Struct IcmpMessageBuffer

pub struct IcmpMessageBuffer { /* private fields */ }

A helper for constructing ICMP packets.

It’s an optional convenience for internal use in EncodeIcmpMessage implementations.

Implementations

impl IcmpMessageBuffer

pub fn new(typ: u8, code: u8, body: &[u8]) -> Self

Create a new buffer with the provided ICMP type typ, code, and body.

pub fn set_type(&mut self, typ: u8)

Set byte 0 with the ICMP message type

pub fn set_code(&mut self, code: u8)

Set byte 1 with the ICMP message code

pub fn body_mut(&mut self) -> &mut [u8]

Access the message body as a mutable slice.

pub fn set_body(&mut self, body: impl IntoIterator<Item = u8>)

Set the type-specific ICMP message body

pub fn extend_body(&mut self, body_suffix: impl IntoIterator<Item = u8>)

Append body_suffix to the buffer, leaving the existing body in place

pub fn truncate_body(&mut self, body_len: usize)

Truncate the message body at body_len bytes

pub fn calculate_icmpv4_checksum(&mut self)

Populate bytes 2-3 with the IPv4 ones complement checksum.

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

The entire buffer (ICMP header and body)