92 lines
3.0 KiB
Go
92 lines
3.0 KiB
Go
package main
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import (
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"flag"
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"fmt"
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"github.com/esrrhs/pingtunnel"
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)
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var usage = `
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通过伪造ping，把udp流量通过远程服务器转发到目的服务器上。用于突破某些运营商封锁UDP流量。
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By forging ping, the udp traffic is forwarded to the destination server through the remote server. Used to break certain operators to block UDP traffic.
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Usage:
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pingtunnel -type server
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pingtunnel -type client -l LOCAL_IP:4455 -s SERVER_IP -t SERVER_IP:4455
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-type 服务器或者客户端
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client or server
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-l 本地的地址，发到这个端口的流量将转发到服务器
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Local address, traffic sent to this port will be forwarded to the server
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-s 服务器的地址，流量将通过隧道转发到这个服务器
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The address of the server, the traffic will be forwarded to this server through the tunnel
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-t 远端服务器转发的目的地址，流量将转发到这个地址
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Destination address forwarded by the remote server, traffic will be forwarded to this address
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-timeout 本地记录连接超时的时间，单位是秒，默认60s
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The time when the local record connection timed out, in seconds, 60 seconds by default
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-sproto 客户端发送ping协议的协议，默认是8
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The protocol that the client sends the ping. The default is 8.
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-rproto 客户端接收ping协议的协议，默认是0
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The protocol that the client receives the ping. The default is 0.
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-hb 客户端自动保持每秒发到服务器的心跳包，用于在某些网络下更新服务器的id和seq，以接收到服务器的reply，默认0关闭
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`
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func main() {
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t := flag.String("type", "", "client or server")
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listen := flag.String("l", "", "listen addr")
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target := flag.String("t", "", "target addr")
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server := flag.String("s", "", "server addr")
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timeout := flag.Int("timeout", 60, "conn timeout")
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sproto := flag.Int("sproto", 8, "send ping proto")
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rproto := flag.Int("rproto", 0, "recv ping proto")
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hb := flag.Int("hb", 0, "client heartbeat")
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flag.Usage = func() {
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fmt.Printf(usage)
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}
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flag.Parse()
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if (*t != "client" && *t != "server") || (*t == "client" && (len(*listen) == 0 || len(*target) == 0 || len(*server) == 0)) {
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flag.Usage()
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return
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}
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fmt.Println("start...")
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if *t == "server" {
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s, err := pingtunnel.NewServer(*timeout)
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if err != nil {
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fmt.Printf("ERROR: %s\n", err.Error())
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return
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}
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fmt.Printf("Server start\n")
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s.Run()
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}
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if *t == "client" {
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fmt.Printf("type %s\n", *t)
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fmt.Printf("listen %s\n", *listen)
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fmt.Printf("server %s\n", *server)
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fmt.Printf("target %s\n", *target)
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c, err := pingtunnel.NewClient(*listen, *server, *target, *timeout, *sproto, *rproto, *hb)
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if err != nil {
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fmt.Printf("ERROR: %s\n", err.Error())
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return
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}
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fmt.Printf("Client Listen %s (%s) Server %s (%s) TargetPort %s:\n", c.Addr(), c.IPAddr(),
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c.ServerAddr(), c.ServerIPAddr(), c.TargetAddr())
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c.Run()
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}
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}
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