161 lines
3.2 KiB
Go
Executable File
161 lines
3.2 KiB
Go
Executable File
// Copyright 2012 The Go Authors. All rights reserved.
|
|
// Use of this source code is governed by a BSD-style
|
|
// license that can be found in the LICENSE file.
|
|
|
|
// +build darwin dragonfly freebsd linux netbsd openbsd
|
|
|
|
package test
|
|
|
|
import (
|
|
"bytes"
|
|
"io"
|
|
"io/ioutil"
|
|
"math/rand"
|
|
"net"
|
|
"testing"
|
|
"time"
|
|
)
|
|
|
|
func TestPortForward(t *testing.T) {
|
|
server := newServer(t)
|
|
defer server.Shutdown()
|
|
conn := server.Dial(clientConfig())
|
|
defer conn.Close()
|
|
|
|
sshListener, err := conn.Listen("tcp", "localhost:0")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
go func() {
|
|
sshConn, err := sshListener.Accept()
|
|
if err != nil {
|
|
t.Fatalf("listen.Accept failed: %v", err)
|
|
}
|
|
|
|
_, err = io.Copy(sshConn, sshConn)
|
|
if err != nil && err != io.EOF {
|
|
t.Fatalf("ssh client copy: %v", err)
|
|
}
|
|
sshConn.Close()
|
|
}()
|
|
|
|
forwardedAddr := sshListener.Addr().String()
|
|
tcpConn, err := net.Dial("tcp", forwardedAddr)
|
|
if err != nil {
|
|
t.Fatalf("TCP dial failed: %v", err)
|
|
}
|
|
|
|
readChan := make(chan []byte)
|
|
go func() {
|
|
data, _ := ioutil.ReadAll(tcpConn)
|
|
readChan <- data
|
|
}()
|
|
|
|
// Invent some data.
|
|
data := make([]byte, 100*1000)
|
|
for i := range data {
|
|
data[i] = byte(i % 255)
|
|
}
|
|
|
|
var sent []byte
|
|
for len(sent) < 1000*1000 {
|
|
// Send random sized chunks
|
|
m := rand.Intn(len(data))
|
|
n, err := tcpConn.Write(data[:m])
|
|
if err != nil {
|
|
break
|
|
}
|
|
sent = append(sent, data[:n]...)
|
|
}
|
|
if err := tcpConn.(*net.TCPConn).CloseWrite(); err != nil {
|
|
t.Errorf("tcpConn.CloseWrite: %v", err)
|
|
}
|
|
|
|
read := <-readChan
|
|
|
|
if len(sent) != len(read) {
|
|
t.Fatalf("got %d bytes, want %d", len(read), len(sent))
|
|
}
|
|
if bytes.Compare(sent, read) != 0 {
|
|
t.Fatalf("read back data does not match")
|
|
}
|
|
|
|
if err := sshListener.Close(); err != nil {
|
|
t.Fatalf("sshListener.Close: %v", err)
|
|
}
|
|
|
|
// Check that the forward disappeared.
|
|
tcpConn, err = net.Dial("tcp", forwardedAddr)
|
|
if err == nil {
|
|
tcpConn.Close()
|
|
t.Errorf("still listening to %s after closing", forwardedAddr)
|
|
}
|
|
}
|
|
|
|
func TestAcceptClose(t *testing.T) {
|
|
server := newServer(t)
|
|
defer server.Shutdown()
|
|
conn := server.Dial(clientConfig())
|
|
|
|
sshListener, err := conn.Listen("tcp", "localhost:0")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
quit := make(chan error, 1)
|
|
go func() {
|
|
for {
|
|
c, err := sshListener.Accept()
|
|
if err != nil {
|
|
quit <- err
|
|
break
|
|
}
|
|
c.Close()
|
|
}
|
|
}()
|
|
sshListener.Close()
|
|
|
|
select {
|
|
case <-time.After(1 * time.Second):
|
|
t.Errorf("timeout: listener did not close.")
|
|
case err := <-quit:
|
|
t.Logf("quit as expected (error %v)", err)
|
|
}
|
|
}
|
|
|
|
// Check that listeners exit if the underlying client transport dies.
|
|
func TestPortForwardConnectionClose(t *testing.T) {
|
|
server := newServer(t)
|
|
defer server.Shutdown()
|
|
conn := server.Dial(clientConfig())
|
|
|
|
sshListener, err := conn.Listen("tcp", "localhost:0")
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
|
|
quit := make(chan error, 1)
|
|
go func() {
|
|
for {
|
|
c, err := sshListener.Accept()
|
|
if err != nil {
|
|
quit <- err
|
|
break
|
|
}
|
|
c.Close()
|
|
}
|
|
}()
|
|
|
|
// It would be even nicer if we closed the server side, but it
|
|
// is more involved as the fd for that side is dup()ed.
|
|
server.clientConn.Close()
|
|
|
|
select {
|
|
case <-time.After(1 * time.Second):
|
|
t.Errorf("timeout: listener did not close.")
|
|
case err := <-quit:
|
|
t.Logf("quit as expected (error %v)", err)
|
|
}
|
|
}
|