{
				// Enable big buffers
				_ = unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_SNDBUF, opts.SendBufSize)

				_ = unix.SetsockoptInt(fd, unix.SOL_SOCKET, unix.SO_RCVBUF, opts.RecvBufSize)
			}

			// Enable TCP open
			// https://lwn.net/Articles/508865/ - 32k queue size.
			_ = syscall.SetsockoptInt(fd, syscall.SOL_TCP, unix.TCP_FASTOPEN, 32*1024)

			// Enable TCP fast connect

package iptables

import (
	"errors"
	"fmt"
	"net"

	"github.com/vishvananda/netlink"
	"golang.org/x/sys/unix"
)

func AddInpodMarkIPRule(cfg *Config) error {
	err := forEachInpodMarkIPRule(cfg, netlink.RuleAdd)
	if errors.Is(err, unix.EEXIST) {
		log.Debugf("Ignoring exists error adding inpod mark ip rule: %v", err)
		return nil
	}
	return err
}

	if err != nil {
		return nil, fmt.Errorf("failed to resolve unix addr: %w", err)
	}
	// remove potentially existing address
	// Remove unix socket before use, if one is leftover from previous CNI restart
	if err := os.Remove(addr); err != nil && !os.IsNotExist(err) {
		// Anything other than "file not found" is an error.
		return nil, fmt.Errorf("failed to remove unix://%s: %w", addr, err)
	}

The [Stat] function now sets the [ModeSocket] bit for
files that are Unix sockets on Windows. These files are identified

		{
			fis:            getNFInfo(16, 16, 1603863445, "36a21454-a2ca-11eb-bbaa-93a81c686f21", nil),
			modTime:        time.Unix(1603863445, 0),
			expectedErr:    nil,
			expectedQuorum: 8,
		},
		{
			fis:            getNFInfo(16, 7, 1603863445, "36a21454-a2ca-11eb-bbaa-93a81c686f21", nil),
			modTime:        time.Unix(1603863445, 0),
			expectedErr:    InsufficientReadQuorum{},
			expectedQuorum: 8,
		},
		{

// limitations under the License.

package nodeagent

import (
	"context"
	"errors"
	"net/netip"
	"runtime"
	"sync/atomic"
	"testing"
	"time"

	"golang.org/x/sys/unix"
	corev1 "k8s.io/api/core/v1"
	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
	"k8s.io/apimachinery/pkg/types"
	"k8s.io/apimachinery/pkg/util/intstr"

	"istio.io/istio/cni/pkg/ipset"
	"istio.io/istio/cni/pkg/iptables"

     */
    private static final String FAMILY_TANDEM = "tandem";

    /**
     * OS family that can be tested for. {@value}
     */
    private static final String FAMILY_UNIX = "unix";

    /**
     * OS family that can be tested for. {@value}
     */
    private static final String FAMILY_OPENVMS = "openvms";

    /**
     * OS family that can be tested for. {@value}
     */

	"github.com/vishvananda/netlink"
	"github.com/vishvananda/netlink/nl"
	"golang.org/x/sys/unix"
)

func RealNlDeps() NetlinkIpsetDeps {
	return &realDeps{}
}

type realDeps struct{}

func (m *realDeps) ipsetIPHashCreate(name string, v6 bool) error {
	var family uint8

	if v6 {
		family = unix.AF_INET6
	} else {
		family = unix.AF_INET
	}

	if err != nil {
		panic(err)
	}

	receivedoob := oob[:oobn]
	msgs, err := unix.ParseSocketControlMessage(receivedoob)
	if err != nil {
		panic(err)
	}

	// we should get 0 or 1 oob messages
	if len(msgs) != 0 {
		assert.Equal(t, len(msgs), 1)
	}

	var fdss []int
	for _, msg := range msgs {
		fds, err := unix.ParseUnixRights(&msg)
		if err != nil {
			panic(err)
		}

On Windows, the mode bits reported by [Lstat] and [Stat] for
reparse points changed. Mount points no longer have [ModeSymlink] set,
and reparse points that are not symlinks, Unix sockets, or dedup files
now always have [ModeIrregular] set.
This behavior is controlled by the `winsymlink` setting.
For Go 1.23, it defaults to `winsymlink=1`.