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Protect PSA drivers_initialized with mutex

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Writes to this in psa_crypto_init() were again already covered.

Signed-off-by: Paul Elliott <paul.elliott@arm.com>
This commit is contained in:
Paul Elliott 2024-02-23 17:47:42 +00:00
parent 8e15153637
commit 358165246b
1 changed files with 19 additions and 2 deletions
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21
library/psa_crypto.c
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@ -119,6 +119,23 @@ static uint8_t psa_get_initialized(void)
return initialized; return initialized;
} }
static uint8_t psa_get_drivers_initialized(void)
{
uint8_t initialized;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_lock(&mbedtls_threading_psa_globaldata_mutex);
#endif /* defined(MBEDTLS_THREADING_C) */
initialized = global_data.drivers_initialized;
#if defined(MBEDTLS_THREADING_C)
mbedtls_mutex_unlock(&mbedtls_threading_psa_globaldata_mutex);
#endif /* defined(MBEDTLS_THREADING_C) */
return initialized;
}
#define GUARD_MODULE_INITIALIZED \ #define GUARD_MODULE_INITIALIZED \
if (psa_get_initialized() == 0) \ if (psa_get_initialized() == 0) \
return PSA_ERROR_BAD_STATE; return PSA_ERROR_BAD_STATE;
@ -126,14 +143,14 @@ static uint8_t psa_get_initialized(void)
int psa_can_do_hash(psa_algorithm_t hash_alg) int psa_can_do_hash(psa_algorithm_t hash_alg)
{ {
(void) hash_alg; (void) hash_alg;
return global_data.drivers_initialized; return psa_get_drivers_initialized();
} }
int psa_can_do_cipher(psa_key_type_t key_type, psa_algorithm_t cipher_alg) int psa_can_do_cipher(psa_key_type_t key_type, psa_algorithm_t cipher_alg)
{ {
(void) key_type; (void) key_type;
(void) cipher_alg; (void) cipher_alg;
return global_data.drivers_initialized; return psa_get_drivers_initialized();
} }