Struct smoltcp::wire::TcpRepr

pub struct TcpRepr<'a> {
    pub src_port: u16,
    pub dst_port: u16,
    pub control: Control,
    pub seq_number: SeqNumber,
    pub ack_number: Option<SeqNumber>,
    pub window_len: u16,
    pub window_scale: Option<u8>,
    pub max_seg_size: Option<u16>,
    pub sack_permitted: bool,
    pub sack_ranges: [Option<(u32, u32)>; 3],
    pub payload: &'a [u8],
}

A high-level representation of a Transmission Control Protocol packet.

Fields

src_port: u16

dst_port: u16

control: Control

seq_number: SeqNumber

ack_number: Option<SeqNumber>

window_len: u16

window_scale: Option<u8>

max_seg_size: Option<u16>

sack_permitted: bool

sack_ranges: [Option<(u32, u32)>; 3]

payload: &'a [u8]

Implementations

impl<'a> Repr<'a>

pub fn parse<T: ?Sized>(
    packet: &Packet<&'a T>,
    src_addr: &IpAddress,
    dst_addr: &IpAddress,
    checksum_caps: &ChecksumCapabilities
) -> Result<Repr<'a>> where
    T: AsRef<[u8]>, 

Parse a Transmission Control Protocol packet and return a high-level representation.

pub fn header_len(&self) -> usize

Return the length of a header that will be emitted from this high-level representation.

This should be used for buffer space calculations. The TCP header length is a multiple of 4.

pub fn mss_header_len(&self) -> usize

Return the length of the header for the TCP protocol.

Per RFC 6691, this should be used for MSS calculations. It may be smaller than the buffer space required to accomodate this packet’s data.

pub fn buffer_len(&self) -> usize

Return the length of a packet that will be emitted from this high-level representation.

pub fn emit<T: ?Sized>(
    &self,
    packet: &mut Packet<&mut T>,
    src_addr: &IpAddress,
    dst_addr: &IpAddress,
    checksum_caps: &ChecksumCapabilities
) where
    T: AsRef<[u8]> + AsMut<[u8]>, 

Emit a high-level representation into a Transmission Control Protocol packet.

pub fn segment_len(&self) -> usize

Return the length of the segment, in terms of sequence space.

pub fn is_empty(&self) -> bool

Return whether the segment has no flags set (except PSH) and no data.

Trait Implementations

impl<'a> Clone for Repr<'a>

fn clone(&self) -> Repr<'a>

Returns a copy of the value.

pub fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl<'a> Copy for Repr<'a>

impl<'a> Debug for Repr<'a>

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

Formats the value using the given formatter.

impl<'a> Display for Repr<'a>

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

Formats the value using the given formatter.

impl<'a> Eq for Repr<'a>

impl<'a> PartialEq<Repr<'a>> for Repr<'a>

fn eq(&self, other: &Repr<'a>) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Repr<'a>) -> bool

This method tests for !=.

impl<'a> StructuralEq for Repr<'a>

impl<'a> StructuralPartialEq for Repr<'a>