Plug n Trust Click Driver

API for configuring and manipulating Plug n Trust Click driver. More...

Topics
	Protocol Control Byte
	List of pcb of Plug n Trust Click driver.
	Plug n Trust Registers List
	List of registers of Plug n Trust Click driver.
	Plug n Trust Registers Settings
	Settings for registers of Plug n Trust Click driver.
	Plug n Trust MikroBUS Map
	MikroBUS pin mapping of Plug n Trust Click driver.

Functions
void	plugntrust_cfg_setup (plugntrust_cfg_t *cfg)
	Plug n Trust configuration object setup function.
err_t	plugntrust_init (plugntrust_t *ctx, plugntrust_cfg_t *cfg)
	Plug n Trust initialization function.
err_t	plugntrust_default_cfg (plugntrust_t *ctx)
	Plug n Trust default configuration function.
err_t	plugntrust_apdu_write (plugntrust_t *ctx, plugntrust_frame_data_t *frame_data)
	Writing frame data function.
err_t	plugntrust_apdu_read (plugntrust_t *ctx, plugntrust_frame_data_t *frame_data)
	Reading frame data function function.
err_t	plugntrust_apdu_transfer (plugntrust_t *ctx, plugntrust_frame_data_t *frame_data)
	Write-Read frame data function.
void	plugntrust_set_en (plugntrust_t *ctx, uint8_t state)
	Set Enable pin state.
void	plugntrust_set_rst (plugntrust_t *ctx, uint8_t state)
	Set Reset pin state.
void	plugntrust_reset (plugntrust_t *ctx)
	Reset function.
void	plugntrust_set_tlv_u8 (uint8_t *buf, uint8_t *buf_len, uint8_t tag, uint8_t value)
	Add TLV data of 1 byte value in payload buffer.
void	plugntrust_set_tlv_u16 (uint8_t *buf, uint8_t *buf_len, uint8_t tag, uint16_t value)
	Add TLV data of 2 bytes value in payload buffer.
void	plugntrust_set_tlv_u16_optional (uint8_t *buf, uint8_t *buf_len, uint8_t tag, uint16_t value)
	Add TLV data of 2 bytes value in payload buffer if value is greater then 0.
void	plugntrust_set_tlv_u32 (uint8_t *buf, uint8_t *buf_len, uint8_t tag, uint32_t value)
	Add TLV data of 4 bytes value in payload buffer.
err_t	plugntrust_set_tlv_u8buf (uint8_t *buf, uint8_t *buf_len, uint8_t tag, uint8_t *cmd, uint32_t cmd_len)
	Add TLV data buffer in payload buffer.
err_t	plugntrust_set_tlv_u8buf_optional (uint8_t *buf, uint8_t *buf_len, uint8_t tag, uint8_t *cmd, uint32_t cmd_len)
	Add TLV data buffer in payload buffer if TLV data buffer length greater then 0.
err_t	plugntrust_get_tlv_u8 (uint8_t *buf, uint32_t *buf_index, uint8_t tag, uint8_t *rsp)
	Parses TLV data from payload buffer to find data for desired tag.
err_t	plugntrust_get_tlv_u16 (uint8_t *buf, uint32_t *buf_index, uint8_t tag, uint16_t *rsp)
	Parses TLV data from payload buffer to find data for desired tag.
err_t	plugntrust_get_tlv_u8buf (uint8_t *buf, uint32_t *buf_index, uint8_t buf_len, uint8_t tag, uint8_t *rsp, uint32_t *rsp_len)
	Parses TLV data from payload buffer to find data for desired tag.
uint8_t	plugntrust_calculate_apdu_size (plugntrust_apdu_t *apdu_data)
	Calculates APDU object size.
err_t	plugntrust_end_apdu_session (plugntrust_t *ctx)
	Sends command for ending APDU session.
err_t	plugntrust_object_id_list (plugntrust_t *ctx, uint32_t *id_list, uint8_t *list_len)
	Reads all Object ID's from Applet.
err_t	plugntrust_sw_reset (plugntrust_t *ctx, plugntrust_atr_t *atr_data)
	Sends request to reset device and reads ATR data.
err_t	plugntrust_select_applet (plugntrust_t *ctx, uint8_t ns_encode, plugntrust_version_info_t *ver_info)
	Selects Clicks Applet and returns info that device sends back to host.
err_t	plugntrust_select_card_manager (plugntrust_t *ctx, uint8_t rsp, uint8_t *cardmanager_rsp, uint8_t *cardmanager_rsp_len)
	Select card manager.
err_t	plugntrust_get_free_memory (plugntrust_t *ctx, uint8_t memory_type, uint16_t *free_memory)
	Reads Applet free memory.
err_t	plugntrust_get_random_numbers (plugntrust_t *ctx, uint8_t *random_buf, uint8_t buf_len)
	Get random data.
err_t	plugntrust_check_object_exist (plugntrust_t *ctx, uint32_t object_id)
	Check if object exists.
err_t	plugntrust_delete_object (plugntrust_t *ctx, uint32_t object_id)
	Delete object.
err_t	plugntrust_read_object (plugntrust_t *ctx, uint32_t object_id, uint16_t offset, uint16_t read_len, uint8_t *data_buf, uint32_t *data_len)
	Read object data.
err_t	plugntrust_write_binary_object (plugntrust_t *ctx, uint32_t object_id, uint16_t offset, uint16_t data_len, uint8_t *data_buf)
	Create/Write to binary object.
err_t	plugntrust_get_applet_info (plugntrust_t *ctx, plugntrust_version_info_t *ver_info)
	Get Version info from Applet.

Detailed Description

API for configuring and manipulating Plug n Trust Click driver.

Any initialization code needed for MCU to function properly. Do not remove this line or clock might not be set correctly.

Function Documentation

plugntrust_apdu_read()

err_t plugntrust_apdu_read	(	plugntrust_t *	ctx,
		plugntrust_frame_data_t *	frame_data )

Reading frame data function function.

This function reads a frame_data from device.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[out]	frame_data	: Communication data. See plugntrust_frame_data_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

plugntrust_apdu_transfer()

err_t plugntrust_apdu_transfer	(	plugntrust_t *	ctx,
		plugntrust_frame_data_t *	frame_data )

Write-Read frame data function.

This function writes a frame_data and then reads return data from device and stores it in frame_data.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
	[in/out]	frame_data : Communication data. See plugntrust_frame_data_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

plugntrust_apdu_write()

err_t plugntrust_apdu_write	(	plugntrust_t *	ctx,
		plugntrust_frame_data_t *	frame_data )

Writing frame data function.

This function writes a frame_data to device.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	frame_data	: Communication data. See plugntrust_frame_data_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

plugntrust_calculate_apdu_size()

uint8_t plugntrust_calculate_apdu_size

(

plugntrust_apdu_t *

apdu_data

)

Calculates APDU object size.

Goes through apdu object and returns size value of it.

Parameters

[in]

apdu_data

: APDU object. See plugntrust_apdu_t object definition for detailed explanation.

Returns

Value size of APDU data object

Note

On the start return value is 4[CLA,INS,P1,P2] and then adds payload_len and rsp_len.

plugntrust_cfg_setup()

void plugntrust_cfg_setup

(

plugntrust_cfg_t *

cfg

)

Plug n Trust configuration object setup function.

This function initializes click configuration structure to initial values.

Parameters

[out]

cfg

: Click configuration structure. See plugntrust_cfg_t object definition for detailed explanation.

Returns

Nothing.

Note

The all used pins will be set to unconnected state.

plugntrust_check_object_exist()

err_t plugntrust_check_object_exist	(	plugntrust_t *	ctx,
		uint32_t	object_id )

Check if object exists.

Sends request to check if object with object_id exists.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	object_id	: Object ID.

Returns

• 1 - Does exists,
• 2 - Doesn't exist,
• -1 - Error. See #err_t definition for detailed explanation.

Note

Functions plugntrust_select_card_manager and plugntrust_select_applet needs to be called for this function to be successful. At the end of function it calls plugntrust_end_apdu_session function.

plugntrust_default_cfg()

err_t plugntrust_default_cfg

(

plugntrust_t *

ctx

)

Plug n Trust default configuration function.

This function executes a default configuration of Plug n Trust click board.

Parameters

[in]

ctx

: Click context object. See plugntrust_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

This function can consist any necessary configuration or setting to put device into operating mode.

plugntrust_delete_object()

err_t plugntrust_delete_object	(	plugntrust_t *	ctx,
		uint32_t	object_id )

Delete object.

Sends request to delete object with object_id.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	object_id	: Object ID.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

Functions plugntrust_select_card_manager and plugntrust_select_applet needs to be called for this function to be successful. At the end of function it calls plugntrust_end_apdu_session function.

plugntrust_end_apdu_session()

err_t plugntrust_end_apdu_session

(

plugntrust_t *

ctx

)

Sends command for ending APDU session.

This function sends SBLOCK request for ending APDU session.

Parameters

[in]

ctx

: Click context object. See plugntrust_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

plugntrust_get_applet_info()

err_t plugntrust_get_applet_info	(	plugntrust_t *	ctx,
		plugntrust_version_info_t *	ver_info )

Get Version info from Applet.

Sends request to read version info from Applet.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[out]	ver_info	: Version info data. See #ver_info object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

Functions plugntrust_select_card_manager and plugntrust_select_applet needs to be called for this function to be successful. At the end of function it calls plugntrust_end_apdu_session function.

plugntrust_get_free_memory()

err_t plugntrust_get_free_memory	(	plugntrust_t *	ctx,
		uint8_t	memory_type,
		uint16_t *	free_memory )

Reads Applet free memory.

Sends request to check free memory of memory_type.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	memory_type	: Memory type to check. See #Memory type definition for memory type options.
[out]	free_memory	: Response buffer.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

Functions plugntrust_select_card_manager and plugntrust_select_applet needs to be called for this function to be successful. At the end of function it calls plugntrust_end_apdu_session function.

plugntrust_get_random_numbers()

err_t plugntrust_get_random_numbers	(	plugntrust_t *	ctx,
		uint8_t *	random_buf,
		uint8_t	buf_len )

Get random data.

Sends request to get buff_len of random data.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[out]	random_buf	: Buffer to store random data.
[in]	buf_len	: Length of random buffer data.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

Functions plugntrust_select_card_manager and plugntrust_select_applet needs to be called for this function to be successful. At the end of function it calls plugntrust_end_apdu_session function.

plugntrust_get_tlv_u16()

err_t plugntrust_get_tlv_u16	(	uint8_t *	buf,
		uint32_t *	buf_index,
		uint8_t	tag,
		uint16_t *	rsp )

Parses TLV data from payload buffer to find data for desired tag.

Searches APDU payload response to find 2 bytes of value for desired tag.

Parameters

[in]	buf	: Input buffer.
	[in/out]	buf_index : Buffer index to search from.
[in]	tag	: Tag of TLV data.
[out]	rsp	: Value of TLV data.

Returns

• 0 - Data found,
• -1 - Data missing. See #err_t definition for detailed explanation.

Note

None.

Example

uint32_t buff_index = 0;
uint16_t value = 0;
plugntrust_get_tlv_u16( frame_data.apdu->payload, &parse_index, PLUGNTRUST_TLV_TAG_1, &value )

plugntrust_get_tlv_u8()

err_t plugntrust_get_tlv_u8	(	uint8_t *	buf,
		uint32_t *	buf_index,
		uint8_t	tag,
		uint8_t *	rsp )

Parses TLV data from payload buffer to find data for desired tag.

Searches APDU payload response to find 1 byte of value for desired tag.

Parameters

[in]	buf	: Input buffer.
	[in/out]	buf_index : Buffer index to search from.
[in]	tag	: Tag of TLV data.
[out]	rsp	: Value of TLV data.

Returns

• 0 - Data found,
• -1 - Data missing. See #err_t definition for detailed explanation.

Note

None.

Example

uint32_t buff_index = 0;
uint8_t value = 0;
plugntrust_get_tlv_u8( frame_data.apdu->payload, &parse_index, PLUGNTRUST_TLV_TAG_1, &value )

plugntrust_get_tlv_u8buf()

err_t plugntrust_get_tlv_u8buf	(	uint8_t *	buf,
		uint32_t *	buf_index,
		uint8_t	buf_len,
		uint8_t	tag,
		uint8_t *	rsp,
		uint32_t *	rsp_len )

Parses TLV data from payload buffer to find data for desired tag.

Searches APDU payload response to find 4 bytes of value for desired tag.

Parameters

[in]	buf	: Input buffer.
	[in/out]	buf_index : Buffer index to search from.
[in]	buf_len	: Input buffer length.
[in]	tag	: Tag of TLV data.
[out]	rsp	: Buffer of TLV data.
	[in/out]	rsp_len : Rsp buffer length.

Returns

• 0 - Data found,
• -1 - Error parssing data. See #err_t definition for detailed explanation.

Note

None.

Example

uint32_t buff_index = 0;
uint8_t parse_len = 0xFF;
uint8_t data_out[ 0xFF ] = 0;
plugntrust_get_tlv_u8buf( frame_data.apdu->payload, &parse_index, frame_data.len, 
                          PLUGNTRUST_TLV_TAG_1, data_out, &parse_len )

plugntrust_init()

err_t plugntrust_init	(	plugntrust_t *	ctx,
		plugntrust_cfg_t *	cfg )

Plug n Trust initialization function.

This function initializes all necessary pins and peripherals used for this click board.

Parameters

[out]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	cfg	: Click configuration structure. See plugntrust_cfg_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

plugntrust_object_id_list()

err_t plugntrust_object_id_list	(	plugntrust_t *	ctx,
		uint32_t *	id_list,
		uint8_t *	list_len )

Reads all Object ID's from Applet.

Reads list of all objects from Applet and outputs array of objects ID's.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[out]	id_list	: Buffer of Object ID's.
[out]	list_len	: Length of id_list.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

By default Applet has 26 predefined and reserved objects.

plugntrust_read_object()

err_t plugntrust_read_object	(	plugntrust_t *	ctx,
		uint32_t	object_id,
		uint16_t	offset,
		uint16_t	read_len,
		uint8_t *	data_buf,
		uint32_t *	data_len )

Read object data.

Sends request to read object data of object with object_id.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	object_id	: Object ID.
[in]	offset	: Offset read data OPTIONAL: set 0 if not needed.
[in]	read_len	: Length to be read OPTIONAL: set 0 to read full data from object.
[out]	data_buf	: Read data buffer.
[out]	data_len	: Length of read data bffer.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

Functions plugntrust_select_card_manager and plugntrust_select_applet needs to be called for this function to be successful. At the end of function it calls plugntrust_end_apdu_session function.

plugntrust_reset()

void plugntrust_reset

(

plugntrust_t *

ctx

)

Reset function.

Sets en pin to enable selected interface from ctx and then resets device by toggling rst pin.

Parameters

[in]

ctx

: Click context object. See plugntrust_t object definition for detailed explanation.

Returns

Nothing.

Note

None.

plugntrust_select_applet()

err_t plugntrust_select_applet	(	plugntrust_t *	ctx,
		uint8_t	ns_encode,
		plugntrust_version_info_t *	ver_info )

Selects Clicks Applet and returns info that device sends back to host.

Selects Clicks Applet and returns version info that device sens back to host.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	ns_encode	: NS encode of I-Block.
[out]	ver_info	: Version info data. See plugntrust_version_info_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

plugntrust_select_card_manager()

err_t plugntrust_select_card_manager	(	plugntrust_t *	ctx,
		uint8_t	rsp,
		uint8_t *	cardmanager_rsp,
		uint8_t *	cardmanager_rsp_len )

Select card manager.

Selects card manager and depending of rsp parameter returns data to host.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	rsp	: Request response from card manager.
[out]	cardmanager_rsp	: Response buffer.
[out]	cardmanager_rsp_len	: Length of response buffer.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

plugntrust_set_en()

void plugntrust_set_en	(	plugntrust_t *	ctx,
		uint8_t	state )

Set Enable pin state.

This function sets en pin state.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	state	: Logic state.

Returns

Nothing.

Note

None.

plugntrust_set_rst()

void plugntrust_set_rst	(	plugntrust_t *	ctx,
		uint8_t	state )

Set Reset pin state.

This function sets rst pin state.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	state	: Logic state.

Returns

Nothing.

Note

None.

plugntrust_set_tlv_u16()

void plugntrust_set_tlv_u16	(	uint8_t *	buf,
		uint8_t *	buf_len,
		uint8_t	tag,
		uint16_t	value )

Add TLV data of 2 bytes value in payload buffer.

Concatenates TLV data in APDU payload for writing data to device.

Parameters

[out]	buf	: Output buffer.
[out]	buf_len	: Output buffer size, incresed by adding TLV.
[in]	tag	: Tag of TLV data.
[in]	value	: Value of TLV data.

Returns

Nothing.

Note

None.

Example

uint16_t offset = 0;
plugntrust_set_tlv_u16( frame_data.apdu->payload, &frame_data.apdu->payload_len, 
                        PLUGNTRUST_TLV_TAG_2, offset );

plugntrust_set_tlv_u16_optional()

void plugntrust_set_tlv_u16_optional	(	uint8_t *	buf,
		uint8_t *	buf_len,
		uint8_t	tag,
		uint16_t	value )

Add TLV data of 2 bytes value in payload buffer if value is greater then 0.

Calls plugntrust_set_tlv_u16 if value parameter is greater then 0.

Parameters

[out]	buf	: Output buffer.
[out]	buf_len	: Output buffer size, incresed by adding TLV.
[in]	tag	: Tag of TLV data.
[in]	value	: Value of TLV data.

Returns

Nothing.

Note

None.

Example

uint16_t offset = 10;
plugntrust_set_tlv_u16_optional( frame_data.apdu->payload, &frame_data.apdu->payload_len, 
                         PLUGNTRUST_TLV_TAG_2, offset );

plugntrust_set_tlv_u32()

void plugntrust_set_tlv_u32	(	uint8_t *	buf,
		uint8_t *	buf_len,
		uint8_t	tag,
		uint32_t	value )

Add TLV data of 4 bytes value in payload buffer.

Concatenates TLV data in APDU payload for writing data to device.

Parameters

[out]	buf	: Output buffer.
[out]	buf_len	: Output buffer size, incresed by adding TLV.
[in]	tag	: Tag of TLV data.
[in]	value	: Value of TLV data.

Returns

Nothing.

Note

None.

Example

uint32_t object_id = 0x12345678;
plugntrust_set_tlv_u32( frame_data.apdu->payload, &frame_data.apdu->payload_len, 
                         PLUGNTRUST_TLV_TAG_1, object_id );

plugntrust_set_tlv_u8()

void plugntrust_set_tlv_u8	(	uint8_t *	buf,
		uint8_t *	buf_len,
		uint8_t	tag,
		uint8_t	value )

Add TLV data of 1 byte value in payload buffer.

Concatenates TLV data in APDU payload for writing data to device.

Parameters

[out]	buf	: Output buffer.
[out]	buf_len	: Output buffer size, incresed by adding TLV.
[in]	tag	: Tag of TLV data.
[in]	value	: Value of TLV data.

Returns

Nothing.

Note

None.

Example

plugntrust_set_tlv_u8( frame_data.apdu->payload, &frame_data.apdu->payload_len, 
                        PLUGNTRUST_TLV_TAG_1, PLUGNTRUST_MEM_PERSISTENT );

plugntrust_set_tlv_u8buf()

err_t plugntrust_set_tlv_u8buf	(	uint8_t *	buf,
		uint8_t *	buf_len,
		uint8_t	tag,
		uint8_t *	cmd,
		uint32_t	cmd_len )

Add TLV data buffer in payload buffer.

Concatenates TLV data in APDU payload for writing data to device.

Parameters

[out]	buf	: Output buffer.
[out]	buf_len	: Output buffer size, incresed by adding TLV.
[in]	tag	: Tag of TLV data.
[in]	cmd	: TLV data buffer.
[in]	cmd_len	: TLV data buffer length.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

Example

#define AES_KEY_SIZE 16
uint8_t aes_key[ AES_KEY_SIZE ] = { 0 }
plugntrust_set_tlv_u8buf( frame_data.apdu->payload, &frame_data.apdu->payload_len, 
                         PLUGNTRUST_TLV_TAG_3, aes_key, AES_KEY_SIZE );

plugntrust_set_tlv_u8buf_optional()

err_t plugntrust_set_tlv_u8buf_optional	(	uint8_t *	buf,
		uint8_t *	buf_len,
		uint8_t	tag,
		uint8_t *	cmd,
		uint32_t	cmd_len )

Add TLV data buffer in payload buffer if TLV data buffer length greater then 0.

Calls plugntrust_set_tlv_u8buf if cmd_len parameter is greater then 0.

Parameters

[out]	buf	: Output buffer.
[out]	buf_len	: Output buffer size, incresed by adding TLV.
[in]	tag	: Tag of TLV data.
[in]	cmd	: TLV data buffer.
[in]	cmd_len	: TLV data buffer length.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

Example

#define AES_KEY_SIZE 16
uint8_t aes_key[ AES_KEY_SIZE ] = { 0 }
plugntrust_set_tlv_u8buf_optional( frame_data.apdu->payload, &frame_data.apdu->payload_len, 
                                   PLUGNTRUST_TLV_TAG_3, aes_key, AES_KEY_SIZE );

plugntrust_sw_reset()

err_t plugntrust_sw_reset	(	plugntrust_t *	ctx,
		plugntrust_atr_t *	atr_data )

Sends request to reset device and reads ATR data.

Sends request to reset device and parses and returns ATR data.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[out]	atr_data	: Output data after reset. See plugntrust_atr_t object definition for detailed explanation.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

None.

plugntrust_write_binary_object()

err_t plugntrust_write_binary_object	(	plugntrust_t *	ctx,
		uint32_t	object_id,
		uint16_t	offset,
		uint16_t	data_len,
		uint8_t *	data_buf )

Create/Write to binary object.

If binary object with object_id exist function will write data_buf to it. If binary object doesn't exist it will be created and then data will be written.

Parameters

[in]	ctx	: Click context object. See plugntrust_t object definition for detailed explanation.
[in]	object_id	: Object ID.
[in]	offset	: Offset of data to be written.
[in]	data_len	: Length of data to be written to binary object.
[in]	data_buf	: Buffer of data to be written to binary object.

Returns

• 0 - Success,
• -1 - Error. See #err_t definition for detailed explanation.

Note

Functions plugntrust_select_card_manager and plugntrust_select_applet needs to be called for this function to be successful. At the end of function it calls plugntrust_end_apdu_session function.