// Start starts the Point server, and return any error during the process.
// In the case of any errors, the state of the server is unpredicatable.
func (this *Point) Start() error {
if this.port <= 0 {
log.Error("Point: Invalid port ", this.port)
return common.ErrBadConfiguration
}
err := retry.Timed(100 /* times */, 100 /* ms */).On(func() error {
err := this.ich.Start()
if err != nil {
return err
}
log.Warning("Point: started on port ", this.port)
return nil
})
if err != nil {
return err
}
for _, detourHandler := range this.idh {
err := detourHandler.Start()
if err != nil {
return err
}
}
return nil
}
func (this *FreedomConnection) Dispatch(destination v2net.Destination, payload *alloc.Buffer, ray ray.OutboundRay) error {
log.Info("Freedom: Opening connection to ", destination)
defer payload.Release()
defer ray.OutboundInput().Release()
defer ray.OutboundOutput().Close()
var conn internet.Connection
if this.domainStrategy == DomainStrategyUseIP && destination.Address().Family().IsDomain() {
destination = this.ResolveIP(destination)
}
err := retry.Timed(5, 100).On(func() error {
rawConn, err := internet.Dial(this.meta.Address, destination, this.meta.StreamSettings)
if err != nil {
return err
}
conn = rawConn
return nil
})
if err != nil {
log.Warning("Freedom: Failed to open connection to ", destination, ": ", err)
return err
}
defer conn.Close()
input := ray.OutboundInput()
output := ray.OutboundOutput()
if !payload.IsEmpty() {
conn.Write(payload.Value)
}
go func() {
v2writer := v2io.NewAdaptiveWriter(conn)
defer v2writer.Release()
v2io.Pipe(input, v2writer)
if tcpConn, ok := conn.(*tcp.RawConnection); ok {
tcpConn.CloseWrite()
}
}()
var reader io.Reader = conn
timeout := this.timeout
if destination.IsUDP() {
timeout = 16
}
if timeout > 0 {
reader = v2net.NewTimeOutReader(int(timeout) /* seconds */, conn)
}
v2reader := v2io.NewAdaptiveReader(reader)
v2io.Pipe(v2reader, output)
v2reader.Release()
ray.OutboundOutput().Close()
return nil
}
func (this *VMessOutboundHandler) Dispatch(target v2net.Destination, payload *alloc.Buffer, ray ray.OutboundRay) error {
defer ray.OutboundInput().Release()
defer ray.OutboundOutput().Close()
var rec *protocol.ServerSpec
var conn internet.Connection
err := retry.Timed(5, 100).On(func() error {
rec = this.serverPicker.PickServer()
rawConn, err := internet.Dial(this.meta.Address, rec.Destination(), this.meta.StreamSettings)
if err != nil {
return err
}
conn = rawConn
return nil
})
if err != nil {
log.Error("VMess|Outbound: Failed to find an available destination:", err)
return err
}
log.Info("VMess|Outbound: Tunneling request to ", target, " via ", rec.Destination())
command := protocol.RequestCommandTCP
if target.IsUDP() {
command = protocol.RequestCommandUDP
}
request := &protocol.RequestHeader{
Version: encoding.Version,
User: rec.PickUser(),
Command: command,
Address: target.Address(),
Port: target.Port(),
Option: protocol.RequestOptionChunkStream,
}
defer conn.Close()
conn.SetReusable(true)
if conn.Reusable() { // Conn reuse may be disabled on transportation layer
request.Option.Set(protocol.RequestOptionConnectionReuse)
}
input := ray.OutboundInput()
output := ray.OutboundOutput()
var requestFinish, responseFinish sync.Mutex
requestFinish.Lock()
responseFinish.Lock()
session := encoding.NewClientSession(protocol.DefaultIDHash)
go this.handleRequest(session, conn, request, payload, input, &requestFinish)
go this.handleResponse(session, conn, request, rec.Destination(), output, &responseFinish)
requestFinish.Lock()
responseFinish.Lock()
return nil
}
// Starts the inbound connection handler.
func (this *InboundDetourHandlerAlways) Start() error {
for _, ich := range this.ich {
err := retry.Timed(100 /* times */, 100 /* ms */).On(func() error {
err := ich.Start()
if err != nil {
log.Error("Failed to start inbound detour:", err)
return err
}
return nil
})
if err != nil {
return err
}
}
return nil
}
func GenTestBinaryPath() {
testBinaryPathGen.Do(func() {
var tempDir string
err := retry.Timed(5, 100).On(func() error {
dir, err := ioutil.TempDir("", "v2ray")
if err != nil {
return err
}
tempDir = dir
return nil
})
if err != nil {
panic(err)
}
file := filepath.Join(tempDir, "v2ray.test")
if runtime.GOOS == "windows" {
file += ".exe"
}
testBinaryPath = file
fmt.Printf("Generated binary path: %s\n", file)
})
}
func (this *InboundDetourHandlerDynamic) refresh() error {
this.lastRefresh = time.Now()
config := this.config
this.ich2Recyle = this.ichs
newIchs := make([]proxy.InboundHandler, config.GetAllocationStrategyValue().Concurrency.GetValue())
for idx := range newIchs {
err := retry.Timed(5, 100).On(func() error {
port := this.pickUnusedPort()
ichConfig, _ := config.GetTypedSettings()
ich, err := proxyregistry.CreateInboundHandler(config.Settings.Type, this.space, ichConfig, &proxy.InboundHandlerMeta{
Address: config.GetListenOnValue(), Port: port, Tag: config.Tag, StreamSettings: config.StreamSettings})
if err != nil {
delete(this.portsInUse, port)
return err
}
err = ich.Start()
if err != nil {
delete(this.portsInUse, port)
return err
}
this.portsInUse[port] = true
newIchs[idx] = ich
return nil
})
if err != nil {
log.Error("Point: Failed to create inbound connection handler: ", err)
return err
}
}
this.Lock()
this.ichs = newIchs
this.Unlock()
return nil
}