Struct retina_core::Mbuf

pub struct Mbuf { /* private fields */ }

A packet buffer.

This is a wrapper around a DPDK message buffer that represents a single Ethernet frame.

Implementations

impl Mbuf

pub fn data_len(&self) -> usize

Returns the length of the data in the Mbuf.

pub fn data(&self) -> &[u8]

Returns the contents of the Mbuf as a byte slice.

pub fn get_data_slice(&self, offset: usize, count: usize) -> Result<&[u8]>

Returns a byte slice of data with length count at offset.

Errors if offset is greater than or equal to the buffer length or count exceeds the size of the data stored at offset.

Trait Implementations

impl Clone for Mbuf

fn clone(&self) -> Mbuf

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for Mbuf

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

Formats the value using the given formatter.

impl Display for Mbuf

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

Formats the value using the given formatter.

impl Drop for Mbuf

fn drop(&mut self)

Executes the destructor for this type.

impl<'a> Packet<'a> for Mbuf

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.