build: add x64 openbsd (#4780)

Co-authored-by: CrynTox <>

.circleci/config.yml

@@ -2,24 +2,15 @@ version: 2
 jobs:
   go-version-latest:
     docker:
-      - image: cimg/go:1.21-node
+    - image: cimg/go:1.23-node
     resource_class: large
     steps:
-      - checkout
-      - run: make
-      - run: make alltest
-  go-version-last:
-    docker:
-      - image: cimg/go:1.20-node
-    resource_class: large
-    steps:
-      - checkout
-      - run: make
-      - run: make alltest
+    - checkout
+    - run: make
+    - run: make alltest
 
 workflows:
   version: 2
   build_and_test:
     jobs:
-      - go-version-latest
-      - go-version-last
+    - go-version-latest

.github/FUNDING.yml

@@ -1,4 +1,4 @@
 # These are supported funding model platforms
 
 github: [fatedier]
-custom: ["https://afdian.net/a/fatedier"]
+custom: ["https://afdian.com/a/fatedier"]

.github/pull_request_template.md

@@ -1,6 +1,3 @@
-### Summary
-
-copilot:summary
-
 ### WHY
+
 <!-- author to complete -->

.github/workflows/build-and-push-image.yml

@@ -2,7 +2,7 @@ name: Build Image and Publish to Dockerhub & GPR
 
 on:
   release:
-    types: [ created ]
+    types: [ published ]
   workflow_dispatch:
     inputs:
       tag:
@@ -19,15 +19,15 @@ jobs:
     steps:
       # environment
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: '0'
 
       - name: Set up QEMU
-        uses: docker/setup-qemu-action@v2
+        uses: docker/setup-qemu-action@v3
 
       - name: Set up Docker Buildx
-        uses: docker/setup-buildx-action@v2
+        uses: docker/setup-buildx-action@v3
 
       # get image tag name
       - name: Get Image Tag Name
@@ -38,13 +38,13 @@ jobs:
             echo "TAG_NAME=${{ github.event.inputs.tag }}" >> $GITHUB_ENV
           fi
       - name: Login to DockerHub
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           username: ${{ secrets.DOCKERHUB_USERNAME }}
           password: ${{ secrets.DOCKERHUB_PASSWORD }}
 
       - name: Login to the GPR
-        uses: docker/login-action@v2
+        uses: docker/login-action@v3
         with:
           registry: ghcr.io
           username: ${{ github.repository_owner }}
@@ -61,7 +61,7 @@ jobs:
           echo "TAG_FRPS_GPR=ghcr.io/fatedier/frps:${{ env.TAG_NAME }}" >> $GITHUB_ENV
 
       - name: Build and push frpc
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v5
         with:
           context: .
           file: ./dockerfiles/Dockerfile-for-frpc
@@ -72,7 +72,7 @@ jobs:
             ${{ env.TAG_FRPC_GPR }}
 
       - name: Build and push frps
-        uses: docker/build-push-action@v4
+        uses: docker/build-push-action@v5
         with:
           context: .
           file: ./dockerfiles/Dockerfile-for-frps

.github/workflows/golangci-lint.yml

@@ -14,28 +14,29 @@ jobs:
     name: lint
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/setup-go@v4
-        with:
-          go-version: '1.21'
-      - uses: actions/checkout@v3
-      - name: golangci-lint
-        uses: golangci/golangci-lint-action@v3
-        with:
-          # Optional: version of golangci-lint to use in form of v1.2 or v1.2.3 or `latest` to use the latest version
-          version: v1.53
+    - uses: actions/checkout@v4
+    - uses: actions/setup-go@v5
+      with:
+        go-version: '1.23'
+        cache: false
+    - name: golangci-lint
+      uses: golangci/golangci-lint-action@v4
+      with:
+        # Optional: version of golangci-lint to use in form of v1.2 or v1.2.3 or `latest` to use the latest version
+        version: v1.61
 
-          # Optional: golangci-lint command line arguments.
-          # args: --issues-exit-code=0
+        # Optional: golangci-lint command line arguments.
+        # args: --issues-exit-code=0
 
-          # Optional: show only new issues if it's a pull request. The default value is `false`.
-          # only-new-issues: true
+        # Optional: show only new issues if it's a pull request. The default value is `false`.
+        # only-new-issues: true
 
-          # Optional: if set to true then the all caching functionality will be complete disabled,
-          #           takes precedence over all other caching options.
-          # skip-cache: true
+        # Optional: if set to true then the all caching functionality will be complete disabled,
+        #           takes precedence over all other caching options.
+        # skip-cache: true
 
-          # Optional: if set to true then the action don't cache or restore ~/go/pkg.
-          # skip-pkg-cache: true
+        # Optional: if set to true then the action don't cache or restore ~/go/pkg.
+        # skip-pkg-cache: true
 
-          # Optional: if set to true then the action don't cache or restore ~/.cache/go-build.
-          # skip-build-cache: true
+        # Optional: if set to true then the action don't cache or restore ~/.cache/go-build.
+        # skip-build-cache: true

.github/workflows/goreleaser.yml

@@ -8,21 +8,21 @@ jobs:
     runs-on: ubuntu-latest
     steps:
       - name: Checkout
-        uses: actions/checkout@v3
+        uses: actions/checkout@v4
         with:
           fetch-depth: 0
 
       - name: Set up Go
-        uses: actions/setup-go@v4
+        uses: actions/setup-go@v5
         with:
-          go-version: '1.21'
+          go-version: '1.23'
           
       - name: Make All
         run: |
           ./package.sh
 
       - name: Run GoReleaser
-        uses: goreleaser/goreleaser-action@v4
+        uses: goreleaser/goreleaser-action@v5
         with:
           version: latest
           args: release --clean --release-notes=./Release.md

.github/workflows/stale.yml

@@ -16,19 +16,20 @@ jobs:
     permissions:
       issues: write  # for actions/stale to close stale issues
       pull-requests: write  # for actions/stale to close stale PRs
+      actions: write
     runs-on: ubuntu-latest
     steps:
-    - uses: actions/stale@v8
+    - uses: actions/stale@v9
       with:
-        repo-token: ${{ secrets.GITHUB_TOKEN }}
-        stale-issue-message: 'Issues go stale after 30d of inactivity. Stale issues rot after an additional 7d of inactivity and eventually close.'
-        stale-pr-message: "PRs go stale after 30d of inactivity. Stale PRs rot after an additional 7d of inactivity and eventually close."
+        stale-issue-message: 'Issues go stale after 14d of inactivity. Stale issues rot after an additional 3d of inactivity and eventually close.'
+        stale-pr-message: "PRs go stale after 14d of inactivity. Stale PRs rot after an additional 3d of inactivity and eventually close."
         stale-issue-label: 'lifecycle/stale'
         exempt-issue-labels: 'bug,doc,enhancement,future,proposal,question,testing,todo,easy,help wanted,assigned'
         stale-pr-label: 'lifecycle/stale'
         exempt-pr-labels: 'bug,doc,enhancement,future,proposal,question,testing,todo,easy,help wanted,assigned'
-        days-before-stale: 30
-        days-before-close: 7
+        days-before-stale: 14
+        days-before-close: 3
         debug-only: ${{ github.event.inputs.debug-only }}
         exempt-all-pr-milestones: true
         exempt-all-pr-assignees: true
+        operations-per-run: 200

.gitignore

@@ -33,6 +33,9 @@ lastversion/
 dist/
 .idea/
 .vscode/
+.autogen_ssh_key
+client.crt
+client.key
 
 # Cache
 *.swp

.golangci.yml

@@ -1,37 +1,20 @@
 service:
-  golangci-lint-version: 1.51.x # use the fixed version to not introduce new linters unexpectedly
-  
+  golangci-lint-version: 1.61.x # use the fixed version to not introduce new linters unexpectedly
+
 run:
   concurrency: 4
   # timeout for analysis, e.g. 30s, 5m, default is 1m
-  deadline: 20m
+  timeout: 20m
   build-tags:
   - integ
   - integfuzz
-  # which dirs to skip: they won't be analyzed;
-  # can use regexp here: generated.*, regexp is applied on full path;
-  # default value is empty list, but next dirs are always skipped independently
-  # from this option's value:
-  #       vendor$, third_party$, testdata$, examples$, Godeps$, builtin$
-  skip-dirs:
-    - genfiles$
-    - vendor$
-    - bin$
-
-  # which files to skip: they will be analyzed, but issues from them
-  # won't be reported. Default value is empty list, but there is
-  # no need to include all autogenerated files, we confidently recognize
-  # autogenerated files. If it's not please let us know.
-  skip-files:
-    - ".*\\.pb\\.go"
-    - ".*\\.gen\\.go"
 
 linters:
   disable-all: true
   enable:
   - unused
   - errcheck
-  - exportloopref
+  - copyloopvar
   - gocritic
   - gofumpt
   - goimports
@@ -65,7 +48,8 @@ linters-settings:
     check-blank: false
   govet:
     # report about shadowed variables
-    check-shadowing: false
+    disable:
+    - shadow
   maligned:
     # print struct with more effective memory layout or not, false by default
     suggest-new: true
@@ -103,13 +87,11 @@ linters-settings:
     severity: "low"
     confidence: "low"
     excludes:
-    - G102
-    - G112
-    - G306
     - G401
     - G402
     - G404
     - G501
+    - G115 # integer overflow conversion
 
 issues:
   # List of regexps of issue texts to exclude, empty list by default.
@@ -132,6 +114,17 @@ issues:
   - linters:
     - revive
     text: "unused-parameter"
+  - linters:
+    - unparam
+    text: "is always false"
+
+  exclude-dirs:
+  - genfiles$
+  - vendor$
+  - bin$
+  exclude-files:
+  - ".*\\.pb\\.go"
+  - ".*\\.gen\\.go"
 
   # Independently from option `exclude` we use default exclude patterns,
   # it can be disabled by this option. To list all

Makefile

@@ -1,11 +1,14 @@
-export PATH := $(GOPATH)/bin:$(PATH)
+export PATH := $(PATH):`go env GOPATH`/bin
 export GO111MODULE=on
 LDFLAGS := -s -w
 
-all: fmt build
+all: env fmt build
 
 build: frps frpc
 
+env:
+	@go version
+
 # compile assets into binary file
 file:
 	rm -rf ./assets/frps/static/*
@@ -26,10 +29,10 @@ vet:
 	go vet ./...
 
 frps:
-	env CGO_ENABLED=0 go build -trimpath -ldflags "$(LDFLAGS)" -o bin/frps ./cmd/frps
+	env CGO_ENABLED=0 go build -trimpath -ldflags "$(LDFLAGS)" -tags frps -o bin/frps ./cmd/frps
 
 frpc:
-	env CGO_ENABLED=0 go build -trimpath -ldflags "$(LDFLAGS)" -o bin/frpc ./cmd/frpc
+	env CGO_ENABLED=0 go build -trimpath -ldflags "$(LDFLAGS)" -tags frpc -o bin/frpc ./cmd/frpc
 
 test: gotest
 

Makefile.cross-compiles

@@ -1,23 +1,35 @@
-export PATH := $(GOPATH)/bin:$(PATH)
+export PATH := $(PATH):`go env GOPATH`/bin
 export GO111MODULE=on
 LDFLAGS := -s -w
 
-os-archs=darwin:amd64 darwin:arm64 freebsd:amd64 linux:amd64 linux:arm linux:arm64 windows:amd64 windows:arm64 linux:mips64 linux:mips64le linux:mips:softfloat linux:mipsle:softfloat linux:riscv64
+os-archs=darwin:amd64 darwin:arm64 freebsd:amd64 openbsd:amd64 linux:amd64 linux:arm:7 linux:arm:5 linux:arm64 windows:amd64 windows:arm64 linux:mips64 linux:mips64le linux:mips:softfloat linux:mipsle:softfloat linux:riscv64 linux:loong64 android:arm64
 
 all: build
 
 build: app
 
 app:
-	@$(foreach n, $(os-archs),\
-		os=$(shell echo "$(n)" | cut -d : -f 1);\
-		arch=$(shell echo "$(n)" | cut -d : -f 2);\
-		gomips=$(shell echo "$(n)" | cut -d : -f 3);\
-		target_suffix=$${os}_$${arch};\
-		echo "Build $${os}-$${arch}...";\
-		env CGO_ENABLED=0 GOOS=$${os} GOARCH=$${arch} GOMIPS=$${gomips} go build -trimpath -ldflags "$(LDFLAGS)" -o ./release/frpc_$${target_suffix} ./cmd/frpc;\
-		env CGO_ENABLED=0 GOOS=$${os} GOARCH=$${arch} GOMIPS=$${gomips} go build -trimpath -ldflags "$(LDFLAGS)" -o ./release/frps_$${target_suffix} ./cmd/frps;\
-		echo "Build $${os}-$${arch} done";\
+	@$(foreach n, $(os-archs), \
+		os=$(shell echo "$(n)" | cut -d : -f 1); \
+		arch=$(shell echo "$(n)" | cut -d : -f 2); \
+		extra=$(shell echo "$(n)" | cut -d : -f 3); \
+		flags=''; \
+		target_suffix=$${os}_$${arch}; \
+		if [ "$${os}" = "linux" ] && [ "$${arch}" = "arm" ] && [ "$${extra}" != "" ] ; then \
+			if [ "$${extra}" = "7" ]; then \
+				flags=GOARM=7; \
+				target_suffix=$${os}_arm_hf; \
+			elif [ "$${extra}" = "5" ]; then \
+				flags=GOARM=5; \
+				target_suffix=$${os}_arm; \
+			fi; \
+		elif [ "$${os}" = "linux" ] && ([ "$${arch}" = "mips" ] || [ "$${arch}" = "mipsle" ]) && [ "$${extra}" != "" ] ; then \
+		    flags=GOMIPS=$${extra}; \
+		fi; \
+		echo "Build $${os}-$${arch}$${extra:+ ($${extra})}..."; \
+		env CGO_ENABLED=0 GOOS=$${os} GOARCH=$${arch} $${flags} go build -trimpath -ldflags "$(LDFLAGS)" -tags frpc -o ./release/frpc_$${target_suffix} ./cmd/frpc; \
+		env CGO_ENABLED=0 GOOS=$${os} GOARCH=$${arch} $${flags} go build -trimpath -ldflags "$(LDFLAGS)" -tags frps -o ./release/frps_$${target_suffix} ./cmd/frps; \
+		echo "Build $${os}-$${arch}$${extra:+ ($${extra})} done"; \
 	)
 	@mv ./release/frpc_windows_amd64 ./release/frpc_windows_amd64.exe
 	@mv ./release/frps_windows_amd64 ./release/frps_windows_amd64.exe

README.md

@@ -2,14 +2,30 @@
 
 [![Build Status](https://circleci.com/gh/fatedier/frp.svg?style=shield)](https://circleci.com/gh/fatedier/frp)
 [![GitHub release](https://img.shields.io/github/tag/fatedier/frp.svg?label=release)](https://github.com/fatedier/frp/releases)
+[![Go Report Card](https://goreportcard.com/badge/github.com/fatedier/frp)](https://goreportcard.com/report/github.com/fatedier/frp)
+[![GitHub Releases Stats](https://img.shields.io/github/downloads/fatedier/frp/total.svg?logo=github)](https://somsubhra.github.io/github-release-stats/?username=fatedier&repository=frp)
 
 [README](README.md) | [中文文档](README_zh.md)
 
+## Sponsors
+
+frp is an open source project with its ongoing development made possible entirely by the support of our awesome sponsors. If you'd like to join them, please consider [sponsoring frp's development](https://github.com/sponsors/fatedier).
+
 <h3 align="center">Gold Sponsors</h3>
 <!--gold sponsors start-->
 <p align="center">
-  <a href="https://workos.com/?utm_campaign=github_repo&utm_medium=referral&utm_content=frp&utm_source=github" target="_blank">
-    <img width="350px" src="https://raw.githubusercontent.com/fatedier/frp/dev/doc/pic/sponsor_workos.png">
+  <a href="https://jb.gg/frp" target="_blank">
+    <img width="420px" src="https://raw.githubusercontent.com/fatedier/frp/dev/doc/pic/sponsor_jetbrains.jpg">
+  </a>
+</p>
+<p align="center">
+  <a href="https://github.com/daytonaio/daytona" target="_blank">
+    <img width="420px" src="https://raw.githubusercontent.com/fatedier/frp/dev/doc/pic/sponsor_daytona.png">
+  </a>
+</p>
+<p align="center">
+  <a href="https://github.com/beclab/Olares" target="_blank">
+    <img width="420px" src="https://raw.githubusercontent.com/fatedier/frp/dev/doc/pic/sponsor_olares.jpeg">
   </a>
 </p>
 <!--gold sponsors end-->
@@ -42,7 +58,7 @@ frp also offers a P2P connect mode.
     * [Using Environment Variables](#using-environment-variables)
     * [Split Configures Into Different Files](#split-configures-into-different-files)
     * [Server Dashboard](#server-dashboard)
-    * [Admin UI](#admin-ui)
+    * [Client Admin UI](#client-admin-ui)
     * [Monitor](#monitor)
         * [Prometheus](#prometheus)
     * [Authenticating the Client](#authenticating-the-client)
@@ -71,9 +87,17 @@ frp also offers a P2P connect mode.
     * [Custom Subdomain Names](#custom-subdomain-names)
     * [URL Routing](#url-routing)
     * [TCP Port Multiplexing](#tcp-port-multiplexing)
-    * [Connecting to frps via HTTP PROXY](#connecting-to-frps-via-http-proxy)
+    * [Connecting to frps via PROXY](#connecting-to-frps-via-proxy)
+    * [Port range mapping](#port-range-mapping)
     * [Client Plugins](#client-plugins)
     * [Server Manage Plugins](#server-manage-plugins)
+    * [SSH Tunnel Gateway](#ssh-tunnel-gateway)
+    * [Virtual Network (VirtualNet)](#virtual-network-virtualnet)
+* [Feature Gates](#feature-gates)
+    * [Available Feature Gates](#available-feature-gates)
+    * [Enabling Feature Gates](#enabling-feature-gates)
+    * [Feature Lifecycle](#feature-lifecycle)
+* [Related Projects](#related-projects)
 * [Contributing](#contributing)
 * [Donation](#donation)
     * [GitHub Sponsors](#github-sponsors)
@@ -196,11 +220,11 @@ This example implements multiple SSH services exposed through the same port usin
 
 4. To access internal machine A using SSH ProxyCommand, assuming the username is "test":
 
-  `ssh -o 'proxycommand socat - PROXY:x.x.x.x:machine-a.example.com:22,proxyport=5002' test@machine-a`
+  `ssh -o 'proxycommand socat - PROXY:x.x.x.x:%h:%p,proxyport=5002' test@machine-a.example.com`
 
 5. To access internal machine B, the only difference is the domain name, assuming the username is "test":
 
-  `ssh -o 'proxycommand socat - PROXY:x.x.x.x:machine-b.example.com:22,proxyport=5002' test@machine-b`
+  `ssh -o 'proxycommand socat - PROXY:x.x.x.x:%h:%p,proxyport=5002' test@machine-b.example.com`
 
 ### Accessing Internal Web Services with Custom Domains in LAN
 
@@ -343,7 +367,6 @@ You may substitute `https2https` for the plugin, and point the `localAddr` to a
   # frpc.toml
   serverAddr = "x.x.x.x"
   serverPort = 7000
-  vhostHTTPSPort = 443
 
   [[proxies]]
   name = "test_https2http"
@@ -459,9 +482,11 @@ Read the full example configuration files to find out even more features not des
 
 Examples use TOML format, but you can still use YAML or JSON.
 
-[Full configuration file for frps (Server)](./conf/frps.toml)
+These configuration files is for reference only. Please do not use this configuration directly to run the program as it may have various issues.
 
-[Full configuration file for frpc (Client)](./conf/frpc.toml)
+[Full configuration file for frps (Server)](./conf/frps_full_example.toml)
+
+[Full configuration file for frpc (Client)](./conf/frpc_full_example.toml)
 
 ### Using Environment Variables
 
@@ -503,6 +528,7 @@ includes = ["./confd/*.toml"]
 
 ```toml
 # ./confd/test.toml
+
 [[proxies]]
 name = "ssh"
 type = "tcp"
@@ -518,6 +544,8 @@ Check frp's status and proxies' statistics information by Dashboard.
 Configure a port for dashboard to enable this feature:
 
 ```toml
+# The default value is 127.0.0.1. Change it to 0.0.0.0 when you want to access it from a public network.
+webServer.addr = "0.0.0.0"
 webServer.port = 7500
 # dashboard's username and password are both optional
 webServer.user = "admin"
@@ -614,6 +642,7 @@ The features are off by default. You can turn on encryption and/or compression:
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "ssh"
 type = "tcp"
@@ -769,6 +798,7 @@ We would like to try to allow multiple proxies bind a same remote port with diff
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "ssh"
 type = "tcp"
@@ -789,7 +819,7 @@ You can disable this feature by modify `frps.toml` and `frpc.toml`:
 
 ```toml
 # frps.toml and frpc.toml, must be same
-tcpMux = false
+transport.tcpMux = false
 ```
 
 ### Support KCP Protocol
@@ -874,6 +904,7 @@ This feature is only available for types `tcp`, `http`, `tcpmux` now.
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "test1"
 type = "tcp"
@@ -909,6 +940,7 @@ With health check type **tcp**, the service port will be pinged (TCPing):
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "test1"
 type = "tcp"
@@ -928,6 +960,7 @@ With health check type **http**, an HTTP request will be sent to the service and
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "web"
 type = "http"
@@ -952,6 +985,7 @@ However, speaking of web servers and HTTP requests, your web server might rely o
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "web"
 type = "http"
@@ -964,10 +998,11 @@ The HTTP request will have the `Host` header rewritten to `Host: dev.example.com
 
 ### Setting other HTTP Headers
 
-Similar to `Host`, You can override other HTTP request headers with proxy type `http`.
+Similar to `Host`, You can override other HTTP request and response headers with proxy type `http`.
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "web"
 type = "http"
@@ -975,15 +1010,16 @@ localPort = 80
 customDomains = ["test.example.com"]
 hostHeaderRewrite = "dev.example.com"
 requestHeaders.set.x-from-where = "frp"
+responseHeaders.set.foo = "bar"
 ```
 
-In this example, it will set header `x-from-where: frp` in the HTTP request.
+In this example, it will set header `x-from-where: frp` in the HTTP request and `foo: bar` in the HTTP response.
 
 ### Get Real IP
 
 #### HTTP X-Forwarded-For
 
-This feature is for http proxy only.
+This feature is for `http` proxies or proxies with the `https2http` and `https2https` plugins enabled.
 
 You can get user's real IP from HTTP request headers `X-Forwarded-For`.
 
@@ -995,6 +1031,7 @@ Here is an example for https service:
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "web"
 type = "https"
@@ -1017,6 +1054,7 @@ It can only be enabled when proxy type is http.
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "web"
 type = "http"
@@ -1041,6 +1079,7 @@ Resolve `*.frps.com` to the frps server's IP. This is usually called a Wildcard
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "web"
 type = "http"
@@ -1060,6 +1099,7 @@ frp supports forwarding HTTP requests to different backend web services by url r
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "web01"
 type = "http"
@@ -1135,6 +1175,24 @@ serverPort = 7000
 transport.proxyURL = "http://user:pwd@192.168.1.128:8080"
 ```
 
+### Port range mapping
+
+*Added in v0.56.0*
+
+We can use the range syntax of Go template combined with the built-in `parseNumberRangePair` function to achieve port range mapping.
+
+The following example, when run, will create 8 proxies named `test-6000, test-6001 ... test-6007`, each mapping the remote port to the local port.
+
+```
+{{- range $_, $v := parseNumberRangePair "6000-6006,6007" "6000-6006,6007" }}
+[[proxies]]
+name = "tcp-{{ $v.First }}"
+type = "tcp"
+localPort = {{ $v.First }}
+remotePort = {{ $v.Second }}
+{{- end }}
+```
+
 ### Client Plugins
 
 frpc only forwards requests to local TCP or UDP ports by default.
@@ -1145,6 +1203,7 @@ Using plugin **http_proxy**:
 
 ```toml
 # frpc.toml
+
 [[proxies]]
 name = "http_proxy"
 type = "tcp"
@@ -1163,6 +1222,82 @@ Read the [document](/doc/server_plugin.md).
 
 Find more plugins in [gofrp/plugin](https://github.com/gofrp/plugin).
 
+### SSH Tunnel Gateway
+
+*added in v0.53.0*
+
+frp supports listening to an SSH port on the frps side and achieves TCP protocol proxying through the SSH -R protocol, without relying on frpc.
+
+```toml
+# frps.toml
+sshTunnelGateway.bindPort = 2200
+```
+
+When running `./frps -c frps.toml`, a private key file named `.autogen_ssh_key` will be automatically created in the current working directory. This generated private key file will be used by the SSH server in frps.
+
+Executing the command
+
+```bash
+ssh -R :80:127.0.0.1:8080 v0@{frp address} -p 2200 tcp --proxy_name "test-tcp" --remote_port 9090
+```
+
+sets up a proxy on frps that forwards the local 8080 service to the port 9090.
+
+```bash
+frp (via SSH) (Ctrl+C to quit)
+
+User:
+ProxyName: test-tcp
+Type: tcp
+RemoteAddress: :9090
+```
+
+This is equivalent to:
+
+```bash
+frpc tcp --proxy_name "test-tcp" --local_ip 127.0.0.1 --local_port 8080 --remote_port 9090
+```
+
+Please refer to this [document](/doc/ssh_tunnel_gateway.md) for more information.
+
+### Virtual Network (VirtualNet)
+
+*Alpha feature added in v0.62.0*
+
+The VirtualNet feature enables frp to create and manage virtual network connections between clients and visitors through a TUN interface. This allows for IP-level routing between machines, extending frp beyond simple port forwarding to support full network connectivity.
+
+For detailed information about configuration and usage, please refer to the [VirtualNet documentation](/doc/virtual_net.md).
+
+## Feature Gates
+
+frp supports feature gates to enable or disable experimental features. This allows users to try out new features before they're considered stable.
+
+### Available Feature Gates
+
+| Name | Stage | Default | Description |
+|------|-------|---------|-------------|
+| VirtualNet | ALPHA | false | Virtual network capabilities for frp |
+
+### Enabling Feature Gates
+
+To enable an experimental feature, add the feature gate to your configuration:
+
+```toml
+featureGates = { VirtualNet = true }
+```
+
+### Feature Lifecycle
+
+Features typically go through three stages:
+1. **ALPHA**: Disabled by default, may be unstable
+2. **BETA**: May be enabled by default, more stable but still evolving
+3. **GA (Generally Available)**: Enabled by default, ready for production use
+
+## Related Projects
+
+* [gofrp/plugin](https://github.com/gofrp/plugin) - A repository for frp plugins that contains a variety of plugins implemented based on the frp extension mechanism, meeting the customization needs of different scenarios.
+* [gofrp/tiny-frpc](https://github.com/gofrp/tiny-frpc) - A lightweight version of the frp client (around 3.5MB at minimum) implemented using the ssh protocol, supporting some of the most commonly used features, suitable for devices with limited resources.
+
 ## Contributing
 
 Interested in getting involved? We would like to help you!

README_zh.md

@@ -2,16 +2,32 @@
 
 [![Build Status](https://circleci.com/gh/fatedier/frp.svg?style=shield)](https://circleci.com/gh/fatedier/frp)
 [![GitHub release](https://img.shields.io/github/tag/fatedier/frp.svg?label=release)](https://github.com/fatedier/frp/releases)
+[![Go Report Card](https://goreportcard.com/badge/github.com/fatedier/frp)](https://goreportcard.com/report/github.com/fatedier/frp)
+[![GitHub Releases Stats](https://img.shields.io/github/downloads/fatedier/frp/total.svg?logo=github)](https://somsubhra.github.io/github-release-stats/?username=fatedier&repository=frp)
 
 [README](README.md) | [中文文档](README_zh.md)
 
 frp 是一个专注于内网穿透的高性能的反向代理应用，支持 TCP、UDP、HTTP、HTTPS 等多种协议，且支持 P2P 通信。可以将内网服务以安全、便捷的方式通过具有公网 IP 节点的中转暴露到公网。
 
+## Sponsors
+
+frp 是一个完全开源的项目，我们的开发工作完全依靠赞助者们的支持。如果你愿意加入他们的行列，请考虑 [赞助 frp 的开发](https://github.com/sponsors/fatedier)。
+
 <h3 align="center">Gold Sponsors</h3>
 <!--gold sponsors start-->
 <p align="center">
-  <a href="https://workos.com/?utm_campaign=github_repo&utm_medium=referral&utm_content=frp&utm_source=github" target="_blank">
-    <img width="350px" src="https://raw.githubusercontent.com/fatedier/frp/dev/doc/pic/sponsor_workos.png">
+  <a href="https://jb.gg/frp" target="_blank">
+    <img width="420px" src="https://raw.githubusercontent.com/fatedier/frp/dev/doc/pic/sponsor_jetbrains.jpg">
+  </a>
+</p>
+<p align="center">
+  <a href="https://github.com/daytonaio/daytona" target="_blank">
+    <img width="420px" src="https://raw.githubusercontent.com/fatedier/frp/dev/doc/pic/sponsor_daytona.png">
+  </a>
+</p>
+<p align="center">
+  <a href="https://github.com/beclab/Olares" target="_blank">
+    <img width="420px" src="https://raw.githubusercontent.com/fatedier/frp/dev/doc/pic/sponsor_olares.jpeg">
   </a>
 </p>
 <!--gold sponsors end-->
@@ -66,7 +82,12 @@ frp 是一个免费且开源的项目，我们欢迎任何人为其开发和进
 * 贡献代码请提交 PR 至 dev 分支，master 分支仅用于发布稳定可用版本。
 * 如果你有任何其他方面的问题或合作，欢迎发送邮件至 fatedier@gmail.com 。
 
-**提醒：和项目相关的问题最好在 [issues](https://github.com/fatedier/frp/issues) 中反馈，这样方便其他有类似问题的人可以快速查找解决方法，并且也避免了我们重复回答一些问题。**
+**提醒：和项目相关的问题请在 [issues](https://github.com/fatedier/frp/issues) 中反馈，这样方便其他有类似问题的人可以快速查找解决方法，并且也避免了我们重复回答一些问题。**
+
+## 关联项目
+
+* [gofrp/plugin](https://github.com/gofrp/plugin) - frp 插件仓库，收录了基于 frp 扩展机制实现的各种插件，满足各种场景下的定制化需求。
+* [gofrp/tiny-frpc](https://github.com/gofrp/tiny-frpc) - 基于 ssh 协议实现的 frp 客户端的精简版本(最低约 3.5MB 左右)，支持常用的部分功能，适用于资源有限的设备。
 
 ## 赞助
 
@@ -78,16 +99,12 @@ frp 是一个免费且开源的项目，我们欢迎任何人为其开发和进
 
 您可以通过 [GitHub Sponsors](https://github.com/sponsors/fatedier) 赞助我们。
 
-国内用户可以通过 [爱发电](https://afdian.net/a/fatedier) 赞助我们。
+国内用户可以通过 [爱发电](https://afdian.com/a/fatedier) 赞助我们。
 
 企业赞助者可以将贵公司的 Logo 以及链接放置在项目 README 文件中。
 
 ### 知识星球
 
-如果您想了解更多 frp 相关技术以及更新详解，或者寻求任何帮助及咨询，都可以通过微信扫描下方的二维码付费加入知识星球的官方社群：
+如果您想了解更多 frp 相关技术以及更新详解，或者寻求任何 frp 使用方面的帮助，都可以通过微信扫描下方的二维码付费加入知识星球的官方社群：
 
 ![zsxq](/doc/pic/zsxq.jpg)
-
-### 微信支付捐赠
-
-![donate-wechatpay](/doc/pic/donate-wechatpay.png)

Release.md

@@ -1,3 +1,3 @@
-### Fixes
+### Bug Fixes
 
-* Encryption and compression are not displayed correctly in the dashboard.
+*   **VirtualNet:** Resolved various issues related to connection handling, TUN device management, and stability in the virtual network feature.

assets/frpc/static/index.html

@@ -4,13 +4,12 @@
 <head>
     <meta charset="utf-8">
     <title>frp client admin UI</title>
-  <script type="module" crossorigin src="./index-1c7ed8b0.js"></script>
-  <link rel="stylesheet" href="./index-1e2a7ce0.css">
+  <script type="module" crossorigin src="./index-bLBhaJo8.js"></script>
+  <link rel="stylesheet" crossorigin href="./index-iuf46MlF.css">
 </head>
 
 <body>
     <div id="app"></div>
-    
 </body>
 
 </html>

assets/frps/static/index.html

@@ -4,13 +4,12 @@
 <head>
     <meta charset="utf-8">
     <title>frps dashboard</title>
-  <script type="module" crossorigin src="./index-c322b7dd.js"></script>
-  <link rel="stylesheet" href="./index-1e0c7400.css">
+  <script type="module" crossorigin src="./index-82-40HIG.js"></script>
+  <link rel="stylesheet" crossorigin href="./index-rzPDshRD.css">
 </head>
 
 <body>
     <div id="app"></div>
-    
 </body>
 
 </html>

client/admin.go

@@ -1,85 +0,0 @@
-// Copyright 2017 fatedier, fatedier@gmail.com
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package client
-
-import (
-	"net"
-	"net/http"
-	"net/http/pprof"
-	"time"
-
-	"github.com/gorilla/mux"
-
-	"github.com/fatedier/frp/assets"
-	utilnet "github.com/fatedier/frp/pkg/util/net"
-)
-
-var (
-	httpServerReadTimeout  = 60 * time.Second
-	httpServerWriteTimeout = 60 * time.Second
-)
-
-func (svr *Service) RunAdminServer(address string) (err error) {
-	// url router
-	router := mux.NewRouter()
-
-	router.HandleFunc("/healthz", svr.healthz)
-
-	// debug
-	if svr.cfg.WebServer.PprofEnable {
-		router.HandleFunc("/debug/pprof/cmdline", pprof.Cmdline)
-		router.HandleFunc("/debug/pprof/profile", pprof.Profile)
-		router.HandleFunc("/debug/pprof/symbol", pprof.Symbol)
-		router.HandleFunc("/debug/pprof/trace", pprof.Trace)
-		router.PathPrefix("/debug/pprof/").HandlerFunc(pprof.Index)
-	}
-
-	subRouter := router.NewRoute().Subrouter()
-	user, passwd := svr.cfg.WebServer.User, svr.cfg.WebServer.Password
-	subRouter.Use(utilnet.NewHTTPAuthMiddleware(user, passwd).SetAuthFailDelay(200 * time.Millisecond).Middleware)
-
-	// api, see admin_api.go
-	subRouter.HandleFunc("/api/reload", svr.apiReload).Methods("GET")
-	subRouter.HandleFunc("/api/stop", svr.apiStop).Methods("POST")
-	subRouter.HandleFunc("/api/status", svr.apiStatus).Methods("GET")
-	subRouter.HandleFunc("/api/config", svr.apiGetConfig).Methods("GET")
-	subRouter.HandleFunc("/api/config", svr.apiPutConfig).Methods("PUT")
-
-	// view
-	subRouter.Handle("/favicon.ico", http.FileServer(assets.FileSystem)).Methods("GET")
-	subRouter.PathPrefix("/static/").Handler(utilnet.MakeHTTPGzipHandler(http.StripPrefix("/static/", http.FileServer(assets.FileSystem)))).Methods("GET")
-	subRouter.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
-		http.Redirect(w, r, "/static/", http.StatusMovedPermanently)
-	})
-
-	server := &http.Server{
-		Addr:         address,
-		Handler:      router,
-		ReadTimeout:  httpServerReadTimeout,
-		WriteTimeout: httpServerWriteTimeout,
-	}
-	if address == "" {
-		address = ":http"
-	}
-	ln, err := net.Listen("tcp", address)
-	if err != nil {
-		return err
-	}
-
-	go func() {
-		_ = server.Serve(ln)
-	}()
-	return
-}

client/admin_api.go

@@ -15,23 +15,23 @@
 package client
 
 import (
+	"cmp"
 	"encoding/json"
 	"fmt"
 	"io"
 	"net"
 	"net/http"
 	"os"
-	"sort"
+	"slices"
 	"strconv"
-	"strings"
 	"time"
 
-	"github.com/samber/lo"
-
 	"github.com/fatedier/frp/client/proxy"
 	"github.com/fatedier/frp/pkg/config"
 	"github.com/fatedier/frp/pkg/config/v1/validation"
+	httppkg "github.com/fatedier/frp/pkg/util/http"
 	"github.com/fatedier/frp/pkg/util/log"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
 )
 
 type GeneralResponse struct {
@@ -39,54 +39,82 @@ type GeneralResponse struct {
 	Msg  string
 }
 
+func (svr *Service) registerRouteHandlers(helper *httppkg.RouterRegisterHelper) {
+	helper.Router.HandleFunc("/healthz", svr.healthz)
+	subRouter := helper.Router.NewRoute().Subrouter()
+
+	subRouter.Use(helper.AuthMiddleware.Middleware)
+
+	// api, see admin_api.go
+	subRouter.HandleFunc("/api/reload", svr.apiReload).Methods("GET")
+	subRouter.HandleFunc("/api/stop", svr.apiStop).Methods("POST")
+	subRouter.HandleFunc("/api/status", svr.apiStatus).Methods("GET")
+	subRouter.HandleFunc("/api/config", svr.apiGetConfig).Methods("GET")
+	subRouter.HandleFunc("/api/config", svr.apiPutConfig).Methods("PUT")
+
+	// view
+	subRouter.Handle("/favicon.ico", http.FileServer(helper.AssetsFS)).Methods("GET")
+	subRouter.PathPrefix("/static/").Handler(
+		netpkg.MakeHTTPGzipHandler(http.StripPrefix("/static/", http.FileServer(helper.AssetsFS))),
+	).Methods("GET")
+	subRouter.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
+		http.Redirect(w, r, "/static/", http.StatusMovedPermanently)
+	})
+}
+
 // /healthz
 func (svr *Service) healthz(w http.ResponseWriter, _ *http.Request) {
 	w.WriteHeader(200)
 }
 
 // GET /api/reload
-func (svr *Service) apiReload(w http.ResponseWriter, _ *http.Request) {
+func (svr *Service) apiReload(w http.ResponseWriter, r *http.Request) {
 	res := GeneralResponse{Code: 200}
+	strictConfigMode := false
+	strictStr := r.URL.Query().Get("strictConfig")
+	if strictStr != "" {
+		strictConfigMode, _ = strconv.ParseBool(strictStr)
+	}
 
-	log.Info("api request [/api/reload]")
+	log.Infof("api request [/api/reload]")
 	defer func() {
-		log.Info("api response [/api/reload], code [%d]", res.Code)
+		log.Infof("api response [/api/reload], code [%d]", res.Code)
 		w.WriteHeader(res.Code)
 		if len(res.Msg) > 0 {
 			_, _ = w.Write([]byte(res.Msg))
 		}
 	}()
 
-	cliCfg, pxyCfgs, visitorCfgs, _, err := config.LoadClientConfig(svr.cfgFile)
+	cliCfg, proxyCfgs, visitorCfgs, _, err := config.LoadClientConfig(svr.configFilePath, strictConfigMode)
 	if err != nil {
 		res.Code = 400
 		res.Msg = err.Error()
-		log.Warn("reload frpc proxy config error: %s", res.Msg)
+		log.Warnf("reload frpc proxy config error: %s", res.Msg)
 		return
 	}
-	if _, err := validation.ValidateAllClientConfig(cliCfg, pxyCfgs, visitorCfgs); err != nil {
+	if _, err := validation.ValidateAllClientConfig(cliCfg, proxyCfgs, visitorCfgs); err != nil {
 		res.Code = 400
 		res.Msg = err.Error()
-		log.Warn("reload frpc proxy config error: %s", res.Msg)
+		log.Warnf("reload frpc proxy config error: %s", res.Msg)
 		return
 	}
 
-	if err := svr.ReloadConf(pxyCfgs, visitorCfgs); err != nil {
+	if err := svr.UpdateAllConfigurer(proxyCfgs, visitorCfgs); err != nil {
 		res.Code = 500
 		res.Msg = err.Error()
-		log.Warn("reload frpc proxy config error: %s", res.Msg)
+		log.Warnf("reload frpc proxy config error: %s", res.Msg)
 		return
 	}
-	log.Info("success reload conf")
+	log.Infof("success reload conf")
 }
 
 // POST /api/stop
 func (svr *Service) apiStop(w http.ResponseWriter, _ *http.Request) {
 	res := GeneralResponse{Code: 200}
 
-	log.Info("api request [/api/stop]")
+	log.Infof("api request [/api/stop]")
 	defer func() {
-		log.Info("api response [/api/stop], code [%d]", res.Code)
+		log.Infof("api response [/api/stop], code [%d]", res.Code)
 		w.WriteHeader(res.Code)
 		if len(res.Msg) > 0 {
 			_, _ = w.Write([]byte(res.Msg))
@@ -123,7 +151,7 @@ func NewProxyStatusResp(status *proxy.WorkingStatus, serverAddr string) ProxySta
 
 	if status.Err == "" {
 		psr.RemoteAddr = status.RemoteAddr
-		if lo.Contains([]string{"tcp", "udp"}, status.Type) {
+		if slices.Contains([]string{"tcp", "udp"}, status.Type) {
 			psr.RemoteAddr = serverAddr + psr.RemoteAddr
 		}
 	}
@@ -137,24 +165,31 @@ func (svr *Service) apiStatus(w http.ResponseWriter, _ *http.Request) {
 		res StatusResp = make(map[string][]ProxyStatusResp)
 	)
 
-	log.Info("Http request [/api/status]")
+	log.Infof("http request [/api/status]")
 	defer func() {
-		log.Info("Http response [/api/status]")
+		log.Infof("http response [/api/status]")
 		buf, _ = json.Marshal(&res)
 		_, _ = w.Write(buf)
 	}()
 
-	ps := svr.ctl.pm.GetAllProxyStatus()
+	svr.ctlMu.RLock()
+	ctl := svr.ctl
+	svr.ctlMu.RUnlock()
+	if ctl == nil {
+		return
+	}
+
+	ps := ctl.pm.GetAllProxyStatus()
 	for _, status := range ps {
-		res[status.Type] = append(res[status.Type], NewProxyStatusResp(status, svr.cfg.ServerAddr))
+		res[status.Type] = append(res[status.Type], NewProxyStatusResp(status, svr.common.ServerAddr))
 	}
 
 	for _, arrs := range res {
 		if len(arrs) <= 1 {
 			continue
 		}
-		sort.Slice(arrs, func(i, j int) bool {
-			return strings.Compare(arrs[i].Name, arrs[j].Name) < 0
+		slices.SortFunc(arrs, func(a, b ProxyStatusResp) int {
+			return cmp.Compare(a.Name, b.Name)
 		})
 	}
 }
@@ -163,27 +198,27 @@ func (svr *Service) apiStatus(w http.ResponseWriter, _ *http.Request) {
 func (svr *Service) apiGetConfig(w http.ResponseWriter, _ *http.Request) {
 	res := GeneralResponse{Code: 200}
 
-	log.Info("Http get request [/api/config]")
+	log.Infof("http get request [/api/config]")
 	defer func() {
-		log.Info("Http get response [/api/config], code [%d]", res.Code)
+		log.Infof("http get response [/api/config], code [%d]", res.Code)
 		w.WriteHeader(res.Code)
 		if len(res.Msg) > 0 {
 			_, _ = w.Write([]byte(res.Msg))
 		}
 	}()
 
-	if svr.cfgFile == "" {
+	if svr.configFilePath == "" {
 		res.Code = 400
 		res.Msg = "frpc has no config file path"
-		log.Warn("%s", res.Msg)
+		log.Warnf("%s", res.Msg)
 		return
 	}
 
-	content, err := os.ReadFile(svr.cfgFile)
+	content, err := os.ReadFile(svr.configFilePath)
 	if err != nil {
 		res.Code = 400
 		res.Msg = err.Error()
-		log.Warn("load frpc config file error: %s", res.Msg)
+		log.Warnf("load frpc config file error: %s", res.Msg)
 		return
 	}
 	res.Msg = string(content)
@@ -193,9 +228,9 @@ func (svr *Service) apiGetConfig(w http.ResponseWriter, _ *http.Request) {
 func (svr *Service) apiPutConfig(w http.ResponseWriter, r *http.Request) {
 	res := GeneralResponse{Code: 200}
 
-	log.Info("Http put request [/api/config]")
+	log.Infof("http put request [/api/config]")
 	defer func() {
-		log.Info("Http put response [/api/config], code [%d]", res.Code)
+		log.Infof("http put response [/api/config], code [%d]", res.Code)
 		w.WriteHeader(res.Code)
 		if len(res.Msg) > 0 {
 			_, _ = w.Write([]byte(res.Msg))
@@ -207,21 +242,21 @@ func (svr *Service) apiPutConfig(w http.ResponseWriter, r *http.Request) {
 	if err != nil {
 		res.Code = 400
 		res.Msg = fmt.Sprintf("read request body error: %v", err)
-		log.Warn("%s", res.Msg)
+		log.Warnf("%s", res.Msg)
 		return
 	}
 
 	if len(body) == 0 {
 		res.Code = 400
 		res.Msg = "body can't be empty"
-		log.Warn("%s", res.Msg)
+		log.Warnf("%s", res.Msg)
 		return
 	}
 
-	if err := os.WriteFile(svr.cfgFile, body, 0o644); err != nil {
+	if err := os.WriteFile(svr.configFilePath, body, 0o600); err != nil {
 		res.Code = 500
 		res.Msg = fmt.Sprintf("write content to frpc config file error: %v", err)
-		log.Warn("%s", res.Msg)
+		log.Warnf("%s", res.Msg)
 		return
 	}
 }

client/connector.go

@@ -0,0 +1,227 @@
+// Copyright 2023 The frp Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package client
+
+import (
+	"context"
+	"crypto/tls"
+	"io"
+	"net"
+	"strconv"
+	"strings"
+	"sync"
+	"time"
+
+	libnet "github.com/fatedier/golib/net"
+	fmux "github.com/hashicorp/yamux"
+	quic "github.com/quic-go/quic-go"
+	"github.com/samber/lo"
+
+	v1 "github.com/fatedier/frp/pkg/config/v1"
+	"github.com/fatedier/frp/pkg/transport"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
+	"github.com/fatedier/frp/pkg/util/xlog"
+)
+
+// Connector is an interface for establishing connections to the server.
+type Connector interface {
+	Open() error
+	Connect() (net.Conn, error)
+	Close() error
+}
+
+// defaultConnectorImpl is the default implementation of Connector for normal frpc.
+type defaultConnectorImpl struct {
+	ctx context.Context
+	cfg *v1.ClientCommonConfig
+
+	muxSession *fmux.Session
+	quicConn   quic.Connection
+	closeOnce  sync.Once
+}
+
+func NewConnector(ctx context.Context, cfg *v1.ClientCommonConfig) Connector {
+	return &defaultConnectorImpl{
+		ctx: ctx,
+		cfg: cfg,
+	}
+}
+
+// Open opens an underlying connection to the server.
+// The underlying connection is either a TCP connection or a QUIC connection.
+// After the underlying connection is established, you can call Connect() to get a stream.
+// If TCPMux isn't enabled, the underlying connection is nil, you will get a new real TCP connection every time you call Connect().
+func (c *defaultConnectorImpl) Open() error {
+	xl := xlog.FromContextSafe(c.ctx)
+
+	// special for quic
+	if strings.EqualFold(c.cfg.Transport.Protocol, "quic") {
+		var tlsConfig *tls.Config
+		var err error
+		sn := c.cfg.Transport.TLS.ServerName
+		if sn == "" {
+			sn = c.cfg.ServerAddr
+		}
+		if lo.FromPtr(c.cfg.Transport.TLS.Enable) {
+			tlsConfig, err = transport.NewClientTLSConfig(
+				c.cfg.Transport.TLS.CertFile,
+				c.cfg.Transport.TLS.KeyFile,
+				c.cfg.Transport.TLS.TrustedCaFile,
+				sn)
+		} else {
+			tlsConfig, err = transport.NewClientTLSConfig("", "", "", sn)
+		}
+		if err != nil {
+			xl.Warnf("fail to build tls configuration, err: %v", err)
+			return err
+		}
+		tlsConfig.NextProtos = []string{"frp"}
+
+		conn, err := quic.DialAddr(
+			c.ctx,
+			net.JoinHostPort(c.cfg.ServerAddr, strconv.Itoa(c.cfg.ServerPort)),
+			tlsConfig, &quic.Config{
+				MaxIdleTimeout:     time.Duration(c.cfg.Transport.QUIC.MaxIdleTimeout) * time.Second,
+				MaxIncomingStreams: int64(c.cfg.Transport.QUIC.MaxIncomingStreams),
+				KeepAlivePeriod:    time.Duration(c.cfg.Transport.QUIC.KeepalivePeriod) * time.Second,
+			})
+		if err != nil {
+			return err
+		}
+		c.quicConn = conn
+		return nil
+	}
+
+	if !lo.FromPtr(c.cfg.Transport.TCPMux) {
+		return nil
+	}
+
+	conn, err := c.realConnect()
+	if err != nil {
+		return err
+	}
+
+	fmuxCfg := fmux.DefaultConfig()
+	fmuxCfg.KeepAliveInterval = time.Duration(c.cfg.Transport.TCPMuxKeepaliveInterval) * time.Second
+	fmuxCfg.LogOutput = io.Discard
+	fmuxCfg.MaxStreamWindowSize = 6 * 1024 * 1024
+	session, err := fmux.Client(conn, fmuxCfg)
+	if err != nil {
+		return err
+	}
+	c.muxSession = session
+	return nil
+}
+
+// Connect returns a stream from the underlying connection, or a new TCP connection if TCPMux isn't enabled.
+func (c *defaultConnectorImpl) Connect() (net.Conn, error) {
+	if c.quicConn != nil {
+		stream, err := c.quicConn.OpenStreamSync(context.Background())
+		if err != nil {
+			return nil, err
+		}
+		return netpkg.QuicStreamToNetConn(stream, c.quicConn), nil
+	} else if c.muxSession != nil {
+		stream, err := c.muxSession.OpenStream()
+		if err != nil {
+			return nil, err
+		}
+		return stream, nil
+	}
+
+	return c.realConnect()
+}
+
+func (c *defaultConnectorImpl) realConnect() (net.Conn, error) {
+	xl := xlog.FromContextSafe(c.ctx)
+	var tlsConfig *tls.Config
+	var err error
+	tlsEnable := lo.FromPtr(c.cfg.Transport.TLS.Enable)
+	if c.cfg.Transport.Protocol == "wss" {
+		tlsEnable = true
+	}
+	if tlsEnable {
+		sn := c.cfg.Transport.TLS.ServerName
+		if sn == "" {
+			sn = c.cfg.ServerAddr
+		}
+
+		tlsConfig, err = transport.NewClientTLSConfig(
+			c.cfg.Transport.TLS.CertFile,
+			c.cfg.Transport.TLS.KeyFile,
+			c.cfg.Transport.TLS.TrustedCaFile,
+			sn)
+		if err != nil {
+			xl.Warnf("fail to build tls configuration, err: %v", err)
+			return nil, err
+		}
+	}
+
+	proxyType, addr, auth, err := libnet.ParseProxyURL(c.cfg.Transport.ProxyURL)
+	if err != nil {
+		xl.Errorf("fail to parse proxy url")
+		return nil, err
+	}
+	dialOptions := []libnet.DialOption{}
+	protocol := c.cfg.Transport.Protocol
+	switch protocol {
+	case "websocket":
+		protocol = "tcp"
+		dialOptions = append(dialOptions, libnet.WithAfterHook(libnet.AfterHook{Hook: netpkg.DialHookWebsocket(protocol, "")}))
+		dialOptions = append(dialOptions, libnet.WithAfterHook(libnet.AfterHook{
+			Hook: netpkg.DialHookCustomTLSHeadByte(tlsConfig != nil, lo.FromPtr(c.cfg.Transport.TLS.DisableCustomTLSFirstByte)),
+		}))
+		dialOptions = append(dialOptions, libnet.WithTLSConfig(tlsConfig))
+	case "wss":
+		protocol = "tcp"
+		dialOptions = append(dialOptions, libnet.WithTLSConfigAndPriority(100, tlsConfig))
+		// Make sure that if it is wss, the websocket hook is executed after the tls hook.
+		dialOptions = append(dialOptions, libnet.WithAfterHook(libnet.AfterHook{Hook: netpkg.DialHookWebsocket(protocol, tlsConfig.ServerName), Priority: 110}))
+	default:
+		dialOptions = append(dialOptions, libnet.WithAfterHook(libnet.AfterHook{
+			Hook: netpkg.DialHookCustomTLSHeadByte(tlsConfig != nil, lo.FromPtr(c.cfg.Transport.TLS.DisableCustomTLSFirstByte)),
+		}))
+		dialOptions = append(dialOptions, libnet.WithTLSConfig(tlsConfig))
+	}
+
+	if c.cfg.Transport.ConnectServerLocalIP != "" {
+		dialOptions = append(dialOptions, libnet.WithLocalAddr(c.cfg.Transport.ConnectServerLocalIP))
+	}
+	dialOptions = append(dialOptions,
+		libnet.WithProtocol(protocol),
+		libnet.WithTimeout(time.Duration(c.cfg.Transport.DialServerTimeout)*time.Second),
+		libnet.WithKeepAlive(time.Duration(c.cfg.Transport.DialServerKeepAlive)*time.Second),
+		libnet.WithProxy(proxyType, addr),
+		libnet.WithProxyAuth(auth),
+	)
+	conn, err := libnet.DialContext(
+		c.ctx,
+		net.JoinHostPort(c.cfg.ServerAddr, strconv.Itoa(c.cfg.ServerPort)),
+		dialOptions...,
+	)
+	return conn, err
+}
+
+func (c *defaultConnectorImpl) Close() error {
+	c.closeOnce.Do(func() {
+		if c.quicConn != nil {
+			_ = c.quicConn.CloseWithError(0, "")
+		}
+		if c.muxSession != nil {
+			_ = c.muxSession.Close()
+		}
+	})
+	return nil
+}

client/control.go

@@ -16,144 +16,142 @@ package client
 
 import (
 	"context"
-	"io"
 	"net"
-	"runtime/debug"
+	"sync/atomic"
 	"time"
 
-	"github.com/fatedier/golib/control/shutdown"
-	"github.com/fatedier/golib/crypto"
-	"github.com/samber/lo"
-
 	"github.com/fatedier/frp/client/proxy"
 	"github.com/fatedier/frp/client/visitor"
 	"github.com/fatedier/frp/pkg/auth"
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 	"github.com/fatedier/frp/pkg/msg"
 	"github.com/fatedier/frp/pkg/transport"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
+	"github.com/fatedier/frp/pkg/util/wait"
 	"github.com/fatedier/frp/pkg/util/xlog"
+	"github.com/fatedier/frp/pkg/vnet"
 )
 
+type SessionContext struct {
+	// The client common configuration.
+	Common *v1.ClientCommonConfig
+
+	// Unique ID obtained from frps.
+	// It should be attached to the login message when reconnecting.
+	RunID string
+	// Underlying control connection. Once conn is closed, the msgDispatcher and the entire Control will exit.
+	Conn net.Conn
+	// Indicates whether the connection is encrypted.
+	ConnEncrypted bool
+	// Sets authentication based on selected method
+	AuthSetter auth.Setter
+	// Connector is used to create new connections, which could be real TCP connections or virtual streams.
+	Connector Connector
+	// Virtual net controller
+	VnetController *vnet.Controller
+}
+
 type Control struct {
 	// service context
 	ctx context.Context
 	xl  *xlog.Logger
 
-	// Unique ID obtained from frps.
-	// It should be attached to the login message when reconnecting.
-	runID string
+	// session context
+	sessionCtx *SessionContext
 
 	// manage all proxies
-	pxyCfgs []v1.ProxyConfigurer
-	pm      *proxy.Manager
+	pm *proxy.Manager
 
 	// manage all visitors
 	vm *visitor.Manager
 
-	// control connection
-	conn net.Conn
+	doneCh chan struct{}
 
-	cm *ConnectionManager
-
-	// put a message in this channel to send it over control connection to server
-	sendCh chan (msg.Message)
-
-	// read from this channel to get the next message sent by server
-	readCh chan (msg.Message)
-
-	// goroutines can block by reading from this channel, it will be closed only in reader() when control connection is closed
-	closedCh chan struct{}
-
-	closedDoneCh chan struct{}
-
-	// last time got the Pong message
-	lastPong time.Time
-
-	// The client configuration
-	clientCfg *v1.ClientCommonConfig
-
-	readerShutdown     *shutdown.Shutdown
-	writerShutdown     *shutdown.Shutdown
-	msgHandlerShutdown *shutdown.Shutdown
-
-	// sets authentication based on selected method
-	authSetter auth.Setter
+	// of time.Time, last time got the Pong message
+	lastPong atomic.Value
 
+	// The role of msgTransporter is similar to HTTP2.
+	// It allows multiple messages to be sent simultaneously on the same control connection.
+	// The server's response messages will be dispatched to the corresponding waiting goroutines based on the laneKey and message type.
 	msgTransporter transport.MessageTransporter
+
+	// msgDispatcher is a wrapper for control connection.
+	// It provides a channel for sending messages, and you can register handlers to process messages based on their respective types.
+	msgDispatcher *msg.Dispatcher
 }
 
-func NewControl(
-	ctx context.Context, runID string, conn net.Conn, cm *ConnectionManager,
-	clientCfg *v1.ClientCommonConfig,
-	pxyCfgs []v1.ProxyConfigurer,
-	visitorCfgs []v1.VisitorConfigurer,
-	authSetter auth.Setter,
-) *Control {
+func NewControl(ctx context.Context, sessionCtx *SessionContext) (*Control, error) {
 	// new xlog instance
 	ctl := &Control{
-		ctx:                ctx,
-		xl:                 xlog.FromContextSafe(ctx),
-		runID:              runID,
-		conn:               conn,
-		cm:                 cm,
-		pxyCfgs:            pxyCfgs,
-		sendCh:             make(chan msg.Message, 100),
-		readCh:             make(chan msg.Message, 100),
-		closedCh:           make(chan struct{}),
-		closedDoneCh:       make(chan struct{}),
-		clientCfg:          clientCfg,
-		readerShutdown:     shutdown.New(),
-		writerShutdown:     shutdown.New(),
-		msgHandlerShutdown: shutdown.New(),
-		authSetter:         authSetter,
+		ctx:        ctx,
+		xl:         xlog.FromContextSafe(ctx),
+		sessionCtx: sessionCtx,
+		doneCh:     make(chan struct{}),
 	}
-	ctl.msgTransporter = transport.NewMessageTransporter(ctl.sendCh)
-	ctl.pm = proxy.NewManager(ctl.ctx, clientCfg, ctl.msgTransporter)
+	ctl.lastPong.Store(time.Now())
 
-	ctl.vm = visitor.NewManager(ctl.ctx, ctl.runID, ctl.clientCfg, ctl.connectServer, ctl.msgTransporter)
-	ctl.vm.Reload(visitorCfgs)
-	return ctl
+	if sessionCtx.ConnEncrypted {
+		cryptoRW, err := netpkg.NewCryptoReadWriter(sessionCtx.Conn, []byte(sessionCtx.Common.Auth.Token))
+		if err != nil {
+			return nil, err
+		}
+		ctl.msgDispatcher = msg.NewDispatcher(cryptoRW)
+	} else {
+		ctl.msgDispatcher = msg.NewDispatcher(sessionCtx.Conn)
+	}
+	ctl.registerMsgHandlers()
+	ctl.msgTransporter = transport.NewMessageTransporter(ctl.msgDispatcher.SendChannel())
+
+	ctl.pm = proxy.NewManager(ctl.ctx, sessionCtx.Common, ctl.msgTransporter, sessionCtx.VnetController)
+	ctl.vm = visitor.NewManager(ctl.ctx, sessionCtx.RunID, sessionCtx.Common,
+		ctl.connectServer, ctl.msgTransporter, sessionCtx.VnetController)
+	return ctl, nil
 }
 
-func (ctl *Control) Run() {
+func (ctl *Control) Run(proxyCfgs []v1.ProxyConfigurer, visitorCfgs []v1.VisitorConfigurer) {
 	go ctl.worker()
 
 	// start all proxies
-	ctl.pm.Reload(ctl.pxyCfgs)
+	ctl.pm.UpdateAll(proxyCfgs)
 
 	// start all visitors
-	go ctl.vm.Run()
+	ctl.vm.UpdateAll(visitorCfgs)
 }
 
-func (ctl *Control) HandleReqWorkConn(_ *msg.ReqWorkConn) {
+func (ctl *Control) SetInWorkConnCallback(cb func(*v1.ProxyBaseConfig, net.Conn, *msg.StartWorkConn) bool) {
+	ctl.pm.SetInWorkConnCallback(cb)
+}
+
+func (ctl *Control) handleReqWorkConn(_ msg.Message) {
 	xl := ctl.xl
 	workConn, err := ctl.connectServer()
 	if err != nil {
-		xl.Warn("start new connection to server error: %v", err)
+		xl.Warnf("start new connection to server error: %v", err)
 		return
 	}
 
 	m := &msg.NewWorkConn{
-		RunID: ctl.runID,
+		RunID: ctl.sessionCtx.RunID,
 	}
-	if err = ctl.authSetter.SetNewWorkConn(m); err != nil {
-		xl.Warn("error during NewWorkConn authentication: %v", err)
+	if err = ctl.sessionCtx.AuthSetter.SetNewWorkConn(m); err != nil {
+		xl.Warnf("error during NewWorkConn authentication: %v", err)
+		workConn.Close()
 		return
 	}
 	if err = msg.WriteMsg(workConn, m); err != nil {
-		xl.Warn("work connection write to server error: %v", err)
+		xl.Warnf("work connection write to server error: %v", err)
 		workConn.Close()
 		return
 	}
 
 	var startMsg msg.StartWorkConn
 	if err = msg.ReadMsgInto(workConn, &startMsg); err != nil {
-		xl.Trace("work connection closed before response StartWorkConn message: %v", err)
+		xl.Tracef("work connection closed before response StartWorkConn message: %v", err)
 		workConn.Close()
 		return
 	}
 	if startMsg.Error != "" {
-		xl.Error("StartWorkConn contains error: %s", startMsg.Error)
+		xl.Errorf("StartWorkConn contains error: %s", startMsg.Error)
 		workConn.Close()
 		return
 	}
@@ -162,28 +160,49 @@ func (ctl *Control) HandleReqWorkConn(_ *msg.ReqWorkConn) {
 	ctl.pm.HandleWorkConn(startMsg.ProxyName, workConn, &startMsg)
 }
 
-func (ctl *Control) HandleNewProxyResp(inMsg *msg.NewProxyResp) {
+func (ctl *Control) handleNewProxyResp(m msg.Message) {
 	xl := ctl.xl
+	inMsg := m.(*msg.NewProxyResp)
 	// Server will return NewProxyResp message to each NewProxy message.
 	// Start a new proxy handler if no error got
 	err := ctl.pm.StartProxy(inMsg.ProxyName, inMsg.RemoteAddr, inMsg.Error)
 	if err != nil {
-		xl.Warn("[%s] start error: %v", inMsg.ProxyName, err)
+		xl.Warnf("[%s] start error: %v", inMsg.ProxyName, err)
 	} else {
-		xl.Info("[%s] start proxy success", inMsg.ProxyName)
+		xl.Infof("[%s] start proxy success", inMsg.ProxyName)
 	}
 }
 
-func (ctl *Control) HandleNatHoleResp(inMsg *msg.NatHoleResp) {
+func (ctl *Control) handleNatHoleResp(m msg.Message) {
 	xl := ctl.xl
+	inMsg := m.(*msg.NatHoleResp)
 
 	// Dispatch the NatHoleResp message to the related proxy.
 	ok := ctl.msgTransporter.DispatchWithType(inMsg, msg.TypeNameNatHoleResp, inMsg.TransactionID)
 	if !ok {
-		xl.Trace("dispatch NatHoleResp message to related proxy error")
+		xl.Tracef("dispatch NatHoleResp message to related proxy error")
 	}
 }
 
+func (ctl *Control) handlePong(m msg.Message) {
+	xl := ctl.xl
+	inMsg := m.(*msg.Pong)
+
+	if inMsg.Error != "" {
+		xl.Errorf("pong message contains error: %s", inMsg.Error)
+		ctl.closeSession()
+		return
+	}
+	ctl.lastPong.Store(time.Now())
+	xl.Debugf("receive heartbeat from server")
+}
+
+// closeSession closes the control connection.
+func (ctl *Control) closeSession() {
+	ctl.sessionCtx.Conn.Close()
+	ctl.sessionCtx.Connector.Close()
+}
+
 func (ctl *Control) Close() error {
 	return ctl.GracefulClose(0)
 }
@@ -194,170 +213,82 @@ func (ctl *Control) GracefulClose(d time.Duration) error {
 
 	time.Sleep(d)
 
-	ctl.conn.Close()
-	ctl.cm.Close()
+	ctl.closeSession()
 	return nil
 }
 
-// ClosedDoneCh returns a channel that will be closed after all resources are released
-func (ctl *Control) ClosedDoneCh() <-chan struct{} {
-	return ctl.closedDoneCh
+// Done returns a channel that will be closed after all resources are released
+func (ctl *Control) Done() <-chan struct{} {
+	return ctl.doneCh
 }
 
 // connectServer return a new connection to frps
-func (ctl *Control) connectServer() (conn net.Conn, err error) {
-	return ctl.cm.Connect()
+func (ctl *Control) connectServer() (net.Conn, error) {
+	return ctl.sessionCtx.Connector.Connect()
 }
 
-// reader read all messages from frps and send to readCh
-func (ctl *Control) reader() {
-	xl := ctl.xl
-	defer func() {
-		if err := recover(); err != nil {
-			xl.Error("panic error: %v", err)
-			xl.Error(string(debug.Stack()))
-		}
-	}()
-	defer ctl.readerShutdown.Done()
-	defer close(ctl.closedCh)
-
-	encReader := crypto.NewReader(ctl.conn, []byte(ctl.clientCfg.Auth.Token))
-	for {
-		m, err := msg.ReadMsg(encReader)
-		if err != nil {
-			if err == io.EOF {
-				xl.Debug("read from control connection EOF")
-				return
-			}
-			xl.Warn("read error: %v", err)
-			ctl.conn.Close()
-			return
-		}
-		ctl.readCh <- m
-	}
+func (ctl *Control) registerMsgHandlers() {
+	ctl.msgDispatcher.RegisterHandler(&msg.ReqWorkConn{}, msg.AsyncHandler(ctl.handleReqWorkConn))
+	ctl.msgDispatcher.RegisterHandler(&msg.NewProxyResp{}, ctl.handleNewProxyResp)
+	ctl.msgDispatcher.RegisterHandler(&msg.NatHoleResp{}, ctl.handleNatHoleResp)
+	ctl.msgDispatcher.RegisterHandler(&msg.Pong{}, ctl.handlePong)
 }
 
-// writer writes messages got from sendCh to frps
-func (ctl *Control) writer() {
+// heartbeatWorker sends heartbeat to server and check heartbeat timeout.
+func (ctl *Control) heartbeatWorker() {
 	xl := ctl.xl
-	defer ctl.writerShutdown.Done()
-	encWriter, err := crypto.NewWriter(ctl.conn, []byte(ctl.clientCfg.Auth.Token))
-	if err != nil {
-		xl.Error("crypto new writer error: %v", err)
-		ctl.conn.Close()
-		return
-	}
-	for {
-		m, ok := <-ctl.sendCh
-		if !ok {
-			xl.Info("control writer is closing")
-			return
-		}
 
-		if err := msg.WriteMsg(encWriter, m); err != nil {
-			xl.Warn("write message to control connection error: %v", err)
-			return
-		}
-	}
-}
-
-// msgHandler handles all channel events and performs corresponding operations.
-func (ctl *Control) msgHandler() {
-	xl := ctl.xl
-	defer func() {
-		if err := recover(); err != nil {
-			xl.Error("panic error: %v", err)
-			xl.Error(string(debug.Stack()))
-		}
-	}()
-	defer ctl.msgHandlerShutdown.Done()
-
-	var hbSendCh <-chan time.Time
-	// TODO(fatedier): disable heartbeat if TCPMux is enabled.
-	// Just keep it here to keep compatible with old version frps.
-	if ctl.clientCfg.Transport.HeartbeatInterval > 0 {
-		hbSend := time.NewTicker(time.Duration(ctl.clientCfg.Transport.HeartbeatInterval) * time.Second)
-		defer hbSend.Stop()
-		hbSendCh = hbSend.C
-	}
-
-	var hbCheckCh <-chan time.Time
-	// Check heartbeat timeout only if TCPMux is not enabled and users don't disable heartbeat feature.
-	if ctl.clientCfg.Transport.HeartbeatInterval > 0 && ctl.clientCfg.Transport.HeartbeatTimeout > 0 &&
-		!lo.FromPtr(ctl.clientCfg.Transport.TCPMux) {
-		hbCheck := time.NewTicker(time.Second)
-		defer hbCheck.Stop()
-		hbCheckCh = hbCheck.C
-	}
-
-	ctl.lastPong = time.Now()
-	for {
-		select {
-		case <-hbSendCh:
-			// send heartbeat to server
-			xl.Debug("send heartbeat to server")
+	if ctl.sessionCtx.Common.Transport.HeartbeatInterval > 0 {
+		// Send heartbeat to server.
+		sendHeartBeat := func() (bool, error) {
+			xl.Debugf("send heartbeat to server")
 			pingMsg := &msg.Ping{}
-			if err := ctl.authSetter.SetPing(pingMsg); err != nil {
-				xl.Warn("error during ping authentication: %v", err)
-				return
-			}
-			ctl.sendCh <- pingMsg
-		case <-hbCheckCh:
-			if time.Since(ctl.lastPong) > time.Duration(ctl.clientCfg.Transport.HeartbeatTimeout)*time.Second {
-				xl.Warn("heartbeat timeout")
-				// let reader() stop
-				ctl.conn.Close()
-				return
-			}
-		case rawMsg, ok := <-ctl.readCh:
-			if !ok {
-				return
-			}
-
-			switch m := rawMsg.(type) {
-			case *msg.ReqWorkConn:
-				go ctl.HandleReqWorkConn(m)
-			case *msg.NewProxyResp:
-				ctl.HandleNewProxyResp(m)
-			case *msg.NatHoleResp:
-				ctl.HandleNatHoleResp(m)
-			case *msg.Pong:
-				if m.Error != "" {
-					xl.Error("Pong contains error: %s", m.Error)
-					ctl.conn.Close()
-					return
-				}
-				ctl.lastPong = time.Now()
-				xl.Debug("receive heartbeat from server")
+			if err := ctl.sessionCtx.AuthSetter.SetPing(pingMsg); err != nil {
+				xl.Warnf("error during ping authentication: %v, skip sending ping message", err)
+				return false, err
 			}
+			_ = ctl.msgDispatcher.Send(pingMsg)
+			return false, nil
 		}
+
+		go wait.BackoffUntil(sendHeartBeat,
+			wait.NewFastBackoffManager(wait.FastBackoffOptions{
+				Duration:           time.Duration(ctl.sessionCtx.Common.Transport.HeartbeatInterval) * time.Second,
+				InitDurationIfFail: time.Second,
+				Factor:             2.0,
+				Jitter:             0.1,
+				MaxDuration:        time.Duration(ctl.sessionCtx.Common.Transport.HeartbeatInterval) * time.Second,
+			}),
+			true, ctl.doneCh,
+		)
+	}
+
+	// Check heartbeat timeout.
+	if ctl.sessionCtx.Common.Transport.HeartbeatInterval > 0 && ctl.sessionCtx.Common.Transport.HeartbeatTimeout > 0 {
+		go wait.Until(func() {
+			if time.Since(ctl.lastPong.Load().(time.Time)) > time.Duration(ctl.sessionCtx.Common.Transport.HeartbeatTimeout)*time.Second {
+				xl.Warnf("heartbeat timeout")
+				ctl.closeSession()
+				return
+			}
+		}, time.Second, ctl.doneCh)
 	}
 }
 
-// If controler is notified by closedCh, reader and writer and handler will exit
 func (ctl *Control) worker() {
-	go ctl.msgHandler()
-	go ctl.reader()
-	go ctl.writer()
+	go ctl.heartbeatWorker()
+	go ctl.msgDispatcher.Run()
 
-	<-ctl.closedCh
-	// close related channels and wait until other goroutines done
-	close(ctl.readCh)
-	ctl.readerShutdown.WaitDone()
-	ctl.msgHandlerShutdown.WaitDone()
-
-	close(ctl.sendCh)
-	ctl.writerShutdown.WaitDone()
+	<-ctl.msgDispatcher.Done()
+	ctl.closeSession()
 
 	ctl.pm.Close()
 	ctl.vm.Close()
-
-	close(ctl.closedDoneCh)
-	ctl.cm.Close()
+	close(ctl.doneCh)
 }
 
-func (ctl *Control) ReloadConf(pxyCfgs []v1.ProxyConfigurer, visitorCfgs []v1.VisitorConfigurer) error {
-	ctl.vm.Reload(visitorCfgs)
-	ctl.pm.Reload(pxyCfgs)
+func (ctl *Control) UpdateAllConfigurer(proxyCfgs []v1.ProxyConfigurer, visitorCfgs []v1.VisitorConfigurer) error {
+	ctl.vm.UpdateAll(visitorCfgs)
+	ctl.pm.UpdateAll(proxyCfgs)
 	return nil
 }

client/event/event.go

@@ -8,7 +8,7 @@ import (
 
 var ErrPayloadType = errors.New("error payload type")
 
-type Handler func(payload interface{}) error
+type Handler func(payload any) error
 
 type StartProxyPayload struct {
 	NewProxyMsg *msg.NewProxy

client/health/health.go

@@ -40,8 +40,8 @@ type Monitor struct {
 	addr string
 
 	// For http
-	url string
-
+	url            string
+	header         http.Header
 	failedTimes    uint64
 	statusOK       bool
 	statusNormalFn func()
@@ -73,6 +73,11 @@ func NewMonitor(ctx context.Context, cfg v1.HealthCheckConfig, addr string,
 		}
 		url = s + cfg.Path
 	}
+	header := make(http.Header)
+	for _, h := range cfg.HTTPHeaders {
+		header.Set(h.Name, h.Value)
+	}
+
 	return &Monitor{
 		checkType:      cfg.Type,
 		interval:       time.Duration(cfg.IntervalSeconds) * time.Second,
@@ -80,6 +85,7 @@ func NewMonitor(ctx context.Context, cfg v1.HealthCheckConfig, addr string,
 		maxFailedTimes: cfg.MaxFailed,
 		addr:           addr,
 		url:            url,
+		header:         header,
 		statusOK:       false,
 		statusNormalFn: statusNormalFn,
 		statusFailedFn: statusFailedFn,
@@ -112,17 +118,17 @@ func (monitor *Monitor) checkWorker() {
 		}
 
 		if err == nil {
-			xl.Trace("do one health check success")
+			xl.Tracef("do one health check success")
 			if !monitor.statusOK && monitor.statusNormalFn != nil {
-				xl.Info("health check status change to success")
+				xl.Infof("health check status change to success")
 				monitor.statusOK = true
 				monitor.statusNormalFn()
 			}
 		} else {
-			xl.Warn("do one health check failed: %v", err)
+			xl.Warnf("do one health check failed: %v", err)
 			monitor.failedTimes++
 			if monitor.statusOK && int(monitor.failedTimes) >= monitor.maxFailedTimes && monitor.statusFailedFn != nil {
-				xl.Warn("health check status change to failed")
+				xl.Warnf("health check status change to failed")
 				monitor.statusOK = false
 				monitor.statusFailedFn()
 			}
@@ -163,6 +169,8 @@ func (monitor *Monitor) doHTTPCheck(ctx context.Context) error {
 	if err != nil {
 		return err
 	}
+	req.Header = monitor.header
+	req.Host = monitor.header.Get("Host")
 	resp, err := http.DefaultClient.Do(req)
 	if err != nil {
 		return err

client/proxy/proxy.go

@@ -25,7 +25,7 @@ import (
 	"time"
 
 	libio "github.com/fatedier/golib/io"
-	libdial "github.com/fatedier/golib/net/dial"
+	libnet "github.com/fatedier/golib/net"
 	pp "github.com/pires/go-proxyproto"
 	"golang.org/x/time/rate"
 
@@ -36,6 +36,7 @@ import (
 	"github.com/fatedier/frp/pkg/transport"
 	"github.com/fatedier/frp/pkg/util/limit"
 	"github.com/fatedier/frp/pkg/util/xlog"
+	"github.com/fatedier/frp/pkg/vnet"
 )
 
 var proxyFactoryRegistry = map[reflect.Type]func(*BaseProxy, v1.ProxyConfigurer) Proxy{}
@@ -47,10 +48,9 @@ func RegisterProxyFactory(proxyConfType reflect.Type, factory func(*BaseProxy, v
 // Proxy defines how to handle work connections for different proxy type.
 type Proxy interface {
 	Run() error
-
 	// InWorkConn accept work connections registered to server.
 	InWorkConn(net.Conn, *msg.StartWorkConn)
-
+	SetInWorkConnCallback(func(*v1.ProxyBaseConfig, net.Conn, *msg.StartWorkConn) /* continue */ bool)
 	Close()
 }
 
@@ -59,6 +59,7 @@ func NewProxy(
 	pxyConf v1.ProxyConfigurer,
 	clientCfg *v1.ClientCommonConfig,
 	msgTransporter transport.MessageTransporter,
+	vnetController *vnet.Controller,
 ) (pxy Proxy) {
 	var limiter *rate.Limiter
 	limitBytes := pxyConf.GetBaseConfig().Transport.BandwidthLimit.Bytes()
@@ -71,6 +72,7 @@ func NewProxy(
 		clientCfg:      clientCfg,
 		limiter:        limiter,
 		msgTransporter: msgTransporter,
+		vnetController: vnetController,
 		xl:             xlog.FromContextSafe(ctx),
 		ctx:            ctx,
 	}
@@ -86,10 +88,12 @@ type BaseProxy struct {
 	baseCfg        *v1.ProxyBaseConfig
 	clientCfg      *v1.ClientCommonConfig
 	msgTransporter transport.MessageTransporter
+	vnetController *vnet.Controller
 	limiter        *rate.Limiter
 	// proxyPlugin is used to handle connections instead of dialing to local service.
 	// It's only validate for TCP protocol now.
-	proxyPlugin plugin.Plugin
+	proxyPlugin        plugin.Plugin
+	inWorkConnCallback func(*v1.ProxyBaseConfig, net.Conn, *msg.StartWorkConn) /* continue */ bool
 
 	mu  sync.RWMutex
 	xl  *xlog.Logger
@@ -98,7 +102,10 @@ type BaseProxy struct {
 
 func (pxy *BaseProxy) Run() error {
 	if pxy.baseCfg.Plugin.Type != "" {
-		p, err := plugin.Create(pxy.baseCfg.Plugin.Type, pxy.baseCfg.Plugin.ClientPluginOptions)
+		p, err := plugin.Create(pxy.baseCfg.Plugin.Type, plugin.PluginContext{
+			Name:           pxy.baseCfg.Name,
+			VnetController: pxy.vnetController,
+		}, pxy.baseCfg.Plugin.ClientPluginOptions)
 		if err != nil {
 			return err
 		}
@@ -113,7 +120,16 @@ func (pxy *BaseProxy) Close() {
 	}
 }
 
+func (pxy *BaseProxy) SetInWorkConnCallback(cb func(*v1.ProxyBaseConfig, net.Conn, *msg.StartWorkConn) bool) {
+	pxy.inWorkConnCallback = cb
+}
+
 func (pxy *BaseProxy) InWorkConn(conn net.Conn, m *msg.StartWorkConn) {
+	if pxy.inWorkConnCallback != nil {
+		if !pxy.inWorkConnCallback(pxy.baseCfg, conn, m) {
+			return
+		}
+	}
 	pxy.HandleTCPWorkConnection(conn, m, []byte(pxy.clientCfg.Auth.Token))
 }
 
@@ -132,13 +148,13 @@ func (pxy *BaseProxy) HandleTCPWorkConnection(workConn net.Conn, m *msg.StartWor
 		})
 	}
 
-	xl.Trace("handle tcp work connection, use_encryption: %t, use_compression: %t",
+	xl.Tracef("handle tcp work connection, useEncryption: %t, useCompression: %t",
 		baseCfg.Transport.UseEncryption, baseCfg.Transport.UseCompression)
 	if baseCfg.Transport.UseEncryption {
 		remote, err = libio.WithEncryption(remote, encKey)
 		if err != nil {
 			workConn.Close()
-			xl.Error("create encryption stream error: %v", err)
+			xl.Errorf("create encryption stream error: %v", err)
 			return
 		}
 	}
@@ -148,69 +164,73 @@ func (pxy *BaseProxy) HandleTCPWorkConnection(workConn net.Conn, m *msg.StartWor
 	}
 
 	// check if we need to send proxy protocol info
-	var extraInfo plugin.ExtraInfo
-	if baseCfg.Transport.ProxyProtocolVersion != "" {
-		if m.SrcAddr != "" && m.SrcPort != 0 {
-			if m.DstAddr == "" {
-				m.DstAddr = "127.0.0.1"
-			}
-			srcAddr, _ := net.ResolveTCPAddr("tcp", net.JoinHostPort(m.SrcAddr, strconv.Itoa(int(m.SrcPort))))
-			dstAddr, _ := net.ResolveTCPAddr("tcp", net.JoinHostPort(m.DstAddr, strconv.Itoa(int(m.DstPort))))
-			h := &pp.Header{
-				Command:         pp.PROXY,
-				SourceAddr:      srcAddr,
-				DestinationAddr: dstAddr,
-			}
-
-			if strings.Contains(m.SrcAddr, ".") {
-				h.TransportProtocol = pp.TCPv4
-			} else {
-				h.TransportProtocol = pp.TCPv6
-			}
-
-			if baseCfg.Transport.ProxyProtocolVersion == "v1" {
-				h.Version = 1
-			} else if baseCfg.Transport.ProxyProtocolVersion == "v2" {
-				h.Version = 2
-			}
-
-			extraInfo.ProxyProtocolHeader = h
+	var connInfo plugin.ConnectionInfo
+	if m.SrcAddr != "" && m.SrcPort != 0 {
+		if m.DstAddr == "" {
+			m.DstAddr = "127.0.0.1"
 		}
+		srcAddr, _ := net.ResolveTCPAddr("tcp", net.JoinHostPort(m.SrcAddr, strconv.Itoa(int(m.SrcPort))))
+		dstAddr, _ := net.ResolveTCPAddr("tcp", net.JoinHostPort(m.DstAddr, strconv.Itoa(int(m.DstPort))))
+		connInfo.SrcAddr = srcAddr
+		connInfo.DstAddr = dstAddr
 	}
 
+	if baseCfg.Transport.ProxyProtocolVersion != "" && m.SrcAddr != "" && m.SrcPort != 0 {
+		h := &pp.Header{
+			Command:         pp.PROXY,
+			SourceAddr:      connInfo.SrcAddr,
+			DestinationAddr: connInfo.DstAddr,
+		}
+
+		if strings.Contains(m.SrcAddr, ".") {
+			h.TransportProtocol = pp.TCPv4
+		} else {
+			h.TransportProtocol = pp.TCPv6
+		}
+
+		if baseCfg.Transport.ProxyProtocolVersion == "v1" {
+			h.Version = 1
+		} else if baseCfg.Transport.ProxyProtocolVersion == "v2" {
+			h.Version = 2
+		}
+		connInfo.ProxyProtocolHeader = h
+	}
+	connInfo.Conn = remote
+	connInfo.UnderlyingConn = workConn
+
 	if pxy.proxyPlugin != nil {
 		// if plugin is set, let plugin handle connection first
-		xl.Debug("handle by plugin: %s", pxy.proxyPlugin.Name())
-		pxy.proxyPlugin.Handle(remote, workConn, &extraInfo)
-		xl.Debug("handle by plugin finished")
+		xl.Debugf("handle by plugin: %s", pxy.proxyPlugin.Name())
+		pxy.proxyPlugin.Handle(pxy.ctx, &connInfo)
+		xl.Debugf("handle by plugin finished")
 		return
 	}
 
-	localConn, err := libdial.Dial(
+	localConn, err := libnet.Dial(
 		net.JoinHostPort(baseCfg.LocalIP, strconv.Itoa(baseCfg.LocalPort)),
-		libdial.WithTimeout(10*time.Second),
+		libnet.WithTimeout(10*time.Second),
 	)
 	if err != nil {
 		workConn.Close()
-		xl.Error("connect to local service [%s:%d] error: %v", baseCfg.LocalIP, baseCfg.LocalPort, err)
+		xl.Errorf("connect to local service [%s:%d] error: %v", baseCfg.LocalIP, baseCfg.LocalPort, err)
 		return
 	}
 
-	xl.Debug("join connections, localConn(l[%s] r[%s]) workConn(l[%s] r[%s])", localConn.LocalAddr().String(),
+	xl.Debugf("join connections, localConn(l[%s] r[%s]) workConn(l[%s] r[%s])", localConn.LocalAddr().String(),
 		localConn.RemoteAddr().String(), workConn.LocalAddr().String(), workConn.RemoteAddr().String())
 
-	if extraInfo.ProxyProtocolHeader != nil {
-		if _, err := extraInfo.ProxyProtocolHeader.WriteTo(localConn); err != nil {
+	if connInfo.ProxyProtocolHeader != nil {
+		if _, err := connInfo.ProxyProtocolHeader.WriteTo(localConn); err != nil {
 			workConn.Close()
-			xl.Error("write proxy protocol header to local conn error: %v", err)
+			xl.Errorf("write proxy protocol header to local conn error: %v", err)
 			return
 		}
 	}
 
 	_, _, errs := libio.Join(localConn, remote)
-	xl.Debug("join connections closed")
+	xl.Debugf("join connections closed")
 	if len(errs) > 0 {
-		xl.Trace("join connections errors: %v", errs)
+		xl.Tracef("join connections errors: %v", errs)
 	}
 	if compressionResourceRecycleFn != nil {
 		compressionResourceRecycleFn()

client/proxy/proxy_manager.go

@@ -28,11 +28,14 @@ import (
 	"github.com/fatedier/frp/pkg/msg"
 	"github.com/fatedier/frp/pkg/transport"
 	"github.com/fatedier/frp/pkg/util/xlog"
+	"github.com/fatedier/frp/pkg/vnet"
 )
 
 type Manager struct {
-	proxies        map[string]*Wrapper
-	msgTransporter transport.MessageTransporter
+	proxies            map[string]*Wrapper
+	msgTransporter     transport.MessageTransporter
+	inWorkConnCallback func(*v1.ProxyBaseConfig, net.Conn, *msg.StartWorkConn) bool
+	vnetController     *vnet.Controller
 
 	closed bool
 	mu     sync.RWMutex
@@ -46,10 +49,12 @@ func NewManager(
 	ctx context.Context,
 	clientCfg *v1.ClientCommonConfig,
 	msgTransporter transport.MessageTransporter,
+	vnetController *vnet.Controller,
 ) *Manager {
 	return &Manager{
 		proxies:        make(map[string]*Wrapper),
 		msgTransporter: msgTransporter,
+		vnetController: vnetController,
 		closed:         false,
 		clientCfg:      clientCfg,
 		ctx:            ctx,
@@ -71,6 +76,10 @@ func (pm *Manager) StartProxy(name string, remoteAddr string, serverRespErr stri
 	return nil
 }
 
+func (pm *Manager) SetInWorkConnCallback(cb func(*v1.ProxyBaseConfig, net.Conn, *msg.StartWorkConn) bool) {
+	pm.inWorkConnCallback = cb
+}
+
 func (pm *Manager) Close() {
 	pm.mu.Lock()
 	defer pm.mu.Unlock()
@@ -91,7 +100,7 @@ func (pm *Manager) HandleWorkConn(name string, workConn net.Conn, m *msg.StartWo
 	}
 }
 
-func (pm *Manager) HandleEvent(payload interface{}) error {
+func (pm *Manager) HandleEvent(payload any) error {
 	var m msg.Message
 	switch e := payload.(type) {
 	case *event.StartProxyPayload:
@@ -115,9 +124,18 @@ func (pm *Manager) GetAllProxyStatus() []*WorkingStatus {
 	return ps
 }
 
-func (pm *Manager) Reload(pxyCfgs []v1.ProxyConfigurer) {
+func (pm *Manager) GetProxyStatus(name string) (*WorkingStatus, bool) {
+	pm.mu.RLock()
+	defer pm.mu.RUnlock()
+	if pxy, ok := pm.proxies[name]; ok {
+		return pxy.GetStatus(), true
+	}
+	return nil, false
+}
+
+func (pm *Manager) UpdateAll(proxyCfgs []v1.ProxyConfigurer) {
 	xl := xlog.FromContextSafe(pm.ctx)
-	pxyCfgsMap := lo.KeyBy(pxyCfgs, func(c v1.ProxyConfigurer) string {
+	proxyCfgsMap := lo.KeyBy(proxyCfgs, func(c v1.ProxyConfigurer) string {
 		return c.GetBaseConfig().Name
 	})
 	pm.mu.Lock()
@@ -126,7 +144,7 @@ func (pm *Manager) Reload(pxyCfgs []v1.ProxyConfigurer) {
 	delPxyNames := make([]string, 0)
 	for name, pxy := range pm.proxies {
 		del := false
-		cfg, ok := pxyCfgsMap[name]
+		cfg, ok := proxyCfgsMap[name]
 		if !ok || !reflect.DeepEqual(pxy.Cfg, cfg) {
 			del = true
 		}
@@ -138,14 +156,17 @@ func (pm *Manager) Reload(pxyCfgs []v1.ProxyConfigurer) {
 		}
 	}
 	if len(delPxyNames) > 0 {
-		xl.Info("proxy removed: %s", delPxyNames)
+		xl.Infof("proxy removed: %s", delPxyNames)
 	}
 
 	addPxyNames := make([]string, 0)
-	for _, cfg := range pxyCfgs {
+	for _, cfg := range proxyCfgs {
 		name := cfg.GetBaseConfig().Name
 		if _, ok := pm.proxies[name]; !ok {
-			pxy := NewWrapper(pm.ctx, cfg, pm.clientCfg, pm.HandleEvent, pm.msgTransporter)
+			pxy := NewWrapper(pm.ctx, cfg, pm.clientCfg, pm.HandleEvent, pm.msgTransporter, pm.vnetController)
+			if pm.inWorkConnCallback != nil {
+				pxy.SetInWorkConnCallback(pm.inWorkConnCallback)
+			}
 			pm.proxies[name] = pxy
 			addPxyNames = append(addPxyNames, name)
 
@@ -153,6 +174,6 @@ func (pm *Manager) Reload(pxyCfgs []v1.ProxyConfigurer) {
 		}
 	}
 	if len(addPxyNames) > 0 {
-		xl.Info("proxy added: %s", addPxyNames)
+		xl.Infof("proxy added: %s", addPxyNames)
 	}
 }

client/proxy/proxy_wrapper.go

@@ -31,6 +31,7 @@ import (
 	"github.com/fatedier/frp/pkg/msg"
 	"github.com/fatedier/frp/pkg/transport"
 	"github.com/fatedier/frp/pkg/util/xlog"
+	"github.com/fatedier/frp/pkg/vnet"
 )
 
 const (
@@ -73,6 +74,8 @@ type Wrapper struct {
 	handler event.Handler
 
 	msgTransporter transport.MessageTransporter
+	// vnet controller
+	vnetController *vnet.Controller
 
 	health           uint32
 	lastSendStartMsg time.Time
@@ -91,6 +94,7 @@ func NewWrapper(
 	clientCfg *v1.ClientCommonConfig,
 	eventHandler event.Handler,
 	msgTransporter transport.MessageTransporter,
+	vnetController *vnet.Controller,
 ) *Wrapper {
 	baseInfo := cfg.GetBaseConfig()
 	xl := xlog.FromContextSafe(ctx).Spawn().AppendPrefix(baseInfo.Name)
@@ -105,6 +109,7 @@ func NewWrapper(
 		healthNotifyCh: make(chan struct{}),
 		handler:        eventHandler,
 		msgTransporter: msgTransporter,
+		vnetController: vnetController,
 		xl:             xl,
 		ctx:            xlog.NewContext(ctx, xl),
 	}
@@ -114,13 +119,17 @@ func NewWrapper(
 		addr := net.JoinHostPort(baseInfo.LocalIP, strconv.Itoa(baseInfo.LocalPort))
 		pw.monitor = health.NewMonitor(pw.ctx, baseInfo.HealthCheck, addr,
 			pw.statusNormalCallback, pw.statusFailedCallback)
-		xl.Trace("enable health check monitor")
+		xl.Tracef("enable health check monitor")
 	}
 
-	pw.pxy = NewProxy(pw.ctx, pw.Cfg, clientCfg, pw.msgTransporter)
+	pw.pxy = NewProxy(pw.ctx, pw.Cfg, clientCfg, pw.msgTransporter, pw.vnetController)
 	return pw
 }
 
+func (pw *Wrapper) SetInWorkConnCallback(cb func(*v1.ProxyBaseConfig, net.Conn, *msg.StartWorkConn) bool) {
+	pw.pxy.SetInWorkConnCallback(cb)
+}
+
 func (pw *Wrapper) SetRunningStatus(remoteAddr string, respErr string) error {
 	pw.mu.Lock()
 	defer pw.mu.Unlock()
@@ -133,7 +142,7 @@ func (pw *Wrapper) SetRunningStatus(remoteAddr string, respErr string) error {
 		pw.Phase = ProxyPhaseStartErr
 		pw.Err = respErr
 		pw.lastStartErr = time.Now()
-		return fmt.Errorf(pw.Err)
+		return fmt.Errorf("%s", pw.Err)
 	}
 
 	if err := pw.pxy.Run(); err != nil {
@@ -193,7 +202,7 @@ func (pw *Wrapper) checkWorker() {
 				(pw.Phase == ProxyPhaseWaitStart && now.After(pw.lastSendStartMsg.Add(waitResponseTimeout))) ||
 				(pw.Phase == ProxyPhaseStartErr && now.After(pw.lastStartErr.Add(startErrTimeout))) {
 
-				xl.Trace("change status from [%s] to [%s]", pw.Phase, ProxyPhaseWaitStart)
+				xl.Tracef("change status from [%s] to [%s]", pw.Phase, ProxyPhaseWaitStart)
 				pw.Phase = ProxyPhaseWaitStart
 
 				var newProxyMsg msg.NewProxy
@@ -208,7 +217,7 @@ func (pw *Wrapper) checkWorker() {
 			pw.mu.Lock()
 			if pw.Phase == ProxyPhaseRunning || pw.Phase == ProxyPhaseWaitStart {
 				pw.close()
-				xl.Trace("change status from [%s] to [%s]", pw.Phase, ProxyPhaseCheckFailed)
+				xl.Tracef("change status from [%s] to [%s]", pw.Phase, ProxyPhaseCheckFailed)
 				pw.Phase = ProxyPhaseCheckFailed
 			}
 			pw.mu.Unlock()
@@ -232,7 +241,7 @@ func (pw *Wrapper) statusNormalCallback() {
 		default:
 		}
 	})
-	xl.Info("health check success")
+	xl.Infof("health check success")
 }
 
 func (pw *Wrapper) statusFailedCallback() {
@@ -244,7 +253,7 @@ func (pw *Wrapper) statusFailedCallback() {
 		default:
 		}
 	})
-	xl.Info("health check failed")
+	xl.Infof("health check failed")
 }
 
 func (pw *Wrapper) InWorkConn(workConn net.Conn, m *msg.StartWorkConn) {
@@ -253,7 +262,7 @@ func (pw *Wrapper) InWorkConn(workConn net.Conn, m *msg.StartWorkConn) {
 	pxy := pw.pxy
 	pw.mu.RUnlock()
 	if pxy != nil && pw.Phase == ProxyPhaseRunning {
-		xl.Debug("start a new work connection, localAddr: %s remoteAddr: %s", workConn.LocalAddr().String(), workConn.RemoteAddr().String())
+		xl.Debugf("start a new work connection, localAddr: %s remoteAddr: %s", workConn.LocalAddr().String(), workConn.RemoteAddr().String())
 		go pxy.InWorkConn(workConn, m)
 	} else {
 		workConn.Close()

client/proxy/sudp.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !frps
+
 package proxy
 
 import (
@@ -29,7 +31,7 @@ import (
 	"github.com/fatedier/frp/pkg/msg"
 	"github.com/fatedier/frp/pkg/proto/udp"
 	"github.com/fatedier/frp/pkg/util/limit"
-	utilnet "github.com/fatedier/frp/pkg/util/net"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
 )
 
 func init() {
@@ -79,7 +81,7 @@ func (pxy *SUDPProxy) Close() {
 
 func (pxy *SUDPProxy) InWorkConn(conn net.Conn, _ *msg.StartWorkConn) {
 	xl := pxy.xl
-	xl.Info("incoming a new work connection for sudp proxy, %s", conn.RemoteAddr().String())
+	xl.Infof("incoming a new work connection for sudp proxy, %s", conn.RemoteAddr().String())
 
 	var rwc io.ReadWriteCloser = conn
 	var err error
@@ -92,14 +94,14 @@ func (pxy *SUDPProxy) InWorkConn(conn net.Conn, _ *msg.StartWorkConn) {
 		rwc, err = libio.WithEncryption(rwc, []byte(pxy.clientCfg.Auth.Token))
 		if err != nil {
 			conn.Close()
-			xl.Error("create encryption stream error: %v", err)
+			xl.Errorf("create encryption stream error: %v", err)
 			return
 		}
 	}
 	if pxy.cfg.Transport.UseCompression {
 		rwc = libio.WithCompression(rwc)
 	}
-	conn = utilnet.WrapReadWriteCloserToConn(rwc, conn)
+	conn = netpkg.WrapReadWriteCloserToConn(rwc, conn)
 
 	workConn := conn
 	readCh := make(chan *msg.UDPPacket, 1024)
@@ -131,21 +133,21 @@ func (pxy *SUDPProxy) InWorkConn(conn net.Conn, _ *msg.StartWorkConn) {
 			// first to check sudp proxy is closed or not
 			select {
 			case <-pxy.closeCh:
-				xl.Trace("frpc sudp proxy is closed")
+				xl.Tracef("frpc sudp proxy is closed")
 				return
 			default:
 			}
 
 			var udpMsg msg.UDPPacket
 			if errRet := msg.ReadMsgInto(conn, &udpMsg); errRet != nil {
-				xl.Warn("read from workConn for sudp error: %v", errRet)
+				xl.Warnf("read from workConn for sudp error: %v", errRet)
 				return
 			}
 
 			if errRet := errors.PanicToError(func() {
 				readCh <- &udpMsg
 			}); errRet != nil {
-				xl.Warn("reader goroutine for sudp work connection closed: %v", errRet)
+				xl.Warnf("reader goroutine for sudp work connection closed: %v", errRet)
 				return
 			}
 		}
@@ -155,21 +157,21 @@ func (pxy *SUDPProxy) InWorkConn(conn net.Conn, _ *msg.StartWorkConn) {
 	workConnSenderFn := func(conn net.Conn, sendCh chan msg.Message) {
 		defer func() {
 			closeFn()
-			xl.Info("writer goroutine for sudp work connection closed")
+			xl.Infof("writer goroutine for sudp work connection closed")
 		}()
 
 		var errRet error
 		for rawMsg := range sendCh {
 			switch m := rawMsg.(type) {
 			case *msg.UDPPacket:
-				xl.Trace("frpc send udp package to frpc visitor, [udp local: %v, remote: %v], [tcp work conn local: %v, remote: %v]",
+				xl.Tracef("frpc send udp package to frpc visitor, [udp local: %v, remote: %v], [tcp work conn local: %v, remote: %v]",
 					m.LocalAddr.String(), m.RemoteAddr.String(), conn.LocalAddr().String(), conn.RemoteAddr().String())
 			case *msg.Ping:
-				xl.Trace("frpc send ping message to frpc visitor")
+				xl.Tracef("frpc send ping message to frpc visitor")
 			}
 
 			if errRet = msg.WriteMsg(conn, rawMsg); errRet != nil {
-				xl.Error("sudp work write error: %v", errRet)
+				xl.Errorf("sudp work write error: %v", errRet)
 				return
 			}
 		}
@@ -189,11 +191,11 @@ func (pxy *SUDPProxy) InWorkConn(conn net.Conn, _ *msg.StartWorkConn) {
 				if errRet = errors.PanicToError(func() {
 					sendCh <- &msg.Ping{}
 				}); errRet != nil {
-					xl.Warn("heartbeat goroutine for sudp work connection closed")
+					xl.Warnf("heartbeat goroutine for sudp work connection closed")
 					return
 				}
 			case <-pxy.closeCh:
-				xl.Trace("frpc sudp proxy is closed")
+				xl.Tracef("frpc sudp proxy is closed")
 				return
 			}
 		}

client/proxy/udp.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !frps
+
 package proxy
 
 import (
@@ -28,7 +30,7 @@ import (
 	"github.com/fatedier/frp/pkg/msg"
 	"github.com/fatedier/frp/pkg/proto/udp"
 	"github.com/fatedier/frp/pkg/util/limit"
-	utilnet "github.com/fatedier/frp/pkg/util/net"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
 )
 
 func init() {
@@ -88,8 +90,8 @@ func (pxy *UDPProxy) Close() {
 
 func (pxy *UDPProxy) InWorkConn(conn net.Conn, _ *msg.StartWorkConn) {
 	xl := pxy.xl
-	xl.Info("incoming a new work connection for udp proxy, %s", conn.RemoteAddr().String())
-	// close resources releated with old workConn
+	xl.Infof("incoming a new work connection for udp proxy, %s", conn.RemoteAddr().String())
+	// close resources related with old workConn
 	pxy.Close()
 
 	var rwc io.ReadWriteCloser = conn
@@ -103,14 +105,14 @@ func (pxy *UDPProxy) InWorkConn(conn net.Conn, _ *msg.StartWorkConn) {
 		rwc, err = libio.WithEncryption(rwc, []byte(pxy.clientCfg.Auth.Token))
 		if err != nil {
 			conn.Close()
-			xl.Error("create encryption stream error: %v", err)
+			xl.Errorf("create encryption stream error: %v", err)
 			return
 		}
 	}
 	if pxy.cfg.Transport.UseCompression {
 		rwc = libio.WithCompression(rwc)
 	}
-	conn = utilnet.WrapReadWriteCloserToConn(rwc, conn)
+	conn = netpkg.WrapReadWriteCloserToConn(rwc, conn)
 
 	pxy.mu.Lock()
 	pxy.workConn = conn
@@ -123,32 +125,32 @@ func (pxy *UDPProxy) InWorkConn(conn net.Conn, _ *msg.StartWorkConn) {
 		for {
 			var udpMsg msg.UDPPacket
 			if errRet := msg.ReadMsgInto(conn, &udpMsg); errRet != nil {
-				xl.Warn("read from workConn for udp error: %v", errRet)
+				xl.Warnf("read from workConn for udp error: %v", errRet)
 				return
 			}
 			if errRet := errors.PanicToError(func() {
-				xl.Trace("get udp package from workConn: %s", udpMsg.Content)
+				xl.Tracef("get udp package from workConn: %s", udpMsg.Content)
 				readCh <- &udpMsg
 			}); errRet != nil {
-				xl.Info("reader goroutine for udp work connection closed: %v", errRet)
+				xl.Infof("reader goroutine for udp work connection closed: %v", errRet)
 				return
 			}
 		}
 	}
 	workConnSenderFn := func(conn net.Conn, sendCh chan msg.Message) {
 		defer func() {
-			xl.Info("writer goroutine for udp work connection closed")
+			xl.Infof("writer goroutine for udp work connection closed")
 		}()
 		var errRet error
 		for rawMsg := range sendCh {
 			switch m := rawMsg.(type) {
 			case *msg.UDPPacket:
-				xl.Trace("send udp package to workConn: %s", m.Content)
+				xl.Tracef("send udp package to workConn: %s", m.Content)
 			case *msg.Ping:
-				xl.Trace("send ping message to udp workConn")
+				xl.Tracef("send ping message to udp workConn")
 			}
 			if errRet = msg.WriteMsg(conn, rawMsg); errRet != nil {
-				xl.Error("udp work write error: %v", errRet)
+				xl.Errorf("udp work write error: %v", errRet)
 				return
 			}
 		}
@@ -160,7 +162,7 @@ func (pxy *UDPProxy) InWorkConn(conn net.Conn, _ *msg.StartWorkConn) {
 			if errRet = errors.PanicToError(func() {
 				sendCh <- &msg.Ping{}
 			}); errRet != nil {
-				xl.Trace("heartbeat goroutine for udp work connection closed")
+				xl.Tracef("heartbeat goroutine for udp work connection closed")
 				break
 			}
 		}

client/proxy/xtcp.go

@@ -12,6 +12,8 @@
 // See the License for the specific language governing permissions and
 // limitations under the License.
 
+//go:build !frps
+
 package proxy
 
 import (
@@ -27,7 +29,7 @@ import (
 	"github.com/fatedier/frp/pkg/msg"
 	"github.com/fatedier/frp/pkg/nathole"
 	"github.com/fatedier/frp/pkg/transport"
-	utilnet "github.com/fatedier/frp/pkg/util/net"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
 )
 
 func init() {
@@ -57,17 +59,17 @@ func (pxy *XTCPProxy) InWorkConn(conn net.Conn, startWorkConnMsg *msg.StartWorkC
 	var natHoleSidMsg msg.NatHoleSid
 	err := msg.ReadMsgInto(conn, &natHoleSidMsg)
 	if err != nil {
-		xl.Error("xtcp read from workConn error: %v", err)
+		xl.Errorf("xtcp read from workConn error: %v", err)
 		return
 	}
 
-	xl.Trace("nathole prepare start")
+	xl.Tracef("nathole prepare start")
 	prepareResult, err := nathole.Prepare([]string{pxy.clientCfg.NatHoleSTUNServer})
 	if err != nil {
-		xl.Warn("nathole prepare error: %v", err)
+		xl.Warnf("nathole prepare error: %v", err)
 		return
 	}
-	xl.Info("nathole prepare success, nat type: %s, behavior: %s, addresses: %v, assistedAddresses: %v",
+	xl.Infof("nathole prepare success, nat type: %s, behavior: %s, addresses: %v, assistedAddresses: %v",
 		prepareResult.NatType, prepareResult.Behavior, prepareResult.Addrs, prepareResult.AssistedAddrs)
 	defer prepareResult.ListenConn.Close()
 
@@ -81,14 +83,14 @@ func (pxy *XTCPProxy) InWorkConn(conn net.Conn, startWorkConnMsg *msg.StartWorkC
 		AssistedAddrs: prepareResult.AssistedAddrs,
 	}
 
-	xl.Trace("nathole exchange info start")
+	xl.Tracef("nathole exchange info start")
 	natHoleRespMsg, err := nathole.ExchangeInfo(pxy.ctx, pxy.msgTransporter, transactionID, natHoleClientMsg, 5*time.Second)
 	if err != nil {
-		xl.Warn("nathole exchange info error: %v", err)
+		xl.Warnf("nathole exchange info error: %v", err)
 		return
 	}
 
-	xl.Info("get natHoleRespMsg, sid [%s], protocol [%s], candidate address %v, assisted address %v, detectBehavior: %+v",
+	xl.Infof("get natHoleRespMsg, sid [%s], protocol [%s], candidate address %v, assisted address %v, detectBehavior: %+v",
 		natHoleRespMsg.Sid, natHoleRespMsg.Protocol, natHoleRespMsg.CandidateAddrs,
 		natHoleRespMsg.AssistedAddrs, natHoleRespMsg.DetectBehavior)
 
@@ -96,7 +98,7 @@ func (pxy *XTCPProxy) InWorkConn(conn net.Conn, startWorkConnMsg *msg.StartWorkC
 	newListenConn, raddr, err := nathole.MakeHole(pxy.ctx, listenConn, natHoleRespMsg, []byte(pxy.cfg.Secretkey))
 	if err != nil {
 		listenConn.Close()
-		xl.Warn("make hole error: %v", err)
+		xl.Warnf("make hole error: %v", err)
 		_ = pxy.msgTransporter.Send(&msg.NatHoleReport{
 			Sid:     natHoleRespMsg.Sid,
 			Success: false,
@@ -104,7 +106,7 @@ func (pxy *XTCPProxy) InWorkConn(conn net.Conn, startWorkConnMsg *msg.StartWorkC
 		return
 	}
 	listenConn = newListenConn
-	xl.Info("establishing nat hole connection successful, sid [%s], remoteAddr [%s]", natHoleRespMsg.Sid, raddr)
+	xl.Infof("establishing nat hole connection successful, sid [%s], remoteAddr [%s]", natHoleRespMsg.Sid, raddr)
 
 	_ = pxy.msgTransporter.Send(&msg.NatHoleReport{
 		Sid:     natHoleRespMsg.Sid,
@@ -126,14 +128,14 @@ func (pxy *XTCPProxy) listenByKCP(listenConn *net.UDPConn, raddr *net.UDPAddr, s
 	laddr, _ := net.ResolveUDPAddr("udp", listenConn.LocalAddr().String())
 	lConn, err := net.DialUDP("udp", laddr, raddr)
 	if err != nil {
-		xl.Warn("dial udp error: %v", err)
+		xl.Warnf("dial udp error: %v", err)
 		return
 	}
 	defer lConn.Close()
 
-	remote, err := utilnet.NewKCPConnFromUDP(lConn, true, raddr.String())
+	remote, err := netpkg.NewKCPConnFromUDP(lConn, true, raddr.String())
 	if err != nil {
-		xl.Warn("create kcp connection from udp connection error: %v", err)
+		xl.Warnf("create kcp connection from udp connection error: %v", err)
 		return
 	}
 
@@ -143,7 +145,7 @@ func (pxy *XTCPProxy) listenByKCP(listenConn *net.UDPConn, raddr *net.UDPAddr, s
 	fmuxCfg.LogOutput = io.Discard
 	session, err := fmux.Server(remote, fmuxCfg)
 	if err != nil {
-		xl.Error("create mux session error: %v", err)
+		xl.Errorf("create mux session error: %v", err)
 		return
 	}
 	defer session.Close()
@@ -151,7 +153,7 @@ func (pxy *XTCPProxy) listenByKCP(listenConn *net.UDPConn, raddr *net.UDPAddr, s
 	for {
 		muxConn, err := session.Accept()
 		if err != nil {
-			xl.Error("accept connection error: %v", err)
+			xl.Errorf("accept connection error: %v", err)
 			return
 		}
 		go pxy.HandleTCPWorkConnection(muxConn, startWorkConnMsg, []byte(pxy.cfg.Secretkey))
@@ -164,7 +166,7 @@ func (pxy *XTCPProxy) listenByQUIC(listenConn *net.UDPConn, _ *net.UDPAddr, star
 
 	tlsConfig, err := transport.NewServerTLSConfig("", "", "")
 	if err != nil {
-		xl.Warn("create tls config error: %v", err)
+		xl.Warnf("create tls config error: %v", err)
 		return
 	}
 	tlsConfig.NextProtos = []string{"frp"}
@@ -176,22 +178,22 @@ func (pxy *XTCPProxy) listenByQUIC(listenConn *net.UDPConn, _ *net.UDPAddr, star
 		},
 	)
 	if err != nil {
-		xl.Warn("dial quic error: %v", err)
+		xl.Warnf("dial quic error: %v", err)
 		return
 	}
 	// only accept one connection from raddr
 	c, err := quicListener.Accept(pxy.ctx)
 	if err != nil {
-		xl.Error("quic accept connection error: %v", err)
+		xl.Errorf("quic accept connection error: %v", err)
 		return
 	}
 	for {
 		stream, err := c.AcceptStream(pxy.ctx)
 		if err != nil {
-			xl.Debug("quic accept stream error: %v", err)
+			xl.Debugf("quic accept stream error: %v", err)
 			_ = c.CloseWithError(0, "")
 			return
 		}
-		go pxy.HandleTCPWorkConnection(utilnet.QuicStreamToNetConn(stream, c), startWorkConnMsg, []byte(pxy.cfg.Secretkey))
+		go pxy.HandleTCPWorkConnection(netpkg.QuicStreamToNetConn(stream, c), startWorkConnMsg, []byte(pxy.cfg.Secretkey))
 	}
 }

client/service.go

@@ -16,245 +16,250 @@ package client
 
 import (
 	"context"
-	"crypto/tls"
+	"errors"
 	"fmt"
-	"io"
 	"net"
+	"os"
 	"runtime"
-	"strconv"
-	"strings"
 	"sync"
-	"sync/atomic"
 	"time"
 
 	"github.com/fatedier/golib/crypto"
-	libdial "github.com/fatedier/golib/net/dial"
-	fmux "github.com/hashicorp/yamux"
-	quic "github.com/quic-go/quic-go"
 	"github.com/samber/lo"
 
-	"github.com/fatedier/frp/assets"
+	"github.com/fatedier/frp/client/proxy"
 	"github.com/fatedier/frp/pkg/auth"
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 	"github.com/fatedier/frp/pkg/msg"
-	"github.com/fatedier/frp/pkg/transport"
+	httppkg "github.com/fatedier/frp/pkg/util/http"
 	"github.com/fatedier/frp/pkg/util/log"
-	utilnet "github.com/fatedier/frp/pkg/util/net"
-	"github.com/fatedier/frp/pkg/util/util"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
 	"github.com/fatedier/frp/pkg/util/version"
+	"github.com/fatedier/frp/pkg/util/wait"
 	"github.com/fatedier/frp/pkg/util/xlog"
+	"github.com/fatedier/frp/pkg/vnet"
 )
 
 func init() {
 	crypto.DefaultSalt = "frp"
+	// Disable quic-go's receive buffer warning.
+	os.Setenv("QUIC_GO_DISABLE_RECEIVE_BUFFER_WARNING", "true")
+	// Disable quic-go's ECN support by default. It may cause issues on certain operating systems.
+	if os.Getenv("QUIC_GO_DISABLE_ECN") == "" {
+		os.Setenv("QUIC_GO_DISABLE_ECN", "true")
+	}
 }
 
-// Service is a client service.
-type Service struct {
-	// uniq id got from frps, attach it in loginMsg
-	runID string
+type cancelErr struct {
+	Err error
+}
 
-	// manager control connection with server
-	ctl   *Control
+func (e cancelErr) Error() string {
+	return e.Err.Error()
+}
+
+// ServiceOptions contains options for creating a new client service.
+type ServiceOptions struct {
+	Common      *v1.ClientCommonConfig
+	ProxyCfgs   []v1.ProxyConfigurer
+	VisitorCfgs []v1.VisitorConfigurer
+
+	// ConfigFilePath is the path to the configuration file used to initialize.
+	// If it is empty, it means that the configuration file is not used for initialization.
+	// It may be initialized using command line parameters or called directly.
+	ConfigFilePath string
+
+	// ClientSpec is the client specification that control the client behavior.
+	ClientSpec *msg.ClientSpec
+
+	// ConnectorCreator is a function that creates a new connector to make connections to the server.
+	// The Connector shields the underlying connection details, whether it is through TCP or QUIC connection,
+	// and regardless of whether multiplexing is used.
+	//
+	// If it is not set, the default frpc connector will be used.
+	// By using a custom Connector, it can be used to implement a VirtualClient, which connects to frps
+	// through a pipe instead of a real physical connection.
+	ConnectorCreator func(context.Context, *v1.ClientCommonConfig) Connector
+
+	// HandleWorkConnCb is a callback function that is called when a new work connection is created.
+	//
+	// If it is not set, the default frpc implementation will be used.
+	HandleWorkConnCb func(*v1.ProxyBaseConfig, net.Conn, *msg.StartWorkConn) bool
+}
+
+// setServiceOptionsDefault sets the default values for ServiceOptions.
+func setServiceOptionsDefault(options *ServiceOptions) {
+	if options.Common != nil {
+		options.Common.Complete()
+	}
+	if options.ConnectorCreator == nil {
+		options.ConnectorCreator = NewConnector
+	}
+}
+
+// Service is the client service that connects to frps and provides proxy services.
+type Service struct {
 	ctlMu sync.RWMutex
+	// manager control connection with server
+	ctl *Control
+	// Uniq id got from frps, it will be attached to loginMsg.
+	runID string
 
 	// Sets authentication based on selected method
 	authSetter auth.Setter
 
-	cfg         *v1.ClientCommonConfig
-	pxyCfgs     []v1.ProxyConfigurer
-	visitorCfgs []v1.VisitorConfigurer
+	// web server for admin UI and apis
+	webServer *httppkg.Server
+
+	vnetController *vnet.Controller
+
 	cfgMu       sync.RWMutex
+	common      *v1.ClientCommonConfig
+	proxyCfgs   []v1.ProxyConfigurer
+	visitorCfgs []v1.VisitorConfigurer
+	clientSpec  *msg.ClientSpec
 
 	// The configuration file used to initialize this client, or an empty
 	// string if no configuration file was used.
-	cfgFile string
-
-	exit uint32 // 0 means not exit
+	configFilePath string
 
 	// service context
 	ctx context.Context
 	// call cancel to stop service
-	cancel context.CancelFunc
+	cancel                   context.CancelCauseFunc
+	gracefulShutdownDuration time.Duration
+
+	connectorCreator func(context.Context, *v1.ClientCommonConfig) Connector
+	handleWorkConnCb func(*v1.ProxyBaseConfig, net.Conn, *msg.StartWorkConn) bool
 }
 
-func NewService(
-	cfg *v1.ClientCommonConfig,
-	pxyCfgs []v1.ProxyConfigurer,
-	visitorCfgs []v1.VisitorConfigurer,
-	cfgFile string,
-) (svr *Service, err error) {
-	svr = &Service{
-		authSetter:  auth.NewAuthSetter(cfg.Auth),
-		cfg:         cfg,
-		cfgFile:     cfgFile,
-		pxyCfgs:     pxyCfgs,
-		visitorCfgs: visitorCfgs,
-		ctx:         context.Background(),
-		exit:        0,
+func NewService(options ServiceOptions) (*Service, error) {
+	setServiceOptionsDefault(&options)
+
+	var webServer *httppkg.Server
+	if options.Common.WebServer.Port > 0 {
+		ws, err := httppkg.NewServer(options.Common.WebServer)
+		if err != nil {
+			return nil, err
+		}
+		webServer = ws
 	}
-	return
-}
-
-func (svr *Service) GetController() *Control {
-	svr.ctlMu.RLock()
-	defer svr.ctlMu.RUnlock()
-	return svr.ctl
+	s := &Service{
+		ctx:              context.Background(),
+		authSetter:       auth.NewAuthSetter(options.Common.Auth),
+		webServer:        webServer,
+		common:           options.Common,
+		configFilePath:   options.ConfigFilePath,
+		proxyCfgs:        options.ProxyCfgs,
+		visitorCfgs:      options.VisitorCfgs,
+		clientSpec:       options.ClientSpec,
+		connectorCreator: options.ConnectorCreator,
+		handleWorkConnCb: options.HandleWorkConnCb,
+	}
+	if webServer != nil {
+		webServer.RouteRegister(s.registerRouteHandlers)
+	}
+	if options.Common.VirtualNet.Address != "" {
+		s.vnetController = vnet.NewController(options.Common.VirtualNet)
+	}
+	return s, nil
 }
 
 func (svr *Service) Run(ctx context.Context) error {
-	ctx, cancel := context.WithCancel(ctx)
-	svr.ctx = xlog.NewContext(ctx, xlog.New())
+	ctx, cancel := context.WithCancelCause(ctx)
+	svr.ctx = xlog.NewContext(ctx, xlog.FromContextSafe(ctx))
 	svr.cancel = cancel
 
-	xl := xlog.FromContextSafe(svr.ctx)
-
 	// set custom DNSServer
-	if svr.cfg.DNSServer != "" {
-		dnsAddr := svr.cfg.DNSServer
-		if _, _, err := net.SplitHostPort(dnsAddr); err != nil {
-			dnsAddr = net.JoinHostPort(dnsAddr, "53")
-		}
-		// Change default dns server for frpc
-		net.DefaultResolver = &net.Resolver{
-			PreferGo: true,
-			Dial: func(ctx context.Context, network, address string) (net.Conn, error) {
-				return net.Dial("udp", dnsAddr)
-			},
-		}
+	if svr.common.DNSServer != "" {
+		netpkg.SetDefaultDNSAddress(svr.common.DNSServer)
 	}
 
-	// login to frps
-	for {
-		conn, cm, err := svr.login()
-		if err != nil {
-			xl.Warn("login to server failed: %v", err)
-
-			// if login_fail_exit is true, just exit this program
-			// otherwise sleep a while and try again to connect to server
-			if lo.FromPtr(svr.cfg.LoginFailExit) {
-				return err
-			}
-			util.RandomSleep(5*time.Second, 0.9, 1.1)
-		} else {
-			// login success
-			ctl := NewControl(svr.ctx, svr.runID, conn, cm, svr.cfg, svr.pxyCfgs, svr.visitorCfgs, svr.authSetter)
-			ctl.Run()
-			svr.ctlMu.Lock()
-			svr.ctl = ctl
-			svr.ctlMu.Unlock()
-			break
+	if svr.vnetController != nil {
+		if err := svr.vnetController.Init(); err != nil {
+			log.Errorf("init virtual network controller error: %v", err)
+			return err
 		}
+		go func() {
+			log.Infof("virtual network controller start...")
+			if err := svr.vnetController.Run(); err != nil {
+				log.Warnf("virtual network controller exit with error: %v", err)
+			}
+		}()
+	}
+
+	if svr.webServer != nil {
+		go func() {
+			log.Infof("admin server listen on %s", svr.webServer.Address())
+			if err := svr.webServer.Run(); err != nil {
+				log.Warnf("admin server exit with error: %v", err)
+			}
+		}()
+	}
+
+	// first login to frps
+	svr.loopLoginUntilSuccess(10*time.Second, lo.FromPtr(svr.common.LoginFailExit))
+	if svr.ctl == nil {
+		cancelCause := cancelErr{}
+		_ = errors.As(context.Cause(svr.ctx), &cancelCause)
+		return fmt.Errorf("login to the server failed: %v. With loginFailExit enabled, no additional retries will be attempted", cancelCause.Err)
 	}
 
 	go svr.keepControllerWorking()
 
-	if svr.cfg.WebServer.Port != 0 {
-		// Init admin server assets
-		assets.Load(svr.cfg.WebServer.AssetsDir)
-
-		address := net.JoinHostPort(svr.cfg.WebServer.Addr, strconv.Itoa(svr.cfg.WebServer.Port))
-		err := svr.RunAdminServer(address)
-		if err != nil {
-			log.Warn("run admin server error: %v", err)
-		}
-		log.Info("admin server listen on %s:%d", svr.cfg.WebServer.Addr, svr.cfg.WebServer.Port)
-	}
 	<-svr.ctx.Done()
-	// service context may not be canceled by svr.Close(), we should call it here to release resources
-	if atomic.LoadUint32(&svr.exit) == 0 {
-		svr.Close()
-	}
+	svr.stop()
 	return nil
 }
 
 func (svr *Service) keepControllerWorking() {
-	xl := xlog.FromContextSafe(svr.ctx)
-	maxDelayTime := 20 * time.Second
-	delayTime := time.Second
+	<-svr.ctl.Done()
 
-	// if frpc reconnect frps, we need to limit retry times in 1min
-	// current retry logic is sleep 0s, 0s, 0s, 1s, 2s, 4s, 8s, ...
-	// when exceed 1min, we will reset delay and counts
-	cutoffTime := time.Now().Add(time.Minute)
-	reconnectDelay := time.Second
-	reconnectCounts := 1
-
-	for {
-		<-svr.ctl.ClosedDoneCh()
-		if atomic.LoadUint32(&svr.exit) != 0 {
-			return
+	// There is a situation where the login is successful but due to certain reasons,
+	// the control immediately exits. It is necessary to limit the frequency of reconnection in this case.
+	// The interval for the first three retries in 1 minute will be very short, and then it will increase exponentially.
+	// The maximum interval is 20 seconds.
+	wait.BackoffUntil(func() (bool, error) {
+		// loopLoginUntilSuccess is another layer of loop that will continuously attempt to
+		// login to the server until successful.
+		svr.loopLoginUntilSuccess(20*time.Second, false)
+		if svr.ctl != nil {
+			<-svr.ctl.Done()
+			return false, errors.New("control is closed and try another loop")
 		}
-
-		// the first three attempts with a low delay
-		if reconnectCounts > 3 {
-			util.RandomSleep(reconnectDelay, 0.9, 1.1)
-			xl.Info("wait %v to reconnect", reconnectDelay)
-			reconnectDelay *= 2
-		} else {
-			util.RandomSleep(time.Second, 0, 0.5)
-		}
-		reconnectCounts++
-
-		now := time.Now()
-		if now.After(cutoffTime) {
-			// reset
-			cutoffTime = now.Add(time.Minute)
-			reconnectDelay = time.Second
-			reconnectCounts = 1
-		}
-
-		for {
-			if atomic.LoadUint32(&svr.exit) != 0 {
-				return
-			}
-
-			xl.Info("try to reconnect to server...")
-			conn, cm, err := svr.login()
-			if err != nil {
-				xl.Warn("reconnect to server error: %v, wait %v for another retry", err, delayTime)
-				util.RandomSleep(delayTime, 0.9, 1.1)
-
-				delayTime *= 2
-				if delayTime > maxDelayTime {
-					delayTime = maxDelayTime
-				}
-				continue
-			}
-			// reconnect success, init delayTime
-			delayTime = time.Second
-
-			ctl := NewControl(svr.ctx, svr.runID, conn, cm, svr.cfg, svr.pxyCfgs, svr.visitorCfgs, svr.authSetter)
-			ctl.Run()
-			svr.ctlMu.Lock()
-			if svr.ctl != nil {
-				svr.ctl.Close()
-			}
-			svr.ctl = ctl
-			svr.ctlMu.Unlock()
-			break
-		}
-	}
+		// If the control is nil, it means that the login failed and the service is also closed.
+		return false, nil
+	}, wait.NewFastBackoffManager(
+		wait.FastBackoffOptions{
+			Duration:        time.Second,
+			Factor:          2,
+			Jitter:          0.1,
+			MaxDuration:     20 * time.Second,
+			FastRetryCount:  3,
+			FastRetryDelay:  200 * time.Millisecond,
+			FastRetryWindow: time.Minute,
+			FastRetryJitter: 0.5,
+		},
+	), true, svr.ctx.Done())
 }
 
 // login creates a connection to frps and registers it self as a client
 // conn: control connection
 // session: if it's not nil, using tcp mux
-func (svr *Service) login() (conn net.Conn, cm *ConnectionManager, err error) {
+func (svr *Service) login() (conn net.Conn, connector Connector, err error) {
 	xl := xlog.FromContextSafe(svr.ctx)
-	cm = NewConnectionManager(svr.ctx, svr.cfg)
-
-	if err = cm.OpenConnection(); err != nil {
+	connector = svr.connectorCreator(svr.ctx, svr.common)
+	if err = connector.Open(); err != nil {
 		return nil, nil, err
 	}
 
 	defer func() {
 		if err != nil {
-			cm.Close()
+			connector.Close()
 		}
 	}()
 
-	conn, err = cm.Connect()
+	conn, err = connector.Connect()
 	if err != nil {
 		return
 	}
@@ -262,12 +267,15 @@ func (svr *Service) login() (conn net.Conn, cm *ConnectionManager, err error) {
 	loginMsg := &msg.Login{
 		Arch:      runtime.GOARCH,
 		Os:        runtime.GOOS,
-		PoolCount: svr.cfg.Transport.PoolCount,
-		User:      svr.cfg.User,
+		PoolCount: svr.common.Transport.PoolCount,
+		User:      svr.common.User,
 		Version:   version.Full(),
 		Timestamp: time.Now().Unix(),
 		RunID:     svr.runID,
-		Metas:     svr.cfg.Metadatas,
+		Metas:     svr.common.Metadatas,
+	}
+	if svr.clientSpec != nil {
+		loginMsg.ClientSpec = *svr.clientSpec
 	}
 
 	// Add auth
@@ -288,21 +296,80 @@ func (svr *Service) login() (conn net.Conn, cm *ConnectionManager, err error) {
 
 	if loginRespMsg.Error != "" {
 		err = fmt.Errorf("%s", loginRespMsg.Error)
-		xl.Error("%s", loginRespMsg.Error)
+		xl.Errorf("%s", loginRespMsg.Error)
 		return
 	}
 
 	svr.runID = loginRespMsg.RunID
-	xl.ResetPrefixes()
-	xl.AppendPrefix(svr.runID)
+	xl.AddPrefix(xlog.LogPrefix{Name: "runID", Value: svr.runID})
 
-	xl.Info("login to server success, get run id [%s]", loginRespMsg.RunID)
+	xl.Infof("login to server success, get run id [%s]", loginRespMsg.RunID)
 	return
 }
 
-func (svr *Service) ReloadConf(pxyCfgs []v1.ProxyConfigurer, visitorCfgs []v1.VisitorConfigurer) error {
+func (svr *Service) loopLoginUntilSuccess(maxInterval time.Duration, firstLoginExit bool) {
+	xl := xlog.FromContextSafe(svr.ctx)
+
+	loginFunc := func() (bool, error) {
+		xl.Infof("try to connect to server...")
+		conn, connector, err := svr.login()
+		if err != nil {
+			xl.Warnf("connect to server error: %v", err)
+			if firstLoginExit {
+				svr.cancel(cancelErr{Err: err})
+			}
+			return false, err
+		}
+
+		svr.cfgMu.RLock()
+		proxyCfgs := svr.proxyCfgs
+		visitorCfgs := svr.visitorCfgs
+		svr.cfgMu.RUnlock()
+		connEncrypted := true
+		if svr.clientSpec != nil && svr.clientSpec.Type == "ssh-tunnel" {
+			connEncrypted = false
+		}
+		sessionCtx := &SessionContext{
+			Common:         svr.common,
+			RunID:          svr.runID,
+			Conn:           conn,
+			ConnEncrypted:  connEncrypted,
+			AuthSetter:     svr.authSetter,
+			Connector:      connector,
+			VnetController: svr.vnetController,
+		}
+		ctl, err := NewControl(svr.ctx, sessionCtx)
+		if err != nil {
+			conn.Close()
+			xl.Errorf("new control error: %v", err)
+			return false, err
+		}
+		ctl.SetInWorkConnCallback(svr.handleWorkConnCb)
+
+		ctl.Run(proxyCfgs, visitorCfgs)
+		// close and replace previous control
+		svr.ctlMu.Lock()
+		if svr.ctl != nil {
+			svr.ctl.Close()
+		}
+		svr.ctl = ctl
+		svr.ctlMu.Unlock()
+		return true, nil
+	}
+
+	// try to reconnect to server until success
+	wait.BackoffUntil(loginFunc, wait.NewFastBackoffManager(
+		wait.FastBackoffOptions{
+			Duration:    time.Second,
+			Factor:      2,
+			Jitter:      0.1,
+			MaxDuration: maxInterval,
+		}), true, svr.ctx.Done())
+}
+
+func (svr *Service) UpdateAllConfigurer(proxyCfgs []v1.ProxyConfigurer, visitorCfgs []v1.VisitorConfigurer) error {
 	svr.cfgMu.Lock()
-	svr.pxyCfgs = pxyCfgs
+	svr.proxyCfgs = proxyCfgs
 	svr.visitorCfgs = visitorCfgs
 	svr.cfgMu.Unlock()
 
@@ -311,7 +378,7 @@ func (svr *Service) ReloadConf(pxyCfgs []v1.ProxyConfigurer, visitorCfgs []v1.Vi
 	svr.ctlMu.RUnlock()
 
 	if ctl != nil {
-		return svr.ctl.ReloadConf(pxyCfgs, visitorCfgs)
+		return svr.ctl.UpdateAllConfigurer(proxyCfgs, visitorCfgs)
 	}
 	return nil
 }
@@ -321,191 +388,44 @@ func (svr *Service) Close() {
 }
 
 func (svr *Service) GracefulClose(d time.Duration) {
-	atomic.StoreUint32(&svr.exit, 1)
+	svr.gracefulShutdownDuration = d
+	svr.cancel(nil)
+}
 
-	svr.ctlMu.RLock()
+func (svr *Service) stop() {
+	svr.ctlMu.Lock()
+	defer svr.ctlMu.Unlock()
 	if svr.ctl != nil {
-		svr.ctl.GracefulClose(d)
+		svr.ctl.GracefulClose(svr.gracefulShutdownDuration)
 		svr.ctl = nil
 	}
+}
+
+func (svr *Service) getProxyStatus(name string) (*proxy.WorkingStatus, bool) {
+	svr.ctlMu.RLock()
+	ctl := svr.ctl
 	svr.ctlMu.RUnlock()
 
-	if svr.cancel != nil {
-		svr.cancel()
+	if ctl == nil {
+		return nil, false
+	}
+	return ctl.pm.GetProxyStatus(name)
+}
+
+func (svr *Service) StatusExporter() StatusExporter {
+	return &statusExporterImpl{
+		getProxyStatusFunc: svr.getProxyStatus,
 	}
 }
 
-type ConnectionManager struct {
-	ctx context.Context
-	cfg *v1.ClientCommonConfig
-
-	muxSession *fmux.Session
-	quicConn   quic.Connection
+type StatusExporter interface {
+	GetProxyStatus(name string) (*proxy.WorkingStatus, bool)
 }
 
-func NewConnectionManager(ctx context.Context, cfg *v1.ClientCommonConfig) *ConnectionManager {
-	return &ConnectionManager{
-		ctx: ctx,
-		cfg: cfg,
-	}
+type statusExporterImpl struct {
+	getProxyStatusFunc func(name string) (*proxy.WorkingStatus, bool)
 }
 
-func (cm *ConnectionManager) OpenConnection() error {
-	xl := xlog.FromContextSafe(cm.ctx)
-
-	// special for quic
-	if strings.EqualFold(cm.cfg.Transport.Protocol, "quic") {
-		var tlsConfig *tls.Config
-		var err error
-		sn := cm.cfg.Transport.TLS.ServerName
-		if sn == "" {
-			sn = cm.cfg.ServerAddr
-		}
-		if lo.FromPtr(cm.cfg.Transport.TLS.Enable) {
-			tlsConfig, err = transport.NewClientTLSConfig(
-				cm.cfg.Transport.TLS.CertFile,
-				cm.cfg.Transport.TLS.KeyFile,
-				cm.cfg.Transport.TLS.TrustedCaFile,
-				sn)
-		} else {
-			tlsConfig, err = transport.NewClientTLSConfig("", "", "", sn)
-		}
-		if err != nil {
-			xl.Warn("fail to build tls configuration, err: %v", err)
-			return err
-		}
-		tlsConfig.NextProtos = []string{"frp"}
-
-		conn, err := quic.DialAddr(
-			cm.ctx,
-			net.JoinHostPort(cm.cfg.ServerAddr, strconv.Itoa(cm.cfg.ServerPort)),
-			tlsConfig, &quic.Config{
-				MaxIdleTimeout:     time.Duration(cm.cfg.Transport.QUIC.MaxIdleTimeout) * time.Second,
-				MaxIncomingStreams: int64(cm.cfg.Transport.QUIC.MaxIncomingStreams),
-				KeepAlivePeriod:    time.Duration(cm.cfg.Transport.QUIC.KeepalivePeriod) * time.Second,
-			})
-		if err != nil {
-			return err
-		}
-		cm.quicConn = conn
-		return nil
-	}
-
-	if !lo.FromPtr(cm.cfg.Transport.TCPMux) {
-		return nil
-	}
-
-	conn, err := cm.realConnect()
-	if err != nil {
-		return err
-	}
-
-	fmuxCfg := fmux.DefaultConfig()
-	fmuxCfg.KeepAliveInterval = time.Duration(cm.cfg.Transport.TCPMuxKeepaliveInterval) * time.Second
-	fmuxCfg.LogOutput = io.Discard
-	fmuxCfg.MaxStreamWindowSize = 6 * 1024 * 1024
-	session, err := fmux.Client(conn, fmuxCfg)
-	if err != nil {
-		return err
-	}
-	cm.muxSession = session
-	return nil
-}
-
-func (cm *ConnectionManager) Connect() (net.Conn, error) {
-	if cm.quicConn != nil {
-		stream, err := cm.quicConn.OpenStreamSync(context.Background())
-		if err != nil {
-			return nil, err
-		}
-		return utilnet.QuicStreamToNetConn(stream, cm.quicConn), nil
-	} else if cm.muxSession != nil {
-		stream, err := cm.muxSession.OpenStream()
-		if err != nil {
-			return nil, err
-		}
-		return stream, nil
-	}
-
-	return cm.realConnect()
-}
-
-func (cm *ConnectionManager) realConnect() (net.Conn, error) {
-	xl := xlog.FromContextSafe(cm.ctx)
-	var tlsConfig *tls.Config
-	var err error
-	tlsEnable := lo.FromPtr(cm.cfg.Transport.TLS.Enable)
-	if cm.cfg.Transport.Protocol == "wss" {
-		tlsEnable = true
-	}
-	if tlsEnable {
-		sn := cm.cfg.Transport.TLS.ServerName
-		if sn == "" {
-			sn = cm.cfg.ServerAddr
-		}
-
-		tlsConfig, err = transport.NewClientTLSConfig(
-			cm.cfg.Transport.TLS.CertFile,
-			cm.cfg.Transport.TLS.KeyFile,
-			cm.cfg.Transport.TLS.TrustedCaFile,
-			sn)
-		if err != nil {
-			xl.Warn("fail to build tls configuration, err: %v", err)
-			return nil, err
-		}
-	}
-
-	proxyType, addr, auth, err := libdial.ParseProxyURL(cm.cfg.Transport.ProxyURL)
-	if err != nil {
-		xl.Error("fail to parse proxy url")
-		return nil, err
-	}
-	dialOptions := []libdial.DialOption{}
-	protocol := cm.cfg.Transport.Protocol
-	switch protocol {
-	case "websocket":
-		protocol = "tcp"
-		dialOptions = append(dialOptions, libdial.WithAfterHook(libdial.AfterHook{Hook: utilnet.DialHookWebsocket(protocol, "")}))
-		dialOptions = append(dialOptions, libdial.WithAfterHook(libdial.AfterHook{
-			Hook: utilnet.DialHookCustomTLSHeadByte(tlsConfig != nil, lo.FromPtr(cm.cfg.Transport.TLS.DisableCustomTLSFirstByte)),
-		}))
-		dialOptions = append(dialOptions, libdial.WithTLSConfig(tlsConfig))
-	case "wss":
-		protocol = "tcp"
-		dialOptions = append(dialOptions, libdial.WithTLSConfigAndPriority(100, tlsConfig))
-		// Make sure that if it is wss, the websocket hook is executed after the tls hook.
-		dialOptions = append(dialOptions, libdial.WithAfterHook(libdial.AfterHook{Hook: utilnet.DialHookWebsocket(protocol, tlsConfig.ServerName), Priority: 110}))
-	default:
-		dialOptions = append(dialOptions, libdial.WithAfterHook(libdial.AfterHook{
-			Hook: utilnet.DialHookCustomTLSHeadByte(tlsConfig != nil, lo.FromPtr(cm.cfg.Transport.TLS.DisableCustomTLSFirstByte)),
-		}))
-		dialOptions = append(dialOptions, libdial.WithTLSConfig(tlsConfig))
-	}
-
-	if cm.cfg.Transport.ConnectServerLocalIP != "" {
-		dialOptions = append(dialOptions, libdial.WithLocalAddr(cm.cfg.Transport.ConnectServerLocalIP))
-	}
-	dialOptions = append(dialOptions,
-		libdial.WithProtocol(protocol),
-		libdial.WithTimeout(time.Duration(cm.cfg.Transport.DialServerTimeout)*time.Second),
-		libdial.WithKeepAlive(time.Duration(cm.cfg.Transport.DialServerKeepAlive)*time.Second),
-		libdial.WithProxy(proxyType, addr),
-		libdial.WithProxyAuth(auth),
-	)
-	conn, err := libdial.DialContext(
-		cm.ctx,
-		net.JoinHostPort(cm.cfg.ServerAddr, strconv.Itoa(cm.cfg.ServerPort)),
-		dialOptions...,
-	)
-	return conn, err
-}
-
-func (cm *ConnectionManager) Close() error {
-	if cm.quicConn != nil {
-		_ = cm.quicConn.CloseWithError(0, "")
-	}
-	if cm.muxSession != nil {
-		_ = cm.muxSession.Close()
-	}
-	return nil
+func (s *statusExporterImpl) GetProxyStatus(name string) (*proxy.WorkingStatus, bool) {
+	return s.getProxyStatusFunc(name)
 }

client/visitor/stcp.go

@@ -44,6 +44,10 @@ func (sv *STCPVisitor) Run() (err error) {
 	}
 
 	go sv.internalConnWorker()
+
+	if sv.plugin != nil {
+		sv.plugin.Start()
+	}
 	return
 }
 
@@ -56,7 +60,7 @@ func (sv *STCPVisitor) worker() {
 	for {
 		conn, err := sv.l.Accept()
 		if err != nil {
-			xl.Warn("stcp local listener closed")
+			xl.Warnf("stcp local listener closed")
 			return
 		}
 		go sv.handleConn(conn)
@@ -68,7 +72,7 @@ func (sv *STCPVisitor) internalConnWorker() {
 	for {
 		conn, err := sv.internalLn.Accept()
 		if err != nil {
-			xl.Warn("stcp internal listener closed")
+			xl.Warnf("stcp internal listener closed")
 			return
 		}
 		go sv.handleConn(conn)
@@ -79,7 +83,7 @@ func (sv *STCPVisitor) handleConn(userConn net.Conn) {
 	xl := xlog.FromContextSafe(sv.ctx)
 	defer userConn.Close()
 
-	xl.Debug("get a new stcp user connection")
+	xl.Debugf("get a new stcp user connection")
 	visitorConn, err := sv.helper.ConnectServer()
 	if err != nil {
 		return
@@ -97,7 +101,7 @@ func (sv *STCPVisitor) handleConn(userConn net.Conn) {
 	}
 	err = msg.WriteMsg(visitorConn, newVisitorConnMsg)
 	if err != nil {
-		xl.Warn("send newVisitorConnMsg to server error: %v", err)
+		xl.Warnf("send newVisitorConnMsg to server error: %v", err)
 		return
 	}
 
@@ -105,13 +109,13 @@ func (sv *STCPVisitor) handleConn(userConn net.Conn) {
 	_ = visitorConn.SetReadDeadline(time.Now().Add(10 * time.Second))
 	err = msg.ReadMsgInto(visitorConn, &newVisitorConnRespMsg)
 	if err != nil {
-		xl.Warn("get newVisitorConnRespMsg error: %v", err)
+		xl.Warnf("get newVisitorConnRespMsg error: %v", err)
 		return
 	}
 	_ = visitorConn.SetReadDeadline(time.Time{})
 
 	if newVisitorConnRespMsg.Error != "" {
-		xl.Warn("start new visitor connection error: %s", newVisitorConnRespMsg.Error)
+		xl.Warnf("start new visitor connection error: %s", newVisitorConnRespMsg.Error)
 		return
 	}
 
@@ -120,7 +124,7 @@ func (sv *STCPVisitor) handleConn(userConn net.Conn) {
 	if sv.cfg.Transport.UseEncryption {
 		remote, err = libio.WithEncryption(remote, []byte(sv.cfg.SecretKey))
 		if err != nil {
-			xl.Error("create encryption stream error: %v", err)
+			xl.Errorf("create encryption stream error: %v", err)
 			return
 		}
 	}

client/visitor/sudp.go

@@ -28,7 +28,7 @@ import (
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 	"github.com/fatedier/frp/pkg/msg"
 	"github.com/fatedier/frp/pkg/proto/udp"
-	utilnet "github.com/fatedier/frp/pkg/util/net"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
 	"github.com/fatedier/frp/pkg/util/util"
 	"github.com/fatedier/frp/pkg/util/xlog"
 )
@@ -62,7 +62,7 @@ func (sv *SUDPVisitor) Run() (err error) {
 	sv.sendCh = make(chan *msg.UDPPacket, 1024)
 	sv.readCh = make(chan *msg.UDPPacket, 1024)
 
-	xl.Info("sudp start to work, listen on %s", addr)
+	xl.Infof("sudp start to work, listen on %s", addr)
 
 	go sv.dispatcher()
 	go udp.ForwardUserConn(sv.udpConn, sv.readCh, sv.sendCh, int(sv.clientCfg.UDPPacketSize))
@@ -84,17 +84,17 @@ func (sv *SUDPVisitor) dispatcher() {
 		select {
 		case firstPacket = <-sv.sendCh:
 			if firstPacket == nil {
-				xl.Info("frpc sudp visitor proxy is closed")
+				xl.Infof("frpc sudp visitor proxy is closed")
 				return
 			}
 		case <-sv.checkCloseCh:
-			xl.Info("frpc sudp visitor proxy is closed")
+			xl.Infof("frpc sudp visitor proxy is closed")
 			return
 		}
 
 		visitorConn, err = sv.getNewVisitorConn()
 		if err != nil {
-			xl.Warn("newVisitorConn to frps error: %v, try to reconnect", err)
+			xl.Warnf("newVisitorConn to frps error: %v, try to reconnect", err)
 			continue
 		}
 
@@ -111,7 +111,7 @@ func (sv *SUDPVisitor) dispatcher() {
 
 func (sv *SUDPVisitor) worker(workConn net.Conn, firstPacket *msg.UDPPacket) {
 	xl := xlog.FromContextSafe(sv.ctx)
-	xl.Debug("starting sudp proxy worker")
+	xl.Debugf("starting sudp proxy worker")
 
 	wg := &sync.WaitGroup{}
 	wg.Add(2)
@@ -134,21 +134,21 @@ func (sv *SUDPVisitor) worker(workConn net.Conn, firstPacket *msg.UDPPacket) {
 			// frpc will send heartbeat in workConn to frpc visitor for keeping alive
 			_ = conn.SetReadDeadline(time.Now().Add(60 * time.Second))
 			if rawMsg, errRet = msg.ReadMsg(conn); errRet != nil {
-				xl.Warn("read from workconn for user udp conn error: %v", errRet)
+				xl.Warnf("read from workconn for user udp conn error: %v", errRet)
 				return
 			}
 
 			_ = conn.SetReadDeadline(time.Time{})
 			switch m := rawMsg.(type) {
 			case *msg.Ping:
-				xl.Debug("frpc visitor get ping message from frpc")
+				xl.Debugf("frpc visitor get ping message from frpc")
 				continue
 			case *msg.UDPPacket:
 				if errRet := errors.PanicToError(func() {
 					sv.readCh <- m
-					xl.Trace("frpc visitor get udp packet from workConn: %s", m.Content)
+					xl.Tracef("frpc visitor get udp packet from workConn: %s", m.Content)
 				}); errRet != nil {
-					xl.Info("reader goroutine for udp work connection closed")
+					xl.Infof("reader goroutine for udp work connection closed")
 					return
 				}
 			}
@@ -165,25 +165,25 @@ func (sv *SUDPVisitor) worker(workConn net.Conn, firstPacket *msg.UDPPacket) {
 		var errRet error
 		if firstPacket != nil {
 			if errRet = msg.WriteMsg(conn, firstPacket); errRet != nil {
-				xl.Warn("sender goroutine for udp work connection closed: %v", errRet)
+				xl.Warnf("sender goroutine for udp work connection closed: %v", errRet)
 				return
 			}
-			xl.Trace("send udp package to workConn: %s", firstPacket.Content)
+			xl.Tracef("send udp package to workConn: %s", firstPacket.Content)
 		}
 
 		for {
 			select {
 			case udpMsg, ok := <-sv.sendCh:
 				if !ok {
-					xl.Info("sender goroutine for udp work connection closed")
+					xl.Infof("sender goroutine for udp work connection closed")
 					return
 				}
 
 				if errRet = msg.WriteMsg(conn, udpMsg); errRet != nil {
-					xl.Warn("sender goroutine for udp work connection closed: %v", errRet)
+					xl.Warnf("sender goroutine for udp work connection closed: %v", errRet)
 					return
 				}
-				xl.Trace("send udp package to workConn: %s", udpMsg.Content)
+				xl.Tracef("send udp package to workConn: %s", udpMsg.Content)
 			case <-closeCh:
 				return
 			}
@@ -194,7 +194,7 @@ func (sv *SUDPVisitor) worker(workConn net.Conn, firstPacket *msg.UDPPacket) {
 	go workConnSenderFn(workConn)
 
 	wg.Wait()
-	xl.Info("sudp worker is closed")
+	xl.Infof("sudp worker is closed")
 }
 
 func (sv *SUDPVisitor) getNewVisitorConn() (net.Conn, error) {
@@ -235,14 +235,14 @@ func (sv *SUDPVisitor) getNewVisitorConn() (net.Conn, error) {
 	if sv.cfg.Transport.UseEncryption {
 		remote, err = libio.WithEncryption(remote, []byte(sv.cfg.SecretKey))
 		if err != nil {
-			xl.Error("create encryption stream error: %v", err)
+			xl.Errorf("create encryption stream error: %v", err)
 			return nil, err
 		}
 	}
 	if sv.cfg.Transport.UseCompression {
 		remote = libio.WithCompression(remote)
 	}
-	return utilnet.WrapReadWriteCloserToConn(remote, visitorConn), nil
+	return netpkg.WrapReadWriteCloserToConn(remote, visitorConn), nil
 }
 
 func (sv *SUDPVisitor) Close() {

client/visitor/visitor.go

@@ -20,12 +20,14 @@ import (
 	"sync"
 
 	v1 "github.com/fatedier/frp/pkg/config/v1"
+	plugin "github.com/fatedier/frp/pkg/plugin/visitor"
 	"github.com/fatedier/frp/pkg/transport"
-	utilnet "github.com/fatedier/frp/pkg/util/net"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
 	"github.com/fatedier/frp/pkg/util/xlog"
+	"github.com/fatedier/frp/pkg/vnet"
 )
 
-// Helper wrapps some functions for visitor to use.
+// Helper wraps some functions for visitor to use.
 type Helper interface {
 	// ConnectServer directly connects to the frp server.
 	ConnectServer() (net.Conn, error)
@@ -34,6 +36,8 @@ type Helper interface {
 	// MsgTransporter returns the message transporter that is used to send and receive messages
 	// to the frp server through the controller.
 	MsgTransporter() transport.MessageTransporter
+	// VNetController returns the vnet controller that is used to manage the virtual network.
+	VNetController() *vnet.Controller
 	// RunID returns the run id of current controller.
 	RunID() string
 }
@@ -50,13 +54,33 @@ func NewVisitor(
 	cfg v1.VisitorConfigurer,
 	clientCfg *v1.ClientCommonConfig,
 	helper Helper,
-) (visitor Visitor) {
+) (Visitor, error) {
 	xl := xlog.FromContextSafe(ctx).Spawn().AppendPrefix(cfg.GetBaseConfig().Name)
+	ctx = xlog.NewContext(ctx, xl)
+	var visitor Visitor
 	baseVisitor := BaseVisitor{
 		clientCfg:  clientCfg,
 		helper:     helper,
-		ctx:        xlog.NewContext(ctx, xl),
-		internalLn: utilnet.NewInternalListener(),
+		ctx:        ctx,
+		internalLn: netpkg.NewInternalListener(),
+	}
+	if cfg.GetBaseConfig().Plugin.Type != "" {
+		p, err := plugin.Create(
+			cfg.GetBaseConfig().Plugin.Type,
+			plugin.PluginContext{
+				Name:           cfg.GetBaseConfig().Name,
+				Ctx:            ctx,
+				VnetController: helper.VNetController(),
+				HandleConn: func(conn net.Conn) {
+					_ = baseVisitor.AcceptConn(conn)
+				},
+			},
+			cfg.GetBaseConfig().Plugin.VisitorPluginOptions,
+		)
+		if err != nil {
+			return nil, err
+		}
+		baseVisitor.plugin = p
 	}
 	switch cfg := cfg.(type) {
 	case *v1.STCPVisitorConfig:
@@ -77,14 +101,15 @@ func NewVisitor(
 			checkCloseCh: make(chan struct{}),
 		}
 	}
-	return
+	return visitor, nil
 }
 
 type BaseVisitor struct {
 	clientCfg  *v1.ClientCommonConfig
 	helper     Helper
 	l          net.Listener
-	internalLn *utilnet.InternalListener
+	internalLn *netpkg.InternalListener
+	plugin     plugin.Plugin
 
 	mu  sync.RWMutex
 	ctx context.Context
@@ -101,4 +126,7 @@ func (v *BaseVisitor) Close() {
 	if v.internalLn != nil {
 		v.internalLn.Close()
 	}
+	if v.plugin != nil {
+		v.plugin.Close()
+	}
 }

client/visitor/visitor_manager.go

@@ -27,6 +27,7 @@ import (
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 	"github.com/fatedier/frp/pkg/transport"
 	"github.com/fatedier/frp/pkg/util/xlog"
+	"github.com/fatedier/frp/pkg/vnet"
 )
 
 type Manager struct {
@@ -35,7 +36,8 @@ type Manager struct {
 	visitors  map[string]Visitor
 	helper    Helper
 
-	checkInterval time.Duration
+	checkInterval           time.Duration
+	keepVisitorsRunningOnce sync.Once
 
 	mu  sync.RWMutex
 	ctx context.Context
@@ -49,6 +51,7 @@ func NewManager(
 	clientCfg *v1.ClientCommonConfig,
 	connectServer func() (net.Conn, error),
 	msgTransporter transport.MessageTransporter,
+	vnetController *vnet.Controller,
 ) *Manager {
 	m := &Manager{
 		clientCfg:     clientCfg,
@@ -61,13 +64,16 @@ func NewManager(
 	m.helper = &visitorHelperImpl{
 		connectServerFn: connectServer,
 		msgTransporter:  msgTransporter,
+		vnetController:  vnetController,
 		transferConnFn:  m.TransferConn,
 		runID:           runID,
 	}
 	return m
 }
 
-func (vm *Manager) Run() {
+// keepVisitorsRunning checks all visitors' status periodically, if some visitor is not running, start it.
+// It will only start after Reload is called and a new visitor is added.
+func (vm *Manager) keepVisitorsRunning() {
 	xl := xlog.FromContextSafe(vm.ctx)
 
 	ticker := time.NewTicker(vm.checkInterval)
@@ -76,14 +82,14 @@ func (vm *Manager) Run() {
 	for {
 		select {
 		case <-vm.stopCh:
-			xl.Info("gracefully shutdown visitor manager")
+			xl.Tracef("gracefully shutdown visitor manager")
 			return
 		case <-ticker.C:
 			vm.mu.Lock()
 			for _, cfg := range vm.cfgs {
 				name := cfg.GetBaseConfig().Name
 				if _, exist := vm.visitors[name]; !exist {
-					xl.Info("try to start visitor [%s]", name)
+					xl.Infof("try to start visitor [%s]", name)
 					_ = vm.startVisitor(cfg)
 				}
 			}
@@ -109,18 +115,29 @@ func (vm *Manager) Close() {
 func (vm *Manager) startVisitor(cfg v1.VisitorConfigurer) (err error) {
 	xl := xlog.FromContextSafe(vm.ctx)
 	name := cfg.GetBaseConfig().Name
-	visitor := NewVisitor(vm.ctx, cfg, vm.clientCfg, vm.helper)
+	visitor, err := NewVisitor(vm.ctx, cfg, vm.clientCfg, vm.helper)
+	if err != nil {
+		xl.Warnf("new visitor error: %v", err)
+		return
+	}
 	err = visitor.Run()
 	if err != nil {
-		xl.Warn("start error: %v", err)
+		xl.Warnf("start error: %v", err)
 	} else {
 		vm.visitors[name] = visitor
-		xl.Info("start visitor success")
+		xl.Infof("start visitor success")
 	}
 	return
 }
 
-func (vm *Manager) Reload(cfgs []v1.VisitorConfigurer) {
+func (vm *Manager) UpdateAll(cfgs []v1.VisitorConfigurer) {
+	if len(cfgs) > 0 {
+		// Only start keepVisitorsRunning goroutine once and only when there is at least one visitor.
+		vm.keepVisitorsRunningOnce.Do(func() {
+			go vm.keepVisitorsRunning()
+		})
+	}
+
 	xl := xlog.FromContextSafe(vm.ctx)
 	cfgsMap := lo.KeyBy(cfgs, func(c v1.VisitorConfigurer) string {
 		return c.GetBaseConfig().Name
@@ -146,7 +163,7 @@ func (vm *Manager) Reload(cfgs []v1.VisitorConfigurer) {
 		}
 	}
 	if len(delNames) > 0 {
-		xl.Info("visitor removed: %v", delNames)
+		xl.Infof("visitor removed: %v", delNames)
 	}
 
 	addNames := make([]string, 0)
@@ -159,7 +176,7 @@ func (vm *Manager) Reload(cfgs []v1.VisitorConfigurer) {
 		}
 	}
 	if len(addNames) > 0 {
-		xl.Info("visitor added: %v", addNames)
+		xl.Infof("visitor added: %v", addNames)
 	}
 }
 
@@ -177,6 +194,7 @@ func (vm *Manager) TransferConn(name string, conn net.Conn) error {
 type visitorHelperImpl struct {
 	connectServerFn func() (net.Conn, error)
 	msgTransporter  transport.MessageTransporter
+	vnetController  *vnet.Controller
 	transferConnFn  func(name string, conn net.Conn) error
 	runID           string
 }
@@ -193,6 +211,10 @@ func (v *visitorHelperImpl) MsgTransporter() transport.MessageTransporter {
 	return v.msgTransporter
 }
 
+func (v *visitorHelperImpl) VNetController() *vnet.Controller {
+	return v.vnetController
+}
+
 func (v *visitorHelperImpl) RunID() string {
 	return v.runID
 }

client/visitor/xtcp.go

@@ -33,7 +33,7 @@ import (
 	"github.com/fatedier/frp/pkg/msg"
 	"github.com/fatedier/frp/pkg/nathole"
 	"github.com/fatedier/frp/pkg/transport"
-	utilnet "github.com/fatedier/frp/pkg/util/net"
+	netpkg "github.com/fatedier/frp/pkg/util/net"
 	"github.com/fatedier/frp/pkg/util/util"
 	"github.com/fatedier/frp/pkg/util/xlog"
 )
@@ -73,6 +73,10 @@ func (sv *XTCPVisitor) Run() (err error) {
 		sv.retryLimiter = rate.NewLimiter(rate.Every(time.Hour/time.Duration(sv.cfg.MaxRetriesAnHour)), sv.cfg.MaxRetriesAnHour)
 		go sv.keepTunnelOpenWorker()
 	}
+
+	if sv.plugin != nil {
+		sv.plugin.Start()
+	}
 	return
 }
 
@@ -93,7 +97,7 @@ func (sv *XTCPVisitor) worker() {
 	for {
 		conn, err := sv.l.Accept()
 		if err != nil {
-			xl.Warn("xtcp local listener closed")
+			xl.Warnf("xtcp local listener closed")
 			return
 		}
 		go sv.handleConn(conn)
@@ -105,7 +109,7 @@ func (sv *XTCPVisitor) internalConnWorker() {
 	for {
 		conn, err := sv.internalLn.Accept()
 		if err != nil {
-			xl.Warn("xtcp internal listener closed")
+			xl.Warnf("xtcp internal listener closed")
 			return
 		}
 		go sv.handleConn(conn)
@@ -140,14 +144,14 @@ func (sv *XTCPVisitor) keepTunnelOpenWorker() {
 		case <-sv.ctx.Done():
 			return
 		case <-ticker.C:
-			xl.Debug("keepTunnelOpenWorker try to check tunnel...")
+			xl.Debugf("keepTunnelOpenWorker try to check tunnel...")
 			conn, err := sv.getTunnelConn()
 			if err != nil {
-				xl.Warn("keepTunnelOpenWorker get tunnel connection error: %v", err)
+				xl.Warnf("keepTunnelOpenWorker get tunnel connection error: %v", err)
 				_ = sv.retryLimiter.Wait(sv.ctx)
 				continue
 			}
-			xl.Debug("keepTunnelOpenWorker check success")
+			xl.Debugf("keepTunnelOpenWorker check success")
 			if conn != nil {
 				conn.Close()
 			}
@@ -157,14 +161,14 @@ func (sv *XTCPVisitor) keepTunnelOpenWorker() {
 
 func (sv *XTCPVisitor) handleConn(userConn net.Conn) {
 	xl := xlog.FromContextSafe(sv.ctx)
-	isConnTrasfered := false
+	isConnTransfered := false
 	defer func() {
-		if !isConnTrasfered {
+		if !isConnTransfered {
 			userConn.Close()
 		}
 	}()
 
-	xl.Debug("get a new xtcp user connection")
+	xl.Debugf("get a new xtcp user connection")
 
 	// Open a tunnel connection to the server. If there is already a successful hole-punching connection,
 	// it will be reused. Otherwise, it will block and wait for a successful hole-punching connection until timeout.
@@ -176,18 +180,18 @@ func (sv *XTCPVisitor) handleConn(userConn net.Conn) {
 	}
 	tunnelConn, err := sv.openTunnel(ctx)
 	if err != nil {
-		xl.Error("open tunnel error: %v", err)
+		xl.Errorf("open tunnel error: %v", err)
 		// no fallback, just return
 		if sv.cfg.FallbackTo == "" {
 			return
 		}
 
-		xl.Debug("try to transfer connection to visitor: %s", sv.cfg.FallbackTo)
+		xl.Debugf("try to transfer connection to visitor: %s", sv.cfg.FallbackTo)
 		if err := sv.helper.TransferConn(sv.cfg.FallbackTo, userConn); err != nil {
-			xl.Error("transfer connection to visitor %s error: %v", sv.cfg.FallbackTo, err)
+			xl.Errorf("transfer connection to visitor %s error: %v", sv.cfg.FallbackTo, err)
 			return
 		}
-		isConnTrasfered = true
+		isConnTransfered = true
 		return
 	}
 
@@ -195,7 +199,7 @@ func (sv *XTCPVisitor) handleConn(userConn net.Conn) {
 	if sv.cfg.Transport.UseEncryption {
 		muxConnRWCloser, err = libio.WithEncryption(muxConnRWCloser, []byte(sv.cfg.SecretKey))
 		if err != nil {
-			xl.Error("create encryption stream error: %v", err)
+			xl.Errorf("create encryption stream error: %v", err)
 			return
 		}
 	}
@@ -206,9 +210,9 @@ func (sv *XTCPVisitor) handleConn(userConn net.Conn) {
 	}
 
 	_, _, errs := libio.Join(userConn, muxConnRWCloser)
-	xl.Debug("join connections closed")
+	xl.Debugf("join connections closed")
 	if len(errs) > 0 {
-		xl.Trace("join connections errors: %v", errs)
+		xl.Tracef("join connections errors: %v", errs)
 	}
 }
 
@@ -239,7 +243,7 @@ func (sv *XTCPVisitor) openTunnel(ctx context.Context) (conn net.Conn, err error
 
 		if err != nil {
 			if err != ErrNoTunnelSession {
-				xl.Warn("get tunnel connection error: %v", err)
+				xl.Warnf("get tunnel connection error: %v", err)
 			}
 			continue
 		}
@@ -268,19 +272,19 @@ func (sv *XTCPVisitor) getTunnelConn() (net.Conn, error) {
 // 4. Create a tunnel session using an underlying UDP connection.
 func (sv *XTCPVisitor) makeNatHole() {
 	xl := xlog.FromContextSafe(sv.ctx)
-	xl.Trace("makeNatHole start")
+	xl.Tracef("makeNatHole start")
 	if err := nathole.PreCheck(sv.ctx, sv.helper.MsgTransporter(), sv.cfg.ServerName, 5*time.Second); err != nil {
-		xl.Warn("nathole precheck error: %v", err)
+		xl.Warnf("nathole precheck error: %v", err)
 		return
 	}
 
-	xl.Trace("nathole prepare start")
+	xl.Tracef("nathole prepare start")
 	prepareResult, err := nathole.Prepare([]string{sv.clientCfg.NatHoleSTUNServer})
 	if err != nil {
-		xl.Warn("nathole prepare error: %v", err)
+		xl.Warnf("nathole prepare error: %v", err)
 		return
 	}
-	xl.Info("nathole prepare success, nat type: %s, behavior: %s, addresses: %v, assistedAddresses: %v",
+	xl.Infof("nathole prepare success, nat type: %s, behavior: %s, addresses: %v, assistedAddresses: %v",
 		prepareResult.NatType, prepareResult.Behavior, prepareResult.Addrs, prepareResult.AssistedAddrs)
 
 	listenConn := prepareResult.ListenConn
@@ -298,30 +302,30 @@ func (sv *XTCPVisitor) makeNatHole() {
 		AssistedAddrs: prepareResult.AssistedAddrs,
 	}
 
-	xl.Trace("nathole exchange info start")
+	xl.Tracef("nathole exchange info start")
 	natHoleRespMsg, err := nathole.ExchangeInfo(sv.ctx, sv.helper.MsgTransporter(), transactionID, natHoleVisitorMsg, 5*time.Second)
 	if err != nil {
 		listenConn.Close()
-		xl.Warn("nathole exchange info error: %v", err)
+		xl.Warnf("nathole exchange info error: %v", err)
 		return
 	}
 
-	xl.Info("get natHoleRespMsg, sid [%s], protocol [%s], candidate address %v, assisted address %v, detectBehavior: %+v",
+	xl.Infof("get natHoleRespMsg, sid [%s], protocol [%s], candidate address %v, assisted address %v, detectBehavior: %+v",
 		natHoleRespMsg.Sid, natHoleRespMsg.Protocol, natHoleRespMsg.CandidateAddrs,
 		natHoleRespMsg.AssistedAddrs, natHoleRespMsg.DetectBehavior)
 
 	newListenConn, raddr, err := nathole.MakeHole(sv.ctx, listenConn, natHoleRespMsg, []byte(sv.cfg.SecretKey))
 	if err != nil {
 		listenConn.Close()
-		xl.Warn("make hole error: %v", err)
+		xl.Warnf("make hole error: %v", err)
 		return
 	}
 	listenConn = newListenConn
-	xl.Info("establishing nat hole connection successful, sid [%s], remoteAddr [%s]", natHoleRespMsg.Sid, raddr)
+	xl.Infof("establishing nat hole connection successful, sid [%s], remoteAddr [%s]", natHoleRespMsg.Sid, raddr)
 
 	if err := sv.session.Init(listenConn, raddr); err != nil {
 		listenConn.Close()
-		xl.Warn("init tunnel session error: %v", err)
+		xl.Warnf("init tunnel session error: %v", err)
 		return
 	}
 }
@@ -349,7 +353,7 @@ func (ks *KCPTunnelSession) Init(listenConn *net.UDPConn, raddr *net.UDPAddr) er
 	if err != nil {
 		return fmt.Errorf("dial udp error: %v", err)
 	}
-	remote, err := utilnet.NewKCPConnFromUDP(lConn, true, raddr.String())
+	remote, err := netpkg.NewKCPConnFromUDP(lConn, true, raddr.String())
 	if err != nil {
 		return fmt.Errorf("create kcp connection from udp connection error: %v", err)
 	}
@@ -440,7 +444,7 @@ func (qs *QUICTunnelSession) OpenConn(ctx context.Context) (net.Conn, error) {
 	if err != nil {
 		return nil, err
 	}
-	return utilnet.QuicStreamToNetConn(stream, session), nil
+	return netpkg.QuicStreamToNetConn(stream, session), nil
 }
 
 func (qs *QUICTunnelSession) Close() {

cmd/frpc/main.go

@@ -17,8 +17,10 @@ package main
 import (
 	_ "github.com/fatedier/frp/assets/frpc"
 	"github.com/fatedier/frp/cmd/frpc/sub"
+	"github.com/fatedier/frp/pkg/util/system"
 )
 
 func main() {
+	system.EnableCompatibilityMode()
 	sub.Execute()
 }

cmd/frpc/sub/admin.go

@@ -15,9 +15,11 @@
 package sub
 
 import (
+	"context"
 	"fmt"
 	"os"
 	"strings"
+	"time"
 
 	"github.com/rodaine/table"
 	"github.com/spf13/cobra"
@@ -27,24 +29,24 @@ import (
 	clientsdk "github.com/fatedier/frp/pkg/sdk/client"
 )
 
+var adminAPITimeout = 30 * time.Second
+
 func init() {
-	rootCmd.AddCommand(NewAdminCommand(
-		"reload",
-		"Hot-Reload frpc configuration",
-		ReloadHandler,
-	))
+	commands := []struct {
+		name        string
+		description string
+		handler     func(*v1.ClientCommonConfig) error
+	}{
+		{"reload", "Hot-Reload frpc configuration", ReloadHandler},
+		{"status", "Overview of all proxies status", StatusHandler},
+		{"stop", "Stop the running frpc", StopHandler},
+	}
 
-	rootCmd.AddCommand(NewAdminCommand(
-		"status",
-		"Overview of all proxies status",
-		StatusHandler,
-	))
-
-	rootCmd.AddCommand(NewAdminCommand(
-		"stop",
-		"Stop the running frpc",
-		StopHandler,
-	))
+	for _, cmdConfig := range commands {
+		cmd := NewAdminCommand(cmdConfig.name, cmdConfig.description, cmdConfig.handler)
+		cmd.Flags().DurationVar(&adminAPITimeout, "api-timeout", adminAPITimeout, "Timeout for admin API calls")
+		rootCmd.AddCommand(cmd)
+	}
 }
 
 func NewAdminCommand(name, short string, handler func(*v1.ClientCommonConfig) error) *cobra.Command {
@@ -52,7 +54,7 @@ func NewAdminCommand(name, short string, handler func(*v1.ClientCommonConfig) er
 		Use:   name,
 		Short: short,
 		Run: func(cmd *cobra.Command, args []string) {
-			cfg, _, _, _, err := config.LoadClientConfig(cfgFile)
+			cfg, _, _, _, err := config.LoadClientConfig(cfgFile, strictConfigMode)
 			if err != nil {
 				fmt.Println(err)
 				os.Exit(1)
@@ -73,7 +75,9 @@ func NewAdminCommand(name, short string, handler func(*v1.ClientCommonConfig) er
 func ReloadHandler(clientCfg *v1.ClientCommonConfig) error {
 	client := clientsdk.New(clientCfg.WebServer.Addr, clientCfg.WebServer.Port)
 	client.SetAuth(clientCfg.WebServer.User, clientCfg.WebServer.Password)
-	if err := client.Reload(); err != nil {
+	ctx, cancel := context.WithTimeout(context.Background(), adminAPITimeout)
+	defer cancel()
+	if err := client.Reload(ctx, strictConfigMode); err != nil {
 		return err
 	}
 	fmt.Println("reload success")
@@ -83,7 +87,9 @@ func ReloadHandler(clientCfg *v1.ClientCommonConfig) error {
 func StatusHandler(clientCfg *v1.ClientCommonConfig) error {
 	client := clientsdk.New(clientCfg.WebServer.Addr, clientCfg.WebServer.Port)
 	client.SetAuth(clientCfg.WebServer.User, clientCfg.WebServer.Password)
-	res, err := client.GetAllProxyStatus()
+	ctx, cancel := context.WithTimeout(context.Background(), adminAPITimeout)
+	defer cancel()
+	res, err := client.GetAllProxyStatus(ctx)
 	if err != nil {
 		return err
 	}
@@ -109,7 +115,9 @@ func StatusHandler(clientCfg *v1.ClientCommonConfig) error {
 func StopHandler(clientCfg *v1.ClientCommonConfig) error {
 	client := clientsdk.New(clientCfg.WebServer.Addr, clientCfg.WebServer.Port)
 	client.SetAuth(clientCfg.WebServer.User, clientCfg.WebServer.Password)
-	if err := client.Stop(); err != nil {
+	ctx, cancel := context.WithTimeout(context.Background(), adminAPITimeout)
+	defer cancel()
+	if err := client.Stop(ctx); err != nil {
 		return err
 	}
 	fmt.Println("stop success")

cmd/frpc/sub/flags.go

@@ -1,125 +0,0 @@
-// Copyright 2023 The frp Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package sub
-
-import (
-	"fmt"
-
-	"github.com/spf13/cobra"
-
-	"github.com/fatedier/frp/pkg/config/types"
-	v1 "github.com/fatedier/frp/pkg/config/v1"
-	"github.com/fatedier/frp/pkg/config/v1/validation"
-)
-
-type BandwidthQuantityFlag struct {
-	V *types.BandwidthQuantity
-}
-
-func (f *BandwidthQuantityFlag) Set(s string) error {
-	return f.V.UnmarshalString(s)
-}
-
-func (f *BandwidthQuantityFlag) String() string {
-	return f.V.String()
-}
-
-func (f *BandwidthQuantityFlag) Type() string {
-	return "string"
-}
-
-func RegisterProxyFlags(cmd *cobra.Command, c v1.ProxyConfigurer) {
-	registerProxyBaseConfigFlags(cmd, c.GetBaseConfig())
-	switch cc := c.(type) {
-	case *v1.TCPProxyConfig:
-		cmd.Flags().IntVarP(&cc.RemotePort, "remote_port", "r", 0, "remote port")
-	case *v1.UDPProxyConfig:
-		cmd.Flags().IntVarP(&cc.RemotePort, "remote_port", "r", 0, "remote port")
-	case *v1.HTTPProxyConfig:
-		registerProxyDomainConfigFlags(cmd, &cc.DomainConfig)
-		cmd.Flags().StringSliceVarP(&cc.Locations, "locations", "", []string{}, "locations")
-		cmd.Flags().StringVarP(&cc.HTTPUser, "http_user", "", "", "http auth user")
-		cmd.Flags().StringVarP(&cc.HTTPPassword, "http_pwd", "", "", "http auth password")
-		cmd.Flags().StringVarP(&cc.HostHeaderRewrite, "host_header_rewrite", "", "", "host header rewrite")
-	case *v1.HTTPSProxyConfig:
-		registerProxyDomainConfigFlags(cmd, &cc.DomainConfig)
-	case *v1.TCPMuxProxyConfig:
-		registerProxyDomainConfigFlags(cmd, &cc.DomainConfig)
-		cmd.Flags().StringVarP(&cc.Multiplexer, "mux", "", "", "multiplexer")
-	case *v1.STCPProxyConfig:
-		cmd.Flags().StringVarP(&cc.Secretkey, "sk", "", "", "secret key")
-	case *v1.SUDPProxyConfig:
-		cmd.Flags().StringVarP(&cc.Secretkey, "sk", "", "", "secret key")
-	case *v1.XTCPProxyConfig:
-		cmd.Flags().StringVarP(&cc.Secretkey, "sk", "", "", "secret key")
-	}
-}
-
-func registerProxyBaseConfigFlags(cmd *cobra.Command, c *v1.ProxyBaseConfig) {
-	if c == nil {
-		return
-	}
-	cmd.Flags().StringVarP(&c.Name, "proxy_name", "n", "", "proxy name")
-	cmd.Flags().StringVarP(&c.LocalIP, "local_ip", "i", "127.0.0.1", "local ip")
-	cmd.Flags().IntVarP(&c.LocalPort, "local_port", "l", 0, "local port")
-	cmd.Flags().BoolVarP(&c.Transport.UseEncryption, "ue", "", false, "use encryption")
-	cmd.Flags().BoolVarP(&c.Transport.UseCompression, "uc", "", false, "use compression")
-	cmd.Flags().StringVarP(&c.Transport.BandwidthLimitMode, "bandwidth_limit_mode", "", types.BandwidthLimitModeClient, "bandwidth limit mode")
-	cmd.Flags().VarP(&BandwidthQuantityFlag{V: &c.Transport.BandwidthLimit}, "bandwidth_limit", "", "bandwidth limit (e.g. 100KB or 1MB)")
-}
-
-func registerProxyDomainConfigFlags(cmd *cobra.Command, c *v1.DomainConfig) {
-	if c == nil {
-		return
-	}
-	cmd.Flags().StringSliceVarP(&c.CustomDomains, "custom_domain", "d", []string{}, "custom domains")
-	cmd.Flags().StringVarP(&c.SubDomain, "sd", "", "", "sub domain")
-}
-
-func RegisterVisitorFlags(cmd *cobra.Command, c v1.VisitorConfigurer) {
-	registerVisitorBaseConfigFlags(cmd, c.GetBaseConfig())
-
-	// add visitor flags if exist
-}
-
-func registerVisitorBaseConfigFlags(cmd *cobra.Command, c *v1.VisitorBaseConfig) {
-	if c == nil {
-		return
-	}
-	cmd.Flags().StringVarP(&c.Name, "visitor_name", "n", "", "visitor name")
-	cmd.Flags().BoolVarP(&c.Transport.UseEncryption, "ue", "", false, "use encryption")
-	cmd.Flags().BoolVarP(&c.Transport.UseCompression, "uc", "", false, "use compression")
-	cmd.Flags().StringVarP(&c.SecretKey, "sk", "", "", "secret key")
-	cmd.Flags().StringVarP(&c.ServerName, "server_name", "", "", "server name")
-	cmd.Flags().StringVarP(&c.BindAddr, "bind_addr", "", "", "bind addr")
-	cmd.Flags().IntVarP(&c.BindPort, "bind_port", "", 0, "bind port")
-}
-
-func RegisterClientCommonConfigFlags(cmd *cobra.Command, c *v1.ClientCommonConfig) {
-	cmd.PersistentFlags().StringVarP(&c.ServerAddr, "server_addr", "s", "127.0.0.1", "frp server's address")
-	cmd.PersistentFlags().IntVarP(&c.ServerPort, "server_port", "P", 7000, "frp server's port")
-	cmd.PersistentFlags().StringVarP(&c.User, "user", "u", "", "user")
-	cmd.PersistentFlags().StringVarP(&c.Transport.Protocol, "protocol", "p", "tcp",
-		fmt.Sprintf("optional values are %v", validation.SupportedTransportProtocols))
-	cmd.PersistentFlags().StringVarP(&c.Auth.Token, "token", "t", "", "auth token")
-	cmd.PersistentFlags().StringVarP(&c.Log.Level, "log_level", "", "info", "log level")
-	cmd.PersistentFlags().StringVarP(&c.Log.To, "log_file", "", "console", "console or file path")
-	cmd.PersistentFlags().Int64VarP(&c.Log.MaxDays, "log_max_days", "", 3, "log file reversed days")
-	cmd.PersistentFlags().BoolVarP(&c.Log.DisablePrintColor, "disable_log_color", "", false, "disable log color in console")
-	cmd.PersistentFlags().StringVarP(&c.Transport.TLS.ServerName, "tls_server_name", "", "", "specify the custom server name of tls certificate")
-	cmd.PersistentFlags().StringVarP(&c.DNSServer, "dns_server", "", "", "specify dns server instead of using system default one")
-
-	c.Transport.TLS.Enable = cmd.PersistentFlags().BoolP("tls_enable", "", true, "enable frpc tls")
-}

cmd/frpc/sub/nathole.go

@@ -48,9 +48,10 @@ var natholeDiscoveryCmd = &cobra.Command{
 	Short: "Discover nathole information from stun server",
 	RunE: func(cmd *cobra.Command, args []string) error {
 		// ignore error here, because we can use command line pameters
-		cfg, _, _, _, err := config.LoadClientConfig(cfgFile)
+		cfg, _, _, _, err := config.LoadClientConfig(cfgFile, strictConfigMode)
 		if err != nil {
 			cfg = &v1.ClientCommonConfig{}
+			cfg.Complete()
 		}
 		if natHoleSTUNServer != "" {
 			cfg.NatHoleSTUNServer = natHoleSTUNServer

cmd/frpc/sub/proxy.go

@@ -17,10 +17,11 @@ package sub
 import (
 	"fmt"
 	"os"
+	"slices"
 
-	"github.com/samber/lo"
 	"github.com/spf13/cobra"
 
+	"github.com/fatedier/frp/pkg/config"
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 	"github.com/fatedier/frp/pkg/config/v1/validation"
 )
@@ -50,17 +51,17 @@ func init() {
 		}
 		clientCfg := v1.ClientCommonConfig{}
 		cmd := NewProxyCommand(string(typ), c, &clientCfg)
-		RegisterClientCommonConfigFlags(cmd, &clientCfg)
-		RegisterProxyFlags(cmd, c)
+		config.RegisterClientCommonConfigFlags(cmd, &clientCfg)
+		config.RegisterProxyFlags(cmd, c)
 
 		// add sub command for visitor
-		if lo.Contains(visitorTypes, v1.VisitorType(typ)) {
+		if slices.Contains(visitorTypes, v1.VisitorType(typ)) {
 			vc := v1.NewVisitorConfigurerByType(v1.VisitorType(typ))
 			if vc == nil {
 				panic("visitor type: " + typ + " not support")
 			}
 			visitorCmd := NewVisitorCommand(string(typ), vc, &clientCfg)
-			RegisterVisitorFlags(visitorCmd, vc)
+			config.RegisterVisitorFlags(visitorCmd, vc)
 			cmd.AddCommand(visitorCmd)
 		}
 		rootCmd.AddCommand(cmd)

cmd/frpc/sub/root.go

@@ -31,20 +31,23 @@ import (
 	"github.com/fatedier/frp/pkg/config"
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 	"github.com/fatedier/frp/pkg/config/v1/validation"
+	"github.com/fatedier/frp/pkg/featuregate"
 	"github.com/fatedier/frp/pkg/util/log"
 	"github.com/fatedier/frp/pkg/util/version"
 )
 
 var (
-	cfgFile     string
-	cfgDir      string
-	showVersion bool
+	cfgFile          string
+	cfgDir           string
+	showVersion      bool
+	strictConfigMode bool
 )
 
 func init() {
 	rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "./frpc.ini", "config file of frpc")
 	rootCmd.PersistentFlags().StringVarP(&cfgDir, "config_dir", "", "", "config directory, run one frpc service for each file in config directory")
 	rootCmd.PersistentFlags().BoolVarP(&showVersion, "version", "v", false, "version of frpc")
+	rootCmd.PersistentFlags().BoolVarP(&strictConfigMode, "strict_config", "", true, "strict config parsing mode, unknown fields will cause an errors")
 }
 
 var rootCmd = &cobra.Command{
@@ -95,6 +98,7 @@ func runMultipleClients(cfgDir string) error {
 }
 
 func Execute() {
+	rootCmd.SetGlobalNormalizationFunc(config.WordSepNormalizeFunc)
 	if err := rootCmd.Execute(); err != nil {
 		os.Exit(1)
 	}
@@ -108,7 +112,7 @@ func handleTermSignal(svr *client.Service) {
 }
 
 func runClient(cfgFilePath string) error {
-	cfg, pxyCfgs, visitorCfgs, isLegacyFormat, err := config.LoadClientConfig(cfgFilePath)
+	cfg, proxyCfgs, visitorCfgs, isLegacyFormat, err := config.LoadClientConfig(cfgFilePath, strictConfigMode)
 	if err != nil {
 		return err
 	}
@@ -117,29 +121,40 @@ func runClient(cfgFilePath string) error {
 			"please use yaml/json/toml format instead!\n")
 	}
 
-	warning, err := validation.ValidateAllClientConfig(cfg, pxyCfgs, visitorCfgs)
+	if len(cfg.FeatureGates) > 0 {
+		if err := featuregate.SetFromMap(cfg.FeatureGates); err != nil {
+			return err
+		}
+	}
+
+	warning, err := validation.ValidateAllClientConfig(cfg, proxyCfgs, visitorCfgs)
 	if warning != nil {
 		fmt.Printf("WARNING: %v\n", warning)
 	}
 	if err != nil {
 		return err
 	}
-	return startService(cfg, pxyCfgs, visitorCfgs, cfgFilePath)
+	return startService(cfg, proxyCfgs, visitorCfgs, cfgFilePath)
 }
 
 func startService(
 	cfg *v1.ClientCommonConfig,
-	pxyCfgs []v1.ProxyConfigurer,
+	proxyCfgs []v1.ProxyConfigurer,
 	visitorCfgs []v1.VisitorConfigurer,
 	cfgFile string,
 ) error {
-	log.InitLog(cfg.Log.To, cfg.Log.Level, cfg.Log.MaxDays, cfg.Log.DisablePrintColor)
+	log.InitLogger(cfg.Log.To, cfg.Log.Level, int(cfg.Log.MaxDays), cfg.Log.DisablePrintColor)
 
 	if cfgFile != "" {
-		log.Info("start frpc service for config file [%s]", cfgFile)
-		defer log.Info("frpc service for config file [%s] stopped", cfgFile)
+		log.Infof("start frpc service for config file [%s]", cfgFile)
+		defer log.Infof("frpc service for config file [%s] stopped", cfgFile)
 	}
-	svr, err := client.NewService(cfg, pxyCfgs, visitorCfgs, cfgFile)
+	svr, err := client.NewService(client.ServiceOptions{
+		Common:         cfg,
+		ProxyCfgs:      proxyCfgs,
+		VisitorCfgs:    visitorCfgs,
+		ConfigFilePath: cfgFile,
+	})
 	if err != nil {
 		return err
 	}
@@ -149,7 +164,5 @@ func startService(
 	if shouldGracefulClose {
 		go handleTermSignal(svr)
 	}
-
-	_ = svr.Run(context.Background())
-	return nil
+	return svr.Run(context.Background())
 }

cmd/frpc/sub/verify.go

@@ -37,12 +37,12 @@ var verifyCmd = &cobra.Command{
 			return nil
 		}
 
-		cliCfg, pxyCfgs, visitorCfgs, _, err := config.LoadClientConfig(cfgFile)
+		cliCfg, proxyCfgs, visitorCfgs, _, err := config.LoadClientConfig(cfgFile, strictConfigMode)
 		if err != nil {
 			fmt.Println(err)
 			os.Exit(1)
 		}
-		warning, err := validation.ValidateAllClientConfig(cliCfg, pxyCfgs, visitorCfgs)
+		warning, err := validation.ValidateAllClientConfig(cliCfg, proxyCfgs, visitorCfgs)
 		if warning != nil {
 			fmt.Printf("WARNING: %v\n", warning)
 		}

cmd/frps/flags.go

@@ -1,110 +0,0 @@
-// Copyright 2023 The frp Authors
-//
-// Licensed under the Apache License, Version 2.0 (the "License");
-// you may not use this file except in compliance with the License.
-// You may obtain a copy of the License at
-//
-//     http://www.apache.org/licenses/LICENSE-2.0
-//
-// Unless required by applicable law or agreed to in writing, software
-// distributed under the License is distributed on an "AS IS" BASIS,
-// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
-// See the License for the specific language governing permissions and
-// limitations under the License.
-
-package main
-
-import (
-	"strconv"
-
-	"github.com/spf13/cobra"
-
-	"github.com/fatedier/frp/pkg/config/types"
-	v1 "github.com/fatedier/frp/pkg/config/v1"
-)
-
-type PortsRangeSliceFlag struct {
-	V *[]types.PortsRange
-}
-
-func (f *PortsRangeSliceFlag) String() string {
-	if f.V == nil {
-		return ""
-	}
-	return types.PortsRangeSlice(*f.V).String()
-}
-
-func (f *PortsRangeSliceFlag) Set(s string) error {
-	slice, err := types.NewPortsRangeSliceFromString(s)
-	if err != nil {
-		return err
-	}
-	*f.V = slice
-	return nil
-}
-
-func (f *PortsRangeSliceFlag) Type() string {
-	return "string"
-}
-
-type BoolFuncFlag struct {
-	TrueFunc  func()
-	FalseFunc func()
-
-	v bool
-}
-
-func (f *BoolFuncFlag) String() string {
-	return strconv.FormatBool(f.v)
-}
-
-func (f *BoolFuncFlag) Set(s string) error {
-	f.v = strconv.FormatBool(f.v) == "true"
-
-	if !f.v {
-		if f.FalseFunc != nil {
-			f.FalseFunc()
-		}
-		return nil
-	}
-
-	if f.TrueFunc != nil {
-		f.TrueFunc()
-	}
-	return nil
-}
-
-func (f *BoolFuncFlag) Type() string {
-	return "bool"
-}
-
-func RegisterServerConfigFlags(cmd *cobra.Command, c *v1.ServerConfig) {
-	cmd.PersistentFlags().StringVarP(&c.BindAddr, "bind_addr", "", "0.0.0.0", "bind address")
-	cmd.PersistentFlags().IntVarP(&c.BindPort, "bind_port", "p", 7000, "bind port")
-	cmd.PersistentFlags().IntVarP(&c.KCPBindPort, "kcp_bind_port", "", 0, "kcp bind udp port")
-	cmd.PersistentFlags().StringVarP(&c.ProxyBindAddr, "proxy_bind_addr", "", "0.0.0.0", "proxy bind address")
-	cmd.PersistentFlags().IntVarP(&c.VhostHTTPPort, "vhost_http_port", "", 0, "vhost http port")
-	cmd.PersistentFlags().IntVarP(&c.VhostHTTPSPort, "vhost_https_port", "", 0, "vhost https port")
-	cmd.PersistentFlags().Int64VarP(&c.VhostHTTPTimeout, "vhost_http_timeout", "", 60, "vhost http response header timeout")
-	cmd.PersistentFlags().StringVarP(&c.WebServer.Addr, "dashboard_addr", "", "0.0.0.0", "dashboard address")
-	cmd.PersistentFlags().IntVarP(&c.WebServer.Port, "dashboard_port", "", 0, "dashboard port")
-	cmd.PersistentFlags().StringVarP(&c.WebServer.User, "dashboard_user", "", "admin", "dashboard user")
-	cmd.PersistentFlags().StringVarP(&c.WebServer.Password, "dashboard_pwd", "", "admin", "dashboard password")
-	cmd.PersistentFlags().BoolVarP(&c.EnablePrometheus, "enable_prometheus", "", false, "enable prometheus dashboard")
-	cmd.PersistentFlags().StringVarP(&c.Log.To, "log_file", "", "console", "log file")
-	cmd.PersistentFlags().StringVarP(&c.Log.Level, "log_level", "", "info", "log level")
-	cmd.PersistentFlags().Int64VarP(&c.Log.MaxDays, "log_max_days", "", 3, "log max days")
-	cmd.PersistentFlags().BoolVarP(&c.Log.DisablePrintColor, "disable_log_color", "", false, "disable log color in console")
-	cmd.PersistentFlags().StringVarP(&c.Auth.Token, "token", "t", "", "auth token")
-	cmd.PersistentFlags().StringVarP(&c.SubDomainHost, "subdomain_host", "", "", "subdomain host")
-	cmd.PersistentFlags().VarP(&PortsRangeSliceFlag{V: &c.AllowPorts}, "allow_ports", "", "allow ports")
-	cmd.PersistentFlags().Int64VarP(&c.MaxPortsPerClient, "max_ports_per_client", "", 0, "max ports per client")
-	cmd.PersistentFlags().BoolVarP(&c.Transport.TLS.Force, "tls_only", "", false, "frps tls only")
-
-	webServerTLS := v1.TLSConfig{}
-	cmd.PersistentFlags().StringVarP(&webServerTLS.CertFile, "dashboard_tls_cert_file", "", "", "dashboard tls cert file")
-	cmd.PersistentFlags().StringVarP(&webServerTLS.KeyFile, "dashboard_tls_key_file", "", "", "dashboard tls key file")
-	cmd.PersistentFlags().VarP(&BoolFuncFlag{
-		TrueFunc: func() { c.WebServer.TLS = &webServerTLS },
-	}, "dashboard_tls_mode", "", "if enable dashboard tls mode")
-}

cmd/frps/main.go

@@ -15,13 +15,12 @@
 package main
 
 import (
-	"github.com/fatedier/golib/crypto"
-
 	_ "github.com/fatedier/frp/assets/frps"
 	_ "github.com/fatedier/frp/pkg/metrics"
+	"github.com/fatedier/frp/pkg/util/system"
 )
 
 func main() {
-	crypto.DefaultSalt = "frp"
+	system.EnableCompatibilityMode()
 	Execute()
 }

cmd/frps/root.go

@@ -30,8 +30,9 @@ import (
 )
 
 var (
-	cfgFile     string
-	showVersion bool
+	cfgFile          string
+	showVersion      bool
+	strictConfigMode bool
 
 	serverCfg v1.ServerConfig
 )
@@ -39,8 +40,9 @@ var (
 func init() {
 	rootCmd.PersistentFlags().StringVarP(&cfgFile, "config", "c", "", "config file of frps")
 	rootCmd.PersistentFlags().BoolVarP(&showVersion, "version", "v", false, "version of frps")
+	rootCmd.PersistentFlags().BoolVarP(&strictConfigMode, "strict_config", "", true, "strict config parsing mode, unknown fields will cause errors")
 
-	RegisterServerConfigFlags(rootCmd, &serverCfg)
+	config.RegisterServerConfigFlags(rootCmd, &serverCfg)
 }
 
 var rootCmd = &cobra.Command{
@@ -58,7 +60,7 @@ var rootCmd = &cobra.Command{
 			err            error
 		)
 		if cfgFile != "" {
-			svrCfg, isLegacyFormat, err = config.LoadServerConfig(cfgFile)
+			svrCfg, isLegacyFormat, err = config.LoadServerConfig(cfgFile, strictConfigMode)
 			if err != nil {
 				fmt.Println(err)
 				os.Exit(1)
@@ -90,25 +92,26 @@ var rootCmd = &cobra.Command{
 }
 
 func Execute() {
+	rootCmd.SetGlobalNormalizationFunc(config.WordSepNormalizeFunc)
 	if err := rootCmd.Execute(); err != nil {
 		os.Exit(1)
 	}
 }
 
 func runServer(cfg *v1.ServerConfig) (err error) {
-	log.InitLog(cfg.Log.To, cfg.Log.Level, cfg.Log.MaxDays, cfg.Log.DisablePrintColor)
+	log.InitLogger(cfg.Log.To, cfg.Log.Level, int(cfg.Log.MaxDays), cfg.Log.DisablePrintColor)
 
 	if cfgFile != "" {
-		log.Info("frps uses config file: %s", cfgFile)
+		log.Infof("frps uses config file: %s", cfgFile)
 	} else {
-		log.Info("frps uses command line arguments for config")
+		log.Infof("frps uses command line arguments for config")
 	}
 
 	svr, err := server.NewService(cfg)
 	if err != nil {
 		return err
 	}
-	log.Info("frps started successfully")
+	log.Infof("frps started successfully")
 	svr.Run(context.Background())
 	return
 }

cmd/frps/verify.go

@@ -36,7 +36,7 @@ var verifyCmd = &cobra.Command{
 			fmt.Println("frps: the configuration file is not specified")
 			return nil
 		}
-		svrCfg, _, err := config.LoadServerConfig(cfgFile)
+		svrCfg, _, err := config.LoadServerConfig(cfgFile, strictConfigMode)
 		if err != nil {
 			fmt.Println(err)
 			os.Exit(1)

conf/frpc.toml

@@ -1,361 +1,9 @@
-# This configuration file is for reference only. Please do not use this configuration directly to run the program as it may have various issues.
-
-# your proxy name will be changed to {user}.{proxy}
-user = "your_name"
-
-# A literal address or host name for IPv6 must be enclosed
-# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
-# For single serverAddr field, no need square brackets, like serverAddr = "::".
-serverAddr = "0.0.0.0"
+serverAddr = "127.0.0.1"
 serverPort = 7000
 
-# STUN server to help penetrate NAT hole.
-# natHoleStunServer = "stun.easyvoip.com:3478"
-
-# Decide if exit program when first login failed, otherwise continuous relogin to frps
-# default is true
-loginFailExit = true
-
-# console or real logFile path like ./frpc.log
-log.to = "./frpc.log"
-# trace, debug, info, warn, error
-log.level = "info"
-log.maxDays = 3
-# disable log colors when log.to is console, default is false
-log.disablePrintColor = false
-
-auth.method = "token"
-# auth.additionalScopes specifies additional scopes to include authentication information.
-# Optional values are HeartBeats, NewWorkConns.
-# auth.additionalScopes = ["HeartBeats", "NewWorkConns"]
-
-# auth token
-auth.token = "12345678"
-
-# oidc.clientID specifies the client ID to use to get a token in OIDC authentication.
-# auth.oidc.clientID = ""
-# oidc.clientSecret specifies the client secret to use to get a token in OIDC authentication.
-# auth.oidc.clientSecret = ""
-# oidc.audience specifies the audience of the token in OIDC authentication.
-# auth.oidc.audience = ""
-# oidc.scope specifies the permisssions of the token in OIDC authentication if AuthenticationMethod == "oidc". By default, this value is "".
-# auth.oidc.scope = ""
-# oidc.tokenEndpointURL specifies the URL which implements OIDC Token Endpoint.
-# It will be used to get an OIDC token.
-# auth.oidc.tokenEndpointURL = ""
-
-# oidc.additionalEndpointParams specifies additional parameters to be sent to the OIDC Token Endpoint.
-# For example, if you want to specify the "audience" parameter, you can set as follow.
-# frp will add "audience=<value>" "var1=<value>" to the additional parameters.
-# auth.oidc.additionalEndpointParams.audience = "https://dev.auth.com/api/v2/"
-# auth.oidc.additionalEndpointParams.var1 = "foobar"
-
-# Set admin address for control frpc's action by http api such as reload
-webServer.addr = "127.0.0.1"
-webServer.port = 7400
-webServer.user = "admin"
-webServer.password = "admin"
-# Admin assets directory. By default, these assets are bundled with frpc.
-# webServer.assetsDir = "./static"
-
-# Enable golang pprof handlers in admin listener.
-webServer.pprofEnable = false
-
-# The maximum amount of time a dial to server will wait for a connect to complete. Default value is 10 seconds.
-# transport.dialServerTimeout = 10
-
-# dialServerKeepalive specifies the interval between keep-alive probes for an active network connection between frpc and frps.
-# If negative, keep-alive probes are disabled.
-# transport.dialServerKeepalive = 7200
-
-# connections will be established in advance, default value is zero
-transport.poolCount = 5
-
-# If tcp stream multiplexing is used, default is true, it must be same with frps
-# transport.tcpMux = true
-
-# Specify keep alive interval for tcp mux.
-# only valid if tcpMux is enabled.
-# transport.tcpMuxKeepaliveInterval = 60
-
-# Communication protocol used to connect to server
-# supports tcp, kcp, quic, websocket and wss now, default is tcp
-transport.protocol = "tcp"
-
-# set client binding ip when connect server, default is empty.
-# only when protocol = tcp or websocket, the value will be used.
-transport.connectServerLocalIP = "0.0.0.0"
-
-# if you want to connect frps by http proxy or socks5 proxy or ntlm proxy, you can set proxyURL here or in global environment variables
-# it only works when protocol is tcp
-# transport.proxyURL = "http://user:passwd@192.168.1.128:8080"
-# transport.proxyURL = "socks5://user:passwd@192.168.1.128:1080"
-# transport.proxyURL = "ntlm://user:passwd@192.168.1.128:2080"
-
-# quic protocol options
-# transport.quic.keepalivePeriod = 10
-# transport.quic.maxIdleTimeout = 30
-# transport.quic.maxIncomingStreams = 100000
-
-# If tls.enable is true, frpc will connect frps by tls.
-# Since v0.50.0, the default value has been changed to true, and tls is enabled by default.
-transport.tls.enable = true
-
-# transport.tls.certFile = "client.crt"
-# transport.tls.keyFile = "client.key"
-# transport.tls.trustedCaFile = "ca.crt"
-# transport.tls.serverName = "example.com"
-
-# If the disableCustomTLSFirstByte is set to false, frpc will establish a connection with frps using the
-# first custom byte when tls is enabled.
-# Since v0.50.0, the default value has been changed to true, and the first custom byte is disabled by default.
-# transport.tls.disableCustomTLSFirstByte = true
-
-# Heartbeat configure, it's not recommended to modify the default value.
-# The default value of heartbeatInterval is 10 and heartbeatTimeout is 90. Set negative value
-# to disable it.
-# transport.heartbeatInterval = 30
-# transport.heartbeatTimeout = 90
-
-# Specify a dns server, so frpc will use this instead of default one
-# dnsServer = "8.8.8.8"
-
-# Proxy names you want to start.
-# Default is empty, means all proxies.
-# start = ["ssh", "dns"]
-
-# Specify udp packet size, unit is byte. If not set, the default value is 1500.
-# This parameter should be same between client and server.
-# It affects the udp and sudp proxy.
-udpPacketSize = 1500
-
-# Additional metadatas for client.
-metadatas.var1 = "abc"
-metadatas.var2 = "123"
-
-# Include other config files for proxies.
-# includes = ["./confd/*.ini"]
-
 [[proxies]]
-# 'ssh' is the unique proxy name
-# If global user is not empty, it will be changed to {user}.{proxy} such as 'your_name.ssh'
-name = "ssh"
+name = "test-tcp"
 type = "tcp"
 localIP = "127.0.0.1"
 localPort = 22
-# Limit bandwidth for this proxy, unit is KB and MB
-transport.bandwidthLimit = "1MB"
-# Where to limit bandwidth, can be 'client' or 'server', default is 'client'
-transport.bandwidthLimitMode = "client"
-# If true, traffic of this proxy will be encrypted, default is false
-transport.useEncryption = false
-# If true, traffic will be compressed
-transport.useCompression = false
-# Remote port listen by frps
-remotePort = 6001
-# frps will load balancing connections for proxies in same group
-loadBalancer.group = "test_group"
-# group should have same group key
-loadBalancer.groupKey = "123456"
-# Enable health check for the backend service, it supports 'tcp' and 'http' now.
-# frpc will connect local service's port to detect it's healthy status
-healthCheck.type = "tcp"
-# Health check connection timeout
-healthCheck.timeoutSeconds = 3
-# If continuous failed in 3 times, the proxy will be removed from frps
-healthCheck.maxFailed = 3
-# every 10 seconds will do a health check
-healthCheck.intervalSeconds = 10
-# additional meta info for each proxy
-metadatas.var1 = "abc"
-metadatas.var2 = "123"
-
-[[proxies]]
-name = "ssh_random"
-type = "tcp"
-localIP = "192.168.31.100"
-localPort = 22
-# If remotePort is 0, frps will assign a random port for you
-remotePort = 0
-
-[[proxies]]
-name = "dns"
-type = "udp"
-localIP = "114.114.114.114"
-localPort = 53
-remotePort = 6002
-
-# Resolve your domain names to [serverAddr] so you can use http://web01.yourdomain.com to browse web01 and http://web02.yourdomain.com to browse web02
-[[proxies]]
-name = "web01"
-type = "http"
-localIP = "127.0.0.1"
-localPort = 80
-# http username and password are safety certification for http protocol
-# if not set, you can access this customDomains without certification
-httpUser = "admin"
-httpPassword = "admin"
-# if domain for frps is frps.com, then you can access [web01] proxy by URL http://web01.frps.com
-subdomain = "web01"
-customDomains = ["web01.yourdomain.com"]
-# locations is only available for http type
-locations = ["/", "/pic"]
-# route requests to this service if http basic auto user is abc
-# routeByHTTPUser = abc
-hostHeaderRewrite = "example.com"
-requestHeaders.set.x-from-where = "frp"
-healthCheck.type = "http"
-# frpc will send a GET http request '/status' to local http service
-# http service is alive when it return 2xx http response code
-healthCheck.path = "/status"
-healthCheck.intervalSeconds = 10
-healthCheck.maxFailed = 3
-healthCheck.timeoutSeconds = 3
-
-[[proxies]]
-name = "web02"
-type = "https"
-localIP = "127.0.0.1"
-localPort = 8000
-subdomain = "web02"
-customDomains = ["web02.yourdomain.com"]
-# if not empty, frpc will use proxy protocol to transfer connection info to your local service
-# v1 or v2 or empty
-transport.proxyProtocolVersion = "v2"
-
-[[proxies]]
-name = "tcpmuxhttpconnect"
-type = "tcpmux"
-multiplexer = "httpconnect"
-localIP = "127.0.0.1"
-localPort = 10701
-customDomains = ["tunnel1"]
-# routeByHTTPUser = "user1"
-
-[[proxies]]
-name = "plugin_unix_domain_socket"
-type = "tcp"
-remotePort = 6003
-# if plugin is defined, localIP and localPort is useless
-# plugin will handle connections got from frps
-[proxies.plugin]
-type = "unix_domain_socket"
-unixPath = "/var/run/docker.sock"
-
-[[proxies]]
-name = "plugin_http_proxy"
-type = "tcp"
-remotePort = 6004
-[proxies.plugin]
-type = "http_proxy"
-httpUser = "abc"
-httpPassword = "abc"
-
-[[proxies]]
-name = "plugin_socks5"
-type = "tcp"
-remotePort = 6005
-[proxies.plugin]
-type = "socks5"
-username = "abc"
-password = "abc"
-
-[[proxies]]
-name = "plugin_static_file"
-type = "tcp"
-remotePort = 6006
-[proxies.plugin]
-type = "static_file"
-localPath = "/var/www/blog"
-stripPrefix = "static"
-httpUser = "abc"
-httpPassword = "abc"
-
-[[proxies]]
-name = "plugin_https2http"
-type = "https"
-customDomains = ["test.yourdomain.com"]
-[proxies.plugin]
-type = "https2http"
-localAddr = "127.0.0.1:80"
-crtPath = "./server.crt"
-keyPath = "./server.key"
-hostHeaderRewrite = "127.0.0.1"
-requestHeaders.set.x-from-where = "frp"
-
-[[proxies]]
-name = "plugin_https2https"
-type = "https"
-customDomains = ["test.yourdomain.com"]
-[proxies.plugin]
-type = "https2https"
-localAddr = "127.0.0.1:443"
-crtPath = "./server.crt"
-keyPath = "./server.key"
-hostHeaderRewrite = "127.0.0.1"
-requestHeaders.set.x-from-where = "frp"
-
-[[proxies]]
-name = "plugin_http2https"
-type = "http"
-customDomains = ["test.yourdomain.com"]
-[proxies.plugin]
-type = "http2https"
-localAddr = "127.0.0.1:443"
-hostHeaderRewrite = "127.0.0.1"
-requestHeaders.set.x-from-where = "frp"
-
-[[proxies]]
-name = "secret_tcp"
-# If the type is secret tcp, remotePort is useless
-# Who want to connect local port should deploy another frpc with stcp proxy and role is visitor
-type = "stcp"
-# secretKey is used for authentication for visitors
-secretKey = "abcdefg"
-localIP = "127.0.0.1"
-localPort = 22
-# If not empty, only visitors from specified users can connect.
-# Otherwise, visitors from same user can connect. '*' means allow all users.
-allowUsers = ["*"]
-
-[[proxies]]
-name = "p2p_tcp"
-type = "xtcp"
-secretKey = "abcdefg"
-localIP = "127.0.0.1"
-localPort = 22
-# If not empty, only visitors from specified users can connect.
-# Otherwise, visitors from same user can connect. '*' means allow all users.
-allowUsers = ["user1", "user2"]
-
-# frpc role visitor -> frps -> frpc role server
-[[visitors]]
-name = "secret_tcp_visitor"
-type = "stcp"
-# the server name you want to visitor
-serverName = "secret_tcp"
-secretKey = "abcdefg"
-# connect this address to visitor stcp server
-bindAddr = "127.0.0.1"
-# bindPort can be less than 0, it means don't bind to the port and only receive connections redirected from
-# other visitors. (This is not supported for SUDP now)
-bindPort = 9000
-
-[[visitors]]
-name = "p2p_tcp_visitor"
-type = "xtcp"
-# if the server user is not set, it defaults to the current user
-serverUser = "user1"
-serverName = "p2p_tcp"
-secretKey = "abcdefg"
-bindAddr = "127.0.0.1"
-# bindPort can be less than 0, it means don't bind to the port and only receive connections redirected from
-# other visitors. (This is not supported for SUDP now)
-bindPort = 9001
-# when automatic tunnel persistence is required, set it to true
-keepTunnelOpen = false
-# effective when keepTunnelOpen is set to true, the number of attempts to punch through per hour
-maxRetriesAnHour = 8
-minRetryInterval = 90
-# fallbackTo = "stcp_visitor"
-# fallbackTimeoutMs = 500
+remotePort = 6000

conf/frpc_full_example.toml

@@ -0,0 +1,417 @@
+# This configuration file is for reference only. Please do not use this configuration directly to run the program as it may have various issues.
+
+# your proxy name will be changed to {user}.{proxy}
+user = "your_name"
+
+# A literal address or host name for IPv6 must be enclosed
+# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
+# For single serverAddr field, no need square brackets, like serverAddr = "::".
+serverAddr = "0.0.0.0"
+serverPort = 7000
+
+# STUN server to help penetrate NAT hole.
+# natHoleStunServer = "stun.easyvoip.com:3478"
+
+# Decide if exit program when first login failed, otherwise continuous relogin to frps
+# default is true
+loginFailExit = true
+
+# console or real logFile path like ./frpc.log
+log.to = "./frpc.log"
+# trace, debug, info, warn, error
+log.level = "info"
+log.maxDays = 3
+# disable log colors when log.to is console, default is false
+log.disablePrintColor = false
+
+auth.method = "token"
+# auth.additionalScopes specifies additional scopes to include authentication information.
+# Optional values are HeartBeats, NewWorkConns.
+# auth.additionalScopes = ["HeartBeats", "NewWorkConns"]
+
+# auth token
+auth.token = "12345678"
+
+# oidc.clientID specifies the client ID to use to get a token in OIDC authentication.
+# auth.oidc.clientID = ""
+# oidc.clientSecret specifies the client secret to use to get a token in OIDC authentication.
+# auth.oidc.clientSecret = ""
+# oidc.audience specifies the audience of the token in OIDC authentication.
+# auth.oidc.audience = ""
+# oidc.scope specifies the permissions of the token in OIDC authentication if AuthenticationMethod == "oidc". By default, this value is "".
+# auth.oidc.scope = ""
+# oidc.tokenEndpointURL specifies the URL which implements OIDC Token Endpoint.
+# It will be used to get an OIDC token.
+# auth.oidc.tokenEndpointURL = ""
+
+# oidc.additionalEndpointParams specifies additional parameters to be sent to the OIDC Token Endpoint.
+# For example, if you want to specify the "audience" parameter, you can set as follow.
+# frp will add "audience=<value>" "var1=<value>" to the additional parameters.
+# auth.oidc.additionalEndpointParams.audience = "https://dev.auth.com/api/v2/"
+# auth.oidc.additionalEndpointParams.var1 = "foobar"
+
+# Set admin address for control frpc's action by http api such as reload
+webServer.addr = "127.0.0.1"
+webServer.port = 7400
+webServer.user = "admin"
+webServer.password = "admin"
+# Admin assets directory. By default, these assets are bundled with frpc.
+# webServer.assetsDir = "./static"
+
+# Enable golang pprof handlers in admin listener.
+webServer.pprofEnable = false
+
+# The maximum amount of time a dial to server will wait for a connect to complete. Default value is 10 seconds.
+# transport.dialServerTimeout = 10
+
+# dialServerKeepalive specifies the interval between keep-alive probes for an active network connection between frpc and frps.
+# If negative, keep-alive probes are disabled.
+# transport.dialServerKeepalive = 7200
+
+# connections will be established in advance, default value is zero
+transport.poolCount = 5
+
+# If tcp stream multiplexing is used, default is true, it must be same with frps
+# transport.tcpMux = true
+
+# Specify keep alive interval for tcp mux.
+# only valid if tcpMux is enabled.
+# transport.tcpMuxKeepaliveInterval = 30
+
+# Communication protocol used to connect to server
+# supports tcp, kcp, quic, websocket and wss now, default is tcp
+transport.protocol = "tcp"
+
+# set client binding ip when connect server, default is empty.
+# only when protocol = tcp or websocket, the value will be used.
+transport.connectServerLocalIP = "0.0.0.0"
+
+# if you want to connect frps by http proxy or socks5 proxy or ntlm proxy, you can set proxyURL here or in global environment variables
+# it only works when protocol is tcp
+# transport.proxyURL = "http://user:passwd@192.168.1.128:8080"
+# transport.proxyURL = "socks5://user:passwd@192.168.1.128:1080"
+# transport.proxyURL = "ntlm://user:passwd@192.168.1.128:2080"
+
+# quic protocol options
+# transport.quic.keepalivePeriod = 10
+# transport.quic.maxIdleTimeout = 30
+# transport.quic.maxIncomingStreams = 100000
+
+# If tls.enable is true, frpc will connect frps by tls.
+# Since v0.50.0, the default value has been changed to true, and tls is enabled by default.
+transport.tls.enable = true
+
+# transport.tls.certFile = "client.crt"
+# transport.tls.keyFile = "client.key"
+# transport.tls.trustedCaFile = "ca.crt"
+# transport.tls.serverName = "example.com"
+
+# If the disableCustomTLSFirstByte is set to false, frpc will establish a connection with frps using the
+# first custom byte when tls is enabled.
+# Since v0.50.0, the default value has been changed to true, and the first custom byte is disabled by default.
+# transport.tls.disableCustomTLSFirstByte = true
+
+# Heartbeat configure, it's not recommended to modify the default value.
+# The default value of heartbeatInterval is 10 and heartbeatTimeout is 90. Set negative value
+# to disable it.
+# transport.heartbeatInterval = 30
+# transport.heartbeatTimeout = 90
+
+# Specify a dns server, so frpc will use this instead of default one
+# dnsServer = "8.8.8.8"
+
+# Proxy names you want to start.
+# Default is empty, means all proxies.
+# start = ["ssh", "dns"]
+
+# Specify udp packet size, unit is byte. If not set, the default value is 1500.
+# This parameter should be same between client and server.
+# It affects the udp and sudp proxy.
+udpPacketSize = 1500
+
+# Feature gates allows you to enable or disable experimental features
+# Format is a map of feature names to boolean values
+# You can enable specific features:
+#featureGates = { VirtualNet = true }
+
+# VirtualNet settings for experimental virtual network capabilities
+# The virtual network feature requires enabling the VirtualNet feature gate above
+# virtualNet.address = "100.86.1.1/24"
+
+# Additional metadatas for client.
+metadatas.var1 = "abc"
+metadatas.var2 = "123"
+
+# Include other config files for proxies.
+# includes = ["./confd/*.ini"]
+
+[[proxies]]
+# 'ssh' is the unique proxy name
+# If global user is not empty, it will be changed to {user}.{proxy} such as 'your_name.ssh'
+name = "ssh"
+type = "tcp"
+localIP = "127.0.0.1"
+localPort = 22
+# Limit bandwidth for this proxy, unit is KB and MB
+transport.bandwidthLimit = "1MB"
+# Where to limit bandwidth, can be 'client' or 'server', default is 'client'
+transport.bandwidthLimitMode = "client"
+# If true, traffic of this proxy will be encrypted, default is false
+transport.useEncryption = false
+# If true, traffic will be compressed
+transport.useCompression = false
+# Remote port listen by frps
+remotePort = 6001
+# frps will load balancing connections for proxies in same group
+loadBalancer.group = "test_group"
+# group should have same group key
+loadBalancer.groupKey = "123456"
+# Enable health check for the backend service, it supports 'tcp' and 'http' now.
+# frpc will connect local service's port to detect it's healthy status
+healthCheck.type = "tcp"
+# Health check connection timeout
+healthCheck.timeoutSeconds = 3
+# If continuous failed in 3 times, the proxy will be removed from frps
+healthCheck.maxFailed = 3
+# Every 10 seconds will do a health check
+healthCheck.intervalSeconds = 10
+# Additional meta info for each proxy. It will be passed to the server-side plugin for use.
+metadatas.var1 = "abc"
+metadatas.var2 = "123"
+# You can add some extra information to the proxy through annotations.
+# These annotations will be displayed on the frps dashboard.
+[proxies.annotations]
+key1 = "value1"
+"prefix/key2" = "value2"
+
+[[proxies]]
+name = "ssh_random"
+type = "tcp"
+localIP = "192.168.31.100"
+localPort = 22
+# If remotePort is 0, frps will assign a random port for you
+remotePort = 0
+
+[[proxies]]
+name = "dns"
+type = "udp"
+localIP = "114.114.114.114"
+localPort = 53
+remotePort = 6002
+
+# Resolve your domain names to [serverAddr] so you can use http://web01.yourdomain.com to browse web01 and http://web02.yourdomain.com to browse web02
+[[proxies]]
+name = "web01"
+type = "http"
+localIP = "127.0.0.1"
+localPort = 80
+# http username and password are safety certification for http protocol
+# if not set, you can access this customDomains without certification
+httpUser = "admin"
+httpPassword = "admin"
+# if domain for frps is frps.com, then you can access [web01] proxy by URL http://web01.frps.com
+subdomain = "web01"
+customDomains = ["web01.yourdomain.com"]
+# locations is only available for http type
+locations = ["/", "/pic"]
+# route requests to this service if http basic auto user is abc
+# routeByHTTPUser = abc
+hostHeaderRewrite = "example.com"
+requestHeaders.set.x-from-where = "frp"
+responseHeaders.set.foo = "bar"
+healthCheck.type = "http"
+# frpc will send a GET http request '/status' to local http service
+# http service is alive when it return 2xx http response code
+healthCheck.path = "/status"
+healthCheck.intervalSeconds = 10
+healthCheck.maxFailed = 3
+healthCheck.timeoutSeconds = 3
+# set health check headers
+healthCheck.httpHeaders=[
+    { name = "x-from-where", value = "frp" }
+]
+
+[[proxies]]
+name = "web02"
+type = "https"
+localIP = "127.0.0.1"
+localPort = 8000
+subdomain = "web02"
+customDomains = ["web02.yourdomain.com"]
+# if not empty, frpc will use proxy protocol to transfer connection info to your local service
+# v1 or v2 or empty
+transport.proxyProtocolVersion = "v2"
+
+[[proxies]]
+name = "tcpmuxhttpconnect"
+type = "tcpmux"
+multiplexer = "httpconnect"
+localIP = "127.0.0.1"
+localPort = 10701
+customDomains = ["tunnel1"]
+# routeByHTTPUser = "user1"
+
+[[proxies]]
+name = "plugin_unix_domain_socket"
+type = "tcp"
+remotePort = 6003
+# if plugin is defined, localIP and localPort is useless
+# plugin will handle connections got from frps
+[proxies.plugin]
+type = "unix_domain_socket"
+unixPath = "/var/run/docker.sock"
+
+[[proxies]]
+name = "plugin_http_proxy"
+type = "tcp"
+remotePort = 6004
+[proxies.plugin]
+type = "http_proxy"
+httpUser = "abc"
+httpPassword = "abc"
+
+[[proxies]]
+name = "plugin_socks5"
+type = "tcp"
+remotePort = 6005
+[proxies.plugin]
+type = "socks5"
+username = "abc"
+password = "abc"
+
+[[proxies]]
+name = "plugin_static_file"
+type = "tcp"
+remotePort = 6006
+[proxies.plugin]
+type = "static_file"
+localPath = "/var/www/blog"
+stripPrefix = "static"
+httpUser = "abc"
+httpPassword = "abc"
+
+[[proxies]]
+name = "plugin_https2http"
+type = "https"
+customDomains = ["test.yourdomain.com"]
+[proxies.plugin]
+type = "https2http"
+localAddr = "127.0.0.1:80"
+crtPath = "./server.crt"
+keyPath = "./server.key"
+hostHeaderRewrite = "127.0.0.1"
+requestHeaders.set.x-from-where = "frp"
+
+[[proxies]]
+name = "plugin_https2https"
+type = "https"
+customDomains = ["test.yourdomain.com"]
+[proxies.plugin]
+type = "https2https"
+localAddr = "127.0.0.1:443"
+crtPath = "./server.crt"
+keyPath = "./server.key"
+hostHeaderRewrite = "127.0.0.1"
+requestHeaders.set.x-from-where = "frp"
+
+[[proxies]]
+name = "plugin_http2https"
+type = "http"
+customDomains = ["test.yourdomain.com"]
+[proxies.plugin]
+type = "http2https"
+localAddr = "127.0.0.1:443"
+hostHeaderRewrite = "127.0.0.1"
+requestHeaders.set.x-from-where = "frp"
+
+[[proxies]]
+name = "plugin_http2http"
+type = "tcp"
+remotePort = 6007
+[proxies.plugin]
+type = "http2http"
+localAddr = "127.0.0.1:80"
+hostHeaderRewrite = "127.0.0.1"
+requestHeaders.set.x-from-where = "frp"
+
+[[proxies]]
+name = "plugin_tls2raw"
+type = "tcp"
+remotePort = 6008
+[proxies.plugin]
+type = "tls2raw"
+localAddr = "127.0.0.1:80"
+crtPath = "./server.crt"
+keyPath = "./server.key"
+
+[[proxies]]
+name = "secret_tcp"
+# If the type is secret tcp, remotePort is useless
+# Who want to connect local port should deploy another frpc with stcp proxy and role is visitor
+type = "stcp"
+# secretKey is used for authentication for visitors
+secretKey = "abcdefg"
+localIP = "127.0.0.1"
+localPort = 22
+# If not empty, only visitors from specified users can connect.
+# Otherwise, visitors from same user can connect. '*' means allow all users.
+allowUsers = ["*"]
+
+[[proxies]]
+name = "p2p_tcp"
+type = "xtcp"
+secretKey = "abcdefg"
+localIP = "127.0.0.1"
+localPort = 22
+# If not empty, only visitors from specified users can connect.
+# Otherwise, visitors from same user can connect. '*' means allow all users.
+allowUsers = ["user1", "user2"]
+
+[[proxies]]
+name = "vnet-server"
+type = "stcp"
+secretKey = "your-secret-key"
+[proxies.plugin]
+type = "virtual_net"
+
+# frpc role visitor -> frps -> frpc role server
+[[visitors]]
+name = "secret_tcp_visitor"
+type = "stcp"
+# the server name you want to visitor
+serverName = "secret_tcp"
+secretKey = "abcdefg"
+# connect this address to visitor stcp server
+bindAddr = "127.0.0.1"
+# bindPort can be less than 0, it means don't bind to the port and only receive connections redirected from
+# other visitors. (This is not supported for SUDP now)
+bindPort = 9000
+
+[[visitors]]
+name = "p2p_tcp_visitor"
+type = "xtcp"
+# if the server user is not set, it defaults to the current user
+serverUser = "user1"
+serverName = "p2p_tcp"
+secretKey = "abcdefg"
+bindAddr = "127.0.0.1"
+# bindPort can be less than 0, it means don't bind to the port and only receive connections redirected from
+# other visitors. (This is not supported for SUDP now)
+bindPort = 9001
+# when automatic tunnel persistence is required, set it to true
+keepTunnelOpen = false
+# effective when keepTunnelOpen is set to true, the number of attempts to punch through per hour
+maxRetriesAnHour = 8
+minRetryInterval = 90
+# fallbackTo = "stcp_visitor"
+# fallbackTimeoutMs = 500
+
+[[visitors]]
+name = "vnet-visitor"
+type = "stcp"
+serverName = "vnet-server"
+secretKey = "your-secret-key"
+bindPort = -1
+[visitors.plugin]
+type = "virtual_net"
+destinationIP = "100.86.0.1"

conf/frps.toml

@@ -1,156 +1 @@
-# This configuration file is for reference only. Please do not use this configuration directly to run the program as it may have various issues.
-
-# A literal address or host name for IPv6 must be enclosed
-# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
-# For single "bindAddr" field, no need square brackets, like `bindAddr = "::"`.
-bindAddr = "0.0.0.0"
 bindPort = 7000
-
-# udp port used for kcp protocol, it can be same with 'bindPort'.
-# if not set, kcp is disabled in frps.
-kcpBindPort = 7000
-
-# udp port used for quic protocol.
-# if not set, quic is disabled in frps.
-# quicBindPort = 7002
-
-# Specify which address proxy will listen for, default value is same with bindAddr
-# proxyBindAddr = "127.0.0.1"
-
-# quic protocol options
-# transport.quic.keepalivePeriod = 10
-# transport.quic.maxIdleTimeout = 30
-# transport.quic.maxIncomingStreams = 100000
-
-# Heartbeat configure, it's not recommended to modify the default value
-# The default value of heartbeatTimeout is 90. Set negative value to disable it.
-# transport.heartbeatTimeout = 90
-
-# Pool count in each proxy will keep no more than maxPoolCount.
-transport.maxPoolCount = 5
-
-# If tcp stream multiplexing is used, default is true
-# transport.tcpMux = true
-
-# Specify keep alive interval for tcp mux.
-# only valid if tcpMux is true.
-# transport.tcpMuxKeepaliveInterval = 60
-
-# tcpKeepalive specifies the interval between keep-alive probes for an active network connection between frpc and frps.
-# If negative, keep-alive probes are disabled.
-# transport.tcpKeepalive = 7200
-
-# transport.tls.force specifies whether to only accept TLS-encrypted connections. By default, the value is false.
-tls.force = false
-
-# transport.tls.certFile = "server.crt"
-# transport.tls.keyFile = "server.key"
-# transport.tls.trustedCaFile = "ca.crt"
-
-# If you want to support virtual host, you must set the http port for listening (optional)
-# Note: http port and https port can be same with bindPort
-vhostHTTPPort = 80
-vhostHTTPSPort = 443
-
-# Response header timeout(seconds) for vhost http server, default is 60s
-# vhostHTTPTimeout = 60
-
-# tcpmuxHTTPConnectPort specifies the port that the server listens for TCP
-# HTTP CONNECT requests. If the value is 0, the server will not multiplex TCP
-# requests on one single port. If it's not - it will listen on this value for
-# HTTP CONNECT requests. By default, this value is 0.
-# tcpmuxHTTPConnectPort = 1337
-
-# If tcpmuxPassthrough is true, frps won't do any update on traffic.
-# tcpmuxPassthrough = false
-
-# Configure the web server to enable the dashboard for frps.
-# dashboard is available only if webServer.port is set.
-webServer.addr = "127.0.0.1"
-webServer.port = 7500
-webServer.user = "admin"
-webServer.password = "admin"
-# webServer.tls.certFile = "server.crt"
-# webServer.tls.keyFile = "server.key"
-# dashboard assets directory(only for debug mode)
-# webServer.assetsDir = "./static"
-
-# Enable golang pprof handlers in dashboard listener.
-# Dashboard port must be set first
-webServer.pprofEnable = false
-
-# enablePrometheus will export prometheus metrics on webServer in /metrics api.
-enablePrometheus = true
-
-# console or real logFile path like ./frps.log
-log.to = "./frps.log"
-# trace, debug, info, warn, error
-log.level = "info"
-log.maxDays = 3
-# disable log colors when log.to is console, default is false
-log.disablePrintColor = false
-
-# DetailedErrorsToClient defines whether to send the specific error (with debug info) to frpc. By default, this value is true.
-detailedErrorsToClient = true
-
-# auth.method specifies what authentication method to use authenticate frpc with frps.
-# If "token" is specified - token will be read into login message.
-# If "oidc" is specified - OIDC (Open ID Connect) token will be issued using OIDC settings. By default, this value is "token".
-auth.method = "token"
-
-# auth.additionalScopes specifies additional scopes to include authentication information.
-# Optional values are HeartBeats, NewWorkConns.
-# auth.additionalScopes = ["HeartBeats", "NewWorkConns"]
-
-# auth token
-auth.token = "12345678"
-
-# oidc issuer specifies the issuer to verify OIDC tokens with.
-auth.oidc.issuer = ""
-# oidc audience specifies the audience OIDC tokens should contain when validated.
-auth.oidc.audience = ""
-# oidc skipExpiryCheck specifies whether to skip checking if the OIDC token is expired.
-auth.oidc.skipExpiryCheck = false
-# oidc skipIssuerCheck specifies whether to skip checking if the OIDC token's issuer claim matches the issuer specified in OidcIssuer.
-auth.oidc.skipIssuerCheck = false
-
-# userConnTimeout specifies the maximum time to wait for a work connection.
-# userConnTimeout = 10
-
-# Only allow frpc to bind ports you list. By default, there won't be any limit.
-allowPorts = [
-  { start = 2000, end = 3000 },
-  { single = 3001 },
-  { single = 3003 },
-  { start = 4000, end = 50000 }
-]
-
-# Max ports can be used for each client, default value is 0 means no limit
-maxPortsPerClient = 0
-
-# If subDomainHost is not empty, you can set subdomain when type is http or https in frpc's configure file
-# When subdomain is est, the host used by routing is test.frps.com
-subDomainHost = "frps.com"
-
-# custom 404 page for HTTP requests
-# custom404Page = "/path/to/404.html"
-
-# specify udp packet size, unit is byte. If not set, the default value is 1500.
-# This parameter should be same between client and server.
-# It affects the udp and sudp proxy.
-udpPacketSize = 1500
-
-# Retention time for NAT hole punching strategy data.
-natholeAnalysisDataReserveHours = 168
-
-[[httpPlugins]]
-name = "user-manager"
-addr = "127.0.0.1:9000"
-path = "/handler"
-ops = ["Login"]
-
-[[httpPlugins]]
-name = "port-manager"
-addr = "127.0.0.1:9001"
-path = "/handler"
-ops = ["NewProxy"]

conf/frps_full_example.toml

@@ -0,0 +1,164 @@
+# This configuration file is for reference only. Please do not use this configuration directly to run the program as it may have various issues.
+
+# A literal address or host name for IPv6 must be enclosed
+# in square brackets, as in "[::1]:80", "[ipv6-host]:http" or "[ipv6-host%zone]:80"
+# For single "bindAddr" field, no need square brackets, like `bindAddr = "::"`.
+bindAddr = "0.0.0.0"
+bindPort = 7000
+
+# udp port used for kcp protocol, it can be same with 'bindPort'.
+# if not set, kcp is disabled in frps.
+kcpBindPort = 7000
+
+# udp port used for quic protocol.
+# if not set, quic is disabled in frps.
+# quicBindPort = 7002
+
+# Specify which address proxy will listen for, default value is same with bindAddr
+# proxyBindAddr = "127.0.0.1"
+
+# quic protocol options
+# transport.quic.keepalivePeriod = 10
+# transport.quic.maxIdleTimeout = 30
+# transport.quic.maxIncomingStreams = 100000
+
+# Heartbeat configure, it's not recommended to modify the default value
+# The default value of heartbeatTimeout is 90. Set negative value to disable it.
+# transport.heartbeatTimeout = 90
+
+# Pool count in each proxy will keep no more than maxPoolCount.
+transport.maxPoolCount = 5
+
+# If tcp stream multiplexing is used, default is true
+# transport.tcpMux = true
+
+# Specify keep alive interval for tcp mux.
+# only valid if tcpMux is true.
+# transport.tcpMuxKeepaliveInterval = 30
+
+# tcpKeepalive specifies the interval between keep-alive probes for an active network connection between frpc and frps.
+# If negative, keep-alive probes are disabled.
+# transport.tcpKeepalive = 7200
+
+# transport.tls.force specifies whether to only accept TLS-encrypted connections. By default, the value is false.
+transport.tls.force = false
+
+# transport.tls.certFile = "server.crt"
+# transport.tls.keyFile = "server.key"
+# transport.tls.trustedCaFile = "ca.crt"
+
+# If you want to support virtual host, you must set the http port for listening (optional)
+# Note: http port and https port can be same with bindPort
+vhostHTTPPort = 80
+vhostHTTPSPort = 443
+
+# Response header timeout(seconds) for vhost http server, default is 60s
+# vhostHTTPTimeout = 60
+
+# tcpmuxHTTPConnectPort specifies the port that the server listens for TCP
+# HTTP CONNECT requests. If the value is 0, the server will not multiplex TCP
+# requests on one single port. If it's not - it will listen on this value for
+# HTTP CONNECT requests. By default, this value is 0.
+# tcpmuxHTTPConnectPort = 1337
+
+# If tcpmuxPassthrough is true, frps won't do any update on traffic.
+# tcpmuxPassthrough = false
+
+# Configure the web server to enable the dashboard for frps.
+# dashboard is available only if webServer.port is set.
+webServer.addr = "127.0.0.1"
+webServer.port = 7500
+webServer.user = "admin"
+webServer.password = "admin"
+# webServer.tls.certFile = "server.crt"
+# webServer.tls.keyFile = "server.key"
+# dashboard assets directory(only for debug mode)
+# webServer.assetsDir = "./static"
+
+# Enable golang pprof handlers in dashboard listener.
+# Dashboard port must be set first
+webServer.pprofEnable = false
+
+# enablePrometheus will export prometheus metrics on webServer in /metrics api.
+enablePrometheus = true
+
+# console or real logFile path like ./frps.log
+log.to = "./frps.log"
+# trace, debug, info, warn, error
+log.level = "info"
+log.maxDays = 3
+# disable log colors when log.to is console, default is false
+log.disablePrintColor = false
+
+# DetailedErrorsToClient defines whether to send the specific error (with debug info) to frpc. By default, this value is true.
+detailedErrorsToClient = true
+
+# auth.method specifies what authentication method to use authenticate frpc with frps.
+# If "token" is specified - token will be read into login message.
+# If "oidc" is specified - OIDC (Open ID Connect) token will be issued using OIDC settings. By default, this value is "token".
+auth.method = "token"
+
+# auth.additionalScopes specifies additional scopes to include authentication information.
+# Optional values are HeartBeats, NewWorkConns.
+# auth.additionalScopes = ["HeartBeats", "NewWorkConns"]
+
+# auth token
+auth.token = "12345678"
+
+# oidc issuer specifies the issuer to verify OIDC tokens with.
+auth.oidc.issuer = ""
+# oidc audience specifies the audience OIDC tokens should contain when validated.
+auth.oidc.audience = ""
+# oidc skipExpiryCheck specifies whether to skip checking if the OIDC token is expired.
+auth.oidc.skipExpiryCheck = false
+# oidc skipIssuerCheck specifies whether to skip checking if the OIDC token's issuer claim matches the issuer specified in OidcIssuer.
+auth.oidc.skipIssuerCheck = false
+
+# userConnTimeout specifies the maximum time to wait for a work connection.
+# userConnTimeout = 10
+
+# Only allow frpc to bind ports you list. By default, there won't be any limit.
+allowPorts = [
+  { start = 2000, end = 3000 },
+  { single = 3001 },
+  { single = 3003 },
+  { start = 4000, end = 50000 }
+]
+
+# Max ports can be used for each client, default value is 0 means no limit
+maxPortsPerClient = 0
+
+# If subDomainHost is not empty, you can set subdomain when type is http or https in frpc's configure file
+# When subdomain is test, the host used by routing is test.frps.com
+subDomainHost = "frps.com"
+
+# custom 404 page for HTTP requests
+# custom404Page = "/path/to/404.html"
+
+# specify udp packet size, unit is byte. If not set, the default value is 1500.
+# This parameter should be same between client and server.
+# It affects the udp and sudp proxy.
+udpPacketSize = 1500
+
+# Retention time for NAT hole punching strategy data.
+natholeAnalysisDataReserveHours = 168
+
+# ssh tunnel gateway
+# If you want to enable this feature, the bindPort parameter is required, while others are optional.
+# By default, this feature is disabled. It will be enabled if bindPort is greater than 0.
+# sshTunnelGateway.bindPort = 2200
+# sshTunnelGateway.privateKeyFile = "/home/frp-user/.ssh/id_rsa"
+# sshTunnelGateway.autoGenPrivateKeyPath = ""
+# sshTunnelGateway.authorizedKeysFile = "/home/frp-user/.ssh/authorized_keys"
+
+[[httpPlugins]]
+name = "user-manager"
+addr = "127.0.0.1:9000"
+path = "/handler"
+ops = ["Login"]
+
+[[httpPlugins]]
+name = "port-manager"
+addr = "127.0.0.1:9001"
+path = "/handler"
+ops = ["NewProxy"]

conf/legacy/frpc_legacy_full.ini

@@ -56,7 +56,7 @@ oidc_client_secret =
 # oidc_audience specifies the audience of the token in OIDC authentication if AuthenticationMethod == "oidc". By default, this value is "".
 oidc_audience =
 
-# oidc_scope specifies the permisssions of the token in OIDC authentication if AuthenticationMethod == "oidc". By default, this value is "".
+# oidc_scope specifies the permissions of the token in OIDC authentication if AuthenticationMethod == "oidc". By default, this value is "".
 oidc_scope =
 
 # oidc_token_endpoint_url specifies the URL which implements OIDC Token Endpoint.

doc/ssh_tunnel_gateway.md

@@ -0,0 +1,160 @@
+### SSH Tunnel Gateway
+
+*Added in v0.53.0*
+
+### Concept
+
+SSH supports reverse proxy capabilities [rfc](https://www.rfc-editor.org/rfc/rfc4254#page-16).
+
+frp supports listening on an SSH port on the frps side to achieve TCP protocol proxying using the SSH -R protocol. This mode does not rely on frpc.
+
+SSH reverse tunneling proxying and proxying SSH ports through frp are two different concepts. SSH reverse tunneling proxying is essentially a basic reverse proxying accomplished by connecting to frps via an SSH client when you don't want to use frpc.
+
+```toml
+# frps.toml
+sshTunnelGateway.bindPort = 0
+sshTunnelGateway.privateKeyFile = ""
+sshTunnelGateway.autoGenPrivateKeyPath = ""
+sshTunnelGateway.authorizedKeysFile = ""
+```
+
+| Field | Type | Description | Required |
+| :--- | :--- | :--- | :--- |
+| bindPort| int | The ssh server port that frps listens on.| Yes |
+| privateKeyFile | string | Default value is empty. The private key file used by the ssh server. If it is empty, frps will read the private key file under the autoGenPrivateKeyPath path. It can reuse the /home/user/.ssh/id_rsa file on the local machine, or a custom path can be specified.| No |
+| autoGenPrivateKeyPath  | string |Default value is ./.autogen_ssh_key. If the file does not exist or its content is empty, frps will automatically generate RSA private key file content and store it in this file.|No|
+| authorizedKeysFile  | string |Default value is empty. If it is empty, ssh client authentication is not authenticated. If it is not empty, it can implement ssh password-free login authentication. It can reuse the local /home/user/.ssh/authorized_keys file or a custom path can be specified.| No |
+
+### Basic Usage
+
+#### Server-side frps
+
+Minimal configuration:
+
+```toml
+sshTunnelGateway.bindPort = 2200
+```
+
+Place the above configuration in frps.toml and run `./frps -c frps.toml`. It will listen on port 2200 and accept SSH reverse proxy requests.
+
+Note:
+
+1. When using the minimal configuration, a `.autogen_ssh_key` private key file will be automatically created in the current working directory. The SSH server of frps will use this private key file for encryption and decryption. Alternatively, you can reuse an existing private key file on your local machine, such as `/home/user/.ssh/id_rsa`.
+
+2. When running frps in the minimal configuration mode, connecting to frps via SSH does not require authentication. It is strongly recommended to configure a token in frps and specify the token in the SSH command line.
+
+#### Client-side SSH
+
+The command format is:
+
+```bash
+ssh -R :80:{local_ip:port} v0@{frps_address} -p {frps_ssh_listen_port} {tcp|http|https|stcp|tcpmux} --remote_port {real_remote_port} --proxy_name {proxy_name} --token {frp_token}
+```
+
+1. `--proxy_name` is optional, and if left empty, a random one will be generated.
+2. The username for logging in to frps is always "v0" and currently has no significance, i.e., `v0@{frps_address}`.
+3. The server-side proxy listens on the port determined by `--remote_port`.
+4. `{tcp|http|https|stcp|tcpmux}` supports the complete command parameters, which can be obtained by using `--help`. For example: `ssh -R :80::8080 v0@127.0.0.1 -p 2200 http --help`.
+5. The token is optional, but for security reasons, it is strongly recommended to configure the token in frps.
+
+#### TCP Proxy
+
+```bash
+ssh -R :80:127.0.0.1:8080 v0@{frp_address} -p 2200 tcp --proxy_name "test-tcp" --remote_port 9090
+```
+
+This sets up a proxy on frps that listens on port 9090 and proxies local service on port 8080.
+
+```bash
+frp (via SSH) (Ctrl+C to quit)
+
+User: 
+ProxyName: test-tcp
+Type: tcp
+RemoteAddress: :9090
+```
+
+Equivalent to:
+
+```bash
+frpc tcp --proxy_name "test-tcp" --local_ip 127.0.0.1 --local_port 8080 --remote_port 9090
+```
+
+More parameters can be obtained by executing `--help`.
+
+#### HTTP Proxy
+
+```bash
+ssh -R :80:127.0.0.1:8080 v0@{frp address} -p 2200 http --proxy_name "test-http"  --custom_domain test-http.frps.com
+```
+
+Equivalent to:
+```bash
+frpc http --proxy_name "test-http" --custom_domain test-http.frps.com
+```
+
+You can access the HTTP service using the following command:
+
+curl 'http://test-http.frps.com'
+
+More parameters can be obtained by executing --help.
+
+#### HTTPS/STCP/TCPMUX Proxy
+
+To obtain the usage instructions, use the following command:
+
+```bash
+ssh -R :80:127.0.0.1:8080 v0@{frp address} -p 2200 {https|stcp|tcpmux} --help
+```
+
+### Advanced Usage
+
+#### Reusing the id_rsa File on the Local Machine
+
+```toml
+# frps.toml
+sshTunnelGateway.bindPort = 2200
+sshTunnelGateway.privateKeyFile = "/home/user/.ssh/id_rsa"
+```
+
+During the SSH protocol handshake, public keys are exchanged for data encryption. Therefore, the SSH server on the frps side needs to specify a private key file, which can be reused from an existing file on the local machine. If the privateKeyFile field is empty, frps will automatically create an RSA private key file.
+
+#### Specifying the Auto-Generated Private Key File Path
+
+```toml
+# frps.toml
+sshTunnelGateway.bindPort = 2200
+sshTunnelGateway.autoGenPrivateKeyPath = "/var/frp/ssh-private-key-file"
+```
+
+frps will automatically create a private key file and store it at the specified path.
+
+Note: Changing the private key file in frps can cause SSH client login failures. If you need to log in successfully, you can delete the old records from the `/home/user/.ssh/known_hosts` file.
+
+#### Using an Existing authorized_keys File for SSH Public Key Authentication
+
+```toml
+# frps.toml
+sshTunnelGateway.bindPort = 2200
+sshTunnelGateway.authorizedKeysFile = "/home/user/.ssh/authorized_keys"
+```
+
+The authorizedKeysFile is the file used for SSH public key authentication, which contains the public key information for users, with one key per line.
+
+If authorizedKeysFile is empty, frps won't perform any authentication for SSH clients. Frps does not support SSH username and password authentication.
+
+You can reuse an existing `authorized_keys` file on your local machine for client authentication.
+
+Note: authorizedKeysFile is for user authentication during the SSH login phase, while the token is for frps authentication. These two authentication methods are independent. SSH authentication comes first, followed by frps token authentication. It is strongly recommended to enable at least one of them. If authorizedKeysFile is empty, it is highly recommended to enable token authentication in frps to avoid security risks.
+
+#### Using a Custom authorized_keys File for SSH Public Key Authentication
+
+```toml
+# frps.toml
+sshTunnelGateway.bindPort = 2200
+sshTunnelGateway.authorizedKeysFile = "/var/frps/custom_authorized_keys_file"
+```
+
+Specify the path to a custom `authorized_keys` file.
+
+Note that changes to the authorizedKeysFile file may result in SSH authentication failures. You may need to re-add the public key information to the authorizedKeysFile.

doc/virtual_net.md

@@ -0,0 +1,73 @@
+# Virtual Network (VirtualNet)
+
+*Alpha feature added in v0.62.0*
+
+The VirtualNet feature enables frp to create and manage virtual network connections between clients and visitors through a TUN interface. This allows for IP-level routing between machines, extending frp beyond simple port forwarding to support full network connectivity.
+
+> **Note**: VirtualNet is an Alpha stage feature and is currently unstable. Its configuration methods and functionality may be adjusted and changed at any time in subsequent versions. Do not use this feature in production environments; it is only recommended for testing and evaluation purposes.
+
+## Enabling VirtualNet
+
+Since VirtualNet is currently an alpha feature, you need to enable it with feature gates in your configuration:
+
+```toml
+# frpc.toml
+featureGates = { VirtualNet = true }
+```
+
+## Basic Configuration
+
+To use the virtual network capabilities:
+
+1. First, configure your frpc with a virtual network address:
+
+```toml
+# frpc.toml
+serverAddr = "x.x.x.x"
+serverPort = 7000
+featureGates = { VirtualNet = true }
+
+# Configure the virtual network interface
+virtualNet.address = "100.86.0.1/24"
+```
+
+2. For client proxies, use the `virtual_net` plugin:
+
+```toml
+# frpc.toml (server side)
+[[proxies]]
+name = "vnet-server"
+type = "stcp"
+secretKey = "your-secret-key"
+[proxies.plugin]
+type = "virtual_net"
+```
+
+3. For visitor connections, configure the `virtual_net` visitor plugin:
+
+```toml
+# frpc.toml (client side)
+serverAddr = "x.x.x.x"
+serverPort = 7000
+featureGates = { VirtualNet = true }
+
+# Configure the virtual network interface
+virtualNet.address = "100.86.0.2/24"
+
+[[visitors]]
+name = "vnet-visitor"
+type = "stcp"
+serverName = "vnet-server"
+secretKey = "your-secret-key"
+bindPort = -1
+[visitors.plugin]
+type = "virtual_net"
+destinationIP = "100.86.0.1"
+```
+
+## Requirements and Limitations
+
+- **Permissions**: Creating a TUN interface requires elevated permissions (root/admin)
+- **Platform Support**: Currently supported on Linux and macOS
+- **Default Status**: As an alpha feature, VirtualNet is disabled by default
+- **Configuration**: A valid IP/CIDR must be provided for each endpoint in the virtual network 

dockerfiles/Dockerfile-for-frpc

@@ -1,4 +1,4 @@
-FROM golang:1.21 AS building
+FROM golang:1.23 AS building
 
 COPY . /building
 WORKDIR /building
@@ -7,6 +7,8 @@ RUN make frpc
 
 FROM alpine:3
 
+RUN apk add --no-cache tzdata
+
 COPY --from=building /building/bin/frpc /usr/bin/frpc
 
 ENTRYPOINT ["/usr/bin/frpc"]

dockerfiles/Dockerfile-for-frps

@@ -1,4 +1,4 @@
-FROM golang:1.21 AS building
+FROM golang:1.23 AS building
 
 COPY . /building
 WORKDIR /building
@@ -7,6 +7,8 @@ RUN make frps
 
 FROM alpine:3
 
+RUN apk add --no-cache tzdata
+
 COPY --from=building /building/bin/frps /usr/bin/frps
 
 ENTRYPOINT ["/usr/bin/frps"]

go.mod

@@ -1,80 +1,83 @@
 module github.com/fatedier/frp
 
-go 1.20
+go 1.23.0
 
 require (
 	github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5
-	github.com/coreos/go-oidc/v3 v3.6.0
-	github.com/fatedier/beego v0.0.0-20171024143340-6c6a4f5bd5eb
-	github.com/fatedier/golib v0.1.1-0.20230725122706-dcbaee8eef40
-	github.com/fatedier/kcp-go v2.0.4-0.20190803094908-fe8645b0a904+incompatible
-	github.com/google/uuid v1.3.0
-	github.com/gorilla/mux v1.8.0
+	github.com/coreos/go-oidc/v3 v3.14.1
+	github.com/fatedier/golib v0.5.1
+	github.com/google/uuid v1.6.0
+	github.com/gorilla/mux v1.8.1
 	github.com/gorilla/websocket v1.5.0
 	github.com/hashicorp/yamux v0.1.1
-	github.com/onsi/ginkgo/v2 v2.11.0
-	github.com/onsi/gomega v1.27.8
-	github.com/pelletier/go-toml/v2 v2.1.0
-	github.com/pion/stun v0.6.1
+	github.com/onsi/ginkgo/v2 v2.22.0
+	github.com/onsi/gomega v1.34.2
+	github.com/pelletier/go-toml/v2 v2.2.0
+	github.com/pion/stun/v2 v2.0.0
 	github.com/pires/go-proxyproto v0.7.0
-	github.com/prometheus/client_golang v1.16.0
-	github.com/quic-go/quic-go v0.37.4
-	github.com/rodaine/table v1.1.0
-	github.com/samber/lo v1.38.1
-	github.com/spf13/cobra v1.7.0
-	github.com/stretchr/testify v1.8.4
-	golang.org/x/net v0.12.0
-	golang.org/x/oauth2 v0.10.0
-	golang.org/x/sync v0.3.0
-	golang.org/x/time v0.3.0
+	github.com/prometheus/client_golang v1.19.1
+	github.com/quic-go/quic-go v0.48.2
+	github.com/rodaine/table v1.2.0
+	github.com/samber/lo v1.47.0
+	github.com/songgao/water v0.0.0-20200317203138-2b4b6d7c09d8
+	github.com/spf13/cobra v1.8.0
+	github.com/spf13/pflag v1.0.5
+	github.com/stretchr/testify v1.10.0
+	github.com/tidwall/gjson v1.17.1
+	github.com/vishvananda/netlink v1.3.0
+	github.com/xtaci/kcp-go/v5 v5.6.13
+	golang.org/x/crypto v0.37.0
+	golang.org/x/net v0.39.0
+	golang.org/x/oauth2 v0.28.0
+	golang.org/x/sync v0.13.0
+	golang.org/x/time v0.5.0
+	golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173
 	gopkg.in/ini.v1 v1.67.0
-	k8s.io/apimachinery v0.27.4
-	k8s.io/client-go v0.27.4
+	k8s.io/apimachinery v0.28.8
+	k8s.io/client-go v0.28.8
 )
 
 require (
-	github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c // indirect
+	github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 // indirect
 	github.com/beorn7/perks v1.0.1 // indirect
 	github.com/cespare/xxhash/v2 v2.2.0 // indirect
 	github.com/davecgh/go-spew v1.1.1 // indirect
-	github.com/go-jose/go-jose/v3 v3.0.0 // indirect
-	github.com/go-logr/logr v1.2.4 // indirect
-	github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 // indirect
-	github.com/golang/mock v1.6.0 // indirect
-	github.com/golang/protobuf v1.5.3 // indirect
+	github.com/go-jose/go-jose/v4 v4.0.5 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-task/slim-sprig/v3 v3.0.0 // indirect
 	github.com/golang/snappy v0.0.4 // indirect
-	github.com/google/go-cmp v0.5.9 // indirect
-	github.com/google/pprof v0.0.0-20210720184732-4bb14d4b1be1 // indirect
+	github.com/google/go-cmp v0.6.0 // indirect
+	github.com/google/pprof v0.0.0-20241206021119-61a79c692802 // indirect
 	github.com/inconshreveable/mousetrap v1.1.0 // indirect
-	github.com/klauspost/cpuid/v2 v2.0.6 // indirect
-	github.com/klauspost/reedsolomon v1.9.15 // indirect
+	github.com/klauspost/cpuid/v2 v2.2.6 // indirect
+	github.com/klauspost/reedsolomon v1.12.0 // indirect
 	github.com/kr/text v0.2.0 // indirect
-	github.com/matttproud/golang_protobuf_extensions v1.0.4 // indirect
 	github.com/pion/dtls/v2 v2.2.7 // indirect
 	github.com/pion/logging v0.2.2 // indirect
 	github.com/pion/transport/v2 v2.2.1 // indirect
+	github.com/pion/transport/v3 v3.0.1 // indirect
 	github.com/pkg/errors v0.9.1 // indirect
 	github.com/pmezard/go-difflib v1.0.0 // indirect
-	github.com/prometheus/client_model v0.3.0 // indirect
-	github.com/prometheus/common v0.42.0 // indirect
-	github.com/prometheus/procfs v0.10.1 // indirect
-	github.com/quic-go/qtls-go1-20 v0.3.1 // indirect
-	github.com/rogpeppe/go-internal v1.11.0 // indirect
-	github.com/spf13/pflag v1.0.5 // indirect
-	github.com/templexxx/cpufeat v0.0.0-20180724012125-cef66df7f161 // indirect
-	github.com/templexxx/xor v0.0.0-20191217153810-f85b25db303b // indirect
+	github.com/prometheus/client_model v0.5.0 // indirect
+	github.com/prometheus/common v0.48.0 // indirect
+	github.com/prometheus/procfs v0.12.0 // indirect
+	github.com/templexxx/cpu v0.1.1 // indirect
+	github.com/templexxx/xorsimd v0.4.3 // indirect
+	github.com/tidwall/match v1.1.1 // indirect
+	github.com/tidwall/pretty v1.2.0 // indirect
 	github.com/tjfoc/gmsm v1.4.1 // indirect
-	golang.org/x/crypto v0.11.0 // indirect
-	golang.org/x/exp v0.0.0-20221205204356-47842c84f3db // indirect
-	golang.org/x/mod v0.10.0 // indirect
-	golang.org/x/sys v0.10.0 // indirect
-	golang.org/x/text v0.11.0 // indirect
-	golang.org/x/tools v0.9.3 // indirect
-	google.golang.org/appengine v1.6.7 // indirect
-	google.golang.org/protobuf v1.31.0 // indirect
+	github.com/vishvananda/netns v0.0.4 // indirect
+	go.uber.org/mock v0.5.0 // indirect
+	golang.org/x/exp v0.0.0-20241204233417-43b7b7cde48d // indirect
+	golang.org/x/mod v0.22.0 // indirect
+	golang.org/x/sys v0.32.0 // indirect
+	golang.org/x/text v0.24.0 // indirect
+	golang.org/x/tools v0.28.0 // indirect
+	golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 // indirect
+	google.golang.org/protobuf v1.34.1 // indirect
 	gopkg.in/yaml.v2 v2.4.0 // indirect
 	gopkg.in/yaml.v3 v3.0.1 // indirect
-	k8s.io/utils v0.0.0-20230209194617-a36077c30491 // indirect
+	k8s.io/utils v0.0.0-20230406110748-d93618cff8a2 // indirect
 	sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd // indirect
 	sigs.k8s.io/yaml v1.3.0 // indirect
 )

go.sum

@@ -1,6 +1,6 @@
 cloud.google.com/go v0.26.0/go.mod h1:aQUYkXzVsufM+DwF1aE+0xfcU+56JwCaLick0ClmMTw=
-github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c h1:/IBSNwUN8+eKzUzbJPqhK839ygXJ82sde8x3ogr6R28=
-github.com/Azure/go-ntlmssp v0.0.0-20200615164410-66371956d46c/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU=
+github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358 h1:mFRzDkZVAjdal+s7s0MwaRv9igoPqLRdzOLzw/8Xvq8=
+github.com/Azure/go-ntlmssp v0.0.0-20221128193559-754e69321358/go.mod h1:chxPXzSsl7ZWRAuOIE23GDNzjWuZquvFlgA8xmpunjU=
 github.com/BurntSushi/toml v0.3.1/go.mod h1:xHWCNGjB5oqiDr8zfno3MHue2Ht5sIBksp03qcyfWMU=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5 h1:0CwZNZbxp69SHPdPJAN/hZIm0C4OItdklCFmMRWYpio=
 github.com/armon/go-socks5 v0.0.0-20160902184237-e75332964ef5/go.mod h1:wHh0iHkYZB8zMSxRWpUBQtwG5a7fFgvEO+odwuTv2gs=
@@ -9,14 +9,11 @@ github.com/beorn7/perks v1.0.1/go.mod h1:G2ZrVWU2WbWT9wwq4/hrbKbnv/1ERSJQ0ibhJ6r
 github.com/census-instrumentation/opencensus-proto v0.2.1/go.mod h1:f6KPmirojxKA12rnyqOA5BBL4O983OfeGPqjHWSTneU=
 github.com/cespare/xxhash/v2 v2.2.0 h1:DC2CZ1Ep5Y4k3ZQ899DldepgrayRUGE6BBZ/cd9Cj44=
 github.com/cespare/xxhash/v2 v2.2.0/go.mod h1:VGX0DQ3Q6kWi7AoAeZDth3/j3BFtOZR5XLFGgcrjCOs=
-github.com/chzyer/logex v1.1.10/go.mod h1:+Ywpsq7O8HXn0nuIou7OrIPyXbp3wmkHB+jjWRnGsAI=
-github.com/chzyer/readline v0.0.0-20180603132655-2972be24d48e/go.mod h1:nSuG5e5PlCu98SY8svDHJxuZscDgtXS6KTTbou5AhLI=
-github.com/chzyer/test v0.0.0-20180213035817-a1ea475d72b1/go.mod h1:Q3SI9o4m/ZMnBNeIyt5eFwwo7qiLfzFZmjNmxjkiQlU=
 github.com/client9/misspell v0.3.4/go.mod h1:qj6jICC3Q7zFZvVWo7KLAzC3yx5G7kyvSDkc90ppPyw=
 github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGXZJjfX53e64911xZQV5JYwmTeXPW+k8Sc=
-github.com/coreos/go-oidc/v3 v3.6.0 h1:AKVxfYw1Gmkn/w96z0DbT/B/xFnzTd3MkZvWLjF4n/o=
-github.com/coreos/go-oidc/v3 v3.6.0/go.mod h1:ZpHUsHBucTUj6WOkrP4E20UPynbLZzhTQ1XKCXkxyPc=
-github.com/cpuguy83/go-md2man/v2 v2.0.2/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
+github.com/coreos/go-oidc/v3 v3.14.1 h1:9ePWwfdwC4QKRlCXsJGou56adA/owXczOzwKdOumLqk=
+github.com/coreos/go-oidc/v3 v3.14.1/go.mod h1:HaZ3szPaZ0e4r6ebqvsLWlk2Tn+aejfmrfah6hnSYEU=
+github.com/cpuguy83/go-md2man/v2 v2.0.3/go.mod h1:tgQtvFlXSQOSOSIRvRPT7W67SCa46tRHOmNcaadrF8o=
 github.com/creack/pty v1.1.9/go.mod h1:oKZEueFk5CKHvIhNR5MUki03XCEU+Q6VDXinZuGJ33E=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
 github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
@@ -24,227 +21,234 @@ github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSs
 github.com/envoyproxy/go-control-plane v0.9.0/go.mod h1:YTl/9mNaCwkRvm6d1a2C3ymFceY/DCBVvsKhRF0iEA4=
 github.com/envoyproxy/go-control-plane v0.9.4/go.mod h1:6rpuAdCZL397s3pYoYcLgu1mIlRU8Am5FuJP05cCM98=
 github.com/envoyproxy/protoc-gen-validate v0.1.0/go.mod h1:iSmxcyjqTsJpI2R4NaDN7+kN2VEUnK/pcBlmesArF7c=
-github.com/fatedier/beego v0.0.0-20171024143340-6c6a4f5bd5eb h1:wCrNShQidLmvVWn/0PikGmpdP0vtQmnvyRg3ZBEhczw=
-github.com/fatedier/beego v0.0.0-20171024143340-6c6a4f5bd5eb/go.mod h1:wx3gB6dbIfBRcucp94PI9Bt3I0F2c/MyNEWuhzpWiwk=
-github.com/fatedier/golib v0.1.1-0.20230725122706-dcbaee8eef40 h1:BVdpWT6viE/mpuRa6txNyRNjtHa1Efrii9Du6/gHfJ0=
-github.com/fatedier/golib v0.1.1-0.20230725122706-dcbaee8eef40/go.mod h1:Lmi9U4VfvdRvonSMh1FgXVy1hCXycVyJk4E9ktokknE=
-github.com/fatedier/kcp-go v2.0.4-0.20190803094908-fe8645b0a904+incompatible h1:ssXat9YXFvigNge/IkkZvFMn8yeYKFX+uI6wn2mLJ74=
-github.com/fatedier/kcp-go v2.0.4-0.20190803094908-fe8645b0a904+incompatible/go.mod h1:YpCOaxj7vvMThhIQ9AfTOPW2sfztQR5WDfs7AflSy4s=
+github.com/fatedier/golib v0.5.1 h1:hcKAnaw5mdI/1KWRGejxR+i1Hn/NvbY5UsMKDr7o13M=
+github.com/fatedier/golib v0.5.1/go.mod h1:W6kIYkIFxHsTzbgqg5piCxIiDo4LzwgTY6R5W8l9NFQ=
 github.com/fatedier/yamux v0.0.0-20230628132301-7aca4898904d h1:ynk1ra0RUqDWQfvFi5KtMiSobkVQ3cNc0ODb8CfIETo=
 github.com/fatedier/yamux v0.0.0-20230628132301-7aca4898904d/go.mod h1:CtWFDAQgb7dxtzFs4tWbplKIe2jSi3+5vKbgIO0SLnQ=
-github.com/go-jose/go-jose/v3 v3.0.0 h1:s6rrhirfEP/CGIoc6p+PZAeogN2SxKav6Wp7+dyMWVo=
-github.com/go-jose/go-jose/v3 v3.0.0/go.mod h1:RNkWWRld676jZEYoV3+XK8L2ZnNSvIsxFMht0mSX+u8=
-github.com/go-logr/logr v1.2.4 h1:g01GSCwiDw2xSZfjJ2/T9M+S6pFdcNtFYsp+Y43HYDQ=
-github.com/go-logr/logr v1.2.4/go.mod h1:jdQByPbusPIv2/zmleS9BjJVeZ6kBagPoEUsqbVz/1A=
-github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572 h1:tfuBGBXKqDEevZMzYi5KSi8KkcZtzBcTgAUUtapy0OI=
-github.com/go-task/slim-sprig v0.0.0-20230315185526-52ccab3ef572/go.mod h1:9Pwr4B2jHnOSGXyyzV8ROjYa2ojvAY6HCGYYfMoC3Ls=
+github.com/go-jose/go-jose/v4 v4.0.5 h1:M6T8+mKZl/+fNNuFHvGIzDz7BTLQPIounk/b9dw3AaE=
+github.com/go-jose/go-jose/v4 v4.0.5/go.mod h1:s3P1lRrkT8igV8D9OjyL4WRyHvjB6a4JSllnOrmmBOA=
+github.com/go-logr/logr v1.4.2 h1:6pFjapn8bFcIbiKo3XT4j/BhANplGihG6tvd+8rYgrY=
+github.com/go-logr/logr v1.4.2/go.mod h1:9T104GzyrTigFIr8wt5mBrctHMim0Nb2HLGrmQ40KvY=
+github.com/go-task/slim-sprig/v3 v3.0.0 h1:sUs3vkvUymDpBKi3qH1YSqBQk9+9D/8M2mN1vB6EwHI=
+github.com/go-task/slim-sprig/v3 v3.0.0/go.mod h1:W848ghGpv3Qj3dhTPRyJypKRiqCdHZiAzKg9hl15HA8=
 github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b/go.mod h1:SBH7ygxi8pfUlaOkMMuAQtPIUF8ecWP5IEl/CR7VP2Q=
 github.com/golang/mock v1.1.1/go.mod h1:oTYuIxOrZwtPieC+H1uAHpcLFnEyAGVDL/k47Jfbm0A=
-github.com/golang/mock v1.6.0 h1:ErTB+efbowRARo13NNdxyJji2egdxLGQhRaY+DUumQc=
-github.com/golang/mock v1.6.0/go.mod h1:p6yTPP+5HYm5mzsMV8JkE6ZKdX+/wYM6Hr+LicevLPs=
 github.com/golang/protobuf v1.2.0/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
-github.com/golang/protobuf v1.3.1/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.2/go.mod h1:6lQm79b+lXiMfvg/cZm0SGofjICqVBUtrP5yJMmIC1U=
 github.com/golang/protobuf v1.3.3/go.mod h1:vzj43D7+SQXF/4pzW/hwtAqwc6iTitCiVSaWz5lYuqw=
-github.com/golang/protobuf v1.3.5/go.mod h1:6O5/vntMXwX2lRkT1hjjk0nAC1IDOTvTlVgjlRvqsdk=
 github.com/golang/protobuf v1.4.0-rc.1/go.mod h1:ceaxUfeHdC40wWswd/P6IGgMaK3YpKi5j83Wpe3EHw8=
 github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:xKAWHe0F5eneWXFV3EuXVDTCmh+JuBKY0li0aMyXATA=
 github.com/golang/protobuf v1.4.0-rc.2/go.mod h1:LlEzMj4AhA7rCAGe4KMBDvJI+AwstrUpVNzEA03Pprs=
 github.com/golang/protobuf v1.4.0-rc.4.0.20200313231945-b860323f09d0/go.mod h1:WU3c8KckQ9AFe+yFwt9sWVRKCVIyN9cPHBJSNnbL67w=
 github.com/golang/protobuf v1.4.0/go.mod h1:jodUvKwWbYaEsadDk5Fwe5c77LiNKVO9IDvqG2KuDX0=
 github.com/golang/protobuf v1.4.2/go.mod h1:oDoupMAO8OvCJWAcko0GGGIgR6R6ocIYbsSw735rRwI=
-github.com/golang/protobuf v1.5.0/go.mod h1:FsONVRAS9T7sI+LIUmWTfcYkHO4aIWwzhcaSAoJOfIk=
-github.com/golang/protobuf v1.5.3 h1:KhyjKVUg7Usr/dYsdSqoFveMYd5ko72D+zANwlG1mmg=
-github.com/golang/protobuf v1.5.3/go.mod h1:XVQd3VNwM+JqD3oG2Ue2ip4fOMUkwXdXDdiuN0vRsmY=
 github.com/golang/snappy v0.0.4 h1:yAGX7huGHXlcLOEtBnF4w7FQwA26wojNCwOYAEhLjQM=
 github.com/golang/snappy v0.0.4/go.mod h1:/XxbfmMg8lxefKM7IXC3fBNl/7bRcc72aCRzEWrmP2Q=
+github.com/google/btree v1.0.1 h1:gK4Kx5IaGY9CD5sPJ36FHiBJ6ZXl0kilRiiCj+jdYp4=
+github.com/google/btree v1.0.1/go.mod h1:xXMiIv4Fb/0kKde4SpL7qlzvu5cMJDRkFDxJfI9uaxA=
 github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
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 golang.org/x/tools v0.0.0-20190524140312-2c0ae7006135/go.mod h1:RgjU9mgBXZiqYHBnxXauZ1Gv1EHHAz9KjViQ78xBX0Q=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
-golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 golang.org/x/tools v0.1.12/go.mod h1:hNGJHUnrk76NpqgfD5Aqm5Crs+Hm0VOH/i9J2+nxYbc=
 golang.org/x/tools v0.6.0/go.mod h1:Xwgl3UAJ/d3gWutnCtw505GrjyAbvKui8lOU390QaIU=
-golang.org/x/tools v0.9.3 h1:Gn1I8+64MsuTb/HpH+LmQtNas23LhUVr3rYZ0eKuaMM=
-golang.org/x/tools v0.9.3/go.mod h1:owI94Op576fPu3cIGQeHs3joujW/2Oc6MtlxbF5dfNc=
+golang.org/x/tools v0.28.0 h1:WuB6qZ4RPCQo5aP3WdKZS7i595EdWqWR8vqJTlwTVK8=
+golang.org/x/tools v0.28.0/go.mod h1:dcIOrVd3mfQKTgrDVQHqCPMWy6lnhfhtX3hLXYVLfRw=
 golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20191011141410-1b5146add898/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
 golang.org/x/xerrors v0.0.0-20191204190536-9bdfabe68543/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
-golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2 h1:B82qJJgjvYKsXS9jeunTOisW56dUokqW/FOteYJJ/yg=
+golang.zx2c4.com/wintun v0.0.0-20230126152724-0fa3db229ce2/go.mod h1:deeaetjYA+DHMHg+sMSMI58GrEteJUUzzw7en6TJQcI=
+golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173 h1:/jFs0duh4rdb8uIfPMv78iAJGcPKDeqAFnaLBropIC4=
+golang.zx2c4.com/wireguard v0.0.0-20231211153847-12269c276173/go.mod h1:tkCQ4FQXmpAgYVh++1cq16/dH4QJtmvpRv19DWGAHSA=
 google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9YwlJXL52JkM=
 google.golang.org/appengine v1.4.0/go.mod h1:xpcJRLb0r/rnEns0DIKYYv+WjYCduHsrkT7/EB5XEv4=
-google.golang.org/appengine v1.6.7 h1:FZR1q0exgwxzPzp/aF+VccGrSfxfPpkBqjIIEq3ru6c=
-google.golang.org/appengine v1.6.7/go.mod h1:8WjMMxjGQR8xUklV/ARdw2HLXBOI7O7uCIDZVag1xfc=
 google.golang.org/genproto v0.0.0-20180817151627-c66870c02cf8/go.mod h1:JiN7NxoALGmiZfu7CAH4rXhgtRTLTxftemlI0sWmxmc=
 google.golang.org/genproto v0.0.0-20190819201941-24fa4b261c55/go.mod h1:DMBHOl98Agz4BDEuKkezgsaosCRResVns1a3J2ZsMNc=
 google.golang.org/grpc v1.19.0/go.mod h1:mqu4LbDTu4XGKhr4mRzUsmM4RtVoemTSY81AxZiDr8c=
@@ -257,12 +261,11 @@ google.golang.org/protobuf v0.0.0-20200228230310-ab0ca4ff8a60/go.mod h1:cfTl7dwQ
 google.golang.org/protobuf v1.20.1-0.20200309200217-e05f789c0967/go.mod h1:A+miEFZTKqfCUM6K7xSMQL9OKL/b6hQv+e19PK+JZNE=
 google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzikPIcrTAo=
 google.golang.org/protobuf v1.23.0/go.mod h1:EGpADcykh3NcUnDUJcl1+ZksZNG86OlYog2l/sGQquU=
-google.golang.org/protobuf v1.26.0-rc.1/go.mod h1:jlhhOSvTdKEhbULTjvd4ARK9grFBp09yW+WbY/TyQbw=
-google.golang.org/protobuf v1.26.0/go.mod h1:9q0QmTI4eRPtz6boOQmLYwt+qCgq0jsYwAQnmE0givc=
-google.golang.org/protobuf v1.31.0 h1:g0LDEJHgrBl9N9r17Ru3sqWhkIx2NB67okBHPwC7hs8=
-google.golang.org/protobuf v1.31.0/go.mod h1:HV8QOd/L58Z+nl8r43ehVNZIU/HEI6OcFqwMG9pJV4I=
+google.golang.org/protobuf v1.34.1 h1:9ddQBjfCyZPOHPUiPxpYESBLc+T8P3E+Vo4IbKZgFWg=
+google.golang.org/protobuf v1.34.1/go.mod h1:c6P6GXX6sHbq/GpV6MGZEdwhWPcYBgnhAHhKbcUYpos=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c h1:Hei/4ADfdWqJk1ZMxUNpqntNwaWcugrBjAiHlqqRiVk=
+gopkg.in/check.v1 v1.0.0-20201130134442-10cb98267c6c/go.mod h1:JHkPIbrfpd72SG/EVd6muEfDQjcINNoR0C8j2r3qZ4Q=
 gopkg.in/ini.v1 v1.67.0 h1:Dgnx+6+nfE+IfzjUEISNeydPJh9AXNNsWbGP9KzCsOA=
 gopkg.in/ini.v1 v1.67.0/go.mod h1:pNLf8WUiyNEtQjuu5G5vTm06TEv9tsIgeAvK8hOrP4k=
 gopkg.in/yaml.v2 v2.4.0 h1:D8xgwECY7CYvx+Y2n4sBz93Jn9JRvxdiyyo8CTfuKaY=
@@ -270,14 +273,16 @@ gopkg.in/yaml.v2 v2.4.0/go.mod h1:RDklbk79AGWmwhnvt/jBztapEOGDOx6ZbXqjP6csGnQ=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
 gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gvisor.dev/gvisor v0.0.0-20230927004350-cbd86285d259 h1:TbRPT0HtzFP3Cno1zZo7yPzEEnfu8EjLfl6IU9VfqkQ=
+gvisor.dev/gvisor v0.0.0-20230927004350-cbd86285d259/go.mod h1:AVgIgHMwK63XvmAzWG9vLQ41YnVHN0du0tEC46fI7yY=
 honnef.co/go/tools v0.0.0-20190102054323-c2f93a96b099/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
 honnef.co/go/tools v0.0.0-20190523083050-ea95bdfd59fc/go.mod h1:rf3lG4BRIbNafJWhAfAdb/ePZxsR/4RtNHQocxwk9r4=
-k8s.io/apimachinery v0.27.4 h1:CdxflD4AF61yewuid0fLl6bM4a3q04jWel0IlP+aYjs=
-k8s.io/apimachinery v0.27.4/go.mod h1:XNfZ6xklnMCOGGFNqXG7bUrQCoR04dh/E7FprV6pb+E=
-k8s.io/client-go v0.27.4 h1:vj2YTtSJ6J4KxaC88P4pMPEQECWMY8gqPqsTgUKzvjk=
-k8s.io/client-go v0.27.4/go.mod h1:ragcly7lUlN0SRPk5/ZkGnDjPknzb37TICq07WhI6Xc=
-k8s.io/utils v0.0.0-20230209194617-a36077c30491 h1:r0BAOLElQnnFhE/ApUsg3iHdVYYPBjNSSOMowRZxxsY=
-k8s.io/utils v0.0.0-20230209194617-a36077c30491/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
+k8s.io/apimachinery v0.28.8 h1:hi/nrxHwk4QLV+W/SHve1bypTE59HCDorLY1stBIxKQ=
+k8s.io/apimachinery v0.28.8/go.mod h1:cBnwIM3fXoRo28SqbV/Ihxf/iviw85KyXOrzxvZQ83U=
+k8s.io/client-go v0.28.8 h1:TE59Tjd87WKvS2FPBTfIKLFX0nQJ4SSHsnDo5IHjgOw=
+k8s.io/client-go v0.28.8/go.mod h1:uDVQ/rPzWpWIy40c6lZ4mUwaEvRWGnpoqSO4FM65P3o=
+k8s.io/utils v0.0.0-20230406110748-d93618cff8a2 h1:qY1Ad8PODbnymg2pRbkyMT/ylpTrCM8P2RJ0yroCyIk=
+k8s.io/utils v0.0.0-20230406110748-d93618cff8a2/go.mod h1:OLgZIPagt7ERELqWJFomSt595RzquPNLL48iOWgYOg0=
 sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd h1:EDPBXCAspyGV4jQlpZSudPeMmr1bNJefnuqLsRAsHZo=
 sigs.k8s.io/json v0.0.0-20221116044647-bc3834ca7abd/go.mod h1:B8JuhiUyNFVKdsE8h686QcCxMaH6HrOAZj4vswFpcB0=
 sigs.k8s.io/yaml v1.3.0 h1:a2VclLzOGrwOHDiV8EfBGhvjHvP46CtW5j6POvhYGGo=

hack/run-e2e.sh

@@ -6,7 +6,7 @@ ROOT=$(unset CDPATH && cd "$(dirname "$SCRIPT")/.." && pwd)
 ginkgo_command=$(which ginkgo 2>/dev/null)
 if [ -z "$ginkgo_command" ]; then
     echo "ginkgo not found, try to install..."
-    go install github.com/onsi/ginkgo/v2/ginkgo@v2.11.0
+    go install github.com/onsi/ginkgo/v2/ginkgo@v2.17.1
 fi
 
 debug=false
@@ -26,5 +26,9 @@ frpsPath=${ROOT}/bin/frps
 if [ "${FRPS_PATH}" ]; then
     frpsPath="${FRPS_PATH}"
 fi
+concurrency="16"
+if [ "${CONCURRENCY}" ]; then
+    concurrency="${CONCURRENCY}"
+fi
 
-ginkgo -nodes=8 --poll-progress-after=60s ${ROOT}/test/e2e -- -frpc-path=${frpcPath} -frps-path=${frpsPath} -log-level=${logLevel} -debug=${debug}
+ginkgo -nodes=${concurrency} --poll-progress-after=60s ${ROOT}/test/e2e -- -frpc-path=${frpcPath} -frps-path=${frpsPath} -log-level=${logLevel} -debug=${debug}

package.sh

@@ -1,3 +1,6 @@
+#!/bin/sh
+set -e
+
 # compile for version
 make
 if [ $? -ne 0 ]; then
@@ -14,48 +17,57 @@ make -f ./Makefile.cross-compiles
 rm -rf ./release/packages
 mkdir -p ./release/packages
 
-os_all='linux windows darwin freebsd'
-arch_all='386 amd64 arm arm64 mips64 mips64le mips mipsle riscv64'
+os_all='linux windows darwin freebsd openbsd android'
+arch_all='386 amd64 arm arm64 mips64 mips64le mips mipsle riscv64 loong64'
+extra_all='_ hf'
 
 cd ./release
 
 for os in $os_all; do
     for arch in $arch_all; do
-        frp_dir_name="frp_${frp_version}_${os}_${arch}"
-        frp_path="./packages/frp_${frp_version}_${os}_${arch}"
+        for extra in $extra_all; do
+            suffix="${os}_${arch}"
+            if [ "x${extra}" != x"_" ]; then
+                suffix="${os}_${arch}_${extra}"
+            fi
+            frp_dir_name="frp_${frp_version}_${suffix}"
+            frp_path="./packages/frp_${frp_version}_${suffix}"
 
-        if [ "x${os}" = x"windows" ]; then
-            if [ ! -f "./frpc_${os}_${arch}.exe" ]; then
-                continue
-            fi
-            if [ ! -f "./frps_${os}_${arch}.exe" ]; then
-                continue
-            fi
-            mkdir ${frp_path}
-            mv ./frpc_${os}_${arch}.exe ${frp_path}/frpc.exe
-            mv ./frps_${os}_${arch}.exe ${frp_path}/frps.exe
-        else
-            if [ ! -f "./frpc_${os}_${arch}" ]; then
-                continue
-            fi
-            if [ ! -f "./frps_${os}_${arch}" ]; then
-                continue
-            fi
-            mkdir ${frp_path}
-            mv ./frpc_${os}_${arch} ${frp_path}/frpc
-            mv ./frps_${os}_${arch} ${frp_path}/frps
-        fi  
-        cp ../LICENSE ${frp_path}
+            if [ "x${os}" = x"windows" ]; then
+                if [ ! -f "./frpc_${os}_${arch}.exe" ]; then
+                    continue
+                fi
+                if [ ! -f "./frps_${os}_${arch}.exe" ]; then
+                    continue
+                fi
+                mkdir ${frp_path}
+                mv ./frpc_${os}_${arch}.exe ${frp_path}/frpc.exe
+                mv ./frps_${os}_${arch}.exe ${frp_path}/frps.exe
+            else
+                if [ ! -f "./frpc_${suffix}" ]; then
+                    continue
+                fi
+                if [ ! -f "./frps_${suffix}" ]; then
+                    continue
+                fi
+                mkdir ${frp_path}
+                mv ./frpc_${suffix} ${frp_path}/frpc
+                mv ./frps_${suffix} ${frp_path}/frps
+            fi  
+            cp ../LICENSE ${frp_path}
+            cp -f ../conf/frpc.toml ${frp_path}
+            cp -f ../conf/frps.toml ${frp_path}
 
-        # packages
-        cd ./packages
-        if [ "x${os}" = x"windows" ]; then
-            zip -rq ${frp_dir_name}.zip ${frp_dir_name}
-        else
-            tar -zcf ${frp_dir_name}.tar.gz ${frp_dir_name}
-        fi  
-        cd ..
-        rm -rf ${frp_path}
+            # packages
+            cd ./packages
+            if [ "x${os}" = x"windows" ]; then
+                zip -rq ${frp_dir_name}.zip ${frp_dir_name}
+            else
+                tar -zcf ${frp_dir_name}.tar.gz ${frp_dir_name}
+            fi  
+            cd ..
+            rm -rf ${frp_path}
+        done
     done
 done
 

pkg/auth/auth.go

@@ -50,7 +50,8 @@ func NewAuthVerifier(cfg v1.AuthServerConfig) (authVerifier Verifier) {
 	case v1.AuthMethodToken:
 		authVerifier = NewTokenAuth(cfg.AdditionalScopes, cfg.Token)
 	case v1.AuthMethodOIDC:
-		authVerifier = NewOidcAuthVerifier(cfg.AdditionalScopes, cfg.OIDC)
+		tokenVerifier := NewTokenVerifier(cfg.OIDC)
+		authVerifier = NewOidcAuthVerifier(cfg.AdditionalScopes, tokenVerifier)
 	}
 	return authVerifier
 }

pkg/auth/oidc.go

@@ -17,9 +17,9 @@ package auth
 import (
 	"context"
 	"fmt"
+	"slices"
 
 	"github.com/coreos/go-oidc/v3/oidc"
-	"github.com/samber/lo"
 	"golang.org/x/oauth2/clientcredentials"
 
 	v1 "github.com/fatedier/frp/pkg/config/v1"
@@ -70,7 +70,7 @@ func (auth *OidcAuthProvider) SetLogin(loginMsg *msg.Login) (err error) {
 }
 
 func (auth *OidcAuthProvider) SetPing(pingMsg *msg.Ping) (err error) {
-	if !lo.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
+	if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
 		return nil
 	}
 
@@ -79,7 +79,7 @@ func (auth *OidcAuthProvider) SetPing(pingMsg *msg.Ping) (err error) {
 }
 
 func (auth *OidcAuthProvider) SetNewWorkConn(newWorkConnMsg *msg.NewWorkConn) (err error) {
-	if !lo.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
+	if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
 		return nil
 	}
 
@@ -87,14 +87,18 @@ func (auth *OidcAuthProvider) SetNewWorkConn(newWorkConnMsg *msg.NewWorkConn) (e
 	return err
 }
 
+type TokenVerifier interface {
+	Verify(context.Context, string) (*oidc.IDToken, error)
+}
+
 type OidcAuthConsumer struct {
 	additionalAuthScopes []v1.AuthScope
 
-	verifier         *oidc.IDTokenVerifier
-	subjectFromLogin string
+	verifier          TokenVerifier
+	subjectsFromLogin []string
 }
 
-func NewOidcAuthVerifier(additionalAuthScopes []v1.AuthScope, cfg v1.AuthOIDCServerConfig) *OidcAuthConsumer {
+func NewTokenVerifier(cfg v1.AuthOIDCServerConfig) TokenVerifier {
 	provider, err := oidc.NewProvider(context.Background(), cfg.Issuer)
 	if err != nil {
 		panic(err)
@@ -105,9 +109,14 @@ func NewOidcAuthVerifier(additionalAuthScopes []v1.AuthScope, cfg v1.AuthOIDCSer
 		SkipExpiryCheck:   cfg.SkipExpiryCheck,
 		SkipIssuerCheck:   cfg.SkipIssuerCheck,
 	}
+	return provider.Verifier(&verifierConf)
+}
+
+func NewOidcAuthVerifier(additionalAuthScopes []v1.AuthScope, verifier TokenVerifier) *OidcAuthConsumer {
 	return &OidcAuthConsumer{
 		additionalAuthScopes: additionalAuthScopes,
-		verifier:             provider.Verifier(&verifierConf),
+		verifier:             verifier,
+		subjectsFromLogin:    []string{},
 	}
 }
 
@@ -116,7 +125,9 @@ func (auth *OidcAuthConsumer) VerifyLogin(loginMsg *msg.Login) (err error) {
 	if err != nil {
 		return fmt.Errorf("invalid OIDC token in login: %v", err)
 	}
-	auth.subjectFromLogin = token.Subject
+	if !slices.Contains(auth.subjectsFromLogin, token.Subject) {
+		auth.subjectsFromLogin = append(auth.subjectsFromLogin, token.Subject)
+	}
 	return nil
 }
 
@@ -125,17 +136,17 @@ func (auth *OidcAuthConsumer) verifyPostLoginToken(privilegeKey string) (err err
 	if err != nil {
 		return fmt.Errorf("invalid OIDC token in ping: %v", err)
 	}
-	if token.Subject != auth.subjectFromLogin {
+	if !slices.Contains(auth.subjectsFromLogin, token.Subject) {
 		return fmt.Errorf("received different OIDC subject in login and ping. "+
-			"original subject: %s, "+
+			"original subjects: %s, "+
 			"new subject: %s",
-			auth.subjectFromLogin, token.Subject)
+			auth.subjectsFromLogin, token.Subject)
 	}
 	return nil
 }
 
 func (auth *OidcAuthConsumer) VerifyPing(pingMsg *msg.Ping) (err error) {
-	if !lo.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
+	if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
 		return nil
 	}
 
@@ -143,7 +154,7 @@ func (auth *OidcAuthConsumer) VerifyPing(pingMsg *msg.Ping) (err error) {
 }
 
 func (auth *OidcAuthConsumer) VerifyNewWorkConn(newWorkConnMsg *msg.NewWorkConn) (err error) {
-	if !lo.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
+	if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
 		return nil
 	}
 

pkg/auth/oidc_test.go

@@ -0,0 +1,64 @@
+package auth_test
+
+import (
+	"context"
+	"testing"
+	"time"
+
+	"github.com/coreos/go-oidc/v3/oidc"
+	"github.com/stretchr/testify/require"
+
+	"github.com/fatedier/frp/pkg/auth"
+	v1 "github.com/fatedier/frp/pkg/config/v1"
+	"github.com/fatedier/frp/pkg/msg"
+)
+
+type mockTokenVerifier struct{}
+
+func (m *mockTokenVerifier) Verify(ctx context.Context, subject string) (*oidc.IDToken, error) {
+	return &oidc.IDToken{
+		Subject: subject,
+	}, nil
+}
+
+func TestPingWithEmptySubjectFromLoginFails(t *testing.T) {
+	r := require.New(t)
+	consumer := auth.NewOidcAuthVerifier([]v1.AuthScope{v1.AuthScopeHeartBeats}, &mockTokenVerifier{})
+	err := consumer.VerifyPing(&msg.Ping{
+		PrivilegeKey: "ping-without-login",
+		Timestamp:    time.Now().UnixMilli(),
+	})
+	r.Error(err)
+	r.Contains(err.Error(), "received different OIDC subject in login and ping")
+}
+
+func TestPingAfterLoginWithNewSubjectSucceeds(t *testing.T) {
+	r := require.New(t)
+	consumer := auth.NewOidcAuthVerifier([]v1.AuthScope{v1.AuthScopeHeartBeats}, &mockTokenVerifier{})
+	err := consumer.VerifyLogin(&msg.Login{
+		PrivilegeKey: "ping-after-login",
+	})
+	r.NoError(err)
+
+	err = consumer.VerifyPing(&msg.Ping{
+		PrivilegeKey: "ping-after-login",
+		Timestamp:    time.Now().UnixMilli(),
+	})
+	r.NoError(err)
+}
+
+func TestPingAfterLoginWithDifferentSubjectFails(t *testing.T) {
+	r := require.New(t)
+	consumer := auth.NewOidcAuthVerifier([]v1.AuthScope{v1.AuthScopeHeartBeats}, &mockTokenVerifier{})
+	err := consumer.VerifyLogin(&msg.Login{
+		PrivilegeKey: "login-with-first-subject",
+	})
+	r.NoError(err)
+
+	err = consumer.VerifyPing(&msg.Ping{
+		PrivilegeKey: "ping-with-different-subject",
+		Timestamp:    time.Now().UnixMilli(),
+	})
+	r.Error(err)
+	r.Contains(err.Error(), "received different OIDC subject in login and ping")
+}

pkg/auth/pass.go

@@ -0,0 +1,31 @@
+// Copyright 2023 The frp Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package auth
+
+import (
+	"github.com/fatedier/frp/pkg/msg"
+)
+
+var AlwaysPassVerifier = &alwaysPass{}
+
+var _ Verifier = &alwaysPass{}
+
+type alwaysPass struct{}
+
+func (*alwaysPass) VerifyLogin(*msg.Login) error { return nil }
+
+func (*alwaysPass) VerifyPing(*msg.Ping) error { return nil }
+
+func (*alwaysPass) VerifyNewWorkConn(*msg.NewWorkConn) error { return nil }

pkg/auth/token.go

@@ -16,10 +16,9 @@ package auth
 
 import (
 	"fmt"
+	"slices"
 	"time"
 
-	"github.com/samber/lo"
-
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 	"github.com/fatedier/frp/pkg/msg"
 	"github.com/fatedier/frp/pkg/util/util"
@@ -43,7 +42,7 @@ func (auth *TokenAuthSetterVerifier) SetLogin(loginMsg *msg.Login) error {
 }
 
 func (auth *TokenAuthSetterVerifier) SetPing(pingMsg *msg.Ping) error {
-	if !lo.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
+	if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
 		return nil
 	}
 
@@ -53,7 +52,7 @@ func (auth *TokenAuthSetterVerifier) SetPing(pingMsg *msg.Ping) error {
 }
 
 func (auth *TokenAuthSetterVerifier) SetNewWorkConn(newWorkConnMsg *msg.NewWorkConn) error {
-	if !lo.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
+	if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
 		return nil
 	}
 
@@ -70,7 +69,7 @@ func (auth *TokenAuthSetterVerifier) VerifyLogin(m *msg.Login) error {
 }
 
 func (auth *TokenAuthSetterVerifier) VerifyPing(m *msg.Ping) error {
-	if !lo.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
+	if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeHeartBeats) {
 		return nil
 	}
 
@@ -81,7 +80,7 @@ func (auth *TokenAuthSetterVerifier) VerifyPing(m *msg.Ping) error {
 }
 
 func (auth *TokenAuthSetterVerifier) VerifyNewWorkConn(m *msg.NewWorkConn) error {
-	if !lo.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
+	if !slices.Contains(auth.additionalAuthScopes, v1.AuthScopeNewWorkConns) {
 		return nil
 	}
 

pkg/config/flags.go

@@ -0,0 +1,258 @@
+// Copyright 2023 The frp Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"fmt"
+	"strconv"
+	"strings"
+
+	"github.com/spf13/cobra"
+	"github.com/spf13/pflag"
+
+	"github.com/fatedier/frp/pkg/config/types"
+	v1 "github.com/fatedier/frp/pkg/config/v1"
+	"github.com/fatedier/frp/pkg/config/v1/validation"
+)
+
+// WordSepNormalizeFunc changes all flags that contain "_" separators
+func WordSepNormalizeFunc(f *pflag.FlagSet, name string) pflag.NormalizedName {
+	if strings.Contains(name, "_") {
+		return pflag.NormalizedName(strings.ReplaceAll(name, "_", "-"))
+	}
+	return pflag.NormalizedName(name)
+}
+
+type RegisterFlagOption func(*registerFlagOptions)
+
+type registerFlagOptions struct {
+	sshMode bool
+}
+
+func WithSSHMode() RegisterFlagOption {
+	return func(o *registerFlagOptions) {
+		o.sshMode = true
+	}
+}
+
+type BandwidthQuantityFlag struct {
+	V *types.BandwidthQuantity
+}
+
+func (f *BandwidthQuantityFlag) Set(s string) error {
+	return f.V.UnmarshalString(s)
+}
+
+func (f *BandwidthQuantityFlag) String() string {
+	return f.V.String()
+}
+
+func (f *BandwidthQuantityFlag) Type() string {
+	return "string"
+}
+
+func RegisterProxyFlags(cmd *cobra.Command, c v1.ProxyConfigurer, opts ...RegisterFlagOption) {
+	registerProxyBaseConfigFlags(cmd, c.GetBaseConfig(), opts...)
+
+	switch cc := c.(type) {
+	case *v1.TCPProxyConfig:
+		cmd.Flags().IntVarP(&cc.RemotePort, "remote_port", "r", 0, "remote port")
+	case *v1.UDPProxyConfig:
+		cmd.Flags().IntVarP(&cc.RemotePort, "remote_port", "r", 0, "remote port")
+	case *v1.HTTPProxyConfig:
+		registerProxyDomainConfigFlags(cmd, &cc.DomainConfig)
+		cmd.Flags().StringSliceVarP(&cc.Locations, "locations", "", []string{}, "locations")
+		cmd.Flags().StringVarP(&cc.HTTPUser, "http_user", "", "", "http auth user")
+		cmd.Flags().StringVarP(&cc.HTTPPassword, "http_pwd", "", "", "http auth password")
+		cmd.Flags().StringVarP(&cc.HostHeaderRewrite, "host_header_rewrite", "", "", "host header rewrite")
+	case *v1.HTTPSProxyConfig:
+		registerProxyDomainConfigFlags(cmd, &cc.DomainConfig)
+	case *v1.TCPMuxProxyConfig:
+		registerProxyDomainConfigFlags(cmd, &cc.DomainConfig)
+		cmd.Flags().StringVarP(&cc.Multiplexer, "mux", "", "", "multiplexer")
+		cmd.Flags().StringVarP(&cc.HTTPUser, "http_user", "", "", "http auth user")
+		cmd.Flags().StringVarP(&cc.HTTPPassword, "http_pwd", "", "", "http auth password")
+	case *v1.STCPProxyConfig:
+		cmd.Flags().StringVarP(&cc.Secretkey, "sk", "", "", "secret key")
+		cmd.Flags().StringSliceVarP(&cc.AllowUsers, "allow_users", "", []string{}, "allow visitor users")
+	case *v1.SUDPProxyConfig:
+		cmd.Flags().StringVarP(&cc.Secretkey, "sk", "", "", "secret key")
+		cmd.Flags().StringSliceVarP(&cc.AllowUsers, "allow_users", "", []string{}, "allow visitor users")
+	case *v1.XTCPProxyConfig:
+		cmd.Flags().StringVarP(&cc.Secretkey, "sk", "", "", "secret key")
+		cmd.Flags().StringSliceVarP(&cc.AllowUsers, "allow_users", "", []string{}, "allow visitor users")
+	}
+}
+
+func registerProxyBaseConfigFlags(cmd *cobra.Command, c *v1.ProxyBaseConfig, opts ...RegisterFlagOption) {
+	if c == nil {
+		return
+	}
+	options := &registerFlagOptions{}
+	for _, opt := range opts {
+		opt(options)
+	}
+
+	cmd.Flags().StringVarP(&c.Name, "proxy_name", "n", "", "proxy name")
+	cmd.Flags().StringToStringVarP(&c.Metadatas, "metadatas", "", nil, "metadata key-value pairs (e.g., key1=value1,key2=value2)")
+	cmd.Flags().StringToStringVarP(&c.Annotations, "annotations", "", nil, "annotation key-value pairs (e.g., key1=value1,key2=value2)")
+
+	if !options.sshMode {
+		cmd.Flags().StringVarP(&c.LocalIP, "local_ip", "i", "127.0.0.1", "local ip")
+		cmd.Flags().IntVarP(&c.LocalPort, "local_port", "l", 0, "local port")
+		cmd.Flags().BoolVarP(&c.Transport.UseEncryption, "ue", "", false, "use encryption")
+		cmd.Flags().BoolVarP(&c.Transport.UseCompression, "uc", "", false, "use compression")
+		cmd.Flags().StringVarP(&c.Transport.BandwidthLimitMode, "bandwidth_limit_mode", "", types.BandwidthLimitModeClient, "bandwidth limit mode")
+		cmd.Flags().VarP(&BandwidthQuantityFlag{V: &c.Transport.BandwidthLimit}, "bandwidth_limit", "", "bandwidth limit (e.g. 100KB or 1MB)")
+	}
+}
+
+func registerProxyDomainConfigFlags(cmd *cobra.Command, c *v1.DomainConfig) {
+	if c == nil {
+		return
+	}
+	cmd.Flags().StringSliceVarP(&c.CustomDomains, "custom_domain", "d", []string{}, "custom domains")
+	cmd.Flags().StringVarP(&c.SubDomain, "sd", "", "", "sub domain")
+}
+
+func RegisterVisitorFlags(cmd *cobra.Command, c v1.VisitorConfigurer, opts ...RegisterFlagOption) {
+	registerVisitorBaseConfigFlags(cmd, c.GetBaseConfig(), opts...)
+
+	// add visitor flags if exist
+}
+
+func registerVisitorBaseConfigFlags(cmd *cobra.Command, c *v1.VisitorBaseConfig, _ ...RegisterFlagOption) {
+	if c == nil {
+		return
+	}
+	cmd.Flags().StringVarP(&c.Name, "visitor_name", "n", "", "visitor name")
+	cmd.Flags().BoolVarP(&c.Transport.UseEncryption, "ue", "", false, "use encryption")
+	cmd.Flags().BoolVarP(&c.Transport.UseCompression, "uc", "", false, "use compression")
+	cmd.Flags().StringVarP(&c.SecretKey, "sk", "", "", "secret key")
+	cmd.Flags().StringVarP(&c.ServerName, "server_name", "", "", "server name")
+	cmd.Flags().StringVarP(&c.ServerUser, "server-user", "", "", "server user")
+	cmd.Flags().StringVarP(&c.BindAddr, "bind_addr", "", "", "bind addr")
+	cmd.Flags().IntVarP(&c.BindPort, "bind_port", "", 0, "bind port")
+}
+
+func RegisterClientCommonConfigFlags(cmd *cobra.Command, c *v1.ClientCommonConfig, opts ...RegisterFlagOption) {
+	options := &registerFlagOptions{}
+	for _, opt := range opts {
+		opt(options)
+	}
+
+	if !options.sshMode {
+		cmd.PersistentFlags().StringVarP(&c.ServerAddr, "server_addr", "s", "127.0.0.1", "frp server's address")
+		cmd.PersistentFlags().IntVarP(&c.ServerPort, "server_port", "P", 7000, "frp server's port")
+		cmd.PersistentFlags().StringVarP(&c.Transport.Protocol, "protocol", "p", "tcp",
+			fmt.Sprintf("optional values are %v", validation.SupportedTransportProtocols))
+		cmd.PersistentFlags().StringVarP(&c.Log.Level, "log_level", "", "info", "log level")
+		cmd.PersistentFlags().StringVarP(&c.Log.To, "log_file", "", "console", "console or file path")
+		cmd.PersistentFlags().Int64VarP(&c.Log.MaxDays, "log_max_days", "", 3, "log file reversed days")
+		cmd.PersistentFlags().BoolVarP(&c.Log.DisablePrintColor, "disable_log_color", "", false, "disable log color in console")
+		cmd.PersistentFlags().StringVarP(&c.Transport.TLS.ServerName, "tls_server_name", "", "", "specify the custom server name of tls certificate")
+		cmd.PersistentFlags().StringVarP(&c.DNSServer, "dns_server", "", "", "specify dns server instead of using system default one")
+		c.Transport.TLS.Enable = cmd.PersistentFlags().BoolP("tls_enable", "", true, "enable frpc tls")
+	}
+	cmd.PersistentFlags().StringVarP(&c.User, "user", "u", "", "user")
+	cmd.PersistentFlags().StringVarP(&c.Auth.Token, "token", "t", "", "auth token")
+}
+
+type PortsRangeSliceFlag struct {
+	V *[]types.PortsRange
+}
+
+func (f *PortsRangeSliceFlag) String() string {
+	if f.V == nil {
+		return ""
+	}
+	return types.PortsRangeSlice(*f.V).String()
+}
+
+func (f *PortsRangeSliceFlag) Set(s string) error {
+	slice, err := types.NewPortsRangeSliceFromString(s)
+	if err != nil {
+		return err
+	}
+	*f.V = slice
+	return nil
+}
+
+func (f *PortsRangeSliceFlag) Type() string {
+	return "string"
+}
+
+type BoolFuncFlag struct {
+	TrueFunc  func()
+	FalseFunc func()
+
+	v bool
+}
+
+func (f *BoolFuncFlag) String() string {
+	return strconv.FormatBool(f.v)
+}
+
+func (f *BoolFuncFlag) Set(s string) error {
+	f.v = strconv.FormatBool(f.v) == "true"
+
+	if !f.v {
+		if f.FalseFunc != nil {
+			f.FalseFunc()
+		}
+		return nil
+	}
+
+	if f.TrueFunc != nil {
+		f.TrueFunc()
+	}
+	return nil
+}
+
+func (f *BoolFuncFlag) Type() string {
+	return "bool"
+}
+
+func RegisterServerConfigFlags(cmd *cobra.Command, c *v1.ServerConfig, opts ...RegisterFlagOption) {
+	cmd.PersistentFlags().StringVarP(&c.BindAddr, "bind_addr", "", "0.0.0.0", "bind address")
+	cmd.PersistentFlags().IntVarP(&c.BindPort, "bind_port", "p", 7000, "bind port")
+	cmd.PersistentFlags().IntVarP(&c.KCPBindPort, "kcp_bind_port", "", 0, "kcp bind udp port")
+	cmd.PersistentFlags().IntVarP(&c.QUICBindPort, "quic_bind_port", "", 0, "quic bind udp port")
+	cmd.PersistentFlags().StringVarP(&c.ProxyBindAddr, "proxy_bind_addr", "", "0.0.0.0", "proxy bind address")
+	cmd.PersistentFlags().IntVarP(&c.VhostHTTPPort, "vhost_http_port", "", 0, "vhost http port")
+	cmd.PersistentFlags().IntVarP(&c.VhostHTTPSPort, "vhost_https_port", "", 0, "vhost https port")
+	cmd.PersistentFlags().Int64VarP(&c.VhostHTTPTimeout, "vhost_http_timeout", "", 60, "vhost http response header timeout")
+	cmd.PersistentFlags().StringVarP(&c.WebServer.Addr, "dashboard_addr", "", "0.0.0.0", "dashboard address")
+	cmd.PersistentFlags().IntVarP(&c.WebServer.Port, "dashboard_port", "", 0, "dashboard port")
+	cmd.PersistentFlags().StringVarP(&c.WebServer.User, "dashboard_user", "", "admin", "dashboard user")
+	cmd.PersistentFlags().StringVarP(&c.WebServer.Password, "dashboard_pwd", "", "admin", "dashboard password")
+	cmd.PersistentFlags().BoolVarP(&c.EnablePrometheus, "enable_prometheus", "", false, "enable prometheus dashboard")
+	cmd.PersistentFlags().StringVarP(&c.Log.To, "log_file", "", "console", "log file")
+	cmd.PersistentFlags().StringVarP(&c.Log.Level, "log_level", "", "info", "log level")
+	cmd.PersistentFlags().Int64VarP(&c.Log.MaxDays, "log_max_days", "", 3, "log max days")
+	cmd.PersistentFlags().BoolVarP(&c.Log.DisablePrintColor, "disable_log_color", "", false, "disable log color in console")
+	cmd.PersistentFlags().StringVarP(&c.Auth.Token, "token", "t", "", "auth token")
+	cmd.PersistentFlags().StringVarP(&c.SubDomainHost, "subdomain_host", "", "", "subdomain host")
+	cmd.PersistentFlags().VarP(&PortsRangeSliceFlag{V: &c.AllowPorts}, "allow_ports", "", "allow ports")
+	cmd.PersistentFlags().Int64VarP(&c.MaxPortsPerClient, "max_ports_per_client", "", 0, "max ports per client")
+	cmd.PersistentFlags().BoolVarP(&c.Transport.TLS.Force, "tls_only", "", false, "frps tls only")
+
+	webServerTLS := v1.TLSConfig{}
+	cmd.PersistentFlags().StringVarP(&webServerTLS.CertFile, "dashboard_tls_cert_file", "", "", "dashboard tls cert file")
+	cmd.PersistentFlags().StringVarP(&webServerTLS.KeyFile, "dashboard_tls_key_file", "", "", "dashboard tls key file")
+	cmd.PersistentFlags().VarP(&BoolFuncFlag{
+		TrueFunc: func() { c.WebServer.TLS = &webServerTLS },
+	}, "dashboard_tls_mode", "", "if enable dashboard tls mode")
+}

pkg/config/legacy/client.go

@@ -18,9 +18,9 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"slices"
 	"strings"
 
-	"github.com/samber/lo"
 	"gopkg.in/ini.v1"
 
 	legacyauth "github.com/fatedier/frp/pkg/auth/legacy"
@@ -99,7 +99,7 @@ type ClientCommonConf struct {
 	// the server must have TCP multiplexing enabled as well. By default, this
 	// value is true.
 	TCPMux bool `ini:"tcp_mux" json:"tcp_mux"`
-	// TCPMuxKeepaliveInterval specifies the keep alive interval for TCP stream multipler.
+	// TCPMuxKeepaliveInterval specifies the keep alive interval for TCP stream multiplier.
 	// If TCPMux is true, heartbeat of application layer is unnecessary because it can only rely on heartbeat in TCPMux.
 	TCPMuxKeepaliveInterval int64 `ini:"tcp_mux_keepalive_interval" json:"tcp_mux_keepalive_interval"`
 	// User specifies a prefix for proxy names to distinguish them from other
@@ -170,7 +170,7 @@ type ClientCommonConf struct {
 }
 
 // Supported sources including: string(file path), []byte, Reader interface.
-func UnmarshalClientConfFromIni(source interface{}) (ClientCommonConf, error) {
+func UnmarshalClientConfFromIni(source any) (ClientCommonConf, error) {
 	f, err := ini.LoadSources(ini.LoadOptions{
 		Insensitive:         false,
 		InsensitiveSections: false,
@@ -203,7 +203,7 @@ func UnmarshalClientConfFromIni(source interface{}) (ClientCommonConf, error) {
 // otherwise just start proxies in startProxy map
 func LoadAllProxyConfsFromIni(
 	prefix string,
-	source interface{},
+	source any,
 	start []string,
 ) (map[string]ProxyConf, map[string]VisitorConf, error) {
 	f, err := ini.LoadSources(ini.LoadOptions{
@@ -345,35 +345,19 @@ func copySection(source, target *ini.Section) {
 }
 
 // GetDefaultClientConf returns a client configuration with default values.
+// Note: Some default values here will be set to empty and will be converted to them
+// new configuration through the 'Complete' function to set them as the default
+// values of the new configuration.
 func GetDefaultClientConf() ClientCommonConf {
 	return ClientCommonConf{
 		ClientConfig:              legacyauth.GetDefaultClientConf(),
-		ServerAddr:                "0.0.0.0",
-		ServerPort:                7000,
-		NatHoleSTUNServer:         "stun.easyvoip.com:3478",
-		DialServerTimeout:         10,
-		DialServerKeepAlive:       7200,
-		HTTPProxy:                 os.Getenv("http_proxy"),
-		LogFile:                   "console",
-		LogWay:                    "console",
-		LogLevel:                  "info",
-		LogMaxDays:                3,
-		AdminAddr:                 "127.0.0.1",
-		PoolCount:                 1,
 		TCPMux:                    true,
-		TCPMuxKeepaliveInterval:   60,
 		LoginFailExit:             true,
-		Start:                     make([]string, 0),
 		Protocol:                  "tcp",
-		QUICKeepalivePeriod:       10,
-		QUICMaxIdleTimeout:        30,
-		QUICMaxIncomingStreams:    100000,
+		Start:                     make([]string, 0),
 		TLSEnable:                 true,
 		DisableCustomTLSFirstByte: true,
-		HeartbeatInterval:         30,
-		HeartbeatTimeout:          90,
 		Metas:                     make(map[string]string),
-		UDPPacketSize:             1500,
 		IncludeConfigFiles:        make([]string, 0),
 	}
 }
@@ -399,7 +383,7 @@ func (cfg *ClientCommonConf) Validate() error {
 		}
 	}
 
-	if !lo.Contains([]string{"tcp", "kcp", "quic", "websocket", "wss"}, cfg.Protocol) {
+	if !slices.Contains([]string{"tcp", "kcp", "quic", "websocket", "wss"}, cfg.Protocol) {
 		return fmt.Errorf("invalid protocol")
 	}
 

pkg/config/legacy/conversion.go

@@ -71,6 +71,7 @@ func Convert_ClientCommonConf_To_v1(conf *ClientCommonConf) *v1.ClientCommonConf
 
 	out.WebServer.Addr = conf.AdminAddr
 	out.WebServer.Port = conf.AdminPort
+	out.WebServer.User = conf.AdminUser
 	out.WebServer.Password = conf.AdminPwd
 	out.WebServer.AssetsDir = conf.AssetsDir
 	out.WebServer.PprofEnable = conf.PprofEnable
@@ -174,6 +175,9 @@ func transformHeadersFromPluginParams(params map[string]string) v1.HeaderOperati
 			continue
 		}
 		if k = strings.TrimPrefix(k, "plugin_header_"); k != "" {
+			if out.Set == nil {
+				out.Set = make(map[string]string)
+			}
 			out.Set[k] = v
 		}
 	}

pkg/config/legacy/parse.go

@@ -23,7 +23,7 @@ import (
 
 func ParseClientConfig(filePath string) (
 	cfg ClientCommonConf,
-	pxyCfgs map[string]ProxyConf,
+	proxyCfgs map[string]ProxyConf,
 	visitorCfgs map[string]VisitorConf,
 	err error,
 ) {
@@ -56,7 +56,7 @@ func ParseClientConfig(filePath string) (
 	configBuffer.Write(buf)
 
 	// Parse all proxy and visitor configs.
-	pxyCfgs, visitorCfgs, err = LoadAllProxyConfsFromIni(cfg.User, configBuffer.Bytes(), cfg.Start)
+	proxyCfgs, visitorCfgs, err = LoadAllProxyConfsFromIni(cfg.User, configBuffer.Bytes(), cfg.Start)
 	if err != nil {
 		return
 	}

pkg/config/legacy/server.go

@@ -139,7 +139,7 @@ type ServerCommonConf struct {
 	// from a client to share a single TCP connection. By default, this value
 	// is true.
 	TCPMux bool `ini:"tcp_mux" json:"tcp_mux"`
-	// TCPMuxKeepaliveInterval specifies the keep alive interval for TCP stream multipler.
+	// TCPMuxKeepaliveInterval specifies the keep alive interval for TCP stream multiplier.
 	// If TCPMux is true, heartbeat of application layer is unnecessary because it can only rely on heartbeat in TCPMux.
 	TCPMuxKeepaliveInterval int64 `ini:"tcp_mux_keepalive_interval" json:"tcp_mux_keepalive_interval"`
 	// TCPKeepAlive specifies the interval between keep-alive probes for an active network connection between frpc and frps.
@@ -200,38 +200,24 @@ type ServerCommonConf struct {
 	NatHoleAnalysisDataReserveHours int64 `ini:"nat_hole_analysis_data_reserve_hours" json:"nat_hole_analysis_data_reserve_hours"`
 }
 
-// GetDefaultServerConf returns a server configuration with reasonable
-// defaults.
+// GetDefaultServerConf returns a server configuration with reasonable defaults.
+// Note: Some default values here will be set to empty and will be converted to them
+// new configuration through the 'Complete' function to set them as the default
+// values of the new configuration.
 func GetDefaultServerConf() ServerCommonConf {
 	return ServerCommonConf{
-		ServerConfig:                    legacyauth.GetDefaultServerConf(),
-		BindAddr:                        "0.0.0.0",
-		BindPort:                        7000,
-		QUICKeepalivePeriod:             10,
-		QUICMaxIdleTimeout:              30,
-		QUICMaxIncomingStreams:          100000,
-		VhostHTTPTimeout:                60,
-		DashboardAddr:                   "0.0.0.0",
-		LogFile:                         "console",
-		LogWay:                          "console",
-		LogLevel:                        "info",
-		LogMaxDays:                      3,
-		DetailedErrorsToClient:          true,
-		TCPMux:                          true,
-		TCPMuxKeepaliveInterval:         60,
-		TCPKeepAlive:                    7200,
-		AllowPorts:                      make(map[int]struct{}),
-		MaxPoolCount:                    5,
-		MaxPortsPerClient:               0,
-		HeartbeatTimeout:                90,
-		UserConnTimeout:                 10,
-		HTTPPlugins:                     make(map[string]HTTPPluginOptions),
-		UDPPacketSize:                   1500,
-		NatHoleAnalysisDataReserveHours: 7 * 24,
+		ServerConfig:           legacyauth.GetDefaultServerConf(),
+		DashboardAddr:          "0.0.0.0",
+		LogFile:                "console",
+		LogWay:                 "console",
+		DetailedErrorsToClient: true,
+		TCPMux:                 true,
+		AllowPorts:             make(map[int]struct{}),
+		HTTPPlugins:            make(map[string]HTTPPluginOptions),
 	}
 }
 
-func UnmarshalServerConfFromIni(source interface{}) (ServerCommonConf, error) {
+func UnmarshalServerConfFromIni(source any) (ServerCommonConf, error) {
 	f, err := ini.LoadSources(ini.LoadOptions{
 		Insensitive:         false,
 		InsensitiveSections: false,

pkg/config/load.go

@@ -18,10 +18,10 @@ import (
 	"bytes"
 	"encoding/json"
 	"fmt"
-	"html/template"
 	"os"
 	"path/filepath"
 	"strings"
+	"text/template"
 
 	toml "github.com/pelletier/go-toml/v2"
 	"github.com/samber/lo"
@@ -80,7 +80,10 @@ func DetectLegacyINIFormatFromFile(path string) bool {
 }
 
 func RenderWithTemplate(in []byte, values *Values) ([]byte, error) {
-	tmpl, err := template.New("frp").Parse(string(in))
+	tmpl, err := template.New("frp").Funcs(template.FuncMap{
+		"parseNumberRange":     parseNumberRange,
+		"parseNumberRangePair": parseNumberRangePair,
+	}).Parse(string(in))
 	if err != nil {
 		return nil, err
 	}
@@ -100,26 +103,42 @@ func LoadFileContentWithTemplate(path string, values *Values) ([]byte, error) {
 	return RenderWithTemplate(b, values)
 }
 
-func LoadConfigureFromFile(path string, c any) error {
+func LoadConfigureFromFile(path string, c any, strict bool) error {
 	content, err := LoadFileContentWithTemplate(path, GetValues())
 	if err != nil {
 		return err
 	}
-	return LoadConfigure(content, c)
+	return LoadConfigure(content, c, strict)
 }
 
 // LoadConfigure loads configuration from bytes and unmarshal into c.
 // Now it supports json, yaml and toml format.
-func LoadConfigure(b []byte, c any) error {
-	var tomlObj interface{}
+func LoadConfigure(b []byte, c any, strict bool) error {
+	v1.DisallowUnknownFieldsMu.Lock()
+	defer v1.DisallowUnknownFieldsMu.Unlock()
+	v1.DisallowUnknownFields = strict
+
+	var tomlObj any
+	// Try to unmarshal as TOML first; swallow errors from that (assume it's not valid TOML).
 	if err := toml.Unmarshal(b, &tomlObj); err == nil {
 		b, err = json.Marshal(&tomlObj)
 		if err != nil {
 			return err
 		}
 	}
-	decoder := yaml.NewYAMLOrJSONDecoder(bytes.NewBuffer(b), 4096)
-	return decoder.Decode(c)
+	// If the buffer smells like JSON (first non-whitespace character is '{'), unmarshal as JSON directly.
+	if yaml.IsJSONBuffer(b) {
+		decoder := json.NewDecoder(bytes.NewBuffer(b))
+		if strict {
+			decoder.DisallowUnknownFields()
+		}
+		return decoder.Decode(c)
+	}
+	// It wasn't JSON. Unmarshal as YAML.
+	if strict {
+		return yaml.UnmarshalStrict(b, c)
+	}
+	return yaml.Unmarshal(b, c)
 }
 
 func NewProxyConfigurerFromMsg(m *msg.NewProxy, serverCfg *v1.ServerConfig) (v1.ProxyConfigurer, error) {
@@ -139,7 +158,7 @@ func NewProxyConfigurerFromMsg(m *msg.NewProxy, serverCfg *v1.ServerConfig) (v1.
 	return configurer, nil
 }
 
-func LoadServerConfig(path string) (*v1.ServerConfig, bool, error) {
+func LoadServerConfig(path string, strict bool) (*v1.ServerConfig, bool, error) {
 	var (
 		svrCfg         *v1.ServerConfig
 		isLegacyFormat bool
@@ -158,7 +177,7 @@ func LoadServerConfig(path string) (*v1.ServerConfig, bool, error) {
 		isLegacyFormat = true
 	} else {
 		svrCfg = &v1.ServerConfig{}
-		if err := LoadConfigureFromFile(path, svrCfg); err != nil {
+		if err := LoadConfigureFromFile(path, svrCfg, strict); err != nil {
 			return nil, false, err
 		}
 	}
@@ -168,7 +187,7 @@ func LoadServerConfig(path string) (*v1.ServerConfig, bool, error) {
 	return svrCfg, isLegacyFormat, nil
 }
 
-func LoadClientConfig(path string) (
+func LoadClientConfig(path string, strict bool) (
 	*v1.ClientCommonConfig,
 	[]v1.ProxyConfigurer,
 	[]v1.VisitorConfigurer,
@@ -176,19 +195,19 @@ func LoadClientConfig(path string) (
 ) {
 	var (
 		cliCfg         *v1.ClientCommonConfig
-		pxyCfgs        = make([]v1.ProxyConfigurer, 0)
+		proxyCfgs      = make([]v1.ProxyConfigurer, 0)
 		visitorCfgs    = make([]v1.VisitorConfigurer, 0)
 		isLegacyFormat bool
 	)
 
 	if DetectLegacyINIFormatFromFile(path) {
-		legacyCommon, legacyPxyCfgs, legacyVisitorCfgs, err := legacy.ParseClientConfig(path)
+		legacyCommon, legacyProxyCfgs, legacyVisitorCfgs, err := legacy.ParseClientConfig(path)
 		if err != nil {
 			return nil, nil, nil, true, err
 		}
 		cliCfg = legacy.Convert_ClientCommonConf_To_v1(&legacyCommon)
-		for _, c := range legacyPxyCfgs {
-			pxyCfgs = append(pxyCfgs, legacy.Convert_ProxyConf_To_v1(c))
+		for _, c := range legacyProxyCfgs {
+			proxyCfgs = append(proxyCfgs, legacy.Convert_ProxyConf_To_v1(c))
 		}
 		for _, c := range legacyVisitorCfgs {
 			visitorCfgs = append(visitorCfgs, legacy.Convert_VisitorConf_To_v1(c))
@@ -196,12 +215,12 @@ func LoadClientConfig(path string) (
 		isLegacyFormat = true
 	} else {
 		allCfg := v1.ClientConfig{}
-		if err := LoadConfigureFromFile(path, &allCfg); err != nil {
+		if err := LoadConfigureFromFile(path, &allCfg, strict); err != nil {
 			return nil, nil, nil, false, err
 		}
 		cliCfg = &allCfg.ClientCommonConfig
 		for _, c := range allCfg.Proxies {
-			pxyCfgs = append(pxyCfgs, c.ProxyConfigurer)
+			proxyCfgs = append(proxyCfgs, c.ProxyConfigurer)
 		}
 		for _, c := range allCfg.Visitors {
 			visitorCfgs = append(visitorCfgs, c.VisitorConfigurer)
@@ -209,20 +228,20 @@ func LoadClientConfig(path string) (
 	}
 
 	// Load additional config from includes.
-	// legacy ini format alredy handle this in ParseClientConfig.
+	// legacy ini format already handle this in ParseClientConfig.
 	if len(cliCfg.IncludeConfigFiles) > 0 && !isLegacyFormat {
-		extPxyCfgs, extVisitorCfgs, err := LoadAdditionalClientConfigs(cliCfg.IncludeConfigFiles, isLegacyFormat)
+		extProxyCfgs, extVisitorCfgs, err := LoadAdditionalClientConfigs(cliCfg.IncludeConfigFiles, isLegacyFormat, strict)
 		if err != nil {
 			return nil, nil, nil, isLegacyFormat, err
 		}
-		pxyCfgs = append(pxyCfgs, extPxyCfgs...)
+		proxyCfgs = append(proxyCfgs, extProxyCfgs...)
 		visitorCfgs = append(visitorCfgs, extVisitorCfgs...)
 	}
 
 	// Filter by start
 	if len(cliCfg.Start) > 0 {
 		startSet := sets.New(cliCfg.Start...)
-		pxyCfgs = lo.Filter(pxyCfgs, func(c v1.ProxyConfigurer, _ int) bool {
+		proxyCfgs = lo.Filter(proxyCfgs, func(c v1.ProxyConfigurer, _ int) bool {
 			return startSet.Has(c.GetBaseConfig().Name)
 		})
 		visitorCfgs = lo.Filter(visitorCfgs, func(c v1.VisitorConfigurer, _ int) bool {
@@ -233,17 +252,17 @@ func LoadClientConfig(path string) (
 	if cliCfg != nil {
 		cliCfg.Complete()
 	}
-	for _, c := range pxyCfgs {
+	for _, c := range proxyCfgs {
 		c.Complete(cliCfg.User)
 	}
 	for _, c := range visitorCfgs {
 		c.Complete(cliCfg)
 	}
-	return cliCfg, pxyCfgs, visitorCfgs, isLegacyFormat, nil
+	return cliCfg, proxyCfgs, visitorCfgs, isLegacyFormat, nil
 }
 
-func LoadAdditionalClientConfigs(paths []string, isLegacyFormat bool) ([]v1.ProxyConfigurer, []v1.VisitorConfigurer, error) {
-	pxyCfgs := make([]v1.ProxyConfigurer, 0)
+func LoadAdditionalClientConfigs(paths []string, isLegacyFormat bool, strict bool) ([]v1.ProxyConfigurer, []v1.VisitorConfigurer, error) {
+	proxyCfgs := make([]v1.ProxyConfigurer, 0)
 	visitorCfgs := make([]v1.VisitorConfigurer, 0)
 	for _, path := range paths {
 		absDir, err := filepath.Abs(filepath.Dir(path))
@@ -265,11 +284,11 @@ func LoadAdditionalClientConfigs(paths []string, isLegacyFormat bool) ([]v1.Prox
 			if matched, _ := filepath.Match(filepath.Join(absDir, filepath.Base(path)), absFile); matched {
 				// support yaml/json/toml
 				cfg := v1.ClientConfig{}
-				if err := LoadConfigureFromFile(absFile, &cfg); err != nil {
+				if err := LoadConfigureFromFile(absFile, &cfg, strict); err != nil {
 					return nil, nil, fmt.Errorf("load additional config from %s error: %v", absFile, err)
 				}
 				for _, c := range cfg.Proxies {
-					pxyCfgs = append(pxyCfgs, c.ProxyConfigurer)
+					proxyCfgs = append(proxyCfgs, c.ProxyConfigurer)
 				}
 				for _, c := range cfg.Visitors {
 					visitorCfgs = append(visitorCfgs, c.VisitorConfigurer)
@@ -277,5 +296,5 @@ func LoadAdditionalClientConfigs(paths []string, isLegacyFormat bool) ([]v1.Prox
 			}
 		}
 	}
-	return pxyCfgs, visitorCfgs, nil
+	return proxyCfgs, visitorCfgs, nil
 }

pkg/config/load_test.go

@@ -15,6 +15,8 @@
 package config
 
 import (
+	"fmt"
+	"strings"
 	"testing"
 
 	"github.com/stretchr/testify/require"
@@ -22,9 +24,7 @@ import (
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 )
 
-func TestLoadConfigure(t *testing.T) {
-	require := require.New(t)
-	content := `
+const tomlServerContent = `
 bindAddr = "127.0.0.1"
 kcpBindPort = 7000
 quicBindPort = 7001
@@ -33,13 +33,157 @@ custom404Page = "/abc.html"
 transport.tcpKeepalive = 10
 `
 
-	svrCfg := v1.ServerConfig{}
-	err := LoadConfigure([]byte(content), &svrCfg)
-	require.NoError(err)
-	require.EqualValues("127.0.0.1", svrCfg.BindAddr)
-	require.EqualValues(7000, svrCfg.KCPBindPort)
-	require.EqualValues(7001, svrCfg.QUICBindPort)
-	require.EqualValues(7005, svrCfg.TCPMuxHTTPConnectPort)
-	require.EqualValues("/abc.html", svrCfg.Custom404Page)
-	require.EqualValues(10, svrCfg.Transport.TCPKeepAlive)
+const yamlServerContent = `
+bindAddr: 127.0.0.1
+kcpBindPort: 7000
+quicBindPort: 7001
+tcpmuxHTTPConnectPort: 7005
+custom404Page: /abc.html
+transport:
+  tcpKeepalive: 10
+`
+
+const jsonServerContent = `
+{
+  "bindAddr": "127.0.0.1",
+  "kcpBindPort": 7000,
+  "quicBindPort": 7001,
+  "tcpmuxHTTPConnectPort": 7005,
+  "custom404Page": "/abc.html",
+  "transport": {
+    "tcpKeepalive": 10
+  }
+}
+`
+
+func TestLoadServerConfig(t *testing.T) {
+	tests := []struct {
+		name    string
+		content string
+	}{
+		{"toml", tomlServerContent},
+		{"yaml", yamlServerContent},
+		{"json", jsonServerContent},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			require := require.New(t)
+			svrCfg := v1.ServerConfig{}
+			err := LoadConfigure([]byte(test.content), &svrCfg, true)
+			require.NoError(err)
+			require.EqualValues("127.0.0.1", svrCfg.BindAddr)
+			require.EqualValues(7000, svrCfg.KCPBindPort)
+			require.EqualValues(7001, svrCfg.QUICBindPort)
+			require.EqualValues(7005, svrCfg.TCPMuxHTTPConnectPort)
+			require.EqualValues("/abc.html", svrCfg.Custom404Page)
+			require.EqualValues(10, svrCfg.Transport.TCPKeepAlive)
+		})
+	}
+}
+
+// Test that loading in strict mode fails when the config is invalid.
+func TestLoadServerConfigStrictMode(t *testing.T) {
+	tests := []struct {
+		name    string
+		content string
+	}{
+		{"toml", tomlServerContent},
+		{"yaml", yamlServerContent},
+		{"json", jsonServerContent},
+	}
+
+	for _, strict := range []bool{false, true} {
+		for _, test := range tests {
+			t.Run(fmt.Sprintf("%s-strict-%t", test.name, strict), func(t *testing.T) {
+				require := require.New(t)
+				// Break the content with an innocent typo
+				brokenContent := strings.Replace(test.content, "bindAddr", "bindAdur", 1)
+				svrCfg := v1.ServerConfig{}
+				err := LoadConfigure([]byte(brokenContent), &svrCfg, strict)
+				if strict {
+					require.ErrorContains(err, "bindAdur")
+				} else {
+					require.NoError(err)
+					// BindAddr didn't get parsed because of the typo.
+					require.EqualValues("", svrCfg.BindAddr)
+				}
+			})
+		}
+	}
+}
+
+func TestRenderWithTemplate(t *testing.T) {
+	tests := []struct {
+		name    string
+		content string
+		want    string
+	}{
+		{"toml", tomlServerContent, tomlServerContent},
+		{"yaml", yamlServerContent, yamlServerContent},
+		{"json", jsonServerContent, jsonServerContent},
+		{"template numeric", `key = {{ 123 }}`, "key = 123"},
+		{"template string", `key = {{ "xyz" }}`, "key = xyz"},
+		{"template quote", `key = {{ printf "%q" "with space" }}`, `key = "with space"`},
+	}
+	for _, test := range tests {
+		t.Run(test.name, func(t *testing.T) {
+			require := require.New(t)
+			got, err := RenderWithTemplate([]byte(test.content), nil)
+			require.NoError(err)
+			require.EqualValues(test.want, string(got))
+		})
+	}
+}
+
+func TestCustomStructStrictMode(t *testing.T) {
+	require := require.New(t)
+
+	proxyStr := `
+serverPort = 7000
+
+[[proxies]]
+name = "test"
+type = "tcp"
+remotePort = 6000
+`
+	clientCfg := v1.ClientConfig{}
+	err := LoadConfigure([]byte(proxyStr), &clientCfg, true)
+	require.NoError(err)
+
+	proxyStr += `unknown = "unknown"`
+	err = LoadConfigure([]byte(proxyStr), &clientCfg, true)
+	require.Error(err)
+
+	visitorStr := `
+serverPort = 7000
+
+[[visitors]]
+name = "test"
+type = "stcp"
+bindPort = 6000
+serverName = "server"
+`
+	err = LoadConfigure([]byte(visitorStr), &clientCfg, true)
+	require.NoError(err)
+
+	visitorStr += `unknown = "unknown"`
+	err = LoadConfigure([]byte(visitorStr), &clientCfg, true)
+	require.Error(err)
+
+	pluginStr := `
+serverPort = 7000
+
+[[proxies]]
+name = "test"
+type = "tcp"
+remotePort = 6000
+[proxies.plugin]
+type = "unix_domain_socket"
+unixPath = "/tmp/uds.sock"
+`
+	err = LoadConfigure([]byte(pluginStr), &clientCfg, true)
+	require.NoError(err)
+	pluginStr += `unknown = "unknown"`
+	err = LoadConfigure([]byte(pluginStr), &clientCfg, true)
+	require.Error(err)
 }

pkg/config/template.go

@@ -0,0 +1,52 @@
+// Copyright 2024 The frp Authors
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//     http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+
+package config
+
+import (
+	"fmt"
+
+	"github.com/fatedier/frp/pkg/util/util"
+)
+
+type NumberPair struct {
+	First  int64
+	Second int64
+}
+
+func parseNumberRangePair(firstRangeStr, secondRangeStr string) ([]NumberPair, error) {
+	firstRangeNumbers, err := util.ParseRangeNumbers(firstRangeStr)
+	if err != nil {
+		return nil, err
+	}
+	secondRangeNumbers, err := util.ParseRangeNumbers(secondRangeStr)
+	if err != nil {
+		return nil, err
+	}
+	if len(firstRangeNumbers) != len(secondRangeNumbers) {
+		return nil, fmt.Errorf("first and second range numbers are not in pairs")
+	}
+	pairs := make([]NumberPair, 0, len(firstRangeNumbers))
+	for i := 0; i < len(firstRangeNumbers); i++ {
+		pairs = append(pairs, NumberPair{
+			First:  firstRangeNumbers[i],
+			Second: secondRangeNumbers[i],
+		})
+	}
+	return pairs, nil
+}
+
+func parseNumberRange(firstRangeStr string) ([]int64, error) {
+	return util.ParseRangeNumbers(firstRangeStr)
+}

pkg/config/types/types.go

@@ -45,15 +45,6 @@ func NewBandwidthQuantity(s string) (BandwidthQuantity, error) {
 	return q, nil
 }
 
-func MustBandwidthQuantity(s string) BandwidthQuantity {
-	q := BandwidthQuantity{}
-	err := q.UnmarshalString(s)
-	if err != nil {
-		panic(err)
-	}
-	return q
-}
-
 func (q *BandwidthQuantity) Equal(u *BandwidthQuantity) bool {
 	if q == nil && u == nil {
 		return true
@@ -168,18 +159,18 @@ func NewPortsRangeSliceFromString(str string) ([]PortsRange, error) {
 			out = append(out, PortsRange{Single: int(singleNum)})
 		case 2:
 			// range numbers
-			min, err := strconv.ParseInt(strings.TrimSpace(numArray[0]), 10, 64)
+			minNum, err := strconv.ParseInt(strings.TrimSpace(numArray[0]), 10, 64)
 			if err != nil {
 				return nil, fmt.Errorf("range number is invalid, %v", err)
 			}
-			max, err := strconv.ParseInt(strings.TrimSpace(numArray[1]), 10, 64)
+			maxNum, err := strconv.ParseInt(strings.TrimSpace(numArray[1]), 10, 64)
 			if err != nil {
 				return nil, fmt.Errorf("range number is invalid, %v", err)
 			}
-			if max < min {
+			if maxNum < minNum {
 				return nil, fmt.Errorf("range number is invalid")
 			}
-			out = append(out, PortsRange{Start: int(min), End: int(max)})
+			out = append(out, PortsRange{Start: int(minNum), End: int(maxNum)})
 		default:
 			return nil, fmt.Errorf("range number is invalid")
 		}

pkg/config/v1/client.go

@@ -58,9 +58,14 @@ type ClientCommonConfig struct {
 	// set.
 	Start []string `json:"start,omitempty"`
 
-	Log       LogConfig             `json:"log,omitempty"`
-	WebServer WebServerConfig       `json:"webServer,omitempty"`
-	Transport ClientTransportConfig `json:"transport,omitempty"`
+	Log        LogConfig             `json:"log,omitempty"`
+	WebServer  WebServerConfig       `json:"webServer,omitempty"`
+	Transport  ClientTransportConfig `json:"transport,omitempty"`
+	VirtualNet VirtualNetConfig      `json:"virtualNet,omitempty"`
+
+	// FeatureGates specifies a set of feature gates to enable or disable.
+	// This can be used to enable alpha/beta features or disable default features.
+	FeatureGates map[string]bool `json:"featureGates,omitempty"`
 
 	// UDPPacketSize specifies the udp packet size
 	// By default, this value is 1500
@@ -111,7 +116,7 @@ type ClientTransportConfig struct {
 	// the server must have TCP multiplexing enabled as well. By default, this
 	// value is true.
 	TCPMux *bool `json:"tcpMux,omitempty"`
-	// TCPMuxKeepaliveInterval specifies the keep alive interval for TCP stream multipler.
+	// TCPMuxKeepaliveInterval specifies the keep alive interval for TCP stream multiplier.
 	// If TCPMux is true, heartbeat of application layer is unnecessary because it can only rely on heartbeat in TCPMux.
 	TCPMuxKeepaliveInterval int64 `json:"tcpMuxKeepaliveInterval,omitempty"`
 	// QUIC protocol options.
@@ -135,9 +140,15 @@ func (c *ClientTransportConfig) Complete() {
 	c.ProxyURL = util.EmptyOr(c.ProxyURL, os.Getenv("http_proxy"))
 	c.PoolCount = util.EmptyOr(c.PoolCount, 1)
 	c.TCPMux = util.EmptyOr(c.TCPMux, lo.ToPtr(true))
-	c.TCPMuxKeepaliveInterval = util.EmptyOr(c.TCPMuxKeepaliveInterval, 60)
-	c.HeartbeatInterval = util.EmptyOr(c.HeartbeatInterval, 30)
-	c.HeartbeatTimeout = util.EmptyOr(c.HeartbeatTimeout, 90)
+	c.TCPMuxKeepaliveInterval = util.EmptyOr(c.TCPMuxKeepaliveInterval, 30)
+	if lo.FromPtr(c.TCPMux) {
+		// If TCPMux is enabled, heartbeat of application layer is unnecessary because we can rely on heartbeat in tcpmux.
+		c.HeartbeatInterval = util.EmptyOr(c.HeartbeatInterval, -1)
+		c.HeartbeatTimeout = util.EmptyOr(c.HeartbeatTimeout, -1)
+	} else {
+		c.HeartbeatInterval = util.EmptyOr(c.HeartbeatInterval, 30)
+		c.HeartbeatTimeout = util.EmptyOr(c.HeartbeatTimeout, 90)
+	}
 	c.QUIC.Complete()
 	c.TLS.Complete()
 }
@@ -198,3 +209,7 @@ type AuthOIDCClientConfig struct {
 	// this field will be transfer to map[string][]string in OIDC token generator.
 	AdditionalEndpointParams map[string]string `json:"additionalEndpointParams,omitempty"`
 }
+
+type VirtualNetConfig struct {
+	Address string `json:"address,omitempty"`
+}

pkg/config/v1/common.go

@@ -15,9 +15,23 @@
 package v1
 
 import (
+	"sync"
+
 	"github.com/fatedier/frp/pkg/util/util"
 )
 
+// TODO(fatedier): Due to the current implementation issue of the go json library, the UnmarshalJSON method
+// of a custom struct cannot access the DisallowUnknownFields parameter of the parent decoder.
+// Here, a global variable is temporarily used to control whether unknown fields are allowed.
+// Once the v2 version is implemented by the community, we can switch to a standardized approach.
+//
+// https://github.com/golang/go/issues/41144
+// https://github.com/golang/go/discussions/63397
+var (
+	DisallowUnknownFields   = false
+	DisallowUnknownFieldsMu sync.Mutex
+)
+
 type AuthScope string
 
 const (
@@ -83,7 +97,7 @@ type TLSConfig struct {
 }
 
 type LogConfig struct {
-	// This is destination where frp should wirte the logs.
+	// This is destination where frp should write the logs.
 	// If "console" is used, logs will be printed to stdout, otherwise,
 	// logs will be written to the specified file.
 	// By default, this value is "console".
@@ -115,3 +129,8 @@ type HTTPPluginOptions struct {
 type HeaderOperations struct {
 	Set map[string]string `json:"set,omitempty"`
 }
+
+type HTTPHeader struct {
+	Name  string `json:"name"`
+	Value string `json:"value"`
+}

pkg/config/v1/proxy.go

@@ -15,6 +15,7 @@
 package v1
 
 import (
+	"bytes"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -96,6 +97,9 @@ type HealthCheckConfig struct {
 	// Path specifies the path to send health checks to if the
 	// health check type is "http".
 	Path string `json:"path,omitempty"`
+	// HTTPHeaders specifies the headers to send with the health request, if
+	// the health check type is "http".
+	HTTPHeaders []HTTPHeader `json:"httpHeaders,omitempty"`
 }
 
 type DomainConfig struct {
@@ -104,9 +108,10 @@ type DomainConfig struct {
 }
 
 type ProxyBaseConfig struct {
-	Name      string         `json:"name"`
-	Type      string         `json:"type"`
-	Transport ProxyTransport `json:"transport,omitempty"`
+	Name        string            `json:"name"`
+	Type        string            `json:"type"`
+	Annotations map[string]string `json:"annotations,omitempty"`
+	Transport   ProxyTransport    `json:"transport,omitempty"`
 	// metadata info for each proxy
 	Metadatas    map[string]string  `json:"metadatas,omitempty"`
 	LoadBalancer LoadBalancerConfig `json:"loadBalancer,omitempty"`
@@ -122,6 +127,10 @@ func (c *ProxyBaseConfig) Complete(namePrefix string) {
 	c.Name = lo.Ternary(namePrefix == "", "", namePrefix+".") + c.Name
 	c.LocalIP = util.EmptyOr(c.LocalIP, "127.0.0.1")
 	c.Transport.BandwidthLimitMode = util.EmptyOr(c.Transport.BandwidthLimitMode, types.BandwidthLimitModeClient)
+
+	if c.Plugin.ClientPluginOptions != nil {
+		c.Plugin.ClientPluginOptions.Complete()
+	}
 }
 
 func (c *ProxyBaseConfig) MarshalToMsg(m *msg.NewProxy) {
@@ -137,6 +146,7 @@ func (c *ProxyBaseConfig) MarshalToMsg(m *msg.NewProxy) {
 	m.Group = c.LoadBalancer.Group
 	m.GroupKey = c.LoadBalancer.GroupKey
 	m.Metas = c.Metadatas
+	m.Annotations = c.Annotations
 }
 
 func (c *ProxyBaseConfig) UnmarshalFromMsg(m *msg.NewProxy) {
@@ -153,6 +163,7 @@ func (c *ProxyBaseConfig) UnmarshalFromMsg(m *msg.NewProxy) {
 	c.LoadBalancer.Group = m.Group
 	c.LoadBalancer.GroupKey = m.GroupKey
 	c.Metadatas = m.Metas
+	c.Annotations = m.Annotations
 }
 
 type TypedProxyConfig struct {
@@ -177,20 +188,28 @@ func (c *TypedProxyConfig) UnmarshalJSON(b []byte) error {
 	if configurer == nil {
 		return fmt.Errorf("unknown proxy type: %s", typeStruct.Type)
 	}
-	if err := json.Unmarshal(b, configurer); err != nil {
-		return err
+	decoder := json.NewDecoder(bytes.NewBuffer(b))
+	if DisallowUnknownFields {
+		decoder.DisallowUnknownFields()
+	}
+	if err := decoder.Decode(configurer); err != nil {
+		return fmt.Errorf("unmarshal ProxyConfig error: %v", err)
 	}
 	c.ProxyConfigurer = configurer
 	return nil
 }
 
+func (c *TypedProxyConfig) MarshalJSON() ([]byte, error) {
+	return json.Marshal(c.ProxyConfigurer)
+}
+
 type ProxyConfigurer interface {
 	Complete(namePrefix string)
 	GetBaseConfig() *ProxyBaseConfig
 	// MarshalToMsg marshals this config into a msg.NewProxy message. This
 	// function will be called on the frpc side.
 	MarshalToMsg(*msg.NewProxy)
-	// UnmarshalFromMsg unmarshals a msg.NewProxy message into this config.
+	// UnmarshalFromMsg unmarshal a msg.NewProxy message into this config.
 	// This function will be called on the frps side.
 	UnmarshalFromMsg(*msg.NewProxy)
 }
@@ -224,7 +243,9 @@ func NewProxyConfigurerByType(proxyType ProxyType) ProxyConfigurer {
 	if !ok {
 		return nil
 	}
-	return reflect.New(v).Interface().(ProxyConfigurer)
+	pc := reflect.New(v).Interface().(ProxyConfigurer)
+	pc.GetBaseConfig().Type = string(proxyType)
+	return pc
 }
 
 var _ ProxyConfigurer = &TCPProxyConfig{}
@@ -278,6 +299,7 @@ type HTTPProxyConfig struct {
 	HTTPPassword      string           `json:"httpPassword,omitempty"`
 	HostHeaderRewrite string           `json:"hostHeaderRewrite,omitempty"`
 	RequestHeaders    HeaderOperations `json:"requestHeaders,omitempty"`
+	ResponseHeaders   HeaderOperations `json:"responseHeaders,omitempty"`
 	RouteByHTTPUser   string           `json:"routeByHTTPUser,omitempty"`
 }
 
@@ -291,6 +313,7 @@ func (c *HTTPProxyConfig) MarshalToMsg(m *msg.NewProxy) {
 	m.HTTPUser = c.HTTPUser
 	m.HTTPPwd = c.HTTPPassword
 	m.Headers = c.RequestHeaders.Set
+	m.ResponseHeaders = c.ResponseHeaders.Set
 	m.RouteByHTTPUser = c.RouteByHTTPUser
 }
 
@@ -304,6 +327,7 @@ func (c *HTTPProxyConfig) UnmarshalFromMsg(m *msg.NewProxy) {
 	c.HTTPUser = m.HTTPUser
 	c.HTTPPassword = m.HTTPPwd
 	c.RequestHeaders.Set = m.Headers
+	c.ResponseHeaders.Set = m.ResponseHeaders
 	c.RouteByHTTPUser = m.RouteByHTTPUser
 }
 

pkg/config/v1/proxy_plugin.go

@@ -15,12 +15,46 @@
 package v1
 
 import (
+	"bytes"
 	"encoding/json"
+	"errors"
 	"fmt"
 	"reflect"
+
+	"github.com/samber/lo"
+
+	"github.com/fatedier/frp/pkg/util/util"
 )
 
-type ClientPluginOptions interface{}
+const (
+	PluginHTTP2HTTPS       = "http2https"
+	PluginHTTPProxy        = "http_proxy"
+	PluginHTTPS2HTTP       = "https2http"
+	PluginHTTPS2HTTPS      = "https2https"
+	PluginHTTP2HTTP        = "http2http"
+	PluginSocks5           = "socks5"
+	PluginStaticFile       = "static_file"
+	PluginUnixDomainSocket = "unix_domain_socket"
+	PluginTLS2Raw          = "tls2raw"
+	PluginVirtualNet       = "virtual_net"
+)
+
+var clientPluginOptionsTypeMap = map[string]reflect.Type{
+	PluginHTTP2HTTPS:       reflect.TypeOf(HTTP2HTTPSPluginOptions{}),
+	PluginHTTPProxy:        reflect.TypeOf(HTTPProxyPluginOptions{}),
+	PluginHTTPS2HTTP:       reflect.TypeOf(HTTPS2HTTPPluginOptions{}),
+	PluginHTTPS2HTTPS:      reflect.TypeOf(HTTPS2HTTPSPluginOptions{}),
+	PluginHTTP2HTTP:        reflect.TypeOf(HTTP2HTTPPluginOptions{}),
+	PluginSocks5:           reflect.TypeOf(Socks5PluginOptions{}),
+	PluginStaticFile:       reflect.TypeOf(StaticFilePluginOptions{}),
+	PluginUnixDomainSocket: reflect.TypeOf(UnixDomainSocketPluginOptions{}),
+	PluginTLS2Raw:          reflect.TypeOf(TLS2RawPluginOptions{}),
+	PluginVirtualNet:       reflect.TypeOf(VirtualNetPluginOptions{}),
+}
+
+type ClientPluginOptions interface {
+	Complete()
+}
 
 type TypedClientPluginOptions struct {
 	Type string `json:"type"`
@@ -41,7 +75,7 @@ func (c *TypedClientPluginOptions) UnmarshalJSON(b []byte) error {
 
 	c.Type = typeStruct.Type
 	if c.Type == "" {
-		return nil
+		return errors.New("plugin type is empty")
 	}
 
 	v, ok := clientPluginOptionsTypeMap[typeStruct.Type]
@@ -49,72 +83,113 @@ func (c *TypedClientPluginOptions) UnmarshalJSON(b []byte) error {
 		return fmt.Errorf("unknown plugin type: %s", typeStruct.Type)
 	}
 	options := reflect.New(v).Interface().(ClientPluginOptions)
-	if err := json.Unmarshal(b, options); err != nil {
-		return err
+
+	decoder := json.NewDecoder(bytes.NewBuffer(b))
+	if DisallowUnknownFields {
+		decoder.DisallowUnknownFields()
+	}
+
+	if err := decoder.Decode(options); err != nil {
+		return fmt.Errorf("unmarshal ClientPluginOptions error: %v", err)
 	}
 	c.ClientPluginOptions = options
 	return nil
 }
 
-const (
-	PluginHTTP2HTTPS       = "http2https"
-	PluginHTTPProxy        = "http_proxy"
-	PluginHTTPS2HTTP       = "https2http"
-	PluginHTTPS2HTTPS      = "https2https"
-	PluginSocks5           = "socks5"
-	PluginStaticFile       = "static_file"
-	PluginUnixDomainSocket = "unix_domain_socket"
-)
-
-var clientPluginOptionsTypeMap = map[string]reflect.Type{
-	PluginHTTP2HTTPS:       reflect.TypeOf(HTTP2HTTPSPluginOptions{}),
-	PluginHTTPProxy:        reflect.TypeOf(HTTPProxyPluginOptions{}),
-	PluginHTTPS2HTTP:       reflect.TypeOf(HTTPS2HTTPPluginOptions{}),
-	PluginHTTPS2HTTPS:      reflect.TypeOf(HTTPS2HTTPSPluginOptions{}),
-	PluginSocks5:           reflect.TypeOf(Socks5PluginOptions{}),
-	PluginStaticFile:       reflect.TypeOf(StaticFilePluginOptions{}),
-	PluginUnixDomainSocket: reflect.TypeOf(UnixDomainSocketPluginOptions{}),
+func (c *TypedClientPluginOptions) MarshalJSON() ([]byte, error) {
+	return json.Marshal(c.ClientPluginOptions)
 }
 
 type HTTP2HTTPSPluginOptions struct {
+	Type              string           `json:"type,omitempty"`
 	LocalAddr         string           `json:"localAddr,omitempty"`
 	HostHeaderRewrite string           `json:"hostHeaderRewrite,omitempty"`
 	RequestHeaders    HeaderOperations `json:"requestHeaders,omitempty"`
 }
 
+func (o *HTTP2HTTPSPluginOptions) Complete() {}
+
 type HTTPProxyPluginOptions struct {
+	Type         string `json:"type,omitempty"`
 	HTTPUser     string `json:"httpUser,omitempty"`
 	HTTPPassword string `json:"httpPassword,omitempty"`
 }
 
+func (o *HTTPProxyPluginOptions) Complete() {}
+
 type HTTPS2HTTPPluginOptions struct {
+	Type              string           `json:"type,omitempty"`
 	LocalAddr         string           `json:"localAddr,omitempty"`
 	HostHeaderRewrite string           `json:"hostHeaderRewrite,omitempty"`
 	RequestHeaders    HeaderOperations `json:"requestHeaders,omitempty"`
+	EnableHTTP2       *bool            `json:"enableHTTP2,omitempty"`
 	CrtPath           string           `json:"crtPath,omitempty"`
 	KeyPath           string           `json:"keyPath,omitempty"`
 }
 
+func (o *HTTPS2HTTPPluginOptions) Complete() {
+	o.EnableHTTP2 = util.EmptyOr(o.EnableHTTP2, lo.ToPtr(true))
+}
+
 type HTTPS2HTTPSPluginOptions struct {
+	Type              string           `json:"type,omitempty"`
 	LocalAddr         string           `json:"localAddr,omitempty"`
 	HostHeaderRewrite string           `json:"hostHeaderRewrite,omitempty"`
 	RequestHeaders    HeaderOperations `json:"requestHeaders,omitempty"`
+	EnableHTTP2       *bool            `json:"enableHTTP2,omitempty"`
 	CrtPath           string           `json:"crtPath,omitempty"`
 	KeyPath           string           `json:"keyPath,omitempty"`
 }
 
+func (o *HTTPS2HTTPSPluginOptions) Complete() {
+	o.EnableHTTP2 = util.EmptyOr(o.EnableHTTP2, lo.ToPtr(true))
+}
+
+type HTTP2HTTPPluginOptions struct {
+	Type              string           `json:"type,omitempty"`
+	LocalAddr         string           `json:"localAddr,omitempty"`
+	HostHeaderRewrite string           `json:"hostHeaderRewrite,omitempty"`
+	RequestHeaders    HeaderOperations `json:"requestHeaders,omitempty"`
+}
+
+func (o *HTTP2HTTPPluginOptions) Complete() {}
+
 type Socks5PluginOptions struct {
+	Type     string `json:"type,omitempty"`
 	Username string `json:"username,omitempty"`
 	Password string `json:"password,omitempty"`
 }
 
+func (o *Socks5PluginOptions) Complete() {}
+
 type StaticFilePluginOptions struct {
+	Type         string `json:"type,omitempty"`
 	LocalPath    string `json:"localPath,omitempty"`
 	StripPrefix  string `json:"stripPrefix,omitempty"`
 	HTTPUser     string `json:"httpUser,omitempty"`
 	HTTPPassword string `json:"httpPassword,omitempty"`
 }
 
+func (o *StaticFilePluginOptions) Complete() {}
+
 type UnixDomainSocketPluginOptions struct {
+	Type     string `json:"type,omitempty"`
 	UnixPath string `json:"unixPath,omitempty"`
 }
+
+func (o *UnixDomainSocketPluginOptions) Complete() {}
+
+type TLS2RawPluginOptions struct {
+	Type      string `json:"type,omitempty"`
+	LocalAddr string `json:"localAddr,omitempty"`
+	CrtPath   string `json:"crtPath,omitempty"`
+	KeyPath   string `json:"keyPath,omitempty"`
+}
+
+func (o *TLS2RawPluginOptions) Complete() {}
+
+type VirtualNetPluginOptions struct {
+	Type string `json:"type,omitempty"`
+}
+
+func (o *VirtualNetPluginOptions) Complete() {}

pkg/config/v1/server.go

@@ -67,6 +67,8 @@ type ServerConfig struct {
 	// value is "", a default page will be displayed.
 	Custom404Page string `json:"custom404Page,omitempty"`
 
+	SSHTunnelGateway SSHTunnelGateway `json:"sshTunnelGateway,omitempty"`
+
 	WebServer WebServerConfig `json:"webServer,omitempty"`
 	// EnablePrometheus will export prometheus metrics on webserver address
 	// in /metrics api.
@@ -101,6 +103,7 @@ func (c *ServerConfig) Complete() {
 	c.Log.Complete()
 	c.Transport.Complete()
 	c.WebServer.Complete()
+	c.SSHTunnelGateway.Complete()
 
 	c.BindAddr = util.EmptyOr(c.BindAddr, "0.0.0.0")
 	c.BindPort = util.EmptyOr(c.BindPort, 7000)
@@ -152,7 +155,7 @@ type ServerTransportConfig struct {
 	// is true.
 	// $HideFromDoc
 	TCPMux *bool `json:"tcpMux,omitempty"`
-	// TCPMuxKeepaliveInterval specifies the keep alive interval for TCP stream multipler.
+	// TCPMuxKeepaliveInterval specifies the keep alive interval for TCP stream multiplier.
 	// If TCPMux is true, heartbeat of application layer is unnecessary because it can only rely on heartbeat in TCPMux.
 	TCPMuxKeepaliveInterval int64 `json:"tcpMuxKeepaliveInterval,omitempty"`
 	// TCPKeepAlive specifies the interval between keep-alive probes for an active network connection between frpc and frps.
@@ -173,10 +176,15 @@ type ServerTransportConfig struct {
 
 func (c *ServerTransportConfig) Complete() {
 	c.TCPMux = util.EmptyOr(c.TCPMux, lo.ToPtr(true))
-	c.TCPMuxKeepaliveInterval = util.EmptyOr(c.TCPMuxKeepaliveInterval, 60)
+	c.TCPMuxKeepaliveInterval = util.EmptyOr(c.TCPMuxKeepaliveInterval, 30)
 	c.TCPKeepAlive = util.EmptyOr(c.TCPKeepAlive, 7200)
 	c.MaxPoolCount = util.EmptyOr(c.MaxPoolCount, 5)
-	c.HeartbeatTimeout = util.EmptyOr(c.HeartbeatTimeout, 90)
+	if lo.FromPtr(c.TCPMux) {
+		// If TCPMux is enabled, heartbeat of application layer is unnecessary because we can rely on heartbeat in tcpmux.
+		c.HeartbeatTimeout = util.EmptyOr(c.HeartbeatTimeout, -1)
+	} else {
+		c.HeartbeatTimeout = util.EmptyOr(c.HeartbeatTimeout, 90)
+	}
 	c.QUIC.Complete()
 	if c.TLS.TrustedCaFile != "" {
 		c.TLS.Force = true
@@ -189,3 +197,14 @@ type TLSServerConfig struct {
 
 	TLSConfig
 }
+
+type SSHTunnelGateway struct {
+	BindPort              int    `json:"bindPort,omitempty"`
+	PrivateKeyFile        string `json:"privateKeyFile,omitempty"`
+	AutoGenPrivateKeyPath string `json:"autoGenPrivateKeyPath,omitempty"`
+	AuthorizedKeysFile    string `json:"authorizedKeysFile,omitempty"`
+}
+
+func (c *SSHTunnelGateway) Complete() {
+	c.AutoGenPrivateKeyPath = util.EmptyOr(c.AutoGenPrivateKeyPath, "./.autogen_ssh_key")
+}

pkg/config/v1/validation/client.go

@@ -18,10 +18,12 @@ import (
 	"fmt"
 	"os"
 	"path/filepath"
+	"slices"
 
 	"github.com/samber/lo"
 
 	v1 "github.com/fatedier/frp/pkg/config/v1"
+	"github.com/fatedier/frp/pkg/featuregate"
 )
 
 func ValidateClientCommonConfig(c *v1.ClientCommonConfig) (Warning, error) {
@@ -29,7 +31,14 @@ func ValidateClientCommonConfig(c *v1.ClientCommonConfig) (Warning, error) {
 		warnings Warning
 		errs     error
 	)
-	if !lo.Contains(SupportedAuthMethods, c.Auth.Method) {
+	// validate feature gates
+	if c.VirtualNet.Address != "" {
+		if !featuregate.Enabled(featuregate.VirtualNet) {
+			return warnings, fmt.Errorf("VirtualNet feature is not enabled; enable it by setting the appropriate feature gate flag")
+		}
+	}
+
+	if !slices.Contains(SupportedAuthMethods, c.Auth.Method) {
 		errs = AppendError(errs, fmt.Errorf("invalid auth method, optional values are %v", SupportedAuthMethods))
 	}
 	if !lo.Every(SupportedAuthAdditionalScopes, c.Auth.AdditionalScopes) {
@@ -63,7 +72,7 @@ func ValidateClientCommonConfig(c *v1.ClientCommonConfig) (Warning, error) {
 		warnings = AppendError(warnings, checkTLSConfig("transport.tls.trustedCaFile", c.Transport.TLS.TrustedCaFile))
 	}
 
-	if !lo.Contains(SupportedTransportProtocols, c.Transport.Protocol) {
+	if !slices.Contains(SupportedTransportProtocols, c.Transport.Protocol) {
 		errs = AppendError(errs, fmt.Errorf("invalid transport.protocol, optional values are %v", SupportedTransportProtocols))
 	}
 
@@ -80,7 +89,7 @@ func ValidateClientCommonConfig(c *v1.ClientCommonConfig) (Warning, error) {
 	return warnings, errs
 }
 
-func ValidateAllClientConfig(c *v1.ClientCommonConfig, pxyCfgs []v1.ProxyConfigurer, visitorCfgs []v1.VisitorConfigurer) (Warning, error) {
+func ValidateAllClientConfig(c *v1.ClientCommonConfig, proxyCfgs []v1.ProxyConfigurer, visitorCfgs []v1.VisitorConfigurer) (Warning, error) {
 	var warnings Warning
 	if c != nil {
 		warning, err := ValidateClientCommonConfig(c)
@@ -90,7 +99,7 @@ func ValidateAllClientConfig(c *v1.ClientCommonConfig, pxyCfgs []v1.ProxyConfigu
 		}
 	}
 
-	for _, c := range pxyCfgs {
+	for _, c := range proxyCfgs {
 		if err := ValidateProxyConfigurerForClient(c); err != nil {
 			return warnings, fmt.Errorf("proxy %s: %v", c.GetBaseConfig().Name, err)
 		}

pkg/config/v1/validation/common.go

@@ -16,8 +16,7 @@ package validation
 
 import (
 	"fmt"
-
-	"github.com/samber/lo"
+	"slices"
 
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 )
@@ -44,7 +43,7 @@ func ValidatePort(port int, fieldPath string) error {
 }
 
 func validateLogConfig(c *v1.LogConfig) error {
-	if !lo.Contains(SupportedLogLevels, c.Level) {
+	if !slices.Contains(SupportedLogLevels, c.Level) {
 		return fmt.Errorf("invalid log level, optional values are %v", SupportedLogLevels)
 	}
 	return nil

pkg/config/v1/validation/plugin.go

@@ -32,6 +32,8 @@ func ValidateClientPluginOptions(c v1.ClientPluginOptions) error {
 		return validateStaticFilePluginOptions(v)
 	case *v1.UnixDomainSocketPluginOptions:
 		return validateUnixDomainSocketPluginOptions(v)
+	case *v1.TLS2RawPluginOptions:
+		return validateTLS2RawPluginOptions(v)
 	}
 	return nil
 }
@@ -70,3 +72,10 @@ func validateUnixDomainSocketPluginOptions(c *v1.UnixDomainSocketPluginOptions)
 	}
 	return nil
 }
+
+func validateTLS2RawPluginOptions(c *v1.TLS2RawPluginOptions) error {
+	if c.LocalAddr == "" {
+		return errors.New("localAddr is required")
+	}
+	return nil
+}

pkg/config/v1/validation/proxy.go

@@ -17,9 +17,10 @@ package validation
 import (
 	"errors"
 	"fmt"
+	"slices"
 	"strings"
 
-	"github.com/samber/lo"
+	"k8s.io/apimachinery/pkg/util/validation"
 
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 )
@@ -29,11 +30,13 @@ func validateProxyBaseConfigForClient(c *v1.ProxyBaseConfig) error {
 		return errors.New("name should not be empty")
 	}
 
-	if !lo.Contains([]string{"", "v1", "v2"}, c.Transport.ProxyProtocolVersion) {
+	if err := ValidateAnnotations(c.Annotations); err != nil {
+		return err
+	}
+	if !slices.Contains([]string{"", "v1", "v2"}, c.Transport.ProxyProtocolVersion) {
 		return fmt.Errorf("not support proxy protocol version: %s", c.Transport.ProxyProtocolVersion)
 	}
-
-	if !lo.Contains([]string{"client", "server"}, c.Transport.BandwidthLimitMode) {
+	if !slices.Contains([]string{"client", "server"}, c.Transport.BandwidthLimitMode) {
 		return fmt.Errorf("bandwidth limit mode should be client or server")
 	}
 
@@ -43,7 +46,7 @@ func validateProxyBaseConfigForClient(c *v1.ProxyBaseConfig) error {
 		}
 	}
 
-	if !lo.Contains([]string{"", "tcp", "http"}, c.HealthCheck.Type) {
+	if !slices.Contains([]string{"", "tcp", "http"}, c.HealthCheck.Type) {
 		return fmt.Errorf("not support health check type: %s", c.HealthCheck.Type)
 	}
 	if c.HealthCheck.Type != "" {
@@ -61,7 +64,10 @@ func validateProxyBaseConfigForClient(c *v1.ProxyBaseConfig) error {
 	return nil
 }
 
-func validateProxyBaseConfigForServer(c *v1.ProxyBaseConfig, s *v1.ServerConfig) error {
+func validateProxyBaseConfigForServer(c *v1.ProxyBaseConfig) error {
+	if err := ValidateAnnotations(c.Annotations); err != nil {
+		return err
+	}
 	return nil
 }
 
@@ -133,7 +139,7 @@ func validateTCPMuxProxyConfigForClient(c *v1.TCPMuxProxyConfig) error {
 		return err
 	}
 
-	if !lo.Contains([]string{string(v1.TCPMultiplexerHTTPConnect)}, c.Multiplexer) {
+	if !slices.Contains([]string{string(v1.TCPMultiplexerHTTPConnect)}, c.Multiplexer) {
 		return fmt.Errorf("not support multiplexer: %s", c.Multiplexer)
 	}
 	return nil
@@ -161,7 +167,7 @@ func validateSUDPProxyConfigForClient(c *v1.SUDPProxyConfig) error {
 
 func ValidateProxyConfigurerForServer(c v1.ProxyConfigurer, s *v1.ServerConfig) error {
 	base := c.GetBaseConfig()
-	if err := validateProxyBaseConfigForServer(base, s); err != nil {
+	if err := validateProxyBaseConfigForServer(base); err != nil {
 		return err
 	}
 
@@ -231,3 +237,34 @@ func validateXTCPProxyConfigForServer(c *v1.XTCPProxyConfig, s *v1.ServerConfig)
 func validateSUDPProxyConfigForServer(c *v1.SUDPProxyConfig, s *v1.ServerConfig) error {
 	return nil
 }
+
+// ValidateAnnotations validates that a set of annotations are correctly defined.
+func ValidateAnnotations(annotations map[string]string) error {
+	if len(annotations) == 0 {
+		return nil
+	}
+
+	var errs error
+	for k := range annotations {
+		for _, msg := range validation.IsQualifiedName(strings.ToLower(k)) {
+			errs = AppendError(errs, fmt.Errorf("annotation key %s is invalid: %s", k, msg))
+		}
+	}
+	if err := ValidateAnnotationsSize(annotations); err != nil {
+		errs = AppendError(errs, err)
+	}
+	return errs
+}
+
+const TotalAnnotationSizeLimitB int = 256 * (1 << 10) // 256 kB
+
+func ValidateAnnotationsSize(annotations map[string]string) error {
+	var totalSize int64
+	for k, v := range annotations {
+		totalSize += (int64)(len(k)) + (int64)(len(v))
+	}
+	if totalSize > (int64)(TotalAnnotationSizeLimitB) {
+		return fmt.Errorf("annotations size %d is larger than limit %d", totalSize, TotalAnnotationSizeLimitB)
+	}
+	return nil
+}

pkg/config/v1/validation/server.go

@@ -16,6 +16,7 @@ package validation
 
 import (
 	"fmt"
+	"slices"
 
 	"github.com/samber/lo"
 
@@ -27,7 +28,7 @@ func ValidateServerConfig(c *v1.ServerConfig) (Warning, error) {
 		warnings Warning
 		errs     error
 	)
-	if !lo.Contains(SupportedAuthMethods, c.Auth.Method) {
+	if !slices.Contains(SupportedAuthMethods, c.Auth.Method) {
 		errs = AppendError(errs, fmt.Errorf("invalid auth method, optional values are %v", SupportedAuthMethods))
 	}
 	if !lo.Every(SupportedAuthAdditionalScopes, c.Auth.AdditionalScopes) {

pkg/config/v1/validation/visitor.go

@@ -17,8 +17,7 @@ package validation
 import (
 	"errors"
 	"fmt"
-
-	"github.com/samber/lo"
+	"slices"
 
 	v1 "github.com/fatedier/frp/pkg/config/v1"
 )
@@ -56,7 +55,7 @@ func validateVisitorBaseConfig(c *v1.VisitorBaseConfig) error {
 }
 
 func validateXTCPVisitorConfig(c *v1.XTCPVisitorConfig) error {
-	if !lo.Contains([]string{"kcp", "quic"}, c.Protocol) {
+	if !slices.Contains([]string{"kcp", "quic"}, c.Protocol) {
 		return fmt.Errorf("protocol should be kcp or quic")
 	}
 	return nil

pkg/config/v1/visitor.go

@@ -15,6 +15,7 @@
 package v1
 
 import (
+	"bytes"
 	"encoding/json"
 	"errors"
 	"fmt"
@@ -43,6 +44,9 @@ type VisitorBaseConfig struct {
 	// It can be less than 0, it means don't bind to the port and only receive connections redirected from
 	// other visitors. (This is not supported for SUDP now)
 	BindPort int `json:"bindPort,omitempty"`
+
+	// Plugin specifies what plugin should be used.
+	Plugin TypedVisitorPluginOptions `json:"plugin,omitempty"`
 }
 
 func (c *VisitorBaseConfig) GetBaseConfig() *VisitorBaseConfig {
@@ -108,19 +112,29 @@ func (c *TypedVisitorConfig) UnmarshalJSON(b []byte) error {
 	if configurer == nil {
 		return fmt.Errorf("unknown visitor type: %s", typeStruct.Type)
 	}
-	if err := json.Unmarshal(b, configurer); err != nil {
-		return err
+	decoder := json.NewDecoder(bytes.NewBuffer(b))
+	if DisallowUnknownFields {
+		decoder.DisallowUnknownFields()
+	}
+	if err := decoder.Decode(configurer); err != nil {
+		return fmt.Errorf("unmarshal VisitorConfig error: %v", err)
 	}
 	c.VisitorConfigurer = configurer
 	return nil
 }
 
+func (c *TypedVisitorConfig) MarshalJSON() ([]byte, error) {
+	return json.Marshal(c.VisitorConfigurer)
+}
+
 func NewVisitorConfigurerByType(t VisitorType) VisitorConfigurer {
 	v, ok := visitorConfigTypeMap[t]
 	if !ok {
 		return nil
 	}
-	return reflect.New(v).Interface().(VisitorConfigurer)
+	vc := reflect.New(v).Interface().(VisitorConfigurer)
+	vc.GetBaseConfig().Type = string(t)
+	return vc
 }
 
 var _ VisitorConfigurer = &STCPVisitorConfig{}