micropython/ports/mimxrt/mbedtls/mbedtls_port.c

78 lines
2.5 KiB
C

/*
* 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/runtime.h"
#ifdef MICROPY_SSL_MBEDTLS
#include "mbedtls_config.h"
#if defined(MBEDTLS_HAVE_TIME) || defined(MBEDTLS_HAVE_TIME_DATE)
#include "fsl_snvs_lp.h"
#include "shared/timeutils/timeutils.h"
#endif
void trng_random_data(unsigned char *output, size_t len);
int mbedtls_hardware_poll(void *data, unsigned char *output, size_t len, size_t *olen) {
// assumes that TRNG_Init was called during startup
*olen = len;
trng_random_data(output, len);
return 0;
}
#if defined(MBEDTLS_HAVE_TIME)
time_t mimxrt_rtctime_seconds(time_t *timer) {
// Get date and date in CPython order.
snvs_lp_srtc_datetime_t date;
SNVS_LP_SRTC_GetDatetime(SNVS, &date);
return timeutils_seconds_since_epoch(date.year, date.month, date.day, date.hour, date.minute, date.second);
}
#endif
#if defined(MBEDTLS_HAVE_TIME_DATE)
struct tm *gmtime(const time_t *timep) {
static struct tm tm;
timeutils_struct_time_t tm_buf = {0};
timeutils_seconds_since_epoch_to_struct_time(*timep, &tm_buf);
tm.tm_sec = tm_buf.tm_sec;
tm.tm_min = tm_buf.tm_min;
tm.tm_hour = tm_buf.tm_hour;
tm.tm_mday = tm_buf.tm_mday;
tm.tm_mon = tm_buf.tm_mon - 1;
tm.tm_year = tm_buf.tm_year - 1900;
tm.tm_wday = tm_buf.tm_wday;
tm.tm_yday = tm_buf.tm_yday;
tm.tm_isdst = -1;
return &tm;
}
#endif
#endif