sing-box/common/dialer/default.go
2022-07-18 20:53:13 +08:00

79 lines
3 KiB
Go

package dialer
import (
"context"
"net"
"runtime"
"time"
"github.com/sagernet/sing-box/adapter"
C "github.com/sagernet/sing-box/constant"
"github.com/sagernet/sing-box/option"
"github.com/sagernet/sing/common/control"
M "github.com/sagernet/sing/common/metadata"
"github.com/database64128/tfo-go"
)
type DefaultDialer struct {
tfo.Dialer
net.ListenConfig
}
func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDialer {
var dialer net.Dialer
var listener net.ListenConfig
if options.BindInterface != "" {
dialer.Control = control.Append(dialer.Control, control.BindToInterface(router.InterfaceBindManager(), options.BindInterface))
listener.Control = control.Append(listener.Control, control.BindToInterface(router.InterfaceBindManager(), options.BindInterface))
} else if router.AutoDetectInterface() {
if runtime.GOOS == "windows" {
dialer.Control = control.Append(dialer.Control, control.BindToInterfaceIndexFunc(func() int {
return router.AutoDetectInterfaceIndex()
}))
listener.Control = control.Append(listener.Control, control.BindToInterfaceIndexFunc(func() int {
return router.AutoDetectInterfaceIndex()
}))
} else {
dialer.Control = control.Append(dialer.Control, control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string {
return router.AutoDetectInterfaceName()
}))
listener.Control = control.Append(listener.Control, control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string {
return router.AutoDetectInterfaceName()
}))
}
} else if router.DefaultInterface() != "" {
dialer.Control = control.Append(dialer.Control, control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface()))
listener.Control = control.Append(listener.Control, control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface()))
}
if options.RoutingMark != 0 {
dialer.Control = control.Append(dialer.Control, control.RoutingMark(options.RoutingMark))
listener.Control = control.Append(listener.Control, control.RoutingMark(options.RoutingMark))
}
if options.ReuseAddr {
listener.Control = control.Append(listener.Control, control.ReuseAddr())
}
if options.ProtectPath != "" {
dialer.Control = control.Append(dialer.Control, control.ProtectPath(options.ProtectPath))
listener.Control = control.Append(listener.Control, control.ProtectPath(options.ProtectPath))
}
if options.ConnectTimeout != 0 {
dialer.Timeout = time.Duration(options.ConnectTimeout)
} else {
dialer.Timeout = C.DefaultTCPTimeout
}
return &DefaultDialer{tfo.Dialer{Dialer: dialer, DisableTFO: !options.TCPFastOpen}, listener}
}
func (d *DefaultDialer) DialContext(ctx context.Context, network string, address M.Socksaddr) (net.Conn, error) {
return d.Dialer.DialContext(ctx, network, address.String())
}
func (d *DefaultDialer) ListenPacket(ctx context.Context, destination M.Socksaddr) (net.PacketConn, error) {
return d.ListenConfig.ListenPacket(ctx, C.NetworkUDP, "")
}
func (d *DefaultDialer) Upstream() any {
return &d.Dialer
}