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84 lines
2.2 KiB
84 lines
2.2 KiB
// Copyright 2019 fatedier, fatedier@gmail.com
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package proxy
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import (
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"fmt"
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"github.com/fatedier/frp/models/config"
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frpNet "github.com/fatedier/frp/utils/net"
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)
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type TcpProxy struct {
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*BaseProxy
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cfg *config.TcpProxyConf
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realPort int
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}
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func (pxy *TcpProxy) Run() (remoteAddr string, err error) {
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if pxy.cfg.Group != "" {
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l, realPort, errRet := pxy.rc.TcpGroupCtl.Listen(pxy.name, pxy.cfg.Group, pxy.cfg.GroupKey, pxy.serverCfg.ProxyBindAddr, pxy.cfg.RemotePort)
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if errRet != nil {
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err = errRet
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return
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}
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defer func() {
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if err != nil {
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l.Close()
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}
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}()
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pxy.realPort = realPort
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listener := frpNet.WrapLogListener(l)
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listener.AddLogPrefix(pxy.name)
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pxy.listeners = append(pxy.listeners, listener)
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pxy.Info("tcp proxy listen port [%d] in group [%s]", pxy.cfg.RemotePort, pxy.cfg.Group)
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} else {
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pxy.realPort, err = pxy.rc.TcpPortManager.Acquire(pxy.name, pxy.cfg.RemotePort)
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if err != nil {
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return
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}
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defer func() {
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if err != nil {
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pxy.rc.TcpPortManager.Release(pxy.realPort)
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}
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}()
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listener, errRet := frpNet.ListenTcp(pxy.serverCfg.ProxyBindAddr, pxy.realPort)
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if errRet != nil {
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err = errRet
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return
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}
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listener.AddLogPrefix(pxy.name)
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pxy.listeners = append(pxy.listeners, listener)
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pxy.Info("tcp proxy listen port [%d]", pxy.cfg.RemotePort)
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}
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pxy.cfg.RemotePort = pxy.realPort
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remoteAddr = fmt.Sprintf(":%d", pxy.realPort)
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pxy.startListenHandler(pxy, HandleUserTcpConnection)
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return
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}
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func (pxy *TcpProxy) GetConf() config.ProxyConf {
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return pxy.cfg
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}
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func (pxy *TcpProxy) Close() {
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pxy.BaseProxy.Close()
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if pxy.cfg.Group == "" {
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pxy.rc.TcpPortManager.Release(pxy.realPort)
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}
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}
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