8000 ports/stm32: Enable mbedtls certificate time validation. · iabdalkader/micropython@00007ff · GitHub
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ports/stm32: Enable mbedtls certificate time validation.
* This is a reimplementation of micropython#8854 for the stm32 port.
1 parent 89b3207 commit 00007ff

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2 files changed

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‎ports/stm32/mbedtls/mbedtls_config.h

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@@ -85,6 +85,8 @@
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#define MBEDTLS_TLS_DEFAULT_ALLOW_SHA1_IN_KEY_EXCHANGE
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#define MBEDTLS_X509_CRT_PARSE_C
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#define MBEDTLS_X509_USE_C
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#define MBEDTLS_HAVE_TIME
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#define MBEDTLS_HAVE_TIME_DATE
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// Memory allocation hooks
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#include <stdlib.h>
@@ -95,6 +97,11 @@ void m_tracked_free(void *ptr);
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#define MBEDTLS_PLATFORM_STD_FREE m_tracked_free
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#define MBEDTLS_PLATFORM_SNPRINTF_MACRO snprintf
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// Time hook
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#include <time.h>
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extern time_t stm32_rtctime_seconds(time_t *timer);
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#define MBEDTLS_PLATFORM_TIME_MACRO stm32_rtctime_seconds
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#include "mbedtls/check_config.h"
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#endif /* MICROPY_INCLUDED_MBEDTLS_CONFIG_H */

‎ports/stm32/mbedtls/mbedtls_port.c

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@@ -26,6 +26,10 @@
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#include "rng.h"
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#include "mbedtls_config.h"
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#if defined(MBEDTLS_HAVE_TIME) || defined(MBEDTLS_HAVE_TIME_DATE)
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#include "rtc.h"
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#include "shared/timeutils/timeutils.h"
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#endif
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int mbedtls_hardware_poll(void *data, unsigned char *output, size_t len, size_t *olen) {
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uint32_t val = 0;
@@ -42,3 +46,34 @@ int mbedtls_hardware_poll(void *data, unsigned char *output, size_t len, size_t
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}
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return 0;
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}
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#if defined(MBEDTLS_HAVE_TIME)
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time_t stm32_rtctime_seconds(time_t *timer) {
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rtc_init_finalise();
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RTC_DateTypeDef date;
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RTC_TimeTypeDef time;
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HAL_RTC_GetTime(&RTCHandle, &time, RTC_FORMAT_BIN);
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HAL_RTC_GetDate(&RTCHandle, &date, RTC_FORMAT_BIN);
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return timeutils_seconds_since_epoch(2000 + date.Year, date.Month, date.Date, time.Hours, time.Minutes, time.Seconds);
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}
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#endif
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#if defined(MBEDTLS_HAVE_TIME_DATE)
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struct tm *gmtime(const time_t *timep) {
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static struct tm tm;
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timeutils_struct_time_t tm_buf = {0};
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timeutils_seconds_since_epoch_to_struct_time(*timep, &tm_buf);
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tm.tm_sec = tm_buf.tm_sec;
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tm.tm_min = tm_buf.tm_min;
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tm.tm_hour = tm_buf.tm_hour;
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tm.tm_mday = tm_buf.tm_mday;
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tm.tm_mon = tm_buf.tm_mon - 1;
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tm.tm_year = tm_buf.tm_year - 1900;
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tm.tm_wday = tm_buf.tm_wday;
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tm.tm_yday = tm_buf.tm_yday;
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tm.tm_isdst = -1;
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return &tm;
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}
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#endif

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