Struct Ipv4Packet 

pub struct Ipv4Packet<'a> { /* private fields */ }

Zero-copy IPv4 packet parser.

Implementations

impl<'a> Ipv4Packet<'a>

pub fn new(buf: &'a [u8]) -> Option<Self>

Attempt to parse an IPv4 packet. Returns None if buf is shorter than the minimum header length, or if the IHL-declared header length exceeds buf.

pub fn as_bytes(&self) -> &'a [u8]

Raw bytes backing this packet.

pub fn version(&self) -> u8

pub fn ihl(&self) -> u8

pub fn dscp(&self) -> u8

pub fn ecn(&self) -> u8

pub fn total_length(&self) -> u16

pub fn identification(&self) -> u16

pub fn flags(&self) -> u8

pub fn dont_fragment(&self) -> bool

pub fn more_fragments(&self) -> bool

pub fn fragment_offset(&self) -> u16

pub fn ttl(&self) -> u8

pub fn protocol(&self) -> IpProtocol

pub fn checksum(&self) -> u16

pub fn source(&self) -> Ipv4Addr

pub fn destination(&self) -> Ipv4Addr

pub fn options(&self) -> &'a [u8]

IP options bytes (if any).

pub fn payload(&self) -> &'a [u8]

Payload following the IPv4 header.

pub fn header_length(&self) -> usize

Total header length in bytes (IHL × 4).

pub fn verify_checksum(&self) -> bool

Verify the IPv4 header checksum.

Trait Implementations

impl<'a> Clone for Ipv4Packet<'a>

fn clone(&self) -> Ipv4Packet<'a>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Ipv4Packet<'a>

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

Formats the value using the given formatter.