// SPDX-FileCopyrightText: 2026 Echolot contributors
// SPDX-License-Identifier: GPL-3.0-or-later

//go:build !linux

package dataplane

import "net"

// Per-packet TTL/TOS needs Linux's IP_RECVTTL-family cmsgs. Elsewhere the observation block and
// train buffers keep the spec §3.3 sentinel (0xFF = not observed) — absent is honest, a guess
// is not. Deployment targets are Linux; this build exists so the Windows dev loop compiles.
func enableRecvMeta(_ *net.UDPConn) {}

func parseMeta(_ []byte) pktMeta { return pktMeta{TTL: metaUnavailable, TOS: metaUnavailable} }