Enum ExtensionType

#[non_exhaustive]
pub enum ExtensionType {
    ServerName,
    MaxFragmentLength,
    ClientCertificateUrl,
    TrustedCAKeys,
    TruncatedHMAC,
    StatusRequest,
    UserMapping,
    ClientAuthz,
    ServerAuthz,
    CertificateType,
    EllipticCurves,
    ECPointFormats,
    SRP,
    SignatureAlgorithms,
    UseSRTP,
    Heartbeat,
    ALProtocolNegotiation,
    SCT,
    ClientCertificateType,
    ServerCertificateType,
    Padding,
    ExtendedMasterSecret,
    CompressCertificate,
    SessionTicket,
    PreSharedKey,
    EarlyData,
    SupportedVersions,
    Cookie,
    PSKKeyExchangeModes,
    TicketEarlyDataInfo,
    CertificateAuthorities,
    OIDFilters,
    PostHandshakeAuth,
    SignatureAlgorithmsCert,
    KeyShare,
    TransportParameters,
    NextProtocolNegotiation,
    ChannelId,
    RenegotiationInfo,
    TransportParametersDraft,
    EncryptedClientHello,
    EncryptedClientHelloOuterExtensions,
    Unknown(u16),
}

The ExtensionType TLS protocol enum. Values in this enum are taken from the various RFCs covering TLS, and are listed by IANA. The Unknown item is used when processing unrecognised ordinals.

Variants (Non-exhaustive)

Non-exhaustive enums could have additional variants added in future. Therefore, when matching against variants of non-exhaustive enums, an extra wildcard arm must be added to account for any future variants.

ServerName

MaxFragmentLength

ClientCertificateUrl

TrustedCAKeys

TruncatedHMAC

StatusRequest

UserMapping

ClientAuthz

ServerAuthz

CertificateType

EllipticCurves

ECPointFormats

SRP

SignatureAlgorithms

UseSRTP

Heartbeat

ALProtocolNegotiation

SCT

ClientCertificateType

ServerCertificateType

Padding

ExtendedMasterSecret

CompressCertificate

SessionTicket

PreSharedKey

EarlyData

SupportedVersions

Cookie

PSKKeyExchangeModes

TicketEarlyDataInfo

CertificateAuthorities

OIDFilters

PostHandshakeAuth

SignatureAlgorithmsCert

KeyShare

TransportParameters

NextProtocolNegotiation

ChannelId

RenegotiationInfo

TransportParametersDraft

EncryptedClientHello

EncryptedClientHelloOuterExtensions

Unknown(u16)

Implementations

impl ExtensionType

pub fn to_array(self) -> [u8; 2]

pub fn as_str(&self) -> Option<&'static str>

impl ExtensionType

pub(crate) fn ech_compress(&self) -> bool

Returns true if the extension type can be compressed in an “inner” client hello for ECH.

This function should only return true for extension types where the inner hello and outer hello extensions values will always be identical. Extensions that may be identical sometimes (e.g. server name, cert compression methods), but not always, SHOULD NOT be compressed.

See draft-ietf-esni-18 §5 and draft-ietf-esni-18 §10.5 for more information.

Trait Implementations

impl Clone for ExtensionType

fn clone(&self) -> ExtensionType

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Codec<'_> for ExtensionType

fn encode(&self, bytes: &mut Vec<u8>)

Function for encoding itself by appending itself to the provided vec of bytes.

fn read(r: &mut Reader<'_>) -> Result<Self, InvalidMessage>

Function for decoding itself from the provided reader will return Some if the decoding was successful or None if it was not.

fn get_encoding(&self) -> Vec<u8>

Convenience function for encoding the implementation into a vec and returning it

fn read_bytes(bytes: &'a [u8]) -> Result<Self, InvalidMessage>

Function for wrapping a call to the read function in a Reader for the slice of bytes provided

impl Debug for ExtensionType

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

Formats the value using the given formatter.

impl From<ExtensionType> for u16

fn from(value: ExtensionType) -> Self

Converts to this type from the input type.

impl From<u16> for ExtensionType

fn from(x: u16) -> Self

Converts to this type from the input type.

impl PartialEq for ExtensionType

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

Tests for self and other values to be equal, and is used by ==.

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

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl TlsListElement for ExtensionType

const SIZE_LEN: ListLength = ListLength::U8

impl Copy for ExtensionType

impl Eq for ExtensionType

impl StructuralPartialEq for ExtensionType