cmd/derper: add default-off debug endpoint for profiling

Updates https://github.com/tailscale/corp/issues/11492
Signed-off-by: Tom DNetto <tom@tailscale.com>

.github/workflows/go-licenses.yml

@@ -50,11 +50,11 @@ jobs:
           private_key: ${{ secrets.LICENSING_APP_PRIVATE_KEY }}
 
       - name: Send pull request
-        uses: peter-evans/create-pull-request@5b4a9f6a9e2af26e5f02351490b90d01eb8ec1e5 #v5.0.0
+        uses: peter-evans/create-pull-request@284f54f989303d2699d373481a0cfa13ad5a6666 #v5.0.1
         with:
           token: ${{ steps.generate-token.outputs.token }}
-          author: License Updater <noreply@tailscale.com>
-          committer: License Updater <noreply@tailscale.com>
+          author: License Updater <noreply+license-updater@tailscale.com>
+          committer: License Updater <noreply+license-updater@tailscale.com>
           branch: licenses/cli
           commit-message: "licenses: update tailscale{,d} licenses"
           title: "licenses: update tailscale{,d} licenses"

.github/workflows/golangci-lint.yml

@@ -25,7 +25,7 @@ jobs:
     steps:
       - uses: actions/checkout@v3
 
-      - uses: actions/setup-go@v3
+      - uses: actions/setup-go@v4
         with:
           go-version-file: go.mod
           cache: false

.github/workflows/installer.yml

@@ -0,0 +1,102 @@
+name: test installer.sh
+
+on:
+  push:
+    branches:
+      - "main"
+    paths:
+      - scripts/installer.sh
+  pull_request:
+    branches:
+      - "*"
+    paths:
+      - scripts/installer.sh
+
+jobs:
+  test:
+    strategy:
+      # Don't abort the entire matrix if one element fails.
+      fail-fast: false
+      # Don't start all of these at once, which could saturate Github workers.
+      max-parallel: 4
+      matrix:
+        image:
+          # This is a list of Docker images against which we test our installer.
+          # If you find that some of these no longer exist, please feel free
+          # to remove them from the list.
+          # When adding new images, please only use official ones.
+          - "debian:oldstable-slim"
+          - "debian:stable-slim"
+          - "debian:testing-slim"
+          - "debian:sid-slim"
+          - "ubuntu:18.04"
+          - "ubuntu:20.04"
+          - "ubuntu:22.04"
+          - "ubuntu:22.10"
+          - "ubuntu:23.04"
+          - "elementary/docker:stable"
+          - "elementary/docker:unstable"
+          - "parrotsec/core:lts-amd64"
+          - "parrotsec/core:latest"
+          - "kalilinux/kali-rolling"
+          - "kalilinux/kali-dev"
+          - "oraclelinux:9"
+          - "oraclelinux:8"
+          - "fedora:latest"
+          - "rockylinux:8.7"
+          - "rockylinux:9"
+          - "amazonlinux:latest"
+          - "opensuse/leap:latest"
+          - "opensuse/tumbleweed:latest"
+          - "archlinux:latest"
+          - "alpine:3.14"
+          - "alpine:latest"
+          - "alpine:edge"
+        deps:
+          # Run all images installing curl as a dependency.
+          - curl
+        include:
+          # Check a few images with wget rather than curl.
+          - { image: "debian:oldstable-slim", deps: "wget" }
+          - { image: "debian:sid-slim", deps: "wget" }
+          - { image: "ubuntu:23.04", deps: "wget" }
+          # Ubuntu 16.04 also needs apt-transport-https installed.
+          - { image: "ubuntu:16.04", deps: "curl apt-transport-https" }
+          - { image: "ubuntu:16.04", deps: "wget apt-transport-https" }
+    runs-on: ubuntu-latest
+    container:
+      image: ${{ matrix.image }}
+      options: --user root
+    steps:
+    - name: install dependencies (yum)
+      # tar and gzip are needed by the actions/checkout below.
+      run: yum install -y --allowerasing tar gzip ${{ matrix.deps }}
+      if: |
+        contains(matrix.image, 'centos')
+        || contains(matrix.image, 'oraclelinux')
+        || contains(matrix.image, 'fedora')
+        || contains(matrix.image, 'amazonlinux')
+    - name: install dependencies (zypper)
+      # tar and gzip are needed by the actions/checkout below.
+      run: zypper --non-interactive install tar gzip
+      if: contains(matrix.image, 'opensuse')
+    - name: install dependencies (apt-get)
+      run: |
+        apt-get update
+        apt-get install -y ${{ matrix.deps }}
+      if: |
+        contains(matrix.image, 'debian')
+        || contains(matrix.image, 'ubuntu')
+        || contains(matrix.image, 'elementary')
+        || contains(matrix.image, 'parrotsec')
+        || contains(matrix.image, 'kalilinux')
+    - name: checkout
+      uses: actions/checkout@v3
+    - name: run installer
+      run: scripts/installer.sh
+      # Package installation can fail in docker because systemd is not running
+      # as PID 1, so ignore errors at this step. The real check is the
+      # `tailscale --version` command below.
+      continue-on-error: true
+    - name: check tailscale version
+      run: tailscale --version

.github/workflows/test.yml

@@ -65,8 +65,9 @@ jobs:
           ~\AppData\Local\go-build
         # The -2- here should be incremented when the scheme of data to be
         # cached changes (e.g. path above changes).
-        key: ${{ github.job }}-${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-2-${{ hashFiles('**/go.sum') }}
+        key: ${{ github.job }}-${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-2-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
         restore-keys: |
+          ${{ github.job }}-${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-2-${{ hashFiles('**/go.sum') }}
           ${{ github.job }}-${{ runner.os }}-${{ matrix.goarch }}-${{ matrix.buildflags }}-go-2-
     - name: build all
       run: ./tool/go build ${{matrix.buildflags}} ./...
@@ -89,7 +90,11 @@ jobs:
     - name: build test wrapper
       run: ./tool/go build -o /tmp/testwrapper ./cmd/testwrapper
     - name: test all
-      run: ./tool/go test ${{matrix.buildflags}} -exec=/tmp/testwrapper -bench=. -benchtime=1x ./...
+      run: ./tool/go test ${{matrix.buildflags}} -exec=/tmp/testwrapper
+      env:
+        GOARCH: ${{ matrix.goarch }}
+    - name: bench all
+      run: ./tool/go test ${{matrix.buildflags}} -exec=/tmp/testwrapper -test.bench=. -test.benchtime=1x -test.run=^$
       env:
         GOARCH: ${{ matrix.goarch }}
     - name: check that no tracked files changed
@@ -131,8 +136,9 @@ jobs:
           ~\AppData\Local\go-build
         # The -2- here should be incremented when the scheme of data to be
         # cached changes (e.g. path above changes).
-        key: ${{ github.job }}-${{ runner.os }}-go-2-${{ hashFiles('**/go.sum') }}
+        key: ${{ github.job }}-${{ runner.os }}-go-2-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
         restore-keys: |
+          ${{ github.job }}-${{ runner.os }}-go-2-${{ hashFiles('**/go.sum') }}
           ${{ github.job }}-${{ runner.os }}-go-2-
     - name: test
       # Don't use -bench=. -benchtime=1x.
@@ -206,8 +212,9 @@ jobs:
           ~\AppData\Local\go-build
         # The -2- here should be incremented when the scheme of data to be
         # cached changes (e.g. path above changes).
-        key: ${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-${{ hashFiles('**/go.sum') }}
+        key: ${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
         restore-keys: |
+          ${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-${{ hashFiles('**/go.sum') }}
           ${{ github.job }}-${{ runner.os }}-${{ matrix.goos }}-${{ matrix.goarch }}-go-2-
     - name: build all
       run: ./tool/go build ./cmd/...
@@ -271,8 +278,9 @@ jobs:
           ~\AppData\Local\go-build
         # The -2- here should be incremented when the scheme of data to be
         # cached changes (e.g. path above changes).
-        key: ${{ github.job }}-${{ runner.os }}-go-2-${{ hashFiles('**/go.sum') }}
+        key: ${{ github.job }}-${{ runner.os }}-go-2-${{ hashFiles('**/go.sum') }}-${{ github.run_id }}
         restore-keys: |
+          ${{ github.job }}-${{ runner.os }}-go-2-${{ hashFiles('**/go.sum') }}
           ${{ github.job }}-${{ runner.os }}-go-2-
     - name: build tsconnect client
       run: ./tool/go build ./cmd/tsconnect/wasm ./cmd/tailscale/cli

.github/workflows/update-flake.yml

@@ -35,11 +35,11 @@ jobs:
           private_key: ${{ secrets.LICENSING_APP_PRIVATE_KEY }}
 
       - name: Send pull request
-        uses: peter-evans/create-pull-request@5b4a9f6a9e2af26e5f02351490b90d01eb8ec1e5 #v5.0.0
+        uses: peter-evans/create-pull-request@284f54f989303d2699d373481a0cfa13ad5a6666 #v5.0.1
         with:
           token: ${{ steps.generate-token.outputs.token }}
-          author: Flakes Updater <noreply@tailscale.com>
-          committer: Flakes Updater <noreply@tailscale.com>
+          author: Flakes Updater <noreply+flakes-updater@tailscale.com>
+          committer: Flakes Updater <noreply+flakes-updater@tailscale.com>
           branch: flakes
           commit-message: "go.mod.sri: update SRI hash for go.mod changes"
           title: "go.mod.sri: update SRI hash for go.mod changes"

Makefile

@@ -48,11 +48,10 @@ staticcheck: ## Run staticcheck.io checks
 	./tool/go run honnef.co/go/tools/cmd/staticcheck -- $$(./tool/go list ./... | grep -v tempfork)
 
 spk: ## Build synology package for ${SYNO_ARCH} architecture and ${SYNO_DSM} DSM version
-	PATH="${PWD}/tool:${PATH}" ./tool/go run github.com/tailscale/tailscale-synology@main -o tailscale.spk --source=. --goarch=${SYNO_ARCH} --dsm-version=${SYNO_DSM}
+	./tool/go run ./cmd/dist build synology/dsm${SYNO_DSM}/${SYNO_ARCH}
 
 spkall: ## Build synology packages for all architectures and DSM versions
-	mkdir -p spks
-	PATH="${PWD}/tool:${PATH}" ./tool/go run github.com/tailscale/tailscale-synology@main -o spks --source=. --goarch=all --dsm-version=all
+	./tool/go run ./cmd/dist build synology
 
 pushspk: spk ## Push and install synology package on ${SYNO_HOST} host
 	echo "Pushing SPK to root@${SYNO_HOST} (env var SYNO_HOST) ..."

VERSION.txt

@@ -1 +1 @@
-1.39.0
+1.43.0

api.md

@@ -503,7 +503,8 @@ Returns the enabled and advertised subnet routes for a device.
 POST /api/v2/device/{deviceID}/authorized
 ```
 
-Authorize a device. This call marks a device as authorized for tailnets where device authorization is required.
+Authorize a device.
+This call marks a device as authorized or revokes its authorization for tailnets where device authorization is required, according to the `authorized` field in the payload.
 
 This returns a successful 2xx response with an empty JSON object in the response body.
 
@@ -515,7 +516,7 @@ The ID of the device.
 
 #### `authorized` (required in `POST` body)
 
-Specify whether the device is authorized. Only 'true' is currently supported.
+Specify whether the device is authorized.
 
 ``` jsonc
 {

build_dist.sh

@@ -16,7 +16,7 @@ if [ -n "${TS_USE_TOOLCHAIN:-}" ]; then
 	go="./tool/go"
 fi
 
-eval `GOOS=$($go env GOHOSTOS) GOARCH=$($go env GOHOSTARCH) $go run ./cmd/mkversion`
+eval `CGO_ENABLED=0 GOOS=$($go env GOHOSTOS) GOARCH=$($go env GOHOSTARCH) $go run ./cmd/mkversion`
 
 if [ "$1" = "shellvars" ]; then
 	cat <<EOF
@@ -49,4 +49,4 @@ while [ "$#" -gt 1 ]; do
 	esac
 done
 
-exec ./tool/go build ${tags:+-tags=$tags} -ldflags "$ldflags" "$@"
+exec $go build ${tags:+-tags=$tags} -ldflags "$ldflags" "$@"

client/tailscale/devices.go

@@ -12,7 +12,6 @@ import (
 	"fmt"
 	"net/http"
 	"net/url"
-	"strings"
 
 	"tailscale.com/types/opt"
 )
@@ -213,8 +212,20 @@ func (c *Client) DeleteDevice(ctx context.Context, deviceID string) (err error)
 
 // AuthorizeDevice marks a device as authorized.
 func (c *Client) AuthorizeDevice(ctx context.Context, deviceID string) error {
+	return c.SetAuthorized(ctx, deviceID, true)
+}
+
+// SetAuthorized marks a device as authorized or not.
+func (c *Client) SetAuthorized(ctx context.Context, deviceID string, authorized bool) error {
+	params := &struct {
+		Authorized bool `json:"authorized"`
+	}{Authorized: authorized}
+	data, err := json.Marshal(params)
+	if err != nil {
+		return err
+	}
 	path := fmt.Sprintf("%s/api/v2/device/%s/authorized", c.baseURL(), url.PathEscape(deviceID))
-	req, err := http.NewRequestWithContext(ctx, "POST", path, strings.NewReader(`{"authorized":true}`))
+	req, err := http.NewRequestWithContext(ctx, "POST", path, bytes.NewBuffer(data))
 	if err != nil {
 		return err
 	}

client/tailscale/keys.go

@@ -68,12 +68,32 @@ func (c *Client) Keys(ctx context.Context) ([]string, error) {
 }
 
 // CreateKey creates a new key for the current user. Currently, only auth keys
-// can be created. Returns the key itself, which cannot be retrieved again
+// can be created. It returns the secret key itself, which cannot be retrieved again
 // later, and the key metadata.
-func (c *Client) CreateKey(ctx context.Context, caps KeyCapabilities) (string, *Key, error) {
+//
+// To create a key with a specific expiry, use CreateKeyWithExpiry.
+func (c *Client) CreateKey(ctx context.Context, caps KeyCapabilities) (keySecret string, keyMeta *Key, _ error) {
+	return c.CreateKeyWithExpiry(ctx, caps, 0)
+}
+
+// CreateKeyWithExpiry is like CreateKey, but allows specifying a expiration time.
+//
+// The time is truncated to a whole number of seconds. If zero, that means no expiration.
+func (c *Client) CreateKeyWithExpiry(ctx context.Context, caps KeyCapabilities, expiry time.Duration) (keySecret string, keyMeta *Key, _ error) {
+
+	// convert expirySeconds to an int64 (seconds)
+	expirySeconds := int64(expiry.Seconds())
+	if expirySeconds < 0 {
+		return "", nil, fmt.Errorf("expiry must be positive")
+	}
+	if expirySeconds == 0 && expiry != 0 {
+		return "", nil, fmt.Errorf("non-zero expiry must be at least one second")
+	}
+
 	keyRequest := struct {
-		Capabilities KeyCapabilities `json:"capabilities"`
-	}{caps}
+		Capabilities  KeyCapabilities `json:"capabilities"`
+		ExpirySeconds int64           `json:"expirySeconds,omitempty"`
+	}{caps, int64(expirySeconds)}
 	bs, err := json.Marshal(keyRequest)
 	if err != nil {
 		return "", nil, err

cmd/derper/cert.go

@@ -81,7 +81,7 @@ func (m *manualCertManager) TLSConfig() *tls.Config {
 	return &tls.Config{
 		Certificates: nil,
 		NextProtos: []string{
-			"h2", "http/1.1", // enable HTTP/2
+			"http/1.1",
 		},
 		GetCertificate: m.getCertificate,
 	}

cmd/derper/depaware.txt

@@ -3,7 +3,9 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         filippo.io/edwards25519                                      from github.com/hdevalence/ed25519consensus
         filippo.io/edwards25519/field                                from filippo.io/edwards25519
    W 💣 github.com/Microsoft/go-winio                                from tailscale.com/safesocket
+   W 💣 github.com/Microsoft/go-winio/internal/fs                    from github.com/Microsoft/go-winio
    W 💣 github.com/Microsoft/go-winio/internal/socket                from github.com/Microsoft/go-winio
+   W    github.com/Microsoft/go-winio/internal/stringbuffer          from github.com/Microsoft/go-winio/internal/fs
    W    github.com/Microsoft/go-winio/pkg/guid                       from github.com/Microsoft/go-winio+
    W 💣 github.com/alexbrainman/sspi                                 from github.com/alexbrainman/sspi/internal/common+
    W    github.com/alexbrainman/sspi/internal/common                 from github.com/alexbrainman/sspi/negotiate
@@ -13,7 +15,6 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         github.com/fxamacker/cbor/v2                                 from tailscale.com/tka
         github.com/golang/groupcache/lru                             from tailscale.com/net/dnscache
         github.com/golang/protobuf/proto                             from github.com/matttproud/golang_protobuf_extensions/pbutil+
-        github.com/golang/protobuf/ptypes/timestamp                  from github.com/prometheus/client_model/go
         github.com/hdevalence/ed25519consensus                       from tailscale.com/tka
    L    github.com/josharian/native                                  from github.com/mdlayher/netlink+
    L 💣 github.com/jsimonetti/rtnetlink                              from tailscale.com/net/interfaces+
@@ -64,7 +65,7 @@ tailscale.com/cmd/derper dependencies: (generated by github.com/tailscale/depawa
         google.golang.org/protobuf/runtime/protoiface                from github.com/golang/protobuf/proto+
         google.golang.org/protobuf/runtime/protoimpl                 from github.com/golang/protobuf/proto+
         google.golang.org/protobuf/types/descriptorpb                from google.golang.org/protobuf/reflect/protodesc
-        google.golang.org/protobuf/types/known/timestamppb           from github.com/golang/protobuf/ptypes/timestamp+
+        google.golang.org/protobuf/types/known/timestamppb           from github.com/prometheus/client_golang/prometheus+
         nhooyr.io/websocket                                          from tailscale.com/cmd/derper+
         nhooyr.io/websocket/internal/errd                            from nhooyr.io/websocket
         nhooyr.io/websocket/internal/xsync                           from nhooyr.io/websocket

cmd/derper/derper.go

@@ -12,15 +12,19 @@ import (
 	"expvar"
 	"flag"
 	"fmt"
+	"html"
 	"io"
 	"log"
 	"math"
 	"net"
 	"net/http"
+	"net/http/pprof"
 	"net/netip"
 	"os"
 	"path/filepath"
 	"regexp"
+	"runtime"
+	"strconv"
 	"strings"
 	"time"
 
@@ -33,6 +37,7 @@ import (
 	"tailscale.com/net/stun"
 	"tailscale.com/tsweb"
 	"tailscale.com/types/key"
+	"tailscale.com/version"
 )
 
 var (
@@ -55,6 +60,8 @@ var (
 
 	acceptConnLimit = flag.Float64("accept-connection-limit", math.Inf(+1), "rate limit for accepting new connection")
 	acceptConnBurst = flag.Int("accept-connection-burst", math.MaxInt, "burst limit for accepting new connection")
+
+	debugAddr = flag.String("debug_addr", "", "listening address for debug server")
 )
 
 var (
@@ -136,6 +143,7 @@ func main() {
 
 	if *dev {
 		*addr = ":3340" // above the keys DERP
+		*debugAddr = "localhost:8383"
 		log.Printf("Running in dev mode.")
 		tsweb.DevMode = true
 	}
@@ -222,6 +230,11 @@ func main() {
 		go serveSTUN(listenHost, *stunPort)
 	}
 
+	if *debugAddr != "" {
+		log.Printf("running debug server on %s", *debugAddr)
+		go runDebugServer(*debugAddr, s)
+	}
+
 	quietLogger := log.New(logFilter{}, "", 0)
 	httpsrv := &http.Server{
 		Addr:     *addr,
@@ -513,3 +526,79 @@ func (logFilter) Write(p []byte) (int, error) {
 	log.Printf("%s", p)
 	return len(p), nil
 }
+
+func runDebugServer(addr string, s *derp.Server) {
+	mux := http.NewServeMux()
+	mux.Handle("/debug/vars", http.DefaultServeMux)  // serve out expvar
+	mux.HandleFunc("/debug/varz", tsweb.VarzHandler) // expvar but in prometheus format
+	mux.HandleFunc("/debug/pprof/", pprof.Index)
+	mux.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
+	mux.HandleFunc("/debug/pprof/profile", pprof.Profile)
+	mux.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
+	mux.HandleFunc("/debug/pprof/trace", pprof.Trace)
+	mux.Handle("/debug/pprofrate", http.HandlerFunc(handlePprofRate))
+
+	mux.Handle("/", http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
+		w.Header().Set("Content-Type", "text/html; charset=utf-8")
+		w.WriteHeader(200)
+		fmt.Fprintf(w, `<html><body>
+<h1>DERP</h1>
+<p>
+  This is a Tailscale DERP debug server.
+</p>
+<ul>
+  <li>Version: <pre style="display: inline">%s</pre>
+  <li><a href="/debug/vars">/debug/vars</a> (JSON)</li>
+  <li><a href="/debug/varz">/debug/varz</a> (Prometheus)</li>
+  <li><a href="/debug/pprof">/debug/pprof</a></li>
+  <li><a href="/debug/pprof/goroutine?debug=1">/debug/pprof/goroutine?debug=1</a> (goroutine summary)</li>
+</ul>
+`, html.EscapeString(version.Long()))
+	}))
+
+	srv := &http.Server{
+		Addr:    addr,
+		Handler: mux,
+	}
+	if err := srv.ListenAndServe(); err != nil {
+		if err != http.ErrServerClosed {
+			log.Fatal(err)
+		}
+	}
+}
+
+// handlePprofRate adjusts the pprof rate.
+//
+//	$ curl -d block=0 http://localhost:8383/debug/pprofrate
+//	$ curl -d mutex=0 http://localhost:8383/debug/pprofrate
+//
+// See:
+//
+//   - https://pkg.go.dev/runtime#SetMutexProfileFraction
+//   - https://pkg.go.dev/runtime#SetBlockProfileRate
+//
+// And corp#5277.
+func handlePprofRate(w http.ResponseWriter, r *http.Request) {
+	if r.Method != "POST" {
+		http.Error(w, "method not allowed; want POST", http.StatusMethodNotAllowed)
+		return
+	}
+	if s := r.FormValue("block"); s != "" {
+		v, err := strconv.Atoi(s)
+		if err != nil {
+			http.Error(w, "bad block value", http.StatusBadRequest)
+			return
+		}
+		runtime.SetBlockProfileRate(v)
+		fmt.Fprintf(w, "block set to %v\n", v)
+	}
+	if s := r.FormValue("mutex"); s != "" {
+		v, err := strconv.Atoi(s)
+		if err != nil {
+			http.Error(w, "bad mutex value", http.StatusBadRequest)
+			return
+		}
+		old := runtime.SetMutexProfileFraction(v)
+		fmt.Fprintf(w, "mutex changed from %v to %v\n", old, v)
+	}
+}

cmd/dist/dist.go

@@ -13,15 +13,38 @@ import (
 
 	"tailscale.com/release/dist"
 	"tailscale.com/release/dist/cli"
+	"tailscale.com/release/dist/synology"
 	"tailscale.com/release/dist/unixpkgs"
 )
 
+var synologyPackageCenter bool
+
 func getTargets() ([]dist.Target, error) {
-	return unixpkgs.Targets(), nil
+	var ret []dist.Target
+
+	ret = append(ret, unixpkgs.Targets()...)
+	// Synology packages can be built either for sideloading, or for
+	// distribution by Synology in their package center. When
+	// distributed through the package center, apps can request
+	// additional permissions to use a tuntap interface and control
+	// the NAS's network stack, rather than be forced to run in
+	// userspace mode.
+	//
+	// Since only we can provide packages to Synology for
+	// distribution, we default to building the "sideload" variant of
+	// packages that we distribute on pkgs.tailscale.com.
+	ret = append(ret, synology.Targets(synologyPackageCenter)...)
+	return ret, nil
 }
 
 func main() {
 	cmd := cli.CLI(getTargets)
+	for _, subcmd := range cmd.Subcommands {
+		if subcmd.Name == "build" {
+			subcmd.FlagSet.BoolVar(&synologyPackageCenter, "synology-package-center", false, "build synology packages with extra metadata for the official package center")
+		}
+	}
+
 	if err := cmd.ParseAndRun(context.Background(), os.Args[1:]); err != nil && !errors.Is(err, flag.ErrHelp) {
 		log.Fatal(err)
 	}

cmd/get-authkey/main.go

@@ -29,9 +29,9 @@ func main() {
 	tags := flag.String("tags", "", "comma-separated list of tags to apply to the authkey")
 	flag.Parse()
 
-	clientId := os.Getenv("TS_API_CLIENT_ID")
+	clientID := os.Getenv("TS_API_CLIENT_ID")
 	clientSecret := os.Getenv("TS_API_CLIENT_SECRET")
-	if clientId == "" || clientSecret == "" {
+	if clientID == "" || clientSecret == "" {
 		log.Fatal("TS_API_CLIENT_ID and TS_API_CLIENT_SECRET must be set")
 	}
 
@@ -39,22 +39,22 @@ func main() {
 		log.Fatal("at least one tag must be specified")
 	}
 
-	baseUrl := os.Getenv("TS_BASE_URL")
-	if baseUrl == "" {
-		baseUrl = "https://api.tailscale.com"
+	baseURL := os.Getenv("TS_BASE_URL")
+	if baseURL == "" {
+		baseURL = "https://api.tailscale.com"
 	}
 
 	credentials := clientcredentials.Config{
-		ClientID:     clientId,
+		ClientID:     clientID,
 		ClientSecret: clientSecret,
-		TokenURL:     baseUrl + "/api/v2/oauth/token",
+		TokenURL:     baseURL + "/api/v2/oauth/token",
 		Scopes:       []string{"device"},
 	}
 
 	ctx := context.Background()
 	tsClient := tailscale.NewClient("-", nil)
 	tsClient.HTTPClient = credentials.Client(ctx)
-	tsClient.BaseURL = baseUrl
+	tsClient.BaseURL = baseURL
 
 	caps := tailscale.KeyCapabilities{
 		Devices: tailscale.KeyDeviceCapabilities{

cmd/k8s-operator/operator.go

@@ -25,7 +25,6 @@ import (
 	apierrors "k8s.io/apimachinery/pkg/api/errors"
 	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
 	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
-	"k8s.io/apimachinery/pkg/fields"
 	"k8s.io/apimachinery/pkg/types"
 	"k8s.io/client-go/transport"
 	"sigs.k8s.io/controller-runtime/pkg/builder"
@@ -38,7 +37,6 @@ import (
 	"sigs.k8s.io/controller-runtime/pkg/manager"
 	"sigs.k8s.io/controller-runtime/pkg/manager/signals"
 	"sigs.k8s.io/controller-runtime/pkg/reconcile"
-	"sigs.k8s.io/controller-runtime/pkg/source"
 	"sigs.k8s.io/yaml"
 	"tailscale.com/client/tailscale"
 	"tailscale.com/hostinfo"
@@ -48,6 +46,7 @@ import (
 	"tailscale.com/types/logger"
 	"tailscale.com/types/opt"
 	"tailscale.com/util/dnsname"
+	"tailscale.com/version"
 )
 
 func main() {
@@ -64,6 +63,7 @@ func main() {
 		clientIDPath       = defaultEnv("CLIENT_ID_FILE", "")
 		clientSecretPath   = defaultEnv("CLIENT_SECRET_FILE", "")
 		image              = defaultEnv("PROXY_IMAGE", "tailscale/tailscale:latest")
+		priorityClassName  = defaultEnv("PROXY_PRIORITY_CLASS_NAME", "")
 		tags               = defaultEnv("PROXY_TAGS", "tag:k8s")
 		shouldRunAuthProxy = defaultBool("AUTH_PROXY", false)
 	)
@@ -183,32 +183,33 @@ waitOnline:
 	// the cache that sits a few layers below the builder stuff, which will
 	// implicitly filter what parts of the world the builder code gets to see at
 	// all.
-	nsFilter := cache.ObjectSelector{
-		Field: fields.SelectorFromSet(fields.Set{"metadata.namespace": tsNamespace}),
+	nsFilter := cache.ByObject{
+		Field: client.InNamespace(tsNamespace).AsSelector(),
 	}
 	restConfig := config.GetConfigOrDie()
 	mgr, err := manager.New(restConfig, manager.Options{
-		NewCache: cache.BuilderWithOptions(cache.Options{
-			SelectorsByObject: map[client.Object]cache.ObjectSelector{
+		Cache: cache.Options{
+			ByObject: map[client.Object]cache.ByObject{
 				&corev1.Secret{}:      nsFilter,
 				&appsv1.StatefulSet{}: nsFilter,
 			},
-		}),
+		},
 	})
 	if err != nil {
 		startlog.Fatalf("could not create manager: %v", err)
 	}
 
 	sr := &ServiceReconciler{
-		Client:            mgr.GetClient(),
-		tsClient:          tsClient,
-		defaultTags:       strings.Split(tags, ","),
-		operatorNamespace: tsNamespace,
-		proxyImage:        image,
-		logger:            zlog.Named("service-reconciler"),
+		Client:                 mgr.GetClient(),
+		tsClient:               tsClient,
+		defaultTags:            strings.Split(tags, ","),
+		operatorNamespace:      tsNamespace,
+		proxyImage:             image,
+		proxyPriorityClassName: priorityClassName,
+		logger:                 zlog.Named("service-reconciler"),
 	}
 
-	reconcileFilter := handler.EnqueueRequestsFromMapFunc(func(o client.Object) []reconcile.Request {
+	reconcileFilter := handler.EnqueueRequestsFromMapFunc(func(_ context.Context, o client.Object) []reconcile.Request {
 		ls := o.GetLabels()
 		if ls[LabelManaged] != "true" {
 			return nil
@@ -228,14 +229,14 @@ waitOnline:
 	err = builder.
 		ControllerManagedBy(mgr).
 		For(&corev1.Service{}).
-		Watches(&source.Kind{Type: &appsv1.StatefulSet{}}, reconcileFilter).
-		Watches(&source.Kind{Type: &corev1.Secret{}}, reconcileFilter).
+		Watches(&appsv1.StatefulSet{}, reconcileFilter).
+		Watches(&corev1.Secret{}, reconcileFilter).
 		Complete(sr)
 	if err != nil {
 		startlog.Fatalf("could not create controller: %v", err)
 	}
 
-	startlog.Infof("Startup complete, operator running")
+	startlog.Infof("Startup complete, operator running, version: %s", version.Long())
 	if shouldRunAuthProxy {
 		cfg, err := restConfig.TransportConfig()
 		if err != nil {
@@ -278,11 +279,12 @@ const (
 // ServiceReconciler is a simple ControllerManagedBy example implementation.
 type ServiceReconciler struct {
 	client.Client
-	tsClient          tsClient
-	defaultTags       []string
-	operatorNamespace string
-	proxyImage        string
-	logger            *zap.SugaredLogger
+	tsClient               tsClient
+	defaultTags            []string
+	operatorNamespace      string
+	proxyImage             string
+	proxyPriorityClassName string
+	logger                 *zap.SugaredLogger
 }
 
 type tsClient interface {
@@ -566,6 +568,9 @@ func (a *ServiceReconciler) getDeviceInfo(ctx context.Context, svc *corev1.Servi
 	if err != nil {
 		return "", "", err
 	}
+	if sec == nil {
+		return "", "", nil
+	}
 	id = string(sec.Data["device_id"])
 	if id == "" {
 		return "", "", nil
@@ -589,6 +594,7 @@ func (a *ServiceReconciler) newAuthKey(ctx context.Context, tags []string) (stri
 			},
 		},
 	}
+
 	key, _, err := a.tsClient.CreateKey(ctx, caps)
 	if err != nil {
 		return "", err
@@ -633,6 +639,7 @@ func (a *ServiceReconciler) reconcileSTS(ctx context.Context, logger *zap.Sugare
 	ss.Spec.Template.ObjectMeta.Labels = map[string]string{
 		"app": string(parentSvc.UID),
 	}
+	ss.Spec.Template.Spec.PriorityClassName = a.proxyPriorityClassName
 	logger.Debugf("reconciling statefulset %s/%s", ss.GetNamespace(), ss.GetName())
 	return createOrUpdate(ctx, a.Client, a.operatorNamespace, &ss, func(s *appsv1.StatefulSet) { s.Spec = ss.Spec })
 }

cmd/k8s-operator/operator_test.go

@@ -64,7 +64,7 @@ func TestLoadBalancerClass(t *testing.T) {
 
 	expectEqual(t, fc, expectedSecret(fullName))
 	expectEqual(t, fc, expectedHeadlessService(shortName))
-	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test"))
+	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test", ""))
 
 	// Normally the Tailscale proxy pod would come up here and write its info
 	// into the secret. Simulate that, then verify reconcile again and verify
@@ -110,6 +110,8 @@ func TestLoadBalancerClass(t *testing.T) {
 	mustUpdate(t, fc, "default", "test", func(s *corev1.Service) {
 		s.Spec.Type = corev1.ServiceTypeClusterIP
 		s.Spec.LoadBalancerClass = nil
+	})
+	mustUpdateStatus(t, fc, "default", "test", func(s *corev1.Service) {
 		// Fake client doesn't automatically delete the LoadBalancer status when
 		// changing away from the LoadBalancer type, we have to do
 		// controller-manager's work by hand.
@@ -185,7 +187,7 @@ func TestAnnotations(t *testing.T) {
 
 	expectEqual(t, fc, expectedSecret(fullName))
 	expectEqual(t, fc, expectedHeadlessService(shortName))
-	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test"))
+	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test", ""))
 	want := &corev1.Service{
 		TypeMeta: metav1.TypeMeta{
 			Kind:       "Service",
@@ -282,7 +284,7 @@ func TestAnnotationIntoLB(t *testing.T) {
 
 	expectEqual(t, fc, expectedSecret(fullName))
 	expectEqual(t, fc, expectedHeadlessService(shortName))
-	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test"))
+	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test", ""))
 
 	// Normally the Tailscale proxy pod would come up here and write its info
 	// into the secret. Simulate that, since it would have normally happened at
@@ -326,7 +328,7 @@ func TestAnnotationIntoLB(t *testing.T) {
 	expectReconciled(t, sr, "default", "test")
 	// None of the proxy machinery should have changed...
 	expectEqual(t, fc, expectedHeadlessService(shortName))
-	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test"))
+	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test", ""))
 	// ... but the service should have a LoadBalancer status.
 
 	want = &corev1.Service{
@@ -398,7 +400,7 @@ func TestLBIntoAnnotation(t *testing.T) {
 
 	expectEqual(t, fc, expectedSecret(fullName))
 	expectEqual(t, fc, expectedHeadlessService(shortName))
-	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test"))
+	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test", ""))
 
 	// Normally the Tailscale proxy pod would come up here and write its info
 	// into the secret. Simulate that, then verify reconcile again and verify
@@ -447,6 +449,8 @@ func TestLBIntoAnnotation(t *testing.T) {
 		}
 		s.Spec.Type = corev1.ServiceTypeClusterIP
 		s.Spec.LoadBalancerClass = nil
+	})
+	mustUpdateStatus(t, fc, "default", "test", func(s *corev1.Service) {
 		// Fake client doesn't automatically delete the LoadBalancer status when
 		// changing away from the LoadBalancer type, we have to do
 		// controller-manager's work by hand.
@@ -455,7 +459,7 @@ func TestLBIntoAnnotation(t *testing.T) {
 	expectReconciled(t, sr, "default", "test")
 
 	expectEqual(t, fc, expectedHeadlessService(shortName))
-	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test"))
+	expectEqual(t, fc, expectedSTS(shortName, fullName, "default-test", ""))
 
 	want = &corev1.Service{
 		TypeMeta: metav1.TypeMeta{
@@ -522,7 +526,7 @@ func TestCustomHostname(t *testing.T) {
 
 	expectEqual(t, fc, expectedSecret(fullName))
 	expectEqual(t, fc, expectedHeadlessService(shortName))
-	expectEqual(t, fc, expectedSTS(shortName, fullName, "reindeer-flotilla"))
+	expectEqual(t, fc, expectedSTS(shortName, fullName, "reindeer-flotilla", ""))
 	want := &corev1.Service{
 		TypeMeta: metav1.TypeMeta{
 			Kind:       "Service",
@@ -581,6 +585,51 @@ func TestCustomHostname(t *testing.T) {
 	expectEqual(t, fc, want)
 }
 
+func TestCustomPriorityClassName(t *testing.T) {
+	fc := fake.NewFakeClient()
+	ft := &fakeTSClient{}
+	zl, err := zap.NewDevelopment()
+	if err != nil {
+		t.Fatal(err)
+	}
+	sr := &ServiceReconciler{
+		Client:                 fc,
+		tsClient:               ft,
+		defaultTags:            []string{"tag:k8s"},
+		operatorNamespace:      "operator-ns",
+		proxyImage:             "tailscale/tailscale",
+		proxyPriorityClassName: "tailscale-critical",
+		logger:                 zl.Sugar(),
+	}
+
+	// Create a service that we should manage, and check that the initial round
+	// of objects looks right.
+	mustCreate(t, fc, &corev1.Service{
+		ObjectMeta: metav1.ObjectMeta{
+			Name:      "test",
+			Namespace: "default",
+			// The apiserver is supposed to set the UID, but the fake client
+			// doesn't. So, set it explicitly because other code later depends
+			// on it being set.
+			UID: types.UID("1234-UID"),
+			Annotations: map[string]string{
+				"tailscale.com/expose":   "true",
+				"tailscale.com/hostname": "custom-priority-class-name",
+			},
+		},
+		Spec: corev1.ServiceSpec{
+			ClusterIP: "10.20.30.40",
+			Type:      corev1.ServiceTypeClusterIP,
+		},
+	})
+
+	expectReconciled(t, sr, "default", "test")
+
+	fullName, shortName := findGenName(t, fc, "default", "test")
+
+	expectEqual(t, fc, expectedSTS(shortName, fullName, "custom-priority-class-name", "tailscale-critical"))
+}
+
 func expectedSecret(name string) *corev1.Secret {
 	return &corev1.Secret{
 		TypeMeta: metav1.TypeMeta{
@@ -629,7 +678,7 @@ func expectedHeadlessService(name string) *corev1.Service {
 	}
 }
 
-func expectedSTS(stsName, secretName, hostname string) *appsv1.StatefulSet {
+func expectedSTS(stsName, secretName, hostname, priorityClassName string) *appsv1.StatefulSet {
 	return &appsv1.StatefulSet{
 		TypeMeta: metav1.TypeMeta{
 			Kind:       "StatefulSet",
@@ -658,6 +707,7 @@ func expectedSTS(stsName, secretName, hostname string) *appsv1.StatefulSet {
 				},
 				Spec: corev1.PodSpec{
 					ServiceAccountName: "proxies",
+					PriorityClassName:  priorityClassName,
 					InitContainers: []corev1.Container{
 						{
 							Name:    "sysctler",
@@ -731,6 +781,21 @@ func mustUpdate[T any, O ptrObject[T]](t *testing.T, client client.Client, ns, n
 	}
 }
 
+func mustUpdateStatus[T any, O ptrObject[T]](t *testing.T, client client.Client, ns, name string, update func(O)) {
+	t.Helper()
+	obj := O(new(T))
+	if err := client.Get(context.Background(), types.NamespacedName{
+		Name:      name,
+		Namespace: ns,
+	}, obj); err != nil {
+		t.Fatalf("getting %q: %v", name, err)
+	}
+	update(obj)
+	if err := client.Status().Update(context.Background(), obj); err != nil {
+		t.Fatalf("updating %q: %v", name, err)
+	}
+}
+
 func expectEqual[T any, O ptrObject[T]](t *testing.T, client client.Client, want O) {
 	t.Helper()
 	got := O(new(T))
@@ -814,7 +879,6 @@ func (c *fakeTSClient) CreateKey(ctx context.Context, caps tailscale.KeyCapabili
 	k := &tailscale.Key{
 		ID:           "key",
 		Created:      time.Now(),
-		Expires:      time.Now().Add(24 * time.Hour),
 		Capabilities: caps,
 	}
 	return "secret-authkey", k, nil

cmd/sniproxy/sniproxy.go

@@ -18,6 +18,7 @@ import (
 	"golang.org/x/net/dns/dnsmessage"
 	"inet.af/tcpproxy"
 	"tailscale.com/client/tailscale"
+	"tailscale.com/hostinfo"
 	"tailscale.com/net/netutil"
 	"tailscale.com/tsnet"
 	"tailscale.com/types/nettype"
@@ -36,6 +37,8 @@ func main() {
 		log.Fatal("no ports")
 	}
 
+	hostinfo.SetApp("sniproxy")
+
 	var s server
 	defer s.ts.Close()
 

cmd/tailscale/cli/diag.go

@@ -66,7 +66,7 @@ func isSystemdSystem() bool {
 		return false
 	}
 	switch distro.Get() {
-	case distro.QNAP, distro.Gokrazy, distro.Synology:
+	case distro.QNAP, distro.Gokrazy, distro.Synology, distro.Unraid:
 		return false
 	}
 	_, err := exec.LookPath("systemctl")

cmd/tailscale/cli/serve.go

@@ -16,6 +16,7 @@ import (
 	"path"
 	"path/filepath"
 	"reflect"
+	"runtime"
 	"sort"
 	"strconv"
 	"strings"
@@ -39,6 +40,7 @@ serve https:<port> <mount-point> <source> [off]
   serve tcp:<port> tcp://localhost:<local-port> [off]
   serve tls-terminated-tcp:<port> tcp://localhost:<local-port> [off]
   serve status [--json]
+  serve reset
 `),
 		LongHelp: strings.TrimSpace(`
 *** BETA; all of this is subject to change ***
@@ -86,6 +88,13 @@ EXAMPLES
 				}),
 				UsageFunc: usageFunc,
 			},
+			{
+				Name:      "reset",
+				Exec:      e.runServeReset,
+				ShortHelp: "reset current serve/funnel config",
+				FlagSet:   e.newFlags("serve-reset", nil),
+				UsageFunc: usageFunc,
+			},
 		},
 	}
 }
@@ -412,6 +421,7 @@ func cleanMountPoint(mount string) (string, error) {
 	if mount == "" {
 		return "", errors.New("mount point cannot be empty")
 	}
+	mount = cleanMinGWPathConversionIfNeeded(mount)
 	if !strings.HasPrefix(mount, "/") {
 		mount = "/" + mount
 	}
@@ -422,6 +432,26 @@ func cleanMountPoint(mount string) (string, error) {
 	return "", fmt.Errorf("invalid mount point %q", mount)
 }
 
+// cleanMinGWPathConversionIfNeeded strips the EXEPATH prefix from the given
+// path if the path is a MinGW(ish) (Windows) shell arg.
+//
+// MinGW(ish) (Windows) shells perform POSIX-to-Windows path conversion
+// converting the leading "/" of any shell arg to the EXEPATH, which mangles the
+// mount point. Strip the EXEPATH prefix if it exists. #7963
+//
+// "/C:/Program Files/Git/foo" -> "/foo"
+func cleanMinGWPathConversionIfNeeded(path string) string {
+	// Only do this on Windows.
+	if runtime.GOOS != "windows" {
+		return path
+	}
+	if _, ok := os.LookupEnv("MSYSTEM"); ok {
+		exepath := filepath.ToSlash(os.Getenv("EXEPATH"))
+		path = strings.TrimPrefix(path, exepath)
+	}
+	return path
+}
+
 func expandProxyTarget(source string) (string, error) {
 	if !strings.Contains(source, "://") {
 		source = "http://" + source
@@ -683,3 +713,15 @@ func elipticallyTruncate(s string, max int) string {
 	}
 	return s[:max-3] + "..."
 }
+
+// runServeReset clears out the current serve config.
+//
+// Usage:
+//   - tailscale serve reset
+func (e *serveEnv) runServeReset(ctx context.Context, args []string) error {
+	if len(args) != 0 {
+		return flag.ErrHelp
+	}
+	sc := new(ipn.ServeConfig)
+	return e.lc.SetServeConfig(ctx, sc)
+}

cmd/tailscale/cli/serve_test.go

@@ -224,7 +224,10 @@ func TestServeConfigMutations(t *testing.T) {
 		command: cmd("https:443 bar https://127.0.0.1:8443"),
 		want:    nil, // nothing to save
 	})
-	add(step{reset: true})
+	add(step{ // try resetting using reset command
+		command: cmd("reset"),
+		want:    &ipn.ServeConfig{},
+	})
 	add(step{
 		command: cmd("https:443 / https+insecure://127.0.0.1:3001"),
 		want: &ipn.ServeConfig{

cmd/tailscale/cli/up.go

@@ -13,11 +13,13 @@ import (
 	"fmt"
 	"log"
 	"net/netip"
+	"net/url"
 	"os"
 	"os/signal"
 	"reflect"
 	"runtime"
 	"sort"
+	"strconv"
 	"strings"
 	"sync"
 	"syscall"
@@ -26,6 +28,9 @@ import (
 	shellquote "github.com/kballard/go-shellquote"
 	"github.com/peterbourgon/ff/v3/ffcli"
 	qrcode "github.com/skip2/go-qrcode"
+	"golang.org/x/oauth2/clientcredentials"
+	"tailscale.com/client/tailscale"
+	"tailscale.com/envknob"
 	"tailscale.com/health/healthmsg"
 	"tailscale.com/ipn"
 	"tailscale.com/ipn/ipnstate"
@@ -663,6 +668,10 @@ func runUp(ctx context.Context, cmd string, args []string, upArgs upArgsT) (retE
 		if err != nil {
 			return err
 		}
+		authKey, err = resolveAuthKey(ctx, authKey, upArgs.advertiseTags)
+		if err != nil {
+			return err
+		}
 		if err := localClient.Start(ctx, ipn.Options{
 			AuthKey:     authKey,
 			UpdatePrefs: prefs,
@@ -1102,3 +1111,96 @@ func anyPeerAdvertisingRoutes(st *ipnstate.Status) bool {
 	}
 	return false
 }
+
+func init() {
+	// Required to use our client API. We're fine with the instability since the
+	// client lives in the same repo as this code.
+	tailscale.I_Acknowledge_This_API_Is_Unstable = true
+}
+
+// resolveAuthKey either returns v unchanged (in the common case) or, if it
+// starts with "tskey-client-" (as Tailscale OAuth secrets do) parses it like
+//
+//	tskey-client-xxxx[?ephemeral=false&bar&preauthorized=BOOL&baseURL=...]
+//
+// and does the OAuth2 dance to get and return an authkey. The "ephemeral"
+// property defaults to true if unspecified. The "preauthorized" defaults to
+// false. The "baseURL" defaults to https://api.tailscale.com.
+// The passed in tags are required, and must be non-empty. These will be
+// set on the authkey generated by the OAuth2 dance.
+func resolveAuthKey(ctx context.Context, v, tags string) (string, error) {
+	if !strings.HasPrefix(v, "tskey-client-") {
+		return v, nil
+	}
+	if !envknob.Bool("TS_EXPERIMENT_OAUTH_AUTHKEY") {
+		return "", errors.New("oauth authkeys are in experimental status")
+	}
+	if tags == "" {
+		return "", errors.New("oauth authkeys require --advertise-tags")
+	}
+
+	clientSecret, named, _ := strings.Cut(v, "?")
+	attrs, err := url.ParseQuery(named)
+	if err != nil {
+		return "", err
+	}
+	for k := range attrs {
+		switch k {
+		case "ephemeral", "preauthorized", "baseURL":
+		default:
+			return "", fmt.Errorf("unknown attribute %q", k)
+		}
+	}
+	getBool := func(name string, def bool) (bool, error) {
+		v := attrs.Get(name)
+		if v == "" {
+			return def, nil
+		}
+		ret, err := strconv.ParseBool(v)
+		if err != nil {
+			return false, fmt.Errorf("invalid attribute boolean attribute %s value %q", name, v)
+		}
+		return ret, nil
+	}
+	ephemeral, err := getBool("ephemeral", true)
+	if err != nil {
+		return "", err
+	}
+	preauth, err := getBool("preauthorized", false)
+	if err != nil {
+		return "", err
+	}
+
+	baseURL := "https://api.tailscale.com"
+	if v := attrs.Get("baseURL"); v != "" {
+		baseURL = v
+	}
+
+	credentials := clientcredentials.Config{
+		ClientID:     "some-client-id", // ignored
+		ClientSecret: clientSecret,
+		TokenURL:     baseURL + "/api/v2/oauth/token",
+		Scopes:       []string{"device"},
+	}
+
+	tsClient := tailscale.NewClient("-", nil)
+	tsClient.HTTPClient = credentials.Client(ctx)
+	tsClient.BaseURL = baseURL
+
+	caps := tailscale.KeyCapabilities{
+		Devices: tailscale.KeyDeviceCapabilities{
+			Create: tailscale.KeyDeviceCreateCapabilities{
+				Reusable:      false,
+				Ephemeral:     ephemeral,
+				Preauthorized: preauth,
+				Tags:          strings.Split(tags, ","),
+			},
+		},
+	}
+
+	authkey, _, err := tsClient.CreateKey(ctx, caps)
+	if err != nil {
+		return "", err
+	}
+	return authkey, nil
+}

cmd/tailscale/cli/web.go

@@ -61,6 +61,8 @@ type tmplData struct {
 	TUNMode           bool
 	IsSynology        bool
 	DSMVersion        int // 6 or 7, if IsSynology=true
+	IsUnraid          bool
+	UnraidToken       string
 	IPNVersion        string
 }
 
@@ -441,6 +443,8 @@ func webHandler(w http.ResponseWriter, r *http.Request) {
 		TUNMode:      st.TUN,
 		IsSynology:   distro.Get() == distro.Synology || envknob.Bool("TS_FAKE_SYNOLOGY"),
 		DSMVersion:   distro.DSMVersion(),
+		IsUnraid:     distro.Get() == distro.Unraid,
+		UnraidToken:  os.Getenv("UNRAID_CSRF_TOKEN"),
 		IPNVersion:   versionShort,
 	}
 	exitNodeRouteV4 := netip.MustParsePrefix("0.0.0.0/0")

cmd/tailscale/cli/web.html

@@ -116,10 +116,12 @@
 	<a class="text-xs text-gray-500 hover:text-gray-600" href="{{ .LicensesURL }}">Open Source Licenses</a>
 </footer>
 <script>(function () {
-const advertiseExitNode = {{.AdvertiseExitNode}};
+const advertiseExitNode = {{ .AdvertiseExitNode }};
+const isUnraid = {{ .IsUnraid }};
+const unraidCsrfToken = "{{ .UnraidToken }}";
 let fetchingUrl = false;
 var data = {
-	AdvertiseRoutes: "{{.AdvertiseRoutes}}",
+	AdvertiseRoutes: "{{ .AdvertiseRoutes }}",
 	AdvertiseExitNode: advertiseExitNode,
 	Reauthenticate: false,
 	ForceLogout: false
@@ -141,15 +143,27 @@ function postData(e) {
 	}
 	const nextUrl = new URL(window.location);
 	nextUrl.search = nextParams.toString()
-	const url = nextUrl.toString();
 
+	let body = JSON.stringify(data);
+	let contentType = "application/json";
+
+	if (isUnraid) {
+		const params = new URLSearchParams();
+		params.append("csrf_token", unraidCsrfToken);
+		params.append("ts_data", JSON.stringify(data));
+
+		body = params.toString();
+		contentType = "application/x-www-form-urlencoded;charset=UTF-8";
+	}
+
+	const url = nextUrl.toString();
 	fetch(url, {
 		method: "POST",
 		headers: {
 			"Accept": "application/json",
-			"Content-Type": "application/json",
+			"Content-Type": contentType,
 		},
-		body: JSON.stringify(data)
+		body: body
 	}).then(res => res.json()).then(res => {
 		fetchingUrl = false;
 		const err = res["error"];
@@ -158,7 +172,11 @@ function postData(e) {
 		}
 		const url = res["url"];
 		if (url) {
-			document.location.href = url;
+			if(isUnraid) {
+				window.open(url, "_blank");
+			} else {
+				document.location.href = url;
+			}
 		} else {
 			location.reload();
 		}

cmd/tailscale/depaware.txt

@@ -3,7 +3,9 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
         filippo.io/edwards25519                                      from github.com/hdevalence/ed25519consensus
         filippo.io/edwards25519/field                                from filippo.io/edwards25519
    W 💣 github.com/Microsoft/go-winio                                from tailscale.com/safesocket
+   W 💣 github.com/Microsoft/go-winio/internal/fs                    from github.com/Microsoft/go-winio
    W 💣 github.com/Microsoft/go-winio/internal/socket                from github.com/Microsoft/go-winio
+   W    github.com/Microsoft/go-winio/internal/stringbuffer          from github.com/Microsoft/go-winio/internal/fs
    W    github.com/Microsoft/go-winio/pkg/guid                       from github.com/Microsoft/go-winio+
    W 💣 github.com/alexbrainman/sspi                                 from github.com/alexbrainman/sspi/negotiate+
    W    github.com/alexbrainman/sspi/internal/common                 from github.com/alexbrainman/sspi/negotiate
@@ -152,9 +154,12 @@ tailscale.com/cmd/tailscale dependencies: (generated by github.com/tailscale/dep
         golang.org/x/net/icmp                                        from tailscale.com/net/ping
         golang.org/x/net/idna                                        from golang.org/x/net/http/httpguts+
         golang.org/x/net/ipv4                                        from golang.org/x/net/icmp+
-        golang.org/x/net/ipv6                                        from golang.org/x/net/icmp
+        golang.org/x/net/ipv6                                        from golang.org/x/net/icmp+
         golang.org/x/net/proxy                                       from tailscale.com/net/netns
    D    golang.org/x/net/route                                       from net+
+        golang.org/x/oauth2                                          from golang.org/x/oauth2/clientcredentials
+        golang.org/x/oauth2/clientcredentials                        from tailscale.com/cmd/tailscale/cli
+        golang.org/x/oauth2/internal                                 from golang.org/x/oauth2+
         golang.org/x/sync/errgroup                                   from tailscale.com/derp+
         golang.org/x/sys/cpu                                         from golang.org/x/crypto/blake2b+
   LD    golang.org/x/sys/unix                                        from tailscale.com/net/netns+

cmd/tailscaled/depaware.txt

@@ -3,7 +3,9 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
         filippo.io/edwards25519                                      from github.com/hdevalence/ed25519consensus
         filippo.io/edwards25519/field                                from filippo.io/edwards25519
    W 💣 github.com/Microsoft/go-winio                                from tailscale.com/safesocket
+   W 💣 github.com/Microsoft/go-winio/internal/fs                    from github.com/Microsoft/go-winio
    W 💣 github.com/Microsoft/go-winio/internal/socket                from github.com/Microsoft/go-winio
+   W    github.com/Microsoft/go-winio/internal/stringbuffer          from github.com/Microsoft/go-winio/internal/fs
    W    github.com/Microsoft/go-winio/pkg/guid                       from github.com/Microsoft/go-winio+
    W 💣 github.com/alexbrainman/sspi                                 from github.com/alexbrainman/sspi/internal/common+
    W    github.com/alexbrainman/sspi/internal/common                 from github.com/alexbrainman/sspi/negotiate
@@ -12,7 +14,7 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
    L    github.com/aws/aws-sdk-go-v2                                 from github.com/aws/aws-sdk-go-v2/internal/ini
    L    github.com/aws/aws-sdk-go-v2/aws                             from github.com/aws/aws-sdk-go-v2/aws/middleware+
    L    github.com/aws/aws-sdk-go-v2/aws/arn                         from tailscale.com/ipn/store/awsstore
-   L    github.com/aws/aws-sdk-go-v2/aws/defaults                    from github.com/aws/aws-sdk-go-v2/service/ssm
+   L    github.com/aws/aws-sdk-go-v2/aws/defaults                    from github.com/aws/aws-sdk-go-v2/service/ssm+
    L    github.com/aws/aws-sdk-go-v2/aws/middleware                  from github.com/aws/aws-sdk-go-v2/aws/retry+
    L    github.com/aws/aws-sdk-go-v2/aws/protocol/query              from github.com/aws/aws-sdk-go-v2/service/sts
    L    github.com/aws/aws-sdk-go-v2/aws/protocol/restjson           from github.com/aws/aws-sdk-go-v2/service/ssm+
@@ -38,6 +40,7 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
    L    github.com/aws/aws-sdk-go-v2/internal/rand                   from github.com/aws/aws-sdk-go-v2/aws+
    L    github.com/aws/aws-sdk-go-v2/internal/sdk                    from github.com/aws/aws-sdk-go-v2/aws+
    L    github.com/aws/aws-sdk-go-v2/internal/sdkio                  from github.com/aws/aws-sdk-go-v2/credentials/processcreds
+   L    github.com/aws/aws-sdk-go-v2/internal/shareddefaults         from github.com/aws/aws-sdk-go-v2/config+
    L    github.com/aws/aws-sdk-go-v2/internal/strings                from github.com/aws/aws-sdk-go-v2/aws/signer/internal/v4
    L    github.com/aws/aws-sdk-go-v2/internal/sync/singleflight      from github.com/aws/aws-sdk-go-v2/aws
    L    github.com/aws/aws-sdk-go-v2/internal/timeconv               from github.com/aws/aws-sdk-go-v2/aws/retry
@@ -48,16 +51,19 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
    L    github.com/aws/aws-sdk-go-v2/service/sso                     from github.com/aws/aws-sdk-go-v2/config+
    L    github.com/aws/aws-sdk-go-v2/service/sso/internal/endpoints  from github.com/aws/aws-sdk-go-v2/service/sso
    L    github.com/aws/aws-sdk-go-v2/service/sso/types               from github.com/aws/aws-sdk-go-v2/service/sso
+   L    github.com/aws/aws-sdk-go-v2/service/ssooidc                 from github.com/aws/aws-sdk-go-v2/config+
+   L    github.com/aws/aws-sdk-go-v2/service/ssooidc/internal/endpoints from github.com/aws/aws-sdk-go-v2/service/ssooidc
+   L    github.com/aws/aws-sdk-go-v2/service/ssooidc/types           from github.com/aws/aws-sdk-go-v2/service/ssooidc
    L    github.com/aws/aws-sdk-go-v2/service/sts                     from github.com/aws/aws-sdk-go-v2/config+
    L    github.com/aws/aws-sdk-go-v2/service/sts/internal/endpoints  from github.com/aws/aws-sdk-go-v2/service/sts
    L    github.com/aws/aws-sdk-go-v2/service/sts/types               from github.com/aws/aws-sdk-go-v2/credentials/stscreds+
    L    github.com/aws/smithy-go                                     from github.com/aws/aws-sdk-go-v2/aws/protocol/restjson+
-   L    github.com/aws/smithy-go/auth/bearer                         from github.com/aws/aws-sdk-go-v2/aws
+   L    github.com/aws/smithy-go/auth/bearer                         from github.com/aws/aws-sdk-go-v2/aws+
    L    github.com/aws/smithy-go/context                             from github.com/aws/smithy-go/auth/bearer
    L    github.com/aws/smithy-go/document                            from github.com/aws/aws-sdk-go-v2/service/ssm+
    L    github.com/aws/smithy-go/encoding                            from github.com/aws/smithy-go/encoding/json+
    L    github.com/aws/smithy-go/encoding/httpbinding                from github.com/aws/aws-sdk-go-v2/aws/protocol/query+
-   L    github.com/aws/smithy-go/encoding/json                       from github.com/aws/aws-sdk-go-v2/service/ssm
+   L    github.com/aws/smithy-go/encoding/json                       from github.com/aws/aws-sdk-go-v2/service/ssm+
    L    github.com/aws/smithy-go/encoding/xml                        from github.com/aws/aws-sdk-go-v2/service/sts
    L    github.com/aws/smithy-go/internal/sync/singleflight          from github.com/aws/smithy-go/auth/bearer
    L    github.com/aws/smithy-go/io                                  from github.com/aws/aws-sdk-go-v2/feature/ec2/imds+
@@ -73,6 +79,7 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
   LD 💣 github.com/creack/pty                                        from tailscale.com/ssh/tailssh
    W 💣 github.com/dblohm7/wingoes                                   from github.com/dblohm7/wingoes/com
    W 💣 github.com/dblohm7/wingoes/com                               from tailscale.com/cmd/tailscaled
+   W    github.com/dblohm7/wingoes/internal                          from github.com/dblohm7/wingoes/com
         github.com/fxamacker/cbor/v2                                 from tailscale.com/tka
    W 💣 github.com/go-ole/go-ole                                     from github.com/go-ole/go-ole/oleutil+
    W 💣 github.com/go-ole/go-ole/oleutil                             from tailscale.com/wgengine/winnet
@@ -93,7 +100,7 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
         github.com/klauspost/compress/flate                          from nhooyr.io/websocket
         github.com/klauspost/compress/fse                            from github.com/klauspost/compress/huff0
         github.com/klauspost/compress/huff0                          from github.com/klauspost/compress/zstd
-        github.com/klauspost/compress/internal/cpuinfo               from github.com/klauspost/compress/zstd
+        github.com/klauspost/compress/internal/cpuinfo               from github.com/klauspost/compress/zstd+
         github.com/klauspost/compress/internal/snapref               from github.com/klauspost/compress/zstd
         github.com/klauspost/compress/zstd                           from tailscale.com/smallzstd
         github.com/klauspost/compress/zstd/internal/xxhash           from github.com/klauspost/compress/zstd
@@ -105,12 +112,17 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
    L    github.com/mdlayher/sdnotify                                 from tailscale.com/util/systemd
    L 💣 github.com/mdlayher/socket                                   from github.com/mdlayher/netlink
      💣 github.com/mitchellh/go-ps                                   from tailscale.com/safesocket
+   L    github.com/pierrec/lz4/v4                                    from github.com/u-root/uio/uio
+   L    github.com/pierrec/lz4/v4/internal/lz4block                  from github.com/pierrec/lz4/v4+
+   L    github.com/pierrec/lz4/v4/internal/lz4errors                 from github.com/pierrec/lz4/v4+
+   L    github.com/pierrec/lz4/v4/internal/lz4stream                 from github.com/pierrec/lz4/v4
+   L    github.com/pierrec/lz4/v4/internal/xxh32                     from github.com/pierrec/lz4/v4/internal/lz4stream
    W    github.com/pkg/errors                                        from github.com/tailscale/certstore
   LD    github.com/pkg/sftp                                          from tailscale.com/ssh/tailssh
   LD    github.com/pkg/sftp/internal/encoding/ssh/filexfer           from github.com/pkg/sftp
    W 💣 github.com/tailscale/certstore                               from tailscale.com/control/controlclient
   LD    github.com/tailscale/golang-x-crypto/chacha20                from github.com/tailscale/golang-x-crypto/ssh
-  LD 💣 github.com/tailscale/golang-x-crypto/internal/subtle         from github.com/tailscale/golang-x-crypto/chacha20
+  LD 💣 github.com/tailscale/golang-x-crypto/internal/alias          from github.com/tailscale/golang-x-crypto/chacha20
   LD    github.com/tailscale/golang-x-crypto/ssh                     from tailscale.com/ipn/ipnlocal+
   LD    github.com/tailscale/golang-x-crypto/ssh/internal/bcrypt_pbkdf from github.com/tailscale/golang-x-crypto/ssh
         github.com/tailscale/goupnp                                  from github.com/tailscale/goupnp/dcps/internetgateway2+
@@ -245,7 +257,7 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
      💣 tailscale.com/net/netstat                                    from tailscale.com/ipn/ipnauth+
         tailscale.com/net/netutil                                    from tailscale.com/ipn/ipnlocal+
         tailscale.com/net/packet                                     from tailscale.com/net/tstun+
-        tailscale.com/net/ping                                       from tailscale.com/net/netcheck
+        tailscale.com/net/ping                                       from tailscale.com/net/netcheck+
         tailscale.com/net/portmapper                                 from tailscale.com/net/netcheck+
         tailscale.com/net/proxymux                                   from tailscale.com/cmd/tailscaled
         tailscale.com/net/routetable                                 from tailscale.com/doctor/routetable
@@ -270,7 +282,8 @@ tailscale.com/cmd/tailscaled dependencies: (generated by github.com/tailscale/de
   LD    tailscale.com/tempfork/gliderlabs/ssh                        from tailscale.com/ssh/tailssh
         tailscale.com/tka                                            from tailscale.com/ipn/ipnlocal+
    W    tailscale.com/tsconst                                        from tailscale.com/net/interfaces
-        tailscale.com/tstime                                         from tailscale.com/wgengine/magicsock
+        tailscale.com/tsd                                            from tailscale.com/cmd/tailscaled+
+        tailscale.com/tstime                                         from tailscale.com/wgengine/magicsock+
      💣 tailscale.com/tstime/mono                                    from tailscale.com/net/tstun+
         tailscale.com/tstime/rate                                    from tailscale.com/wgengine/filter+
         tailscale.com/tsweb/varz                                     from tailscale.com/cmd/tailscaled

cmd/tailscaled/taildrop.go

@@ -18,7 +18,7 @@ import (
 func configureTaildrop(logf logger.Logf, lb *ipnlocal.LocalBackend) {
 	dg := distro.Get()
 	switch dg {
-	case distro.Synology, distro.TrueNAS, distro.QNAP:
+	case distro.Synology, distro.TrueNAS, distro.QNAP, distro.Unraid:
 		// See if they have a "Taildrop" share.
 		// See https://github.com/tailscale/tailscale/issues/2179#issuecomment-982821319
 		path, err := findTaildropDir(dg)
@@ -42,6 +42,8 @@ func findTaildropDir(dg distro.Distro) (string, error) {
 		return findTrueNASTaildropDir(name)
 	case distro.QNAP:
 		return findQnapTaildropDir(name)
+	case distro.Unraid:
+		return findUnraidTaildropDir(name)
 	}
 	return "", fmt.Errorf("%s is an unsupported distro for Taildrop dir", dg)
 }
@@ -103,3 +105,25 @@ func findQnapTaildropDir(name string) (string, error) {
 	}
 	return "", fmt.Errorf("shared folder %q not found", name)
 }
+
+// findUnraidTaildropDir looks for a directory linked at
+// /var/lib/tailscale/Taildrop. This is a symlink to the
+// path specified by the user in the Unraid Web UI
+func findUnraidTaildropDir(name string) (string, error) {
+	dir := fmt.Sprintf("/var/lib/tailscale/%s", name)
+	_, err := os.Stat(dir)
+	if err != nil {
+		return "", fmt.Errorf("symlink %q not found", name)
+	}
+
+	fullpath, err := filepath.EvalSymlinks(dir)
+	if err != nil {
+		return "", fmt.Errorf("symlink %q to shared folder not valid", name)
+	}
+
+	fi, err := os.Stat(fullpath)
+	if err == nil && fi.IsDir() {
+		return dir, nil // return the symlink
+	}
+	return "", fmt.Errorf("shared folder %q not found", name)
+}

cmd/tailscaled/tailscaled.go

@@ -50,6 +50,7 @@ import (
 	"tailscale.com/safesocket"
 	"tailscale.com/smallzstd"
 	"tailscale.com/syncs"
+	"tailscale.com/tsd"
 	"tailscale.com/tsweb/varz"
 	"tailscale.com/types/flagtype"
 	"tailscale.com/types/logger"
@@ -330,12 +331,16 @@ var debugMux *http.ServeMux
 
 func run() error {
 	var logf logger.Logf = log.Printf
+
+	sys := new(tsd.System)
+
 	netMon, err := netmon.New(func(format string, args ...any) {
 		logf(format, args...)
 	})
 	if err != nil {
 		return fmt.Errorf("netmon.New: %w", err)
 	}
+	sys.Set(netMon)
 
 	pol := logpolicy.New(logtail.CollectionNode, netMon)
 	pol.SetVerbosityLevel(args.verbose)
@@ -386,10 +391,10 @@ func run() error {
 		debugMux = newDebugMux()
 	}
 
-	return startIPNServer(context.Background(), logf, pol.PublicID, netMon)
+	return startIPNServer(context.Background(), logf, pol.PublicID, sys)
 }
 
-func startIPNServer(ctx context.Context, logf logger.Logf, logID logid.PublicID, netMon *netmon.Monitor) error {
+func startIPNServer(ctx context.Context, logf logger.Logf, logID logid.PublicID, sys *tsd.System) error {
 	ln, err := safesocket.Listen(args.socketpath)
 	if err != nil {
 		return fmt.Errorf("safesocket.Listen: %v", err)
@@ -415,7 +420,7 @@ func startIPNServer(ctx context.Context, logf logger.Logf, logID logid.PublicID,
 		}
 	}()
 
-	srv := ipnserver.New(logf, logID, netMon)
+	srv := ipnserver.New(logf, logID, sys.NetMon.Get())
 	if debugMux != nil {
 		debugMux.HandleFunc("/debug/ipn", srv.ServeHTMLStatus)
 	}
@@ -433,7 +438,7 @@ func startIPNServer(ctx context.Context, logf logger.Logf, logID logid.PublicID,
 				return
 			}
 		}
-		lb, err := getLocalBackend(ctx, logf, logID, netMon)
+		lb, err := getLocalBackend(ctx, logf, logID, sys)
 		if err == nil {
 			logf("got LocalBackend in %v", time.Since(t0).Round(time.Millisecond))
 			srv.SetLocalBackend(lb)
@@ -457,31 +462,28 @@ func startIPNServer(ctx context.Context, logf logger.Logf, logID logid.PublicID,
 	return nil
 }
 
-func getLocalBackend(ctx context.Context, logf logger.Logf, logID logid.PublicID, netMon *netmon.Monitor) (_ *ipnlocal.LocalBackend, retErr error) {
+func getLocalBackend(ctx context.Context, logf logger.Logf, logID logid.PublicID, sys *tsd.System) (_ *ipnlocal.LocalBackend, retErr error) {
 	if logPol != nil {
-		logPol.Logtail.SetNetMon(netMon)
+		logPol.Logtail.SetNetMon(sys.NetMon.Get())
 	}
 
 	socksListener, httpProxyListener := mustStartProxyListeners(args.socksAddr, args.httpProxyAddr)
 
 	dialer := &tsdial.Dialer{Logf: logf} // mutated below (before used)
-	e, onlyNetstack, err := createEngine(logf, netMon, dialer)
+	sys.Set(dialer)
+
+	onlyNetstack, err := createEngine(logf, sys)
 	if err != nil {
 		return nil, fmt.Errorf("createEngine: %w", err)
 	}
-	if _, ok := e.(wgengine.ResolvingEngine).GetResolver(); !ok {
-		panic("internal error: exit node resolver not wired up")
-	}
 	if debugMux != nil {
-		if ig, ok := e.(wgengine.InternalsGetter); ok {
-			if _, mc, _, ok := ig.GetInternals(); ok {
-				debugMux.HandleFunc("/debug/magicsock", mc.ServeHTTPDebug)
-			}
+		if ms, ok := sys.MagicSock.GetOK(); ok {
+			debugMux.HandleFunc("/debug/magicsock", ms.ServeHTTPDebug)
 		}
 		go runDebugServer(debugMux, args.debug)
 	}
 
-	ns, err := newNetstack(logf, dialer, e)
+	ns, err := newNetstack(logf, sys)
 	if err != nil {
 		return nil, fmt.Errorf("newNetstack: %w", err)
 	}
@@ -489,6 +491,7 @@ func getLocalBackend(ctx context.Context, logf logger.Logf, logID logid.PublicID
 	ns.ProcessSubnets = onlyNetstack || handleSubnetsInNetstack()
 
 	if onlyNetstack {
+		e := sys.Engine.Get()
 		dialer.UseNetstackForIP = func(ip netip.Addr) bool {
 			_, ok := e.PeerForIP(ip)
 			return ok
@@ -519,16 +522,15 @@ func getLocalBackend(ctx context.Context, logf logger.Logf, logID logid.PublicID
 		tshttpproxy.SetSelfProxy(addrs...)
 	}
 
-	e = wgengine.NewWatchdog(e)
-
 	opts := ipnServerOpts()
 
 	store, err := store.New(logf, statePathOrDefault())
 	if err != nil {
 		return nil, fmt.Errorf("store.New: %w", err)
 	}
+	sys.Set(store)
 
-	lb, err := ipnlocal.NewLocalBackend(logf, logID, store, dialer, e, opts.LoginFlags)
+	lb, err := ipnlocal.NewLocalBackend(logf, logID, sys, opts.LoginFlags)
 	if err != nil {
 		return nil, fmt.Errorf("ipnlocal.NewLocalBackend: %w", err)
 	}
@@ -554,21 +556,21 @@ func getLocalBackend(ctx context.Context, logf logger.Logf, logID logid.PublicID
 //
 // onlyNetstack is true if the user has explicitly requested that we use netstack
 // for all networking.
-func createEngine(logf logger.Logf, netMon *netmon.Monitor, dialer *tsdial.Dialer) (e wgengine.Engine, onlyNetstack bool, err error) {
+func createEngine(logf logger.Logf, sys *tsd.System) (onlyNetstack bool, err error) {
 	if args.tunname == "" {
-		return nil, false, errors.New("no --tun value specified")
+		return false, errors.New("no --tun value specified")
 	}
 	var errs []error
 	for _, name := range strings.Split(args.tunname, ",") {
 		logf("wgengine.NewUserspaceEngine(tun %q) ...", name)
-		e, onlyNetstack, err = tryEngine(logf, netMon, dialer, name)
+		onlyNetstack, err = tryEngine(logf, sys, name)
 		if err == nil {
-			return e, onlyNetstack, nil
+			return onlyNetstack, nil
 		}
 		logf("wgengine.NewUserspaceEngine(tun %q) error: %v", name, err)
 		errs = append(errs, err)
 	}
-	return nil, false, multierr.New(errs...)
+	return false, multierr.New(errs...)
 }
 
 // handleSubnetsInNetstack reports whether netstack should handle subnet routers
@@ -593,21 +595,23 @@ func handleSubnetsInNetstack() bool {
 
 var tstunNew = tstun.New
 
-func tryEngine(logf logger.Logf, netMon *netmon.Monitor, dialer *tsdial.Dialer, name string) (e wgengine.Engine, onlyNetstack bool, err error) {
+func tryEngine(logf logger.Logf, sys *tsd.System, name string) (onlyNetstack bool, err error) {
 	conf := wgengine.Config{
-		ListenPort: args.port,
-		NetMon:     netMon,
-		Dialer:     dialer,
+		ListenPort:   args.port,
+		NetMon:       sys.NetMon.Get(),
+		Dialer:       sys.Dialer.Get(),
+		SetSubsystem: sys.Set,
 	}
 
 	onlyNetstack = name == "userspace-networking"
+	netstackSubnetRouter := onlyNetstack // but mutated later on some platforms
 	netns.SetEnabled(!onlyNetstack)
 
 	if args.birdSocketPath != "" && createBIRDClient != nil {
 		log.Printf("Connecting to BIRD at %s ...", args.birdSocketPath)
 		conf.BIRDClient, err = createBIRDClient(args.birdSocketPath)
 		if err != nil {
-			return nil, false, fmt.Errorf("createBIRDClient: %w", err)
+			return false, fmt.Errorf("createBIRDClient: %w", err)
 		}
 	}
 	if onlyNetstack {
@@ -620,44 +624,55 @@ func tryEngine(logf logger.Logf, netMon *netmon.Monitor, dialer *tsdial.Dialer,
 			// TODO(bradfitz): add a Synology-specific DNS manager.
 			conf.DNS, err = dns.NewOSConfigurator(logf, "") // empty interface name
 			if err != nil {
-				return nil, false, fmt.Errorf("dns.NewOSConfigurator: %w", err)
+				return false, fmt.Errorf("dns.NewOSConfigurator: %w", err)
 			}
 		}
 	} else {
 		dev, devName, err := tstunNew(logf, name)
 		if err != nil {
 			tstun.Diagnose(logf, name, err)
-			return nil, false, fmt.Errorf("tstun.New(%q): %w", name, err)
+			return false, fmt.Errorf("tstun.New(%q): %w", name, err)
 		}
 		conf.Tun = dev
 		if strings.HasPrefix(name, "tap:") {
 			conf.IsTAP = true
 			e, err := wgengine.NewUserspaceEngine(logf, conf)
-			return e, false, err
+			if err != nil {
+				return false, err
+			}
+			sys.Set(e)
+			return false, err
 		}
 
-		r, err := router.New(logf, dev, netMon)
+		r, err := router.New(logf, dev, sys.NetMon.Get())
 		if err != nil {
 			dev.Close()
-			return nil, false, fmt.Errorf("creating router: %w", err)
+			return false, fmt.Errorf("creating router: %w", err)
 		}
+
 		d, err := dns.NewOSConfigurator(logf, devName)
 		if err != nil {
 			dev.Close()
 			r.Close()
-			return nil, false, fmt.Errorf("dns.NewOSConfigurator: %w", err)
+			return false, fmt.Errorf("dns.NewOSConfigurator: %w", err)
 		}
 		conf.DNS = d
 		conf.Router = r
 		if handleSubnetsInNetstack() {
 			conf.Router = netstack.NewSubnetRouterWrapper(conf.Router)
+			netstackSubnetRouter = true
 		}
+		sys.Set(conf.Router)
 	}
-	e, err = wgengine.NewUserspaceEngine(logf, conf)
+	e, err := wgengine.NewUserspaceEngine(logf, conf)
 	if err != nil {
-		return nil, onlyNetstack, err
+		return onlyNetstack, err
 	}
-	return e, onlyNetstack, nil
+	e = wgengine.NewWatchdog(e)
+	sys.Set(e)
+	sys.NetstackRouter.Set(netstackSubnetRouter)
+
+	return onlyNetstack, nil
 }
 
 func newDebugMux() *http.ServeMux {
@@ -687,12 +702,8 @@ func runDebugServer(mux *http.ServeMux, addr string) {
 	}
 }
 
-func newNetstack(logf logger.Logf, dialer *tsdial.Dialer, e wgengine.Engine) (*netstack.Impl, error) {
-	tunDev, magicConn, dns, ok := e.(wgengine.InternalsGetter).GetInternals()
-	if !ok {
-		return nil, fmt.Errorf("%T is not a wgengine.InternalsGetter", e)
-	}
-	return netstack.Create(logf, tunDev, e, magicConn, dialer, dns)
+func newNetstack(logf logger.Logf, sys *tsd.System) (*netstack.Impl, error) {
+	return netstack.Create(logf, sys.Tun.Get(), sys.Engine.Get(), sys.MagicSock.Get(), sys.Dialer.Get(), sys.DNSManager.Get())
 }
 
 // mustStartProxyListeners creates listeners for local SOCKS and HTTP

cmd/tailscaled/tailscaled_windows.go

@@ -47,6 +47,7 @@ import (
 	"tailscale.com/net/dns"
 	"tailscale.com/net/netmon"
 	"tailscale.com/net/tstun"
+	"tailscale.com/tsd"
 	"tailscale.com/types/logger"
 	"tailscale.com/types/logid"
 	"tailscale.com/util/winutil"
@@ -125,6 +126,10 @@ var syslogf logger.Logf = logger.Discard
 // At this point we're still the parent process that
 // Windows started.
 func runWindowsService(pol *logpolicy.Policy) error {
+	go func() {
+		winutil.LogSupportInfo(log.Printf)
+	}()
+
 	if winutil.GetPolicyInteger("LogSCMInteractions", 0) != 0 {
 		syslog, err := eventlog.Open(serviceName)
 		if err == nil {
@@ -292,13 +297,15 @@ func beWindowsSubprocess() bool {
 		}
 	}()
 
+	sys := new(tsd.System)
 	netMon, err := netmon.New(log.Printf)
 	if err != nil {
-		log.Printf("Could not create netMon: %v", err)
-		netMon = nil
+		log.Fatalf("Could not create netMon: %v", err)
 	}
+	sys.Set(netMon)
+
 	publicLogID, _ := logid.ParsePublicID(logID)
-	err = startIPNServer(ctx, log.Printf, publicLogID, netMon)
+	err = startIPNServer(ctx, log.Printf, publicLogID, sys)
 	if err != nil {
 		log.Fatalf("ipnserver: %v", err)
 	}

cmd/tsconnect/wasm/wasm_js.go

@@ -37,6 +37,7 @@ import (
 	"tailscale.com/safesocket"
 	"tailscale.com/smallzstd"
 	"tailscale.com/tailcfg"
+	"tailscale.com/tsd"
 	"tailscale.com/wgengine"
 	"tailscale.com/wgengine/netstack"
 	"tailscale.com/words"
@@ -96,19 +97,19 @@ func newIPN(jsConfig js.Value) map[string]any {
 	logtail := logtail.NewLogger(c, log.Printf)
 	logf := logtail.Logf
 
+	sys := new(tsd.System)
+	sys.Set(store)
 	dialer := &tsdial.Dialer{Logf: logf}
 	eng, err := wgengine.NewUserspaceEngine(logf, wgengine.Config{
-		Dialer: dialer,
+		Dialer:       dialer,
+		SetSubsystem: sys.Set,
 	})
 	if err != nil {
 		log.Fatal(err)
 	}
+	sys.Set(eng)
 
-	tunDev, magicConn, dnsManager, ok := eng.(wgengine.InternalsGetter).GetInternals()
-	if !ok {
-		log.Fatalf("%T is not a wgengine.InternalsGetter", eng)
-	}
-	ns, err := netstack.Create(logf, tunDev, eng, magicConn, dialer, dnsManager)
+	ns, err := netstack.Create(logf, sys.Tun.Get(), eng, sys.MagicSock.Get(), dialer, sys.DNSManager.Get())
 	if err != nil {
 		log.Fatalf("netstack.Create: %v", err)
 	}
@@ -121,10 +122,11 @@ func newIPN(jsConfig js.Value) map[string]any {
 	dialer.NetstackDialTCP = func(ctx context.Context, dst netip.AddrPort) (net.Conn, error) {
 		return ns.DialContextTCP(ctx, dst)
 	}
+	sys.NetstackRouter.Set(true)
 
 	logid := lpc.PublicID
 	srv := ipnserver.New(logf, logid, nil /* no netMon */)
-	lb, err := ipnlocal.NewLocalBackend(logf, logid, store, dialer, eng, controlclient.LoginEphemeral)
+	lb, err := ipnlocal.NewLocalBackend(logf, logid, sys, controlclient.LoginEphemeral)
 	if err != nil {
 		log.Fatalf("ipnlocal.NewLocalBackend: %v", err)
 	}

cmd/viewer/tests/tests.go

@@ -9,7 +9,7 @@ import (
 	"net/netip"
 )
 
-//go:generate go run tailscale.com/cmd/viewer --type=StructWithPtrs,StructWithoutPtrs,Map,StructWithSlices,OnlyGetClone --clone-only-type=OnlyGetClone
+//go:generate go run tailscale.com/cmd/viewer --type=StructWithPtrs,StructWithoutPtrs,Map,StructWithSlices,OnlyGetClone,StructWithEmbedded --clone-only-type=OnlyGetClone
 
 type StructWithoutPtrs struct {
 	Int int
@@ -61,3 +61,8 @@ type StructWithSlices struct {
 type OnlyGetClone struct {
 	SinViewerPorFavor bool
 }
+
+type StructWithEmbedded struct {
+	A *StructWithPtrs
+	StructWithSlices
+}

cmd/viewer/tests/tests_clone.go

@@ -211,3 +211,22 @@ func (src *OnlyGetClone) Clone() *OnlyGetClone {
 var _OnlyGetCloneCloneNeedsRegeneration = OnlyGetClone(struct {
 	SinViewerPorFavor bool
 }{})
+
+// Clone makes a deep copy of StructWithEmbedded.
+// The result aliases no memory with the original.
+func (src *StructWithEmbedded) Clone() *StructWithEmbedded {
+	if src == nil {
+		return nil
+	}
+	dst := new(StructWithEmbedded)
+	*dst = *src
+	dst.A = src.A.Clone()
+	dst.StructWithSlices = *src.StructWithSlices.Clone()
+	return dst
+}
+
+// A compilation failure here means this code must be regenerated, with the command at the top of this file.
+var _StructWithEmbeddedCloneNeedsRegeneration = StructWithEmbedded(struct {
+	A *StructWithPtrs
+	StructWithSlices
+}{})

cmd/viewer/tests/tests_view.go

@@ -14,7 +14,7 @@ import (
 	"tailscale.com/types/views"
 )
 
-//go:generate go run tailscale.com/cmd/cloner  -clonefunc=false -type=StructWithPtrs,StructWithoutPtrs,Map,StructWithSlices,OnlyGetClone
+//go:generate go run tailscale.com/cmd/cloner  -clonefunc=false -type=StructWithPtrs,StructWithoutPtrs,Map,StructWithSlices,OnlyGetClone,StructWithEmbedded
 
 // View returns a readonly view of StructWithPtrs.
 func (p *StructWithPtrs) View() StructWithPtrsView {
@@ -325,3 +325,59 @@ var _StructWithSlicesViewNeedsRegeneration = StructWithSlices(struct {
 	Prefixes       []netip.Prefix
 	Data           []byte
 }{})
+
+// View returns a readonly view of StructWithEmbedded.
+func (p *StructWithEmbedded) View() StructWithEmbeddedView {
+	return StructWithEmbeddedView{ж: p}
+}
+
+// StructWithEmbeddedView provides a read-only view over StructWithEmbedded.
+//
+// Its methods should only be called if `Valid()` returns true.
+type StructWithEmbeddedView struct {
+	// ж is the underlying mutable value, named with a hard-to-type
+	// character that looks pointy like a pointer.
+	// It is named distinctively to make you think of how dangerous it is to escape
+	// to callers. You must not let callers be able to mutate it.
+	ж *StructWithEmbedded
+}
+
+// Valid reports whether underlying value is non-nil.
+func (v StructWithEmbeddedView) Valid() bool { return v.ж != nil }
+
+// AsStruct returns a clone of the underlying value which aliases no memory with
+// the original.
+func (v StructWithEmbeddedView) AsStruct() *StructWithEmbedded {
+	if v.ж == nil {
+		return nil
+	}
+	return v.ж.Clone()
+}
+
+func (v StructWithEmbeddedView) MarshalJSON() ([]byte, error) { return json.Marshal(v.ж) }
+
+func (v *StructWithEmbeddedView) UnmarshalJSON(b []byte) error {
+	if v.ж != nil {
+		return errors.New("already initialized")
+	}
+	if len(b) == 0 {
+		return nil
+	}
+	var x StructWithEmbedded
+	if err := json.Unmarshal(b, &x); err != nil {
+		return err
+	}
+	v.ж = &x
+	return nil
+}
+
+func (v StructWithEmbeddedView) A() StructWithPtrsView { return v.ж.A.View() }
+func (v StructWithEmbeddedView) StructWithSlices() StructWithSlicesView {
+	return v.ж.StructWithSlices.View()
+}
+
+// A compilation failure here means this code must be regenerated, with the command at the top of this file.
+var _StructWithEmbeddedViewNeedsRegeneration = StructWithEmbedded(struct {
+	A *StructWithPtrs
+	StructWithSlices
+}{})

control/controlclient/direct.go

@@ -61,6 +61,7 @@ import (
 type Direct struct {
 	httpc                  *http.Client // HTTP client used to talk to tailcontrol
 	dialer                 *tsdial.Dialer
+	dnsCache               *dnscache.Resolver
 	serverURL              string // URL of the tailcontrol server
 	timeNow                func() time.Time
 	lastPrintMap           time.Time
@@ -199,6 +200,14 @@ func NewDirect(opts Options) (*Direct, error) {
 		opts.Logf = log.Printf
 	}
 
+	dnsCache := &dnscache.Resolver{
+		Forward:          dnscache.Get().Forward, // use default cache's forwarder
+		UseLastGood:      true,
+		LookupIPFallback: dnsfallback.MakeLookupFunc(opts.Logf, opts.NetMon),
+		Logf:             opts.Logf,
+		NetMon:           opts.NetMon,
+	}
+
 	httpc := opts.HTTPTestClient
 	if httpc == nil && runtime.GOOS == "js" {
 		// In js/wasm, net/http.Transport (as of Go 1.18) will
@@ -208,13 +217,6 @@ func NewDirect(opts Options) (*Direct, error) {
 		httpc = http.DefaultClient
 	}
 	if httpc == nil {
-		dnsCache := &dnscache.Resolver{
-			Forward:          dnscache.Get().Forward, // use default cache's forwarder
-			UseLastGood:      true,
-			LookupIPFallback: dnsfallback.MakeLookupFunc(opts.Logf, opts.NetMon),
-			Logf:             opts.Logf,
-			NetMon:           opts.NetMon,
-		}
 		tr := http.DefaultTransport.(*http.Transport).Clone()
 		tr.Proxy = tshttpproxy.ProxyFromEnvironment
 		tshttpproxy.SetTransportGetProxyConnectHeader(tr)
@@ -250,6 +252,7 @@ func NewDirect(opts Options) (*Direct, error) {
 		onControlTime:          opts.OnControlTime,
 		c2nHandler:             opts.C2NHandler,
 		dialer:                 opts.Dialer,
+		dnsCache:               dnsCache,
 		dialPlan:               opts.DialPlan,
 	}
 	if opts.Hostinfo == nil {
@@ -1509,7 +1512,16 @@ func (c *Direct) getNoiseClient() (*NoiseClient, error) {
 			return nil, err
 		}
 		c.logf("creating new noise client")
-		nc, err := NewNoiseClient(k, serverNoiseKey, c.serverURL, c.dialer, c.logf, c.netMon, dp)
+		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,
+		})
 		if err != nil {
 			return nil, err
 		}

control/controlclient/noise.go

@@ -19,6 +19,7 @@ import (
 	"golang.org/x/net/http2"
 	"tailscale.com/control/controlbase"
 	"tailscale.com/control/controlhttp"
+	"tailscale.com/net/dnscache"
 	"tailscale.com/net/netmon"
 	"tailscale.com/net/tsdial"
 	"tailscale.com/tailcfg"
@@ -158,6 +159,7 @@ type NoiseClient struct {
 	sfDial singleflight.Group[struct{}, *noiseConn]
 
 	dialer       *tsdial.Dialer
+	dnsCache     *dnscache.Resolver
 	privKey      key.MachinePrivate
 	serverPubKey key.MachinePublic
 	host         string // the host part of serverURL
@@ -179,13 +181,39 @@ type NoiseClient struct {
 	connPool map[int]*noiseConn // active connections not yet closed; see noiseConn.Close
 }
 
+// NoiseOpts contains options for the NewNoiseClient function. All fields are
+// required unless otherwise specified.
+type NoiseOpts struct {
+	// PrivKey is this node's private key.
+	PrivKey key.MachinePrivate
+	// ServerPubKey is the public key of the server.
+	ServerPubKey key.MachinePublic
+	// ServerURL is the URL of the server to connect to.
+	ServerURL string
+	// Dialer's SystemDial function is used to connect to the server.
+	Dialer *tsdial.Dialer
+	// DNSCache is the caching Resolver to use to connect to the server.
+	//
+	// This field can be nil.
+	DNSCache *dnscache.Resolver
+	// Logf is the log function to use. This field can be nil.
+	Logf logger.Logf
+	// NetMon is the network monitor that, if set, will be used to get the
+	// network interface state. This field can be nil; if so, the current
+	// state will be looked up dynamically.
+	NetMon *netmon.Monitor
+	// DialPlan, if set, is a function that should return an explicit plan
+	// on how to connect to the server.
+	DialPlan func() *tailcfg.ControlDialPlan
+}
+
 // NewNoiseClient returns a new noiseClient for the provided server and machine key.
 // serverURL is of the form https://<host>:<port> (no trailing slash).
 //
 // netMon may be nil, if non-nil it's used to do faster interface lookups.
 // dialPlan may be nil
-func NewNoiseClient(privKey key.MachinePrivate, serverPubKey key.MachinePublic, serverURL string, dialer *tsdial.Dialer, logf logger.Logf, netMon *netmon.Monitor, dialPlan func() *tailcfg.ControlDialPlan) (*NoiseClient, error) {
-	u, err := url.Parse(serverURL)
+func NewNoiseClient(opts NoiseOpts) (*NoiseClient, error) {
+	u, err := url.Parse(opts.ServerURL)
 	if err != nil {
 		return nil, err
 	}
@@ -205,16 +233,18 @@ func NewNoiseClient(privKey key.MachinePrivate, serverPubKey key.MachinePublic,
 		httpPort = "80"
 		httpsPort = "443"
 	}
+
 	np := &NoiseClient{
-		serverPubKey: serverPubKey,
-		privKey:      privKey,
+		serverPubKey: opts.ServerPubKey,
+		privKey:      opts.PrivKey,
 		host:         u.Hostname(),
 		httpPort:     httpPort,
 		httpsPort:    httpsPort,
-		dialer:       dialer,
-		dialPlan:     dialPlan,
-		logf:         logf,
-		netMon:       netMon,
+		dialer:       opts.Dialer,
+		dnsCache:     opts.DNSCache,
+		dialPlan:     opts.DialPlan,
+		logf:         opts.Logf,
+		netMon:       opts.NetMon,
 	}
 
 	// Create the HTTP/2 Transport using a net/http.Transport
@@ -373,6 +403,7 @@ func (nc *NoiseClient) dial() (*noiseConn, error) {
 		ControlKey:      nc.serverPubKey,
 		ProtocolVersion: uint16(tailcfg.CurrentCapabilityVersion),
 		Dialer:          nc.dialer.SystemDial,
+		DNSCache:        nc.dnsCache,
 		DialPlan:        dialPlan,
 		Logf:            nc.logf,
 		NetMon:          nc.netMon,

control/controlclient/noise_test.go

@@ -74,7 +74,12 @@ func (tt noiseClientTest) run(t *testing.T) {
 	defer hs.Close()
 
 	dialer := new(tsdial.Dialer)
-	nc, err := NewNoiseClient(clientPrivate, serverPrivate.Public(), hs.URL, dialer, nil, nil, nil)
+	nc, err := NewNoiseClient(NoiseOpts{
+		PrivKey:      clientPrivate,
+		ServerPubKey: serverPrivate.Public(),
+		ServerURL:    hs.URL,
+		Dialer:       dialer,
+	})
 	if err != nil {
 		t.Fatal(err)
 	}

control/controlhttp/client.go

@@ -374,6 +374,22 @@ func (a *Dialer) dialURL(ctx context.Context, u *url.URL, addr netip.Addr) (*Cli
 	}, nil
 }
 
+// resolver returns a.DNSCache if non-nil or a new *dnscache.Resolver
+// otherwise.
+func (a *Dialer) resolver() *dnscache.Resolver {
+	if a.DNSCache != nil {
+		return a.DNSCache
+	}
+
+	return &dnscache.Resolver{
+		Forward:          dnscache.Get().Forward,
+		LookupIPFallback: dnsfallback.MakeLookupFunc(a.logf, a.NetMon),
+		UseLastGood:      true,
+		Logf:             a.Logf, // not a.logf method; we want to propagate nil-ness
+		NetMon:           a.NetMon,
+	}
+}
+
 // tryURLUpgrade connects to u, and tries to upgrade it to a net.Conn. If addr
 // is valid, then no DNS is used and the connection will be made to the
 // provided address.
@@ -392,13 +408,7 @@ func (a *Dialer) tryURLUpgrade(ctx context.Context, u *url.URL, addr netip.Addr,
 			NetMon:                 a.NetMon,
 		}
 	} else {
-		dns = &dnscache.Resolver{
-			Forward:          dnscache.Get().Forward,
-			LookupIPFallback: dnsfallback.MakeLookupFunc(a.logf, a.NetMon),
-			UseLastGood:      true,
-			Logf:             a.Logf, // not a.logf method; we want to propagate nil-ness
-			NetMon:           a.NetMon,
-		}
+		dns = a.resolver()
 	}
 
 	var dialer dnscache.DialContextFunc

control/controlhttp/constants.go

@@ -67,6 +67,11 @@ type Dialer struct {
 	// If not specified, this defaults to net.Dialer.DialContext.
 	Dialer dnscache.DialContextFunc
 
+	// DNSCache is the caching Resolver used by this Dialer.
+	//
+	// If not specified, a new Resolver is created per attempt.
+	DNSCache *dnscache.Resolver
+
 	// Logf, if set, is a logging function to use; if unset, logs are
 	// dropped.
 	Logf logger.Logf

derp/README.md

@@ -0,0 +1,61 @@
+# DERP
+
+This directory (and subdirectories) contain the DERP code. The server itself is
+in `../cmd/derper`.
+
+DERP is a packet relay system (client and servers) where peers are addressed
+using WireGuard public keys instead of IP addresses.
+
+It relays two types of packets:
+
+* "Disco" discovery messages (see `../disco`) as the a side channel during [NAT
+  traversal](https://tailscale.com/blog/how-nat-traversal-works/).
+
+* Encrypted WireGuard packets as the fallback of last resort when UDP is blocked
+  or NAT traversal fails.
+
+## DERP Map
+
+Each client receives a "[DERP
+Map](https://pkg.go.dev/tailscale.com/tailcfg#DERPMap)" from the coordination
+server describing the DERP servers the client should try to use.
+
+The client picks its home "DERP home" based on latency. This is done to keep
+costs low by avoid using cloud load balancers (pricey) or anycast, which would
+necessarily require server-side routing between DERP regions.
+
+Clients pick their DERP home and report it to the coordination server which
+shares it to all the peers in the tailnet. When a peer wants to send a packet
+and it doesn't already have a WireGuard session open, it sends disco messages
+(some direct, and some over DERP), trying to do the NAT traversal. The client
+will make connections to multiple DERP regions as needed. Only the DERP home
+region connection needs to be alive forever.
+
+## DERP Regions
+
+Tailscale runs 1 or more DERP nodes (instances of `cmd/derper`) in various
+geographic regions to make sure users have low latency to their DERP home.
+
+Regions generally have multiple nodes per region "meshed" (routing to each
+other) together for redundancy: it allows for cloud failures or upgrades without
+kicking users out to a higher latency region. Instead, clients will reconnect to
+the next node in the region. Each node in the region is required to to be meshed
+with every other node in the region and forward packets to the other nodes in
+the region. Packets are forwarded only one hop within the region. There is no
+routing between regions. The assumption is that the mesh TCP connections are
+over a VPC that's very fast, low latency, and not charged per byte. The
+coordination server assigns the list of nodes in a region as a function of the
+tailnet, so all nodes within a tailnet should generally be on the same node and
+not require forwarding. Only after a failure do clients of a particular tailnet
+get split between nodes in a region and require inter-node forwarding. But over
+time it balances back out. There's also an admin-only DERP frame type to force
+close the TCP connection of a particular client to force them to reconnect to
+their primary if the operator wants to force things to balance out sooner.
+(Using the `(*derphttp.Client).ClosePeer` method, as used by Tailscale's
+internal rarely-used `cmd/derpprune` maintenance tool)
+
+We generally run a minimum of three nodes in a region not for quorum reasons
+(there's no voting) but just because two is too uncomfortably few for cascading
+failure reasons: if you're running two nodes at 51% load (CPU, memory, etc) and
+then one fails, that makes the second one fail. With three or more nodes, you
+can run each node a bit hotter.

derp/derp_server.go

@@ -498,7 +498,7 @@ func (s *Server) registerClient(c *sclient) {
 	switch set := set.(type) {
 	case nil:
 		s.clients[c.key] = singleClient{c}
-		c.debug("register single client")
+		c.debugLogf("register single client")
 	case singleClient:
 		s.dupClientKeys.Add(1)
 		s.dupClientConns.Add(2) // both old and new count
@@ -514,7 +514,7 @@ func (s *Server) registerClient(c *sclient) {
 			},
 			sendHistory: []*sclient{old},
 		}
-		c.debug("register duplicate client")
+		c.debugLogf("register duplicate client")
 	case *dupClientSet:
 		s.dupClientConns.Add(1)     // the gauge
 		s.dupClientConnTotal.Add(1) // the counter
@@ -522,7 +522,7 @@ func (s *Server) registerClient(c *sclient) {
 		set.set[c] = true
 		set.last = c
 		set.sendHistory = append(set.sendHistory, c)
-		c.debug("register another duplicate client")
+		c.debugLogf("register another duplicate client")
 	}
 
 	if _, ok := s.clientsMesh[c.key]; !ok {
@@ -555,7 +555,7 @@ func (s *Server) unregisterClient(c *sclient) {
 	case nil:
 		c.logf("[unexpected]; clients map is empty")
 	case singleClient:
-		c.logf("removed connection")
+		c.debugLogf("removed connection")
 		delete(s.clients, c.key)
 		if v, ok := s.clientsMesh[c.key]; ok && v == nil {
 			delete(s.clientsMesh, c.key)
@@ -563,7 +563,7 @@ func (s *Server) unregisterClient(c *sclient) {
 		}
 		s.broadcastPeerStateChangeLocked(c.key, false)
 	case *dupClientSet:
-		c.debug("removed duplicate client")
+		c.debugLogf("removed duplicate client")
 		if set.removeClient(c) {
 			s.dupClientConns.Add(-1)
 		} else {
@@ -712,9 +712,12 @@ func (s *Server) accept(ctx context.Context, nc Conn, brw *bufio.ReadWriter, rem
 	if clientInfo != nil {
 		c.info = *clientInfo
 		if envknob.Bool("DERP_PROBER_DEBUG_LOGS") && clientInfo.IsProber {
-			c.debugLogging = true
+			c.debug = true
 		}
 	}
+	if s.debug {
+		c.debug = true
+	}
 
 	s.registerClient(c)
 	defer s.unregisterClient(c)
@@ -727,6 +730,12 @@ func (s *Server) accept(ctx context.Context, nc Conn, brw *bufio.ReadWriter, rem
 	return c.run(ctx)
 }
 
+func (s *Server) debugLogf(format string, v ...any) {
+	if s.debug {
+		s.logf(format, v...)
+	}
+}
+
 // for testing
 var (
 	timeSleep = time.Sleep
@@ -744,16 +753,20 @@ func (c *sclient) run(ctx context.Context) error {
 	defer func() {
 		cancelSender()
 		if err := grp.Wait(); err != nil && !c.s.isClosed() {
-			c.logf("sender failed: %v", err)
+			if errors.Is(err, context.Canceled) {
+				c.debugLogf("sender canceled by reader exiting")
+			} else {
+				c.logf("sender failed: %v", err)
+			}
 		}
 	}()
 
 	for {
 		ft, fl, err := readFrameHeader(c.br)
-		c.debug("read frame type %d len %d err %v", ft, fl, err)
+		c.debugLogf("read frame type %d len %d err %v", ft, fl, err)
 		if err != nil {
 			if errors.Is(err, io.EOF) {
-				c.logf("read EOF")
+				c.debugLogf("read EOF")
 				return nil
 			}
 			if c.s.isClosed() {
@@ -910,7 +923,7 @@ func (c *sclient) handleFrameForwardPacket(ft frameType, fl uint32) error {
 		return nil
 	}
 
-	dst.debug("received forwarded packet from %s via %s", srcKey.ShortString(), c.key.ShortString())
+	dst.debugLogf("received forwarded packet from %s via %s", srcKey.ShortString(), c.key.ShortString())
 
 	return c.sendPkt(dst, pkt{
 		bs:         contents,
@@ -960,7 +973,7 @@ func (c *sclient) handleFrameSendPacket(ft frameType, fl uint32) error {
 		if fwd != nil {
 			s.packetsForwardedOut.Add(1)
 			err := fwd.ForwardPacket(c.key, dstKey, contents)
-			c.debug("SendPacket for %s, forwarding via %s: %v", dstKey.ShortString(), fwd, err)
+			c.debugLogf("SendPacket for %s, forwarding via %s: %v", dstKey.ShortString(), fwd, err)
 			if err != nil {
 				// TODO:
 				return nil
@@ -974,10 +987,10 @@ func (c *sclient) handleFrameSendPacket(ft frameType, fl uint32) error {
 			c.requestPeerGoneWriteLimited(dstKey, contents, PeerGoneReasonNotHere)
 		}
 		s.recordDrop(contents, c.key, dstKey, reason)
-		c.debug("SendPacket for %s, dropping with reason=%s", dstKey.ShortString(), reason)
+		c.debugLogf("SendPacket for %s, dropping with reason=%s", dstKey.ShortString(), reason)
 		return nil
 	}
-	c.debug("SendPacket for %s, sending directly", dstKey.ShortString())
+	c.debugLogf("SendPacket for %s, sending directly", dstKey.ShortString())
 
 	p := pkt{
 		bs:         contents,
@@ -987,8 +1000,8 @@ func (c *sclient) handleFrameSendPacket(ft frameType, fl uint32) error {
 	return c.sendPkt(dst, p)
 }
 
-func (c *sclient) debug(format string, v ...any) {
-	if c.debugLogging {
+func (c *sclient) debugLogf(format string, v ...any) {
+	if c.debug {
 		c.logf(format, v...)
 	}
 }
@@ -1011,7 +1024,8 @@ const (
 func (s *Server) recordDrop(packetBytes []byte, srcKey, dstKey key.NodePublic, reason dropReason) {
 	s.packetsDropped.Add(1)
 	s.packetsDroppedReasonCounters[reason].Add(1)
-	if disco.LooksLikeDiscoWrapper(packetBytes) {
+	looksDisco := disco.LooksLikeDiscoWrapper(packetBytes)
+	if looksDisco {
 		s.packetsDroppedTypeDisco.Add(1)
 	} else {
 		s.packetsDroppedTypeOther.Add(1)
@@ -1024,9 +1038,7 @@ func (s *Server) recordDrop(packetBytes []byte, srcKey, dstKey key.NodePublic, r
 		msg := fmt.Sprintf("drop (%s) %s -> %s", srcKey.ShortString(), reason, dstKey.ShortString())
 		s.limitedLogf(msg)
 	}
-	if s.debug {
-		s.logf("dropping packet reason=%s dst=%s disco=%v", reason, dstKey, disco.LooksLikeDiscoWrapper(packetBytes))
-	}
+	s.debugLogf("dropping packet reason=%s dst=%s disco=%v", reason, dstKey, looksDisco)
 }
 
 func (c *sclient) sendPkt(dst *sclient, p pkt) error {
@@ -1044,13 +1056,13 @@ func (c *sclient) sendPkt(dst *sclient, p pkt) error {
 		select {
 		case <-dst.done:
 			s.recordDrop(p.bs, c.key, dstKey, dropReasonGoneDisconnected)
-			dst.debug("sendPkt attempt %d dropped, dst gone", attempt)
+			dst.debugLogf("sendPkt attempt %d dropped, dst gone", attempt)
 			return nil
 		default:
 		}
 		select {
 		case sendQueue <- p:
-			dst.debug("sendPkt attempt %d enqueued", attempt)
+			dst.debugLogf("sendPkt attempt %d enqueued", attempt)
 			return nil
 		default:
 		}
@@ -1066,7 +1078,7 @@ func (c *sclient) sendPkt(dst *sclient, p pkt) error {
 	// contended queue with racing writers. Give up and tail-drop in
 	// this case to keep reader unblocked.
 	s.recordDrop(p.bs, c.key, dstKey, dropReasonQueueTail)
-	dst.debug("sendPkt attempt %d dropped, queue full")
+	dst.debugLogf("sendPkt attempt %d dropped, queue full")
 
 	return nil
 }
@@ -1304,8 +1316,7 @@ type sclient struct {
 	canMesh        bool             // clientInfo had correct mesh token for inter-region routing
 	isDup          atomic.Bool      // whether more than 1 sclient for key is connected
 	isDisabled     atomic.Bool      // whether sends to this peer are disabled due to active/active dups
-
-	debugLogging bool
+	debug          bool             // turn on for verbose logging
 
 	// Owned by run, not thread-safe.
 	br          *bufio.Reader
@@ -1593,7 +1604,7 @@ func (c *sclient) sendPacket(srcKey key.NodePublic, contents []byte) (err error)
 			c.s.packetsSent.Add(1)
 			c.s.bytesSent.Add(int64(len(contents)))
 		}
-		c.debug("sendPacket from %s: %v", srcKey.ShortString(), err)
+		c.debugLogf("sendPacket from %s: %v", srcKey.ShortString(), err)
 	}()
 
 	c.setWriteDeadline()

envknob/envknob.go

@@ -457,13 +457,24 @@ var applyDiskConfigErr error
 // ApplyDiskConfigError returns the most recent result of ApplyDiskConfig.
 func ApplyDiskConfigError() error { return applyDiskConfigErr }
 
-// ApplyDiskConfig returns a platform-specific config file of environment keys/values and
-// applies them. On Linux and Unix operating systems, it's a no-op and always returns nil.
-// If no platform-specific config file is found, it also returns nil.
+// ApplyDiskConfig returns a platform-specific config file of environment
+// keys/values and applies them. On Linux and Unix operating systems, it's a
+// no-op and always returns nil. If no platform-specific config file is found,
+// it also returns nil.
+//
+// It exists primarily for Windows and macOS to make it easy to apply
+// environment variables to a running service in a way similar to modifying
+// /etc/default/tailscaled on Linux.
 //
-// It exists primarily for Windows to make it easy to apply environment variables to
-// a running service in a way similar to modifying /etc/default/tailscaled on Linux.
 // On Windows, you use %ProgramData%\Tailscale\tailscaled-env.txt instead.
+//
+// On macOS, use one of:
+//
+//   - ~/Library/Containers/io.tailscale.ipn.macsys/Data/tailscaled-env.txt
+//     for standalone macOS GUI builds
+//   - ~/Library/Containers/io.tailscale.ipn.macos.network-extension/Data/tailscaled-env.txt
+//     for App Store builds
+//   - /etc/tailscale/tailscaled-env.txt for tailscaled-on-macOS (homebrew, etc)
 func ApplyDiskConfig() (err error) {
 	var f *os.File
 	defer func() {
@@ -512,9 +523,15 @@ func getPlatformEnvFile() string {
 			return "/etc/tailscale/tailscaled-env.txt"
 		}
 	case "darwin":
-		// TODO(bradfitz): figure this out. There are three ways to run
-		// Tailscale on macOS (tailscaled, GUI App Store, GUI System Extension)
-		// and we should deal with all three.
+		if version.IsSandboxedMacOS() { // the two GUI variants (App Store or separate download)
+			// This will be user-visible as ~/Library/Containers/$VARIANT/Data/tailscaled-env.txt
+			// where $VARIANT is "io.tailscale.ipn.macsys" for macsys (downloadable mac GUI builds)
+			// or "io.tailscale.ipn.macos.network-extension" for App Store builds.
+			return filepath.Join(os.Getenv("HOME"), "tailscaled-env.txt")
+		} else {
+			// Open source / homebrew variable, running tailscaled-on-macOS.
+			return "/etc/tailscale/tailscaled-env.txt"
+		}
 	}
 	return ""
 }

flake.nix

@@ -115,4 +115,4 @@
   in
     flake-utils.lib.eachDefaultSystem (system: flakeForSystem nixpkgs system);
 }
-# nix-direnv cache busting line: sha256-lirn07XE3JOS6oiwZBMwxzywkbXHowOJUMWWLrZtccY=
+# nix-direnv cache busting line: sha256-l2uIma2oEdSN0zVo9BOFJF2gC3S60vXwTLVadv8yQPo=

go.mod

@@ -3,98 +3,98 @@ module tailscale.com
 go 1.20
 
 require (
-	filippo.io/mkcert v1.4.3
-	github.com/Microsoft/go-winio v0.6.0
+	filippo.io/mkcert v1.4.4
+	github.com/Microsoft/go-winio v0.6.1
 	github.com/akutz/memconn v0.1.0
 	github.com/alexbrainman/sspi v0.0.0-20210105120005-909beea2cc74
-	github.com/andybalholm/brotli v1.0.3
+	github.com/andybalholm/brotli v1.0.5
 	github.com/anmitsu/go-shlex v0.0.0-20200514113438-38f4b401e2be
-	github.com/aws/aws-sdk-go-v2 v1.17.3
-	github.com/aws/aws-sdk-go-v2/config v1.11.0
-	github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.7.4
-	github.com/aws/aws-sdk-go-v2/service/s3 v1.21.0
-	github.com/aws/aws-sdk-go-v2/service/ssm v1.35.0
+	github.com/aws/aws-sdk-go-v2 v1.18.0
+	github.com/aws/aws-sdk-go-v2/config v1.18.22
+	github.com/aws/aws-sdk-go-v2/feature/s3/manager v1.11.64
+	github.com/aws/aws-sdk-go-v2/service/s3 v1.33.0
+	github.com/aws/aws-sdk-go-v2/service/ssm v1.36.3
 	github.com/coreos/go-iptables v0.6.0
 	github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf
-	github.com/creack/pty v1.1.17
-	github.com/dave/jennifer v1.4.1
-	github.com/dblohm7/wingoes v0.0.0-20221124203957-6ac47ab19aa5
+	github.com/creack/pty v1.1.18
+	github.com/dave/jennifer v1.6.1
+	github.com/dblohm7/wingoes v0.0.0-20230426155039-111c8c3b57c8
 	github.com/dsnet/try v0.0.3
 	github.com/evanw/esbuild v0.14.53
-	github.com/frankban/quicktest v1.14.3
+	github.com/frankban/quicktest v1.14.5
 	github.com/fxamacker/cbor/v2 v2.4.0
-	github.com/go-json-experiment/json v0.0.0-20221017203807-c5ed296b8c92
-	github.com/go-logr/zapr v1.2.3
+	github.com/go-json-experiment/json v0.0.0-20230321051131-ccbac49a6929
+	github.com/go-logr/zapr v1.2.4
 	github.com/go-ole/go-ole v1.2.6
-	github.com/godbus/dbus/v5 v5.0.6
+	github.com/godbus/dbus/v5 v5.1.0
 	github.com/golang/groupcache v0.0.0-20210331224755-41bb18bfe9da
 	github.com/golangci/golangci-lint v1.52.2
 	github.com/google/go-cmp v0.5.9
-	github.com/google/go-containerregistry v0.9.0
+	github.com/google/go-containerregistry v0.14.0
 	github.com/google/nftables v0.1.1-0.20230115205135-9aa6fdf5a28c
 	github.com/google/uuid v1.3.0
 	github.com/goreleaser/nfpm v1.10.3
-	github.com/hdevalence/ed25519consensus v0.0.0-20220222234857-c00d1f31bab3
+	github.com/hdevalence/ed25519consensus v0.1.0
 	github.com/iancoleman/strcase v0.2.0
 	github.com/illarion/gonotify v1.0.1
-	github.com/insomniacslk/dhcp v0.0.0-20221215072855-de60144f33f8
+	github.com/insomniacslk/dhcp v0.0.0-20230407062729-974c6f05fe16
 	github.com/josharian/native v1.1.1-0.20230202152459-5c7d0dd6ab86
-	github.com/jsimonetti/rtnetlink v1.1.2-0.20220408201609-d380b505068b
+	github.com/jsimonetti/rtnetlink v1.3.2
 	github.com/kballard/go-shellquote v0.0.0-20180428030007-95032a82bc51
-	github.com/klauspost/compress v1.15.4
+	github.com/klauspost/compress v1.16.5
 	github.com/kortschak/wol v0.0.0-20200729010619-da482cc4850a
 	github.com/mattn/go-colorable v0.1.13
-	github.com/mattn/go-isatty v0.0.17
-	github.com/mdlayher/genetlink v1.2.0
-	github.com/mdlayher/netlink v1.7.1
+	github.com/mattn/go-isatty v0.0.18
+	github.com/mdlayher/genetlink v1.3.2
+	github.com/mdlayher/netlink v1.7.2
 	github.com/mdlayher/sdnotify v1.0.0
-	github.com/miekg/dns v1.1.43
+	github.com/miekg/dns v1.1.54
 	github.com/mitchellh/go-ps v1.0.0
-	github.com/peterbourgon/ff/v3 v3.1.2
+	github.com/peterbourgon/ff/v3 v3.3.0
 	github.com/pkg/errors v0.9.1
-	github.com/pkg/sftp v1.13.4
-	github.com/prometheus/client_golang v1.14.0
-	github.com/prometheus/common v0.41.0
+	github.com/pkg/sftp v1.13.5
+	github.com/prometheus/client_golang v1.15.1
+	github.com/prometheus/common v0.42.0
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
 	github.com/tailscale/certstore v0.1.1-0.20220316223106-78d6e1c49d8d
 	github.com/tailscale/depaware v0.0.0-20210622194025-720c4b409502
 	github.com/tailscale/goexpect v0.0.0-20210902213824-6e8c725cea41
-	github.com/tailscale/golang-x-crypto v0.0.0-20221102133106-bc99ab8c2d17
+	github.com/tailscale/golang-x-crypto v0.0.0-20221115211329-17a3db2c30d2
 	github.com/tailscale/goupnp v1.0.1-0.20210804011211-c64d0f06ea05
-	github.com/tailscale/hujson v0.0.0-20220630195928-54599719472f
+	github.com/tailscale/hujson v0.0.0-20221223112325-20486734a56a
 	github.com/tailscale/mkctr v0.0.0-20220601142259-c0b937af2e89
 	github.com/tailscale/netlink v1.1.1-0.20211101221916-cabfb018fe85
 	github.com/tailscale/wireguard-go v0.0.0-20230410165232-af172621b4dd
-	github.com/tc-hib/winres v0.1.6
+	github.com/tc-hib/winres v0.2.0
 	github.com/tcnksm/go-httpstat v0.2.0
 	github.com/toqueteos/webbrowser v1.2.0
-	github.com/u-root/u-root v0.9.1-0.20230109201855-948a78c969ad
-	github.com/vishvananda/netlink v1.1.1-0.20211118161826-650dca95af54
+	github.com/u-root/u-root v0.11.0
+	github.com/vishvananda/netlink v1.2.1-beta.2
 	go.uber.org/zap v1.24.0
-	go4.org/mem v0.0.0-20210711025021-927187094b94
-	go4.org/netipx v0.0.0-20220725152314-7e7bdc8411bf
-	golang.org/x/crypto v0.6.0
-	golang.org/x/exp v0.0.0-20221205204356-47842c84f3db
-	golang.org/x/mod v0.9.0
-	golang.org/x/net v0.8.0
-	golang.org/x/oauth2 v0.5.0
-	golang.org/x/sync v0.1.0
-	golang.org/x/sys v0.6.0
-	golang.org/x/term v0.6.0
-	golang.org/x/time v0.0.0-20220609170525-579cf78fd858
-	golang.org/x/tools v0.7.0
+	go4.org/mem v0.0.0-20220726221520-4f986261bf13
+	go4.org/netipx v0.0.0-20230303233057-f1b76eb4bb35
+	golang.org/x/crypto v0.8.0
+	golang.org/x/exp v0.0.0-20230425010034-47ecfdc1ba53
+	golang.org/x/mod v0.10.0
+	golang.org/x/net v0.10.0
+	golang.org/x/oauth2 v0.7.0
+	golang.org/x/sync v0.2.0
+	golang.org/x/sys v0.8.0
+	golang.org/x/term v0.8.0
+	golang.org/x/time v0.3.0
+	golang.org/x/tools v0.9.1
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2
 	golang.zx2c4.com/wireguard/windows v0.5.3
-	gvisor.dev/gvisor v0.0.0-20230328175328-162ed5ef888d
+	gvisor.dev/gvisor v0.0.0-20230504175454-7b0a1988a28f
 	honnef.co/go/tools v0.4.3
 	inet.af/peercred v0.0.0-20210906144145-0893ea02156a
 	inet.af/tcpproxy v0.0.0-20221017015627-91f861402626
-	inet.af/wf v0.0.0-20220728202103-50d96caab2f6
-	k8s.io/api v0.25.0
-	k8s.io/apimachinery v0.25.0
-	k8s.io/client-go v0.25.0
+	inet.af/wf v0.0.0-20221017222439-36129f591884
+	k8s.io/api v0.27.2
+	k8s.io/apimachinery v0.27.2
+	k8s.io/client-go v0.27.2
 	nhooyr.io/websocket v1.8.7
-	sigs.k8s.io/controller-runtime v0.13.1
+	sigs.k8s.io/controller-runtime v0.15.0
 	sigs.k8s.io/yaml v1.3.0
 	software.sslmate.com/src/go-pkcs12 v0.2.0
 )
@@ -102,37 +102,38 @@ require (
 require (
 	4d63.com/gocheckcompilerdirectives v1.2.1 // indirect
 	4d63.com/gochecknoglobals v0.2.1 // indirect
-	filippo.io/edwards25519 v1.0.0-rc.1 // indirect
+	filippo.io/edwards25519 v1.0.0 // indirect
 	github.com/Abirdcfly/dupword v0.0.11 // indirect
 	github.com/Antonboom/errname v0.1.9 // indirect
-	github.com/Antonboom/nilnil v0.1.3 // indirect
+	github.com/Antonboom/nilnil v0.1.4 // indirect
 	github.com/BurntSushi/toml v1.2.1 // indirect
 	github.com/Djarvur/go-err113 v0.1.0 // indirect
 	github.com/GaijinEntertainment/go-exhaustruct/v2 v2.3.0 // indirect
 	github.com/Masterminds/goutils v1.1.1 // indirect
 	github.com/Masterminds/semver v1.5.0 // indirect
-	github.com/Masterminds/semver/v3 v3.1.1 // indirect
+	github.com/Masterminds/semver/v3 v3.2.1 // indirect
 	github.com/Masterminds/sprig v2.22.0+incompatible // indirect
 	github.com/OpenPeeDeeP/depguard v1.1.1 // indirect
-	github.com/ProtonMail/go-crypto v0.0.0-20221026131551-cf6655e29de4 // indirect
-	github.com/PuerkitoBio/purell v1.1.1 // indirect
-	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
-	github.com/acomagu/bufpipe v1.0.3 // indirect
+	github.com/ProtonMail/go-crypto v0.0.0-20230426101702-58e86b294756 // indirect
+	github.com/acomagu/bufpipe v1.0.4 // indirect
 	github.com/alexkohler/prealloc v1.0.0 // indirect
 	github.com/alingse/asasalint v0.0.11 // indirect
 	github.com/ashanbrown/forbidigo v1.5.1 // indirect
 	github.com/ashanbrown/makezero v1.1.1 // indirect
-	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.0.0 // indirect
-	github.com/aws/aws-sdk-go-v2/credentials v1.6.4 // indirect
-	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.8.2 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.27 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.21 // indirect
-	github.com/aws/aws-sdk-go-v2/internal/ini v1.3.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.5.0 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.5.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.9.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sso v1.6.2 // indirect
-	github.com/aws/aws-sdk-go-v2/service/sts v1.11.1 // indirect
+	github.com/aws/aws-sdk-go-v2/aws/protocol/eventstream v1.4.10 // indirect
+	github.com/aws/aws-sdk-go-v2/credentials v1.13.21 // indirect
+	github.com/aws/aws-sdk-go-v2/feature/ec2/imds v1.13.3 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/configsources v1.1.33 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/endpoints/v2 v2.4.27 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/ini v1.3.34 // indirect
+	github.com/aws/aws-sdk-go-v2/internal/v4a v1.0.25 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/accept-encoding v1.9.11 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/checksum v1.1.28 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/presigned-url v1.9.27 // indirect
+	github.com/aws/aws-sdk-go-v2/service/internal/s3shared v1.14.2 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sso v1.12.9 // indirect
+	github.com/aws/aws-sdk-go-v2/service/ssooidc v1.14.9 // indirect
+	github.com/aws/aws-sdk-go-v2/service/sts v1.18.10 // indirect
 	github.com/aws/smithy-go v1.13.5 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/bkielbasa/cyclop v1.2.0 // indirect
@@ -141,41 +142,40 @@ require (
 	github.com/bombsimon/wsl/v3 v3.4.0 // indirect
 	github.com/breml/bidichk v0.2.4 // indirect
 	github.com/breml/errchkjson v0.3.1 // indirect
-	github.com/butuzov/ireturn v0.1.1 // indirect
-	github.com/cavaliercoder/go-cpio v0.0.0-20180626203310-925f9528c45e // indirect
+	github.com/butuzov/ireturn v0.2.0 // indirect
+	github.com/cavaliergopher/cpio v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/charithe/durationcheck v0.0.10 // indirect
 	github.com/chavacava/garif v0.0.0-20230227094218-b8c73b2037b8 // indirect
-	github.com/cloudflare/circl v1.1.0 // indirect
-	github.com/containerd/stargz-snapshotter/estargz v0.11.4 // indirect
+	github.com/cloudflare/circl v1.3.3 // indirect
+	github.com/containerd/stargz-snapshotter/estargz v0.14.3 // indirect
 	github.com/curioswitch/go-reassign v0.2.0 // indirect
 	github.com/daixiang0/gci v0.10.1 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
 	github.com/denis-tingaikin/go-header v0.4.3 // indirect
-	github.com/docker/cli v20.10.16+incompatible // indirect
+	github.com/docker/cli v23.0.5+incompatible // indirect
 	github.com/docker/distribution v2.8.1+incompatible // indirect
-	github.com/docker/docker v20.10.16+incompatible // indirect
-	github.com/docker/docker-credential-helpers v0.6.4 // indirect
-	github.com/emicklei/go-restful/v3 v3.8.0 // indirect
-	github.com/emirpasic/gods v1.12.0 // indirect
+	github.com/docker/docker v23.0.5+incompatible // indirect
+	github.com/docker/docker-credential-helpers v0.7.0 // indirect
+	github.com/emicklei/go-restful/v3 v3.10.2 // indirect
+	github.com/emirpasic/gods v1.18.1 // indirect
 	github.com/esimonov/ifshort v1.0.4 // indirect
 	github.com/ettle/strcase v0.1.1 // indirect
-	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
+	github.com/evanphx/json-patch v5.6.0+incompatible // indirect
 	github.com/evanphx/json-patch/v5 v5.6.0 // indirect
 	github.com/fatih/color v1.15.0 // indirect
 	github.com/fatih/structtag v1.2.0 // indirect
 	github.com/firefart/nonamedreturns v1.0.4 // indirect
-	github.com/fsnotify/fsnotify v1.5.4 // indirect
+	github.com/fsnotify/fsnotify v1.6.0 // indirect
 	github.com/fzipp/gocyclo v0.6.0 // indirect
-	github.com/gliderlabs/ssh v0.3.3 // indirect
-	github.com/go-critic/go-critic v0.7.0 // indirect
+	github.com/go-critic/go-critic v0.8.0 // indirect
 	github.com/go-git/gcfg v1.5.0 // indirect
-	github.com/go-git/go-billy/v5 v5.3.1 // indirect
-	github.com/go-git/go-git/v5 v5.4.2 // indirect
-	github.com/go-logr/logr v1.2.3 // indirect
-	github.com/go-openapi/jsonpointer v0.19.5 // indirect
-	github.com/go-openapi/jsonreference v0.19.5 // indirect
-	github.com/go-openapi/swag v0.19.14 // indirect
+	github.com/go-git/go-billy/v5 v5.4.1 // indirect
+	github.com/go-git/go-git/v5 v5.6.1 // indirect
+	github.com/go-logr/logr v1.2.4 // indirect
+	github.com/go-openapi/jsonpointer v0.19.6 // indirect
+	github.com/go-openapi/jsonreference v0.20.2 // indirect
+	github.com/go-openapi/swag v0.22.3 // indirect
 	github.com/go-toolsmith/astcast v1.1.0 // indirect
 	github.com/go-toolsmith/astcopy v1.1.0 // indirect
 	github.com/go-toolsmith/astequal v1.1.0 // indirect
@@ -187,7 +187,7 @@ require (
 	github.com/gobwas/glob v0.2.3 // indirect
 	github.com/gofrs/flock v0.8.1 // indirect
 	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/golang/protobuf v1.5.3 // indirect
 	github.com/golangci/check v0.0.0-20180506172741-cfe4005ccda2 // indirect
 	github.com/golangci/dupl v0.0.0-20180902072040-3e9179ac440a // indirect
 	github.com/golangci/go-misc v0.0.0-20220329215616-d24fe342adfe // indirect
@@ -197,13 +197,13 @@ require (
 	github.com/golangci/misspell v0.4.0 // indirect
 	github.com/golangci/revgrep v0.0.0-20220804021717-745bb2f7c2e6 // indirect
 	github.com/golangci/unconvert v0.0.0-20180507085042-28b1c447d1f4 // indirect
-	github.com/google/btree v1.0.1 // indirect
-	github.com/google/gnostic v0.5.7-v3refs // indirect
-	github.com/google/gofuzz v1.1.0 // indirect
+	github.com/google/btree v1.1.2 // indirect
+	github.com/google/gnostic v0.6.9 // indirect
+	github.com/google/gofuzz v1.2.0 // indirect
 	github.com/google/goterm v0.0.0-20200907032337-555d40f16ae2 // indirect
-	github.com/google/rpmpack v0.0.0-20201206194719-59e495f2b7e1 // indirect
+	github.com/google/rpmpack v0.0.0-20221120200012-98b63d62fd77 // indirect
 	github.com/gordonklaus/ineffassign v0.0.0-20230107090616-13ace0543b28 // indirect
-	github.com/goreleaser/chglog v0.1.2 // indirect
+	github.com/goreleaser/chglog v0.4.2 // indirect
 	github.com/goreleaser/fileglob v0.3.1 // indirect
 	github.com/gostaticanalysis/analysisutil v0.7.1 // indirect
 	github.com/gostaticanalysis/comment v1.4.2 // indirect
@@ -214,9 +214,9 @@ require (
 	github.com/hashicorp/go-version v1.6.0 // indirect
 	github.com/hashicorp/hcl v1.0.0 // indirect
 	github.com/hexops/gotextdiff v1.0.3 // indirect
-	github.com/huandu/xstrings v1.3.2 // indirect
-	github.com/imdario/mergo v0.3.12 // indirect
-	github.com/inconshreveable/mousetrap v1.0.1 // indirect
+	github.com/huandu/xstrings v1.4.0 // indirect
+	github.com/imdario/mergo v0.3.15 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
 	github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99 // indirect
 	github.com/jgautheron/goconst v1.5.1 // indirect
 	github.com/jingyugao/rowserrcheck v1.1.1 // indirect
@@ -226,10 +226,11 @@ require (
 	github.com/json-iterator/go v1.1.12 // indirect
 	github.com/julz/importas v0.1.0 // indirect
 	github.com/junk1tm/musttag v0.5.0 // indirect
-	github.com/kevinburke/ssh_config v1.1.0 // indirect
+	github.com/kevinburke/ssh_config v1.2.0 // indirect
 	github.com/kisielk/errcheck v1.6.3 // indirect
 	github.com/kisielk/gotool v1.0.0 // indirect
 	github.com/kkHAIKE/contextcheck v1.1.4 // indirect
+	github.com/klauspost/pgzip v1.2.5 // indirect
 	github.com/kr/fs v0.1.0 // indirect
 	github.com/kr/pretty v0.3.1 // indirect
 	github.com/kr/text v0.2.0 // indirect
@@ -237,18 +238,18 @@ require (
 	github.com/kunwardeep/paralleltest v1.0.6 // indirect
 	github.com/kyoh86/exportloopref v0.1.11 // indirect
 	github.com/ldez/gomoddirectives v0.2.3 // indirect
-	github.com/ldez/tagliatelle v0.4.0 // indirect
+	github.com/ldez/tagliatelle v0.5.0 // indirect
 	github.com/leonklingele/grouper v1.1.1 // indirect
 	github.com/lufeee/execinquery v1.2.1 // indirect
-	github.com/magiconair/properties v1.8.6 // indirect
-	github.com/mailru/easyjson v0.7.6 // indirect
+	github.com/magiconair/properties v1.8.7 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
 	github.com/maratori/testableexamples v1.0.0 // indirect
 	github.com/maratori/testpackage v1.1.1 // indirect
 	github.com/matoous/godox v0.0.0-20230222163458-006bad1f9d26 // indirect
-	github.com/mattn/go-runewidth v0.0.13 // indirect
+	github.com/mattn/go-runewidth v0.0.14 // indirect
 	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/mbilski/exhaustivestruct v1.2.0 // indirect
-	github.com/mdlayher/socket v0.4.0 // indirect
+	github.com/mdlayher/socket v0.4.1 // indirect
 	github.com/mgechev/revive v1.3.1 // indirect
 	github.com/mitchellh/copystructure v1.2.0 // indirect
 	github.com/mitchellh/go-homedir v1.1.0 // indirect
@@ -261,76 +262,79 @@ require (
 	github.com/nakabonne/nestif v0.3.1 // indirect
 	github.com/nbutton23/zxcvbn-go v0.0.0-20210217022336-fa2cb2858354 // indirect
 	github.com/nfnt/resize v0.0.0-20180221191011-83c6a9932646 // indirect
-	github.com/nishanths/exhaustive v0.9.5 // indirect
+	github.com/nishanths/exhaustive v0.10.0 // indirect
 	github.com/nishanths/predeclared v0.2.2 // indirect
-	github.com/nunnatsa/ginkgolinter v0.9.0 // indirect
+	github.com/nunnatsa/ginkgolinter v0.11.2 // indirect
 	github.com/olekukonko/tablewriter v0.0.5 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
-	github.com/opencontainers/image-spec v1.0.3-0.20220114050600-8b9d41f48198 // indirect
-	github.com/pelletier/go-toml v1.9.5 // indirect
-	github.com/pelletier/go-toml/v2 v2.0.5 // indirect
+	github.com/opencontainers/image-spec v1.1.0-rc3 // indirect
+	github.com/pelletier/go-toml/v2 v2.0.7 // indirect
+	github.com/pierrec/lz4/v4 v4.1.17 // indirect
+	github.com/pjbgf/sha1cd v0.3.0 // indirect
 	github.com/pkg/diff v0.0.0-20210226163009-20ebb0f2a09e // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/polyfloyd/go-errorlint v1.4.0 // indirect
-	github.com/prometheus/client_model v0.3.0 // indirect
+	github.com/polyfloyd/go-errorlint v1.4.1 // indirect
+	github.com/prometheus/client_model v0.4.0 // indirect
 	github.com/prometheus/procfs v0.9.0 // indirect
 	github.com/quasilyte/go-ruleguard v0.3.19 // indirect
 	github.com/quasilyte/gogrep v0.5.0 // indirect
 	github.com/quasilyte/regex/syntax v0.0.0-20210819130434-b3f0c404a727 // indirect
 	github.com/quasilyte/stdinfo v0.0.0-20220114132959-f7386bf02567 // indirect
-	github.com/rivo/uniseg v0.2.0 // indirect
-	github.com/rogpeppe/go-internal v1.9.0 // indirect
+	github.com/rivo/uniseg v0.4.4 // indirect
+	github.com/rogpeppe/go-internal v1.10.0 // indirect
 	github.com/ryancurrah/gomodguard v1.3.0 // indirect
 	github.com/ryanrolds/sqlclosecheck v0.4.0 // indirect
 	github.com/sanposhiho/wastedassign/v2 v2.0.7 // indirect
 	github.com/sashamelentyev/interfacebloat v1.1.0 // indirect
 	github.com/sashamelentyev/usestdlibvars v1.23.0 // indirect
-	github.com/sassoftware/go-rpmutils v0.1.0 // indirect
+	github.com/sassoftware/go-rpmutils v0.2.0 // indirect
 	github.com/securego/gosec/v2 v2.15.0 // indirect
-	github.com/sergi/go-diff v1.2.0 // indirect
+	github.com/sergi/go-diff v1.3.1 // indirect
 	github.com/shazow/go-diff v0.0.0-20160112020656-b6b7b6733b8c // indirect
 	github.com/sirupsen/logrus v1.9.0 // indirect
-	github.com/sivchari/containedctx v1.0.2 // indirect
+	github.com/sivchari/containedctx v1.0.3 // indirect
 	github.com/sivchari/nosnakecase v1.7.0 // indirect
 	github.com/sivchari/tenv v1.7.1 // indirect
+	github.com/skeema/knownhosts v1.1.0 // indirect
 	github.com/sonatard/noctx v0.0.2 // indirect
 	github.com/sourcegraph/go-diff v0.7.0 // indirect
-	github.com/spf13/afero v1.8.2 // indirect
+	github.com/spf13/afero v1.9.5 // indirect
 	github.com/spf13/cast v1.5.0 // indirect
-	github.com/spf13/cobra v1.6.1 // indirect
+	github.com/spf13/cobra v1.7.0 // indirect
 	github.com/spf13/jwalterweatherman v1.1.0 // indirect
 	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/spf13/viper v1.12.0 // indirect
+	github.com/spf13/viper v1.15.0 // indirect
 	github.com/ssgreg/nlreturn/v2 v2.2.1 // indirect
 	github.com/stbenjam/no-sprintf-host-port v0.1.1 // indirect
 	github.com/stretchr/objx v0.5.0 // indirect
 	github.com/stretchr/testify v1.8.2 // indirect
-	github.com/subosito/gotenv v1.4.1 // indirect
+	github.com/subosito/gotenv v1.4.2 // indirect
 	github.com/t-yuki/gocover-cobertura v0.0.0-20180217150009-aaee18c8195c // indirect
 	github.com/tdakkota/asciicheck v0.2.0 // indirect
 	github.com/tetafro/godot v1.4.11 // indirect
-	github.com/timakin/bodyclose v0.0.0-20221125081123-e39cf3fc478e // indirect
+	github.com/timakin/bodyclose v0.0.0-20230421092635-574207250966 // indirect
 	github.com/timonwong/loggercheck v0.9.4 // indirect
 	github.com/tomarrell/wrapcheck/v2 v2.8.1 // indirect
 	github.com/tommy-muehle/go-mnd/v2 v2.5.1 // indirect
-	github.com/u-root/uio v0.0.0-20221213070652-c3537552635f // indirect
-	github.com/ulikunitz/xz v0.5.10 // indirect
+	github.com/u-root/uio v0.0.0-20230305220412-3e8cd9d6bf63 // indirect
+	github.com/ulikunitz/xz v0.5.11 // indirect
 	github.com/ultraware/funlen v0.0.3 // indirect
 	github.com/ultraware/whitespace v0.0.5 // indirect
 	github.com/uudashr/gocognit v1.0.6 // indirect
 	github.com/vbatts/tar-split v0.11.2 // indirect
-	github.com/vishvananda/netns v0.0.0-20211101163701-50045581ed74 // indirect
+	github.com/vishvananda/netns v0.0.4 // indirect
 	github.com/x448/float16 v0.8.4 // indirect
-	github.com/xanzy/ssh-agent v0.3.1 // indirect
+	github.com/xanzy/ssh-agent v0.3.3 // indirect
 	github.com/yagipy/maintidx v1.0.0 // indirect
 	github.com/yeya24/promlinter v0.2.0 // indirect
 	gitlab.com/bosi/decorder v0.2.3 // indirect
-	go.uber.org/atomic v1.7.0 // indirect
-	go.uber.org/multierr v1.6.0 // indirect
-	golang.org/x/exp/typeparams v0.0.0-20230224173230-c95f2b4c22f2 // indirect
-	golang.org/x/image v0.5.0 // indirect
-	golang.org/x/text v0.8.0 // indirect
-	gomodules.xyz/jsonpatch/v2 v2.2.0 // indirect
+	gitlab.com/digitalxero/go-conventional-commit v1.0.7 // indirect
+	go.uber.org/atomic v1.11.0 // indirect
+	go.uber.org/multierr v1.11.0 // indirect
+	golang.org/x/exp/typeparams v0.0.0-20230425010034-47ecfdc1ba53 // indirect
+	golang.org/x/image v0.7.0 // indirect
+	golang.org/x/text v0.9.0 // indirect
+	gomodules.xyz/jsonpatch/v2 v2.3.0 // indirect
 	google.golang.org/appengine v1.6.7 // indirect
 	google.golang.org/protobuf v1.30.0 // indirect
 	gopkg.in/inf.v0 v0.9.1 // indirect
@@ -339,15 +343,15 @@ require (
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
 	howett.net/plist v1.0.0 // indirect
-	k8s.io/apiextensions-apiserver v0.25.0 // indirect
-	k8s.io/component-base v0.25.0 // indirect
-	k8s.io/klog/v2 v2.70.1 // indirect
-	k8s.io/kube-openapi v0.0.0-20220803162953-67bda5d908f1 // indirect
-	k8s.io/utils v0.0.0-20220728103510-ee6ede2d64ed // indirect
-	mvdan.cc/gofumpt v0.4.0 // indirect
+	k8s.io/apiextensions-apiserver v0.27.2 // indirect
+	k8s.io/component-base v0.27.2 // indirect
+	k8s.io/klog/v2 v2.100.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20230501164219-8b0f38b5fd1f // indirect
+	k8s.io/utils v0.0.0-20230406110748-d93618cff8a2 // indirect
+	mvdan.cc/gofumpt v0.5.0 // indirect
 	mvdan.cc/interfacer v0.0.0-20180901003855-c20040233aed // indirect
 	mvdan.cc/lint v0.0.0-20170908181259-adc824a0674b // indirect
-	mvdan.cc/unparam v0.0.0-20221223090309-7455f1af531d // indirect
-	sigs.k8s.io/json v0.0.0-20220713155537-f223a00ba0e2 // indirect
+	mvdan.cc/unparam v0.0.0-20230312165513-e84e2d14e3b8 // indirect
+	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
 	sigs.k8s.io/structured-merge-diff/v4 v4.2.3 // indirect
 )

go.mod.sri

@@ -1 +1 @@
-sha256-lirn07XE3JOS6oiwZBMwxzywkbXHowOJUMWWLrZtccY=
+sha256-l2uIma2oEdSN0zVo9BOFJF2gC3S60vXwTLVadv8yQPo=

go.toolchain.rev

@@ -1 +1 @@
-ddff070c02790cb571006e820e58cce9627569cf
+480a0c381923c53e70ed5e72f9a9f79ce1884859

hostinfo/hostinfo_linux.go

@@ -95,6 +95,8 @@ func linuxVersionMeta() (meta versionMeta) {
 		propFile = "/etc.defaults/VERSION"
 	case distro.OpenWrt:
 		propFile = "/etc/openwrt_release"
+	case distro.Unraid:
+		propFile = "/etc/unraid-version"
 	case distro.WDMyCloud:
 		slurp, _ := os.ReadFile("/etc/version")
 		meta.DistroVersion = string(bytes.TrimSpace(slurp))
@@ -153,6 +155,8 @@ func linuxVersionMeta() (meta versionMeta) {
 		meta.DistroVersion = m["productversion"]
 	case distro.OpenWrt:
 		meta.DistroVersion = m["DISTRIB_RELEASE"]
+	case distro.Unraid:
+		meta.DistroVersion = m["version"]
 	}
 	return
 }

ipn/ipnlocal/cert.go

@@ -31,6 +31,7 @@ import (
 	"time"
 
 	"golang.org/x/crypto/acme"
+	"golang.org/x/exp/slices"
 	"tailscale.com/atomicfile"
 	"tailscale.com/envknob"
 	"tailscale.com/hostinfo"
@@ -100,11 +101,13 @@ func (b *LocalBackend) GetCertPEM(ctx context.Context, domain string) (*TLSCertK
 	}
 
 	if pair, err := getCertPEMCached(cs, domain, now); err == nil {
-		future := now.AddDate(0, 0, 14)
-		if b.shouldStartDomainRenewal(cs, domain, future) {
+		shouldRenew, err := shouldStartDomainRenewal(domain, now, pair)
+		if err != nil {
+			logf("error checking for certificate renewal: %v", err)
+		} else if shouldRenew {
 			logf("starting async renewal")
 			// Start renewal in the background.
-			go b.getCertPEM(context.Background(), cs, logf, traceACME, domain, future)
+			go b.getCertPEM(context.Background(), cs, logf, traceACME, domain, now)
 		}
 		return pair, nil
 	}
@@ -117,18 +120,41 @@ func (b *LocalBackend) GetCertPEM(ctx context.Context, domain string) (*TLSCertK
 	return pair, nil
 }
 
-func (b *LocalBackend) shouldStartDomainRenewal(cs certStore, domain string, future time.Time) bool {
+func shouldStartDomainRenewal(domain string, now time.Time, pair *TLSCertKeyPair) (bool, error) {
 	renewMu.Lock()
 	defer renewMu.Unlock()
-	now := time.Now()
 	if last, ok := lastRenewCheck[domain]; ok && now.Sub(last) < time.Minute {
 		// We checked very recently. Don't bother reparsing &
 		// validating the x509 cert.
-		return false
+		return false, nil
 	}
 	lastRenewCheck[domain] = now
-	_, err := getCertPEMCached(cs, domain, future)
-	return errors.Is(err, errCertExpired)
+
+	block, _ := pem.Decode(pair.CertPEM)
+	if block == nil {
+		return false, fmt.Errorf("parsing certificate PEM")
+	}
+	cert, err := x509.ParseCertificate(block.Bytes)
+	if err != nil {
+		return false, fmt.Errorf("parsing certificate: %w", err)
+	}
+
+	certLifetime := cert.NotAfter.Sub(cert.NotBefore)
+	if certLifetime < 0 {
+		return false, fmt.Errorf("negative certificate lifetime %v", certLifetime)
+	}
+
+	// Per https://github.com/tailscale/tailscale/issues/8204, check
+	// whether we're more than 2/3 of the way through the certificate's
+	// lifetime, which is the officially-recommended best practice by Let's
+	// Encrypt.
+	renewalDuration := certLifetime * 2 / 3
+	renewAt := cert.NotBefore.Add(renewalDuration)
+
+	if now.After(renewAt) {
+		return true, nil
+	}
+	return false, nil
 }
 
 // certStore provides a way to perist and retrieve TLS certificates.
@@ -361,17 +387,16 @@ func (b *LocalBackend) getCertPEM(ctx context.Context, cs certStore, logf logger
 				}
 				key := "_acme-challenge." + domain
 
+				// Do a best-effort lookup to see if we've already created this DNS name
+				// in a previous attempt. Don't burn too much time on it, though. Worst
+				// case we ask the server to create something that already exists.
 				var resolver net.Resolver
-				var ok bool
-				txts, _ := resolver.LookupTXT(ctx, key)
-				for _, txt := range txts {
-					if txt == rec {
-						ok = true
-						logf("TXT record already existed")
-						break
-					}
-				}
-				if !ok {
+				lookupCtx, lookupCancel := context.WithTimeout(ctx, 500*time.Millisecond)
+				txts, _ := resolver.LookupTXT(lookupCtx, key)
+				lookupCancel()
+				if slices.Contains(txts, rec) {
+					logf("TXT record already existed")
+				} else {
 					logf("starting SetDNS call...")
 					err = b.SetDNS(ctx, key, rec)
 					if err != nil {

ipn/ipnlocal/cert_test.go

@@ -6,12 +6,19 @@
 package ipnlocal
 
 import (
+	"crypto/ecdsa"
+	"crypto/elliptic"
+	"crypto/rand"
 	"crypto/x509"
+	"crypto/x509/pkix"
 	"embed"
+	"encoding/pem"
+	"math/big"
 	"testing"
 	"time"
 
 	"github.com/google/go-cmp/cmp"
+	"golang.org/x/exp/maps"
 	"tailscale.com/ipn/store/mem"
 )
 
@@ -100,3 +107,94 @@ func TestCertStoreRoundTrip(t *testing.T) {
 		})
 	}
 }
+
+func TestShouldStartDomainRenewal(t *testing.T) {
+	reset := func() {
+		renewMu.Lock()
+		defer renewMu.Unlock()
+		maps.Clear(lastRenewCheck)
+	}
+
+	mustMakePair := func(template *x509.Certificate) *TLSCertKeyPair {
+		priv, err := ecdsa.GenerateKey(elliptic.P256(), rand.Reader)
+		if err != nil {
+			panic(err)
+		}
+
+		b, err := x509.CreateCertificate(rand.Reader, template, template, &priv.PublicKey, priv)
+		if err != nil {
+			panic(err)
+		}
+		certPEM := pem.EncodeToMemory(&pem.Block{
+			Type:  "CERTIFICATE",
+			Bytes: b,
+		})
+
+		return &TLSCertKeyPair{
+			Cached:  false,
+			CertPEM: certPEM,
+			KeyPEM:  []byte("unused"),
+		}
+	}
+
+	now := time.Unix(1685714838, 0)
+	subject := pkix.Name{
+		Organization:  []string{"Tailscale, Inc."},
+		Country:       []string{"CA"},
+		Province:      []string{"ON"},
+		Locality:      []string{"Toronto"},
+		StreetAddress: []string{"290 Bremner Blvd"},
+		PostalCode:    []string{"M5V 3L9"},
+	}
+
+	testCases := []struct {
+		name      string
+		notBefore time.Time
+		lifetime  time.Duration
+		want      bool
+		wantErr   string
+	}{
+		{
+			name:      "should renew",
+			notBefore: now.AddDate(0, 0, -89),
+			lifetime:  90 * 24 * time.Hour,
+			want:      true,
+		},
+		{
+			name:      "short-lived renewal",
+			notBefore: now.AddDate(0, 0, -7),
+			lifetime:  10 * 24 * time.Hour,
+			want:      true,
+		},
+		{
+			name:      "no renew",
+			notBefore: now.AddDate(0, 0, -59), // 59 days ago == not 2/3rds of the way through 90 days yet
+			lifetime:  90 * 24 * time.Hour,
+			want:      false,
+		},
+	}
+	for _, tt := range testCases {
+		t.Run(tt.name, func(t *testing.T) {
+			reset()
+
+			ret, err := shouldStartDomainRenewal("example.com", now, mustMakePair(&x509.Certificate{
+				SerialNumber: big.NewInt(2019),
+				Subject:      subject,
+				NotBefore:    tt.notBefore,
+				NotAfter:     tt.notBefore.Add(tt.lifetime),
+			}))
+
+			if tt.wantErr != "" {
+				if err == nil {
+					t.Errorf("wanted error, got nil")
+				} else if err.Error() != tt.wantErr {
+					t.Errorf("got err=%q, want %q", err.Error(), tt.wantErr)
+				}
+			} else {
+				if ret != tt.want {
+					t.Errorf("got ret=%v, want %v", ret, tt.want)
+				}
+			}
+		})
+	}
+}

ipn/ipnlocal/local.go

@@ -60,6 +60,7 @@ import (
 	"tailscale.com/syncs"
 	"tailscale.com/tailcfg"
 	"tailscale.com/tka"
+	"tailscale.com/tsd"
 	"tailscale.com/types/dnstype"
 	"tailscale.com/types/empty"
 	"tailscale.com/types/key"
@@ -137,10 +138,11 @@ type LocalBackend struct {
 	logf                  logger.Logf        // general logging
 	keyLogf               logger.Logf        // for printing list of peers on change
 	statsLogf             logger.Logf        // for printing peers stats on change
-	e                     wgengine.Engine
+	sys                   *tsd.System
+	e                     wgengine.Engine // non-nil; TODO(bradfitz): remove; use sys
 	pm                    *profileManager
-	store                 ipn.StateStore
-	dialer                *tsdial.Dialer // non-nil
+	store                 ipn.StateStore // non-nil; TODO(bradfitz): remove; use sys
+	dialer                *tsdial.Dialer // non-nil; TODO(bradfitz): remove; use sys
 	backendLogID          logid.PublicID
 	unregisterNetMon      func()
 	unregisterHealthWatch func()
@@ -267,10 +269,10 @@ type clientGen func(controlclient.Options) (controlclient.Client, error)
 // but is not actually running.
 //
 // If dialer is nil, a new one is made.
-func NewLocalBackend(logf logger.Logf, logID logid.PublicID, store ipn.StateStore, dialer *tsdial.Dialer, e wgengine.Engine, loginFlags controlclient.LoginFlags) (*LocalBackend, error) {
-	if e == nil {
-		panic("ipn.NewLocalBackend: engine must not be nil")
-	}
+func NewLocalBackend(logf logger.Logf, logID logid.PublicID, sys *tsd.System, loginFlags controlclient.LoginFlags) (*LocalBackend, error) {
+	e := sys.Engine.Get()
+	store := sys.StateStore.Get()
+	dialer := sys.Dialer.Get()
 
 	pm, err := newProfileManager(store, logf)
 	if err != nil {
@@ -290,10 +292,7 @@ func NewLocalBackend(logf logger.Logf, logID logid.PublicID, store ipn.StateStor
 	osshare.SetFileSharingEnabled(false, logf)
 
 	ctx, cancel := context.WithCancel(context.Background())
-	portpoll, err := portlist.NewPoller()
-	if err != nil {
-		logf("skipping portlist: %s", err)
-	}
+	portpoll := new(portlist.Poller)
 
 	b := &LocalBackend{
 		ctx:            ctx,
@@ -301,10 +300,11 @@ func NewLocalBackend(logf logger.Logf, logID logid.PublicID, store ipn.StateStor
 		logf:           logf,
 		keyLogf:        logger.LogOnChange(logf, 5*time.Minute, time.Now),
 		statsLogf:      logger.LogOnChange(logf, 5*time.Minute, time.Now),
+		sys:            sys,
 		e:              e,
-		pm:             pm,
-		store:          store,
 		dialer:         dialer,
+		store:          store,
+		pm:             pm,
 		backendLogID:   logID,
 		state:          ipn.NoState,
 		portpoll:       portpoll,
@@ -313,7 +313,8 @@ func NewLocalBackend(logf logger.Logf, logID logid.PublicID, store ipn.StateStor
 		loginFlags:     loginFlags,
 	}
 
-	b.sockstatLogger, err = sockstatlog.NewLogger(logpolicy.LogsDir(logf), logf, logID, e.GetNetMon())
+	netMon := sys.NetMon.Get()
+	b.sockstatLogger, err = sockstatlog.NewLogger(logpolicy.LogsDir(logf), logf, logID, netMon)
 	if err != nil {
 		log.Printf("error setting up sockstat logger: %v", err)
 	}
@@ -330,7 +331,6 @@ func NewLocalBackend(logf logger.Logf, logID logid.PublicID, store ipn.StateStor
 	b.statusChanged = sync.NewCond(&b.statusLock)
 	b.e.SetStatusCallback(b.setWgengineStatus)
 
-	netMon := e.GetNetMon()
 	b.prevIfState = netMon.InterfaceState()
 	// Call our linkChange code once with the current state, and
 	// then also whenever it changes:
@@ -339,14 +339,9 @@ func NewLocalBackend(logf logger.Logf, logID logid.PublicID, store ipn.StateStor
 
 	b.unregisterHealthWatch = health.RegisterWatcher(b.onHealthChange)
 
-	wiredPeerAPIPort := false
-	if ig, ok := e.(wgengine.InternalsGetter); ok {
-		if tunWrap, _, _, ok := ig.GetInternals(); ok {
-			tunWrap.PeerAPIPort = b.GetPeerAPIPort
-			wiredPeerAPIPort = true
-		}
-	}
-	if !wiredPeerAPIPort {
+	if tunWrap, ok := b.sys.Tun.GetOK(); ok {
+		tunWrap.PeerAPIPort = b.GetPeerAPIPort
+	} else {
 		b.logf("[unexpected] failed to wire up PeerAPI port for engine %T", e)
 	}
 
@@ -464,6 +459,7 @@ func (b *LocalBackend) GetComponentDebugLogging(component string) time.Time {
 }
 
 // Dialer returns the backend's dialer.
+// It is always non-nil.
 func (b *LocalBackend) Dialer() *tsdial.Dialer {
 	return b.dialer
 }
@@ -644,7 +640,7 @@ func (b *LocalBackend) updateStatus(sb *ipnstate.StatusBuilder, extraLocked func
 	defer b.mu.Unlock()
 	sb.MutateStatus(func(s *ipnstate.Status) {
 		s.Version = version.Long()
-		s.TUN = !wgengine.IsNetstack(b.e)
+		s.TUN = !b.sys.IsNetstack()
 		s.BackendState = b.state.String()
 		s.AuthURL = b.authURLSticky
 		if err := health.OverallError(); err != nil {
@@ -1315,8 +1311,8 @@ func (b *LocalBackend) Start(opts ipn.Options) error {
 	hostinfo := hostinfo.New()
 	hostinfo.BackendLogID = b.backendLogID.String()
 	hostinfo.FrontendLogID = opts.FrontendLogID
-	hostinfo.Userspace.Set(wgengine.IsNetstack(b.e))
-	hostinfo.UserspaceRouter.Set(wgengine.IsNetstackRouter(b.e))
+	hostinfo.Userspace.Set(b.sys.IsNetstack())
+	hostinfo.UserspaceRouter.Set(b.sys.IsNetstackRouter())
 
 	if b.cc != nil {
 		// TODO(apenwarr): avoid the need to reinit controlclient.
@@ -1378,7 +1374,6 @@ func (b *LocalBackend) Start(opts ipn.Options) error {
 
 	if b.portpoll != nil {
 		b.portpollOnce.Do(func() {
-			go b.portpoll.Run(b.ctx)
 			go b.readPoller()
 
 			// Give the poller a second to get results to
@@ -1401,7 +1396,7 @@ func (b *LocalBackend) Start(opts ipn.Options) error {
 
 	var err error
 
-	isNetstack := wgengine.IsNetstackRouter(b.e)
+	isNetstack := b.sys.IsNetstackRouter()
 	debugFlags := controlDebugFlags
 	if isNetstack {
 		debugFlags = append([]string{"netstack"}, debugFlags...)
@@ -1423,7 +1418,7 @@ func (b *LocalBackend) Start(opts ipn.Options) error {
 		HTTPTestClient:       httpTestClient,
 		DiscoPublicKey:       discoPublic,
 		DebugFlags:           debugFlags,
-		NetMon:               b.e.GetNetMon(),
+		NetMon:               b.sys.NetMon.Get(),
 		Pinger:               b,
 		PopBrowserURL:        b.tellClientToBrowseToURL,
 		OnClientVersion:      b.onClientVersion,
@@ -1813,11 +1808,30 @@ func dnsMapsEqual(new, old *netmap.NetworkMap) bool {
 // readPoller is a goroutine that receives service lists from
 // b.portpoll and propagates them into the controlclient's HostInfo.
 func (b *LocalBackend) readPoller() {
-	n := 0
+	isFirst := true
+	ticker := time.NewTicker(portlist.PollInterval())
+	defer ticker.Stop()
+	initChan := make(chan struct{})
+	close(initChan)
 	for {
-		ports, ok := <-b.portpoll.Updates()
-		if !ok {
+		select {
+		case <-ticker.C:
+		case <-b.ctx.Done():
 			return
+		case <-initChan:
+			// Preserving old behavior: readPoller should
+			// immediately poll the first time, then wait
+			// for a tick after.
+			initChan = nil
+		}
+
+		ports, changed, err := b.portpoll.Poll()
+		if err != nil {
+			b.logf("error polling for open ports: %v", err)
+			return
+		}
+		if !changed {
+			continue
 		}
 		sl := []tailcfg.Service{}
 		for _, p := range ports {
@@ -1841,8 +1855,8 @@ func (b *LocalBackend) readPoller() {
 
 		b.doSetHostinfoFilterServices(hi)
 
-		n++
-		if n == 1 {
+		if isFirst {
+			isFirst = false
 			close(b.gotPortPollRes)
 		}
 	}
@@ -2479,7 +2493,7 @@ func (b *LocalBackend) parseWgStatusLocked(s *wgengine.Status) (ret ipn.EngineSt
 	// [GRINDER STATS LINES] - please don't remove (used for log parsing)
 	if peerStats.Len() > 0 {
 		b.keyLogf("[v1] peer keys: %s", strings.TrimSpace(peerKeys.String()))
-		b.statsLogf("[v1] v%v peers: %v", version.Long, strings.TrimSpace(peerStats.String()))
+		b.statsLogf("[v1] v%v peers: %v", version.Long(), strings.TrimSpace(peerStats.String()))
 	}
 	return ret
 }
@@ -3317,14 +3331,12 @@ func (b *LocalBackend) initPeerAPIListener() {
 		directFileMode:          b.directFileRoot != "",
 		directFileDoFinalRename: b.directFileDoFinalRename,
 	}
-	if re, ok := b.e.(wgengine.ResolvingEngine); ok {
-		if r, ok := re.GetResolver(); ok {
-			ps.resolver = r
-		}
+	if dm, ok := b.sys.DNSManager.GetOK(); ok {
+		ps.resolver = dm.Resolver()
 	}
 	b.peerAPIServer = ps
 
-	isNetstack := wgengine.IsNetstack(b.e)
+	isNetstack := b.sys.IsNetstack()
 	for i, a := range b.netMap.Addresses {
 		var ln net.Listener
 		var err error
@@ -3630,6 +3642,19 @@ func (b *LocalBackend) hasNodeKey() bool {
 	return p.Valid() && p.Persist().Valid() && !p.Persist().PrivateNodeKey().IsZero()
 }
 
+// NodeKey returns the public node key.
+func (b *LocalBackend) NodeKey() key.NodePublic {
+	b.mu.Lock()
+	defer b.mu.Unlock()
+
+	p := b.pm.CurrentPrefs()
+	if !p.Valid() || !p.Persist().Valid() || p.Persist().PrivateNodeKey().IsZero() {
+		return key.NodePublic{}
+	}
+
+	return p.Persist().PublicNodeKey()
+}
+
 // nextState returns the state the backend seems to be in, based on
 // its internal state.
 func (b *LocalBackend) nextState() ipn.State {
@@ -4040,7 +4065,7 @@ func (b *LocalBackend) setTCPPortsInterceptedFromNetmapAndPrefsLocked(prefs ipn.
 		b.setServeProxyHandlersLocked()
 
 		// don't listen on netmap addresses if we're in userspace mode
-		if !wgengine.IsNetstack(b.e) {
+		if !b.sys.IsNetstack() {
 			b.updateServeTCPPortNetMapAddrListenersLocked(servePorts)
 		}
 	}
@@ -4391,7 +4416,7 @@ func nodeIP(n *tailcfg.Node, pred func(netip.Addr) bool) netip.Addr {
 }
 
 func (b *LocalBackend) CheckIPForwarding() error {
-	if wgengine.IsNetstackRouter(b.e) {
+	if b.sys.IsNetstackRouter() {
 		return nil
 	}
 
@@ -4537,13 +4562,9 @@ func (b *LocalBackend) DebugReSTUN() error {
 }
 
 func (b *LocalBackend) magicConn() (*magicsock.Conn, error) {
-	ig, ok := b.e.(wgengine.InternalsGetter)
+	mc, ok := b.sys.MagicSock.GetOK()
 	if !ok {
-		return nil, errors.New("engine isn't InternalsGetter")
-	}
-	_, mc, _, ok := ig.GetInternals()
-	if !ok {
-		return nil, errors.New("failed to get internals")
+		return nil, errors.New("failed to get magicsock from sys")
 	}
 	return mc, nil
 }

ipn/ipnlocal/local_test.go

@@ -20,6 +20,7 @@ import (
 	"tailscale.com/net/interfaces"
 	"tailscale.com/net/tsaddr"
 	"tailscale.com/tailcfg"
+	"tailscale.com/tsd"
 	"tailscale.com/tstest"
 	"tailscale.com/types/key"
 	"tailscale.com/types/logger"
@@ -501,13 +502,16 @@ func TestLazyMachineKeyGeneration(t *testing.T) {
 	tstest.Replace(t, &panicOnMachineKeyGeneration, func() bool { return true })
 
 	var logf logger.Logf = logger.Discard
+	sys := new(tsd.System)
 	store := new(mem.Store)
-	eng, err := wgengine.NewFakeUserspaceEngine(logf, 0)
+	sys.Set(store)
+	eng, err := wgengine.NewFakeUserspaceEngine(logf, sys.Set)
 	if err != nil {
 		t.Fatalf("NewFakeUserspaceEngine: %v", err)
 	}
 	t.Cleanup(eng.Close)
-	lb, err := NewLocalBackend(logf, logid.PublicID{}, store, nil, eng, 0)
+	sys.Set(eng)
+	lb, err := NewLocalBackend(logf, logid.PublicID{}, sys, 0)
 	if err != nil {
 		t.Fatalf("NewLocalBackend: %v", err)
 	}
@@ -765,13 +769,16 @@ func TestPacketFilterPermitsUnlockedNodes(t *testing.T) {
 func TestStatusWithoutPeers(t *testing.T) {
 	logf := tstest.WhileTestRunningLogger(t)
 	store := new(testStateStorage)
-	e, err := wgengine.NewFakeUserspaceEngine(logf, 0)
+	sys := new(tsd.System)
+	sys.Set(store)
+	e, err := wgengine.NewFakeUserspaceEngine(logf, sys.Set)
 	if err != nil {
 		t.Fatalf("NewFakeUserspaceEngine: %v", err)
 	}
+	sys.Set(e)
 	t.Cleanup(e.Close)
 
-	b, err := NewLocalBackend(logf, logid.PublicID{}, store, nil, e, 0)
+	b, err := NewLocalBackend(logf, logid.PublicID{}, sys, 0)
 	if err != nil {
 		t.Fatalf("NewLocalBackend: %v", err)
 	}

ipn/ipnlocal/loglines_test.go

@@ -12,6 +12,7 @@ import (
 	"tailscale.com/ipn/ipnstate"
 	"tailscale.com/ipn/store/mem"
 	"tailscale.com/tailcfg"
+	"tailscale.com/tsd"
 	"tailscale.com/tstest"
 	"tailscale.com/types/key"
 	"tailscale.com/types/logger"
@@ -47,14 +48,17 @@ func TestLocalLogLines(t *testing.T) {
 	idA := logid(0xaa)
 
 	// set up a LocalBackend, super bare bones. No functional data.
+	sys := new(tsd.System)
 	store := new(mem.Store)
-	e, err := wgengine.NewFakeUserspaceEngine(logf, 0)
+	sys.Set(store)
+	e, err := wgengine.NewFakeUserspaceEngine(logf, sys.Set)
 	if err != nil {
 		t.Fatal(err)
 	}
 	t.Cleanup(e.Close)
+	sys.Set(e)
 
-	lb, err := NewLocalBackend(logf, idA, store, nil, e, 0)
+	lb, err := NewLocalBackend(logf, idA, sys, 0)
 	if err != nil {
 		t.Fatal(err)
 	}

ipn/ipnlocal/network-lock.go

@@ -449,6 +449,8 @@ func (b *LocalBackend) NetworkLockStatus() *ipnstate.NetworkLockStatus {
 		filtered[i] = b.tka.filtered[i].Clone()
 	}
 
+	stateID1, _ := b.tka.authority.StateIDs()
+
 	return &ipnstate.NetworkLockStatus{
 		Enabled:       true,
 		Head:          &head,
@@ -457,6 +459,7 @@ func (b *LocalBackend) NetworkLockStatus() *ipnstate.NetworkLockStatus {
 		NodeKeySigned: selfAuthorized,
 		TrustedKeys:   outKeys,
 		FilteredPeers: filtered,
+		StateID:       stateID1,
 	}
 }
 

ipn/ipnlocal/peerapi.go

@@ -49,7 +49,7 @@ import (
 	"tailscale.com/tailcfg"
 	"tailscale.com/util/clientmetric"
 	"tailscale.com/util/multierr"
-	"tailscale.com/wgengine"
+	"tailscale.com/version/distro"
 	"tailscale.com/wgengine/filter"
 )
 
@@ -468,7 +468,7 @@ func (s *peerAPIServer) listen(ip netip.Addr, ifState *interfaces.State) (ln net
 		}
 	}
 
-	if wgengine.IsNetstack(s.b.e) {
+	if s.b.sys.IsNetstack() {
 		ipStr = ""
 	}
 
@@ -1090,6 +1090,10 @@ func (h *peerAPIHandler) handlePeerPut(w http.ResponseWriter, r *http.Request) {
 		http.Error(w, errNoTaildrop.Error(), http.StatusInternalServerError)
 		return
 	}
+	if distro.Get() == distro.Unraid && !h.ps.directFileMode {
+		http.Error(w, "Taildrop folder not configured or accessible", http.StatusInternalServerError)
+		return
+	}
 	rawPath := r.URL.EscapedPath()
 	suffix, ok := strings.CutPrefix(rawPath, "/v0/put/")
 	if !ok {
@@ -1234,12 +1238,9 @@ func (h *peerAPIHandler) handleServeMagicsock(w http.ResponseWriter, r *http.Req
 		http.Error(w, "denied; no debug access", http.StatusForbidden)
 		return
 	}
-	eng := h.ps.b.e
-	if ig, ok := eng.(wgengine.InternalsGetter); ok {
-		if _, mc, _, ok := ig.GetInternals(); ok {
-			mc.ServeHTTPDebug(w, r)
-			return
-		}
+	if mc, ok := h.ps.b.sys.MagicSock.GetOK(); ok {
+		mc.ServeHTTPDebug(w, r)
+		return
 	}
 	http.Error(w, "miswired", 500)
 }

ipn/ipnlocal/profiles.go

@@ -22,6 +22,10 @@ import (
 	"tailscale.com/util/winutil"
 )
 
+var errAlreadyMigrated = errors.New("profile migration already completed")
+
+var debug = envknob.RegisterBool("TS_DEBUG_PROFILES")
+
 // profileManager is a wrapper around a StateStore that manages
 // multiple profiles and the current profile.
 type profileManager struct {
@@ -40,6 +44,13 @@ type profileManager struct {
 	isNewProfile bool
 }
 
+func (pm *profileManager) dlogf(format string, args ...any) {
+	if !debug() {
+		return
+	}
+	pm.logf(format, args...)
+}
+
 // CurrentUserID returns the current user ID. It is only non-empty on
 // Windows where we have a multi-user system.
 func (pm *profileManager) CurrentUserID() ipn.WindowsUserID {
@@ -64,9 +75,11 @@ func (pm *profileManager) SetCurrentUserID(uid ipn.WindowsUserID) error {
 	// Read the CurrentProfileKey from the store which stores
 	// the selected profile for the current user.
 	b, err := pm.store.ReadState(ipn.CurrentProfileKey(string(uid)))
+	pm.dlogf("SetCurrentUserID: ReadState(%q) = %v, %v", string(uid), len(b), err)
 	if err == ipn.ErrStateNotExist || len(b) == 0 {
 		if runtime.GOOS == "windows" {
-			if err := pm.migrateFromLegacyPrefs(); err != nil {
+			pm.dlogf("SetCurrentUserID: windows: migrating from legacy preferences")
+			if err := pm.migrateFromLegacyPrefs(); err != nil && !errors.Is(err, errAlreadyMigrated) {
 				return err
 			}
 		} else {
@@ -79,6 +92,7 @@ func (pm *profileManager) SetCurrentUserID(uid ipn.WindowsUserID) error {
 	pk := ipn.StateKey(string(b))
 	prof := pm.findProfileByKey(pk)
 	if prof == nil {
+		pm.dlogf("SetCurrentUserID: no profile found for key: %q", pk)
 		pm.NewProfile()
 		return nil
 	}
@@ -544,8 +558,16 @@ func newProfileManagerWithGOOS(store ipn.StateStore, logf logger.Logf, goos stri
 		if err := pm.setPrefsLocked(prefs); err != nil {
 			return nil, err
 		}
-	} else if len(knownProfiles) == 0 && goos != "windows" {
+		// Most platform behavior is controlled by the goos parameter, however
+		// some behavior is implied by build tag and fails when run on Windows,
+		// so we explicitly avoid that behavior when running on Windows.
+		// Specifically this reaches down into legacy preference loading that is
+		// specialized by profiles_windows.go and fails in tests on an invalid
+		// uid passed in from the unix tests. The uid's used for Windows tests
+		// and runtime must be valid Windows security identifier structures.
+	} else if len(knownProfiles) == 0 && goos != "windows" && runtime.GOOS != "windows" {
 		// No known profiles, try a migration.
+		pm.dlogf("no known profiles; trying to migrate from legacy prefs")
 		if err := pm.migrateFromLegacyPrefs(); err != nil {
 			return nil, err
 		}
@@ -562,13 +584,15 @@ func (pm *profileManager) migrateFromLegacyPrefs() error {
 	sentinel, prefs, err := pm.loadLegacyPrefs()
 	if err != nil {
 		metricMigrationError.Add(1)
-		return err
+		return fmt.Errorf("load legacy prefs: %w", err)
 	}
+	pm.dlogf("loaded legacy preferences; sentinel=%q", sentinel)
 	if err := pm.SetPrefs(prefs); err != nil {
 		metricMigrationError.Add(1)
 		return fmt.Errorf("migrating _daemon profile: %w", err)
 	}
 	pm.completeMigration(sentinel)
+	pm.dlogf("completed legacy preferences migration with sentinel=%q", sentinel)
 	metricMigrationSuccess.Add(1)
 	return nil
 }

ipn/ipnlocal/profiles_test.go

@@ -5,7 +5,7 @@ package ipnlocal
 
 import (
 	"fmt"
-	"runtime"
+	"os/user"
 	"strconv"
 	"testing"
 
@@ -18,9 +18,6 @@ import (
 )
 
 func TestProfileCurrentUserSwitch(t *testing.T) {
-	if runtime.GOOS == "windows" {
-		t.Skip("TODO(#7876): test regressed on windows while CI was broken")
-	}
 	store := new(mem.Store)
 
 	pm, err := newProfileManagerWithGOOS(store, logger.Discard, "linux")
@@ -77,9 +74,6 @@ func TestProfileCurrentUserSwitch(t *testing.T) {
 }
 
 func TestProfileList(t *testing.T) {
-	if runtime.GOOS == "windows" {
-		t.Skip("TODO(#7876): test regressed on windows while CI was broken")
-	}
 	store := new(mem.Store)
 
 	pm, err := newProfileManagerWithGOOS(store, logger.Discard, "linux")
@@ -158,9 +152,6 @@ func TestProfileList(t *testing.T) {
 
 // TestProfileManagement tests creating, loading, and switching profiles.
 func TestProfileManagement(t *testing.T) {
-	if runtime.GOOS == "windows" {
-		t.Skip("TODO(#7876): test regressed on windows while CI was broken")
-	}
 	store := new(mem.Store)
 
 	pm, err := newProfileManagerWithGOOS(store, logger.Discard, "linux")
@@ -312,10 +303,11 @@ func TestProfileManagement(t *testing.T) {
 // TestProfileManagementWindows tests going into and out of Unattended mode on
 // Windows.
 func TestProfileManagementWindows(t *testing.T) {
-
-	if runtime.GOOS == "windows" {
-		t.Skip("TODO(#7876): test regressed on windows while CI was broken")
+	u, err := user.Current()
+	if err != nil {
+		t.Fatal(err)
 	}
+	uid := ipn.WindowsUserID(u.Uid)
 
 	store := new(mem.Store)
 
@@ -365,8 +357,8 @@ func TestProfileManagementWindows(t *testing.T) {
 
 	{
 		t.Logf("Set user1 as logged in user")
-		if err := pm.SetCurrentUserID("user1"); err != nil {
-			t.Fatal(err)
+		if err := pm.SetCurrentUserID(uid); err != nil {
+			t.Fatalf("can't set user id: %s", err)
 		}
 		checkProfiles(t)
 		t.Logf("Save prefs for user1")
@@ -401,7 +393,7 @@ func TestProfileManagementWindows(t *testing.T) {
 
 	{
 		t.Logf("Set user1 as current user")
-		if err := pm.SetCurrentUserID("user1"); err != nil {
+		if err := pm.SetCurrentUserID(uid); err != nil {
 			t.Fatal(err)
 		}
 		wantCurProfile = "test"
@@ -411,8 +403,8 @@ func TestProfileManagementWindows(t *testing.T) {
 		t.Logf("set unattended mode")
 		wantProfiles["test"] = setPrefs(t, "test", true)
 	}
-	if pm.CurrentUserID() != "user1" {
-		t.Fatalf("CurrentUserID = %q; want %q", pm.CurrentUserID(), "user1")
+	if pm.CurrentUserID() != uid {
+		t.Fatalf("CurrentUserID = %q; want %q", pm.CurrentUserID(), uid)
 	}
 
 	// Recreate the profile manager to ensure that it starts with test profile.
@@ -421,7 +413,7 @@ func TestProfileManagementWindows(t *testing.T) {
 		t.Fatal(err)
 	}
 	checkProfiles(t)
-	if pm.CurrentUserID() != "user1" {
-		t.Fatalf("CurrentUserID = %q; want %q", pm.CurrentUserID(), "user1")
+	if pm.CurrentUserID() != uid {
+		t.Fatalf("CurrentUserID = %q; want %q", pm.CurrentUserID(), uid)
 	}
 }

ipn/ipnlocal/profiles_windows.go

@@ -6,6 +6,7 @@ package ipnlocal
 import (
 	"errors"
 	"fmt"
+	"io/fs"
 	"os"
 	"os/user"
 	"path/filepath"
@@ -21,8 +22,6 @@ const (
 	legacyPrefsExt                   = ".conf"
 )
 
-var errAlreadyMigrated = errors.New("profile migration already completed")
-
 func legacyPrefsDir(uid ipn.WindowsUserID) (string, error) {
 	// TODO(aaron): Ideally we'd have the impersonation token for the pipe's
 	// client and use it to call SHGetKnownFolderPath, thus yielding the correct
@@ -41,6 +40,7 @@ func legacyPrefsDir(uid ipn.WindowsUserID) (string, error) {
 func (pm *profileManager) loadLegacyPrefs() (string, ipn.PrefsView, error) {
 	userLegacyPrefsDir, err := legacyPrefsDir(pm.currentUserID)
 	if err != nil {
+		pm.dlogf("no legacy preferences directory for %q: %v", pm.currentUserID, err)
 		return "", ipn.PrefsView{}, err
 	}
 
@@ -48,14 +48,20 @@ func (pm *profileManager) loadLegacyPrefs() (string, ipn.PrefsView, error) {
 	// verify that migration sentinel is not present
 	_, err = os.Stat(migrationSentinel)
 	if err == nil {
+		pm.dlogf("migration sentinel %q already exists", migrationSentinel)
 		return "", ipn.PrefsView{}, errAlreadyMigrated
 	}
 	if !os.IsNotExist(err) {
+		pm.dlogf("os.Stat(%q) = %v", migrationSentinel, err)
 		return "", ipn.PrefsView{}, err
 	}
 
 	prefsPath := filepath.Join(userLegacyPrefsDir, legacyPrefsFile+legacyPrefsExt)
 	prefs, err := ipn.LoadPrefs(prefsPath)
+	pm.dlogf("ipn.LoadPrefs(%q) = %v, %v", prefsPath, prefs, err)
+	if errors.Is(err, fs.ErrNotExist) {
+		return "", ipn.PrefsView{}, errAlreadyMigrated
+	}
 	if err != nil {
 		return "", ipn.PrefsView{}, err
 	}

ipn/ipnlocal/serve.go

@@ -143,7 +143,7 @@ func (s *serveListener) Run() {
 }
 
 func (s *serveListener) shouldWarnAboutListenError(err error) bool {
-	if !s.b.e.GetNetMon().InterfaceState().HasIP(s.ap.Addr()) {
+	if !s.b.sys.NetMon.Get().InterfaceState().HasIP(s.ap.Addr()) {
 		// Machine likely doesn't have IPv6 enabled (or the IP is still being
 		// assigned). No need to warn. Notably, WSL2 (Issue 6303).
 		return false
@@ -447,6 +447,8 @@ func (b *LocalBackend) proxyHandlerForBackend(backend string) (*httputil.Reverse
 		Rewrite: func(r *httputil.ProxyRequest) {
 			r.SetURL(u)
 			r.Out.Host = r.In.Host
+			r.Out.Header.Set("X-Forwarded-Host", r.In.Host)
+			r.Out.Header.Set("X-Forwarded-Proto", "https")
 			if c, ok := r.Out.Context().Value(serveHTTPContextKey{}).(*serveHTTPContext); ok {
 				r.Out.Header.Set("X-Forwarded-For", c.SrcAddr.Addr().String())
 			}

ipn/ipnlocal/state_test.go

@@ -17,6 +17,7 @@ import (
 	"tailscale.com/ipn"
 	"tailscale.com/ipn/store/mem"
 	"tailscale.com/tailcfg"
+	"tailscale.com/tsd"
 	"tailscale.com/tstest"
 	"tailscale.com/types/empty"
 	"tailscale.com/types/key"
@@ -297,14 +298,17 @@ func TestStateMachine(t *testing.T) {
 	c := qt.New(t)
 
 	logf := tstest.WhileTestRunningLogger(t)
+	sys := new(tsd.System)
 	store := new(testStateStorage)
-	e, err := wgengine.NewFakeUserspaceEngine(logf, 0)
+	sys.Set(store)
+	e, err := wgengine.NewFakeUserspaceEngine(logf, sys.Set)
 	if err != nil {
 		t.Fatalf("NewFakeUserspaceEngine: %v", err)
 	}
 	t.Cleanup(e.Close)
+	sys.Set(e)
 
-	b, err := NewLocalBackend(logf, logid.PublicID{}, store, nil, e, 0)
+	b, err := NewLocalBackend(logf, logid.PublicID{}, sys, 0)
 	if err != nil {
 		t.Fatalf("NewLocalBackend: %v", err)
 	}
@@ -941,13 +945,16 @@ func TestStateMachine(t *testing.T) {
 
 func TestEditPrefsHasNoKeys(t *testing.T) {
 	logf := tstest.WhileTestRunningLogger(t)
-	e, err := wgengine.NewFakeUserspaceEngine(logf, 0)
+	sys := new(tsd.System)
+	sys.Set(new(mem.Store))
+	e, err := wgengine.NewFakeUserspaceEngine(logf, sys.Set)
 	if err != nil {
 		t.Fatalf("NewFakeUserspaceEngine: %v", err)
 	}
 	t.Cleanup(e.Close)
+	sys.Set(e)
 
-	b, err := NewLocalBackend(logf, logid.PublicID{}, new(mem.Store), nil, e, 0)
+	b, err := NewLocalBackend(logf, logid.PublicID{}, sys, 0)
 	if err != nil {
 		t.Fatalf("NewLocalBackend: %v", err)
 	}
@@ -1023,10 +1030,14 @@ func TestWGEngineStatusRace(t *testing.T) {
 	t.Skip("test fails")
 	c := qt.New(t)
 	logf := tstest.WhileTestRunningLogger(t)
-	eng, err := wgengine.NewFakeUserspaceEngine(logf, 0)
+	sys := new(tsd.System)
+	sys.Set(new(mem.Store))
+
+	eng, err := wgengine.NewFakeUserspaceEngine(logf, sys.Set)
 	c.Assert(err, qt.IsNil)
 	t.Cleanup(eng.Close)
-	b, err := NewLocalBackend(logf, logid.PublicID{}, new(mem.Store), nil, eng, 0)
+	sys.Set(eng)
+	b, err := NewLocalBackend(logf, logid.PublicID{}, sys, 0)
 	c.Assert(err, qt.IsNil)
 
 	var cc *mockControl

ipn/ipnserver/server.go

@@ -37,7 +37,7 @@ import (
 type Server struct {
 	lb           atomic.Pointer[ipnlocal.LocalBackend]
 	logf         logger.Logf
-	netMon       *netmon.Monitor // optional; nil means interfaces will be looked up on-demand
+	netMon       *netmon.Monitor // must be non-nil
 	backendLogID logid.PublicID
 	// resetOnZero is whether to call bs.Reset on transition from
 	// 1->0 active HTTP requests. That is, this is whether the backend is
@@ -410,14 +410,15 @@ func (s *Server) addActiveHTTPRequest(req *http.Request, ci *ipnauth.ConnIdentit
 }
 
 // New returns a new Server.
-// The netMon parameter is optional; if non-nil it's used to do faster interface
-// lookups.
 //
 // To start it, use the Server.Run method.
 //
 // At some point, either before or after Run, the Server's SetLocalBackend
 // method must also be called before Server can do anything useful.
 func New(logf logger.Logf, logID logid.PublicID, netMon *netmon.Monitor) *Server {
+	if netMon == nil {
+		panic("nil netMon")
+	}
 	return &Server{
 		backendLogID: logID,
 		logf:         logf,

ipn/ipnstate/ipnstate.go

@@ -121,6 +121,11 @@ type NetworkLockStatus struct {
 	// (i.e. no connectivity) because they failed tailnet lock
 	// checks.
 	FilteredPeers []*TKAFilteredPeer
+
+	// StateID is a nonce associated with the network lock authority,
+	// generated upon enablement. This field is not populated if the
+	// network lock is disabled.
+	StateID uint64
 }
 
 // NetworkLockUpdate describes a change to network-lock state.
@@ -583,6 +588,8 @@ func osEmoji(os string) string {
 		return "🖥️"
 	case "iOS":
 		return "📱"
+	case "tvOS":
+		return "🍎📺"
 	case "android":
 		return "🤖"
 	case "freebsd":

ipn/localapi/localapi.go

@@ -930,8 +930,8 @@ func InUseOtherUserIPNStream(w http.ResponseWriter, r *http.Request, err error)
 }
 
 func (h *Handler) serveWatchIPNBus(w http.ResponseWriter, r *http.Request) {
-	if !h.PermitWrite {
-		http.Error(w, "denied", http.StatusForbidden)
+	if !h.PermitRead {
+		http.Error(w, "watch ipn bus access denied", http.StatusForbidden)
 		return
 	}
 	f, ok := w.(http.Flusher)

licenses/android.md

@@ -9,22 +9,23 @@ Client][].  See also the dependencies in the [Tailscale CLI][].
 
 
  - [eliasnaur.com/font/roboto](https://pkg.go.dev/eliasnaur.com/font/roboto) ([BSD-3-Clause](https://git.sr.ht/~eliasnaur/font/tree/832bb8fc08c3/LICENSE))
- - [filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519) ([BSD-3-Clause](https://github.com/FiloSottile/edwards25519/blob/v1.0.0-rc.1/LICENSE))
+ - [filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519) ([BSD-3-Clause](https://github.com/FiloSottile/edwards25519/blob/v1.0.0/LICENSE))
  - [gioui.org](https://pkg.go.dev/gioui.org) ([MIT](https://git.sr.ht/~eliasnaur/gio/tree/32c6a9b10d0b/LICENSE))
  - [gioui.org/cpu](https://pkg.go.dev/gioui.org/cpu) ([MIT](https://git.sr.ht/~eliasnaur/gio-cpu/tree/8d6a761490d2/LICENSE))
  - [gioui.org/shader](https://pkg.go.dev/gioui.org/shader) ([MIT](https://git.sr.ht/~eliasnaur/gio-shader/tree/v1.0.6/LICENSE))
- - [github.com/aws/aws-sdk-go-v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/v1.17.3/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/config](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/config) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/config/v1.11.0/config/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/credentials](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/credentials) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/credentials/v1.6.4/credentials/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/feature/ec2/imds](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/feature/ec2/imds) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/feature/ec2/imds/v1.8.2/feature/ec2/imds/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/configsources](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/configsources) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/configsources/v1.1.27/internal/configsources/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/endpoints/v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/endpoints/v2.4.21/internal/endpoints/v2/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/ini](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/ini) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/ini/v1.3.2/internal/ini/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/sync/singleflight](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/sync/singleflight) ([BSD-3-Clause](https://github.com/aws/aws-sdk-go-v2/blob/v1.17.3/internal/sync/singleflight/LICENSE))
- - [github.com/aws/aws-sdk-go-v2/service/internal/presigned-url](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/internal/presigned-url) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/internal/presigned-url/v1.5.2/service/internal/presigned-url/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/ssm](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssm) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssm/v1.35.0/service/ssm/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/sso](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sso) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sso/v1.6.2/service/sso/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/sts](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sts) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sts/v1.11.1/service/sts/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/v1.18.0/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/config](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/config) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/config/v1.18.22/config/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/credentials](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/credentials) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/credentials/v1.13.21/credentials/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/feature/ec2/imds](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/feature/ec2/imds) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/feature/ec2/imds/v1.13.3/feature/ec2/imds/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/configsources](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/configsources) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/configsources/v1.1.33/internal/configsources/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/endpoints/v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/endpoints/v2.4.27/internal/endpoints/v2/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/ini](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/ini) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/ini/v1.3.34/internal/ini/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/sync/singleflight](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/sync/singleflight) ([BSD-3-Clause](https://github.com/aws/aws-sdk-go-v2/blob/v1.18.0/internal/sync/singleflight/LICENSE))
+ - [github.com/aws/aws-sdk-go-v2/service/internal/presigned-url](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/internal/presigned-url) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/internal/presigned-url/v1.9.27/service/internal/presigned-url/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/ssm](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssm) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssm/v1.36.3/service/ssm/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/sso](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sso) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sso/v1.12.9/service/sso/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/ssooidc](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssooidc) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssooidc/v1.14.9/service/ssooidc/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/sts](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sts) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sts/v1.18.10/service/sts/LICENSE.txt))
  - [github.com/aws/smithy-go](https://pkg.go.dev/github.com/aws/smithy-go) ([Apache-2.0](https://github.com/aws/smithy-go/blob/v1.13.5/LICENSE))
  - [github.com/aws/smithy-go/internal/sync/singleflight](https://pkg.go.dev/github.com/aws/smithy-go/internal/sync/singleflight) ([BSD-3-Clause](https://github.com/aws/smithy-go/blob/v1.13.5/internal/sync/singleflight/LICENSE))
  - [github.com/benoitkugler/textlayout](https://pkg.go.dev/github.com/benoitkugler/textlayout) ([MIT](https://github.com/benoitkugler/textlayout/blob/v0.3.0/LICENSE))
@@ -34,50 +35,51 @@ Client][].  See also the dependencies in the [Tailscale CLI][].
  - [github.com/coreos/go-iptables/iptables](https://pkg.go.dev/github.com/coreos/go-iptables/iptables) ([Apache-2.0](https://github.com/coreos/go-iptables/blob/v0.6.0/LICENSE))
  - [github.com/fxamacker/cbor/v2](https://pkg.go.dev/github.com/fxamacker/cbor/v2) ([MIT](https://github.com/fxamacker/cbor/blob/v2.4.0/LICENSE))
  - [github.com/go-text/typesetting](https://pkg.go.dev/github.com/go-text/typesetting) ([BSD-3-Clause](https://github.com/go-text/typesetting/blob/0399769901d5/LICENSE))
- - [github.com/godbus/dbus/v5](https://pkg.go.dev/github.com/godbus/dbus/v5) ([BSD-2-Clause](https://github.com/godbus/dbus/blob/v5.0.6/LICENSE))
+ - [github.com/godbus/dbus/v5](https://pkg.go.dev/github.com/godbus/dbus/v5) ([BSD-2-Clause](https://github.com/godbus/dbus/blob/v5.1.0/LICENSE))
  - [github.com/golang/groupcache/lru](https://pkg.go.dev/github.com/golang/groupcache/lru) ([Apache-2.0](https://github.com/golang/groupcache/blob/41bb18bfe9da/LICENSE))
- - [github.com/google/btree](https://pkg.go.dev/github.com/google/btree) ([Apache-2.0](https://github.com/google/btree/blob/v1.0.1/LICENSE))
- - [github.com/hdevalence/ed25519consensus](https://pkg.go.dev/github.com/hdevalence/ed25519consensus) ([BSD-3-Clause](https://github.com/hdevalence/ed25519consensus/blob/c00d1f31bab3/LICENSE))
+ - [github.com/google/btree](https://pkg.go.dev/github.com/google/btree) ([Apache-2.0](https://github.com/google/btree/blob/v1.1.2/LICENSE))
+ - [github.com/hdevalence/ed25519consensus](https://pkg.go.dev/github.com/hdevalence/ed25519consensus) ([BSD-3-Clause](https://github.com/hdevalence/ed25519consensus/blob/v0.1.0/LICENSE))
  - [github.com/illarion/gonotify](https://pkg.go.dev/github.com/illarion/gonotify) ([MIT](https://github.com/illarion/gonotify/blob/v1.0.1/LICENSE))
- - [github.com/insomniacslk/dhcp](https://pkg.go.dev/github.com/insomniacslk/dhcp) ([BSD-3-Clause](https://github.com/insomniacslk/dhcp/blob/de60144f33f8/LICENSE))
+ - [github.com/insomniacslk/dhcp](https://pkg.go.dev/github.com/insomniacslk/dhcp) ([BSD-3-Clause](https://github.com/insomniacslk/dhcp/blob/974c6f05fe16/LICENSE))
  - [github.com/jmespath/go-jmespath](https://pkg.go.dev/github.com/jmespath/go-jmespath) ([Apache-2.0](https://github.com/jmespath/go-jmespath/blob/v0.4.0/LICENSE))
  - [github.com/josharian/native](https://pkg.go.dev/github.com/josharian/native) ([MIT](https://github.com/josharian/native/blob/5c7d0dd6ab86/license))
- - [github.com/jsimonetti/rtnetlink](https://pkg.go.dev/github.com/jsimonetti/rtnetlink) ([MIT](https://github.com/jsimonetti/rtnetlink/blob/d380b505068b/LICENSE.md))
- - [github.com/klauspost/compress](https://pkg.go.dev/github.com/klauspost/compress) ([Apache-2.0](https://github.com/klauspost/compress/blob/v1.15.4/LICENSE))
- - [github.com/klauspost/compress/internal/snapref](https://pkg.go.dev/github.com/klauspost/compress/internal/snapref) ([BSD-3-Clause](https://github.com/klauspost/compress/blob/v1.15.4/internal/snapref/LICENSE))
- - [github.com/klauspost/compress/zstd/internal/xxhash](https://pkg.go.dev/github.com/klauspost/compress/zstd/internal/xxhash) ([MIT](https://github.com/klauspost/compress/blob/v1.15.4/zstd/internal/xxhash/LICENSE.txt))
+ - [github.com/jsimonetti/rtnetlink](https://pkg.go.dev/github.com/jsimonetti/rtnetlink) ([MIT](https://github.com/jsimonetti/rtnetlink/blob/v1.3.2/LICENSE.md))
+ - [github.com/klauspost/compress](https://pkg.go.dev/github.com/klauspost/compress) ([Apache-2.0](https://github.com/klauspost/compress/blob/v1.16.5/LICENSE))
+ - [github.com/klauspost/compress/internal/snapref](https://pkg.go.dev/github.com/klauspost/compress/internal/snapref) ([BSD-3-Clause](https://github.com/klauspost/compress/blob/v1.16.5/internal/snapref/LICENSE))
+ - [github.com/klauspost/compress/zstd/internal/xxhash](https://pkg.go.dev/github.com/klauspost/compress/zstd/internal/xxhash) ([MIT](https://github.com/klauspost/compress/blob/v1.16.5/zstd/internal/xxhash/LICENSE.txt))
  - [github.com/kortschak/wol](https://pkg.go.dev/github.com/kortschak/wol) ([BSD-3-Clause](https://github.com/kortschak/wol/blob/da482cc4850a/LICENSE))
- - [github.com/mdlayher/genetlink](https://pkg.go.dev/github.com/mdlayher/genetlink) ([MIT](https://github.com/mdlayher/genetlink/blob/v1.2.0/LICENSE.md))
- - [github.com/mdlayher/netlink](https://pkg.go.dev/github.com/mdlayher/netlink) ([MIT](https://github.com/mdlayher/netlink/blob/v1.7.1/LICENSE.md))
+ - [github.com/mdlayher/genetlink](https://pkg.go.dev/github.com/mdlayher/genetlink) ([MIT](https://github.com/mdlayher/genetlink/blob/v1.3.2/LICENSE.md))
+ - [github.com/mdlayher/netlink](https://pkg.go.dev/github.com/mdlayher/netlink) ([MIT](https://github.com/mdlayher/netlink/blob/v1.7.2/LICENSE.md))
  - [github.com/mdlayher/sdnotify](https://pkg.go.dev/github.com/mdlayher/sdnotify) ([MIT](https://github.com/mdlayher/sdnotify/blob/v1.0.0/LICENSE.md))
- - [github.com/mdlayher/socket](https://pkg.go.dev/github.com/mdlayher/socket) ([MIT](https://github.com/mdlayher/socket/blob/v0.4.0/LICENSE.md))
+ - [github.com/mdlayher/socket](https://pkg.go.dev/github.com/mdlayher/socket) ([MIT](https://github.com/mdlayher/socket/blob/v0.4.1/LICENSE.md))
  - [github.com/mitchellh/go-ps](https://pkg.go.dev/github.com/mitchellh/go-ps) ([MIT](https://github.com/mitchellh/go-ps/blob/v1.0.0/LICENSE.md))
+ - [github.com/pierrec/lz4/v4](https://pkg.go.dev/github.com/pierrec/lz4/v4) ([BSD-3-Clause](https://github.com/pierrec/lz4/blob/v4.1.17/LICENSE))
  - [github.com/skip2/go-qrcode](https://pkg.go.dev/github.com/skip2/go-qrcode) ([MIT](https://github.com/skip2/go-qrcode/blob/da1b6568686e/LICENSE))
- - [github.com/tailscale/golang-x-crypto](https://pkg.go.dev/github.com/tailscale/golang-x-crypto) ([BSD-3-Clause](https://github.com/tailscale/golang-x-crypto/blob/bc99ab8c2d17/LICENSE))
+ - [github.com/tailscale/golang-x-crypto](https://pkg.go.dev/github.com/tailscale/golang-x-crypto) ([BSD-3-Clause](https://github.com/tailscale/golang-x-crypto/blob/17a3db2c30d2/LICENSE))
  - [github.com/tailscale/goupnp](https://pkg.go.dev/github.com/tailscale/goupnp) ([BSD-2-Clause](https://github.com/tailscale/goupnp/blob/c64d0f06ea05/LICENSE))
  - [github.com/tailscale/netlink](https://pkg.go.dev/github.com/tailscale/netlink) ([Apache-2.0](https://github.com/tailscale/netlink/blob/cabfb018fe85/LICENSE))
  - [github.com/tailscale/tailscale-android](https://pkg.go.dev/github.com/tailscale/tailscale-android) ([BSD-3-Clause](https://github.com/tailscale/tailscale-android/blob/HEAD/LICENSE))
  - [github.com/tailscale/wireguard-go](https://pkg.go.dev/github.com/tailscale/wireguard-go) ([MIT](https://github.com/tailscale/wireguard-go/blob/af172621b4dd/LICENSE))
  - [github.com/tcnksm/go-httpstat](https://pkg.go.dev/github.com/tcnksm/go-httpstat) ([MIT](https://github.com/tcnksm/go-httpstat/blob/v0.2.0/LICENSE))
- - [github.com/u-root/uio](https://pkg.go.dev/github.com/u-root/uio) ([BSD-3-Clause](https://github.com/u-root/uio/blob/c3537552635f/LICENSE))
- - [github.com/vishvananda/netlink/nl](https://pkg.go.dev/github.com/vishvananda/netlink/nl) ([Apache-2.0](https://github.com/vishvananda/netlink/blob/650dca95af54/LICENSE))
- - [github.com/vishvananda/netns](https://pkg.go.dev/github.com/vishvananda/netns) ([Apache-2.0](https://github.com/vishvananda/netns/blob/50045581ed74/LICENSE))
+ - [github.com/u-root/uio](https://pkg.go.dev/github.com/u-root/uio) ([BSD-3-Clause](https://github.com/u-root/uio/blob/3e8cd9d6bf63/LICENSE))
+ - [github.com/vishvananda/netlink/nl](https://pkg.go.dev/github.com/vishvananda/netlink/nl) ([Apache-2.0](https://github.com/vishvananda/netlink/blob/v1.2.1-beta.2/LICENSE))
+ - [github.com/vishvananda/netns](https://pkg.go.dev/github.com/vishvananda/netns) ([Apache-2.0](https://github.com/vishvananda/netns/blob/v0.0.4/LICENSE))
  - [github.com/x448/float16](https://pkg.go.dev/github.com/x448/float16) ([MIT](https://github.com/x448/float16/blob/v0.8.4/LICENSE))
  - [go4.org/intern](https://pkg.go.dev/go4.org/intern) ([BSD-3-Clause](https://github.com/go4org/intern/blob/ae77deb06f29/LICENSE))
- - [go4.org/mem](https://pkg.go.dev/go4.org/mem) ([Apache-2.0](https://github.com/go4org/mem/blob/927187094b94/LICENSE))
- - [go4.org/netipx](https://pkg.go.dev/go4.org/netipx) ([BSD-3-Clause](https://github.com/go4org/netipx/blob/7e7bdc8411bf/LICENSE))
+ - [go4.org/mem](https://pkg.go.dev/go4.org/mem) ([Apache-2.0](https://github.com/go4org/mem/blob/4f986261bf13/LICENSE))
+ - [go4.org/netipx](https://pkg.go.dev/go4.org/netipx) ([BSD-3-Clause](https://github.com/go4org/netipx/blob/f1b76eb4bb35/LICENSE))
  - [go4.org/unsafe/assume-no-moving-gc](https://pkg.go.dev/go4.org/unsafe/assume-no-moving-gc) ([BSD-3-Clause](https://github.com/go4org/unsafe-assume-no-moving-gc/blob/ee73d164e760/LICENSE))
- - [golang.org/x/crypto](https://pkg.go.dev/golang.org/x/crypto) ([BSD-3-Clause](https://cs.opensource.google/go/x/crypto/+/v0.6.0:LICENSE))
- - [golang.org/x/exp](https://pkg.go.dev/golang.org/x/exp) ([BSD-3-Clause](https://cs.opensource.google/go/x/exp/+/47842c84:LICENSE))
+ - [golang.org/x/crypto](https://pkg.go.dev/golang.org/x/crypto) ([BSD-3-Clause](https://cs.opensource.google/go/x/crypto/+/v0.8.0:LICENSE))
+ - [golang.org/x/exp](https://pkg.go.dev/golang.org/x/exp) ([BSD-3-Clause](https://cs.opensource.google/go/x/exp/+/47ecfdc1:LICENSE))
  - [golang.org/x/exp/shiny](https://pkg.go.dev/golang.org/x/exp/shiny) ([BSD-3-Clause](https://cs.opensource.google/go/x/exp/+/334a2380:shiny/LICENSE))
- - [golang.org/x/image](https://pkg.go.dev/golang.org/x/image) ([BSD-3-Clause](https://cs.opensource.google/go/x/image/+/v0.5.0:LICENSE))
- - [golang.org/x/net](https://pkg.go.dev/golang.org/x/net) ([BSD-3-Clause](https://cs.opensource.google/go/x/net/+/v0.7.0:LICENSE))
- - [golang.org/x/sync/errgroup](https://pkg.go.dev/golang.org/x/sync/errgroup) ([BSD-3-Clause](https://cs.opensource.google/go/x/sync/+/v0.1.0:LICENSE))
- - [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) ([BSD-3-Clause](https://cs.opensource.google/go/x/sys/+/a3b23cc7:LICENSE))
- - [golang.org/x/term](https://pkg.go.dev/golang.org/x/term) ([BSD-3-Clause](https://cs.opensource.google/go/x/term/+/v0.5.0:LICENSE))
- - [golang.org/x/text](https://pkg.go.dev/golang.org/x/text) ([BSD-3-Clause](https://cs.opensource.google/go/x/text/+/v0.7.0:LICENSE))
- - [golang.org/x/time/rate](https://pkg.go.dev/golang.org/x/time/rate) ([BSD-3-Clause](https://cs.opensource.google/go/x/time/+/579cf78f:LICENSE))
- - [gvisor.dev/gvisor/pkg](https://pkg.go.dev/gvisor.dev/gvisor/pkg) ([Apache-2.0](https://github.com/google/gvisor/blob/162ed5ef888d/LICENSE))
+ - [golang.org/x/image](https://pkg.go.dev/golang.org/x/image) ([BSD-3-Clause](https://cs.opensource.google/go/x/image/+/v0.7.0:LICENSE))
+ - [golang.org/x/net](https://pkg.go.dev/golang.org/x/net) ([BSD-3-Clause](https://cs.opensource.google/go/x/net/+/v0.9.0:LICENSE))
+ - [golang.org/x/sync/errgroup](https://pkg.go.dev/golang.org/x/sync/errgroup) ([BSD-3-Clause](https://cs.opensource.google/go/x/sync/+/v0.2.0:LICENSE))
+ - [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) ([BSD-3-Clause](https://cs.opensource.google/go/x/sys/+/v0.8.0:LICENSE))
+ - [golang.org/x/term](https://pkg.go.dev/golang.org/x/term) ([BSD-3-Clause](https://cs.opensource.google/go/x/term/+/v0.7.0:LICENSE))
+ - [golang.org/x/text](https://pkg.go.dev/golang.org/x/text) ([BSD-3-Clause](https://cs.opensource.google/go/x/text/+/v0.9.0:LICENSE))
+ - [golang.org/x/time/rate](https://pkg.go.dev/golang.org/x/time/rate) ([BSD-3-Clause](https://cs.opensource.google/go/x/time/+/v0.3.0:LICENSE))
+ - [gvisor.dev/gvisor/pkg](https://pkg.go.dev/gvisor.dev/gvisor/pkg) ([Apache-2.0](https://github.com/google/gvisor/blob/7b0a1988a28f/LICENSE))
  - [inet.af/netaddr](https://pkg.go.dev/inet.af/netaddr) ([BSD-3-Clause](https://github.com/inetaf/netaddr/blob/097006376321/LICENSE))
  - [inet.af/peercred](https://pkg.go.dev/inet.af/peercred) ([BSD-3-Clause](https://github.com/inetaf/peercred/blob/0893ea02156a/LICENSE))
  - [nhooyr.io/websocket](https://pkg.go.dev/nhooyr.io/websocket) ([MIT](https://github.com/nhooyr/websocket/blob/v1.8.7/LICENSE.txt))

licenses/apple.md

@@ -10,62 +10,63 @@ and [iOS][].  See also the dependencies in the [Tailscale CLI][].
 ## Go Packages
 
 
- - [filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519) ([BSD-3-Clause](https://github.com/FiloSottile/edwards25519/blob/v1.0.0-rc.1/LICENSE))
- - [github.com/aws/aws-sdk-go-v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/v1.17.3/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/config](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/config) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/config/v1.17.7/config/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/credentials](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/credentials) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/credentials/v1.12.20/credentials/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/feature/ec2/imds](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/feature/ec2/imds) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/feature/ec2/imds/v1.12.17/feature/ec2/imds/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/configsources](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/configsources) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/configsources/v1.1.27/internal/configsources/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/endpoints/v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/endpoints/v2.4.21/internal/endpoints/v2/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/ini](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/ini) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/ini/v1.3.24/internal/ini/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/sync/singleflight](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/sync/singleflight) ([BSD-3-Clause](https://github.com/aws/aws-sdk-go-v2/blob/v1.17.3/internal/sync/singleflight/LICENSE))
- - [github.com/aws/aws-sdk-go-v2/service/internal/presigned-url](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/internal/presigned-url) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/internal/presigned-url/v1.9.17/service/internal/presigned-url/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/ssm](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssm) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssm/v1.35.0/service/ssm/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/sso](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sso) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sso/v1.11.23/service/sso/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/ssooidc](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssooidc) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssooidc/v1.13.5/service/ssooidc/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/sts](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sts) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sts/v1.16.19/service/sts/LICENSE.txt))
+ - [filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519) ([BSD-3-Clause](https://github.com/FiloSottile/edwards25519/blob/v1.0.0/LICENSE))
+ - [github.com/aws/aws-sdk-go-v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/v1.18.0/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/config](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/config) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/config/v1.18.22/config/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/credentials](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/credentials) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/credentials/v1.13.21/credentials/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/feature/ec2/imds](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/feature/ec2/imds) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/feature/ec2/imds/v1.13.3/feature/ec2/imds/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/configsources](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/configsources) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/configsources/v1.1.33/internal/configsources/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/endpoints/v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/endpoints/v2.4.27/internal/endpoints/v2/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/ini](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/ini) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/ini/v1.3.34/internal/ini/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/sync/singleflight](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/sync/singleflight) ([BSD-3-Clause](https://github.com/aws/aws-sdk-go-v2/blob/v1.18.0/internal/sync/singleflight/LICENSE))
+ - [github.com/aws/aws-sdk-go-v2/service/internal/presigned-url](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/internal/presigned-url) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/internal/presigned-url/v1.9.27/service/internal/presigned-url/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/ssm](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssm) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssm/v1.36.3/service/ssm/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/sso](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sso) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sso/v1.12.9/service/sso/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/ssooidc](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssooidc) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssooidc/v1.14.9/service/ssooidc/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/sts](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sts) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sts/v1.18.10/service/sts/LICENSE.txt))
  - [github.com/aws/smithy-go](https://pkg.go.dev/github.com/aws/smithy-go) ([Apache-2.0](https://github.com/aws/smithy-go/blob/v1.13.5/LICENSE))
  - [github.com/aws/smithy-go/internal/sync/singleflight](https://pkg.go.dev/github.com/aws/smithy-go/internal/sync/singleflight) ([BSD-3-Clause](https://github.com/aws/smithy-go/blob/v1.13.5/internal/sync/singleflight/LICENSE))
  - [github.com/coreos/go-iptables/iptables](https://pkg.go.dev/github.com/coreos/go-iptables/iptables) ([Apache-2.0](https://github.com/coreos/go-iptables/blob/v0.6.0/LICENSE))
  - [github.com/fxamacker/cbor/v2](https://pkg.go.dev/github.com/fxamacker/cbor/v2) ([MIT](https://github.com/fxamacker/cbor/blob/v2.4.0/LICENSE))
- - [github.com/godbus/dbus/v5](https://pkg.go.dev/github.com/godbus/dbus/v5) ([BSD-2-Clause](https://github.com/godbus/dbus/blob/v5.0.6/LICENSE))
+ - [github.com/godbus/dbus/v5](https://pkg.go.dev/github.com/godbus/dbus/v5) ([BSD-2-Clause](https://github.com/godbus/dbus/blob/v5.1.0/LICENSE))
  - [github.com/golang/groupcache/lru](https://pkg.go.dev/github.com/golang/groupcache/lru) ([Apache-2.0](https://github.com/golang/groupcache/blob/41bb18bfe9da/LICENSE))
  - [github.com/google/btree](https://pkg.go.dev/github.com/google/btree) ([Apache-2.0](https://github.com/google/btree/blob/v1.1.2/LICENSE))
- - [github.com/hdevalence/ed25519consensus](https://pkg.go.dev/github.com/hdevalence/ed25519consensus) ([BSD-3-Clause](https://github.com/hdevalence/ed25519consensus/blob/c00d1f31bab3/LICENSE))
+ - [github.com/hdevalence/ed25519consensus](https://pkg.go.dev/github.com/hdevalence/ed25519consensus) ([BSD-3-Clause](https://github.com/hdevalence/ed25519consensus/blob/v0.1.0/LICENSE))
  - [github.com/illarion/gonotify](https://pkg.go.dev/github.com/illarion/gonotify) ([MIT](https://github.com/illarion/gonotify/blob/v1.0.1/LICENSE))
- - [github.com/insomniacslk/dhcp](https://pkg.go.dev/github.com/insomniacslk/dhcp) ([BSD-3-Clause](https://github.com/insomniacslk/dhcp/blob/de60144f33f8/LICENSE))
+ - [github.com/insomniacslk/dhcp](https://pkg.go.dev/github.com/insomniacslk/dhcp) ([BSD-3-Clause](https://github.com/insomniacslk/dhcp/blob/974c6f05fe16/LICENSE))
  - [github.com/jmespath/go-jmespath](https://pkg.go.dev/github.com/jmespath/go-jmespath) ([Apache-2.0](https://github.com/jmespath/go-jmespath/blob/v0.4.0/LICENSE))
  - [github.com/josharian/native](https://pkg.go.dev/github.com/josharian/native) ([MIT](https://github.com/josharian/native/blob/5c7d0dd6ab86/license))
- - [github.com/jsimonetti/rtnetlink](https://pkg.go.dev/github.com/jsimonetti/rtnetlink) ([MIT](https://github.com/jsimonetti/rtnetlink/blob/d380b505068b/LICENSE.md))
- - [github.com/klauspost/compress](https://pkg.go.dev/github.com/klauspost/compress) ([Apache-2.0](https://github.com/klauspost/compress/blob/v1.15.11/LICENSE))
- - [github.com/klauspost/compress/internal/snapref](https://pkg.go.dev/github.com/klauspost/compress/internal/snapref) ([BSD-3-Clause](https://github.com/klauspost/compress/blob/v1.15.11/internal/snapref/LICENSE))
- - [github.com/klauspost/compress/zstd/internal/xxhash](https://pkg.go.dev/github.com/klauspost/compress/zstd/internal/xxhash) ([MIT](https://github.com/klauspost/compress/blob/v1.15.11/zstd/internal/xxhash/LICENSE.txt))
+ - [github.com/jsimonetti/rtnetlink](https://pkg.go.dev/github.com/jsimonetti/rtnetlink) ([MIT](https://github.com/jsimonetti/rtnetlink/blob/v1.3.2/LICENSE.md))
+ - [github.com/klauspost/compress](https://pkg.go.dev/github.com/klauspost/compress) ([Apache-2.0](https://github.com/klauspost/compress/blob/v1.16.5/LICENSE))
+ - [github.com/klauspost/compress/internal/snapref](https://pkg.go.dev/github.com/klauspost/compress/internal/snapref) ([BSD-3-Clause](https://github.com/klauspost/compress/blob/v1.16.5/internal/snapref/LICENSE))
+ - [github.com/klauspost/compress/zstd/internal/xxhash](https://pkg.go.dev/github.com/klauspost/compress/zstd/internal/xxhash) ([MIT](https://github.com/klauspost/compress/blob/v1.16.5/zstd/internal/xxhash/LICENSE.txt))
  - [github.com/kortschak/wol](https://pkg.go.dev/github.com/kortschak/wol) ([BSD-3-Clause](https://github.com/kortschak/wol/blob/da482cc4850a/LICENSE))
- - [github.com/mdlayher/genetlink](https://pkg.go.dev/github.com/mdlayher/genetlink) ([MIT](https://github.com/mdlayher/genetlink/blob/v1.2.0/LICENSE.md))
- - [github.com/mdlayher/netlink](https://pkg.go.dev/github.com/mdlayher/netlink) ([MIT](https://github.com/mdlayher/netlink/blob/v1.7.1/LICENSE.md))
+ - [github.com/mdlayher/genetlink](https://pkg.go.dev/github.com/mdlayher/genetlink) ([MIT](https://github.com/mdlayher/genetlink/blob/v1.3.2/LICENSE.md))
+ - [github.com/mdlayher/netlink](https://pkg.go.dev/github.com/mdlayher/netlink) ([MIT](https://github.com/mdlayher/netlink/blob/v1.7.2/LICENSE.md))
  - [github.com/mdlayher/sdnotify](https://pkg.go.dev/github.com/mdlayher/sdnotify) ([MIT](https://github.com/mdlayher/sdnotify/blob/v1.0.0/LICENSE.md))
- - [github.com/mdlayher/socket](https://pkg.go.dev/github.com/mdlayher/socket) ([MIT](https://github.com/mdlayher/socket/blob/v0.4.0/LICENSE.md))
+ - [github.com/mdlayher/socket](https://pkg.go.dev/github.com/mdlayher/socket) ([MIT](https://github.com/mdlayher/socket/blob/v0.4.1/LICENSE.md))
  - [github.com/mitchellh/go-ps](https://pkg.go.dev/github.com/mitchellh/go-ps) ([MIT](https://github.com/mitchellh/go-ps/blob/v1.0.0/LICENSE.md))
- - [github.com/tailscale/golang-x-crypto](https://pkg.go.dev/github.com/tailscale/golang-x-crypto) ([BSD-3-Clause](https://github.com/tailscale/golang-x-crypto/blob/bc99ab8c2d17/LICENSE))
+ - [github.com/pierrec/lz4/v4](https://pkg.go.dev/github.com/pierrec/lz4/v4) ([BSD-3-Clause](https://github.com/pierrec/lz4/blob/v4.1.17/LICENSE))
+ - [github.com/tailscale/golang-x-crypto](https://pkg.go.dev/github.com/tailscale/golang-x-crypto) ([BSD-3-Clause](https://github.com/tailscale/golang-x-crypto/blob/17a3db2c30d2/LICENSE))
  - [github.com/tailscale/goupnp](https://pkg.go.dev/github.com/tailscale/goupnp) ([BSD-2-Clause](https://github.com/tailscale/goupnp/blob/c64d0f06ea05/LICENSE))
  - [github.com/tailscale/netlink](https://pkg.go.dev/github.com/tailscale/netlink) ([Apache-2.0](https://github.com/tailscale/netlink/blob/cabfb018fe85/LICENSE))
  - [github.com/tailscale/wireguard-go](https://pkg.go.dev/github.com/tailscale/wireguard-go) ([MIT](https://github.com/tailscale/wireguard-go/blob/af172621b4dd/LICENSE))
  - [github.com/tcnksm/go-httpstat](https://pkg.go.dev/github.com/tcnksm/go-httpstat) ([MIT](https://github.com/tcnksm/go-httpstat/blob/v0.2.0/LICENSE))
- - [github.com/u-root/uio](https://pkg.go.dev/github.com/u-root/uio) ([BSD-3-Clause](https://github.com/u-root/uio/blob/c3537552635f/LICENSE))
- - [github.com/vishvananda/netlink/nl](https://pkg.go.dev/github.com/vishvananda/netlink/nl) ([Apache-2.0](https://github.com/vishvananda/netlink/blob/650dca95af54/LICENSE))
- - [github.com/vishvananda/netns](https://pkg.go.dev/github.com/vishvananda/netns) ([Apache-2.0](https://github.com/vishvananda/netns/blob/50045581ed74/LICENSE))
+ - [github.com/u-root/uio](https://pkg.go.dev/github.com/u-root/uio) ([BSD-3-Clause](https://github.com/u-root/uio/blob/3e8cd9d6bf63/LICENSE))
+ - [github.com/vishvananda/netlink/nl](https://pkg.go.dev/github.com/vishvananda/netlink/nl) ([Apache-2.0](https://github.com/vishvananda/netlink/blob/v1.2.1-beta.2/LICENSE))
+ - [github.com/vishvananda/netns](https://pkg.go.dev/github.com/vishvananda/netns) ([Apache-2.0](https://github.com/vishvananda/netns/blob/v0.0.4/LICENSE))
  - [github.com/x448/float16](https://pkg.go.dev/github.com/x448/float16) ([MIT](https://github.com/x448/float16/blob/v0.8.4/LICENSE))
  - [go4.org/mem](https://pkg.go.dev/go4.org/mem) ([Apache-2.0](https://github.com/go4org/mem/blob/4f986261bf13/LICENSE))
- - [go4.org/netipx](https://pkg.go.dev/go4.org/netipx) ([BSD-3-Clause](https://github.com/go4org/netipx/blob/7e7bdc8411bf/LICENSE))
- - [golang.org/x/crypto](https://pkg.go.dev/golang.org/x/crypto) ([BSD-3-Clause](https://cs.opensource.google/go/x/crypto/+/v0.6.0:LICENSE))
- - [golang.org/x/exp](https://pkg.go.dev/golang.org/x/exp) ([BSD-3-Clause](https://cs.opensource.google/go/x/exp/+/cafedaf6:LICENSE))
- - [golang.org/x/net](https://pkg.go.dev/golang.org/x/net) ([BSD-3-Clause](https://cs.opensource.google/go/x/net/+/v0.8.0:LICENSE))
- - [golang.org/x/sync/errgroup](https://pkg.go.dev/golang.org/x/sync/errgroup) ([BSD-3-Clause](https://cs.opensource.google/go/x/sync/+/v0.1.0:LICENSE))
- - [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) ([BSD-3-Clause](https://cs.opensource.google/go/x/sys/+/v0.6.0:LICENSE))
- - [golang.org/x/term](https://pkg.go.dev/golang.org/x/term) ([BSD-3-Clause](https://cs.opensource.google/go/x/term/+/v0.6.0:LICENSE))
- - [golang.org/x/text](https://pkg.go.dev/golang.org/x/text) ([BSD-3-Clause](https://cs.opensource.google/go/x/text/+/v0.8.0:LICENSE))
- - [golang.org/x/time/rate](https://pkg.go.dev/golang.org/x/time/rate) ([BSD-3-Clause](https://cs.opensource.google/go/x/time/+/579cf78f:LICENSE))
- - [gvisor.dev/gvisor/pkg](https://pkg.go.dev/gvisor.dev/gvisor/pkg) ([Apache-2.0](https://github.com/google/gvisor/blob/162ed5ef888d/LICENSE))
+ - [go4.org/netipx](https://pkg.go.dev/go4.org/netipx) ([BSD-3-Clause](https://github.com/go4org/netipx/blob/f1b76eb4bb35/LICENSE))
+ - [golang.org/x/crypto](https://pkg.go.dev/golang.org/x/crypto) ([BSD-3-Clause](https://cs.opensource.google/go/x/crypto/+/v0.8.0:LICENSE))
+ - [golang.org/x/exp](https://pkg.go.dev/golang.org/x/exp) ([BSD-3-Clause](https://cs.opensource.google/go/x/exp/+/47ecfdc1:LICENSE))
+ - [golang.org/x/net](https://pkg.go.dev/golang.org/x/net) ([BSD-3-Clause](https://cs.opensource.google/go/x/net/+/v0.10.0:LICENSE))
+ - [golang.org/x/sync/errgroup](https://pkg.go.dev/golang.org/x/sync/errgroup) ([BSD-3-Clause](https://cs.opensource.google/go/x/sync/+/v0.2.0:LICENSE))
+ - [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) ([BSD-3-Clause](https://cs.opensource.google/go/x/sys/+/v0.8.0:LICENSE))
+ - [golang.org/x/term](https://pkg.go.dev/golang.org/x/term) ([BSD-3-Clause](https://cs.opensource.google/go/x/term/+/v0.8.0:LICENSE))
+ - [golang.org/x/text](https://pkg.go.dev/golang.org/x/text) ([BSD-3-Clause](https://cs.opensource.google/go/x/text/+/v0.9.0:LICENSE))
+ - [golang.org/x/time/rate](https://pkg.go.dev/golang.org/x/time/rate) ([BSD-3-Clause](https://cs.opensource.google/go/x/time/+/v0.3.0:LICENSE))
+ - [gvisor.dev/gvisor/pkg](https://pkg.go.dev/gvisor.dev/gvisor/pkg) ([Apache-2.0](https://github.com/google/gvisor/blob/7b0a1988a28f/LICENSE))
  - [inet.af/peercred](https://pkg.go.dev/inet.af/peercred) ([BSD-3-Clause](https://github.com/inetaf/peercred/blob/0893ea02156a/LICENSE))
  - [nhooyr.io/websocket](https://pkg.go.dev/nhooyr.io/websocket) ([MIT](https://github.com/nhooyr/websocket/blob/v1.8.7/LICENSE.txt))
  - [tailscale.com](https://pkg.go.dev/tailscale.com) ([BSD-3-Clause](https://github.com/tailscale/tailscale/blob/HEAD/LICENSE))

licenses/tailscale.md

@@ -13,85 +13,88 @@ well as an [option for macOS][].
 Some packages may only be included on certain architectures or operating systems.
 
 
- - [filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519) ([BSD-3-Clause](https://github.com/FiloSottile/edwards25519/blob/v1.0.0-rc.1/LICENSE))
- - [github.com/Microsoft/go-winio](https://pkg.go.dev/github.com/Microsoft/go-winio) ([MIT](https://github.com/Microsoft/go-winio/blob/v0.6.0/LICENSE))
+ - [filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519) ([BSD-3-Clause](https://github.com/FiloSottile/edwards25519/blob/v1.0.0/LICENSE))
+ - [github.com/Microsoft/go-winio](https://pkg.go.dev/github.com/Microsoft/go-winio) ([MIT](https://github.com/Microsoft/go-winio/blob/v0.6.1/LICENSE))
  - [github.com/akutz/memconn](https://pkg.go.dev/github.com/akutz/memconn) ([Apache-2.0](https://github.com/akutz/memconn/blob/v0.1.0/LICENSE))
  - [github.com/alexbrainman/sspi](https://pkg.go.dev/github.com/alexbrainman/sspi) ([BSD-3-Clause](https://github.com/alexbrainman/sspi/blob/909beea2cc74/LICENSE))
  - [github.com/anmitsu/go-shlex](https://pkg.go.dev/github.com/anmitsu/go-shlex) ([MIT](https://github.com/anmitsu/go-shlex/blob/38f4b401e2be/LICENSE))
- - [github.com/aws/aws-sdk-go-v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/v1.17.3/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/config](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/config) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/config/v1.11.0/config/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/credentials](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/credentials) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/credentials/v1.6.4/credentials/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/feature/ec2/imds](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/feature/ec2/imds) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/feature/ec2/imds/v1.8.2/feature/ec2/imds/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/configsources](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/configsources) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/configsources/v1.1.27/internal/configsources/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/endpoints/v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/endpoints/v2.4.21/internal/endpoints/v2/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/ini](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/ini) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/ini/v1.3.2/internal/ini/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/internal/sync/singleflight](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/sync/singleflight) ([BSD-3-Clause](https://github.com/aws/aws-sdk-go-v2/blob/v1.17.3/internal/sync/singleflight/LICENSE))
- - [github.com/aws/aws-sdk-go-v2/service/internal/presigned-url](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/internal/presigned-url) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/internal/presigned-url/v1.5.2/service/internal/presigned-url/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/ssm](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssm) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssm/v1.35.0/service/ssm/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/sso](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sso) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sso/v1.6.2/service/sso/LICENSE.txt))
- - [github.com/aws/aws-sdk-go-v2/service/sts](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sts) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sts/v1.11.1/service/sts/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/v1.18.0/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/config](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/config) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/config/v1.18.22/config/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/credentials](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/credentials) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/credentials/v1.13.21/credentials/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/feature/ec2/imds](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/feature/ec2/imds) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/feature/ec2/imds/v1.13.3/feature/ec2/imds/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/configsources](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/configsources) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/configsources/v1.1.33/internal/configsources/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/endpoints/v2](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/endpoints/v2) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/endpoints/v2.4.27/internal/endpoints/v2/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/ini](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/ini) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/internal/ini/v1.3.34/internal/ini/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/internal/sync/singleflight](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/internal/sync/singleflight) ([BSD-3-Clause](https://github.com/aws/aws-sdk-go-v2/blob/v1.18.0/internal/sync/singleflight/LICENSE))
+ - [github.com/aws/aws-sdk-go-v2/service/internal/presigned-url](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/internal/presigned-url) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/internal/presigned-url/v1.9.27/service/internal/presigned-url/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/ssm](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssm) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssm/v1.36.3/service/ssm/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/sso](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sso) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sso/v1.12.9/service/sso/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/ssooidc](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/ssooidc) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/ssooidc/v1.14.9/service/ssooidc/LICENSE.txt))
+ - [github.com/aws/aws-sdk-go-v2/service/sts](https://pkg.go.dev/github.com/aws/aws-sdk-go-v2/service/sts) ([Apache-2.0](https://github.com/aws/aws-sdk-go-v2/blob/service/sts/v1.18.10/service/sts/LICENSE.txt))
  - [github.com/aws/smithy-go](https://pkg.go.dev/github.com/aws/smithy-go) ([Apache-2.0](https://github.com/aws/smithy-go/blob/v1.13.5/LICENSE))
  - [github.com/aws/smithy-go/internal/sync/singleflight](https://pkg.go.dev/github.com/aws/smithy-go/internal/sync/singleflight) ([BSD-3-Clause](https://github.com/aws/smithy-go/blob/v1.13.5/internal/sync/singleflight/LICENSE))
  - [github.com/coreos/go-iptables/iptables](https://pkg.go.dev/github.com/coreos/go-iptables/iptables) ([Apache-2.0](https://github.com/coreos/go-iptables/blob/v0.6.0/LICENSE))
- - [github.com/creack/pty](https://pkg.go.dev/github.com/creack/pty) ([MIT](https://github.com/creack/pty/blob/v1.1.17/LICENSE))
- - [github.com/dblohm7/wingoes](https://pkg.go.dev/github.com/dblohm7/wingoes) ([BSD-3-Clause](https://github.com/dblohm7/wingoes/blob/6ac47ab19aa5/LICENSE))
+ - [github.com/creack/pty](https://pkg.go.dev/github.com/creack/pty) ([MIT](https://github.com/creack/pty/blob/v1.1.18/LICENSE))
+ - [github.com/dblohm7/wingoes](https://pkg.go.dev/github.com/dblohm7/wingoes) ([BSD-3-Clause](https://github.com/dblohm7/wingoes/blob/111c8c3b57c8/LICENSE))
  - [github.com/fxamacker/cbor/v2](https://pkg.go.dev/github.com/fxamacker/cbor/v2) ([MIT](https://github.com/fxamacker/cbor/blob/v2.4.0/LICENSE))
  - [github.com/go-ole/go-ole](https://pkg.go.dev/github.com/go-ole/go-ole) ([MIT](https://github.com/go-ole/go-ole/blob/v1.2.6/LICENSE))
- - [github.com/godbus/dbus/v5](https://pkg.go.dev/github.com/godbus/dbus/v5) ([BSD-2-Clause](https://github.com/godbus/dbus/blob/v5.0.6/LICENSE))
+ - [github.com/godbus/dbus/v5](https://pkg.go.dev/github.com/godbus/dbus/v5) ([BSD-2-Clause](https://github.com/godbus/dbus/blob/v5.1.0/LICENSE))
  - [github.com/golang/groupcache/lru](https://pkg.go.dev/github.com/golang/groupcache/lru) ([Apache-2.0](https://github.com/golang/groupcache/blob/41bb18bfe9da/LICENSE))
- - [github.com/google/btree](https://pkg.go.dev/github.com/google/btree) ([Apache-2.0](https://github.com/google/btree/blob/v1.0.1/LICENSE))
+ - [github.com/google/btree](https://pkg.go.dev/github.com/google/btree) ([Apache-2.0](https://github.com/google/btree/blob/v1.1.2/LICENSE))
  - [github.com/google/uuid](https://pkg.go.dev/github.com/google/uuid) ([BSD-3-Clause](https://github.com/google/uuid/blob/v1.3.0/LICENSE))
- - [github.com/hdevalence/ed25519consensus](https://pkg.go.dev/github.com/hdevalence/ed25519consensus) ([BSD-3-Clause](https://github.com/hdevalence/ed25519consensus/blob/c00d1f31bab3/LICENSE))
+ - [github.com/hdevalence/ed25519consensus](https://pkg.go.dev/github.com/hdevalence/ed25519consensus) ([BSD-3-Clause](https://github.com/hdevalence/ed25519consensus/blob/v0.1.0/LICENSE))
  - [github.com/illarion/gonotify](https://pkg.go.dev/github.com/illarion/gonotify) ([MIT](https://github.com/illarion/gonotify/blob/v1.0.1/LICENSE))
- - [github.com/insomniacslk/dhcp](https://pkg.go.dev/github.com/insomniacslk/dhcp) ([BSD-3-Clause](https://github.com/insomniacslk/dhcp/blob/de60144f33f8/LICENSE))
+ - [github.com/insomniacslk/dhcp](https://pkg.go.dev/github.com/insomniacslk/dhcp) ([BSD-3-Clause](https://github.com/insomniacslk/dhcp/blob/974c6f05fe16/LICENSE))
  - [github.com/jmespath/go-jmespath](https://pkg.go.dev/github.com/jmespath/go-jmespath) ([Apache-2.0](https://github.com/jmespath/go-jmespath/blob/v0.4.0/LICENSE))
  - [github.com/josharian/native](https://pkg.go.dev/github.com/josharian/native) ([MIT](https://github.com/josharian/native/blob/5c7d0dd6ab86/license))
- - [github.com/jsimonetti/rtnetlink](https://pkg.go.dev/github.com/jsimonetti/rtnetlink) ([MIT](https://github.com/jsimonetti/rtnetlink/blob/d380b505068b/LICENSE.md))
+ - [github.com/jsimonetti/rtnetlink](https://pkg.go.dev/github.com/jsimonetti/rtnetlink) ([MIT](https://github.com/jsimonetti/rtnetlink/blob/v1.3.2/LICENSE.md))
  - [github.com/kballard/go-shellquote](https://pkg.go.dev/github.com/kballard/go-shellquote) ([MIT](https://github.com/kballard/go-shellquote/blob/95032a82bc51/LICENSE))
- - [github.com/klauspost/compress](https://pkg.go.dev/github.com/klauspost/compress) ([Apache-2.0](https://github.com/klauspost/compress/blob/v1.15.4/LICENSE))
- - [github.com/klauspost/compress/internal/snapref](https://pkg.go.dev/github.com/klauspost/compress/internal/snapref) ([BSD-3-Clause](https://github.com/klauspost/compress/blob/v1.15.4/internal/snapref/LICENSE))
- - [github.com/klauspost/compress/zstd/internal/xxhash](https://pkg.go.dev/github.com/klauspost/compress/zstd/internal/xxhash) ([MIT](https://github.com/klauspost/compress/blob/v1.15.4/zstd/internal/xxhash/LICENSE.txt))
+ - [github.com/klauspost/compress](https://pkg.go.dev/github.com/klauspost/compress) ([Apache-2.0](https://github.com/klauspost/compress/blob/v1.16.5/LICENSE))
+ - [github.com/klauspost/compress/internal/snapref](https://pkg.go.dev/github.com/klauspost/compress/internal/snapref) ([BSD-3-Clause](https://github.com/klauspost/compress/blob/v1.16.5/internal/snapref/LICENSE))
+ - [github.com/klauspost/compress/zstd/internal/xxhash](https://pkg.go.dev/github.com/klauspost/compress/zstd/internal/xxhash) ([MIT](https://github.com/klauspost/compress/blob/v1.16.5/zstd/internal/xxhash/LICENSE.txt))
  - [github.com/kortschak/wol](https://pkg.go.dev/github.com/kortschak/wol) ([BSD-3-Clause](https://github.com/kortschak/wol/blob/da482cc4850a/LICENSE))
  - [github.com/kr/fs](https://pkg.go.dev/github.com/kr/fs) ([BSD-3-Clause](https://github.com/kr/fs/blob/v0.1.0/LICENSE))
  - [github.com/mattn/go-colorable](https://pkg.go.dev/github.com/mattn/go-colorable) ([MIT](https://github.com/mattn/go-colorable/blob/v0.1.13/LICENSE))
- - [github.com/mattn/go-isatty](https://pkg.go.dev/github.com/mattn/go-isatty) ([MIT](https://github.com/mattn/go-isatty/blob/v0.0.17/LICENSE))
- - [github.com/mdlayher/genetlink](https://pkg.go.dev/github.com/mdlayher/genetlink) ([MIT](https://github.com/mdlayher/genetlink/blob/v1.2.0/LICENSE.md))
- - [github.com/mdlayher/netlink](https://pkg.go.dev/github.com/mdlayher/netlink) ([MIT](https://github.com/mdlayher/netlink/blob/v1.7.1/LICENSE.md))
+ - [github.com/mattn/go-isatty](https://pkg.go.dev/github.com/mattn/go-isatty) ([MIT](https://github.com/mattn/go-isatty/blob/v0.0.18/LICENSE))
+ - [github.com/mdlayher/genetlink](https://pkg.go.dev/github.com/mdlayher/genetlink) ([MIT](https://github.com/mdlayher/genetlink/blob/v1.3.2/LICENSE.md))
+ - [github.com/mdlayher/netlink](https://pkg.go.dev/github.com/mdlayher/netlink) ([MIT](https://github.com/mdlayher/netlink/blob/v1.7.2/LICENSE.md))
  - [github.com/mdlayher/sdnotify](https://pkg.go.dev/github.com/mdlayher/sdnotify) ([MIT](https://github.com/mdlayher/sdnotify/blob/v1.0.0/LICENSE.md))
- - [github.com/mdlayher/socket](https://pkg.go.dev/github.com/mdlayher/socket) ([MIT](https://github.com/mdlayher/socket/blob/v0.4.0/LICENSE.md))
+ - [github.com/mdlayher/socket](https://pkg.go.dev/github.com/mdlayher/socket) ([MIT](https://github.com/mdlayher/socket/blob/v0.4.1/LICENSE.md))
  - [github.com/mitchellh/go-ps](https://pkg.go.dev/github.com/mitchellh/go-ps) ([MIT](https://github.com/mitchellh/go-ps/blob/v1.0.0/LICENSE.md))
- - [github.com/peterbourgon/ff/v3](https://pkg.go.dev/github.com/peterbourgon/ff/v3) ([Apache-2.0](https://github.com/peterbourgon/ff/blob/v3.1.2/LICENSE))
+ - [github.com/peterbourgon/ff/v3](https://pkg.go.dev/github.com/peterbourgon/ff/v3) ([Apache-2.0](https://github.com/peterbourgon/ff/blob/v3.3.0/LICENSE))
+ - [github.com/pierrec/lz4/v4](https://pkg.go.dev/github.com/pierrec/lz4/v4) ([BSD-3-Clause](https://github.com/pierrec/lz4/blob/v4.1.17/LICENSE))
  - [github.com/pkg/errors](https://pkg.go.dev/github.com/pkg/errors) ([BSD-2-Clause](https://github.com/pkg/errors/blob/v0.9.1/LICENSE))
- - [github.com/pkg/sftp](https://pkg.go.dev/github.com/pkg/sftp) ([BSD-2-Clause](https://github.com/pkg/sftp/blob/v1.13.4/LICENSE))
+ - [github.com/pkg/sftp](https://pkg.go.dev/github.com/pkg/sftp) ([BSD-2-Clause](https://github.com/pkg/sftp/blob/v1.13.5/LICENSE))
  - [github.com/skip2/go-qrcode](https://pkg.go.dev/github.com/skip2/go-qrcode) ([MIT](https://github.com/skip2/go-qrcode/blob/da1b6568686e/LICENSE))
  - [github.com/tailscale/certstore](https://pkg.go.dev/github.com/tailscale/certstore) ([MIT](https://github.com/tailscale/certstore/blob/78d6e1c49d8d/LICENSE.md))
- - [github.com/tailscale/golang-x-crypto](https://pkg.go.dev/github.com/tailscale/golang-x-crypto) ([BSD-3-Clause](https://github.com/tailscale/golang-x-crypto/blob/bc99ab8c2d17/LICENSE))
+ - [github.com/tailscale/golang-x-crypto](https://pkg.go.dev/github.com/tailscale/golang-x-crypto) ([BSD-3-Clause](https://github.com/tailscale/golang-x-crypto/blob/17a3db2c30d2/LICENSE))
  - [github.com/tailscale/netlink](https://pkg.go.dev/github.com/tailscale/netlink) ([Apache-2.0](https://github.com/tailscale/netlink/blob/cabfb018fe85/LICENSE))
  - [github.com/tailscale/wireguard-go](https://pkg.go.dev/github.com/tailscale/wireguard-go) ([MIT](https://github.com/tailscale/wireguard-go/blob/af172621b4dd/LICENSE))
  - [github.com/tcnksm/go-httpstat](https://pkg.go.dev/github.com/tcnksm/go-httpstat) ([MIT](https://github.com/tcnksm/go-httpstat/blob/v0.2.0/LICENSE))
  - [github.com/toqueteos/webbrowser](https://pkg.go.dev/github.com/toqueteos/webbrowser) ([MIT](https://github.com/toqueteos/webbrowser/blob/v1.2.0/LICENSE.md))
- - [github.com/u-root/u-root/pkg/termios](https://pkg.go.dev/github.com/u-root/u-root/pkg/termios) ([BSD-3-Clause](https://github.com/u-root/u-root/blob/948a78c969ad/LICENSE))
- - [github.com/u-root/uio](https://pkg.go.dev/github.com/u-root/uio) ([BSD-3-Clause](https://github.com/u-root/uio/blob/c3537552635f/LICENSE))
- - [github.com/vishvananda/netlink/nl](https://pkg.go.dev/github.com/vishvananda/netlink/nl) ([Apache-2.0](https://github.com/vishvananda/netlink/blob/650dca95af54/LICENSE))
- - [github.com/vishvananda/netns](https://pkg.go.dev/github.com/vishvananda/netns) ([Apache-2.0](https://github.com/vishvananda/netns/blob/50045581ed74/LICENSE))
+ - [github.com/u-root/u-root/pkg/termios](https://pkg.go.dev/github.com/u-root/u-root/pkg/termios) ([BSD-3-Clause](https://github.com/u-root/u-root/blob/v0.11.0/LICENSE))
+ - [github.com/u-root/uio](https://pkg.go.dev/github.com/u-root/uio) ([BSD-3-Clause](https://github.com/u-root/uio/blob/3e8cd9d6bf63/LICENSE))
+ - [github.com/vishvananda/netlink/nl](https://pkg.go.dev/github.com/vishvananda/netlink/nl) ([Apache-2.0](https://github.com/vishvananda/netlink/blob/v1.2.1-beta.2/LICENSE))
+ - [github.com/vishvananda/netns](https://pkg.go.dev/github.com/vishvananda/netns) ([Apache-2.0](https://github.com/vishvananda/netns/blob/v0.0.4/LICENSE))
  - [github.com/x448/float16](https://pkg.go.dev/github.com/x448/float16) ([MIT](https://github.com/x448/float16/blob/v0.8.4/LICENSE))
- - [go4.org/mem](https://pkg.go.dev/go4.org/mem) ([Apache-2.0](https://github.com/go4org/mem/blob/927187094b94/LICENSE))
- - [go4.org/netipx](https://pkg.go.dev/go4.org/netipx) ([BSD-3-Clause](https://github.com/go4org/netipx/blob/7e7bdc8411bf/LICENSE))
- - [golang.org/x/crypto](https://pkg.go.dev/golang.org/x/crypto) ([BSD-3-Clause](https://cs.opensource.google/go/x/crypto/+/v0.6.0:LICENSE))
- - [golang.org/x/exp](https://pkg.go.dev/golang.org/x/exp) ([BSD-3-Clause](https://cs.opensource.google/go/x/exp/+/47842c84:LICENSE))
- - [golang.org/x/net](https://pkg.go.dev/golang.org/x/net) ([BSD-3-Clause](https://cs.opensource.google/go/x/net/+/v0.8.0:LICENSE))
- - [golang.org/x/sync/errgroup](https://pkg.go.dev/golang.org/x/sync/errgroup) ([BSD-3-Clause](https://cs.opensource.google/go/x/sync/+/v0.1.0:LICENSE))
- - [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) ([BSD-3-Clause](https://cs.opensource.google/go/x/sys/+/v0.6.0:LICENSE))
- - [golang.org/x/term](https://pkg.go.dev/golang.org/x/term) ([BSD-3-Clause](https://cs.opensource.google/go/x/term/+/v0.6.0:LICENSE))
- - [golang.org/x/text](https://pkg.go.dev/golang.org/x/text) ([BSD-3-Clause](https://cs.opensource.google/go/x/text/+/v0.8.0:LICENSE))
- - [golang.org/x/time/rate](https://pkg.go.dev/golang.org/x/time/rate) ([BSD-3-Clause](https://cs.opensource.google/go/x/time/+/579cf78f:LICENSE))
+ - [go4.org/mem](https://pkg.go.dev/go4.org/mem) ([Apache-2.0](https://github.com/go4org/mem/blob/4f986261bf13/LICENSE))
+ - [go4.org/netipx](https://pkg.go.dev/go4.org/netipx) ([BSD-3-Clause](https://github.com/go4org/netipx/blob/f1b76eb4bb35/LICENSE))
+ - [golang.org/x/crypto](https://pkg.go.dev/golang.org/x/crypto) ([BSD-3-Clause](https://cs.opensource.google/go/x/crypto/+/v0.8.0:LICENSE))
+ - [golang.org/x/exp](https://pkg.go.dev/golang.org/x/exp) ([BSD-3-Clause](https://cs.opensource.google/go/x/exp/+/47ecfdc1:LICENSE))
+ - [golang.org/x/net](https://pkg.go.dev/golang.org/x/net) ([BSD-3-Clause](https://cs.opensource.google/go/x/net/+/v0.10.0:LICENSE))
+ - [golang.org/x/oauth2](https://pkg.go.dev/golang.org/x/oauth2) ([BSD-3-Clause](https://cs.opensource.google/go/x/oauth2/+/v0.7.0:LICENSE))
+ - [golang.org/x/sync/errgroup](https://pkg.go.dev/golang.org/x/sync/errgroup) ([BSD-3-Clause](https://cs.opensource.google/go/x/sync/+/v0.2.0:LICENSE))
+ - [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) ([BSD-3-Clause](https://cs.opensource.google/go/x/sys/+/v0.8.0:LICENSE))
+ - [golang.org/x/term](https://pkg.go.dev/golang.org/x/term) ([BSD-3-Clause](https://cs.opensource.google/go/x/term/+/v0.8.0:LICENSE))
+ - [golang.org/x/text](https://pkg.go.dev/golang.org/x/text) ([BSD-3-Clause](https://cs.opensource.google/go/x/text/+/v0.9.0:LICENSE))
+ - [golang.org/x/time/rate](https://pkg.go.dev/golang.org/x/time/rate) ([BSD-3-Clause](https://cs.opensource.google/go/x/time/+/v0.3.0:LICENSE))
  - [golang.zx2c4.com/wintun](https://pkg.go.dev/golang.zx2c4.com/wintun) ([MIT](https://git.zx2c4.com/wintun-go/tree/LICENSE?id=0fa3db229ce2))
  - [golang.zx2c4.com/wireguard/windows/tunnel/winipcfg](https://pkg.go.dev/golang.zx2c4.com/wireguard/windows/tunnel/winipcfg) ([MIT](https://git.zx2c4.com/wireguard-windows/tree/COPYING?h=v0.5.3))
  - [gopkg.in/yaml.v2](https://pkg.go.dev/gopkg.in/yaml.v2) ([Apache-2.0](https://github.com/go-yaml/yaml/blob/v2.4.0/LICENSE))
- - [gvisor.dev/gvisor/pkg](https://pkg.go.dev/gvisor.dev/gvisor/pkg) ([Apache-2.0](https://github.com/google/gvisor/blob/162ed5ef888d/LICENSE))
+ - [gvisor.dev/gvisor/pkg](https://pkg.go.dev/gvisor.dev/gvisor/pkg) ([Apache-2.0](https://github.com/google/gvisor/blob/7b0a1988a28f/LICENSE))
  - [inet.af/peercred](https://pkg.go.dev/inet.af/peercred) ([BSD-3-Clause](https://github.com/inetaf/peercred/blob/0893ea02156a/LICENSE))
- - [inet.af/wf](https://pkg.go.dev/inet.af/wf) ([BSD-3-Clause](https://github.com/inetaf/wf/blob/50d96caab2f6/LICENSE))
- - [k8s.io/client-go/util/homedir](https://pkg.go.dev/k8s.io/client-go/util/homedir) ([Apache-2.0](https://github.com/kubernetes/client-go/blob/v0.25.0/LICENSE))
+ - [inet.af/wf](https://pkg.go.dev/inet.af/wf) ([BSD-3-Clause](https://github.com/inetaf/wf/blob/36129f591884/LICENSE))
+ - [k8s.io/client-go/util/homedir](https://pkg.go.dev/k8s.io/client-go/util/homedir) ([Apache-2.0](https://github.com/kubernetes/client-go/blob/v0.27.2/LICENSE))
  - [nhooyr.io/websocket](https://pkg.go.dev/nhooyr.io/websocket) ([MIT](https://github.com/nhooyr/websocket/blob/v1.8.7/LICENSE.txt))
  - [sigs.k8s.io/yaml](https://pkg.go.dev/sigs.k8s.io/yaml) ([MIT](https://github.com/kubernetes-sigs/yaml/blob/v1.3.0/LICENSE))
  - [software.sslmate.com/src/go-pkcs12](https://pkg.go.dev/software.sslmate.com/src/go-pkcs12) ([BSD-3-Clause](https://github.com/SSLMate/go-pkcs12/blob/v0.2.0/LICENSE))

licenses/windows.md

@@ -9,44 +9,44 @@ Windows][].  See also the dependencies in the [Tailscale CLI][].
 ## Go Packages
 
 
- - [filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519) ([BSD-3-Clause](https://github.com/FiloSottile/edwards25519/blob/v1.0.0-rc.1/LICENSE))
- - [github.com/Microsoft/go-winio](https://pkg.go.dev/github.com/Microsoft/go-winio) ([MIT](https://github.com/Microsoft/go-winio/blob/v0.6.0/LICENSE))
+ - [filippo.io/edwards25519](https://pkg.go.dev/filippo.io/edwards25519) ([BSD-3-Clause](https://github.com/FiloSottile/edwards25519/blob/v1.0.0/LICENSE))
+ - [github.com/Microsoft/go-winio](https://pkg.go.dev/github.com/Microsoft/go-winio) ([MIT](https://github.com/Microsoft/go-winio/blob/v0.6.1/LICENSE))
  - [github.com/alexbrainman/sspi](https://pkg.go.dev/github.com/alexbrainman/sspi) ([BSD-3-Clause](https://github.com/alexbrainman/sspi/blob/909beea2cc74/LICENSE))
  - [github.com/apenwarr/fixconsole](https://pkg.go.dev/github.com/apenwarr/fixconsole) ([Apache-2.0](https://github.com/apenwarr/fixconsole/blob/5a9f6489cc29/LICENSE))
  - [github.com/apenwarr/w32](https://pkg.go.dev/github.com/apenwarr/w32) ([BSD-3-Clause](https://github.com/apenwarr/w32/blob/aa00fece76ab/LICENSE))
- - [github.com/dblohm7/wingoes](https://pkg.go.dev/github.com/dblohm7/wingoes) ([BSD-3-Clause](https://github.com/dblohm7/wingoes/blob/2b26ab7fb5f9/LICENSE))
+ - [github.com/dblohm7/wingoes](https://pkg.go.dev/github.com/dblohm7/wingoes) ([BSD-3-Clause](https://github.com/dblohm7/wingoes/blob/111c8c3b57c8/LICENSE))
  - [github.com/fxamacker/cbor/v2](https://pkg.go.dev/github.com/fxamacker/cbor/v2) ([MIT](https://github.com/fxamacker/cbor/blob/v2.4.0/LICENSE))
  - [github.com/golang/groupcache/lru](https://pkg.go.dev/github.com/golang/groupcache/lru) ([Apache-2.0](https://github.com/golang/groupcache/blob/41bb18bfe9da/LICENSE))
  - [github.com/google/btree](https://pkg.go.dev/github.com/google/btree) ([Apache-2.0](https://github.com/google/btree/blob/v1.1.2/LICENSE))
  - [github.com/google/uuid](https://pkg.go.dev/github.com/google/uuid) ([BSD-3-Clause](https://github.com/google/uuid/blob/v1.3.0/LICENSE))
  - [github.com/gregjones/httpcache](https://pkg.go.dev/github.com/gregjones/httpcache) ([MIT](https://github.com/gregjones/httpcache/blob/901d90724c79/LICENSE.txt))
- - [github.com/hdevalence/ed25519consensus](https://pkg.go.dev/github.com/hdevalence/ed25519consensus) ([BSD-3-Clause](https://github.com/hdevalence/ed25519consensus/blob/c00d1f31bab3/LICENSE))
+ - [github.com/hdevalence/ed25519consensus](https://pkg.go.dev/github.com/hdevalence/ed25519consensus) ([BSD-3-Clause](https://github.com/hdevalence/ed25519consensus/blob/v0.1.0/LICENSE))
  - [github.com/josharian/native](https://pkg.go.dev/github.com/josharian/native) ([MIT](https://github.com/josharian/native/blob/5c7d0dd6ab86/license))
- - [github.com/jsimonetti/rtnetlink](https://pkg.go.dev/github.com/jsimonetti/rtnetlink) ([MIT](https://github.com/jsimonetti/rtnetlink/blob/d380b505068b/LICENSE.md))
- - [github.com/klauspost/compress](https://pkg.go.dev/github.com/klauspost/compress) ([Apache-2.0](https://github.com/klauspost/compress/blob/v1.15.11/LICENSE))
- - [github.com/klauspost/compress/internal/snapref](https://pkg.go.dev/github.com/klauspost/compress/internal/snapref) ([BSD-3-Clause](https://github.com/klauspost/compress/blob/v1.15.11/internal/snapref/LICENSE))
- - [github.com/klauspost/compress/zstd/internal/xxhash](https://pkg.go.dev/github.com/klauspost/compress/zstd/internal/xxhash) ([MIT](https://github.com/klauspost/compress/blob/v1.15.11/zstd/internal/xxhash/LICENSE.txt))
- - [github.com/mdlayher/netlink](https://pkg.go.dev/github.com/mdlayher/netlink) ([MIT](https://github.com/mdlayher/netlink/blob/v1.7.1/LICENSE.md))
- - [github.com/mdlayher/socket](https://pkg.go.dev/github.com/mdlayher/socket) ([MIT](https://github.com/mdlayher/socket/blob/v0.4.0/LICENSE.md))
+ - [github.com/jsimonetti/rtnetlink](https://pkg.go.dev/github.com/jsimonetti/rtnetlink) ([MIT](https://github.com/jsimonetti/rtnetlink/blob/v1.3.2/LICENSE.md))
+ - [github.com/klauspost/compress](https://pkg.go.dev/github.com/klauspost/compress) ([Apache-2.0](https://github.com/klauspost/compress/blob/v1.16.5/LICENSE))
+ - [github.com/klauspost/compress/internal/snapref](https://pkg.go.dev/github.com/klauspost/compress/internal/snapref) ([BSD-3-Clause](https://github.com/klauspost/compress/blob/v1.16.5/internal/snapref/LICENSE))
+ - [github.com/klauspost/compress/zstd/internal/xxhash](https://pkg.go.dev/github.com/klauspost/compress/zstd/internal/xxhash) ([MIT](https://github.com/klauspost/compress/blob/v1.16.5/zstd/internal/xxhash/LICENSE.txt))
+ - [github.com/mdlayher/netlink](https://pkg.go.dev/github.com/mdlayher/netlink) ([MIT](https://github.com/mdlayher/netlink/blob/v1.7.2/LICENSE.md))
+ - [github.com/mdlayher/socket](https://pkg.go.dev/github.com/mdlayher/socket) ([MIT](https://github.com/mdlayher/socket/blob/v0.4.1/LICENSE.md))
  - [github.com/mitchellh/go-ps](https://pkg.go.dev/github.com/mitchellh/go-ps) ([MIT](https://github.com/mitchellh/go-ps/blob/v1.0.0/LICENSE.md))
  - [github.com/nfnt/resize](https://pkg.go.dev/github.com/nfnt/resize) ([ISC](https://github.com/nfnt/resize/blob/83c6a9932646/LICENSE))
  - [github.com/peterbourgon/diskv](https://pkg.go.dev/github.com/peterbourgon/diskv) ([MIT](https://github.com/peterbourgon/diskv/blob/v2.0.1/LICENSE))
  - [github.com/skip2/go-qrcode](https://pkg.go.dev/github.com/skip2/go-qrcode) ([MIT](https://github.com/skip2/go-qrcode/blob/da1b6568686e/LICENSE))
- - [github.com/tailscale/walk](https://pkg.go.dev/github.com/tailscale/walk) ([BSD-3-Clause](https://github.com/tailscale/walk/blob/f6f2f17d9da1/LICENSE))
- - [github.com/tailscale/win](https://pkg.go.dev/github.com/tailscale/win) ([BSD-3-Clause](https://github.com/tailscale/win/blob/ad93eed16885/LICENSE))
- - [github.com/tc-hib/winres](https://pkg.go.dev/github.com/tc-hib/winres) ([0BSD](https://github.com/tc-hib/winres/blob/v0.1.6/LICENSE))
+ - [github.com/tailscale/walk](https://pkg.go.dev/github.com/tailscale/walk) ([BSD-3-Clause](https://github.com/tailscale/walk/blob/f63dace725d8/LICENSE))
+ - [github.com/tailscale/win](https://pkg.go.dev/github.com/tailscale/win) ([BSD-3-Clause](https://github.com/tailscale/win/blob/59dfb47dfef1/LICENSE))
+ - [github.com/tc-hib/winres](https://pkg.go.dev/github.com/tc-hib/winres) ([0BSD](https://github.com/tc-hib/winres/blob/v0.2.0/LICENSE))
  - [github.com/x448/float16](https://pkg.go.dev/github.com/x448/float16) ([MIT](https://github.com/x448/float16/blob/v0.8.4/LICENSE))
  - [go4.org/mem](https://pkg.go.dev/go4.org/mem) ([Apache-2.0](https://github.com/go4org/mem/blob/4f986261bf13/LICENSE))
- - [go4.org/netipx](https://pkg.go.dev/go4.org/netipx) ([BSD-3-Clause](https://github.com/go4org/netipx/blob/7e7bdc8411bf/LICENSE))
- - [golang.org/x/crypto](https://pkg.go.dev/golang.org/x/crypto) ([BSD-3-Clause](https://cs.opensource.google/go/x/crypto/+/v0.6.0:LICENSE))
- - [golang.org/x/exp](https://pkg.go.dev/golang.org/x/exp) ([BSD-3-Clause](https://cs.opensource.google/go/x/exp/+/cafedaf6:LICENSE))
- - [golang.org/x/image/bmp](https://pkg.go.dev/golang.org/x/image/bmp) ([BSD-3-Clause](https://cs.opensource.google/go/x/image/+/v0.5.0:LICENSE))
- - [golang.org/x/mod](https://pkg.go.dev/golang.org/x/mod) ([BSD-3-Clause](https://cs.opensource.google/go/x/mod/+/v0.9.0:LICENSE))
- - [golang.org/x/net](https://pkg.go.dev/golang.org/x/net) ([BSD-3-Clause](https://cs.opensource.google/go/x/net/+/v0.8.0:LICENSE))
- - [golang.org/x/sync/errgroup](https://pkg.go.dev/golang.org/x/sync/errgroup) ([BSD-3-Clause](https://cs.opensource.google/go/x/sync/+/v0.1.0:LICENSE))
- - [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) ([BSD-3-Clause](https://cs.opensource.google/go/x/sys/+/v0.6.0:LICENSE))
- - [golang.org/x/term](https://pkg.go.dev/golang.org/x/term) ([BSD-3-Clause](https://cs.opensource.google/go/x/term/+/v0.6.0:LICENSE))
- - [golang.org/x/text](https://pkg.go.dev/golang.org/x/text) ([BSD-3-Clause](https://cs.opensource.google/go/x/text/+/v0.8.0:LICENSE))
+ - [go4.org/netipx](https://pkg.go.dev/go4.org/netipx) ([BSD-3-Clause](https://github.com/go4org/netipx/blob/f1b76eb4bb35/LICENSE))
+ - [golang.org/x/crypto](https://pkg.go.dev/golang.org/x/crypto) ([BSD-3-Clause](https://cs.opensource.google/go/x/crypto/+/v0.8.0:LICENSE))
+ - [golang.org/x/exp](https://pkg.go.dev/golang.org/x/exp) ([BSD-3-Clause](https://cs.opensource.google/go/x/exp/+/47ecfdc1:LICENSE))
+ - [golang.org/x/image/bmp](https://pkg.go.dev/golang.org/x/image/bmp) ([BSD-3-Clause](https://cs.opensource.google/go/x/image/+/v0.7.0:LICENSE))
+ - [golang.org/x/mod](https://pkg.go.dev/golang.org/x/mod) ([BSD-3-Clause](https://cs.opensource.google/go/x/mod/+/v0.10.0:LICENSE))
+ - [golang.org/x/net](https://pkg.go.dev/golang.org/x/net) ([BSD-3-Clause](https://cs.opensource.google/go/x/net/+/v0.10.0:LICENSE))
+ - [golang.org/x/sync/errgroup](https://pkg.go.dev/golang.org/x/sync/errgroup) ([BSD-3-Clause](https://cs.opensource.google/go/x/sync/+/v0.2.0:LICENSE))
+ - [golang.org/x/sys](https://pkg.go.dev/golang.org/x/sys) ([BSD-3-Clause](https://cs.opensource.google/go/x/sys/+/v0.8.0:LICENSE))
+ - [golang.org/x/term](https://pkg.go.dev/golang.org/x/term) ([BSD-3-Clause](https://cs.opensource.google/go/x/term/+/v0.8.0:LICENSE))
+ - [golang.org/x/text](https://pkg.go.dev/golang.org/x/text) ([BSD-3-Clause](https://cs.opensource.google/go/x/text/+/v0.9.0:LICENSE))
  - [golang.zx2c4.com/wintun](https://pkg.go.dev/golang.zx2c4.com/wintun) ([MIT](https://git.zx2c4.com/wintun-go/tree/LICENSE?id=0fa3db229ce2))
  - [golang.zx2c4.com/wireguard/windows/tunnel/winipcfg](https://pkg.go.dev/golang.zx2c4.com/wireguard/windows/tunnel/winipcfg) ([MIT](https://git.zx2c4.com/wireguard-windows/tree/COPYING?h=v0.5.3))
  - [gopkg.in/Knetic/govaluate.v3](https://pkg.go.dev/gopkg.in/Knetic/govaluate.v3) ([MIT](https://github.com/Knetic/govaluate/blob/v3.0.0/LICENSE))

logtail/logtail.go

@@ -13,19 +13,19 @@ import (
 	"fmt"
 	"io"
 	"log"
+	mrand "math/rand"
 	"net/http"
 	"os"
 	"strconv"
-	"strings"
 	"sync"
 	"sync/atomic"
 	"time"
 
 	"tailscale.com/envknob"
-	"tailscale.com/logtail/backoff"
 	"tailscale.com/net/interfaces"
 	"tailscale.com/net/netmon"
 	"tailscale.com/net/sockstats"
+	"tailscale.com/tstime"
 	tslogger "tailscale.com/types/logger"
 	"tailscale.com/types/logid"
 	"tailscale.com/util/set"
@@ -128,9 +128,6 @@ func NewLogger(cfg Config, logf tslogger.Logf) *Logger {
 		cfg.FlushDelayFn = func() time.Duration { return 0 }
 	}
 
-	stdLogf := func(f string, a ...any) {
-		fmt.Fprintf(cfg.Stderr, strings.TrimSuffix(f, "\n")+"\n", a...)
-	}
 	var urlSuffix string
 	if !cfg.CopyPrivateID.IsZero() {
 		urlSuffix = "?copyId=" + cfg.CopyPrivateID.String()
@@ -148,7 +145,6 @@ func NewLogger(cfg Config, logf tslogger.Logf) *Logger {
 		sentinel:       make(chan int32, 16),
 		flushDelayFn:   cfg.FlushDelayFn,
 		timeNow:        cfg.TimeNow,
-		bo:             backoff.NewBackoff("logtail", stdLogf, 30*time.Second),
 		metricsDelta:   cfg.MetricsDelta,
 		sockstatsLabel: sockstats.LabelLogtailLogger,
 
@@ -186,7 +182,6 @@ type Logger struct {
 	flushPending   atomic.Bool
 	sentinel       chan int32
 	timeNow        func() time.Time
-	bo             *backoff.Backoff
 	zstdEncoder    Encoder
 	uploadCancel   func()
 	explainedRaw   bool
@@ -373,23 +368,38 @@ func (l *Logger) uploading(ctx context.Context) {
 			}
 		}
 
-		for len(body) > 0 {
-			select {
-			case <-ctx.Done():
-				return
-			default:
-			}
-			uploaded, err := l.upload(ctx, body, origlen)
+		var lastError string
+		var numFailures int
+		var firstFailure time.Time
+		for len(body) > 0 && ctx.Err() == nil {
+			retryAfter, err := l.upload(ctx, body, origlen)
 			if err != nil {
+				numFailures++
+				firstFailure = time.Now()
+
 				if !l.internetUp() {
 					fmt.Fprintf(l.stderr, "logtail: internet down; waiting\n")
 					l.awaitInternetUp(ctx)
 					continue
 				}
-				fmt.Fprintf(l.stderr, "logtail: upload: %v\n", err)
-			}
-			l.bo.BackOff(ctx, err)
-			if uploaded {
+
+				// Only print the same message once.
+				if currError := err.Error(); lastError != currError {
+					fmt.Fprintf(l.stderr, "logtail: upload: %v\n", err)
+					lastError = currError
+				}
+
+				// Sleep for the specified retryAfter period,
+				// otherwise default to some random value.
+				if retryAfter <= 0 {
+					retryAfter = time.Duration(30+mrand.Intn(30)) * time.Second
+				}
+				tstime.Sleep(ctx, retryAfter)
+			} else {
+				// Only print a success message after recovery.
+				if numFailures > 0 {
+					fmt.Fprintf(l.stderr, "logtail: upload succeeded after %d failures and %s\n", numFailures, time.Since(firstFailure).Round(time.Second))
+				}
 				break
 			}
 		}
@@ -433,7 +443,7 @@ func (l *Logger) awaitInternetUp(ctx context.Context) {
 // upload uploads body to the log server.
 // origlen indicates the pre-compression body length.
 // origlen of -1 indicates that the body is not compressed.
-func (l *Logger) upload(ctx context.Context, body []byte, origlen int) (uploaded bool, err error) {
+func (l *Logger) upload(ctx context.Context, body []byte, origlen int) (retryAfter time.Duration, err error) {
 	const maxUploadTime = 45 * time.Second
 	ctx = sockstats.WithSockStats(ctx, l.sockstatsLabel, l.Logf)
 	ctx, cancel := context.WithTimeout(ctx, maxUploadTime)
@@ -460,17 +470,16 @@ func (l *Logger) upload(ctx context.Context, body []byte, origlen int) (uploaded
 	l.httpDoCalls.Add(1)
 	resp, err := l.httpc.Do(req)
 	if err != nil {
-		return false, fmt.Errorf("log upload of %d bytes %s failed: %v", len(body), compressedNote, err)
+		return 0, fmt.Errorf("log upload of %d bytes %s failed: %v", len(body), compressedNote, err)
 	}
 	defer resp.Body.Close()
 
-	if resp.StatusCode != 200 {
-		uploaded = resp.StatusCode == 400 // the server saved the logs anyway
-		b, _ := io.ReadAll(io.LimitReader(resp.Body, 1<<20))
-		return uploaded, fmt.Errorf("log upload of %d bytes %s failed %d: %q", len(body), compressedNote, resp.StatusCode, b)
+	if resp.StatusCode != http.StatusOK {
+		n, _ := strconv.Atoi(resp.Header.Get("Retry-After"))
+		b, _ := io.ReadAll(io.LimitReader(resp.Body, 1<<10))
+		return time.Duration(n) * time.Second, fmt.Errorf("log upload of %d bytes %s failed %d: %s", len(body), compressedNote, resp.StatusCode, bytes.TrimSpace(b))
 	}
-
-	return true, nil
+	return 0, nil
 }
 
 // Flush uploads all logs to the server. It blocks until complete or there is an

net/dnscache/dnscache.go

@@ -143,10 +143,6 @@ func (r *Resolver) cloudHostResolver() (v *net.Resolver, ok bool) {
 	switch runtime.GOOS {
 	case "android", "ios", "darwin":
 		return nil, false
-	case "windows":
-		// TODO(bradfitz): remove this restriction once we're using Go 1.19
-		// which supports net.Resolver.PreferGo on Windows.
-		return nil, false
 	}
 	ip := cloudenv.Get().ResolverIP()
 	if ip == "" {

net/netcheck/netcheck.go

@@ -1321,10 +1321,7 @@ func (c *Client) measureAllICMPLatency(ctx context.Context, rs *reportState, nee
 	ctx, done := context.WithTimeout(ctx, icmpProbeTimeout)
 	defer done()
 
-	p, err := ping.New(ctx, c.logf, c.NetMon)
-	if err != nil {
-		return err
-	}
+	p := ping.New(ctx, c.logf, netns.Listener(c.logf, c.NetMon))
 	defer p.Close()
 
 	c.logf("UDP is blocked, trying ICMP")

net/netcheck/netcheck_test.go

@@ -11,7 +11,6 @@ import (
 	"net/http"
 	"net/netip"
 	"reflect"
-	"runtime"
 	"sort"
 	"strconv"
 	"strings"
@@ -156,9 +155,6 @@ func TestHairpinWait(t *testing.T) {
 }
 
 func TestBasic(t *testing.T) {
-	if runtime.GOOS == "windows" {
-		t.Skip("TODO(#7876): test regressed on windows while CI was broken")
-	}
 	stunAddr, cleanup := stuntest.Serve(t)
 	defer cleanup()
 

net/netns/netns_darwin.go

@@ -111,7 +111,7 @@ func getInterfaceIndex(logf logger.Logf, netMon *netmon.Monitor, address string)
 	// Verify that we didn't just choose the Tailscale interface;
 	// if so, we fall back to binding from the default.
 	_, tsif, err2 := interfaces.Tailscale()
-	if err2 == nil && tsif.Index == idx {
+	if err2 == nil && tsif != nil && tsif.Index == idx {
 		logf("[unexpected] netns: interfaceIndexFor returned Tailscale interface")
 		return defaultIdx()
 	}

net/ping/ping.go

@@ -11,16 +11,25 @@ import (
 	"crypto/rand"
 	"encoding/binary"
 	"fmt"
+	"io"
 	"log"
 	"net"
+	"net/netip"
 	"sync"
+	"sync/atomic"
 	"time"
 
 	"golang.org/x/net/icmp"
 	"golang.org/x/net/ipv4"
-	"tailscale.com/net/netmon"
-	"tailscale.com/net/netns"
+	"golang.org/x/net/ipv6"
 	"tailscale.com/types/logger"
+	"tailscale.com/util/mak"
+	"tailscale.com/util/multierr"
+)
+
+const (
+	v4Type = "ip4:icmp"
+	v6Type = "ip6:icmp"
 )
 
 type response struct {
@@ -33,12 +42,21 @@ type outstanding struct {
 	data []byte
 }
 
+// PacketListener defines the interface required to listen to packages
+// on an address.
+type ListenPacketer interface {
+	ListenPacket(ctx context.Context, typ string, addr string) (net.PacketConn, error)
+}
+
 // Pinger represents a set of ICMP echo requests to be sent at a single time.
 //
 // A new instance should be created for each concurrent set of ping requests;
 // this type should not be reused.
 type Pinger struct {
-	c       net.PacketConn
+	lp ListenPacketer
+
+	// closed guards against send incrementing the waitgroup concurrently with close.
+	closed  atomic.Bool
 	Logf    logger.Logf
 	Verbose bool
 	timeNow func() time.Time
@@ -46,16 +64,37 @@ type Pinger struct {
 	wg      sync.WaitGroup
 
 	// Following fields protected by mu
-	mu    sync.Mutex
+	mu sync.Mutex
+	// conns is a map of "type" to net.PacketConn, type is either
+	// "ip4:icmp" or "ip6:icmp"
+	conns map[string]net.PacketConn
 	seq   uint16 // uint16 per RFC 792
 	pings map[uint16]outstanding
 }
 
 // New creates a new Pinger. The Context provided will be used to create
 // network listeners, and to set an absolute deadline (if any) on the net.Conn
-// The netMon parameter is optional; if non-nil it's used to do faster interface lookups.
-func New(ctx context.Context, logf logger.Logf, netMon *netmon.Monitor) (*Pinger, error) {
-	p, err := newUnstarted(ctx, logf, netMon)
+func New(ctx context.Context, logf logger.Logf, lp ListenPacketer) *Pinger {
+	var id [2]byte
+	if _, err := io.ReadFull(rand.Reader, id[:]); err != nil {
+		panic("net/ping: New:" + err.Error())
+	}
+
+	return &Pinger{
+		lp:      lp,
+		Logf:    logf,
+		timeNow: time.Now,
+		id:      binary.LittleEndian.Uint16(id[:]),
+		pings:   make(map[uint16]outstanding),
+	}
+}
+
+func (p *Pinger) mkconn(ctx context.Context, typ, addr string) (net.PacketConn, error) {
+	if p.closed.Load() {
+		return nil, net.ErrClosed
+	}
+
+	c, err := p.lp.ListenPacket(ctx, typ, addr)
 	if err != nil {
 		return nil, err
 	}
@@ -64,35 +103,36 @@ func New(ctx context.Context, logf logger.Logf, netMon *netmon.Monitor) (*Pinger
 	// applies to all future I/O, so we only need to do it once.
 	deadline, ok := ctx.Deadline()
 	if ok {
-		if err := p.c.SetReadDeadline(deadline); err != nil {
+		if err := c.SetReadDeadline(deadline); err != nil {
 			return nil, err
 		}
 	}
 
 	p.wg.Add(1)
-	go p.run(ctx)
-	return p, nil
+	go p.run(ctx, c, typ)
+
+	return c, err
 }
 
-func newUnstarted(ctx context.Context, logf logger.Logf, netMon *netmon.Monitor) (*Pinger, error) {
-	var id [2]byte
-	_, err := rand.Read(id[:])
+// getConn creates or returns a conn matching typ which is ip4:icmp
+// or ip6:icmp.
+func (p *Pinger) getConn(ctx context.Context, typ string) (net.PacketConn, error) {
+	p.mu.Lock()
+	defer p.mu.Unlock()
+	if c, ok := p.conns[typ]; ok {
+		return c, nil
+	}
+
+	var addr = "0.0.0.0"
+	if typ == v6Type {
+		addr = "::"
+	}
+	c, err := p.mkconn(ctx, typ, addr)
 	if err != nil {
 		return nil, err
 	}
-
-	conn, err := netns.Listener(logf, netMon).ListenPacket(ctx, "ip4:icmp", "0.0.0.0")
-	if err != nil {
-		return nil, err
-	}
-
-	return &Pinger{
-		c:       conn,
-		Logf:    logf,
-		timeNow: time.Now,
-		id:      binary.LittleEndian.Uint16(id[:]),
-		pings:   make(map[uint16]outstanding),
-	}, nil
+	mak.Set(&p.conns, typ, c)
+	return c, nil
 }
 
 func (p *Pinger) logf(format string, a ...any) {
@@ -110,13 +150,34 @@ func (p *Pinger) vlogf(format string, a ...any) {
 }
 
 func (p *Pinger) Close() error {
-	err := p.c.Close()
+	p.closed.Store(true)
+
+	p.mu.Lock()
+	conns := p.conns
+	p.conns = nil
+	p.mu.Unlock()
+
+	var errors []error
+	for _, c := range conns {
+		if err := c.Close(); err != nil {
+			errors = append(errors, err)
+		}
+	}
+
 	p.wg.Wait()
-	return err
+	p.cleanupOutstanding()
+
+	return multierr.New(errors...)
 }
 
-func (p *Pinger) run(ctx context.Context) {
+func (p *Pinger) run(ctx context.Context, conn net.PacketConn, typ string) {
 	defer p.wg.Done()
+	defer func() {
+		conn.Close()
+		p.mu.Lock()
+		delete(p.conns, typ)
+		p.mu.Unlock()
+	}()
 	buf := make([]byte, 1500)
 
 loop:
@@ -127,7 +188,7 @@ loop:
 		default:
 		}
 
-		n, addr, err := p.c.ReadFrom(buf)
+		n, _, err := conn.ReadFrom(buf)
 		if err != nil {
 			// Ignore temporary errors; everything else is fatal
 			if netErr, ok := err.(net.Error); !ok || !netErr.Temporary() {
@@ -136,10 +197,8 @@ loop:
 			continue
 		}
 
-		p.handleResponse(buf[:n], addr, p.timeNow())
+		p.handleResponse(buf[:n], p.timeNow(), typ)
 	}
-
-	p.cleanupOutstanding()
 }
 
 func (p *Pinger) cleanupOutstanding() {
@@ -151,16 +210,28 @@ func (p *Pinger) cleanupOutstanding() {
 	}
 }
 
-func (p *Pinger) handleResponse(buf []byte, addr net.Addr, now time.Time) {
-	const ProtocolICMP = 1
-	m, err := icmp.ParseMessage(ProtocolICMP, buf)
+func (p *Pinger) handleResponse(buf []byte, now time.Time, typ string) {
+	// We need to handle responding to both IPv4
+	// and IPv6.
+	var icmpType icmp.Type
+	switch typ {
+	case v4Type:
+		icmpType = ipv4.ICMPTypeEchoReply
+	case v6Type:
+		icmpType = ipv6.ICMPTypeEchoReply
+	default:
+		p.vlogf("handleResponse: unknown icmp.Type")
+		return
+	}
+
+	m, err := icmp.ParseMessage(icmpType.Protocol(), buf)
 	if err != nil {
 		p.vlogf("handleResponse: invalid packet: %v", err)
 		return
 	}
 
-	if m.Type != ipv4.ICMPTypeEchoReply {
-		p.vlogf("handleResponse: wanted m.Type=%d; got %d", ipv4.ICMPTypeEchoReply, m.Type)
+	if m.Type != icmpType {
+		p.vlogf("handleResponse: wanted m.Type=%d; got %d", icmpType, m.Type)
 		return
 	}
 
@@ -212,9 +283,27 @@ func (p *Pinger) Send(ctx context.Context, dest net.Addr, data []byte) (time.Dur
 	seq := p.seq
 	p.mu.Unlock()
 
+	// Check whether the address is IPv4 or IPv6 to
+	// determine the icmp.Type and conn to use.
+	var conn net.PacketConn
+	var icmpType icmp.Type = ipv4.ICMPTypeEcho
+	ap, err := netip.ParseAddr(dest.String())
+	if err != nil {
+		return 0, err
+	}
+	if ap.Is6() {
+		icmpType = ipv6.ICMPTypeEchoRequest
+		conn, err = p.getConn(ctx, v6Type)
+	} else {
+		conn, err = p.getConn(ctx, v4Type)
+	}
+	if err != nil {
+		return 0, err
+	}
+
 	m := icmp.Message{
-		Type: ipv4.ICMPTypeEcho,
-		Code: 0,
+		Type: icmpType,
+		Code: icmpType.Protocol(),
 		Body: &icmp.Echo{
 			ID:   int(p.id),
 			Seq:  int(seq),
@@ -234,7 +323,7 @@ func (p *Pinger) Send(ctx context.Context, dest net.Addr, data []byte) (time.Dur
 	p.mu.Unlock()
 
 	start := p.timeNow()
-	n, err := p.c.WriteTo(b, dest)
+	n, err := conn.WriteTo(b, dest)
 	if err != nil {
 		return 0, err
 	} else if n != len(b) {

net/ping/ping_test.go

@@ -6,18 +6,20 @@ package ping
 import (
 	"context"
 	"errors"
+	"fmt"
 	"net"
 	"testing"
 	"time"
 
 	"golang.org/x/net/icmp"
 	"golang.org/x/net/ipv4"
+	"golang.org/x/net/ipv6"
 	"tailscale.com/tstest"
+	"tailscale.com/util/mak"
 )
 
 var (
-	localhost    = &net.IPAddr{IP: net.IPv4(127, 0, 0, 1)}
-	localhostUDP = &net.UDPAddr{IP: net.IPv4(127, 0, 0, 1), Port: 12345}
+	localhost = &net.IPAddr{IP: net.IPv4(127, 0, 0, 1)}
 )
 
 func TestPinger(t *testing.T) {
@@ -35,7 +37,7 @@ func TestPinger(t *testing.T) {
 	// Start a ping in the background
 	r := make(chan time.Duration, 1)
 	go func() {
-		dur, err := p.Send(ctx, localhostUDP, bodyData)
+		dur, err := p.Send(ctx, localhost, bodyData)
 		if err != nil {
 			t.Errorf("p.Send: %v", err)
 			r <- 0
@@ -49,7 +51,7 @@ func TestPinger(t *testing.T) {
 	// Fake a response from ourself
 	fakeResponse := mustMarshal(t, &icmp.Message{
 		Type: ipv4.ICMPTypeEchoReply,
-		Code: 0,
+		Code: ipv4.ICMPTypeEchoReply.Protocol(),
 		Body: &icmp.Echo{
 			ID:   1234,
 			Seq:  1,
@@ -58,7 +60,65 @@ func TestPinger(t *testing.T) {
 	})
 
 	const fakeDuration = 100 * time.Millisecond
-	p.handleResponse(fakeResponse, localhost, clock.Now().Add(fakeDuration))
+	p.handleResponse(fakeResponse, clock.Now().Add(fakeDuration), v4Type)
+
+	select {
+	case dur := <-r:
+		want := fakeDuration
+		if dur != want {
+			t.Errorf("wanted ping response time = %d; got %d", want, dur)
+		}
+	case <-ctx.Done():
+		t.Fatal("did not get response by timeout")
+	}
+}
+
+func TestV6Pinger(t *testing.T) {
+	if c, err := net.ListenPacket("udp6", "::1"); err != nil {
+		// skip test if we can't use IPv6.
+		t.Skipf("IPv6 not supported: %s", err)
+	} else {
+		c.Close()
+	}
+
+	clock := &tstest.Clock{}
+
+	ctx := context.Background()
+	ctx, cancel := context.WithTimeout(ctx, 5*time.Second)
+	defer cancel()
+
+	p, closeP := mockPinger(t, clock)
+	defer closeP()
+
+	bodyData := []byte("data goes here")
+
+	// Start a ping in the background
+	r := make(chan time.Duration, 1)
+	go func() {
+		dur, err := p.Send(ctx, &net.IPAddr{IP: net.ParseIP("::")}, bodyData)
+		if err != nil {
+			t.Errorf("p.Send: %v", err)
+			r <- 0
+		} else {
+			r <- dur
+		}
+	}()
+
+	p.waitOutstanding(t, ctx, 1)
+
+	// Fake a response from ourself
+	fakeResponse := mustMarshal(t, &icmp.Message{
+		Type: ipv6.ICMPTypeEchoReply,
+		Code: ipv6.ICMPTypeEchoReply.Protocol(),
+		Body: &icmp.Echo{
+			ID:   1234,
+			Seq:  1,
+			Data: bodyData,
+		},
+	})
+
+	const fakeDuration = 100 * time.Millisecond
+	p.handleResponse(fakeResponse, clock.Now().Add(fakeDuration), v6Type)
 
 	select {
 	case dur := <-r:
@@ -83,7 +143,7 @@ func TestPingerTimeout(t *testing.T) {
 	// Send a ping in the background
 	r := make(chan error, 1)
 	go func() {
-		_, err := p.Send(ctx, localhostUDP, []byte("data goes here"))
+		_, err := p.Send(ctx, localhost, []byte("data goes here"))
 		r <- err
 	}()
 
@@ -115,7 +175,7 @@ func TestPingerMismatch(t *testing.T) {
 	// Start a ping in the background
 	r := make(chan time.Duration, 1)
 	go func() {
-		dur, err := p.Send(ctx, localhostUDP, bodyData)
+		dur, err := p.Send(ctx, localhost, bodyData)
 		if err != nil && !errors.Is(err, context.DeadlineExceeded) {
 			t.Errorf("p.Send: %v", err)
 			r <- 0
@@ -185,11 +245,11 @@ func TestPingerMismatch(t *testing.T) {
 
 	for _, tt := range badPackets {
 		fakeResponse := mustMarshal(t, tt.pkt)
-		p.handleResponse(fakeResponse, localhost, tm)
+		p.handleResponse(fakeResponse, tm, v4Type)
 	}
 
 	// Also "receive" a packet that does not unmarshal as an ICMP packet
-	p.handleResponse([]byte("foo"), localhost, tm)
+	p.handleResponse([]byte("foo"), tm, v4Type)
 
 	select {
 	case <-r:
@@ -199,23 +259,59 @@ func TestPingerMismatch(t *testing.T) {
 	}
 }
 
+// udpingPacketConn will convert potentially ICMP destination addrs to UDP
+// destination addrs in WriteTo so that a test that is intending to send ICMP
+// traffic will instead send UDP traffic, without the higher level Pinger being
+// aware of this difference.
+type udpingPacketConn struct {
+	net.PacketConn
+	// destPort will be configured by the test to be the peer expected to respond to a ping.
+	destPort uint16
+}
+
+func (u *udpingPacketConn) WriteTo(body []byte, dest net.Addr) (int, error) {
+	switch d := dest.(type) {
+	case *net.IPAddr:
+		udpAddr := &net.UDPAddr{
+			IP:   d.IP,
+			Port: int(u.destPort),
+			Zone: d.Zone,
+		}
+		return u.PacketConn.WriteTo(body, udpAddr)
+	}
+	return 0, fmt.Errorf("unimplemented udpingPacketConn for %T", dest)
+}
+
 func mockPinger(t *testing.T, clock *tstest.Clock) (*Pinger, func()) {
+	p := New(context.Background(), t.Logf, nil)
+	p.timeNow = clock.Now
+	p.Verbose = true
+	p.id = 1234
+
 	// In tests, we use UDP so that we can test without being root; this
 	// doesn't matter because we mock out the ICMP reply below to be a real
 	// ICMP echo reply packet.
-	conn, err := net.ListenPacket("udp4", "127.0.0.1:0")
+	conn4, err := net.ListenPacket("udp4", "127.0.0.1:0")
 	if err != nil {
 		t.Fatalf("net.ListenPacket: %v", err)
 	}
 
-	p := &Pinger{
-		c:       conn,
-		Logf:    t.Logf,
-		Verbose: true,
-		timeNow: clock.Now,
-		id:      1234,
-		pings:   make(map[uint16]outstanding),
+	conn6, err := net.ListenPacket("udp6", "[::]:0")
+	if err != nil {
+		t.Fatalf("net.ListenPacket: %v", err)
 	}
+
+	conn4 = &udpingPacketConn{
+		destPort:   12345,
+		PacketConn: conn4,
+	}
+	conn6 = &udpingPacketConn{
+		PacketConn: conn6,
+		destPort:   12345,
+	}
+
+	mak.Set(&p.conns, v4Type, conn4)
+	mak.Set(&p.conns, v6Type, conn6)
 	done := func() {
 		if err := p.Close(); err != nil {
 			t.Errorf("error on close: %v", err)

net/sockstats/sockstats_tsgo.go

@@ -325,6 +325,10 @@ type radioMonitor struct {
 // Usage is measured once per second, so this is the number of seconds of history to track.
 const radioSampleSize = 3600 // 1 hour
 
+// initStallPeriod is the minimum amount of time in seconds to collect data before reporting.
+// Otherwise, all clients will report 100% radio usage on startup.
+var initStallPeriod int64 = 120 // 2 minutes
+
 var radio = &radioMonitor{
 	now:       time.Now,
 	startTime: time.Now().Unix(),
@@ -375,7 +379,7 @@ func (rm *radioMonitor) radioHighPercent() int64 {
 		}
 	})
 
-	if periodLength == 0 {
+	if periodLength < initStallPeriod {
 		return 0
 	}
 
@@ -386,7 +390,7 @@ func (rm *radioMonitor) radioHighPercent() int64 {
 }
 
 // forEachSample calls f for each sample in the past hour (or less if less time
-// has passed -- the evaluated period is returned)
+// has passed -- the evaluated period is returned, measured in seconds)
 func (rm *radioMonitor) forEachSample(f func(c int, isActive bool)) (periodLength int64) {
 	now := rm.now().Unix()
 	periodLength = radioSampleSize

net/sockstats/sockstats_tsgo_test.go

@@ -33,6 +33,14 @@ func TestRadioMonitor(t *testing.T) {
 			func(_ *testTime, _ *radioMonitor) {},
 			0,
 		},
+		{
+			"active less than init stall period",
+			func(tt *testTime, rm *radioMonitor) {
+				rm.active()
+				tt.Add(1 * time.Second)
+			},
+			0, // radio on, but not long enough to report data
+		},
 		{
 			"active, 10 sec idle",
 			func(tt *testTime, rm *radioMonitor) {
@@ -42,13 +50,13 @@ func TestRadioMonitor(t *testing.T) {
 			50, // radio on 5 seconds of 10 seconds
 		},
 		{
-			"active, spanning two seconds",
+			"active, spanning three seconds",
 			func(tt *testTime, rm *radioMonitor) {
 				rm.active()
-				tt.Add(1100 * time.Millisecond)
+				tt.Add(2100 * time.Millisecond)
 				rm.active()
 			},
-			100, // radio on for 2 seconds
+			100, // radio on for 3 seconds
 		},
 		{
 			"400 iterations: 2 sec active, 1 min idle",
@@ -66,13 +74,17 @@ func TestRadioMonitor(t *testing.T) {
 		{
 			"activity at end of time window",
 			func(tt *testTime, rm *radioMonitor) {
-				tt.Add(1 * time.Second)
+				tt.Add(3 * time.Second)
 				rm.active()
 			},
-			50,
+			25,
 		},
 	}
 
+	oldStallPeriod := initStallPeriod
+	initStallPeriod = 3
+	t.Cleanup(func() { initStallPeriod = oldStallPeriod })
+
 	for _, tt := range tests {
 		t.Run(tt.name, func(t *testing.T) {
 			tm := &testTime{time.Date(2021, 1, 1, 0, 0, 0, 0, time.UTC)}

net/tstun/fake.go

@@ -47,8 +47,11 @@ func (t *fakeTUN) Write(b [][]byte, n int) (int, error) {
 	return 1, nil
 }
 
+// FakeTUNName is the name of the fake TUN device.
+const FakeTUNName = "FakeTUN"
+
 func (t *fakeTUN) Flush() error             { return nil }
 func (t *fakeTUN) MTU() (int, error)        { return 1500, nil }
-func (t *fakeTUN) Name() (string, error)    { return "FakeTUN", nil }
+func (t *fakeTUN) Name() (string, error)    { return FakeTUNName, nil }
 func (t *fakeTUN) Events() <-chan tun.Event { return t.evchan }
 func (t *fakeTUN) BatchSize() int           { return 1 }

net/tstun/wrap.go

@@ -20,6 +20,7 @@ import (
 	"github.com/tailscale/wireguard-go/device"
 	"github.com/tailscale/wireguard-go/tun"
 	"go4.org/mem"
+	"golang.org/x/exp/slices"
 	"gvisor.dev/gvisor/pkg/tcpip/stack"
 	"tailscale.com/disco"
 	"tailscale.com/net/connstats"
@@ -590,16 +591,33 @@ func natConfigFromWGConfig(wcfg *wgcfg.Config) *natV4Config {
 		dstMasqAddrs map[key.NodePublic]netip.Addr
 		listenAddrs  map[netip.Addr]struct{}
 	)
+
+	// When using an exit node that requires masquerading, we need to
+	// fill out the routing table with all peers not just the ones that
+	// require masquerading.
+	exitNodeRequiresMasq := false // true if using an exit node and it requires masquerading
+	for _, p := range wcfg.Peers {
+		isExitNode := slices.Contains(p.AllowedIPs, tsaddr.AllIPv4()) || slices.Contains(p.AllowedIPs, tsaddr.AllIPv6())
+		if isExitNode && p.V4MasqAddr != nil && p.V4MasqAddr.IsValid() {
+			exitNodeRequiresMasq = true
+			break
+		}
+	}
 	for i := range wcfg.Peers {
 		p := &wcfg.Peers[i]
-		if p.V4MasqAddr == nil || !p.V4MasqAddr.IsValid() {
+		var addrToUse netip.Addr
+		if p.V4MasqAddr != nil && p.V4MasqAddr.IsValid() {
+			addrToUse = *p.V4MasqAddr
+			mak.Set(&listenAddrs, addrToUse, struct{}{})
+		} else if exitNodeRequiresMasq {
+			addrToUse = nativeAddr
+		} else {
 			continue
 		}
 		rt.InsertOrReplace(p.PublicKey, p.AllowedIPs...)
-		mak.Set(&dstMasqAddrs, p.PublicKey, *p.V4MasqAddr)
-		mak.Set(&listenAddrs, *p.V4MasqAddr, struct{}{})
+		mak.Set(&dstMasqAddrs, p.PublicKey, addrToUse)
 	}
-	if len(listenAddrs) == 0 || len(dstMasqAddrs) == 0 {
+	if len(listenAddrs) == 0 && len(dstMasqAddrs) == 0 {
 		return nil
 	}
 	return &natV4Config{

net/tstun/wrap_test.go

@@ -602,13 +602,13 @@ func TestFilterDiscoLoop(t *testing.T) {
 }
 
 func TestNATCfg(t *testing.T) {
-	node := func(ip, eip netip.Addr, otherAllowedIPs ...netip.Prefix) wgcfg.Peer {
+	node := func(ip, masqIP netip.Addr, otherAllowedIPs ...netip.Prefix) wgcfg.Peer {
 		p := wgcfg.Peer{
 			PublicKey: key.NewNode().Public(),
 			AllowedIPs: []netip.Prefix{
 				netip.PrefixFrom(ip, ip.BitLen()),
 			},
-			V4MasqAddr: ptr.To(eip),
+			V4MasqAddr: ptr.To(masqIP),
 		}
 		p.AllowedIPs = append(p.AllowedIPs, otherAllowedIPs...)
 		return p
@@ -619,13 +619,16 @@ func TestNATCfg(t *testing.T) {
 		selfNativeIP = netip.MustParseAddr("100.64.0.1")
 		selfEIP1     = netip.MustParseAddr("100.64.1.1")
 		selfEIP2     = netip.MustParseAddr("100.64.1.2")
+		selfAddrs    = []netip.Prefix{netip.PrefixFrom(selfNativeIP, selfNativeIP.BitLen())}
 
 		peer1IP = netip.MustParseAddr("100.64.0.2")
 		peer2IP = netip.MustParseAddr("100.64.0.3")
 
-		subnet = netip.MustParseAddr("192.168.0.1")
+		subnet   = netip.MustParsePrefix("192.168.0.0/24")
+		subnetIP = netip.MustParseAddr("192.168.0.1")
 
-		selfAddrs = []netip.Prefix{netip.PrefixFrom(selfNativeIP, selfNativeIP.BitLen())}
+		exitRoute = netip.MustParsePrefix("0.0.0.0/0")
+		publicIP  = netip.MustParseAddr("8.8.8.8")
 	)
 
 	tests := []struct {
@@ -638,9 +641,9 @@ func TestNATCfg(t *testing.T) {
 			name: "no-cfg",
 			wcfg: nil,
 			snatMap: map[netip.Addr]netip.Addr{
-				peer1IP: selfNativeIP,
-				peer2IP: selfNativeIP,
-				subnet:  selfNativeIP,
+				peer1IP:  selfNativeIP,
+				peer2IP:  selfNativeIP,
+				subnetIP: selfNativeIP,
 			},
 			dnatMap: map[netip.Addr]netip.Addr{
 				selfNativeIP: selfNativeIP,
@@ -658,15 +661,15 @@ func TestNATCfg(t *testing.T) {
 				},
 			},
 			snatMap: map[netip.Addr]netip.Addr{
-				peer1IP: selfNativeIP,
-				peer2IP: selfEIP1,
-				subnet:  selfNativeIP,
+				peer1IP:  selfNativeIP,
+				peer2IP:  selfEIP1,
+				subnetIP: selfNativeIP,
 			},
 			dnatMap: map[netip.Addr]netip.Addr{
 				selfNativeIP: selfNativeIP,
 				selfEIP1:     selfNativeIP,
 				selfEIP2:     selfEIP2,
-				subnet:       subnet,
+				subnetIP:     subnetIP,
 			},
 		},
 		{
@@ -679,15 +682,15 @@ func TestNATCfg(t *testing.T) {
 				},
 			},
 			snatMap: map[netip.Addr]netip.Addr{
-				peer1IP: selfEIP1,
-				peer2IP: selfEIP2,
-				subnet:  selfNativeIP,
+				peer1IP:  selfEIP1,
+				peer2IP:  selfEIP2,
+				subnetIP: selfNativeIP,
 			},
 			dnatMap: map[netip.Addr]netip.Addr{
 				selfNativeIP: selfNativeIP,
 				selfEIP1:     selfNativeIP,
 				selfEIP2:     selfNativeIP,
-				subnet:       subnet,
+				subnetIP:     subnetIP,
 			},
 		},
 		{
@@ -696,19 +699,19 @@ func TestNATCfg(t *testing.T) {
 				Addresses: selfAddrs,
 				Peers: []wgcfg.Peer{
 					node(peer1IP, selfEIP1),
-					node(peer2IP, selfEIP2, netip.MustParsePrefix("192.168.0.0/24")),
+					node(peer2IP, selfEIP2, subnet),
 				},
 			},
 			snatMap: map[netip.Addr]netip.Addr{
-				peer1IP: selfEIP1,
-				peer2IP: selfEIP2,
-				subnet:  selfEIP2,
+				peer1IP:  selfEIP1,
+				peer2IP:  selfEIP2,
+				subnetIP: selfEIP2,
 			},
 			dnatMap: map[netip.Addr]netip.Addr{
 				selfNativeIP: selfNativeIP,
 				selfEIP1:     selfNativeIP,
 				selfEIP2:     selfNativeIP,
-				subnet:       subnet,
+				subnetIP:     subnetIP,
 			},
 		},
 		{
@@ -717,19 +720,19 @@ func TestNATCfg(t *testing.T) {
 				Addresses: selfAddrs,
 				Peers: []wgcfg.Peer{
 					node(peer1IP, selfEIP1),
-					node(peer2IP, selfEIP2, netip.MustParsePrefix("0.0.0.0/0")),
+					node(peer2IP, selfEIP2, exitRoute),
 				},
 			},
 			snatMap: map[netip.Addr]netip.Addr{
-				peer1IP:                        selfEIP1,
-				peer2IP:                        selfEIP2,
-				netip.MustParseAddr("8.8.8.8"): selfEIP2,
+				peer1IP:  selfEIP1,
+				peer2IP:  selfEIP2,
+				publicIP: selfEIP2,
 			},
 			dnatMap: map[netip.Addr]netip.Addr{
 				selfNativeIP: selfNativeIP,
 				selfEIP1:     selfNativeIP,
 				selfEIP2:     selfNativeIP,
-				subnet:       subnet,
+				subnetIP:     subnetIP,
 			},
 		},
 		{
@@ -742,15 +745,35 @@ func TestNATCfg(t *testing.T) {
 				},
 			},
 			snatMap: map[netip.Addr]netip.Addr{
-				peer1IP: selfNativeIP,
-				peer2IP: selfNativeIP,
-				subnet:  selfNativeIP,
+				peer1IP:  selfNativeIP,
+				peer2IP:  selfNativeIP,
+				subnetIP: selfNativeIP,
 			},
 			dnatMap: map[netip.Addr]netip.Addr{
 				selfNativeIP: selfNativeIP,
 				selfEIP1:     selfEIP1,
 				selfEIP2:     selfEIP2,
-				subnet:       subnet,
+				subnetIP:     subnetIP,
+			},
+		},
+		{
+			name: "exit-node-require-nat-peer-doesnt",
+			wcfg: &wgcfg.Config{
+				Addresses: selfAddrs,
+				Peers: []wgcfg.Peer{
+					node(peer1IP, noIP),
+					node(peer2IP, selfEIP2, exitRoute),
+				},
+			},
+			snatMap: map[netip.Addr]netip.Addr{
+				peer1IP:  selfNativeIP,
+				peer2IP:  selfEIP2,
+				publicIP: selfEIP2,
+			},
+			dnatMap: map[netip.Addr]netip.Addr{
+				selfNativeIP: selfNativeIP,
+				selfEIP2:     selfNativeIP,
+				subnetIP:     subnetIP,
 			},
 		},
 	}

portlist/netstat.go

@@ -67,7 +67,7 @@ type nothing struct{}
 // Unfortunately, options to filter by proto or state are non-portable,
 // so we'll filter for ourselves.
 // Nowadays, though, we only use it for macOS as of 2022-11-04.
-func appendParsePortsNetstat(base []Port, br *bufio.Reader) ([]Port, error) {
+func appendParsePortsNetstat(base []Port, br *bufio.Reader, includeLocalhost bool) ([]Port, error) {
 	ret := base
 	var fieldBuf [10]mem.RO
 	for {
@@ -99,7 +99,7 @@ func appendParsePortsNetstat(base []Port, br *bufio.Reader) ([]Port, error) {
 				// not interested in non-listener sockets
 				continue
 			}
-			if isLoopbackAddr(laddr) {
+			if !includeLocalhost && isLoopbackAddr(laddr) {
 				// not interested in loopback-bound listeners
 				continue
 			}
@@ -110,7 +110,7 @@ func appendParsePortsNetstat(base []Port, br *bufio.Reader) ([]Port, error) {
 			proto = "udp"
 			laddr = cols[len(cols)-2]
 			raddr = cols[len(cols)-1]
-			if isLoopbackAddr(laddr) {
+			if !includeLocalhost && isLoopbackAddr(laddr) {
 				// not interested in loopback-bound listeners
 				continue
 			}

portlist/netstat_test.go

@@ -8,6 +8,7 @@ package portlist
 import (
 	"bufio"
 	"encoding/json"
+	"fmt"
 	"strings"
 	"testing"
 
@@ -52,30 +53,40 @@ udp46      0      0  *.146                 *.*
 `
 
 func TestParsePortsNetstat(t *testing.T) {
-	want := List{
-		Port{"tcp", 23, ""},
-		Port{"tcp", 24, ""},
-		Port{"udp", 104, ""},
-		Port{"udp", 106, ""},
-		Port{"udp", 146, ""},
-		Port{"tcp", 8185, ""}, // but not 8186, 8187, 8188 on localhost
-	}
-
-	pl, err := appendParsePortsNetstat(nil, bufio.NewReader(strings.NewReader(netstatOutput)))
-	if err != nil {
-		t.Fatal(err)
-	}
-	pl = sortAndDedup(pl)
-	jgot, _ := json.MarshalIndent(pl, "", "\t")
-	jwant, _ := json.MarshalIndent(want, "", "\t")
-	if len(pl) != len(want) {
-		t.Fatalf("Got:\n%s\n\nWant:\n%s\n", jgot, jwant)
-	}
-	for i := range pl {
-		if pl[i] != want[i] {
-			t.Errorf("row#%d\n got: %+v\n\nwant: %+v\n",
-				i, pl[i], want[i])
-			t.Fatalf("Got:\n%s\n\nWant:\n%s\n", jgot, jwant)
-		}
+	for _, loopBack := range [...]bool{false, true} {
+		t.Run(fmt.Sprintf("loopback_%v", loopBack), func(t *testing.T) {
+			want := List{
+				{"tcp", 23, "", 0},
+				{"tcp", 24, "", 0},
+				{"udp", 104, "", 0},
+				{"udp", 106, "", 0},
+				{"udp", 146, "", 0},
+				{"tcp", 8185, "", 0}, // but not 8186, 8187, 8188 on localhost, when loopback is false
+			}
+			if loopBack {
+				want = append(want,
+					Port{"tcp", 8186, "", 0},
+					Port{"tcp", 8187, "", 0},
+					Port{"tcp", 8188, "", 0},
+				)
+			}
+			pl, err := appendParsePortsNetstat(nil, bufio.NewReader(strings.NewReader(netstatOutput)), loopBack)
+			if err != nil {
+				t.Fatal(err)
+			}
+			pl = sortAndDedup(pl)
+			jgot, _ := json.MarshalIndent(pl, "", "\t")
+			jwant, _ := json.MarshalIndent(want, "", "\t")
+			if len(pl) != len(want) {
+				t.Fatalf("Got:\n%s\n\nWant:\n%s\n", jgot, jwant)
+			}
+			for i := range pl {
+				if pl[i] != want[i] {
+					t.Errorf("row#%d\n got: %+v\n\nwant: %+v\n",
+						i, pl[i], want[i])
+					t.Fatalf("Got:\n%s\n\nWant:\n%s\n", jgot, jwant)
+				}
+			}
+		})
 	}
 }

portlist/poller.go

@@ -7,8 +7,8 @@
 package portlist
 
 import (
-	"context"
 	"errors"
+	"fmt"
 	"runtime"
 	"sync"
 	"time"
@@ -17,14 +17,25 @@ import (
 	"tailscale.com/envknob"
 )
 
-var pollInterval = 5 * time.Second // default; changed by some OS-specific init funcs
+var (
+	newOSImpl            func(includeLocalhost bool) osImpl // if non-nil, constructs a new osImpl.
+	pollInterval         = 5 * time.Second                  // default; changed by some OS-specific init funcs
+	debugDisablePortlist = envknob.RegisterBool("TS_DEBUG_DISABLE_PORTLIST")
+)
 
-var debugDisablePortlist = envknob.RegisterBool("TS_DEBUG_DISABLE_PORTLIST")
+// PollInterval is the recommended OS-specific interval
+// to wait between *Poller.Poll method calls.
+func PollInterval() time.Duration {
+	return pollInterval
+}
 
 // Poller scans the systems for listening ports periodically and sends
 // the results to C.
 type Poller struct {
-	c chan List // unbuffered
+	// IncludeLocalhost controls whether services bound to localhost are included.
+	//
+	// This field should only be changed before calling Run.
+	IncludeLocalhost bool
 
 	// os, if non-nil, is an OS-specific implementation of the portlist getting
 	// code. When non-nil, it's responsible for getting the complete list of
@@ -32,14 +43,9 @@ type Poller struct {
 	// addProcesses is not used.
 	// A nil values means we don't have code for getting the list on the current
 	// operating system.
-	os     osImpl
-	osOnce sync.Once // guards init of os
-
-	// closeCtx is the context that's canceled on Close.
-	closeCtx       context.Context
-	closeCtxCancel context.CancelFunc
-
-	runDone chan struct{} // closed when Run completes
+	os       osImpl
+	initOnce sync.Once // guards init of os
+	initErr  error
 
 	// scatch is memory for Poller.getList to reuse between calls.
 	scratch []Port
@@ -61,123 +67,55 @@ type osImpl interface {
 	AppendListeningPorts(base []Port) ([]Port, error)
 }
 
-// newOSImpl, if non-nil, constructs a new osImpl.
-var newOSImpl func() osImpl
-
-var errUnimplemented = errors.New("portlist poller not implemented on " + runtime.GOOS)
-
-// NewPoller returns a new portlist Poller. It returns an error
-// if the portlist couldn't be obtained.
-func NewPoller() (*Poller, error) {
-	if debugDisablePortlist() {
-		return nil, errors.New("portlist disabled by envknob")
-	}
-	p := &Poller{
-		c:       make(chan List),
-		runDone: make(chan struct{}),
-	}
-	p.closeCtx, p.closeCtxCancel = context.WithCancel(context.Background())
-	p.osOnce.Do(p.initOSField)
-	if p.os == nil {
-		return nil, errUnimplemented
-	}
-
-	// Do one initial poll synchronously so we can return an error
-	// early.
-	if pl, err := p.getList(); err != nil {
-		return nil, err
-	} else {
-		p.setPrev(pl)
-	}
-	return p, nil
-}
-
 func (p *Poller) setPrev(pl List) {
 	// Make a copy, as the pass in pl slice aliases pl.scratch and we don't want
 	// that to except to the caller.
 	p.prev = slices.Clone(pl)
 }
 
-func (p *Poller) initOSField() {
-	if newOSImpl != nil {
-		p.os = newOSImpl()
+// init initializes the Poller by ensuring it has an underlying
+// OS implementation and is not turned off by envknob.
+func (p *Poller) init() {
+	switch {
+	case debugDisablePortlist():
+		p.initErr = errors.New("portlist disabled by envknob")
+	case newOSImpl == nil:
+		p.initErr = errors.New("portlist poller not implemented on " + runtime.GOOS)
+	default:
+		p.os = newOSImpl(p.IncludeLocalhost)
 	}
 }
 
-// Updates return the channel that receives port list updates.
-//
-// The channel is closed when the Poller is closed.
-func (p *Poller) Updates() <-chan List { return p.c }
-
 // Close closes the Poller.
-// Run will return with a nil error.
 func (p *Poller) Close() error {
-	p.closeCtxCancel()
-	<-p.runDone
-	if p.os != nil {
-		p.os.Close()
+	if p.initErr != nil {
+		return p.initErr
 	}
-	return nil
+	if p.os == nil {
+		return nil
+	}
+	return p.os.Close()
 }
 
-// send sends pl to p.c and returns whether it was successfully sent.
-func (p *Poller) send(ctx context.Context, pl List) (sent bool, err error) {
-	select {
-	case p.c <- pl:
-		return true, nil
-	case <-ctx.Done():
-		return false, ctx.Err()
-	case <-p.closeCtx.Done():
-		return false, nil
+// Poll returns the list of listening ports, if changed from
+// a previous call as indicated by the changed result.
+func (p *Poller) Poll() (ports []Port, changed bool, err error) {
+	p.initOnce.Do(p.init)
+	if p.initErr != nil {
+		return nil, false, fmt.Errorf("error initializing poller: %w", p.initErr)
 	}
-}
-
-// Run runs the Poller periodically until either the context
-// is done, or the Close is called.
-//
-// Run may only be called once.
-func (p *Poller) Run(ctx context.Context) error {
-	tick := time.NewTicker(pollInterval)
-	defer tick.Stop()
-	return p.runWithTickChan(ctx, tick.C)
-}
-
-func (p *Poller) runWithTickChan(ctx context.Context, tickChan <-chan time.Time) error {
-	defer close(p.runDone)
-	defer close(p.c)
-
-	// Send out the pre-generated initial value.
-	if sent, err := p.send(ctx, p.prev); !sent {
-		return err
+	pl, err := p.getList()
+	if err != nil {
+		return nil, false, err
 	}
-
-	for {
-		select {
-		case <-tickChan:
-			pl, err := p.getList()
-			if err != nil {
-				return err
-			}
-			if pl.equal(p.prev) {
-				continue
-			}
-			p.setPrev(pl)
-			if sent, err := p.send(ctx, p.prev); !sent {
-				return err
-			}
-		case <-ctx.Done():
-			return ctx.Err()
-		case <-p.closeCtx.Done():
-			return nil
-		}
+	if pl.equal(p.prev) {
+		return nil, false, nil
 	}
+	p.setPrev(pl)
+	return p.prev, true, nil
 }
 
 func (p *Poller) getList() (List, error) {
-	if debugDisablePortlist() {
-		return nil, nil
-	}
-	p.osOnce.Do(p.initOSField)
 	var err error
 	p.scratch, err = p.os.AppendListeningPorts(p.scratch[:0])
 	return p.scratch, err

portlist/portlist.go

@@ -18,6 +18,7 @@ type Port struct {
 	Proto   string // "tcp" or "udp"
 	Port    uint16 // port number
 	Process string // optional process name, if found
+	Pid     int    // process id, if known
 }
 
 // List is a list of Ports.
@@ -69,12 +70,11 @@ func sortAndDedup(ps List) List {
 	out := ps[:0]
 	var last Port
 	for _, p := range ps {
-		protoPort := Port{Proto: p.Proto, Port: p.Port}
-		if last == protoPort {
+		if last.Proto == p.Proto && last.Port == p.Port {
 			continue
 		}
 		out = append(out, p)
-		last = protoPort
+		last = p
 	}
 	return out
 }

portlist/portlist_linux.go

@@ -35,25 +35,28 @@ type linuxImpl struct {
 	procNetFiles    []*os.File // seeked to start & reused between calls
 	readlinkPathBuf []byte
 
-	known map[string]*portMeta // inode string => metadata
-	br    *bufio.Reader
+	known            map[string]*portMeta // inode string => metadata
+	br               *bufio.Reader
+	includeLocalhost bool
 }
 
 type portMeta struct {
 	port          Port
+	pid           int
 	keep          bool
 	needsProcName bool
 }
 
-func newLinuxImplBase() *linuxImpl {
+func newLinuxImplBase(includeLocalhost bool) *linuxImpl {
 	return &linuxImpl{
-		br:    bufio.NewReader(eofReader),
-		known: map[string]*portMeta{},
+		br:               bufio.NewReader(eofReader),
+		known:            map[string]*portMeta{},
+		includeLocalhost: includeLocalhost,
 	}
 }
 
-func newLinuxImpl() osImpl {
-	li := newLinuxImplBase()
+func newLinuxImpl(includeLocalhost bool) osImpl {
+	li := newLinuxImplBase(includeLocalhost)
 	for _, name := range []string{
 		"/proc/net/tcp",
 		"/proc/net/tcp6",
@@ -220,7 +223,7 @@ func (li *linuxImpl) parseProcNetFile(r *bufio.Reader, fileBase string) error {
 		// If a port is bound to localhost, ignore it.
 		// TODO: localhost is bigger than 1 IP, we need to ignore
 		// more things.
-		if mem.HasPrefix(local, mem.S(v4Localhost)) || mem.HasPrefix(local, mem.S(v6Localhost)) {
+		if !li.includeLocalhost && (mem.HasPrefix(local, mem.S(v4Localhost)) || mem.HasPrefix(local, mem.S(v6Localhost))) {
 			continue
 		}
 
@@ -315,6 +318,9 @@ func (li *linuxImpl) findProcessNames(need map[string]*portMeta) error {
 			}
 
 			argv := strings.Split(strings.TrimSuffix(string(bs), "\x00"), "\x00")
+			if p, err := mem.ParseInt(pid, 10, 0); err == nil {
+				pe.pid = int(p)
+			}
 			pe.port.Process = argvSubject(argv...)
 			pe.needsProcName = false
 			delete(need, string(targetBuf[:n]))

portlist/portlist_linux_test.go

@@ -89,7 +89,7 @@ func TestParsePorts(t *testing.T) {
 			if tt.file != "" {
 				file = tt.file
 			}
-			li := newLinuxImplBase()
+			li := newLinuxImplBase(false)
 			err := li.parseProcNetFile(r, file)
 			if err != nil {
 				t.Fatal(err)
@@ -118,7 +118,7 @@ func BenchmarkParsePorts(b *testing.B) {
 		contents.WriteString("   3: 69050120005716BC64906EBE009ECD4D:D506 0047062600000000000000006E171268:01BB 01 00000000:00000000 02:0000009E 00000000  1000        0 151042856 2 0000000000000000 21 4 28 10 -1\n")
 	}
 
-	li := newLinuxImplBase()
+	li := newLinuxImplBase(false)
 
 	r := bytes.NewReader(contents.Bytes())
 	br := bufio.NewReader(&contents)

portlist/portlist_macos.go

@@ -29,8 +29,9 @@ type macOSImpl struct {
 	known       map[protoPort]*portMeta // inode string => metadata
 	netstatPath string                  // lazily populated
 
-	br       *bufio.Reader // reused
-	portsBuf []Port
+	br               *bufio.Reader // reused
+	portsBuf         []Port
+	includeLocalhost bool
 }
 
 type protoPort struct {
@@ -43,10 +44,11 @@ type portMeta struct {
 	keep bool
 }
 
-func newMacOSImpl() osImpl {
+func newMacOSImpl(includeLocalhost bool) osImpl {
 	return &macOSImpl{
-		known: map[protoPort]*portMeta{},
-		br:    bufio.NewReader(bytes.NewReader(nil)),
+		known:            map[protoPort]*portMeta{},
+		br:               bufio.NewReader(bytes.NewReader(nil)),
+		includeLocalhost: includeLocalhost,
 	}
 }
 
@@ -119,7 +121,7 @@ func (im *macOSImpl) appendListeningPortsNetstat(base []Port) ([]Port, error) {
 	defer cmd.Process.Wait()
 	defer cmd.Process.Kill()
 
-	return appendParsePortsNetstat(base, im.br)
+	return appendParsePortsNetstat(base, im.br, im.includeLocalhost)
 }
 
 var lsofFailed atomic.Bool
@@ -170,6 +172,7 @@ func (im *macOSImpl) addProcesses() error {
 	im.br.Reset(outPipe)
 
 	var cmd, proto string
+	var pid int
 	for {
 		line, err := im.br.ReadBytes('\n')
 		if err != nil {
@@ -184,6 +187,10 @@ func (im *macOSImpl) addProcesses() error {
 			// starting a new process
 			cmd = ""
 			proto = ""
+			pid = 0
+			if p, err := mem.ParseInt(mem.B(val), 10, 0); err == nil {
+				pid = int(p)
+			}
 		case 'c':
 			cmd = string(val) // TODO(bradfitz): avoid garbage; cache process names between runs?
 		case 'P':
@@ -202,6 +209,7 @@ func (im *macOSImpl) addProcesses() error {
 			switch {
 			case m != nil:
 				m.port.Process = cmd
+				m.port.Pid = pid
 			default:
 				// ignore: processes and ports come and go
 			}

portlist/portlist_test.go

@@ -4,13 +4,8 @@
 package portlist
 
 import (
-	"context"
-	"flag"
 	"net"
-	"runtime"
-	"sync"
 	"testing"
-	"time"
 
 	"tailscale.com/tstest"
 )
@@ -19,14 +14,14 @@ func TestGetList(t *testing.T) {
 	tstest.ResourceCheck(t)
 
 	var p Poller
-	pl, err := p.getList()
+	pl, _, err := p.Poll()
 	if err != nil {
 		t.Fatal(err)
 	}
 	for i, p := range pl {
 		t.Logf("[%d] %+v", i, p)
 	}
-	t.Logf("As String: %v", pl.String())
+	t.Logf("As String: %s", List(pl))
 }
 
 func TestIgnoreLocallyBoundPorts(t *testing.T) {
@@ -40,7 +35,7 @@ func TestIgnoreLocallyBoundPorts(t *testing.T) {
 	ta := ln.Addr().(*net.TCPAddr)
 	port := ta.Port
 	var p Poller
-	pl, err := p.getList()
+	pl, _, err := p.Poll()
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -51,27 +46,20 @@ func TestIgnoreLocallyBoundPorts(t *testing.T) {
 	}
 }
 
-var flagRunUnspecTests = flag.Bool("run-unspec-tests",
-	runtime.GOOS == "linux", // other OSes have annoying firewall GUI confirmation dialogs
-	"run tests that require listening on the the unspecified address")
-
-func TestChangesOverTime(t *testing.T) {
-	if !*flagRunUnspecTests {
-		t.Skip("skipping test without --run-unspec-tests")
-	}
-
+func TestPoller(t *testing.T) {
 	var p Poller
+	p.IncludeLocalhost = true
 	get := func(t *testing.T) []Port {
 		t.Helper()
-		s, err := p.getList()
+		s, _, err := p.Poll()
 		if err != nil {
 			t.Fatal(err)
 		}
-		return append([]Port(nil), s...)
+		return s
 	}
 
 	p1 := get(t)
-	ln, err := net.Listen("tcp", ":0")
+	ln, err := net.Listen("tcp", "127.0.0.1:0")
 	if err != nil {
 		t.Skipf("failed to bind: %v", err)
 	}
@@ -184,68 +172,21 @@ func TestEqualLessThan(t *testing.T) {
 	}
 }
 
-func TestPoller(t *testing.T) {
-	p, err := NewPoller()
+func TestClose(t *testing.T) {
+	var p Poller
+	err := p.Close()
+	if err != nil {
+		t.Fatal(err)
+	}
+	p = Poller{}
+	_, _, err = p.Poll()
+	if err != nil {
+		t.Skipf("skipping due to poll error: %v", err)
+	}
+	err = p.Close()
 	if err != nil {
-		t.Skipf("not running test: %v", err)
-	}
-	defer p.Close()
-
-	var wg sync.WaitGroup
-	wg.Add(2)
-
-	gotUpdate := make(chan bool, 16)
-
-	go func() {
-		defer wg.Done()
-		for pl := range p.Updates() {
-			// Look at all the pl slice memory to maximize
-			// chance of race detector seeing violations.
-			for _, v := range pl {
-				if v == (Port{}) {
-					// Force use
-					panic("empty port")
-				}
-			}
-			select {
-			case gotUpdate <- true:
-			default:
-			}
-		}
-	}()
-
-	tick := make(chan time.Time, 16)
-	go func() {
-		defer wg.Done()
-		if err := p.runWithTickChan(context.Background(), tick); err != nil {
-			t.Error("runWithTickChan:", err)
-		}
-	}()
-	for i := 0; i < 10; i++ {
-		ln, err := net.Listen("tcp", ":0")
-		if err != nil {
-			t.Fatal(err)
-		}
-		defer ln.Close()
-		tick <- time.Time{}
-
-		select {
-		case <-gotUpdate:
-		case <-time.After(5 * time.Second):
-			t.Fatal("timed out waiting for update")
-		}
-	}
-
-	// And a bunch of ticks without waiting for updates,
-	// to make race tests more likely to fail, if any present.
-	for i := 0; i < 10; i++ {
-		tick <- time.Time{}
-	}
-
-	if err := p.Close(); err != nil {
 		t.Fatal(err)
 	}
-	wg.Wait()
 }
 
 func BenchmarkGetList(b *testing.B) {
@@ -259,6 +200,11 @@ func BenchmarkGetListIncremental(b *testing.B) {
 func benchmarkGetList(b *testing.B, incremental bool) {
 	b.ReportAllocs()
 	var p Poller
+	p.init()
+	if p.initErr != nil {
+		b.Skip(p.initErr)
+	}
+	b.Cleanup(func() { p.Close() })
 	for i := 0; i < b.N; i++ {
 		pl, err := p.getList()
 		if err != nil {

portlist/portlist_windows.go

@@ -25,7 +25,8 @@ type famPort struct {
 }
 
 type windowsImpl struct {
-	known map[famPort]*portMeta // inode string => metadata
+	known            map[famPort]*portMeta // inode string => metadata
+	includeLocalhost bool
 }
 
 type portMeta struct {
@@ -33,9 +34,10 @@ type portMeta struct {
 	keep bool
 }
 
-func newWindowsImpl() osImpl {
+func newWindowsImpl(includeLocalhost bool) osImpl {
 	return &windowsImpl{
-		known: map[famPort]*portMeta{},
+		known:            map[famPort]*portMeta{},
+		includeLocalhost: includeLocalhost,
 	}
 }
 
@@ -58,7 +60,7 @@ func (im *windowsImpl) AppendListeningPorts(base []Port) ([]Port, error) {
 		if e.State != "LISTEN" {
 			continue
 		}
-		if !e.Local.Addr().IsUnspecified() {
+		if !im.includeLocalhost && !e.Local.Addr().IsUnspecified() {
 			continue
 		}
 		fp := famPort{
@@ -83,6 +85,7 @@ func (im *windowsImpl) AppendListeningPorts(base []Port) ([]Port, error) {
 				Proto:   "tcp",
 				Port:    e.Local.Port(),
 				Process: process,
+				Pid:     e.Pid,
 			},
 		}
 		im.known[fp] = pm

release/dist/cli/cli.go

@@ -124,10 +124,11 @@ func runBuild(ctx context.Context, filters []string, targets []dist.Target) erro
 		if err != nil {
 			return fmt.Errorf("getting absolute path of manifest: %w", err)
 		}
-		fmt.Println(manifest)
-		fmt.Println(filepath.Join(b.Out, out[0]))
 		for i := range out {
-			rel, err := filepath.Rel(filepath.Dir(manifest), filepath.Join(b.Out, out[i]))
+			if !filepath.IsAbs(out[i]) {
+				out[i] = filepath.Join(b.Out, out[i])
+			}
+			rel, err := filepath.Rel(filepath.Dir(manifest), out[i])
 			if err != nil {
 				return fmt.Errorf("making path relative: %w", err)
 			}

release/dist/dist.go

@@ -17,6 +17,7 @@ import (
 	"sort"
 	"strings"
 	"sync"
+	"time"
 
 	"tailscale.com/util/multierr"
 	"tailscale.com/version/mkversion"
@@ -44,6 +45,8 @@ type Build struct {
 	Go string
 	// Version is the version info of the build.
 	Version mkversion.VersionInfo
+	// Time is the timestamp of the build.
+	Time time.Time
 
 	// once is a cache of function invocations that should run once per process
 	// (for example building a helper docker container)
@@ -86,6 +89,7 @@ func NewBuild(repo, out string) (*Build, error) {
 		Out:          out,
 		Go:           goTool,
 		Version:      mkversion.Info(),
+		Time:         time.Now().UTC(),
 		extra:        map[any]any{},
 		goBuildLimit: make(chan struct{}, runtime.NumCPU()),
 	}
@@ -114,6 +118,9 @@ func (b *Build) Build(targets []Target) (files []string, err error) {
 		go func(i int, t Target) {
 			var err error
 			defer func() {
+				if err != nil {
+					err = fmt.Errorf("%s: %w", t, err)
+				}
 				errs[i] = err
 				wg.Done()
 			}()

release/dist/synology/files/Tailscale.sc

@@ -0,0 +1,6 @@
+[Tailscale]
+title="Tailscale"
+desc="Tailscale VPN"
+port_forward="no"
+src.ports="41641/udp"
+dst.ports="41641/udp"

release/dist/synology/files/config

@@ -0,0 +1,12 @@
+{
+	".url": {
+		"SYNO.SDS.Tailscale": {
+			"type": "url",
+			"version": "1.8.3",
+			"title": "Tailscale",
+			"icon": "PACKAGE_ICON_256.PNG",
+			"url": "webman/3rdparty/Tailscale/",
+			"urlTarget": "_syno_tailscale"
+		}
+	}
+}

release/dist/synology/files/index.cgi

@@ -0,0 +1,2 @@
+#! /bin/sh
+exec /var/packages/Tailscale/target/bin/tailscale web -cgi

release/dist/synology/files/logrotate-dsm6

@@ -0,0 +1,8 @@
+/var/packages/Tailscale/etc/tailscaled.stdout.log {
+  size 10M
+  rotate 3
+  missingok
+  copytruncate
+  compress
+  notifempty
+}

release/dist/synology/files/logrotate-dsm7

@@ -0,0 +1,8 @@
+/var/packages/Tailscale/var/tailscaled.stdout.log {
+  size 10M
+  rotate 3
+  missingok
+  copytruncate
+  compress
+  notifempty
+}

release/dist/synology/files/privilege-dsm6

@@ -0,0 +1,7 @@
+{
+  "defaults":{
+    "run-as": "root"
+  },
+  "username": "tailscale",
+  "groupname": "tailscale"
+}

release/dist/synology/files/privilege-dsm7

@@ -0,0 +1,7 @@
+{
+  "defaults":{
+    "run-as": "package"
+  },
+  "username": "tailscale",
+  "groupname": "tailscale"
+}

release/dist/synology/files/privilege-dsm7.for-package-center

@@ -0,0 +1,13 @@
+{
+  "defaults":{
+    "run-as": "package"
+  },
+  "username": "tailscale",
+  "groupname": "tailscale",
+  "tool": [{
+    "relpath": "bin/tailscaled",
+    "user": "package",
+    "group": "package",
+    "capabilities": "cap_net_admin,cap_chown,cap_net_raw"
+  }]
+}