add todos

.editorconfig

@@ -1,8 +0,0 @@
-root = true
-
-[*]
-end_of_line = lf
-insert_final_newline = true
-
-[*.go]
-indent_style = tab

.github/ISSUE_TEMPLATE/bug-issue-report.md

@@ -31,14 +31,9 @@ Please specify whether you use NetBird Cloud or self-host NetBird's control plan
 
 `netbird version`
 
-**NetBird status -dA output:**
+**NetBird status -d output:**
 
-If applicable, add the `netbird status -dA' command output.
-
-**Do you face any (non-mobile) client issues?**
-
-Please provide the file created by `netbird debug for 1m -AS`.
-We advise reviewing the anonymized files for any remaining PII.
+If applicable, add the `netbird status -d' command output.
 
 **Screenshots**
 

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

@@ -18,14 +18,14 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: Install Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23.x"
+          go-version: "1.21.x"
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Cache Go modules
-        uses: actions/cache@v4
+        uses: actions/cache@v3
         with:
           path: ~/go/pkg/mod
           key: macos-go-${{ hashFiles('**/go.sum') }}

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

@@ -13,7 +13,7 @@ concurrency:
 
 jobs:
   test:
-    runs-on: ubuntu-22.04
+    runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
       - name: Test in FreeBSD
@@ -21,26 +21,19 @@ jobs:
         uses: vmactions/freebsd-vm@v1
         with:
           usesh: true
-          copyback: false
-          release: "14.1"
           prepare: |
-            pkg install -y go
+            pkg install -y curl
+            pkg install -y git
 
-          # -x - to print all executed commands
-          # -e - to faile on first error
           run: |
-            set -e -x
-            time go build -o netbird client/main.go
-            # check all component except management, since we do not support management server on freebsd
-            time go test -timeout 1m -failfast ./base62/...
-            # NOTE: without -p1 `client/internal/dns` will fail becasue of `listen udp4 :33100: bind: address already in use`
-            time go test -timeout 8m -failfast -p 1 ./client/...
-            time go test -timeout 1m -failfast ./dns/...
-            time go test -timeout 1m -failfast ./encryption/...
-            time go test -timeout 1m -failfast ./formatter/...
-            time go test -timeout 1m -failfast ./client/iface/...
-            time go test -timeout 1m -failfast ./route/...
-            time go test -timeout 1m -failfast ./sharedsock/...
-            time go test -timeout 1m -failfast ./signal/...
-            time go test -timeout 1m -failfast ./util/...
-            time go test -timeout 1m -failfast ./version/...
+            set -x
+            curl -o go.tar.gz https://go.dev/dl/go1.21.11.freebsd-amd64.tar.gz -L
+            tar zxf go.tar.gz
+            mv go /usr/local/go
+            ln -s /usr/local/go/bin/go /usr/local/bin/go
+            go mod tidy
+            go test -timeout 5m -p 1 ./iface/...
+            go test -timeout 5m -p 1 ./client/... 
+            cd client
+            go build .
+            cd ..

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

@@ -19,13 +19,13 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Install Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23.x"
+          go-version: "1.21.x"
 
 
       - name: Cache Go modules
-        uses: actions/cache@v4
+        uses: actions/cache@v3
         with:
           path: ~/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
@@ -33,7 +33,7 @@ jobs:
             ${{ runner.os }}-go-
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Install dependencies
         run: sudo apt update && sudo apt install -y -q libgtk-3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev gcc-multilib libpcap-dev
@@ -49,18 +49,18 @@ jobs:
         run: git --no-pager diff --exit-code
 
       - name: Test
-        run: CGO_ENABLED=1 GOARCH=${{ matrix.arch }} NETBIRD_STORE_ENGINE=${{ matrix.store }} go test -exec 'sudo --preserve-env=CI,NETBIRD_STORE_ENGINE' -timeout 6m -p 1 ./...
+        run: CGO_ENABLED=1 GOARCH=${{ matrix.arch }} NETBIRD_STORE_ENGINE=${{ matrix.store }} go test -exec 'sudo --preserve-env=CI,NETBIRD_STORE_ENGINE' -timeout 5m -p 1 ./...
 
   test_client_on_docker:
     runs-on: ubuntu-20.04
     steps:
       - name: Install Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23.x"
+          go-version: "1.21.x"
 
       - name: Cache Go modules
-        uses: actions/cache@v4
+        uses: actions/cache@v3
         with:
           path: ~/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
@@ -68,7 +68,7 @@ jobs:
             ${{ runner.os }}-go-
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Install dependencies
         run: sudo apt update && sudo apt install -y -q libgtk-3-dev libayatana-appindicator3-dev libgl1-mesa-dev xorg-dev gcc-multilib libpcap-dev
@@ -80,7 +80,7 @@ jobs:
         run: git --no-pager diff --exit-code
 
       - name: Generate Iface Test bin
-        run: CGO_ENABLED=0 go test -c -o iface-testing.bin ./client/iface/
+        run: CGO_ENABLED=0 go test -c -o iface-testing.bin ./iface/
 
       - name: Generate Shared Sock Test bin
         run: CGO_ENABLED=0 go test -c -o sharedsock-testing.bin ./sharedsock
@@ -124,4 +124,4 @@ jobs:
         run: docker run -t --cap-add=NET_ADMIN --privileged --rm -v $PWD:/ci -w /ci/client/internal -e NETBIRD_STORE_ENGINE="sqlite" --entrypoint /busybox/sh gcr.io/distroless/base:debug -c /ci/engine-testing.bin  -test.timeout 5m -test.parallel 1
 
       - name: Run Peer tests in docker
-        run: docker run -t --cap-add=NET_ADMIN --privileged --rm -v $PWD:/ci -w /ci/client/internal/peer  --entrypoint /busybox/sh gcr.io/distroless/base:debug -c /ci/peer-testing.bin  -test.timeout 5m -test.parallel 1
+        run: docker run -t --cap-add=NET_ADMIN --privileged --rm -v $PWD:/ci -w /ci/client/internal/peer  --entrypoint /busybox/sh gcr.io/distroless/base:debug -c /ci/peer-testing.bin  -test.timeout 5m -test.parallel 1

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

@@ -17,13 +17,13 @@ jobs:
     runs-on: windows-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: Install Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v4
         id: go
         with:
-          go-version: "1.23.x"
+          go-version: "1.21.x"
 
       - name: Download wintun
         uses: carlosperate/download-file-action@v2

.github/workflows/golangci-lint.yml

@@ -15,11 +15,11 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
       - name: codespell
         uses: codespell-project/actions-codespell@v2
         with:
-          ignore_words_list: erro,clienta,hastable,iif
+          ignore_words_list: erro,clienta,hastable,
           skip: go.mod,go.sum
           only_warn: 1
   golangci:
@@ -32,15 +32,15 @@ jobs:
     timeout-minutes: 15
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
       - name: Check for duplicate constants
         if: matrix.os == 'ubuntu-latest'
         run: |
           ! awk '/const \(/,/)/{print $0}' management/server/activity/codes.go | grep -o '= [0-9]*' | sort | uniq -d | grep .
       - name: Install Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23.x"
+          go-version: "1.21.x"
           cache: false
       - name: Install dependencies
         if: matrix.os == 'ubuntu-latest'
@@ -49,4 +49,4 @@ jobs:
         uses: golangci/golangci-lint-action@v3
         with:
           version: latest
-          args: --timeout=12m
+          args: --timeout=12m

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

@@ -13,7 +13,6 @@ concurrency:
 jobs:
   test-install-script:
     strategy:
-      fail-fast: false
       max-parallel: 2
       matrix:
         os: [ubuntu-latest, macos-latest]
@@ -22,7 +21,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     steps:
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: run install script
         env:

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

@@ -15,23 +15,23 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
       - name: Install Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23.x"
+          go-version: "1.21.x"
       - name: Setup Android SDK
         uses: android-actions/setup-android@v3
         with:
           cmdline-tools-version: 8512546
       - name: Setup Java
-        uses: actions/setup-java@v4
+        uses: actions/setup-java@v3
         with:
           java-version: "11"
           distribution: "adopt"
       - name: NDK Cache
         id: ndk-cache
-        uses: actions/cache@v4
+        uses: actions/cache@v3
         with:
           path: /usr/local/lib/android/sdk/ndk
           key: ndk-cache-23.1.7779620
@@ -50,11 +50,11 @@ jobs:
     runs-on: macos-latest
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
       - name: Install Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23.x"
+          go-version: "1.21.x"
       - name: install gomobile
         run: go install golang.org/x/mobile/cmd/gomobile@v0.0.0-20240404231514-09dbf07665ed
       - name: gomobile init
@@ -62,4 +62,4 @@ jobs:
       - name: build iOS netbird lib
         run: PATH=$PATH:$(go env GOPATH) gomobile bind -target=ios -bundleid=io.netbird.framework -ldflags="-X github.com/netbirdio/netbird/version.version=buildtest" -o ./NetBirdSDK.xcframework ./client/ios/NetBirdSDK
         env:
-          CGO_ENABLED: 0
+          CGO_ENABLED: 0

.github/workflows/release.yml

@@ -3,16 +3,15 @@ name: Release
 on:
   push:
     tags:
-      - "v*"
+      - 'v*'
     branches:
       - main
   pull_request:
 
+
 env:
-  SIGN_PIPE_VER: "v0.0.14"
-  GORELEASER_VER: "v2.3.2"
-  PRODUCT_NAME: "NetBird"
-  COPYRIGHT: "Wiretrustee UG (haftungsbeschreankt)"
+  SIGN_PIPE_VER: "v0.0.11"
+  GORELEASER_VER: "v1.14.1"
 
 concurrency:
   group: ${{ github.workflow }}-${{ github.ref }}-${{ github.head_ref || github.actor_id }}
@@ -24,26 +23,22 @@ jobs:
     env:
       flags: ""
     steps:
-      - name: Parse semver string
-        id: semver_parser
-        uses: booxmedialtd/ws-action-parse-semver@v1
-        with:
-          input_string: ${{ (startsWith(github.ref, 'refs/tags/v') && github.ref) || 'refs/tags/v0.0.0' }}
-          version_extractor_regex: '\/v(.*)$'
-
       - if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
         run: echo "flags=--snapshot" >> $GITHUB_ENV
-      - name: Checkout
-        uses: actions/checkout@v4
+      -
+        name: Checkout
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # It is required for GoReleaser to work properly
-      - name: Set up Go
-        uses: actions/setup-go@v5
+      -
+        name: Set up Go
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23"
+          go-version: "1.21"
           cache: false
-      - name: Cache Go modules
-        uses: actions/cache@v4
+      -
+        name: Cache Go modules
+        uses: actions/cache@v3
         with:
           path: |
             ~/go/pkg/mod
@@ -51,57 +46,73 @@ jobs:
           key: ${{ runner.os }}-go-releaser-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-go-releaser-
-      - name: Install modules
+      -
+        name: Install modules
         run: go mod tidy
-      - name: check git status
+      -
+        name: check git status
         run: git --no-pager diff --exit-code
-      - name: Set up QEMU
+      -
+        name: Set up QEMU
         uses: docker/setup-qemu-action@v2
-      - name: Set up Docker Buildx
+      -
+        name: Set up Docker Buildx
         uses: docker/setup-buildx-action@v2
-      - name: Login to Docker hub
+      -
+        name: Login to Docker hub
         if: github.event_name != 'pull_request'
         uses: docker/login-action@v1
         with:
-          username: ${{ secrets.DOCKER_USER }}
+          username: netbirdio
           password: ${{ secrets.DOCKER_TOKEN }}
       - name: Install OS build dependencies
         run: sudo apt update && sudo apt install -y -q gcc-arm-linux-gnueabihf gcc-aarch64-linux-gnu
 
-      - name: Install goversioninfo
-        run: go install github.com/josephspurrier/goversioninfo/cmd/goversioninfo@233067e
-      - name: Generate windows syso amd64
-        run: goversioninfo  -icon client/ui/netbird.ico -manifest client/manifest.xml -product-name ${{ env.PRODUCT_NAME }} -copyright "${{ env.COPYRIGHT }}" -ver-major ${{ steps.semver_parser.outputs.major }} -ver-minor ${{ steps.semver_parser.outputs.minor }} -ver-patch ${{ steps.semver_parser.outputs.patch }} -ver-build 0 -file-version ${{ steps.semver_parser.outputs.fullversion }}.0 -product-version ${{ steps.semver_parser.outputs.fullversion }}.0 -o client/resources_windows_amd64.syso
-      - name: Run GoReleaser
+      - name: Install rsrc
+        run: go install github.com/akavel/rsrc@v0.10.2
+      - name: Generate windows rsrc amd64
+        run: rsrc -arch amd64 -ico client/ui/netbird.ico -manifest client/manifest.xml -o client/resources_windows_amd64.syso
+      - name: Generate windows rsrc arm64
+        run: rsrc -arch arm64 -ico client/ui/netbird.ico -manifest client/manifest.xml -o client/resources_windows_arm64.syso
+      - name: Generate windows rsrc arm
+        run: rsrc -arch arm -ico client/ui/netbird.ico -manifest client/manifest.xml -o client/resources_windows_arm.syso
+      - name: Generate windows rsrc 386
+        run: rsrc -arch 386 -ico client/ui/netbird.ico -manifest client/manifest.xml -o client/resources_windows_386.syso
+      -
+        name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v4
         with:
           version: ${{ env.GORELEASER_VER }}
-          args: release --clean ${{ env.flags }}
+          args: release --rm-dist ${{ env.flags }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           HOMEBREW_TAP_GITHUB_TOKEN: ${{ secrets.HOMEBREW_TAP_GITHUB_TOKEN }}
           UPLOAD_DEBIAN_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
           UPLOAD_YUM_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
-      - name: upload non tags for debug purposes
-        uses: actions/upload-artifact@v4
+      -
+        name: upload non tags for debug purposes
+        uses: actions/upload-artifact@v3
         with:
           name: release
           path: dist/
           retention-days: 3
-      - name: upload linux packages
-        uses: actions/upload-artifact@v4
+      -
+        name: upload linux packages
+        uses: actions/upload-artifact@v3
         with:
           name: linux-packages
           path: dist/netbird_linux**
           retention-days: 3
-      - name: upload windows packages
-        uses: actions/upload-artifact@v4
+      -
+        name: upload windows packages
+        uses: actions/upload-artifact@v3
         with:
           name: windows-packages
           path: dist/netbird_windows**
           retention-days: 3
-      - name: upload macos packages
-        uses: actions/upload-artifact@v4
+      -
+        name: upload macos packages
+        uses: actions/upload-artifact@v3
         with:
           name: macos-packages
           path: dist/netbird_darwin**
@@ -110,29 +121,22 @@ jobs:
   release_ui:
     runs-on: ubuntu-latest
     steps:
-      - name: Parse semver string
-        id: semver_parser
-        uses: booxmedialtd/ws-action-parse-semver@v1
-        with:
-          input_string: ${{ (startsWith(github.ref, 'refs/tags/v') && github.ref) || 'refs/tags/v0.0.0' }}
-          version_extractor_regex: '\/v(.*)$'
-
       - if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
         run: echo "flags=--snapshot" >> $GITHUB_ENV
       - name: Checkout
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # It is required for GoReleaser to work properly
 
       - name: Set up Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23"
+          go-version: "1.21"
           cache: false
       - name: Cache Go modules
-        uses: actions/cache@v4
+        uses: actions/cache@v3
         with:
-          path: |
+          path: | 
             ~/go/pkg/mod
             ~/.cache/go-build
           key: ${{ runner.os }}-ui-go-releaser-${{ hashFiles('**/go.sum') }}
@@ -147,23 +151,22 @@ jobs:
 
       - name: Install dependencies
         run: sudo apt update && sudo apt install -y -q libappindicator3-dev gir1.2-appindicator3-0.1 libxxf86vm-dev gcc-mingw-w64-x86-64
-      - name: Install goversioninfo
-        run: go install github.com/josephspurrier/goversioninfo/cmd/goversioninfo@233067e
-      - name: Generate windows syso amd64
-        run: goversioninfo -64 -icon client/ui/netbird.ico -manifest client/ui/manifest.xml -product-name ${{ env.PRODUCT_NAME }}-"UI" -copyright "${{ env.COPYRIGHT }}" -ver-major ${{ steps.semver_parser.outputs.major }} -ver-minor ${{ steps.semver_parser.outputs.minor }} -ver-patch ${{ steps.semver_parser.outputs.patch }} -ver-build 0 -file-version ${{ steps.semver_parser.outputs.fullversion }}.0 -product-version ${{ steps.semver_parser.outputs.fullversion }}.0 -o client/ui/resources_windows_amd64.syso
-
+      - name: Install rsrc
+        run: go install github.com/akavel/rsrc@v0.10.2
+      - name: Generate windows rsrc
+        run: rsrc -arch amd64 -ico client/ui/netbird.ico -manifest client/ui/manifest.xml -o client/ui/resources_windows_amd64.syso
       - name: Run GoReleaser
         uses: goreleaser/goreleaser-action@v4
         with:
           version: ${{ env.GORELEASER_VER }}
-          args: release --config .goreleaser_ui.yaml --clean ${{ env.flags }}
+          args: release --config .goreleaser_ui.yaml --rm-dist ${{ env.flags }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
           HOMEBREW_TAP_GITHUB_TOKEN: ${{ secrets.HOMEBREW_TAP_GITHUB_TOKEN }}
           UPLOAD_DEBIAN_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
           UPLOAD_YUM_SECRET: ${{ secrets.PKG_UPLOAD_SECRET }}
       - name: upload non tags for debug purposes
-        uses: actions/upload-artifact@v4
+        uses: actions/upload-artifact@v3
         with:
           name: release-ui
           path: dist/
@@ -174,17 +177,20 @@ jobs:
     steps:
       - if: ${{ !startsWith(github.ref, 'refs/tags/v') }}
         run: echo "flags=--snapshot" >> $GITHUB_ENV
-      - name: Checkout
-        uses: actions/checkout@v4
+      -
+        name: Checkout
+        uses: actions/checkout@v3
         with:
           fetch-depth: 0 # It is required for GoReleaser to work properly
-      - name: Set up Go
-        uses: actions/setup-go@v5
+      -
+        name: Set up Go
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23"
+          go-version: "1.21"
           cache: false
-      - name: Cache Go modules
-        uses: actions/cache@v4
+      -
+        name: Cache Go modules
+        uses: actions/cache@v3
         with:
           path: |
             ~/go/pkg/mod
@@ -192,34 +198,52 @@ jobs:
           key: ${{ runner.os }}-ui-go-releaser-darwin-${{ hashFiles('**/go.sum') }}
           restore-keys: |
             ${{ runner.os }}-ui-go-releaser-darwin-
-      - name: Install modules
+      -
+        name: Install modules
         run: go mod tidy
-      - name: check git status
+      - 
+        name: check git status
         run: git --no-pager diff --exit-code
-      - name: Run GoReleaser
+      -
+        name: Run GoReleaser
         id: goreleaser
         uses: goreleaser/goreleaser-action@v4
         with:
           version: ${{ env.GORELEASER_VER }}
-          args: release --config .goreleaser_ui_darwin.yaml --clean ${{ env.flags }}
+          args: release --config .goreleaser_ui_darwin.yaml --rm-dist ${{ env.flags }}
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - name: upload non tags for debug purposes
-        uses: actions/upload-artifact@v4
+      -
+        name: upload non tags for debug purposes
+        uses: actions/upload-artifact@v3
         with:
           name: release-ui-darwin
           path: dist/
           retention-days: 3
 
-  trigger_signer:
+  trigger_windows_signer:
     runs-on: ubuntu-latest
-    needs: [release, release_ui, release_ui_darwin]
+    needs: [release,release_ui]
     if: startsWith(github.ref, 'refs/tags/')
     steps:
-      - name: Trigger binaries sign pipelines
+      - name: Trigger Windows binaries sign pipeline
         uses: benc-uk/workflow-dispatch@v1
         with:
-          workflow: Sign bin and installer
+          workflow: Sign windows bin and installer
+          repo: netbirdio/sign-pipelines
+          ref: ${{ env.SIGN_PIPE_VER }}
+          token: ${{ secrets.SIGN_GITHUB_TOKEN }}
+          inputs: '{ "tag": "${{ github.ref }}" }'
+
+  trigger_darwin_signer:
+    runs-on: ubuntu-latest
+    needs: [release,release_ui_darwin]
+    if: startsWith(github.ref, 'refs/tags/')
+    steps:
+      - name: Trigger Darwin App binaries sign pipeline
+        uses: benc-uk/workflow-dispatch@v1
+        with:
+          workflow: Sign darwin ui app with dispatch
           repo: netbirdio/sign-pipelines
           ref: ${{ env.SIGN_PIPE_VER }}
           token: ${{ secrets.SIGN_GITHUB_TOKEN }}

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

@@ -18,31 +18,7 @@ concurrency:
 jobs:
   test-docker-compose:
     runs-on: ubuntu-latest
-    strategy:
-      matrix:
-        store: [ 'sqlite', 'postgres' ]
-    services:
-      postgres:
-        image: ${{ (matrix.store == 'postgres') && 'postgres' || '' }}
-        env:
-          POSTGRES_USER: netbird
-          POSTGRES_PASSWORD: postgres
-          POSTGRES_DB: netbird
-        options: >-
-          --health-cmd pg_isready
-          --health-interval 10s
-          --health-timeout 5s
-        ports:
-          - 5432:5432
     steps:
-      - name: Set Database Connection String
-        run: |
-          if [ "${{ matrix.store }}" == "postgres" ]; then
-            echo "NETBIRD_STORE_ENGINE_POSTGRES_DSN=host=$(hostname -I | awk '{print $1}') user=netbird password=postgres dbname=netbird port=5432" >> $GITHUB_ENV
-          else
-            echo "NETBIRD_STORE_ENGINE_POSTGRES_DSN==" >> $GITHUB_ENV
-          fi
-
       - name: Install jq
         run: sudo apt-get install -y jq
 
@@ -50,12 +26,12 @@ jobs:
         run: sudo apt-get install -y curl
 
       - name: Install Go
-        uses: actions/setup-go@v5
+        uses: actions/setup-go@v4
         with:
-          go-version: "1.23.x"
+          go-version: "1.21.x"
 
       - name: Cache Go modules
-        uses: actions/cache@v4
+        uses: actions/cache@v3
         with:
           path: ~/go/pkg/mod
           key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
@@ -63,7 +39,7 @@ jobs:
             ${{ runner.os }}-go-
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: cp setup.env
         run: cp infrastructure_files/tests/setup.env infrastructure_files/
@@ -82,8 +58,7 @@ jobs:
           CI_NETBIRD_IDP_MGMT_CLIENT_ID: testing.client.id
           CI_NETBIRD_IDP_MGMT_CLIENT_SECRET: testing.client.secret
           CI_NETBIRD_AUTH_SUPPORTED_SCOPES: "openid profile email offline_access api email_verified"
-          CI_NETBIRD_STORE_CONFIG_ENGINE: ${{ matrix.store }}
-          NETBIRD_STORE_ENGINE_POSTGRES_DSN: ${{ env.NETBIRD_STORE_ENGINE_POSTGRES_DSN }}
+          CI_NETBIRD_STORE_CONFIG_ENGINE: "sqlite"
           CI_NETBIRD_MGMT_IDP_SIGNKEY_REFRESH: false
 
       - name: check values
@@ -110,8 +85,7 @@ jobs:
           CI_NETBIRD_IDP_MGMT_CLIENT_ID: testing.client.id
           CI_NETBIRD_IDP_MGMT_CLIENT_SECRET: testing.client.secret
           CI_NETBIRD_SIGNAL_PORT: 12345
-          CI_NETBIRD_STORE_CONFIG_ENGINE: ${{ matrix.store }}
-          NETBIRD_STORE_ENGINE_POSTGRES_DSN: '${{ env.NETBIRD_STORE_ENGINE_POSTGRES_DSN }}$'
+          CI_NETBIRD_STORE_CONFIG_ENGINE: "sqlite"
           CI_NETBIRD_MGMT_IDP_SIGNKEY_REFRESH: false
           CI_NETBIRD_TURN_EXTERNAL_IP: "1.2.3.4"
 
@@ -149,14 +123,6 @@ jobs:
           grep -A 10 PKCEAuthorizationFlow management.json | grep -A 10 ProviderConfig | grep Scope | grep "$CI_NETBIRD_AUTH_SUPPORTED_SCOPES"
           grep -A 10 PKCEAuthorizationFlow management.json | grep -A 10 ProviderConfig | grep -A 3 RedirectURLs | grep "http://localhost:53000"
           grep "external-ip" turnserver.conf | grep $CI_NETBIRD_TURN_EXTERNAL_IP
-          grep NETBIRD_STORE_ENGINE_POSTGRES_DSN docker-compose.yml | egrep "$NETBIRD_STORE_ENGINE_POSTGRES_DSN"
-          # check relay values
-          grep "NB_EXPOSED_ADDRESS=$CI_NETBIRD_DOMAIN:33445" docker-compose.yml
-          grep "NB_LISTEN_ADDRESS=:33445" docker-compose.yml
-          grep '33445:33445' docker-compose.yml
-          grep -A 10 'relay:' docker-compose.yml | egrep 'NB_AUTH_SECRET=.+$'
-          grep -A 7 Relay management.json | grep "rel://$CI_NETBIRD_DOMAIN:33445"
-          grep -A 7 Relay management.json | egrep '"Secret": ".+"'
 
       - name: Install modules
         run: go mod tidy
@@ -182,35 +148,26 @@ jobs:
         run: |
           docker build -t netbirdio/signal:latest .
 
-      - name: Build relay binary
-        working-directory: relay
-        run: CGO_ENABLED=0 go build -o netbird-relay main.go
-
-      - name: Build relay docker image
-        working-directory: relay
-        run: |
-          docker build -t netbirdio/relay:latest .
-
       - name: run docker compose up
         working-directory: infrastructure_files/artifacts
         run: |
-          docker compose up -d
+          docker-compose up -d
           sleep 5
-          docker compose ps
-          docker compose logs --tail=20
+          docker-compose ps
+          docker-compose logs --tail=20
 
       - name: test running containers
         run: |
           count=$(docker compose ps --format json | jq '. | select(.Name | contains("artifacts")) | .State' | grep -c running)
-          test $count -eq 5 || docker compose logs
+          test $count -eq 4
         working-directory: infrastructure_files/artifacts
 
       - name: test geolocation databases
         working-directory: infrastructure_files/artifacts
         run: |
           sleep 30
-          docker compose exec management ls -l /var/lib/netbird/ | grep -i GeoLite2-City_[0-9]*.mmdb
-          docker compose exec management ls -l /var/lib/netbird/ | grep -i geonames_[0-9]*.db
+          docker compose exec management ls -l /var/lib/netbird/ | grep -i GeoLite2-City.mmdb
+          docker compose exec management ls -l /var/lib/netbird/ | grep -i geonames.db
 
   test-getting-started-script:
     runs-on: ubuntu-latest
@@ -219,7 +176,7 @@ jobs:
         run: sudo apt-get install -y jq
 
       - name: Checkout code
-        uses: actions/checkout@v4
+        uses: actions/checkout@v3
 
       - name: run script with Zitadel PostgreSQL
         run: NETBIRD_DOMAIN=use-ip bash -x infrastructure_files/getting-started-with-zitadel.sh
@@ -234,7 +191,7 @@ jobs:
         run: test -f management.json
 
       - name: test turnserver.conf file gen postgres
-        run: |
+        run: | 
           set -x
           test -f turnserver.conf
           grep external-ip turnserver.conf
@@ -245,15 +202,12 @@ jobs:
       - name: test dashboard.env file gen postgres
         run: test -f dashboard.env
 
-      - name: test relay.env file gen postgres
-        run: test -f relay.env
-
       - name: test zdb.env file gen postgres
         run: test -f zdb.env
 
       - name: Postgres run cleanup
         run: |
-          docker compose down --volumes --rmi all
+          docker-compose down --volumes --rmi all
           rm -rf docker-compose.yml Caddyfile zitadel.env dashboard.env machinekey/zitadel-admin-sa.token turnserver.conf management.json zdb.env
 
       - name: run script with Zitadel CockroachDB
@@ -272,7 +226,7 @@ jobs:
         run: test -f management.json
 
       - name: test turnserver.conf file gen CockroachDB
-        run: |
+        run: | 
           set -x
           test -f turnserver.conf
           grep external-ip turnserver.conf
@@ -283,5 +237,20 @@ jobs:
       - name: test dashboard.env file gen CockroachDB
         run: test -f dashboard.env
 
-      - name: test relay.env file gen CockroachDB
-        run: test -f relay.env
+  test-download-geolite2-script:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install jq
+        run: sudo apt-get update && sudo apt-get install -y unzip sqlite3
+
+      - name: Checkout code
+        uses: actions/checkout@v3
+
+      - name: test script
+        run: bash -x infrastructure_files/download-geolite2.sh
+
+      - name: test mmdb file exists
+        run: test -f GeoLite2-City.mmdb
+
+      - name: test geonames file exists
+        run: test -f geonames.db

.gitignore

@@ -29,3 +29,4 @@ infrastructure_files/setup.env
 infrastructure_files/setup-*.env
 .vscode
 .DS_Store
+GeoLite2-City*

.goreleaser.yaml

@@ -1,5 +1,3 @@
-version: 2
-
 project_name: netbird
 builds:
   - id: netbird
@@ -24,7 +22,7 @@ builds:
         goarch: 386
     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 }}"
+    mod_timestamp: '{{ .CommitTimestamp }}'
     tags:
       - load_wgnt_from_rsrc
 
@@ -44,19 +42,19 @@ builds:
       - softfloat
     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 }}"
+    mod_timestamp: '{{ .CommitTimestamp }}'
     tags:
       - load_wgnt_from_rsrc
 
   - id: netbird-mgmt
     dir: management
     env:
-      - CGO_ENABLED=1
-      - >-
-        {{- if eq .Runtime.Goos "linux" }}
-          {{- if eq .Arch "arm64"}}CC=aarch64-linux-gnu-gcc{{- end }}
-          {{- if eq .Arch "arm"}}CC=arm-linux-gnueabihf-gcc{{- end }}
-        {{- end }}
+    - CGO_ENABLED=1
+    - >-
+      {{- if eq .Runtime.Goos "linux" }}
+        {{- if eq .Arch "arm64"}}CC=aarch64-linux-gnu-gcc{{- end }}
+        {{- if eq .Arch "arm"}}CC=arm-linux-gnueabihf-gcc{{- end }}
+      {{- end }}
     binary: netbird-mgmt
     goos:
       - linux
@@ -66,7 +64,7 @@ builds:
       - arm
     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 }}"
+    mod_timestamp: '{{ .CommitTimestamp }}'
 
   - id: netbird-signal
     dir: signal
@@ -80,21 +78,7 @@ builds:
       - arm
     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 }}"
-
-  - id: netbird-relay
-    dir: relay
-    env: [CGO_ENABLED=0]
-    binary: netbird-relay
-    goos:
-      - linux
-    goarch:
-      - amd64
-      - arm64
-      - arm
-    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 }}"
+    mod_timestamp: '{{ .CommitTimestamp }}'
 
 archives:
   - builds:
@@ -102,6 +86,7 @@ archives:
       - netbird-static
 
 nfpms:
+
   - maintainer: Netbird <dev@netbird.io>
     description: Netbird client.
     homepage: https://netbird.io/
@@ -176,52 +161,6 @@ dockers:
       - "--label=org.opencontainers.image.revision={{.FullCommit}}"
       - "--label=org.opencontainers.image.version={{.Version}}"
       - "--label=maintainer=dev@netbird.io"
-  - image_templates:
-      - netbirdio/relay:{{ .Version }}-amd64
-    ids:
-      - netbird-relay
-    goarch: amd64
-    use: buildx
-    dockerfile: relay/Dockerfile
-    build_flag_templates:
-      - "--platform=linux/amd64"
-      - "--label=org.opencontainers.image.created={{.Date}}"
-      - "--label=org.opencontainers.image.title={{.ProjectName}}"
-      - "--label=org.opencontainers.image.version={{.Version}}"
-      - "--label=org.opencontainers.image.revision={{.FullCommit}}"
-      - "--label=org.opencontainers.image.version={{.Version}}"
-      - "--label=maintainer=dev@netbird.io"
-  - image_templates:
-      - netbirdio/relay:{{ .Version }}-arm64v8
-    ids:
-      - netbird-relay
-    goarch: arm64
-    use: buildx
-    dockerfile: relay/Dockerfile
-    build_flag_templates:
-      - "--platform=linux/arm64"
-      - "--label=org.opencontainers.image.created={{.Date}}"
-      - "--label=org.opencontainers.image.title={{.ProjectName}}"
-      - "--label=org.opencontainers.image.version={{.Version}}"
-      - "--label=org.opencontainers.image.revision={{.FullCommit}}"
-      - "--label=org.opencontainers.image.version={{.Version}}"
-      - "--label=maintainer=dev@netbird.io"
-  - image_templates:
-      - netbirdio/relay:{{ .Version }}-arm
-    ids:
-      - netbird-relay
-    goarch: arm
-    goarm: 6
-    use: buildx
-    dockerfile: relay/Dockerfile
-    build_flag_templates:
-      - "--platform=linux/arm"
-      - "--label=org.opencontainers.image.created={{.Date}}"
-      - "--label=org.opencontainers.image.title={{.ProjectName}}"
-      - "--label=org.opencontainers.image.version={{.Version}}"
-      - "--label=org.opencontainers.image.revision={{.FullCommit}}"
-      - "--label=org.opencontainers.image.version={{.Version}}"
-      - "--label=maintainer=dev@netbird.io"
   - image_templates:
       - netbirdio/signal:{{ .Version }}-amd64
     ids:
@@ -374,18 +313,6 @@ docker_manifests:
       - netbirdio/netbird:{{ .Version }}-arm
       - netbirdio/netbird:{{ .Version }}-amd64
 
-  - name_template: netbirdio/relay:{{ .Version }}
-    image_templates:
-      - netbirdio/relay:{{ .Version }}-arm64v8
-      - netbirdio/relay:{{ .Version }}-arm
-      - netbirdio/relay:{{ .Version }}-amd64
-
-  - name_template: netbirdio/relay:latest
-    image_templates:
-      - netbirdio/relay:{{ .Version }}-arm64v8
-      - netbirdio/relay:{{ .Version }}-arm
-      - netbirdio/relay:{{ .Version }}-amd64
-
   - name_template: netbirdio/signal:{{ .Version }}
     image_templates:
       - netbirdio/signal:{{ .Version }}-arm64v8
@@ -417,9 +344,10 @@ docker_manifests:
       - netbirdio/management:{{ .Version }}-debug-amd64
 
 brews:
-  - ids:
+  -
+    ids:
       - default
-    repository:
+    tap:
       owner: netbirdio
       name: homebrew-tap
       token: "{{ .Env.HOMEBREW_TAP_GITHUB_TOKEN }}"
@@ -436,7 +364,7 @@ brews:
 uploads:
   - name: debian
     ids:
-      - netbird-deb
+    - netbird-deb
     mode: archive
     target: https://pkgs.wiretrustee.com/debian/pool/{{ .ArtifactName }};deb.distribution=stable;deb.component=main;deb.architecture={{ if .Arm }}armhf{{ else }}{{ .Arch }}{{ end }};deb.package=
     username: dev@wiretrustee.com
@@ -458,4 +386,4 @@ checksum:
 release:
   extra_files:
     - glob: ./infrastructure_files/getting-started-with-zitadel.sh
-    - glob: ./release_files/install.sh
+    - glob: ./release_files/install.sh

.goreleaser_ui.yaml

@@ -1,5 +1,3 @@
-version: 2
-
 project_name: netbird-ui
 builds:
   - id: netbird-ui
@@ -13,7 +11,9 @@ builds:
       - 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:
+      - legacy_appindicator
+    mod_timestamp: '{{ .CommitTimestamp }}'
 
   - id: netbird-ui-windows
     dir: client/ui
@@ -28,7 +28,7 @@ builds:
     ldflags:
       - -s -w -X github.com/netbirdio/netbird/version.version={{.Version}} -X main.commit={{.Commit}} -X main.date={{.CommitDate}} -X main.builtBy=goreleaser
       - -H windowsgui
-    mod_timestamp: "{{ .CommitTimestamp }}"
+    mod_timestamp: '{{ .CommitTimestamp }}'
 
 archives:
   - id: linux-arch
@@ -41,6 +41,7 @@ archives:
       - netbird-ui-windows
 
 nfpms:
+
   - maintainer: Netbird <dev@netbird.io>
     description: Netbird client UI.
     homepage: https://netbird.io/
@@ -78,7 +79,7 @@ nfpms:
 uploads:
   - name: debian
     ids:
-      - netbird-ui-deb
+    - netbird-ui-deb
     mode: archive
     target: https://pkgs.wiretrustee.com/debian/pool/{{ .ArtifactName }};deb.distribution=stable;deb.component=main;deb.architecture={{ if .Arm }}armhf{{ else }}{{ .Arch }}{{ end }};deb.package=
     username: dev@wiretrustee.com

.goreleaser_ui_darwin.yaml

@@ -1,5 +1,3 @@
-version: 2
-
 project_name: netbird-ui
 builds:
   - id: netbird-ui-darwin
@@ -19,7 +17,7 @@ builds:
       - softfloat
     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 }}"
+    mod_timestamp: '{{ .CommitTimestamp }}'
     tags:
       - load_wgnt_from_rsrc
 
@@ -30,4 +28,4 @@ archives:
 checksum:
   name_template: "{{ .ProjectName }}_darwin_checksums.txt"
 changelog:
-  disable: true
+  skip: true

CONTRIBUTING.md

@@ -96,7 +96,7 @@ They can be executed from the repository root before every push or PR:
 
 **Goreleaser**
 ```shell
-goreleaser build --snapshot --clean
+goreleaser --snapshot --rm-dist
 ```
 **golangci-lint**
 ```shell

README.md

@@ -10,14 +10,12 @@
   <img width="234" src="docs/media/logo-full.png"/>
 </p>
   <p>
-   <a href="https://img.shields.io/badge/license-BSD--3-blue)">
-       <img src="https://sonarcloud.io/api/project_badges/measure?project=netbirdio_netbird&metric=alert_status" />
-     </a> 
      <a href="https://github.com/netbirdio/netbird/blob/main/LICENSE">
        <img src="https://img.shields.io/badge/license-BSD--3-blue" />
      </a> 
+   <a href="https://www.codacy.com/gh/netbirdio/netbird/dashboard?utm_source=github.com&amp;utm_medium=referral&amp;utm_content=netbirdio/netbird&amp;utm_campaign=Badge_Grade"><img src="https://app.codacy.com/project/badge/Grade/e3013d046aec44cdb7462c8673b00976"/></a>
     <br>
-    <a href="https://join.slack.com/t/netbirdio/shared_invite/zt-2p5zwhm4g-8fHollzrQa5y4PZF5AEpvQ">
+    <a href="https://join.slack.com/t/netbirdio/shared_invite/zt-vrahf41g-ik1v7fV8du6t0RwxSrJ96A">
         <img src="https://img.shields.io/badge/slack-@netbird-red.svg?logo=slack"/>
      </a>    
   </p>
@@ -30,7 +28,7 @@
   <br/>
   See <a href="https://netbird.io/docs/">Documentation</a>
   <br/>
-   Join our <a href="https://join.slack.com/t/netbirdio/shared_invite/zt-2p5zwhm4g-8fHollzrQa5y4PZF5AEpvQ">Slack channel</a>
+   Join our <a href="https://join.slack.com/t/netbirdio/shared_invite/zt-vrahf41g-ik1v7fV8du6t0RwxSrJ96A">Slack channel</a>
   <br/>
  
 </strong>

client/Dockerfile

@@ -1,4 +1,4 @@
-FROM alpine:3.20
+FROM alpine:3.19
 RUN apk add --no-cache ca-certificates iptables ip6tables
 ENV NB_FOREGROUND_MODE=true
 ENTRYPOINT [ "/usr/local/bin/netbird","up"]

client/android/client.go

@@ -8,7 +8,6 @@ import (
 
 	log "github.com/sirupsen/logrus"
 
-	"github.com/netbirdio/netbird/client/iface/device"
 	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/client/internal/dns"
 	"github.com/netbirdio/netbird/client/internal/listener"
@@ -16,6 +15,7 @@ import (
 	"github.com/netbirdio/netbird/client/internal/stdnet"
 	"github.com/netbirdio/netbird/client/system"
 	"github.com/netbirdio/netbird/formatter"
+	"github.com/netbirdio/netbird/iface"
 	"github.com/netbirdio/netbird/util/net"
 )
 
@@ -26,7 +26,7 @@ type ConnectionListener interface {
 
 // TunAdapter export internal TunAdapter for mobile
 type TunAdapter interface {
-	device.TunAdapter
+	iface.TunAdapter
 }
 
 // IFaceDiscover export internal IFaceDiscover for mobile
@@ -51,7 +51,7 @@ func init() {
 // Client struct manage the life circle of background service
 type Client struct {
 	cfgFile               string
-	tunAdapter            device.TunAdapter
+	tunAdapter            iface.TunAdapter
 	iFaceDiscover         IFaceDiscover
 	recorder              *peer.Status
 	ctxCancel             context.CancelFunc

client/android/login.go

@@ -84,7 +84,7 @@ func (a *Auth) SaveConfigIfSSOSupported(listener SSOListener) {
 func (a *Auth) saveConfigIfSSOSupported() (bool, error) {
 	supportsSSO := true
 	err := a.withBackOff(a.ctx, func() (err error) {
-		_, err = internal.GetPKCEAuthorizationFlowInfo(a.ctx, a.config.PrivateKey, a.config.ManagementURL, nil)
+		_, err = internal.GetPKCEAuthorizationFlowInfo(a.ctx, a.config.PrivateKey, a.config.ManagementURL)
 		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.NotFound || s.Code() == codes.Unimplemented) {
 			_, err = internal.GetDeviceAuthorizationFlowInfo(a.ctx, a.config.PrivateKey, a.config.ManagementURL)
 			s, ok := gstatus.FromError(err)

client/anonymize/anonymize.go

@@ -178,21 +178,6 @@ func (a *Anonymizer) AnonymizeDNSLogLine(logEntry string) string {
 	})
 }
 
-// AnonymizeRoute anonymizes a route string by replacing IP addresses with anonymized versions and
-// domain names with random strings.
-func (a *Anonymizer) AnonymizeRoute(route string) string {
-	prefix, err := netip.ParsePrefix(route)
-	if err == nil {
-		ip := a.AnonymizeIPString(prefix.Addr().String())
-		return fmt.Sprintf("%s/%d", ip, prefix.Bits())
-	}
-	domains := strings.Split(route, ", ")
-	for i, domain := range domains {
-		domains[i] = a.AnonymizeDomain(domain)
-	}
-	return strings.Join(domains, ", ")
-}
-
 func isWellKnown(addr netip.Addr) bool {
 	wellKnown := []string{
 		"8.8.8.8", "8.8.4.4", // Google DNS IPv4

client/cmd/debug.go

@@ -5,7 +5,6 @@ import (
 	"fmt"
 	"time"
 
-	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"google.golang.org/grpc/status"
 
@@ -14,8 +13,6 @@ import (
 	"github.com/netbirdio/netbird/client/server"
 )
 
-const errCloseConnection = "Failed to close connection: %v"
-
 var debugCmd = &cobra.Command{
 	Use:   "debug",
 	Short: "Debugging commands",
@@ -66,17 +63,12 @@ func debugBundle(cmd *cobra.Command, _ []string) error {
 	if err != nil {
 		return err
 	}
-	defer func() {
-		if err := conn.Close(); err != nil {
-			log.Errorf(errCloseConnection, err)
-		}
-	}()
+	defer conn.Close()
 
 	client := proto.NewDaemonServiceClient(conn)
 	resp, err := client.DebugBundle(cmd.Context(), &proto.DebugBundleRequest{
-		Anonymize:  anonymizeFlag,
-		Status:     getStatusOutput(cmd),
-		SystemInfo: debugSystemInfoFlag,
+		Anonymize: anonymizeFlag,
+		Status:    getStatusOutput(cmd),
 	})
 	if err != nil {
 		return fmt.Errorf("failed to bundle debug: %v", status.Convert(err).Message())
@@ -92,11 +84,7 @@ func setLogLevel(cmd *cobra.Command, args []string) error {
 	if err != nil {
 		return err
 	}
-	defer func() {
-		if err := conn.Close(); err != nil {
-			log.Errorf(errCloseConnection, err)
-		}
-	}()
+	defer conn.Close()
 
 	client := proto.NewDaemonServiceClient(conn)
 	level := server.ParseLogLevel(args[0])
@@ -125,11 +113,7 @@ func runForDuration(cmd *cobra.Command, args []string) error {
 	if err != nil {
 		return err
 	}
-	defer func() {
-		if err := conn.Close(); err != nil {
-			log.Errorf(errCloseConnection, err)
-		}
-	}()
+	defer conn.Close()
 
 	client := proto.NewDaemonServiceClient(conn)
 
@@ -138,20 +122,17 @@ func runForDuration(cmd *cobra.Command, args []string) error {
 		return fmt.Errorf("failed to get status: %v", status.Convert(err).Message())
 	}
 
-	stateWasDown := stat.Status != string(internal.StatusConnected) && stat.Status != string(internal.StatusConnecting)
+	restoreUp := stat.Status == string(internal.StatusConnected) || stat.Status == string(internal.StatusConnecting)
 
 	initialLogLevel, err := client.GetLogLevel(cmd.Context(), &proto.GetLogLevelRequest{})
 	if err != nil {
 		return fmt.Errorf("failed to get log level: %v", status.Convert(err).Message())
 	}
 
-	if stateWasDown {
-		if _, err := client.Up(cmd.Context(), &proto.UpRequest{}); err != nil {
-			return fmt.Errorf("failed to up: %v", status.Convert(err).Message())
-		}
-		cmd.Println("Netbird up")
-		time.Sleep(time.Second * 10)
+	if _, err := client.Down(cmd.Context(), &proto.DownRequest{}); err != nil {
+		return fmt.Errorf("failed to down: %v", status.Convert(err).Message())
 	}
+	cmd.Println("Netbird down")
 
 	initialLevelTrace := initialLogLevel.GetLevel() >= proto.LogLevel_TRACE
 	if !initialLevelTrace {
@@ -164,11 +145,6 @@ func runForDuration(cmd *cobra.Command, args []string) error {
 		cmd.Println("Log level set to trace.")
 	}
 
-	if _, err := client.Down(cmd.Context(), &proto.DownRequest{}); err != nil {
-		return fmt.Errorf("failed to down: %v", status.Convert(err).Message())
-	}
-	cmd.Println("Netbird down")
-
 	time.Sleep(1 * time.Second)
 
 	if _, err := client.Up(cmd.Context(), &proto.UpRequest{}); err != nil {
@@ -186,25 +162,21 @@ func runForDuration(cmd *cobra.Command, args []string) error {
 	}
 	cmd.Println("\nDuration completed")
 
-	cmd.Println("Creating debug bundle...")
-
 	headerPreDown := fmt.Sprintf("----- Netbird pre-down - Timestamp: %s - Duration: %s", time.Now().Format(time.RFC3339), duration)
 	statusOutput = fmt.Sprintf("%s\n%s\n%s", statusOutput, headerPreDown, getStatusOutput(cmd))
 
-	resp, err := client.DebugBundle(cmd.Context(), &proto.DebugBundleRequest{
-		Anonymize:  anonymizeFlag,
-		Status:     statusOutput,
-		SystemInfo: debugSystemInfoFlag,
-	})
-	if err != nil {
-		return fmt.Errorf("failed to bundle debug: %v", status.Convert(err).Message())
+	if _, err := client.Down(cmd.Context(), &proto.DownRequest{}); err != nil {
+		return fmt.Errorf("failed to down: %v", status.Convert(err).Message())
 	}
+	cmd.Println("Netbird down")
 
-	if stateWasDown {
-		if _, err := client.Down(cmd.Context(), &proto.DownRequest{}); err != nil {
-			return fmt.Errorf("failed to down: %v", status.Convert(err).Message())
+	time.Sleep(1 * time.Second)
+
+	if restoreUp {
+		if _, err := client.Up(cmd.Context(), &proto.UpRequest{}); err != nil {
+			return fmt.Errorf("failed to up: %v", status.Convert(err).Message())
 		}
-		cmd.Println("Netbird down")
+		cmd.Println("Netbird up")
 	}
 
 	if !initialLevelTrace {
@@ -214,6 +186,16 @@ func runForDuration(cmd *cobra.Command, args []string) error {
 		cmd.Println("Log level restored to", initialLogLevel.GetLevel())
 	}
 
+	cmd.Println("Creating debug bundle...")
+
+	resp, err := client.DebugBundle(cmd.Context(), &proto.DebugBundleRequest{
+		Anonymize: anonymizeFlag,
+		Status:    statusOutput,
+	})
+	if err != nil {
+		return fmt.Errorf("failed to bundle debug: %v", status.Convert(err).Message())
+	}
+
 	cmd.Println(resp.GetPath())
 
 	return nil

client/cmd/down.go

@@ -26,7 +26,7 @@ var downCmd = &cobra.Command{
 			return err
 		}
 
-		ctx, cancel := context.WithTimeout(context.Background(), time.Second*7)
+		ctx, cancel := context.WithTimeout(context.Background(), time.Second*3)
 		defer cancel()
 
 		conn, err := DialClientGRPCServer(ctx, daemonAddr)
@@ -42,8 +42,6 @@ var downCmd = &cobra.Command{
 			log.Errorf("call service down method: %v", err)
 			return err
 		}
-
-		cmd.Println("Disconnected")
 		return nil
 	},
 }

client/cmd/login.go

@@ -39,11 +39,6 @@ var loginCmd = &cobra.Command{
 			ctx = context.WithValue(ctx, system.DeviceNameCtxKey, hostName)
 		}
 
-		providedSetupKey, err := getSetupKey()
-		if err != nil {
-			return err
-		}
-
 		// workaround to run without service
 		if logFile == "console" {
 			err = handleRebrand(cmd)
@@ -67,7 +62,7 @@ var loginCmd = &cobra.Command{
 
 			config, _ = internal.UpdateOldManagementURL(ctx, config, configPath)
 
-			err = foregroundLogin(ctx, cmd, config, providedSetupKey)
+			err = foregroundLogin(ctx, cmd, config, setupKey)
 			if err != nil {
 				return fmt.Errorf("foreground login failed: %v", err)
 			}
@@ -86,7 +81,7 @@ var loginCmd = &cobra.Command{
 		client := proto.NewDaemonServiceClient(conn)
 
 		loginRequest := proto.LoginRequest{
-			SetupKey:             providedSetupKey,
+			SetupKey:             setupKey,
 			ManagementUrl:        managementURL,
 			IsLinuxDesktopClient: isLinuxRunningDesktop(),
 			Hostname:             hostName,

client/cmd/login_test.go

@@ -5,8 +5,8 @@ import (
 	"strings"
 	"testing"
 
-	"github.com/netbirdio/netbird/client/iface"
 	"github.com/netbirdio/netbird/client/internal"
+	"github.com/netbirdio/netbird/iface"
 	"github.com/netbirdio/netbird/util"
 )
 

client/cmd/root.go

@@ -37,7 +37,6 @@ const (
 	serverSSHAllowedFlag    = "allow-server-ssh"
 	extraIFaceBlackListFlag = "extra-iface-blacklist"
 	dnsRouteIntervalFlag    = "dns-router-interval"
-	systemInfoFlag          = "system-info"
 )
 
 var (
@@ -56,7 +55,6 @@ var (
 	managementURL           string
 	adminURL                string
 	setupKey                string
-	setupKeyPath            string
 	hostName                string
 	preSharedKey            string
 	natExternalIPs          []string
@@ -71,7 +69,6 @@ var (
 	autoConnectDisabled     bool
 	extraIFaceBlackList     []string
 	anonymizeFlag           bool
-	debugSystemInfoFlag     bool
 	dnsRouteInterval        time.Duration
 
 	rootCmd = &cobra.Command{
@@ -94,15 +91,12 @@ func init() {
 	oldDefaultConfigPathDir = "/etc/wiretrustee/"
 	oldDefaultLogFileDir = "/var/log/wiretrustee/"
 
-	switch runtime.GOOS {
-	case "windows":
+	if runtime.GOOS == "windows" {
 		defaultConfigPathDir = os.Getenv("PROGRAMDATA") + "\\Netbird\\"
 		defaultLogFileDir = os.Getenv("PROGRAMDATA") + "\\Netbird\\"
 
 		oldDefaultConfigPathDir = os.Getenv("PROGRAMDATA") + "\\Wiretrustee\\"
 		oldDefaultLogFileDir = os.Getenv("PROGRAMDATA") + "\\Wiretrustee\\"
-	case "freebsd":
-		defaultConfigPathDir = "/var/db/netbird/"
 	}
 
 	defaultConfigPath = defaultConfigPathDir + "config.json"
@@ -127,10 +121,8 @@ func init() {
 	rootCmd.PersistentFlags().StringVarP(&serviceName, "service", "s", defaultServiceName, "Netbird system service name")
 	rootCmd.PersistentFlags().StringVarP(&configPath, "config", "c", defaultConfigPath, "Netbird config file location")
 	rootCmd.PersistentFlags().StringVarP(&logLevel, "log-level", "l", "info", "sets Netbird log level")
-	rootCmd.PersistentFlags().StringVar(&logFile, "log-file", defaultLogFile, "sets Netbird log path. If console is specified the log will be output to stdout. If syslog is specified the log will be sent to syslog daemon.")
+	rootCmd.PersistentFlags().StringVar(&logFile, "log-file", defaultLogFile, "sets Netbird log path. If console is specified the log will be output to stdout")
 	rootCmd.PersistentFlags().StringVarP(&setupKey, "setup-key", "k", "", "Setup key obtained from the Management Service Dashboard (used to register peer)")
-	rootCmd.PersistentFlags().StringVar(&setupKeyPath, "setup-key-file", "", "The path to a setup key obtained from the Management Service Dashboard (used to register peer) This is ignored if the setup-key flag is provided.")
-	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 IP addresses and non-netbird.io domains in logs and status output")
@@ -173,8 +165,6 @@ func init() {
 	upCmd.PersistentFlags().BoolVar(&rosenpassPermissive, rosenpassPermissiveFlag, false, "[Experimental] Enable Rosenpass in permissive mode to allow this peer to accept WireGuard connections without requiring Rosenpass functionality from peers that do not have Rosenpass enabled.")
 	upCmd.PersistentFlags().BoolVar(&serverSSHAllowed, serverSSHAllowedFlag, false, "Allow SSH server on peer. If enabled, the SSH server will be permitted")
 	upCmd.PersistentFlags().BoolVar(&autoConnectDisabled, disableAutoConnectFlag, false, "Disables auto-connect feature. If enabled, then the client won't connect automatically when the service starts.")
-
-	debugCmd.PersistentFlags().BoolVarP(&debugSystemInfoFlag, systemInfoFlag, "S", false, "Adds system information to the debug bundle")
 }
 
 // SetupCloseHandler handles SIGTERM signal and exits with success
@@ -256,21 +246,6 @@ var CLIBackOffSettings = &backoff.ExponentialBackOff{
 	Clock:               backoff.SystemClock,
 }
 
-func getSetupKey() (string, error) {
-	if setupKeyPath != "" && setupKey == "" {
-		return getSetupKeyFromFile(setupKeyPath)
-	}
-	return setupKey, nil
-}
-
-func getSetupKeyFromFile(setupKeyPath string) (string, error) {
-	data, err := os.ReadFile(setupKeyPath)
-	if err != nil {
-		return "", fmt.Errorf("failed to read setup key file: %v", err)
-	}
-	return strings.TrimSpace(string(data)), nil
-}
-
 func handleRebrand(cmd *cobra.Command) error {
 	var err error
 	if logFile == defaultLogFile {

client/cmd/root_test.go

@@ -4,10 +4,6 @@ import (
 	"fmt"
 	"io"
 	"testing"
-
-	"github.com/spf13/cobra"
-
-	"github.com/netbirdio/netbird/client/iface"
 )
 
 func TestInitCommands(t *testing.T) {
@@ -38,44 +34,3 @@ func TestInitCommands(t *testing.T) {
 		})
 	}
 }
-
-func TestSetFlagsFromEnvVars(t *testing.T) {
-	var cmd = &cobra.Command{
-		Use:          "netbird",
-		Long:         "test",
-		SilenceUsage: true,
-		Run: func(cmd *cobra.Command, args []string) {
-			SetFlagsFromEnvVars(cmd)
-		},
-	}
-
-	cmd.PersistentFlags().StringSliceVar(&natExternalIPs, externalIPMapFlag, nil,
-		`comma separated list of external IPs to map to the Wireguard interface`)
-	cmd.PersistentFlags().StringVar(&interfaceName, interfaceNameFlag, iface.WgInterfaceDefault, "Wireguard interface name")
-	cmd.PersistentFlags().BoolVar(&rosenpassEnabled, enableRosenpassFlag, false, "Enable Rosenpass feature Rosenpass.")
-	cmd.PersistentFlags().Uint16Var(&wireguardPort, wireguardPortFlag, iface.DefaultWgPort, "Wireguard interface listening port")
-
-	t.Setenv("NB_EXTERNAL_IP_MAP", "abc,dec")
-	t.Setenv("NB_INTERFACE_NAME", "test-name")
-	t.Setenv("NB_ENABLE_ROSENPASS", "true")
-	t.Setenv("NB_WIREGUARD_PORT", "10000")
-	err := cmd.Execute()
-	if err != nil {
-		t.Fatalf("expected no error while running netbird command, got %v", err)
-	}
-	if len(natExternalIPs) != 2 {
-		t.Errorf("expected 2 external ips, got %d", len(natExternalIPs))
-	}
-	if natExternalIPs[0] != "abc" || natExternalIPs[1] != "dec" {
-		t.Errorf("expected abc,dec, got %s,%s", natExternalIPs[0], natExternalIPs[1])
-	}
-	if interfaceName != "test-name" {
-		t.Errorf("expected test-name, got %s", interfaceName)
-	}
-	if !rosenpassEnabled {
-		t.Errorf("expected rosenpassEnabled to be true, got false")
-	}
-	if wireguardPort != 10000 {
-		t.Errorf("expected wireguardPort to be 10000, got %d", wireguardPort)
-	}
-}

client/cmd/service.go

@@ -2,21 +2,18 @@ package cmd
 
 import (
 	"context"
-
 	"github.com/kardianos/service"
 	log "github.com/sirupsen/logrus"
 	"github.com/spf13/cobra"
 	"google.golang.org/grpc"
 
 	"github.com/netbirdio/netbird/client/internal"
-	"github.com/netbirdio/netbird/client/server"
 )
 
 type program struct {
-	ctx            context.Context
-	cancel         context.CancelFunc
-	serv           *grpc.Server
-	serverInstance *server.Server
+	ctx    context.Context
+	cancel context.CancelFunc
+	serv   *grpc.Server
 }
 
 func newProgram(ctx context.Context, cancel context.CancelFunc) *program {

client/cmd/service_controller.go

@@ -61,8 +61,6 @@ func (p *program) Start(svc service.Service) error {
 		}
 		proto.RegisterDaemonServiceServer(p.serv, serverInstance)
 
-		p.serverInstance = serverInstance
-
 		log.Printf("started daemon server: %v", split[1])
 		if err := p.serv.Serve(listen); err != nil {
 			log.Errorf("failed to serve daemon requests: %v", err)
@@ -72,14 +70,6 @@ func (p *program) Start(svc service.Service) error {
 }
 
 func (p *program) Stop(srv service.Service) error {
-	if p.serverInstance != nil {
-		in := new(proto.DownRequest)
-		_, err := p.serverInstance.Down(p.ctx, in)
-		if err != nil {
-			log.Errorf("failed to stop daemon: %v", err)
-		}
-	}
-
 	p.cancel()
 
 	if p.serv != nil {

client/cmd/service_installer.go

@@ -31,8 +31,6 @@ var installCmd = &cobra.Command{
 			configPath,
 			"--log-level",
 			logLevel,
-			"--daemon-addr",
-			daemonAddr,
 		}
 
 		if managementURL != "" {

client/cmd/status.go

@@ -31,9 +31,9 @@ type peerStateDetailOutput struct {
 	Status                 string           `json:"status" yaml:"status"`
 	LastStatusUpdate       time.Time        `json:"lastStatusUpdate" yaml:"lastStatusUpdate"`
 	ConnType               string           `json:"connectionType" yaml:"connectionType"`
+	Direct                 bool             `json:"direct" yaml:"direct"`
 	IceCandidateType       iceCandidateType `json:"iceCandidateType" yaml:"iceCandidateType"`
 	IceCandidateEndpoint   iceCandidateType `json:"iceCandidateEndpoint" yaml:"iceCandidateEndpoint"`
-	RelayAddress           string           `json:"relayAddress" yaml:"relayAddress"`
 	LastWireguardHandshake time.Time        `json:"lastWireguardHandshake" yaml:"lastWireguardHandshake"`
 	TransferReceived       int64            `json:"transferReceived" yaml:"transferReceived"`
 	TransferSent           int64            `json:"transferSent" yaml:"transferSent"`
@@ -335,18 +335,16 @@ func mapNSGroups(servers []*proto.NSGroupState) []nsServerGroupStateOutput {
 
 func mapPeers(peers []*proto.PeerState) peersStateOutput {
 	var peersStateDetail []peerStateDetailOutput
+	localICE := ""
+	remoteICE := ""
+	localICEEndpoint := ""
+	remoteICEEndpoint := ""
+	connType := ""
 	peersConnected := 0
+	lastHandshake := time.Time{}
+	transferReceived := int64(0)
+	transferSent := int64(0)
 	for _, pbPeerState := range peers {
-		localICE := ""
-		remoteICE := ""
-		localICEEndpoint := ""
-		remoteICEEndpoint := ""
-		relayServerAddress := ""
-		connType := ""
-		lastHandshake := time.Time{}
-		transferReceived := int64(0)
-		transferSent := int64(0)
-
 		isPeerConnected := pbPeerState.ConnStatus == peer.StatusConnected.String()
 		if skipDetailByFilters(pbPeerState, isPeerConnected) {
 			continue
@@ -362,7 +360,6 @@ func mapPeers(peers []*proto.PeerState) peersStateOutput {
 			if pbPeerState.Relayed {
 				connType = "Relayed"
 			}
-			relayServerAddress = pbPeerState.GetRelayAddress()
 			lastHandshake = pbPeerState.GetLastWireguardHandshake().AsTime().Local()
 			transferReceived = pbPeerState.GetBytesRx()
 			transferSent = pbPeerState.GetBytesTx()
@@ -375,6 +372,7 @@ func mapPeers(peers []*proto.PeerState) peersStateOutput {
 			Status:           pbPeerState.GetConnStatus(),
 			LastStatusUpdate: timeLocal,
 			ConnType:         connType,
+			Direct:           pbPeerState.GetDirect(),
 			IceCandidateType: iceCandidateType{
 				Local:  localICE,
 				Remote: remoteICE,
@@ -383,7 +381,6 @@ func mapPeers(peers []*proto.PeerState) peersStateOutput {
 				Local:  localICEEndpoint,
 				Remote: remoteICEEndpoint,
 			},
-			RelayAddress:           relayServerAddress,
 			FQDN:                   pbPeerState.GetFqdn(),
 			LastWireguardHandshake: lastHandshake,
 			TransferReceived:       transferReceived,
@@ -644,9 +641,9 @@ func parsePeers(peers peersStateOutput, rosenpassEnabled, rosenpassPermissive bo
 				"  Status: %s\n"+
 				"  -- detail --\n"+
 				"  Connection type: %s\n"+
+				"  Direct: %t\n"+
 				"  ICE candidate (Local/Remote): %s/%s\n"+
 				"  ICE candidate endpoints (Local/Remote): %s/%s\n"+
-				"  Relay server address: %s\n"+
 				"  Last connection update: %s\n"+
 				"  Last WireGuard handshake: %s\n"+
 				"  Transfer status (received/sent) %s/%s\n"+
@@ -658,11 +655,11 @@ func parsePeers(peers peersStateOutput, rosenpassEnabled, rosenpassPermissive bo
 			peerState.PubKey,
 			peerState.Status,
 			peerState.ConnType,
+			peerState.Direct,
 			localICE,
 			remoteICE,
 			localICEEndpoint,
 			remoteICEEndpoint,
-			peerState.RelayAddress,
 			timeAgo(peerState.LastStatusUpdate),
 			timeAgo(peerState.LastWireguardHandshake),
 			toIEC(peerState.TransferReceived),
@@ -805,15 +802,12 @@ func anonymizePeerDetail(a *anonymize.Anonymizer, peer *peerStateDetailOutput) {
 	if remoteIP, port, err := net.SplitHostPort(peer.IceCandidateEndpoint.Remote); err == nil {
 		peer.IceCandidateEndpoint.Remote = fmt.Sprintf("%s:%s", a.AnonymizeIPString(remoteIP), port)
 	}
-
-	peer.RelayAddress = a.AnonymizeURI(peer.RelayAddress)
-
 	for i, route := range peer.Routes {
 		peer.Routes[i] = a.AnonymizeIPString(route)
 	}
 
 	for i, route := range peer.Routes {
-		peer.Routes[i] = a.AnonymizeRoute(route)
+		peer.Routes[i] = anonymizeRoute(a, route)
 	}
 }
 
@@ -849,8 +843,21 @@ func anonymizeOverview(a *anonymize.Anonymizer, overview *statusOutputOverview)
 	}
 
 	for i, route := range overview.Routes {
-		overview.Routes[i] = a.AnonymizeRoute(route)
+		overview.Routes[i] = anonymizeRoute(a, route)
 	}
 
 	overview.FQDN = a.AnonymizeDomain(overview.FQDN)
 }
+
+func anonymizeRoute(a *anonymize.Anonymizer, route string) string {
+	prefix, err := netip.ParsePrefix(route)
+	if err == nil {
+		ip := a.AnonymizeIPString(prefix.Addr().String())
+		return fmt.Sprintf("%s/%d", ip, prefix.Bits())
+	}
+	domains := strings.Split(route, ", ")
+	for i, domain := range domains {
+		domains[i] = a.AnonymizeDomain(domain)
+	}
+	return strings.Join(domains, ", ")
+}

client/cmd/status_test.go

@@ -37,6 +37,7 @@ var resp = &proto.StatusResponse{
 				ConnStatus:                 "Connected",
 				ConnStatusUpdate:           timestamppb.New(time.Date(2001, time.Month(1), 1, 1, 1, 1, 0, time.UTC)),
 				Relayed:                    false,
+				Direct:                     true,
 				LocalIceCandidateType:      "",
 				RemoteIceCandidateType:     "",
 				LocalIceCandidateEndpoint:  "",
@@ -56,6 +57,7 @@ var resp = &proto.StatusResponse{
 				ConnStatus:                 "Connected",
 				ConnStatusUpdate:           timestamppb.New(time.Date(2002, time.Month(2), 2, 2, 2, 2, 0, time.UTC)),
 				Relayed:                    true,
+				Direct:                     false,
 				LocalIceCandidateType:      "relay",
 				RemoteIceCandidateType:     "prflx",
 				LocalIceCandidateEndpoint:  "10.0.0.1:10001",
@@ -135,6 +137,7 @@ var overview = statusOutputOverview{
 				Status:           "Connected",
 				LastStatusUpdate: time.Date(2001, 1, 1, 1, 1, 1, 0, time.UTC),
 				ConnType:         "P2P",
+				Direct:           true,
 				IceCandidateType: iceCandidateType{
 					Local:  "",
 					Remote: "",
@@ -158,6 +161,7 @@ var overview = statusOutputOverview{
 				Status:           "Connected",
 				LastStatusUpdate: time.Date(2002, 2, 2, 2, 2, 2, 0, time.UTC),
 				ConnType:         "Relayed",
+				Direct:           false,
 				IceCandidateType: iceCandidateType{
 					Local:  "relay",
 					Remote: "prflx",
@@ -279,6 +283,7 @@ func TestParsingToJSON(t *testing.T) {
                 "status": "Connected",
                 "lastStatusUpdate": "2001-01-01T01:01:01Z",
                 "connectionType": "P2P",
+                "direct": true,
                 "iceCandidateType": {
                   "local": "",
                   "remote": ""
@@ -287,7 +292,6 @@ func TestParsingToJSON(t *testing.T) {
                   "local": "",
                   "remote": ""
                 },
-				"relayAddress": "",
                 "lastWireguardHandshake": "2001-01-01T01:01:02Z",
                 "transferReceived": 200,
                 "transferSent": 100,
@@ -304,6 +308,7 @@ func TestParsingToJSON(t *testing.T) {
                 "status": "Connected",
                 "lastStatusUpdate": "2002-02-02T02:02:02Z",
                 "connectionType": "Relayed",
+                "direct": false,
                 "iceCandidateType": {
                   "local": "relay",
                   "remote": "prflx"
@@ -312,7 +317,6 @@ func TestParsingToJSON(t *testing.T) {
                   "local": "10.0.0.1:10001",
                   "remote": "10.0.10.1:10002"
                 },
-				"relayAddress": "",
                 "lastWireguardHandshake": "2002-02-02T02:02:03Z",
                 "transferReceived": 2000,
                 "transferSent": 1000,
@@ -404,13 +408,13 @@ func TestParsingToYAML(t *testing.T) {
           status: Connected
           lastStatusUpdate: 2001-01-01T01:01:01Z
           connectionType: P2P
+          direct: true
           iceCandidateType:
             local: ""
             remote: ""
           iceCandidateEndpoint:
             local: ""
             remote: ""
-          relayAddress: ""
           lastWireguardHandshake: 2001-01-01T01:01:02Z
           transferReceived: 200
           transferSent: 100
@@ -424,13 +428,13 @@ func TestParsingToYAML(t *testing.T) {
           status: Connected
           lastStatusUpdate: 2002-02-02T02:02:02Z
           connectionType: Relayed
+          direct: false
           iceCandidateType:
             local: relay
             remote: prflx
           iceCandidateEndpoint:
             local: 10.0.0.1:10001
             remote: 10.0.10.1:10002
-          relayAddress: ""
           lastWireguardHandshake: 2002-02-02T02:02:03Z
           transferReceived: 2000
           transferSent: 1000
@@ -501,9 +505,9 @@ func TestParsingToDetail(t *testing.T) {
   Status: Connected
   -- detail --
   Connection type: P2P
+  Direct: true
   ICE candidate (Local/Remote): -/-
   ICE candidate endpoints (Local/Remote): -/-
-  Relay server address: 
   Last connection update: %s
   Last WireGuard handshake: %s
   Transfer status (received/sent) 200 B/100 B
@@ -517,9 +521,9 @@ func TestParsingToDetail(t *testing.T) {
   Status: Connected
   -- detail --
   Connection type: Relayed
+  Direct: false
   ICE candidate (Local/Remote): relay/prflx
   ICE candidate endpoints (Local/Remote): 10.0.0.1:10001/10.0.10.1:10002
-  Relay server address: 
   Last connection update: %s
   Last WireGuard handshake: %s
   Transfer status (received/sent) 2.0 KiB/1000 B

client/cmd/testutil_test.go

@@ -3,6 +3,7 @@ package cmd
 import (
 	"context"
 	"net"
+	"path/filepath"
 	"testing"
 	"time"
 
@@ -10,7 +11,6 @@ import (
 	"go.opentelemetry.io/otel"
 
 	"github.com/netbirdio/netbird/management/server/activity"
-	"github.com/netbirdio/netbird/management/server/telemetry"
 
 	"github.com/netbirdio/netbird/util"
 
@@ -33,12 +33,18 @@ func startTestingServices(t *testing.T) string {
 	if err != nil {
 		t.Fatal(err)
 	}
+	testDir := t.TempDir()
+	config.Datadir = testDir
+	err = util.CopyFileContents("../testdata/store.json", filepath.Join(testDir, "store.json"))
+	if err != nil {
+		t.Fatal(err)
+	}
 
 	_, signalLis := startSignal(t)
 	signalAddr := signalLis.Addr().String()
 	config.Signal.URI = signalAddr
 
-	_, mgmLis := startManagement(t, config, "../testdata/store.sqlite")
+	_, mgmLis := startManagement(t, config)
 	mgmAddr := mgmLis.Addr().String()
 	return mgmAddr
 }
@@ -50,7 +56,7 @@ func startSignal(t *testing.T) (*grpc.Server, net.Listener) {
 		t.Fatal(err)
 	}
 	s := grpc.NewServer()
-	srv, err := sig.NewServer(context.Background(), otel.Meter(""))
+	srv, err := sig.NewServer(otel.Meter(""))
 	require.NoError(t, err)
 
 	sigProto.RegisterSignalExchangeServer(s, srv)
@@ -63,15 +69,14 @@ func startSignal(t *testing.T) (*grpc.Server, net.Listener) {
 	return s, lis
 }
 
-func startManagement(t *testing.T, config *mgmt.Config, testFile string) (*grpc.Server, net.Listener) {
+func startManagement(t *testing.T, config *mgmt.Config) (*grpc.Server, net.Listener) {
 	t.Helper()
-
 	lis, err := net.Listen("tcp", ":0")
 	if err != nil {
 		t.Fatal(err)
 	}
 	s := grpc.NewServer()
-	store, cleanUp, err := mgmt.NewTestStoreFromSqlite(context.Background(), testFile, t.TempDir())
+	store, cleanUp, err := mgmt.NewTestStoreFromJson(context.Background(), config.Datadir)
 	if err != nil {
 		t.Fatal(err)
 	}
@@ -83,17 +88,12 @@ func startManagement(t *testing.T, config *mgmt.Config, testFile string) (*grpc.
 		return nil, nil
 	}
 	iv, _ := integrations.NewIntegratedValidator(context.Background(), eventStore)
-
-	metrics, err := telemetry.NewDefaultAppMetrics(context.Background())
-	require.NoError(t, err)
-
-	accountManager, err := mgmt.BuildManager(context.Background(), store, peersUpdateManager, nil, "", "netbird.selfhosted", eventStore, nil, false, iv, metrics)
+	accountManager, err := mgmt.BuildManager(context.Background(), store, peersUpdateManager, nil, "", "netbird.selfhosted", eventStore, nil, false, iv)
 	if err != nil {
 		t.Fatal(err)
 	}
-
-	secretsManager := mgmt.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay)
-	mgmtServer, err := mgmt.NewServer(context.Background(), config, accountManager, peersUpdateManager, secretsManager, nil, nil)
+	turnManager := mgmt.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
+	mgmtServer, err := mgmt.NewServer(context.Background(), config, accountManager, peersUpdateManager, turnManager, nil, nil)
 	if err != nil {
 		t.Fatal(err)
 	}

client/cmd/up.go

@@ -15,11 +15,11 @@ import (
 	gstatus "google.golang.org/grpc/status"
 	"google.golang.org/protobuf/types/known/durationpb"
 
-	"github.com/netbirdio/netbird/client/iface"
 	"github.com/netbirdio/netbird/client/internal"
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/proto"
 	"github.com/netbirdio/netbird/client/system"
+	"github.com/netbirdio/netbird/iface"
 	"github.com/netbirdio/netbird/util"
 )
 
@@ -147,11 +147,6 @@ func runInForegroundMode(ctx context.Context, cmd *cobra.Command) error {
 		ic.DNSRouteInterval = &dnsRouteInterval
 	}
 
-	providedSetupKey, err := getSetupKey()
-	if err != nil {
-		return err
-	}
-
 	config, err := internal.UpdateOrCreateConfig(ic)
 	if err != nil {
 		return fmt.Errorf("get config file: %v", err)
@@ -159,7 +154,7 @@ func runInForegroundMode(ctx context.Context, cmd *cobra.Command) error {
 
 	config, _ = internal.UpdateOldManagementURL(ctx, config, configPath)
 
-	err = foregroundLogin(ctx, cmd, config, providedSetupKey)
+	err = foregroundLogin(ctx, cmd, config, setupKey)
 	if err != nil {
 		return fmt.Errorf("foreground login failed: %v", err)
 	}
@@ -168,10 +163,7 @@ func runInForegroundMode(ctx context.Context, cmd *cobra.Command) error {
 	ctx, cancel = context.WithCancel(ctx)
 	SetupCloseHandler(ctx, cancel)
 
-	r := peer.NewRecorder(config.ManagementURL.String())
-	r.GetFullStatus()
-
-	connectClient := internal.NewConnectClient(ctx, config, r)
+	connectClient := internal.NewConnectClient(ctx, config, peer.NewRecorder(config.ManagementURL.String()))
 	return connectClient.Run()
 }
 
@@ -207,13 +199,8 @@ func runInDaemonMode(ctx context.Context, cmd *cobra.Command) error {
 		return nil
 	}
 
-	providedSetupKey, err := getSetupKey()
-	if err != nil {
-		return err
-	}
-
 	loginRequest := proto.LoginRequest{
-		SetupKey:             providedSetupKey,
+		SetupKey:             setupKey,
 		ManagementUrl:        managementURL,
 		AdminURL:             adminURL,
 		NatExternalIPs:       natExternalIPs,

client/cmd/up_daemon_test.go

@@ -2,7 +2,6 @@ package cmd
 
 import (
 	"context"
-	"os"
 	"testing"
 	"time"
 
@@ -41,36 +40,6 @@ func TestUpDaemon(t *testing.T) {
 		return
 	}
 
-	// Test the setup-key-file flag.
-	tempFile, err := os.CreateTemp("", "setup-key")
-	if err != nil {
-		t.Errorf("could not create temp file, got error %v", err)
-		return
-	}
-	defer os.Remove(tempFile.Name())
-	if _, err := tempFile.Write([]byte("A2C8E62B-38F5-4553-B31E-DD66C696CEBB")); err != nil {
-		t.Errorf("could not write to temp file, got error %v", err)
-		return
-	}
-	if err := tempFile.Close(); err != nil {
-		t.Errorf("unable to close file, got error %v", err)
-	}
-	rootCmd.SetArgs([]string{
-		"login",
-		"--daemon-addr", "tcp://" + cliAddr,
-		"--setup-key-file", tempFile.Name(),
-		"--log-file", "",
-	})
-	if err := rootCmd.Execute(); err != nil {
-		t.Errorf("expected no error while running up command, got %v", err)
-		return
-	}
-	time.Sleep(time.Second * 3)
-	if status, err := state.Status(); err != nil && status != internal.StatusIdle {
-		t.Errorf("wrong status after login: %s, %v", internal.StatusIdle, err)
-		return
-	}
-
 	rootCmd.SetArgs([]string{
 		"up",
 		"--daemon-addr", "tcp://" + cliAddr,

client/errors/errors.go

@@ -8,8 +8,8 @@ import (
 )
 
 func formatError(es []error) string {
-	if len(es) == 1 {
-		return fmt.Sprintf("1 error occurred:\n\t* %s", es[0])
+	if len(es) == 0 {
+		return fmt.Sprintf("0 error occurred:\n\t* %s", es[0])
 	}
 
 	points := make([]string, len(es))

client/firewall/iface.go

@@ -1,13 +1,11 @@
 package firewall
 
-import (
-	"github.com/netbirdio/netbird/client/iface/device"
-)
+import "github.com/netbirdio/netbird/iface"
 
 // IFaceMapper defines subset methods of interface required for manager
 type IFaceMapper interface {
 	Name() string
-	Address() device.WGAddress
+	Address() iface.WGAddress
 	IsUserspaceBind() bool
-	SetFilter(device.PacketFilter) error
+	SetFilter(iface.PacketFilter) error
 }

client/firewall/iptables/acl_linux.go

@@ -19,22 +19,24 @@ const (
 	// rules chains contains the effective ACL rules
 	chainNameInputRules  = "NETBIRD-ACL-INPUT"
 	chainNameOutputRules = "NETBIRD-ACL-OUTPUT"
+
+	postRoutingMark = "0x000007e4"
 )
 
 type aclManager struct {
-	iptablesClient     *iptables.IPTables
-	wgIface            iFaceMapper
-	routingFwChainName string
+	iptablesClient      *iptables.IPTables
+	wgIface             iFaceMapper
+	routeingFwChainName string
 
 	entries    map[string][][]string
 	ipsetStore *ipsetStore
 }
 
-func newAclManager(iptablesClient *iptables.IPTables, wgIface iFaceMapper, routingFwChainName string) (*aclManager, error) {
+func newAclManager(iptablesClient *iptables.IPTables, wgIface iFaceMapper, routeingFwChainName string) (*aclManager, error) {
 	m := &aclManager{
-		iptablesClient:     iptablesClient,
-		wgIface:            wgIface,
-		routingFwChainName: routingFwChainName,
+		iptablesClient:      iptablesClient,
+		wgIface:             wgIface,
+		routeingFwChainName: routeingFwChainName,
 
 		entries:    make(map[string][][]string),
 		ipsetStore: newIpsetStore(),
@@ -59,7 +61,7 @@ func newAclManager(iptablesClient *iptables.IPTables, wgIface iFaceMapper, routi
 	return m, nil
 }
 
-func (m *aclManager) AddPeerFiltering(
+func (m *aclManager) AddFiltering(
 	ip net.IP,
 	protocol firewall.Protocol,
 	sPort *firewall.Port,
@@ -125,7 +127,7 @@ func (m *aclManager) AddPeerFiltering(
 		return nil, fmt.Errorf("rule already exists")
 	}
 
-	if err := m.iptablesClient.Append("filter", chain, specs...); err != nil {
+	if err := m.iptablesClient.Insert("filter", chain, 1, specs...); err != nil {
 		return nil, err
 	}
 
@@ -137,16 +139,28 @@ func (m *aclManager) AddPeerFiltering(
 		chain:     chain,
 	}
 
-	return []firewall.Rule{rule}, nil
+	if !shouldAddToPrerouting(protocol, dPort, direction) {
+		return []firewall.Rule{rule}, nil
+	}
+
+	rulePrerouting, err := m.addPreroutingFilter(ipsetName, string(protocol), dPortVal, ip)
+	if err != nil {
+		return []firewall.Rule{rule}, err
+	}
+	return []firewall.Rule{rule, rulePrerouting}, nil
 }
 
-// DeletePeerRule from the firewall by rule definition
-func (m *aclManager) DeletePeerRule(rule firewall.Rule) error {
+// DeleteRule from the firewall by rule definition
+func (m *aclManager) DeleteRule(rule firewall.Rule) error {
 	r, ok := rule.(*Rule)
 	if !ok {
 		return fmt.Errorf("invalid rule type")
 	}
 
+	if r.chain == "PREROUTING" {
+		goto DELETERULE
+	}
+
 	if ipsetList, ok := m.ipsetStore.ipset(r.ipsetName); ok {
 		// delete IP from ruleset IPs list and ipset
 		if _, ok := ipsetList.ips[r.ip]; ok {
@@ -171,7 +185,14 @@ func (m *aclManager) DeletePeerRule(rule firewall.Rule) error {
 		}
 	}
 
-	err := m.iptablesClient.Delete(tableName, r.chain, r.specs...)
+DELETERULE:
+	var table string
+	if r.chain == "PREROUTING" {
+		table = "mangle"
+	} else {
+		table = "filter"
+	}
+	err := m.iptablesClient.Delete(table, r.chain, r.specs...)
 	if err != nil {
 		log.Debugf("failed to delete rule, %s, %v: %s", r.chain, r.specs, err)
 	}
@@ -182,6 +203,44 @@ func (m *aclManager) Reset() error {
 	return m.cleanChains()
 }
 
+func (m *aclManager) addPreroutingFilter(ipsetName string, protocol string, port string, ip net.IP) (*Rule, error) {
+	var src []string
+	if ipsetName != "" {
+		src = []string{"-m", "set", "--set", ipsetName, "src"}
+	} else {
+		src = []string{"-s", ip.String()}
+	}
+	specs := []string{
+		"-d", m.wgIface.Address().IP.String(),
+		"-p", protocol,
+		"--dport", port,
+		"-j", "MARK", "--set-mark", postRoutingMark,
+	}
+
+	specs = append(src, specs...)
+
+	ok, err := m.iptablesClient.Exists("mangle", "PREROUTING", specs...)
+	if err != nil {
+		return nil, fmt.Errorf("failed to check rule: %w", err)
+	}
+	if ok {
+		return nil, fmt.Errorf("rule already exists")
+	}
+
+	if err := m.iptablesClient.Insert("mangle", "PREROUTING", 1, specs...); err != nil {
+		return nil, err
+	}
+
+	rule := &Rule{
+		ruleID:    uuid.New().String(),
+		specs:     specs,
+		ipsetName: ipsetName,
+		ip:        ip.String(),
+		chain:     "PREROUTING",
+	}
+	return rule, nil
+}
+
 // todo write less destructive cleanup mechanism
 func (m *aclManager) cleanChains() error {
 	ok, err := m.iptablesClient.ChainExists(tableName, chainNameOutputRules)
@@ -232,6 +291,25 @@ func (m *aclManager) cleanChains() error {
 		}
 	}
 
+	ok, err = m.iptablesClient.ChainExists("mangle", "PREROUTING")
+	if err != nil {
+		log.Debugf("failed to list chains: %s", err)
+		return err
+	}
+	if ok {
+		for _, rule := range m.entries["PREROUTING"] {
+			err := m.iptablesClient.DeleteIfExists("mangle", "PREROUTING", rule...)
+			if err != nil {
+				log.Errorf("failed to delete rule: %v, %s", rule, err)
+			}
+		}
+		err = m.iptablesClient.ClearChain("mangle", "PREROUTING")
+		if err != nil {
+			log.Debugf("failed to clear %s chain: %s", "PREROUTING", err)
+			return err
+		}
+	}
+
 	for _, ipsetName := range m.ipsetStore.ipsetNames() {
 		if err := ipset.Flush(ipsetName); err != nil {
 			log.Errorf("flush ipset %q during reset: %v", ipsetName, err)
@@ -260,9 +338,17 @@ func (m *aclManager) createDefaultChains() error {
 
 	for chainName, rules := range m.entries {
 		for _, rule := range rules {
-			if err := m.iptablesClient.InsertUnique(tableName, chainName, 1, rule...); err != nil {
-				log.Debugf("failed to create input chain jump rule: %s", err)
-				return err
+			if chainName == "FORWARD" {
+				// position 2 because we add it after router's, jump rule
+				if err := m.iptablesClient.InsertUnique(tableName, "FORWARD", 2, rule...); err != nil {
+					log.Debugf("failed to create input chain jump rule: %s", err)
+					return err
+				}
+			} else {
+				if err := m.iptablesClient.AppendUnique(tableName, chainName, rule...); err != nil {
+					log.Debugf("failed to create input chain jump rule: %s", err)
+					return err
+				}
 			}
 		}
 	}
@@ -270,29 +356,40 @@ func (m *aclManager) createDefaultChains() error {
 	return nil
 }
 
-// seedInitialEntries adds default rules to the entries map, rules are inserted on pos 1, hence the order is reversed.
-// We want to make sure our traffic is not dropped by existing rules.
-
-// The existing FORWARD rules/policies decide outbound traffic towards our interface.
-// In case the FORWARD policy is set to "drop", we add an established/related rule to allow return traffic for the inbound rule.
-
-// The OUTPUT chain gets an extra rule to allow traffic to any set up routes, the return traffic is handled by the INPUT related/established rule.
 func (m *aclManager) seedInitialEntries() {
+	m.appendToEntries("INPUT",
+		[]string{"-i", m.wgIface.Name(), "!", "-s", m.wgIface.Address().String(), "-d", m.wgIface.Address().String(), "-j", "ACCEPT"})
 
-	established := getConntrackEstablished()
+	m.appendToEntries("INPUT",
+		[]string{"-i", m.wgIface.Name(), "-s", m.wgIface.Address().String(), "!", "-d", m.wgIface.Address().String(), "-j", "ACCEPT"})
+
+	m.appendToEntries("INPUT",
+		[]string{"-i", m.wgIface.Name(), "-s", m.wgIface.Address().String(), "-d", m.wgIface.Address().String(), "-j", chainNameInputRules})
 
 	m.appendToEntries("INPUT", []string{"-i", m.wgIface.Name(), "-j", "DROP"})
-	m.appendToEntries("INPUT", []string{"-i", m.wgIface.Name(), "-j", chainNameInputRules})
-	m.appendToEntries("INPUT", append([]string{"-i", m.wgIface.Name()}, established...))
+
+	m.appendToEntries("OUTPUT",
+		[]string{"-o", m.wgIface.Name(), "!", "-s", m.wgIface.Address().String(), "-d", m.wgIface.Address().String(), "-j", "ACCEPT"})
+
+	m.appendToEntries("OUTPUT",
+		[]string{"-o", m.wgIface.Name(), "-s", m.wgIface.Address().String(), "!", "-d", m.wgIface.Address().String(), "-j", "ACCEPT"})
+
+	m.appendToEntries("OUTPUT",
+		[]string{"-o", m.wgIface.Name(), "-s", m.wgIface.Address().String(), "-d", m.wgIface.Address().String(), "-j", chainNameOutputRules})
 
 	m.appendToEntries("OUTPUT", []string{"-o", m.wgIface.Name(), "-j", "DROP"})
-	m.appendToEntries("OUTPUT", []string{"-o", m.wgIface.Name(), "-j", chainNameOutputRules})
-	m.appendToEntries("OUTPUT", []string{"-o", m.wgIface.Name(), "!", "-d", m.wgIface.Address().String(), "-j", "ACCEPT"})
-	m.appendToEntries("OUTPUT", append([]string{"-o", m.wgIface.Name()}, established...))
 
 	m.appendToEntries("FORWARD", []string{"-i", m.wgIface.Name(), "-j", "DROP"})
-	m.appendToEntries("FORWARD", []string{"-i", m.wgIface.Name(), "-j", m.routingFwChainName})
-	m.appendToEntries("FORWARD", append([]string{"-o", m.wgIface.Name()}, established...))
+	m.appendToEntries("FORWARD", []string{"-i", m.wgIface.Name(), "-j", chainNameInputRules})
+	m.appendToEntries("FORWARD",
+		[]string{"-o", m.wgIface.Name(), "-m", "mark", "--mark", postRoutingMark, "-j", "ACCEPT"})
+	m.appendToEntries("FORWARD",
+		[]string{"-i", m.wgIface.Name(), "-m", "mark", "--mark", postRoutingMark, "-j", "ACCEPT"})
+	m.appendToEntries("FORWARD", []string{"-o", m.wgIface.Name(), "-j", m.routeingFwChainName})
+	m.appendToEntries("FORWARD", []string{"-i", m.wgIface.Name(), "-j", m.routeingFwChainName})
+
+	m.appendToEntries("PREROUTING",
+		[]string{"-t", "mangle", "-i", m.wgIface.Name(), "!", "-s", m.wgIface.Address().String(), "-d", m.wgIface.Address().IP.String(), "-m", "mark", "--mark", postRoutingMark})
 }
 
 func (m *aclManager) appendToEntries(chainName string, spec []string) {
@@ -359,3 +456,18 @@ func transformIPsetName(ipsetName string, sPort, dPort string) string {
 		return ipsetName
 	}
 }
+
+func shouldAddToPrerouting(proto firewall.Protocol, dPort *firewall.Port, direction firewall.RuleDirection) bool {
+	if proto == "all" {
+		return false
+	}
+
+	if direction != firewall.RuleDirectionIN {
+		return false
+	}
+
+	if dPort == nil {
+		return false
+	}
+	return true
+}

client/firewall/iptables/manager_linux.go

@@ -4,14 +4,13 @@ import (
 	"context"
 	"fmt"
 	"net"
-	"net/netip"
 	"sync"
 
 	"github.com/coreos/go-iptables/iptables"
 	log "github.com/sirupsen/logrus"
 
 	firewall "github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/iface"
+	"github.com/netbirdio/netbird/iface"
 )
 
 // Manager of iptables firewall
@@ -22,7 +21,7 @@ type Manager struct {
 
 	ipv4Client *iptables.IPTables
 	aclMgr     *aclManager
-	router     *router
+	router     *routerManager
 }
 
 // iFaceMapper defines subset methods of interface required for manager
@@ -44,12 +43,12 @@ func Create(context context.Context, wgIface iFaceMapper) (*Manager, error) {
 		ipv4Client: iptablesClient,
 	}
 
-	m.router, err = newRouter(context, iptablesClient, wgIface)
+	m.router, err = newRouterManager(context, iptablesClient)
 	if err != nil {
 		log.Debugf("failed to initialize route related chains: %s", err)
 		return nil, err
 	}
-	m.aclMgr, err = newAclManager(iptablesClient, wgIface, chainRTFWD)
+	m.aclMgr, err = newAclManager(iptablesClient, wgIface, m.router.RouteingFwChainName())
 	if err != nil {
 		log.Debugf("failed to initialize ACL manager: %s", err)
 		return nil, err
@@ -58,10 +57,10 @@ func Create(context context.Context, wgIface iFaceMapper) (*Manager, error) {
 	return m, nil
 }
 
-// AddPeerFiltering adds a rule to the firewall
+// AddFiltering rule to the firewall
 //
 // Comment will be ignored because some system this feature is not supported
-func (m *Manager) AddPeerFiltering(
+func (m *Manager) AddFiltering(
 	ip net.IP,
 	protocol firewall.Protocol,
 	sPort *firewall.Port,
@@ -74,62 +73,33 @@ func (m *Manager) AddPeerFiltering(
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
-	return m.aclMgr.AddPeerFiltering(ip, protocol, sPort, dPort, direction, action, ipsetName)
+	return m.aclMgr.AddFiltering(ip, protocol, sPort, dPort, direction, action, ipsetName)
 }
 
-func (m *Manager) AddRouteFiltering(
-	sources [] netip.Prefix,
-	destination netip.Prefix,
-	proto firewall.Protocol,
-	sPort *firewall.Port,
-	dPort *firewall.Port,
-	action firewall.Action,
-) (firewall.Rule, error) {
+// DeleteRule from the firewall by rule definition
+func (m *Manager) DeleteRule(rule firewall.Rule) error {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
-	if !destination.Addr().Is4() {
-		return nil, fmt.Errorf("unsupported IP version: %s", destination.Addr().String())
-	}
-
-	return m.router.AddRouteFiltering(sources, destination, proto, sPort, dPort, action)
-}
-
-// DeletePeerRule from the firewall by rule definition
-func (m *Manager) DeletePeerRule(rule firewall.Rule) error {
-	m.mutex.Lock()
-	defer m.mutex.Unlock()
-
-	return m.aclMgr.DeletePeerRule(rule)
-}
-
-func (m *Manager) DeleteRouteRule(rule firewall.Rule) error {
-	m.mutex.Lock()
-	defer m.mutex.Unlock()
-
-	return m.router.DeleteRouteRule(rule)
+	return m.aclMgr.DeleteRule(rule)
 }
 
 func (m *Manager) IsServerRouteSupported() bool {
 	return true
 }
 
-func (m *Manager) AddNatRule(pair firewall.RouterPair) error {
+func (m *Manager) InsertRoutingRules(pair firewall.RouterPair) error {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
-	return m.router.AddNatRule(pair)
+	return m.router.InsertRoutingRules(pair)
 }
 
-func (m *Manager) RemoveNatRule(pair firewall.RouterPair) error {
+func (m *Manager) RemoveRoutingRules(pair firewall.RouterPair) error {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
-	return m.router.RemoveNatRule(pair)
-}
-
-func (m *Manager) SetLegacyManagement(isLegacy bool) error {
-	return firewall.SetLegacyManagement(m.router, isLegacy)
+	return m.router.RemoveRoutingRules(pair)
 }
 
 // Reset firewall to the default state
@@ -155,7 +125,7 @@ func (m *Manager) AllowNetbird() error {
 		return nil
 	}
 
-	_, err := m.AddPeerFiltering(
+	_, err := m.AddFiltering(
 		net.ParseIP("0.0.0.0"),
 		"all",
 		nil,
@@ -168,7 +138,7 @@ func (m *Manager) AllowNetbird() error {
 	if err != nil {
 		return fmt.Errorf("failed to allow netbird interface traffic: %w", err)
 	}
-	_, err = m.AddPeerFiltering(
+	_, err = m.AddFiltering(
 		net.ParseIP("0.0.0.0"),
 		"all",
 		nil,
@@ -183,7 +153,3 @@ func (m *Manager) AllowNetbird() error {
 
 // Flush doesn't need to be implemented for this manager
 func (m *Manager) Flush() error { return nil }
-
-func getConntrackEstablished() []string {
-	return []string{"-m", "conntrack", "--ctstate", "RELATED,ESTABLISHED", "-j", "ACCEPT"}
-}

client/firewall/iptables/manager_linux_test.go

@@ -11,24 +11,9 @@ import (
 	"github.com/stretchr/testify/require"
 
 	fw "github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/iface"
+	"github.com/netbirdio/netbird/iface"
 )
 
-var ifaceMock = &iFaceMock{
-	NameFunc: func() string {
-		return "lo"
-	},
-	AddressFunc: func() iface.WGAddress {
-		return iface.WGAddress{
-			IP: net.ParseIP("10.20.0.1"),
-			Network: &net.IPNet{
-				IP:   net.ParseIP("10.20.0.0"),
-				Mask: net.IPv4Mask(255, 255, 255, 0),
-			},
-		}
-	},
-}
-
 // iFaceMapper defines subset methods of interface required for manager
 type iFaceMock struct {
 	NameFunc    func() string
@@ -55,8 +40,23 @@ func TestIptablesManager(t *testing.T) {
 	ipv4Client, err := iptables.NewWithProtocol(iptables.ProtocolIPv4)
 	require.NoError(t, err)
 
+	mock := &iFaceMock{
+		NameFunc: func() string {
+			return "lo"
+		},
+		AddressFunc: func() iface.WGAddress {
+			return iface.WGAddress{
+				IP: net.ParseIP("10.20.0.1"),
+				Network: &net.IPNet{
+					IP:   net.ParseIP("10.20.0.0"),
+					Mask: net.IPv4Mask(255, 255, 255, 0),
+				},
+			}
+		},
+	}
+
 	// just check on the local interface
-	manager, err := Create(context.Background(), ifaceMock)
+	manager, err := Create(context.Background(), mock)
 	require.NoError(t, err)
 
 	time.Sleep(time.Second)
@@ -72,7 +72,7 @@ func TestIptablesManager(t *testing.T) {
 	t.Run("add first rule", func(t *testing.T) {
 		ip := net.ParseIP("10.20.0.2")
 		port := &fw.Port{Values: []int{8080}}
-		rule1, err = manager.AddPeerFiltering(ip, "tcp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept HTTP traffic")
+		rule1, err = manager.AddFiltering(ip, "tcp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept HTTP traffic")
 		require.NoError(t, err, "failed to add rule")
 
 		for _, r := range rule1 {
@@ -87,7 +87,7 @@ func TestIptablesManager(t *testing.T) {
 		port := &fw.Port{
 			Values: []int{8043: 8046},
 		}
-		rule2, err = manager.AddPeerFiltering(
+		rule2, err = manager.AddFiltering(
 			ip, "tcp", port, nil, fw.RuleDirectionIN, fw.ActionAccept, "", "accept HTTPS traffic from ports range")
 		require.NoError(t, err, "failed to add rule")
 
@@ -99,7 +99,7 @@ func TestIptablesManager(t *testing.T) {
 
 	t.Run("delete first rule", func(t *testing.T) {
 		for _, r := range rule1 {
-			err := manager.DeletePeerRule(r)
+			err := manager.DeleteRule(r)
 			require.NoError(t, err, "failed to delete rule")
 
 			checkRuleSpecs(t, ipv4Client, chainNameOutputRules, false, r.(*Rule).specs...)
@@ -108,7 +108,7 @@ func TestIptablesManager(t *testing.T) {
 
 	t.Run("delete second rule", func(t *testing.T) {
 		for _, r := range rule2 {
-			err := manager.DeletePeerRule(r)
+			err := manager.DeleteRule(r)
 			require.NoError(t, err, "failed to delete rule")
 		}
 
@@ -119,7 +119,7 @@ func TestIptablesManager(t *testing.T) {
 		// add second rule
 		ip := net.ParseIP("10.20.0.3")
 		port := &fw.Port{Values: []int{5353}}
-		_, err = manager.AddPeerFiltering(ip, "udp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept Fake DNS traffic")
+		_, err = manager.AddFiltering(ip, "udp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept Fake DNS traffic")
 		require.NoError(t, err, "failed to add rule")
 
 		err = manager.Reset()
@@ -170,7 +170,7 @@ func TestIptablesManagerIPSet(t *testing.T) {
 	t.Run("add first rule with set", func(t *testing.T) {
 		ip := net.ParseIP("10.20.0.2")
 		port := &fw.Port{Values: []int{8080}}
-		rule1, err = manager.AddPeerFiltering(
+		rule1, err = manager.AddFiltering(
 			ip, "tcp", nil, port, fw.RuleDirectionOUT,
 			fw.ActionAccept, "default", "accept HTTP traffic",
 		)
@@ -189,7 +189,7 @@ func TestIptablesManagerIPSet(t *testing.T) {
 		port := &fw.Port{
 			Values: []int{443},
 		}
-		rule2, err = manager.AddPeerFiltering(
+		rule2, err = manager.AddFiltering(
 			ip, "tcp", port, nil, fw.RuleDirectionIN, fw.ActionAccept,
 			"default", "accept HTTPS traffic from ports range",
 		)
@@ -202,7 +202,7 @@ func TestIptablesManagerIPSet(t *testing.T) {
 
 	t.Run("delete first rule", func(t *testing.T) {
 		for _, r := range rule1 {
-			err := manager.DeletePeerRule(r)
+			err := manager.DeleteRule(r)
 			require.NoError(t, err, "failed to delete rule")
 
 			require.NotContains(t, manager.aclMgr.ipsetStore.ipsets, r.(*Rule).ruleID, "rule must be removed form the ruleset index")
@@ -211,7 +211,7 @@ func TestIptablesManagerIPSet(t *testing.T) {
 
 	t.Run("delete second rule", func(t *testing.T) {
 		for _, r := range rule2 {
-			err := manager.DeletePeerRule(r)
+			err := manager.DeleteRule(r)
 			require.NoError(t, err, "failed to delete rule")
 
 			require.Empty(t, manager.aclMgr.ipsetStore.ipsets, "rulesets index after removed second rule must be empty")
@@ -269,9 +269,9 @@ func TestIptablesCreatePerformance(t *testing.T) {
 			for i := 0; i < testMax; i++ {
 				port := &fw.Port{Values: []int{1000 + i}}
 				if i%2 == 0 {
-					_, err = manager.AddPeerFiltering(ip, "tcp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept HTTP traffic")
+					_, err = manager.AddFiltering(ip, "tcp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept HTTP traffic")
 				} else {
-					_, err = manager.AddPeerFiltering(ip, "tcp", nil, port, fw.RuleDirectionIN, fw.ActionAccept, "", "accept HTTP traffic")
+					_, err = manager.AddFiltering(ip, "tcp", nil, port, fw.RuleDirectionIN, fw.ActionAccept, "", "accept HTTP traffic")
 				}
 
 				require.NoError(t, err, "failed to add rule")

client/firewall/iptables/router_linux.go

@@ -5,478 +5,368 @@ package iptables
 import (
 	"context"
 	"fmt"
-	"net/netip"
-	"strconv"
 	"strings"
 
 	"github.com/coreos/go-iptables/iptables"
-	"github.com/hashicorp/go-multierror"
-	"github.com/nadoo/ipset"
 	log "github.com/sirupsen/logrus"
 
-	nberrors "github.com/netbirdio/netbird/client/errors"
 	firewall "github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/internal/acl/id"
-	"github.com/netbirdio/netbird/client/internal/routemanager/refcounter"
 )
 
 const (
-	ipv4Nat = "netbird-rt-nat"
+	Ipv4Forwarding = "netbird-rt-forwarding"
+	ipv4Nat        = "netbird-rt-nat"
 )
 
 // constants needed to manage and create iptable rules
 const (
 	tableFilter             = "filter"
 	tableNat                = "nat"
+	chainFORWARD            = "FORWARD"
 	chainPOSTROUTING        = "POSTROUTING"
 	chainRTNAT              = "NETBIRD-RT-NAT"
 	chainRTFWD              = "NETBIRD-RT-FWD"
 	routingFinalForwardJump = "ACCEPT"
 	routingFinalNatJump     = "MASQUERADE"
-
-	matchSet = "--match-set"
 )
 
-type routeFilteringRuleParams struct {
-	Sources     []netip.Prefix
-	Destination netip.Prefix
-	Proto       firewall.Protocol
-	SPort       *firewall.Port
-	DPort       *firewall.Port
-	Direction   firewall.RuleDirection
-	Action      firewall.Action
-	SetName     string
+type routerManager struct {
+	ctx            context.Context
+	stop           context.CancelFunc
+	iptablesClient *iptables.IPTables
+	rules          map[string][]string
 }
 
-type router struct {
-	ctx              context.Context
-	stop             context.CancelFunc
-	iptablesClient   *iptables.IPTables
-	rules            map[string][]string
-	ipsetCounter     *refcounter.Counter[string, []netip.Prefix, struct{}]
-	wgIface          iFaceMapper
-	legacyManagement bool
-}
-
-func newRouter(parentCtx context.Context, iptablesClient *iptables.IPTables, wgIface iFaceMapper) (*router, error) {
+func newRouterManager(parentCtx context.Context, iptablesClient *iptables.IPTables) (*routerManager, error) {
 	ctx, cancel := context.WithCancel(parentCtx)
-	r := &router{
+	m := &routerManager{
 		ctx:            ctx,
 		stop:           cancel,
 		iptablesClient: iptablesClient,
 		rules:          make(map[string][]string),
-		wgIface:        wgIface,
 	}
 
-	r.ipsetCounter = refcounter.New(
-		r.createIpSet,
-		func(name string, _ struct{}) error {
-			return r.deleteIpSet(name)
-		},
-	)
-
-	if err := ipset.Init(); err != nil {
-		return nil, fmt.Errorf("init ipset: %w", err)
-	}
-
-	err := r.cleanUpDefaultForwardRules()
+	err := m.cleanUpDefaultForwardRules()
 	if err != nil {
-		log.Errorf("cleanup routing rules: %s", err)
+		log.Errorf("failed to cleanup routing rules: %s", err)
 		return nil, err
 	}
-	err = r.createContainers()
+	err = m.createContainers()
 	if err != nil {
-		log.Errorf("create containers for route: %s", err)
+		log.Errorf("failed to create containers for route: %s", err)
 	}
-	return r, err
+	return m, err
 }
 
-func (r *router) AddRouteFiltering(
-	sources []netip.Prefix,
-	destination netip.Prefix,
-	proto firewall.Protocol,
-	sPort *firewall.Port,
-	dPort *firewall.Port,
-	action firewall.Action,
-) (firewall.Rule, error) {
-	ruleKey := id.GenerateRouteRuleKey(sources, destination, proto, sPort, dPort, action)
-	if _, ok := r.rules[string(ruleKey)]; ok {
-		return ruleKey, nil
+// InsertRoutingRules inserts an iptables rule pair to the forwarding chain and if enabled, to the nat chain
+func (i *routerManager) InsertRoutingRules(pair firewall.RouterPair) error {
+	err := i.insertRoutingRule(firewall.ForwardingFormat, tableFilter, chainRTFWD, routingFinalForwardJump, pair)
+	if err != nil {
+		return err
 	}
 
-	var setName string
-	if len(sources) > 1 {
-		setName = firewall.GenerateSetName(sources)
-		if _, err := r.ipsetCounter.Increment(setName, sources); err != nil {
-			return nil, fmt.Errorf("create or get ipset: %w", err)
-		}
-	}
-
-	params := routeFilteringRuleParams{
-		Sources:     sources,
-		Destination: destination,
-		Proto:       proto,
-		SPort:       sPort,
-		DPort:       dPort,
-		Action:      action,
-		SetName:     setName,
-	}
-
-	rule := genRouteFilteringRuleSpec(params)
-	if err := r.iptablesClient.Append(tableFilter, chainRTFWD, rule...); err != nil {
-		return nil, fmt.Errorf("add route rule: %v", err)
-	}
-
-	r.rules[string(ruleKey)] = rule
-
-	return ruleKey, nil
-}
-
-func (r *router) DeleteRouteRule(rule firewall.Rule) error {
-	ruleKey := rule.GetRuleID()
-
-	if rule, exists := r.rules[ruleKey]; exists {
-		setName := r.findSetNameInRule(rule)
-
-		if err := r.iptablesClient.Delete(tableFilter, chainRTFWD, rule...); err != nil {
-			return fmt.Errorf("delete route rule: %v", err)
-		}
-		delete(r.rules, ruleKey)
-
-		if setName != "" {
-			if _, err := r.ipsetCounter.Decrement(setName); err != nil {
-				return fmt.Errorf("failed to remove ipset: %w", err)
-			}
-		}
-	} else {
-		log.Debugf("route rule %s not found", ruleKey)
-	}
-
-	return nil
-}
-
-func (r *router) findSetNameInRule(rule []string) string {
-	for i, arg := range rule {
-		if arg == "-m" && i+3 < len(rule) && rule[i+1] == "set" && rule[i+2] == matchSet {
-			return rule[i+3]
-		}
-	}
-	return ""
-}
-
-func (r *router) createIpSet(setName string, sources []netip.Prefix) (struct{}, error) {
-	if err := ipset.Create(setName, ipset.OptTimeout(0)); err != nil {
-		return struct{}{}, fmt.Errorf("create set %s: %w", setName, err)
-	}
-
-	for _, prefix := range sources {
-		if err := ipset.AddPrefix(setName, prefix); err != nil {
-			return struct{}{}, fmt.Errorf("add element to set %s: %w", setName, err)
-		}
-	}
-
-	return struct{}{}, nil
-}
-
-func (r *router) deleteIpSet(setName string) error {
-	if err := ipset.Destroy(setName); err != nil {
-		return fmt.Errorf("destroy set %s: %w", setName, err)
-	}
-	return nil
-}
-
-// AddNatRule inserts an iptables rule pair into the nat chain
-func (r *router) AddNatRule(pair firewall.RouterPair) error {
-	if r.legacyManagement {
-		log.Warnf("This peer is connected to a NetBird Management service with an older version. Allowing all traffic for %s", pair.Destination)
-		if err := r.addLegacyRouteRule(pair); err != nil {
-			return fmt.Errorf("add legacy routing rule: %w", err)
-		}
+	err = i.insertRoutingRule(firewall.InForwardingFormat, tableFilter, chainRTFWD, routingFinalForwardJump, firewall.GetInPair(pair))
+	if err != nil {
+		return err
 	}
 
 	if !pair.Masquerade {
 		return nil
 	}
 
-	if err := r.addNatRule(pair); err != nil {
-		return fmt.Errorf("add nat rule: %w", err)
-	}
-
-	if err := r.addNatRule(firewall.GetInversePair(pair)); err != nil {
-		return fmt.Errorf("add inverse nat rule: %w", err)
-	}
-
-	return nil
-}
-
-// RemoveNatRule removes an iptables rule pair from forwarding and nat chains
-func (r *router) RemoveNatRule(pair firewall.RouterPair) error {
-	if err := r.removeNatRule(pair); err != nil {
-		return fmt.Errorf("remove nat rule: %w", err)
-	}
-
-	if err := r.removeNatRule(firewall.GetInversePair(pair)); err != nil {
-		return fmt.Errorf("remove inverse nat rule: %w", err)
-	}
-
-	if err := r.removeLegacyRouteRule(pair); err != nil {
-		return fmt.Errorf("remove legacy routing rule: %w", err)
-	}
-
-	return nil
-}
-
-// addLegacyRouteRule adds a legacy routing rule for mgmt servers pre route acls
-func (r *router) addLegacyRouteRule(pair firewall.RouterPair) error {
-	ruleKey := firewall.GenKey(firewall.ForwardingFormat, pair)
-
-	if err := r.removeLegacyRouteRule(pair); err != nil {
+	err = i.addNATRule(firewall.NatFormat, tableNat, chainRTNAT, routingFinalNatJump, pair)
+	if err != nil {
 		return err
 	}
 
-	rule := []string{"-s", pair.Source.String(), "-d", pair.Destination.String(), "-j", routingFinalForwardJump}
-	if err := r.iptablesClient.Append(tableFilter, chainRTFWD, rule...); err != nil {
-		return fmt.Errorf("add legacy forwarding rule %s -> %s: %v", pair.Source, pair.Destination, err)
-	}
-
-	r.rules[ruleKey] = rule
-
-	return nil
-}
-
-func (r *router) removeLegacyRouteRule(pair firewall.RouterPair) error {
-	ruleKey := firewall.GenKey(firewall.ForwardingFormat, pair)
-
-	if rule, exists := r.rules[ruleKey]; exists {
-		if err := r.iptablesClient.DeleteIfExists(tableFilter, chainRTFWD, rule...); err != nil {
-			return fmt.Errorf("remove legacy forwarding rule %s -> %s: %v", pair.Source, pair.Destination, err)
-		}
-		delete(r.rules, ruleKey)
-	} else {
-		log.Debugf("legacy forwarding rule %s not found", ruleKey)
+	err = i.addNATRule(firewall.InNatFormat, tableNat, chainRTNAT, routingFinalNatJump, firewall.GetInPair(pair))
+	if err != nil {
+		return err
 	}
 
 	return nil
 }
 
-// GetLegacyManagement returns the current legacy management mode
-func (r *router) GetLegacyManagement() bool {
-	return r.legacyManagement
-}
+// insertRoutingRule inserts an iptables rule
+func (i *routerManager) insertRoutingRule(keyFormat, table, chain, jump string, pair firewall.RouterPair) error {
+	var err error
 
-// SetLegacyManagement sets the route manager to use legacy management mode
-func (r *router) SetLegacyManagement(isLegacy bool) {
-	r.legacyManagement = isLegacy
-}
-
-// RemoveAllLegacyRouteRules removes all legacy routing rules for mgmt servers pre route acls
-func (r *router) RemoveAllLegacyRouteRules() error {
-	var merr *multierror.Error
-	for k, rule := range r.rules {
-		if !strings.HasPrefix(k, firewall.ForwardingFormatPrefix) {
-			continue
+	ruleKey := firewall.GenKey(keyFormat, pair.ID)
+	rule := genRuleSpec(jump, pair.Source, pair.Destination)
+	existingRule, found := i.rules[ruleKey]
+	if found {
+		err = i.iptablesClient.DeleteIfExists(table, chain, existingRule...)
+		if err != nil {
+			return fmt.Errorf("error while removing existing %s rule for %s: %v", getIptablesRuleType(table), pair.Destination, err)
 		}
-		if err := r.iptablesClient.DeleteIfExists(tableFilter, chainRTFWD, rule...); err != nil {
-			merr = multierror.Append(merr, fmt.Errorf("remove legacy forwarding rule: %v", err))
+		delete(i.rules, ruleKey)
+	}
+
+	err = i.iptablesClient.Insert(table, chain, 1, rule...)
+	if err != nil {
+		return fmt.Errorf("error while adding new %s rule for %s: %v", getIptablesRuleType(table), pair.Destination, err)
+	}
+
+	i.rules[ruleKey] = rule
+
+	return nil
+}
+
+// RemoveRoutingRules removes an iptables rule pair from forwarding and nat chains
+func (i *routerManager) RemoveRoutingRules(pair firewall.RouterPair) error {
+	err := i.removeRoutingRule(firewall.ForwardingFormat, tableFilter, chainRTFWD, pair)
+	if err != nil {
+		return err
+	}
+
+	err = i.removeRoutingRule(firewall.InForwardingFormat, tableFilter, chainRTFWD, firewall.GetInPair(pair))
+	if err != nil {
+		return err
+	}
+
+	if !pair.Masquerade {
+		return nil
+	}
+
+	err = i.removeRoutingRule(firewall.NatFormat, tableNat, chainRTNAT, pair)
+	if err != nil {
+		return err
+	}
+
+	err = i.removeRoutingRule(firewall.InNatFormat, tableNat, chainRTNAT, firewall.GetInPair(pair))
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (i *routerManager) removeRoutingRule(keyFormat, table, chain string, pair firewall.RouterPair) error {
+	var err error
+
+	ruleKey := firewall.GenKey(keyFormat, pair.ID)
+	existingRule, found := i.rules[ruleKey]
+	if found {
+		err = i.iptablesClient.DeleteIfExists(table, chain, existingRule...)
+		if err != nil {
+			return fmt.Errorf("error while removing existing %s rule for %s: %v", getIptablesRuleType(table), pair.Destination, err)
 		}
 	}
-	return nberrors.FormatErrorOrNil(merr)
+	delete(i.rules, ruleKey)
+
+	return nil
 }
 
-func (r *router) Reset() error {
-	var merr *multierror.Error
-	if err := r.cleanUpDefaultForwardRules(); err != nil {
-		merr = multierror.Append(merr, err)
-	}
-	r.rules = make(map[string][]string)
-
-	if err := r.ipsetCounter.Flush(); err != nil {
-		merr = multierror.Append(merr, err)
-	}
-
-	return nberrors.FormatErrorOrNil(merr)
+func (i *routerManager) RouteingFwChainName() string {
+	return chainRTFWD
 }
 
-func (r *router) cleanUpDefaultForwardRules() error {
-	err := r.cleanJumpRules()
+func (i *routerManager) Reset() error {
+	err := i.cleanUpDefaultForwardRules()
+	if err != nil {
+		return err
+	}
+	i.rules = make(map[string][]string)
+	return nil
+}
+
+func (i *routerManager) cleanUpDefaultForwardRules() error {
+	err := i.cleanJumpRules()
 	if err != nil {
 		return err
 	}
 
 	log.Debug("flushing routing related tables")
-	for _, chain := range []string{chainRTFWD, chainRTNAT} {
-		table := tableFilter
-		if chain == chainRTNAT {
-			table = tableNat
-		}
-
-		ok, err := r.iptablesClient.ChainExists(table, chain)
-		if err != nil {
-			log.Errorf("failed check chain %s, error: %v", chain, err)
-			return err
-		} else if ok {
-			err = r.iptablesClient.ClearAndDeleteChain(table, chain)
-			if err != nil {
-				log.Errorf("failed cleaning chain %s, error: %v", chain, err)
-				return err
-			}
-		}
-	}
-
-	return nil
-}
-
-func (r *router) createContainers() error {
-	for _, chain := range []string{chainRTFWD, chainRTNAT} {
-		if err := r.createAndSetupChain(chain); err != nil {
-			return fmt.Errorf("create chain %s: %v", chain, err)
-		}
-	}
-
-	if err := r.insertEstablishedRule(chainRTFWD); err != nil {
-		return fmt.Errorf("insert established rule: %v", err)
-	}
-
-	return r.addJumpRules()
-}
-
-func (r *router) createAndSetupChain(chain string) error {
-	table := r.getTableForChain(chain)
-
-	if err := r.iptablesClient.NewChain(table, chain); err != nil {
-		return fmt.Errorf("failed creating chain %s, error: %v", chain, err)
-	}
-
-	return nil
-}
-
-func (r *router) getTableForChain(chain string) string {
-	if chain == chainRTNAT {
-		return tableNat
-	}
-	return tableFilter
-}
-
-func (r *router) insertEstablishedRule(chain string) error {
-	establishedRule := getConntrackEstablished()
-
-	err := r.iptablesClient.Insert(tableFilter, chain, 1, establishedRule...)
-	if err != nil {
-		return fmt.Errorf("failed to insert established rule: %v", err)
-	}
-
-	ruleKey := "established-" + chain
-	r.rules[ruleKey] = establishedRule
-
-	return nil
-}
-
-func (r *router) addJumpRules() error {
-	rule := []string{"-j", chainRTNAT}
-	err := r.iptablesClient.Insert(tableNat, chainPOSTROUTING, 1, rule...)
+	ok, err := i.iptablesClient.ChainExists(tableFilter, chainRTFWD)
 	if err != nil {
+		log.Errorf("failed check chain %s,error: %v", chainRTFWD, err)
 		return err
-	}
-	r.rules[ipv4Nat] = rule
-
-	return nil
-}
-
-func (r *router) cleanJumpRules() error {
-	rule, found := r.rules[ipv4Nat]
-	if found {
-		err := r.iptablesClient.DeleteIfExists(tableNat, chainPOSTROUTING, rule...)
+	} else if ok {
+		err = i.iptablesClient.ClearAndDeleteChain(tableFilter, chainRTFWD)
 		if err != nil {
-			return fmt.Errorf("failed cleaning rule from chain %s, err: %v", chainPOSTROUTING, err)
+			log.Errorf("failed cleaning chain %s,error: %v", chainRTFWD, err)
+			return err
 		}
 	}
 
-	return nil
-}
-
-func (r *router) addNatRule(pair firewall.RouterPair) error {
-	ruleKey := firewall.GenKey(firewall.NatFormat, pair)
-
-	if rule, exists := r.rules[ruleKey]; exists {
-		if err := r.iptablesClient.DeleteIfExists(tableNat, chainRTNAT, rule...); err != nil {
-			return fmt.Errorf("error while removing existing NAT rule for %s: %v", pair.Destination, err)
+	ok, err = i.iptablesClient.ChainExists(tableNat, chainRTNAT)
+	if err != nil {
+		log.Errorf("failed check chain %s,error: %v", chainRTNAT, err)
+		return err
+	} else if ok {
+		err = i.iptablesClient.ClearAndDeleteChain(tableNat, chainRTNAT)
+		if err != nil {
+			log.Errorf("failed cleaning chain %s,error: %v", chainRTNAT, err)
+			return err
 		}
-		delete(r.rules, ruleKey)
 	}
-
-	rule := genRuleSpec(routingFinalNatJump, pair.Source, pair.Destination, r.wgIface.Name(), pair.Inverse)
-	if err := r.iptablesClient.Append(tableNat, chainRTNAT, rule...); err != nil {
-		return fmt.Errorf("error while appending new NAT rule for %s: %v", pair.Destination, err)
-	}
-
-	r.rules[ruleKey] = rule
-
 	return nil
 }
 
-func (r *router) removeNatRule(pair firewall.RouterPair) error {
-	ruleKey := firewall.GenKey(firewall.NatFormat, pair)
-
-	if rule, exists := r.rules[ruleKey]; exists {
-		if err := r.iptablesClient.DeleteIfExists(tableNat, chainRTNAT, rule...); err != nil {
-			return fmt.Errorf("error while removing existing nat rule for %s: %v", pair.Destination, err)
-		}
-
-		delete(r.rules, ruleKey)
-	} else {
-		log.Debugf("nat rule %s not found", ruleKey)
-	}
-
-	return nil
-}
-
-func genRuleSpec(jump string, source, destination netip.Prefix, intf string, inverse bool) []string {
-	intdir := "-i"
-	if inverse {
-		intdir = "-o"
-	}
-	return []string{intdir, intf, "-s", source.String(), "-d", destination.String(), "-j", jump}
-}
-
-func genRouteFilteringRuleSpec(params routeFilteringRuleParams) []string {
-	var rule []string
-
-	if params.SetName != "" {
-		rule = append(rule, "-m", "set", matchSet, params.SetName, "src")
-	} else if len(params.Sources) > 0 {
-		source := params.Sources[0]
-		rule = append(rule, "-s", source.String())
-	}
-
-	rule = append(rule, "-d", params.Destination.String())
-
-	if params.Proto != firewall.ProtocolALL {
-		rule = append(rule, "-p", strings.ToLower(string(params.Proto)))
-		rule = append(rule, applyPort("--sport", params.SPort)...)
-		rule = append(rule, applyPort("--dport", params.DPort)...)
-	}
-
-	rule = append(rule, "-j", actionToStr(params.Action))
-
-	return rule
-}
-
-func applyPort(flag string, port *firewall.Port) []string {
-	if port == nil {
+func (i *routerManager) createContainers() error {
+	if i.rules[Ipv4Forwarding] != nil {
 		return nil
 	}
 
-	if port.IsRange && len(port.Values) == 2 {
-		return []string{flag, fmt.Sprintf("%d:%d", port.Values[0], port.Values[1])}
+	errMSGFormat := "failed creating chain %s,error: %v"
+	err := i.createChain(tableFilter, chainRTFWD)
+	if err != nil {
+		return fmt.Errorf(errMSGFormat, chainRTFWD, err)
 	}
 
-	if len(port.Values) > 1 {
-		portList := make([]string, len(port.Values))
-		for i, p := range port.Values {
-			portList[i] = strconv.Itoa(p)
-		}
-		return []string{"-m", "multiport", flag, strings.Join(portList, ",")}
+	err = i.createChain(tableNat, chainRTNAT)
+	if err != nil {
+		return fmt.Errorf(errMSGFormat, chainRTNAT, err)
 	}
 
-	return []string{flag, strconv.Itoa(port.Values[0])}
+	err = i.addJumpRules()
+	if err != nil {
+		return fmt.Errorf("error while creating jump rules: %v", err)
+	}
+
+	return nil
+}
+
+// addJumpRules create jump rules to send packets to NetBird chains
+func (i *routerManager) addJumpRules() error {
+	rule := []string{"-j", chainRTFWD}
+	err := i.iptablesClient.Insert(tableFilter, chainFORWARD, 1, rule...)
+	if err != nil {
+		return err
+	}
+	i.rules[Ipv4Forwarding] = rule
+
+	rule = []string{"-j", chainRTNAT}
+	err = i.iptablesClient.Insert(tableNat, chainPOSTROUTING, 1, rule...)
+	if err != nil {
+		return err
+	}
+	i.rules[ipv4Nat] = rule
+
+	return nil
+}
+
+// cleanJumpRules cleans jump rules that was sending packets to NetBird chains
+func (i *routerManager) cleanJumpRules() error {
+	var err error
+	errMSGFormat := "failed cleaning rule from chain %s,err: %v"
+	rule, found := i.rules[Ipv4Forwarding]
+	if found {
+		err = i.iptablesClient.DeleteIfExists(tableFilter, chainFORWARD, rule...)
+		if err != nil {
+			return fmt.Errorf(errMSGFormat, chainFORWARD, err)
+		}
+	}
+	rule, found = i.rules[ipv4Nat]
+	if found {
+		err = i.iptablesClient.DeleteIfExists(tableNat, chainPOSTROUTING, rule...)
+		if err != nil {
+			return fmt.Errorf(errMSGFormat, chainPOSTROUTING, err)
+		}
+	}
+
+	rules, err := i.iptablesClient.List("nat", "POSTROUTING")
+	if err != nil {
+		return fmt.Errorf("failed to list rules: %s", err)
+	}
+
+	for _, ruleString := range rules {
+		if !strings.Contains(ruleString, "NETBIRD") {
+			continue
+		}
+		rule := strings.Fields(ruleString)
+		err := i.iptablesClient.DeleteIfExists("nat", "POSTROUTING", rule[2:]...)
+		if err != nil {
+			return fmt.Errorf("failed to delete postrouting jump rule: %s", err)
+		}
+	}
+
+	rules, err = i.iptablesClient.List(tableFilter, "FORWARD")
+	if err != nil {
+		return fmt.Errorf("failed to list rules in FORWARD chain: %s", err)
+	}
+
+	for _, ruleString := range rules {
+		if !strings.Contains(ruleString, "NETBIRD") {
+			continue
+		}
+		rule := strings.Fields(ruleString)
+		err := i.iptablesClient.DeleteIfExists(tableFilter, "FORWARD", rule[2:]...)
+		if err != nil {
+			return fmt.Errorf("failed to delete FORWARD jump rule: %s", err)
+		}
+	}
+	return nil
+}
+
+func (i *routerManager) createChain(table, newChain string) error {
+	chains, err := i.iptablesClient.ListChains(table)
+	if err != nil {
+		return fmt.Errorf("couldn't get %s table chains, error: %v", table, err)
+	}
+
+	shouldCreateChain := true
+	for _, chain := range chains {
+		if chain == newChain {
+			shouldCreateChain = false
+		}
+	}
+
+	if shouldCreateChain {
+		err = i.iptablesClient.NewChain(table, newChain)
+		if err != nil {
+			return fmt.Errorf("couldn't create chain %s in %s table, error: %v", newChain, table, err)
+		}
+
+		// Add the loopback return rule to the NAT chain
+		loopbackRule := []string{"-o", "lo", "-j", "RETURN"}
+		err = i.iptablesClient.Insert(table, newChain, 1, loopbackRule...)
+		if err != nil {
+			return fmt.Errorf("failed to add loopback return rule to %s: %v", chainRTNAT, err)
+		}
+
+		err = i.iptablesClient.Append(table, newChain, "-j", "RETURN")
+		if err != nil {
+			return fmt.Errorf("couldn't create chain %s default rule, error: %v", newChain, err)
+		}
+
+	}
+	return nil
+}
+
+// addNATRule appends an iptables rule pair to the nat chain
+func (i *routerManager) addNATRule(keyFormat, table, chain, jump string, pair firewall.RouterPair) error {
+	ruleKey := firewall.GenKey(keyFormat, pair.ID)
+	rule := genRuleSpec(jump, pair.Source, pair.Destination)
+	existingRule, found := i.rules[ruleKey]
+	if found {
+		err := i.iptablesClient.DeleteIfExists(table, chain, existingRule...)
+		if err != nil {
+			return fmt.Errorf("error while removing existing NAT rule for %s: %v", pair.Destination, err)
+		}
+		delete(i.rules, ruleKey)
+	}
+
+	// inserting after loopback ignore rule
+	err := i.iptablesClient.Insert(table, chain, 2, rule...)
+	if err != nil {
+		return fmt.Errorf("error while appending new NAT rule for %s: %v", pair.Destination, err)
+	}
+
+	i.rules[ruleKey] = rule
+
+	return nil
+}
+
+// genRuleSpec generates rule specification
+func genRuleSpec(jump, source, destination string) []string {
+	return []string{"-s", source, "-d", destination, "-j", jump}
+}
+
+func getIptablesRuleType(table string) string {
+	ruleType := "forwarding"
+	if table == tableNat {
+		ruleType = "nat"
+	}
+	return ruleType
 }

client/firewall/iptables/router_linux_test.go

@@ -4,13 +4,11 @@ package iptables
 
 import (
 	"context"
-	"net/netip"
 	"os/exec"
 	"testing"
 
 	"github.com/coreos/go-iptables/iptables"
 	log "github.com/sirupsen/logrus"
-	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
 	firewall "github.com/netbirdio/netbird/client/firewall/manager"
@@ -30,7 +28,7 @@ func TestIptablesManager_RestoreOrCreateContainers(t *testing.T) {
 	iptablesClient, err := iptables.NewWithProtocol(iptables.ProtocolIPv4)
 	require.NoError(t, err, "failed to init iptables client")
 
-	manager, err := newRouter(context.TODO(), iptablesClient, ifaceMock)
+	manager, err := newRouterManager(context.TODO(), iptablesClient)
 	require.NoError(t, err, "should return a valid iptables manager")
 
 	defer func() {
@@ -39,22 +37,26 @@ func TestIptablesManager_RestoreOrCreateContainers(t *testing.T) {
 
 	require.Len(t, manager.rules, 2, "should have created rules map")
 
-	exists, err := manager.iptablesClient.Exists(tableNat, chainPOSTROUTING, manager.rules[ipv4Nat]...)
+	exists, err := manager.iptablesClient.Exists(tableFilter, chainFORWARD, manager.rules[Ipv4Forwarding]...)
+	require.NoError(t, err, "should be able to query the iptables %s table and %s chain", tableFilter, chainFORWARD)
+	require.True(t, exists, "forwarding rule should exist")
+
+	exists, err = manager.iptablesClient.Exists(tableNat, chainPOSTROUTING, manager.rules[ipv4Nat]...)
 	require.NoError(t, err, "should be able to query the iptables %s table and %s chain", tableNat, chainPOSTROUTING)
 	require.True(t, exists, "postrouting rule should exist")
 
 	pair := firewall.RouterPair{
 		ID:          "abc",
-		Source:      netip.MustParsePrefix("100.100.100.1/32"),
-		Destination: netip.MustParsePrefix("100.100.100.0/24"),
+		Source:      "100.100.100.1/32",
+		Destination: "100.100.100.0/24",
 		Masquerade:  true,
 	}
-	forward4Rule := []string{"-s", pair.Source.String(), "-d", pair.Destination.String(), "-j", routingFinalForwardJump}
+	forward4Rule := genRuleSpec(routingFinalForwardJump, pair.Source, pair.Destination)
 
 	err = manager.iptablesClient.Insert(tableFilter, chainRTFWD, 1, forward4Rule...)
 	require.NoError(t, err, "inserting rule should not return error")
 
-	nat4Rule := genRuleSpec(routingFinalNatJump, pair.Source, pair.Destination, ifaceMock.Name(), false)
+	nat4Rule := genRuleSpec(routingFinalNatJump, pair.Source, pair.Destination)
 
 	err = manager.iptablesClient.Insert(tableNat, chainRTNAT, 1, nat4Rule...)
 	require.NoError(t, err, "inserting rule should not return error")
@@ -63,7 +65,7 @@ func TestIptablesManager_RestoreOrCreateContainers(t *testing.T) {
 	require.NoError(t, err, "shouldn't return error")
 }
 
-func TestIptablesManager_AddNatRule(t *testing.T) {
+func TestIptablesManager_InsertRoutingRules(t *testing.T) {
 
 	if !isIptablesSupported() {
 		t.SkipNow()
@@ -74,7 +76,7 @@ func TestIptablesManager_AddNatRule(t *testing.T) {
 			iptablesClient, err := iptables.NewWithProtocol(iptables.ProtocolIPv4)
 			require.NoError(t, err, "failed to init iptables client")
 
-			manager, err := newRouter(context.TODO(), iptablesClient, ifaceMock)
+			manager, err := newRouterManager(context.TODO(), iptablesClient)
 			require.NoError(t, err, "shouldn't return error")
 
 			defer func() {
@@ -84,13 +86,35 @@ func TestIptablesManager_AddNatRule(t *testing.T) {
 				}
 			}()
 
-			err = manager.AddNatRule(testCase.InputPair)
+			err = manager.InsertRoutingRules(testCase.InputPair)
 			require.NoError(t, err, "forwarding pair should be inserted")
 
-			natRuleKey := firewall.GenKey(firewall.NatFormat, testCase.InputPair)
-			natRule := genRuleSpec(routingFinalNatJump, testCase.InputPair.Source, testCase.InputPair.Destination, ifaceMock.Name(), false)
+			forwardRuleKey := firewall.GenKey(firewall.ForwardingFormat, testCase.InputPair.ID)
+			forwardRule := genRuleSpec(routingFinalForwardJump, testCase.InputPair.Source, testCase.InputPair.Destination)
 
-			exists, err := iptablesClient.Exists(tableNat, chainRTNAT, natRule...)
+			exists, err := iptablesClient.Exists(tableFilter, chainRTFWD, forwardRule...)
+			require.NoError(t, err, "should be able to query the iptables %s table and %s chain", tableFilter, chainRTFWD)
+			require.True(t, exists, "forwarding rule should exist")
+
+			foundRule, found := manager.rules[forwardRuleKey]
+			require.True(t, found, "forwarding rule should exist in the manager map")
+			require.Equal(t, forwardRule[:4], foundRule[:4], "stored forwarding rule should match")
+
+			inForwardRuleKey := firewall.GenKey(firewall.InForwardingFormat, testCase.InputPair.ID)
+			inForwardRule := genRuleSpec(routingFinalForwardJump, firewall.GetInPair(testCase.InputPair).Source, firewall.GetInPair(testCase.InputPair).Destination)
+
+			exists, err = iptablesClient.Exists(tableFilter, chainRTFWD, inForwardRule...)
+			require.NoError(t, err, "should be able to query the iptables %s table and %s chain", tableFilter, chainRTFWD)
+			require.True(t, exists, "income forwarding rule should exist")
+
+			foundRule, found = manager.rules[inForwardRuleKey]
+			require.True(t, found, "income forwarding rule should exist in the manager map")
+			require.Equal(t, inForwardRule[:4], foundRule[:4], "stored income forwarding rule should match")
+
+			natRuleKey := firewall.GenKey(firewall.NatFormat, testCase.InputPair.ID)
+			natRule := genRuleSpec(routingFinalNatJump, testCase.InputPair.Source, testCase.InputPair.Destination)
+
+			exists, err = iptablesClient.Exists(tableNat, chainRTNAT, natRule...)
 			require.NoError(t, err, "should be able to query the iptables %s table and %s chain", tableNat, chainRTNAT)
 			if testCase.InputPair.Masquerade {
 				require.True(t, exists, "nat rule should be created")
@@ -103,8 +127,8 @@ func TestIptablesManager_AddNatRule(t *testing.T) {
 				require.False(t, foundNat, "nat rule should not exist in the map")
 			}
 
-			inNatRuleKey := firewall.GenKey(firewall.NatFormat, firewall.GetInversePair(testCase.InputPair))
-			inNatRule := genRuleSpec(routingFinalNatJump, firewall.GetInversePair(testCase.InputPair).Source, firewall.GetInversePair(testCase.InputPair).Destination, ifaceMock.Name(), true)
+			inNatRuleKey := firewall.GenKey(firewall.InNatFormat, testCase.InputPair.ID)
+			inNatRule := genRuleSpec(routingFinalNatJump, firewall.GetInPair(testCase.InputPair).Source, firewall.GetInPair(testCase.InputPair).Destination)
 
 			exists, err = iptablesClient.Exists(tableNat, chainRTNAT, inNatRule...)
 			require.NoError(t, err, "should be able to query the iptables %s table and %s chain", tableNat, chainRTNAT)
@@ -122,7 +146,7 @@ func TestIptablesManager_AddNatRule(t *testing.T) {
 	}
 }
 
-func TestIptablesManager_RemoveNatRule(t *testing.T) {
+func TestIptablesManager_RemoveRoutingRules(t *testing.T) {
 
 	if !isIptablesSupported() {
 		t.SkipNow()
@@ -132,7 +156,7 @@ func TestIptablesManager_RemoveNatRule(t *testing.T) {
 		t.Run(testCase.Name, func(t *testing.T) {
 			iptablesClient, _ := iptables.NewWithProtocol(iptables.ProtocolIPv4)
 
-			manager, err := newRouter(context.TODO(), iptablesClient, ifaceMock)
+			manager, err := newRouterManager(context.TODO(), iptablesClient)
 			require.NoError(t, err, "shouldn't return error")
 			defer func() {
 				_ = manager.Reset()
@@ -140,14 +164,26 @@ func TestIptablesManager_RemoveNatRule(t *testing.T) {
 
 			require.NoError(t, err, "shouldn't return error")
 
-			natRuleKey := firewall.GenKey(firewall.NatFormat, testCase.InputPair)
-			natRule := genRuleSpec(routingFinalNatJump, testCase.InputPair.Source, testCase.InputPair.Destination, ifaceMock.Name(), false)
+			forwardRuleKey := firewall.GenKey(firewall.ForwardingFormat, testCase.InputPair.ID)
+			forwardRule := genRuleSpec(routingFinalForwardJump, testCase.InputPair.Source, testCase.InputPair.Destination)
+
+			err = iptablesClient.Insert(tableFilter, chainRTFWD, 1, forwardRule...)
+			require.NoError(t, err, "inserting rule should not return error")
+
+			inForwardRuleKey := firewall.GenKey(firewall.InForwardingFormat, testCase.InputPair.ID)
+			inForwardRule := genRuleSpec(routingFinalForwardJump, firewall.GetInPair(testCase.InputPair).Source, firewall.GetInPair(testCase.InputPair).Destination)
+
+			err = iptablesClient.Insert(tableFilter, chainRTFWD, 1, inForwardRule...)
+			require.NoError(t, err, "inserting rule should not return error")
+
+			natRuleKey := firewall.GenKey(firewall.NatFormat, testCase.InputPair.ID)
+			natRule := genRuleSpec(routingFinalNatJump, testCase.InputPair.Source, testCase.InputPair.Destination)
 
 			err = iptablesClient.Insert(tableNat, chainRTNAT, 1, natRule...)
 			require.NoError(t, err, "inserting rule should not return error")
 
-			inNatRuleKey := firewall.GenKey(firewall.NatFormat, firewall.GetInversePair(testCase.InputPair))
-			inNatRule := genRuleSpec(routingFinalNatJump, firewall.GetInversePair(testCase.InputPair).Source, firewall.GetInversePair(testCase.InputPair).Destination, ifaceMock.Name(), true)
+			inNatRuleKey := firewall.GenKey(firewall.InNatFormat, testCase.InputPair.ID)
+			inNatRule := genRuleSpec(routingFinalNatJump, firewall.GetInPair(testCase.InputPair).Source, firewall.GetInPair(testCase.InputPair).Destination)
 
 			err = iptablesClient.Insert(tableNat, chainRTNAT, 1, inNatRule...)
 			require.NoError(t, err, "inserting rule should not return error")
@@ -155,14 +191,28 @@ func TestIptablesManager_RemoveNatRule(t *testing.T) {
 			err = manager.Reset()
 			require.NoError(t, err, "shouldn't return error")
 
-			err = manager.RemoveNatRule(testCase.InputPair)
+			err = manager.RemoveRoutingRules(testCase.InputPair)
 			require.NoError(t, err, "shouldn't return error")
 
-			exists, err := iptablesClient.Exists(tableNat, chainRTNAT, natRule...)
+			exists, err := iptablesClient.Exists(tableFilter, chainRTFWD, forwardRule...)
+			require.NoError(t, err, "should be able to query the iptables %s table and %s chain", tableFilter, chainRTFWD)
+			require.False(t, exists, "forwarding rule should not exist")
+
+			_, found := manager.rules[forwardRuleKey]
+			require.False(t, found, "forwarding rule should exist in the manager map")
+
+			exists, err = iptablesClient.Exists(tableFilter, chainRTFWD, inForwardRule...)
+			require.NoError(t, err, "should be able to query the iptables %s table and %s chain", tableFilter, chainRTFWD)
+			require.False(t, exists, "income forwarding rule should not exist")
+
+			_, found = manager.rules[inForwardRuleKey]
+			require.False(t, found, "income forwarding rule should exist in the manager map")
+
+			exists, err = iptablesClient.Exists(tableNat, chainRTNAT, natRule...)
 			require.NoError(t, err, "should be able to query the iptables %s table and %s chain", tableNat, chainRTNAT)
 			require.False(t, exists, "nat rule should not exist")
 
-			_, found := manager.rules[natRuleKey]
+			_, found = manager.rules[natRuleKey]
 			require.False(t, found, "nat rule should exist in the manager map")
 
 			exists, err = iptablesClient.Exists(tableNat, chainRTNAT, inNatRule...)
@@ -171,175 +221,7 @@ func TestIptablesManager_RemoveNatRule(t *testing.T) {
 
 			_, found = manager.rules[inNatRuleKey]
 			require.False(t, found, "income nat rule should exist in the manager map")
-		})
-	}
-}
-
-func TestRouter_AddRouteFiltering(t *testing.T) {
-	if !isIptablesSupported() {
-		t.Skip("iptables not supported on this system")
-	}
-
-	iptablesClient, err := iptables.NewWithProtocol(iptables.ProtocolIPv4)
-	require.NoError(t, err, "Failed to create iptables client")
-
-	r, err := newRouter(context.Background(), iptablesClient, ifaceMock)
-	require.NoError(t, err, "Failed to create router manager")
-
-	defer func() {
-		err := r.Reset()
-		require.NoError(t, err, "Failed to reset router")
-	}()
-
-	tests := []struct {
-		name        string
-		sources     []netip.Prefix
-		destination netip.Prefix
-		proto       firewall.Protocol
-		sPort       *firewall.Port
-		dPort       *firewall.Port
-		direction   firewall.RuleDirection
-		action      firewall.Action
-		expectSet   bool
-	}{
-		{
-			name:        "Basic TCP rule with single source",
-			sources:     []netip.Prefix{netip.MustParsePrefix("192.168.1.0/24")},
-			destination: netip.MustParsePrefix("10.0.0.0/24"),
-			proto:       firewall.ProtocolTCP,
-			sPort:       nil,
-			dPort:       &firewall.Port{Values: []int{80}},
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name: "UDP rule with multiple sources",
-			sources: []netip.Prefix{
-				netip.MustParsePrefix("172.16.0.0/16"),
-				netip.MustParsePrefix("192.168.0.0/16"),
-			},
-			destination: netip.MustParsePrefix("10.0.0.0/8"),
-			proto:       firewall.ProtocolUDP,
-			sPort:       &firewall.Port{Values: []int{1024, 2048}, IsRange: true},
-			dPort:       nil,
-			direction:   firewall.RuleDirectionOUT,
-			action:      firewall.ActionDrop,
-			expectSet:   true,
-		},
-		{
-			name:        "All protocols rule",
-			sources:     []netip.Prefix{netip.MustParsePrefix("10.0.0.0/8")},
-			destination: netip.MustParsePrefix("0.0.0.0/0"),
-			proto:       firewall.ProtocolALL,
-			sPort:       nil,
-			dPort:       nil,
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name:        "ICMP rule",
-			sources:     []netip.Prefix{netip.MustParsePrefix("192.168.0.0/16")},
-			destination: netip.MustParsePrefix("10.0.0.0/8"),
-			proto:       firewall.ProtocolICMP,
-			sPort:       nil,
-			dPort:       nil,
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name:        "TCP rule with multiple source ports",
-			sources:     []netip.Prefix{netip.MustParsePrefix("172.16.0.0/12")},
-			destination: netip.MustParsePrefix("192.168.0.0/16"),
-			proto:       firewall.ProtocolTCP,
-			sPort:       &firewall.Port{Values: []int{80, 443, 8080}},
-			dPort:       nil,
-			direction:   firewall.RuleDirectionOUT,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name:        "UDP rule with single IP and port range",
-			sources:     []netip.Prefix{netip.MustParsePrefix("192.168.1.1/32")},
-			destination: netip.MustParsePrefix("10.0.0.0/24"),
-			proto:       firewall.ProtocolUDP,
-			sPort:       nil,
-			dPort:       &firewall.Port{Values: []int{5000, 5100}, IsRange: true},
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionDrop,
-			expectSet:   false,
-		},
-		{
-			name:        "TCP rule with source and destination ports",
-			sources:     []netip.Prefix{netip.MustParsePrefix("10.0.0.0/24")},
-			destination: netip.MustParsePrefix("172.16.0.0/16"),
-			proto:       firewall.ProtocolTCP,
-			sPort:       &firewall.Port{Values: []int{1024, 65535}, IsRange: true},
-			dPort:       &firewall.Port{Values: []int{22}},
-			direction:   firewall.RuleDirectionOUT,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name:        "Drop all incoming traffic",
-			sources:     []netip.Prefix{netip.MustParsePrefix("0.0.0.0/0")},
-			destination: netip.MustParsePrefix("192.168.0.0/24"),
-			proto:       firewall.ProtocolALL,
-			sPort:       nil,
-			dPort:       nil,
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionDrop,
-			expectSet:   false,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			ruleKey, err := r.AddRouteFiltering(tt.sources, tt.destination, tt.proto, tt.sPort, tt.dPort, tt.action)
-			require.NoError(t, err, "AddRouteFiltering failed")
-
-			// Check if the rule is in the internal map
-			rule, ok := r.rules[ruleKey.GetRuleID()]
-			assert.True(t, ok, "Rule not found in internal map")
-
-			// Log the internal rule
-			t.Logf("Internal rule: %v", rule)
-
-			// Check if the rule exists in iptables
-			exists, err := iptablesClient.Exists(tableFilter, chainRTFWD, rule...)
-			assert.NoError(t, err, "Failed to check rule existence")
-			assert.True(t, exists, "Rule not found in iptables")
-
-			// Verify rule content
-			params := routeFilteringRuleParams{
-				Sources:     tt.sources,
-				Destination: tt.destination,
-				Proto:       tt.proto,
-				SPort:       tt.sPort,
-				DPort:       tt.dPort,
-				Action:      tt.action,
-				SetName:     "",
-			}
-
-			expectedRule := genRouteFilteringRuleSpec(params)
-
-			if tt.expectSet {
-				setName := firewall.GenerateSetName(tt.sources)
-				params.SetName = setName
-				expectedRule = genRouteFilteringRuleSpec(params)
-
-				// Check if the set was created
-				_, exists := r.ipsetCounter.Get(setName)
-				assert.True(t, exists, "IPSet not created")
-			}
-
-			assert.Equal(t, expectedRule, rule, "Rule content mismatch")
-
-			// Clean up
-			err = r.DeleteRouteRule(ruleKey)
-			require.NoError(t, err, "Failed to delete rule")
+
 		})
 	}
 }

client/firewall/manager/firewall.go

@@ -1,21 +1,15 @@
 package manager
 
 import (
-	"crypto/sha256"
-	"encoding/hex"
 	"fmt"
 	"net"
-	"net/netip"
-	"sort"
-	"strings"
-
-	log "github.com/sirupsen/logrus"
 )
 
 const (
-	ForwardingFormatPrefix = "netbird-fwd-"
-	ForwardingFormat       = "netbird-fwd-%s-%t"
-	NatFormat              = "netbird-nat-%s-%t"
+	NatFormat          = "netbird-nat-%s"
+	ForwardingFormat   = "netbird-fwd-%s"
+	InNatFormat        = "netbird-nat-in-%s"
+	InForwardingFormat = "netbird-fwd-in-%s"
 )
 
 // Rule abstraction should be implemented by each firewall manager
@@ -55,11 +49,11 @@ type Manager interface {
 	// AllowNetbird allows netbird interface traffic
 	AllowNetbird() error
 
-	// AddPeerFiltering adds a rule to the firewall
+	// AddFiltering rule to the firewall
 	//
 	// If comment argument is empty firewall manager should set
 	// rule ID as comment for the rule
-	AddPeerFiltering(
+	AddFiltering(
 		ip net.IP,
 		proto Protocol,
 		sPort *Port,
@@ -70,25 +64,17 @@ type Manager interface {
 		comment string,
 	) ([]Rule, error)
 
-	// DeletePeerRule from the firewall by rule definition
-	DeletePeerRule(rule Rule) error
+	// DeleteRule from the firewall by rule definition
+	DeleteRule(rule Rule) error
 
 	// IsServerRouteSupported returns true if the firewall supports server side routing operations
 	IsServerRouteSupported() bool
 
-	AddRouteFiltering(source []netip.Prefix, destination netip.Prefix, proto Protocol, sPort *Port, dPort *Port, action Action) (Rule, error)
+	// InsertRoutingRules inserts a routing firewall rule
+	InsertRoutingRules(pair RouterPair) error
 
-	// DeleteRouteRule deletes a routing rule
-	DeleteRouteRule(rule Rule) error
-
-	// AddNatRule inserts a routing NAT rule
-	AddNatRule(pair RouterPair) error
-
-	// RemoveNatRule removes a routing NAT rule
-	RemoveNatRule(pair RouterPair) error
-
-	// SetLegacyManagement sets the legacy management mode
-	SetLegacyManagement(legacy bool) error
+	// RemoveRoutingRules removes a routing firewall rule
+	RemoveRoutingRules(pair RouterPair) error
 
 	// Reset firewall to the default state
 	Reset() error
@@ -97,89 +83,6 @@ type Manager interface {
 	Flush() error
 }
 
-func GenKey(format string, pair RouterPair) string {
-	return fmt.Sprintf(format, pair.ID, pair.Inverse)
-}
-
-// LegacyManager defines the interface for legacy management operations
-type LegacyManager interface {
-	RemoveAllLegacyRouteRules() error
-	GetLegacyManagement() bool
-	SetLegacyManagement(bool)
-}
-
-// SetLegacyManagement sets the route manager to use legacy management
-func SetLegacyManagement(router LegacyManager, isLegacy bool) error {
-	oldLegacy := router.GetLegacyManagement()
-
-	if oldLegacy != isLegacy {
-		router.SetLegacyManagement(isLegacy)
-		log.Debugf("Set legacy management to %v", isLegacy)
-	}
-
-	// client reconnected to a newer mgmt, we need to clean up the legacy rules
-	if !isLegacy && oldLegacy {
-		if err := router.RemoveAllLegacyRouteRules(); err != nil {
-			return fmt.Errorf("remove legacy routing rules: %v", err)
-		}
-
-		log.Debugf("Legacy routing rules removed")
-	}
-
-	return nil
-}
-
-// GenerateSetName generates a unique name for an ipset based on the given sources.
-func GenerateSetName(sources []netip.Prefix) string {
-	// sort for consistent naming
-	sortPrefixes(sources)
-
-	var sourcesStr strings.Builder
-	for _, src := range sources {
-		sourcesStr.WriteString(src.String())
-	}
-
-	hash := sha256.Sum256([]byte(sourcesStr.String()))
-	shortHash := hex.EncodeToString(hash[:])[:8]
-
-	return fmt.Sprintf("nb-%s", shortHash)
-}
-
-// MergeIPRanges merges overlapping IP ranges and returns a slice of non-overlapping netip.Prefix
-func MergeIPRanges(prefixes []netip.Prefix) []netip.Prefix {
-	if len(prefixes) == 0 {
-		return prefixes
-	}
-
-	merged := []netip.Prefix{prefixes[0]}
-	for _, prefix := range prefixes[1:] {
-		last := merged[len(merged)-1]
-		if last.Contains(prefix.Addr()) {
-			// If the current prefix is contained within the last merged prefix, skip it
-			continue
-		}
-		if prefix.Contains(last.Addr()) {
-			// If the current prefix contains the last merged prefix, replace it
-			merged[len(merged)-1] = prefix
-		} else {
-			// Otherwise, add the current prefix to the merged list
-			merged = append(merged, prefix)
-		}
-	}
-
-	return merged
-}
-
-// sortPrefixes sorts the given slice of netip.Prefix in place.
-// It sorts first by IP address, then by prefix length (most specific to least specific).
-func sortPrefixes(prefixes []netip.Prefix) {
-	sort.Slice(prefixes, func(i, j int) bool {
-		addrCmp := prefixes[i].Addr().Compare(prefixes[j].Addr())
-		if addrCmp != 0 {
-			return addrCmp < 0
-		}
-
-		// If IP addresses are the same, compare prefix lengths (longer prefixes first)
-		return prefixes[i].Bits() > prefixes[j].Bits()
-	})
+func GenKey(format string, input string) string {
+	return fmt.Sprintf(format, input)
 }

client/firewall/manager/firewall_test.go

@@ -1,192 +0,0 @@
-package manager_test
-
-import (
-	"net/netip"
-	"reflect"
-	"regexp"
-	"testing"
-
-	"github.com/netbirdio/netbird/client/firewall/manager"
-)
-
-func TestGenerateSetName(t *testing.T) {
-	t.Run("Different orders result in same hash", func(t *testing.T) {
-		prefixes1 := []netip.Prefix{
-			netip.MustParsePrefix("192.168.1.0/24"),
-			netip.MustParsePrefix("10.0.0.0/8"),
-		}
-		prefixes2 := []netip.Prefix{
-			netip.MustParsePrefix("10.0.0.0/8"),
-			netip.MustParsePrefix("192.168.1.0/24"),
-		}
-
-		result1 := manager.GenerateSetName(prefixes1)
-		result2 := manager.GenerateSetName(prefixes2)
-
-		if result1 != result2 {
-			t.Errorf("Different orders produced different hashes: %s != %s", result1, result2)
-		}
-	})
-
-	t.Run("Result format is correct", func(t *testing.T) {
-		prefixes := []netip.Prefix{
-			netip.MustParsePrefix("192.168.1.0/24"),
-			netip.MustParsePrefix("10.0.0.0/8"),
-		}
-
-		result := manager.GenerateSetName(prefixes)
-
-		matched, err := regexp.MatchString(`^nb-[0-9a-f]{8}$`, result)
-		if err != nil {
-			t.Fatalf("Error matching regex: %v", err)
-		}
-		if !matched {
-			t.Errorf("Result format is incorrect: %s", result)
-		}
-	})
-
-	t.Run("Empty input produces consistent result", func(t *testing.T) {
-		result1 := manager.GenerateSetName([]netip.Prefix{})
-		result2 := manager.GenerateSetName([]netip.Prefix{})
-
-		if result1 != result2 {
-			t.Errorf("Empty input produced inconsistent results: %s != %s", result1, result2)
-		}
-	})
-
-	t.Run("IPv4 and IPv6 mixing", func(t *testing.T) {
-		prefixes1 := []netip.Prefix{
-			netip.MustParsePrefix("192.168.1.0/24"),
-			netip.MustParsePrefix("2001:db8::/32"),
-		}
-		prefixes2 := []netip.Prefix{
-			netip.MustParsePrefix("2001:db8::/32"),
-			netip.MustParsePrefix("192.168.1.0/24"),
-		}
-
-		result1 := manager.GenerateSetName(prefixes1)
-		result2 := manager.GenerateSetName(prefixes2)
-
-		if result1 != result2 {
-			t.Errorf("Different orders of IPv4 and IPv6 produced different hashes: %s != %s", result1, result2)
-		}
-	})
-}
-
-func TestMergeIPRanges(t *testing.T) {
-	tests := []struct {
-		name     string
-		input    []netip.Prefix
-		expected []netip.Prefix
-	}{
-		{
-			name:     "Empty input",
-			input:    []netip.Prefix{},
-			expected: []netip.Prefix{},
-		},
-		{
-			name: "Single range",
-			input: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.0/24"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.0/24"),
-			},
-		},
-		{
-			name: "Two non-overlapping ranges",
-			input: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.0/24"),
-				netip.MustParsePrefix("10.0.0.0/8"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.0/24"),
-				netip.MustParsePrefix("10.0.0.0/8"),
-			},
-		},
-		{
-			name: "One range containing another",
-			input: []netip.Prefix{
-				netip.MustParsePrefix("192.168.0.0/16"),
-				netip.MustParsePrefix("192.168.1.0/24"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("192.168.0.0/16"),
-			},
-		},
-		{
-			name: "One range containing another (different order)",
-			input: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.0/24"),
-				netip.MustParsePrefix("192.168.0.0/16"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("192.168.0.0/16"),
-			},
-		},
-		{
-			name: "Overlapping ranges",
-			input: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.0/24"),
-				netip.MustParsePrefix("192.168.1.128/25"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.0/24"),
-			},
-		},
-		{
-			name: "Overlapping ranges (different order)",
-			input: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.128/25"),
-				netip.MustParsePrefix("192.168.1.0/24"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.0/24"),
-			},
-		},
-		{
-			name: "Multiple overlapping ranges",
-			input: []netip.Prefix{
-				netip.MustParsePrefix("192.168.0.0/16"),
-				netip.MustParsePrefix("192.168.1.0/24"),
-				netip.MustParsePrefix("192.168.2.0/24"),
-				netip.MustParsePrefix("192.168.1.128/25"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("192.168.0.0/16"),
-			},
-		},
-		{
-			name: "Partially overlapping ranges",
-			input: []netip.Prefix{
-				netip.MustParsePrefix("192.168.0.0/23"),
-				netip.MustParsePrefix("192.168.1.0/24"),
-				netip.MustParsePrefix("192.168.2.0/25"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("192.168.0.0/23"),
-				netip.MustParsePrefix("192.168.2.0/25"),
-			},
-		},
-		{
-			name: "IPv6 ranges",
-			input: []netip.Prefix{
-				netip.MustParsePrefix("2001:db8::/32"),
-				netip.MustParsePrefix("2001:db8:1::/48"),
-				netip.MustParsePrefix("2001:db8:2::/48"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("2001:db8::/32"),
-			},
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := manager.MergeIPRanges(tt.input)
-			if !reflect.DeepEqual(result, tt.expected) {
-				t.Errorf("MergeIPRanges() = %v, want %v", result, tt.expected)
-			}
-		})
-	}
-}

client/firewall/manager/routerpair.go

@@ -1,26 +1,18 @@
 package manager
 
-import (
-	"net/netip"
-
-	"github.com/netbirdio/netbird/route"
-)
-
 type RouterPair struct {
-	ID          route.ID
-	Source      netip.Prefix
-	Destination netip.Prefix
+	ID          string
+	Source      string
+	Destination string
 	Masquerade  bool
-	Inverse     bool
 }
 
-func GetInversePair(pair RouterPair) RouterPair {
+func GetInPair(pair RouterPair) RouterPair {
 	return RouterPair{
 		ID: pair.ID,
 		// invert Source/Destination
 		Source:      pair.Destination,
 		Destination: pair.Source,
 		Masquerade:  pair.Masquerade,
-		Inverse:     true,
 	}
 }

client/firewall/nftables/acl_linux.go

@@ -16,7 +16,7 @@ import (
 	"golang.org/x/sys/unix"
 
 	firewall "github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/iface"
+	"github.com/netbirdio/netbird/iface"
 )
 
 const (
@@ -33,10 +33,9 @@ const (
 	allowNetbirdInputRuleID = "allow Netbird incoming traffic"
 )
 
-const flushError = "flush: %w"
-
 var (
-	anyIP = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+	anyIP           = []byte{0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0}
+	postroutingMark = []byte{0xe4, 0x7, 0x0, 0x00}
 )
 
 type AclManager struct {
@@ -49,6 +48,7 @@ type AclManager struct {
 	chainInputRules  *nftables.Chain
 	chainOutputRules *nftables.Chain
 	chainFwFilter    *nftables.Chain
+	chainPrerouting  *nftables.Chain
 
 	ipsetStore *ipsetStore
 	rules      map[string]*Rule
@@ -64,7 +64,7 @@ type iFaceMapper interface {
 func newAclManager(table *nftables.Table, wgIface iFaceMapper, routeingFwChainName string) (*AclManager, error) {
 	// sConn is used for creating sets and adding/removing elements from them
 	// it's differ then rConn (which does create new conn for each flush operation)
-	// and is permanent. Using same connection for both type of operations
+	// and is permanent. Using same connection for booth type of operations
 	// overloads netlink with high amount of rules ( > 10000)
 	sConn, err := nftables.New(nftables.AsLasting())
 	if err != nil {
@@ -90,11 +90,11 @@ func newAclManager(table *nftables.Table, wgIface iFaceMapper, routeingFwChainNa
 	return m, nil
 }
 
-// AddPeerFiltering rule to the firewall
+// AddFiltering rule to the firewall
 //
 // If comment argument is empty firewall manager should set
 // rule ID as comment for the rule
-func (m *AclManager) AddPeerFiltering(
+func (m *AclManager) AddFiltering(
 	ip net.IP,
 	proto firewall.Protocol,
 	sPort *firewall.Port,
@@ -120,11 +120,20 @@ func (m *AclManager) AddPeerFiltering(
 	}
 
 	newRules = append(newRules, ioRule)
+	if !shouldAddToPrerouting(proto, dPort, direction) {
+		return newRules, nil
+	}
+
+	preroutingRule, err := m.addPreroutingFiltering(ipset, proto, dPort, ip)
+	if err != nil {
+		return newRules, err
+	}
+	newRules = append(newRules, preroutingRule)
 	return newRules, nil
 }
 
-// DeletePeerRule from the firewall by rule definition
-func (m *AclManager) DeletePeerRule(rule firewall.Rule) error {
+// DeleteRule from the firewall by rule definition
+func (m *AclManager) DeleteRule(rule firewall.Rule) error {
 	r, ok := rule.(*Rule)
 	if !ok {
 		return fmt.Errorf("invalid rule type")
@@ -190,7 +199,8 @@ func (m *AclManager) DeletePeerRule(rule firewall.Rule) error {
 	return nil
 }
 
-// createDefaultAllowRules creates default allow rules for the input and output chains
+// createDefaultAllowRules In case if the USP firewall manager can use the native firewall manager we must to create allow rules for
+// input and output chains
 func (m *AclManager) createDefaultAllowRules() error {
 	expIn := []expr.Any{
 		&expr.Payload{
@@ -204,13 +214,13 @@ func (m *AclManager) createDefaultAllowRules() error {
 			SourceRegister: 1,
 			DestRegister:   1,
 			Len:            4,
-			Mask:           []byte{0, 0, 0, 0},
-			Xor:            []byte{0, 0, 0, 0},
+			Mask:           []byte{0x00, 0x00, 0x00, 0x00},
+			Xor:            zeroXor,
 		},
 		// net address
 		&expr.Cmp{
 			Register: 1,
-			Data:     []byte{0, 0, 0, 0},
+			Data:     []byte{0x00, 0x00, 0x00, 0x00},
 		},
 		&expr.Verdict{
 			Kind: expr.VerdictAccept,
@@ -236,13 +246,13 @@ func (m *AclManager) createDefaultAllowRules() error {
 			SourceRegister: 1,
 			DestRegister:   1,
 			Len:            4,
-			Mask:           []byte{0, 0, 0, 0},
-			Xor:            []byte{0, 0, 0, 0},
+			Mask:           []byte{0x00, 0x00, 0x00, 0x00},
+			Xor:            zeroXor,
 		},
 		// net address
 		&expr.Cmp{
 			Register: 1,
-			Data:     []byte{0, 0, 0, 0},
+			Data:     []byte{0x00, 0x00, 0x00, 0x00},
 		},
 		&expr.Verdict{
 			Kind: expr.VerdictAccept,
@@ -256,8 +266,10 @@ func (m *AclManager) createDefaultAllowRules() error {
 		Exprs:    expOut,
 	})
 
-	if err := m.rConn.Flush(); err != nil {
-		return fmt.Errorf(flushError, err)
+	err := m.rConn.Flush()
+	if err != nil {
+		log.Debugf("failed to create default allow rules: %s", err)
+		return err
 	}
 	return nil
 }
@@ -278,11 +290,15 @@ func (m *AclManager) Flush() error {
 		log.Errorf("failed to refresh rule handles IPv4 output chain: %v", err)
 	}
 
+	if err := m.refreshRuleHandles(m.chainPrerouting); err != nil {
+		log.Errorf("failed to refresh rule handles IPv4 prerouting chain: %v", err)
+	}
+
 	return nil
 }
 
 func (m *AclManager) addIOFiltering(ip net.IP, proto firewall.Protocol, sPort *firewall.Port, dPort *firewall.Port, direction firewall.RuleDirection, action firewall.Action, ipset *nftables.Set, comment string) (*Rule, error) {
-	ruleId := generatePeerRuleId(ip, sPort, dPort, direction, action, ipset)
+	ruleId := generateRuleId(ip, sPort, dPort, direction, action, ipset)
 	if r, ok := m.rules[ruleId]; ok {
 		return &Rule{
 			r.nftRule,
@@ -292,7 +308,18 @@ func (m *AclManager) addIOFiltering(ip net.IP, proto firewall.Protocol, sPort *f
 		}, nil
 	}
 
-	var expressions []expr.Any
+	ifaceKey := expr.MetaKeyIIFNAME
+	if direction == firewall.RuleDirectionOUT {
+		ifaceKey = expr.MetaKeyOIFNAME
+	}
+	expressions := []expr.Any{
+		&expr.Meta{Key: ifaceKey, Register: 1},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 1,
+			Data:     ifname(m.wgIface.Name()),
+		},
+	}
 
 	if proto != firewall.ProtocolALL {
 		expressions = append(expressions, &expr.Payload{
@@ -302,15 +329,21 @@ func (m *AclManager) addIOFiltering(ip net.IP, proto firewall.Protocol, sPort *f
 			Len:          uint32(1),
 		})
 
-		protoData, err := protoToInt(proto)
-		if err != nil {
-			return nil, fmt.Errorf("convert protocol to number: %v", err)
+		var protoData []byte
+		switch proto {
+		case firewall.ProtocolTCP:
+			protoData = []byte{unix.IPPROTO_TCP}
+		case firewall.ProtocolUDP:
+			protoData = []byte{unix.IPPROTO_UDP}
+		case firewall.ProtocolICMP:
+			protoData = []byte{unix.IPPROTO_ICMP}
+		default:
+			return nil, fmt.Errorf("unsupported protocol: %s", proto)
 		}
-
 		expressions = append(expressions, &expr.Cmp{
 			Register: 1,
 			Op:       expr.CmpOpEq,
-			Data:     []byte{protoData},
+			Data:     protoData,
 		})
 	}
 
@@ -399,9 +432,10 @@ func (m *AclManager) addIOFiltering(ip net.IP, proto firewall.Protocol, sPort *f
 	} else {
 		chain = m.chainOutputRules
 	}
-	nftRule := m.rConn.AddRule(&nftables.Rule{
+	nftRule := m.rConn.InsertRule(&nftables.Rule{
 		Table:    m.workTable,
 		Chain:    chain,
+		Position: 0,
 		Exprs:    expressions,
 		UserData: userData,
 	})
@@ -419,13 +453,139 @@ func (m *AclManager) addIOFiltering(ip net.IP, proto firewall.Protocol, sPort *f
 	return rule, nil
 }
 
+func (m *AclManager) addPreroutingFiltering(ipset *nftables.Set, proto firewall.Protocol, port *firewall.Port, ip net.IP) (*Rule, error) {
+	var protoData []byte
+	switch proto {
+	case firewall.ProtocolTCP:
+		protoData = []byte{unix.IPPROTO_TCP}
+	case firewall.ProtocolUDP:
+		protoData = []byte{unix.IPPROTO_UDP}
+	case firewall.ProtocolICMP:
+		protoData = []byte{unix.IPPROTO_ICMP}
+	default:
+		return nil, fmt.Errorf("unsupported protocol: %s", proto)
+	}
+
+	ruleId := generateRuleIdForMangle(ipset, ip, proto, port)
+	if r, ok := m.rules[ruleId]; ok {
+		return &Rule{
+			r.nftRule,
+			r.nftSet,
+			r.ruleID,
+			ip,
+		}, nil
+	}
+
+	var ipExpression expr.Any
+	// add individual IP for match if no ipset defined
+	rawIP := ip.To4()
+	if ipset == nil {
+		ipExpression = &expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 1,
+			Data:     rawIP,
+		}
+	} else {
+		ipExpression = &expr.Lookup{
+			SourceRegister: 1,
+			SetName:        ipset.Name,
+			SetID:          ipset.ID,
+		}
+	}
+
+	expressions := []expr.Any{
+		&expr.Payload{
+			DestRegister: 1,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       12,
+			Len:          4,
+		},
+		ipExpression,
+		&expr.Payload{
+			DestRegister: 1,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       16,
+			Len:          4,
+		},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 1,
+			Data:     m.wgIface.Address().IP.To4(),
+		},
+		&expr.Payload{
+			DestRegister: 1,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       uint32(9),
+			Len:          uint32(1),
+		},
+		&expr.Cmp{
+			Register: 1,
+			Op:       expr.CmpOpEq,
+			Data:     protoData,
+		},
+	}
+
+	if port != nil {
+		expressions = append(expressions,
+			&expr.Payload{
+				DestRegister: 1,
+				Base:         expr.PayloadBaseTransportHeader,
+				Offset:       2,
+				Len:          2,
+			},
+			&expr.Cmp{
+				Op:       expr.CmpOpEq,
+				Register: 1,
+				Data:     encodePort(*port),
+			},
+		)
+	}
+
+	expressions = append(expressions,
+		&expr.Immediate{
+			Register: 1,
+			Data:     postroutingMark,
+		},
+		&expr.Meta{
+			Key:            expr.MetaKeyMARK,
+			SourceRegister: true,
+			Register:       1,
+		},
+	)
+
+	nftRule := m.rConn.InsertRule(&nftables.Rule{
+		Table:    m.workTable,
+		Chain:    m.chainPrerouting,
+		Position: 0,
+		Exprs:    expressions,
+		UserData: []byte(ruleId),
+	})
+
+	if err := m.rConn.Flush(); err != nil {
+		return nil, fmt.Errorf("flush insert rule: %v", err)
+	}
+
+	rule := &Rule{
+		nftRule: nftRule,
+		nftSet:  ipset,
+		ruleID:  ruleId,
+		ip:      ip,
+	}
+
+	m.rules[ruleId] = rule
+	if ipset != nil {
+		m.ipsetStore.AddReferenceToIpset(ipset.Name)
+	}
+	return rule, nil
+}
+
 func (m *AclManager) createDefaultChains() (err error) {
 	// chainNameInputRules
 	chain := m.createChain(chainNameInputRules)
 	err = m.rConn.Flush()
 	if err != nil {
 		log.Debugf("failed to create chain (%s): %s", chain.Name, err)
-		return fmt.Errorf(flushError, err)
+		return err
 	}
 	m.chainInputRules = chain
 
@@ -441,6 +601,9 @@ func (m *AclManager) createDefaultChains() (err error) {
 	// netbird-acl-input-filter
 	// type filter hook input priority filter; policy accept;
 	chain = m.createFilterChainWithHook(chainNameInputFilter, nftables.ChainHookInput)
+	//netbird-acl-input-filter iifname "wt0" ip saddr 100.72.0.0/16 ip daddr != 100.72.0.0/16 accept
+	m.addRouteAllowRule(chain, expr.MetaKeyIIFNAME)
+	m.addFwdAllow(chain, expr.MetaKeyIIFNAME)
 	m.addJumpRule(chain, m.chainInputRules.Name, expr.MetaKeyIIFNAME) // to netbird-acl-input-rules
 	m.addDropExpressions(chain, expr.MetaKeyIIFNAME)
 	err = m.rConn.Flush()
@@ -452,6 +615,7 @@ func (m *AclManager) createDefaultChains() (err error) {
 	// netbird-acl-output-filter
 	// type filter hook output priority filter; policy accept;
 	chain = m.createFilterChainWithHook(chainNameOutputFilter, nftables.ChainHookOutput)
+	m.addRouteAllowRule(chain, expr.MetaKeyOIFNAME)
 	m.addFwdAllow(chain, expr.MetaKeyOIFNAME)
 	m.addJumpRule(chain, m.chainOutputRules.Name, expr.MetaKeyOIFNAME) // to netbird-acl-output-rules
 	m.addDropExpressions(chain, expr.MetaKeyOIFNAME)
@@ -463,15 +627,24 @@ func (m *AclManager) createDefaultChains() (err error) {
 
 	// netbird-acl-forward-filter
 	m.chainFwFilter = m.createFilterChainWithHook(chainNameForwardFilter, nftables.ChainHookForward)
-	m.addJumpRulesToRtForward() // to netbird-rt-fwd
+	m.addJumpRulesToRtForward() // to
+	m.addMarkAccept()
+	m.addJumpRuleToInputChain() // to netbird-acl-input-rules
 	m.addDropExpressions(m.chainFwFilter, expr.MetaKeyIIFNAME)
-
 	err = m.rConn.Flush()
 	if err != nil {
 		log.Debugf("failed to create chain (%s): %s", chainNameForwardFilter, err)
-		return fmt.Errorf(flushError, err)
+		return err
 	}
 
+	// netbird-acl-output-filter
+	// type filter hook output priority filter; policy accept;
+	m.chainPrerouting = m.createPreroutingMangle()
+	err = m.rConn.Flush()
+	if err != nil {
+		log.Debugf("failed to create chain (%s): %s", m.chainPrerouting.Name, err)
+		return err
+	}
 	return nil
 }
 
@@ -494,6 +667,59 @@ func (m *AclManager) addJumpRulesToRtForward() {
 		Chain: m.chainFwFilter,
 		Exprs: expressions,
 	})
+
+	expressions = []expr.Any{
+		&expr.Meta{Key: expr.MetaKeyOIFNAME, Register: 1},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 1,
+			Data:     ifname(m.wgIface.Name()),
+		},
+		&expr.Verdict{
+			Kind:  expr.VerdictJump,
+			Chain: m.routeingFwChainName,
+		},
+	}
+
+	_ = m.rConn.AddRule(&nftables.Rule{
+		Table: m.workTable,
+		Chain: m.chainFwFilter,
+		Exprs: expressions,
+	})
+}
+
+func (m *AclManager) addMarkAccept() {
+	// oifname "wt0" meta mark 0x000007e4 accept
+	// iifname "wt0" meta mark 0x000007e4 accept
+	ifaces := []expr.MetaKey{expr.MetaKeyIIFNAME, expr.MetaKeyOIFNAME}
+	for _, iface := range ifaces {
+		expressions := []expr.Any{
+			&expr.Meta{Key: iface, Register: 1},
+			&expr.Cmp{
+				Op:       expr.CmpOpEq,
+				Register: 1,
+				Data:     ifname(m.wgIface.Name()),
+			},
+			&expr.Meta{
+				Key:      expr.MetaKeyMARK,
+				Register: 1,
+			},
+			&expr.Cmp{
+				Op:       expr.CmpOpEq,
+				Register: 1,
+				Data:     postroutingMark,
+			},
+			&expr.Verdict{
+				Kind: expr.VerdictAccept,
+			},
+		}
+
+		_ = m.rConn.AddRule(&nftables.Rule{
+			Table: m.workTable,
+			Chain: m.chainFwFilter,
+			Exprs: expressions,
+		})
+	}
 }
 
 func (m *AclManager) createChain(name string) *nftables.Chain {
@@ -503,9 +729,6 @@ func (m *AclManager) createChain(name string) *nftables.Chain {
 	}
 
 	chain = m.rConn.AddChain(chain)
-
-	insertReturnTrafficRule(m.rConn, m.workTable, chain)
-
 	return chain
 }
 
@@ -523,6 +746,74 @@ func (m *AclManager) createFilterChainWithHook(name string, hookNum nftables.Cha
 	return m.rConn.AddChain(chain)
 }
 
+func (m *AclManager) createPreroutingMangle() *nftables.Chain {
+	polAccept := nftables.ChainPolicyAccept
+	chain := &nftables.Chain{
+		Name:     "netbird-acl-prerouting-filter",
+		Table:    m.workTable,
+		Hooknum:  nftables.ChainHookPrerouting,
+		Priority: nftables.ChainPriorityMangle,
+		Type:     nftables.ChainTypeFilter,
+		Policy:   &polAccept,
+	}
+
+	chain = m.rConn.AddChain(chain)
+
+	ip, _ := netip.AddrFromSlice(m.wgIface.Address().Network.IP.To4())
+	expressions := []expr.Any{
+		&expr.Meta{Key: expr.MetaKeyIIFNAME, Register: 1},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 1,
+			Data:     ifname(m.wgIface.Name()),
+		},
+		&expr.Payload{
+			DestRegister: 2,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       12,
+			Len:          4,
+		},
+		&expr.Bitwise{
+			SourceRegister: 2,
+			DestRegister:   2,
+			Len:            4,
+			Xor:            []byte{0x0, 0x0, 0x0, 0x0},
+			Mask:           m.wgIface.Address().Network.Mask,
+		},
+		&expr.Cmp{
+			Op:       expr.CmpOpNeq,
+			Register: 2,
+			Data:     ip.Unmap().AsSlice(),
+		},
+		&expr.Payload{
+			DestRegister: 1,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       16,
+			Len:          4,
+		},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 1,
+			Data:     m.wgIface.Address().IP.To4(),
+		},
+		&expr.Immediate{
+			Register: 1,
+			Data:     postroutingMark,
+		},
+		&expr.Meta{
+			Key:            expr.MetaKeyMARK,
+			SourceRegister: true,
+			Register:       1,
+		},
+	}
+	_ = m.rConn.AddRule(&nftables.Rule{
+		Table: m.workTable,
+		Chain: chain,
+		Exprs: expressions,
+	})
+	return chain
+}
+
 func (m *AclManager) addDropExpressions(chain *nftables.Chain, ifaceKey expr.MetaKey) []expr.Any {
 	expressions := []expr.Any{
 		&expr.Meta{Key: ifaceKey, Register: 1},
@@ -541,9 +832,101 @@ func (m *AclManager) addDropExpressions(chain *nftables.Chain, ifaceKey expr.Met
 	return nil
 }
 
+func (m *AclManager) addJumpRuleToInputChain() {
+	expressions := []expr.Any{
+		&expr.Meta{Key: expr.MetaKeyIIFNAME, Register: 1},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 1,
+			Data:     ifname(m.wgIface.Name()),
+		},
+		&expr.Verdict{
+			Kind:  expr.VerdictJump,
+			Chain: m.chainInputRules.Name,
+		},
+	}
+
+	_ = m.rConn.AddRule(&nftables.Rule{
+		Table: m.workTable,
+		Chain: m.chainFwFilter,
+		Exprs: expressions,
+	})
+}
+
+func (m *AclManager) addRouteAllowRule(chain *nftables.Chain, netIfName expr.MetaKey) {
+	ip, _ := netip.AddrFromSlice(m.wgIface.Address().Network.IP.To4())
+	var srcOp, dstOp expr.CmpOp
+	if netIfName == expr.MetaKeyIIFNAME {
+		srcOp = expr.CmpOpEq
+		dstOp = expr.CmpOpNeq
+	} else {
+		srcOp = expr.CmpOpNeq
+		dstOp = expr.CmpOpEq
+	}
+	expressions := []expr.Any{
+		&expr.Meta{Key: netIfName, Register: 1},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 1,
+			Data:     ifname(m.wgIface.Name()),
+		},
+		&expr.Payload{
+			DestRegister: 2,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       12,
+			Len:          4,
+		},
+		&expr.Bitwise{
+			SourceRegister: 2,
+			DestRegister:   2,
+			Len:            4,
+			Xor:            []byte{0x0, 0x0, 0x0, 0x0},
+			Mask:           m.wgIface.Address().Network.Mask,
+		},
+		&expr.Cmp{
+			Op:       srcOp,
+			Register: 2,
+			Data:     ip.Unmap().AsSlice(),
+		},
+		&expr.Payload{
+			DestRegister: 2,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       16,
+			Len:          4,
+		},
+		&expr.Bitwise{
+			SourceRegister: 2,
+			DestRegister:   2,
+			Len:            4,
+			Xor:            []byte{0x0, 0x0, 0x0, 0x0},
+			Mask:           m.wgIface.Address().Network.Mask,
+		},
+		&expr.Cmp{
+			Op:       dstOp,
+			Register: 2,
+			Data:     ip.Unmap().AsSlice(),
+		},
+		&expr.Verdict{
+			Kind: expr.VerdictAccept,
+		},
+	}
+	_ = m.rConn.AddRule(&nftables.Rule{
+		Table: chain.Table,
+		Chain: chain,
+		Exprs: expressions,
+	})
+}
+
 func (m *AclManager) addFwdAllow(chain *nftables.Chain, iifname expr.MetaKey) {
 	ip, _ := netip.AddrFromSlice(m.wgIface.Address().Network.IP.To4())
-	dstOp := expr.CmpOpNeq
+	var srcOp, dstOp expr.CmpOp
+	if iifname == expr.MetaKeyIIFNAME {
+		srcOp = expr.CmpOpNeq
+		dstOp = expr.CmpOpEq
+	} else {
+		srcOp = expr.CmpOpEq
+		dstOp = expr.CmpOpNeq
+	}
 	expressions := []expr.Any{
 		&expr.Meta{Key: iifname, Register: 1},
 		&expr.Cmp{
@@ -551,6 +934,24 @@ func (m *AclManager) addFwdAllow(chain *nftables.Chain, iifname expr.MetaKey) {
 			Register: 1,
 			Data:     ifname(m.wgIface.Name()),
 		},
+		&expr.Payload{
+			DestRegister: 2,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       12,
+			Len:          4,
+		},
+		&expr.Bitwise{
+			SourceRegister: 2,
+			DestRegister:   2,
+			Len:            4,
+			Xor:            []byte{0x0, 0x0, 0x0, 0x0},
+			Mask:           m.wgIface.Address().Network.Mask,
+		},
+		&expr.Cmp{
+			Op:       srcOp,
+			Register: 2,
+			Data:     ip.Unmap().AsSlice(),
+		},
 		&expr.Payload{
 			DestRegister: 2,
 			Base:         expr.PayloadBaseNetworkHeader,
@@ -581,6 +982,7 @@ func (m *AclManager) addFwdAllow(chain *nftables.Chain, iifname expr.MetaKey) {
 }
 
 func (m *AclManager) addJumpRule(chain *nftables.Chain, to string, ifaceKey expr.MetaKey) {
+	ip, _ := netip.AddrFromSlice(m.wgIface.Address().Network.IP.To4())
 	expressions := []expr.Any{
 		&expr.Meta{Key: ifaceKey, Register: 1},
 		&expr.Cmp{
@@ -588,12 +990,47 @@ func (m *AclManager) addJumpRule(chain *nftables.Chain, to string, ifaceKey expr
 			Register: 1,
 			Data:     ifname(m.wgIface.Name()),
 		},
+		&expr.Payload{
+			DestRegister: 2,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       12,
+			Len:          4,
+		},
+		&expr.Bitwise{
+			SourceRegister: 2,
+			DestRegister:   2,
+			Len:            4,
+			Xor:            []byte{0x0, 0x0, 0x0, 0x0},
+			Mask:           m.wgIface.Address().Network.Mask,
+		},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 2,
+			Data:     ip.Unmap().AsSlice(),
+		},
+		&expr.Payload{
+			DestRegister: 2,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       16,
+			Len:          4,
+		},
+		&expr.Bitwise{
+			SourceRegister: 2,
+			DestRegister:   2,
+			Len:            4,
+			Xor:            []byte{0x0, 0x0, 0x0, 0x0},
+			Mask:           m.wgIface.Address().Network.Mask,
+		},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 2,
+			Data:     ip.Unmap().AsSlice(),
+		},
 		&expr.Verdict{
 			Kind:  expr.VerdictJump,
 			Chain: to,
 		},
 	}
-
 	_ = m.rConn.AddRule(&nftables.Rule{
 		Table: chain.Table,
 		Chain: chain,
@@ -695,7 +1132,7 @@ func (m *AclManager) refreshRuleHandles(chain *nftables.Chain) error {
 	return nil
 }
 
-func generatePeerRuleId(
+func generateRuleId(
 	ip net.IP,
 	sPort *firewall.Port,
 	dPort *firewall.Port,
@@ -718,6 +1155,33 @@ func generatePeerRuleId(
 	}
 	return "set:" + ipset.Name + rulesetID
 }
+func generateRuleIdForMangle(ipset *nftables.Set, ip net.IP, proto firewall.Protocol, port *firewall.Port) string {
+	// case of icmp port is empty
+	var p string
+	if port != nil {
+		p = port.String()
+	}
+	if ipset != nil {
+		return fmt.Sprintf("p:set:%s:%s:%v", ipset.Name, proto, p)
+	} else {
+		return fmt.Sprintf("p:ip:%s:%s:%v", ip.String(), proto, p)
+	}
+}
+
+func shouldAddToPrerouting(proto firewall.Protocol, dPort *firewall.Port, direction firewall.RuleDirection) bool {
+	if proto == "all" {
+		return false
+	}
+
+	if direction != firewall.RuleDirectionIN {
+		return false
+	}
+
+	if dPort == nil && proto != firewall.ProtocolICMP {
+		return false
+	}
+	return true
+}
 
 func encodePort(port firewall.Port) []byte {
 	bs := make([]byte, 2)
@@ -727,19 +1191,6 @@ func encodePort(port firewall.Port) []byte {
 
 func ifname(n string) []byte {
 	b := make([]byte, 16)
-	copy(b, n+"\x00")
+	copy(b, []byte(n+"\x00"))
 	return b
 }
-
-func protoToInt(protocol firewall.Protocol) (uint8, error) {
-	switch protocol {
-	case firewall.ProtocolTCP:
-		return unix.IPPROTO_TCP, nil
-	case firewall.ProtocolUDP:
-		return unix.IPPROTO_UDP, nil
-	case firewall.ProtocolICMP:
-		return unix.IPPROTO_ICMP, nil
-	}
-
-	return 0, fmt.Errorf("unsupported protocol: %s", protocol)
-}

client/firewall/nftables/manager_linux.go

@@ -5,11 +5,9 @@ import (
 	"context"
 	"fmt"
 	"net"
-	"net/netip"
 	"sync"
 
 	"github.com/google/nftables"
-	"github.com/google/nftables/binaryutil"
 	"github.com/google/nftables/expr"
 	log "github.com/sirupsen/logrus"
 
@@ -17,11 +15,8 @@ import (
 )
 
 const (
-	// tableNameNetbird is the name of the table that is used for filtering by the Netbird client
-	tableNameNetbird = "netbird"
-
-	tableNameFilter = "filter"
-	chainNameInput  = "INPUT"
+	// tableName is the name of the table that is used for filtering by the Netbird client
+	tableName = "netbird"
 )
 
 // Manager of iptables firewall
@@ -46,12 +41,12 @@ func Create(context context.Context, wgIface iFaceMapper) (*Manager, error) {
 		return nil, err
 	}
 
-	m.router, err = newRouter(context, workTable, wgIface)
+	m.router, err = newRouter(context, workTable)
 	if err != nil {
 		return nil, err
 	}
 
-	m.aclManager, err = newAclManager(workTable, wgIface, chainNameRoutingFw)
+	m.aclManager, err = newAclManager(workTable, wgIface, m.router.RouteingFwChainName())
 	if err != nil {
 		return nil, err
 	}
@@ -59,11 +54,11 @@ func Create(context context.Context, wgIface iFaceMapper) (*Manager, error) {
 	return m, nil
 }
 
-// AddPeerFiltering rule to the firewall
+// AddFiltering rule to the firewall
 //
 // If comment argument is empty firewall manager should set
 // rule ID as comment for the rule
-func (m *Manager) AddPeerFiltering(
+func (m *Manager) AddFiltering(
 	ip net.IP,
 	proto firewall.Protocol,
 	sPort *firewall.Port,
@@ -81,52 +76,33 @@ func (m *Manager) AddPeerFiltering(
 		return nil, fmt.Errorf("unsupported IP version: %s", ip.String())
 	}
 
-	return m.aclManager.AddPeerFiltering(ip, proto, sPort, dPort, direction, action, ipsetName, comment)
+	return m.aclManager.AddFiltering(ip, proto, sPort, dPort, direction, action, ipsetName, comment)
 }
 
-func (m *Manager) AddRouteFiltering(sources []netip.Prefix, destination netip.Prefix, proto firewall.Protocol, sPort *firewall.Port, dPort *firewall.Port, action firewall.Action) (firewall.Rule, error) {
+// DeleteRule from the firewall by rule definition
+func (m *Manager) DeleteRule(rule firewall.Rule) error {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
-	if !destination.Addr().Is4() {
-		return nil, fmt.Errorf("unsupported IP version: %s", destination.Addr().String())
-	}
-
-	return m.router.AddRouteFiltering(sources, destination, proto, sPort, dPort, action)
-}
-
-// DeletePeerRule from the firewall by rule definition
-func (m *Manager) DeletePeerRule(rule firewall.Rule) error {
-	m.mutex.Lock()
-	defer m.mutex.Unlock()
-
-	return m.aclManager.DeletePeerRule(rule)
-}
-
-// DeleteRouteRule deletes a routing rule
-func (m *Manager) DeleteRouteRule(rule firewall.Rule) error {
-	m.mutex.Lock()
-	defer m.mutex.Unlock()
-
-	return m.router.DeleteRouteRule(rule)
+	return m.aclManager.DeleteRule(rule)
 }
 
 func (m *Manager) IsServerRouteSupported() bool {
 	return true
 }
 
-func (m *Manager) AddNatRule(pair firewall.RouterPair) error {
+func (m *Manager) InsertRoutingRules(pair firewall.RouterPair) error {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
-	return m.router.AddNatRule(pair)
+	return m.router.AddRoutingRules(pair)
 }
 
-func (m *Manager) RemoveNatRule(pair firewall.RouterPair) error {
+func (m *Manager) RemoveRoutingRules(pair firewall.RouterPair) error {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
-	return m.router.RemoveNatRule(pair)
+	return m.router.RemoveRoutingRules(pair)
 }
 
 // AllowNetbird allows netbird interface traffic
@@ -150,7 +126,7 @@ func (m *Manager) AllowNetbird() error {
 
 	var chain *nftables.Chain
 	for _, c := range chains {
-		if c.Table.Name == tableNameFilter && c.Name == chainNameForward {
+		if c.Table.Name == "filter" && c.Name == "INPUT" {
 			chain = c
 			break
 		}
@@ -181,27 +157,6 @@ func (m *Manager) AllowNetbird() error {
 	return nil
 }
 
-// SetLegacyManagement sets the route manager to use legacy management
-func (m *Manager) SetLegacyManagement(isLegacy bool) error {
-	oldLegacy := m.router.legacyManagement
-
-	if oldLegacy != isLegacy {
-		m.router.legacyManagement = isLegacy
-		log.Debugf("Set legacy management to %v", isLegacy)
-	}
-
-	// client reconnected to a newer mgmt, we need to cleanup the legacy rules
-	if !isLegacy && oldLegacy {
-		if err := m.router.RemoveAllLegacyRouteRules(); err != nil {
-			return fmt.Errorf("remove legacy routing rules: %v", err)
-		}
-
-		log.Debugf("Legacy routing rules removed")
-	}
-
-	return nil
-}
-
 // Reset firewall to the default state
 func (m *Manager) Reset() error {
 	m.mutex.Lock()
@@ -230,16 +185,14 @@ func (m *Manager) Reset() error {
 		}
 	}
 
-	if err := m.router.Reset(); err != nil {
-		return fmt.Errorf("reset forward rules: %v", err)
-	}
+	m.router.ResetForwardRules()
 
 	tables, err := m.rConn.ListTables()
 	if err != nil {
 		return fmt.Errorf("list of tables: %w", err)
 	}
 	for _, t := range tables {
-		if t.Name == tableNameNetbird {
+		if t.Name == tableName {
 			m.rConn.DelTable(t)
 		}
 	}
@@ -265,12 +218,12 @@ func (m *Manager) createWorkTable() (*nftables.Table, error) {
 	}
 
 	for _, t := range tables {
-		if t.Name == tableNameNetbird {
+		if t.Name == tableName {
 			m.rConn.DelTable(t)
 		}
 	}
 
-	table := m.rConn.AddTable(&nftables.Table{Name: tableNameNetbird, Family: nftables.TableFamilyIPv4})
+	table := m.rConn.AddTable(&nftables.Table{Name: tableName, Family: nftables.TableFamilyIPv4})
 	err = m.rConn.Flush()
 	return table, err
 }
@@ -286,7 +239,9 @@ func (m *Manager) applyAllowNetbirdRules(chain *nftables.Chain) {
 				Register: 1,
 				Data:     ifname(m.wgIface.Name()),
 			},
-			&expr.Verdict{},
+			&expr.Verdict{
+				Kind: expr.VerdictAccept,
+			},
 		},
 		UserData: []byte(allowNetbirdInputRuleID),
 	}
@@ -296,7 +251,7 @@ func (m *Manager) applyAllowNetbirdRules(chain *nftables.Chain) {
 func (m *Manager) detectAllowNetbirdRule(existedRules []*nftables.Rule) *nftables.Rule {
 	ifName := ifname(m.wgIface.Name())
 	for _, rule := range existedRules {
-		if rule.Table.Name == tableNameFilter && rule.Chain.Name == chainNameInput {
+		if rule.Table.Name == "filter" && rule.Chain.Name == "INPUT" {
 			if len(rule.Exprs) < 4 {
 				if e, ok := rule.Exprs[0].(*expr.Meta); !ok || e.Key != expr.MetaKeyIIFNAME {
 					continue
@@ -310,33 +265,3 @@ func (m *Manager) detectAllowNetbirdRule(existedRules []*nftables.Rule) *nftable
 	}
 	return nil
 }
-
-func insertReturnTrafficRule(conn *nftables.Conn, table *nftables.Table, chain *nftables.Chain) {
-	rule := &nftables.Rule{
-		Table: table,
-		Chain: chain,
-		Exprs: []expr.Any{
-			&expr.Ct{
-				Key:      expr.CtKeySTATE,
-				Register: 1,
-			},
-			&expr.Bitwise{
-				SourceRegister: 1,
-				DestRegister:   1,
-				Len:            4,
-				Mask:           binaryutil.NativeEndian.PutUint32(expr.CtStateBitESTABLISHED | expr.CtStateBitRELATED),
-				Xor:            binaryutil.NativeEndian.PutUint32(0),
-			},
-			&expr.Cmp{
-				Op:       expr.CmpOpNeq,
-				Register: 1,
-				Data:     []byte{0, 0, 0, 0},
-			},
-			&expr.Verdict{
-				Kind: expr.VerdictAccept,
-			},
-		},
-	}
-
-	conn.InsertRule(rule)
-}

client/firewall/nftables/manager_linux_test.go

@@ -9,30 +9,14 @@ import (
 	"time"
 
 	"github.com/google/nftables"
-	"github.com/google/nftables/binaryutil"
 	"github.com/google/nftables/expr"
 	"github.com/stretchr/testify/require"
 	"golang.org/x/sys/unix"
 
 	fw "github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/iface"
+	"github.com/netbirdio/netbird/iface"
 )
 
-var ifaceMock = &iFaceMock{
-	NameFunc: func() string {
-		return "lo"
-	},
-	AddressFunc: func() iface.WGAddress {
-		return iface.WGAddress{
-			IP: net.ParseIP("100.96.0.1"),
-			Network: &net.IPNet{
-				IP:   net.ParseIP("100.96.0.0"),
-				Mask: net.IPv4Mask(255, 255, 255, 0),
-			},
-		}
-	},
-}
-
 // iFaceMapper defines subset methods of interface required for manager
 type iFaceMock struct {
 	NameFunc    func() string
@@ -56,9 +40,23 @@ func (i *iFaceMock) Address() iface.WGAddress {
 func (i *iFaceMock) IsUserspaceBind() bool { return false }
 
 func TestNftablesManager(t *testing.T) {
+	mock := &iFaceMock{
+		NameFunc: func() string {
+			return "lo"
+		},
+		AddressFunc: func() iface.WGAddress {
+			return iface.WGAddress{
+				IP: net.ParseIP("100.96.0.1"),
+				Network: &net.IPNet{
+					IP:   net.ParseIP("100.96.0.0"),
+					Mask: net.IPv4Mask(255, 255, 255, 0),
+				},
+			}
+		},
+	}
 
 	// just check on the local interface
-	manager, err := Create(context.Background(), ifaceMock)
+	manager, err := Create(context.Background(), mock)
 	require.NoError(t, err)
 	time.Sleep(time.Second * 3)
 
@@ -72,7 +70,7 @@ func TestNftablesManager(t *testing.T) {
 
 	testClient := &nftables.Conn{}
 
-	rule, err := manager.AddPeerFiltering(
+	rule, err := manager.AddFiltering(
 		ip,
 		fw.ProtocolTCP,
 		nil,
@@ -90,34 +88,17 @@ func TestNftablesManager(t *testing.T) {
 	rules, err := testClient.GetRules(manager.aclManager.workTable, manager.aclManager.chainInputRules)
 	require.NoError(t, err, "failed to get rules")
 
-	require.Len(t, rules, 2, "expected 2 rules")
-
-	expectedExprs1 := []expr.Any{
-		&expr.Ct{
-			Key:      expr.CtKeySTATE,
-			Register: 1,
-		},
-		&expr.Bitwise{
-			SourceRegister: 1,
-			DestRegister:   1,
-			Len:            4,
-			Mask:           binaryutil.NativeEndian.PutUint32(expr.CtStateBitESTABLISHED | expr.CtStateBitRELATED),
-			Xor:            binaryutil.NativeEndian.PutUint32(0),
-		},
-		&expr.Cmp{
-			Op:       expr.CmpOpNeq,
-			Register: 1,
-			Data:     []byte{0, 0, 0, 0},
-		},
-		&expr.Verdict{
-			Kind: expr.VerdictAccept,
-		},
-	}
-	require.ElementsMatch(t, rules[0].Exprs, expectedExprs1, "expected the same expressions")
+	require.Len(t, rules, 1, "expected 1 rules")
 
 	ipToAdd, _ := netip.AddrFromSlice(ip)
 	add := ipToAdd.Unmap()
-	expectedExprs2 := []expr.Any{
+	expectedExprs := []expr.Any{
+		&expr.Meta{Key: expr.MetaKeyIIFNAME, Register: 1},
+		&expr.Cmp{
+			Op:       expr.CmpOpEq,
+			Register: 1,
+			Data:     ifname("lo"),
+		},
 		&expr.Payload{
 			DestRegister: 1,
 			Base:         expr.PayloadBaseNetworkHeader,
@@ -153,10 +134,10 @@ func TestNftablesManager(t *testing.T) {
 		},
 		&expr.Verdict{Kind: expr.VerdictDrop},
 	}
-	require.ElementsMatch(t, rules[1].Exprs, expectedExprs2, "expected the same expressions")
+	require.ElementsMatch(t, rules[0].Exprs, expectedExprs, "expected the same expressions")
 
 	for _, r := range rule {
-		err = manager.DeletePeerRule(r)
+		err = manager.DeleteRule(r)
 		require.NoError(t, err, "failed to delete rule")
 	}
 
@@ -165,8 +146,7 @@ func TestNftablesManager(t *testing.T) {
 
 	rules, err = testClient.GetRules(manager.aclManager.workTable, manager.aclManager.chainInputRules)
 	require.NoError(t, err, "failed to get rules")
-	// established rule remains
-	require.Len(t, rules, 1, "expected 1 rules after deletion")
+	require.Len(t, rules, 0, "expected 0 rules after deletion")
 
 	err = manager.Reset()
 	require.NoError(t, err, "failed to reset")
@@ -207,9 +187,9 @@ func TestNFtablesCreatePerformance(t *testing.T) {
 			for i := 0; i < testMax; i++ {
 				port := &fw.Port{Values: []int{1000 + i}}
 				if i%2 == 0 {
-					_, err = manager.AddPeerFiltering(ip, "tcp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept HTTP traffic")
+					_, err = manager.AddFiltering(ip, "tcp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept HTTP traffic")
 				} else {
-					_, err = manager.AddPeerFiltering(ip, "tcp", nil, port, fw.RuleDirectionIN, fw.ActionAccept, "", "accept HTTP traffic")
+					_, err = manager.AddFiltering(ip, "tcp", nil, port, fw.RuleDirectionIN, fw.ActionAccept, "", "accept HTTP traffic")
 				}
 				require.NoError(t, err, "failed to add rule")
 

client/firewall/nftables/route_linux.go

@@ -0,0 +1,431 @@
+package nftables
+
+import (
+	"bytes"
+	"context"
+	"errors"
+	"fmt"
+	"net"
+	"net/netip"
+
+	"github.com/google/nftables"
+	"github.com/google/nftables/binaryutil"
+	"github.com/google/nftables/expr"
+	log "github.com/sirupsen/logrus"
+
+	"github.com/netbirdio/netbird/client/firewall/manager"
+)
+
+const (
+	chainNameRouteingFw = "netbird-rt-fwd"
+	chainNameRoutingNat = "netbird-rt-nat"
+
+	userDataAcceptForwardRuleSrc = "frwacceptsrc"
+	userDataAcceptForwardRuleDst = "frwacceptdst"
+
+	loopbackInterface = "lo\x00"
+)
+
+// some presets for building nftable rules
+var (
+	zeroXor = binaryutil.NativeEndian.PutUint32(0)
+
+	exprCounterAccept = []expr.Any{
+		&expr.Counter{},
+		&expr.Verdict{
+			Kind: expr.VerdictAccept,
+		},
+	}
+
+	errFilterTableNotFound = fmt.Errorf("nftables: 'filter' table not found")
+)
+
+type router struct {
+	ctx         context.Context
+	stop        context.CancelFunc
+	conn        *nftables.Conn
+	workTable   *nftables.Table
+	filterTable *nftables.Table
+	chains      map[string]*nftables.Chain
+	// rules is useful to avoid duplicates and to get missing attributes that we don't have when adding new rules
+	rules                    map[string]*nftables.Rule
+	isDefaultFwdRulesEnabled bool
+}
+
+func newRouter(parentCtx context.Context, workTable *nftables.Table) (*router, error) {
+	ctx, cancel := context.WithCancel(parentCtx)
+
+	r := &router{
+		ctx:       ctx,
+		stop:      cancel,
+		conn:      &nftables.Conn{},
+		workTable: workTable,
+		chains:    make(map[string]*nftables.Chain),
+		rules:     make(map[string]*nftables.Rule),
+	}
+
+	var err error
+	r.filterTable, err = r.loadFilterTable()
+	if err != nil {
+		if errors.Is(err, errFilterTableNotFound) {
+			log.Warnf("table 'filter' not found for forward rules")
+		} else {
+			return nil, err
+		}
+	}
+
+	err = r.cleanUpDefaultForwardRules()
+	if err != nil {
+		log.Errorf("failed to clean up rules from FORWARD chain: %s", err)
+	}
+
+	err = r.createContainers()
+	if err != nil {
+		log.Errorf("failed to create containers for route: %s", err)
+	}
+	return r, err
+}
+
+func (r *router) RouteingFwChainName() string {
+	return chainNameRouteingFw
+}
+
+// ResetForwardRules cleans existing nftables default forward rules from the system
+func (r *router) ResetForwardRules() {
+	err := r.cleanUpDefaultForwardRules()
+	if err != nil {
+		log.Errorf("failed to reset forward rules: %s", err)
+	}
+}
+
+func (r *router) loadFilterTable() (*nftables.Table, error) {
+	tables, err := r.conn.ListTablesOfFamily(nftables.TableFamilyIPv4)
+	if err != nil {
+		return nil, fmt.Errorf("nftables: unable to list tables: %v", err)
+	}
+
+	for _, table := range tables {
+		if table.Name == "filter" {
+			return table, nil
+		}
+	}
+
+	return nil, errFilterTableNotFound
+}
+
+func (r *router) createContainers() error {
+
+	r.chains[chainNameRouteingFw] = r.conn.AddChain(&nftables.Chain{
+		Name:  chainNameRouteingFw,
+		Table: r.workTable,
+	})
+
+	r.chains[chainNameRoutingNat] = r.conn.AddChain(&nftables.Chain{
+		Name:     chainNameRoutingNat,
+		Table:    r.workTable,
+		Hooknum:  nftables.ChainHookPostrouting,
+		Priority: nftables.ChainPriorityNATSource - 1,
+		Type:     nftables.ChainTypeNAT,
+	})
+
+	// Add RETURN rule for loopback interface
+	loRule := &nftables.Rule{
+		Table: r.workTable,
+		Chain: r.chains[chainNameRoutingNat],
+		Exprs: []expr.Any{
+			&expr.Meta{Key: expr.MetaKeyOIFNAME, Register: 1},
+			&expr.Cmp{
+				Op:       expr.CmpOpEq,
+				Register: 1,
+				Data:     []byte(loopbackInterface),
+			},
+			&expr.Verdict{Kind: expr.VerdictReturn},
+		},
+	}
+	r.conn.InsertRule(loRule)
+
+	err := r.refreshRulesMap()
+	if err != nil {
+		log.Errorf("failed to clean up rules from FORWARD chain: %s", err)
+	}
+
+	err = r.conn.Flush()
+	if err != nil {
+		return fmt.Errorf("nftables: unable to initialize table: %v", err)
+	}
+	return nil
+}
+
+// AddRoutingRules appends a nftable rule pair to the forwarding chain and if enabled, to the nat chain
+func (r *router) AddRoutingRules(pair manager.RouterPair) error {
+	err := r.refreshRulesMap()
+	if err != nil {
+		return err
+	}
+
+	err = r.addRoutingRule(manager.ForwardingFormat, chainNameRouteingFw, pair, false)
+	if err != nil {
+		return err
+	}
+	err = r.addRoutingRule(manager.InForwardingFormat, chainNameRouteingFw, manager.GetInPair(pair), false)
+	if err != nil {
+		return err
+	}
+
+	if pair.Masquerade {
+		err = r.addRoutingRule(manager.NatFormat, chainNameRoutingNat, pair, true)
+		if err != nil {
+			return err
+		}
+		err = r.addRoutingRule(manager.InNatFormat, chainNameRoutingNat, manager.GetInPair(pair), true)
+		if err != nil {
+			return err
+		}
+	}
+
+	if r.filterTable != nil && !r.isDefaultFwdRulesEnabled {
+		log.Debugf("add default accept forward rule")
+		r.acceptForwardRule(pair.Source)
+	}
+
+	err = r.conn.Flush()
+	if err != nil {
+		return fmt.Errorf("nftables: unable to insert rules for %s: %v", pair.Destination, err)
+	}
+	return nil
+}
+
+// addRoutingRule inserts a nftable rule to the conn client flush queue
+func (r *router) addRoutingRule(format, chainName string, pair manager.RouterPair, isNat bool) error {
+	sourceExp := generateCIDRMatcherExpressions(true, pair.Source)
+	destExp := generateCIDRMatcherExpressions(false, pair.Destination)
+
+	var expression []expr.Any
+	if isNat {
+		expression = append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...) // nolint:gocritic
+	} else {
+		expression = append(sourceExp, append(destExp, exprCounterAccept...)...) // nolint:gocritic
+	}
+
+	ruleKey := manager.GenKey(format, pair.ID)
+
+	_, exists := r.rules[ruleKey]
+	if exists {
+		err := r.removeRoutingRule(format, pair)
+		if err != nil {
+			return err
+		}
+	}
+
+	r.rules[ruleKey] = r.conn.AddRule(&nftables.Rule{
+		Table:    r.workTable,
+		Chain:    r.chains[chainName],
+		Exprs:    expression,
+		UserData: []byte(ruleKey),
+	})
+	return nil
+}
+
+func (r *router) acceptForwardRule(sourceNetwork string) {
+	src := generateCIDRMatcherExpressions(true, sourceNetwork)
+	dst := generateCIDRMatcherExpressions(false, "0.0.0.0/0")
+
+	var exprs []expr.Any
+	exprs = append(src, append(dst, &expr.Verdict{ // nolint:gocritic
+		Kind: expr.VerdictAccept,
+	})...)
+
+	rule := &nftables.Rule{
+		Table: r.filterTable,
+		Chain: &nftables.Chain{
+			Name:     "FORWARD",
+			Table:    r.filterTable,
+			Type:     nftables.ChainTypeFilter,
+			Hooknum:  nftables.ChainHookForward,
+			Priority: nftables.ChainPriorityFilter,
+		},
+		Exprs:    exprs,
+		UserData: []byte(userDataAcceptForwardRuleSrc),
+	}
+
+	r.conn.AddRule(rule)
+
+	src = generateCIDRMatcherExpressions(true, "0.0.0.0/0")
+	dst = generateCIDRMatcherExpressions(false, sourceNetwork)
+
+	exprs = append(src, append(dst, &expr.Verdict{ //nolint:gocritic
+		Kind: expr.VerdictAccept,
+	})...)
+
+	rule = &nftables.Rule{
+		Table: r.filterTable,
+		Chain: &nftables.Chain{
+			Name:     "FORWARD",
+			Table:    r.filterTable,
+			Type:     nftables.ChainTypeFilter,
+			Hooknum:  nftables.ChainHookForward,
+			Priority: nftables.ChainPriorityFilter,
+		},
+		Exprs:    exprs,
+		UserData: []byte(userDataAcceptForwardRuleDst),
+	}
+	r.conn.AddRule(rule)
+	r.isDefaultFwdRulesEnabled = true
+}
+
+// RemoveRoutingRules removes a nftable rule pair from forwarding and nat chains
+func (r *router) RemoveRoutingRules(pair manager.RouterPair) error {
+	err := r.refreshRulesMap()
+	if err != nil {
+		return err
+	}
+
+	err = r.removeRoutingRule(manager.ForwardingFormat, pair)
+	if err != nil {
+		return err
+	}
+
+	err = r.removeRoutingRule(manager.InForwardingFormat, manager.GetInPair(pair))
+	if err != nil {
+		return err
+	}
+
+	err = r.removeRoutingRule(manager.NatFormat, pair)
+	if err != nil {
+		return err
+	}
+
+	err = r.removeRoutingRule(manager.InNatFormat, manager.GetInPair(pair))
+	if err != nil {
+		return err
+	}
+
+	if len(r.rules) == 0 {
+		err := r.cleanUpDefaultForwardRules()
+		if err != nil {
+			log.Errorf("failed to clean up rules from FORWARD chain: %s", err)
+		}
+	}
+
+	err = r.conn.Flush()
+	if err != nil {
+		return fmt.Errorf("nftables: received error while applying rule removal for %s: %v", pair.Destination, err)
+	}
+	log.Debugf("nftables: removed rules for %s", pair.Destination)
+	return nil
+}
+
+// removeRoutingRule add a nftable rule to the removal queue and delete from rules map
+func (r *router) removeRoutingRule(format string, pair manager.RouterPair) error {
+	ruleKey := manager.GenKey(format, pair.ID)
+
+	rule, found := r.rules[ruleKey]
+	if found {
+		ruleType := "forwarding"
+		if rule.Chain.Type == nftables.ChainTypeNAT {
+			ruleType = "nat"
+		}
+
+		err := r.conn.DelRule(rule)
+		if err != nil {
+			return fmt.Errorf("nftables: unable to remove %s rule for %s: %v", ruleType, pair.Destination, err)
+		}
+
+		log.Debugf("nftables: removing %s rule for %s", ruleType, pair.Destination)
+
+		delete(r.rules, ruleKey)
+	}
+	return nil
+}
+
+// refreshRulesMap refreshes the rule map with the latest rules. this is useful to avoid
+// duplicates and to get missing attributes that we don't have when adding new rules
+func (r *router) refreshRulesMap() error {
+	for _, chain := range r.chains {
+		rules, err := r.conn.GetRules(chain.Table, chain)
+		if err != nil {
+			return fmt.Errorf("nftables: unable to list rules: %v", err)
+		}
+		for _, rule := range rules {
+			if len(rule.UserData) > 0 {
+				r.rules[string(rule.UserData)] = rule
+			}
+		}
+	}
+	return nil
+}
+
+func (r *router) cleanUpDefaultForwardRules() error {
+	if r.filterTable == nil {
+		r.isDefaultFwdRulesEnabled = false
+		return nil
+	}
+
+	chains, err := r.conn.ListChainsOfTableFamily(nftables.TableFamilyIPv4)
+	if err != nil {
+		return err
+	}
+
+	var rules []*nftables.Rule
+	for _, chain := range chains {
+		if chain.Table.Name != r.filterTable.Name {
+			continue
+		}
+		if chain.Name != "FORWARD" {
+			continue
+		}
+
+		rules, err = r.conn.GetRules(r.filterTable, chain)
+		if err != nil {
+			return err
+		}
+	}
+
+	for _, rule := range rules {
+		if bytes.Equal(rule.UserData, []byte(userDataAcceptForwardRuleSrc)) || bytes.Equal(rule.UserData, []byte(userDataAcceptForwardRuleDst)) {
+			err := r.conn.DelRule(rule)
+			if err != nil {
+				return err
+			}
+		}
+	}
+	r.isDefaultFwdRulesEnabled = false
+	return r.conn.Flush()
+}
+
+// generateCIDRMatcherExpressions generates nftables expressions that matches a CIDR
+func generateCIDRMatcherExpressions(source bool, cidr string) []expr.Any {
+	ip, network, _ := net.ParseCIDR(cidr)
+	ipToAdd, _ := netip.AddrFromSlice(ip)
+	add := ipToAdd.Unmap()
+
+	var offSet uint32
+	if source {
+		offSet = 12 // src offset
+	} else {
+		offSet = 16 // dst offset
+	}
+
+	return []expr.Any{
+		// fetch src add
+		&expr.Payload{
+			DestRegister: 1,
+			Base:         expr.PayloadBaseNetworkHeader,
+			Offset:       offSet,
+			Len:          4,
+		},
+		// net mask
+		&expr.Bitwise{
+			DestRegister:   1,
+			SourceRegister: 1,
+			Len:            4,
+			Mask:           network.Mask,
+			Xor:            zeroXor,
+		},
+		// net address
+		&expr.Cmp{
+			Register: 1,
+			Data:     add.AsSlice(),
+		},
+	}
+}

client/firewall/nftables/router_linux.go

@@ -1,798 +0,0 @@
-package nftables
-
-import (
-	"bytes"
-	"context"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"net"
-	"net/netip"
-	"strings"
-
-	"github.com/google/nftables"
-	"github.com/google/nftables/binaryutil"
-	"github.com/google/nftables/expr"
-	"github.com/hashicorp/go-multierror"
-	log "github.com/sirupsen/logrus"
-
-	nberrors "github.com/netbirdio/netbird/client/errors"
-	firewall "github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/internal/acl/id"
-	"github.com/netbirdio/netbird/client/internal/routemanager/refcounter"
-)
-
-const (
-	chainNameRoutingFw  = "netbird-rt-fwd"
-	chainNameRoutingNat = "netbird-rt-nat"
-	chainNameForward    = "FORWARD"
-
-	userDataAcceptForwardRuleIif = "frwacceptiif"
-	userDataAcceptForwardRuleOif = "frwacceptoif"
-)
-
-const refreshRulesMapError = "refresh rules map: %w"
-
-var (
-	errFilterTableNotFound = fmt.Errorf("nftables: 'filter' table not found")
-)
-
-type router struct {
-	ctx         context.Context
-	stop        context.CancelFunc
-	conn        *nftables.Conn
-	workTable   *nftables.Table
-	filterTable *nftables.Table
-	chains      map[string]*nftables.Chain
-	// rules is useful to avoid duplicates and to get missing attributes that we don't have when adding new rules
-	rules        map[string]*nftables.Rule
-	ipsetCounter *refcounter.Counter[string, []netip.Prefix, *nftables.Set]
-
-	wgIface          iFaceMapper
-	legacyManagement bool
-}
-
-func newRouter(parentCtx context.Context, workTable *nftables.Table, wgIface iFaceMapper) (*router, error) {
-	ctx, cancel := context.WithCancel(parentCtx)
-
-	r := &router{
-		ctx:       ctx,
-		stop:      cancel,
-		conn:      &nftables.Conn{},
-		workTable: workTable,
-		chains:    make(map[string]*nftables.Chain),
-		rules:     make(map[string]*nftables.Rule),
-		wgIface:   wgIface,
-	}
-
-	r.ipsetCounter = refcounter.New(
-		r.createIpSet,
-		r.deleteIpSet,
-	)
-
-	var err error
-	r.filterTable, err = r.loadFilterTable()
-	if err != nil {
-		if errors.Is(err, errFilterTableNotFound) {
-			log.Warnf("table 'filter' not found for forward rules")
-		} else {
-			return nil, err
-		}
-	}
-
-	err = r.cleanUpDefaultForwardRules()
-	if err != nil {
-		log.Errorf("failed to clean up rules from FORWARD chain: %s", err)
-	}
-
-	err = r.createContainers()
-	if err != nil {
-		log.Errorf("failed to create containers for route: %s", err)
-	}
-	return r, err
-}
-
-// Reset cleans existing nftables default forward rules from the system
-func (r *router) Reset() error {
-	// clear without deleting the ipsets, the nf table will be deleted by the caller
-	r.ipsetCounter.Clear()
-
-	return r.cleanUpDefaultForwardRules()
-}
-
-func (r *router) cleanUpDefaultForwardRules() error {
-	if r.filterTable == nil {
-		return nil
-	}
-
-	chains, err := r.conn.ListChainsOfTableFamily(nftables.TableFamilyIPv4)
-	if err != nil {
-		return fmt.Errorf("list chains: %v", err)
-	}
-
-	for _, chain := range chains {
-		if chain.Table.Name != r.filterTable.Name || chain.Name != chainNameForward {
-			continue
-		}
-
-		rules, err := r.conn.GetRules(r.filterTable, chain)
-		if err != nil {
-			return fmt.Errorf("get rules: %v", err)
-		}
-
-		for _, rule := range rules {
-			if bytes.Equal(rule.UserData, []byte(userDataAcceptForwardRuleIif)) ||
-				bytes.Equal(rule.UserData, []byte(userDataAcceptForwardRuleOif)) {
-				if err := r.conn.DelRule(rule); err != nil {
-					return fmt.Errorf("delete rule: %v", err)
-				}
-			}
-		}
-	}
-
-	return r.conn.Flush()
-}
-
-func (r *router) loadFilterTable() (*nftables.Table, error) {
-	tables, err := r.conn.ListTablesOfFamily(nftables.TableFamilyIPv4)
-	if err != nil {
-		return nil, fmt.Errorf("nftables: unable to list tables: %v", err)
-	}
-
-	for _, table := range tables {
-		if table.Name == "filter" {
-			return table, nil
-		}
-	}
-
-	return nil, errFilterTableNotFound
-}
-
-func (r *router) createContainers() error {
-
-	r.chains[chainNameRoutingFw] = r.conn.AddChain(&nftables.Chain{
-		Name:  chainNameRoutingFw,
-		Table: r.workTable,
-	})
-
-	insertReturnTrafficRule(r.conn, r.workTable, r.chains[chainNameRoutingFw])
-
-	r.chains[chainNameRoutingNat] = r.conn.AddChain(&nftables.Chain{
-		Name:     chainNameRoutingNat,
-		Table:    r.workTable,
-		Hooknum:  nftables.ChainHookPostrouting,
-		Priority: nftables.ChainPriorityNATSource - 1,
-		Type:     nftables.ChainTypeNAT,
-	})
-
-	r.acceptForwardRules()
-
-	err := r.refreshRulesMap()
-	if err != nil {
-		log.Errorf("failed to clean up rules from FORWARD chain: %s", err)
-	}
-
-	err = r.conn.Flush()
-	if err != nil {
-		return fmt.Errorf("nftables: unable to initialize table: %v", err)
-	}
-	return nil
-}
-
-// AddRouteFiltering appends a nftables rule to the routing chain
-func (r *router) AddRouteFiltering(
-	sources []netip.Prefix,
-	destination netip.Prefix,
-	proto firewall.Protocol,
-	sPort *firewall.Port,
-	dPort *firewall.Port,
-	action firewall.Action,
-) (firewall.Rule, error) {
-	ruleKey := id.GenerateRouteRuleKey(sources, destination, proto, sPort, dPort, action)
-	if _, ok := r.rules[string(ruleKey)]; ok {
-		return ruleKey, nil
-	}
-
-	chain := r.chains[chainNameRoutingFw]
-	var exprs []expr.Any
-
-	switch {
-	case len(sources) == 1 && sources[0].Bits() == 0:
-		// If it's 0.0.0.0/0, we don't need to add any source matching
-	case len(sources) == 1:
-		// If there's only one source, we can use it directly
-		exprs = append(exprs, generateCIDRMatcherExpressions(true, sources[0])...)
-	default:
-		// If there are multiple sources, create or get an ipset
-		var err error
-		exprs, err = r.getIpSetExprs(sources, exprs)
-		if err != nil {
-			return nil, fmt.Errorf("get ipset expressions: %w", err)
-		}
-	}
-
-	// Handle destination
-	exprs = append(exprs, generateCIDRMatcherExpressions(false, destination)...)
-
-	// Handle protocol
-	if proto != firewall.ProtocolALL {
-		protoNum, err := protoToInt(proto)
-		if err != nil {
-			return nil, fmt.Errorf("convert protocol to number: %w", err)
-		}
-		exprs = append(exprs, &expr.Meta{Key: expr.MetaKeyL4PROTO, Register: 1})
-		exprs = append(exprs, &expr.Cmp{
-			Op:       expr.CmpOpEq,
-			Register: 1,
-			Data:     []byte{protoNum},
-		})
-
-		exprs = append(exprs, applyPort(sPort, true)...)
-		exprs = append(exprs, applyPort(dPort, false)...)
-	}
-
-	exprs = append(exprs, &expr.Counter{})
-
-	var verdict expr.VerdictKind
-	if action == firewall.ActionAccept {
-		verdict = expr.VerdictAccept
-	} else {
-		verdict = expr.VerdictDrop
-	}
-	exprs = append(exprs, &expr.Verdict{Kind: verdict})
-
-	rule := &nftables.Rule{
-		Table:    r.workTable,
-		Chain:    chain,
-		Exprs:    exprs,
-		UserData: []byte(ruleKey),
-	}
-
-	r.rules[string(ruleKey)] = r.conn.AddRule(rule)
-
-	return ruleKey, r.conn.Flush()
-}
-
-func (r *router) getIpSetExprs(sources []netip.Prefix, exprs []expr.Any) ([]expr.Any, error) {
-	setName := firewall.GenerateSetName(sources)
-	ref, err := r.ipsetCounter.Increment(setName, sources)
-	if err != nil {
-		return nil, fmt.Errorf("create or get ipset for sources: %w", err)
-	}
-
-	exprs = append(exprs,
-		&expr.Payload{
-			DestRegister: 1,
-			Base:         expr.PayloadBaseNetworkHeader,
-			Offset:       12,
-			Len:          4,
-		},
-		&expr.Lookup{
-			SourceRegister: 1,
-			SetName:        ref.Out.Name,
-			SetID:          ref.Out.ID,
-		},
-	)
-	return exprs, nil
-}
-
-func (r *router) DeleteRouteRule(rule firewall.Rule) error {
-	if err := r.refreshRulesMap(); err != nil {
-		return fmt.Errorf(refreshRulesMapError, err)
-	}
-
-	ruleKey := rule.GetRuleID()
-	nftRule, exists := r.rules[ruleKey]
-	if !exists {
-		log.Debugf("route rule %s not found", ruleKey)
-		return nil
-	}
-
-	setName := r.findSetNameInRule(nftRule)
-
-	if err := r.deleteNftRule(nftRule, ruleKey); err != nil {
-		return fmt.Errorf("delete: %w", err)
-	}
-
-	if setName != "" {
-		if _, err := r.ipsetCounter.Decrement(setName); err != nil {
-			return fmt.Errorf("decrement ipset reference: %w", err)
-		}
-	}
-
-	if err := r.conn.Flush(); err != nil {
-		return fmt.Errorf(flushError, err)
-	}
-
-	return nil
-}
-
-func (r *router) createIpSet(setName string, sources []netip.Prefix) (*nftables.Set, error) {
-	// overlapping prefixes will result in an error, so we need to merge them
-	sources = firewall.MergeIPRanges(sources)
-
-	set := &nftables.Set{
-		Name:  setName,
-		Table: r.workTable,
-		// required for prefixes
-		Interval: true,
-		KeyType:  nftables.TypeIPAddr,
-	}
-
-	var elements []nftables.SetElement
-	for _, prefix := range sources {
-		// TODO: Implement IPv6 support
-		if prefix.Addr().Is6() {
-			log.Printf("Skipping IPv6 prefix %s: IPv6 support not yet implemented", prefix)
-			continue
-		}
-
-		// nftables needs half-open intervals [firstIP, lastIP) for prefixes
-		// e.g. 10.0.0.0/24 becomes [10.0.0.0, 10.0.1.0), 10.1.1.1/32 becomes [10.1.1.1, 10.1.1.2) etc
-		firstIP := prefix.Addr()
-		lastIP := calculateLastIP(prefix).Next()
-
-		elements = append(elements,
-			// the nft tool also adds a line like this, see https://github.com/google/nftables/issues/247
-			// nftables.SetElement{Key: []byte{0, 0, 0, 0}, IntervalEnd: true},
-			nftables.SetElement{Key: firstIP.AsSlice()},
-			nftables.SetElement{Key: lastIP.AsSlice(), IntervalEnd: true},
-		)
-	}
-
-	if err := r.conn.AddSet(set, elements); err != nil {
-		return nil, fmt.Errorf("error adding elements to set %s: %w", setName, err)
-	}
-
-	if err := r.conn.Flush(); err != nil {
-		return nil, fmt.Errorf("flush error: %w", err)
-	}
-
-	log.Printf("Created new ipset: %s with %d elements", setName, len(elements)/2)
-
-	return set, nil
-}
-
-// calculateLastIP determines the last IP in a given prefix.
-func calculateLastIP(prefix netip.Prefix) netip.Addr {
-	hostMask := ^uint32(0) >> prefix.Masked().Bits()
-	lastIP := uint32FromNetipAddr(prefix.Addr()) | hostMask
-
-	return netip.AddrFrom4(uint32ToBytes(lastIP))
-}
-
-// Utility function to convert netip.Addr to uint32.
-func uint32FromNetipAddr(addr netip.Addr) uint32 {
-	b := addr.As4()
-	return binary.BigEndian.Uint32(b[:])
-}
-
-// Utility function to convert uint32 to a netip-compatible byte slice.
-func uint32ToBytes(ip uint32) [4]byte {
-	var b [4]byte
-	binary.BigEndian.PutUint32(b[:], ip)
-	return b
-}
-
-func (r *router) deleteIpSet(setName string, set *nftables.Set) error {
-	r.conn.DelSet(set)
-	if err := r.conn.Flush(); err != nil {
-		return fmt.Errorf(flushError, err)
-	}
-
-	log.Debugf("Deleted unused ipset %s", setName)
-	return nil
-}
-
-func (r *router) findSetNameInRule(rule *nftables.Rule) string {
-	for _, e := range rule.Exprs {
-		if lookup, ok := e.(*expr.Lookup); ok {
-			return lookup.SetName
-		}
-	}
-	return ""
-}
-
-func (r *router) deleteNftRule(rule *nftables.Rule, ruleKey string) error {
-	if err := r.conn.DelRule(rule); err != nil {
-		return fmt.Errorf("delete rule %s: %w", ruleKey, err)
-	}
-	delete(r.rules, ruleKey)
-
-	log.Debugf("removed route rule %s", ruleKey)
-
-	return nil
-}
-
-// AddNatRule appends a nftables rule pair to the nat chain
-func (r *router) AddNatRule(pair firewall.RouterPair) error {
-	if err := r.refreshRulesMap(); err != nil {
-		return fmt.Errorf(refreshRulesMapError, err)
-	}
-
-	if r.legacyManagement {
-		log.Warnf("This peer is connected to a NetBird Management service with an older version. Allowing all traffic for %s", pair.Destination)
-		if err := r.addLegacyRouteRule(pair); err != nil {
-			return fmt.Errorf("add legacy routing rule: %w", err)
-		}
-	}
-
-	if pair.Masquerade {
-		if err := r.addNatRule(pair); err != nil {
-			return fmt.Errorf("add nat rule: %w", err)
-		}
-
-		if err := r.addNatRule(firewall.GetInversePair(pair)); err != nil {
-			return fmt.Errorf("add inverse nat rule: %w", err)
-		}
-	}
-
-	if err := r.conn.Flush(); err != nil {
-		return fmt.Errorf("nftables: insert rules for %s: %v", pair.Destination, err)
-	}
-
-	return nil
-}
-
-// addNatRule inserts a nftables rule to the conn client flush queue
-func (r *router) addNatRule(pair firewall.RouterPair) error {
-	sourceExp := generateCIDRMatcherExpressions(true, pair.Source)
-	destExp := generateCIDRMatcherExpressions(false, pair.Destination)
-
-	dir := expr.MetaKeyIIFNAME
-	if pair.Inverse {
-		dir = expr.MetaKeyOIFNAME
-	}
-
-	intf := ifname(r.wgIface.Name())
-	exprs := []expr.Any{
-		&expr.Meta{
-			Key:      dir,
-			Register: 1,
-		},
-		&expr.Cmp{
-			Op:       expr.CmpOpEq,
-			Register: 1,
-			Data:     intf,
-		},
-	}
-
-	exprs = append(exprs, sourceExp...)
-	exprs = append(exprs, destExp...)
-	exprs = append(exprs,
-		&expr.Counter{}, &expr.Masq{},
-	)
-
-	ruleKey := firewall.GenKey(firewall.NatFormat, pair)
-
-	if _, exists := r.rules[ruleKey]; exists {
-		if err := r.removeNatRule(pair); err != nil {
-			return fmt.Errorf("remove routing rule: %w", err)
-		}
-	}
-
-	r.rules[ruleKey] = r.conn.AddRule(&nftables.Rule{
-		Table:    r.workTable,
-		Chain:    r.chains[chainNameRoutingNat],
-		Exprs:    exprs,
-		UserData: []byte(ruleKey),
-	})
-	return nil
-}
-
-// addLegacyRouteRule adds a legacy routing rule for mgmt servers pre route acls
-func (r *router) addLegacyRouteRule(pair firewall.RouterPair) error {
-	sourceExp := generateCIDRMatcherExpressions(true, pair.Source)
-	destExp := generateCIDRMatcherExpressions(false, pair.Destination)
-
-	exprs := []expr.Any{
-		&expr.Counter{},
-		&expr.Verdict{
-			Kind: expr.VerdictAccept,
-		},
-	}
-
-	expression := append(sourceExp, append(destExp, exprs...)...) // nolint:gocritic
-
-	ruleKey := firewall.GenKey(firewall.ForwardingFormat, pair)
-
-	if _, exists := r.rules[ruleKey]; exists {
-		if err := r.removeLegacyRouteRule(pair); err != nil {
-			return fmt.Errorf("remove legacy routing rule: %w", err)
-		}
-	}
-
-	r.rules[ruleKey] = r.conn.AddRule(&nftables.Rule{
-		Table:    r.workTable,
-		Chain:    r.chains[chainNameRoutingFw],
-		Exprs:    expression,
-		UserData: []byte(ruleKey),
-	})
-	return nil
-}
-
-// removeLegacyRouteRule removes a legacy routing rule for mgmt servers pre route acls
-func (r *router) removeLegacyRouteRule(pair firewall.RouterPair) error {
-	ruleKey := firewall.GenKey(firewall.ForwardingFormat, pair)
-
-	if rule, exists := r.rules[ruleKey]; exists {
-		if err := r.conn.DelRule(rule); err != nil {
-			return fmt.Errorf("remove legacy forwarding rule %s -> %s: %v", pair.Source, pair.Destination, err)
-		}
-
-		log.Debugf("nftables: removed legacy forwarding rule %s -> %s", pair.Source, pair.Destination)
-
-		delete(r.rules, ruleKey)
-	} else {
-		log.Debugf("nftables: legacy forwarding rule %s not found", ruleKey)
-	}
-
-	return nil
-}
-
-// GetLegacyManagement returns the route manager's legacy management mode
-func (r *router) GetLegacyManagement() bool {
-	return r.legacyManagement
-}
-
-// SetLegacyManagement sets the route manager to use legacy management mode
-func (r *router) SetLegacyManagement(isLegacy bool) {
-	r.legacyManagement = isLegacy
-}
-
-// RemoveAllLegacyRouteRules removes all legacy routing rules for mgmt servers pre route acls
-func (r *router) RemoveAllLegacyRouteRules() error {
-	if err := r.refreshRulesMap(); err != nil {
-		return fmt.Errorf(refreshRulesMapError, err)
-	}
-
-	var merr *multierror.Error
-	for k, rule := range r.rules {
-		if !strings.HasPrefix(k, firewall.ForwardingFormatPrefix) {
-			continue
-		}
-		if err := r.conn.DelRule(rule); err != nil {
-			merr = multierror.Append(merr, fmt.Errorf("remove legacy forwarding rule: %v", err))
-		}
-	}
-	return nberrors.FormatErrorOrNil(merr)
-}
-
-// acceptForwardRules adds iif/oif rules in the filter table/forward chain to make sure
-// that our traffic is not dropped by existing rules there.
-// The existing FORWARD rules/policies decide outbound traffic towards our interface.
-// In case the FORWARD policy is set to "drop", we add an established/related rule to allow return traffic for the inbound rule.
-func (r *router) acceptForwardRules() {
-	if r.filterTable == nil {
-		log.Debugf("table 'filter' not found for forward rules, skipping accept rules")
-		return
-	}
-
-	intf := ifname(r.wgIface.Name())
-
-	// Rule for incoming interface (iif) with counter
-	iifRule := &nftables.Rule{
-		Table: r.filterTable,
-		Chain: &nftables.Chain{
-			Name:     "FORWARD",
-			Table:    r.filterTable,
-			Type:     nftables.ChainTypeFilter,
-			Hooknum:  nftables.ChainHookForward,
-			Priority: nftables.ChainPriorityFilter,
-		},
-		Exprs: []expr.Any{
-			&expr.Meta{Key: expr.MetaKeyIIFNAME, Register: 1},
-			&expr.Cmp{
-				Op:       expr.CmpOpEq,
-				Register: 1,
-				Data:     intf,
-			},
-			&expr.Counter{},
-			&expr.Verdict{Kind: expr.VerdictAccept},
-		},
-		UserData: []byte(userDataAcceptForwardRuleIif),
-	}
-	r.conn.InsertRule(iifRule)
-
-	// Rule for outgoing interface (oif) with counter
-	oifRule := &nftables.Rule{
-		Table: r.filterTable,
-		Chain: &nftables.Chain{
-			Name:     "FORWARD",
-			Table:    r.filterTable,
-			Type:     nftables.ChainTypeFilter,
-			Hooknum:  nftables.ChainHookForward,
-			Priority: nftables.ChainPriorityFilter,
-		},
-		Exprs: []expr.Any{
-			&expr.Meta{Key: expr.MetaKeyOIFNAME, Register: 1},
-			&expr.Cmp{
-				Op:       expr.CmpOpEq,
-				Register: 1,
-				Data:     intf,
-			},
-			&expr.Ct{
-				Key:      expr.CtKeySTATE,
-				Register: 2,
-			},
-			&expr.Bitwise{
-				SourceRegister: 2,
-				DestRegister:   2,
-				Len:            4,
-				Mask:           binaryutil.NativeEndian.PutUint32(expr.CtStateBitESTABLISHED | expr.CtStateBitRELATED),
-				Xor:            binaryutil.NativeEndian.PutUint32(0),
-			},
-			&expr.Cmp{
-				Op:       expr.CmpOpNeq,
-				Register: 2,
-				Data:     []byte{0, 0, 0, 0},
-			},
-			&expr.Counter{},
-			&expr.Verdict{Kind: expr.VerdictAccept},
-		},
-		UserData: []byte(userDataAcceptForwardRuleOif),
-	}
-
-	r.conn.InsertRule(oifRule)
-}
-
-// RemoveNatRule removes a nftables rule pair from nat chains
-func (r *router) RemoveNatRule(pair firewall.RouterPair) error {
-	if err := r.refreshRulesMap(); err != nil {
-		return fmt.Errorf(refreshRulesMapError, err)
-	}
-
-	if err := r.removeNatRule(pair); err != nil {
-		return fmt.Errorf("remove nat rule: %w", err)
-	}
-
-	if err := r.removeNatRule(firewall.GetInversePair(pair)); err != nil {
-		return fmt.Errorf("remove inverse nat rule: %w", err)
-	}
-
-	if err := r.removeLegacyRouteRule(pair); err != nil {
-		return fmt.Errorf("remove legacy routing rule: %w", err)
-	}
-
-	if err := r.conn.Flush(); err != nil {
-		return fmt.Errorf("nftables: received error while applying rule removal for %s: %v", pair.Destination, err)
-	}
-
-	log.Debugf("nftables: removed rules for %s", pair.Destination)
-	return nil
-}
-
-// removeNatRule adds a nftables rule to the removal queue and deletes it from the rules map
-func (r *router) removeNatRule(pair firewall.RouterPair) error {
-	ruleKey := firewall.GenKey(firewall.NatFormat, pair)
-
-	if rule, exists := r.rules[ruleKey]; exists {
-		err := r.conn.DelRule(rule)
-		if err != nil {
-			return fmt.Errorf("remove nat rule %s -> %s: %v", pair.Source, pair.Destination, err)
-		}
-
-		log.Debugf("nftables: removed nat rule %s -> %s", pair.Source, pair.Destination)
-
-		delete(r.rules, ruleKey)
-	} else {
-		log.Debugf("nftables: nat rule %s not found", ruleKey)
-	}
-
-	return nil
-}
-
-// refreshRulesMap refreshes the rule map with the latest rules. this is useful to avoid
-// duplicates and to get missing attributes that we don't have when adding new rules
-func (r *router) refreshRulesMap() error {
-	for _, chain := range r.chains {
-		rules, err := r.conn.GetRules(chain.Table, chain)
-		if err != nil {
-			return fmt.Errorf("nftables: unable to list rules: %v", err)
-		}
-		for _, rule := range rules {
-			if len(rule.UserData) > 0 {
-				r.rules[string(rule.UserData)] = rule
-			}
-		}
-	}
-	return nil
-}
-
-// generateCIDRMatcherExpressions generates nftables expressions that matches a CIDR
-func generateCIDRMatcherExpressions(source bool, prefix netip.Prefix) []expr.Any {
-	var offset uint32
-	if source {
-		offset = 12 // src offset
-	} else {
-		offset = 16 // dst offset
-	}
-
-	ones := prefix.Bits()
-	// 0.0.0.0/0 doesn't need extra expressions
-	if ones == 0 {
-		return nil
-	}
-
-	mask := net.CIDRMask(ones, 32)
-
-	return []expr.Any{
-		&expr.Payload{
-			DestRegister: 1,
-			Base:         expr.PayloadBaseNetworkHeader,
-			Offset:       offset,
-			Len:          4,
-		},
-		// netmask
-		&expr.Bitwise{
-			DestRegister:   1,
-			SourceRegister: 1,
-			Len:            4,
-			Mask:           mask,
-			Xor:            []byte{0, 0, 0, 0},
-		},
-		// net address
-		&expr.Cmp{
-			Op:       expr.CmpOpEq,
-			Register: 1,
-			Data:     prefix.Masked().Addr().AsSlice(),
-		},
-	}
-}
-
-func applyPort(port *firewall.Port, isSource bool) []expr.Any {
-	if port == nil {
-		return nil
-	}
-
-	var exprs []expr.Any
-
-	offset := uint32(2) // Default offset for destination port
-	if isSource {
-		offset = 0 // Offset for source port
-	}
-
-	exprs = append(exprs, &expr.Payload{
-		DestRegister: 1,
-		Base:         expr.PayloadBaseTransportHeader,
-		Offset:       offset,
-		Len:          2,
-	})
-
-	if port.IsRange && len(port.Values) == 2 {
-		// Handle port range
-		exprs = append(exprs,
-			&expr.Cmp{
-				Op:       expr.CmpOpGte,
-				Register: 1,
-				Data:     binaryutil.BigEndian.PutUint16(uint16(port.Values[0])),
-			},
-			&expr.Cmp{
-				Op:       expr.CmpOpLte,
-				Register: 1,
-				Data:     binaryutil.BigEndian.PutUint16(uint16(port.Values[1])),
-			},
-		)
-	} else {
-		// Handle single port or multiple ports
-		for i, p := range port.Values {
-			if i > 0 {
-				// Add a bitwise OR operation between port checks
-				exprs = append(exprs, &expr.Bitwise{
-					SourceRegister: 1,
-					DestRegister:   1,
-					Len:            4,
-					Mask:           []byte{0x00, 0x00, 0xff, 0xff},
-					Xor:            []byte{0x00, 0x00, 0x00, 0x00},
-				})
-			}
-			exprs = append(exprs, &expr.Cmp{
-				Op:       expr.CmpOpEq,
-				Register: 1,
-				Data:     binaryutil.BigEndian.PutUint16(uint16(p)),
-			})
-		}
-	}
-
-	return exprs
-}

client/firewall/nftables/router_linux_test.go

@@ -4,15 +4,11 @@ package nftables
 
 import (
 	"context"
-	"encoding/binary"
-	"net/netip"
-	"os/exec"
 	"testing"
 
 	"github.com/coreos/go-iptables/iptables"
 	"github.com/google/nftables"
 	"github.com/google/nftables/expr"
-	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 
 	firewall "github.com/netbirdio/netbird/client/firewall/manager"
@@ -28,50 +24,56 @@ const (
 	NFTABLES
 )
 
-func TestNftablesManager_AddNatRule(t *testing.T) {
+func TestNftablesManager_InsertRoutingRules(t *testing.T) {
 	if check() != NFTABLES {
 		t.Skip("nftables not supported on this OS")
 	}
 
 	table, err := createWorkTable()
-	require.NoError(t, err, "Failed to create work table")
+	if err != nil {
+		t.Fatal(err)
+	}
 
 	defer deleteWorkTable()
 
 	for _, testCase := range test.InsertRuleTestCases {
 		t.Run(testCase.Name, func(t *testing.T) {
-			manager, err := newRouter(context.TODO(), table, ifaceMock)
+			manager, err := newRouter(context.TODO(), table)
 			require.NoError(t, err, "failed to create router")
 
 			nftablesTestingClient := &nftables.Conn{}
 
-			defer func(manager *router) {
-				require.NoError(t, manager.Reset(), "failed to reset rules")
-			}(manager)
+			defer manager.ResetForwardRules()
 
 			require.NoError(t, err, "shouldn't return error")
 
-			err = manager.AddNatRule(testCase.InputPair)
-			require.NoError(t, err, "pair should be inserted")
+			err = manager.AddRoutingRules(testCase.InputPair)
+			defer func() {
+				_ = manager.RemoveRoutingRules(testCase.InputPair)
+			}()
+			require.NoError(t, err, "forwarding pair should be inserted")
 
-			defer func(manager *router, pair firewall.RouterPair) {
-				require.NoError(t, manager.RemoveNatRule(pair), "failed to remove rule")
-			}(manager, testCase.InputPair)
+			sourceExp := generateCIDRMatcherExpressions(true, testCase.InputPair.Source)
+			destExp := generateCIDRMatcherExpressions(false, testCase.InputPair.Destination)
+			testingExpression := append(sourceExp, destExp...) //nolint:gocritic
+			fwdRuleKey := firewall.GenKey(firewall.ForwardingFormat, testCase.InputPair.ID)
+
+			found := 0
+			for _, chain := range manager.chains {
+				rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
+				require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
+				for _, rule := range rules {
+					if len(rule.UserData) > 0 && string(rule.UserData) == fwdRuleKey {
+						require.ElementsMatchf(t, rule.Exprs[:len(testingExpression)], testingExpression, "forwarding rule elements should match")
+						found = 1
+					}
+				}
+			}
+
+			require.Equal(t, 1, found, "should find at least 1 rule to test")
 
 			if testCase.InputPair.Masquerade {
-				sourceExp := generateCIDRMatcherExpressions(true, testCase.InputPair.Source)
-				destExp := generateCIDRMatcherExpressions(false, testCase.InputPair.Destination)
-				testingExpression := append(sourceExp, destExp...) //nolint:gocritic
-				testingExpression = append(testingExpression,
-					&expr.Meta{Key: expr.MetaKeyIIFNAME, Register: 1},
-					&expr.Cmp{
-						Op:       expr.CmpOpEq,
-						Register: 1,
-						Data:     ifname(ifaceMock.Name()),
-					},
-				)
-
-				natRuleKey := firewall.GenKey(firewall.NatFormat, testCase.InputPair)
+				natRuleKey := firewall.GenKey(firewall.NatFormat, testCase.InputPair.ID)
 				found := 0
 				for _, chain := range manager.chains {
 					rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
@@ -86,20 +88,27 @@ func TestNftablesManager_AddNatRule(t *testing.T) {
 				require.Equal(t, 1, found, "should find at least 1 rule to test")
 			}
 
-			if testCase.InputPair.Masquerade {
-				sourceExp := generateCIDRMatcherExpressions(true, testCase.InputPair.Source)
-				destExp := generateCIDRMatcherExpressions(false, testCase.InputPair.Destination)
-				testingExpression := append(sourceExp, destExp...) //nolint:gocritic
-				testingExpression = append(testingExpression,
-					&expr.Meta{Key: expr.MetaKeyOIFNAME, Register: 1},
-					&expr.Cmp{
-						Op:       expr.CmpOpEq,
-						Register: 1,
-						Data:     ifname(ifaceMock.Name()),
-					},
-				)
+			sourceExp = generateCIDRMatcherExpressions(true, firewall.GetInPair(testCase.InputPair).Source)
+			destExp = generateCIDRMatcherExpressions(false, firewall.GetInPair(testCase.InputPair).Destination)
+			testingExpression = append(sourceExp, destExp...) //nolint:gocritic
+			inFwdRuleKey := firewall.GenKey(firewall.InForwardingFormat, testCase.InputPair.ID)
 
-				inNatRuleKey := firewall.GenKey(firewall.NatFormat, firewall.GetInversePair(testCase.InputPair))
+			found = 0
+			for _, chain := range manager.chains {
+				rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
+				require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
+				for _, rule := range rules {
+					if len(rule.UserData) > 0 && string(rule.UserData) == inFwdRuleKey {
+						require.ElementsMatchf(t, rule.Exprs[:len(testingExpression)], testingExpression, "income forwarding rule elements should match")
+						found = 1
+					}
+				}
+			}
+
+			require.Equal(t, 1, found, "should find at least 1 rule to test")
+
+			if testCase.InputPair.Masquerade {
+				inNatRuleKey := firewall.GenKey(firewall.InNatFormat, testCase.InputPair.ID)
 				found := 0
 				for _, chain := range manager.chains {
 					rules, err := nftablesTestingClient.GetRules(chain.Table, chain)
@@ -113,37 +122,45 @@ func TestNftablesManager_AddNatRule(t *testing.T) {
 				}
 				require.Equal(t, 1, found, "should find at least 1 rule to test")
 			}
-
 		})
 	}
 }
 
-func TestNftablesManager_RemoveNatRule(t *testing.T) {
+func TestNftablesManager_RemoveRoutingRules(t *testing.T) {
 	if check() != NFTABLES {
 		t.Skip("nftables not supported on this OS")
 	}
 
 	table, err := createWorkTable()
-	require.NoError(t, err, "Failed to create work table")
+	if err != nil {
+		t.Fatal(err)
+	}
 
 	defer deleteWorkTable()
 
 	for _, testCase := range test.RemoveRuleTestCases {
 		t.Run(testCase.Name, func(t *testing.T) {
-			manager, err := newRouter(context.TODO(), table, ifaceMock)
+			manager, err := newRouter(context.TODO(), table)
 			require.NoError(t, err, "failed to create router")
 
 			nftablesTestingClient := &nftables.Conn{}
 
-			defer func(manager *router) {
-				require.NoError(t, manager.Reset(), "failed to reset rules")
-			}(manager)
+			defer manager.ResetForwardRules()
 
 			sourceExp := generateCIDRMatcherExpressions(true, testCase.InputPair.Source)
 			destExp := generateCIDRMatcherExpressions(false, testCase.InputPair.Destination)
 
+			forwardExp := append(sourceExp, append(destExp, exprCounterAccept...)...) //nolint:gocritic
+			forwardRuleKey := firewall.GenKey(firewall.ForwardingFormat, testCase.InputPair.ID)
+			insertedForwarding := nftablesTestingClient.InsertRule(&nftables.Rule{
+				Table:    manager.workTable,
+				Chain:    manager.chains[chainNameRouteingFw],
+				Exprs:    forwardExp,
+				UserData: []byte(forwardRuleKey),
+			})
+
 			natExp := append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...) //nolint:gocritic
-			natRuleKey := firewall.GenKey(firewall.NatFormat, testCase.InputPair)
+			natRuleKey := firewall.GenKey(firewall.NatFormat, testCase.InputPair.ID)
 
 			insertedNat := nftablesTestingClient.InsertRule(&nftables.Rule{
 				Table:    manager.workTable,
@@ -152,11 +169,20 @@ func TestNftablesManager_RemoveNatRule(t *testing.T) {
 				UserData: []byte(natRuleKey),
 			})
 
-			sourceExp = generateCIDRMatcherExpressions(true, firewall.GetInversePair(testCase.InputPair).Source)
-			destExp = generateCIDRMatcherExpressions(false, firewall.GetInversePair(testCase.InputPair).Destination)
+			sourceExp = generateCIDRMatcherExpressions(true, firewall.GetInPair(testCase.InputPair).Source)
+			destExp = generateCIDRMatcherExpressions(false, firewall.GetInPair(testCase.InputPair).Destination)
+
+			forwardExp = append(sourceExp, append(destExp, exprCounterAccept...)...) //nolint:gocritic
+			inForwardRuleKey := firewall.GenKey(firewall.InForwardingFormat, testCase.InputPair.ID)
+			insertedInForwarding := nftablesTestingClient.InsertRule(&nftables.Rule{
+				Table:    manager.workTable,
+				Chain:    manager.chains[chainNameRouteingFw],
+				Exprs:    forwardExp,
+				UserData: []byte(inForwardRuleKey),
+			})
 
 			natExp = append(sourceExp, append(destExp, &expr.Counter{}, &expr.Masq{})...) //nolint:gocritic
-			inNatRuleKey := firewall.GenKey(firewall.NatFormat, firewall.GetInversePair(testCase.InputPair))
+			inNatRuleKey := firewall.GenKey(firewall.InNatFormat, testCase.InputPair.ID)
 
 			insertedInNat := nftablesTestingClient.InsertRule(&nftables.Rule{
 				Table:    manager.workTable,
@@ -168,10 +194,9 @@ func TestNftablesManager_RemoveNatRule(t *testing.T) {
 			err = nftablesTestingClient.Flush()
 			require.NoError(t, err, "shouldn't return error")
 
-			err = manager.Reset()
-			require.NoError(t, err, "shouldn't return error")
+			manager.ResetForwardRules()
 
-			err = manager.RemoveNatRule(testCase.InputPair)
+			err = manager.RemoveRoutingRules(testCase.InputPair)
 			require.NoError(t, err, "shouldn't return error")
 
 			for _, chain := range manager.chains {
@@ -179,7 +204,9 @@ func TestNftablesManager_RemoveNatRule(t *testing.T) {
 				require.NoError(t, err, "should list rules for %s table and %s chain", chain.Table.Name, chain.Name)
 				for _, rule := range rules {
 					if len(rule.UserData) > 0 {
+						require.NotEqual(t, insertedForwarding.UserData, rule.UserData, "forwarding rule should not exist")
 						require.NotEqual(t, insertedNat.UserData, rule.UserData, "nat rule should not exist")
+						require.NotEqual(t, insertedInForwarding.UserData, rule.UserData, "income forwarding rule should not exist")
 						require.NotEqual(t, insertedInNat.UserData, rule.UserData, "income nat rule should not exist")
 					}
 				}
@@ -188,468 +215,6 @@ func TestNftablesManager_RemoveNatRule(t *testing.T) {
 	}
 }
 
-func TestRouter_AddRouteFiltering(t *testing.T) {
-	if check() != NFTABLES {
-		t.Skip("nftables not supported on this system")
-	}
-
-	workTable, err := createWorkTable()
-	require.NoError(t, err, "Failed to create work table")
-
-	defer deleteWorkTable()
-
-	r, err := newRouter(context.Background(), workTable, ifaceMock)
-	require.NoError(t, err, "Failed to create router")
-
-	defer func(r *router) {
-		require.NoError(t, r.Reset(), "Failed to reset rules")
-	}(r)
-
-	tests := []struct {
-		name        string
-		sources     []netip.Prefix
-		destination netip.Prefix
-		proto       firewall.Protocol
-		sPort       *firewall.Port
-		dPort       *firewall.Port
-		direction   firewall.RuleDirection
-		action      firewall.Action
-		expectSet   bool
-	}{
-		{
-			name:        "Basic TCP rule with single source",
-			sources:     []netip.Prefix{netip.MustParsePrefix("192.168.1.0/24")},
-			destination: netip.MustParsePrefix("10.0.0.0/24"),
-			proto:       firewall.ProtocolTCP,
-			sPort:       nil,
-			dPort:       &firewall.Port{Values: []int{80}},
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name: "UDP rule with multiple sources",
-			sources: []netip.Prefix{
-				netip.MustParsePrefix("172.16.0.0/16"),
-				netip.MustParsePrefix("192.168.0.0/16"),
-			},
-			destination: netip.MustParsePrefix("10.0.0.0/8"),
-			proto:       firewall.ProtocolUDP,
-			sPort:       &firewall.Port{Values: []int{1024, 2048}, IsRange: true},
-			dPort:       nil,
-			direction:   firewall.RuleDirectionOUT,
-			action:      firewall.ActionDrop,
-			expectSet:   true,
-		},
-		{
-			name:        "All protocols rule",
-			sources:     []netip.Prefix{netip.MustParsePrefix("10.0.0.0/8")},
-			destination: netip.MustParsePrefix("0.0.0.0/0"),
-			proto:       firewall.ProtocolALL,
-			sPort:       nil,
-			dPort:       nil,
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name:        "ICMP rule",
-			sources:     []netip.Prefix{netip.MustParsePrefix("192.168.0.0/16")},
-			destination: netip.MustParsePrefix("10.0.0.0/8"),
-			proto:       firewall.ProtocolICMP,
-			sPort:       nil,
-			dPort:       nil,
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name:        "TCP rule with multiple source ports",
-			sources:     []netip.Prefix{netip.MustParsePrefix("172.16.0.0/12")},
-			destination: netip.MustParsePrefix("192.168.0.0/16"),
-			proto:       firewall.ProtocolTCP,
-			sPort:       &firewall.Port{Values: []int{80, 443, 8080}},
-			dPort:       nil,
-			direction:   firewall.RuleDirectionOUT,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name:        "UDP rule with single IP and port range",
-			sources:     []netip.Prefix{netip.MustParsePrefix("192.168.1.1/32")},
-			destination: netip.MustParsePrefix("10.0.0.0/24"),
-			proto:       firewall.ProtocolUDP,
-			sPort:       nil,
-			dPort:       &firewall.Port{Values: []int{5000, 5100}, IsRange: true},
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionDrop,
-			expectSet:   false,
-		},
-		{
-			name:        "TCP rule with source and destination ports",
-			sources:     []netip.Prefix{netip.MustParsePrefix("10.0.0.0/24")},
-			destination: netip.MustParsePrefix("172.16.0.0/16"),
-			proto:       firewall.ProtocolTCP,
-			sPort:       &firewall.Port{Values: []int{1024, 65535}, IsRange: true},
-			dPort:       &firewall.Port{Values: []int{22}},
-			direction:   firewall.RuleDirectionOUT,
-			action:      firewall.ActionAccept,
-			expectSet:   false,
-		},
-		{
-			name:        "Drop all incoming traffic",
-			sources:     []netip.Prefix{netip.MustParsePrefix("0.0.0.0/0")},
-			destination: netip.MustParsePrefix("192.168.0.0/24"),
-			proto:       firewall.ProtocolALL,
-			sPort:       nil,
-			dPort:       nil,
-			direction:   firewall.RuleDirectionIN,
-			action:      firewall.ActionDrop,
-			expectSet:   false,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			ruleKey, err := r.AddRouteFiltering(tt.sources, tt.destination, tt.proto, tt.sPort, tt.dPort, tt.action)
-			require.NoError(t, err, "AddRouteFiltering failed")
-
-			// Check if the rule is in the internal map
-			rule, ok := r.rules[ruleKey.GetRuleID()]
-			assert.True(t, ok, "Rule not found in internal map")
-
-			t.Log("Internal rule expressions:")
-			for i, expr := range rule.Exprs {
-				t.Logf("  [%d] %T: %+v", i, expr, expr)
-			}
-
-			// Verify internal rule content
-			verifyRule(t, rule, tt.sources, tt.destination, tt.proto, tt.sPort, tt.dPort, tt.direction, tt.action, tt.expectSet)
-
-			// Check if the rule exists in nftables and verify its content
-			rules, err := r.conn.GetRules(r.workTable, r.chains[chainNameRoutingFw])
-			require.NoError(t, err, "Failed to get rules from nftables")
-
-			var nftRule *nftables.Rule
-			for _, rule := range rules {
-				if string(rule.UserData) == ruleKey.GetRuleID() {
-					nftRule = rule
-					break
-				}
-			}
-
-			require.NotNil(t, nftRule, "Rule not found in nftables")
-			t.Log("Actual nftables rule expressions:")
-			for i, expr := range nftRule.Exprs {
-				t.Logf("  [%d] %T: %+v", i, expr, expr)
-			}
-
-			// Verify actual nftables rule content
-			verifyRule(t, nftRule, tt.sources, tt.destination, tt.proto, tt.sPort, tt.dPort, tt.direction, tt.action, tt.expectSet)
-
-			// Clean up
-			err = r.DeleteRouteRule(ruleKey)
-			require.NoError(t, err, "Failed to delete rule")
-		})
-	}
-}
-
-func TestNftablesCreateIpSet(t *testing.T) {
-	if check() != NFTABLES {
-		t.Skip("nftables not supported on this system")
-	}
-
-	workTable, err := createWorkTable()
-	require.NoError(t, err, "Failed to create work table")
-
-	defer deleteWorkTable()
-
-	r, err := newRouter(context.Background(), workTable, ifaceMock)
-	require.NoError(t, err, "Failed to create router")
-
-	defer func() {
-		require.NoError(t, r.Reset(), "Failed to reset router")
-	}()
-
-	tests := []struct {
-		name     string
-		sources  []netip.Prefix
-		expected []netip.Prefix
-	}{
-		{
-			name:    "Single IP",
-			sources: []netip.Prefix{netip.MustParsePrefix("192.168.1.1/32")},
-		},
-		{
-			name: "Multiple IPs",
-			sources: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.1/32"),
-				netip.MustParsePrefix("10.0.0.1/32"),
-				netip.MustParsePrefix("172.16.0.1/32"),
-			},
-		},
-		{
-			name:    "Single Subnet",
-			sources: []netip.Prefix{netip.MustParsePrefix("192.168.0.0/24")},
-		},
-		{
-			name: "Multiple Subnets with Various Prefix Lengths",
-			sources: []netip.Prefix{
-				netip.MustParsePrefix("10.0.0.0/8"),
-				netip.MustParsePrefix("172.16.0.0/16"),
-				netip.MustParsePrefix("192.168.1.0/24"),
-				netip.MustParsePrefix("203.0.113.0/26"),
-			},
-		},
-		{
-			name: "Mix of Single IPs and Subnets in Different Positions",
-			sources: []netip.Prefix{
-				netip.MustParsePrefix("192.168.1.1/32"),
-				netip.MustParsePrefix("10.0.0.0/16"),
-				netip.MustParsePrefix("172.16.0.1/32"),
-				netip.MustParsePrefix("203.0.113.0/24"),
-			},
-		},
-		{
-			name: "Overlapping IPs/Subnets",
-			sources: []netip.Prefix{
-				netip.MustParsePrefix("10.0.0.0/8"),
-				netip.MustParsePrefix("10.0.0.0/16"),
-				netip.MustParsePrefix("10.0.0.1/32"),
-				netip.MustParsePrefix("192.168.0.0/16"),
-				netip.MustParsePrefix("192.168.1.0/24"),
-				netip.MustParsePrefix("192.168.1.1/32"),
-			},
-			expected: []netip.Prefix{
-				netip.MustParsePrefix("10.0.0.0/8"),
-				netip.MustParsePrefix("192.168.0.0/16"),
-			},
-		},
-	}
-
-	// Add this helper function inside TestNftablesCreateIpSet
-	printNftSets := func() {
-		cmd := exec.Command("nft", "list", "sets")
-		output, err := cmd.CombinedOutput()
-		if err != nil {
-			t.Logf("Failed to run 'nft list sets': %v", err)
-		} else {
-			t.Logf("Current nft sets:\n%s", output)
-		}
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			setName := firewall.GenerateSetName(tt.sources)
-			set, err := r.createIpSet(setName, tt.sources)
-			if err != nil {
-				t.Logf("Failed to create IP set: %v", err)
-				printNftSets()
-				require.NoError(t, err, "Failed to create IP set")
-			}
-			require.NotNil(t, set, "Created set is nil")
-
-			// Verify set properties
-			assert.Equal(t, setName, set.Name, "Set name mismatch")
-			assert.Equal(t, r.workTable, set.Table, "Set table mismatch")
-			assert.True(t, set.Interval, "Set interval property should be true")
-			assert.Equal(t, nftables.TypeIPAddr, set.KeyType, "Set key type mismatch")
-
-			// Fetch the created set from nftables
-			fetchedSet, err := r.conn.GetSetByName(r.workTable, setName)
-			require.NoError(t, err, "Failed to fetch created set")
-			require.NotNil(t, fetchedSet, "Fetched set is nil")
-
-			// Verify set elements
-			elements, err := r.conn.GetSetElements(fetchedSet)
-			require.NoError(t, err, "Failed to get set elements")
-
-			// Count the number of unique prefixes (excluding interval end markers)
-			uniquePrefixes := make(map[string]bool)
-			for _, elem := range elements {
-				if !elem.IntervalEnd {
-					ip := netip.AddrFrom4(*(*[4]byte)(elem.Key))
-					uniquePrefixes[ip.String()] = true
-				}
-			}
-
-			// Check against expected merged prefixes
-			expectedCount := len(tt.expected)
-			if expectedCount == 0 {
-				expectedCount = len(tt.sources)
-			}
-			assert.Equal(t, expectedCount, len(uniquePrefixes), "Number of unique prefixes in set doesn't match expected")
-
-			// Verify each expected prefix is in the set
-			for _, expected := range tt.expected {
-				found := false
-				for _, elem := range elements {
-					if !elem.IntervalEnd {
-						ip := netip.AddrFrom4(*(*[4]byte)(elem.Key))
-						if expected.Contains(ip) {
-							found = true
-							break
-						}
-					}
-				}
-				assert.True(t, found, "Expected prefix %s not found in set", expected)
-			}
-
-			r.conn.DelSet(set)
-			if err := r.conn.Flush(); err != nil {
-				t.Logf("Failed to delete set: %v", err)
-				printNftSets()
-			}
-			require.NoError(t, err, "Failed to delete set")
-		})
-	}
-}
-
-func verifyRule(t *testing.T, rule *nftables.Rule, sources []netip.Prefix, destination netip.Prefix, proto firewall.Protocol, sPort, dPort *firewall.Port, direction firewall.RuleDirection, action firewall.Action, expectSet bool) {
-	t.Helper()
-
-	assert.NotNil(t, rule, "Rule should not be nil")
-
-	// Verify sources and destination
-	if expectSet {
-		assert.True(t, containsSetLookup(rule.Exprs), "Rule should contain set lookup for multiple sources")
-	} else if len(sources) == 1 && sources[0].Bits() != 0 {
-		if direction == firewall.RuleDirectionIN {
-			assert.True(t, containsCIDRMatcher(rule.Exprs, sources[0], true), "Rule should contain source CIDR matcher for %s", sources[0])
-		} else {
-			assert.True(t, containsCIDRMatcher(rule.Exprs, sources[0], false), "Rule should contain destination CIDR matcher for %s", sources[0])
-		}
-	}
-
-	if direction == firewall.RuleDirectionIN {
-		assert.True(t, containsCIDRMatcher(rule.Exprs, destination, false), "Rule should contain destination CIDR matcher for %s", destination)
-	} else {
-		assert.True(t, containsCIDRMatcher(rule.Exprs, destination, true), "Rule should contain source CIDR matcher for %s", destination)
-	}
-
-	// Verify protocol
-	if proto != firewall.ProtocolALL {
-		assert.True(t, containsProtocol(rule.Exprs, proto), "Rule should contain protocol matcher for %s", proto)
-	}
-
-	// Verify ports
-	if sPort != nil {
-		assert.True(t, containsPort(rule.Exprs, sPort, true), "Rule should contain source port matcher for %v", sPort)
-	}
-	if dPort != nil {
-		assert.True(t, containsPort(rule.Exprs, dPort, false), "Rule should contain destination port matcher for %v", dPort)
-	}
-
-	// Verify action
-	assert.True(t, containsAction(rule.Exprs, action), "Rule should contain correct action: %s", action)
-}
-
-func containsSetLookup(exprs []expr.Any) bool {
-	for _, e := range exprs {
-		if _, ok := e.(*expr.Lookup); ok {
-			return true
-		}
-	}
-	return false
-}
-
-func containsCIDRMatcher(exprs []expr.Any, prefix netip.Prefix, isSource bool) bool {
-	var offset uint32
-	if isSource {
-		offset = 12 // src offset
-	} else {
-		offset = 16 // dst offset
-	}
-
-	var payloadFound, bitwiseFound, cmpFound bool
-	for _, e := range exprs {
-		switch ex := e.(type) {
-		case *expr.Payload:
-			if ex.Base == expr.PayloadBaseNetworkHeader && ex.Offset == offset && ex.Len == 4 {
-				payloadFound = true
-			}
-		case *expr.Bitwise:
-			if ex.Len == 4 && len(ex.Mask) == 4 && len(ex.Xor) == 4 {
-				bitwiseFound = true
-			}
-		case *expr.Cmp:
-			if ex.Op == expr.CmpOpEq && len(ex.Data) == 4 {
-				cmpFound = true
-			}
-		}
-	}
-	return (payloadFound && bitwiseFound && cmpFound) || prefix.Bits() == 0
-}
-
-func containsPort(exprs []expr.Any, port *firewall.Port, isSource bool) bool {
-	var offset uint32 = 2 // Default offset for destination port
-	if isSource {
-		offset = 0 // Offset for source port
-	}
-
-	var payloadFound, portMatchFound bool
-	for _, e := range exprs {
-		switch ex := e.(type) {
-		case *expr.Payload:
-			if ex.Base == expr.PayloadBaseTransportHeader && ex.Offset == offset && ex.Len == 2 {
-				payloadFound = true
-			}
-		case *expr.Cmp:
-			if port.IsRange {
-				if ex.Op == expr.CmpOpGte || ex.Op == expr.CmpOpLte {
-					portMatchFound = true
-				}
-			} else {
-				if ex.Op == expr.CmpOpEq && len(ex.Data) == 2 {
-					portValue := binary.BigEndian.Uint16(ex.Data)
-					for _, p := range port.Values {
-						if uint16(p) == portValue {
-							portMatchFound = true
-							break
-						}
-					}
-				}
-			}
-		}
-		if payloadFound && portMatchFound {
-			return true
-		}
-	}
-	return false
-}
-
-func containsProtocol(exprs []expr.Any, proto firewall.Protocol) bool {
-	var metaFound, cmpFound bool
-	expectedProto, _ := protoToInt(proto)
-	for _, e := range exprs {
-		switch ex := e.(type) {
-		case *expr.Meta:
-			if ex.Key == expr.MetaKeyL4PROTO {
-				metaFound = true
-			}
-		case *expr.Cmp:
-			if ex.Op == expr.CmpOpEq && len(ex.Data) == 1 && ex.Data[0] == expectedProto {
-				cmpFound = true
-			}
-		}
-	}
-	return metaFound && cmpFound
-}
-
-func containsAction(exprs []expr.Any, action firewall.Action) bool {
-	for _, e := range exprs {
-		if verdict, ok := e.(*expr.Verdict); ok {
-			switch action {
-			case firewall.ActionAccept:
-				return verdict.Kind == expr.VerdictAccept
-			case firewall.ActionDrop:
-				return verdict.Kind == expr.VerdictDrop
-			}
-		}
-	}
-	return false
-}
-
 // check returns the firewall type based on common lib checks. It returns UNKNOWN if no firewall is found.
 func check() int {
 	nf := nftables.Conn{}
@@ -685,12 +250,12 @@ func createWorkTable() (*nftables.Table, error) {
 	}
 
 	for _, t := range tables {
-		if t.Name == tableNameNetbird {
+		if t.Name == tableName {
 			sConn.DelTable(t)
 		}
 	}
 
-	table := sConn.AddTable(&nftables.Table{Name: tableNameNetbird, Family: nftables.TableFamilyIPv4})
+	table := sConn.AddTable(&nftables.Table{Name: tableName, Family: nftables.TableFamilyIPv4})
 	err = sConn.Flush()
 
 	return table, err
@@ -708,7 +273,7 @@ func deleteWorkTable() {
 	}
 
 	for _, t := range tables {
-		if t.Name == tableNameNetbird {
+		if t.Name == tableName {
 			sConn.DelTable(t)
 		}
 	}

client/firewall/test/cases_linux.go

@@ -1,10 +1,8 @@
+//go:build !android
+
 package test
 
-import (
-	"net/netip"
-
-	firewall "github.com/netbirdio/netbird/client/firewall/manager"
-)
+import firewall "github.com/netbirdio/netbird/client/firewall/manager"
 
 var (
 	InsertRuleTestCases = []struct {
@@ -15,8 +13,8 @@ var (
 			Name: "Insert Forwarding IPV4 Rule",
 			InputPair: firewall.RouterPair{
 				ID:          "zxa",
-				Source:      netip.MustParsePrefix("100.100.100.1/32"),
-				Destination: netip.MustParsePrefix("100.100.200.0/24"),
+				Source:      "100.100.100.1/32",
+				Destination: "100.100.200.0/24",
 				Masquerade:  false,
 			},
 		},
@@ -24,8 +22,8 @@ var (
 			Name: "Insert Forwarding And Nat IPV4 Rules",
 			InputPair: firewall.RouterPair{
 				ID:          "zxa",
-				Source:      netip.MustParsePrefix("100.100.100.1/32"),
-				Destination: netip.MustParsePrefix("100.100.200.0/24"),
+				Source:      "100.100.100.1/32",
+				Destination: "100.100.200.0/24",
 				Masquerade:  true,
 			},
 		},
@@ -40,8 +38,8 @@ var (
 			Name: "Remove Forwarding And Nat IPV4 Rules",
 			InputPair: firewall.RouterPair{
 				ID:          "zxa",
-				Source:      netip.MustParsePrefix("100.100.100.1/32"),
-				Destination: netip.MustParsePrefix("100.100.200.0/24"),
+				Source:      "100.100.100.1/32",
+				Destination: "100.100.200.0/24",
 				Masquerade:  true,
 			},
 		},

client/firewall/uspfilter/uspfilter.go

@@ -3,7 +3,6 @@ package uspfilter
 import (
 	"fmt"
 	"net"
-	"net/netip"
 	"sync"
 
 	"github.com/google/gopacket"
@@ -12,8 +11,7 @@ import (
 	log "github.com/sirupsen/logrus"
 
 	firewall "github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/iface/device"
+	"github.com/netbirdio/netbird/iface"
 )
 
 const layerTypeAll = 0
@@ -24,7 +22,7 @@ var (
 
 // IFaceMapper defines subset methods of interface required for manager
 type IFaceMapper interface {
-	SetFilter(device.PacketFilter) error
+	SetFilter(iface.PacketFilter) error
 	Address() iface.WGAddress
 }
 
@@ -105,26 +103,26 @@ func (m *Manager) IsServerRouteSupported() bool {
 	}
 }
 
-func (m *Manager) AddNatRule(pair firewall.RouterPair) error {
+func (m *Manager) InsertRoutingRules(pair firewall.RouterPair) error {
 	if m.nativeFirewall == nil {
 		return errRouteNotSupported
 	}
-	return m.nativeFirewall.AddNatRule(pair)
+	return m.nativeFirewall.InsertRoutingRules(pair)
 }
 
-// RemoveNatRule removes a routing firewall rule
-func (m *Manager) RemoveNatRule(pair firewall.RouterPair) error {
+// RemoveRoutingRules removes a routing firewall rule
+func (m *Manager) RemoveRoutingRules(pair firewall.RouterPair) error {
 	if m.nativeFirewall == nil {
 		return errRouteNotSupported
 	}
-	return m.nativeFirewall.RemoveNatRule(pair)
+	return m.nativeFirewall.RemoveRoutingRules(pair)
 }
 
-// AddPeerFiltering rule to the firewall
+// AddFiltering rule to the firewall
 //
 // If comment argument is empty firewall manager should set
 // rule ID as comment for the rule
-func (m *Manager) AddPeerFiltering(
+func (m *Manager) AddFiltering(
 	ip net.IP,
 	proto firewall.Protocol,
 	sPort *firewall.Port,
@@ -190,22 +188,8 @@ func (m *Manager) AddPeerFiltering(
 	return []firewall.Rule{&r}, nil
 }
 
-func (m *Manager) AddRouteFiltering(sources [] netip.Prefix, destination netip.Prefix, proto firewall.Protocol, sPort *firewall.Port, dPort *firewall.Port, action firewall.Action ) (firewall.Rule, error) {
-	if m.nativeFirewall == nil {
-		return nil, errRouteNotSupported
-	}
-	return m.nativeFirewall.AddRouteFiltering(sources, destination, proto, sPort, dPort, action)
-}
-
-func (m *Manager) DeleteRouteRule(rule firewall.Rule) error {
-	if m.nativeFirewall == nil {
-		return errRouteNotSupported
-	}
-	return m.nativeFirewall.DeleteRouteRule(rule)
-}
-
-// DeletePeerRule from the firewall by rule definition
-func (m *Manager) DeletePeerRule(rule firewall.Rule) error {
+// DeleteRule from the firewall by rule definition
+func (m *Manager) DeleteRule(rule firewall.Rule) error {
 	m.mutex.Lock()
 	defer m.mutex.Unlock()
 
@@ -231,11 +215,6 @@ func (m *Manager) DeletePeerRule(rule firewall.Rule) error {
 	return nil
 }
 
-// SetLegacyManagement doesn't need to be implemented for this manager
-func (m *Manager) SetLegacyManagement(_ bool) error {
-	return nil
-}
-
 // Flush doesn't need to be implemented for this manager
 func (m *Manager) Flush() error { return nil }
 
@@ -358,6 +337,7 @@ func validateRule(ip net.IP, packetData []byte, rules map[string]Rule, d *decode
 			if rule.dPort != 0 && rule.dPort == uint16(d.udp.DstPort) {
 				return rule.drop, true
 			}
+			return rule.drop, true
 		case layers.LayerTypeICMPv4, layers.LayerTypeICMPv6:
 			return rule.drop, true
 		}
@@ -416,7 +396,7 @@ func (m *Manager) RemovePacketHook(hookID string) error {
 		for _, r := range arr {
 			if r.id == hookID {
 				rule := r
-				return m.DeletePeerRule(&rule)
+				return m.DeleteRule(&rule)
 			}
 		}
 	}
@@ -424,7 +404,7 @@ func (m *Manager) RemovePacketHook(hookID string) error {
 		for _, r := range arr {
 			if r.id == hookID {
 				rule := r
-				return m.DeletePeerRule(&rule)
+				return m.DeleteRule(&rule)
 			}
 		}
 	}

client/firewall/uspfilter/uspfilter_test.go

@@ -11,16 +11,15 @@ import (
 	"github.com/stretchr/testify/require"
 
 	fw "github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/iface/device"
+	"github.com/netbirdio/netbird/iface"
 )
 
 type IFaceMock struct {
-	SetFilterFunc func(device.PacketFilter) error
+	SetFilterFunc func(iface.PacketFilter) error
 	AddressFunc   func() iface.WGAddress
 }
 
-func (i *IFaceMock) SetFilter(iface device.PacketFilter) error {
+func (i *IFaceMock) SetFilter(iface iface.PacketFilter) error {
 	if i.SetFilterFunc == nil {
 		return fmt.Errorf("not implemented")
 	}
@@ -36,7 +35,7 @@ func (i *IFaceMock) Address() iface.WGAddress {
 
 func TestManagerCreate(t *testing.T) {
 	ifaceMock := &IFaceMock{
-		SetFilterFunc: func(device.PacketFilter) error { return nil },
+		SetFilterFunc: func(iface.PacketFilter) error { return nil },
 	}
 
 	m, err := Create(ifaceMock)
@@ -50,10 +49,10 @@ func TestManagerCreate(t *testing.T) {
 	}
 }
 
-func TestManagerAddPeerFiltering(t *testing.T) {
+func TestManagerAddFiltering(t *testing.T) {
 	isSetFilterCalled := false
 	ifaceMock := &IFaceMock{
-		SetFilterFunc: func(device.PacketFilter) error {
+		SetFilterFunc: func(iface.PacketFilter) error {
 			isSetFilterCalled = true
 			return nil
 		},
@@ -72,7 +71,7 @@ func TestManagerAddPeerFiltering(t *testing.T) {
 	action := fw.ActionDrop
 	comment := "Test rule"
 
-	rule, err := m.AddPeerFiltering(ip, proto, nil, port, direction, action, "", comment)
+	rule, err := m.AddFiltering(ip, proto, nil, port, direction, action, "", comment)
 	if err != nil {
 		t.Errorf("failed to add filtering: %v", err)
 		return
@@ -91,7 +90,7 @@ func TestManagerAddPeerFiltering(t *testing.T) {
 
 func TestManagerDeleteRule(t *testing.T) {
 	ifaceMock := &IFaceMock{
-		SetFilterFunc: func(device.PacketFilter) error { return nil },
+		SetFilterFunc: func(iface.PacketFilter) error { return nil },
 	}
 
 	m, err := Create(ifaceMock)
@@ -107,7 +106,7 @@ func TestManagerDeleteRule(t *testing.T) {
 	action := fw.ActionDrop
 	comment := "Test rule"
 
-	rule, err := m.AddPeerFiltering(ip, proto, nil, port, direction, action, "", comment)
+	rule, err := m.AddFiltering(ip, proto, nil, port, direction, action, "", comment)
 	if err != nil {
 		t.Errorf("failed to add filtering: %v", err)
 		return
@@ -120,14 +119,14 @@ func TestManagerDeleteRule(t *testing.T) {
 	action = fw.ActionDrop
 	comment = "Test rule 2"
 
-	rule2, err := m.AddPeerFiltering(ip, proto, nil, port, direction, action, "", comment)
+	rule2, err := m.AddFiltering(ip, proto, nil, port, direction, action, "", comment)
 	if err != nil {
 		t.Errorf("failed to add filtering: %v", err)
 		return
 	}
 
 	for _, r := range rule {
-		err = m.DeletePeerRule(r)
+		err = m.DeleteRule(r)
 		if err != nil {
 			t.Errorf("failed to delete rule: %v", err)
 			return
@@ -141,7 +140,7 @@ func TestManagerDeleteRule(t *testing.T) {
 	}
 
 	for _, r := range rule2 {
-		err = m.DeletePeerRule(r)
+		err = m.DeleteRule(r)
 		if err != nil {
 			t.Errorf("failed to delete rule: %v", err)
 			return
@@ -237,7 +236,7 @@ func TestAddUDPPacketHook(t *testing.T) {
 
 func TestManagerReset(t *testing.T) {
 	ifaceMock := &IFaceMock{
-		SetFilterFunc: func(device.PacketFilter) error { return nil },
+		SetFilterFunc: func(iface.PacketFilter) error { return nil },
 	}
 
 	m, err := Create(ifaceMock)
@@ -253,7 +252,7 @@ func TestManagerReset(t *testing.T) {
 	action := fw.ActionDrop
 	comment := "Test rule"
 
-	_, err = m.AddPeerFiltering(ip, proto, nil, port, direction, action, "", comment)
+	_, err = m.AddFiltering(ip, proto, nil, port, direction, action, "", comment)
 	if err != nil {
 		t.Errorf("failed to add filtering: %v", err)
 		return
@@ -272,7 +271,7 @@ func TestManagerReset(t *testing.T) {
 
 func TestNotMatchByIP(t *testing.T) {
 	ifaceMock := &IFaceMock{
-		SetFilterFunc: func(device.PacketFilter) error { return nil },
+		SetFilterFunc: func(iface.PacketFilter) error { return nil },
 	}
 
 	m, err := Create(ifaceMock)
@@ -291,7 +290,7 @@ func TestNotMatchByIP(t *testing.T) {
 	action := fw.ActionAccept
 	comment := "Test rule"
 
-	_, err = m.AddPeerFiltering(ip, proto, nil, nil, direction, action, "", comment)
+	_, err = m.AddFiltering(ip, proto, nil, nil, direction, action, "", comment)
 	if err != nil {
 		t.Errorf("failed to add filtering: %v", err)
 		return
@@ -340,7 +339,7 @@ func TestNotMatchByIP(t *testing.T) {
 func TestRemovePacketHook(t *testing.T) {
 	// creating mock iface
 	iface := &IFaceMock{
-		SetFilterFunc: func(device.PacketFilter) error { return nil },
+		SetFilterFunc: func(iface.PacketFilter) error { return nil },
 	}
 
 	// creating manager instance
@@ -389,7 +388,7 @@ func TestUSPFilterCreatePerformance(t *testing.T) {
 		t.Run(fmt.Sprintf("Testing %d rules", testMax), func(t *testing.T) {
 			// just check on the local interface
 			ifaceMock := &IFaceMock{
-				SetFilterFunc: func(device.PacketFilter) error { return nil },
+				SetFilterFunc: func(iface.PacketFilter) error { return nil },
 			}
 			manager, err := Create(ifaceMock)
 			require.NoError(t, err)
@@ -407,9 +406,9 @@ func TestUSPFilterCreatePerformance(t *testing.T) {
 			for i := 0; i < testMax; i++ {
 				port := &fw.Port{Values: []int{1000 + i}}
 				if i%2 == 0 {
-					_, err = manager.AddPeerFiltering(ip, "tcp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept HTTP traffic")
+					_, err = manager.AddFiltering(ip, "tcp", nil, port, fw.RuleDirectionOUT, fw.ActionAccept, "", "accept HTTP traffic")
 				} else {
-					_, err = manager.AddPeerFiltering(ip, "tcp", nil, port, fw.RuleDirectionIN, fw.ActionAccept, "", "accept HTTP traffic")
+					_, err = manager.AddFiltering(ip, "tcp", nil, port, fw.RuleDirectionIN, fw.ActionAccept, "", "accept HTTP traffic")
 				}
 
 				require.NoError(t, err, "failed to add rule")

client/iface/configurer/err.go

@@ -1,5 +0,0 @@
-package configurer
-
-import "errors"
-
-var ErrPeerNotFound = errors.New("peer not found")

client/iface/configurer/wgstats.go

@@ -1,9 +0,0 @@
-package configurer
-
-import "time"
-
-type WGStats struct {
-	LastHandshake time.Time
-	TxBytes       int64
-	RxBytes       int64
-}

client/iface/device.go

@@ -1,18 +0,0 @@
-//go:build !android
-
-package iface
-
-import (
-	"github.com/netbirdio/netbird/client/iface/bind"
-	"github.com/netbirdio/netbird/client/iface/device"
-)
-
-type WGTunDevice interface {
-	Create() (device.WGConfigurer, error)
-	Up() (*bind.UniversalUDPMuxDefault, error)
-	UpdateAddr(address WGAddress) error
-	WgAddress() WGAddress
-	DeviceName() string
-	Close() error
-	FilteredDevice() *device.FilteredDevice
-}

client/iface/device/interface.go

@@ -1,20 +0,0 @@
-package device
-
-import (
-	"net"
-	"time"
-
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-
-	"github.com/netbirdio/netbird/client/iface/configurer"
-)
-
-type WGConfigurer interface {
-	ConfigureInterface(privateKey string, port int) error
-	UpdatePeer(peerKey string, allowedIps string, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error
-	RemovePeer(peerKey string) error
-	AddAllowedIP(peerKey string, allowedIP string) error
-	RemoveAllowedIP(peerKey string, allowedIP string) error
-	Close()
-	GetStats(peerKey string) (configurer.WGStats, error)
-}

client/iface/device/wg_log.go

@@ -1,15 +0,0 @@
-package device
-
-import (
-	"os"
-
-	"golang.zx2c4.com/wireguard/device"
-)
-
-func wgLogLevel() int {
-	if os.Getenv("NB_WG_DEBUG") == "true" {
-		return device.LogLevelVerbose
-	} else {
-		return device.LogLevelSilent
-	}
-}

client/iface/device/windows_guid.go

@@ -1,4 +0,0 @@
-package device
-
-// CustomWindowsGUIDString is a custom GUID string for the interface
-var CustomWindowsGUIDString string

client/iface/device_android.go

@@ -1,16 +0,0 @@
-package iface
-
-import (
-	"github.com/netbirdio/netbird/client/iface/bind"
-	"github.com/netbirdio/netbird/client/iface/device"
-)
-
-type WGTunDevice interface {
-	Create(routes []string, dns string, searchDomains []string) (device.WGConfigurer, error)
-	Up() (*bind.UniversalUDPMuxDefault, error)
-	UpdateAddr(address WGAddress) error
-	WgAddress() WGAddress
-	DeviceName() string
-	Close() error
-	FilteredDevice() *device.FilteredDevice
-}

client/iface/iface_darwin.go

@@ -1,67 +0,0 @@
-//go:build !ios
-
-package iface
-
-import (
-	"fmt"
-	"time"
-
-	"github.com/cenkalti/backoff/v4"
-	"github.com/pion/transport/v3"
-
-	"github.com/netbirdio/netbird/client/iface/bind"
-	"github.com/netbirdio/netbird/client/iface/device"
-	"github.com/netbirdio/netbird/client/iface/netstack"
-)
-
-// NewWGIFace Creates a new WireGuard interface instance
-func NewWGIFace(iFaceName string, address string, wgPort int, wgPrivKey string, mtu int, transportNet transport.Net, _ *device.MobileIFaceArguments, filterFn bind.FilterFn) (*WGIface, error) {
-	wgAddress, err := device.ParseWGAddress(address)
-	if err != nil {
-		return nil, err
-	}
-
-	wgIFace := &WGIface{
-		userspaceBind: true,
-	}
-
-	if netstack.IsEnabled() {
-		wgIFace.tun = device.NewNetstackDevice(iFaceName, wgAddress, wgPort, wgPrivKey, mtu, transportNet, netstack.ListenAddr(), filterFn)
-		return wgIFace, nil
-	}
-
-	wgIFace.tun = device.NewTunDevice(iFaceName, wgAddress, wgPort, wgPrivKey, mtu, transportNet, filterFn)
-
-	return wgIFace, nil
-}
-
-// CreateOnAndroid this function make sense on mobile only
-func (w *WGIface) CreateOnAndroid([]string, string, []string) error {
-	return fmt.Errorf("this function has not implemented on this platform")
-}
-
-// Create creates a new Wireguard interface, sets a given IP and brings it up.
-// Will reuse an existing one.
-// this function is different on Android
-func (w *WGIface) Create() error {
-	w.mu.Lock()
-	defer w.mu.Unlock()
-
-	backOff := &backoff.ExponentialBackOff{
-		InitialInterval: 20 * time.Millisecond,
-		MaxElapsedTime:  500 * time.Millisecond,
-		Stop:            backoff.Stop,
-		Clock:           backoff.SystemClock,
-	}
-
-	operation := func() error {
-		cfgr, err := w.tun.Create()
-		if err != nil {
-			return err
-		}
-		w.configurer = cfgr
-		return nil
-	}
-
-	return backoff.Retry(operation, backOff)
-}

client/iface/iface_destroy_bsd.go

@@ -1,17 +0,0 @@
-//go:build darwin || dragonfly || freebsd || netbsd || openbsd
-
-package iface
-
-import (
-	"fmt"
-	"os/exec"
-)
-
-func (w *WGIface) Destroy() error {
-	out, err := exec.Command("ifconfig", w.Name(), "destroy").CombinedOutput()
-	if err != nil {
-		return fmt.Errorf("failed to remove interface %s: %w - %s", w.Name(), err, out)
-	}
-
-	return nil
-}

client/iface/iface_destroy_linux.go

@@ -1,22 +0,0 @@
-//go:build linux && !android
-
-package iface
-
-import (
-	"fmt"
-
-	"github.com/vishvananda/netlink"
-)
-
-func (w *WGIface) Destroy() error {
-	link, err := netlink.LinkByName(w.Name())
-	if err != nil {
-		return fmt.Errorf("failed to get link by name %s: %w", w.Name(), err)
-	}
-
-	if err := netlink.LinkDel(link); err != nil {
-		return fmt.Errorf("failed to delete link %s: %w", w.Name(), err)
-	}
-
-	return nil
-}

client/iface/iface_destroy_mobile.go

@@ -1,9 +0,0 @@
-//go:build android || (ios && !darwin)
-
-package iface
-
-import "errors"
-
-func (w *WGIface) Destroy() error {
-	return errors.New("not supported on mobile")
-}

client/iface/iface_destroy_windows.go

@@ -1,32 +0,0 @@
-//go:build windows
-
-package iface
-
-import (
-	"fmt"
-	"os/exec"
-
-	log "github.com/sirupsen/logrus"
-)
-
-func (w *WGIface) Destroy() error {
-	netshCmd := GetSystem32Command("netsh")
-	out, err := exec.Command(netshCmd, "interface", "set", "interface", w.Name(), "admin=disable").CombinedOutput()
-	if err != nil {
-		return fmt.Errorf("failed to remove interface %s: %w - %s", w.Name(), err, out)
-	}
-	return nil
-}
-
-// GetSystem32Command checks if a command can be found in the system path and returns it. In case it can't find it
-// in the path it will return the full path of a command assuming C:\windows\system32 as the base path.
-func GetSystem32Command(command string) string {
-	_, err := exec.LookPath(command)
-	if err == nil {
-		return command
-	}
-
-	log.Tracef("Command %s not found in PATH, using C:\\windows\\system32\\%s.exe path", command, command)
-
-	return "C:\\windows\\system32\\" + command + ".exe"
-}

client/iface/iface_moc.go

@@ -1,105 +0,0 @@
-package iface
-
-import (
-	"net"
-	"time"
-
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-
-	"github.com/netbirdio/netbird/client/iface/bind"
-	"github.com/netbirdio/netbird/client/iface/configurer"
-	"github.com/netbirdio/netbird/client/iface/device"
-)
-
-type MockWGIface struct {
-	CreateFunc                 func() error
-	CreateOnAndroidFunc        func(routeRange []string, ip string, domains []string) error
-	IsUserspaceBindFunc        func() bool
-	NameFunc                   func() string
-	AddressFunc                func() device.WGAddress
-	ToInterfaceFunc            func() *net.Interface
-	UpFunc                     func() (*bind.UniversalUDPMuxDefault, error)
-	UpdateAddrFunc             func(newAddr string) error
-	UpdatePeerFunc             func(peerKey string, allowedIps string, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error
-	RemovePeerFunc             func(peerKey string) error
-	AddAllowedIPFunc           func(peerKey string, allowedIP string) error
-	RemoveAllowedIPFunc        func(peerKey string, allowedIP string) error
-	CloseFunc                  func() error
-	SetFilterFunc              func(filter device.PacketFilter) error
-	GetFilterFunc              func() device.PacketFilter
-	GetDeviceFunc              func() *device.FilteredDevice
-	GetStatsFunc               func(peerKey string) (configurer.WGStats, error)
-	GetInterfaceGUIDStringFunc func() (string, error)
-}
-
-func (m *MockWGIface) GetInterfaceGUIDString() (string, error) {
-	return m.GetInterfaceGUIDStringFunc()
-}
-
-func (m *MockWGIface) Create() error {
-	return m.CreateFunc()
-}
-
-func (m *MockWGIface) CreateOnAndroid(routeRange []string, ip string, domains []string) error {
-	return m.CreateOnAndroidFunc(routeRange, ip, domains)
-}
-
-func (m *MockWGIface) IsUserspaceBind() bool {
-	return m.IsUserspaceBindFunc()
-}
-
-func (m *MockWGIface) Name() string {
-	return m.NameFunc()
-}
-
-func (m *MockWGIface) Address() device.WGAddress {
-	return m.AddressFunc()
-}
-
-func (m *MockWGIface) ToInterface() *net.Interface {
-	return m.ToInterfaceFunc()
-}
-
-func (m *MockWGIface) Up() (*bind.UniversalUDPMuxDefault, error) {
-	return m.UpFunc()
-}
-
-func (m *MockWGIface) UpdateAddr(newAddr string) error {
-	return m.UpdateAddrFunc(newAddr)
-}
-
-func (m *MockWGIface) UpdatePeer(peerKey string, allowedIps string, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error {
-	return m.UpdatePeerFunc(peerKey, allowedIps, keepAlive, endpoint, preSharedKey)
-}
-
-func (m *MockWGIface) RemovePeer(peerKey string) error {
-	return m.RemovePeerFunc(peerKey)
-}
-
-func (m *MockWGIface) AddAllowedIP(peerKey string, allowedIP string) error {
-	return m.AddAllowedIPFunc(peerKey, allowedIP)
-}
-
-func (m *MockWGIface) RemoveAllowedIP(peerKey string, allowedIP string) error {
-	return m.RemoveAllowedIPFunc(peerKey, allowedIP)
-}
-
-func (m *MockWGIface) Close() error {
-	return m.CloseFunc()
-}
-
-func (m *MockWGIface) SetFilter(filter device.PacketFilter) error {
-	return m.SetFilterFunc(filter)
-}
-
-func (m *MockWGIface) GetFilter() device.PacketFilter {
-	return m.GetFilterFunc()
-}
-
-func (m *MockWGIface) GetDevice() *device.FilteredDevice {
-	return m.GetDeviceFunc()
-}
-
-func (m *MockWGIface) GetStats(peerKey string) (configurer.WGStats, error) {
-	return m.GetStatsFunc(peerKey)
-}

client/iface/iwginterface.go

@@ -1,34 +0,0 @@
-//go:build !windows
-
-package iface
-
-import (
-	"net"
-	"time"
-
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-
-	"github.com/netbirdio/netbird/client/iface/bind"
-	"github.com/netbirdio/netbird/client/iface/configurer"
-	"github.com/netbirdio/netbird/client/iface/device"
-)
-
-type IWGIface interface {
-	Create() error
-	CreateOnAndroid(routeRange []string, ip string, domains []string) error
-	IsUserspaceBind() bool
-	Name() string
-	Address() device.WGAddress
-	ToInterface() *net.Interface
-	Up() (*bind.UniversalUDPMuxDefault, error)
-	UpdateAddr(newAddr string) error
-	UpdatePeer(peerKey string, allowedIps string, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error
-	RemovePeer(peerKey string) error
-	AddAllowedIP(peerKey string, allowedIP string) error
-	RemoveAllowedIP(peerKey string, allowedIP string) error
-	Close() error
-	SetFilter(filter device.PacketFilter) error
-	GetFilter() device.PacketFilter
-	GetDevice() *device.FilteredDevice
-	GetStats(peerKey string) (configurer.WGStats, error)
-}

client/iface/iwginterface_windows.go

@@ -1,33 +0,0 @@
-package iface
-
-import (
-	"net"
-	"time"
-
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-
-	"github.com/netbirdio/netbird/client/iface/bind"
-	"github.com/netbirdio/netbird/client/iface/configurer"
-	"github.com/netbirdio/netbird/client/iface/device"
-)
-
-type IWGIface interface {
-	Create() error
-	CreateOnAndroid(routeRange []string, ip string, domains []string) error
-	IsUserspaceBind() bool
-	Name() string
-	Address() device.WGAddress
-	ToInterface() *net.Interface
-	Up() (*bind.UniversalUDPMuxDefault, error)
-	UpdateAddr(newAddr string) error
-	UpdatePeer(peerKey string, allowedIps string, keepAlive time.Duration, endpoint *net.UDPAddr, preSharedKey *wgtypes.Key) error
-	RemovePeer(peerKey string) error
-	AddAllowedIP(peerKey string, allowedIP string) error
-	RemoveAllowedIP(peerKey string, allowedIP string) error
-	Close() error
-	SetFilter(filter device.PacketFilter) error
-	GetFilter() device.PacketFilter
-	GetDevice() *device.FilteredDevice
-	GetStats(peerKey string) (configurer.WGStats, error)
-	GetInterfaceGUIDString() (string, error)
-}

client/internal/acl/id/id.go

@@ -1,25 +0,0 @@
-package id
-
-import (
-	"fmt"
-	"net/netip"
-
-	"github.com/netbirdio/netbird/client/firewall/manager"
-)
-
-type RuleID string
-
-func (r RuleID) GetRuleID() string {
-	return string(r)
-}
-
-func GenerateRouteRuleKey(
-	sources []netip.Prefix,
-	destination netip.Prefix,
-	proto manager.Protocol,
-	sPort *manager.Port,
-	dPort *manager.Port,
-	action manager.Action,
-) RuleID {
-	return RuleID(fmt.Sprintf("%s-%s-%s-%s-%s-%d", sources, destination, proto, sPort, dPort, action))
-}

client/internal/acl/manager.go

@@ -5,7 +5,6 @@ import (
 	"encoding/hex"
 	"fmt"
 	"net"
-	"net/netip"
 	"strconv"
 	"sync"
 	"time"
@@ -13,7 +12,6 @@ import (
 	log "github.com/sirupsen/logrus"
 
 	firewall "github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/internal/acl/id"
 	"github.com/netbirdio/netbird/client/ssh"
 	mgmProto "github.com/netbirdio/netbird/management/proto"
 )
@@ -25,18 +23,16 @@ type Manager interface {
 
 // DefaultManager uses firewall manager to handle
 type DefaultManager struct {
-	firewall       firewall.Manager
-	ipsetCounter   int
-	peerRulesPairs map[id.RuleID][]firewall.Rule
-	routeRules     map[id.RuleID]struct{}
-	mutex          sync.Mutex
+	firewall     firewall.Manager
+	ipsetCounter int
+	rulesPairs   map[string][]firewall.Rule
+	mutex        sync.Mutex
 }
 
 func NewDefaultManager(fm firewall.Manager) *DefaultManager {
 	return &DefaultManager{
-		firewall:       fm,
-		peerRulesPairs: make(map[id.RuleID][]firewall.Rule),
-		routeRules:     make(map[id.RuleID]struct{}),
+		firewall:   fm,
+		rulesPairs: make(map[string][]firewall.Rule),
 	}
 }
 
@@ -50,7 +46,7 @@ func (d *DefaultManager) ApplyFiltering(networkMap *mgmProto.NetworkMap) {
 	start := time.Now()
 	defer func() {
 		total := 0
-		for _, pairs := range d.peerRulesPairs {
+		for _, pairs := range d.rulesPairs {
 			total += len(pairs)
 		}
 		log.Infof(
@@ -63,34 +59,21 @@ func (d *DefaultManager) ApplyFiltering(networkMap *mgmProto.NetworkMap) {
 		return
 	}
 
-	d.applyPeerACLs(networkMap)
+	defer func() {
+		if err := d.firewall.Flush(); err != nil {
+			log.Error("failed to flush firewall rules: ", err)
+		}
+	}()
 
-	// If we got empty rules list but management did not set the networkMap.FirewallRulesIsEmpty flag,
-	// then the mgmt server is older than the client, and we need to allow all traffic for routes
-	isLegacy := len(networkMap.RoutesFirewallRules) == 0 && !networkMap.RoutesFirewallRulesIsEmpty
-	if err := d.firewall.SetLegacyManagement(isLegacy); err != nil {
-		log.Errorf("failed to set legacy management flag: %v", err)
-	}
-
-	if err := d.applyRouteACLs(networkMap.RoutesFirewallRules); err != nil {
-		log.Errorf("Failed to apply route ACLs: %v", err)
-	}
-
-	if err := d.firewall.Flush(); err != nil {
-		log.Error("failed to flush firewall rules: ", err)
-	}
-}
-
-func (d *DefaultManager) applyPeerACLs(networkMap *mgmProto.NetworkMap) {
 	rules, squashedProtocols := d.squashAcceptRules(networkMap)
 
-	enableSSH := networkMap.PeerConfig != nil &&
+	enableSSH := (networkMap.PeerConfig != nil &&
 		networkMap.PeerConfig.SshConfig != nil &&
-		networkMap.PeerConfig.SshConfig.SshEnabled
-	if _, ok := squashedProtocols[mgmProto.RuleProtocol_ALL]; ok {
+		networkMap.PeerConfig.SshConfig.SshEnabled)
+	if _, ok := squashedProtocols[mgmProto.FirewallRule_ALL]; ok {
 		enableSSH = enableSSH && !ok
 	}
-	if _, ok := squashedProtocols[mgmProto.RuleProtocol_TCP]; ok {
+	if _, ok := squashedProtocols[mgmProto.FirewallRule_TCP]; ok {
 		enableSSH = enableSSH && !ok
 	}
 
@@ -100,9 +83,9 @@ func (d *DefaultManager) applyPeerACLs(networkMap *mgmProto.NetworkMap) {
 	if enableSSH {
 		rules = append(rules, &mgmProto.FirewallRule{
 			PeerIP:    "0.0.0.0",
-			Direction: mgmProto.RuleDirection_IN,
-			Action:    mgmProto.RuleAction_ACCEPT,
-			Protocol:  mgmProto.RuleProtocol_TCP,
+			Direction: mgmProto.FirewallRule_IN,
+			Action:    mgmProto.FirewallRule_ACCEPT,
+			Protocol:  mgmProto.FirewallRule_TCP,
 			Port:      strconv.Itoa(ssh.DefaultSSHPort),
 		})
 	}
@@ -114,20 +97,20 @@ func (d *DefaultManager) applyPeerACLs(networkMap *mgmProto.NetworkMap) {
 		rules = append(rules,
 			&mgmProto.FirewallRule{
 				PeerIP:    "0.0.0.0",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			&mgmProto.FirewallRule{
 				PeerIP:    "0.0.0.0",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 		)
 	}
 
-	newRulePairs := make(map[id.RuleID][]firewall.Rule)
+	newRulePairs := make(map[string][]firewall.Rule)
 	ipsetByRuleSelectors := make(map[string]string)
 
 	for _, r := range rules {
@@ -147,97 +130,29 @@ func (d *DefaultManager) applyPeerACLs(networkMap *mgmProto.NetworkMap) {
 			break
 		}
 		if len(rules) > 0 {
-			d.peerRulesPairs[pairID] = rulePair
+			d.rulesPairs[pairID] = rulePair
 			newRulePairs[pairID] = rulePair
 		}
 	}
 
-	for pairID, rules := range d.peerRulesPairs {
+	for pairID, rules := range d.rulesPairs {
 		if _, ok := newRulePairs[pairID]; !ok {
 			for _, rule := range rules {
-				if err := d.firewall.DeletePeerRule(rule); err != nil {
-					log.Errorf("failed to delete peer firewall rule: %v", err)
+				if err := d.firewall.DeleteRule(rule); err != nil {
+					log.Errorf("failed to delete firewall rule: %v", err)
 					continue
 				}
 			}
-			delete(d.peerRulesPairs, pairID)
+			delete(d.rulesPairs, pairID)
 		}
 	}
-	d.peerRulesPairs = newRulePairs
-}
-
-func (d *DefaultManager) applyRouteACLs(rules []*mgmProto.RouteFirewallRule) error {
-	var newRouteRules = make(map[id.RuleID]struct{})
-	for _, rule := range rules {
-		id, err := d.applyRouteACL(rule)
-		if err != nil {
-			return fmt.Errorf("apply route ACL: %w", err)
-		}
-		newRouteRules[id] = struct{}{}
-	}
-
-	for id := range d.routeRules {
-		if _, ok := newRouteRules[id]; !ok {
-			if err := d.firewall.DeleteRouteRule(id); err != nil {
-				log.Errorf("failed to delete route firewall rule: %v", err)
-				continue
-			}
-			delete(d.routeRules, id)
-		}
-	}
-	d.routeRules = newRouteRules
-	return nil
-}
-
-func (d *DefaultManager) applyRouteACL(rule *mgmProto.RouteFirewallRule) (id.RuleID, error) {
-	if len(rule.SourceRanges) == 0 {
-		return "", fmt.Errorf("source ranges is empty")
-	}
-
-	var sources []netip.Prefix
-	for _, sourceRange := range rule.SourceRanges {
-		source, err := netip.ParsePrefix(sourceRange)
-		if err != nil {
-			return "", fmt.Errorf("parse source range: %w", err)
-		}
-		sources = append(sources, source)
-	}
-
-	var destination netip.Prefix
-	if rule.IsDynamic {
-		destination = getDefault(sources[0])
-	} else {
-		var err error
-		destination, err = netip.ParsePrefix(rule.Destination)
-		if err != nil {
-			return "", fmt.Errorf("parse destination: %w", err)
-		}
-	}
-
-	protocol, err := convertToFirewallProtocol(rule.Protocol)
-	if err != nil {
-		return "", fmt.Errorf("invalid protocol: %w", err)
-	}
-
-	action, err := convertFirewallAction(rule.Action)
-	if err != nil {
-		return "", fmt.Errorf("invalid action: %w", err)
-	}
-
-	dPorts := convertPortInfo(rule.PortInfo)
-
-	addedRule, err := d.firewall.AddRouteFiltering(sources, destination, protocol, nil, dPorts, action)
-	if err != nil {
-		return "", fmt.Errorf("add route rule: %w", err)
-	}
-
-	return id.RuleID(addedRule.GetRuleID()), nil
+	d.rulesPairs = newRulePairs
 }
 
 func (d *DefaultManager) protoRuleToFirewallRule(
 	r *mgmProto.FirewallRule,
 	ipsetName string,
-) (id.RuleID, []firewall.Rule, error) {
+) (string, []firewall.Rule, error) {
 	ip := net.ParseIP(r.PeerIP)
 	if ip == nil {
 		return "", nil, fmt.Errorf("invalid IP address, skipping firewall rule")
@@ -264,16 +179,16 @@ func (d *DefaultManager) protoRuleToFirewallRule(
 		}
 	}
 
-	ruleID := d.getPeerRuleID(ip, protocol, int(r.Direction), port, action, "")
-	if rulesPair, ok := d.peerRulesPairs[ruleID]; ok {
+	ruleID := d.getRuleID(ip, protocol, int(r.Direction), port, action, "")
+	if rulesPair, ok := d.rulesPairs[ruleID]; ok {
 		return ruleID, rulesPair, nil
 	}
 
 	var rules []firewall.Rule
 	switch r.Direction {
-	case mgmProto.RuleDirection_IN:
+	case mgmProto.FirewallRule_IN:
 		rules, err = d.addInRules(ip, protocol, port, action, ipsetName, "")
-	case mgmProto.RuleDirection_OUT:
+	case mgmProto.FirewallRule_OUT:
 		rules, err = d.addOutRules(ip, protocol, port, action, ipsetName, "")
 	default:
 		return "", nil, fmt.Errorf("invalid direction, skipping firewall rule")
@@ -295,7 +210,7 @@ func (d *DefaultManager) addInRules(
 	comment string,
 ) ([]firewall.Rule, error) {
 	var rules []firewall.Rule
-	rule, err := d.firewall.AddPeerFiltering(
+	rule, err := d.firewall.AddFiltering(
 		ip, protocol, nil, port, firewall.RuleDirectionIN, action, ipsetName, comment)
 	if err != nil {
 		return nil, fmt.Errorf("failed to add firewall rule: %v", err)
@@ -306,7 +221,7 @@ func (d *DefaultManager) addInRules(
 		return rules, nil
 	}
 
-	rule, err = d.firewall.AddPeerFiltering(
+	rule, err = d.firewall.AddFiltering(
 		ip, protocol, port, nil, firewall.RuleDirectionOUT, action, ipsetName, comment)
 	if err != nil {
 		return nil, fmt.Errorf("failed to add firewall rule: %v", err)
@@ -324,7 +239,7 @@ func (d *DefaultManager) addOutRules(
 	comment string,
 ) ([]firewall.Rule, error) {
 	var rules []firewall.Rule
-	rule, err := d.firewall.AddPeerFiltering(
+	rule, err := d.firewall.AddFiltering(
 		ip, protocol, nil, port, firewall.RuleDirectionOUT, action, ipsetName, comment)
 	if err != nil {
 		return nil, fmt.Errorf("failed to add firewall rule: %v", err)
@@ -335,7 +250,7 @@ func (d *DefaultManager) addOutRules(
 		return rules, nil
 	}
 
-	rule, err = d.firewall.AddPeerFiltering(
+	rule, err = d.firewall.AddFiltering(
 		ip, protocol, port, nil, firewall.RuleDirectionIN, action, ipsetName, comment)
 	if err != nil {
 		return nil, fmt.Errorf("failed to add firewall rule: %v", err)
@@ -344,21 +259,21 @@ func (d *DefaultManager) addOutRules(
 	return append(rules, rule...), nil
 }
 
-// getPeerRuleID() returns unique ID for the rule based on its parameters.
-func (d *DefaultManager) getPeerRuleID(
+// getRuleID() returns unique ID for the rule based on its parameters.
+func (d *DefaultManager) getRuleID(
 	ip net.IP,
 	proto firewall.Protocol,
 	direction int,
 	port *firewall.Port,
 	action firewall.Action,
 	comment string,
-) id.RuleID {
+) string {
 	idStr := ip.String() + string(proto) + strconv.Itoa(direction) + strconv.Itoa(int(action)) + comment
 	if port != nil {
 		idStr += port.String()
 	}
 
-	return id.RuleID(hex.EncodeToString(md5.New().Sum([]byte(idStr))))
+	return hex.EncodeToString(md5.New().Sum([]byte(idStr)))
 }
 
 // squashAcceptRules does complex logic to convert many rules which allows connection by traffic type
@@ -368,7 +283,7 @@ func (d *DefaultManager) getPeerRuleID(
 // but other has port definitions or has drop policy.
 func (d *DefaultManager) squashAcceptRules(
 	networkMap *mgmProto.NetworkMap,
-) ([]*mgmProto.FirewallRule, map[mgmProto.RuleProtocol]struct{}) {
+) ([]*mgmProto.FirewallRule, map[mgmProto.FirewallRuleProtocol]struct{}) {
 	totalIPs := 0
 	for _, p := range append(networkMap.RemotePeers, networkMap.OfflinePeers...) {
 		for range p.AllowedIps {
@@ -376,14 +291,14 @@ func (d *DefaultManager) squashAcceptRules(
 		}
 	}
 
-	type protoMatch map[mgmProto.RuleProtocol]map[string]int
+	type protoMatch map[mgmProto.FirewallRuleProtocol]map[string]int
 
 	in := protoMatch{}
 	out := protoMatch{}
 
 	// trace which type of protocols was squashed
 	squashedRules := []*mgmProto.FirewallRule{}
-	squashedProtocols := map[mgmProto.RuleProtocol]struct{}{}
+	squashedProtocols := map[mgmProto.FirewallRuleProtocol]struct{}{}
 
 	// this function we use to do calculation, can we squash the rules by protocol or not.
 	// We summ amount of Peers IP for given protocol we found in original rules list.
@@ -393,7 +308,7 @@ func (d *DefaultManager) squashAcceptRules(
 	//
 	// We zeroed this to notify squash function that this protocol can't be squashed.
 	addRuleToCalculationMap := func(i int, r *mgmProto.FirewallRule, protocols protoMatch) {
-		drop := r.Action == mgmProto.RuleAction_DROP || r.Port != ""
+		drop := r.Action == mgmProto.FirewallRule_DROP || r.Port != ""
 		if drop {
 			protocols[r.Protocol] = map[string]int{}
 			return
@@ -421,7 +336,7 @@ func (d *DefaultManager) squashAcceptRules(
 
 	for i, r := range networkMap.FirewallRules {
 		// calculate squash for different directions
-		if r.Direction == mgmProto.RuleDirection_IN {
+		if r.Direction == mgmProto.FirewallRule_IN {
 			addRuleToCalculationMap(i, r, in)
 		} else {
 			addRuleToCalculationMap(i, r, out)
@@ -430,14 +345,14 @@ func (d *DefaultManager) squashAcceptRules(
 
 	// order of squashing by protocol is important
 	// only for their first element ALL, it must be done first
-	protocolOrders := []mgmProto.RuleProtocol{
-		mgmProto.RuleProtocol_ALL,
-		mgmProto.RuleProtocol_ICMP,
-		mgmProto.RuleProtocol_TCP,
-		mgmProto.RuleProtocol_UDP,
+	protocolOrders := []mgmProto.FirewallRuleProtocol{
+		mgmProto.FirewallRule_ALL,
+		mgmProto.FirewallRule_ICMP,
+		mgmProto.FirewallRule_TCP,
+		mgmProto.FirewallRule_UDP,
 	}
 
-	squash := func(matches protoMatch, direction mgmProto.RuleDirection) {
+	squash := func(matches protoMatch, direction mgmProto.FirewallRuleDirection) {
 		for _, protocol := range protocolOrders {
 			if ipset, ok := matches[protocol]; !ok || len(ipset) != totalIPs || len(ipset) < 2 {
 				// don't squash if :
@@ -450,12 +365,12 @@ func (d *DefaultManager) squashAcceptRules(
 			squashedRules = append(squashedRules, &mgmProto.FirewallRule{
 				PeerIP:    "0.0.0.0",
 				Direction: direction,
-				Action:    mgmProto.RuleAction_ACCEPT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
 				Protocol:  protocol,
 			})
 			squashedProtocols[protocol] = struct{}{}
 
-			if protocol == mgmProto.RuleProtocol_ALL {
+			if protocol == mgmProto.FirewallRule_ALL {
 				// if we have ALL traffic type squashed rule
 				// it allows all other type of traffic, so we can stop processing
 				break
@@ -463,11 +378,11 @@ func (d *DefaultManager) squashAcceptRules(
 		}
 	}
 
-	squash(in, mgmProto.RuleDirection_IN)
-	squash(out, mgmProto.RuleDirection_OUT)
+	squash(in, mgmProto.FirewallRule_IN)
+	squash(out, mgmProto.FirewallRule_OUT)
 
 	// if all protocol was squashed everything is allow and we can ignore all other rules
-	if _, ok := squashedProtocols[mgmProto.RuleProtocol_ALL]; ok {
+	if _, ok := squashedProtocols[mgmProto.FirewallRule_ALL]; ok {
 		return squashedRules, squashedProtocols
 	}
 
@@ -497,26 +412,26 @@ func (d *DefaultManager) getRuleGroupingSelector(rule *mgmProto.FirewallRule) st
 	return fmt.Sprintf("%v:%v:%v:%s", strconv.Itoa(int(rule.Direction)), rule.Action, rule.Protocol, rule.Port)
 }
 
-func (d *DefaultManager) rollBack(newRulePairs map[id.RuleID][]firewall.Rule) {
+func (d *DefaultManager) rollBack(newRulePairs map[string][]firewall.Rule) {
 	log.Debugf("rollback ACL to previous state")
 	for _, rules := range newRulePairs {
 		for _, rule := range rules {
-			if err := d.firewall.DeletePeerRule(rule); err != nil {
+			if err := d.firewall.DeleteRule(rule); err != nil {
 				log.Errorf("failed to delete new firewall rule (id: %v) during rollback: %v", rule.GetRuleID(), err)
 			}
 		}
 	}
 }
 
-func convertToFirewallProtocol(protocol mgmProto.RuleProtocol) (firewall.Protocol, error) {
+func convertToFirewallProtocol(protocol mgmProto.FirewallRuleProtocol) (firewall.Protocol, error) {
 	switch protocol {
-	case mgmProto.RuleProtocol_TCP:
+	case mgmProto.FirewallRule_TCP:
 		return firewall.ProtocolTCP, nil
-	case mgmProto.RuleProtocol_UDP:
+	case mgmProto.FirewallRule_UDP:
 		return firewall.ProtocolUDP, nil
-	case mgmProto.RuleProtocol_ICMP:
+	case mgmProto.FirewallRule_ICMP:
 		return firewall.ProtocolICMP, nil
-	case mgmProto.RuleProtocol_ALL:
+	case mgmProto.FirewallRule_ALL:
 		return firewall.ProtocolALL, nil
 	default:
 		return firewall.ProtocolALL, fmt.Errorf("invalid protocol type: %s", protocol.String())
@@ -527,41 +442,13 @@ func shouldSkipInvertedRule(protocol firewall.Protocol, port *firewall.Port) boo
 	return protocol == firewall.ProtocolALL || protocol == firewall.ProtocolICMP || port == nil
 }
 
-func convertFirewallAction(action mgmProto.RuleAction) (firewall.Action, error) {
+func convertFirewallAction(action mgmProto.FirewallRuleAction) (firewall.Action, error) {
 	switch action {
-	case mgmProto.RuleAction_ACCEPT:
+	case mgmProto.FirewallRule_ACCEPT:
 		return firewall.ActionAccept, nil
-	case mgmProto.RuleAction_DROP:
+	case mgmProto.FirewallRule_DROP:
 		return firewall.ActionDrop, nil
 	default:
 		return firewall.ActionDrop, fmt.Errorf("invalid action type: %d", action)
 	}
 }
-
-func convertPortInfo(portInfo *mgmProto.PortInfo) *firewall.Port {
-	if portInfo == nil {
-		return nil
-	}
-
-	if portInfo.GetPort() != 0 {
-		return &firewall.Port{
-			Values: []int{int(portInfo.GetPort())},
-		}
-	}
-
-	if portInfo.GetRange() != nil {
-		return &firewall.Port{
-			IsRange: true,
-			Values:  []int{int(portInfo.GetRange().Start), int(portInfo.GetRange().End)},
-		}
-	}
-
-	return nil
-}
-
-func getDefault(prefix netip.Prefix) netip.Prefix {
-	if prefix.Addr().Is6() {
-		return netip.PrefixFrom(netip.IPv6Unspecified(), 0)
-	}
-	return netip.PrefixFrom(netip.IPv4Unspecified(), 0)
-}

client/internal/acl/manager_test.go

@@ -9,8 +9,8 @@ import (
 
 	"github.com/netbirdio/netbird/client/firewall"
 	"github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/iface"
 	"github.com/netbirdio/netbird/client/internal/acl/mocks"
+	"github.com/netbirdio/netbird/iface"
 	mgmProto "github.com/netbirdio/netbird/management/proto"
 )
 
@@ -19,16 +19,16 @@ func TestDefaultManager(t *testing.T) {
 		FirewallRules: []*mgmProto.FirewallRule{
 			{
 				PeerIP:    "10.93.0.1",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_TCP,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_TCP,
 				Port:      "80",
 			},
 			{
 				PeerIP:    "10.93.0.2",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_DROP,
-				Protocol:  mgmProto.RuleProtocol_UDP,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_DROP,
+				Protocol:  mgmProto.FirewallRule_UDP,
 				Port:      "53",
 			},
 		},
@@ -65,16 +65,16 @@ func TestDefaultManager(t *testing.T) {
 	t.Run("apply firewall rules", func(t *testing.T) {
 		acl.ApplyFiltering(networkMap)
 
-		if len(acl.peerRulesPairs) != 2 {
-			t.Errorf("firewall rules not applied: %v", acl.peerRulesPairs)
+		if len(acl.rulesPairs) != 2 {
+			t.Errorf("firewall rules not applied: %v", acl.rulesPairs)
 			return
 		}
 	})
 
 	t.Run("add extra rules", func(t *testing.T) {
 		existedPairs := map[string]struct{}{}
-		for id := range acl.peerRulesPairs {
-			existedPairs[id.GetRuleID()] = struct{}{}
+		for id := range acl.rulesPairs {
+			existedPairs[id] = struct{}{}
 		}
 
 		// remove first rule
@@ -83,24 +83,24 @@ func TestDefaultManager(t *testing.T) {
 			networkMap.FirewallRules,
 			&mgmProto.FirewallRule{
 				PeerIP:    "10.93.0.3",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_DROP,
-				Protocol:  mgmProto.RuleProtocol_ICMP,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_DROP,
+				Protocol:  mgmProto.FirewallRule_ICMP,
 			},
 		)
 
 		acl.ApplyFiltering(networkMap)
 
 		// we should have one old and one new rule in the existed rules
-		if len(acl.peerRulesPairs) != 2 {
+		if len(acl.rulesPairs) != 2 {
 			t.Errorf("firewall rules not applied")
 			return
 		}
 
 		// check that old rule was removed
 		previousCount := 0
-		for id := range acl.peerRulesPairs {
-			if _, ok := existedPairs[id.GetRuleID()]; ok {
+		for id := range acl.rulesPairs {
+			if _, ok := existedPairs[id]; ok {
 				previousCount++
 			}
 		}
@@ -113,15 +113,15 @@ func TestDefaultManager(t *testing.T) {
 		networkMap.FirewallRules = networkMap.FirewallRules[:0]
 
 		networkMap.FirewallRulesIsEmpty = true
-		if acl.ApplyFiltering(networkMap); len(acl.peerRulesPairs) != 0 {
-			t.Errorf("rules should be empty if FirewallRulesIsEmpty is set, got: %v", len(acl.peerRulesPairs))
+		if acl.ApplyFiltering(networkMap); len(acl.rulesPairs) != 0 {
+			t.Errorf("rules should be empty if FirewallRulesIsEmpty is set, got: %v", len(acl.rulesPairs))
 			return
 		}
 
 		networkMap.FirewallRulesIsEmpty = false
 		acl.ApplyFiltering(networkMap)
-		if len(acl.peerRulesPairs) != 2 {
-			t.Errorf("rules should contain 2 rules if FirewallRulesIsEmpty is not set, got: %v", len(acl.peerRulesPairs))
+		if len(acl.rulesPairs) != 2 {
+			t.Errorf("rules should contain 2 rules if FirewallRulesIsEmpty is not set, got: %v", len(acl.rulesPairs))
 			return
 		}
 	})
@@ -138,51 +138,51 @@ func TestDefaultManagerSquashRules(t *testing.T) {
 		FirewallRules: []*mgmProto.FirewallRule{
 			{
 				PeerIP:    "10.93.0.1",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.2",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.3",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.4",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.1",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.2",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.3",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.4",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 		},
 	}
@@ -199,13 +199,13 @@ func TestDefaultManagerSquashRules(t *testing.T) {
 	case r.PeerIP != "0.0.0.0":
 		t.Errorf("IP should be 0.0.0.0, got: %v", r.PeerIP)
 		return
-	case r.Direction != mgmProto.RuleDirection_IN:
+	case r.Direction != mgmProto.FirewallRule_IN:
 		t.Errorf("direction should be IN, got: %v", r.Direction)
 		return
-	case r.Protocol != mgmProto.RuleProtocol_ALL:
+	case r.Protocol != mgmProto.FirewallRule_ALL:
 		t.Errorf("protocol should be ALL, got: %v", r.Protocol)
 		return
-	case r.Action != mgmProto.RuleAction_ACCEPT:
+	case r.Action != mgmProto.FirewallRule_ACCEPT:
 		t.Errorf("action should be ACCEPT, got: %v", r.Action)
 		return
 	}
@@ -215,13 +215,13 @@ func TestDefaultManagerSquashRules(t *testing.T) {
 	case r.PeerIP != "0.0.0.0":
 		t.Errorf("IP should be 0.0.0.0, got: %v", r.PeerIP)
 		return
-	case r.Direction != mgmProto.RuleDirection_OUT:
+	case r.Direction != mgmProto.FirewallRule_OUT:
 		t.Errorf("direction should be OUT, got: %v", r.Direction)
 		return
-	case r.Protocol != mgmProto.RuleProtocol_ALL:
+	case r.Protocol != mgmProto.FirewallRule_ALL:
 		t.Errorf("protocol should be ALL, got: %v", r.Protocol)
 		return
-	case r.Action != mgmProto.RuleAction_ACCEPT:
+	case r.Action != mgmProto.FirewallRule_ACCEPT:
 		t.Errorf("action should be ACCEPT, got: %v", r.Action)
 		return
 	}
@@ -238,51 +238,51 @@ func TestDefaultManagerSquashRulesNoAffect(t *testing.T) {
 		FirewallRules: []*mgmProto.FirewallRule{
 			{
 				PeerIP:    "10.93.0.1",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.2",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.3",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.4",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_TCP,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_TCP,
 			},
 			{
 				PeerIP:    "10.93.0.1",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.2",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.3",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_ALL,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_ALL,
 			},
 			{
 				PeerIP:    "10.93.0.4",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_UDP,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_UDP,
 			},
 		},
 	}
@@ -308,21 +308,21 @@ func TestDefaultManagerEnableSSHRules(t *testing.T) {
 		FirewallRules: []*mgmProto.FirewallRule{
 			{
 				PeerIP:    "10.93.0.1",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_TCP,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_TCP,
 			},
 			{
 				PeerIP:    "10.93.0.2",
-				Direction: mgmProto.RuleDirection_IN,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_TCP,
+				Direction: mgmProto.FirewallRule_IN,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_TCP,
 			},
 			{
 				PeerIP:    "10.93.0.3",
-				Direction: mgmProto.RuleDirection_OUT,
-				Action:    mgmProto.RuleAction_ACCEPT,
-				Protocol:  mgmProto.RuleProtocol_UDP,
+				Direction: mgmProto.FirewallRule_OUT,
+				Action:    mgmProto.FirewallRule_ACCEPT,
+				Protocol:  mgmProto.FirewallRule_UDP,
 			},
 		},
 	}
@@ -357,8 +357,8 @@ func TestDefaultManagerEnableSSHRules(t *testing.T) {
 
 	acl.ApplyFiltering(networkMap)
 
-	if len(acl.peerRulesPairs) != 4 {
-		t.Errorf("expect 4 rules (last must be SSH), got: %d", len(acl.peerRulesPairs))
+	if len(acl.rulesPairs) != 4 {
+		t.Errorf("expect 4 rules (last must be SSH), got: %d", len(acl.rulesPairs))
 		return
 	}
 }

client/internal/acl/mocks/iface_mapper.go

@@ -8,8 +8,7 @@ import (
 	reflect "reflect"
 
 	gomock "github.com/golang/mock/gomock"
-	iface "github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/iface/device"
+	iface "github.com/netbirdio/netbird/iface"
 )
 
 // MockIFaceMapper is a mock of IFaceMapper interface.
@@ -78,7 +77,7 @@ func (mr *MockIFaceMapperMockRecorder) Name() *gomock.Call {
 }
 
 // SetFilter mocks base method.
-func (m *MockIFaceMapper) SetFilter(arg0 device.PacketFilter) error {
+func (m *MockIFaceMapper) SetFilter(arg0 iface.PacketFilter) error {
 	m.ctrl.T.Helper()
 	ret := m.ctrl.Call(m, "SetFilter", arg0)
 	ret0, _ := ret[0].(error)

client/internal/auth/device_flow.go

@@ -3,7 +3,6 @@ package auth
 import (
 	"context"
 	"encoding/json"
-	"errors"
 	"fmt"
 	"io"
 	"net/http"
@@ -181,7 +180,7 @@ func (d *DeviceAuthorizationFlow) WaitToken(ctx context.Context, info AuthFlowIn
 					continue
 				}
 
-				return TokenInfo{}, errors.New(tokenResponse.ErrorDescription)
+				return TokenInfo{}, fmt.Errorf(tokenResponse.ErrorDescription)
 			}
 
 			tokenInfo := TokenInfo{

client/internal/auth/oauth.go

@@ -69,11 +69,6 @@ func NewOAuthFlow(ctx context.Context, config *internal.Config, isLinuxDesktopCl
 		return authenticateWithDeviceCodeFlow(ctx, config)
 	}
 
-	// On FreeBSD we currently do not support desktop environments and offer only Device Code Flow (#2384)
-	if runtime.GOOS == "freebsd" {
-		return authenticateWithDeviceCodeFlow(ctx, config)
-	}
-
 	pkceFlow, err := authenticateWithPKCEFlow(ctx, config)
 	if err != nil {
 		// fallback to device code flow
@@ -86,7 +81,7 @@ func NewOAuthFlow(ctx context.Context, config *internal.Config, isLinuxDesktopCl
 
 // authenticateWithPKCEFlow initializes the Proof Key for Code Exchange flow auth flow
 func authenticateWithPKCEFlow(ctx context.Context, config *internal.Config) (OAuthFlow, error) {
-	pkceFlowInfo, err := internal.GetPKCEAuthorizationFlowInfo(ctx, config.PrivateKey, config.ManagementURL, config.ClientCertKeyPair)
+	pkceFlowInfo, err := internal.GetPKCEAuthorizationFlowInfo(ctx, config.PrivateKey, config.ManagementURL)
 	if err != nil {
 		return nil, fmt.Errorf("getting pkce authorization flow info failed with error: %v", err)
 	}

client/internal/auth/pkce_flow.go

@@ -4,7 +4,6 @@ import (
 	"context"
 	"crypto/sha256"
 	"crypto/subtle"
-	"crypto/tls"
 	"encoding/base64"
 	"errors"
 	"fmt"
@@ -144,18 +143,6 @@ func (p *PKCEAuthorizationFlow) WaitToken(ctx context.Context, _ AuthFlowInfo) (
 func (p *PKCEAuthorizationFlow) startServer(server *http.Server, tokenChan chan<- *oauth2.Token, errChan chan<- error) {
 	mux := http.NewServeMux()
 	mux.HandleFunc("/", func(w http.ResponseWriter, req *http.Request) {
-		cert := p.providerConfig.ClientCertPair
-		if cert != nil {
-			tr := &http.Transport{
-				TLSClientConfig: &tls.Config{
-					Certificates: []tls.Certificate{*cert},
-				},
-			}
-			sslClient := &http.Client{Transport: tr}
-			ctx := context.WithValue(req.Context(), oauth2.HTTPClient, sslClient)
-			req = req.WithContext(ctx)
-		}
-
 		token, err := p.handleRequest(req)
 		if err != nil {
 			renderPKCEFlowTmpl(w, err)

client/internal/config.go

@@ -2,7 +2,6 @@ package internal
 
 import (
 	"context"
-	"crypto/tls"
 	"fmt"
 	"net/url"
 	"os"
@@ -16,9 +15,9 @@ import (
 	"google.golang.org/grpc/codes"
 	"google.golang.org/grpc/status"
 
-	"github.com/netbirdio/netbird/client/iface"
 	"github.com/netbirdio/netbird/client/internal/routemanager/dynamic"
 	"github.com/netbirdio/netbird/client/ssh"
+	"github.com/netbirdio/netbird/iface"
 	mgm "github.com/netbirdio/netbird/management/client"
 	"github.com/netbirdio/netbird/util"
 )
@@ -58,8 +57,6 @@ type ConfigInput struct {
 	DisableAutoConnect  *bool
 	ExtraIFaceBlackList []string
 	DNSRouteInterval    *time.Duration
-	ClientCertPath      string
-	ClientCertKeyPath   string
 }
 
 // Config Configuration type
@@ -105,23 +102,11 @@ type Config struct {
 
 	// DNSRouteInterval is the interval in which the DNS routes are updated
 	DNSRouteInterval time.Duration
-	//Path to a certificate used for mTLS authentication
-	ClientCertPath string
-
-	//Path to corresponding private key of ClientCertPath
-	ClientCertKeyPath string
-
-	ClientCertKeyPair *tls.Certificate `json:"-"`
 }
 
 // ReadConfig read config file and return with Config. If it is not exists create a new with default values
 func ReadConfig(configPath string) (*Config, error) {
 	if configFileIsExists(configPath) {
-		err := util.EnforcePermission(configPath)
-		if err != nil {
-			log.Errorf("failed to enforce permission on config dir: %v", err)
-		}
-
 		config := &Config{}
 		if _, err := util.ReadJson(configPath, config); err != nil {
 			return nil, err
@@ -164,17 +149,13 @@ func UpdateOrCreateConfig(input ConfigInput) (*Config, error) {
 		if err != nil {
 			return nil, err
 		}
-		err = util.WriteJsonWithRestrictedPermission(input.ConfigPath, cfg)
+		err = WriteOutConfig(input.ConfigPath, cfg)
 		return cfg, err
 	}
 
 	if isPreSharedKeyHidden(input.PreSharedKey) {
 		input.PreSharedKey = nil
 	}
-	err := util.EnforcePermission(input.ConfigPath)
-	if err != nil {
-		log.Errorf("failed to enforce permission on config dir: %v", err)
-	}
 	return update(input)
 }
 
@@ -404,26 +385,6 @@ func (config *Config) apply(input ConfigInput) (updated bool, err error) {
 
 	}
 
-	if input.ClientCertKeyPath != "" {
-		config.ClientCertKeyPath = input.ClientCertKeyPath
-		updated = true
-	}
-
-	if input.ClientCertPath != "" {
-		config.ClientCertPath = input.ClientCertPath
-		updated = true
-	}
-
-	if config.ClientCertPath != "" && config.ClientCertKeyPath != "" {
-		cert, err := tls.LoadX509KeyPair(config.ClientCertPath, config.ClientCertKeyPath)
-		if err != nil {
-			log.Error("Failed to load mTLS cert/key pair: ", err)
-		} else {
-			config.ClientCertKeyPair = &cert
-			log.Info("Loaded client mTLS cert/key pair")
-		}
-	}
-
 	return updated, nil
 }
 

client/internal/connect.go

@@ -17,18 +17,15 @@ import (
 	"google.golang.org/grpc/codes"
 	gstatus "google.golang.org/grpc/status"
 
-	"github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/iface/device"
 	"github.com/netbirdio/netbird/client/internal/dns"
 	"github.com/netbirdio/netbird/client/internal/listener"
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/internal/stdnet"
 	"github.com/netbirdio/netbird/client/ssh"
 	"github.com/netbirdio/netbird/client/system"
+	"github.com/netbirdio/netbird/iface"
 	mgm "github.com/netbirdio/netbird/management/client"
 	mgmProto "github.com/netbirdio/netbird/management/proto"
-	"github.com/netbirdio/netbird/relay/auth/hmac"
-	relayClient "github.com/netbirdio/netbird/relay/client"
 	signal "github.com/netbirdio/netbird/signal/client"
 	"github.com/netbirdio/netbird/util"
 	"github.com/netbirdio/netbird/version"
@@ -58,20 +55,22 @@ func NewConnectClient(
 
 // Run with main logic.
 func (c *ConnectClient) Run() error {
-	return c.run(MobileDependency{}, nil, nil)
+	return c.run(MobileDependency{}, nil, nil, nil, nil)
 }
 
 // RunWithProbes runs the client's main logic with probes attached
 func (c *ConnectClient) RunWithProbes(
-	probes *ProbeHolder,
-	runningChan chan error,
+	mgmProbe *Probe,
+	signalProbe *Probe,
+	relayProbe *Probe,
+	wgProbe *Probe,
 ) error {
-	return c.run(MobileDependency{}, probes, runningChan)
+	return c.run(MobileDependency{}, mgmProbe, signalProbe, relayProbe, wgProbe)
 }
 
 // RunOnAndroid with main logic on mobile system
 func (c *ConnectClient) RunOnAndroid(
-	tunAdapter device.TunAdapter,
+	tunAdapter iface.TunAdapter,
 	iFaceDiscover stdnet.ExternalIFaceDiscover,
 	networkChangeListener listener.NetworkChangeListener,
 	dnsAddresses []string,
@@ -85,7 +84,7 @@ func (c *ConnectClient) RunOnAndroid(
 		HostDNSAddresses:      dnsAddresses,
 		DnsReadyListener:      dnsReadyListener,
 	}
-	return c.run(mobileDependency, nil, nil)
+	return c.run(mobileDependency, nil, nil, nil, nil)
 }
 
 func (c *ConnectClient) RunOniOS(
@@ -101,13 +100,15 @@ func (c *ConnectClient) RunOniOS(
 		NetworkChangeListener: networkChangeListener,
 		DnsManager:            dnsManager,
 	}
-	return c.run(mobileDependency, nil, nil)
+	return c.run(mobileDependency, nil, nil, nil, nil)
 }
 
 func (c *ConnectClient) run(
 	mobileDependency MobileDependency,
-	probes *ProbeHolder,
-	runningChan chan error,
+	mgmProbe *Probe,
+	signalProbe *Probe,
+	relayProbe *Probe,
+	wgProbe *Probe,
 ) error {
 	defer func() {
 		if r := recover(); r != nil {
@@ -159,11 +160,12 @@ func (c *ConnectClient) run(
 	}
 
 	defer c.statusRecorder.ClientStop()
-	runningChanOpen := true
 	operation := func() error {
 		// if context cancelled we not start new backoff cycle
-		if c.isContextCancelled() {
+		select {
+		case <-c.ctx.Done():
 			return nil
+		default:
 		}
 
 		state.Set(StatusConnecting)
@@ -185,7 +187,8 @@ func (c *ConnectClient) run(
 
 		log.Debugf("connected to the Management service %s", c.config.ManagementURL.Host)
 		defer func() {
-			if err = mgmClient.Close(); err != nil {
+			err = mgmClient.Close()
+			if err != nil {
 				log.Warnf("failed to close the Management service client %v", err)
 			}
 		}()
@@ -196,7 +199,6 @@ func (c *ConnectClient) run(
 			log.Debug(err)
 			if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.PermissionDenied) {
 				state.Set(StatusNeedsLogin)
-				_ = c.Stop()
 				return backoff.Permanent(wrapErr(err)) // unrecoverable error
 			}
 			return wrapErr(err)
@@ -206,9 +208,10 @@ func (c *ConnectClient) run(
 		localPeerState := peer.LocalPeerState{
 			IP:              loginResp.GetPeerConfig().GetAddress(),
 			PubKey:          myPrivateKey.PublicKey().String(),
-			KernelInterface: device.WireGuardModuleIsLoaded(),
+			KernelInterface: iface.WireGuardModuleIsLoaded(),
 			FQDN:            loginResp.GetPeerConfig().GetFqdn(),
 		}
+
 		c.statusRecorder.UpdateLocalPeerState(localPeerState)
 
 		signalURL := fmt.Sprintf("%s://%s",
@@ -241,23 +244,6 @@ func (c *ConnectClient) run(
 
 		c.statusRecorder.MarkSignalConnected()
 
-		relayURLs, token := parseRelayInfo(loginResp)
-		relayManager := relayClient.NewManager(engineCtx, relayURLs, myPrivateKey.PublicKey().String())
-		if len(relayURLs) > 0 {
-			if token != nil {
-				if err := relayManager.UpdateToken(token); err != nil {
-					log.Errorf("failed to update token: %s", err)
-					return wrapErr(err)
-				}
-			}
-			log.Infof("connecting to the Relay service(s): %s", strings.Join(relayURLs, ", "))
-			if err = relayManager.Serve(); err != nil {
-				log.Error(err)
-				return wrapErr(err)
-			}
-			c.statusRecorder.SetRelayMgr(relayManager)
-		}
-
 		peerConfig := loginResp.GetPeerConfig()
 
 		engineConfig, err := createEngineConfig(myPrivateKey, c.config, peerConfig)
@@ -269,11 +255,11 @@ func (c *ConnectClient) run(
 		checks := loginResp.GetChecks()
 
 		c.engineMutex.Lock()
-		c.engine = NewEngineWithProbes(engineCtx, cancel, signalClient, mgmClient, relayManager, engineConfig, mobileDependency, c.statusRecorder, probes, checks)
-
+		c.engine = NewEngineWithProbes(engineCtx, cancel, signalClient, mgmClient, engineConfig, mobileDependency, c.statusRecorder, mgmProbe, signalProbe, relayProbe, wgProbe, checks)
 		c.engineMutex.Unlock()
 
-		if err := c.engine.Start(); err != nil {
+		err = c.engine.Start()
+		if err != nil {
 			log.Errorf("error while starting Netbird Connection Engine: %s", err)
 			return wrapErr(err)
 		}
@@ -281,26 +267,17 @@ func (c *ConnectClient) run(
 		log.Infof("Netbird engine started, the IP is: %s", peerConfig.GetAddress())
 		state.Set(StatusConnected)
 
-		if runningChan != nil && runningChanOpen {
-			runningChan <- nil
-			close(runningChan)
-			runningChanOpen = false
-		}
-
 		<-engineCtx.Done()
-		c.engineMutex.Lock()
-		if c.engine != nil && c.engine.wgInterface != nil {
-			log.Infof("ensuring %s is removed, Netbird engine context cancelled", c.engine.wgInterface.Name())
-			if err := c.engine.Stop(); err != nil {
-				log.Errorf("Failed to stop engine: %v", err)
-			}
-			c.engine = nil
-		}
-		c.engineMutex.Unlock()
 		c.statusRecorder.ClientTeardown()
 
 		backOff.Reset()
 
+		err = c.engine.Stop()
+		if err != nil {
+			log.Errorf("failed stopping engine %v", err)
+			return wrapErr(err)
+		}
+
 		log.Info("stopped NetBird client")
 
 		if _, err := state.Status(); errors.Is(err, ErrResetConnection) {
@@ -316,31 +293,13 @@ func (c *ConnectClient) run(
 		log.Debugf("exiting client retry loop due to unrecoverable error: %s", err)
 		if s, ok := gstatus.FromError(err); ok && (s.Code() == codes.PermissionDenied) {
 			state.Set(StatusNeedsLogin)
-			_ = c.Stop()
 		}
 		return err
 	}
 	return nil
 }
 
-func parseRelayInfo(loginResp *mgmProto.LoginResponse) ([]string, *hmac.Token) {
-	relayCfg := loginResp.GetWiretrusteeConfig().GetRelay()
-	if relayCfg == nil {
-		return nil, nil
-	}
-
-	token := &hmac.Token{
-		Payload:   relayCfg.GetTokenPayload(),
-		Signature: relayCfg.GetTokenSignature(),
-	}
-
-	return relayCfg.GetUrls(), token
-}
-
 func (c *ConnectClient) Engine() *Engine {
-	if c == nil {
-		return nil
-	}
 	var e *Engine
 	c.engineMutex.Lock()
 	e = c.engine
@@ -348,28 +307,6 @@ func (c *ConnectClient) Engine() *Engine {
 	return e
 }
 
-func (c *ConnectClient) Stop() error {
-	if c == nil {
-		return nil
-	}
-	c.engineMutex.Lock()
-	defer c.engineMutex.Unlock()
-
-	if c.engine == nil {
-		return nil
-	}
-	return c.engine.Stop()
-}
-
-func (c *ConnectClient) isContextCancelled() bool {
-	select {
-	case <-c.ctx.Done():
-		return true
-	default:
-		return false
-	}
-}
-
 // createEngineConfig converts configuration received from Management Service to EngineConfig
 func createEngineConfig(key wgtypes.Key, config *Config, peerConfig *mgmProto.PeerConfig) (*EngineConfig, error) {
 	nm := false
@@ -460,43 +397,19 @@ func statusRecorderToSignalConnStateNotifier(statusRecorder *peer.Status) signal
 	return notifier
 }
 
-// freePort attempts to determine if the provided port is available, if not it will ask the system for a free port.
-func freePort(initPort int) (int, error) {
+func freePort(start int) (int, error) {
 	addr := net.UDPAddr{}
-	if initPort == 0 {
-		initPort = iface.DefaultWgPort
+	if start == 0 {
+		start = iface.DefaultWgPort
 	}
-
-	addr.Port = initPort
-
-	conn, err := net.ListenUDP("udp", &addr)
-	if err == nil {
-		closeConnWithLog(conn)
-		return initPort, nil
-	}
-
-	// if the port is already in use, ask the system for a free port
-	addr.Port = 0
-	conn, err = net.ListenUDP("udp", &addr)
-	if err != nil {
-		return 0, fmt.Errorf("unable to get a free port: %v", err)
-	}
-
-	udpAddr, ok := conn.LocalAddr().(*net.UDPAddr)
-	if !ok {
-		return 0, errors.New("wrong address type when getting a free port")
-	}
-	closeConnWithLog(conn)
-	return udpAddr.Port, nil
-}
-
-func closeConnWithLog(conn *net.UDPConn) {
-	startClosing := time.Now()
-	err := conn.Close()
-	if err != nil {
-		log.Warnf("closing probe port %d failed: %v. NetBird will still attempt to use this port for connection.", conn.LocalAddr().(*net.UDPAddr).Port, err)
-	}
-	if time.Since(startClosing) > time.Second {
-		log.Warnf("closing the testing port %d took %s. Usually it is safe to ignore, but continuous warnings may indicate a problem.", conn.LocalAddr().(*net.UDPAddr).Port, time.Since(startClosing))
+	for x := start; x <= 65535; x++ {
+		addr.Port = x
+		conn, err := net.ListenUDP("udp", &addr)
+		if err != nil {
+			continue
+		}
+		conn.Close()
+		return x, nil
 	}
+	return 0, errors.New("no free ports")
 }

client/internal/connect_test.go

@@ -7,55 +7,51 @@ import (
 
 func Test_freePort(t *testing.T) {
 	tests := []struct {
-		name        string
-		port        int
-		want        int
-		shouldMatch bool
+		name    string
+		port    int
+		want    int
+		wantErr bool
 	}{
 		{
-			name:        "not provided, fallback to default",
-			port:        0,
-			want:        51820,
-			shouldMatch: true,
+			name:    "available",
+			port:    51820,
+			want:    51820,
+			wantErr: false,
 		},
 		{
-			name:        "provided and available",
-			port:        51821,
-			want:        51821,
-			shouldMatch: true,
+			name:    "notavailable",
+			port:    51830,
+			want:    51831,
+			wantErr: false,
 		},
 		{
-			name:        "provided and not available",
-			port:        51830,
-			want:        51830,
-			shouldMatch: false,
+			name:    "noports",
+			port:    65535,
+			want:    0,
+			wantErr: true,
 		},
 	}
-	c1, err := net.ListenUDP("udp", &net.UDPAddr{Port: 51830})
-	if err != nil {
-		t.Errorf("freePort error = %v", err)
-	}
-	defer func(c1 *net.UDPConn) {
-		_ = c1.Close()
-	}(c1)
-
 	for _, tt := range tests {
 
+		c1, err := net.ListenUDP("udp", &net.UDPAddr{Port: 51830})
+		if err != nil {
+			t.Errorf("freePort error = %v", err)
+		}
+		c2, err := net.ListenUDP("udp", &net.UDPAddr{Port: 65535})
+		if err != nil {
+			t.Errorf("freePort error = %v", err)
+		}
 		t.Run(tt.name, func(t *testing.T) {
 			got, err := freePort(tt.port)
-
-			if err != nil {
-				t.Errorf("got an error while getting free port: %v", err)
+			if (err != nil) != tt.wantErr {
+				t.Errorf("freePort() error = %v, wantErr %v", err, tt.wantErr)
+				return
 			}
-
-			if tt.shouldMatch && got != tt.want {
-				t.Errorf("got a different port %v, want %v", got, tt.want)
-			}
-
-			if !tt.shouldMatch && got == tt.want {
-				t.Errorf("got the same port %v, want a different port", tt.want)
+			if got != tt.want {
+				t.Errorf("freePort() = %v, want %v", got, tt.want)
 			}
 		})
-
+		c1.Close()
+		c2.Close()
 	}
 }

client/internal/dns/host.go

@@ -15,12 +15,6 @@ type hostManager interface {
 	restoreUncleanShutdownDNS(storedDNSAddress *netip.Addr) error
 }
 
-type SystemDNSSettings struct {
-	Domains    []string
-	ServerIP   string
-	ServerPort int
-}
-
 type HostDNSConfig struct {
 	Domains    []DomainConfig `json:"domains"`
 	RouteAll   bool           `json:"routeAll"`

client/internal/dns/host_darwin.go

@@ -7,7 +7,6 @@ import (
 	"bytes"
 	"fmt"
 	"io"
-	"net"
 	"net/netip"
 	"os/exec"
 	"strconv"
@@ -19,7 +18,7 @@ import (
 const (
 	netbirdDNSStateKeyFormat            = "State:/Network/Service/NetBird-%s/DNS"
 	globalIPv4State                     = "State:/Network/Global/IPv4"
-	primaryServiceStateKeyFormat        = "State:/Network/Service/%s/DNS"
+	primaryServiceSetupKeyFormat        = "Setup:/Network/Service/%s/DNS"
 	keySupplementalMatchDomains         = "SupplementalMatchDomains"
 	keySupplementalMatchDomainsNoSearch = "SupplementalMatchDomainsNoSearch"
 	keyServerAddresses                  = "ServerAddresses"
@@ -29,12 +28,12 @@ const (
 	scutilPath                          = "/usr/sbin/scutil"
 	searchSuffix                        = "Search"
 	matchSuffix                         = "Match"
-	localSuffix                         = "Local"
 )
 
 type systemConfigurator struct {
-	createdKeys       map[string]struct{}
-	systemDNSSettings SystemDNSSettings
+	// primaryServiceID primary interface in the system. AKA the interface with the default route
+	primaryServiceID string
+	createdKeys      map[string]struct{}
 }
 
 func newHostManager() (hostManager, error) {
@@ -50,6 +49,20 @@ func (s *systemConfigurator) supportCustomPort() bool {
 func (s *systemConfigurator) applyDNSConfig(config HostDNSConfig) error {
 	var err error
 
+	if config.RouteAll {
+		err = s.addDNSSetupForAll(config.ServerIP, config.ServerPort)
+		if err != nil {
+			return fmt.Errorf("add dns setup for all: %w", err)
+		}
+	} else if s.primaryServiceID != "" {
+		err = s.removeKeyFromSystemConfig(getKeyWithInput(primaryServiceSetupKeyFormat, s.primaryServiceID))
+		if err != nil {
+			return fmt.Errorf("remote key from system config: %w", err)
+		}
+		s.primaryServiceID = ""
+		log.Infof("removed %s:%d as main DNS resolver for this peer", config.ServerIP, config.ServerPort)
+	}
+
 	// create a file for unclean shutdown detection
 	if err := createUncleanShutdownIndicator(); err != nil {
 		log.Errorf("failed to create unclean shutdown file: %s", err)
@@ -60,19 +73,6 @@ func (s *systemConfigurator) applyDNSConfig(config HostDNSConfig) error {
 		matchDomains  []string
 	)
 
-	err = s.recordSystemDNSSettings(true)
-	if err != nil {
-		log.Errorf("unable to update record of System's DNS config: %s", err.Error())
-	}
-
-	if config.RouteAll {
-		searchDomains = append(searchDomains, "\"\"")
-		err = s.addLocalDNS()
-		if err != nil {
-			log.Infof("failed to enable split DNS")
-		}
-	}
-
 	for _, dConf := range config.Domains {
 		if dConf.Disabled {
 			continue
@@ -110,17 +110,23 @@ func (s *systemConfigurator) applyDNSConfig(config HostDNSConfig) error {
 }
 
 func (s *systemConfigurator) restoreHostDNS() error {
-	keys := s.getRemovableKeysWithDefaults()
-	for _, key := range keys {
+	lines := ""
+	for key := range s.createdKeys {
+		lines += buildRemoveKeyOperation(key)
 		keyType := "search"
 		if strings.Contains(key, matchSuffix) {
 			keyType = "match"
 		}
 		log.Infof("removing %s domains from system", keyType)
-		err := s.removeKeyFromSystemConfig(key)
-		if err != nil {
-			log.Errorf("failed to remove %s domains from system: %s", keyType, err)
-		}
+	}
+	if s.primaryServiceID != "" {
+		lines += buildRemoveKeyOperation(getKeyWithInput(primaryServiceSetupKeyFormat, s.primaryServiceID))
+		log.Infof("restoring DNS resolver configuration for system")
+	}
+	_, err := runSystemConfigCommand(wrapCommand(lines))
+	if err != nil {
+		log.Errorf("got an error while cleaning the system configuration: %s", err)
+		return fmt.Errorf("clean system: %w", err)
 	}
 
 	if err := removeUncleanShutdownIndicator(); err != nil {
@@ -130,19 +136,6 @@ func (s *systemConfigurator) restoreHostDNS() error {
 	return nil
 }
 
-func (s *systemConfigurator) getRemovableKeysWithDefaults() []string {
-	if len(s.createdKeys) == 0 {
-		// return defaults for startup calls
-		return []string{getKeyWithInput(netbirdDNSStateKeyFormat, searchSuffix), getKeyWithInput(netbirdDNSStateKeyFormat, matchSuffix)}
-	}
-
-	keys := make([]string, 0, len(s.createdKeys))
-	for key := range s.createdKeys {
-		keys = append(keys, key)
-	}
-	return keys
-}
-
 func (s *systemConfigurator) removeKeyFromSystemConfig(key string) error {
 	line := buildRemoveKeyOperation(key)
 	_, err := runSystemConfigCommand(wrapCommand(line))
@@ -155,97 +148,6 @@ func (s *systemConfigurator) removeKeyFromSystemConfig(key string) error {
 	return nil
 }
 
-func (s *systemConfigurator) addLocalDNS() error {
-	if s.systemDNSSettings.ServerIP == "" || len(s.systemDNSSettings.Domains) == 0 {
-		err := s.recordSystemDNSSettings(true)
-		log.Errorf("Unable to get system DNS configuration")
-		return err
-	}
-	localKey := getKeyWithInput(netbirdDNSStateKeyFormat, localSuffix)
-	if s.systemDNSSettings.ServerIP != "" && len(s.systemDNSSettings.Domains) != 0 {
-		err := s.addSearchDomains(localKey, strings.Join(s.systemDNSSettings.Domains, " "), s.systemDNSSettings.ServerIP, s.systemDNSSettings.ServerPort)
-		if err != nil {
-			return fmt.Errorf("couldn't add local network DNS conf: %w", err)
-		}
-	} else {
-		log.Info("Not enabling local DNS server")
-	}
-
-	return nil
-}
-
-func (s *systemConfigurator) recordSystemDNSSettings(force bool) error {
-	if s.systemDNSSettings.ServerIP != "" && len(s.systemDNSSettings.Domains) != 0 && !force {
-		return nil
-	}
-
-	systemDNSSettings, err := s.getSystemDNSSettings()
-	if err != nil {
-		return fmt.Errorf("couldn't get current DNS config: %w", err)
-	}
-	s.systemDNSSettings = systemDNSSettings
-
-	return nil
-}
-
-func (s *systemConfigurator) getSystemDNSSettings() (SystemDNSSettings, error) {
-	primaryServiceKey, _, err := s.getPrimaryService()
-	if err != nil || primaryServiceKey == "" {
-		return SystemDNSSettings{}, fmt.Errorf("couldn't find the primary service key: %w", err)
-	}
-	dnsServiceKey := getKeyWithInput(primaryServiceStateKeyFormat, primaryServiceKey)
-	line := buildCommandLine("show", dnsServiceKey, "")
-	stdinCommands := wrapCommand(line)
-
-	b, err := runSystemConfigCommand(stdinCommands)
-	if err != nil {
-		return SystemDNSSettings{}, fmt.Errorf("sending the command: %w", err)
-	}
-
-	var dnsSettings SystemDNSSettings
-	inSearchDomainsArray := false
-	inServerAddressesArray := false
-
-	scanner := bufio.NewScanner(bytes.NewReader(b))
-	for scanner.Scan() {
-		line := strings.TrimSpace(scanner.Text())
-		switch {
-		case strings.HasPrefix(line, "DomainName :"):
-			domainName := strings.TrimSpace(strings.Split(line, ":")[1])
-			dnsSettings.Domains = append(dnsSettings.Domains, domainName)
-		case line == "SearchDomains : <array> {":
-			inSearchDomainsArray = true
-			continue
-		case line == "ServerAddresses : <array> {":
-			inServerAddressesArray = true
-			continue
-		case line == "}":
-			inSearchDomainsArray = false
-			inServerAddressesArray = false
-		}
-
-		if inSearchDomainsArray {
-			searchDomain := strings.Split(line, " : ")[1]
-			dnsSettings.Domains = append(dnsSettings.Domains, searchDomain)
-		} else if inServerAddressesArray {
-			address := strings.Split(line, " : ")[1]
-			if ip := net.ParseIP(address); ip != nil && ip.To4() != nil {
-				dnsSettings.ServerIP = address
-				inServerAddressesArray = false // Stop reading after finding the first IPv4 address
-			}
-		}
-	}
-
-	if err := scanner.Err(); err != nil {
-		return dnsSettings, err
-	}
-
-	// default to 53 port
-	dnsSettings.ServerPort = 53
-
-	return dnsSettings, nil
-}
-
 func (s *systemConfigurator) addSearchDomains(key, domains string, ip string, port int) error {
 	err := s.addDNSState(key, domains, ip, port, true)
 	if err != nil {
@@ -292,6 +194,23 @@ func (s *systemConfigurator) addDNSState(state, domains, dnsServer string, port
 	return nil
 }
 
+func (s *systemConfigurator) addDNSSetupForAll(dnsServer string, port int) error {
+	primaryServiceKey, existingNameserver, err := s.getPrimaryService()
+	if err != nil || primaryServiceKey == "" {
+		return fmt.Errorf("couldn't find the primary service key: %w", err)
+	}
+
+	err = s.addDNSSetup(getKeyWithInput(primaryServiceSetupKeyFormat, primaryServiceKey), dnsServer, port, existingNameserver)
+	if err != nil {
+		return fmt.Errorf("add dns setup: %w", err)
+	}
+
+	log.Infof("configured %s:%d as main DNS resolver for this peer", dnsServer, port)
+	s.primaryServiceID = primaryServiceKey
+
+	return nil
+}
+
 func (s *systemConfigurator) getPrimaryService() (string, string, error) {
 	line := buildCommandLine("show", globalIPv4State, "")
 	stdinCommands := wrapCommand(line)
@@ -320,6 +239,19 @@ func (s *systemConfigurator) getPrimaryService() (string, string, error) {
 	return primaryService, router, nil
 }
 
+func (s *systemConfigurator) addDNSSetup(setupKey, dnsServer string, port int, existingDNSServer string) error {
+	lines := buildAddCommandLine(keySupplementalMatchDomainsNoSearch, digitSymbol+strconv.Itoa(0))
+	lines += buildAddCommandLine(keyServerAddresses, arraySymbol+dnsServer+" "+existingDNSServer)
+	lines += buildAddCommandLine(keyServerPort, digitSymbol+strconv.Itoa(port))
+	addDomainCommand := buildCreateStateWithOperation(setupKey, lines)
+	stdinCommands := wrapCommand(addDomainCommand)
+	_, err := runSystemConfigCommand(stdinCommands)
+	if err != nil {
+		return fmt.Errorf("applying dns setup, error: %w", err)
+	}
+	return nil
+}
+
 func (s *systemConfigurator) restoreUncleanShutdownDNS(*netip.Addr) error {
 	if err := s.restoreHostDNS(); err != nil {
 		return fmt.Errorf("restoring dns via scutil: %w", err)

client/internal/dns/response_writer_test.go

@@ -9,7 +9,7 @@ import (
 	"github.com/google/gopacket/layers"
 	"github.com/miekg/dns"
 
-	"github.com/netbirdio/netbird/client/iface/mocks"
+	"github.com/netbirdio/netbird/iface/mocks"
 )
 
 func TestResponseWriterLocalAddr(t *testing.T) {

client/internal/dns/server.go

@@ -94,7 +94,7 @@ func NewDefaultServer(
 
 	var dnsService service
 	if wgInterface.IsUserspaceBind() {
-		dnsService = NewServiceViaMemory(wgInterface)
+		dnsService = newServiceViaMemory(wgInterface)
 	} else {
 		dnsService = newServiceViaListener(wgInterface, addrPort)
 	}
@@ -112,7 +112,7 @@ func NewDefaultServerPermanentUpstream(
 	statusRecorder *peer.Status,
 ) *DefaultServer {
 	log.Debugf("host dns address list is: %v", hostsDnsList)
-	ds := newDefaultServer(ctx, wgInterface, NewServiceViaMemory(wgInterface), statusRecorder)
+	ds := newDefaultServer(ctx, wgInterface, newServiceViaMemory(wgInterface), statusRecorder)
 	ds.hostsDNSHolder.set(hostsDnsList)
 	ds.permanent = true
 	ds.addHostRootZone()
@@ -130,7 +130,7 @@ func NewDefaultServerIos(
 	iosDnsManager IosDnsManager,
 	statusRecorder *peer.Status,
 ) *DefaultServer {
-	ds := newDefaultServer(ctx, wgInterface, NewServiceViaMemory(wgInterface), statusRecorder)
+	ds := newDefaultServer(ctx, wgInterface, newServiceViaMemory(wgInterface), statusRecorder)
 	ds.iosDnsManager = iosDnsManager
 	return ds
 }

client/internal/dns/server_test.go

@@ -15,18 +15,16 @@ import (
 	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
 
 	"github.com/netbirdio/netbird/client/firewall/uspfilter"
-	"github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/iface/configurer"
-	"github.com/netbirdio/netbird/client/iface/device"
-	pfmock "github.com/netbirdio/netbird/client/iface/mocks"
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/internal/stdnet"
 	nbdns "github.com/netbirdio/netbird/dns"
 	"github.com/netbirdio/netbird/formatter"
+	"github.com/netbirdio/netbird/iface"
+	pfmock "github.com/netbirdio/netbird/iface/mocks"
 )
 
 type mocWGIface struct {
-	filter device.PacketFilter
+	filter iface.PacketFilter
 }
 
 func (w *mocWGIface) Name() string {
@@ -45,11 +43,11 @@ func (w *mocWGIface) ToInterface() *net.Interface {
 	panic("implement me")
 }
 
-func (w *mocWGIface) GetFilter() device.PacketFilter {
+func (w *mocWGIface) GetFilter() iface.PacketFilter {
 	return w.filter
 }
 
-func (w *mocWGIface) GetDevice() *device.FilteredDevice {
+func (w *mocWGIface) GetDevice() *iface.DeviceWrapper {
 	panic("implement me")
 }
 
@@ -61,13 +59,13 @@ func (w *mocWGIface) IsUserspaceBind() bool {
 	return false
 }
 
-func (w *mocWGIface) SetFilter(filter device.PacketFilter) error {
+func (w *mocWGIface) SetFilter(filter iface.PacketFilter) error {
 	w.filter = filter
 	return nil
 }
 
-func (w *mocWGIface) GetStats(_ string) (configurer.WGStats, error) {
-	return configurer.WGStats{}, nil
+func (w *mocWGIface) GetStats(_ string) (iface.WGStats, error) {
+	return iface.WGStats{}, nil
 }
 
 var zoneRecords = []nbdns.SimpleRecord{
@@ -536,7 +534,7 @@ func TestDNSServerStartStop(t *testing.T) {
 func TestDNSServerUpstreamDeactivateCallback(t *testing.T) {
 	hostManager := &mockHostConfigurator{}
 	server := DefaultServer{
-		service: NewServiceViaMemory(&mocWGIface{}),
+		service: newServiceViaMemory(&mocWGIface{}),
 		localResolver: &localResolver{
 			registeredMap: make(registrationMap),
 		},

client/internal/dns/service_listener.go

@@ -128,9 +128,6 @@ func (s *serviceViaListener) RuntimeIP() string {
 }
 
 func (s *serviceViaListener) setListenerStatus(running bool) {
-	s.listenerFlagLock.Lock()
-	defer s.listenerFlagLock.Unlock()
-
 	s.listenerIsRunning = running
 }
 

client/internal/dns/service_memory.go

@@ -12,7 +12,7 @@ import (
 	log "github.com/sirupsen/logrus"
 )
 
-type ServiceViaMemory struct {
+type serviceViaMemory struct {
 	wgInterface       WGIface
 	dnsMux            *dns.ServeMux
 	runtimeIP         string
@@ -22,8 +22,8 @@ type ServiceViaMemory struct {
 	listenerFlagLock  sync.Mutex
 }
 
-func NewServiceViaMemory(wgIface WGIface) *ServiceViaMemory {
-	s := &ServiceViaMemory{
+func newServiceViaMemory(wgIface WGIface) *serviceViaMemory {
+	s := &serviceViaMemory{
 		wgInterface: wgIface,
 		dnsMux:      dns.NewServeMux(),
 
@@ -33,7 +33,7 @@ func NewServiceViaMemory(wgIface WGIface) *ServiceViaMemory {
 	return s
 }
 
-func (s *ServiceViaMemory) Listen() error {
+func (s *serviceViaMemory) Listen() error {
 	s.listenerFlagLock.Lock()
 	defer s.listenerFlagLock.Unlock()
 
@@ -52,7 +52,7 @@ func (s *ServiceViaMemory) Listen() error {
 	return nil
 }
 
-func (s *ServiceViaMemory) Stop() {
+func (s *serviceViaMemory) Stop() {
 	s.listenerFlagLock.Lock()
 	defer s.listenerFlagLock.Unlock()
 
@@ -67,23 +67,23 @@ func (s *ServiceViaMemory) Stop() {
 	s.listenerIsRunning = false
 }
 
-func (s *ServiceViaMemory) RegisterMux(pattern string, handler dns.Handler) {
+func (s *serviceViaMemory) RegisterMux(pattern string, handler dns.Handler) {
 	s.dnsMux.Handle(pattern, handler)
 }
 
-func (s *ServiceViaMemory) DeregisterMux(pattern string) {
+func (s *serviceViaMemory) DeregisterMux(pattern string) {
 	s.dnsMux.HandleRemove(pattern)
 }
 
-func (s *ServiceViaMemory) RuntimePort() int {
+func (s *serviceViaMemory) RuntimePort() int {
 	return s.runtimePort
 }
 
-func (s *ServiceViaMemory) RuntimeIP() string {
+func (s *serviceViaMemory) RuntimeIP() string {
 	return s.runtimeIP
 }
 
-func (s *ServiceViaMemory) filterDNSTraffic() (string, error) {
+func (s *serviceViaMemory) filterDNSTraffic() (string, error) {
 	filter := s.wgInterface.GetFilter()
 	if filter == nil {
 		return "", fmt.Errorf("can't set DNS filter, filter not initialized")

client/internal/dns/upstream.go

@@ -24,7 +24,7 @@ const (
 	probeTimeout     = 2 * time.Second
 )
 
-const testRecord = "com."
+const testRecord = "."
 
 type upstreamClient interface {
 	exchange(ctx context.Context, upstream string, r *dns.Msg) (*dns.Msg, time.Duration, error)
@@ -42,7 +42,6 @@ type upstreamResolverBase struct {
 	upstreamServers  []string
 	disabled         bool
 	failsCount       atomic.Int32
-	successCount     atomic.Int32
 	failsTillDeact   int32
 	mutex            sync.Mutex
 	reactivatePeriod time.Duration
@@ -125,7 +124,6 @@ func (u *upstreamResolverBase) ServeDNS(w dns.ResponseWriter, r *dns.Msg) {
 			return
 		}
 
-		u.successCount.Add(1)
 		log.Tracef("took %s to query the upstream %s", t, upstream)
 
 		err = w.WriteMsg(rm)
@@ -174,11 +172,6 @@ func (u *upstreamResolverBase) probeAvailability() {
 	default:
 	}
 
-	// avoid probe if upstreams could resolve at least one query and fails count is less than failsTillDeact
-	if u.successCount.Load() > 0 && u.failsCount.Load() < u.failsTillDeact {
-		return
-	}
-
 	var success bool
 	var mu sync.Mutex
 	var wg sync.WaitGroup
@@ -190,7 +183,7 @@ func (u *upstreamResolverBase) probeAvailability() {
 		wg.Add(1)
 		go func() {
 			defer wg.Done()
-			err := u.testNameserver(upstream, 500*time.Millisecond)
+			err := u.testNameserver(upstream)
 			if err != nil {
 				errors = multierror.Append(errors, err)
 				log.Warnf("probing upstream nameserver %s: %s", upstream, err)
@@ -231,7 +224,7 @@ func (u *upstreamResolverBase) waitUntilResponse() {
 		}
 
 		for _, upstream := range u.upstreamServers {
-			if err := u.testNameserver(upstream, probeTimeout); err != nil {
+			if err := u.testNameserver(upstream); err != nil {
 				log.Tracef("upstream check for %s: %s", upstream, err)
 			} else {
 				// at least one upstream server is available, stop probing
@@ -251,7 +244,6 @@ func (u *upstreamResolverBase) waitUntilResponse() {
 
 	log.Infof("upstreams %s are responsive again. Adding them back to system", u.upstreamServers)
 	u.failsCount.Store(0)
-	u.successCount.Add(1)
 	u.reactivate()
 	u.disabled = false
 }
@@ -273,14 +265,13 @@ func (u *upstreamResolverBase) disable(err error) {
 	}
 
 	log.Warnf("Upstream resolving is Disabled for %v", reactivatePeriod)
-	u.successCount.Store(0)
 	u.deactivate(err)
 	u.disabled = true
 	go u.waitUntilResponse()
 }
 
-func (u *upstreamResolverBase) testNameserver(server string, timeout time.Duration) error {
-	ctx, cancel := context.WithTimeout(u.ctx, timeout)
+func (u *upstreamResolverBase) testNameserver(server string) error {
+	ctx, cancel := context.WithTimeout(u.ctx, probeTimeout)
 	defer cancel()
 
 	r := new(dns.Msg).SetQuestion(testRecord, dns.TypeSOA)

client/internal/dns/upstream_ios.go

@@ -4,7 +4,6 @@ package dns
 
 import (
 	"context"
-	"fmt"
 	"net"
 	"syscall"
 	"time"
@@ -18,9 +17,9 @@ import (
 
 type upstreamResolverIOS struct {
 	*upstreamResolverBase
-	lIP           net.IP
-	lNet          *net.IPNet
-	interfaceName string
+	lIP    net.IP
+	lNet   *net.IPNet
+	iIndex int
 }
 
 func newUpstreamResolver(
@@ -33,11 +32,17 @@ func newUpstreamResolver(
 ) (*upstreamResolverIOS, error) {
 	upstreamResolverBase := newUpstreamResolverBase(ctx, statusRecorder)
 
+	index, err := getInterfaceIndex(interfaceName)
+	if err != nil {
+		log.Debugf("unable to get interface index for %s: %s", interfaceName, err)
+		return nil, err
+	}
+
 	ios := &upstreamResolverIOS{
 		upstreamResolverBase: upstreamResolverBase,
 		lIP:                  ip,
 		lNet:                 net,
-		interfaceName:        interfaceName,
+		iIndex:               index,
 	}
 	ios.upstreamClient = ios
 
@@ -48,7 +53,7 @@ func (u *upstreamResolverIOS) exchange(ctx context.Context, upstream string, r *
 	client := &dns.Client{}
 	upstreamHost, _, err := net.SplitHostPort(upstream)
 	if err != nil {
-		return nil, 0, fmt.Errorf("error while parsing upstream host: %s", err)
+		log.Errorf("error while parsing upstream host: %s", err)
 	}
 
 	timeout := upstreamTimeout
@@ -60,35 +65,26 @@ func (u *upstreamResolverIOS) exchange(ctx context.Context, upstream string, r *
 	upstreamIP := net.ParseIP(upstreamHost)
 	if u.lNet.Contains(upstreamIP) || net.IP.IsPrivate(upstreamIP) {
 		log.Debugf("using private client to query upstream: %s", upstream)
-		client, err = GetClientPrivate(u.lIP, u.interfaceName, timeout)
-		if err != nil {
-			return nil, 0, fmt.Errorf("error while creating private client: %s", err)
-		}
+		client = u.getClientPrivate(timeout)
 	}
 
 	// Cannot use client.ExchangeContext because it overwrites our Dialer
 	return client.Exchange(r, upstream)
 }
 
-// GetClientPrivate returns a new DNS client bound to the local IP address of the Netbird interface
+// getClientPrivate returns a new DNS client bound to the local IP address of the Netbird interface
 // This method is needed for iOS
-func GetClientPrivate(ip net.IP, interfaceName string, dialTimeout time.Duration) (*dns.Client, error) {
-	index, err := getInterfaceIndex(interfaceName)
-	if err != nil {
-		log.Debugf("unable to get interface index for %s: %s", interfaceName, err)
-		return nil, err
-	}
-
+func (u *upstreamResolverIOS) getClientPrivate(dialTimeout time.Duration) *dns.Client {
 	dialer := &net.Dialer{
 		LocalAddr: &net.UDPAddr{
-			IP:   ip,
+			IP:   u.lIP,
 			Port: 0, // Let the OS pick a free port
 		},
 		Timeout: dialTimeout,
 		Control: func(network, address string, c syscall.RawConn) error {
 			var operr error
 			fn := func(s uintptr) {
-				operr = unix.SetsockoptInt(int(s), unix.IPPROTO_IP, unix.IP_BOUND_IF, index)
+				operr = unix.SetsockoptInt(int(s), unix.IPPROTO_IP, unix.IP_BOUND_IF, u.iIndex)
 			}
 
 			if err := c.Control(fn); err != nil {
@@ -105,7 +101,7 @@ func GetClientPrivate(ip net.IP, interfaceName string, dialTimeout time.Duration
 	client := &dns.Client{
 		Dialer: dialer,
 	}
-	return client, nil
+	return client
 }
 
 func getInterfaceIndex(interfaceName string) (int, error) {

client/internal/dns/wgiface.go

@@ -5,9 +5,7 @@ package dns
 import (
 	"net"
 
-	"github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/iface/configurer"
-	"github.com/netbirdio/netbird/client/iface/device"
+	"github.com/netbirdio/netbird/iface"
 )
 
 // WGIface defines subset methods of interface required for manager
@@ -16,7 +14,7 @@ type WGIface interface {
 	Address() iface.WGAddress
 	ToInterface() *net.Interface
 	IsUserspaceBind() bool
-	GetFilter() device.PacketFilter
-	GetDevice() *device.FilteredDevice
-	GetStats(peerKey string) (configurer.WGStats, error)
+	GetFilter() iface.PacketFilter
+	GetDevice() *iface.DeviceWrapper
+	GetStats(peerKey string) (iface.WGStats, error)
 }

client/internal/dns/wgiface_windows.go

@@ -1,18 +1,14 @@
 package dns
 
-import (
-	"github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/iface/configurer"
-	"github.com/netbirdio/netbird/client/iface/device"
-)
+import "github.com/netbirdio/netbird/iface"
 
 // WGIface defines subset methods of interface required for manager
 type WGIface interface {
 	Name() string
 	Address() iface.WGAddress
 	IsUserspaceBind() bool
-	GetFilter() device.PacketFilter
-	GetDevice() *device.FilteredDevice
-	GetStats(peerKey string) (configurer.WGStats, error)
+	GetFilter() iface.PacketFilter
+	GetDevice() *iface.DeviceWrapper
+	GetStats(peerKey string) (iface.WGStats, error)
 	GetInterfaceGUIDString() (string, error)
 }

client/internal/engine.go

@@ -13,7 +13,6 @@ import (
 	"slices"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 
 	"github.com/pion/ice/v3"
@@ -23,12 +22,8 @@ import (
 
 	"github.com/netbirdio/netbird/client/firewall"
 	"github.com/netbirdio/netbird/client/firewall/manager"
-	"github.com/netbirdio/netbird/client/iface/device"
 	"github.com/netbirdio/netbird/client/internal/acl"
 	"github.com/netbirdio/netbird/client/internal/dns"
-
-	"github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/iface/bind"
 	"github.com/netbirdio/netbird/client/internal/networkmonitor"
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/internal/relay"
@@ -39,11 +34,11 @@ import (
 	nbssh "github.com/netbirdio/netbird/client/ssh"
 	"github.com/netbirdio/netbird/client/system"
 	nbdns "github.com/netbirdio/netbird/dns"
+	"github.com/netbirdio/netbird/iface"
+	"github.com/netbirdio/netbird/iface/bind"
 	mgm "github.com/netbirdio/netbird/management/client"
 	"github.com/netbirdio/netbird/management/domain"
 	mgmProto "github.com/netbirdio/netbird/management/proto"
-	auth "github.com/netbirdio/netbird/relay/auth/hmac"
-	relayClient "github.com/netbirdio/netbird/relay/client"
 	"github.com/netbirdio/netbird/route"
 	signal "github.com/netbirdio/netbird/signal/client"
 	sProto "github.com/netbirdio/netbird/signal/proto"
@@ -106,8 +101,7 @@ type EngineConfig struct {
 // Engine is a mechanism responsible for reacting on Signal and Management stream events and managing connections to the remote peers.
 type Engine struct {
 	// signal is a Signal Service client
-	signal   signal.Client
-	signaler *peer.Signaler
+	signal signal.Client
 	// mgmClient is a Management Service client
 	mgmClient mgm.Client
 	// peerConns is a map that holds all the peers that are known to this peer
@@ -128,8 +122,7 @@ type Engine struct {
 	// STUNs is a list of STUN servers used by ICE
 	STUNs []*stun.URI
 	// TURNs is a list of STUN servers used by ICE
-	TURNs    []*stun.URI
-	stunTurn atomic.Value
+	TURNs []*stun.URI
 
 	// clientRoutes is the most recent list of clientRoutes received from the Management Service
 	clientRoutes   route.HAMap
@@ -141,7 +134,7 @@ type Engine struct {
 	ctx    context.Context
 	cancel context.CancelFunc
 
-	wgInterface    iface.IWGIface
+	wgInterface    *iface.WGIface
 	wgProxyFactory *wgproxy.Factory
 
 	udpMux *bind.UniversalUDPMuxDefault
@@ -162,12 +155,15 @@ type Engine struct {
 
 	dnsServer dns.Server
 
-	probes *ProbeHolder
+	mgmProbe    *Probe
+	signalProbe *Probe
+	relayProbe  *Probe
+	wgProbe     *Probe
+
+	wgConnWorker sync.WaitGroup
 
 	// checks are the client-applied posture checks that need to be evaluated on the client
 	checks []*mgmProto.Checks
-
-	relayManager *relayClient.Manager
 }
 
 // Peer is an instance of the Connection Peer
@@ -182,7 +178,6 @@ func NewEngine(
 	clientCancel context.CancelFunc,
 	signalClient signal.Client,
 	mgmClient mgm.Client,
-	relayManager *relayClient.Manager,
 	config *EngineConfig,
 	mobileDep MobileDependency,
 	statusRecorder *peer.Status,
@@ -193,11 +188,13 @@ func NewEngine(
 		clientCancel,
 		signalClient,
 		mgmClient,
-		relayManager,
 		config,
 		mobileDep,
 		statusRecorder,
 		nil,
+		nil,
+		nil,
+		nil,
 		checks,
 	)
 }
@@ -208,20 +205,21 @@ func NewEngineWithProbes(
 	clientCancel context.CancelFunc,
 	signalClient signal.Client,
 	mgmClient mgm.Client,
-	relayManager *relayClient.Manager,
 	config *EngineConfig,
 	mobileDep MobileDependency,
 	statusRecorder *peer.Status,
-	probes *ProbeHolder,
+	mgmProbe *Probe,
+	signalProbe *Probe,
+	relayProbe *Probe,
+	wgProbe *Probe,
 	checks []*mgmProto.Checks,
 ) *Engine {
+
 	return &Engine{
 		clientCtx:      clientCtx,
 		clientCancel:   clientCancel,
 		signal:         signalClient,
-		signaler:       peer.NewSignaler(signalClient, config.WgPrivateKey),
 		mgmClient:      mgmClient,
-		relayManager:   relayManager,
 		peerConns:      make(map[string]*peer.Conn),
 		syncMsgMux:     &sync.Mutex{},
 		config:         config,
@@ -231,51 +229,43 @@ func NewEngineWithProbes(
 		networkSerial:  0,
 		sshServerFunc:  nbssh.DefaultSSHServer,
 		statusRecorder: statusRecorder,
-		probes:         probes,
+		mgmProbe:       mgmProbe,
+		signalProbe:    signalProbe,
+		relayProbe:     relayProbe,
+		wgProbe:        wgProbe,
 		checks:         checks,
 	}
 }
 
 func (e *Engine) Stop() error {
-	if e == nil {
-		// this seems to be a very odd case but there was the possibility if the netbird down command comes before the engine is fully started
-		log.Debugf("tried stopping engine that is nil")
-		return nil
-	}
 	e.syncMsgMux.Lock()
 	defer e.syncMsgMux.Unlock()
 
+	if e.cancel != nil {
+		e.cancel()
+	}
+
 	// stopping network monitor first to avoid starting the engine again
 	if e.networkMonitor != nil {
 		e.networkMonitor.Stop()
 	}
 	log.Info("Network monitor: stopped")
 
-	// stop/restore DNS first so dbus and friends don't complain because of a missing interface
-	e.stopDNSServer()
-
-	if e.routeManager != nil {
-		e.routeManager.Stop()
-	}
-
 	err := e.removeAllPeers()
 	if err != nil {
-		return fmt.Errorf("failed to remove all peers: %s", err)
+		return err
 	}
 
 	e.clientRoutesMu.Lock()
 	e.clientRoutes = nil
 	e.clientRoutesMu.Unlock()
 
-	if e.cancel != nil {
-		e.cancel()
-	}
-
 	// very ugly but we want to remove peers from the WireGuard interface first before removing interface.
 	// Removing peers happens in the conn.Close() asynchronously
 	time.Sleep(500 * time.Millisecond)
 
 	e.close()
+	e.wgConnWorker.Wait()
 	log.Infof("stopped Netbird Engine")
 	return nil
 }
@@ -300,7 +290,7 @@ func (e *Engine) Start() error {
 	e.wgInterface = wgIface
 
 	userspace := e.wgInterface.IsUserspaceBind()
-	e.wgProxyFactory = wgproxy.NewFactory(userspace, e.config.WgPort)
+	e.wgProxyFactory = wgproxy.NewFactory(e.ctx, userspace, e.config.WgPort)
 
 	if e.config.RosenpassEnabled {
 		log.Infof("rosenpass is enabled")
@@ -326,7 +316,7 @@ func (e *Engine) Start() error {
 	}
 	e.dnsServer = dnsServer
 
-	e.routeManager = routemanager.NewManager(e.ctx, e.config.WgPrivateKey.PublicKey().String(), e.config.DNSRouteInterval, e.wgInterface, e.statusRecorder, e.relayManager, initialRoutes)
+	e.routeManager = routemanager.NewManager(e.ctx, e.config.WgPrivateKey.PublicKey().String(), e.config.DNSRouteInterval, e.wgInterface, e.statusRecorder, initialRoutes)
 	beforePeerHook, afterPeerHook, err := e.routeManager.Init()
 	if err != nil {
 		log.Errorf("Failed to initialize route manager: %s", err)
@@ -475,45 +465,80 @@ func (e *Engine) removePeer(peerKey string) error {
 	conn, exists := e.peerConns[peerKey]
 	if exists {
 		delete(e.peerConns, peerKey)
-		conn.Close()
+		err := conn.Close()
+		if err != nil {
+			switch err.(type) {
+			case *peer.ConnectionAlreadyClosedError:
+				return nil
+			default:
+				return err
+			}
+		}
 	}
 	return nil
 }
 
+func signalCandidate(candidate ice.Candidate, myKey wgtypes.Key, remoteKey wgtypes.Key, s signal.Client) error {
+	err := s.Send(&sProto.Message{
+		Key:       myKey.PublicKey().String(),
+		RemoteKey: remoteKey.String(),
+		Body: &sProto.Body{
+			Type:    sProto.Body_CANDIDATE,
+			Payload: candidate.Marshal(),
+		},
+	})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func sendSignal(message *sProto.Message, s signal.Client) error {
+	return s.Send(message)
+}
+
+// SignalOfferAnswer signals either an offer or an answer to remote peer
+func SignalOfferAnswer(offerAnswer peer.OfferAnswer, myKey wgtypes.Key, remoteKey wgtypes.Key, s signal.Client,
+	isAnswer bool) error {
+	var t sProto.Body_Type
+	if isAnswer {
+		t = sProto.Body_ANSWER
+	} else {
+		t = sProto.Body_OFFER
+	}
+
+	msg, err := signal.MarshalCredential(myKey, offerAnswer.WgListenPort, remoteKey, &signal.Credential{
+		UFrag: offerAnswer.IceCredentials.UFrag,
+		Pwd:   offerAnswer.IceCredentials.Pwd,
+	}, t, offerAnswer.RosenpassPubKey, offerAnswer.RosenpassAddr)
+	if err != nil {
+		return err
+	}
+
+	err = s.Send(msg)
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
 func (e *Engine) handleSync(update *mgmProto.SyncResponse) error {
 	e.syncMsgMux.Lock()
 	defer e.syncMsgMux.Unlock()
 
 	if update.GetWiretrusteeConfig() != nil {
-		wCfg := update.GetWiretrusteeConfig()
-		err := e.updateTURNs(wCfg.GetTurns())
+		err := e.updateTURNs(update.GetWiretrusteeConfig().GetTurns())
 		if err != nil {
-			return fmt.Errorf("update TURNs: %w", err)
+			return err
 		}
 
-		err = e.updateSTUNs(wCfg.GetStuns())
+		err = e.updateSTUNs(update.GetWiretrusteeConfig().GetStuns())
 		if err != nil {
-			return fmt.Errorf("update STUNs: %w", err)
+			return err
 		}
 
-		var stunTurn []*stun.URI
-		stunTurn = append(stunTurn, e.STUNs...)
-		stunTurn = append(stunTurn, e.TURNs...)
-		e.stunTurn.Store(stunTurn)
-
-		relayMsg := wCfg.GetRelay()
-		if relayMsg != nil {
-			c := &auth.Token{
-				Payload:   relayMsg.GetTokenPayload(),
-				Signature: relayMsg.GetTokenSignature(),
-			}
-			if err := e.relayManager.UpdateToken(c); err != nil {
-				log.Errorf("failed to update relay token: %v", err)
-				return fmt.Errorf("update relay token: %w", err)
-			}
-		}
-
-		// todo update relay address in the relay manager
 		// todo update signal
 	}
 
@@ -627,7 +652,7 @@ func (e *Engine) updateConfig(conf *mgmProto.PeerConfig) error {
 	e.statusRecorder.UpdateLocalPeerState(peer.LocalPeerState{
 		IP:              e.config.WgAddr,
 		PubKey:          e.config.WgPrivateKey.PublicKey().String(),
-		KernelInterface: device.WireGuardModuleIsLoaded(),
+		KernelInterface: iface.WireGuardModuleIsLoaded(),
 		FQDN:            conf.GetFqdn(),
 	})
 
@@ -712,11 +737,6 @@ func (e *Engine) updateNetworkMap(networkMap *mgmProto.NetworkMap) error {
 		return nil
 	}
 
-	// Apply ACLs in the beginning to avoid security leaks
-	if e.acl != nil {
-		e.acl.ApplyFiltering(networkMap)
-	}
-
 	protoRoutes := networkMap.GetRoutes()
 	if protoRoutes == nil {
 		protoRoutes = []*mgmProto.Route{}
@@ -783,6 +803,10 @@ func (e *Engine) updateNetworkMap(networkMap *mgmProto.NetworkMap) error {
 		log.Errorf("failed to update dns server, err: %v", err)
 	}
 
+	if e.acl != nil {
+		e.acl.ApplyFiltering(networkMap)
+	}
+
 	e.networkSerial = serial
 
 	// Test received (upstream) servers for availability right away instead of upon usage.
@@ -910,13 +934,68 @@ func (e *Engine) addNewPeer(peerConfig *mgmProto.RemotePeerConfig) error {
 			log.Warnf("error adding peer %s to status recorder, got error: %v", peerKey, err)
 		}
 
-		conn.Open()
+		e.wgConnWorker.Add(1)
+		go e.connWorker(conn, peerKey)
 	}
 	return nil
 }
 
+func (e *Engine) connWorker(conn *peer.Conn, peerKey string) {
+	defer e.wgConnWorker.Done()
+	for {
+
+		// randomize starting time a bit
+		min := 500
+		max := 2000
+		duration := time.Duration(rand.Intn(max-min)+min) * time.Millisecond
+		select {
+		case <-e.ctx.Done():
+			return
+		case <-time.After(duration):
+		}
+
+		// if peer has been removed -> give up
+		if !e.peerExists(peerKey) {
+			log.Debugf("peer %s doesn't exist anymore, won't retry connection", peerKey)
+			return
+		}
+
+		if !e.signal.Ready() {
+			log.Infof("signal client isn't ready, skipping connection attempt %s", peerKey)
+			continue
+		}
+
+		// we might have received new STUN and TURN servers meanwhile, so update them
+		e.syncMsgMux.Lock()
+		conn.UpdateStunTurn(append(e.STUNs, e.TURNs...))
+		e.syncMsgMux.Unlock()
+
+		err := conn.Open(e.ctx)
+		if err != nil {
+			log.Debugf("connection to peer %s failed: %v", peerKey, err)
+			var connectionClosedError *peer.ConnectionClosedError
+			switch {
+			case errors.As(err, &connectionClosedError):
+				// conn has been forced to close, so we exit the loop
+				return
+			default:
+			}
+		}
+	}
+}
+
+func (e *Engine) peerExists(peerKey string) bool {
+	e.syncMsgMux.Lock()
+	defer e.syncMsgMux.Unlock()
+	_, ok := e.peerConns[peerKey]
+	return ok
+}
+
 func (e *Engine) createPeerConn(pubKey string, allowedIPs string) (*peer.Conn, error) {
 	log.Debugf("creating peer connection %s", pubKey)
+	var stunTurn []*stun.URI
+	stunTurn = append(stunTurn, e.STUNs...)
+	stunTurn = append(stunTurn, e.TURNs...)
 
 	wgConfig := peer.WgConfig{
 		RemoteKey:    pubKey,
@@ -949,29 +1028,52 @@ func (e *Engine) createPeerConn(pubKey string, allowedIPs string) (*peer.Conn, e
 	// randomize connection timeout
 	timeout := time.Duration(rand.Intn(PeerConnectionTimeoutMax-PeerConnectionTimeoutMin)+PeerConnectionTimeoutMin) * time.Millisecond
 	config := peer.ConnConfig{
-		Key:             pubKey,
-		LocalKey:        e.config.WgPrivateKey.PublicKey().String(),
-		Timeout:         timeout,
-		WgConfig:        wgConfig,
-		LocalWgPort:     e.config.WgPort,
-		RosenpassPubKey: e.getRosenpassPubKey(),
-		RosenpassAddr:   e.getRosenpassAddr(),
-		ICEConfig: peer.ICEConfig{
-			StunTurn:             &e.stunTurn,
-			InterfaceBlackList:   e.config.IFaceBlackList,
-			DisableIPv6Discovery: e.config.DisableIPv6Discovery,
-			UDPMux:               e.udpMux.UDPMuxDefault,
-			UDPMuxSrflx:          e.udpMux,
-			NATExternalIPs:       e.parseNATExternalIPMappings(),
-		},
+		Key:                  pubKey,
+		LocalKey:             e.config.WgPrivateKey.PublicKey().String(),
+		StunTurn:             stunTurn,
+		InterfaceBlackList:   e.config.IFaceBlackList,
+		DisableIPv6Discovery: e.config.DisableIPv6Discovery,
+		Timeout:              timeout,
+		UDPMux:               e.udpMux.UDPMuxDefault,
+		UDPMuxSrflx:          e.udpMux,
+		WgConfig:             wgConfig,
+		LocalWgPort:          e.config.WgPort,
+		NATExternalIPs:       e.parseNATExternalIPMappings(),
+		RosenpassPubKey:      e.getRosenpassPubKey(),
+		RosenpassAddr:        e.getRosenpassAddr(),
 	}
 
-	peerConn, err := peer.NewConn(e.ctx, config, e.statusRecorder, e.wgProxyFactory, e.signaler, e.mobileDep.IFaceDiscover, e.relayManager)
+	peerConn, err := peer.NewConn(config, e.statusRecorder, e.wgProxyFactory, e.mobileDep.TunAdapter, e.mobileDep.IFaceDiscover)
 	if err != nil {
 		return nil, err
 	}
 
+	wgPubKey, err := wgtypes.ParseKey(pubKey)
+	if err != nil {
+		return nil, err
+	}
+
+	signalOffer := func(offerAnswer peer.OfferAnswer) error {
+		return SignalOfferAnswer(offerAnswer, e.config.WgPrivateKey, wgPubKey, e.signal, false)
+	}
+
+	signalCandidate := func(candidate ice.Candidate) error {
+		return signalCandidate(candidate, e.config.WgPrivateKey, wgPubKey, e.signal)
+	}
+
+	signalAnswer := func(offerAnswer peer.OfferAnswer) error {
+		return SignalOfferAnswer(offerAnswer, e.config.WgPrivateKey, wgPubKey, e.signal, true)
+	}
+
+	peerConn.SetSignalCandidate(signalCandidate)
+	peerConn.SetSignalOffer(signalOffer)
+	peerConn.SetSignalAnswer(signalAnswer)
+	peerConn.SetSendSignalMessage(func(message *sProto.Message) error {
+		return sendSignal(message, e.signal)
+	})
+
 	if e.rpManager != nil {
+
 		peerConn.SetOnConnected(e.rpManager.OnConnected)
 		peerConn.SetOnDisconnected(e.rpManager.OnDisconnected)
 	}
@@ -1014,7 +1116,6 @@ func (e *Engine) receiveSignalEvents() {
 					Version:         msg.GetBody().GetNetBirdVersion(),
 					RosenpassPubKey: rosenpassPubKey,
 					RosenpassAddr:   rosenpassAddr,
-					RelaySrvAddress: msg.GetBody().GetRelayServerAddress(),
 				})
 			case sProto.Body_ANSWER:
 				remoteCred, err := signal.UnMarshalCredential(msg)
@@ -1037,7 +1138,6 @@ func (e *Engine) receiveSignalEvents() {
 					Version:         msg.GetBody().GetNetBirdVersion(),
 					RosenpassPubKey: rosenpassPubKey,
 					RosenpassAddr:   rosenpassAddr,
-					RelaySrvAddress: msg.GetBody().GetRelayServerAddress(),
 				})
 			case sProto.Body_CANDIDATE:
 				candidate, err := ice.UnmarshalCandidate(msg.GetBody().Payload)
@@ -1046,7 +1146,7 @@ func (e *Engine) receiveSignalEvents() {
 					return err
 				}
 
-				go conn.OnRemoteCandidate(candidate, e.GetClientRoutes())
+				conn.OnRemoteCandidate(candidate, e.GetClientRoutes())
 			case sProto.Body_MODE:
 			}
 
@@ -1123,12 +1223,21 @@ func (e *Engine) close() {
 		}
 	}
 
+	// stop/restore DNS first so dbus and friends don't complain because of a missing interface
+	if e.dnsServer != nil {
+		e.dnsServer.Stop()
+		e.dnsServer = nil
+	}
+
+	if e.routeManager != nil {
+		e.routeManager.Stop()
+	}
+
 	log.Debugf("removing Netbird interface %s", e.config.WgIfaceName)
 	if e.wgInterface != nil {
 		if err := e.wgInterface.Close(); err != nil {
 			log.Errorf("failed closing Netbird interface %s %v", e.config.WgIfaceName, err)
 		}
-		e.wgInterface = nil
 	}
 
 	if !isNil(e.sshServer) {
@@ -1167,15 +1276,15 @@ func (e *Engine) newWgIface() (*iface.WGIface, error) {
 		log.Errorf("failed to create pion's stdnet: %s", err)
 	}
 
-	var mArgs *device.MobileIFaceArguments
+	var mArgs *iface.MobileIFaceArguments
 	switch runtime.GOOS {
 	case "android":
-		mArgs = &device.MobileIFaceArguments{
+		mArgs = &iface.MobileIFaceArguments{
 			TunAdapter: e.mobileDep.TunAdapter,
 			TunFd:      int(e.mobileDep.FileDescriptor),
 		}
 	case "ios":
-		mArgs = &device.MobileIFaceArguments{
+		mArgs = &iface.MobileIFaceArguments{
 			TunFd: int(e.mobileDep.FileDescriptor),
 		}
 	default:
@@ -1291,27 +1400,24 @@ func (e *Engine) getRosenpassAddr() string {
 }
 
 func (e *Engine) receiveProbeEvents() {
-	if e.probes == nil {
-		return
-	}
-	if e.probes.SignalProbe != nil {
-		go e.probes.SignalProbe.Receive(e.ctx, func() bool {
+	if e.signalProbe != nil {
+		go e.signalProbe.Receive(e.ctx, func() bool {
 			healthy := e.signal.IsHealthy()
 			log.Debugf("received signal probe request, healthy: %t", healthy)
 			return healthy
 		})
 	}
 
-	if e.probes.MgmProbe != nil {
-		go e.probes.MgmProbe.Receive(e.ctx, func() bool {
+	if e.mgmProbe != nil {
+		go e.mgmProbe.Receive(e.ctx, func() bool {
 			healthy := e.mgmClient.IsHealthy()
 			log.Debugf("received management probe request, healthy: %t", healthy)
 			return healthy
 		})
 	}
 
-	if e.probes.RelayProbe != nil {
-		go e.probes.RelayProbe.Receive(e.ctx, func() bool {
+	if e.relayProbe != nil {
+		go e.relayProbe.Receive(e.ctx, func() bool {
 			healthy := true
 
 			results := append(e.probeSTUNs(), e.probeTURNs()...)
@@ -1330,13 +1436,13 @@ func (e *Engine) receiveProbeEvents() {
 		})
 	}
 
-	if e.probes.WgProbe != nil {
-		go e.probes.WgProbe.Receive(e.ctx, func() bool {
+	if e.wgProbe != nil {
+		go e.wgProbe.Receive(e.ctx, func() bool {
 			log.Debug("received wg probe request")
 
 			for _, peer := range e.peerConns {
 				key := peer.GetKey()
-				wgStats, err := peer.WgConfig().WgInterface.GetStats(key)
+				wgStats, err := peer.GetConf().WgConfig.WgInterface.GetStats(key)
 				if err != nil {
 					log.Debugf("failed to get wg stats for peer %s: %s", key, err)
 				}
@@ -1360,16 +1466,12 @@ func (e *Engine) probeTURNs() []relay.ProbeResult {
 }
 
 func (e *Engine) restartEngine() {
-	log.Info("restarting engine")
-	CtxGetState(e.ctx).Set(StatusConnecting)
-
 	if err := e.Stop(); err != nil {
 		log.Errorf("Failed to stop engine: %v", err)
 	}
-
-	_ = CtxGetState(e.ctx).Wrap(ErrResetConnection)
-	log.Infof("cancelling client, engine will be recreated")
-	e.clientCancel()
+	if err := e.Start(); err != nil {
+		log.Errorf("Failed to start engine: %v", err)
+	}
 }
 
 func (e *Engine) startNetworkMonitor() {
@@ -1391,17 +1493,16 @@ func (e *Engine) startNetworkMonitor() {
 			defer mu.Unlock()
 
 			if debounceTimer != nil {
-				log.Infof("Network monitor: detected network change, reset debounceTimer")
 				debounceTimer.Stop()
 			}
 
 			// Set a new timer to debounce rapid network changes
-			debounceTimer = time.AfterFunc(2*time.Second, func() {
+			debounceTimer = time.AfterFunc(1*time.Second, func() {
 				// This function is called after the debounce period
 				mu.Lock()
 				defer mu.Unlock()
 
-				log.Infof("Network monitor: detected network change, restarting engine")
+				log.Infof("Network monitor detected network change, restarting engine")
 				e.restartEngine()
 			})
 		})
@@ -1426,21 +1527,6 @@ func (e *Engine) addrViaRoutes(addr netip.Addr) (bool, netip.Prefix, error) {
 	return false, netip.Prefix{}, nil
 }
 
-func (e *Engine) stopDNSServer() {
-	if e.dnsServer == nil {
-		return
-	}
-	e.dnsServer.Stop()
-	e.dnsServer = nil
-	err := fmt.Errorf("DNS server stopped")
-	nsGroupStates := e.statusRecorder.GetDNSStates()
-	for i := range nsGroupStates {
-		nsGroupStates[i].Enabled = false
-		nsGroupStates[i].Error = err
-	}
-	e.statusRecorder.UpdateDNSStates(nsGroupStates)
-}
-
 // isChecksEqual checks if two slices of checks are equal.
 func isChecksEqual(checks []*mgmProto.Checks, oChecks []*mgmProto.Checks) bool {
 	return slices.EqualFunc(checks, oChecks, func(checks, oChecks *mgmProto.Checks) bool {

client/internal/engine_test.go

@@ -6,13 +6,13 @@ import (
 	"net"
 	"net/netip"
 	"os"
+	"path/filepath"
 	"runtime"
 	"strings"
 	"sync"
 	"testing"
 	"time"
 
-	"github.com/google/uuid"
 	"github.com/pion/transport/v3/stdnet"
 	log "github.com/sirupsen/logrus"
 	"github.com/stretchr/testify/assert"
@@ -24,21 +24,18 @@ import (
 
 	"github.com/netbirdio/management-integrations/integrations"
 
-	"github.com/netbirdio/netbird/client/iface"
-	"github.com/netbirdio/netbird/client/iface/bind"
-	"github.com/netbirdio/netbird/client/iface/device"
 	"github.com/netbirdio/netbird/client/internal/dns"
 	"github.com/netbirdio/netbird/client/internal/peer"
 	"github.com/netbirdio/netbird/client/internal/routemanager"
 	"github.com/netbirdio/netbird/client/ssh"
 	"github.com/netbirdio/netbird/client/system"
 	nbdns "github.com/netbirdio/netbird/dns"
+	"github.com/netbirdio/netbird/iface"
+	"github.com/netbirdio/netbird/iface/bind"
 	mgmt "github.com/netbirdio/netbird/management/client"
 	mgmtProto "github.com/netbirdio/netbird/management/proto"
 	"github.com/netbirdio/netbird/management/server"
 	"github.com/netbirdio/netbird/management/server/activity"
-	"github.com/netbirdio/netbird/management/server/telemetry"
-	relayClient "github.com/netbirdio/netbird/relay/client"
 	"github.com/netbirdio/netbird/route"
 	signal "github.com/netbirdio/netbird/signal/client"
 	"github.com/netbirdio/netbird/signal/proto"
@@ -60,12 +57,6 @@ var (
 	}
 )
 
-func TestMain(m *testing.M) {
-	_ = util.InitLog("debug", "console")
-	code := m.Run()
-	os.Exit(code)
-}
-
 func TestEngine_SSH(t *testing.T) {
 	// todo resolve test execution on freebsd
 	if runtime.GOOS == "windows" || runtime.GOOS == "freebsd" {
@@ -81,23 +72,13 @@ func TestEngine_SSH(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
-	relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
-	engine := NewEngine(
-		ctx, cancel,
-		&signal.MockClient{},
-		&mgmt.MockClient{},
-		relayMgr,
-		&EngineConfig{
-			WgIfaceName:      "utun101",
-			WgAddr:           "100.64.0.1/24",
-			WgPrivateKey:     key,
-			WgPort:           33100,
-			ServerSSHAllowed: true,
-		},
-		MobileDependency{},
-		peer.NewRecorder("https://mgm"),
-		nil,
-	)
+	engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
+		WgIfaceName:      "utun101",
+		WgAddr:           "100.64.0.1/24",
+		WgPrivateKey:     key,
+		WgPort:           33100,
+		ServerSSHAllowed: true,
+	}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil)
 
 	engine.dnsServer = &dns.MockServer{
 		UpdateDNSServerFunc: func(serial uint64, update nbdns.Config) error { return nil },
@@ -226,29 +207,21 @@ func TestEngine_UpdateNetworkMap(t *testing.T) {
 	ctx, cancel := context.WithCancel(context.Background())
 	defer cancel()
 
-	relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
-	engine := NewEngine(
-		ctx, cancel,
-		&signal.MockClient{},
-		&mgmt.MockClient{},
-		relayMgr,
-		&EngineConfig{
-			WgIfaceName:  "utun102",
-			WgAddr:       "100.64.0.1/24",
-			WgPrivateKey: key,
-			WgPort:       33100,
-		},
-		MobileDependency{},
-		peer.NewRecorder("https://mgm"),
-		nil)
-
-	wgIface := &iface.MockWGIface{
-		RemovePeerFunc: func(peerKey string) error {
-			return nil
-		},
+	engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
+		WgIfaceName:  "utun102",
+		WgAddr:       "100.64.0.1/24",
+		WgPrivateKey: key,
+		WgPort:       33100,
+	}, MobileDependency{}, peer.NewRecorder("https://mgm"), nil)
+	newNet, err := stdnet.NewNet()
+	if err != nil {
+		t.Fatal(err)
 	}
-	engine.wgInterface = wgIface
-	engine.routeManager = routemanager.NewManager(ctx, key.PublicKey().String(), time.Minute, engine.wgInterface, engine.statusRecorder, relayMgr, nil)
+	engine.wgInterface, err = iface.NewWGIFace("utun102", "100.64.0.1/24", engine.config.WgPort, key.String(), iface.DefaultMTU, newNet, nil, nil)
+	if err != nil {
+		t.Fatal(err)
+	}
+	engine.routeManager = routemanager.NewManager(ctx, key.PublicKey().String(), time.Minute, engine.wgInterface, engine.statusRecorder, nil)
 	engine.dnsServer = &dns.MockServer{
 		UpdateDNSServerFunc: func(serial uint64, update nbdns.Config) error { return nil },
 	}
@@ -430,8 +403,8 @@ func TestEngine_Sync(t *testing.T) {
 		}
 		return nil
 	}
-	relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
-	engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{SyncFunc: syncFunc}, relayMgr, &EngineConfig{
+
+	engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{SyncFunc: syncFunc}, &EngineConfig{
 		WgIfaceName:  "utun103",
 		WgAddr:       "100.64.0.1/24",
 		WgPrivateKey: key,
@@ -590,8 +563,7 @@ func TestEngine_UpdateNetworkMapWithRoutes(t *testing.T) {
 			wgIfaceName := fmt.Sprintf("utun%d", 104+n)
 			wgAddr := fmt.Sprintf("100.66.%d.1/24", n)
 
-			relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
-			engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, relayMgr, &EngineConfig{
+			engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
 				WgIfaceName:  wgIfaceName,
 				WgAddr:       wgAddr,
 				WgPrivateKey: key,
@@ -761,8 +733,7 @@ func TestEngine_UpdateNetworkMapWithDNSUpdate(t *testing.T) {
 			wgIfaceName := fmt.Sprintf("utun%d", 104+n)
 			wgAddr := fmt.Sprintf("100.66.%d.1/24", n)
 
-			relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
-			engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, relayMgr, &EngineConfig{
+			engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, &EngineConfig{
 				WgIfaceName:  wgIfaceName,
 				WgAddr:       wgAddr,
 				WgPrivateKey: key,
@@ -823,6 +794,20 @@ func TestEngine_UpdateNetworkMapWithDNSUpdate(t *testing.T) {
 func TestEngine_MultiplePeers(t *testing.T) {
 	// log.SetLevel(log.DebugLevel)
 
+	dir := t.TempDir()
+
+	err := util.CopyFileContents("../testdata/store.json", filepath.Join(dir, "store.json"))
+	if err != nil {
+		t.Fatal(err)
+	}
+	defer func() {
+		err = os.Remove(filepath.Join(dir, "store.json")) //nolint
+		if err != nil {
+			t.Fatal(err)
+			return
+		}
+	}()
+
 	ctx, cancel := context.WithCancel(CtxInitState(context.Background()))
 	defer cancel()
 
@@ -832,7 +817,7 @@ func TestEngine_MultiplePeers(t *testing.T) {
 		return
 	}
 	defer sigServer.Stop()
-	mgmtServer, mgmtAddr, err := startManagement(t, t.TempDir(), "../testdata/store.sqlite")
+	mgmtServer, mgmtAddr, err := startManagement(t, dir)
 	if err != nil {
 		t.Fatal(err)
 		return
@@ -859,8 +844,6 @@ func TestEngine_MultiplePeers(t *testing.T) {
 			engine.dnsServer = &dns.MockServer{}
 			mu.Lock()
 			defer mu.Unlock()
-			guid := fmt.Sprintf("{%s}", uuid.New().String())
-			device.CustomWindowsGUIDString = strings.ToLower(guid)
 			err = engine.Start()
 			if err != nil {
 				t.Errorf("unable to start engine for peer %d with error %v", j, err)
@@ -1026,8 +1009,7 @@ func createEngine(ctx context.Context, cancel context.CancelFunc, setupKey strin
 		WgPort:       wgPort,
 	}
 
-	relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String())
-	e, err := NewEngine(ctx, cancel, signalClient, mgmtClient, relayMgr, conf, MobileDependency{}, peer.NewRecorder("https://mgm"), nil), nil
+	e, err := NewEngine(ctx, cancel, signalClient, mgmtClient, conf, MobileDependency{}, peer.NewRecorder("https://mgm"), nil), nil
 	e.ctx = ctx
 	return e, err
 }
@@ -1042,7 +1024,7 @@ func startSignal(t *testing.T) (*grpc.Server, string, error) {
 		log.Fatalf("failed to listen: %v", err)
 	}
 
-	srv, err := signalServer.NewServer(context.Background(), otel.Meter(""))
+	srv, err := signalServer.NewServer(otel.Meter(""))
 	require.NoError(t, err)
 	proto.RegisterSignalExchangeServer(s, srv)
 
@@ -1055,17 +1037,12 @@ func startSignal(t *testing.T) (*grpc.Server, string, error) {
 	return s, lis.Addr().String(), nil
 }
 
-func startManagement(t *testing.T, dataDir, testFile string) (*grpc.Server, string, error) {
+func startManagement(t *testing.T, dataDir string) (*grpc.Server, string, error) {
 	t.Helper()
 
 	config := &server.Config{
 		Stuns:      []*server.Host{},
 		TURNConfig: &server.TURNConfig{},
-		Relay: &server.Relay{
-			Addresses:      []string{"127.0.0.1:1234"},
-			CredentialsTTL: util.Duration{Duration: time.Hour},
-			Secret:         "222222222222222222",
-		},
 		Signal: &server.Host{
 			Proto: "http",
 			URI:   "localhost:10000",
@@ -1080,7 +1057,7 @@ func startManagement(t *testing.T, dataDir, testFile string) (*grpc.Server, stri
 	}
 	s := grpc.NewServer(grpc.KeepaliveEnforcementPolicy(kaep), grpc.KeepaliveParams(kasp))
 
-	store, cleanUp, err := server.NewTestStoreFromSqlite(context.Background(), testFile, config.Datadir)
+	store, cleanUp, err := server.NewTestStoreFromJson(context.Background(), config.Datadir)
 	if err != nil {
 		return nil, "", err
 	}
@@ -1092,17 +1069,12 @@ func startManagement(t *testing.T, dataDir, testFile string) (*grpc.Server, stri
 		return nil, "", err
 	}
 	ia, _ := integrations.NewIntegratedValidator(context.Background(), eventStore)
-
-	metrics, err := telemetry.NewDefaultAppMetrics(context.Background())
-	require.NoError(t, err)
-
-	accountManager, err := server.BuildManager(context.Background(), store, peersUpdateManager, nil, "", "netbird.selfhosted", eventStore, nil, false, ia, metrics)
+	accountManager, err := server.BuildManager(context.Background(), store, peersUpdateManager, nil, "", "netbird.selfhosted", eventStore, nil, false, ia)
 	if err != nil {
 		return nil, "", err
 	}
-
-	secretsManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig, config.Relay)
-	mgmtServer, err := server.NewServer(context.Background(), config, accountManager, peersUpdateManager, secretsManager, nil, nil)
+	turnManager := server.NewTimeBasedAuthSecretsManager(peersUpdateManager, config.TURNConfig)
+	mgmtServer, err := server.NewServer(context.Background(), config, accountManager, peersUpdateManager, turnManager, nil, nil)
 	if err != nil {
 		return nil, "", err
 	}

client/internal/mobile_dependency.go

@@ -1,16 +1,16 @@
 package internal
 
 import (
-	"github.com/netbirdio/netbird/client/iface/device"
 	"github.com/netbirdio/netbird/client/internal/dns"
 	"github.com/netbirdio/netbird/client/internal/listener"
 	"github.com/netbirdio/netbird/client/internal/stdnet"
+	"github.com/netbirdio/netbird/iface"
 )
 
 // MobileDependency collect all dependencies for mobile platform
 type MobileDependency struct {
 	// Android only
-	TunAdapter            device.TunAdapter
+	TunAdapter            iface.TunAdapter
 	IFaceDiscover         stdnet.ExternalIFaceDiscover
 	NetworkChangeListener listener.NetworkChangeListener
 	HostDNSAddresses      []string

client/internal/networkmonitor/monitor_bsd.go

@@ -4,7 +4,6 @@ package networkmonitor
 
 import (
 	"context"
-	"errors"
 	"fmt"
 	"syscall"
 	"unsafe"
@@ -22,17 +21,8 @@ func checkChange(ctx context.Context, nexthopv4, nexthopv6 systemops.Nexthop, ca
 		return fmt.Errorf("failed to open routing socket: %v", err)
 	}
 	defer func() {
-		err := unix.Close(fd)
-		if err != nil && !errors.Is(err, unix.EBADF) {
-			log.Warnf("Network monitor: failed to close routing socket: %v", err)
-		}
-	}()
-
-	go func() {
-		<-ctx.Done()
-		err := unix.Close(fd)
-		if err != nil && !errors.Is(err, unix.EBADF) {
-			log.Debugf("Network monitor: closed routing socket: %v", err)
+		if err := unix.Close(fd); err != nil {
+			log.Errorf("Network monitor: failed to close routing socket: %v", err)
 		}
 	}()
 
@@ -44,13 +34,11 @@ func checkChange(ctx context.Context, nexthopv4, nexthopv6 systemops.Nexthop, ca
 			buf := make([]byte, 2048)
 			n, err := unix.Read(fd, buf)
 			if err != nil {
-				if !errors.Is(err, unix.EBADF) && !errors.Is(err, unix.EINVAL) {
-					log.Warnf("Network monitor: failed to read from routing socket: %v", err)
-				}
+				log.Errorf("Network monitor: failed to read from routing socket: %v", err)
 				continue
 			}
 			if n < unix.SizeofRtMsghdr {
-				log.Debugf("Network monitor: read from routing socket returned less than expected: %d bytes", n)
+				log.Errorf("Network monitor: read from routing socket returned less than expected: %d bytes", n)
 				continue
 			}
 
@@ -61,11 +49,11 @@ func checkChange(ctx context.Context, nexthopv4, nexthopv6 systemops.Nexthop, ca
 			case unix.RTM_ADD, syscall.RTM_DELETE:
 				route, err := parseRouteMessage(buf[:n])
 				if err != nil {
-					log.Debugf("Network monitor: error parsing routing message: %v", err)
+					log.Errorf("Network monitor: error parsing routing message: %v", err)
 					continue
 				}
 
-				if route.Dst.Bits() != 0 {
+				if !route.Dst.Addr().IsUnspecified() {
 					continue
 				}
 

client/internal/networkmonitor/monitor_generic.go

@@ -59,7 +59,7 @@ func (nw *NetworkMonitor) Start(ctx context.Context, callback func()) (err error
 	// recover in case sys ops panic
 	defer func() {
 		if r := recover(); r != nil {
-			err = fmt.Errorf("panic occurred: %v, stack trace: %s", r, debug.Stack())
+			err = fmt.Errorf("panic occurred: %v, stack trace: %s", r, string(debug.Stack()))
 		}
 	}()
 

client/internal/networkmonitor/monitor_windows.go

@@ -3,73 +3,243 @@ package networkmonitor
 import (
 	"context"
 	"fmt"
+	"net"
+	"net/netip"
 	"strings"
+	"time"
 
 	log "github.com/sirupsen/logrus"
 
 	"github.com/netbirdio/netbird/client/internal/routemanager/systemops"
 )
 
+const (
+	unreachable = 0
+	incomplete  = 1
+	probe       = 2
+	delay       = 3
+	stale       = 4
+	reachable   = 5
+	permanent   = 6
+	tbd         = 7
+)
+
+const interval = 10 * time.Second
+
 func checkChange(ctx context.Context, nexthopv4, nexthopv6 systemops.Nexthop, callback func()) error {
-	routeMonitor, err := systemops.NewRouteMonitor(ctx)
-	if err != nil {
-		return fmt.Errorf("failed to create route monitor: %w", err)
-	}
-	defer func() {
-		if err := routeMonitor.Stop(); err != nil {
-			log.Errorf("Network monitor: failed to stop route monitor: %v", err)
+	var neighborv4, neighborv6 *systemops.Neighbor
+	{
+		initialNeighbors, err := getNeighbors()
+		if err != nil {
+			return fmt.Errorf("get neighbors: %w", err)
 		}
-	}()
+
+		neighborv4 = assignNeighbor(nexthopv4, initialNeighbors)
+		neighborv6 = assignNeighbor(nexthopv6, initialNeighbors)
+	}
+	log.Debugf("Network monitor: initial IPv4 neighbor: %v, IPv6 neighbor: %v", neighborv4, neighborv6)
+
+	ticker := time.NewTicker(interval)
+	defer ticker.Stop()
 
 	for {
 		select {
 		case <-ctx.Done():
 			return ErrStopped
-		case route := <-routeMonitor.RouteUpdates():
-			if route.Destination.Bits() != 0 {
-				continue
-			}
-
-			if routeChanged(route, nexthopv4, nexthopv6, callback) {
-				break
+		case <-ticker.C:
+			if changed(nexthopv4, neighborv4, nexthopv6, neighborv6) {
+				go callback()
+				return nil
 			}
 		}
 	}
 }
 
-func routeChanged(route systemops.RouteUpdate, nexthopv4, nexthopv6 systemops.Nexthop, callback func()) bool {
-	intf := "<nil>"
-	if route.Interface != nil {
-		intf = route.Interface.Name
-		if isSoftInterface(intf) {
-			log.Debugf("Network monitor: ignoring default route change for soft interface %s", intf)
-			return false
-		}
+func assignNeighbor(nexthop systemops.Nexthop, initialNeighbors map[netip.Addr]systemops.Neighbor) *systemops.Neighbor {
+	if n, ok := initialNeighbors[nexthop.IP]; ok &&
+		n.State != unreachable &&
+		n.State != incomplete &&
+		n.State != tbd {
+		return &n
+	}
+	return nil
+}
+
+func changed(
+	nexthopv4 systemops.Nexthop,
+	neighborv4 *systemops.Neighbor,
+	nexthopv6 systemops.Nexthop,
+	neighborv6 *systemops.Neighbor,
+) bool {
+	neighbors, err := getNeighbors()
+	if err != nil {
+		log.Errorf("network monitor: error fetching current neighbors: %v", err)
+		return false
+	}
+	if neighborChanged(nexthopv4, neighborv4, neighbors) || neighborChanged(nexthopv6, neighborv6, neighbors) {
+		return true
 	}
 
-	switch route.Type {
-	case systemops.RouteModified:
-		// TODO: get routing table to figure out if our route is affected for modified routes
-		log.Infof("Network monitor: default route changed: via %s, interface %s", route.NextHop, intf)
-		go callback()
+	routes, err := getRoutes()
+	if err != nil {
+		log.Errorf("network monitor: error fetching current routes: %v", err)
+		return false
+	}
+
+	if routeChanged(nexthopv4, nexthopv4.Intf, routes) || routeChanged(nexthopv6, nexthopv6.Intf, routes) {
 		return true
-	case systemops.RouteAdded:
-		if route.NextHop.Is4() && route.NextHop != nexthopv4.IP || route.NextHop.Is6() && route.NextHop != nexthopv6.IP {
-			log.Infof("Network monitor: default route added: via %s, interface %s", route.NextHop, intf)
-			go callback()
-			return true
-		}
-	case systemops.RouteDeleted:
-		if nexthopv4.Intf != nil && route.NextHop == nexthopv4.IP || nexthopv6.Intf != nil && route.NextHop == nexthopv6.IP {
-			log.Infof("Network monitor: default route removed: via %s, interface %s", route.NextHop, intf)
-			go callback()
-			return true
-		}
 	}
 
 	return false
 }
 
-func isSoftInterface(name string) bool {
-	return strings.Contains(strings.ToLower(name), "isatap") || strings.Contains(strings.ToLower(name), "teredo")
+// routeChanged checks if the default routes still point to our nexthop/interface
+func routeChanged(nexthop systemops.Nexthop, intf *net.Interface, routes []systemops.Route) bool {
+	if !nexthop.IP.IsValid() {
+		return false
+	}
+
+	unspec := getUnspecifiedPrefix(nexthop.IP)
+	defaultRoutes, foundMatchingRoute := processRoutes(nexthop, intf, routes, unspec)
+
+	log.Tracef("network monitor: all default routes:\n%s", strings.Join(defaultRoutes, "\n"))
+
+	if !foundMatchingRoute {
+		logRouteChange(nexthop.IP, intf)
+		return true
+	}
+
+	return false
+}
+
+func getUnspecifiedPrefix(ip netip.Addr) netip.Prefix {
+	if ip.Is6() {
+		return netip.PrefixFrom(netip.IPv6Unspecified(), 0)
+	}
+	return netip.PrefixFrom(netip.IPv4Unspecified(), 0)
+}
+
+func processRoutes(nexthop systemops.Nexthop, intf *net.Interface, routes []systemops.Route, unspec netip.Prefix) ([]string, bool) {
+	var defaultRoutes []string
+	foundMatchingRoute := false
+
+	for _, r := range routes {
+		if r.Destination == unspec {
+			routeInfo := formatRouteInfo(r)
+			defaultRoutes = append(defaultRoutes, routeInfo)
+
+			if r.Nexthop == nexthop.IP && compareIntf(r.Interface, intf) == 0 {
+				foundMatchingRoute = true
+				log.Debugf("network monitor: found matching default route: %s", routeInfo)
+			}
+		}
+	}
+
+	return defaultRoutes, foundMatchingRoute
+}
+
+func formatRouteInfo(r systemops.Route) string {
+	newIntf := "<nil>"
+	if r.Interface != nil {
+		newIntf = r.Interface.Name
+	}
+	return fmt.Sprintf("Nexthop: %s, Interface: %s", r.Nexthop, newIntf)
+}
+
+func logRouteChange(ip netip.Addr, intf *net.Interface) {
+	oldIntf := "<nil>"
+	if intf != nil {
+		oldIntf = intf.Name
+	}
+	log.Infof("network monitor: default route for %s (%s) is gone or changed", ip, oldIntf)
+}
+
+func neighborChanged(nexthop systemops.Nexthop, neighbor *systemops.Neighbor, neighbors map[netip.Addr]systemops.Neighbor) bool {
+	if neighbor == nil {
+		return false
+	}
+
+	// TODO: consider non-local nexthops, e.g. on point-to-point interfaces
+	if n, ok := neighbors[nexthop.IP]; ok {
+		if n.State == unreachable || n.State == incomplete {
+			log.Infof("network monitor: neighbor %s (%s) is not reachable: %s", neighbor.IPAddress, neighbor.LinkLayerAddress, stateFromInt(n.State))
+			return true
+		} else if n.InterfaceIndex != neighbor.InterfaceIndex {
+			log.Infof(
+				"network monitor: neighbor %s (%s) changed interface from '%s' (%d) to '%s' (%d): %s",
+				neighbor.IPAddress,
+				neighbor.LinkLayerAddress,
+				neighbor.InterfaceAlias,
+				neighbor.InterfaceIndex,
+				n.InterfaceAlias,
+				n.InterfaceIndex,
+				stateFromInt(n.State),
+			)
+			return true
+		}
+	} else {
+		log.Infof("network monitor: neighbor %s (%s) is gone", neighbor.IPAddress, neighbor.LinkLayerAddress)
+		return true
+	}
+
+	return false
+}
+
+func getNeighbors() (map[netip.Addr]systemops.Neighbor, error) {
+	entries, err := systemops.GetNeighbors()
+	if err != nil {
+		return nil, fmt.Errorf("get neighbors: %w", err)
+	}
+
+	neighbours := make(map[netip.Addr]systemops.Neighbor, len(entries))
+	for _, entry := range entries {
+		neighbours[entry.IPAddress] = entry
+	}
+
+	return neighbours, nil
+}
+
+func getRoutes() ([]systemops.Route, error) {
+	entries, err := systemops.GetRoutes()
+	if err != nil {
+		return nil, fmt.Errorf("get routes: %w", err)
+	}
+
+	return entries, nil
+}
+
+func stateFromInt(state uint8) string {
+	switch state {
+	case unreachable:
+		return "unreachable"
+	case incomplete:
+		return "incomplete"
+	case probe:
+		return "probe"
+	case delay:
+		return "delay"
+	case stale:
+		return "stale"
+	case reachable:
+		return "reachable"
+	case permanent:
+		return "permanent"
+	case tbd:
+		return "tbd"
+	default:
+		return "unknown"
+	}
+}
+
+func compareIntf(a, b *net.Interface) int {
+	if a == nil && b == nil {
+		return 0
+	}
+	if a == nil {
+		return -1
+	}
+	if b == nil {
+		return 1
+	}
+	return a.Index - b.Index
 }

client/internal/peer/conn_status.go

@@ -1,10 +1,6 @@
 package peer
 
-import (
-	"sync/atomic"
-
-	log "github.com/sirupsen/logrus"
-)
+import log "github.com/sirupsen/logrus"
 
 const (
 	// StatusConnected indicate the peer is in connected state
@@ -16,34 +12,7 @@ const (
 )
 
 // ConnStatus describe the status of a peer's connection
-type ConnStatus int32
-
-// AtomicConnStatus is a thread-safe wrapper for ConnStatus
-type AtomicConnStatus struct {
-	status atomic.Int32
-}
-
-// NewAtomicConnStatus creates a new AtomicConnStatus with the given initial status
-func NewAtomicConnStatus() *AtomicConnStatus {
-	acs := &AtomicConnStatus{}
-	acs.Set(StatusDisconnected)
-	return acs
-}
-
-// Get returns the current connection status
-func (acs *AtomicConnStatus) Get() ConnStatus {
-	return ConnStatus(acs.status.Load())
-}
-
-// Set updates the connection status
-func (acs *AtomicConnStatus) Set(status ConnStatus) {
-	acs.status.Store(int32(status))
-}
-
-// String returns the string representation of the current status
-func (acs *AtomicConnStatus) String() string {
-	return acs.Get().String()
-}
+type ConnStatus int
 
 func (s ConnStatus) String() string {
 	switch s {

client/internal/peer/conn_test.go

@@ -2,33 +2,25 @@ package peer
 
 import (
 	"context"
-	"os"
 	"sync"
 	"testing"
 	"time"
 
 	"github.com/magiconair/properties/assert"
+	"github.com/pion/stun/v2"
 
-	"github.com/netbirdio/netbird/client/iface"
 	"github.com/netbirdio/netbird/client/internal/stdnet"
 	"github.com/netbirdio/netbird/client/internal/wgproxy"
-	"github.com/netbirdio/netbird/util"
+	"github.com/netbirdio/netbird/iface"
 )
 
 var connConf = ConnConfig{
-	Key:         "LLHf3Ma6z6mdLbriAJbqhX7+nM/B71lgw2+91q3LfhU=",
-	LocalKey:    "RRHf3Ma6z6mdLbriAJbqhX7+nM/B71lgw2+91q3LfhU=",
-	Timeout:     time.Second,
-	LocalWgPort: 51820,
-	ICEConfig: ICEConfig{
-		InterfaceBlackList: nil,
-	},
-}
-
-func TestMain(m *testing.M) {
-	_ = util.InitLog("trace", "console")
-	code := m.Run()
-	os.Exit(code)
+	Key:                "LLHf3Ma6z6mdLbriAJbqhX7+nM/B71lgw2+91q3LfhU=",
+	LocalKey:           "RRHf3Ma6z6mdLbriAJbqhX7+nM/B71lgw2+91q3LfhU=",
+	StunTurn:           []*stun.URI{},
+	InterfaceBlackList: nil,
+	Timeout:            time.Second,
+	LocalWgPort:        51820,
 }
 
 func TestNewConn_interfaceFilter(t *testing.T) {
@@ -44,11 +36,11 @@ func TestNewConn_interfaceFilter(t *testing.T) {
 }
 
 func TestConn_GetKey(t *testing.T) {
-	wgProxyFactory := wgproxy.NewFactory(false, connConf.LocalWgPort)
+	wgProxyFactory := wgproxy.NewFactory(context.Background(), false, connConf.LocalWgPort)
 	defer func() {
 		_ = wgProxyFactory.Free()
 	}()
-	conn, err := NewConn(context.Background(), connConf, nil, wgProxyFactory, nil, nil, nil)
+	conn, err := NewConn(connConf, nil, wgProxyFactory, nil, nil)
 	if err != nil {
 		return
 	}
@@ -59,11 +51,11 @@ func TestConn_GetKey(t *testing.T) {
 }
 
 func TestConn_OnRemoteOffer(t *testing.T) {
-	wgProxyFactory := wgproxy.NewFactory(false, connConf.LocalWgPort)
+	wgProxyFactory := wgproxy.NewFactory(context.Background(), false, connConf.LocalWgPort)
 	defer func() {
 		_ = wgProxyFactory.Free()
 	}()
-	conn, err := NewConn(context.Background(), connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil, nil)
+	conn, err := NewConn(connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil)
 	if err != nil {
 		return
 	}
@@ -71,7 +63,7 @@ func TestConn_OnRemoteOffer(t *testing.T) {
 	wg := sync.WaitGroup{}
 	wg.Add(2)
 	go func() {
-		<-conn.handshaker.remoteOffersCh
+		<-conn.remoteOffersCh
 		wg.Done()
 	}()
 
@@ -96,11 +88,11 @@ func TestConn_OnRemoteOffer(t *testing.T) {
 }
 
 func TestConn_OnRemoteAnswer(t *testing.T) {
-	wgProxyFactory := wgproxy.NewFactory(false, connConf.LocalWgPort)
+	wgProxyFactory := wgproxy.NewFactory(context.Background(), false, connConf.LocalWgPort)
 	defer func() {
 		_ = wgProxyFactory.Free()
 	}()
-	conn, err := NewConn(context.Background(), connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil, nil)
+	conn, err := NewConn(connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil)
 	if err != nil {
 		return
 	}
@@ -108,7 +100,7 @@ func TestConn_OnRemoteAnswer(t *testing.T) {
 	wg := sync.WaitGroup{}
 	wg.Add(2)
 	go func() {
-		<-conn.handshaker.remoteAnswerCh
+		<-conn.remoteAnswerCh
 		wg.Done()
 	}()
 
@@ -132,42 +124,62 @@ func TestConn_OnRemoteAnswer(t *testing.T) {
 	wg.Wait()
 }
 func TestConn_Status(t *testing.T) {
-	wgProxyFactory := wgproxy.NewFactory(false, connConf.LocalWgPort)
+	wgProxyFactory := wgproxy.NewFactory(context.Background(), false, connConf.LocalWgPort)
 	defer func() {
 		_ = wgProxyFactory.Free()
 	}()
-	conn, err := NewConn(context.Background(), connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil, nil)
+	conn, err := NewConn(connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil)
 	if err != nil {
 		return
 	}
 
 	tables := []struct {
-		name        string
-		statusIce   ConnStatus
-		statusRelay ConnStatus
-		want        ConnStatus
+		name   string
+		status ConnStatus
+		want   ConnStatus
 	}{
-		{"StatusConnected", StatusConnected, StatusConnected, StatusConnected},
-		{"StatusDisconnected", StatusDisconnected, StatusDisconnected, StatusDisconnected},
-		{"StatusConnecting", StatusConnecting, StatusConnecting, StatusConnecting},
-		{"StatusConnectingIce", StatusConnecting, StatusDisconnected, StatusConnecting},
-		{"StatusConnectingIceAlternative", StatusConnecting, StatusConnected, StatusConnected},
-		{"StatusConnectingRelay", StatusDisconnected, StatusConnecting, StatusConnecting},
-		{"StatusConnectingRelayAlternative", StatusConnected, StatusConnecting, StatusConnected},
+		{"StatusConnected", StatusConnected, StatusConnected},
+		{"StatusDisconnected", StatusDisconnected, StatusDisconnected},
+		{"StatusConnecting", StatusConnecting, StatusConnecting},
 	}
 
 	for _, table := range tables {
 		t.Run(table.name, func(t *testing.T) {
-			si := NewAtomicConnStatus()
-			si.Set(table.statusIce)
-			conn.statusICE = si
-
-			sr := NewAtomicConnStatus()
-			sr.Set(table.statusRelay)
-			conn.statusRelay = sr
+			conn.status = table.status
 
 			got := conn.Status()
 			assert.Equal(t, got, table.want, "they should be equal")
 		})
 	}
 }
+
+func TestConn_Close(t *testing.T) {
+	wgProxyFactory := wgproxy.NewFactory(context.Background(), false, connConf.LocalWgPort)
+	defer func() {
+		_ = wgProxyFactory.Free()
+	}()
+	conn, err := NewConn(connConf, NewRecorder("https://mgm"), wgProxyFactory, nil, nil)
+	if err != nil {
+		return
+	}
+
+	wg := sync.WaitGroup{}
+	wg.Add(1)
+	go func() {
+		<-conn.closeCh
+		wg.Done()
+	}()
+
+	go func() {
+		for {
+			err := conn.Close()
+			if err != nil {
+				continue
+			} else {
+				return
+			}
+		}
+	}()
+
+	wg.Wait()
+}

client/internal/peer/handshaker.go

@@ -1,192 +0,0 @@
-package peer
-
-import (
-	"context"
-	"errors"
-	"sync"
-
-	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
-}
-
-type Handshaker struct {
-	mu                  sync.Mutex
-	ctx                 context.Context
-	log                 *log.Entry
-	config              ConnConfig
-	signaler            *Signaler
-	ice                 *WorkerICE
-	relay               *WorkerRelay
-	onNewOfferListeners []func(*OfferAnswer)
-
-	// 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(ctx context.Context, log *log.Entry, config ConnConfig, signaler *Signaler, ice *WorkerICE, relay *WorkerRelay) *Handshaker {
-	return &Handshaker{
-		ctx:            ctx,
-		log:            log,
-		config:         config,
-		signaler:       signaler,
-		ice:            ice,
-		relay:          relay,
-		remoteOffersCh: make(chan OfferAnswer),
-		remoteAnswerCh: make(chan OfferAnswer),
-	}
-}
-
-func (h *Handshaker) AddOnNewOfferListener(offer func(remoteOfferAnswer *OfferAnswer)) {
-	h.onNewOfferListeners = append(h.onNewOfferListeners, offer)
-}
-
-func (h *Handshaker) Listen() {
-	for {
-		h.log.Debugf("wait for remote offer confirmation")
-		remoteOfferAnswer, err := h.waitForRemoteOfferConfirmation()
-		if err != nil {
-			var connectionClosedError *ConnectionClosedError
-			if errors.As(err, &connectionClosedError) {
-				h.log.Tracef("stop handshaker")
-				return
-			}
-			h.log.Errorf("failed to received remote offer confirmation: %s", err)
-			continue
-		}
-
-		h.log.Debugf("received connection confirmation, running version %s and with remote WireGuard listen port %d", remoteOfferAnswer.Version, remoteOfferAnswer.WgListenPort)
-		for _, listener := range h.onNewOfferListeners {
-			go listener(remoteOfferAnswer)
-		}
-	}
-}
-
-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) bool {
-	select {
-	case h.remoteOffersCh <- offer:
-		return true
-	default:
-		h.log.Debugf("OnRemoteOffer skipping message because is not ready")
-		// connection might not be ready yet to receive so we ignore the message
-		return false
-	}
-}
-
-// 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) bool {
-	select {
-	case h.remoteAnswerCh <- answer:
-		return true
-	default:
-		// connection might not be ready yet to receive so we ignore the message
-		h.log.Debugf("OnRemoteAnswer skipping message because is not ready")
-		return false
-	}
-}
-
-func (h *Handshaker) waitForRemoteOfferConfirmation() (*OfferAnswer, error) {
-	select {
-	case remoteOfferAnswer := <-h.remoteOffersCh:
-		// received confirmation from the remote peer -> ready to proceed
-		err := h.sendAnswer()
-		if err != nil {
-			return nil, err
-		}
-		return &remoteOfferAnswer, nil
-	case remoteOfferAnswer := <-h.remoteAnswerCh:
-		return &remoteOfferAnswer, nil
-	case <-h.ctx.Done():
-		// closed externally
-		return nil, NewConnectionClosedError(h.config.Key)
-	}
-}
-
-// sendOffer prepares local user credentials and signals them to the remote peer
-func (h *Handshaker) sendOffer() error {
-	if !h.signaler.Ready() {
-		return ErrSignalIsNotReady
-	}
-
-	iceUFrag, icePwd := h.ice.GetLocalUserCredentials()
-	offer := OfferAnswer{
-		IceCredentials:  IceCredentials{iceUFrag, icePwd},
-		WgListenPort:    h.config.LocalWgPort,
-		Version:         version.NetbirdVersion(),
-		RosenpassPubKey: h.config.RosenpassPubKey,
-		RosenpassAddr:   h.config.RosenpassAddr,
-	}
-
-	addr, err := h.relay.RelayInstanceAddress()
-	if err == nil {
-		offer.RelaySrvAddress = addr
-	}
-
-	return h.signaler.SignalOffer(offer, h.config.Key)
-}
-
-func (h *Handshaker) sendAnswer() error {
-	h.log.Debugf("sending answer")
-	uFrag, pwd := h.ice.GetLocalUserCredentials()
-
-	answer := OfferAnswer{
-		IceCredentials:  IceCredentials{uFrag, pwd},
-		WgListenPort:    h.config.LocalWgPort,
-		Version:         version.NetbirdVersion(),
-		RosenpassPubKey: h.config.RosenpassPubKey,
-		RosenpassAddr:   h.config.RosenpassAddr,
-	}
-	addr, err := h.relay.RelayInstanceAddress()
-	if err == nil {
-		answer.RelaySrvAddress = addr
-	}
-
-	err = h.signaler.SignalAnswer(answer, h.config.Key)
-	if err != nil {
-		return err
-	}
-
-	return nil
-}