Feature: bump gVisor to latest version (#376)

core/device/fdbased/open_unix.go

@@ -0,0 +1,23 @@
+//go:build unix && !linux
+
+package fdbased
+
+import (
+	"fmt"
+	"os"
+
+	"github.com/xjasonlyu/tun2socks/v2/core/device"
+	"github.com/xjasonlyu/tun2socks/v2/core/device/iobased"
+)
+
+func open(fd int, mtu uint32, offset int) (device.Device, error) {
+	f := &FD{fd: fd, mtu: mtu}
+
+	ep, err := iobased.New(os.NewFile(uintptr(fd), f.Name()), mtu, offset)
+	if err != nil {
+		return nil, fmt.Errorf("create endpoint: %w", err)
+	}
+	f.LinkEndpoint = ep
+
+	return f, nil
+}