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Add validate_slot_number method to SE drivers
Pave the way for allowing the application to choose the slot number in a secure element, rather than always letting the driver choose.
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@ -833,6 +833,30 @@ typedef psa_status_t (*psa_drv_se_allocate_key_t)(
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const psa_key_attributes_t *attributes,
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psa_key_slot_number_t *key_slot);
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/** \brief A function that determines whether a slot number is valid
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* for a key.
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*
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* \param[in,out] drv_context The driver context structure.
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* \param[in] attributes Attributes of the key.
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* \param[in] key_slot Slot where the key is to be stored.
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*
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* \retval #PSA_SUCCESS
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* The given slot number is valid for a key with the given
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* attributes.
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* \retval #PSA_ERROR_INVALID_ARGUMENT
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* The given slot number is not valid for a key with the
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* given attributes. This includes the case where the slot
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* number is not valid at all.
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* \retval #PSA_ERROR_ALREADY_EXISTS
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* There is already a key with the specified slot number.
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* Drivers may choose to return this error from the key
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* creation function instead.
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*/
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typedef psa_status_t (*psa_drv_se_validate_slot_number_t)(
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psa_drv_se_context_t *drv_context,
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const psa_key_attributes_t *attributes,
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psa_key_slot_number_t key_slot);
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/** \brief A function that imports a key into a secure element in binary format
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*
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* This function can support any output from psa_export_key(). Refer to the
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@ -993,6 +1017,16 @@ typedef struct {
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* last call to this function had not taken place.
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*/
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psa_drv_se_allocate_key_t p_allocate;
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/** Function that checks the validity of a slot for a key.
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*
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* The core calls this function instead of
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* psa_drv_se_key_management_t::p_allocate to create
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* a key in a specific slot. It then calls the actual creation function
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* (such as psa_drv_se_key_management_t::p_import or
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* psa_drv_se_key_management_t::p_generate) or
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* psa_drv_se_key_management_t::p_destroy.
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*/
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psa_drv_se_validate_slot_number_t p_validate_slot_number;
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/** Function that performs a key import operation */
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psa_drv_se_import_key_t p_import;
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/** Function that performs a generation */
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