Struct packet_formats::icmp::IcmpPacket

pub struct IcmpPacket<I: IcmpIpExt, B: ByteSlice, M: IcmpMessage<I>> { /* private fields */ }

An ICMP packet.

An IcmpPacket shares its underlying memory with the byte slice it was parsed from, meaning that no copying or extra allocation is necessary.

Implementations

impl<I: IcmpIpExt, B: ByteSlice, M: IcmpMessage<I>> IcmpPacket<I, B, M>

pub fn message(&self) -> &M

Get the ICMP message.

pub fn body(&self) -> &M::Body<B>

Get the ICMP body.

pub fn code(&self) -> M::Code

Get the ICMP message code.

The code provides extra details about the message. Each message type has its own set of codes that are allowed.

pub fn builder( &self, src_ip: I::Addr, dst_ip: I::Addr ) -> IcmpPacketBuilder<I, M>

Construct a builder with the same contents as this packet.

impl<I: IcmpIpExt, B: ByteSlice, M: IcmpMessage<I, Body<B> = OriginalPacket<B>>> IcmpPacket<I, B, M>

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

Get the body of the packet that caused this ICMP message.

This ICMP message contains some of the bytes of the packet that caused this message to be emitted. original_packet_body returns as much of the body of that packet as is contained in this message. For IPv4, this is guaranteed to be 8 bytes. For IPv6, there are no guarantees about the length.

pub fn original_packet(&self) -> &OriginalPacket<B>

Returns the original packt that caused this ICMP message.

This ICMP message contains some of the bytes of the packet that caused this message to be emitted. original_packet returns as much of the body of that packet as is contained in this message. For IPv4, this is guaranteed to be 8 bytes. For IPv6, there are no guarantees about the length.

impl<B: ByteSlice, M: IcmpMessage<Ipv4, Body<B> = OriginalPacket<B>>> IcmpPacket<Ipv4, B, M>

pub fn with_original_packet<O, F: FnOnce(Result<Ipv4PacketRaw<&[u8]>, &[u8]>) -> O>( &self, f: F ) -> O

Attempt to partially parse the original packet as an IPv4 packet.

f will be invoked on the result of calling Ipv4PacketRaw::parse on the original packet.

impl<B: ByteSlice, M: IcmpMessage<Ipv6, Body<B> = OriginalPacket<B>>> IcmpPacket<Ipv6, B, M>

pub fn with_original_packet<O, F: FnOnce(Result<Ipv6PacketRaw<&[u8]>, &[u8]>) -> O>( &self, f: F ) -> O

Attempt to partially parse the original packet as an IPv6 packet.

f will be invoked on the result of calling Ipv6PacketRaw::parse on the original packet.

impl<I: IcmpIpExt, B: ByteSlice, M: IcmpMessage<I, Body<B> = Options<B>>> IcmpPacket<I, B, M>

pub fn ndp_options(&self) -> &Options<B>

Get the pared list of NDP options from the ICMP message.

Trait Implementations

impl<I: Debug + IcmpIpExt, B: Debug + ByteSlice, M: Debug + IcmpMessage<I>> Debug for IcmpPacket<I, B, M>

where M::Body<B>: Debug,

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

Formats the value using the given formatter.

impl<B: ByteSlice, I: IcmpIpExt, M: IcmpMessage<I>> FromRaw<IcmpPacketRaw<I, B, M>, IcmpParseArgs<<I as Ip>::Addr>> for IcmpPacket<I, B, M>

type Error = ParseError

The type of error that may happen during validation.

fn try_from_raw_with( raw: IcmpPacketRaw<I, B, M>, args: IcmpParseArgs<I::Addr> ) -> ParseResult<Self>

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

impl<B: ByteSlice, I: IcmpIpExt, M: IcmpMessage<I>> ParsablePacket<B, IcmpParseArgs<<I as Ip>::Addr>> for IcmpPacket<I, B, M>

type Error = ParseError

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: IcmpParseArgs<I::Addr> ) -> ParseResult<Self>

Parses a packet from a buffer.