Struct ReadEarlyData 

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

Available on crate feature std only.

Allows reading of early data in resumed TLS1.3 connections.

“Early data” is also known as “0-RTT data”.

This type implements io::Read.

Implementations

impl<'a> ReadEarlyData<'a>

pub fn exporter(&mut self) -> Result<KeyingMaterialExporter, Error>

Returns the “early” exporter that can derive key material for use in early data

See RFC5705 for general details on what exporters are, and RFC8446 S7.5 for specific details on the “early” exporter.

Beware that the early exporter requires care, as it is subject to the same potential for replay as early data itself. See RFC8446 appendix E.5.1 for more detail.

This function can be called at most once per connection. This function will error: if called more than once per connection.

If you are looking for the normal exporter, this is available from ConnectionCommon::exporter().

Trait Implementations

impl Read for ReadEarlyData<'_>

fn read(&mut self, buf: &mut [u8]) -> Result<usize>

Pull some bytes from this source into the specified buffer, returning how many bytes were read.

fn read_vectored(&mut self, bufs: &mut [IoSliceMut<'_>]) -> Result<usize, Error>

Like read, except that it reads into a slice of buffers.

fn is_read_vectored(&self) -> bool

🔬This is a nightly-only experimental API. (can_vector)

Determines if this Reader has an efficient read_vectored implementation.

fn read_to_end(&mut self, buf: &mut Vec<u8>) -> Result<usize, Error>

Reads all bytes until EOF in this source, placing them into buf.

fn read_to_string(&mut self, buf: &mut String) -> Result<usize, Error>

Reads all bytes until EOF in this source, appending them to buf.

fn read_exact(&mut self, buf: &mut [u8]) -> Result<(), Error>

Reads the exact number of bytes required to fill buf.

fn read_buf(&mut self, buf: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)

Pull some bytes from this source into the specified buffer.

fn read_buf_exact(&mut self, cursor: BorrowedCursor<'_>) -> Result<(), Error>

🔬This is a nightly-only experimental API. (read_buf)

Reads the exact number of bytes required to fill cursor.

fn by_ref(&mut self) -> &mut Self

where Self: Sized,

Creates a “by reference” adapter for this instance of Read.

fn bytes(self) -> Bytes<Self>

where Self: Sized,

Transforms this Read instance to an Iterator over its bytes.

fn chain<R>(self, next: R) -> Chain<Self, R>

where R: Read, Self: Sized,

Creates an adapter which will chain this stream with another.

fn take(self, limit: u64) -> Take<Self>

where Self: Sized,

Creates an adapter which will read at most limit bytes from it.