mirror of
https://github.com/dutchcoders/transfer.sh.git
synced 2024-12-28 13:20:19 +01:00
343 lines
7.7 KiB
Go
343 lines
7.7 KiB
Go
// Copyright 2014 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package icmp_test
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import (
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"bytes"
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"net"
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"reflect"
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"testing"
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"golang.org/x/net/icmp"
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"golang.org/x/net/internal/iana"
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"golang.org/x/net/ipv4"
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"golang.org/x/net/ipv6"
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)
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func TestMarshalAndParseMessage(t *testing.T) {
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fn := func(t *testing.T, proto int, tms []icmp.Message) {
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var pshs [][]byte
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switch proto {
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case iana.ProtocolICMP:
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pshs = [][]byte{nil}
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case iana.ProtocolIPv6ICMP:
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pshs = [][]byte{
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icmp.IPv6PseudoHeader(net.ParseIP("fe80::1"), net.ParseIP("ff02::1")),
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nil,
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}
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}
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for i, tm := range tms {
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for _, psh := range pshs {
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b, err := tm.Marshal(psh)
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if err != nil {
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t.Fatalf("#%d: %v", i, err)
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}
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m, err := icmp.ParseMessage(proto, b)
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if err != nil {
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t.Fatalf("#%d: %v", i, err)
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}
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if m.Type != tm.Type || m.Code != tm.Code {
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t.Errorf("#%d: got %#v; want %#v", i, m, &tm)
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continue
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}
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if !reflect.DeepEqual(m.Body, tm.Body) {
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t.Errorf("#%d: got %#v; want %#v", i, m.Body, tm.Body)
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continue
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}
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}
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}
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}
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t.Run("IPv4", func(t *testing.T) {
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fn(t, iana.ProtocolICMP,
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[]icmp.Message{
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{
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Type: ipv4.ICMPTypeDestinationUnreachable, Code: 15,
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Body: &icmp.DstUnreach{
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Data: []byte("ERROR-INVOKING-PACKET"),
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},
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},
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{
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Type: ipv4.ICMPTypeTimeExceeded, Code: 1,
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Body: &icmp.TimeExceeded{
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Data: []byte("ERROR-INVOKING-PACKET"),
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},
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},
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{
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Type: ipv4.ICMPTypeParameterProblem, Code: 2,
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Body: &icmp.ParamProb{
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Pointer: 8,
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Data: []byte("ERROR-INVOKING-PACKET"),
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},
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},
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{
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Type: ipv4.ICMPTypeEcho, Code: 0,
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Body: &icmp.Echo{
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ID: 1, Seq: 2,
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Data: []byte("HELLO-R-U-THERE"),
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},
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},
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{
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Type: ipv4.ICMPTypeExtendedEchoRequest, Code: 0,
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Body: &icmp.ExtendedEchoRequest{
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ID: 1, Seq: 2,
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Extensions: []icmp.Extension{
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&icmp.InterfaceIdent{
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Class: 3,
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Type: 1,
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Name: "en101",
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},
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},
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},
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},
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{
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Type: ipv4.ICMPTypeExtendedEchoReply, Code: 0,
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Body: &icmp.ExtendedEchoReply{
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State: 4 /* Delay */, Active: true, IPv4: true,
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},
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},
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})
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})
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t.Run("IPv6", func(t *testing.T) {
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fn(t, iana.ProtocolIPv6ICMP,
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[]icmp.Message{
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{
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Type: ipv6.ICMPTypeDestinationUnreachable, Code: 6,
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Body: &icmp.DstUnreach{
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Data: []byte("ERROR-INVOKING-PACKET"),
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},
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},
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{
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Type: ipv6.ICMPTypePacketTooBig, Code: 0,
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Body: &icmp.PacketTooBig{
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MTU: 1<<16 - 1,
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Data: []byte("ERROR-INVOKING-PACKET"),
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},
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},
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{
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Type: ipv6.ICMPTypeTimeExceeded, Code: 1,
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Body: &icmp.TimeExceeded{
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Data: []byte("ERROR-INVOKING-PACKET"),
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},
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},
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{
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Type: ipv6.ICMPTypeParameterProblem, Code: 2,
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Body: &icmp.ParamProb{
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Pointer: 8,
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Data: []byte("ERROR-INVOKING-PACKET"),
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},
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},
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{
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Type: ipv6.ICMPTypeEchoRequest, Code: 0,
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Body: &icmp.Echo{
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ID: 1, Seq: 2,
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Data: []byte("HELLO-R-U-THERE"),
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},
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},
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{
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Type: ipv6.ICMPTypeExtendedEchoRequest, Code: 0,
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Body: &icmp.ExtendedEchoRequest{
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ID: 1, Seq: 2,
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Extensions: []icmp.Extension{
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&icmp.InterfaceIdent{
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Class: 3,
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Type: 2,
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Index: 911,
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},
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},
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},
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},
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{
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Type: ipv6.ICMPTypeExtendedEchoReply, Code: 0,
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Body: &icmp.ExtendedEchoReply{
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State: 5 /* Probe */, Active: true, IPv6: true,
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},
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},
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})
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})
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}
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func TestMarshalAndParseRawMessage(t *testing.T) {
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t.Run("RawBody", func(t *testing.T) {
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for i, tt := range []struct {
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m icmp.Message
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wire []byte
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parseShouldFail bool
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}{
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{ // Nil body
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m: icmp.Message{
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Type: ipv4.ICMPTypeDestinationUnreachable, Code: 127,
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},
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wire: []byte{
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0x03, 0x7f, 0xfc, 0x80,
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},
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parseShouldFail: true,
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},
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{ // Empty body
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m: icmp.Message{
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Type: ipv6.ICMPTypeDestinationUnreachable, Code: 128,
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Body: &icmp.RawBody{},
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},
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wire: []byte{
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0x01, 0x80, 0x00, 0x00,
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},
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parseShouldFail: true,
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},
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{ // Crafted body
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m: icmp.Message{
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Type: ipv6.ICMPTypeDuplicateAddressConfirmation, Code: 129,
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Body: &icmp.RawBody{
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Data: []byte{0xca, 0xfe},
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},
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},
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wire: []byte{
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0x9e, 0x81, 0x00, 0x00,
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0xca, 0xfe,
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},
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parseShouldFail: false,
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},
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} {
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b, err := tt.m.Marshal(nil)
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if err != nil {
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t.Errorf("#%d: %v", i, err)
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continue
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}
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if !bytes.Equal(b, tt.wire) {
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t.Errorf("#%d: got %#v; want %#v", i, b, tt.wire)
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continue
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}
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m, err := icmp.ParseMessage(tt.m.Type.Protocol(), b)
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if err != nil != tt.parseShouldFail {
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t.Errorf("#%d: got %v, %v", i, m, err)
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continue
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}
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if tt.parseShouldFail {
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continue
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}
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if m.Type != tt.m.Type || m.Code != tt.m.Code {
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t.Errorf("#%d: got %v; want %v", i, m, tt.m)
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continue
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}
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if !bytes.Equal(m.Body.(*icmp.RawBody).Data, tt.m.Body.(*icmp.RawBody).Data) {
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t.Errorf("#%d: got %#v; want %#v", i, m.Body, tt.m.Body)
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continue
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}
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}
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})
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t.Run("RawExtension", func(t *testing.T) {
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for i, tt := range []struct {
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m icmp.Message
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wire []byte
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}{
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{ // Unaligned data and nil extension
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m: icmp.Message{
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Type: ipv6.ICMPTypeDestinationUnreachable, Code: 130,
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Body: &icmp.DstUnreach{
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Data: []byte("ERROR-INVOKING-PACKET"),
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},
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},
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wire: []byte{
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0x01, 0x82, 0x00, 0x00,
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0x00, 0x00, 0x00, 0x00,
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'E', 'R', 'R', 'O',
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'R', '-', 'I', 'N',
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'V', 'O', 'K', 'I',
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'N', 'G', '-', 'P',
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'A', 'C', 'K', 'E',
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'T',
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},
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},
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{ // Unaligned data and empty extension
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m: icmp.Message{
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Type: ipv6.ICMPTypeDestinationUnreachable, Code: 131,
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Body: &icmp.DstUnreach{
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Data: []byte("ERROR-INVOKING-PACKET"),
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Extensions: []icmp.Extension{
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&icmp.RawExtension{},
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},
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},
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},
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wire: []byte{
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0x01, 0x83, 0x00, 0x00,
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0x02, 0x00, 0x00, 0x00,
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'E', 'R', 'R', 'O',
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'R', '-', 'I', 'N',
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'V', 'O', 'K', 'I',
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'N', 'G', '-', 'P',
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'A', 'C', 'K', 'E',
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'T',
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0x20, 0x00, 0xdf, 0xff,
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},
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},
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{ // Nil extension
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m: icmp.Message{
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Type: ipv6.ICMPTypeExtendedEchoRequest, Code: 132,
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Body: &icmp.ExtendedEchoRequest{
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ID: 1, Seq: 2, Local: true,
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},
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},
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wire: []byte{
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0xa0, 0x84, 0x00, 0x00,
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0x00, 0x01, 0x02, 0x01,
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},
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},
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{ // Empty extension
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m: icmp.Message{
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Type: ipv6.ICMPTypeExtendedEchoRequest, Code: 133,
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Body: &icmp.ExtendedEchoRequest{
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ID: 1, Seq: 2, Local: true,
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Extensions: []icmp.Extension{
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&icmp.RawExtension{},
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},
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},
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},
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wire: []byte{
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0xa0, 0x85, 0x00, 0x00,
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0x00, 0x01, 0x02, 0x01,
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0x20, 0x00, 0xdf, 0xff,
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},
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},
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{ // Crafted extension
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m: icmp.Message{
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Type: ipv6.ICMPTypeExtendedEchoRequest, Code: 134,
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Body: &icmp.ExtendedEchoRequest{
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ID: 1, Seq: 2, Local: true,
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Extensions: []icmp.Extension{
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&icmp.RawExtension{
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Data: []byte("CRAFTED"),
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},
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},
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},
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},
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wire: []byte{
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0xa0, 0x86, 0x00, 0x00,
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0x00, 0x01, 0x02, 0x01,
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0x20, 0x00, 0xc3, 0x21,
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'C', 'R', 'A', 'F',
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'T', 'E', 'D',
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},
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},
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} {
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b, err := tt.m.Marshal(nil)
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if err != nil {
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t.Errorf("#%d: %v", i, err)
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continue
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}
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if !bytes.Equal(b, tt.wire) {
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t.Errorf("#%d: got %#v; want %#v", i, b, tt.wire)
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continue
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}
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m, err := icmp.ParseMessage(tt.m.Type.Protocol(), b)
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if err != nil {
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t.Errorf("#%d: %v", i, err)
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continue
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}
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if m.Type != tt.m.Type || m.Code != tt.m.Code {
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t.Errorf("#%d: got %v; want %v", i, m, tt.m)
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continue
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}
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}
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})
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}
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