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https://github.com/SagerNet/sing-box.git
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Skip bind connection with private destination to interface
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parent
b797cdf91e
commit
e839beb73b
19
common/dialer/bind.go
Normal file
19
common/dialer/bind.go
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@ -0,0 +1,19 @@
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package dialer
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import (
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"syscall"
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"github.com/sagernet/sing/common/control"
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M "github.com/sagernet/sing/common/metadata"
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N "github.com/sagernet/sing/common/network"
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)
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func skipIfPrivate(next control.Func) control.Func {
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return func(network, address string, conn syscall.RawConn) error {
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destination := M.ParseSocksaddr(address)
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if !N.IsPublicAddr(destination.Addr) {
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return nil
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}
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return next(network, address, conn)
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}
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}
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@ -61,25 +61,25 @@ func NewDefault(router adapter.Router, options option.DialerOptions) *DefaultDia
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var listener net.ListenConfig
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if options.BindInterface != "" {
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warnBindInterfaceOnUnsupportedPlatform.Check()
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bindFunc := control.BindToInterface(router.InterfaceBindManager(), options.BindInterface)
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bindFunc := skipIfPrivate(control.BindToInterface(router.InterfaceBindManager(), options.BindInterface))
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dialer.Control = control.Append(dialer.Control, bindFunc)
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listener.Control = control.Append(listener.Control, bindFunc)
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} else if router.AutoDetectInterface() {
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if C.IsWindows {
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bindFunc := control.BindToInterfaceIndexFunc(func() int {
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bindFunc := skipIfPrivate(control.BindToInterfaceIndexFunc(func() int {
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return router.InterfaceMonitor().DefaultInterfaceIndex()
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})
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}))
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dialer.Control = control.Append(dialer.Control, bindFunc)
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listener.Control = control.Append(listener.Control, bindFunc)
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} else {
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bindFunc := control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string {
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bindFunc := skipIfPrivate(control.BindToInterfaceFunc(router.InterfaceBindManager(), func() string {
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return router.InterfaceMonitor().DefaultInterfaceName()
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})
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}))
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dialer.Control = control.Append(dialer.Control, bindFunc)
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listener.Control = control.Append(listener.Control, bindFunc)
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}
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} else if router.DefaultInterface() != "" {
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bindFunc := control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface())
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bindFunc := skipIfPrivate(control.BindToInterface(router.InterfaceBindManager(), router.DefaultInterface()))
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dialer.Control = control.Append(dialer.Control, bindFunc)
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listener.Control = control.Append(listener.Control, bindFunc)
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}
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