265 lines
7.1 KiB
Go
265 lines
7.1 KiB
Go
// Copyright 2013 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 ipv6_test
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import (
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"bytes"
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"net"
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"os"
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"runtime"
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"testing"
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"time"
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"golang.org/x/net/icmp"
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"golang.org/x/net/internal/iana"
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"golang.org/x/net/internal/nettest"
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"golang.org/x/net/ipv6"
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)
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var packetConnReadWriteMulticastUDPTests = []struct {
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addr string
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grp, src *net.UDPAddr
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}{
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{"[ff02::]:0", &net.UDPAddr{IP: net.ParseIP("ff02::114")}, nil}, // see RFC 4727
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{"[ff30::8000:0]:0", &net.UDPAddr{IP: net.ParseIP("ff30::8000:1")}, &net.UDPAddr{IP: net.IPv6loopback}}, // see RFC 5771
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}
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func TestPacketConnReadWriteMulticastUDP(t *testing.T) {
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switch runtime.GOOS {
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case "nacl", "plan9", "windows":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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if !supportsIPv6 {
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t.Skip("ipv6 is not supported")
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}
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if !nettest.SupportsIPv6MulticastDeliveryOnLoopback() {
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t.Skipf("multicast delivery doesn't work correctly on %s", runtime.GOOS)
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}
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ifi := nettest.RoutedInterface("ip6", net.FlagUp|net.FlagMulticast|net.FlagLoopback)
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if ifi == nil {
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t.Skipf("not available on %s", runtime.GOOS)
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}
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for _, tt := range packetConnReadWriteMulticastUDPTests {
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c, err := net.ListenPacket("udp6", tt.addr)
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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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grp := *tt.grp
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grp.Port = c.LocalAddr().(*net.UDPAddr).Port
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p := ipv6.NewPacketConn(c)
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defer p.Close()
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if tt.src == nil {
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if err := p.JoinGroup(ifi, &grp); err != nil {
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t.Fatal(err)
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}
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defer p.LeaveGroup(ifi, &grp)
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} else {
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if err := p.JoinSourceSpecificGroup(ifi, &grp, tt.src); err != nil {
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switch runtime.GOOS {
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case "freebsd", "linux":
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default: // platforms that don't support MLDv2 fail here
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t.Logf("not supported on %s", runtime.GOOS)
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continue
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}
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t.Fatal(err)
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}
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defer p.LeaveSourceSpecificGroup(ifi, &grp, tt.src)
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}
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if err := p.SetMulticastInterface(ifi); err != nil {
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t.Fatal(err)
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}
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if _, err := p.MulticastInterface(); err != nil {
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t.Fatal(err)
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}
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if err := p.SetMulticastLoopback(true); err != nil {
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t.Fatal(err)
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}
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if _, err := p.MulticastLoopback(); err != nil {
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t.Fatal(err)
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}
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cm := ipv6.ControlMessage{
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TrafficClass: iana.DiffServAF11 | iana.CongestionExperienced,
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Src: net.IPv6loopback,
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IfIndex: ifi.Index,
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}
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cf := ipv6.FlagTrafficClass | ipv6.FlagHopLimit | ipv6.FlagSrc | ipv6.FlagDst | ipv6.FlagInterface | ipv6.FlagPathMTU
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wb := []byte("HELLO-R-U-THERE")
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for i, toggle := range []bool{true, false, true} {
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if err := p.SetControlMessage(cf, toggle); err != nil {
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if nettest.ProtocolNotSupported(err) {
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t.Logf("not supported on %s", runtime.GOOS)
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continue
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}
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t.Fatal(err)
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}
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if err := p.SetDeadline(time.Now().Add(200 * time.Millisecond)); err != nil {
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t.Fatal(err)
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}
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cm.HopLimit = i + 1
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if n, err := p.WriteTo(wb, &cm, &grp); err != nil {
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t.Fatal(err)
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} else if n != len(wb) {
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t.Fatal(err)
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}
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rb := make([]byte, 128)
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if n, _, _, err := p.ReadFrom(rb); err != nil {
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t.Fatal(err)
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} else if !bytes.Equal(rb[:n], wb) {
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t.Fatalf("got %v; want %v", rb[:n], wb)
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}
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}
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}
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}
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var packetConnReadWriteMulticastICMPTests = []struct {
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grp, src *net.IPAddr
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}{
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{&net.IPAddr{IP: net.ParseIP("ff02::114")}, nil}, // see RFC 4727
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{&net.IPAddr{IP: net.ParseIP("ff30::8000:1")}, &net.IPAddr{IP: net.IPv6loopback}}, // see RFC 5771
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}
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func TestPacketConnReadWriteMulticastICMP(t *testing.T) {
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switch runtime.GOOS {
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case "nacl", "plan9", "windows":
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t.Skipf("not supported on %s", runtime.GOOS)
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}
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if !supportsIPv6 {
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t.Skip("ipv6 is not supported")
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}
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if !nettest.SupportsIPv6MulticastDeliveryOnLoopback() {
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t.Skipf("multicast delivery doesn't work correctly on %s", runtime.GOOS)
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}
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if m, ok := nettest.SupportsRawIPSocket(); !ok {
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t.Skip(m)
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}
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ifi := nettest.RoutedInterface("ip6", net.FlagUp|net.FlagMulticast|net.FlagLoopback)
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if ifi == nil {
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t.Skipf("not available on %s", runtime.GOOS)
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}
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for _, tt := range packetConnReadWriteMulticastICMPTests {
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c, err := net.ListenPacket("ip6:ipv6-icmp", "::")
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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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pshicmp := icmp.IPv6PseudoHeader(c.LocalAddr().(*net.IPAddr).IP, tt.grp.IP)
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p := ipv6.NewPacketConn(c)
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defer p.Close()
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if tt.src == nil {
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if err := p.JoinGroup(ifi, tt.grp); err != nil {
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t.Fatal(err)
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}
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defer p.LeaveGroup(ifi, tt.grp)
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} else {
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if err := p.JoinSourceSpecificGroup(ifi, tt.grp, tt.src); err != nil {
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switch runtime.GOOS {
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case "freebsd", "linux":
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default: // platforms that don't support MLDv2 fail here
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t.Logf("not supported on %s", runtime.GOOS)
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continue
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}
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t.Fatal(err)
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}
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defer p.LeaveSourceSpecificGroup(ifi, tt.grp, tt.src)
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}
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if err := p.SetMulticastInterface(ifi); err != nil {
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t.Fatal(err)
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}
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if _, err := p.MulticastInterface(); err != nil {
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t.Fatal(err)
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}
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if err := p.SetMulticastLoopback(true); err != nil {
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t.Fatal(err)
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}
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if _, err := p.MulticastLoopback(); err != nil {
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t.Fatal(err)
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}
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cm := ipv6.ControlMessage{
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TrafficClass: iana.DiffServAF11 | iana.CongestionExperienced,
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Src: net.IPv6loopback,
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IfIndex: ifi.Index,
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}
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cf := ipv6.FlagTrafficClass | ipv6.FlagHopLimit | ipv6.FlagSrc | ipv6.FlagDst | ipv6.FlagInterface | ipv6.FlagPathMTU
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var f ipv6.ICMPFilter
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f.SetAll(true)
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f.Accept(ipv6.ICMPTypeEchoReply)
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if err := p.SetICMPFilter(&f); err != nil {
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t.Fatal(err)
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}
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var psh []byte
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for i, toggle := range []bool{true, false, true} {
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if toggle {
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psh = nil
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if err := p.SetChecksum(true, 2); err != nil {
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// Solaris never allows to
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// modify ICMP properties.
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if runtime.GOOS != "solaris" {
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t.Fatal(err)
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}
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}
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} else {
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psh = pshicmp
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// Some platforms never allow to
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// disable the kernel checksum
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// processing.
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p.SetChecksum(false, -1)
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}
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wb, err := (&icmp.Message{
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Type: ipv6.ICMPTypeEchoRequest, Code: 0,
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Body: &icmp.Echo{
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ID: os.Getpid() & 0xffff, Seq: i + 1,
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Data: []byte("HELLO-R-U-THERE"),
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},
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}).Marshal(psh)
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if err != nil {
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t.Fatal(err)
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}
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if err := p.SetControlMessage(cf, toggle); err != nil {
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if nettest.ProtocolNotSupported(err) {
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t.Logf("not supported on %s", runtime.GOOS)
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continue
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}
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t.Fatal(err)
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}
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if err := p.SetDeadline(time.Now().Add(200 * time.Millisecond)); err != nil {
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t.Fatal(err)
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}
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cm.HopLimit = i + 1
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if n, err := p.WriteTo(wb, &cm, tt.grp); err != nil {
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t.Fatal(err)
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} else if n != len(wb) {
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t.Fatalf("got %v; want %v", n, len(wb))
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}
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rb := make([]byte, 128)
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if n, _, _, err := p.ReadFrom(rb); err != nil {
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switch runtime.GOOS {
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case "darwin": // older darwin kernels have some limitation on receiving icmp packet through raw socket
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t.Logf("not supported on %s", runtime.GOOS)
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continue
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}
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t.Fatal(err)
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} else {
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if m, err := icmp.ParseMessage(iana.ProtocolIPv6ICMP, rb[:n]); err != nil {
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t.Fatal(err)
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} else if m.Type != ipv6.ICMPTypeEchoReply || m.Code != 0 {
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t.Fatalf("got type=%v, code=%v; want type=%v, code=%v", m.Type, m.Code, ipv6.ICMPTypeEchoReply, 0)
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}
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}
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}
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}
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}
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