/*
-* Implementations of Certificate Transparency SCT policies.
-* Written by Rob Percival (robpercival@google.com) for the OpenSSL project.
-*/
-/* ====================================================================
-* Copyright (c) 2016 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.
-* ====================================================================
-*/
+ * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the Apache License 2.0 (the "License"). You may not use
+ * this file except in compliance with the License. You can obtain a copy
+ * in the file LICENSE in the source distribution or at
+ * https://www.openssl.org/source/license.html
+ */
#ifdef OPENSSL_NO_CT
# error "CT is disabled"
#include <openssl/ct.h>
#include <openssl/err.h>
+#include <time.h>
#include "ct_locl.h"
+/*
+ * Number of seconds in the future that an SCT timestamp can be, by default,
+ * without being considered invalid. This is added to time() when setting a
+ * default value for CT_POLICY_EVAL_CTX.epoch_time_in_ms.
+ * It can be overridden by calling CT_POLICY_EVAL_CTX_set_time().
+ */
+static const time_t SCT_CLOCK_DRIFT_TOLERANCE = 300;
+
CT_POLICY_EVAL_CTX *CT_POLICY_EVAL_CTX_new(void)
{
CT_POLICY_EVAL_CTX *ctx = OPENSSL_zalloc(sizeof(CT_POLICY_EVAL_CTX));
return NULL;
}
+ /* time(NULL) shouldn't ever fail, so don't bother checking for -1. */
+ ctx->epoch_time_in_ms = (uint64_t)(time(NULL) + SCT_CLOCK_DRIFT_TOLERANCE) *
+ 1000;
+
return ctx;
}
void CT_POLICY_EVAL_CTX_free(CT_POLICY_EVAL_CTX *ctx)
{
+ if (ctx == NULL)
+ return;
+ X509_free(ctx->cert);
+ X509_free(ctx->issuer);
OPENSSL_free(ctx);
}
-void CT_POLICY_EVAL_CTX_set0_cert(CT_POLICY_EVAL_CTX *ctx, X509 *cert)
+int CT_POLICY_EVAL_CTX_set1_cert(CT_POLICY_EVAL_CTX *ctx, X509 *cert)
{
+ if (!X509_up_ref(cert))
+ return 0;
ctx->cert = cert;
+ return 1;
}
-void CT_POLICY_EVAL_CTX_set0_issuer(CT_POLICY_EVAL_CTX *ctx, X509 *issuer)
+int CT_POLICY_EVAL_CTX_set1_issuer(CT_POLICY_EVAL_CTX *ctx, X509 *issuer)
{
+ if (!X509_up_ref(issuer))
+ return 0;
ctx->issuer = issuer;
+ return 1;
}
-void CT_POLICY_EVAL_CTX_set0_log_store(CT_POLICY_EVAL_CTX *ctx,
- CTLOG_STORE *log_store)
+void CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(CT_POLICY_EVAL_CTX *ctx,
+ CTLOG_STORE *log_store)
{
ctx->log_store = log_store;
}
+void CT_POLICY_EVAL_CTX_set_time(CT_POLICY_EVAL_CTX *ctx, uint64_t time_in_ms)
+{
+ ctx->epoch_time_in_ms = time_in_ms;
+}
+
X509* CT_POLICY_EVAL_CTX_get0_cert(const CT_POLICY_EVAL_CTX *ctx)
{
return ctx->cert;
return ctx->log_store;
}
+uint64_t CT_POLICY_EVAL_CTX_get_time(const CT_POLICY_EVAL_CTX *ctx)
+{
+ return ctx->epoch_time_in_ms;
+}