mirror of
https://github.com/SagerNet/sing-box.git
synced 2026-04-13 20:28:32 +10:00
refactor: Modular inbounds/outbounds
This commit is contained in:
世界
235
protocol/vmess/inbound.go
Normal file
235
protocol/vmess/inbound.go
Normal file
@@ -0,0 +1,235 @@
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package vmess
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import (
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"context"
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"net"
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"os"
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"github.com/sagernet/sing-box/adapter"
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"github.com/sagernet/sing-box/adapter/inbound"
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"github.com/sagernet/sing-box/common/listener"
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"github.com/sagernet/sing-box/common/mux"
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"github.com/sagernet/sing-box/common/tls"
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"github.com/sagernet/sing-box/common/uot"
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C "github.com/sagernet/sing-box/constant"
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"github.com/sagernet/sing-box/log"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing-box/transport/v2ray"
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"github.com/sagernet/sing-vmess"
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"github.com/sagernet/sing-vmess/packetaddr"
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"github.com/sagernet/sing/common"
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"github.com/sagernet/sing/common/auth"
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E "github.com/sagernet/sing/common/exceptions"
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F "github.com/sagernet/sing/common/format"
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"github.com/sagernet/sing/common/logger"
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M "github.com/sagernet/sing/common/metadata"
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N "github.com/sagernet/sing/common/network"
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"github.com/sagernet/sing/common/ntp"
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)
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func RegisterInbound(registry *inbound.Registry) {
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inbound.Register[option.VMessInboundOptions](registry, C.TypeVMess, NewInbound)
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}
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var _ adapter.TCPInjectableInbound = (*Inbound)(nil)
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type Inbound struct {
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inbound.Adapter
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ctx context.Context
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router adapter.ConnectionRouterEx
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logger logger.ContextLogger
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listener *listener.Listener
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service *vmess.Service[int]
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users []option.VMessUser
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tlsConfig tls.ServerConfig
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transport adapter.V2RayServerTransport
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}
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func NewInbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.VMessInboundOptions) (adapter.Inbound, error) {
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inbound := &Inbound{
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Adapter: inbound.NewAdapter(C.TypeVMess, tag),
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ctx: ctx,
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router: uot.NewRouter(router, logger),
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logger: logger,
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users: options.Users,
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}
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var err error
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inbound.router, err = mux.NewRouterWithOptions(inbound.router, logger, common.PtrValueOrDefault(options.Multiplex))
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if err != nil {
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return nil, err
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}
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var serviceOptions []vmess.ServiceOption
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if timeFunc := ntp.TimeFuncFromContext(ctx); timeFunc != nil {
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serviceOptions = append(serviceOptions, vmess.ServiceWithTimeFunc(timeFunc))
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}
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if options.Transport != nil && options.Transport.Type != "" {
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serviceOptions = append(serviceOptions, vmess.ServiceWithDisableHeaderProtection())
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}
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service := vmess.NewService[int](adapter.NewUpstreamContextHandler(inbound.newConnection, inbound.newPacketConnection, inbound), serviceOptions...)
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inbound.service = service
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err = service.UpdateUsers(common.MapIndexed(options.Users, func(index int, it option.VMessUser) int {
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return index
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}), common.Map(options.Users, func(it option.VMessUser) string {
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return it.UUID
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}), common.Map(options.Users, func(it option.VMessUser) int {
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return it.AlterId
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}))
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if err != nil {
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return nil, err
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}
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if options.TLS != nil {
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inbound.tlsConfig, err = tls.NewServer(ctx, logger, common.PtrValueOrDefault(options.TLS))
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if err != nil {
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return nil, err
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}
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}
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if options.Transport != nil {
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inbound.transport, err = v2ray.NewServerTransport(ctx, logger, common.PtrValueOrDefault(options.Transport), inbound.tlsConfig, (*inboundTransportHandler)(inbound))
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if err != nil {
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return nil, E.Cause(err, "create server transport: ", options.Transport.Type)
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}
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}
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inbound.listener = listener.New(listener.Options{
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Context: ctx,
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Logger: logger,
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Network: []string{N.NetworkTCP},
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Listen: options.ListenOptions,
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ConnectionHandler: inbound,
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})
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return inbound, nil
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}
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func (h *Inbound) Start() error {
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err := h.service.Start()
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if err != nil {
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return err
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}
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if h.tlsConfig != nil {
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err = h.tlsConfig.Start()
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if err != nil {
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return err
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}
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}
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if h.transport == nil {
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return h.listener.Start()
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}
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if common.Contains(h.transport.Network(), N.NetworkTCP) {
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tcpListener, err := h.listener.ListenTCP()
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if err != nil {
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return err
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}
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go func() {
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sErr := h.transport.Serve(tcpListener)
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if sErr != nil && !E.IsClosed(sErr) {
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h.logger.Error("transport serve error: ", sErr)
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}
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}()
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}
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if common.Contains(h.transport.Network(), N.NetworkUDP) {
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udpConn, err := h.listener.ListenUDP()
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if err != nil {
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return err
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}
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go func() {
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sErr := h.transport.ServePacket(udpConn)
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if sErr != nil && !E.IsClosed(sErr) {
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h.logger.Error("transport serve error: ", sErr)
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}
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}()
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}
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return nil
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}
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func (h *Inbound) Close() error {
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return common.Close(
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h.service,
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&h.listener,
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h.tlsConfig,
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h.transport,
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)
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}
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func (h *Inbound) NewConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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var err error
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if h.tlsConfig != nil && h.transport == nil {
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conn, err = tls.ServerHandshake(ctx, conn, h.tlsConfig)
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if err != nil {
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return err
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}
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}
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return h.service.NewConnection(adapter.WithContext(log.ContextWithNewID(ctx), &metadata), conn, adapter.UpstreamMetadata(metadata))
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}
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func (h *Inbound) NewConnectionEx(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
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err := h.NewConnection(ctx, conn, metadata)
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N.CloseOnHandshakeFailure(conn, onClose, err)
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if err != nil {
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h.logger.ErrorContext(ctx, E.Cause(err, "process connection from ", metadata.Source))
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}
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}
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func (h *Inbound) newConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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userIndex, loaded := auth.UserFromContext[int](ctx)
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if !loaded {
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return os.ErrInvalid
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}
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user := h.users[userIndex].Name
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if user == "" {
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user = F.ToString(userIndex)
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} else {
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metadata.User = user
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}
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h.logger.InfoContext(ctx, "[", user, "] inbound connection to ", metadata.Destination)
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return h.router.RouteConnection(ctx, conn, metadata)
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}
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func (h *Inbound) newPacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
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userIndex, loaded := auth.UserFromContext[int](ctx)
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if !loaded {
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return os.ErrInvalid
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}
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user := h.users[userIndex].Name
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if user == "" {
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user = F.ToString(userIndex)
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} else {
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metadata.User = user
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}
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if metadata.Destination.Fqdn == packetaddr.SeqPacketMagicAddress {
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metadata.Destination = M.Socksaddr{}
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conn = packetaddr.NewConn(conn.(vmess.PacketConn), metadata.Destination)
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h.logger.InfoContext(ctx, "[", user, "] inbound packet addr connection")
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} else {
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h.logger.InfoContext(ctx, "[", user, "] inbound packet connection to ", metadata.Destination)
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}
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return h.router.RoutePacketConnection(ctx, conn, metadata)
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}
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var _ adapter.V2RayServerTransportHandler = (*inboundTransportHandler)(nil)
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type inboundTransportHandler Inbound
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func (h *inboundTransportHandler) NewConnectionEx(ctx context.Context, conn net.Conn, source M.Socksaddr, destination M.Socksaddr, onClose N.CloseHandlerFunc) {
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var metadata adapter.InboundContext
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metadata.Inbound = h.Tag()
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metadata.InboundType = h.Type()
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metadata.InboundDetour = h.listener.ListenOptions().Detour
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metadata.InboundOptions = h.listener.ListenOptions().InboundOptions
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metadata.Source = source
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metadata.Destination = destination
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h.logger.InfoContext(ctx, "inbound connection from ", metadata.Source)
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(*Inbound)(h).NewConnectionEx(ctx, conn, metadata, onClose)
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}
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func (h *Inbound) NewError(ctx context.Context, err error) {
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NewError(h.logger, ctx, err)
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}
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// Deprecated: remove
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func NewError(logger logger.ContextLogger, ctx context.Context, err error) {
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common.Close(err)
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if E.IsClosedOrCanceled(err) {
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logger.DebugContext(ctx, "connection closed: ", err)
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return
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}
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logger.ErrorContext(ctx, err)
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}
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205
protocol/vmess/outbound.go
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205
protocol/vmess/outbound.go
Normal file
@@ -0,0 +1,205 @@
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package vmess
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import (
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"context"
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"net"
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"github.com/sagernet/sing-box/adapter"
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"github.com/sagernet/sing-box/adapter/outbound"
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"github.com/sagernet/sing-box/common/dialer"
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"github.com/sagernet/sing-box/common/mux"
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"github.com/sagernet/sing-box/common/tls"
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C "github.com/sagernet/sing-box/constant"
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"github.com/sagernet/sing-box/log"
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"github.com/sagernet/sing-box/option"
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"github.com/sagernet/sing-box/transport/v2ray"
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"github.com/sagernet/sing-vmess"
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"github.com/sagernet/sing-vmess/packetaddr"
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"github.com/sagernet/sing/common"
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E "github.com/sagernet/sing/common/exceptions"
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"github.com/sagernet/sing/common/logger"
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M "github.com/sagernet/sing/common/metadata"
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N "github.com/sagernet/sing/common/network"
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"github.com/sagernet/sing/common/ntp"
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)
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func RegisterOutbound(registry *outbound.Registry) {
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outbound.Register[option.VMessOutboundOptions](registry, C.TypeVMess, NewOutbound)
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}
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type Outbound struct {
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outbound.Adapter
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logger logger.ContextLogger
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dialer N.Dialer
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client *vmess.Client
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serverAddr M.Socksaddr
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multiplexDialer *mux.Client
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tlsConfig tls.Config
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transport adapter.V2RayClientTransport
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packetAddr bool
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xudp bool
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}
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func NewOutbound(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.VMessOutboundOptions) (adapter.Outbound, error) {
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outboundDialer, err := dialer.New(router, options.DialerOptions)
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if err != nil {
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return nil, err
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}
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outbound := &Outbound{
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Adapter: outbound.NewAdapterWithDialerOptions(C.TypeVMess, options.Network.Build(), tag, options.DialerOptions),
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logger: logger,
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dialer: outboundDialer,
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serverAddr: options.ServerOptions.Build(),
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}
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if options.TLS != nil {
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outbound.tlsConfig, err = tls.NewClient(ctx, options.Server, common.PtrValueOrDefault(options.TLS))
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if err != nil {
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return nil, err
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}
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}
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if options.Transport != nil {
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outbound.transport, err = v2ray.NewClientTransport(ctx, outbound.dialer, outbound.serverAddr, common.PtrValueOrDefault(options.Transport), outbound.tlsConfig)
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if err != nil {
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return nil, E.Cause(err, "create client transport: ", options.Transport.Type)
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}
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}
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outbound.multiplexDialer, err = mux.NewClientWithOptions((*vmessDialer)(outbound), logger, common.PtrValueOrDefault(options.Multiplex))
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if err != nil {
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return nil, err
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}
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switch options.PacketEncoding {
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case "":
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case "packetaddr":
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outbound.packetAddr = true
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case "xudp":
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outbound.xudp = true
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default:
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return nil, E.New("unknown packet encoding: ", options.PacketEncoding)
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}
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var clientOptions []vmess.ClientOption
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if timeFunc := ntp.TimeFuncFromContext(ctx); timeFunc != nil {
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clientOptions = append(clientOptions, vmess.ClientWithTimeFunc(timeFunc))
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}
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if options.GlobalPadding {
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clientOptions = append(clientOptions, vmess.ClientWithGlobalPadding())
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}
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if options.AuthenticatedLength {
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clientOptions = append(clientOptions, vmess.ClientWithAuthenticatedLength())
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}
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security := options.Security
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if security == "" {
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security = "auto"
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}
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if security == "auto" && outbound.tlsConfig != nil {
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security = "zero"
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}
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client, err := vmess.NewClient(options.UUID, security, options.AlterId, clientOptions...)
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if err != nil {
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return nil, err
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}
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outbound.client = client
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return outbound, nil
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}
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func (h *Outbound) InterfaceUpdated() {
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if h.transport != nil {
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h.transport.Close()
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}
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if h.multiplexDialer != nil {
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h.multiplexDialer.Reset()
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}
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return
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}
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func (h *Outbound) Close() error {
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return common.Close(common.PtrOrNil(h.multiplexDialer), h.transport)
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}
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func (h *Outbound) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
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if h.multiplexDialer == nil {
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switch N.NetworkName(network) {
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case N.NetworkTCP:
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h.logger.InfoContext(ctx, "outbound connection to ", destination)
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case N.NetworkUDP:
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h.logger.InfoContext(ctx, "outbound packet connection to ", destination)
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}
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return (*vmessDialer)(h).DialContext(ctx, network, destination)
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} else {
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switch N.NetworkName(network) {
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case N.NetworkTCP:
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h.logger.InfoContext(ctx, "outbound multiplex connection to ", destination)
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case N.NetworkUDP:
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h.logger.InfoContext(ctx, "outbound multiplex packet connection to ", destination)
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}
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return h.multiplexDialer.DialContext(ctx, network, destination)
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}
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}
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func (h *Outbound) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
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if h.multiplexDialer == nil {
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h.logger.InfoContext(ctx, "outbound packet connection to ", destination)
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return (*vmessDialer)(h).ListenPacket(ctx, destination)
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} else {
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h.logger.InfoContext(ctx, "outbound multiplex packet connection to ", destination)
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return h.multiplexDialer.ListenPacket(ctx, destination)
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}
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}
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type vmessDialer Outbound
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func (h *vmessDialer) DialContext(ctx context.Context, network string, destination M.Socksaddr) (net.Conn, error) {
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ctx, metadata := adapter.ExtendContext(ctx)
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metadata.Outbound = h.Tag()
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metadata.Destination = destination
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var conn net.Conn
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var err error
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if h.transport != nil {
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conn, err = h.transport.DialContext(ctx)
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} else {
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conn, err = h.dialer.DialContext(ctx, N.NetworkTCP, h.serverAddr)
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if err == nil && h.tlsConfig != nil {
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conn, err = tls.ClientHandshake(ctx, conn, h.tlsConfig)
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}
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}
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if err != nil {
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common.Close(conn)
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return nil, err
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}
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switch N.NetworkName(network) {
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case N.NetworkTCP:
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return h.client.DialEarlyConn(conn, destination), nil
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case N.NetworkUDP:
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return h.client.DialEarlyPacketConn(conn, destination), nil
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default:
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return nil, E.Extend(N.ErrUnknownNetwork, network)
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}
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}
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func (h *vmessDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
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ctx, metadata := adapter.ExtendContext(ctx)
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metadata.Outbound = h.Tag()
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metadata.Destination = destination
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var conn net.Conn
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var err error
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if h.transport != nil {
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conn, err = h.transport.DialContext(ctx)
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} else {
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conn, err = h.dialer.DialContext(ctx, N.NetworkTCP, h.serverAddr)
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if err == nil && h.tlsConfig != nil {
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conn, err = tls.ClientHandshake(ctx, conn, h.tlsConfig)
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}
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}
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if err != nil {
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return nil, err
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}
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if h.packetAddr {
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if destination.IsFqdn() {
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return nil, E.New("packetaddr: domain destination is not supported")
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}
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return packetaddr.NewConn(h.client.DialEarlyPacketConn(conn, M.Socksaddr{Fqdn: packetaddr.SeqPacketMagicAddress}), destination), nil
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} else if h.xudp {
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return h.client.DialEarlyXUDPPacketConn(conn, destination), nil
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} else {
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return h.client.DialEarlyPacketConn(conn, destination), nil
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}
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}
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Reference in New Issue
Block a user