1// Copyright 2016 The Go Authors. All rights reserved.
2// Use of this source code is governed by a BSD-style
3// license that can be found in the LICENSE file.
4
5//go:build darwin || dragonfly || freebsd || netbsd || openbsd
6// +build darwin dragonfly freebsd netbsd openbsd
7
8package route
9
10import (
11	"reflect"
12	"testing"
13)
14
15type parseAddrsTest struct {
16	attrs uint
17	fn    func(int, []byte) (int, Addr, error)
18	b     []byte
19	as    []Addr
20}
21
22var parseAddrsLittleEndianTests = []parseAddrsTest{
23	{
24		sysRTA_DST | sysRTA_GATEWAY | sysRTA_NETMASK | sysRTA_BRD,
25		parseKernelInetAddr,
26		[]byte{
27			0x38, 0x12, 0x0, 0x0, 0xff, 0xff, 0xff, 0x0,
28			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
29			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
30			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
31			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
32			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
33			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
34
35			0x38, 0x12, 0x2, 0x0, 0x6, 0x3, 0x6, 0x0,
36			0x65, 0x6d, 0x31, 0x0, 0xc, 0x29, 0x66, 0x2c,
37			0xdc, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
38			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
39			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
40			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
41			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
42
43			0x10, 0x2, 0x0, 0x0, 0xac, 0x10, 0xdc, 0xb4,
44			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
45
46			0x10, 0x2, 0x0, 0x0, 0xac, 0x10, 0xdc, 0xff,
47			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
48		},
49		[]Addr{
50			&LinkAddr{Index: 0},
51			&LinkAddr{Index: 2, Name: "em1", Addr: []byte{0x00, 0x0c, 0x29, 0x66, 0x2c, 0xdc}},
52			&Inet4Addr{IP: [4]byte{172, 16, 220, 180}},
53			nil,
54			nil,
55			nil,
56			nil,
57			&Inet4Addr{IP: [4]byte{172, 16, 220, 255}},
58		},
59	},
60	{
61		sysRTA_NETMASK | sysRTA_IFP | sysRTA_IFA,
62		parseKernelInetAddr,
63		[]byte{
64			0x7, 0x0, 0x0, 0x0, 0xff, 0xff, 0xff, 0x0,
65
66			0x18, 0x12, 0xa, 0x0, 0x87, 0x8, 0x0, 0x0,
67			0x76, 0x6c, 0x61, 0x6e, 0x35, 0x36, 0x38, 0x32,
68			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
69
70			0x10, 0x2, 0x0, 0x0, 0xa9, 0xfe, 0x0, 0x1,
71			0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0,
72		},
73		[]Addr{
74			nil,
75			nil,
76			&Inet4Addr{IP: [4]byte{255, 255, 255, 0}},
77			nil,
78			&LinkAddr{Index: 10, Name: "vlan5682"},
79			&Inet4Addr{IP: [4]byte{169, 254, 0, 1}},
80			nil,
81			nil,
82		},
83	},
84}
85
86func TestParseAddrs(t *testing.T) {
87	tests := parseAddrsLittleEndianTests
88	if nativeEndian != littleEndian {
89		t.Skip("no test for non-little endian machine yet")
90	}
91
92	for i, tt := range tests {
93		as, err := parseAddrs(tt.attrs, tt.fn, tt.b)
94		if err != nil {
95			t.Error(i, err)
96			continue
97		}
98		as = as[:8] // the list varies between operating systems
99		if !reflect.DeepEqual(as, tt.as) {
100			t.Errorf("#%d: got %+v; want %+v", i, as, tt.as)
101			continue
102		}
103	}
104}
105