Struct Incomplete 

pub struct Incomplete<T> { /* private fields */ }

This is the baseline definition of the Incomplete struct, which wraps a PDU that does is still missing some values or content.

It’s mostly important when writing PDUs, because fields like checksum can only be computed after the payload becomes known. Also, the length of the underlying slice should be equal to the actual size for a complete PDU. To that end, whenever a variable-length payload is involved, the slice is shrunk to an exact fit. The particular ways of completing an Incomplete<T> are implemented for each specific PDU.

Implementations

impl<'a, T: NetworkBytes + Debug> Incomplete<EthernetFrame<'a, T>>

pub fn with_payload_len_unchecked( self, payload_len: usize, ) -> EthernetFrame<'a, T>

Completes the inner frame by shrinking it to its actual length.

Panics

This method panics if len is greater than the length of the inner byte sequence.

impl<'a, T: NetworkBytesMut + Debug> Incomplete<IPv4Packet<'a, T>>

An incomplete packet is one where the payload length has not been determined yet.

It can be transformed into an IPv4Packet by specifying the size of the payload, and shrinking the inner byte sequence to be as large as the packet itself (this includes setting the total length header field).

pub fn with_header_and_payload_len_unchecked( self, header_len: u8, payload_len: u16, compute_checksum: bool, ) -> IPv4Packet<'a, T>

Transforms self into an IPv4Packet based on the supplied header and payload length. May panic for invalid values of the input parameters.

Panics

This method may panic if the combination of header_len and payload_len is invalid, or any of the individual values are invalid.

pub fn with_options_and_payload_len_unchecked( self, options_len: u8, payload_len: u16, compute_checksum: bool, ) -> IPv4Packet<'a, T>

Transforms self into an IPv4Packet based on the supplied options and payload length.

Panics

This method may panic if the combination of options_len and payload_len is invalid, or any of the individual values are invalid.

pub fn with_payload_len_unchecked( self, payload_len: u16, compute_checksum: bool, ) -> IPv4Packet<'a, T>

Transforms self into an IPv4Packet based on the supplied payload length. May panic for invalid values of the input parameters.

Panics

This method may panic if the value of header_len is invalid.

impl<'a, T: NetworkBytesMut + Debug> Incomplete<TcpSegment<'a, T>>

pub fn finalize( self, src_port: u16, dst_port: u16, compute_checksum: Option<(Ipv4Addr, Ipv4Addr)>, ) -> TcpSegment<'a, T>

Transforms self into a TcpSegment<T> by specifying values for the source port, destination port, and (optionally) the information required to compute the TCP checksum.

impl<'a, T: NetworkBytesMut + Debug> Incomplete<UdpDatagram<'a, T>>

pub fn finalize( self, src_port: u16, dst_port: u16, compute_checksum: Option<(Ipv4Addr, Ipv4Addr)>, ) -> UdpDatagram<'a, T>

Transforms self into a UdpDatagram<T> by specifying values for the source port, destination port, and (optionally) the information required to compute the checksum.

impl<T: Debug> Incomplete<T>

pub fn inner(&self) -> &T

Returns a reference to the wrapped object.

pub fn inner_mut(&mut self) -> &mut T

Returns a mutable reference to the wrapped object.

Trait Implementations

impl<T: Debug> Debug for Incomplete<T>

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.