Struct etherparse::Ipv4HeaderSlice

pub struct Ipv4HeaderSlice<'a> { /* private fields */ }

A slice containing an ipv4 header of a network package.

Implementations

impl<'a> Ipv4HeaderSlice<'a>

pub fn from_slice(slice: &'a [u8]) -> Result<Ipv4HeaderSlice<'a>, ReadError>

Creates a slice containing an ipv4 header (including header options).

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

Returns the slice containing the ipv4 header

pub fn version(&self) -> u8

Read the “version” field of the IPv4 header (should be 4).

pub fn ihl(&self) -> u8

Read the “ip header length” (length of the ipv4 header + options in multiples of 4 bytes).

pub fn dcp(&self) -> u8

Read the “differentiated_services_code_point” from the slice.

pub fn ecn(&self) -> u8

Read the “explicit_congestion_notification” from the slice.

pub fn total_len(&self) -> u16

Read the “total length” from the slice (total length of ip header + payload).

pub fn payload_len(&self) -> u16

Determine the payload length based on the ihl & total_length field of the header.

pub fn identification(&self) -> u16

Read the “identification” field from the slice.

pub fn dont_fragment(&self) -> bool

Read the “dont fragment” flag from the slice.

pub fn more_fragments(&self) -> bool

Read the “more fragments” flag from the slice.

pub fn fragments_offset(&self) -> u16

Read the “fragment_offset” field from the slice.

pub fn ttl(&self) -> u8

Read the “time_to_live” field from the slice.

pub fn protocol(&self) -> u8

Read the “protocol” field from the slice.

pub fn header_checksum(&self) -> u16

Read the “header checksum” field from the slice.

pub fn source(&self) -> [u8; 4]

Returns a slice containing the ipv4 source address.

pub fn source_addr(&self) -> Ipv4Addr

Return the ipv4 source address as an std::net::Ipv4Addr

pub fn destination(&self) -> [u8; 4]

Returns a slice containing the ipv4 source address.

pub fn destination_addr(&self) -> Ipv4Addr

Return the ipv4 destination address as an std::net::Ipv4Addr

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

Returns a slice containing the ipv4 header options (empty when there are no options).

pub fn is_fragmenting_payload(&self) -> bool

Returns true if the payload is fragmented.

Either data is missing (more_fragments set) or there is an fragment offset.

pub fn to_header(&self) -> Ipv4Header

Decode all the fields and copy the results to a Ipv4Header struct

Trait Implementations

impl<'a> Clone for Ipv4HeaderSlice<'a>

fn clone(&self) -> Ipv4HeaderSlice<'a>

Returns a copy of the value.

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

Performs copy-assignment from source.

impl<'a> Debug for Ipv4HeaderSlice<'a>

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

Formats the value using the given formatter.

impl<'a> PartialEq<Ipv4HeaderSlice<'a>> for Ipv4HeaderSlice<'a>

fn eq(&self, other: &Ipv4HeaderSlice<'a>) -> bool

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

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl<'a> Eq for Ipv4HeaderSlice<'a>

impl<'a> StructuralEq for Ipv4HeaderSlice<'a>

impl<'a> StructuralPartialEq for Ipv4HeaderSlice<'a>