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health, all: remove health.Global, finish plumbing health.Tracker

Browse Source 
Updates #11874
Updates #4136

Change-Id: I414470f71d90be9889d44c3afd53956d9f26cd61
Signed-off-by: Brad Fitzpatrick <bradfitz@tailscale.com>
pull/11889/head
Brad Fitzpatrick 7 months ago committed by Brad Fitzpatrick
parent a4a282cd49
commit 745931415c
40 changed files with 151 additions and 125 deletions
Show Stats Download Patch File Download Diff File

8
cmd/tailscaled/tailscaled.go
Unescape Escape View File

@ -358,7 +358,7 @@ func run() (err error) {
sys.Set(netMon)
}
pol := logpolicy.New(logtail.CollectionNode, netMon, nil /* use log.Printf */)
pol := logpolicy.New(logtail.CollectionNode, netMon, sys.HealthTracker(), nil /* use log.Printf */)
pol.SetVerbosityLevel(args.verbose)
logPol = pol
defer func() {
@ -677,7 +677,7 @@ func tryEngine(logf logger.Logf, sys *tsd.System, name string) (onlyNetstack boo
// configuration being unavailable (from the noop
// manager). More in Issue 4017.
// TODO(bradfitz): add a Synology-specific DNS manager.
conf.DNS, err = dns.NewOSConfigurator(logf, "") // empty interface name
conf.DNS, err = dns.NewOSConfigurator(logf, sys.HealthTracker(), "") // empty interface name
if err != nil {
return false, fmt.Errorf("dns.NewOSConfigurator: %w", err)
}
@ -699,13 +699,13 @@ func tryEngine(logf logger.Logf, sys *tsd.System, name string) (onlyNetstack boo
return false, err
}
r, err := router.New(logf, dev, sys.NetMon.Get())
r, err := router.New(logf, dev, sys.NetMon.Get(), sys.HealthTracker())
if err != nil {
dev.Close()
return false, fmt.Errorf("creating router: %w", err)
}
d, err := dns.NewOSConfigurator(logf, devName)
d, err := dns.NewOSConfigurator(logf, sys.HealthTracker(), devName)
if err != nil {
dev.Close()
r.Close()

7
cmd/tsconnect/wasm/wasm_js.go
Unescape Escape View File

@ -104,9 +104,10 @@ func newIPN(jsConfig js.Value) map[string]any {
sys.Set(store)
dialer := &tsdial.Dialer{Logf: logf}
eng, err := wgengine.NewUserspaceEngine(logf, wgengine.Config{
Dialer: dialer,
SetSubsystem: sys.Set,
ControlKnobs: sys.ControlKnobs(),
Dialer: dialer,
SetSubsystem: sys.Set,
ControlKnobs: sys.ControlKnobs(),
HealthTracker: sys.HealthTracker(),
})
if err != nil {
log.Fatal(err)

17
control/controlclient/direct.go
Unescape Escape View File

@ -1453,14 +1453,15 @@ func (c *Direct) getNoiseClient() (*NoiseClient, error) {
}
c.logf("[v1] creating new noise client")
nc, err := NewNoiseClient(NoiseOpts{
PrivKey: k,
ServerPubKey: serverNoiseKey,
ServerURL: c.serverURL,
Dialer: c.dialer,
DNSCache: c.dnsCache,
Logf: c.logf,
NetMon: c.netMon,
DialPlan: dp,
PrivKey: k,
ServerPubKey: serverNoiseKey,
ServerURL: c.serverURL,
Dialer: c.dialer,
DNSCache: c.dnsCache,
Logf: c.logf,
NetMon: c.netMon,
HealthTracker: c.health,
DialPlan: dp,
})
if err != nil {
return nil, err

6
control/controlclient/noise.go
Unescape Escape View File

@ -19,6 +19,7 @@ import (
"golang.org/x/net/http2"
"tailscale.com/control/controlbase"
"tailscale.com/control/controlhttp"
"tailscale.com/health"
"tailscale.com/net/dnscache"
"tailscale.com/net/netmon"
"tailscale.com/net/tsdial"
@ -174,6 +175,7 @@ type NoiseClient struct {
logf logger.Logf
netMon *netmon.Monitor
health *health.Tracker
// mu only protects the following variables.
mu sync.Mutex
@ -204,6 +206,8 @@ type NoiseOpts struct {
// network interface state. This field can be nil; if so, the current
// state will be looked up dynamically.
NetMon *netmon.Monitor
// HealthTracker, if non-nil, is the health tracker to use.
HealthTracker *health.Tracker
// DialPlan, if set, is a function that should return an explicit plan
// on how to connect to the server.
DialPlan func() *tailcfg.ControlDialPlan
@ -247,6 +251,7 @@ func NewNoiseClient(opts NoiseOpts) (*NoiseClient, error) {
dialPlan: opts.DialPlan,
logf: opts.Logf,
netMon: opts.NetMon,
health: opts.HealthTracker,
}
// Create the HTTP/2 Transport using a net/http.Transport
@ -453,6 +458,7 @@ func (nc *NoiseClient) dial(ctx context.Context) (*noiseConn, error) {
DialPlan: dialPlan,
Logf: nc.logf,
NetMon: nc.netMon,
HealthTracker: nc.health,
Clock: tstime.StdClock{},
}).Dial(ctx)
if err != nil {

3
control/controlhttp/client.go
Unescape Escape View File

@ -38,7 +38,6 @@ import (
"tailscale.com/control/controlbase"
"tailscale.com/envknob"
"tailscale.com/health"
"tailscale.com/net/dnscache"
"tailscale.com/net/dnsfallback"
"tailscale.com/net/netutil"
@ -434,7 +433,7 @@ func (a *Dialer) tryURLUpgrade(ctx context.Context, u *url.URL, addr netip.Addr,
// Disable HTTP2, since h2 can't do protocol switching.
tr.TLSClientConfig.NextProtos = []string{}
tr.TLSNextProto = map[string]func(string, *tls.Conn) http.RoundTripper{}
tr.TLSClientConfig = tlsdial.Config(a.Hostname, health.Global, tr.TLSClientConfig)
tr.TLSClientConfig = tlsdial.Config(a.Hostname, a.HealthTracker, tr.TLSClientConfig)
if !tr.TLSClientConfig.InsecureSkipVerify {
panic("unexpected") // should be set by tlsdial.Config
}

4
control/controlhttp/constants.go
Unescape Escape View File

@ -8,6 +8,7 @@ import (
"net/url"
"time"
"tailscale.com/health"
"tailscale.com/net/dnscache"
"tailscale.com/net/netmon"
"tailscale.com/tailcfg"
@ -79,6 +80,9 @@ type Dialer struct {
NetMon *netmon.Monitor
// HealthTracker, if non-nil, is the health tracker to use.
HealthTracker *health.Tracker
// DialPlan, if set, contains instructions from the control server on
// how to connect to it. If present, we will try the methods in this
// plan before falling back to DNS.

12
health/health.go
Unescape Escape View File

@ -30,15 +30,9 @@ var (
debugHandler map[string]http.Handler
)
// Global is a global health tracker for the process.
//
// TODO(bradfitz): finish moving all reference to this plumb it (ultimately out
// from tsd.System) so a process can have multiple tsnet/etc instances with
// their own health trackers. But for now (2024-04-25), the tsd.System value
// given out is just this one, until that's the only remaining Global reference
// remaining.
var Global = new(Tracker)
// Tracker tracks the health of various Tailscale subsystems,
// comparing each subsystems' state with each other to make sure
// they're consistent based on the user's intended state.
type Tracker struct {
// mu guards everything in this var block.
mu sync.Mutex

2
ipn/ipnlocal/local.go
Unescape Escape View File

@ -415,7 +415,7 @@ func NewLocalBackend(logf logger.Logf, logID logid.PublicID, sys *tsd.System, lo
}
netMon := sys.NetMon.Get()
b.sockstatLogger, err = sockstatlog.NewLogger(logpolicy.LogsDir(logf), logf, logID, netMon)
b.sockstatLogger, err = sockstatlog.NewLogger(logpolicy.LogsDir(logf), logf, logID, netMon, sys.HealthTracker())
if err != nil {
log.Printf("error setting up sockstat logger: %v", err)
}

5
log/sockstatlog/logger.go
Unescape Escape View File

@ -17,6 +17,7 @@ import (
"sync/atomic"
"time"
"tailscale.com/health"
"tailscale.com/logpolicy"
"tailscale.com/logtail"
"tailscale.com/logtail/filch"
@ -93,7 +94,7 @@ func SockstatLogID(logID logid.PublicID) logid.PrivateID {
// The returned Logger is not yet enabled, and must be shut down with Shutdown when it is no longer needed.
// Logs will be uploaded to the log server using a new log ID derived from the provided backend logID.
// The netMon parameter is optional; if non-nil it's used to do faster interface lookups.
func NewLogger(logdir string, logf logger.Logf, logID logid.PublicID, netMon *netmon.Monitor) (*Logger, error) {
func NewLogger(logdir string, logf logger.Logf, logID logid.PublicID, netMon *netmon.Monitor, health *health.Tracker) (*Logger, error) {
if !sockstats.IsAvailable {
return nil, nil
}
@ -113,7 +114,7 @@ func NewLogger(logdir string, logf logger.Logf, logID logid.PublicID, netMon *ne
logger := &Logger{
logf: logf,
filch: filch,
tr: logpolicy.NewLogtailTransport(logtail.DefaultHost, netMon, logf),
tr: logpolicy.NewLogtailTransport(logtail.DefaultHost, netMon, health, logf),
}
logger.logger = logtail.NewLogger(logtail.Config{
BaseURL: logpolicy.LogURL(),

2
log/sockstatlog/logger_test.go
Unescape Escape View File

@ -23,7 +23,7 @@ func TestResourceCleanup(t *testing.T) {
if err != nil {
t.Fatal(err)
}
lg, err := NewLogger(td, logger.Discard, id.Public(), nil)
lg, err := NewLogger(td, logger.Discard, id.Public(), nil, nil)
if err != nil {
t.Fatal(err)
}

14
logpolicy/logpolicy.go
Unescape Escape View File

@ -453,13 +453,13 @@ func tryFixLogStateLocation(dir, cmdname string, logf logger.Logf) {
// The logf parameter is optional; if non-nil, information logs (e.g. when
// migrating state) are sent to that logger, and global changes to the log
// package are avoided. If nil, logs will be printed using log.Printf.
func New(collection string, netMon *netmon.Monitor, logf logger.Logf) *Policy {
return NewWithConfigPath(collection, "", "", netMon, logf)
func New(collection string, netMon *netmon.Monitor, health *health.Tracker, logf logger.Logf) *Policy {
return NewWithConfigPath(collection, "", "", netMon, health, logf)
}
// NewWithConfigPath is identical to New, but uses the specified directory and
// command name. If either is empty, it derives them automatically.
func NewWithConfigPath(collection, dir, cmdName string, netMon *netmon.Monitor, logf logger.Logf) *Policy {
func NewWithConfigPath(collection, dir, cmdName string, netMon *netmon.Monitor, health *health.Tracker, logf logger.Logf) *Policy {
var lflags int
if term.IsTerminal(2) || runtime.GOOS == "windows" {
lflags = 0
@ -555,7 +555,7 @@ func NewWithConfigPath(collection, dir, cmdName string, netMon *netmon.Monitor,
PrivateID: newc.PrivateID,
Stderr: logWriter{console},
CompressLogs: true,
HTTPC: &http.Client{Transport: NewLogtailTransport(logtail.DefaultHost, netMon, logf)},
HTTPC: &http.Client{Transport: NewLogtailTransport(logtail.DefaultHost, netMon, health, logf)},
}
if collection == logtail.CollectionNode {
conf.MetricsDelta = clientmetric.EncodeLogTailMetricsDelta
@ -570,7 +570,7 @@ func NewWithConfigPath(collection, dir, cmdName string, netMon *netmon.Monitor,
logf("You have enabled a non-default log target. Doing without being told to by Tailscale staff or your network administrator will make getting support difficult.")
conf.BaseURL = val
u, _ := url.Parse(val)
conf.HTTPC = &http.Client{Transport: NewLogtailTransport(u.Host, netMon, logf)}
conf.HTTPC = &http.Client{Transport: NewLogtailTransport(u.Host, netMon, health, logf)}
}
filchOptions := filch.Options{
@ -742,7 +742,7 @@ func dialContext(ctx context.Context, netw, addr string, netMon *netmon.Monitor,
//
// The logf parameter is optional; if non-nil, logs are printed using the
// provided function; if nil, log.Printf will be used instead.
func NewLogtailTransport(host string, netMon *netmon.Monitor, logf logger.Logf) http.RoundTripper {
func NewLogtailTransport(host string, netMon *netmon.Monitor, health *health.Tracker, logf logger.Logf) http.RoundTripper {
if testenv.InTest() {
return noopPretendSuccessTransport{}
}
@ -783,7 +783,7 @@ func NewLogtailTransport(host string, netMon *netmon.Monitor, logf logger.Logf)
tr.TLSNextProto = map[string]func(authority string, c *tls.Conn) http.RoundTripper{}
}
tr.TLSClientConfig = tlsdial.Config(host, health.Global, tr.TLSClientConfig)
tr.TLSClientConfig = tlsdial.Config(host, health, tr.TLSClientConfig)
return tr
}

13
net/dns/direct.go
Unescape Escape View File

@ -21,6 +21,7 @@ import (
"sync"
"time"
"tailscale.com/health"
"tailscale.com/net/dns/resolvconffile"
"tailscale.com/net/tsaddr"
"tailscale.com/types/logger"
@ -116,8 +117,9 @@ func restartResolved() error {
// The caller must call Down before program shutdown
// or as cleanup if the program terminates unexpectedly.
type directManager struct {
logf logger.Logf
fs wholeFileFS
logf logger.Logf
health *health.Tracker
fs wholeFileFS
// renameBroken is set if fs.Rename to or from /etc/resolv.conf
// fails. This can happen in some container runtimes, where
// /etc/resolv.conf is bind-mounted from outside the container,
@ -140,14 +142,15 @@ type directManager struct {
}
//lint:ignore U1000 used in manager_{freebsd,openbsd}.go
func newDirectManager(logf logger.Logf) *directManager {
return newDirectManagerOnFS(logf, directFS{})
func newDirectManager(logf logger.Logf, health *health.Tracker) *directManager {
return newDirectManagerOnFS(logf, health, directFS{})
}
func newDirectManagerOnFS(logf logger.Logf, fs wholeFileFS) *directManager {
func newDirectManagerOnFS(logf logger.Logf, health *health.Tracker, fs wholeFileFS) *directManager {
ctx, cancel := context.WithCancel(context.Background())
m := &directManager{
logf: logf,
health: health,
fs: fs,
ctx: ctx,
ctxClose: cancel,

4
net/dns/direct_linux.go
Unescape Escape View File

@ -78,7 +78,7 @@ func (m *directManager) checkForFileTrample() {
return
}
if bytes.Equal(cur, want) {
health.Global.SetWarnable(warnTrample, nil)
m.health.SetWarnable(warnTrample, nil)
if lastWarn != nil {
m.mu.Lock()
m.lastWarnContents = nil
@ -101,7 +101,7 @@ func (m *directManager) checkForFileTrample() {
show = show[:1024]
}
m.logf("trample: resolv.conf changed from what we expected. did some other program interfere? current contents: %q", show)
health.Global.SetWarnable(warnTrample, errors.New("Linux DNS config not ideal. /etc/resolv.conf overwritten. See https://tailscale.com/s/dns-fight"))
m.health.SetWarnable(warnTrample, errors.New("Linux DNS config not ideal. /etc/resolv.conf overwritten. See https://tailscale.com/s/dns-fight"))
}
func (m *directManager) closeInotifyOnDone(ctx context.Context, in *gonotify.Inotify) {

16
net/dns/manager.go
Unescape Escape View File

@ -42,7 +42,8 @@ const maxActiveQueries = 256
// Manager manages system DNS settings.
type Manager struct {
logf logger.Logf
logf logger.Logf
health *health.Tracker
activeQueriesAtomic int32
@ -55,7 +56,7 @@ type Manager struct {
// NewManagers created a new manager from the given config.
// The netMon parameter is optional; if non-nil it's used to do faster interface lookups.
func NewManager(logf logger.Logf, oscfg OSConfigurator, netMon *netmon.Monitor, dialer *tsdial.Dialer, linkSel resolver.ForwardLinkSelector, knobs *controlknobs.Knobs) *Manager {
func NewManager(logf logger.Logf, oscfg OSConfigurator, netMon *netmon.Monitor, health *health.Tracker, dialer *tsdial.Dialer, linkSel resolver.ForwardLinkSelector, knobs *controlknobs.Knobs) *Manager {
if dialer == nil {
panic("nil Dialer")
}
@ -64,6 +65,7 @@ func NewManager(logf logger.Logf, oscfg OSConfigurator, netMon *netmon.Monitor,
logf: logf,
resolver: resolver.New(logf, netMon, linkSel, dialer, knobs),
os: oscfg,
health: health,
}
m.ctx, m.ctxCancel = context.WithCancel(context.Background())
m.logf("using %T", m.os)
@ -94,10 +96,10 @@ func (m *Manager) Set(cfg Config) error {
return err
}
if err := m.os.SetDNS(ocfg); err != nil {
health.Global.SetDNSOSHealth(err)
m.health.SetDNSOSHealth(err)
return err
}
health.Global.SetDNSOSHealth(nil)
m.health.SetDNSOSHealth(nil)
return nil
}
@ -248,7 +250,7 @@ func (m *Manager) compileConfig(cfg Config) (rcfg resolver.Config, ocfg OSConfig
// This is currently (2022-10-13) expected on certain iOS and macOS
// builds.
} else {
health.Global.SetDNSOSHealth(err)
m.health.SetDNSOSHealth(err)
return resolver.Config{}, OSConfig{}, err
}
}
@ -453,12 +455,12 @@ func (m *Manager) FlushCaches() error {
// in case the Tailscale daemon terminated without closing the router.
// No other state needs to be instantiated before this runs.
func CleanUp(logf logger.Logf, interfaceName string) {
oscfg, err := NewOSConfigurator(logf, interfaceName)
oscfg, err := NewOSConfigurator(logf, nil, interfaceName)
if err != nil {
logf("creating dns cleanup: %v", err)
return
}
dns := NewManager(logf, oscfg, nil, &tsdial.Dialer{Logf: logf}, nil, nil)
dns := NewManager(logf, oscfg, nil, nil, &tsdial.Dialer{Logf: logf}, nil, nil)
if err := dns.Down(); err != nil {
logf("dns down: %v", err)
}

3
net/dns/manager_darwin.go
Unescape Escape View File

@ -8,11 +8,12 @@ import (
"os"
"go4.org/mem"
"tailscale.com/health"
"tailscale.com/types/logger"
"tailscale.com/util/mak"
)
func NewOSConfigurator(logf logger.Logf, ifName string) (OSConfigurator, error) {
func NewOSConfigurator(logf logger.Logf, health *health.Tracker, ifName string) (OSConfigurator, error) {
return &darwinConfigurator{logf: logf, ifName: ifName}, nil
}

10
net/dns/manager_default.go
Unescape Escape View File

@ -5,11 +5,11 @@
package dns
import "tailscale.com/types/logger"
import (
"tailscale.com/health"
"tailscale.com/types/logger"
)
func NewOSConfigurator(logger.Logf, string) (OSConfigurator, error) {
// TODO(dmytro): on darwin, we should use a macOS-specific method such as scutil.
// This is currently not implemented. Editing /etc/resolv.conf does not work,
// as most applications use the system resolver, which disregards it.
func NewOSConfigurator(logger.Logf, *health.Tracker, string) (OSConfigurator, error) {
return NewNoopManager()
}

11
net/dns/manager_freebsd.go
Unescape Escape View File

@ -7,13 +7,14 @@ import (
"fmt"
"os"
"tailscale.com/health"
"tailscale.com/types/logger"
)
func NewOSConfigurator(logf logger.Logf, _ string) (OSConfigurator, error) {
func NewOSConfigurator(logf logger.Logf, health *health.Tracker, _ string) (OSConfigurator, error) {
bs, err := os.ReadFile("/etc/resolv.conf")
if os.IsNotExist(err) {
return newDirectManager(logf), nil
return newDirectManager(logf, health), nil
}
if err != nil {
return nil, fmt.Errorf("reading /etc/resolv.conf: %w", err)
@ -23,16 +24,16 @@ func NewOSConfigurator(logf logger.Logf, _ string) (OSConfigurator, error) {
case "resolvconf":
switch resolvconfStyle() {
case "":
return newDirectManager(logf), nil
return newDirectManager(logf, health), nil
case "debian":
return newDebianResolvconfManager(logf)
case "openresolv":
return newOpenresolvManager(logf)
default:
logf("[unexpected] got unknown flavor of resolvconf %q, falling back to direct manager", resolvconfStyle())
return newDirectManager(logf), nil
return newDirectManager(logf, health), nil
}
default:
return newDirectManager(logf), nil
return newDirectManager(logf, health), nil
}
}

14
net/dns/manager_linux.go
Unescape Escape View File

@ -31,7 +31,7 @@ func (kv kv) String() string {
var publishOnce sync.Once
func NewOSConfigurator(logf logger.Logf, interfaceName string) (ret OSConfigurator, err error) {
func NewOSConfigurator(logf logger.Logf, health *health.Tracker, interfaceName string) (ret OSConfigurator, err error) {
env := newOSConfigEnv{
fs: directFS{},
dbusPing: dbusPing,
@ -40,7 +40,7 @@ func NewOSConfigurator(logf logger.Logf, interfaceName string) (ret OSConfigurat
nmVersionBetween: nmVersionBetween,
resolvconfStyle: resolvconfStyle,
}
mode, err := dnsMode(logf, env)
mode, err := dnsMode(logf, health, env)
if err != nil {
return nil, err
}
@ -52,9 +52,9 @@ func NewOSConfigurator(logf logger.Logf, interfaceName string) (ret OSConfigurat
logf("dns: using %q mode", mode)
switch mode {
case "direct":
return newDirectManagerOnFS(logf, env.fs), nil
return newDirectManagerOnFS(logf, health, env.fs), nil
case "systemd-resolved":
return newResolvedManager(logf, interfaceName)
return newResolvedManager(logf, health, interfaceName)
case "network-manager":
return newNMManager(interfaceName)
case "debian-resolvconf":
@ -63,7 +63,7 @@ func NewOSConfigurator(logf logger.Logf, interfaceName string) (ret OSConfigurat
return newOpenresolvManager(logf)
default:
logf("[unexpected] detected unknown DNS mode %q, using direct manager as last resort", mode)
return newDirectManagerOnFS(logf, env.fs), nil
return newDirectManagerOnFS(logf, health, env.fs), nil
}
}
@ -77,7 +77,7 @@ type newOSConfigEnv struct {
resolvconfStyle func() string
}
func dnsMode(logf logger.Logf, env newOSConfigEnv) (ret string, err error) {
func dnsMode(logf logger.Logf, health *health.Tracker, env newOSConfigEnv) (ret string, err error) {
var debug []kv
dbg := func(k, v string) {
debug = append(debug, kv{k, v})
@ -271,7 +271,7 @@ func dnsMode(logf logger.Logf, env newOSConfigEnv) (ret string, err error) {
return "direct", nil
}
health.Global.SetDNSManagerHealth(errors.New("systemd-resolved and NetworkManager are wired together incorrectly; MagicDNS will probably not work. For more info, see https://tailscale.com/s/resolved-nm"))
health.SetDNSManagerHealth(errors.New("systemd-resolved and NetworkManager are wired together incorrectly; MagicDNS will probably not work. For more info, see https://tailscale.com/s/resolved-nm"))
dbg("nm-safe", "no")
return "systemd-resolved", nil
default:

2
net/dns/manager_linux_test.go
Unescape Escape View File

@ -286,7 +286,7 @@ func TestLinuxDNSMode(t *testing.T) {
for _, tt := range tests {
t.Run(tt.name, func(t *testing.T) {
var logBuf tstest.MemLogger
got, err := dnsMode(logBuf.Logf, tt.env)
got, err := dnsMode(logBuf.Logf, nil, tt.env)
if err != nil {
t.Fatal(err)
}

11
net/dns/manager_openbsd.go
Unescape Escape View File

@ -8,6 +8,7 @@ import (
"fmt"
"os"
"tailscale.com/health"
"tailscale.com/types/logger"
)
@ -19,8 +20,8 @@ func (kv kv) String() string {
return fmt.Sprintf("%s=%s", kv.k, kv.v)
}
func NewOSConfigurator(logf logger.Logf, interfaceName string) (OSConfigurator, error) {
return newOSConfigurator(logf, interfaceName,
func NewOSConfigurator(logf logger.Logf, health *health.Tracker, interfaceName string) (OSConfigurator, error) {
return newOSConfigurator(logf, health, interfaceName,
newOSConfigEnv{
rcIsResolvd: rcIsResolvd,
fs: directFS{},
@ -33,7 +34,7 @@ type newOSConfigEnv struct {
rcIsResolvd func(resolvConfContents []byte) bool
}
func newOSConfigurator(logf logger.Logf, interfaceName string, env newOSConfigEnv) (ret OSConfigurator, err error) {
func newOSConfigurator(logf logger.Logf, health *health.Tracker, interfaceName string, env newOSConfigEnv) (ret OSConfigurator, err error) {
var debug []kv
dbg := func(k, v string) {
debug = append(debug, kv{k, v})
@ -48,7 +49,7 @@ func newOSConfigurator(logf logger.Logf, interfaceName string, env newOSConfigEn
bs, err := env.fs.ReadFile(resolvConf)
if os.IsNotExist(err) {
dbg("rc", "missing")
return newDirectManager(logf), nil
return newDirectManager(logf, health), nil
}
if err != nil {
return nil, fmt.Errorf("reading /etc/resolv.conf: %w", err)
@ -60,7 +61,7 @@ func newOSConfigurator(logf logger.Logf, interfaceName string, env newOSConfigEn
}
dbg("resolvd", "missing")
return newDirectManager(logf), nil
return newDirectManager(logf, health), nil
}
func rcIsResolvd(resolvConfContents []byte) bool {

4
net/dns/manager_tcp_test.go
Unescape Escape View File

@ -87,7 +87,7 @@ func TestDNSOverTCP(t *testing.T) {
SearchDomains: fqdns("coffee.shop"),
},
}
m := NewManager(t.Logf, &f, nil, new(tsdial.Dialer), nil, nil)
m := NewManager(t.Logf, &f, nil, nil, new(tsdial.Dialer), nil, nil)
m.resolver.TestOnlySetHook(f.SetResolver)
m.Set(Config{
Hosts: hosts(
@ -172,7 +172,7 @@ func TestDNSOverTCP_TooLarge(t *testing.T) {
SearchDomains: fqdns("coffee.shop"),
},
}
m := NewManager(log, &f, nil, new(tsdial.Dialer), nil, nil)
m := NewManager(log, &f, nil, nil, new(tsdial.Dialer), nil, nil)
m.resolver.TestOnlySetHook(f.SetResolver)
m.Set(Config{
Hosts: hosts("andrew.ts.com.", "1.2.3.4"),

2
net/dns/manager_test.go
Unescape Escape View File

@ -613,7 +613,7 @@ func TestManager(t *testing.T) {
SplitDNS: test.split,
BaseConfig: test.bs,
}
m := NewManager(t.Logf, &f, nil, new(tsdial.Dialer), nil, nil)
m := NewManager(t.Logf, &f, nil, nil, new(tsdial.Dialer), nil, nil)
m.resolver.TestOnlySetHook(f.SetResolver)
if err := m.Set(test.in); err != nil {

5
net/dns/manager_windows.go
Unescape Escape View File

@ -23,6 +23,7 @@ import (
"golang.zx2c4.com/wireguard/windows/tunnel/winipcfg"
"tailscale.com/atomicfile"
"tailscale.com/envknob"
"tailscale.com/health"
"tailscale.com/types/logger"
"tailscale.com/util/dnsname"
"tailscale.com/util/winutil"
@ -44,11 +45,11 @@ type windowsManager struct {
closing bool
}
func NewOSConfigurator(logf logger.Logf, interfaceName string) (OSConfigurator, error) {
func NewOSConfigurator(logf logger.Logf, health *health.Tracker, interfaceName string) (OSConfigurator, error) {
ret := &windowsManager{
logf: logf,
guid: interfaceName,
wslManager: newWSLManager(logf),
wslManager: newWSLManager(logf, health),
}
if isWindows10OrBetter() {

4
net/dns/manager_windows_test.go
Unescape Escape View File

@ -84,7 +84,7 @@ func TestManagerWindowsGPCopy(t *testing.T) {
}
defer delIfKey()
cfg, err := NewOSConfigurator(logf, fakeInterface.String())
cfg, err := NewOSConfigurator(logf, nil, fakeInterface.String())
if err != nil {
t.Fatalf("NewOSConfigurator: %v\n", err)
}
@ -213,7 +213,7 @@ func runTest(t *testing.T, isLocal bool) {
}
defer delIfKey()
cfg, err := NewOSConfigurator(logf, fakeInterface.String())
cfg, err := NewOSConfigurator(logf, nil, fakeInterface.String())
if err != nil {
t.Fatalf("NewOSConfigurator: %v\n", err)
}

16
net/dns/resolved.go
Unescape Escape View File

@ -63,13 +63,14 @@ type resolvedManager struct {
ctx context.Context
cancel func() // terminate the context, for close
logf logger.Logf
ifidx int
logf logger.Logf
health *health.Tracker
ifidx int
configCR chan changeRequest // tracks OSConfigs changes and error responses
}
func newResolvedManager(logf logger.Logf, interfaceName string) (*resolvedManager, error) {
func newResolvedManager(logf logger.Logf, health *health.Tracker, interfaceName string) (*resolvedManager, error) {
iface, err := net.InterfaceByName(interfaceName)
if err != nil {
return nil, err
@ -82,8 +83,9 @@ func newResolvedManager(logf logger.Logf, interfaceName string) (*resolvedManage
ctx: ctx,
cancel: cancel,
logf: logf,
ifidx: iface.Index,
logf: logf,
health: health,
ifidx: iface.Index,
configCR: make(chan changeRequest),
}
@ -163,7 +165,7 @@ func (m *resolvedManager) run(ctx context.Context) {
// Reset backoff and SetNSOSHealth after successful on reconnect.
bo.BackOff(ctx, nil)
health.Global.SetDNSOSHealth(nil)
m.health.SetDNSOSHealth(nil)
return nil
}
@ -241,7 +243,7 @@ func (m *resolvedManager) run(ctx context.Context) {
// Set health while holding the lock, because this will
// graciously serialize the resync's health outcome with a
// concurrent SetDNS call.
health.Global.SetDNSOSHealth(err)
m.health.SetDNSOSHealth(err)
if err != nil {
m.logf("failed to configure systemd-resolved: %v", err)
}

11
net/dns/wsl_windows.go
Unescape Escape View File

@ -16,6 +16,7 @@ import (
"time"
"golang.org/x/sys/windows"
"tailscale.com/health"
"tailscale.com/types/logger"
"tailscale.com/util/winutil"
)
@ -54,12 +55,14 @@ func wslDistros() ([]string, error) {
// wslManager is a DNS manager for WSL2 linux distributions.
// It configures /etc/wsl.conf and /etc/resolv.conf.
type wslManager struct {
logf logger.Logf
logf logger.Logf
health *health.Tracker
}
func newWSLManager(logf logger.Logf) *wslManager {
func newWSLManager(logf logger.Logf, health *health.Tracker) *wslManager {
m := &wslManager{
logf: logf,
logf: logf,
health: health,
}
return m
}
@ -73,7 +76,7 @@ func (wm *wslManager) SetDNS(cfg OSConfig) error {
}
managers := make(map[string]*directManager)
for _, distro := range distros {
managers[distro] = newDirectManagerOnFS(wm.logf, wslFS{
managers[distro] = newDirectManagerOnFS(wm.logf, wm.health, wslFS{
user: "root",
distro: distro,
})

8
tsd/tsd.go
Unescape Escape View File

@ -139,14 +139,6 @@ func (s *System) ProxyMapper() *proxymap.Mapper {
// HealthTracker returns the system health tracker.
func (s *System) HealthTracker() *health.Tracker {
// TODO(bradfitz): plumb the tsd.System.HealthTracker() value
// everywhere and then then remove this use of the global
// and remove health.Global entirely. But for now we keep
// the two in sync during plumbing.
const stillPlumbing = true
if stillPlumbing {
return health.Global
}
return &s.healthTracker
}

9
tsnet/tsnet.go
Unescape Escape View File

@ -31,6 +31,7 @@ import (
"tailscale.com/client/tailscale"
"tailscale.com/control/controlclient"
"tailscale.com/envknob"
"tailscale.com/health"
"tailscale.com/hostinfo"
"tailscale.com/ipn"
"tailscale.com/ipn/ipnlocal"
@ -504,7 +505,8 @@ func (s *Server) start() (reterr error) {
return fmt.Errorf("%v is not a directory", s.rootPath)
}
if err := s.startLogger(&closePool); err != nil {
sys := new(tsd.System)
if err := s.startLogger(&closePool, sys.HealthTracker()); err != nil {
return err
}
@ -514,7 +516,6 @@ func (s *Server) start() (reterr error) {
}
closePool.add(s.netMon)
sys := new(tsd.System)
s.dialer = &tsdial.Dialer{Logf: logf} // mutated below (before used)
eng, err := wgengine.NewUserspaceEngine(logf, wgengine.Config{
ListenPort: s.Port,
@ -627,7 +628,7 @@ func (s *Server) start() (reterr error) {
return nil
}
func (s *Server) startLogger(closePool *closeOnErrorPool) error {
func (s *Server) startLogger(closePool *closeOnErrorPool, health *health.Tracker) error {
if testenv.InTest() {
return nil
}
@ -658,7 +659,7 @@ func (s *Server) startLogger(closePool *closeOnErrorPool) error {
Stderr: io.Discard, // log everything to Buffer
Buffer: s.logbuffer,
CompressLogs: true,
HTTPC: &http.Client{Transport: logpolicy.NewLogtailTransport(logtail.DefaultHost, s.netMon, s.logf)},
HTTPC: &http.Client{Transport: logpolicy.NewLogtailTransport(logtail.DefaultHost, s.netMon, health, s.logf)},
MetricsDelta: clientmetric.EncodeLogTailMetricsDelta,
}
s.logtail = logtail.NewLogger(c, s.logf)

5
wgengine/netlog/logger.go
Unescape Escape View File

@ -16,6 +16,7 @@ import (
"sync"
"time"
"tailscale.com/health"
"tailscale.com/logpolicy"
"tailscale.com/logtail"
"tailscale.com/net/connstats"
@ -92,7 +93,7 @@ var testClient *http.Client
// The IP protocol and source port are always zero.
// The sock is used to populated the PhysicalTraffic field in Message.
// The netMon parameter is optional; if non-nil it's used to do faster interface lookups.
func (nl *Logger) Startup(nodeID tailcfg.StableNodeID, nodeLogID, domainLogID logid.PrivateID, tun, sock Device, netMon *netmon.Monitor) error {
func (nl *Logger) Startup(nodeID tailcfg.StableNodeID, nodeLogID, domainLogID logid.PrivateID, tun, sock Device, netMon *netmon.Monitor, health *health.Tracker) error {
nl.mu.Lock()
defer nl.mu.Unlock()
if nl.logger != nil {
@ -101,7 +102,7 @@ func (nl *Logger) Startup(nodeID tailcfg.StableNodeID, nodeLogID, domainLogID lo
// Startup a log stream to Tailscale's logging service.
logf := log.Printf
httpc := &http.Client{Transport: logpolicy.NewLogtailTransport(logtail.DefaultHost, netMon, logf)}
httpc := &http.Client{Transport: logpolicy.NewLogtailTransport(logtail.DefaultHost, netMon, health, logf)}
if testClient != nil {
httpc = testClient
}

6
wgengine/router/ifconfig_windows.go
Unescape Escape View File

@ -237,7 +237,7 @@ func interfaceFromLUID(luid winipcfg.LUID, flags winipcfg.GAAFlags) (*winipcfg.I
var networkCategoryWarning = health.NewWarnable(health.WithMapDebugFlag("warn-network-category-unhealthy"))
func configureInterface(cfg *Config, tun *tun.NativeTun) (retErr error) {
func configureInterface(cfg *Config, tun *tun.NativeTun, health *health.Tracker) (retErr error) {
var mtu = tstun.DefaultTUNMTU()
luid := winipcfg.LUID(tun.LUID())
iface, err := interfaceFromLUID(luid,
@ -268,10 +268,10 @@ func configureInterface(cfg *Config, tun *tun.NativeTun) (retErr error) {
for i := range tries {
found, err := setPrivateNetwork(luid)
if err != nil {
health.Global.SetWarnable(networkCategoryWarning, fmt.Errorf("set-network-category: %w", err))
health.SetWarnable(networkCategoryWarning, fmt.Errorf("set-network-category: %w", err))
log.Printf("setPrivateNetwork(try=%d): %v", i, err)
} else {
health.Global.SetWarnable(networkCategoryWarning, nil)
health.SetWarnable(networkCategoryWarning, nil)
if found {
if i > 0 {
log.Printf("setPrivateNetwork(try=%d): success", i)

5
wgengine/router/router.go
Unescape Escape View File

@ -10,6 +10,7 @@ import (
"reflect"
"github.com/tailscale/wireguard-go/tun"
"tailscale.com/health"
"tailscale.com/net/netmon"
"tailscale.com/types/logger"
"tailscale.com/types/preftype"
@ -44,9 +45,9 @@ type Router interface {
//
// If netMon is nil, it's not used. It's currently (2021-07-20) only
// used on Linux in some situations.
func New(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor) (Router, error) {
func New(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor, health *health.Tracker) (Router, error) {
logf = logger.WithPrefix(logf, "router: ")
return newUserspaceRouter(logf, tundev, netMon)
return newUserspaceRouter(logf, tundev, netMon, health)
}
// CleanUp restores the system network configuration to its original state

5
wgengine/router/router_darwin.go
Unescape Escape View File

@ -5,12 +5,13 @@ package router
import (
"github.com/tailscale/wireguard-go/tun"
"tailscale.com/health"
"tailscale.com/net/netmon"
"tailscale.com/types/logger"
)
func newUserspaceRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor) (Router, error) {
return newUserspaceBSDRouter(logf, tundev, netMon)
func newUserspaceRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor, health *health.Tracker) (Router, error) {
return newUserspaceBSDRouter(logf, tundev, netMon, health)
}
func cleanUp(logger.Logf, string) {

3
wgengine/router/router_default.go
Unescape Escape View File

@ -10,11 +10,12 @@ import (
"runtime"
"github.com/tailscale/wireguard-go/tun"
"tailscale.com/health"
"tailscale.com/net/netmon"
"tailscale.com/types/logger"
)
func newUserspaceRouter(logf logger.Logf, tunDev tun.Device, netMon *netmon.Monitor) (Router, error) {
func newUserspaceRouter(logf logger.Logf, tunDev tun.Device, netMon *netmon.Monitor, health *health.Tracker) (Router, error) {
return nil, fmt.Errorf("unsupported OS %q", runtime.GOOS)
}

5
wgengine/router/router_freebsd.go
Unescape Escape View File

@ -5,6 +5,7 @@ package router
import (
"github.com/tailscale/wireguard-go/tun"
"tailscale.com/health"
"tailscale.com/net/netmon"
"tailscale.com/types/logger"
)
@ -14,8 +15,8 @@ import (
// Work is currently underway for an in-kernel FreeBSD implementation of wireguard
// https://svnweb.freebsd.org/base?view=revision&revision=357986
func newUserspaceRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor) (Router, error) {
return newUserspaceBSDRouter(logf, tundev, netMon)
func newUserspaceRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor, health *health.Tracker) (Router, error) {
return newUserspaceBSDRouter(logf, tundev, netMon, health)
}
func cleanUp(logf logger.Logf, interfaceName string) {

3
wgengine/router/router_linux.go
Unescape Escape View File

@ -22,6 +22,7 @@ import (
"golang.org/x/sys/unix"
"golang.org/x/time/rate"
"tailscale.com/envknob"
"tailscale.com/health"
"tailscale.com/net/netmon"
"tailscale.com/types/logger"
"tailscale.com/types/preftype"
@ -69,7 +70,7 @@ type linuxRouter struct {
magicsockPortV6 uint16
}
func newUserspaceRouter(logf logger.Logf, tunDev tun.Device, netMon *netmon.Monitor) (Router, error) {
func newUserspaceRouter(logf logger.Logf, tunDev tun.Device, netMon *netmon.Monitor, health *health.Tracker) (Router, error) {
tunname, err := tunDev.Name()
if err != nil {
return nil, err

2
wgengine/router/router_linux_test.go
Unescape Escape View File

@ -886,7 +886,7 @@ func newLinuxRootTest(t *testing.T) *linuxTest {
mon.Start()
lt.mon = mon
r, err := newUserspaceRouter(logf, lt.tun, mon)
r, err := newUserspaceRouter(logf, lt.tun, mon, nil)
if err != nil {
lt.Close()
t.Fatal(err)

3
wgengine/router/router_openbsd.go
Unescape Escape View File

@ -12,6 +12,7 @@ import (
"github.com/tailscale/wireguard-go/tun"
"go4.org/netipx"
"tailscale.com/health"
"tailscale.com/net/netmon"
"tailscale.com/types/logger"
"tailscale.com/util/set"
@ -30,7 +31,7 @@ type openbsdRouter struct {
routes set.Set[netip.Prefix]
}
func newUserspaceRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor) (Router, error) {
func newUserspaceRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor, health *health.Tracker) (Router, error) {
tunname, err := tundev.Name()
if err != nil {
return nil, err

5
wgengine/router/router_userspace_bsd.go
Unescape Escape View File

@ -14,6 +14,7 @@ import (
"github.com/tailscale/wireguard-go/tun"
"go4.org/netipx"
"tailscale.com/health"
"tailscale.com/net/netmon"
"tailscale.com/net/tsaddr"
"tailscale.com/types/logger"
@ -23,12 +24,13 @@ import (
type userspaceBSDRouter struct {
logf logger.Logf
netMon *netmon.Monitor
health *health.Tracker
tunname string
local []netip.Prefix
routes map[netip.Prefix]bool
}
func newUserspaceBSDRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor) (Router, error) {
func newUserspaceBSDRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor, health *health.Tracker) (Router, error) {
tunname, err := tundev.Name()
if err != nil {
return nil, err
@ -37,6 +39,7 @@ func newUserspaceBSDRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.M
return &userspaceBSDRouter{
logf: logf,
netMon: netMon,
health: health,
tunname: tunname,
}, nil
}

7
wgengine/router/router_windows.go
Unescape Escape View File

@ -22,6 +22,7 @@ import (
"github.com/tailscale/wireguard-go/tun"
"golang.org/x/sys/windows"
"golang.zx2c4.com/wireguard/windows/tunnel/winipcfg"
"tailscale.com/health"
"tailscale.com/logtail/backoff"
"tailscale.com/net/dns"
"tailscale.com/net/netmon"
@ -31,12 +32,13 @@ import (
type winRouter struct {
logf func(fmt string, args ...any)
netMon *netmon.Monitor // may be nil
health *health.Tracker
nativeTun *tun.NativeTun
routeChangeCallback *winipcfg.RouteChangeCallback
firewall *firewallTweaker
}
func newUserspaceRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor) (Router, error) {
func newUserspaceRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Monitor, health *health.Tracker) (Router, error) {
nativeTun := tundev.(*tun.NativeTun)
luid := winipcfg.LUID(nativeTun.LUID())
guid, err := luid.GUID()
@ -47,6 +49,7 @@ func newUserspaceRouter(logf logger.Logf, tundev tun.Device, netMon *netmon.Moni
return &winRouter{
logf: logf,
netMon: netMon,
health: health,
nativeTun: nativeTun,
firewall: &firewallTweaker{
logf: logger.WithPrefix(logf, "firewall: "),
@ -80,7 +83,7 @@ func (r *winRouter) Set(cfg *Config) error {
}
r.firewall.set(localAddrs, cfg.Routes, cfg.LocalRoutes)
err := configureInterface(cfg, r.nativeTun)
err := configureInterface(cfg, r.nativeTun, r.health)
if err != nil {
r.logf("ConfigureInterface: %v", err)
return err

4
wgengine/userspace.go
Unescape Escape View File

@ -341,7 +341,7 @@ func NewUserspaceEngine(logf logger.Logf, conf Config) (_ Engine, reterr error)
tunName, _ := conf.Tun.Name()
conf.Dialer.SetTUNName(tunName)
conf.Dialer.SetNetMon(e.netMon)
e.dns = dns.NewManager(logf, conf.DNS, e.netMon, conf.Dialer, fwdDNSLinkSelector{e, tunName}, conf.ControlKnobs)
e.dns = dns.NewManager(logf, conf.DNS, e.netMon, e.health, conf.Dialer, fwdDNSLinkSelector{e, tunName}, conf.ControlKnobs)
// TODO: there's probably a better place for this
sockstats.SetNetMon(e.netMon)
@ -966,7 +966,7 @@ func (e *userspaceEngine) Reconfig(cfg *wgcfg.Config, routerCfg *router.Config,
nid := cfg.NetworkLogging.NodeID
tid := cfg.NetworkLogging.DomainID
e.logf("wgengine: Reconfig: starting up network logger (node:%s tailnet:%s)", nid.Public(), tid.Public())
if err := e.networkLogger.Startup(cfg.NodeID, nid, tid, e.tundev, e.magicConn, e.netMon); err != nil {
if err := e.networkLogger.Startup(cfg.NodeID, nid, tid, e.tundev, e.magicConn, e.netMon, e.health); err != nil {
e.logf("wgengine: Reconfig: error starting up network logger: %v", err)
}
e.networkLogger.ReconfigRoutes(routerCfg)

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