Enum ExtensionType 

pub enum ExtensionType {
    ApplicationId,
    RatchetTree,
    RequiredCapabilities,
    ExternalPub,
    ExternalSenders,
    LastResort,
    ImmutableMetadata,
    Unknown(u16),
}

MLS Extension Types

Copied from draft-ietf-mls-protocol-16:

Value	Name	Message(s)	Recommended	Reference
0x0000	RESERVED	N/A	N/A	RFC XXXX
0x0001	application_id	LN	Y	RFC XXXX
0x0002	ratchet_tree	GI	Y	RFC XXXX
0x0003	required_capabilities	GC	Y	RFC XXXX
0x0004	external_pub	GI	Y	RFC XXXX
0x0005	external_senders	GC	Y	RFC XXXX
0xff00 - 0xffff	Reserved for Private Use	N/A	N/A	RFC XXXX

Note: OpenMLS does not provide a Reserved variant in ExtensionType.

Variants

ApplicationId

The application id extension allows applications to add an explicit, application-defined identifier to a KeyPackage.

RatchetTree

The ratchet tree extensions provides the whole public state of the ratchet tree.

RequiredCapabilities

The required capabilities extension defines the configuration of a group that imposes certain requirements on clients in the group.

ExternalPub

To join a group via an External Commit, a new member needs a GroupInfo with an ExternalPub extension present in its extensions field.

ExternalSenders

Group context extension that contains the credentials and signature keys of senders that are permitted to send external proposals to the group.

LastResort

KeyPackage extension that marks a KeyPackage for use in a last resort scenario.

ImmutableMetadata

Immutable metadata extension for the GroupContext. This can only be set on creation of the group.

Unknown(u16)

A currently unknown extension type.

Implementations

impl ExtensionType

pub fn is_supported(&self) -> bool

Check whether an ExtensionType is supported or not.

Trait Implementations

impl Clone for ExtensionType

fn clone(&self) -> ExtensionType

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for ExtensionType

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ExtensionType

fn deserialize<__D>( __deserializer: __D, ) -> Result<ExtensionType, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Deserialize for ExtensionType

fn tls_deserialize<R>(bytes: &mut R) -> Result<ExtensionType, Error>

where R: Read, ExtensionType: Sized,

This function deserializes the bytes from the provided a std::io::Read and returns the populated struct.

fn tls_deserialize_exact(bytes: impl AsRef<[u8]>) -> Result<Self, Error>

where Self: Sized,

This function deserializes the provided bytes and returns the populated struct. All bytes must be consumed.

impl DeserializeBytes for ExtensionType

fn tls_deserialize_bytes(bytes: &[u8]) -> Result<(ExtensionType, &[u8]), Error>

where ExtensionType: Sized,

This function deserializes the bytes from the provided a &[u8] and returns the populated struct, as well as the remaining slice.

fn tls_deserialize_exact_bytes(bytes: &[u8]) -> Result<Self, Error>

where Self: Sized,

This function deserializes the provided bytes and returns the populated struct. All bytes must be consumed.

impl From<ExtensionType> for u16

fn from(value: ExtensionType) -> u16

Converts to this type from the input type.

impl From<u16> for ExtensionType

fn from(a: u16) -> ExtensionType

Converts to this type from the input type.

impl Hash for ExtensionType

fn hash<__H>(&self, state: &mut __H)

where __H: Hasher,

Feeds this value into the given Hasher.

fn hash_slice<H>(data: &[Self], state: &mut H)

where H: Hasher, Self: Sized,

Feeds a slice of this type into the given Hasher.

impl Ord for ExtensionType

fn cmp(&self, other: &ExtensionType) -> Ordering

This method returns an Ordering between self and other.

fn max(self, other: Self) -> Self

where Self: Sized,

Compares and returns the maximum of two values.

fn min(self, other: Self) -> Self

where Self: Sized,

Compares and returns the minimum of two values.

fn clamp(self, min: Self, max: Self) -> Self

where Self: Sized,

Restrict a value to a certain interval.

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 PartialOrd for ExtensionType

fn partial_cmp(&self, other: &ExtensionType) -> Option<Ordering>

This method returns an ordering between self and other values if one exists.

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

Tests less than (for self and other) and is used by the < operator.

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

Tests less than or equal to (for self and other) and is used by the <= operator.

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

Tests greater than (for self and other) and is used by the > operator.

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

Tests greater than or equal to (for self and other) and is used by the >= operator.

impl Serialize for ExtensionType

fn tls_serialize<W>(&self, writer: &mut W) -> Result<usize, Error>

where W: Write,

Serialize self and write it to the writer. The function returns the number of bytes written to writer.

fn tls_serialize_detached(&self) -> Result<Vec<u8>, Error>

Serialize self and return it as a byte vector.

impl Serialize for ExtensionType

fn serialize<__S>( &self, __serializer: __S, ) -> Result<<__S as Serializer>::Ok, <__S as Serializer>::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl Size for ExtensionType

fn tls_serialized_len(&self) -> usize

impl Copy for ExtensionType

impl Eq for ExtensionType

impl StructuralPartialEq for ExtensionType