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tailscale/tailcfg/tailcfg_test.go
Percy Wegmann 50fb8b9123 tailfs: replace webdavfs with reverse proxies 
Instead of modeling remote WebDAV servers as actual
webdav.FS instances, we now just proxy traffic to them.
This not only simplifies the code, but it also allows
WebDAV locking to work correctly by making sure locks are
handled by the servers that need to (i.e. the ones actually
serving the files).

Updates tailscale/corp#16827

Signed-off-by: Percy Wegmann <percy@tailscale.com>
2024-02-26 09:30:22 -06:00

857 lines
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// Copyright (c) Tailscale Inc & AUTHORS
// SPDX-License-Identifier: BSD-3-Clause
package tailcfg_test
import (
"encoding/json"
"net/netip"
"os"
"reflect"
"regexp"
"strconv"
"strings"
"testing"
"time"
. "tailscale.com/tailcfg"
"tailscale.com/tstest/deptest"
"tailscale.com/types/key"
"tailscale.com/types/opt"
"tailscale.com/types/ptr"
"tailscale.com/util/must"
)
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",
"Container",
"Env",
"Distro",
"DistroVersion",
"DistroCodeName",
"App",
"Desktop",
"Package",
"DeviceModel",
"PushDeviceToken",
"Hostname",
"ShieldsUp",
"ShareeNode",
"NoLogsNoSupport",
"WireIngress",
"AllowsUpdate",
"Machine",
"GoArch",
"GoArchVar",
"GoVersion",
"RoutableIPs",
"RequestTags",
"WoLMACs",
"Services",
"NetInfo",
"SSH_HostKeys",
"Cloud",
"Userspace",
"UserspaceRouter",
"AppConnector",
"Location",
}
if have := fieldsOf(reflect.TypeFor[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 []netip.Prefix) {
for _, s := range strs {
n, err := netip.ParsePrefix(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{{Proto: TCP, Port: 1234, Description: "foo"}}},
&Hostinfo{Services: []Service{{Proto: UDP, Port: 2345, Description: "bar"}}},
false,
},
{
&Hostinfo{Services: []Service{{Proto: TCP, Port: 1234, Description: "foo"}}},
&Hostinfo{Services: []Service{{Proto: TCP, Port: 1234, Description: "foo"}}},
true,
},
{
&Hostinfo{ShareeNode: true},
&Hostinfo{},
false,
},
{
&Hostinfo{SSH_HostKeys: []string{"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIO.... root@bar"}},
&Hostinfo{},
false,
},
{
&Hostinfo{App: "golink"},
&Hostinfo{App: "abc"},
false,
},
{
&Hostinfo{App: "golink"},
&Hostinfo{App: "golink"},
true,
},
{
&Hostinfo{AppConnector: opt.Bool("true")},
&Hostinfo{AppConnector: opt.Bool("true")},
true,
},
{
&Hostinfo{AppConnector: opt.Bool("true")},
&Hostinfo{AppConnector: opt.Bool("false")},
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 TestHostinfoHowEqual(t *testing.T) {
tests := []struct {
a, b *Hostinfo
want []string
}{
{
a: nil,
b: nil,
want: nil,
},
{
a: new(Hostinfo),
b: nil,
want: []string{"nil"},
},
{
a: nil,
b: new(Hostinfo),
want: []string{"nil"},
},
{
a: new(Hostinfo),
b: new(Hostinfo),
want: nil,
},
{
a: &Hostinfo{
IPNVersion: "1",
ShieldsUp: false,
RoutableIPs: []netip.Prefix{netip.MustParsePrefix("1.2.3.0/24")},
},
b: &Hostinfo{
IPNVersion: "2",
ShieldsUp: true,
RoutableIPs: []netip.Prefix{netip.MustParsePrefix("1.2.3.0/25")},
},
want: []string{"IPNVersion", "ShieldsUp", "RoutableIPs"},
},
{
a: &Hostinfo{
IPNVersion: "1",
},
b: &Hostinfo{
IPNVersion: "2",
NetInfo: new(NetInfo),
},
want: []string{"IPNVersion", "NetInfo.nil"},
},
{
a: &Hostinfo{
IPNVersion: "1",
NetInfo: &NetInfo{
WorkingIPv6: "true",
HavePortMap: true,
LinkType: "foo",
PreferredDERP: 123,
DERPLatency: map[string]float64{
"foo": 1.0,
},
},
},
b: &Hostinfo{
IPNVersion: "2",
NetInfo: &NetInfo{},
},
want: []string{"IPNVersion", "NetInfo.WorkingIPv6", "NetInfo.HavePortMap", "NetInfo.PreferredDERP", "NetInfo.LinkType", "NetInfo.DERPLatency"},
},
}
for i, tt := range tests {
got := tt.a.HowUnequal(tt.b)
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("%d. got %q; want %q", i, got, tt.want)
}
}
}
func TestHostinfoTailscaleSSHEnabled(t *testing.T) {
tests := []struct {
hi *Hostinfo
want bool
}{
{
nil,
false,
},
{
&Hostinfo{},
false,
},
{
&Hostinfo{SSH_HostKeys: []string{"ssh-ed25519 AAAAC3NzaC1lZDI1NTE5AAAAIO.... root@bar"}},
true,
},
}
for i, tt := range tests {
got := tt.hi.TailscaleSSHEnabled()
if got != tt.want {
t.Errorf("%d. got %v; want %v", i, got, tt.want)
}
}
}
func TestNodeEqual(t *testing.T) {
nodeHandles := []string{
"ID", "StableID", "Name", "User", "Sharer",
"Key", "KeyExpiry", "KeySignature", "Machine", "DiscoKey",
"Addresses", "AllowedIPs", "Endpoints", "DERP", "Hostinfo",
"Created", "Cap", "Tags", "PrimaryRoutes",
"LastSeen", "Online", "MachineAuthorized",
"Capabilities", "CapMap",
"UnsignedPeerAPIOnly",
"ComputedName", "computedHostIfDifferent", "ComputedNameWithHost",
"DataPlaneAuditLogID", "Expired", "SelfNodeV4MasqAddrForThisPeer",
"SelfNodeV6MasqAddrForThisPeer", "IsWireGuardOnly", "ExitNodeDNSResolvers",
}
if have := fieldsOf(reflect.TypeFor[Node]()); !reflect.DeepEqual(have, nodeHandles) {
t.Errorf("Node.Equal check might be out of sync\nfields: %q\nhandled: %q\n",
have, nodeHandles)
}
n1 := key.NewNode().Public()
m1 := key.NewMachine().Public()
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: n1},
&Node{Key: key.NewNode().Public()},
false,
},
{
&Node{Key: n1},
&Node{Key: n1},
true,
},
{
&Node{KeyExpiry: now},
&Node{KeyExpiry: now.Add(60 * time.Second)},
false,
},
{
&Node{KeyExpiry: now},
&Node{KeyExpiry: now},
true,
},
{
&Node{Machine: m1},
&Node{Machine: key.NewMachine().Public()},
false,
},
{
&Node{Machine: m1},
&Node{Machine: m1},
true,
},
{
&Node{Addresses: []netip.Prefix{}},
&Node{Addresses: nil},
false,
},
{
&Node{Addresses: []netip.Prefix{}},
&Node{Addresses: []netip.Prefix{}},
true,
},
{
&Node{AllowedIPs: []netip.Prefix{}},
&Node{AllowedIPs: nil},
false,
},
{
&Node{Addresses: []netip.Prefix{}},
&Node{Addresses: []netip.Prefix{}},
true,
},
{
&Node{Endpoints: []netip.AddrPort{}},
&Node{Endpoints: nil},
false,
},
{
&Node{Endpoints: []netip.AddrPort{}},
&Node{Endpoints: []netip.AddrPort{}},
true,
},
{
&Node{Hostinfo: (&Hostinfo{Hostname: "alice"}).View()},
&Node{Hostinfo: (&Hostinfo{Hostname: "bob"}).View()},
false,
},
{
&Node{Hostinfo: (&Hostinfo{}).View()},
&Node{Hostinfo: (&Hostinfo{}).View()},
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,
},
{
&Node{Tags: []string{"tag:foo"}},
&Node{Tags: []string{"tag:foo"}},
true,
},
{
&Node{Tags: []string{"tag:foo", "tag:bar"}},
&Node{Tags: []string{"tag:bar"}},
false,
},
{
&Node{Tags: []string{"tag:foo"}},
&Node{Tags: []string{"tag:bar"}},
false,
},
{
&Node{Tags: []string{"tag:foo"}},
&Node{},
false,
},
{
&Node{Expired: true},
&Node{},
false,
},
{
&Node{},
&Node{SelfNodeV4MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("100.64.0.1"))},
false,
},
{
&Node{SelfNodeV4MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("100.64.0.1"))},
&Node{SelfNodeV4MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("100.64.0.1"))},
true,
},
{
&Node{},
&Node{SelfNodeV6MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("2001::3456"))},
false,
},
{
&Node{SelfNodeV6MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("2001::3456"))},
&Node{SelfNodeV6MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("2001::3456"))},
true,
},
{
&Node{
CapMap: NodeCapMap{
"foo": []RawMessage{`"foo"`},
},
},
&Node{
CapMap: NodeCapMap{
"foo": []RawMessage{`"foo"`},
},
},
true,
},
{
&Node{
CapMap: NodeCapMap{
"bar": []RawMessage{`"foo"`},
},
},
&Node{
CapMap: NodeCapMap{
"foo": []RawMessage{`"bar"`},
},
},
false,
},
{
&Node{
CapMap: NodeCapMap{
"foo": nil,
},
},
&Node{
CapMap: NodeCapMap{
"foo": []RawMessage{`"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",
"OSHasIPv6",
"WorkingUDP",
"WorkingICMPv4",
"HavePortMap",
"UPnP",
"PMP",
"PCP",
"PreferredDERP",
"LinkType",
"DERPLatency",
"FirewallMode",
}
if have := fieldsOf(reflect.TypeFor[NetInfo]()); !reflect.DeepEqual(have, handled) {
t.Errorf("NetInfo.Clone/BasicallyEqually check might be out of sync\nfields: %q\nhandled: %q\n",
have, handled)
}
}
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([]netip.Prefix, 0),
AllowedIPs: make([]netip.Prefix, 0),
Endpoints: make([]netip.AddrPort, 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")
}
})
}
}
func TestUserProfileJSONMarshalForMac(t *testing.T) {
// Old macOS clients had a bug where they required
// UserProfile.Roles to be non-null. Lock that in
// 1.0.x/1.2.x clients are gone in the wild.
// See mac commit 0242c08a2ca496958027db1208f44251bff8488b (Sep 30).
// It was fixed in at least 1.4.x, and perhaps 1.2.x.
j, err := json.Marshal(UserProfile{})
if err != nil {
t.Fatal(err)
}
const wantSub = `"Roles":[]`
if !strings.Contains(string(j), wantSub) {
t.Fatalf("didn't contain %#q; got: %s", wantSub, j)
}
// And back:
var up UserProfile
if err := json.Unmarshal(j, &up); err != nil {
t.Fatalf("Unmarshal: %v", err)
}
}
func TestEndpointTypeMarshal(t *testing.T) {
eps := []EndpointType{
EndpointUnknownType,
EndpointLocal,
EndpointSTUN,
EndpointPortmapped,
EndpointSTUN4LocalPort,
}
got, err := json.Marshal(eps)
if err != nil {
t.Fatal(err)
}
const want = `[0,1,2,3,4]`
if string(got) != want {
t.Errorf("got %s; want %s", got, want)
}
}
func TestRegisterRequestNilClone(t *testing.T) {
var nilReq *RegisterRequest
got := nilReq.Clone()
if got != nil {
t.Errorf("got = %v; want nil", got)
}
}
// Tests that CurrentCapabilityVersion is bumped when the comment block above it gets bumped.
// We've screwed this up several times.
func TestCurrentCapabilityVersion(t *testing.T) {
f := must.Get(os.ReadFile("tailcfg.go"))
matches := regexp.MustCompile(`(?m)^//[\s-]+(\d+): \d\d\d\d-\d\d-\d\d: `).FindAllStringSubmatch(string(f), -1)
max := 0
for _, m := range matches {
n := must.Get(strconv.Atoi(m[1]))
if n > max {
max = n
}
}
if CapabilityVersion(max) != CurrentCapabilityVersion {
t.Errorf("CurrentCapabilityVersion = %d; want %d", CurrentCapabilityVersion, max)
}
}
func TestUnmarshalHealth(t *testing.T) {
tests := []struct {
in string // MapResponse JSON
want []string // MapResponse.Health wanted value post-unmarshal
}{
{in: `{}`},
{in: `{"Health":null}`},
{in: `{"Health":[]}`, want: []string{}},
{in: `{"Health":["bad"]}`, want: []string{"bad"}},
}
for _, tt := range tests {
var mr MapResponse
if err := json.Unmarshal([]byte(tt.in), &mr); err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(mr.Health, tt.want) {
t.Errorf("for %#q: got %v; want %v", tt.in, mr.Health, tt.want)
}
}
}
func TestRawMessage(t *testing.T) {
// Create a few types of json.RawMessages and then marshal them back and
// forth to make sure they round-trip.
type rule struct {
Ports []int `json:",omitempty"`
}
tests := []struct {
name string
val map[string][]rule
wire map[string][]RawMessage
}{
{
name: "nil",
val: nil,
wire: nil,
},
{
name: "empty",
val: map[string][]rule{},
wire: map[string][]RawMessage{},
},
{
name: "one",
val: map[string][]rule{
"foo": {{Ports: []int{1, 2, 3}}},
},
wire: map[string][]RawMessage{
"foo": {
`{"Ports":[1,2,3]}`,
},
},
},
{
name: "many",
val: map[string][]rule{
"foo": {{Ports: []int{1, 2, 3}}},
"bar": {{Ports: []int{4, 5, 6}}, {Ports: []int{7, 8, 9}}},
"baz": nil,
"abc": {},
"def": {{}},
},
wire: map[string][]RawMessage{
"foo": {
`{"Ports":[1,2,3]}`,
},
"bar": {
`{"Ports":[4,5,6]}`,
`{"Ports":[7,8,9]}`,
},
"baz": nil,
"abc": {},
"def": {"{}"},
},
},
}
for _, tc := range tests {
t.Run(tc.name, func(t *testing.T) {
j := must.Get(json.Marshal(tc.val))
var gotWire map[string][]RawMessage
if err := json.Unmarshal(j, &gotWire); err != nil {
t.Fatalf("unmarshal: %v", err)
}
if !reflect.DeepEqual(gotWire, tc.wire) {
t.Errorf("got %#v; want %#v", gotWire, tc.wire)
}
j = must.Get(json.Marshal(tc.wire))
var gotVal map[string][]rule
if err := json.Unmarshal(j, &gotVal); err != nil {
t.Fatalf("unmarshal: %v", err)
}
if !reflect.DeepEqual(gotVal, tc.val) {
t.Errorf("got %#v; want %#v", gotVal, tc.val)
}
})
}
}
func TestDeps(t *testing.T) {
deptest.DepChecker{
BadDeps: map[string]string{
// Make sure we don't again accidentally bring in a dependency on
// TailFS or its transitive dependencies
"tailscale.com/tailfs/tailfsimpl": "https://github.com/tailscale/tailscale/pull/10631",
"github.com/studio-b12/gowebdav": "https://github.com/tailscale/tailscale/pull/10631",
},
}.Check(t)
}
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