// Copyright (c) 2020 Tailscale Inc & 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 tailcfg
import (
"encoding"
"reflect"
"strings"
"testing"
"time"
"inet.af/netaddr"
"tailscale.com/types/wgkey"
)
func fieldsOf(t reflect.Type) (fields []string) {
for i := 0; i < t.NumField(); i++ {
fields = append(fields, t.Field(i).Name)
}
return
}
func TestHostinfoEqual(t *testing.T) {
hiHandles := []string{
"IPNVersion", "FrontendLogID", "BackendLogID",
"OS", "OSVersion", "Package", "DeviceModel", "Hostname",
"ShieldsUp", "ShareeNode",
"GoArch",
"RoutableIPs", "RequestTags",
"Services", "NetInfo",
}
if have := fieldsOf(reflect.TypeOf(Hostinfo{})); !reflect.DeepEqual(have, hiHandles) {
t.Errorf("Hostinfo.Equal check might be out of sync\nfields: %q\nhandled: %q\n",
have, hiHandles)
}
nets := func(strs ...string) (ns []netaddr.IPPrefix) {
for _, s := range strs {
n, err := netaddr.ParseIPPrefix(s)
if err != nil {
panic(err)
}
ns = append(ns, n)
}
return ns
}
tests := []struct {
a, b *Hostinfo
want bool
}{
{
nil,
nil,
true,
},
{
&Hostinfo{},
nil,
false,
},
{
nil,
&Hostinfo{},
false,
},
{
&Hostinfo{},
&Hostinfo{},
true,
},
{
&Hostinfo{IPNVersion: "1"},
&Hostinfo{IPNVersion: "2"},
false,
},
{
&Hostinfo{IPNVersion: "2"},
&Hostinfo{IPNVersion: "2"},
true,
},
{
&Hostinfo{FrontendLogID: "1"},
&Hostinfo{FrontendLogID: "2"},
false,
},
{
&Hostinfo{FrontendLogID: "2"},
&Hostinfo{FrontendLogID: "2"},
true,
},
{
&Hostinfo{BackendLogID: "1"},
&Hostinfo{BackendLogID: "2"},
false,
},
{
&Hostinfo{BackendLogID: "2"},
&Hostinfo{BackendLogID: "2"},
true,
},
{
&Hostinfo{OS: "windows"},
&Hostinfo{OS: "linux"},
false,
},
{
&Hostinfo{OS: "windows"},
&Hostinfo{OS: "windows"},
true,
},
{
&Hostinfo{Hostname: "vega"},
&Hostinfo{Hostname: "iris"},
false,
},
{
&Hostinfo{Hostname: "vega"},
&Hostinfo{Hostname: "vega"},
true,
},
{
&Hostinfo{RoutableIPs: nil},
&Hostinfo{RoutableIPs: nets("10.0.0.0/16")},
false,
},
{
&Hostinfo{RoutableIPs: nets("10.1.0.0/16", "192.168.1.0/24")},
&Hostinfo{RoutableIPs: nets("10.2.0.0/16", "192.168.2.0/24")},
false,
},
{
&Hostinfo{RoutableIPs: nets("10.1.0.0/16", "192.168.1.0/24")},
&Hostinfo{RoutableIPs: nets("10.1.0.0/16", "192.168.2.0/24")},
false,
},
{
&Hostinfo{RoutableIPs: nets("10.1.0.0/16", "192.168.1.0/24")},
&Hostinfo{RoutableIPs: nets("10.1.0.0/16", "192.168.1.0/24")},
true,
},
{
&Hostinfo{RequestTags: []string{"abc", "def"}},
&Hostinfo{RequestTags: []string{"abc", "def"}},
true,
},
{
&Hostinfo{RequestTags: []string{"abc", "def"}},
&Hostinfo{RequestTags: []string{"abc", "123"}},
false,
},
{
&Hostinfo{RequestTags: []string{}},
&Hostinfo{RequestTags: []string{"abc"}},
false,
},
{
&Hostinfo{Services: []Service{Service{Proto: TCP, Port: 1234, Description: "foo"}}},
&Hostinfo{Services: []Service{Service{Proto: UDP, Port: 2345, Description: "bar"}}},
false,
},
{
&Hostinfo{Services: []Service{Service{Proto: TCP, Port: 1234, Description: "foo"}}},
&Hostinfo{Services: []Service{Service{Proto: TCP, Port: 1234, Description: "foo"}}},
true,
},
{
&Hostinfo{ShareeNode: true},
&Hostinfo{},
false,
},
}
for i, tt := range tests {
got := tt.a.Equal(tt.b)
if got != tt.want {
t.Errorf("%d. Equal = %v; want %v", i, got, tt.want)
}
}
}
func TestNodeEqual(t *testing.T) {
nodeHandles := []string{
"ID", "StableID", "Name", "User", "Sharer",
"Key", "KeyExpiry", "Machine", "DiscoKey",
"Addresses", "AllowedIPs", "Endpoints", "DERP", "Hostinfo",
"Created", "LastSeen", "KeepAlive", "MachineAuthorized",
"ComputedName", "computedHostIfDifferent", "ComputedNameWithHost",
}
if have := fieldsOf(reflect.TypeOf(Node{})); !reflect.DeepEqual(have, nodeHandles) {
t.Errorf("Node.Equal check might be out of sync\nfields: %q\nhandled: %q\n",
have, nodeHandles)
}
newPublicKey := func(t *testing.T) wgkey.Key {
t.Helper()
k, err := wgkey.NewPrivate()
if err != nil {
t.Fatal(err)
}
return k.Public()
}
n1 := newPublicKey(t)
now := time.Now()
tests := []struct {
a, b *Node
want bool
}{
{
&Node{},
nil,
false,
},
{
nil,
&Node{},
false,
},
{
&Node{},
&Node{},
true,
},
{
&Node{},
&Node{},
true,
},
{
&Node{ID: 1},
&Node{},
false,
},
{
&Node{ID: 1},
&Node{ID: 1},
true,
},
{
&Node{StableID: "node-abcd"},
&Node{},
false,
},
{
&Node{StableID: "node-abcd"},
&Node{StableID: "node-abcd"},
true,
},
{
&Node{User: 0},
&Node{User: 1},
false,
},
{
&Node{User: 1},
&Node{User: 1},
true,
},
{
&Node{Key: NodeKey(n1)},
&Node{Key: NodeKey(newPublicKey(t))},
false,
},
{
&Node{Key: NodeKey(n1)},
&Node{Key: NodeKey(n1)},
true,
},
{
&Node{KeyExpiry: now},
&Node{KeyExpiry: now.Add(60 * time.Second)},
false,
},
{
&Node{KeyExpiry: now},
&Node{KeyExpiry: now},
true,
},
{
&Node{Machine: MachineKey(n1)},
&Node{Machine: MachineKey(newPublicKey(t))},
false,
},
{
&Node{Machine: MachineKey(n1)},
&Node{Machine: MachineKey(n1)},
true,
},
{
&Node{Addresses: []netaddr.IPPrefix{}},
&Node{Addresses: nil},
false,
},
{
&Node{Addresses: []netaddr.IPPrefix{}},
&Node{Addresses: []netaddr.IPPrefix{}},
true,
},
{
&Node{AllowedIPs: []netaddr.IPPrefix{}},
&Node{AllowedIPs: nil},
false,
},
{
&Node{Addresses: []netaddr.IPPrefix{}},
&Node{Addresses: []netaddr.IPPrefix{}},
true,
},
{
&Node{Endpoints: []string{}},
&Node{Endpoints: nil},
false,
},
{
&Node{Endpoints: []string{}},
&Node{Endpoints: []string{}},
true,
},
{
&Node{Hostinfo: Hostinfo{Hostname: "alice"}},
&Node{Hostinfo: Hostinfo{Hostname: "bob"}},
false,
},
{
&Node{Hostinfo: Hostinfo{}},
&Node{Hostinfo: Hostinfo{}},
true,
},
{
&Node{Created: now},
&Node{Created: now.Add(60 * time.Second)},
false,
},
{
&Node{Created: now},
&Node{Created: now},
true,
},
{
&Node{LastSeen: &now},
&Node{LastSeen: nil},
false,
},
{
&Node{LastSeen: &now},
&Node{LastSeen: &now},
true,
},
{
&Node{DERP: "foo"},
&Node{DERP: "bar"},
false,
},
}
for i, tt := range tests {
got := tt.a.Equal(tt.b)
if got != tt.want {
t.Errorf("%d. Equal = %v; want %v", i, got, tt.want)
}
}
}
func TestNetInfoFields(t *testing.T) {
handled := []string{
"MappingVariesByDestIP",
"HairPinning",
"WorkingIPv6",
"WorkingUDP",
"UPnP",
"PMP",
"PCP",
"PreferredDERP",
"LinkType",
"DERPLatency",
}
if have := fieldsOf(reflect.TypeOf(NetInfo{})); !reflect.DeepEqual(have, handled) {
t.Errorf("NetInfo.Clone/BasicallyEqually check might be out of sync\nfields: %q\nhandled: %q\n",
have, handled)
}
}
func TestMachineKeyMarshal(t *testing.T) {
var k1, k2 MachineKey
for i := range k1 {
k1[i] = byte(i)
}
testKey(t, "mkey:", k1, &k2)
}
func TestNodeKeyMarshal(t *testing.T) {
var k1, k2 NodeKey
for i := range k1 {
k1[i] = byte(i)
}
testKey(t, "nodekey:", k1, &k2)
}
func TestDiscoKeyMarshal(t *testing.T) {
var k1, k2 DiscoKey
for i := range k1 {
k1[i] = byte(i)
}
testKey(t, "discokey:", k1, &k2)
}
type keyIn interface {
String() string
MarshalText() ([]byte, error)
}
func testKey(t *testing.T, prefix string, in keyIn, out encoding.TextUnmarshaler) {
got, err := in.MarshalText()
if err != nil {
t.Fatal(err)
}
if err := out.UnmarshalText(got); err != nil {
t.Fatal(err)
}
if s := in.String(); string(got) != s {
t.Errorf("MarshalText = %q != String %q", got, s)
}
if !strings.HasPrefix(string(got), prefix) {
t.Errorf("%q didn't start with prefix %q", got, prefix)
}
if reflect.ValueOf(out).Elem().Interface() != in {
t.Errorf("mismatch after unmarshal")
}
}
func TestCloneUser(t *testing.T) {
tests := []struct {
name string
u *User
}{
{"nil_logins", &User{}},
{"zero_logins", &User{Logins: make([]LoginID, 0)}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
u2 := tt.u.Clone()
if !reflect.DeepEqual(tt.u, u2) {
t.Errorf("not equal")
}
})
}
}
func TestCloneNode(t *testing.T) {
tests := []struct {
name string
v *Node
}{
{"nil_fields", &Node{}},
{"zero_fields", &Node{
Addresses: make([]netaddr.IPPrefix, 0),
AllowedIPs: make([]netaddr.IPPrefix, 0),
Endpoints: make([]string, 0),
}},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
v2 := tt.v.Clone()
if !reflect.DeepEqual(tt.v, v2) {
t.Errorf("not equal")
}
})
}
}