Remove binary archives configuration from .goreleaser.yaml

Signed-off-by: Marc Schäfer <git@marcschaeferger.de>

Former-commit-id: 6618bb4483

.dockerignore

@@ -1,6 +1,6 @@
 .gitignore
 .dockerignore
-bin/
+newt
 *.json
 README.md
 Makefile

.github/CODEOWNERS

@@ -1 +0,0 @@
-* @oschwartz10612 @miloschwartz

.github/ISSUE_TEMPLATE/1.bug_report.yml

@@ -14,13 +14,12 @@ body:
           label: Environment
           description: Please fill out the relevant details below for your environment.
           value: |
-              - OS Type & Version:
+              - OS Type & Version: (e.g., Ubuntu 22.04)
               - Pangolin Version:
-              - Edition (Community or Enterprise):
               - Gerbil Version:
               - Traefik Version:
               - Newt Version:
-              - Client Version:
+              - Olm Version: (if applicable)
       validations:
           required: true
 

.github/dependabot.yml

@@ -1,32 +1,40 @@
 version: 2
-
 updates:
   - package-ecosystem: "gomod"
     directory: "/"
     schedule:
       interval: "daily"
-    open-pull-requests-limit: 1
     groups:
-      go-dependencies:
-        patterns:
-          - "*"
+      dev-patch-updates:
+        dependency-type: "development"
+        update-types:
+          - "patch"
+      dev-minor-updates:
+        dependency-type: "development"
+        update-types:
+          - "minor"
+      prod-patch-updates:
+        dependency-type: "production"
+        update-types:
+          - "patch"
+      prod-minor-updates:
+        dependency-type: "production"
+        update-types:
+          - "minor"
 
   - package-ecosystem: "docker"
     directory: "/"
     schedule:
       interval: "daily"
-    open-pull-requests-limit: 1
     groups:
-      docker-dependencies:
-        patterns:
-          - "*"
+      patch-updates:
+        update-types:
+          - "patch"
+      minor-updates:
+        update-types:
+          - "minor"
 
   - package-ecosystem: "github-actions"
     directory: "/"
     schedule:
       interval: "weekly"
-    open-pull-requests-limit: 1
-    groups:
-      github-actions-dependencies:
-        patterns:
-          - "*"

.github/workflows/mirror.yaml

@@ -1,20 +1,28 @@
 name: Mirror & Sign (Docker Hub to GHCR)
 
 on:
-  workflow_dispatch: {}
+  workflow_dispatch:
+    inputs:
+      source_image:
+        description: "Source image (e.g., docker.io/owner/newt)"
+        required: true
+        type: string
+      dest_image:
+        description: "Destination image (e.g., ghcr.io/owner/newt)"
+        required: true
+        type: string
 
 permissions:
   contents: read
   packages: write
   id-token: write   # for keyless OIDC
 
-env:
-  SOURCE_IMAGE: docker.io/fosrl/newt
-  DEST_IMAGE: ghcr.io/${{ github.repository_owner }}/${{ github.event.repository.name }}
-
 jobs:
   mirror-and-dual-sign:
-    runs-on: amd64-runner
+    runs-on: ubuntu-24.04
+    env:
+      SOURCE_IMAGE: ${{ inputs.source_image }}
+      DEST_IMAGE: ${{ inputs.dest_image }}
     steps:
       - name: Install skopeo + jq
         run: |
@@ -23,7 +31,7 @@ jobs:
           skopeo --version
 
       - name: Install cosign
-        uses: sigstore/cosign-installer@6f9f17788090df1f26f669e9d70d6ae9567deba6 # v4.1.2
+        uses: sigstore/cosign-installer@faadad0cce49287aee09b3a48701e75088a2c6ad # v4.0.0
 
       - name: Input check
         run: |

.github/workflows/nix-build.yml

@@ -13,7 +13,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
 
       - name: Install Nix
         uses: DeterminateSystems/nix-installer-action@main

.github/workflows/nix-dependabot-update-hash.yml

@@ -16,7 +16,7 @@ jobs:
 
     steps:
       - name: Checkout repository
-        uses: actions/checkout@v7
+        uses: actions/checkout@v6
         with:
           ref: ${{ github.head_ref }}
           token: ${{ secrets.GITHUB_TOKEN }}

.github/workflows/publish-apt.yml

@@ -0,0 +1,64 @@
+name: Publish APT repo to S3/CloudFront
+
+on:
+  release:
+    types: [published]
+  push:
+    tags:
+      - "[0-9]+.[0-9]+.[0-9]+"
+      - "[0-9]+.[0-9]+.[0-9]+-rc.[0-9]+"
+  workflow_dispatch:
+    inputs:
+      tag:
+        description: "Tag to publish (e.g. 1.9.0). Leave empty to use latest release."
+        required: false
+        type: string
+      backfill_all:
+        description: "Build/publish repo for ALL releases."
+        required: false
+        default: false
+        type: boolean
+
+permissions:
+  id-token: write
+  contents: read
+
+jobs:
+  publish:
+    runs-on: ubuntu-24.04
+    env:
+      PKG_NAME: newt
+      SUITE: stable
+      COMPONENT: main
+      REPO_BASE_URL: https://repo.dev.fosrl.io/apt
+
+      AWS_REGION: ${{ vars.AWS_REGION }}
+      S3_BUCKET: ${{ vars.S3_BUCKET }}
+      S3_PREFIX: ${{ vars.S3_PREFIX }}
+      CLOUDFRONT_DISTRIBUTION_ID: ${{ vars.CLOUDFRONT_DISTRIBUTION_ID }}
+
+      INPUT_TAG: ${{ inputs.tag }}
+      BACKFILL_ALL: ${{ inputs.backfill_all }}
+      EVENT_TAG: ${{ github.event.release.tag_name }}
+      PUSH_TAG: ${{ github.ref_name }}
+      GH_REPO: ${{ github.repository }}
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v4
+
+      - name: Configure AWS credentials (OIDC)
+        uses: aws-actions/configure-aws-credentials@v4
+        with:
+          role-to-assume: ${{ secrets.AWS_ROLE_ARN }}
+          aws-region: ${{ vars.AWS_REGION }}
+
+      - name: Install dependencies
+        run: sudo apt-get update && sudo apt-get install -y dpkg-dev apt-utils gnupg curl jq gh
+
+      - name: Publish APT repo
+        env:
+          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+          APT_GPG_PRIVATE_KEY: ${{ secrets.APT_GPG_PRIVATE_KEY }}
+          APT_GPG_PASSPHRASE: ${{ secrets.APT_GPG_PASSPHRASE }}
+        run: ./scripts/publish-apt.sh

.github/workflows/stale-bot.yml

@@ -14,7 +14,7 @@ jobs:
   stale:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/stale@eb5cf3af3ac0a1aa4c9c45633dd1ae542a27a899 # v10.3.0
+      - uses: actions/stale@997185467fa4f803885201cee163a9f38240193d # v10.1.1
         with:
           days-before-stale: 14
           days-before-close: 14

.github/workflows/test.yml

@@ -10,27 +10,13 @@ on:
       - dev
 
 jobs:
-  test:
-    runs-on: ubuntu-latest
-    steps:
-      - name: Checkout repository
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
-
-      - name: Set up Go
-        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
-        with:
-          go-version-file: go.mod
-
-      - name: Run Go tests
-        run: make test
-
   build:
     runs-on: ubuntu-latest
     strategy:
       matrix:
         target:
           - local
-          - docker-build
+          #- docker-build
           - go-build-release-darwin-amd64
           - go-build-release-darwin-arm64
           - go-build-release-freebsd-amd64
@@ -42,12 +28,12 @@ jobs:
           - go-build-release-windows-amd64
     steps:
       - name: Checkout repository
-        uses: actions/checkout@9c091bb21b7c1c1d1991bb908d89e4e9dddfe3e0 # v7.0.0
+        uses: actions/checkout@8e8c483db84b4bee98b60c0593521ed34d9990e8 # v6.0.1
 
       - name: Set up Go
-        uses: actions/setup-go@924ae3a1cded613372ab5595356fb5720e22ba16 # v6.5.0
+        uses: actions/setup-go@4dc6199c7b1a012772edbd06daecab0f50c9053c # v6.1.0
         with:
-          go-version-file: go.mod
+          go-version: 1.25
 
       - name: Build targets via `make`
         run: make ${{ matrix.target }}

.goreleaser.yaml

@@ -0,0 +1,43 @@
+version: 2
+project_name: newt
+
+release:
+  draft: true
+  prerelease: "{{ contains .Tag \"-rc.\" }}"
+  name_template: "{{ .Tag }}"
+
+builds:
+  - id: newt
+    main: ./main.go
+    binary: newt
+    env:
+      - CGO_ENABLED=0
+    goos:
+      - linux
+    goarch:
+      - amd64
+      - arm64
+    flags:
+      - -trimpath
+    ldflags:
+      - -s -w -X main.newtVersion={{ .Tag }}
+
+checksum:
+  name_template: "checksums.txt"
+
+nfpms:
+  - id: packages
+    package_name: newt
+    vendor: fosrl
+    maintainer: fosrl <repo@fosrl.io>
+    description: Newt - userspace tunnel client and TCP/UDP proxy
+    license: AGPL-3.0-or-later
+    formats:
+      - deb
+      - rpm
+      - apk
+    bindir: /usr/bin
+    file_name_template: "newt_{{ .Version }}_{{ .Arch }}"
+    contents:
+      - src: LICENSE
+        dst: /usr/share/doc/newt/LICENSE

Dockerfile

@@ -1,5 +1,4 @@
-# FROM golang:1.25-alpine AS builder
-FROM public.ecr.aws/docker/library/golang:1.25-alpine AS builder
+FROM golang:1.25-alpine AS builder
 
 # Install git and ca-certificates
 RUN apk --no-cache add ca-certificates git tzdata
@@ -17,20 +16,15 @@ RUN go mod download
 COPY . .
 
 # Build the application
-ARG VERSION=dev
-RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w -X main.newtVersion=${VERSION}" -o /newt
+RUN CGO_ENABLED=0 GOOS=linux go build -ldflags="-s -w" -o /newt
 
-FROM public.ecr.aws/docker/library/alpine:3.23 AS runner
+FROM alpine:3.23 AS runner
 
 RUN apk --no-cache add ca-certificates tzdata iputils
 
 COPY --from=builder /newt /usr/local/bin/
 COPY entrypoint.sh /
 
-# Marks this as an official Fossorial container image.
-# Auto-update is disabled in official images — update by pulling a new image tag.
-ENV NEWT_SYSTEM_SUBSTRATE="CONTAINER"
-
 # Admin/metrics endpoint (Prometheus scrape)
 EXPOSE 2112
 

Makefile

@@ -1,15 +1,9 @@
-.PHONY: all local test docker-build docker-build-release
+.PHONY: all local docker-build docker-build-release
 
 all: local
 
-VERSION ?= dev
-LDFLAGS = -X main.newtVersion=$(VERSION)
-
 local:
-	CGO_ENABLED=0 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=$(shell go env GOOS)_$(shell go env GOARCH)" -o ./bin/newt
-
-test:
-	go test ./...
+	CGO_ENABLED=0 go build -o ./bin/newt
 
 docker-build:
 	docker build -t fosrl/newt:latest .
@@ -46,31 +40,31 @@ go-build-release: \
     go-build-release-freebsd-arm64
 
 go-build-release-linux-arm64:
-	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=linux_arm64" -o bin/newt_linux_arm64
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build -o bin/newt_linux_arm64
 
 go-build-release-linux-arm32-v7:
-	CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=7 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=linux_arm32" -o bin/newt_linux_arm32
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=7 go build -o bin/newt_linux_arm32
 
 go-build-release-linux-arm32-v6:
-	CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=6 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=linux_arm32v6" -o bin/newt_linux_arm32v6
+	CGO_ENABLED=0 GOOS=linux GOARCH=arm GOARM=6 go build -o bin/newt_linux_arm32v6
 
 go-build-release-linux-amd64:
-	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=linux_amd64" -o bin/newt_linux_amd64
+	CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -o bin/newt_linux_amd64
 
 go-build-release-linux-riscv64:
-	CGO_ENABLED=0 GOOS=linux GOARCH=riscv64 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=linux_riscv64" -o bin/newt_linux_riscv64
+	CGO_ENABLED=0 GOOS=linux GOARCH=riscv64 go build -o bin/newt_linux_riscv64
 
 go-build-release-darwin-arm64:
-	CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=darwin_arm64" -o bin/newt_darwin_arm64
+	CGO_ENABLED=0 GOOS=darwin GOARCH=arm64 go build -o bin/newt_darwin_arm64
 
 go-build-release-darwin-amd64:
-	CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=darwin_amd64" -o bin/newt_darwin_amd64
+	CGO_ENABLED=0 GOOS=darwin GOARCH=amd64 go build -o bin/newt_darwin_amd64
 
 go-build-release-windows-amd64:
-	CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=windows_amd64" -o bin/newt_windows_amd64.exe
+	CGO_ENABLED=0 GOOS=windows GOARCH=amd64 go build -o bin/newt_windows_amd64.exe
 
 go-build-release-freebsd-amd64:
-	CGO_ENABLED=0 GOOS=freebsd GOARCH=amd64 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=freebsd_amd64" -o bin/newt_freebsd_amd64
+	CGO_ENABLED=0 GOOS=freebsd GOARCH=amd64 go build -o bin/newt_freebsd_amd64
 
 go-build-release-freebsd-arm64:
-	CGO_ENABLED=0 GOOS=freebsd GOARCH=arm64 go build -ldflags "$(LDFLAGS) -X main.newtPlatform=freebsd_arm64" -o bin/newt_freebsd_arm64
+	CGO_ENABLED=0 GOOS=freebsd GOARCH=arm64 go build -o bin/newt_freebsd_arm64

README.md

@@ -1,15 +1,24 @@
 # Newt
+
 [![PkgGoDev](https://pkg.go.dev/badge/github.com/fosrl/newt)](https://pkg.go.dev/github.com/fosrl/newt)
 [![GitHub License](https://img.shields.io/github/license/fosrl/newt)](https://github.com/fosrl/newt/blob/main/LICENSE)
 [![Go Report Card](https://goreportcard.com/badge/github.com/fosrl/newt)](https://goreportcard.com/report/github.com/fosrl/newt)
 
 Newt is a fully user space [WireGuard](https://www.wireguard.com/) tunnel client and TCP/UDP proxy, designed to securely expose private resources controlled by Pangolin. By using Newt, you don't need to manage complex WireGuard tunnels and NATing.
 
-### Installation and Documentation
+## Installation and Documentation
 
 Newt is used with Pangolin and Gerbil as part of the larger system. See documentation below:
 
--   [Full Documentation](https://docs.pangolin.net/manage/sites/understanding-sites)
+- [Full Documentation](https://docs.pangolin.net/manage/sites/understanding-sites)
+
+### Install via APT (Debian/Ubuntu)
+
+```bash
+curl -fsSL https://repo.dev.fosrl.io/apt/public.key | sudo gpg --dearmor -o /usr/share/keyrings/newt-archive-keyring.gpg
+echo "deb [signed-by=/usr/share/keyrings/newt-archive-keyring.gpg] https://repo.dev.fosrl.io/apt stable main" | sudo tee /etc/apt/sources.list.d/newt.list
+sudo apt update && sudo apt install newt
+```
 
 ## Key Functions
 

authdaemon.go

@@ -1,10 +1,14 @@
 package main
 
 import (
+	"context"
+	"errors"
 	"fmt"
 	"os"
+	"runtime"
 
 	"github.com/fosrl/newt/authdaemon"
+	"github.com/fosrl/newt/logger"
 )
 
 const (
@@ -12,6 +16,65 @@ const (
 	defaultCACertPath     = "/etc/ssh/ca.pem"
 )
 
+var (
+	errPresharedKeyRequired = errors.New("auth-daemon-key is required when --auth-daemon is enabled")
+	errRootRequired         = errors.New("auth-daemon must be run as root (use sudo)")
+	authDaemonServer        *authdaemon.Server // Global auth daemon server instance
+)
+
+// startAuthDaemon initializes and starts the auth daemon in the background.
+// It validates requirements (Linux, root, preshared key) and starts the server
+// in a goroutine so it runs alongside normal newt operation.
+func startAuthDaemon(ctx context.Context) error {
+	// Validation
+	if runtime.GOOS != "linux" {
+		return fmt.Errorf("auth-daemon is only supported on Linux, not %s", runtime.GOOS)
+	}
+	if os.Geteuid() != 0 {
+		return errRootRequired
+	}
+
+	// Use defaults if not set
+	principalsFile := authDaemonPrincipalsFile
+	if principalsFile == "" {
+		principalsFile = defaultPrincipalsPath
+	}
+	caCertPath := authDaemonCACertPath
+	if caCertPath == "" {
+		caCertPath = defaultCACertPath
+	}
+
+	// Create auth daemon server
+	cfg := authdaemon.Config{
+		DisableHTTPS:       true, // We run without HTTP server in newt
+		PresharedKey:       "this-key-is-not-used",   // Not used in embedded mode, but set to non-empty to satisfy validation
+		PrincipalsFilePath: principalsFile,
+		CACertPath:         caCertPath,
+		Force:              true,
+	}
+
+	srv, err := authdaemon.NewServer(cfg)
+	if err != nil {
+		return fmt.Errorf("create auth daemon server: %w", err)
+	}
+
+	authDaemonServer = srv
+
+	// Start the auth daemon in a goroutine so it runs alongside newt
+	go func() {
+		logger.Info("Auth daemon starting (native mode, no HTTP server)")
+		if err := srv.Run(ctx); err != nil {
+			logger.Error("Auth daemon error: %v", err)
+		}
+		logger.Info("Auth daemon stopped")
+	}()
+
+	return nil
+}
+
+
+
+// runPrincipalsCmd executes the principals subcommand logic
 func runPrincipalsCmd(args []string) {
 	opts := struct {
 		PrincipalsFile string
@@ -20,6 +83,7 @@ func runPrincipalsCmd(args []string) {
 		PrincipalsFile: defaultPrincipalsPath,
 	}
 
+	// Parse flags manually
 	for i := 0; i < len(args); i++ {
 		switch args[i] {
 		case "--principals-file":
@@ -46,12 +110,14 @@ func runPrincipalsCmd(args []string) {
 		}
 	}
 
+	// Validation
 	if opts.Username == "" {
 		fmt.Fprintf(os.Stderr, "Error: username is required\n")
 		printPrincipalsHelp()
 		os.Exit(1)
 	}
 
+	// Get principals
 	list, err := authdaemon.GetPrincipals(opts.PrincipalsFile, opts.Username)
 	if err != nil {
 		fmt.Fprintf(os.Stderr, "Error: %v\n", err)
@@ -82,4 +148,4 @@ Example:
   newt principals --username alice
 
 `, defaultPrincipalsPath)
-}
+}

authdaemon/connection.go

@@ -7,8 +7,8 @@ import (
 // ProcessConnection runs the same logic as POST /connection: CA cert, user create/reconcile, principals.
 // Use this when DisableHTTPS is true (e.g. embedded in Newt) instead of calling the API.
 func (s *Server) ProcessConnection(req ConnectionRequest) {
-	logger.Info("connection: niceId=%q username=%q metadata.sudoMode=%q metadata.sudoCommands=%v metadata.homedir=%v metadata.groups=%v",
-		req.NiceId, req.Username, req.Metadata.SudoMode, req.Metadata.SudoCommands, req.Metadata.Homedir, req.Metadata.Groups)
+	logger.Info("connection: niceId=%q username=%q metadata.sudo=%v metadata.homedir=%v",
+		req.NiceId, req.Username, req.Metadata.Sudo, req.Metadata.Homedir)
 
 	cfg := &s.cfg
 	if cfg.CACertPath != "" {
@@ -16,10 +16,10 @@ func (s *Server) ProcessConnection(req ConnectionRequest) {
 			logger.Warn("auth-daemon: write CA cert: %v", err)
 		}
 	}
-	if err := ensureUser(req.Username, req.Metadata, s.cfg.GenerateRandomPassword); err != nil {
+	if err := ensureUser(req.Username, req.Metadata); err != nil {
 		logger.Warn("auth-daemon: ensure user: %v", err)
 	}
-	if cfg.PrincipalsFilePath != "" && req.NiceId != "" {
+	if cfg.PrincipalsFilePath != "" {
 		if err := writePrincipals(cfg.PrincipalsFilePath, req.Username, req.NiceId); err != nil {
 			logger.Warn("auth-daemon: write principals: %v", err)
 		}

authdaemon/host_linux.go

@@ -4,8 +4,6 @@ package authdaemon
 
 import (
 	"bufio"
-	"crypto/rand"
-	"encoding/hex"
 	"encoding/json"
 	"fmt"
 	"os"
@@ -124,73 +122,8 @@ func sudoGroup() string {
 	return "sudo"
 }
 
-// setRandomPassword generates a random password and sets it for username via chpasswd.
-// Used when GenerateRandomPassword is true so SSH with PermitEmptyPasswords no can accept the user.
-func setRandomPassword(username string) error {
-	b := make([]byte, 16)
-	if _, err := rand.Read(b); err != nil {
-		return fmt.Errorf("generate password: %w", err)
-	}
-	password := hex.EncodeToString(b)
-	cmd := exec.Command("chpasswd")
-	cmd.Stdin = strings.NewReader(username + ":" + password)
-	if out, err := cmd.CombinedOutput(); err != nil {
-		return fmt.Errorf("chpasswd: %w (output: %s)", err, string(out))
-	}
-	return nil
-}
-
-const skelDir = "/etc/skel"
-
-// copySkelInto copies files from srcDir (e.g. /etc/skel) into dstDir (e.g. user's home).
-// Only creates files that don't already exist. All created paths are chowned to uid:gid.
-func copySkelInto(srcDir, dstDir string, uid, gid int) {
-	entries, err := os.ReadDir(srcDir)
-	if err != nil {
-		if !os.IsNotExist(err) {
-			logger.Warn("auth-daemon: read %s: %v", srcDir, err)
-		}
-		return
-	}
-	for _, e := range entries {
-		name := e.Name()
-		src := filepath.Join(srcDir, name)
-		dst := filepath.Join(dstDir, name)
-		if e.IsDir() {
-			if st, err := os.Stat(dst); err == nil && st.IsDir() {
-				copySkelInto(src, dst, uid, gid)
-				continue
-			}
-			if err := os.MkdirAll(dst, 0755); err != nil {
-				logger.Warn("auth-daemon: mkdir %s: %v", dst, err)
-				continue
-			}
-			if err := os.Chown(dst, uid, gid); err != nil {
-				logger.Warn("auth-daemon: chown %s: %v", dst, err)
-			}
-			copySkelInto(src, dst, uid, gid)
-			continue
-		}
-		if _, err := os.Stat(dst); err == nil {
-			continue
-		}
-		data, err := os.ReadFile(src)
-		if err != nil {
-			logger.Warn("auth-daemon: read %s: %v", src, err)
-			continue
-		}
-		if err := os.WriteFile(dst, data, 0644); err != nil {
-			logger.Warn("auth-daemon: write %s: %v", dst, err)
-			continue
-		}
-		if err := os.Chown(dst, uid, gid); err != nil {
-			logger.Warn("auth-daemon: chown %s: %v", dst, err)
-		}
-	}
-}
-
 // ensureUser creates the system user if missing, or reconciles sudo and homedir to match meta.
-func ensureUser(username string, meta ConnectionMetadata, generateRandomPassword bool) error {
+func ensureUser(username string, meta ConnectionMetadata) error {
 	if username == "" {
 		return nil
 	}
@@ -199,49 +132,12 @@ func ensureUser(username string, meta ConnectionMetadata, generateRandomPassword
 		if _, ok := err.(user.UnknownUserError); !ok {
 			return fmt.Errorf("lookup user %s: %w", username, err)
 		}
-		return createUser(username, meta, generateRandomPassword)
+		return createUser(username, meta)
 	}
 	return reconcileUser(u, meta)
 }
 
-// desiredGroups returns the exact list of supplementary groups the user should have:
-// meta.Groups plus the sudo group when meta.SudoMode is "full" (deduped).
-func desiredGroups(meta ConnectionMetadata) []string {
-	seen := make(map[string]struct{})
-	var out []string
-	for _, g := range meta.Groups {
-		g = strings.TrimSpace(g)
-		if g == "" {
-			continue
-		}
-		if _, ok := seen[g]; ok {
-			continue
-		}
-		seen[g] = struct{}{}
-		out = append(out, g)
-	}
-	if meta.SudoMode == "full" {
-		sg := sudoGroup()
-		if _, ok := seen[sg]; !ok {
-			out = append(out, sg)
-		}
-	}
-	return out
-}
-
-// setUserGroups sets the user's supplementary groups to exactly groups (local mirrors metadata).
-// When groups is empty, clears all supplementary groups (usermod -G "").
-func setUserGroups(username string, groups []string) {
-	list := strings.Join(groups, ",")
-	cmd := exec.Command("usermod", "-G", list, username)
-	if out, err := cmd.CombinedOutput(); err != nil {
-		logger.Warn("auth-daemon: usermod -G %s: %v (output: %s)", list, err, string(out))
-	} else {
-		logger.Info("auth-daemon: set %s supplementary groups to %s", username, list)
-	}
-}
-
-func createUser(username string, meta ConnectionMetadata, generateRandomPassword bool) error {
+func createUser(username string, meta ConnectionMetadata) error {
 	args := []string{"-s", "/bin/bash"}
 	if meta.Homedir {
 		args = append(args, "-m")
@@ -254,143 +150,75 @@ func createUser(username string, meta ConnectionMetadata, generateRandomPassword
 		return fmt.Errorf("useradd %s: %w (output: %s)", username, err, string(out))
 	}
 	logger.Info("auth-daemon: created user %s (homedir=%v)", username, meta.Homedir)
-	if generateRandomPassword {
-		if err := setRandomPassword(username); err != nil {
-			logger.Warn("auth-daemon: set random password for %s: %v", username, err)
+	if meta.Sudo {
+		group := sudoGroup()
+		cmd := exec.Command("usermod", "-aG", group, username)
+		if out, err := cmd.CombinedOutput(); err != nil {
+			logger.Warn("auth-daemon: usermod -aG %s %s: %v (output: %s)", group, username, err, string(out))
 		} else {
-			logger.Info("auth-daemon: set random password for %s (PermitEmptyPasswords no)", username)
+			logger.Info("auth-daemon: added %s to %s", username, group)
 		}
 	}
-	if meta.Homedir {
-		if u, err := user.Lookup(username); err == nil && u.HomeDir != "" {
-			uid, gid := mustAtoi(u.Uid), mustAtoi(u.Gid)
-			copySkelInto(skelDir, u.HomeDir, uid, gid)
-		}
-	}
-	setUserGroups(username, desiredGroups(meta))
-	switch meta.SudoMode {
-	case "full":
-		if err := configurePasswordlessSudo(username); err != nil {
-			logger.Warn("auth-daemon: configure passwordless sudo for %s: %v", username, err)
-		}
-	case "commands":
-		if len(meta.SudoCommands) > 0 {
-			if err := configureSudoCommands(username, meta.SudoCommands); err != nil {
-				logger.Warn("auth-daemon: configure sudo commands for %s: %v", username, err)
-			}
-		}
-	default:
-		removeSudoers(username)
-	}
 	return nil
 }
 
-const sudoersFilePrefix = "90-pangolin-"
-
-func sudoersPath(username string) string {
-	return filepath.Join("/etc/sudoers.d", sudoersFilePrefix+username)
-}
-
-// writeSudoersFile writes content to the user's sudoers.d file and validates with visudo.
-func writeSudoersFile(username, content string) error {
-	sudoersFile := sudoersPath(username)
-	tmpFile := sudoersFile + ".tmp"
-	if err := os.WriteFile(tmpFile, []byte(content), 0440); err != nil {
-		return fmt.Errorf("write temp sudoers file: %w", err)
-	}
-	cmd := exec.Command("visudo", "-c", "-f", tmpFile)
-	if out, err := cmd.CombinedOutput(); err != nil {
-		os.Remove(tmpFile)
-		return fmt.Errorf("visudo validation failed: %w (output: %s)", err, string(out))
-	}
-	if err := os.Rename(tmpFile, sudoersFile); err != nil {
-		os.Remove(tmpFile)
-		return fmt.Errorf("move sudoers file: %w", err)
-	}
-	return nil
-}
-
-// configurePasswordlessSudo creates a sudoers.d file to allow passwordless sudo for the user.
-func configurePasswordlessSudo(username string) error {
-	content := fmt.Sprintf("# Created by Pangolin auth-daemon\n%s ALL=(ALL) NOPASSWD:ALL\n", username)
-	if err := writeSudoersFile(username, content); err != nil {
-		return err
-	}
-	logger.Info("auth-daemon: configured passwordless sudo for %s", username)
-	return nil
-}
-
-// configureSudoCommands creates a sudoers.d file allowing only the listed commands (NOPASSWD).
-// Each command should be a full path (e.g. /usr/bin/systemctl).
-func configureSudoCommands(username string, commands []string) error {
-	var b strings.Builder
-	b.WriteString("# Created by Pangolin auth-daemon (restricted commands)\n")
-	n := 0
-	for _, c := range commands {
-		c = strings.TrimSpace(c)
-		if c == "" {
-			continue
-		}
-		fmt.Fprintf(&b, "%s ALL=(ALL) NOPASSWD: %s\n", username, c)
-		n++
-	}
-	if n == 0 {
-		return fmt.Errorf("no valid sudo commands")
-	}
-	if err := writeSudoersFile(username, b.String()); err != nil {
-		return err
-	}
-	logger.Info("auth-daemon: configured restricted sudo for %s (%d commands)", username, len(commands))
-	return nil
-}
-
-// removeSudoers removes the sudoers.d file for the user.
-func removeSudoers(username string) {
-	sudoersFile := sudoersPath(username)
-	if err := os.Remove(sudoersFile); err != nil && !os.IsNotExist(err) {
-		logger.Warn("auth-daemon: remove sudoers for %s: %v", username, err)
-	} else if err == nil {
-		logger.Info("auth-daemon: removed sudoers for %s", username)
-	}
-}
-
 func mustAtoi(s string) int {
 	n, _ := strconv.Atoi(s)
 	return n
 }
 
 func reconcileUser(u *user.User, meta ConnectionMetadata) error {
-	setUserGroups(u.Username, desiredGroups(meta))
-	switch meta.SudoMode {
-	case "full":
-		if err := configurePasswordlessSudo(u.Username); err != nil {
-			logger.Warn("auth-daemon: configure passwordless sudo for %s: %v", u.Username, err)
-		}
-	case "commands":
-		if len(meta.SudoCommands) > 0 {
-			if err := configureSudoCommands(u.Username, meta.SudoCommands); err != nil {
-				logger.Warn("auth-daemon: configure sudo commands for %s: %v", u.Username, err)
-			}
+	group := sudoGroup()
+	inGroup, err := userInGroup(u.Username, group)
+	if err != nil {
+		logger.Warn("auth-daemon: check group %s: %v", group, err)
+		inGroup = false
+	}
+	if meta.Sudo && !inGroup {
+		cmd := exec.Command("usermod", "-aG", group, u.Username)
+		if out, err := cmd.CombinedOutput(); err != nil {
+			logger.Warn("auth-daemon: usermod -aG %s %s: %v (output: %s)", group, u.Username, err, string(out))
 		} else {
-			removeSudoers(u.Username)
+			logger.Info("auth-daemon: added %s to %s", u.Username, group)
+		}
+	} else if !meta.Sudo && inGroup {
+		cmd := exec.Command("gpasswd", "-d", u.Username, group)
+		if out, err := cmd.CombinedOutput(); err != nil {
+			logger.Warn("auth-daemon: gpasswd -d %s %s: %v (output: %s)", u.Username, group, err, string(out))
+		} else {
+			logger.Info("auth-daemon: removed %s from %s", u.Username, group)
 		}
-	default:
-		removeSudoers(u.Username)
 	}
 	if meta.Homedir && u.HomeDir != "" {
-		uid, gid := mustAtoi(u.Uid), mustAtoi(u.Gid)
 		if st, err := os.Stat(u.HomeDir); err != nil || !st.IsDir() {
 			if err := os.MkdirAll(u.HomeDir, 0755); err != nil {
 				logger.Warn("auth-daemon: mkdir %s: %v", u.HomeDir, err)
 			} else {
+				uid, gid := mustAtoi(u.Uid), mustAtoi(u.Gid)
 				_ = os.Chown(u.HomeDir, uid, gid)
-				copySkelInto(skelDir, u.HomeDir, uid, gid)
 				logger.Info("auth-daemon: created home %s for %s", u.HomeDir, u.Username)
 			}
-		} else {
-			// Ensure .bashrc etc. exist (e.g. home existed but was empty or skel was minimal)
-			copySkelInto(skelDir, u.HomeDir, uid, gid)
 		}
 	}
 	return nil
 }
+
+func userInGroup(username, groupName string) (bool, error) {
+	// getent group wheel returns "wheel:x:10:user1,user2"
+	cmd := exec.Command("getent", "group", groupName)
+	out, err := cmd.Output()
+	if err != nil {
+		return false, err
+	}
+	parts := strings.SplitN(strings.TrimSpace(string(out)), ":", 4)
+	if len(parts) < 4 {
+		return false, nil
+	}
+	members := strings.Split(parts[3], ",")
+	for _, m := range members {
+		if strings.TrimSpace(m) == username {
+			return true, nil
+		}
+	}
+	return false, nil
+}

authdaemon/host_stub.go

@@ -12,7 +12,7 @@ func writeCACertIfNotExists(path, contents string, force bool) error {
 }
 
 // ensureUser returns an error on non-Linux.
-func ensureUser(username string, meta ConnectionMetadata, generateRandomPassword bool) error {
+func ensureUser(username string, meta ConnectionMetadata) error {
 	return errLinuxOnly
 }
 

authdaemon/routes.go

@@ -13,10 +13,8 @@ func (s *Server) registerRoutes() {
 
 // ConnectionMetadata is the metadata object in POST /connection.
 type ConnectionMetadata struct {
-	SudoMode     string   `json:"sudoMode"`     // "none" | "full" | "commands"
-	SudoCommands []string `json:"sudoCommands"` // used when sudoMode is "commands"
-	Homedir      bool     `json:"homedir"`
-	Groups       []string `json:"groups"` // system groups to add the user to
+	Sudo    bool `json:"sudo"`
+	Homedir bool `json:"homedir"`
 }
 
 // ConnectionRequest is the JSON body for POST /connection.

authdaemon/server.go

@@ -23,13 +23,12 @@ import (
 
 type Config struct {
 	// DisableHTTPS: when true, Run() does not start the HTTPS server (for embedded use inside Newt). Call ProcessConnection directly for connection events.
-	DisableHTTPS           bool
-	Port                   int    // Required when DisableHTTPS is false. Listen port for the HTTPS server. No default.
-	PresharedKey           string // Required when DisableHTTPS is false. HTTP auth (Authorization: Bearer <key> or X-Preshared-Key: <key>). No default.
-	CACertPath             string // Required. Where to write the CA cert (e.g. /etc/ssh/ca.pem). No default.
-	Force                  bool   // If true, overwrite existing CA cert (and other items) when content differs. Default false.
-	PrincipalsFilePath     string // Required. Path to the principals data file (JSON: username -> array of principals). No default.
-	GenerateRandomPassword bool   // If true, set a random password on users when they are provisioned (for SSH PermitEmptyPasswords no).
+	DisableHTTPS       bool
+	Port               int    // Required when DisableHTTPS is false. Listen port for the HTTPS server. No default.
+	PresharedKey       string // Required when DisableHTTPS is false. HTTP auth (Authorization: Bearer <key> or X-Preshared-Key: <key>). No default.
+	CACertPath         string // Required. Where to write the CA cert (e.g. /etc/ssh/ca.pem). No default.
+	Force              bool   // If true, overwrite existing CA cert (and other items) when content differs. Default false.
+	PrincipalsFilePath string // Required. Path to the principals data file (JSON: username -> array of principals). No default.
 }
 
 type Server struct {
@@ -136,7 +135,7 @@ func NewServer(cfg Config) (*Server, error) {
 // When DisableHTTPS is true, Run() blocks on ctx only and does not listen; use ProcessConnection for connection events.
 func (s *Server) Run(ctx context.Context) error {
 	if s.cfg.DisableHTTPS {
-		logger.Debug("auth-daemon running (HTTPS disabled)")
+		logger.Info("auth-daemon running (HTTPS disabled)")
 		<-ctx.Done()
 		s.cleanupPrincipalsFile()
 		return nil

blueprint.yaml

@@ -0,0 +1,37 @@
+resources:
+  resource-nice-id:
+    name: this is my resource
+    protocol: http
+    full-domain: level1.test3.example.com
+    host-header: example.com
+    tls-server-name: example.com
+    auth:
+      pincode: 123456
+      password: sadfasdfadsf
+      sso-enabled: true
+      sso-roles:
+      - Member
+      sso-users:
+      - owen@pangolin.net
+      whitelist-users:
+      - owen@pangolin.net
+    targets:
+    # - site: glossy-plains-viscacha-rat
+    - hostname: localhost
+      method: http
+      port: 8000
+      healthcheck:
+        port: 8000
+        hostname: localhost
+    # - site: glossy-plains-viscacha-rat
+    - hostname: localhost
+      method: http
+      port: 8001
+  resource-nice-id2:
+    name: this is other resource
+    protocol: tcp
+    proxy-port: 3000
+    targets:
+    # - site: glossy-plains-viscacha-rat
+    - hostname: localhost
+      port: 3000

browsergateway/browsergateway.go

@@ -1,144 +0,0 @@
-package browsergateway
-
-import (
-	"crypto/subtle"
-	"errors"
-	"net"
-	"net/http"
-	"strings"
-	"sync"
-
-	"github.com/fosrl/newt/nativessh"
-)
-
-// Forwarding buffer size. RDP graphics traffic is bursty and TLS records cap
-// at ~16 KiB, so 64 KiB lets a couple of records pile up per syscall/frame
-// without wasting memory per session.
-const forwardBufSize = 64 * 1024
-
-// ListenPort is the port the browser gateway HTTP server listens on inside the
-// WireGuard netstack. This is a fixed value shared between newt and pangolin.
-// Targets do not overlap with this port because they start at 40000.
-const ListenPort = 39999
-
-// Target represents an allowed proxy destination for the browser gateway.
-// Only connections whose (Type, Destination, DestinationPort, AuthToken) match a
-// registered Target will be forwarded; all others are rejected.
-type Target struct {
-	ID              int
-	Type            string // "rdp" | "ssh" | "vnc"
-	Destination     string
-	DestinationPort int
-	AuthToken       string // per-target secret; must match the token supplied by the client
-}
-
-// Config holds the configuration for a Gateway.
-type Config struct {
-	// AuthToken is used only for NativeSSH mode (which has no external target
-	// to match against). For all proxy targets (RDP/SSH/VNC), auth tokens are
-	// stored per-Target and validated by isAllowed.
-	AuthToken string
-	// SSHCredentials are used by native SSH browser sessions for certificate
-	// validation against the in-memory CA/principal store.
-	SSHCredentials *nativessh.CredentialStore
-}
-
-// Gateway is a browser-based RDP/SSH/VNC WebSocket proxy.
-// Create one with New and mount it via RegisterHandlers or the individual
-// HandleRDP / HandleSSH / HandleVNC http.HandlerFunc methods.
-type Gateway struct {
-	authToken string
-	sshCreds  *nativessh.CredentialStore
-
-	mu      sync.RWMutex
-	targets map[int]Target // keyed by Target.ID
-
-	server *http.Server
-}
-
-// New creates a new Gateway from the provided Config.
-func New(cfg Config) *Gateway {
-	return &Gateway{
-		authToken: cfg.AuthToken,
-		sshCreds:  cfg.SSHCredentials,
-		targets:   make(map[int]Target),
-	}
-}
-
-// SetTargets replaces the entire allowed-destination list atomically.
-func (g *Gateway) SetTargets(targets []Target) {
-	g.mu.Lock()
-	defer g.mu.Unlock()
-	g.targets = make(map[int]Target, len(targets))
-	for _, t := range targets {
-		g.targets[t.ID] = t
-	}
-}
-
-// AddTarget adds or updates a single allowed destination.
-func (g *Gateway) AddTarget(t Target) {
-	g.mu.Lock()
-	defer g.mu.Unlock()
-	g.targets[t.ID] = t
-}
-
-// RemoveTarget removes an allowed destination by its ID.
-func (g *Gateway) RemoveTarget(id int) {
-	g.mu.Lock()
-	defer g.mu.Unlock()
-	delete(g.targets, id)
-}
-
-// isAllowed reports whether a connection to (targetType, host, port) with the
-// given authToken is permitted. The token is compared against the per-target
-// AuthToken using constant-time comparison to prevent timing attacks.
-func (g *Gateway) isAllowed(targetType, host string, port int, authToken string) bool {
-	g.mu.RLock()
-	defer g.mu.RUnlock()
-	for _, t := range g.targets {
-		if t.Type == targetType && t.Destination == host && t.DestinationPort == port {
-			return subtle.ConstantTimeCompare([]byte(authToken), []byte(t.AuthToken)) == 1
-		}
-	}
-	return false
-}
-
-// isTokenValid reports whether the given authToken matches any registered
-// target of the specified type. Used for native SSH mode where there is no
-// external destination to match against.
-func (g *Gateway) isTokenValid(targetType, authToken string) bool {
-	g.mu.RLock()
-	defer g.mu.RUnlock()
-	for _, t := range g.targets {
-		if t.Type == targetType {
-			if subtle.ConstantTimeCompare([]byte(authToken), []byte(t.AuthToken)) == 1 {
-				return true
-			}
-		}
-	}
-	return false
-}
-
-// Start serves the browser gateway HTTP server on the provided listener.
-// It returns nil when the listener is closed (normal shutdown).
-func (g *Gateway) Start(ln net.Listener) error {
-	mux := http.NewServeMux()
-	g.RegisterHandlers(mux)
-	g.server = &http.Server{Handler: mux}
-	err := g.server.Serve(ln)
-	if err == nil ||
-		errors.Is(err, net.ErrClosed) ||
-		errors.Is(err, http.ErrServerClosed) ||
-		strings.Contains(err.Error(), "use of closed") ||
-		strings.Contains(err.Error(), "invalid state") {
-		return nil
-	}
-	return err
-}
-
-// RegisterHandlers registers the /rdp, /ssh, and /vnc routes on mux.
-func (g *Gateway) RegisterHandlers(mux *http.ServeMux) {
-	mux.HandleFunc("/gateway/rdp", g.HandleRDP)
-	mux.HandleFunc("/gateway/ssh", g.HandleSSH)
-	mux.HandleFunc("/gateway/vnc", g.handleVNC)
-}

browsergateway/rdcleanpath.go

@@ -1,88 +0,0 @@
-package browsergateway
-
-import (
-	"encoding/asn1"
-	"fmt"
-)
-
-// RDCleanPath PDU version (BASE_VERSION + 1 = 3389 + 1).
-const rdCleanPathVersion = int64(3390)
-
-// rdCleanPathPdu is a Go translation of the ASN.1 SEQUENCE defined in the
-// ironrdp-rdcleanpath crate. All optional fields use EXPLICIT context-specific
-// tagging, matching the Rust `der::Sequence` derivation with
-// `tag_mode = "EXPLICIT"`.
-//
-// We only need a subset of fields for the basic proxy flow, but the struct
-// declares every tag we may encounter so that decoding does not fail on an
-// unexpected element.
-type rdCleanPathPdu struct {
-	Version           int64    `asn1:"explicit,tag:0"`
-	Destination       string   `asn1:"explicit,tag:2,optional,utf8"`
-	ProxyAuth         string   `asn1:"explicit,tag:3,optional,utf8"`
-	ServerAuth        string   `asn1:"explicit,tag:4,optional,utf8"`
-	PreconnectionBlob string   `asn1:"explicit,tag:5,optional,utf8"`
-	X224              []byte   `asn1:"explicit,tag:6,optional"`
-	ServerCertChain   [][]byte `asn1:"explicit,tag:7,optional"`
-	ServerAddr        string   `asn1:"explicit,tag:9,optional,utf8"`
-}
-
-// decodeRDCleanPathRequest parses a client-to-proxy RDCleanPath PDU.
-func decodeRDCleanPathRequest(buf []byte) (*rdCleanPathPdu, error) {
-	var pdu rdCleanPathPdu
-	rest, err := asn1.Unmarshal(buf, &pdu)
-	if err != nil {
-		return nil, fmt.Errorf("asn1 unmarshal: %w", err)
-	}
-	if len(rest) != 0 {
-		return nil, fmt.Errorf("trailing data after RDCleanPath PDU: %d bytes", len(rest))
-	}
-	if pdu.Version != rdCleanPathVersion {
-		return nil, fmt.Errorf("unexpected RDCleanPath version: %d", pdu.Version)
-	}
-	return &pdu, nil
-}
-
-// encodeRDCleanPathResponse builds a proxy-to-client RDCleanPath response PDU
-// containing the server address, X.224 connection confirm and server TLS chain.
-func encodeRDCleanPathResponse(serverAddr string, x224Rsp []byte, certChain [][]byte) ([]byte, error) {
-	pdu := rdCleanPathPdu{
-		Version:         rdCleanPathVersion,
-		X224:            x224Rsp,
-		ServerCertChain: certChain,
-		ServerAddr:      serverAddr,
-	}
-	return asn1.Marshal(pdu)
-}
-
-// detectRDCleanPathLength returns the total DER length of an RDCleanPath PDU
-// if enough bytes are available, otherwise -1.
-//
-// The PDU is a DER SEQUENCE, which begins with the universal SEQUENCE tag
-// (0x30) followed by a length octet/octets. We parse just enough to know the
-// total length so we can buffer accordingly.
-func detectRDCleanPathLength(buf []byte) int {
-	if len(buf) < 2 {
-		return -1
-	}
-	if buf[0] != 0x30 {
-		// Not a SEQUENCE: cannot be RDCleanPath.
-		return -2
-	}
-	l := buf[1]
-	if l < 0x80 {
-		return 2 + int(l)
-	}
-	n := int(l & 0x7f)
-	if n == 0 || n > 4 {
-		return -2
-	}
-	if len(buf) < 2+n {
-		return -1
-	}
-	total := 0
-	for i := 0; i < n; i++ {
-		total = (total << 8) | int(buf[2+i])
-	}
-	return 2 + n + total
-}

browsergateway/rdp.go

@@ -1,271 +0,0 @@
-package browsergateway
-
-import (
-	"context"
-	"crypto/tls"
-	"encoding/binary"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"net/http"
-	"strconv"
-	"time"
-
-	"github.com/coder/websocket"
-	"github.com/fosrl/newt/logger"
-)
-
-// HandleRDP is an http.HandlerFunc for RDP-over-WebSocket connections.
-func (g *Gateway) HandleRDP(w http.ResponseWriter, r *http.Request) {
-	ctx := r.Context()
-	ws, err := websocket.Accept(w, r, &websocket.AcceptOptions{
-		InsecureSkipVerify: true, // any-origin: minimal dev proxy with no auth
-		Subprotocols:       []string{"binary"},
-	})
-	if err != nil {
-		logger.Debug("websocket upgrade failed: %v", err)
-		return
-	}
-	// Disable per-message read size cap (default is 32 KiB which would break
-	// large RDP graphics messages).
-	ws.SetReadLimit(-1)
-	defer ws.CloseNow() //nolint:errcheck
-
-	if err := g.serveSession(ctx, ws); err != nil {
-		logger.Debug("session error: %v", err)
-	}
-}
-
-func (g *Gateway) serveSession(ctx context.Context, ws *websocket.Conn) error {
-	// Expose the WebSocket as a streaming net.Conn. Binary messages are
-	// concatenated into a byte stream and writes become single binary frames.
-	// This is a thin wrapper with no per-message goroutine, unlike Gorilla.
-	stream := websocket.NetConn(ctx, ws, websocket.MessageBinary)
-	defer stream.Close() //nolint:errcheck
-
-	// -- Read the initial RDCleanPath request from the client --
-	pdu, err := readCleanPath(stream)
-	if err != nil {
-		return fmt.Errorf("read RDCleanPath: %w", err)
-	}
-
-	if pdu.Destination == "" {
-		return errors.New("RDCleanPath missing destination")
-	}
-	if len(pdu.X224) == 0 {
-		return errors.New("RDCleanPath missing X224 connection PDU")
-	}
-
-	target := pdu.Destination
-	// Default port for RDP if not specified.
-	if _, _, splitErr := net.SplitHostPort(target); splitErr != nil {
-		target = net.JoinHostPort(target, "3389")
-	}
-
-	// Validate destination against the registered target allowlist,
-	// including per-target auth token.
-	rdpHost, rdpPortStr, _ := net.SplitHostPort(target)
-	rdpPort, _ := strconv.Atoi(rdpPortStr)
-	if !g.isAllowed("rdp", rdpHost, rdpPort, pdu.ProxyAuth) {
-		return fmt.Errorf("RDP destination %s is not in the allowed target list or auth token mismatch", target)
-	}
-
-	logger.Debug("Connecting to RDP server %s", target)
-
-	// -- Open TCP connection to the destination RDP server --
-	serverTCP, err := net.DialTimeout("tcp", target, 15*time.Second)
-	if err != nil {
-		return fmt.Errorf("dial %s: %w", target, err)
-	}
-	defer serverTCP.Close()
-	if tcp, ok := serverTCP.(*net.TCPConn); ok {
-		// NoDelay is Go's default; set explicitly. RDP wants low latency for
-		// input echo, and the bulk path is naturally chunked by TLS records.
-		_ = tcp.SetNoDelay(true)
-		_ = tcp.SetKeepAlive(true)
-		_ = tcp.SetKeepAlivePeriod(30 * time.Second)
-		_ = tcp.SetReadBuffer(forwardBufSize)
-		_ = tcp.SetWriteBuffer(forwardBufSize)
-	}
-	serverAddr := serverTCP.RemoteAddr().String()
-
-	// Forward the optional pre-connection blob, then the X.224 connection request.
-	if pdu.PreconnectionBlob != "" {
-		if _, err := serverTCP.Write([]byte(pdu.PreconnectionBlob)); err != nil {
-			return fmt.Errorf("send PCB: %w", err)
-		}
-	}
-	if _, err := serverTCP.Write(pdu.X224); err != nil {
-		return fmt.Errorf("send X224: %w", err)
-	}
-
-	// -- Read the X.224 connection confirm from the server --
-	x224Rsp, err := readX224(serverTCP)
-	if err != nil {
-		return fmt.Errorf("read X224 response: %w", err)
-	}
-	logX224Negotiation(x224Rsp)
-
-	// -- Upgrade the server connection to TLS (skip verification) --
-	//
-	// Windows RDP hosts are picky: only set SNI when the target is a hostname
-	// (Go would skip SNI for IP literals anyway, but be explicit), and accept
-	// the full range of TLS versions / ciphers since some servers only
-	// negotiate TLS 1.0 or legacy suites.
-	host, _, _ := net.SplitHostPort(target)
-	tlsCfg := &tls.Config{
-		InsecureSkipVerify: true, //nolint:gosec // proxy intentionally skips verification
-		MinVersion:         tls.VersionTLS10,
-		// Cap at TLS 1.2: Windows RDP servers commonly send a TLS "internal_error"
-		// alert when CredSSP/NLA is layered on top of a TLS 1.3 session.
-		MaxVersion: tls.VersionTLS12,
-	}
-	if net.ParseIP(host) == nil {
-		tlsCfg.ServerName = host
-	}
-	tlsConn := tls.Client(serverTCP, tlsCfg)
-	if err := tlsConn.Handshake(); err != nil {
-		return fmt.Errorf("TLS handshake with server: %w", err)
-	}
-	logger.Debug("Server TLS handshake OK (version=0x%04x cipher=0x%04x)",
-		tlsConn.ConnectionState().Version, tlsConn.ConnectionState().CipherSuite)
-
-	// Collect the raw DER server certificate chain to return to the client.
-	state := tlsConn.ConnectionState()
-	if len(state.PeerCertificates) == 0 {
-		return errors.New("server did not present any certificates")
-	}
-	chain := make([][]byte, 0, len(state.PeerCertificates))
-	for _, c := range state.PeerCertificates {
-		chain = append(chain, c.Raw)
-	}
-
-	// -- Send the RDCleanPath response back to the client --
-	rsp, err := encodeRDCleanPathResponse(serverAddr, x224Rsp, chain)
-	if err != nil {
-		return fmt.Errorf("encode RDCleanPath response: %w", err)
-	}
-	if _, err := stream.Write(rsp); err != nil {
-		return fmt.Errorf("write RDCleanPath response: %w", err)
-	}
-
-	logger.Debug("RDCleanPath handshake complete, forwarding traffic to %s", serverAddr)
-
-	// -- Two-way blind forwarding of the (now TLS-encrypted) RDP stream --
-	return forward(stream, tlsConn)
-}
-
-// readCleanPath buffers bytes from the stream until a full RDCleanPath PDU has
-// been received, then decodes it.
-func readCleanPath(r io.Reader) (*rdCleanPathPdu, error) {
-	buf := make([]byte, 0, 1024)
-	tmp := make([]byte, 1024)
-	for {
-		total := detectRDCleanPathLength(buf)
-		switch {
-		case total == -2:
-			return nil, errors.New("invalid RDCleanPath PDU")
-		case total > 0 && len(buf) >= total:
-			return decodeRDCleanPathRequest(buf[:total])
-		}
-		n, err := r.Read(tmp)
-		if n > 0 {
-			buf = append(buf, tmp[:n]...)
-		}
-		if err != nil {
-			return nil, err
-		}
-	}
-}
-
-// readX224 reads exactly one TPKT-framed X.224 PDU from the server.
-//
-// The TPKT header is 4 bytes: version (0x03), reserved (0x00), and a u16
-// big-endian total length that includes the header itself.
-func readX224(r io.Reader) ([]byte, error) {
-	hdr := make([]byte, 4)
-	if _, err := io.ReadFull(r, hdr); err != nil {
-		return nil, err
-	}
-	if hdr[0] != 0x03 {
-		return nil, fmt.Errorf("unexpected TPKT version 0x%02x", hdr[0])
-	}
-	total := int(binary.BigEndian.Uint16(hdr[2:4]))
-	if total < 4 || total > 4096 {
-		return nil, fmt.Errorf("unreasonable TPKT length %d", total)
-	}
-	out := make([]byte, total)
-	copy(out, hdr)
-	if _, err := io.ReadFull(r, out[4:]); err != nil {
-		return nil, err
-	}
-	return out, nil
-}
-
-// logX224Negotiation prints which RDP security protocol the server selected
-// (or the failure code), to help diagnose handshake issues such as the server
-// requiring NLA/CredSSP.
-//
-// X.224 Connection Confirm layout (RFC 1006 / [MS-RDPBCGR]):
-//
-//	bytes 0..3   TPKT header (03 00 LL LL)
-//	byte  4      X.224 length indicator
-//	byte  5      X.224 code (0xD0 = CC)
-//	bytes 6..10  DST-REF, SRC-REF, class
-//	byte  11     optional RDP Negotiation type (0x02 = response, 0x03 = failure)
-//	byte  12     flags
-//	bytes 13..14 length (little-endian, =8)
-//	bytes 15..18 selected protocol / failure code (u32 little-endian)
-func logX224Negotiation(pdu []byte) {
-	if len(pdu) < 19 {
-		logger.Debug("X.224 response too short (%d bytes) to contain RDP negotiation", len(pdu))
-		return
-	}
-	switch pdu[11] {
-	case 0x02:
-		proto := uint32(pdu[15]) | uint32(pdu[16])<<8 | uint32(pdu[17])<<16 | uint32(pdu[18])<<24
-		name := "unknown"
-		switch proto {
-		case 0:
-			name = "RDP (standard)"
-		case 1:
-			name = "SSL/TLS"
-		case 2:
-			name = "HYBRID (CredSSP/NLA)"
-		case 8:
-			name = "HYBRID_EX"
-		}
-		logger.Debug("Server selected RDP protocol 0x%x (%s)", proto, name)
-	case 0x03:
-		code := uint32(pdu[15]) | uint32(pdu[16])<<8 | uint32(pdu[17])<<16 | uint32(pdu[18])<<24
-		logger.Debug("Server returned RDP negotiation failure code 0x%x", code)
-	default:
-		logger.Debug("X.224 response has no RDP negotiation block (type=0x%02x)", pdu[11])
-	}
-}
-
-// forward shuttles bytes between the two streams until either side closes.
-func forward(a, b io.ReadWriteCloser) error {
-	errc := make(chan error, 2)
-	go func() {
-		buf := make([]byte, forwardBufSize)
-		_, err := io.CopyBuffer(a, b, buf)
-		_ = a.Close()
-		_ = b.Close()
-		errc <- err
-	}()
-	go func() {
-		buf := make([]byte, forwardBufSize)
-		_, err := io.CopyBuffer(b, a, buf)
-		_ = a.Close()
-		_ = b.Close()
-		errc <- err
-	}()
-	// Wait for one side to finish, then return.
-	err := <-errc
-	if errors.Is(err, io.EOF) || err == nil {
-		return nil
-	}
-	return err
-}

browsergateway/ssh.go

@@ -1,282 +0,0 @@
-package browsergateway
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"net"
-	"net/http"
-	"strconv"
-	"time"
-
-	"github.com/coder/websocket"
-	"github.com/fosrl/newt/logger"
-	"golang.org/x/crypto/ssh"
-)
-
-// sshClientMsg is a JSON message sent from the browser to the proxy.
-type sshClientMsg struct {
-	// type: "auth" | "data" | "resize"
-	Type        string `json:"type"`
-	Password    string `json:"password,omitempty"`    // used when type="auth"
-	PrivateKey  string `json:"privateKey,omitempty"`  // used when type="auth"
-	Certificate string `json:"certificate,omitempty"` // used when type="auth"
-	Data        string `json:"data,omitempty"`        // used when type="data"
-	Cols        uint32 `json:"cols,omitempty"`        // used when type="resize"
-	Rows        uint32 `json:"rows,omitempty"`        // used when type="resize"
-}
-
-// sshServerMsg is a JSON message sent from the proxy back to the browser.
-type sshServerMsg struct {
-	// type: "data" | "error"
-	Type  string `json:"type"`
-	Data  string `json:"data,omitempty"`
-	Error string `json:"error,omitempty"`
-}
-
-// HandleSSH is an http.HandlerFunc for SSH-over-WebSocket connections.
-func (g *Gateway) HandleSSH(w http.ResponseWriter, r *http.Request) {
-	logger.Debug("SSH connection request from %s", r.RemoteAddr)
-	ctx := r.Context()
-
-	token := r.URL.Query().Get("authToken")
-
-	// "mode=native" (default) connects to the local SSH daemon on this host.
-	// "mode=proxy" connects to an arbitrary host+port supplied in query params.
-	nativeSSH := r.URL.Query().Get("mode") != "proxy"
-
-	// In proxy mode we also need host + username from query params.
-	var target, username string
-	if !nativeSSH {
-		host := r.URL.Query().Get("host")
-		port := r.URL.Query().Get("port")
-		username = r.URL.Query().Get("username")
-		if host == "" || username == "" {
-			http.Error(w, "missing host or username", http.StatusBadRequest)
-			return
-		}
-		if port == "" {
-			port = "22"
-		}
-		sshPort, _ := strconv.Atoi(port)
-		if !g.isAllowed("ssh", host, sshPort, token) {
-			http.Error(w, "destination not allowed or auth token mismatch", http.StatusForbidden)
-			return
-		}
-		target = net.JoinHostPort(host, port)
-	} else {
-		// Native SSH mode: validate the token against any registered ssh target.
-		if !g.isTokenValid("ssh", token) {
-			http.Error(w, "unauthorized", http.StatusUnauthorized)
-			return
-		}
-		username = r.URL.Query().Get("username")
-		if username == "" {
-			http.Error(w, "missing username", http.StatusBadRequest)
-			return
-		}
-	}
-
-	ws, err := websocket.Accept(w, r, &websocket.AcceptOptions{
-		InsecureSkipVerify: true,
-		Subprotocols:       []string{"ssh"},
-	})
-	if err != nil {
-		logger.Debug("SSH websocket upgrade failed: %v", err)
-		return
-	}
-	ws.SetReadLimit(-1)
-	defer ws.CloseNow() //nolint:errcheck
-
-	if nativeSSH {
-		if err := serveNativeSSHSession(ctx, ws, username, g.sshCreds); err != nil {
-			logger.Debug("SSH native session error: %v", err)
-		}
-	} else {
-		if err := serveSSHSession(ctx, ws, target, username, g.authToken); err != nil {
-			logger.Debug("SSH session error: %v", err)
-		}
-	}
-}
-
-func serveSSHSession(ctx context.Context, ws *websocket.Conn, target, username, _ string) error {
-	// -- Wait for the auth message from the client to get the password --
-	_, authBytes, err := ws.Read(ctx)
-	if err != nil {
-		return fmt.Errorf("read auth message: %w", err)
-	}
-	var authMsg sshClientMsg
-	if err := json.Unmarshal(authBytes, &authMsg); err != nil || authMsg.Type != "auth" {
-		return fmt.Errorf("expected auth message, got: %s", authBytes)
-	}
-	password := authMsg.Password
-	privateKey := authMsg.PrivateKey
-	certificate := authMsg.Certificate
-
-	// Build the list of auth methods. Certificate+private key takes priority
-	// when both are provided, then private key, then password.
-	var authMethods []ssh.AuthMethod
-	if privateKey != "" {
-		signer, err := ssh.ParsePrivateKey([]byte(privateKey))
-		if err != nil {
-			sendSSHError(ctx, ws, fmt.Sprintf("Failed to parse private key: %v", err))
-			return fmt.Errorf("parse private key: %w", err)
-		}
-
-		if certificate != "" {
-			certPubKey, _, _, _, err := ssh.ParseAuthorizedKey([]byte(certificate))
-			if err != nil {
-				sendSSHError(ctx, ws, fmt.Sprintf("Failed to parse certificate: %v", err))
-				return fmt.Errorf("parse certificate: %w", err)
-			}
-
-			cert, ok := certPubKey.(*ssh.Certificate)
-			if !ok {
-				sendSSHError(ctx, ws, "Provided certificate is not a valid SSH certificate")
-				return fmt.Errorf("provided certificate is not ssh certificate")
-			}
-
-			certSigner, err := ssh.NewCertSigner(cert, signer)
-			if err != nil {
-				sendSSHError(ctx, ws, fmt.Sprintf("Failed to combine private key and certificate: %v", err))
-				return fmt.Errorf("new cert signer: %w", err)
-			}
-			authMethods = append(authMethods, ssh.PublicKeys(certSigner))
-		} else {
-			authMethods = append(authMethods, ssh.PublicKeys(signer))
-		}
-	}
-	if password != "" {
-		authMethods = append(authMethods, ssh.Password(password))
-	}
-	if len(authMethods) == 0 {
-		sendSSHError(ctx, ws, "No authentication credentials provided")
-		return fmt.Errorf("no auth credentials")
-	}
-	logger.Debug("SSH: connecting to %s as %s", target, username)
-	sshCfg := &ssh.ClientConfig{
-		User: username,
-		Auth: authMethods,
-		// HostKeyCallback is intentionally InsecureIgnoreHostKey for this dev
-		// proxy. In production, verify against a known-hosts store.
-		HostKeyCallback: ssh.InsecureIgnoreHostKey(), //nolint:gosec
-		Timeout:         15 * time.Second,
-	}
-
-	sshClient, err := ssh.Dial("tcp", target, sshCfg)
-	if err != nil {
-		sendSSHError(ctx, ws, fmt.Sprintf("SSH dial failed: %v", err))
-		return fmt.Errorf("ssh dial %s: %w", target, err)
-	}
-	defer sshClient.Close()
-
-	// -- Open an interactive session --
-	sess, err := sshClient.NewSession()
-	if err != nil {
-		sendSSHError(ctx, ws, fmt.Sprintf("Failed to open SSH session: %v", err))
-		return fmt.Errorf("ssh new session: %w", err)
-	}
-	defer sess.Close()
-
-	// Request a PTY.
-	if err := sess.RequestPty("xterm-256color", 24, 80, ssh.TerminalModes{
-		ssh.ECHO:          1,
-		ssh.TTY_OP_ISPEED: 38400,
-		ssh.TTY_OP_OSPEED: 38400,
-	}); err != nil {
-		sendSSHError(ctx, ws, fmt.Sprintf("Failed to request PTY: %v", err))
-		return fmt.Errorf("ssh request pty: %w", err)
-	}
-
-	stdinPipe, err := sess.StdinPipe()
-	if err != nil {
-		return fmt.Errorf("ssh stdin pipe: %w", err)
-	}
-	stdoutPipe, err := sess.StdoutPipe()
-	if err != nil {
-		return fmt.Errorf("ssh stdout pipe: %w", err)
-	}
-	stderrPipe, err := sess.StderrPipe()
-	if err != nil {
-		return fmt.Errorf("ssh stderr pipe: %w", err)
-	}
-
-	if err := sess.Shell(); err != nil {
-		sendSSHError(ctx, ws, fmt.Sprintf("Failed to start shell: %v", err))
-		return fmt.Errorf("ssh shell: %w", err)
-	}
-
-	logger.Debug("SSH: session established with %s", target)
-
-	// -- Pump SSH stdout/stderr → WebSocket --
-	sessCtx, cancelSess := context.WithCancel(ctx)
-	defer cancelSess()
-
-	go func() {
-		buf := make([]byte, 4096)
-		for {
-			n, readErr := stdoutPipe.Read(buf)
-			if n > 0 {
-				msg := sshServerMsg{Type: "data", Data: string(buf[:n])}
-				b, _ := json.Marshal(msg)
-				if writeErr := ws.Write(sessCtx, websocket.MessageText, b); writeErr != nil {
-					return
-				}
-			}
-			if readErr != nil {
-				cancelSess()
-				return
-			}
-		}
-	}()
-
-	go func() {
-		buf := make([]byte, 4096)
-		for {
-			n, readErr := stderrPipe.Read(buf)
-			if n > 0 {
-				msg := sshServerMsg{Type: "data", Data: string(buf[:n])}
-				b, _ := json.Marshal(msg)
-				if writeErr := ws.Write(sessCtx, websocket.MessageText, b); writeErr != nil {
-					return
-				}
-			}
-			if readErr != nil {
-				return
-			}
-		}
-	}()
-
-	// -- Pump WebSocket input → SSH stdin / resize --
-	for {
-		_, msgBytes, readErr := ws.Read(sessCtx)
-		if readErr != nil {
-			break
-		}
-
-		var msg sshClientMsg
-		if err := json.Unmarshal(msgBytes, &msg); err != nil {
-			continue
-		}
-
-		switch msg.Type {
-		case "data":
-			if _, err := stdinPipe.Write([]byte(msg.Data)); err != nil {
-				return fmt.Errorf("write ssh stdin: %w", err)
-			}
-		case "resize":
-			if msg.Cols > 0 && msg.Rows > 0 {
-				_ = sess.WindowChange(int(msg.Rows), int(msg.Cols))
-			}
-		}
-	}
-
-	return nil
-}
-
-// sendSSHError sends an error message to the browser and logs it.
-func sendSSHError(ctx context.Context, ws *websocket.Conn, msg string) {
-	logger.Debug("SSH error: %s", msg)
-	b, _ := json.Marshal(sshServerMsg{Type: "error", Error: msg})
-	_ = ws.Write(ctx, websocket.MessageText, b)
-}

browsergateway/ssh_native.go

@@ -1,94 +0,0 @@
-//go:build !windows
-
-package browsergateway
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-
-	"github.com/coder/websocket"
-	"github.com/fosrl/newt/logger"
-	"github.com/fosrl/newt/nativessh"
-)
-
-// serveNativeSSHSession handles a WebSocket SSH session by authenticating the
-// user against the host OS (authorized_keys then PAM password) and then
-// spawning a PTY+shell running as that user.
-//
-// The auth frame from the browser must be a JSON sshClientMsg with type="auth"
-// carrying the same password/privateKey fields used by the proxy SSH path.
-// The target username is passed in from the HTTP layer (query param).
-func serveNativeSSHSession(ctx context.Context, ws *websocket.Conn, username string, creds *nativessh.CredentialStore) error {
-	// Read the auth frame.
-	_, authBytes, err := ws.Read(ctx)
-	if err != nil {
-		return fmt.Errorf("read auth message: %w", err)
-	}
-	var authMsg sshClientMsg
-	if err := json.Unmarshal(authBytes, &authMsg); err != nil || authMsg.Type != "auth" {
-		return fmt.Errorf("expected auth message, got: %s", authBytes)
-	}
-
-	// Authenticate using host authorized_keys or PAM password.
-	if err := nativessh.AuthenticateWithCertificate(creds, username, authMsg.Password, authMsg.PrivateKey, authMsg.Certificate); err != nil {
-		sendSSHError(ctx, ws, "Authentication failed")
-		return fmt.Errorf("auth for user %q: %w", username, err)
-	}
-
-	logger.Debug("SSH native: spawning shell as user %q", username)
-
-	sess, err := nativessh.NewPTYSessionAs(username)
-	if err != nil {
-		sendSSHError(ctx, ws, fmt.Sprintf("Failed to spawn shell: %v", err))
-		return fmt.Errorf("pty session as %q: %w", username, err)
-	}
-	defer sess.Close()
-
-	// Cancel context to unblock the WebSocket read loop when the shell exits.
-	sessCtx, cancelSess := context.WithCancel(ctx)
-	defer cancelSess()
-
-	// Pump PTY output → WebSocket.
-	go func() {
-		defer cancelSess()
-		buf := make([]byte, 4096)
-		for {
-			n, readErr := sess.Read(buf)
-			if n > 0 {
-				msg := sshServerMsg{Type: "data", Data: string(buf[:n])}
-				b, _ := json.Marshal(msg)
-				if writeErr := ws.Write(sessCtx, websocket.MessageText, b); writeErr != nil {
-					return
-				}
-			}
-			if readErr != nil {
-				return
-			}
-		}
-	}()
-
-	// Pump WebSocket input → PTY stdin / resize.
-	for {
-		_, msgBytes, readErr := ws.Read(sessCtx)
-		if readErr != nil {
-			break
-		}
-		var msg sshClientMsg
-		if err := json.Unmarshal(msgBytes, &msg); err != nil {
-			continue
-		}
-		switch msg.Type {
-		case "data":
-			if _, writeErr := sess.Write([]byte(msg.Data)); writeErr != nil {
-				return fmt.Errorf("write pty: %w", writeErr)
-			}
-		case "resize":
-			if msg.Cols > 0 && msg.Rows > 0 {
-				_ = sess.Resize(uint16(msg.Cols), uint16(msg.Rows))
-			}
-		}
-	}
-
-	return nil
-}

browsergateway/ssh_native_windows.go

@@ -1,16 +0,0 @@
-//go:build windows
-
-package browsergateway
-
-import (
-	"context"
-	"errors"
-
-	"github.com/coder/websocket"
-	"github.com/fosrl/newt/nativessh"
-)
-
-// serveNativeSSHSession is not supported on Windows.
-func serveNativeSSHSession(_ context.Context, _ *websocket.Conn, _ string, _ *nativessh.CredentialStore) error {
-	return errors.New("native SSH is not supported on Windows")
-}

browsergateway/vnc.go

@@ -1,125 +0,0 @@
-package browsergateway
-
-import (
-	"context"
-	"fmt"
-	"io"
-	"net"
-	"net/http"
-	"strconv"
-	"time"
-
-	"github.com/coder/websocket"
-	"github.com/fosrl/newt/logger"
-)
-
-const (
-	vncDialTimeout    = 10 * time.Second
-	vncKeepAlive      = 30 * time.Second
-	vncForwardBufSize = 32 * 1024
-)
-
-// handleVNC proxies a noVNC WebSocket connection to a raw TCP VNC backend.
-// It follows the same auth-token-in-query-param pattern as handleSSH.
-//
-// Query parameters:
-//
-//	authToken – shared secret matching the -auth-token flag
-//	host      – VNC backend hostname or IP
-//	port      – VNC backend port (default: 5900)
-func (g *Gateway) handleVNC(w http.ResponseWriter, r *http.Request) {
-	host := r.URL.Query().Get("host")
-	port := r.URL.Query().Get("port")
-	if host == "" {
-		http.Error(w, "missing host", http.StatusBadRequest)
-		return
-	}
-	if port == "" {
-		port = "5900"
-	}
-	vncPort, _ := strconv.Atoi(port)
-	authToken := r.URL.Query().Get("authToken")
-	if !g.isAllowed("vnc", host, vncPort, authToken) {
-		http.Error(w, "destination not allowed or auth token mismatch", http.StatusForbidden)
-		return
-	}
-	target := net.JoinHostPort(host, port)
-
-	// Optional HTTP probe used by the web UI to surface backend reachability
-	// failures before attempting a WebSocket session.
-	if r.URL.Query().Get("checkOnly") == "1" {
-		if err := dialVNCBackend(r.Context(), target); err != nil {
-			logger.Debug("vnc: preflight failed (%s): %v", target, err)
-			http.Error(w, fmt.Sprintf("failed to connect to VNC backend: %v", err), http.StatusBadGateway)
-			return
-		}
-		w.WriteHeader(http.StatusNoContent)
-		return
-	}
-
-	// Accept the WebSocket. noVNC negotiates the "binary" subprotocol;
-	// fall back gracefully when the client sends "base64" as well.
-	ws, err := websocket.Accept(w, r, &websocket.AcceptOptions{
-		InsecureSkipVerify: true,
-		Subprotocols:       []string{"binary", "base64"},
-	})
-	if err != nil {
-		logger.Debug("vnc: websocket upgrade failed: %v", err)
-		return
-	}
-	ws.SetReadLimit(-1)
-	defer ws.CloseNow() //nolint:errcheck
-
-	ctx := r.Context()
-	if err := serveVNC(ctx, ws, target); err != nil {
-		logger.Debug("vnc: session error (%s): %v", target, err)
-	}
-}
-
-func dialVNCBackend(ctx context.Context, target string) error {
-	dialer := &net.Dialer{
-		Timeout:   vncDialTimeout,
-		KeepAlive: vncKeepAlive,
-	}
-	conn, err := dialer.DialContext(ctx, "tcp", target)
-	if err != nil {
-		return err
-	}
-	defer conn.Close() //nolint:errcheck
-
-	return nil
-}
-
-func serveVNC(ctx context.Context, ws *websocket.Conn, target string) error {
-	// Dial the VNC backend TCP server.
-	dialer := &net.Dialer{
-		Timeout:   vncDialTimeout,
-		KeepAlive: vncKeepAlive,
-	}
-	conn, err := dialer.DialContext(ctx, "tcp", target)
-	if err != nil {
-		return err
-	}
-	defer conn.Close() //nolint:errcheck
-
-	// Expose the WebSocket as a plain net.Conn byte stream (binary frames).
-	stream := websocket.NetConn(ctx, ws, websocket.MessageBinary)
-	defer stream.Close() //nolint:errcheck
-
-	// Proxy bidirectionally: VNC backend <-> browser.
-	errc := make(chan error, 2)
-	go func() {
-		buf := make([]byte, vncForwardBufSize)
-		_, err := io.CopyBuffer(conn, stream, buf)
-		errc <- err
-	}()
-	go func() {
-		buf := make([]byte, vncForwardBufSize)
-		_, err := io.CopyBuffer(stream, conn, buf)
-		errc <- err
-	}()
-
-	// Return when either direction closes.
-	err = <-errc
-	return err
-}

clients.go

@@ -0,0 +1,104 @@
+package main
+
+import (
+	"strings"
+
+	"github.com/fosrl/newt/clients"
+	wgnetstack "github.com/fosrl/newt/clients"
+	"github.com/fosrl/newt/clients/permissions"
+	"github.com/fosrl/newt/logger"
+	"github.com/fosrl/newt/websocket"
+	"golang.zx2c4.com/wireguard/tun/netstack"
+)
+
+var wgService *clients.WireGuardService
+var ready bool
+
+func setupClients(client *websocket.Client) {
+	var host = endpoint
+	if strings.HasPrefix(host, "http://") {
+		host = strings.TrimPrefix(host, "http://")
+	} else if strings.HasPrefix(host, "https://") {
+		host = strings.TrimPrefix(host, "https://")
+	}
+
+	host = strings.TrimSuffix(host, "/")
+
+	logger.Debug("Setting up clients with netstack2...")
+
+	// if useNativeInterface is true make sure we have permission to use native interface
+	if useNativeInterface {
+		logger.Debug("Checking permissions for native interface")
+		err := permissions.CheckNativeInterfacePermissions()
+		if err != nil {
+			logger.Fatal("Insufficient permissions to create native TUN interface: %v", err)
+			return
+		}
+	}
+
+	// Create WireGuard service
+	wgService, err = wgnetstack.NewWireGuardService(interfaceName, port, mtuInt, host, id, client, dns, useNativeInterface)
+	if err != nil {
+		logger.Fatal("Failed to create WireGuard service: %v", err)
+	}
+
+	client.OnTokenUpdate(func(token string) {
+		wgService.SetToken(token)
+	})
+
+	ready = true
+}
+
+func setDownstreamTNetstack(tnet *netstack.Net) {
+	if wgService != nil {
+		wgService.SetOthertnet(tnet)
+	}
+}
+
+func closeClients() {
+	logger.Info("Closing clients...")
+	if wgService != nil {
+		wgService.Close()
+		wgService = nil
+	}
+}
+
+func clientsHandleNewtConnection(publicKey string, endpoint string, relayPort uint16) {
+	if !ready {
+		return
+	}
+
+	// split off the port from the endpoint
+	parts := strings.Split(endpoint, ":")
+	if len(parts) < 2 {
+		logger.Error("Invalid endpoint format: %s", endpoint)
+		return
+	}
+	endpoint = strings.Join(parts[:len(parts)-1], ":")
+
+	if wgService != nil {
+		wgService.StartHolepunch(publicKey, endpoint, relayPort)
+	}
+}
+
+func clientsOnConnect() {
+	if !ready {
+		return
+	}
+	if wgService != nil {
+		wgService.LoadRemoteConfig()
+	}
+}
+
+// clientsStartDirectRelay starts a direct UDP relay from the main tunnel netstack
+// to the clients' WireGuard, bypassing the proxy for better performance.
+func clientsStartDirectRelay(tunnelIP string) {
+	if !ready {
+		return
+	}
+	if wgService != nil {
+		if err := wgService.StartDirectUDPRelay(tunnelIP); err != nil {
+			logger.Error("Failed to start direct UDP relay: %v", err)
+		}
+	}
+}

clients/clients.go

@@ -2,8 +2,6 @@ package clients
 
 import (
 	"context"
-	"crypto/rand"
-	"encoding/hex"
 	"encoding/json"
 	"fmt"
 	"net"
@@ -13,14 +11,12 @@ import (
 	"strconv"
 	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 
 	"github.com/fosrl/newt/bind"
 	newtDevice "github.com/fosrl/newt/device"
 	"github.com/fosrl/newt/holepunch"
 	"github.com/fosrl/newt/logger"
-	"github.com/fosrl/newt/nativessh"
 	"github.com/fosrl/newt/netstack2"
 	"github.com/fosrl/newt/network"
 	"github.com/fosrl/newt/util"
@@ -38,21 +34,14 @@ type WgConfig struct {
 	IpAddress string   `json:"ipAddress"`
 	Peers     []Peer   `json:"peers"`
 	Targets   []Target `json:"targets"`
-	ChainId   string   `json:"chainId"`
 }
 
 type Target struct {
-	SourcePrefix   string                 `json:"sourcePrefix"`
-	SourcePrefixes []string               `json:"sourcePrefixes"`
-	DestPrefix     string                 `json:"destPrefix"`
-	RewriteTo      string                 `json:"rewriteTo,omitempty"`
-	DisableIcmp    bool                   `json:"disableIcmp,omitempty"`
-	PortRange      []PortRange            `json:"portRange,omitempty"`
-	ResourceId     int                    `json:"resourceId,omitempty"`
-	Protocol       string                 `json:"protocol,omitempty"`    // for now practicably either http or https
-	HTTPTargets    []netstack2.HTTPTarget `json:"httpTargets,omitempty"` // for http protocol, list of downstream services to load balance across
-	TLSCert        string                 `json:"tlsCert,omitempty"`     // PEM-encoded certificate for incoming HTTPS termination
-	TLSKey         string                 `json:"tlsKey,omitempty"`      // PEM-encoded private key for incoming HTTPS termination
+	SourcePrefix string      `json:"sourcePrefix"`
+	DestPrefix   string      `json:"destPrefix"`
+	RewriteTo    string      `json:"rewriteTo,omitempty"`
+	DisableIcmp  bool        `json:"disableIcmp,omitempty"`
+	PortRange    []PortRange `json:"portRange,omitempty"`
 }
 
 type PortRange struct {
@@ -80,20 +69,19 @@ type PeerReading struct {
 }
 
 type WireGuardService struct {
-	interfaceName        string
-	mtu                  int
-	client               *websocket.Client
-	config               WgConfig
-	key                  wgtypes.Key
-	newtId               string
-	lastReadings         map[string]PeerReading
-	mu                   sync.Mutex
-	Port                 uint16
-	host                 string
-	serverPubKey         string
-	token                string
-	stopGetConfig        func()
-	pendingConfigChainId string
+	interfaceName string
+	mtu           int
+	client        *websocket.Client
+	config        WgConfig
+	key           wgtypes.Key
+	newtId        string
+	lastReadings  map[string]PeerReading
+	mu            sync.Mutex
+	Port          uint16
+	host          string
+	serverPubKey  string
+	token         string
+	stopGetConfig func()
 	// Netstack fields
 	tun    tun.Device
 	tnet   *netstack2.Net
@@ -110,25 +98,12 @@ type WireGuardService struct {
 	sharedBind         *bind.SharedBind
 	holePunchManager   *holepunch.Manager
 	useNativeInterface bool
-	// SSH server running on the clients' netstack
-	sshServer *sshServerHandle
-	credStore *nativessh.CredentialStore
 	// Direct UDP relay from main tunnel to clients' WireGuard
 	directRelayStop    chan struct{}
 	directRelayWg      sync.WaitGroup
 	netstackListener   net.PacketConn
 	netstackListenerMu sync.Mutex
 	wgTesterServer     *wgtester.Server
-
-	// connection blocking: when true, all new incoming connections are dropped
-	blocked atomic.Bool
-}
-
-// generateChainId generates a random chain ID for deduplicating round-trip messages.
-func generateChainId() string {
-	b := make([]byte, 8)
-	_, _ = rand.Read(b)
-	return hex.EncodeToString(b)
 }
 
 func NewWireGuardService(interfaceName string, port uint16, mtu int, host string, newtId string, wsClient *websocket.Client, dns string, useNativeInterface bool) (*WireGuardService, error) {
@@ -185,8 +160,9 @@ func NewWireGuardService(interfaceName string, port uint16, mtu int, host string
 		useNativeInterface: useNativeInterface,
 	}
 
-	// Create the holepunch manager
-	service.holePunchManager = holepunch.NewManager(sharedBind, newtId, "newt", key.PublicKey().String(), nil)
+	// Create the holepunch manager with ResolveDomain function
+	// We'll need to pass a domain resolver function
+	service.holePunchManager = holepunch.NewManager(sharedBind, newtId, "newt", key.PublicKey().String())
 
 	// Register websocket handlers
 	wsClient.RegisterHandler("newt/wg/receive-config", service.handleConfig)
@@ -200,13 +176,6 @@ func NewWireGuardService(interfaceName string, port uint16, mtu int, host string
 	return service, nil
 }
 
-// SetCredentialStore sets the in-memory SSH credential store used by the
-// native SSH server. It must be called before the netstack is configured
-// (i.e. before the first newt/wg/receive-config message is processed).
-func (s *WireGuardService) SetCredentialStore(store *nativessh.CredentialStore) {
-	s.credStore = store
-}
-
 // ReportRTT allows reporting native RTTs to telemetry, rate-limited externally.
 func (s *WireGuardService) ReportRTT(seconds float64) {
 	if s.serverPubKey == "" {
@@ -225,21 +194,6 @@ func (s *WireGuardService) Close() {
 		s.stopGetConfig = nil
 	}
 
-	// Stop SSH server before tearing down the netstack
-	if s.sshServer != nil {
-		s.sshServer.stop()
-		s.sshServer = nil
-	}
-
-	// Flush access logs before tearing down the tunnel
-	if s.tnet != nil {
-		if ph := s.tnet.GetProxyHandler(); ph != nil {
-			if al := ph.GetAccessLogger(); al != nil {
-				al.Close()
-			}
-		}
-	}
-
 	// Stop the direct UDP relay first
 	s.StopDirectUDPRelay()
 
@@ -306,21 +260,6 @@ func (s *WireGuardService) GetPublicKey() wgtypes.Key {
 	return s.key.PublicKey()
 }
 
-// SetBlocked enables or disables connection blocking for this WireGuard service.
-// The state is persisted and applied immediately to any active proxy handler.
-func (s *WireGuardService) SetBlocked(v bool) {
-	s.blocked.Store(v)
-	s.mu.Lock()
-	tnet := s.tnet
-	s.mu.Unlock()
-	if tnet == nil {
-		return
-	}
-	if ph := tnet.GetProxyHandler(); ph != nil {
-		ph.SetBlocked(v)
-	}
-}
-
 // SetOnNetstackReady sets a callback function to be called when the netstack interface is ready
 func (s *WireGuardService) SetOnNetstackReady(callback func(*netstack2.Net)) {
 	s.onNetstackReady = callback
@@ -338,7 +277,7 @@ func (s *WireGuardService) StartHolepunch(publicKey string, endpoint string, rel
 	}
 
 	if relayPort == 0 {
-		relayPort = 21820
+	    relayPort = 21820
 	}
 
 	// Convert websocket.ExitNode to holepunch.ExitNode
@@ -501,12 +440,9 @@ func (s *WireGuardService) LoadRemoteConfig() error {
 		s.stopGetConfig()
 		s.stopGetConfig = nil
 	}
-	chainId := generateChainId()
-	s.pendingConfigChainId = chainId
 	s.stopGetConfig = s.client.SendMessageInterval("newt/wg/get-config", map[string]interface{}{
 		"publicKey": s.key.PublicKey().String(),
 		"port":      s.Port,
-		"chainId":   chainId,
 	}, 2*time.Second)
 
 	logger.Debug("Requesting WireGuard configuration from remote server")
@@ -531,17 +467,6 @@ func (s *WireGuardService) handleConfig(msg websocket.WSMessage) {
 		logger.Info("Error unmarshaling target data: %v", err)
 		return
 	}
-
-	// Deduplicate using chainId: discard responses that don't match the
-	// pending request, or that we have already processed.
-	if config.ChainId != "" {
-		if config.ChainId != s.pendingConfigChainId {
-			logger.Debug("Discarding duplicate/stale newt/wg/get-config response (chainId=%s, expected=%s)", config.ChainId, s.pendingConfigChainId)
-			return
-		}
-		s.pendingConfigChainId = "" // consume – further duplicates are rejected
-	}
-
 	s.config = config
 
 	if s.stopGetConfig != nil {
@@ -567,139 +492,6 @@ func (s *WireGuardService) handleConfig(msg websocket.WSMessage) {
 	logger.Info("Client connectivity setup. Ready to accept connections from clients!")
 }
 
-// Sync synchronizes the clients WireGuard peers and targets with the desired state
-// received as part of the main newt/sync message.
-func (s *WireGuardService) Sync(peers []Peer, targets []Target) {
-	if err := s.syncPeers(peers); err != nil {
-		logger.Error("Failed to sync client peers: %v", err)
-	}
-
-	if err := s.syncTargets(targets); err != nil {
-		logger.Error("Failed to sync client targets: %v", err)
-	}
-}
-
-// syncPeers synchronizes the current peers with the desired state
-// It removes peers not in the desired list and adds missing ones
-func (s *WireGuardService) syncPeers(desiredPeers []Peer) error {
-	if s.device == nil {
-		return fmt.Errorf("WireGuard device is not initialized")
-	}
-
-	// Get current peers from the device
-	currentConfig, err := s.device.IpcGet()
-	if err != nil {
-		return fmt.Errorf("failed to get current device config: %v", err)
-	}
-
-	// Parse current peer public keys
-	lines := strings.Split(currentConfig, "\n")
-	currentPeerKeys := make(map[string]bool)
-	for _, line := range lines {
-		if strings.HasPrefix(line, "public_key=") {
-			pubKey := strings.TrimPrefix(line, "public_key=")
-			currentPeerKeys[pubKey] = true
-		}
-	}
-
-	// Build a map of desired peers by their public key (normalized)
-	desiredPeerMap := make(map[string]Peer)
-	for _, peer := range desiredPeers {
-		// Normalize the public key for comparison
-		pubKey, err := wgtypes.ParseKey(peer.PublicKey)
-		if err != nil {
-			logger.Warn("Invalid public key in desired peers: %s", peer.PublicKey)
-			continue
-		}
-		normalizedKey := util.FixKey(pubKey.String())
-		desiredPeerMap[normalizedKey] = peer
-	}
-
-	// Remove peers that are not in the desired list
-	for currentKey := range currentPeerKeys {
-		if _, exists := desiredPeerMap[currentKey]; !exists {
-			// Parse the key back to get the original format for removal
-			removeConfig := fmt.Sprintf("public_key=%s\nremove=true", currentKey)
-			if err := s.device.IpcSet(removeConfig); err != nil {
-				logger.Warn("Failed to remove peer %s during sync: %v", currentKey, err)
-			} else {
-				logger.Info("Removed peer %s during sync", currentKey)
-			}
-		}
-	}
-
-	// Add peers that are missing
-	for normalizedKey, peer := range desiredPeerMap {
-		if _, exists := currentPeerKeys[normalizedKey]; !exists {
-			if err := s.addPeerToDevice(peer); err != nil {
-				logger.Warn("Failed to add peer %s during sync: %v", peer.PublicKey, err)
-			} else {
-				logger.Info("Added peer %s during sync", peer.PublicKey)
-			}
-		}
-	}
-
-	return nil
-}
-
-// syncTargets synchronizes the current targets with the desired state.
-// A sync represents the full authoritative state from the server, so rather
-// than diffing against the currently installed rules (which can miss
-// changes to a rule's contents when its source/dest prefix key is
-// unchanged - e.g. a RewriteTo update), we just rebuild the entire rule set
-// from scratch on every sync. This guarantees no stale rule can survive.
-func (s *WireGuardService) syncTargets(desiredTargets []Target) error {
-	if s.tnet == nil {
-		// Native interface mode - proxy features not available, skip silently
-		logger.Debug("Skipping target sync - using native interface (no proxy support)")
-		return nil
-	}
-
-	var rules []netstack2.SubnetRule
-	for _, target := range desiredTargets {
-		destPrefix, err := netip.ParsePrefix(target.DestPrefix)
-		if err != nil {
-			logger.Warn("Invalid dest prefix %s during sync: %v", target.DestPrefix, err)
-			continue
-		}
-
-		var portRanges []netstack2.PortRange
-		for _, pr := range target.PortRange {
-			portRanges = append(portRanges, netstack2.PortRange{
-				Min:      pr.Min,
-				Max:      pr.Max,
-				Protocol: pr.Protocol,
-			})
-		}
-
-		for _, sp := range resolveSourcePrefixes(target) {
-			sourcePrefix, err := netip.ParsePrefix(sp)
-			if err != nil {
-				logger.Warn("Invalid source prefix %s during sync: %v", sp, err)
-				continue
-			}
-
-			rules = append(rules, netstack2.SubnetRule{
-				SourcePrefix: sourcePrefix,
-				DestPrefix:   destPrefix,
-				RewriteTo:    target.RewriteTo,
-				PortRanges:   portRanges,
-				DisableIcmp:  target.DisableIcmp,
-				ResourceId:   target.ResourceId,
-				Protocol:     target.Protocol,
-				HTTPTargets:  target.HTTPTargets,
-				TLSCert:      target.TLSCert,
-				TLSKey:       target.TLSKey,
-			})
-		}
-	}
-
-	s.tnet.ReplaceProxySubnetRules(rules)
-	logger.Info("Synced targets: %d rules installed", len(rules))
-
-	return nil
-}
-
 func (s *WireGuardService) ensureWireguardInterface(wgconfig WgConfig) error {
 	s.mu.Lock()
 
@@ -823,20 +615,6 @@ func (s *WireGuardService) ensureWireguardInterface(wgconfig WgConfig) error {
 
 	s.TunnelIP = tunnelIP.String()
 
-	// Configure the access log sender to ship compressed session logs via websocket
-	s.tnet.SetAccessLogSender(func(data string) error {
-		return s.client.SendMessageNoLog("newt/access-log", map[string]interface{}{
-			"compressed": data,
-		})
-	})
-
-	// Configure the HTTP request log sender to ship compressed request logs via websocket
-	s.tnet.SetHTTPRequestLogSender(func(data string) error {
-		return s.client.SendMessageNoLog("newt/request-log", map[string]interface{}{
-			"compressed": data,
-		})
-	})
-
 	// Create WireGuard device using the shared bind
 	s.device = device.NewDevice(s.tun, s.sharedBind, device.NewLogger(
 		device.LogLevelSilent, // Use silent logging by default - could be made configurable
@@ -870,25 +648,7 @@ func (s *WireGuardService) ensureWireguardInterface(wgconfig WgConfig) error {
 		logger.Error("Failed to start WireGuard tester server: %v", err)
 	}
 
-	// Start the SSH server on the clients' netstack (port 22).
-	// A nil credStore means SSH is disabled (--disable-ssh), so skip starting the server.
-	if s.credStore != nil {
-		if h, sshErr := startSSHOnNetstack(s.tnet, s.credStore); sshErr != nil {
-			logger.Warn("nativessh: not starting SSH server on clients netstack: %v", sshErr)
-		} else {
-			s.sshServer = h
-		}
-	}
-
 	// Note: we already unlocked above, so don't use defer unlock
-
-	// Apply any pending blocked state to the newly created proxy handler
-	if s.blocked.Load() {
-		if ph := s.tnet.GetProxyHandler(); ph != nil {
-			ph.SetBlocked(true)
-		}
-	}
-
 	return nil
 }
 
@@ -935,19 +695,6 @@ func (s *WireGuardService) ensureWireguardPeers(peers []Peer) error {
 	return nil
 }
 
-// resolveSourcePrefixes returns the effective list of source prefixes for a target,
-// supporting both the legacy single SourcePrefix field and the new SourcePrefixes array.
-// If SourcePrefixes is non-empty it takes precedence; otherwise SourcePrefix is used.
-func resolveSourcePrefixes(target Target) []string {
-	if len(target.SourcePrefixes) > 0 {
-		return target.SourcePrefixes
-	}
-	if target.SourcePrefix != "" {
-		return []string{target.SourcePrefix}
-	}
-	return nil
-}
-
 func (s *WireGuardService) ensureTargets(targets []Target) error {
 	if s.tnet == nil {
 		// Native interface mode - proxy features not available, skip silently
@@ -956,6 +703,11 @@ func (s *WireGuardService) ensureTargets(targets []Target) error {
 	}
 
 	for _, target := range targets {
+		sourcePrefix, err := netip.ParsePrefix(target.SourcePrefix)
+		if err != nil {
+			return fmt.Errorf("invalid CIDR %s: %v", target.SourcePrefix, err)
+		}
+
 		destPrefix, err := netip.ParsePrefix(target.DestPrefix)
 		if err != nil {
 			return fmt.Errorf("invalid CIDR %s: %v", target.DestPrefix, err)
@@ -970,25 +722,9 @@ func (s *WireGuardService) ensureTargets(targets []Target) error {
 			})
 		}
 
-		for _, sp := range resolveSourcePrefixes(target) {
-			sourcePrefix, err := netip.ParsePrefix(sp)
-			if err != nil {
-				return fmt.Errorf("invalid CIDR %s: %v", sp, err)
-			}
-			s.tnet.AddProxySubnetRule(netstack2.SubnetRule{
-				SourcePrefix: sourcePrefix,
-				DestPrefix:   destPrefix,
-				RewriteTo:    target.RewriteTo,
-				PortRanges:   portRanges,
-				DisableIcmp:  target.DisableIcmp,
-				ResourceId:   target.ResourceId,
-				Protocol:     target.Protocol,
-				HTTPTargets:  target.HTTPTargets,
-				TLSCert:      target.TLSCert,
-				TLSKey:       target.TLSKey,
-			})
-			logger.Info("Added target subnet from %s to %s rewrite to %s with port ranges: %v", sp, target.DestPrefix, target.RewriteTo, target.PortRange)
-		}
+		s.tnet.AddProxySubnetRule(sourcePrefix, destPrefix, target.RewriteTo, portRanges, target.DisableIcmp)
+
+		logger.Info("Added target subnet from %s to %s rewrite to %s with port ranges: %v", target.SourcePrefix, target.DestPrefix, target.RewriteTo, target.PortRange)
 	}
 
 	return nil
@@ -1307,7 +1043,7 @@ func (s *WireGuardService) processPeerBandwidth(publicKey string, rxBytes, txByt
 					BytesOut:  bytesOutMB,
 				}
 			}
-
+			
 			return nil
 		}
 	}
@@ -1358,6 +1094,12 @@ func (s *WireGuardService) handleAddTarget(msg websocket.WSMessage) {
 
 	// Process all targets
 	for _, target := range targets {
+		sourcePrefix, err := netip.ParsePrefix(target.SourcePrefix)
+		if err != nil {
+			logger.Info("Invalid CIDR %s: %v", target.SourcePrefix, err)
+			continue
+		}
+
 		destPrefix, err := netip.ParsePrefix(target.DestPrefix)
 		if err != nil {
 			logger.Info("Invalid CIDR %s: %v", target.DestPrefix, err)
@@ -1367,32 +1109,15 @@ func (s *WireGuardService) handleAddTarget(msg websocket.WSMessage) {
 		var portRanges []netstack2.PortRange
 		for _, pr := range target.PortRange {
 			portRanges = append(portRanges, netstack2.PortRange{
-				Min:      pr.Min,
-				Max:      pr.Max,
-				Protocol: pr.Protocol,
+				Min: pr.Min,
+				Max: pr.Max,
+				Protocol:    pr.Protocol,
 			})
 		}
 
-		for _, sp := range resolveSourcePrefixes(target) {
-			sourcePrefix, err := netip.ParsePrefix(sp)
-			if err != nil {
-				logger.Info("Invalid CIDR %s: %v", sp, err)
-				continue
-			}
-			s.tnet.AddProxySubnetRule(netstack2.SubnetRule{
-				SourcePrefix: sourcePrefix,
-				DestPrefix:   destPrefix,
-				RewriteTo:    target.RewriteTo,
-				PortRanges:   portRanges,
-				DisableIcmp:  target.DisableIcmp,
-				ResourceId:   target.ResourceId,
-				Protocol:     target.Protocol,
-				HTTPTargets:  target.HTTPTargets,
-				TLSCert:      target.TLSCert,
-				TLSKey:       target.TLSKey,
-			})
-			logger.Info("Added target subnet from %s to %s rewrite to %s with port ranges: %v", sp, target.DestPrefix, target.RewriteTo, target.PortRange)
-		}
+		s.tnet.AddProxySubnetRule(sourcePrefix, destPrefix, target.RewriteTo, portRanges, target.DisableIcmp)
+
+		logger.Info("Added target subnet from %s to %s rewrite to %s with port ranges: %v", target.SourcePrefix, target.DestPrefix, target.RewriteTo, target.PortRange)
 	}
 }
 
@@ -1421,21 +1146,21 @@ func (s *WireGuardService) handleRemoveTarget(msg websocket.WSMessage) {
 
 	// Process all targets
 	for _, target := range targets {
+		sourcePrefix, err := netip.ParsePrefix(target.SourcePrefix)
+		if err != nil {
+			logger.Info("Invalid CIDR %s: %v", target.SourcePrefix, err)
+			continue
+		}
+
 		destPrefix, err := netip.ParsePrefix(target.DestPrefix)
 		if err != nil {
 			logger.Info("Invalid CIDR %s: %v", target.DestPrefix, err)
 			continue
 		}
 
-		for _, sp := range resolveSourcePrefixes(target) {
-			sourcePrefix, err := netip.ParsePrefix(sp)
-			if err != nil {
-				logger.Info("Invalid CIDR %s: %v", sp, err)
-				continue
-			}
-			s.tnet.RemoveProxySubnetRule(sourcePrefix, destPrefix)
-			logger.Info("Removed target subnet %s with destination %s", sp, target.DestPrefix)
-		}
+		s.tnet.RemoveProxySubnetRule(sourcePrefix, destPrefix)
+
+		logger.Info("Removed target subnet %s with destination %s", target.SourcePrefix, target.DestPrefix)
 	}
 }
 
@@ -1469,24 +1194,30 @@ func (s *WireGuardService) handleUpdateTarget(msg websocket.WSMessage) {
 
 	// Process all update requests
 	for _, target := range requests.OldTargets {
+		sourcePrefix, err := netip.ParsePrefix(target.SourcePrefix)
+		if err != nil {
+			logger.Info("Invalid CIDR %s: %v", target.SourcePrefix, err)
+			continue
+		}
+
 		destPrefix, err := netip.ParsePrefix(target.DestPrefix)
 		if err != nil {
 			logger.Info("Invalid CIDR %s: %v", target.DestPrefix, err)
 			continue
 		}
 
-		for _, sp := range resolveSourcePrefixes(target) {
-			sourcePrefix, err := netip.ParsePrefix(sp)
-			if err != nil {
-				logger.Info("Invalid CIDR %s: %v", sp, err)
-				continue
-			}
-			s.tnet.RemoveProxySubnetRule(sourcePrefix, destPrefix)
-			logger.Info("Removed target subnet %s with destination %s", sp, target.DestPrefix)
-		}
+		s.tnet.RemoveProxySubnetRule(sourcePrefix, destPrefix)
+		logger.Info("Removed target subnet %s with destination %s", target.SourcePrefix, target.DestPrefix)
 	}
 
 	for _, target := range requests.NewTargets {
+		// Now add the new target
+		sourcePrefix, err := netip.ParsePrefix(target.SourcePrefix)
+		if err != nil {
+			logger.Info("Invalid CIDR %s: %v", target.SourcePrefix, err)
+			continue
+		}
+
 		destPrefix, err := netip.ParsePrefix(target.DestPrefix)
 		if err != nil {
 			logger.Info("Invalid CIDR %s: %v", target.DestPrefix, err)
@@ -1496,32 +1227,14 @@ func (s *WireGuardService) handleUpdateTarget(msg websocket.WSMessage) {
 		var portRanges []netstack2.PortRange
 		for _, pr := range target.PortRange {
 			portRanges = append(portRanges, netstack2.PortRange{
-				Min:      pr.Min,
-				Max:      pr.Max,
-				Protocol: pr.Protocol,
+				Min:         pr.Min,
+				Max:         pr.Max,
+				Protocol:    pr.Protocol,
 			})
 		}
 
-		for _, sp := range resolveSourcePrefixes(target) {
-			sourcePrefix, err := netip.ParsePrefix(sp)
-			if err != nil {
-				logger.Info("Invalid CIDR %s: %v", sp, err)
-				continue
-			}
-			s.tnet.AddProxySubnetRule(netstack2.SubnetRule{
-				SourcePrefix: sourcePrefix,
-				DestPrefix:   destPrefix,
-				RewriteTo:    target.RewriteTo,
-				PortRanges:   portRanges,
-				DisableIcmp:  target.DisableIcmp,
-				ResourceId:   target.ResourceId,
-				Protocol:     target.Protocol,
-				HTTPTargets:  target.HTTPTargets,
-				TLSCert:      target.TLSCert,
-				TLSKey:       target.TLSKey,
-			})
-			logger.Info("Added target subnet from %s to %s rewrite to %s with port ranges: %v", sp, target.DestPrefix, target.RewriteTo, target.PortRange)
-		}
+		s.tnet.AddProxySubnetRule(sourcePrefix, destPrefix, target.RewriteTo, portRanges, target.DisableIcmp)
+		logger.Info("Added target subnet from %s to %s rewrite to %s with port ranges: %v", target.SourcePrefix, target.DestPrefix, target.RewriteTo, target.PortRange)
 	}
 }
 
@@ -1561,33 +1274,3 @@ func (s *WireGuardService) filterReadOnlyFields(config string) string {
 
 	return strings.Join(filteredLines, "\n")
 }
-
-// sshServerHandle holds the listener so the SSH server can be stopped by
-// closing it.
-type sshServerHandle struct {
-	ln net.Listener
-}
-
-func (h *sshServerHandle) stop() {
-	_ = h.ln.Close()
-}
-
-// startSSHOnNetstack creates a TCP listener on port 22 of the clients' netstack
-// and starts serving SSH connections on it in the background. The returned
-// handle can be used to stop the server by closing the listener.
-func startSSHOnNetstack(tnet *netstack2.Net, creds *nativessh.CredentialStore) (*sshServerHandle, error) {
-	srv := nativessh.NewServer(nativessh.ServerConfig{
-		Credentials: creds,
-	})
-	ln, err := tnet.ListenTCP(&net.TCPAddr{Port: 22})
-	if err != nil {
-		return nil, fmt.Errorf("listen on netstack port 22: %w", err)
-	}
-	h := &sshServerHandle{ln: ln}
-	go func() {
-		if err := srv.Serve(ln); err != nil {
-			logger.Debug("nativessh: clients netstack server stopped: %v", err)
-		}
-	}()
-	return h, nil
-}

common.go

@@ -0,0 +1,520 @@
+package main
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"os"
+	"os/exec"
+	"strings"
+	"time"
+
+	"math/rand"
+
+	"github.com/fosrl/newt/internal/telemetry"
+	"github.com/fosrl/newt/logger"
+	"github.com/fosrl/newt/proxy"
+	"github.com/fosrl/newt/websocket"
+	"golang.org/x/net/icmp"
+	"golang.org/x/net/ipv4"
+	"golang.zx2c4.com/wireguard/tun/netstack"
+	"gopkg.in/yaml.v3"
+)
+
+const msgHealthFileWriteFailed = "Failed to write health file: %v"
+
+func ping(tnet *netstack.Net, dst string, timeout time.Duration) (time.Duration, error) {
+	// logger.Debug("Pinging %s", dst)
+	socket, err := tnet.Dial("ping4", dst)
+	if err != nil {
+		return 0, fmt.Errorf("failed to create ICMP socket: %w", err)
+	}
+	defer socket.Close()
+
+	// Set socket buffer sizes to handle high bandwidth scenarios
+	if tcpConn, ok := socket.(interface{ SetReadBuffer(int) error }); ok {
+		tcpConn.SetReadBuffer(64 * 1024)
+	}
+	if tcpConn, ok := socket.(interface{ SetWriteBuffer(int) error }); ok {
+		tcpConn.SetWriteBuffer(64 * 1024)
+	}
+
+	requestPing := icmp.Echo{
+		Seq:  rand.Intn(1 << 16),
+		Data: []byte("newtping"),
+	}
+
+	icmpBytes, err := (&icmp.Message{Type: ipv4.ICMPTypeEcho, Code: 0, Body: &requestPing}).Marshal(nil)
+	if err != nil {
+		return 0, fmt.Errorf("failed to marshal ICMP message: %w", err)
+	}
+
+	if err := socket.SetReadDeadline(time.Now().Add(timeout)); err != nil {
+		return 0, fmt.Errorf("failed to set read deadline: %w", err)
+	}
+
+	start := time.Now()
+	_, err = socket.Write(icmpBytes)
+	if err != nil {
+		return 0, fmt.Errorf("failed to write ICMP packet: %w", err)
+	}
+
+	// Use larger buffer for reading to handle potential network congestion
+	readBuffer := make([]byte, 1500)
+	n, err := socket.Read(readBuffer)
+	if err != nil {
+		return 0, fmt.Errorf("failed to read ICMP packet: %w", err)
+	}
+
+	replyPacket, err := icmp.ParseMessage(1, readBuffer[:n])
+	if err != nil {
+		return 0, fmt.Errorf("failed to parse ICMP packet: %w", err)
+	}
+
+	replyPing, ok := replyPacket.Body.(*icmp.Echo)
+	if !ok {
+		return 0, fmt.Errorf("invalid reply type: got %T, want *icmp.Echo", replyPacket.Body)
+	}
+
+	if !bytes.Equal(replyPing.Data, requestPing.Data) || replyPing.Seq != requestPing.Seq {
+		return 0, fmt.Errorf("invalid ping reply: got seq=%d data=%q, want seq=%d data=%q",
+			replyPing.Seq, replyPing.Data, requestPing.Seq, requestPing.Data)
+	}
+
+	latency := time.Since(start)
+
+	// logger.Debug("Ping to %s successful, latency: %v", dst, latency)
+
+	return latency, nil
+}
+
+// reliablePing performs multiple ping attempts with adaptive timeout
+func reliablePing(tnet *netstack.Net, dst string, baseTimeout time.Duration, maxAttempts int) (time.Duration, error) {
+	var lastErr error
+	var totalLatency time.Duration
+	successCount := 0
+
+	for attempt := 1; attempt <= maxAttempts; attempt++ {
+		// Adaptive timeout: increase timeout for later attempts
+		timeout := baseTimeout + time.Duration(attempt-1)*500*time.Millisecond
+
+		// Add jitter to prevent thundering herd
+		jitter := time.Duration(rand.Intn(100)) * time.Millisecond
+		timeout += jitter
+
+		latency, err := ping(tnet, dst, timeout)
+		if err != nil {
+			lastErr = err
+			logger.Debug("Ping attempt %d/%d failed: %v", attempt, maxAttempts, err)
+
+			// Brief pause between attempts with exponential backoff
+			if attempt < maxAttempts {
+				backoff := time.Duration(attempt) * 50 * time.Millisecond
+				time.Sleep(backoff)
+			}
+			continue
+		}
+
+		totalLatency += latency
+		successCount++
+
+		// If we get at least one success, we can return early for health checks
+		if successCount > 0 {
+			avgLatency := totalLatency / time.Duration(successCount)
+			// logger.Debug("Reliable ping succeeded after %d attempts, avg latency: %v", attempt, avgLatency)
+			return avgLatency, nil
+		}
+	}
+
+	if successCount == 0 {
+		return 0, fmt.Errorf("all %d ping attempts failed, last error: %v", maxAttempts, lastErr)
+	}
+
+	return totalLatency / time.Duration(successCount), nil
+}
+
+func pingWithRetry(tnet *netstack.Net, dst string, timeout time.Duration) (stopChan chan struct{}, err error) {
+
+	if healthFile != "" {
+		err = os.Remove(healthFile)
+		if err != nil {
+			logger.Error("Failed to remove health file: %v", err)
+		}
+	}
+
+	const (
+		initialMaxAttempts = 5
+		initialRetryDelay  = 2 * time.Second
+		maxRetryDelay      = 60 * time.Second // Cap the maximum delay
+	)
+
+	stopChan = make(chan struct{})
+	attempt := 1
+	retryDelay := initialRetryDelay
+
+	// First try with the initial parameters
+	logger.Debug("Ping attempt %d", attempt)
+	if latency, err := ping(tnet, dst, timeout); err == nil {
+		// Successful ping
+		logger.Debug("Ping latency: %v", latency)
+		logger.Info("Tunnel connection to server established successfully!")
+		if healthFile != "" {
+			err := os.WriteFile(healthFile, []byte("ok"), 0644)
+			if err != nil {
+				logger.Warn(msgHealthFileWriteFailed, err)
+			}
+		}
+		return stopChan, nil
+	} else {
+		logger.Warn("Ping attempt %d failed: %v", attempt, err)
+	}
+
+	// Start a goroutine that will attempt pings indefinitely with increasing delays
+	go func() {
+		attempt = 2 // Continue from attempt 2
+
+		for {
+			select {
+			case <-stopChan:
+				return
+			default:
+				logger.Debug("Ping attempt %d", attempt)
+
+				if latency, err := ping(tnet, dst, timeout); err != nil {
+					logger.Warn("Ping attempt %d failed: %v", attempt, err)
+
+					// Increase delay after certain thresholds but cap it
+					if attempt%5 == 0 && retryDelay < maxRetryDelay {
+						retryDelay = time.Duration(float64(retryDelay) * 1.5)
+						if retryDelay > maxRetryDelay {
+							retryDelay = maxRetryDelay
+						}
+						logger.Info("Increasing ping retry delay to %v", retryDelay)
+					}
+
+					time.Sleep(retryDelay)
+					attempt++
+				} else {
+					// Successful ping
+					logger.Debug("Ping succeeded after %d attempts", attempt)
+					logger.Debug("Ping latency: %v", latency)
+					logger.Info("Tunnel connection to server established successfully!")
+					if healthFile != "" {
+						err := os.WriteFile(healthFile, []byte("ok"), 0644)
+						if err != nil {
+							logger.Warn(msgHealthFileWriteFailed, err)
+						}
+					}
+				}
+			case <-pingStopChan:
+				// Stop the goroutine when signaled
+				return
+			}
+		}
+	}()
+
+	// Return an error for the first batch of attempts (to maintain compatibility with existing code)
+	return stopChan, fmt.Errorf("initial ping attempts failed, continuing in background")
+}
+
+func startPingCheck(tnet *netstack.Net, serverIP string, client *websocket.Client, tunnelID string) chan struct{} {
+	maxInterval := 6 * time.Second
+	currentInterval := pingInterval
+	consecutiveFailures := 0
+	connectionLost := false
+
+	// Track recent latencies for adaptive timeout calculation
+	recentLatencies := make([]time.Duration, 0, 10)
+
+	pingStopChan := make(chan struct{})
+
+	go func() {
+		ticker := time.NewTicker(currentInterval)
+		defer ticker.Stop()
+		for {
+			select {
+			case <-ticker.C:
+				// Calculate adaptive timeout based on recent latencies
+				adaptiveTimeout := pingTimeout
+				if len(recentLatencies) > 0 {
+					var sum time.Duration
+					for _, lat := range recentLatencies {
+						sum += lat
+					}
+					avgLatency := sum / time.Duration(len(recentLatencies))
+					// Use 3x average latency as timeout, with minimum of pingTimeout
+					adaptiveTimeout = avgLatency * 3
+					if adaptiveTimeout < pingTimeout {
+						adaptiveTimeout = pingTimeout
+					}
+					if adaptiveTimeout > 15*time.Second {
+						adaptiveTimeout = 15 * time.Second
+					}
+				}
+
+				// Use reliable ping with multiple attempts
+				maxAttempts := 2
+				if consecutiveFailures > 4 {
+					maxAttempts = 4 // More attempts when connection is unstable
+				}
+
+				latency, err := reliablePing(tnet, serverIP, adaptiveTimeout, maxAttempts)
+				if err != nil {
+					consecutiveFailures++
+
+					// Track recent latencies (add a high value for failures)
+					recentLatencies = append(recentLatencies, adaptiveTimeout)
+					if len(recentLatencies) > 10 {
+						recentLatencies = recentLatencies[1:]
+					}
+
+					if consecutiveFailures < 2 {
+						logger.Debug("Periodic ping failed (%d consecutive failures): %v", consecutiveFailures, err)
+					} else {
+						logger.Warn("Periodic ping failed (%d consecutive failures): %v", consecutiveFailures, err)
+					}
+
+					// More lenient threshold for declaring connection lost under load
+					failureThreshold := 4
+					if consecutiveFailures >= failureThreshold && currentInterval < maxInterval {
+						if !connectionLost {
+							connectionLost = true
+							logger.Warn("Connection to server lost after %d failures. Continuous reconnection attempts will be made.", consecutiveFailures)
+							if tunnelID != "" {
+								telemetry.IncReconnect(context.Background(), tunnelID, "client", telemetry.ReasonTimeout)
+							}
+							stopFunc = client.SendMessageInterval("newt/ping/request", map[string]interface{}{}, 3*time.Second)
+							// Send registration message to the server for backward compatibility
+							err := client.SendMessage("newt/wg/register", map[string]interface{}{
+								"publicKey":           publicKey.String(),
+								"backwardsCompatible": true,
+							})
+							if err != nil {
+								logger.Error("Failed to send registration message: %v", err)
+							}
+							if healthFile != "" {
+								err = os.Remove(healthFile)
+								if err != nil {
+									logger.Error("Failed to remove health file: %v", err)
+								}
+							}
+						}
+						currentInterval = time.Duration(float64(currentInterval) * 1.3) // Slower increase
+						if currentInterval > maxInterval {
+							currentInterval = maxInterval
+						}
+						ticker.Reset(currentInterval)
+						logger.Debug("Increased ping check interval to %v due to consecutive failures", currentInterval)
+					}
+				} else {
+					// Track recent latencies
+					recentLatencies = append(recentLatencies, latency)
+					// Record tunnel latency (limit sampling to this periodic check)
+					if tunnelID != "" {
+						telemetry.ObserveTunnelLatency(context.Background(), tunnelID, "wireguard", latency.Seconds())
+					}
+					if len(recentLatencies) > 10 {
+						recentLatencies = recentLatencies[1:]
+					}
+
+					if connectionLost {
+						connectionLost = false
+						logger.Info("Connection to server restored after %d failures!", consecutiveFailures)
+						if healthFile != "" {
+							err := os.WriteFile(healthFile, []byte("ok"), 0644)
+							if err != nil {
+								logger.Warn("Failed to write health file: %v", err)
+							}
+						}
+					}
+					if currentInterval > pingInterval {
+						currentInterval = time.Duration(float64(currentInterval) * 0.9) // Slower decrease
+						if currentInterval < pingInterval {
+							currentInterval = pingInterval
+						}
+						ticker.Reset(currentInterval)
+						logger.Debug("Decreased ping check interval to %v after successful ping", currentInterval)
+					}
+					consecutiveFailures = 0
+				}
+			case <-pingStopChan:
+				logger.Info("Stopping ping check")
+				return
+			}
+		}
+	}()
+
+	return pingStopChan
+}
+
+func parseTargetData(data interface{}) (TargetData, error) {
+	var targetData TargetData
+	jsonData, err := json.Marshal(data)
+	if err != nil {
+		logger.Info("Error marshaling data: %v", err)
+		return targetData, err
+	}
+
+	if err := json.Unmarshal(jsonData, &targetData); err != nil {
+		logger.Info("Error unmarshaling target data: %v", err)
+		return targetData, err
+	}
+	return targetData, nil
+}
+
+func updateTargets(pm *proxy.ProxyManager, action string, tunnelIP string, proto string, targetData TargetData) error {
+	for _, t := range targetData.Targets {
+		// Split the first number off of the target with : separator and use as the port
+		parts := strings.Split(t, ":")
+		if len(parts) != 3 {
+			logger.Info("Invalid target format: %s", t)
+			continue
+		}
+
+		// Get the port as an int
+		port := 0
+		_, err := fmt.Sscanf(parts[0], "%d", &port)
+		if err != nil {
+			logger.Info("Invalid port: %s", parts[0])
+			continue
+		}
+
+		switch action {
+		case "add":
+			target := parts[1] + ":" + parts[2]
+
+			// Call updown script if provided
+			processedTarget := target
+			if updownScript != "" {
+				newTarget, err := executeUpdownScript(action, proto, target)
+				if err != nil {
+					logger.Warn("Updown script error: %v", err)
+				} else if newTarget != "" {
+					processedTarget = newTarget
+				}
+			}
+
+			// Only remove the specific target if it exists
+			err := pm.RemoveTarget(proto, tunnelIP, port)
+			if err != nil {
+				// Ignore "target not found" errors as this is expected for new targets
+				if !strings.Contains(err.Error(), "target not found") {
+					logger.Error("Failed to remove existing target: %v", err)
+				}
+			}
+
+			// Add the new target
+			pm.AddTarget(proto, tunnelIP, port, processedTarget)
+
+		case "remove":
+			logger.Info("Removing target with port %d", port)
+
+			target := parts[1] + ":" + parts[2]
+
+			// Call updown script if provided
+			if updownScript != "" {
+				_, err := executeUpdownScript(action, proto, target)
+				if err != nil {
+					logger.Warn("Updown script error: %v", err)
+				}
+			}
+
+			err := pm.RemoveTarget(proto, tunnelIP, port)
+			if err != nil {
+				logger.Error("Failed to remove target: %v", err)
+				return err
+			}
+		default:
+			logger.Info("Unknown action: %s", action)
+		}
+	}
+
+	return nil
+}
+
+func executeUpdownScript(action, proto, target string) (string, error) {
+	if updownScript == "" {
+		return target, nil
+	}
+
+	// Split the updownScript in case it contains spaces (like "/usr/bin/python3 script.py")
+	parts := strings.Fields(updownScript)
+	if len(parts) == 0 {
+		return target, fmt.Errorf("invalid updown script command")
+	}
+
+	var cmd *exec.Cmd
+	if len(parts) == 1 {
+		// If it's a single executable
+		logger.Info("Executing updown script: %s %s %s %s", updownScript, action, proto, target)
+		cmd = exec.Command(parts[0], action, proto, target)
+	} else {
+		// If it includes interpreter and script
+		args := append(parts[1:], action, proto, target)
+		logger.Info("Executing updown script: %s %s %s %s %s", parts[0], strings.Join(parts[1:], " "), action, proto, target)
+		cmd = exec.Command(parts[0], args...)
+	}
+
+	output, err := cmd.Output()
+	if err != nil {
+		if exitErr, ok := err.(*exec.ExitError); ok {
+			return "", fmt.Errorf("updown script execution failed (exit code %d): %s",
+				exitErr.ExitCode(), string(exitErr.Stderr))
+		}
+		return "", fmt.Errorf("updown script execution failed: %v", err)
+	}
+
+	// If the script returns a new target, use it
+	newTarget := strings.TrimSpace(string(output))
+	if newTarget != "" {
+		logger.Info("Updown script returned new target: %s", newTarget)
+		return newTarget, nil
+	}
+
+	return target, nil
+}
+
+func sendBlueprint(client *websocket.Client) error {
+	if blueprintFile == "" {
+		return nil
+	}
+	// try to read the blueprint file
+	blueprintData, err := os.ReadFile(blueprintFile)
+	if err != nil {
+		logger.Error("Failed to read blueprint file: %v", err)
+	} else {
+		// first we should convert the yaml to json and error if the yaml is bad
+		var yamlObj interface{}
+		var blueprintJsonData string
+
+		err = yaml.Unmarshal(blueprintData, &yamlObj)
+		if err != nil {
+			logger.Error("Failed to parse blueprint YAML: %v", err)
+		} else {
+			// convert to json
+			jsonBytes, err := json.Marshal(yamlObj)
+			if err != nil {
+				logger.Error("Failed to convert blueprint to JSON: %v", err)
+			} else {
+				blueprintJsonData = string(jsonBytes)
+				logger.Debug("Converted blueprint to JSON: %s", blueprintJsonData)
+			}
+		}
+
+		// if we have valid json data, we can send it to the server
+		if blueprintJsonData == "" {
+			logger.Error("No valid blueprint JSON data to send to server")
+			return nil
+		}
+
+		logger.Info("Sending blueprint to server for application")
+
+		// send the blueprint data to the server
+		err = client.SendMessage("newt/blueprint/apply", map[string]interface{}{
+			"blueprint": blueprintJsonData,
+		})
+	}
+
+	return nil
+}

config.go

@@ -1,681 +0,0 @@
-package main
-
-import (
-	"encoding/json"
-	"flag"
-	"fmt"
-	"os"
-	"path/filepath"
-	"runtime"
-	"strconv"
-	"strings"
-	"time"
-
-	"github.com/fosrl/newt/logger"
-	newtpkg "github.com/fosrl/newt/newt"
-)
-
-type stringSlice []string
-
-func (s *stringSlice) String() string {
-	return strings.Join(*s, ",")
-}
-
-func (s *stringSlice) Set(value string) error {
-	*s = append(*s, value)
-	return nil
-}
-
-// configSource records where a resolved setting came from, for --show-config.
-type configSource string
-
-const (
-	sourceDefault configSource = "default"
-	sourceFile    configSource = "file"
-	sourceEnv     configSource = "environment"
-	sourceCLI     configSource = "cli"
-)
-
-// fileSettings mirrors the on-disk JSON config file schema. Fields are
-// pointers (or, for slices, nil-vs-non-empty) so that "absent from the file"
-// can be distinguished from an explicit zero value.
-type fileSettings struct {
-	Endpoint        *string `json:"endpoint"`
-	ID              *string `json:"id"`
-	Secret          *string `json:"secret"`
-	ProvisioningKey *string `json:"provisioningKey"`
-	Name            *string `json:"name"`
-
-	DNS           *string `json:"dns"`
-	LogLevel      *string `json:"logLevel"`
-	UpdownScript  *string `json:"updownScript"`
-	InterfaceName *string `json:"interface"`
-	MTU           *int    `json:"mtu"`
-	Port          *int    `json:"port"`
-
-	UseNativeInterface      *bool   `json:"native"`
-	UseNativeMainInterface  *bool   `json:"nativeMain"`
-	NativeMainInterfaceName *string `json:"interfaceMain"`
-	NoCloud                 *bool   `json:"noCloud"`
-	PreferEndpoint          *string `json:"preferEndpoint"`
-
-	PingInterval        *string `json:"pingInterval"`
-	PingTimeout         *string `json:"pingTimeout"`
-	UDPProxyIdleTimeout *string `json:"udpProxyIdleTimeout"`
-
-	DisableClients            *bool   `json:"disableClients"`
-	DisableSSH                *bool   `json:"disableSsh"`
-	EnforceHealthcheckCert    *bool   `json:"enforceHcCert"`
-	HealthFile                *string `json:"healthFile"`
-	BlueprintFile             *string `json:"blueprintFile"`
-	ProvisioningBlueprintFile *string `json:"provisioningBlueprintFile"`
-
-	DockerSocket                   *string `json:"dockerSocket"`
-	DockerEnforceNetworkValidation *bool   `json:"dockerEnforceNetworkValidation"`
-
-	AuthDaemonKey                    *string `json:"adPreSharedKey"`
-	AuthDaemonPrincipalsFile         *string `json:"adPrincipalsFile"`
-	AuthDaemonCACertPath             *string `json:"adCaCertPath"`
-	AuthDaemonGenerateRandomPassword *bool   `json:"adGenerateRandomPassword"`
-
-	TLSClientCert *string  `json:"tlsClientCertFile"`
-	TLSClientKey  *string  `json:"tlsClientKey"`
-	TLSClientCAs  []string `json:"tlsClientCa"`
-	TLSPrivateKey *string  `json:"tlsClientCert"` // legacy PKCS12 path; matches the key already written by the credential-save path
-
-	MetricsEnabled    *bool   `json:"metrics"`
-	OTLPEnabled       *bool   `json:"otlp"`
-	AdminAddr         *string `json:"metricsAdminAddr"`
-	Region            *string `json:"region"`
-	MetricsAsyncBytes *bool   `json:"metricsAsyncBytes"`
-	PprofEnabled      *bool   `json:"pprof"`
-}
-
-// resolveConfigFilePath determines the settings/credentials file path using
-// the same precedence as every other setting: CLI > env > OS default.
-// It has to run before flag.Parse (which needs the file-resolved defaults),
-// so it scans os.Args directly instead of using the flag package.
-func resolveConfigFilePath(args []string) string {
-	for i, a := range args {
-		if a == "--config-file" || a == "-config-file" {
-			if i+1 < len(args) {
-				return args[i+1]
-			}
-		}
-		if v, ok := strings.CutPrefix(a, "--config-file="); ok {
-			return v
-		}
-		if v, ok := strings.CutPrefix(a, "-config-file="); ok {
-			return v
-		}
-	}
-
-	if v := os.Getenv("CONFIG_FILE"); v != "" {
-		return v
-	}
-
-	var configDir string
-	switch runtime.GOOS {
-	case "darwin":
-		configDir = filepath.Join(os.Getenv("HOME"), "Library", "Application Support", "newt-client")
-	case "windows":
-		configDir = filepath.Join(os.Getenv("PROGRAMDATA"), "newt", "newt-client")
-	default: // linux and others
-		configDir = filepath.Join(os.Getenv("HOME"), ".config", "newt-client")
-	}
-
-	if err := os.MkdirAll(configDir, 0755); err != nil {
-		fmt.Printf("Warning: Failed to create config directory: %v\n", err)
-	}
-
-	return filepath.Join(configDir, "config.json")
-}
-
-// loadFileSettings reads and parses the config file. A missing or empty file
-// is not an error (returns nil, nil) since the file may not exist yet.
-func loadFileSettings(path string) (*fileSettings, error) {
-	data, err := os.ReadFile(path)
-	if err != nil {
-		if os.IsNotExist(err) {
-			return nil, nil
-		}
-		return nil, err
-	}
-	if len(strings.TrimSpace(string(data))) == 0 {
-		return nil, nil
-	}
-
-	var fs fileSettings
-	if err := json.Unmarshal(data, &fs); err != nil {
-		return nil, fmt.Errorf("failed to parse config file %s: %w", path, err)
-	}
-	return &fs, nil
-}
-
-func applyStr(dst *string, v *string, key string, sources map[string]string, src configSource) {
-	if v != nil {
-		*dst = *v
-		sources[key] = string(src)
-	}
-}
-
-func applyBool(dst *bool, v *bool, key string, sources map[string]string, src configSource) {
-	if v != nil {
-		*dst = *v
-		sources[key] = string(src)
-	}
-}
-
-func applyEnvStr(dst *string, envName, key string, sources map[string]string) {
-	if v := os.Getenv(envName); v != "" {
-		*dst = v
-		sources[key] = string(sourceEnv)
-	}
-}
-
-func applyEnvBool(dst *bool, envName, key string, sources map[string]string) {
-	if v := os.Getenv(envName); v != "" {
-		*dst = v == "true"
-		sources[key] = string(sourceEnv)
-	}
-}
-
-// validateTLSConfig validates that TLS config fields are consistent and that
-// referenced files exist.
-func validateTLSConfig(cfg newtpkg.Config) error {
-	pkcs12Specified := cfg.TLSPrivateKey != ""
-	separateFilesSpecified := cfg.TLSClientCert != "" || cfg.TLSClientKey != "" || len(cfg.TLSClientCAs) > 0
-
-	if pkcs12Specified && separateFilesSpecified {
-		return fmt.Errorf("cannot use both PKCS12 format (--tls-client-cert) and separate certificate files (--tls-client-cert-file, --tls-client-key, --tls-client-ca)")
-	}
-
-	if (cfg.TLSClientCert != "" && cfg.TLSClientKey == "") || (cfg.TLSClientCert == "" && cfg.TLSClientKey != "") {
-		return fmt.Errorf("both --tls-client-cert-file and --tls-client-key must be specified together")
-	}
-
-	if cfg.TLSClientCert != "" {
-		if _, err := os.Stat(cfg.TLSClientCert); os.IsNotExist(err) {
-			return fmt.Errorf("client certificate file does not exist: %s", cfg.TLSClientCert)
-		}
-	}
-
-	if cfg.TLSClientKey != "" {
-		if _, err := os.Stat(cfg.TLSClientKey); os.IsNotExist(err) {
-			return fmt.Errorf("client key file does not exist: %s", cfg.TLSClientKey)
-		}
-	}
-
-	for _, caFile := range cfg.TLSClientCAs {
-		if _, err := os.Stat(caFile); os.IsNotExist(err) {
-			return fmt.Errorf("CA certificate file does not exist: %s", caFile)
-		}
-	}
-
-	if cfg.TLSPrivateKey != "" {
-		if _, err := os.Stat(cfg.TLSPrivateKey); os.IsNotExist(err) {
-			return fmt.Errorf("PKCS12 certificate file does not exist: %s", cfg.TLSPrivateKey)
-		}
-	}
-
-	return nil
-}
-
-// parseDurationEnvOrFlag parses s as a duration, using defaultVal on failure.
-func parseDurationEnvOrFlag(s string, defaultVal time.Duration, label string) time.Duration {
-	if s == "" {
-		return defaultVal
-	}
-	d, err := time.ParseDuration(s)
-	if err != nil || d <= 0 {
-		fmt.Printf("Invalid %s value: %s, using default %v\n", label, s, defaultVal)
-		return defaultVal
-	}
-	return d
-}
-
-// loadNewtConfig resolves configuration with priority cli > env > file >
-// default, then returns a populated newtpkg.Config. This function calls
-// flag.Parse internally and will exit the process if --version or
-// --show-config is passed.
-func loadNewtConfig() newtpkg.Config {
-	sources := make(map[string]string)
-
-	configPath := resolveConfigFilePath(os.Args[1:])
-	fileCfg, err := loadFileSettings(configPath)
-	if err != nil {
-		logger.Fatal("Failed to load config file: %v", err)
-	}
-
-	// ---- defaults ----
-	cfg := newtpkg.Config{
-		Version:  newtVersion,
-		Platform: newtPlatform,
-
-		DNS:                      "9.9.9.9",
-		LogLevel:                 "INFO",
-		InterfaceName:            "newt",
-		NativeMainInterfaceName:  "newt",
-		AuthDaemonPrincipalsFile: "/var/run/auth-daemon/principals",
-		AuthDaemonCACertPath:     "/etc/ssh/ca.pem",
-		AdminAddr:                "127.0.0.1:2112",
-	}
-
-	mtuStr := "1280"
-	portStr := ""
-	pingIntervalStr := "15s"
-	pingTimeoutStr := "7s"
-	udpProxyIdleTimeoutStr := "90s"
-	dockerEnforceStr := "false"
-
-	// ---- layer 1: config file ----
-	if fileCfg != nil {
-		applyStr(&cfg.Endpoint, fileCfg.Endpoint, "endpoint", sources, sourceFile)
-		applyStr(&cfg.ID, fileCfg.ID, "id", sources, sourceFile)
-		applyStr(&cfg.Secret, fileCfg.Secret, "secret", sources, sourceFile)
-		applyStr(&cfg.ProvisioningKey, fileCfg.ProvisioningKey, "provisioning-key", sources, sourceFile)
-		applyStr(&cfg.NewtName, fileCfg.Name, "name", sources, sourceFile)
-
-		applyStr(&cfg.DNS, fileCfg.DNS, "dns", sources, sourceFile)
-		applyStr(&cfg.LogLevel, fileCfg.LogLevel, "log-level", sources, sourceFile)
-		applyStr(&cfg.UpdownScript, fileCfg.UpdownScript, "updown", sources, sourceFile)
-		applyStr(&cfg.InterfaceName, fileCfg.InterfaceName, "interface", sources, sourceFile)
-		if fileCfg.MTU != nil {
-			mtuStr = strconv.Itoa(*fileCfg.MTU)
-			sources["mtu"] = string(sourceFile)
-		}
-		if fileCfg.Port != nil {
-			portStr = strconv.Itoa(*fileCfg.Port)
-			sources["port"] = string(sourceFile)
-		}
-
-		applyBool(&cfg.UseNativeInterface, fileCfg.UseNativeInterface, "native", sources, sourceFile)
-		applyBool(&cfg.UseNativeMainInterface, fileCfg.UseNativeMainInterface, "native-main", sources, sourceFile)
-		applyStr(&cfg.NativeMainInterfaceName, fileCfg.NativeMainInterfaceName, "interface-main", sources, sourceFile)
-		applyBool(&cfg.NoCloud, fileCfg.NoCloud, "no-cloud", sources, sourceFile)
-		applyStr(&cfg.PreferEndpoint, fileCfg.PreferEndpoint, "prefer-endpoint", sources, sourceFile)
-
-		applyStr(&pingIntervalStr, fileCfg.PingInterval, "ping-interval", sources, sourceFile)
-		applyStr(&pingTimeoutStr, fileCfg.PingTimeout, "ping-timeout", sources, sourceFile)
-		applyStr(&udpProxyIdleTimeoutStr, fileCfg.UDPProxyIdleTimeout, "udp-proxy-idle-timeout", sources, sourceFile)
-
-		applyBool(&cfg.DisableClients, fileCfg.DisableClients, "disable-clients", sources, sourceFile)
-		applyBool(&cfg.DisableSSH, fileCfg.DisableSSH, "disable-ssh", sources, sourceFile)
-		applyBool(&cfg.EnforceHealthcheckCert, fileCfg.EnforceHealthcheckCert, "enforce-hc-cert", sources, sourceFile)
-		applyStr(&cfg.HealthFile, fileCfg.HealthFile, "health-file", sources, sourceFile)
-		applyStr(&cfg.BlueprintFile, fileCfg.BlueprintFile, "blueprint-file", sources, sourceFile)
-		applyStr(&cfg.ProvisioningBlueprintFile, fileCfg.ProvisioningBlueprintFile, "provisioning-blueprint-file", sources, sourceFile)
-
-		applyStr(&cfg.DockerSocket, fileCfg.DockerSocket, "docker-socket", sources, sourceFile)
-		if fileCfg.DockerEnforceNetworkValidation != nil {
-			dockerEnforceStr = strconv.FormatBool(*fileCfg.DockerEnforceNetworkValidation)
-			sources["docker-enforce-network-validation"] = string(sourceFile)
-		}
-
-		applyStr(&cfg.AuthDaemonKey, fileCfg.AuthDaemonKey, "ad-pre-shared-key", sources, sourceFile)
-		applyStr(&cfg.AuthDaemonPrincipalsFile, fileCfg.AuthDaemonPrincipalsFile, "ad-principals-file", sources, sourceFile)
-		applyStr(&cfg.AuthDaemonCACertPath, fileCfg.AuthDaemonCACertPath, "ad-ca-cert-path", sources, sourceFile)
-		applyBool(&cfg.AuthDaemonGenerateRandomPassword, fileCfg.AuthDaemonGenerateRandomPassword, "ad-generate-random-password", sources, sourceFile)
-
-		applyStr(&cfg.TLSClientCert, fileCfg.TLSClientCert, "tls-client-cert-file", sources, sourceFile)
-		applyStr(&cfg.TLSClientKey, fileCfg.TLSClientKey, "tls-client-key", sources, sourceFile)
-		if len(fileCfg.TLSClientCAs) > 0 {
-			cfg.TLSClientCAs = append(cfg.TLSClientCAs, fileCfg.TLSClientCAs...)
-			sources["tls-client-ca"] = string(sourceFile)
-		}
-		applyStr(&cfg.TLSPrivateKey, fileCfg.TLSPrivateKey, "tls-client-cert", sources, sourceFile)
-
-		applyBool(&cfg.MetricsEnabled, fileCfg.MetricsEnabled, "metrics", sources, sourceFile)
-		applyBool(&cfg.OTLPEnabled, fileCfg.OTLPEnabled, "otlp", sources, sourceFile)
-		applyStr(&cfg.AdminAddr, fileCfg.AdminAddr, "metrics-admin-addr", sources, sourceFile)
-		applyStr(&cfg.Region, fileCfg.Region, "region", sources, sourceFile)
-		applyBool(&cfg.MetricsAsyncBytes, fileCfg.MetricsAsyncBytes, "metrics-async-bytes", sources, sourceFile)
-		applyBool(&cfg.PprofEnabled, fileCfg.PprofEnabled, "pprof", sources, sourceFile)
-	}
-
-	// ---- layer 2: environment variables ----
-	applyEnvStr(&cfg.Endpoint, "PANGOLIN_ENDPOINT", "endpoint", sources)
-	applyEnvStr(&cfg.ID, "NEWT_ID", "id", sources)
-	applyEnvStr(&cfg.Secret, "NEWT_SECRET", "secret", sources)
-	applyEnvStr(&cfg.ProvisioningKey, "NEWT_PROVISIONING_KEY", "provisioning-key", sources)
-	applyEnvStr(&cfg.NewtName, "NEWT_NAME", "name", sources)
-
-	applyEnvStr(&cfg.DNS, "DNS", "dns", sources)
-	applyEnvStr(&cfg.LogLevel, "LOG_LEVEL", "log-level", sources)
-	applyEnvStr(&cfg.UpdownScript, "UPDOWN_SCRIPT", "updown", sources)
-	applyEnvStr(&cfg.InterfaceName, "INTERFACE", "interface", sources)
-	applyEnvStr(&mtuStr, "MTU", "mtu", sources)
-	applyEnvStr(&portStr, "PORT", "port", sources)
-
-	applyEnvBool(&cfg.UseNativeInterface, "USE_NATIVE_INTERFACE", "native", sources)
-	applyEnvBool(&cfg.UseNativeMainInterface, "USE_NATIVE_MAIN_INTERFACE", "native-main", sources)
-	applyEnvStr(&cfg.NativeMainInterfaceName, "INTERFACE_MAIN", "interface-main", sources)
-	applyEnvBool(&cfg.NoCloud, "NO_CLOUD", "no-cloud", sources)
-
-	applyEnvStr(&pingIntervalStr, "PING_INTERVAL", "ping-interval", sources)
-	applyEnvStr(&pingTimeoutStr, "PING_TIMEOUT", "ping-timeout", sources)
-	applyEnvStr(&udpProxyIdleTimeoutStr, "NEWT_UDP_PROXY_IDLE_TIMEOUT", "udp-proxy-idle-timeout", sources)
-
-	applyEnvBool(&cfg.DisableClients, "DISABLE_CLIENTS", "disable-clients", sources)
-	applyEnvBool(&cfg.DisableSSH, "DISABLE_SSH", "disable-ssh", sources)
-	applyEnvBool(&cfg.EnforceHealthcheckCert, "ENFORCE_HC_CERT", "enforce-hc-cert", sources)
-	applyEnvStr(&cfg.HealthFile, "HEALTH_FILE", "health-file", sources)
-	applyEnvStr(&cfg.BlueprintFile, "BLUEPRINT_FILE", "blueprint-file", sources)
-	applyEnvStr(&cfg.ProvisioningBlueprintFile, "PROVISIONING_BLUEPRINT_FILE", "provisioning-blueprint-file", sources)
-
-	applyEnvStr(&cfg.DockerSocket, "DOCKER_SOCKET", "docker-socket", sources)
-	applyEnvStr(&dockerEnforceStr, "DOCKER_ENFORCE_NETWORK_VALIDATION", "docker-enforce-network-validation", sources)
-
-	applyEnvStr(&cfg.AuthDaemonKey, "AD_KEY", "ad-pre-shared-key", sources)
-	applyEnvStr(&cfg.AuthDaemonPrincipalsFile, "AD_PRINCIPALS_FILE", "ad-principals-file", sources)
-	applyEnvStr(&cfg.AuthDaemonCACertPath, "AD_CA_CERT_PATH", "ad-ca-cert-path", sources)
-	if v, err := strconv.ParseBool(os.Getenv("AD_GENERATE_RANDOM_PASSWORD")); err == nil {
-		cfg.AuthDaemonGenerateRandomPassword = v
-		sources["ad-generate-random-password"] = string(sourceEnv)
-	}
-
-	applyEnvStr(&cfg.TLSClientCert, "TLS_CLIENT_CERT", "tls-client-cert-file", sources)
-	applyEnvStr(&cfg.TLSClientKey, "TLS_CLIENT_KEY", "tls-client-key", sources)
-	if tlsClientCAsEnv := os.Getenv("TLS_CLIENT_CAS"); tlsClientCAsEnv != "" {
-		for _, ca := range strings.Split(tlsClientCAsEnv, ",") {
-			cfg.TLSClientCAs = append(cfg.TLSClientCAs, strings.TrimSpace(ca))
-		}
-		sources["tls-client-ca"] = string(sourceEnv)
-	}
-	applyEnvStr(&cfg.TLSPrivateKey, "TLS_CLIENT_CERT_PKCS12", "tls-client-cert", sources)
-
-	// Legacy PKCS12 backward-compat: fall back to the (already layered)
-	// separate-cert-file value for PKCS12 when the newer fields are unset.
-	if cfg.TLSPrivateKey == "" && cfg.TLSClientKey == "" && len(cfg.TLSClientCAs) == 0 && cfg.TLSClientCert != "" {
-		cfg.TLSPrivateKey = cfg.TLSClientCert
-		sources["tls-client-cert"] = sources["tls-client-cert-file"]
-	}
-
-	if metricsEnabledEnv := os.Getenv("NEWT_METRICS_PROMETHEUS_ENABLED"); metricsEnabledEnv != "" {
-		if v, err := strconv.ParseBool(metricsEnabledEnv); err == nil {
-			cfg.MetricsEnabled = v
-		} else {
-			cfg.MetricsEnabled = true
-		}
-		sources["metrics"] = string(sourceEnv)
-	}
-	applyEnvBool(&cfg.OTLPEnabled, "NEWT_METRICS_OTLP_ENABLED", "otlp", sources)
-	applyEnvStr(&cfg.AdminAddr, "NEWT_ADMIN_ADDR", "metrics-admin-addr", sources)
-	applyEnvStr(&cfg.Region, "NEWT_REGION", "region", sources)
-	applyEnvBool(&cfg.MetricsAsyncBytes, "NEWT_METRICS_ASYNC_BYTES", "metrics-async-bytes", sources)
-	applyEnvBool(&cfg.PprofEnabled, "NEWT_PPROF_ENABLED", "pprof", sources)
-
-	// ---- layer 3: CLI flags (always registered; default = file/env-resolved value) ----
-	origEndpoint, origID, origSecret := cfg.Endpoint, cfg.ID, cfg.Secret
-	origMTU, origDNS, origLogLevel := mtuStr, cfg.DNS, cfg.LogLevel
-	origUpdown, origInterface, origPort := cfg.UpdownScript, cfg.InterfaceName, portStr
-	origNative, origNativeMain, origInterfaceMain := cfg.UseNativeInterface, cfg.UseNativeMainInterface, cfg.NativeMainInterfaceName
-	origDisableClients, origDisableSSH, origEnforceHC := cfg.DisableClients, cfg.DisableSSH, cfg.EnforceHealthcheckCert
-	origDockerSocket, origPingInterval, origPingTimeout := cfg.DockerSocket, pingIntervalStr, pingTimeoutStr
-	origUDPIdle, origProvisioningKey, origName := udpProxyIdleTimeoutStr, cfg.ProvisioningKey, cfg.NewtName
-	origTLSCert, origTLSKey, origDockerEnforce := cfg.TLSClientCert, cfg.TLSClientKey, dockerEnforceStr
-	origHealthFile, origBlueprintFile, origProvBlueprintFile := cfg.HealthFile, cfg.BlueprintFile, cfg.ProvisioningBlueprintFile
-	origNoCloud, origTLSPrivateKey := cfg.NoCloud, cfg.TLSPrivateKey
-	origMetrics, origOTLP, origAdminAddr := cfg.MetricsEnabled, cfg.OTLPEnabled, cfg.AdminAddr
-	origMetricsAsync, origPprof, origRegion := cfg.MetricsAsyncBytes, cfg.PprofEnabled, cfg.Region
-	origADKey, origADPrincipals, origADCACert := cfg.AuthDaemonKey, cfg.AuthDaemonPrincipalsFile, cfg.AuthDaemonCACertPath
-	origADRandomPass := cfg.AuthDaemonGenerateRandomPassword
-
-	flag.StringVar(&cfg.Endpoint, "endpoint", cfg.Endpoint, "Endpoint of your pangolin server")
-	flag.StringVar(&cfg.ID, "id", cfg.ID, "Newt ID")
-	flag.StringVar(&cfg.Secret, "secret", cfg.Secret, "Newt secret")
-	flag.StringVar(&mtuStr, "mtu", mtuStr, "MTU to use")
-	flag.StringVar(&cfg.DNS, "dns", cfg.DNS, "DNS server to use")
-	flag.StringVar(&cfg.LogLevel, "log-level", cfg.LogLevel, "Log level (DEBUG, INFO, WARN, ERROR, FATAL)")
-	flag.StringVar(&cfg.UpdownScript, "updown", cfg.UpdownScript, "Path to updown script to be called when targets are added or removed")
-	flag.StringVar(&cfg.InterfaceName, "interface", cfg.InterfaceName, "Name of the WireGuard interface")
-	flag.StringVar(&portStr, "port", portStr, "Port for client WireGuard interface")
-	flag.BoolVar(&cfg.UseNativeInterface, "native", cfg.UseNativeInterface, "Use native WireGuard interface for client tunnels")
-	flag.BoolVar(&cfg.UseNativeMainInterface, "native-main", cfg.UseNativeMainInterface, "Use native WireGuard interface for the main tunnel (instead of netstack)")
-	// making this the same as above should prevent them from running together
-	flag.StringVar(&cfg.NativeMainInterfaceName, "interface-main", cfg.NativeMainInterfaceName, "Name of the native main tunnel WireGuard interface (used with --native-main)")
-	flag.BoolVar(&cfg.DisableClients, "disable-clients", cfg.DisableClients, "Disable clients on the WireGuard interface")
-	flag.BoolVar(&cfg.DisableSSH, "disable-ssh", cfg.DisableSSH, "Disable SSH auth daemon and native SSH mode (remote auth daemon still works)")
-	flag.BoolVar(&cfg.EnforceHealthcheckCert, "enforce-hc-cert", cfg.EnforceHealthcheckCert, "Enforce certificate validation for health checks (default: false, accepts any cert)")
-	flag.StringVar(&cfg.DockerSocket, "docker-socket", cfg.DockerSocket, "Path or address to Docker socket (typically unix:///var/run/docker.sock)")
-	flag.StringVar(&pingIntervalStr, "ping-interval", pingIntervalStr, "Interval for pinging the server (default 15s)")
-	flag.StringVar(&pingTimeoutStr, "ping-timeout", pingTimeoutStr, "Timeout for each ping (default 7s)")
-	flag.StringVar(&udpProxyIdleTimeoutStr, "udp-proxy-idle-timeout", udpProxyIdleTimeoutStr, "Idle timeout for UDP proxied client flows before cleanup")
-	flag.StringVar(&cfg.PreferEndpoint, "prefer-endpoint", cfg.PreferEndpoint, "Prefer this endpoint for the connection (if set, will override the endpoint from the server)")
-	flag.StringVar(&cfg.ProvisioningKey, "provisioning-key", cfg.ProvisioningKey, "One-time provisioning key used to obtain a newt ID and secret from the server")
-	flag.StringVar(&cfg.NewtName, "name", cfg.NewtName, "Name for the site created during provisioning (supports {{env.VAR}} interpolation)")
-	flag.StringVar(&cfg.ConfigFile, "config-file", configPath, "Path to config file (overrides CONFIG_FILE env var and default location)")
-	flag.StringVar(&cfg.TLSClientCert, "tls-client-cert-file", cfg.TLSClientCert, "Path to client certificate file (PEM/DER format)")
-	flag.StringVar(&cfg.TLSClientKey, "tls-client-key", cfg.TLSClientKey, "Path to client private key file (PEM/DER format)")
-	// Backward-compat dummy flag (auth daemon is always enabled now)
-	flag.Bool("auth-daemon", false, "Enable auth daemon mode (deprecated, always enabled)")
-
-	var tlsClientCAsFlag stringSlice
-	flag.Var(&tlsClientCAsFlag, "tls-client-ca", "Path to CA certificate file for validating remote certificates (can be specified multiple times)")
-
-	flag.StringVar(&cfg.TLSPrivateKey, "tls-client-cert", cfg.TLSPrivateKey, "Path to client certificate (PKCS12 format) - DEPRECATED: use --tls-client-cert-file and --tls-client-key instead")
-	flag.StringVar(&dockerEnforceStr, "docker-enforce-network-validation", dockerEnforceStr, "Enforce validation of container on newt network (true or false)")
-	flag.StringVar(&cfg.HealthFile, "health-file", cfg.HealthFile, "Path to health file (if unset, health file won't be written)")
-	flag.StringVar(&cfg.BlueprintFile, "blueprint-file", cfg.BlueprintFile, "Path to blueprint file (if unset, no blueprint will be applied)")
-	flag.StringVar(&cfg.ProvisioningBlueprintFile, "provisioning-blueprint-file", cfg.ProvisioningBlueprintFile, "Path to blueprint file applied once after a provisioning credential exchange (if unset, no provisioning blueprint will be applied)")
-	flag.BoolVar(&cfg.NoCloud, "no-cloud", cfg.NoCloud, "Disable cloud failover")
-	flag.BoolVar(&cfg.MetricsEnabled, "metrics", cfg.MetricsEnabled, "Enable Prometheus metrics exporter")
-	flag.BoolVar(&cfg.OTLPEnabled, "otlp", cfg.OTLPEnabled, "Enable OTLP exporters (metrics/traces) to OTEL_EXPORTER_OTLP_ENDPOINT")
-	flag.StringVar(&cfg.AdminAddr, "metrics-admin-addr", cfg.AdminAddr, "Admin/metrics bind address")
-	flag.BoolVar(&cfg.MetricsAsyncBytes, "metrics-async-bytes", cfg.MetricsAsyncBytes, "Enable async bytes counting (background flush; lower hot path overhead)")
-	flag.BoolVar(&cfg.PprofEnabled, "pprof", cfg.PprofEnabled, "Enable pprof debug endpoints on admin server")
-	flag.StringVar(&cfg.Region, "region", cfg.Region, "Optional region resource attribute (also NEWT_REGION)")
-	flag.StringVar(&cfg.AuthDaemonKey, "ad-pre-shared-key", cfg.AuthDaemonKey, "Pre-shared key for auth daemon authentication")
-	flag.StringVar(&cfg.AuthDaemonPrincipalsFile, "ad-principals-file", cfg.AuthDaemonPrincipalsFile, "Path to the principals file for auth daemon")
-	flag.StringVar(&cfg.AuthDaemonCACertPath, "ad-ca-cert-path", cfg.AuthDaemonCACertPath, "Path to the CA certificate file for auth daemon")
-	flag.BoolVar(&cfg.AuthDaemonGenerateRandomPassword, "ad-generate-random-password", cfg.AuthDaemonGenerateRandomPassword, "Generate a random password for authenticated users")
-
-	version := flag.Bool("version", false, "Print the version")
-	showConfig := flag.Bool("show-config", false, "Show configuration values and their sources, then exit")
-
-	flag.Parse()
-
-	// ---- post-parse processing ----
-
-	// Merge CLI CA files onto whatever file/env already contributed.
-	if len(tlsClientCAsFlag) > 0 {
-		cfg.TLSClientCAs = append(cfg.TLSClientCAs, tlsClientCAsFlag...)
-		sources["tls-client-ca"] = string(sourceCLI)
-	}
-
-	markCLI := func(key string, changed bool) {
-		if changed {
-			sources[key] = string(sourceCLI)
-		}
-	}
-	markCLI("endpoint", cfg.Endpoint != origEndpoint)
-	markCLI("id", cfg.ID != origID)
-	markCLI("secret", cfg.Secret != origSecret)
-	markCLI("mtu", mtuStr != origMTU)
-	markCLI("dns", cfg.DNS != origDNS)
-	markCLI("log-level", cfg.LogLevel != origLogLevel)
-	markCLI("updown", cfg.UpdownScript != origUpdown)
-	markCLI("interface", cfg.InterfaceName != origInterface)
-	markCLI("port", portStr != origPort)
-	markCLI("native", cfg.UseNativeInterface != origNative)
-	markCLI("native-main", cfg.UseNativeMainInterface != origNativeMain)
-	markCLI("interface-main", cfg.NativeMainInterfaceName != origInterfaceMain)
-	markCLI("disable-clients", cfg.DisableClients != origDisableClients)
-	markCLI("disable-ssh", cfg.DisableSSH != origDisableSSH)
-	markCLI("enforce-hc-cert", cfg.EnforceHealthcheckCert != origEnforceHC)
-	markCLI("docker-socket", cfg.DockerSocket != origDockerSocket)
-	markCLI("ping-interval", pingIntervalStr != origPingInterval)
-	markCLI("ping-timeout", pingTimeoutStr != origPingTimeout)
-	markCLI("udp-proxy-idle-timeout", udpProxyIdleTimeoutStr != origUDPIdle)
-	markCLI("provisioning-key", cfg.ProvisioningKey != origProvisioningKey)
-	markCLI("name", cfg.NewtName != origName)
-	markCLI("tls-client-cert-file", cfg.TLSClientCert != origTLSCert)
-	markCLI("tls-client-key", cfg.TLSClientKey != origTLSKey)
-	markCLI("tls-client-cert", cfg.TLSPrivateKey != origTLSPrivateKey)
-	markCLI("docker-enforce-network-validation", dockerEnforceStr != origDockerEnforce)
-	markCLI("health-file", cfg.HealthFile != origHealthFile)
-	markCLI("blueprint-file", cfg.BlueprintFile != origBlueprintFile)
-	markCLI("provisioning-blueprint-file", cfg.ProvisioningBlueprintFile != origProvBlueprintFile)
-	markCLI("no-cloud", cfg.NoCloud != origNoCloud)
-	markCLI("metrics", cfg.MetricsEnabled != origMetrics)
-	markCLI("otlp", cfg.OTLPEnabled != origOTLP)
-	markCLI("metrics-admin-addr", cfg.AdminAddr != origAdminAddr)
-	markCLI("metrics-async-bytes", cfg.MetricsAsyncBytes != origMetricsAsync)
-	markCLI("pprof", cfg.PprofEnabled != origPprof)
-	markCLI("region", cfg.Region != origRegion)
-	markCLI("ad-pre-shared-key", cfg.AuthDaemonKey != origADKey)
-	markCLI("ad-principals-file", cfg.AuthDaemonPrincipalsFile != origADPrincipals)
-	markCLI("ad-ca-cert-path", cfg.AuthDaemonCACertPath != origADCACert)
-	markCLI("ad-generate-random-password", cfg.AuthDaemonGenerateRandomPassword != origADRandomPass)
-	if cfg.ConfigFile != configPath {
-		sources["config-file"] = string(sourceCLI)
-	}
-
-	// Version check (exits process)
-	if *version {
-		fmt.Println("Newt version " + newtVersion)
-		os.Exit(0)
-	}
-
-	if *showConfig {
-		printShowConfig(cfg, sources, configPath, mtuStr, portStr, pingIntervalStr, pingTimeoutStr, udpProxyIdleTimeoutStr, dockerEnforceStr)
-		os.Exit(0)
-	}
-
-	logger.Info("Newt version %s", newtVersion)
-
-	// Parse port
-	if portStr != "" {
-		portInt, err := strconv.Atoi(portStr)
-		if err != nil {
-			logger.Warn("Failed to parse PORT, choosing a random port")
-		} else {
-			cfg.Port = uint16(portInt)
-		}
-	}
-
-	// Parse MTU
-	if mtuStr == "" {
-		mtuStr = "1280"
-	}
-	mtuInt, err := strconv.Atoi(mtuStr)
-	if err != nil {
-		logger.Fatal("Failed to parse MTU: %v", err)
-	}
-	cfg.MTU = mtuInt
-
-	// Parse docker network validation flag
-	if v, err := strconv.ParseBool(dockerEnforceStr); err == nil {
-		cfg.DockerEnforceNetworkValidation = v
-	} else {
-		logger.Info("Docker enforce network validation cannot be parsed. Defaulting to 'false'")
-		cfg.DockerEnforceNetworkValidation = false
-	}
-
-	// Parse durations (after flag.Parse so CLI flags take effect)
-	cfg.PingInterval = parseDurationEnvOrFlag(pingIntervalStr, 15*time.Second, "PING_INTERVAL")
-	cfg.PingTimeout = parseDurationEnvOrFlag(pingTimeoutStr, 7*time.Second, "PING_TIMEOUT")
-	cfg.UDPProxyIdleTimeout = parseDurationEnvOrFlag(udpProxyIdleTimeoutStr, 90*time.Second, "NEWT_UDP_PROXY_IDLE_TIMEOUT")
-
-	return cfg
-}
-
-// printShowConfig prints the resolved configuration and the source of each value
-func printShowConfig(cfg newtpkg.Config, sources map[string]string, configPath, mtuStr, portStr, pingIntervalStr, pingTimeoutStr, udpProxyIdleTimeoutStr, dockerEnforceStr string) {
-	getSource := func(key string) string {
-		if s, ok := sources[key]; ok && s != "" {
-			return s
-		}
-		return string(sourceDefault)
-	}
-	mask := func(key, value string) string {
-		if key == "secret" && value != "" {
-			if len(value) > 8 {
-				return value[:4] + "****" + value[len(value)-4:]
-			}
-			return "****"
-		}
-		if value == "" {
-			return "(not set)"
-		}
-		return value
-	}
-
-	fmt.Print("\n=== Newt Configuration ===\n\n")
-	fmt.Printf("Config File: %s\n", configPath)
-	if _, err := os.Stat(configPath); err == nil {
-		fmt.Printf("Config File Status: exists\n")
-	} else {
-		fmt.Printf("Config File Status: not found\n")
-	}
-
-	fmt.Println("\n--- Configuration Values ---")
-	fmt.Print("(Format: Setting = Value [source])\n\n")
-
-	fmt.Println("Connection:")
-	fmt.Printf("  endpoint         = %s [%s]\n", mask("endpoint", cfg.Endpoint), getSource("endpoint"))
-	fmt.Printf("  id               = %s [%s]\n", mask("id", cfg.ID), getSource("id"))
-	fmt.Printf("  secret           = %s [%s]\n", mask("secret", cfg.Secret), getSource("secret"))
-	fmt.Printf("  provisioning-key = %s [%s]\n", mask("provisioning-key", cfg.ProvisioningKey), getSource("provisioning-key"))
-	fmt.Printf("  name             = %s [%s]\n", mask("name", cfg.NewtName), getSource("name"))
-	fmt.Printf("  prefer-endpoint  = %s [%s]\n", mask("prefer-endpoint", cfg.PreferEndpoint), getSource("prefer-endpoint"))
-
-	fmt.Println("\nNetwork:")
-	fmt.Printf("  mtu              = %s [%s]\n", mtuStr, getSource("mtu"))
-	fmt.Printf("  dns              = %s [%s]\n", cfg.DNS, getSource("dns"))
-	fmt.Printf("  interface        = %s [%s]\n", cfg.InterfaceName, getSource("interface"))
-	fmt.Printf("  port             = %s [%s]\n", mask("port", portStr), getSource("port"))
-	fmt.Printf("  native           = %v [%s]\n", cfg.UseNativeInterface, getSource("native"))
-	fmt.Printf("  native-main      = %v [%s]\n", cfg.UseNativeMainInterface, getSource("native-main"))
-	fmt.Printf("  interface-main   = %s [%s]\n", cfg.NativeMainInterfaceName, getSource("interface-main"))
-	fmt.Printf("  no-cloud         = %v [%s]\n", cfg.NoCloud, getSource("no-cloud"))
-
-	fmt.Println("\nLogging:")
-	fmt.Printf("  log-level        = %s [%s]\n", cfg.LogLevel, getSource("log-level"))
-
-	fmt.Println("\nTiming:")
-	fmt.Printf("  ping-interval           = %s [%s]\n", pingIntervalStr, getSource("ping-interval"))
-	fmt.Printf("  ping-timeout            = %s [%s]\n", pingTimeoutStr, getSource("ping-timeout"))
-	fmt.Printf("  udp-proxy-idle-timeout  = %s [%s]\n", udpProxyIdleTimeoutStr, getSource("udp-proxy-idle-timeout"))
-
-	fmt.Println("\nFeatures:")
-	fmt.Printf("  disable-clients             = %v [%s]\n", cfg.DisableClients, getSource("disable-clients"))
-	fmt.Printf("  disable-ssh                 = %v [%s]\n", cfg.DisableSSH, getSource("disable-ssh"))
-	fmt.Printf("  enforce-hc-cert             = %v [%s]\n", cfg.EnforceHealthcheckCert, getSource("enforce-hc-cert"))
-	fmt.Printf("  health-file                 = %s [%s]\n", mask("health-file", cfg.HealthFile), getSource("health-file"))
-	fmt.Printf("  blueprint-file              = %s [%s]\n", mask("blueprint-file", cfg.BlueprintFile), getSource("blueprint-file"))
-	fmt.Printf("  provisioning-blueprint-file = %s [%s]\n", mask("provisioning-blueprint-file", cfg.ProvisioningBlueprintFile), getSource("provisioning-blueprint-file"))
-	fmt.Printf("  updown                      = %s [%s]\n", mask("updown", cfg.UpdownScript), getSource("updown"))
-
-	fmt.Println("\nDocker:")
-	fmt.Printf("  docker-socket                     = %s [%s]\n", mask("docker-socket", cfg.DockerSocket), getSource("docker-socket"))
-	fmt.Printf("  docker-enforce-network-validation = %s [%s]\n", dockerEnforceStr, getSource("docker-enforce-network-validation"))
-
-	fmt.Println("\nAuth Daemon:")
-	fmt.Printf("  ad-pre-shared-key           = %s [%s]\n", mask("ad-pre-shared-key", cfg.AuthDaemonKey), getSource("ad-pre-shared-key"))
-	fmt.Printf("  ad-principals-file          = %s [%s]\n", cfg.AuthDaemonPrincipalsFile, getSource("ad-principals-file"))
-	fmt.Printf("  ad-ca-cert-path             = %s [%s]\n", cfg.AuthDaemonCACertPath, getSource("ad-ca-cert-path"))
-	fmt.Printf("  ad-generate-random-password = %v [%s]\n", cfg.AuthDaemonGenerateRandomPassword, getSource("ad-generate-random-password"))
-
-	fmt.Println("\nTLS:")
-	fmt.Printf("  tls-client-cert-file = %s [%s]\n", mask("tls-client-cert-file", cfg.TLSClientCert), getSource("tls-client-cert-file"))
-	fmt.Printf("  tls-client-key       = %s [%s]\n", mask("tls-client-key", cfg.TLSClientKey), getSource("tls-client-key"))
-	fmt.Printf("  tls-client-ca        = %v [%s]\n", cfg.TLSClientCAs, getSource("tls-client-ca"))
-	fmt.Printf("  tls-client-cert      = %s [%s] (deprecated PKCS12 path)\n", mask("tls-client-cert", cfg.TLSPrivateKey), getSource("tls-client-cert"))
-
-	fmt.Println("\nMetrics/Observability:")
-	fmt.Printf("  metrics             = %v [%s]\n", cfg.MetricsEnabled, getSource("metrics"))
-	fmt.Printf("  otlp                = %v [%s]\n", cfg.OTLPEnabled, getSource("otlp"))
-	fmt.Printf("  metrics-admin-addr  = %s [%s]\n", cfg.AdminAddr, getSource("metrics-admin-addr"))
-	fmt.Printf("  metrics-async-bytes = %v [%s]\n", cfg.MetricsAsyncBytes, getSource("metrics-async-bytes"))
-	fmt.Printf("  pprof               = %v [%s]\n", cfg.PprofEnabled, getSource("pprof"))
-	fmt.Printf("  region              = %s [%s]\n", cfg.Region, getSource("region"))
-
-	fmt.Println("\n--- Source Legend ---")
-	fmt.Println("  default     = Built-in default value")
-	fmt.Println("  file        = Loaded from config file")
-	fmt.Println("  environment = Set via environment variable")
-	fmt.Println("  cli         = Provided as command-line argument")
-	fmt.Println("\nPriority: cli > environment > file > default")
-	fmt.Println()
-}

config_test.go

@@ -1,157 +0,0 @@
-package main
-
-import (
-	"flag"
-	"os"
-	"path/filepath"
-	"testing"
-)
-
-// resetFlags allows flag.Parse() to be called again in each test, since
-// loadNewtConfig registers flags on the global flag.CommandLine.
-func resetFlags(t *testing.T) {
-	t.Helper()
-	oldArgs := os.Args
-	oldCommandLine := flag.CommandLine
-	t.Cleanup(func() {
-		os.Args = oldArgs
-		flag.CommandLine = oldCommandLine
-	})
-	flag.CommandLine = flag.NewFlagSet(os.Args[0], flag.ExitOnError)
-}
-
-func clearNewtEnv(t *testing.T) {
-	t.Helper()
-	for _, k := range []string{
-		"PANGOLIN_ENDPOINT", "NEWT_ID", "NEWT_SECRET", "DNS", "LOG_LEVEL",
-		"MTU", "CONFIG_FILE", "NEWT_PROVISIONING_KEY", "NEWT_NAME",
-		"DISABLE_SSH", "DISABLE_CLIENTS",
-	} {
-		t.Setenv(k, "")
-	}
-}
-
-func TestLoadNewtConfig_Defaults(t *testing.T) {
-	resetFlags(t)
-	clearNewtEnv(t)
-	os.Args = []string{"newt", "--config-file", filepath.Join(t.TempDir(), "missing.json")}
-
-	cfg := loadNewtConfig()
-
-	if cfg.DNS != "9.9.9.9" {
-		t.Errorf("expected default dns, got %q", cfg.DNS)
-	}
-	if cfg.MTU != 1280 {
-		t.Errorf("expected default mtu 1280, got %d", cfg.MTU)
-	}
-	if cfg.LogLevel != "INFO" {
-		t.Errorf("expected default log level INFO, got %q", cfg.LogLevel)
-	}
-}
-
-func TestLoadNewtConfig_FileOverridesDefault(t *testing.T) {
-	resetFlags(t)
-	clearNewtEnv(t)
-
-	configPath := filepath.Join(t.TempDir(), "config.json")
-	if err := os.WriteFile(configPath, []byte(`{"dns":"1.1.1.1","mtu":1300,"disableSsh":true}`), 0o644); err != nil {
-		t.Fatalf("failed to write config file: %v", err)
-	}
-	os.Args = []string{"newt", "--config-file", configPath}
-
-	cfg := loadNewtConfig()
-
-	if cfg.DNS != "1.1.1.1" {
-		t.Errorf("expected dns from file, got %q", cfg.DNS)
-	}
-	if cfg.MTU != 1300 {
-		t.Errorf("expected mtu from file, got %d", cfg.MTU)
-	}
-	if !cfg.DisableSSH {
-		t.Errorf("expected disableSsh from file to be true")
-	}
-}
-
-func TestLoadNewtConfig_EnvOverridesFile(t *testing.T) {
-	resetFlags(t)
-	clearNewtEnv(t)
-
-	configPath := filepath.Join(t.TempDir(), "config.json")
-	if err := os.WriteFile(configPath, []byte(`{"dns":"1.1.1.1"}`), 0o644); err != nil {
-		t.Fatalf("failed to write config file: %v", err)
-	}
-	t.Setenv("DNS", "8.8.4.4")
-	os.Args = []string{"newt", "--config-file", configPath}
-
-	cfg := loadNewtConfig()
-
-	if cfg.DNS != "8.8.4.4" {
-		t.Errorf("expected env to override file dns, got %q", cfg.DNS)
-	}
-}
-
-func TestLoadNewtConfig_CLIOverridesEnv(t *testing.T) {
-	resetFlags(t)
-	clearNewtEnv(t)
-
-	configPath := filepath.Join(t.TempDir(), "config.json")
-	if err := os.WriteFile(configPath, []byte(`{"dns":"1.1.1.1"}`), 0o644); err != nil {
-		t.Fatalf("failed to write config file: %v", err)
-	}
-	t.Setenv("DNS", "8.8.4.4")
-	os.Args = []string{"newt", "--config-file", configPath, "--dns", "4.2.2.2"}
-
-	cfg := loadNewtConfig()
-
-	if cfg.DNS != "4.2.2.2" {
-		t.Errorf("expected cli to override env dns, got %q", cfg.DNS)
-	}
-}
-
-func TestLoadNewtConfig_TLSClientCAMergesAcrossSources(t *testing.T) {
-	resetFlags(t)
-	clearNewtEnv(t)
-
-	tmpDir := t.TempDir()
-	caFromFile := filepath.Join(tmpDir, "file-ca.pem")
-	caFromEnv := filepath.Join(tmpDir, "env-ca.pem")
-	caFromCLI := filepath.Join(tmpDir, "cli-ca.pem")
-
-	configPath := filepath.Join(tmpDir, "config.json")
-	if err := os.WriteFile(configPath, []byte(`{"tlsClientCa":["`+caFromFile+`"]}`), 0o644); err != nil {
-		t.Fatalf("failed to write config file: %v", err)
-	}
-	t.Setenv("TLS_CLIENT_CAS", caFromEnv)
-	os.Args = []string{"newt", "--config-file", configPath, "--tls-client-ca", caFromCLI}
-
-	cfg := loadNewtConfig()
-
-	want := map[string]bool{caFromFile: true, caFromEnv: true, caFromCLI: true}
-	if len(cfg.TLSClientCAs) != len(want) {
-		t.Fatalf("expected %d CA entries, got %v", len(want), cfg.TLSClientCAs)
-	}
-	for _, ca := range cfg.TLSClientCAs {
-		if !want[ca] {
-			t.Errorf("unexpected CA entry: %s", ca)
-		}
-	}
-}
-
-func TestResolveConfigFilePath_Precedence(t *testing.T) {
-	t.Setenv("CONFIG_FILE", "")
-	t.Setenv("HOME", t.TempDir())
-
-	// CLI flag wins over env.
-	t.Setenv("CONFIG_FILE", "/env/path/config.json")
-	if got := resolveConfigFilePath([]string{"--config-file", "/cli/path/config.json"}); got != "/cli/path/config.json" {
-		t.Errorf("expected cli path to win, got %q", got)
-	}
-	if got := resolveConfigFilePath([]string{"--config-file=/cli/eq/config.json"}); got != "/cli/eq/config.json" {
-		t.Errorf("expected cli = path to win, got %q", got)
-	}
-
-	// Env wins over default when no CLI flag given.
-	if got := resolveConfigFilePath([]string{}); got != "/env/path/config.json" {
-		t.Errorf("expected env path, got %q", got)
-	}
-}

docker/docker.go

@@ -9,9 +9,10 @@ import (
 	"strings"
 	"time"
 
-	"github.com/moby/moby/api/types/container"
-	"github.com/moby/moby/api/types/events"
-	"github.com/moby/moby/client"
+	"github.com/docker/docker/api/types/container"
+	"github.com/docker/docker/api/types/events"
+	"github.com/docker/docker/api/types/filters"
+	"github.com/docker/docker/client"
 	"github.com/fosrl/newt/logger"
 )
 
@@ -169,7 +170,7 @@ func ListContainers(socketPath string, enforceNetworkValidation bool) ([]Contain
 	}
 
 	// Used to filter down containers returned to Pangolin
-	containerFilters := make(client.Filters)
+	containerFilters := filters.NewArgs()
 
 	// Used to determine if we will send IP addresses or hostnames to Pangolin
 	useContainerIpAddresses := true
@@ -214,28 +215,21 @@ func ListContainers(socketPath string, enforceNetworkValidation bool) ([]Contain
 	}
 
 	// List containers
-	containerListResult, err := cli.ContainerList(ctx, client.ContainerListOptions{All: true, Filters: containerFilters})
+	containers, err := cli.ContainerList(ctx, container.ListOptions{All: true, Filters: containerFilters})
 	if err != nil {
 		return nil, fmt.Errorf("failed to list containers: %v", err)
 	}
 
-	addrToString := func(addr interface{ IsValid() bool; String() string }) string {
-		if addr.IsValid() {
-			return addr.String()
-		}
-		return ""
-	}
-
 	var dockerContainers []Container
-	for _, c := range containerListResult.Items {
+	for _, c := range containers {
 		// Short ID like docker ps
 		shortId := c.ID[:12]
 
 		// Inspect container to get hostname
 		hostname := ""
-		containerInfo, err := cli.ContainerInspect(ctx, c.ID, client.ContainerInspectOptions{})
-		if err == nil && containerInfo.Container.Config != nil {
-			hostname = containerInfo.Container.Config.Hostname
+		containerInfo, err := cli.ContainerInspect(ctx, c.ID)
+		if err == nil && containerInfo.Config != nil {
+			hostname = containerInfo.Config.Hostname
 		}
 
 		// Skip host container if set
@@ -259,8 +253,8 @@ func ListContainers(socketPath string, enforceNetworkValidation bool) ([]Contain
 			if port.PublicPort != 0 {
 				dockerPort.PublicPort = int(port.PublicPort)
 			}
-			if port.IP.IsValid() {
-				dockerPort.IP = port.IP.String()
+			if port.IP != "" {
+				dockerPort.IP = port.IP
 			}
 			ports = append(ports, dockerPort)
 		}
@@ -274,19 +268,19 @@ func ListContainers(socketPath string, enforceNetworkValidation bool) ([]Contain
 				dockerNetwork := Network{
 					NetworkID:           endpoint.NetworkID,
 					EndpointID:          endpoint.EndpointID,
-					Gateway:             addrToString(endpoint.Gateway),
+					Gateway:             endpoint.Gateway,
 					IPPrefixLen:         endpoint.IPPrefixLen,
-					IPv6Gateway:         addrToString(endpoint.IPv6Gateway),
-					GlobalIPv6Address:   addrToString(endpoint.GlobalIPv6Address),
+					IPv6Gateway:         endpoint.IPv6Gateway,
+					GlobalIPv6Address:   endpoint.GlobalIPv6Address,
 					GlobalIPv6PrefixLen: endpoint.GlobalIPv6PrefixLen,
-					MacAddress:          endpoint.MacAddress.String(),
+					MacAddress:          endpoint.MacAddress,
 					Aliases:             endpoint.Aliases,
 					DNSNames:            endpoint.DNSNames,
 				}
 
 				// Use IPs over hostnames/containers as we're on the bridge network
 				if useContainerIpAddresses {
-					dockerNetwork.IPAddress = addrToString(endpoint.IPAddress)
+					dockerNetwork.IPAddress = endpoint.IPAddress
 				}
 
 				networks[networkName] = dockerNetwork
@@ -297,7 +291,7 @@ func ListContainers(socketPath string, enforceNetworkValidation bool) ([]Contain
 			ID:       shortId,
 			Name:     name,
 			Image:    c.Image,
-			State:    string(c.State),
+			State:    c.State,
 			Status:   c.Status,
 			Ports:    ports,
 			Labels:   c.Labels,
@@ -321,12 +315,12 @@ func getHostContainer(dockerContext context.Context, dockerClient *client.Client
 	}
 
 	// Get host container from the docker socket
-	hostContainer, err := dockerClient.ContainerInspect(dockerContext, hostContainerName, client.ContainerInspectOptions{})
+	hostContainer, err := dockerClient.ContainerInspect(dockerContext, hostContainerName)
 	if err != nil {
 		return nil, fmt.Errorf("failed to find host container")
 	}
 
-	return &hostContainer.Container, nil
+	return &hostContainer, nil
 }
 
 // EventCallback defines the function signature for handling Docker events
@@ -377,7 +371,7 @@ func (em *EventMonitor) Start() error {
 	logger.Debug("Starting Docker event monitoring")
 
 	// Filter for container events we care about
-	eventFilters := make(client.Filters)
+	eventFilters := filters.NewArgs()
 	eventFilters.Add("type", "container")
 	// eventFilters.Add("event", "create")
 	eventFilters.Add("event", "start")
@@ -388,10 +382,9 @@ func (em *EventMonitor) Start() error {
 	// eventFilters.Add("event", "unpause")
 
 	// Start listening for events
-	eventsResult := em.client.Events(em.ctx, client.EventsListOptions{
+	eventCh, errCh := em.client.Events(em.ctx, events.ListOptions{
 		Filters: eventFilters,
 	})
-	eventCh, errCh := eventsResult.Messages, eventsResult.Err
 
 	go func() {
 		defer func() {
@@ -415,10 +408,9 @@ func (em *EventMonitor) Start() error {
 					time.Sleep(5 * time.Second)
 					if em.ctx.Err() == nil {
 						logger.Info("Attempting to reconnect to Docker event stream")
-						eventsResult = em.client.Events(em.ctx, client.EventsListOptions{
+						eventCh, errCh = em.client.Events(em.ctx, events.ListOptions{
 							Filters: eventFilters,
 						})
-						eventCh, errCh = eventsResult.Messages, eventsResult.Err
 					}
 				}
 				return

flake.nix

@@ -25,7 +25,7 @@
           inherit (pkgs) lib;
 
           # Update version when releasing
-          version = "1.12.5";
+          version = "1.8.0";
         in
         {
           default = self.packages.${system}.pangolin-newt;
@@ -35,7 +35,7 @@
             inherit version;
             src = pkgs.nix-gitignore.gitignoreSource [ ] ./.;
 
-            vendorHash = "sha256-JhNBJhj5YX3Wurv7r/JDu6YtHizOMLk+NCob7ISx+3c=";
+            vendorHash = "sha256-Sib6AUCpMgxlMpTc2Esvs+UU0yduVOxWUgT44FHAI+k=";
 
             nativeInstallCheckInputs = [ pkgs.versionCheckHook ];
 

get-newt.sh

@@ -1,7 +1,7 @@
-#!/bin/sh
+#!/bin/bash
 
 # Get Newt - Cross-platform installation script
-# Usage: curl -fsSL https://raw.githubusercontent.com/fosrl/newt/refs/heads/main/get-newt.sh | sh
+# Usage: curl -fsSL https://raw.githubusercontent.com/fosrl/newt/refs/heads/main/get-newt.sh | bash
 
 set -e
 
@@ -17,51 +17,54 @@ GITHUB_API_URL="https://api.github.com/repos/${REPO}/releases/latest"
 
 # Function to print colored output
 print_status() {
-    printf '%b[INFO]%b %s\n' "${GREEN}" "${NC}" "$1"
+    echo -e "${GREEN}[INFO]${NC} $1"
 }
 
 print_warning() {
-    printf '%b[WARN]%b %s\n' "${YELLOW}" "${NC}" "$1"
+    echo -e "${YELLOW}[WARN]${NC} $1"
 }
 
 print_error() {
-    printf '%b[ERROR]%b %s\n' "${RED}" "${NC}" "$1"
+    echo -e "${RED}[ERROR]${NC} $1"
 }
 
 # Function to get latest version from GitHub API
 get_latest_version() {
-    latest_info=""
-
+    local latest_info
+    
     if command -v curl >/dev/null 2>&1; then
         latest_info=$(curl -fsSL "$GITHUB_API_URL" 2>/dev/null)
     elif command -v wget >/dev/null 2>&1; then
         latest_info=$(wget -qO- "$GITHUB_API_URL" 2>/dev/null)
     else
-        print_error "Neither curl nor wget is available."
+        print_error "Neither curl nor wget is available. Please install one of them." >&2
         exit 1
     fi
-
+    
     if [ -z "$latest_info" ]; then
-        print_error "Failed to fetch latest version info"
+        print_error "Failed to fetch latest version information" >&2
         exit 1
     fi
-
-    version=$(printf '%s' "$latest_info" | grep '"tag_name"' | head -1 | sed 's/.*"tag_name": *"\([^"]*\)".*/\1/')
-
+    
+    # Extract version from JSON response (works without jq)
+    local version=$(echo "$latest_info" | grep '"tag_name"' | head -1 | sed 's/.*"tag_name": *"\([^"]*\)".*/\1/')
+    
     if [ -z "$version" ]; then
-        print_error "Could not parse version from GitHub API response"
+        print_error "Could not parse version from GitHub API response" >&2
         exit 1
     fi
-
-    version=$(printf '%s' "$version" | sed 's/^v//')
-    printf '%s' "$version"
+    
+    # Remove 'v' prefix if present
+    version=$(echo "$version" | sed 's/^v//')
+    
+    echo "$version"
 }
 
 # Detect OS and architecture
 detect_platform() {
-    os=""
-    arch=""
-
+    local os arch
+    
+    # Detect OS
     case "$(uname -s)" in
         Linux*)     os="linux" ;;
         Darwin*)    os="darwin" ;;
@@ -72,11 +75,12 @@ detect_platform() {
             exit 1
             ;;
     esac
-
+    
+    # Detect architecture
     case "$(uname -m)" in
         x86_64|amd64)   arch="amd64" ;;
         arm64|aarch64)  arch="arm64" ;;
-        armv7l|armv6l)
+        armv7l|armv6l)  
             if [ "$os" = "linux" ]; then
                 if [ "$(uname -m)" = "armv6l" ]; then
                     arch="arm32v6"
@@ -84,10 +88,10 @@ detect_platform() {
                     arch="arm32"
                 fi
             else
-                arch="arm64"
+                arch="arm64"  # Default for non-Linux ARM
             fi
             ;;
-        riscv64)
+        riscv64)        
             if [ "$os" = "linux" ]; then
                 arch="riscv64"
             else
@@ -100,166 +104,90 @@ detect_platform() {
             exit 1
             ;;
     esac
-
-    printf '%s_%s' "$os" "$arch"
+    
+    echo "${os}_${arch}"
 }
 
-# Determine installation directory (default fallback)
+# Get installation directory
 get_install_dir() {
-    case "$PLATFORM" in
-        *windows*)
-            echo "$HOME/bin"
-            ;;
-        *)
-            echo "/usr/local/bin"
-            ;;
-    esac
-}
-
-# Parse --path argument from args
-# Returns the value after --path, or empty string if not provided
-parse_path_arg() {
-    while [ $# -gt 0 ]; do
-        case "$1" in
-            --path)
-                if [ -n "$2" ]; then
-                    printf '%s' "$2"
-                    return
-                fi
-                ;;
-            --path=*)
-                printf '%s' "${1#--path=}"
-                return
-                ;;
-        esac
-        shift
-    done
-}
-
-# Detect an existing newt binary location.
-# Tries unprivileged which first, then sudo which (for binaries only visible to root).
-# Returns the full path of the binary, or empty string if not found.
-detect_existing_binary() {
-    existing=""
-
-    # Try unprivileged which first
-    existing=$(command -v newt 2>/dev/null || true)
-    if [ -n "$existing" ]; then
-        printf '%s' "$existing"
-        return
-    fi
-
-    # Try sudo which — some installations land in paths only root can see in $PATH
-    if command -v sudo >/dev/null 2>&1; then
-        existing=$(sudo which newt 2>/dev/null || true)
-        if [ -n "$existing" ]; then
-            printf '%s' "$existing"
-            return
-        fi
-    fi
-}
-
-# Check if we need sudo for installation
-needs_sudo() {
-    install_dir="$1"
-    if [ -w "$install_dir" ] 2>/dev/null; then
-        return 1  # No sudo needed
+    if [ "$OS" = "windows" ]; then
+        echo "$HOME/bin"
     else
-        return 0  # Sudo needed
-    fi
-}
-
-# Get the appropriate command prefix (sudo or empty)
-get_sudo_cmd() {
-    install_dir="$1"
-    if needs_sudo "$install_dir"; then
-        if command -v sudo >/dev/null 2>&1; then
-            echo "sudo"
+        # Try to use a directory in PATH, fallback to ~/.local/bin
+        if echo "$PATH" | grep -q "/usr/local/bin"; then
+            if [ -w "/usr/local/bin" ] 2>/dev/null; then
+                echo "/usr/local/bin"
+            else
+                echo "$HOME/.local/bin"
+            fi
         else
-            print_error "Cannot write to ${install_dir} and sudo is not available."
-            print_error "Please run this script as root or install sudo."
-            exit 1
+            echo "$HOME/.local/bin"
         fi
-    else
-        echo ""
     fi
 }
 
 # Download and install newt
 install_newt() {
-    platform="$1"
-    install_dir="$2"
-    sudo_cmd="$3"
-    custom_path="$4"
-    binary_name="newt_${platform}"
-    final_name="newt"
-
-    case "$platform" in
-        *windows*)
-            binary_name="${binary_name}.exe"
-            final_name="newt.exe"
-            ;;
-    esac
-
-    download_url="${BASE_URL}/${binary_name}"
-    temp_file="/tmp/${final_name}"
-
-    # If a custom path is provided, use it directly; otherwise use install_dir/final_name
-    if [ -n "$custom_path" ]; then
-        final_path="$custom_path"
-        install_dir=$(dirname "$final_path")
-    else
-        final_path="${install_dir}/${final_name}"
+    local platform="$1"
+    local install_dir="$2"
+    local binary_name="newt_${platform}"
+    local exe_suffix=""
+    
+    # Add .exe suffix for Windows
+    if [[ "$platform" == *"windows"* ]]; then
+        binary_name="${binary_name}.exe"
+        exe_suffix=".exe"
     fi
-
+    
+    local download_url="${BASE_URL}/${binary_name}"
+    local temp_file="/tmp/newt${exe_suffix}"
+    local final_path="${install_dir}/newt${exe_suffix}"
+    
     print_status "Downloading newt from ${download_url}"
-
+    
+    # Download the binary
     if command -v curl >/dev/null 2>&1; then
         curl -fsSL "$download_url" -o "$temp_file"
     elif command -v wget >/dev/null 2>&1; then
         wget -q "$download_url" -O "$temp_file"
     else
-        print_error "Neither curl nor wget is available."
+        print_error "Neither curl nor wget is available. Please install one of them."
         exit 1
     fi
-
-    # Make executable before moving
-    chmod +x "$temp_file"
-
-    # Create install directory if it doesn't exist and move binary
-    if [ -n "$sudo_cmd" ]; then
-        $sudo_cmd mkdir -p "$install_dir"
-        print_status "Using sudo to install to ${install_dir}"
-        $sudo_cmd mv "$temp_file" "$final_path"
-    else
-        mkdir -p "$install_dir"
-        mv "$temp_file" "$final_path"
-    fi
-
+    
+    # Create install directory if it doesn't exist
+    mkdir -p "$install_dir"
+    
+    # Move binary to install directory
+    mv "$temp_file" "$final_path"
+    
+    # Make executable (not needed on Windows, but doesn't hurt)
+    chmod +x "$final_path"
+    
     print_status "newt installed to ${final_path}"
-
+    
     # Check if install directory is in PATH
     if ! echo "$PATH" | grep -q "$install_dir"; then
         print_warning "Install directory ${install_dir} is not in your PATH."
-        print_warning "Add it with:"
+        print_warning "Add it to your PATH by adding this line to your shell profile:"
         print_warning "  export PATH=\"${install_dir}:\$PATH\""
     fi
 }
 
 # Verify installation
 verify_installation() {
-    install_dir="$1"
-    exe_suffix=""
-
-    case "$PLATFORM" in
-        *windows*) exe_suffix=".exe" ;;
-    esac
-
-    newt_path="${install_dir}/newt${exe_suffix}"
-
-    if [ -x "$newt_path" ]; then
+    local install_dir="$1"
+    local exe_suffix=""
+    
+    if [[ "$PLATFORM" == *"windows"* ]]; then
+        exe_suffix=".exe"
+    fi
+    
+    local newt_path="${install_dir}/newt${exe_suffix}"
+    
+    if [ -f "$newt_path" ] && [ -x "$newt_path" ]; then
         print_status "Installation successful!"
-        print_status "newt version: $("$newt_path" --version 2>/dev/null || printf 'unknown')"
+        print_status "newt version: $("$newt_path" --version 2>/dev/null || echo "unknown")"
         return 0
     else
         print_error "Installation failed. Binary not found or not executable."
@@ -269,66 +197,39 @@ verify_installation() {
 
 # Main installation process
 main() {
-    # --path explicitly overrides everything
-    CUSTOM_PATH=$(parse_path_arg "$@")
-
-    if [ -n "$CUSTOM_PATH" ]; then
-        print_status "Installing latest version of newt to ${CUSTOM_PATH}..."
-    else
-        print_status "Installing latest version of newt..."
-    fi
-
-    print_status "Fetching latest version..."
+    print_status "Installing latest version of newt..."
+    
+    # Get latest version
+    print_status "Fetching latest version from GitHub..."
     VERSION=$(get_latest_version)
     print_status "Latest version: v${VERSION}"
-
+    
+    # Set base URL with the fetched version
     BASE_URL="https://github.com/${REPO}/releases/download/${VERSION}"
-
+    
+    # Detect platform
     PLATFORM=$(detect_platform)
     print_status "Detected platform: ${PLATFORM}"
-
-    if [ -n "$CUSTOM_PATH" ]; then
-        # --path wins; derive INSTALL_DIR from it
-        INSTALL_DIR=$(dirname "$CUSTOM_PATH")
-    else
-        # Try to find an existing installation so we update the right place
-        EXISTING_BINARY=$(detect_existing_binary)
-        if [ -n "$EXISTING_BINARY" ]; then
-            print_status "Found existing newt binary at ${EXISTING_BINARY}"
-            CUSTOM_PATH="$EXISTING_BINARY"
-            INSTALL_DIR=$(dirname "$EXISTING_BINARY")
-            print_status "Will update existing installation at ${INSTALL_DIR}"
-        else
-            INSTALL_DIR=$(get_install_dir)
-        fi
-    fi
-
+    
+    # Get install directory
+    INSTALL_DIR=$(get_install_dir)
     print_status "Install directory: ${INSTALL_DIR}"
-
-    # Check if we need sudo
-    SUDO_CMD=$(get_sudo_cmd "$INSTALL_DIR")
-    if [ -n "$SUDO_CMD" ]; then
-        print_status "Root privileges required for installation to ${INSTALL_DIR}"
-    fi
-
-    install_newt "$PLATFORM" "$INSTALL_DIR" "$SUDO_CMD" "$CUSTOM_PATH"
-
-    if [ -n "$CUSTOM_PATH" ]; then
-        if [ -x "$CUSTOM_PATH" ]; then
-            print_status "Installation successful!"
-            print_status "newt version: $("$CUSTOM_PATH" --version 2>/dev/null || printf 'unknown')"
-            print_status "newt is ready to use!"
-        else
-            print_error "Installation failed. Binary not found or not executable at ${CUSTOM_PATH}."
-            exit 1
-        fi
-    elif verify_installation "$INSTALL_DIR"; then
+    
+    # Install newt
+    install_newt "$PLATFORM" "$INSTALL_DIR"
+    
+    # Verify installation
+    if verify_installation "$INSTALL_DIR"; then
         print_status "newt is ready to use!"
-        print_status "Run 'newt --help' to get started."
+        if [[ "$PLATFORM" == *"windows"* ]]; then
+            print_status "Run 'newt --help' to get started"
+        else
+            print_status "Run 'newt --help' to get started"
+        fi
     else
         exit 1
     fi
 }
 
 # Run main function
-main "$@"
+main "$@"

go.mod

@@ -1,75 +1,76 @@
 module github.com/fosrl/newt
 
-go 1.25.0
+go 1.25
 
 require (
-	github.com/coder/websocket v1.8.15
-	github.com/creack/pty v1.1.24
-	github.com/fsnotify/fsnotify v1.9.0
-	github.com/gaissmai/bart v0.28.0
-	github.com/go-crypt/crypt v0.14.15
-	github.com/go-crypt/x v0.4.16
+	github.com/docker/docker v28.5.2+incompatible
 	github.com/gorilla/websocket v1.5.3
-	github.com/moby/moby/api v1.55.0
-	github.com/moby/moby/client v0.5.0
 	github.com/prometheus/client_golang v1.23.2
 	github.com/vishvananda/netlink v1.3.1
-	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.69.0
-	go.opentelemetry.io/contrib/instrumentation/runtime v0.69.0
-	go.opentelemetry.io/otel v1.44.0
-	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.44.0
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.44.0
-	go.opentelemetry.io/otel/exporters/prometheus v0.66.0
-	go.opentelemetry.io/otel/metric v1.44.0
-	go.opentelemetry.io/otel/sdk v1.44.0
-	go.opentelemetry.io/otel/sdk/metric v1.44.0
-	golang.org/x/crypto v0.53.0
+	go.opentelemetry.io/contrib/instrumentation/net/http/otelhttp v0.64.0
+	go.opentelemetry.io/contrib/instrumentation/runtime v0.64.0
+	go.opentelemetry.io/otel v1.39.0
+	go.opentelemetry.io/otel/exporters/otlp/otlpmetric/otlpmetricgrpc v1.39.0
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracegrpc v1.39.0
+	go.opentelemetry.io/otel/exporters/prometheus v0.61.0
+	go.opentelemetry.io/otel/metric v1.39.0
+	go.opentelemetry.io/otel/sdk v1.39.0
+	go.opentelemetry.io/otel/sdk/metric v1.39.0
+	golang.org/x/crypto v0.46.0
 	golang.org/x/exp v0.0.0-20251113190631-e25ba8c21ef6
-	golang.org/x/net v0.56.0
-	golang.org/x/sys v0.46.0
+	golang.org/x/net v0.48.0
+	golang.org/x/sys v0.39.0
 	golang.zx2c4.com/wireguard v0.0.0-20250521234502-f333402bd9cb
 	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20241231184526-a9ab2273dd10
-	golang.zx2c4.com/wireguard/windows v1.0.1
-	google.golang.org/grpc v1.82.0
+	golang.zx2c4.com/wireguard/windows v0.5.3
+	google.golang.org/grpc v1.77.0
 	gopkg.in/yaml.v3 v3.0.1
 	gvisor.dev/gvisor v0.0.0-20250503011706-39ed1f5ac29c
-	software.sslmate.com/src/go-pkcs12 v0.7.3
+	software.sslmate.com/src/go-pkcs12 v0.7.0
 )
 
 require (
-	github.com/Microsoft/go-winio v0.6.2 // indirect
+	github.com/Microsoft/go-winio v0.6.0 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cenkalti/backoff/v5 v5.0.3 // indirect
 	github.com/cespare/xxhash/v2 v2.3.0 // indirect
-	github.com/containerd/errdefs v1.0.0 // indirect
+	github.com/containerd/errdefs v0.3.0 // indirect
 	github.com/containerd/errdefs/pkg v0.3.0 // indirect
 	github.com/distribution/reference v0.6.0 // indirect
-	github.com/docker/go-connections v0.7.0 // indirect
-	github.com/docker/go-units v0.5.0 // indirect
+	github.com/docker/go-connections v0.6.0 // indirect
+	github.com/docker/go-units v0.4.0 // indirect
 	github.com/felixge/httpsnoop v1.0.4 // indirect
 	github.com/go-logr/logr v1.4.3 // indirect
 	github.com/go-logr/stdr v1.2.2 // indirect
 	github.com/google/btree v1.1.3 // indirect
 	github.com/google/uuid v1.6.0 // indirect
-	github.com/grpc-ecosystem/grpc-gateway/v2 v2.29.0 // indirect
+	github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3 // indirect
 	github.com/moby/docker-image-spec v1.3.1 // indirect
+	github.com/moby/sys/atomicwriter v0.1.0 // indirect
+	github.com/moby/term v0.5.2 // indirect
+	github.com/morikuni/aec v1.0.0 // indirect
 	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
 	github.com/opencontainers/go-digest v1.0.0 // indirect
-	github.com/opencontainers/image-spec v1.1.1 // indirect
+	github.com/opencontainers/image-spec v1.1.0 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
 	github.com/prometheus/client_model v0.6.2 // indirect
-	github.com/prometheus/common v0.67.5 // indirect
+	github.com/prometheus/common v0.67.4 // indirect
 	github.com/prometheus/otlptranslator v1.0.0 // indirect
-	github.com/prometheus/procfs v0.20.1 // indirect
+	github.com/prometheus/procfs v0.19.2 // indirect
 	github.com/vishvananda/netns v0.0.5 // indirect
 	go.opentelemetry.io/auto/sdk v1.2.1 // indirect
-	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.44.0 // indirect
-	go.opentelemetry.io/otel/trace v1.44.0 // indirect
-	go.opentelemetry.io/proto/otlp v1.10.0 // indirect
-	go.yaml.in/yaml/v2 v2.4.4 // indirect
-	golang.org/x/text v0.38.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace v1.39.0 // indirect
+	go.opentelemetry.io/otel/exporters/otlp/otlptrace/otlptracehttp v1.38.0 // indirect
+	go.opentelemetry.io/otel/trace v1.39.0 // indirect
+	go.opentelemetry.io/proto/otlp v1.9.0 // indirect
+	go.yaml.in/yaml/v2 v2.4.3 // indirect
+	golang.org/x/mod v0.30.0 // indirect
+	golang.org/x/sync v0.19.0 // indirect
+	golang.org/x/text v0.32.0 // indirect
 	golang.org/x/time v0.12.0 // indirect
+	golang.org/x/tools v0.39.0 // indirect
 	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
-	google.golang.org/genproto/googleapis/api v0.0.0-20260526163538-3dc84a4a5aaa // indirect
-	google.golang.org/genproto/googleapis/rpc v0.0.0-20260526163538-3dc84a4a5aaa // indirect
-	google.golang.org/protobuf v1.36.11 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20251202230838-ff82c1b0f217 // indirect
+	google.golang.org/protobuf v1.36.10 // indirect
 )

go.sum

@@ -1,37 +1,31 @@
-github.com/Microsoft/go-winio v0.6.2 h1:F2VQgta7ecxGYO8k3ZZz3RS8fVIXVxONVUPlNERoyfY=
-github.com/Microsoft/go-winio v0.6.2/go.mod h1:yd8OoFMLzJbo9gZq8j5qaps8bJ9aShtEA8Ipt1oGCvU=
+github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c h1:udKWzYgxTojEKWjV8V+WSxDXJ4NFATAsZjh8iIbsQIg=
+github.com/Azure/go-ansiterm v0.0.0-20250102033503-faa5f7b0171c/go.mod h1:xomTg63KZ2rFqZQzSB4Vz2SUXa1BpHTVz9L5PTmPC4E=
+github.com/Microsoft/go-winio v0.6.0 h1:slsWYD/zyx7lCXoZVlvQrj0hPTM1HI4+v1sIda2yDvg=
+github.com/Microsoft/go-winio v0.6.0/go.mod h1:cTAf44im0RAYeL23bpB+fzCyDH2MJiz2BO69KH/soAE=
 github.com/beorn7/perks v1.0.1 h1:VlbKKnNfV8bJzeqoa4cOKqO6bYr3WgKZxO8Z16+hsOM=
 github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6rlkpw=
 github.com/cenkalti/backoff/v5 v5.0.3 h1:ZN+IMa753KfX5hd8vVaMixjnqRZ3y8CuJKRKj1xcsSM=
 github.com/cenkalti/backoff/v5 v5.0.3/go.mod h1:rkhZdG3JZukswDf7f0cwqPNk4K0sa+F97BxZthm/crw=
 github.com/cespare/xxhash/v2 v2.3.0 h1:UL815xU9SqsFlibzuggzjXhog7bL6oX9BbNZnL2UFvs=
 github.com/cespare/xxhash/v2 v2.3.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/coder/websocket v1.8.15 h1:6B2JPeOGlpff2Uz6vOEH1Vzpi0iUz20A+lPVhPHtNUA=
-github.com/coder/websocket v1.8.15/go.mod h1:NX3SzP+inril6yawo5CQXx8+fk145lPDC6pumgx0mVg=
-github.com/containerd/errdefs v1.0.0 h1:tg5yIfIlQIrxYtu9ajqY42W3lpS19XqdxRQeEwYG8PI=
-github.com/containerd/errdefs v1.0.0/go.mod h1:+YBYIdtsnF4Iw6nWZhJcqGSg/dwvV7tyJ/kCkyJ2k+M=
+github.com/containerd/errdefs v0.3.0 h1:FSZgGOeK4yuT/+DnF07/Olde/q4KBoMsaamhXxIMDp4=
+github.com/containerd/errdefs v0.3.0/go.mod h1:+YBYIdtsnF4Iw6nWZhJcqGSg/dwvV7tyJ/kCkyJ2k+M=
 github.com/containerd/errdefs/pkg v0.3.0 h1:9IKJ06FvyNlexW690DXuQNx2KA2cUJXx151Xdx3ZPPE=
 github.com/containerd/errdefs/pkg v0.3.0/go.mod h1:NJw6s9HwNuRhnjJhM7pylWwMyAkmCQvQ4GpJHEqRLVk=
-github.com/creack/pty v1.1.24 h1:bJrF4RRfyJnbTJqzRLHzcGaZK1NeM5kTC9jGgovnR1s=
-github.com/creack/pty v1.1.24/go.mod h1:08sCNb52WyoAwi2QDyzUCTgcvVFhUzewun7wtTfvcwE=
+github.com/containerd/log v0.1.0 h1:TCJt7ioM2cr/tfR8GPbGf9/VRAX8D2B4PjzCpfX540I=
+github.com/containerd/log v0.1.0/go.mod h1:VRRf09a7mHDIRezVKTRCrOq78v577GXq3bSa3EhrzVo=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/distribution/reference v0.6.0 h1:0IXCQ5g4/QMHHkarYzh5l+u8T3t73zM5QvfrDyIgxBk=
 github.com/distribution/reference v0.6.0/go.mod h1:BbU0aIcezP1/5jX/8MP0YiH4SdvB5Y4f/wlDRiLyi3E=
-github.com/docker/go-connections v0.7.0 h1:6SsRfJddP22WMrCkj19x9WKjEDTB+ahsdiGYf0mN39c=
-github.com/docker/go-connections v0.7.0/go.mod h1:no1qkHdjq7kLMGUXYAduOhYPSJxxvgWBh7ogVvptn3Q=
-github.com/docker/go-units v0.5.0 h1:69rxXcBk27SvSaaxTtLh/8llcHD8vYHT7WSdRZ/jvr4=
-github.com/docker/go-units v0.5.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
+github.com/docker/docker v28.5.2+incompatible h1:DBX0Y0zAjZbSrm1uzOkdr1onVghKaftjlSWt4AFexzM=
+github.com/docker/docker v28.5.2+incompatible/go.mod h1:eEKB0N0r5NX/I1kEveEz05bcu8tLC/8azJZsviup8Sk=
+github.com/docker/go-connections v0.6.0 h1:LlMG9azAe1TqfR7sO+NJttz1gy6KO7VJBh+pMmjSD94=
+github.com/docker/go-connections v0.6.0/go.mod h1:AahvXYshr6JgfUJGdDCs2b5EZG/vmaMAntpSFH5BFKE=
+github.com/docker/go-units v0.4.0 h1:3uh0PgVws3nIA0Q+MwDC8yjEPf9zjRfZZWXZYDct3Tw=
+github.com/docker/go-units v0.4.0/go.mod h1:fgPhTUdO+D/Jk86RDLlptpiXQzgHJF7gydDDbaIK4Dk=
 github.com/felixge/httpsnoop v1.0.4 h1:NFTV2Zj1bL4mc9sqWACXbQFVBBg2W3GPvqp8/ESS2Wg=
 github.com/felixge/httpsnoop v1.0.4/go.mod h1:m8KPJKqk1gH5J9DgRY2ASl2lWCfGKXixSwevea8zH2U=
-github.com/fsnotify/fsnotify v1.9.0 h1:2Ml+OJNzbYCTzsxtv8vKSFD9PbJjmhYF14k/jKC7S9k=
-github.com/fsnotify/fsnotify v1.9.0/go.mod h1:8jBTzvmWwFyi3Pb8djgCCO5IBqzKJ/Jwo8TRcHyHii0=
-github.com/gaissmai/bart v0.28.0 h1:89yZLo8NmyqD0RYgJ3QO9HhqqGGw+oWhf90cZm69Lko=
-github.com/gaissmai/bart v0.28.0/go.mod h1:GREWQfTLRWz/c5FTOsIw+KkscuFkIV5t8Rp7Nd1Td5c=
-github.com/go-crypt/crypt v0.14.15 h1:q1i5OMpL05r935IxWmXgpDAVF0nvi4SMoHhGXLBQUEQ=
-github.com/go-crypt/crypt v0.14.15/go.mod h1:0n/to1VqIZPENj2yEUa/sLLYYnmupma6cp+QMX4zfF0=
-github.com/go-crypt/x v0.4.16 h1:WXdY28H/0MsXnH+gwerxuCcvBTJPkBG90u6oS4gIPZI=
-github.com/go-crypt/x v0.4.16/go.mod h1:vmVFA/d/oLrEaCbqsLcjBMlTqF8u8pvH/c4+EJ/ped8=
 github.com/go-logr/logr v1.2.2/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
 github.com/go-logr/logr v1.4.3 h1:CjnDlHq8ikf6E492q6eKboGOC0T8CDaOvkHCIg8idEI=
 github.com/go-logr/logr v1.4.3/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
@@ -47,8 +41,8 @@ github.com/google/uuid v1.6.0 h1:NIvaJDMOsjHA8n1jAhLSgzrAzy1Hgr+hNrb57e+94F0=
 github.com/google/uuid v1.6.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gorilla/websocket v1.5.3 h1:saDtZ6Pbx/0u+bgYQ3q96pZgCzfhKXGPqt7kZ72aNNg=
 github.com/gorilla/websocket v1.5.3/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.29.0 h1:5VipnvEpbqr2gA2VbM+nYVbkIF28c5ZQfqCBQ5g2xfk=
-github.com/grpc-ecosystem/grpc-gateway/v2 v2.29.0/go.mod h1:Hyl3n6Twe1hvtd9XUXDec4pTvgMSEixRuQKPTMH2bNs=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3 h1:NmZ1PKzSTQbuGHw9DGPFomqkkLWMC+vZCkfs+FHv1Vg=
+github.com/grpc-ecosystem/grpc-gateway/v2 v2.27.3/go.mod h1:zQrxl1YP88HQlA6i9c63DSVPFklWpGX4OWAc9bFuaH4=
 github.com/klauspost/compress v1.18.0 h1:c/Cqfb0r+Yi+JtIEq73FWXVkRonBlf0CRNYc8Zttxdo=
 github.com/klauspost/compress v1.18.0/go.mod h1:2Pp+KzxcywXVXMr50+X0Q/Lsb43OQHYWRCY2AiWywWQ=
 github.com/kr/pretty v0.3.1 h1:flRD4NNwYAUpkphVc1HcthR4KEIFJ65n8Mw5qdRn3LE=
@@ -59,30 +53,38 @@ github.com/kylelemons/godebug v1.1.0 h1:RPNrshWIDI6G2gRW9EHilWtl7Z6Sb1BR0xunSBf0
 github.com/kylelemons/godebug v1.1.0/go.mod h1:9/0rRGxNHcop5bhtWyNeEfOS8JIWk580+fNqagV/RAw=
 github.com/moby/docker-image-spec v1.3.1 h1:jMKff3w6PgbfSa69GfNg+zN/XLhfXJGnEx3Nl2EsFP0=
 github.com/moby/docker-image-spec v1.3.1/go.mod h1:eKmb5VW8vQEh/BAr2yvVNvuiJuY6UIocYsFu/DxxRpo=
-github.com/moby/moby/api v1.55.0 h1:2/sexvQyqIWS8pRSCFddBfpW2qE7vR7FCL+vN8pxwMc=
-github.com/moby/moby/api v1.55.0/go.mod h1:+RQ6wluLwtYaTd1WnPLykIDPekkuyD/ROWQClE83pzs=
-github.com/moby/moby/client v0.5.0 h1:5XhyPk2fuOWf6RlSFa3MkIIgDZkF25xToXW8Q/BH7cc=
-github.com/moby/moby/client v0.5.0/go.mod h1:rcVpF8ncl9vo5gaIBdol6CnbEtSj1uxMvEV/UrykF/s=
+github.com/moby/sys/atomicwriter v0.1.0 h1:kw5D/EqkBwsBFi0ss9v1VG3wIkVhzGvLklJ+w3A14Sw=
+github.com/moby/sys/atomicwriter v0.1.0/go.mod h1:Ul8oqv2ZMNHOceF643P6FKPXeCmYtlQMvpizfsSoaWs=
+github.com/moby/sys/sequential v0.6.0 h1:qrx7XFUd/5DxtqcoH1h438hF5TmOvzC/lspjy7zgvCU=
+github.com/moby/sys/sequential v0.6.0/go.mod h1:uyv8EUTrca5PnDsdMGXhZe6CCe8U/UiTWd+lL+7b/Ko=
+github.com/moby/term v0.5.2 h1:6qk3FJAFDs6i/q3W/pQ97SX192qKfZgGjCQqfCJkgzQ=
+github.com/moby/term v0.5.2/go.mod h1:d3djjFCrjnB+fl8NJux+EJzu0msscUP+f8it8hPkFLc=
+github.com/morikuni/aec v1.0.0 h1:nP9CBfwrvYnBRgY6qfDQkygYDmYwOilePFkwzv4dU8A=
+github.com/morikuni/aec v1.0.0/go.mod h1:BbKIizmSmc5MMPqRYbxO4ZU0S0+P200+tUnFx7PXmsc=
 github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 h1:C3w9PqII01/Oq1c1nUAm88MOHcQC9l5mIlSMApZMrHA=
 github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822/go.mod h1:+n7T8mK8HuQTcFwEeznm/DIxMOiR9yIdICNftLE1DvQ=
 github.com/opencontainers/go-digest v1.0.0 h1:apOUWs51W5PlhuyGyz9FCeeBIOUDA/6nW8Oi/yOhh5U=
 github.com/opencontainers/go-digest v1.0.0/go.mod h1:0JzlMkj0TRzQZfJkVvzbP0HBR3IKzErnv2BNG4W4MAM=
-github.com/opencontainers/image-spec v1.1.1 h1:y0fUlFfIZhPF1W537XOLg0/fcx6zcHCJwooC2xJA040=
-github.com/opencontainers/image-spec v1.1.1/go.mod h1:qpqAh3Dmcf36wStyyWU+kCeDgrGnAve2nCC8+7h8Q0M=
+github.com/opencontainers/image-spec v1.1.0 h1:8SG7/vwALn54lVB/0yZ/MMwhFrPYtpEHQb2IpWsCzug=
+github.com/opencontainers/image-spec v1.1.0/go.mod h1:W4s4sFTMaBeK1BQLXbG4AdM2szdn85PY75RI83NrTrM=
+github.com/pkg/errors v0.9.1 h1:FEBLx1zS214owpjy7qsBeixbURkuhQAwrK5UwLGTwt4=
+github.com/pkg/errors v0.9.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
 github.com/prometheus/client_golang v1.23.2 h1:Je96obch5RDVy3FDMndoUsjAhG5Edi49h0RJWRi/o0o=
 github.com/prometheus/client_golang v1.23.2/go.mod h1:Tb1a6LWHB3/SPIzCoaDXI4I8UHKeFTEQ1YCr+0Gyqmg=
 github.com/prometheus/client_model v0.6.2 h1:oBsgwpGs7iVziMvrGhE53c/GrLUsZdHnqNwqPLxwZyk=
 github.com/prometheus/client_model v0.6.2/go.mod h1:y3m2F6Gdpfy6Ut/GBsUqTWZqCUvMVzSfMLjcu6wAwpE=
-github.com/prometheus/common v0.67.5 h1:pIgK94WWlQt1WLwAC5j2ynLaBRDiinoAb86HZHTUGI4=
-github.com/prometheus/common v0.67.5/go.mod h1:SjE/0MzDEEAyrdr5Gqc6G+sXI67maCxzaT3A2+HqjUw=
+github.com/prometheus/common v0.67.4 h1:yR3NqWO1/UyO1w2PhUvXlGQs/PtFmoveVO0KZ4+Lvsc=
+github.com/prometheus/common v0.67.4/go.mod h1:gP0fq6YjjNCLssJCQp0yk4M8W6ikLURwkdd/YKtTbyI=
 github.com/prometheus/otlptranslator v1.0.0 h1:s0LJW/iN9dkIH+EnhiD3BlkkP5QVIUVEoIwkU+A6qos=
 github.com/prometheus/otlptranslator v1.0.0/go.mod h1:vRYWnXvI6aWGpsdY/mOT/cbeVRBlPWtBNDb7kGR3uKM=
-github.com/prometheus/procfs v0.20.1 h1:XwbrGOIplXW/AU3YhIhLODXMJYyC1isLFfYCsTEycfc=
-github.com/prometheus/procfs v0.20.1/go.mod h1:o9EMBZGRyvDrSPH1RqdxhojkuXstoe4UlK79eF5TGGo=
+github.com/prometheus/procfs v0.19.2 h1:zUMhqEW66Ex7OXIiDkll3tl9a1ZdilUOd/F6ZXw4Vws=
+github.com/prometheus/procfs v0.19.2/go.mod h1:M0aotyiemPhBCM0z5w87kL22CxfcH05ZpYlu+b4J7mw=
 github.com/rogpeppe/go-internal v1.14.1 h1:UQB4HGPB6osV0SQTLymcB4TgvyWu6ZyliaW0tI/otEQ=
 github.com/rogpeppe/go-internal v1.14.1/go.mod h1:MaRKkUm5W0goXpeCfT7UZI6fk/L7L7so1lCWt35ZSgc=
+github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
+github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/stretchr/testify v1.11.1 h1:7s2iGBzp5EwR7/aIZr8ao5+dra3wiQyKjjFuvgVKu7U=
 github.com/stretchr/testify v1.11.1/go.mod h1:wZwfW3scLgRK+23gO65QZefKpKQRnfz6sD981Nm4B6U=
 github.com/vishvananda/netlink v1.3.1 h1:3AEMt62VKqz90r0tmNhog0r/PpWKmrEShJU0wJW6bV0=
@@ -91,80 +93,82 @@ github.com/vishvananda/netns v0.0.5 h1:DfiHV+j8bA32MFM7bfEunvT8IAqQ/NzSJHtcmW5zd
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-gotest.tools/v3 v3.5.2/go.mod h1:LtdLGcnqToBH83WByAAi/wiwSFCArdFIUV/xxN4pcjA=
+gotest.tools/v3 v3.4.0 h1:ZazjZUfuVeZGLAmlKKuyv3IKP5orXcwtOwDQH6YVr6o=
+gotest.tools/v3 v3.4.0/go.mod h1:CtbdzLSsqVhDgMtKsx03ird5YTGB3ar27v0u/yKBW5g=
 gvisor.dev/gvisor v0.0.0-20250503011706-39ed1f5ac29c h1:m/r7OM+Y2Ty1sgBQ7Qb27VgIMBW8ZZhT4gLnUyDIhzI=
 gvisor.dev/gvisor v0.0.0-20250503011706-39ed1f5ac29c/go.mod h1:3r5CMtNQMKIvBlrmM9xWUNamjKBYPOWyXOjmg5Kts3g=
-pgregory.net/rapid v1.2.0 h1:keKAYRcjm+e1F0oAuU5F5+YPAWcyxNNRK2wud503Gnk=
-pgregory.net/rapid v1.2.0/go.mod h1:PY5XlDGj0+V1FCq0o192FdRhpKHGTRIWBgqjDBTrq04=
-software.sslmate.com/src/go-pkcs12 v0.7.3 h1:JBQD3FDqYjTeyDAeZQklj2ar88ykBLtALloPJHyAauU=
-software.sslmate.com/src/go-pkcs12 v0.7.3/go.mod h1:Qiz0EyvDRJjjxGyUQa2cCNZn/wMyzrRJ/qcDXOQazLI=
+software.sslmate.com/src/go-pkcs12 v0.7.0 h1:Db8W44cB54TWD7stUFFSWxdfpdn6fZVcDl0w3R4RVM0=
+software.sslmate.com/src/go-pkcs12 v0.7.0/go.mod h1:Qiz0EyvDRJjjxGyUQa2cCNZn/wMyzrRJ/qcDXOQazLI=

healthcheck/healthcheck.go

@@ -5,9 +5,7 @@ import (
 	"crypto/tls"
 	"encoding/json"
 	"fmt"
-	"net"
 	"net/http"
-	"strconv"
 	"strings"
 	"sync"
 	"time"
@@ -37,38 +35,33 @@ func (s Health) String() string {
 
 // Config holds the health check configuration for a target
 type Config struct {
-	ID                 int               `json:"id"`
-	Enabled            bool              `json:"hcEnabled"`
-	Path               string            `json:"hcPath"`
-	Scheme             string            `json:"hcScheme"`
-	Mode               string            `json:"hcMode"`
-	Hostname           string            `json:"hcHostname"`
-	Port               int               `json:"hcPort"`
-	Interval           int               `json:"hcInterval"`          // in seconds
-	UnhealthyInterval  int               `json:"hcUnhealthyInterval"` // in seconds
-	Timeout            int               `json:"hcTimeout"`           // in seconds
-	FollowRedirects    *bool             `json:"hcFollowRedirects"`
-	Headers            map[string]string `json:"hcHeaders"`
-	Method             string            `json:"hcMethod"`
-	Status             int               `json:"hcStatus"` // HTTP status code
-	TLSServerName      string            `json:"hcTlsServerName"`
-	HealthyThreshold   int               `json:"hcHealthyThreshold"`   // consecutive successes required to become healthy
-	UnhealthyThreshold int               `json:"hcUnhealthyThreshold"` // consecutive failures required to become unhealthy
+	ID                int               `json:"id"`
+	Enabled           bool              `json:"hcEnabled"`
+	Path              string            `json:"hcPath"`
+	Scheme            string            `json:"hcScheme"`
+	Mode              string            `json:"hcMode"`
+	Hostname          string            `json:"hcHostname"`
+	Port              int               `json:"hcPort"`
+	Interval          int               `json:"hcInterval"`          // in seconds
+	UnhealthyInterval int               `json:"hcUnhealthyInterval"` // in seconds
+	Timeout           int               `json:"hcTimeout"`           // in seconds
+	Headers           map[string]string `json:"hcHeaders"`
+	Method            string            `json:"hcMethod"`
+	Status            int               `json:"hcStatus"` // HTTP status code
+	TLSServerName     string            `json:"hcTlsServerName"`
 }
 
 // Target represents a health check target with its current status
 type Target struct {
-	Config               Config    `json:"config"`
-	Status               Health    `json:"status"`
-	LastCheck            time.Time `json:"lastCheck"`
-	LastError            string    `json:"lastError,omitempty"`
-	CheckCount           int       `json:"checkCount"`
-	timer                *time.Timer
-	ctx                  context.Context
-	cancel               context.CancelFunc
-	client               *http.Client
-	consecutiveSuccesses int
-	consecutiveFailures  int
+	Config     Config    `json:"config"`
+	Status     Health    `json:"status"`
+	LastCheck  time.Time `json:"lastCheck"`
+	LastError  string    `json:"lastError,omitempty"`
+	CheckCount int       `json:"checkCount"`
+	timer      *time.Timer
+	ctx        context.Context
+	cancel     context.CancelFunc
+	client     *http.Client
 }
 
 // StatusChangeCallback is called when any target's status changes
@@ -170,16 +163,9 @@ func (m *Monitor) addTargetUnsafe(config Config) error {
 	if config.Timeout == 0 {
 		config.Timeout = 5
 	}
-	if config.HealthyThreshold == 0 {
-		config.HealthyThreshold = 1
-	}
-	if config.UnhealthyThreshold == 0 {
-		config.UnhealthyThreshold = 1
-	}
 
-	logger.Debug("Target %d configuration: mode=%s, scheme=%s, method=%s, interval=%ds, timeout=%ds, healthyThreshold=%d, unhealthyThreshold=%d",
-		config.ID, config.Mode, config.Scheme, config.Method, config.Interval, config.Timeout,
-		config.HealthyThreshold, config.UnhealthyThreshold)
+	logger.Debug("Target %d configuration: scheme=%s, method=%s, interval=%ds, timeout=%ds",
+		config.ID, config.Scheme, config.Method, config.Interval, config.Timeout)
 
 	// Parse headers if provided as string
 	if len(config.Headers) == 0 && config.Path != "" {
@@ -201,21 +187,7 @@ func (m *Monitor) addTargetUnsafe(config Config) error {
 		ctx:    ctx,
 		cancel: cancel,
 		client: &http.Client{
-			CheckRedirect: func() func(*http.Request, []*http.Request) error {
-				// Default to following redirects if not explicitly configured
-				followRedirects := config.FollowRedirects == nil || *config.FollowRedirects
-				if !followRedirects {
-					return func(req *http.Request, via []*http.Request) error {
-						return http.ErrUseLastResponse
-					}
-				}
-				return nil
-			}(),
 			Transport: &http.Transport{
-				// Disable keep-alives so each health check uses a fresh connection.
-				// Reusing idle connections causes spurious timeouts when the remote
-				// server closes the connection between long check intervals.
-				DisableKeepAlives: true,
 				TLSClientConfig: &tls.Config{
 					// Configure TLS settings based on certificate enforcement
 					InsecureSkipVerify: !m.enforceCert,
@@ -256,7 +228,7 @@ func (m *Monitor) RemoveTarget(id int) error {
 
 	// Notify callback of status change
 	if m.callback != nil {
-		go m.callback(m.getAllTargetsUnsafe())
+		go m.callback(m.GetTargets())
 	}
 
 	logger.Info("Successfully removed target %d", id)
@@ -289,7 +261,7 @@ func (m *Monitor) RemoveTargets(ids []int) error {
 
 	// Notify callback of status change if any targets were removed
 	if len(notFound) != len(ids) && m.callback != nil {
-		go m.callback(m.getAllTargetsUnsafe())
+		go m.callback(m.GetTargets())
 	}
 
 	if len(notFound) > 0 {
@@ -387,77 +359,17 @@ func (m *Monitor) monitorTarget(target *Target) {
 	}
 }
 
-// performHealthCheck performs a health check on a target and applies threshold logic
+// performHealthCheck performs a health check on a target
 func (m *Monitor) performHealthCheck(target *Target) {
 	target.CheckCount++
 	target.LastCheck = time.Now()
+	target.LastError = ""
 
-	var passed bool
-	var checkErr string
-
-	switch strings.ToLower(target.Config.Mode) {
-	case "tcp":
-		passed, checkErr = m.performTCPCheck(target)
-	default:
-		// "http", "https", or anything else falls through to HTTP
-		passed, checkErr = m.performHTTPCheck(target)
-	}
-
-	if passed {
-		target.consecutiveFailures = 0
-		target.consecutiveSuccesses++
-
-		logger.Debug("Target %d: check passed (consecutive successes: %d / threshold: %d)",
-			target.Config.ID, target.consecutiveSuccesses, target.Config.HealthyThreshold)
-
-		if target.consecutiveSuccesses >= target.Config.HealthyThreshold {
-			target.Status = StatusHealthy
-			target.LastError = ""
-		}
-	} else {
-		target.consecutiveSuccesses = 0
-		target.consecutiveFailures++
-		target.LastError = checkErr
-
-		logger.Debug("Target %d: check failed (consecutive failures: %d / threshold: %d): %s",
-			target.Config.ID, target.consecutiveFailures, target.Config.UnhealthyThreshold, checkErr)
-
-		if target.consecutiveFailures >= target.Config.UnhealthyThreshold {
-			target.Status = StatusUnhealthy
-		}
-	}
-}
-
-// performTCPCheck dials the target's host:port over TCP and returns whether it succeeded
-func (m *Monitor) performTCPCheck(target *Target) (bool, string) {
-	address := net.JoinHostPort(target.Config.Hostname, strconv.Itoa(target.Config.Port))
-	timeout := time.Duration(target.Config.Timeout) * time.Second
-
-	logger.Debug("Target %d: performing TCP health check to %s (timeout: %v)",
-		target.Config.ID, address, timeout)
-
-	ctx, cancel := context.WithTimeout(target.ctx, timeout)
-	defer cancel()
-	conn, err := (&net.Dialer{}).DialContext(ctx, "tcp", address)
-	if err != nil {
-		msg := fmt.Sprintf("TCP dial failed: %v", err)
-		logger.Warn("Target %d: %s", target.Config.ID, msg)
-		return false, msg
-	}
-	conn.Close()
-
-	logger.Debug("Target %d: TCP health check passed", target.Config.ID)
-	return true, ""
-}
-
-// performHTTPCheck performs an HTTP/HTTPS health check and returns whether it succeeded
-func (m *Monitor) performHTTPCheck(target *Target) (bool, string) {
-	// Build URL (use net.JoinHostPort to properly handle IPv6 addresses with ports)
-	host := target.Config.Hostname
+	// Build URL
+	url := fmt.Sprintf("%s://%s", target.Config.Scheme, target.Config.Hostname)
 	if target.Config.Port > 0 {
-		host = net.JoinHostPort(target.Config.Hostname, strconv.Itoa(target.Config.Port))
+		url = fmt.Sprintf("%s:%d", url, target.Config.Port)
 	}
-	url := fmt.Sprintf("%s://%s", target.Config.Scheme, host)
 	if target.Config.Path != "" {
 		if !strings.HasPrefix(target.Config.Path, "/") {
 			url += "/"
@@ -465,7 +377,7 @@ func (m *Monitor) performHTTPCheck(target *Target) (bool, string) {
 		url += target.Config.Path
 	}
 
-	logger.Debug("Target %d: performing HTTP health check %d to %s",
+	logger.Debug("Target %d: performing health check %d to %s",
 		target.Config.ID, target.CheckCount, url)
 
 	if target.Config.Scheme == "https" {
@@ -473,16 +385,16 @@ func (m *Monitor) performHTTPCheck(target *Target) (bool, string) {
 			target.Config.ID, m.enforceCert)
 	}
 
-	// Create request with timeout context, derived from the target's context so
-	// that in-flight requests are cancelled immediately when the target is replaced.
-	ctx, cancel := context.WithTimeout(target.ctx, time.Duration(target.Config.Timeout)*time.Second)
+	// Create request
+	ctx, cancel := context.WithTimeout(context.Background(), time.Duration(target.Config.Timeout)*time.Second)
 	defer cancel()
 
 	req, err := http.NewRequestWithContext(ctx, target.Config.Method, url, nil)
 	if err != nil {
-		msg := fmt.Sprintf("failed to create request: %v", err)
-		logger.Warn("Target %d: %s", target.Config.ID, msg)
-		return false, msg
+		target.Status = StatusUnhealthy
+		target.LastError = fmt.Sprintf("failed to create request: %v", err)
+		logger.Warn("Target %d: failed to create request: %v", target.Config.ID, err)
+		return
 	}
 
 	// Add headers
@@ -498,34 +410,43 @@ func (m *Monitor) performHTTPCheck(target *Target) (bool, string) {
 	// Perform request
 	resp, err := target.client.Do(req)
 	if err != nil {
-		msg := fmt.Sprintf("request failed: %v", err)
+		target.Status = StatusUnhealthy
+		target.LastError = fmt.Sprintf("request failed: %v", err)
 		logger.Warn("Target %d: health check failed: %v", target.Config.ID, err)
-		return false, msg
+		return
 	}
 	defer resp.Body.Close()
 
 	// Check response status
+	var expectedStatus int
 	if target.Config.Status > 0 {
+		expectedStatus = target.Config.Status
+	} else {
+		expectedStatus = 0 // Use range check for 200-299
+	}
+
+	if expectedStatus > 0 {
+		logger.Debug("Target %d: checking health status against expected code %d", target.Config.ID, expectedStatus)
 		// Check for specific status code
-		logger.Debug("Target %d: checking status against expected code %d", target.Config.ID, target.Config.Status)
-		if resp.StatusCode == target.Config.Status {
-			logger.Debug("Target %d: health check passed (status: %d)", target.Config.ID, resp.StatusCode)
-			return true, ""
+		if resp.StatusCode == expectedStatus {
+			target.Status = StatusHealthy
+			logger.Debug("Target %d: health check passed (status: %d, expected: %d)", target.Config.ID, resp.StatusCode, expectedStatus)
+		} else {
+			target.Status = StatusUnhealthy
+			target.LastError = fmt.Sprintf("unexpected status code: %d (expected: %d)", resp.StatusCode, expectedStatus)
+			logger.Warn("Target %d: health check failed with status code %d (expected: %d)", target.Config.ID, resp.StatusCode, expectedStatus)
+		}
+	} else {
+		// Check for 2xx range
+		if resp.StatusCode >= 200 && resp.StatusCode < 300 {
+			target.Status = StatusHealthy
+			logger.Debug("Target %d: health check passed (status: %d)", target.Config.ID, resp.StatusCode)
+		} else {
+			target.Status = StatusUnhealthy
+			target.LastError = fmt.Sprintf("unhealthy status code: %d", resp.StatusCode)
+			logger.Warn("Target %d: health check failed with status code %d", target.Config.ID, resp.StatusCode)
 		}
-		msg := fmt.Sprintf("unexpected status code: %d (expected: %d)", resp.StatusCode, target.Config.Status)
-		logger.Warn("Target %d: %s", target.Config.ID, msg)
-		return false, msg
 	}
-
-	// Default: check for 2xx range
-	if resp.StatusCode >= 200 && resp.StatusCode < 300 {
-		logger.Debug("Target %d: health check passed (status: %d)", target.Config.ID, resp.StatusCode)
-		return true, ""
-	}
-
-	msg := fmt.Sprintf("unhealthy status code: %d", resp.StatusCode)
-	logger.Warn("Target %d: health check failed with status code %d", target.Config.ID, resp.StatusCode)
-	return false, msg
 }
 
 // Stop stops monitoring all targets
@@ -592,7 +513,7 @@ func (m *Monitor) DisableTarget(id int) error {
 
 		// Notify callback of status change
 		if m.callback != nil {
-			go m.callback(m.getAllTargetsUnsafe())
+			go m.callback(m.GetTargets())
 		}
 	} else {
 		logger.Debug("Target %d is already disabled", id)
@@ -600,82 +521,3 @@ func (m *Monitor) DisableTarget(id int) error {
 
 	return nil
 }
-
-// GetTargetIDs returns a slice of all current target IDs
-func (m *Monitor) GetTargetIDs() []int {
-	m.mutex.RLock()
-	defer m.mutex.RUnlock()
-
-	ids := make([]int, 0, len(m.targets))
-	for id := range m.targets {
-		ids = append(ids, id)
-	}
-	return ids
-}
-
-// SyncTargets synchronizes the current targets to match the desired set.
-// It removes targets not in the desired set and adds targets that are missing.
-func (m *Monitor) SyncTargets(desiredConfigs []Config) error {
-	m.mutex.Lock()
-	defer m.mutex.Unlock()
-
-	logger.Info("Syncing health check targets: %d desired targets", len(desiredConfigs))
-
-	// Build a set of desired target IDs
-	desiredIDs := make(map[int]Config)
-	for _, config := range desiredConfigs {
-		desiredIDs[config.ID] = config
-	}
-
-	// Find targets to remove (exist but not in desired set)
-	var toRemove []int
-	for id := range m.targets {
-		if _, exists := desiredIDs[id]; !exists {
-			toRemove = append(toRemove, id)
-		}
-	}
-
-	// Remove targets that are not in the desired set
-	for _, id := range toRemove {
-		logger.Info("Sync: removing health check target %d", id)
-		if target, exists := m.targets[id]; exists {
-			target.cancel()
-			delete(m.targets, id)
-		}
-	}
-
-	// Add or update targets from the desired set
-	var addedCount, updatedCount int
-	for id, config := range desiredIDs {
-		if existing, exists := m.targets[id]; exists {
-			// Target exists - check if config changed and update if needed
-			// For now, we'll replace it to ensure config is up to date
-			logger.Debug("Sync: updating health check target %d", id)
-			existing.cancel()
-			delete(m.targets, id)
-			if err := m.addTargetUnsafe(config); err != nil {
-				logger.Error("Sync: failed to update target %d: %v", id, err)
-				return fmt.Errorf("failed to update target %d: %v", id, err)
-			}
-			updatedCount++
-		} else {
-			// Target doesn't exist - add it
-			logger.Debug("Sync: adding health check target %d", id)
-			if err := m.addTargetUnsafe(config); err != nil {
-				logger.Error("Sync: failed to add target %d: %v", id, err)
-				return fmt.Errorf("failed to add target %d: %v", id, err)
-			}
-			addedCount++
-		}
-	}
-
-	logger.Info("Sync complete: removed %d, added %d, updated %d targets",
-		len(toRemove), addedCount, updatedCount)
-
-	// Notify callback if any changes were made
-	if (len(toRemove) > 0 || addedCount > 0 || updatedCount > 0) && m.callback != nil {
-		go m.callback(m.getAllTargetsUnsafe())
-	}
-
-	return nil
-}

holepunch/holepunch.go

@@ -37,7 +37,6 @@ type Manager struct {
 	clientType string
 	exitNodes  map[string]ExitNode // key is endpoint
 	updateChan chan struct{}       // signals the goroutine to refresh exit nodes
-	publicDNS  []string
 
 	sendHolepunchInterval    time.Duration
 	sendHolepunchIntervalMin time.Duration
@@ -50,13 +49,12 @@ const defaultSendHolepunchIntervalMax = 60 * time.Second
 const defaultSendHolepunchIntervalMin = 1 * time.Second
 
 // NewManager creates a new hole punch manager
-func NewManager(sharedBind *bind.SharedBind, ID string, clientType string, publicKey string, publicDNS []string) *Manager {
+func NewManager(sharedBind *bind.SharedBind, ID string, clientType string, publicKey string) *Manager {
 	return &Manager{
 		sharedBind:               sharedBind,
 		ID:                       ID,
 		clientType:               clientType,
 		publicKey:                publicKey,
-		publicDNS:                publicDNS,
 		exitNodes:                make(map[string]ExitNode),
 		sendHolepunchInterval:    defaultSendHolepunchIntervalMin,
 		sendHolepunchIntervalMin: defaultSendHolepunchIntervalMin,
@@ -73,14 +71,6 @@ func (m *Manager) SetToken(token string) {
 	m.token = token
 }
 
-// SetPublicDNS replaces the list of DNS servers used to resolve exit-node
-// endpoints.  The servers must be in "host:port" format (e.g. "8.8.8.8:53").
-func (m *Manager) SetPublicDNS(servers []string) {
-	m.mu.Lock()
-	defer m.mu.Unlock()
-	m.publicDNS = servers
-}
-
 // IsRunning returns whether hole punching is currently active
 func (m *Manager) IsRunning() bool {
 	m.mu.Lock()
@@ -291,13 +281,7 @@ func (m *Manager) TriggerHolePunch() error {
 	// Send hole punch to all exit nodes
 	successCount := 0
 	for _, exitNode := range currentExitNodes {
-		var host string
-		var err error
-		if len(m.publicDNS) > 0 {
-			host, err = util.ResolveDomainUpstream(exitNode.Endpoint, m.publicDNS)
-		} else {
-			host, err = util.ResolveDomain(exitNode.Endpoint)
-		}
+		host, err := util.ResolveDomain(exitNode.Endpoint)
 		if err != nil {
 			logger.Warn("Failed to resolve endpoint %s: %v", exitNode.Endpoint, err)
 			continue
@@ -408,13 +392,7 @@ func (m *Manager) runMultipleExitNodes() {
 
 		var resolvedNodes []resolvedExitNode
 		for _, exitNode := range currentExitNodes {
-			var host string
-			var err error
-			if len(m.publicDNS) > 0 {
-				host, err = util.ResolveDomainUpstream(exitNode.Endpoint, m.publicDNS)
-			} else {
-				host, err = util.ResolveDomain(exitNode.Endpoint)
-			}
+			host, err := util.ResolveDomain(exitNode.Endpoint)
 			if err != nil {
 				logger.Warn("Failed to resolve endpoint %s: %v", exitNode.Endpoint, err)
 				continue

holepunch/tester.go

@@ -43,14 +43,13 @@ func DefaultTestOptions() TestConnectionOptions {
 
 // cachedAddr holds a cached resolved UDP address
 type cachedAddr struct {
-	addr       *net.UDPAddr
+	addr      *net.UDPAddr
 	resolvedAt time.Time
 }
 
 // HolepunchTester monitors holepunch connectivity using magic packets
 type HolepunchTester struct {
 	sharedBind *bind.SharedBind
-	publicDNS  []string
 	mu         sync.RWMutex
 	running    bool
 	stopChan   chan struct{}
@@ -85,27 +84,14 @@ type pendingRequest struct {
 }
 
 // NewHolepunchTester creates a new holepunch tester using the given SharedBind
-func NewHolepunchTester(sharedBind *bind.SharedBind, publicDNS []string) *HolepunchTester {
+func NewHolepunchTester(sharedBind *bind.SharedBind) *HolepunchTester {
 	return &HolepunchTester{
 		sharedBind:   sharedBind,
-		publicDNS:    publicDNS,
 		addrCache:    make(map[string]*cachedAddr),
 		addrCacheTTL: 5 * time.Minute, // Cache addresses for 5 minutes
 	}
 }
 
-// SetPublicDNS replaces the list of DNS servers used to resolve peer endpoints.
-// The servers must be in "host:port" format (e.g. "8.8.8.8:53").
-func (t *HolepunchTester) SetPublicDNS(servers []string) {
-	t.mu.Lock()
-	defer t.mu.Unlock()
-	t.publicDNS = servers
-	// Invalidate the address cache so endpoints are re-resolved with the new DNS.
-	t.addrCacheMu.Lock()
-	t.addrCache = make(map[string]*cachedAddr)
-	t.addrCacheMu.Unlock()
-}
-
 // SetCallback sets the callback for connection status changes
 func (t *HolepunchTester) SetCallback(callback HolepunchStatusCallback) {
 	t.mu.Lock()
@@ -183,13 +169,7 @@ func (t *HolepunchTester) resolveEndpoint(endpoint string) (*net.UDPAddr, error)
 	}
 
 	// Resolve the endpoint
-	var host string
-	var err error
-	if len(t.publicDNS) > 0 {
-		host, err = util.ResolveDomainUpstream(endpoint, t.publicDNS)
-	} else {
-		host, err = util.ResolveDomain(endpoint)
-	}
+	host, err := util.ResolveDomain(endpoint)
 	if err != nil {
 		host = endpoint
 	}

nativessh/auth.go

@@ -1,158 +0,0 @@
-package nativessh
-
-import (
-	"bufio"
-	"fmt"
-	"net"
-	"os"
-	"os/user"
-	"path/filepath"
-	"strings"
-
-	"github.com/fosrl/newt/logger"
-	"golang.org/x/crypto/ssh"
-)
-
-type staticConnMeta struct {
-	user string
-}
-
-func (m staticConnMeta) User() string          { return m.user }
-func (m staticConnMeta) SessionID() []byte     { return nil }
-func (m staticConnMeta) ClientVersion() []byte { return nil }
-func (m staticConnMeta) ServerVersion() []byte { return nil }
-func (m staticConnMeta) RemoteAddr() net.Addr  { return nil }
-func (m staticConnMeta) LocalAddr() net.Addr   { return nil }
-
-// CheckAuthorizedKeys reports whether key matches any entry in the system
-// user's ~/.ssh/authorized_keys file.  Returns false (not an error) when the
-// user or file does not exist.
-func CheckAuthorizedKeys(username string, key ssh.PublicKey) bool {
-	u, err := user.Lookup(username)
-	if err != nil {
-		return false
-	}
-	f, err := os.Open(filepath.Join(u.HomeDir, ".ssh", "authorized_keys"))
-	if err != nil {
-		return false
-	}
-	defer f.Close()
-
-	want := ssh.FingerprintSHA256(key)
-	scanner := bufio.NewScanner(f)
-	for scanner.Scan() {
-		line := strings.TrimSpace(scanner.Text())
-		if line == "" || strings.HasPrefix(line, "#") {
-			continue
-		}
-		parsed, _, _, _, err := ssh.ParseAuthorizedKey([]byte(line))
-		if err != nil {
-			continue
-		}
-		if ssh.FingerprintSHA256(parsed) == want {
-			return true
-		}
-	}
-	return false
-}
-
-// SystemUserExists reports whether a user account with the given name exists
-// on the host OS.
-func SystemUserExists(username string) bool {
-	_, err := user.Lookup(username)
-	return err == nil
-}
-
-// Authenticate authenticates a user for a browser-based native SSH session.
-// It tries, in order:
-//  1. Private key — parses privateKeyPEM and checks it against the user's
-//     ~/.ssh/authorized_keys.
-//  2. Password — verifies password via the host OS PAM stack (Linux only).
-//
-// Returns nil on the first method that succeeds, or an error if all fail.
-func Authenticate(username, password, privateKeyPEM string) error {
-	return AuthenticateWithCertificate(nil, username, password, privateKeyPEM, "")
-}
-
-// AuthenticateWithCertificate authenticates a user for a browser-based native
-// SSH session using the same method ordering as the native SSH server:
-//  1. Private key in host ~/.ssh/authorized_keys.
-//  2. SSH certificate signed by the configured CA (when provided).
-//  3. Password via host PAM stack.
-func AuthenticateWithCertificate(store *CredentialStore, username, password, privateKeyPEM, certificate string) error {
-	logger.Debug("nativessh: authenticating user %q (hasPassword=%v, hasPrivateKey=%v)", username, password != "", privateKeyPEM != "")
-	if !SystemUserExists(username) {
-		logger.Debug("nativessh: user %q not found on system", username)
-		return fmt.Errorf("user %q does not exist", username)
-	}
-
-	var signer ssh.Signer
-	if privateKeyPEM != "" {
-		parsedSigner, err := ssh.ParsePrivateKey([]byte(privateKeyPEM))
-		if err != nil {
-			logger.Debug("nativessh: failed to parse private key for %q: %v", username, err)
-		} else if CheckAuthorizedKeys(username, parsedSigner.PublicKey()) {
-			logger.Debug("nativessh: private key auth succeeded for %q", username)
-			return nil
-		} else {
-			signer = parsedSigner
-			logger.Debug("nativessh: private key not in authorized_keys for %q", username)
-		}
-	}
-
-	if store != nil && certificate != "" {
-		if signer == nil {
-			logger.Debug("nativessh: certificate provided for %q but no matching private key was provided", username)
-		} else {
-			pub, _, _, _, err := ssh.ParseAuthorizedKey([]byte(certificate))
-			if err != nil {
-				logger.Debug("nativessh: failed to parse certificate for %q: %v", username, err)
-			} else {
-				cert, ok := pub.(*ssh.Certificate)
-				if !ok {
-					logger.Debug("nativessh: provided cert data for %q is not an SSH certificate", username)
-				} else if ssh.FingerprintSHA256(cert.Key) != ssh.FingerprintSHA256(signer.PublicKey()) {
-					logger.Debug("nativessh: certificate key mismatch for %q", username)
-				} else {
-					caKey, userPrincipals := store.get(username)
-					if caKey == nil {
-						logger.Debug("nativessh: CA key is not set for certificate auth user %q", username)
-					} else if len(userPrincipals) == 0 {
-						logger.Debug("nativessh: no allowed principals found for certificate auth user %q", username)
-					} else {
-						checker := &ssh.CertChecker{
-							IsUserAuthority: func(auth ssh.PublicKey) bool {
-								return ssh.FingerprintSHA256(auth) == ssh.FingerprintSHA256(caKey)
-							},
-						}
-
-						var lastErr error
-						for principal := range userPrincipals {
-							_, authErr := checker.Authenticate(staticConnMeta{user: principal}, cert)
-							if authErr == nil {
-								logger.Debug("nativessh: certificate auth succeeded for %q (principal=%q)", username, principal)
-								return nil
-							}
-							lastErr = authErr
-						}
-						if lastErr != nil {
-							logger.Debug("nativessh: certificate auth failed for %q: %v", username, lastErr)
-						}
-					}
-				}
-			}
-		}
-	}
-
-	if password != "" {
-		if err := VerifySystemPassword(username, password); err != nil {
-			logger.Debug("nativessh: password auth failed for %q: %v", username, err)
-		} else {
-			logger.Debug("nativessh: password auth succeeded for %q", username)
-			return nil
-		}
-	} else {
-		logger.Debug("nativessh: no password provided for %q", username)
-	}
-	return fmt.Errorf("authentication failed for user %q", username)
-}

nativessh/pam_linux.go

@@ -1,99 +0,0 @@
-//go:build linux
-
-package nativessh
-
-import (
-	"bufio"
-	"bytes"
-	"errors"
-	"fmt"
-	"os"
-	"strings"
-
-	"github.com/fosrl/newt/logger"
-	"github.com/go-crypt/crypt"
-	"github.com/go-crypt/x/yescrypt"
-)
-
-// VerifySystemPassword authenticates username/password by reading /etc/shadow.
-// Supports yescrypt ($y$), bcrypt ($2b$/$2a$/$2y$), SHA-512 ($6$), SHA-256
-// ($5$), argon2, scrypt, and other schemes handled by go-crypt/crypt.
-func VerifySystemPassword(username, password string) error {
-	hash, err := readShadowHash(username)
-	if err != nil {
-		logger.Debug("nativessh/pam: readShadowHash for %q failed: %v", username, err)
-		return fmt.Errorf("shadow: %w", err)
-	}
-
-	// Log the scheme prefix only (never the full hash).
-	scheme := "unknown"
-	for _, prefix := range []string{"$y$", "$2a$", "$2b$", "$2y$", "$6$", "$5$", "$1$"} {
-		if strings.HasPrefix(hash, prefix) {
-			scheme = prefix
-			break
-		}
-	}
-	logger.Debug("nativessh/pam: verifying password for %q using scheme %s", username, scheme)
-
-	// Yescrypt ($y$) is not in go-crypt/crypt's default decoder; handle it directly.
-	if strings.HasPrefix(hash, "$y$") {
-		computed, err := yescrypt.Hash([]byte(password), []byte(hash))
-		if err != nil {
-			logger.Debug("nativessh/pam: yescrypt.Hash for %q failed: %v", username, err)
-			return fmt.Errorf("yescrypt: %w", err)
-		}
-		if !bytes.Equal(computed, []byte(hash)) {
-			logger.Debug("nativessh/pam: yescrypt mismatch for %q", username)
-			return errors.New("authentication failed")
-		}
-		return nil
-	}
-
-	decoder, err := crypt.NewDefaultDecoder()
-	if err != nil {
-		return fmt.Errorf("crypt decoder: %w", err)
-	}
-
-	digest, err := decoder.Decode(hash)
-	if err != nil {
-		logger.Debug("nativessh/pam: failed to decode hash for %q: %v", username, err)
-		return fmt.Errorf("unsupported password hash scheme %q: %w", scheme, err)
-	}
-
-	match, err := digest.MatchAdvanced(password)
-	if err != nil {
-		logger.Debug("nativessh/pam: MatchAdvanced for %q failed: %v", username, err)
-		return err
-	}
-	if !match {
-		logger.Debug("nativessh/pam: password mismatch for %q", username)
-		return errors.New("authentication failed")
-	}
-	return nil
-}
-
-// readShadowHash reads /etc/shadow and returns the password hash for username.
-func readShadowHash(username string) (string, error) {
-	f, err := os.Open("/etc/shadow")
-	if err != nil {
-		return "", err
-	}
-	defer f.Close()
-
-	scanner := bufio.NewScanner(f)
-	for scanner.Scan() {
-		fields := strings.SplitN(scanner.Text(), ":", 3)
-		if len(fields) < 2 || fields[0] != username {
-			continue
-		}
-		h := fields[1]
-		if h == "" || h == "*" || strings.HasPrefix(h, "!") || h == "x" {
-			return "", errors.New("account locked or has no password")
-		}
-		return h, nil
-	}
-	if err := scanner.Err(); err != nil {
-		return "", err
-	}
-	return "", errors.New("user not found in shadow database")
-}

nativessh/pam_other.go

@@ -1,11 +0,0 @@
-//go:build !linux
-
-package nativessh
-
-import "errors"
-
-// VerifySystemPassword is not supported on non-Linux platforms; it always
-// returns an error so that password authentication is never accepted.
-func VerifySystemPassword(username, password string) error {
-	return errors.New("password authentication not supported on this platform")
-}

nativessh/pty.go

@@ -1,130 +0,0 @@
-//go:build !windows
-
-package nativessh
-
-import (
-	"bufio"
-	"errors"
-	"fmt"
-	"os"
-	"os/exec"
-	"os/user"
-	"strings"
-	"sync"
-
-	"github.com/creack/pty"
-)
-
-// PTYSession is a running shell process attached to a PTY.
-// It implements io.ReadWriteCloser so it can be bridged to any transport.
-type PTYSession struct {
-	ptmx     *os.File
-	cmd      *exec.Cmd
-	waitOnce sync.Once
-	exitCode int
-}
-
-// findShell returns the path to the best available interactive shell by
-// checking preferred shells in order, falling back to /bin/sh.
-func findShell() string {
-	preferred := []string{"zsh", "bash", "fish", "ksh", "sh"}
-	for _, name := range preferred {
-		if path, err := exec.LookPath(name); err == nil {
-			return path
-		}
-	}
-	return "/bin/sh"
-}
-
-// userShell returns the login shell configured for u in /etc/passwd.
-// If the field is empty or the binary does not exist, it falls back to
-// findShell so there is always a usable shell.
-func userShell(u *user.User) string {
-	if shell := passwdShell(u.Username); shell != "" {
-		if _, err := exec.LookPath(shell); err == nil {
-			return shell
-		}
-	}
-	return findShell()
-}
-
-// passwdShell reads /etc/passwd and returns the login shell for the named user.
-// Returns "" if the user is not found or the file cannot be read.
-func passwdShell(username string) string {
-	f, err := os.Open("/etc/passwd")
-	if err != nil {
-		return ""
-	}
-	defer f.Close()
-	scanner := bufio.NewScanner(f)
-	for scanner.Scan() {
-		line := scanner.Text()
-		if line == "" || line[0] == '#' {
-			continue
-		}
-		// Fields: username:password:uid:gid:gecos:home:shell
-		fields := strings.SplitN(line, ":", 7)
-		if len(fields) == 7 && fields[0] == username {
-			return fields[6]
-		}
-	}
-	_ = scanner.Err()
-	return ""
-}
-
-// NewPTYSession spawns the best available shell in a PTY.
-func NewPTYSession() (*PTYSession, error) {
-	shell := findShell()
-	cmd := exec.Command(shell)
-	cmd.Env = append(os.Environ(), "TERM=xterm-256color")
-	ptmx, err := pty.Start(cmd)
-	if err != nil {
-		return nil, fmt.Errorf("pty start: %w", err)
-	}
-	return &PTYSession{ptmx: ptmx, cmd: cmd}, nil
-}
-
-// Read reads output from the PTY.
-func (p *PTYSession) Read(b []byte) (int, error) {
-	return p.ptmx.Read(b)
-}
-
-// Write writes input to the PTY.
-func (p *PTYSession) Write(b []byte) (int, error) {
-	return p.ptmx.Write(b)
-}
-
-// Resize changes the PTY window size.
-func (p *PTYSession) Resize(cols, rows uint16) error {
-	return pty.Setsize(p.ptmx, &pty.Winsize{Cols: cols, Rows: rows})
-}
-
-// wait waits for the child process to exit exactly once and records its exit
-// code. Safe to call concurrently or multiple times.
-func (p *PTYSession) wait() {
-	p.waitOnce.Do(func() {
-		err := p.cmd.Wait()
-		if err != nil {
-			var exitErr *exec.ExitError
-			if errors.As(err, &exitErr) {
-				p.exitCode = exitErr.ExitCode()
-				return
-			}
-			p.exitCode = 1
-		}
-	})
-}
-
-// ExitCode waits for the shell process to exit and returns its exit code.
-// It is safe to call before or after Close.
-func (p *PTYSession) ExitCode() int {
-	p.wait()
-	return p.exitCode
-}
-
-// Close closes the PTY and waits for the child process to exit.
-func (p *PTYSession) Close() error {
-	err := p.ptmx.Close()
-	p.wait()
-	return err
-}

nativessh/pty_unix.go

@@ -1,78 +0,0 @@
-//go:build !windows
-
-package nativessh
-
-import (
-	"fmt"
-	"os"
-	"os/exec"
-	"os/user"
-	"strconv"
-	"syscall"
-
-	"github.com/creack/pty"
-)
-
-// NewPTYSessionAs spawns an interactive shell in a PTY running as the given
-// system user.  The calling process must have sufficient privileges (typically
-// root / CAP_SETUID) to switch to a different UID/GID.
-func NewPTYSessionAs(username string) (*PTYSession, error) {
-	u, err := user.Lookup(username)
-	if err != nil {
-		return nil, fmt.Errorf("user lookup %q: %w", username, err)
-	}
-	uid, err := strconv.ParseUint(u.Uid, 10, 32)
-	if err != nil {
-		return nil, fmt.Errorf("parse uid: %w", err)
-	}
-	gid, err := strconv.ParseUint(u.Gid, 10, 32)
-	if err != nil {
-		return nil, fmt.Errorf("parse gid: %w", err)
-	}
-
-	// Collect supplementary group IDs.
-	groupIDs, err := u.GroupIds()
-	if err != nil {
-		groupIDs = []string{}
-	}
-	var groups []uint32
-	for _, g := range groupIDs {
-		gval, err := strconv.ParseUint(g, 10, 32)
-		if err == nil {
-			groups = append(groups, uint32(gval))
-		}
-	}
-
-	shell := userShell(u)
-
-	// Prefer the user's home directory as the working directory, but fall back
-	// to / if it does not exist (e.g. useradd was run without -m).
-	homeDir := u.HomeDir
-	if _, err := os.Stat(homeDir); err != nil {
-		homeDir = "/"
-	}
-
-	cmd := exec.Command(shell, "--login")
-	cmd.Env = []string{
-		"TERM=xterm-256color",
-		"HOME=" + u.HomeDir,
-		"USER=" + username,
-		"LOGNAME=" + username,
-		"SHELL=" + shell,
-		"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
-	}
-	cmd.Dir = homeDir
-	cmd.SysProcAttr = &syscall.SysProcAttr{
-		Credential: &syscall.Credential{
-			Uid:    uint32(uid),
-			Gid:    uint32(gid),
-			Groups: groups,
-		},
-	}
-
-	ptmx, err := pty.Start(cmd)
-	if err != nil {
-		return nil, fmt.Errorf("pty start: %w", err)
-	}
-	return &PTYSession{ptmx: ptmx, cmd: cmd}, nil
-}

nativessh/server.go

@@ -1,467 +0,0 @@
-//go:build !windows
-
-package nativessh
-
-import (
-	"crypto/ed25519"
-	"crypto/rand"
-	"errors"
-	"fmt"
-	"io"
-	"net"
-	"os"
-	"os/exec"
-	"os/user"
-	"strconv"
-	"strings"
-	"sync"
-	"syscall"
-
-	"github.com/fosrl/newt/logger"
-	"golang.org/x/crypto/ssh"
-)
-
-// CredentialStore holds in-memory SSH credentials that can be updated at runtime.
-// It is safe for concurrent use.
-type CredentialStore struct {
-	mu         sync.RWMutex
-	caKey      ssh.PublicKey
-	principals map[string]map[string]struct{} // username -> set of allowed principals
-}
-
-// connMetaWithUser wraps ConnMetadata while overriding User() for cert checks.
-type connMetaWithUser struct {
-	ssh.ConnMetadata
-	user string
-}
-
-func (m connMetaWithUser) User() string { return m.user }
-
-// NewCredentialStore returns an empty, ready-to-use CredentialStore.
-func NewCredentialStore() *CredentialStore {
-	return &CredentialStore{
-		principals: make(map[string]map[string]struct{}),
-	}
-}
-
-// SetCAKey parses and stores the CA public key from authorized_keys-format data.
-func (s *CredentialStore) SetCAKey(authorizedKeyData string) error {
-	key, _, _, _, err := ssh.ParseAuthorizedKey([]byte(authorizedKeyData))
-	if err != nil {
-		return fmt.Errorf("parse CA key: %w", err)
-	}
-	s.mu.Lock()
-	s.caKey = key
-	s.mu.Unlock()
-	return nil
-}
-
-// AddPrincipals records username and niceId as allowed principals for username.
-// Both values are stored; either can appear in the certificate's ValidPrincipals
-// field to satisfy the standard cert-auth principal check.
-func (s *CredentialStore) AddPrincipals(username, niceId string) {
-	username = strings.TrimSpace(username)
-	niceId = strings.TrimSpace(niceId)
-	if username == "" {
-		return
-	}
-	s.mu.Lock()
-	defer s.mu.Unlock()
-	if s.principals[username] == nil {
-		s.principals[username] = make(map[string]struct{})
-	}
-	s.principals[username][username] = struct{}{}
-	if niceId != "" {
-		s.principals[username][niceId] = struct{}{}
-	}
-}
-
-// get returns the CA key and the principal set for username under a read lock.
-func (s *CredentialStore) get(username string) (ssh.PublicKey, map[string]struct{}) {
-	s.mu.RLock()
-	defer s.mu.RUnlock()
-	return s.caKey, s.principals[username]
-}
-
-// ServerConfig holds configuration for the native SSH server.
-type ServerConfig struct {
-	// ListenAddr is the TCP address to listen on. Defaults to ":2222".
-	ListenAddr string
-	// Credentials provides in-memory CA key and per-user principals.
-	// Updates to the store are reflected immediately for new connections.
-	// If nil or the store has no CA key set, all connections are rejected.
-	Credentials *CredentialStore
-}
-
-// Server is a simple SSH server that authenticates clients via SSH certificate
-// auth only. Certificates must be signed by the configured CA and the
-// connecting username must appear in both the certificate's principal list and
-// the local principals file.
-type Server struct {
-	cfg ServerConfig
-}
-
-// NewServer creates a new Server. The ListenAddr defaults to ":2222" when empty.
-func NewServer(cfg ServerConfig) *Server {
-	if cfg.ListenAddr == "" {
-		cfg.ListenAddr = ":2222"
-	}
-	return &Server{cfg: cfg}
-}
-
-// buildSSHConfig builds the ssh.ServerConfig with multi-method authentication:
-//  1. Public key: host ~/.ssh/authorized_keys, then CA certificate.
-//  2. Password: system PAM stack (Linux only).
-func (s *Server) buildSSHConfig() (*ssh.ServerConfig, error) {
-	hostSigner, err := generateHostKey()
-	if err != nil {
-		return nil, fmt.Errorf("host key: %w", err)
-	}
-	cfg := &ssh.ServerConfig{
-		PublicKeyCallback: makePublicKeyCallback(s.cfg.Credentials),
-		PasswordCallback:  makePasswordCallback(),
-	}
-	cfg.AddHostKey(hostSigner)
-	return cfg, nil
-}
-
-// Serve accepts connections on ln and handles them. It returns when ln is
-// closed or a non-temporary Accept error occurs.
-func (s *Server) Serve(ln net.Listener) error {
-	sshCfg, err := s.buildSSHConfig()
-	if err != nil {
-		return err
-	}
-	logger.Debug("nativessh: server listening on %s", ln.Addr())
-	for {
-		conn, err := ln.Accept()
-		if err != nil {
-			return err
-		}
-		go s.handleConn(conn, sshCfg)
-	}
-}
-
-// ListenAndServe starts the SSH server on the host network and blocks until
-// the listener is closed.
-func (s *Server) ListenAndServe() error {
-	ln, err := net.Listen("tcp", s.cfg.ListenAddr)
-	if err != nil {
-		return fmt.Errorf("listen %s: %w", s.cfg.ListenAddr, err)
-	}
-	defer ln.Close()
-	return s.Serve(ln)
-}
-
-func (s *Server) handleConn(conn net.Conn, cfg *ssh.ServerConfig) {
-	defer conn.Close()
-	sshConn, chans, reqs, err := ssh.NewServerConn(conn, cfg)
-	if err != nil {
-		logger.Debug("nativessh: handshake failed from %s: %v", conn.RemoteAddr(), err)
-		return
-	}
-	defer sshConn.Close()
-	logger.Debug("nativessh: connection from %s user=%s", conn.RemoteAddr(), sshConn.User())
-
-	go ssh.DiscardRequests(reqs)
-
-	for newChan := range chans {
-		if newChan.ChannelType() != "session" {
-			_ = newChan.Reject(ssh.UnknownChannelType, "unknown channel type")
-			continue
-		}
-		ch, requests, err := newChan.Accept()
-		if err != nil {
-			logger.Debug("nativessh: channel accept error: %v", err)
-			return
-		}
-		go s.handleSession(ch, requests, sshConn.User())
-	}
-}
-
-// handleSession drives a single SSH session channel. It waits for a pty-req
-// followed by a shell request and then bridges the PTY to the channel.
-func (s *Server) handleSession(ch ssh.Channel, requests <-chan *ssh.Request, username string) {
-	defer ch.Close()
-
-	var (
-		sess    *PTYSession
-		started bool
-	)
-
-	for req := range requests {
-		switch req.Type {
-		case "pty-req":
-			var err error
-			if sess == nil {
-				sess, err = NewPTYSessionAs(username)
-				if err != nil {
-					logger.Debug("nativessh: PTY start error: %v", err)
-					if req.WantReply {
-						_ = req.Reply(false, nil)
-					}
-					return
-				}
-			}
-			cols, rows := parsePTYReq(req.Payload)
-			_ = sess.Resize(cols, rows)
-			if req.WantReply {
-				_ = req.Reply(true, nil)
-			}
-
-		case "shell":
-			if req.WantReply {
-				_ = req.Reply(true, nil)
-			}
-			if started || sess == nil {
-				continue
-			}
-			started = true
-			// PTY output → SSH channel.
-			go func() {
-				_, _ = io.Copy(ch, sess)
-				// Notify the client of the shell's exit status so it can
-				// disconnect cleanly instead of requiring a manual disconnect.
-				exitCode := sess.ExitCode()
-				exitStatusPayload := ssh.Marshal(struct{ Status uint32 }{uint32(exitCode)})
-				_, _ = ch.SendRequest("exit-status", false, exitStatusPayload)
-				_ = ch.CloseWrite()
-				sess.Close() //nolint:errcheck
-				// Close the channel so the ssh library closes the requests
-				// channel, which unblocks the for-range loop in handleSession
-				// and allows the deferred ch.Close() to run. Without this,
-				// handleSession blocks forever waiting for requests to drain.
-				_ = ch.Close()
-			}()
-			// SSH channel input → PTY stdin.
-			go func() {
-				_, _ = io.Copy(sess, ch)
-			}()
-
-		case "exec":
-			if req.WantReply {
-				_ = req.Reply(true, nil)
-			}
-			cmd := parseExecPayload(req.Payload)
-			go s.runExecAs(ch, username, cmd)
-			// Drain remaining requests; the goroutine owns the channel now.
-			go ssh.DiscardRequests(requests)
-			return
-
-		case "window-change":
-			if sess != nil {
-				cols, rows := parseWindowChange(req.Payload)
-				_ = sess.Resize(cols, rows)
-			}
-			if req.WantReply {
-				_ = req.Reply(true, nil)
-			}
-
-		default:
-			if req.WantReply {
-				_ = req.Reply(false, nil)
-			}
-		}
-	}
-
-	if sess != nil && !started {
-		sess.Close() //nolint:errcheck
-	}
-}
-
-// runExecAs runs command as username, wiring stdin/stdout/stderr directly to
-// the SSH channel (no PTY). This supports scp, rsync, and plain exec requests.
-func (s *Server) runExecAs(ch ssh.Channel, username, command string) {
-	defer ch.Close()
-
-	u, err := user.Lookup(username)
-	if err != nil {
-		logger.Debug("nativessh: exec user lookup %q: %v", username, err)
-		sendExitStatus(ch, 1)
-		return
-	}
-
-	uid, err := strconv.ParseUint(u.Uid, 10, 32)
-	if err != nil {
-		logger.Debug("nativessh: exec parse uid for %q: %v", username, err)
-		sendExitStatus(ch, 1)
-		return
-	}
-	gid, err := strconv.ParseUint(u.Gid, 10, 32)
-	if err != nil {
-		logger.Debug("nativessh: exec parse gid for %q: %v", username, err)
-		sendExitStatus(ch, 1)
-		return
-	}
-
-	groupIDs, _ := u.GroupIds()
-	var groups []uint32
-	for _, g := range groupIDs {
-		gval, err := strconv.ParseUint(g, 10, 32)
-		if err == nil {
-			groups = append(groups, uint32(gval))
-		}
-	}
-
-	homeDir := u.HomeDir
-	if _, err := os.Stat(homeDir); err != nil {
-		homeDir = "/"
-	}
-
-	cmd := exec.Command("/bin/sh", "-c", command)
-	cmd.Env = []string{
-		"HOME=" + u.HomeDir,
-		"USER=" + username,
-		"LOGNAME=" + username,
-		"PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin",
-	}
-	cmd.Dir = homeDir
-	cmd.SysProcAttr = &syscall.SysProcAttr{
-		Credential: &syscall.Credential{
-			Uid:    uint32(uid),
-			Gid:    uint32(gid),
-			Groups: groups,
-		},
-	}
-	cmd.Stdin = ch
-	cmd.Stdout = ch
-	cmd.Stderr = ch.Stderr()
-
-	exitCode := 0
-	if err := cmd.Run(); err != nil {
-		var exitErr *exec.ExitError
-		if errors.As(err, &exitErr) {
-			exitCode = exitErr.ExitCode()
-		} else {
-			exitCode = 1
-		}
-		logger.Debug("nativessh: exec %q as %q exited: %v", command, username, err)
-	}
-
-	sendExitStatus(ch, exitCode)
-	_ = ch.CloseWrite()
-}
-
-// sendExitStatus sends an SSH exit-status request on ch.
-func sendExitStatus(ch ssh.Channel, code int) {
-	payload := ssh.Marshal(struct{ Status uint32 }{uint32(code)})
-	_, _ = ch.SendRequest("exit-status", false, payload)
-}
-
-// parseExecPayload decodes the command string from an SSH exec request payload.
-func parseExecPayload(payload []byte) string {
-	var msg struct{ Command string }
-	if err := ssh.Unmarshal(payload, &msg); err != nil {
-		return ""
-	}
-	return msg.Command
-}
-
-// makePublicKeyCallback returns a PublicKeyCallback that tries, in order:
-//  1. Host authorized_keys  – matches any key in the OS user's
-//     ~/.ssh/authorized_keys file.
-//  2. CA certificate        – validates an SSH certificate signed by the
-//     configured CA and checks that the user appears in the principals map.
-//
-// store may be nil or empty; those paths are simply skipped.
-func makePublicKeyCallback(store *CredentialStore) func(ssh.ConnMetadata, ssh.PublicKey) (*ssh.Permissions, error) {
-	return func(meta ssh.ConnMetadata, key ssh.PublicKey) (*ssh.Permissions, error) {
-		// 1. Host authorized_keys.
-		if CheckAuthorizedKeys(meta.User(), key) {
-			logger.Debug("nativessh: authorized_keys auth for user %q", meta.User())
-			return &ssh.Permissions{}, nil
-		}
-
-		// 2. CA certificate.
-		if store != nil {
-			caKey, userPrincipals := store.get(meta.User())
-			if caKey != nil {
-				checker := &ssh.CertChecker{
-					IsUserAuthority: func(auth ssh.PublicKey) bool {
-						return ssh.FingerprintSHA256(auth) == ssh.FingerprintSHA256(caKey)
-					},
-				}
-
-				if len(userPrincipals) == 0 {
-					return nil, fmt.Errorf("user %q not in allowed principals list", meta.User())
-				}
-
-				var lastErr error
-				for principal := range userPrincipals {
-					perms, err := checker.Authenticate(connMetaWithUser{ConnMetadata: meta, user: principal}, key)
-					if err == nil {
-						logger.Debug("nativessh: CA cert auth for user %q principal=%q", meta.User(), principal)
-						return perms, nil
-					}
-					lastErr = err
-				}
-
-				if lastErr != nil {
-					logger.Debug("nativessh: CA cert rejected for user %q: %v", meta.User(), lastErr)
-				}
-			}
-		}
-
-		return nil, fmt.Errorf("public key not authorized for user %q", meta.User())
-	}
-}
-
-// makePasswordCallback returns a PasswordCallback that validates the supplied
-// password via the host OS PAM stack.  On non-Linux platforms this always
-// fails (see pam_other.go).
-func makePasswordCallback() func(ssh.ConnMetadata, []byte) (*ssh.Permissions, error) {
-	return func(meta ssh.ConnMetadata, password []byte) (*ssh.Permissions, error) {
-		if err := VerifySystemPassword(meta.User(), string(password)); err != nil {
-			// Return a generic message to the client; log the real reason.
-			logger.Debug("nativessh: password auth failed for user %q: %v", meta.User(), err)
-			return nil, fmt.Errorf("permission denied")
-		}
-		logger.Debug("nativessh: password auth for user %q", meta.User())
-		return &ssh.Permissions{}, nil
-	}
-}
-
-// generateHostKey generates a fresh ephemeral Ed25519 host key in memory.
-// A new key is created on every server start; nothing is written to disk.
-func generateHostKey() (ssh.Signer, error) {
-	_, priv, err := ed25519.GenerateKey(rand.Reader)
-	if err != nil {
-		return nil, fmt.Errorf("generate host key: %w", err)
-	}
-	logger.Debug("nativessh: generated ephemeral Ed25519 host key")
-	return ssh.NewSignerFromKey(priv)
-}
-
-// ptyRequestMsg mirrors the SSH wire format for pty-req (RFC 4254 §6.2).
-type ptyRequestMsg struct {
-	Term     string
-	Columns  uint32
-	Rows     uint32
-	Width    uint32
-	Height   uint32
-	Modelist string
-}
-
-func parsePTYReq(payload []byte) (cols, rows uint16) {
-	var req ptyRequestMsg
-	if err := ssh.Unmarshal(payload, &req); err != nil {
-		return 80, 24
-	}
-	return uint16(req.Columns), uint16(req.Rows)
-}
-
-// windowChangeMsg mirrors the SSH wire format for window-change (RFC 4254 §6.7).
-type windowChangeMsg struct {
-	Columns uint32
-	Rows    uint32
-	Width   uint32
-	Height  uint32
-}
-
-func parseWindowChange(payload []byte) (cols, rows uint16) {
-	var msg windowChangeMsg
-	if err := ssh.Unmarshal(payload, &msg); err != nil {
-		return 80, 24
-	}
-	return uint16(msg.Columns), uint16(msg.Rows)
-}

nativessh/server_windows.go

@@ -1,64 +0,0 @@
-//go:build windows
-
-package nativessh
-
-import (
-	"errors"
-	"log"
-	"net"
-	"sync"
-
-	"golang.org/x/crypto/ssh"
-)
-
-// CredentialStore is a stub on Windows. Native SSH is not supported on Windows.
-type CredentialStore struct {
-	mu         sync.RWMutex
-	principals map[string]map[string]struct{}
-}
-
-// NewCredentialStore returns an empty CredentialStore stub.
-// Native SSH is not supported on Windows; a warning is logged.
-func NewCredentialStore() *CredentialStore {
-	log.Println("WARNING: native SSH is not supported on Windows and will be disabled")
-	return &CredentialStore{
-		principals: make(map[string]map[string]struct{}),
-	}
-}
-
-// SetCAKey is a no-op stub on Windows.
-func (s *CredentialStore) SetCAKey(_ string) error {
-	return errors.New("native SSH not supported on Windows")
-}
-
-// AddPrincipals is a no-op stub on Windows.
-func (s *CredentialStore) AddPrincipals(_, _ string) {}
-
-// get returns nil CA key and empty principals on Windows.
-func (s *CredentialStore) get(_ string) (ssh.PublicKey, map[string]struct{}) {
-	return nil, nil
-}
-
-// ServerConfig holds configuration for the native SSH server (stub on Windows).
-type ServerConfig struct {
-	ListenAddr  string
-	Credentials *CredentialStore
-}
-
-// Server is a stub on Windows.
-type Server struct{}
-
-// NewServer returns a stub Server and logs a warning.
-func NewServer(cfg ServerConfig) *Server {
-	return &Server{}
-}
-
-// ListenAndServe always returns an error on Windows.
-func (s *Server) ListenAndServe() error {
-	return errors.New("native SSH not supported on Windows")
-}
-
-// Serve always returns an error on Windows.
-func (s *Server) Serve(_ net.Listener) error {
-	return errors.New("native SSH not supported on Windows")
-}

netstack2/access_log.go

@@ -1,514 +0,0 @@
-package netstack2
-
-import (
-	"bytes"
-	"compress/zlib"
-	"crypto/rand"
-	"encoding/base64"
-	"encoding/hex"
-	"encoding/json"
-	"net"
-	"sort"
-	"sync"
-	"time"
-
-	"github.com/fosrl/newt/logger"
-)
-
-const (
-	// flushInterval is how often the access logger flushes completed sessions to the server
-	flushInterval = 60 * time.Second
-
-	// maxBufferedSessions is the max number of completed sessions to buffer before forcing a flush
-	maxBufferedSessions = 100
-
-	// sessionGapThreshold is the maximum gap between the end of one connection
-	// and the start of the next for them to be considered part of the same session.
-	// If the gap exceeds this, a new consolidated session is created.
-	sessionGapThreshold = 5 * time.Second
-
-	// minConnectionsToConsolidate is the minimum number of connections in a group
-	// before we bother consolidating. Groups smaller than this are sent as-is.
-	minConnectionsToConsolidate = 2
-)
-
-// SendFunc is a callback that sends compressed access log data to the server.
-// The data is a base64-encoded zlib-compressed JSON array of AccessSession objects.
-type SendFunc func(data string) error
-
-// AccessSession represents a tracked access session through the proxy
-type AccessSession struct {
-	SessionID       string    `json:"sessionId"`
-	ResourceID      int       `json:"resourceId"`
-	SourceAddr      string    `json:"sourceAddr"`
-	DestAddr        string    `json:"destAddr"`
-	Protocol        string    `json:"protocol"`
-	StartedAt       time.Time `json:"startedAt"`
-	EndedAt         time.Time `json:"endedAt,omitempty"`
-	BytesTx         int64     `json:"bytesTx"`
-	BytesRx         int64     `json:"bytesRx"`
-	ConnectionCount int       `json:"connectionCount,omitempty"` // number of raw connections merged into this session (0 or 1 = single)
-}
-
-// udpSessionKey identifies a unique UDP "session" by src -> dst
-type udpSessionKey struct {
-	srcAddr  string
-	dstAddr  string
-	protocol string
-}
-
-// consolidationKey groups connections that may be part of the same logical session.
-// Source port is intentionally excluded so that many ephemeral-port connections
-// from the same source IP to the same destination are grouped together.
-type consolidationKey struct {
-	sourceIP   string // IP only, no port
-	destAddr   string // full host:port of the destination
-	protocol   string
-	resourceID int
-}
-
-// AccessLogger tracks access sessions for resources and periodically
-// flushes completed sessions to the server via a configurable SendFunc.
-type AccessLogger struct {
-	mu                sync.Mutex
-	sessions          map[string]*AccessSession       // active sessions: sessionID -> session
-	udpSessions       map[udpSessionKey]*AccessSession // active UDP sessions for dedup
-	completedSessions []*AccessSession                 // completed sessions waiting to be flushed
-	udpTimeout        time.Duration
-	sendFn            SendFunc
-	stopCh            chan struct{}
-	flushDone         chan struct{} // closed after the flush goroutine exits
-}
-
-// NewAccessLogger creates a new access logger.
-// udpTimeout controls how long a UDP session is kept alive without traffic before being ended.
-func NewAccessLogger(udpTimeout time.Duration) *AccessLogger {
-	al := &AccessLogger{
-		sessions:          make(map[string]*AccessSession),
-		udpSessions:       make(map[udpSessionKey]*AccessSession),
-		completedSessions: make([]*AccessSession, 0),
-		udpTimeout:        udpTimeout,
-		stopCh:            make(chan struct{}),
-		flushDone:         make(chan struct{}),
-	}
-	go al.backgroundLoop()
-	return al
-}
-
-// SetSendFunc sets the callback used to send compressed access log batches
-// to the server. This can be called after construction once the websocket
-// client is available.
-func (al *AccessLogger) SetSendFunc(fn SendFunc) {
-	al.mu.Lock()
-	defer al.mu.Unlock()
-	al.sendFn = fn
-}
-
-// generateSessionID creates a random session identifier
-func generateSessionID() string {
-	b := make([]byte, 8)
-	rand.Read(b)
-	return hex.EncodeToString(b)
-}
-
-// StartTCPSession logs the start of a TCP session and returns a session ID.
-func (al *AccessLogger) StartTCPSession(resourceID int, srcAddr, dstAddr string) string {
-	sessionID := generateSessionID()
-	now := time.Now()
-
-	session := &AccessSession{
-		SessionID:  sessionID,
-		ResourceID: resourceID,
-		SourceAddr: srcAddr,
-		DestAddr:   dstAddr,
-		Protocol:   "tcp",
-		StartedAt:  now,
-	}
-
-	al.mu.Lock()
-	al.sessions[sessionID] = session
-	al.mu.Unlock()
-
-	logger.Info("ACCESS START session=%s resource=%d proto=tcp src=%s dst=%s time=%s",
-		sessionID, resourceID, srcAddr, dstAddr, now.Format(time.RFC3339))
-
-	return sessionID
-}
-
-// EndTCPSession logs the end of a TCP session and queues it for sending.
-func (al *AccessLogger) EndTCPSession(sessionID string) {
-	now := time.Now()
-
-	al.mu.Lock()
-	session, ok := al.sessions[sessionID]
-	if ok {
-		session.EndedAt = now
-		delete(al.sessions, sessionID)
-		al.completedSessions = append(al.completedSessions, session)
-	}
-	shouldFlush := len(al.completedSessions) >= maxBufferedSessions
-	al.mu.Unlock()
-
-	if ok {
-		duration := now.Sub(session.StartedAt)
-		logger.Info("ACCESS END session=%s resource=%d proto=tcp src=%s dst=%s started=%s ended=%s duration=%s",
-			sessionID, session.ResourceID, session.SourceAddr, session.DestAddr,
-			session.StartedAt.Format(time.RFC3339), now.Format(time.RFC3339), duration)
-	}
-
-	if shouldFlush {
-		al.flush()
-	}
-}
-
-// TrackUDPSession starts or returns an existing UDP session. Returns the session ID.
-func (al *AccessLogger) TrackUDPSession(resourceID int, srcAddr, dstAddr string) string {
-	key := udpSessionKey{
-		srcAddr:  srcAddr,
-		dstAddr:  dstAddr,
-		protocol: "udp",
-	}
-
-	al.mu.Lock()
-	defer al.mu.Unlock()
-
-	if existing, ok := al.udpSessions[key]; ok {
-		return existing.SessionID
-	}
-
-	sessionID := generateSessionID()
-	now := time.Now()
-
-	session := &AccessSession{
-		SessionID:  sessionID,
-		ResourceID: resourceID,
-		SourceAddr: srcAddr,
-		DestAddr:   dstAddr,
-		Protocol:   "udp",
-		StartedAt:  now,
-	}
-
-	al.sessions[sessionID] = session
-	al.udpSessions[key] = session
-
-	logger.Info("ACCESS START session=%s resource=%d proto=udp src=%s dst=%s time=%s",
-		sessionID, resourceID, srcAddr, dstAddr, now.Format(time.RFC3339))
-
-	return sessionID
-}
-
-// EndUDPSession ends a UDP session and queues it for sending.
-func (al *AccessLogger) EndUDPSession(sessionID string) {
-	now := time.Now()
-
-	al.mu.Lock()
-	session, ok := al.sessions[sessionID]
-	if ok {
-		session.EndedAt = now
-		delete(al.sessions, sessionID)
-		key := udpSessionKey{
-			srcAddr:  session.SourceAddr,
-			dstAddr:  session.DestAddr,
-			protocol: "udp",
-		}
-		delete(al.udpSessions, key)
-		al.completedSessions = append(al.completedSessions, session)
-	}
-	shouldFlush := len(al.completedSessions) >= maxBufferedSessions
-	al.mu.Unlock()
-
-	if ok {
-		duration := now.Sub(session.StartedAt)
-		logger.Info("ACCESS END session=%s resource=%d proto=udp src=%s dst=%s started=%s ended=%s duration=%s",
-			sessionID, session.ResourceID, session.SourceAddr, session.DestAddr,
-			session.StartedAt.Format(time.RFC3339), now.Format(time.RFC3339), duration)
-	}
-
-	if shouldFlush {
-		al.flush()
-	}
-}
-
-// backgroundLoop handles periodic flushing and stale session reaping.
-func (al *AccessLogger) backgroundLoop() {
-	defer close(al.flushDone)
-
-	flushTicker := time.NewTicker(flushInterval)
-	defer flushTicker.Stop()
-
-	reapTicker := time.NewTicker(30 * time.Second)
-	defer reapTicker.Stop()
-
-	for {
-		select {
-		case <-al.stopCh:
-			return
-		case <-flushTicker.C:
-			al.flush()
-		case <-reapTicker.C:
-			al.reapStaleSessions()
-		}
-	}
-}
-
-// reapStaleSessions cleans up UDP sessions that were not properly ended.
-func (al *AccessLogger) reapStaleSessions() {
-	al.mu.Lock()
-	defer al.mu.Unlock()
-
-	staleThreshold := time.Now().Add(-5 * time.Minute)
-
-	for key, session := range al.udpSessions {
-		if session.StartedAt.Before(staleThreshold) && session.EndedAt.IsZero() {
-			now := time.Now()
-			session.EndedAt = now
-			duration := now.Sub(session.StartedAt)
-			logger.Info("ACCESS END (reaped) session=%s resource=%d proto=udp src=%s dst=%s started=%s ended=%s duration=%s",
-				session.SessionID, session.ResourceID, session.SourceAddr, session.DestAddr,
-				session.StartedAt.Format(time.RFC3339), now.Format(time.RFC3339), duration)
-			al.completedSessions = append(al.completedSessions, session)
-			delete(al.sessions, session.SessionID)
-			delete(al.udpSessions, key)
-		}
-	}
-}
-
-// extractIP strips the port from an address string and returns just the IP.
-// If the address has no port component it is returned as-is.
-func extractIP(addr string) string {
-	host, _, err := net.SplitHostPort(addr)
-	if err != nil {
-		// Might already be a bare IP
-		return addr
-	}
-	return host
-}
-
-// consolidateSessions takes a slice of completed sessions and merges bursts of
-// short-lived connections from the same source IP to the same destination into
-// single higher-level session entries.
-//
-// The algorithm:
-//  1. Group sessions by (sourceIP, destAddr, protocol, resourceID).
-//  2. Within each group, sort by StartedAt.
-//  3. Walk through the sorted list and merge consecutive sessions whose gap
-//     (previous EndedAt → next StartedAt) is ≤ sessionGapThreshold.
-//  4. For merged sessions the earliest StartedAt and latest EndedAt are kept,
-//     bytes are summed, and ConnectionCount records how many raw connections
-//     were folded in. If the merged connections used more than one source port,
-//     SourceAddr is set to just the IP (port omitted).
-//  5. Groups with fewer than minConnectionsToConsolidate members are passed
-//     through unmodified.
-func consolidateSessions(sessions []*AccessSession) []*AccessSession {
-	if len(sessions) <= 1 {
-		return sessions
-	}
-
-	// Group sessions by consolidation key
-	groups := make(map[consolidationKey][]*AccessSession)
-	for _, s := range sessions {
-		key := consolidationKey{
-			sourceIP:   extractIP(s.SourceAddr),
-			destAddr:   s.DestAddr,
-			protocol:   s.Protocol,
-			resourceID: s.ResourceID,
-		}
-		groups[key] = append(groups[key], s)
-	}
-
-	result := make([]*AccessSession, 0, len(sessions))
-
-	for key, group := range groups {
-		// Small groups don't need consolidation
-		if len(group) < minConnectionsToConsolidate {
-			result = append(result, group...)
-			continue
-		}
-
-		// Sort the group by start time so we can detect gaps
-		sort.Slice(group, func(i, j int) bool {
-			return group[i].StartedAt.Before(group[j].StartedAt)
-		})
-
-		// Walk through and merge runs that are within the gap threshold
-		var merged []*AccessSession
-		cur := cloneSession(group[0])
-		cur.ConnectionCount = 1
-		sourcePorts := make(map[string]struct{})
-		sourcePorts[cur.SourceAddr] = struct{}{}
-
-		for i := 1; i < len(group); i++ {
-			s := group[i]
-
-			// Determine the gap: from the latest end time we've seen so far to the
-			// start of the next connection.
-			gapRef := cur.EndedAt
-			if gapRef.IsZero() {
-				gapRef = cur.StartedAt
-			}
-			gap := s.StartedAt.Sub(gapRef)
-
-			if gap <= sessionGapThreshold {
-				// Merge into the current consolidated session
-				cur.ConnectionCount++
-				cur.BytesTx += s.BytesTx
-				cur.BytesRx += s.BytesRx
-				sourcePorts[s.SourceAddr] = struct{}{}
-
-				// Extend EndedAt to the latest time
-				endTime := s.EndedAt
-				if endTime.IsZero() {
-					endTime = s.StartedAt
-				}
-				if endTime.After(cur.EndedAt) {
-					cur.EndedAt = endTime
-				}
-			} else {
-				// Gap exceeded — finalize the current session and start a new one
-				finalizeMergedSourceAddr(cur, key.sourceIP, sourcePorts)
-				merged = append(merged, cur)
-
-				cur = cloneSession(s)
-				cur.ConnectionCount = 1
-				sourcePorts = make(map[string]struct{})
-				sourcePorts[s.SourceAddr] = struct{}{}
-			}
-		}
-
-		// Finalize the last accumulated session
-		finalizeMergedSourceAddr(cur, key.sourceIP, sourcePorts)
-		merged = append(merged, cur)
-
-		result = append(result, merged...)
-	}
-
-	return result
-}
-
-// cloneSession creates a shallow copy of an AccessSession.
-func cloneSession(s *AccessSession) *AccessSession {
-	cp := *s
-	return &cp
-}
-
-// finalizeMergedSourceAddr sets the SourceAddr on a consolidated session.
-// If multiple distinct source addresses (ports) were seen, the port is
-// stripped and only the IP is kept so the log isn't misleading.
-func finalizeMergedSourceAddr(s *AccessSession, sourceIP string, ports map[string]struct{}) {
-	if len(ports) > 1 {
-		// Multiple source ports — just report the IP
-		s.SourceAddr = sourceIP
-	}
-	// Otherwise keep the original SourceAddr which already has ip:port
-}
-
-// flush drains the completed sessions buffer, consolidates bursts of
-// short-lived connections, compresses with zlib, and sends via the SendFunc.
-func (al *AccessLogger) flush() {
-	al.mu.Lock()
-	if len(al.completedSessions) == 0 {
-		al.mu.Unlock()
-		return
-	}
-	batch := al.completedSessions
-	al.completedSessions = make([]*AccessSession, 0)
-	sendFn := al.sendFn
-	al.mu.Unlock()
-
-	if sendFn == nil {
-		logger.Debug("Access logger: no send function configured, discarding %d sessions", len(batch))
-		return
-	}
-
-	// Consolidate bursts of short-lived connections into higher-level sessions
-	originalCount := len(batch)
-	batch = consolidateSessions(batch)
-	if len(batch) != originalCount {
-		logger.Info("Access logger: consolidated %d raw connections into %d sessions", originalCount, len(batch))
-	}
-
-	compressed, err := compressSessions(batch)
-	if err != nil {
-		logger.Error("Access logger: failed to compress %d sessions: %v", len(batch), err)
-		return
-	}
-
-	if err := sendFn(compressed); err != nil {
-		logger.Error("Access logger: failed to send %d sessions: %v", len(batch), err)
-		// Re-queue the batch so we don't lose data
-		al.mu.Lock()
-		al.completedSessions = append(batch, al.completedSessions...)
-		// Cap re-queued data to prevent unbounded growth if server is unreachable
-		if len(al.completedSessions) > maxBufferedSessions*5 {
-			dropped := len(al.completedSessions) - maxBufferedSessions*5
-			al.completedSessions = al.completedSessions[:maxBufferedSessions*5]
-			logger.Warn("Access logger: buffer overflow, dropped %d oldest sessions", dropped)
-		}
-		al.mu.Unlock()
-		return
-	}
-
-	logger.Info("Access logger: sent %d sessions to server", len(batch))
-}
-
-// compressSessions JSON-encodes the sessions, compresses with zlib, and returns
-// a base64-encoded string suitable for embedding in a JSON message.
-func compressSessions(sessions []*AccessSession) (string, error) {
-	jsonData, err := json.Marshal(sessions)
-	if err != nil {
-		return "", err
-	}
-
-	var buf bytes.Buffer
-	w, err := zlib.NewWriterLevel(&buf, zlib.BestCompression)
-	if err != nil {
-		return "", err
-	}
-	if _, err := w.Write(jsonData); err != nil {
-		w.Close()
-		return "", err
-	}
-	if err := w.Close(); err != nil {
-		return "", err
-	}
-
-	return base64.StdEncoding.EncodeToString(buf.Bytes()), nil
-}
-
-// Close shuts down the background loop, ends all active sessions,
-// and performs one final flush to send everything to the server.
-func (al *AccessLogger) Close() {
-	// Signal the background loop to stop
-	select {
-	case <-al.stopCh:
-		// Already closed
-		return
-	default:
-		close(al.stopCh)
-	}
-
-	// Wait for the background loop to exit so we don't race on flush
-	<-al.flushDone
-
-	al.mu.Lock()
-	now := time.Now()
-
-	// End all active sessions and move them to the completed buffer
-	for _, session := range al.sessions {
-		if session.EndedAt.IsZero() {
-			session.EndedAt = now
-			duration := now.Sub(session.StartedAt)
-			logger.Info("ACCESS END (shutdown) session=%s resource=%d proto=%s src=%s dst=%s started=%s ended=%s duration=%s",
-				session.SessionID, session.ResourceID, session.Protocol, session.SourceAddr, session.DestAddr,
-				session.StartedAt.Format(time.RFC3339), now.Format(time.RFC3339), duration)
-			al.completedSessions = append(al.completedSessions, session)
-		}
-	}
-
-	al.sessions = make(map[string]*AccessSession)
-	al.udpSessions = make(map[udpSessionKey]*AccessSession)
-	al.mu.Unlock()
-
-	// Final flush to send all remaining sessions to the server
-	al.flush()
-}

netstack2/access_log_test.go

@@ -1,811 +0,0 @@
-package netstack2
-
-import (
-	"testing"
-	"time"
-)
-
-func TestExtractIP(t *testing.T) {
-	tests := []struct {
-		name     string
-		addr     string
-		expected string
-	}{
-		{"ipv4 with port", "192.168.1.1:12345", "192.168.1.1"},
-		{"ipv4 without port", "192.168.1.1", "192.168.1.1"},
-		{"ipv6 with port", "[::1]:12345", "::1"},
-		{"ipv6 without port", "::1", "::1"},
-		{"empty string", "", ""},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			result := extractIP(tt.addr)
-			if result != tt.expected {
-				t.Errorf("extractIP(%q) = %q, want %q", tt.addr, result, tt.expected)
-			}
-		})
-	}
-}
-
-func TestConsolidateSessions_Empty(t *testing.T) {
-	result := consolidateSessions(nil)
-	if result != nil {
-		t.Errorf("expected nil, got %v", result)
-	}
-
-	result = consolidateSessions([]*AccessSession{})
-	if len(result) != 0 {
-		t.Errorf("expected empty slice, got %d items", len(result))
-	}
-}
-
-func TestConsolidateSessions_SingleSession(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "abc123",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(1 * time.Second),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 1 {
-		t.Fatalf("expected 1 session, got %d", len(result))
-	}
-	if result[0].SourceAddr != "10.0.0.1:5000" {
-		t.Errorf("expected source addr preserved, got %q", result[0].SourceAddr)
-	}
-}
-
-func TestConsolidateSessions_MergesBurstFromSameSourceIP(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-			BytesTx:    100,
-			BytesRx:    200,
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(300 * time.Millisecond),
-			BytesTx:    150,
-			BytesRx:    250,
-		},
-		{
-			SessionID:  "s3",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5002",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(400 * time.Millisecond),
-			EndedAt:    now.Add(500 * time.Millisecond),
-			BytesTx:    50,
-			BytesRx:    75,
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 1 {
-		t.Fatalf("expected 1 consolidated session, got %d", len(result))
-	}
-
-	s := result[0]
-	if s.ConnectionCount != 3 {
-		t.Errorf("expected ConnectionCount=3, got %d", s.ConnectionCount)
-	}
-	if s.SourceAddr != "10.0.0.1" {
-		t.Errorf("expected source addr to be IP only (multiple ports), got %q", s.SourceAddr)
-	}
-	if s.DestAddr != "192.168.1.100:443" {
-		t.Errorf("expected dest addr preserved, got %q", s.DestAddr)
-	}
-	if s.StartedAt != now {
-		t.Errorf("expected StartedAt to be earliest time")
-	}
-	if s.EndedAt != now.Add(500*time.Millisecond) {
-		t.Errorf("expected EndedAt to be latest time")
-	}
-	expectedTx := int64(300)
-	expectedRx := int64(525)
-	if s.BytesTx != expectedTx {
-		t.Errorf("expected BytesTx=%d, got %d", expectedTx, s.BytesTx)
-	}
-	if s.BytesRx != expectedRx {
-		t.Errorf("expected BytesRx=%d, got %d", expectedRx, s.BytesRx)
-	}
-}
-
-func TestConsolidateSessions_SameSourcePortPreserved(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(300 * time.Millisecond),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 1 {
-		t.Fatalf("expected 1 session, got %d", len(result))
-	}
-	if result[0].SourceAddr != "10.0.0.1:5000" {
-		t.Errorf("expected source addr with port preserved when all ports are the same, got %q", result[0].SourceAddr)
-	}
-	if result[0].ConnectionCount != 2 {
-		t.Errorf("expected ConnectionCount=2, got %d", result[0].ConnectionCount)
-	}
-}
-
-func TestConsolidateSessions_GapSplitsSessions(t *testing.T) {
-	now := time.Now()
-
-	// First burst
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(300 * time.Millisecond),
-		},
-		// Big gap here (10 seconds)
-		{
-			SessionID:  "s3",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5002",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(10 * time.Second),
-			EndedAt:    now.Add(10*time.Second + 100*time.Millisecond),
-		},
-		{
-			SessionID:  "s4",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5003",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(10*time.Second + 200*time.Millisecond),
-			EndedAt:    now.Add(10*time.Second + 300*time.Millisecond),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 2 {
-		t.Fatalf("expected 2 consolidated sessions (gap split), got %d", len(result))
-	}
-
-	// Find the sessions by their start time
-	var first, second *AccessSession
-	for _, s := range result {
-		if s.StartedAt.Equal(now) {
-			first = s
-		} else {
-			second = s
-		}
-	}
-
-	if first == nil || second == nil {
-		t.Fatal("could not find both consolidated sessions")
-	}
-
-	if first.ConnectionCount != 2 {
-		t.Errorf("first burst: expected ConnectionCount=2, got %d", first.ConnectionCount)
-	}
-	if second.ConnectionCount != 2 {
-		t.Errorf("second burst: expected ConnectionCount=2, got %d", second.ConnectionCount)
-	}
-}
-
-func TestConsolidateSessions_DifferentDestinationsNotMerged(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:8080",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(300 * time.Millisecond),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	// Each goes to a different dest port so they should not be merged
-	if len(result) != 2 {
-		t.Fatalf("expected 2 sessions (different destinations), got %d", len(result))
-	}
-}
-
-func TestConsolidateSessions_DifferentProtocolsNotMerged(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "udp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(300 * time.Millisecond),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 2 {
-		t.Fatalf("expected 2 sessions (different protocols), got %d", len(result))
-	}
-}
-
-func TestConsolidateSessions_DifferentResourceIDsNotMerged(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 2,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(300 * time.Millisecond),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 2 {
-		t.Fatalf("expected 2 sessions (different resource IDs), got %d", len(result))
-	}
-}
-
-func TestConsolidateSessions_DifferentSourceIPsNotMerged(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.2:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(300 * time.Millisecond),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 2 {
-		t.Fatalf("expected 2 sessions (different source IPs), got %d", len(result))
-	}
-}
-
-func TestConsolidateSessions_OutOfOrderInput(t *testing.T) {
-	now := time.Now()
-	// Provide sessions out of chronological order to verify sorting
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s3",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5002",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(400 * time.Millisecond),
-			EndedAt:    now.Add(500 * time.Millisecond),
-			BytesTx:    30,
-		},
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-			BytesTx:    10,
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(300 * time.Millisecond),
-			BytesTx:    20,
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 1 {
-		t.Fatalf("expected 1 consolidated session, got %d", len(result))
-	}
-
-	s := result[0]
-	if s.ConnectionCount != 3 {
-		t.Errorf("expected ConnectionCount=3, got %d", s.ConnectionCount)
-	}
-	if s.StartedAt != now {
-		t.Errorf("expected StartedAt to be earliest time")
-	}
-	if s.EndedAt != now.Add(500*time.Millisecond) {
-		t.Errorf("expected EndedAt to be latest time")
-	}
-	if s.BytesTx != 60 {
-		t.Errorf("expected BytesTx=60, got %d", s.BytesTx)
-	}
-}
-
-func TestConsolidateSessions_ExactlyAtGapThreshold(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-		},
-		{
-			// Starts exactly sessionGapThreshold after s1 ends — should still merge
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(100*time.Millisecond + sessionGapThreshold),
-			EndedAt:    now.Add(100*time.Millisecond + sessionGapThreshold + 50*time.Millisecond),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 1 {
-		t.Fatalf("expected 1 session (gap exactly at threshold merges), got %d", len(result))
-	}
-	if result[0].ConnectionCount != 2 {
-		t.Errorf("expected ConnectionCount=2, got %d", result[0].ConnectionCount)
-	}
-}
-
-func TestConsolidateSessions_JustOverGapThreshold(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-		},
-		{
-			// Starts 1ms over the gap threshold after s1 ends — should split
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(100*time.Millisecond + sessionGapThreshold + 1*time.Millisecond),
-			EndedAt:    now.Add(100*time.Millisecond + sessionGapThreshold + 50*time.Millisecond),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 2 {
-		t.Fatalf("expected 2 sessions (gap just over threshold splits), got %d", len(result))
-	}
-}
-
-func TestConsolidateSessions_UDPSessions(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		{
-			SessionID:  "u1",
-			ResourceID: 5,
-			SourceAddr: "10.0.0.1:6000",
-			DestAddr:   "192.168.1.100:53",
-			Protocol:   "udp",
-			StartedAt:  now,
-			EndedAt:    now.Add(50 * time.Millisecond),
-			BytesTx:    64,
-			BytesRx:    512,
-		},
-		{
-			SessionID:  "u2",
-			ResourceID: 5,
-			SourceAddr: "10.0.0.1:6001",
-			DestAddr:   "192.168.1.100:53",
-			Protocol:   "udp",
-			StartedAt:  now.Add(100 * time.Millisecond),
-			EndedAt:    now.Add(150 * time.Millisecond),
-			BytesTx:    64,
-			BytesRx:    256,
-		},
-		{
-			SessionID:  "u3",
-			ResourceID: 5,
-			SourceAddr: "10.0.0.1:6002",
-			DestAddr:   "192.168.1.100:53",
-			Protocol:   "udp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(250 * time.Millisecond),
-			BytesTx:    64,
-			BytesRx:    128,
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 1 {
-		t.Fatalf("expected 1 consolidated UDP session, got %d", len(result))
-	}
-
-	s := result[0]
-	if s.Protocol != "udp" {
-		t.Errorf("expected protocol=udp, got %q", s.Protocol)
-	}
-	if s.ConnectionCount != 3 {
-		t.Errorf("expected ConnectionCount=3, got %d", s.ConnectionCount)
-	}
-	if s.SourceAddr != "10.0.0.1" {
-		t.Errorf("expected source addr to be IP only, got %q", s.SourceAddr)
-	}
-	if s.BytesTx != 192 {
-		t.Errorf("expected BytesTx=192, got %d", s.BytesTx)
-	}
-	if s.BytesRx != 896 {
-		t.Errorf("expected BytesRx=896, got %d", s.BytesRx)
-	}
-}
-
-func TestConsolidateSessions_MixedGroupsSomeConsolidatedSomeNot(t *testing.T) {
-	now := time.Now()
-	sessions := []*AccessSession{
-		// Group 1: 3 connections to :443 from same IP — should consolidate
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(100 * time.Millisecond),
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(200 * time.Millisecond),
-			EndedAt:    now.Add(300 * time.Millisecond),
-		},
-		{
-			SessionID:  "s3",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5002",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(400 * time.Millisecond),
-			EndedAt:    now.Add(500 * time.Millisecond),
-		},
-		// Group 2: 1 connection to :8080 from different IP — should pass through
-		{
-			SessionID:  "s4",
-			ResourceID: 2,
-			SourceAddr: "10.0.0.2:6000",
-			DestAddr:   "192.168.1.200:8080",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(1 * time.Second),
-			EndedAt:    now.Add(2 * time.Second),
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 2 {
-		t.Fatalf("expected 2 sessions total, got %d", len(result))
-	}
-
-	var consolidated, passthrough *AccessSession
-	for _, s := range result {
-		if s.ConnectionCount > 1 {
-			consolidated = s
-		} else {
-			passthrough = s
-		}
-	}
-
-	if consolidated == nil {
-		t.Fatal("expected a consolidated session")
-	}
-	if consolidated.ConnectionCount != 3 {
-		t.Errorf("consolidated: expected ConnectionCount=3, got %d", consolidated.ConnectionCount)
-	}
-
-	if passthrough == nil {
-		t.Fatal("expected a passthrough session")
-	}
-	if passthrough.SessionID != "s4" {
-		t.Errorf("passthrough: expected session s4, got %s", passthrough.SessionID)
-	}
-}
-
-func TestConsolidateSessions_OverlappingConnections(t *testing.T) {
-	now := time.Now()
-	// Connections that overlap in time (not sequential)
-	sessions := []*AccessSession{
-		{
-			SessionID:  "s1",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5000",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now,
-			EndedAt:    now.Add(5 * time.Second),
-			BytesTx:    100,
-		},
-		{
-			SessionID:  "s2",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5001",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(1 * time.Second),
-			EndedAt:    now.Add(3 * time.Second),
-			BytesTx:    200,
-		},
-		{
-			SessionID:  "s3",
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:5002",
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(2 * time.Second),
-			EndedAt:    now.Add(6 * time.Second),
-			BytesTx:    300,
-		},
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 1 {
-		t.Fatalf("expected 1 consolidated session, got %d", len(result))
-	}
-
-	s := result[0]
-	if s.ConnectionCount != 3 {
-		t.Errorf("expected ConnectionCount=3, got %d", s.ConnectionCount)
-	}
-	if s.StartedAt != now {
-		t.Error("expected StartedAt to be earliest")
-	}
-	if s.EndedAt != now.Add(6*time.Second) {
-		t.Error("expected EndedAt to be the latest end time")
-	}
-	if s.BytesTx != 600 {
-		t.Errorf("expected BytesTx=600, got %d", s.BytesTx)
-	}
-}
-
-func TestConsolidateSessions_DoesNotMutateOriginals(t *testing.T) {
-	now := time.Now()
-	s1 := &AccessSession{
-		SessionID:  "s1",
-		ResourceID: 1,
-		SourceAddr: "10.0.0.1:5000",
-		DestAddr:   "192.168.1.100:443",
-		Protocol:   "tcp",
-		StartedAt:  now,
-		EndedAt:    now.Add(100 * time.Millisecond),
-		BytesTx:    100,
-	}
-	s2 := &AccessSession{
-		SessionID:  "s2",
-		ResourceID: 1,
-		SourceAddr: "10.0.0.1:5001",
-		DestAddr:   "192.168.1.100:443",
-		Protocol:   "tcp",
-		StartedAt:  now.Add(200 * time.Millisecond),
-		EndedAt:    now.Add(300 * time.Millisecond),
-		BytesTx:    200,
-	}
-
-	// Save original values
-	origS1Addr := s1.SourceAddr
-	origS1Bytes := s1.BytesTx
-	origS2Addr := s2.SourceAddr
-	origS2Bytes := s2.BytesTx
-
-	_ = consolidateSessions([]*AccessSession{s1, s2})
-
-	if s1.SourceAddr != origS1Addr {
-		t.Errorf("s1.SourceAddr was mutated: %q -> %q", origS1Addr, s1.SourceAddr)
-	}
-	if s1.BytesTx != origS1Bytes {
-		t.Errorf("s1.BytesTx was mutated: %d -> %d", origS1Bytes, s1.BytesTx)
-	}
-	if s2.SourceAddr != origS2Addr {
-		t.Errorf("s2.SourceAddr was mutated: %q -> %q", origS2Addr, s2.SourceAddr)
-	}
-	if s2.BytesTx != origS2Bytes {
-		t.Errorf("s2.BytesTx was mutated: %d -> %d", origS2Bytes, s2.BytesTx)
-	}
-}
-
-func TestConsolidateSessions_ThreeBurstsWithGaps(t *testing.T) {
-	now := time.Now()
-
-	sessions := make([]*AccessSession, 0, 9)
-
-	// Burst 1: 3 connections at t=0
-	for i := 0; i < 3; i++ {
-		sessions = append(sessions, &AccessSession{
-			SessionID:  generateSessionID(),
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:" + string(rune('A'+i)),
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(time.Duration(i*100) * time.Millisecond),
-			EndedAt:    now.Add(time.Duration(i*100+50) * time.Millisecond),
-		})
-	}
-
-	// Burst 2: 3 connections at t=20s (well past the 5s gap)
-	for i := 0; i < 3; i++ {
-		sessions = append(sessions, &AccessSession{
-			SessionID:  generateSessionID(),
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:" + string(rune('D'+i)),
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(20*time.Second + time.Duration(i*100)*time.Millisecond),
-			EndedAt:    now.Add(20*time.Second + time.Duration(i*100+50)*time.Millisecond),
-		})
-	}
-
-	// Burst 3: 3 connections at t=40s
-	for i := 0; i < 3; i++ {
-		sessions = append(sessions, &AccessSession{
-			SessionID:  generateSessionID(),
-			ResourceID: 1,
-			SourceAddr: "10.0.0.1:" + string(rune('G'+i)),
-			DestAddr:   "192.168.1.100:443",
-			Protocol:   "tcp",
-			StartedAt:  now.Add(40*time.Second + time.Duration(i*100)*time.Millisecond),
-			EndedAt:    now.Add(40*time.Second + time.Duration(i*100+50)*time.Millisecond),
-		})
-	}
-
-	result := consolidateSessions(sessions)
-	if len(result) != 3 {
-		t.Fatalf("expected 3 consolidated sessions (3 bursts), got %d", len(result))
-	}
-
-	for _, s := range result {
-		if s.ConnectionCount != 3 {
-			t.Errorf("expected each burst to have ConnectionCount=3, got %d (started=%v)", s.ConnectionCount, s.StartedAt)
-		}
-	}
-}
-
-func TestFinalizeMergedSourceAddr(t *testing.T) {
-	s := &AccessSession{SourceAddr: "10.0.0.1:5000"}
-	ports := map[string]struct{}{"10.0.0.1:5000": {}}
-	finalizeMergedSourceAddr(s, "10.0.0.1", ports)
-	if s.SourceAddr != "10.0.0.1:5000" {
-		t.Errorf("single port: expected addr preserved, got %q", s.SourceAddr)
-	}
-
-	s2 := &AccessSession{SourceAddr: "10.0.0.1:5000"}
-	ports2 := map[string]struct{}{"10.0.0.1:5000": {}, "10.0.0.1:5001": {}}
-	finalizeMergedSourceAddr(s2, "10.0.0.1", ports2)
-	if s2.SourceAddr != "10.0.0.1" {
-		t.Errorf("multiple ports: expected IP only, got %q", s2.SourceAddr)
-	}
-}
-
-func TestCloneSession(t *testing.T) {
-	original := &AccessSession{
-		SessionID:  "test",
-		ResourceID: 42,
-		SourceAddr: "1.2.3.4:100",
-		DestAddr:   "5.6.7.8:443",
-		Protocol:   "tcp",
-		BytesTx:    999,
-	}
-
-	clone := cloneSession(original)
-
-	if clone == original {
-		t.Error("clone should be a different pointer")
-	}
-	if clone.SessionID != original.SessionID {
-		t.Error("clone should have same SessionID")
-	}
-
-	// Mutating clone should not affect original
-	clone.BytesTx = 0
-	clone.SourceAddr = "changed"
-	if original.BytesTx != 999 {
-		t.Error("mutating clone affected original BytesTx")
-	}
-	if original.SourceAddr != "1.2.3.4:100" {
-		t.Error("mutating clone affected original SourceAddr")
-	}
-}

netstack2/handlers.go

@@ -1,3 +1,8 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2017-2025 WireGuard LLC. All Rights Reserved.
+ */
+
 package netstack2
 
 import (
@@ -132,47 +137,14 @@ func (h *TCPHandler) InstallTCPHandler() error {
 
 // handleTCPConn handles a TCP connection by proxying it to the actual target
 func (h *TCPHandler) handleTCPConn(netstackConn *gonet.TCPConn, id stack.TransportEndpointID) {
-	// Extract source and target address from the connection ID first so they
-	// are available for HTTP routing before any defer is set up.
+	defer netstackConn.Close()
+
+	// Extract source and target address from the connection ID
 	srcIP := id.RemoteAddress.String()
 	srcPort := id.RemotePort
 	dstIP := id.LocalAddress.String()
 	dstPort := id.LocalPort
 
-	// Drop connection if blocking is enabled
-	if h.proxyHandler != nil && h.proxyHandler.IsBlocked() {
-		logger.Debug("TCP Forwarder: connection blocked: %s:%d -> %s:%d", srcIP, srcPort, dstIP, dstPort)
-		netstackConn.Close()
-		return
-	}
-
-	// For HTTP/HTTPS ports, look up the matching subnet rule. If the rule has
-	// Protocol configured, hand the connection off to the HTTP handler which
-	// takes full ownership of the lifecycle (the defer close must not be
-	// installed before this point).
-	if (dstPort == 80 || dstPort == 443) && h.proxyHandler != nil && h.proxyHandler.httpHandler != nil {
-		srcAddr, _ := netip.ParseAddr(srcIP)
-		dstAddr, _ := netip.ParseAddr(dstIP)
-		rule := h.proxyHandler.subnetLookup.Match(srcAddr, dstAddr, dstPort, tcp.ProtocolNumber)
-		if rule != nil && rule.Protocol != "" && len(rule.HTTPTargets) > 0 {
-			logger.Info("TCP Forwarder: Routing %s:%d -> %s:%d to HTTP handler (%s)",
-				srcIP, srcPort, dstIP, dstPort, rule.Protocol)
-			h.proxyHandler.httpHandler.HandleConn(netstackConn, rule)
-			return
-		}
-		// Otherwise fall through to raw TCP forwarding (e.g. CIDR resources
-		// that happen to use port 80/443 without HTTP configuration).
-	}
-
-	defer netstackConn.Close()
-
-	// Release this connection's NAT state once it fully closes, so a rule
-	// change (e.g. RewriteTo) takes effect for the next connection on this
-	// tuple instead of being masked by a stale cached resolution forever.
-	if h.proxyHandler != nil {
-		defer h.proxyHandler.releaseConnectionState(srcIP, srcPort, dstIP, dstPort, uint8(tcp.ProtocolNumber))
-	}
-
 	logger.Info("TCP Forwarder: Handling connection %s:%d -> %s:%d", srcIP, srcPort, dstIP, dstPort)
 
 	// Check if there's a destination rewrite for this connection (e.g., localhost targets)
@@ -186,18 +158,6 @@ func (h *TCPHandler) handleTCPConn(netstackConn *gonet.TCPConn, id stack.Transpo
 
 	targetAddr := fmt.Sprintf("%s:%d", actualDstIP, dstPort)
 
-	// Look up resource ID and start access session if applicable
-	var accessSessionID string
-	if h.proxyHandler != nil {
-		resourceId := h.proxyHandler.LookupResourceId(srcIP, dstIP, dstPort, uint8(tcp.ProtocolNumber))
-		if resourceId != 0 {
-			if al := h.proxyHandler.GetAccessLogger(); al != nil {
-				srcAddr := fmt.Sprintf("%s:%d", srcIP, srcPort)
-				accessSessionID = al.StartTCPSession(resourceId, srcAddr, targetAddr)
-			}
-		}
-	}
-
 	// Create context with timeout for connection establishment
 	ctx, cancel := context.WithTimeout(context.Background(), tcpConnectTimeout)
 	defer cancel()
@@ -207,26 +167,11 @@ func (h *TCPHandler) handleTCPConn(netstackConn *gonet.TCPConn, id stack.Transpo
 	targetConn, err := d.DialContext(ctx, "tcp", targetAddr)
 	if err != nil {
 		logger.Info("TCP Forwarder: Failed to connect to %s: %v", targetAddr, err)
-		// End access session on connection failure
-		if accessSessionID != "" {
-			if al := h.proxyHandler.GetAccessLogger(); al != nil {
-				al.EndTCPSession(accessSessionID)
-			}
-		}
 		// Connection failed, netstack will handle RST
 		return
 	}
 	defer targetConn.Close()
 
-	// End access session when connection closes
-	if accessSessionID != "" {
-		defer func() {
-			if al := h.proxyHandler.GetAccessLogger(); al != nil {
-				al.EndTCPSession(accessSessionID)
-			}
-		}()
-	}
-
 	logger.Info("TCP Forwarder: Successfully connected to %s, starting bidirectional copy", targetAddr)
 
 	// Bidirectional copy between netstack and target
@@ -322,21 +267,8 @@ func (h *UDPHandler) handleUDPConn(netstackConn *gonet.UDPConn, id stack.Transpo
 	dstIP := id.LocalAddress.String()
 	dstPort := id.LocalPort
 
-	// Release this session's NAT state once it fully closes (session end or
-	// idle timeout), so a rule change takes effect for the next session on
-	// this tuple instead of being masked by a stale cached resolution.
-	if h.proxyHandler != nil {
-		defer h.proxyHandler.releaseConnectionState(srcIP, srcPort, dstIP, dstPort, uint8(udp.ProtocolNumber))
-	}
-
 	logger.Info("UDP Forwarder: Handling connection %s:%d -> %s:%d", srcIP, srcPort, dstIP, dstPort)
 
-	// Drop connection if blocking is enabled
-	if h.proxyHandler != nil && h.proxyHandler.IsBlocked() {
-		logger.Debug("UDP Forwarder: connection blocked: %s:%d -> %s:%d", srcIP, srcPort, dstIP, dstPort)
-		return
-	}
-
 	// Check if there's a destination rewrite for this connection (e.g., localhost targets)
 	actualDstIP := dstIP
 	if h.proxyHandler != nil {
@@ -348,27 +280,6 @@ func (h *UDPHandler) handleUDPConn(netstackConn *gonet.UDPConn, id stack.Transpo
 
 	targetAddr := fmt.Sprintf("%s:%d", actualDstIP, dstPort)
 
-	// Look up resource ID and start access session if applicable
-	var accessSessionID string
-	if h.proxyHandler != nil {
-		resourceId := h.proxyHandler.LookupResourceId(srcIP, dstIP, dstPort, uint8(udp.ProtocolNumber))
-		if resourceId != 0 {
-			if al := h.proxyHandler.GetAccessLogger(); al != nil {
-				srcAddr := fmt.Sprintf("%s:%d", srcIP, srcPort)
-				accessSessionID = al.TrackUDPSession(resourceId, srcAddr, targetAddr)
-			}
-		}
-	}
-
-	// End access session when UDP handler returns (timeout or error)
-	if accessSessionID != "" {
-		defer func() {
-			if al := h.proxyHandler.GetAccessLogger(); al != nil {
-				al.EndUDPSession(accessSessionID)
-			}
-		}()
-	}
-
 	// Resolve target address
 	remoteUDPAddr, err := net.ResolveUDPAddr("udp", targetAddr)
 	if err != nil {

netstack2/http_handler.go

@@ -1,420 +0,0 @@
-package netstack2
-
-import (
-	"bufio"
-	"context"
-	"crypto/tls"
-	"errors"
-	"fmt"
-	"net"
-	"net/http"
-	"net/http/httputil"
-	"net/url"
-	"sync"
-	"time"
-
-	"github.com/fosrl/newt/logger"
-	"gvisor.dev/gvisor/pkg/tcpip/stack"
-)
-
-// ---------------------------------------------------------------------------
-// HTTPTarget
-// ---------------------------------------------------------------------------
-
-// HTTPTarget describes a single downstream HTTP or HTTPS service that the
-// proxy should forward requests to.
-type HTTPTarget struct {
-	DestAddr string `json:"destAddr"` // IP address or hostname of the downstream service
-	DestPort uint16 `json:"destPort"` // TCP port of the downstream service
-	Scheme   string `json:"scheme"`   // When true the outbound leg uses HTTPS
-}
-
-// ---------------------------------------------------------------------------
-// HTTPHandler
-// ---------------------------------------------------------------------------
-
-// HTTPHandler intercepts TCP connections from the netstack forwarder on ports
-// 80 and 443 and services them as HTTP or HTTPS, reverse-proxying each request
-// to downstream targets specified by the matching SubnetRule.
-//
-// HTTP and raw TCP are fully separate: a connection is only routed here when
-// its SubnetRule has Protocol set ("http" or "https"). All other connections
-// on those ports fall through to the normal raw-TCP path.
-//
-// Incoming TLS termination (Protocol == "https") is performed per-connection
-// using the certificate and key stored in the rule, so different subnet rules
-// can present different certificates without sharing any state.
-//
-// Outbound connections to downstream targets honour HTTPTarget.UseHTTPS
-// independently of the incoming protocol.
-type HTTPHandler struct {
-	stack         *stack.Stack
-	proxyHandler  *ProxyHandler
-	requestLogger *HTTPRequestLogger
-
-	listener *chanListener
-	server   *http.Server
-
-	// proxyCache holds pre-built *httputil.ReverseProxy values keyed by the
-	// canonical target URL string ("scheme://host:port"). Building a proxy is
-	// cheap, but reusing one preserves the underlying http.Transport connection
-	// pool, which matters for throughput.
-	proxyCache sync.Map // map[string]*httputil.ReverseProxy
-
-	// tlsCache holds pre-parsed *tls.Config values keyed by the concatenation
-	// of the PEM certificate and key. Parsing a keypair is relatively expensive
-	// and the same cert is likely reused across many connections.
-	tlsCache sync.Map // map[string]*tls.Config
-}
-
-// ---------------------------------------------------------------------------
-// chanListener – net.Listener backed by a channel
-// ---------------------------------------------------------------------------
-
-// chanListener implements net.Listener by receiving net.Conn values over a
-// buffered channel. This lets the netstack TCP forwarder hand off connections
-// directly to a running http.Server without any real OS socket.
-type chanListener struct {
-	connCh chan net.Conn
-	closed chan struct{}
-	once   sync.Once
-}
-
-func newChanListener() *chanListener {
-	return &chanListener{
-		connCh: make(chan net.Conn, 128),
-		closed: make(chan struct{}),
-	}
-}
-
-// Accept blocks until a connection is available or the listener is closed.
-func (l *chanListener) Accept() (net.Conn, error) {
-	select {
-	case conn, ok := <-l.connCh:
-		if !ok {
-			return nil, net.ErrClosed
-		}
-		return conn, nil
-	case <-l.closed:
-		return nil, net.ErrClosed
-	}
-}
-
-// Close shuts down the listener; subsequent Accept calls return net.ErrClosed.
-func (l *chanListener) Close() error {
-	l.once.Do(func() { close(l.closed) })
-	return nil
-}
-
-// Addr returns a placeholder address (the listener has no real OS socket).
-func (l *chanListener) Addr() net.Addr {
-	return &net.TCPAddr{}
-}
-
-// send delivers conn to the listener. Returns false if the listener is already
-// closed, in which case the caller is responsible for closing conn.
-func (l *chanListener) send(conn net.Conn) bool {
-	select {
-	case l.connCh <- conn:
-		return true
-	case <-l.closed:
-		return false
-	}
-}
-
-// ---------------------------------------------------------------------------
-// httpConnCtx – conn wrapper that carries a SubnetRule through the listener
-// ---------------------------------------------------------------------------
-
-// httpConnCtx wraps a net.Conn so the matching SubnetRule and TLS state can
-// be passed through the chanListener into the http.Server's ConnContext
-// callback, making them available to request handlers via the request context.
-type httpConnCtx struct {
-	net.Conn
-	rule  *SubnetRule
-	isTLS bool // true when the conn was wrapped with tls.Server
-}
-
-// connCtxKey is the unexported context key used to store a *SubnetRule on the
-// per-connection context created by http.Server.ConnContext.
-type connCtxKey struct{}
-
-// connTLSKey is the unexported context key used to store the isTLS flag on
-// the per-connection context created by http.Server.ConnContext.
-type connTLSKey struct{}
-
-// ---------------------------------------------------------------------------
-// Constructor and lifecycle
-// ---------------------------------------------------------------------------
-
-// NewHTTPHandler creates an HTTPHandler attached to the given stack and
-// ProxyHandler. Call Start to begin serving connections.
-func NewHTTPHandler(s *stack.Stack, ph *ProxyHandler) *HTTPHandler {
-	return &HTTPHandler{
-		stack:        s,
-		proxyHandler: ph,
-	}
-}
-
-// SetRequestLogger attaches an HTTPRequestLogger so that every proxied request
-// is recorded and periodically shipped to the server.
-func (h *HTTPHandler) SetRequestLogger(rl *HTTPRequestLogger) {
-	h.requestLogger = rl
-}
-
-// Start launches the internal http.Server that services connections delivered
-// via HandleConn. The server runs for the lifetime of the HTTPHandler; call
-// Close to stop it.
-func (h *HTTPHandler) Start() error {
-	h.listener = newChanListener()
-
-	h.server = &http.Server{
-		Handler: http.HandlerFunc(h.handleRequest),
-		// ConnContext runs once per accepted connection and attaches the
-		// SubnetRule carried by httpConnCtx to the connection's context so
-		// that handleRequest can retrieve it without any global state.
-		ConnContext: func(ctx context.Context, c net.Conn) context.Context {
-			if cc, ok := c.(*httpConnCtx); ok {
-				ctx = context.WithValue(ctx, connCtxKey{}, cc.rule)
-				ctx = context.WithValue(ctx, connTLSKey{}, cc.isTLS)
-			}
-			return ctx
-		},
-	}
-
-	go func() {
-		if err := h.server.Serve(h.listener); err != nil && err != http.ErrServerClosed {
-			logger.Error("HTTP handler: server exited unexpectedly: %v", err)
-		}
-	}()
-
-	logger.Debug("HTTP handler: ready — routing determined per SubnetRule on ports 80/443")
-	return nil
-}
-
-// HandleConn accepts a TCP connection from the netstack forwarder together
-// with the SubnetRule that matched it. The HTTP handler takes full ownership
-// of the connection's lifecycle; the caller must NOT close conn after this call.
-//
-// When rule.Protocol is "https", TLS termination is performed on conn using
-// the certificate and key stored in rule.TLSCert and rule.TLSKey before the
-// connection is passed to the HTTP server. The HTTP server itself is always
-// plain-HTTP; TLS is fully unwrapped at this layer.
-func (h *HTTPHandler) HandleConn(conn net.Conn, rule *SubnetRule) {
-	var effectiveConn net.Conn = conn
-
-	if rule.Protocol == "https" {
-		// Only perform TLS termination for connections arriving on port 443.
-		// Connections on port 80 are passed through as plain HTTP so that
-		// handleRequest can issue the HTTP→HTTPS redirect.
-		doTLS := false
-		if tcpAddr, ok := conn.LocalAddr().(*net.TCPAddr); ok {
-			doTLS = tcpAddr.Port == 443
-		}
-		if doTLS {
-			tlsCfg, err := h.getTLSConfig(rule)
-			if err != nil {
-				logger.Error("HTTP handler: cannot build TLS config for connection from %s: %v",
-					conn.RemoteAddr(), err)
-				conn.Close()
-				return
-			}
-			// tls.Server wraps the raw conn; the TLS handshake is deferred until
-			// the first Read, which the http.Server will trigger naturally.
-			effectiveConn = tls.Server(conn, tlsCfg)
-		}
-	}
-
-	wrapped := &httpConnCtx{Conn: effectiveConn, rule: rule, isTLS: effectiveConn != conn}
-	if !h.listener.send(wrapped) {
-		// Listener is already closed — clean up the orphaned connection.
-		effectiveConn.Close()
-	}
-}
-
-// Close gracefully shuts down the HTTP server and the underlying channel
-// listener, causing the goroutine started in Start to exit.
-func (h *HTTPHandler) Close() error {
-	if h.server != nil {
-		if err := h.server.Close(); err != nil {
-			return err
-		}
-	}
-	if h.listener != nil {
-		h.listener.Close()
-	}
-	return nil
-}
-
-// ---------------------------------------------------------------------------
-// Internal helpers
-// ---------------------------------------------------------------------------
-
-// getTLSConfig returns a *tls.Config for the cert/key pair in rule, using a
-// cache to avoid re-parsing the same keypair on every connection.
-// The cache key is the concatenation of the PEM cert and key strings, so
-// different rules that happen to share the same material hit the same entry.
-func (h *HTTPHandler) getTLSConfig(rule *SubnetRule) (*tls.Config, error) {
-	cacheKey := rule.TLSCert + "|" + rule.TLSKey
-	if v, ok := h.tlsCache.Load(cacheKey); ok {
-		return v.(*tls.Config), nil
-	}
-
-	cert, err := tls.X509KeyPair([]byte(rule.TLSCert), []byte(rule.TLSKey))
-	if err != nil {
-		return nil, fmt.Errorf("failed to parse TLS keypair: %w", err)
-	}
-	cfg := &tls.Config{
-		Certificates: []tls.Certificate{cert},
-	}
-	// LoadOrStore is safe under concurrent calls: if two goroutines race here
-	// both will produce a valid config; the loser's work is discarded.
-	actual, _ := h.tlsCache.LoadOrStore(cacheKey, cfg)
-	return actual.(*tls.Config), nil
-}
-
-// getProxy returns a cached *httputil.ReverseProxy for the given target,
-// creating one on first use. Reusing the proxy preserves its http.Transport
-// connection pool, avoiding repeated TCP/TLS handshakes to the downstream.
-func (h *HTTPHandler) getProxy(target HTTPTarget) *httputil.ReverseProxy {
-	scheme := target.Scheme
-	cacheKey := fmt.Sprintf("%s://%s:%d", scheme, target.DestAddr, target.DestPort)
-
-	if v, ok := h.proxyCache.Load(cacheKey); ok {
-		return v.(*httputil.ReverseProxy)
-	}
-
-	targetURL := &url.URL{
-		Scheme: scheme,
-		Host:   fmt.Sprintf("%s:%d", target.DestAddr, target.DestPort),
-	}
-	var transport http.RoundTripper = http.DefaultTransport
-	if target.Scheme == "https" {
-		// Allow self-signed certificates on downstream HTTPS targets.
-		transport = &http.Transport{
-			TLSClientConfig: &tls.Config{
-				InsecureSkipVerify: true, //nolint:gosec // downstream self-signed certs are a supported configuration
-			},
-		}
-	}
-
-	proxy := &httputil.ReverseProxy{
-		Rewrite: func(pr *httputil.ProxyRequest) {
-			pr.SetURL(targetURL)
-			if host := pr.In.Host; host != "" {
-				pr.Out.Host = host
-			}
-			// SetXForwarded sets X-Forwarded-For from the inbound request's
-			// RemoteAddr (the WireGuard/netstack client address), along with
-			// X-Forwarded-Host and X-Forwarded-Proto. Using Rewrite instead of
-			// Director means the proxy does not append its own automatic
-			// X-Forwarded-For entry, so the header is set exactly once.
-			pr.SetXForwarded()
-
-			// SetXForwarded derives X-Forwarded-Proto from pr.In.TLS,
-			// which is nil because httpConnCtx wraps *tls.Conn behind
-			// net.Conn. Override using the context flag set by ConnContext.
-			if isTLS, _ := pr.In.Context().Value(connTLSKey{}).(bool); isTLS {
-				pr.Out.Header.Set("X-Forwarded-Proto", "https")
-			}
-		},
-		Transport: transport,
-	}
-
-	proxy.ErrorHandler = func(w http.ResponseWriter, r *http.Request, err error) {
-		logger.Error("HTTP handler: upstream error (%s %s -> %s): %v",
-			r.Method, r.URL.RequestURI(), cacheKey, err)
-		http.Error(w, "Bad Gateway", http.StatusBadGateway)
-	}
-
-	actual, _ := h.proxyCache.LoadOrStore(cacheKey, proxy)
-	return actual.(*httputil.ReverseProxy)
-}
-
-// statusCapture wraps an http.ResponseWriter and records the HTTP status code
-// written by the upstream handler. If WriteHeader is never called the status
-// defaults to 200 (http.StatusOK), matching net/http semantics.
-type statusCapture struct {
-	http.ResponseWriter
-	status int
-}
-
-func (sc *statusCapture) WriteHeader(code int) {
-	sc.status = code
-	sc.ResponseWriter.WriteHeader(code)
-}
-
-func (sc *statusCapture) Unwrap() http.ResponseWriter {
-	return sc.ResponseWriter
-}
-
-func (sc *statusCapture) Flush() {
-	if flusher, ok := sc.ResponseWriter.(http.Flusher); ok {
-		flusher.Flush()
-	}
-}
-
-func (sc *statusCapture) Hijack() (net.Conn, *bufio.ReadWriter, error) {
-	hijacker, ok := sc.ResponseWriter.(http.Hijacker)
-	if !ok {
-		return nil, nil, errors.New("underlying response writer does not support hijacking")
-	}
-	return hijacker.Hijack()
-}
-
-// handleRequest is the http.Handler entry point. It retrieves the SubnetRule
-// attached to the connection by ConnContext, selects the first configured
-// downstream target, and forwards the request via the cached ReverseProxy.
-//
-// TODO: add host/path-based routing across multiple HTTPTargets once the
-// configuration model evolves beyond a single target per rule.
-func (h *HTTPHandler) handleRequest(w http.ResponseWriter, r *http.Request) {
-	rule, _ := r.Context().Value(connCtxKey{}).(*SubnetRule)
-	if rule == nil || len(rule.HTTPTargets) == 0 {
-		logger.Error("HTTP handler: no downstream targets for request %s %s", r.Method, r.URL.RequestURI())
-		http.Error(w, "no targets configured", http.StatusBadGateway)
-		return
-	}
-
-	// If the rule is HTTPS but the incoming request arrived over plain HTTP
-	// (port 80), redirect to HTTPS. We use the isTLS flag stored on the
-	// connection context rather than r.TLS, because Go's http.Server calls
-	// ConnectionState() before the TLS handshake completes, so r.TLS.Version
-	// is 0 even for genuine TLS connections at that point.
-	isTLS, _ := r.Context().Value(connTLSKey{}).(bool)
-	if rule.Protocol == "https" && !isTLS {
-		host := r.Host
-		if host == "" {
-			host = r.URL.Host
-		}
-		httpsURL := "https://" + host + r.RequestURI
-		logger.Info("HTTP handler: redirecting %s %s -> %s (TLS cert present)", r.Method, r.URL.RequestURI(), httpsURL)
-		http.Redirect(w, r, httpsURL, http.StatusPermanentRedirect)
-		return
-	}
-
-	target := rule.HTTPTargets[0]
-	scheme := target.Scheme
-	logger.Info("HTTP handler: %s %s -> %s://%s:%d",
-		r.Method, r.URL.RequestURI(), scheme, target.DestAddr, target.DestPort)
-
-	timestamp := time.Now()
-	sc := &statusCapture{ResponseWriter: w, status: http.StatusOK}
-
-	h.getProxy(target).ServeHTTP(sc, r)
-
-	if h.requestLogger != nil && rule.ResourceId != 0 {
-		h.requestLogger.LogRequest(HTTPRequestLog{
-			ResourceID: rule.ResourceId,
-			Timestamp:  timestamp,
-			Method:     r.Method,
-			Scheme:     rule.Protocol,
-			Host:       r.Host,
-			Path:       r.URL.Path,
-			RawQuery:   r.URL.RawQuery,
-			UserAgent:  r.UserAgent(),
-			SourceAddr: r.RemoteAddr,
-			TLS:        rule.Protocol == "https",
-		})
-	}
-}

netstack2/http_handler_test.go

@@ -1,97 +0,0 @@
-package netstack2
-
-import (
-	"context"
-	"net"
-	"net/http"
-	"net/http/httptest"
-	"net/url"
-	"testing"
-
-	"github.com/gorilla/websocket"
-)
-
-func TestHTTPHandlerProxiesWebSocketUpgrade(t *testing.T) {
-	upgrader := websocket.Upgrader{}
-	backend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		conn, err := upgrader.Upgrade(w, r, nil)
-		if err != nil {
-			t.Errorf("upgrade failed: %v", err)
-			return
-		}
-		defer conn.Close()
-
-		messageType, payload, err := conn.ReadMessage()
-		if err != nil {
-			t.Errorf("read failed: %v", err)
-			return
-		}
-		if err := conn.WriteMessage(messageType, append([]byte("echo:"), payload...)); err != nil {
-			t.Errorf("write failed: %v", err)
-		}
-	}))
-	defer backend.Close()
-
-	backendURL, err := url.Parse(backend.URL)
-	if err != nil {
-		t.Fatalf("parse backend URL: %v", err)
-	}
-	backendHost, backendPort, err := net.SplitHostPort(backendURL.Host)
-	if err != nil {
-		t.Fatalf("split backend host: %v", err)
-	}
-	port, err := net.LookupPort("tcp", backendPort)
-	if err != nil {
-		t.Fatalf("parse backend port: %v", err)
-	}
-
-	handler := NewHTTPHandler(nil, nil)
-	rule := &SubnetRule{
-		Protocol: "http",
-		HTTPTargets: []HTTPTarget{
-			{
-				DestAddr: backendHost,
-				DestPort: uint16(port),
-				Scheme:   backendURL.Scheme,
-			},
-		},
-	}
-
-	frontend := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
-		ctx := context.WithValue(r.Context(), connCtxKey{}, rule)
-		handler.handleRequest(w, r.WithContext(ctx))
-	}))
-	defer frontend.Close()
-
-	frontendURL, err := url.Parse(frontend.URL)
-	if err != nil {
-		t.Fatalf("parse frontend URL: %v", err)
-	}
-	wsURL := url.URL{
-		Scheme:   "ws",
-		Host:     frontendURL.Host,
-		Path:     "/socket",
-		RawQuery: "token=test",
-	}
-
-	conn, _, err := websocket.DefaultDialer.Dial(wsURL.String(), nil)
-	if err != nil {
-		t.Fatalf("dial websocket through proxy: %v", err)
-	}
-	defer conn.Close()
-
-	if err := conn.WriteMessage(websocket.TextMessage, []byte("hello")); err != nil {
-		t.Fatalf("write websocket message: %v", err)
-	}
-
-	messageType, payload, err := conn.ReadMessage()
-	if err != nil {
-		t.Fatalf("read websocket message: %v", err)
-	}
-	if messageType != websocket.TextMessage {
-		t.Fatalf("message type = %d, want %d", messageType, websocket.TextMessage)
-	}
-	if got, want := string(payload), "echo:hello"; got != want {
-		t.Fatalf("payload = %q, want %q", got, want)
-	}
-}

netstack2/http_request_log.go

@@ -1,175 +0,0 @@
-package netstack2
-
-import (
-	"bytes"
-	"compress/zlib"
-	"encoding/base64"
-	"encoding/json"
-	"sync"
-	"time"
-
-	"github.com/fosrl/newt/logger"
-)
-
-// HTTPRequestLog represents a single HTTP/HTTPS request proxied through the handler.
-type HTTPRequestLog struct {
-	RequestID  string    `json:"requestId"`
-	ResourceID int       `json:"resourceId"`
-	Timestamp  time.Time `json:"timestamp"`
-	Method     string    `json:"method"`
-	Scheme     string    `json:"scheme"`
-	Host       string    `json:"host"`
-	Path       string    `json:"path"`
-	RawQuery   string    `json:"rawQuery,omitempty"`
-	UserAgent  string    `json:"userAgent,omitempty"`
-	SourceAddr string    `json:"sourceAddr"`
-	TLS        bool      `json:"tls"`
-}
-
-// HTTPRequestLogger buffers HTTP request logs and periodically flushes them
-// to the server via a configurable SendFunc.
-type HTTPRequestLogger struct {
-	mu        sync.Mutex
-	pending   []HTTPRequestLog
-	sendFn    SendFunc
-	stopCh    chan struct{}
-	flushDone chan struct{}
-}
-
-// NewHTTPRequestLogger creates a new HTTPRequestLogger and starts its background flush loop.
-func NewHTTPRequestLogger() *HTTPRequestLogger {
-	rl := &HTTPRequestLogger{
-		pending:   make([]HTTPRequestLog, 0),
-		stopCh:    make(chan struct{}),
-		flushDone: make(chan struct{}),
-	}
-	go rl.backgroundLoop()
-	return rl
-}
-
-// SetSendFunc sets the callback used to send compressed HTTP request log batches
-// to the server. This can be called after construction once the websocket
-// client is available.
-func (rl *HTTPRequestLogger) SetSendFunc(fn SendFunc) {
-	rl.mu.Lock()
-	defer rl.mu.Unlock()
-	rl.sendFn = fn
-}
-
-// LogRequest adds an HTTP request log entry to the buffer. If the buffer
-// reaches maxBufferedSessions entries a flush is triggered immediately.
-func (rl *HTTPRequestLogger) LogRequest(log HTTPRequestLog) {
-	if log.RequestID == "" {
-		log.RequestID = generateSessionID()
-	}
-
-	rl.mu.Lock()
-	rl.pending = append(rl.pending, log)
-	shouldFlush := len(rl.pending) >= maxBufferedSessions
-	rl.mu.Unlock()
-
-	if shouldFlush {
-		rl.flush()
-	}
-}
-
-// backgroundLoop handles periodic flushing of buffered request logs.
-func (rl *HTTPRequestLogger) backgroundLoop() {
-	defer close(rl.flushDone)
-
-	ticker := time.NewTicker(flushInterval)
-	defer ticker.Stop()
-
-	for {
-		select {
-		case <-rl.stopCh:
-			return
-		case <-ticker.C:
-			rl.flush()
-		}
-	}
-}
-
-// flush drains the pending buffer, compresses with zlib, and sends via the SendFunc.
-// On send failure the batch is re-queued, capped at maxBufferedSessions*5 entries
-// to prevent unbounded memory growth when the server is unreachable.
-func (rl *HTTPRequestLogger) flush() {
-	rl.mu.Lock()
-	if len(rl.pending) == 0 {
-		rl.mu.Unlock()
-		return
-	}
-	batch := rl.pending
-	rl.pending = make([]HTTPRequestLog, 0)
-	sendFn := rl.sendFn
-	rl.mu.Unlock()
-
-	if sendFn == nil {
-		logger.Debug("HTTP request logger: no send function configured, discarding %d requests", len(batch))
-		return
-	}
-
-	compressed, err := compressRequestLogs(batch)
-	if err != nil {
-		logger.Error("HTTP request logger: failed to compress %d requests: %v", len(batch), err)
-		return
-	}
-
-	if err := sendFn(compressed); err != nil {
-		logger.Error("HTTP request logger: failed to send %d requests: %v", len(batch), err)
-		// Re-queue the batch so we don't lose data
-		rl.mu.Lock()
-		rl.pending = append(batch, rl.pending...)
-		// Cap re-queued data to prevent unbounded growth if server is unreachable
-		if len(rl.pending) > maxBufferedSessions*5 {
-			dropped := len(rl.pending) - maxBufferedSessions*5
-			rl.pending = rl.pending[:maxBufferedSessions*5]
-			logger.Warn("HTTP request logger: buffer overflow, dropped %d oldest requests", dropped)
-		}
-		rl.mu.Unlock()
-		return
-	}
-
-	logger.Info("HTTP request logger: sent %d requests to server", len(batch))
-}
-
-// compressRequestLogs JSON-encodes the request logs, compresses with zlib, and
-// returns a base64-encoded string suitable for embedding in a JSON message.
-func compressRequestLogs(logs []HTTPRequestLog) (string, error) {
-	jsonData, err := json.Marshal(logs)
-	if err != nil {
-		return "", err
-	}
-
-	var buf bytes.Buffer
-	w, err := zlib.NewWriterLevel(&buf, zlib.BestCompression)
-	if err != nil {
-		return "", err
-	}
-	if _, err := w.Write(jsonData); err != nil {
-		w.Close()
-		return "", err
-	}
-	if err := w.Close(); err != nil {
-		return "", err
-	}
-
-	return base64.StdEncoding.EncodeToString(buf.Bytes()), nil
-}
-
-// Close shuts down the background loop and performs one final flush to send
-// any remaining buffered requests to the server.
-func (rl *HTTPRequestLogger) Close() {
-	select {
-	case <-rl.stopCh:
-		// Already closed
-		return
-	default:
-		close(rl.stopCh)
-	}
-
-	// Wait for the background loop to exit so we don't race on flush
-	<-rl.flushDone
-
-	rl.flush()
-}

netstack2/proxy.go

@@ -6,7 +6,6 @@ import (
 	"net"
 	"net/netip"
 	"sync"
-	"sync/atomic"
 	"time"
 
 	"github.com/fosrl/newt/logger"
@@ -23,12 +22,6 @@ import (
 	"gvisor.dev/gvisor/pkg/tcpip/transport/udp"
 )
 
-const (
-	// udpAccessSessionTimeout is how long a UDP access session stays alive without traffic
-	// before being considered ended by the access logger
-	udpAccessSessionTimeout = 120 * time.Second
-)
-
 // PortRange represents an allowed range of ports (inclusive) with optional protocol filtering
 // Protocol can be "tcp", "udp", or "" (empty string means both protocols)
 type PortRange struct {
@@ -53,32 +46,115 @@ type SubnetRule struct {
 	DisableIcmp  bool         // If true, ICMP traffic is blocked for this subnet
 	RewriteTo    string       // Optional rewrite address for DNAT - can be IP/CIDR or domain name
 	PortRanges   []PortRange  // empty slice means all ports allowed
-	ResourceId   int          // Optional resource ID from the server for access logging
-
-	// HTTP proxy configuration (optional).
-	// When Protocol is non-empty the TCP connection is handled by HTTPHandler
-	// instead of the raw TCP forwarder.
-	Protocol    string       // "", "http", or "https" — controls the incoming (client-facing) protocol
-	HTTPTargets []HTTPTarget // downstream services to proxy requests to
-	TLSCert     string       // PEM-encoded certificate for incoming HTTPS termination
-	TLSKey      string       // PEM-encoded private key for incoming HTTPS termination
 }
 
-// GetAllRules returns a copy of all subnet rules
-func (sl *SubnetLookup) GetAllRules() []SubnetRule {
+// ruleKey is used as a map key for fast O(1) lookups
+type ruleKey struct {
+	sourcePrefix string
+	destPrefix   string
+}
+
+// SubnetLookup provides fast IP subnet and port matching with O(1) lookup performance
+type SubnetLookup struct {
+	mu    sync.RWMutex
+	rules map[ruleKey]*SubnetRule // Map for O(1) lookups by prefix combination
+}
+
+// NewSubnetLookup creates a new subnet lookup table
+func NewSubnetLookup() *SubnetLookup {
+	return &SubnetLookup{
+		rules: make(map[ruleKey]*SubnetRule),
+	}
+}
+
+// AddSubnet adds a subnet rule with source and destination prefixes and optional port restrictions
+// If portRanges is nil or empty, all ports are allowed for this subnet
+// rewriteTo can be either an IP/CIDR (e.g., "192.168.1.1/32") or a domain name (e.g., "example.com")
+func (sl *SubnetLookup) AddSubnet(sourcePrefix, destPrefix netip.Prefix, rewriteTo string, portRanges []PortRange, disableIcmp bool) {
+	sl.mu.Lock()
+	defer sl.mu.Unlock()
+
+	key := ruleKey{
+		sourcePrefix: sourcePrefix.String(),
+		destPrefix:   destPrefix.String(),
+	}
+
+	sl.rules[key] = &SubnetRule{
+		SourcePrefix: sourcePrefix,
+		DestPrefix:   destPrefix,
+		DisableIcmp:  disableIcmp,
+		RewriteTo:    rewriteTo,
+		PortRanges:   portRanges,
+	}
+}
+
+// RemoveSubnet removes a subnet rule from the lookup table
+func (sl *SubnetLookup) RemoveSubnet(sourcePrefix, destPrefix netip.Prefix) {
+	sl.mu.Lock()
+	defer sl.mu.Unlock()
+
+	key := ruleKey{
+		sourcePrefix: sourcePrefix.String(),
+		destPrefix:   destPrefix.String(),
+	}
+
+	delete(sl.rules, key)
+}
+
+// Match checks if a source IP, destination IP, port, and protocol match any subnet rule
+// Returns the matched rule if ALL of these conditions are met:
+//   - The source IP is in the rule's source prefix
+//   - The destination IP is in the rule's destination prefix
+//   - The port is in an allowed range (or no port restrictions exist)
+//   - The protocol matches (or the port range allows both protocols)
+//
+// proto should be header.TCPProtocolNumber or header.UDPProtocolNumber
+// Returns nil if no rule matches
+func (sl *SubnetLookup) Match(srcIP, dstIP netip.Addr, port uint16, proto tcpip.TransportProtocolNumber) *SubnetRule {
 	sl.mu.RLock()
 	defer sl.mu.RUnlock()
 
-	var rules []SubnetRule
-	for _, destTriePtr := range sl.sourceTrie.All() {
-		if destTriePtr == nil {
+	// Iterate through all rules to find matching source and destination prefixes
+	// This is O(n) but necessary since we need to check prefix containment, not exact match
+	for _, rule := range sl.rules {
+		// Check if source and destination IPs match their respective prefixes
+		if !rule.SourcePrefix.Contains(srcIP) {
 			continue
 		}
-		for _, rule := range destTriePtr.rules {
-			rules = append(rules, *rule)
+		if !rule.DestPrefix.Contains(dstIP) {
+			continue
+		}
+
+		if rule.DisableIcmp && (proto == header.ICMPv4ProtocolNumber || proto == header.ICMPv6ProtocolNumber) {
+		    // ICMP is disabled for this subnet
+			return nil
+		}
+
+		// Both IPs match - now check port restrictions
+		// If no port ranges specified, all ports are allowed
+		if len(rule.PortRanges) == 0 {
+			return rule
+		}
+
+		// Check if port and protocol are in any of the allowed ranges
+		for _, pr := range rule.PortRanges {
+			if port >= pr.Min && port <= pr.Max {
+				// Check protocol compatibility
+				if pr.Protocol == "" {
+					// Empty protocol means allow both TCP and UDP
+					return rule
+				}
+				// Check if the packet protocol matches the port range protocol
+				if (pr.Protocol == "tcp" && proto == header.TCPProtocolNumber) ||
+					(pr.Protocol == "udp" && proto == header.UDPProtocolNumber) {
+					return rule
+				}
+				// Port matches but protocol doesn't - continue checking other ranges
+			}
 		}
 	}
-	return rules
+
+	return nil
 }
 
 // connKey uniquely identifies a connection for NAT tracking
@@ -90,17 +166,6 @@ type connKey struct {
 	proto   uint8
 }
 
-// reverseConnKey uniquely identifies a connection for reverse NAT lookup (reply direction)
-// Key structure: (rewrittenTo, originalSrcIP, originalSrcPort, originalDstPort, proto)
-// This allows O(1) lookup of NAT entries for reply packets
-type reverseConnKey struct {
-	rewrittenTo     string // The address we rewrote to (becomes src in replies)
-	originalSrcIP   string // Original source IP (becomes dst in replies)
-	originalSrcPort uint16 // Original source port (becomes dst port in replies)
-	originalDstPort uint16 // Original destination port (becomes src port in replies)
-	proto           uint8
-}
-
 // destKey identifies a destination for handler lookups (without source port since it may change)
 type destKey struct {
 	srcIP   string
@@ -123,19 +188,13 @@ type ProxyHandler struct {
 	tcpHandler        *TCPHandler
 	udpHandler        *UDPHandler
 	icmpHandler       *ICMPHandler
-	httpHandler       *HTTPHandler
 	subnetLookup      *SubnetLookup
 	natTable          map[connKey]*natState
-	reverseNatTable   map[reverseConnKey]*natState // Reverse lookup map for O(1) reply packet NAT
-	destRewriteTable  map[destKey]netip.Addr       // Maps original dest to rewritten dest for handler lookups
-	resourceTable     map[destKey]int              // Maps connection key to resource ID for access logging
+	destRewriteTable  map[destKey]netip.Addr // Maps original dest to rewritten dest for handler lookups
 	natMu             sync.RWMutex
 	enabled           bool
 	icmpReplies       chan []byte          // Channel for ICMP reply packets to be sent back through the tunnel
 	notifiable        channel.Notification // Notification handler for triggering reads
-	accessLogger      *AccessLogger        // Access logger for tracking sessions
-	httpRequestLogger *HTTPRequestLogger   // HTTP request logger for proxied HTTP/HTTPS requests
-	blocked           atomic.Bool          // when true, all new connections are dropped
 }
 
 // ProxyHandlerOptions configures the proxy handler
@@ -156,11 +215,8 @@ func NewProxyHandler(options ProxyHandlerOptions) (*ProxyHandler, error) {
 		enabled:          true,
 		subnetLookup:     NewSubnetLookup(),
 		natTable:         make(map[connKey]*natState),
-		reverseNatTable:  make(map[reverseConnKey]*natState),
 		destRewriteTable: make(map[destKey]netip.Addr),
-		resourceTable:    make(map[destKey]int),
 		icmpReplies:      make(chan []byte, 256), // Buffer for ICMP reply packets
-		accessLogger:     NewAccessLogger(udpAccessSessionTimeout),
 		proxyEp:          channel.New(1024, uint32(options.MTU), ""),
 		proxyStack: stack.New(stack.Options{
 			NetworkProtocols: []stack.NetworkProtocolFactory{
@@ -176,24 +232,12 @@ func NewProxyHandler(options ProxyHandlerOptions) (*ProxyHandler, error) {
 		}),
 	}
 
-	// Initialize TCP handler if enabled. The HTTP handler piggybacks on the
-	// TCP forwarder — TCPHandler.handleTCPConn checks the subnet rule for
-	// ports 80/443 and routes matching connections to the HTTP handler, so
-	// the HTTP handler is always initialised alongside TCP.
+	// Initialize TCP handler if enabled
 	if options.EnableTCP {
 		handler.tcpHandler = NewTCPHandler(handler.proxyStack, handler)
 		if err := handler.tcpHandler.InstallTCPHandler(); err != nil {
 			return nil, fmt.Errorf("failed to install TCP handler: %v", err)
 		}
-
-		handler.httpHandler = NewHTTPHandler(handler.proxyStack, handler)
-		if err := handler.httpHandler.Start(); err != nil {
-			return nil, fmt.Errorf("failed to start HTTP handler: %v", err)
-		}
-
-		handler.httpRequestLogger = NewHTTPRequestLogger()
-		handler.httpHandler.SetRequestLogger(handler.httpRequestLogger)
-		logger.Debug("ProxyHandler: HTTP handler enabled")
 	}
 
 	// Initialize UDP handler if enabled
@@ -232,36 +276,16 @@ func NewProxyHandler(options ProxyHandlerOptions) (*ProxyHandler, error) {
 	return handler, nil
 }
 
-// AddSubnetRule adds a subnet rule to the proxy handler.
-// HTTP proxy behaviour is configured via rule.Protocol, rule.HTTPTargets,
-// rule.TLSCert, and rule.TLSKey; leave Protocol empty for raw TCP/UDP.
-func (p *ProxyHandler) AddSubnetRule(rule SubnetRule) {
+// AddSubnetRule adds a subnet with optional port restrictions to the proxy handler
+// sourcePrefix: The IP prefix of the peer sending the data
+// destPrefix: The IP prefix of the destination
+// rewriteTo: Optional address to rewrite destination to - can be IP/CIDR or domain name
+// If portRanges is nil or empty, all ports are allowed for this subnet
+func (p *ProxyHandler) AddSubnetRule(sourcePrefix, destPrefix netip.Prefix, rewriteTo string, portRanges []PortRange, disableIcmp bool) {
 	if p == nil || !p.enabled {
 		return
 	}
-	p.subnetLookup.AddSubnet(rule)
-}
-
-// SetBlocked enables or disables connection blocking on this proxy handler.
-// When enabled, all new TCP/UDP connections from the tunnel are dropped immediately.
-func (p *ProxyHandler) SetBlocked(v bool) {
-	if p == nil {
-		return
-	}
-	p.blocked.Store(v)
-	if v {
-		logger.Debug("ProxyHandler: connection blocking enabled")
-	} else {
-		logger.Debug("ProxyHandler: connection blocking disabled")
-	}
-}
-
-// IsBlocked returns true if connection blocking is currently enabled.
-func (p *ProxyHandler) IsBlocked() bool {
-	if p == nil {
-		return false
-	}
-	return p.blocked.Load()
+	p.subnetLookup.AddSubnet(sourcePrefix, destPrefix, rewriteTo, portRanges, disableIcmp)
 }
 
 // RemoveSubnetRule removes a subnet from the proxy handler
@@ -272,126 +296,6 @@ func (p *ProxyHandler) RemoveSubnetRule(sourcePrefix, destPrefix netip.Prefix) {
 	p.subnetLookup.RemoveSubnet(sourcePrefix, destPrefix)
 }
 
-// ReplaceAllSubnetRules atomically replaces the full set of subnet rules.
-// Intended for full-state syncs where the desired rule set is authoritative,
-// so any stale rule is guaranteed to be cleared even if its key
-// (SourcePrefix, DestPrefix) matches a still-desired rule but its contents
-// (e.g. RewriteTo) have changed.
-func (p *ProxyHandler) ReplaceAllSubnetRules(rules []SubnetRule) {
-	if p == nil || !p.enabled {
-		return
-	}
-	p.subnetLookup.ReplaceAll(rules)
-}
-
-// GetAllRules returns all subnet rules from the proxy handler
-func (p *ProxyHandler) GetAllRules() []SubnetRule {
-	if p == nil || !p.enabled {
-		return nil
-	}
-	return p.subnetLookup.GetAllRules()
-}
-
-// LookupResourceId looks up the resource ID for a connection
-// Returns 0 if no resource ID is associated with this connection
-func (p *ProxyHandler) LookupResourceId(srcIP, dstIP string, dstPort uint16, proto uint8) int {
-	if p == nil || !p.enabled {
-		return 0
-	}
-
-	key := destKey{
-		srcIP:   srcIP,
-		dstIP:   dstIP,
-		dstPort: dstPort,
-		proto:   proto,
-	}
-
-	p.natMu.RLock()
-	defer p.natMu.RUnlock()
-
-	return p.resourceTable[key]
-}
-
-// GetAccessLogger returns the access logger for session tracking
-func (p *ProxyHandler) GetAccessLogger() *AccessLogger {
-	if p == nil {
-		return nil
-	}
-	return p.accessLogger
-}
-
-// SetAccessLogSender configures the function used to send compressed access log
-// batches to the server. This should be called once the websocket client is available.
-func (p *ProxyHandler) SetAccessLogSender(fn SendFunc) {
-	if p == nil || !p.enabled || p.accessLogger == nil {
-		return
-	}
-	p.accessLogger.SetSendFunc(fn)
-}
-
-// GetHTTPRequestLogger returns the HTTP request logger.
-func (p *ProxyHandler) GetHTTPRequestLogger() *HTTPRequestLogger {
-	if p == nil {
-		return nil
-	}
-	return p.httpRequestLogger
-}
-
-// SetHTTPRequestLogSender configures the function used to send compressed HTTP
-// request log batches to the server. This should be called once the websocket
-// client is available.
-func (p *ProxyHandler) SetHTTPRequestLogSender(fn SendFunc) {
-	if p == nil || !p.enabled || p.httpRequestLogger == nil {
-		return
-	}
-	p.httpRequestLogger.SetSendFunc(fn)
-}
-
-// releaseConnectionState removes the per-connection NAT state for a single
-// (srcIP, srcPort, dstIP, dstPort, proto) tuple. Callers must only invoke
-// this once that exact connection has fully closed (both directions torn
-// down), since a new connection can never be accepted on the same 5-tuple
-// before then.
-//
-// This intentionally does NOT touch destRewriteTable/resourceTable: those
-// are keyed without srcPort (destKey), so they are shared across every
-// concurrent connection from the same source to the same destination
-// service. They don't need connection-scoped cleanup - each new connection's
-// first packet already refreshes them via HandleIncomingPacket - and
-// deleting them here on a single connection's close could break other
-// connections still in flight to the same destination.
-func (p *ProxyHandler) releaseConnectionState(srcIP string, srcPort uint16, dstIP string, dstPort uint16, proto uint8) {
-	if p == nil || !p.enabled {
-		return
-	}
-
-	key := connKey{
-		srcIP:   srcIP,
-		srcPort: srcPort,
-		dstIP:   dstIP,
-		dstPort: dstPort,
-		proto:   proto,
-	}
-
-	p.natMu.Lock()
-	defer p.natMu.Unlock()
-
-	entry, ok := p.natTable[key]
-	if !ok {
-		return
-	}
-	delete(p.natTable, key)
-
-	reverseKey := reverseConnKey{
-		rewrittenTo:     entry.rewrittenTo.String(),
-		originalSrcIP:   srcIP,
-		originalSrcPort: srcPort,
-		originalDstPort: dstPort,
-		proto:           proto,
-	}
-	delete(p.reverseNatTable, reverseKey)
-}
-
 // LookupDestinationRewrite looks up the rewritten destination for a connection
 // This is used by TCP/UDP handlers to find the actual target address
 func (p *ProxyHandler) LookupDestinationRewrite(srcIP, dstIP string, dstPort uint16, proto uint8) (netip.Addr, bool) {
@@ -554,22 +458,8 @@ func (p *ProxyHandler) HandleIncomingPacket(packet []byte) bool {
 	// Check if the source IP, destination IP, port, and protocol match any subnet rule
 	matchedRule := p.subnetLookup.Match(srcAddr, dstAddr, dstPort, protocol)
 	if matchedRule != nil {
-		logger.Debug("HandleIncomingPacket: Matched rule for %s -> %s (proto=%d, port=%d, resourceId=%d)",
-			srcAddr, dstAddr, protocol, dstPort, matchedRule.ResourceId)
-
-		// Store resource ID for connections without DNAT as well
-		if matchedRule.ResourceId != 0 && matchedRule.RewriteTo == "" {
-			dKey := destKey{
-				srcIP:   srcAddr.String(),
-				dstIP:   dstAddr.String(),
-				dstPort: dstPort,
-				proto:   uint8(protocol),
-			}
-			p.natMu.Lock()
-			p.resourceTable[dKey] = matchedRule.ResourceId
-			p.natMu.Unlock()
-		}
-
+		logger.Debug("HandleIncomingPacket: Matched rule for %s -> %s (proto=%d, port=%d)",
+			srcAddr, dstAddr, protocol, dstPort)
 		// Check if we need to perform DNAT
 		if matchedRule.RewriteTo != "" {
 			// Create connection tracking key using original destination
@@ -601,13 +491,6 @@ func (p *ProxyHandler) HandleIncomingPacket(packet []byte) bool {
 				proto:   uint8(protocol),
 			}
 
-			// Store resource ID for access logging if present
-			if matchedRule.ResourceId != 0 {
-				p.natMu.Lock()
-				p.resourceTable[dKey] = matchedRule.ResourceId
-				p.natMu.Unlock()
-			}
-
 			// Check if we already have a NAT entry for this connection
 			p.natMu.RLock()
 			existingEntry, exists := p.natTable[key]
@@ -634,37 +517,12 @@ func (p *ProxyHandler) HandleIncomingPacket(packet []byte) bool {
 
 				// Store NAT state for this connection
 				p.natMu.Lock()
-				natEntry := &natState{
+				p.natTable[key] = &natState{
 					originalDst: dstAddr,
 					rewrittenTo: newDst,
 				}
-				p.natTable[key] = natEntry
-
-				// Create reverse lookup key for O(1) reply packet lookups
-				// Key: (rewrittenTo, originalSrcIP, originalSrcPort, originalDstPort, proto)
-				reverseKey := reverseConnKey{
-					rewrittenTo:     newDst.String(),
-					originalSrcIP:   srcAddr.String(),
-					originalSrcPort: srcPort,
-					originalDstPort: dstPort,
-					proto:           uint8(protocol),
-				}
-				p.reverseNatTable[reverseKey] = natEntry
-
 				// Store destination rewrite for handler lookups
 				p.destRewriteTable[dKey] = newDst
-
-				// Also store the resource ID under the rewritten destination key so that
-				// TCP/UDP handlers can find it after DNAT (they see the post-NAT dst IP).
-				if matchedRule.ResourceId != 0 {
-					rewrittenKey := destKey{
-						srcIP:   srcAddr.String(),
-						dstIP:   newDst.String(),
-						dstPort: dstPort,
-						proto:   uint8(protocol),
-					}
-					p.resourceTable[rewrittenKey] = matchedRule.ResourceId
-				}
 				p.natMu.Unlock()
 				logger.Debug("New NAT entry for connection: %s -> %s", dstAddr, newDst)
 			}
@@ -693,7 +551,7 @@ func (p *ProxyHandler) HandleIncomingPacket(packet []byte) bool {
 	}
 
 	// logger.Debug("HandleIncomingPacket: No matching rule for %s -> %s (proto=%d, port=%d)",
-	// srcAddr, dstAddr, protocol, dstPort)
+		// srcAddr, dstAddr, protocol, dstPort)
 	return false
 }
 
@@ -861,22 +719,20 @@ func (p *ProxyHandler) ReadOutgoingPacket() *buffer.View {
 				return view
 			}
 
-			// Look up NAT state for reverse translation using O(1) reverse lookup map
-			// Key: (rewrittenTo, originalSrcIP, originalSrcPort, originalDstPort, proto)
-			// For reply packets:
-			// - reply's srcIP = rewrittenTo (the address we rewrote to)
-			// - reply's dstIP = originalSrcIP (original source IP)
-			// - reply's srcPort = originalDstPort (original destination port)
-			// - reply's dstPort = originalSrcPort (original source port)
+			// Look up NAT state for reverse translation
+			// The key uses the original dst (before rewrite), so for replies we need to
+			// find the entry where the rewritten address matches the current source
 			p.natMu.RLock()
-			reverseKey := reverseConnKey{
-				rewrittenTo:     srcIP.String(), // Reply's source is the rewritten address
-				originalSrcIP:   dstIP.String(), // Reply's destination is the original source
-				originalSrcPort: dstPort,        // Reply's destination port is the original source port
-				originalDstPort: srcPort,        // Reply's source port is the original destination port
-				proto:           uint8(protocol),
+			var natEntry *natState
+			for k, entry := range p.natTable {
+				// Match: reply's dst should be original src, reply's src should be rewritten dst
+				if k.srcIP == dstIP.String() && k.srcPort == dstPort &&
+					entry.rewrittenTo.String() == srcIP.String() && k.dstPort == srcPort &&
+					k.proto == uint8(protocol) {
+					natEntry = entry
+					break
+				}
 			}
-			natEntry := p.reverseNatTable[reverseKey]
 			p.natMu.RUnlock()
 
 			if natEntry != nil {
@@ -920,21 +776,6 @@ func (p *ProxyHandler) Close() error {
 		return nil
 	}
 
-	// Shut down access logger
-	if p.accessLogger != nil {
-		p.accessLogger.Close()
-	}
-
-	// Shut down HTTP request logger
-	if p.httpRequestLogger != nil {
-		p.httpRequestLogger.Close()
-	}
-
-	// Shut down HTTP handler
-	if p.httpHandler != nil {
-		p.httpHandler.Close()
-	}
-
 	// Close ICMP replies channel
 	if p.icmpReplies != nil {
 		close(p.icmpReplies)

netstack2/subnet_lookup.go

@@ -1,223 +0,0 @@
-package netstack2
-
-import (
-	"net/netip"
-	"sync"
-
-	"github.com/gaissmai/bart"
-	"gvisor.dev/gvisor/pkg/tcpip"
-	"gvisor.dev/gvisor/pkg/tcpip/header"
-)
-
-// SubnetLookup provides fast IP subnet and port matching using BART (Binary Aggregated Range Tree)
-// This uses BART Table for O(log n) prefix matching with Supernets() for efficient lookups
-//
-// Architecture:
-// - Two-level BART structure for matching both source AND destination prefixes
-// - Level 1: Source prefix -> Level 2 (destination prefix -> rules)
-// - This reduces search space: only check destination prefixes for matching source prefixes
-type SubnetLookup struct {
-	mu sync.RWMutex
-	// Two-level BART structure:
-	// Level 1: Source prefix -> Level 2 (destination prefix -> rules)
-	// This allows us to first match source prefix, then only check destination prefixes
-	// for matching source prefixes, reducing the search space significantly
-	sourceTrie *bart.Table[*destTrie]
-}
-
-// destTrie is a BART for destination prefixes, containing the actual rules
-type destTrie struct {
-	trie  *bart.Table[[]*SubnetRule]
-	rules []*SubnetRule // All rules for this source prefix (for iteration if needed)
-}
-
-// NewSubnetLookup creates a new subnet lookup table using BART
-func NewSubnetLookup() *SubnetLookup {
-	return &SubnetLookup{
-		sourceTrie: &bart.Table[*destTrie]{},
-	}
-}
-
-// prefixEqual compares two prefixes after masking to handle host bits correctly.
-// For example, 10.0.0.5/24 and 10.0.0.0/24 are treated as equal.
-func prefixEqual(a, b netip.Prefix) bool {
-	return a.Masked() == b.Masked()
-}
-
-// AddSubnet adds a subnet rule to the lookup table.
-// If rule.PortRanges is nil or empty, all ports are allowed.
-// rule.RewriteTo can be either an IP/CIDR (e.g., "192.168.1.1/32") or a domain name (e.g., "example.com").
-// HTTP proxy behaviour is driven by rule.Protocol, rule.HTTPTargets, rule.TLSCert, and rule.TLSKey.
-func (sl *SubnetLookup) AddSubnet(rule SubnetRule) {
-	sl.mu.Lock()
-	defer sl.mu.Unlock()
-
-	sl.addSubnetLocked(rule)
-}
-
-// addSubnetLocked is the lock-free body of AddSubnet, factored out so
-// ReplaceAll can insert many rules under a single lock acquisition.
-// Callers must hold sl.mu for writing.
-func (sl *SubnetLookup) addSubnetLocked(rule SubnetRule) {
-	rulePtr := &rule
-
-	// Canonicalize source prefix to handle host bits correctly
-	canonicalSourcePrefix := rule.SourcePrefix.Masked()
-
-	// Get or create destination trie for this source prefix
-	destTriePtr, exists := sl.sourceTrie.Get(canonicalSourcePrefix)
-	if !exists {
-		// Create new destination trie for this source prefix
-		destTriePtr = &destTrie{
-			trie:  &bart.Table[[]*SubnetRule]{},
-			rules: make([]*SubnetRule, 0),
-		}
-		sl.sourceTrie.Insert(canonicalSourcePrefix, destTriePtr)
-	}
-
-	// Canonicalize destination prefix to handle host bits correctly
-	// BART masks prefixes internally, so we need to match that behavior in our bookkeeping
-	canonicalDestPrefix := rule.DestPrefix.Masked()
-
-	// Add rule to destination trie
-	// Original behavior: overwrite if same (sourcePrefix, destPrefix) exists
-	// Store as single-element slice to match original overwrite behavior
-	destTriePtr.trie.Insert(canonicalDestPrefix, []*SubnetRule{rulePtr})
-
-	// Update destTriePtr.rules - remove old rule with same canonical prefix if exists, then add new one
-	// Use canonical comparison to handle cases like 10.0.0.5/24 vs 10.0.0.0/24
-	newRules := make([]*SubnetRule, 0, len(destTriePtr.rules)+1)
-	for _, r := range destTriePtr.rules {
-		if !prefixEqual(r.DestPrefix, canonicalDestPrefix) || !prefixEqual(r.SourcePrefix, canonicalSourcePrefix) {
-			newRules = append(newRules, r)
-		}
-	}
-	newRules = append(newRules, rulePtr)
-	destTriePtr.rules = newRules
-}
-
-// ReplaceAll atomically replaces the entire rule set with the given rules.
-// This guarantees no stale rule can survive a sync, even when a rule's key
-// (SourcePrefix, DestPrefix) is unchanged but other fields (e.g. RewriteTo)
-// differ - a case that an add/remove diff keyed only on prefixes would miss.
-func (sl *SubnetLookup) ReplaceAll(rules []SubnetRule) {
-	sl.mu.Lock()
-	defer sl.mu.Unlock()
-
-	sl.sourceTrie = &bart.Table[*destTrie]{}
-
-	for _, rule := range rules {
-		sl.addSubnetLocked(rule)
-	}
-}
-
-// RemoveSubnet removes a subnet rule from the lookup table
-func (sl *SubnetLookup) RemoveSubnet(sourcePrefix, destPrefix netip.Prefix) {
-	sl.mu.Lock()
-	defer sl.mu.Unlock()
-
-	// Canonicalize prefixes to handle host bits correctly
-	canonicalSourcePrefix := sourcePrefix.Masked()
-	canonicalDestPrefix := destPrefix.Masked()
-
-	destTriePtr, exists := sl.sourceTrie.Get(canonicalSourcePrefix)
-	if !exists {
-		return
-	}
-
-	// Remove the rule - original behavior: delete exact (sourcePrefix, destPrefix) combination
-	// BART masks prefixes internally, so Delete works with canonical form
-	destTriePtr.trie.Delete(canonicalDestPrefix)
-
-	// Also remove from destTriePtr.rules using canonical comparison
-	// This ensures we remove rules even if they were added with host bits set
-	newDestRules := make([]*SubnetRule, 0, len(destTriePtr.rules))
-	for _, r := range destTriePtr.rules {
-		if !prefixEqual(r.DestPrefix, canonicalDestPrefix) || !prefixEqual(r.SourcePrefix, canonicalSourcePrefix) {
-			newDestRules = append(newDestRules, r)
-		}
-	}
-	destTriePtr.rules = newDestRules
-
-	// Check if the trie is actually empty using BART's Size() method
-	// This is more efficient than iterating and ensures we clean up empty tries
-	// even if there were stale entries in the rules slice (which shouldn't happen
-	// with proper canonicalization, but this provides a definitive check)
-	if destTriePtr.trie.Size() == 0 {
-		sl.sourceTrie.Delete(canonicalSourcePrefix)
-	}
-}
-
-// Match checks if a source IP, destination IP, port, and protocol match any subnet rule
-// Returns the matched rule if ALL of these conditions are met:
-//   - The source IP is in the rule's source prefix
-//   - The destination IP is in the rule's destination prefix
-//   - The port is in an allowed range (or no port restrictions exist)
-//   - The protocol matches (or the port range allows both protocols)
-//
-// proto should be header.TCPProtocolNumber, header.UDPProtocolNumber, or header.ICMPv4ProtocolNumber
-// Returns nil if no rule matches
-// This uses BART's Supernets() for O(log n) prefix matching instead of O(n) iteration
-func (sl *SubnetLookup) Match(srcIP, dstIP netip.Addr, port uint16, proto tcpip.TransportProtocolNumber) *SubnetRule {
-	sl.mu.RLock()
-	defer sl.mu.RUnlock()
-
-	// Convert IP addresses to /32 (IPv4) or /128 (IPv6) prefixes
-	// Supernets() finds all prefixes that contain this IP (i.e., are supernets of /32 or /128)
-	srcPrefix := netip.PrefixFrom(srcIP, srcIP.BitLen())
-	dstPrefix := netip.PrefixFrom(dstIP, dstIP.BitLen())
-
-	// Step 1: Find all source prefixes that contain srcIP using BART's Supernets
-	// This is O(log n) instead of O(n) iteration
-	// Supernets returns all prefixes that are supernets (contain) the given prefix
-	for _, destTriePtr := range sl.sourceTrie.Supernets(srcPrefix) {
-		if destTriePtr == nil {
-			continue
-		}
-
-		// Step 2: Find all destination prefixes that contain dstIP
-		// This is also O(log n) for each matching source prefix
-		for _, rules := range destTriePtr.trie.Supernets(dstPrefix) {
-			if rules == nil {
-				continue
-			}
-
-			// Step 3: Check each rule for ICMP and port restrictions
-			for _, rule := range rules {
-				// Handle ICMP before port range check — ICMP has no ports
-				if proto == header.ICMPv4ProtocolNumber || proto == header.ICMPv6ProtocolNumber {
-					if rule.DisableIcmp {
-						return nil
-					}
-					// ICMP is allowed; port ranges don't apply to ICMP
-					return rule
-				}
-
-				// Check port restrictions
-				if len(rule.PortRanges) == 0 {
-					// No port restrictions, match!
-					return rule
-				}
-
-				// Check if port and protocol are in any of the allowed ranges
-				for _, pr := range rule.PortRanges {
-					if port >= pr.Min && port <= pr.Max {
-						// Check protocol compatibility
-						if pr.Protocol == "" {
-							// Empty protocol means allow both TCP and UDP
-							return rule
-						}
-						// Check if the packet protocol matches the port range protocol
-						if (pr.Protocol == "tcp" && proto == header.TCPProtocolNumber) ||
-							(pr.Protocol == "udp" && proto == header.UDPProtocolNumber) {
-							return rule
-						}
-						// Port matches but protocol doesn't - continue checking other ranges
-					}
-				}
-			}
-		}
-	}
-
-	return nil
-}

netstack2/tun.go

@@ -1,3 +1,8 @@
+/* SPDX-License-Identifier: MIT
+ *
+ * Copyright (C) 2017-2025 WireGuard LLC. All Rights Reserved.
+ */
+
 package netstack2
 
 import (
@@ -346,13 +351,13 @@ func (net *Net) ListenUDP(laddr *net.UDPAddr) (*gonet.UDPConn, error) {
 	return net.DialUDP(laddr, nil)
 }
 
-// AddProxySubnetRule adds a subnet rule to the proxy handler.
-// HTTP proxy behaviour is configured via rule.Protocol, rule.HTTPTargets,
-// rule.TLSCert, and rule.TLSKey; leave Protocol empty for raw TCP/UDP.
-func (net *Net) AddProxySubnetRule(rule SubnetRule) {
+// AddProxySubnetRule adds a subnet rule to the proxy handler
+// If portRanges is nil or empty, all ports are allowed for this subnet
+// rewriteTo can be either an IP/CIDR (e.g., "192.168.1.1/32") or a domain name (e.g., "example.com")
+func (net *Net) AddProxySubnetRule(sourcePrefix, destPrefix netip.Prefix, rewriteTo string, portRanges []PortRange, disableIcmp bool) {
 	tun := (*netTun)(net)
 	if tun.proxyHandler != nil {
-		tun.proxyHandler.AddSubnetRule(rule)
+		tun.proxyHandler.AddSubnetRule(sourcePrefix, destPrefix, rewriteTo, portRanges, disableIcmp)
 	}
 }
 
@@ -364,24 +369,6 @@ func (net *Net) RemoveProxySubnetRule(sourcePrefix, destPrefix netip.Prefix) {
 	}
 }
 
-// ReplaceProxySubnetRules atomically replaces the full set of subnet rules
-// on the proxy handler with the given rules.
-func (net *Net) ReplaceProxySubnetRules(rules []SubnetRule) {
-	tun := (*netTun)(net)
-	if tun.proxyHandler != nil {
-		tun.proxyHandler.ReplaceAllSubnetRules(rules)
-	}
-}
-
-// GetProxySubnetRules returns all subnet rules from the proxy handler
-func (net *Net) GetProxySubnetRules() []SubnetRule {
-	tun := (*netTun)(net)
-	if tun.proxyHandler != nil {
-		return tun.proxyHandler.GetAllRules()
-	}
-	return nil
-}
-
 // GetProxyHandler returns the proxy handler (for advanced use cases)
 // Returns nil if proxy is not enabled
 func (net *Net) GetProxyHandler() *ProxyHandler {
@@ -389,25 +376,6 @@ func (net *Net) GetProxyHandler() *ProxyHandler {
 	return tun.proxyHandler
 }
 
-// SetAccessLogSender configures the function used to send compressed access log
-// batches to the server. This should be called once the websocket client is available.
-func (net *Net) SetAccessLogSender(fn SendFunc) {
-	tun := (*netTun)(net)
-	if tun.proxyHandler != nil {
-		tun.proxyHandler.SetAccessLogSender(fn)
-	}
-}
-
-// SetHTTPRequestLogSender configures the function used to send compressed HTTP
-// request log batches to the server. This should be called once the websocket
-// client is available.
-func (net *Net) SetHTTPRequestLogSender(fn SendFunc) {
-	tun := (*netTun)(net)
-	if tun.proxyHandler != nil {
-		tun.proxyHandler.SetHTTPRequestLogSender(fn)
-	}
-}
-
 type PingConn struct {
 	laddr    PingAddr
 	raddr    PingAddr

network/interface.go

@@ -120,7 +120,7 @@ func configureDarwin(interfaceName string, ip net.IP, ipNet *net.IPNet) error {
 	prefix, _ := ipNet.Mask.Size()
 	ipStr := fmt.Sprintf("%s/%d", ip.String(), prefix)
 
-	cmd := exec.Command("/sbin/ifconfig", interfaceName, "inet", ipStr, ip.String(), "alias")
+	cmd := exec.Command("ifconfig", interfaceName, "inet", ipStr, ip.String(), "alias")
 	logger.Info("Running command: %v", cmd)
 
 	out, err := cmd.CombinedOutput()
@@ -129,7 +129,7 @@ func configureDarwin(interfaceName string, ip net.IP, ipNet *net.IPNet) error {
 	}
 
 	// Bring up the interface
-	cmd = exec.Command("/sbin/ifconfig", interfaceName, "up")
+	cmd = exec.Command("ifconfig", interfaceName, "up")
 	logger.Info("Running command: %v", cmd)
 
 	out, err = cmd.CombinedOutput()

newt.iss

@@ -32,7 +32,7 @@ DefaultGroupName={#MyAppName}
 DisableProgramGroupPage=yes
 ; Uncomment the following line to run in non administrative install mode (install for current user only).
 ;PrivilegesRequired=lowest
-OutputBaseFilename=newt_windows_installer
+OutputBaseFilename=mysetup
 SolidCompression=yes
 WizardStyle=modern
 ; Add this to ensure PATH changes are applied and the system is prompted for a restart if needed

newt/authdaemon.go

@@ -1,60 +0,0 @@
-package newt
-
-import (
-	"context"
-	"fmt"
-	"os"
-	"runtime"
-
-	"github.com/fosrl/newt/authdaemon"
-	"github.com/fosrl/newt/logger"
-)
-
-const (
-	defaultPrincipalsPath = "/var/run/auth-daemon/principals"
-	defaultCACertPath     = "/etc/ssh/ca.pem"
-)
-
-func (n *Newt) startAuthDaemon(ctx context.Context) error {
-	if runtime.GOOS != "linux" {
-		return fmt.Errorf("auth-daemon is only supported on Linux, not %s", runtime.GOOS)
-	}
-	if os.Geteuid() != 0 {
-		return fmt.Errorf("auth-daemon must be run as root (use sudo)")
-	}
-
-	principalsFile := n.config.AuthDaemonPrincipalsFile
-	if principalsFile == "" {
-		principalsFile = defaultPrincipalsPath
-	}
-	caCertPath := n.config.AuthDaemonCACertPath
-	if caCertPath == "" {
-		caCertPath = defaultCACertPath
-	}
-
-	cfg := authdaemon.Config{
-		DisableHTTPS:           true,
-		PresharedKey:           "this-key-is-not-used",
-		PrincipalsFilePath:     principalsFile,
-		CACertPath:             caCertPath,
-		Force:                  true,
-		GenerateRandomPassword: n.config.AuthDaemonGenerateRandomPassword,
-	}
-
-	srv, err := authdaemon.NewServer(cfg)
-	if err != nil {
-		return fmt.Errorf("create auth daemon server: %w", err)
-	}
-
-	n.authDaemonServer = srv
-
-	go func() {
-		logger.Debug("Auth daemon starting (native mode, no HTTP server)")
-		if err := srv.Run(ctx); err != nil {
-			logger.Error("Auth daemon error: %v", err)
-		}
-		logger.Info("Auth daemon stopped")
-	}()
-
-	return nil
-}

newt/blueprint.go

@@ -1,127 +0,0 @@
-package newt
-
-import (
-	"context"
-	"encoding/json"
-	"os"
-	"regexp"
-	"strings"
-	"time"
-
-	"github.com/fosrl/newt/logger"
-	"github.com/fosrl/newt/websocket"
-	"github.com/fsnotify/fsnotify"
-	"gopkg.in/yaml.v3"
-)
-
-// interpolateBlueprint replaces {{env.VAR}} tokens with their environment variable values.
-func interpolateBlueprint(data []byte) []byte {
-	re := regexp.MustCompile(`\{\{([^}]+)\}\}`)
-	return re.ReplaceAllFunc(data, func(match []byte) []byte {
-		inner := strings.TrimSpace(string(match[2 : len(match)-2]))
-
-		if strings.HasPrefix(inner, "env.") {
-			varName := strings.TrimPrefix(inner, "env.")
-			return []byte(os.Getenv(varName))
-		}
-
-		return match
-	})
-}
-
-func sendBlueprint(client *websocket.Client, file string) error {
-	if file == "" {
-		return nil
-	}
-	blueprintData, err := os.ReadFile(file)
-	if err != nil {
-		logger.Error("Failed to read blueprint file: %v", err)
-		return nil
-	}
-
-	blueprintData = interpolateBlueprint(blueprintData)
-
-	var yamlObj interface{}
-	if err := yaml.Unmarshal(blueprintData, &yamlObj); err != nil {
-		logger.Error("Failed to parse blueprint YAML: %v", err)
-		return nil
-	}
-
-	jsonBytes, err := json.Marshal(yamlObj)
-	if err != nil {
-		logger.Error("Failed to convert blueprint to JSON: %v", err)
-		return nil
-	}
-
-	blueprintJsonData := string(jsonBytes)
-	logger.Debug("Converted blueprint to JSON: %s", blueprintJsonData)
-
-	if blueprintJsonData == "" {
-		logger.Error("No valid blueprint JSON data to send to server")
-		return nil
-	}
-
-	logger.Info("Sending blueprint to server for application")
-
-	return client.SendMessage("newt/blueprint/apply", map[string]interface{}{
-		"blueprint": blueprintJsonData,
-	})
-}
-
-func watchBlueprintFile(ctx context.Context, filePath string, send func() error) {
-	watcher, err := fsnotify.NewWatcher()
-	if err != nil {
-		logger.Error("blueprint watcher: failed to create: %v", err)
-		return
-	}
-	defer watcher.Close()
-
-	if err := watcher.Add(filePath); err != nil {
-		logger.Error("blueprint watcher: failed to watch %s: %v", filePath, err)
-		return
-	}
-
-	logger.Info("Watching blueprint file for changes: %s", filePath)
-
-	var debounce *time.Timer
-	scheduleSend := func() {
-		if debounce != nil {
-			debounce.Stop()
-		}
-		debounce = time.AfterFunc(500*time.Millisecond, func() {
-			logger.Info("Blueprint file changed, resending...")
-			if err := send(); err != nil {
-				logger.Error("blueprint watcher: resend failed: %v", err)
-			}
-		})
-	}
-
-	for {
-		select {
-		case <-ctx.Done():
-			if debounce != nil {
-				debounce.Stop()
-			}
-			return
-		case event, ok := <-watcher.Events:
-			if !ok {
-				return
-			}
-			switch {
-			case event.Has(fsnotify.Write) || event.Has(fsnotify.Create):
-				if event.Has(fsnotify.Create) {
-					_ = watcher.Add(filePath)
-				}
-				scheduleSend()
-			case event.Has(fsnotify.Remove) || event.Has(fsnotify.Rename):
-				_ = watcher.Add(filePath)
-				scheduleSend()
-			}
-		case err, ok := <-watcher.Errors:
-			if !ok {
-				return
-			}
-			logger.Error("blueprint watcher: %v", err)
-		}
-	}
-}

newt/clients.go

@@ -1,114 +0,0 @@
-package newt
-
-import (
-	"strings"
-
-	wgnetstack "github.com/fosrl/newt/clients"
-	"github.com/fosrl/newt/clients/permissions"
-	"github.com/fosrl/newt/logger"
-	"golang.zx2c4.com/wireguard/tun/netstack"
-)
-
-func checkNativeMainPermissions() error {
-	return permissions.CheckNativeInterfacePermissions()
-}
-
-func (n *Newt) setupClients() {
-	host := n.config.Endpoint
-	if strings.HasPrefix(host, "http://") {
-		host = strings.TrimPrefix(host, "http://")
-	} else if strings.HasPrefix(host, "https://") {
-		host = strings.TrimPrefix(host, "https://")
-	}
-	host = strings.TrimSuffix(host, "/")
-
-	logger.Debug("Setting up clients with netstack2...")
-
-	if n.config.UseNativeInterface {
-		logger.Debug("Checking permissions for native interface")
-		if err := permissions.CheckNativeInterfacePermissions(); err != nil {
-			logger.Fatal("Insufficient permissions to create native TUN interface: %v", err)
-			return
-		}
-	}
-
-	var err error
-	n.wgService, err = wgnetstack.NewWireGuardService(
-		n.config.InterfaceName,
-		n.config.Port,
-		n.config.MTU,
-		host,
-		n.config.ID,
-		n.client,
-		n.config.DNS,
-		n.config.UseNativeInterface,
-	)
-	if err != nil {
-		logger.Fatal("Failed to create WireGuard service: %v", err)
-	}
-
-	n.wgService.SetCredentialStore(n.sshCredStore)
-
-	n.client.OnTokenUpdate(func(token string) {
-		n.wgService.SetToken(token)
-	})
-
-	n.ready = true
-}
-
-func (n *Newt) setDownstreamTNetstack(tnet *netstack.Net) {
-	if n.wgService != nil {
-		n.wgService.SetOthertnet(tnet)
-	}
-}
-
-func (n *Newt) closeClients() {
-	logger.Info("Closing clients...")
-	if n.wgService != nil {
-		n.wgService.Close()
-		n.wgService = nil
-	}
-}
-
-func (n *Newt) setClientsBlocked(v bool) {
-	if n.wgService != nil {
-		n.wgService.SetBlocked(v)
-	}
-}
-
-func (n *Newt) clientsHandleNewtConnection(publicKey string, endpoint string, relayPort uint16) {
-	if !n.ready {
-		return
-	}
-
-	parts := strings.Split(endpoint, ":")
-	if len(parts) < 2 {
-		logger.Error("Invalid endpoint format: %s", endpoint)
-		return
-	}
-	endpoint = strings.Join(parts[:len(parts)-1], ":")
-
-	if n.wgService != nil {
-		n.wgService.StartHolepunch(publicKey, endpoint, relayPort)
-	}
-}
-
-func (n *Newt) clientsOnConnect() {
-	if !n.ready {
-		return
-	}
-	if n.wgService != nil {
-		n.wgService.LoadRemoteConfig()
-	}
-}
-
-func (n *Newt) clientsStartDirectRelay(tunnelIP string) {
-	if !n.ready {
-		return
-	}
-	if n.wgService != nil {
-		if err := n.wgService.StartDirectUDPRelay(tunnelIP); err != nil {
-			logger.Error("Failed to start direct UDP relay: %v", err)
-		}
-	}
-}

newt/config.go

@@ -1,73 +0,0 @@
-package newt
-
-import "time"
-
-// Config holds all runtime configuration for a Newt instance.
-type Config struct {
-	// Build info
-	Version  string
-	Platform string
-
-	// Logging
-	LogLevel string
-
-	// Connection
-	Endpoint        string
-	ID              string
-	Secret          string
-	ProvisioningKey string
-	NewtName        string
-	ConfigFile      string
-
-	// Network
-	MTU                     int
-	DNS                     string
-	InterfaceName           string
-	Port                    uint16
-	UseNativeInterface      bool
-	UseNativeMainInterface  bool
-	NativeMainInterfaceName string
-	NoCloud                 bool
-	PreferEndpoint          string
-
-	// Timing
-	PingInterval        time.Duration
-	PingTimeout         time.Duration
-	UDPProxyIdleTimeout time.Duration
-
-	// Features
-	DisableClients            bool
-	DisableSSH                bool
-	EnforceHealthcheckCert    bool
-	HealthFile                string
-	BlueprintFile             string
-	ProvisioningBlueprintFile string
-	UpdownScript              string
-
-	// Docker
-	DockerSocket                   string
-	DockerEnforceNetworkValidation bool
-
-	// Auth daemon
-	AuthDaemonKey                    string
-	AuthDaemonPrincipalsFile         string
-	AuthDaemonCACertPath             string
-	AuthDaemonGenerateRandomPassword bool
-
-	// TLS (mTLS)
-	TLSClientCert string
-	TLSClientKey  string
-	TLSClientCAs  []string
-	TLSPrivateKey string
-
-	// Metrics/observability
-	MetricsEnabled    bool
-	OTLPEnabled       bool
-	AdminAddr         string
-	Region            string
-	MetricsAsyncBytes bool
-	PprofEnabled      bool
-
-	// Callbacks
-	OnRestart func() error
-}

newt/connect.go

@@ -1,351 +0,0 @@
-package newt
-
-import (
-	"context"
-	"encoding/json"
-	"fmt"
-	"net"
-	"net/netip"
-	"runtime"
-	"time"
-
-	"github.com/fosrl/newt/browsergateway"
-	newtDevice "github.com/fosrl/newt/device"
-	"github.com/fosrl/newt/internal/telemetry"
-	"github.com/fosrl/newt/logger"
-	"github.com/fosrl/newt/network"
-	"github.com/fosrl/newt/proxy"
-	"github.com/fosrl/newt/util"
-	"github.com/fosrl/newt/websocket"
-	"golang.zx2c4.com/wireguard/conn"
-	"golang.zx2c4.com/wireguard/device"
-	wtun "golang.zx2c4.com/wireguard/tun"
-	"golang.zx2c4.com/wireguard/tun/netstack"
-)
-
-func (n *Newt) handleConnect(ctx context.Context, msg websocket.WSMessage) {
-	logger.Debug("Received registration message")
-	regResult := "success"
-	defer func() {
-		telemetry.IncSiteRegistration(ctx, regResult)
-	}()
-
-	var chainData struct {
-		ChainId string `json:"chainId"`
-	}
-	if jsonBytes, err := json.Marshal(msg.Data); err == nil {
-		_ = json.Unmarshal(jsonBytes, &chainData)
-	}
-	if chainData.ChainId != "" {
-		if chainData.ChainId != n.pendingRegisterChainId {
-			logger.Debug("Discarding duplicate/stale newt/wg/connect (chainId=%s, expected=%s)", chainData.ChainId, n.pendingRegisterChainId)
-			return
-		}
-		n.pendingRegisterChainId = ""
-	}
-
-	if n.stopFunc != nil {
-		n.stopFunc()
-		n.stopFunc = nil
-	}
-
-	if n.connected {
-		n.closeWgTunnel()
-		n.connected = false
-	}
-
-	logger.Debug("Received registration message data: %+v", msg.Data)
-
-	jsonData, err := json.Marshal(msg.Data)
-	if err != nil {
-		logger.Info(fmtErrMarshaling, err)
-		regResult = "failure"
-		return
-	}
-
-	if err := json.Unmarshal(jsonData, &n.wgData); err != nil {
-		logger.Info("Error unmarshaling target data: %v", err)
-		regResult = "failure"
-		return
-	}
-
-	logger.Debug(fmtReceivedMsg, msg)
-
-	if n.config.UseNativeMainInterface {
-		mainIfName := n.config.NativeMainInterfaceName
-		if runtime.GOOS == "darwin" {
-			mainIfName, err = network.FindUnusedUTUN()
-			if err != nil {
-				logger.Error("Failed to find unused utun for main tunnel: %v", err)
-				regResult = "failure"
-				return
-			}
-		}
-		n.tun, err = wtun.CreateTUN(mainIfName, n.config.MTU)
-		if err != nil {
-			logger.Error("Failed to create native main TUN device: %v", err)
-			regResult = "failure"
-			return
-		}
-		if realName, nameErr := n.tun.Name(); nameErr == nil {
-			mainIfName = realName
-		}
-		n.tnet = nil
-		n.config.NativeMainInterfaceName = mainIfName
-	} else {
-		n.tun, n.tnet, err = netstack.CreateNetTUN(
-			[]netip.Addr{netip.MustParseAddr(n.wgData.TunnelIP)},
-			[]netip.Addr{netip.MustParseAddr(n.config.DNS)},
-			n.config.MTU)
-		if err != nil {
-			logger.Error("Failed to create TUN device: %v", err)
-			regResult = "failure"
-		}
-	}
-
-	n.setDownstreamTNetstack(n.tnet)
-
-	n.dev = device.NewDevice(n.tun, conn.NewDefaultBind(), device.NewLogger(
-		util.MapToWireGuardLogLevel(n.loggerLevel),
-		"gerbil-wireguard: ",
-	))
-
-	host, _, err := net.SplitHostPort(n.wgData.Endpoint)
-	if err != nil {
-		logger.Error("Failed to split endpoint: %v", err)
-		regResult = "failure"
-		return
-	}
-
-	logger.Info("Connecting to endpoint: %s", host)
-
-	resolvedEndpoint, err := util.ResolveDomain(n.wgData.Endpoint)
-	if err != nil {
-		logger.Error("Failed to resolve endpoint: %v", err)
-		regResult = "failure"
-		return
-	}
-
-	relayPort := n.wgData.RelayPort
-	if relayPort == 0 {
-		relayPort = 21820
-	}
-
-	n.clientsHandleNewtConnection(n.wgData.PublicKey, resolvedEndpoint, relayPort)
-
-	wgConfig := fmt.Sprintf(`private_key=%s
-public_key=%s
-allowed_ip=%s/32
-endpoint=%s
-persistent_keepalive_interval=5`, util.FixKey(n.privateKey.String()), util.FixKey(n.wgData.PublicKey), n.wgData.ServerIP, resolvedEndpoint)
-
-	if err = n.dev.IpcSet(wgConfig); err != nil {
-		logger.Error("Failed to configure WireGuard device: %v", err)
-		regResult = "failure"
-	}
-
-	if err = n.dev.Up(); err != nil {
-		logger.Error("Failed to bring up WireGuard device: %v", err)
-		regResult = "failure"
-	}
-
-	if n.config.UseNativeMainInterface {
-		if cfgErr := network.ConfigureInterface(n.config.NativeMainInterfaceName, n.wgData.TunnelIP+"/32", n.config.MTU); cfgErr != nil {
-			logger.Error("Failed to configure native main tunnel interface: %v", cfgErr)
-		}
-		if routeErr := network.AddRoutes([]string{n.wgData.ServerIP + "/32"}, n.config.NativeMainInterfaceName); routeErr != nil {
-			logger.Warn("Failed to add route for main tunnel server IP: %v", routeErr)
-		}
-		if fileUAPI, uapiErr := newtDevice.UapiOpen(n.config.NativeMainInterfaceName); uapiErr != nil {
-			logger.Warn("Main tunnel UAPI open error: %v", uapiErr)
-		} else if uapiListener, uapiListenErr := newtDevice.UapiListen(n.config.NativeMainInterfaceName, fileUAPI); uapiListenErr != nil {
-			logger.Warn("Main tunnel UAPI listen error: %v", uapiListenErr)
-		} else {
-			go func() {
-				for {
-					c, aErr := uapiListener.Accept()
-					if aErr != nil {
-						return
-					}
-					go n.dev.IpcHandle(c)
-				}
-			}()
-			logger.Debug("Main tunnel UAPI listener started on %s", n.config.NativeMainInterfaceName)
-		}
-	}
-
-	n.activeRemoteSubnets = nil
-	if len(n.wgData.RemoteExitNodeSubnets) > 0 {
-		for _, subnet := range n.wgData.RemoteExitNodeSubnets {
-			subnetCfg := fmt.Sprintf("public_key=%s\nallowed_ip=%s", util.FixKey(n.wgData.PublicKey), subnet)
-			if err := n.dev.IpcSet(subnetCfg); err != nil {
-				logger.Warn("Failed to add AllowedIP %s to main tunnel: %v", subnet, err)
-			}
-		}
-		if n.config.UseNativeMainInterface {
-			if routeErr := network.AddRoutes(n.wgData.RemoteExitNodeSubnets, n.config.NativeMainInterfaceName); routeErr != nil {
-				logger.Warn("Failed to add routes for remote exit node subnets: %v", routeErr)
-			}
-		}
-		n.activeRemoteSubnets = append([]string{}, n.wgData.RemoteExitNodeSubnets...)
-		logger.Debug("Added %d remote exit node subnets", len(n.wgData.RemoteExitNodeSubnets))
-	}
-
-	logger.Debug("WireGuard device created. Lets ping the server now...")
-
-	if n.pingWithRetryStopChan != nil {
-		close(n.pingWithRetryStopChan)
-		n.pingWithRetryStopChan = nil
-	}
-
-	var pinger pingFunc
-	if n.config.UseNativeMainInterface {
-		pinger = pingNative
-	} else {
-		pinger = func(dst string, timeout time.Duration) (time.Duration, error) {
-			return ping(n.tnet, dst, timeout)
-		}
-	}
-
-	logger.Debug("Testing initial connection with reliable ping...")
-	lat, err := reliablePing(pinger, n.wgData.ServerIP, n.config.PingTimeout, 5)
-	if err == nil && n.wgData.PublicKey != "" {
-		telemetry.ObserveTunnelLatency(ctx, n.wgData.PublicKey, "wireguard", lat.Seconds())
-	}
-	if err != nil {
-		logger.Warn("Initial reliable ping failed, but continuing: %v", err)
-		regResult = "failure"
-	} else {
-		logger.Debug("Initial connection test successful")
-	}
-
-	n.pingWithRetryStopChan, _ = n.pingWithRetry(pinger, n.wgData.ServerIP, n.config.PingTimeout)
-
-	if !n.connected {
-		logger.Debug("Starting ping check")
-		n.pingStopChan = n.startPingCheck(pinger, n.wgData.ServerIP, n.wgData.PublicKey)
-	}
-
-	if n.config.UseNativeMainInterface {
-		n.pm = proxy.NewProxyManagerNative(n.wgData.TunnelIP)
-	} else {
-		n.pm = proxy.NewProxyManager(n.tnet)
-	}
-	n.pm.SetAsyncBytes(n.config.MetricsAsyncBytes)
-	n.pm.SetUDPIdleTimeout(n.config.UDPProxyIdleTimeout)
-	n.pm.SetTunnelID(n.wgData.PublicKey)
-	n.pm.SetBlocked(n.connectionBlocked.Load())
-	n.currentPM.Store(n.pm)
-
-	n.connected = true
-
-	if len(n.wgData.Targets.TCP) > 0 {
-		n.updateTargets(n.pm, "add", n.wgData.TunnelIP, "tcp", TargetData{Targets: n.wgData.Targets.TCP})
-	}
-	if len(n.wgData.Targets.UDP) > 0 {
-		n.updateTargets(n.pm, "add", n.wgData.TunnelIP, "udp", TargetData{Targets: n.wgData.Targets.UDP})
-	}
-
-	if !n.config.UseNativeMainInterface {
-		n.clientsStartDirectRelay(n.wgData.TunnelIP)
-	}
-
-	if err := n.healthMonitor.AddTargets(n.wgData.HealthCheckTargets); err != nil {
-		logger.Error("Failed to bulk add health check targets: %v", err)
-	} else {
-		logger.Debug("Successfully added %d health check targets", len(n.wgData.HealthCheckTargets))
-	}
-
-	if err = n.pm.Start(); err != nil {
-		logger.Error("Failed to start proxy manager: %v", err)
-	}
-
-	if len(n.wgData.BrowserGatewayTargets) > 0 {
-		// The netstack is fresh on (re)connect, so any previously running
-		// gateway listener is bound to a now-defunct interface - tear it down.
-		if n.browserGatewayStop != nil {
-			n.browserGatewayStop()
-			n.browserGatewayStop = nil
-			n.browserGateway = nil
-		}
-
-		if err := n.startBrowserGateway(); err != nil {
-			logger.Error("Failed to start browser gateway listener: %v", err)
-		} else {
-			n.browserGateway.SetTargets(toBrowserGatewayTargets(n.wgData.BrowserGatewayTargets))
-		}
-	}
-}
-
-// startBrowserGateway creates the browser gateway and its listener if one
-// isn't already running. Callers that need to rebind to a fresh netstack
-// (e.g. on reconnect) must stop and clear any existing gateway first.
-func (n *Newt) startBrowserGateway() error {
-	if n.browserGateway != nil {
-		return nil
-	}
-	if n.tnet == nil && !n.config.UseNativeMainInterface {
-		return fmt.Errorf("netstack not ready")
-	}
-
-	gateway := browsergateway.New(browsergateway.Config{SSHCredentials: n.sshCredStore})
-
-	var ln net.Listener
-	var err error
-	if n.config.UseNativeMainInterface {
-		ln, err = net.Listen("tcp", fmt.Sprintf("%s:%d", n.wgData.TunnelIP, browsergateway.ListenPort))
-	} else {
-		ln, err = n.tnet.ListenTCP(&net.TCPAddr{Port: browsergateway.ListenPort})
-	}
-	if err != nil {
-		return err
-	}
-
-	n.browserGateway = gateway
-	n.browserGatewayStop = func() { _ = ln.Close() }
-	go func() {
-		logger.Debug("Browser gateway started on port %d", browsergateway.ListenPort)
-		if startErr := gateway.Start(ln); startErr != nil {
-			logger.Error("Browser gateway stopped with error: %v", startErr)
-		}
-	}()
-
-	return nil
-}
-
-// syncBrowserGatewayTargets reconciles the browser gateway's allowed
-// destinations with the desired state received from a sync message.
-// It lazily starts the gateway if targets are present and it isn't running
-// yet, and clears the allow-list (without tearing down the listener) when
-// no targets are desired.
-func (n *Newt) syncBrowserGatewayTargets(targets []BrowserGatewayTarget) {
-	bgTargets := toBrowserGatewayTargets(targets)
-
-	if len(bgTargets) == 0 {
-		if n.browserGateway != nil {
-			n.browserGateway.SetTargets(nil)
-		}
-		return
-	}
-
-	if err := n.startBrowserGateway(); err != nil {
-		logger.Error("Failed to start browser gateway: %v", err)
-		return
-	}
-
-	n.browserGateway.SetTargets(bgTargets)
-}
-
-func toBrowserGatewayTargets(targets []BrowserGatewayTarget) []browsergateway.Target {
-	bgTargets := make([]browsergateway.Target, 0, len(targets))
-	for _, t := range targets {
-		bgTargets = append(bgTargets, browsergateway.Target{
-			ID:              t.ID,
-			Type:            t.Type,
-			Destination:     t.Destination,
-			DestinationPort: t.DestinationPort,
-			AuthToken:       t.AuthToken,
-		})
-	}
-	return bgTargets
-}

newt/data.go

@@ -1,161 +0,0 @@
-package newt
-
-import (
-	"encoding/json"
-	"fmt"
-	"strings"
-
-	"github.com/fosrl/newt/logger"
-	"github.com/fosrl/newt/websocket"
-)
-
-func (n *Newt) handleSync(msg websocket.WSMessage) {
-	logger.Info("Received sync message")
-
-	// if there is no wgData or pm, we can't sync targets
-	if n.wgData.TunnelIP == "" || n.pm == nil {
-		logger.Info(msgNoTunnelOrProxy)
-		return
-	}
-
-	var syncData SyncData
-	jsonData, err := json.Marshal(msg.Data)
-	if err != nil {
-		logger.Error("Error marshaling sync data: %v", err)
-		return
-	}
-
-	if err := json.Unmarshal(jsonData, &syncData); err != nil {
-		logger.Error("Error unmarshaling sync data: %v", err)
-		return
-	}
-
-	logger.Debug("Sync data received: TCP targets=%d, UDP targets=%d, health check targets=%d",
-		len(syncData.Targets.TCP), len(syncData.Targets.UDP), len(syncData.HealthCheckTargets))
-
-	// Build sets of desired targets (port -> target string)
-	desiredTCP := make(map[int]string)
-	for _, t := range syncData.Targets.TCP {
-		parts := strings.Split(t, ":")
-		if len(parts) != 3 {
-			logger.Warn("Invalid TCP target format: %s", t)
-			continue
-		}
-		port := 0
-		if _, err := fmt.Sscanf(parts[0], "%d", &port); err != nil {
-			logger.Warn("Invalid port in TCP target: %s", parts[0])
-			continue
-		}
-		desiredTCP[port] = parts[1] + ":" + parts[2]
-	}
-
-	desiredUDP := make(map[int]string)
-	for _, t := range syncData.Targets.UDP {
-		parts := strings.Split(t, ":")
-		if len(parts) != 3 {
-			logger.Warn("Invalid UDP target format: %s", t)
-			continue
-		}
-		port := 0
-		if _, err := fmt.Sscanf(parts[0], "%d", &port); err != nil {
-			logger.Warn("Invalid port in UDP target: %s", parts[0])
-			continue
-		}
-		desiredUDP[port] = parts[1] + ":" + parts[2]
-	}
-
-	// Get current targets from proxy manager
-	currentTCP, currentUDP := n.pm.GetTargets()
-
-	// Sync TCP targets
-	// Remove TCP targets not in desired set
-	if tcpForIP, ok := currentTCP[n.wgData.TunnelIP]; ok {
-		for port := range tcpForIP {
-			if _, exists := desiredTCP[port]; !exists {
-				logger.Info("Sync: removing TCP target on port %d", port)
-				targetStr := fmt.Sprintf("%d:%s", port, tcpForIP[port])
-				n.updateTargets(n.pm, "remove", n.wgData.TunnelIP, "tcp", TargetData{Targets: []string{targetStr}})
-			}
-		}
-	}
-
-	// Add TCP targets that are missing
-	for port, target := range desiredTCP {
-		needsAdd := true
-		if tcpForIP, ok := currentTCP[n.wgData.TunnelIP]; ok {
-			if currentTarget, exists := tcpForIP[port]; exists {
-				// Check if target address changed
-				if currentTarget == target {
-					needsAdd = false
-				} else {
-					// Target changed, remove old one first
-					logger.Info("Sync: updating TCP target on port %d", port)
-					targetStr := fmt.Sprintf("%d:%s", port, currentTarget)
-					n.updateTargets(n.pm, "remove", n.wgData.TunnelIP, "tcp", TargetData{Targets: []string{targetStr}})
-				}
-			}
-		}
-		if needsAdd {
-			logger.Info("Sync: adding TCP target on port %d -> %s", port, target)
-			targetStr := fmt.Sprintf("%d:%s", port, target)
-			n.updateTargets(n.pm, "add", n.wgData.TunnelIP, "tcp", TargetData{Targets: []string{targetStr}})
-		}
-	}
-
-	// Sync UDP targets
-	// Remove UDP targets not in desired set
-	if udpForIP, ok := currentUDP[n.wgData.TunnelIP]; ok {
-		for port := range udpForIP {
-			if _, exists := desiredUDP[port]; !exists {
-				logger.Info("Sync: removing UDP target on port %d", port)
-				targetStr := fmt.Sprintf("%d:%s", port, udpForIP[port])
-				n.updateTargets(n.pm, "remove", n.wgData.TunnelIP, "udp", TargetData{Targets: []string{targetStr}})
-			}
-		}
-	}
-
-	// Add UDP targets that are missing
-	for port, target := range desiredUDP {
-		needsAdd := true
-		if udpForIP, ok := currentUDP[n.wgData.TunnelIP]; ok {
-			if currentTarget, exists := udpForIP[port]; exists {
-				// Check if target address changed
-				if currentTarget == target {
-					needsAdd = false
-				} else {
-					// Target changed, remove old one first
-					logger.Info("Sync: updating UDP target on port %d", port)
-					targetStr := fmt.Sprintf("%d:%s", port, currentTarget)
-					n.updateTargets(n.pm, "remove", n.wgData.TunnelIP, "udp", TargetData{Targets: []string{targetStr}})
-				}
-			}
-		}
-		if needsAdd {
-			logger.Info("Sync: adding UDP target on port %d -> %s", port, target)
-			targetStr := fmt.Sprintf("%d:%s", port, target)
-			n.updateTargets(n.pm, "add", n.wgData.TunnelIP, "udp", TargetData{Targets: []string{targetStr}})
-		}
-	}
-
-	// Sync remote exit node subnets
-	if n.dev != nil {
-		n.updateRemoteExitNodeSubnets(syncData.RemoteExitNodeSubnets)
-	}
-
-	// Sync clients WireGuard peers and targets, if clients are set up
-	if n.wgService != nil {
-		n.wgService.Sync(syncData.Peers, syncData.ClientTargets)
-	}
-
-	// Sync browser gateway targets
-	n.syncBrowserGatewayTargets(syncData.BrowserGatewayTargets)
-
-	// Sync health check targets
-	if err := n.healthMonitor.SyncTargets(syncData.HealthCheckTargets); err != nil {
-		logger.Error("Failed to sync health check targets: %v", err)
-	} else {
-		logger.Info("Successfully synced health check targets")
-	}
-
-	logger.Info("Sync complete")
-}

newt/newt.go

@@ -1,291 +0,0 @@
-package newt
-
-import (
-	"context"
-	"crypto/rand"
-	"encoding/hex"
-	"fmt"
-	"sync/atomic"
-	"time"
-
-	"github.com/fosrl/newt/authdaemon"
-	"github.com/fosrl/newt/browsergateway"
-	wgclients "github.com/fosrl/newt/clients"
-	"github.com/fosrl/newt/docker"
-	"github.com/fosrl/newt/healthcheck"
-	"github.com/fosrl/newt/logger"
-	"github.com/fosrl/newt/nativessh"
-	"github.com/fosrl/newt/proxy"
-	"github.com/fosrl/newt/util"
-	"github.com/fosrl/newt/websocket"
-	"golang.zx2c4.com/wireguard/device"
-	wtun "golang.zx2c4.com/wireguard/tun"
-	"golang.zx2c4.com/wireguard/tun/netstack"
-	"golang.zx2c4.com/wireguard/wgctrl/wgtypes"
-)
-
-// Newt holds all runtime state for a newt tunnel instance.
-type Newt struct {
-	config      Config
-	client      *websocket.Client
-	privateKey  wgtypes.Key
-	publicKey   wgtypes.Key
-	loggerLevel logger.LogLevel
-	tlsOpt      websocket.ClientOption
-
-	// WireGuard tunnel state
-	tun  wtun.Device
-	tnet *netstack.Net
-	dev  *device.Device
-
-	// Proxy / networking
-	pm                  *proxy.ProxyManager
-	currentPM           atomic.Pointer[proxy.ProxyManager]
-	connectionBlocked   atomic.Bool
-	activeRemoteSubnets []string
-
-	// Ping state
-	pingStopChan          chan struct{}
-	pingWithRetryStopChan chan struct{}
-
-	// Connection / messaging state
-	connected              bool
-	stopFunc               func()
-	pendingRegisterChainId string
-	pendingPingChainId     string
-
-	// Browser gateway
-	browserGateway     *browsergateway.Gateway
-	browserGatewayStop func()
-
-	// Health monitoring
-	healthMonitor *healthcheck.Monitor
-
-	// Downstream WireGuard client management
-	wgService    *wgclients.WireGuardService
-	ready        bool
-	sshCredStore *nativessh.CredentialStore
-
-	// Auth daemon (Linux only)
-	authDaemonServer *authdaemon.Server
-
-	// Docker monitoring
-	dockerEventMonitor *docker.EventMonitor
-
-	// Current tunnel data
-	wgData WgData
-}
-
-// Init creates and initialises a Newt instance. It sets up the websocket
-// client, generates WireGuard keys, and starts the auth daemon if enabled.
-// Callers should invoke Start after any additional setup (telemetry, etc.).
-func Init(ctx context.Context, cfg Config) (*Newt, error) {
-	n := &Newt{config: cfg}
-
-	n.loggerLevel = util.ParseLogLevel(cfg.LogLevel)
-
-	if !cfg.DisableSSH {
-		if err := n.startAuthDaemon(ctx); err != nil {
-			logger.Warn("Did not start on site auth daemon: %v", err)
-		}
-	}
-
-	logger.GetLogger().SetLevel(n.loggerLevel)
-
-	if cfg.TLSPrivateKey != "" {
-		logger.Warn("Using deprecated PKCS12 format for mTLS. Consider migrating to separate certificate files using --tls-client-cert-file, --tls-client-key, and --tls-client-ca")
-	}
-
-	privateKey, err := wgtypes.GeneratePrivateKey()
-	if err != nil {
-		return nil, fmt.Errorf("generate private key: %w", err)
-	}
-	n.privateKey = privateKey
-
-	if cfg.TLSClientCert != "" && cfg.TLSClientKey != "" {
-		n.tlsOpt = websocket.WithTLSConfig(websocket.TLSConfig{
-			ClientCertFile: cfg.TLSClientCert,
-			ClientKeyFile:  cfg.TLSClientKey,
-			CAFiles:        cfg.TLSClientCAs,
-		})
-		logger.Debug("Using separate certificate files for mTLS")
-		logger.Debug("Client cert: %s", cfg.TLSClientCert)
-		logger.Debug("Client key: %s", cfg.TLSClientKey)
-		logger.Debug("CA files: %v", cfg.TLSClientCAs)
-	} else if cfg.TLSPrivateKey != "" {
-		n.tlsOpt = websocket.WithTLSConfig(websocket.TLSConfig{
-			PKCS12File: cfg.TLSPrivateKey,
-		})
-		logger.Debug("Using PKCS12 file for mTLS: %s", cfg.TLSPrivateKey)
-	}
-
-	client, err := websocket.NewClient(
-		"newt",
-		cfg.ID,
-		cfg.Secret,
-		cfg.Endpoint,
-		30*time.Second,
-		n.tlsOpt,
-		websocket.WithConfigFile(cfg.ConfigFile),
-	)
-	if err != nil {
-		return nil, fmt.Errorf("create websocket client: %w", err)
-	}
-	n.client = client
-
-	client.GetConfig().ProvisioningKey = cfg.ProvisioningKey
-	client.GetConfig().Name = cfg.NewtName
-
-	// Resolve provisioning synchronously so ID/Secret are final before
-	// setupClients() bakes them into the WireGuard service / hole-punch
-	// manager. Connect() only provisions lazily in the background, which
-	// would otherwise race setupClients() on first run.
-	if err := client.EnsureProvisioned(); err != nil {
-		return nil, fmt.Errorf("provision newt credentials: %w", err)
-	}
-
-	// Update config from resolved client values (provisioning / config file).
-	n.config.Endpoint = client.GetConfig().Endpoint
-	n.config.ID = client.GetConfig().ID
-	n.config.Secret = client.GetConfig().Secret
-
-	if !cfg.DisableSSH {
-		n.sshCredStore = nativessh.NewCredentialStore()
-	}
-
-	return n, nil
-}
-
-// GetConfig returns the (potentially resolved) configuration.
-func (n *Newt) GetConfig() Config {
-	return n.config
-}
-
-// GetTLSClientOpt returns the websocket TLS option, so callers can reuse the
-// same TLS configuration for other HTTP clients (e.g. self-update).
-func (n *Newt) GetTLSClientOpt() websocket.ClientOption {
-	return n.tlsOpt
-}
-
-// Start sets up all WebSocket handlers, connects to the server, and blocks
-// until ctx is cancelled.
-func (n *Newt) Start(ctx context.Context) {
-	if !n.config.DisableClients {
-		n.setupClients()
-	}
-
-	n.connectionBlocked.Store(n.client.GetConfig().Blocked)
-	if n.connectionBlocked.Load() {
-		logger.Info("Connection blocking is enabled (from config)")
-		n.setClientsBlocked(true)
-	}
-
-	n.healthMonitor = healthcheck.NewMonitor(func(targets map[int]*healthcheck.Target) {
-		logger.Debug("Health check status update for %d targets", len(targets))
-
-		healthStatuses := make(map[int]interface{})
-		for id, target := range targets {
-			healthStatuses[id] = map[string]interface{}{
-				"status":     target.Status.String(),
-				"lastCheck":  target.LastCheck.Format(time.RFC3339),
-				"checkCount": target.CheckCount,
-				"lastError":  target.LastError,
-				"config":     target.Config,
-			}
-		}
-
-		logger.Debug("Health check status: %+v", healthStatuses)
-
-		if err := n.client.SendMessage("newt/healthcheck/status", map[string]interface{}{
-			"targets": healthStatuses,
-		}); err != nil {
-			logger.Error("Failed to send health check status update: %v", err)
-		}
-	}, n.config.EnforceHealthcheckCert)
-
-	n.registerHandlers(ctx)
-
-	if err := n.client.Connect(); err != nil {
-		logger.Fatal("Failed to connect to server: %v", err)
-	}
-	defer n.client.Close()
-
-	if n.config.DockerSocket != "" {
-		logger.Debug("Initializing Docker event monitoring")
-		var err error
-		n.dockerEventMonitor, err = docker.NewEventMonitor(
-			n.config.DockerSocket,
-			n.config.DockerEnforceNetworkValidation,
-			func(containers []docker.Container) {
-				logger.Debug("Docker event detected, sending updated container list (%d containers)", len(containers))
-				if err := n.client.SendMessage("newt/socket/containers", map[string]interface{}{
-					"containers": containers,
-				}); err != nil {
-					logger.Error("Failed to send updated container list after Docker event: %v", err)
-				} else {
-					logger.Debug("Updated container list sent successfully")
-				}
-			})
-		if err != nil {
-			logger.Error("Failed to create Docker event monitor: %v", err)
-		} else {
-			if err := n.dockerEventMonitor.Start(); err != nil {
-				logger.Error("Failed to start Docker event monitoring: %v", err)
-			} else {
-				logger.Debug("Docker event monitoring started successfully")
-			}
-		}
-	}
-
-	if n.config.BlueprintFile != "" {
-		go watchBlueprintFile(ctx, n.config.BlueprintFile, func() error {
-			return sendBlueprint(n.client, n.config.BlueprintFile)
-		})
-	}
-
-	<-ctx.Done()
-
-	n.closeClients()
-
-	if n.dockerEventMonitor != nil {
-		n.dockerEventMonitor.Stop()
-	}
-
-	if n.healthMonitor != nil {
-		n.healthMonitor.Stop()
-	}
-
-	if n.dev != nil {
-		n.dev.Close()
-	}
-
-	if n.pm != nil {
-		n.pm.Stop()
-	}
-
-	n.client.SendMessage("newt/disconnecting", map[string]any{})
-
-	if n.client != nil {
-		n.client.Close()
-	}
-	logger.Info("Exiting...")
-}
-
-// Close performs an emergency shutdown: closes the tunnel, clients, health
-// monitor, and websocket connection. Typically used before re-exec.
-func (n *Newt) Close() {
-	n.closeWgTunnel()
-	n.closeClients()
-	if n.healthMonitor != nil {
-		n.healthMonitor.Stop()
-	}
-	if n.client != nil {
-		n.client.Close()
-	}
-}
-
-func generateChainId() string {
-	b := make([]byte, 8)
-	_, _ = rand.Read(b)
-	return hex.EncodeToString(b)
-}

newt/newt_test.go

@@ -1,371 +0,0 @@
-package newt
-
-import (
-	"context"
-	"net"
-	"os"
-	"path/filepath"
-	"sync/atomic"
-	"testing"
-	"time"
-)
-
-func TestWatchBlueprintFile_WriteTriggersSend(t *testing.T) {
-	f, err := os.CreateTemp(t.TempDir(), "blueprint-*.yaml")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	var calls atomic.Int32
-	go watchBlueprintFile(ctx, f.Name(), func() error {
-		calls.Add(1)
-		return nil
-	})
-
-	time.Sleep(50 * time.Millisecond)
-
-	if err := os.WriteFile(f.Name(), []byte("content"), 0644); err != nil {
-		t.Fatal(err)
-	}
-
-	time.Sleep(700 * time.Millisecond)
-
-	if calls.Load() != 1 {
-		t.Errorf("expected 1 send call, got %d", calls.Load())
-	}
-}
-
-func TestWatchBlueprintFile_DebounceCoalescesEvents(t *testing.T) {
-	f, err := os.CreateTemp(t.TempDir(), "blueprint-*.yaml")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	var calls atomic.Int32
-	go watchBlueprintFile(ctx, f.Name(), func() error {
-		calls.Add(1)
-		return nil
-	})
-
-	time.Sleep(50 * time.Millisecond)
-
-	for i := 0; i < 5; i++ {
-		if err := os.WriteFile(f.Name(), []byte("change"), 0644); err != nil {
-			t.Fatal(err)
-		}
-		time.Sleep(50 * time.Millisecond)
-	}
-
-	time.Sleep(700 * time.Millisecond)
-
-	if calls.Load() != 1 {
-		t.Errorf("expected 1 send call after debounce, got %d", calls.Load())
-	}
-}
-
-func TestWatchBlueprintFile_ContextCancellationStops(t *testing.T) {
-	f, err := os.CreateTemp(t.TempDir(), "blueprint-*.yaml")
-	if err != nil {
-		t.Fatal(err)
-	}
-	f.Close()
-
-	ctx, cancel := context.WithCancel(context.Background())
-
-	done := make(chan struct{})
-	go func() {
-		watchBlueprintFile(ctx, f.Name(), func() error { return nil })
-		close(done)
-	}()
-
-	time.Sleep(50 * time.Millisecond)
-	cancel()
-
-	select {
-	case <-done:
-	case <-time.After(2 * time.Second):
-		t.Error("watchBlueprintFile did not exit after context cancellation")
-	}
-}
-
-func TestWatchBlueprintFile_AtomicWriteTriggersSend(t *testing.T) {
-	dir := t.TempDir()
-	target := filepath.Join(dir, "blueprint.yaml")
-	if err := os.WriteFile(target, []byte("initial"), 0644); err != nil {
-		t.Fatal(err)
-	}
-
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	var calls atomic.Int32
-	go watchBlueprintFile(ctx, target, func() error {
-		calls.Add(1)
-		return nil
-	})
-
-	time.Sleep(50 * time.Millisecond)
-
-	tmp := filepath.Join(dir, "blueprint.yaml.tmp")
-	if err := os.WriteFile(tmp, []byte("updated"), 0644); err != nil {
-		t.Fatal(err)
-	}
-	if err := os.Rename(tmp, target); err != nil {
-		t.Fatal(err)
-	}
-
-	time.Sleep(700 * time.Millisecond)
-
-	if calls.Load() < 1 {
-		t.Errorf("expected at least 1 send call after atomic write, got %d", calls.Load())
-	}
-}
-
-func TestWatchBlueprintFile_MissingFileReturnsGracefully(t *testing.T) {
-	ctx, cancel := context.WithCancel(context.Background())
-	defer cancel()
-
-	done := make(chan struct{})
-	go func() {
-		watchBlueprintFile(ctx, "/nonexistent/path/blueprint.yaml", func() error { return nil })
-		close(done)
-	}()
-
-	select {
-	case <-done:
-	case <-time.After(2 * time.Second):
-		t.Error("watchBlueprintFile did not return for missing file")
-	}
-}
-
-func TestParseTargetString(t *testing.T) {
-	tests := []struct {
-		name           string
-		input          string
-		wantListenPort int
-		wantTargetAddr string
-		wantErr        bool
-	}{
-		{
-			name:           "valid IPv4 basic",
-			input:          "3001:192.168.1.1:80",
-			wantListenPort: 3001,
-			wantTargetAddr: "192.168.1.1:80",
-			wantErr:        false,
-		},
-		{
-			name:           "valid IPv4 localhost",
-			input:          "8080:127.0.0.1:3000",
-			wantListenPort: 8080,
-			wantTargetAddr: "127.0.0.1:3000",
-			wantErr:        false,
-		},
-		{
-			name:           "valid IPv4 same ports",
-			input:          "443:10.0.0.1:443",
-			wantListenPort: 443,
-			wantTargetAddr: "10.0.0.1:443",
-			wantErr:        false,
-		},
-		{
-			name:           "valid IPv6 loopback",
-			input:          "3001:[::1]:8080",
-			wantListenPort: 3001,
-			wantTargetAddr: "[::1]:8080",
-			wantErr:        false,
-		},
-		{
-			name:           "valid IPv6 full address",
-			input:          "80:[fd70:1452:b736:4dd5:caca:7db9:c588:f5b3]:8080",
-			wantListenPort: 80,
-			wantTargetAddr: "[fd70:1452:b736:4dd5:caca:7db9:c588:f5b3]:8080",
-			wantErr:        false,
-		},
-		{
-			name:           "valid IPv6 link-local",
-			input:          "443:[fe80::1]:443",
-			wantListenPort: 443,
-			wantTargetAddr: "[fe80::1]:443",
-			wantErr:        false,
-		},
-		{
-			name:           "valid IPv6 all zeros compressed",
-			input:          "8000:[::]:9000",
-			wantListenPort: 8000,
-			wantTargetAddr: "[::]:9000",
-			wantErr:        false,
-		},
-		{
-			name:           "valid IPv6 mixed notation",
-			input:          "5000:[::ffff:192.168.1.1]:6000",
-			wantListenPort: 5000,
-			wantTargetAddr: "[::ffff:192.168.1.1]:6000",
-			wantErr:        false,
-		},
-		{
-			name:           "valid hostname",
-			input:          "8080:example.com:80",
-			wantListenPort: 8080,
-			wantTargetAddr: "example.com:80",
-			wantErr:        false,
-		},
-		{
-			name:           "valid hostname with subdomain",
-			input:          "443:api.example.com:8443",
-			wantListenPort: 443,
-			wantTargetAddr: "api.example.com:8443",
-			wantErr:        false,
-		},
-		{
-			name:           "valid localhost hostname",
-			input:          "3000:localhost:3000",
-			wantListenPort: 3000,
-			wantTargetAddr: "localhost:3000",
-			wantErr:        false,
-		},
-		{
-			name:    "invalid - no colons",
-			input:   "invalid",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - empty string",
-			input:   "",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - non-numeric listen port",
-			input:   "abc:192.168.1.1:80",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - missing target port",
-			input:   "3001:192.168.1.1",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - IPv6 without brackets",
-			input:   "3001:fd70:1452:b736:4dd5:caca:7db9:c588:f5b3:80",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - only listen port",
-			input:   "3001:",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - missing host",
-			input:   "3001::80",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - IPv6 unclosed bracket",
-			input:   "3001:[::1:80",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - listen port zero",
-			input:   "0:192.168.1.1:80",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - listen port negative",
-			input:   "-1:192.168.1.1:80",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - listen port out of range",
-			input:   "70000:192.168.1.1:80",
-			wantErr: true,
-		},
-		{
-			name:    "invalid - empty target port",
-			input:   "3001:192.168.1.1:",
-			wantErr: true,
-		},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			listenPort, targetAddr, err := parseTargetString(tt.input)
-
-			if (err != nil) != tt.wantErr {
-				t.Errorf("parseTargetString(%q) error = %v, wantErr %v", tt.input, err, tt.wantErr)
-				return
-			}
-
-			if tt.wantErr {
-				return
-			}
-
-			if listenPort != tt.wantListenPort {
-				t.Errorf("parseTargetString(%q) listenPort = %d, want %d", tt.input, listenPort, tt.wantListenPort)
-			}
-
-			if targetAddr != tt.wantTargetAddr {
-				t.Errorf("parseTargetString(%q) targetAddr = %q, want %q", tt.input, targetAddr, tt.wantTargetAddr)
-			}
-		})
-	}
-}
-
-func TestParseTargetStringNetDialCompatibility(t *testing.T) {
-	tests := []struct {
-		name  string
-		input string
-	}{
-		{"IPv4", "8080:127.0.0.1:80"},
-		{"IPv6 loopback", "8080:[::1]:80"},
-		{"IPv6 full", "8080:[2001:db8::1]:80"},
-	}
-
-	for _, tt := range tests {
-		t.Run(tt.name, func(t *testing.T) {
-			_, targetAddr, err := parseTargetString(tt.input)
-			if err != nil {
-				t.Fatalf("parseTargetString(%q) unexpected error: %v", tt.input, err)
-			}
-
-			_, _, err = net.SplitHostPort(targetAddr)
-			if err != nil {
-				t.Errorf("parseTargetString(%q) produced invalid net.Dial format %q: %v", tt.input, targetAddr, err)
-			}
-		})
-	}
-}
-
-// TestShouldFireRecovery is the regression guard for the broken trigger gate
-// that prevented data-plane recovery from ever firing under default settings
-// (fosrl/newt#284, #310, pangolin#1004).
-func TestShouldFireRecovery(t *testing.T) {
-	const threshold = 4
-	cases := []struct {
-		name           string
-		failures       int
-		connectionLost bool
-		want           bool
-	}{
-		{"below threshold, fresh", 3, false, false},
-		{"below threshold, already lost", 3, true, false},
-		{"at threshold, fresh — recovery must fire", threshold, false, true},
-		{"at threshold, already lost — gate prevents re-fire", threshold, true, false},
-		{"far above threshold, fresh", 100, false, true},
-		{"far above threshold, already lost", 100, true, false},
-	}
-	for _, c := range cases {
-		t.Run(c.name, func(t *testing.T) {
-			if got := shouldFireRecovery(c.failures, threshold, c.connectionLost); got != c.want {
-				t.Errorf("shouldFireRecovery(failures=%d, threshold=%d, lost=%v) = %v, want %v",
-					c.failures, threshold, c.connectionLost, got, c.want)
-			}
-		})
-	}
-}

newt/ping.go

@@ -1,339 +0,0 @@
-package newt
-
-import (
-	"bytes"
-	"context"
-	"fmt"
-	"math/rand"
-	"os"
-	"os/exec"
-	"runtime"
-	"time"
-
-	"github.com/fosrl/newt/internal/telemetry"
-	"github.com/fosrl/newt/logger"
-	"golang.org/x/net/icmp"
-	"golang.org/x/net/ipv4"
-	"golang.zx2c4.com/wireguard/tun/netstack"
-)
-
-type pingFunc func(dst string, timeout time.Duration) (time.Duration, error)
-
-const msgHealthFileWriteFailed = "Failed to write health file: %v"
-
-func pingNative(dst string, timeout time.Duration) (time.Duration, error) {
-	timeoutSecs := int(timeout.Seconds())
-	if timeoutSecs < 1 {
-		timeoutSecs = 1
-	}
-	ctx, cancel := context.WithTimeout(context.Background(), timeout+time.Second)
-	defer cancel()
-
-	var cmd *exec.Cmd
-	switch runtime.GOOS {
-	case "windows":
-		cmd = exec.CommandContext(ctx, "ping", "-n", "1", "-w", fmt.Sprintf("%d", int(timeout.Milliseconds())), dst)
-	case "darwin":
-		cmd = exec.CommandContext(ctx, "ping", "-c", "1", "-W", fmt.Sprintf("%d", int(timeout.Milliseconds())), dst)
-	default:
-		cmd = exec.CommandContext(ctx, "ping", "-c", "1", "-W", fmt.Sprintf("%d", timeoutSecs), dst)
-	}
-
-	start := time.Now()
-	if err := cmd.Run(); err != nil {
-		return 0, fmt.Errorf("native ping to %s failed: %w", dst, err)
-	}
-	return time.Since(start), nil
-}
-
-func ping(tnet *netstack.Net, dst string, timeout time.Duration) (time.Duration, error) {
-	socket, err := tnet.Dial("ping4", dst)
-	if err != nil {
-		return 0, fmt.Errorf("failed to create ICMP socket: %w", err)
-	}
-	defer socket.Close()
-
-	if tcpConn, ok := socket.(interface{ SetReadBuffer(int) error }); ok {
-		tcpConn.SetReadBuffer(64 * 1024)
-	}
-	if tcpConn, ok := socket.(interface{ SetWriteBuffer(int) error }); ok {
-		tcpConn.SetWriteBuffer(64 * 1024)
-	}
-
-	requestPing := icmp.Echo{
-		Seq:  rand.Intn(1 << 16),
-		Data: []byte("newtping"),
-	}
-
-	icmpBytes, err := (&icmp.Message{Type: ipv4.ICMPTypeEcho, Code: 0, Body: &requestPing}).Marshal(nil)
-	if err != nil {
-		return 0, fmt.Errorf("failed to marshal ICMP message: %w", err)
-	}
-
-	if err := socket.SetReadDeadline(time.Now().Add(timeout)); err != nil {
-		return 0, fmt.Errorf("failed to set read deadline: %w", err)
-	}
-
-	start := time.Now()
-	_, err = socket.Write(icmpBytes)
-	if err != nil {
-		return 0, fmt.Errorf("failed to write ICMP packet: %w", err)
-	}
-
-	readBuffer := make([]byte, 1500)
-	n, err := socket.Read(readBuffer)
-	if err != nil {
-		return 0, fmt.Errorf("failed to read ICMP packet: %w", err)
-	}
-
-	replyPacket, err := icmp.ParseMessage(1, readBuffer[:n])
-	if err != nil {
-		return 0, fmt.Errorf("failed to parse ICMP packet: %w", err)
-	}
-
-	replyPing, ok := replyPacket.Body.(*icmp.Echo)
-	if !ok {
-		return 0, fmt.Errorf("invalid reply type: got %T, want *icmp.Echo", replyPacket.Body)
-	}
-
-	if !bytes.Equal(replyPing.Data, requestPing.Data) || replyPing.Seq != requestPing.Seq {
-		return 0, fmt.Errorf("invalid ping reply: got seq=%d data=%q, want seq=%d data=%q",
-			replyPing.Seq, replyPing.Data, requestPing.Seq, requestPing.Data)
-	}
-
-	return time.Since(start), nil
-}
-
-func reliablePing(fn pingFunc, dst string, baseTimeout time.Duration, maxAttempts int) (time.Duration, error) {
-	var lastErr error
-	var totalLatency time.Duration
-	successCount := 0
-
-	for attempt := 1; attempt <= maxAttempts; attempt++ {
-		timeout := baseTimeout + time.Duration(attempt-1)*500*time.Millisecond
-		jitter := time.Duration(rand.Intn(100)) * time.Millisecond
-		timeout += jitter
-
-		latency, err := fn(dst, timeout)
-		if err != nil {
-			lastErr = err
-			logger.Debug("Ping attempt %d/%d failed: %v", attempt, maxAttempts, err)
-
-			if attempt < maxAttempts {
-				backoff := time.Duration(attempt) * 50 * time.Millisecond
-				time.Sleep(backoff)
-			}
-			continue
-		}
-
-		totalLatency += latency
-		successCount++
-		return totalLatency / time.Duration(successCount), nil
-	}
-
-	return 0, fmt.Errorf("all %d ping attempts failed, last error: %v", maxAttempts, lastErr)
-}
-
-// shouldFireRecovery decides whether the data-plane recovery flow should run on
-// this tick. See startPingCheck for the rationale behind separating recovery
-// from the backoff ramp.
-func shouldFireRecovery(consecutiveFailures, failureThreshold int, connectionLost bool) bool {
-	return consecutiveFailures >= failureThreshold && !connectionLost
-}
-
-func (n *Newt) pingWithRetry(fn pingFunc, dst string, timeout time.Duration) (stopChan chan struct{}, err error) {
-	if n.config.HealthFile != "" {
-		err = os.Remove(n.config.HealthFile)
-		if err != nil {
-			logger.Error("Failed to remove health file: %v", err)
-		}
-	}
-
-	const (
-		initialRetryDelay = 2 * time.Second
-		maxRetryDelay     = 60 * time.Second
-	)
-
-	stopChan = make(chan struct{})
-	attempt := 1
-	retryDelay := initialRetryDelay
-
-	logger.Debug("Ping attempt %d", attempt)
-	if latency, err := fn(dst, timeout); err == nil {
-		logger.Debug("Ping latency: %v", latency)
-		logger.Info("Tunnel connection to server established successfully!")
-		if n.config.HealthFile != "" {
-			if err := os.WriteFile(n.config.HealthFile, []byte("ok"), 0644); err != nil {
-				logger.Warn(msgHealthFileWriteFailed, err)
-			}
-		}
-		return stopChan, nil
-	} else {
-		logger.Warn("Ping attempt %d failed: %v", attempt, err)
-	}
-
-	go func() {
-		attempt = 2
-
-		for {
-			select {
-			case <-stopChan:
-				return
-			default:
-				logger.Debug("Ping attempt %d", attempt)
-
-				if latency, err := fn(dst, timeout); err != nil {
-					logger.Warn("Ping attempt %d failed: %v", attempt, err)
-
-					if attempt%5 == 0 && retryDelay < maxRetryDelay {
-						retryDelay = time.Duration(float64(retryDelay) * 1.5)
-						if retryDelay > maxRetryDelay {
-							retryDelay = maxRetryDelay
-						}
-						logger.Info("Increasing ping retry delay to %v", retryDelay)
-					}
-
-					time.Sleep(retryDelay)
-					attempt++
-				} else {
-					logger.Debug("Ping succeeded after %d attempts", attempt)
-					logger.Debug("Ping latency: %v", latency)
-					logger.Info("Tunnel connection to server established successfully!")
-					if n.config.HealthFile != "" {
-						if err := os.WriteFile(n.config.HealthFile, []byte("ok"), 0644); err != nil {
-							logger.Warn(msgHealthFileWriteFailed, err)
-						}
-					}
-					return
-				}
-			case <-n.pingStopChan:
-				return
-			}
-		}
-	}()
-
-	return stopChan, fmt.Errorf("initial ping attempts failed, continuing in background")
-}
-
-func (n *Newt) startPingCheck(fn pingFunc, serverIP, tunnelID string) chan struct{} {
-	maxInterval := 6 * time.Second
-	currentInterval := n.config.PingInterval
-	consecutiveFailures := 0
-	connectionLost := false
-
-	recentLatencies := make([]time.Duration, 0, 10)
-
-	pingStopChan := make(chan struct{})
-
-	go func() {
-		ticker := time.NewTicker(currentInterval)
-		defer ticker.Stop()
-		for {
-			select {
-			case <-ticker.C:
-				adaptiveTimeout := n.config.PingTimeout
-				if len(recentLatencies) > 0 {
-					var sum time.Duration
-					for _, lat := range recentLatencies {
-						sum += lat
-					}
-					avgLatency := sum / time.Duration(len(recentLatencies))
-					adaptiveTimeout = avgLatency * 3
-					if adaptiveTimeout < n.config.PingTimeout {
-						adaptiveTimeout = n.config.PingTimeout
-					}
-					if adaptiveTimeout > 15*time.Second {
-						adaptiveTimeout = 15 * time.Second
-					}
-				}
-
-				maxAttempts := 2
-				if consecutiveFailures > 4 {
-					maxAttempts = 4
-				}
-
-				latency, err := reliablePing(fn, serverIP, adaptiveTimeout, maxAttempts)
-				if err != nil {
-					consecutiveFailures++
-
-					recentLatencies = append(recentLatencies, adaptiveTimeout)
-					if len(recentLatencies) > 10 {
-						recentLatencies = recentLatencies[1:]
-					}
-
-					if consecutiveFailures < 2 {
-						logger.Debug("Periodic ping failed (%d consecutive failures): %v", consecutiveFailures, err)
-					} else {
-						logger.Warn("Periodic ping failed (%d consecutive failures): %v", consecutiveFailures, err)
-					}
-
-					failureThreshold := 4
-					if shouldFireRecovery(consecutiveFailures, failureThreshold, connectionLost) {
-						connectionLost = true
-						logger.Warn("Connection to server lost after %d failures. Continuous reconnection attempts will be made.", consecutiveFailures)
-						if tunnelID != "" {
-							telemetry.IncReconnect(context.Background(), tunnelID, "client", telemetry.ReasonTimeout)
-						}
-						pingChainId := generateChainId()
-						n.pendingPingChainId = pingChainId
-						n.stopFunc = n.client.SendMessageInterval("newt/ping/request", map[string]interface{}{
-							"chainId": pingChainId,
-						}, 3*time.Second)
-						bcChainId := generateChainId()
-						n.pendingRegisterChainId = bcChainId
-						if err := n.client.SendMessage("newt/wg/register", map[string]interface{}{
-							"publicKey":           n.publicKey.String(),
-							"backwardsCompatible": true,
-							"chainId":             bcChainId,
-						}); err != nil {
-							logger.Error("Failed to send registration message: %v", err)
-						}
-						if n.config.HealthFile != "" {
-							if err := os.Remove(n.config.HealthFile); err != nil {
-								logger.Error("Failed to remove health file: %v", err)
-							}
-						}
-					}
-					if consecutiveFailures >= failureThreshold && currentInterval < maxInterval {
-						currentInterval = time.Duration(float64(currentInterval) * 1.3)
-						if currentInterval > maxInterval {
-							currentInterval = maxInterval
-						}
-					}
-				} else {
-					recentLatencies = append(recentLatencies, latency)
-					if tunnelID != "" {
-						telemetry.ObserveTunnelLatency(context.Background(), tunnelID, "wireguard", latency.Seconds())
-					}
-					if len(recentLatencies) > 10 {
-						recentLatencies = recentLatencies[1:]
-					}
-
-					if connectionLost {
-						connectionLost = false
-						logger.Info("Connection to server restored after %d failures!", consecutiveFailures)
-						if n.config.HealthFile != "" {
-							if err := os.WriteFile(n.config.HealthFile, []byte("ok"), 0644); err != nil {
-								logger.Warn("Failed to write health file: %v", err)
-							}
-						}
-					}
-					if currentInterval > n.config.PingInterval {
-						currentInterval = time.Duration(float64(currentInterval) * 0.9)
-						if currentInterval < n.config.PingInterval {
-							currentInterval = n.config.PingInterval
-						}
-						ticker.Reset(currentInterval)
-						logger.Debug("Decreased ping check interval to %v after successful ping", currentInterval)
-					}
-					consecutiveFailures = 0
-				}
-			case <-pingStopChan:
-				logger.Info("Stopping ping check")
-				return
-			}
-		}
-	}()
-
-	return pingStopChan
-}

newt/targets.go

@@ -1,150 +0,0 @@
-package newt
-
-import (
-	"encoding/json"
-	"fmt"
-	"net"
-	"os/exec"
-	"strings"
-
-	"github.com/fosrl/newt/logger"
-	"github.com/fosrl/newt/proxy"
-)
-
-func parseTargetData(data interface{}) (TargetData, error) {
-	var targetData TargetData
-	jsonData, err := json.Marshal(data)
-	if err != nil {
-		logger.Info("Error marshaling data: %v", err)
-		return targetData, err
-	}
-
-	if err := json.Unmarshal(jsonData, &targetData); err != nil {
-		logger.Info("Error unmarshaling target data: %v", err)
-		return targetData, err
-	}
-	return targetData, nil
-}
-
-// parseTargetString parses "listenPort:host:targetPort", handling IPv6 brackets.
-func parseTargetString(target string) (int, string, error) {
-	firstColon := strings.Index(target, ":")
-	if firstColon == -1 {
-		return 0, "", fmt.Errorf("invalid target format, no colon found: %s", target)
-	}
-
-	listenPortStr := target[:firstColon]
-	var listenPort int
-	_, err := fmt.Sscanf(listenPortStr, "%d", &listenPort)
-	if err != nil {
-		return 0, "", fmt.Errorf("invalid listen port: %s", listenPortStr)
-	}
-	if listenPort <= 0 || listenPort > 65535 {
-		return 0, "", fmt.Errorf("listen port out of range: %d", listenPort)
-	}
-
-	remainder := target[firstColon+1:]
-	host, targetPort, err := net.SplitHostPort(remainder)
-	if err != nil {
-		return 0, "", fmt.Errorf("invalid host:port format '%s': %w", remainder, err)
-	}
-
-	if host == "" {
-		return 0, "", fmt.Errorf("empty host in target: %s", target)
-	}
-	if targetPort == "" {
-		return 0, "", fmt.Errorf("empty target port in target: %s", target)
-	}
-
-	return listenPort, net.JoinHostPort(host, targetPort), nil
-}
-
-func (n *Newt) updateTargets(pm *proxy.ProxyManager, action string, tunnelIP string, proto string, targetData TargetData) error {
-	for _, t := range targetData.Targets {
-		port, target, err := parseTargetString(t)
-		if err != nil {
-			logger.Info("Invalid target format: %s (%v)", t, err)
-			continue
-		}
-
-		switch action {
-		case "add":
-			processedTarget := target
-			if n.config.UpdownScript != "" {
-				newTarget, err := n.executeUpdownScript(action, proto, target)
-				if err != nil {
-					logger.Warn("Updown script error: %v", err)
-				} else if newTarget != "" {
-					processedTarget = newTarget
-				}
-			}
-
-			err := pm.RemoveTarget(proto, tunnelIP, port)
-			if err != nil {
-				if !strings.Contains(err.Error(), "target not found") {
-					logger.Error("Failed to remove existing target: %v", err)
-				}
-			}
-
-			pm.AddTarget(proto, tunnelIP, port, processedTarget)
-
-		case "remove":
-			logger.Info("Removing target with port %d", port)
-
-			if n.config.UpdownScript != "" {
-				_, err := n.executeUpdownScript(action, proto, target)
-				if err != nil {
-					logger.Warn("Updown script error: %v", err)
-				}
-			}
-
-			err = pm.RemoveTarget(proto, tunnelIP, port)
-			if err != nil {
-				logger.Error("Failed to remove target: %v", err)
-				return err
-			}
-		default:
-			logger.Info("Unknown action: %s", action)
-		}
-	}
-
-	return nil
-}
-
-func (n *Newt) executeUpdownScript(action, proto, target string) (string, error) {
-	if n.config.UpdownScript == "" {
-		return target, nil
-	}
-
-	parts := strings.Fields(n.config.UpdownScript)
-	if len(parts) == 0 {
-		return target, fmt.Errorf("invalid updown script command")
-	}
-
-	var cmd *exec.Cmd
-	if len(parts) == 1 {
-		logger.Info("Executing updown script: %s %s %s %s", n.config.UpdownScript, action, proto, target)
-		cmd = exec.Command(parts[0], action, proto, target)
-	} else {
-		args := append(parts[1:], action, proto, target)
-		logger.Info("Executing updown script: %s %s %s %s %s", parts[0], strings.Join(parts[1:], " "), action, proto, target)
-		cmd = exec.Command(parts[0], args...)
-	}
-
-	output, err := cmd.Output()
-	if err != nil {
-		if exitErr, ok := err.(*exec.ExitError); ok {
-			return "", fmt.Errorf("updown script execution failed (exit code %d): %s",
-				exitErr.ExitCode(), string(exitErr.Stderr))
-		}
-		return "", fmt.Errorf("updown script execution failed: %v", err)
-	}
-
-	newTarget := strings.TrimSpace(string(output))
-	if newTarget != "" {
-		logger.Info("Updown script returned new target: %s", newTarget)
-		return newTarget, nil
-	}
-
-	return target, nil
-}

newt/tunnel.go

@@ -1,109 +0,0 @@
-package newt
-
-import (
-	"fmt"
-
-	"github.com/fosrl/newt/logger"
-	"github.com/fosrl/newt/network"
-	"github.com/fosrl/newt/util"
-)
-
-// updateRemoteExitNodeSubnets replaces the set of active remote exit node
-// subnets with the given list, updating WireGuard AllowedIPs and native
-// routes to match.
-func (n *Newt) updateRemoteExitNodeSubnets(subnets []string) {
-	if n.config.UseNativeMainInterface && len(n.activeRemoteSubnets) > 0 {
-		toRemove := make([]string, 0)
-		newSet := make(map[string]bool, len(subnets))
-		for _, s := range subnets {
-			newSet[s] = true
-		}
-		for _, s := range n.activeRemoteSubnets {
-			if !newSet[s] {
-				toRemove = append(toRemove, s)
-			}
-		}
-		if len(toRemove) > 0 {
-			if err := network.RemoveRoutes(toRemove); err != nil {
-				logger.Warn("Failed to remove old subnet routes: %v", err)
-			}
-		}
-	}
-
-	if n.dev != nil && n.wgData.PublicKey != "" {
-		lines := fmt.Sprintf("public_key=%s\nreplace_allowed_ips=true\nallowed_ip=%s/32",
-			util.FixKey(n.wgData.PublicKey), n.wgData.ServerIP)
-		for _, s := range subnets {
-			lines += "\nallowed_ip=" + s
-		}
-		if err := n.dev.IpcSet(lines); err != nil {
-			logger.Warn("Failed to update WireGuard AllowedIPs: %v", err)
-		}
-	}
-
-	if n.config.UseNativeMainInterface && len(subnets) > 0 {
-		existing := make(map[string]bool, len(n.activeRemoteSubnets))
-		for _, s := range n.activeRemoteSubnets {
-			existing[s] = true
-		}
-		toAdd := make([]string, 0)
-		for _, s := range subnets {
-			if !existing[s] {
-				toAdd = append(toAdd, s)
-			}
-		}
-		if len(toAdd) > 0 {
-			if err := network.AddRoutes(toAdd, n.config.NativeMainInterfaceName); err != nil {
-				logger.Warn("Failed to add new subnet routes: %v", err)
-			}
-		}
-	}
-
-	n.activeRemoteSubnets = append([]string{}, subnets...)
-	logger.Info("Updated remote exit node subnets: %d total", len(subnets))
-}
-
-func (n *Newt) closeWgTunnel() {
-	if n.pingStopChan != nil {
-		close(n.pingStopChan)
-		n.pingStopChan = nil
-	}
-
-	if n.browserGatewayStop != nil {
-		n.browserGatewayStop()
-		n.browserGatewayStop = nil
-		n.browserGateway = nil
-	}
-
-	if n.pm != nil {
-		n.pm.Stop()
-		n.currentPM.Store(nil)
-		n.pm = nil
-	}
-
-	if n.config.UseNativeMainInterface {
-		toRemove := make([]string, 0, len(n.activeRemoteSubnets)+1)
-		if n.wgData.ServerIP != "" {
-			toRemove = append(toRemove, n.wgData.ServerIP+"/32")
-		}
-		toRemove = append(toRemove, n.activeRemoteSubnets...)
-		if len(toRemove) > 0 {
-			if err := network.RemoveRoutes(toRemove); err != nil {
-				logger.Warn("Failed to remove native main tunnel routes: %v", err)
-			}
-		}
-		n.activeRemoteSubnets = nil
-	}
-
-	if n.dev != nil {
-		n.dev.Close()
-		n.dev = nil
-	}
-
-	if n.tnet != nil {
-		n.tnet = nil
-	}
-	if n.tun != nil {
-		n.tun = nil
-	}
-}

newt/types.go

@@ -1,74 +0,0 @@
-package newt
-
-import (
-	wgclients "github.com/fosrl/newt/clients"
-	"github.com/fosrl/newt/healthcheck"
-)
-
-type BrowserGatewayTarget struct {
-	ID              int    `json:"id"`
-	Type            string `json:"type"`
-	Destination     string `json:"destination"`
-	DestinationPort int    `json:"destinationPort"`
-	AuthToken       string `json:"authToken"`
-}
-
-type WgData struct {
-	Endpoint              string                 `json:"endpoint"`
-	RelayPort             uint16                 `json:"relayPort"`
-	PublicKey             string                 `json:"publicKey"`
-	ServerIP              string                 `json:"serverIP"`
-	TunnelIP              string                 `json:"tunnelIP"`
-	Targets               TargetsByType          `json:"targets"`
-	HealthCheckTargets    []healthcheck.Config   `json:"healthCheckTargets"`
-	BrowserGatewayTargets []BrowserGatewayTarget `json:"browserGatewayTargets"`
-	RemoteExitNodeSubnets []string               `json:"remoteExitNodeSubnets"`
-	ChainId               string                 `json:"chainId"`
-}
-
-type TargetsByType struct {
-	UDP []string `json:"udp"`
-	TCP []string `json:"tcp"`
-}
-
-type TargetData struct {
-	Targets []string `json:"targets"`
-}
-
-type ExitNodeData struct {
-	ExitNodes []ExitNode `json:"exitNodes"`
-	ChainId   string     `json:"chainId"`
-}
-
-type ExitNode struct {
-	ID                     int     `json:"exitNodeId"`
-	Name                   string  `json:"exitNodeName"`
-	Endpoint               string  `json:"endpoint"`
-	Weight                 float64 `json:"weight"`
-	WasPreviouslyConnected bool    `json:"wasPreviouslyConnected"`
-}
-
-type ExitNodePingResult struct {
-	ExitNodeID             int     `json:"exitNodeId"`
-	LatencyMs              int64   `json:"latencyMs"`
-	Weight                 float64 `json:"weight"`
-	Error                  string  `json:"error,omitempty"`
-	Name                   string  `json:"exitNodeName"`
-	Endpoint               string  `json:"endpoint"`
-	WasPreviouslyConnected bool    `json:"wasPreviouslyConnected"`
-}
-
-type BlueprintResult struct {
-	Success bool   `json:"success"`
-	Message string `json:"message,omitempty"`
-}
-
-// Define the sync data structure
-type SyncData struct {
-	Targets               TargetsByType          `json:"proxyTargets"`
-	HealthCheckTargets    []healthcheck.Config   `json:"healthCheckTargets"`
-	RemoteExitNodeSubnets []string               `json:"remoteExitNodeSubnets"`
-	Peers                 []wgclients.Peer       `json:"peers"`
-	ClientTargets         []wgclients.Target     `json:"clientTargets"`
-	BrowserGatewayTargets []BrowserGatewayTarget `json:"browserGatewayTargets"`
-}

packages/advantech/.gitignore

@@ -1,3 +0,0 @@
-.build
-*.tgz
-bin

packages/advantech/Makefile

@@ -1,54 +0,0 @@
-MODNAME     := newt
-VERSION     := 1.12.5
-RELEASE_URL := https://github.com/fosrl/newt/releases/download/$(VERSION)
-PLATFORM    ?= v4
-
-# Map Advantech platform to newt release binary name
-arch_v4  := arm64
-arch_v4i := arm64
-arch_v3  := arm32
-arch_v2  := arm32
-arch_v2i := arm32
-
-NEWT_ARCH := $(arch_$(PLATFORM))
-ifeq ($(NEWT_ARCH),)
-$(error Unknown platform '$(PLATFORM)'. Supported: v4, v4i, v3, v2, v2i)
-endif
-
-BINARY   := newt_linux_$(NEWT_ARCH)
-BINDIR   := bin
-OUTFILE  := $(MODNAME).$(PLATFORM).tgz
-STAGEDIR := .build/$(MODNAME)
-
-.PHONY: all clean
-
-all: $(OUTFILE)
-
-# Cache the downloaded binary in bin/ (re-download only if missing)
-$(BINDIR)/$(BINARY):
-	mkdir -p $(BINDIR)
-	@echo "Downloading $(BINARY) $(VERSION) for platform $(PLATFORM)..."
-	wget -q -O $@ "$(RELEASE_URL)/$(BINARY)" 2>/dev/null || \
-		curl -fsSL -o $@ "$(RELEASE_URL)/$(BINARY)"
-	chmod +x $@
-	@echo "Binary ready: $@"
-
-# Build the package
-$(OUTFILE): $(BINDIR)/$(BINARY) $(shell find merge -type f 2>/dev/null)
-	@rm -rf $(STAGEDIR)
-	@mkdir -p $(STAGEDIR)/bin
-	@cp $(BINDIR)/$(BINARY) $(STAGEDIR)/bin/newt
-	@chmod +x $(STAGEDIR)/bin/newt
-	@cp -r merge/. $(STAGEDIR)/
-	@chmod +x \
-		$(STAGEDIR)/etc/init \
-		$(STAGEDIR)/etc/install \
-		$(STAGEDIR)/etc/uninstall \
-		$(STAGEDIR)/www/index.cgi
-	tar -c --owner=0 --group=0 --mtime="2001-01-01 UTC" \
-		-C .build $(MODNAME) | gzip -n > $@
-	@echo "Created: $@"
-
-clean:
-	rm -rf .build $(MODNAME).*.tgz
-	@echo "Cleaned."

packages/advantech/merge/etc/defaults

@@ -1,61 +0,0 @@
-MOD_PANGOLIN_SITE_ENABLED=0
-MOD_PANGOLIN_SITE_ENDPOINT=
-MOD_PANGOLIN_SITE_ID=
-MOD_PANGOLIN_SITE_SECRET=
-
-# Core networking
-MOD_PANGOLIN_SITE_MTU=
-MOD_PANGOLIN_SITE_DNS=
-MOD_PANGOLIN_SITE_INTERFACE=
-MOD_PANGOLIN_SITE_PORT=
-MOD_PANGOLIN_SITE_UPDOWN_SCRIPT=
-MOD_PANGOLIN_SITE_PREFER_ENDPOINT=
-
-# Logging
-MOD_PANGOLIN_SITE_LOG_LEVEL=
-
-# Behavior toggles (true/false)
-MOD_PANGOLIN_SITE_DISABLE_CLIENTS=
-MOD_PANGOLIN_SITE_USE_NATIVE_INTERFACE=
-MOD_PANGOLIN_SITE_ENFORCE_HC_CERT=
-MOD_PANGOLIN_SITE_NO_CLOUD=
-
-# Timers
-MOD_PANGOLIN_SITE_PING_INTERVAL=
-MOD_PANGOLIN_SITE_PING_TIMEOUT=
-MOD_PANGOLIN_SITE_UDP_PROXY_IDLE_TIMEOUT=
-
-# Docker integration
-MOD_PANGOLIN_SITE_DOCKER_SOCKET=
-MOD_PANGOLIN_SITE_DOCKER_ENFORCE_NETWORK_VALIDATION=
-
-# Health / files
-MOD_PANGOLIN_SITE_HEALTH_FILE=
-MOD_PANGOLIN_SITE_BLUEPRINT_FILE=
-MOD_PANGOLIN_SITE_PROVISIONING_BLUEPRINT_FILE=
-MOD_PANGOLIN_SITE_CONFIG_FILE=
-
-# Provisioning
-MOD_PANGOLIN_SITE_PROVISIONING_KEY=
-MOD_PANGOLIN_SITE_NAME=
-
-# Auth daemon
-MOD_PANGOLIN_SITE_AUTH_DAEMON_ENABLED=
-MOD_PANGOLIN_SITE_AD_GENERATE_RANDOM_PASSWORD=
-MOD_PANGOLIN_SITE_AD_KEY=
-MOD_PANGOLIN_SITE_AD_PRINCIPALS_FILE=
-MOD_PANGOLIN_SITE_AD_CA_CERT_PATH=
-
-# Metrics / observability
-MOD_PANGOLIN_SITE_METRICS_PROMETHEUS_ENABLED=
-MOD_PANGOLIN_SITE_METRICS_OTLP_ENABLED=
-MOD_PANGOLIN_SITE_ADMIN_ADDR=
-MOD_PANGOLIN_SITE_REGION=
-MOD_PANGOLIN_SITE_METRICS_ASYNC_BYTES=
-MOD_PANGOLIN_SITE_PPROF_ENABLED=
-
-# mTLS
-MOD_PANGOLIN_SITE_TLS_CLIENT_CERT=
-MOD_PANGOLIN_SITE_TLS_CLIENT_KEY=
-MOD_PANGOLIN_SITE_TLS_CLIENT_CAS=
-MOD_PANGOLIN_SITE_TLS_CLIENT_CERT_PKCS12=

packages/advantech/merge/etc/description

@@ -1,4 +0,0 @@
-Pangolin Site (newt) is a WireGuard-based tunnel client that connects this router to a
-Pangolin server, enabling secure remote access to local resources without opening
-firewall ports. Configure the server endpoint, ID, and secret via the web
-interface to establish the tunnel automatically on startup.

packages/advantech/merge/etc/init

@@ -1,124 +0,0 @@
-#!/bin/sh
-
-MODNAME=newt
-PIDFILE=/tmp/newt.pid
-LOGFILE=/tmp/newt.log
-
-set_setting_raw() {
-    key="$1"
-    value="$2"
-    [ -f "/opt/$MODNAME/etc/settings" ] || cp "/opt/$MODNAME/etc/defaults" "/opt/$MODNAME/etc/settings" 2>/dev/null
-    awk -v k="$key" -v v="$value" '
-        BEGIN { done=0 }
-        index($0, k "=") == 1 { print k "=" v; done=1; next }
-        { print }
-        END { if (!done) print k "=" v }
-    ' "/opt/$MODNAME/etc/settings" > "/tmp/${MODNAME}.settings.tmp" && mv "/tmp/${MODNAME}.settings.tmp" "/opt/$MODNAME/etc/settings"
-}
-
-/usr/bin/logger -t $MODNAME "DEBUG: $0 $@"
-
-case "$1" in
-    start)
-        . /opt/$MODNAME/etc/settings
-        if [ "$MOD_PANGOLIN_SITE_ENABLED" != "1" ]; then
-            echo "$MODNAME is disabled in settings, skipping start"
-            exit 0
-        fi
-        if [ -f "$PIDFILE" ] && kill -0 "$(cat "$PIDFILE" 2>/dev/null)" 2>/dev/null; then
-            echo "$MODNAME is already running (PID: $(cat "$PIDFILE"))"
-            exit 0
-        fi
-
-        # Starting newt implies enable at boot.
-        set_setting_raw "MOD_PANGOLIN_SITE_ENABLED" "1"
-
-        # Map module settings to Newt environment variables.
-        [ -n "$MOD_PANGOLIN_SITE_ENDPOINT" ] && export PANGOLIN_ENDPOINT="$MOD_PANGOLIN_SITE_ENDPOINT"
-        [ -n "$MOD_PANGOLIN_SITE_ID" ] && export NEWT_ID="$MOD_PANGOLIN_SITE_ID"
-        [ -n "$MOD_PANGOLIN_SITE_SECRET" ] && export NEWT_SECRET="$MOD_PANGOLIN_SITE_SECRET"
-        [ -n "$MOD_PANGOLIN_SITE_MTU" ] && export MTU="$MOD_PANGOLIN_SITE_MTU"
-        [ -n "$MOD_PANGOLIN_SITE_DNS" ] && export DNS="$MOD_PANGOLIN_SITE_DNS"
-        [ -n "$MOD_PANGOLIN_SITE_LOG_LEVEL" ] && export LOG_LEVEL="$MOD_PANGOLIN_SITE_LOG_LEVEL"
-        [ -n "$MOD_PANGOLIN_SITE_UPDOWN_SCRIPT" ] && export UPDOWN_SCRIPT="$MOD_PANGOLIN_SITE_UPDOWN_SCRIPT"
-        [ -n "$MOD_PANGOLIN_SITE_INTERFACE" ] && export INTERFACE="$MOD_PANGOLIN_SITE_INTERFACE"
-        [ -n "$MOD_PANGOLIN_SITE_PORT" ] && export PORT="$MOD_PANGOLIN_SITE_PORT"
-        [ -n "$MOD_PANGOLIN_SITE_DISABLE_CLIENTS" ] && export DISABLE_CLIENTS="$MOD_PANGOLIN_SITE_DISABLE_CLIENTS"
-        [ -n "$MOD_PANGOLIN_SITE_USE_NATIVE_INTERFACE" ] && export USE_NATIVE_INTERFACE="$MOD_PANGOLIN_SITE_USE_NATIVE_INTERFACE"
-        [ -n "$MOD_PANGOLIN_SITE_ENFORCE_HC_CERT" ] && export ENFORCE_HC_CERT="$MOD_PANGOLIN_SITE_ENFORCE_HC_CERT"
-        [ -n "$MOD_PANGOLIN_SITE_DOCKER_SOCKET" ] && export DOCKER_SOCKET="$MOD_PANGOLIN_SITE_DOCKER_SOCKET"
-        [ -n "$MOD_PANGOLIN_SITE_PING_INTERVAL" ] && export PING_INTERVAL="$MOD_PANGOLIN_SITE_PING_INTERVAL"
-        [ -n "$MOD_PANGOLIN_SITE_PING_TIMEOUT" ] && export PING_TIMEOUT="$MOD_PANGOLIN_SITE_PING_TIMEOUT"
-        [ -n "$MOD_PANGOLIN_SITE_UDP_PROXY_IDLE_TIMEOUT" ] && export NEWT_UDP_PROXY_IDLE_TIMEOUT="$MOD_PANGOLIN_SITE_UDP_PROXY_IDLE_TIMEOUT"
-        [ -n "$MOD_PANGOLIN_SITE_DOCKER_ENFORCE_NETWORK_VALIDATION" ] && export DOCKER_ENFORCE_NETWORK_VALIDATION="$MOD_PANGOLIN_SITE_DOCKER_ENFORCE_NETWORK_VALIDATION"
-        [ -n "$MOD_PANGOLIN_SITE_HEALTH_FILE" ] && export HEALTH_FILE="$MOD_PANGOLIN_SITE_HEALTH_FILE"
-        [ -n "$MOD_PANGOLIN_SITE_AUTH_DAEMON_ENABLED" ] && export AUTH_DAEMON_ENABLED="$MOD_PANGOLIN_SITE_AUTH_DAEMON_ENABLED"
-        [ -n "$MOD_PANGOLIN_SITE_AD_GENERATE_RANDOM_PASSWORD" ] && export AD_GENERATE_RANDOM_PASSWORD="$MOD_PANGOLIN_SITE_AD_GENERATE_RANDOM_PASSWORD"
-        [ -n "$MOD_PANGOLIN_SITE_AD_KEY" ] && export AD_KEY="$MOD_PANGOLIN_SITE_AD_KEY"
-        [ -n "$MOD_PANGOLIN_SITE_AD_PRINCIPALS_FILE" ] && export AD_PRINCIPALS_FILE="$MOD_PANGOLIN_SITE_AD_PRINCIPALS_FILE"
-        [ -n "$MOD_PANGOLIN_SITE_AD_CA_CERT_PATH" ] && export AD_CA_CERT_PATH="$MOD_PANGOLIN_SITE_AD_CA_CERT_PATH"
-        [ -n "$MOD_PANGOLIN_SITE_METRICS_PROMETHEUS_ENABLED" ] && export NEWT_METRICS_PROMETHEUS_ENABLED="$MOD_PANGOLIN_SITE_METRICS_PROMETHEUS_ENABLED"
-        [ -n "$MOD_PANGOLIN_SITE_METRICS_OTLP_ENABLED" ] && export NEWT_METRICS_OTLP_ENABLED="$MOD_PANGOLIN_SITE_METRICS_OTLP_ENABLED"
-        [ -n "$MOD_PANGOLIN_SITE_ADMIN_ADDR" ] && export NEWT_ADMIN_ADDR="$MOD_PANGOLIN_SITE_ADMIN_ADDR"
-        [ -n "$MOD_PANGOLIN_SITE_REGION" ] && export NEWT_REGION="$MOD_PANGOLIN_SITE_REGION"
-        [ -n "$MOD_PANGOLIN_SITE_METRICS_ASYNC_BYTES" ] && export NEWT_METRICS_ASYNC_BYTES="$MOD_PANGOLIN_SITE_METRICS_ASYNC_BYTES"
-        [ -n "$MOD_PANGOLIN_SITE_PPROF_ENABLED" ] && export NEWT_PPROF_ENABLED="$MOD_PANGOLIN_SITE_PPROF_ENABLED"
-        [ -n "$MOD_PANGOLIN_SITE_TLS_CLIENT_CERT" ] && export TLS_CLIENT_CERT="$MOD_PANGOLIN_SITE_TLS_CLIENT_CERT"
-        [ -n "$MOD_PANGOLIN_SITE_TLS_CLIENT_KEY" ] && export TLS_CLIENT_KEY="$MOD_PANGOLIN_SITE_TLS_CLIENT_KEY"
-        [ -n "$MOD_PANGOLIN_SITE_TLS_CLIENT_CAS" ] && export TLS_CLIENT_CAS="$MOD_PANGOLIN_SITE_TLS_CLIENT_CAS"
-        [ -n "$MOD_PANGOLIN_SITE_TLS_CLIENT_CERT_PKCS12" ] && export TLS_CLIENT_CERT_PKCS12="$MOD_PANGOLIN_SITE_TLS_CLIENT_CERT_PKCS12"
-        [ -n "$MOD_PANGOLIN_SITE_BLUEPRINT_FILE" ] && export BLUEPRINT_FILE="$MOD_PANGOLIN_SITE_BLUEPRINT_FILE"
-        [ -n "$MOD_PANGOLIN_SITE_PROVISIONING_BLUEPRINT_FILE" ] && export PROVISIONING_BLUEPRINT_FILE="$MOD_PANGOLIN_SITE_PROVISIONING_BLUEPRINT_FILE"
-        [ -n "$MOD_PANGOLIN_SITE_NO_CLOUD" ] && export NO_CLOUD="$MOD_PANGOLIN_SITE_NO_CLOUD"
-        [ -n "$MOD_PANGOLIN_SITE_PROVISIONING_KEY" ] && export NEWT_PROVISIONING_KEY="$MOD_PANGOLIN_SITE_PROVISIONING_KEY"
-        [ -n "$MOD_PANGOLIN_SITE_NAME" ] && export NEWT_NAME="$MOD_PANGOLIN_SITE_NAME"
-        [ -n "$MOD_PANGOLIN_SITE_CONFIG_FILE" ] && export CONFIG_FILE="$MOD_PANGOLIN_SITE_CONFIG_FILE"
-
-        export NEWT_SYSTEM_SUBSTRATE="ADVANTECH_ROUTER_APP"
-        export NEWT_PID_FILE="$PIDFILE"
-
-        echo "Starting $MODNAME..."
-        if [ -n "$MOD_PANGOLIN_SITE_PREFER_ENDPOINT" ]; then
-            /opt/$MODNAME/bin/newt --prefer-endpoint "$MOD_PANGOLIN_SITE_PREFER_ENDPOINT" >> "$LOGFILE" 2>&1 &
-        else
-            /opt/$MODNAME/bin/newt >> "$LOGFILE" 2>&1 &
-        fi
-        echo $! > "$PIDFILE"
-        echo "Started $MODNAME (PID: $(cat "$PIDFILE"))"
-        exit 0
-        ;;
-    stop)
-        echo "Stopping $MODNAME..."
-        if [ -f "$PIDFILE" ]; then
-            kill "$(cat "$PIDFILE" 2>/dev/null)" 2>/dev/null
-            rm -f "$PIDFILE"
-        fi
-        killall newt 2>/dev/null
-        # Stopping newt implies disable at boot.
-        set_setting_raw "MOD_PANGOLIN_SITE_ENABLED" "0"
-        echo "Stopped $MODNAME"
-        exit 0
-        ;;
-    restart)
-        $0 stop
-        sleep 1
-        # Restart should remain enabled after reboot.
-        set_setting_raw "MOD_PANGOLIN_SITE_ENABLED" "1"
-        $0 start
-        ;;
-    status)
-        if [ -f "$PIDFILE" ] && kill -0 "$(cat "$PIDFILE" 2>/dev/null)" 2>/dev/null; then
-            echo "$MODNAME is running (PID: $(cat "$PIDFILE"))"
-            exit 0
-        else
-            echo "$MODNAME is not running"
-            exit 1
-        fi
-        ;;
-    defaults)
-        cp /opt/$MODNAME/etc/defaults /opt/$MODNAME/etc/settings 2>/dev/null
-        ;;
-    *)
-        echo "Usage: $0 {start|stop|restart|status|defaults}"
-        exit 1
-esac

packages/advantech/merge/etc/install

@@ -1,15 +0,0 @@
-#!/bin/sh
-
-MODNAME=newt
-
-# Ensure scripts are executable
-chmod +x /opt/$MODNAME/etc/init
-chmod +x /opt/$MODNAME/etc/install
-chmod +x /opt/$MODNAME/etc/uninstall
-chmod +x /opt/$MODNAME/bin/newt
-chmod +x /opt/$MODNAME/www/index.cgi
-
-# Secure the web interface with router authentication
-ln -sf /etc/htpasswd /opt/$MODNAME/www/.htpasswd
-
-exit 0

packages/advantech/merge/etc/name

@@ -1 +0,0 @@
-Pangolin Site

packages/advantech/merge/etc/summary

@@ -1 +0,0 @@
-Tunnel client for Pangolin secure remote access.

packages/advantech/merge/etc/uninstall

@@ -1,9 +0,0 @@
-#!/bin/sh
-
-MODNAME=newt
-
-rm -f /opt/$MODNAME/www/.htpasswd
-rm -f /tmp/newt.pid
-rm -f /tmp/newt.log
-
-exit 0

packages/advantech/merge/etc/version

@@ -1 +0,0 @@
-1.12.5

packages/advantech/merge/www/index.cgi

@@ -1,282 +0,0 @@
-#!/bin/sh
-
-MODNAME=newt
-SETTINGS=/opt/$MODNAME/etc/settings
-LOGFILE=/tmp/newt.log
-PIDFILE=/tmp/newt.pid
-
-# Escape special HTML characters
-htmlesc() {
-    printf '%s' "$1" | sed \
-        -e 's/&/\&/g' \
-        -e 's/</\&lt;/g' \
-        -e 's/>/\&gt;/g' \
-        -e 's/"/\&quot;/g'
-}
-
-# Decode URL-encoded form values (handles common chars in endpoints/ids/secrets)
-urldecode() {
-    printf '%s' "$1" | sed \
-        -e 's/+/ /g' \
-        -e 's/%3[Aa]/:/g' -e 's/%3[aa]/:/g' \
-        -e 's/%2[Ff]/\//g' -e 's/%2[ff]/\//g' \
-        -e 's/%40/@/g' \
-        -e 's/%2[Ee]/./g' \
-        -e 's/%2[Dd]/-/g' \
-        -e 's/%5[Ff]/_/g' \
-        -e 's/%3[Dd]/=/g' \
-        -e 's/%3[Ff]/?/g' \
-        -e 's/%23/#/g' \
-        -e 's/%25/%/g'
-}
-
-# Extract a named field from URL-encoded POST data (awk splits on & without tr)
-get_field() {
-    printf '%s' "$2" | awk -v f="${1}=" 'BEGIN{RS="&"} index($0,f)==1 {print substr($0,length(f)+1); exit}'
-}
-
-# Check whether newt process is alive
-is_running() {
-    [ -f "$PIDFILE" ] && kill -0 "$(cat "$PIDFILE" 2>/dev/null)" 2>/dev/null
-}
-
-ensure_settings_file() {
-  [ -f "$SETTINGS" ] && return
-  if [ -f "/opt/$MODNAME/etc/defaults" ]; then
-    cp "/opt/$MODNAME/etc/defaults" "$SETTINGS" 2>/dev/null
-  else
-    printf 'MOD_PANGOLIN_SITE_ENABLED=0\n' > "$SETTINGS"
-  fi
-}
-
-set_setting_raw() {
-  key="$1"
-  value="$2"
-  ensure_settings_file
-  awk -v k="$key" -v v="$value" '
-    BEGIN { done=0 }
-    index($0, k "=") == 1 { print k "=" v; done=1; next }
-    { print }
-    END { if (!done) print k "=" v }
-  ' "$SETTINGS" > "$SETTINGS.tmp" && mv "$SETTINGS.tmp" "$SETTINGS"
-}
-
-quote_sh_value() {
-  printf '%s' "$1" | sed -e 's/\\/\\\\/g' -e 's/"/\\"/g'
-}
-
-# ── Read POST body ──────────────────────────────────────────────────────────
-POST_DATA=""
-if [ "$REQUEST_METHOD" = "POST" ] && [ -n "$CONTENT_LENGTH" ] && [ "$CONTENT_LENGTH" -gt 0 ] 2>/dev/null; then
-    POST_DATA=$(dd bs="$CONTENT_LENGTH" count=1 2>/dev/null)
-fi
-
-# ── Load current settings ───────────────────────────────────────────────────
-MOD_PANGOLIN_SITE_ENABLED=0
-MOD_PANGOLIN_SITE_ENDPOINT=""
-MOD_PANGOLIN_SITE_ID=""
-MOD_PANGOLIN_SITE_SECRET=""
-[ -f "$SETTINGS" ] && . "$SETTINGS"
-
-# ── Handle actions ──────────────────────────────────────────────────────────
-if [ -n "$POST_DATA" ]; then
-    ACTION=$(get_field "action" "$POST_DATA")
-    case "$ACTION" in
-        save)
-            EP=$(urldecode "$(get_field "endpoint" "$POST_DATA")")
-            ID=$(urldecode "$(get_field "id"       "$POST_DATA")")
-            SEC=$(urldecode "$(get_field "secret"  "$POST_DATA")")
-        set_setting_raw "MOD_PANGOLIN_SITE_ENDPOINT" "\"$(quote_sh_value "$EP")\""
-        set_setting_raw "MOD_PANGOLIN_SITE_ID" "\"$(quote_sh_value "$ID")\""
-        set_setting_raw "MOD_PANGOLIN_SITE_SECRET" "\"$(quote_sh_value "$SEC")\""
-            ;;
-        start)
-        set_setting_raw "MOD_PANGOLIN_SITE_ENABLED" "1"
-            /opt/$MODNAME/etc/init start >/dev/null 2>&1
-            ;;
-        stop)
-            /opt/$MODNAME/etc/init stop >/dev/null 2>&1
-        set_setting_raw "MOD_PANGOLIN_SITE_ENABLED" "0"
-            ;;
-        restart)
-        set_setting_raw "MOD_PANGOLIN_SITE_ENABLED" "1"
-            /opt/$MODNAME/etc/init restart >/dev/null 2>&1
-            ;;
-        clearlog)
-            printf '' > "$LOGFILE"
-            ;;
-    esac
-fi
-
-# Reload settings after actions.
-MOD_PANGOLIN_SITE_ENABLED=0
-MOD_PANGOLIN_SITE_ENDPOINT=""
-MOD_PANGOLIN_SITE_ID=""
-MOD_PANGOLIN_SITE_SECRET=""
-[ -f "$SETTINGS" ] && . "$SETTINGS"
-
-# ── Status ──────────────────────────────────────────────────────────────────
-if is_running; then
-    STATUS_TEXT="Running"
-    STATUS_CLASS="running"
-    DISABLED="disabled"
-  SETTINGS_HINT='<div class="notice">Stop Newt first to edit settings.</div>'
-else
-    STATUS_TEXT="Stopped"
-    STATUS_CLASS="stopped"
-    DISABLED=""
-    SETTINGS_HINT=""
-fi
-
-EP_ESC=$(htmlesc  "$MOD_PANGOLIN_SITE_ENDPOINT")
-ID_ESC=$(htmlesc  "$MOD_PANGOLIN_SITE_ID")
-SEC_ESC=$(htmlesc "$MOD_PANGOLIN_SITE_SECRET")
-EP_INPUT_ESC="$EP_ESC"
-[ -z "$MOD_PANGOLIN_SITE_ENDPOINT" ] && EP_INPUT_ESC="https://app.pangolin.net"
-
-# ── Log (escape HTML and dollar signs to prevent shell expansion in heredoc) ─
-LOG_HTML=""
-if [ -f "$LOGFILE" ]; then
-    LOG_HTML=$(tail -100 "$LOGFILE" 2>/dev/null | sed \
-        -e 's/&/\&amp;/g' \
-        -e 's/</\&lt;/g'  \
-        -e 's/>/\&gt;/g'  \
-        -e 's/\$/\&#36;/g')
-fi
-
-# ── Output ──────────────────────────────────────────────────────────────────
-printf 'Content-type: text/html\r\n\r\n'
-
-# Static head — split around the conditional refresh meta tag
-cat << 'HEAD_START'
-<!DOCTYPE html>
-<html>
-<head>
-<meta charset="UTF-8">
-HEAD_START
-
-# Only auto-refresh while newt is running (avoids wiping settings form mid-edit)
-[ "$STATUS_CLASS" = "running" ] && printf '<meta http-equiv="refresh" content="10">\n'
-
-cat << 'STATIC_HEAD'
-<title>Pangolin Site</title>
-<style>
-*{box-sizing:border-box}
-body{margin:0;padding:8px;border-top:3px solid #79BD28;background:#fff;color:#000}
-body,table,tr,td,a,input,select,textarea,button{font-family:Verdana,Arial,Helvetica,sans-serif;font-size:12px}
-a{color:#004280;text-decoration:none}
-a:hover{text-decoration:underline}
-.topline{display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap;margin-bottom:6px}
-.app-title{background:#004280;color:#fff;font-weight:bold;padding:6px 8px;border:1px solid #00315f;border-bottom:none}
-.window{background:#f4f4f4;border:2px solid #004280;padding:0}
-.section{border-top:1px solid #9fb7d5}
-.section:first-child{border-top:none}
-.section-head{background:#c0e0ff;color:#000;font-weight:bold;padding:5px 8px;border-bottom:1px solid #9fb7d5;display:flex;align-items:center;justify-content:space-between;gap:8px;flex-wrap:wrap}
-.section-body{padding:10px 8px}
-.badge{display:inline-block;padding:2px 10px;border-radius:2px;color:#fff;font-weight:bold;line-height:1.4}
-.running{background:#008000}
-.stopped{background:#800000}
-.row{display:flex;align-items:center;gap:8px;margin:6px 0}
-.row label{width:90px;font-weight:bold}
-.row input{width:360px;max-width:100%;padding:2px 4px;border:1px solid #7f9db9;background:#fff;height:23px}
-.btn{height:24px;padding:0 10px;border:1px solid #7f9db9;background:#efefef;color:#000;cursor:pointer}
-.btn:disabled{color:#777;background:#e5e5e5}
-.btn + .btn{margin-left:6px}
-.btn-start{border-color:#2d7a2d;background:#dff0df}
-.btn-stop{border-color:#8a2c2c;background:#f7dddd}
-.btn-restart{border-color:#9a6a1f;background:#f7ecd8}
-.btn-save{border-color:#2e5f92;background:#dce9f8}
-.hint{color:#808080;font-weight:normal}
-.notice{margin:0 0 10px 0;color:#ff0000;font-style:italic}
-.log{background:#fff;border:1px solid #7f9db9;color:#000;font-family:monospace;font-size:12px;line-height:1.35;padding:6px;height:300px;overflow-y:auto;white-space:pre-wrap;word-break:break-word}
-</style>
-</head>
-<body>
-<div class="topline">
-<a href="/">&laquo; Back to Router</a>
-</div>
-<div class="app-title">Router Apps - Pangolin Site</div>
-<div class="window">
-STATIC_HEAD
-
-# Status card (double-quoted heredoc — variables expand)
-cat << STATUS_CARD
-<div class="section">
-<div class="section-head">Status</div>
-<div class="section-body">
-<div><span class="badge ${STATUS_CLASS}">${STATUS_TEXT}</span></div>
-<div style="margin-top:8px">
-<form method="post" style="display:inline">
-  <input type="hidden" name="action" value="start">
-  <button class="btn btn-start" type="submit">Start</button>
-</form>
-<form method="post" style="display:inline">
-  <input type="hidden" name="action" value="stop">
-  <button class="btn btn-stop" type="submit">Stop</button>
-</form>
-<form method="post" style="display:inline">
-  <input type="hidden" name="action" value="restart">
-  <button class="btn btn-restart" type="submit">Restart</button>
-</form>
-</div>
-</div>
-</div>
-STATUS_CARD
-
-# Settings card
-cat << SETTINGS_CARD
-<div class="section">
-<div class="section-head">Settings</div>
-<div class="section-body">
-${SETTINGS_HINT}<form method="post">
-  <input type="hidden" name="action" value="save">
-  <div class="row">
-    <label>Endpoint</label>
-    <input type="text" name="endpoint" value="${EP_INPUT_ESC}" ${DISABLED}>
-  </div>
-  <div class="row">
-    <label>ID</label>
-    <input type="text" name="id" value="${ID_ESC}" ${DISABLED}>
-  </div>
-  <div class="row">
-    <label>Secret</label>
-    <input type="password" name="secret" value="${SEC_ESC}" ${DISABLED}>
-  </div>
-  <div style="margin-top:12px">
-    <button class="btn btn-save" type="submit" ${DISABLED}>Save</button>
-  </div>
-</form>
-</div>
-</div>
-SETTINGS_CARD
-
-# Log card header
-cat << 'LOG_HEADER'
-<div class="section">
-<div class="section-head">
-<span>Log <span class="hint">(last 100 lines, auto-refreshes every 10s while running)</span></span>
-<span style="display:inline-flex;gap:6px">
-<form method="post" style="margin:0">
-  <input type="hidden" name="action" value="clearlog">
-  <button class="btn" type="submit">Clear Log</button>
-</form>
-<form method="get" style="margin:0">
-  <button class="btn" type="submit">Refresh</button>
-</form>
-</span>
-</div>
-<div class="section-body">
-<div class="log">
-LOG_HEADER
-
-# Log content — printed with printf to prevent any shell expansion
-printf '%s' "$LOG_HTML"
-
-# Close tags (static)
-cat << 'STATIC_FOOTER'
-</div>
-</div>
-</div>
-</body>
-</html>
-STATIC_FOOTER

proxy/manager.go

@@ -18,34 +18,10 @@ import (
 	"go.opentelemetry.io/otel/attribute"
 	"go.opentelemetry.io/otel/metric"
 	"golang.zx2c4.com/wireguard/tun/netstack"
+	"gvisor.dev/gvisor/pkg/tcpip/adapters/gonet"
 )
 
-const (
-	errUnsupportedProtoFmt = "unsupported protocol: %s"
-	maxUDPPacketSize       = 65507 // Maximum UDP packet size
-	defaultUDPIdleTimeout  = 90 * time.Second
-)
-
-// udpBufferPool provides reusable buffers for UDP packet handling.
-// This reduces GC pressure from frequent large allocations.
-var udpBufferPool = sync.Pool{
-	New: func() any {
-		buf := make([]byte, maxUDPPacketSize)
-		return &buf
-	},
-}
-
-// getUDPBuffer retrieves a buffer from the pool.
-func getUDPBuffer() *[]byte {
-	return udpBufferPool.Get().(*[]byte)
-}
-
-// putUDPBuffer clears and returns a buffer to the pool.
-func putUDPBuffer(buf *[]byte) {
-	// Clear the buffer to prevent data leakage
-	clear(*buf)
-	udpBufferPool.Put(buf)
-}
+const errUnsupportedProtoFmt = "unsupported protocol: %s"
 
 // Target represents a proxy target with its address and port
 type Target struct {
@@ -53,70 +29,21 @@ type Target struct {
 	Port    int
 }
 
-// managedListener wraps a net.Listener so an intentional Close() can be
-// detected reliably by the accept loop. gVisor's netstack (unlike the
-// stdlib) does not return net.ErrClosed from Accept() after Close() - it
-// returns a generic "endpoint is in invalid state" error - so relying on
-// errors.Is(err, net.ErrClosed) leaves the accept loop spinning forever.
-type managedListener struct {
-	net.Listener
-	closed chan struct{}
-}
-
-func newManagedListener(l net.Listener) *managedListener {
-	return &managedListener{Listener: l, closed: make(chan struct{})}
-}
-
-func (m *managedListener) Close() error {
-	err := m.Listener.Close()
-	select {
-	case <-m.closed:
-	default:
-		close(m.closed)
-	}
-	return err
-}
-
-// managedPacketConn is the net.PacketConn equivalent of managedListener.
-type managedPacketConn struct {
-	net.PacketConn
-	closed chan struct{}
-}
-
-func newManagedPacketConn(c net.PacketConn) *managedPacketConn {
-	return &managedPacketConn{PacketConn: c, closed: make(chan struct{})}
-}
-
-func (m *managedPacketConn) Close() error {
-	err := m.PacketConn.Close()
-	select {
-	case <-m.closed:
-	default:
-		close(m.closed)
-	}
-	return err
-}
-
 // ProxyManager handles the creation and management of proxy connections
 type ProxyManager struct {
-	tnet           *netstack.Net
-	tcpTargets     map[string]map[int]string // map[listenIP]map[port]targetAddress
-	udpTargets     map[string]map[int]string
-	listeners      []net.Listener
-	udpConns       []net.PacketConn
-	running        bool
-	mutex          sync.RWMutex
-	nativeListenIP string // when non-empty, use native OS listeners instead of netstack
+	tnet       *netstack.Net
+	tcpTargets map[string]map[int]string // map[listenIP]map[port]targetAddress
+	udpTargets map[string]map[int]string
+	listeners  []*gonet.TCPListener
+	udpConns   []*gonet.UDPConn
+	running    bool
+	mutex      sync.RWMutex
 
 	// telemetry (multi-tunnel)
 	currentTunnelID string
 	tunnels         map[string]*tunnelEntry
 	asyncBytes      bool
 	flushStop       chan struct{}
-	udpIdleTimeout  time.Duration
-
-	// connection blocking
-	blocked atomic.Bool
 }
 
 // tunnelEntry holds per-tunnel attributes and (optional) async counters.
@@ -178,9 +105,13 @@ func classifyProxyError(err error) string {
 	if errors.Is(err, net.ErrClosed) {
 		return "closed"
 	}
-	var ne net.Error
-	if errors.As(err, &ne) && ne.Timeout() {
-		return "timeout"
+	if ne, ok := err.(net.Error); ok {
+		if ne.Timeout() {
+			return "timeout"
+		}
+		if ne.Temporary() {
+			return "temporary"
+		}
 	}
 	msg := strings.ToLower(err.Error())
 	switch {
@@ -193,30 +124,15 @@ func classifyProxyError(err error) string {
 	}
 }
 
-// NewProxyManager creates a new proxy manager instance backed by a netstack.
+// NewProxyManager creates a new proxy manager instance
 func NewProxyManager(tnet *netstack.Net) *ProxyManager {
 	return &ProxyManager{
-		tnet:           tnet,
-		tcpTargets:     make(map[string]map[int]string),
-		udpTargets:     make(map[string]map[int]string),
-		listeners:      make([]net.Listener, 0),
-		udpConns:       make([]net.PacketConn, 0),
-		tunnels:        make(map[string]*tunnelEntry),
-		udpIdleTimeout: defaultUDPIdleTimeout,
-	}
-}
-
-// NewProxyManagerNative creates a proxy manager that binds listeners directly
-// to the host network stack on the given IP address.
-func NewProxyManagerNative(listenIP string) *ProxyManager {
-	return &ProxyManager{
-		nativeListenIP: listenIP,
-		tcpTargets:     make(map[string]map[int]string),
-		udpTargets:     make(map[string]map[int]string),
-		listeners:      make([]net.Listener, 0),
-		udpConns:       make([]net.PacketConn, 0),
-		tunnels:        make(map[string]*tunnelEntry),
-		udpIdleTimeout: defaultUDPIdleTimeout,
+		tnet:       tnet,
+		tcpTargets: make(map[string]map[int]string),
+		udpTargets: make(map[string]map[int]string),
+		listeners:  make([]*gonet.TCPListener, 0),
+		udpConns:   make([]*gonet.UDPConn, 0),
+		tunnels:    make(map[string]*tunnelEntry),
 	}
 }
 
@@ -287,15 +203,13 @@ func (pm *ProxyManager) ClearTunnelID() {
 	pm.currentTunnelID = ""
 }
 
-// NewProxyManagerWithoutTNet creates a proxy manager with no backing network.
-// Call SetTNet before starting.
+// init function without tnet
 func NewProxyManagerWithoutTNet() *ProxyManager {
 	return &ProxyManager{
-		tcpTargets:     make(map[string]map[int]string),
-		udpTargets:     make(map[string]map[int]string),
-		listeners:      make([]net.Listener, 0),
-		udpConns:       make([]net.PacketConn, 0),
-		udpIdleTimeout: defaultUDPIdleTimeout,
+		tcpTargets: make(map[string]map[int]string),
+		udpTargets: make(map[string]map[int]string),
+		listeners:  make([]*gonet.TCPListener, 0),
+		udpConns:   make([]*gonet.UDPConn, 0),
 	}
 }
 
@@ -306,18 +220,6 @@ func (pm *ProxyManager) SetTNet(tnet *netstack.Net) {
 	pm.tnet = tnet
 }
 
-// SetBlocked enables or disables connection blocking.
-// When enabled, all new incoming TCP connections are immediately closed
-// and all incoming UDP packets are silently dropped.
-func (pm *ProxyManager) SetBlocked(v bool) {
-	pm.blocked.Store(v)
-	if v {
-		logger.Debug("ProxyManager: connection blocking enabled, new connections will be dropped")
-	} else {
-		logger.Debug("ProxyManager: connection blocking disabled, accepting connections")
-	}
-}
-
 // AddTarget adds as new target for proxying
 func (pm *ProxyManager) AddTarget(proto, listenIP string, port int, targetAddr string) error {
 	pm.mutex.Lock()
@@ -444,17 +346,6 @@ func (pm *ProxyManager) SetAsyncBytes(b bool) {
 		go pm.flushLoop()
 	}
 }
-
-// SetUDPIdleTimeout configures when idle UDP client flows are reclaimed.
-func (pm *ProxyManager) SetUDPIdleTimeout(d time.Duration) {
-	pm.mutex.Lock()
-	defer pm.mutex.Unlock()
-	if d <= 0 {
-		pm.udpIdleTimeout = defaultUDPIdleTimeout
-		return
-	}
-	pm.udpIdleTimeout = d
-}
 func (pm *ProxyManager) flushLoop() {
 	flushInterval := 2 * time.Second
 	if v := os.Getenv("OTEL_METRIC_EXPORT_INTERVAL"); v != "" {
@@ -546,6 +437,14 @@ func (pm *ProxyManager) Stop() error {
 		pm.udpConns = append(pm.udpConns[:i], pm.udpConns[i+1:]...)
 	}
 
+	// // Clear the target maps
+	// for k := range pm.tcpTargets {
+	// 	delete(pm.tcpTargets, k)
+	// }
+	// for k := range pm.udpTargets {
+	// 	delete(pm.udpTargets, k)
+	// }
+
 	// Give active connections a chance to close gracefully
 	time.Sleep(100 * time.Millisecond)
 
@@ -555,46 +454,23 @@ func (pm *ProxyManager) Stop() error {
 func (pm *ProxyManager) startTarget(proto, listenIP string, port int, targetAddr string) error {
 	switch proto {
 	case "tcp":
-		var listener net.Listener
-		if pm.tnet != nil {
-			l, err := pm.tnet.ListenTCP(&net.TCPAddr{Port: port})
-			if err != nil {
-				return fmt.Errorf("failed to create TCP listener: %v", err)
-			}
-			listener = l
-		} else if pm.nativeListenIP != "" {
-			l, err := net.ListenTCP("tcp", &net.TCPAddr{IP: net.ParseIP(pm.nativeListenIP), Port: port})
-			if err != nil {
-				return fmt.Errorf("failed to create native TCP listener on %s:%d: %v", pm.nativeListenIP, port, err)
-			}
-			listener = l
-		} else {
-			return fmt.Errorf("proxy manager has no tnet or native IP configured")
+		listener, err := pm.tnet.ListenTCP(&net.TCPAddr{Port: port})
+		if err != nil {
+			return fmt.Errorf("failed to create TCP listener: %v", err)
 		}
-		ml := newManagedListener(listener)
-		pm.listeners = append(pm.listeners, ml)
-		go pm.handleTCPProxy(ml, targetAddr)
+
+		pm.listeners = append(pm.listeners, listener)
+		go pm.handleTCPProxy(listener, targetAddr)
 
 	case "udp":
-		var conn net.PacketConn
-		if pm.tnet != nil {
-			c, err := pm.tnet.ListenUDP(&net.UDPAddr{Port: port})
-			if err != nil {
-				return fmt.Errorf("failed to create UDP listener: %v", err)
-			}
-			conn = c
-		} else if pm.nativeListenIP != "" {
-			c, err := net.ListenUDP("udp", &net.UDPAddr{IP: net.ParseIP(pm.nativeListenIP), Port: port})
-			if err != nil {
-				return fmt.Errorf("failed to create native UDP listener on %s:%d: %v", pm.nativeListenIP, port, err)
-			}
-			conn = c
-		} else {
-			return fmt.Errorf("proxy manager has no tnet or native IP configured")
+		addr := &net.UDPAddr{Port: port}
+		conn, err := pm.tnet.ListenUDP(addr)
+		if err != nil {
+			return fmt.Errorf("failed to create UDP listener: %v", err)
 		}
-		mc := newManagedPacketConn(conn)
-		pm.udpConns = append(pm.udpConns, mc)
-		go pm.handleUDPProxy(mc, targetAddr)
+
+		pm.udpConns = append(pm.udpConns, conn)
+		go pm.handleUDPProxy(conn, targetAddr)
 
 	default:
 		return fmt.Errorf(errUnsupportedProtoFmt, proto)
@@ -614,21 +490,15 @@ func (pm *ProxyManager) getEntry(id string) *tunnelEntry {
 	return e
 }
 
-func (pm *ProxyManager) handleTCPProxy(listener *managedListener, targetAddr string) {
+func (pm *ProxyManager) handleTCPProxy(listener net.Listener, targetAddr string) {
 	for {
 		conn, err := listener.Accept()
 		if err != nil {
 			telemetry.IncProxyAccept(context.Background(), pm.currentTunnelID, "tcp", "failure", classifyProxyError(err))
-			select {
-			case <-listener.closed:
-				logger.Info("TCP listener closed, stopping proxy handler for %v", listener.Addr())
-				return
-			default:
-			}
 			if !pm.running {
 				return
 			}
-			if errors.Is(err, net.ErrClosed) {
+			if ne, ok := err.(net.Error); ok && !ne.Temporary() {
 				logger.Info("TCP listener closed, stopping proxy handler for %v", listener.Addr())
 				return
 			}
@@ -638,12 +508,6 @@ func (pm *ProxyManager) handleTCPProxy(listener *managedListener, targetAddr str
 		}
 
 		tunnelID := pm.currentTunnelID
-		// Drop connection if blocking is enabled
-		if pm.blocked.Load() {
-			conn.Close()
-			logger.Debug("TCP proxy: connection dropped (blocking enabled)")
-			continue
-		}
 		telemetry.IncProxyAccept(context.Background(), tunnelID, "tcp", "success", "")
 		telemetry.IncProxyConnectionEvent(context.Background(), tunnelID, "tcp", telemetry.ProxyConnectionOpened)
 		if tunnelID != "" {
@@ -699,60 +563,45 @@ func (pm *ProxyManager) handleTCPProxy(listener *managedListener, targetAddr str
 	}
 }
 
-func (pm *ProxyManager) handleUDPProxy(conn *managedPacketConn, targetAddr string) {
-	bufPtr := getUDPBuffer()
-	defer putUDPBuffer(bufPtr)
-	buffer := *bufPtr
+func (pm *ProxyManager) handleUDPProxy(conn *gonet.UDPConn, targetAddr string) {
+	buffer := make([]byte, 65507) // Max UDP packet size
 	clientConns := make(map[string]*net.UDPConn)
 	var clientsMutex sync.RWMutex
 
 	for {
 		n, remoteAddr, err := conn.ReadFrom(buffer)
 		if err != nil {
-			closeAllClients := func() {
+			if !pm.running {
+				// Clean up all connections when stopping
 				clientsMutex.Lock()
 				for _, targetConn := range clientConns {
 					targetConn.Close()
 				}
 				clientConns = nil
 				clientsMutex.Unlock()
-			}
-
-			// Check for intentional closure first: netstack does not
-			// surface net.ErrClosed/io.EOF from ReadFrom() after Close(),
-			// so this channel is the only reliable signal.
-			select {
-			case <-conn.closed:
-				logger.Info("UDP connection closed, stopping proxy handler")
-				closeAllClients()
-				return
-			default:
-			}
-
-			if !pm.running {
-				closeAllClients()
 				return
 			}
 
 			// Check for connection closed conditions
-			if errors.Is(err, io.EOF) || errors.Is(err, net.ErrClosed) {
+			if err == io.EOF || strings.Contains(err.Error(), "use of closed network connection") {
 				logger.Info("UDP connection closed, stopping proxy handler")
-				closeAllClients()
+
+				// Clean up existing client connections
+				clientsMutex.Lock()
+				for _, targetConn := range clientConns {
+					targetConn.Close()
+				}
+				clientConns = nil
+				clientsMutex.Unlock()
+
 				return
 			}
 
 			logger.Error("Error reading UDP packet: %v", err)
-			// Avoid a tight busy-loop if this error persists.
-			time.Sleep(100 * time.Millisecond)
 			continue
 		}
 
 		clientKey := remoteAddr.String()
-		// Drop packet if blocking is enabled
-		if pm.blocked.Load() {
-			logger.Debug("UDP proxy: packet dropped (blocking enabled)")
-			continue
-		}
 		// bytes from client -> target (direction=in)
 		if pm.currentTunnelID != "" && n > 0 {
 			if pm.asyncBytes {
@@ -783,9 +632,6 @@ func (pm *ProxyManager) handleUDPProxy(conn *managedPacketConn, targetAddr strin
 				telemetry.IncProxyAccept(context.Background(), pm.currentTunnelID, "udp", "failure", classifyProxyError(err))
 				continue
 			}
-			// Prevent idle UDP client goroutines from living forever and
-			// retaining large per-connection buffers.
-			_ = targetConn.SetReadDeadline(time.Now().Add(pm.udpIdleTimeout))
 			tunnelID := pm.currentTunnelID
 			telemetry.IncProxyAccept(context.Background(), tunnelID, "udp", "success", "")
 			telemetry.IncProxyConnectionEvent(context.Background(), tunnelID, "udp", telemetry.ProxyConnectionOpened)
@@ -801,10 +647,7 @@ func (pm *ProxyManager) handleUDPProxy(conn *managedPacketConn, targetAddr strin
 			go func(clientKey string, targetConn *net.UDPConn, remoteAddr net.Addr, tunnelID string) {
 				start := time.Now()
 				result := "success"
-				bufPtr := getUDPBuffer()
 				defer func() {
-					// Return buffer to pool first
-					putUDPBuffer(bufPtr)
 					// Always clean up when this goroutine exits
 					clientsMutex.Lock()
 					if storedConn, exists := clientConns[clientKey]; exists && storedConn == targetConn {
@@ -819,18 +662,10 @@ func (pm *ProxyManager) handleUDPProxy(conn *managedPacketConn, targetAddr strin
 					telemetry.IncProxyConnectionEvent(context.Background(), tunnelID, "udp", telemetry.ProxyConnectionClosed)
 				}()
 
-				buffer := *bufPtr
+				buffer := make([]byte, 65507)
 				for {
 					n, _, err := targetConn.ReadFromUDP(buffer)
 					if err != nil {
-						var netErr net.Error
-						if errors.As(err, &netErr) && netErr.Timeout() {
-							return
-						}
-						// Connection closed is normal during cleanup
-						if errors.Is(err, net.ErrClosed) || errors.Is(err, io.EOF) {
-							return // defer will handle cleanup, result stays "success"
-						}
 						logger.Error("Error reading from target: %v", err)
 						result = "failure"
 						return // defer will handle cleanup
@@ -869,8 +704,6 @@ func (pm *ProxyManager) handleUDPProxy(conn *managedPacketConn, targetAddr strin
 			delete(clientConns, clientKey)
 			clientsMutex.Unlock()
 		} else if pm.currentTunnelID != "" && written > 0 {
-			// Extend idle timeout whenever client traffic is observed.
-			_ = targetConn.SetReadDeadline(time.Now().Add(pm.udpIdleTimeout))
 			if pm.asyncBytes {
 				if e := pm.getEntry(pm.currentTunnelID); e != nil {
 					e.bytesInUDP.Add(uint64(written))
@@ -903,28 +736,3 @@ func (pm *ProxyManager) PrintTargets() {
 		}
 	}
 }
-
-// GetTargets returns a copy of the current TCP and UDP targets
-// Returns map[listenIP]map[port]targetAddress for both TCP and UDP
-func (pm *ProxyManager) GetTargets() (tcpTargets map[string]map[int]string, udpTargets map[string]map[int]string) {
-	pm.mutex.RLock()
-	defer pm.mutex.RUnlock()
-
-	tcpTargets = make(map[string]map[int]string)
-	for listenIP, targets := range pm.tcpTargets {
-		tcpTargets[listenIP] = make(map[int]string)
-		for port, targetAddr := range targets {
-			tcpTargets[listenIP][port] = targetAddr
-		}
-	}
-
-	udpTargets = make(map[string]map[int]string)
-	for listenIP, targets := range pm.udpTargets {
-		udpTargets[listenIP] = make(map[int]string)
-		for port, targetAddr := range targets {
-			udpTargets[listenIP][port] = targetAddr
-		}
-	}
-
-	return tcpTargets, udpTargets
-}

proxy/manager_test.go

@@ -1,87 +0,0 @@
-package proxy
-
-import (
-	"context"
-	"net/netip"
-	"os"
-	"strings"
-	"testing"
-	"time"
-
-	"github.com/fosrl/newt/internal/telemetry"
-	"github.com/fosrl/newt/logger"
-	"golang.zx2c4.com/wireguard/tun/netstack"
-)
-
-// TestRemoveTargetStopsAcceptLoop verifies that removing a TCP target on a
-// netstack-backed ProxyManager causes the accept loop goroutine to actually
-// stop retrying, instead of spinning forever logging
-// "Error accepting TCP connection: ... endpoint is in invalid state".
-func TestRemoveTargetStopsAcceptLoop(t *testing.T) {
-	if _, err := telemetry.Init(context.Background(), telemetry.Config{ServiceName: "test"}); err != nil {
-		t.Fatalf("telemetry.Init: %v", err)
-	}
-
-	logFile, err := os.CreateTemp(t.TempDir(), "newt-proxy-test-*.log")
-	if err != nil {
-		t.Fatalf("CreateTemp: %v", err)
-	}
-	defer logFile.Close()
-	logger.SetOutput(logFile)
-	defer logger.SetOutput(os.Stdout)
-
-	_, tnet, err := netstack.CreateNetTUN(
-		[]netip.Addr{netip.MustParseAddr("100.64.0.1")},
-		[]netip.Addr{},
-		1420,
-	)
-	if err != nil {
-		t.Fatalf("CreateNetTUN: %v", err)
-	}
-
-	pm := NewProxyManager(tnet)
-	const listenIP = "100.64.0.1"
-	const port = 53405
-
-	if err := pm.AddTarget("tcp", listenIP, port, "127.0.0.1:9999"); err != nil {
-		t.Fatalf("AddTarget: %v", err)
-	}
-	if err := pm.Start(); err != nil {
-		t.Fatalf("Start: %v", err)
-	}
-
-	if err := pm.RemoveTarget("tcp", listenIP, port); err != nil {
-		t.Fatalf("RemoveTarget: %v", err)
-	}
-
-	// If the bug is present, the accept loop spins every 100ms logging an
-	// error forever. Sample the log twice, 400ms apart; a healthy accept
-	// loop logs the error/close message once (or zero times) and then goes
-	// silent, while the buggy loop keeps appending.
-	time.Sleep(200 * time.Millisecond)
-	countAt1 := countAcceptErrors(t, logFile.Name())
-
-	time.Sleep(400 * time.Millisecond)
-	countAt2 := countAcceptErrors(t, logFile.Name())
-
-	t.Logf("accept-error-ish log lines: at 200ms=%d, at 600ms=%d", countAt1, countAt2)
-
-	if countAt2 > countAt1 {
-		t.Fatalf("accept loop kept logging after RemoveTarget (200ms=%d, 600ms=%d) -- it is spinning forever on the closed netstack listener instead of exiting", countAt1, countAt2)
-	}
-}
-
-func countAcceptErrors(t *testing.T, path string) int {
-	t.Helper()
-	data, err := os.ReadFile(path)
-	if err != nil {
-		t.Fatalf("ReadFile: %v", err)
-	}
-	count := 0
-	for _, line := range strings.Split(string(data), "\n") {
-		if strings.Contains(line, "Error accepting TCP connection") {
-			count++
-		}
-	}
-	return count
-}

reexec_unix.go

@@ -1,21 +0,0 @@
-//go:build !windows
-
-package main
-
-import (
-	"fmt"
-	"os"
-	"syscall"
-)
-
-// reexec replaces the current process image with a fresh copy of itself,
-// preserving all arguments and environment variables. On success it never
-// returns (execve replaces the process in-place). On failure it returns an
-// error describing why the exec could not be performed.
-func reexec() error {
-	exe, err := os.Executable()
-	if err != nil {
-		return fmt.Errorf("failed to get executable path: %w", err)
-	}
-	return syscall.Exec(exe, os.Args, os.Environ())
-}

reexec_windows.go

@@ -1,40 +0,0 @@
-//go:build windows
-
-package main
-
-import (
-	"fmt"
-	"os"
-	"os/exec"
-)
-
-// reexec restarts newt. On Windows, execve is not available, so outside of
-// service mode we start a child process and exit (on success this never
-// returns since os.Exit terminates the current process).
-//
-// When running as a Windows service, spawning a detached child would orphan
-// it from the Service Control Manager (the SCM only tracks processes it
-// started itself), and os.Exit would end the process without ever reporting
-// a clean status transition, making the service look like it crashed. So in
-// that case we instead delegate to requestServiceRestart, which asks the SCM
-// itself to relaunch the service.
-func reexec() error {
-	if isWindowsService() {
-		return requestServiceRestart()
-	}
-
-	exe, err := os.Executable()
-	if err != nil {
-		return fmt.Errorf("failed to get executable path: %w", err)
-	}
-	cmd := exec.Command(exe, os.Args[1:]...)
-	cmd.Stdout = os.Stdout
-	cmd.Stderr = os.Stderr
-	cmd.Stdin = os.Stdin
-	cmd.Env = os.Environ()
-	if err := cmd.Start(); err != nil {
-		return fmt.Errorf("failed to start new process: %w", err)
-	}
-	os.Exit(0)
-	return nil // unreachable
-}

scripts/append-release-notes.sh

@@ -0,0 +1,22 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+: "${TAG:?}"
+: "${GHCR_REF:?}"
+: "${DIGEST:?}"
+
+NOTES_FILE="$(mktemp)"
+
+existing_body="$(gh release view "${TAG}" --json body --jq '.body')"
+cat > "${NOTES_FILE}" <<EOF
+${existing_body}
+
+## Container Images
+- GHCR: \`${GHCR_REF}\`
+- Docker Hub: \`${DH_REF:-N/A}\`
+**Digest:** \`${DIGEST}\`
+EOF
+
+gh release edit "${TAG}" --draft --notes-file "${NOTES_FILE}"
+
+rm -f "${NOTES_FILE}"

scripts/nfpm.yaml.tmpl

@@ -0,0 +1,11 @@
+name: __PKG_NAME__
+arch: __ARCH__
+platform: linux
+version: __VERSION__
+section: net
+priority: optional
+maintainer: fosrl
+description: Newt - userspace tunnel client and TCP/UDP proxy
+contents:
+  - src: build/newt
+    dst: /usr/bin/newt

scripts/publish-apt.sh

@@ -0,0 +1,149 @@
+#!/usr/bin/env bash
+set -euo pipefail
+
+# ---- required env ----
+: "${GH_REPO:?}"
+: "${S3_BUCKET:?}"
+: "${AWS_REGION:?}"
+: "${CLOUDFRONT_DISTRIBUTION_ID:?}"
+: "${PKG_NAME:?}"
+: "${SUITE:?}"
+: "${COMPONENT:?}"
+: "${APT_GPG_PRIVATE_KEY:?}"
+
+S3_PREFIX="${S3_PREFIX:-}"
+if [[ -n "${S3_PREFIX}" && "${S3_PREFIX}" != */ ]]; then
+  S3_PREFIX="${S3_PREFIX}/"
+fi
+
+WORKDIR="$(pwd)"
+mkdir -p repo/apt assets build
+
+download_asset() {
+  local tag="$1"
+  local pattern="$2"
+  local attempts=12
+
+  for attempt in $(seq 1 "${attempts}"); do
+    if gh release download "${tag}" -R "${GH_REPO}" -p "${pattern}" -D assets; then
+      return 0
+    fi
+    echo "Asset ${pattern} not available yet (attempt ${attempt}/${attempts}); retrying..."
+    sleep 5
+  done
+
+  echo "ERROR: Failed to download asset ${pattern} for ${tag} after ${attempts} attempts"
+  return 1
+}
+
+echo "${APT_GPG_PRIVATE_KEY}" | gpg --batch --import >/dev/null 2>&1 || true
+
+KEYID="$(gpg --list-secret-keys --with-colons | awk -F: '$1=="sec"{print $5; exit}')"
+if [[ -z "${KEYID}" ]]; then
+  echo "ERROR: No GPG secret key available after import."
+  exit 1
+fi
+
+# Determine which tags to process
+TAGS=""
+if [[ "${BACKFILL_ALL:-false}" == "true" ]]; then
+  echo "Backfill mode: collecting all release tags..."
+  TAGS="$(gh release list -R "${GH_REPO}" --limit 200 --json tagName --jq '.[].tagName')"
+else
+  if [[ -n "${INPUT_TAG:-}" ]]; then
+    TAGS="${INPUT_TAG}"
+  elif [[ -n "${EVENT_TAG:-}" ]]; then
+    TAGS="${EVENT_TAG}"
+  elif [[ -n "${PUSH_TAG:-}" ]]; then
+    TAGS="${PUSH_TAG}"
+  else
+    echo "No tag provided; using latest release tag..."
+    TAGS="$(gh release view -R "${GH_REPO}" --json tagName --jq '.tagName')"
+  fi
+fi
+
+echo "Tags to process:"
+printf '%s\n' "${TAGS}"
+
+# Pull existing repo from S3 so we keep older versions
+echo "Sync existing repo from S3..."
+aws s3 sync "s3://${S3_BUCKET}/${S3_PREFIX}apt/" repo/apt/ >/dev/null 2>&1 || true
+
+# Build and add packages
+while IFS= read -r TAG; do
+  [[ -z "${TAG}" ]] && continue
+  echo "=== Processing tag: ${TAG} ==="
+
+  rm -rf assets build
+  mkdir -p assets build
+
+  deb_amd64="${PKG_NAME}_${TAG}_amd64.deb"
+  deb_arm64="${PKG_NAME}_${TAG}_arm64.deb"
+
+  download_asset "${TAG}" "${deb_amd64}"
+  download_asset "${TAG}" "${deb_arm64}"
+
+  if [[ ! -f "assets/${deb_amd64}" ]]; then
+    echo "ERROR: Missing release asset: ${deb_amd64}"
+    exit 1
+  fi
+  if [[ ! -f "assets/${deb_arm64}" ]]; then
+    echo "ERROR: Missing release asset: ${deb_arm64}"
+    exit 1
+  fi
+
+  mkdir -p "repo/apt/pool/${COMPONENT}/${PKG_NAME:0:1}/${PKG_NAME}/"
+  cp -v assets/*.deb "repo/apt/pool/${COMPONENT}/${PKG_NAME:0:1}/${PKG_NAME}/"
+
+done <<< "${TAGS}"
+
+# Regenerate metadata
+cd repo/apt
+
+for arch in amd64 arm64; do
+  mkdir -p "dists/${SUITE}/${COMPONENT}/binary-${arch}"
+  dpkg-scanpackages -a "${arch}" pool > "dists/${SUITE}/${COMPONENT}/binary-${arch}/Packages"
+  gzip -fk "dists/${SUITE}/${COMPONENT}/binary-${arch}/Packages"
+done
+
+# Release file with hashes
+cat > apt-ftparchive.conf <<EOF
+APT::FTPArchive::Release::Origin "fosrl";
+APT::FTPArchive::Release::Label "newt";
+APT::FTPArchive::Release::Suite "${SUITE}";
+APT::FTPArchive::Release::Codename "${SUITE}";
+APT::FTPArchive::Release::Architectures "amd64 arm64";
+APT::FTPArchive::Release::Components "${COMPONENT}";
+APT::FTPArchive::Release::Description "Newt APT repository";
+EOF
+
+apt-ftparchive -c apt-ftparchive.conf release "dists/${SUITE}" > "dists/${SUITE}/Release"
+
+# Sign Release
+cd "dists/${SUITE}"
+
+gpg --batch --yes --pinentry-mode loopback \
+  ${APT_GPG_PASSPHRASE:+--passphrase "${APT_GPG_PASSPHRASE}"} \
+  --local-user "${KEYID}" \
+  --clearsign -o InRelease Release
+
+gpg --batch --yes --pinentry-mode loopback \
+  ${APT_GPG_PASSPHRASE:+--passphrase "${APT_GPG_PASSPHRASE}"} \
+  --local-user "${KEYID}" \
+  -abs -o Release.gpg Release
+
+# Export public key into apt repo root
+cd ../../..
+gpg --batch --yes --armor --export "${KEYID}" > "${WORKDIR}/repo/apt/public.key"
+
+# Upload to S3
+echo "Uploading to S3..."
+aws s3 sync "${WORKDIR}/repo/apt" "s3://${S3_BUCKET}/${S3_PREFIX}apt/" --delete
+
+# Invalidate metadata
+echo "CloudFront invalidation..."
+aws cloudfront create-invalidation \
+  --distribution-id "${CLOUDFRONT_DISTRIBUTION_ID}" \
+  --paths "/${S3_PREFIX}apt/dists/*" "/${S3_PREFIX}apt/public.key"
+
+echo "Done. Repo base: ${REPO_BASE_URL}"

service_windows.go

@@ -7,11 +7,11 @@ import (
 	"encoding/json"
 	"fmt"
 	"io"
+	"log"
 	"os"
 	"os/signal"
 	"path/filepath"
 	"strings"
-	"sync/atomic"
 	"syscall"
 	"time"
 
@@ -86,44 +86,10 @@ type newtService struct {
 	args []string
 }
 
-// activeService points at the newtService currently running under the SCM,
-// so that requestServiceRestart (called from deep inside the app via
-// cfg.OnRestart) can signal it without threading a reference through the
-// newt package. restartRequested tells Execute's completion path whether the
-// tunnel shut down because of a real Stop/Shutdown control request (report
-// success) or because the app asked to be restarted (report a non-zero exit
-// code so the SCM's configured recovery action relaunches the service as a
-// fresh, SCM-tracked process).
-var (
-	activeService    *newtService
-	restartRequested atomic.Bool
-)
-
-// requestServiceRestart asks the Windows Service Control Manager to relaunch
-// the service. Unlike reexec on other platforms, a Windows service cannot
-// replace its own process image or spawn a detached child that the SCM would
-// recognize - the SCM only respawns processes it started itself. So instead
-// we gracefully stop the current run (same as a real Stop control request)
-// and report a failure exit code on the way out, which - combined with the
-// recovery actions configured in configureRecoveryActions - causes the SCM
-// to start a brand new, properly tracked instance of the service.
-func requestServiceRestart() error {
-	if activeService == nil || activeService.stop == nil {
-		return fmt.Errorf("newt service is not running")
-	}
-	restartRequested.Store(true)
-	activeService.elog.Info(1, "Restart requested; stopping tunnel and asking the service control manager to relaunch")
-	activeService.stop()
-	return nil
-}
-
 func (s *newtService) Execute(args []string, r <-chan svc.ChangeRequest, changes chan<- svc.Status) (bool, uint32) {
 	const cmdsAccepted = svc.AcceptStop | svc.AcceptShutdown
 	changes <- svc.Status{State: svc.StartPending}
 
-	activeService = s
-	restartRequested.Store(false)
-
 	s.elog.Info(1, fmt.Sprintf("Service Execute called with args: %v", args))
 
 	// Load saved service arguments
@@ -204,12 +170,8 @@ func (s *newtService) Execute(args []string, r <-chan svc.ChangeRequest, changes
 				s.elog.Error(1, fmt.Sprintf("Unexpected control request #%d", c))
 			}
 		case <-newtDone:
-			changes <- svc.Status{State: svc.StopPending}
-			if restartRequested.Load() {
-				s.elog.Info(1, "Main newt logic stopped for restart, reporting failure exit code so the SCM relaunches the service")
-				return false, 1
-			}
 			s.elog.Info(1, "Main newt logic completed, stopping service")
+			changes <- svc.Status{State: svc.StopPending}
 			return false, 0
 		}
 	}
@@ -246,52 +208,6 @@ func (s *newtService) runNewt() {
 	}
 }
 
-// configureRecoveryActions tells the Service Control Manager to relaunch the
-// service automatically when it stops with a non-zero exit code. This is
-// what makes requestServiceRestart's approach (report failure, let the SCM
-// respawn us) actually result in a restart.
-func configureRecoveryActions(s *mgr.Service) error {
-	actions := []mgr.RecoveryAction{
-		{Type: mgr.ServiceRestart, Delay: 5 * time.Second},
-		{Type: mgr.ServiceRestart, Delay: 5 * time.Second},
-		{Type: mgr.ServiceRestart, Delay: 30 * time.Second},
-	}
-	if err := s.SetRecoveryActions(actions, 24*60*60); err != nil {
-		return fmt.Errorf("failed to set recovery actions: %v", err)
-	}
-	// By default the SCM only runs recovery actions when a service crashes.
-	// A restart-via-OnRestart is a controlled stop that merely reports a
-	// non-zero exit code, so this flag must be enabled for it to count.
-	if err := s.SetRecoveryActionsOnNonCrashFailures(true); err != nil {
-		return fmt.Errorf("failed to enable recovery actions on non-crash failures: %v", err)
-	}
-	return nil
-}
-
-// ensureRecoveryActionsConfigured is a best-effort check run at service
-// startup so that services installed by older versions of newt (before
-// recovery actions existed) get them configured on their next start, without
-// requiring a reinstall.
-func ensureRecoveryActionsConfigured(name string, elog debug.Log) {
-	m, err := mgr.Connect()
-	if err != nil {
-		elog.Warning(1, fmt.Sprintf("Could not connect to service manager to verify recovery actions: %v", err))
-		return
-	}
-	defer m.Disconnect()
-
-	s, err := m.OpenService(name)
-	if err != nil {
-		elog.Warning(1, fmt.Sprintf("Could not open service to verify recovery actions: %v", err))
-		return
-	}
-	defer s.Close()
-
-	if err := configureRecoveryActions(s); err != nil {
-		elog.Warning(1, fmt.Sprintf("Could not configure recovery actions: %v", err))
-	}
-}
-
 func runService(name string, isDebug bool, args []string) {
 	var err error
 	var elog debug.Log
@@ -309,7 +225,6 @@ func runService(name string, isDebug bool, args []string) {
 	defer elog.Close()
 
 	elog.Info(1, fmt.Sprintf("Starting %s service", name))
-	ensureRecoveryActionsConfigured(name, elog)
 	run := svc.Run
 	if isDebug {
 		run = debug.Run
@@ -369,13 +284,6 @@ func installService() error {
 		return fmt.Errorf("failed to install event log: %v", err)
 	}
 
-	if err := configureRecoveryActions(s); err != nil {
-		// Non-fatal: the service is installed and usable, it just won't
-		// auto-relaunch on an app-initiated restart until this is retried
-		// (ensureRecoveryActionsConfigured does so on every service start).
-		fmt.Printf("Warning: failed to configure service recovery actions: %v\n", err)
-	}
-
 	return nil
 }
 
@@ -741,7 +649,7 @@ func setupWindowsEventLog() {
 	// Set the custom logger output
 	logger.GetLogger().SetOutput(file)
 
-	logger.Debug("Newt service logging initialized - log file: %s", logFile)
+	log.Printf("Newt service logging initialized - log file: %s", logFile)
 }
 
 // handleServiceCommand checks for service management commands and returns true if handled

testing/ws_client.py

@@ -1,60 +0,0 @@
-import asyncio
-import sys
-import websockets
-
-# Argument parsing: Check if HOST and PORT are provided
-if len(sys.argv) < 3 or len(sys.argv) > 4:
-    print("Usage: python ws_client.py <HOST_IP> <HOST_PORT> [ws|wss]")
-    # Example: python ws_client.py 127.0.0.1 8765
-    # Example: python ws_client.py 127.0.0.1 8765 wss
-    sys.exit(1)
-
-HOST = sys.argv[1]
-try:
-    PORT = int(sys.argv[2])
-except ValueError:
-    print("Error: HOST_PORT must be an integer.")
-    sys.exit(1)
-
-if len(sys.argv) == 4:
-    SCHEME = sys.argv[3].lower()
-    if SCHEME not in ("ws", "wss"):
-        print("Error: scheme must be 'ws' or 'wss'.")
-        sys.exit(1)
-else:
-    SCHEME = "ws"
-
-URI = f"{SCHEME}://{HOST}:{PORT}"
-
-# The message to send to the server
-MESSAGE = "Hello WebSocket Server! How are you?"
-
-
-async def main():
-    print(f"Connecting to {URI}...")
-
-    try:
-        async with websockets.connect(URI) as websocket:
-            print(f"Connected to server.")
-            print(f"Sending message: '{MESSAGE}'")
-
-            await websocket.send(MESSAGE)
-
-            response = await websocket.recv()
-
-            print("-" * 30)
-            print(f"Received response from server:")
-            print(f"-> Data: '{response}'")
-
-    except ConnectionRefusedError:
-        print(f"Error: Connection to {URI} was refused. Is the server running?")
-    except websockets.exceptions.InvalidMessage as e:
-        print(f"Error: Server did not respond with a valid WebSocket handshake: {e}")
-    except Exception as e:
-        print(f"Error during communication: {e}")
-
-    print("-" * 30)
-    print("Client finished.")
-
-
-asyncio.run(main())

testing/ws_server.py

@@ -1,49 +0,0 @@
-import asyncio
-import sys
-import websockets
-
-# Optionally take in a positional arg for the port
-if len(sys.argv) > 1:
-    try:
-        PORT = int(sys.argv[1])
-    except ValueError:
-        print("Invalid port number. Using default port 8765.")
-        PORT = 8765
-else:
-    PORT = 8765
-
-# Define the server host
-HOST = "0.0.0.0"
-
-
-async def handle_client(websocket):
-    client_address = websocket.remote_address
-    print(f"Client connected: {client_address[0]}:{client_address[1]}")
-
-    try:
-        async for message in websocket:
-            print("-" * 30)
-            print(f"Received message from {client_address[0]}:{client_address[1]}:")
-            print(f"-> Data: '{message}'")
-
-            response = f"Hello client! Server received: '{message.upper()}'"
-
-            await websocket.send(response)
-            print(f"Sent response back to client.")
-
-    except websockets.exceptions.ConnectionClosedOK:
-        print(f"Client {client_address[0]}:{client_address[1]} disconnected cleanly.")
-    except websockets.exceptions.ConnectionClosedError as e:
-        print(f"Client {client_address[0]}:{client_address[1]} disconnected with error: {e}")
-
-
-async def main():
-    print(f"WebSocket Server listening on {HOST}:{PORT}")
-    async with websockets.serve(handle_client, HOST, PORT):
-        await asyncio.Future()  # Run forever
-
-
-try:
-    asyncio.run(main())
-except KeyboardInterrupt:
-    print("\nServer stopped.")

updates/advantech.go

@@ -1,48 +0,0 @@
-//go:build !windows
-
-package updates
-
-import (
-	"fmt"
-	"os"
-	"path/filepath"
-
-	"github.com/fosrl/newt/logger"
-)
-
-const advantechVersionFile = "/opt/newt/etc/version"
-
-// postUpdateAdvantech performs Advantech Router App-specific post-update steps:
-//   - Writes the new version string to /opt/newt/etc/version so that the
-//     router firmware's package management reflects the installed version.
-//   - Updates the PID file at pidFile (if non-empty) with the current process
-//     PID, in case the re-exec lands with a new PID on platforms where
-//     syscall.Exec behaviour differs.
-func postUpdateAdvantech(newVersion, pidFile string) error {
-	// --- Write version file ---
-	versionDir := filepath.Dir(advantechVersionFile)
-	if err := os.MkdirAll(versionDir, 0755); err != nil {
-		return fmt.Errorf("advantech: failed to create version directory %s: %w", versionDir, err)
-	}
-
-	if err := os.WriteFile(advantechVersionFile, []byte(newVersion+"\n"), 0644); err != nil {
-		return fmt.Errorf("advantech: failed to write version file %s: %w", advantechVersionFile, err)
-	}
-	logger.Debug("postUpdateAdvantech: wrote version %s to %s", newVersion, advantechVersionFile)
-
-	// --- Update PID file ---
-	// syscall.Exec replaces the process image in-place so the PID is preserved.
-	// We update the PID file here anyway so that any race between the old and
-	// new binary is covered (e.g. on platforms that fork before exec).
-	if pidFile != "" {
-		pid := fmt.Sprintf("%d\n", os.Getpid())
-		if err := os.WriteFile(pidFile, []byte(pid), 0644); err != nil {
-			// Non-fatal: log and continue so the update still proceeds.
-			logger.Debug("postUpdateAdvantech: warning: failed to update PID file %s: %v", pidFile, err)
-		} else {
-			logger.Debug("postUpdateAdvantech: updated PID file %s with PID %d", pidFile, os.Getpid())
-		}
-	}
-
-	return nil
-}