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// Copyright (C) 2015 The Syncthing Authors.
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this file,
// You can obtain one at https://mozilla.org/MPL/2.0/.
package nat
import (
"context"
"net"
"time"
)
type Protocol string
const (
TCP Protocol = "TCP"
UDP Protocol = "UDP"
)
type IPVersion int8
const (
IPvAny = iota
IPv4Only
IPv6Only
)
type Device interface {
ID() string
GetLocalIPv4Address() net.IP
AddPortMapping(ctx context.Context, protocol Protocol, internalPort, externalPort int, description string, duration time.Duration) (int, error)
AddPinhole(ctx context.Context, protocol Protocol, addr Address, duration time.Duration) ([]net.IP, error)
GetExternalIPv4Address(ctx context.Context) (net.IP, error)
SupportsIPVersion(version IPVersion) bool
}
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