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path: root/vendor/golang.org/x/net/ipv4/unicast_test.go
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Diffstat (limited to 'vendor/golang.org/x/net/ipv4/unicast_test.go')
-rw-r--r--vendor/golang.org/x/net/ipv4/unicast_test.go247
1 files changed, 247 insertions, 0 deletions
diff --git a/vendor/golang.org/x/net/ipv4/unicast_test.go b/vendor/golang.org/x/net/ipv4/unicast_test.go
new file mode 100644
index 0000000..274a558
--- /dev/null
+++ b/vendor/golang.org/x/net/ipv4/unicast_test.go
@@ -0,0 +1,247 @@
+// 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.
+
+package ipv4_test
+
+import (
+ "bytes"
+ "net"
+ "os"
+ "runtime"
+ "testing"
+ "time"
+
+ "golang.org/x/net/icmp"
+ "golang.org/x/net/internal/iana"
+ "golang.org/x/net/internal/nettest"
+ "golang.org/x/net/ipv4"
+)
+
+func TestPacketConnReadWriteUnicastUDP(t *testing.T) {
+ switch runtime.GOOS {
+ case "js", "nacl", "plan9", "windows":
+ t.Skipf("not supported on %s", runtime.GOOS)
+ }
+ ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback)
+ if ifi == nil {
+ t.Skipf("not available on %s", runtime.GOOS)
+ }
+
+ c, err := nettest.NewLocalPacketListener("udp4")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer c.Close()
+ p := ipv4.NewPacketConn(c)
+ defer p.Close()
+
+ dst := c.LocalAddr()
+ cf := ipv4.FlagTTL | ipv4.FlagDst | ipv4.FlagInterface
+ wb := []byte("HELLO-R-U-THERE")
+
+ for i, toggle := range []bool{true, false, true} {
+ if err := p.SetControlMessage(cf, toggle); err != nil {
+ if nettest.ProtocolNotSupported(err) {
+ t.Logf("not supported on %s", runtime.GOOS)
+ continue
+ }
+ t.Fatal(err)
+ }
+ p.SetTTL(i + 1)
+ if err := p.SetWriteDeadline(time.Now().Add(100 * time.Millisecond)); err != nil {
+ t.Fatal(err)
+ }
+ if n, err := p.WriteTo(wb, nil, dst); err != nil {
+ t.Fatal(err)
+ } else if n != len(wb) {
+ t.Fatalf("got %v; want %v", n, len(wb))
+ }
+ rb := make([]byte, 128)
+ if err := p.SetReadDeadline(time.Now().Add(100 * time.Millisecond)); err != nil {
+ t.Fatal(err)
+ }
+ if n, _, _, err := p.ReadFrom(rb); err != nil {
+ t.Fatal(err)
+ } else if !bytes.Equal(rb[:n], wb) {
+ t.Fatalf("got %v; want %v", rb[:n], wb)
+ }
+ }
+}
+
+func TestPacketConnReadWriteUnicastICMP(t *testing.T) {
+ switch runtime.GOOS {
+ case "js", "nacl", "plan9", "windows":
+ t.Skipf("not supported on %s", runtime.GOOS)
+ }
+ if m, ok := nettest.SupportsRawIPSocket(); !ok {
+ t.Skip(m)
+ }
+ ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback)
+ if ifi == nil {
+ t.Skipf("not available on %s", runtime.GOOS)
+ }
+
+ c, err := net.ListenPacket("ip4:icmp", "0.0.0.0")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer c.Close()
+
+ dst, err := net.ResolveIPAddr("ip4", "127.0.0.1")
+ if err != nil {
+ t.Fatal(err)
+ }
+ p := ipv4.NewPacketConn(c)
+ defer p.Close()
+ cf := ipv4.FlagDst | ipv4.FlagInterface
+ if runtime.GOOS != "solaris" {
+ // Solaris never allows to modify ICMP properties.
+ cf |= ipv4.FlagTTL
+ }
+
+ for i, toggle := range []bool{true, false, true} {
+ wb, err := (&icmp.Message{
+ Type: ipv4.ICMPTypeEcho, Code: 0,
+ Body: &icmp.Echo{
+ ID: os.Getpid() & 0xffff, Seq: i + 1,
+ Data: []byte("HELLO-R-U-THERE"),
+ },
+ }).Marshal(nil)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if err := p.SetControlMessage(cf, toggle); err != nil {
+ if nettest.ProtocolNotSupported(err) {
+ t.Logf("not supported on %s", runtime.GOOS)
+ continue
+ }
+ t.Fatal(err)
+ }
+ p.SetTTL(i + 1)
+ if err := p.SetWriteDeadline(time.Now().Add(100 * time.Millisecond)); err != nil {
+ t.Fatal(err)
+ }
+ if n, err := p.WriteTo(wb, nil, dst); err != nil {
+ t.Fatal(err)
+ } else if n != len(wb) {
+ t.Fatalf("got %v; want %v", n, len(wb))
+ }
+ rb := make([]byte, 128)
+ loop:
+ if err := p.SetReadDeadline(time.Now().Add(100 * time.Millisecond)); err != nil {
+ t.Fatal(err)
+ }
+ if n, _, _, err := p.ReadFrom(rb); err != nil {
+ switch runtime.GOOS {
+ case "darwin": // older darwin kernels have some limitation on receiving icmp packet through raw socket
+ t.Logf("not supported on %s", runtime.GOOS)
+ continue
+ }
+ t.Fatal(err)
+ } else {
+ m, err := icmp.ParseMessage(iana.ProtocolICMP, rb[:n])
+ if err != nil {
+ t.Fatal(err)
+ }
+ if runtime.GOOS == "linux" && m.Type == ipv4.ICMPTypeEcho {
+ // On Linux we must handle own sent packets.
+ goto loop
+ }
+ if m.Type != ipv4.ICMPTypeEchoReply || m.Code != 0 {
+ t.Fatalf("got type=%v, code=%v; want type=%v, code=%v", m.Type, m.Code, ipv4.ICMPTypeEchoReply, 0)
+ }
+ }
+ }
+}
+
+func TestRawConnReadWriteUnicastICMP(t *testing.T) {
+ switch runtime.GOOS {
+ case "js", "nacl", "plan9", "windows":
+ t.Skipf("not supported on %s", runtime.GOOS)
+ }
+ if m, ok := nettest.SupportsRawIPSocket(); !ok {
+ t.Skip(m)
+ }
+ ifi := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback)
+ if ifi == nil {
+ t.Skipf("not available on %s", runtime.GOOS)
+ }
+
+ c, err := net.ListenPacket("ip4:icmp", "0.0.0.0")
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer c.Close()
+
+ dst, err := net.ResolveIPAddr("ip4", "127.0.0.1")
+ if err != nil {
+ t.Fatal(err)
+ }
+ r, err := ipv4.NewRawConn(c)
+ if err != nil {
+ t.Fatal(err)
+ }
+ defer r.Close()
+ cf := ipv4.FlagTTL | ipv4.FlagDst | ipv4.FlagInterface
+
+ for i, toggle := range []bool{true, false, true} {
+ wb, err := (&icmp.Message{
+ Type: ipv4.ICMPTypeEcho, Code: 0,
+ Body: &icmp.Echo{
+ ID: os.Getpid() & 0xffff, Seq: i + 1,
+ Data: []byte("HELLO-R-U-THERE"),
+ },
+ }).Marshal(nil)
+ if err != nil {
+ t.Fatal(err)
+ }
+ wh := &ipv4.Header{
+ Version: ipv4.Version,
+ Len: ipv4.HeaderLen,
+ TOS: i + 1,
+ TotalLen: ipv4.HeaderLen + len(wb),
+ TTL: i + 1,
+ Protocol: 1,
+ Dst: dst.IP,
+ }
+ if err := r.SetControlMessage(cf, toggle); err != nil {
+ if nettest.ProtocolNotSupported(err) {
+ t.Logf("not supported on %s", runtime.GOOS)
+ continue
+ }
+ t.Fatal(err)
+ }
+ if err := r.SetWriteDeadline(time.Now().Add(100 * time.Millisecond)); err != nil {
+ t.Fatal(err)
+ }
+ if err := r.WriteTo(wh, wb, nil); err != nil {
+ t.Fatal(err)
+ }
+ rb := make([]byte, ipv4.HeaderLen+128)
+ loop:
+ if err := r.SetReadDeadline(time.Now().Add(100 * time.Millisecond)); err != nil {
+ t.Fatal(err)
+ }
+ if _, b, _, err := r.ReadFrom(rb); err != nil {
+ switch runtime.GOOS {
+ case "darwin": // older darwin kernels have some limitation on receiving icmp packet through raw socket
+ t.Logf("not supported on %s", runtime.GOOS)
+ continue
+ }
+ t.Fatal(err)
+ } else {
+ m, err := icmp.ParseMessage(iana.ProtocolICMP, b)
+ if err != nil {
+ t.Fatal(err)
+ }
+ if runtime.GOOS == "linux" && m.Type == ipv4.ICMPTypeEcho {
+ // On Linux we must handle own sent packets.
+ goto loop
+ }
+ if m.Type != ipv4.ICMPTypeEchoReply || m.Code != 0 {
+ t.Fatalf("got type=%v, code=%v; want type=%v, code=%v", m.Type, m.Code, ipv4.ICMPTypeEchoReply, 0)
+ }
+ }
+ }
+}