Struct GroupKeySetConfig 

#[non_exhaustive]
pub struct GroupKeySetConfig {
    pub key_set_id: u16,
    pub epoch_key: [u8; 16],
    pub epoch_start_time: u64,
}

The persisted material for one group key set.

Stored inside FabricEntry::group_keys and round-tripped through the TLV snapshot at context tags t6 (key-set array) and t7 (outbound counter). This carries only what the controller needs to send group-encrypted messages; a full GroupKeySet cluster record lives in the device, not here.

This is a pub type because callers that program group keys (e.g. higher-level fabric-management APIs) need to construct and inspect it.

#[non_exhaustive]: persisted record whose shape may grow (e.g. key policy epoch, security level flags); marking it keeps such additions non-breaking. Construct via GroupKeySetConfig::new.

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.

key_set_id: u16

Group Key Set ID (GrpKeySetID, 16-bit, spec §4.15).

epoch_key: [u8; 16]

16-byte epoch key (EpochKey0 / EpochKey1 / EpochKey2 per policy).

epoch_start_time: u64

Epoch key start time in Matter epoch seconds (0 = unset / pre-operational).

Implementations

impl GroupKeySetConfig

pub fn new(key_set_id: u16, epoch_key: [u8; 16], epoch_start_time: u64) -> Self

Construct a GroupKeySetConfig.

Required because the struct is #[non_exhaustive]; external callers cannot use struct-literal syntax.

Trait Implementations

impl Clone for GroupKeySetConfig

fn clone(&self) -> GroupKeySetConfig

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for GroupKeySetConfig

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

Formats the value using the given formatter.

impl Eq for GroupKeySetConfig

impl PartialEq for GroupKeySetConfig

fn eq(&self, other: &GroupKeySetConfig) -> bool

Equality operator ==.

fn ne(&self, other: &Rhs) -> bool

Inequality operator !=.

impl StructuralPartialEq for GroupKeySetConfig