mirror of
https://github.com/SagerNet/sing-box.git
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71 lines
2.1 KiB
Go
71 lines
2.1 KiB
Go
package redirect
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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/inbound"
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"github.com/sagernet/sing-box/common/listener"
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"github.com/sagernet/sing-box/common/redir"
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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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M "github.com/sagernet/sing/common/metadata"
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N "github.com/sagernet/sing/common/network"
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)
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func RegisterRedirect(registry *inbound.Registry) {
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inbound.Register[option.RedirectInboundOptions](registry, C.TypeRedirect, NewRedirect)
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}
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type Redirect struct {
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inbound.Adapter
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router adapter.Router
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logger log.ContextLogger
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listener *listener.Listener
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}
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func NewRedirect(ctx context.Context, router adapter.Router, logger log.ContextLogger, tag string, options option.RedirectInboundOptions) (adapter.Inbound, error) {
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redirect := &Redirect{
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Adapter: inbound.NewAdapter(C.TypeRedirect, tag),
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router: router,
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logger: logger,
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}
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redirect.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: redirect,
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})
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return redirect, nil
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}
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func (h *Redirect) Start(stage adapter.StartStage) error {
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if stage != adapter.StartStateStart {
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return nil
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}
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return h.listener.Start()
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}
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func (h *Redirect) Close() error {
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return h.listener.Close()
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}
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func (h *Redirect) NewConnectionEx(ctx context.Context, conn net.Conn, metadata adapter.InboundContext, onClose N.CloseHandlerFunc) {
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destination, err := redir.GetOriginalDestination(conn)
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if err != nil {
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conn.Close()
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h.logger.ErrorContext(ctx, "process connection from ", conn.RemoteAddr(), ": get redirect destination: ", err)
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return
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}
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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.Destination = M.SocksaddrFromNetIP(destination)
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h.logger.InfoContext(ctx, "inbound connection to ", metadata.Destination)
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h.router.RouteConnectionEx(ctx, conn, metadata, onClose)
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}
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