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Sockopt: Allow listen v6only work for Windows & Darwin #4571

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Merged
RPRX merged 3 commits into from
Mar 31, 2025
Merged

Sockopt: Allow listen v6only work for Windows & Darwin #4571

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5842bbc
Sockopt: Add Windows `V6Only`
xqzr Mar 30, 2025
946c480
Update sockopt_darwin.go
RPRX Mar 31, 2025
4b074a0
Update sockopt_windows.go
RPRX Mar 31, 2025
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6 changes: 6 additions & 0 deletions transport/internet/sockopt_darwin.go
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Original file line number Diff line number Diff line change
Expand Up @@ -182,6 +182,12 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
}
}

if config.V6Only {
if err := unix.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_V6ONLY, 1); err != nil {
return errors.New("failed to set IPV6_V6ONLY").Base(err)
}
}

return nil
}

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7 changes: 7 additions & 0 deletions transport/internet/sockopt_windows.go
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,7 @@ const (
IPV6_UNICAST_IF = 31
IP_MULTICAST_IF = 9
IPV6_MULTICAST_IF = 9
IPV6_V6ONLY = 27
)

func setTFO(fd syscall.Handle, tfo int) error {
Expand Down Expand Up @@ -90,6 +91,12 @@ func applyInboundSocketOptions(network string, fd uintptr, config *SocketConfig)
}
}

if config.V6Only {
if err := syscall.SetsockoptInt(syscall.Handle(fd), syscall.IPPROTO_IPV6, IPV6_V6ONLY, 1); err != nil {
return errors.New("failed to set IPV6_V6ONLY").Base(err)
}
}

return nil
}

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