_VERIFY_PARAM *param, unsigned long flags)
+ {
+ param->flags &= ~flags;
+ return 1;
+ }
+
+unsigned long X509_VERIFY_PARAM_get_flags(X509_VERIFY_PARAM *param)
+ {
+ return param->flags;
+ }
+
+int X509_VERIFY_PARAM_set_purpose(X509_VERIFY_PARAM *param, int purpose)
+ {
+ return X509_PURPOSE_set(¶m->purpose, purpose);
+ }
+
+int X509_VERIFY_PARAM_set_trust(X509_VERIFY_PARAM *param, int trust)
+ {
+ return X509_TRUST_set(¶m->trust, trust);
+ }
+
+void X509_VERIFY_PARAM_set_depth(X509_VERIFY_PARAM *param, int depth)
+ {
+ param->depth = depth;
+ }
+
+void X509_VERIFY_PARAM_set_time(X509_VERIFY_PARAM *param, time_t t)
+ {
+ param->check_time = t;
+ param->flags |= X509_V_FLAG_USE_CHECK_TIME;
+ }
+
+int X509_VERIFY_PARAM_add0_policy(X509_VERIFY_PARAM *param, ASN1_OBJECT *policy)
+ {
+ if (!param->policies)
+ {
+ param->policies = sk_ASN1_OBJECT_new_null();
+ if (!param->policies)
+ return 0;
+ }
+ if (!sk_ASN1_OBJECT_push(param->policies, policy))
+ return 0;
+ return 1;
+ }
+
+int X509_VERIFY_PARAM_set1_policies(X509_VERIFY_PARAM *param,
+ STACK_OF(ASN1_OBJECT) *policies)
+ {
+ int i;
+ ASN1_OBJECT *oid, *doid;
+ if (!param)
+ return 0;
+ if (param->policies)
+ sk_ASN1_OBJECT_pop_free(param->policies, ASN1_OBJECT_free);
+
+ if (!policies)
+ {
+ param->policies = NULL;
+ return 1;
+ }
+
+ param->policies = sk_ASN1_OBJECT_new_null();
+ if (!param->policies)
+ return 0;
+
+ for (i = 0; i < sk_ASN1_OBJECT_num(policies); i++)
+ {
+ oid = sk_ASN1_OBJECT_value(policies, i);
+ doid = OBJ_dup(oid);
+ if (!doid)
+ return 0;
+ if (!sk_ASN1_OBJECT_push(param->policies, doid))
+ {
+ ASN1_OBJECT_free(doid);
+ return 0;
+ }
+ }
+ param->flags |= X509_V_FLAG_POLICY_CHECK;
+ return 1;
+ }
+
+int X509_VERIFY_PARAM_get_depth(const X509_VERIFY_PARAM *param)
+ {
+ return param->depth;
+ }
+
+/* Default verify parameters: these are used for various
+ * applications and can be overridden by the user specified table.
+ * NB: the 'name' field *must* be in alphabetical order because it
+ * will be searched using OBJ_search.
+ */
+
+static const X509_VERIFY_PARAM default_table[] = {
+ {
+ "default", /* X509 default parameters */
+ 0, /* Check time */
+ 0, /* internal flags */
+ 0, /* flags */
+ 0, /* purpose */
+ 0, /* trust */
+ 100, /* depth */
+ NULL /* policies */
+ },
+ {
+ "pkcs7", /* S/MIME sign parameters */
+ 0, /* Check time */
+ 0, /* internal flags */
+ 0, /* flags */
+ X509_PURPOSE_SMIME_SIGN, /* purpose */
+ X509_TRUST_EMAIL, /* trust */
+ -1, /* depth */
+ NULL /* policies */
+ },
+ {
+ "smime_sign", /* S/MIME sign parameters */
+ 0, /* Check time */
+ 0, /* internal flags */
+ 0, /* flags */
+ X509_PURPOSE_SMIME_SIGN, /* purpose */
+ X509_TRUST_EMAIL, /* trust */
+ -1, /* depth */
+ NULL /* policies */
+ },
+ {
+ "ssl_client", /* SSL/TLS client parameters */
+ 0, /* Check time */
+ 0, /* internal flags */
+ 0, /* flags */
+ X509_PURPOSE_SSL_CLIENT, /* purpose */
+ X509_TRUST_SSL_CLIENT, /* trust */
+ -1, /* depth */
+ NULL /* policies */
+ },
+ {
+ "ssl_server", /* SSL/TLS server parameters */
+ 0, /* Check time */
+ 0, /* internal flags */
+ 0, /* flags */
+ X509_PURPOSE_SSL_SERVER, /* purpose */
+ X509_TRUST_SSL_SERVER, /* trust */
+ -1, /* depth */
+ NULL /* policies */
+ }};
+
+static STACK_OF(X509_VERIFY_PARAM) *param_table = NULL;
+
+static int table_cmp(const X509_VERIFY_PARAM *a, const X509_VERIFY_PARAM *b)
+
+ {
+ return strcmp(a->name, b->name);
+ }
+
+DECLARE_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM,
+ table);
+IMPLEMENT_OBJ_BSEARCH_CMP_FN(X509_VERIFY_PARAM, X509_VERIFY_PARAM,
+ table);
+
+static int param_cmp(const X509_VERIFY_PARAM * const *a,
+ const X509_VERIFY_PARAM * const *b)
+ {
+ return strcmp((*a)->name, (*b)->name);
+ }
+
+int X509_VERIFY_PARAM_add0_table(X509_VERIFY_PARAM *param)
+ {
+ int idx;
+ X509_VERIFY_PARAM *ptmp;
+ if (!param_table)
+ {
+ param_table = sk_X509_VERIFY_PARAM_new(param_cmp);
+ if (!param_table)
+ return 0;
+ }
+ else
+ {
+ idx = sk_X509_VERIFY_PARAM_find(param_table, param);
+ if (idx != -1)
+ {
+ ptmp = sk_X509_VERIFY_PARAM_value(param_table, idx);
+ X509_VERIFY_PARAM_free(ptmp);
+ (void)sk_X509_VERIFY_PARAM_delete(param_table, idx);
+ }
+ }
+ if (!sk_X509_VERIFY_PARAM_push(param_table, param))
+ return 0;
+ return 1;
+ }
+
+const X509_VERIFY_PARAM *X509_VERIFY_PARAM_lookup(const char *name)
+ {
+ int idx;
+ X509_VERIFY_PARAM pm;
+
+ pm.name = (char *)name;
+ if (param_table)
+ {
+ idx = sk_X509_VERIFY_PARAM_find(param_table, &pm);
+ if (idx != -1)
+ return sk_X509_VERIFY_PARAM_value(param_table, idx);
+ }
+ return OBJ_bsearch_table(&pm, default_table,
+ sizeof(default_table)/sizeof(X509_VERIFY_PARAM));
+ }
+
+void X509_VERIFY_PARAM_table_cleanup(void)
+ {
+ if (param_table)
+ sk_X509_VERIFY_PARAM_pop_free(param_table,
+ X509_VERIFY_PARAM_free);
+ param_table = NULL;
+ }
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