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