Struct DecoderBufferMut

pub struct DecoderBufferMut<'a> { /* private fields */ }

A BPF-aware version of s2n_codec::DecoderBufferMut

The Linux BPF verifier requires that every pointer be checked against the end pointer. This means that it struggles with regular Rust slices that use ptr + len instead of ptr + end.

Implementations

impl<'a> DecoderBufferMut<'a>

pub unsafe fn new(start: *mut u8, end: *mut u8) -> Self

Creates a new DecoderBufferMut.

Safety

The start and end pointers must be a valid range of bytes, ideally directly coming from the BPF/XDP context argument.

pub fn decode<T: DecoderValueMut<'a>>(self) -> Result<(T, Self), DecoderError>

Decodes a T from the buffer, if possible

pub fn decode_slice(self, len: usize) -> Result<(Self, Self), DecoderError>

Decodes a slice of bytes with the given len, if possible

pub fn into_less_safe_slice(self) -> &'a mut [u8]

pub fn len(&self) -> usize

pub fn is_empty(&self) -> bool

Trait Implementations

impl<'a> Decoder<'a> for DecoderBufferMut<'a>

fn decode<T: DecoderValue<'a> + DecoderValueMut<'a>>( self, ) -> Result<(T, Self), DecoderError>

fn decode_slice(self, len: usize) -> Result<(Self, Self), DecoderError>