circuitpython/ports/raspberrypi/mbedtls/mbedtls_port.c

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/*
* This file is part of the MicroPython project, http://micropython.org/
*
* The MIT License (MIT)
*
* Copyright (c) 2019 Damien P. George
*
* Permission is hereby granted, free of charge, to any person obtaining a copy
* of this software and associated documentation files (the "Software"), to deal
* in the Software without restriction, including without limitation the rights
* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
* copies of the Software, and to permit persons to whom the Software is
* furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
* THE SOFTWARE.
*/
#include <py/mpconfig.h>
#if CIRCUITPY_SSL_MBEDTLS
#include "mbedtls_config.h"
#include "mbedtls/entropy_poll.h"
#include "hardware/rtc.h"
#include "shared/timeutils/timeutils.h"
#include "shared-bindings/os/__init__.h"
extern uint8_t rosc_random_u8(size_t cycles);
int mbedtls_hardware_poll(void *data, unsigned char *output, size_t len, size_t *olen) {
*olen = len;
common_hal_os_urandom(data, len);
return 0;
}
time_t rp2_rtctime_seconds(time_t *timer) {
datetime_t t;
rtc_get_datetime(&t);
return timeutils_seconds_since_epoch(t.year, t.month, t.day, t.hour, t.min, t.sec);
}
#endif