ginuerzh
85 lines
1.6 KiB
Go
85 lines
1.6 KiB
Go
package tun
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import (
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"context"
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"net"
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"time"
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"github.com/go-gost/core/handler"
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md "github.com/go-gost/core/metadata"
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ctxvalue "github.com/go-gost/x/ctx"
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"github.com/go-gost/x/registry"
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"github.com/xjasonlyu/tun2socks/v2/core"
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)
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func init() {
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registry.HandlerRegistry().Register("vtun", NewHandler)
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}
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type tunHandler struct {
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options handler.Options
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}
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func NewHandler(opts ...handler.Option) handler.Handler {
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options := handler.Options{}
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for _, opt := range opts {
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opt(&options)
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}
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return &tunHandler{
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options: options,
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}
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}
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func (h *tunHandler) Init(md md.Metadata) (err error) {
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if err = h.parseMetadata(md); err != nil {
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return
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}
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return
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}
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func (h *tunHandler) Handle(ctx context.Context, conn net.Conn, opts ...handler.HandleOption) error {
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defer conn.Close()
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log := h.options.Logger
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start := time.Now()
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log = log.WithFields(map[string]any{
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"remote": conn.RemoteAddr().String(),
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"local": conn.LocalAddr().String(),
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"sid": ctxvalue.SidFromContext(ctx),
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})
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log.Infof("%s <> %s", conn.RemoteAddr(), conn.LocalAddr())
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defer func() {
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log.WithFields(map[string]any{
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"duration": time.Since(start),
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}).Infof("%s >< %s", conn.RemoteAddr(), conn.LocalAddr())
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}()
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ep, err := newEndpoint(conn, 1420, 0, log)
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if err != nil {
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return err
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}
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th := newTransportHandler(log)
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th.ProcessAsync()
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defer th.Close()
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stack, err := core.CreateStack(&core.Config{
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LinkEndpoint: ep,
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TransportHandler: th,
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})
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if err != nil {
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return err
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}
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defer stack.Close()
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log.Debugf("is attached: %v", ep.IsAttached())
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<-ctx.Done()
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return nil
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}
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