Files
tailscale/control/controlclient/map_test.go
Will Norris 3ec5be3f51 all: remove AUTHORS file and references to it
This file was never truly necessary and has never actually been used in
the history of Tailscale's open source releases.

A Brief History of AUTHORS files
---

The AUTHORS file was a pattern developed at Google, originally for
Chromium, then adopted by Go and a bunch of other projects. The problem
was that Chromium originally had a copyright line only recognizing
Google as the copyright holder. Because Google (and most open source
projects) do not require copyright assignemnt for contributions, each
contributor maintains their copyright. Some large corporate contributors
then tried to add their own name to the copyright line in the LICENSE
file or in file headers. This quickly becomes unwieldy, and puts a
tremendous burden on anyone building on top of Chromium, since the
license requires that they keep all copyright lines intact.

The compromise was to create an AUTHORS file that would list all of the
copyright holders. The LICENSE file and source file headers would then
include that list by reference, listing the copyright holder as "The
Chromium Authors".

This also become cumbersome to simply keep the file up to date with a
high rate of new contributors. Plus it's not always obvious who the
copyright holder is. Sometimes it is the individual making the
contribution, but many times it may be their employer. There is no way
for the proejct maintainer to know.

Eventually, Google changed their policy to no longer recommend trying to
keep the AUTHORS file up to date proactively, and instead to only add to
it when requested: https://opensource.google/docs/releasing/authors.
They are also clear that:

> Adding contributors to the AUTHORS file is entirely within the
> project's discretion and has no implications for copyright ownership.

It was primarily added to appease a small number of large contributors
that insisted that they be recognized as copyright holders (which was
entirely their right to do). But it's not truly necessary, and not even
the most accurate way of identifying contributors and/or copyright
holders.

In practice, we've never added anyone to our AUTHORS file. It only lists
Tailscale, so it's not really serving any purpose. It also causes
confusion because Tailscalars put the "Tailscale Inc & AUTHORS" header
in other open source repos which don't actually have an AUTHORS file, so
it's ambiguous what that means.

Instead, we just acknowledge that the contributors to Tailscale (whoever
they are) are copyright holders for their individual contributions. We
also have the benefit of using the DCO (developercertificate.org) which
provides some additional certification of their right to make the
contribution.

The source file changes were purely mechanical with:

    git ls-files | xargs sed -i -e 's/\(Tailscale Inc &\) AUTHORS/\1 contributors/g'

Updates #cleanup

Change-Id: Ia101a4a3005adb9118051b3416f5a64a4a45987d
Signed-off-by: Will Norris <will@tailscale.com>
2026-01-23 15:49:45 -08:00

1486 lines
41 KiB
Go

// Copyright (c) Tailscale Inc & contributors
// SPDX-License-Identifier: BSD-3-Clause
package controlclient
import (
"bytes"
"context"
"encoding/json"
"fmt"
"maps"
"net/netip"
"reflect"
"strings"
"sync/atomic"
"testing"
"time"
"github.com/google/go-cmp/cmp"
"github.com/google/go-cmp/cmp/cmpopts"
"go4.org/mem"
"tailscale.com/control/controlknobs"
"tailscale.com/health"
"tailscale.com/ipn"
"tailscale.com/tailcfg"
"tailscale.com/tstest"
"tailscale.com/tstime"
"tailscale.com/types/dnstype"
"tailscale.com/types/key"
"tailscale.com/types/logger"
"tailscale.com/types/netmap"
"tailscale.com/types/persist"
"tailscale.com/types/ptr"
"tailscale.com/util/eventbus/eventbustest"
"tailscale.com/util/mak"
"tailscale.com/util/must"
"tailscale.com/util/zstdframe"
)
func eps(s ...string) []netip.AddrPort {
var eps []netip.AddrPort
for _, ep := range s {
eps = append(eps, netip.MustParseAddrPort(ep))
}
return eps
}
func TestUpdatePeersStateFromResponse(t *testing.T) {
var curTime time.Time
online := func(v bool) func(*tailcfg.Node) {
return func(n *tailcfg.Node) {
n.Online = &v
}
}
seenAt := func(t time.Time) func(*tailcfg.Node) {
return func(n *tailcfg.Node) {
n.LastSeen = &t
}
}
withDERP := func(regionID int) func(*tailcfg.Node) {
return func(n *tailcfg.Node) {
n.HomeDERP = regionID
}
}
withEP := func(ep string) func(*tailcfg.Node) {
return func(n *tailcfg.Node) {
n.Endpoints = []netip.AddrPort{netip.MustParseAddrPort(ep)}
}
}
n := func(id tailcfg.NodeID, name string, mod ...func(*tailcfg.Node)) *tailcfg.Node {
n := &tailcfg.Node{ID: id, Name: name}
for _, f := range mod {
f(n)
}
return n
}
peers := func(nv ...*tailcfg.Node) []*tailcfg.Node { return nv }
tests := []struct {
name string
mapRes *tailcfg.MapResponse
curTime time.Time
prev []*tailcfg.Node
want []*tailcfg.Node
wantStats updateStats
}{
{
name: "full_peers",
mapRes: &tailcfg.MapResponse{
Peers: peers(n(1, "foo"), n(2, "bar")),
},
want: peers(n(1, "foo"), n(2, "bar")),
wantStats: updateStats{
allNew: true,
added: 2,
},
},
{
name: "full_peers_ignores_deltas",
mapRes: &tailcfg.MapResponse{
Peers: peers(n(1, "foo"), n(2, "bar")),
PeersRemoved: []tailcfg.NodeID{2},
},
want: peers(n(1, "foo"), n(2, "bar")),
wantStats: updateStats{
allNew: true,
added: 2,
},
},
{
name: "add_and_update",
prev: peers(n(1, "foo"), n(2, "bar")),
mapRes: &tailcfg.MapResponse{
PeersChanged: peers(n(0, "zero"), n(2, "bar2"), n(3, "three")),
},
want: peers(n(0, "zero"), n(1, "foo"), n(2, "bar2"), n(3, "three")),
wantStats: updateStats{
added: 2, // added IDs 0 and 3
changed: 1, // changed ID 2
},
},
{
name: "remove",
prev: peers(n(1, "foo"), n(2, "bar")),
mapRes: &tailcfg.MapResponse{
PeersRemoved: []tailcfg.NodeID{1, 3, 4},
},
want: peers(n(2, "bar")),
wantStats: updateStats{
removed: 1, // ID 1
},
},
{
name: "add_and_remove",
prev: peers(n(1, "foo"), n(2, "bar")),
mapRes: &tailcfg.MapResponse{
PeersChanged: peers(n(1, "foo2")),
PeersRemoved: []tailcfg.NodeID{2},
},
want: peers(n(1, "foo2")),
wantStats: updateStats{
changed: 1,
removed: 1,
},
},
{
name: "unchanged",
prev: peers(n(1, "foo"), n(2, "bar")),
mapRes: &tailcfg.MapResponse{},
want: peers(n(1, "foo"), n(2, "bar")),
},
{
name: "online_change",
prev: peers(n(1, "foo"), n(2, "bar")),
mapRes: &tailcfg.MapResponse{
OnlineChange: map[tailcfg.NodeID]bool{
1: true,
404: true,
},
},
want: peers(
n(1, "foo", online(true)),
n(2, "bar"),
),
wantStats: updateStats{changed: 1},
},
{
name: "online_change_offline",
prev: peers(n(1, "foo"), n(2, "bar")),
mapRes: &tailcfg.MapResponse{
OnlineChange: map[tailcfg.NodeID]bool{
1: false,
2: true,
},
},
want: peers(
n(1, "foo", online(false)),
n(2, "bar", online(true)),
),
wantStats: updateStats{changed: 2},
},
{
name: "peer_seen_at",
prev: peers(n(1, "foo", seenAt(time.Unix(111, 0))), n(2, "bar")),
curTime: time.Unix(123, 0),
mapRes: &tailcfg.MapResponse{
PeerSeenChange: map[tailcfg.NodeID]bool{
1: false,
2: true,
},
},
want: peers(
n(1, "foo"),
n(2, "bar", seenAt(time.Unix(123, 0))),
),
wantStats: updateStats{changed: 2},
},
{
name: "ep_change_derp",
prev: peers(n(1, "foo", withDERP(3))),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
DERPRegion: 4,
}},
},
want: peers(n(1, "foo", withDERP(4))),
wantStats: updateStats{changed: 1},
},
{
name: "ep_change_udp",
prev: peers(n(1, "foo", withEP("1.2.3.4:111"))),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
Endpoints: eps("1.2.3.4:56"),
}},
},
want: peers(n(1, "foo", withEP("1.2.3.4:56"))),
wantStats: updateStats{changed: 1},
},
{
name: "ep_change_udp_2",
prev: peers(n(1, "foo", withDERP(3), withEP("1.2.3.4:111"))),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
Endpoints: eps("1.2.3.4:56"),
}},
},
want: peers(n(1, "foo", withDERP(3), withEP("1.2.3.4:56"))),
wantStats: updateStats{changed: 1},
},
{
name: "ep_change_both",
prev: peers(n(1, "foo", withDERP(3), withEP("1.2.3.4:111"))),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
DERPRegion: 2,
Endpoints: eps("1.2.3.4:56"),
}},
},
want: peers(n(1, "foo", withDERP(2), withEP("1.2.3.4:56"))),
wantStats: updateStats{changed: 1},
},
{
name: "change_key",
prev: peers(n(1, "foo")),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
Key: ptr.To(key.NodePublicFromRaw32(mem.B(append(make([]byte, 31), 'A')))),
}},
}, want: peers(&tailcfg.Node{
ID: 1,
Name: "foo",
Key: key.NodePublicFromRaw32(mem.B(append(make([]byte, 31), 'A'))),
}),
wantStats: updateStats{changed: 1},
},
{
name: "change_key_signature",
prev: peers(n(1, "foo")),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
KeySignature: []byte{3, 4},
}},
},
want: peers(&tailcfg.Node{
ID: 1,
Name: "foo",
KeySignature: []byte{3, 4},
}),
wantStats: updateStats{changed: 1},
},
{
name: "change_disco_key",
prev: peers(n(1, "foo")),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
DiscoKey: ptr.To(key.DiscoPublicFromRaw32(mem.B(append(make([]byte, 31), 'A')))),
}},
},
want: peers(&tailcfg.Node{
ID: 1,
Name: "foo",
DiscoKey: key.DiscoPublicFromRaw32(mem.B(append(make([]byte, 31), 'A'))),
}),
wantStats: updateStats{changed: 1},
},
{
name: "change_online",
prev: peers(n(1, "foo")),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
Online: ptr.To(true),
}},
},
want: peers(&tailcfg.Node{
ID: 1,
Name: "foo",
Online: ptr.To(true),
}),
wantStats: updateStats{changed: 1},
},
{
name: "change_last_seen",
prev: peers(n(1, "foo")),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
LastSeen: ptr.To(time.Unix(123, 0).UTC()),
}},
},
want: peers(&tailcfg.Node{
ID: 1,
Name: "foo",
LastSeen: ptr.To(time.Unix(123, 0).UTC()),
}),
wantStats: updateStats{changed: 1},
},
{
name: "change_key_expiry",
prev: peers(n(1, "foo")),
mapRes: &tailcfg.MapResponse{
PeersChangedPatch: []*tailcfg.PeerChange{{
NodeID: 1,
KeyExpiry: ptr.To(time.Unix(123, 0).UTC()),
}},
},
want: peers(&tailcfg.Node{
ID: 1,
Name: "foo",
KeyExpiry: time.Unix(123, 0).UTC(),
}),
wantStats: updateStats{changed: 1},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
if !tt.curTime.IsZero() {
curTime = tt.curTime
tstest.Replace(t, &clock, tstime.Clock(tstest.NewClock(tstest.ClockOpts{Start: curTime})))
}
ms := newTestMapSession(t, nil)
for _, n := range tt.prev {
mak.Set(&ms.peers, n.ID, n.View())
}
gotStats := ms.updatePeersStateFromResponse(tt.mapRes)
if gotStats != tt.wantStats {
t.Errorf("got stats = %+v; want %+v", gotStats, tt.wantStats)
}
var got []*tailcfg.Node
for _, vp := range ms.sortedPeers() {
got = append(got, vp.AsStruct())
}
if !reflect.DeepEqual(got, tt.want) {
t.Errorf("wrong results\n got: %s\nwant: %s", formatNodes(got), formatNodes(tt.want))
}
})
}
}
func formatNodes(nodes []*tailcfg.Node) string {
var sb strings.Builder
for i, n := range nodes {
if i > 0 {
sb.WriteString(", ")
}
fmt.Fprintf(&sb, "(%d, %q", n.ID, n.Name)
if n.Online != nil {
fmt.Fprintf(&sb, ", online=%v", *n.Online)
}
if n.LastSeen != nil {
fmt.Fprintf(&sb, ", lastSeen=%v", n.LastSeen.Unix())
}
if n.Key != (key.NodePublic{}) {
fmt.Fprintf(&sb, ", key=%v", n.Key.String())
}
if n.Expired {
fmt.Fprintf(&sb, ", expired=true")
}
sb.WriteString(")")
}
return sb.String()
}
func newTestMapSession(t testing.TB, nu NetmapUpdater) *mapSession {
ms := newMapSession(key.NewNode(), nu, new(controlknobs.Knobs))
t.Cleanup(ms.Close)
ms.logf = t.Logf
return ms
}
func (ms *mapSession) netmapForResponse(res *tailcfg.MapResponse) *netmap.NetworkMap {
ms.updateStateFromResponse(res)
return ms.netmap()
}
func TestNetmapForResponse(t *testing.T) {
t.Run("implicit_packetfilter", func(t *testing.T) {
somePacketFilter := []tailcfg.FilterRule{
{
SrcIPs: []string{"*"},
DstPorts: []tailcfg.NetPortRange{
{IP: "10.2.3.4", Ports: tailcfg.PortRange{First: 22, Last: 22}},
},
},
}
ms := newTestMapSession(t, nil)
nm1 := ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
PacketFilter: somePacketFilter,
})
if len(nm1.PacketFilter) == 0 {
t.Fatalf("zero length PacketFilter")
}
nm2 := ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
PacketFilter: nil, // testing that the server can omit this.
})
if len(nm1.PacketFilter) == 0 {
t.Fatalf("zero length PacketFilter in 2nd netmap")
}
if !reflect.DeepEqual(nm1.PacketFilter, nm2.PacketFilter) {
t.Error("packet filters differ")
}
})
t.Run("implicit_dnsconfig", func(t *testing.T) {
someDNSConfig := &tailcfg.DNSConfig{Domains: []string{"foo", "bar"}}
ms := newTestMapSession(t, nil)
nm1 := ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
DNSConfig: someDNSConfig,
})
if !reflect.DeepEqual(nm1.DNS, *someDNSConfig) {
t.Fatalf("1st DNS wrong")
}
nm2 := ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
DNSConfig: nil, // implicit
})
if !reflect.DeepEqual(nm2.DNS, *someDNSConfig) {
t.Fatalf("2nd DNS wrong")
}
})
t.Run("collect_services", func(t *testing.T) {
ms := newTestMapSession(t, nil)
var nm *netmap.NetworkMap
wantCollect := func(v bool) {
t.Helper()
if nm.CollectServices != v {
t.Errorf("netmap.CollectServices = %v; want %v", nm.CollectServices, v)
}
}
nm = ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
})
wantCollect(false)
nm = ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
CollectServices: "false",
})
wantCollect(false)
nm = ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
CollectServices: "true",
})
wantCollect(true)
nm = ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
CollectServices: "",
})
wantCollect(true)
})
t.Run("implicit_domain", func(t *testing.T) {
ms := newTestMapSession(t, nil)
var nm *netmap.NetworkMap
want := func(v string) {
t.Helper()
if nm.Domain != v {
t.Errorf("netmap.Domain = %q; want %q", nm.Domain, v)
}
}
nm = ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
Domain: "foo.com",
})
want("foo.com")
nm = ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
})
want("foo.com")
})
t.Run("implicit_node", func(t *testing.T) {
someNode := &tailcfg.Node{
Name: "foo",
}
wantNode := (&tailcfg.Node{
Name: "foo",
ComputedName: "foo",
ComputedNameWithHost: "foo",
}).View()
ms := newTestMapSession(t, nil)
mapRes := &tailcfg.MapResponse{
Node: someNode,
}
initDisplayNames(mapRes.Node.View(), mapRes)
ms.updateStateFromResponse(mapRes)
nm1 := ms.netmap()
if !nm1.SelfNode.Valid() {
t.Fatal("nil Node in 1st netmap")
}
if !reflect.DeepEqual(nm1.SelfNode, wantNode) {
j, _ := json.Marshal(nm1.SelfNode)
t.Errorf("Node mismatch in 1st netmap; got: %s", j)
}
ms.updateStateFromResponse(&tailcfg.MapResponse{})
nm2 := ms.netmap()
if !nm2.SelfNode.Valid() {
t.Fatal("nil Node in 1st netmap")
}
if !reflect.DeepEqual(nm2.SelfNode, wantNode) {
j, _ := json.Marshal(nm2.SelfNode)
t.Errorf("Node mismatch in 2nd netmap; got: %s", j)
}
})
t.Run("named_packetfilter", func(t *testing.T) {
pfA := []tailcfg.FilterRule{
{
SrcIPs: []string{"10.0.0.1"},
DstPorts: []tailcfg.NetPortRange{
{IP: "10.2.3.4", Ports: tailcfg.PortRange{First: 22, Last: 22}},
},
},
}
pfB := []tailcfg.FilterRule{
{
SrcIPs: []string{"10.0.0.2"},
DstPorts: []tailcfg.NetPortRange{
{IP: "10.2.3.4", Ports: tailcfg.PortRange{First: 22, Last: 22}},
},
},
}
ms := newTestMapSession(t, nil)
// Mix of old & new style (PacketFilter and PacketFilters).
nm1 := ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
PacketFilter: pfA,
PacketFilters: map[string][]tailcfg.FilterRule{
"pf-b": pfB,
},
})
if got, want := len(nm1.PacketFilter), 2; got != want {
t.Fatalf("PacketFilter length = %v; want %v", got, want)
}
if got, want := first(nm1.PacketFilter[0].Srcs).String(), "10.0.0.1/32"; got != want {
t.Fatalf("PacketFilter[0].Srcs = %v; want %v", got, want)
}
if got, want := first(nm1.PacketFilter[1].Srcs).String(), "10.0.0.2/32"; got != want {
t.Fatalf("PacketFilter[0].Srcs = %v; want %v", got, want)
}
// No-op change. Remember the old stuff.
nm2 := ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
PacketFilter: nil,
PacketFilters: nil,
})
if got, want := len(nm2.PacketFilter), 2; got != want {
t.Fatalf("PacketFilter length = %v; want %v", got, want)
}
if !reflect.DeepEqual(nm1.PacketFilter, nm2.PacketFilter) {
t.Error("packet filters differ")
}
// New style only, with clear.
nm3 := ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
PacketFilter: nil,
PacketFilters: map[string][]tailcfg.FilterRule{
"*": nil,
"pf-b": pfB,
},
})
if got, want := len(nm3.PacketFilter), 1; got != want {
t.Fatalf("PacketFilter length = %v; want %v", got, want)
}
if got, want := first(nm3.PacketFilter[0].Srcs).String(), "10.0.0.2/32"; got != want {
t.Fatalf("PacketFilter[0].Srcs = %v; want %v", got, want)
}
// New style only, adding pfA back, not as the legacy "base" layer:.
nm4 := ms.netmapForResponse(&tailcfg.MapResponse{
Node: new(tailcfg.Node),
PacketFilter: nil,
PacketFilters: map[string][]tailcfg.FilterRule{
"pf-a": pfA,
},
})
if got, want := len(nm4.PacketFilter), 2; got != want {
t.Fatalf("PacketFilter length = %v; want %v", got, want)
}
if got, want := first(nm4.PacketFilter[0].Srcs).String(), "10.0.0.1/32"; got != want {
t.Fatalf("PacketFilter[0].Srcs = %v; want %v", got, want)
}
if got, want := first(nm4.PacketFilter[1].Srcs).String(), "10.0.0.2/32"; got != want {
t.Fatalf("PacketFilter[0].Srcs = %v; want %v", got, want)
}
})
}
func first[T any](s []T) T {
if len(s) == 0 {
var zero T
return zero
}
return s[0]
}
func TestDeltaDERPMap(t *testing.T) {
regions1 := map[int]*tailcfg.DERPRegion{
1: {
RegionID: 1,
Nodes: []*tailcfg.DERPNode{{
Name: "derp1a",
RegionID: 1,
HostName: "derp1a" + tailcfg.DotInvalid,
IPv4: "169.254.169.254",
IPv6: "none",
}},
},
}
// As above, but with a changed IPv4 addr
regions2 := map[int]*tailcfg.DERPRegion{1: regions1[1].Clone()}
regions2[1].Nodes[0].IPv4 = "127.0.0.1"
type step struct {
got *tailcfg.DERPMap
want *tailcfg.DERPMap
}
tests := []struct {
name string
steps []step
}{
{
name: "nothing-to-nothing",
steps: []step{
{nil, nil},
{nil, nil},
},
},
{
name: "regions-sticky",
steps: []step{
{&tailcfg.DERPMap{Regions: regions1}, &tailcfg.DERPMap{Regions: regions1}},
{&tailcfg.DERPMap{}, &tailcfg.DERPMap{Regions: regions1}},
},
},
{
name: "regions-change",
steps: []step{
{&tailcfg.DERPMap{Regions: regions1}, &tailcfg.DERPMap{Regions: regions1}},
{&tailcfg.DERPMap{Regions: regions2}, &tailcfg.DERPMap{Regions: regions2}},
},
},
{
name: "home-params",
steps: []step{
// Send a DERP map
{&tailcfg.DERPMap{Regions: regions1}, &tailcfg.DERPMap{Regions: regions1}},
// Send home params, want to still have the same regions
{
&tailcfg.DERPMap{HomeParams: &tailcfg.DERPHomeParams{
RegionScore: map[int]float64{1: 0.5},
}},
&tailcfg.DERPMap{Regions: regions1, HomeParams: &tailcfg.DERPHomeParams{
RegionScore: map[int]float64{1: 0.5},
}},
},
},
},
{
name: "home-params-sub-fields",
steps: []step{
// Send a DERP map with home params
{
&tailcfg.DERPMap{Regions: regions1, HomeParams: &tailcfg.DERPHomeParams{
RegionScore: map[int]float64{1: 0.5},
}},
&tailcfg.DERPMap{Regions: regions1, HomeParams: &tailcfg.DERPHomeParams{
RegionScore: map[int]float64{1: 0.5},
}},
},
// Sending a struct with a 'HomeParams' field but nil RegionScore doesn't change home params...
{
&tailcfg.DERPMap{HomeParams: &tailcfg.DERPHomeParams{RegionScore: nil}},
&tailcfg.DERPMap{Regions: regions1, HomeParams: &tailcfg.DERPHomeParams{
RegionScore: map[int]float64{1: 0.5},
}},
},
// ... but sending one with a non-nil and empty RegionScore field zeroes that out.
{
&tailcfg.DERPMap{HomeParams: &tailcfg.DERPHomeParams{RegionScore: map[int]float64{}}},
&tailcfg.DERPMap{Regions: regions1, HomeParams: &tailcfg.DERPHomeParams{
RegionScore: map[int]float64{},
}},
},
},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
ms := newTestMapSession(t, nil)
for stepi, s := range tt.steps {
nm := ms.netmapForResponse(&tailcfg.MapResponse{DERPMap: s.got})
if !reflect.DeepEqual(nm.DERPMap, s.want) {
t.Errorf("unexpected result at step index %v; got: %s", stepi, logger.AsJSON(nm.DERPMap))
}
}
})
}
}
func TestPeerChangeDiff(t *testing.T) {
tests := []struct {
name string
a, b *tailcfg.Node
want *tailcfg.PeerChange // nil means want ok=false, unless wantEqual is set
wantEqual bool // means test wants (nil, true)
}{
{
name: "eq",
a: &tailcfg.Node{ID: 1},
b: &tailcfg.Node{ID: 1},
wantEqual: true,
},
{
name: "patch-derp",
a: &tailcfg.Node{ID: 1, HomeDERP: 1},
b: &tailcfg.Node{ID: 1, HomeDERP: 2},
want: &tailcfg.PeerChange{NodeID: 1, DERPRegion: 2},
},
{
name: "patch-endpoints",
a: &tailcfg.Node{ID: 1, Endpoints: eps("10.0.0.1:1")},
b: &tailcfg.Node{ID: 1, Endpoints: eps("10.0.0.2:2")},
want: &tailcfg.PeerChange{NodeID: 1, Endpoints: eps("10.0.0.2:2")},
},
{
name: "patch-cap",
a: &tailcfg.Node{ID: 1, Cap: 1},
b: &tailcfg.Node{ID: 1, Cap: 2},
want: &tailcfg.PeerChange{NodeID: 1, Cap: 2},
},
{
name: "patch-lastseen",
a: &tailcfg.Node{ID: 1, LastSeen: ptr.To(time.Unix(1, 0))},
b: &tailcfg.Node{ID: 1, LastSeen: ptr.To(time.Unix(2, 0))},
want: &tailcfg.PeerChange{NodeID: 1, LastSeen: ptr.To(time.Unix(2, 0))},
},
{
name: "patch-online-to-true",
a: &tailcfg.Node{ID: 1, Online: ptr.To(false)},
b: &tailcfg.Node{ID: 1, Online: ptr.To(true)},
want: &tailcfg.PeerChange{NodeID: 1, Online: ptr.To(true)},
},
{
name: "patch-online-to-false",
a: &tailcfg.Node{ID: 1, Online: ptr.To(true)},
b: &tailcfg.Node{ID: 1, Online: ptr.To(false)},
want: &tailcfg.PeerChange{NodeID: 1, Online: ptr.To(false)},
},
{
name: "mix-patchable-and-not",
a: &tailcfg.Node{ID: 1, Cap: 1},
b: &tailcfg.Node{ID: 1, Cap: 2, StableID: "foo"},
want: nil,
},
{
name: "miss-change-stableid",
a: &tailcfg.Node{ID: 1},
b: &tailcfg.Node{ID: 1, StableID: "diff"},
want: nil,
},
{
name: "miss-change-id",
a: &tailcfg.Node{ID: 1},
b: &tailcfg.Node{ID: 2},
want: nil,
},
{
name: "miss-change-name",
a: &tailcfg.Node{ID: 1, Name: "foo"},
b: &tailcfg.Node{ID: 1, Name: "bar"},
want: nil,
},
{
name: "miss-change-user",
a: &tailcfg.Node{ID: 1, User: 1},
b: &tailcfg.Node{ID: 1, User: 2},
want: nil,
},
{
name: "miss-change-masq-v4",
a: &tailcfg.Node{ID: 1, SelfNodeV4MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("100.64.0.1"))},
b: &tailcfg.Node{ID: 1, SelfNodeV4MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("100.64.0.2"))},
want: nil,
},
{
name: "miss-change-masq-v6",
a: &tailcfg.Node{ID: 1, SelfNodeV6MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("2001::3456"))},
b: &tailcfg.Node{ID: 1, SelfNodeV6MasqAddrForThisPeer: ptr.To(netip.MustParseAddr("2001::3006"))},
want: nil,
},
{
name: "patch-capmap-add-value-to-existing-key",
a: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil}},
b: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: []tailcfg.RawMessage{"true"}}},
want: &tailcfg.PeerChange{NodeID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: []tailcfg.RawMessage{"true"}}},
},
{
name: "patch-capmap-add-new-key",
a: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil}},
b: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil, tailcfg.CapabilityDebug: nil}},
want: &tailcfg.PeerChange{NodeID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil, tailcfg.CapabilityDebug: nil}},
}, {
name: "patch-capmap-remove-key",
a: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil}},
b: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{}},
want: &tailcfg.PeerChange{NodeID: 1, CapMap: tailcfg.NodeCapMap{}},
}, {
name: "patch-capmap-remove-as-nil",
a: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil}},
b: &tailcfg.Node{ID: 1},
want: &tailcfg.PeerChange{NodeID: 1, CapMap: tailcfg.NodeCapMap{}},
}, {
name: "patch-capmap-add-key-to-empty-map",
a: &tailcfg.Node{ID: 1},
b: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil}},
want: &tailcfg.PeerChange{NodeID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil}},
},
{
name: "patch-capmap-no-change",
a: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil}},
b: &tailcfg.Node{ID: 1, CapMap: tailcfg.NodeCapMap{tailcfg.CapabilityAdmin: nil}},
wantEqual: true,
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
pc, ok := peerChangeDiff(tt.a.View(), tt.b)
if tt.wantEqual {
if !ok || pc != nil {
t.Errorf("got (%p, %v); want (nil, true); pc=%v", pc, ok, logger.AsJSON(pc))
}
return
}
if (pc != nil) != ok {
t.Fatalf("inconsistent ok=%v, pc=%p", ok, pc)
}
if !reflect.DeepEqual(pc, tt.want) {
t.Errorf("mismatch\n got: %v\nwant: %v\n", logger.AsJSON(pc), logger.AsJSON(tt.want))
}
})
}
}
func TestPeerChangeDiffAllocs(t *testing.T) {
a := &tailcfg.Node{ID: 1}
b := &tailcfg.Node{ID: 1}
n := testing.AllocsPerRun(10000, func() {
diff, ok := peerChangeDiff(a.View(), b)
if !ok || diff != nil {
t.Fatalf("unexpected result: (%s, %v)", logger.AsJSON(diff), ok)
}
})
if n != 0 {
t.Errorf("allocs = %v; want 0", int(n))
}
}
type countingNetmapUpdater struct {
full atomic.Int64
}
func (nu *countingNetmapUpdater) UpdateFullNetmap(nm *netmap.NetworkMap) {
nu.full.Add(1)
}
// tests (*mapSession).patchifyPeersChanged; smaller tests are in TestPeerChangeDiff
func TestPatchifyPeersChanged(t *testing.T) {
hi := (&tailcfg.Hostinfo{}).View()
tests := []struct {
name string
mr0 *tailcfg.MapResponse // initial
mr1 *tailcfg.MapResponse // incremental
want *tailcfg.MapResponse // what the incremental one should've been mutated to
}{
{
name: "change_one_endpoint",
mr0: &tailcfg.MapResponse{
Node: &tailcfg.Node{Name: "foo.bar.ts.net."},
Peers: []*tailcfg.Node{
{ID: 1, Hostinfo: hi},
},
},
mr1: &tailcfg.MapResponse{
PeersChanged: []*tailcfg.Node{
{ID: 1, Endpoints: eps("10.0.0.1:1111"), Hostinfo: hi},
},
},
want: &tailcfg.MapResponse{
PeersChanged: nil,
PeersChangedPatch: []*tailcfg.PeerChange{
{NodeID: 1, Endpoints: eps("10.0.0.1:1111")},
},
},
},
{
name: "change_some",
mr0: &tailcfg.MapResponse{
Node: &tailcfg.Node{Name: "foo.bar.ts.net."},
Peers: []*tailcfg.Node{
{ID: 1, HomeDERP: 1, Hostinfo: hi},
{ID: 2, HomeDERP: 2, Hostinfo: hi},
{ID: 3, HomeDERP: 3, Hostinfo: hi},
},
},
mr1: &tailcfg.MapResponse{
PeersChanged: []*tailcfg.Node{
{ID: 1, HomeDERP: 11, Hostinfo: hi},
{ID: 2, StableID: "other-change", Hostinfo: hi},
{ID: 3, HomeDERP: 33, Hostinfo: hi},
{ID: 4, HomeDERP: 4, Hostinfo: hi},
},
},
want: &tailcfg.MapResponse{
PeersChanged: []*tailcfg.Node{
{ID: 2, StableID: "other-change", Hostinfo: hi},
{ID: 4, HomeDERP: 4, Hostinfo: hi},
},
PeersChangedPatch: []*tailcfg.PeerChange{
{NodeID: 1, DERPRegion: 11},
{NodeID: 3, DERPRegion: 33},
},
},
},
{
name: "change_exitnodednsresolvers",
mr0: &tailcfg.MapResponse{
Node: &tailcfg.Node{Name: "foo.bar.ts.net."},
Peers: []*tailcfg.Node{
{ID: 1, ExitNodeDNSResolvers: []*dnstype.Resolver{{Addr: "dns.exmaple.com"}}, Hostinfo: hi},
},
},
mr1: &tailcfg.MapResponse{
PeersChanged: []*tailcfg.Node{
{ID: 1, ExitNodeDNSResolvers: []*dnstype.Resolver{{Addr: "dns2.exmaple.com"}}, Hostinfo: hi},
},
},
want: &tailcfg.MapResponse{
PeersChanged: []*tailcfg.Node{
{ID: 1, ExitNodeDNSResolvers: []*dnstype.Resolver{{Addr: "dns2.exmaple.com"}}, Hostinfo: hi},
},
},
},
{
name: "same_exitnoderesolvers",
mr0: &tailcfg.MapResponse{
Node: &tailcfg.Node{Name: "foo.bar.ts.net."},
Peers: []*tailcfg.Node{
{ID: 1, ExitNodeDNSResolvers: []*dnstype.Resolver{{Addr: "dns.exmaple.com"}}, Hostinfo: hi},
},
},
mr1: &tailcfg.MapResponse{
PeersChanged: []*tailcfg.Node{
{ID: 1, ExitNodeDNSResolvers: []*dnstype.Resolver{{Addr: "dns.exmaple.com"}}, Hostinfo: hi},
},
},
want: &tailcfg.MapResponse{},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
nu := &countingNetmapUpdater{}
ms := newTestMapSession(t, nu)
ms.updateStateFromResponse(tt.mr0)
mr1 := new(tailcfg.MapResponse)
must.Do(json.Unmarshal(must.Get(json.Marshal(tt.mr1)), mr1))
ms.patchifyPeersChanged(mr1)
opts := []cmp.Option{
cmp.Comparer(func(a, b netip.AddrPort) bool { return a == b }),
}
if diff := cmp.Diff(tt.want, mr1, opts...); diff != "" {
t.Errorf("wrong result (-want +got):\n%s", diff)
}
})
}
}
func TestUpgradeNode(t *testing.T) {
a1 := netip.MustParsePrefix("0.0.0.1/32")
a2 := netip.MustParsePrefix("0.0.0.2/32")
a3 := netip.MustParsePrefix("0.0.0.3/32")
a4 := netip.MustParsePrefix("0.0.0.4/32")
tests := []struct {
name string
in *tailcfg.Node
want *tailcfg.Node
also func(t *testing.T, got *tailcfg.Node) // optional
}{
{
name: "nil",
in: nil,
want: nil,
},
{
name: "empty",
in: new(tailcfg.Node),
want: new(tailcfg.Node),
},
{
name: "derp-both",
in: &tailcfg.Node{HomeDERP: 1, LegacyDERPString: tailcfg.DerpMagicIP + ":2"},
want: &tailcfg.Node{HomeDERP: 1},
},
{
name: "derp-str-only",
in: &tailcfg.Node{LegacyDERPString: tailcfg.DerpMagicIP + ":2"},
want: &tailcfg.Node{HomeDERP: 2},
},
{
name: "derp-int-only",
in: &tailcfg.Node{HomeDERP: 2},
want: &tailcfg.Node{HomeDERP: 2},
},
{
name: "implicit-allowed-ips-all-set",
in: &tailcfg.Node{Addresses: []netip.Prefix{a1, a2}, AllowedIPs: []netip.Prefix{a3, a4}},
want: &tailcfg.Node{Addresses: []netip.Prefix{a1, a2}, AllowedIPs: []netip.Prefix{a3, a4}},
},
{
name: "implicit-allowed-ips-only-address-set",
in: &tailcfg.Node{Addresses: []netip.Prefix{a1, a2}},
want: &tailcfg.Node{Addresses: []netip.Prefix{a1, a2}, AllowedIPs: []netip.Prefix{a1, a2}},
also: func(t *testing.T, got *tailcfg.Node) {
if t.Failed() {
return
}
if &got.Addresses[0] == &got.AllowedIPs[0] {
t.Error("Addresses and AllowIPs alias the same memory")
}
},
},
{
name: "implicit-allowed-ips-set-empty-slice",
in: &tailcfg.Node{Addresses: []netip.Prefix{a1, a2}, AllowedIPs: []netip.Prefix{}},
want: &tailcfg.Node{Addresses: []netip.Prefix{a1, a2}, AllowedIPs: []netip.Prefix{}},
},
}
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var got *tailcfg.Node
if tt.in != nil {
got = ptr.To(*tt.in) // shallow clone
}
upgradeNode(got)
if diff := cmp.Diff(tt.want, got); diff != "" {
t.Errorf("wrong result (-want +got):\n%s", diff)
}
if tt.also != nil {
tt.also(t, got)
}
})
}
}
func BenchmarkMapSessionDelta(b *testing.B) {
for _, size := range []int{10, 100, 1_000, 10_000} {
b.Run(fmt.Sprintf("size_%d", size), func(b *testing.B) {
ctx := context.Background()
nu := &countingNetmapUpdater{}
ms := newTestMapSession(b, nu)
res := &tailcfg.MapResponse{
Node: &tailcfg.Node{
ID: 1,
Name: "foo.bar.ts.net.",
},
}
for i := range size {
res.Peers = append(res.Peers, &tailcfg.Node{
ID: tailcfg.NodeID(i + 2),
Name: fmt.Sprintf("peer%d.bar.ts.net.", i),
HomeDERP: 10,
Addresses: []netip.Prefix{netip.MustParsePrefix("100.100.2.3/32"), netip.MustParsePrefix("fd7a:115c:a1e0::123/128")},
AllowedIPs: []netip.Prefix{netip.MustParsePrefix("100.100.2.3/32"), netip.MustParsePrefix("fd7a:115c:a1e0::123/128")},
Endpoints: eps("192.168.1.2:345", "192.168.1.3:678"),
Hostinfo: (&tailcfg.Hostinfo{
OS: "fooOS",
Hostname: "MyHostname",
Services: []tailcfg.Service{
{Proto: "peerapi4", Port: 1234},
{Proto: "peerapi6", Port: 1234},
{Proto: "peerapi-dns-proxy", Port: 1},
},
}).View(),
LastSeen: ptr.To(time.Unix(int64(i), 0)),
})
}
ms.HandleNonKeepAliveMapResponse(ctx, res)
b.ResetTimer()
b.ReportAllocs()
// Now for the core of the benchmark loop, just toggle
// a single node's online status.
for i := range b.N {
if err := ms.HandleNonKeepAliveMapResponse(ctx, &tailcfg.MapResponse{
OnlineChange: map[tailcfg.NodeID]bool{
2: i%2 == 0,
},
}); err != nil {
b.Fatal(err)
}
}
})
}
}
// TestNetmapDisplayMessage checks that the various diff operations
// (add/update/delete/clear) for [tailcfg.DisplayMessage] in a
// [tailcfg.MapResponse] work as expected.
func TestNetmapDisplayMessage(t *testing.T) {
type test struct {
name string
initialState *tailcfg.MapResponse
mapResponse tailcfg.MapResponse
wantMessages map[tailcfg.DisplayMessageID]tailcfg.DisplayMessage
}
tests := []test{
{
name: "basic-set",
mapResponse: tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"test-message": {
Title: "Testing",
Text: "This is a test message",
Severity: tailcfg.SeverityHigh,
ImpactsConnectivity: true,
PrimaryAction: &tailcfg.DisplayMessageAction{
URL: "https://www.example.com",
Label: "Learn more",
},
},
},
},
wantMessages: map[tailcfg.DisplayMessageID]tailcfg.DisplayMessage{
"test-message": {
Title: "Testing",
Text: "This is a test message",
Severity: tailcfg.SeverityHigh,
ImpactsConnectivity: true,
PrimaryAction: &tailcfg.DisplayMessageAction{
URL: "https://www.example.com",
Label: "Learn more",
},
},
},
},
{
name: "delete-one",
initialState: &tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"message-a": {
Title: "Message A",
},
"message-b": {
Title: "Message B",
},
},
},
mapResponse: tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"message-a": nil,
},
},
wantMessages: map[tailcfg.DisplayMessageID]tailcfg.DisplayMessage{
"message-b": {
Title: "Message B",
},
},
},
{
name: "update-one",
initialState: &tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"message-a": {
Title: "Message A",
},
"message-b": {
Title: "Message B",
},
},
},
mapResponse: tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"message-a": {
Title: "Message A updated",
},
},
},
wantMessages: map[tailcfg.DisplayMessageID]tailcfg.DisplayMessage{
"message-a": {
Title: "Message A updated",
},
"message-b": {
Title: "Message B",
},
},
},
{
name: "add-one",
initialState: &tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"message-a": {
Title: "Message A",
},
},
},
mapResponse: tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"message-b": {
Title: "Message B",
},
},
},
wantMessages: map[tailcfg.DisplayMessageID]tailcfg.DisplayMessage{
"message-a": {
Title: "Message A",
},
"message-b": {
Title: "Message B",
},
},
},
{
name: "delete-all",
initialState: &tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"message-a": {
Title: "Message A",
},
"message-b": {
Title: "Message B",
},
},
},
mapResponse: tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"*": nil,
},
},
wantMessages: map[tailcfg.DisplayMessageID]tailcfg.DisplayMessage{},
},
{
name: "delete-all-and-add",
initialState: &tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"message-a": {
Title: "Message A",
},
"message-b": {
Title: "Message B",
},
},
},
mapResponse: tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"*": nil,
"message-c": {
Title: "Message C",
},
},
},
wantMessages: map[tailcfg.DisplayMessageID]tailcfg.DisplayMessage{
"message-c": {
Title: "Message C",
},
},
},
}
for _, test := range tests {
t.Run(test.name, func(t *testing.T) {
ms := newTestMapSession(t, nil)
if test.initialState != nil {
ms.netmapForResponse(test.initialState)
}
nm := ms.netmapForResponse(&test.mapResponse)
if diff := cmp.Diff(test.wantMessages, nm.DisplayMessages, cmpopts.EquateEmpty()); diff != "" {
t.Errorf("unexpected warnings (-want +got):\n%s", diff)
}
})
}
}
// TestNetmapHealthIntegration checks that we get the expected health warnings
// from processing a [tailcfg.MapResponse] containing health messages and passing the
// [netmap.NetworkMap] to a [health.Tracker].
func TestNetmapHealthIntegration(t *testing.T) {
ms := newTestMapSession(t, nil)
ht := health.NewTracker(eventbustest.NewBus(t))
ht.SetIPNState("NeedsLogin", true)
ht.GotStreamedMapResponse()
nm := ms.netmapForResponse(&tailcfg.MapResponse{
Health: []string{
"Test message",
"Another message",
},
})
ht.SetControlHealth(nm.DisplayMessages)
want := map[health.WarnableCode]health.UnhealthyState{
"control-health.health-c0719e9a8d5d838d861dc6f675c899d2b309a3a65bb9fe6b11e5afcbf9a2c0b1": {
WarnableCode: "control-health.health-c0719e9a8d5d838d861dc6f675c899d2b309a3a65bb9fe6b11e5afcbf9a2c0b1",
Title: "Coordination server reports an issue",
Severity: health.SeverityMedium,
Text: "The coordination server is reporting a health issue: Test message",
},
"control-health.health-1dc7017a73a3c55c0d6a8423e3813c7ab6562d9d3064c2ec6ac7822f61b1db9c": {
WarnableCode: "control-health.health-1dc7017a73a3c55c0d6a8423e3813c7ab6562d9d3064c2ec6ac7822f61b1db9c",
Title: "Coordination server reports an issue",
Severity: health.SeverityMedium,
Text: "The coordination server is reporting a health issue: Another message",
},
}
got := maps.Clone(ht.CurrentState().Warnings)
for k := range got {
if !strings.HasPrefix(string(k), "control-health") {
delete(got, k)
}
}
if d := cmp.Diff(want, got, cmpopts.IgnoreFields(health.UnhealthyState{}, "ETag")); d != "" {
t.Fatalf("CurrentStatus().Warnings[\"control-health*\"] different than expected (-want +got)\n%s", d)
}
}
// TestNetmapDisplayMessageIntegration checks that we get the expected health
// warnings from processing a [tailcfg.MapResponse] that contains DisplayMessages and
// passing the [netmap.NetworkMap] to a [health.Tracker].
func TestNetmapDisplayMessageIntegration(t *testing.T) {
ms := newTestMapSession(t, nil)
ht := health.NewTracker(eventbustest.NewBus(t))
ht.SetIPNState("NeedsLogin", true)
ht.GotStreamedMapResponse()
baseWarnings := ht.CurrentState().Warnings
nm := ms.netmapForResponse(&tailcfg.MapResponse{
DisplayMessages: map[tailcfg.DisplayMessageID]*tailcfg.DisplayMessage{
"test-message": {
Title: "Testing",
Text: "This is a test message",
Severity: tailcfg.SeverityHigh,
ImpactsConnectivity: true,
PrimaryAction: &tailcfg.DisplayMessageAction{
URL: "https://www.example.com",
Label: "Learn more",
},
},
},
})
ht.SetControlHealth(nm.DisplayMessages)
state := ht.CurrentState()
// Ignore warnings that aren't from the netmap
for k := range baseWarnings {
delete(state.Warnings, k)
}
want := map[health.WarnableCode]health.UnhealthyState{
"control-health.test-message": {
WarnableCode: "control-health.test-message",
Title: "Testing",
Text: "This is a test message",
Severity: health.SeverityHigh,
ImpactsConnectivity: true,
PrimaryAction: &health.UnhealthyStateAction{
URL: "https://www.example.com",
Label: "Learn more",
},
},
}
if diff := cmp.Diff(want, state.Warnings, cmpopts.IgnoreFields(health.UnhealthyState{}, "ETag")); diff != "" {
t.Errorf("unexpected message contents (-want +got):\n%s", diff)
}
}
func TestNetmapForMapResponseForDebug(t *testing.T) {
mr := &tailcfg.MapResponse{
Node: &tailcfg.Node{
ID: 1,
Name: "foo.bar.ts.net.",
},
Peers: []*tailcfg.Node{
{ID: 2, Name: "peer1.bar.ts.net.", HomeDERP: 1},
{ID: 3, Name: "peer2.bar.ts.net.", HomeDERP: 1},
},
}
ms := newTestMapSession(t, nil)
nm1 := ms.netmapForResponse(mr)
prefs := &ipn.Prefs{Persist: &persist.Persist{PrivateNodeKey: ms.privateNodeKey}}
nm2, err := NetmapFromMapResponseForDebug(t.Context(), prefs.View().Persist(), mr)
if err != nil {
t.Fatal(err)
}
if !reflect.DeepEqual(nm1, nm2) {
t.Errorf("mismatch\nnm1: %s\nnm2: %s\n", logger.AsJSON(nm1), logger.AsJSON(nm2))
}
}
func TestLearnZstdOfKeepAlive(t *testing.T) {
keepAliveMsgZstd := (func() []byte {
msg := must.Get(json.Marshal(tailcfg.MapResponse{
KeepAlive: true,
}))
return zstdframe.AppendEncode(nil, msg, zstdframe.FastestCompression)
})()
sess := newTestMapSession(t, nil)
// The first time we see a zstd keep-alive message, we learn how
// the server encodes that.
var mr tailcfg.MapResponse
must.Do(sess.decodeMsg(keepAliveMsgZstd, &mr))
if !mr.KeepAlive {
t.Fatal("mr.KeepAlive false; want true")
}
if !bytes.Equal(sess.keepAliveZ, keepAliveMsgZstd) {
t.Fatalf("sess.keepAlive = %q; want %q", sess.keepAliveZ, keepAliveMsgZstd)
}
if got, want := sess.ztdDecodesForTest, 1; got != want {
t.Fatalf("got %d zstd decodes; want %d", got, want)
}
// The second time on the session where we see that message, we
// decode it without needing to decompress.
var mr2 tailcfg.MapResponse
must.Do(sess.decodeMsg(keepAliveMsgZstd, &mr2))
if !mr2.KeepAlive {
t.Fatal("mr2.KeepAlive false; want true")
}
if got, want := sess.ztdDecodesForTest, 1; got != want {
t.Fatalf("got %d zstd decodes; want %d", got, want)
}
}