mirror of
https://github.com/SagerNet/sing-box.git
synced 2024-11-22 08:31:30 +00:00
84 lines
2.6 KiB
Go
84 lines
2.6 KiB
Go
package inbound
|
|
|
|
import (
|
|
"context"
|
|
"net"
|
|
|
|
"github.com/sagernet/sing-box/adapter"
|
|
"github.com/sagernet/sing-box/common/proxyproto"
|
|
"github.com/sagernet/sing-box/log"
|
|
E "github.com/sagernet/sing/common/exceptions"
|
|
M "github.com/sagernet/sing/common/metadata"
|
|
N "github.com/sagernet/sing/common/network"
|
|
"github.com/sagernet/tfo-go"
|
|
)
|
|
|
|
func (a *myInboundAdapter) ListenTCP() (net.Listener, error) {
|
|
var err error
|
|
bindAddr := M.SocksaddrFrom(a.listenOptions.Listen.Build(), a.listenOptions.ListenPort)
|
|
var tcpListener net.Listener
|
|
if !a.listenOptions.TCPFastOpen {
|
|
var listenConfig net.ListenConfig
|
|
if a.listenOptions.TCPMultiPath {
|
|
if !multipathTCPAvailable {
|
|
return nil, E.New("MultiPath TCP requires go1.21, please recompile your binary.")
|
|
}
|
|
setMultiPathTCP(&listenConfig)
|
|
}
|
|
tcpListener, err = listenConfig.Listen(a.ctx, M.NetworkFromNetAddr(N.NetworkTCP, bindAddr.Addr), bindAddr.String())
|
|
} else {
|
|
tcpListener, err = tfo.ListenTCP(M.NetworkFromNetAddr(N.NetworkTCP, bindAddr.Addr), bindAddr.TCPAddr())
|
|
}
|
|
if err == nil {
|
|
a.logger.Info("tcp server started at ", tcpListener.Addr())
|
|
}
|
|
if a.listenOptions.ProxyProtocol {
|
|
a.logger.Debug("proxy protocol enabled")
|
|
tcpListener = &proxyproto.Listener{Listener: tcpListener, AcceptNoHeader: a.listenOptions.ProxyProtocolAcceptNoHeader}
|
|
}
|
|
a.tcpListener = tcpListener
|
|
return tcpListener, err
|
|
}
|
|
|
|
func (a *myInboundAdapter) loopTCPIn() {
|
|
tcpListener := a.tcpListener
|
|
for {
|
|
conn, err := tcpListener.Accept()
|
|
if err != nil {
|
|
//goland:noinspection GoDeprecation
|
|
//nolint:staticcheck
|
|
if netError, isNetError := err.(net.Error); isNetError && netError.Temporary() {
|
|
a.logger.Error(err)
|
|
continue
|
|
}
|
|
if a.inShutdown.Load() && E.IsClosed(err) {
|
|
return
|
|
}
|
|
a.tcpListener.Close()
|
|
a.logger.Error("serve error: ", err)
|
|
continue
|
|
}
|
|
go a.injectTCP(conn, adapter.InboundContext{})
|
|
}
|
|
}
|
|
|
|
func (a *myInboundAdapter) injectTCP(conn net.Conn, metadata adapter.InboundContext) {
|
|
ctx := log.ContextWithNewID(a.ctx)
|
|
metadata = a.createMetadata(conn, metadata)
|
|
a.logger.InfoContext(ctx, "inbound connection from ", metadata.Source)
|
|
hErr := a.connHandler.NewConnection(ctx, conn, metadata)
|
|
if hErr != nil {
|
|
conn.Close()
|
|
a.NewError(ctx, E.Cause(hErr, "process connection from ", metadata.Source))
|
|
}
|
|
}
|
|
|
|
func (a *myInboundAdapter) routeTCP(ctx context.Context, conn net.Conn, metadata adapter.InboundContext) {
|
|
a.logger.InfoContext(ctx, "inbound connection from ", metadata.Source)
|
|
hErr := a.newConnection(ctx, conn, metadata)
|
|
if hErr != nil {
|
|
conn.Close()
|
|
a.NewError(ctx, E.Cause(hErr, "process connection from ", metadata.Source))
|
|
}
|
|
}
|