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Define key_slot_mutex

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Signed-off-by: Ryan Everett <ryan.everett@arm.com>
This commit is contained in:
Ryan Everett 2024-01-08 11:04:21 +00:00
parent fb133513d6
commit 491f7e5ac3
1 changed files with 17 additions and 0 deletions
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17
library/psa_crypto_slot_management.c
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@ -23,10 +23,27 @@
#include <stdlib.h> #include <stdlib.h>
#include <string.h> #include <string.h>
#include "mbedtls/platform.h" #include "mbedtls/platform.h"
#if defined(MBEDTLS_THREADING_C)
#include "mbedtls/threading.h"
#endif
typedef struct { typedef struct {
psa_key_slot_t key_slots[MBEDTLS_PSA_KEY_SLOT_COUNT]; psa_key_slot_t key_slots[MBEDTLS_PSA_KEY_SLOT_COUNT];
uint8_t key_slots_initialized; uint8_t key_slots_initialized;
#if defined(MBEDTLS_THREADING_C)
/*
* A mutex used to make the PSA subsystem thread safe.
*
* key_slot_mutex protects key_slots[i].registered_readers and
* key_slots[i].state for all valid i.
*
* This mutex must be held when any read from or write to a state or
* registered_readers field is performed, i.e. when calling functions:
* psa_key_slot_state_transition, psa_register_read, psa_unregister_read,
* psa_key_slot_has_readers and psa_wipe_key_slot. */
mbedtls_threading_mutex_t MBEDTLS_PRIVATE(key_slot_mutex);
#endif
} psa_global_data_t; } psa_global_data_t;
static psa_global_data_t global_data; static psa_global_data_t global_data;