Struct Hello 

pub struct Hello {
    pub node_id: String,
    pub auth_tag: Vec<u8>,
    pub min_protocol_version: u32,
    pub max_protocol_version: u32,
    pub capabilities: u64,
    pub challenge: Vec<u8>,
}

Handshake: identifies the connecting node

Fields

node_id: String

auth_tag: Vec<u8>

Retained at its original field number for safe protobuf field evolution. Since protocol v2 this field must be empty; the challenge-bound proof is carried in HelloAuth.

min_protocol_version: u32

Inclusive wire-version range understood by this peer. Both are nonzero; a connection proceeds only when the ranges overlap.

max_protocol_version: u32

capabilities: u64

Feature bitset. Required bits are checked before either side installs the connection, so mixed binaries fail closed rather than mis-acknowledging mutations or replication.

challenge: Vec<u8>

Fresh 256-bit challenge generated independently for every physical connection. Both peers’ complete Hellos are bound into each HelloAuth.

Trait Implementations

impl Clone for Hello

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Hello

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

Formats the value using the given formatter.

impl Default for Hello

fn default() -> Self

Returns the “default value” for a type.

impl Eq for Hello

impl Hash for Hello

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

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 Message for Hello

fn encoded_len(&self) -> usize

Returns the encoded length of the message without a length delimiter.

fn clear(&mut self)

Clears the message, resetting all fields to their default.

fn encode(&self, buf: &mut impl BufMut) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message to a buffer.

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

where Self: Sized,

Encodes the message to a newly allocated buffer.

fn encode_length_delimited( &self, buf: &mut impl BufMut, ) -> Result<(), EncodeError>

where Self: Sized,

Encodes the message with a length-delimiter to a buffer.

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

where Self: Sized,

Encodes the message with a length-delimiter to a newly allocated buffer.

fn decode(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes an instance of the message from a buffer.

fn decode_length_delimited(buf: impl Buf) -> Result<Self, DecodeError>

where Self: Default,

Decodes a length-delimited instance of the message from the buffer.

fn merge(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes an instance of the message from a buffer, and merges it into self.

fn merge_length_delimited(&mut self, buf: impl Buf) -> Result<(), DecodeError>

where Self: Sized,

Decodes a length-delimited instance of the message from buffer, and merges it into self.

impl PartialEq for Hello

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

Equality operator ==.

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

Inequality operator !=.

impl StructuralPartialEq for Hello