// Copyright 2015 CoreOS, Inc.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//     http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

package backend

import (
	"net"

	"github.com/coreos/flannel/pkg/ip"
)

type SubnetDef struct {
	Net ip.IP4Net
	MTU int
}

type Backend interface {
	Init(extIface *net.Interface, extIaddr net.IP, extEaddr net.IP) (*SubnetDef, error)
	Run()
	Stop()
	Name() string
}
