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 vlan match and pop actions to the flowtable offload,
   patches from wenxu.

2) Reduce size of the netns_ct structure, which itself is
   embedded in struct net Make netns_ct a read-mostly structure.
   Patches from Florian Westphal.

3) Add FLOW_OFFLOAD_XMIT_UNSPEC to skip dst check from garbage
   collector path, as required by the tc CT action. From Roi Dayan.

4) VLAN offload fixes for nftables: Allow for matching on both s-vlan
   and c-vlan selectors. Fix match of VLAN id due to incorrect
   byteorder. Add a new routine to properly populate flow dissector
   ethertypes.

5) Missing keys in ip{6}_route_me_harder() results in incorrect
   routes. This includes an update for selftest infra. Patches
   from Ido Schimmel.

6) Add counter hardware offload support through FLOW_CLS_STATS.
====================

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

5 files changed, 36 insertions, 15 deletions

diff --git a/include/net/netfilter/nf_conntrack.h b/include/net/netfilter/nf_conntrack.h
index 86d86c860ede..06dc6db70d18 100644
--- a/include/net/netfilter/nf_conntrack.h
+++ b/include/net/netfilter/nf_conntrack.h
@@ -44,6 +44,13 @@ union nf_conntrack_expect_proto {
 };
 
 struct nf_conntrack_net {
+	/* only used when new connection is allocated: */
+	atomic_t count;
+	unsigned int expect_count;
+	u8 sysctl_auto_assign_helper;
+	bool auto_assign_helper_warned;
+
+	/* only used from work queues, configuration plane, and so on: */
 	unsigned int users4;
 	unsigned int users6;
 	unsigned int users_bridge;
@@ -331,6 +338,7 @@ struct nf_conn *nf_ct_tmpl_alloc(struct net *net,
 void nf_ct_tmpl_free(struct nf_conn *tmpl);
 
 u32 nf_ct_get_id(const struct nf_conn *ct);
+u32 nf_conntrack_count(const struct net *net);
 
 static inline void
 nf_ct_set(struct sk_buff *skb, struct nf_conn *ct, enum ip_conntrack_info info)
diff --git a/include/net/netfilter/nf_flow_table.h b/include/net/netfilter/nf_flow_table.h
index 583b327d8fc0..51d8eb99764d 100644
--- a/include/net/netfilter/nf_flow_table.h
+++ b/include/net/netfilter/nf_flow_table.h
@@ -21,6 +21,8 @@ struct nf_flow_key {
 	struct flow_dissector_key_control		control;
 	struct flow_dissector_key_control		enc_control;
 	struct flow_dissector_key_basic			basic;
+	struct flow_dissector_key_vlan			vlan;
+	struct flow_dissector_key_vlan			cvlan;
 	union {
 		struct flow_dissector_key_ipv4_addrs	ipv4;
 		struct flow_dissector_key_ipv6_addrs	ipv6;
@@ -90,7 +92,8 @@ enum flow_offload_tuple_dir {
 #define FLOW_OFFLOAD_DIR_MAX	IP_CT_DIR_MAX
 
 enum flow_offload_xmit_type {
-	FLOW_OFFLOAD_XMIT_NEIGH		= 0,
+	FLOW_OFFLOAD_XMIT_UNSPEC	= 0,
+	FLOW_OFFLOAD_XMIT_NEIGH,
 	FLOW_OFFLOAD_XMIT_XFRM,
 	FLOW_OFFLOAD_XMIT_DIRECT,
 };
diff --git a/include/net/netfilter/nf_tables.h b/include/net/netfilter/nf_tables.h
index f0f7a3c5da6a..4a75da2a2e1d 100644
--- a/include/net/netfilter/nf_tables.h
+++ b/include/net/netfilter/nf_tables.h
@@ -867,6 +867,8 @@ struct nft_expr_ops {
 	int				(*offload)(struct nft_offload_ctx *ctx,
 						   struct nft_flow_rule *flow,
 						   const struct nft_expr *expr);
+	void				(*offload_stats)(struct nft_expr *expr,
+							 const struct flow_stats *stats);
 	u32				offload_flags;
 	const struct nft_expr_type	*type;
 	void				*data;
diff --git a/include/net/netfilter/nf_tables_offload.h b/include/net/netfilter/nf_tables_offload.h
index 1d34fe154fe0..f9d95ff82df8 100644
--- a/include/net/netfilter/nf_tables_offload.h
+++ b/include/net/netfilter/nf_tables_offload.h
@@ -4,11 +4,16 @@
 #include <net/flow_offload.h>
 #include <net/netfilter/nf_tables.h>
 
+enum nft_offload_reg_flags {
+	NFT_OFFLOAD_F_NETWORK2HOST	= (1 << 0),
+};
+
 struct nft_offload_reg {
 	u32		key;
 	u32		len;
 	u32		base_offset;
 	u32		offset;
+	u32		flags;
 	struct nft_data data;
 	struct nft_data	mask;
 };
@@ -45,6 +50,7 @@ struct nft_flow_key {
 	struct flow_dissector_key_ports			tp;
 	struct flow_dissector_key_ip			ip;
 	struct flow_dissector_key_vlan			vlan;
+	struct flow_dissector_key_vlan			cvlan;
 	struct flow_dissector_key_eth_addrs		eth_addrs;
 	struct flow_dissector_key_meta			meta;
 } __aligned(BITS_PER_LONG / 8); /* Ensure that we can do comparisons as longs. */
@@ -68,16 +74,21 @@ void nft_flow_rule_set_addr_type(struct nft_flow_rule *flow,
 
 struct nft_rule;
 struct nft_flow_rule *nft_flow_rule_create(struct net *net, const struct nft_rule *rule);
+int nft_flow_rule_stats(const struct nft_chain *chain, const struct nft_rule *rule);
 void nft_flow_rule_destroy(struct nft_flow_rule *flow);
 int nft_flow_rule_offload_commit(struct net *net);
 
-#define NFT_OFFLOAD_MATCH(__key, __base, __field, __len, __reg)		\
+#define NFT_OFFLOAD_MATCH_FLAGS(__key, __base, __field, __len, __reg, __flags)	\
 	(__reg)->base_offset	=					\
 		offsetof(struct nft_flow_key, __base);			\
 	(__reg)->offset		=					\
 		offsetof(struct nft_flow_key, __base.__field);		\
 	(__reg)->len		= __len;				\
 	(__reg)->key		= __key;				\
+	(__reg)->flags		= __flags;
+
+#define NFT_OFFLOAD_MATCH(__key, __base, __field, __len, __reg)		\
+	NFT_OFFLOAD_MATCH_FLAGS(__key, __base, __field, __len, __reg, 0)
 
 #define NFT_OFFLOAD_MATCH_EXACT(__key, __base, __field, __len, __reg)	\
 	NFT_OFFLOAD_MATCH(__key, __base, __field, __len, __reg)		\
diff --git a/include/net/netns/conntrack.h b/include/net/netns/conntrack.h
index e5f664d69ead..ad0a95c2335e 100644
--- a/include/net/netns/conntrack.h
+++ b/include/net/netns/conntrack.h
@@ -24,9 +24,9 @@ struct nf_generic_net {
 
 struct nf_tcp_net {
 	unsigned int timeouts[TCP_CONNTRACK_TIMEOUT_MAX];
-	int tcp_loose;
-	int tcp_be_liberal;
-	int tcp_max_retrans;
+	u8 tcp_loose;
+	u8 tcp_be_liberal;
+	u8 tcp_max_retrans;
 };
 
 enum udp_conntrack {
@@ -45,7 +45,7 @@ struct nf_icmp_net {
 
 #ifdef CONFIG_NF_CT_PROTO_DCCP
 struct nf_dccp_net {
-	int dccp_loose;
+	u8 dccp_loose;
 	unsigned int dccp_timeout[CT_DCCP_MAX + 1];
 };
 #endif
@@ -93,18 +93,15 @@ struct ct_pcpu {
 };
 
 struct netns_ct {
-	atomic_t		count;
-	unsigned int		expect_count;
 #ifdef CONFIG_NF_CONNTRACK_EVENTS
 	bool ecache_dwork_pending;
 #endif
-	bool			auto_assign_helper_warned;
-	unsigned int		sysctl_log_invalid; /* Log invalid packets */
-	int			sysctl_events;
-	int			sysctl_acct;
-	int			sysctl_auto_assign_helper;
-	int			sysctl_tstamp;
-	int			sysctl_checksum;
+	u8			sysctl_log_invalid; /* Log invalid packets */
+	u8			sysctl_events;
+	u8			sysctl_acct;
+	u8			sysctl_auto_assign_helper;
+	u8			sysctl_tstamp;
+	u8			sysctl_checksum;
 
 	struct ct_pcpu __percpu *pcpu_lists;
 	struct ip_conntrack_stat __percpu *stat;