mirror of https://github.com/slackhq/nebula.git
59 lines
1.2 KiB
Go
59 lines
1.2 KiB
Go
//go:build !e2e_testing
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// +build !e2e_testing
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package udp
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// Darwin support is primarily implemented in udp_generic, besides NewListenConfig
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import (
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"fmt"
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"net"
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"net/netip"
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"syscall"
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"github.com/sirupsen/logrus"
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"golang.org/x/sys/unix"
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)
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func NewListener(l *logrus.Logger, ip netip.Addr, port int, multi bool, batch int) (Conn, error) {
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return NewGenericListener(l, ip, port, multi, batch)
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}
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func NewListenConfig(multi bool) net.ListenConfig {
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return net.ListenConfig{
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Control: func(network, address string, c syscall.RawConn) error {
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if multi {
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var controlErr error
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err := c.Control(func(fd uintptr) {
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if err := syscall.SetsockoptInt(int(fd), syscall.SOL_SOCKET, unix.SO_REUSEPORT, 1); err != nil {
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controlErr = fmt.Errorf("SO_REUSEPORT failed: %v", err)
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return
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}
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})
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if err != nil {
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return err
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}
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if controlErr != nil {
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return controlErr
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}
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}
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return nil
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},
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}
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}
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func (u *GenericConn) Rebind() error {
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rc, err := u.UDPConn.SyscallConn()
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if err != nil {
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return err
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}
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return rc.Control(func(fd uintptr) {
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err := syscall.SetsockoptInt(int(fd), unix.IPPROTO_IPV6, unix.IPV6_BOUND_IF, 0)
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if err != nil {
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u.l.WithError(err).Error("Failed to rebind udp socket")
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}
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})
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}
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