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Use SO_REUSEADDR
instead of SO_REUSEPORT
on Linux
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parent
c55611a478
commit
0a1a155e66
@ -15,15 +15,19 @@ func (m *Multicast) _multicastStarted() {
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func (m *Multicast) multicastReuse(network string, address string, c syscall.RawConn) error {
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var control error
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var reuseport error
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var reuseaddr error
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control = c.Control(func(fd uintptr) {
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reuseport = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEPORT, 1)
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// Previously we used SO_REUSEPORT here, but that meant that machines running
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// Yggdrasil nodes as different users would inevitably fail with EADDRINUSE.
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// The behaviour for multicast is similar with both, so we'll use SO_REUSEADDR
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// instead.
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reuseaddr = unix.SetsockoptInt(int(fd), unix.SOL_SOCKET, unix.SO_REUSEADDR, 1)
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})
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switch {
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case reuseport != nil:
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return reuseport
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case reuseaddr != nil:
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return reuseaddr
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default:
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return control
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}
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