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/*
* Copyright 2016-2020 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"
#endif
#include <openssl/ct.h>
#include <openssl/err.h>
#include "internal/time.h"
#include "ct_local.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_ex(OSSL_LIB_CTX *libctx,
const char *propq)
{
CT_POLICY_EVAL_CTX *ctx = OPENSSL_zalloc(sizeof(CT_POLICY_EVAL_CTX));
OSSL_TIME now;
if (ctx == NULL)
return NULL;
ctx->libctx = libctx;
if (propq != NULL) {
ctx->propq = OPENSSL_strdup(propq);
if (ctx->propq == NULL) {
OPENSSL_free(ctx);
return NULL;
}
}
now = ossl_time_add(ossl_time_now(),
ossl_seconds2time(SCT_CLOCK_DRIFT_TOLERANCE));
ctx->epoch_time_in_ms = ossl_time2ms(now);
return ctx;
}
CT_POLICY_EVAL_CTX *CT_POLICY_EVAL_CTX_new(void)
{
return CT_POLICY_EVAL_CTX_new_ex(NULL, NULL);
}
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->propq);
OPENSSL_free(ctx);
}
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;
}
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_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;
}
X509* CT_POLICY_EVAL_CTX_get0_issuer(const CT_POLICY_EVAL_CTX *ctx)
{
return ctx->issuer;
}
const CTLOG_STORE *CT_POLICY_EVAL_CTX_get0_log_store(const CT_POLICY_EVAL_CTX *ctx)
{
return ctx->log_store;
}
uint64_t CT_POLICY_EVAL_CTX_get_time(const CT_POLICY_EVAL_CTX *ctx)
{
return ctx->epoch_time_in_ms;
}
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