Struct TransportParameters 

pub struct TransportParameters {

    pub max_idle_timeout: VarInt,
    pub max_udp_payload_size: VarInt,
    pub initial_max_data: VarInt,
    pub initial_max_stream_data_bidi_local: VarInt,
    pub initial_max_stream_data_bidi_remote: VarInt,
    pub initial_max_stream_data_uni: VarInt,
    pub initial_max_streams_bidi: VarInt,
    pub initial_max_streams_uni: VarInt,
    pub ack_delay_exponent: VarInt,
    pub max_ack_delay: VarInt,
    pub active_connection_id_limit: VarInt,
    pub disable_active_migration: bool,
    pub max_datagram_frame_size: Option<VarInt>,
    pub initial_src_cid: Option<ConnectionId>,
    pub grease_quic_bit: bool,
    pub min_ack_delay: Option<VarInt>,
    pub version_information: Option<VersionInformation>,
    pub original_dst_cid: Option<ConnectionId>,
    pub retry_src_cid: Option<ConnectionId>,
    pub stateless_reset_token: Option<ResetToken>,
    pub preferred_address: Option<PreferredAddress>,
    pub grease_transport_parameter: Option<ReservedTransportParameter>,
    pub extra: Vec<(u64, Vec<u8>)>,
    pub write_plan: Option<Vec<WriteSlot>>,
}

Available on crate feature quic only.

Transport parameters used to negotiate connection-level preferences between peers

Fields

max_idle_timeout: VarInt

Milliseconds, disabled if zero

max_udp_payload_size: VarInt

Limits the size of UDP payloads that the endpoint is willing to receive

initial_max_data: VarInt

Initial value for the maximum amount of data that can be sent on the connection

initial_max_stream_data_bidi_local: VarInt

Initial flow control limit for locally-initiated bidirectional streams

initial_max_stream_data_bidi_remote: VarInt

Initial flow control limit for peer-initiated bidirectional streams

initial_max_stream_data_uni: VarInt

Initial flow control limit for unidirectional streams

initial_max_streams_bidi: VarInt

Initial maximum number of bidirectional streams the peer may initiate

initial_max_streams_uni: VarInt

Initial maximum number of unidirectional streams the peer may initiate

ack_delay_exponent: VarInt

Exponent used to decode the ACK Delay field in the ACK frame

max_ack_delay: VarInt

Maximum amount of time in milliseconds by which the endpoint will delay sending acknowledgments

active_connection_id_limit: VarInt

Maximum number of connection IDs from the peer that an endpoint is willing to store

disable_active_migration: bool

Does the endpoint support active connection migration

max_datagram_frame_size: Option<VarInt>

Maximum size for datagram frames

initial_src_cid: Option<ConnectionId>

The value that the endpoint included in the Source Connection ID field of the first Initial packet it sends for the connection

grease_quic_bit: bool

The endpoint is willing to receive QUIC packets containing any value for the fixed bit

min_ack_delay: Option<VarInt>

Minimum amount of time in microseconds by which the endpoint is able to delay sending acknowledgments

If a value is provided, it implies that the endpoint supports QUIC Acknowledgement Frequency

version_information: Option<VersionInformation>

The version the endpoint chose and the versions it can work with (RFC 9368 §3)

original_dst_cid: Option<ConnectionId>

The value of the Destination Connection ID field from the first Initial packet sent by the client

retry_src_cid: Option<ConnectionId>

The value that the server included in the Source Connection ID field of a Retry packet

stateless_reset_token: Option<ResetToken>

Token used by the client to verify a stateless reset from the server

preferred_address: Option<PreferredAddress>

The server’s preferred address for communication after handshake completion

grease_transport_parameter: Option<ReservedTransportParameter>

The randomly generated reserved transport parameter to sustain future extensibility of transport parameter extensions. When present, it is included during serialization but ignored during deserialization.

extra: Vec<(u64, Vec<u8>)>

Parameters this crate does not interpret, written as given (a profile’s extras).

write_plan: Option<Vec<WriteSlot>>

The order in which transport parameters are serialized, one slot per parameter.

Set only for outgoing TransportParameters; None for received ones.

Implementations

impl TransportParameters

pub fn default() -> TransportParameters

Standard defaults, used if the peer does not supply a given parameter.

impl TransportParameters

pub fn plan(&self, order: &ParameterOrder, rng: &mut impl Rng) -> Vec<WriteSlot>

The order to write in: the profile’s, with what it does not name after it.

pub fn validate_resumption_from( &self, cached: &TransportParameters, ) -> Result<(), Error>

Check that these parameters are legal when resuming from certain cached parameters

impl TransportParameters

pub fn write<W>(&self, w: &mut W)

where W: BufMut,

Encode TransportParameters into buffer

pub fn read<R>(side: Side, r: &mut R) -> Result<TransportParameters, Error>

where R: Buf,

Decode the peer’s transport parameters. side is the local endpoint’s role.

Trait Implementations

impl<'arbitrary> Arbitrary<'arbitrary> for TransportParameters

Available on crate feature fuzz-utils only.

fn arbitrary( u: &mut Unstructured<'arbitrary>, ) -> Result<TransportParameters, Error>

Generate an arbitrary value of Self from the given unstructured data.

fn arbitrary_take_rest(u: Unstructured<'a>) -> Result<Self, Error>

Generate an arbitrary value of Self from the entirety of the given unstructured data.

fn size_hint(depth: usize) -> (usize, Option<usize>)

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

fn try_size_hint( depth: usize, ) -> Result<(usize, Option<usize>), MaxRecursionReached>

Get a size hint for how many bytes out of an Unstructured this type needs to construct itself.

impl Clone for TransportParameters

fn clone(&self) -> TransportParameters

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for TransportParameters

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

Formats the value using the given formatter.

impl Eq for TransportParameters

impl PartialEq for TransportParameters

fn eq(&self, other: &TransportParameters) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for TransportParameters