Struct NtpPacket 

pub struct NtpPacket {

    pub leap: LeapIndicator,
    pub version: u8,
    pub mode: u8,
    pub stratum: u8,
    pub poll: i8,
    pub precision: i8,
    pub root_delay: u32,
    pub root_dispersion: u32,
    pub reference_id: [u8; 4],
    pub reference_ts: NtpTimestamp,
    pub origin_ts: NtpTimestamp,
    pub receive_ts: NtpTimestamp,
    pub transmit_ts: NtpTimestamp,
}

NTPv4 packet (48 bytes, RFC 5905).

Fields

leap: LeapIndicator

Leap indicator (2 bits)

version: u8

Version number (3 bits)

mode: u8

Mode (3 bits)

stratum: u8

Stratum level (0 = unspecified, 1 = primary, 2-15 = secondary)

poll: i8

Maximum interval between successive messages (log2 seconds)

precision: i8

Precision of the system clock (log2 seconds)

root_delay: u32

Total round-trip delay to the reference source (NTP short format, 16.16)

root_dispersion: u32

Maximum error relative to the reference source (NTP short format, 16.16)

reference_id: [u8; 4]

Reference identifier (stratum 1: 4-char ASCII, else: IP address)

reference_ts: NtpTimestamp

Time when the system clock was last set

origin_ts: NtpTimestamp

Time at the client when the request departed

receive_ts: NtpTimestamp

Time at the server when the request arrived

transmit_ts: NtpTimestamp

Time at the server when the response departed

Implementations

impl NtpPacket

pub fn new_request(transmit_ts: NtpTimestamp) -> Self

Create a new client request packet.

pub fn to_bytes(&self) -> [u8; 48]

Serialize to a 48-byte array.

pub fn from_bytes(buf: &[u8]) -> Option<Self>

Deserialize from a 48-byte slice.

pub fn is_kod(&self) -> bool

Check if this is a Kiss-o’-Death (KoD) packet.

KoD packets have stratum == 0 and a 4-char ASCII code in reference_id.

pub fn kod_code(&self) -> Option<[u8; 4]>

Get the KoD code (e.g., “DENY”, “RATE”, “RSTR”) if this is a KoD packet.

Trait Implementations

impl Clone for NtpPacket

fn clone(&self) -> NtpPacket

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for NtpPacket

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

Formats the value using the given formatter.

impl PartialEq for NtpPacket

fn eq(&self, other: &NtpPacket) -> 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 Eq for NtpPacket

impl StructuralPartialEq for NtpPacket