bolos_core.h File Reference

BOLOS Input/Output for the TEE. More...

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Data Structures
struct	bls_area_s
	Describe a buffer and length data structure. More...

Typedefs
typedef struct bls_area_s	bls_area_t

Functions
void	bls_set_return (const void *addr, size_t length)
	send a result back to Normal World More...
size_t	bls_get_input_parameters_length (void)
	get the available size of Normal World input parameters More...
size_t	bls_copy_input_parameters (const uint8_t *parameters, uint32_t offset, size_t parametersLength)
	copy Normal World parameters to the executed code More...
uint32_t	bls_check_api_level (void)
	get the current API level More...
void	_exit (uint32_t status)
	halt executed code More...

Detailed Description

BOLOS Input/Output for the TEE.

Author

Ledger Firmware Team hello.nosp@m.@led.nosp@m.ger.f.nosp@m.r

Version

1.0

Date

29th of February 2016

Allow executed code to retrieve parameters and return results

This API is TEE / stateless device specific

Function Documentation

void _exit

(

uint32_t

status

)

halt executed code

Parameters

[in]

status

exit status (discarded)

uint32_t bls_check_api_level

(

void

)

get the current API level

Returns

API level

size_t bls_copy_input_parameters	(	const uint8_t *	parameters,
		uint32_t	offset,
		size_t	parametersLength
	)

copy Normal World parameters to the executed code

Parameters

[out]	parameters	buffer containing the parameter value
[in]	offset	offset to start copying the Normal World input parameters from
[in]	parametersLength	length of Normal World input parameters to copy

Returns

size of parameters copied

size_t bls_get_input_parameters_length

(

void

)

get the available size of Normal World input parameters

Returns

size of input parameters

void bls_set_return	(	const void *	addr,
		size_t	length
	)

send a result back to Normal World

Parameters

[in]	addr	the buffer containing the data to return
[in]	length	length of the data to return