From f063866ce8c62b27b00cf2098a68e89542f837f9 Mon Sep 17 00:00:00 2001 From: Viktor Liu <17948409+lixmal@users.noreply.github.com> Date: Tue, 26 Aug 2025 16:00:14 +0200 Subject: [PATCH] [client] Add flag to configure MTU (#4213) --- client/cmd/root.go | 2 + client/cmd/root_test.go | 1 + client/cmd/up.go | 21 + client/iface/bind/ice_bind.go | 9 +- client/iface/bind/udp_mux_ios.go | 2 +- client/iface/bind/udp_mux_universal.go | 4 +- client/iface/bufsize/bufsize.go | 9 + client/iface/device.go | 1 + client/iface/device/device_android.go | 10 +- client/iface/device/device_darwin.go | 10 +- client/iface/device/device_ios.go | 8 +- client/iface/device/device_kernel_unix.go | 13 +- client/iface/device/device_netstack.go | 10 +- client/iface/device/device_usp_unix.go | 12 +- client/iface/device/device_windows.go | 10 +- client/iface/device_android.go | 1 + client/iface/iface.go | 19 +- client/iface/iface_new_android.go | 2 +- client/iface/iface_new_darwin.go | 2 +- client/iface/iface_new_ios.go | 4 +- client/iface/iface_new_unix.go | 6 +- client/iface/iface_new_windows.go | 2 +- client/iface/wgproxy/bind/proxy.go | 3 +- client/iface/wgproxy/ebpf/proxy.go | 7 +- client/iface/wgproxy/ebpf/proxy_test.go | 6 +- client/iface/wgproxy/ebpf/wrapper.go | 3 +- client/iface/wgproxy/factory_kernel.go | 8 +- .../iface/wgproxy/factory_kernel_freebsd.go | 6 +- client/iface/wgproxy/proxy_linux_test.go | 2 +- client/iface/wgproxy/proxy_test.go | 4 +- client/iface/wgproxy/udp/proxy.go | 9 +- client/internal/connect.go | 35 +- client/internal/dns/upstream.go | 10 +- client/internal/engine.go | 8 +- client/internal/engine_test.go | 21 +- client/internal/profilemanager/config.go | 14 + .../systemops/systemops_windows.go | 2 +- client/proto/daemon.pb.go | 45 +- client/proto/daemon.proto | 33 +- client/server/server.go | 7 + client/ui/client_ui.go | 39 +- relay/test/benchmark_test.go | 7 +- relay/testec2/relay.go | 5 +- shared/management/proto/management.pb.go | 590 +++++++++--------- shared/management/proto/management.proto | 2 + shared/relay/client/client.go | 17 +- shared/relay/client/client_test.go | 39 +- shared/relay/client/manager.go | 8 +- shared/relay/client/manager_test.go | 23 +- shared/relay/client/picker.go | 3 +- sharedsock/example/main.go | 6 +- sharedsock/sock_linux.go | 14 +- sharedsock/sock_linux_test.go | 8 +- sharedsock/sock_nolinux.go | 2 +- 54 files changed, 710 insertions(+), 434 deletions(-) create mode 100644 client/iface/bufsize/bufsize.go diff --git a/client/cmd/root.go b/client/cmd/root.go index 8aa0d7c89..5084bd38a 100644 --- a/client/cmd/root.go +++ b/client/cmd/root.go @@ -39,6 +39,7 @@ const ( extraIFaceBlackListFlag = "extra-iface-blacklist" dnsRouteIntervalFlag = "dns-router-interval" enableLazyConnectionFlag = "enable-lazy-connection" + mtuFlag = "mtu" ) var ( @@ -72,6 +73,7 @@ var ( anonymizeFlag bool dnsRouteInterval time.Duration lazyConnEnabled bool + mtu uint16 profilesDisabled bool updateSettingsDisabled bool diff --git a/client/cmd/root_test.go b/client/cmd/root_test.go index 844eea853..ce95786dd 100644 --- a/client/cmd/root_test.go +++ b/client/cmd/root_test.go @@ -54,6 +54,7 @@ func TestSetFlagsFromEnvVars(t *testing.T) { cmd.PersistentFlags().StringVar(&interfaceName, interfaceNameFlag, iface.WgInterfaceDefault, "WireGuard interface name") cmd.PersistentFlags().BoolVar(&rosenpassEnabled, enableRosenpassFlag, false, "Enable Rosenpass feature Rosenpass.") cmd.PersistentFlags().Uint16Var(&wireguardPort, wireguardPortFlag, iface.DefaultWgPort, "WireGuard interface listening port") + cmd.PersistentFlags().Uint16Var(&mtu, mtuFlag, iface.DefaultMTU, "Set MTU (Maximum Transmission Unit) for the WireGuard interface") t.Setenv("NB_EXTERNAL_IP_MAP", "abc,dec") t.Setenv("NB_INTERFACE_NAME", "test-name") diff --git a/client/cmd/up.go b/client/cmd/up.go index 1fa58e6ed..e686625d6 100644 --- a/client/cmd/up.go +++ b/client/cmd/up.go @@ -63,6 +63,7 @@ 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().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.`, @@ -357,6 +358,11 @@ func setupSetConfigReq(customDNSAddressConverted []byte, cmd *cobra.Command, pro req.WireguardPort = &p } + if cmd.Flag(mtuFlag).Changed { + m := int64(mtu) + req.Mtu = &m + } + if cmd.Flag(networkMonitorFlag).Changed { req.NetworkMonitor = &networkMonitor } @@ -436,6 +442,13 @@ func setupConfig(customDNSAddressConverted []byte, cmd *cobra.Command, configFil ic.WireguardPort = &p } + if cmd.Flag(mtuFlag).Changed { + if err := iface.ValidateMTU(mtu); err != nil { + return nil, err + } + ic.MTU = &mtu + } + if cmd.Flag(networkMonitorFlag).Changed { ic.NetworkMonitor = &networkMonitor } @@ -533,6 +546,14 @@ func setupLoginRequest(providedSetupKey string, customDNSAddressConverted []byte loginRequest.WireguardPort = &wp } + if cmd.Flag(mtuFlag).Changed { + if err := iface.ValidateMTU(mtu); err != nil { + return nil, err + } + m := int64(mtu) + loginRequest.Mtu = &m + } + if cmd.Flag(networkMonitorFlag).Changed { loginRequest.NetworkMonitor = &networkMonitor } diff --git a/client/iface/bind/ice_bind.go b/client/iface/bind/ice_bind.go index 41f4aec6d..f23be406e 100644 --- a/client/iface/bind/ice_bind.go +++ b/client/iface/bind/ice_bind.go @@ -56,10 +56,11 @@ type ICEBind struct { muUDPMux sync.Mutex udpMux *UniversalUDPMuxDefault address wgaddr.Address + mtu uint16 activityRecorder *ActivityRecorder } -func NewICEBind(transportNet transport.Net, filterFn FilterFn, address wgaddr.Address) *ICEBind { +func NewICEBind(transportNet transport.Net, filterFn FilterFn, address wgaddr.Address, mtu uint16) *ICEBind { b, _ := wgConn.NewStdNetBind().(*wgConn.StdNetBind) ib := &ICEBind{ StdNetBind: b, @@ -69,6 +70,7 @@ func NewICEBind(transportNet transport.Net, filterFn FilterFn, address wgaddr.Ad endpoints: make(map[netip.Addr]net.Conn), closedChan: make(chan struct{}), closed: true, + mtu: mtu, address: address, activityRecorder: NewActivityRecorder(), } @@ -80,6 +82,10 @@ func NewICEBind(transportNet transport.Net, filterFn FilterFn, address wgaddr.Ad return ib } +func (s *ICEBind) MTU() uint16 { + return s.mtu +} + func (s *ICEBind) Open(uport uint16) ([]wgConn.ReceiveFunc, uint16, error) { s.closed = false s.closedChanMu.Lock() @@ -158,6 +164,7 @@ func (s *ICEBind) createIPv4ReceiverFn(pc *ipv4.PacketConn, conn *net.UDPConn, r Net: s.transportNet, FilterFn: s.filterFn, WGAddress: s.address, + MTU: s.mtu, }, ) return func(bufs [][]byte, sizes []int, eps []wgConn.Endpoint) (n int, err error) { diff --git a/client/iface/bind/udp_mux_ios.go b/client/iface/bind/udp_mux_ios.go index 15e26d02f..db0249d11 100644 --- a/client/iface/bind/udp_mux_ios.go +++ b/client/iface/bind/udp_mux_ios.go @@ -4,4 +4,4 @@ package bind func (m *UDPMuxDefault) notifyAddressRemoval(addr string) { // iOS doesn't support nbnet hooks, so this is a no-op -} \ No newline at end of file +} diff --git a/client/iface/bind/udp_mux_universal.go b/client/iface/bind/udp_mux_universal.go index b755a7827..b06da6712 100644 --- a/client/iface/bind/udp_mux_universal.go +++ b/client/iface/bind/udp_mux_universal.go @@ -18,6 +18,7 @@ import ( "github.com/pion/stun/v2" "github.com/pion/transport/v3" + "github.com/netbirdio/netbird/client/iface/bufsize" "github.com/netbirdio/netbird/client/iface/wgaddr" ) @@ -44,6 +45,7 @@ type UniversalUDPMuxParams struct { Net transport.Net FilterFn FilterFn WGAddress wgaddr.Address + MTU uint16 } // NewUniversalUDPMuxDefault creates an implementation of UniversalUDPMux embedding UDPMux @@ -84,7 +86,7 @@ func NewUniversalUDPMuxDefault(params UniversalUDPMuxParams) *UniversalUDPMuxDef // just ignore other packets printing an warning message. // It is a blocking method, consider running in a go routine. func (m *UniversalUDPMuxDefault) ReadFromConn(ctx context.Context) { - buf := make([]byte, 1500) + buf := make([]byte, m.params.MTU+bufsize.WGBufferOverhead) for { select { case <-ctx.Done(): diff --git a/client/iface/bufsize/bufsize.go b/client/iface/bufsize/bufsize.go new file mode 100644 index 000000000..0d2afb77d --- /dev/null +++ b/client/iface/bufsize/bufsize.go @@ -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 +) diff --git a/client/iface/device.go b/client/iface/device.go index 81f2e0f47..ca6dda2c2 100644 --- a/client/iface/device.go +++ b/client/iface/device.go @@ -17,6 +17,7 @@ type WGTunDevice interface { Up() (*bind.UniversalUDPMuxDefault, error) UpdateAddr(address wgaddr.Address) error WgAddress() wgaddr.Address + MTU() uint16 DeviceName() string Close() error FilteredDevice() *device.FilteredDevice diff --git a/client/iface/device/device_android.go b/client/iface/device/device_android.go index 4fe6e466b..fe3b9f82e 100644 --- a/client/iface/device/device_android.go +++ b/client/iface/device/device_android.go @@ -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 @@ -137,6 +137,10 @@ func (t *WGTunDevice) WgAddress() wgaddr.Address { return t.address } +func (t *WGTunDevice) MTU() uint16 { + return t.mtu +} + func (t *WGTunDevice) FilteredDevice() *FilteredDevice { return t.filteredDevice } diff --git a/client/iface/device/device_darwin.go b/client/iface/device/device_darwin.go index 81de0e360..cce9d42df 100644 --- a/client/iface/device/device_darwin.go +++ b/client/iface/device/device_darwin.go @@ -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) } @@ -111,6 +111,10 @@ func (t *TunDevice) WgAddress() wgaddr.Address { return t.address } +func (t *TunDevice) MTU() uint16 { + return t.mtu +} + func (t *TunDevice) DeviceName() string { return t.name } diff --git a/client/iface/device/device_ios.go b/client/iface/device/device_ios.go index 4613762c3..168985b5e 100644 --- a/client/iface/device/device_ios.go +++ b/client/iface/device/device_ios.go @@ -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, } @@ -125,6 +127,10 @@ func (t *TunDevice) WgAddress() wgaddr.Address { return t.address } +func (t *TunDevice) MTU() uint16 { + return t.mtu +} + func (t *TunDevice) UpdateAddr(_ wgaddr.Address) error { // todo implement return nil diff --git a/client/iface/device/device_kernel_unix.go b/client/iface/device/device_kernel_unix.go index 7136be0bc..00a72bcc6 100644 --- a/client/iface/device/device_kernel_unix.go +++ b/client/iface/device/device_kernel_unix.go @@ -24,7 +24,7 @@ type TunKernelDevice struct { address wgaddr.Address wgPort int key string - mtu int + mtu uint16 ctx context.Context ctxCancel context.CancelFunc transportNet transport.Net @@ -36,7 +36,7 @@ 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, @@ -66,7 +66,7 @@ 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) } @@ -96,7 +96,7 @@ func (t *TunKernelDevice) Up() (*bind.UniversalUDPMuxDefault, error) { return nil, err } - rawSock, err := sharedsock.Listen(t.wgPort, sharedsock.NewIncomingSTUNFilter()) + rawSock, err := sharedsock.Listen(t.wgPort, sharedsock.NewIncomingSTUNFilter(), t.mtu) if err != nil { return nil, err } @@ -111,6 +111,7 @@ func (t *TunKernelDevice) Up() (*bind.UniversalUDPMuxDefault, error) { Net: t.transportNet, FilterFn: t.filterFn, WGAddress: t.address, + MTU: t.mtu, } mux := bind.NewUniversalUDPMuxDefault(bindParams) go mux.ReadFromConn(t.ctx) @@ -158,6 +159,10 @@ func (t *TunKernelDevice) WgAddress() wgaddr.Address { return t.address } +func (t *TunKernelDevice) MTU() uint16 { + return t.mtu +} + func (t *TunKernelDevice) DeviceName() string { return t.name } diff --git a/client/iface/device/device_netstack.go b/client/iface/device/device_netstack.go index 025715b98..f41331ff7 100644 --- a/client/iface/device/device_netstack.go +++ b/client/iface/device/device_netstack.go @@ -19,7 +19,7 @@ type TunNetstackDevice struct { address wgaddr.Address port int key string - mtu int + mtu uint16 listenAddress string iceBind *bind.ICEBind @@ -32,7 +32,7 @@ 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, @@ -54,7 +54,7 @@ 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 { @@ -122,6 +122,10 @@ func (t *TunNetstackDevice) WgAddress() wgaddr.Address { return t.address } +func (t *TunNetstackDevice) MTU() uint16 { + return t.mtu +} + func (t *TunNetstackDevice) DeviceName() string { return t.name } diff --git a/client/iface/device/device_usp_unix.go b/client/iface/device/device_usp_unix.go index e781f6004..8d30112ae 100644 --- a/client/iface/device/device_usp_unix.go +++ b/client/iface/device/device_usp_unix.go @@ -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) @@ -118,6 +118,10 @@ func (t *USPDevice) WgAddress() wgaddr.Address { return t.address } +func (t *USPDevice) MTU() uint16 { + return t.mtu +} + func (t *USPDevice) DeviceName() string { return t.name } diff --git a/client/iface/device/device_windows.go b/client/iface/device/device_windows.go index 0316c4b8d..de258868f 100644 --- a/client/iface/device/device_windows.go +++ b/client/iface/device/device_windows.go @@ -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) } @@ -144,6 +144,10 @@ func (t *TunDevice) WgAddress() wgaddr.Address { return t.address } +func (t *TunDevice) MTU() uint16 { + return t.mtu +} + func (t *TunDevice) DeviceName() string { return t.name } diff --git a/client/iface/device_android.go b/client/iface/device_android.go index a1e246fc5..39b5c28ae 100644 --- a/client/iface/device_android.go +++ b/client/iface/device_android.go @@ -15,6 +15,7 @@ type WGTunDevice interface { Up() (*bind.UniversalUDPMuxDefault, error) UpdateAddr(address wgaddr.Address) error WgAddress() wgaddr.Address + MTU() uint16 DeviceName() string Close() error FilteredDevice() *device.FilteredDevice diff --git a/client/iface/iface.go b/client/iface/iface.go index 0e41f8e64..9a42223a1 100644 --- a/client/iface/iface.go +++ b/client/iface/iface.go @@ -26,6 +26,8 @@ import ( const ( DefaultMTU = 1280 + MinMTU = 576 + MaxMTU = 8192 DefaultWgPort = 51820 WgInterfaceDefault = configurer.WgInterfaceDefault ) @@ -35,6 +37,17 @@ var ( ErrIfaceNotFound = fmt.Errorf("wireguard interface not found") ) +// ValidateMTU validates that MTU is within acceptable range +func ValidateMTU(mtu uint16) error { + if mtu < MinMTU { + return fmt.Errorf("MTU %d below minimum (%d bytes)", mtu, MinMTU) + } + if mtu > MaxMTU { + return fmt.Errorf("MTU %d exceeds maximum supported size (%d bytes)", mtu, MaxMTU) + } + return nil +} + type wgProxyFactory interface { GetProxy() wgproxy.Proxy Free() error @@ -45,7 +58,7 @@ type WGIFaceOpts struct { Address string WGPort int WGPrivKey string - MTU int + MTU uint16 MobileArgs *device.MobileIFaceArguments TransportNet transport.Net FilterFn bind.FilterFn @@ -82,6 +95,10 @@ func (w *WGIface) Address() wgaddr.Address { return w.tun.WgAddress() } +func (w *WGIface) MTU() uint16 { + return w.tun.MTU() +} + // ToInterface returns the net.Interface for the Wireguard interface func (r *WGIface) ToInterface() *net.Interface { name := r.tun.DeviceName() diff --git a/client/iface/iface_new_android.go b/client/iface/iface_new_android.go index 132c64723..26952f48d 100644 --- a/client/iface/iface_new_android.go +++ b/client/iface/iface_new_android.go @@ -15,7 +15,7 @@ func NewWGIFace(opts WGIFaceOpts) (*WGIface, error) { return nil, err } - iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress) + iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress, opts.MTU) if netstack.IsEnabled() { wgIFace := &WGIface{ diff --git a/client/iface/iface_new_darwin.go b/client/iface/iface_new_darwin.go index 93fd7fd5c..7dd74d571 100644 --- a/client/iface/iface_new_darwin.go +++ b/client/iface/iface_new_darwin.go @@ -17,7 +17,7 @@ func NewWGIFace(opts WGIFaceOpts) (*WGIface, error) { return nil, err } - iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress) + iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress, opts.MTU) var tun WGTunDevice if netstack.IsEnabled() { diff --git a/client/iface/iface_new_ios.go b/client/iface/iface_new_ios.go index 317ee0f46..06ccf0be1 100644 --- a/client/iface/iface_new_ios.go +++ b/client/iface/iface_new_ios.go @@ -16,10 +16,10 @@ func NewWGIFace(opts WGIFaceOpts) (*WGIface, error) { return nil, err } - iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress) + 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), } diff --git a/client/iface/iface_new_unix.go b/client/iface/iface_new_unix.go index 23ee7236f..493144f13 100644 --- a/client/iface/iface_new_unix.go +++ b/client/iface/iface_new_unix.go @@ -22,7 +22,7 @@ func NewWGIFace(opts WGIFaceOpts) (*WGIface, error) { wgIFace := &WGIface{} if netstack.IsEnabled() { - iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress) + iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress, opts.MTU) wgIFace.tun = device.NewNetstackDevice(opts.IFaceName, wgAddress, opts.WGPort, opts.WGPrivKey, opts.MTU, iceBind, netstack.ListenAddr()) wgIFace.userspaceBind = true wgIFace.wgProxyFactory = wgproxy.NewUSPFactory(iceBind) @@ -31,11 +31,11 @@ func NewWGIFace(opts WGIFaceOpts) (*WGIface, error) { if device.WireGuardModuleIsLoaded() { wgIFace.tun = device.NewKernelDevice(opts.IFaceName, wgAddress, opts.WGPort, opts.WGPrivKey, opts.MTU, opts.TransportNet) - wgIFace.wgProxyFactory = wgproxy.NewKernelFactory(opts.WGPort) + wgIFace.wgProxyFactory = wgproxy.NewKernelFactory(opts.WGPort, opts.MTU) return wgIFace, nil } if device.ModuleTunIsLoaded() { - iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress) + iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress, opts.MTU) wgIFace.tun = device.NewUSPDevice(opts.IFaceName, wgAddress, opts.WGPort, opts.WGPrivKey, opts.MTU, iceBind) wgIFace.userspaceBind = true wgIFace.wgProxyFactory = wgproxy.NewUSPFactory(iceBind) diff --git a/client/iface/iface_new_windows.go b/client/iface/iface_new_windows.go index 413062940..349c5b33b 100644 --- a/client/iface/iface_new_windows.go +++ b/client/iface/iface_new_windows.go @@ -14,7 +14,7 @@ func NewWGIFace(opts WGIFaceOpts) (*WGIface, error) { if err != nil { return nil, err } - iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress) + iceBind := bind.NewICEBind(opts.TransportNet, opts.FilterFn, wgAddress, opts.MTU) var tun WGTunDevice if netstack.IsEnabled() { diff --git a/client/iface/wgproxy/bind/proxy.go b/client/iface/wgproxy/bind/proxy.go index f68e84810..bf6da72c2 100644 --- a/client/iface/wgproxy/bind/proxy.go +++ b/client/iface/wgproxy/bind/proxy.go @@ -12,6 +12,7 @@ import ( log "github.com/sirupsen/logrus" "github.com/netbirdio/netbird/client/iface/bind" + "github.com/netbirdio/netbird/client/iface/bufsize" "github.com/netbirdio/netbird/client/iface/wgproxy/listener" ) @@ -135,7 +136,7 @@ func (p *ProxyBind) proxyToLocal(ctx context.Context) { }() for { - buf := make([]byte, 1500) + buf := make([]byte, p.Bind.MTU()+bufsize.WGBufferOverhead) n, err := p.remoteConn.Read(buf) if err != nil { if ctx.Err() != nil { diff --git a/client/iface/wgproxy/ebpf/proxy.go b/client/iface/wgproxy/ebpf/proxy.go index e21fc35d4..fcdc0189d 100644 --- a/client/iface/wgproxy/ebpf/proxy.go +++ b/client/iface/wgproxy/ebpf/proxy.go @@ -17,6 +17,7 @@ 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" @@ -29,6 +30,7 @@ const ( // WGEBPFProxy definition for proxy with EBPF support type WGEBPFProxy struct { localWGListenPort int + mtu uint16 ebpfManager ebpfMgr.Manager turnConnStore map[uint16]net.Conn @@ -43,10 +45,11 @@ type WGEBPFProxy struct { } // NewWGEBPFProxy create new WGEBPFProxy instance -func NewWGEBPFProxy(wgPort int) *WGEBPFProxy { +func NewWGEBPFProxy(wgPort int, mtu uint16) *WGEBPFProxy { log.Debugf("instantiate ebpf proxy") wgProxy := &WGEBPFProxy{ localWGListenPort: wgPort, + mtu: mtu, ebpfManager: ebpf.GetEbpfManagerInstance(), turnConnStore: make(map[uint16]net.Conn), } @@ -138,7 +141,7 @@ func (p *WGEBPFProxy) Free() error { // proxyToRemote read messages from local WireGuard interface and forward it to remote conn // From this go routine has only one instance. func (p *WGEBPFProxy) proxyToRemote() { - buf := make([]byte, 1500) + buf := make([]byte, p.mtu+bufsize.WGBufferOverhead) for p.ctx.Err() == nil { if err := p.readAndForwardPacket(buf); err != nil { if p.ctx.Err() != nil { diff --git a/client/iface/wgproxy/ebpf/proxy_test.go b/client/iface/wgproxy/ebpf/proxy_test.go index b15bc686c..3ec4f0eba 100644 --- a/client/iface/wgproxy/ebpf/proxy_test.go +++ b/client/iface/wgproxy/ebpf/proxy_test.go @@ -7,7 +7,7 @@ import ( ) func TestWGEBPFProxy_connStore(t *testing.T) { - wgProxy := NewWGEBPFProxy(1) + wgProxy := NewWGEBPFProxy(1, 1280) p, _ := wgProxy.storeTurnConn(nil) if p != 1 { @@ -27,7 +27,7 @@ func TestWGEBPFProxy_connStore(t *testing.T) { } func TestWGEBPFProxy_portCalculation_overflow(t *testing.T) { - wgProxy := NewWGEBPFProxy(1) + wgProxy := NewWGEBPFProxy(1, 1280) _, _ = wgProxy.storeTurnConn(nil) wgProxy.lastUsedPort = 65535 @@ -43,7 +43,7 @@ func TestWGEBPFProxy_portCalculation_overflow(t *testing.T) { } func TestWGEBPFProxy_portCalculation_maxConn(t *testing.T) { - wgProxy := NewWGEBPFProxy(1) + wgProxy := NewWGEBPFProxy(1, 1280) for i := 0; i < 65535; i++ { _, _ = wgProxy.storeTurnConn(nil) diff --git a/client/iface/wgproxy/ebpf/wrapper.go b/client/iface/wgproxy/ebpf/wrapper.go index b25dc4198..3d71b01bd 100644 --- a/client/iface/wgproxy/ebpf/wrapper.go +++ b/client/iface/wgproxy/ebpf/wrapper.go @@ -12,6 +12,7 @@ import ( log "github.com/sirupsen/logrus" + "github.com/netbirdio/netbird/client/iface/bufsize" "github.com/netbirdio/netbird/client/iface/wgproxy/listener" ) @@ -103,7 +104,7 @@ func (e *ProxyWrapper) CloseConn() error { func (p *ProxyWrapper) proxyToLocal(ctx context.Context) { defer p.WgeBPFProxy.removeTurnConn(uint16(p.wgEndpointAddr.Port)) - buf := make([]byte, 1500) + buf := make([]byte, p.WgeBPFProxy.mtu+bufsize.WGBufferOverhead) for { n, err := p.readFromRemote(ctx, buf) if err != nil { diff --git a/client/iface/wgproxy/factory_kernel.go b/client/iface/wgproxy/factory_kernel.go index e62cd97be..63bc2ed24 100644 --- a/client/iface/wgproxy/factory_kernel.go +++ b/client/iface/wgproxy/factory_kernel.go @@ -11,16 +11,18 @@ import ( type KernelFactory struct { wgPort int + mtu uint16 ebpfProxy *ebpf.WGEBPFProxy } -func NewKernelFactory(wgPort int) *KernelFactory { +func NewKernelFactory(wgPort int, mtu uint16) *KernelFactory { f := &KernelFactory{ wgPort: wgPort, + mtu: mtu, } - ebpfProxy := ebpf.NewWGEBPFProxy(wgPort) + ebpfProxy := ebpf.NewWGEBPFProxy(wgPort, mtu) if err := ebpfProxy.Listen(); err != nil { log.Infof("WireGuard Proxy Factory will produce UDP proxy") log.Warnf("failed to initialize ebpf proxy, fallback to user space proxy: %s", err) @@ -33,7 +35,7 @@ func NewKernelFactory(wgPort int) *KernelFactory { func (w *KernelFactory) GetProxy() Proxy { if w.ebpfProxy == nil { - return udpProxy.NewWGUDPProxy(w.wgPort) + return udpProxy.NewWGUDPProxy(w.wgPort, w.mtu) } return ebpf.NewProxyWrapper(w.ebpfProxy) diff --git a/client/iface/wgproxy/factory_kernel_freebsd.go b/client/iface/wgproxy/factory_kernel_freebsd.go index 736944229..039f1cd3a 100644 --- a/client/iface/wgproxy/factory_kernel_freebsd.go +++ b/client/iface/wgproxy/factory_kernel_freebsd.go @@ -9,19 +9,21 @@ import ( // KernelFactory todo: check eBPF support on FreeBSD type KernelFactory struct { wgPort int + mtu uint16 } -func NewKernelFactory(wgPort int) *KernelFactory { +func NewKernelFactory(wgPort int, mtu uint16) *KernelFactory { log.Infof("WireGuard Proxy Factory will produce UDP proxy") f := &KernelFactory{ wgPort: wgPort, + mtu: mtu, } return f } func (w *KernelFactory) GetProxy() Proxy { - return udpProxy.NewWGUDPProxy(w.wgPort) + return udpProxy.NewWGUDPProxy(w.wgPort, w.mtu) } func (w *KernelFactory) Free() error { diff --git a/client/iface/wgproxy/proxy_linux_test.go b/client/iface/wgproxy/proxy_linux_test.go index 298c98cc0..5add503e1 100644 --- a/client/iface/wgproxy/proxy_linux_test.go +++ b/client/iface/wgproxy/proxy_linux_test.go @@ -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) } diff --git a/client/iface/wgproxy/proxy_test.go b/client/iface/wgproxy/proxy_test.go index 6882f9ea2..76e5ed6f7 100644 --- a/client/iface/wgproxy/proxy_test.go +++ b/client/iface/wgproxy/proxy_test.go @@ -84,12 +84,12 @@ func TestProxyCloseByRemoteConn(t *testing.T) { }{ { name: "userspace proxy", - proxy: udpProxy.NewWGUDPProxy(51830), + proxy: udpProxy.NewWGUDPProxy(51830, 1280), }, } 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) } diff --git a/client/iface/wgproxy/udp/proxy.go b/client/iface/wgproxy/udp/proxy.go index 139ccd4ed..be65e2b27 100644 --- a/client/iface/wgproxy/udp/proxy.go +++ b/client/iface/wgproxy/udp/proxy.go @@ -12,12 +12,14 @@ import ( log "github.com/sirupsen/logrus" cerrors "github.com/netbirdio/netbird/client/errors" + "github.com/netbirdio/netbird/client/iface/bufsize" "github.com/netbirdio/netbird/client/iface/wgproxy/listener" ) // WGUDPProxy proxies type WGUDPProxy struct { localWGListenPort int + mtu uint16 remoteConn net.Conn localConn net.Conn @@ -34,10 +36,11 @@ type WGUDPProxy struct { } // NewWGUDPProxy instantiate a UDP based WireGuard proxy. This is not a thread safe implementation -func NewWGUDPProxy(wgPort int) *WGUDPProxy { +func NewWGUDPProxy(wgPort int, mtu uint16) *WGUDPProxy { log.Debugf("Initializing new user space proxy with port %d", wgPort) p := &WGUDPProxy{ localWGListenPort: wgPort, + mtu: mtu, closeListener: listener.NewCloseListener(), } return p @@ -144,7 +147,7 @@ func (p *WGUDPProxy) proxyToRemote(ctx context.Context) { } }() - buf := make([]byte, 1500) + buf := make([]byte, p.mtu+bufsize.WGBufferOverhead) for ctx.Err() == nil { n, err := p.localConn.Read(buf) if err != nil { @@ -179,7 +182,7 @@ func (p *WGUDPProxy) proxyToLocal(ctx context.Context) { } }() - buf := make([]byte, 1500) + buf := make([]byte, p.mtu+bufsize.WGBufferOverhead) for { n, err := p.remoteConnRead(ctx, buf) if err != nil { diff --git a/client/internal/connect.go b/client/internal/connect.go index 523dcaf1f..c2b7db0e2 100644 --- a/client/internal/connect.go +++ b/client/internal/connect.go @@ -18,6 +18,7 @@ import ( "google.golang.org/grpc/codes" gstatus "google.golang.org/grpc/status" + "github.com/netbirdio/netbird/client/iface" "github.com/netbirdio/netbird/client/iface/device" "github.com/netbirdio/netbird/client/internal/dns" "github.com/netbirdio/netbird/client/internal/listener" @@ -244,7 +245,15 @@ func (c *ConnectClient) run(mobileDependency MobileDependency, runningChan chan c.statusRecorder.MarkSignalConnected() relayURLs, token := parseRelayInfo(loginResp) - relayManager := relayClient.NewManager(engineCtx, relayURLs, myPrivateKey.PublicKey().String()) + peerConfig := loginResp.GetPeerConfig() + + engineConfig, err := createEngineConfig(myPrivateKey, c.config, peerConfig) + if err != nil { + log.Error(err) + return wrapErr(err) + } + + relayManager := relayClient.NewManager(engineCtx, relayURLs, myPrivateKey.PublicKey().String(), engineConfig.MTU) c.statusRecorder.SetRelayMgr(relayManager) if len(relayURLs) > 0 { if token != nil { @@ -259,14 +268,6 @@ func (c *ConnectClient) run(mobileDependency MobileDependency, runningChan chan } } - peerConfig := loginResp.GetPeerConfig() - - engineConfig, err := createEngineConfig(myPrivateKey, c.config, peerConfig) - if err != nil { - log.Error(err) - return wrapErr(err) - } - checks := loginResp.GetChecks() c.engineMutex.Lock() @@ -444,6 +445,8 @@ func createEngineConfig(key wgtypes.Key, config *profilemanager.Config, peerConf BlockInbound: config.BlockInbound, LazyConnectionEnabled: config.LazyConnectionEnabled, + + MTU: selectMTU(config.MTU, peerConfig.Mtu), } if config.PreSharedKey != "" { @@ -466,6 +469,20 @@ func createEngineConfig(key wgtypes.Key, config *profilemanager.Config, peerConf return engineConf, nil } +func selectMTU(localMTU uint16, peerMTU int32) uint16 { + var finalMTU uint16 = iface.DefaultMTU + if localMTU > 0 { + finalMTU = localMTU + } else if peerMTU > 0 { + finalMTU = uint16(peerMTU) + } + + // Set global DNS MTU + dns.SetCurrentMTU(finalMTU) + + return finalMTU +} + // connectToSignal creates Signal Service client and established a connection func connectToSignal(ctx context.Context, wtConfig *mgmProto.NetbirdConfig, ourPrivateKey wgtypes.Key) (*signal.GrpcClient, error) { var sigTLSEnabled bool diff --git a/client/internal/dns/upstream.go b/client/internal/dns/upstream.go index f5d0e775f..071e3617a 100644 --- a/client/internal/dns/upstream.go +++ b/client/internal/dns/upstream.go @@ -26,6 +26,12 @@ import ( "github.com/netbirdio/netbird/client/proto" ) +var currentMTU uint16 = iface.DefaultMTU + +func SetCurrentMTU(mtu uint16) { + currentMTU = mtu +} + const ( UpstreamTimeout = 15 * time.Second @@ -358,8 +364,8 @@ func (u *upstreamResolverBase) testNameserver(server netip.AddrPort, timeout tim // If the passed context is nil, this will use Exchange instead of ExchangeContext. func ExchangeWithFallback(ctx context.Context, client *dns.Client, r *dns.Msg, upstream string) (*dns.Msg, time.Duration, error) { // MTU - ip + udp headers - // Note: this could be sent out on an interface that is not ours, but our MTU should always be lower. - client.UDPSize = iface.DefaultMTU - (60 + 8) + // Note: this could be sent out on an interface that is not ours, but higher MTU settings could break truncation handling. + client.UDPSize = uint16(currentMTU - (60 + 8)) var ( rm *dns.Msg diff --git a/client/internal/engine.go b/client/internal/engine.go index 2f1d3c560..c1c67207b 100644 --- a/client/internal/engine.go +++ b/client/internal/engine.go @@ -125,6 +125,8 @@ type EngineConfig struct { BlockInbound bool LazyConnectionEnabled bool + + MTU uint16 } // Engine is a mechanism responsible for reacting on Signal and Management stream events and managing connections to the remote peers. @@ -347,6 +349,10 @@ func (e *Engine) Start() error { e.syncMsgMux.Lock() defer e.syncMsgMux.Unlock() + if err := iface.ValidateMTU(e.config.MTU); err != nil { + return fmt.Errorf("invalid MTU configuration: %w", err) + } + if e.cancel != nil { e.cancel() } @@ -1492,7 +1498,7 @@ func (e *Engine) newWgIface() (*iface.WGIface, error) { Address: e.config.WgAddr, WGPort: e.config.WgPort, WGPrivKey: e.config.WgPrivateKey.String(), - MTU: iface.DefaultMTU, + MTU: e.config.MTU, TransportNet: transportNet, FilterFn: e.addrViaRoutes, DisableDNS: e.config.DisableDNS, diff --git a/client/internal/engine_test.go b/client/internal/engine_test.go index 5839447e9..9d6361bc0 100644 --- a/client/internal/engine_test.go +++ b/client/internal/engine_test.go @@ -218,7 +218,7 @@ func TestEngine_SSH(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String()) + relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String(), iface.DefaultMTU) engine := NewEngine( ctx, cancel, &signal.MockClient{}, @@ -230,6 +230,7 @@ func TestEngine_SSH(t *testing.T) { WgPrivateKey: key, WgPort: 33100, ServerSSHAllowed: true, + MTU: iface.DefaultMTU, }, MobileDependency{}, peer.NewRecorder("https://mgm"), @@ -363,7 +364,7 @@ func TestEngine_UpdateNetworkMap(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String()) + relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String(), iface.DefaultMTU) engine := NewEngine( ctx, cancel, &signal.MockClient{}, @@ -374,6 +375,7 @@ func TestEngine_UpdateNetworkMap(t *testing.T) { WgAddr: "100.64.0.1/24", WgPrivateKey: key, WgPort: 33100, + MTU: iface.DefaultMTU, }, MobileDependency{}, peer.NewRecorder("https://mgm"), @@ -412,7 +414,7 @@ func TestEngine_UpdateNetworkMap(t *testing.T) { if err != nil { t.Fatal(err) } - engine.udpMux = bind.NewUniversalUDPMuxDefault(bind.UniversalUDPMuxParams{UDPConn: conn}) + engine.udpMux = bind.NewUniversalUDPMuxDefault(bind.UniversalUDPMuxParams{UDPConn: conn, MTU: 1280}) engine.ctx = ctx engine.srWatcher = guard.NewSRWatcher(nil, nil, nil, icemaker.Config{}) engine.connMgr = NewConnMgr(engine.config, engine.statusRecorder, engine.peerStore, wgIface) @@ -589,12 +591,13 @@ func TestEngine_Sync(t *testing.T) { } return nil } - relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String()) + relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String(), iface.DefaultMTU) engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{SyncFunc: syncFunc}, relayMgr, &EngineConfig{ WgIfaceName: "utun103", WgAddr: "100.64.0.1/24", WgPrivateKey: key, WgPort: 33100, + MTU: iface.DefaultMTU, }, MobileDependency{}, peer.NewRecorder("https://mgm"), nil) engine.ctx = ctx @@ -753,12 +756,13 @@ func TestEngine_UpdateNetworkMapWithRoutes(t *testing.T) { wgIfaceName := fmt.Sprintf("utun%d", 104+n) wgAddr := fmt.Sprintf("100.66.%d.1/24", n) - relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String()) + relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String(), iface.DefaultMTU) engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, relayMgr, &EngineConfig{ WgIfaceName: wgIfaceName, WgAddr: wgAddr, WgPrivateKey: key, WgPort: 33100, + MTU: iface.DefaultMTU, }, MobileDependency{}, peer.NewRecorder("https://mgm"), nil) engine.ctx = ctx newNet, err := stdnet.NewNet() @@ -954,12 +958,13 @@ func TestEngine_UpdateNetworkMapWithDNSUpdate(t *testing.T) { wgIfaceName := fmt.Sprintf("utun%d", 104+n) wgAddr := fmt.Sprintf("100.66.%d.1/24", n) - relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String()) + relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String(), iface.DefaultMTU) engine := NewEngine(ctx, cancel, &signal.MockClient{}, &mgmt.MockClient{}, relayMgr, &EngineConfig{ WgIfaceName: wgIfaceName, WgAddr: wgAddr, WgPrivateKey: key, WgPort: 33100, + MTU: iface.DefaultMTU, }, MobileDependency{}, peer.NewRecorder("https://mgm"), nil) engine.ctx = ctx @@ -1181,6 +1186,7 @@ func Test_ParseNATExternalIPMappings(t *testing.T) { config: &EngineConfig{ IFaceBlackList: testCase.inputBlacklistInterface, NATExternalIPs: testCase.inputMapList, + MTU: iface.DefaultMTU, }, } parsedList := engine.parseNATExternalIPMappings() @@ -1481,9 +1487,10 @@ func createEngine(ctx context.Context, cancel context.CancelFunc, setupKey strin WgAddr: resp.PeerConfig.Address, WgPrivateKey: key, WgPort: wgPort, + MTU: iface.DefaultMTU, } - relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String()) + relayMgr := relayClient.NewManager(ctx, nil, key.PublicKey().String(), iface.DefaultMTU) e, err := NewEngine(ctx, cancel, signalClient, mgmtClient, relayMgr, conf, MobileDependency{}, peer.NewRecorder("https://mgm"), nil), nil e.ctx = ctx return e, err diff --git a/client/internal/profilemanager/config.go b/client/internal/profilemanager/config.go index 6bbdbd984..4e6b422f6 100644 --- a/client/internal/profilemanager/config.go +++ b/client/internal/profilemanager/config.go @@ -75,6 +75,8 @@ type ConfigInput struct { DNSLabels domain.List LazyConnectionEnabled *bool + + MTU *uint16 } // Config Configuration type @@ -141,6 +143,8 @@ type Config struct { ClientCertKeyPair *tls.Certificate `json:"-"` LazyConnectionEnabled bool + + MTU uint16 } var ConfigDirOverride string @@ -493,6 +497,16 @@ func (config *Config) apply(input ConfigInput) (updated bool, err error) { updated = true } + if input.MTU != nil && *input.MTU != config.MTU { + log.Infof("updating MTU to %d (old value %d)", *input.MTU, config.MTU) + config.MTU = *input.MTU + updated = true + } else if config.MTU == 0 { + config.MTU = iface.DefaultMTU + log.Infof("using default MTU %d", config.MTU) + updated = true + } + return updated, nil } diff --git a/client/internal/routemanager/systemops/systemops_windows.go b/client/internal/routemanager/systemops/systemops_windows.go index 36e714ec4..4f836897b 100644 --- a/client/internal/routemanager/systemops/systemops_windows.go +++ b/client/internal/routemanager/systemops/systemops_windows.go @@ -336,7 +336,7 @@ func createIPForwardEntry2(route *MIB_IPFORWARD_ROW2) error { if e1 != 0 { return fmt.Errorf("CreateIpForwardEntry2: %w", e1) } - return fmt.Errorf("CreateIpForwardEntry2: code %d", r1) + return fmt.Errorf("CreateIpForwardEntry2: code %d", windows.NTStatus(r1)) } return nil } diff --git a/client/proto/daemon.pb.go b/client/proto/daemon.pb.go index 60835d1cd..c633afc83 100644 --- a/client/proto/daemon.pb.go +++ b/client/proto/daemon.pb.go @@ -278,6 +278,7 @@ type LoginRequest struct { BlockInbound *bool `protobuf:"varint,29,opt,name=block_inbound,json=blockInbound,proto3,oneof" json:"block_inbound,omitempty"` ProfileName *string `protobuf:"bytes,30,opt,name=profileName,proto3,oneof" json:"profileName,omitempty"` Username *string `protobuf:"bytes,31,opt,name=username,proto3,oneof" json:"username,omitempty"` + Mtu *int64 `protobuf:"varint,32,opt,name=mtu,proto3,oneof" json:"mtu,omitempty"` unknownFields protoimpl.UnknownFields sizeCache protoimpl.SizeCache } @@ -530,6 +531,13 @@ func (x *LoginRequest) GetUsername() string { return "" } +func (x *LoginRequest) GetMtu() int64 { + if x != nil && x.Mtu != nil { + return *x.Mtu + } + return 0 +} + type LoginResponse struct { state protoimpl.MessageState `protogen:"open.v1"` NeedsSSOLogin bool `protobuf:"varint,1,opt,name=needsSSOLogin,proto3" json:"needsSSOLogin,omitempty"` @@ -1034,6 +1042,7 @@ type GetConfigResponse struct { AdminURL string `protobuf:"bytes,5,opt,name=adminURL,proto3" json:"adminURL,omitempty"` InterfaceName string `protobuf:"bytes,6,opt,name=interfaceName,proto3" json:"interfaceName,omitempty"` WireguardPort int64 `protobuf:"varint,7,opt,name=wireguardPort,proto3" json:"wireguardPort,omitempty"` + Mtu int64 `protobuf:"varint,8,opt,name=mtu,proto3" json:"mtu,omitempty"` DisableAutoConnect bool `protobuf:"varint,9,opt,name=disableAutoConnect,proto3" json:"disableAutoConnect,omitempty"` ServerSSHAllowed bool `protobuf:"varint,10,opt,name=serverSSHAllowed,proto3" json:"serverSSHAllowed,omitempty"` RosenpassEnabled bool `protobuf:"varint,11,opt,name=rosenpassEnabled,proto3" json:"rosenpassEnabled,omitempty"` @@ -1129,6 +1138,13 @@ func (x *GetConfigResponse) GetWireguardPort() int64 { return 0 } +func (x *GetConfigResponse) GetMtu() int64 { + if x != nil { + return x.Mtu + } + return 0 +} + func (x *GetConfigResponse) GetDisableAutoConnect() bool { if x != nil { return x.DisableAutoConnect @@ -3679,6 +3695,7 @@ type SetConfigRequest struct { // cleanDNSLabels clean map list of DNS labels. CleanDNSLabels bool `protobuf:"varint,26,opt,name=cleanDNSLabels,proto3" json:"cleanDNSLabels,omitempty"` DnsRouteInterval *durationpb.Duration `protobuf:"bytes,27,opt,name=dnsRouteInterval,proto3,oneof" json:"dnsRouteInterval,omitempty"` + Mtu *int64 `protobuf:"varint,28,opt,name=mtu,proto3,oneof" json:"mtu,omitempty"` unknownFields protoimpl.UnknownFields sizeCache protoimpl.SizeCache } @@ -3902,6 +3919,13 @@ func (x *SetConfigRequest) GetDnsRouteInterval() *durationpb.Duration { return nil } +func (x *SetConfigRequest) GetMtu() int64 { + if x != nil && x.Mtu != nil { + return *x.Mtu + } + return 0 +} + type SetConfigResponse struct { state protoimpl.MessageState `protogen:"open.v1"` unknownFields protoimpl.UnknownFields @@ -4575,7 +4599,7 @@ var File_daemon_proto protoreflect.FileDescriptor const file_daemon_proto_rawDesc = "" + "\n" + "\fdaemon.proto\x12\x06daemon\x1a google/protobuf/descriptor.proto\x1a\x1fgoogle/protobuf/timestamp.proto\x1a\x1egoogle/protobuf/duration.proto\"\x0e\n" + - "\fEmptyRequest\"\xa4\x0e\n" + + "\fEmptyRequest\"\xc3\x0e\n" + "\fLoginRequest\x12\x1a\n" + "\bsetupKey\x18\x01 \x01(\tR\bsetupKey\x12&\n" + "\fpreSharedKey\x18\x02 \x01(\tB\x02\x18\x01R\fpreSharedKey\x12$\n" + @@ -4611,7 +4635,8 @@ const file_daemon_proto_rawDesc = "" + "\x15lazyConnectionEnabled\x18\x1c \x01(\bH\x0fR\x15lazyConnectionEnabled\x88\x01\x01\x12(\n" + "\rblock_inbound\x18\x1d \x01(\bH\x10R\fblockInbound\x88\x01\x01\x12%\n" + "\vprofileName\x18\x1e \x01(\tH\x11R\vprofileName\x88\x01\x01\x12\x1f\n" + - "\busername\x18\x1f \x01(\tH\x12R\busername\x88\x01\x01B\x13\n" + + "\busername\x18\x1f \x01(\tH\x12R\busername\x88\x01\x01\x12\x15\n" + + "\x03mtu\x18 \x01(\x03H\x13R\x03mtu\x88\x01\x01B\x13\n" + "\x11_rosenpassEnabledB\x10\n" + "\x0e_interfaceNameB\x10\n" + "\x0e_wireguardPortB\x17\n" + @@ -4630,7 +4655,8 @@ const file_daemon_proto_rawDesc = "" + "\x16_lazyConnectionEnabledB\x10\n" + "\x0e_block_inboundB\x0e\n" + "\f_profileNameB\v\n" + - "\t_username\"\xb5\x01\n" + + "\t_usernameB\x06\n" + + "\x04_mtu\"\xb5\x01\n" + "\rLoginResponse\x12$\n" + "\rneedsSSOLogin\x18\x01 \x01(\bR\rneedsSSOLogin\x12\x1a\n" + "\buserCode\x18\x02 \x01(\tR\buserCode\x12(\n" + @@ -4661,7 +4687,7 @@ const file_daemon_proto_rawDesc = "" + "\fDownResponse\"P\n" + "\x10GetConfigRequest\x12 \n" + "\vprofileName\x18\x01 \x01(\tR\vprofileName\x12\x1a\n" + - "\busername\x18\x02 \x01(\tR\busername\"\xa3\x06\n" + + "\busername\x18\x02 \x01(\tR\busername\"\xb5\x06\n" + "\x11GetConfigResponse\x12$\n" + "\rmanagementUrl\x18\x01 \x01(\tR\rmanagementUrl\x12\x1e\n" + "\n" + @@ -4671,7 +4697,8 @@ const file_daemon_proto_rawDesc = "" + "\fpreSharedKey\x18\x04 \x01(\tR\fpreSharedKey\x12\x1a\n" + "\badminURL\x18\x05 \x01(\tR\badminURL\x12$\n" + "\rinterfaceName\x18\x06 \x01(\tR\rinterfaceName\x12$\n" + - "\rwireguardPort\x18\a \x01(\x03R\rwireguardPort\x12.\n" + + "\rwireguardPort\x18\a \x01(\x03R\rwireguardPort\x12\x10\n" + + "\x03mtu\x18\b \x01(\x03R\x03mtu\x12.\n" + "\x12disableAutoConnect\x18\t \x01(\bR\x12disableAutoConnect\x12*\n" + "\x10serverSSHAllowed\x18\n" + " \x01(\bR\x10serverSSHAllowed\x12*\n" + @@ -4885,7 +4912,7 @@ const file_daemon_proto_rawDesc = "" + "\busername\x18\x02 \x01(\tH\x01R\busername\x88\x01\x01B\x0e\n" + "\f_profileNameB\v\n" + "\t_username\"\x17\n" + - "\x15SwitchProfileResponse\"\xef\f\n" + + "\x15SwitchProfileResponse\"\x8e\r\n" + "\x10SetConfigRequest\x12\x1a\n" + "\busername\x18\x01 \x01(\tR\busername\x12 \n" + "\vprofileName\x18\x02 \x01(\tR\vprofileName\x12$\n" + @@ -4917,7 +4944,8 @@ const file_daemon_proto_rawDesc = "" + "\n" + "dns_labels\x18\x19 \x03(\tR\tdnsLabels\x12&\n" + "\x0ecleanDNSLabels\x18\x1a \x01(\bR\x0ecleanDNSLabels\x12J\n" + - "\x10dnsRouteInterval\x18\x1b \x01(\v2\x19.google.protobuf.DurationH\x10R\x10dnsRouteInterval\x88\x01\x01B\x13\n" + + "\x10dnsRouteInterval\x18\x1b \x01(\v2\x19.google.protobuf.DurationH\x10R\x10dnsRouteInterval\x88\x01\x01\x12\x15\n" + + "\x03mtu\x18\x1c \x01(\x03H\x11R\x03mtu\x88\x01\x01B\x13\n" + "\x11_rosenpassEnabledB\x10\n" + "\x0e_interfaceNameB\x10\n" + "\x0e_wireguardPortB\x17\n" + @@ -4934,7 +4962,8 @@ const file_daemon_proto_rawDesc = "" + "\x16_disable_notificationsB\x18\n" + "\x16_lazyConnectionEnabledB\x10\n" + "\x0e_block_inboundB\x13\n" + - "\x11_dnsRouteInterval\"\x13\n" + + "\x11_dnsRouteIntervalB\x06\n" + + "\x04_mtu\"\x13\n" + "\x11SetConfigResponse\"Q\n" + "\x11AddProfileRequest\x12\x1a\n" + "\busername\x18\x01 \x01(\tR\busername\x12 \n" + diff --git a/client/proto/daemon.proto b/client/proto/daemon.proto index fa54071ec..0cd3579b9 100644 --- a/client/proto/daemon.proto +++ b/client/proto/daemon.proto @@ -156,6 +156,8 @@ message LoginRequest { optional string profileName = 30; optional string username = 31; + + optional int64 mtu = 32; } message LoginResponse { @@ -223,6 +225,8 @@ message GetConfigResponse { int64 wireguardPort = 7; + int64 mtu = 8; + bool disableAutoConnect = 9; bool serverSSHAllowed = 10; @@ -538,36 +542,36 @@ message SetConfigRequest { string profileName = 2; // managementUrl to authenticate. string managementUrl = 3; - + // adminUrl to manage keys. string adminURL = 4; - + optional bool rosenpassEnabled = 5; - + optional string interfaceName = 6; - + optional int64 wireguardPort = 7; - + optional string optionalPreSharedKey = 8; - + optional bool disableAutoConnect = 9; - + optional bool serverSSHAllowed = 10; - + optional bool rosenpassPermissive = 11; - + optional bool networkMonitor = 12; - + optional bool disable_client_routes = 13; optional bool disable_server_routes = 14; optional bool disable_dns = 15; optional bool disable_firewall = 16; optional bool block_lan_access = 17; - + optional bool disable_notifications = 18; - + optional bool lazyConnectionEnabled = 19; - + optional bool block_inbound = 20; repeated string natExternalIPs = 21; @@ -583,6 +587,7 @@ message SetConfigRequest { optional google.protobuf.Duration dnsRouteInterval = 27; + optional int64 mtu = 28; } message SetConfigResponse{} @@ -633,4 +638,4 @@ message GetFeaturesRequest{} message GetFeaturesResponse{ bool disable_profiles = 1; bool disable_update_settings = 2; -} \ No newline at end of file +} diff --git a/client/server/server.go b/client/server/server.go index f2e8dc12a..d89c7ce91 100644 --- a/client/server/server.go +++ b/client/server/server.go @@ -400,6 +400,11 @@ func (s *Server) SetConfig(callerCtx context.Context, msg *proto.SetConfigReques config.LazyConnectionEnabled = msg.LazyConnectionEnabled config.BlockInbound = msg.BlockInbound + if msg.Mtu != nil { + mtu := uint16(*msg.Mtu) + config.MTU = &mtu + } + if _, err := profilemanager.UpdateConfig(config); err != nil { log.Errorf("failed to update profile config: %v", err) return nil, fmt.Errorf("failed to update profile config: %w", err) @@ -484,6 +489,7 @@ func (s *Server) Login(callerCtx context.Context, msg *proto.LoginRequest) (*pro // nolint ctx = context.WithValue(ctx, system.DeviceNameCtxKey, msg.Hostname) } + s.mutex.Unlock() config, err := s.getConfig(activeProf) @@ -1105,6 +1111,7 @@ func (s *Server) GetConfig(ctx context.Context, req *proto.GetConfigRequest) (*p AdminURL: adminURL.String(), InterfaceName: cfg.WgIface, WireguardPort: int64(cfg.WgPort), + Mtu: int64(cfg.MTU), DisableAutoConnect: cfg.DisableAutoConnect, ServerSSHAllowed: *cfg.ServerSSHAllowed, RosenpassEnabled: cfg.RosenpassEnabled, diff --git a/client/ui/client_ui.go b/client/ui/client_ui.go index f43606de1..2403b5d05 100644 --- a/client/ui/client_ui.go +++ b/client/ui/client_ui.go @@ -257,6 +257,7 @@ type serviceClient struct { iPreSharedKey *widget.Entry iInterfaceName *widget.Entry iInterfacePort *widget.Entry + iMTU *widget.Entry // switch elements for settings form sRosenpassPermissive *widget.Check @@ -272,6 +273,7 @@ type serviceClient struct { RosenpassPermissive bool interfaceName string interfacePort int + mtu uint16 networkMonitor bool disableDNS bool disableClientRoutes bool @@ -413,6 +415,7 @@ func (s *serviceClient) showSettingsUI() { s.iPreSharedKey = widget.NewPasswordEntry() s.iInterfaceName = widget.NewEntry() s.iInterfacePort = widget.NewEntry() + s.iMTU = widget.NewEntry() s.sRosenpassPermissive = widget.NewCheck("Enable Rosenpass permissive mode", nil) @@ -446,6 +449,7 @@ func (s *serviceClient) getSettingsForm() *widget.Form { {Text: "Quantum-Resistance", Widget: s.sRosenpassPermissive}, {Text: "Interface Name", Widget: s.iInterfaceName}, {Text: "Interface Port", Widget: s.iInterfacePort}, + {Text: "MTU", Widget: s.iMTU}, {Text: "Management URL", Widget: s.iMngURL}, {Text: "Pre-shared Key", Widget: s.iPreSharedKey}, {Text: "Log File", Widget: s.iLogFile}, @@ -482,6 +486,21 @@ func (s *serviceClient) getSettingsForm() *widget.Form { return } + var mtu int64 + mtuText := strings.TrimSpace(s.iMTU.Text) + if mtuText != "" { + var err error + mtu, err = strconv.ParseInt(mtuText, 10, 64) + if err != nil { + dialog.ShowError(errors.New("Invalid MTU value"), s.wSettings) + return + } + if mtu < iface.MinMTU || mtu > iface.MaxMTU { + dialog.ShowError(fmt.Errorf("MTU must be between %d and %d bytes", iface.MinMTU, iface.MaxMTU), s.wSettings) + return + } + } + iMngURL := strings.TrimSpace(s.iMngURL.Text) defer s.wSettings.Close() @@ -490,6 +509,7 @@ func (s *serviceClient) getSettingsForm() *widget.Form { if s.managementURL != iMngURL || s.preSharedKey != s.iPreSharedKey.Text || s.RosenpassPermissive != s.sRosenpassPermissive.Checked || s.interfaceName != s.iInterfaceName.Text || s.interfacePort != int(port) || + s.mtu != uint16(mtu) || s.networkMonitor != s.sNetworkMonitor.Checked || s.disableDNS != s.sDisableDNS.Checked || s.disableClientRoutes != s.sDisableClientRoutes.Checked || @@ -498,6 +518,7 @@ func (s *serviceClient) getSettingsForm() *widget.Form { s.managementURL = iMngURL s.preSharedKey = s.iPreSharedKey.Text + s.mtu = uint16(mtu) currUser, err := user.Current() if err != nil { @@ -508,7 +529,7 @@ func (s *serviceClient) getSettingsForm() *widget.Form { var req proto.SetConfigRequest req.ProfileName = activeProf.Name req.Username = currUser.Username - + if iMngURL != "" { req.ManagementUrl = iMngURL } @@ -516,6 +537,9 @@ func (s *serviceClient) getSettingsForm() *widget.Form { req.RosenpassPermissive = &s.sRosenpassPermissive.Checked req.InterfaceName = &s.iInterfaceName.Text req.WireguardPort = &port + if mtu > 0 { + req.Mtu = &mtu + } req.NetworkMonitor = &s.sNetworkMonitor.Checked req.DisableDns = &s.sDisableDNS.Checked req.DisableClientRoutes = &s.sDisableClientRoutes.Checked @@ -1088,6 +1112,7 @@ func (s *serviceClient) getSrvConfig() { s.RosenpassPermissive = cfg.RosenpassPermissive s.interfaceName = cfg.WgIface s.interfacePort = cfg.WgPort + s.mtu = cfg.MTU s.networkMonitor = *cfg.NetworkMonitor s.disableDNS = cfg.DisableDNS @@ -1100,6 +1125,12 @@ func (s *serviceClient) getSrvConfig() { s.iPreSharedKey.SetText(cfg.PreSharedKey) s.iInterfaceName.SetText(cfg.WgIface) s.iInterfacePort.SetText(strconv.Itoa(cfg.WgPort)) + if cfg.MTU != 0 { + s.iMTU.SetText(strconv.Itoa(int(cfg.MTU))) + } else { + s.iMTU.SetText("") + s.iMTU.SetPlaceHolder(strconv.Itoa(int(iface.DefaultMTU))) + } s.sRosenpassPermissive.SetChecked(cfg.RosenpassPermissive) if !cfg.RosenpassEnabled { s.sRosenpassPermissive.Disable() @@ -1160,6 +1191,12 @@ func protoConfigToConfig(cfg *proto.GetConfigResponse) *profilemanager.Config { config.WgPort = iface.DefaultWgPort } + if cfg.Mtu != 0 { + config.MTU = uint16(cfg.Mtu) + } else { + config.MTU = iface.DefaultMTU + } + config.DisableAutoConnect = cfg.DisableAutoConnect config.ServerSSHAllowed = &cfg.ServerSSHAllowed config.RosenpassEnabled = cfg.RosenpassEnabled diff --git a/relay/test/benchmark_test.go b/relay/test/benchmark_test.go index 6b8a6f701..4dfea6da1 100644 --- a/relay/test/benchmark_test.go +++ b/relay/test/benchmark_test.go @@ -13,10 +13,11 @@ import ( "github.com/pion/logging" "github.com/pion/turn/v3" + "github.com/netbirdio/netbird/client/iface" + "github.com/netbirdio/netbird/relay/server" "github.com/netbirdio/netbird/shared/relay/auth/allow" "github.com/netbirdio/netbird/shared/relay/auth/hmac" "github.com/netbirdio/netbird/shared/relay/client" - "github.com/netbirdio/netbird/relay/server" "github.com/netbirdio/netbird/util" ) @@ -100,7 +101,7 @@ func transfer(t *testing.T, testData []byte, peerPairs int) { clientsSender := make([]*client.Client, peerPairs) for i := 0; i < cap(clientsSender); i++ { - c := client.NewClient(serverConnURL, hmacTokenStore, "sender-"+fmt.Sprint(i)) + c := client.NewClient(serverConnURL, hmacTokenStore, "sender-"+fmt.Sprint(i), iface.DefaultMTU) err := c.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) @@ -110,7 +111,7 @@ func transfer(t *testing.T, testData []byte, peerPairs int) { clientsReceiver := make([]*client.Client, peerPairs) for i := 0; i < cap(clientsReceiver); i++ { - c := client.NewClient(serverConnURL, hmacTokenStore, "receiver-"+fmt.Sprint(i)) + c := client.NewClient(serverConnURL, hmacTokenStore, "receiver-"+fmt.Sprint(i), iface.DefaultMTU) err := c.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) diff --git a/relay/testec2/relay.go b/relay/testec2/relay.go index aa0fc662a..e6924061f 100644 --- a/relay/testec2/relay.go +++ b/relay/testec2/relay.go @@ -11,6 +11,7 @@ import ( log "github.com/sirupsen/logrus" + "github.com/netbirdio/netbird/client/iface" "github.com/netbirdio/netbird/shared/relay/auth/hmac" "github.com/netbirdio/netbird/shared/relay/client" ) @@ -70,7 +71,7 @@ func prepareConnsSender(serverConnURL string, peerPairs int) []net.Conn { ctx := context.Background() clientsSender := make([]*client.Client, peerPairs) for i := 0; i < cap(clientsSender); i++ { - c := client.NewClient(serverConnURL, hmacTokenStore, "sender-"+fmt.Sprint(i)) + c := client.NewClient(serverConnURL, hmacTokenStore, "sender-"+fmt.Sprint(i), iface.DefaultMTU) if err := c.Connect(ctx); err != nil { log.Fatalf("failed to connect to server: %s", err) } @@ -156,7 +157,7 @@ func runReader(conn net.Conn) time.Duration { func prepareConnsReceiver(serverConnURL string, peerPairs int) []net.Conn { clientsReceiver := make([]*client.Client, peerPairs) for i := 0; i < cap(clientsReceiver); i++ { - c := client.NewClient(serverConnURL, hmacTokenStore, "receiver-"+fmt.Sprint(i)) + c := client.NewClient(serverConnURL, hmacTokenStore, "receiver-"+fmt.Sprint(i), iface.DefaultMTU) err := c.Connect(context.Background()) if err != nil { log.Fatalf("failed to connect to server: %s", err) diff --git a/shared/management/proto/management.pb.go b/shared/management/proto/management.pb.go index 327a24842..bf614e8aa 100644 --- a/shared/management/proto/management.pb.go +++ b/shared/management/proto/management.pb.go @@ -1,19 +1,18 @@ // Code generated by protoc-gen-go. DO NOT EDIT. // versions: // protoc-gen-go v1.26.0 -// protoc v3.21.12 +// protoc v4.24.3 // source: management.proto package proto import ( - reflect "reflect" - sync "sync" - protoreflect "google.golang.org/protobuf/reflect/protoreflect" protoimpl "google.golang.org/protobuf/runtime/protoimpl" durationpb "google.golang.org/protobuf/types/known/durationpb" timestamppb "google.golang.org/protobuf/types/known/timestamppb" + reflect "reflect" + sync "sync" ) const ( @@ -1650,6 +1649,7 @@ type PeerConfig struct { Fqdn string `protobuf:"bytes,4,opt,name=fqdn,proto3" json:"fqdn,omitempty"` RoutingPeerDnsResolutionEnabled bool `protobuf:"varint,5,opt,name=RoutingPeerDnsResolutionEnabled,proto3" json:"RoutingPeerDnsResolutionEnabled,omitempty"` LazyConnectionEnabled bool `protobuf:"varint,6,opt,name=LazyConnectionEnabled,proto3" json:"LazyConnectionEnabled,omitempty"` + Mtu int32 `protobuf:"varint,7,opt,name=mtu,proto3" json:"mtu,omitempty"` } func (x *PeerConfig) Reset() { @@ -1726,6 +1726,13 @@ func (x *PeerConfig) GetLazyConnectionEnabled() bool { return false } +func (x *PeerConfig) GetMtu() int32 { + if x != nil { + return x.Mtu + } + return 0 +} + // NetworkMap represents a network state of the peer with the corresponding configuration parameters to establish peer-to-peer connections type NetworkMap struct { state protoimpl.MessageState @@ -3569,7 +3576,7 @@ var file_management_proto_rawDesc = []byte{ 0x68, 0x6f, 0x73, 0x74, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x12, 0x0a, 0x04, 0x75, 0x73, 0x65, 0x72, 0x18, 0x02, 0x20, 0x01, 0x28, 0x09, 0x52, 0x04, 0x75, 0x73, 0x65, 0x72, 0x12, 0x1a, 0x0a, 0x08, 0x70, 0x61, 0x73, 0x73, 0x77, 0x6f, 0x72, 0x64, 0x18, 0x03, 0x20, 0x01, 0x28, 0x09, - 0x52, 0x08, 0x70, 0x61, 0x73, 0x73, 0x77, 0x6f, 0x72, 0x64, 0x22, 0x81, 0x02, 0x0a, 0x0a, 0x50, + 0x52, 0x08, 0x70, 0x61, 0x73, 0x73, 0x77, 0x6f, 0x72, 0x64, 0x22, 0x93, 0x02, 0x0a, 0x0a, 0x50, 0x65, 0x65, 0x72, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x12, 0x18, 0x0a, 0x07, 0x61, 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0x65, 0x6d, 0x65, 0x6e, 0x74, 0x2e, 0x45, 0x6d, 0x70, 0x74, 0x79, 0x22, 0x00, 0x42, 0x08, + 0x5a, 0x06, 0x2f, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x62, 0x06, 0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33, } var ( diff --git a/shared/management/proto/management.proto b/shared/management/proto/management.proto index 3a825756b..dcdd387b4 100644 --- a/shared/management/proto/management.proto +++ b/shared/management/proto/management.proto @@ -264,6 +264,8 @@ message PeerConfig { bool RoutingPeerDnsResolutionEnabled = 5; bool LazyConnectionEnabled = 6; + + int32 mtu = 7; } // NetworkMap represents a network state of the peer with the corresponding configuration parameters to establish peer-to-peer connections diff --git a/shared/relay/client/client.go b/shared/relay/client/client.go index 37c9debc2..5dabc5742 100644 --- a/shared/relay/client/client.go +++ b/shared/relay/client/client.go @@ -9,6 +9,7 @@ import ( log "github.com/sirupsen/logrus" + "github.com/netbirdio/netbird/client/iface" auth "github.com/netbirdio/netbird/shared/relay/auth/hmac" "github.com/netbirdio/netbird/shared/relay/client/dialer" "github.com/netbirdio/netbird/shared/relay/client/dialer/quic" @@ -143,10 +144,12 @@ type Client struct { listenerMutex sync.Mutex stateSubscription *PeersStateSubscription + + mtu uint16 } // NewClient creates a new client for the relay server. The client is not connected to the server until the Connect -func NewClient(serverURL string, authTokenStore *auth.TokenStore, peerID string) *Client { +func NewClient(serverURL string, authTokenStore *auth.TokenStore, peerID string, mtu uint16) *Client { hashedID := messages.HashID(peerID) relayLog := log.WithFields(log.Fields{"relay": serverURL}) @@ -155,6 +158,7 @@ func NewClient(serverURL string, authTokenStore *auth.TokenStore, peerID string) connectionURL: serverURL, authTokenStore: authTokenStore, hashedID: hashedID, + mtu: mtu, bufPool: &sync.Pool{ New: func() any { buf := make([]byte, bufferSize) @@ -292,7 +296,16 @@ func (c *Client) Close() error { } func (c *Client) connect(ctx context.Context) (*RelayAddr, error) { - rd := dialer.NewRaceDial(c.log, dialer.DefaultConnectionTimeout, c.connectionURL, quic.Dialer{}, ws.Dialer{}) + // Force WebSocket for MTUs larger than default to avoid QUIC DATAGRAM frame size issues + var dialers []dialer.DialeFn + if c.mtu > 0 && c.mtu > iface.DefaultMTU { + c.log.Infof("MTU %d exceeds default (%d), forcing WebSocket transport to avoid DATAGRAM frame size issues", c.mtu, iface.DefaultMTU) + dialers = []dialer.DialeFn{ws.Dialer{}} + } else { + dialers = []dialer.DialeFn{quic.Dialer{}, ws.Dialer{}} + } + + rd := dialer.NewRaceDial(c.log, dialer.DefaultConnectionTimeout, c.connectionURL, dialers...) conn, err := rd.Dial() if err != nil { return nil, err diff --git a/shared/relay/client/client_test.go b/shared/relay/client/client_test.go index c7c5fbf2b..8fe5f04f4 100644 --- a/shared/relay/client/client_test.go +++ b/shared/relay/client/client_test.go @@ -10,6 +10,7 @@ import ( log "github.com/sirupsen/logrus" "go.opentelemetry.io/otel" + "github.com/netbirdio/netbird/client/iface" "github.com/netbirdio/netbird/shared/relay/auth/allow" "github.com/netbirdio/netbird/shared/relay/auth/hmac" "github.com/netbirdio/netbird/util" @@ -63,7 +64,7 @@ func TestClient(t *testing.T) { t.Fatalf("failed to start server: %s", err) } t.Log("alice connecting to server") - clientAlice := NewClient(serverURL, hmacTokenStore, "alice") + clientAlice := NewClient(serverURL, hmacTokenStore, "alice", iface.DefaultMTU) err = clientAlice.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) @@ -71,7 +72,7 @@ func TestClient(t *testing.T) { defer clientAlice.Close() t.Log("placeholder connecting to server") - clientPlaceHolder := NewClient(serverURL, hmacTokenStore, "clientPlaceHolder") + clientPlaceHolder := NewClient(serverURL, hmacTokenStore, "clientPlaceHolder", iface.DefaultMTU) err = clientPlaceHolder.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) @@ -79,7 +80,7 @@ func TestClient(t *testing.T) { defer clientPlaceHolder.Close() t.Log("Bob connecting to server") - clientBob := NewClient(serverURL, hmacTokenStore, "bob") + clientBob := NewClient(serverURL, hmacTokenStore, "bob", iface.DefaultMTU) err = clientBob.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) @@ -137,7 +138,7 @@ func TestRegistration(t *testing.T) { t.Fatalf("failed to start server: %s", err) } - clientAlice := NewClient(serverURL, hmacTokenStore, "alice") + clientAlice := NewClient(serverURL, hmacTokenStore, "alice", iface.DefaultMTU) err = clientAlice.Connect(ctx) if err != nil { _ = srv.Shutdown(ctx) @@ -177,7 +178,7 @@ func TestRegistrationTimeout(t *testing.T) { _ = fakeTCPListener.Close() }(fakeTCPListener) - clientAlice := NewClient("127.0.0.1:1234", hmacTokenStore, "alice") + clientAlice := NewClient("127.0.0.1:1234", hmacTokenStore, "alice", iface.DefaultMTU) err = clientAlice.Connect(ctx) if err == nil { t.Errorf("failed to connect to server: %s", err) @@ -218,7 +219,7 @@ func TestEcho(t *testing.T) { t.Fatalf("failed to start server: %s", err) } - clientAlice := NewClient(serverURL, hmacTokenStore, idAlice) + clientAlice := NewClient(serverURL, hmacTokenStore, idAlice, iface.DefaultMTU) err = clientAlice.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) @@ -230,7 +231,7 @@ func TestEcho(t *testing.T) { } }() - clientBob := NewClient(serverURL, hmacTokenStore, idBob) + clientBob := NewClient(serverURL, hmacTokenStore, idBob, iface.DefaultMTU) err = clientBob.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) @@ -308,7 +309,7 @@ func TestBindToUnavailabePeer(t *testing.T) { t.Fatalf("failed to start server: %s", err) } - clientAlice := NewClient(serverURL, hmacTokenStore, "alice") + clientAlice := NewClient(serverURL, hmacTokenStore, "alice", iface.DefaultMTU) err = clientAlice.Connect(ctx) if err != nil { t.Errorf("failed to connect to server: %s", err) @@ -354,13 +355,13 @@ func TestBindReconnect(t *testing.T) { t.Fatalf("failed to start server: %s", err) } - clientAlice := NewClient(serverURL, hmacTokenStore, "alice") + clientAlice := NewClient(serverURL, hmacTokenStore, "alice", iface.DefaultMTU) err = clientAlice.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) } - clientBob := NewClient(serverURL, hmacTokenStore, "bob") + clientBob := NewClient(serverURL, hmacTokenStore, "bob", iface.DefaultMTU) err = clientBob.Connect(ctx) if err != nil { t.Errorf("failed to connect to server: %s", err) @@ -382,7 +383,7 @@ func TestBindReconnect(t *testing.T) { t.Errorf("failed to close client: %s", err) } - clientAlice = NewClient(serverURL, hmacTokenStore, "alice") + clientAlice = NewClient(serverURL, hmacTokenStore, "alice", iface.DefaultMTU) err = clientAlice.Connect(ctx) if err != nil { t.Errorf("failed to connect to server: %s", err) @@ -455,13 +456,13 @@ func TestCloseConn(t *testing.T) { t.Fatalf("failed to start server: %s", err) } - bob := NewClient(serverURL, hmacTokenStore, "bob") + bob := NewClient(serverURL, hmacTokenStore, "bob", iface.DefaultMTU) err = bob.Connect(ctx) if err != nil { t.Errorf("failed to connect to server: %s", err) } - clientAlice := NewClient(serverURL, hmacTokenStore, "alice") + clientAlice := NewClient(serverURL, hmacTokenStore, "alice", iface.DefaultMTU) err = clientAlice.Connect(ctx) if err != nil { t.Errorf("failed to connect to server: %s", err) @@ -517,13 +518,13 @@ func TestCloseRelayConn(t *testing.T) { t.Fatalf("failed to start server: %s", err) } - bob := NewClient(serverURL, hmacTokenStore, "bob") + bob := NewClient(serverURL, hmacTokenStore, "bob", iface.DefaultMTU) err = bob.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) } - clientAlice := NewClient(serverURL, hmacTokenStore, "alice") + clientAlice := NewClient(serverURL, hmacTokenStore, "alice", iface.DefaultMTU) err = clientAlice.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) @@ -571,7 +572,7 @@ func TestCloseByServer(t *testing.T) { idAlice := "alice" log.Debugf("connect by alice") - relayClient := NewClient(serverURL, hmacTokenStore, idAlice) + relayClient := NewClient(serverURL, hmacTokenStore, idAlice, iface.DefaultMTU) if err = relayClient.Connect(ctx); err != nil { log.Fatalf("failed to connect to server: %s", err) } @@ -627,7 +628,7 @@ func TestCloseByClient(t *testing.T) { idAlice := "alice" log.Debugf("connect by alice") - relayClient := NewClient(serverURL, hmacTokenStore, idAlice) + relayClient := NewClient(serverURL, hmacTokenStore, idAlice, iface.DefaultMTU) err = relayClient.Connect(ctx) if err != nil { log.Fatalf("failed to connect to server: %s", err) @@ -678,7 +679,7 @@ func TestCloseNotDrainedChannel(t *testing.T) { t.Fatalf("failed to start server: %s", err) } - clientAlice := NewClient(serverURL, hmacTokenStore, idAlice) + clientAlice := NewClient(serverURL, hmacTokenStore, idAlice, iface.DefaultMTU) err = clientAlice.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) @@ -690,7 +691,7 @@ func TestCloseNotDrainedChannel(t *testing.T) { } }() - clientBob := NewClient(serverURL, hmacTokenStore, idBob) + clientBob := NewClient(serverURL, hmacTokenStore, idBob, iface.DefaultMTU) err = clientBob.Connect(ctx) if err != nil { t.Fatalf("failed to connect to server: %s", err) diff --git a/shared/relay/client/manager.go b/shared/relay/client/manager.go index f3428f255..a40343fb1 100644 --- a/shared/relay/client/manager.go +++ b/shared/relay/client/manager.go @@ -63,20 +63,24 @@ type Manager struct { onDisconnectedListeners map[string]*list.List onReconnectedListenerFn func() listenerLock sync.Mutex + + mtu uint16 } // NewManager creates a new manager instance. // The serverURL address can be empty. In this case, the manager will not serve. -func NewManager(ctx context.Context, serverURLs []string, peerID string) *Manager { +func NewManager(ctx context.Context, serverURLs []string, peerID string, mtu uint16) *Manager { tokenStore := &relayAuth.TokenStore{} m := &Manager{ ctx: ctx, peerID: peerID, tokenStore: tokenStore, + mtu: mtu, serverPicker: &ServerPicker{ TokenStore: tokenStore, PeerID: peerID, + MTU: mtu, }, relayClients: make(map[string]*RelayTrack), onDisconnectedListeners: make(map[string]*list.List), @@ -253,7 +257,7 @@ func (m *Manager) openConnVia(ctx context.Context, serverAddress, peerKey string m.relayClients[serverAddress] = rt m.relayClientsMutex.Unlock() - relayClient := NewClient(serverAddress, m.tokenStore, m.peerID) + relayClient := NewClient(serverAddress, m.tokenStore, m.peerID, m.mtu) err := relayClient.Connect(m.ctx) if err != nil { rt.err = err diff --git a/shared/relay/client/manager_test.go b/shared/relay/client/manager_test.go index 674555ff4..f00b35707 100644 --- a/shared/relay/client/manager_test.go +++ b/shared/relay/client/manager_test.go @@ -8,14 +8,15 @@ import ( log "github.com/sirupsen/logrus" "go.opentelemetry.io/otel" - "github.com/netbirdio/netbird/shared/relay/auth/allow" + "github.com/netbirdio/netbird/client/iface" "github.com/netbirdio/netbird/relay/server" + "github.com/netbirdio/netbird/shared/relay/auth/allow" ) func TestEmptyURL(t *testing.T) { ctx, cancel := context.WithCancel(context.Background()) defer cancel() - mgr := NewManager(ctx, nil, "alice") + mgr := NewManager(ctx, nil, "alice", iface.DefaultMTU) err := mgr.Serve() if err == nil { t.Errorf("expected error, got nil") @@ -90,12 +91,12 @@ func TestForeignConn(t *testing.T) { mCtx, cancel := context.WithCancel(ctx) defer cancel() - clientAlice := NewManager(mCtx, toURL(lstCfg1), "alice") + clientAlice := NewManager(mCtx, toURL(lstCfg1), "alice", iface.DefaultMTU) if err := clientAlice.Serve(); err != nil { t.Fatalf("failed to serve manager: %s", err) } - clientBob := NewManager(mCtx, toURL(srvCfg2), "bob") + clientBob := NewManager(mCtx, toURL(srvCfg2), "bob", iface.DefaultMTU) if err := clientBob.Serve(); err != nil { t.Fatalf("failed to serve manager: %s", err) } @@ -197,12 +198,12 @@ func TestForeginConnClose(t *testing.T) { mCtx, cancel := context.WithCancel(ctx) defer cancel() - mgrBob := NewManager(mCtx, toURL(srvCfg2), "bob") + mgrBob := NewManager(mCtx, toURL(srvCfg2), "bob", iface.DefaultMTU) if err := mgrBob.Serve(); err != nil { t.Fatalf("failed to serve manager: %s", err) } - mgr := NewManager(mCtx, toURL(srvCfg1), "alice") + mgr := NewManager(mCtx, toURL(srvCfg1), "alice", iface.DefaultMTU) err = mgr.Serve() if err != nil { t.Fatalf("failed to serve manager: %s", err) @@ -282,7 +283,7 @@ func TestForeignAutoClose(t *testing.T) { t.Log("connect to server 1.") mCtx, cancel := context.WithCancel(ctx) defer cancel() - mgr := NewManager(mCtx, toURL(srvCfg1), idAlice) + mgr := NewManager(mCtx, toURL(srvCfg1), idAlice, iface.DefaultMTU) err = mgr.Serve() if err != nil { t.Fatalf("failed to serve manager: %s", err) @@ -353,13 +354,13 @@ func TestAutoReconnect(t *testing.T) { mCtx, cancel := context.WithCancel(ctx) defer cancel() - clientBob := NewManager(mCtx, toURL(srvCfg), "bob") + clientBob := NewManager(mCtx, toURL(srvCfg), "bob", iface.DefaultMTU) err = clientBob.Serve() if err != nil { t.Fatalf("failed to serve manager: %s", err) } - clientAlice := NewManager(mCtx, toURL(srvCfg), "alice") + clientAlice := NewManager(mCtx, toURL(srvCfg), "alice", iface.DefaultMTU) err = clientAlice.Serve() if err != nil { t.Fatalf("failed to serve manager: %s", err) @@ -428,12 +429,12 @@ func TestNotifierDoubleAdd(t *testing.T) { mCtx, cancel := context.WithCancel(ctx) defer cancel() - clientBob := NewManager(mCtx, toURL(listenerCfg1), "bob") + clientBob := NewManager(mCtx, toURL(listenerCfg1), "bob", iface.DefaultMTU) if err = clientBob.Serve(); err != nil { t.Fatalf("failed to serve manager: %s", err) } - clientAlice := NewManager(mCtx, toURL(listenerCfg1), "alice") + clientAlice := NewManager(mCtx, toURL(listenerCfg1), "alice", iface.DefaultMTU) if err = clientAlice.Serve(); err != nil { t.Fatalf("failed to serve manager: %s", err) } diff --git a/shared/relay/client/picker.go b/shared/relay/client/picker.go index 1cad466ba..b6c7b5e8a 100644 --- a/shared/relay/client/picker.go +++ b/shared/relay/client/picker.go @@ -30,6 +30,7 @@ type ServerPicker struct { TokenStore *auth.TokenStore ServerURLs atomic.Value PeerID string + MTU uint16 } func (sp *ServerPicker) PickServer(parentCtx context.Context) (*Client, error) { @@ -70,7 +71,7 @@ func (sp *ServerPicker) PickServer(parentCtx context.Context) (*Client, error) { func (sp *ServerPicker) startConnection(ctx context.Context, resultChan chan connResult, url string) { log.Infof("try to connecting to relay server: %s", url) - relayClient := NewClient(url, sp.TokenStore, sp.PeerID) + relayClient := NewClient(url, sp.TokenStore, sp.PeerID, sp.MTU) err := relayClient.Connect(ctx) resultChan <- connResult{ RelayClient: relayClient, diff --git a/sharedsock/example/main.go b/sharedsock/example/main.go index 9384d2b1c..da62b276e 100644 --- a/sharedsock/example/main.go +++ b/sharedsock/example/main.go @@ -5,14 +5,16 @@ import ( "os" "os/signal" - "github.com/netbirdio/netbird/sharedsock" log "github.com/sirupsen/logrus" + + "github.com/netbirdio/netbird/client/iface" + "github.com/netbirdio/netbird/sharedsock" ) func main() { port := 51820 - rawSock, err := sharedsock.Listen(port, sharedsock.NewIncomingSTUNFilter()) + rawSock, err := sharedsock.Listen(port, sharedsock.NewIncomingSTUNFilter(), iface.DefaultMTU) if err != nil { panic(err) } diff --git a/sharedsock/sock_linux.go b/sharedsock/sock_linux.go index 1c22e7869..db428515b 100644 --- a/sharedsock/sock_linux.go +++ b/sharedsock/sock_linux.go @@ -36,6 +36,7 @@ type SharedSocket struct { conn4 *socket.Conn conn6 *socket.Conn port int + mtu uint16 routerMux sync.RWMutex router routing.Router packetDemux chan rcvdPacket @@ -56,12 +57,19 @@ var writeSerializerOptions = gopacket.SerializeOptions{ FixLengths: true, } +// Maximum overhead for IP + UDP headers on raw socket +// IPv4: max 60 bytes (20 base + 40 options) + UDP 8 bytes = 68 bytes +// IPv6: 40 bytes + UDP 8 bytes = 48 bytes +// We use the maximum (68) for both IPv4 and IPv6 +const maxIPUDPOverhead = 68 + // Listen creates an IPv4 and IPv6 raw sockets, starts a reader and routing table routines -func Listen(port int, filter BPFFilter) (_ 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, cancel: cancel, + mtu: mtu, port: port, packetDemux: make(chan rcvdPacket), } @@ -222,8 +230,10 @@ func (s *SharedSocket) Close() error { // read start a read loop for a specific receiver and sends the packet to the packetDemux channel func (s *SharedSocket) read(receiver receiver) { + // Buffer reuse is safe: packetDemux is unbuffered, so read() blocks until + // ReadFrom() synchronously processes the packet before next iteration + buf := make([]byte, s.mtu+maxIPUDPOverhead) for { - buf := make([]byte, 1500) n, addr, err := receiver(s.ctx, buf, 0) select { case <-s.ctx.Done(): diff --git a/sharedsock/sock_linux_test.go b/sharedsock/sock_linux_test.go index f5c85119c..a22af461a 100644 --- a/sharedsock/sock_linux_test.go +++ b/sharedsock/sock_linux_test.go @@ -21,7 +21,7 @@ func TestShouldReadSTUNOnReadFrom(t *testing.T) { // create raw socket on a port testingPort := 51821 - rawSock, err := Listen(testingPort, NewIncomingSTUNFilter()) + rawSock, err := Listen(testingPort, NewIncomingSTUNFilter(), 1280) require.NoError(t, err, "received an error while creating STUN listener, error: %s", err) err = rawSock.SetReadDeadline(time.Now().Add(3 * time.Second)) require.NoError(t, err, "unable to set deadline, error: %s", err) @@ -76,7 +76,7 @@ func TestShouldReadSTUNOnReadFrom(t *testing.T) { func TestShouldNotReadNonSTUNPackets(t *testing.T) { testingPort := 39439 - rawSock, err := Listen(testingPort, NewIncomingSTUNFilter()) + rawSock, err := Listen(testingPort, NewIncomingSTUNFilter(), 1280) require.NoError(t, err, "received an error while creating STUN listener, error: %s", err) defer rawSock.Close() @@ -110,7 +110,7 @@ func TestWriteTo(t *testing.T) { defer udpListener.Close() testingPort := 39440 - rawSock, err := Listen(testingPort, NewIncomingSTUNFilter()) + rawSock, err := Listen(testingPort, NewIncomingSTUNFilter(), 1280) require.NoError(t, err, "received an error while creating STUN listener, error: %s", err) defer rawSock.Close() @@ -144,7 +144,7 @@ func TestWriteTo(t *testing.T) { } func TestSharedSocket_Close(t *testing.T) { - rawSock, err := Listen(39440, NewIncomingSTUNFilter()) + rawSock, err := Listen(39440, NewIncomingSTUNFilter(), 1280) require.NoError(t, err, "received an error while creating STUN listener, error: %s", err) errGrp := errgroup.Group{} diff --git a/sharedsock/sock_nolinux.go b/sharedsock/sock_nolinux.go index a36ef67c6..a92f22edf 100644 --- a/sharedsock/sock_nolinux.go +++ b/sharedsock/sock_nolinux.go @@ -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) }