mirror of
https://github.com/netbirdio/netbird.git
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134 lines
2.9 KiB
Go
134 lines
2.9 KiB
Go
//go:build ios
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// +build ios
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package iface
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import (
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"os"
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"github.com/pion/transport/v3"
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log "github.com/sirupsen/logrus"
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"golang.org/x/sys/unix"
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"golang.zx2c4.com/wireguard/device"
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"golang.zx2c4.com/wireguard/tun"
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"github.com/netbirdio/netbird/iface/bind"
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)
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type tunDevice struct {
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name string
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address WGAddress
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port int
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key string
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iceBind *bind.ICEBind
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tunFd int
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device *device.Device
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wrapper *DeviceWrapper
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udpMux *bind.UniversalUDPMuxDefault
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configurer wgConfigurer
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}
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func newTunDevice(name string, address WGAddress, port int, key string, transportNet transport.Net, tunFd int, filterFn bind.FilterFn) *tunDevice {
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return &tunDevice{
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name: name,
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address: address,
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port: port,
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key: key,
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iceBind: bind.NewICEBind(transportNet, filterFn),
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tunFd: tunFd,
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}
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}
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func (t *tunDevice) Create() (wgConfigurer, error) {
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log.Infof("create tun interface")
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dupTunFd, err := unix.Dup(t.tunFd)
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if err != nil {
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log.Errorf("Unable to dup tun fd: %v", err)
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return nil, err
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}
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err = unix.SetNonblock(dupTunFd, true)
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if err != nil {
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log.Errorf("Unable to set tun fd as non blocking: %v", err)
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_ = unix.Close(dupTunFd)
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return nil, err
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}
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tunDevice, err := tun.CreateTUNFromFile(os.NewFile(uintptr(dupTunFd), "/dev/tun"), 0)
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if err != nil {
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log.Errorf("Unable to create new tun device from fd: %v", err)
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_ = unix.Close(dupTunFd)
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return nil, err
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}
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t.wrapper = newDeviceWrapper(tunDevice)
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log.Debug("Attaching to interface")
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t.device = device.NewDevice(t.wrapper, t.iceBind, device.NewLogger(device.LogLevelSilent, "[wiretrustee] "))
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// without this property mobile devices can discover remote endpoints if the configured one was wrong.
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// this helps with support for the older NetBird clients that had a hardcoded direct mode
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// t.device.DisableSomeRoamingForBrokenMobileSemantics()
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t.configurer = newWGUSPConfigurer(t.device, t.name)
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err = t.configurer.configureInterface(t.key, t.port)
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if err != nil {
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t.device.Close()
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t.configurer.close()
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return nil, err
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}
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return t.configurer, nil
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}
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func (t *tunDevice) Up() (*bind.UniversalUDPMuxDefault, error) {
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err := t.device.Up()
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if err != nil {
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return nil, err
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}
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udpMux, err := t.iceBind.GetICEMux()
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if err != nil {
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return nil, err
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}
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t.udpMux = udpMux
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log.Debugf("device is ready to use: %s", t.name)
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return udpMux, nil
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}
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func (t *tunDevice) Device() *device.Device {
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return t.device
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}
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func (t *tunDevice) DeviceName() string {
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return t.name
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}
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func (t *tunDevice) Close() error {
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if t.configurer != nil {
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t.configurer.close()
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}
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if t.device != nil {
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t.device.Close()
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t.device = nil
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}
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if t.udpMux != nil {
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return t.udpMux.Close()
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}
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return nil
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}
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func (t *tunDevice) WgAddress() WGAddress {
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return t.address
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}
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func (t *tunDevice) UpdateAddr(addr WGAddress) error {
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// todo implement
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return nil
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}
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func (t *tunDevice) Wrapper() *DeviceWrapper {
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return t.wrapper
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}
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