Struct FabricEntry 

#[non_exhaustive]
pub struct FabricEntry {
    pub fabric_id: u64,
    pub ipk: [u8; 16],
    pub rcac_cert: MatterCertificate,
    pub commissioner: CommissionerIdentity,
    pub devices: Vec<DeviceEntry>,
    pub group_keys: Vec<GroupKeySetConfig>,
    pub outbound_group_counter: u32,
    pub icd_clients: Vec<IcdRegistration>,
    pub icac: Option<IcacIdentity>,
    /* private fields */
}

One fabric the controller administers: trust root, IPK, the commissioner identity, and the devices commissioned onto it.

#[non_exhaustive]: persisted record that may gain fields (e.g. an ICAC tier, fabric label); marking it keeps such additions non-breaking. Only constructed inside matter-controller.

Fields (Non-exhaustive)

Non-exhaustive structs could have additional fields added in future. Therefore, non-exhaustive structs cannot be constructed in external crates using the traditional Struct { .. } syntax; cannot be matched against without a wildcard ..; and struct update syntax will not work.

fabric_id: u64

Matter fabric identifier.

ipk: [u8; 16]

16-byte Identity Protection Key for this fabric.

rcac_cert: MatterCertificate

Self-signed root (RCAC) certificate.

commissioner: CommissionerIdentity

The controller’s stable identity on this fabric.

devices: Vec<DeviceEntry>

Devices commissioned onto this fabric.

group_keys: Vec<GroupKeySetConfig>

Group key sets programmed on this fabric (persisted for outbound group message encryption). Empty until the controller programs group keys.

outbound_group_counter: u32

The reserved ceiling of the outbound group message counter for this fabric: the lowest counter value this controller may not yet have sent.

Persisted so counters survive restarts (spec §4.6.7 prohibits counter reuse across sessions / resets). The controller hands out counters below the ceiling from memory and only persists when it raises the ceiling by a block, so a restart resumes here — skipping at most a block of never-sent values, never reusing a sent one.

Snapshots written before block reservation stored the next counter to send, which is the same quantity (the smallest never-sent value), so they are read back correctly with no migration.

icd_clients: Vec<IcdRegistration>

ICD (Intermittently Connected Device) client registrations on this fabric. Each holds the shared key + counter floor the check-in listener uses to verify a registered device’s Check-In messages. Empty until the controller calls register_icd_client.

icac: Option<IcacIdentity>

Optional per-fabric intermediate CA. None for a flat RCAC->NOC fabric (the default); Some once the fabric adopts an ICAC tier.

Trait Implementations

impl Clone for FabricEntry

fn clone(&self) -> FabricEntry

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FabricEntry

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

Formats the value using the given formatter.