[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/include/net/netns/nftables.h b/src/kernel/linux/v4.19/include/net/netns/nftables.h
new file mode 100644
index 0000000..286fd96
--- /dev/null
+++ b/src/kernel/linux/v4.19/include/net/netns/nftables.h
@@ -0,0 +1,16 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef _NETNS_NFTABLES_H_
+#define _NETNS_NFTABLES_H_
+
+#include <linux/list.h>
+
+struct netns_nftables {
+	struct list_head	tables;
+	struct list_head	commit_list;
+	struct mutex		commit_mutex;
+	unsigned int		base_seq;
+	u8			gencursor;
+	u8			validate_state;
+};
+
+#endif