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-rw-r--r--include/mbedtls/platform_time.h79
1 files changed, 79 insertions, 0 deletions
diff --git a/include/mbedtls/platform_time.h b/include/mbedtls/platform_time.h
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+/**
+ * \file platform_time.h
+ *
+ * \brief Mbed TLS Platform time abstraction
+ */
+/*
+ * Copyright The Mbed TLS Contributors
+ * SPDX-License-Identifier: Apache-2.0 OR GPL-2.0-or-later
+ */
+#ifndef MBEDTLS_PLATFORM_TIME_H
+#define MBEDTLS_PLATFORM_TIME_H
+
+#include "mbedtls/build_info.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/*
+ * The time_t datatype
+ */
+#if defined(MBEDTLS_PLATFORM_TIME_TYPE_MACRO)
+typedef MBEDTLS_PLATFORM_TIME_TYPE_MACRO mbedtls_time_t;
+#else
+/* For time_t */
+#include <time.h>
+typedef time_t mbedtls_time_t;
+#endif /* MBEDTLS_PLATFORM_TIME_TYPE_MACRO */
+
+#if defined(MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO)
+typedef MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO mbedtls_ms_time_t;
+#else
+#include <stdint.h>
+#include <inttypes.h>
+typedef int64_t mbedtls_ms_time_t;
+#endif /* MBEDTLS_PLATFORM_MS_TIME_TYPE_MACRO */
+
+/**
+ * \brief Get time in milliseconds.
+ *
+ * \return Monotonically-increasing current time in milliseconds.
+ *
+ * \note Define MBEDTLS_PLATFORM_MS_TIME_ALT to be able to provide an
+ * alternative implementation
+ *
+ * \warning This function returns a monotonically-increasing time value from a
+ * start time that will differ from platform to platform, and possibly
+ * from run to run of the process.
+ *
+ */
+mbedtls_ms_time_t mbedtls_ms_time(void);
+
+/*
+ * The function pointers for time
+ */
+#if defined(MBEDTLS_PLATFORM_TIME_ALT)
+extern mbedtls_time_t (*mbedtls_time)(mbedtls_time_t *time);
+
+/**
+ * \brief Set your own time function pointer
+ *
+ * \param time_func the time function implementation
+ *
+ * \return 0
+ */
+int mbedtls_platform_set_time(mbedtls_time_t (*time_func)(mbedtls_time_t *time));
+#else
+#if defined(MBEDTLS_PLATFORM_TIME_MACRO)
+#define mbedtls_time MBEDTLS_PLATFORM_TIME_MACRO
+#else
+#define mbedtls_time time
+#endif /* MBEDTLS_PLATFORM_TIME_MACRO */
+#endif /* MBEDTLS_PLATFORM_TIME_ALT */
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* platform_time.h */