Struct Peer 

pub struct Peer {
    pub record: ServiceRecord,
    pub posture: Posture,
    pub fp: Option<String>,
    pub cn: Option<String>,
    pub expires_at: Option<DateTime<Utc>>,
}

A discovered peer enriched with its advertised trust state (ADR-020 §8).

Built from a ServiceRecord via Peer::from_record; the trust fields are parsed from the record’s TXT map. All trust fields are hints — see the module docs.

Fields

record: ServiceRecord

The underlying mDNS service record (name, type, host/ip, port, full TXT).

posture: Posture

The peer’s advertised posture (a hint; verify adjudicates).

fp: Option<String>

The CA fingerprint the peer anchors to (fp=), if advertised.

cn: Option<String>

The peer’s identity CN (cn=), if it chose to advertise one. The trusted CN comes from verify/mTLS, not this field.

expires_at: Option<DateTime<Utc>>

When the peer’s identity expires (expires=, absolute), if advertised.

Implementations

impl Peer

pub fn from_record(record: ServiceRecord) -> Peer

Build a typed peer from a discovered ServiceRecord, parsing the trust hints from its TXT map.

Posture resolution: an explicit posture= wins; otherwise a record that carries a CA fingerprint (fp=) is treated as authenticated (a node only advertises an anchor it holds an identity for); otherwise open.

pub fn level(&self) -> PostureLevel

The peer’s named posture level (Open / Authenticated / Confidential).

pub fn is_secure(&self) -> bool

Whether the peer advertises a usable cryptographic identity (signed).

pub fn addr(&self) -> Option<(String, u16)>

The peer’s dialable (host, port): its IP if known, else its hostname, paired with its advertised port. None if either is missing.

pub fn expires_in(&self, now: DateTime<Utc>) -> Option<TimeDelta>

Time remaining until the peer’s identity expires, computed against now. Negative once expired. None if the peer advertised no expiry.

Takes now explicitly so callers control the clock (and tests stay deterministic); for the wall clock pass chrono::Utc::now().

Trait Implementations

impl Clone for Peer

fn clone(&self) -> Peer

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Peer

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

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for Peer

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

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl PartialEq for Peer

fn eq(&self, other: &Peer) -> 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 Serialize for Peer

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 StructuralPartialEq for Peer