[client] Drop stale WG timeouts via the watcher context instead of a generation counter

Tag each WG timeout event with the watcher's context and discard it at
dispatch time when that context is cancelled. This replaces the earlier
generation counter and the mailbox-level epoch filter: cancelling the
watcher is now the single act that both stops it and retires its pending
timeouts, so the two can no longer diverge, and the staleness check moves
to dispatch time so a cancel performed by an earlier event in the same
drained batch already suppresses a superseded watcher's timeout.

.git-branches.toml

@@ -3,7 +3,7 @@
 [branches]
 main = "main"
 perennials = []
-perennial-regex = "^release-"
+perennial-regex = ""
 
 [create]
 new-branch-type = "feature"

.github/workflows/check-license-dependencies.yml

@@ -2,7 +2,7 @@ name: Check License Dependencies
 
 on:
   push:
-    branches: [main, "release-*"]
+    branches: [main]
     paths:
       - "go.mod"
       - "go.sum"

.github/workflows/frontend-ui.yml

@@ -10,7 +10,6 @@ on:
   push:
     branches:
       - main
-      - "release-*"
     paths:
       - "client/ui/frontend/**"
       - "client/ui/i18n/**"

.github/workflows/golang-test-darwin.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-      - "release-*"
   pull_request:
 
 concurrency:

.github/workflows/golang-test-freebsd.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-      - "release-*"
   pull_request:
 
 concurrency:

.github/workflows/golang-test-linux.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-      - "release-*"
   pull_request:
 
 concurrency:

.github/workflows/golang-test-windows.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-      - "release-*"
   pull_request:
 
 env:

.github/workflows/install-script-test.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-      - "release-*"
   pull_request:
     paths:
       - "release_files/install.sh"

.github/workflows/mobile-build-validation.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-      - "release-*"
   pull_request:
 
 concurrency:

.github/workflows/release.yml

@@ -6,7 +6,6 @@ on:
       - "v*"
     branches:
       - main
-      - "release-*"
   pull_request:
 
 env:
@@ -255,19 +254,15 @@ jobs:
         id: tag_and_push_images
         if: |
           (github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository) ||
-          (github.event_name == 'push' && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/heads/release-')))
+          (github.event_name == 'push' && github.ref == 'refs/heads/main')
         run: |
           set -euo pipefail
 
           resolve_tags() {
             if [[ "${{ github.event_name }}" == "pull_request" ]]; then
               echo "pr-${{ github.event.pull_request.number }}"
-            elif [[ "${{ github.ref }}" == "refs/heads/main" ]]; then
-              echo "main sha-$(git rev-parse --short HEAD)"
             else
-              # Release branches get an immutable sha-* tag only — the floating
-              # "main" tag must never move from a release branch.
-              echo "sha-$(git rev-parse --short HEAD)"
+              echo "main sha-$(git rev-parse --short HEAD)"
             fi
           }
 
@@ -480,132 +475,6 @@ jobs:
           path: dist/
           retention-days: 3
 
-  release_ui_gtk3:
-    # Legacy GTK3/WebKit2GTK 4.1 UI build for distros without WebKitGTK 6.0
-    # (Ubuntu 22.04, Debian 12, RHEL 9, Fedora <=39). Runs on ubuntu-22.04 so
-    # the binary links against the oldest supported glibc.
-    runs-on: ubuntu-22.04
-    outputs:
-      release_ui_gtk3_artifact_url: ${{ steps.upload_release_ui_gtk3.outputs.artifact-url }}
-    steps:
-      - name: Checkout
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
-        with:
-          fetch-depth: 0 # It is required for GoReleaser to work properly
-          persist-credentials: false
-
-      - name: Parse semver string
-        id: semver_parser
-        uses: netbirdio/shared-actions/actions/parse-semver@be5df6047383da2236e02243cceb857d8567c27e # v0.0.2
-
-      - name: Set snapshot flag
-        if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
-        run: |
-          echo "flags=--snapshot" >> $GITHUB_ENV
-
-      - name: Set build vars
-        if: ${{ startsWith(github.ref, 'refs/tags/v') }}
-        run: |
-          if [[ "x-${{ steps.semver_parser.outputs.prerelease }}" == "x-" && "x-${{ github.repository }}" == "x-netbirdio/netbird" ]]; then
-            echo "x-${{ github.repository }}"
-            echo "x-${{ steps.semver_parser.outputs.prerelease }}"
-            echo "SKIP_PUBLISH=false" >> $GITHUB_ENV
-          else
-            echo "x-${{ github.repository }}"
-            echo "x-${{ steps.semver_parser.outputs.prerelease }}"
-          fi
-
-      - name: Set up Go
-        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
-        with:
-          go-version-file: "go.mod"
-          cache: false
-      - name: Cache Go modules
-        # Restore-only from the release_ui cache written by trusted runs; the
-        # module cache is identical (same go.sum) and stale build-cache
-        # entries just miss.
-        uses: actions/cache/restore@2c8a9bd7457de244a408f35966fab2fb45fda9c8 # v6.0.0
-        with:
-          path: |
-            ~/go/pkg/mod
-            ~/.cache/go-build
-          key: ${{ runner.os }}-ui-go-releaser-${{ hashFiles('**/go.sum') }}
-          restore-keys: |
-            ${{ runner.os }}-ui-go-releaser-
-
-      - name: Install modules
-        run: go mod tidy
-
-      - name: check git status
-        run: git --no-pager diff --exit-code
-
-      - name: Set up Node.js
-        uses: actions/setup-node@49933ea5288caeca8642d1e84afbd3f7d6820020 # v4
-        with:
-          node-version: '22'
-
-      - name: Set up pnpm
-        uses: pnpm/action-setup@a3252b78c470c02df07e9d59298aecedc3ccdd6d # v3.0.0
-        with:
-          version: 11
-
-      - name: Install dependencies
-        run: sudo apt update && sudo apt install -y -q libgtk-3-dev libwebkit2gtk-4.1-dev
-
-      - name: Decode GPG signing key
-        if: github.event_name != 'pull_request' || github.event.pull_request.head.repo.full_name == github.repository
-        env:
-          GPG_RPM_PRIVATE_KEY: ${{ secrets.GPG_RPM_PRIVATE_KEY }}
-        run: |
-          echo "$GPG_RPM_PRIVATE_KEY" | base64 -d > /tmp/gpg-rpm-signing-key.asc
-          echo "GPG_RPM_KEY_FILE=/tmp/gpg-rpm-signing-key.asc" >> $GITHUB_ENV
-
-      - name: Install wails3 CLI
-        # Version derived from go.mod so the binding generator always matches
-        # the wails runtime the binary links against.
-        # -tags gtk3: the CLI links the wails runtime's cgo packages, and the
-        # default tags request gtk4/webkitgtk-6.0 pkg-config entries that do
-        # not exist on ubuntu-22.04.
-        run: |
-          WAILS_VERSION=$(go list -m -f '{{.Version}}' github.com/wailsapp/wails/v3)
-          go install -tags gtk3 github.com/wailsapp/wails/v3/cmd/wails3@$WAILS_VERSION
-
-      - name: Run GoReleaser
-        uses: goreleaser/goreleaser-action@5daf1e915a5f0af01ddbcd89a43b8061ff4f1a89 # v7.2.2
-        with:
-          version: ${{ env.GORELEASER_VER }}
-          args: release --config .goreleaser_ui_gtk3.yaml --clean ${{ env.flags }}
-        env:
-          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-          UPLOAD_DEBIAN_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
-          UPLOAD_YUM_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
-          GPG_RPM_KEY_FILE: ${{ env.GPG_RPM_KEY_FILE }}
-          NFPM_NETBIRD_UI_RPM_GTK3_PASSPHRASE: ${{ secrets.GPG_RPM_PASSPHRASE }}
-          SKIP_PUBLISH: ${{ env.SKIP_PUBLISH }}
-      - name: Verify RPM signatures
-        run: |
-          docker run --rm -v $(pwd)/dist:/dist fedora:41 bash -c '
-            dnf install -y -q rpm-sign curl >/dev/null 2>&1
-            curl -sSL https://pkgs.netbird.io/yum/repodata/repomd.xml.key -o /tmp/rpm-pub.key
-            rpm --import /tmp/rpm-pub.key
-            echo "=== Verifying RPM signatures ==="
-            for rpm_file in /dist/*.rpm; do
-              [ -f "$rpm_file" ] || continue
-              echo "--- $(basename $rpm_file) ---"
-              rpm -K "$rpm_file"
-            done
-          '
-      - name: Clean up GPG key
-        if: always()
-        run: rm -f /tmp/gpg-rpm-signing-key.asc
-      - name: upload non tags for debug purposes
-        id: upload_release_ui_gtk3
-        uses: actions/upload-artifact@043fb46d1a93c77aae656e7c1c64a875d1fc6a0a #v7.0.1
-        with:
-          name: release-ui-gtk3
-          path: dist/
-          retention-days: 3
-
   release_ui_darwin:
     runs-on: macos-latest
     outputs:
@@ -819,7 +688,7 @@ jobs:
   comment_release_artifacts:
     name: Comment release artifacts
     runs-on: ubuntu-latest
-    needs: [release, release_ui, release_ui_gtk3, release_ui_darwin]
+    needs: [release, release_ui, release_ui_darwin]
     if: ${{ always() && github.event_name == 'pull_request' && github.event.pull_request.head.repo.full_name == github.repository }}
     permissions:
       contents: read
@@ -831,14 +700,12 @@ jobs:
         env:
           RELEASE_RESULT: ${{ needs.release.result }}
           RELEASE_UI_RESULT: ${{ needs.release_ui.result }}
-          RELEASE_UI_GTK3_RESULT: ${{ needs.release_ui_gtk3.result }}
           RELEASE_UI_DARWIN_RESULT: ${{ needs.release_ui_darwin.result }}
           RELEASE_ARTIFACT_URL: ${{ needs.release.outputs.release_artifact_url }}
           LINUX_PACKAGES_ARTIFACT_URL: ${{ needs.release.outputs.linux_packages_artifact_url }}
           WINDOWS_PACKAGES_ARTIFACT_URL: ${{ needs.release.outputs.windows_packages_artifact_url }}
           MACOS_PACKAGES_ARTIFACT_URL: ${{ needs.release.outputs.macos_packages_artifact_url }}
           RELEASE_UI_ARTIFACT_URL: ${{ needs.release_ui.outputs.release_ui_artifact_url }}
-          RELEASE_UI_GTK3_ARTIFACT_URL: ${{ needs.release_ui_gtk3.outputs.release_ui_gtk3_artifact_url }}
           RELEASE_UI_DARWIN_ARTIFACT_URL: ${{ needs.release_ui_darwin.outputs.release_ui_darwin_artifact_url }}
           GHCR_IMAGES_MARKDOWN: ${{ needs.release.outputs.ghcr_images }}
         with:
@@ -861,7 +728,6 @@ jobs:
               ['Windows packages', process.env.WINDOWS_PACKAGES_ARTIFACT_URL, process.env.RELEASE_RESULT],
               ['macOS packages', process.env.MACOS_PACKAGES_ARTIFACT_URL, process.env.RELEASE_RESULT],
               ['UI artifacts', process.env.RELEASE_UI_ARTIFACT_URL, process.env.RELEASE_UI_RESULT],
-              ['UI GTK3 artifacts', process.env.RELEASE_UI_GTK3_ARTIFACT_URL, process.env.RELEASE_UI_GTK3_RESULT],
               ['UI macOS artifacts', process.env.RELEASE_UI_DARWIN_ARTIFACT_URL, process.env.RELEASE_UI_DARWIN_RESULT],
             ];
 
@@ -918,7 +784,7 @@ jobs:
 
   trigger_signer:
     runs-on: ubuntu-latest
-    needs: [release, release_ui, release_ui_gtk3, release_ui_darwin, test_windows_installer]
+    needs: [release, release_ui, release_ui_darwin, test_windows_installer]
     if: startsWith(github.ref, 'refs/tags/')
     steps:
       - name: Trigger binaries sign pipelines

.github/workflows/test-infrastructure-files.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-      - "release-*"
   pull_request:
     paths:
       - "infrastructure_files/**"
@@ -258,15 +257,6 @@ jobs:
         with:
           persist-credentials: false
 
-      - name: Verify fresh-install session cookie key hardening
-        run: |
-          grep -Fxq '  SESSION_COOKIE_ENCRYPTION_KEY=$(openssl rand -base64 32)' infrastructure_files/getting-started.sh
-          grep -Fxq '    sessionCookieEncryptionKey: "$SESSION_COOKIE_ENCRYPTION_KEY"' infrastructure_files/getting-started.sh
-          grep -Fxq '  install -m 600 /dev/null config.yaml' infrastructure_files/getting-started.sh
-          grep -Fxq '  openssl rand -base64 32' infrastructure_files/getting-started-enterprise.sh
-          grep -Fxq '  NETBIRD_SESSION_COOKIE_ENCRYPTION_KEY=$(rand_b64_key)' infrastructure_files/getting-started-enterprise.sh
-          grep -Fxq '    sessionCookieEncryptionKey: "${NETBIRD_SESSION_COOKIE_ENCRYPTION_KEY}"' infrastructure_files/getting-started-enterprise.sh
-
       - name: Verify Dex retirement notice
         run: |
           if infrastructure_files/getting-started-with-dex.sh >stdout.txt 2>stderr.txt; then

.github/workflows/wasm-build-validation.yml

@@ -4,7 +4,6 @@ on:
   push:
     branches:
       - main
-      - "release-*"
   pull_request:
 
 concurrency:

.goreleaser.yaml

@@ -468,13 +468,6 @@ checksum:
     - glob: ./infrastructure_files/migrate-to-enterprise.sh
 
 release:
-  # The signing pipeline (netbirdio/sign-pipelines, dispatched by
-  # trigger_signer) marks the release latest once the Windows and macOS
-  # artifacts are signed. Without this override goreleaser marks it latest
-  # at publish time, while those artifacts are still unsigned.
-  make_latest: false
-  # Mark x.y.z-rc.* and other prerelease tags as prereleases on GitHub.
-  prerelease: auto
   extra_files:
     - glob: ./infrastructure_files/getting-started-with-zitadel.sh
     - glob: ./release_files/install.sh

.goreleaser_ui.yaml

@@ -96,7 +96,6 @@ nfpms:
       - netbird (>= 0.75.0)
       - libgtk-4-1 (>= 4.14)
       - libwebkitgtk-6.0-4
-      - xdg-utils
 
   - maintainer: Netbird <dev@netbird.io>
     description: Netbird client UI.
@@ -120,7 +119,6 @@ nfpms:
       - netbird >= 0.75.0
       - (gtk4 >= 4.14 or libgtk-4-1 >= 4.14)
       - (webkitgtk6.0 or libwebkitgtk-6_0-4)
-      - xdg-utils
 
     rpm:
       signature:
@@ -144,11 +142,3 @@ uploads:
     target: https://pkgs.wiretrustee.com/yum/{{ .Arch }}{{ if .Arm }}{{ .Arm }}{{ end }}
     username: dev@wiretrustee.com
     method: PUT
-
-release:
-  # Uploads into the release created by the main .goreleaser.yaml run.
-  # make_latest stays false everywhere: the signing pipeline
-  # (netbirdio/sign-pipelines) marks the release latest after the Windows
-  # and macOS artifacts are signed.
-  make_latest: false
-  prerelease: auto

.goreleaser_ui_darwin.yaml

@@ -43,11 +43,3 @@ checksum:
   name_template: "{{ .ProjectName }}_darwin_checksums.txt"
 changelog:
   disable: true
-
-release:
-  # Uploads into the release created by the main .goreleaser.yaml run.
-  # make_latest stays false everywhere: the signing pipeline
-  # (netbirdio/sign-pipelines) marks the release latest after the Windows
-  # and macOS artifacts are signed.
-  make_latest: false
-  prerelease: auto

.goreleaser_ui_gtk3.yaml

@@ -1,150 +0,0 @@
-version: 2
-env:
-  - SKIP_PUBLISH={{ if index .Env "SKIP_PUBLISH" }}{{ .Env.SKIP_PUBLISH }}{{ else }}true{{ end }}
-project_name: netbird-ui
-
-before:
-  hooks:
-    # Bindings are gitignored; regenerate before the frontend build so
-    # the @wailsio/runtime Vite plugin can resolve them (vite refuses to
-    # build without them).
-    # -f '-tags gtk3': the generator type-checks client/ui, whose cgo imports
-    # would otherwise resolve gtk4/webkitgtk-6.0 pkg-config entries that do
-    # not exist on ubuntu-22.04.
-    - sh -c 'cd client/ui && wails3 generate bindings -clean=true -ts -f "-tags gtk3"'
-    - sh -c 'cd client/ui/frontend && pnpm install --frozen-lockfile && pnpm build'
-
-builds:
-  # Legacy GTK3 / WebKit2GTK 4.1 build for distros without WebKitGTK 6.0
-  # (Ubuntu 22.04, Debian 12, RHEL 9, Fedora <=39). The gtk3 tag flips the
-  # Wails Linux backend to the GTK3 stack and swaps our GTK4-only XEmbed
-  # tray host for the pure-Go stub (client/ui/xembed_host_gtk3_linux.go).
-  # Must be built on the oldest supported glibc (ubuntu-22.04 runner).
-  - id: netbird-ui-gtk3
-    dir: client/ui
-    binary: netbird-ui
-    env:
-      - CGO_ENABLED=1
-    goos:
-      - linux
-    goarch:
-      - amd64
-    ldflags:
-      - -s -w -X github.com/netbirdio/netbird/version.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
-    mod_timestamp: "{{ .CommitTimestamp }}"
-    tags:
-      - production
-      - gtk3
-
-archives:
-  - id: linux-gtk3-arch
-    name_template: "{{ .ProjectName }}-linux-gtk3_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
-    builds:
-      - netbird-ui-gtk3
-
-nfpms:
-  # Same package_name as the GTK4 packages -- the two are mutually-exclusive
-  # alternatives served from separate repo paths (see uploads below); a given
-  # distro points at exactly one of them. The file names must still differ:
-  # the Debian pool is shared storage keyed by file name, so a default-named
-  # gtk3 .deb would overwrite the stable one.
-  - maintainer: Netbird <dev@netbird.io>
-    description: Netbird client UI.
-    homepage: https://netbird.io/
-    license: BSD-3-Clause
-    vendor: NetBird
-    id: netbird_ui_deb_gtk3
-    package_name: netbird-ui
-    file_name_template: "{{ .PackageName }}-gtk3_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
-    builds:
-      - netbird-ui-gtk3
-    formats:
-      - deb
-    scripts:
-      postinstall: "release_files/ui-post-install.sh"
-    contents:
-      - src: client/ui/build/linux/netbird.desktop
-        dst: /usr/share/applications/org.wails.netbird.desktop
-      - src: client/ui/build/appicon.png
-        dst: /usr/share/pixmaps/netbird.png
-    dependencies:
-      - netbird (>= 0.75.0)
-      - libgtk-3-0
-      - libwebkit2gtk-4.1-0
-      - xdg-utils
-
-  - maintainer: Netbird <dev@netbird.io>
-    description: Netbird client UI.
-    homepage: https://netbird.io/
-    license: BSD-3-Clause
-    vendor: NetBird
-    id: netbird_ui_rpm_gtk3
-    package_name: netbird-ui
-    file_name_template: "{{ .PackageName }}-gtk3_{{ .Version }}_{{ .Os }}_{{ .Arch }}"
-    builds:
-      - netbird-ui-gtk3
-    formats:
-      - rpm
-    scripts:
-      postinstall: "release_files/ui-post-install.sh"
-    contents:
-      - src: client/ui/build/linux/netbird.desktop
-        dst: /usr/share/applications/org.wails.netbird.desktop
-      - src: client/ui/build/appicon.png
-        dst: /usr/share/pixmaps/netbird.png
-    dependencies:
-      - netbird >= 0.75.0
-      - (gtk3 or libgtk-3-0)
-      - (webkit2gtk4.1 or libwebkit2gtk-4_1-0)
-      - xdg-utils
-
-    rpm:
-      signature:
-        key_file: '{{ if index .Env "GPG_RPM_KEY_FILE" }}{{ .Env.GPG_RPM_KEY_FILE }}{{ end }}'
-
-# The GTK4 UI job shares project_name, so the default checksum file name would
-# collide with it on the shared GitHub release.
-checksum:
-  name_template: "{{ .ProjectName }}_gtk3_checksums.txt"
-
-changelog:
-  disable: true
-
-uploads:
-  # The gtk3 packages reuse the netbird-ui package name, so they live in
-  # dedicated repo paths (deb distribution `gtk3`, yum path `yum-gtk3`) that
-  # legacy distros point their repo config at.
-  #
-  # GoReleaser derives the credential env var from the upload name, so these
-  # would look for UPLOAD_DEBIAN-GTK3_SECRET / UPLOAD_YUM-GTK3_SECRET. The
-  # release workflow only exports UPLOAD_DEBIAN_SECRET / UPLOAD_YUM_SECRET, and
-  # a missing secret is a silent skip rather than a failure -- the packages
-  # reached the GitHub release but never the package repositories. Point
-  # `password` at the exported vars so both uploads authenticate.
-  - name: debian-gtk3
-    skip: "{{ .Env.SKIP_PUBLISH }}"
-    ids:
-      - netbird_ui_deb_gtk3
-    mode: archive
-    target: https://pkgs.wiretrustee.com/debian/pool/{{ .ArtifactName }};deb.distribution=gtk3;deb.component=main;deb.architecture={{ if .Arm }}armhf{{ else }}{{ .Arch }}{{ end }};deb.package=
-    username: dev@wiretrustee.com
-    password: "{{ .Env.UPLOAD_DEBIAN_SECRET }}"
-    method: PUT
-
-  - name: yum-gtk3
-    skip: "{{ .Env.SKIP_PUBLISH }}"
-    ids:
-      - netbird_ui_rpm_gtk3
-    mode: archive
-    target: https://pkgs.wiretrustee.com/yum-gtk3/{{ .Arch }}{{ if .Arm }}{{ .Arm }}{{ end }}
-    username: dev@wiretrustee.com
-    password: "{{ .Env.UPLOAD_YUM_SECRET }}"
-    method: PUT
-
-release:
-  # Uploads into the release created by the main .goreleaser.yaml run.
-  # make_latest stays false everywhere: the signing pipeline
-  # (netbirdio/sign-pipelines) marks the release latest after the Windows
-  # and macOS artifacts are signed.
-  make_latest: false
-  prerelease: auto

AGENTS.md

@@ -14,22 +14,20 @@ in this file, not duplicated there.
 
 ## Contents
 
-- [STOP and ask the user before](#stop-and-ask-the-user-before)
-- [Quick reference](#quick-reference)
-- [Structure](#structure)
-- [Where to look](#where-to-look)
-- [Security](#security)
-- [Agent conventions](#agent-conventions)
-- [Repo-wide principles](#repo-wide-principles)
-- [Type safety](#type-safety)
-- [Concurrency and lifecycle](#concurrency-and-lifecycle)
-- [Error handling](#error-handling)
-- [Comments](#comments)
-- [Testing](#testing)
-- [Pitfalls](#pitfalls)
-- [Commits, PRs, releases](#commits-prs-releases)
-- [After you push: CI and review bots](#after-you-push-ci-and-review-bots)
-- [Discussion and support](#discussion-and-support)
+- [NetBird Agent Guidelines](#netbird-agent-guidelines)
+  - [Contents](#contents)
+  - [STOP and ask the user before](#stop-and-ask-the-user-before)
+  - [Quick reference](#quick-reference)
+  - [Structure](#structure)
+  - [Where to look](#where-to-look)
+  - [Repo-wide principles](#repo-wide-principles)
+  - [Error handling](#error-handling)
+  - [Comments](#comments)
+  - [Testing](#testing)
+  - [Pitfalls](#pitfalls)
+  - [Commits, PRs, releases](#commits-prs-releases)
+  - [After you push: CI and review bots](#after-you-push-ci-and-review-bots)
+  - [Discussion and support](#discussion-and-support)
 
 ## STOP and ask the user before
 
@@ -159,125 +157,11 @@ netbird/
 | LLM routing / Agent Network | `proxy/internal/llm/`, `agent-network/`                      |
 | End-to-end tests            | `e2e/`                                                       |
 
-## Security
-
-### Never fail open
-
-When a security check — access control, an IP restriction, an auth decision —
-hits an error such as an unparseable value, an unavailable lookup, or a state it
-does not recognize, it must **deny**. Never skip the check or allow the request
-through because the check itself failed, and make the `default` and unknown cases
-of a security-related `switch` deny rather than fall through.
-
-### Daemon RPC input is untrusted
-
-The agent runs as root (LocalSystem on Windows), so a daemon RPC crosses a
-privilege boundary: treat every field as untrusted input rather than as something
-the UI or CLI validated on the way in.
-
-When you add or change an RPC, ask what the handler does with caller input while
-running as root. If the answer touches a filesystem path, a URL or host, or a
-privileged state change, it needs a gate **in the handler** — a check in the client
-that normally calls it is not a check at all.
-
-- **A caller-supplied path the daemon opens.** Never `os.Open` it as root.
-  Constrain it, then open it *as the caller* with `ipcauth.OpenOwnedFile`, which
-  opens `O_NOFOLLOW`, requires a regular file, and refuses a file the caller does
-  not own — so a symlink or hardlink aimed at a root-only file is rejected.
-- **A caller-supplied URL or host the daemon fetches.** Restrict the scheme and
-  allow only known hosts for unprivileged callers. Prefer a lexical host
-  allowlist plus TLS verification over "resolve the host, then reject private
-  IPs": the resolve-then-trust pattern has a DNS-rebinding race (public IP at
-  check time, attacker IP at connect time), while a name allowlist has no IP
-  check to race. Never accept `http://` where `https://` is expected.
-- **A privileged state change** (SSH root login, management URL, deregistration)
-  gates on the caller identity from `ipcauth.CallerIdentity(ctx)`.
-
-Caller identity comes from the kernel — `SO_PEERCRED`, `LOCAL_PEERCRED`, or the
-named-pipe client token — and never from an RPC field. When
-`ipcauth.CallerIdentity` reports that it could not determine an identity, **deny**;
-do not fall back to treating the caller as the transport peer.
-
-## Agent conventions
-
-### Three networking modes
-
-Where packets actually flow depends on the mode the agent is running in. The
-three are not interchangeable, so establish which one a change applies to — and
-what it should do in the other two — before you write it.
-
-- **kernel mode** (Linux only): in-kernel WireGuard®. The kernel handles both
-  peer-to-peer and routed traffic, and ACLs are iptables or nftables rules. The
-  client programs kernel facilities but never sees the traffic itself.
-- **userspace mode** (wireguard-go with a TUN): wireguard-go runs in-process. The
-  kernel handles peer-to-peer traffic once it leaves the TUN, while routed traffic
-  — exit nodes and network routes — goes through the userspace forwarder, which
-  terminates the connection and re-establishes it over OS sockets. Used on
-  platforms without kernel WireGuard® or when the user opts out.
-- **netstack mode**: wireguard-go in-process with no TUN and no kernel
-  networking. The forwarder does all routing by stitching userspace sockets, and
-  listeners such as the embedded SSH and DNS servers bind on a gVisor netstack.
-  Used where the process cannot create a TUN device, such as the embedded client
-  (`client/embed/`) and the WASM build.
-
-### The overlay interface is not "WireGuard"
-
-Do not put "WireGuard" in identifiers or comments unless the code is genuinely
-coupled to WireGuard® specifically — a wireguard-go call, a handshake field, a
-kernel WireGuard® netlink attribute. For the interface, the host, peers, or
-traffic in general, say "the NetBird interface", "the interface", or "the overlay".
-Most firewall, routing, and DNS code is transport-agnostic, so a WireGuard®
-reference there is simply inaccurate and rots as the transports change.
-
-### IPv6 is a soft feature
-
-The IPv6 overlay is opt-in dual-stack, and capability can change at runtime. Treat
-it as soft rather than a requirement:
-
-- Gate local v6 paths on the interface accessor (`wgIface.Address().HasIPv6()`),
-  not on raw state fields, and skip the v6 path when the host has no v6 rather
-  than returning an error.
-- Treat an empty or unparseable peer v6 address as "no v6 for that peer" and skip
-  it, keeping the v4 path working.
-- Never let a missing v6 break v4. Fail-closed is for security checks; a
-  capability mismatch skips the v6 work and carries on.
-
-### Environment variables
-
-Name the variable in a constant and parse booleans with `strconv.ParseBool` rather
-than comparing strings inline, so an unexpected value is logged instead of
-silently meaning false:
-
-```go
-const EnvDisableFeature = "NB_DISABLE_FEATURE"
-
-func isDisabledByEnv() bool {
-    val := os.Getenv(EnvDisableFeature)
-    if val == "" {
-        return false
-    }
-    disabled, err := strconv.ParseBool(val)
-    if err != nil {
-        log.Warnf("failed to parse %s: %v", EnvDisableFeature, err)
-        return false
-    }
-    return disabled
-}
-```
-
-### Validating against protocol specs
-
-When a change depends on what a protocol actually mandates, read the specification
-text from the [IETF datatracker](https://datatracker.ietf.org/) rather than a
-summary, and check that you have the current RFC — the widely cited one for a
-protocol is often superseded. Cite the section, not just the document, so a
-reviewer can jump straight to the rule.
-
 ## Repo-wide principles
 
 1. **Run `go fmt` on every modified Go file.** Formatting is not optional.
-2. **Zero unaddressed linter warnings.** Fix what `golangci-lint` reports on code
-   you touch, and delete imports, helpers, and parameters your refactor orphaned.
+2. **Zero unaddressed diagnostics.** Fix IDE and linter warnings on code you
+   touch, and delete imports, helpers, and parameters your refactor orphaned.
    Exception: unused parameters in shared code may be consumed by builds outside
    this repository — do not remove them, ask instead.
 3. **Function comments are mandatory for exported functions**, written as full
@@ -291,12 +175,9 @@ reviewer can jump straight to the rule.
 7. **Avoid LLM-slop tells:** em dashes, hedging narration, restating the diff in
    prose, trailing summaries. Defaults, not absolute bans. Applies to code,
    comments, commit messages, and PR descriptions alike.
-8. **Concurrency: do a two-pass race analysis after every change** that touches
-   shared state, including reads of existing maps and slices. Guard them with a
-   mutex (or an atomic or channel where that fits better), keep critical
-   sections short, and run `go test -race` on the touched packages. See
-   [Concurrency and lifecycle](#concurrency-and-lifecycle) for the failure modes
-   to check for.
+8. **Concurrency: do a two-pass race analysis after every change** that adds
+   shared state. Guard maps and slices with a mutex, keep critical sections
+   short, and run `go test -race` on the touched packages.
 9. **Cross-platform builds must keep working.** The agent targets Linux, macOS,
    Windows, FreeBSD, Android, and iOS. When you add a platform-specific file,
    add the counterpart or a build-tagged fallback for the others.
@@ -304,93 +185,6 @@ reviewer can jump straight to the rule.
 11. **Never log secrets** — private keys, setup keys, tokens, PAT values — and
     keep peer IPs and hostnames out of logs above debug level.
 
-## Type safety
-
-**No bare primitives for domain concepts.** A `string` parameter for an account
-ID next to a `string` parameter for a peer ID is two bugs waiting to happen,
-because the compiler cannot catch the swap. Declare the type once and use it
-throughout, converting only at the boundaries where data enters or leaves —
-protobuf, gRPC, HTTP, an external library.
-
-```go
-type ServiceID string
-type AccountID string
-
-// Internal: typed all the way through
-func (r *Router) RemoveRoute(host SNIHost, svcID ServiceID) { ... }
-
-// Proto boundary: convert once, on the way in and on the way out
-svcID := ServiceID(mapping.GetId())
-req.ServiceId = string(svcID)
-```
-
-- **IP addresses are `netip.Addr`**, not `string` and not `net.IP`. Parse at the
-  boundary and pass the typed value inward.
-- **Always `Unmap()`** after parsing an address, after converting from `net.IP`,
-  and after extracting one from `RemoteAddr()`. This normalizes a v4-mapped v6
-  address (`::ffff:10.1.2.3`) to plain v4 so IPv4 rules match it. A stored or
-  compared mapped address silently fails to match those rules.
-- **Ports are `uint16`** internally; use `int` only where a library forces it and
-  convert immediately.
-- **Enums are a typed string with constants**, so the valid set is discoverable
-  and a typo fails to compile.
-- **Map keys follow the same rule**, and must be a real type (`type ServiceID
-  string`) rather than an alias (`type serviceID = string`) — an alias silently
-  accepts bare strings.
-
-## Concurrency and lifecycle
-
-Beyond the mutex hygiene in the principles above, check for these failure
-modes.
-
-- **Never read a struct field inside a goroutine** when another goroutine may nil
-  or reassign it. Pass the value as a parameter, or capture it into a local before
-  launching. This matters most when `Stop()` nils a field without waiting for the
-  goroutine to finish.
-
-  ```go
-  go func(ifaceName string) {   // good: passed in, cannot be nilled underneath
-      m.Start(ctx, ifaceName)
-  }(iface.Name())
-  ```
-
-- **Never wait on a channel while holding a lock the sender needs.** Copy what you
-  need out from under the lock, release it, then wait.
-
-  ```go
-  func (m *Manager) Stop() {
-      m.mu.Lock()
-      cancel, done := m.cancel, m.done
-      m.mu.Unlock()
-      if cancel != nil {
-          cancel()
-          <-done
-      }
-  }
-  ```
-
-- **`Stop`/`Close` must be idempotent** — guard on an already-stopped flag or a
-  nil cancel — and must release the state they guarded. Clear maps and caches;
-  a cancelled goroutine holding a live map still pins that memory. Note that a
-  nil map only panics on writes; reads and iteration behave like an empty map,
-  so where post-close use must be rejected, check the stopped flag explicitly.
-- **Publish coupled state only after every fallible step succeeds.** When several
-  fields form an invariant, build them into locals and assign them to the receiver
-  at the end. Assigning as you go leaves the object half-initialized when a later
-  step fails, so a readiness predicate reports ready while a coupled field is nil.
-  If an earlier step already had an external side effect — a created chain, an
-  opened handle, an inserted rule — roll it back before returning the error.
-- **Clean up what you own on constructor error paths.** Once a constructor has
-  started something, every later error path must undo it: cancel a goroutine and
-  wait for it to exit, stop a ticker, close a watcher. The object is never
-  returned, so its `Close` will never run.
-- **A failed `Start` must undo everything it started.** When a component brings up
-  several subsystems in sequence — connection manager, watchers, routing, DNS,
-  flow, persisted state — a failure partway through has to tear down the ones
-  already running, not just close the handle the error came from. Put the
-  already-started guard *before* that teardown path, so a rejected second `Start`
-  cannot dismantle the one that is running.
-
 ## Error handling
 
 Use single-assignment form when the error is only needed inside the `if`:
@@ -454,45 +248,6 @@ Log the errors you choose not to act on:
 - Close errors may be ignored for read-only operations; log them at debug for
   writes.
 
-**Do not log and return the same error.** It gets reported twice, from two places,
-and the second reader cannot tell whether it happened once or twice. Return it and
-let the caller decide. The exception is an API handler that has already written a
-response. Internal helpers return errors rather than logging and swallowing them.
-
-**Never return a typed nil as an error.** A nil `*MyError` stored in an `error`
-interface is not nil, so `err != nil` is true and callers take the failure path on
-success. Return the error only where it is actually set:
-
-```go
-if _, err := conn.Write(buf); err != nil {   // good
-    return err
-}
-return nil
-```
-
-**Accumulate with `multierror` when an operation should continue past individual
-failures** — teardown, cleanup, or setup where partial success is acceptable.
-`client/errors.FormatErrorOrNil` returns nil for an empty accumulator, so callers
-still see a plain nil on full success:
-
-```go
-func (m *Manager) Cleanup() error {
-    var merr *multierror.Error
-    for _, r := range m.resources {
-        if err := r.Close(); err != nil {
-            merr = multierror.Append(merr, fmt.Errorf("close %s: %w", r.Name, err))
-        }
-    }
-    return nberrors.FormatErrorOrNil(merr)
-}
-```
-
-| Scenario              | Approach              | Why                                       |
-| --------------------- | --------------------- | ----------------------------------------- |
-| Cleanup / teardown    | Accumulate            | Clean up as much as possible              |
-| Setup with rollback   | Abort on first error  | Partial state is invalid; undo what stuck |
-| Setup with partial OK | Accumulate            | Degraded operation is still useful        |
-
 ## Comments
 
 Comment the **why**, never the **what**. Default to no comment, and add one only
@@ -514,14 +269,10 @@ checksum = updateChecksum(checksum, oldPort, newPort)
 
 ### Length budget
 
-Neither of these is linter-enforced, so they are conventions the surrounding code
-mostly follows rather than hard limits:
-
-- **Around 90 characters per line.** Wrap the comment rather than running well past
-  it.
-- **Roughly 250 characters per comment**, about three wrapped lines. Doc comments
-  on exported identifiers may exceed it when the API genuinely needs the
-  explanation; inline comments inside a function body rarely should.
+- **90 characters per line.** Wrap the comment, do not run past it.
+- **250 characters per comment**, roughly three wrapped lines. Doc comments on
+  exported identifiers may exceed it when the API genuinely needs the
+  explanation; inline comments inside a function body may not.
 
 The budget is a smell detector, not a rule to game. Do not compress a needed
 explanation into cryptic shorthand to fit — if a block of code needs more than
@@ -578,19 +329,6 @@ up, and the 250-character budget does not apply to them.
   otherwise.
 - **Message guidance:** optional for `NoError`/`Error`; always give context for
   comparison, boolean, and collection assertions.
-- **Reproduce a bug before fixing it.** Write the test, watch it fail *for the
-  reason you expect* — a test that fails for an unrelated reason proves nothing —
-  then apply the fix and confirm it passes. Add the thin surrounding cases while
-  you are there.
-- **Use `t.Setenv`** rather than `os.Setenv` so the previous value is restored on
-  cleanup. To test the unset case, call `t.Setenv` first to register the restore,
-  then `os.Unsetenv`.
-- **Prefer `t.Cleanup` over `defer`** in any test with parallel subtests: the
-  parent function returns, running its `defer`s, while parallel subtests are
-  still suspended. Sequential subtests finish inside `t.Run`, so `defer` is safe
-  there, but `t.Cleanup` works in both cases.
-- **Explanatory comments in tests are welcome.** Describe the scenario being set
-  up; the comment budget below does not apply to them.
 
 ```go
 server, err := StartTestServer()
@@ -642,8 +380,7 @@ assert.Equal(t, expectedResult, result, "Result should match expected")
   than replacing it with your own summary: describe the change, link the issue,
   tick the checklist honestly (including "ran locally" and "single purpose"),
   and complete the documentation section. Do not tick a box you have not
-  verified, and do not delete rows that do not apply — the docs gate in CI reads
-  that section and fails when it is missing.
+  verified, and do not delete rows that do not apply.
 
 - **Keep the PR description short.** Under 1000 words on top of the template's
   own text, and usually far less — a few paragraphs. Reviewers read the diff;
@@ -702,12 +439,6 @@ assert.Equal(t, expectedResult, result, "Result should match expected")
   on their own. Propose that split to the user rather than opening one large PR
   and hoping.
 
-  Prefer GitHub's stacked pull requests for such a sequence, rather than
-  hand-managing base branches: open each PR against the branch below it instead of
-  `main`, so every PR's diff shows only its own change. Merging a layer retargets
-  the PRs above it, and branch protections and required checks on the base branch
-  still apply to each one.
-
 - **User-facing changes need a docs PR** in
   [netbirdio/docs](https://github.com/netbirdio/docs), linked from the PR
   description.

CONTRIBUTING.md

@@ -112,7 +112,6 @@ aligns with our security standards and design expectations.
         - [Test suite](#test-suite)
     - [Checklist before submitting a PR](#checklist-before-submitting-a-pr)
     - [When we close a PR](#when-we-close-a-pr)
-    - [Translations](#translations)
     - [Other project repositories](#other-project-repositories)
     - [Contributor License Agreement](#contributor-license-agreement)
 
@@ -613,17 +612,6 @@ A closed PR is not a rejected idea. Take it back to the
 [discussion](https://github.com/netbirdio/netbird/discussions), settle the
 approach, and reopen the work from there.
 
-## Translations
-
-Desktop UI translations are not contributed through pull requests. Translate on
-[Crowdin](https://crowdin.com/project/netbird) instead: no ticket needed, just
-join the project and pick your language. Crowdin syncs with this repository and
-opens the service PRs itself, so hand-edited locale files would conflict with
-the next sync. Style, terminology, and review guidance live in
-[client/ui/i18n/TRANSLATING.md](client/ui/i18n/TRANSLATING.md). To request a
-language the project does not offer yet, ask on the Crowdin project page or in
-a [discussion](https://github.com/netbirdio/netbird/discussions).
-
 ## Other project repositories
 
 NetBird project is composed of 3 main repositories:

client/android/client.go

@@ -15,7 +15,6 @@ import (
 
 	log "github.com/sirupsen/logrus"
 
-	nbAnonymize "github.com/netbirdio/netbird/client/anonymize"
 	"github.com/netbirdio/netbird/client/iface/device"
 	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/client/internal/debug"
@@ -33,13 +32,6 @@ import (
 	types "github.com/netbirdio/netbird/upload-server/types"
 )
 
-// AnonymizeLevelDefault and AnonymizeLevelStrict are the accepted
-// anonymizeLevel values for DebugBundle.
-const (
-	AnonymizeLevelDefault = nbAnonymize.LevelDefaultString
-	AnonymizeLevelStrict  = nbAnonymize.LevelStrictString
-)
-
 // ConnectionListener export internal Listener for mobile
 type ConnectionListener interface {
 	peer.Listener
@@ -286,10 +278,8 @@ func (c *Client) GetTunSettings() (*TunSettings, error) {
 }
 
 // DebugBundle generates a debug bundle, uploads it, and returns the upload key.
-// It works both with and without a running engine. anonymizeLevel is "default"
-// or "strict"; strict also anonymizes internal IP ranges, peer names, and
-// WireGuard public keys, and implies anonymize.
-func (c *Client) DebugBundle(platformFiles PlatformFiles, anonymize bool, anonymizeLevel string) (string, error) {
+// It works both with and without a running engine.
+func (c *Client) DebugBundle(platformFiles PlatformFiles, anonymize bool) (string, error) {
 	cfg, cacheDir, cc := c.stateSnapshot()
 
 	// If the engine hasn't been started, load config from disk
@@ -308,7 +298,6 @@ func (c *Client) DebugBundle(platformFiles PlatformFiles, anonymize bool, anonym
 		InternalConfig: cfg,
 		StatusRecorder: c.recorder,
 		TempDir:        cacheDir,
-		StatePath:      platformFiles.StateFilePath(),
 	}
 
 	if cc != nil {
@@ -332,7 +321,6 @@ func (c *Client) DebugBundle(platformFiles PlatformFiles, anonymize bool, anonym
 		deps,
 		debug.BundleConfig{
 			Anonymize:         anonymize,
-			AnonymizeLevel:    nbAnonymize.ParseLevel(anonymizeLevel),
 			IncludeSystemInfo: true,
 		},
 	)

client/anonymize/anonymize.go

@@ -2,7 +2,6 @@ package anonymize
 
 import (
 	"crypto/rand"
-	"encoding/base64"
 	"fmt"
 	"math/big"
 	"net"
@@ -16,88 +15,13 @@ import (
 
 const anonTLD = ".domain"
 
-// Level selects how much the anonymizer redacts. Levels are ordered: a higher
-// level redacts strictly more. On the wire (protos, flags) levels travel as
-// their string form.
-type Level int
-
-const (
-	// LevelDefault anonymizes public IP addresses, IPv6 ULA, domains, and MAC
-	// addresses. Internal IPv4 ranges (RFC 1918, CGNAT, link-local) are
-	// preserved so support can reason about the real topology.
-	LevelDefault Level = iota
-	// LevelStrict additionally anonymizes internal IP ranges, peer names, and
-	// WireGuard public keys.
-	LevelStrict
-)
-
-// LevelDefaultString and LevelStrictString are the wire forms of the levels,
-// for boundaries that pass levels as strings (flags, protos, mobile bindings).
-const (
-	LevelDefaultString = "default"
-	LevelStrictString  = "strict"
-)
-
-// ParseLevel maps s to a Level. Empty means LevelDefault; anything
-// unrecognized maps to LevelStrict so an unknown request never yields less
-// anonymization than intended.
-func ParseLevel(s string) Level {
-	switch strings.ToLower(s) {
-	case "", LevelDefaultString:
-		return LevelDefault
-	default:
-		return LevelStrict
-	}
-}
-
-// String returns the wire form of the level: "default" or "strict".
-func (l Level) String() string {
-	if l >= LevelStrict {
-		return LevelStrictString
-	}
-	return LevelDefaultString
-}
-
-// protectedDomains are NetBird-operated suffixes that stay recognizable in an
-// anonymized bundle. At LevelStrict the labels in front of them (the peer
-// name) are still replaced, except under netbird.io, which only hosts
-// NetBird infrastructure (api, signal, flow), never peer names.
-var protectedDomains = []string{"netbird.io", "netbird.selfhosted", "netbird.cloud", "netbird.stage"}
-
-const infraDomain = "netbird.io"
-
-var (
-	macColonRegex = regexp.MustCompile(`\b[0-9a-fA-F]{2}(?::[0-9a-fA-F]{2}){5}\b`)
-	macDashRegex  = regexp.MustCompile(`\b[0-9a-fA-F]{2}(?:-[0-9a-fA-F]{2}){5}\b`)
-	wgKeyRegex    = regexp.MustCompile(`\b[A-Za-z0-9+/]{43}=`)
-)
-
 type Anonymizer struct {
 	ipAnonymizer     map[netip.Addr]netip.Addr
 	domainAnonymizer map[string]string
-	// domainOrder caches the keys of domainAnonymizer sorted longest-first
-	// for AnonymizeString; it is rebuilt when the map gains entries.
-	domainOrder     []string
-	labelAnonymizer map[string]string
-	labelAnonymized map[string]struct{}
-	labelCounter    uint32
-	macAnonymizer   map[string]string
-	macCounter      uint32
-	wgKeyAnonymizer map[string]string
-	wgKeyAnonymized map[string]struct{}
-	currentAnonIPv4 netip.Addr
-	currentAnonIPv6 netip.Addr
-	startAnonIPv4   netip.Addr
-	startAnonIPv6   netip.Addr
-
-	// LevelStrict also anonymizes internal ranges (RFC 1918, CGNAT,
-	// link-local), replacing them from the dedicated internal pools below so
-	// a reader can still tell an internal address from a public one.
-	level                   Level
-	currentAnonInternalIPv4 netip.Addr
-	currentAnonInternalIPv6 netip.Addr
-	startAnonInternalIPv4   netip.Addr
-	startAnonInternalIPv6   netip.Addr
+	currentAnonIPv4  netip.Addr
+	currentAnonIPv6  netip.Addr
+	startAnonIPv4    netip.Addr
+	startAnonIPv6    netip.Addr
 
 	domainKeyRegex *regexp.Regexp
 }
@@ -108,50 +32,25 @@ func DefaultAddresses() (netip.Addr, netip.Addr) {
 	return netip.AddrFrom4([4]byte{198, 51, 100, 0}), netip.MustParseAddr("2001:db8:ffff::")
 }
 
-// InternalAddresses returns the pool starts used in strict mode for internal
-// ranges. Both are reserved ranges that cannot collide with real addressing:
-// 198.18.0.0 (RFC 2544 benchmarking), 2001:db8:1:: (RFC 3849 documentation).
-func InternalAddresses() (netip.Addr, netip.Addr) {
-	return netip.AddrFrom4([4]byte{198, 18, 0, 0}), netip.MustParseAddr("2001:db8:1::")
-}
-
 func NewAnonymizer(startIPv4, startIPv6 netip.Addr) *Anonymizer {
-	internalIPv4, internalIPv6 := InternalAddresses()
 	return &Anonymizer{
 		ipAnonymizer:     map[netip.Addr]netip.Addr{},
 		domainAnonymizer: map[string]string{},
-		labelAnonymizer:  map[string]string{},
-		labelAnonymized:  map[string]struct{}{},
-		macAnonymizer:    map[string]string{},
-		wgKeyAnonymizer:  map[string]string{},
-		wgKeyAnonymized:  map[string]struct{}{},
 		currentAnonIPv4:  startIPv4,
 		currentAnonIPv6:  startIPv6,
 		startAnonIPv4:    startIPv4,
 		startAnonIPv6:    startIPv6,
 
-		level:                   LevelDefault,
-		currentAnonInternalIPv4: internalIPv4,
-		currentAnonInternalIPv6: internalIPv6,
-		startAnonInternalIPv4:   internalIPv4,
-		startAnonInternalIPv6:   internalIPv6,
-
 		domainKeyRegex: regexp.MustCompile(`\bdomain=([^\s,:"]+)`),
 	}
 }
 
-// SetLevel selects the anonymization level. The zero value of a new
-// Anonymizer is LevelDefault.
-func (a *Anonymizer) SetLevel(level Level) {
-	a.level = level
-}
-
 func (a *Anonymizer) AnonymizeIP(ip netip.Addr) netip.Addr {
-	// Normalize 4-in-6 addresses so ::ffff:192.168.1.1 classifies and maps
-	// like 192.168.1.1.
-	ip = ip.Unmap()
-
 	if ip.IsLoopback() ||
+		ip.IsLinkLocalUnicast() ||
+		ip.IsLinkLocalMulticast() ||
+		ip.IsInterfaceLocalMulticast() ||
+		(ip.Is4() && ip.IsPrivate()) ||
 		ip.IsUnspecified() ||
 		ip.IsMulticast() ||
 		isWellKnown(ip) ||
@@ -160,100 +59,18 @@ func (a *Anonymizer) AnonymizeIP(ip netip.Addr) netip.Addr {
 		return ip
 	}
 
-	if isInternal(ip) && a.level < LevelStrict {
-		return ip
-	}
-
 	if _, ok := a.ipAnonymizer[ip]; !ok {
-		a.ipAnonymizer[ip] = a.nextAnonIP(ip)
+		if ip.Is4() {
+			a.ipAnonymizer[ip] = a.currentAnonIPv4
+			a.currentAnonIPv4 = a.currentAnonIPv4.Next()
+		} else {
+			a.ipAnonymizer[ip] = a.currentAnonIPv6
+			a.currentAnonIPv6 = a.currentAnonIPv6.Next()
+		}
 	}
 	return a.ipAnonymizer[ip]
 }
 
-func (a *Anonymizer) nextAnonIP(ip netip.Addr) netip.Addr {
-	// At the strict level, internal addresses (including IPv6 ULA, matched
-	// by IsPrivate) come from the internal pools so they remain recognizable
-	// as internal without disclosing the real values.
-	if a.level >= LevelStrict && (isInternal(ip) || ip.IsPrivate()) {
-		if ip.Is4() {
-			anon := a.currentAnonInternalIPv4
-			a.currentAnonInternalIPv4 = a.currentAnonInternalIPv4.Next()
-			return anon
-		}
-		anon := a.currentAnonInternalIPv6
-		a.currentAnonInternalIPv6 = a.currentAnonInternalIPv6.Next()
-		return anon
-	}
-
-	if ip.Is4() {
-		anon := a.currentAnonIPv4
-		a.currentAnonIPv4 = a.currentAnonIPv4.Next()
-		return anon
-	}
-	anon := a.currentAnonIPv6
-	a.currentAnonIPv6 = a.currentAnonIPv6.Next()
-	return anon
-}
-
-// AnonymizeMAC replaces a MAC address with a consistent placeholder from the
-// locally administered range starting at 02:00:00:00:00:01, at every
-// anonymization level. Broadcast, multicast, all-zero, and already assigned
-// placeholder addresses are preserved. The colon and dash spellings of the
-// same address share one placeholder; the output keeps the input's separator.
-func (a *Anonymizer) AnonymizeMAC(mac string) string {
-	hw, err := net.ParseMAC(mac)
-	if err != nil || len(hw) != 6 {
-		return mac
-	}
-
-	if isWellKnownMAC(hw) || a.isAnonymizedMAC(hw) {
-		return mac
-	}
-
-	key := hw.String()
-	anon, ok := a.macAnonymizer[key]
-	if !ok {
-		a.macCounter++
-		anon = fmt.Sprintf("02:00:00:%02x:%02x:%02x", byte(a.macCounter>>16), byte(a.macCounter>>8), byte(a.macCounter))
-		a.macAnonymizer[key] = anon
-	}
-
-	if strings.Contains(mac, "-") {
-		anon = strings.ReplaceAll(anon, ":", "-")
-	}
-	return anon
-}
-
-// isAnonymizedMAC reports whether hw is a placeholder this anonymizer already
-// handed out, so a second pass over anonymized output leaves it unchanged.
-func (a *Anonymizer) isAnonymizedMAC(hw net.HardwareAddr) bool {
-	if hw[0] != 0x02 || hw[1] != 0 || hw[2] != 0 {
-		return false
-	}
-	value := uint32(hw[3])<<16 | uint32(hw[4])<<8 | uint32(hw[5])
-	return value <= a.macCounter
-}
-
-// AnonymizeWGKey replaces a WireGuard public key with a consistent random
-// placeholder of the same shape. Keys are only anonymized at LevelStrict;
-// placeholders already handed out pass through unchanged.
-func (a *Anonymizer) AnonymizeWGKey(key string) string {
-	if a.level < LevelStrict || !looksLikeWGKey(key) {
-		return key
-	}
-	if _, ok := a.wgKeyAnonymized[key]; ok {
-		return key
-	}
-
-	anon, ok := a.wgKeyAnonymizer[key]
-	if !ok {
-		anon = generateAnonymousKey()
-		a.wgKeyAnonymizer[key] = anon
-		a.wgKeyAnonymized[anon] = struct{}{}
-	}
-	return anon
-}
-
 func (a *Anonymizer) AnonymizeUDPAddr(addr net.UDPAddr) net.UDPAddr {
 	// Convert IP to netip.Addr
 	ip, ok := netip.AddrFromSlice(addr.IP)
@@ -272,12 +89,12 @@ func (a *Anonymizer) AnonymizeUDPAddr(addr net.UDPAddr) net.UDPAddr {
 
 // isInAnonymizedRange checks if an IP is within the range of already assigned anonymized IPs
 func (a *Anonymizer) isInAnonymizedRange(ip netip.Addr) bool {
-	if ip.Is4() {
-		return inPoolRange(ip, a.startAnonIPv4, a.currentAnonIPv4) ||
-			inPoolRange(ip, a.startAnonInternalIPv4, a.currentAnonInternalIPv4)
+	if ip.Is4() && ip.Compare(a.startAnonIPv4) >= 0 && ip.Compare(a.currentAnonIPv4) <= 0 {
+		return true
+	} else if !ip.Is4() && ip.Compare(a.startAnonIPv6) >= 0 && ip.Compare(a.currentAnonIPv6) <= 0 {
+		return true
 	}
-	return inPoolRange(ip, a.startAnonIPv6, a.currentAnonIPv6) ||
-		inPoolRange(ip, a.startAnonInternalIPv6, a.currentAnonInternalIPv6)
+	return false
 }
 
 func (a *Anonymizer) AnonymizeIPString(ip string) string {
@@ -301,17 +118,14 @@ func (a *Anonymizer) AnonymizeDomain(domain string) string {
 		baseDomain = domain[:len(domain)-1]
 	}
 
-	if strings.HasSuffix(baseDomain, anonTLD) {
+	if strings.HasSuffix(baseDomain, "netbird.io") ||
+		strings.HasSuffix(baseDomain, "netbird.selfhosted") ||
+		strings.HasSuffix(baseDomain, "netbird.cloud") ||
+		strings.HasSuffix(baseDomain, "netbird.stage") ||
+		strings.HasSuffix(baseDomain, anonTLD) {
 		return domain
 	}
 
-	if suffix := protectedSuffix(baseDomain); suffix != "" {
-		if a.level < LevelStrict || baseDomain == suffix || suffix == infraDomain {
-			return domain
-		}
-		return withTrailingDot(a.anonymizePeerName(baseDomain, suffix), hasDot)
-	}
-
 	parts := strings.Split(baseDomain, ".")
 	if len(parts) < 2 {
 		return domain
@@ -327,53 +141,12 @@ func (a *Anonymizer) AnonymizeDomain(domain string) string {
 	}
 
 	result := strings.Replace(baseDomain, baseForLookup, anonymized, 1)
-	if a.level >= LevelStrict && len(parts) > 2 {
-		prefix := strings.TrimSuffix(baseDomain, "."+baseForLookup)
-		result = a.anonymizeLabels(prefix, "host") + "." + anonymized
-		// The full mapping feeds AnonymizeString so seeded FQDNs are caught
-		// in log lines as a whole, labels included.
-		a.domainAnonymizer[baseDomain] = result
-	}
-	return withTrailingDot(result, hasDot)
-}
-
-// anonymizePeerName replaces the labels in front of a protected suffix with
-// numbered peer placeholders, keeping the suffix, and records the full
-// mapping for string replacement in logs. The numbering keeps a peer
-// recognizable across the whole bundle without disclosing its name.
-func (a *Anonymizer) anonymizePeerName(baseDomain, suffix string) string {
-	prefix := strings.TrimSuffix(baseDomain, "."+suffix)
-	result := a.anonymizeLabels(prefix, "peer") + "." + suffix
-	if result != baseDomain {
-		a.domainAnonymizer[baseDomain] = result
+	if hasDot {
+		result += "."
 	}
 	return result
 }
 
-// anonymizeLabels replaces each dot-separated label with a consistent
-// numbered placeholder ("<placeholder>-<n>"). Wildcard labels and
-// placeholders already handed out pass through unchanged.
-func (a *Anonymizer) anonymizeLabels(prefix, placeholder string) string {
-	labels := strings.Split(prefix, ".")
-	for i, label := range labels {
-		if label == "*" {
-			continue
-		}
-		if _, ok := a.labelAnonymized[label]; ok {
-			continue
-		}
-		anon, ok := a.labelAnonymizer[label]
-		if !ok {
-			a.labelCounter++
-			anon = fmt.Sprintf("%s-%d", placeholder, a.labelCounter)
-			a.labelAnonymizer[label] = anon
-			a.labelAnonymized[anon] = struct{}{}
-		}
-		labels[i] = anon
-	}
-	return strings.Join(labels, ".")
-}
-
 func (a *Anonymizer) AnonymizeURI(uri string) string {
 	u, err := url.Parse(uri)
 	if err != nil {
@@ -408,70 +181,16 @@ func (a *Anonymizer) AnonymizeString(str string) string {
 	str = ipv4Regex.ReplaceAllStringFunc(str, a.AnonymizeIPString)
 	str = ipv6Regex.ReplaceAllStringFunc(str, a.AnonymizeIPString)
 
-	for _, domain := range a.sortedDomains() {
-		str = strings.ReplaceAll(str, domain, a.domainAnonymizer[domain])
+	for domain, anonDomain := range a.domainAnonymizer {
+		str = strings.ReplaceAll(str, domain, anonDomain)
 	}
 
 	str = a.AnonymizeSchemeURI(str)
 	str = a.AnonymizeDNSLogLine(str)
 
-	// MAC handling runs after the IP passes so preserved IPv6 addresses are
-	// already out of the way; the separator guard skips matches embedded in a
-	// longer colon- or dash-separated sequence (such as an IPv6 tail).
-	str = a.anonymizeMACsInString(str, macColonRegex, ':')
-	str = a.anonymizeMACsInString(str, macDashRegex, '-')
-
-	if a.level >= LevelStrict {
-		str = wgKeyRegex.ReplaceAllStringFunc(str, a.AnonymizeWGKey)
-	}
-
 	return str
 }
 
-// sortedDomains returns the domain mappings longest-first, so a full-FQDN
-// mapping (strict level) is applied before the base-domain mapping it
-// contains. The order is rebuilt only when domainAnonymizer has grown.
-func (a *Anonymizer) sortedDomains() []string {
-	if len(a.domainOrder) == len(a.domainAnonymizer) {
-		return a.domainOrder
-	}
-
-	a.domainOrder = a.domainOrder[:0]
-	for domain := range a.domainAnonymizer {
-		a.domainOrder = append(a.domainOrder, domain)
-	}
-	slices.SortFunc(a.domainOrder, func(x, y string) int {
-		if d := len(y) - len(x); d != 0 {
-			return d
-		}
-		return strings.Compare(x, y)
-	})
-	return a.domainOrder
-}
-
-// anonymizeMACsInString replaces MAC addresses matched by re, skipping
-// matches that directly adjoin another sep so a six-group run inside a longer
-// separated sequence is left alone.
-func (a *Anonymizer) anonymizeMACsInString(str string, re *regexp.Regexp, sep byte) string {
-	matches := re.FindAllStringIndex(str, -1)
-	if len(matches) == 0 {
-		return str
-	}
-
-	var b strings.Builder
-	last := 0
-	for _, m := range matches {
-		if (m[0] > 0 && str[m[0]-1] == sep) || (m[1] < len(str) && str[m[1]] == sep) {
-			continue
-		}
-		b.WriteString(str[last:m[0]])
-		b.WriteString(a.AnonymizeMAC(str[m[0]:m[1]]))
-		last = m[1]
-	}
-	b.WriteString(str[last:])
-	return b.String()
-}
-
 // AnonymizeSchemeURI finds and anonymizes URIs with ws, wss, rel, rels, stun, stuns, turn, and turns schemes.
 func (a *Anonymizer) AnonymizeSchemeURI(text string) string {
 	re := regexp.MustCompile(`(?i)\b(wss?://|rels?://|stuns?:|turns?:|https?://)\S+\b`)
@@ -520,79 +239,10 @@ func isWellKnown(addr netip.Addr) bool {
 		"128.0.0.0", "8000::", // 2nd split subnet for default routes
 	}
 
-	return slices.Contains(wellKnown, addr.String())
-}
-
-// isInternal reports whether ip identifies a host only within the local
-// network: IPv4 private (RFC 1918), CGNAT (RFC 6598), and link-local (v4 and
-// v6). These are preserved at the default level so support can reason about
-// the real topology, and replaced from the internal pools at the strict
-// level. IPv6 ULA is deliberately not internal: its random global ID uniquely
-// fingerprints the network, so it is anonymized at every level.
-func isInternal(ip netip.Addr) bool {
-	return (ip.Is4() && ip.IsPrivate()) ||
-		ip.IsLinkLocalUnicast() ||
-		isCGNAT(ip)
-}
-
-func inPoolRange(ip, start, current netip.Addr) bool {
-	return ip.Compare(start) >= 0 && ip.Compare(current) <= 0
-}
-
-// isWellKnownMAC reports whether hw carries no stable host identity: all-zero
-// or a group address (broadcast and multicast).
-func isWellKnownMAC(hw net.HardwareAddr) bool {
-	if hw[0]&1 == 1 {
+	if slices.Contains(wellKnown, addr.String()) {
 		return true
 	}
-	for _, b := range hw {
-		if b != 0 {
-			return false
-		}
-	}
-	return true
-}
 
-// looksLikeWGKey reports whether s has the shape of a WireGuard key:
-// 44 base64 characters decoding to 32 bytes.
-func looksLikeWGKey(s string) bool {
-	if len(s) != 44 || s[43] != '=' {
-		return false
-	}
-	decoded, err := base64.StdEncoding.DecodeString(s)
-	return err == nil && len(decoded) == 32
-}
-
-func generateAnonymousKey() string {
-	buf := make([]byte, 32)
-	if _, err := rand.Read(buf); err != nil {
-		return strings.Repeat("A", 43) + "="
-	}
-	return base64.StdEncoding.EncodeToString(buf)
-}
-
-// protectedSuffix returns the protected NetBird suffix baseDomain ends with,
-// or empty. The match is label-anchored so an unrelated domain that merely
-// ends in the same characters is not preserved.
-func protectedSuffix(baseDomain string) string {
-	for _, d := range protectedDomains {
-		if baseDomain == d || strings.HasSuffix(baseDomain, "."+d) {
-			return d
-		}
-	}
-	return ""
-}
-
-func withTrailingDot(domain string, hasDot bool) string {
-	if hasDot {
-		return domain + "."
-	}
-	return domain
-}
-
-// isCGNAT reports whether addr is in 100.64.0.0/10 (RFC 6598), the range
-// NetBird assigns overlay peer addresses from.
-func isCGNAT(addr netip.Addr) bool {
 	cgnatRangeStart := netip.AddrFrom4([4]byte{100, 64, 0, 0})
 	cgnatRange := netip.PrefixFrom(cgnatRangeStart, 10)
 

client/anonymize/anonymize_test.go

@@ -1,11 +1,8 @@
 package anonymize_test
 
 import (
-	"bytes"
-	"encoding/base64"
 	"net/netip"
 	"regexp"
-	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -47,301 +44,6 @@ func TestAnonymizeIP(t *testing.T) {
 	}
 }
 
-func TestParseLevel(t *testing.T) {
-	tests := []struct {
-		input  string
-		expect anonymize.Level
-	}{
-		{"", anonymize.LevelDefault},
-		{"default", anonymize.LevelDefault},
-		{"DEFAULT", anonymize.LevelDefault},
-		{"strict", anonymize.LevelStrict},
-		{"STRICT", anonymize.LevelStrict},
-		// Unknown values must never yield less anonymization than requested.
-		{"garbage", anonymize.LevelStrict},
-	}
-
-	for _, tc := range tests {
-		t.Run("input="+tc.input, func(t *testing.T) {
-			assert.Equal(t, tc.expect, anonymize.ParseLevel(tc.input), "parsed level should match")
-		})
-	}
-}
-
-func TestAnonymizeIP_DefaultLevelInternalRanges(t *testing.T) {
-	anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-
-	tests := []struct {
-		name   string
-		ip     string
-		expect string
-	}{
-		{"RFC1918 10/8", "10.1.2.3", "10.1.2.3"},
-		{"RFC1918 172.16/12", "172.16.5.5", "172.16.5.5"},
-		{"RFC1918 192.168/16", "192.168.1.1", "192.168.1.1"},
-		{"CGNAT", "100.64.0.5", "100.64.0.5"},
-		{"IPv4 link-local", "169.254.1.1", "169.254.1.1"},
-		{"IPv6 link-local", "fe80::1", "fe80::1"},
-		// ULA is anonymized even at the default level: its random global ID
-		// uniquely fingerprints the network, unlike shared RFC 1918 space.
-		{"IPv6 ULA", "fd12:3456:789a::1", "2001:db8:ffff::"},
-		// 4-in-6 addresses classify like their unmapped IPv4 form.
-		{"4-in-6 RFC1918", "::ffff:192.168.1.1", "192.168.1.1"},
-		{"4-in-6 CGNAT", "::ffff:100.64.0.5", "100.64.0.5"},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			result := anonymizer.AnonymizeIP(netip.MustParseAddr(tc.ip))
-			assert.Equal(t, tc.expect, result.String(), "default level should preserve internal ranges except ULA")
-		})
-	}
-}
-
-func TestAnonymizeIP_StrictLevel(t *testing.T) {
-	anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-	anonymizer.SetLevel(anonymize.LevelStrict)
-
-	// Order matters: internal pool addresses are assigned sequentially.
-	tests := []struct {
-		name   string
-		ip     string
-		expect string
-	}{
-		{"RFC1918 192.168/16", "192.168.1.1", "198.18.0.0"},
-		{"Second RFC1918", "192.168.1.2", "198.18.0.1"},
-		{"Repeated RFC1918", "192.168.1.1", "198.18.0.0"},
-		{"RFC1918 10/8", "10.1.2.3", "198.18.0.2"},
-		{"RFC1918 172.16/12", "172.16.5.5", "198.18.0.3"},
-		{"CGNAT", "100.64.0.5", "198.18.0.4"},
-		{"IPv4 link-local", "169.254.1.1", "198.18.0.5"},
-		{"Public IPv4 uses public pool", "1.2.3.4", "198.51.100.0"},
-		{"IPv6 link-local", "fe80::1", "2001:db8:1::"},
-		{"IPv6 ULA", "fd12:3456:789a::1", "2001:db8:1::1"},
-		{"Public IPv6 uses public pool", "2607:f8b0:4005:805::200e", "2001:db8:ffff::"},
-		{"Loopback IPv4", "127.0.0.1", "127.0.0.1"},
-		{"Loopback IPv6", "::1", "::1"},
-		{"Unspecified", "0.0.0.0", "0.0.0.0"},
-		{"Multicast", "224.0.0.251", "224.0.0.251"},
-		{"Well known resolver", "8.8.8.8", "8.8.8.8"},
-		{"Well known split marker", "128.0.0.0", "128.0.0.0"},
-		{"In internal pool range", "198.18.0.3", "198.18.0.3"},
-		{"In public pool range", "198.51.100.0", "198.51.100.0"},
-		{"4-in-6 repeated RFC1918", "::ffff:192.168.1.1", "198.18.0.0"},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			result := anonymizer.AnonymizeIP(netip.MustParseAddr(tc.ip))
-			assert.Equal(t, tc.expect, result.String(), "strict level should replace internal ranges from the internal pools")
-		})
-	}
-}
-
-func TestAnonymizeString_StrictInternalIPs(t *testing.T) {
-	anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-	anonymizer.SetLevel(anonymize.LevelStrict)
-
-	input := "route 10.20.30.0/24 via 192.168.1.1 dev eth0 src 100.64.0.7"
-	firstPass := anonymizer.AnonymizeString(input)
-	secondPass := anonymizer.AnonymizeString(firstPass)
-
-	assert.NotContains(t, firstPass, "10.20.30.0", "private network address should be anonymized")
-	assert.NotContains(t, firstPass, "192.168.1.1", "private gateway should be anonymized")
-	assert.NotContains(t, firstPass, "100.64.0.7", "CGNAT address should be anonymized")
-	assert.Contains(t, firstPass, "/24", "prefix length should be preserved")
-	assert.Equal(t, firstPass, secondPass, "second pass should not further anonymize the string")
-}
-
-func TestAnonymizeMAC(t *testing.T) {
-	anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-
-	first := anonymizer.AnonymizeMAC("aa:bb:cc:dd:ee:0f")
-	assert.Equal(t, "02:00:00:00:00:01", first, "first MAC should get the first placeholder")
-	assert.Equal(t, first, anonymizer.AnonymizeMAC("aa:bb:cc:dd:ee:0f"), "repeated MAC should map to the same placeholder")
-	assert.Equal(t, first, anonymizer.AnonymizeMAC("AA:BB:CC:DD:EE:0F"), "case should not affect the mapping")
-	assert.Equal(t, "02-00-00-00-00-01", anonymizer.AnonymizeMAC("AA-BB-CC-DD-EE-0F"), "dash form should keep its separator but share the mapping")
-
-	second := anonymizer.AnonymizeMAC("10:22:33:44:55:66")
-	assert.Equal(t, "02:00:00:00:00:02", second, "second distinct MAC should get the next placeholder")
-
-	tests := []struct {
-		name string
-		mac  string
-	}{
-		{"Broadcast", "ff:ff:ff:ff:ff:ff"},
-		{"IPv4 multicast", "01:00:5e:00:00:fb"},
-		{"IPv6 multicast", "33:33:00:00:00:01"},
-		{"All zero", "00:00:00:00:00:00"},
-		{"Assigned placeholder", "02:00:00:00:00:01"},
-		{"Invalid", "not-a-mac"},
-	}
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			assert.Equal(t, tc.mac, anonymizer.AnonymizeMAC(tc.mac), "should be preserved")
-		})
-	}
-}
-
-func TestAnonymizeString_MACAddresses(t *testing.T) {
-	anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-
-	tests := []struct {
-		name   string
-		input  string
-		expect string
-	}{
-		{
-			name:   "nftables ether rule",
-			input:  "ether saddr aa:bb:cc:dd:ee:ff drop",
-			expect: "ether saddr 02:00:00:00:00:01 drop",
-		},
-		{
-			name:   "Windows dash form",
-			input:  "Physical Address : AA-BB-CC-DD-EE-FF",
-			expect: "Physical Address : 02-00-00-00-00-01",
-		},
-		{
-			name:   "IPv6 address tail is not treated as MAC",
-			input:  "addr fe80:0:11:22:33:44:55:66 scope link",
-			expect: "addr fe80:0:11:22:33:44:55:66 scope link",
-		},
-		{
-			name:   "broadcast MAC preserved",
-			input:  "dst ff:ff:ff:ff:ff:ff type ARP",
-			expect: "dst ff:ff:ff:ff:ff:ff type ARP",
-		},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			result := anonymizer.AnonymizeString(tc.input)
-			assert.Equal(t, tc.expect, result, "MAC addresses should be anonymized at every level")
-			assert.Equal(t, result, anonymizer.AnonymizeString(result), "second pass should not change the result")
-		})
-	}
-}
-
-func TestAnonymizeWGKey(t *testing.T) {
-	key := base64.StdEncoding.EncodeToString(bytes.Repeat([]byte{0x42}, 32))
-
-	t.Run("default level preserves keys", func(t *testing.T) {
-		anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-		assert.Equal(t, key, anonymizer.AnonymizeWGKey(key), "default level should not touch WireGuard keys")
-	})
-
-	t.Run("strict level replaces keys", func(t *testing.T) {
-		anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-		anonymizer.SetLevel(anonymize.LevelStrict)
-
-		anon := anonymizer.AnonymizeWGKey(key)
-		assert.NotEqual(t, key, anon, "strict level should replace the key")
-		assert.Regexp(t, `^[A-Za-z0-9+/]{43}=$`, anon, "placeholder should keep the WireGuard key shape")
-		assert.Equal(t, anon, anonymizer.AnonymizeWGKey(key), "repeated key should map to the same placeholder")
-		assert.Equal(t, anon, anonymizer.AnonymizeWGKey(anon), "an assigned placeholder should pass through unchanged")
-
-		assert.Equal(t, "not-a-key", anonymizer.AnonymizeWGKey("not-a-key"), "non-key values should be preserved")
-	})
-}
-
-func TestAnonymizeString_WGKeys(t *testing.T) {
-	key := base64.StdEncoding.EncodeToString(bytes.Repeat([]byte{0x42}, 32))
-	input := "peer " + key + " handshake completed"
-
-	t.Run("default level preserves keys", func(t *testing.T) {
-		anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-		assert.Equal(t, input, anonymizer.AnonymizeString(input), "default level should not touch WireGuard keys in strings")
-	})
-
-	t.Run("strict level replaces keys", func(t *testing.T) {
-		anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-		anonymizer.SetLevel(anonymize.LevelStrict)
-
-		firstPass := anonymizer.AnonymizeString(input)
-		assert.NotContains(t, firstPass, key, "the key should not survive strict anonymization")
-		assert.Equal(t, anonymizer.AnonymizeWGKey(key), extractKey(t, firstPass), "string replacement should be consistent with AnonymizeWGKey")
-		assert.Equal(t, firstPass, anonymizer.AnonymizeString(firstPass), "second pass should not change the result")
-	})
-}
-
-func extractKey(t *testing.T, logLine string) string {
-	t.Helper()
-	fields := strings.Fields(logLine)
-	require.Len(t, fields, 4, "log line should keep its structure")
-	return fields[1]
-}
-
-func TestAnonymizeDomain_StrictLevel(t *testing.T) {
-	anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-	anonymizer.SetLevel(anonymize.LevelStrict)
-
-	t.Run("netbird peer name", func(t *testing.T) {
-		result := anonymizer.AnonymizeDomain("my-laptop.netbird.cloud")
-		assert.Regexp(t, `^peer-\d+\.netbird\.cloud$`, result, "peer name should be anonymized, suffix kept")
-		assert.NotContains(t, result, "my-laptop", "the peer name should not survive")
-		assert.Equal(t, result, anonymizer.AnonymizeDomain("my-laptop.netbird.cloud"), "repeated domain should map consistently")
-		assert.Equal(t, result, anonymizer.AnonymizeDomain(result), "an anonymized domain should pass through unchanged")
-	})
-
-	t.Run("bare netbird domain", func(t *testing.T) {
-		assert.Equal(t, "netbird.cloud", anonymizer.AnonymizeDomain("netbird.cloud"), "the bare protected suffix should be preserved")
-	})
-
-	t.Run("netbird infrastructure preserved", func(t *testing.T) {
-		assert.Equal(t, "api.netbird.io", anonymizer.AnonymizeDomain("api.netbird.io"),
-			"netbird.io hosts infrastructure, not peer names, and should stay readable")
-	})
-
-	t.Run("leading labels of other domains", func(t *testing.T) {
-		result := anonymizer.AnonymizeDomain("host1.corp.example.com")
-		assert.Regexp(t, `^host-\d+\.host-\d+\.anon-[a-zA-Z0-9]+\.domain$`, result, "every label should be anonymized")
-		for _, label := range []string{"host1", "corp", "example"} {
-			assert.NotContains(t, result, label, "no original label should survive")
-		}
-		assert.Equal(t, result, anonymizer.AnonymizeDomain("host1.corp.example.com"), "repeated domain should map consistently")
-	})
-
-	t.Run("same label maps consistently across domains", func(t *testing.T) {
-		first := anonymizer.AnonymizeDomain("shared.one.com")
-		second := anonymizer.AnonymizeDomain("shared.two.com")
-		assert.Equal(t, strings.Split(first, ".")[0], strings.Split(second, ".")[0], "the shared host label should get one placeholder")
-	})
-
-	t.Run("wildcard label preserved", func(t *testing.T) {
-		result := anonymizer.AnonymizeDomain("*.example.com")
-		assert.Regexp(t, `^\*\.anon-[a-zA-Z0-9]+\.domain$`, result, "the wildcard label should stay a wildcard")
-	})
-}
-
-func TestAnonymizeDomain_DefaultLevelKeepsPeerNames(t *testing.T) {
-	anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-
-	assert.Equal(t, "my-laptop.netbird.cloud", anonymizer.AnonymizeDomain("my-laptop.netbird.cloud"),
-		"default level should preserve netbird FQDNs including the peer name")
-	assert.Regexp(t, `^sub\.anon-[a-zA-Z0-9]+\.domain$`, anonymizer.AnonymizeDomain("sub.example.com"),
-		"default level should keep subdomain labels")
-}
-
-func TestAnonymizeString_StrictPeerNames(t *testing.T) {
-	anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-	anonymizer.SetLevel(anonymize.LevelStrict)
-
-	// Seed like the bundle generator does from the status: base first, then
-	// the full FQDN, so replacement must prefer the longer mapping.
-	anonBase := anonymizer.AnonymizeDomain("example.com")
-	anonPeer := anonymizer.AnonymizeDomain("peer1.netbird.cloud")
-	anonHost := anonymizer.AnonymizeDomain("host1.example.com")
-
-	logLine := "connected to peer1.netbird.cloud via host1.example.com endpoint"
-	firstPass := anonymizer.AnonymizeString(logLine)
-	assert.NotContains(t, firstPass, "peer1", "the peer name should not survive in logs")
-	assert.NotContains(t, firstPass, "host1", "the host label should not survive in logs")
-	assert.Contains(t, firstPass, anonPeer, "the seeded peer mapping should be applied")
-	assert.Contains(t, firstPass, anonHost, "the seeded host mapping should be applied, not just the base mapping")
-	assert.NotContains(t, firstPass, "host1."+anonBase, "the base mapping must not preempt the longer FQDN mapping")
-	assert.Equal(t, firstPass, anonymizer.AnonymizeString(firstPass), "second pass should not change the result")
-}
-
 func TestAnonymizeDNSLogLine(t *testing.T) {
 	anonymizer := anonymize.NewAnonymizer(netip.Addr{}, netip.Addr{})
 	tests := []struct {

client/cmd/debug.go

@@ -27,8 +27,8 @@ import (
 const errCloseConnection = "Failed to close connection: %v"
 
 var (
-	logFileCount             uint32
-	systemInfoFlag           bool
+	logFileCount        uint32
+	systemInfoFlag      bool
 	uploadBundleFlag         bool
 	uploadBundleURLFlag      string
 	uploadBundleInsecureFlag bool
@@ -156,11 +156,6 @@ func debugConfigDump(cmd *cobra.Command, _ []string) error {
 // request. Returns an error if the RPC fails or if the daemon reports
 // an upload failure reason.
 func debugBundle(cmd *cobra.Command, _ []string) error {
-	anonymizeEnabled, anonymizeLevel, err := effectiveAnonymize()
-	if err != nil {
-		return err
-	}
-
 	conn, err := getClient(cmd)
 	if err != nil {
 		return err
@@ -173,11 +168,10 @@ func debugBundle(cmd *cobra.Command, _ []string) error {
 
 	client := proto.NewDaemonServiceClient(conn)
 	request := &proto.DebugBundleRequest{
-		Anonymize:      anonymizeEnabled,
-		AnonymizeLevel: anonymizeLevel.String(),
-		SystemInfo:     systemInfoFlag,
-		LogFileCount:   logFileCount,
-		CliVersion:     version.NetbirdVersion(),
+		Anonymize:    anonymizeFlag,
+		SystemInfo:   systemInfoFlag,
+		LogFileCount: logFileCount,
+		CliVersion:   version.NetbirdVersion(),
 	}
 	if uploadBundleFlag {
 		request.UploadURL = uploadBundleURLFlag
@@ -235,11 +229,6 @@ func runForDuration(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("invalid duration format: %v", err)
 	}
 
-	anonymizeEnabled, anonymizeLevel, err := effectiveAnonymize()
-	if err != nil {
-		return err
-	}
-
 	conn, err := getClient(cmd)
 	if err != nil {
 		return err
@@ -379,11 +368,10 @@ func runForDuration(cmd *cobra.Command, args []string) error {
 	cmd.Println("Creating debug bundle...")
 
 	request := &proto.DebugBundleRequest{
-		Anonymize:      anonymizeEnabled,
-		AnonymizeLevel: anonymizeLevel.String(),
-		SystemInfo:     systemInfoFlag,
-		LogFileCount:   logFileCount,
-		CliVersion:     version.NetbirdVersion(),
+		Anonymize:    anonymizeFlag,
+		SystemInfo:   systemInfoFlag,
+		LogFileCount: logFileCount,
+		CliVersion:   version.NetbirdVersion(),
 	}
 	if uploadBundleFlag {
 		request.UploadURL = uploadBundleURLFlag

client/cmd/root.go

@@ -21,7 +21,6 @@ import (
 	"github.com/spf13/pflag"
 	"google.golang.org/grpc"
 
-	"github.com/netbirdio/netbird/client/anonymize"
 	daddr "github.com/netbirdio/netbird/client/internal/daemonaddr"
 	"github.com/netbirdio/netbird/client/internal/profilemanager"
 )
@@ -70,7 +69,6 @@ var (
 	autoConnectDisabled     bool
 	extraIFaceBlackList     []string
 	anonymizeFlag           bool
-	anonymizeLevelFlag      string
 	dnsRouteInterval        time.Duration
 	// lazyConnEnabled is the parse target for the deprecated --enable-lazy-connection
 	// flag. The flag is inert; the value is no longer read (use NB_LAZY_CONN instead).
@@ -158,8 +156,7 @@ func init() {
 	rootCmd.MarkFlagsMutuallyExclusive("setup-key", "setup-key-file")
 	rootCmd.PersistentFlags().StringVar(&preSharedKey, preSharedKeyFlag, "", "Sets WireGuard PreSharedKey property. If set, then only peers that have the same key can communicate.")
 	rootCmd.PersistentFlags().StringVarP(&hostName, "hostname", "n", "", "Sets a custom hostname for the device")
-	rootCmd.PersistentFlags().BoolVarP(&anonymizeFlag, "anonymize", "A", false, "anonymize public IP addresses, MAC addresses, and non-netbird.io domains in logs and status output; private, CGNAT, and link-local IP ranges are kept (see --anonymize-level strict)")
-	rootCmd.PersistentFlags().StringVar(&anonymizeLevelFlag, "anonymize-level", "", "anonymization level: \"default\" or \"strict\"; strict also anonymizes private, CGNAT, and link-local IP ranges, peer names, and WireGuard public keys. Setting this flag implies --anonymize")
+	rootCmd.PersistentFlags().BoolVarP(&anonymizeFlag, "anonymize", "A", false, "anonymize IP addresses and non-netbird.io domains in logs and status output")
 	rootCmd.PersistentFlags().StringVarP(&configPath, "config", "c", profilemanager.DefaultConfigPath, "Overrides the default profile file location")
 
 	rootCmd.AddCommand(upCmd)
@@ -296,19 +293,6 @@ var CLIBackOffSettings = &backoff.ExponentialBackOff{
 	Clock:               backoff.SystemClock,
 }
 
-// effectiveAnonymize resolves the --anonymize and --anonymize-level flags:
-// setting a level implies anonymization, and an invalid level is rejected.
-func effectiveAnonymize() (bool, anonymize.Level, error) {
-	if anonymizeLevelFlag == "" {
-		return anonymizeFlag, anonymize.LevelDefault, nil
-	}
-	level := anonymize.ParseLevel(anonymizeLevelFlag)
-	if !strings.EqualFold(anonymizeLevelFlag, level.String()) {
-		return false, anonymize.LevelDefault, fmt.Errorf("invalid anonymize level %q: use %q or %q", anonymizeLevelFlag, anonymize.LevelDefault.String(), anonymize.LevelStrict.String())
-	}
-	return true, level, nil
-}
-
 func getSetupKey() (string, error) {
 	if setupKeyPath != "" && setupKey == "" {
 		return getSetupKeyFromFile(setupKeyPath)

client/cmd/status.go

@@ -121,14 +121,8 @@ func statusFunc(cmd *cobra.Command, args []string) error {
 		sessionExpiresAt = ts.AsTime().UTC()
 	}
 
-	anonymizeEnabled, anonymizeLevel, err := effectiveAnonymize()
-	if err != nil {
-		return err
-	}
-
 	var outputInformationHolder = nbstatus.ConvertToStatusOutputOverview(resp.GetFullStatus(), nbstatus.ConvertOptions{
-		Anonymize:            anonymizeEnabled,
-		AnonymizeLevel:       anonymizeLevel,
+		Anonymize:            anonymizeFlag,
 		DaemonVersion:        resp.GetDaemonVersion(),
 		DaemonStatus:         nbstatus.ParseDaemonStatus(status),
 		StatusFilter:         statusFilter,

client/firewall/firewalld/firewalld.go

@@ -2,8 +2,8 @@
 // its wg interface into firewalld's "trusted" zone. This is required because
 // firewalld's nftables chains are created with NFT_CHAIN_OWNER on recent
 // versions, which returns EPERM to any other process that tries to insert
-// rules into them. Trusting the interface makes firewalld itself add the
-// accept rules to its own chains instead.
+// rules into them. The workaround mirrors what Tailscale does: let firewalld
+// itself add the accept rules to its own chains by trusting the interface.
 package firewalld
 
 // TrustedZone is the firewalld zone name used for interfaces whose traffic

client/iface/bind/ice_bind.go

@@ -22,16 +22,6 @@ import (
 	nbnet "github.com/netbirdio/netbird/client/net"
 )
 
-const (
-	// wgMsgTypeHandshakeInitiation is the lowest WireGuard message type.
-	wgMsgTypeHandshakeInitiation uint32 = 1
-	// wgMsgTypeTransport is the highest WireGuard message type.
-	wgMsgTypeTransport uint32 = 4
-	// wgMinMsgSize is the smallest WireGuard message: transport data with an empty
-	// payload, which is what a keepalive is.
-	wgMinMsgSize = 32
-)
-
 type receiverCreator struct {
 	iceBind *ICEBind
 }
@@ -226,15 +216,8 @@ func (s *ICEBind) createReceiverFn(pc wgConn.BatchReader, conn *net.UDPConn, rxO
 		for i := 0; i < numMsgs; i++ {
 			msg := &(*msgs)[i]
 
-			if ok, err := s.filterOutStunMessages(msg.Buffers, msg.N, msg.Addr); ok {
-				if err != nil {
-					log.Debugf("failed to handle STUN packet from %s: %v", msg.Addr, err)
-				}
-				// WireGuard reuses sizes and eps across reads and only skips a slot
-				// whose size is below the minimum message size. Leaving a consumed
-				// slot untouched makes it process this buffer again under the
-				// previous packet's length and endpoint.
-				sizes[i] = 0
+			// todo: handle err
+			if ok, _ := s.filterOutStunMessages(msg.Buffers, msg.N, msg.Addr); ok {
 				continue
 			}
 			sizes[i] = msg.N
@@ -288,16 +271,11 @@ func (s *ICEBind) createOrUpdateMux() {
 
 func (s *ICEBind) filterOutStunMessages(buffers [][]byte, n int, addr net.Addr) (bool, error) {
 	for i := range buffers {
-		if n > len(buffers[i]) {
-			continue
-		}
-		pkt := buffers[i][:n]
-
-		if isWireGuardMsg(pkt) || !stun.IsMessage(pkt) {
+		if !stun.IsMessage(buffers[i]) {
 			continue
 		}
 
-		msg, err := s.parseSTUNMessage(pkt)
+		msg, err := s.parseSTUNMessage(buffers[i][:n])
 		if err != nil {
 			buffers[i] = []byte{}
 			return true, err
@@ -369,34 +347,18 @@ func putMessages(msgs *[]ipv6.Message, msgsPool *sync.Pool) {
 	msgsPool.Put(msgs)
 }
 
-// isWireGuardMsg reports whether the packet carries a WireGuard message header: a
-// little-endian uint32 message type in the range 1..4, which leaves the three bytes
-// after the type byte zero, in a packet long enough to hold any WireGuard message.
-//
-// A well formed STUN message cannot take that shape. Its length field sits in the two
-// bytes the type must leave zero, and for a message of at least wgMinMsgSize bytes that
-// field holds at least 12, so the two framings do not overlap. The test has to be this
-// tight because stun.IsMessage only looks at the magic cookie, which in a WireGuard
-// message overlaps the receiver index: a session whose index happens to equal the cookie
-// would otherwise have all of its inbound data misrouted to the STUN handler until the
-// next rekey.
-func isWireGuardMsg(pkt []byte) bool {
-	if len(pkt) < wgMinMsgSize {
-		return false
-	}
-
-	msgType := binary.LittleEndian.Uint32(pkt[:4])
-	return msgType >= wgMsgTypeHandshakeInitiation && msgType <= wgMsgTypeTransport
-}
-
-// isTransportPkg reports whether the packet is WireGuard transport data carrying a
-// payload, which is what counts as peer activity. A keepalive holds no payload and is
-// exactly wgMinMsgSize bytes.
 func isTransportPkg(buffers [][]byte, n int) bool {
-	if n < 4 || n > len(buffers[0]) {
-		return false
+	// The first buffer should contain at least 4 bytes for type
+	if len(buffers[0]) < 4 {
+		return true
 	}
 
-	msgType := binary.LittleEndian.Uint32(buffers[0][:4])
-	return msgType == wgMsgTypeTransport && n > wgMinMsgSize
+	// WireGuard packet type is a little-endian uint32 at start
+	packetType := binary.LittleEndian.Uint32(buffers[0][:4])
+
+	// Check if packetType matches known WireGuard message types
+	if packetType == 4 && n > 32 {
+		return true
+	}
+	return false
 }

client/iface/bind/stun_filter_test.go

@@ -1,215 +0,0 @@
-//go:build !js
-
-package bind
-
-import (
-	"encoding/binary"
-	"net"
-	"testing"
-	"time"
-
-	"github.com/pion/stun/v3"
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"golang.org/x/net/ipv4"
-	wgConn "golang.zx2c4.com/wireguard/conn"
-)
-
-// magicCookieBytes is the STUN magic cookie as it appears on the wire. In a
-// WireGuard message the same offset holds the receiver (or sender) index, which is
-// a random uint32, so a session can draw exactly this value.
-var magicCookieBytes = []byte{0x21, 0x12, 0xA4, 0x42}
-
-const testBufSize = 1500
-
-// wgMsg builds a WireGuard message of the given type and size, with the index field
-// at bytes 4:8 set to index.
-func wgMsg(msgType uint32, size int, index []byte) []byte {
-	pkt := make([]byte, size)
-	binary.LittleEndian.PutUint32(pkt[:4], msgType)
-	copy(pkt[4:8], index)
-	return pkt
-}
-
-// intoBuffer copies pkt into a full-size receive buffer, the way the kernel read
-// does, so tests see the same buffer/length split as the hot path.
-func intoBuffer(pkt []byte) [][]byte {
-	buf := make([]byte, testBufSize)
-	copy(buf, pkt)
-	return [][]byte{buf}
-}
-
-func TestFilterOutStunMessages_PassesWireGuardWithCookieShapedIndex(t *testing.T) {
-	tests := []struct {
-		name    string
-		msgType uint32
-		size    int
-	}{
-		{"transport data", wgMsgTypeTransport, 128},
-		{"keepalive", wgMsgTypeTransport, wgMinMsgSize},
-		{"handshake initiation", wgMsgTypeHandshakeInitiation, 148},
-		{"handshake response", 2, 92},
-		{"cookie reply", 3, 64},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			pkt := wgMsg(tc.msgType, tc.size, magicCookieBytes)
-			require.True(t, stun.IsMessage(pkt), "precondition: pion sees this as STUN")
-
-			buffers := intoBuffer(pkt)
-			bind := &ICEBind{}
-
-			filtered, err := bind.filterOutStunMessages(buffers, tc.size, &net.UDPAddr{})
-			assert.NoError(t, err)
-			assert.False(t, filtered, "WireGuard message must be handed to WireGuard, not the STUN handler")
-			assert.Len(t, buffers[0], testBufSize, "buffer must be left intact for WireGuard")
-		})
-	}
-}
-
-func TestFilterOutStunMessages_FiltersRealSTUNMessage(t *testing.T) {
-	msg, err := stun.Build(stun.BindingRequest, stun.TransactionID, stun.Fingerprint)
-	require.NoError(t, err)
-
-	buffers := intoBuffer(msg.Raw)
-	bind := &ICEBind{}
-
-	filtered, err := bind.filterOutStunMessages(buffers, len(msg.Raw), &net.UDPAddr{})
-	assert.NoError(t, err)
-	assert.True(t, filtered, "STUN message must be consumed by the STUN handler")
-	assert.Empty(t, buffers[0], "consumed buffer must be emptied so WireGuard does not see it")
-}
-
-// TestIsWireGuardMsg_DisjointFromSTUN locks the invariant the filter relies on: a
-// well formed STUN message long enough to be a WireGuard message always has a
-// non-zero length field, so it cannot be mistaken for a WireGuard header.
-func TestIsWireGuardMsg_DisjointFromSTUN(t *testing.T) {
-	types := []stun.MessageType{
-		stun.BindingRequest,
-		stun.BindingSuccess,
-		stun.BindingError,
-		{Method: stun.MethodBinding, Class: stun.ClassIndication},
-	}
-
-	for _, msgType := range types {
-		// Long enough that the length guard is not what makes this pass.
-		msg, err := stun.Build(msgType, stun.TransactionID,
-			stun.NewUsername("remoteUfrag:localUfrag"), stun.Fingerprint)
-		require.NoError(t, err)
-		require.GreaterOrEqual(t, len(msg.Raw), wgMinMsgSize, "precondition: %s", msgType)
-		assert.False(t, isWireGuardMsg(msg.Raw),
-			"%s must not look like a WireGuard message", msgType)
-	}
-}
-
-func TestIsWireGuardMsg(t *testing.T) {
-	tests := []struct {
-		name string
-		pkt  []byte
-		want bool
-	}{
-		{"transport data", wgMsg(wgMsgTypeTransport, 128, nil), true},
-		{"handshake initiation", wgMsg(wgMsgTypeHandshakeInitiation, 148, nil), true},
-		{"unknown type 5", wgMsg(5, 128, nil), false},
-		{"type 0", wgMsg(0, 128, nil), false},
-		{"non-zero reserved byte", []byte{0x04, 0x00, 0x01, 0x00}, false},
-		{"too short", []byte{0x04, 0x00, 0x00}, false},
-		{"empty", nil, false},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			assert.Equal(t, tc.want, isWireGuardMsg(tc.pkt), "wrong classification for %s", tc.name)
-		})
-	}
-}
-
-// TestFilterOutStunMessages_IgnoresBytesBeyondPacket guards against classifying on
-// buffer contents left over from an earlier, longer packet.
-func TestFilterOutStunMessages_IgnoresBytesBeyondPacket(t *testing.T) {
-	buf := make([]byte, testBufSize)
-	copy(buf[4:8], magicCookieBytes)
-	buffers := [][]byte{buf}
-	bind := &ICEBind{}
-
-	filtered, err := bind.filterOutStunMessages(buffers, 2, &net.UDPAddr{})
-	assert.NoError(t, err)
-	assert.False(t, filtered, "a 2 byte packet must not be classified from stale buffer bytes")
-}
-
-// TestReceiveFn_ClearsSizeOfConsumedPacket covers the accounting WireGuard relies
-// on: sizes is reused across reads, so a slot whose packet was consumed as STUN must
-// be reported as empty. Otherwise WireGuard reprocesses the same buffer under the
-// previous packet's length, which for a WireGuard-shaped packet means it is handled
-// twice.
-func TestReceiveFn_ClearsSizeOfConsumedPacket(t *testing.T) {
-	conn := listenUDP(t, "udp4", "127.0.0.1:0")
-	defer conn.Close()
-
-	recvFn := receiverCreator{setupICEBind(t)}.CreateReceiverFn(
-		ipv4.NewPacketConn(conn), conn, false, createMsgPool(),
-	)
-
-	msg, err := stun.Build(stun.BindingRequest, stun.TransactionID, stun.Fingerprint)
-	require.NoError(t, err)
-
-	sender := listenUDP(t, "udp4", "127.0.0.1:0")
-	defer sender.Close()
-	_, err = sender.WriteTo(msg.Raw, conn.LocalAddr())
-	require.NoError(t, err)
-
-	require.NoError(t, conn.SetReadDeadline(time.Now().Add(3*time.Second)))
-
-	bufs := [][]byte{make([]byte, 1500)}
-	// A leftover size from an earlier read, which is what makes the missing reset
-	// observable.
-	sizes := []int{148}
-	eps := make([]wgConn.Endpoint, 1)
-
-	n, err := recvFn(bufs, sizes, eps)
-	require.NoError(t, err)
-	require.Equal(t, 1, n)
-	assert.Zero(t, sizes[0], "consumed STUN packet must not leave a size behind for WireGuard")
-}
-
-func TestIsTransportPkg(t *testing.T) {
-	tests := []struct {
-		name string
-		pkt  []byte
-		n    int
-		want bool
-	}{
-		{"transport data with payload", wgMsg(wgMsgTypeTransport, 128, nil), 128, true},
-		{"keepalive", wgMsg(wgMsgTypeTransport, wgMinMsgSize, nil), wgMinMsgSize, false},
-		{"handshake initiation", wgMsg(wgMsgTypeHandshakeInitiation, 148, nil), 148, false},
-		{"stale type bytes beyond packet", wgMsg(wgMsgTypeTransport, 128, nil), 2, false},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			assert.Equal(t, tc.want, isTransportPkg(intoBuffer(tc.pkt), tc.n),
-				"wrong activity classification for %s", tc.name)
-		})
-	}
-}
-
-// TestFilterOutStunMessages_ConsumesSTUNWithWireGuardShapedType covers the one STUN
-// encoding whose leading bytes collide with a WireGuard message type: method 0x080 as a
-// request encodes to 0x0200, so the type byte reads as a handshake response and the byte
-// after it is zero. Only the length check keeps such a message out of WireGuard's hands.
-// pion implements no method in that range, so this is a synthetic worst case rather than
-// traffic ICE produces.
-func TestFilterOutStunMessages_ConsumesSTUNWithWireGuardShapedType(t *testing.T) {
-	msg, err := stun.Build(stun.NewType(stun.Method(0x080), stun.ClassRequest), stun.TransactionID)
-	require.NoError(t, err)
-	require.Equal(t, []byte{0x02, 0x00, 0x00, 0x00}, msg.Raw[:4],
-		"precondition: the leading bytes read as a WireGuard message type")
-
-	buffers := intoBuffer(msg.Raw)
-	bind := &ICEBind{}
-
-	filtered, err := bind.filterOutStunMessages(buffers, len(msg.Raw), &net.UDPAddr{})
-	assert.NoError(t, err)
-	assert.True(t, filtered, "STUN message must be consumed despite its WireGuard-shaped type")
-}

client/internal/debug/debug.go

@@ -34,8 +34,9 @@ import (
 	"github.com/netbirdio/netbird/shared/netiputil"
 )
 
-const readmeContent = `This debug bundle contains the following files.
-If anonymization is enabled (--anonymize / --anonymize-level), the files are anonymized to protect sensitive information.
+const readmeContent = `Netbird debug bundle
+This debug bundle contains the following files.
+If the --anonymize flag is set, the files are anonymized to protect sensitive information.
 
 status.txt: Anonymized status information of the NetBird client.
 client.log: Most recent, anonymized client log file of the NetBird client.
@@ -69,34 +70,21 @@ capture.pcap: Packet capture in pcap format. Only present when capture was runni
 
 
 Anonymization Process
-The files in this bundle have been anonymized to protect sensitive information. The level applied to this bundle is recorded at the top of this file. Here's how the anonymization was applied:
+The files in this bundle have been anonymized to protect sensitive information. Here's how the anonymization was applied:
 
 IP Addresses
 
-Default level:
-- Public IPv4 addresses are replaced with addresses starting from 198.51.100.0
-- Public IPv6 addresses are replaced with addresses starting from 2001:db8:ffff::
-- IPv6 unique local addresses (fc00::/7) are anonymized as well: their random global ID uniquely identifies the network.
-- IP addresses from internal IPv4 ranges and well-known addresses are not anonymized (e.g. 8.8.8.8, 100.64.0.0/10, addresses starting with 192.168., 172.16., 10., 169.254., fe80::).
-
-Strict level (--anonymize-level strict), in addition to the default level:
-- Private (RFC 1918), CGNAT (100.64.0.0/10), and link-local (169.254.0.0/16, fe80::/10) addresses are anonymized too.
-- Internal IPv4 addresses are replaced with addresses starting from 198.18.0.0 and internal IPv6 addresses with addresses starting from 2001:db8:1::, so internal addresses remain distinguishable from public ones.
-- Addresses are mapped in order of first appearance: subnet structure, allocation scheme, and gateway conventions are not preserved. Prefix lengths of networks are preserved.
-- Peer names in front of NetBird domains are replaced with numbered placeholders (e.g. peer-1.netbird.cloud), and subdomain labels of other domains with host-N placeholders.
-- WireGuard public keys are replaced with consistent placeholder keys.
+IPv4 addresses are replaced with addresses starting from 198.51.100.0
+IPv6 addresses are replaced with addresses starting from 100::
 
+IP addresses from non public ranges and well known addresses are not anonymized (e.g. 8.8.8.8, 100.64.0.0/10, addresses starting with 192.168., 172.16., 10., etc.).
 Reoccuring IP addresses are replaced with the same anonymized address.
 
 Note: The anonymized IP addresses in the status file do not match those in the log and routes files. However, the anonymized IP addresses are consistent within the status file and across the routes and log files.
 
-MAC Addresses
-MAC addresses are replaced at every anonymization level with consistent placeholders counting up from 02:00:00:00:00:01. Broadcast, multicast, and all-zero addresses are kept. At the default level a preserved IPv6 link-local address may still embed a MAC address (EUI-64); the strict level anonymizes those addresses.
-
 Domains
 All domain names (except for the netbird domains) are replaced with randomly generated strings ending in ".domain". Anonymized domains are consistent across all files in the bundle.
 Reoccuring domain names are replaced with the same anonymized domain.
-At the strict level, the peer name labels in front of netbird domains are anonymized as well.
 
 Sync Response
 The network_map.json file contains the following anonymized information:
@@ -293,7 +281,6 @@ type BundleGenerator struct {
 	cliVersion     string
 
 	anonymize         bool
-	anonymizeLevel    anonymize.Level
 	includeSystemInfo bool
 	logFileCount      uint32
 
@@ -301,10 +288,7 @@ type BundleGenerator struct {
 }
 
 type BundleConfig struct {
-	Anonymize bool
-	// AnonymizeLevel selects how much the anonymizer redacts.
-	// anonymize.LevelStrict implies Anonymize.
-	AnonymizeLevel    anonymize.Level
+	Anonymize         bool
 	IncludeSystemInfo bool
 	LogFileCount      uint32
 }
@@ -343,11 +327,8 @@ func NewBundleGenerator(deps GeneratorDependencies, cfg BundleConfig) *BundleGen
 		uiLogOpener = openLogFile
 	}
 
-	anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-	anonymizer.SetLevel(cfg.AnonymizeLevel)
-
 	return &BundleGenerator{
-		anonymizer: anonymizer,
+		anonymizer: anonymize.NewAnonymizer(anonymize.DefaultAddresses()),
 
 		internalConfig: deps.InternalConfig,
 		statusRecorder: deps.StatusRecorder,
@@ -364,8 +345,7 @@ func NewBundleGenerator(deps GeneratorDependencies, cfg BundleConfig) *BundleGen
 		daemonVersion:  deps.DaemonVersion,
 		cliVersion:     deps.CliVersion,
 
-		anonymize:         cfg.Anonymize || cfg.AnonymizeLevel >= anonymize.LevelStrict,
-		anonymizeLevel:    cfg.AnonymizeLevel,
+		anonymize:         cfg.Anonymize,
 		includeSystemInfo: cfg.IncludeSystemInfo,
 		logFileCount:      logFileCount,
 	}
@@ -505,13 +485,7 @@ func (g *BundleGenerator) addSystemInfo() {
 }
 
 func (g *BundleGenerator) addReadme() error {
-	level := "none (anonymization disabled)"
-	if g.anonymize {
-		level = g.anonymizeLevel.String()
-	}
-	header := fmt.Sprintf("Netbird debug bundle\nAnonymization level applied to this bundle: %s\n", level)
-
-	readmeReader := strings.NewReader(header + readmeContent)
+	readmeReader := strings.NewReader(readmeContent)
 	if err := g.addFileToZip(readmeReader, "README.txt"); err != nil {
 		return fmt.Errorf("add README file to zip: %w", err)
 	}
@@ -533,10 +507,9 @@ func (g *BundleGenerator) addStatus() error {
 		fullStatus := g.statusRecorder.GetFullStatus()
 		protoFullStatus := nbstatus.ToProtoFullStatus(fullStatus)
 		overview := nbstatus.ConvertToStatusOutputOverview(protoFullStatus, nbstatus.ConvertOptions{
-			Anonymize:      g.anonymize,
-			AnonymizeLevel: g.anonymizeLevel,
-			ProfileName:    profName,
-			DaemonVersion:  g.daemonVersion,
+			Anonymize:     g.anonymize,
+			ProfileName:   profName,
+			DaemonVersion: g.daemonVersion,
 		})
 		overview.CliVersion = g.cliVersion
 		statusOutput := overview.FullDetailSummary()
@@ -689,7 +662,7 @@ func (g *BundleGenerator) addCommonConfigFields(configContent *strings.Builder)
 	configContent.WriteString("NetBird Client Configuration:\n\n")
 
 	if key, err := wgtypes.ParseKey(g.internalConfig.PrivateKey); err == nil {
-		configContent.WriteString(fmt.Sprintf("PublicKey: %s\n", g.anonymizer.AnonymizeWGKey(key.PublicKey().String())))
+		configContent.WriteString(fmt.Sprintf("PublicKey: %s\n", key.PublicKey().String()))
 	}
 	configContent.WriteString(fmt.Sprintf("WgIface: %s\n", g.internalConfig.WgIface))
 	configContent.WriteString(fmt.Sprintf("WgPort: %d\n", g.internalConfig.WgPort))
@@ -979,11 +952,6 @@ func (g *BundleGenerator) addUpdateLogs() error {
 		}
 
 		baseName := filepath.Base(logFile)
-		data, err = g.anonymizeBytes(data)
-		if err != nil {
-			log.Warnf("skipping update log file %s: %v", baseName, err)
-			continue
-		}
 		if err := g.addFileToZip(bytes.NewReader(data), filepath.Join("update-logs", baseName)); err != nil {
 			return fmt.Errorf("add update log file %s to zip: %w", baseName, err)
 		}
@@ -1011,13 +979,6 @@ func (g *BundleGenerator) addCorruptedStateFiles() error {
 		}
 
 		fileName := filepath.Base(match)
-		// Corrupted state files usually fail structured JSON anonymization,
-		// so run them through the string anonymizer instead.
-		data, err = g.anonymizeBytes(data)
-		if err != nil {
-			log.Warnf("skipping corrupted state file %s: %v", fileName, err)
-			continue
-		}
 		if err := g.addFileToZip(bytes.NewReader(data), "corrupted_states/"+fileName); err != nil {
 			log.Warnf("Failed to add corrupted state file %s to zip: %v", fileName, err)
 			continue
@@ -1029,27 +990,6 @@ func (g *BundleGenerator) addCorruptedStateFiles() error {
 	return nil
 }
 
-// anonymizeBytes runs raw file content through the string anonymizer line by
-// line when anonymization is enabled. It errors instead of returning partial
-// content, so a caller never adds an unanonymized fallback to the bundle.
-func (g *BundleGenerator) anonymizeBytes(data []byte) ([]byte, error) {
-	if !g.anonymize {
-		return data, nil
-	}
-
-	var buf bytes.Buffer
-	scanner := bufio.NewScanner(bytes.NewReader(data))
-	scanner.Buffer(make([]byte, 1024*1024), 1024*1024)
-	for scanner.Scan() {
-		buf.WriteString(g.anonymizer.AnonymizeString(scanner.Text()))
-		buf.WriteByte('\n')
-	}
-	if err := scanner.Err(); err != nil {
-		return nil, fmt.Errorf("anonymize content: %w", err)
-	}
-	return buf.Bytes(), nil
-}
-
 func (g *BundleGenerator) addMetrics() error {
 	if g.clientMetrics == nil {
 		log.Debugf("skipping metrics in debug bundle: no metrics collector")
@@ -1522,7 +1462,6 @@ func anonymizeRemotePeer(peer *mgmProto.RemotePeerConfig, anonymizer *anonymize.
 	}
 
 	peer.Fqdn = anonymizer.AnonymizeDomain(peer.Fqdn)
-	peer.WgPubKey = anonymizer.AnonymizeWGKey(peer.WgPubKey)
 
 	anonymizeSSHConfig(peer.SshConfig)
 }

client/internal/debug/wgshow.go

@@ -35,14 +35,14 @@ func (g *BundleGenerator) toWGShowFormat(s *configurer.Stats) string {
 	var sb strings.Builder
 
 	sb.WriteString(fmt.Sprintf("interface: %s\n", s.DeviceName))
-	sb.WriteString(fmt.Sprintf("  public key: %s\n", g.anonymizer.AnonymizeWGKey(s.PublicKey)))
+	sb.WriteString(fmt.Sprintf("  public key: %s\n", s.PublicKey))
 	sb.WriteString(fmt.Sprintf("  listen port: %d\n", s.ListenPort))
 	if s.FWMark != 0 {
 		sb.WriteString(fmt.Sprintf("  fwmark: %#x\n", s.FWMark))
 	}
 
 	for _, peer := range s.Peers {
-		sb.WriteString(fmt.Sprintf("\npeer: %s\n", g.anonymizer.AnonymizeWGKey(peer.PublicKey)))
+		sb.WriteString(fmt.Sprintf("\npeer: %s\n", peer.PublicKey))
 		if peer.Endpoint.IP != nil {
 			if g.anonymize {
 				anonEndpoint := g.anonymizer.AnonymizeUDPAddr(peer.Endpoint)
@@ -54,11 +54,7 @@ func (g *BundleGenerator) toWGShowFormat(s *configurer.Stats) string {
 		if len(peer.AllowedIPs) > 0 {
 			var ipStrings []string
 			for _, ipnet := range peer.AllowedIPs {
-				ipStr := ipnet.String()
-				if g.anonymize {
-					ipStr = g.anonymizer.AnonymizeIPString(ipStr)
-				}
-				ipStrings = append(ipStrings, ipStr)
+				ipStrings = append(ipStrings, ipnet.String())
 			}
 			sb.WriteString(fmt.Sprintf("  allowed ips: %s\n", strings.Join(ipStrings, ", ")))
 		}

client/internal/engine.go

@@ -23,7 +23,6 @@ import (
 	"golang.zx2c4.com/wireguard/tun/netstack"
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 
-	"github.com/netbirdio/netbird/client/anonymize"
 	nberrors "github.com/netbirdio/netbird/client/errors"
 	"github.com/netbirdio/netbird/client/firewall"
 	"github.com/netbirdio/netbird/client/firewall/firewalld"
@@ -49,6 +48,7 @@ import (
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/internal/peer/guard"
 	icemaker "github.com/netbirdio/netbird/client/internal/peer/ice"
+	"github.com/netbirdio/netbird/client/internal/peer/signaling"
 	"github.com/netbirdio/netbird/client/internal/peerstore"
 	"github.com/netbirdio/netbird/client/internal/portforward"
 	"github.com/netbirdio/netbird/client/internal/profilemanager"
@@ -187,7 +187,7 @@ type EngineServices struct {
 type Engine struct {
 	// signal is a Signal Service client
 	signal   signal.Client
-	signaler *peer.Signaler
+	signaler *signaling.Signaler
 	// mgmClient is a Management Service client
 	mgmClient mgm.Client
 	// peerConns is a map that holds all the peers that are known to this peer
@@ -330,7 +330,7 @@ func NewEngine(
 		ctx:                ctx,
 		cancel:             cancel,
 		signal:             services.SignalClient,
-		signaler:           peer.NewSignaler(services.SignalClient, config.WgPrivateKey),
+		signaler:           signaling.NewSignaler(services.SignalClient, config.WgPrivateKey),
 		mgmClient:          services.MgmClient,
 		relayManager:       services.RelayManager,
 		peerStore:          peerstore.NewConnStore(),
@@ -1386,7 +1386,6 @@ func (e *Engine) handleBundle(params *mgmProto.BundleParameters) (*mgmProto.JobR
 
 	bundleJobParams := debug.BundleConfig{
 		Anonymize:         params.Anonymize,
-		AnonymizeLevel:    anonymize.ParseLevel(params.AnonymizeLevel),
 		IncludeSystemInfo: true,
 		LogFileCount:      uint32(params.LogFileCount),
 	}
@@ -2817,7 +2816,7 @@ func createFile(path string) error {
 	return file.Close()
 }
 
-func convertToOfferAnswer(msg *sProto.Message) (*peer.OfferAnswer, error) {
+func convertToOfferAnswer(msg *sProto.Message) (*signaling.OfferAnswer, error) {
 	remoteCred, err := signal.UnMarshalCredential(msg)
 	if err != nil {
 		return nil, err
@@ -2833,9 +2832,9 @@ func convertToOfferAnswer(msg *sProto.Message) (*peer.OfferAnswer, error) {
 	}
 
 	// Handle optional SessionID
-	var sessionID *peer.ICESessionID
+	var sessionID *icemaker.SessionID
 	if sessionBytes := msg.GetBody().GetSessionId(); sessionBytes != nil {
-		if id, err := peer.ICESessionIDFromBytes(sessionBytes); err != nil {
+		if id, err := icemaker.SessionIDFromBytes(sessionBytes); err != nil {
 			log.Warnf("Invalid session ID in message: %v", err)
 			sessionID = nil // Set to nil if conversion fails
 		} else {
@@ -2845,8 +2844,8 @@ func convertToOfferAnswer(msg *sProto.Message) (*peer.OfferAnswer, error) {
 
 	relayIP := decodeRelayIP(msg.GetBody().GetRelayServerIP())
 
-	offerAnswer := peer.OfferAnswer{
-		IceCredentials: peer.IceCredentials{
+	offerAnswer := signaling.OfferAnswer{
+		IceCredentials: signaling.IceCredentials{
 			UFrag: remoteCred.UFrag,
 			Pwd:   remoteCred.Pwd,
 		},

client/internal/metrics/connection_type.go

@@ -4,17 +4,11 @@ package metrics
 type ConnectionType string
 
 const (
-	// ConnectionTypeICEP2P represents a direct peer-to-peer connection using ICE
-	ConnectionTypeICEP2P ConnectionType = "ice_p2p"
-
-	// ConnectionTypeICETurn represents an ICE connection through a TURN server
-	ConnectionTypeICETurn ConnectionType = "ice_turn"
+	// ConnectionTypeICE represents a direct peer-to-peer connection using ICE
+	ConnectionTypeICE ConnectionType = "ice"
 
 	// ConnectionTypeRelay represents a relayed connection
 	ConnectionTypeRelay ConnectionType = "relay"
-
-	// ConnectionTypeUnknown represents a connection with no active transport. It is not pushed.
-	ConnectionTypeUnknown ConnectionType = "unknown"
 )
 
 // String returns the string representation of the connection type

client/internal/metrics/influxdb_test.go

@@ -28,7 +28,7 @@ func TestInfluxDBMetrics_RecordAndExport(t *testing.T) {
 		WgHandshakeSuccess: time.Now().Add(-1 * time.Second),
 	}
 
-	m.RecordConnectionStages(context.Background(), agentInfo, "pair123", ConnectionTypeICEP2P, false, ts)
+	m.RecordConnectionStages(context.Background(), agentInfo, "pair123", ConnectionTypeICE, false, ts)
 
 	var buf bytes.Buffer
 	err := m.Export(&buf)
@@ -60,7 +60,7 @@ func TestInfluxDBMetrics_ExportDeterministicFieldOrder(t *testing.T) {
 
 	// Record multiple times and verify consistent field order
 	for i := 0; i < 10; i++ {
-		m.RecordConnectionStages(context.Background(), agentInfo, "pair123", ConnectionTypeICEP2P, false, ts)
+		m.RecordConnectionStages(context.Background(), agentInfo, "pair123", ConnectionTypeICE, false, ts)
 	}
 
 	var buf bytes.Buffer

client/internal/metrics/infra/README.md

@@ -56,33 +56,14 @@ Measurement: `netbird_peer_connection`
 
 Tags:
 - `deployment_type`: "cloud" | "selfhosted" | "unknown"
-- `connection_type`: "ice_p2p" | "ice_turn" | "relay" (see below)
+- `connection_type`: "ice" | "relay"
 - `attempt_type`: "initial" | "reconnection"
 - `version`: NetBird version string
 - `os`: Operating system (linux, darwin, windows, android, ios, etc.)
 - `arch`: CPU architecture (amd64, arm64, etc.)
-- `peer_id`: anonymised peer identifier (truncated SHA-256 of the WireGuard public key)
-- `connection_pair_id`: deterministic identifier for the peer pair, identical on both sides
 
 **Note:** `SignalingReceived` is set when the first offer or answer arrives from the remote peer (in both initial and reconnection paths). It excludes the potentially unbounded wait for the remote peer to come online.
 
-#### `connection_type` values
-
-Derived from the connection priority (`conntype.ConnPriority`) by `metricsConnType` in `client/internal/peer/conn.go`:
-
-| Value | Priority | Traffic is |
-|-------|----------|------------|
-| `ice_p2p` | `ICEP2P` | direct peer-to-peer |
-| `ice_turn` | `ICETurn` | relayed, through a TURN server |
-| `relay` | `Relay` | relayed, through a NetBird relay |
-| `unknown` | `None` or unrecognised | no active transport — **the sample is not pushed** |
-
-**Direct traffic is `ice_p2p` only.** `ice_turn` is relayed despite being negotiated by ICE, matching `Conn.isRelayed`.
-
-`None` means no transport is active: not established yet, or reset after a relay drop or a peer-state reset. Such a sample cannot be attributed to a transport, so `recordConnectionMetrics` drops it instead of pushing it — `unknown` therefore never appears in the bucket. Connection counts are counts of connections whose transport was known at sampling time.
-
-**Samples recorded before 0.77 used a single `ice` value** which covered `ICEP2P`, `ICETurn` *and* `None`, so historical `ice` samples overstate direct connections by an unknown amount and must not be compared with `ice_p2p`.
-
 ### Sync Duration
 
 Measurement: `netbird_sync`

client/internal/peer/conn_status.go

@@ -1,18 +1,5 @@
 package peer
 
-import (
-	log "github.com/sirupsen/logrus"
-)
-
-const (
-	// StatusIdle indicate the peer is in disconnected state
-	StatusIdle ConnStatus = iota
-	// StatusConnecting indicate the peer is in connecting state
-	StatusConnecting
-	// StatusConnected indicate the peer is in connected state
-	StatusConnected
-)
-
 // connStatusInputs is the primitive-valued snapshot of the state that drives the
 // tri-state connection classification. Extracted so the decision logic can be unit-tested
 // without constructing full Worker/Handshaker objects.
@@ -21,24 +8,7 @@ type connStatusInputs struct {
 	peerUsesRelay       bool // remote peer advertises relay support AND local has relay
 	relayConnected      bool // statusRelay reports Connected (independent of whether peer uses relay)
 	remoteSupportsICE   bool // remote peer sent ICE credentials
-	iceWorkerCreated    bool // local WorkerICE exists (false in force-relay mode)
+	iceWorkerCreated    bool // local ICE worker exists (false in force-relay mode)
 	iceStatusConnecting bool // statusICE is anything other than Disconnected
 	iceInProgress       bool // a negotiation is currently in flight
 }
-
-// ConnStatus describe the status of a peer's connection
-type ConnStatus int32
-
-func (s ConnStatus) String() string {
-	switch s {
-	case StatusConnecting:
-		return "Connecting"
-	case StatusConnected:
-		return "Connected"
-	case StatusIdle:
-		return "Idle"
-	default:
-		log.Errorf("unknown status: %d", s)
-		return "INVALID_PEER_CONNECTION_STATUS"
-	}
-}

client/internal/peer/conn_test.go

@@ -3,30 +3,33 @@ package peer
 import (
 	"context"
 	"fmt"
+	"net/netip"
 	"os"
 	"testing"
 	"time"
 
 	log "github.com/sirupsen/logrus"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 
 	"github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/internal/metrics"
-	"github.com/netbirdio/netbird/client/internal/peer/conntype"
-	"github.com/netbirdio/netbird/client/internal/peer/dispatcher"
 	"github.com/netbirdio/netbird/client/internal/peer/guard"
 	"github.com/netbirdio/netbird/client/internal/peer/ice"
+	"github.com/netbirdio/netbird/client/internal/peer/metricsstages"
+	"github.com/netbirdio/netbird/client/internal/peer/signaling"
+	"github.com/netbirdio/netbird/client/internal/peer/status"
 	"github.com/netbirdio/netbird/client/internal/stdnet"
 	"github.com/netbirdio/netbird/util"
 )
 
-var testDispatcher = dispatcher.NewConnectionDispatcher()
-
 var connConf = ConnConfig{
 	Key:         "LLHf3Ma6z6mdLbriAJbqhX7+nM/B71lgw2+91q3LfhU=",
 	LocalKey:    "RRHf3Ma6z6mdLbriAJbqhX7+nM/B71lgw2+91q3LfhU=",
 	Timeout:     time.Second,
 	LocalWgPort: 51820,
+	WgConfig: WgConfig{
+		AllowedIps: []netip.Prefix{netip.MustParsePrefix("100.64.0.1/32")},
+	},
 	ICEConfig: ice.Config{
 		InterfaceBlackList: nil,
 	},
@@ -54,92 +57,37 @@ func TestConn_GetKey(t *testing.T) {
 	swWatcher := guard.NewSRWatcher(nil, nil, nil, connConf.ICEConfig)
 
 	sd := ServiceDependencies{
-		SrWatcher:          swWatcher,
-		PeerConnDispatcher: testDispatcher,
+		SrWatcher: swWatcher,
 	}
 	conn, err := NewConn(connConf, sd)
-	if err != nil {
-		return
-	}
+	require.NoError(t, err)
 
 	got := conn.GetKey()
 
 	assert.Equal(t, got, connConf.Key, "they should be equal")
 }
 
-func TestConn_OnRemoteOffer(t *testing.T) {
+// TestConn_DiscardMessagesWhenNotOpened: signal messages posted to a not yet
+// opened connection must be discarded without blocking or panicking.
+func TestConn_DiscardMessagesWhenNotOpened(t *testing.T) {
 	swWatcher := guard.NewSRWatcher(nil, nil, nil, connConf.ICEConfig)
 	sd := ServiceDependencies{
-		StatusRecorder:     NewRecorder("https://mgm"),
-		SrWatcher:          swWatcher,
-		PeerConnDispatcher: testDispatcher,
+		StatusRecorder: status.NewRecorder("https://mgm"),
+		SrWatcher:      swWatcher,
 	}
 	conn, err := NewConn(connConf, sd)
-	if err != nil {
-		return
-	}
+	require.NoError(t, err)
 
-	onNewOfferChan := make(chan struct{})
-
-	conn.handshaker.AddRelayListener(func(remoteOfferAnswer *OfferAnswer) {
-		onNewOfferChan <- struct{}{}
-	})
-
-	conn.OnRemoteOffer(OfferAnswer{
-		IceCredentials: IceCredentials{
+	offerAnswer := signaling.OfferAnswer{
+		IceCredentials: signaling.IceCredentials{
 			UFrag: "test",
 			Pwd:   "test",
 		},
-		WgListenPort: 0,
-		Version:      "",
-	})
-
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-	defer cancel()
-
-	select {
-	case <-onNewOfferChan:
-		// success
-	case <-ctx.Done():
-		t.Error("expected to receive a new offer notification, but timed out")
-	}
-}
-
-func TestConn_OnRemoteAnswer(t *testing.T) {
-	swWatcher := guard.NewSRWatcher(nil, nil, nil, connConf.ICEConfig)
-	sd := ServiceDependencies{
-		StatusRecorder:     NewRecorder("https://mgm"),
-		SrWatcher:          swWatcher,
-		PeerConnDispatcher: testDispatcher,
-	}
-	conn, err := NewConn(connConf, sd)
-	if err != nil {
-		return
-	}
-
-	onNewOfferChan := make(chan struct{})
-
-	conn.handshaker.AddRelayListener(func(remoteOfferAnswer *OfferAnswer) {
-		onNewOfferChan <- struct{}{}
-	})
-
-	conn.OnRemoteAnswer(OfferAnswer{
-		IceCredentials: IceCredentials{
-			UFrag: "test",
-			Pwd:   "test",
-		},
-		WgListenPort: 0,
-		Version:      "",
-	})
-	ctx, cancel := context.WithTimeout(context.Background(), 5*time.Second)
-	defer cancel()
-
-	select {
-	case <-onNewOfferChan:
-		// success
-	case <-ctx.Done():
-		t.Error("expected to receive a new offer notification, but timed out")
 	}
+	conn.OnRemoteOffer(offerAnswer)
+	conn.OnRemoteAnswer(offerAnswer)
+	conn.OnRemoteCandidate(nil, nil)
+	conn.Close(false)
 }
 
 func TestConn_presharedKey(t *testing.T) {
@@ -322,7 +270,7 @@ func newWGTimeoutTestConn(rosenpassEnabled bool, disconnected *[]string) *Conn {
 		ctx:           context.Background(),
 		config:        cfg,
 		Log:           log.WithField("peer", cfg.Key),
-		metricsStages: &MetricsStages{},
+		metricsStages: &metricsstages.MetricsStages{},
 	}
 	conn.SetOnDisconnected(func(remotePeer string) {
 		*disconnected = append(*disconnected, remotePeer)
@@ -341,20 +289,20 @@ func TestConn_onWGDisconnected_EscalatesToRosenpassReset(t *testing.T) {
 	conn := newWGTimeoutTestConn(true, &disconnected)
 
 	for i := 0; i < wgTimeoutEscalationThreshold-1; i++ {
-		conn.onWGDisconnected(conn.ctx)
+		conn.handleWGTimeout()
 	}
 	assert.Empty(t, disconnected, "escalation must not fire below the threshold")
 
-	conn.onWGDisconnected(conn.ctx)
+	conn.handleWGTimeout()
 	assert.Equal(t, []string{conn.config.WgConfig.RemoteKey}, disconnected,
 		"reaching the threshold must report the peer disconnected once")
 
 	for i := 0; i < wgTimeoutEscalationThreshold-1; i++ {
-		conn.onWGDisconnected(conn.ctx)
+		conn.handleWGTimeout()
 	}
 	assert.Len(t, disconnected, 1, "escalation must restart counting after firing")
 
-	conn.onWGDisconnected(conn.ctx)
+	conn.handleWGTimeout()
 	assert.Len(t, disconnected, 2, "continued timeouts must escalate again")
 }
 
@@ -366,12 +314,12 @@ func TestConn_onWGDisconnected_CheckSuccessResetsEscalation(t *testing.T) {
 	conn := newWGTimeoutTestConn(true, &disconnected)
 
 	for i := 0; i < wgTimeoutEscalationThreshold-1; i++ {
-		conn.onWGDisconnected(conn.ctx)
+		conn.handleWGTimeout()
 	}
-	conn.onWGCheckSuccess()
+	conn.handleWGCheckSuccess()
 
 	for i := 0; i < wgTimeoutEscalationThreshold-1; i++ {
-		conn.onWGDisconnected(conn.ctx)
+		conn.handleWGTimeout()
 	}
 	assert.Empty(t, disconnected, "handshake success must reset the timeout count")
 }
@@ -379,42 +327,30 @@ func TestConn_onWGDisconnected_CheckSuccessResetsEscalation(t *testing.T) {
 // TestConn_onWGDisconnected_NoEscalationWithoutRosenpass: without rosenpass
 // there is no per-peer key state to reset; repeated timeouts must not report
 // disconnects.
+func TestConn_handleEvent_DropsStaleWGTimeout(t *testing.T) {
+	var disconnected []string
+	conn := newWGTimeoutTestConn(true, &disconnected)
+
+	staleCtx, cancel := context.WithCancel(context.Background())
+	cancel()
+	for i := 0; i < wgTimeoutEscalationThreshold; i++ {
+		conn.handleEvent(evWGTimeout{ctx: staleCtx})
+	}
+	assert.Empty(t, disconnected, "timeouts from a cancelled watcher must be dropped")
+
+	liveCtx := context.Background()
+	for i := 0; i < wgTimeoutEscalationThreshold; i++ {
+		conn.handleEvent(evWGTimeout{ctx: liveCtx})
+	}
+	assert.Len(t, disconnected, 1, "timeouts from the live watcher must be dispatched")
+}
+
 func TestConn_onWGDisconnected_NoEscalationWithoutRosenpass(t *testing.T) {
 	var disconnected []string
 	conn := newWGTimeoutTestConn(false, &disconnected)
 
 	for i := 0; i < wgTimeoutEscalationThreshold*3; i++ {
-		conn.onWGDisconnected(conn.ctx)
+		conn.handleWGTimeout()
 	}
 	assert.Empty(t, disconnected, "escalation must be limited to rosenpass connections")
 }
-
-func TestMetricsConnType(t *testing.T) {
-	tests := []struct {
-		name     string
-		priority conntype.ConnPriority
-		expected metrics.ConnectionType
-	}{
-		{"relay", conntype.Relay, metrics.ConnectionTypeRelay},
-		{"ice over turn is relayed, not p2p", conntype.ICETurn, metrics.ConnectionTypeICETurn},
-		{"direct p2p", conntype.ICEP2P, metrics.ConnectionTypeICEP2P},
-		{"unset priority is unknown, not p2p", conntype.None, metrics.ConnectionTypeUnknown},
-		{"unrecognised priority is unknown", conntype.ConnPriority(99), metrics.ConnectionTypeUnknown},
-	}
-
-	for _, tc := range tests {
-		t.Run(tc.name, func(t *testing.T) {
-			assert.Equal(t, tc.expected, metricsConnType(tc.priority))
-		})
-	}
-}
-
-func TestMetricsConnType_RelayedMatchesIsRelayed(t *testing.T) {
-	for _, priority := range []conntype.ConnPriority{conntype.None, conntype.Relay, conntype.ICETurn, conntype.ICEP2P} {
-		conn := &Conn{currentConnPriority: priority}
-		tag := metricsConnType(priority)
-		relayedTag := tag == metrics.ConnectionTypeRelay || tag == metrics.ConnectionTypeICETurn
-		assert.Equal(t, conn.isRelayed(), relayedTag,
-			"priority %s: isRelayed and the %q metric tag must agree", priority, tag)
-	}
-}

client/internal/peer/dispatcher/dispatcher.go

@@ -1,52 +0,0 @@
-package dispatcher
-
-import (
-	"sync"
-
-	"github.com/netbirdio/netbird/client/internal/peer/id"
-)
-
-type ConnectionListener struct {
-	OnConnected    func(peerID id.ConnID)
-	OnDisconnected func(peerID id.ConnID)
-}
-
-type ConnectionDispatcher struct {
-	listeners map[*ConnectionListener]struct{}
-	mu        sync.Mutex
-}
-
-func NewConnectionDispatcher() *ConnectionDispatcher {
-	return &ConnectionDispatcher{
-		listeners: make(map[*ConnectionListener]struct{}),
-	}
-}
-
-func (e *ConnectionDispatcher) AddListener(listener *ConnectionListener) {
-	e.mu.Lock()
-	defer e.mu.Unlock()
-	e.listeners[listener] = struct{}{}
-}
-
-func (e *ConnectionDispatcher) RemoveListener(listener *ConnectionListener) {
-	e.mu.Lock()
-	defer e.mu.Unlock()
-
-	delete(e.listeners, listener)
-}
-
-func (e *ConnectionDispatcher) NotifyConnected(peerConnID id.ConnID) {
-	e.mu.Lock()
-	defer e.mu.Unlock()
-	for listener := range e.listeners {
-		listener.OnConnected(peerConnID)
-	}
-}
-
-func (e *ConnectionDispatcher) NotifyDisconnected(peerConnID id.ConnID) {
-	e.mu.Lock()
-	defer e.mu.Unlock()
-	for listener := range e.listeners {
-		listener.OnDisconnected(peerConnID)
-	}
-}

client/internal/peer/event.go

@@ -0,0 +1,83 @@
+package peer
+
+import (
+	"context"
+	"time"
+
+	"github.com/pion/ice/v4"
+
+	"github.com/netbirdio/netbird/client/internal/peer/signaling"
+	"github.com/netbirdio/netbird/client/internal/peer/worker"
+	"github.com/netbirdio/netbird/route"
+)
+
+// event is a message processed by the Conn event loop. All mutable Conn state
+// is owned by that loop; producers deliver events through the mailbox and
+// never mutate Conn state directly.
+type event any
+
+// staleableEvent is implemented by events tied to the lifetime of a transport
+// component (WG watcher, ICE agent, relay connection). Each such component runs
+// under its own context, cancelled when the component is superseded; an event
+// carrying a cancelled context is dropped at dispatch time. A cancel performed
+// by an earlier event in the same drained batch already suppresses it.
+type staleableEvent interface {
+	isStale() bool
+}
+
+// evClose asks the event loop to tear down the connection. done is closed
+// once the teardown finished.
+type evClose struct {
+	signalToRemote bool
+	done           chan struct{}
+}
+
+type evRemoteOffer struct {
+	offer signaling.OfferAnswer
+}
+
+type evRemoteAnswer struct {
+	answer signaling.OfferAnswer
+}
+
+type evRemoteCandidate struct {
+	candidate ice.Candidate
+	haRoutes  route.HAMap
+}
+
+type evICEReady struct {
+	priority worker.ConnPriority
+	info     worker.ICEConnInfo
+}
+
+type evICEDown struct {
+	sessionChanged bool
+}
+
+type evRelayReady struct {
+	info worker.RelayConnInfo
+}
+
+type evRelayDown struct{}
+
+// evRelayDialDone reports that the relay dial helper goroutine finished,
+// successfully or not, so the loop may dispatch a pending offer.
+type evRelayDialDone struct{}
+
+type evWGTimeout struct {
+	ctx context.Context
+}
+
+func (e evWGTimeout) isStale() bool { return e.ctx.Err() != nil }
+
+// evWGHandshake reports the first WireGuard handshake of the current watcher run.
+type evWGHandshake struct {
+	when time.Time
+}
+
+// evWGCheckOK reports a watcher check that observed a fresh handshake,
+// including handshakes of connections that were already up.
+type evWGCheckOK struct{}
+
+// evGuardTick asks the loop to send a new offer to restore connectivity.
+type evGuardTick struct{}

client/internal/peer/guard/ice_monitor.go

@@ -21,8 +21,6 @@ const (
 )
 
 type ICEMonitor struct {
-	ReconnectCh chan struct{}
-
 	iFaceDiscover stdnet.ExternalIFaceDiscover
 	iceConfig     icemaker.Config
 	tickerPeriod  time.Duration
@@ -34,7 +32,6 @@ type ICEMonitor struct {
 func NewICEMonitor(iFaceDiscover stdnet.ExternalIFaceDiscover, config icemaker.Config, period time.Duration) *ICEMonitor {
 	log.Debugf("prepare ICE monitor with period: %s", period)
 	cm := &ICEMonitor{
-		ReconnectCh:   make(chan struct{}, 1),
 		iFaceDiscover: iFaceDiscover,
 		iceConfig:     config,
 		tickerPeriod:  period,

client/internal/peer/handshaker.go

@@ -1,246 +0,0 @@
-package peer
-
-import (
-	"context"
-	"errors"
-	"net/netip"
-	"sync"
-	"sync/atomic"
-
-	log "github.com/sirupsen/logrus"
-
-	"github.com/netbirdio/netbird/version"
-)
-
-var (
-	ErrSignalIsNotReady = errors.New("signal is not ready")
-)
-
-// IceCredentials ICE protocol credentials struct
-type IceCredentials struct {
-	UFrag string
-	Pwd   string
-}
-
-// OfferAnswer represents a session establishment offer or answer
-type OfferAnswer struct {
-	IceCredentials IceCredentials
-	// WgListenPort is a remote WireGuard listen port.
-	// This field is used when establishing a direct WireGuard connection without any proxy.
-	// We can set the remote peer's endpoint with this port.
-	WgListenPort int
-
-	// Version of NetBird Agent
-	Version string
-	// RosenpassPubKey is the Rosenpass public key of the remote peer when receiving this message
-	// This value is the local Rosenpass server public key when sending the message
-	RosenpassPubKey []byte
-	// RosenpassAddr is the Rosenpass server address (IP:port) of the remote peer when receiving this message
-	// This value is the local Rosenpass server address when sending the message
-	RosenpassAddr string
-
-	// relay server address
-	RelaySrvAddress string
-	// RelaySrvIP is the IP the remote peer is connected to on its
-	// relay server. Used as a dial target if DNS for RelaySrvAddress
-	// fails. Zero value if the peer did not advertise an IP.
-	RelaySrvIP netip.Addr
-	// SessionID is the unique identifier of the session, used to discard old messages
-	SessionID *ICESessionID
-}
-
-func (o *OfferAnswer) hasICECredentials() bool {
-	return o.IceCredentials.UFrag != "" && o.IceCredentials.Pwd != ""
-}
-
-type Handshaker struct {
-	mu            sync.Mutex
-	log           *log.Entry
-	config        ConnConfig
-	signaler      *Signaler
-	ice           *WorkerICE
-	relay         *WorkerRelay
-	metricsStages *MetricsStages
-	// relayListener is not blocking because the listener is using a goroutine to process the messages
-	// and it will only keep the latest message if multiple offers are received in a short time
-	// this is to avoid blocking the handshaker if the listener is doing some heavy processing
-	// and also to avoid processing old offers if multiple offers are received in a short time
-	// the listener will always process the latest offer
-	relayListener *AsyncOfferListener
-	iceListener   func(remoteOfferAnswer *OfferAnswer)
-
-	// remoteICESupported tracks whether the remote peer includes ICE credentials in its offers/answers.
-	// When false, the local side skips ICE listener dispatch and suppresses ICE credentials in responses.
-	remoteICESupported atomic.Bool
-
-	// remoteOffersCh is a channel used to wait for remote credentials to proceed with the connection
-	remoteOffersCh chan OfferAnswer
-	// remoteAnswerCh is a channel used to wait for remote credentials answer (confirmation of our offer) to proceed with the connection
-	remoteAnswerCh chan OfferAnswer
-}
-
-func NewHandshaker(log *log.Entry, config ConnConfig, signaler *Signaler, ice *WorkerICE, relay *WorkerRelay, metricsStages *MetricsStages) *Handshaker {
-	h := &Handshaker{
-		log:            log,
-		config:         config,
-		signaler:       signaler,
-		ice:            ice,
-		relay:          relay,
-		metricsStages:  metricsStages,
-		remoteOffersCh: make(chan OfferAnswer),
-		remoteAnswerCh: make(chan OfferAnswer),
-	}
-	// assume remote supports ICE until we learn otherwise from received offers
-	h.remoteICESupported.Store(ice != nil)
-	return h
-}
-
-func (h *Handshaker) RemoteICESupported() bool {
-	return h.remoteICESupported.Load()
-}
-
-func (h *Handshaker) AddRelayListener(offer func(remoteOfferAnswer *OfferAnswer)) {
-	h.relayListener = NewAsyncOfferListener(offer)
-}
-
-func (h *Handshaker) AddICEListener(offer func(remoteOfferAnswer *OfferAnswer)) {
-	h.iceListener = offer
-}
-
-func (h *Handshaker) Listen(ctx context.Context) {
-	for {
-		select {
-		case remoteOfferAnswer := <-h.remoteOffersCh:
-			h.log.Infof("received offer, running version %s, remote WireGuard listen port %d, session id: %s, remote ICE supported: %t", remoteOfferAnswer.Version, remoteOfferAnswer.WgListenPort, remoteOfferAnswer.SessionIDString(), remoteOfferAnswer.hasICECredentials())
-
-			// Record signaling received for reconnection attempts
-			if h.metricsStages != nil {
-				h.metricsStages.RecordSignalingReceived()
-			}
-
-			h.updateRemoteICEState(&remoteOfferAnswer)
-
-			if h.relayListener != nil {
-				h.relayListener.Notify(&remoteOfferAnswer)
-			}
-
-			if h.iceListener != nil && h.RemoteICESupported() {
-				h.iceListener(&remoteOfferAnswer)
-			}
-
-			if err := h.sendAnswer(); err != nil {
-				h.log.Errorf("failed to send remote offer confirmation: %s", err)
-				continue
-			}
-		case remoteOfferAnswer := <-h.remoteAnswerCh:
-			h.log.Infof("received answer, running version %s, remote WireGuard listen port %d, session id: %s, remote ICE supported: %t", remoteOfferAnswer.Version, remoteOfferAnswer.WgListenPort, remoteOfferAnswer.SessionIDString(), remoteOfferAnswer.hasICECredentials())
-
-			// Record signaling received for reconnection attempts
-			if h.metricsStages != nil {
-				h.metricsStages.RecordSignalingReceived()
-			}
-
-			h.updateRemoteICEState(&remoteOfferAnswer)
-
-			if h.relayListener != nil {
-				h.relayListener.Notify(&remoteOfferAnswer)
-			}
-
-			if h.iceListener != nil && h.RemoteICESupported() {
-				h.iceListener(&remoteOfferAnswer)
-			}
-		case <-ctx.Done():
-			h.log.Infof("stop listening for remote offers and answers")
-			return
-		}
-	}
-}
-
-func (h *Handshaker) SendOffer() error {
-	h.mu.Lock()
-	defer h.mu.Unlock()
-	return h.sendOffer()
-}
-
-// OnRemoteOffer handles an offer from the remote peer and returns true if the message was accepted, false otherwise
-// doesn't block, discards the message if connection wasn't ready
-func (h *Handshaker) OnRemoteOffer(offer OfferAnswer) {
-	select {
-	case h.remoteOffersCh <- offer:
-		return
-	default:
-		h.log.Warnf("skipping remote offer message because receiver not ready")
-		// connection might not be ready yet to receive so we ignore the message
-		return
-	}
-}
-
-// OnRemoteAnswer handles an offer from the remote peer and returns true if the message was accepted, false otherwise
-// doesn't block, discards the message if connection wasn't ready
-func (h *Handshaker) OnRemoteAnswer(answer OfferAnswer) {
-	select {
-	case h.remoteAnswerCh <- answer:
-		return
-	default:
-		// connection might not be ready yet to receive so we ignore the message
-		h.log.Warnf("skipping remote answer message because receiver not ready")
-		return
-	}
-}
-
-// sendOffer prepares local user credentials and signals them to the remote peer
-func (h *Handshaker) sendOffer() error {
-	if !h.signaler.Ready() {
-		return ErrSignalIsNotReady
-	}
-
-	offer := h.buildOfferAnswer()
-	h.log.Debugf("sending offer with serial: %s", offer.SessionIDString())
-
-	return h.signaler.SignalOffer(offer, h.config.Key)
-}
-
-func (h *Handshaker) sendAnswer() error {
-	answer := h.buildOfferAnswer()
-	h.log.Debugf("sending answer with serial: %s", answer.SessionIDString())
-
-	return h.signaler.SignalAnswer(answer, h.config.Key)
-}
-
-func (h *Handshaker) buildOfferAnswer() OfferAnswer {
-	answer := OfferAnswer{
-		WgListenPort:    h.config.LocalWgPort,
-		Version:         version.NetbirdVersion(),
-		RosenpassPubKey: h.config.RosenpassConfig.PubKey,
-		RosenpassAddr:   h.config.RosenpassConfig.Addr,
-	}
-
-	if h.ice != nil && h.RemoteICESupported() {
-		uFrag, pwd := h.ice.GetLocalUserCredentials()
-		sid := h.ice.SessionID()
-		answer.IceCredentials = IceCredentials{uFrag, pwd}
-		answer.SessionID = &sid
-	}
-
-	if addr, ip, err := h.relay.RelayInstanceAddress(); err == nil {
-		answer.RelaySrvAddress = addr
-		answer.RelaySrvIP = ip
-	}
-
-	return answer
-}
-
-func (h *Handshaker) updateRemoteICEState(offer *OfferAnswer) {
-	hasICE := offer.hasICECredentials()
-	prev := h.remoteICESupported.Swap(hasICE)
-	if prev != hasICE {
-		if hasICE {
-			h.log.Infof("remote peer started sending ICE credentials")
-		} else {
-			h.log.Infof("remote peer stopped sending ICE credentials")
-			if h.ice != nil {
-				h.ice.Close()
-			}
-		}
-	}
-}

client/internal/peer/handshaker_listener.go

@@ -1,62 +0,0 @@
-package peer
-
-import (
-	"sync"
-)
-
-type callbackFunc func(remoteOfferAnswer *OfferAnswer)
-
-func (oa *OfferAnswer) SessionIDString() string {
-	if oa.SessionID == nil {
-		return "unknown"
-	}
-	return oa.SessionID.String()
-}
-
-type AsyncOfferListener struct {
-	fn      callbackFunc
-	running bool
-	latest  *OfferAnswer
-	mu      sync.Mutex
-}
-
-func NewAsyncOfferListener(fn callbackFunc) *AsyncOfferListener {
-	return &AsyncOfferListener{
-		fn: fn,
-	}
-}
-
-func (o *AsyncOfferListener) Notify(remoteOfferAnswer *OfferAnswer) {
-	o.mu.Lock()
-	defer o.mu.Unlock()
-
-	// Store the latest offer
-	o.latest = remoteOfferAnswer
-
-	// If already running, the running goroutine will pick up this latest value
-	if o.running {
-		return
-	}
-
-	// Start processing
-	o.running = true
-
-	// Process in a goroutine to avoid blocking the caller
-	go func(remoteOfferAnswer *OfferAnswer) {
-		for {
-			o.fn(remoteOfferAnswer)
-
-			o.mu.Lock()
-			if o.latest == nil {
-				// No more work to do
-				o.running = false
-				o.mu.Unlock()
-				return
-			}
-			remoteOfferAnswer = o.latest
-			// Clear the latest to mark it as being processed
-			o.latest = nil
-			o.mu.Unlock()
-		}
-	}(remoteOfferAnswer)
-}

client/internal/peer/handshaker_listener_test.go

@@ -1,39 +0,0 @@
-package peer
-
-import (
-	"testing"
-	"time"
-)
-
-func Test_newOfferListener(t *testing.T) {
-	dummyOfferAnswer := &OfferAnswer{}
-	runChan := make(chan struct{}, 10)
-
-	longRunningFn := func(remoteOfferAnswer *OfferAnswer) {
-		time.Sleep(1 * time.Second)
-		runChan <- struct{}{}
-	}
-
-	hl := NewAsyncOfferListener(longRunningFn)
-
-	hl.Notify(dummyOfferAnswer)
-	hl.Notify(dummyOfferAnswer)
-	hl.Notify(dummyOfferAnswer)
-
-	// Wait for exactly 2 callbacks
-	for i := 0; i < 2; i++ {
-		select {
-		case <-runChan:
-		case <-time.After(3 * time.Second):
-			t.Fatal("Timeout waiting for callback")
-		}
-	}
-
-	// Verify no additional callbacks happen
-	select {
-	case <-runChan:
-		t.Fatal("Unexpected additional callback")
-	case <-time.After(100 * time.Millisecond):
-		t.Log("Correctly received exactly 2 callbacks")
-	}
-}

client/internal/peer/ice/session_id.go

@@ -1,4 +1,4 @@
-package peer
+package ice
 
 import (
 	"crypto/rand"
@@ -9,26 +9,26 @@ import (
 
 const sessionIDSize = 5
 
-type ICESessionID string
+type SessionID string
 
-// NewICESessionID generates a new session ID for distinguishing sessions
-func NewICESessionID() (ICESessionID, error) {
+// NewSessionID generates a new session ID for distinguishing sessions
+func NewSessionID() (SessionID, error) {
 	b := make([]byte, sessionIDSize)
 	if _, err := io.ReadFull(rand.Reader, b); err != nil {
 		return "", fmt.Errorf("failed to generate session ID: %w", err)
 	}
-	return ICESessionID(hex.EncodeToString(b)), nil
+	return SessionID(hex.EncodeToString(b)), nil
 }
 
-func ICESessionIDFromBytes(b []byte) (ICESessionID, error) {
+func SessionIDFromBytes(b []byte) (SessionID, error) {
 	if len(b) != sessionIDSize {
 		return "", fmt.Errorf("invalid session ID length: %d", len(b))
 	}
-	return ICESessionID(hex.EncodeToString(b)), nil
+	return SessionID(hex.EncodeToString(b)), nil
 }
 
 // Bytes returns the raw bytes of the session ID for protobuf serialization
-func (id ICESessionID) Bytes() ([]byte, error) {
+func (id SessionID) Bytes() ([]byte, error) {
 	if len(id) == 0 {
 		return nil, fmt.Errorf("ICE session ID is empty")
 	}
@@ -42,6 +42,6 @@ func (id ICESessionID) Bytes() ([]byte, error) {
 	return b, nil
 }
 
-func (id ICESessionID) String() string {
+func (id SessionID) String() string {
 	return string(id)
 }

client/internal/peer/iface.go

@@ -1,22 +0,0 @@
-package peer
-
-import (
-	"net"
-	"net/netip"
-	"time"
-
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-
-	"github.com/netbirdio/netbird/client/iface/configurer"
-	"github.com/netbirdio/netbird/client/iface/wgaddr"
-	"github.com/netbirdio/netbird/client/iface/wgproxy"
-)
-
-type WGIface interface {
-	UpdatePeer(peerKey string, allowedIps []netip.Prefix, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error
-	RemovePeer(peerKey string) error
-	GetStats() (map[string]configurer.WGStats, error)
-	GetProxy() wgproxy.Proxy
-	Address() wgaddr.Address
-	RemoveEndpointAddress(key string) error
-}

client/internal/peer/listener.go

@@ -1,11 +0,0 @@
-package peer
-
-// Listener is a callback type about the NetBird network connection state
-type Listener interface {
-	OnConnected()
-	OnDisconnected()
-	OnConnecting()
-	OnDisconnecting()
-	OnAddressChanged(string, string)
-	OnPeersListChanged(int)
-}

client/internal/peer/mailbox.go

@@ -0,0 +1,116 @@
+package peer
+
+import (
+	"sync"
+)
+
+// maxQueuedCandidates bounds the remote candidate queue; on overflow the
+// oldest candidate is dropped. Lost candidates are recovered by the next
+// offer exchange triggered by the guard.
+const maxQueuedCandidates = 128
+
+// mailbox is the coalescing inbox of the Conn event loop. Posting never
+// blocks. Per message kind either the latest value wins (offer, answer,
+// guard tick), the values queue in bounded FIFO order (candidates) or in
+// unbounded FIFO order (lifecycle and transport state changes, which are
+// low-volume and must not be lost). A new offer flushes the queued
+// candidates because they belong to the superseded session.
+type mailbox struct {
+	mu     sync.Mutex
+	closed bool
+
+	lifecycle  []event
+	transport  []event
+	offer      *evRemoteOffer
+	answer     *evRemoteAnswer
+	candidates []evRemoteCandidate
+	guardTick  bool
+
+	wake chan struct{}
+}
+
+func newMailbox() *mailbox {
+	return &mailbox{
+		wake: make(chan struct{}, 1),
+	}
+}
+
+// post stores the event and wakes the loop. It reports false if the mailbox
+// is already closed and the event was not accepted.
+func (m *mailbox) post(ev event) bool {
+	m.mu.Lock()
+	if m.closed {
+		m.mu.Unlock()
+		return false
+	}
+
+	switch e := ev.(type) {
+	case evClose:
+		m.lifecycle = append(m.lifecycle, e)
+	case evRemoteOffer:
+		m.offer = &e
+		m.candidates = nil
+	case evRemoteAnswer:
+		m.answer = &e
+	case evRemoteCandidate:
+		if len(m.candidates) >= maxQueuedCandidates {
+			m.candidates = m.candidates[1:]
+		}
+		m.candidates = append(m.candidates, e)
+	case evGuardTick:
+		m.guardTick = true
+	default:
+		m.transport = append(m.transport, ev)
+	}
+	m.mu.Unlock()
+
+	select {
+	case m.wake <- struct{}{}:
+	default:
+	}
+	return true
+}
+
+// drain returns the pending events in processing order: lifecycle first,
+// then transport state changes, the coalesced offer and answer, the queued
+// candidates and finally the guard tick.
+func (m *mailbox) drain() []event {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	return m.drainLocked()
+}
+
+// closeAndDrain marks the mailbox closed so further posts are rejected and
+// returns the events that were still pending.
+func (m *mailbox) closeAndDrain() []event {
+	m.mu.Lock()
+	defer m.mu.Unlock()
+	m.closed = true
+	return m.drainLocked()
+}
+
+func (m *mailbox) drainLocked() []event {
+	evs := make([]event, 0, len(m.lifecycle)+len(m.transport)+len(m.candidates)+3)
+	evs = append(evs, m.lifecycle...)
+	evs = append(evs, m.transport...)
+	if m.offer != nil {
+		evs = append(evs, *m.offer)
+	}
+	if m.answer != nil {
+		evs = append(evs, *m.answer)
+	}
+	for _, c := range m.candidates {
+		evs = append(evs, c)
+	}
+	if m.guardTick {
+		evs = append(evs, evGuardTick{})
+	}
+
+	m.lifecycle = nil
+	m.transport = nil
+	m.offer = nil
+	m.answer = nil
+	m.candidates = nil
+	m.guardTick = false
+	return evs
+}

client/internal/peer/mailbox_test.go

@@ -0,0 +1,128 @@
+package peer
+
+import (
+	"testing"
+
+	"github.com/netbirdio/netbird/client/internal/peer/signaling"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func TestMailbox_OfferCoalescing(t *testing.T) {
+	mb := newMailbox()
+
+	require.True(t, mb.post(evRemoteOffer{offer: signaling.OfferAnswer{WgListenPort: 1}}))
+	require.True(t, mb.post(evRemoteOffer{offer: signaling.OfferAnswer{WgListenPort: 2}}))
+	require.True(t, mb.post(evRemoteOffer{offer: signaling.OfferAnswer{WgListenPort: 3}}))
+
+	evs := mb.drain()
+	require.Len(t, evs, 1, "consecutive offers must coalesce to a single event")
+	offer, ok := evs[0].(evRemoteOffer)
+	require.True(t, ok, "coalesced event must be an offer")
+	assert.Equal(t, 3, offer.offer.WgListenPort, "the newest offer must win")
+}
+
+func TestMailbox_OfferFlushesCandidates(t *testing.T) {
+	mb := newMailbox()
+
+	require.True(t, mb.post(evRemoteCandidate{}))
+	require.True(t, mb.post(evRemoteCandidate{}))
+	require.True(t, mb.post(evRemoteOffer{offer: signaling.OfferAnswer{}}))
+
+	evs := mb.drain()
+	require.Len(t, evs, 1, "candidates of the superseded session must be flushed")
+	_, ok := evs[0].(evRemoteOffer)
+	assert.True(t, ok, "only the offer must remain after the flush")
+}
+
+func TestMailbox_CandidatesKeepOrderAfterOffer(t *testing.T) {
+	mb := newMailbox()
+
+	require.True(t, mb.post(evRemoteOffer{offer: signaling.OfferAnswer{}}))
+	require.True(t, mb.post(evRemoteCandidate{haRoutes: nil}))
+	require.True(t, mb.post(evRemoteCandidate{haRoutes: nil}))
+
+	evs := mb.drain()
+	require.Len(t, evs, 3)
+	_, ok := evs[0].(evRemoteOffer)
+	assert.True(t, ok, "offer must be processed before the candidates")
+	for _, ev := range evs[1:] {
+		_, ok := ev.(evRemoteCandidate)
+		assert.True(t, ok, "candidates posted after the offer must survive")
+	}
+}
+
+func TestMailbox_CandidateQueueBounded(t *testing.T) {
+	mb := newMailbox()
+
+	for i := 0; i < maxQueuedCandidates+10; i++ {
+		require.True(t, mb.post(evRemoteCandidate{}))
+	}
+
+	evs := mb.drain()
+	assert.Len(t, evs, maxQueuedCandidates, "candidate queue must stay bounded")
+}
+
+func TestMailbox_DrainOrder(t *testing.T) {
+	mb := newMailbox()
+
+	require.True(t, mb.post(evGuardTick{}))
+	require.True(t, mb.post(evRemoteAnswer{answer: signaling.OfferAnswer{}}))
+	require.True(t, mb.post(evRemoteOffer{offer: signaling.OfferAnswer{}}))
+	require.True(t, mb.post(evRelayDown{}))
+	require.True(t, mb.post(evICEDown{sessionChanged: true}))
+	require.True(t, mb.post(evClose{}))
+
+	evs := mb.drain()
+	require.Len(t, evs, 6)
+
+	_, ok := evs[0].(evClose)
+	assert.True(t, ok, "lifecycle events must come first")
+	_, ok = evs[1].(evRelayDown)
+	assert.True(t, ok, "transport events must keep FIFO order")
+	_, ok = evs[2].(evICEDown)
+	assert.True(t, ok, "transport events must keep FIFO order")
+	_, ok = evs[3].(evRemoteOffer)
+	assert.True(t, ok, "offer must come after transport events")
+	_, ok = evs[4].(evRemoteAnswer)
+	assert.True(t, ok, "answer must come after the offer")
+	_, ok = evs[5].(evGuardTick)
+	assert.True(t, ok, "guard tick must come last")
+}
+
+func TestMailbox_GuardTickCoalesced(t *testing.T) {
+	mb := newMailbox()
+
+	require.True(t, mb.post(evGuardTick{}))
+	require.True(t, mb.post(evGuardTick{}))
+	require.True(t, mb.post(evGuardTick{}))
+
+	evs := mb.drain()
+	assert.Len(t, evs, 1, "guard ticks must coalesce to a single event")
+}
+
+func TestMailbox_PostAfterCloseRejected(t *testing.T) {
+	mb := newMailbox()
+
+	require.True(t, mb.post(evRelayDown{}))
+	leftovers := mb.closeAndDrain()
+	assert.Len(t, leftovers, 1, "pending events must be returned on close")
+
+	assert.False(t, mb.post(evRelayDown{}), "posts must be rejected after close")
+	assert.Empty(t, mb.drain(), "no events must remain after close")
+}
+
+func TestMailbox_WakeSignal(t *testing.T) {
+	mb := newMailbox()
+
+	require.True(t, mb.post(evRelayDown{}))
+	require.True(t, mb.post(evGuardTick{}))
+
+	select {
+	case <-mb.wake:
+	default:
+		t.Fatal("wake signal must be pending after posts")
+	}
+
+	assert.Len(t, mb.drain(), 2, "a single wake must deliver all pending events")
+}

client/internal/peer/metricsstages/metrics_saver.go

@@ -1,4 +1,4 @@
-package peer
+package metricsstages
 
 import (
 	"sync"

client/internal/peer/metricsstages/metrics_saver_test.go

@@ -1,4 +1,4 @@
-package peer
+package metricsstages
 
 import (
 	"testing"

client/internal/peer/signaling/handshaker.go

@@ -0,0 +1,189 @@
+package signaling
+
+import (
+	"errors"
+	"net/netip"
+	"sync"
+	"sync/atomic"
+
+	log "github.com/sirupsen/logrus"
+
+	icemaker "github.com/netbirdio/netbird/client/internal/peer/ice"
+	relayClient "github.com/netbirdio/netbird/shared/relay/client"
+	"github.com/netbirdio/netbird/version"
+)
+
+var (
+	ErrSignalIsNotReady = errors.New("signal is not ready")
+)
+
+// IceCredentials ICE protocol credentials struct
+type IceCredentials struct {
+	UFrag string
+	Pwd   string
+}
+
+// OfferAnswer represents a session establishment offer or answer
+type OfferAnswer struct {
+	IceCredentials IceCredentials
+	// WgListenPort is a remote WireGuard listen port.
+	// This field is used when establishing a direct WireGuard connection without any proxy.
+	// We can set the remote peer's endpoint with this port.
+	WgListenPort int
+
+	// Version of NetBird Agent
+	Version string
+	// RosenpassPubKey is the Rosenpass public key of the remote peer when receiving this message
+	// This value is the local Rosenpass server public key when sending the message
+	RosenpassPubKey []byte
+	// RosenpassAddr is the Rosenpass server address (IP:port) of the remote peer when receiving this message
+	// This value is the local Rosenpass server address when sending the message
+	RosenpassAddr string
+
+	// relay server address
+	RelaySrvAddress string
+	// RelaySrvIP is the IP the remote peer is connected to on its
+	// relay server. Used as a dial target if DNS for RelaySrvAddress
+	// fails. Zero value if the peer did not advertise an IP.
+	RelaySrvIP netip.Addr
+	// SessionID is the unique identifier of the session, used to discard old messages
+	SessionID *icemaker.SessionID
+}
+
+func (o *OfferAnswer) HasICECredentials() bool {
+	return o.IceCredentials.UFrag != "" && o.IceCredentials.Pwd != ""
+}
+
+func (o *OfferAnswer) SessionIDString() string {
+	if o.SessionID == nil {
+		return "unknown"
+	}
+	return o.SessionID.String()
+}
+
+// Config carries the peer-specific values the Handshaker embeds into offers
+// and answers.
+type Config struct {
+	Key             string
+	LocalWgPort     int
+	RosenpassPubKey []byte
+	RosenpassAddr   string
+}
+
+// Credentials are the local ICE credentials and session id the Handshaker embeds in offers.
+type Credentials struct {
+	UFrag     string
+	Pwd       string
+	SessionID icemaker.SessionID
+}
+
+// ICEWorker is the subset of the ICE worker the Handshaker needs to build offers.
+type ICEWorker interface {
+	Credentials() Credentials
+	Close()
+}
+
+// Handshaker keeps the signaling protocol logic: building and sending offers
+// and answers and tracking whether the remote peer supports ICE. Incoming
+// message processing is driven by the Conn event loop.
+type Handshaker struct {
+	mu           sync.Mutex
+	log          *log.Entry
+	config       Config
+	signaler     *Signaler
+	ice          ICEWorker
+	relayManager *relayClient.Manager
+
+	// remoteICESupported tracks whether the remote peer includes ICE credentials in its offers/answers.
+	// When false, the local side skips ICE dispatch and suppresses ICE credentials in responses.
+	remoteICESupported atomic.Bool
+}
+
+func NewHandshaker(log *log.Entry, config Config, signaler *Signaler, ice ICEWorker, relayManager *relayClient.Manager) *Handshaker {
+	h := &Handshaker{
+		log:          log,
+		config:       config,
+		signaler:     signaler,
+		ice:          ice,
+		relayManager: relayManager,
+	}
+	// assume remote supports ICE until we learn otherwise from received offers
+	h.remoteICESupported.Store(ice != nil)
+	return h
+}
+
+func (h *Handshaker) RemoteICESupported() bool {
+	return h.remoteICESupported.Load()
+}
+
+func (h *Handshaker) SendOffer() error {
+	h.mu.Lock()
+	defer h.mu.Unlock()
+	return h.sendOffer()
+}
+
+func (h *Handshaker) SendAnswer() error {
+	h.mu.Lock()
+	defer h.mu.Unlock()
+	return h.sendAnswer()
+}
+
+// sendOffer prepares local user credentials and signals them to the remote peer
+func (h *Handshaker) sendOffer() error {
+	if !h.signaler.Ready() {
+		return ErrSignalIsNotReady
+	}
+
+	offer := h.buildOfferAnswer()
+	h.log.Debugf("sending offer with serial: %s", offer.SessionIDString())
+
+	return h.signaler.SignalOffer(offer, h.config.Key)
+}
+
+func (h *Handshaker) sendAnswer() error {
+	answer := h.buildOfferAnswer()
+	h.log.Debugf("sending answer with serial: %s", answer.SessionIDString())
+
+	return h.signaler.SignalAnswer(answer, h.config.Key)
+}
+
+func (h *Handshaker) buildOfferAnswer() OfferAnswer {
+	answer := OfferAnswer{
+		WgListenPort:    h.config.LocalWgPort,
+		Version:         version.NetbirdVersion(),
+		RosenpassPubKey: h.config.RosenpassPubKey,
+		RosenpassAddr:   h.config.RosenpassAddr,
+	}
+
+	if h.ice != nil && h.RemoteICESupported() {
+		creds := h.ice.Credentials()
+		answer.IceCredentials = IceCredentials{creds.UFrag, creds.Pwd}
+		sid := creds.SessionID
+		answer.SessionID = &sid
+	}
+
+	if addr, ip, err := h.relayManager.RelayInstanceAddress(); err == nil {
+		answer.RelaySrvAddress = addr
+		answer.RelaySrvIP = ip
+	}
+
+	return answer
+}
+
+// UpdateRemoteICEState refreshes the remote ICE support flag from a received
+// offer or answer and closes the ICE worker when the remote peer stopped
+// sending ICE credentials. Runs on the Conn event loop.
+func (h *Handshaker) UpdateRemoteICEState(offer *OfferAnswer) {
+	hasICE := offer.HasICECredentials()
+	prev := h.remoteICESupported.Swap(hasICE)
+	if prev != hasICE {
+		if hasICE {
+			h.log.Infof("remote peer started sending ICE credentials")
+		} else {
+			h.log.Infof("remote peer stopped sending ICE credentials")
+			if h.ice != nil {
+				h.ice.Close()
+			}
+		}
+	}
+}

client/internal/peer/signaling/signaler.go

@@ -1,4 +1,4 @@
-package peer
+package signaling
 
 import (
 	"github.com/pion/ice/v4"

client/internal/peer/state_dump/state_dump.go

@@ -1,4 +1,4 @@
-package peer
+package state_dump
 
 import (
 	"context"
@@ -6,11 +6,13 @@ import (
 	"time"
 
 	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/internal/peer/status"
 )
 
-type stateDump struct {
+type StateDump struct {
 	log    *log.Entry
-	status *Status
+	status *status.Recorder
 	key    string
 
 	sentOffer       int
@@ -26,15 +28,15 @@ type stateDump struct {
 	mu sync.Mutex
 }
 
-func newStateDump(key string, log *log.Entry, statusRecorder *Status) *stateDump {
-	return &stateDump{
+func NewStateDump(key string, log *log.Entry, statusRecorder *status.Recorder) *StateDump {
+	return &StateDump{
 		log:    log,
 		status: statusRecorder,
 		key:    key,
 	}
 }
 
-func (s *stateDump) Start(ctx context.Context) {
+func (s *StateDump) Start(ctx context.Context) {
 	ticker := time.NewTicker(10 * time.Minute)
 	defer ticker.Stop()
 
@@ -48,25 +50,25 @@ func (s *stateDump) Start(ctx context.Context) {
 	}
 }
 
-func (s *stateDump) RemoteOffer() {
+func (s *StateDump) RemoteOffer() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	s.remoteOffer++
 }
 
-func (s *stateDump) RemoteCandidate() {
+func (s *StateDump) RemoteCandidate() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	s.remoteCandidate++
 }
 
-func (s *stateDump) SendOffer() {
+func (s *StateDump) SendOffer() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	s.sentOffer++
 }
 
-func (s *stateDump) dumpState() {
+func (s *StateDump) dumpState() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 
@@ -80,41 +82,41 @@ func (s *stateDump) dumpState() {
 		status, s.sentOffer, s.remoteOffer, s.remoteAnswer, s.remoteCandidate, s.p2pConnected, s.switchToRelay, s.wgCheckSuccess, s.relayConnected, s.localProxies)
 }
 
-func (s *stateDump) RemoteAnswer() {
+func (s *StateDump) RemoteAnswer() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 	s.remoteAnswer++
 }
 
-func (s *stateDump) P2PConnected() {
+func (s *StateDump) P2PConnected() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 
 	s.p2pConnected++
 }
 
-func (s *stateDump) SwitchToRelay() {
+func (s *StateDump) SwitchToRelay() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 
 	s.switchToRelay++
 }
 
-func (s *stateDump) WGcheckSuccess() {
+func (s *StateDump) WGcheckSuccess() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 
 	s.wgCheckSuccess++
 }
 
-func (s *stateDump) RelayConnected() {
+func (s *StateDump) RelayConnected() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 
 	s.relayConnected++
 }
 
-func (s *stateDump) NewLocalProxy() {
+func (s *StateDump) NewLocalProxy() {
 	s.mu.Lock()
 	defer s.mu.Unlock()
 

client/internal/peer/status/conn_status.go

@@ -0,0 +1,31 @@
+package status
+
+import (
+	log "github.com/sirupsen/logrus"
+)
+
+const (
+	// StatusIdle indicate the peer is in disconnected state
+	StatusIdle ConnStatus = iota
+	// StatusConnecting indicate the peer is in connecting state
+	StatusConnecting
+	// StatusConnected indicate the peer is in connected state
+	StatusConnected
+)
+
+// ConnStatus describe the status of a peer's connection
+type ConnStatus int32
+
+func (s ConnStatus) String() string {
+	switch s {
+	case StatusConnecting:
+		return "Connecting"
+	case StatusConnected:
+		return "Connected"
+	case StatusIdle:
+		return "Idle"
+	default:
+		log.Errorf("unknown status: %d", s)
+		return "INVALID_PEER_CONNECTION_STATUS"
+	}
+}

client/internal/peer/status/conn_status_test.go

@@ -1,4 +1,4 @@
-package peer
+package status
 
 import (
 	"testing"

client/internal/peer/status/events.go

@@ -0,0 +1,48 @@
+package status
+
+import (
+	"slices"
+	"sync"
+
+	"github.com/netbirdio/netbird/client/proto"
+)
+
+type EventQueue struct {
+	maxSize int
+	events  []*proto.SystemEvent
+	mutex   sync.RWMutex
+}
+
+func NewEventQueue(size int) *EventQueue {
+	return &EventQueue{
+		maxSize: size,
+		events:  make([]*proto.SystemEvent, 0, size),
+	}
+}
+
+func (q *EventQueue) Add(event *proto.SystemEvent) {
+	q.mutex.Lock()
+	defer q.mutex.Unlock()
+
+	q.events = append(q.events, event)
+
+	if len(q.events) > q.maxSize {
+		q.events = q.events[len(q.events)-q.maxSize:]
+	}
+}
+
+func (q *EventQueue) GetAll() []*proto.SystemEvent {
+	q.mutex.RLock()
+	defer q.mutex.RUnlock()
+
+	return slices.Clone(q.events)
+}
+
+type EventSubscription struct {
+	id     string
+	events chan *proto.SystemEvent
+}
+
+func (s *EventSubscription) Events() <-chan *proto.SystemEvent {
+	return s.events
+}

client/internal/peer/status/full_status.go

@@ -0,0 +1,122 @@
+package status
+
+import (
+	"golang.org/x/exp/maps"
+	"google.golang.org/protobuf/types/known/durationpb"
+	"google.golang.org/protobuf/types/known/timestamppb"
+
+	"github.com/netbirdio/netbird/client/internal/relay"
+	"github.com/netbirdio/netbird/client/proto"
+)
+
+// FullStatus contains the full state held by the Recorder instance
+type FullStatus struct {
+	Peers                 []State
+	ManagementState       ManagementState
+	SignalState           SignalState
+	LocalPeerState        LocalPeerState
+	RosenpassState        RosenpassState
+	Relays                []relay.ProbeResult
+	NSGroupStates         []NSGroupState
+	NumOfForwardingRules  int
+	LazyConnectionEnabled bool
+	Events                []*proto.SystemEvent
+}
+
+// ToProto converts FullStatus to proto.FullStatus.
+func (fs FullStatus) ToProto() *proto.FullStatus {
+	pbFullStatus := proto.FullStatus{
+		ManagementState: &proto.ManagementState{},
+		SignalState:     &proto.SignalState{},
+		LocalPeerState:  &proto.LocalPeerState{},
+		Peers:           []*proto.PeerState{},
+	}
+
+	pbFullStatus.ManagementState.URL = fs.ManagementState.URL
+	pbFullStatus.ManagementState.Connected = fs.ManagementState.Connected
+	if err := fs.ManagementState.Error; err != nil {
+		pbFullStatus.ManagementState.Error = err.Error()
+	}
+
+	pbFullStatus.SignalState.URL = fs.SignalState.URL
+	pbFullStatus.SignalState.Connected = fs.SignalState.Connected
+	if err := fs.SignalState.Error; err != nil {
+		pbFullStatus.SignalState.Error = err.Error()
+	}
+
+	pbFullStatus.LocalPeerState.IP = fs.LocalPeerState.IP
+	pbFullStatus.LocalPeerState.Ipv6 = fs.LocalPeerState.IPv6
+	pbFullStatus.LocalPeerState.PubKey = fs.LocalPeerState.PubKey
+	pbFullStatus.LocalPeerState.KernelInterface = fs.LocalPeerState.KernelInterface
+	pbFullStatus.LocalPeerState.Fqdn = fs.LocalPeerState.FQDN
+	pbFullStatus.LocalPeerState.WgPort = int32(fs.LocalPeerState.WgPort)
+	pbFullStatus.LocalPeerState.RosenpassPermissive = fs.RosenpassState.Permissive
+	pbFullStatus.LocalPeerState.RosenpassEnabled = fs.RosenpassState.Enabled
+	pbFullStatus.NumberOfForwardingRules = int32(fs.NumOfForwardingRules)
+	pbFullStatus.LazyConnectionEnabled = fs.LazyConnectionEnabled
+
+	pbFullStatus.LocalPeerState.Networks = maps.Keys(fs.LocalPeerState.Routes)
+
+	for _, peerState := range fs.Peers {
+		networks := maps.Keys(peerState.GetRoutes())
+
+		pbPeerState := &proto.PeerState{
+			IP:                         peerState.IP,
+			Ipv6:                       peerState.IPv6,
+			PubKey:                     peerState.PubKey,
+			ConnStatus:                 peerState.ConnStatus.String(),
+			ConnStatusUpdate:           timestamppb.New(peerState.ConnStatusUpdate),
+			Relayed:                    peerState.Relayed,
+			LocalIceCandidateType:      peerState.LocalIceCandidateType,
+			RemoteIceCandidateType:     peerState.RemoteIceCandidateType,
+			LocalIceCandidateEndpoint:  peerState.LocalIceCandidateEndpoint,
+			RemoteIceCandidateEndpoint: peerState.RemoteIceCandidateEndpoint,
+			RelayAddress:               peerState.RelayServerAddress,
+			Fqdn:                       peerState.FQDN,
+			LastWireguardHandshake:     timestamppb.New(peerState.LastWireguardHandshake),
+			BytesRx:                    peerState.BytesRx,
+			BytesTx:                    peerState.BytesTx,
+			RosenpassEnabled:           peerState.RosenpassEnabled,
+			Networks:                   networks,
+			Latency:                    durationpb.New(peerState.Latency),
+			SshHostKey:                 peerState.SSHHostKey,
+		}
+		pbFullStatus.Peers = append(pbFullStatus.Peers, pbPeerState)
+	}
+
+	for _, relayState := range fs.Relays {
+		pbRelayState := &proto.RelayState{
+			URI:       relayState.URI,
+			Available: relayState.Err == nil,
+			Transport: relayState.Transport,
+		}
+		if err := relayState.Err; err != nil {
+			pbRelayState.Error = err.Error()
+		}
+		pbFullStatus.Relays = append(pbFullStatus.Relays, pbRelayState)
+	}
+
+	for _, dnsState := range fs.NSGroupStates {
+		var err string
+		if dnsState.Error != nil {
+			err = dnsState.Error.Error()
+		}
+
+		var servers []string
+		for _, server := range dnsState.Servers {
+			servers = append(servers, server.String())
+		}
+
+		pbDnsState := &proto.NSGroupState{
+			Servers: servers,
+			Domains: dnsState.Domains,
+			Enabled: dnsState.Enabled,
+			Error:   err,
+		}
+		pbFullStatus.DnsServers = append(pbFullStatus.DnsServers, pbDnsState)
+	}
+
+	pbFullStatus.Events = fs.Events
+
+	return &pbFullStatus
+}

client/internal/peer/status/notifier.go

@@ -1,4 +1,4 @@
-package peer
+package status
 
 import (
 	"sync"
@@ -11,6 +11,16 @@ const (
 	stateDisconnecting
 )
 
+// Listener is a callback type about the NetBird network connection state
+type Listener interface {
+	OnConnected()
+	OnDisconnected()
+	OnConnecting()
+	OnDisconnecting()
+	OnAddressChanged(string, string)
+	OnPeersListChanged(int)
+}
+
 type notifier struct {
 	serverStateLock    sync.Mutex
 	listenersLock      sync.Mutex

client/internal/peer/status/notifier_test.go

@@ -1,4 +1,4 @@
-package peer
+package status
 
 import (
 	"sync"

client/internal/peer/status/peer_state.go

@@ -0,0 +1,63 @@
+package status
+
+import (
+	"sync"
+	"time"
+
+	"golang.org/x/exp/maps"
+)
+
+// State contains the latest state of a peer
+type State struct {
+	Mux                        *sync.RWMutex
+	IP                         string
+	IPv6                       string
+	PubKey                     string
+	FQDN                       string
+	ConnStatus                 ConnStatus
+	ConnStatusUpdate           time.Time
+	Relayed                    bool
+	LocalIceCandidateType      string
+	RemoteIceCandidateType     string
+	LocalIceCandidateEndpoint  string
+	RemoteIceCandidateEndpoint string
+	RelayServerAddress         string
+	LastWireguardHandshake     time.Time
+	BytesTx                    int64
+	BytesRx                    int64
+	Latency                    time.Duration
+	RosenpassEnabled           bool
+	SSHHostKey                 []byte
+	routes                     map[string]struct{}
+}
+
+// AddRoute add a single route to routes map
+func (s *State) AddRoute(network string) {
+	s.Mux.Lock()
+	defer s.Mux.Unlock()
+	if s.routes == nil {
+		s.routes = make(map[string]struct{})
+	}
+	s.routes[network] = struct{}{}
+}
+
+// SetRoutes set state routes
+func (s *State) SetRoutes(routes map[string]struct{}) {
+	s.Mux.Lock()
+	defer s.Mux.Unlock()
+	s.routes = routes
+}
+
+// DeleteRoute removes a route from the network amp
+func (s *State) DeleteRoute(network string) {
+	s.Mux.Lock()
+	defer s.Mux.Unlock()
+	delete(s.routes, network)
+}
+
+// GetRoutes return routes map
+func (s *State) GetRoutes() map[string]struct{} {
+	s.Mux.RLock()
+	defer s.Mux.RUnlock()
+	return maps.Clone(s.routes)
+}

client/internal/peer/status/recorder_test.go

@@ -1,4 +1,4 @@
-package peer
+package status
 
 import (
 	"context"

client/internal/peer/status/route.go

@@ -1,4 +1,4 @@
-package peer
+package status
 
 import (
 	"net/netip"

client/internal/peer/status_alias.go

@@ -0,0 +1,36 @@
+package peer
+
+import "github.com/netbirdio/netbird/client/internal/peer/status"
+
+// Transitional aliases re-exporting the peer status recorder from its own
+// package. Callers are being migrated to reference the status package
+// directly; these aliases will be removed once the migration completes.
+type (
+	Status                   = status.Recorder
+	State                    = status.State
+	ConnStatus               = status.ConnStatus
+	FullStatus               = status.FullStatus
+	RouterState              = status.RouterState
+	LocalPeerState           = status.LocalPeerState
+	SignalState              = status.SignalState
+	ManagementState          = status.ManagementState
+	RosenpassState           = status.RosenpassState
+	NSGroupState             = status.NSGroupState
+	ResolvedDomainInfo       = status.ResolvedDomainInfo
+	StatusChangeSubscription = status.StatusChangeSubscription
+	EventQueue               = status.EventQueue
+	EventSubscription        = status.EventSubscription
+	WGIfaceStatus            = status.WGIfaceStatus
+	Listener                 = status.Listener
+	EventListener            = status.EventListener
+)
+
+const (
+	StatusIdle       = status.StatusIdle
+	StatusConnecting = status.StatusConnecting
+	StatusConnected  = status.StatusConnected
+)
+
+var (
+	NewRecorder = status.NewRecorder
+)

client/internal/peer/wg_watcher/wg_watcher.go

@@ -1,4 +1,4 @@
-package peer
+package wg_watcher
 
 import (
 	"context"
@@ -8,6 +8,7 @@ import (
 	log "github.com/sirupsen/logrus"
 
 	"github.com/netbirdio/netbird/client/iface/configurer"
+	"github.com/netbirdio/netbird/client/internal/peer/state_dump"
 )
 
 const (
@@ -29,7 +30,7 @@ type WGWatcher struct {
 	log           *log.Entry
 	wgIfaceStater WGInterfaceStater
 	peerKey       string
-	stateDump     *stateDump
+	stateDump     *state_dump.StateDump
 
 	// initialHandshake is not thread-safe; never call PrepareInitialHandshake and EnableWgWatcher concurrently.
 	initialHandshake time.Time
@@ -37,7 +38,7 @@ type WGWatcher struct {
 	resetCh chan struct{}
 }
 
-func NewWGWatcher(log *log.Entry, wgIfaceStater WGInterfaceStater, peerKey string, stateDump *stateDump) *WGWatcher {
+func NewWGWatcher(log *log.Entry, wgIfaceStater WGInterfaceStater, peerKey string, stateDump *state_dump.StateDump) *WGWatcher {
 	return &WGWatcher{
 		log:           log,
 		wgIfaceStater: wgIfaceStater,

client/internal/peer/wg_watcher/wg_watcher_test.go

@@ -1,4 +1,4 @@
-package peer
+package wg_watcher
 
 import (
 	"context"
@@ -9,6 +9,8 @@ import (
 	log "github.com/sirupsen/logrus"
 
 	"github.com/netbirdio/netbird/client/iface/configurer"
+	"github.com/netbirdio/netbird/client/internal/peer/state_dump"
+	"github.com/netbirdio/netbird/client/internal/peer/status"
 )
 
 type MocWgIface struct {
@@ -56,7 +58,7 @@ func TestWGWatcher_CheckSuccessCallback(t *testing.T) {
 	// platforms with coarse clock resolution (Windows), where two time.Now() calls
 	// microseconds apart can return the same instant and read as a timed-out handshake.
 	stats := &mockHandshakeStats{handshake: time.Now().Add(-time.Hour)}
-	watcher := NewWGWatcher(mlog, stats, "", newStateDump("peer", mlog, &Status{}))
+	watcher := NewWGWatcher(mlog, stats, "", state_dump.NewStateDump("peer", mlog, &status.Recorder{}))
 
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
@@ -65,14 +67,18 @@ func TestWGWatcher_CheckSuccessCallback(t *testing.T) {
 
 	firstHandshake := make(chan struct{}, 1)
 	checkSuccess := make(chan struct{}, 1)
-	go watcher.EnableWgWatcher(ctx, time.Now(), func() {}, func(when time.Time) {
-		firstHandshake <- struct{}{}
-	}, func() {
-		select {
-		case checkSuccess <- struct{}{}:
-		default:
-		}
-	})
+	watcherDone := make(chan struct{})
+	go func() {
+		defer close(watcherDone)
+		watcher.EnableWgWatcher(ctx, time.Now(), func() {}, func(when time.Time) {
+			firstHandshake <- struct{}{}
+		}, func() {
+			select {
+			case checkSuccess <- struct{}{}:
+			default:
+			}
+		})
+	}()
 
 	stats.advance()
 
@@ -87,6 +93,11 @@ func TestWGWatcher_CheckSuccessCallback(t *testing.T) {
 		t.Errorf("first-handshake callback must not fire for a non-zero baseline")
 	default:
 	}
+
+	// Wait for the watcher goroutine to exit so it cannot race with other
+	// tests mutating the package-level check timing variables.
+	cancel()
+	<-watcherDone
 }
 
 func TestWGWatcher_EnableWgWatcher(t *testing.T) {
@@ -95,7 +106,7 @@ func TestWGWatcher_EnableWgWatcher(t *testing.T) {
 
 	mlog := log.WithField("peer", "tet")
 	mocWgIface := &MocWgIface{}
-	watcher := NewWGWatcher(mlog, mocWgIface, "", newStateDump("peer", mlog, &Status{}))
+	watcher := NewWGWatcher(mlog, mocWgIface, "", state_dump.NewStateDump("peer", mlog, &status.Recorder{}))
 
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
@@ -127,7 +138,7 @@ func TestWGWatcher_ReEnable(t *testing.T) {
 
 	mlog := log.WithField("peer", "tet")
 	mocWgIface := &MocWgIface{}
-	watcher := NewWGWatcher(mlog, mocWgIface, "", newStateDump("peer", mlog, &Status{}))
+	watcher := NewWGWatcher(mlog, mocWgIface, "", state_dump.NewStateDump("peer", mlog, &status.Recorder{}))
 
 	ctx, cancel := context.WithCancel(context.Background())
 	watcher.PrepareInitialHandshake()

client/internal/peer/worker/priority.go

@@ -1,4 +1,4 @@
-package conntype
+package worker
 
 import (
 	"fmt"

client/internal/peer/worker/worker_ice.go

@@ -1,4 +1,4 @@
-package peer
+package worker
 
 import (
 	"context"
@@ -13,8 +13,9 @@ import (
 
 	"github.com/netbirdio/netbird/client/iface"
 	"github.com/netbirdio/netbird/client/iface/udpmux"
-	"github.com/netbirdio/netbird/client/internal/peer/conntype"
 	icemaker "github.com/netbirdio/netbird/client/internal/peer/ice"
+	"github.com/netbirdio/netbird/client/internal/peer/signaling"
+	"github.com/netbirdio/netbird/client/internal/peer/status"
 	"github.com/netbirdio/netbird/client/internal/portforward"
 	"github.com/netbirdio/netbird/client/internal/stdnet"
 	"github.com/netbirdio/netbird/route"
@@ -32,57 +33,68 @@ type ICEConnInfo struct {
 	RelayedOnLocal             bool
 }
 
-type WorkerICE struct {
-	ctx               context.Context
-	log               *log.Entry
-	config            ConnConfig
-	conn              *Conn
-	signaler          *Signaler
-	iFaceDiscover     stdnet.ExternalIFaceDiscover
-	statusRecorder    *Status
-	hasRelayOnLocally bool
+type ICEDependencies struct {
+	Signaler           *signaling.Signaler
+	IFaceDiscover      stdnet.ExternalIFaceDiscover
+	StatusRecorder     *status.Recorder
+	PortForwardManager *portforward.Manager
+}
+
+type ICE struct {
+	log                *log.Entry
+	key                string
+	iceConfig          icemaker.Config
+	isController       bool
+	onConnReady        func(priority ConnPriority, iceConnInfo ICEConnInfo)
+	onStatusDisconnect func(sessionChanged bool)
+	signaler           *signaling.Signaler
+	iFaceDiscover      stdnet.ExternalIFaceDiscover
+	statusRecorder     *status.Recorder
+	portForwardManager *portforward.Manager
+	hasRelayOnLocally  bool
 
 	agent             *icemaker.ThreadSafeAgent
 	agentDialerCancel context.CancelFunc
 	agentConnecting   bool      // while it is true, drop all incoming offers
 	lastSuccess       time.Time // with this avoid the too frequent ICE agent recreation
+	// connectedAgent is the agent whose connection was last reported ready; guarded by muxAgent
+	connectedAgent *icemaker.ThreadSafeAgent
 	// remoteSessionID represents the peer's session identifier from the latest remote offer.
-	remoteSessionID ICESessionID
+	remoteSessionID icemaker.SessionID
 	// sessionID is used to track the current session ID of the ICE agent
 	// increase by one when disconnecting the agent
 	// with it the remote peer can discard the already deprecated offer/answer
 	// Without it the remote peer may recreate a workable ICE connection
-	sessionID            ICESessionID
+	sessionID            icemaker.SessionID
 	remoteSessionChanged bool
 	muxAgent             sync.Mutex
 
 	localUfrag string
 	localPwd   string
 
-	// we record the last known state of the ICE agent to avoid duplicate on disconnected events
-	lastKnownState ice.ConnectionState
-
 	// portForwardAttempted tracks if we've already tried port forwarding this session
 	portForwardAttempted bool
 }
 
-func NewWorkerICE(ctx context.Context, log *log.Entry, config ConnConfig, conn *Conn, signaler *Signaler, ifaceDiscover stdnet.ExternalIFaceDiscover, statusRecorder *Status, hasRelayOnLocally bool) (*WorkerICE, error) {
-	sessionID, err := NewICESessionID()
+func NewICE(log *log.Entry, key string, iceConfig icemaker.Config, isController bool, onConnReady func(ConnPriority, ICEConnInfo), onStatusDisconnect func(bool), services ICEDependencies, hasRelayOnLocally bool) (*ICE, error) {
+	sessionID, err := icemaker.NewSessionID()
 	if err != nil {
 		return nil, err
 	}
 
-	w := &WorkerICE{
-		ctx:               ctx,
-		log:               log,
-		config:            config,
-		conn:              conn,
-		signaler:          signaler,
-		iFaceDiscover:     ifaceDiscover,
-		statusRecorder:    statusRecorder,
-		hasRelayOnLocally: hasRelayOnLocally,
-		lastKnownState:    ice.ConnectionStateDisconnected,
-		sessionID:         sessionID,
+	w := &ICE{
+		log:                log,
+		key:                key,
+		iceConfig:          iceConfig,
+		isController:       isController,
+		onConnReady:        onConnReady,
+		onStatusDisconnect: onStatusDisconnect,
+		signaler:           services.Signaler,
+		iFaceDiscover:      services.IFaceDiscover,
+		statusRecorder:     services.StatusRecorder,
+		portForwardManager: services.PortForwardManager,
+		hasRelayOnLocally:  hasRelayOnLocally,
+		sessionID:          sessionID,
 	}
 
 	localUfrag, localPwd, err := icemaker.GenerateICECredentials()
@@ -94,7 +106,7 @@ func NewWorkerICE(ctx context.Context, log *log.Entry, config ConnConfig, conn *
 	return w, nil
 }
 
-func (w *WorkerICE) OnNewOffer(remoteOfferAnswer *OfferAnswer) {
+func (w *ICE) OnNewOffer(ctx context.Context, remoteOfferAnswer *signaling.OfferAnswer) {
 	w.log.Debugf("OnNewOffer for ICE, serial: %s", remoteOfferAnswer.SessionIDString())
 	w.muxAgent.Lock()
 	defer w.muxAgent.Unlock()
@@ -118,7 +130,7 @@ func (w *WorkerICE) OnNewOffer(remoteOfferAnswer *OfferAnswer) {
 			}
 		}
 
-		sessionID, err := NewICESessionID()
+		sessionID, err := icemaker.NewSessionID()
 		if err != nil {
 			w.log.Errorf("failed to create new session ID: %s", err)
 		}
@@ -136,8 +148,8 @@ func (w *WorkerICE) OnNewOffer(remoteOfferAnswer *OfferAnswer) {
 	if remoteOfferAnswer.SessionID != nil {
 		w.log.Debugf("recreate ICE agent: %s / %s", w.sessionID, *remoteOfferAnswer.SessionID)
 	}
-	dialerCtx, dialerCancel := context.WithCancel(w.ctx)
-	agent, err := w.reCreateAgent(dialerCancel, preferredCandidateTypes)
+	dialerCtx, dialerCancel := context.WithCancel(ctx)
+	agent, err := w.reCreateAgent(ctx, dialerCancel, preferredCandidateTypes)
 	if err != nil {
 		w.log.Errorf("failed to recreate ICE Agent: %s", err)
 		return
@@ -151,14 +163,14 @@ func (w *WorkerICE) OnNewOffer(remoteOfferAnswer *OfferAnswer) {
 		w.remoteSessionID = ""
 	}
 
-	go w.connect(dialerCtx, agent, remoteOfferAnswer)
+	go w.connect(dialerCtx, dialerCancel, agent, remoteOfferAnswer)
 }
 
 // OnRemoteCandidate Handles ICE connection Candidate provided by the remote peer.
-func (w *WorkerICE) OnRemoteCandidate(candidate ice.Candidate, haRoutes route.HAMap) {
+func (w *ICE) OnRemoteCandidate(candidate ice.Candidate, haRoutes route.HAMap) {
 	w.muxAgent.Lock()
 	defer w.muxAgent.Unlock()
-	w.log.Debugf("OnRemoteCandidate from peer %s -> %s", w.config.Key, candidate.String())
+	w.log.Debugf("OnRemoteCandidate from peer %s -> %s", w.key, candidate.String())
 	if w.agent == nil {
 		w.log.Warnf("ICE Agent is not initialized yet")
 		return
@@ -185,18 +197,24 @@ func (w *WorkerICE) OnRemoteCandidate(candidate ice.Candidate, haRoutes route.HA
 	}
 }
 
-func (w *WorkerICE) GetLocalUserCredentials() (frag string, pwd string) {
-	return w.localUfrag, w.localPwd
+func (w *ICE) Credentials() signaling.Credentials {
+	w.muxAgent.Lock()
+	defer w.muxAgent.Unlock()
+	return signaling.Credentials{
+		UFrag:     w.localUfrag,
+		Pwd:       w.localPwd,
+		SessionID: w.sessionID,
+	}
 }
 
-func (w *WorkerICE) InProgress() bool {
+func (w *ICE) InProgress() bool {
 	w.muxAgent.Lock()
 	defer w.muxAgent.Unlock()
 
 	return w.agentConnecting
 }
 
-func (w *WorkerICE) Close() {
+func (w *ICE) Close() {
 	w.muxAgent.Lock()
 	defer w.muxAgent.Unlock()
 
@@ -212,10 +230,10 @@ func (w *WorkerICE) Close() {
 	w.agent = nil
 }
 
-func (w *WorkerICE) reCreateAgent(dialerCancel context.CancelFunc, candidates []ice.CandidateType) (*icemaker.ThreadSafeAgent, error) {
+func (w *ICE) reCreateAgent(ctx context.Context, dialerCancel context.CancelFunc, candidates []ice.CandidateType) (*icemaker.ThreadSafeAgent, error) {
 	w.portForwardAttempted = false
 
-	agent, err := icemaker.NewAgent(w.ctx, w.iFaceDiscover, w.config.ICEConfig, candidates, w.localUfrag, w.localPwd)
+	agent, err := icemaker.NewAgent(ctx, w.iFaceDiscover, w.iceConfig, candidates, w.localUfrag, w.localPwd)
 	if err != nil {
 		return nil, fmt.Errorf("create agent: %w", err)
 	}
@@ -237,7 +255,7 @@ func (w *WorkerICE) reCreateAgent(dialerCancel context.CancelFunc, candidates []
 	return agent, nil
 }
 
-func (w *WorkerICE) SessionID() ICESessionID {
+func (w *ICE) getSessionID() icemaker.SessionID {
 	w.muxAgent.Lock()
 	defer w.muxAgent.Unlock()
 
@@ -247,11 +265,11 @@ func (w *WorkerICE) SessionID() ICESessionID {
 // will block until connection succeeded
 // but it won't release if ICE Agent went into Disconnected or Failed state,
 // so we have to cancel it with the provided context once agent detected a broken connection
-func (w *WorkerICE) connect(ctx context.Context, agent *icemaker.ThreadSafeAgent, remoteOfferAnswer *OfferAnswer) {
+func (w *ICE) connect(ctx context.Context, dialerCancel context.CancelFunc, agent *icemaker.ThreadSafeAgent, remoteOfferAnswer *signaling.OfferAnswer) {
 	w.log.Debugf("gather candidates")
 	if err := agent.GatherCandidates(); err != nil {
 		w.log.Warnf("failed to gather candidates: %s", err)
-		w.closeAgent(agent, w.agentDialerCancel)
+		w.closeAgent(agent, dialerCancel)
 		return
 	}
 
@@ -259,19 +277,19 @@ func (w *WorkerICE) connect(ctx context.Context, agent *icemaker.ThreadSafeAgent
 	remoteConn, err := w.turnAgentDial(ctx, agent, remoteOfferAnswer)
 	if err != nil {
 		w.log.Debugf("failed to dial the remote peer: %s", err)
-		w.closeAgent(agent, w.agentDialerCancel)
+		w.closeAgent(agent, dialerCancel)
 		return
 	}
 	w.log.Debugf("agent dial succeeded")
 
 	pair, err := agent.GetSelectedCandidatePair()
 	if err != nil {
-		w.closeAgent(agent, w.agentDialerCancel)
+		w.closeAgent(agent, dialerCancel)
 		return
 	}
 	if pair == nil {
 		w.log.Warnf("selected candidate pair is nil, cannot proceed")
-		w.closeAgent(agent, w.agentDialerCancel)
+		w.closeAgent(agent, dialerCancel)
 		return
 	}
 
@@ -299,17 +317,22 @@ func (w *WorkerICE) connect(ctx context.Context, agent *icemaker.ThreadSafeAgent
 	}
 	w.log.Debugf("on ICE conn is ready to use")
 
-	w.log.Infof("connection succeeded with offer session: %s", remoteOfferAnswer.SessionIDString())
 	w.muxAgent.Lock()
+	if w.agent != agent {
+		w.muxAgent.Unlock()
+		w.log.Debugf("agent has been replaced during connect, dropping obsolete connection")
+		return
+	}
 	w.agentConnecting = false
 	w.lastSuccess = time.Now()
+	w.connectedAgent = agent
 	w.muxAgent.Unlock()
 
-	// todo: the potential problem is a race between the onConnectionStateChange
-	w.conn.onICEConnectionIsReady(selectedPriority(pair), ci)
+	w.log.Infof("connection succeeded with offer session: %s", remoteOfferAnswer.SessionIDString())
+	w.onConnReady(selectedPriority(pair), ci)
 }
 
-func (w *WorkerICE) closeAgent(agent *icemaker.ThreadSafeAgent, cancel context.CancelFunc) bool {
+func (w *ICE) closeAgent(agent *icemaker.ThreadSafeAgent, cancel context.CancelFunc) bool {
 	cancel()
 	if err := agent.Close(); err != nil {
 		w.log.Warnf("failed to close ICE agent: %s", err)
@@ -323,7 +346,7 @@ func (w *WorkerICE) closeAgent(agent *icemaker.ThreadSafeAgent, cancel context.C
 
 	if w.agent == agent {
 		// consider to remove from here and move to the OnNewOffer
-		sessionID, err := NewICESessionID()
+		sessionID, err := icemaker.NewSessionID()
 		if err != nil {
 			w.log.Errorf("failed to create new session ID: %s", err)
 		}
@@ -335,7 +358,7 @@ func (w *WorkerICE) closeAgent(agent *icemaker.ThreadSafeAgent, cancel context.C
 	return sessionChanged
 }
 
-func (w *WorkerICE) punchRemoteWGPort(pair *ice.CandidatePair, remoteWgPort int) {
+func (w *ICE) punchRemoteWGPort(pair *ice.CandidatePair, remoteWgPort int) {
 	// wait local endpoint configuration
 	time.Sleep(time.Second)
 	addr, err := net.ResolveUDPAddr("udp", net.JoinHostPort(pair.Remote.Address(), strconv.Itoa(remoteWgPort)))
@@ -344,7 +367,7 @@ func (w *WorkerICE) punchRemoteWGPort(pair *ice.CandidatePair, remoteWgPort int)
 		return
 	}
 
-	mux, ok := w.config.ICEConfig.UDPMuxSrflx.(*udpmux.UniversalUDPMuxDefault)
+	mux, ok := w.iceConfig.UDPMuxSrflx.(*udpmux.UniversalUDPMuxDefault)
 	if !ok {
 		w.log.Warn("invalid udp mux conversion")
 		return
@@ -357,7 +380,7 @@ func (w *WorkerICE) punchRemoteWGPort(pair *ice.CandidatePair, remoteWgPort int)
 
 // onICECandidate is a callback attached to an ICE Agent to receive new local connection candidates
 // and then signals them to the remote peer
-func (w *WorkerICE) onICECandidate(candidate ice.Candidate) {
+func (w *ICE) onICECandidate(candidate ice.Candidate) {
 	// nil means candidate gathering has been ended
 	if candidate == nil {
 		return
@@ -366,9 +389,9 @@ func (w *WorkerICE) onICECandidate(candidate ice.Candidate) {
 	// TODO: reported port is incorrect for CandidateTypeHost, makes understanding ICE use via logs confusing as port is ignored
 	w.log.Debugf("discovered local candidate %s", candidate.String())
 	go func() {
-		err := w.signaler.SignalICECandidate(candidate, w.config.Key)
+		err := w.signaler.SignalICECandidate(candidate, w.key)
 		if err != nil {
-			w.log.Errorf("failed signaling candidate to the remote peer %s %s", w.config.Key, err)
+			w.log.Errorf("failed signaling candidate to the remote peer %s %s", w.key, err)
 		}
 	}()
 
@@ -378,8 +401,8 @@ func (w *WorkerICE) onICECandidate(candidate ice.Candidate) {
 }
 
 // injectPortForwardedCandidate signals an additional candidate using the pre-created port mapping.
-func (w *WorkerICE) injectPortForwardedCandidate(srflxCandidate ice.Candidate) {
-	pfManager := w.conn.portForwardManager
+func (w *ICE) injectPortForwardedCandidate(srflxCandidate ice.Candidate) {
+	pfManager := w.portForwardManager
 	if pfManager == nil {
 		return
 	}
@@ -407,7 +430,7 @@ func (w *WorkerICE) injectPortForwardedCandidate(srflxCandidate ice.Candidate) {
 		forwardedCandidate.String(), mapping.InternalPort, mapping.ExternalPort, mapping.NATType, forwardedCandidate.Priority())
 
 	go func() {
-		if err := w.signaler.SignalICECandidate(forwardedCandidate, w.config.Key); err != nil {
+		if err := w.signaler.SignalICECandidate(forwardedCandidate, w.key); err != nil {
 			w.log.Errorf("signal port-forwarded candidate: %v", err)
 		}
 	}()
@@ -415,7 +438,7 @@ func (w *WorkerICE) injectPortForwardedCandidate(srflxCandidate ice.Candidate) {
 
 // createForwardedCandidate creates a new server reflexive candidate with the forwarded port.
 // It uses the NAT gateway's external IP with the forwarded port.
-func (w *WorkerICE) createForwardedCandidate(srflxCandidate ice.Candidate, mapping *portforward.Mapping) (ice.Candidate, error) {
+func (w *ICE) createForwardedCandidate(srflxCandidate ice.Candidate, mapping *portforward.Mapping) (ice.Candidate, error) {
 	var externalIP string
 	if mapping.ExternalIP != nil && !mapping.ExternalIP.IsUnspecified() {
 		externalIP = mapping.ExternalIP.String()
@@ -460,9 +483,9 @@ func (w *WorkerICE) createForwardedCandidate(srflxCandidate ice.Candidate, mappi
 	return candidate, nil
 }
 
-func (w *WorkerICE) onICESelectedCandidatePair(agent *icemaker.ThreadSafeAgent, c1, c2 ice.Candidate) {
+func (w *ICE) onICESelectedCandidatePair(agent *icemaker.ThreadSafeAgent, c1, c2 ice.Candidate) {
 	w.log.Debugf("selected candidate pair [local <-> remote] -> [%s <-> %s], peer %s", c1.String(), c2.String(),
-		w.config.Key)
+		w.key)
 
 	pairStat, ok := agent.GetSelectedCandidatePairStats()
 	if !ok {
@@ -471,14 +494,14 @@ func (w *WorkerICE) onICESelectedCandidatePair(agent *icemaker.ThreadSafeAgent,
 	}
 
 	duration := time.Duration(pairStat.CurrentRoundTripTime * float64(time.Second))
-	if err := w.statusRecorder.UpdateLatency(w.config.Key, duration); err != nil {
+	if err := w.statusRecorder.UpdateLatency(w.key, duration); err != nil {
 		w.log.Debugf("failed to update latency for peer: %s", err)
 		return
 	}
 }
 
-func (w *WorkerICE) logSuccessfulPaths(agent *icemaker.ThreadSafeAgent) {
-	sessionID := w.SessionID()
+func (w *ICE) logSuccessfulPaths(agent *icemaker.ThreadSafeAgent) {
+	sessionID := w.getSessionID()
 	stats := agent.GetCandidatePairsStats()
 	localCandidates, _ := agent.GetLocalCandidates()
 	remoteCandidates, _ := agent.GetRemoteCandidates()
@@ -508,32 +531,44 @@ func (w *WorkerICE) logSuccessfulPaths(agent *icemaker.ThreadSafeAgent) {
 	}
 }
 
-func (w *WorkerICE) onConnectionStateChange(agent *icemaker.ThreadSafeAgent, dialerCancel context.CancelFunc) func(ice.ConnectionState) {
+func (w *ICE) onConnectionStateChange(agent *icemaker.ThreadSafeAgent, dialerCancel context.CancelFunc) func(ice.ConnectionState) {
+	// per-agent state; pion delivers callbacks of one agent sequentially
+	var connected bool
 	return func(state ice.ConnectionState) {
 		w.log.Debugf("ICE ConnectionState has changed to %s", state.String())
 		switch state {
 		case ice.ConnectionStateConnected:
-			w.lastKnownState = ice.ConnectionStateConnected
+			connected = true
 			w.logSuccessfulPaths(agent)
-			return
 		case ice.ConnectionStateFailed, ice.ConnectionStateDisconnected, ice.ConnectionStateClosed:
 			// ice.ConnectionStateClosed happens when we recreate the agent. For the P2P to TURN switch important to
 			// notify the conn.onICEStateDisconnected changes to update the current used priority
 
 			sessionChanged := w.closeAgent(agent, dialerCancel)
 
-			if w.lastKnownState == ice.ConnectionStateConnected {
-				w.lastKnownState = ice.ConnectionStateDisconnected
-				w.conn.onICEStateDisconnected(sessionChanged)
+			if !connected {
+				return
 			}
-		default:
-			return
+			connected = false
+
+			w.muxAgent.Lock()
+			stale := w.connectedAgent != agent
+			if !stale {
+				w.connectedAgent = nil
+			}
+			w.muxAgent.Unlock()
+
+			if stale {
+				w.log.Debugf("suppress disconnected event of replaced ICE agent")
+				return
+			}
+			w.onStatusDisconnect(sessionChanged)
 		}
 	}
 }
 
-func (w *WorkerICE) turnAgentDial(ctx context.Context, agent *icemaker.ThreadSafeAgent, remoteOfferAnswer *OfferAnswer) (*ice.Conn, error) {
-	if isController(w.config) {
+func (w *ICE) turnAgentDial(ctx context.Context, agent *icemaker.ThreadSafeAgent, remoteOfferAnswer *signaling.OfferAnswer) (*ice.Conn, error) {
+	if w.isController {
 		return agent.Dial(ctx, remoteOfferAnswer.IceCredentials.UFrag, remoteOfferAnswer.IceCredentials.Pwd)
 	} else {
 		return agent.Accept(ctx, remoteOfferAnswer.IceCredentials.UFrag, remoteOfferAnswer.IceCredentials.Pwd)
@@ -595,10 +630,10 @@ func isRelayed(pair *ice.CandidatePair) bool {
 	return false
 }
 
-func selectedPriority(pair *ice.CandidatePair) conntype.ConnPriority {
+func selectedPriority(pair *ice.CandidatePair) ConnPriority {
 	if isRelayed(pair) {
-		return conntype.ICETurn
+		return ICETurn
 	} else {
-		return conntype.ICEP2P
+		return ICEP2P
 	}
 }

client/internal/peer/worker/worker_relay.go

@@ -1,4 +1,4 @@
-package peer
+package worker
 
 import (
 	"context"
@@ -10,22 +10,23 @@ import (
 
 	log "github.com/sirupsen/logrus"
 
+	"github.com/netbirdio/netbird/client/internal/peer/signaling"
 	relayClient "github.com/netbirdio/netbird/shared/relay/client"
 )
 
 type RelayConnInfo struct {
-	relayedConn     net.Conn
-	rosenpassPubKey []byte
-	rosenpassAddr   string
+	RelayedConn     net.Conn
+	RosenpassPubKey []byte
+	RosenpassAddr   string
 }
 
 type WorkerRelay struct {
-	peerCtx      context.Context
-	log          *log.Entry
-	isController bool
-	config       ConnConfig
-	conn         *Conn
-	relayManager *relayClient.Manager
+	log            *log.Entry
+	key            string
+	isController   bool
+	onConnReady    func(RelayConnInfo)
+	onDisconnected func()
+	relayManager   *relayClient.Manager
 
 	relayedConn net.Conn
 	relayLock   sync.Mutex
@@ -33,19 +34,19 @@ type WorkerRelay struct {
 	relaySupportedOnRemotePeer atomic.Bool
 }
 
-func NewWorkerRelay(ctx context.Context, log *log.Entry, ctrl bool, config ConnConfig, conn *Conn, relayManager *relayClient.Manager) *WorkerRelay {
+func NewWorkerRelay(log *log.Entry, key string, isController bool, onConnReady func(RelayConnInfo), onDisconnected func(), relayManager *relayClient.Manager) *WorkerRelay {
 	r := &WorkerRelay{
-		peerCtx:      ctx,
-		log:          log,
-		isController: ctrl,
-		config:       config,
-		conn:         conn,
-		relayManager: relayManager,
+		log:            log,
+		key:            key,
+		isController:   isController,
+		onConnReady:    onConnReady,
+		onDisconnected: onDisconnected,
+		relayManager:   relayManager,
 	}
 	return r
 }
 
-func (w *WorkerRelay) OnNewOffer(remoteOfferAnswer *OfferAnswer) {
+func (w *WorkerRelay) OnNewOffer(ctx context.Context, remoteOfferAnswer *signaling.OfferAnswer) {
 	if !w.isRelaySupported(remoteOfferAnswer) {
 		w.log.Infof("Relay is not supported by remote peer")
 		w.relaySupportedOnRemotePeer.Store(false)
@@ -66,7 +67,7 @@ func (w *WorkerRelay) OnNewOffer(remoteOfferAnswer *OfferAnswer) {
 		serverIP = remoteOfferAnswer.RelaySrvIP
 	}
 
-	relayedConn, err := w.relayManager.OpenConn(w.peerCtx, srv, w.config.Key, serverIP)
+	relayedConn, err := w.relayManager.OpenConn(ctx, srv, w.key, serverIP)
 	if err != nil {
 		if errors.Is(err, relayClient.ErrConnAlreadyExists) {
 			w.log.Debugf("handled offer by reusing existing relay connection")
@@ -88,10 +89,10 @@ func (w *WorkerRelay) OnNewOffer(remoteOfferAnswer *OfferAnswer) {
 	}
 
 	w.log.Debugf("peer conn opened via Relay: %s", srv)
-	go w.conn.onRelayConnectionIsReady(RelayConnInfo{
-		relayedConn:     relayedConn,
-		rosenpassPubKey: remoteOfferAnswer.RosenpassPubKey,
-		rosenpassAddr:   remoteOfferAnswer.RosenpassAddr,
+	w.onConnReady(RelayConnInfo{
+		RelayedConn:     relayedConn,
+		RosenpassPubKey: remoteOfferAnswer.RosenpassPubKey,
+		RosenpassAddr:   remoteOfferAnswer.RosenpassAddr,
 	})
 }
 
@@ -119,7 +120,7 @@ func (w *WorkerRelay) CloseConn() {
 	}
 }
 
-func (w *WorkerRelay) isRelaySupported(answer *OfferAnswer) bool {
+func (w *WorkerRelay) isRelaySupported(answer *signaling.OfferAnswer) bool {
 	if !w.relayManager.HasRelayAddress() {
 		return false
 	}
@@ -134,5 +135,5 @@ func (w *WorkerRelay) preferredRelayServer(myRelayAddress, remoteRelayAddress st
 }
 
 func (w *WorkerRelay) onRelayClientDisconnected() {
-	go w.conn.onRelayDisconnected()
+	w.onDisconnected()
 }

client/internal/peer/worker_status.go

@@ -1,4 +1,4 @@
-package worker
+package peer
 
 import (
 	"sync/atomic"
@@ -7,17 +7,17 @@ import (
 )
 
 const (
-	StatusDisconnected Status = iota
-	StatusConnected
+	WorkerStatusDisconnected WorkerStatus = iota
+	WorkerStatusConnected
 )
 
-type Status int32
+type WorkerStatus int32
 
-func (s Status) String() string {
+func (s WorkerStatus) String() string {
 	switch s {
-	case StatusDisconnected:
+	case WorkerStatusDisconnected:
 		return "Disconnected"
-	case StatusConnected:
+	case WorkerStatusConnected:
 		return "Connected"
 	default:
 		log.Errorf("unknown status: %d", s)
@@ -37,16 +37,16 @@ func NewAtomicStatus() *AtomicWorkerStatus {
 }
 
 // Get returns the current connection status
-func (acs *AtomicWorkerStatus) Get() Status {
-	return Status(acs.status.Load())
+func (acs *AtomicWorkerStatus) Get() WorkerStatus {
+	return WorkerStatus(acs.status.Load())
 }
 
 func (acs *AtomicWorkerStatus) SetConnected() {
-	acs.status.Store(int32(StatusConnected))
+	acs.status.Store(int32(WorkerStatusConnected))
 }
 
 func (acs *AtomicWorkerStatus) SetDisconnected() {
-	acs.status.Store(int32(StatusDisconnected))
+	acs.status.Store(int32(WorkerStatusDisconnected))
 }
 
 // String returns the string representation of the current status

client/ios/NetBirdSDK/client.go

@@ -14,7 +14,6 @@ import (
 
 	log "github.com/sirupsen/logrus"
 
-	nbAnonymize "github.com/netbirdio/netbird/client/anonymize"
 	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/client/internal/auth"
 	"github.com/netbirdio/netbird/client/internal/debug"
@@ -29,13 +28,6 @@ import (
 	types "github.com/netbirdio/netbird/upload-server/types"
 )
 
-// AnonymizeLevelDefault and AnonymizeLevelStrict are the accepted
-// anonymizeLevel values for DebugBundle.
-const (
-	AnonymizeLevelDefault = nbAnonymize.LevelDefaultString
-	AnonymizeLevelStrict  = nbAnonymize.LevelStrictString
-)
-
 // ConnectionListener export internal Listener for mobile
 type ConnectionListener interface {
 	peer.Listener
@@ -208,10 +200,8 @@ func (c *Client) Stop() {
 // DebugBundle generates a debug bundle, uploads it and returns the upload key.
 // It works with or without a running engine: when the engine is up it reuses
 // the live config, sync response and client metrics; otherwise it loads the
-// config from disk (or the preloaded tvOS config). anonymizeLevel is "default"
-// or "strict"; strict also anonymizes internal IP ranges, peer names, and
-// WireGuard public keys, and implies anonymize.
-func (c *Client) DebugBundle(anonymize bool, anonymizeLevel string) (string, error) {
+// config from disk (or the preloaded tvOS config).
+func (c *Client) DebugBundle(anonymize bool) (string, error) {
 	cfg, cc := c.stateSnapshot()
 
 	// If the engine hasn't been started, load config so we can reach management.
@@ -261,7 +251,6 @@ func (c *Client) DebugBundle(anonymize bool, anonymizeLevel string) (string, err
 		deps,
 		debug.BundleConfig{
 			Anonymize:         anonymize,
-			AnonymizeLevel:    nbAnonymize.ParseLevel(anonymizeLevel),
 			IncludeSystemInfo: true,
 		},
 	)

client/proto/daemon.pb.go

@@ -2781,11 +2781,6 @@ type DebugBundleRequest struct {
 	// untrusted TLS certificate. Restricted to privileged callers; for
 	// self-hosted upload servers.
 	UploadInsecure bool `protobuf:"varint,7,opt,name=uploadInsecure,proto3" json:"uploadInsecure,omitempty"`
-	// anonymizeLevel selects how much the anonymizer redacts: "default"
-	// (or empty) keeps internal IP ranges, "strict" also anonymizes them.
-	// Unknown values are treated as "strict". Only meaningful with anonymize;
-	// "strict" implies it.
-	AnonymizeLevel string `protobuf:"bytes,8,opt,name=anonymizeLevel,proto3" json:"anonymizeLevel,omitempty"`
 	unknownFields  protoimpl.UnknownFields
 	sizeCache      protoimpl.SizeCache
 }
@@ -2862,13 +2857,6 @@ func (x *DebugBundleRequest) GetUploadInsecure() bool {
 	return false
 }
 
-func (x *DebugBundleRequest) GetAnonymizeLevel() string {
-	if x != nil {
-		return x.AnonymizeLevel
-	}
-	return ""
-}
-
 type DebugBundleResponse struct {
 	state               protoimpl.MessageState `protogen:"open.v1"`
 	Path                string                 `protobuf:"bytes,1,opt,name=path,proto3" json:"path,omitempty"`
@@ -7265,7 +7253,7 @@ const file_daemon_proto_rawDesc = "" +
 	"\x12translatedHostname\x18\x04 \x01(\tR\x12translatedHostname\x128\n" +
 	"\x0etranslatedPort\x18\x05 \x01(\v2\x10.daemon.PortInfoR\x0etranslatedPort\"G\n" +
 	"\x17ForwardingRulesResponse\x12,\n" +
-	"\x05rules\x18\x01 \x03(\v2\x16.daemon.ForwardingRuleR\x05rules\"\x84\x02\n" +
+	"\x05rules\x18\x01 \x03(\v2\x16.daemon.ForwardingRuleR\x05rules\"\xdc\x01\n" +
 	"\x12DebugBundleRequest\x12\x1c\n" +
 	"\tanonymize\x18\x01 \x01(\bR\tanonymize\x12\x1e\n" +
 	"\n" +
@@ -7276,8 +7264,7 @@ const file_daemon_proto_rawDesc = "" +
 	"\n" +
 	"cliVersion\x18\x06 \x01(\tR\n" +
 	"cliVersion\x12&\n" +
-	"\x0euploadInsecure\x18\a \x01(\bR\x0euploadInsecure\x12&\n" +
-	"\x0eanonymizeLevel\x18\b \x01(\tR\x0eanonymizeLevel\"}\n" +
+	"\x0euploadInsecure\x18\a \x01(\bR\x0euploadInsecure\"}\n" +
 	"\x13DebugBundleResponse\x12\x12\n" +
 	"\x04path\x18\x01 \x01(\tR\x04path\x12 \n" +
 	"\vuploadedKey\x18\x02 \x01(\tR\vuploadedKey\x120\n" +

client/proto/daemon.proto

@@ -540,11 +540,6 @@ message DebugBundleRequest {
   // untrusted TLS certificate. Restricted to privileged callers; for
   // self-hosted upload servers.
   bool uploadInsecure = 7;
-  // anonymizeLevel selects how much the anonymizer redacts: "default"
-  // (or empty) keeps internal IP ranges, "strict" also anonymizes them.
-  // Unknown values are treated as "strict". Only meaningful with anonymize;
-  // "strict" implies it.
-  string anonymizeLevel = 8;
 }
 
 message DebugBundleResponse {

client/server/debug.go

@@ -16,7 +16,6 @@ import (
 	"google.golang.org/grpc/codes"
 	gstatus "google.golang.org/grpc/status"
 
-	"github.com/netbirdio/netbird/client/anonymize"
 	"github.com/netbirdio/netbird/client/internal/debug"
 	"github.com/netbirdio/netbird/client/internal/ipcauth"
 	"github.com/netbirdio/netbird/client/proto"
@@ -123,7 +122,6 @@ func (s *Server) generateDebugBundle(req *proto.DebugBundleRequest, uiOpener deb
 		},
 		debug.BundleConfig{
 			Anonymize:         req.GetAnonymize(),
-			AnonymizeLevel:    anonymize.ParseLevel(req.GetAnonymizeLevel()),
 			IncludeSystemInfo: req.GetSystemInfo(),
 			LogFileCount:      req.GetLogFileCount(),
 		},

client/ssh/server/command_execution_windows.go

@@ -243,7 +243,7 @@ func (s *Server) setUserEnvironmentVariables(envMap map[string]string, userProfi
 
 // prepareCommandEnv prepares environment variables for command execution on Windows
 func (s *Server) prepareCommandEnv(logger *log.Entry, localUser *user.User, session ssh.Session) []string {
-	username, domain := parseUsername(localUser.Username)
+	username, domain := s.parseUsername(localUser.Username)
 	userEnv, err := s.getUserEnvironment(logger, username, domain)
 	if err != nil {
 		log.Debugf("failed to get user environment for %s\\%s, using fallback: %v", domain, username, err)
@@ -383,7 +383,7 @@ func (s *Server) executeCommandWithPty(logger *log.Entry, session ssh.Session, _
 		return false
 	}
 
-	username, domain := parseUsername(localUser.Username)
+	username, domain := s.parseUsername(localUser.Username)
 	shell := getUserShell(localUser.Uid)
 
 	req := PtyExecutionRequest{

client/ssh/server/port_forwarding.go

@@ -133,12 +133,7 @@ func (s *Server) checkPrivilegedPortAccess(forwardType string, port uint32, resu
 		return nil
 	}
 
-	// Only uid 0 may bind below the threshold, which is the kernel's own rule and
-	// is asked directly rather than through isPrivilegedOrUnknown: that helper
-	// reports an account it cannot evaluate as privileged, which is safe for a
-	// refusal and unsafe for a grant such as this one. Windows has returned
-	// above, so Uid here is a Unix uid and never a SID.
-	if result.User != nil && result.User.Uid == "0" {
+	if result.User != nil && isPrivilegedUsername(result.User.Username) {
 		return nil
 	}
 

client/ssh/server/privileges_other.go

@@ -1,16 +0,0 @@
-//go:build !windows
-
-package server
-
-// isProcessElevated is only meaningful on Windows; other platforms use the
-// effective UID check in isCurrentProcessPrivileged.
-func isProcessElevated() bool {
-	return false
-}
-
-// isWindowsAccountPrivilegedOrUnknown is only reachable on Windows. Report
-// privileged on other platforms so a caller refusing privileged accounts fails
-// closed.
-func isWindowsAccountPrivilegedOrUnknown(string) bool {
-	return true
-}

client/ssh/server/privileges_windows.go

@@ -1,228 +0,0 @@
-//go:build windows
-
-package server
-
-import (
-	"fmt"
-	"strings"
-	"unsafe"
-
-	log "github.com/sirupsen/logrus"
-	"golang.org/x/sys/windows"
-)
-
-var (
-	netapi32                  = windows.NewLazySystemDLL("netapi32.dll")
-	procNetUserGetLocalGroups = netapi32.NewProc("NetUserGetLocalGroups")
-)
-
-const (
-	// lgIncludeIndirect makes NetUserGetLocalGroups also return local groups
-	// the user belongs to through a global group.
-	lgIncludeIndirect  = 0x1
-	maxPreferredLength = 0xFFFFFFFF
-)
-
-// localGroupUsersInfo0 mirrors LOCALGROUP_USERS_INFO_0.
-type localGroupUsersInfo0 struct {
-	name *uint16
-}
-
-// isProcessElevated reports whether the current process token is elevated
-// (TokenElevation): true for elevated administrators, the built-in
-// Administrator, administrators with UAC disabled, and SYSTEM; false for
-// standard users and administrators running with a UAC-filtered token.
-func isProcessElevated() bool {
-	return windows.GetCurrentProcessToken().IsElevated()
-}
-
-// isWindowsAccountPrivilegedOrUnknown reports whether the account is privileged
-// on this machine: a well-known service account, a built-in Administrator
-// (RID 500), or a member of the local Administrators group, directly or through
-// nested groups.
-//
-// An account whose privilege cannot be determined counts as privileged, which
-// is why the name says "or unknown". That is fail-closed for a caller that
-// refuses privileged accounts, and fail-open for a caller that grants something
-// to them, so only the former may use this.
-func isWindowsAccountPrivilegedOrUnknown(username string) bool {
-	sid, _, _, err := windows.LookupSID("", username)
-	if err != nil {
-		log.Warnf("privilege check: SID lookup for %q failed, treating as privileged: %v", username, err)
-		return true
-	}
-
-	if isPrivilegedUserSID(sid) {
-		return true
-	}
-
-	member, err := isLocalAdminsMember(username)
-	if err != nil {
-		log.Warnf("privilege check: cannot determine Administrators membership for %q, treating as privileged: %v", username, err)
-		return true
-	}
-	return member
-}
-
-// isPrivilegedUserSID reports whether the SID itself identifies a privileged
-// principal, without consulting group membership.
-func isPrivilegedUserSID(sid *windows.SID) bool {
-	wellKnown := []windows.WELL_KNOWN_SID_TYPE{
-		windows.WinLocalSystemSid,
-		windows.WinLocalServiceSid,
-		windows.WinNetworkServiceSid,
-		windows.WinBuiltinAdministratorsSid,
-	}
-	for _, sidType := range wellKnown {
-		if sid.IsWellKnown(sidType) {
-			return true
-		}
-	}
-	return isBuiltinAdministratorSID(sid)
-}
-
-// isBuiltinAdministratorSID reports whether the SID is a machine or domain
-// built-in Administrator account (S-1-5-21-...-500). RID 500 is reserved for
-// that account; it can be renamed but cannot be removed from the
-// Administrators group.
-func isBuiltinAdministratorSID(sid *windows.SID) bool {
-	if sid.IdentifierAuthority() != windows.SECURITY_NT_AUTHORITY {
-		return false
-	}
-	count := sid.SubAuthorityCount()
-	if count < 2 || sid.SubAuthority(0) != 21 {
-		return false
-	}
-	return sid.SubAuthority(uint32(count-1)) == 500
-}
-
-// isLocalAdminsMember reports whether the account is a member of the local
-// Administrators group.
-//
-// Local accounts are checked against the local SAM, which is authoritative for
-// them and, unlike a token, cannot under-report: UAC filters the tokens of
-// local administrators, and a filtered token carries Administrators as
-// deny-only, which a membership check on the token would read as "not a
-// member". Domain accounts are exempt from that filtering, so for them an S4U
-// token is preferred because its group list is LSA's transitive expansion and
-// therefore covers nested and universal groups plus the machine's own local
-// groups. NetUserGetLocalGroups expands only one global-group hop but needs no
-// logon, so it serves as the fallback when no token can be obtained.
-func isLocalAdminsMember(username string) (bool, error) {
-	adminSid, err := windows.CreateWellKnownSid(windows.WinBuiltinAdministratorsSid)
-	if err != nil {
-		return false, fmt.Errorf("create Administrators SID: %w", err)
-	}
-
-	account, domain := parseUsername(username)
-	if NewPrivilegeDropper().isLocalUser(domain) {
-		return localGroupsContainSID(account, adminSid)
-	}
-
-	member, s4uErr := s4uTokenIsMember(account, domain, adminSid)
-	if s4uErr == nil {
-		return member, nil
-	}
-	log.Debugf("privilege check: S4U membership check for %q failed, falling back to local group enumeration: %v", username, s4uErr)
-
-	member, err = localGroupsContainSID(buildUserCpn(account, domain), adminSid)
-	if err != nil {
-		return false, fmt.Errorf("S4U check: %w; local group enumeration: %w", s4uErr, err)
-	}
-	return member, nil
-}
-
-// s4uTokenIsMember obtains an S4U token for the account and checks whether the
-// given SID is enabled in it.
-func s4uTokenIsMember(account, domain string, sid *windows.SID) (bool, error) {
-	token, err := generateS4UUserToken(log.NewEntry(log.StandardLogger()), account, domain)
-	if err != nil {
-		return false, err
-	}
-	defer func() {
-		if err := windows.CloseHandle(token); err != nil {
-			log.Debugf("close S4U token: %v", err)
-		}
-	}()
-	return windows.Token(token).IsMember(sid)
-}
-
-// localGroupsContainSID reports whether the wanted group is among the local
-// groups the account belongs to, directly or through a global group.
-//
-// The wanted SID is resolved to its group name once and compared against the
-// enumerated names. Well-known SIDs resolve from a static table, so that lookup
-// needs no domain controller, and it keeps the comparison correct for a renamed
-// or localized group because both sides then carry the new name. Resolving each
-// enumerated name back to a SID instead would add a lookup per group that can
-// block until it times out while a domain controller is unreachable, and cannot
-// change the outcome: the names enumerated here are local groups of this
-// machine, whose names are unique, so a name match identifies the group.
-//
-// A failure to resolve the wanted SID is returned rather than reported as
-// "not a member", so a privilege check built on this fails closed.
-func localGroupsContainSID(username string, want *windows.SID) (bool, error) {
-	wantName, _, _, err := want.LookupAccount("")
-	if err != nil {
-		return false, fmt.Errorf("resolve group SID %s to a name: %w", want, err)
-	}
-
-	groups, err := netUserGetLocalGroups(username)
-	if err != nil {
-		return false, err
-	}
-
-	for _, group := range groups {
-		if strings.EqualFold(group, wantName) {
-			return true, nil
-		}
-	}
-	return false, nil
-}
-
-// netUserGetLocalGroups returns the names of the local groups the account is a
-// member of, including indirect membership through global groups.
-func netUserGetLocalGroups(username string) ([]string, error) {
-	name16, err := windows.UTF16PtrFromString(username)
-	if err != nil {
-		return nil, fmt.Errorf("convert username: %w", err)
-	}
-
-	var buf *byte
-	var entriesRead, totalEntries uint32
-	status, _, _ := procNetUserGetLocalGroups.Call(
-		0, // local server
-		uintptr(unsafe.Pointer(name16)),
-		0, // level 0: LOCALGROUP_USERS_INFO_0
-		lgIncludeIndirect,
-		uintptr(unsafe.Pointer(&buf)),
-		maxPreferredLength,
-		uintptr(unsafe.Pointer(&entriesRead)),
-		uintptr(unsafe.Pointer(&totalEntries)),
-	)
-	if status != 0 {
-		return nil, fmt.Errorf("NetUserGetLocalGroups for %q: status %d", username, status)
-	}
-	if buf == nil {
-		return nil, nil
-	}
-	defer func() {
-		if err := windows.NetApiBufferFree(buf); err != nil {
-			log.Debugf("free NetApi buffer: %v", err)
-		}
-	}()
-
-	// MAX_PREFERRED_LENGTH makes the API allocate as much as it needs, so a
-	// short read is not expected. Report it rather than silently returning a
-	// subset of the account's groups.
-	if entriesRead != totalEntries {
-		return nil, fmt.Errorf("NetUserGetLocalGroups for %q returned %d of %d groups", username, entriesRead, totalEntries)
-	}
-
-	entries := unsafe.Slice((*localGroupUsersInfo0)(unsafe.Pointer(buf)), entriesRead)
-	groups := make([]string, 0, entriesRead)
-	for _, entry := range entries {
-		groups = append(groups, windows.UTF16PtrToString(entry.name))
-	}
-	return groups, nil
-}

client/ssh/server/privileges_windows_test.go

@@ -1,293 +0,0 @@
-//go:build windows
-
-package server
-
-import (
-	"os/user"
-	"testing"
-	"unsafe"
-
-	"github.com/stretchr/testify/assert"
-	"github.com/stretchr/testify/require"
-	"golang.org/x/sys/windows"
-)
-
-// filterNormalAccount limits NetUserEnum to normal user accounts.
-const filterNormalAccount = 0x2
-
-// TOKEN_ELEVATION_TYPE values.
-const (
-	tokenElevationTypeDefault = 1
-	tokenElevationTypeFull    = 2
-	tokenElevationTypeLimited = 3
-)
-
-// tokenElevationType reads TokenElevationType from a token.
-func tokenElevationType(token windows.Token) (uint32, error) {
-	var elevationType, returnedLen uint32
-	err := windows.GetTokenInformation(token, windows.TokenElevationType,
-		(*byte)(unsafe.Pointer(&elevationType)), uint32(unsafe.Sizeof(elevationType)), &returnedLen)
-	if err != nil {
-		return 0, err
-	}
-	return elevationType, nil
-}
-
-// userInfo0 mirrors USER_INFO_0.
-type userInfo0 struct {
-	name *uint16
-}
-
-func mustParseSID(t *testing.T, s string) *windows.SID {
-	t.Helper()
-	sid, err := windows.StringToSid(s)
-	require.NoError(t, err, "parse SID %s", s)
-	return sid
-}
-
-// localAccountNames returns the names of the local user accounts.
-func localAccountNames(t *testing.T) []string {
-	t.Helper()
-
-	var buf *byte
-	var entriesRead, totalEntries, resume uint32
-	err := windows.NetUserEnum(nil, 0, filterNormalAccount, &buf, maxPreferredLength,
-		&entriesRead, &totalEntries, &resume)
-	require.NoError(t, err, "enumerate local users")
-	t.Cleanup(func() {
-		require.NoError(t, windows.NetApiBufferFree(buf), "free NetApi buffer")
-	})
-
-	entries := unsafe.Slice((*userInfo0)(unsafe.Pointer(buf)), entriesRead)
-	names := make([]string, 0, entriesRead)
-	for _, entry := range entries {
-		names = append(names, windows.UTF16PtrToString(entry.name))
-	}
-	return names
-}
-
-// localAccountNameByRID returns the name of the local account carrying the
-// given RID. Accounts such as Administrator and Guest can be renamed and are
-// localized, so tests must not name them literally.
-func localAccountNameByRID(t *testing.T, rid uint32) string {
-	t.Helper()
-
-	for _, name := range localAccountNames(t) {
-		sid, _, _, err := windows.LookupSID("", name)
-		if err != nil {
-			continue
-		}
-		if sid.IdentifierAuthority() != windows.SECURITY_NT_AUTHORITY {
-			continue
-		}
-		count := sid.SubAuthorityCount()
-		if count < 2 || sid.SubAuthority(0) != 21 {
-			continue
-		}
-		if sid.SubAuthority(uint32(count-1)) == rid {
-			return name
-		}
-	}
-
-	t.Fatalf("no local account with RID %d", rid)
-	return ""
-}
-
-// wellKnownAccountName resolves a well-known SID to the qualified account name
-// the local system uses for it, which is localized.
-func wellKnownAccountName(t *testing.T, sidType windows.WELL_KNOWN_SID_TYPE) string {
-	t.Helper()
-
-	sid, err := windows.CreateWellKnownSid(sidType)
-	require.NoError(t, err, "create well-known SID")
-	name, domain, _, err := sid.LookupAccount("")
-	require.NoError(t, err, "resolve %s to an account name", sid)
-	if domain == "" {
-		return name
-	}
-	return domain + `\` + name
-}
-
-func TestIsBuiltinAdministratorSID(t *testing.T) {
-	tests := []struct {
-		name string
-		sid  string
-		want bool
-	}{
-		{"machine_administrator", "S-1-5-21-1111111111-2222222222-3333333333-500", true},
-		{"domain_administrator", "S-1-5-21-3390233681-4087452608-412898826-500", true},
-		{"regular_user", "S-1-5-21-1111111111-2222222222-3333333333-1001", false},
-		{"guest_account", "S-1-5-21-1111111111-2222222222-3333333333-501", false},
-		{"domain_admins_group", "S-1-5-21-1111111111-2222222222-3333333333-512", false},
-		{"system", "S-1-5-18", false},
-		{"administrators_group", "S-1-5-32-544", false},
-		{"non_nt_authority", "S-1-1-0", false},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := isBuiltinAdministratorSID(mustParseSID(t, tt.sid))
-			assert.Equal(t, tt.want, result, "RID 500 detection for %s", tt.sid)
-		})
-	}
-}
-
-func TestIsPrivilegedUserSID(t *testing.T) {
-	tests := []struct {
-		name string
-		sid  string
-		want bool
-	}{
-		{"local_system", "S-1-5-18", true},
-		{"local_service", "S-1-5-19", true},
-		{"network_service", "S-1-5-20", true},
-		{"administrators_group", "S-1-5-32-544", true},
-		{"builtin_administrator", "S-1-5-21-1111111111-2222222222-3333333333-500", true},
-		{"regular_user", "S-1-5-21-1111111111-2222222222-3333333333-1001", false},
-		{"users_group", "S-1-5-32-545", false},
-		{"everyone", "S-1-1-0", false},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := isPrivilegedUserSID(mustParseSID(t, tt.sid))
-			assert.Equal(t, tt.want, result, "SID privilege classification for %s", tt.sid)
-		})
-	}
-}
-
-func TestIsWindowsAccountPrivilegedOrUnknown(t *testing.T) {
-	tests := []struct {
-		name     string
-		username string
-		want     bool
-	}{
-		{"system", wellKnownAccountName(t, windows.WinLocalSystemSid), true},
-		{"local_service", wellKnownAccountName(t, windows.WinLocalServiceSid), true},
-		{"network_service", wellKnownAccountName(t, windows.WinNetworkServiceSid), true},
-		{"administrators_group", wellKnownAccountName(t, windows.WinBuiltinAdministratorsSid), true},
-		// The built-in Administrator (RID 500) and Guest (RID 501) accounts
-		// exist on every Windows installation, though they may be disabled.
-		{"builtin_administrator", localAccountNameByRID(t, 500), true},
-		{"guest", localAccountNameByRID(t, 501), false},
-		// Unresolvable accounts fail closed.
-		{"nonexistent_user", "netbird-no-such-user", true},
-		{"empty_username", "", true},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := isWindowsAccountPrivilegedOrUnknown(tt.username)
-			assert.Equal(t, tt.want, result, "account privilege classification for %q", tt.username)
-		})
-	}
-}
-
-func TestIsProcessElevated(t *testing.T) {
-	elevated := isProcessElevated()
-
-	// TokenElevationType is a second, independent view of the same token:
-	// Full means elevated and Limited means a filtered administrator, while
-	// Default covers both a standard user and an administrator with no linked
-	// token (UAC off, the built-in Administrator, SYSTEM), so it implies nothing.
-	elevationType, err := tokenElevationType(windows.GetCurrentProcessToken())
-	require.NoError(t, err, "read token elevation type")
-
-	adminSid, err := windows.CreateWellKnownSid(windows.WinBuiltinAdministratorsSid)
-	require.NoError(t, err, "create Administrators SID")
-
-	// Token(0) makes CheckTokenMembership evaluate the caller's own token. It
-	// counts only enabled SIDs, so a filtered administrator reports false here.
-	member, err := windows.Token(0).IsMember(adminSid)
-	require.NoError(t, err, "check own Administrators membership")
-
-	t.Logf("elevated=%v elevationType=%d memberOfAdministrators=%v", elevated, elevationType, member)
-
-	switch elevationType {
-	case tokenElevationTypeFull:
-		assert.True(t, elevated, "a token of elevation type Full must report elevated")
-	case tokenElevationTypeLimited:
-		assert.False(t, elevated, "a filtered administrator token must not report elevated")
-	}
-
-	// Administrators enabled in the token means the token wields administrative
-	// rights, which is what elevation reports.
-	if member {
-		assert.True(t, elevated, "token with enabled Administrators membership must report elevated")
-	}
-}
-
-// TestS4UMembershipAgreesWithLocalGroups exercises the S4U token path used
-// for domain accounts. S4U logons need the TCB privilege, so the test runs
-// only as SYSTEM (which is how CI executes the suite). For local accounts the
-// token's Administrators membership must agree with the SAM enumeration.
-func TestS4UMembershipAgreesWithLocalGroups(t *testing.T) {
-	system, err := windows.CreateWellKnownSid(windows.WinLocalSystemSid)
-	require.NoError(t, err, "create SYSTEM SID")
-	current, err := user.Current()
-	require.NoError(t, err, "get current user")
-	if current.Uid != system.String() {
-		t.Skipf("S4U logon requires SYSTEM (running as %s)", current.Username)
-	}
-
-	adminSid, err := windows.CreateWellKnownSid(windows.WinBuiltinAdministratorsSid)
-	require.NoError(t, err, "create Administrators SID")
-
-	checked := 0
-	for _, name := range localAccountNames(t) {
-		viaToken, err := s4uTokenIsMember(name, ".", adminSid)
-		if err != nil {
-			// Disabled or logon-restricted accounts cannot get an S4U logon.
-			t.Logf("skipping %s: %v", name, err)
-			continue
-		}
-		viaSAM, err := localGroupsContainSID(name, adminSid)
-		require.NoError(t, err, "enumerate local groups for %s", name)
-
-		assert.Equal(t, viaSAM, viaToken, "S4U token and SAM enumeration must agree on Administrators membership for %s", name)
-		checked++
-	}
-	// Ineligible accounts are skipped, so without this the test could report
-	// success while comparing nothing at all.
-	require.Positive(t, checked, "no local account completed an S4U logon, so nothing was compared")
-	t.Logf("checked %d local accounts via S4U", checked)
-}
-
-// TestLocalGroupsContainSID_Administrator checks the positive case against the
-// built-in Administrator, a member of Administrators on every installation.
-func TestLocalGroupsContainSID_Administrator(t *testing.T) {
-	adminSid, err := windows.CreateWellKnownSid(windows.WinBuiltinAdministratorsSid)
-	require.NoError(t, err, "create Administrators SID")
-
-	administrator := localAccountNameByRID(t, 500)
-	member, err := localGroupsContainSID(administrator, adminSid)
-	require.NoError(t, err, "enumerate local groups for %s", administrator)
-	assert.True(t, member, "%s is a member of the Administrators group", administrator)
-}
-
-// TestLocalGroupsContainSID_UnresolvableGroupFailsClosed covers a wanted SID
-// that resolves to no group: the error must surface rather than being reported
-// as "not a member", so the privilege check treats the account as privileged.
-func TestLocalGroupsContainSID_UnresolvableGroupFailsClosed(t *testing.T) {
-	unknown := mustParseSID(t, "S-1-5-21-1111111111-2222222222-3333333333-4444")
-
-	_, err := localGroupsContainSID(localAccountNameByRID(t, 500), unknown)
-	require.Error(t, err, "must report an error when the wanted group cannot be identified")
-}
-
-func TestLocalGroupsContainSID_Guest(t *testing.T) {
-	guestsSid, err := windows.CreateWellKnownSid(windows.WinBuiltinGuestsSid)
-	require.NoError(t, err, "create Guests SID")
-	adminsSid, err := windows.CreateWellKnownSid(windows.WinBuiltinAdministratorsSid)
-	require.NoError(t, err, "create Administrators SID")
-
-	guest := localAccountNameByRID(t, 501)
-
-	inGuests, err := localGroupsContainSID(guest, guestsSid)
-	require.NoError(t, err, "enumerate local groups for %s", guest)
-	assert.True(t, inGuests, "%s is a member of the Guests group", guest)
-
-	inAdmins, err := localGroupsContainSID(guest, adminsSid)
-	require.NoError(t, err, "enumerate local groups for %s", guest)
-	assert.False(t, inAdmins, "%s is not a member of the Administrators group", guest)
-}

client/ssh/server/server_config_test.go

@@ -239,7 +239,6 @@ func TestServer_PrivilegedPortAccess(t *testing.T) {
 		forwardType   string
 		port          uint32
 		username      string
-		uid           string
 		expectError   bool
 		errorMsg      string
 		skipOnWindows bool
@@ -249,7 +248,6 @@ func TestServer_PrivilegedPortAccess(t *testing.T) {
 			forwardType:   "remote",
 			port:          80,
 			username:      "testuser",
-			uid:           "1000",
 			expectError:   true,
 			errorMsg:      "cannot bind to privileged port",
 			skipOnWindows: true,
@@ -259,7 +257,6 @@ func TestServer_PrivilegedPortAccess(t *testing.T) {
 			forwardType:   "tcpip-forward",
 			port:          443,
 			username:      "testuser",
-			uid:           "1000",
 			expectError:   true,
 			errorMsg:      "cannot bind to privileged port",
 			skipOnWindows: true,
@@ -269,7 +266,6 @@ func TestServer_PrivilegedPortAccess(t *testing.T) {
 			forwardType: "remote",
 			port:        8080,
 			username:    "testuser",
-			uid:         "1000",
 			expectError: false,
 		},
 		{
@@ -277,7 +273,6 @@ func TestServer_PrivilegedPortAccess(t *testing.T) {
 			forwardType: "remote",
 			port:        0,
 			username:    "testuser",
-			uid:         "1000",
 			expectError: false,
 		},
 		{
@@ -285,35 +280,13 @@ func TestServer_PrivilegedPortAccess(t *testing.T) {
 			forwardType: "remote",
 			port:        22,
 			username:    "root",
-			uid:         "0",
 			expectError: false,
 		},
-		{
-			// Only uid 0 is privileged, whatever the account is called.
-			name:          "uid 0 under another name may bind a privileged port",
-			forwardType:   "remote",
-			port:          22,
-			username:      "toor",
-			uid:           "0",
-			expectError:   false,
-			skipOnWindows: true,
-		},
-		{
-			name:          "account named root without uid 0 may not",
-			forwardType:   "remote",
-			port:          22,
-			username:      "root",
-			uid:           "1000",
-			expectError:   true,
-			errorMsg:      "cannot bind to privileged port",
-			skipOnWindows: true,
-		},
 		{
 			name:        "local forward privileged port allowed for non-root",
 			forwardType: "local",
 			port:        80,
 			username:    "testuser",
-			uid:         "1000",
 			expectError: false,
 		},
 	}
@@ -326,7 +299,7 @@ func TestServer_PrivilegedPortAccess(t *testing.T) {
 
 			result := PrivilegeCheckResult{
 				Allowed: true,
-				User:    &user.User{Username: tt.username, Uid: tt.uid},
+				User:    &user.User{Username: tt.username},
 			}
 
 			err := server.checkPrivilegedPortAccess(tt.forwardType, tt.port, result)
@@ -447,13 +420,6 @@ func TestServer_PortConflictHandling(t *testing.T) {
 
 func TestServer_IsPrivilegedUser(t *testing.T) {
 
-	// Windows classification depends on account SIDs and group membership, and
-	// the accounts involved carry localized, renameable names. It is covered by
-	// TestIsWindowsAccountPrivileged, which resolves them from well-known SIDs.
-	if runtime.GOOS == "windows" {
-		t.Skip("covered by TestIsWindowsAccountPrivileged")
-	}
-
 	tests := []struct {
 		username    string
 		expected    bool
@@ -474,16 +440,44 @@ func TestServer_IsPrivilegedUser(t *testing.T) {
 			expected:    false,
 			description: "empty username should not be privileged",
 		},
-		{
-			username:    "Administrator",
-			expected:    false,
-			description: "Administrator should not be privileged on non-Windows systems",
-		},
+	}
+
+	// Add Windows-specific tests
+	if runtime.GOOS == "windows" {
+		tests = append(tests, []struct {
+			username    string
+			expected    bool
+			description string
+		}{
+			{
+				username:    "Administrator",
+				expected:    true,
+				description: "Administrator should be considered privileged on Windows",
+			},
+			{
+				username:    "administrator",
+				expected:    true,
+				description: "administrator should be considered privileged on Windows (case insensitive)",
+			},
+		}...)
+	} else {
+		// On non-Windows systems, Administrator should not be privileged
+		tests = append(tests, []struct {
+			username    string
+			expected    bool
+			description string
+		}{
+			{
+				username:    "Administrator",
+				expected:    false,
+				description: "Administrator should not be privileged on non-Windows systems",
+			},
+		}...)
 	}
 
 	for _, tt := range tests {
 		t.Run(tt.description, func(t *testing.T) {
-			result := isPrivilegedOrUnknown(tt.username)
+			result := isPrivilegedUsername(tt.username)
 			assert.Equal(t, tt.expected, result, tt.description)
 		})
 	}

client/ssh/server/sftp_windows.go

@@ -17,7 +17,7 @@ import (
 // createSftpCommand creates a Windows SFTP command with user switching.
 // The caller must close the returned token handle after starting the process.
 func (s *Server) createSftpCommand(targetUser *user.User, sess ssh.Session) (*exec.Cmd, windows.Token, error) {
-	username, domain := parseUsername(targetUser.Username)
+	username, domain := s.parseUsername(targetUser.Username)
 
 	netbirdPath, err := os.Executable()
 	if err != nil {

client/ssh/server/user_utils.go

@@ -16,6 +16,11 @@ var (
 	ErrPrivilegedUserSwitch = errors.New("cannot switch to privileged user - current user lacks required privileges")
 )
 
+// isPlatformUnix returns true for Unix-like platforms (Linux, macOS, etc.)
+func isPlatformUnix() bool {
+	return getCurrentOS() != "windows"
+}
+
 // Dependency injection variables for testing - allows mocking dynamic runtime checks
 var (
 	getCurrentUser         = currentUserWithGetent
@@ -24,9 +29,6 @@ var (
 	getIsProcessPrivileged = isCurrentProcessPrivileged
 
 	getEuid = os.Geteuid
-
-	getProcessElevated                   = isProcessElevated
-	getWindowsAccountPrivilegedOrUnknown = isWindowsAccountPrivilegedOrUnknown
 )
 
 const (
@@ -63,13 +65,6 @@ type PrivilegeCheckResult struct {
 	RequiresUserSwitching bool
 }
 
-// privilegeCheckContext holds all context needed for privilege checking
-type privilegeCheckContext struct {
-	currentUser           *user.User
-	currentUserPrivileged bool
-	allowRoot             bool
-}
-
 // CheckPrivileges performs comprehensive privilege checking for all SSH features.
 // This is the single source of truth for privilege decisions across the SSH server.
 func (s *Server) CheckPrivileges(req PrivilegeCheckRequest) PrivilegeCheckResult {
@@ -80,7 +75,7 @@ func (s *Server) CheckPrivileges(req PrivilegeCheckRequest) PrivilegeCheckResult
 
 	// Handle empty username case - but still check root access controls
 	if req.RequestedUsername == "" {
-		if isPrivilegedOrUnknown(context.currentUser.Username) && !context.allowRoot {
+		if isPrivilegedUsername(context.currentUser.Username) && !context.allowRoot {
 			return PrivilegeCheckResult{
 				Allowed: false,
 				Error:   &PrivilegedUserError{Username: context.currentUser.Username},
@@ -140,7 +135,7 @@ func (s *Server) checkUserRequest(ctx *privilegeCheckContext, req PrivilegeCheck
 
 	needsUserSwitching := !isSameResolvedUser(resolvedUser, ctx.currentUser)
 
-	if isPrivilegedOrUnknown(resolvedUser.Username) && !ctx.allowRoot {
+	if isPrivilegedUsername(resolvedUser.Username) && !ctx.allowRoot {
 		return PrivilegeCheckResult{
 			Allowed:               false,
 			Error:                 &PrivilegedUserError{Username: resolvedUser.Username},
@@ -180,42 +175,6 @@ func (s *Server) resolveRequestedUser(requestedUsername string) (*user.User, err
 	return u, nil
 }
 
-// SetAllowRootLogin configures root login access
-func (s *Server) SetAllowRootLogin(allow bool) {
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	s.allowRootLogin = allow
-}
-
-// userNameLookup performs user lookup with root login permission check
-func (s *Server) userNameLookup(username string) (*user.User, error) {
-	result, err := s.userPrivilegeCheck(username)
-	if err != nil {
-		return nil, err
-	}
-	return result.User, nil
-}
-
-// userPrivilegeCheck performs user lookup with full privilege check result
-func (s *Server) userPrivilegeCheck(username string) (PrivilegeCheckResult, error) {
-	result := s.CheckPrivileges(PrivilegeCheckRequest{
-		RequestedUsername:         username,
-		FeatureSupportsUserSwitch: true,
-		FeatureName:               FeatureSSHLogin,
-	})
-
-	if !result.Allowed {
-		return result, result.Error
-	}
-
-	return result, nil
-}
-
-// isPlatformUnix returns true for Unix-like platforms (Linux, macOS, etc.)
-func isPlatformUnix() bool {
-	return getCurrentOS() != "windows"
-}
-
 // isSameResolvedUser compares two resolved user identities
 func isSameResolvedUser(user1, user2 *user.User) bool {
 	if user1 == nil || user2 == nil {
@@ -224,6 +183,13 @@ func isSameResolvedUser(user1, user2 *user.User) bool {
 	return user1.Uid == user2.Uid
 }
 
+// privilegeCheckContext holds all context needed for privilege checking
+type privilegeCheckContext struct {
+	currentUser           *user.User
+	currentUserPrivileged bool
+	allowRoot             bool
+}
+
 // isSameUser checks if two usernames refer to the same user
 // SECURITY: This function must be conservative - it should only return true
 // when we're certain both usernames refer to the exact same user identity
@@ -287,30 +253,159 @@ func isWindowsSameUser(requestedUsername, currentUsername string) bool {
 	return strings.EqualFold(reqDomain, curDomain)
 }
 
-// isPrivilegedOrUnknown reports whether the given username represents a
-// privileged user, or on Windows an account whose privilege could not be
-// determined.
-// On Unix: root.
-// On Windows: well-known service accounts, built-in Administrator accounts,
-// and members of the local Administrators group; handles domain-qualified
-// usernames like "DOMAIN\user" or "user@domain.com". An account that cannot be
-// resolved or evaluated is reported as privileged.
-//
-// Use this to refuse privileged accounts, never to grant them anything: the
-// undetermined case is safe for a refusal and unsafe for a grant.
-func isPrivilegedOrUnknown(username string) bool {
+// SetAllowRootLogin configures root login access
+func (s *Server) SetAllowRootLogin(allow bool) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.allowRootLogin = allow
+}
+
+// userNameLookup performs user lookup with root login permission check
+func (s *Server) userNameLookup(username string) (*user.User, error) {
+	result := s.CheckPrivileges(PrivilegeCheckRequest{
+		RequestedUsername:         username,
+		FeatureSupportsUserSwitch: true,
+		FeatureName:               FeatureSSHLogin,
+	})
+
+	if !result.Allowed {
+		return nil, result.Error
+	}
+
+	return result.User, nil
+}
+
+// userPrivilegeCheck performs user lookup with full privilege check result
+func (s *Server) userPrivilegeCheck(username string) (PrivilegeCheckResult, error) {
+	result := s.CheckPrivileges(PrivilegeCheckRequest{
+		RequestedUsername:         username,
+		FeatureSupportsUserSwitch: true,
+		FeatureName:               FeatureSSHLogin,
+	})
+
+	if !result.Allowed {
+		return result, result.Error
+	}
+
+	return result, nil
+}
+
+// isPrivilegedUsername checks if the given username represents a privileged user across platforms.
+// On Unix: root
+// On Windows: Administrator, SYSTEM (case-insensitive)
+// Handles domain-qualified usernames like "DOMAIN\Administrator" or "user@domain.com"
+func isPrivilegedUsername(username string) bool {
 	if getCurrentOS() != "windows" {
 		return username == "root"
 	}
-	return getWindowsAccountPrivilegedOrUnknown(username)
+
+	bareUsername := username
+	// Handle Windows domain format: DOMAIN\username
+	if idx := strings.LastIndex(username, `\`); idx != -1 {
+		bareUsername = username[idx+1:]
+	}
+	// Handle email-style format: username@domain.com
+	if idx := strings.Index(bareUsername, "@"); idx != -1 {
+		bareUsername = bareUsername[:idx]
+	}
+
+	return isWindowsPrivilegedUser(bareUsername)
+}
+
+// isWindowsPrivilegedUser checks if a bare username (domain already stripped) represents a Windows privileged account
+func isWindowsPrivilegedUser(bareUsername string) bool {
+	// common privileged usernames (case insensitive)
+	privilegedNames := []string{
+		"administrator",
+		"admin",
+		"root",
+		"system",
+		"localsystem",
+		"networkservice",
+		"localservice",
+	}
+
+	usernameLower := strings.ToLower(bareUsername)
+	for _, privilegedName := range privilegedNames {
+		if usernameLower == privilegedName {
+			return true
+		}
+	}
+
+	// computer accounts (ending with $) are not privileged by themselves
+	// They only gain privileges through group membership or specific SIDs
+
+	if targetUser, err := lookupUser(bareUsername); err == nil {
+		return isWindowsPrivilegedSID(targetUser.Uid)
+	}
+
+	return false
+}
+
+// isWindowsPrivilegedSID checks if a Windows SID represents a privileged account
+func isWindowsPrivilegedSID(sid string) bool {
+	privilegedSIDs := []string{
+		"S-1-5-18",     // Local System (SYSTEM)
+		"S-1-5-19",     // Local Service (NT AUTHORITY\LOCAL SERVICE)
+		"S-1-5-20",     // Network Service (NT AUTHORITY\NETWORK SERVICE)
+		"S-1-5-32-544", // Administrators group (BUILTIN\Administrators)
+		"S-1-5-500",    // Built-in Administrator account (local machine RID 500)
+	}
+
+	for _, privilegedSID := range privilegedSIDs {
+		if sid == privilegedSID {
+			return true
+		}
+	}
+
+	// Check for domain administrator accounts (RID 500 in any domain)
+	// Format: S-1-5-21-domain-domain-domain-500
+	// This is reliable as RID 500 is reserved for the domain Administrator account
+	if strings.HasPrefix(sid, "S-1-5-21-") && strings.HasSuffix(sid, "-500") {
+		return true
+	}
+
+	// Check for other well-known privileged RIDs in domain contexts
+	// RID 512 = Domain Admins group, RID 516 = Domain Controllers group
+	if strings.HasPrefix(sid, "S-1-5-21-") {
+		if strings.HasSuffix(sid, "-512") || // Domain Admins group
+			strings.HasSuffix(sid, "-516") || // Domain Controllers group
+			strings.HasSuffix(sid, "-519") { // Enterprise Admins group
+			return true
+		}
+	}
+
+	return false
 }
 
 // isCurrentProcessPrivileged checks if the current process is running with elevated privileges.
 // On Unix systems, this means running as root (UID 0).
-// On Windows, this means the process token is elevated (administrators, SYSTEM).
+// On Windows, this means running as Administrator or SYSTEM.
 func isCurrentProcessPrivileged() bool {
 	if getCurrentOS() == "windows" {
-		return getProcessElevated()
+		return isWindowsElevated()
 	}
 	return getEuid() == 0
 }
+
+// isWindowsElevated checks if the current process is running with elevated privileges on Windows
+func isWindowsElevated() bool {
+	currentUser, err := getCurrentUser()
+	if err != nil {
+		log.Errorf("failed to get current user for privilege check, assuming non-privileged: %v", err)
+		return false
+	}
+
+	if isWindowsPrivilegedSID(currentUser.Uid) {
+		log.Debugf("Windows user switching supported: running as privileged SID %s", currentUser.Uid)
+		return true
+	}
+
+	if isPrivilegedUsername(currentUser.Username) {
+		log.Debugf("Windows user switching supported: running as privileged username %s", currentUser.Username)
+		return true
+	}
+
+	log.Debugf("Windows user switching not supported: not running as privileged user (current: %s)", currentUser.Uid)
+	return false
+}

client/ssh/server/user_utils_test.go

@@ -4,7 +4,6 @@ import (
 	"errors"
 	"os/user"
 	"runtime"
-	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/assert"
@@ -28,8 +27,8 @@ func setupTestDependencies(currentUser *user.User, currentUserErr error, os stri
 	originalLookupUser := lookupUser
 	originalGetCurrentOS := getCurrentOS
 	originalGetEuid := getEuid
-	originalGetProcessElevated := getProcessElevated
-	originalGetWindowsAccountPrivilegedOrUnknown := getWindowsAccountPrivilegedOrUnknown
+
+	// Reset caches to ensure clean test state
 
 	// Set test values - inject platform dependencies
 	getCurrentUser = func() (*user.User, error) {
@@ -54,31 +53,16 @@ func setupTestDependencies(currentUser *user.User, currentUserErr error, os stri
 		return euid
 	}
 
-	// Simulate the Windows token elevation check based on the fixture user:
-	// the built-in Administrator (RID 500) and SYSTEM run elevated.
-	getProcessElevated = func() bool {
+	// Mock privilege detection based on the test user
+	getIsProcessPrivileged = func() bool {
 		if currentUser == nil {
 			return false
 		}
-		return currentUser.Uid == "S-1-5-18" || strings.HasSuffix(currentUser.Uid, "-500")
-	}
-
-	// Simulate the Windows account classifier for the fixture accounts.
-	// "root" does not exist on Windows; the real classifier fails closed on
-	// unresolvable accounts, so it counts as privileged here too.
-	getWindowsAccountPrivilegedOrUnknown = func(username string) bool {
-		bare := username
-		if idx := strings.LastIndex(bare, `\`); idx != -1 {
-			bare = bare[idx+1:]
-		}
-		if idx := strings.Index(bare, "@"); idx != -1 {
-			bare = bare[:idx]
-		}
-		switch strings.ToLower(bare) {
-		case "administrator", "system", "root":
+		// Check both username and SID for Windows systems
+		if os == "windows" && isWindowsPrivilegedSID(currentUser.Uid) {
 			return true
 		}
-		return false
+		return isPrivilegedUsername(currentUser.Username)
 	}
 
 	// Return cleanup function
@@ -87,8 +71,10 @@ func setupTestDependencies(currentUser *user.User, currentUserErr error, os stri
 		lookupUser = originalLookupUser
 		getCurrentOS = originalGetCurrentOS
 		getEuid = originalGetEuid
-		getProcessElevated = originalGetProcessElevated
-		getWindowsAccountPrivilegedOrUnknown = originalGetWindowsAccountPrivilegedOrUnknown
+
+		getIsProcessPrivileged = isCurrentProcessPrivileged
+
+		// Reset caches after test
 	}
 }
 
@@ -435,9 +421,6 @@ func TestUsedFallback_MeansNoPrivilegeDropping(t *testing.T) {
 }
 
 func TestPrivilegedUsernameDetection(t *testing.T) {
-	// Windows classification is syscall-backed (SID resolution, group
-	// membership) and is covered by privileges_windows_test.go; here only the
-	// Unix logic and the platform dispatch are exercised.
 	tests := []struct {
 		name       string
 		username   string
@@ -449,9 +432,25 @@ func TestPrivilegedUsernameDetection(t *testing.T) {
 		{"unix_regular_user", "alice", "linux", false},
 		{"unix_root_capital", "Root", "linux", false}, // Case-sensitive
 
-		// Windows dispatch to the (mocked) account classifier
+		// Windows tests
 		{"windows_administrator", "Administrator", "windows", true},
+		{"windows_system", "SYSTEM", "windows", true},
+		{"windows_admin", "admin", "windows", true},
+		{"windows_admin_lowercase", "administrator", "windows", true}, // Case-insensitive
+		{"windows_domain_admin", "DOMAIN\\Administrator", "windows", true},
+		{"windows_email_admin", "admin@domain.com", "windows", true},
 		{"windows_regular_user", "alice", "windows", false},
+		{"windows_domain_user", "DOMAIN\\alice", "windows", false},
+		{"windows_localsystem", "localsystem", "windows", true},
+		{"windows_networkservice", "networkservice", "windows", true},
+		{"windows_localservice", "localservice", "windows", true},
+
+		// Computer accounts (these depend on current user context in real implementation)
+		{"windows_computer_account", "WIN2K19-C2$", "windows", false},      // Computer account by itself not privileged
+		{"windows_domain_computer", "DOMAIN\\COMPUTER$", "windows", false}, // Domain computer account
+
+		// Cross-platform
+		{"root_on_windows", "root", "windows", true}, // Root should be privileged everywhere
 	}
 
 	for _, tt := range tests {
@@ -460,8 +459,50 @@ func TestPrivilegedUsernameDetection(t *testing.T) {
 			cleanup := setupTestDependencies(nil, nil, tt.platform, 1000, nil, nil)
 			defer cleanup()
 
-			result := isPrivilegedOrUnknown(tt.username)
-			assert.Equal(t, tt.privileged, result, "privilege classification for %s on %s", tt.username, tt.platform)
+			result := isPrivilegedUsername(tt.username)
+			assert.Equal(t, tt.privileged, result)
+		})
+	}
+}
+
+func TestWindowsPrivilegedSIDDetection(t *testing.T) {
+	tests := []struct {
+		name        string
+		sid         string
+		privileged  bool
+		description string
+	}{
+		// Well-known system accounts
+		{"system_account", "S-1-5-18", true, "Local System (SYSTEM)"},
+		{"local_service", "S-1-5-19", true, "Local Service"},
+		{"network_service", "S-1-5-20", true, "Network Service"},
+		{"administrators_group", "S-1-5-32-544", true, "Administrators group"},
+		{"builtin_administrator", "S-1-5-500", true, "Built-in Administrator"},
+
+		// Domain accounts
+		{"domain_administrator", "S-1-5-21-1234567890-1234567890-1234567890-500", true, "Domain Administrator (RID 500)"},
+		{"domain_admins_group", "S-1-5-21-1234567890-1234567890-1234567890-512", true, "Domain Admins group"},
+		{"domain_controllers_group", "S-1-5-21-1234567890-1234567890-1234567890-516", true, "Domain Controllers group"},
+		{"enterprise_admins_group", "S-1-5-21-1234567890-1234567890-1234567890-519", true, "Enterprise Admins group"},
+
+		// Regular users
+		{"regular_user", "S-1-5-21-1234567890-1234567890-1234567890-1001", false, "Regular domain user"},
+		{"another_regular_user", "S-1-5-21-1234567890-1234567890-1234567890-1234", false, "Another regular user"},
+		{"local_user", "S-1-5-21-1234567890-1234567890-1234567890-1000", false, "Local regular user"},
+
+		// Groups that are not privileged
+		{"domain_users", "S-1-5-21-1234567890-1234567890-1234567890-513", false, "Domain Users group"},
+		{"power_users", "S-1-5-32-547", false, "Power Users group"},
+
+		// Invalid SIDs
+		{"malformed_sid", "S-1-5-invalid", false, "Malformed SID"},
+		{"empty_sid", "", false, "Empty SID"},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := isWindowsPrivilegedSID(tt.sid)
+			assert.Equal(t, tt.privileged, result, "Failed for %s: %s", tt.description, tt.sid)
 		})
 	}
 }

client/ssh/server/userswitching_windows.go

@@ -91,7 +91,7 @@ func validateUsernameFormat(username string) error {
 func (s *Server) createExecutorCommand(logger *log.Entry, session ssh.Session, localUser *user.User, hasPty bool) (*exec.Cmd, func(), error) {
 	logger.Debugf("creating Windows executor command for user %s (Pty: %v)", localUser.Username, hasPty)
 
-	username, _ := parseUsername(localUser.Username)
+	username, _ := s.parseUsername(localUser.Username)
 	if err := validateUsername(username); err != nil {
 		return nil, nil, fmt.Errorf("invalid username %q: %w", username, err)
 	}
@@ -102,7 +102,7 @@ func (s *Server) createExecutorCommand(logger *log.Entry, session ssh.Session, l
 // createUserSwitchCommand creates a command with Windows user switching.
 // Returns the command and a cleanup function that must be called after starting the process.
 func (s *Server) createUserSwitchCommand(logger *log.Entry, session ssh.Session, localUser *user.User) (*exec.Cmd, func(), error) {
-	username, domain := parseUsername(localUser.Username)
+	username, domain := s.parseUsername(localUser.Username)
 
 	shell := getUserShell(localUser.Uid)
 
@@ -138,7 +138,7 @@ func (s *Server) createUserSwitchCommand(logger *log.Entry, session ssh.Session,
 }
 
 // parseUsername extracts username and domain from a Windows username
-func parseUsername(fullUsername string) (username, domain string) {
+func (s *Server) parseUsername(fullUsername string) (username, domain string) {
 	// Handle DOMAIN\username format
 	if idx := strings.LastIndex(fullUsername, `\`); idx != -1 {
 		domain = fullUsername[:idx]

client/status/status.go

@@ -46,10 +46,7 @@ func ParseDaemonStatus(s string) DaemonStatus {
 
 // ConvertOptions holds parameters for ConvertToStatusOutputOverview.
 type ConvertOptions struct {
-	Anonymize bool
-	// AnonymizeLevel selects how much the anonymizer redacts. Only
-	// meaningful when Anonymize is set.
-	AnonymizeLevel       anonymize.Level
+	Anonymize            bool
 	DaemonVersion        string
 	DaemonStatus         DaemonStatus
 	StatusFilter         string
@@ -220,7 +217,6 @@ func ConvertToStatusOutputOverview(pbFullStatus *proto.FullStatus, opts ConvertO
 
 	if opts.Anonymize {
 		anonymizer := anonymize.NewAnonymizer(anonymize.DefaultAddresses())
-		anonymizer.SetLevel(opts.AnonymizeLevel)
 		anonymizeOverview(anonymizer, &overview)
 	}
 
@@ -980,7 +976,6 @@ func timeAgo(t time.Time) string {
 
 func anonymizePeerDetail(a *anonymize.Anonymizer, peer *PeerStateDetailOutput) {
 	peer.FQDN = a.AnonymizeDomain(peer.FQDN)
-	peer.PubKey = a.AnonymizeWGKey(peer.PubKey)
 	if localIP, port, err := net.SplitHostPort(peer.IceCandidateEndpoint.Local); err == nil {
 		peer.IceCandidateEndpoint.Local = fmt.Sprintf("%s:%s", a.AnonymizeIPString(localIP), port)
 	}
@@ -1012,7 +1007,6 @@ func anonymizeOverview(a *anonymize.Anonymizer, overview *OutputOverview) {
 	overview.SignalState.URL = a.AnonymizeURI(overview.SignalState.URL)
 	overview.SignalState.Error = a.AnonymizeString(overview.SignalState.Error)
 
-	overview.PubKey = a.AnonymizeWGKey(overview.PubKey)
 	overview.IP = a.AnonymizeIPString(overview.IP)
 	overview.IPv6 = a.AnonymizeIPString(overview.IPv6)
 	for i, detail := range overview.Relays.Details {

client/ui/frontend/src/contexts/DebugBundleContext.tsx

@@ -71,12 +71,10 @@ type BundleOptions = {
     hasWindow: boolean;
     totalSec: number;
     uploadUrl: string;
-    anonymizeLevel: AnonymizeLevel;
+    anonymize: boolean;
     systemInfo: boolean;
 };
 
-export type AnonymizeLevel = "none" | "default" | "strict";
-
 const startCaptureBestEffort = async (totalSec: number, pcap: CaptureState) => {
     try {
         // Mirror the CLI's safety margin: window + 30s, server caps at 10m.
@@ -189,10 +187,7 @@ const runBundleFlow = async (
 
     if (opts.uploadUrl) setStage({ kind: "uploading" });
     const result = await DebugSvc.Bundle({
-        anonymize: opts.anonymizeLevel !== "none",
-        // The daemon only knows "default" and "strict"; "none" is expressed
-        // through the anonymize flag being off.
-        anonymizeLevel: opts.anonymizeLevel === "strict" ? "strict" : "default",
+        anonymize: opts.anonymize,
         systemInfo: opts.systemInfo,
         uploadUrl: opts.uploadUrl,
         logFileCount,
@@ -203,7 +198,7 @@ const runBundleFlow = async (
 };
 
 const useDebugBundle = () => {
-    const [anonymizeLevel, setAnonymizeLevel] = useState<AnonymizeLevel>("none");
+    const [anonymize, setAnonymize] = useState(false);
     const [systemInfo, setSystemInfo] = useState(true);
     const [upload, setUpload] = useState(true);
     const [trace, setTrace] = useState(true);
@@ -245,7 +240,7 @@ const useDebugBundle = () => {
             hasWindow: capture && totalSec > 0,
             totalSec,
             uploadUrl: upload ? NETBIRD_UPLOAD_URL : "",
-            anonymizeLevel,
+            anonymize,
             systemInfo,
         };
 
@@ -277,8 +272,8 @@ const useDebugBundle = () => {
     };
 
     return {
-        anonymizeLevel,
-        setAnonymizeLevel,
+        anonymize,
+        setAnonymize,
         systemInfo,
         setSystemInfo,
         upload,

client/ui/frontend/src/hooks/useKeepConnectedOnQuit.ts

@@ -1,35 +0,0 @@
-import { useCallback, useEffect, useState } from "react";
-import { Preferences } from "@bindings/services";
-
-export const useKeepConnectedOnQuit = () => {
-    const [keepConnected, setKeepConnected] = useState<boolean | null>(null);
-
-    useEffect(() => {
-        let cancelled = false;
-        Preferences.Get()
-            .then((prefs) => {
-                if (cancelled) return;
-                setKeepConnected(prefs?.keepConnectedOnQuit ?? false);
-            })
-            .catch((err: unknown) => {
-                if (cancelled) return;
-                console.warn("[useKeepConnectedOnQuit] load preferences failed", err);
-                setKeepConnected(false);
-            });
-        return () => {
-            cancelled = true;
-        };
-    }, []);
-
-    const setKeepConnectedOnQuit = useCallback(async (keep: boolean) => {
-        setKeepConnected(keep);
-        try {
-            await Preferences.SetKeepConnectedOnQuit(keep);
-        } catch (err: unknown) {
-            setKeepConnected(!keep);
-            console.error("[useKeepConnectedOnQuit] SetKeepConnectedOnQuit failed", err);
-        }
-    }, []);
-
-    return { keepConnected, setKeepConnectedOnQuit };
-};

client/ui/frontend/src/modules/settings/SettingsGeneral.tsx

@@ -11,7 +11,6 @@ import { ManagementServerSwitch } from "@/components/ManagementServerSwitch.tsx"
 import { ManagementMode, useManagementUrl } from "@/hooks/useManagementUrl.ts";
 import { LanguagePicker } from "@/components/LanguagePicker.tsx";
 import { useRestrictions } from "@/contexts/RestrictionsContext.tsx";
-import { useKeepConnectedOnQuit } from "@/hooks/useKeepConnectedOnQuit.ts";
 
 export function SettingsGeneral() {
     const { t } = useTranslation();
@@ -20,7 +19,6 @@ export function SettingsGeneral() {
     const { mode, setMode, setUrl, displayUrl, showError, canSave, save, checking, unreachable } =
         useManagementUrl();
     const { mdm, features } = useRestrictions();
-    const { keepConnected, setKeepConnectedOnQuit } = useKeepConnectedOnQuit();
 
     const inputRef = useRef<HTMLInputElement>(null);
     const managementUrlId = useId();
@@ -59,15 +57,6 @@ export function SettingsGeneral() {
                         helpText={t("settings.general.autostart.help")}
                     />
                 )}
-                <FancyToggleSwitch
-                    value={keepConnected ?? false}
-                    onChange={(v) => {
-                        void setKeepConnectedOnQuit(v);
-                    }}
-                    loading={keepConnected === null}
-                    label={t("settings.general.keepConnectedOnQuit.label")}
-                    helpText={t("settings.general.keepConnectedOnQuit.help")}
-                />
             </SectionGroup>
 
             {!mdm.managementURL && !features.disableUpdateSettings && (

client/ui/frontend/src/modules/settings/SettingsTroubleshooting.tsx

@@ -1,6 +1,6 @@
 import { useId, type ReactNode } from "react";
 import { Trans, useTranslation } from "react-i18next";
-import { ChevronDown, CircleCheckBig, FolderOpen, Info, Loader2 } from "lucide-react";
+import { CircleCheckBig, FolderOpen, Loader2 } from "lucide-react";
 import { Browser } from "@wailsio/runtime";
 import { Debug as DebugSvc } from "@bindings/services";
 import type { DebugBundleResult } from "@bindings/services/models.js";
@@ -8,22 +8,13 @@ import { Button } from "@/components/buttons/Button";
 import { DialogActions } from "@/components/dialog/DialogActions";
 import { DialogDescription } from "@/components/dialog/DialogDescription";
 import { DialogHeading } from "@/components/dialog/DialogHeading";
-import {
-    DropdownMenu,
-    DropdownMenuContent,
-    DropdownMenuRadioGroup,
-    DropdownMenuRadioItem,
-    DropdownMenuTrigger,
-} from "@/components/DropdownMenu";
 import FancyToggleSwitch from "@/components/switches/FancyToggleSwitch";
 import HelpText from "@/components/typography/HelpText.tsx";
 import { Input } from "@/components/inputs/Input";
 import { Label } from "@/components/typography/Label";
 import { SquareIcon } from "@/components/SquareIcon";
-import { Tooltip } from "@/components/Tooltip";
-import { cn } from "@/lib/cn";
 import { formatRemaining } from "@/lib/formatters";
-import type { AnonymizeLevel, DebugStage } from "@/contexts/DebugBundleContext";
+import type { DebugStage } from "@/contexts/DebugBundleContext";
 import { useDebugBundleContext } from "@/contexts/DebugBundleContext";
 import { SectionGroup, SettingsBottomBar } from "@/modules/settings/SettingsSection.tsx";
 
@@ -33,8 +24,8 @@ export function SettingsTroubleshooting() {
     const { t } = useTranslation();
     const durationId = useId();
     const {
-        anonymizeLevel,
-        setAnonymizeLevel,
+        anonymize,
+        setAnonymize,
         systemInfo,
         setSystemInfo,
         upload,
@@ -64,71 +55,12 @@ export function SettingsTroubleshooting() {
 
     return (
         <SectionGroup title={t("settings.troubleshooting.section.title")}>
-            <div className={"flex items-center justify-between gap-6"}>
-                <div className={"max-w-md flex-1"}>
-                    <Label as={"div"}>
-                        <span className={"inline-flex items-center gap-1.5"}>
-                            {t("settings.troubleshooting.anonymize.label")}
-                            <Tooltip
-                                content={
-                                    <div className={"max-w-xs whitespace-normal leading-relaxed"}>
-                                        {t("settings.troubleshooting.anonymize.info")}
-                                    </div>
-                                }
-                            >
-                                <Info
-                                    size={14}
-                                    aria-label={t("settings.troubleshooting.anonymize.label")}
-                                    className={"shrink-0 cursor-default text-nb-gray-400"}
-                                />
-                            </Tooltip>
-                        </span>
-                    </Label>
-                    <HelpText margin={false}>
-                        {t("settings.troubleshooting.anonymize.help")}
-                    </HelpText>
-                </div>
-                <div className={"shrink-0"}>
-                    <DropdownMenu>
-                        <DropdownMenuTrigger asChild>
-                            <button
-                                type={"button"}
-                                aria-label={t("settings.troubleshooting.anonymize.label")}
-                                className={cn(
-                                    "inline-flex h-[40px] min-w-[160px] items-center justify-between gap-2 px-3",
-                                    "rounded-md border bg-white dark:bg-nb-gray-900",
-                                    "border-neutral-200 dark:border-nb-gray-700",
-                                    "cursor-default text-xs font-semibold text-nb-gray-100 outline-none",
-                                    "hover:border-nb-gray-600 data-[state=open]:border-nb-gray-600",
-                                )}
-                            >
-                                {t(`settings.troubleshooting.anonymize.${anonymizeLevel}`)}
-                                <ChevronDown
-                                    size={16}
-                                    aria-hidden={"true"}
-                                    className={"shrink-0 text-nb-gray-200"}
-                                />
-                            </button>
-                        </DropdownMenuTrigger>
-                        <DropdownMenuContent align={"end"} className={"min-w-[160px]"}>
-                            <DropdownMenuRadioGroup
-                                value={anonymizeLevel}
-                                onValueChange={(v) => setAnonymizeLevel(v as AnonymizeLevel)}
-                            >
-                                <DropdownMenuRadioItem value={"none"}>
-                                    {t("settings.troubleshooting.anonymize.none")}
-                                </DropdownMenuRadioItem>
-                                <DropdownMenuRadioItem value={"default"}>
-                                    {t("settings.troubleshooting.anonymize.default")}
-                                </DropdownMenuRadioItem>
-                                <DropdownMenuRadioItem value={"strict"}>
-                                    {t("settings.troubleshooting.anonymize.strict")}
-                                </DropdownMenuRadioItem>
-                            </DropdownMenuRadioGroup>
-                        </DropdownMenuContent>
-                    </DropdownMenu>
-                </div>
-            </div>
+            <FancyToggleSwitch
+                value={anonymize}
+                onChange={setAnonymize}
+                label={t("settings.troubleshooting.anonymize.label")}
+                helpText={t("settings.troubleshooting.anonymize.help")}
+            />
             <FancyToggleSwitch
                 value={systemInfo}
                 onChange={setSystemInfo}

client/ui/i18n/TRANSLATING.md

@@ -2,24 +2,9 @@
 
 A short brief for translating the desktop UI — for any translator, human or AI agent (*"you"* = whoever's translating).
 
-**Translations are managed on Crowdin: <https://crowdin.com/project/netbird>.** Join the project, pick your language, and translate in the editor. Each string carries a context note (the `description` from the source file) telling you what it is and where it shows up, and the project's glossary, style guide, and QA checks mirror this document.
+**Drive an agent with:** *"Read `i18n/TRANSLATING.md` and translate the UI to Russian"* — or *"…and review the existing German translation."*
 
-> 💡 **The one habit that matters most:** read each string's context before translating it. Labels are terse and ambiguous on their own; the context tells you what the string is, where it shows up, what to keep verbatim, and what it actually means.
-
----
-
-## How contributions flow
-
-```text
-i18n/locales/en/common.json ──sync──▶ Crowdin ──service PR──▶ i18n/locales/<code>/common.json
-```
-
-- `i18n/locales/en/common.json` is the source of truth. New and changed strings sync to Crowdin automatically (see `crowdin.yml` in the repository root).
-- Crowdin opens and updates a service pull request with the translated bundles, keeping the source's file shape and key order. Keys nobody has translated yet are left out of the export; the app falls back to English for them at runtime. Maintainers review and merge that PR.
-- Don't hand-edit `i18n/locales/<code>/common.json` in your own PRs: the next sync would conflict with or overwrite your changes. Translate on Crowdin instead.
-- Missing your language? Request it on the Crowdin project page or in a [GitHub discussion](https://github.com/netbirdio/netbird/discussions). When a language first ships, a maintainer adds its row to `i18n/locales/_index.json` with `code`, `displayName` (the native name), and `englishName`, which puts it in the app's language picker.
-
-**Prefer translating with an AI agent?** That still works: drive it with *"Read `i18n/TRANSLATING.md` and translate the UI to Russian"* as before, but deliver the result to Crowdin instead of a pull request. Download your language's file from the Crowdin editor, let the agent translate it, and upload it back (the editor's offline translation flow). Crowdin runs its QA checks on upload, and the next service PR carries the strings into the repo.
+> 💡 **The one habit that matters most:** read each key's `description` before translating it. Labels are terse and ambiguous on their own; the `description` tells you what the string is, where it shows up, what to keep verbatim, and what it actually means.
 
 ---
 
@@ -45,6 +30,25 @@ A **business zero-trust VPN** — an encrypted **overlay mesh** between a compan
 
 ---
 
+## The files
+
+```
+i18n/locales/_index.json         shipped-language list
+i18n/locales/en/common.json      source of truth — message + description
+i18n/locales/<code>/common.json  a target — message only
+```
+
+Chrome-extension JSON, each key → `{ "message", "description" }`. You translate the **`message`**.
+
+| ✅ Do | ❌ Don't |
+|---|---|
+| Keep **every key** from `en`, in the same order | Translate, rename, reorder, drop, or add keys (they're identifiers; the set grows over time) |
+| Put **only `message`** in target bundles | Copy `description` into a target bundle |
+| Give every key a non-empty `message` | Leave keys missing or empty |
+| Save valid UTF-8 JSON, no BOM | Add trailing commas or break the JSON |
+
+---
+
 ## Hard rules — get these exactly right
 
 These are the usual ways a translation *breaks the app*, not just reads oddly.
@@ -54,7 +58,7 @@ These are the usual ways a translation *breaks the app*, not just reads oddly.
 | Copy `{placeholders}` verbatim — `{version}`, `{count}`, `{name}`… | Translate the word inside the braces (`{verbleibend}` breaks it) |
 | Reposition a placeholder so the sentence flows | Drop or duplicate a placeholder |
 | Preserve every `\n`, leading/trailing space, and trailing `...` | Trim "invisible" spaces or the `...` (they're load-bearing) |
-| Keep `®` in WireGuard® and quotes around `{name}` | Strip punctuation the context flags |
+| Keep `®` in WireGuard® and quotes around `{name}` | Strip punctuation the description flags |
 
 **Plurals:** the app has only a *one / other* split — the singular key fires only when `count == 1`; the `{count}` key covers everything else (0, 2, 5, 100…). Languages with more than two forms (ru, pl, uk) can't be fully correct here — use the form that fits the widest range (Russian genitive plural: `минут` / `часов` / `дней`). Don't invent extra keys or cram multiple forms into one string. When no single form fits every value — a unit label after a number field, say — reach for a number-agnostic form (an abbreviation, or wording that reads the same for 1 and 100) instead of forcing a plural the *one / other* split can't supply.
 
@@ -74,15 +78,13 @@ When a brand sits beside a common noun, keep its exact spelling but join them th
 
 > **Use the word that language's IT users actually say.** Translate when a natural, common term exists; keep the English term *only* when the literal translation would be awkward or no one in that field really uses it.
 
-Apply each term **consistently** — same English term → same translation everywhere — and keep a term once you've settled it. Whether a term stays English or takes a native word is **language-dependent**: a technical loanword (e.g. *Daemon*, *Handshake*) often stays, an everyday word (e.g. *Latency*, *Public key*) usually localizes, and some (*Exit Node*, *Peer*) go either way depending on the language. Decide per term with the rule above — a foreign origin alone is no reason to keep English. **Your main reference is the existing translation:** match how a term was already rendered for your language rather than re-deciding it.
+Apply each term **consistently** — same English term → same translation everywhere — and keep a term once you've settled it. Whether a term stays English or takes a native word is **language-dependent**: a technical loanword (e.g. *Daemon*, *Handshake*) often stays, an everyday word (e.g. *Latency*, *Public key*) usually localizes, and some (*Exit Node*, *Peer*) go either way depending on the language. Decide per term with the rule above — a foreign origin alone is no reason to keep English. **Your main reference is the existing bundles:** match how a term was already rendered for your language rather than re-deciding it.
 
 Two checks before you commit a term:
 
 - **Prefer established localized wording.** If a widely used tool in this space (for example WireGuard) ships your language, its wording for a shared term such as *handshake* is what users already expect — look at the translated app, not just English docs. For generic UI verbs and formal address, follow your OS vendor's style guide (Microsoft / Apple / Google).
 - **Watch for false friends.** A literal translation can collide with a *different* established term in your field — confirm your word doesn't already mean something else in this domain before using it.
 
-These tiers are mirrored in the Crowdin project glossary, so the editor highlights them inline. When you settle a new Tier C term for your language, add its translation to the glossary entry so it sticks for everyone who comes after you.
-
 ---
 
 ## Style
@@ -96,7 +98,7 @@ These tiers are mirrored in the Crowdin project glossary, so the editor highligh
 
 Where it reads naturally, aim to keep each string **roughly the same length** as the English — the UI is tight and over-long strings can wrap or truncate. It's a soft preference, not a rule: if your language simply needs more words, use them.
 
-A few habits that keep a translation reading like one product rather than a word-for-word port:
+A few habits that keep a bundle reading like one product rather than a word-for-word port:
 
 - **Translate meaning, not words.** Render what a string *does*. An idiom or an awkward source phrase should become natural in your language, not a literal calque.
 - **Keep one voice within a family.** Sibling strings — the connection states, every settings *help* caption, every "… Failed" title — should share a grammatical form. If one member sounds wrong in that form, re-voice the whole family rather than leave one odd sibling.
@@ -105,26 +107,27 @@ A few habits that keep a translation reading like one product rather than a word
 
 ---
 
-## Reviewing a language
+## Procedure
 
-**On Crowdin:** proofread in the editor — context, glossary highlights, and QA flags sit inline next to each string.
+**New language** — read `en/common.json` *with* descriptions → settle your Tier C terms → write `i18n/locales/<code>/common.json` (same keys and order as `en`, `message` only, placeholders & brands preserved) → add a row to `_index.json` (`{"code","displayName"` = native name`,"englishName"}`) → run the QA list. Use the locale-code style the existing entries use (e.g. `fr`, `pt`, `zh-CN`).
 
-**In the repo** — e.g. driving an AI agent with *"Read `i18n/TRANSLATING.md` and review the existing German translation"* — read source and target side by side; for each key check glossary conformance (e.g. de `Exit-Node` → `Exit Node`, hu `Kilépő csomópont` → `Exit Node`), placeholder/`\n` integrity, consistency, tone, and that the meaning matches the English `description`. Report what you found, and apply the fixes **on Crowdin** — direct edits to the locale files are overwritten by the next sync.
+**Review (de / hu / …)** — read source and target side by side; for each key check glossary conformance (e.g. de `Exit-Node` → `Exit Node`, hu `Kilépő csomópont` → `Exit Node`), placeholder/`\n` integrity, consistency, tone, and that the meaning matches the English `description`. Fix in place, then report what you changed (especially term standardizations) so a native speaker can sanity-check.
 
 ---
 
 ## QA before you finish
 
+- [ ] Valid JSON · **every `en` key** present, same order · **no `description`** fields
 - [ ] Every `{placeholder}`, `\n`, and intentional space preserved · `...` / `… Failed` / `{name}` quotes kept
-- [ ] Tier A/B left intact · Tier C applied consistently (and matching the existing translation for your language)
+- [ ] Tier A/B left intact · Tier C applied consistently (and matching the existing bundle for your language)
 - [ ] Buttons & tray short · locale punctuation and capitalization applied
-- [ ] Crowdin QA flags resolved (variables, glossary terms, punctuation)
+- [ ] New language added to `_index.json`
 - [ ] **Tested in the running app** ↓
 
 ---
 
 ## Test it in the app
 
-A translation can pass every check above and still read wrong on screen. **Run the app, switch to your language, and click through the real surfaces** — tray menu, main window, every Settings tab, the dialogs. Watch for text overflow or truncation, labels that are technically right but wrong *for what the control does*, leaked placeholders, and terms that drift between screens.
+A bundle can pass every check above and still read wrong on screen. **Run the app, switch to your language, and click through the real surfaces** — tray menu, main window, every Settings tab, the dialogs. Watch for text overflow or truncation, labels that are technically right but wrong *for what the control does*, leaked placeholders, and terms that drift between screens.
 
 How to run the app and switch language: see the project README. Can't run it (e.g. a headless agent)? Say so in your summary — don't silently skip this step.

client/ui/i18n/locales/de/common.json

@@ -551,14 +551,6 @@
     "settings.general.autostart.errorTitle": {
         "message": "Ändern des Autostarts fehlgeschlagen"
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "Nach dem Beenden verbunden bleiben",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "Die Verbindung bleibt im Hintergrund bestehen, nachdem Sie NetBird schließen. Sie endet erst, wenn Sie sie selbst trennen.",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "Anzeigesprache"
     },

client/ui/i18n/locales/en/common.json

@@ -735,14 +735,6 @@
         "message": "Autostart Change Failed",
         "description": "Error-dialog title when changing the autostart setting fails."
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "Stay Connected After Quitting",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "The connection stays up in the background after you close NetBird. It only stops when you disconnect it yourself.",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "Display Language",
         "description": "Label for the display-language picker."
@@ -1013,27 +1005,11 @@
     },
     "settings.troubleshooting.anonymize.label": {
         "message": "Anonymize Sensitive Information",
-        "description": "Label for the anonymization level dropdown (None, Default, Strict)."
+        "description": "Toggle label: anonymize sensitive information in the bundle."
     },
     "settings.troubleshooting.anonymize.help": {
-        "message": "Hides IP addresses, domains, and other sensitive values.",
-        "description": "Helper text under the anonymization dropdown. The level details live in the info tooltip."
-    },
-    "settings.troubleshooting.anonymize.info": {
-        "message": "Default keeps internal IPv4 addresses and peer names readable for support. Strict additionally anonymizes private (RFC 1918), CGNAT, and link-local IP addresses, peer names, and WireGuard public keys. Recurring values map to the same placeholder, so peers stay distinguishable. Use Strict when sharing the bundle outside your organization.",
-        "description": "Info tooltip explaining the anonymization levels. 'RFC 1918', 'CGNAT', 'link-local', and 'WireGuard' are technical terms — keep them."
-    },
-    "settings.troubleshooting.anonymize.none": {
-        "message": "None",
-        "description": "Dropdown option: no anonymization."
-    },
-    "settings.troubleshooting.anonymize.default": {
-        "message": "Default",
-        "description": "Dropdown option: default anonymization level."
-    },
-    "settings.troubleshooting.anonymize.strict": {
-        "message": "Strict",
-        "description": "Dropdown option: strict anonymization level."
+        "message": "Hides public IP addresses and non-NetBird domains from logs.",
+        "description": "Helper text for anonymizing logs (hides public IPs and non-NetBird domains)."
     },
     "settings.troubleshooting.systemInfo.label": {
         "message": "Include System Information",

client/ui/i18n/locales/es/common.json

@@ -551,14 +551,6 @@
     "settings.general.autostart.errorTitle": {
         "message": "Error al cambiar el inicio automático"
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "Permanecer conectado al salir",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "La conexión sigue activa en segundo plano después de cerrar NetBird. Solo se detiene cuando la desconectas tú.",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "Idioma de la interfaz"
     },

client/ui/i18n/locales/fr/common.json

@@ -551,14 +551,6 @@
     "settings.general.autostart.errorTitle": {
         "message": "Échec de la modification du démarrage automatique"
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "Rester connecté après la fermeture",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "La connexion reste active en arrière-plan après la fermeture de NetBird. Elle ne s'arrête que si vous la coupez vous-même.",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "Langue d’affichage"
     },

client/ui/i18n/locales/hu/common.json

@@ -551,14 +551,6 @@
     "settings.general.autostart.errorTitle": {
         "message": "Az automatikus indítás módosítása sikertelen"
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "Kapcsolat megtartása kilépéskor",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "A kapcsolat a háttérben megmarad, miután bezárod a NetBirdöt. Csak akkor szakad meg, ha te magad bontod.",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "Megjelenítési nyelv"
     },

client/ui/i18n/locales/it/common.json

@@ -551,14 +551,6 @@
     "settings.general.autostart.errorTitle": {
         "message": "Modifica avvio automatico non riuscita"
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "Resta connesso dopo la chiusura",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "La connessione resta attiva in background dopo la chiusura di NetBird. Si interrompe solo quando la disconnetti tu.",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "Lingua dell'interfaccia"
     },

client/ui/i18n/locales/ja/common.json

@@ -551,14 +551,6 @@
     "settings.general.autostart.errorTitle": {
         "message": "自動起動の変更に失敗しました"
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "終了後も接続を維持",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "NetBird を閉じたあとも接続はバックグラウンドで維持されます。自分で切断したときにだけ停止します。",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "表示言語"
     },

client/ui/i18n/locales/pt/common.json

@@ -551,14 +551,6 @@
     "settings.general.autostart.errorTitle": {
         "message": "Falha ao alterar o início automático"
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "Permanecer conectado ao sair",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "A conexão continua ativa em segundo plano depois de fechar o NetBird. Ela só para quando você mesmo a desconecta.",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "Idioma de exibição"
     },

client/ui/i18n/locales/ru/common.json

@@ -551,14 +551,6 @@
     "settings.general.autostart.errorTitle": {
         "message": "Не удалось изменить автозапуск"
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "Оставаться подключённым после выхода",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "Соединение остаётся активным в фоне после закрытия NetBird. Оно прервётся, только когда вы отключите его сами.",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "Язык интерфейса"
     },

client/ui/i18n/locales/zh-CN/common.json

@@ -551,14 +551,6 @@
     "settings.general.autostart.errorTitle": {
         "message": "更改自启动设置失败"
     },
-    "settings.general.keepConnectedOnQuit.label": {
-        "message": "退出后保持连接",
-        "description": "Toggle label: keep the VPN connection up after quitting the UI."
-    },
-    "settings.general.keepConnectedOnQuit.help": {
-        "message": "关闭 NetBird 后，连接会在后台保持。只有你自己断开时才会停止。",
-        "description": "Helper text for the stay-connected-after-quitting toggle."
-    },
     "settings.general.language.label": {
         "message": "显示语言"
     },

client/ui/main.go

@@ -180,7 +180,6 @@ func main() {
 		WindowManager:   windowManager,
 		Session:         authSession,
 		Localizer:       localizer,
-		Preferences:     prefStore,
 	})
 	listenForShowSignal(context.Background(), tray)