| // 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 ( |
| "net" |
| "runtime" |
| "testing" |
| |
| "golang.org/x/net/internal/iana" |
| "golang.org/x/net/ipv4" |
| "golang.org/x/net/nettest" |
| ) |
| |
| func TestConnUnicastSocketOptions(t *testing.T) { |
| switch runtime.GOOS { |
| case "fuchsia", "hurd", "js", "nacl", "plan9", "windows": |
| t.Skipf("not supported on %s", runtime.GOOS) |
| } |
| if _, err := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback); err != nil { |
| t.Skipf("not available on %s", runtime.GOOS) |
| } |
| |
| ln, err := net.Listen("tcp4", "127.0.0.1:0") |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer ln.Close() |
| |
| errc := make(chan error, 1) |
| go func() { |
| c, err := ln.Accept() |
| if err != nil { |
| errc <- err |
| return |
| } |
| errc <- c.Close() |
| }() |
| |
| c, err := net.Dial("tcp4", ln.Addr().String()) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer c.Close() |
| |
| testUnicastSocketOptions(t, ipv4.NewConn(c)) |
| |
| if err := <-errc; err != nil { |
| t.Errorf("server: %v", err) |
| } |
| } |
| |
| var packetConnUnicastSocketOptionTests = []struct { |
| net, proto, addr string |
| }{ |
| {"udp4", "", "127.0.0.1:0"}, |
| {"ip4", ":icmp", "127.0.0.1"}, |
| } |
| |
| func TestPacketConnUnicastSocketOptions(t *testing.T) { |
| switch runtime.GOOS { |
| case "fuchsia", "hurd", "js", "nacl", "plan9", "windows": |
| t.Skipf("not supported on %s", runtime.GOOS) |
| } |
| if _, err := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback); err != nil { |
| t.Skipf("not available on %s", runtime.GOOS) |
| } |
| |
| ok := nettest.SupportsRawSocket() |
| for _, tt := range packetConnUnicastSocketOptionTests { |
| if tt.net == "ip4" && !ok { |
| t.Logf("not supported on %s/%s", runtime.GOOS, runtime.GOARCH) |
| continue |
| } |
| c, err := net.ListenPacket(tt.net+tt.proto, tt.addr) |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer c.Close() |
| |
| testUnicastSocketOptions(t, ipv4.NewPacketConn(c)) |
| } |
| } |
| |
| func TestRawConnUnicastSocketOptions(t *testing.T) { |
| switch runtime.GOOS { |
| case "fuchsia", "hurd", "js", "nacl", "plan9", "windows": |
| t.Skipf("not supported on %s", runtime.GOOS) |
| } |
| if !nettest.SupportsRawSocket() { |
| t.Skipf("not supported on %s/%s", runtime.GOOS, runtime.GOARCH) |
| } |
| if _, err := nettest.RoutedInterface("ip4", net.FlagUp|net.FlagLoopback); err != nil { |
| t.Skipf("not available on %s", runtime.GOOS) |
| } |
| |
| c, err := net.ListenPacket("ip4:icmp", "127.0.0.1") |
| if err != nil { |
| t.Fatal(err) |
| } |
| defer c.Close() |
| |
| r, err := ipv4.NewRawConn(c) |
| if err != nil { |
| t.Fatal(err) |
| } |
| |
| testUnicastSocketOptions(t, r) |
| } |
| |
| type testIPv4UnicastConn interface { |
| TOS() (int, error) |
| SetTOS(int) error |
| TTL() (int, error) |
| SetTTL(int) error |
| } |
| |
| func testUnicastSocketOptions(t *testing.T, c testIPv4UnicastConn) { |
| t.Helper() |
| |
| tos := iana.DiffServCS0 | iana.NotECNTransport |
| switch runtime.GOOS { |
| case "windows": |
| // IP_TOS option is supported on Windows 8 and beyond. |
| t.Skipf("not supported on %s", runtime.GOOS) |
| } |
| |
| if err := c.SetTOS(tos); err != nil { |
| t.Fatal(err) |
| } |
| if v, err := c.TOS(); err != nil { |
| t.Fatal(err) |
| } else if v != tos { |
| t.Fatalf("got %v; want %v", v, tos) |
| } |
| const ttl = 255 |
| if err := c.SetTTL(ttl); err != nil { |
| t.Fatal(err) |
| } |
| if v, err := c.TTL(); err != nil { |
| t.Fatal(err) |
| } else if v != ttl { |
| t.Fatalf("got %v; want %v", v, ttl) |
| } |
| } |