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stm32/mpconfigport.h: Seed the urandom module on import.

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For seeding the rng_get function is used, which is also the heart of
uos.urandom and pyb.rng, and is a hardware RNG where available.
This commit is contained in:
robert 2020-08-23 12:14:23 +02:00 committed by Damien George
parent 057193e855
commit 59019d7f75
1 changed files with 5 additions and 0 deletions
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5
ports/stm32/mpconfigport.h
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@ -79,6 +79,7 @@
#define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_FLOAT) #define MICROPY_FLOAT_IMPL (MICROPY_FLOAT_IMPL_FLOAT)
#endif #endif
#define MICROPY_STREAMS_NON_BLOCK (1) #define MICROPY_STREAMS_NON_BLOCK (1)
#define MICROPY_MODULE_BUILTIN_INIT (1)
#define MICROPY_MODULE_WEAK_LINKS (1) #define MICROPY_MODULE_WEAK_LINKS (1)
#define MICROPY_CAN_OVERRIDE_BUILTINS (1) #define MICROPY_CAN_OVERRIDE_BUILTINS (1)
#define MICROPY_USE_INTERNAL_ERRNO (1) #define MICROPY_USE_INTERNAL_ERRNO (1)
@ -167,6 +168,7 @@
#endif #endif
#ifndef MICROPY_PY_URANDOM #ifndef MICROPY_PY_URANDOM
#define MICROPY_PY_URANDOM (1) #define MICROPY_PY_URANDOM (1)
#define MICROPY_PY_URANDOM_SEED_INIT_FUNC (rng_get())
#endif #endif
#ifndef MICROPY_PY_URANDOM_EXTRA_FUNCS #ifndef MICROPY_PY_URANDOM_EXTRA_FUNCS
#define MICROPY_PY_URANDOM_EXTRA_FUNCS (1) #define MICROPY_PY_URANDOM_EXTRA_FUNCS (1)
@ -427,3 +429,6 @@ static inline mp_uint_t disable_irq(void) {
// We need to provide a declaration/definition of alloca() // We need to provide a declaration/definition of alloca()
#include <alloca.h> #include <alloca.h>
// Needed for MICROPY_PY_URANDOM_SEED_INIT_FUNC.
uint32_t rng_get(void);