--- /dev/null
+/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
+#ifndef _XT_SOCKET_H
+#define _XT_SOCKET_H
+
+#include <linux/types.h>
+
+enum {
+ XT_SOCKET_TRANSPARENT = 1 << 0,
+ XT_SOCKET_NOWILDCARD = 1 << 1,
+ XT_SOCKET_RESTORESKMARK = 1 << 2,
+};
+
+struct xt_socket_mtinfo1 {
+ __u8 flags;
+};
+#define XT_SOCKET_FLAGS_V1 XT_SOCKET_TRANSPARENT
+
+struct xt_socket_mtinfo2 {
+ __u8 flags;
+};
+#define XT_SOCKET_FLAGS_V2 (XT_SOCKET_TRANSPARENT | XT_SOCKET_NOWILDCARD)
+
+struct xt_socket_mtinfo3 {
+ __u8 flags;
+};
+#define XT_SOCKET_FLAGS_V3 (XT_SOCKET_TRANSPARENT \
+ | XT_SOCKET_NOWILDCARD \
+ | XT_SOCKET_RESTORESKMARK)
+
+#endif /* _XT_SOCKET_H */