netbird/client/android/client.go
Misha Bragin 2eeed55c18
Bind implementation (#779)
This PR adds supports for the WireGuard userspace implementation
using Bind interface from wireguard-go. 
The newly introduced ICEBind struct implements Bind with UDPMux-based
structs from pion/ice to handle hole punching using ICE.
The core implementation was taken from StdBind of wireguard-go.

The result is a single WireGuard port that is used for host and server reflexive candidates. 
Relay candidates are still handled separately and will be integrated in the following PRs.

ICEBind checks the incoming packets for being STUN or WireGuard ones
and routes them to UDPMux (to handle hole punching) or to WireGuard  respectively.
2023-04-13 17:00:01 +02:00

130 lines
3.1 KiB
Go

package android
import (
"context"
"sync"
log "github.com/sirupsen/logrus"
"github.com/netbirdio/netbird/client/internal"
"github.com/netbirdio/netbird/client/internal/peer"
"github.com/netbirdio/netbird/client/internal/stdnet"
"github.com/netbirdio/netbird/client/system"
"github.com/netbirdio/netbird/formatter"
"github.com/netbirdio/netbird/iface"
)
// ConnectionListener export internal Listener for mobile
type ConnectionListener interface {
peer.Listener
}
// TunAdapter export internal TunAdapter for mobile
type TunAdapter interface {
iface.TunAdapter
}
// IFaceDiscover export internal IFaceDiscover for mobile
type IFaceDiscover interface {
stdnet.ExternalIFaceDiscover
}
func init() {
formatter.SetLogcatFormatter(log.StandardLogger())
}
// Client struct manage the life circle of background service
type Client struct {
cfgFile string
tunAdapter iface.TunAdapter
iFaceDiscover IFaceDiscover
recorder *peer.Status
ctxCancel context.CancelFunc
ctxCancelLock *sync.Mutex
deviceName string
}
// NewClient instantiate a new Client
func NewClient(cfgFile, deviceName string, tunAdapter TunAdapter, iFaceDiscover IFaceDiscover) *Client {
lvl, _ := log.ParseLevel("trace")
log.SetLevel(lvl)
return &Client{
cfgFile: cfgFile,
deviceName: deviceName,
tunAdapter: tunAdapter,
iFaceDiscover: iFaceDiscover,
recorder: peer.NewRecorder(""),
ctxCancelLock: &sync.Mutex{},
}
}
// Run start the internal client. It is a blocker function
func (c *Client) Run(urlOpener URLOpener) error {
cfg, err := internal.UpdateOrCreateConfig(internal.ConfigInput{
ConfigPath: c.cfgFile,
})
if err != nil {
return err
}
c.recorder.UpdateManagementAddress(cfg.ManagementURL.String())
var ctx context.Context
//nolint
ctxWithValues := context.WithValue(context.Background(), system.DeviceNameCtxKey, c.deviceName)
c.ctxCancelLock.Lock()
ctx, c.ctxCancel = context.WithCancel(ctxWithValues)
defer c.ctxCancel()
c.ctxCancelLock.Unlock()
auth := NewAuthWithConfig(ctx, cfg)
err = auth.login(urlOpener)
if err != nil {
return err
}
// todo do not throw error in case of cancelled context
ctx = internal.CtxInitState(ctx)
return internal.RunClient(ctx, cfg, c.recorder, c.tunAdapter, c.iFaceDiscover)
}
// Stop the internal client and free the resources
func (c *Client) Stop() {
c.ctxCancelLock.Lock()
defer c.ctxCancelLock.Unlock()
if c.ctxCancel == nil {
return
}
c.ctxCancel()
}
// PeersList return with the list of the PeerInfos
func (c *Client) PeersList() *PeerInfoArray {
fullStatus := c.recorder.GetFullStatus()
peerInfos := make([]PeerInfo, len(fullStatus.Peers))
for n, p := range fullStatus.Peers {
pi := PeerInfo{
p.IP,
p.FQDN,
p.ConnStatus.String(),
p.Direct,
}
peerInfos[n] = pi
}
return &PeerInfoArray{items: peerInfos}
}
// SetConnectionListener set the network connection listener
func (c *Client) SetConnectionListener(listener ConnectionListener) {
c.recorder.SetConnectionListener(listener)
}
// RemoveConnectionListener remove connection listener
func (c *Client) RemoveConnectionListener() {
c.recorder.RemoveConnectionListener()
}