Struct NeedsInput 

pub struct NeedsInput { /* private fields */ }

More data needs to be processed to make progress.

Provide the data to Self::process().

This type dereferences to ConnectionOutputs. Individual outputs are None until they are learned during the handshake.

Implementations

impl NeedsInput

pub fn quic_transport_parameters(&self) -> Option<&[u8]>

Return the TLS-encoded transport parameters received from the peer.

While the transport parameters are available before the handshake completes, they cannot be fully trusted until then. Reliance on them should be minimized. Any tampering with the parameters will cause the handshake to fail.

pub fn zero_rtt_keys(&self) -> Option<DirectionalKeys>

Compute the keys for decrypting 0-RTT packets, if available.

pub fn server_name(&self) -> Option<&DnsName<'_>>

Retrieves the server name supplied by the client, if any.

pub fn process( self, input: &mut dyn TlsInputBuffer, output: &mut Vec<QuicEvent>, ) -> Result<ServerHandshake, Error>

Progress the handshake by receiving further unencrypted TLS handshake data.

The input should be ordered QUIC CRYPTO stream data for one encryption level.

Handshake data obtained from separate encryption levels should be supplied in separate calls.

How much of the input buffer is consumed is recorded by a call to TlsInputBuffer::discard(). Unconsumed data should be presented again on the next call.

An error from this function is fatal to the connection, as it consumes the NeedsInput object.

On success, this returns:

• a ServerHandshake::NeedsInput if more data is required.
• a ServerHandshake::Accepted if a whole ClientHello has been received, and a choice of ServerConfig is required to continue.
• a ServerHandshake::Complete if the handshake is complete.

output has any resulting handshake messages or key changes appended to it.

Methods from Deref<Target = ConnectionOutputs>

pub fn peer_identity(&self) -> Option<&VerifiedIdentity<'static>>

Retrieves the certificate chain or the raw public key used by the peer to authenticate.

This is made available for both full and resumed handshakes.

For clients, this is the identity of the server. For servers, this is the identity of the client, if client authentication was completed.

The return value is None until this value is available.

pub fn alpn_protocol(&self) -> Option<&ApplicationProtocol<'static>>

Retrieves the protocol agreed with the peer via ALPN.

A return value of None after handshake completion means no protocol was agreed (because no protocols were offered or accepted by the peer).

pub fn negotiated_cipher_suite(&self) -> Option<SupportedCipherSuite>

Retrieves the cipher suite agreed with the peer.

This returns None until the cipher suite is agreed.

pub fn negotiated_key_exchange_group( &self, ) -> Option<&'static dyn SupportedKxGroup>

Retrieves the key exchange group agreed with the peer.

This function may return None depending on the state of the connection, the type of handshake, and the protocol version.

If CommonState::is_handshaking() is true this function will return None. Similarly, if the ConnectionOutputs::handshake_kind() is HandshakeKind::Resumed and the ConnectionOutputs::protocol_version() is TLS 1.2, then no key exchange will have occurred and this function will return None.

pub fn protocol_version(&self) -> Option<ProtocolVersion>

Retrieves the protocol version agreed with the peer.

This returns None until the version is agreed.

pub fn extended_main_secret(&self) -> Option<bool>

Whether the Extended Main Secret extension was negotiated.

Returns:

• None until the handshake reaches the point where this is known.
• None for TLS 1.3, where the extension does not apply.
• Some(true) for TLS 1.2 if the extension was negotiated.
• Some(false) otherwise.

pub fn handshake_kind(&self) -> Option<HandshakeKind>

Which kind of handshake was performed.

This tells you whether the handshake was a resumption or not.

This will return None before it is known which sort of handshake occurred.

Trait Implementations

impl Debug for NeedsInput

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

Formats the value using the given formatter.

impl Deref for NeedsInput

type Target = ConnectionOutputs

The resulting type after dereferencing.

fn deref(&self) -> &Self::Target

Dereferences the value.