ChecksumPolynomialInfo Class Reference

Checksum Polynomial attributes. More...

Public Member Functions
def	ChecksumPolynomialInfo ( int polynomial=0x04C11DB7, int init_value=0xFFFFFFFF, int final_xor_value=0xFFFFFFFF, bool reflect_input=True, bool reflect_result=True -> None ) -> def
	Class initializer. More...

Public Attributes
	polynomial
	The polynomial to use for the CRC calculation. More...
	init_value
	The initial value to use for the CRC calculation. More...
	final_xor_value
	The final value to perform the exclusive or on the checksum. More...
	reflect_input
	Reflect the input (swap bit order). More...
	reflect_result
	Reflect the output (swap bit order). More...

Static Public Attributes
	int
	bool

Detailed Description

Checksum Polynomial attributes.

See also

packet.Packet.set_checksum_parameter()

packet.Packet.get_checksum_parameter_info()

packet.Packet.get_polynomial_info()

Constructor & Destructor Documentation

ChecksumPolynomialInfo()

(	polynomial	: int
		init_value	: int
		final_xor_value	: int
		reflect_input	: bool
		reflect_result	: bool
		)	-> None

Class initializer.

Parameters

[in]	polynomial	The polynomial to use for the CRC calculation. Typically written as 0x12345678. Only used if type is CT_GENERIC_CRC32.
[in]	init_value	The initial value to use for the CRC calculation. Typically 0 or 0xffffffff. Only used if type is CT_GENERIC_CRC32.
[in]	final_xor_value	The final value to perform the exclusive or on the checksum. Typically 0 or 0xffffffff. Only used if type is CT_GENERIC_CRC32.
[in]	reflect_input	Reflect the input (swap bit order). Only used if type is CT_GENERIC_CRC32.
[in]	reflect_result	Reflect the output (swap bit order). Only used if type is CT_GENERIC_CRC32.

Member Data Documentation

final_xor_value

The final value to perform the exclusive or on the checksum.

Typically 0 or 0xffffffff. Only used if type is CT_GENERIC_CRC32.

init_value

The initial value to use for the CRC calculation.

Typically 0 or 0xffffffff. Only used if type is CT_GENERIC_CRC32.

polynomial

The polynomial to use for the CRC calculation.

Typically written as 0x12345678. Only used if type is CT_GENERIC_CRC32.

reflect_input

Reflect the input (swap bit order).

Only used if type is CT_GENERIC_CRC32.

reflect_result

Reflect the output (swap bit order).

Only used if type is CT_GENERIC_CRC32.