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address_darwin_test.go
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// Copyright 2016 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 routebsd
import (
"net/netip"
"reflect"
"syscall"
"testing"
)
type parseAddrsOnDarwinTest struct {
attrs uint
b []byte
as []Addr
}
var parseAddrsOnDarwinLittleEndianTests = []parseAddrsOnDarwinTest{
{
syscall.RTA_DST | syscall.RTA_GATEWAY | syscall.RTA_NETMASK,
[]byte{
0x10, 0x2, 0x0, 0x0, 0xc0, 0xa8, 0x56, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x14, 0x12, 0x4, 0x0, 0x6, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
0x0, 0x0, 0x0, 0x0,
0x7, 0xff, 0xff, 0xff, 0xff, 0xff, 0xff,
},
[]Addr{
&InetAddr{IP: netip.AddrFrom4([4]byte{192, 168, 86, 0})},
&LinkAddr{Index: 4},
&InetAddr{IP: netip.AddrFrom4([4]byte{255, 255, 255, 255})},
nil,
nil,
nil,
nil,
nil,
},
},
{
syscall.RTA_DST | syscall.RTA_GATEWAY | syscall.RTA_NETMASK,
[]byte{
0x10, 0x02, 0x00, 0x00, 0x64, 0x71, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x14, 0x12, 0x21, 0x00, 0x01, 0x08, 0x00, 0x00,
0x75, 0x74, 0x75, 0x6e, 0x34, 0x33, 0x31, 0x39,
0x00, 0x00, 0x00, 0x00,
0x06, 0x02, 0x00, 0x00, 0xff, 0xff, 0x00, 0x00,
},
[]Addr{
&InetAddr{IP: netip.AddrFrom4([4]byte{100, 113, 0, 0})},
&LinkAddr{Index: 33, Name: "utun4319"},
&InetAddr{IP: netip.AddrFrom4([4]byte{255, 255, 0, 0})},
nil,
nil,
nil,
nil,
nil,
},
},
// route -n add -inet6 fd84:1b4e:6281:: -prefixlen 48 fe80::f22f:4bff:fe09:3bff%utun4319
// gw fe80:0000:0000:0000:f22f:4bff:fe09:3bff
{
syscall.RTA_DST | syscall.RTA_GATEWAY | syscall.RTA_NETMASK,
[]byte{
0x1c, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xfd, 0x84, 0x1b, 0x4e, 0x62, 0x81, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
0x1c, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xfe, 0x80, 0x00, 0x21, 0x00, 0x00, 0x00, 0x00,
0xf2, 0x2f, 0x4b, 0xff, 0xfe, 0x09, 0x3b, 0xff,
0x00, 0x00, 0x00, 0x00,
0x0e, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
},
[]Addr{
&InetAddr{IP: netip.AddrFrom16([16]byte{0xfd, 0x84, 0x1b, 0x4e, 0x62, 0x81})},
&InetAddr{IP: netip.AddrFrom16([16]byte{0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf2, 0x2f, 0x4b, 0xff, 0xfe, 0x09, 0x3b, 0xff})},
&InetAddr{IP: netip.AddrFrom16([16]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff})},
nil,
nil,
nil,
nil,
nil,
},
},
// golang/go#70528, the kernel can produce addresses of length 0
{
syscall.RTA_DST | syscall.RTA_GATEWAY | syscall.RTA_NETMASK,
[]byte{
0x00, 0x1e, 0x00, 0x00,
0x1c, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xfe, 0x80, 0x00, 0x21, 0x00, 0x00, 0x00, 0x00,
0xf2, 0x2f, 0x4b, 0xff, 0xfe, 0x09, 0x3b, 0xff,
0x00, 0x00, 0x00, 0x00,
0x0e, 0x1e, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xff, 0xff, 0xff, 0xff, 0xff, 0xff, 0x00, 0x00,
},
[]Addr{
&InetAddr{IP: netip.AddrFrom16([16]byte{})},
&InetAddr{IP: netip.AddrFrom16([16]byte{0xfe, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0xf2, 0x2f, 0x4b, 0xff, 0xfe, 0x09, 0x3b, 0xff})},
&InetAddr{IP: netip.AddrFrom16([16]byte{0xff, 0xff, 0xff, 0xff, 0xff, 0xff})},
nil,
nil,
nil,
nil,
nil,
},
},
// Additional case: golang/go/issues/70528#issuecomment-2498692877
{
syscall.RTA_DST | syscall.RTA_GATEWAY | syscall.RTA_NETMASK,
[]byte{
0x84, 0x00, 0x05, 0x04, 0x01, 0x00, 0x00, 0x00, 0x03, 0x08, 0x00, 0x01, 0x15, 0x00, 0x00, 0x00,
0x1B, 0x01, 0x00, 0x00, 0xF5, 0x5A, 0x00, 0x00, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x02, 0x00, 0x00,
0x14, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00,
},
[]Addr{
&InetAddr{IP: netip.AddrFrom4([4]byte{0x0, 0x0, 0x0, 0x0})},
nil,
nil,
nil,
nil,
nil,
nil,
nil,
},
},
}
func TestParseAddrsOnDarwin(t *testing.T) {
tests := parseAddrsOnDarwinLittleEndianTests
if nativeEndian != littleEndian {
t.Skip("no test for non-little endian machine yet")
}
for i, tt := range tests {
as, err := parseAddrs(tt.attrs, tt.b)
if err != nil {
t.Error(i, err)
continue
}
if !reflect.DeepEqual(as, tt.as) {
t.Errorf("#%d: got %+v; want %+v", i, as, tt.as)
continue
}
}
}