54 lines
1.2 KiB
Go
54 lines
1.2 KiB
Go
/*
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Copyright 2014 The Kubernetes Authors.
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Licensed under the Apache License, Version 2.0 (the "License");
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you may not use this file except in compliance with the License.
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You may obtain a copy of the License at
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http://www.apache.org/licenses/LICENSE-2.0
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Unless required by applicable law or agreed to in writing, software
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distributed under the License is distributed on an "AS IS" BASIS,
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WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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See the License for the specific language governing permissions and
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limitations under the License.
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*/
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package userspace
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import (
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"fmt"
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"net"
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)
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// udpEchoServer is a simple echo server in UDP, intended for testing the proxy.
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type udpEchoServer struct {
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net.PacketConn
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}
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func (r *udpEchoServer) Loop() {
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var buffer [4096]byte
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for {
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n, cliAddr, err := r.ReadFrom(buffer[0:])
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if err != nil {
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fmt.Printf("ReadFrom failed: %v\n", err)
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continue
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}
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r.WriteTo(buffer[0:n], cliAddr)
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}
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}
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func newUDPEchoServer() (*udpEchoServer, error) {
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packetconn, err := net.ListenPacket("udp", ":0")
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if err != nil {
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return nil, err
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}
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return &udpEchoServer{packetconn}, nil
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}
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/*
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func main() {
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r,_ := newUDPEchoServer()
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r.Loop()
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}
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*/
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