Z-Wave Security Validation

Utility to verify if a frame should be discarded or kept based on its security level. More...

Collaboration diagram for Z-Wave Security Validation:

Functions
bool	zwave_security_validation_is_security_valid_for_support (zwave_controller_encapsulation_scheme_t minimal_scheme, const zwave_controller_connection_info_t *connection)
	Verifies if a frame supported by us can be accepted based on the security it was received on. More...
bool	zwave_security_validation_is_security_valid_for_control (const zwave_controller_connection_info_t *connection)
	Verifies if a frame supported by another node can be accepted based on the security it was received on. More...
bool	zwave_security_validation_is_s2_nif_downgrade_attack_detected (zwave_node_id_t node_id, const uint8_t *nif, uint8_t nif_length)
	Verifies if a the S2 Command Class has disappeared from the NIF, whereas it was reported as supported previously. More...

Detailed Description

Utility to verify if a frame should be discarded or kept based on its security level.

Function Documentation

zwave_security_validation_is_s2_nif_downgrade_attack_detected()

bool zwave_security_validation_is_s2_nif_downgrade_attack_detected	(	zwave_node_id_t	node_id,
		const uint8_t *	nif,
		uint8_t	nif_length
	)

Verifies if a the S2 Command Class has disappeared from the NIF, whereas it was reported as supported previously.

Parameters

node_id	The NodeID for which the NIF is processed.
nif	Raw byte array for the NIF.
nif_length	The length of the byte array.

Returns

True if the frame is accepted and should go through. False otherwise.

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zwave_security_validation_is_security_valid_for_control()

bool zwave_security_validation_is_security_valid_for_control

(

const zwave_controller_connection_info_t *

connection

)

Verifies if a frame supported by another node can be accepted based on the security it was received on.

Parameters

connection

Connection Info object to use for the remote node information.

Returns

True if the frame is accepted and should be accepted. False otherwise.

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zwave_security_validation_is_security_valid_for_support()

bool zwave_security_validation_is_security_valid_for_support	(	zwave_controller_encapsulation_scheme_t	minimal_scheme,
		const zwave_controller_connection_info_t *	connection
	)

Verifies if a frame supported by us can be accepted based on the security it was received on.

Parameters

minimal_scheme	The minimal security scheme that the Command Class handler has registered.
connection	Connection Info object to use for the remote node information.

Returns

True if the frame is accepted and should be accepted. False otherwise.

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