kmp-ble-mesh/com.atruedev.kmpble.mesh/NetworkPdu

NetworkPdu

data class NetworkPdu(val ivi: Int, val nid: Int, val ctl: Int, val ttl: Int, val seq: UInt, val src: MeshAddress.UnicastAddress, val dst: MeshAddress, val transportPdu: ByteArray, val netMic: ByteArray)

A complete Network PDU ready for transmission over a bearer.

Network PDUs are max 29 bytes for non-segmented access messages on the ADV bearer. Larger PDUs may be carried over the GATT proxy bearer (up to the negotiated MTU).

Constructors

constructor(ivi: Int, nid: Int, ctl: Int, ttl: Int, seq: UInt, src: MeshAddress.UnicastAddress, dst: MeshAddress, transportPdu: ByteArray, netMic: ByteArray)

Properties

val ctl: Int

Control (1) or Access (0) message indicator.

val dst: MeshAddress

Destination address (unicast, group, or virtual).

isControlMessage

val isControlMessage: Boolean

Whether this is a control message (vs access message).

val ivi: Int

IV Index least significant bit (0 = normal, 1 = IV update in progress).

val netMic: ByteArray

Network MIC (32-bit for access, 64-bit for control messages).

val nid: Int

Network ID -- 7-bit value identifying the NetKey (derived via K3).

24-bit sequence number for replay protection.

val src: MeshAddress.UnicastAddress

Source unicast address.

val transportPdu: ByteArray

Encrypted transport PDU payload.

val ttl: Int

Time-To-Live -- remaining hop count before message is dropped.