Function Client

control/controlbase/handshake.go:109–118

Client wraps ClientDeferred and immediately invokes the returned continuation with conn. This is a helper for when you don't need the fancy continuation-style handshake, and just want to synchronously upgrade a net.Conn to a secure transport.

(ctx context.Context, conn net.Conn, machineKey key.MachinePrivate, controlKey key.MachinePublic, protocolVersion uint16)

// continuation-style handshake, and just want to synchronously
// upgrade a net.Conn to a secure transport.
func Client(ctx context.Context, conn net.Conn, machineKey key.MachinePrivate, controlKey key.MachinePublic, protocolVersion uint16) (*Conn, error) {
	init, cont, err := ClientDeferred(machineKey, controlKey, protocolVersion)
	if err != nil {
		return nil, err
	}
	if _, err := conn.Write(init); err != nil {
		return nil, err
	}
	return cont(ctx, conn)
}

func continueClientHandshake(ctx context.Context, conn net.Conn, s *symmetricState, machineKey, machineEphemeral key.MachinePrivate, controlKey key.MachinePublic, protocolVersion uint16) (*Conn, error) {
	// No matter what, this function can only run once per s. Ensure