Merge pull request #276 from Control-D-Inc/release-branch-v1.4.9

Release branch v1.4.9

.github/workflows/ci.yml

@@ -9,18 +9,18 @@ jobs:
       fail-fast: false
       matrix:
         os: ["windows-latest", "ubuntu-latest", "macOS-latest"]
-        go: ["1.23.x"]
+        go: ["1.24.x"]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v3
         with:
           fetch-depth: 1
-      - uses: WillAbides/setup-go-faster@v1.8.0
+      - uses: actions/setup-go@v6
         with:
           go-version: ${{ matrix.go }}
       - run: "go test -race ./..."
-      - uses: dominikh/staticcheck-action@v1.3.1
+      - uses: dominikh/staticcheck-action@v1.4.0
         with:
-          version: "2024.1.1"
+          version: "2025.1.1"
           install-go: false
           cache-key: ${{ matrix.go }}

cmd/cli/ad_windows.go

@@ -10,11 +10,12 @@ import (
 	hh "github.com/microsoft/wmi/pkg/hardware/host"
 
 	"github.com/Control-D-Inc/ctrld"
+	"github.com/Control-D-Inc/ctrld/internal/system"
 )
 
 // addExtraSplitDnsRule adds split DNS rule for domain if it's part of active directory.
 func addExtraSplitDnsRule(cfg *ctrld.Config) bool {
-	domain, err := getActiveDirectoryDomain()
+	domain, err := system.GetActiveDirectoryDomain()
 	if err != nil {
 		mainLog.Load().Debug().Msgf("unable to get active directory domain: %v", err)
 		return false

cmd/cli/ad_windows_test.go

@@ -5,14 +5,16 @@ import (
 	"testing"
 	"time"
 
-	"github.com/Control-D-Inc/ctrld"
-	"github.com/Control-D-Inc/ctrld/testhelper"
 	"github.com/stretchr/testify/assert"
+
+	"github.com/Control-D-Inc/ctrld"
+	"github.com/Control-D-Inc/ctrld/internal/system"
+	"github.com/Control-D-Inc/ctrld/testhelper"
 )
 
 func Test_getActiveDirectoryDomain(t *testing.T) {
 	start := time.Now()
-	domain, err := getActiveDirectoryDomain()
+	domain, err := system.GetActiveDirectoryDomain()
 	if err != nil {
 		t.Fatal(err)
 	}

cmd/cli/cli.go

@@ -178,7 +178,15 @@ func RunMobile(appConfig *AppConfig, appCallback *AppCallback, stopCh chan struc
 	noConfigStart = false
 	homedir = appConfig.HomeDir
 	verbose = appConfig.Verbose
-	cdUID = appConfig.CdUID
+	if appConfig.ProvisionID != "" {
+		cdOrg = appConfig.ProvisionID
+	}
+	if appConfig.CustomHostname != "" {
+		customHostname = appConfig.CustomHostname
+	}
+	if appConfig.CdUID != "" {
+		cdUID = appConfig.CdUID
+	}
 	cdUpstreamProto = appConfig.UpstreamProto
 	logPath = appConfig.LogPath
 	run(appCallback, stopCh)
@@ -274,7 +282,7 @@ func run(appCallback *AppCallback, stopCh chan struct{}) {
 	}
 	p.mu.Unlock()
 
-	processLogAndCacheFlags()
+	processLogAndCacheFlags(v, &cfg)
 
 	// Log config do not have thing to validate, so it's safe to init log here,
 	// so it's able to log information in processCDFlags.
@@ -334,7 +342,7 @@ func run(appCallback *AppCallback, stopCh chan struct{}) {
 	updated := updateListenerConfig(&cfg, notifyExitToLogServer)
 
 	if cdUID != "" {
-		processLogAndCacheFlags()
+		processLogAndCacheFlags(v, &cfg)
 	}
 
 	if updated {
@@ -634,13 +642,19 @@ func processCDFlags(cfg *ctrld.Config) (*controld.ResolverConfig, error) {
 	logger.Info().Msgf("fetching Controld D configuration from API: %s", cdUID)
 	bo := backoff.NewBackoff("processCDFlags", logf, 30*time.Second)
 	bo.LogLongerThan = 30 * time.Second
+
 	ctx := context.Background()
-	resolverConfig, err := controld.FetchResolverConfig(cdUID, rootCmd.Version, cdDev)
+	req := &controld.ResolverConfigRequest{
+		RawUID:   cdUID,
+		Version:  rootCmd.Version,
+		Metadata: ctrld.SystemMetadata(ctx),
+	}
+	resolverConfig, err := controld.FetchResolverConfig(req, cdDev)
 	for {
 		if errUrlNetworkError(err) {
 			bo.BackOff(ctx, err)
 			logger.Warn().Msg("could not fetch resolver using bootstrap DNS, retrying...")
-			resolverConfig, err = controld.FetchResolverConfig(cdUID, rootCmd.Version, cdDev)
+			resolverConfig, err = controld.FetchResolverConfig(req, cdDev)
 			continue
 		}
 		break
@@ -772,7 +786,8 @@ func processListenFlag() {
 	})
 }
 
-func processLogAndCacheFlags() {
+// processLogAndCacheFlags processes log and cache related flags
+func processLogAndCacheFlags(v *viper.Viper, cfg *ctrld.Config) {
 	if logPath != "" {
 		cfg.Service.LogPath = logPath
 	}
@@ -1507,7 +1522,12 @@ func cdUIDFromProvToken() string {
 	if customHostname != "" && !validHostname(customHostname) {
 		mainLog.Load().Fatal().Msgf("invalid custom hostname: %q", customHostname)
 	}
-	req := &controld.UtilityOrgRequest{ProvToken: cdOrg, Hostname: customHostname}
+
+	req := &controld.UtilityOrgRequest{
+		ProvToken: cdOrg,
+		Hostname:  customHostname,
+		Metadata:  ctrld.SystemMetadata(context.Background()),
+	}
 	// Process provision token if provided.
 	resolverConfig, err := controld.FetchResolverUID(req, rootCmd.Version, cdDev)
 	if err != nil {
@@ -1848,7 +1868,12 @@ func runningIface(s service.Service) *ifaceResponse {
 
 // doValidateCdRemoteConfig fetches and validates custom config for cdUID.
 func doValidateCdRemoteConfig(cdUID string, fatal bool) error {
-	rc, err := controld.FetchResolverConfig(cdUID, rootCmd.Version, cdDev)
+	req := &controld.ResolverConfigRequest{
+		RawUID:   cdUID,
+		Version:  rootCmd.Version,
+		Metadata: ctrld.SystemMetadata(context.Background()),
+	}
+	rc, err := controld.FetchResolverConfig(req, cdDev)
 	if err != nil {
 		logger := mainLog.Load().Fatal()
 		if !fatal {

cmd/cli/commands.go

@@ -189,6 +189,7 @@ func initRunCmd() *cobra.Command {
 	runCmd.Flags().StringVarP(&iface, "iface", "", "", `Update DNS setting for iface, "auto" means the default interface gateway`)
 	_ = runCmd.Flags().MarkHidden("iface")
 	runCmd.Flags().StringVarP(&cdUpstreamProto, "proto", "", ctrld.ResolverTypeDOH, `Control D upstream type, either "doh" or "doh3"`)
+	runCmd.Flags().BoolVarP(&rfc1918, "rfc1918", "", false, "Listen on RFC1918 addresses when 127.0.0.1 is the only listener")
 
 	runCmd.FParseErrWhitelist = cobra.FParseErrWhitelist{UnknownFlags: true}
 	rootCmd.AddCommand(runCmd)
@@ -531,6 +532,7 @@ NOTE: running "ctrld start" without any arguments will start already installed c
 	startCmd.Flags().BoolVarP(&skipSelfChecks, "skip_self_checks", "", false, `Skip self checks after installing ctrld service`)
 	startCmd.Flags().BoolVarP(&startOnly, "start_only", "", false, "Do not install new service")
 	_ = startCmd.Flags().MarkHidden("start_only")
+	startCmd.Flags().BoolVarP(&rfc1918, "rfc1918", "", false, "Listen on RFC1918 addresses when 127.0.0.1 is the only listener")
 
 	routerCmd := &cobra.Command{
 		Use: "setup",

cmd/cli/control_server.go

@@ -217,7 +217,12 @@ func (p *prog) registerControlServerHandler() {
 		}
 
 		// Re-fetch pin code from API.
-		if rc, err := controld.FetchResolverConfig(cdUID, rootCmd.Version, cdDev); rc != nil {
+		rcReq := &controld.ResolverConfigRequest{
+			RawUID:   cdUID,
+			Version:  rootCmd.Version,
+			Metadata: ctrld.SystemMetadata(context.Background()),
+		}
+		if rc, err := controld.FetchResolverConfig(rcReq, cdDev); rc != nil {
 			if rc.DeactivationPin != nil {
 				cdDeactivationPin.Store(*rc.DeactivationPin)
 			} else {

cmd/cli/dns_proxy.go

@@ -84,13 +84,7 @@ type upstreamForResult struct {
 	srcAddr        string
 }
 
-func (p *prog) serveDNS(mainCtx context.Context, listenerNum string) error {
-	// Start network monitoring
-	if err := p.monitorNetworkChanges(mainCtx); err != nil {
-		mainLog.Load().Error().Err(err).Msg("Failed to start network monitoring")
-		// Don't return here as we still want DNS service to run
-	}
-
+func (p *prog) serveDNS(listenerNum string) error {
 	listenerConfig := p.cfg.Listener[listenerNum]
 	// make sure ip is allocated
 	if allocErr := p.allocateIP(listenerConfig.IP); allocErr != nil {
@@ -213,8 +207,8 @@ func (p *prog) serveDNS(mainCtx context.Context, listenerNum string) error {
 				return nil
 			})
 		}
-		// When we spawn a listener on 127.0.0.1, also spawn listeners on the RFC1918
-		// addresses of the machine. So ctrld could receive queries from LAN clients.
+		// When we spawn a listener on 127.0.0.1, also spawn listeners on the RFC1918 addresses of the machine
+		// if explicitly set via setting rfc1918 flag, so ctrld could receive queries from LAN clients.
 		if needRFC1918Listeners(listenerConfig) {
 			g.Go(func() error {
 				for _, addr := range ctrld.Rfc1918Addresses() {
@@ -960,7 +954,13 @@ func (p *prog) doSelfUninstall(answer *dns.Msg) {
 	logger := mainLog.Load().With().Str("mode", "self-uninstall").Logger()
 	if p.refusedQueryCount > selfUninstallMaxQueries {
 		p.checkingSelfUninstall = true
-		_, err := controld.FetchResolverConfig(cdUID, rootCmd.Version, cdDev)
+
+		req := &controld.ResolverConfigRequest{
+			RawUID:   cdUID,
+			Version:  rootCmd.Version,
+			Metadata: ctrld.SystemMetadata(context.Background()),
+		}
+		_, err := controld.FetchResolverConfig(req, cdDev)
 		logger.Debug().Msg("maximum number of refused queries reached, checking device status")
 		selfUninstallCheck(err, p, logger)
 
@@ -1045,7 +1045,7 @@ func (p *prog) queryFromSelf(ip string) bool {
 // needRFC1918Listeners reports whether ctrld need to spawn listener for RFC 1918 addresses.
 // This is helpful for non-desktop platforms to receive queries from LAN clients.
 func needRFC1918Listeners(lc *ctrld.ListenerConfig) bool {
-	return lc.IP == "127.0.0.1" && lc.Port == 53 && !ctrld.IsDesktopPlatform()
+	return rfc1918 && lc.IP == "127.0.0.1" && lc.Port == 53
 }
 
 // ipFromARPA parses a FQDN arpa domain and return the IP address if valid.
@@ -1187,7 +1187,7 @@ func FlushDNSCache() error {
 }
 
 // monitorNetworkChanges starts monitoring for network interface changes
-func (p *prog) monitorNetworkChanges(ctx context.Context) error {
+func (p *prog) monitorNetworkChanges() error {
 	mon, err := netmon.New(func(format string, args ...any) {
 		// Always fetch the latest logger (and inject the prefix)
 		mainLog.Load().Printf("netmon: "+format, args...)
@@ -1406,9 +1406,6 @@ func (p *prog) checkUpstreamOnce(upstream string, uc *ctrld.UpstreamConfig) erro
 		return err
 	}
 
-	msg := new(dns.Msg)
-	msg.SetQuestion(".", dns.TypeNS)
-
 	timeout := 1000 * time.Millisecond
 	if uc.Timeout > 0 {
 		timeout = time.Millisecond * time.Duration(uc.Timeout)
@@ -1422,6 +1419,7 @@ func (p *prog) checkUpstreamOnce(upstream string, uc *ctrld.UpstreamConfig) erro
 	mainLog.Load().Debug().Msgf("Rebootstrapping resolver for upstream: %s", upstream)
 
 	start := time.Now()
+	msg := uc.VerifyMsg()
 	_, err = resolver.Resolve(ctx, msg)
 	duration := time.Since(start)
 

cmd/cli/library.go

@@ -18,11 +18,13 @@ type AppCallback struct {
 
 // AppConfig allows overwriting ctrld cli flags from mobile platforms.
 type AppConfig struct {
-	CdUID         string
-	HomeDir       string
-	UpstreamProto string
-	Verbose       int
-	LogPath       string
+	CdUID          string
+	ProvisionID    string
+	CustomHostname string
+	HomeDir        string
+	UpstreamProto  string
+	Verbose        int
+	LogPath        string
 }
 
 const (

cmd/cli/main.go

@@ -39,6 +39,7 @@ var (
 	skipSelfChecks    bool
 	cleanup           bool
 	startOnly         bool
+	rfc1918           bool
 
 	mainLog       atomic.Pointer[zerolog.Logger]
 	consoleWriter zerolog.ConsoleWriter

cmd/cli/os_linux.go

@@ -72,7 +72,15 @@ func setDNS(iface *net.Interface, nameservers []string) error {
 		SearchDomains: []dnsname.FQDN{},
 	}
 	if sds, err := searchDomains(); err == nil {
-		osConfig.SearchDomains = sds
+		// Filter the root domain, since it's not allowed by systemd.
+		// See https://github.com/systemd/systemd/issues/9515
+		filteredSds := slices.DeleteFunc(sds, func(s dnsname.FQDN) bool {
+			return s == "" || s == "."
+		})
+		if len(filteredSds) != len(sds) {
+			mainLog.Load().Debug().Msg(`Removed root domain "." from search domains list`)
+		}
+		osConfig.SearchDomains = filteredSds
 	} else {
 		mainLog.Load().Debug().Err(err).Msg("failed to get search domains list")
 	}

cmd/cli/prog.go

@@ -213,7 +213,8 @@ func (p *prog) runWait() {
 				continue
 			}
 			if cdUID != "" {
-				if rc, err := processCDFlags(newCfg); err != nil {
+				rc, err := processCDFlags(newCfg)
+				if err != nil {
 					logger.Err(err).Msg("could not fetch ControlD config")
 					waitOldRunDone()
 					continue
@@ -225,6 +226,10 @@ func (p *prog) runWait() {
 			}
 		}
 
+		// Though the log configuration could not be changed during reloading, we still need to
+		// process the current flags here, so runtime internal logs can be used correctly.
+		processLogAndCacheFlags(v, newCfg)
+
 		waitOldRunDone()
 
 		p.mu.Lock()
@@ -320,7 +325,12 @@ func (p *prog) apiConfigReload() {
 	}
 
 	doReloadApiConfig := func(forced bool, logger zerolog.Logger) {
-		resolverConfig, err := controld.FetchResolverConfig(cdUID, rootCmd.Version, cdDev)
+		req := &controld.ResolverConfigRequest{
+			RawUID:   cdUID,
+			Version:  rootCmd.Version,
+			Metadata: ctrld.SystemMetadata(context.Background()),
+		}
+		resolverConfig, err := controld.FetchResolverConfig(req, cdDev)
 		selfUninstallCheck(err, p, logger)
 		if err != nil {
 			logger.Warn().Err(err).Msg("could not fetch resolver config")
@@ -530,6 +540,15 @@ func (p *prog) run(reload bool, reloadCh chan struct{}) {
 		go p.watchLinkState(ctx)
 	}
 
+	if !reload {
+		go func() {
+			// Start network monitoring
+			if err := p.monitorNetworkChanges(); err != nil {
+				mainLog.Load().Error().Err(err).Msg("Failed to start network monitoring")
+			}
+		}()
+	}
+
 	for listenerNum := range p.cfg.Listener {
 		p.cfg.Listener[listenerNum].Init()
 		if !reload {
@@ -541,7 +560,7 @@ func (p *prog) run(reload bool, reloadCh chan struct{}) {
 				}
 				addr := net.JoinHostPort(listenerConfig.IP, strconv.Itoa(listenerConfig.Port))
 				mainLog.Load().Info().Msgf("starting DNS server on listener.%s: %s", listenerNum, addr)
-				if err := p.serveDNS(ctx, listenerNum); err != nil {
+				if err := p.serveDNS(listenerNum); err != nil {
 					mainLog.Load().Fatal().Err(err).Msgf("unable to start dns proxy on listener.%s", listenerNum)
 				}
 				mainLog.Load().Debug().Msgf("end of serveDNS listener.%s: %s", listenerNum, addr)

cmd/ctrld_library/main.go

@@ -28,15 +28,17 @@ type AppCallback interface {
 // Start configures utility with config.toml from provided directory.
 // This function will block until Stop is called
 // Check port availability prior to calling it.
-func (c *Controller) Start(CdUID string, HomeDir string, UpstreamProto string, logLevel int, logPath string) {
+func (c *Controller) Start(CdUID string, ProvisionID string, CustomHostname string, HomeDir string, UpstreamProto string, logLevel int, logPath string) {
 	if c.stopCh == nil {
 		c.stopCh = make(chan struct{})
 		c.Config = cli.AppConfig{
-			CdUID:         CdUID,
-			HomeDir:       HomeDir,
-			UpstreamProto: UpstreamProto,
-			Verbose:       logLevel,
-			LogPath:       logPath,
+			CdUID:          CdUID,
+			ProvisionID:    ProvisionID,
+			CustomHostname: CustomHostname,
+			HomeDir:        HomeDir,
+			UpstreamProto:  UpstreamProto,
+			Verbose:        logLevel,
+			LogPath:        logPath,
 		}
 		appCallback := mapCallback(c.AppCallback)
 		cli.RunMobile(&c.Config, &appCallback, c.stopCh)

config.go

@@ -358,6 +358,15 @@ func (uc *UpstreamConfig) Init() {
 	}
 }
 
+// VerifyMsg creates and returns a new DNS message could be used for testing upstream health.
+func (uc *UpstreamConfig) VerifyMsg() *dns.Msg {
+	msg := new(dns.Msg)
+	msg.RecursionDesired = true
+	msg.SetQuestion(".", dns.TypeNS)
+	msg.SetEdns0(4096, false) // ensure handling of large DNS response
+	return msg
+}
+
 // VerifyDomain returns the domain name that could be resolved by the upstream endpoint.
 // It returns empty for non-ControlD upstream endpoint.
 func (uc *UpstreamConfig) VerifyDomain() string {

config_quic.go

@@ -36,7 +36,7 @@ func (uc *UpstreamConfig) setupDOH3Transport() {
 func (uc *UpstreamConfig) newDOH3Transport(addrs []string) http.RoundTripper {
 	rt := &http3.Transport{}
 	rt.TLSClientConfig = &tls.Config{RootCAs: uc.certPool}
-	rt.Dial = func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (quic.EarlyConnection, error) {
+	rt.Dial = func(ctx context.Context, addr string, tlsCfg *tls.Config, cfg *quic.Config) (*quic.Conn, error) {
 		_, port, _ := net.SplitHostPort(addr)
 		// if we have a bootstrap ip set, use it to avoid DNS lookup
 		if uc.BootstrapIP != "" {
@@ -96,14 +96,14 @@ func (uc *UpstreamConfig) doh3Transport(dnsType uint16) http.RoundTripper {
 //   - quic dialer is different with net.Dialer
 //   - simplification for quic free version
 type parallelDialerResult struct {
-	conn quic.EarlyConnection
+	conn *quic.Conn
 	err  error
 }
 
 type quicParallelDialer struct{}
 
 // Dial performs parallel dialing to the given address list.
-func (d *quicParallelDialer) Dial(ctx context.Context, addrs []string, tlsCfg *tls.Config, cfg *quic.Config) (quic.EarlyConnection, error) {
+func (d *quicParallelDialer) Dial(ctx context.Context, addrs []string, tlsCfg *tls.Config, cfg *quic.Config) (*quic.Conn, error) {
 	if len(addrs) == 0 {
 		return nil, errors.New("empty addresses")
 	}

docs/known-issues.md

@@ -0,0 +1,42 @@
+# Known Issues
+
+This document outlines known issues with ctrld and their current status, workarounds, and recommendations.
+
+## macOS (Darwin) Issues
+
+### Self-Upgrade Issue on Darwin 15.5
+
+**Issue**: ctrld self-upgrading functionality may not work on macOS Darwin 15.5.
+
+**Status**: Under investigation
+
+**Description**: Users on macOS Darwin 15.5 may experience issues when ctrld attempts to perform automatic self-upgrades. The upgrade process would be triggered, but ctrld won't be upgraded.
+
+**Workarounds**:
+1. **Recommended**: Upgrade your macOS system to Darwin 15.6 or later, which has been tested and verified to work correctly with ctrld self-upgrade functionality.
+2. **Alternative**: Run `ctrld upgrade prod` directly to manually upgrade ctrld to the latest version on Darwin 15.5.
+
+**Affected Versions**: ctrld v1.4.2 and later on macOS Darwin 15.5
+
+**Last Updated**: 05/09/2025
+
+---
+
+## Contributing to Known Issues
+
+If you encounter an issue not listed here, please:
+
+1. Check the [GitHub Issues](https://github.com/Control-D-Inc/ctrld/issues) to see if it's already reported
+2. If not reported, create a new issue with:
+   - Detailed description of the problem
+   - Steps to reproduce
+   - Expected vs actual behavior
+   - System information (OS, version, architecture)
+   - ctrld version
+
+## Issue Status Legend
+
+- **Under investigation**: Issue is confirmed and being analyzed
+- **Workaround available**: Temporary solution exists while permanent fix is developed
+- **Fixed**: Issue has been resolved in a specific version
+- **Won't fix**: Issue is acknowledged but will not be addressed due to technical limitations or design decisions

docs/runtime-internal-logging.md

@@ -0,0 +1,46 @@
+# Runtime Internal Logging
+
+When no logging is configured (i.e., `log_path` is not set), ctrld automatically enables an internal logging system. This system stores logs in memory to provide troubleshooting information when problems occur.
+
+## Purpose
+
+The runtime internal logging system is designed primarily for **ctrld developers**, not end users. It captures detailed diagnostic information that can be useful for troubleshooting issues when they arise, especially in production environments where explicit logging may not be configured.
+
+## When It's Enabled
+
+Internal logging is automatically enabled when:
+
+- ctrld is running in Control D mode (i.e., `--cd` flag is provided)
+- No log file is configured (i.e., `log_path` is empty or not set)
+
+If a log file is explicitly configured via `log_path`, internal logging will **not** be enabled, as the configured log file serves the logging purpose.
+
+## How It Works
+
+The internal logging system:
+
+- Stores logs in **in-memory buffers** (not written to disk)
+- Captures logs at **debug level** for normal operations and **warn level** for warnings
+- Maintains separate buffers for normal logs and warning logs
+- Automatically manages buffer size to prevent unbounded memory growth
+- Preserves initialization logs even when buffers overflow
+
+## Configuration
+
+**Important**: The `log_level` configuration option does **not** affect the internal logging system. Internal logging always operates at debug level for normal logs and warn level for warnings, regardless of the `log_level` setting in the configuration file.
+
+The `log_level` setting only affects:
+- Console output (when running interactively)
+- File-based logging (when `log_path` is configured)
+
+## Accessing Internal Logs
+
+Internal logs can be accessed through the control server API endpoints. This functionality is intended for developers and support personnel who need to diagnose issues.
+
+## Notes
+
+- Internal logging is **not** a replacement for proper log file configuration in production environments
+- For production deployments, it is recommended to configure `log_path` to enable persistent file-based logging
+- Internal logs are stored in memory and will be lost if the process terminates unexpectedly
+- The internal logging system is automatically disabled when explicit logging is configured
+

doh.go

@@ -122,11 +122,6 @@ func (r *dohResolver) Resolve(ctx context.Context, msg *dns.Msg) (*dns.Msg, erro
 	}
 	if err != nil {
 		err = wrapUrlError(err)
-		if r.isDoH3 {
-			if closer, ok := c.Transport.(io.Closer); ok {
-				closer.Close()
-			}
-		}
 		return nil, fmt.Errorf("could not perform request: %w", err)
 	}
 	defer resp.Body.Close()

doq_test.go

@@ -142,7 +142,7 @@ func (s *testQUICServer) serve(t *testing.T) {
 }
 
 // handleConnection manages an individual QUIC connection by accepting and handling incoming streams in separate goroutines.
-func (s *testQUICServer) handleConnection(t *testing.T, conn quic.Connection) {
+func (s *testQUICServer) handleConnection(t *testing.T, conn *quic.Conn) {
 	for {
 		stream, err := conn.AcceptStream(context.Background())
 		if err != nil {
@@ -154,7 +154,7 @@ func (s *testQUICServer) handleConnection(t *testing.T, conn quic.Connection) {
 }
 
 // handleStream processes a single QUIC stream, reads DNS messages, generates a response, and sends it back to the client.
-func (s *testQUICServer) handleStream(t *testing.T, stream quic.Stream) {
+func (s *testQUICServer) handleStream(t *testing.T, stream *quic.Stream) {
 	defer stream.Close()
 
 	// Read length (2 bytes)

go.mod

@@ -1,12 +1,11 @@
 module github.com/Control-D-Inc/ctrld
 
-go 1.23.0
-
-toolchain go1.23.7
+go 1.24
 
 require (
 	github.com/Masterminds/semver/v3 v3.2.1
 	github.com/ameshkov/dnsstamps v1.0.3
+	github.com/brunogui0812/sysprofiler v0.5.0
 	github.com/coreos/go-systemd/v22 v22.5.0
 	github.com/cuonglm/osinfo v0.0.0-20230921071424-e0e1b1e0bbbf
 	github.com/docker/go-units v0.5.0
@@ -17,6 +16,7 @@ require (
 	github.com/hashicorp/golang-lru/v2 v2.0.1
 	github.com/illarion/gonotify/v2 v2.0.3
 	github.com/insomniacslk/dhcp v0.0.0-20231206064809-8c70d406f6d2
+	github.com/jaypipes/ghw v0.21.0
 	github.com/jaytaylor/go-hostsfile v0.0.0-20220426042432-61485ac1fa6c
 	github.com/josharian/native v1.1.1-0.20230202152459-5c7d0dd6ab86
 	github.com/kardianos/service v1.2.1
@@ -29,16 +29,16 @@ require (
 	github.com/prometheus/client_golang v1.19.1
 	github.com/prometheus/client_model v0.5.0
 	github.com/prometheus/prom2json v1.3.3
-	github.com/quic-go/quic-go v0.48.2
+	github.com/quic-go/quic-go v0.57.1
 	github.com/rs/zerolog v1.28.0
-	github.com/spf13/cobra v1.8.1
-	github.com/spf13/pflag v1.0.5
+	github.com/spf13/cobra v1.9.1
+	github.com/spf13/pflag v1.0.6
 	github.com/spf13/viper v1.16.0
-	github.com/stretchr/testify v1.9.0
+	github.com/stretchr/testify v1.11.1
 	github.com/vishvananda/netlink v1.2.1-beta.2
-	golang.org/x/net v0.38.0
-	golang.org/x/sync v0.12.0
-	golang.org/x/sys v0.31.0
+	golang.org/x/net v0.43.0
+	golang.org/x/sync v0.16.0
+	golang.org/x/sys v0.35.0
 	golang.zx2c4.com/wireguard/windows v0.5.3
 	tailscale.com v1.74.0
 )
@@ -54,13 +54,13 @@ require (
 	github.com/go-ole/go-ole v1.3.0 // indirect
 	github.com/go-playground/locales v0.14.0 // indirect
 	github.com/go-playground/universal-translator v0.18.0 // indirect
-	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
 	github.com/golang/protobuf v1.5.4 // indirect
 	github.com/google/go-cmp v0.6.0 // indirect
-	github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd // indirect
 	github.com/google/uuid v1.6.0 // indirect
+	github.com/groob/plist v0.0.0-20200425180238-0f631f258c01 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/jaypipes/pcidb v1.1.1 // indirect
 	github.com/jsimonetti/rtnetlink v1.4.0 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/kr/text v0.2.0 // indirect
@@ -74,32 +74,33 @@ require (
 	github.com/mdlayher/packet v1.1.2 // indirect
 	github.com/mdlayher/socket v0.5.0 // indirect
 	github.com/mitchellh/mapstructure v1.5.0 // indirect
-	github.com/onsi/ginkgo/v2 v2.9.5 // indirect
 	github.com/pierrec/lz4/v4 v4.1.21 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
 	github.com/prometheus/common v0.48.0 // indirect
 	github.com/prometheus/procfs v0.12.0 // indirect
-	github.com/quic-go/qpack v0.5.1 // indirect
+	github.com/quic-go/qpack v0.6.0 // indirect
 	github.com/rivo/uniseg v0.4.4 // indirect
 	github.com/rogpeppe/go-internal v1.11.0 // indirect
+	github.com/spakin/awk v1.0.0 // indirect
 	github.com/spf13/afero v1.9.5 // indirect
 	github.com/spf13/cast v1.6.0 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/subosito/gotenv v1.4.2 // indirect
 	github.com/u-root/uio v0.0.0-20240118234441-a3c409a6018e // indirect
 	github.com/vishvananda/netns v0.0.4 // indirect
-	go.uber.org/mock v0.4.0 // indirect
+	github.com/yusufpapurcu/wmi v1.2.4 // indirect
 	go4.org/mem v0.0.0-20220726221520-4f986261bf13 // indirect
 	go4.org/netipx v0.0.0-20231129151722-fdeea329fbba // indirect
-	golang.org/x/crypto v0.36.0 // indirect
+	golang.org/x/crypto v0.41.0 // indirect
 	golang.org/x/exp v0.0.0-20240506185415-9bf2ced13842 // indirect
-	golang.org/x/mod v0.19.0 // indirect
-	golang.org/x/text v0.23.0 // indirect
-	golang.org/x/tools v0.23.0 // indirect
+	golang.org/x/mod v0.27.0 // indirect
+	golang.org/x/text v0.28.0 // indirect
+	golang.org/x/tools v0.36.0 // indirect
 	google.golang.org/protobuf v1.33.0 // indirect
 	gopkg.in/ini.v1 v1.67.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
+	howett.net/plist v1.0.2-0.20250314012144-ee69052608d9 // indirect
 )
 
 replace github.com/mr-karan/doggo => github.com/Windscribe/doggo v0.0.0-20220919152748-2c118fc391f8

go.sum

@@ -50,6 +50,8 @@ github.com/ameshkov/dnsstamps v1.0.3 h1:Srzik+J9mivH1alRACTbys2xOxs0lRH9qnTA7Y1O
 github.com/ameshkov/dnsstamps v1.0.3/go.mod h1:Ii3eUu73dx4Vw5O4wjzmT5+lkCwovjzaEZZ4gKyIH5A=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
+github.com/brunogui0812/sysprofiler v0.5.0 h1:AUekplOKG/VKH6sPSBRxsKOA9Uv5OsI8qolXM73dXPU=
+github.com/brunogui0812/sysprofiler v0.5.0/go.mod h1:lLd7gvylgd4nsTSC8exq1YY6qhLWXkgnalxjVzdlbEM=
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
@@ -64,7 +66,7 @@ github.com/cncf/udpa/go v0.0.0-20200629203442-efcf912fb354/go.mod h1:WmhPx2Nbnht
 github.com/cncf/udpa/go v0.0.0-20201120205902-5459f2c99403/go.mod h1:WmhPx2Nbnhtbo57+VJT5O0JRkEi1Wbu0z5j0R8u5Hbk=
 github.com/coreos/go-systemd/v22 v22.5.0 h1:RrqgGjYQKalulkV8NGVIfkXQf6YYmOyiJKk8iXXhfZs=
 github.com/coreos/go-systemd/v22 v22.5.0/go.mod h1:Y58oyj3AT4RCenI/lSvhwexgC+NSVTIJ3seZv2GcEnc=
-github.com/cpuguy83/go-md2man/v2 v2.0.4/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/cpuguy83/go-md2man/v2 v2.0.6/go.mod h1:oOW0eioCTA6cOiMLiUPZOpcVxMig6NIQQ7OS05n1F4g=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/cuonglm/osinfo v0.0.0-20230921071424-e0e1b1e0bbbf h1:40DHYsri+d1bnroFDU2FQAeq68f3kAlOzlQ93kCf26Q=
 github.com/cuonglm/osinfo v0.0.0-20230921071424-e0e1b1e0bbbf/go.mod h1:G45410zMgmnSjLVKCq4f6GpbYAzoP2plX9rPwgx6C24=
@@ -91,8 +93,7 @@ github.com/go-gl/glfw/v3.3/glfw v0.0.0-20191125211704-12ad95a8df72/go.mod h1:tQ2
 github.com/go-gl/glfw/v3.3/glfw v0.0.0-20200222043503-6f7a984d4dc4/go.mod h1:tQ2UAYgL5IevRw8kRxooKSPJfGvJ9fJQFa0TUsXzTg8=
 github.com/go-json-experiment/json v0.0.0-20231102232822-2e55bd4e08b0 h1:ymLjT4f35nQbASLnvxEde4XOBL+Sn7rFuV+FOJqkljg=
 github.com/go-json-experiment/json v0.0.0-20231102232822-2e55bd4e08b0/go.mod h1:6daplAwHHGbUGib4990V3Il26O0OC4aRyvewaaAihaA=
-github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
-github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/go-ole/go-ole v1.3.0 h1:Dt6ye7+vXGIKZ7Xtk4s6/xVdGDQynvom7xCFEdWr6uE=
 github.com/go-ole/go-ole v1.3.0/go.mod h1:5LS6F96DhAwUc7C+1HLexzMXY1xGRSryjyPPKW6zv78=
 github.com/go-playground/assert/v2 v2.0.1 h1:MsBgLAaY856+nPRTKrp3/OZK38U/wa0CcBYNjji3q3A=
@@ -103,8 +104,6 @@ github.com/go-playground/universal-translator v0.18.0 h1:82dyy6p4OuJq4/CByFNOn/j
 github.com/go-playground/universal-translator v0.18.0/go.mod h1:UvRDBj+xPUEGrFYl+lu/H90nyDXpg0fqeB/AQUGNTVA=
 github.com/go-playground/validator/v10 v10.11.1 h1:prmOlTVv+YjZjmRmNSF3VmspqJIxJWXmqUsHwfTRRkQ=
 github.com/go-playground/validator/v10 v10.11.1/go.mod h1:i+3WkQ1FvaUjjxh1kSvIA4dMGDBiPU55YFDl0WbKdWU=
-github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
-github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
 github.com/godbus/dbus/v5 v5.0.4/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/godbus/dbus/v5 v5.1.1-0.20230522191255-76236955d466 h1:sQspH8M4niEijh3PFscJRLDnkL547IeP7kpPe3uUhEg=
 github.com/godbus/dbus/v5 v5.1.1-0.20230522191255-76236955d466/go.mod h1:ZiQxhyQ+bbbfxUKVvjfO498oPYvtYhZzycal3G/NHmU=
@@ -162,8 +161,6 @@ github.com/google/pprof v0.0.0-20200708004538-1a94d8640e99/go.mod h1:ZgVRPoUq/hf
 github.com/google/pprof v0.0.0-20201023163331-3e6fc7fc9c4c/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20201203190320-1bf35d6f28c2/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
 github.com/google/pprof v0.0.0-20201218002935-b9804c9f04c2/go.mod h1:kpwsk12EmLew5upagYY7GY0pfYCcupk39gWOCRROcvE=
-github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd h1:gbpYu9NMq8jhDVbvlGkMFWCjLFlqqEZjEmObmhUy6Vo=
-github.com/google/pprof v0.0.0-20240409012703-83162a5b38cd/go.mod h1:kf6iHlnVGwgKolg33glAes7Yg/8iWP8ukqeldJSO7jw=
 github.com/google/renameio v0.1.0/go.mod h1:KWCgfxg9yswjAJkECMjeO8J8rahYeXnNhOm40UhjYkI=
 github.com/google/uuid v1.1.2/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
@@ -171,6 +168,8 @@ github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+
 github.com/googleapis/gax-go/v2 v2.0.4/go.mod h1:0Wqv26UfaUD9n4G6kQubkQ+KchISgw+vpHVxEJEs9eg=
 github.com/googleapis/gax-go/v2 v2.0.5/go.mod h1:DWXyrwAJ9X0FpwwEdw+IPEYBICEFu5mhpdKc/us6bOk=
 github.com/googleapis/google-cloud-go-testing v0.0.0-20200911160855-bcd43fbb19e8/go.mod h1:dvDLG8qkwmyD9a/MJJN3XJcT3xFxOKAvTZGvuZmac9g=
+github.com/groob/plist v0.0.0-20200425180238-0f631f258c01 h1:0T3XGXebqLj7zSVLng9wX9axQzTEnvj/h6eT7iLfUas=
+github.com/groob/plist v0.0.0-20200425180238-0f631f258c01/go.mod h1:itkABA+w2cw7x5nYUS/pLRef6ludkZKOigbROmCTaFw=
 github.com/hashicorp/golang-lru v0.5.0/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru v0.5.1/go.mod h1:/m3WP610KZHVQ1SGc6re/UDhFvYD7pJ4Ao+sR/qLZy8=
 github.com/hashicorp/golang-lru/v2 v2.0.1 h1:5pv5N1lT1fjLg2VQ5KWc7kmucp2x/kvFOnxuVTqZ6x4=
@@ -187,8 +186,13 @@ github.com/inconshreveable/mousetrap v1.1.0 h1:wN+x4NVGpMsO7ErUn/mUI3vEoE6Jt13X2
 github.com/inconshreveable/mousetrap v1.1.0/go.mod h1:vpF70FUmC8bwa3OWnCshd2FqLfsEA9PFc4w1p2J65bw=
 github.com/insomniacslk/dhcp v0.0.0-20231206064809-8c70d406f6d2 h1:9K06NfxkBh25x56yVhWWlKFE8YpicaSfHwoV8SFbueA=
 github.com/insomniacslk/dhcp v0.0.0-20231206064809-8c70d406f6d2/go.mod h1:3A9PQ1cunSDF/1rbTq99Ts4pVnycWg+vlPkfeD2NLFI=
+github.com/jaypipes/ghw v0.21.0 h1:ClG2xWtYY0c1ud9jZYwVGdSgfCI7AbmZmZyw3S5HHz8=
+github.com/jaypipes/ghw v0.21.0/go.mod h1:GPrvwbtPoxYUenr74+nAnWbardIZq600vJDD5HnPsPE=
+github.com/jaypipes/pcidb v1.1.1 h1:QmPhpsbmmnCwZmHeYAATxEaoRuiMAJusKYkUncMC0ro=
+github.com/jaypipes/pcidb v1.1.1/go.mod h1:x27LT2krrUgjf875KxQXKB0Ha/YXLdZRVmw6hH0G7g8=
 github.com/jaytaylor/go-hostsfile v0.0.0-20220426042432-61485ac1fa6c h1:kbTQ8oGf+BVFvt/fM+ECI+NbZDCqoi0vtZTfB2p2hrI=
 github.com/jaytaylor/go-hostsfile v0.0.0-20220426042432-61485ac1fa6c/go.mod h1:k6+89xKz7BSMJ+DzIerBdtpEUeTlBMugO/hcVSzahog=
+github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
 github.com/josharian/native v1.0.1-0.20221213033349-c1e37c09b531/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
 github.com/josharian/native v1.1.1-0.20230202152459-5c7d0dd6ab86 h1:elKwZS1OcdQ0WwEDBeqxKwb7WB62QX8bvZ/FJnVXIfk=
 github.com/josharian/native v1.1.1-0.20230202152459-5c7d0dd6ab86/go.mod h1:aFAMtuldEgx/4q7iSGazk22+IcgvtiC+HIimFO9XlS8=
@@ -242,10 +246,6 @@ github.com/mitchellh/mapstructure v1.5.0 h1:jeMsZIYE/09sWLaz43PL7Gy6RuMjD2eJVyua
 github.com/mitchellh/mapstructure v1.5.0/go.mod h1:bFUtVrKA4DC2yAKiSyO/QUcy7e+RRV2QTWOzhPopBRo=
 github.com/olekukonko/tablewriter v0.0.5 h1:P2Ga83D34wi1o9J6Wh1mRuqd4mF/x/lgBS7N7AbDhec=
 github.com/olekukonko/tablewriter v0.0.5/go.mod h1:hPp6KlRPjbx+hW8ykQs1w3UBbZlj6HuIJcUGPhkA7kY=
-github.com/onsi/ginkgo/v2 v2.9.5 h1:+6Hr4uxzP4XIUyAkg61dWBw8lb/gc4/X5luuxN/EC+Q=
-github.com/onsi/ginkgo/v2 v2.9.5/go.mod h1:tvAoo1QUJwNEU2ITftXTpR7R1RbCzoZUOs3RonqW57k=
-github.com/onsi/gomega v1.27.6 h1:ENqfyGeS5AX/rlXDd/ETokDz93u0YufY1Pgxuy/PvWE=
-github.com/onsi/gomega v1.27.6/go.mod h1:PIQNjfQwkP3aQAH7lf7j87O/5FiNr+ZR8+ipb+qQlhg=
 github.com/pelletier/go-toml/v2 v2.0.8 h1:0ctb6s9mE31h0/lhu+J6OPmVeDxJn+kYnJc2jZR9tGQ=
 github.com/pelletier/go-toml/v2 v2.0.8/go.mod h1:vuYfssBdrU2XDZ9bYydBu6t+6a6PYNcZljzZR9VXg+4=
 github.com/pierrec/lz4/v4 v4.1.14/go.mod h1:gZWDp/Ze/IJXGXf23ltt2EXimqmTUXEy0GFuRQyBid4=
@@ -269,10 +269,10 @@ github.com/prometheus/procfs v0.12.0 h1:jluTpSng7V9hY0O2R9DzzJHYb2xULk9VTR1V1R/k
 github.com/prometheus/procfs v0.12.0/go.mod h1:pcuDEFsWDnvcgNzo4EEweacyhjeA9Zk3cnaOZAZEfOo=
 github.com/prometheus/prom2json v1.3.3 h1:IYfSMiZ7sSOfliBoo89PcufjWO4eAR0gznGcETyaUgo=
 github.com/prometheus/prom2json v1.3.3/go.mod h1:Pv4yIPktEkK7btWsrUTWDDDrnpUrAELaOCj+oFwlgmc=
-github.com/quic-go/qpack v0.5.1 h1:giqksBPnT/HDtZ6VhtFKgoLOWmlyo9Ei6u9PqzIMbhI=
-github.com/quic-go/qpack v0.5.1/go.mod h1:+PC4XFrEskIVkcLzpEkbLqq1uCoxPhQuvK5rH1ZgaEg=
-github.com/quic-go/quic-go v0.48.2 h1:wsKXZPeGWpMpCGSWqOcqpW2wZYic/8T3aqiOID0/KWE=
-github.com/quic-go/quic-go v0.48.2/go.mod h1:yBgs3rWBOADpga7F+jJsb6Ybg1LSYiQvwWlLX+/6HMs=
+github.com/quic-go/qpack v0.6.0 h1:g7W+BMYynC1LbYLSqRt8PBg5Tgwxn214ZZR34VIOjz8=
+github.com/quic-go/qpack v0.6.0/go.mod h1:lUpLKChi8njB4ty2bFLX2x4gzDqXwUpaO1DP9qMDZII=
+github.com/quic-go/quic-go v0.57.1 h1:25KAAR9QR8KZrCZRThWMKVAwGoiHIrNbT72ULHTuI10=
+github.com/quic-go/quic-go v0.57.1/go.mod h1:ly4QBAjHA2VhdnxhojRsCUOeJwKYg+taDlos92xb1+s=
 github.com/rivo/uniseg v0.2.0/go.mod h1:J6wj4VEh+S6ZtnVlnTBMWIodfgj8LQOQFoIToxlJtxc=
 github.com/rivo/uniseg v0.4.4 h1:8TfxU8dW6PdqD27gjM8MVNuicgxIjxpm4K7x4jp8sis=
 github.com/rivo/uniseg v0.4.4/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
@@ -284,16 +284,18 @@ github.com/rogpeppe/go-internal v1.11.0 h1:cWPaGQEPrBb5/AsnsZesgZZ9yb1OQ+GOISoDN
 github.com/rogpeppe/go-internal v1.11.0/go.mod h1:ddIwULY96R17DhadqLgMfk9H9tvdUzkipdSkR5nkCZA=
 github.com/rs/xid v1.6.0/go.mod h1:7XoLgs4eV+QndskICGsho+ADou8ySMSjJKDIan90Nz0=
 github.com/russross/blackfriday/v2 v2.1.0/go.mod h1:+Rmxgy9KzJVeS9/2gXHxylqXiyQDYRxCVz55jmeOWTM=
+github.com/spakin/awk v1.0.0 h1:5ulBVgJhdN3XoFGNVv/MOHOIUfPVPvMCIlLH6O6ZqU4=
+github.com/spakin/awk v1.0.0/go.mod h1:e7FnxcIEcRqdKwStPYWonox4n9DpharWk+3nnn1IqJs=
 github.com/spf13/afero v1.9.5 h1:stMpOSZFs//0Lv29HduCmli3GUfpFoF3Y1Q/aXj/wVM=
 github.com/spf13/afero v1.9.5/go.mod h1:UBogFpq8E9Hx+xc5CNTTEpTnuHVmXDwZcZcE1eb/UhQ=
 github.com/spf13/cast v1.6.0 h1:GEiTHELF+vaR5dhz3VqZfFSzZjYbgeKDpBxQVS4GYJ0=
 github.com/spf13/cast v1.6.0/go.mod h1:ancEpBxwJDODSW/UG4rDrAqiKolqNNh2DX3mk86cAdo=
-github.com/spf13/cobra v1.8.1 h1:e5/vxKd/rZsfSJMUX1agtjeTDf+qv1/JdBF8gg5k9ZM=
-github.com/spf13/cobra v1.8.1/go.mod h1:wHxEcudfqmLYa8iTfL+OuZPbBZkmvliBWKIezN3kD9Y=
+github.com/spf13/cobra v1.9.1 h1:CXSaggrXdbHK9CF+8ywj8Amf7PBRmPCOJugH954Nnlo=
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 github.com/spf13/jwalterweatherman v1.1.0 h1:ue6voC5bR5F8YxI5S67j9i582FU4Qvo2bmqnqMYADFk=
 github.com/spf13/jwalterweatherman v1.1.0/go.mod h1:aNWZUN0dPAAO/Ljvb5BEdw96iTZ0EXowPYD95IqWIGo=
-github.com/spf13/pflag v1.0.5 h1:iy+VFUOCP1a+8yFto/drg2CJ5u0yRoB7fZw3DKv/JXA=
-github.com/spf13/pflag v1.0.5/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
+github.com/spf13/pflag v1.0.6 h1:jFzHGLGAlb3ruxLB8MhbI6A8+AQX/2eW4qeyNZXNp2o=
+github.com/spf13/pflag v1.0.6/go.mod h1:McXfInJRrz4CZXVZOBLb0bTZqETkiAhM9Iw0y3An2Bg=
 github.com/spf13/viper v1.16.0 h1:rGGH0XDZhdUOryiDWjmIvUSWpbNqisK8Wk0Vyefw8hc=
 github.com/spf13/viper v1.16.0/go.mod h1:yg78JgCJcbrQOvV9YLXgkLaZqUidkY9K+Dd1FofRzQg=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
@@ -309,8 +311,8 @@ github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/
 github.com/stretchr/testify v1.7.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
 github.com/stretchr/testify v1.8.0/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/stretchr/testify v1.8.3/go.mod h1:sz/lmYIOXD/1dqDmKjjqLyZ2RngseejIcXlSw2iwfAo=
-github.com/stretchr/testify v1.9.0 h1:HtqpIVDClZ4nwg75+f6Lvsy/wHu+3BoSGCbBAcpTsTg=
-github.com/stretchr/testify v1.9.0/go.mod h1:r2ic/lqez/lEtzL7wO/rwa5dbSLXVDPFyf8C91i36aY=
+github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
+github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/subosito/gotenv v1.4.2 h1:X1TuBLAMDFbaTAChgCBLu3DU3UPyELpnF2jjJ2cz/S8=
 github.com/subosito/gotenv v1.4.2/go.mod h1:ayKnFf/c6rvx/2iiLrJUk1e6plDbT3edrFNGqEflhK0=
 github.com/u-root/uio v0.0.0-20240118234441-a3c409a6018e h1:BA9O3BmlTmpjbvajAwzWx4Wo2TRVdpPXZEeemGQcajw=
@@ -324,14 +326,16 @@ github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9de
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.32/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
+github.com/yusufpapurcu/wmi v1.2.4 h1:zFUKzehAFReQwLys1b/iSMl+JQGSCSjtVqQn9bBrPo0=
+github.com/yusufpapurcu/wmi v1.2.4/go.mod h1:SBZ9tNy3G9/m5Oi98Zks0QjeHVDvuK0qfxQmPyzfmi0=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.5/go.mod h1:5pWMHQbX5EPX2/62yrJeAkowc+lfs/XD7Uxpq3pI6kk=
-go.uber.org/mock v0.4.0 h1:VcM4ZOtdbR4f6VXfiOpwpVJDL6lCReaZ6mw31wqh7KU=
-go.uber.org/mock v0.4.0/go.mod h1:a6FSlNadKUHUa9IP5Vyt1zh4fC7uAwxMutEAscFbkZc=
+go.uber.org/mock v0.5.2 h1:LbtPTcP8A5k9WPXj54PPPbjcI4Y6lhyOZXn+VS7wNko=
+go.uber.org/mock v0.5.2/go.mod h1:wLlUxC2vVTPTaE3UD51E0BGOAElKrILxhVSDYQLld5o=
 go4.org/mem v0.0.0-20220726221520-4f986261bf13 h1:CbZeCBZ0aZj8EfVgnqQcYZgf0lpZ3H9rmp5nkDTAst8=
 go4.org/mem v0.0.0-20220726221520-4f986261bf13/go.mod h1:reUoABIJ9ikfM5sgtSF3Wushcza7+WeD01VB9Lirh3g=
 go4.org/netipx v0.0.0-20231129151722-fdeea329fbba h1:0b9z3AuHCjxk0x/opv64kcgZLBseWJUpBw5I82+2U4M=
@@ -346,8 +350,8 @@ golang.org/x/crypto v0.0.0-20210421170649-83a5a9bb288b/go.mod h1:T9bdIzuCu7OtxOm
 golang.org/x/crypto v0.0.0-20211209193657-4570a0811e8b/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20211215153901-e495a2d5b3d3/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
 golang.org/x/crypto v0.0.0-20220722155217-630584e8d5aa/go.mod h1:IxCIyHEi3zRg3s0A5j5BB6A9Jmi73HwBIUl50j+osU4=
-golang.org/x/crypto v0.36.0 h1:AnAEvhDddvBdpY+uR+MyHmuZzzNqXSe/GvuDeob5L34=
-golang.org/x/crypto v0.36.0/go.mod h1:Y4J0ReaxCR1IMaabaSMugxJES1EpwhBHhv2bDHklZvc=
+golang.org/x/crypto v0.41.0 h1:WKYxWedPGCTVVl5+WHSSrOBT0O8lx32+zxmHxijgXp4=
+golang.org/x/crypto v0.41.0/go.mod h1:pO5AFd7FA68rFak7rOAGVuygIISepHftHnr8dr6+sUc=
 golang.org/x/exp v0.0.0-20190121172915-509febef88a4/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190306152737-a1d7652674e8/go.mod h1:CJ0aWSM057203Lf6IL+f9T1iT9GByDxfZKAQTCR3kQA=
 golang.org/x/exp v0.0.0-20190510132918-efd6b22b2522/go.mod h1:ZjyILWgesfNpC6sMxTJOJm9Kp84zZh5NQWvqDGG3Qr8=
@@ -383,8 +387,8 @@ golang.org/x/mod v0.2.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.1/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
-golang.org/x/mod v0.19.0 h1:fEdghXQSo20giMthA7cd28ZC+jts4amQ3YMXiP5oMQ8=
-golang.org/x/mod v0.19.0/go.mod h1:hTbmBsO62+eylJbnUtE2MGJUyE7QWk4xUqPFrRgJ+7c=
+golang.org/x/mod v0.27.0 h1:kb+q2PyFnEADO2IEF935ehFUXlWiNjJWtRNgBLSfbxQ=
+golang.org/x/mod v0.27.0/go.mod h1:rWI627Fq0DEoudcK+MBkNkCe0EetEaDSwJJkCcjpazc=
 golang.org/x/net v0.0.0-20180724234803-3673e40ba225/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20180826012351-8a410e7b638d/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
 golang.org/x/net v0.0.0-20190108225652-1e06a53dbb7e/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
@@ -417,8 +421,8 @@ golang.org/x/net v0.0.0-20201209123823-ac852fbbde11/go.mod h1:m0MpNAwzfU5UDzcl9v
 golang.org/x/net v0.0.0-20201224014010-6772e930b67b/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20210226172049-e18ecbb05110/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
 golang.org/x/net v0.0.0-20211112202133-69e39bad7dc2/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
-golang.org/x/net v0.38.0 h1:vRMAPTMaeGqVhG5QyLJHqNDwecKTomGeqbnfZyKlBI8=
-golang.org/x/net v0.38.0/go.mod h1:ivrbrMbzFq5J41QOQh0siUuly180yBYtLp+CKbEaFx8=
+golang.org/x/net v0.43.0 h1:lat02VYK2j4aLzMzecihNvTlJNQUq316m2Mr9rnM6YE=
+golang.org/x/net v0.43.0/go.mod h1:vhO1fvI4dGsIjh73sWfUVjj3N7CA9WkKJNQm2svM6Jg=
 golang.org/x/oauth2 v0.0.0-20180821212333-d2e6202438be/go.mod h1:N/0e6XlmueqKjAGxoOufVs8QHGRruUQn6yWY3a++T0U=
 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
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@@ -438,8 +442,8 @@ golang.org/x/sync v0.0.0-20200317015054-43a5402ce75a/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20200625203802-6e8e738ad208/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201020160332-67f06af15bc9/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20201207232520-09787c993a3a/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.12.0 h1:MHc5BpPuC30uJk597Ri8TV3CNZcTLu6B6z4lJy+g6Jw=
-golang.org/x/sync v0.12.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
+golang.org/x/sync v0.16.0 h1:ycBJEhp9p4vXvUZNszeOq0kGTPghopOL8q0fq3vstxw=
+golang.org/x/sync v0.16.0/go.mod h1:1dzgHSNfp02xaA81J2MS99Qcpr2w7fw1gpm99rleRqA=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@@ -449,6 +453,7 @@ golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20191001151750-bb3f8db39f24/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@@ -488,8 +493,8 @@ golang.org/x/sys v0.1.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.4.1-0.20230131160137-e7d7f63158de/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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 golang.org/x/sys v0.12.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.31.0 h1:ioabZlmFYtWhL+TRYpcnNlLwhyxaM9kWTDEmfnprqik=
-golang.org/x/sys v0.31.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
+golang.org/x/sys v0.35.0 h1:vz1N37gP5bs89s7He8XuIYXpyY0+QlsKmzipCbUtyxI=
+golang.org/x/sys v0.35.0/go.mod h1:BJP2sWEmIv4KK5OTEluFJCKSidICx8ciO85XgH3Ak8k=
 golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
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@@ -500,13 +505,13 @@ golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
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 golang.org/x/text v0.3.7/go.mod h1:u+2+/6zg+i71rQMx5EYifcz6MCKuco9NR6JIITiCfzQ=
-golang.org/x/text v0.23.0 h1:D71I7dUrlY+VX0gQShAThNGHFxZ13dGLBHQLVl1mJlY=
-golang.org/x/text v0.23.0/go.mod h1:/BLNzu4aZCJ1+kcD0DNRotWKage4q2rGVAg4o22unh4=
+golang.org/x/text v0.28.0 h1:rhazDwis8INMIwQ4tpjLDzUhx6RlXqZNPEM0huQojng=
+golang.org/x/text v0.28.0/go.mod h1:U8nCwOR8jO/marOQ0QbDiOngZVEBB7MAiitBuMjXiNU=
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-golang.org/x/time v0.5.0 h1:o7cqy6amK/52YcAKIPlM3a+Fpj35zvRj2TP+e1xFSfk=
-golang.org/x/time v0.5.0/go.mod h1:3BpzKBy/shNhVucY/MWOyx10tF3SFh9QdLuxbVysPQM=
+golang.org/x/time v0.12.0 h1:ScB/8o8olJvc+CQPWrK3fPZNfh7qgwCrY0zJmoEQLSE=
+golang.org/x/time v0.12.0/go.mod h1:CDIdPxbZBQxdj6cxyCIdrNogrJKMJ7pr37NYpMcMDSg=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190114222345-bf090417da8b/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190226205152-f727befe758c/go.mod h1:9Yl7xja0Znq3iFh3HoIrodX9oNMXvdceNzlUR8zjMvY=
@@ -554,8 +559,8 @@ golang.org/x/tools v0.0.0-20201208233053-a543418bbed2/go.mod h1:emZCQorbCU4vsT4f
 golang.org/x/tools v0.0.0-20210105154028-b0ab187a4818/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.0.0-20210108195828-e2f9c7f1fc8e/go.mod h1:emZCQorbCU4vsT4fOWvOPXz4eW1wZW4PmDk9uLelYpA=
 golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
-golang.org/x/tools v0.23.0 h1:SGsXPZ+2l4JsgaCKkx+FQ9YZ5XEtA1GZYuoDjenLjvg=
-golang.org/x/tools v0.23.0/go.mod h1:pnu6ufv6vQkll6szChhK3C3L/ruaIv5eBeztNG8wtsI=
+golang.org/x/tools v0.36.0 h1:kWS0uv/zsvHEle1LbV5LE8QujrxB3wfQyxHfhOk0Qkg=
+golang.org/x/tools v0.36.0/go.mod h1:WBDiHKJK8YgLHlcQPYQzNCkUxUypCaa5ZegCVutKm+s=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
@@ -671,6 +676,8 @@ honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWh
 honnef.co/go/tools v0.0.1-2019.2.3/go.mod h1:a3bituU0lyd329TUQxRnasdCoJDkEUEAqEt0JzvZhAg=
 honnef.co/go/tools v0.0.1-2020.1.3/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
 honnef.co/go/tools v0.0.1-2020.1.4/go.mod h1:X/FiERA/W4tHapMX5mGpAtMSVEeEUOyHaw9vFzvIQ3k=
+howett.net/plist v1.0.2-0.20250314012144-ee69052608d9 h1:eeH1AIcPvSc0Z25ThsYF+Xoqbn0CI/YnXVYoTLFdGQw=
+howett.net/plist v1.0.2-0.20250314012144-ee69052608d9/go.mod h1:fyFX5Hj5tP1Mpk8obqA9MZgXT416Q5711SDT7dQLTLk=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

internal/clientinfo/dhcp_lease_files.go

@@ -16,4 +16,5 @@ var clientInfoFiles = map[string]ctrld.LeaseFileFormat{
 	"/var/dhcpd/var/db/dhcpd.leases":           ctrld.IscDhcpd, // Pfsense
 	"/home/pi/.router/run/dhcp/dnsmasq.leases": ctrld.Dnsmasq,  // Firewalla
 	"/var/lib/kea/dhcp4.leases":                ctrld.KeaDHCP4, // Pfsense
+	"/var/db/dnsmasq.leases":                   ctrld.Dnsmasq,  // OPNsense
 }

internal/clientinfo/mdns.go

@@ -74,7 +74,6 @@ func (m *mdns) lookupIPByHostname(name string, v6 bool) string {
 		if value == name {
 			if addr, err := netip.ParseAddr(key.(string)); err == nil && addr.Is6() == v6 {
 				ip = addr.String()
-				//lint:ignore S1008 This is used for readable.
 				if addr.IsLoopback() { // Continue searching if this is loopback address.
 					return true
 				}

internal/clientinfo/ptr_lookup.go

@@ -104,7 +104,6 @@ func (p *ptrDiscover) lookupIPByHostname(name string, v6 bool) string {
 		if value == name {
 			if addr, err := netip.ParseAddr(key.(string)); err == nil && addr.Is6() == v6 {
 				ip = addr.String()
-				//lint:ignore S1008 This is used for readable.
 				if addr.IsLoopback() { // Continue searching if this is loopback address.
 					return true
 				}
@@ -120,8 +119,7 @@ func (p *ptrDiscover) lookupIPByHostname(name string, v6 bool) string {
 // is reachable, set p.serverDown to false, so p.lookupHostname can continue working.
 func (p *ptrDiscover) checkServer() {
 	bo := backoff.NewBackoff("ptrDiscover", func(format string, args ...any) {}, time.Minute*5)
-	m := new(dns.Msg)
-	m.SetQuestion(".", dns.TypeNS)
+	m := (&ctrld.UpstreamConfig{}).VerifyMsg()
 	ping := func() error {
 		ctx, cancel := context.WithTimeout(context.Background(), time.Second)
 		defer cancel()

internal/controld/config.go

@@ -71,14 +71,23 @@ func (u ErrorResponse) Error() string {
 }
 
 type utilityRequest struct {
-	UID      string `json:"uid"`
-	ClientID string `json:"client_id,omitempty"`
+	UID      string            `json:"uid"`
+	ClientID string            `json:"client_id,omitempty"`
+	Metadata map[string]string `json:"metadata"`
 }
 
 // UtilityOrgRequest contains request data for calling Org API.
 type UtilityOrgRequest struct {
-	ProvToken string `json:"prov_token"`
-	Hostname  string `json:"hostname"`
+	ProvToken string            `json:"prov_token"`
+	Hostname  string            `json:"hostname"`
+	Metadata  map[string]string `json:"metadata"`
+}
+
+// ResolverConfigRequest contains request data for fetching resolver config.
+type ResolverConfigRequest struct {
+	RawUID   string
+	Version  string
+	Metadata map[string]string
 }
 
 // LogsRequest contains request data for sending runtime logs to API.
@@ -88,26 +97,30 @@ type LogsRequest struct {
 }
 
 // FetchResolverConfig fetch Control D config for given uid.
-func FetchResolverConfig(rawUID, version string, cdDev bool) (*ResolverConfig, error) {
-	uid, clientID := ParseRawUID(rawUID)
-	req := utilityRequest{UID: uid}
-	if clientID != "" {
-		req.ClientID = clientID
+func FetchResolverConfig(req *ResolverConfigRequest, cdDev bool) (*ResolverConfig, error) {
+	uid, clientID := ParseRawUID(req.RawUID)
+	uReq := utilityRequest{
+		UID:      uid,
+		Metadata: req.Metadata,
 	}
-	body, _ := json.Marshal(req)
-	return postUtilityAPI(version, cdDev, false, bytes.NewReader(body))
+	if clientID != "" {
+		uReq.ClientID = clientID
+	}
+	body, _ := json.Marshal(uReq)
+	return postUtilityAPI(req.Version, cdDev, false, bytes.NewReader(body))
 }
 
-// FetchResolverUID fetch resolver uid from provision token.
+// FetchResolverUID fetch resolver uid from a given request.
 func FetchResolverUID(req *UtilityOrgRequest, version string, cdDev bool) (*ResolverConfig, error) {
 	if req == nil {
 		return nil, errors.New("invalid request")
 	}
-	hostname := req.Hostname
-	if hostname == "" {
-		hostname, _ = os.Hostname()
+	if req.Hostname == "" {
+		hostname, _ := os.Hostname()
+		req.Hostname = hostname
 	}
-	body, _ := json.Marshal(UtilityOrgRequest{ProvToken: req.ProvToken, Hostname: hostname})
+
+	body, _ := json.Marshal(req)
 	return postUtilityAPI(version, cdDev, false, bytes.NewReader(body))
 }
 

internal/controld/controld_test.go

@@ -3,10 +3,13 @@
 package controld
 
 import (
+	"context"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
+
+	"github.com/Control-D-Inc/ctrld"
 )
 
 func TestFetchResolverConfig(t *testing.T) {
@@ -20,11 +23,18 @@ func TestFetchResolverConfig(t *testing.T) {
 		{"valid dev", "p2", true, false},
 		{"invalid uid", "abcd1234", false, true},
 	}
+
+	ctx := context.Background()
 	for _, tc := range tests {
 		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()
-			got, err := FetchResolverConfig(tc.uid, "dev-test", tc.dev)
+			req := &ResolverConfigRequest{
+				RawUID:   tc.uid,
+				Version:  "dev-test",
+				Metadata: ctrld.SystemMetadata(ctx),
+			}
+			got, err := FetchResolverConfig(ctx, req, tc.dev)
 			require.False(t, (err != nil) != tc.wantErr, err)
 			if !tc.wantErr {
 				assert.NotEmpty(t, got.DOH)

internal/system/chassis_darwin.go

@@ -0,0 +1,25 @@
+package system
+
+import (
+	"errors"
+	"fmt"
+
+	"github.com/brunogui0812/sysprofiler"
+)
+
+// GetChassisInfo retrieves hardware information including machine model type and vendor from the system profiler.
+func GetChassisInfo() (*ChassisInfo, error) {
+	hardwares, err := sysprofiler.Hardware()
+	if err != nil {
+		return nil, fmt.Errorf("failed to get hardware info: %w", err)
+	}
+	if len(hardwares) == 0 {
+		return nil, errors.New("no hardware info found")
+	}
+	hardware := hardwares[0]
+	info := &ChassisInfo{
+		Type:   hardware.MachineModel,
+		Vendor: "Apple Inc.",
+	}
+	return info, nil
+}

internal/system/chassis_others.go

@@ -0,0 +1,20 @@
+//go:build !darwin
+
+package system
+
+import "github.com/jaypipes/ghw"
+
+// GetChassisInfo retrieves hardware information including machine model type and vendor from the system profiler.
+func GetChassisInfo() (*ChassisInfo, error) {
+	// Disable warnings from ghw, since these are undesirable but recoverable errors.
+	// With warnings enabled, ghw will emit unnecessary log messages.
+	chassis, err := ghw.Chassis(ghw.WithDisableWarnings())
+	if err != nil {
+		return nil, err
+	}
+	info := &ChassisInfo{
+		Type:   chassis.TypeDescription,
+		Vendor: chassis.Vendor,
+	}
+	return info, nil
+}

internal/system/metadata.go

@@ -0,0 +1,7 @@
+package system
+
+// ChassisInfo represents the structural framework of a device, specifying its type and manufacturer information.
+type ChassisInfo struct {
+	Type   string
+	Vendor string
+}

internal/system/metadata_others.go

@@ -0,0 +1,8 @@
+//go:build !windows
+
+package system
+
+// GetActiveDirectoryDomain returns AD domain name of this computer.
+func GetActiveDirectoryDomain() (string, error) {
+	return "", nil
+}

internal/system/metadata_windows.go

@@ -0,0 +1,74 @@
+package system
+
+import (
+	"errors"
+	"fmt"
+	"io"
+	"log"
+	"os"
+	"strings"
+	"unsafe"
+
+	"github.com/microsoft/wmi/pkg/base/host"
+	hh "github.com/microsoft/wmi/pkg/hardware/host"
+	"golang.org/x/sys/windows"
+)
+
+// GetActiveDirectoryDomain returns AD domain name of this computer.
+func GetActiveDirectoryDomain() (string, error) {
+	log.SetOutput(io.Discard)
+	defer log.SetOutput(os.Stderr)
+
+	// 1) Check environment variable
+	envDomain := os.Getenv("USERDNSDOMAIN")
+	if envDomain != "" {
+		return strings.TrimSpace(envDomain), nil
+	}
+
+	// 2) Query WMI via the microsoft/wmi library
+	whost := host.NewWmiLocalHost()
+	cs, err := hh.GetComputerSystem(whost)
+	if cs != nil {
+		defer cs.Close()
+	}
+	if err != nil {
+		return "", err
+	}
+	pod, err := cs.GetPropertyPartOfDomain()
+	if err != nil {
+		return "", err
+	}
+	if pod {
+		domainVal, err := cs.GetPropertyDomain()
+		if err != nil {
+			return "", fmt.Errorf("failed to get domain property: %w", err)
+		}
+		domainName := strings.TrimSpace(fmt.Sprintf("%v", domainVal))
+		if domainName == "" {
+			return "", errors.New("machine does not appear to have a domain set")
+		}
+		return domainName, nil
+	}
+	return "", nil
+}
+
+// DomainJoinedStatus returns the domain joined status of the current computer.
+//
+// NETSETUP_JOIN_STATUS constants from Microsoft Windows API
+// See: https://learn.microsoft.com/en-us/windows/win32/api/lmjoin/ne-lmjoin-netsetup_join_status
+//
+// NetSetupUnknownStatus         uint32 = 0 // The status is unknown
+// NetSetupUnjoined              uint32 = 1 // The computer is not joined to a domain or workgroup
+// NetSetupWorkgroupName         uint32 = 2 // The computer is joined to a workgroup
+// NetSetupDomainName            uint32 = 3 // The computer is joined to a domain
+func DomainJoinedStatus() (uint32, error) {
+	var domain *uint16
+	var status uint32
+
+	if err := windows.NetGetJoinInformation(nil, &domain, &status); err != nil {
+		return 0, fmt.Errorf("failed to get domain join status: %w", err)
+	}
+	defer windows.NetApiBufferFree((*byte)(unsafe.Pointer(domain)))
+
+	return status, nil
+}

metadata.go

@@ -0,0 +1,78 @@
+package ctrld
+
+import (
+	"context"
+	"os"
+	"os/user"
+
+	"github.com/cuonglm/osinfo"
+
+	"github.com/Control-D-Inc/ctrld/internal/system"
+)
+
+const (
+	metadataOsKey                = "os"
+	metadataChassisTypeKey       = "chassis_type"
+	metadataChassisVendorKey     = "chassis_vendor"
+	metadataUsernameKey          = "username"
+	metadataDomainOrWorkgroupKey = "domain_or_workgroup"
+	metadataDomainKey            = "domain"
+)
+
+var (
+	chassisType   string
+	chassisVendor string
+)
+
+// SystemMetadata collects system and user-related SystemMetadata and returns it as a map.
+func SystemMetadata(ctx context.Context) map[string]string {
+	m := make(map[string]string)
+	oi := osinfo.New()
+	m[metadataOsKey] = oi.String()
+	if chassisType == "" && chassisVendor == "" {
+		if ci, err := system.GetChassisInfo(); err == nil {
+			chassisType, chassisVendor = ci.Type, ci.Vendor
+		}
+	}
+	m[metadataChassisTypeKey] = chassisType
+	m[metadataChassisVendorKey] = chassisVendor
+	m[metadataUsernameKey] = currentLoginUser(ctx)
+	m[metadataDomainOrWorkgroupKey] = partOfDomainOrWorkgroup(ctx)
+	domain, err := system.GetActiveDirectoryDomain()
+	if err != nil {
+		ProxyLogger.Load().Debug().Err(err).Msg("Failed to get active directory domain name")
+	}
+	m[metadataDomainKey] = domain
+
+	return m
+}
+
+// currentLoginUser attempts to find the actual login user, even if the process is running as root.
+func currentLoginUser(ctx context.Context) string {
+	// 1. Check SUDO_USER: This is the most reliable way to find the original user
+	// when a script is run via 'sudo'.
+	if sudoUser := os.Getenv("SUDO_USER"); sudoUser != "" {
+		return sudoUser
+	}
+
+	// 2. Check general user login variables. LOGNAME is often preferred over USER.
+	if logName := os.Getenv("LOGNAME"); logName != "" {
+		return logName
+	}
+
+	// 3. Fallback to USER variable.
+	if userEnv := os.Getenv("USER"); userEnv != "" {
+		return userEnv
+	}
+
+	// 4. Final fallback: Use the standard library function to get the *effective* user.
+	// This will return "root" if the process is running as root.
+	currentUser, err := user.Current()
+	if err != nil {
+		// Handle error gracefully, returning a placeholder
+		ProxyLogger.Load().Debug().Err(err).Msg("Failed to get current user")
+		return "unknown"
+	}
+
+	return currentUser.Username
+}

metadata_others.go

@@ -0,0 +1,10 @@
+//go:build !windows
+
+package ctrld
+
+import "context"
+
+// partOfDomainOrWorkgroup checks if the computer is part of a domain or workgroup and returns "true" or "false".
+func partOfDomainOrWorkgroup(ctx context.Context) string {
+	return "false"
+}

metadata_test.go

@@ -0,0 +1,11 @@
+package ctrld
+
+import (
+	"context"
+	"testing"
+)
+
+func Test_metadata(t *testing.T) {
+	m := SystemMetadata(context.Background())
+	t.Logf("metadata: %v", m)
+}

metadata_windows.go

@@ -0,0 +1,22 @@
+package ctrld
+
+import (
+	"context"
+
+	"github.com/Control-D-Inc/ctrld/internal/system"
+)
+
+// partOfDomainOrWorkgroup checks if the computer is part of a domain or workgroup and returns "true" or "false".
+func partOfDomainOrWorkgroup(ctx context.Context) string {
+	status, err := system.DomainJoinedStatus()
+	if err != nil {
+		ProxyLogger.Load().Debug().Err(err).Msg("Failed to get domain join status")
+		return "false"
+	}
+	switch status {
+	case 2, 3:
+		return "true"
+	default:
+		return "false"
+	}
+}

nameservers_linux.go

@@ -5,9 +5,12 @@ import (
 	"bytes"
 	"encoding/hex"
 	"net"
+	"net/netip"
 	"os"
 	"strings"
 
+	"tailscale.com/net/netmon"
+
 	"github.com/Control-D-Inc/ctrld/internal/dns/resolvconffile"
 )
 
@@ -128,3 +131,25 @@ func virtualInterfaces() set {
 	}
 	return s
 }
+
+// validInterfacesMap returns a set containing non virtual interfaces.
+// TODO: deduplicated with cmd/cli/net_linux.go in v2.
+func validInterfaces() set {
+	m := make(map[string]struct{})
+	vis := virtualInterfaces()
+	netmon.ForeachInterface(func(i netmon.Interface, prefixes []netip.Prefix) {
+		if _, existed := vis[i.Name]; existed {
+			return
+		}
+		m[i.Name] = struct{}{}
+	})
+	// Fallback to default route interface if found nothing.
+	if len(m) == 0 {
+		defaultRoute, err := netmon.DefaultRoute()
+		if err != nil {
+			return m
+		}
+		m[defaultRoute.InterfaceName] = struct{}{}
+	}
+	return m
+}

nameservers_windows.go

@@ -20,23 +20,22 @@ import (
 	"golang.org/x/sys/windows"
 	"golang.zx2c4.com/wireguard/windows/tunnel/winipcfg"
 	"tailscale.com/net/netmon"
+
+	"github.com/Control-D-Inc/ctrld/internal/system"
 )
 
 const (
-	maxDNSAdapterRetries                 = 5
-	retryDelayDNSAdapter                 = 1 * time.Second
-	defaultDNSAdapterTimeout             = 10 * time.Second
-	minDNSServers                        = 1 // Minimum number of DNS servers we want to find
-	NetSetupUnknown               uint32 = 0
-	NetSetupWorkgroup             uint32 = 1
-	NetSetupDomain                uint32 = 2
-	NetSetupCloudDomain           uint32 = 3
-	DS_FORCE_REDISCOVERY                 = 0x00000001
-	DS_DIRECTORY_SERVICE_REQUIRED        = 0x00000010
-	DS_BACKGROUND_ONLY                   = 0x00000100
-	DS_IP_REQUIRED                       = 0x00000200
-	DS_IS_DNS_NAME                       = 0x00020000
-	DS_RETURN_DNS_NAME                   = 0x40000000
+	maxDNSAdapterRetries     = 5
+	retryDelayDNSAdapter     = 1 * time.Second
+	defaultDNSAdapterTimeout = 10 * time.Second
+	minDNSServers            = 1 // Minimum number of DNS servers we want to find
+
+	DS_FORCE_REDISCOVERY          = 0x00000001
+	DS_DIRECTORY_SERVICE_REQUIRED = 0x00000010
+	DS_BACKGROUND_ONLY            = 0x00000100
+	DS_IP_REQUIRED                = 0x00000200
+	DS_IS_DNS_NAME                = 0x00020000
+	DS_RETURN_DNS_NAME            = 0x40000000
 )
 
 type DomainControllerInfo struct {
@@ -131,7 +130,7 @@ func getDNSServers(ctx context.Context) ([]string, error) {
 	var dcServers []string
 	isDomain := checkDomainJoined()
 	if isDomain {
-		domainName, err := getLocalADDomain()
+		domainName, err := system.GetActiveDirectoryDomain()
 		if err != nil {
 			Log(context.Background(), logger.Debug(),
 				"Failed to get local AD domain: %v", err)
@@ -158,7 +157,7 @@ func getDNSServers(ctx context.Context) ([]string, error) {
 					0,                                    // DomainGuid - not needed
 					0,                                    // SiteName - not needed
 					uintptr(flags),                       // Flags
-					uintptr(unsafe.Pointer(&info))) // DomainControllerInfo - output
+					uintptr(unsafe.Pointer(&info)))       // DomainControllerInfo - output
 
 				if ret != 0 {
 					switch ret {
@@ -340,74 +339,18 @@ func currentNameserversFromResolvconf() []string {
 func checkDomainJoined() bool {
 	logger := *ProxyLogger.Load()
 
-	var domain *uint16
-	var status uint32
-
-	err := windows.NetGetJoinInformation(nil, &domain, &status)
+	status, err := system.DomainJoinedStatus()
 	if err != nil {
-		Log(context.Background(), logger.Debug(),
-			"Failed to get domain join status: %v", err)
+		logger.Debug().Msgf("Failed to get domain joined status: %v", err)
 		return false
 	}
-	defer windows.NetApiBufferFree((*byte)(unsafe.Pointer(domain)))
-
-	domainName := windows.UTF16PtrToString(domain)
-	Log(context.Background(), logger.Debug(),
-		"Domain join status: domain=%s status=%d (Unknown=0, Workgroup=1, Domain=2, CloudDomain=3)",
-		domainName, status)
-
-	// Consider domain or cloud domain as domain-joined
-	isDomain := status == NetSetupDomain || status == NetSetupCloudDomain
-	Log(context.Background(), logger.Debug(),
-		"Is domain joined? status=%d, traditional=%v, cloud=%v, result=%v",
-		status,
-		status == NetSetupDomain,
-		status == NetSetupCloudDomain,
-		isDomain)
+	isDomain := status == syscall.NetSetupDomainName
+	logger.Debug().Msg("Domain join status: (UnknownStatus=0, Unjoined=1, WorkgroupName=2, DomainName=3)")
+	logger.Debug().Msgf("Is domain joined? status=%d, result=%v", status, isDomain)
 
 	return isDomain
 }
 
-// getLocalADDomain uses Microsoft's WMI wrappers (github.com/microsoft/wmi/pkg/*)
-// to query the Domain field from Win32_ComputerSystem instead of a direct go-ole call.
-func getLocalADDomain() (string, error) {
-	log.SetOutput(io.Discard)
-	defer log.SetOutput(os.Stderr)
-	// 1) Check environment variable
-	envDomain := os.Getenv("USERDNSDOMAIN")
-	if envDomain != "" {
-		return strings.TrimSpace(envDomain), nil
-	}
-
-	// 2) Query WMI via the microsoft/wmi library
-	whost := host.NewWmiLocalHost()
-	q := query.NewWmiQuery("Win32_ComputerSystem")
-	instances, err := instance.GetWmiInstancesFromHost(whost, string(constant.CimV2), q)
-	if instances != nil {
-		defer instances.Close()
-	}
-	if err != nil {
-		return "", fmt.Errorf("WMI query failed: %v", err)
-	}
-
-	// If no results, return an error
-	if len(instances) == 0 {
-		return "", fmt.Errorf("no rows returned from Win32_ComputerSystem")
-	}
-
-	// We only care about the first row
-	domainVal, err := instances[0].GetProperty("Domain")
-	if err != nil {
-		return "", fmt.Errorf("machine does not appear to have a domain set: %v", err)
-	}
-
-	domainName := strings.TrimSpace(fmt.Sprintf("%v", domainVal))
-	if domainName == "" {
-		return "", fmt.Errorf("machine does not appear to have a domain set")
-	}
-	return domainName, nil
-}
-
 // validInterfaces returns a list of all physical interfaces.
 // this is a duplicate of what is in net_windows.go, we should
 // clean this up so there is only one version

net_darwin.go

@@ -0,0 +1,35 @@
+package ctrld
+
+import (
+	"bufio"
+	"bytes"
+	"io"
+	"os/exec"
+	"strings"
+)
+
+// validInterfaces returns a set of all valid hardware ports.
+// TODO: deduplicated with cmd/cli/net_darwin.go in v2.
+func validInterfaces() map[string]struct{} {
+	b, err := exec.Command("networksetup", "-listallhardwareports").Output()
+	if err != nil {
+		return nil
+	}
+	return parseListAllHardwarePorts(bytes.NewReader(b))
+}
+
+// parseListAllHardwarePorts parses output of "networksetup -listallhardwareports"
+// and returns map presents all hardware ports.
+func parseListAllHardwarePorts(r io.Reader) map[string]struct{} {
+	m := make(map[string]struct{})
+	scanner := bufio.NewScanner(r)
+	for scanner.Scan() {
+		line := scanner.Text()
+		after, ok := strings.CutPrefix(line, "Device: ")
+		if !ok {
+			continue
+		}
+		m[after] = struct{}{}
+	}
+	return m
+}

net_darwin_test.go

@@ -1,4 +1,4 @@
-package cli
+package ctrld
 
 import (
 	"maps"

net_others.go

@@ -0,0 +1,15 @@
+//go:build !darwin && !windows && !linux
+
+package ctrld
+
+import "tailscale.com/net/netmon"
+
+// validInterfaces returns a set containing only default route interfaces.
+// TODO: deuplicated with cmd/cli/net_others.go in v2.
+func validInterfaces() map[string]struct{} {
+	defaultRoute, err := netmon.DefaultRoute()
+	if err != nil {
+		return nil
+	}
+	return map[string]struct{}{defaultRoute.InterfaceName: {}}
+}

resolver.go

@@ -729,10 +729,15 @@ func newResolverWithNameserver(nameservers []string) *osResolver {
 	return r
 }
 
-// Rfc1918Addresses returns the list of local interfaces private IP addresses
+// Rfc1918Addresses returns the list of local physical interfaces private IP addresses
 func Rfc1918Addresses() []string {
+	vis := validInterfaces()
 	var res []string
 	netmon.ForeachInterface(func(i netmon.Interface, prefixes []netip.Prefix) {
+		// Skip virtual interfaces.
+		if _, existed := vis[i.Name]; !existed {
+			return
+		}
 		addrs, _ := i.Addrs()
 		for _, addr := range addrs {
 			ipNet, ok := addr.(*net.IPNet)

resolver_test.go

@@ -282,6 +282,35 @@ func Test_Edns0_CacheReply(t *testing.T) {
 	}
 }
 
+// https://github.com/Control-D-Inc/ctrld/issues/255
+func Test_legacyResolverWithBigExtraSection(t *testing.T) {
+	lanPC, err := net.ListenPacket("udp", "127.0.0.1:0") // 127.0.0.1 is considered LAN (loopback)
+	if err != nil {
+		t.Fatalf("failed to listen on LAN address: %v", err)
+	}
+	lanServer, lanAddr, err := runLocalPacketConnTestServer(t, lanPC, bigExtraSectionHandler())
+	if err != nil {
+		t.Fatalf("failed to run LAN test server: %v", err)
+	}
+	defer lanServer.Shutdown()
+
+	uc := &UpstreamConfig{
+		Name:     "Legacy",
+		Type:     ResolverTypeLegacy,
+		Endpoint: lanAddr,
+	}
+	uc.Init()
+	r, err := NewResolver(uc)
+	if err != nil {
+		t.Fatal(err)
+	}
+
+	_, err = r.Resolve(context.Background(), uc.VerifyMsg())
+	if err != nil {
+		t.Fatal(err)
+	}
+}
+
 func Test_upstreamTypeFromEndpoint(t *testing.T) {
 	tests := []struct {
 		name         string
@@ -370,6 +399,68 @@ func countHandler(call *atomic.Int64) dns.HandlerFunc {
 	}
 }
 
+func mustRR(s string) dns.RR {
+	r, err := dns.NewRR(s)
+	if err != nil {
+		panic(err)
+	}
+	return r
+}
+
+func bigExtraSectionHandler() dns.HandlerFunc {
+	return func(w dns.ResponseWriter, msg *dns.Msg) {
+		m := &dns.Msg{
+			Answer: []dns.RR{
+				mustRR(".			7149	IN	NS	m.root-servers.net."),
+				mustRR(".			7149	IN	NS	c.root-servers.net."),
+				mustRR(".			7149	IN	NS	e.root-servers.net."),
+				mustRR(".			7149	IN	NS	j.root-servers.net."),
+				mustRR(".			7149	IN	NS	g.root-servers.net."),
+				mustRR(".			7149	IN	NS	k.root-servers.net."),
+				mustRR(".			7149	IN	NS	l.root-servers.net."),
+				mustRR(".			7149	IN	NS	d.root-servers.net."),
+				mustRR(".			7149	IN	NS	h.root-servers.net."),
+				mustRR(".			7149	IN	NS	b.root-servers.net."),
+				mustRR(".			7149	IN	NS	a.root-servers.net."),
+				mustRR(".			7149	IN	NS	f.root-servers.net."),
+				mustRR(".			7149	IN	NS	i.root-servers.net."),
+			},
+			Extra: []dns.RR{
+				mustRR("m.root-servers.net.	656	IN	A	202.12.27.33"),
+				mustRR("m.root-servers.net.	656	IN	AAAA	2001:dc3::35"),
+				mustRR("c.root-servers.net.	656	IN	A	192.33.4.12"),
+				mustRR("c.root-servers.net.	656	IN	AAAA	2001:500:2::c"),
+				mustRR("e.root-servers.net.	656	IN	A	192.203.230.10"),
+				mustRR("e.root-servers.net.	656	IN	AAAA	2001:500:a8::e"),
+				mustRR("j.root-servers.net.	656	IN	A	192.58.128.30"),
+				mustRR("j.root-servers.net.	656	IN	AAAA	2001:503:c27::2:30"),
+				mustRR("g.root-servers.net.	656	IN	A	192.112.36.4"),
+				mustRR("g.root-servers.net.	656	IN	AAAA	2001:500:12::d0d"),
+				mustRR("k.root-servers.net.	656	IN	A	193.0.14.129"),
+				mustRR("k.root-servers.net.	656	IN	AAAA	2001:7fd::1"),
+				mustRR("l.root-servers.net.	656	IN	A	199.7.83.42"),
+				mustRR("l.root-servers.net.	656	IN	AAAA	2001:500:9f::42"),
+				mustRR("d.root-servers.net.	656	IN	A	199.7.91.13"),
+				mustRR("d.root-servers.net.	656	IN	AAAA	2001:500:2d::d"),
+				mustRR("h.root-servers.net.	656	IN	A	198.97.190.53"),
+				mustRR("h.root-servers.net.	656	IN	AAAA	2001:500:1::53"),
+				mustRR("b.root-servers.net.	656	IN	A	170.247.170.2"),
+				mustRR("b.root-servers.net.	656	IN	AAAA	2801:1b8:10::b"),
+				mustRR("a.root-servers.net.	656	IN	A	198.41.0.4"),
+				mustRR("a.root-servers.net.	656	IN	AAAA	2001:503:ba3e::2:30"),
+				mustRR("f.root-servers.net.	656	IN	A	192.5.5.241"),
+				mustRR("f.root-servers.net.	656	IN	AAAA	2001:500:2f::f"),
+				mustRR("i.root-servers.net.	656	IN	A	192.36.148.17"),
+				mustRR("i.root-servers.net.	656	IN	AAAA	2001:7fe::53"),
+			},
+		}
+
+		m.Compress = true
+		m.SetReply(msg)
+		w.WriteMsg(m)
+	}
+}
+
 func generateEdns0ClientCookie() string {
 	cookie := make([]byte, 8)
 	if _, err := rand.Read(cookie); err != nil {