Struct packet_crafter::headers::UdpHeader

pub struct UdpHeader { /* fields omitted */ }

Implementations

impl UdpHeader

pub fn get_src_port(&self) -> &u16

pub fn get_dst_port(&self) -> &u16

pub fn get_length(&self) -> &u16

pub fn get_checksum(&self) -> &u16

impl UdpHeader

pub fn set_src_port(&mut self, v: u16)

pub fn set_dst_port(&mut self, v: u16)

pub fn set_length(&mut self, v: u16)

pub fn set_checksum(&mut self, v: u16)

impl UdpHeader

pub fn new(src_port: u16, dst_port: u16) -> Self

Trait Implementations

impl Header for UdpHeader

fn make(self) -> PacketData

'cook' the header, returning it as a Vec<u8>. this function will calculate checksums, even though they will be over-written by the OS if the packet is sent 'down the wire', likewise with a lot of length fields and such.

fn parse(raw_data: &[u8]) -> Result<Box<Self>, ParseError>

parse() should never be run from a box, is hould only ever br un as ::parse(). this is just here to complete the implementation of Header onto boxed structs that implement header

fn get_proto(&self) -> Protocol

fn get_length(&self) -> u8

get the current length of the header in bytes. this usually just returns a fixed value as most headers dont have variable length, only really IP does and even then its rare for it to be > 20 bytes

fn get_min_length() -> u8

get the minimum length (in bytes) that this type of header can be

fn into_transport_header(&mut self) -> Option<&mut dyn TransportHeader>

attempts to coerce the header (a type which implements the Header trait) into a &mut dyn TransportHeader. Only returns Option::Some when the underlying concrete type is a UdpHeader or a TcpHeader

impl TransportHeader for UdpHeader

fn set_pseudo_header(&mut self, src_ip: [u8; 4], dst_ip: [u8; 4], data_len: u16)

Sets the values of an internal value which represents the pseudo header that is used when calculating the checksum. This method must be called before the make method, which is called when the header is added to the Packet with the add_header method. If the IP header is already present in the Packet when this one is added, then this method will be called in the add_header method, using the data from the IP header.