nebula/udp_darwin.go

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2019-11-19 10:00:20 -07:00
package nebula
// Darwin support is primarily implemented in udp_generic, besides NewListenConfig
import (
"fmt"
"net"
"syscall"
"golang.org/x/sys/unix"
)
func NewListenConfig(multi bool) net.ListenConfig {
return net.ListenConfig{
Control: func(network, address string, c syscall.RawConn) error {
if multi {
var controlErr error
err := c.Control(func(fd uintptr) {
if err := syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, unix.SO_REUSEPORT, 1); err != nil {
controlErr = fmt.Errorf("SO_REUSEPORT failed: %v", err)
return
}
})
if err != nil {
return err
}
if controlErr != nil {
return controlErr
}
}
return nil
},
}
}