Enum Update 

pub enum Update {
    Inserted,
    Refreshed,
    OutOfOrder,
    CapacityExceeded,
    OriginConflict,
    NamespaceConflict,
}

Result of Tracker::record.

Variants

Inserted

The frame’s pid was new and a fresh slot was allocated for it.

Refreshed

An existing slot was updated with the new nonce / timestamp / status.

OutOfOrder

The frame’s nonce was not strictly greater than the slot’s last observed nonce; the slot was left untouched.

CapacityExceeded

The tracker is full and the frame’s pid is not yet known. The slot table was not modified.

OriginConflict

A beat arrived for a pid that is already tracked, but the beat’s transport origin disagrees with the origin pinned by the slot’s first beat. First-origin-wins: the slot is not mutated and the beat is dropped. Prevents an attacker on an untrusted transport from “tainting” a slot that legitimately belongs to a kernel-attested agent (or vice-versa).

NamespaceConflict

A beat arrived for a pid that is already tracked, but the beat’s kernel-attested PID-namespace inode disagrees with the inode pinned by the slot’s first beat (Linux only — see [crate::peer_cred::read_pid_namespace_inode]). First-namespace-wins: the slot is not mutated and the beat is dropped. Catches the PID-collision case where two containers happen to share a numeric pid value (e.g. PID 1 in container A vs PID 1 in container B); the existing frame.pid == peer_pid gate at the observer fires first for most cross-namespace traffic, but a same-pid-different-namespace collision is invisible to that gate.

Trait Implementations

impl Clone for Update

fn clone(&self) -> Update

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Update

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

Formats the value using the given formatter.

impl PartialEq for Update

fn eq(&self, other: &Update) -> 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 Copy for Update

impl Eq for Update

impl StructuralPartialEq for Update