mirror of
https://github.com/netbirdio/netbird.git
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96 lines
2.1 KiB
Go
96 lines
2.1 KiB
Go
package iface
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import (
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"strings"
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"github.com/pion/transport/v2"
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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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address WGAddress
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mtu int
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routes []string
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tunAdapter TunAdapter
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fd int
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name string
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device *device.Device
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iceBind *bind.ICEBind
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}
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func newTunDevice(address WGAddress, mtu int, routes []string, tunAdapter TunAdapter, transportNet transport.Net) *tunDevice {
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return &tunDevice{
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address: address,
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mtu: mtu,
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routes: routes,
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tunAdapter: tunAdapter,
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iceBind: bind.NewICEBind(transportNet),
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}
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}
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func (t *tunDevice) Create() error {
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var err error
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routesString := t.routesToString()
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t.fd, err = t.tunAdapter.ConfigureInterface(t.address.String(), t.mtu, routesString)
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if err != nil {
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log.Errorf("failed to create Android interface: %s", err)
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return err
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}
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tunDevice, name, err := tun.CreateUnmonitoredTUNFromFD(t.fd)
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if err != nil {
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unix.Close(t.fd)
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return err
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}
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t.name = name
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log.Debugf("attaching to interface %v", name)
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t.device = device.NewDevice(tunDevice, 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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err = t.device.Up()
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if err != nil {
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t.device.Close()
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return err
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}
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log.Debugf("device is ready to use: %s", name)
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return 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) 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) Close() (err error) {
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if t.device != nil {
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t.device.Close()
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}
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return
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}
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func (t *tunDevice) routesToString() string {
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return strings.Join(t.routes, ";")
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}
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