5b6f18084c
Similar with wget(--bind-address) or cURL(--interface), you can bind with a specific network interface. The parameter can be a host name. plugin_bind_addr = 172.21.0.107
93 lines
2.2 KiB
Go
93 lines
2.2 KiB
Go
// Copyright 2017 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 plugin
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import (
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logger "github.com/fatedier/frp/utils/log"
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frpNet "github.com/fatedier/frp/utils/net"
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"golang.org/x/net/context"
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"io"
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"io/ioutil"
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"log"
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"net"
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gosocks5 "github.com/armon/go-socks5"
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)
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const PluginSocks5 = "socks5"
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func init() {
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Register(PluginSocks5, NewSocks5Plugin)
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}
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type Socks5Plugin struct {
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Server *gosocks5.Server
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user string
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passwd string
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}
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func NewSocks5Plugin(params map[string]string) (p Plugin, err error) {
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user := params["plugin_user"]
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passwd := params["plugin_passwd"]
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bindAddr := params["plugin_bind_addr"]
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cfg := &gosocks5.Config{
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Logger: log.New(ioutil.Discard, "", log.LstdFlags),
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}
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if user != "" || passwd != "" {
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cfg.Credentials = gosocks5.StaticCredentials(map[string]string{user: passwd})
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}
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if bindAddr != "" {
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// bindAddr can be hostname
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localAddr, err := net.ResolveIPAddr("ip", bindAddr)
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if err != nil {
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logger.Warn("Failed to resolve socks5 bind address: %v", bindAddr)
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} else {
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logger.Info("Bind address resolve to: %v", localAddr.IP)
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localTCPAddr := net.TCPAddr{
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IP: localAddr.IP,
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}
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cfg.Dial = func(ctx context.Context, net_, addr string) (net.Conn, error) {
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d := net.Dialer{
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LocalAddr: &localTCPAddr,
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}
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return d.Dial(net_, addr)
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}
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}
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}
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sp := &Socks5Plugin{}
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sp.Server, err = gosocks5.New(cfg)
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p = sp
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return
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}
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func (sp *Socks5Plugin) Handle(conn io.ReadWriteCloser, realConn frpNet.Conn) {
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defer conn.Close()
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wrapConn := frpNet.WrapReadWriteCloserToConn(conn, realConn)
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sp.Server.ServeConn(wrapConn)
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}
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func (sp *Socks5Plugin) Name() string {
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return PluginSocks5
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}
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func (sp *Socks5Plugin) Close() error {
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return nil
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}
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