417 lines
11 KiB
Go
417 lines
11 KiB
Go
// Copyright 2012 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package net
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import (
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"internal/testenv"
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"reflect"
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"runtime"
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"testing"
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"time"
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)
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func BenchmarkUDP6LinkLocalUnicast(b *testing.B) {
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testHookUninstaller.Do(uninstallTestHooks)
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if !supportsIPv6() {
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b.Skip("IPv6 is not supported")
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}
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ifi := loopbackInterface()
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if ifi == nil {
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b.Skip("loopback interface not found")
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}
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lla := ipv6LinkLocalUnicastAddr(ifi)
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if lla == "" {
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b.Skip("IPv6 link-local unicast address not found")
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}
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c1, err := ListenPacket("udp6", JoinHostPort(lla+"%"+ifi.Name, "0"))
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if err != nil {
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b.Fatal(err)
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}
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defer c1.Close()
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c2, err := ListenPacket("udp6", JoinHostPort(lla+"%"+ifi.Name, "0"))
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if err != nil {
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b.Fatal(err)
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}
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defer c2.Close()
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var buf [1]byte
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for i := 0; i < b.N; i++ {
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if _, err := c1.WriteTo(buf[:], c2.LocalAddr()); err != nil {
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b.Fatal(err)
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}
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if _, _, err := c2.ReadFrom(buf[:]); err != nil {
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b.Fatal(err)
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}
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}
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}
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type resolveUDPAddrTest struct {
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network string
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litAddrOrName string
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addr *UDPAddr
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err error
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}
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var resolveUDPAddrTests = []resolveUDPAddrTest{
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{"udp", "127.0.0.1:0", &UDPAddr{IP: IPv4(127, 0, 0, 1), Port: 0}, nil},
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{"udp4", "127.0.0.1:65535", &UDPAddr{IP: IPv4(127, 0, 0, 1), Port: 65535}, nil},
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{"udp", "[::1]:0", &UDPAddr{IP: ParseIP("::1"), Port: 0}, nil},
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{"udp6", "[::1]:65535", &UDPAddr{IP: ParseIP("::1"), Port: 65535}, nil},
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{"udp", "[::1%en0]:1", &UDPAddr{IP: ParseIP("::1"), Port: 1, Zone: "en0"}, nil},
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{"udp6", "[::1%911]:2", &UDPAddr{IP: ParseIP("::1"), Port: 2, Zone: "911"}, nil},
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{"", "127.0.0.1:0", &UDPAddr{IP: IPv4(127, 0, 0, 1), Port: 0}, nil}, // Go 1.0 behavior
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{"", "[::1]:0", &UDPAddr{IP: ParseIP("::1"), Port: 0}, nil}, // Go 1.0 behavior
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{"udp", ":12345", &UDPAddr{Port: 12345}, nil},
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{"http", "127.0.0.1:0", nil, UnknownNetworkError("http")},
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{"udp", "127.0.0.1:domain", &UDPAddr{IP: ParseIP("127.0.0.1"), Port: 53}, nil},
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{"udp", "[::ffff:127.0.0.1]:domain", &UDPAddr{IP: ParseIP("::ffff:127.0.0.1"), Port: 53}, nil},
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{"udp", "[2001:db8::1]:domain", &UDPAddr{IP: ParseIP("2001:db8::1"), Port: 53}, nil},
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{"udp4", "127.0.0.1:domain", &UDPAddr{IP: ParseIP("127.0.0.1"), Port: 53}, nil},
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{"udp4", "[::ffff:127.0.0.1]:domain", &UDPAddr{IP: ParseIP("127.0.0.1"), Port: 53}, nil},
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{"udp6", "[2001:db8::1]:domain", &UDPAddr{IP: ParseIP("2001:db8::1"), Port: 53}, nil},
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{"udp4", "[2001:db8::1]:domain", nil, &AddrError{Err: errNoSuitableAddress.Error(), Addr: "2001:db8::1"}},
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{"udp6", "127.0.0.1:domain", nil, &AddrError{Err: errNoSuitableAddress.Error(), Addr: "127.0.0.1"}},
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{"udp6", "[::ffff:127.0.0.1]:domain", nil, &AddrError{Err: errNoSuitableAddress.Error(), Addr: "::ffff:127.0.0.1"}},
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}
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func TestResolveUDPAddr(t *testing.T) {
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origTestHookLookupIP := testHookLookupIP
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defer func() { testHookLookupIP = origTestHookLookupIP }()
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testHookLookupIP = lookupLocalhost
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for _, tt := range resolveUDPAddrTests {
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addr, err := ResolveUDPAddr(tt.network, tt.litAddrOrName)
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if !reflect.DeepEqual(addr, tt.addr) || !reflect.DeepEqual(err, tt.err) {
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t.Errorf("ResolveUDPAddr(%q, %q) = %#v, %v, want %#v, %v", tt.network, tt.litAddrOrName, addr, err, tt.addr, tt.err)
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continue
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}
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if err == nil {
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addr2, err := ResolveUDPAddr(addr.Network(), addr.String())
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if !reflect.DeepEqual(addr2, tt.addr) || err != tt.err {
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t.Errorf("(%q, %q): ResolveUDPAddr(%q, %q) = %#v, %v, want %#v, %v", tt.network, tt.litAddrOrName, addr.Network(), addr.String(), addr2, err, tt.addr, tt.err)
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}
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}
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}
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}
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func TestWriteToUDP(t *testing.T) {
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switch runtime.GOOS {
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case "plan9":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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c, err := ListenPacket("udp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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testWriteToConn(t, c.LocalAddr().String())
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testWriteToPacketConn(t, c.LocalAddr().String())
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}
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func testWriteToConn(t *testing.T, raddr string) {
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c, err := Dial("udp", raddr)
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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ra, err := ResolveUDPAddr("udp", raddr)
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if err != nil {
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t.Fatal(err)
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}
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b := []byte("CONNECTED-MODE SOCKET")
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_, err = c.(*UDPConn).WriteToUDP(b, ra)
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if err == nil {
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t.Fatal("should fail")
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}
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if err != nil && err.(*OpError).Err != ErrWriteToConnected {
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t.Fatalf("should fail as ErrWriteToConnected: %v", err)
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}
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_, err = c.(*UDPConn).WriteTo(b, ra)
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if err == nil {
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t.Fatal("should fail")
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}
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if err != nil && err.(*OpError).Err != ErrWriteToConnected {
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t.Fatalf("should fail as ErrWriteToConnected: %v", err)
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}
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_, err = c.Write(b)
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if err != nil {
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t.Fatal(err)
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}
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_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, ra)
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if err == nil {
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t.Fatal("should fail")
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}
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if err != nil && err.(*OpError).Err != ErrWriteToConnected {
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t.Fatalf("should fail as ErrWriteToConnected: %v", err)
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}
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_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, nil)
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switch runtime.GOOS {
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case "nacl": // see golang.org/issue/9252
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t.Skipf("not implemented yet on %s", runtime.GOOS)
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case "windows":
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if testenv.IsWindowsXP() {
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t.Log("skipping broken test on Windows XP (see golang.org/issue/23072)")
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return
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}
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default:
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if err != nil {
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t.Fatal(err)
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}
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}
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}
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func testWriteToPacketConn(t *testing.T, raddr string) {
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c, err := ListenPacket("udp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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ra, err := ResolveUDPAddr("udp", raddr)
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if err != nil {
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t.Fatal(err)
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}
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b := []byte("UNCONNECTED-MODE SOCKET")
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_, err = c.(*UDPConn).WriteToUDP(b, ra)
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if err != nil {
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t.Fatal(err)
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}
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_, err = c.WriteTo(b, ra)
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if err != nil {
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t.Fatal(err)
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}
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_, err = c.(*UDPConn).Write(b)
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if err == nil {
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t.Fatal("should fail")
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}
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_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, nil)
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if err == nil {
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t.Fatal("should fail")
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}
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if err != nil && err.(*OpError).Err != errMissingAddress {
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t.Fatalf("should fail as errMissingAddress: %v", err)
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}
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_, _, err = c.(*UDPConn).WriteMsgUDP(b, nil, ra)
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switch runtime.GOOS {
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case "nacl": // see golang.org/issue/9252
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t.Skipf("not implemented yet on %s", runtime.GOOS)
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case "windows":
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if testenv.IsWindowsXP() {
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t.Log("skipping broken test on Windows XP (see golang.org/issue/23072)")
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return
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}
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default:
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if err != nil {
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t.Fatal(err)
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}
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}
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}
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var udpConnLocalNameTests = []struct {
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net string
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laddr *UDPAddr
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}{
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{"udp4", &UDPAddr{IP: IPv4(127, 0, 0, 1)}},
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{"udp4", &UDPAddr{}},
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{"udp4", nil},
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}
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func TestUDPConnLocalName(t *testing.T) {
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testenv.MustHaveExternalNetwork(t)
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for _, tt := range udpConnLocalNameTests {
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c, err := ListenUDP(tt.net, tt.laddr)
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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la := c.LocalAddr()
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if a, ok := la.(*UDPAddr); !ok || a.Port == 0 {
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t.Fatalf("got %v; expected a proper address with non-zero port number", la)
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}
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}
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}
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func TestUDPConnLocalAndRemoteNames(t *testing.T) {
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for _, laddr := range []string{"", "127.0.0.1:0"} {
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c1, err := ListenPacket("udp", "127.0.0.1:0")
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if err != nil {
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t.Fatal(err)
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}
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defer c1.Close()
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var la *UDPAddr
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if laddr != "" {
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var err error
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if la, err = ResolveUDPAddr("udp", laddr); err != nil {
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t.Fatal(err)
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}
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}
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c2, err := DialUDP("udp", la, c1.LocalAddr().(*UDPAddr))
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if err != nil {
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t.Fatal(err)
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}
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defer c2.Close()
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var connAddrs = [4]struct {
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got Addr
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ok bool
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}{
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{c1.LocalAddr(), true},
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{c1.(*UDPConn).RemoteAddr(), false},
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{c2.LocalAddr(), true},
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{c2.RemoteAddr(), true},
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}
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for _, ca := range connAddrs {
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if a, ok := ca.got.(*UDPAddr); ok != ca.ok || ok && a.Port == 0 {
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t.Fatalf("got %v; expected a proper address with non-zero port number", ca.got)
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}
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}
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}
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}
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func TestIPv6LinkLocalUnicastUDP(t *testing.T) {
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testenv.MustHaveExternalNetwork(t)
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if !supportsIPv6() {
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t.Skip("IPv6 is not supported")
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}
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for i, tt := range ipv6LinkLocalUnicastUDPTests {
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c1, err := ListenPacket(tt.network, tt.address)
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if err != nil {
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// It might return "LookupHost returned no
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// suitable address" error on some platforms.
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t.Log(err)
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continue
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}
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ls, err := (&packetListener{PacketConn: c1}).newLocalServer()
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if err != nil {
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t.Fatal(err)
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}
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defer ls.teardown()
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ch := make(chan error, 1)
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handler := func(ls *localPacketServer, c PacketConn) { packetTransponder(c, ch) }
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if err := ls.buildup(handler); err != nil {
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t.Fatal(err)
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}
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if la, ok := c1.LocalAddr().(*UDPAddr); !ok || !tt.nameLookup && la.Zone == "" {
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t.Fatalf("got %v; expected a proper address with zone identifier", la)
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}
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c2, err := Dial(tt.network, ls.PacketConn.LocalAddr().String())
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if err != nil {
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t.Fatal(err)
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}
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defer c2.Close()
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if la, ok := c2.LocalAddr().(*UDPAddr); !ok || !tt.nameLookup && la.Zone == "" {
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t.Fatalf("got %v; expected a proper address with zone identifier", la)
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}
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if ra, ok := c2.RemoteAddr().(*UDPAddr); !ok || !tt.nameLookup && ra.Zone == "" {
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t.Fatalf("got %v; expected a proper address with zone identifier", ra)
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}
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if _, err := c2.Write([]byte("UDP OVER IPV6 LINKLOCAL TEST")); err != nil {
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t.Fatal(err)
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}
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b := make([]byte, 32)
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if _, err := c2.Read(b); err != nil {
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t.Fatal(err)
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}
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for err := range ch {
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t.Errorf("#%d: %v", i, err)
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}
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}
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}
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func TestUDPZeroBytePayload(t *testing.T) {
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switch runtime.GOOS {
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case "nacl", "plan9":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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c, err := newLocalPacketListener("udp")
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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for _, genericRead := range []bool{false, true} {
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n, err := c.WriteTo(nil, c.LocalAddr())
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if err != nil {
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t.Fatal(err)
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}
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if n != 0 {
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t.Errorf("got %d; want 0", n)
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}
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c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
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var b [1]byte
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if genericRead {
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_, err = c.(Conn).Read(b[:])
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} else {
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_, _, err = c.ReadFrom(b[:])
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}
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switch err {
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case nil: // ReadFrom succeeds
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default: // Read may timeout, it depends on the platform
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if nerr, ok := err.(Error); !ok || !nerr.Timeout() {
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t.Fatal(err)
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}
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}
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}
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}
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func TestUDPZeroByteBuffer(t *testing.T) {
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switch runtime.GOOS {
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case "nacl", "plan9":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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c, err := newLocalPacketListener("udp")
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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b := []byte("UDP ZERO BYTE BUFFER TEST")
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for _, genericRead := range []bool{false, true} {
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n, err := c.WriteTo(b, c.LocalAddr())
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if err != nil {
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t.Fatal(err)
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}
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if n != len(b) {
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t.Errorf("got %d; want %d", n, len(b))
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}
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c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
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if genericRead {
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_, err = c.(Conn).Read(nil)
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} else {
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_, _, err = c.ReadFrom(nil)
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}
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switch err {
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case nil: // ReadFrom succeeds
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default: // Read may timeout, it depends on the platform
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if nerr, ok := err.(Error); (!ok || !nerr.Timeout()) && runtime.GOOS != "windows" { // Windows returns WSAEMSGSIZ
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t.Fatal(err)
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}
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}
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}
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}
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