[Feature] add GA346 baseline version

Change-Id: Ic62933698569507dcf98240cdf5d9931ae34348f
diff --git a/src/kernel/linux/v4.19/include/net/netns/dccp.h b/src/kernel/linux/v4.19/include/net/netns/dccp.h
new file mode 100644
index 0000000..cdbc4f5
--- /dev/null
+++ b/src/kernel/linux/v4.19/include/net/netns/dccp.h
@@ -0,0 +1,12 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NETNS_DCCP_H__
+#define __NETNS_DCCP_H__
+
+struct sock;
+
+struct netns_dccp {
+	struct sock *v4_ctl_sk;
+	struct sock *v6_ctl_sk;
+};
+
+#endif