mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-29 20:11:28 +00:00
79 lines
2.6 KiB
Go
79 lines
2.6 KiB
Go
package mux
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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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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-mux"
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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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N "github.com/sagernet/sing/common/network"
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)
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type Router struct {
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router adapter.ConnectionRouterEx
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service *mux.Service
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}
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func NewRouterWithOptions(router adapter.ConnectionRouterEx, logger logger.ContextLogger, options option.InboundMultiplexOptions) (adapter.ConnectionRouterEx, error) {
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if !options.Enabled {
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return router, nil
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}
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var brutalOptions mux.BrutalOptions
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if options.Brutal != nil && options.Brutal.Enabled {
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brutalOptions = mux.BrutalOptions{
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Enabled: true,
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SendBPS: uint64(options.Brutal.UpMbps * C.MbpsToBps),
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ReceiveBPS: uint64(options.Brutal.DownMbps * C.MbpsToBps),
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}
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if brutalOptions.SendBPS < mux.BrutalMinSpeedBPS {
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return nil, E.New("brutal: invalid upload speed")
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}
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if brutalOptions.ReceiveBPS < mux.BrutalMinSpeedBPS {
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return nil, E.New("brutal: invalid download speed")
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}
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}
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service, err := mux.NewService(mux.ServiceOptions{
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NewStreamContext: func(ctx context.Context, conn net.Conn) context.Context {
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return log.ContextWithNewID(ctx)
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},
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Logger: logger,
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Handler: adapter.NewRouteContextHandler(router, logger),
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Padding: options.Padding,
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Brutal: brutalOptions,
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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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return &Router{router, service}, nil
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}
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func (r *Router) RouteConnection(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) error {
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if metadata.Destination == mux.Destination {
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// TODO: check if WithContext is necessary
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return r.service.NewConnection(adapter.WithContext(ctx, &metadata), conn, adapter.UpstreamMetadata(metadata))
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} else {
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return r.router.RouteConnection(ctx, conn, metadata)
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}
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}
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func (r *Router) RoutePacketConnection(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext) error {
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return r.router.RoutePacketConnection(ctx, conn, metadata)
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}
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func (r *Router) RouteConnectionEx(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
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if metadata.Destination == mux.Destination {
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r.service.NewConnectionEx(adapter.WithContext(ctx, &metadata), conn, metadata.Source, metadata.Destination, onClose)
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return
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}
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r.router.RouteConnectionEx(ctx, conn, metadata, onClose)
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}
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func (r *Router) RoutePacketConnectionEx(ctx context.Context, conn N.PacketConn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
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r.router.RoutePacketConnectionEx(ctx, conn, metadata, onClose)
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}
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