blob: 479af8e7cbdcbdbf5fecaa42b99971465ad928df [file] [log] [blame]
// 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 icmp
import (
"encoding/binary"
"net"
"reflect"
"runtime"
"testing"
"golang.org/x/net/internal/socket"
"golang.org/x/net/ipv4"
)
func TestParseIPv4Header(t *testing.T) {
switch socket.NativeEndian {
case binary.LittleEndian:
t.Run("LittleEndian", func(t *testing.T) {
// TODO(mikio): Add platform dependent wire
// header formats when we support new
// platforms.
wireHeaderFromKernel := [ipv4.HeaderLen]byte{
0x45, 0x01, 0xbe, 0xef,
0xca, 0xfe, 0x45, 0xdc,
0xff, 0x01, 0xde, 0xad,
172, 16, 254, 254,
192, 168, 0, 1,
}
wireHeaderFromTradBSDKernel := [ipv4.HeaderLen]byte{
0x45, 0x01, 0xef, 0xbe,
0xca, 0xfe, 0x45, 0xdc,
0xff, 0x01, 0xde, 0xad,
172, 16, 254, 254,
192, 168, 0, 1,
}
th := &ipv4.Header{
Version: ipv4.Version,
Len: ipv4.HeaderLen,
TOS: 1,
TotalLen: 0xbeef,
ID: 0xcafe,
Flags: ipv4.DontFragment,
FragOff: 1500,
TTL: 255,
Protocol: 1,
Checksum: 0xdead,
Src: net.IPv4(172, 16, 254, 254),
Dst: net.IPv4(192, 168, 0, 1),
}
var wh []byte
switch runtime.GOOS {
case "darwin", "ios":
wh = wireHeaderFromTradBSDKernel[:]
case "freebsd":
if freebsdVersion >= 1000000 {
wh = wireHeaderFromKernel[:]
} else {
wh = wireHeaderFromTradBSDKernel[:]
}
default:
wh = wireHeaderFromKernel[:]
}
h, err := ParseIPv4Header(wh)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(h, th) {
t.Fatalf("got %#v; want %#v", h, th)
}
})
}
}