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Restructure cipher context object to contain driver switch

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Once an operation has been 'accepted' by a driver, the remainder is bound
to the same driver, since driver-specific context structs cannot be shared.
This provides a pretty good gate mechanism for the fallback logic, too.

Signed-off-by: Steven Cooreman <steven.cooreman@silabs.com>
This commit is contained in:
Steven Cooreman
2020-09-01 15:56:14 +02:00
parent 37941cb5e1
commit d3feccd3a5
3 changed files with 58 additions and 15 deletions
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3
include/psa/crypto_struct.h
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@ -158,6 +158,7 @@ struct psa_cipher_operation_s
unsigned int key_set : 1;
unsigned int iv_required : 1;
unsigned int iv_set : 1;
unsigned int accelerator_set : 1;
uint8_t iv_size;
uint8_t block_size;
union
@ -173,7 +174,7 @@ struct psa_cipher_operation_s
} ctx;
};
#define PSA_CIPHER_OPERATION_INIT {0, 0, 0, 0, 0, 0, {0}}
#define PSA_CIPHER_OPERATION_INIT {0, 0, 0, 0, 0, 0, 0, {0}}
static inline struct psa_cipher_operation_s psa_cipher_operation_init( void )
{
const struct psa_cipher_operation_s v = PSA_CIPHER_OPERATION_INIT;