clash/listener/inbound/tproxy.go

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package inbound
import (
"fmt"
C "github.com/Dreamacro/clash/constant"
"github.com/Dreamacro/clash/listener/tproxy"
"github.com/Dreamacro/clash/log"
)
type TProxyOption struct {
BaseOption
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UDP bool `inbound:"udp,omitempty"`
}
func (o TProxyOption) Equal(config C.InboundConfig) bool {
return optionToString(o) == optionToString(config)
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}
type TProxy struct {
*Base
config *TProxyOption
lUDP *tproxy.UDPListener
lTCP *tproxy.Listener
udp bool
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}
func NewTProxy(options *TProxyOption) (*TProxy, error) {
base, err := NewBase(&options.BaseOption)
if err != nil {
return nil, err
}
return &TProxy{
Base: base,
config: options,
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udp: options.UDP,
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}, nil
}
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// Config implements constant.InboundListener
func (t *TProxy) Config() C.InboundConfig {
return t.config
}
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// Address implements constant.InboundListener
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func (t *TProxy) Address() string {
return t.lTCP.Address()
}
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// Listen implements constant.InboundListener
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func (t *TProxy) Listen(tcpIn chan<- C.ConnContext, udpIn chan<- C.PacketAdapter) error {
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var err error
t.lTCP, err = tproxy.NewWithInfos(t.RawAddress(), t.name, t.preferRulesName, tcpIn)
if err != nil {
return err
}
if t.udp {
if t.lUDP != nil {
t.lUDP, err = tproxy.NewUDPWithInfos(t.Address(), t.name, t.preferRulesName, udpIn)
if err != nil {
return err
}
}
}
log.Infoln("TProxy[%s] proxy listening at: %s", t.Name(), t.Address())
return nil
}
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// Close implements constant.InboundListener
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func (t *TProxy) Close() error {
var tcpErr error
var udpErr error
if t.lTCP != nil {
tcpErr = t.lTCP.Close()
}
if t.lUDP != nil {
udpErr = t.lUDP.Close()
}
if tcpErr != nil && udpErr != nil {
return fmt.Errorf("tcp close err: %s and udp close err: %s", tcpErr, udpErr)
}
if tcpErr != nil {
return tcpErr
}
if udpErr != nil {
return udpErr
}
return nil
}
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var _ C.InboundListener = (*TProxy)(nil)