Struct Ipv4PacketRaw

pub struct Ipv4PacketRaw<B> { /* private fields */ }

A partially parsed and not yet validated IPv4 packet.

Ipv4PacketRaw provides minimal parsing of an IPv4 packet, namely it only requires that the fixed header part (HeaderPrefix) be retrieved, all the other parts of the packet may be missing when attempting to create it.

Ipv4Packet provides a [FromRaw] implementation that can be used to validate an Ipv4PacketRaw.

Implementations

impl<B> Ipv4PacketRaw<B>

pub fn options(&self) -> &MaybeParsed<OptionsRaw<B, Ipv4OptionsImpl>, B>

Gets the maybe parsed options from the raw packet.

impl<B: SplitByteSlice> Ipv4PacketRaw<B>

pub fn body(&self) -> MaybeParsed<&[u8], &[u8]>

Return the body.

body returns [MaybeParsed::Complete] if the entire body is present (as determined by the header’s “total length” and “internet header length” fields), and [MaybeParsed::Incomplete] otherwise.

pub fn into_body(self) -> MaybeParsed<B, B>

Consumes self returning the body.

See Ipv4PacketRaw::body for details on parsing completeness.

impl<B: SplitByteSliceMut> Ipv4PacketRaw<B>

pub fn set_src_ip_and_update_checksum(&mut self, addr: Ipv4Addr)

Set the source IP address.

Set the source IP address and update the header checksum accordingly.

pub fn set_dst_ip_and_update_checksum(&mut self, addr: Ipv4Addr)

Set the destination IP address.

Set the destination IP address and update the header checksum accordingly.

Trait Implementations

impl<B: SplitByteSlice> FromRaw<Ipv4PacketRaw<B>, ()> for Ipv4Packet<B>

type Error = IpParseError<Ipv4>

The type of error that may happen during validation.

fn try_from_raw_with( raw: Ipv4PacketRaw<B>, _args: (), ) -> Result<Self, Self::Error>

Attempts to create Self from the raw form in raw with args.

fn try_from_raw(raw: R) -> Result<Self, Self::Error>

where Self: FromRaw<R, (), Error = Self::Error>,

Attempts to create Self from the raw form in raw.

impl<B: SplitByteSlice> Ipv4Header for Ipv4PacketRaw<B>

fn get_header_prefix(&self) -> &HeaderPrefix

Gets a reference to the IPv4 HeaderPrefix.

fn dscp_and_ecn(&self) -> DscpAndEcn

The Differentiated Services Code Point (DSCP) and the Explicit Congestion Notification (ECN).

fn id(&self) -> u16

The identification.

fn df_flag(&self) -> bool

The Don’t Fragment (DF) flag.

fn mf_flag(&self) -> bool

The More Fragments (MF) flag.

fn fragment_offset(&self) -> FragmentOffset

The fragment offset.

fn fragment_type(&self) -> Ipv4FragmentType

The fragment type.

fn ttl(&self) -> u8

The Time To Live (TTL).

fn proto(&self) -> Ipv4Proto

The IP Protocol.

fn src_ip(&self) -> Ipv4Addr

The source IP address.

fn dst_ip(&self) -> Ipv4Addr

The destination IP address.

fn builder(&self) -> Ipv4PacketBuilder

Construct a builder with the same contents as this header.

impl<B: SplitByteSlice> ParsablePacket<B, ()> for Ipv4PacketRaw<B>

type Error = IpParseError<Ipv4>

The type of errors returned from parse and parse_mut.

fn parse_metadata(&self) -> ParseMetadata

Gets metadata about this packet required by [GrowBuffer::undo_parse].

fn parse<BV: BufferView<B>>(buffer: BV, _args: ()) -> IpParseResult<Ipv4, Self>

Parses a packet from a buffer.

fn parse_mut<BV>(buffer: BV, args: ParseArgs) -> Result<Self, Self::Error>

where BV: BufferViewMut<B>, B: SplitByteSliceMut,

Parses a packet from a mutable buffer.