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Add custom Sockopt support (#3517)

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* Add custom sockopt

* Add custom level

* Change field

* Sth left
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风扇滑翔翼 2024-07-10 00:19:31 +08:00 • committed by GitHub
parent ce637c0c23
commit 308f0c64c3
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GPG key ID: B5690EEEBB952194
4 changed files with 321 additions and 135 deletions
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54
transport/internet/sockopt_linux.go
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@ -2,6 +2,7 @@ package internet
import (
"net"
"strconv"
"syscall"
"github.com/xtls/xray-core/common/errors"
@ -107,7 +108,32 @@ func applyOutboundSocketOptions(network string, address string, fd uintptr, conf
return errors.New("failed to set TCP_NODELAY", err)
}
}
if len(config.CustomSockopt) > 0 {
for _, custom := range config.CustomSockopt {
var level = 0x6 // default TCP
var opt int
if len(custom.Opt) == 0 {
return errors.New("No opt!")
} else {
opt, _ = strconv.Atoi(custom.Opt)
}
if custom.Level != "" {
level, _ = strconv.Atoi(custom.Level)
}
if custom.Type == "int" {
value, _ := strconv.Atoi(custom.Value)
if err := syscall.SetsockoptInt(int(fd), level, opt, value); err != nil {
return errors.New("failed to set CustomSockoptInt", opt, value, err)
}
} else if custom.Type == "str" {
if err := syscall.SetsockoptString(int(fd), level, opt, custom.Value); err != nil {
return errors.New("failed to set CustomSockoptString", opt, custom.Value, err)
}
} else {
return errors.New("unknown CustomSockopt type:", custom.Type)
}
}
}
}
if config.Tproxy.IsEnabled() {
@ -176,6 +202,32 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
return errors.New("failed to set TCP_MAXSEG", err)
}
}
if len(config.CustomSockopt) > 0 {
for _, custom := range config.CustomSockopt {
var level = 0x6 // default TCP
var opt int
if len(custom.Opt) == 0 {
return errors.New("No opt!")
} else {
opt, _ = strconv.Atoi(custom.Opt)
}
if custom.Level != "" {
level, _ = strconv.Atoi(custom.Level)
}
if custom.Type == "int" {
value, _ := strconv.Atoi(custom.Value)
if err := syscall.SetsockoptInt(int(fd), level, opt, value); err != nil {
return errors.New("failed to set CustomSockoptInt", opt, value, err)
}
} else if custom.Type == "str" {
if err := syscall.SetsockoptString(int(fd), level, opt, custom.Value); err != nil {
return errors.New("failed to set CustomSockoptString", opt, custom.Value, err)
}
} else {
return errors.New("unknown CustomSockopt type:", custom.Type)
}
}
}
}
if config.Tproxy.IsEnabled() {