1 files changed, 98 insertions, 0 deletions

diff --git a/src/lib/libcrypto/ct/ct_policy.c b/src/lib/libcrypto/ct/ct_policy.c
new file mode 100644
index 0000000000..df66e8a494
--- /dev/null
+++ b/src/lib/libcrypto/ct/ct_policy.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright 2016 The OpenSSL Project Authors. All Rights Reserved.
+ *
+ * Licensed under the OpenSSL license (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 <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(void)
+{
+    CT_POLICY_EVAL_CTX *ctx = OPENSSL_zalloc(sizeof(CT_POLICY_EVAL_CTX));
+
+    if (ctx == NULL) {
+        CTerr(CT_F_CT_POLICY_EVAL_CTX_NEW, ERR_R_MALLOC_FAILURE);
+        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);
+}
+
+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;
+}