// Copyright 2014 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" "reflect" "runtime" "testing" "golang.org/x/net/internal/nettest" "golang.org/x/net/ipv4" ) var icmpStringTests = []struct { in ipv4.ICMPType out string }{ {ipv4.ICMPTypeDestinationUnreachable, "destination unreachable"}, {256, "<nil>"}, } func TestICMPString(t *testing.T) { for _, tt := range icmpStringTests { s := tt.in.String() if s != tt.out { t.Errorf("got %s; want %s", s, tt.out) } } } func TestICMPFilter(t *testing.T) { switch runtime.GOOS { case "linux": default: t.Skipf("not supported on %s", runtime.GOOS) } var f ipv4.ICMPFilter for _, toggle := range []bool{false, true} { f.SetAll(toggle) for _, typ := range []ipv4.ICMPType{ ipv4.ICMPTypeDestinationUnreachable, ipv4.ICMPTypeEchoReply, ipv4.ICMPTypeTimeExceeded, ipv4.ICMPTypeParameterProblem, } { f.Accept(typ) if f.WillBlock(typ) { t.Errorf("ipv4.ICMPFilter.Set(%v, false) failed", typ) } f.Block(typ) if !f.WillBlock(typ) { t.Errorf("ipv4.ICMPFilter.Set(%v, true) failed", typ) } } } } func TestSetICMPFilter(t *testing.T) { switch runtime.GOOS { case "linux": default: t.Skipf("not supported on %s", runtime.GOOS) } if m, ok := nettest.SupportsRawIPSocket(); !ok { t.Skip(m) } c, err := net.ListenPacket("ip4:icmp", "127.0.0.1") if err != nil { t.Fatal(err) } defer c.Close() p := ipv4.NewPacketConn(c) var f ipv4.ICMPFilter f.SetAll(true) f.Accept(ipv4.ICMPTypeEcho) f.Accept(ipv4.ICMPTypeEchoReply) if err := p.SetICMPFilter(&f); err != nil { t.Fatal(err) } kf, err := p.ICMPFilter() if err != nil { t.Fatal(err) } if !reflect.DeepEqual(kf, &f) { t.Fatalf("got %#v; want %#v", kf, f) } }