Struct Hello 

pub struct Hello {

    pub client_min_protocol: u32,
    pub client_max_protocol: u32,
    pub service_name: String,
    pub wanted_version: String,
    pub client_version: String,
    pub client_capabilities: u64,
    pub auth_token: Vec<u8>,
    pub request_id: String,
    pub connection_id: u64,
    pub peer_pid: u32,
    pub client_lib_name: String,
    pub client_lib_version: String,
    pub peer_attestation_nonce: Vec<u8>,
    pub capability_token: Vec<u8>,
    pub client_keepalive_secs: u64,
}

Required first message on every new connection to a broker pipe.

Fields

client_min_protocol: u32

client_max_protocol: u32

service_name: String

[a-z0-9-]{1,64} (lowercase-normalized, regex-validated)

wanted_version: String

^[0-9]+.[0-9]+.[0-9]+(-[a-z0-9.]+)?$ (semver)

client_version: String

informational

client_capabilities: u64

capability bitmap (additive feature flags)

auth_token: Vec<u8>

reserved for future capability delegation

request_id: String

per-Hello correlation

connection_id: u64

broker-assigned (zero on Hello, set on HelloReply echo)

peer_pid: u32

client-self-reported; broker verifies via SO_PEERCRED

client_lib_name: String

telemetry

client_lib_version: String

peer_attestation_nonce: Vec<u8>

reserved (challenge-response)

capability_token: Vec<u8>

reserved (capability delegation)

client_keepalive_secs: u64

proposed idle keepalive

Trait Implementations

impl Clone for Hello

fn clone(&self) -> Hello

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: &Hello) -> 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 StructuralPartialEq for Hello