pub fn connectivity_check(
transaction: TransactionId,
peering: &Peering,
priority: Priority,
role: RoleAttribute,
) -> Result<Vec<u8>, Error>Expand description
A connectivity check to send to the peer (RFC 8445 §7.1, spec §11.1).
The attribute order is RFC 5769 §2.1’s own — PRIORITY, the role attribute, USERNAME — so
that what this produces lines up with the published vector attribute for attribute. Nothing
but the two integrity values has a normative position.