FMIceLinkStunFingerprintAttribute Class Reference

Inherits from	FMIceLinkStunAttribute : NSObject
Declared in	FMIceLinkStunFingerprintAttribute.h FMIceLinkStunFingerprintAttribute.m

Overview

The FINGERPRINT attribute MAY be present in all STUN messages. The value of the attribute is computed as the CRC-32 of the STUN message up to (but excluding) the FINGERPRINT attribute itself, XOR'ed with the 32-bit value 0x5354554e (the XOR helps in cases where an application packet is also using CRC-32 in it). The 32-bit CRC is the one defined in ITU V.42 [ITU.V42.2002], which has a generator polynomial of x32+x26+x23+x22+x16+x12+x11+x10+x8+x7+x5+x4+x2+x+1. When present, the FINGERPRINT attribute MUST be the last attribute in the message, and thus will appear after MESSAGE-INTEGRITY.

`– description`

Returns a string that represents this instance.

@return A string that represents this instance.

- (NSString *)description

Discussion

Returns a string that represents this instance.

@return A string that represents this instance.

Declared In

FMIceLinkStunFingerprintAttribute.h

`+ fingerprintAttribute`

Initializes a new instance of the FMIceLinkStunFingerprintAttribute class.

+ (FMIceLinkStunFingerprintAttribute *)fingerprintAttribute

Discussion

Initializes a new instance of the FMIceLinkStunFingerprintAttribute class.

Declared In

FMIceLinkStunFingerprintAttribute.h

`– getValueLength`

Gets the length of the attribute value.

@return

- (int)getValueLength

Discussion

Gets the length of the attribute value.

@return

Declared In

FMIceLinkStunFingerprintAttribute.h

`– init`

Initializes a new instance of the FMIceLinkStunFingerprintAttribute class.

- (instancetype)init

Discussion

Initializes a new instance of the FMIceLinkStunFingerprintAttribute class.

Declared In

FMIceLinkStunFingerprintAttribute.h

`– messageBuffer`

Gets the message buffer.

- (FMIceLinkDataBuffer *)messageBuffer

Discussion

Gets the message buffer.

Declared In

FMIceLinkStunFingerprintAttribute.h

`+ readValueFromWithBuffer:offset:messageBuffer:`

Initializes a new instance of the FMIceLinkStunFingerprintAttribute class.

+ (FMIceLinkStunFingerprintAttribute *)readValueFromWithBuffer:(FMIceLinkDataBuffer *)buffer offset:(int)offset messageBuffer:(FMIceLinkDataBuffer *)messageBuffer

Parameters

`buffer`	The buffer.
`offset`	The offset.
`messageBuffer`	The message buffer thus far. @return

Discussion

Initializes a new instance of the FMIceLinkStunFingerprintAttribute class.

Declared In

FMIceLinkStunFingerprintAttribute.h

`– setMessageBuffer:`

Sets the message buffer.

- (void)setMessageBuffer:(FMIceLinkDataBuffer *)value

Discussion

Sets the message buffer.

Declared In

FMIceLinkStunFingerprintAttribute.h

`– typeValue`

Gets the type value.

- (int)typeValue

Discussion

Gets the type value.

Declared In

FMIceLinkStunFingerprintAttribute.h

`– writeValueToWithBuffer:offset:`

Writes the attribute value to a data buffer.

- (void)writeValueToWithBuffer:(FMIceLinkDataBuffer *)buffer offset:(int)offset

Parameters

`buffer`	The buffer.
`offset`	The offset.

Discussion

Writes the attribute value to a data buffer.

Declared In

FMIceLinkStunFingerprintAttribute.h