Struct pnet_packet::gre::GrePacket

pub struct GrePacket<'p> { /* private fields */ }

A structure enabling manipulation of on the wire packets

Implementations

impl<'a> GrePacket<'a>

pub fn new<'p>(packet: &'p [u8]) -> Option<GrePacket<'p>>

Constructs a new GrePacket. If the provided buffer is less than the minimum required packet size, this will return None.

pub fn owned(packet: Vec<u8>) -> Option<GrePacket<'static>>

Constructs a new GrePacket. If the provided buffer is less than the minimum required packet size, this will return None. With this constructor the GrePacket will own its own data and the underlying buffer will be dropped when the GrePacket is.

pub fn to_immutable<'p>(&'p self) -> GrePacket<'p>

Maps from a GrePacket to a GrePacket

pub fn consume_to_immutable(self) -> GrePacket<'a>

Maps from a GrePacket to a GrePacket while consuming the source

pub const fn minimum_packet_size() -> usize

The minimum size (in bytes) a packet of this type can be. It’s based on the total size of the fixed-size fields.

pub fn packet_size(_packet: &Gre) -> usize

The size (in bytes) of a Gre instance when converted into a byte-array

pub fn get_checksum_present(&self) -> u1

Get the checksum_present field.

pub fn get_routing_present(&self) -> u1

Get the routing_present field.

pub fn get_key_present(&self) -> u1

Get the key_present field.

pub fn get_sequence_present(&self) -> u1

Get the sequence_present field.

pub fn get_strict_source_route(&self) -> u1

Get the strict_source_route field.

pub fn get_recursion_control(&self) -> u3

Get the recursion_control field.

pub fn get_zero_flags(&self) -> u5

Get the zero_flags field.

pub fn get_version(&self) -> u3

Get the version field.

pub fn get_protocol_type(&self) -> u16be

Get the protocol_type field. This field is always stored big-endian within the struct, but this accessor returns host order.

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

Get the raw &u8 value of the checksum field, without copying

pub fn get_checksum(&self) -> Vec<U16BE>

Get the value of the checksum field (copies contents)

pub fn get_checksum_iter(&self) -> U16BEIterable<'_>

Get the value of the checksum field as iterator

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

Get the raw &u8 value of the offset field, without copying

pub fn get_offset(&self) -> Vec<U16BE>

Get the value of the offset field (copies contents)

pub fn get_offset_iter(&self) -> U16BEIterable<'_>

Get the value of the offset field as iterator

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

Get the raw &u8 value of the key field, without copying

pub fn get_key(&self) -> Vec<U32BE>

Get the value of the key field (copies contents)

pub fn get_key_iter(&self) -> U32BEIterable<'_>

Get the value of the key field as iterator

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

Get the raw &u8 value of the sequence field, without copying

pub fn get_sequence(&self) -> Vec<U32BE>

Get the value of the sequence field (copies contents)

pub fn get_sequence_iter(&self) -> U32BEIterable<'_>

Get the value of the sequence field as iterator

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

Get the raw &u8 value of the routing field, without copying

pub fn get_routing(&self) -> Vec<u8>

Get the value of the routing field (copies contents)

Trait Implementations

impl<'p> Debug for GrePacket<'p>

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

Formats the value using the given formatter.

impl<'p> FromPacket for GrePacket<'p>

type T = Gre

The type of the packet to convert from.

fn from_packet(&self) -> Gre

Converts a wire-format packet to #[packet] struct format.

impl<'a> Packet for GrePacket<'a>

fn packet<'p>(&'p self) -> &'p [u8]

Retrieve the underlying buffer for the packet.

fn payload<'p>(&'p self) -> &'p [u8]

Retrieve the payload for the packet.

impl<'a> PacketSize for GrePacket<'a>

fn packet_size(&self) -> usize

Get the calculated size of the packet.

impl<'p> PartialEq for GrePacket<'p>

fn eq(&self, other: &GrePacket<'p>) -> 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<'p> StructuralPartialEq for GrePacket<'p>