mirror of
https://github.com/fatedier/frp.git
synced 2026-03-08 10:59:11 +08:00
c62a1da161
Fix connection leaks in multiple error paths across client and server: - server/proxy/http: close tmpConn when WithEncryption fails - client/proxy: close localConn when ProxyProtocol WriteTo fails - client/visitor/sudp: close visitorConn on all error paths in getNewVisitorConn - client/visitor/xtcp: close tunnelConn when WithEncryption fails - client/visitor/xtcp: close lConn when NewKCPConnFromUDP fails - pkg/plugin/client/unix_domain_socket: close localConn and connInfo.Conn when WriteTo fails, close connInfo.Conn when DialUnix fails - pkg/plugin/client/tls2raw: close tlsConn when Handshake or Dial fails
78 lines
1.9 KiB
Go
78 lines
1.9 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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//go:build !frps
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package client
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import (
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"context"
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"net"
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libio "github.com/fatedier/golib/io"
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v1 "github.com/fatedier/frp/pkg/config/v1"
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"github.com/fatedier/frp/pkg/util/xlog"
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)
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func init() {
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Register(v1.PluginUnixDomainSocket, NewUnixDomainSocketPlugin)
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}
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type UnixDomainSocketPlugin struct {
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UnixAddr *net.UnixAddr
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}
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func NewUnixDomainSocketPlugin(_ PluginContext, options v1.ClientPluginOptions) (p Plugin, err error) {
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opts := options.(*v1.UnixDomainSocketPluginOptions)
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unixAddr, errRet := net.ResolveUnixAddr("unix", opts.UnixPath)
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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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p = &UnixDomainSocketPlugin{
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UnixAddr: unixAddr,
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}
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return
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}
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func (uds *UnixDomainSocketPlugin) Handle(ctx context.Context, connInfo *ConnectionInfo) {
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xl := xlog.FromContextSafe(ctx)
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localConn, err := net.DialUnix("unix", nil, uds.UnixAddr)
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if err != nil {
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xl.Warnf("dial to uds %s error: %v", uds.UnixAddr, err)
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connInfo.Conn.Close()
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return
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}
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if connInfo.ProxyProtocolHeader != nil {
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if _, err := connInfo.ProxyProtocolHeader.WriteTo(localConn); err != nil {
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localConn.Close()
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connInfo.Conn.Close()
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return
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}
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}
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libio.Join(localConn, connInfo.Conn)
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}
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func (uds *UnixDomainSocketPlugin) Name() string {
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return v1.PluginUnixDomainSocket
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}
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func (uds *UnixDomainSocketPlugin) Close() error {
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return nil
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}
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