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stm32/mbedtls: Enable mbedtls certificate time validation. 

This is a reimplementation of b560b9fe71 for
the stm32 port.
This commit is contained in:
iabdalkader 2022-10-10 19:41:33 +02:00 committed by Damien George
parent 9d0aefe719
commit efe7dac0aa
2 changed files with 45 additions and 0 deletions
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9
ports/stm32/mbedtls/mbedtls_config.h
View File

@ -26,6 +26,15 @@
#ifndef MICROPY_INCLUDED_MBEDTLS_CONFIG_H
#define MICROPY_INCLUDED_MBEDTLS_CONFIG_H
// Enable mbedtls modules.
#define MBEDTLS_HAVE_TIME
#define MBEDTLS_HAVE_TIME_DATE
// Time hook.
#include <time.h>
extern time_t stm32_rtctime_seconds(time_t *timer);
#define MBEDTLS_PLATFORM_TIME_MACRO stm32_rtctime_seconds
// Set MicroPython-specific options.
#define MICROPY_MBEDTLS_CONFIG_BARE_METAL (1)

36
ports/stm32/mbedtls/mbedtls_port.c
View File

@ -27,6 +27,11 @@
#include "rng.h"
#include "mbedtls_config.h"
#if defined(MBEDTLS_HAVE_TIME) || defined(MBEDTLS_HAVE_TIME_DATE)
#include "rtc.h"
#include "shared/timeutils/timeutils.h"
#endif
int mbedtls_hardware_poll(void *data, unsigned char *output, size_t len, size_t *olen) {
uint32_t val = 0;
int n = 0;
@ -42,3 +47,34 @@ int mbedtls_hardware_poll(void *data, unsigned char *output, size_t len, size_t
}
return 0;
}
#if defined(MBEDTLS_HAVE_TIME)
time_t stm32_rtctime_seconds(time_t *timer) {
rtc_init_finalise();
RTC_DateTypeDef date;
RTC_TimeTypeDef time;
HAL_RTC_GetTime(&RTCHandle, &time, RTC_FORMAT_BIN);
HAL_RTC_GetDate(&RTCHandle, &date, RTC_FORMAT_BIN);
return timeutils_seconds_since_epoch(2000 + date.Year, date.Month, date.Date, time.Hours, time.Minutes, time.Seconds);
}
#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