first commit for opensource

2019-09-16 13:19:50 +08:00
parent 08ab013b8e
commit edb2879617
6303 changed files with 5472815 additions and 23 deletions
--- a/components/security/mbedtls/wrapper/include/timing_alt.h
+++ b/components/security/mbedtls/wrapper/include/timing_alt.h
@@ -0,0 +1,85 @@
+/**
+ * \file timing_alt.h
+ *
+ * \brief Portable interface to the CPU cycle counter
+ *
+ *  Copyright (C) 2006-2015, ARM Limited, All Rights Reserved
+ *  SPDX-License-Identifier: Apache-2.0
+ *
+ *  Licensed under the Apache License, Version 2.0 (the "License"); you may
+ *  not use this file except in compliance with the License.
+ *  You may obtain a copy of the License at
+ *
+ *  http://www.apache.org/licenses/LICENSE-2.0
+ *
+ *  Unless required by applicable law or agreed to in writing, software
+ *  distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+ *  WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ *  See the License for the specific language governing permissions and
+ *  limitations under the License.
+ *
+ *  This file is part of mbed TLS (https://tls.mbed.org)
+ */
+ 
+#ifndef _TIMING_ALT_H_
+#define  _TIMING_ALT_H_
+
+#if !defined(MBEDTLS_CONFIG_FILE)
+#include "config.h"
+#else
+#include MBEDTLS_CONFIG_FILE
+#endif
+
+#include "stdint.h"
+
+/**
+ * @brief   timer structure
+ */
+struct mbedtls_timing_hr_time {
+    uint64_t timer_ms;
+};
+
+/**
+ * @brief   Context for mbedtls_timing_set/get_delay()
+ */
+typedef struct {
+    struct mbedtls_timing_hr_time   timer;
+    uint32_t                        int_ms;
+    uint32_t                        fin_ms;
+} mbedtls_timing_delay_context;
+
+/**
+ * @brief   Return the elapsed time in milliseconds
+ *
+ * @param   val     points to a timer structure
+ * @param   reset   if set to 1, the timer is restarted
+ */
+unsigned long mbedtls_timing_get_timer(struct mbedtls_timing_hr_time *val, int reset);
+
+/**
+ * @brief   Set a pair of delays to watch
+ *          Must point to a valid mbedtls_timing_delay_context struct.
+ *
+ * @param   data    Pointer to timing data
+ * @param   int_ms  First (intermediate) delay in milliseconds.
+ * @param   fin_ms  Second (final) delay in milliseconds.
+ *                  Pass 0 to cancel the current delay.
+ */
+void mbedtls_timing_set_delay(void *data, uint32_t int_ms, uint32_t fin_ms);
+
+/**
+ * @brief   Get the status of delays
+ *          (Memory helper: number of delays passed.)
+ *
+ * @param   data    Pointer to timing data
+ *                  Must point to a valid mbedtls_timing_delay_context struct.
+ *
+ * @return  -1 if cancelled (fin_ms = 0)
+ *          0 if none of the delays are passed,
+ *          1 if only the intermediate delay is passed,
+ *          2 if the final delay is passed.
+ */
+int mbedtls_timing_get_delay(void *data);
+
+#endif
+