443 lines
10 KiB
Go
443 lines
10 KiB
Go
// Copyright 2015 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 icmp_test
|
|
|
|
import (
|
|
"fmt"
|
|
"net"
|
|
"reflect"
|
|
"testing"
|
|
|
|
"golang.org/x/net/icmp"
|
|
"golang.org/x/net/internal/iana"
|
|
"golang.org/x/net/ipv4"
|
|
"golang.org/x/net/ipv6"
|
|
)
|
|
|
|
var marshalAndParseMultipartMessageForIPv4Tests = []icmp.Message{
|
|
{
|
|
Type: ipv4.ICMPTypeDestinationUnreachable, Code: 15,
|
|
Body: &icmp.DstUnreach{
|
|
Data: []byte("ERROR-INVOKING-PACKET"),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.MPLSLabelStack{
|
|
Class: 1,
|
|
Type: 1,
|
|
Labels: []icmp.MPLSLabel{
|
|
{
|
|
Label: 16014,
|
|
TC: 0x4,
|
|
S: true,
|
|
TTL: 255,
|
|
},
|
|
},
|
|
},
|
|
&icmp.InterfaceInfo{
|
|
Class: 2,
|
|
Type: 0x0f,
|
|
Interface: &net.Interface{
|
|
Index: 15,
|
|
Name: "en101",
|
|
MTU: 8192,
|
|
},
|
|
Addr: &net.IPAddr{
|
|
IP: net.IPv4(192, 168, 0, 1).To4(),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
Type: ipv4.ICMPTypeTimeExceeded, Code: 1,
|
|
Body: &icmp.TimeExceeded{
|
|
Data: []byte("ERROR-INVOKING-PACKET"),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.InterfaceInfo{
|
|
Class: 2,
|
|
Type: 0x0f,
|
|
Interface: &net.Interface{
|
|
Index: 15,
|
|
Name: "en101",
|
|
MTU: 8192,
|
|
},
|
|
Addr: &net.IPAddr{
|
|
IP: net.IPv4(192, 168, 0, 1).To4(),
|
|
},
|
|
},
|
|
&icmp.MPLSLabelStack{
|
|
Class: 1,
|
|
Type: 1,
|
|
Labels: []icmp.MPLSLabel{
|
|
{
|
|
Label: 16014,
|
|
TC: 0x4,
|
|
S: true,
|
|
TTL: 255,
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
Type: ipv4.ICMPTypeParameterProblem, Code: 2,
|
|
Body: &icmp.ParamProb{
|
|
Pointer: 8,
|
|
Data: []byte("ERROR-INVOKING-PACKET"),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.MPLSLabelStack{
|
|
Class: 1,
|
|
Type: 1,
|
|
Labels: []icmp.MPLSLabel{
|
|
{
|
|
Label: 16014,
|
|
TC: 0x4,
|
|
S: true,
|
|
TTL: 255,
|
|
},
|
|
},
|
|
},
|
|
&icmp.InterfaceInfo{
|
|
Class: 2,
|
|
Type: 0x0f,
|
|
Interface: &net.Interface{
|
|
Index: 15,
|
|
Name: "en101",
|
|
MTU: 8192,
|
|
},
|
|
Addr: &net.IPAddr{
|
|
IP: net.IPv4(192, 168, 0, 1).To4(),
|
|
},
|
|
},
|
|
&icmp.InterfaceInfo{
|
|
Class: 2,
|
|
Type: 0x2f,
|
|
Interface: &net.Interface{
|
|
Index: 16,
|
|
Name: "en102",
|
|
MTU: 8192,
|
|
},
|
|
Addr: &net.IPAddr{
|
|
IP: net.IPv4(192, 168, 0, 2).To4(),
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
func TestMarshalAndParseMultipartMessageForIPv4(t *testing.T) {
|
|
for i, tt := range marshalAndParseMultipartMessageForIPv4Tests {
|
|
b, err := tt.Marshal(nil)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if b[5] != 32 {
|
|
t.Errorf("#%v: got %v; want 32", i, b[5])
|
|
}
|
|
m, err := icmp.ParseMessage(iana.ProtocolICMP, b)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if m.Type != tt.Type || m.Code != tt.Code {
|
|
t.Errorf("#%v: got %v; want %v", i, m, &tt)
|
|
}
|
|
switch m.Type {
|
|
case ipv4.ICMPTypeDestinationUnreachable:
|
|
got, want := m.Body.(*icmp.DstUnreach), tt.Body.(*icmp.DstUnreach)
|
|
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
|
|
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
|
|
}
|
|
if len(got.Data) != 128 {
|
|
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
|
|
}
|
|
case ipv4.ICMPTypeTimeExceeded:
|
|
got, want := m.Body.(*icmp.TimeExceeded), tt.Body.(*icmp.TimeExceeded)
|
|
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
|
|
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
|
|
}
|
|
if len(got.Data) != 128 {
|
|
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
|
|
}
|
|
case ipv4.ICMPTypeParameterProblem:
|
|
got, want := m.Body.(*icmp.ParamProb), tt.Body.(*icmp.ParamProb)
|
|
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
|
|
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
|
|
}
|
|
if len(got.Data) != 128 {
|
|
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
var marshalAndParseMultipartMessageForIPv6Tests = []icmp.Message{
|
|
{
|
|
Type: ipv6.ICMPTypeDestinationUnreachable, Code: 6,
|
|
Body: &icmp.DstUnreach{
|
|
Data: []byte("ERROR-INVOKING-PACKET"),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.MPLSLabelStack{
|
|
Class: 1,
|
|
Type: 1,
|
|
Labels: []icmp.MPLSLabel{
|
|
{
|
|
Label: 16014,
|
|
TC: 0x4,
|
|
S: true,
|
|
TTL: 255,
|
|
},
|
|
},
|
|
},
|
|
&icmp.InterfaceInfo{
|
|
Class: 2,
|
|
Type: 0x0f,
|
|
Interface: &net.Interface{
|
|
Index: 15,
|
|
Name: "en101",
|
|
MTU: 8192,
|
|
},
|
|
Addr: &net.IPAddr{
|
|
IP: net.ParseIP("fe80::1"),
|
|
Zone: "en101",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
{
|
|
Type: ipv6.ICMPTypeTimeExceeded, Code: 1,
|
|
Body: &icmp.TimeExceeded{
|
|
Data: []byte("ERROR-INVOKING-PACKET"),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.InterfaceInfo{
|
|
Class: 2,
|
|
Type: 0x0f,
|
|
Interface: &net.Interface{
|
|
Index: 15,
|
|
Name: "en101",
|
|
MTU: 8192,
|
|
},
|
|
Addr: &net.IPAddr{
|
|
IP: net.ParseIP("fe80::1"),
|
|
Zone: "en101",
|
|
},
|
|
},
|
|
&icmp.MPLSLabelStack{
|
|
Class: 1,
|
|
Type: 1,
|
|
Labels: []icmp.MPLSLabel{
|
|
{
|
|
Label: 16014,
|
|
TC: 0x4,
|
|
S: true,
|
|
TTL: 255,
|
|
},
|
|
},
|
|
},
|
|
&icmp.InterfaceInfo{
|
|
Class: 2,
|
|
Type: 0x2f,
|
|
Interface: &net.Interface{
|
|
Index: 16,
|
|
Name: "en102",
|
|
MTU: 8192,
|
|
},
|
|
Addr: &net.IPAddr{
|
|
IP: net.ParseIP("fe80::1"),
|
|
Zone: "en102",
|
|
},
|
|
},
|
|
},
|
|
},
|
|
},
|
|
}
|
|
|
|
func TestMarshalAndParseMultipartMessageForIPv6(t *testing.T) {
|
|
pshicmp := icmp.IPv6PseudoHeader(net.ParseIP("fe80::1"), net.ParseIP("ff02::1"))
|
|
for i, tt := range marshalAndParseMultipartMessageForIPv6Tests {
|
|
for _, psh := range [][]byte{pshicmp, nil} {
|
|
b, err := tt.Marshal(psh)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if b[4] != 16 {
|
|
t.Errorf("#%v: got %v; want 16", i, b[4])
|
|
}
|
|
m, err := icmp.ParseMessage(iana.ProtocolIPv6ICMP, b)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
if m.Type != tt.Type || m.Code != tt.Code {
|
|
t.Errorf("#%v: got %v; want %v", i, m, &tt)
|
|
}
|
|
switch m.Type {
|
|
case ipv6.ICMPTypeDestinationUnreachable:
|
|
got, want := m.Body.(*icmp.DstUnreach), tt.Body.(*icmp.DstUnreach)
|
|
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
|
|
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
|
|
}
|
|
if len(got.Data) != 128 {
|
|
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
|
|
}
|
|
case ipv6.ICMPTypeTimeExceeded:
|
|
got, want := m.Body.(*icmp.TimeExceeded), tt.Body.(*icmp.TimeExceeded)
|
|
if !reflect.DeepEqual(got.Extensions, want.Extensions) {
|
|
t.Error(dumpExtensions(i, got.Extensions, want.Extensions))
|
|
}
|
|
if len(got.Data) != 128 {
|
|
t.Errorf("#%v: got %v; want 128", i, len(got.Data))
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func dumpExtensions(i int, gotExts, wantExts []icmp.Extension) string {
|
|
var s string
|
|
for j, got := range gotExts {
|
|
switch got := got.(type) {
|
|
case *icmp.MPLSLabelStack:
|
|
want := wantExts[j].(*icmp.MPLSLabelStack)
|
|
if !reflect.DeepEqual(got, want) {
|
|
s += fmt.Sprintf("#%v/%v: got %#v; want %#v\n", i, j, got, want)
|
|
}
|
|
case *icmp.InterfaceInfo:
|
|
want := wantExts[j].(*icmp.InterfaceInfo)
|
|
if !reflect.DeepEqual(got, want) {
|
|
s += fmt.Sprintf("#%v/%v: got %#v, %#v, %#v; want %#v, %#v, %#v\n", i, j, got, got.Interface, got.Addr, want, want.Interface, want.Addr)
|
|
}
|
|
}
|
|
}
|
|
return s[:len(s)-1]
|
|
}
|
|
|
|
var multipartMessageBodyLenTests = []struct {
|
|
proto int
|
|
in icmp.MessageBody
|
|
out int
|
|
}{
|
|
{
|
|
iana.ProtocolICMP,
|
|
&icmp.DstUnreach{
|
|
Data: make([]byte, ipv4.HeaderLen),
|
|
},
|
|
4 + ipv4.HeaderLen, // unused and original datagram
|
|
},
|
|
{
|
|
iana.ProtocolICMP,
|
|
&icmp.TimeExceeded{
|
|
Data: make([]byte, ipv4.HeaderLen),
|
|
},
|
|
4 + ipv4.HeaderLen, // unused and original datagram
|
|
},
|
|
{
|
|
iana.ProtocolICMP,
|
|
&icmp.ParamProb{
|
|
Data: make([]byte, ipv4.HeaderLen),
|
|
},
|
|
4 + ipv4.HeaderLen, // [pointer, unused] and original datagram
|
|
},
|
|
|
|
{
|
|
iana.ProtocolICMP,
|
|
&icmp.ParamProb{
|
|
Data: make([]byte, ipv4.HeaderLen),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.MPLSLabelStack{},
|
|
},
|
|
},
|
|
4 + 4 + 4 + 0 + 128, // [pointer, length, unused], extension header, object header, object payload, original datagram
|
|
},
|
|
{
|
|
iana.ProtocolICMP,
|
|
&icmp.ParamProb{
|
|
Data: make([]byte, 128),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.MPLSLabelStack{},
|
|
},
|
|
},
|
|
4 + 4 + 4 + 0 + 128, // [pointer, length, unused], extension header, object header, object payload and original datagram
|
|
},
|
|
{
|
|
iana.ProtocolICMP,
|
|
&icmp.ParamProb{
|
|
Data: make([]byte, 129),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.MPLSLabelStack{},
|
|
},
|
|
},
|
|
4 + 4 + 4 + 0 + 132, // [pointer, length, unused], extension header, object header, object payload and original datagram
|
|
},
|
|
|
|
{
|
|
iana.ProtocolIPv6ICMP,
|
|
&icmp.DstUnreach{
|
|
Data: make([]byte, ipv6.HeaderLen),
|
|
},
|
|
4 + ipv6.HeaderLen, // unused and original datagram
|
|
},
|
|
{
|
|
iana.ProtocolIPv6ICMP,
|
|
&icmp.PacketTooBig{
|
|
Data: make([]byte, ipv6.HeaderLen),
|
|
},
|
|
4 + ipv6.HeaderLen, // mtu and original datagram
|
|
},
|
|
{
|
|
iana.ProtocolIPv6ICMP,
|
|
&icmp.TimeExceeded{
|
|
Data: make([]byte, ipv6.HeaderLen),
|
|
},
|
|
4 + ipv6.HeaderLen, // unused and original datagram
|
|
},
|
|
{
|
|
iana.ProtocolIPv6ICMP,
|
|
&icmp.ParamProb{
|
|
Data: make([]byte, ipv6.HeaderLen),
|
|
},
|
|
4 + ipv6.HeaderLen, // pointer and original datagram
|
|
},
|
|
|
|
{
|
|
iana.ProtocolIPv6ICMP,
|
|
&icmp.DstUnreach{
|
|
Data: make([]byte, 127),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.MPLSLabelStack{},
|
|
},
|
|
},
|
|
4 + 4 + 4 + 0 + 128, // [length, unused], extension header, object header, object payload and original datagram
|
|
},
|
|
{
|
|
iana.ProtocolIPv6ICMP,
|
|
&icmp.DstUnreach{
|
|
Data: make([]byte, 128),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.MPLSLabelStack{},
|
|
},
|
|
},
|
|
4 + 4 + 4 + 0 + 128, // [length, unused], extension header, object header, object payload and original datagram
|
|
},
|
|
{
|
|
iana.ProtocolIPv6ICMP,
|
|
&icmp.DstUnreach{
|
|
Data: make([]byte, 129),
|
|
Extensions: []icmp.Extension{
|
|
&icmp.MPLSLabelStack{},
|
|
},
|
|
},
|
|
4 + 4 + 4 + 0 + 136, // [length, unused], extension header, object header, object payload and original datagram
|
|
},
|
|
}
|
|
|
|
func TestMultipartMessageBodyLen(t *testing.T) {
|
|
for i, tt := range multipartMessageBodyLenTests {
|
|
if out := tt.in.Len(tt.proto); out != tt.out {
|
|
t.Errorf("#%d: got %d; want %d", i, out, tt.out)
|
|
}
|
|
}
|
|
}
|