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Use uint16

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This commit is contained in:
Viktor Liu
2025-07-24 13:56:45 +02:00
parent da623e6f04
commit eb74c507bc
34 changed files with 84 additions and 74 deletions
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2
client/cmd/root.go
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@@ -74,7 +74,7 @@ var (
anonymizeFlag bool
dnsRouteInterval time.Duration
lazyConnEnabled bool
mtu int
mtu uint16
rootCmd = &cobra.Command{
Use: "netbird",

4
client/cmd/up.go
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@@ -54,7 +54,7 @@ func init() {
upCmd.PersistentFlags().BoolVarP(&foregroundMode, "foreground-mode", "F", false, "start service in foreground")
upCmd.PersistentFlags().StringVar(&interfaceName, interfaceNameFlag, iface.WgInterfaceDefault, "Wireguard interface name")
upCmd.PersistentFlags().Uint16Var(&wireguardPort, wireguardPortFlag, iface.DefaultWgPort, "Wireguard interface listening port")
upCmd.PersistentFlags().IntVar(&mtu, mtuFlag, iface.DefaultMTU, "Set MTU (Maximum Transmission Unit) for the WireGuard interface")
upCmd.PersistentFlags().Uint16Var(&mtu, mtuFlag, iface.DefaultMTU, "Set MTU (Maximum Transmission Unit) for the WireGuard interface")
upCmd.PersistentFlags().BoolVarP(&networkMonitor, networkMonitorFlag, "N", networkMonitor,
`Manage network monitoring. Defaults to true on Windows and macOS, false on Linux and FreeBSD. `+
`E.g. --network-monitor=false to disable or --network-monitor=true to enable.`,
@@ -419,7 +419,7 @@ func setupLoginRequest(providedSetupKey string, customDNSAddressConverted []byte
return &loginRequest, nil
}
func validateMTU(mtu int) error {
func validateMTU(mtu uint16) error {
if mtu < iface.MinMTU {
return fmt.Errorf("MTU %d below minimum (%d bytes)", mtu, iface.MinMTU)
}

6
client/iface/bind/ice_bind.go
View File

@@ -56,11 +56,11 @@ type ICEBind struct {
muUDPMux sync.Mutex
udpMux *UniversalUDPMuxDefault
address wgaddr.Address
mtu int
mtu uint16
activityRecorder *ActivityRecorder
}
func NewICEBind(transportNet transport.Net, filterFn FilterFn, address wgaddr.Address, mtu int) *ICEBind {
func NewICEBind(transportNet transport.Net, filterFn FilterFn, address wgaddr.Address, mtu uint16) *ICEBind {
b, _ := wgConn.NewStdNetBind().(*wgConn.StdNetBind)
ib := &ICEBind{
StdNetBind: b,
@@ -82,7 +82,7 @@ func NewICEBind(transportNet transport.Net, filterFn FilterFn, address wgaddr.Ad
return ib
}
func (s *ICEBind) MTU() int {
func (s *ICEBind) MTU() uint16 {
return s.mtu
}

2
client/iface/bind/udp_mux_ios.go
View File

@@ -4,4 +4,4 @@ package bind
func (m *UDPMuxDefault) notifyAddressRemoval(addr string) {
// iOS doesn't support nbnet hooks, so this is a no-op
}
}

5
client/iface/bind/udp_mux_universal.go
View File

@@ -18,11 +18,10 @@ import (
"github.com/pion/stun/v2"
"github.com/pion/transport/v3"
"github.com/netbirdio/netbird/client/iface/wgaddr"
"github.com/netbirdio/netbird/client/iface/bufsize"
"github.com/netbirdio/netbird/client/iface/wgaddr"
)
// FilterFn is a function that filters out candidates based on the address.
// If it returns true, the address is to be filtered. It also returns the prefix of matching route.
type FilterFn func(address netip.Addr) (bool, netip.Prefix, error)
@@ -46,7 +45,7 @@ type UniversalUDPMuxParams struct {
Net transport.Net
FilterFn FilterFn
WGAddress wgaddr.Address
MTU int
MTU uint16
}
// NewUniversalUDPMuxDefault creates an implementation of UniversalUDPMux embedding UDPMux

9
client/iface/bufsize/bufsize.go Normal file
View File

@@ -0,0 +1,9 @@
package bufsize
const (
// WGBufferOverhead represents the additional buffer space needed beyond MTU
// for WireGuard packet encapsulation (WG header + UDP + IP + safety margin)
// Original hardcoded buffers were 1500, default MTU is 1280, so overhead = 220
// TODO: Calculate this properly based on actual protocol overhead instead of using hardcoded difference
WGBufferOverhead = 220
)

2
client/iface/device.go
View File

@@ -17,7 +17,7 @@ type WGTunDevice interface {
Up() (*bind.UniversalUDPMuxDefault, error)
UpdateAddr(address wgaddr.Address) error
WgAddress() wgaddr.Address
MTU() int
MTU() uint16
DeviceName() string
Close() error
FilteredDevice() *device.FilteredDevice

8
client/iface/device/device_android.go
View File

@@ -21,7 +21,7 @@ type WGTunDevice struct {
address wgaddr.Address
port int
key string
mtu int
mtu uint16
iceBind *bind.ICEBind
tunAdapter TunAdapter
disableDNS bool
@@ -33,7 +33,7 @@ type WGTunDevice struct {
configurer WGConfigurer
}
func NewTunDevice(address wgaddr.Address, port int, key string, mtu int, iceBind *bind.ICEBind, tunAdapter TunAdapter, disableDNS bool) *WGTunDevice {
func NewTunDevice(address wgaddr.Address, port int, key string, mtu uint16, iceBind *bind.ICEBind, tunAdapter TunAdapter, disableDNS bool) *WGTunDevice {
return &WGTunDevice{
address: address,
port: port,
@@ -58,7 +58,7 @@ func (t *WGTunDevice) Create(routes []string, dns string, searchDomains []string
searchDomainsToString = ""
}
fd, err := t.tunAdapter.ConfigureInterface(t.address.String(), t.mtu, dns, searchDomainsToString, routesString)
fd, err := t.tunAdapter.ConfigureInterface(t.address.String(), int(t.mtu), dns, searchDomainsToString, routesString)
if err != nil {
log.Errorf("failed to create Android interface: %s", err)
return nil, err
@@ -137,7 +137,7 @@ func (t *WGTunDevice) WgAddress() wgaddr.Address {
return t.address
}
func (t *WGTunDevice) MTU() int {
func (t *WGTunDevice) MTU() uint16 {
return t.mtu
}

8
client/iface/device/device_darwin.go
View File

@@ -21,7 +21,7 @@ type TunDevice struct {
address wgaddr.Address
port int
key string
mtu int
mtu uint16
iceBind *bind.ICEBind
device *device.Device
@@ -30,7 +30,7 @@ type TunDevice struct {
configurer WGConfigurer
}
func NewTunDevice(name string, address wgaddr.Address, port int, key string, mtu int, iceBind *bind.ICEBind) *TunDevice {
func NewTunDevice(name string, address wgaddr.Address, port int, key string, mtu uint16, iceBind *bind.ICEBind) *TunDevice {
return &TunDevice{
name: name,
address: address,
@@ -42,7 +42,7 @@ func NewTunDevice(name string, address wgaddr.Address, port int, key string, mtu
}
func (t *TunDevice) Create() (WGConfigurer, error) {
tunDevice, err := tun.CreateTUN(t.name, t.mtu)
tunDevice, err := tun.CreateTUN(t.name, int(t.mtu))
if err != nil {
return nil, fmt.Errorf("error creating tun device: %s", err)
}
@@ -111,7 +111,7 @@ func (t *TunDevice) WgAddress() wgaddr.Address {
return t.address
}
func (t *TunDevice) MTU() int {
func (t *TunDevice) MTU() uint16 {
return t.mtu
}

6
client/iface/device/device_ios.go
View File

@@ -22,6 +22,7 @@ type TunDevice struct {
address wgaddr.Address
port int
key string
mtu uint16
iceBind *bind.ICEBind
tunFd int
@@ -31,12 +32,13 @@ type TunDevice struct {
configurer WGConfigurer
}
func NewTunDevice(name string, address wgaddr.Address, port int, key string, iceBind *bind.ICEBind, tunFd int) *TunDevice {
func NewTunDevice(name string, address wgaddr.Address, port int, key string, mtu uint16, iceBind *bind.ICEBind, tunFd int) *TunDevice {
return &TunDevice{
name: name,
address: address,
port: port,
key: key,
mtu: mtu,
iceBind: iceBind,
tunFd: tunFd,
}
@@ -125,7 +127,7 @@ func (t *TunDevice) WgAddress() wgaddr.Address {
return t.address
}
func (t *TunDevice) MTU() int {
func (t *TunDevice) MTU() uint16 {
return t.mtu
}

8
client/iface/device/device_kernel_unix.go
View File

@@ -23,7 +23,7 @@ type TunKernelDevice struct {
address wgaddr.Address
wgPort int
key string
mtu int
mtu uint16
ctx context.Context
ctxCancel context.CancelFunc
transportNet transport.Net
@@ -35,7 +35,7 @@ type TunKernelDevice struct {
filterFn bind.FilterFn
}
func NewKernelDevice(name string, address wgaddr.Address, wgPort int, key string, mtu int, transportNet transport.Net) *TunKernelDevice {
func NewKernelDevice(name string, address wgaddr.Address, wgPort int, key string, mtu uint16, transportNet transport.Net) *TunKernelDevice {
ctx, cancel := context.WithCancel(context.Background())
return &TunKernelDevice{
ctx: ctx,
@@ -65,7 +65,7 @@ func (t *TunKernelDevice) Create() (WGConfigurer, error) {
// TODO: do a MTU discovery
log.Debugf("setting MTU: %d interface: %s", t.mtu, t.name)
if err := link.setMTU(t.mtu); err != nil {
if err := link.setMTU(int(t.mtu)); err != nil {
return nil, fmt.Errorf("set mtu: %w", err)
}
@@ -152,7 +152,7 @@ func (t *TunKernelDevice) WgAddress() wgaddr.Address {
return t.address
}
func (t *TunKernelDevice) MTU() int {
func (t *TunKernelDevice) MTU() uint16 {
return t.mtu
}

8
client/iface/device/device_netstack.go
View File

@@ -22,7 +22,7 @@ type TunNetstackDevice struct {
address wgaddr.Address
port int
key string
mtu int
mtu uint16
listenAddress string
iceBind *bind.ICEBind
@@ -35,7 +35,7 @@ type TunNetstackDevice struct {
net *netstack.Net
}
func NewNetstackDevice(name string, address wgaddr.Address, wgPort int, key string, mtu int, iceBind *bind.ICEBind, listenAddress string) *TunNetstackDevice {
func NewNetstackDevice(name string, address wgaddr.Address, wgPort int, key string, mtu uint16, iceBind *bind.ICEBind, listenAddress string) *TunNetstackDevice {
return &TunNetstackDevice{
name: name,
address: address,
@@ -57,7 +57,7 @@ func (t *TunNetstackDevice) Create() (WGConfigurer, error) {
}
log.Debugf("netstack using address: %s", t.address.IP)
t.nsTun = nbnetstack.NewNetStackTun(t.listenAddress, t.address.IP, dnsAddr, t.mtu)
t.nsTun = nbnetstack.NewNetStackTun(t.listenAddress, t.address.IP, dnsAddr, int(t.mtu))
log.Debugf("netstack using dns address: %s", dnsAddr)
tunIface, net, err := t.nsTun.Create()
if err != nil {
@@ -125,7 +125,7 @@ func (t *TunNetstackDevice) WgAddress() wgaddr.Address {
return t.address
}
func (t *TunNetstackDevice) MTU() int {
func (t *TunNetstackDevice) MTU() uint16 {
return t.mtu
}

10
client/iface/device/device_usp_unix.go
View File

@@ -20,7 +20,7 @@ type USPDevice struct {
address wgaddr.Address
port int
key string
mtu int
mtu uint16
iceBind *bind.ICEBind
device *device.Device
@@ -29,7 +29,7 @@ type USPDevice struct {
configurer WGConfigurer
}
func NewUSPDevice(name string, address wgaddr.Address, port int, key string, mtu int, iceBind *bind.ICEBind) *USPDevice {
func NewUSPDevice(name string, address wgaddr.Address, port int, key string, mtu uint16, iceBind *bind.ICEBind) *USPDevice {
log.Infof("using userspace bind mode")
return &USPDevice{
@@ -44,9 +44,9 @@ func NewUSPDevice(name string, address wgaddr.Address, port int, key string, mtu
func (t *USPDevice) Create() (WGConfigurer, error) {
log.Info("create tun interface")
tunIface, err := tun.CreateTUN(t.name, t.mtu)
tunIface, err := tun.CreateTUN(t.name, int(t.mtu))
if err != nil {
log.Debugf("failed to create tun interface (%s, %d): %s", t.name, t.mtu, err)
log.Debugf("failed to create tun interface (%s, %d): %s", t.name, int(t.mtu), err)
return nil, fmt.Errorf("error creating tun device: %s", err)
}
t.filteredDevice = newDeviceFilter(tunIface)
@@ -118,7 +118,7 @@ func (t *USPDevice) WgAddress() wgaddr.Address {
return t.address
}
func (t *USPDevice) MTU() int {
func (t *USPDevice) MTU() uint16 {
return t.mtu
}

8
client/iface/device/device_windows.go
View File

@@ -23,7 +23,7 @@ type TunDevice struct {
address wgaddr.Address
port int
key string
mtu int
mtu uint16
iceBind *bind.ICEBind
device *device.Device
@@ -33,7 +33,7 @@ type TunDevice struct {
configurer WGConfigurer
}
func NewTunDevice(name string, address wgaddr.Address, port int, key string, mtu int, iceBind *bind.ICEBind) *TunDevice {
func NewTunDevice(name string, address wgaddr.Address, port int, key string, mtu uint16, iceBind *bind.ICEBind) *TunDevice {
return &TunDevice{
name: name,
address: address,
@@ -59,7 +59,7 @@ func (t *TunDevice) Create() (WGConfigurer, error) {
return nil, err
}
log.Info("create tun interface")
tunDevice, err := tun.CreateTUNWithRequestedGUID(t.name, &guid, t.mtu)
tunDevice, err := tun.CreateTUNWithRequestedGUID(t.name, &guid, int(t.mtu))
if err != nil {
return nil, fmt.Errorf("error creating tun device: %s", err)
}
@@ -144,7 +144,7 @@ func (t *TunDevice) WgAddress() wgaddr.Address {
return t.address
}
func (t *TunDevice) MTU() int {
func (t *TunDevice) MTU() uint16 {
return t.mtu
}

2
client/iface/device_android.go
View File

@@ -15,7 +15,7 @@ type WGTunDevice interface {
Up() (*bind.UniversalUDPMuxDefault, error)
UpdateAddr(address wgaddr.Address) error
WgAddress() wgaddr.Address
MTU() int
MTU() uint16
DeviceName() string
Close() error
FilteredDevice() *device.FilteredDevice

4
client/iface/iface.go
View File

@@ -47,7 +47,7 @@ type WGIFaceOpts struct {
Address string
WGPort int
WGPrivKey string
MTU int
MTU uint16
MobileArgs *device.MobileIFaceArguments
TransportNet transport.Net
FilterFn bind.FilterFn
@@ -84,7 +84,7 @@ func (w *WGIface) Address() wgaddr.Address {
return w.tun.WgAddress()
}
func (w *WGIface) MTU() int {
func (w *WGIface) MTU() uint16 {
return w.tun.MTU()
}

2
client/iface/iface_new_ios.go
View File

@@ -19,7 +19,7 @@ func NewWGIFace(opts WGIFaceOpts) (*WGIface, error) {
iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress, opts.MTU)
wgIFace := &WGIface{
tun: device.NewTunDevice(opts.IFaceName, wgAddress, opts.WGPort, opts.WGPrivKey, iceBind, opts.MobileArgs.TunFd),
tun: device.NewTunDevice(opts.IFaceName, wgAddress, opts.WGPort, opts.WGPrivKey, opts.MTU, iceBind, opts.MobileArgs.TunFd),
userspaceBind: true,
wgProxyFactory: wgproxy.NewUSPFactory(iceBind),
}

2
client/iface/wgproxy/bind/proxy.go
View File

@@ -12,8 +12,8 @@ import (
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/client/iface/bind"
"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
"github.com/netbirdio/netbird/client/iface/bufsize"
"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
)
type ProxyBind struct {

6
client/iface/wgproxy/ebpf/proxy.go
View File

@@ -17,10 +17,10 @@ import (
log "github.com/sirupsen/logrus"
nberrors "github.com/netbirdio/netbird/client/errors"
"github.com/netbirdio/netbird/client/iface/bufsize"
"github.com/netbirdio/netbird/client/internal/ebpf"
ebpfMgr "github.com/netbirdio/netbird/client/internal/ebpf/manager"
nbnet "github.com/netbirdio/netbird/util/net"
"github.com/netbirdio/netbird/client/iface/bufsize"
)
const (
@@ -30,7 +30,7 @@ const (
// WGEBPFProxy definition for proxy with EBPF support
type WGEBPFProxy struct {
localWGListenPort int
mtu int
mtu uint16
ebpfManager ebpfMgr.Manager
turnConnStore map[uint16]net.Conn
@@ -45,7 +45,7 @@ type WGEBPFProxy struct {
}
// NewWGEBPFProxy create new WGEBPFProxy instance
func NewWGEBPFProxy(wgPort int, mtu int) *WGEBPFProxy {
func NewWGEBPFProxy(wgPort int, mtu uint16) *WGEBPFProxy {
log.Debugf("instantiate ebpf proxy")
wgProxy := &WGEBPFProxy{
localWGListenPort: wgPort,

2
client/iface/wgproxy/ebpf/wrapper.go
View File

@@ -12,8 +12,8 @@ import (
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
"github.com/netbirdio/netbird/client/iface/bufsize"
"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
)
// ProxyWrapper help to keep the remoteConn instance for net.Conn.Close function call

4
client/iface/wgproxy/factory_kernel.go
View File

@@ -11,12 +11,12 @@ import (
type KernelFactory struct {
wgPort int
mtu int
mtu uint16
ebpfProxy *ebpf.WGEBPFProxy
}
func NewKernelFactory(wgPort int, mtu int) *KernelFactory {
func NewKernelFactory(wgPort int, mtu uint16) *KernelFactory {
f := &KernelFactory{
wgPort: wgPort,
mtu: mtu,

4
client/iface/wgproxy/factory_kernel_freebsd.go
View File

@@ -9,10 +9,10 @@ import (
// KernelFactory todo: check eBPF support on FreeBSD
type KernelFactory struct {
wgPort int
mtu int
mtu uint16
}
func NewKernelFactory(wgPort int, mtu int) *KernelFactory {
func NewKernelFactory(wgPort int, mtu uint16) *KernelFactory {
log.Infof("WireGuard Proxy Factory will produce UDP proxy")
f := &KernelFactory{
wgPort: wgPort,

2
client/iface/wgproxy/proxy_linux_test.go
View File

@@ -16,7 +16,7 @@ func TestProxyCloseByRemoteConnEBPF(t *testing.T) {
}
ctx := context.Background()
ebpfProxy := ebpf.NewWGEBPFProxy(51831)
ebpfProxy := ebpf.NewWGEBPFProxy(51831, 1280)
if err := ebpfProxy.Listen(); err != nil {
t.Fatalf("failed to initialize ebpf proxy: %s", err)
}

2
client/iface/wgproxy/proxy_test.go
View File

@@ -89,7 +89,7 @@ func TestProxyCloseByRemoteConn(t *testing.T) {
}
if runtime.GOOS == "linux" && os.Getenv("GITHUB_ACTIONS") != "true" {
ebpfProxy := ebpf.NewWGEBPFProxy(51831)
ebpfProxy := ebpf.NewWGEBPFProxy(51831, 1280)
if err := ebpfProxy.Listen(); err != nil {
t.Fatalf("failed to initialize ebpf proxy: %s", err)
}

7
client/iface/wgproxy/udp/proxy.go
View File

@@ -12,15 +12,14 @@ import (
log "github.com/sirupsen/logrus"
cerrors "github.com/netbirdio/netbird/client/errors"
"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
"github.com/netbirdio/netbird/client/iface/bufsize"
"github.com/netbirdio/netbird/client/iface/wgproxy/listener"
)
// WGUDPProxy proxies
type WGUDPProxy struct {
localWGListenPort int
mtu int
mtu uint16
remoteConn net.Conn
localConn net.Conn
@@ -37,7 +36,7 @@ type WGUDPProxy struct {
}
// NewWGUDPProxy instantiate a UDP based WireGuard proxy. This is not a thread safe implementation
func NewWGUDPProxy(wgPort int, mtu int) *WGUDPProxy {
func NewWGUDPProxy(wgPort int, mtu uint16) *WGUDPProxy {
log.Debugf("Initializing new user space proxy with port %d", wgPort)
p := &WGUDPProxy{
localWGListenPort: wgPort,

4
client/internal/config.go
View File

@@ -77,7 +77,7 @@ type ConfigInput struct {
LazyConnectionEnabled *bool
MTU *int
MTU *uint16
}
// Config Configuration type
@@ -145,7 +145,7 @@ type Config struct {
LazyConnectionEnabled bool
MTU int
MTU uint16
}
// ReadConfig read config file and return with Config. If it is not exists create a new with default values

6
client/internal/connect.go
View File

@@ -467,12 +467,12 @@ func createEngineConfig(key wgtypes.Key, config *Config, peerConfig *mgmProto.Pe
return engineConf, nil
}
func selectMTU(localMTU int, peerMTU int32) int {
finalMTU := iface.DefaultMTU
func selectMTU(localMTU uint16, peerMTU int32) uint16 {
var finalMTU uint16 = iface.DefaultMTU
if localMTU > 0 {
finalMTU = localMTU
} else if peerMTU > 0 {
finalMTU = int(peerMTU)
finalMTU = uint16(peerMTU)
}
// Set global DNS MTU

4
client/internal/dns/upstream.go
View File

@@ -25,9 +25,9 @@ import (
"github.com/netbirdio/netbird/client/proto"
)
var currentMTU = iface.DefaultMTU
var currentMTU uint16 = iface.DefaultMTU
func SetCurrentMTU(mtu int) {
func SetCurrentMTU(mtu uint16) {
currentMTU = mtu
}

2
client/internal/engine.go
View File

@@ -124,7 +124,7 @@ type EngineConfig struct {
LazyConnectionEnabled bool
MTU int
MTU uint16
}
// Engine is a mechanism responsible for reacting on Signal and Management stream events and managing connections to the remote peers.

2
client/server/server.go
View File

@@ -429,7 +429,7 @@ func (s *Server) Login(callerCtx context.Context, msg *proto.LoginRequest) (*pro
}
if msg.Mtu != nil {
mtu := int(*msg.Mtu)
mtu := uint16(*msg.Mtu)
inputConfig.MTU = &mtu
s.latestConfigInput.MTU = &mtu
}

6
client/ui/client_ui.go
View File

@@ -238,7 +238,7 @@ type serviceClient struct {
RosenpassPermissive bool
interfaceName string
interfacePort int
mtu int
mtu uint16
networkMonitor bool
disableDNS bool
disableClientRoutes bool
@@ -427,7 +427,7 @@ func (s *serviceClient) getSettingsForm() *widget.Form {
if s.managementURL != iMngURL || s.preSharedKey != s.iPreSharedKey.Text ||
s.adminURL != iAdminURL || s.RosenpassPermissive != s.sRosenpassPermissive.Checked ||
s.interfaceName != s.iInterfaceName.Text || s.interfacePort != int(port) ||
s.mtu != int(mtu) || s.networkMonitor != s.sNetworkMonitor.Checked ||
s.mtu != uint16(mtu) || s.networkMonitor != s.sNetworkMonitor.Checked ||
s.disableDNS != s.sDisableDNS.Checked ||
s.disableClientRoutes != s.sDisableClientRoutes.Checked ||
s.disableServerRoutes != s.sDisableServerRoutes.Checked ||
@@ -838,7 +838,7 @@ func (s *serviceClient) getSrvConfig() {
s.RosenpassPermissive = cfg.RosenpassPermissive
s.interfaceName = cfg.InterfaceName
s.interfacePort = int(cfg.WireguardPort)
s.mtu = int(cfg.Mtu)
s.mtu = uint16(cfg.Mtu)
s.networkMonitor = cfg.NetworkMonitor
s.disableDNS = cfg.DisableDns

5
sharedsock/example/main.go
View File

@@ -5,9 +5,10 @@ import (
"os"
"os/signal"
"github.com/netbirdio/netbird/sharedsock"
"github.com/netbirdio/netbird/client/iface"
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/client/iface"
"github.com/netbirdio/netbird/sharedsock"
)
func main() {

4
sharedsock/sock_linux.go
View File

@@ -36,7 +36,7 @@ type SharedSocket struct {
conn4 *socket.Conn
conn6 *socket.Conn
port int
mtu int
mtu uint16
routerMux sync.RWMutex
router routing.Router
packetDemux chan rcvdPacket
@@ -64,7 +64,7 @@ var writeSerializerOptions = gopacket.SerializeOptions{
const maxIPUDPOverhead = 68
// Listen creates an IPv4 and IPv6 raw sockets, starts a reader and routing table routines
func Listen(port int, filter BPFFilter, mtu int) (_ net.PacketConn, err error) {
func Listen(port int, filter BPFFilter, mtu uint16) (_ net.PacketConn, err error) {
ctx, cancel := context.WithCancel(context.Background())
rawSock := &SharedSocket{
ctx: ctx,

2
sharedsock/sock_nolinux.go
View File

@@ -9,6 +9,6 @@ import (
)
// Listen is not supported on other platforms then Linux
func Listen(port int, filter BPFFilter) (net.PacketConn, error) {
func Listen(port int, filter BPFFilter, mtu uint16) (net.PacketConn, error) {
return nil, fmt.Errorf("not supported OS %s. SharedSocket is only supported on Linux", runtime.GOOS)
}