1 // Copyright 2013 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
13 "golang.org/x/net/internal/iana"
14 "golang.org/x/net/internal/nettest"
15 "golang.org/x/net/ipv6"
18 var supportsIPv6 bool = nettest.SupportsIPv6()
20 func TestConnInitiatorPathMTU(t *testing.T) {
22 case "nacl", "plan9", "windows":
23 t.Skipf("not supported on %s", runtime.GOOS)
26 t.Skip("ipv6 is not supported")
29 ln, err := net.Listen("tcp6", "[::1]:0")
35 done := make(chan bool)
36 go acceptor(t, ln, done)
38 c, err := net.Dial("tcp6", ln.Addr().String())
44 if pmtu, err := ipv6.NewConn(c).PathMTU(); err != nil {
46 case "darwin": // older darwin kernels don't support IPV6_PATHMTU option
47 t.Logf("not supported on %s", runtime.GOOS)
52 t.Logf("path mtu for %v: %v", c.RemoteAddr(), pmtu)
58 func TestConnResponderPathMTU(t *testing.T) {
60 case "nacl", "plan9", "windows":
61 t.Skipf("not supported on %s", runtime.GOOS)
64 t.Skip("ipv6 is not supported")
67 ln, err := net.Listen("tcp6", "[::1]:0")
73 done := make(chan bool)
74 go connector(t, "tcp6", ln.Addr().String(), done)
82 if pmtu, err := ipv6.NewConn(c).PathMTU(); err != nil {
84 case "darwin": // older darwin kernels don't support IPV6_PATHMTU option
85 t.Logf("not supported on %s", runtime.GOOS)
90 t.Logf("path mtu for %v: %v", c.RemoteAddr(), pmtu)
96 func TestPacketConnChecksum(t *testing.T) {
98 case "nacl", "plan9", "windows":
99 t.Skipf("not supported on %s", runtime.GOOS)
102 t.Skip("ipv6 is not supported")
104 if m, ok := nettest.SupportsRawIPSocket(); !ok {
108 c, err := net.ListenPacket(fmt.Sprintf("ip6:%d", iana.ProtocolOSPFIGP), "::") // OSPF for IPv6
114 p := ipv6.NewPacketConn(c)
115 offset := 12 // see RFC 5340
117 for _, toggle := range []bool{false, true} {
118 if err := p.SetChecksum(toggle, offset); err != nil {
120 t.Fatalf("ipv6.PacketConn.SetChecksum(%v, %v) failed: %v", toggle, offset, err)
122 // Some platforms never allow to disable the kernel
123 // checksum processing.
124 t.Logf("ipv6.PacketConn.SetChecksum(%v, %v) failed: %v", toggle, offset, err)
127 if on, offset, err := p.Checksum(); err != nil {
130 t.Logf("kernel checksum processing enabled=%v, offset=%v", on, offset)