Struct retina_core::protocols::packet::tcp::Tcp

pub struct Tcp<'a> { /* private fields */ }

A TCP packet.

TCP options are not parsed by default.

Implementations

impl<'a> Tcp<'a>

pub fn src_port(&self) -> u16

Returns the sending port.

pub fn dst_port(&self) -> u16

Returns the receiving port.

pub fn seq_no(&self) -> u32

Returns the sequence number.

pub fn ack_no(&self) -> u32

Returns the acknowledgment number.

pub fn data_offset(&self) -> u8

Returns the header length measured in 32-bit words.

pub fn reserved(&self) -> u8

Returns the reserved bits.

pub fn data_offset_to_ns(&self) -> u8

Returns the 8-bit field containing the data offset, 3 reserved bits, and the nonce sum bit.

pub fn flags(&self) -> u8

Returns the 8-bit TCP flags.

pub fn window(&self) -> u16

Returns the size of the receive window in window size units.

pub fn checksum(&self) -> u16

Returns the 16-bit checksum field.

pub fn urgent_pointer(&self) -> u16

Returns the urgent pointer.

pub fn ns(&self) -> u8

Returns true if the (historical) nonce sum flag is set.

pub fn cwr(&self) -> u8

Returns true if the congestion window reduced flag is set.

pub fn ece(&self) -> u8

Returns true if the ECN-Echo flag is set.

pub fn urg(&self) -> u8

Returns true if the urgent pointer flag is set.

pub fn ack(&self) -> u8

Returns true if the acknowledgment flag is set.

pub fn psh(&self) -> u8

Returns true if the push flag is set.

pub fn rst(&self) -> u8

Returns true if the reset flag is set.

pub fn syn(&self) -> u8

Returns true if the synchronize flag is set.

pub fn fin(&self) -> u8

Returns true if the FIN flag is set.

pub fn synack(&self) -> u8

Returns true if both SYN and ACK flags are set.

Trait Implementations

impl<'a> Debug for Tcp<'a>

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

Formats the value using the given formatter.

impl<'a> Packet<'a> for Tcp<'a>

fn mbuf(&self) -> &Mbuf

Reference to the underlying packet buffer.

fn header_len(&self) -> usize

Offset from the beginning of the header to the start of the payload.

fn next_header_offset(&self) -> usize

Offset from the beginning of the packet buffer to the start of the payload.

fn next_header(&self) -> Option<usize>

Next level IANA protocol number.

fn parse_from(outer: &'a impl Packet<'a>) -> Result<Self>

where Self: Sized,

Parses a Packet from the outer encapsulating Packet’s payload.

fn parse_to<T: Packet<'a>>(&'a self) -> Result<T>

where Self: Sized,

Parses the Packet’s payload as a new Packet of type T.