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authorMario Kicherer <dev@kicherer.org>2017-02-21 14:19:47 +0300
committerMarc Kleine-Budde <mkl@pengutronix.de>2017-04-04 18:35:58 +0300
commit8e8cda6d737d356054c9eeef642aec0e8ae7e6bc (patch)
treebdc78138b5beca98f398c86ad65c526bbea2ebf8 /include/net/netns/can.h
parentdabf54dd1c6369160f8d4c793a8613dfb4e7848a (diff)
downloadlinux-8e8cda6d737d356054c9eeef642aec0e8ae7e6bc.tar.xz
can: initial support for network namespaces
This patch adds initial support for network namespaces. The changes only enable support in the CAN raw, proc and af_can code. GW and BCM still have their checks that ensure that they are used only from the main namespace. The patch boils down to moving the global structures, i.e. the global filter list and their /proc stats, into a per-namespace structure and passing around the corresponding "struct net" in a lot of different places. Changes since v1: - rebased on current HEAD (2bfe01e) - fixed overlong line Signed-off-by: Mario Kicherer <dev@kicherer.org> Signed-off-by: Marc Kleine-Budde <mkl@pengutronix.de>
Diffstat (limited to 'include/net/netns/can.h')
-rw-r--r--include/net/netns/can.h31
1 files changed, 31 insertions, 0 deletions
diff --git a/include/net/netns/can.h b/include/net/netns/can.h
new file mode 100644
index 000000000000..e8beba772f1a
--- /dev/null
+++ b/include/net/netns/can.h
@@ -0,0 +1,31 @@
+/*
+ * can in net namespaces
+ */
+
+#ifndef __NETNS_CAN_H__
+#define __NETNS_CAN_H__
+
+#include <linux/spinlock.h>
+
+struct dev_rcv_lists;
+
+struct netns_can {
+#if IS_ENABLED(CONFIG_PROC_FS)
+ struct proc_dir_entry *proc_dir;
+ struct proc_dir_entry *pde_version;
+ struct proc_dir_entry *pde_stats;
+ struct proc_dir_entry *pde_reset_stats;
+ struct proc_dir_entry *pde_rcvlist_all;
+ struct proc_dir_entry *pde_rcvlist_fil;
+ struct proc_dir_entry *pde_rcvlist_inv;
+ struct proc_dir_entry *pde_rcvlist_sff;
+ struct proc_dir_entry *pde_rcvlist_eff;
+ struct proc_dir_entry *pde_rcvlist_err;
+#endif
+
+ /* receive filters subscribed for 'all' CAN devices */
+ struct dev_rcv_lists *can_rx_alldev_list;
+ spinlock_t can_rcvlists_lock;
+};
+
+#endif /* __NETNS_CAN_H__ */