Fix: clear IP data when VPN is stopped

- Check target IP matches a server for Wireguard since we need the public key
- Streamline connection picking for all providers

.devcontainer/Dockerfile

@@ -1 +1,2 @@
 FROM qmcgaw/godevcontainer
+RUN apk add wireguard-tools

.devcontainer/docker-compose.yml

@@ -4,6 +4,8 @@ services:
   vscode:
     build: .
     image: godevcontainer
+    devices:
+      - /dev/net/tun:/dev/net/tun
     volumes:
       - ../:/workspace
       # Docker socket to access Docker server
@@ -23,7 +25,8 @@ services:
       - TZ=
     cap_add:
       # For debugging with dlv
-      - SYS_PTRACE
+      # - SYS_PTRACE
+      - NET_ADMIN
     security_opt:
       # For debugging with dlv
       - seccomp:unconfined

.github/labels.yml

@@ -70,6 +70,9 @@
 - name: "Openvpn"
   color: "ffc7ea"
   description: ""
+- name: "Wireguard"
+  color: "ffc7ea"
+  description: ""
 - name: "Unbound (DNS over TLS)"
   color: "ffc7ea"
   description: ""

Dockerfile

@@ -1,6 +1,6 @@
 ARG ALPINE_VERSION=3.14
-ARG GO_ALPINE_VERSION=3.13
-ARG GO_VERSION=1.16
+ARG GO_ALPINE_VERSION=3.14
+ARG GO_VERSION=1.17
 ARG XCPUTRANSLATE_VERSION=v0.6.0
 ARG GOLANGCI_LINT_VERSION=v1.41.1
 ARG BUILDPLATFORM=linux/amd64
@@ -68,6 +68,8 @@ LABEL \
     org.opencontainers.image.description="VPN swiss-knife like client to tunnel to multiple VPN servers using OpenVPN, IPtables, DNS over TLS, Shadowsocks, an HTTP proxy and Alpine Linux"
 ENV VPNSP=pia \
     VERSION_INFORMATION=on \
+    LOG_LEVEL=info \
+    VPN_TYPE=openvpn \
     PROTOCOL=udp \
     OPENVPN_VERSION=2.5 \
     OPENVPN_VERBOSITY=1 \
@@ -76,6 +78,12 @@ ENV VPNSP=pia \
     OPENVPN_TARGET_IP= \
     OPENVPN_IPV6=off \
     OPENVPN_CUSTOM_CONFIG= \
+    OPENVPN_INTERFACE=tun0 \
+    WIREGUARD_PRIVATE_KEY= \
+    WIREGUARD_PRESHARED_KEY= \
+    WIREGUARD_ADDRESS= \
+    WIREGUARD_PORT= \
+    WIREGUARD_INTERFACE=wg0 \
     TZ= \
     PUID= \
     PGID= \

README.md

@@ -5,7 +5,7 @@ HideMyAss, IPVanish, IVPN, Mullvad, NordVPN, Privado, Private Internet Access, P
 ProtonVPN, PureVPN, Surfshark, TorGuard, VPNUnlimited, VyprVPN and Windscribe VPN servers
 using Go, OpenVPN, iptables, DNS over TLS, ShadowSocks and an HTTP proxy*
 
-**ANNOUNCEMENT**:
+**ANNOUNCEMENT**: Wireguard is now supported for all providers supporting it!
 
 ![Title image](https://raw.githubusercontent.com/qdm12/gluetun/master/title.svg)
 
@@ -55,9 +55,10 @@ using Go, OpenVPN, iptables, DNS over TLS, ShadowSocks and an HTTP proxy*
 
 ## Features
 
-- Based on Alpine 3.13 for a small Docker image of 54MB
+- Based on Alpine 3.14 for a small Docker image of 31MB
 - Supports: **Cyberghost**, **FastestVPN**, **HideMyAss**, **IPVanish**, **IVPN**, **Mullvad**, **NordVPN**, **Privado**, **Private Internet Access**, **PrivateVPN**, **ProtonVPN**, **PureVPN**,  **Surfshark**, **TorGuard**, **VPNUnlimited**, **Vyprvpn**, **Windscribe** servers
-- Supports Openvpn only for now
+- Supports OpenVPN
+- Supports Wireguard for **Mullvad**, **Ivpn** and **Windscribe** (more in progress, see #134)
 - DNS over TLS baked in with service provider(s) of your choice
 - DNS fine blocking of malicious/ads/surveillance hostnames and IP addresses, with live update every 24 hours
 - Choose the vpn network protocol, `udp` or `tcp`
@@ -110,6 +111,7 @@ The following points are all optional but should give you insights on all the po
 
 - [Test your setup](https://github.com/qdm12/gluetun/wiki/Test-your-setup)
 - [How to connect other containers and devices to Gluetun](https://github.com/qdm12/gluetun/wiki/Connect-to-gluetun)
+- [How to use Wireguard](https://github.com/qdm12/gluetun/wiki/Wireguard)
 - [VPN server side port forwarding](https://github.com/qdm12/gluetun/wiki/Port-forwarding)
 - [HTTP control server](https://github.com/qdm12/gluetun/wiki/HTTP-Control-server) to automate things, restart Openvpn etc.
 - Update the image with `docker pull qmcgaw/gluetun:latest`. See this [Wiki document](https://github.com/qdm12/gluetun/wiki/Docker-image-tags) for Docker tags available.

cmd/gluetun/main.go

@@ -22,6 +22,7 @@ import (
 	"github.com/qdm12/gluetun/internal/healthcheck"
 	"github.com/qdm12/gluetun/internal/httpproxy"
 	"github.com/qdm12/gluetun/internal/models"
+	"github.com/qdm12/gluetun/internal/netlink"
 	"github.com/qdm12/gluetun/internal/openvpn"
 	"github.com/qdm12/gluetun/internal/portforward"
 	"github.com/qdm12/gluetun/internal/publicip"
@@ -29,9 +30,9 @@ import (
 	"github.com/qdm12/gluetun/internal/server"
 	"github.com/qdm12/gluetun/internal/shadowsocks"
 	"github.com/qdm12/gluetun/internal/storage"
-	"github.com/qdm12/gluetun/internal/unix"
+	"github.com/qdm12/gluetun/internal/tun"
 	"github.com/qdm12/gluetun/internal/updater"
-	versionpkg "github.com/qdm12/gluetun/internal/version"
+	"github.com/qdm12/gluetun/internal/vpn"
 	"github.com/qdm12/golibs/command"
 	"github.com/qdm12/golibs/logging"
 	"github.com/qdm12/golibs/params"
@@ -59,29 +60,32 @@ func main() {
 		Created: created,
 	}
 
-	ctx := context.Background()
-	ctx, stop := signal.NotifyContext(ctx, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
-	ctx, cancel := context.WithCancel(ctx)
+	background := context.Background()
+	signalCtx, stop := signal.NotifyContext(background, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
+	ctx, cancel := context.WithCancel(background)
 
-	logger := logging.NewParent(logging.Settings{
+	logger := logging.New(logging.Settings{
 		Level: logging.LevelInfo,
 	})
 
 	args := os.Args
-	unix := unix.New()
+	tun := tun.New()
+	netLinker := netlink.New()
 	cli := cli.New()
-	env := params.NewEnv()
+	env := params.New()
 	cmder := command.NewCmder()
 
 	errorCh := make(chan error)
 	go func() {
-		errorCh <- _main(ctx, buildInfo, args, logger, env, unix, cmder, cli)
+		errorCh <- _main(ctx, buildInfo, args, logger, env, tun, netLinker, cmder, cli)
 	}()
 
 	select {
-	case <-ctx.Done():
+	case <-signalCtx.Done():
 		stop()
+		fmt.Println("")
 		logger.Warn("Caught OS signal, shutting down")
+		cancel()
 	case err := <-errorCh:
 		stop()
 		close(errorCh)
@@ -113,8 +117,9 @@ var (
 
 //nolint:gocognit,gocyclo
 func _main(ctx context.Context, buildInfo models.BuildInformation,
-	args []string, logger logging.ParentLogger, env params.Env,
-	unix unix.Unix, cmder command.RunStarter, cli cli.CLIer) error {
+	args []string, logger logging.ParentLogger, env params.Interface,
+	tun tun.Interface, netLinker netlink.NetLinker, cmder command.RunStarter,
+	cli cli.CLIer) error {
 	if len(args) > 1 { // cli operation
 		switch args[1] {
 		case "healthcheck":
@@ -122,7 +127,7 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		case "clientkey":
 			return cli.ClientKey(args[2:])
 		case "openvpnconfig":
-			return cli.OpenvpnConfig(logger)
+			return cli.OpenvpnConfig(logger, env)
 		case "update":
 			return cli.Update(ctx, args[2:], logger)
 		default:
@@ -130,19 +135,37 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		}
 	}
 
+	// TODO run this in a loop or in openvpn to reload from file without restarting
+	storageLogger := logger.NewChild(logging.Settings{Prefix: "storage: "})
+	storage, err := storage.New(storageLogger, constants.ServersData)
+	if err != nil {
+		return err
+	}
+	allServers := storage.GetServers()
+
+	var allSettings configuration.Settings
+	err = allSettings.Read(env, allServers,
+		logger.NewChild(logging.Settings{Prefix: "configuration: "}))
+	if err != nil {
+		return err
+	}
+	logger.PatchLevel(allSettings.Log.Level)
+
+	puid, pgid := allSettings.System.PUID, allSettings.System.PGID
+
 	const clientTimeout = 15 * time.Second
 	httpClient := &http.Client{Timeout: clientTimeout}
 	// Create configurators
 	alpineConf := alpine.New()
-	ovpnConf := openvpn.NewConfigurator(
+	ovpnConf := openvpn.New(
 		logger.NewChild(logging.Settings{Prefix: "openvpn configurator: "}),
-		unix, cmder)
+		cmder, puid, pgid)
 	dnsCrypto := dnscrypto.New(httpClient, "", "")
 	const cacertsPath = "/etc/ssl/certs/ca-certificates.crt"
 	dnsConf := unbound.NewConfigurator(nil, cmder, dnsCrypto,
 		"/etc/unbound", "/usr/sbin/unbound", cacertsPath)
 
-	announcementExp, err := time.Parse(time.RFC3339, "2021-07-22T00:00:00Z")
+	announcementExp, err := time.Parse(time.RFC3339, "2021-10-02T00:00:00Z")
 	if err != nil {
 		return err
 	}
@@ -153,7 +176,7 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		Version:      buildInfo.Version,
 		Commit:       buildInfo.Commit,
 		BuildDate:    buildInfo.Created,
-		Announcement: "",
+		Announcement: "Wireguard is now supported for Mullvad, IVPN and Windscribe!",
 		AnnounceExp:  announcementExp,
 		// Sponsor information
 		PaypalUser:    "qmcgaw",
@@ -176,12 +199,6 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		return err
 	}
 
-	var allSettings configuration.Settings
-	err = allSettings.Read(env,
-		logger.NewChild(logging.Settings{Prefix: "configuration: "}))
-	if err != nil {
-		return err
-	}
 	logger.Info(allSettings.String())
 
 	if err := os.MkdirAll("/tmp/gluetun", 0644); err != nil {
@@ -191,18 +208,6 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		return err
 	}
 
-	// TODO run this in a loop or in openvpn to reload from file without restarting
-	storage := storage.New(
-		logger.NewChild(logging.Settings{Prefix: "storage: "}),
-		constants.ServersData)
-	allServers, err := storage.SyncServers(constants.GetAllServers())
-	if err != nil {
-		return err
-	}
-
-	// Should never change
-	puid, pgid := allSettings.System.PUID, allSettings.System.PGID
-
 	const defaultUsername = "nonrootuser"
 	nonRootUsername, err := alpineConf.CreateUser(defaultUsername, puid)
 	if err != nil {
@@ -214,12 +219,13 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 	// set it for Unbound
 	// TODO remove this when migrating to qdm12/dns v2
 	allSettings.DNS.Unbound.Username = nonRootUsername
+	allSettings.VPN.OpenVPN.ProcUser = nonRootUsername
 
 	if err := os.Chown("/etc/unbound", puid, pgid); err != nil {
 		return err
 	}
 
-	firewallLogLevel := logging.LevelInfo
+	firewallLogLevel := allSettings.Log.Level
 	if allSettings.Firewall.Debug {
 		firewallLogLevel = logging.LevelDebug
 	}
@@ -227,7 +233,7 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		Prefix: "routing: ",
 		Level:  firewallLogLevel,
 	})
-	routingConf := routing.NewRouting(routingLogger)
+	routingConf := routing.New(netLinker, routingLogger)
 
 	defaultInterface, defaultGateway, err := routingConf.DefaultRoute()
 	if err != nil {
@@ -271,17 +277,14 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 		return err
 	}
 
-	if err := ovpnConf.CheckTUN(); err != nil {
-		logger.Warn(err.Error())
-		err = ovpnConf.CreateTUN()
+	if err := tun.Check(constants.TunnelDevice); err != nil {
+		logger.Info(err.Error() + "; creating it...")
+		err = tun.Create(constants.TunnelDevice)
 		if err != nil {
 			return err
 		}
 	}
 
-	tunnelReadyCh := make(chan struct{})
-	defer close(tunnelReadyCh)
-
 	if allSettings.Firewall.Enabled {
 		err := firewallConf.SetEnabled(ctx, true) // disabled by default
 		if err != nil {
@@ -290,7 +293,8 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 	}
 
 	for _, vpnPort := range allSettings.Firewall.VPNInputPorts {
-		err = firewallConf.SetAllowedPort(ctx, vpnPort, string(constants.TUN))
+		vpnIntf := allSettings.VPN.VPNInterface()
+		err = firewallConf.SetAllowedPort(ctx, vpnPort, vpnIntf)
 		if err != nil {
 			return err
 		}
@@ -322,29 +326,12 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 	otherGroupHandler := goshutdown.NewGroupHandler("other", defaultGroupSettings)
 
 	portForwardLogger := logger.NewChild(logging.Settings{Prefix: "port forwarding: "})
-	portForwardLooper := portforward.NewLoop(allSettings.OpenVPN.Provider.PortForwarding,
+	portForwardLooper := portforward.NewLoop(allSettings.VPN.Provider.PortForwarding,
 		httpClient, firewallConf, portForwardLogger)
 	portForwardHandler, portForwardCtx, portForwardDone := goshutdown.NewGoRoutineHandler(
 		"port forwarding", goshutdown.GoRoutineSettings{Timeout: time.Second})
 	go portForwardLooper.Run(portForwardCtx, portForwardDone)
 
-	openvpnLogger := logger.NewChild(logging.Settings{Prefix: "openvpn: "})
-	openvpnLooper := openvpn.NewLoop(allSettings.OpenVPN, nonRootUsername, puid, pgid, allServers,
-		ovpnConf, firewallConf, routingConf, portForwardLooper, openvpnLogger, httpClient, tunnelReadyCh)
-	openvpnHandler, openvpnCtx, openvpnDone := goshutdown.NewGoRoutineHandler(
-		"openvpn", goshutdown.GoRoutineSettings{Timeout: time.Second})
-	// wait for restartOpenvpn
-	go openvpnLooper.Run(openvpnCtx, openvpnDone)
-
-	updaterLooper := updater.NewLooper(allSettings.Updater,
-		allServers, storage, openvpnLooper.SetServers, httpClient,
-		logger.NewChild(logging.Settings{Prefix: "updater: "}))
-	updaterHandler, updaterCtx, updaterDone := goshutdown.NewGoRoutineHandler(
-		"updater", defaultGoRoutineSettings)
-	// wait for updaterLooper.Restart() or its ticket launched with RunRestartTicker
-	go updaterLooper.Run(updaterCtx, updaterDone)
-	tickersGroupHandler.Add(updaterHandler)
-
 	unboundLogger := logger.NewChild(logging.Settings{Prefix: "dns over tls: "})
 	unboundLooper := dns.NewLoop(dnsConf, allSettings.DNS, httpClient,
 		unboundLogger)
@@ -354,6 +341,11 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 	go unboundLooper.Run(dnsCtx, dnsDone)
 	otherGroupHandler.Add(dnsHandler)
 
+	dnsTickerHandler, dnsTickerCtx, dnsTickerDone := goshutdown.NewGoRoutineHandler(
+		"dns ticker", defaultGoRoutineSettings)
+	go unboundLooper.RunRestartTicker(dnsTickerCtx, dnsTickerDone)
+	controlGroupHandler.Add(dnsTickerHandler)
+
 	publicIPLooper := publicip.NewLoop(httpClient,
 		logger.NewChild(logging.Settings{Prefix: "ip getter: "}),
 		allSettings.PublicIP, puid, pgid)
@@ -367,6 +359,29 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 	go publicIPLooper.RunRestartTicker(pubIPTickerCtx, pubIPTickerDone)
 	tickersGroupHandler.Add(pubIPTickerHandler)
 
+	vpnLogger := logger.NewChild(logging.Settings{Prefix: "vpn: "})
+	vpnLooper := vpn.NewLoop(allSettings.VPN,
+		allServers, ovpnConf, netLinker, firewallConf, routingConf, portForwardLooper,
+		cmder, publicIPLooper, unboundLooper, vpnLogger, httpClient,
+		buildInfo, allSettings.VersionInformation)
+	vpnHandler, vpnCtx, vpnDone := goshutdown.NewGoRoutineHandler(
+		"vpn", goshutdown.GoRoutineSettings{Timeout: time.Second})
+	go vpnLooper.Run(vpnCtx, vpnDone)
+
+	updaterLooper := updater.NewLooper(allSettings.Updater,
+		allServers, storage, vpnLooper.SetServers, httpClient,
+		logger.NewChild(logging.Settings{Prefix: "updater: "}))
+	updaterHandler, updaterCtx, updaterDone := goshutdown.NewGoRoutineHandler(
+		"updater", defaultGoRoutineSettings)
+	// wait for updaterLooper.Restart() or its ticket launched with RunRestartTicker
+	go updaterLooper.Run(updaterCtx, updaterDone)
+	tickersGroupHandler.Add(updaterHandler)
+
+	updaterTickerHandler, updaterTickerCtx, updaterTickerDone := goshutdown.NewGoRoutineHandler(
+		"updater ticker", defaultGoRoutineSettings)
+	go updaterLooper.RunRestartTicker(updaterTickerCtx, updaterTickerDone)
+	controlGroupHandler.Add(updaterTickerHandler)
+
 	httpProxyLooper := httpproxy.NewLoop(
 		logger.NewChild(logging.Settings{Prefix: "http proxy: "}),
 		allSettings.HTTPProxy)
@@ -382,25 +397,18 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 	go shadowsocksLooper.Run(shadowsocksCtx, shadowsocksDone)
 	otherGroupHandler.Add(shadowsocksHandler)
 
-	eventsRoutingHandler, eventsRoutingCtx, eventsRoutingDone := goshutdown.NewGoRoutineHandler(
-		"events routing", defaultGoRoutineSettings)
-	go routeReadyEvents(eventsRoutingCtx, eventsRoutingDone, buildInfo, tunnelReadyCh,
-		unboundLooper, updaterLooper, publicIPLooper, routingConf, logger, httpClient,
-		allSettings.VersionInformation)
-	controlGroupHandler.Add(eventsRoutingHandler)
-
 	controlServerAddress := ":" + strconv.Itoa(int(allSettings.ControlServer.Port))
 	controlServerLogging := allSettings.ControlServer.Log
 	httpServerHandler, httpServerCtx, httpServerDone := goshutdown.NewGoRoutineHandler(
 		"http server", defaultGoRoutineSettings)
 	httpServer := server.New(httpServerCtx, controlServerAddress, controlServerLogging,
 		logger.NewChild(logging.Settings{Prefix: "http server: "}),
-		buildInfo, openvpnLooper, portForwardLooper, unboundLooper, updaterLooper, publicIPLooper)
+		buildInfo, vpnLooper, portForwardLooper, unboundLooper, updaterLooper, publicIPLooper)
 	go httpServer.Run(httpServerCtx, httpServerDone)
 	controlGroupHandler.Add(httpServerHandler)
 
 	healthLogger := logger.NewChild(logging.Settings{Prefix: "healthcheck: "})
-	healthcheckServer := healthcheck.NewServer(allSettings.Health, healthLogger, openvpnLooper)
+	healthcheckServer := healthcheck.NewServer(allSettings.Health, healthLogger, vpnLooper)
 	healthServerHandler, healthServerCtx, healthServerDone := goshutdown.NewGoRoutineHandler(
 		"HTTP health server", defaultGoRoutineSettings)
 	go healthcheckServer.Run(healthServerCtx, healthServerDone)
@@ -413,11 +421,11 @@ func _main(ctx context.Context, buildInfo models.BuildInformation,
 	}
 	orderHandler := goshutdown.NewOrder("gluetun", orderSettings)
 	orderHandler.Append(controlGroupHandler, tickersGroupHandler, healthServerHandler,
-		openvpnHandler, portForwardHandler, otherGroupHandler)
+		vpnHandler, portForwardHandler, otherGroupHandler)
 
-	// Start openvpn for the first time in a blocking call
-	// until openvpn is launched
-	_, _ = openvpnLooper.ApplyStatus(ctx, constants.Running) // TODO option to disable with variable
+	// Start VPN for the first time in a blocking call
+	// until the VPN is launched
+	_, _ = vpnLooper.ApplyStatus(ctx, constants.Running) // TODO option to disable with variable
 
 	<-ctx.Done()
 
@@ -445,64 +453,3 @@ func printVersions(ctx context.Context, logger logging.Logger,
 
 	return nil
 }
-
-func routeReadyEvents(ctx context.Context, done chan<- struct{}, buildInfo models.BuildInformation,
-	tunnelReadyCh <-chan struct{},
-	unboundLooper dns.Looper, updaterLooper updater.Looper, publicIPLooper publicip.Looper,
-	routing routing.VPNGetter, logger logging.Logger, httpClient *http.Client,
-	versionInformation bool) {
-	defer close(done)
-
-	// for linters only
-	var restartTickerContext context.Context
-	var restartTickerCancel context.CancelFunc = func() {}
-
-	unboundTickerDone := make(chan struct{})
-	close(unboundTickerDone)
-	updaterTickerDone := make(chan struct{})
-	close(updaterTickerDone)
-
-	first := true
-	for {
-		select {
-		case <-ctx.Done():
-			restartTickerCancel() // for linters only
-			<-unboundTickerDone
-			<-updaterTickerDone
-			return
-		case <-tunnelReadyCh: // blocks until openvpn is connected
-			vpnDestination, err := routing.VPNDestinationIP()
-			if err != nil {
-				logger.Warn(err.Error())
-			} else {
-				logger.Info("VPN routing IP address: " + vpnDestination.String())
-			}
-
-			if unboundLooper.GetSettings().Enabled {
-				_, _ = unboundLooper.ApplyStatus(ctx, constants.Running)
-			}
-
-			restartTickerCancel() // stop previous restart tickers
-			<-unboundTickerDone
-			<-updaterTickerDone
-			restartTickerContext, restartTickerCancel = context.WithCancel(ctx)
-
-			// Runs the Public IP getter job once
-			_, _ = publicIPLooper.ApplyStatus(ctx, constants.Running)
-			if versionInformation && first {
-				first = false
-				message, err := versionpkg.GetMessage(ctx, buildInfo, httpClient)
-				if err != nil {
-					logger.Error("cannot get version information: " + err.Error())
-				} else {
-					logger.Info(message)
-				}
-			}
-
-			unboundTickerDone = make(chan struct{})
-			updaterTickerDone = make(chan struct{})
-			go unboundLooper.RunRestartTicker(restartTickerContext, unboundTickerDone)
-			go updaterLooper.RunRestartTicker(restartTickerContext, updaterTickerDone)
-		}
-	}
-}

docker-compose.yml

@@ -15,10 +15,11 @@ services:
     volumes:
       - /yourpath:/gluetun
     environment:
-      # More variables are available, see the readme table
+      # More variables are available, see the Wiki table
       - OPENVPN_USER=
       - OPENVPN_PASSWORD=
       - VPNSP=private internet access
+      - VPN_TYPE=openvpn
       # Timezone for accurate logs times
       - TZ=
     restart: always

go.mod

@@ -1,12 +1,12 @@
 module github.com/qdm12/gluetun
 
-go 1.16
+go 1.17
 
 require (
 	github.com/fatih/color v1.12.0
 	github.com/golang/mock v1.6.0
 	github.com/qdm12/dns v1.11.0
-	github.com/qdm12/golibs v0.0.0-20210723175634-a75ca7fd74c2
+	github.com/qdm12/golibs v0.0.0-20210822203818-5c568b0777b6
 	github.com/qdm12/goshutdown v0.1.0
 	github.com/qdm12/gosplash v0.1.0
 	github.com/qdm12/ss-server v0.3.0
@@ -14,5 +14,27 @@ require (
 	github.com/stretchr/testify v1.7.0
 	github.com/vishvananda/netlink v1.1.0
 	golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c
+	golang.zx2c4.com/wireguard v0.0.0-20210805125648-3957e9b9dd19
+	golang.zx2c4.com/wireguard/wgctrl v0.0.0-20210803171230-4253848d036c
 	inet.af/netaddr v0.0.0-20210718074554-06ca8145d722
 )
+
+require (
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/google/go-cmp v0.5.5 // indirect
+	github.com/josharian/native v0.0.0-20200817173448-b6b71def0850 // indirect
+	github.com/mattn/go-colorable v0.1.8 // indirect
+	github.com/mattn/go-isatty v0.0.12 // indirect
+	github.com/mdlayher/genetlink v1.0.0 // indirect
+	github.com/mdlayher/netlink v1.4.0 // indirect
+	github.com/miekg/dns v1.1.40 // indirect
+	github.com/mr-tron/base58 v1.2.0 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/riobard/go-bloom v0.0.0-20200614022211-cdc8013cb5b3 // indirect
+	github.com/vishvananda/netns v0.0.0-20191106174202-0a2b9b5464df // indirect
+	go4.org/intern v0.0.0-20210108033219-3eb7198706b2 // indirect
+	go4.org/unsafe/assume-no-moving-gc v0.0.0-20201222180813-1025295fd063 // indirect
+	golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 // indirect
+	golang.org/x/net v0.0.0-20210504132125-bbd867fde50d // indirect
+	gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c // indirect
+)

go.sum

@@ -33,11 +33,28 @@ github.com/golang/mock v1.5.0/go.mod h1:CWnOUgYIOo4TcNZ0wHX3YZCqsaM1I1Jvs6v3mP3K
 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/gomodule/redigo v2.0.0+incompatible/go.mod h1:B4C85qUVwatsJoIUNIfCRsp7qO0iAmpGFZ4EELWSbC4=
+github.com/google/go-cmp v0.2.0/go.mod h1:oXzfMopK8JAjlY9xF4vHSVASa0yLyX7SntLO5aqRK0M=
 github.com/google/go-cmp v0.3.0/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.3.1/go.mod h1:8QqcDgzrUqlUb/G2PQTWiueGozuR1884gddMywk6iLU=
+github.com/google/go-cmp v0.4.0/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.2/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.4/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
+github.com/google/go-cmp v0.5.5 h1:Khx7svrCpmxxtHBq5j2mp/xVjsi8hQMfNLvJFAlrGgU=
+github.com/google/go-cmp v0.5.5/go.mod h1:v8dTdLbMG2kIc/vJvl+f65V22dbkXbowE6jgT/gNBxE=
 github.com/google/uuid v1.0.0/go.mod h1:TIyPZe4MgqvfeYDBFedMoGGpEw/LqOeaOT+nhxU+yHo=
 github.com/gotify/go-api-client/v2 v2.0.4/go.mod h1:VKiah/UK20bXsr0JObE1eBVLW44zbBouzjuri9iwjFU=
 github.com/jbenet/go-context v0.0.0-20150711004518-d14ea06fba99/go.mod h1:1lJo3i6rXxKeerYnT8Nvf0QmHCRC1n8sfWVwXF2Frvo=
 github.com/jessevdk/go-flags v1.4.0/go.mod h1:4FA24M0QyGHXBuZZK/XkWh8h0e1EYbRYJSGM75WSRxI=
+github.com/josharian/native v0.0.0-20200817173448-b6b71def0850 h1:uhL5Gw7BINiiPAo24A2sxkcDI0Jt/sqp1v5xQCniEFA=
+github.com/josharian/native v0.0.0-20200817173448-b6b71def0850/go.mod h1:7X/raswPFr05uY3HiLlYeyQntB6OO7E/d2Cu7qoaN2w=
+github.com/jsimonetti/rtnetlink v0.0.0-20190606172950-9527aa82566a/go.mod h1:Oz+70psSo5OFh8DBl0Zv2ACw7Esh6pPUphlvZG9x7uw=
+github.com/jsimonetti/rtnetlink v0.0.0-20200117123717-f846d4f6c1f4/go.mod h1:WGuG/smIU4J/54PblvSbh+xvCZmpJnFgr3ds6Z55XMQ=
+github.com/jsimonetti/rtnetlink v0.0.0-20201009170750-9c6f07d100c1/go.mod h1:hqoO/u39cqLeBLebZ8fWdE96O7FxrAsRYhnVOdgHxok=
+github.com/jsimonetti/rtnetlink v0.0.0-20201216134343-bde56ed16391/go.mod h1:cR77jAZG3Y3bsb8hF6fHJbFoyFukLFOkQ98S0pQz3xw=
+github.com/jsimonetti/rtnetlink v0.0.0-20201220180245-69540ac93943/go.mod h1:z4c53zj6Eex712ROyh8WI0ihysb5j2ROyV42iNogmAs=
+github.com/jsimonetti/rtnetlink v0.0.0-20210122163228-8d122574c736/go.mod h1:ZXpIyOK59ZnN7J0BV99cZUPmsqDRZ3eq5X+st7u/oSA=
+github.com/jsimonetti/rtnetlink v0.0.0-20210212075122-66c871082f2b h1:c3NTyLNozICy8B4mlMXemD3z/gXgQzVXZS/HqT+i3do=
+github.com/jsimonetti/rtnetlink v0.0.0-20210212075122-66c871082f2b/go.mod h1:8w9Rh8m+aHZIG69YPGGem1i5VzoyRC8nw2kA8B+ik5U=
 github.com/kevinburke/ssh_config v0.0.0-20190725054713-01f96b0aa0cd/go.mod h1:CT57kijsi8u/K/BOFA39wgDQJ9CxiF4nAY/ojJ6r6mM=
 github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
 github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
@@ -51,8 +68,24 @@ github.com/mattn/go-colorable v0.1.8 h1:c1ghPdyEDarC70ftn0y+A/Ee++9zz8ljHG1b13eJ
 github.com/mattn/go-colorable v0.1.8/go.mod h1:u6P/XSegPjTcexA+o6vUJrdnUu04hMope9wVRipJSqc=
 github.com/mattn/go-isatty v0.0.12 h1:wuysRhFDzyxgEmMf5xjvJ2M9dZoWAXNNr5LSBS7uHXY=
 github.com/mattn/go-isatty v0.0.12/go.mod h1:cbi8OIDigv2wuxKPP5vlRcQ1OAZbq2CE4Kysco4FUpU=
+github.com/mdlayher/ethtool v0.0.0-20210210192532-2b88debcdd43 h1:WgyLFv10Ov49JAQI/ZLUkCZ7VJS3r74hwFIGXJsgZlY=
+github.com/mdlayher/ethtool v0.0.0-20210210192532-2b88debcdd43/go.mod h1:+t7E0lkKfbBsebllff1xdTmyJt8lH37niI6kwFk9OTo=
+github.com/mdlayher/genetlink v1.0.0 h1:OoHN1OdyEIkScEmRgxLEe2M9U8ClMytqA5niynLtfj0=
+github.com/mdlayher/genetlink v1.0.0/go.mod h1:0rJ0h4itni50A86M2kHcgS85ttZazNt7a8H2a2cw0Gc=
+github.com/mdlayher/netlink v0.0.0-20190409211403-11939a169225/go.mod h1:eQB3mZE4aiYnlUsyGGCOpPETfdQq4Jhsgf1fk3cwQaA=
+github.com/mdlayher/netlink v1.0.0/go.mod h1:KxeJAFOFLG6AjpyDkQ/iIhxygIUKD+vcwqcnu43w/+M=
+github.com/mdlayher/netlink v1.1.0/go.mod h1:H4WCitaheIsdF9yOYu8CFmCgQthAPIWZmcKp9uZHgmY=
+github.com/mdlayher/netlink v1.1.1/go.mod h1:WTYpFb/WTvlRJAyKhZL5/uy69TDDpHHu2VZmb2XgV7o=
+github.com/mdlayher/netlink v1.2.0/go.mod h1:kwVW1io0AZy9A1E2YYgaD4Cj+C+GPkU6klXCMzIJ9p8=
+github.com/mdlayher/netlink v1.2.1/go.mod h1:bacnNlfhqHqqLo4WsYeXSqfyXkInQ9JneWI68v1KwSU=
+github.com/mdlayher/netlink v1.2.2-0.20210123213345-5cc92139ae3e/go.mod h1:bacnNlfhqHqqLo4WsYeXSqfyXkInQ9JneWI68v1KwSU=
+github.com/mdlayher/netlink v1.3.0/go.mod h1:xK/BssKuwcRXHrtN04UBkwQ6dY9VviGGuriDdoPSWys=
+github.com/mdlayher/netlink v1.4.0 h1:n3ARR+Fm0dDv37dj5wSWZXDKcy+U0zwcXS3zKMnSiT0=
+github.com/mdlayher/netlink v1.4.0/go.mod h1:dRJi5IABcZpBD2A3D0Mv/AiX8I9uDEu5oGkAVrekmf8=
 github.com/miekg/dns v1.1.40 h1:pyyPFfGMnciYUk/mXpKkVmeMQjfXqt3FAJ2hy7tPiLA=
 github.com/miekg/dns v1.1.40/go.mod h1:KNUDUusw/aVsxyTYZM1oqvCicbwhgbNgztCETuNZ7xM=
+github.com/mikioh/ipaddr v0.0.0-20190404000644-d465c8ab6721 h1:RlZweED6sbSArvlE924+mUcZuXKLBHA35U7LN621Bws=
+github.com/mikioh/ipaddr v0.0.0-20190404000644-d465c8ab6721/go.mod h1:Ickgr2WtCLZ2MDGd4Gr0geeCH5HybhRJbonOgQpvSxc=
 github.com/mitchellh/go-homedir v1.1.0/go.mod h1:SfyaCUpYCn1Vlf4IUYiD9fPX4A5wJrkLzIz1N1q0pr0=
 github.com/mitchellh/mapstructure v1.1.2/go.mod h1:FVVH3fgwuzCH5S8UJGiWEs2h04kUh9fWfEaFds41c1Y=
 github.com/mr-tron/base58 v1.2.0 h1:T/HDJBh4ZCPbU39/+c3rRvE0uKBQlU27+QI8LJ4t64o=
@@ -66,8 +99,9 @@ github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZN
 github.com/qdm12/dns v1.11.0 h1:jpcD5DZXXQSQe5a263PL09ghukiIdptvXFOZvyKEm6Q=
 github.com/qdm12/dns v1.11.0/go.mod h1:FmQsNOUcrrZ4UFzWAiED56AKXeNgaX3ySbmPwEfNjjE=
 github.com/qdm12/golibs v0.0.0-20210603202746-e5494e9c2ebb/go.mod h1:15RBzkun0i8XB7ADIoLJWp9ITRgsz3LroEI2FiOXLRg=
-github.com/qdm12/golibs v0.0.0-20210723175634-a75ca7fd74c2 h1:FMeOhe/bGloI0T5Wb6QB7/rfOqgFeI//UF/N/f7PUCI=
 github.com/qdm12/golibs v0.0.0-20210723175634-a75ca7fd74c2/go.mod h1:6aRbg4Z/bTbm9JfxsGXfWKHi7zsOvPfUTK1S5HuAFKg=
+github.com/qdm12/golibs v0.0.0-20210822203818-5c568b0777b6 h1:bge5AL7cjHJMPz+5IOz5yF01q/l8No6+lIEBieA8gMg=
+github.com/qdm12/golibs v0.0.0-20210822203818-5c568b0777b6/go.mod h1:6aRbg4Z/bTbm9JfxsGXfWKHi7zsOvPfUTK1S5HuAFKg=
 github.com/qdm12/goshutdown v0.1.0 h1:lmwnygdXtnr2pa6VqfR/bm8077/BnBef1+7CP96B7Sw=
 github.com/qdm12/goshutdown v0.1.0/go.mod h1:/LP3MWLqI+wGH/ijfaUG+RHzBbKXIiVKnrg5vXOCf6Q=
 github.com/qdm12/gosplash v0.1.0 h1:Sfl+zIjFZFP7b0iqf2l5UkmEY97XBnaKkH3FNY6Gf7g=
@@ -105,6 +139,8 @@ golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACk
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20200622213623-75b288015ac9/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
+golang.org/x/crypto v0.0.0-20210220033148-5ea612d1eb83/go.mod h1:jdWPYTVW3xRLrWPugEBEK3UY2ZEsg3UU495nc5E+M+I=
+golang.org/x/crypto v0.0.0-20210503195802-e9a32991a82e/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
 golang.org/x/crypto v0.0.0-20210513164829-c07d793c2f9a/go.mod h1:P+XmwS30IXTQdn5tA2iutPOUgjI07+tq3H3K9MVA1s8=
 golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97 h1:/UOmuWzQfxxo9UtlXMwuQU8CMgg1eZXqTRwkSQJWKOI=
 golang.org/x/crypto v0.0.0-20210711020723-a769d52b0f97/go.mod h1:GvvjBRRGRdwPK5ydBHafDWAxML/pGHZbMvKqRZ5+Abc=
@@ -112,38 +148,67 @@ golang.org/x/mod v0.1.1-0.20191105210325-c90efee705ee/go.mod h1:QqPTAvyqsEbceGzB
 golang.org/x/mod v0.3.0/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/mod v0.4.2/go.mod h1:s0Qsj1ACt9ePp/hMypM3fl4fZqREWJwdYDEqhRiZZUA=
 golang.org/x/net v0.0.0-20181005035420-146acd28ed58/go.mod h1:mL1N/T3taQHkDXs73rZJwtUhF3w3ftmwwsq0BUmARs4=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190404232315-eb5bcb51f2a3/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
 golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190724013045-ca1201d0de80/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20190827160401-ba9fcec4b297/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20190923162816-aa69164e4478/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20191007182048-72f939374954/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/net v0.0.0-20201010224723-4f7140c49acb/go.mod h1:sp8m0HH+o8qH0wwXwYZr8TS3Oi6o0r6Gce1SSxlDquU=
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+golang.org/x/net v0.0.0-20201216054612-986b41b23924/go.mod h1:m0MpNAwzfU5UDzcl9v0D8zg8gWTRqZa9RBIspLL5mdg=
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-golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4 h1:4nGaVu0QrbjT/AK2PRLuQfQuh6DJve+pELhqTdAj3x0=
 golang.org/x/net v0.0.0-20210405180319-a5a99cb37ef4/go.mod h1:p54w0d4576C0XHj96bSt6lcn1PtDYWL6XObtHCRCNQM=
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+golang.org/x/net v0.0.0-20210504132125-bbd867fde50d/go.mod h1:9nx3DQGgdP8bBQD5qxJ1jj9UTztislL4KSBs9R2vV5Y=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c h1:5KslGYwFpkhGh+Q16bwMP3cOontH8FOep7tGV86Y7SQ=
 golang.org/x/sync v0.0.0-20210220032951-036812b2e83c/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sys v0.0.0-20190726091711-fc99dfbffb4e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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+golang.org/x/sys v0.0.0-20191026070338-33540a1f6037/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200116001909-b77594299b42/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20200202164722-d101bd2416d5/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200223170610-d5e6a3e2c0ae/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20200930185726-fdedc70b468f/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201009025420-dfb3f7c4e634/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201118182958-a01c418693c7/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20201119102817-f84b799fce68/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20201218084310-7d0127a74742/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210110051926-789bb1bd4061/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210119212857-b64e53b001e4/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210123111255-9b0068b26619/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210124154548-22da62e12c0c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210216163648-f7da38b97c65/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210309040221-94ec62e08169/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20210330210617-4fbd30eecc44/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210403161142-5e06dd20ab57/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210423082822-04245dca01da/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210503173754-0981d6026fa6/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210510120138-977fb7262007/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210615035016-665e8c7367d1/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c h1:F1jZWGFhYfh0Ci55sIpILtKKK8p3i2/krTr0H1rg74I=
 golang.org/x/sys v0.0.0-20210630005230-0f9fa26af87c/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/term v0.0.0-20201117132131-f5c789dd3221/go.mod h1:Nr5EML6q2oocZ2LXRh80K7BxOlk5/8JxuGnuhpl+muw=
 golang.org/x/term v0.0.0-20201126162022-7de9c90e9dd1/go.mod h1:bj7SfCRtBDWHUb9snDiAeCFNEtKQo2Wmx5Cou7ajbmo=
 golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
 golang.org/x/text v0.3.2/go.mod h1:bEr9sfX3Q8Zfm5fL9x+3itogRgK3+ptLWKqgva+5dAk=
 golang.org/x/text v0.3.3/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
+golang.org/x/text v0.3.6/go.mod h1:5Zoc/QRtKVWzQhOtBMvqHzDpF6irO9z98xDceosuGiQ=
 golang.org/x/tools v0.0.0-20180917221912-90fa682c2a6e/go.mod h1:n7NCudcB/nEzxVGmLbDWY5pfWTLqBcC2KZ6jyYvM4mQ=
 golang.org/x/tools v0.0.0-20190729092621-ff9f1409240a/go.mod h1:jcCCGcm9btYwXyDqrUWc6MKQKKGJCWEQ3AfLSRIbEuI=
 golang.org/x/tools v0.0.0-20191119224855-298f0cb1881e/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
@@ -152,7 +217,14 @@ golang.org/x/tools v0.1.0/go.mod h1:xkSsbof2nBLbhDlRMhhhyNLN/zl3eTqcnHD5viDpcZ0=
 golang.org/x/tools v0.1.1/go.mod h1:o0xws9oXOQQZyjljx8fwUC0k7L1pTE6eaCbjGeHmOkk=
 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 h1:go1bK/D/BFZV2I8cIQd1NKEZ+0owSTG1fDTci4IqFcE=
 golang.org/x/xerrors v0.0.0-20200804184101-5ec99f83aff1/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+golang.zx2c4.com/wireguard v0.0.0-20210427022245-097af6e1351b/go.mod h1:a057zjmoc00UN7gVkaJt2sXVK523kMJcogDTEvPIasg=
+golang.zx2c4.com/wireguard v0.0.0-20210805125648-3957e9b9dd19 h1:ab2jcw2W91Rz07eHAb8Lic7sFQKO0NhBftjv6m/gL/0=
+golang.zx2c4.com/wireguard v0.0.0-20210805125648-3957e9b9dd19/go.mod h1:laHzsbfMhGSobUmruXWAyMKKHSqvIcrqZJMyHD+/3O8=
+golang.zx2c4.com/wireguard/wgctrl v0.0.0-20210803171230-4253848d036c h1:ADNrRDI5NR23/TUCnEmlLZLt4u9DnZ2nwRkPrAcFvto=
+golang.zx2c4.com/wireguard/wgctrl v0.0.0-20210803171230-4253848d036c/go.mod h1:+1XihzyZUBJcSc5WO9SwNA7v26puQwOEDwanaxfNXPQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
 gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=

internal/cli/healthcheck.go

@@ -13,10 +13,10 @@ import (
 )
 
 type HealthChecker interface {
-	HealthCheck(ctx context.Context, env params.Env, logger logging.Logger) error
+	HealthCheck(ctx context.Context, env params.Interface, logger logging.Logger) error
 }
 
-func (c *CLI) HealthCheck(ctx context.Context, env params.Env,
+func (c *CLI) HealthCheck(ctx context.Context, env params.Interface,
 	logger logging.Logger) error {
 	// Extract the health server port from the configuration.
 	config := configuration.Health{}

internal/cli/openvpnconfig.go

@@ -14,26 +14,27 @@ import (
 )
 
 type OpenvpnConfigMaker interface {
-	OpenvpnConfig(logger logging.Logger) error
+	OpenvpnConfig(logger logging.Logger, env params.Interface) error
 }
 
-func (c *CLI) OpenvpnConfig(logger logging.Logger) error {
+func (c *CLI) OpenvpnConfig(logger logging.Logger, env params.Interface) error {
+	storage, err := storage.New(logger, constants.ServersData)
+	if err != nil {
+		return err
+	}
+	allServers := storage.GetServers()
+
 	var allSettings configuration.Settings
-	err := allSettings.Read(params.NewEnv(), logger)
+	err = allSettings.Read(env, allServers, logger)
 	if err != nil {
 		return err
 	}
-	allServers, err := storage.New(logger, constants.ServersData).
-		SyncServers(constants.GetAllServers())
+	providerConf := provider.New(allSettings.VPN.Provider.Name, allServers, time.Now)
+	connection, err := providerConf.GetConnection(allSettings.VPN.Provider.ServerSelection)
 	if err != nil {
 		return err
 	}
-	providerConf := provider.New(allSettings.OpenVPN.Provider.Name, allServers, time.Now)
-	connection, err := providerConf.GetOpenVPNConnection(allSettings.OpenVPN.Provider.ServerSelection)
-	if err != nil {
-		return err
-	}
-	lines := providerConf.BuildConf(connection, "nonroortuser", allSettings.OpenVPN)
+	lines := providerConf.BuildConf(connection, allSettings.VPN.OpenVPN)
 	fmt.Println(strings.Join(lines, "\n"))
 	return nil
 }

internal/cli/update.go

@@ -20,7 +20,7 @@ import (
 
 var (
 	ErrModeUnspecified         = errors.New("at least one of -enduser or -maintainers must be specified")
-	ErrSyncServers             = errors.New("cannot sync hardcoded and persisted servers")
+	ErrNewStorage              = errors.New("cannot create storage")
 	ErrUpdateServerInformation = errors.New("cannot update server information")
 	ErrWriteToFile             = errors.New("cannot write updated information to file")
 )
@@ -68,11 +68,13 @@ func (c *CLI) Update(ctx context.Context, args []string, logger logging.Logger)
 
 	const clientTimeout = 10 * time.Second
 	httpClient := &http.Client{Timeout: clientTimeout}
-	storage := storage.New(logger, constants.ServersData)
-	currentServers, err := storage.SyncServers(constants.GetAllServers())
+
+	storage, err := storage.New(logger, constants.ServersData)
 	if err != nil {
-		return fmt.Errorf("%w: %s", ErrSyncServers, err)
+		return fmt.Errorf("%w: %s", ErrNewStorage, err)
 	}
+	currentServers := storage.GetServers()
+
 	updater := updater.New(options, httpClient, currentServers, logger)
 	allServers, err := updater.UpdateServers(ctx)
 	if err != nil {

internal/configuration/cyberghost.go

@@ -6,66 +6,45 @@ import (
 	"github.com/qdm12/gluetun/internal/constants"
 )
 
-func (settings *Provider) cyberghostLines() (lines []string) {
-	lines = append(lines, lastIndent+"Server groups: "+commaJoin(settings.ServerSelection.Groups))
-
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	if settings.ExtraConfigOptions.ClientKey != "" {
-		lines = append(lines, lastIndent+"Client key is set")
-	}
-
-	if settings.ExtraConfigOptions.ClientCertificate != "" {
-		lines = append(lines, lastIndent+"Client certificate is set")
-	}
-
-	return lines
-}
-
 func (settings *Provider) readCyberghost(r reader) (err error) {
 	settings.Name = constants.Cyberghost
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetCyberghost()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ExtraConfigOptions.ClientKey, err = readClientKey(r)
-	if err != nil {
-		return err
-	}
-
-	settings.ExtraConfigOptions.ClientCertificate, err = readClientCertificate(r)
-	if err != nil {
-		return err
-	}
-
 	settings.ServerSelection.Groups, err = r.env.CSVInside("CYBERGHOST_GROUP",
-		constants.CyberghostGroupChoices())
+		constants.CyberghostGroupChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CYBERGHOST_GROUP: %w", err)
 	}
 
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.CyberghostRegionChoices())
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.CyberghostRegionChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable REGION: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.CyberghostHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.CyberghostHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
+	return settings.ServerSelection.OpenVPN.readProtocolAndPort(r.env)
+}
+
+func (settings *OpenVPN) readCyberghost(r reader) (err error) {
+	settings.ClientKey, err = readClientKey(r)
+	if err != nil {
+		return err
+	}
+
+	settings.ClientCrt, err = readClientCertificate(r)
+	if err != nil {
+		return err
+	}
+
 	return nil
 }

internal/configuration/dns.go

@@ -102,7 +102,7 @@ var (
 	ErrDNSAddressNotAnIP = errors.New("DNS plaintext address is not an IP address")
 )
 
-func (settings *DNS) readDNSPlaintext(env params.Env) error {
+func (settings *DNS) readDNSPlaintext(env params.Interface) error {
 	s, err := env.Get("DNS_PLAINTEXT_ADDRESS", params.Default("1.1.1.1"))
 	if err != nil {
 		return fmt.Errorf("environment variable DNS_PLAINTEXT_ADDRESS: %w", err)

internal/configuration/dnsblacklist.go

@@ -36,7 +36,7 @@ var (
 	ErrInvalidPrivateAddress = errors.New("private address is not a valid IP or CIDR range")
 )
 
-func (settings *DNS) readPrivateAddresses(env params.Env) (err error) {
+func (settings *DNS) readPrivateAddresses(env params.Interface) (err error) {
 	privateAddresses, err := env.CSV("DOT_PRIVATE_ADDRESS")
 	if err != nil {
 		return fmt.Errorf("environment variable DOT_PRIVATE_ADDRESS: %w", err)

internal/configuration/fastestvpn.go

@@ -6,40 +6,25 @@ import (
 	"github.com/qdm12/gluetun/internal/constants"
 )
 
-func (settings *Provider) fastestvpnLines() (lines []string) {
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readFastestvpn(r reader) (err error) {
 	settings.Name = constants.Fastestvpn
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetFastestvpn()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.FastestvpnHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.FastestvpnHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.FastestvpnCountriesChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.FastestvpnCountriesChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	return nil
+	return settings.ServerSelection.OpenVPN.readProtocolOnly(r.env)
 }

internal/configuration/firewall.go

@@ -73,7 +73,7 @@ func (settings *Firewall) read(r reader) (err error) {
 	return settings.readOutboundSubnets(r)
 }
 
-func (settings *Firewall) readVPNInputPorts(env params.Env) (err error) {
+func (settings *Firewall) readVPNInputPorts(env params.Interface) (err error) {
 	settings.VPNInputPorts, err = readCSVPorts(env, "FIREWALL_VPN_INPUT_PORTS")
 	if err != nil {
 		return fmt.Errorf("environment variable FIREWALL_VPN_INPUT_PORTS: %w", err)
@@ -81,7 +81,7 @@ func (settings *Firewall) readVPNInputPorts(env params.Env) (err error) {
 	return nil
 }
 
-func (settings *Firewall) readInputPorts(env params.Env) (err error) {
+func (settings *Firewall) readInputPorts(env params.Interface) (err error) {
 	settings.InputPorts, err = readCSVPorts(env, "FIREWALL_INPUT_PORTS")
 	if err != nil {
 		return fmt.Errorf("environment variable FIREWALL_INPUT_PORTS: %w", err)

internal/configuration/health.go

@@ -4,6 +4,7 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/qdm12/gluetun/internal/models"
 	"github.com/qdm12/golibs/logging"
 	"github.com/qdm12/golibs/params"
 )
@@ -32,8 +33,8 @@ func (settings *Health) lines() (lines []string) {
 }
 
 // Read is to be used for the healthcheck query mode.
-func (settings *Health) Read(env params.Env, logger logging.Logger) (err error) {
-	reader := newReader(env, logger)
+func (settings *Health) Read(env params.Interface, logger logging.Logger) (err error) {
+	reader := newReader(env, models.AllServers{}, logger) // note: no need for servers data
 	return settings.read(reader)
 }
 

internal/configuration/health_test.go

@@ -139,7 +139,7 @@ func Test_Health_read(t *testing.T) {
 
 			ctrl := gomock.NewController(t)
 
-			env := mock_params.NewMockEnv(ctrl)
+			env := mock_params.NewMockInterface(ctrl)
 			logger := mock_logging.NewMockLogger(ctrl)
 
 			env.EXPECT().ListeningAddress("HEALTH_SERVER_ADDRESS", gomock.Any()).

internal/configuration/hidemyass.go

@@ -6,58 +6,35 @@ import (
 	"github.com/qdm12/gluetun/internal/constants"
 )
 
-func (settings *Provider) hideMyAssLines() (lines []string) {
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readHideMyAss(r reader) (err error) {
 	settings.Name = constants.HideMyAss
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetHideMyAss()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.HideMyAssCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.HideMyAssCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.HideMyAssCountryChoices())
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.HideMyAssCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable REGION: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.HideMyAssCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.HideMyAssCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.HideMyAssHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.HideMyAssHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	return nil
+	return settings.ServerSelection.OpenVPN.readProtocolAndPort(r.env)
 }

internal/configuration/ipvanish.go

@@ -6,49 +6,30 @@ import (
 	"github.com/qdm12/gluetun/internal/constants"
 )
 
-func (settings *Provider) ipvanishLines() (lines []string) {
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readIpvanish(r reader) (err error) {
 	settings.Name = constants.Ipvanish
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetIpvanish()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.IpvanishCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.IpvanishCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.IpvanishCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.IpvanishCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.IpvanishHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.IpvanishHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	return nil
+	return settings.ServerSelection.OpenVPN.readProtocolOnly(r.env)
 }

internal/configuration/ipvanish_test.go

@@ -7,46 +7,12 @@ import (
 
 	"github.com/golang/mock/gomock"
 	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/gluetun/internal/models"
 	"github.com/qdm12/golibs/params/mock_params"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
 
-func Test_Provider_ipvanishLines(t *testing.T) {
-	t.Parallel()
-
-	testCases := map[string]struct {
-		settings Provider
-		lines    []string
-	}{
-		"empty settings": {},
-		"full settings": {
-			settings: Provider{
-				ServerSelection: ServerSelection{
-					Countries: []string{"A", "B"},
-					Cities:    []string{"C", "D"},
-					Hostnames: []string{"E", "F"},
-				},
-			},
-			lines: []string{
-				"|--Countries: A, B",
-				"|--Cities: C, D",
-				"|--Hostnames: E, F",
-			},
-		},
-	}
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			lines := testCase.settings.ipvanishLines()
-
-			assert.Equal(t, testCase.lines, lines)
-		})
-	}
-}
-
 func Test_Provider_readIpvanish(t *testing.T) {
 	t.Parallel()
 
@@ -65,23 +31,15 @@ func Test_Provider_readIpvanish(t *testing.T) {
 	}
 
 	testCases := map[string]struct {
-		protocol  singleStringCall
 		targetIP  singleStringCall
 		countries sliceStringCall
 		cities    sliceStringCall
 		hostnames sliceStringCall
+		protocol  singleStringCall
 		settings  Provider
 		err       error
 	}{
-		"protocol error": {
-			protocol: singleStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ipvanish,
-			},
-			err: errors.New("environment variable PROTOCOL: dummy test error"),
-		},
 		"target IP error": {
-			protocol: singleStringCall{call: true},
 			targetIP: singleStringCall{call: true, value: "something", err: errDummy},
 			settings: Provider{
 				Name: constants.Ipvanish,
@@ -89,7 +47,6 @@ func Test_Provider_readIpvanish(t *testing.T) {
 			err: errors.New("environment variable OPENVPN_TARGET_IP: dummy test error"),
 		},
 		"countries error": {
-			protocol:  singleStringCall{call: true},
 			targetIP:  singleStringCall{call: true},
 			countries: sliceStringCall{call: true, err: errDummy},
 			settings: Provider{
@@ -98,7 +55,6 @@ func Test_Provider_readIpvanish(t *testing.T) {
 			err: errors.New("environment variable COUNTRY: dummy test error"),
 		},
 		"cities error": {
-			protocol:  singleStringCall{call: true},
 			targetIP:  singleStringCall{call: true},
 			countries: sliceStringCall{call: true},
 			cities:    sliceStringCall{call: true, err: errDummy},
@@ -108,7 +64,6 @@ func Test_Provider_readIpvanish(t *testing.T) {
 			err: errors.New("environment variable CITY: dummy test error"),
 		},
 		"hostnames error": {
-			protocol:  singleStringCall{call: true},
 			targetIP:  singleStringCall{call: true},
 			countries: sliceStringCall{call: true},
 			cities:    sliceStringCall{call: true},
@@ -118,26 +73,39 @@ func Test_Provider_readIpvanish(t *testing.T) {
 			},
 			err: errors.New("environment variable SERVER_HOSTNAME: dummy test error"),
 		},
-		"default settings": {
-			protocol:  singleStringCall{call: true},
+		"protocol error": {
 			targetIP:  singleStringCall{call: true},
 			countries: sliceStringCall{call: true},
 			cities:    sliceStringCall{call: true},
 			hostnames: sliceStringCall{call: true},
+			protocol:  singleStringCall{call: true, err: errDummy},
+			settings: Provider{
+				Name: constants.Ipvanish,
+			},
+			err: errors.New("environment variable PROTOCOL: dummy test error"),
+		},
+		"default settings": {
+			targetIP:  singleStringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			hostnames: sliceStringCall{call: true},
+			protocol:  singleStringCall{call: true},
 			settings: Provider{
 				Name: constants.Ipvanish,
 			},
 		},
 		"set settings": {
-			protocol:  singleStringCall{call: true, value: constants.TCP},
 			targetIP:  singleStringCall{call: true, value: "1.2.3.4"},
 			countries: sliceStringCall{call: true, values: []string{"A", "B"}},
 			cities:    sliceStringCall{call: true, values: []string{"C", "D"}},
 			hostnames: sliceStringCall{call: true, values: []string{"E", "F"}},
+			protocol:  singleStringCall{call: true, value: constants.TCP},
 			settings: Provider{
 				Name: constants.Ipvanish,
 				ServerSelection: ServerSelection{
-					TCP:       true,
+					OpenVPN: OpenVPNSelection{
+						TCP: true,
+					},
 					TargetIP:  net.IPv4(1, 2, 3, 4),
 					Countries: []string{"A", "B"},
 					Cities:    []string{"C", "D"},
@@ -152,29 +120,39 @@ func Test_Provider_readIpvanish(t *testing.T) {
 			t.Parallel()
 			ctrl := gomock.NewController(t)
 
-			env := mock_params.NewMockEnv(ctrl)
-			if testCase.protocol.call {
-				env.EXPECT().Inside("PROTOCOL", []string{constants.TCP, constants.UDP}, gomock.Any()).
-					Return(testCase.protocol.value, testCase.protocol.err)
+			servers := []models.IpvanishServer{{Hostname: "a"}}
+			allServers := models.AllServers{
+				Ipvanish: models.IpvanishServers{
+					Servers: servers,
+				},
 			}
+
+			env := mock_params.NewMockInterface(ctrl)
 			if testCase.targetIP.call {
 				env.EXPECT().Get("OPENVPN_TARGET_IP").
 					Return(testCase.targetIP.value, testCase.targetIP.err)
 			}
 			if testCase.countries.call {
-				env.EXPECT().CSVInside("COUNTRY", constants.IpvanishCountryChoices()).
+				env.EXPECT().CSVInside("COUNTRY", constants.IpvanishCountryChoices(servers)).
 					Return(testCase.countries.values, testCase.countries.err)
 			}
 			if testCase.cities.call {
-				env.EXPECT().CSVInside("CITY", constants.IpvanishCityChoices()).
+				env.EXPECT().CSVInside("CITY", constants.IpvanishCityChoices(servers)).
 					Return(testCase.cities.values, testCase.cities.err)
 			}
 			if testCase.hostnames.call {
-				env.EXPECT().CSVInside("SERVER_HOSTNAME", constants.IpvanishHostnameChoices()).
+				env.EXPECT().CSVInside("SERVER_HOSTNAME", constants.IpvanishHostnameChoices(servers)).
 					Return(testCase.hostnames.values, testCase.hostnames.err)
 			}
+			if testCase.protocol.call {
+				env.EXPECT().Inside("PROTOCOL", []string{constants.TCP, constants.UDP}, gomock.Any()).
+					Return(testCase.protocol.value, testCase.protocol.err)
+			}
 
-			r := reader{env: env}
+			r := reader{
+				servers: allServers,
+				env:     env,
+			}
 
 			var settings Provider
 			err := settings.readIpvanish(r)

internal/configuration/ivpn.go

@@ -4,51 +4,67 @@ import (
 	"fmt"
 
 	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/golibs/params"
 )
 
-func (settings *Provider) ivpnLines() (lines []string) {
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readIvpn(r reader) (err error) {
 	settings.Name = constants.Ivpn
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetIvpn()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.IvpnCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.IvpnCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.IvpnCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.IvpnCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.IvpnHostnameChoices())
+	settings.ServerSelection.ISPs, err = r.env.CSVInside("ISP", constants.IvpnISPChoices(servers))
+	if err != nil {
+		return fmt.Errorf("environment variable ISP: %w", err)
+	}
+
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.IvpnHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
+	err = settings.ServerSelection.OpenVPN.readIVPN(r.env)
+	if err != nil {
+		return err
+	}
+
+	return settings.ServerSelection.Wireguard.readIVPN(r.env)
+}
+
+func (settings *OpenVPNSelection) readIVPN(env params.Interface) (err error) {
+	settings.TCP, err = readProtocol(env)
+	if err != nil {
+		return err
+	}
+
+	settings.CustomPort, err = readOpenVPNCustomPort(env, settings.TCP,
+		[]uint16{80, 443, 1443}, []uint16{53, 1194, 2049, 2050})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (settings *WireguardSelection) readIVPN(env params.Interface) (err error) {
+	settings.CustomPort, err = readWireguardCustomPort(env,
+		[]uint16{2049, 2050, 53, 30587, 41893, 48574, 58237})
+	if err != nil {
+		return err
+	}
+
 	return nil
 }

internal/configuration/ivpn_test.go

@@ -7,47 +7,13 @@ import (
 
 	"github.com/golang/mock/gomock"
 	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/gluetun/internal/models"
 	"github.com/qdm12/golibs/params/mock_params"
 	"github.com/stretchr/testify/assert"
 	"github.com/stretchr/testify/require"
 )
 
-func Test_Provider_ivpnLines(t *testing.T) {
-	t.Parallel()
-
-	testCases := map[string]struct {
-		settings Provider
-		lines    []string
-	}{
-		"empty settings": {},
-		"full settings": {
-			settings: Provider{
-				ServerSelection: ServerSelection{
-					Countries: []string{"A", "B"},
-					Cities:    []string{"C", "D"},
-					Hostnames: []string{"E", "F"},
-				},
-			},
-			lines: []string{
-				"|--Countries: A, B",
-				"|--Cities: C, D",
-				"|--Hostnames: E, F",
-			},
-		},
-	}
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			lines := testCase.settings.ivpnLines()
-
-			assert.Equal(t, testCase.lines, lines)
-		})
-	}
-}
-
-func Test_Provider_readIvpn(t *testing.T) {
+func Test_Provider_readIvpn(t *testing.T) { //nolint:gocognit
 	t.Parallel()
 
 	var errDummy = errors.New("dummy test error")
@@ -58,6 +24,15 @@ func Test_Provider_readIvpn(t *testing.T) {
 		err   error
 	}
 
+	type portCall struct {
+		getCall   bool
+		getValue  string // "" or "0"
+		getErr    error
+		portCall  bool
+		portValue uint16
+		portErr   error
+	}
+
 	type sliceStringCall struct {
 		call   bool
 		values []string
@@ -65,23 +40,18 @@ func Test_Provider_readIvpn(t *testing.T) {
 	}
 
 	testCases := map[string]struct {
-		protocol  singleStringCall
 		targetIP  singleStringCall
 		countries sliceStringCall
 		cities    sliceStringCall
+		isps      sliceStringCall
 		hostnames sliceStringCall
+		protocol  singleStringCall
+		ovpnPort  portCall
+		wgPort    portCall
 		settings  Provider
 		err       error
 	}{
-		"protocol error": {
-			protocol: singleStringCall{call: true, err: errDummy},
-			settings: Provider{
-				Name: constants.Ivpn,
-			},
-			err: errors.New("environment variable PROTOCOL: dummy test error"),
-		},
 		"target IP error": {
-			protocol: singleStringCall{call: true},
 			targetIP: singleStringCall{call: true, value: "something", err: errDummy},
 			settings: Provider{
 				Name: constants.Ivpn,
@@ -89,7 +59,6 @@ func Test_Provider_readIvpn(t *testing.T) {
 			err: errors.New("environment variable OPENVPN_TARGET_IP: dummy test error"),
 		},
 		"countries error": {
-			protocol:  singleStringCall{call: true},
 			targetIP:  singleStringCall{call: true},
 			countries: sliceStringCall{call: true, err: errDummy},
 			settings: Provider{
@@ -98,7 +67,6 @@ func Test_Provider_readIvpn(t *testing.T) {
 			err: errors.New("environment variable COUNTRY: dummy test error"),
 		},
 		"cities error": {
-			protocol:  singleStringCall{call: true},
 			targetIP:  singleStringCall{call: true},
 			countries: sliceStringCall{call: true},
 			cities:    sliceStringCall{call: true, err: errDummy},
@@ -107,40 +75,102 @@ func Test_Provider_readIvpn(t *testing.T) {
 			},
 			err: errors.New("environment variable CITY: dummy test error"),
 		},
-		"hostnames error": {
-			protocol:  singleStringCall{call: true},
+		"isps error": {
 			targetIP:  singleStringCall{call: true},
 			countries: sliceStringCall{call: true},
 			cities:    sliceStringCall{call: true},
+			isps:      sliceStringCall{call: true, err: errDummy},
+			settings: Provider{
+				Name: constants.Ivpn,
+			},
+			err: errors.New("environment variable ISP: dummy test error"),
+		},
+		"hostnames error": {
+			targetIP:  singleStringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			isps:      sliceStringCall{call: true},
 			hostnames: sliceStringCall{call: true, err: errDummy},
 			settings: Provider{
 				Name: constants.Ivpn,
 			},
 			err: errors.New("environment variable SERVER_HOSTNAME: dummy test error"),
 		},
-		"default settings": {
-			protocol:  singleStringCall{call: true},
+		"openvpn protocol error": {
 			targetIP:  singleStringCall{call: true},
 			countries: sliceStringCall{call: true},
 			cities:    sliceStringCall{call: true},
+			isps:      sliceStringCall{call: true},
 			hostnames: sliceStringCall{call: true},
+			protocol:  singleStringCall{call: true, err: errDummy},
+			settings: Provider{
+				Name: constants.Ivpn,
+			},
+			err: errors.New("environment variable PROTOCOL: dummy test error"),
+		},
+		"openvpn custom port error": {
+			targetIP:  singleStringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			isps:      sliceStringCall{call: true},
+			hostnames: sliceStringCall{call: true},
+			protocol:  singleStringCall{call: true},
+			ovpnPort:  portCall{getCall: true, getErr: errDummy},
+			settings: Provider{
+				Name: constants.Ivpn,
+			},
+			err: errors.New("environment variable PORT: dummy test error"),
+		},
+		"wireguard custom port error": {
+			targetIP:  singleStringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			isps:      sliceStringCall{call: true},
+			hostnames: sliceStringCall{call: true},
+			protocol:  singleStringCall{call: true},
+			ovpnPort:  portCall{getCall: true, getValue: "0"},
+			wgPort:    portCall{getCall: true, getErr: errDummy},
+			settings: Provider{
+				Name: constants.Ivpn,
+			},
+			err: errors.New("environment variable WIREGUARD_PORT: dummy test error"),
+		},
+		"default settings": {
+			targetIP:  singleStringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			isps:      sliceStringCall{call: true},
+			hostnames: sliceStringCall{call: true},
+			protocol:  singleStringCall{call: true},
+			ovpnPort:  portCall{getCall: true, getValue: "0"},
+			wgPort:    portCall{getCall: true, getValue: "0"},
 			settings: Provider{
 				Name: constants.Ivpn,
 			},
 		},
 		"set settings": {
-			protocol:  singleStringCall{call: true, value: constants.TCP},
 			targetIP:  singleStringCall{call: true, value: "1.2.3.4"},
 			countries: sliceStringCall{call: true, values: []string{"A", "B"}},
 			cities:    sliceStringCall{call: true, values: []string{"C", "D"}},
+			isps:      sliceStringCall{call: true, values: []string{"ISP 1"}},
 			hostnames: sliceStringCall{call: true, values: []string{"E", "F"}},
+			protocol:  singleStringCall{call: true, value: constants.TCP},
+			ovpnPort:  portCall{getCall: true, portCall: true, portValue: 443},
+			wgPort:    portCall{getCall: true, portCall: true, portValue: 2049},
 			settings: Provider{
 				Name: constants.Ivpn,
 				ServerSelection: ServerSelection{
-					TCP:       true,
+					OpenVPN: OpenVPNSelection{
+						TCP:        true,
+						CustomPort: 443,
+					},
+					Wireguard: WireguardSelection{
+						CustomPort: 2049,
+					},
 					TargetIP:  net.IPv4(1, 2, 3, 4),
 					Countries: []string{"A", "B"},
 					Cities:    []string{"C", "D"},
+					ISPs:      []string{"ISP 1"},
 					Hostnames: []string{"E", "F"},
 				},
 			},
@@ -152,29 +182,60 @@ func Test_Provider_readIvpn(t *testing.T) {
 			t.Parallel()
 			ctrl := gomock.NewController(t)
 
-			env := mock_params.NewMockEnv(ctrl)
-			if testCase.protocol.call {
-				env.EXPECT().Inside("PROTOCOL", []string{constants.TCP, constants.UDP}, gomock.Any()).
-					Return(testCase.protocol.value, testCase.protocol.err)
+			env := mock_params.NewMockInterface(ctrl)
+
+			servers := []models.IvpnServer{{Hostname: "a"}}
+			allServers := models.AllServers{
+				Ivpn: models.IvpnServers{
+					Servers: servers,
+				},
 			}
+
 			if testCase.targetIP.call {
 				env.EXPECT().Get("OPENVPN_TARGET_IP").
 					Return(testCase.targetIP.value, testCase.targetIP.err)
 			}
 			if testCase.countries.call {
-				env.EXPECT().CSVInside("COUNTRY", constants.IvpnCountryChoices()).
+				env.EXPECT().CSVInside("COUNTRY", constants.IvpnCountryChoices(servers)).
 					Return(testCase.countries.values, testCase.countries.err)
 			}
 			if testCase.cities.call {
-				env.EXPECT().CSVInside("CITY", constants.IvpnCityChoices()).
+				env.EXPECT().CSVInside("CITY", constants.IvpnCityChoices(servers)).
 					Return(testCase.cities.values, testCase.cities.err)
 			}
+			if testCase.isps.call {
+				env.EXPECT().CSVInside("ISP", constants.IvpnISPChoices(servers)).
+					Return(testCase.isps.values, testCase.isps.err)
+			}
 			if testCase.hostnames.call {
-				env.EXPECT().CSVInside("SERVER_HOSTNAME", constants.IvpnHostnameChoices()).
+				env.EXPECT().CSVInside("SERVER_HOSTNAME", constants.IvpnHostnameChoices(servers)).
 					Return(testCase.hostnames.values, testCase.hostnames.err)
 			}
+			if testCase.protocol.call {
+				env.EXPECT().Inside("PROTOCOL", []string{constants.TCP, constants.UDP}, gomock.Any()).
+					Return(testCase.protocol.value, testCase.protocol.err)
+			}
+			if testCase.ovpnPort.getCall {
+				env.EXPECT().Get("PORT", gomock.Any()).
+					Return(testCase.ovpnPort.getValue, testCase.ovpnPort.getErr)
+			}
+			if testCase.ovpnPort.portCall {
+				env.EXPECT().Port("PORT").
+					Return(testCase.ovpnPort.portValue, testCase.ovpnPort.portErr)
+			}
+			if testCase.wgPort.getCall {
+				env.EXPECT().Get("WIREGUARD_PORT", gomock.Any()).
+					Return(testCase.wgPort.getValue, testCase.wgPort.getErr)
+			}
+			if testCase.wgPort.portCall {
+				env.EXPECT().Port("WIREGUARD_PORT").
+					Return(testCase.wgPort.portValue, testCase.wgPort.portErr)
+			}
 
-			r := reader{env: env}
+			r := reader{
+				servers: allServers,
+				env:     env,
+			}
 
 			var settings Provider
 			err := settings.readIvpn(r)

internal/configuration/log.go

@@ -0,0 +1,30 @@
+package configuration
+
+import (
+	"fmt"
+
+	"github.com/qdm12/golibs/logging"
+	"github.com/qdm12/golibs/params"
+)
+
+type Log struct {
+	Level logging.Level `json:"level"`
+}
+
+func (settings *Log) lines() (lines []string) {
+	lines = append(lines, lastIndent+"Log:")
+
+	lines = append(lines, indent+lastIndent+"Level: "+settings.Level.String())
+
+	return lines
+}
+
+func (settings *Log) read(env params.Interface) (err error) {
+	defaultLevel := logging.LevelInfo.String()
+	settings.Level, err = env.LogLevel("LOG_LEVEL", params.Default(defaultLevel))
+	if err != nil {
+		return fmt.Errorf("environment variable LOG_LEVEL: %w", err)
+	}
+
+	return nil
+}

internal/configuration/mullvad.go

@@ -2,87 +2,72 @@ package configuration
 
 import (
 	"fmt"
-	"strconv"
 
 	"github.com/qdm12/gluetun/internal/constants"
 	"github.com/qdm12/golibs/params"
 )
 
-func (settings *Provider) mullvadLines() (lines []string) {
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	if len(settings.ServerSelection.ISPs) > 0 {
-		lines = append(lines, lastIndent+"ISPs: "+commaJoin(settings.ServerSelection.ISPs))
-	}
-
-	if settings.ServerSelection.CustomPort > 0 {
-		lines = append(lines, lastIndent+"Custom port: "+strconv.Itoa(int(settings.ServerSelection.CustomPort)))
-	}
-
-	if settings.ExtraConfigOptions.OpenVPNIPv6 {
-		lines = append(lines, lastIndent+"IPv6: enabled")
-	}
-
-	return lines
-}
-
 func (settings *Provider) readMullvad(r reader) (err error) {
 	settings.Name = constants.Mullvad
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetMullvad()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.MullvadCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.MullvadCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.MullvadCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.MullvadCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.MullvadHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.MullvadHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	settings.ServerSelection.ISPs, err = r.env.CSVInside("ISP", constants.MullvadISPChoices())
+	settings.ServerSelection.ISPs, err = r.env.CSVInside("ISP", constants.MullvadISPChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable ISP: %w", err)
 	}
 
-	settings.ServerSelection.CustomPort, err = readCustomPort(r.env, settings.ServerSelection.TCP,
-		[]uint16{80, 443, 1401}, []uint16{53, 1194, 1195, 1196, 1197, 1300, 1301, 1302, 1303, 1400})
-	if err != nil {
-		return err
-	}
-
 	settings.ServerSelection.Owned, err = r.env.YesNo("OWNED", params.Default("no"))
 	if err != nil {
 		return fmt.Errorf("environment variable OWNED: %w", err)
 	}
 
-	settings.ExtraConfigOptions.OpenVPNIPv6, err = r.env.OnOff("OPENVPN_IPV6", params.Default("off"))
+	err = settings.ServerSelection.OpenVPN.readMullvad(r.env)
 	if err != nil {
-		return fmt.Errorf("environment variable OPENVPN_IPV6: %w", err)
+		return err
+	}
+
+	return settings.ServerSelection.Wireguard.readMullvad(r.env)
+}
+
+func (settings *OpenVPNSelection) readMullvad(env params.Interface) (err error) {
+	settings.TCP, err = readProtocol(env)
+	if err != nil {
+		return err
+	}
+
+	settings.CustomPort, err = readOpenVPNCustomPort(env, settings.TCP,
+		[]uint16{80, 443, 1401}, []uint16{53, 1194, 1195, 1196, 1197, 1300, 1301, 1302, 1303, 1400})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}
+
+func (settings *WireguardSelection) readMullvad(env params.Interface) (err error) {
+	settings.CustomPort, err = readWireguardCustomPort(env, nil)
+	if err != nil {
+		return err
 	}
 
 	return nil

internal/configuration/nordvpn.go

@@ -8,54 +8,26 @@ import (
 	"github.com/qdm12/golibs/params"
 )
 
-func (settings *Provider) nordvpnLines() (lines []string) {
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	if len(settings.ServerSelection.Names) > 0 {
-		lines = append(lines, lastIndent+"Names: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	if numbersUint16 := settings.ServerSelection.Numbers; len(numbersUint16) > 0 {
-		numbersString := make([]string, len(numbersUint16))
-		for i, numberUint16 := range numbersUint16 {
-			numbersString[i] = strconv.Itoa(int(numberUint16))
-		}
-		lines = append(lines, lastIndent+"Numbers: "+commaJoin(numbersString))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readNordvpn(r reader) (err error) {
 	settings.Name = constants.Nordvpn
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetNordvpn()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.NordvpnRegionChoices())
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.NordvpnRegionChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable REGION: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.NordvpnHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.NordvpnHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	settings.ServerSelection.Names, err = r.env.CSVInside("SERVER_NAME", constants.NordvpnHostnameChoices())
+	settings.ServerSelection.Names, err = r.env.CSVInside("SERVER_NAME", constants.NordvpnHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_NAME: %w", err)
 	}
@@ -65,10 +37,10 @@ func (settings *Provider) readNordvpn(r reader) (err error) {
 		return err
 	}
 
-	return nil
+	return settings.ServerSelection.OpenVPN.readProtocolOnly(r.env)
 }
 
-func readNordVPNServerNumbers(env params.Env) (numbers []uint16, err error) {
+func readNordVPNServerNumbers(env params.Interface) (numbers []uint16, err error) {
 	const possiblePortsCount = 65537
 	possibilities := make([]string, possiblePortsCount)
 	for i := range possibilities {

internal/configuration/openvpn.go

@@ -3,6 +3,7 @@ package configuration
 import (
 	"errors"
 	"fmt"
+	"regexp"
 	"strconv"
 	"strings"
 
@@ -20,9 +21,14 @@ type OpenVPN struct {
 	Root      bool     `json:"run_as_root"`
 	Cipher    string   `json:"cipher"`
 	Auth      string   `json:"auth"`
-	Provider  Provider `json:"provider"`
 	Config    string   `json:"custom_config"`
 	Version   string   `json:"version"`
+	ClientCrt string   `json:"-"`                 // Cyberghost
+	ClientKey string   `json:"-"`                 // Cyberghost, VPNUnlimited
+	EncPreset string   `json:"encryption_preset"` // PIA
+	IPv6      bool     `json:"ipv6"`              // Mullvad
+	ProcUser  string   `json:"procuser"`          // Process username
+	Interface string   `json:"interface"`
 }
 
 func (settings *OpenVPN) String() string {
@@ -36,6 +42,8 @@ func (settings *OpenVPN) lines() (lines []string) {
 
 	lines = append(lines, indent+lastIndent+"Verbosity level: "+strconv.Itoa(settings.Verbosity))
 
+	lines = append(lines, indent+lastIndent+"Network interface: "+settings.Interface)
+
 	if len(settings.Flags) > 0 {
 		lines = append(lines, indent+lastIndent+"Flags: "+strings.Join(settings.Flags, " "))
 	}
@@ -55,48 +63,32 @@ func (settings *OpenVPN) lines() (lines []string) {
 		lines = append(lines, indent+lastIndent+"Custom configuration: "+settings.Config)
 	}
 
-	if settings.Provider.Name == "" {
-		lines = append(lines, indent+lastIndent+"Provider: custom configuration")
-	} else {
-		lines = append(lines, indent+lastIndent+"Provider:")
-		for _, line := range settings.Provider.lines() {
-			lines = append(lines, indent+indent+line)
-		}
+	if settings.ClientKey != "" {
+		lines = append(lines, indent+lastIndent+"Client key is set")
+	}
+
+	if settings.ClientCrt != "" {
+		lines = append(lines, indent+lastIndent+"Client certificate is set")
+	}
+
+	if settings.IPv6 {
+		lines = append(lines, indent+lastIndent+"IPv6: enabled")
+	}
+
+	if settings.EncPreset != "" { // PIA only
+		lines = append(lines, indent+lastIndent+"Encryption preset: "+settings.EncPreset)
 	}
 
 	return lines
 }
 
-var (
-	ErrInvalidVPNProvider = errors.New("invalid VPN provider")
-)
-
-func (settings *OpenVPN) read(r reader) (err error) {
-	vpnsp, err := r.env.Inside("VPNSP", []string{
-		"cyberghost", "fastestvpn", "hidemyass", "ipvanish", "ivpn", "mullvad", "nordvpn",
-		"privado", "pia", "private internet access", "privatevpn", "protonvpn",
-		"purevpn", "surfshark", "torguard", constants.VPNUnlimited, "vyprvpn", "windscribe"},
-		params.Default("private internet access"))
-	if err != nil {
-		return fmt.Errorf("environment variable VPNSP: %w", err)
-	}
-	if vpnsp == "pia" { // retro compatibility
-		vpnsp = "private internet access"
-	}
-
-	settings.Provider.Name = vpnsp
-
+func (settings *OpenVPN) read(r reader, serviceProvider string) (err error) {
 	settings.Config, err = r.env.Get("OPENVPN_CUSTOM_CONFIG", params.CaseSensitiveValue())
 	if err != nil {
 		return fmt.Errorf("environment variable OPENVPN_CUSTOM_CONFIG: %w", err)
 	}
-	customConfig := settings.Config != ""
 
-	if customConfig {
-		settings.Provider.Name = ""
-	}
-
-	credentialsRequired := !customConfig && settings.Provider.Name != constants.VPNUnlimited
+	credentialsRequired := settings.Config == "" && serviceProvider != constants.VPNUnlimited
 
 	settings.User, err = r.getFromEnvOrSecretFile("OPENVPN_USER", credentialsRequired, []string{"USER"})
 	if err != nil {
@@ -105,7 +97,7 @@ func (settings *OpenVPN) read(r reader) (err error) {
 	// Remove spaces in user ID to simplify user's life, thanks @JeordyR
 	settings.User = strings.ReplaceAll(settings.User, " ", "")
 
-	if settings.Provider.Name == constants.Mullvad {
+	if serviceProvider == constants.Mullvad {
 		settings.Password = "m"
 	} else {
 		settings.Password, err = r.getFromEnvOrSecretFile("OPENVPN_PASSWORD", credentialsRequired, []string{"PASSWORD"})
@@ -155,50 +147,58 @@ func (settings *OpenVPN) read(r reader) (err error) {
 		return fmt.Errorf("environment variable OPENVPN_MSSFIX: %w", err)
 	}
 	settings.MSSFix = uint16(mssFix)
-	return settings.readProvider(r)
+
+	settings.IPv6, err = r.env.OnOff("OPENVPN_IPV6", params.Default("off"))
+	if err != nil {
+		return fmt.Errorf("environment variable OPENVPN_IPV6: %w", err)
+	}
+
+	settings.Interface, err = readInterface(r.env)
+	if err != nil {
+		return err
+	}
+
+	settings.EncPreset, err = getPIAEncryptionPreset(r)
+	if err != nil {
+		return err
+	}
+
+	switch serviceProvider {
+	case constants.Cyberghost:
+		err = settings.readCyberghost(r)
+	case constants.VPNUnlimited:
+		err = settings.readVPNUnlimited(r)
+	}
+	if err != nil {
+		return err
+	}
+
+	return nil
 }
 
-func (settings *OpenVPN) readProvider(r reader) error {
-	var readProvider func(r reader) error
-	switch settings.Provider.Name {
-	case "": // custom config
-		readProvider = func(r reader) error { return nil }
-	case constants.Cyberghost:
-		readProvider = settings.Provider.readCyberghost
-	case constants.Fastestvpn:
-		readProvider = settings.Provider.readFastestvpn
-	case constants.HideMyAss:
-		readProvider = settings.Provider.readHideMyAss
-	case constants.Ipvanish:
-		readProvider = settings.Provider.readIpvanish
-	case constants.Ivpn:
-		readProvider = settings.Provider.readIvpn
-	case constants.Mullvad:
-		readProvider = settings.Provider.readMullvad
-	case constants.Nordvpn:
-		readProvider = settings.Provider.readNordvpn
-	case constants.Privado:
-		readProvider = settings.Provider.readPrivado
-	case constants.PrivateInternetAccess:
-		readProvider = settings.Provider.readPrivateInternetAccess
-	case constants.Privatevpn:
-		readProvider = settings.Provider.readPrivatevpn
-	case constants.Protonvpn:
-		readProvider = settings.Provider.readProtonvpn
-	case constants.Purevpn:
-		readProvider = settings.Provider.readPurevpn
-	case constants.Surfshark:
-		readProvider = settings.Provider.readSurfshark
-	case constants.Torguard:
-		readProvider = settings.Provider.readTorguard
-	case constants.VPNUnlimited:
-		readProvider = settings.Provider.readVPNUnlimited
-	case constants.Vyprvpn:
-		readProvider = settings.Provider.readVyprvpn
-	case constants.Windscribe:
-		readProvider = settings.Provider.readWindscribe
-	default:
-		return fmt.Errorf("%w: %s", ErrInvalidVPNProvider, settings.Provider.Name)
+func readProtocol(env params.Interface) (tcp bool, err error) {
+	protocol, err := env.Inside("PROTOCOL", []string{constants.TCP, constants.UDP}, params.Default(constants.UDP))
+	if err != nil {
+		return false, fmt.Errorf("environment variable PROTOCOL: %w", err)
 	}
-	return readProvider(r)
+	return protocol == constants.TCP, nil
+}
+
+const openvpnIntfRegexString = `^.*[0-9]$`
+
+var openvpnIntfRegexp = regexp.MustCompile(openvpnIntfRegexString)
+var errInterfaceNameNotValid = errors.New("interface name is not valid")
+
+func readInterface(env params.Interface) (intf string, err error) {
+	intf, err = env.Get("OPENVPN_INTERFACE", params.Default("tun0"))
+	if err != nil {
+		return "", fmt.Errorf("environment variable OPENVPN_INTERFACE: %w", err)
+	}
+
+	if !openvpnIntfRegexp.MatchString(intf) {
+		return "", fmt.Errorf("%w: does not match regex %s: %s",
+			errInterfaceNameNotValid, openvpnIntfRegexString, intf)
+	}
+
+	return intf, nil
 }

internal/configuration/openvpn_test.go

@@ -13,9 +13,6 @@ func Test_OpenVPN_JSON(t *testing.T) {
 	in := OpenVPN{
 		Root:  true,
 		Flags: []string{},
-		Provider: Provider{
-			Name: "name",
-		},
 	}
 	data, err := json.MarshalIndent(in, "", "  ")
 	require.NoError(t, err)
@@ -28,35 +25,12 @@ func Test_OpenVPN_JSON(t *testing.T) {
   "run_as_root": true,
   "cipher": "",
   "auth": "",
-  "provider": {
-    "name": "name",
-    "server_selection": {
-      "tcp": false,
-      "regions": null,
-      "groups": null,
-      "countries": null,
-      "cities": null,
-      "hostnames": null,
-      "names": null,
-      "isps": null,
-      "owned": false,
-      "custom_port": 0,
-      "numbers": null,
-      "encryption_preset": "",
-      "free_only": false,
-      "stream_only": false
-    },
-    "extra_config": {
-      "encryption_preset": "",
-      "openvpn_ipv6": false
-    },
-    "port_forwarding": {
-      "enabled": false,
-      "filepath": ""
-    }
-  },
   "custom_config": "",
-  "version": ""
+  "version": "",
+  "encryption_preset": "",
+  "ipv6": false,
+  "procuser": "",
+  "interface": ""
 }`, string(data))
 	var out OpenVPN
 	err = json.Unmarshal(data, &out)

internal/configuration/privado.go

@@ -6,55 +6,31 @@ import (
 	"github.com/qdm12/gluetun/internal/constants"
 )
 
-func (settings *Provider) privadoLines() (lines []string) {
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readPrivado(r reader) (err error) {
 	settings.Name = constants.Privado
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetPrivado()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.PrivadoCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.PrivadoCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.PrivadoRegionChoices())
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.PrivadoRegionChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable REGION: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PrivadoCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PrivadoCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PrivadoHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PrivadoHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}

internal/configuration/privateinternetaccess.go

@@ -2,85 +2,35 @@ package configuration
 
 import (
 	"fmt"
-	"strconv"
 
 	"github.com/qdm12/gluetun/internal/constants"
 	"github.com/qdm12/golibs/params"
 )
 
-func (settings *Provider) privateinternetaccessLines() (lines []string) {
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	if len(settings.ServerSelection.Names) > 0 {
-		lines = append(lines, lastIndent+"Names: "+commaJoin(settings.ServerSelection.Names))
-	}
-
-	lines = append(lines, lastIndent+"Encryption preset: "+settings.ServerSelection.EncryptionPreset)
-
-	if settings.ServerSelection.CustomPort > 0 {
-		lines = append(lines, lastIndent+"Custom port: "+strconv.Itoa(int(settings.ServerSelection.CustomPort)))
-	}
-
-	if settings.PortForwarding.Enabled {
-		lines = append(lines, lastIndent+"Port forwarding:")
-		for _, line := range settings.PortForwarding.lines() {
-			lines = append(lines, indent+line)
-		}
-	}
-
-	return lines
-}
-
 func (settings *Provider) readPrivateInternetAccess(r reader) (err error) {
 	settings.Name = constants.PrivateInternetAccess
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetPia()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	encryptionPreset, err := r.env.Inside("PIA_ENCRYPTION",
-		[]string{constants.PIAEncryptionPresetNone, constants.PIAEncryptionPresetNormal, constants.PIAEncryptionPresetStrong},
-		params.RetroKeys([]string{"ENCRYPTION"}, r.onRetroActive),
-		params.Default(constants.PIACertificateStrong),
-	)
-	if err != nil {
-		return fmt.Errorf("environment variable PIA_ENCRYPTION: %w", err)
-	}
-	settings.ServerSelection.EncryptionPreset = encryptionPreset
-	settings.ExtraConfigOptions.EncryptionPreset = encryptionPreset
-
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.PIAGeoChoices())
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.PIAGeoChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable REGION: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PIAHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PIAHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_NAME", constants.PIANameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_NAME", constants.PIANameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_NAME: %w", err)
 	}
 
-	settings.ServerSelection.CustomPort, err = readPortOrZero(r.env, "PORT")
-	if err != nil {
-		return fmt.Errorf("environment variable PORT: %w", err)
-	}
-
 	settings.PortForwarding.Enabled, err = r.env.OnOff("PORT_FORWARDING", params.Default("off"))
 	if err != nil {
 		return fmt.Errorf("environment variable PORT_FORWARDING: %w", err)
@@ -94,5 +44,32 @@ func (settings *Provider) readPrivateInternetAccess(r reader) (err error) {
 		}
 	}
 
+	return settings.ServerSelection.OpenVPN.readPrivateInternetAccess(r)
+}
+
+func (settings *OpenVPNSelection) readPrivateInternetAccess(r reader) (err error) {
+	settings.EncPreset, err = getPIAEncryptionPreset(r)
+	if err != nil {
+		return err
+	}
+
+	settings.CustomPort, err = readPortOrZero(r.env, "PORT")
+	if err != nil {
+		return fmt.Errorf("environment variable PORT: %w", err)
+	}
+
 	return nil
 }
+
+func getPIAEncryptionPreset(r reader) (encryptionPreset string, err error) {
+	encryptionPreset, err = r.env.Inside("PIA_ENCRYPTION",
+		[]string{constants.PIAEncryptionPresetNone, constants.PIAEncryptionPresetNormal, constants.PIAEncryptionPresetStrong},
+		params.RetroKeys([]string{"ENCRYPTION"}, r.onRetroActive),
+		params.Default(constants.PIACertificateStrong),
+	)
+	if err != nil {
+		return "", fmt.Errorf("environment variable PIA_ENCRYPTION: %w", err)
+	}
+
+	return encryptionPreset, nil
+}

internal/configuration/privatevpn.go

@@ -6,49 +6,30 @@ import (
 	"github.com/qdm12/gluetun/internal/constants"
 )
 
-func (settings *Provider) privatevpnLines() (lines []string) {
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readPrivatevpn(r reader) (err error) {
 	settings.Name = constants.Privatevpn
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetPrivatevpn()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.PrivatevpnCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.PrivatevpnCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PrivatevpnCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PrivatevpnCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PrivatevpnHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.PrivatevpnHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	return nil
+	return settings.ServerSelection.OpenVPN.readProtocolAndPort(r.env)
 }

internal/configuration/protonvpn.go

@@ -7,73 +7,37 @@ import (
 	"github.com/qdm12/golibs/params"
 )
 
-func (settings *Provider) protonvpnLines() (lines []string) {
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Names) > 0 {
-		lines = append(lines, lastIndent+"Names: "+commaJoin(settings.ServerSelection.Names))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	if settings.ServerSelection.FreeOnly {
-		lines = append(lines, lastIndent+"Free only: yes")
-	}
-
-	return lines
-}
-
 func (settings *Provider) readProtonvpn(r reader) (err error) {
 	settings.Name = constants.Protonvpn
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetProtonvpn()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.CustomPort, err = readPortOrZero(r.env, "PORT")
-	if err != nil {
-		return fmt.Errorf("environment variable PORT: %w", err)
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.ProtonvpnCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.ProtonvpnCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.ProtonvpnRegionChoices())
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.ProtonvpnRegionChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable REGION: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.ProtonvpnCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.ProtonvpnCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Names, err = r.env.CSVInside("SERVER_NAME", constants.ProtonvpnNameChoices())
+	settings.ServerSelection.Names, err = r.env.CSVInside("SERVER_NAME", constants.ProtonvpnNameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_NAME: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.ProtonvpnHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.ProtonvpnHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
@@ -83,5 +47,5 @@ func (settings *Provider) readProtonvpn(r reader) (err error) {
 		return fmt.Errorf("environment variable FREE_ONLY: %w", err)
 	}
 
-	return nil
+	return settings.ServerSelection.OpenVPN.readProtocolAndPort(r.env)
 }

internal/configuration/provider.go

@@ -1,6 +1,7 @@
 package configuration
 
 import (
+	"errors"
 	"fmt"
 	"net"
 	"strings"
@@ -11,81 +12,116 @@ import (
 
 // Provider contains settings specific to a VPN provider.
 type Provider struct {
-	Name               string             `json:"name"`
-	ServerSelection    ServerSelection    `json:"server_selection"`
-	ExtraConfigOptions ExtraConfigOptions `json:"extra_config"`
-	PortForwarding     PortForwarding     `json:"port_forwarding"`
+	Name            string          `json:"name"`
+	ServerSelection ServerSelection `json:"server_selection"`
+	PortForwarding  PortForwarding  `json:"port_forwarding"`
 }
 
 func (settings *Provider) lines() (lines []string) {
+	if settings.Name == "" { // custom OpenVPN configuration
+		return nil
+	}
+
 	lines = append(lines, lastIndent+strings.Title(settings.Name)+" settings:")
 
-	selection := settings.ServerSelection
-
-	lines = append(lines, indent+lastIndent+"Network protocol: "+protoToString(selection.TCP))
-
-	if selection.TargetIP != nil {
-		lines = append(lines, indent+lastIndent+"Target IP address: "+selection.TargetIP.String())
-	}
-
-	var providerLines []string
-	switch strings.ToLower(settings.Name) {
-	case "cyberghost":
-		providerLines = settings.cyberghostLines()
-	case "fastestvpn":
-		providerLines = settings.fastestvpnLines()
-	case "hidemyass":
-		providerLines = settings.hideMyAssLines()
-	case "ipvanish":
-		providerLines = settings.ipvanishLines()
-	case "ivpn":
-		providerLines = settings.ivpnLines()
-	case "mullvad":
-		providerLines = settings.mullvadLines()
-	case "nordvpn":
-		providerLines = settings.nordvpnLines()
-	case "privado":
-		providerLines = settings.privadoLines()
-	case "privatevpn":
-		providerLines = settings.privatevpnLines()
-	case "private internet access":
-		providerLines = settings.privateinternetaccessLines()
-	case "protonvpn":
-		providerLines = settings.protonvpnLines()
-	case "purevpn":
-		providerLines = settings.purevpnLines()
-	case "surfshark":
-		providerLines = settings.surfsharkLines()
-	case "torguard":
-		providerLines = settings.torguardLines()
-	case strings.ToLower(constants.VPNUnlimited):
-		providerLines = settings.vpnUnlimitedLines()
-	case "vyprvpn":
-		providerLines = settings.vyprvpnLines()
-	case "windscribe":
-		providerLines = settings.windscribeLines()
-	default:
-		panic(`Missing lines method for provider "` +
-			settings.Name + `"! Please create a Github issue.`)
-	}
-
-	for _, line := range providerLines {
+	for _, line := range settings.ServerSelection.toLines() {
 		lines = append(lines, indent+line)
 	}
 
+	if settings.PortForwarding.Enabled { // PIA
+		lines = append(lines, indent+lastIndent+"Port forwarding:")
+		for _, line := range settings.PortForwarding.lines() {
+			lines = append(lines, indent+indent+line)
+		}
+	}
+
 	return lines
 }
 
-func commaJoin(slice []string) string {
-	return strings.Join(slice, ", ")
+var (
+	ErrInvalidVPNProvider = errors.New("invalid VPN provider")
+)
+
+func (settings *Provider) read(r reader, vpnType string) error {
+	err := settings.readVPNServiceProvider(r, vpnType)
+	if err != nil {
+		return err
+	}
+
+	switch settings.Name {
+	case constants.Cyberghost:
+		err = settings.readCyberghost(r)
+	case constants.Fastestvpn:
+		err = settings.readFastestvpn(r)
+	case constants.HideMyAss:
+		err = settings.readHideMyAss(r)
+	case constants.Ipvanish:
+		err = settings.readIpvanish(r)
+	case constants.Ivpn:
+		err = settings.readIvpn(r)
+	case constants.Mullvad:
+		err = settings.readMullvad(r)
+	case constants.Nordvpn:
+		err = settings.readNordvpn(r)
+	case constants.Privado:
+		err = settings.readPrivado(r)
+	case constants.PrivateInternetAccess:
+		err = settings.readPrivateInternetAccess(r)
+	case constants.Privatevpn:
+		err = settings.readPrivatevpn(r)
+	case constants.Protonvpn:
+		err = settings.readProtonvpn(r)
+	case constants.Purevpn:
+		err = settings.readPurevpn(r)
+	case constants.Surfshark:
+		err = settings.readSurfshark(r)
+	case constants.Torguard:
+		err = settings.readTorguard(r)
+	case constants.VPNUnlimited:
+		err = settings.readVPNUnlimited(r)
+	case constants.Vyprvpn:
+		err = settings.readVyprvpn(r)
+	case constants.Windscribe:
+		err = settings.readWindscribe(r)
+	default:
+		return fmt.Errorf("%w: %s", ErrInvalidVPNProvider, settings.Name)
+	}
+	if err != nil {
+		return err
+	}
+
+	settings.ServerSelection.VPN = vpnType
+	return nil
 }
 
-func readProtocol(env params.Env) (tcp bool, err error) {
-	protocol, err := env.Inside("PROTOCOL", []string{constants.TCP, constants.UDP}, params.Default(constants.UDP))
-	if err != nil {
-		return false, fmt.Errorf("environment variable PROTOCOL: %w", err)
+func (settings *Provider) readVPNServiceProvider(r reader, vpnType string) (err error) {
+	var allowedVPNServiceProviders []string
+	switch vpnType {
+	case constants.OpenVPN:
+		allowedVPNServiceProviders = []string{
+			"cyberghost", "fastestvpn", "hidemyass", "ipvanish", "ivpn", "mullvad", "nordvpn",
+			"privado", "pia", "private internet access", "privatevpn", "protonvpn",
+			"purevpn", "surfshark", "torguard", constants.VPNUnlimited, "vyprvpn", "windscribe"}
+	case constants.Wireguard:
+		allowedVPNServiceProviders = []string{constants.Mullvad, constants.Windscribe,
+			constants.Ivpn}
 	}
-	return protocol == constants.TCP, nil
+
+	vpnsp, err := r.env.Inside("VPNSP", allowedVPNServiceProviders,
+		params.Default("private internet access"))
+	if err != nil {
+		return fmt.Errorf("environment variable VPNSP: %w", err)
+	}
+	if vpnsp == "pia" { // retro compatibility
+		vpnsp = "private internet access"
+	}
+	settings.Name = vpnsp
+
+	return nil
+}
+
+func commaJoin(slice []string) string {
+	return strings.Join(slice, ", ")
 }
 
 func protoToString(tcp bool) string {
@@ -95,7 +131,7 @@ func protoToString(tcp bool) string {
 	return constants.UDP
 }
 
-func readTargetIP(env params.Env) (targetIP net.IP, err error) {
+func readTargetIP(env params.Interface) (targetIP net.IP, err error) {
 	targetIP, err = readIP(env, "OPENVPN_TARGET_IP")
 	if err != nil {
 		return nil, fmt.Errorf("environment variable OPENVPN_TARGET_IP: %w", err)
@@ -103,7 +139,7 @@ func readTargetIP(env params.Env) (targetIP net.IP, err error) {
 	return targetIP, nil
 }
 
-func readCustomPort(env params.Env, tcp bool,
+func readOpenVPNCustomPort(env params.Interface, tcp bool,
 	allowedTCP, allowedUDP []uint16) (port uint16, err error) {
 	port, err = readPortOrZero(env, "PORT")
 	if err != nil {
@@ -118,12 +154,48 @@ func readCustomPort(env params.Env, tcp bool,
 				return port, nil
 			}
 		}
-		return 0, fmt.Errorf("environment variable PORT: %w: port %d for TCP protocol", ErrInvalidPort, port)
+		return 0, fmt.Errorf(
+			"environment variable PORT: %w: port %d for TCP protocol, can only be one of %s",
+			ErrInvalidPort, port, portsToString(allowedTCP))
 	}
 	for i := range allowedUDP {
 		if allowedUDP[i] == port {
 			return port, nil
 		}
 	}
-	return 0, fmt.Errorf("environment variable PORT: %w: port %d for UDP protocol", ErrInvalidPort, port)
+	return 0, fmt.Errorf(
+		"environment variable PORT: %w: port %d for UDP protocol, can only be one of %s",
+		ErrInvalidPort, port, portsToString(allowedUDP))
+}
+
+// note: set allowed to an empty slice to allow all valid ports
+func readWireguardCustomPort(env params.Interface, allowed []uint16) (port uint16, err error) {
+	port, err = readPortOrZero(env, "WIREGUARD_PORT")
+	if err != nil {
+		return 0, fmt.Errorf("environment variable WIREGUARD_PORT: %w", err)
+	} else if port == 0 {
+		return 0, nil
+	}
+
+	if len(allowed) == 0 {
+		return port, nil
+	}
+
+	for i := range allowed {
+		if allowed[i] == port {
+			return port, nil
+		}
+	}
+
+	return 0, fmt.Errorf(
+		"environment variable WIREGUARD_PORT: %w: port %d, can only be one of %s",
+		ErrInvalidPort, port, portsToString(allowed))
+}
+
+func portsToString(ports []uint16) string {
+	slice := make([]string, len(ports))
+	for i := range ports {
+		slice[i] = fmt.Sprint(ports[i])
+	}
+	return strings.Join(slice, ", ")
 }

internal/configuration/provider_test.go

@@ -24,42 +24,41 @@ func Test_Provider_lines(t *testing.T) {
 			settings: Provider{
 				Name: constants.Cyberghost,
 				ServerSelection: ServerSelection{
+					VPN:     constants.OpenVPN,
 					Groups:  []string{"group"},
 					Regions: []string{"a", "El country"},
 				},
-				ExtraConfigOptions: ExtraConfigOptions{
-					ClientKey:         "a",
-					ClientCertificate: "a",
-				},
 			},
 			lines: []string{
 				"|--Cyberghost settings:",
-				"   |--Network protocol: udp",
 				"   |--Server groups: group",
 				"   |--Regions: a, El country",
-				"   |--Client key is set",
-				"   |--Client certificate is set",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"fastestvpn": {
 			settings: Provider{
 				Name: constants.Fastestvpn,
 				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
 					Hostnames: []string{"a", "b"},
 					Countries: []string{"c", "d"},
 				},
 			},
 			lines: []string{
 				"|--Fastestvpn settings:",
-				"   |--Network protocol: udp",
-				"   |--Hostnames: a, b",
 				"   |--Countries: c, d",
+				"   |--Hostnames: a, b",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"hidemyass": {
 			settings: Provider{
 				Name: constants.HideMyAss,
 				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
 					Countries: []string{"a", "b"},
 					Cities:    []string{"c", "d"},
 					Hostnames: []string{"e", "f"},
@@ -67,16 +66,18 @@ func Test_Provider_lines(t *testing.T) {
 			},
 			lines: []string{
 				"|--Hidemyass settings:",
-				"   |--Network protocol: udp",
 				"   |--Countries: a, b",
 				"   |--Cities: c, d",
 				"   |--Hostnames: e, f",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"ipvanish": {
 			settings: Provider{
 				Name: constants.Ipvanish,
 				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
 					Countries: []string{"a", "b"},
 					Cities:    []string{"c", "d"},
 					Hostnames: []string{"e", "f"},
@@ -84,16 +85,18 @@ func Test_Provider_lines(t *testing.T) {
 			},
 			lines: []string{
 				"|--Ipvanish settings:",
-				"   |--Network protocol: udp",
 				"   |--Countries: a, b",
 				"   |--Cities: c, d",
 				"   |--Hostnames: e, f",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"ivpn": {
 			settings: Provider{
 				Name: constants.Ivpn,
 				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
 					Countries: []string{"a", "b"},
 					Cities:    []string{"c", "d"},
 					Hostnames: []string{"e", "f"},
@@ -101,67 +104,73 @@ func Test_Provider_lines(t *testing.T) {
 			},
 			lines: []string{
 				"|--Ivpn settings:",
-				"   |--Network protocol: udp",
 				"   |--Countries: a, b",
 				"   |--Cities: c, d",
 				"   |--Hostnames: e, f",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"mullvad": {
 			settings: Provider{
 				Name: constants.Mullvad,
 				ServerSelection: ServerSelection{
-					Countries:  []string{"a", "b"},
-					Cities:     []string{"c", "d"},
-					ISPs:       []string{"e", "f"},
-					CustomPort: 1,
-				},
-				ExtraConfigOptions: ExtraConfigOptions{
-					OpenVPNIPv6: true,
+					VPN:       constants.OpenVPN,
+					Countries: []string{"a", "b"},
+					Cities:    []string{"c", "d"},
+					ISPs:      []string{"e", "f"},
+					OpenVPN: OpenVPNSelection{
+						CustomPort: 1,
+					},
 				},
 			},
 			lines: []string{
 				"|--Mullvad settings:",
-				"   |--Network protocol: udp",
 				"   |--Countries: a, b",
 				"   |--Cities: c, d",
 				"   |--ISPs: e, f",
-				"   |--Custom port: 1",
-				"   |--IPv6: enabled",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
+				"      |--Custom port: 1",
 			},
 		},
 		"nordvpn": {
 			settings: Provider{
 				Name: constants.Nordvpn,
 				ServerSelection: ServerSelection{
+					VPN:     constants.OpenVPN,
 					Regions: []string{"a", "b"},
 					Numbers: []uint16{1, 2},
 				},
 			},
 			lines: []string{
 				"|--Nordvpn settings:",
-				"   |--Network protocol: udp",
 				"   |--Regions: a, b",
 				"   |--Numbers: 1, 2",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"privado": {
 			settings: Provider{
 				Name: constants.Privado,
 				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
 					Hostnames: []string{"a", "b"},
 				},
 			},
 			lines: []string{
 				"|--Privado settings:",
-				"   |--Network protocol: udp",
 				"   |--Hostnames: a, b",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"privatevpn": {
 			settings: Provider{
 				Name: constants.Privatevpn,
 				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
 					Hostnames: []string{"a", "b"},
 					Countries: []string{"c", "d"},
 					Cities:    []string{"e", "f"},
@@ -169,16 +178,18 @@ func Test_Provider_lines(t *testing.T) {
 			},
 			lines: []string{
 				"|--Privatevpn settings:",
-				"   |--Network protocol: udp",
 				"   |--Countries: c, d",
 				"   |--Cities: e, f",
 				"   |--Hostnames: a, b",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"protonvpn": {
 			settings: Provider{
 				Name: constants.Protonvpn,
 				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
 					Countries: []string{"a", "b"},
 					Regions:   []string{"c", "d"},
 					Cities:    []string{"e", "f"},
@@ -188,21 +199,24 @@ func Test_Provider_lines(t *testing.T) {
 			},
 			lines: []string{
 				"|--Protonvpn settings:",
-				"   |--Network protocol: udp",
 				"   |--Countries: a, b",
 				"   |--Regions: c, d",
 				"   |--Cities: e, f",
-				"   |--Names: g, h",
 				"   |--Hostnames: i, j",
+				"   |--Names: g, h",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"private internet access": {
 			settings: Provider{
 				Name: constants.PrivateInternetAccess,
 				ServerSelection: ServerSelection{
-					Regions:          []string{"a", "b"},
-					EncryptionPreset: constants.PIAEncryptionPresetStrong,
-					CustomPort:       1,
+					VPN:     constants.OpenVPN,
+					Regions: []string{"a", "b"},
+					OpenVPN: OpenVPNSelection{
+						CustomPort: 1,
+					},
 				},
 				PortForwarding: PortForwarding{
 					Enabled:  true,
@@ -211,10 +225,10 @@ func Test_Provider_lines(t *testing.T) {
 			},
 			lines: []string{
 				"|--Private Internet Access settings:",
-				"   |--Network protocol: udp",
 				"   |--Regions: a, b",
-				"   |--Encryption preset: strong",
-				"   |--Custom port: 1",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
+				"      |--Custom port: 1",
 				"   |--Port forwarding:",
 				"      |--File path: /here",
 			},
@@ -223,6 +237,7 @@ func Test_Provider_lines(t *testing.T) {
 			settings: Provider{
 				Name: constants.Purevpn,
 				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
 					Regions:   []string{"a", "b"},
 					Countries: []string{"c", "d"},
 					Cities:    []string{"e", "f"},
@@ -230,29 +245,33 @@ func Test_Provider_lines(t *testing.T) {
 			},
 			lines: []string{
 				"|--Purevpn settings:",
-				"   |--Network protocol: udp",
-				"   |--Regions: a, b",
 				"   |--Countries: c, d",
+				"   |--Regions: a, b",
 				"   |--Cities: e, f",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"surfshark": {
 			settings: Provider{
 				Name: constants.Surfshark,
 				ServerSelection: ServerSelection{
+					VPN:     constants.OpenVPN,
 					Regions: []string{"a", "b"},
 				},
 			},
 			lines: []string{
 				"|--Surfshark settings:",
-				"   |--Network protocol: udp",
 				"   |--Regions: a, b",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"torguard": {
 			settings: Provider{
 				Name: constants.Torguard,
 				ServerSelection: ServerSelection{
+					VPN:       constants.OpenVPN,
 					Countries: []string{"a", "b"},
 					Cities:    []string{"c", "d"},
 					Hostnames: []string{"e"},
@@ -260,67 +279,72 @@ func Test_Provider_lines(t *testing.T) {
 			},
 			lines: []string{
 				"|--Torguard settings:",
-				"   |--Network protocol: udp",
 				"   |--Countries: a, b",
 				"   |--Cities: c, d",
 				"   |--Hostnames: e",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		constants.VPNUnlimited: {
 			settings: Provider{
 				Name: constants.VPNUnlimited,
 				ServerSelection: ServerSelection{
+					VPN:        constants.OpenVPN,
 					Countries:  []string{"a", "b"},
 					Cities:     []string{"c", "d"},
 					Hostnames:  []string{"e", "f"},
 					FreeOnly:   true,
 					StreamOnly: true,
 				},
-				ExtraConfigOptions: ExtraConfigOptions{
-					ClientKey: "a",
-				},
 			},
 			lines: []string{
 				"|--Vpn Unlimited settings:",
-				"   |--Network protocol: udp",
 				"   |--Countries: a, b",
 				"   |--Cities: c, d",
-				"   |--Hostnames: e, f",
 				"   |--Free servers only",
 				"   |--Stream servers only",
-				"   |--Client key is set",
+				"   |--Hostnames: e, f",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"vyprvpn": {
 			settings: Provider{
 				Name: constants.Vyprvpn,
 				ServerSelection: ServerSelection{
+					VPN:     constants.OpenVPN,
 					Regions: []string{"a", "b"},
 				},
 			},
 			lines: []string{
 				"|--Vyprvpn settings:",
-				"   |--Network protocol: udp",
 				"   |--Regions: a, b",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
 			},
 		},
 		"windscribe": {
 			settings: Provider{
 				Name: constants.Windscribe,
 				ServerSelection: ServerSelection{
-					Regions:    []string{"a", "b"},
-					Cities:     []string{"c", "d"},
-					Hostnames:  []string{"e", "f"},
-					CustomPort: 1,
+					VPN:       constants.OpenVPN,
+					Regions:   []string{"a", "b"},
+					Cities:    []string{"c", "d"},
+					Hostnames: []string{"e", "f"},
+					OpenVPN: OpenVPNSelection{
+						CustomPort: 1,
+					},
 				},
 			},
 			lines: []string{
 				"|--Windscribe settings:",
-				"   |--Network protocol: udp",
 				"   |--Regions: a, b",
 				"   |--Cities: c, d",
 				"   |--Hostnames: e, f",
-				"   |--Custom port: 1",
+				"   |--OpenVPN selection:",
+				"      |--Protocol: udp",
+				"      |--Custom port: 1",
 			},
 		},
 	}
@@ -362,7 +386,7 @@ func Test_readProtocol(t *testing.T) {
 			t.Parallel()
 			ctrl := gomock.NewController(t)
 
-			env := mock_params.NewMockEnv(ctrl)
+			env := mock_params.NewMockInterface(ctrl)
 			env.EXPECT().
 				Inside("PROTOCOL", []string{"tcp", "udp"}, gomock.Any()).
 				Return(testCase.mockStr, testCase.mockErr)

internal/configuration/purevpn.go

@@ -6,58 +6,34 @@ import (
 	"github.com/qdm12/gluetun/internal/constants"
 )
 
-func (settings *Provider) purevpnLines() (lines []string) {
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readPurevpn(r reader) (err error) {
 	settings.Name = constants.Purevpn
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetPurevpn()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.PurevpnRegionChoices())
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.PurevpnRegionChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable REGION: %w", err)
 	}
 
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.PurevpnCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.PurevpnCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PurevpnCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.PurevpnCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PurevpnHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.PurevpnHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	return nil
+	return settings.ServerSelection.OpenVPN.readProtocolOnly(r.env)
 }

internal/configuration/reader.go

@@ -7,22 +7,26 @@ import (
 	"strconv"
 	"strings"
 
+	"github.com/qdm12/gluetun/internal/models"
 	"github.com/qdm12/golibs/logging"
 	"github.com/qdm12/golibs/params"
 	"github.com/qdm12/golibs/verification"
 )
 
 type reader struct {
-	env    params.Env
-	logger logging.Logger
-	regex  verification.Regex
+	servers models.AllServers
+	env     params.Interface
+	logger  logging.Logger
+	regex   verification.Regex
 }
 
-func newReader(env params.Env, logger logging.Logger) reader {
+func newReader(env params.Interface,
+	servers models.AllServers, logger logging.Logger) reader {
 	return reader{
-		env:    env,
-		logger: logger,
-		regex:  verification.NewRegex(),
+		servers: servers,
+		env:     env,
+		logger:  logger,
+		regex:   verification.NewRegex(),
 	}
 }
 
@@ -36,7 +40,7 @@ var (
 	ErrInvalidPort = errors.New("invalid port")
 )
 
-func readCSVPorts(env params.Env, key string) (ports []uint16, err error) {
+func readCSVPorts(env params.Interface, key string) (ports []uint16, err error) {
 	s, err := env.Get(key)
 	if err != nil {
 		return nil, err
@@ -63,7 +67,7 @@ var (
 	ErrInvalidIPNet = errors.New("invalid IP network")
 )
 
-func readCSVIPNets(env params.Env, key string, options ...params.OptionSetter) (
+func readCSVIPNets(env params.Interface, key string, options ...params.OptionSetter) (
 	ipNets []net.IPNet, err error) {
 	s, err := env.Get(key, options...)
 	if err != nil {
@@ -92,7 +96,7 @@ var (
 	ErrInvalidIP = errors.New("invalid IP address")
 )
 
-func readIP(env params.Env, key string) (ip net.IP, err error) {
+func readIP(env params.Interface, key string) (ip net.IP, err error) {
 	s, err := env.Get(key)
 	if s == "" {
 		return nil, nil
@@ -108,13 +112,13 @@ func readIP(env params.Env, key string) (ip net.IP, err error) {
 	return ip, nil
 }
 
-func readPortOrZero(env params.Env, key string) (port uint16, err error) {
-	s, err := env.Get(key)
+func readPortOrZero(env params.Interface, key string) (port uint16, err error) {
+	s, err := env.Get(key, params.Default("0"))
 	if err != nil {
 		return 0, err
 	}
 
-	if s == "" || s == "0" {
+	if s == "0" {
 		return 0, nil
 	}
 

internal/configuration/selection.go

@@ -1,12 +1,16 @@
 package configuration
 
 import (
+	"fmt"
 	"net"
+
+	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/golibs/params"
 )
 
 type ServerSelection struct { //nolint:maligned
 	// Common
-	TCP      bool   `json:"tcp"` // UDP if TCP is false
+	VPN      string `json:"vpn"` // note: this is required
 	TargetIP net.IP `json:"target_ip,omitempty"`
 	// TODO comments
 	// Cyberghost, PIA, Protonvpn, Surfshark, Windscribe, Vyprvpn, NordVPN
@@ -27,27 +31,133 @@ type ServerSelection struct { //nolint:maligned
 	ISPs  []string `json:"isps"`
 	Owned bool     `json:"owned"`
 
-	// Mullvad, Windscribe, PIA
-	CustomPort uint16 `json:"custom_port"`
-
 	// NordVPN
 	Numbers []uint16 `json:"numbers"`
 
-	// PIA
-	EncryptionPreset string `json:"encryption_preset"`
-
 	// ProtonVPN
 	FreeOnly bool `json:"free_only"`
 
 	// VPNUnlimited
 	StreamOnly bool `json:"stream_only"`
+
+	// Surfshark
+	MultiHopOnly bool `json:"multihop_only"`
+
+	OpenVPN   OpenVPNSelection   `json:"openvpn"`
+	Wireguard WireguardSelection `json:"wireguard"`
 }
 
-type ExtraConfigOptions struct {
-	ClientCertificate string `json:"-"`                 // Cyberghost
-	ClientKey         string `json:"-"`                 // Cyberghost, VPNUnlimited
-	EncryptionPreset  string `json:"encryption_preset"` // PIA
-	OpenVPNIPv6       bool   `json:"openvpn_ipv6"`      // Mullvad
+func (selection ServerSelection) toLines() (lines []string) {
+	if selection.TargetIP != nil {
+		lines = append(lines, lastIndent+"Target IP address: "+selection.TargetIP.String())
+	}
+
+	if len(selection.Groups) > 0 {
+		lines = append(lines, lastIndent+"Server groups: "+commaJoin(selection.Groups))
+	}
+
+	if len(selection.Countries) > 0 {
+		lines = append(lines, lastIndent+"Countries: "+commaJoin(selection.Countries))
+	}
+
+	if len(selection.Regions) > 0 {
+		lines = append(lines, lastIndent+"Regions: "+commaJoin(selection.Regions))
+	}
+
+	if len(selection.Cities) > 0 {
+		lines = append(lines, lastIndent+"Cities: "+commaJoin(selection.Cities))
+	}
+
+	if len(selection.ISPs) > 0 {
+		lines = append(lines, lastIndent+"ISPs: "+commaJoin(selection.ISPs))
+	}
+
+	if selection.FreeOnly {
+		lines = append(lines, lastIndent+"Free servers only")
+	}
+
+	if selection.StreamOnly {
+		lines = append(lines, lastIndent+"Stream servers only")
+	}
+
+	if len(selection.Hostnames) > 0 {
+		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(selection.Hostnames))
+	}
+
+	if len(selection.Names) > 0 {
+		lines = append(lines, lastIndent+"Names: "+commaJoin(selection.Names))
+	}
+
+	if len(selection.Numbers) > 0 {
+		numbersString := make([]string, len(selection.Numbers))
+		for i, numberUint16 := range selection.Numbers {
+			numbersString[i] = fmt.Sprint(numberUint16)
+		}
+		lines = append(lines, lastIndent+"Numbers: "+commaJoin(numbersString))
+	}
+
+	if selection.VPN == constants.OpenVPN {
+		lines = append(lines, selection.OpenVPN.lines()...)
+	} else { // wireguard
+		lines = append(lines, selection.Wireguard.lines()...)
+	}
+
+	return lines
+}
+
+type OpenVPNSelection struct {
+	TCP        bool   `json:"tcp"`               // UDP if TCP is false
+	CustomPort uint16 `json:"custom_port"`       // HideMyAss, Mullvad, PIA, ProtonVPN, Windscribe
+	EncPreset  string `json:"encryption_preset"` // PIA - needed to get the port number
+}
+
+func (settings *OpenVPNSelection) lines() (lines []string) {
+	lines = append(lines, lastIndent+"OpenVPN selection:")
+
+	lines = append(lines, indent+lastIndent+"Protocol: "+protoToString(settings.TCP))
+
+	if settings.CustomPort != 0 {
+		lines = append(lines, indent+lastIndent+"Custom port: "+fmt.Sprint(settings.CustomPort))
+	}
+
+	if settings.EncPreset != "" {
+		lines = append(lines, indent+lastIndent+"PIA encryption preset: "+settings.EncPreset)
+	}
+
+	return lines
+}
+
+func (settings *OpenVPNSelection) readProtocolOnly(env params.Interface) (err error) {
+	settings.TCP, err = readProtocol(env)
+	return err
+}
+
+func (settings *OpenVPNSelection) readProtocolAndPort(env params.Interface) (err error) {
+	settings.TCP, err = readProtocol(env)
+	if err != nil {
+		return err
+	}
+
+	settings.CustomPort, err = readPortOrZero(env, "PORT")
+	if err != nil {
+		return fmt.Errorf("environment variable PORT: %w", err)
+	}
+
+	return nil
+}
+
+type WireguardSelection struct {
+	CustomPort uint16 `json:"custom_port"` // Mullvad
+}
+
+func (settings *WireguardSelection) lines() (lines []string) {
+	lines = append(lines, lastIndent+"Wireguard selection:")
+
+	if settings.CustomPort != 0 {
+		lines = append(lines, indent+lastIndent+"Custom port: "+fmt.Sprint(settings.CustomPort))
+	}
+
+	return lines
 }
 
 // PortForwarding contains settings for port forwarding.

internal/configuration/settings.go

@@ -5,13 +5,14 @@ import (
 	"fmt"
 	"strings"
 
+	"github.com/qdm12/gluetun/internal/models"
 	"github.com/qdm12/golibs/logging"
 	"github.com/qdm12/golibs/params"
 )
 
 // Settings contains all settings for the program to run.
 type Settings struct {
-	OpenVPN            OpenVPN
+	VPN                VPN
 	System             System
 	DNS                DNS
 	Firewall           Firewall
@@ -22,6 +23,7 @@ type Settings struct {
 	VersionInformation bool
 	ControlServer      ControlServer
 	Health             Health
+	Log                Log
 }
 
 func (settings *Settings) String() string {
@@ -30,9 +32,10 @@ func (settings *Settings) String() string {
 
 func (settings *Settings) lines() (lines []string) {
 	lines = append(lines, "Settings summary below:")
-	lines = append(lines, settings.OpenVPN.lines()...)
+	lines = append(lines, settings.VPN.lines()...)
 	lines = append(lines, settings.DNS.lines()...)
 	lines = append(lines, settings.Firewall.lines()...)
+	lines = append(lines, settings.Log.lines()...)
 	lines = append(lines, settings.System.lines()...)
 	lines = append(lines, settings.HTTPProxy.lines()...)
 	lines = append(lines, settings.ShadowSocks.lines()...)
@@ -47,7 +50,7 @@ func (settings *Settings) lines() (lines []string) {
 }
 
 var (
-	ErrOpenvpn       = errors.New("cannot read Openvpn settings")
+	ErrVPN           = errors.New("cannot read VPN settings")
 	ErrSystem        = errors.New("cannot read System settings")
 	ErrDNS           = errors.New("cannot read DNS settings")
 	ErrFirewall      = errors.New("cannot read firewall settings")
@@ -57,20 +60,22 @@ var (
 	ErrUpdater       = errors.New("cannot read Updater settings")
 	ErrPublicIP      = errors.New("cannot read Public IP getter settings")
 	ErrHealth        = errors.New("cannot read health settings")
+	ErrLog           = errors.New("cannot read log settings")
 )
 
 // Read obtains all configuration options for the program and returns an error as soon
 // as an error is encountered reading them.
-func (settings *Settings) Read(env params.Env, logger logging.Logger) (err error) {
-	r := newReader(env, logger)
+func (settings *Settings) Read(env params.Interface, servers models.AllServers,
+	logger logging.Logger) (err error) {
+	r := newReader(env, servers, logger)
 
 	settings.VersionInformation, err = r.env.OnOff("VERSION_INFORMATION", params.Default("on"))
 	if err != nil {
 		return fmt.Errorf("environment variable VERSION_INFORMATION: %w", err)
 	}
 
-	if err := settings.OpenVPN.read(r); err != nil {
-		return fmt.Errorf("%w: %s", ErrOpenvpn, err)
+	if err := settings.VPN.read(r); err != nil {
+		return fmt.Errorf("%w: %s", ErrVPN, err)
 	}
 
 	if err := settings.System.read(r); err != nil {
@@ -113,5 +118,9 @@ func (settings *Settings) Read(env params.Env, logger logging.Logger) (err error
 		return fmt.Errorf("%w: %s", ErrHealth, err)
 	}
 
+	if err := settings.Log.read(r.env); err != nil {
+		return fmt.Errorf("%w: %s", ErrLog, err)
+	}
+
 	return nil
 }

internal/configuration/settings_test.go

@@ -16,23 +16,35 @@ func Test_Settings_lines(t *testing.T) {
 	}{
 		"default settings": {
 			settings: Settings{
-				OpenVPN: OpenVPN{
-					Version: constants.Openvpn25,
+				VPN: VPN{
+					Type: constants.OpenVPN,
 					Provider: Provider{
 						Name: constants.Mullvad,
+						ServerSelection: ServerSelection{
+							VPN: constants.OpenVPN,
+						},
+					},
+					OpenVPN: OpenVPN{
+						Version:   constants.Openvpn25,
+						Interface: "tun",
 					},
 				},
 			},
 			lines: []string{
 				"Settings summary below:",
-				"|--OpenVPN:",
-				"   |--Version: 2.5",
-				"   |--Verbosity level: 0",
-				"   |--Provider:",
-				"      |--Mullvad settings:",
-				"         |--Network protocol: udp",
+				"|--VPN:",
+				"   |--Type: openvpn",
+				"   |--OpenVPN:",
+				"      |--Version: 2.5",
+				"      |--Verbosity level: 0",
+				"      |--Network interface: tun",
+				"   |--Mullvad settings:",
+				"      |--OpenVPN selection:",
+				"         |--Protocol: udp",
 				"|--DNS:",
 				"|--Firewall: disabled ⚠️",
+				"|--Log:",
+				"   |--Level: DEBUG",
 				"|--System:",
 				"   |--Process user ID: 0",
 				"   |--Process group ID: 0",

internal/configuration/shadowsocks.go

@@ -71,7 +71,7 @@ func (settings *ShadowSocks) read(r reader) (err error) {
 	return nil
 }
 
-func (settings *ShadowSocks) getAddress(env params.Env) (
+func (settings *ShadowSocks) getAddress(env params.Interface) (
 	warning string, err error) {
 	address, err := env.Get("SHADOWSOCKS_LISTENING_ADDRESS")
 	if err != nil {

internal/configuration/surfshark.go

@@ -2,44 +2,101 @@ package configuration
 
 import (
 	"fmt"
+	"strings"
 
 	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/gluetun/internal/models"
+	"github.com/qdm12/golibs/params"
 )
 
-func (settings *Provider) surfsharkLines() (lines []string) {
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readSurfshark(r reader) (err error) {
 	settings.Name = constants.Surfshark
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetSurfshark()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.SurfsharkRegionChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.SurfsharkCountryChoices(servers))
 	if err != nil {
-		return fmt.Errorf("environment variable REGION: %w", err)
+		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.SurfsharkHostnameChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.SurfsharkCityChoices(servers))
+	if err != nil {
+		return fmt.Errorf("environment variable CITY: %w", err)
+	}
+
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.SurfsharkHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	return nil
+	regionChoices := constants.SurfsharkRegionChoices(servers)
+	regionChoices = append(regionChoices, constants.SurfsharkRetroLocChoices(servers)...)
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", regionChoices)
+	if err != nil {
+		return fmt.Errorf("environment variable REGION: %w", err)
+	}
+
+	// Retro compatibility
+	// TODO remove in v4
+	settings.ServerSelection = surfsharkRetroRegion(settings.ServerSelection)
+
+	settings.ServerSelection.MultiHopOnly, err = r.env.YesNo("MULTIHOP_ONLY", params.Default("no"))
+	if err != nil {
+		return fmt.Errorf("environment variable MULTIHOP_ONLY: %w", err)
+	}
+
+	return settings.ServerSelection.OpenVPN.readProtocolOnly(r.env)
+}
+
+func surfsharkRetroRegion(selection ServerSelection) (
+	updatedSelection ServerSelection) {
+	locationData := constants.SurfsharkLocationData()
+
+	retroToLocation := make(map[string]models.SurfsharkLocationData, len(locationData))
+	for _, data := range locationData {
+		if data.RetroLoc == "" {
+			continue
+		}
+		retroToLocation[strings.ToLower(data.RetroLoc)] = data
+	}
+
+	for i, region := range selection.Regions {
+		location, ok := retroToLocation[region]
+		if !ok {
+			continue
+		}
+		selection.Regions[i] = strings.ToLower(location.Region)
+		selection.Countries = append(selection.Countries, strings.ToLower(location.Country))
+		selection.Cities = append(selection.Cities, strings.ToLower(location.City)) // even empty string
+		selection.Hostnames = append(selection.Hostnames, location.Hostname)
+	}
+
+	selection.Regions = dedupSlice(selection.Regions)
+	selection.Countries = dedupSlice(selection.Countries)
+	selection.Cities = dedupSlice(selection.Cities)
+	selection.Hostnames = dedupSlice(selection.Hostnames)
+
+	return selection
+}
+
+func dedupSlice(slice []string) (deduped []string) {
+	if slice == nil {
+		return nil
+	}
+
+	deduped = make([]string, 0, len(slice))
+	seen := make(map[string]struct{}, len(slice))
+	for _, s := range slice {
+		if _, ok := seen[s]; !ok {
+			seen[s] = struct{}{}
+			deduped = append(deduped, s)
+		}
+	}
+
+	return deduped
 }

internal/configuration/surfshark_test.go

@@ -0,0 +1,305 @@
+package configuration
+
+import (
+	"errors"
+	"net"
+	"testing"
+
+	"github.com/golang/mock/gomock"
+	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/gluetun/internal/models"
+	"github.com/qdm12/golibs/params/mock_params"
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_Provider_readSurfshark(t *testing.T) {
+	t.Parallel()
+
+	var errDummy = errors.New("dummy test error")
+
+	type stringCall struct {
+		call  bool
+		value string
+		err   error
+	}
+
+	type boolCall struct {
+		call  bool
+		value bool
+		err   error
+	}
+
+	type sliceStringCall struct {
+		call   bool
+		values []string
+		err    error
+	}
+
+	testCases := map[string]struct {
+		targetIP  stringCall
+		countries sliceStringCall
+		cities    sliceStringCall
+		hostnames sliceStringCall
+		regions   sliceStringCall
+		multiHop  boolCall
+		protocol  stringCall
+		settings  Provider
+		err       error
+	}{
+		"target IP error": {
+			targetIP: stringCall{call: true, value: "something", err: errDummy},
+			settings: Provider{
+				Name: constants.Surfshark,
+			},
+			err: errors.New("environment variable OPENVPN_TARGET_IP: dummy test error"),
+		},
+		"countries error": {
+			targetIP:  stringCall{call: true},
+			countries: sliceStringCall{call: true, err: errDummy},
+			settings: Provider{
+				Name: constants.Surfshark,
+			},
+			err: errors.New("environment variable COUNTRY: dummy test error"),
+		},
+		"cities error": {
+			targetIP:  stringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true, err: errDummy},
+			settings: Provider{
+				Name: constants.Surfshark,
+			},
+			err: errors.New("environment variable CITY: dummy test error"),
+		},
+		"hostnames error": {
+			targetIP:  stringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			hostnames: sliceStringCall{call: true, err: errDummy},
+			settings: Provider{
+				Name: constants.Surfshark,
+			},
+			err: errors.New("environment variable SERVER_HOSTNAME: dummy test error"),
+		},
+		"regions error": {
+			targetIP:  stringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			hostnames: sliceStringCall{call: true},
+			regions:   sliceStringCall{call: true, err: errDummy},
+			settings: Provider{
+				Name: constants.Surfshark,
+			},
+			err: errors.New("environment variable REGION: dummy test error"),
+		},
+		"multi hop error": {
+			targetIP:  stringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			hostnames: sliceStringCall{call: true},
+			regions:   sliceStringCall{call: true},
+			multiHop:  boolCall{call: true, err: errDummy},
+			settings: Provider{
+				Name: constants.Surfshark,
+			},
+			err: errors.New("environment variable MULTIHOP_ONLY: dummy test error"),
+		},
+		"openvpn protocol error": {
+			targetIP:  stringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			hostnames: sliceStringCall{call: true},
+			regions:   sliceStringCall{call: true},
+			multiHop:  boolCall{call: true},
+			protocol:  stringCall{call: true, err: errDummy},
+			settings: Provider{
+				Name: constants.Surfshark,
+			},
+			err: errors.New("environment variable PROTOCOL: dummy test error"),
+		},
+		"default settings": {
+			targetIP:  stringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			hostnames: sliceStringCall{call: true},
+			regions:   sliceStringCall{call: true},
+			multiHop:  boolCall{call: true},
+			protocol:  stringCall{call: true},
+			settings: Provider{
+				Name: constants.Surfshark,
+			},
+		},
+		"set settings": {
+			targetIP:  stringCall{call: true, value: "1.2.3.4"},
+			countries: sliceStringCall{call: true, values: []string{"A", "B"}},
+			cities:    sliceStringCall{call: true, values: []string{"C", "D"}},
+			regions: sliceStringCall{call: true, values: []string{
+				"E", "F", "netherlands amsterdam",
+			}}, // Netherlands Amsterdam is for retro compatibility test
+			multiHop:  boolCall{call: true},
+			hostnames: sliceStringCall{call: true, values: []string{"E", "F"}},
+			protocol:  stringCall{call: true, value: constants.TCP},
+			settings: Provider{
+				Name: constants.Surfshark,
+				ServerSelection: ServerSelection{
+					OpenVPN: OpenVPNSelection{
+						TCP: true,
+					},
+					TargetIP:  net.IPv4(1, 2, 3, 4),
+					Regions:   []string{"E", "F", "europe"},
+					Countries: []string{"A", "B", "netherlands"},
+					Cities:    []string{"C", "D", "amsterdam"},
+					Hostnames: []string{"E", "F", "nl-ams.prod.surfshark.com"},
+				},
+			},
+		},
+		"Netherlands Amsterdam": {
+			targetIP:  stringCall{call: true},
+			countries: sliceStringCall{call: true},
+			cities:    sliceStringCall{call: true},
+			regions:   sliceStringCall{call: true, values: []string{"netherlands amsterdam"}},
+			multiHop:  boolCall{call: true},
+			hostnames: sliceStringCall{call: true},
+			protocol:  stringCall{call: true},
+			settings: Provider{
+				Name: constants.Surfshark,
+				ServerSelection: ServerSelection{
+					Regions:   []string{"europe"},
+					Countries: []string{"netherlands"},
+					Cities:    []string{"amsterdam"},
+					Hostnames: []string{"nl-ams.prod.surfshark.com"},
+				},
+			},
+		},
+	}
+	for name, testCase := range testCases {
+		testCase := testCase
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+			ctrl := gomock.NewController(t)
+
+			env := mock_params.NewMockInterface(ctrl)
+
+			servers := []models.SurfsharkServer{{Hostname: "a"}}
+			allServers := models.AllServers{
+				Surfshark: models.SurfsharkServers{
+					Servers: servers,
+				},
+			}
+
+			if testCase.targetIP.call {
+				env.EXPECT().Get("OPENVPN_TARGET_IP").
+					Return(testCase.targetIP.value, testCase.targetIP.err)
+			}
+			if testCase.countries.call {
+				env.EXPECT().CSVInside("COUNTRY", constants.SurfsharkCountryChoices(servers)).
+					Return(testCase.countries.values, testCase.countries.err)
+			}
+			if testCase.cities.call {
+				env.EXPECT().CSVInside("CITY", constants.SurfsharkCityChoices(servers)).
+					Return(testCase.cities.values, testCase.cities.err)
+			}
+			if testCase.hostnames.call {
+				env.EXPECT().CSVInside("SERVER_HOSTNAME", constants.SurfsharkHostnameChoices(servers)).
+					Return(testCase.hostnames.values, testCase.hostnames.err)
+			}
+			if testCase.regions.call {
+				regionChoices := constants.SurfsharkRegionChoices(servers)
+				regionChoices = append(regionChoices, constants.SurfsharkRetroLocChoices(servers)...)
+				env.EXPECT().CSVInside("REGION", regionChoices).
+					Return(testCase.regions.values, testCase.regions.err)
+			}
+			if testCase.multiHop.call {
+				env.EXPECT().YesNo("MULTIHOP_ONLY", gomock.Any()).
+					Return(testCase.multiHop.value, testCase.multiHop.err)
+			}
+			if testCase.protocol.call {
+				env.EXPECT().Inside("PROTOCOL", []string{constants.TCP, constants.UDP}, gomock.Any()).
+					Return(testCase.protocol.value, testCase.protocol.err)
+			}
+
+			r := reader{
+				servers: allServers,
+				env:     env,
+			}
+
+			var settings Provider
+			err := settings.readSurfshark(r)
+
+			if testCase.err != nil {
+				require.Error(t, err)
+				assert.Equal(t, testCase.err.Error(), err.Error())
+			} else {
+				assert.NoError(t, err)
+			}
+
+			assert.Equal(t, testCase.settings, settings)
+		})
+	}
+}
+
+func Test_surfsharkRetroRegion(t *testing.T) {
+	t.Parallel()
+
+	testCases := map[string]struct {
+		original ServerSelection
+		modified ServerSelection
+	}{
+		"empty": {},
+		"1 retro region": {
+			original: ServerSelection{
+				Regions: []string{"australia adelaide"},
+			},
+			modified: ServerSelection{
+				Regions:   []string{"asia pacific"},
+				Countries: []string{"australia"},
+				Cities:    []string{"adelaide"},
+				Hostnames: []string{"au-adl.prod.surfshark.com"},
+			},
+		},
+		"2 overlapping retro regions": {
+			original: ServerSelection{
+				Regions: []string{"australia adelaide", "australia melbourne"},
+			},
+			modified: ServerSelection{
+				Regions:   []string{"asia pacific"},
+				Countries: []string{"australia"},
+				Cities:    []string{"adelaide", "melbourne"},
+				Hostnames: []string{"au-adl.prod.surfshark.com", "au-mel.prod.surfshark.com"},
+			},
+		},
+		"2 distinct retro regions": {
+			original: ServerSelection{
+				Regions: []string{"australia adelaide", "netherlands amsterdam"},
+			},
+			modified: ServerSelection{
+				Regions:   []string{"asia pacific", "europe"},
+				Countries: []string{"australia", "netherlands"},
+				Cities:    []string{"adelaide", "amsterdam"},
+				Hostnames: []string{"au-adl.prod.surfshark.com", "nl-ams.prod.surfshark.com"},
+			},
+		},
+		"retro region with existing region": {
+			// note TestRegion will be ignored in the filters downstream
+			original: ServerSelection{
+				Regions: []string{"TestRegion", "australia adelaide"},
+			},
+			modified: ServerSelection{
+				Regions:   []string{"TestRegion", "asia pacific"},
+				Countries: []string{"australia"},
+				Cities:    []string{"adelaide"},
+				Hostnames: []string{"au-adl.prod.surfshark.com"},
+			},
+		},
+	}
+	for name, testCase := range testCases {
+		testCase := testCase
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			selection := surfsharkRetroRegion(testCase.original)
+
+			assert.Equal(t, testCase.modified, selection)
+		})
+	}
+}

internal/configuration/torguard.go

@@ -6,49 +6,30 @@ import (
 	"github.com/qdm12/gluetun/internal/constants"
 )
 
-func (settings *Provider) torguardLines() (lines []string) {
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readTorguard(r reader) (err error) {
 	settings.Name = constants.Torguard
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetTorguard()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.TorguardCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.TorguardCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.TorguardCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.TorguardCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.TorguardHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.TorguardHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	return nil
+	return settings.ServerSelection.OpenVPN.readProtocolAndPort(r.env)
 }

internal/configuration/unbound.go

@@ -59,7 +59,7 @@ var (
 	ErrInvalidDNSOverTLSProvider = errors.New("invalid DNS over TLS provider")
 )
 
-func (settings *DNS) readUnboundProviders(env params.Env) (err error) {
+func (settings *DNS) readUnboundProviders(env params.Interface) (err error) {
 	s, err := env.Get("DOT_PROVIDERS", params.Default("cloudflare"))
 	if err != nil {
 		return fmt.Errorf("environment variable DOT_PROVIDERS: %w", err)

internal/configuration/unbound_test.go

@@ -60,7 +60,7 @@ func Test_DNS_readUnboundProviders(t *testing.T) {
 
 			ctrl := gomock.NewController(t)
 
-			env := mock_params.NewMockEnv(ctrl)
+			env := mock_params.NewMockInterface(ctrl)
 			env.EXPECT().Get("DOT_PROVIDERS", gomock.Any()).
 				Return(testCase.envValue, testCase.envErr)
 

internal/configuration/vpn.go

@@ -0,0 +1,97 @@
+package configuration
+
+import (
+	"errors"
+	"fmt"
+	"strings"
+
+	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/golibs/params"
+)
+
+type VPN struct {
+	Type      string    `json:"type"`
+	OpenVPN   OpenVPN   `json:"openvpn"`
+	Wireguard Wireguard `json:"wireguard"`
+	Provider  Provider  `json:"provider"`
+}
+
+func (settings *VPN) String() string {
+	return strings.Join(settings.lines(), "\n")
+}
+
+func (settings *VPN) lines() (lines []string) {
+	lines = append(lines, lastIndent+"VPN:")
+
+	lines = append(lines, indent+lastIndent+"Type: "+settings.Type)
+
+	var vpnLines []string
+	switch settings.Type {
+	case constants.OpenVPN:
+		vpnLines = settings.OpenVPN.lines()
+	case constants.Wireguard:
+		vpnLines = settings.Wireguard.lines()
+	}
+	for _, line := range vpnLines {
+		lines = append(lines, indent+line)
+	}
+
+	for _, line := range settings.Provider.lines() {
+		lines = append(lines, indent+line)
+	}
+
+	return lines
+}
+
+var (
+	errReadProviderSettings  = errors.New("cannot read provider settings")
+	errReadOpenVPNSettings   = errors.New("cannot read OpenVPN settings")
+	errReadWireguardSettings = errors.New("cannot read Wireguard settings")
+)
+
+func (settings *VPN) read(r reader) (err error) {
+	vpnType, err := r.env.Inside("VPN_TYPE",
+		[]string{constants.OpenVPN, constants.Wireguard},
+		params.Default(constants.OpenVPN))
+	if err != nil {
+		return fmt.Errorf("environment variable VPN_TYPE: %w", err)
+	}
+	settings.Type = vpnType
+
+	if !settings.isOpenVPNCustomConfig(r.env) {
+		if err := settings.Provider.read(r, vpnType); err != nil {
+			return fmt.Errorf("%w: %s", errReadProviderSettings, err)
+		}
+	}
+
+	switch settings.Type {
+	case constants.OpenVPN:
+		err = settings.OpenVPN.read(r, settings.Provider.Name)
+		if err != nil {
+			return fmt.Errorf("%w: %s", errReadOpenVPNSettings, err)
+		}
+	case constants.Wireguard:
+		err = settings.Wireguard.read(r)
+		if err != nil {
+			return fmt.Errorf("%w: %s", errReadWireguardSettings, err)
+		}
+	}
+
+	return nil
+}
+
+func (settings VPN) isOpenVPNCustomConfig(env params.Interface) (ok bool) {
+	if settings.Type != constants.OpenVPN {
+		return false
+	}
+	s, err := env.Get("OPENVPN_CUSTOM_CONFIG")
+	return err == nil && s != ""
+}
+
+func (settings VPN) VPNInterface() (intf string) {
+	if settings.Type == constants.Wireguard {
+		return settings.Wireguard.Interface
+	}
+	// OpenVPN
+	return settings.OpenVPN.Interface
+}

internal/configuration/vpnunlimited.go

@@ -7,68 +7,27 @@ import (
 	"github.com/qdm12/golibs/params"
 )
 
-func (settings *Provider) vpnUnlimitedLines() (lines []string) {
-	if len(settings.ServerSelection.Countries) > 0 {
-		lines = append(lines, lastIndent+"Countries: "+commaJoin(settings.ServerSelection.Countries))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	if settings.ServerSelection.FreeOnly {
-		lines = append(lines, lastIndent+"Free servers only")
-	}
-
-	if settings.ServerSelection.StreamOnly {
-		lines = append(lines, lastIndent+"Stream servers only")
-	}
-
-	if settings.ExtraConfigOptions.ClientKey != "" {
-		lines = append(lines, lastIndent+"Client key is set")
-	}
-
-	return lines
-}
-
 func (settings *Provider) readVPNUnlimited(r reader) (err error) {
 	settings.Name = constants.VPNUnlimited
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetVPNUnlimited()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ExtraConfigOptions.ClientKey, err = readClientKey(r)
-	if err != nil {
-		return err
-	}
-
-	settings.ExtraConfigOptions.ClientCertificate, err = readClientCertificate(r)
-	if err != nil {
-		return err
-	}
-
-	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.VPNUnlimitedCountryChoices())
+	settings.ServerSelection.Countries, err = r.env.CSVInside("COUNTRY", constants.VPNUnlimitedCountryChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable COUNTRY: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.VPNUnlimitedCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.VPNUnlimitedCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.VPNUnlimitedHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.VPNUnlimitedHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
@@ -83,5 +42,19 @@ func (settings *Provider) readVPNUnlimited(r reader) (err error) {
 		return fmt.Errorf("environment variable STREAM_ONLY: %w", err)
 	}
 
+	return settings.ServerSelection.OpenVPN.readProtocolOnly(r.env)
+}
+
+func (settings *OpenVPN) readVPNUnlimited(r reader) (err error) {
+	settings.ClientKey, err = readClientKey(r)
+	if err != nil {
+		return err
+	}
+
+	settings.ClientCrt, err = readClientCertificate(r)
+	if err != nil {
+		return err
+	}
+
 	return nil
 }

internal/configuration/vpnunlimited_test.go

@@ -1,42 +0,0 @@
-package configuration
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/assert"
-)
-
-func Test_Provider_vpnUnlimitedLines(t *testing.T) {
-	t.Parallel()
-
-	testCases := map[string]struct {
-		settings Provider
-		lines    []string
-	}{
-		"empty settings": {},
-		"full settings": {
-			settings: Provider{
-				ServerSelection: ServerSelection{
-					Countries: []string{"A", "B"},
-					Cities:    []string{"C", "D"},
-					Hostnames: []string{"E", "F"},
-				},
-			},
-			lines: []string{
-				"|--Countries: A, B",
-				"|--Cities: C, D",
-				"|--Hostnames: E, F",
-			},
-		},
-	}
-	for name, testCase := range testCases {
-		testCase := testCase
-		t.Run(name, func(t *testing.T) {
-			t.Parallel()
-
-			lines := testCase.settings.vpnUnlimitedLines()
-
-			assert.Equal(t, testCase.lines, lines)
-		})
-	}
-}

internal/configuration/vyprvpn.go

@@ -6,28 +6,16 @@ import (
 	"github.com/qdm12/gluetun/internal/constants"
 )
 
-func (settings *Provider) vyprvpnLines() (lines []string) {
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readVyprvpn(r reader) (err error) {
 	settings.Name = constants.Vyprvpn
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetVyprvpn()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.VyprvpnRegionChoices())
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.VyprvpnRegionChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable REGION: %w", err)
 	}

internal/configuration/windscribe.go

@@ -2,60 +2,51 @@ package configuration
 
 import (
 	"fmt"
-	"strconv"
 
 	"github.com/qdm12/gluetun/internal/constants"
+	"github.com/qdm12/golibs/params"
 )
 
-func (settings *Provider) windscribeLines() (lines []string) {
-	if len(settings.ServerSelection.Regions) > 0 {
-		lines = append(lines, lastIndent+"Regions: "+commaJoin(settings.ServerSelection.Regions))
-	}
-
-	if len(settings.ServerSelection.Cities) > 0 {
-		lines = append(lines, lastIndent+"Cities: "+commaJoin(settings.ServerSelection.Cities))
-	}
-
-	if len(settings.ServerSelection.Hostnames) > 0 {
-		lines = append(lines, lastIndent+"Hostnames: "+commaJoin(settings.ServerSelection.Hostnames))
-	}
-
-	if settings.ServerSelection.CustomPort > 0 {
-		lines = append(lines, lastIndent+"Custom port: "+strconv.Itoa(int(settings.ServerSelection.CustomPort)))
-	}
-
-	return lines
-}
-
 func (settings *Provider) readWindscribe(r reader) (err error) {
 	settings.Name = constants.Windscribe
-
-	settings.ServerSelection.TCP, err = readProtocol(r.env)
-	if err != nil {
-		return err
-	}
+	servers := r.servers.GetWindscribe()
 
 	settings.ServerSelection.TargetIP, err = readTargetIP(r.env)
 	if err != nil {
 		return err
 	}
 
-	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.WindscribeRegionChoices())
+	settings.ServerSelection.Regions, err = r.env.CSVInside("REGION", constants.WindscribeRegionChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable REGION: %w", err)
 	}
 
-	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.WindscribeCityChoices())
+	settings.ServerSelection.Cities, err = r.env.CSVInside("CITY", constants.WindscribeCityChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable CITY: %w", err)
 	}
 
-	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME", constants.WindscribeHostnameChoices())
+	settings.ServerSelection.Hostnames, err = r.env.CSVInside("SERVER_HOSTNAME",
+		constants.WindscribeHostnameChoices(servers))
 	if err != nil {
 		return fmt.Errorf("environment variable SERVER_HOSTNAME: %w", err)
 	}
 
-	settings.ServerSelection.CustomPort, err = readCustomPort(r.env, settings.ServerSelection.TCP,
+	err = settings.ServerSelection.OpenVPN.readWindscribe(r.env)
+	if err != nil {
+		return err
+	}
+
+	return settings.ServerSelection.Wireguard.readWindscribe(r.env)
+}
+
+func (settings *OpenVPNSelection) readWindscribe(env params.Interface) (err error) {
+	settings.TCP, err = readProtocol(env)
+	if err != nil {
+		return err
+	}
+
+	settings.CustomPort, err = readOpenVPNCustomPort(env, settings.TCP,
 		[]uint16{21, 22, 80, 123, 143, 443, 587, 1194, 3306, 8080, 54783},
 		[]uint16{53, 80, 123, 443, 1194, 54783})
 	if err != nil {
@@ -64,3 +55,13 @@ func (settings *Provider) readWindscribe(r reader) (err error) {
 
 	return nil
 }
+
+func (settings *WireguardSelection) readWindscribe(env params.Interface) (err error) {
+	settings.CustomPort, err = readWireguardCustomPort(env,
+		[]uint16{53, 80, 123, 443, 1194, 65142})
+	if err != nil {
+		return err
+	}
+
+	return nil
+}

internal/configuration/wireguard.go

@@ -0,0 +1,88 @@
+package configuration
+
+import (
+	"fmt"
+	"net"
+	"strings"
+
+	"github.com/qdm12/golibs/params"
+)
+
+// Wireguard contains settings to configure the Wireguard client.
+type Wireguard struct {
+	PrivateKey   string       `json:"privatekey"`
+	PreSharedKey string       `json:"presharedkey"`
+	Addresses    []*net.IPNet `json:"addresses"`
+	Interface    string       `json:"interface"`
+}
+
+func (settings *Wireguard) String() string {
+	return strings.Join(settings.lines(), "\n")
+}
+
+func (settings *Wireguard) lines() (lines []string) {
+	lines = append(lines, lastIndent+"Wireguard:")
+
+	lines = append(lines, indent+lastIndent+"Network interface: "+settings.Interface)
+
+	if settings.PrivateKey != "" {
+		lines = append(lines, indent+lastIndent+"Private key is set")
+	}
+
+	if settings.PreSharedKey != "" {
+		lines = append(lines, indent+lastIndent+"Pre-shared key is set")
+	}
+
+	if len(settings.Addresses) > 0 {
+		lines = append(lines, indent+lastIndent+"Addresses: ")
+		for _, address := range settings.Addresses {
+			lines = append(lines, indent+indent+lastIndent+address.String())
+		}
+	}
+
+	return lines
+}
+
+func (settings *Wireguard) read(r reader) (err error) {
+	settings.PrivateKey, err = r.env.Get("WIREGUARD_PRIVATE_KEY",
+		params.CaseSensitiveValue(), params.Unset(), params.Compulsory())
+	if err != nil {
+		return fmt.Errorf("environment variable WIREGUARD_PRIVATE_KEY: %w", err)
+	}
+
+	settings.PreSharedKey, err = r.env.Get("WIREGUARD_PRESHARED_KEY",
+		params.CaseSensitiveValue(), params.Unset())
+	if err != nil {
+		return fmt.Errorf("environment variable WIREGUARD_PRESHARED_KEY: %w", err)
+	}
+
+	err = settings.readAddresses(r.env)
+	if err != nil {
+		return err
+	}
+
+	settings.Interface, err = r.env.Get("WIREGUARD_INTERFACE", params.Default("wg0"))
+	if err != nil {
+		return fmt.Errorf("environment variable WIREGUARD_INTERFACE: %w", err)
+	}
+
+	return nil
+}
+
+func (settings *Wireguard) readAddresses(env params.Interface) (err error) {
+	addressStrings, err := env.CSV("WIREGUARD_ADDRESS", params.Compulsory())
+	if err != nil {
+		return fmt.Errorf("environment variable WIREGUARD_ADDRESS: %w", err)
+	}
+
+	for _, addressString := range addressStrings {
+		ip, ipNet, err := net.ParseCIDR(addressString)
+		if err != nil {
+			return fmt.Errorf("environment variable WIREGUARD_ADDRESS: address %s: %w", addressString, err)
+		}
+		ipNet.IP = ip
+		settings.Addresses = append(settings.Addresses, ipNet)
+	}
+
+	return nil
+}

internal/constants/cyberghost.go

@@ -11,8 +11,7 @@ const (
 	CyberghostCertificate = "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"
 )
 
-func CyberghostRegionChoices() (choices []string) {
-	servers := CyberghostServers()
+func CyberghostRegionChoices(servers []models.CyberghostServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Region
@@ -20,8 +19,7 @@ func CyberghostRegionChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func CyberghostGroupChoices() (choices []string) {
-	servers := CyberghostServers()
+func CyberghostGroupChoices(servers []models.CyberghostServer) (choices []string) {
 	uniqueChoices := map[string]struct{}{}
 	for _, server := range servers {
 		uniqueChoices[server.Group] = struct{}{}
@@ -38,19 +36,10 @@ func CyberghostGroupChoices() (choices []string) {
 	return sortable
 }
 
-func CyberghostHostnameChoices() (choices []string) {
-	servers := CyberghostServers()
+func CyberghostHostnameChoices(servers []models.CyberghostServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// CyberghostServers returns a slice with the server information for each
-// of the Cyberghost server.
-func CyberghostServers() (servers []models.CyberghostServer) {
-	servers = make([]models.CyberghostServer, len(allServers.Cyberghost.Servers))
-	copy(servers, allServers.Cyberghost.Servers)
-	return servers
-}

internal/constants/cyberghost_test.go

@@ -3,16 +3,29 @@ package constants
 import (
 	"testing"
 
+	"github.com/golang/mock/gomock"
+	"github.com/qdm12/gluetun/internal/storage"
+	"github.com/qdm12/golibs/logging/mock_logging"
 	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
 )
 
 func Test_CyberghostGroupChoices(t *testing.T) {
 	t.Parallel()
+	ctrl := gomock.NewController(t)
+
+	logger := mock_logging.NewMockLogger(ctrl)
+	logger.EXPECT().Info(gomock.Any())
+
+	storage, err := storage.New(logger, "")
+	require.NoError(t, err)
+
+	servers := storage.GetServers()
 
 	expected := []string{"Premium TCP Asia", "Premium TCP Europe",
 		"Premium TCP USA", "Premium UDP Asia", "Premium UDP Europe",
 		"Premium UDP USA"}
-	choices := CyberghostGroupChoices()
+	choices := CyberghostGroupChoices(servers.GetCyberghost())
 
 	assert.Equal(t, expected, choices)
 }

internal/constants/fastestvpn.go

@@ -10,8 +10,7 @@ const (
 	FastestvpnOpenvpnStaticKeyV1 = "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"
 )
 
-func FastestvpnCountriesChoices() (choices []string) {
-	servers := FastestvpnServers()
+func FastestvpnCountriesChoices(servers []models.FastestvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -19,18 +18,10 @@ func FastestvpnCountriesChoices() (choices []string) {
 	return choices
 }
 
-func FastestvpnHostnameChoices() (choices []string) {
-	servers := FastestvpnServers()
+func FastestvpnHostnameChoices(servers []models.FastestvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return choices
 }
-
-// FastestvpnServers returns the list of all VPN servers for FastestVPN.
-func FastestvpnServers() (servers []models.FastestvpnServer) {
-	servers = make([]models.FastestvpnServer, len(allServers.Fastestvpn.Servers))
-	copy(servers, allServers.Fastestvpn.Servers)
-	return servers
-}

internal/constants/hidemyass.go

@@ -11,8 +11,7 @@ const (
 	HideMyAssRSAPrivateKey = "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"
 )
 
-func HideMyAssCountryChoices() (choices []string) {
-	servers := HideMyAssServers()
+func HideMyAssCountryChoices(servers []models.HideMyAssServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -20,8 +19,7 @@ func HideMyAssCountryChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func HideMyAssCityChoices() (choices []string) {
-	servers := HideMyAssServers()
+func HideMyAssCityChoices(servers []models.HideMyAssServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -29,18 +27,10 @@ func HideMyAssCityChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func HideMyAssHostnameChoices() (choices []string) {
-	servers := HideMyAssServers()
+func HideMyAssHostnameChoices(servers []models.HideMyAssServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// HideMyAssServers returns a slice of all the server information for HideMyAss.
-func HideMyAssServers() (servers []models.HideMyAssServer) {
-	servers = make([]models.HideMyAssServer, len(allServers.HideMyAss.Servers))
-	copy(servers, allServers.HideMyAss.Servers)
-	return servers
-}

internal/constants/ipvanish.go

@@ -9,8 +9,7 @@ const (
 	IpvanishCA = "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"
 )
 
-func IpvanishCountryChoices() (choices []string) {
-	servers := IpvanishServers()
+func IpvanishCountryChoices(servers []models.IpvanishServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -18,8 +17,7 @@ func IpvanishCountryChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func IpvanishCityChoices() (choices []string) {
-	servers := IpvanishServers()
+func IpvanishCityChoices(servers []models.IpvanishServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -27,18 +25,10 @@ func IpvanishCityChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func IpvanishHostnameChoices() (choices []string) {
-	servers := IpvanishServers()
+func IpvanishHostnameChoices(servers []models.IpvanishServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// IpvanishServers returns a slice of all the server information for Ipvanish.
-func IpvanishServers() (servers []models.IpvanishServer) {
-	servers = make([]models.IpvanishServer, len(allServers.Ipvanish.Servers))
-	copy(servers, allServers.Ipvanish.Servers)
-	return servers
-}

internal/constants/ivpn.go

@@ -10,8 +10,7 @@ const (
 	IvpnOpenvpnStaticKeyV1 = "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"
 )
 
-func IvpnCountryChoices() (choices []string) {
-	servers := IvpnServers()
+func IvpnCountryChoices(servers []models.IvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -19,8 +18,7 @@ func IvpnCountryChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func IvpnCityChoices() (choices []string) {
-	servers := IvpnServers()
+func IvpnCityChoices(servers []models.IvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -28,18 +26,18 @@ func IvpnCityChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func IvpnHostnameChoices() (choices []string) {
-	servers := IvpnServers()
+func IvpnISPChoices(servers []models.IvpnServer) (choices []string) {
+	choices = make([]string, len(servers))
+	for i := range servers {
+		choices[i] = servers[i].ISP
+	}
+	return makeUnique(choices)
+}
+
+func IvpnHostnameChoices(servers []models.IvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// IvpnServers returns a slice of all the server information for Ivpn.
-func IvpnServers() (servers []models.IvpnServer) {
-	servers = make([]models.IvpnServer, len(allServers.Ivpn.Servers))
-	copy(servers, allServers.Ivpn.Servers)
-	return servers
-}

internal/constants/mullvad.go

@@ -9,8 +9,7 @@ const (
 	MullvadCertificate = "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"
 )
 
-func MullvadCountryChoices() (choices []string) {
-	servers := MullvadServers()
+func MullvadCountryChoices(servers []models.MullvadServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -18,8 +17,7 @@ func MullvadCountryChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func MullvadCityChoices() (choices []string) {
-	servers := MullvadServers()
+func MullvadCityChoices(servers []models.MullvadServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -27,8 +25,7 @@ func MullvadCityChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func MullvadHostnameChoices() (choices []string) {
-	servers := MullvadServers()
+func MullvadHostnameChoices(servers []models.MullvadServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
@@ -36,18 +33,10 @@ func MullvadHostnameChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func MullvadISPChoices() (choices []string) {
-	servers := MullvadServers()
+func MullvadISPChoices(servers []models.MullvadServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].ISP
 	}
 	return makeUnique(choices)
 }
-
-// MullvadServers returns a slice of all the server information for Mullvad.
-func MullvadServers() (servers []models.MullvadServer) {
-	servers = make([]models.MullvadServer, len(allServers.Mullvad.Servers))
-	copy(servers, allServers.Mullvad.Servers)
-	return servers
-}

internal/constants/nordvpn.go

@@ -10,8 +10,7 @@ const (
 	NordvpnOpenvpnStaticKeyV1 = "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"
 )
 
-func NordvpnRegionChoices() (choices []string) {
-	servers := NordvpnServers()
+func NordvpnRegionChoices(servers []models.NordvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Region
@@ -19,8 +18,7 @@ func NordvpnRegionChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func NordvpnHostnameChoices() (choices []string) {
-	servers := NordvpnServers()
+func NordvpnHostnameChoices(servers []models.NordvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
@@ -28,18 +26,10 @@ func NordvpnHostnameChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func NordvpnNameChoices() (choices []string) {
-	servers := NordvpnServers()
+func NordvpnNameChoices(servers []models.NordvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Name
 	}
 	return makeUnique(choices)
 }
-
-// NordvpnServers returns a slice of all the server information for Nordvpn.
-func NordvpnServers() (servers []models.NordvpnServer) {
-	servers = make([]models.NordvpnServer, len(allServers.Nordvpn.Servers))
-	copy(servers, allServers.Nordvpn.Servers)
-	return servers
-}

internal/constants/openvpn.go

@@ -1,10 +1,5 @@
 package constants
 
-const (
-	TUN = "tun0"
-	TAP = "tap0"
-)
-
 const (
 	AES128cbc = "aes-128-cbc"
 	AES256cbc = "aes-256-cbc"

internal/constants/pia.go

@@ -15,8 +15,7 @@ const (
 	PIACertificateStrong      = "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"
 )
 
-func PIAGeoChoices() (choices []string) {
-	servers := PIAServers()
+func PIAGeoChoices(servers []models.PIAServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Region
@@ -24,8 +23,7 @@ func PIAGeoChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func PIAHostnameChoices() (choices []string) {
-	servers := PIAServers()
+func PIAHostnameChoices(servers []models.PIAServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
@@ -33,8 +31,7 @@ func PIAHostnameChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func PIANameChoices() (choices []string) {
-	servers := PIAServers()
+func PIANameChoices(servers []models.PIAServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].ServerName
@@ -42,15 +39,8 @@ func PIANameChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-// PIAServers returns a slice of all the server information for PIA.
-func PIAServers() (servers []models.PIAServer) {
-	servers = make([]models.PIAServer, len(allServers.Pia.Servers))
-	copy(servers, allServers.Pia.Servers)
-	return servers
-}
-
-func PIAServerWhereName(serverName string) (server models.PIAServer) {
-	for _, server := range PIAServers() {
+func PIAServerWhereName(servers []models.PIAServer, serverName string) (server models.PIAServer) {
+	for _, server := range servers {
 		if server.ServerName == serverName {
 			return server
 		}

internal/constants/privado.go

@@ -1,16 +1,13 @@
 package constants
 
-import (
-	"github.com/qdm12/gluetun/internal/models"
-)
+import "github.com/qdm12/gluetun/internal/models"
 
 //nolint:lll
 const (
 	PrivadoCertificate = "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"
 )
 
-func PrivadoCountryChoices() (choices []string) {
-	servers := PrivadoServers()
+func PrivadoCountryChoices(servers []models.PrivadoServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -18,8 +15,7 @@ func PrivadoCountryChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func PrivadoRegionChoices() (choices []string) {
-	servers := PrivadoServers()
+func PrivadoRegionChoices(servers []models.PrivadoServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Region
@@ -27,8 +23,7 @@ func PrivadoRegionChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func PrivadoCityChoices() (choices []string) {
-	servers := PrivadoServers()
+func PrivadoCityChoices(servers []models.PrivadoServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -36,18 +31,10 @@ func PrivadoCityChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func PrivadoHostnameChoices() (choices []string) {
-	servers := PrivadoServers()
+func PrivadoHostnameChoices(servers []models.PrivadoServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// PrivadoServers returns a slice of all the Privado servers.
-func PrivadoServers() (servers []models.PrivadoServer) {
-	servers = make([]models.PrivadoServer, len(allServers.Privado.Servers))
-	copy(servers, allServers.Privado.Servers)
-	return servers
-}

internal/constants/privatevpn.go

@@ -1,8 +1,6 @@
 package constants
 
-import (
-	"github.com/qdm12/gluetun/internal/models"
-)
+import "github.com/qdm12/gluetun/internal/models"
 
 //nolint:lll
 const (
@@ -10,8 +8,7 @@ const (
 	PrivatevpnOpenvpnStaticKeyV1 = "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"
 )
 
-func PrivatevpnCountryChoices() (choices []string) {
-	servers := PrivatevpnServers()
+func PrivatevpnCountryChoices(servers []models.PrivatevpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -19,8 +16,7 @@ func PrivatevpnCountryChoices() (choices []string) {
 	return makeChoicesUnique(choices)
 }
 
-func PrivatevpnCityChoices() (choices []string) {
-	servers := PrivatevpnServers()
+func PrivatevpnCityChoices(servers []models.PrivatevpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -28,17 +24,10 @@ func PrivatevpnCityChoices() (choices []string) {
 	return makeChoicesUnique(choices)
 }
 
-func PrivatevpnHostnameChoices() (choices []string) {
-	servers := PrivatevpnServers()
+func PrivatevpnHostnameChoices(servers []models.PrivatevpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeChoicesUnique(choices)
 }
-
-func PrivatevpnServers() (servers []models.PrivatevpnServer) {
-	servers = make([]models.PrivatevpnServer, len(allServers.Privatevpn.Servers))
-	copy(servers, allServers.Privatevpn.Servers)
-	return servers
-}

internal/constants/protonvpn.go

@@ -1,8 +1,6 @@
 package constants
 
-import (
-	"github.com/qdm12/gluetun/internal/models"
-)
+import "github.com/qdm12/gluetun/internal/models"
 
 //nolint:lll
 const (
@@ -10,8 +8,7 @@ const (
 	ProtonvpnOpenvpnStaticKeyV1 = "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"
 )
 
-func ProtonvpnCountryChoices() (choices []string) {
-	servers := ProtonvpnServers()
+func ProtonvpnCountryChoices(servers []models.ProtonvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -19,8 +16,7 @@ func ProtonvpnCountryChoices() (choices []string) {
 	return makeChoicesUnique(choices)
 }
 
-func ProtonvpnRegionChoices() (choices []string) {
-	servers := ProtonvpnServers()
+func ProtonvpnRegionChoices(servers []models.ProtonvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Region
@@ -28,8 +24,7 @@ func ProtonvpnRegionChoices() (choices []string) {
 	return makeChoicesUnique(choices)
 }
 
-func ProtonvpnCityChoices() (choices []string) {
-	servers := ProtonvpnServers()
+func ProtonvpnCityChoices(servers []models.ProtonvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -37,8 +32,7 @@ func ProtonvpnCityChoices() (choices []string) {
 	return makeChoicesUnique(choices)
 }
 
-func ProtonvpnNameChoices() (choices []string) {
-	servers := ProtonvpnServers()
+func ProtonvpnNameChoices(servers []models.ProtonvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Name
@@ -46,18 +40,10 @@ func ProtonvpnNameChoices() (choices []string) {
 	return makeChoicesUnique(choices)
 }
 
-func ProtonvpnHostnameChoices() (choices []string) {
-	servers := ProtonvpnServers()
+func ProtonvpnHostnameChoices(servers []models.ProtonvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeChoicesUnique(choices)
 }
-
-// ProtonvpnServers returns a slice of all the server information for Protonvpn.
-func ProtonvpnServers() (servers []models.ProtonvpnServer) {
-	servers = make([]models.ProtonvpnServer, len(allServers.Protonvpn.Servers))
-	copy(servers, allServers.Protonvpn.Servers)
-	return servers
-}

internal/constants/purevpn.go

@@ -1,8 +1,6 @@
 package constants
 
-import (
-	"github.com/qdm12/gluetun/internal/models"
-)
+import "github.com/qdm12/gluetun/internal/models"
 
 //nolint:lll
 const (
@@ -12,8 +10,7 @@ const (
 	PurevpnOpenvpnStaticKeyV1   = "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"
 )
 
-func PurevpnRegionChoices() (choices []string) {
-	servers := PurevpnServers()
+func PurevpnRegionChoices(servers []models.PurevpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Region
@@ -21,8 +18,7 @@ func PurevpnRegionChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func PurevpnCountryChoices() (choices []string) {
-	servers := PurevpnServers()
+func PurevpnCountryChoices(servers []models.PurevpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -30,8 +26,7 @@ func PurevpnCountryChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func PurevpnCityChoices() (choices []string) {
-	servers := PurevpnServers()
+func PurevpnCityChoices(servers []models.PurevpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -39,18 +34,10 @@ func PurevpnCityChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func PurevpnHostnameChoices() (choices []string) {
-	servers := PurevpnServers()
+func PurevpnHostnameChoices(servers []models.PurevpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// PurevpnServers returns a slice of all the server information for Purevpn.
-func PurevpnServers() (servers []models.PurevpnServer) {
-	servers = make([]models.PurevpnServer, len(allServers.Purevpn.Servers))
-	copy(servers, allServers.Purevpn.Servers)
-	return servers
-}

internal/constants/servers.go

@@ -1,34 +0,0 @@
-package constants
-
-import (
-	"embed"
-	"encoding/json"
-	"sync"
-
-	"github.com/qdm12/gluetun/internal/models"
-)
-
-//go:embed servers.json
-var allServersEmbedFS embed.FS   //nolint:gochecknoglobals
-var allServers models.AllServers //nolint:gochecknoglobals
-var parseOnce sync.Once          //nolint:gochecknoglobals
-
-func init() { //nolint:gochecknoinits
-	// error returned covered by unit test
-	parseOnce.Do(func() { allServers, _ = parseAllServers() })
-}
-
-func parseAllServers() (allServers models.AllServers, err error) {
-	f, err := allServersEmbedFS.Open("servers.json")
-	if err != nil {
-		return allServers, err
-	}
-	decoder := json.NewDecoder(f)
-	err = decoder.Decode(&allServers)
-	return allServers, err
-}
-
-func GetAllServers() models.AllServers {
-	parseOnce.Do(func() { allServers, _ = parseAllServers() }) // init did not execute, used in tests
-	return allServers
-}

internal/constants/surfshark.go

@@ -10,8 +10,7 @@ const (
 	SurfsharkOpenvpnStaticKeyV1 = "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"
 )
 
-func SurfsharkRegionChoices() (choices []string) {
-	servers := SurfsharkServers()
+func SurfsharkRegionChoices(servers []models.SurfsharkServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Region
@@ -19,18 +18,211 @@ func SurfsharkRegionChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func SurfsharkHostnameChoices() (choices []string) {
-	servers := SurfsharkServers()
+func SurfsharkCountryChoices(servers []models.SurfsharkServer) (choices []string) {
+	choices = make([]string, len(servers))
+	for i := range servers {
+		choices[i] = servers[i].Country
+	}
+	return makeUnique(choices)
+}
+
+func SurfsharkCityChoices(servers []models.SurfsharkServer) (choices []string) {
+	choices = make([]string, len(servers))
+	for i := range servers {
+		choices[i] = servers[i].City
+	}
+	return makeUnique(choices)
+}
+
+// TODO remove in v4.
+func SurfsharkRetroLocChoices(servers []models.SurfsharkServer) (choices []string) {
+	locationData := SurfsharkLocationData()
+	choices = make([]string, len(locationData))
+	for i := range locationData {
+		choices[i] = locationData[i].RetroLoc
+	}
+	return makeUnique(choices)
+}
+
+func SurfsharkHostToLocation() (hostToLocation map[string]models.SurfsharkLocationData) {
+	locationData := SurfsharkLocationData()
+	hostToLocation = make(map[string]models.SurfsharkLocationData, len(locationData))
+	for _, data := range locationData {
+		hostToLocation[data.Hostname] = data
+	}
+	return hostToLocation
+}
+
+// TODO remove retroRegion and servers from API in v4.
+func SurfsharkLocationData() (data []models.SurfsharkLocationData) {
+	//nolint:lll
+	return []models.SurfsharkLocationData{
+		{Region: "Asia Pacific", Country: "Australia", City: "Adelaide", RetroLoc: "Australia Adelaide", Hostname: "au-adl.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Australia", City: "Brisbane", RetroLoc: "Australia Brisbane", Hostname: "au-bne.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Australia", City: "Melbourne", RetroLoc: "Australia Melbourne", Hostname: "au-mel.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Australia", City: "Perth", RetroLoc: "Australia Perth", Hostname: "au-per.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Australia", City: "Sydney", RetroLoc: "Australia Sydney", Hostname: "au-syd.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Azerbaijan", City: "Baku", RetroLoc: "Azerbaijan", Hostname: "az-bak.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Hong Kong", City: "Hong Kong", RetroLoc: "Hong Kong", Hostname: "hk-hkg.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "India", City: "Chennai", RetroLoc: "India Chennai", Hostname: "in-chn.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "India", City: "Indore", RetroLoc: "India Indore", Hostname: "in-idr.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "India", City: "Mumbai", RetroLoc: "India Mumbai", Hostname: "in-mum.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Indonesia", City: "Jakarta", RetroLoc: "Indonesia", Hostname: "id-jak.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st001", Hostname: "jp-tok-st001.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st002", Hostname: "jp-tok-st002.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st003", Hostname: "jp-tok-st003.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st004", Hostname: "jp-tok-st004.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st005", Hostname: "jp-tok-st005.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st006", Hostname: "jp-tok-st006.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st007", Hostname: "jp-tok-st007.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st008", Hostname: "jp-tok-st008.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st009", Hostname: "jp-tok-st009.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st010", Hostname: "jp-tok-st010.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st011", Hostname: "jp-tok-st011.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st012", Hostname: "jp-tok-st012.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo st013", Hostname: "jp-tok-st013.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Japan", City: "Tokyo", RetroLoc: "Japan Tokyo", Hostname: "jp-tok.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Kazakhstan", City: "Oral", RetroLoc: "Kazakhstan", Hostname: "kz-ura.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Malaysia", City: "Kuala Lumpur", RetroLoc: "Malaysia", Hostname: "my-kul.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "New Zealand", City: "Auckland", RetroLoc: "New Zealand", Hostname: "nz-akl.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Philippines", City: "Manila", RetroLoc: "Philippines", Hostname: "ph-mnl.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Singapore Hong Kong", City: "Hong Kong", RetroLoc: "Singapore Hong Kong", Hostname: "sg-hk.prod.surfshark.com", MultiHop: true},
+		{Region: "Asia Pacific", Country: "Singapore in", City: "", RetroLoc: "Singapore in", Hostname: "sg-in.prod.surfshark.com", MultiHop: true},
+		{Region: "Asia Pacific", Country: "Singapore", City: "Singapore", RetroLoc: "Singapore mp001", Hostname: "sg-sng-mp001.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Singapore", City: "Singapore", RetroLoc: "Singapore st001", Hostname: "sg-sng-st001.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Singapore", City: "Singapore", RetroLoc: "Singapore st002", Hostname: "sg-sng-st002.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Singapore", City: "Singapore", RetroLoc: "Singapore st003", Hostname: "sg-sng-st003.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Singapore", City: "Singapore", RetroLoc: "Singapore st004", Hostname: "sg-sng-st004.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Singapore", City: "Singapore", RetroLoc: "Singapore", Hostname: "sg-sng.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "South Korea", City: "Seoul", RetroLoc: "Korea", Hostname: "kr-seo.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Taiwan", City: "Taichung City", RetroLoc: "Taiwan", Hostname: "tw-tai.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Thailand", City: "Bangkok", RetroLoc: "Thailand", Hostname: "th-bkk.prod.surfshark.com", MultiHop: false},
+		{Region: "Asia Pacific", Country: "Vietnam", City: "Ho Chi Minh City", RetroLoc: "Vietnam", Hostname: "vn-hcm.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Albania", City: "Tirana", RetroLoc: "Albania", Hostname: "al-tia.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Austria", City: "Vienna", RetroLoc: "Austria", Hostname: "at-vie.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Belgium", City: "Brussels", RetroLoc: "Belgium", Hostname: "be-bru.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Bosnia and Herzegovina", City: "Sarajevo", RetroLoc: "Bosnia and Herzegovina", Hostname: "ba-sjj.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Bulgaria", City: "Sofia", RetroLoc: "Bulgaria", Hostname: "bg-sof.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Croatia", City: "Zagreb", RetroLoc: "Croatia", Hostname: "hr-zag.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Cyprus", City: "Nicosia", RetroLoc: "Cyprus", Hostname: "cy-nic.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Czech Republic", City: "Prague", RetroLoc: "Czech Republic", Hostname: "cz-prg.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Denmark", City: "Copenhagen", RetroLoc: "Denmark", Hostname: "dk-cph.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Estonia", City: "Tallinn", RetroLoc: "Estonia", Hostname: "ee-tll.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Finland", City: "Helsinki", RetroLoc: "Finland", Hostname: "fi-hel.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "France Sweden", City: "", RetroLoc: "France Sweden", Hostname: "fr-se.prod.surfshark.com", MultiHop: true},
+		{Region: "Europe", Country: "France", City: "Bordeaux", RetroLoc: "France Bordeaux", Hostname: "fr-bod.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "France", City: "Marseille", RetroLoc: "France Marseilles", Hostname: "fr-mrs.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "France", City: "Paris", RetroLoc: "France Paris", Hostname: "fr-par.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Germany Singapour", City: "", RetroLoc: "Germany Singapour", Hostname: "de-sg.prod.surfshark.com", MultiHop: true},
+		{Region: "Europe", Country: "Germany UK", City: "", RetroLoc: "Germany UK", Hostname: "de-uk.prod.surfshark.com", MultiHop: true},
+		{Region: "Europe", Country: "Germany", City: "Berlin", RetroLoc: "Germany Berlin", Hostname: "de-ber.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Germany", City: "Frankfurt am Main", RetroLoc: "Germany Frankfurt am Main st001", Hostname: "de-fra-st001.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Germany", City: "Frankfurt am Main", RetroLoc: "Germany Frankfurt am Main st002", Hostname: "de-fra-st002.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Germany", City: "Frankfurt am Main", RetroLoc: "Germany Frankfurt am Main st003", Hostname: "de-fra-st003.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Germany", City: "Frankfurt am Main", RetroLoc: "Germany Frankfurt am Main st004", Hostname: "de-fra-st004.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Germany", City: "Frankfurt am Main", RetroLoc: "Germany Frankfurt am Main st005", Hostname: "de-fra-st005.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Germany", City: "Frankfurt am Main", RetroLoc: "Germany Frankfurt am Main", Hostname: "de-fra.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Germany", City: "Frankfurt am Main", RetroLoc: "Germany Frankfurt mp001", Hostname: "de-fra-mp001.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Greece", City: "Athens", RetroLoc: "Greece", Hostname: "gr-ath.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Hungary", City: "Budapest", RetroLoc: "Hungary", Hostname: "hu-bud.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Iceland", City: "Reykjavik", RetroLoc: "Iceland", Hostname: "is-rkv.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "India UK", City: "", RetroLoc: "India UK", Hostname: "in-uk.prod.surfshark.com", MultiHop: true},
+		{Region: "Europe", Country: "Ireland", City: "Dublin", RetroLoc: "Ireland", Hostname: "ie-dub.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Italy", City: "Milan", RetroLoc: "Italy Milan", Hostname: "it-mil.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Italy", City: "Rome", RetroLoc: "Italy Rome", Hostname: "it-rom.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Latvia", City: "Riga", RetroLoc: "Latvia", Hostname: "lv-rig.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Luxembourg", City: "Luxembourg", RetroLoc: "Luxembourg", Hostname: "lu-ste.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Moldova", City: "Chisinau", RetroLoc: "Moldova", Hostname: "md-chi.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Netherlands", City: "Amsterdam", RetroLoc: "Netherlands Amsterdam mp001", Hostname: "nl-ams-mp001.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Netherlands", City: "Amsterdam", RetroLoc: "Netherlands Amsterdam st001", Hostname: "nl-ams-st001.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Netherlands", City: "Amsterdam", RetroLoc: "Netherlands Amsterdam", Hostname: "nl-ams.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "North Macedonia", City: "Skopje", RetroLoc: "North Macedonia", Hostname: "mk-skp.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Norway", City: "Oslo", RetroLoc: "Norway", Hostname: "no-osl.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Poland", City: "Gdansk", RetroLoc: "Poland Gdansk", Hostname: "pl-gdn.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Poland", City: "Warsaw", RetroLoc: "Poland Warsaw", Hostname: "pl-waw.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Portugal", City: "Lisbon", RetroLoc: "Portugal Lisbon", Hostname: "pt-lis.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Portugal", City: "Porto", RetroLoc: "Portugal Porto", Hostname: "pt-opo.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Romania", City: "Bucharest", RetroLoc: "Romania", Hostname: "ro-buc.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Russia", City: "Moscow", RetroLoc: "Russia Moscow", Hostname: "ru-mos.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Serbia", City: "Belgrade", RetroLoc: "Serbia", Hostname: "rs-beg.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Singapore Netherlands", City: "", RetroLoc: "Singapore Netherlands", Hostname: "sg-nl.prod.surfshark.com", MultiHop: true},
+		{Region: "Europe", Country: "Slovakia", City: "Bratislava", RetroLoc: "Slovekia", Hostname: "sk-bts.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Slovenia", City: "Ljubljana", RetroLoc: "Slovenia", Hostname: "si-lju.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Spain", City: "Barcelona", RetroLoc: "Spain Barcelona", Hostname: "es-bcn.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Spain", City: "Madrid", RetroLoc: "Spain Madrid", Hostname: "es-mad.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Spain", City: "Valencia", RetroLoc: "Spain Valencia", Hostname: "es-vlc.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Sweden", City: "Stockholm", RetroLoc: "Sweden", Hostname: "se-sto.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Switzerland", City: "Zurich", RetroLoc: "Switzerland", Hostname: "ch-zur.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "Turkey", City: "Istanbul", RetroLoc: "Turkey Istanbul", Hostname: "tr-ist.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "UK France", City: "", RetroLoc: "UK France", Hostname: "uk-fr.prod.surfshark.com", MultiHop: true},
+		{Region: "Europe", Country: "UK Germany", City: "", RetroLoc: "UK Germany", Hostname: "uk-de.prod.surfshark.com", MultiHop: true},
+		{Region: "Europe", Country: "Ukraine", City: "Kyiv", RetroLoc: "Ukraine", Hostname: "ua-iev.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "United Kingdom", City: "Glasgow", RetroLoc: "UK Glasgow", Hostname: "uk-gla.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "United Kingdom", City: "London", RetroLoc: "UK London mp001", Hostname: "uk-lon-mp001.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "United Kingdom", City: "London", RetroLoc: "UK London st001", Hostname: "uk-lon-st001.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "United Kingdom", City: "London", RetroLoc: "UK London st002", Hostname: "uk-lon-st002.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "United Kingdom", City: "London", RetroLoc: "UK London st003", Hostname: "uk-lon-st003.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "United Kingdom", City: "London", RetroLoc: "UK London st004", Hostname: "uk-lon-st004.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "United Kingdom", City: "London", RetroLoc: "UK London st005", Hostname: "uk-lon-st005.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "United Kingdom", City: "London", RetroLoc: "UK London", Hostname: "uk-lon.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "United Kingdom", City: "Manchester", RetroLoc: "UK Manchester", Hostname: "uk-man.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "US Netherlands", City: "", RetroLoc: "US Netherlands", Hostname: "us-nl.prod.surfshark.com", MultiHop: false},
+		{Region: "Europe", Country: "US Portugal", City: "", RetroLoc: "US Portugal", Hostname: "us-pt.prod.surfshark.com", MultiHop: true},
+		{Region: "Middle East and Africa", Country: "Israel", City: "Tel Aviv", RetroLoc: "Israel", Hostname: "il-tlv.prod.surfshark.com", MultiHop: false},
+		{Region: "Middle East and Africa", Country: "Nigeria", City: "Lagos", RetroLoc: "Nigeria", Hostname: "ng-lag.prod.surfshark.com", MultiHop: false},
+		{Region: "Middle East and Africa", Country: "South Africa", City: "Johannesburg", RetroLoc: "South Africa", Hostname: "za-jnb.prod.surfshark.com", MultiHop: false},
+		{Region: "Middle East and Africa", Country: "United Arab Emirates", City: "Dubai", RetroLoc: "United Arab Emirates", Hostname: "ae-dub.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Argentina", City: "Buenos Aires", RetroLoc: "Argentina Buenos Aires", Hostname: "ar-bua.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Australia US", City: "", RetroLoc: "Australia US", Hostname: "au-us.prod.surfshark.com", MultiHop: true},
+		{Region: "The Americas", Country: "Brazil", City: "Sao Paulo", RetroLoc: "Brazil", Hostname: "br-sao.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Canada US", City: "", RetroLoc: "Canada US", Hostname: "ca-us.prod.surfshark.com", MultiHop: true},
+		{Region: "The Americas", Country: "Canada", City: "Montreal", RetroLoc: "Canada Montreal", Hostname: "ca-mon.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Canada", City: "Toronto", RetroLoc: "Canada Toronto mp001", Hostname: "ca-tor-mp001.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Canada", City: "Toronto", RetroLoc: "Canada Toronto", Hostname: "ca-tor.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Canada", City: "Vancouver", RetroLoc: "Canada Vancouver", Hostname: "ca-van.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Chile", City: "Santiago", RetroLoc: "Chile", Hostname: "cl-san.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Colombia", City: "Bogota", RetroLoc: "Colombia", Hostname: "co-bog.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Costa Rica", City: "San Jose", RetroLoc: "Costa Rica", Hostname: "cr-sjn.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Mexico", City: "Mexico City", RetroLoc: "Mexico City Mexico", Hostname: "mx-mex.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "Netherlands US", City: "", RetroLoc: "Netherlands US", Hostname: "nl-us.prod.surfshark.com", MultiHop: true},
+		{Region: "The Americas", Country: "United States", City: "Atlanta", RetroLoc: "US Atlanta", Hostname: "us-atl.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Bend", RetroLoc: "US Bend", Hostname: "us-bdn.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Boston", RetroLoc: "US Boston", Hostname: "us-bos.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Buffalo", RetroLoc: "US Buffalo", Hostname: "us-buf.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Charlotte", RetroLoc: "US Charlotte", Hostname: "us-clt.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Chicago", RetroLoc: "US Chicago", Hostname: "us-chi.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Dallas", RetroLoc: "US Dallas", Hostname: "us-dal.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Denver", RetroLoc: "US Denver", Hostname: "us-den.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Detroit", RetroLoc: "US Gahanna", Hostname: "us-dtw.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Houston", RetroLoc: "US Houston", Hostname: "us-hou.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Kansas City", RetroLoc: "US Kansas City", Hostname: "us-kan.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Las Vegas", RetroLoc: "US Las Vegas", Hostname: "us-las.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Latham", RetroLoc: "US Latham", Hostname: "us-ltm.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Los Angeles", RetroLoc: "US Los Angeles", Hostname: "us-lax.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Manassas", RetroLoc: "US Maryland", Hostname: "us-mnz.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Miami", RetroLoc: "US Miami", Hostname: "us-mia.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "New York", RetroLoc: "US New York City mp001", Hostname: "us-nyc-mp001.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "New York", RetroLoc: "US New York City st001", Hostname: "us-nyc-st001.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "New York", RetroLoc: "US New York City st002", Hostname: "us-nyc-st002.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "New York", RetroLoc: "US New York City st003", Hostname: "us-nyc-st003.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "New York", RetroLoc: "US New York City st004", Hostname: "us-nyc-st004.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "New York", RetroLoc: "US New York City st005", Hostname: "us-nyc-st005.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "New York", RetroLoc: "US New York City", Hostname: "us-nyc.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Orlando", RetroLoc: "US Orlando", Hostname: "us-orl.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Phoenix", RetroLoc: "US Phoenix", Hostname: "us-phx.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Salt Lake City", RetroLoc: "US Salt Lake City", Hostname: "us-slc.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "San Francisco", RetroLoc: "US San Francisco mp001", Hostname: "us-sfo-mp001.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "San Francisco", RetroLoc: "US San Francisco", Hostname: "us-sfo.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Seattle", RetroLoc: "US Seatle", Hostname: "us-sea.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "St. Louis", RetroLoc: "US Saint Louis", Hostname: "us-stl.prod.surfshark.com", MultiHop: false},
+		{Region: "The Americas", Country: "United States", City: "Tampa", RetroLoc: "US Tampa", Hostname: "us-tpa.prod.surfshark.com", MultiHop: false},
+	}
+}
+
+func SurfsharkHostnameChoices(servers []models.SurfsharkServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// SurfsharkServers returns a slice of all the server information for Surfshark.
-func SurfsharkServers() (servers []models.SurfsharkServer) {
-	servers = make([]models.SurfsharkServer, len(allServers.Surfshark.Servers))
-	copy(servers, allServers.Surfshark.Servers)
-	return servers
-}

internal/constants/torguard.go

@@ -10,8 +10,7 @@ const (
 	TorguardOpenvpnStaticKeyV1 = "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"
 )
 
-func TorguardCountryChoices() (choices []string) {
-	servers := TorguardServers()
+func TorguardCountryChoices(servers []models.TorguardServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -19,8 +18,7 @@ func TorguardCountryChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func TorguardCityChoices() (choices []string) {
-	servers := TorguardServers()
+func TorguardCityChoices(servers []models.TorguardServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -28,18 +26,10 @@ func TorguardCityChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func TorguardHostnameChoices() (choices []string) {
-	servers := TorguardServers()
+func TorguardHostnameChoices(servers []models.TorguardServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// TorguardServers returns a slice of all the server information for Torguard.
-func TorguardServers() (servers []models.TorguardServer) {
-	servers = make([]models.TorguardServer, len(allServers.Torguard.Servers))
-	copy(servers, allServers.Torguard.Servers)
-	return servers
-}

internal/constants/vpn.go

@@ -1,5 +1,10 @@
 package constants
 
+const (
+	OpenVPN   = "openvpn"
+	Wireguard = "wireguard"
+)
+
 const (
 	// Cyberghost is a VPN provider.
 	Cyberghost = "cyberghost"

internal/constants/vpnunlimited.go

@@ -9,8 +9,7 @@ const (
 	VPNUnlimitedCertificateAuthority = "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"
 )
 
-func VPNUnlimitedCountryChoices() (choices []string) {
-	servers := VPNUnlimitedServers()
+func VPNUnlimitedCountryChoices(servers []models.VPNUnlimitedServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Country
@@ -18,8 +17,7 @@ func VPNUnlimitedCountryChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func VPNUnlimitedCityChoices() (choices []string) {
-	servers := VPNUnlimitedServers()
+func VPNUnlimitedCityChoices(servers []models.VPNUnlimitedServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -27,18 +25,10 @@ func VPNUnlimitedCityChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func VPNUnlimitedHostnameChoices() (choices []string) {
-	servers := VPNUnlimitedServers()
+func VPNUnlimitedHostnameChoices(servers []models.VPNUnlimitedServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// VPNUnlimitedServers returns a slice of all the server information for VPNUnlimited.
-func VPNUnlimitedServers() (servers []models.VPNUnlimitedServer) {
-	servers = make([]models.VPNUnlimitedServer, len(allServers.VPNUnlimited.Servers))
-	copy(servers, allServers.VPNUnlimited.Servers)
-	return servers
-}

internal/constants/vyprvpn.go

@@ -9,18 +9,10 @@ const (
 	VyprvpnCertificate = "MIIGDjCCA/agAwIBAgIJAL2ON5xbane/MA0GCSqGSIb3DQEBDQUAMIGTMQswCQYDVQQGEwJDSDEQMA4GA1UECAwHTHVjZXJuZTEPMA0GA1UEBwwGTWVnZ2VuMRkwFwYDVQQKDBBHb2xkZW4gRnJvZyBHbWJIMSEwHwYDVQQDDBhHb2xkZW4gRnJvZyBHbWJIIFJvb3QgQ0ExIzAhBgkqhkiG9w0BCQEWFGFkbWluQGdvbGRlbmZyb2cuY29tMB4XDTE5MTAxNzIwMTQxMFoXDTM5MTAxMjIwMTQxMFowgZMxCzAJBgNVBAYTAkNIMRAwDgYDVQQIDAdMdWNlcm5lMQ8wDQYDVQQHDAZNZWdnZW4xGTAXBgNVBAoMEEdvbGRlbiBGcm9nIEdtYkgxITAfBgNVBAMMGEdvbGRlbiBGcm9nIEdtYkggUm9vdCBDQTEjMCEGCSqGSIb3DQEJARYUYWRtaW5AZ29sZGVuZnJvZy5jb20wggIiMA0GCSqGSIb3DQEBAQUAA4ICDwAwggIKAoICAQCtuddaZrpWZ+nUuJpG+ohTquO3XZtq6d4U0E2oiPeIiwm+WWLY49G+GNJb5aVrlrBojaykCAc2sU6NeUlpg3zuqrDqLcz7PAE4OdNiOdrLBF1o9ZHrcITDZN304eAY5nbyHx5V6x/QoDVCi4g+5OVTA+tZjpcl4wRIpgknWznO73IKCJ6YckpLn1BsFrVCb2ehHYZLg7Js58FzMySIxBmtkuPeHQXL61DFHh3cTFcMxqJjzh7EGsWRyXfbAaBGYnT+TZwzpLXXt8oBGpNXG8YBDrPdK0A+lzMnJ4nS0rgHDSRF0brx+QYk/6CgM510uFzB7zytw9UTD3/5TvKlCUmTGGgI84DbJ3DEvjxbgiQnJXCUZKKYSHwrK79Y4Qn+lXu4Bu0ZTCJBje0GUVMTPAvBCeDvzSe0iRcVSNMJVM68d4kD1PpSY/zWfCz5hiOjHWuXinaoZ0JJqRF8kGbJsbDlDYDtVvh/Cd4aWN6Q/2XLpszBsG5i8sdkS37nzkdlRwNEIZwsKfcXwdTOlDinR1LUG68LmzJAwfNE47xbrZUsdGGfG+HSPsrqFFiLGe7Y4e2+a7vGdSY9qR9PAzyx0ijCCrYzZDIsb2dwjLctUx6a3LNV8cpfhKX+s6tfMldGufPI7byHT1Ybf0NtMS1d1RjD6IbqedXQdCKtaw68kTX//wIDAQABo2MwYTAdBgNVHQ4EFgQU2EbQvBd1r/EADr2jCPMXsH7zEXEwHwYDVR0jBBgwFoAU2EbQvBd1r/EADr2jCPMXsH7zEXEwDwYDVR0TAQH/BAUwAwEB/zAOBgNVHQ8BAf8EBAMCAYYwDQYJKoZIhvcNAQENBQADggIBAAViCPieIronV+9asjZyo5oSZSNWUkWRYdezjezsf49+fwT12iRgnkSEQeoj5caqcOfNm/eRpN4G7jhhCcxy9RGF+GurIlZ4v0mChZbx1jcxqr9/3/Z2TqvHALyWngBYDv6pv1iWcd9a4+QL9kj1Tlp8vUDIcHMtDQkEHnkhC+MnjyrdsdNE5wjlLljjFR2Qy5a6/kWwZ1JQVYof1J1EzY6mU7YLMHOdjfmeci5i0vg8+9kGMsc/7Wm69L1BeqpDB3ZEAgmOtda2jwOevJ4sABmRoSThFp4DeMcxb62HW1zZCCpgzWv/33+pZdPvnZHSz7RGoxH4Ln7eBf3oo2PMlu7wCsid3HUdgkRf2Og1RJIrFfEjb7jga1JbKX2Qo/FH3txzdUimKiDRv3ccFmEOqjndUG6hP+7/EsI43oCPYOvZR+u5GdOkhYrDGZlvjXeJ1CpQxTR/EX+Vt7F8YG+i2LkO7lhPLb+LzgPAxVPCcEMHruuUlE1BYxxzRMOW4X4kjHvJjZGISxa9lgTY3e0mnoQNQVBHKfzI2vGLwvcrFcCIrVxeEbj2dryfByyhZlrNPFbXyf7P4OSfk+fVh6Is1IF1wksfLY/6gWvcmXB8JwmKFDa9s5NfzXnzP3VMrNUWXN3G8Eee6qzKKTDsJ70OrgAx9j9a+dMLfe1vP5t6GQj5"
 )
 
-func VyprvpnRegionChoices() (choices []string) {
-	servers := VyprvpnServers()
+func VyprvpnRegionChoices(servers []models.VyprvpnServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Region
 	}
 	return makeUnique(choices)
 }
-
-// VyprvpnServers returns a slice of all the VyprVPN servers.
-func VyprvpnServers() (servers []models.VyprvpnServer) {
-	servers = make([]models.VyprvpnServer, len(allServers.Vyprvpn.Servers))
-	copy(servers, allServers.Vyprvpn.Servers)
-	return servers
-}

internal/constants/windscribe.go

@@ -1,8 +1,6 @@
 package constants
 
-import (
-	"github.com/qdm12/gluetun/internal/models"
-)
+import "github.com/qdm12/gluetun/internal/models"
 
 //nolint:lll
 const (
@@ -10,8 +8,7 @@ const (
 	WindscribeOpenvpnStaticKeyV1 = "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"
 )
 
-func WindscribeRegionChoices() (choices []string) {
-	servers := WindscribeServers()
+func WindscribeRegionChoices(servers []models.WindscribeServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Region
@@ -19,8 +16,7 @@ func WindscribeRegionChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func WindscribeCityChoices() (choices []string) {
-	servers := WindscribeServers()
+func WindscribeCityChoices(servers []models.WindscribeServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].City
@@ -28,18 +24,10 @@ func WindscribeCityChoices() (choices []string) {
 	return makeUnique(choices)
 }
 
-func WindscribeHostnameChoices() (choices []string) {
-	servers := WindscribeServers()
+func WindscribeHostnameChoices(servers []models.WindscribeServer) (choices []string) {
 	choices = make([]string, len(servers))
 	for i := range servers {
 		choices[i] = servers[i].Hostname
 	}
 	return makeUnique(choices)
 }
-
-// WindscribeServers returns a slice of all the Windscribe servers.
-func WindscribeServers() (servers []models.WindscribeServer) {
-	servers = make([]models.WindscribeServer, len(allServers.Windscribe.Servers))
-	copy(servers, allServers.Windscribe.Servers)
-	return servers
-}

internal/dns/logs.go

@@ -1,6 +1,7 @@
 package dns
 
 import (
+	"context"
 	"regexp"
 	"strings"
 
@@ -8,18 +9,24 @@ import (
 	"github.com/qdm12/golibs/logging"
 )
 
-func (l *Loop) collectLines(stdout, stderr <-chan string, done chan<- struct{}) {
+func (l *Loop) collectLines(ctx context.Context, done chan<- struct{},
+	stdout, stderr chan string) {
 	defer close(done)
+
 	var line string
-	var ok bool
+
 	for {
 		select {
-		case line, ok = <-stderr:
-		case line, ok = <-stdout:
-		}
-		if !ok {
+		case <-ctx.Done():
+			// Context should only be canceled after stdout and stderr are done
+			// being written to.
+			close(stdout)
+			close(stderr)
 			return
+		case line = <-stderr:
+		case line = <-stdout:
 		}
+
 		line, level := processLogLine(line)
 		switch level {
 		case logging.LevelDebug:

internal/dns/setup.go

@@ -30,12 +30,13 @@ func (l *Loop) setupUnbound(ctx context.Context) (
 		return nil, nil, nil, err
 	}
 
-	collectLinesDone := make(chan struct{})
-	go l.collectLines(stdoutLines, stderrLines, collectLinesDone)
+	linesCollectionCtx, linesCollectionCancel := context.WithCancel(context.Background())
+	lineCollectionDone := make(chan struct{})
+	go l.collectLines(linesCollectionCtx, lineCollectionDone,
+		stdoutLines, stderrLines)
 	closeStreams = func() {
-		close(stdoutLines)
-		close(stderrLines)
-		<-collectLinesDone
+		linesCollectionCancel()
+		<-lineCollectionDone
 	}
 
 	// use Unbound

internal/firewall/enable.go

@@ -4,8 +4,6 @@ import (
 	"context"
 	"errors"
 	"fmt"
-
-	"github.com/qdm12/gluetun/internal/constants"
 )
 
 var (
@@ -109,9 +107,9 @@ func (c *Config) enable(ctx context.Context) (err error) {
 		if err = c.acceptOutputTrafficToVPN(ctx, c.defaultInterface, c.vpnConnection, remove); err != nil {
 			return fmt.Errorf("cannot enable firewall: %w", err)
 		}
-	}
-	if err = c.acceptOutputThroughInterface(ctx, string(constants.TUN), remove); err != nil {
-		return fmt.Errorf("cannot enable firewall: %w", err)
+		if err = c.acceptOutputThroughInterface(ctx, c.vpnIntf, remove); err != nil {
+			return fmt.Errorf("cannot enable firewall: %w", err)
+		}
 	}
 
 	for _, network := range c.localNetworks {

internal/firewall/firewall.go

@@ -39,7 +39,8 @@ type Config struct { //nolint:maligned
 
 	// State
 	enabled           bool
-	vpnConnection     models.OpenVPNConnection
+	vpnConnection     models.Connection
+	vpnIntf           string
 	outboundSubnets   []net.IPNet
 	allowedInputPorts map[uint16]string // port to interface mapping
 	stateMutex        sync.Mutex

internal/firewall/iptables.go

@@ -150,7 +150,7 @@ func (c *Config) acceptEstablishedRelatedTraffic(ctx context.Context, remove boo
 }
 
 func (c *Config) acceptOutputTrafficToVPN(ctx context.Context,
-	defaultInterface string, connection models.OpenVPNConnection, remove bool) error {
+	defaultInterface string, connection models.Connection, remove bool) error {
 	instruction := fmt.Sprintf("%s OUTPUT -d %s -o %s -p %s -m %s --dport %d -j ACCEPT",
 		appendOrDelete(remove), connection.IP, defaultInterface, connection.Protocol,
 		connection.Protocol, connection.Port)

internal/firewall/outboundsubnets.go

@@ -4,6 +4,8 @@ import (
 	"context"
 	"fmt"
 	"net"
+
+	"github.com/qdm12/gluetun/internal/subnet"
 )
 
 type OutboundSubnetsSetter interface {
@@ -23,8 +25,7 @@ func (c *Config) SetOutboundSubnets(ctx context.Context, subnets []net.IPNet) (e
 
 	c.logger.Info("setting allowed subnets through firewall...")
 
-	subnetsToAdd := findSubnetsToAdd(c.outboundSubnets, subnets)
-	subnetsToRemove := findSubnetsToRemove(c.outboundSubnets, subnets)
+	subnetsToAdd, subnetsToRemove := subnet.FindSubnetsToChange(c.outboundSubnets, subnets)
 	if len(subnetsToAdd) == 0 && len(subnetsToRemove) == 0 {
 		return nil
 	}
@@ -39,12 +40,12 @@ func (c *Config) SetOutboundSubnets(ctx context.Context, subnets []net.IPNet) (e
 
 func (c *Config) removeOutboundSubnets(ctx context.Context, subnets []net.IPNet) {
 	const remove = true
-	for _, subnet := range subnets {
-		if err := c.acceptOutputFromIPToSubnet(ctx, c.defaultInterface, c.localIP, subnet, remove); err != nil {
+	for _, subNet := range subnets {
+		if err := c.acceptOutputFromIPToSubnet(ctx, c.defaultInterface, c.localIP, subNet, remove); err != nil {
 			c.logger.Error("cannot remove outdated outbound subnet through firewall: " + err.Error())
 			continue
 		}
-		c.outboundSubnets = removeSubnetFromSubnets(c.outboundSubnets, subnet)
+		c.outboundSubnets = subnet.RemoveSubnetFromSubnets(c.outboundSubnets, subNet)
 	}
 }
 

internal/firewall/subnets.go

@@ -1,53 +0,0 @@
-package firewall
-
-import (
-	"net"
-)
-
-func findSubnetsToAdd(oldSubnets, newSubnets []net.IPNet) (subnetsToAdd []net.IPNet) {
-	for _, newSubnet := range newSubnets {
-		found := false
-		for _, oldSubnet := range oldSubnets {
-			if subnetsAreEqual(oldSubnet, newSubnet) {
-				found = true
-				break
-			}
-		}
-		if !found {
-			subnetsToAdd = append(subnetsToAdd, newSubnet)
-		}
-	}
-	return subnetsToAdd
-}
-
-func findSubnetsToRemove(oldSubnets, newSubnets []net.IPNet) (subnetsToRemove []net.IPNet) {
-	for _, oldSubnet := range oldSubnets {
-		found := false
-		for _, newSubnet := range newSubnets {
-			if subnetsAreEqual(oldSubnet, newSubnet) {
-				found = true
-				break
-			}
-		}
-		if !found {
-			subnetsToRemove = append(subnetsToRemove, oldSubnet)
-		}
-	}
-	return subnetsToRemove
-}
-
-func subnetsAreEqual(a, b net.IPNet) bool {
-	return a.IP.Equal(b.IP) && a.Mask.String() == b.Mask.String()
-}
-
-func removeSubnetFromSubnets(subnets []net.IPNet, subnet net.IPNet) []net.IPNet {
-	L := len(subnets)
-	for i := range subnets {
-		if subnetsAreEqual(subnet, subnets[i]) {
-			subnets[i] = subnets[L-1]
-			subnets = subnets[:L-1]
-			break
-		}
-	}
-	return subnets
-}

internal/firewall/vpn.go

@@ -8,10 +8,12 @@ import (
 )
 
 type VPNConnectionSetter interface {
-	SetVPNConnection(ctx context.Context, connection models.OpenVPNConnection) error
+	SetVPNConnection(ctx context.Context,
+		connection models.Connection, vpnIntf string) error
 }
 
-func (c *Config) SetVPNConnection(ctx context.Context, connection models.OpenVPNConnection) (err error) {
+func (c *Config) SetVPNConnection(ctx context.Context,
+	connection models.Connection, vpnIntf string) (err error) {
 	c.stateMutex.Lock()
 	defer c.stateMutex.Unlock()
 
@@ -33,11 +35,26 @@ func (c *Config) SetVPNConnection(ctx context.Context, connection models.OpenVPN
 			c.logger.Error("cannot remove outdated VPN connection through firewall: " + err.Error())
 		}
 	}
-	c.vpnConnection = models.OpenVPNConnection{}
+	c.vpnConnection = models.Connection{}
+
+	if c.vpnIntf != "" {
+		if err = c.acceptOutputThroughInterface(ctx, c.vpnIntf, remove); err != nil {
+			c.logger.Error("cannot remove outdated VPN interface from firewall: " + err.Error())
+		}
+	}
+	c.vpnIntf = ""
+
 	remove = false
+
 	if err := c.acceptOutputTrafficToVPN(ctx, c.defaultInterface, connection, remove); err != nil {
 		return fmt.Errorf("cannot set VPN connection through firewall: %w", err)
 	}
 	c.vpnConnection = connection
+
+	if err = c.acceptOutputThroughInterface(ctx, vpnIntf, remove); err != nil {
+		return fmt.Errorf("cannot accept output traffic through interface %s: %w", vpnIntf, err)
+	}
+	c.vpnIntf = vpnIntf
+
 	return nil
 }

internal/healthcheck/health.go

@@ -12,7 +12,7 @@ import (
 func (s *Server) runHealthcheckLoop(ctx context.Context, done chan<- struct{}) {
 	defer close(done)
 
-	s.openvpn.healthyTimer = time.NewTimer(s.openvpn.healthyWait)
+	s.vpn.healthyTimer = time.NewTimer(s.vpn.healthyWait)
 
 	for {
 		previousErr := s.handler.getErr()
@@ -22,12 +22,12 @@ func (s *Server) runHealthcheckLoop(ctx context.Context, done chan<- struct{}) {
 
 		if previousErr != nil && err == nil {
 			s.logger.Info("healthy!")
-			s.openvpn.healthyTimer.Stop()
-			s.openvpn.healthyWait = s.config.OpenVPN.Initial
+			s.vpn.healthyTimer.Stop()
+			s.vpn.healthyWait = s.config.OpenVPN.Initial
 		} else if previousErr == nil && err != nil {
 			s.logger.Info("unhealthy: " + err.Error())
-			s.openvpn.healthyTimer.Stop()
-			s.openvpn.healthyTimer = time.NewTimer(s.openvpn.healthyWait)
+			s.vpn.healthyTimer.Stop()
+			s.vpn.healthyTimer = time.NewTimer(s.vpn.healthyWait)
 		}
 
 		if err != nil { // try again after 1 second
@@ -39,7 +39,7 @@ func (s *Server) runHealthcheckLoop(ctx context.Context, done chan<- struct{}) {
 				}
 				return
 			case <-timer.C:
-			case <-s.openvpn.healthyTimer.C:
+			case <-s.vpn.healthyTimer.C:
 				s.onUnhealthyOpenvpn(ctx)
 			}
 			continue

internal/healthcheck/openvpn.go

@@ -5,20 +5,20 @@ import (
 	"time"
 
 	"github.com/qdm12/gluetun/internal/constants"
-	"github.com/qdm12/gluetun/internal/openvpn"
+	"github.com/qdm12/gluetun/internal/vpn"
 )
 
-type openvpnHealth struct {
-	looper       openvpn.Looper
+type vpnHealth struct {
+	looper       vpn.Looper
 	healthyWait  time.Duration
 	healthyTimer *time.Timer
 }
 
 func (s *Server) onUnhealthyOpenvpn(ctx context.Context) {
 	s.logger.Info("program has been unhealthy for " +
-		s.openvpn.healthyWait.String() + ": restarting OpenVPN")
-	_, _ = s.openvpn.looper.ApplyStatus(ctx, constants.Stopped)
-	_, _ = s.openvpn.looper.ApplyStatus(ctx, constants.Running)
-	s.openvpn.healthyWait += s.config.OpenVPN.Addition
-	s.openvpn.healthyTimer = time.NewTimer(s.openvpn.healthyWait)
+		s.vpn.healthyWait.String() + ": restarting OpenVPN")
+	_, _ = s.vpn.looper.ApplyStatus(ctx, constants.Stopped)
+	_, _ = s.vpn.looper.ApplyStatus(ctx, constants.Running)
+	s.vpn.healthyWait += s.config.OpenVPN.Addition
+	s.vpn.healthyTimer = time.NewTimer(s.vpn.healthyWait)
 }

internal/healthcheck/server.go

@@ -5,7 +5,7 @@ import (
 	"net"
 
 	"github.com/qdm12/gluetun/internal/configuration"
-	"github.com/qdm12/gluetun/internal/openvpn"
+	"github.com/qdm12/gluetun/internal/vpn"
 	"github.com/qdm12/golibs/logging"
 )
 
@@ -20,18 +20,18 @@ type Server struct {
 	handler  *handler
 	resolver *net.Resolver
 	config   configuration.Health
-	openvpn  openvpnHealth
+	vpn      vpnHealth
 }
 
 func NewServer(config configuration.Health,
-	logger logging.Logger, openvpnLooper openvpn.Looper) *Server {
+	logger logging.Logger, vpnLooper vpn.Looper) *Server {
 	return &Server{
 		logger:   logger,
 		handler:  newHandler(logger),
 		resolver: net.DefaultResolver,
 		config:   config,
-		openvpn: openvpnHealth{
-			looper:      openvpnLooper,
+		vpn: vpnHealth{
+			looper:      vpnLooper,
 			healthyWait: config.OpenVPN.Initial,
 		},
 	}

internal/httpproxy/https.go

@@ -1,11 +1,9 @@
 package httpproxy
 
 import (
-	"context"
 	"io"
 	"net"
 	"net/http"
-	"sync"
 )
 
 func (h *handler) handleHTTPS(responseWriter http.ResponseWriter, request *http.Request) {
@@ -38,27 +36,30 @@ func (h *handler) handleHTTPS(responseWriter http.ResponseWriter, request *http.
 	}
 
 	h.wg.Add(1)
-	ctx, cancel := context.WithCancel(h.ctx)
-	const transferGoroutines = 2
-	wg := &sync.WaitGroup{}
-	wg.Add(transferGoroutines)
-	go func() { // trigger cleanup when done
-		wg.Wait()
-		cancel()
-	}()
-	go func() { // cleanup
-		<-ctx.Done()
+
+	serverToClientDone := make(chan struct{})
+	clientToServerClientDone := make(chan struct{})
+	go transfer(destinationConn, clientConnection, clientToServerClientDone)
+	go transfer(clientConnection, destinationConn, serverToClientDone)
+
+	select {
+	case <-h.ctx.Done():
 		destinationConn.Close()
 		clientConnection.Close()
-		h.wg.Done()
-	}()
-	go transfer(destinationConn, clientConnection, wg)
-	go transfer(clientConnection, destinationConn, wg)
+		<-serverToClientDone
+		<-clientToServerClientDone
+	case <-serverToClientDone:
+		<-clientToServerClientDone
+	case <-clientToServerClientDone: // happens more rarely, when a connection is closed on the client side
+		<-serverToClientDone
+	}
+
+	h.wg.Done()
 }
 
-func transfer(destination io.WriteCloser, source io.ReadCloser, wg *sync.WaitGroup) {
+func transfer(destination io.WriteCloser, source io.ReadCloser, done chan<- struct{}) {
 	_, _ = io.Copy(destination, source)
 	_ = source.Close()
 	_ = destination.Close()
-	wg.Done()
+	close(done)
 }

internal/httpproxy/server.go

@@ -9,11 +9,7 @@ import (
 	"github.com/qdm12/golibs/logging"
 )
 
-type Server interface {
-	Run(ctx context.Context, errorCh chan<- error)
-}
-
-type server struct {
+type Server struct {
 	address    string
 	handler    http.Handler
 	logger     logging.Logger
@@ -21,9 +17,9 @@ type server struct {
 }
 
 func New(ctx context.Context, address string, logger logging.Logger,
-	stealth, verbose bool, username, password string) Server {
+	stealth, verbose bool, username, password string) *Server {
 	wg := &sync.WaitGroup{}
-	return &server{
+	return &Server{
 		address:    address,
 		handler:    newHandler(ctx, wg, logger, stealth, verbose, username, password),
 		logger:     logger,
@@ -31,7 +27,7 @@ func New(ctx context.Context, address string, logger logging.Logger,
 	}
 }
 
-func (s *server) Run(ctx context.Context, errorCh chan<- error) {
+func (s *Server) Run(ctx context.Context, errorCh chan<- error) {
 	server := http.Server{Addr: s.address, Handler: s.handler}
 	go func() {
 		<-ctx.Done()

internal/models/connection.go

@@ -0,0 +1,51 @@
+package models
+
+import (
+	"fmt"
+	"net"
+)
+
+type Connection struct {
+	// Type is the connection type and can be "openvpn" or "wireguard"
+	Type string `json:"type"`
+	// IP is the VPN server IP address.
+	IP net.IP `json:"ip"`
+	// Port is the VPN server port.
+	Port uint16 `json:"port"`
+	// Protocol can be "tcp" or "udp".
+	Protocol string `json:"protocol"`
+	// Hostname is used for IPVanish, IVPN, Privado
+	// and Windscribe for TLS verification.
+	Hostname string `json:"hostname"`
+	// PubKey is the public key of the VPN server,
+	// used only for Wireguard.
+	PubKey string `json:"pubkey"`
+}
+
+func (c *Connection) Equal(other Connection) bool {
+	return c.IP.Equal(other.IP) && c.Port == other.Port &&
+		c.Protocol == other.Protocol && c.Hostname == other.Hostname &&
+		c.PubKey == other.PubKey
+}
+
+func (c Connection) OpenVPNRemoteLine() (line string) {
+	return "remote " + c.IP.String() + " " + fmt.Sprint(c.Port)
+}
+
+func (c Connection) OpenVPNProtoLine() (line string) {
+	return "proto " + c.Protocol
+}
+
+// UpdateEmptyWith updates each field of the connection where the
+// value is not set using the value given as arguments.
+func (c *Connection) UpdateEmptyWith(ip net.IP, port uint16, protocol string) {
+	if c.IP == nil {
+		c.IP = ip
+	}
+	if c.Port == 0 {
+		c.Port = port
+	}
+	if c.Protocol == "" {
+		c.Protocol = protocol
+	}
+}

internal/models/getservers.go

@@ -0,0 +1,252 @@
+package models
+
+import (
+	"net"
+)
+
+func (a AllServers) GetCopy() (servers AllServers) {
+	servers = a // copy versions and timestamps
+	servers.Cyberghost.Servers = a.GetCyberghost()
+	servers.Fastestvpn.Servers = a.GetFastestvpn()
+	servers.HideMyAss.Servers = a.GetHideMyAss()
+	servers.Ipvanish.Servers = a.GetIpvanish()
+	servers.Ivpn.Servers = a.GetIvpn()
+	servers.Mullvad.Servers = a.GetMullvad()
+	servers.Nordvpn.Servers = a.GetNordvpn()
+	servers.Privado.Servers = a.GetPrivado()
+	servers.Pia.Servers = a.GetPia()
+	servers.Privatevpn.Servers = a.GetPrivatevpn()
+	servers.Protonvpn.Servers = a.GetProtonvpn()
+	servers.Purevpn.Servers = a.GetPurevpn()
+	servers.Surfshark.Servers = a.GetSurfshark()
+	servers.Torguard.Servers = a.GetTorguard()
+	servers.VPNUnlimited.Servers = a.GetVPNUnlimited()
+	servers.Vyprvpn.Servers = a.GetVyprvpn()
+	servers.Windscribe.Servers = a.GetWindscribe()
+	return servers
+}
+
+func (a *AllServers) GetCyberghost() (servers []CyberghostServer) {
+	if a.Cyberghost.Servers == nil {
+		return nil
+	}
+	servers = make([]CyberghostServer, len(a.Cyberghost.Servers))
+	for i, serverToCopy := range a.Cyberghost.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetFastestvpn() (servers []FastestvpnServer) {
+	if a.Fastestvpn.Servers == nil {
+		return nil
+	}
+	servers = make([]FastestvpnServer, len(a.Fastestvpn.Servers))
+	for i, serverToCopy := range a.Fastestvpn.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetHideMyAss() (servers []HideMyAssServer) {
+	if a.HideMyAss.Servers == nil {
+		return nil
+	}
+	servers = make([]HideMyAssServer, len(a.HideMyAss.Servers))
+	for i, serverToCopy := range a.HideMyAss.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetIpvanish() (servers []IpvanishServer) {
+	if a.Ipvanish.Servers == nil {
+		return nil
+	}
+	servers = make([]IpvanishServer, len(a.Ipvanish.Servers))
+	for i, serverToCopy := range a.Ipvanish.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetIvpn() (servers []IvpnServer) {
+	if a.Ivpn.Servers == nil {
+		return nil
+	}
+	servers = make([]IvpnServer, len(a.Ivpn.Servers))
+	for i, serverToCopy := range a.Ivpn.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetMullvad() (servers []MullvadServer) {
+	if a.Mullvad.Servers == nil {
+		return nil
+	}
+	servers = make([]MullvadServer, len(a.Mullvad.Servers))
+	for i, serverToCopy := range a.Mullvad.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+		servers[i].IPsV6 = copyIPs(serverToCopy.IPsV6)
+	}
+	return servers
+}
+
+func (a *AllServers) GetNordvpn() (servers []NordvpnServer) {
+	if a.Nordvpn.Servers == nil {
+		return nil
+	}
+	servers = make([]NordvpnServer, len(a.Nordvpn.Servers))
+	for i, serverToCopy := range a.Nordvpn.Servers {
+		servers[i] = serverToCopy
+		servers[i].IP = copyIP(serverToCopy.IP)
+	}
+	return servers
+}
+
+func (a *AllServers) GetPia() (servers []PIAServer) {
+	if a.Pia.Servers == nil {
+		return nil
+	}
+	servers = make([]PIAServer, len(a.Pia.Servers))
+	for i, serverToCopy := range a.Pia.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetPrivado() (servers []PrivadoServer) {
+	if a.Privado.Servers == nil {
+		return nil
+	}
+	servers = make([]PrivadoServer, len(a.Privado.Servers))
+	for i, serverToCopy := range a.Privado.Servers {
+		servers[i] = serverToCopy
+		servers[i].IP = copyIP(serverToCopy.IP)
+	}
+	return servers
+}
+
+func (a *AllServers) GetPrivatevpn() (servers []PrivatevpnServer) {
+	if a.Privatevpn.Servers == nil {
+		return nil
+	}
+	servers = make([]PrivatevpnServer, len(a.Privatevpn.Servers))
+	for i, serverToCopy := range a.Privatevpn.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetProtonvpn() (servers []ProtonvpnServer) {
+	if a.Protonvpn.Servers == nil {
+		return nil
+	}
+	servers = make([]ProtonvpnServer, len(a.Protonvpn.Servers))
+	for i, serverToCopy := range a.Protonvpn.Servers {
+		servers[i] = serverToCopy
+		servers[i].EntryIP = copyIP(serverToCopy.EntryIP)
+		servers[i].ExitIP = copyIP(serverToCopy.ExitIP)
+	}
+	return servers
+}
+
+func (a *AllServers) GetPurevpn() (servers []PurevpnServer) {
+	if a.Purevpn.Servers == nil {
+		return nil
+	}
+	servers = make([]PurevpnServer, len(a.Purevpn.Servers))
+	for i, serverToCopy := range a.Purevpn.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetSurfshark() (servers []SurfsharkServer) {
+	if a.Surfshark.Servers == nil {
+		return nil
+	}
+	servers = make([]SurfsharkServer, len(a.Surfshark.Servers))
+	for i, serverToCopy := range a.Surfshark.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetTorguard() (servers []TorguardServer) {
+	if a.Torguard.Servers == nil {
+		return nil
+	}
+	servers = make([]TorguardServer, len(a.Torguard.Servers))
+	for i, serverToCopy := range a.Torguard.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetVPNUnlimited() (servers []VPNUnlimitedServer) {
+	if a.VPNUnlimited.Servers == nil {
+		return nil
+	}
+	servers = make([]VPNUnlimitedServer, len(a.VPNUnlimited.Servers))
+	for i, serverToCopy := range a.VPNUnlimited.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetVyprvpn() (servers []VyprvpnServer) {
+	if a.Vyprvpn.Servers == nil {
+		return nil
+	}
+	servers = make([]VyprvpnServer, len(a.Vyprvpn.Servers))
+	for i, serverToCopy := range a.Vyprvpn.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func (a *AllServers) GetWindscribe() (servers []WindscribeServer) {
+	if a.Windscribe.Servers == nil {
+		return nil
+	}
+	servers = make([]WindscribeServer, len(a.Windscribe.Servers))
+	for i, serverToCopy := range a.Windscribe.Servers {
+		servers[i] = serverToCopy
+		servers[i].IPs = copyIPs(serverToCopy.IPs)
+	}
+	return servers
+}
+
+func copyIPs(toCopy []net.IP) (copied []net.IP) {
+	if toCopy == nil {
+		return nil
+	}
+
+	copied = make([]net.IP, len(toCopy))
+	for i := range toCopy {
+		copied[i] = copyIP(toCopy[i])
+	}
+
+	return copied
+}
+
+func copyIP(toCopy net.IP) (copied net.IP) {
+	copied = make(net.IP, len(toCopy))
+	copy(copied, toCopy)
+	return copied
+}

internal/models/getservers_test.go

@@ -0,0 +1,181 @@
+package models
+
+import (
+	"net"
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+	"github.com/stretchr/testify/require"
+)
+
+func Test_AllServers_GetCopy(t *testing.T) {
+	allServers := AllServers{
+		Cyberghost: CyberghostServers{
+			Version: 2,
+			Servers: []CyberghostServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Fastestvpn: FastestvpnServers{
+			Servers: []FastestvpnServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		HideMyAss: HideMyAssServers{
+			Servers: []HideMyAssServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Ipvanish: IpvanishServers{
+			Servers: []IpvanishServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Ivpn: IvpnServers{
+			Servers: []IvpnServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Mullvad: MullvadServers{
+			Servers: []MullvadServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Nordvpn: NordvpnServers{
+			Servers: []NordvpnServer{{
+				IP: net.IP{1, 2, 3, 4},
+			}},
+		},
+		Privado: PrivadoServers{
+			Servers: []PrivadoServer{{
+				IP: net.IP{1, 2, 3, 4},
+			}},
+		},
+		Pia: PiaServers{
+			Servers: []PIAServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Privatevpn: PrivatevpnServers{
+			Servers: []PrivatevpnServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Protonvpn: ProtonvpnServers{
+			Servers: []ProtonvpnServer{{
+				EntryIP: net.IP{1, 2, 3, 4},
+				ExitIP:  net.IP{1, 2, 3, 4},
+			}},
+		},
+		Purevpn: PurevpnServers{
+			Version: 1,
+			Servers: []PurevpnServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Surfshark: SurfsharkServers{
+			Servers: []SurfsharkServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Torguard: TorguardServers{
+			Servers: []TorguardServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		VPNUnlimited: VPNUnlimitedServers{
+			Servers: []VPNUnlimitedServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Vyprvpn: VyprvpnServers{
+			Servers: []VyprvpnServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+		Windscribe: WindscribeServers{
+			Servers: []WindscribeServer{{
+				IPs: []net.IP{{1, 2, 3, 4}},
+			}},
+		},
+	}
+
+	servers := allServers.GetCopy()
+
+	assert.Equal(t, allServers, servers)
+}
+
+func Test_AllServers_GetVyprvpn(t *testing.T) {
+	allServers := AllServers{
+		Vyprvpn: VyprvpnServers{
+			Servers: []VyprvpnServer{
+				{Hostname: "a", IPs: []net.IP{{1, 1, 1, 1}}},
+				{Hostname: "b", IPs: []net.IP{{2, 2, 2, 2}}},
+			},
+		},
+	}
+
+	servers := allServers.GetVyprvpn()
+
+	expectedServers := []VyprvpnServer{
+		{Hostname: "a", IPs: []net.IP{{1, 1, 1, 1}}},
+		{Hostname: "b", IPs: []net.IP{{2, 2, 2, 2}}},
+	}
+	assert.Equal(t, expectedServers, servers)
+
+	allServers.Vyprvpn.Servers[0].IPs[0][0] = 9
+	assert.NotEqual(t, 9, servers[0].IPs[0][0])
+
+	allServers.Vyprvpn.Servers[0].IPs[0][0] = 1
+	servers[0].IPs[0][0] = 9
+	assert.NotEqual(t, 9, allServers.Vyprvpn.Servers[0].IPs[0][0])
+}
+
+func Test_copyIPs(t *testing.T) {
+	t.Parallel()
+
+	testCases := map[string]struct {
+		toCopy []net.IP
+		copied []net.IP
+	}{
+		"nil": {},
+		"empty": {
+			toCopy: []net.IP{},
+			copied: []net.IP{},
+		},
+		"single IP": {
+			toCopy: []net.IP{{1, 1, 1, 1}},
+			copied: []net.IP{{1, 1, 1, 1}},
+		},
+		"two IPs": {
+			toCopy: []net.IP{{1, 1, 1, 1}, {2, 2, 2, 2}},
+			copied: []net.IP{{1, 1, 1, 1}, {2, 2, 2, 2}},
+		},
+	}
+
+	for name, testCase := range testCases {
+		testCase := testCase
+		t.Run(name, func(t *testing.T) {
+			t.Parallel()
+
+			// Reserver leading 9 for copy modifications below
+			for _, ipToCopy := range testCase.toCopy {
+				require.NotEqual(t, 9, ipToCopy[0])
+			}
+
+			copied := copyIPs(testCase.toCopy)
+
+			assert.Equal(t, testCase.copied, copied)
+
+			if len(copied) > 0 {
+				original := testCase.toCopy[0][0]
+				testCase.toCopy[0][0] = 9
+				assert.NotEqual(t, 9, copied[0][0])
+				testCase.toCopy[0][0] = original
+
+				copied[0][0] = 9
+				assert.NotEqual(t, 9, testCase.toCopy[0][0])
+			}
+		})
+	}
+}

internal/models/location.go

@@ -0,0 +1,12 @@
+package models
+
+// SurfsharkLocationData is required to keep location data on Surfshark
+// servers that are not obtained through their API.
+type SurfsharkLocationData struct {
+	Region   string
+	Country  string
+	City     string
+	RetroLoc string // TODO remove in v4
+	Hostname string
+	MultiHop bool
+}

internal/models/openvpn.go

@@ -1,28 +0,0 @@
-package models
-
-import (
-	"net"
-	"strconv"
-)
-
-type OpenVPNConnection struct {
-	IP       net.IP `json:"ip"`
-	Port     uint16 `json:"port"`
-	Protocol string `json:"protocol"`
-	// Hostname is used for IPVanish, IVPN, Privado
-	// and Windscribe for TLS verification
-	Hostname string `json:"hostname"`
-}
-
-func (o *OpenVPNConnection) Equal(other OpenVPNConnection) bool {
-	return o.IP.Equal(other.IP) && o.Port == other.Port && o.Protocol == other.Protocol &&
-		o.Hostname == other.Hostname
-}
-
-func (o OpenVPNConnection) RemoteLine() (line string) {
-	return "remote " + o.IP.String() + " " + strconv.Itoa(int(o.Port))
-}
-
-func (o OpenVPNConnection) ProtoLine() (line string) {
-	return "proto " + o.Protocol
-}

internal/models/server.go

@@ -39,15 +39,19 @@ type IpvanishServer struct {
 }
 
 type IvpnServer struct {
+	VPN      string   `json:"vpn"`
 	Country  string   `json:"country"`
 	City     string   `json:"city"`
+	ISP      string   `json:"isp"`
 	Hostname string   `json:"hostname"`
+	WgPubKey string   `json:"wgpubkey,omitempty"`
 	TCP      bool     `json:"tcp"`
 	UDP      bool     `json:"udp"`
 	IPs      []net.IP `json:"ips"`
 }
 
 type MullvadServer struct {
+	VPN      string   `json:"vpn"`
 	IPs      []net.IP `json:"ips"`
 	IPsV6    []net.IP `json:"ipsv6"`
 	Country  string   `json:"country"`
@@ -55,6 +59,7 @@ type MullvadServer struct {
 	Hostname string   `json:"hostname"`
 	ISP      string   `json:"isp"`
 	Owned    bool     `json:"owned"`
+	WgPubKey string   `json:"wgpubkey,omitempty"`
 }
 
 type NordvpnServer struct { //nolint:maligned
@@ -114,7 +119,11 @@ type PurevpnServer struct {
 
 type SurfsharkServer struct {
 	Region   string   `json:"region"`
+	Country  string   `json:"country"` // Country is also used for multi-hop
+	City     string   `json:"city"`
+	RetroLoc string   `json:"retroloc"` // TODO remove in v4
 	Hostname string   `json:"hostname"`
+	MultiHop bool     `json:"multihop"`
 	TCP      bool     `json:"tcp"`
 	UDP      bool     `json:"udp"`
 	IPs      []net.IP `json:"ips"`
@@ -149,9 +158,11 @@ type VyprvpnServer struct {
 }
 
 type WindscribeServer struct {
+	VPN      string   `json:"vpn"`
 	Region   string   `json:"region"`
 	City     string   `json:"city"`
 	Hostname string   `json:"hostname"`
-	OvpnX509 string   `json:"x509"`
+	OvpnX509 string   `json:"x509,omitempty"`
+	WgPubKey string   `json:"wgpubkey,omitempty"`
 	IPs      []net.IP `json:"ips"`
 }

internal/netlink/address.go

@@ -0,0 +1,22 @@
+package netlink
+
+import "github.com/vishvananda/netlink"
+
+type Addr = netlink.Addr
+
+var _ Addresser = (*NetLink)(nil)
+
+type Addresser interface {
+	AddrList(link netlink.Link, family int) (
+		addresses []netlink.Addr, err error)
+	AddrAdd(link netlink.Link, addr *netlink.Addr) error
+}
+
+func (n *NetLink) AddrList(link netlink.Link, family int) (
+	addresses []netlink.Addr, err error) {
+	return netlink.AddrList(link, family)
+}
+
+func (n *NetLink) AddrAdd(link netlink.Link, addr *netlink.Addr) error {
+	return netlink.AddrAdd(link, addr)
+}

internal/netlink/family.go

@@ -0,0 +1,9 @@
+package netlink
+
+import "github.com/vishvananda/netlink"
+
+//nolint:revive
+const (
+	FAMILY_ALL = netlink.FAMILY_ALL
+	FAMILY_V4  = netlink.FAMILY_V4
+)

internal/netlink/interface.go

@@ -0,0 +1,12 @@
+package netlink
+
+//go:generate mockgen -destination=mock_$GOPACKAGE/$GOFILE . NetLinker
+
+var _ NetLinker = (*NetLink)(nil)
+
+type NetLinker interface {
+	Addresser
+	Linker
+	Router
+	Ruler
+}

internal/netlink/ipnet.go

@@ -0,0 +1,11 @@
+package netlink
+
+import (
+	"net"
+
+	"github.com/vishvananda/netlink"
+)
+
+func NewIPNet(ip net.IP) *net.IPNet {
+	return netlink.NewIPNet(ip)
+}

internal/netlink/link.go

@@ -0,0 +1,48 @@
+package netlink
+
+import "github.com/vishvananda/netlink"
+
+type (
+	Link   = netlink.Link
+	Bridge = netlink.Bridge
+)
+
+var _ Linker = (*NetLink)(nil)
+
+type Linker interface {
+	LinkList() (links []netlink.Link, err error)
+	LinkByName(name string) (link netlink.Link, err error)
+	LinkByIndex(index int) (link netlink.Link, err error)
+	LinkAdd(link netlink.Link) (err error)
+	LinkDel(link netlink.Link) (err error)
+	LinkSetUp(link netlink.Link) (err error)
+	LinkSetDown(link netlink.Link) (err error)
+}
+
+func (n *NetLink) LinkList() (links []netlink.Link, err error) {
+	return netlink.LinkList()
+}
+
+func (n *NetLink) LinkByName(name string) (link netlink.Link, err error) {
+	return netlink.LinkByName(name)
+}
+
+func (n *NetLink) LinkByIndex(index int) (link netlink.Link, err error) {
+	return netlink.LinkByIndex(index)
+}
+
+func (n *NetLink) LinkAdd(link netlink.Link) (err error) {
+	return netlink.LinkAdd(link)
+}
+
+func (n *NetLink) LinkDel(link netlink.Link) (err error) {
+	return netlink.LinkDel(link)
+}
+
+func (n *NetLink) LinkSetUp(link netlink.Link) (err error) {
+	return netlink.LinkSetUp(link)
+}
+
+func (n *NetLink) LinkSetDown(link netlink.Link) (err error) {
+	return netlink.LinkSetDown(link)
+}

internal/netlink/linkattrs.go

@@ -0,0 +1,9 @@
+package netlink
+
+import "github.com/vishvananda/netlink"
+
+type LinkAttrs = netlink.LinkAttrs
+
+func NewLinkAttrs() LinkAttrs {
+	return netlink.NewLinkAttrs()
+}

internal/netlink/mock_netlink/interface.go

@@ -0,0 +1,265 @@
+// Code generated by MockGen. DO NOT EDIT.
+// Source: github.com/qdm12/gluetun/internal/netlink (interfaces: NetLinker)
+
+// Package mock_netlink is a generated GoMock package.
+package mock_netlink
+
+import (
+	reflect "reflect"
+
+	gomock "github.com/golang/mock/gomock"
+	netlink "github.com/vishvananda/netlink"
+)
+
+// MockNetLinker is a mock of NetLinker interface.
+type MockNetLinker struct {
+	ctrl     *gomock.Controller
+	recorder *MockNetLinkerMockRecorder
+}
+
+// MockNetLinkerMockRecorder is the mock recorder for MockNetLinker.
+type MockNetLinkerMockRecorder struct {
+	mock *MockNetLinker
+}
+
+// NewMockNetLinker creates a new mock instance.
+func NewMockNetLinker(ctrl *gomock.Controller) *MockNetLinker {
+	mock := &MockNetLinker{ctrl: ctrl}
+	mock.recorder = &MockNetLinkerMockRecorder{mock}
+	return mock
+}
+
+// EXPECT returns an object that allows the caller to indicate expected use.
+func (m *MockNetLinker) EXPECT() *MockNetLinkerMockRecorder {
+	return m.recorder
+}
+
+// AddrAdd mocks base method.
+func (m *MockNetLinker) AddrAdd(arg0 netlink.Link, arg1 *netlink.Addr) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "AddrAdd", arg0, arg1)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// AddrAdd indicates an expected call of AddrAdd.
+func (mr *MockNetLinkerMockRecorder) AddrAdd(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "AddrAdd", reflect.TypeOf((*MockNetLinker)(nil).AddrAdd), arg0, arg1)
+}
+
+// AddrList mocks base method.
+func (m *MockNetLinker) AddrList(arg0 netlink.Link, arg1 int) ([]netlink.Addr, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "AddrList", arg0, arg1)
+	ret0, _ := ret[0].([]netlink.Addr)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// AddrList indicates an expected call of AddrList.
+func (mr *MockNetLinkerMockRecorder) AddrList(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "AddrList", reflect.TypeOf((*MockNetLinker)(nil).AddrList), arg0, arg1)
+}
+
+// LinkAdd mocks base method.
+func (m *MockNetLinker) LinkAdd(arg0 netlink.Link) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "LinkAdd", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// LinkAdd indicates an expected call of LinkAdd.
+func (mr *MockNetLinkerMockRecorder) LinkAdd(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LinkAdd", reflect.TypeOf((*MockNetLinker)(nil).LinkAdd), arg0)
+}
+
+// LinkByIndex mocks base method.
+func (m *MockNetLinker) LinkByIndex(arg0 int) (netlink.Link, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "LinkByIndex", arg0)
+	ret0, _ := ret[0].(netlink.Link)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// LinkByIndex indicates an expected call of LinkByIndex.
+func (mr *MockNetLinkerMockRecorder) LinkByIndex(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LinkByIndex", reflect.TypeOf((*MockNetLinker)(nil).LinkByIndex), arg0)
+}
+
+// LinkByName mocks base method.
+func (m *MockNetLinker) LinkByName(arg0 string) (netlink.Link, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "LinkByName", arg0)
+	ret0, _ := ret[0].(netlink.Link)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// LinkByName indicates an expected call of LinkByName.
+func (mr *MockNetLinkerMockRecorder) LinkByName(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LinkByName", reflect.TypeOf((*MockNetLinker)(nil).LinkByName), arg0)
+}
+
+// LinkDel mocks base method.
+func (m *MockNetLinker) LinkDel(arg0 netlink.Link) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "LinkDel", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// LinkDel indicates an expected call of LinkDel.
+func (mr *MockNetLinkerMockRecorder) LinkDel(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LinkDel", reflect.TypeOf((*MockNetLinker)(nil).LinkDel), arg0)
+}
+
+// LinkList mocks base method.
+func (m *MockNetLinker) LinkList() ([]netlink.Link, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "LinkList")
+	ret0, _ := ret[0].([]netlink.Link)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// LinkList indicates an expected call of LinkList.
+func (mr *MockNetLinkerMockRecorder) LinkList() *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LinkList", reflect.TypeOf((*MockNetLinker)(nil).LinkList))
+}
+
+// LinkSetDown mocks base method.
+func (m *MockNetLinker) LinkSetDown(arg0 netlink.Link) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "LinkSetDown", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// LinkSetDown indicates an expected call of LinkSetDown.
+func (mr *MockNetLinkerMockRecorder) LinkSetDown(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LinkSetDown", reflect.TypeOf((*MockNetLinker)(nil).LinkSetDown), arg0)
+}
+
+// LinkSetUp mocks base method.
+func (m *MockNetLinker) LinkSetUp(arg0 netlink.Link) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "LinkSetUp", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// LinkSetUp indicates an expected call of LinkSetUp.
+func (mr *MockNetLinkerMockRecorder) LinkSetUp(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "LinkSetUp", reflect.TypeOf((*MockNetLinker)(nil).LinkSetUp), arg0)
+}
+
+// RouteAdd mocks base method.
+func (m *MockNetLinker) RouteAdd(arg0 *netlink.Route) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RouteAdd", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// RouteAdd indicates an expected call of RouteAdd.
+func (mr *MockNetLinkerMockRecorder) RouteAdd(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RouteAdd", reflect.TypeOf((*MockNetLinker)(nil).RouteAdd), arg0)
+}
+
+// RouteDel mocks base method.
+func (m *MockNetLinker) RouteDel(arg0 *netlink.Route) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RouteDel", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// RouteDel indicates an expected call of RouteDel.
+func (mr *MockNetLinkerMockRecorder) RouteDel(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RouteDel", reflect.TypeOf((*MockNetLinker)(nil).RouteDel), arg0)
+}
+
+// RouteList mocks base method.
+func (m *MockNetLinker) RouteList(arg0 netlink.Link, arg1 int) ([]netlink.Route, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RouteList", arg0, arg1)
+	ret0, _ := ret[0].([]netlink.Route)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// RouteList indicates an expected call of RouteList.
+func (mr *MockNetLinkerMockRecorder) RouteList(arg0, arg1 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RouteList", reflect.TypeOf((*MockNetLinker)(nil).RouteList), arg0, arg1)
+}
+
+// RouteReplace mocks base method.
+func (m *MockNetLinker) RouteReplace(arg0 *netlink.Route) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RouteReplace", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// RouteReplace indicates an expected call of RouteReplace.
+func (mr *MockNetLinkerMockRecorder) RouteReplace(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RouteReplace", reflect.TypeOf((*MockNetLinker)(nil).RouteReplace), arg0)
+}
+
+// RuleAdd mocks base method.
+func (m *MockNetLinker) RuleAdd(arg0 *netlink.Rule) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RuleAdd", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// RuleAdd indicates an expected call of RuleAdd.
+func (mr *MockNetLinkerMockRecorder) RuleAdd(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RuleAdd", reflect.TypeOf((*MockNetLinker)(nil).RuleAdd), arg0)
+}
+
+// RuleDel mocks base method.
+func (m *MockNetLinker) RuleDel(arg0 *netlink.Rule) error {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RuleDel", arg0)
+	ret0, _ := ret[0].(error)
+	return ret0
+}
+
+// RuleDel indicates an expected call of RuleDel.
+func (mr *MockNetLinkerMockRecorder) RuleDel(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RuleDel", reflect.TypeOf((*MockNetLinker)(nil).RuleDel), arg0)
+}
+
+// RuleList mocks base method.
+func (m *MockNetLinker) RuleList(arg0 int) ([]netlink.Rule, error) {
+	m.ctrl.T.Helper()
+	ret := m.ctrl.Call(m, "RuleList", arg0)
+	ret0, _ := ret[0].([]netlink.Rule)
+	ret1, _ := ret[1].(error)
+	return ret0, ret1
+}
+
+// RuleList indicates an expected call of RuleList.
+func (mr *MockNetLinkerMockRecorder) RuleList(arg0 interface{}) *gomock.Call {
+	mr.mock.ctrl.T.Helper()
+	return mr.mock.ctrl.RecordCallWithMethodType(mr.mock, "RuleList", reflect.TypeOf((*MockNetLinker)(nil).RuleList), arg0)
+}

internal/netlink/netlink.go

@@ -0,0 +1,7 @@
+package netlink
+
+type NetLink struct{}
+
+func New() *NetLink {
+	return &NetLink{}
+}