154 lines
4.5 KiB
C
Executable File
154 lines
4.5 KiB
C
Executable File
/* $OpenBSD: ct_policy.c,v 1.5 2021/12/18 16:34:52 tb Exp $ */
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/*
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* Implementations of Certificate Transparency SCT policies.
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* Written by Rob Percival (robpercival@google.com) for the OpenSSL project.
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*/
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/* ====================================================================
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* Copyright (c) 2016 The OpenSSL Project. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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*
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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*
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* 3. All advertising materials mentioning features or use of this
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* software must display the following acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit. (http://www.OpenSSL.org/)"
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*
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* 4. The names "OpenSSL Toolkit" and "OpenSSL Project" must not be used to
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* endorse or promote products derived from this software without
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* prior written permission. For written permission, please contact
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* licensing@OpenSSL.org.
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*
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* 5. Products derived from this software may not be called "OpenSSL"
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* nor may "OpenSSL" appear in their names without prior written
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* permission of the OpenSSL Project.
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*
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* 6. Redistributions of any form whatsoever must retain the following
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* acknowledgment:
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* "This product includes software developed by the OpenSSL Project
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* for use in the OpenSSL Toolkit (http://www.OpenSSL.org/)"
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*
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* THIS SOFTWARE IS PROVIDED BY THE OpenSSL PROJECT ``AS IS'' AND ANY
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* EXPRESSED OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE OpenSSL PROJECT OR
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* ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
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* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
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* STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED
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* OF THE POSSIBILITY OF SUCH DAMAGE.
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* ====================================================================
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*/
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#ifdef OPENSSL_NO_CT
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# error "CT is disabled"
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#endif
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#include <openssl/ct.h>
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#include <openssl/err.h>
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#include <time.h>
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#include "ct_local.h"
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/*
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* Number of seconds in the future that an SCT timestamp can be, by default,
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* without being considered invalid. This is added to time() when setting a
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* default value for CT_POLICY_EVAL_CTX.epoch_time_in_ms.
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* It can be overridden by calling CT_POLICY_EVAL_CTX_set_time().
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*/
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static const time_t SCT_CLOCK_DRIFT_TOLERANCE = 300;
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CT_POLICY_EVAL_CTX *
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CT_POLICY_EVAL_CTX_new(void)
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{
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CT_POLICY_EVAL_CTX *ctx = calloc(1, sizeof(CT_POLICY_EVAL_CTX));
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if (ctx == NULL) {
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CTerror(ERR_R_MALLOC_FAILURE);
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return NULL;
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}
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/* time(NULL) shouldn't ever fail, so don't bother checking for -1. */
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ctx->epoch_time_in_ms = (uint64_t)(time(NULL) + SCT_CLOCK_DRIFT_TOLERANCE) *
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1000;
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return ctx;
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}
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void
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CT_POLICY_EVAL_CTX_free(CT_POLICY_EVAL_CTX *ctx)
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{
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if (ctx == NULL)
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return;
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X509_free(ctx->cert);
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X509_free(ctx->issuer);
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free(ctx);
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}
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int
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CT_POLICY_EVAL_CTX_set1_cert(CT_POLICY_EVAL_CTX *ctx, X509 *cert)
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{
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if (!X509_up_ref(cert))
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return 0;
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ctx->cert = cert;
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return 1;
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}
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int
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CT_POLICY_EVAL_CTX_set1_issuer(CT_POLICY_EVAL_CTX *ctx, X509 *issuer)
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{
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if (!X509_up_ref(issuer))
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return 0;
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ctx->issuer = issuer;
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return 1;
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}
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void
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CT_POLICY_EVAL_CTX_set_shared_CTLOG_STORE(CT_POLICY_EVAL_CTX *ctx,
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CTLOG_STORE *log_store)
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{
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ctx->log_store = log_store;
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}
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void
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CT_POLICY_EVAL_CTX_set_time(CT_POLICY_EVAL_CTX *ctx, uint64_t time_in_ms)
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{
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ctx->epoch_time_in_ms = time_in_ms;
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}
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X509 *
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CT_POLICY_EVAL_CTX_get0_cert(const CT_POLICY_EVAL_CTX *ctx)
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{
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return ctx->cert;
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}
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X509 *
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CT_POLICY_EVAL_CTX_get0_issuer(const CT_POLICY_EVAL_CTX *ctx)
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{
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return ctx->issuer;
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}
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const CTLOG_STORE *
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CT_POLICY_EVAL_CTX_get0_log_store(const CT_POLICY_EVAL_CTX *ctx)
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{
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return ctx->log_store;
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}
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uint64_t
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CT_POLICY_EVAL_CTX_get_time(const CT_POLICY_EVAL_CTX *ctx)
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{
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return ctx->epoch_time_in_ms;
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}
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