From 1d0dc06930a917eaca4156193c6c49f798b95ce7 Mon Sep 17 00:00:00 2001
From: Björn Töpel <bjorn.topel@intel.com>
Date: Thu, 24 Jan 2019 19:59:37 +0100
Subject: net: xsk: track AF_XDP sockets on a per-netns list
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Track each AF_XDP socket in a per-netns list. This will be used later
by the sock_diag interface for querying sockets from userspace.

Signed-off-by: Björn Töpel <bjorn.topel@intel.com>
Signed-off-by: Daniel Borkmann <daniel@iogearbox.net>
---
 include/net/net_namespace.h |  4 ++++
 include/net/netns/xdp.h     | 13 +++++++++++++
 2 files changed, 17 insertions(+)
 create mode 100644 include/net/netns/xdp.h

(limited to 'include')

diff --git a/include/net/net_namespace.h b/include/net/net_namespace.h
index 99d4148e0f90..a68ced28d8f4 100644
--- a/include/net/net_namespace.h
+++ b/include/net/net_namespace.h
@@ -31,6 +31,7 @@
 #include <net/netns/xfrm.h>
 #include <net/netns/mpls.h>
 #include <net/netns/can.h>
+#include <net/netns/xdp.h>
 #include <linux/ns_common.h>
 #include <linux/idr.h>
 #include <linux/skbuff.h>
@@ -160,6 +161,9 @@ struct net {
 #endif
 #if IS_ENABLED(CONFIG_CAN)
 	struct netns_can	can;
+#endif
+#ifdef CONFIG_XDP_SOCKETS
+	struct netns_xdp	xdp;
 #endif
 	struct sock		*diag_nlsk;
 	atomic_t		fnhe_genid;
diff --git a/include/net/netns/xdp.h b/include/net/netns/xdp.h
new file mode 100644
index 000000000000..e5734261ba0a
--- /dev/null
+++ b/include/net/netns/xdp.h
@@ -0,0 +1,13 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef __NETNS_XDP_H__
+#define __NETNS_XDP_H__
+
+#include <linux/rculist.h>
+#include <linux/mutex.h>
+
+struct netns_xdp {
+	struct mutex		lock;
+	struct hlist_head	list;
+};
+
+#endif /* __NETNS_XDP_H__ */
-- 
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