Struct smoltcp::wire::Icmpv4Packet

pub struct Icmpv4Packet<T: AsRef<[u8]>> { /* fields omitted */ }

A read/write wrapper around an Internet Control Message Protocol version 4 packet buffer.

Methods

impl<T: AsRef<[u8]>> Packet<T>

fn new(buffer: T) -> Packet<T>

Imbue a raw octet buffer with ICMPv4 packet structure.

fn new_checked(buffer: T) -> Result<Packet<T>>

Shorthand for a combination of new and check_len.

fn check_len(&self) -> Result<()>

Ensure that no accessor method will panic if called. Returns Err(Error::Truncated) if the buffer is too short.

The result of this check is invalidated by calling set_header_len.

fn into_inner(self) -> T

Consume the packet, returning the underlying buffer.

fn msg_type(&self) -> Message

Return the message type field.

fn msg_code(&self) -> u8

Return the message code field.

fn checksum(&self) -> u16

Return the checksum field.

fn echo_ident(&self) -> u16

Return the identifier field (for echo request and reply packets).

Panics

This function may panic if this packet is not an echo request or reply packet.

fn echo_seq_no(&self) -> u16

Return the sequence number field (for echo request and reply packets).

Panics

This function may panic if this packet is not an echo request or reply packet.

fn header_len(&self) -> usize

Return the header length. The result depends on the value of the message type field.

fn verify_checksum(&self) -> bool

Validate the header checksum.

Fuzzing

This function always returns true when fuzzing.

impl<'a, T: AsRef<[u8]> + ?Sized> Packet<&'a T>

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

Return a pointer to the type-specific data.

impl<T: AsRef<[u8]> + AsMut<[u8]>> Packet<T>

fn set_msg_type(&mut self, value: Message)

Set the message type field.

fn set_msg_code(&mut self, value: u8)

Set the message code field.

fn set_checksum(&mut self, value: u16)

Set the checksum field.

fn set_echo_ident(&mut self, value: u16)

Set the identifier field (for echo request and reply packets).

Panics

This function may panic if this packet is not an echo request or reply packet.

fn set_echo_seq_no(&mut self, value: u16)

Set the sequence number field (for echo request and reply packets).

Panics

This function may panic if this packet is not an echo request or reply packet.

fn fill_checksum(&mut self)

Compute and fill in the header checksum.

impl<'a, T: AsRef<[u8]> + AsMut<[u8]> + ?Sized> Packet<&'a mut T>

fn data_mut(&mut self) -> &mut [u8]

Return a mutable pointer to the type-specific data.

Trait Implementations

impl<T: Debug + AsRef<[u8]>> Debug for Packet<T>

fn fmt(&self, __arg_0: &mut Formatter) -> Result

Formats the value using the given formatter.

impl<'a, T: AsRef<[u8]> + ?Sized> Display for Packet<&'a T>

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

Formats the value using the given formatter.

impl<T: AsRef<[u8]>> PrettyPrint for Packet<T>

fn pretty_print(
    buffer: &AsRef<[u8]>,
    f: &mut Formatter,
    indent: &mut PrettyIndent
) -> Result

Write a concise, formatted representation of a packet contained in the provided buffer, and any nested packets it may contain.