Merge git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

Pablo Neira Ayuso says:

====================
Netfilter updates for net-next

The following patchset contains Netfilter updates for net-next:

1) Add nft_reg_store64() and nft_reg_load64() helpers, from Ander Juaristi.

2) Time matching support, also from Ander Juaristi.

3) VLAN support for nfnetlink_log, from Michael Braun.

4) Support for set element deletions from the packet path, also from Ander.

5) Remove __read_mostly from conntrack spinlock, from Li RongQing.

6) Support for updating stateful objects, this also includes the initial
   client for this infrastructure: the quota extension. A follow up fix
   for the control plane also comes in this batch. Patches from
   Fernando Fernandez Mancera.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 36 insertions, 8 deletions

diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index e73d16f8b870..3d9e66aa0139 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -2,6 +2,7 @@
 #ifndef _NET_NF_TABLES_H
 #define _NET_NF_TABLES_H
 
+#include <asm/unaligned.h>
 #include <linux/list.h>
 #include <linux/netfilter.h>
 #include <linux/netfilter/nfnetlink.h>
@@ -102,23 +103,28 @@ struct nft_regs {
 	};
 };
 
-/* Store/load an u16 or u8 integer to/from the u32 data register.
+/* Store/load an u8, u16 or u64 integer to/from the u32 data register.
  *
  * Note, when using concatenations, register allocation happens at 32-bit
  * level. So for store instruction, pad the rest part with zero to avoid
  * garbage values.
  */
 
-static inline void nft_reg_store16(u32 *dreg, u16 val)
+static inline void nft_reg_store8(u32 *dreg, u8 val)
 {
 	*dreg = 0;
-	*(u16 *)dreg = val;
+	*(u8 *)dreg = val;
 }
 
-static inline void nft_reg_store8(u32 *dreg, u8 val)
+static inline u8 nft_reg_load8(u32 *sreg)
+{
+	return *(u8 *)sreg;
+}
+
+static inline void nft_reg_store16(u32 *dreg, u16 val)
 {
 	*dreg = 0;
-	*(u8 *)dreg = val;
+	*(u16 *)dreg = val;
 }
 
 static inline u16 nft_reg_load16(u32 *sreg)
@@ -126,9 +132,14 @@ static inline u16 nft_reg_load16(u32 *sreg)
 	return *(u16 *)sreg;
 }
 
-static inline u8 nft_reg_load8(u32 *sreg)
+static inline void nft_reg_store64(u32 *dreg, u64 val)
 {
-	return *(u8 *)sreg;
+	put_unaligned(val, (u64 *)dreg);
+}
+
+static inline u64 nft_reg_load64(u32 *sreg)
+{
+	return get_unaligned((u64 *)sreg);
 }
 
 static inline void nft_data_copy(u32 *dst, const struct nft_data *src,
@@ -291,17 +302,23 @@ struct nft_expr;
  *	struct nft_set_ops - nf_tables set operations
  *
  *	@lookup: look up an element within the set
+ *	@update: update an element if exists, add it if doesn't exist
+ *	@delete: delete an element
  *	@insert: insert new element into set
  *	@activate: activate new element in the next generation
  *	@deactivate: lookup for element and deactivate it in the next generation
  *	@flush: deactivate element in the next generation
  *	@remove: remove element from set
- *	@walk: iterate over all set elemeennts
+ *	@walk: iterate over all set elements
  *	@get: get set elements
  *	@privsize: function to return size of set private data
  *	@init: initialize private data of new set instance
  *	@destroy: destroy private data of set instance
  *	@elemsize: element private size
+ *
+ *	Operations lookup, update and delete have simpler interfaces, are faster
+ *	and currently only used in the packet path. All the rest are slower,
+ *	control plane functions.
  */
 struct nft_set_ops {
 	bool				(*lookup)(const struct net *net,
@@ -316,6 +333,8 @@ struct nft_set_ops {
 						  const struct nft_expr *expr,
 						  struct nft_regs *regs,
 						  const struct nft_set_ext **ext);
+	bool				(*delete)(const struct nft_set *set,
+						  const u32 *key);
 
 	int				(*insert)(const struct net *net,
 						  const struct nft_set *set,
@@ -1108,6 +1127,7 @@ struct nft_object_type {
  *	@init: initialize object from netlink attributes
  *	@destroy: release existing stateful object
  *	@dump: netlink dump stateful object
+ *	@update: update stateful object
  */
 struct nft_object_ops {
 	void				(*eval)(struct nft_object *obj,
@@ -1122,6 +1142,8 @@ struct nft_object_ops {
 	int				(*dump)(struct sk_buff *skb,
 						struct nft_object *obj,
 						bool reset);
+	void				(*update)(struct nft_object *obj,
+						  struct nft_object *newobj);
 	const struct nft_object_type	*type;
 };
 
@@ -1410,10 +1432,16 @@ struct nft_trans_elem {
 
 struct nft_trans_obj {
 	struct nft_object		*obj;
+	struct nft_object		*newobj;
+	bool				update;
 };
 
 #define nft_trans_obj(trans)	\
 	(((struct nft_trans_obj *)trans->data)->obj)
+#define nft_trans_obj_newobj(trans) \
+	(((struct nft_trans_obj *)trans->data)->newobj)
+#define nft_trans_obj_update(trans)	\
+	(((struct nft_trans_obj *)trans->data)->update)
 
 struct nft_trans_flowtable {
 	struct nft_flowtable		*flowtable;