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) Support for destination MAC in ipset, from Stefano Brivio.

2) Disallow all-zeroes MAC address in ipset, also from Stefano.

3) Add IPSET_CMD_GET_BYNAME and IPSET_CMD_GET_BYINDEX commands,
   introduce protocol version number 7, from Jozsef Kadlecsik.
   A follow up patch to fix ip_set_byindex() is also included
   in this batch.

4) Honor CTA_MARK_MASK from ctnetlink, from Andreas Jaggi.

5) Statify nf_flow_table_iterate(), from Taehee Yoo.

6) Use nf_flow_table_iterate() to simplify garbage collection in
   nf_flow_table logic, also from Taehee Yoo.

7) Don't use _bh variants of call_rcu(), rcu_barrier() and
   synchronize_rcu_bh() in Netfilter, from Paul E. McKenney.

8) Remove NFC_* cache definition from the old caching
   infrastructure.

9) Remove layer 4 port rover in NAT helpers, use random port
   instead, from Florian Westphal.

10) Use strscpy() in ipset, from Qian Cai.

11) Remove NF_NAT_RANGE_PROTO_RANDOM_FULLY branch now that
    random port is allocated by default, from Xiaozhou Liu.

12) Ignore NF_NAT_RANGE_PROTO_RANDOM too, from Florian Westphal.

13) Limit port allocation selection routine in NAT to avoid
    softlockup splats when most ports are in use, from Florian.

14) Remove unused parameters in nf_ct_l4proto_unregister_sysctl()
    from Yafang Shao.

15) Direct call to nf_nat_l4proto_unique_tuple() instead of
    indirection, from Florian Westphal.

16) Several patches to remove all layer 4 NAT indirections,
    remove nf_nat_l4proto struct, from Florian Westphal.

17) Fix RTP/RTCP source port translation when SNAT is in place,
    from Alin Nastac.

18) Selective rule dump per chain, from Phil Sutter.

19) Revisit CLUSTERIP target, this includes a deadlock fix from
    netns path, sleep in atomic, remove bogus WARN_ON_ONCE()
    and disallow mismatching IP address and MAC address.
    Patchset from Taehee Yoo.

20) Update UDP timeout to stream after 2 seconds, from Florian.

21) Shrink UDP established timeout to 120 seconds like TCP timewait.

22) Sysctl knobs to set GRE timeouts, from Yafang Shao.

23) Move seq_print_acct() to conntrack core file, from Florian.

24) Add enum for conntrack sysctl knobs, also from Florian.

25) Place nf_conntrack_acct, nf_conntrack_helper, nf_conntrack_events
    and nf_conntrack_timestamp knobs in the core, from Florian Westphal.
    As a side effect, shrink netns_ct structure by removing obsolete
    sysctl anchors, also from Florian.
====================

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

5 files changed, 12 insertions, 78 deletions

diff --git a/include/uapi/linux/netfilter.h b/include/uapi/linux/netfilter.h
index cca10e767cd8..ca9e63d6e0e4 100644
--- a/include/uapi/linux/netfilter.h
+++ b/include/uapi/linux/netfilter.h
@@ -34,10 +34,6 @@
 
 /* only for userspace compatibility */
 #ifndef __KERNEL__
-/* Generic cache responses from hook functions.
-   <= 0x2000 is used for protocol-flags. */
-#define NFC_UNKNOWN 0x4000
-#define NFC_ALTERED 0x8000
 
 /* NF_VERDICT_BITS should be 8 now, but userspace might break if this changes */
 #define NF_VERDICT_BITS 16
diff --git a/include/uapi/linux/netfilter/ipset/ip_set.h b/include/uapi/linux/netfilter/ipset/ip_set.h
index 60236f694143..ea69ca21ff23 100644
--- a/include/uapi/linux/netfilter/ipset/ip_set.h
+++ b/include/uapi/linux/netfilter/ipset/ip_set.h
@@ -13,8 +13,9 @@
 
 #include <linux/types.h>
 
-/* The protocol version */
-#define IPSET_PROTOCOL		6
+/* The protocol versions */
+#define IPSET_PROTOCOL		7
+#define IPSET_PROTOCOL_MIN	6
 
 /* The max length of strings including NUL: set and type identifiers */
 #define IPSET_MAXNAMELEN	32
@@ -38,17 +39,19 @@ enum ipset_cmd {
 	IPSET_CMD_TEST,		/* 11: Test an element in a set */
 	IPSET_CMD_HEADER,	/* 12: Get set header data only */
 	IPSET_CMD_TYPE,		/* 13: Get set type */
+	IPSET_CMD_GET_BYNAME,	/* 14: Get set index by name */
+	IPSET_CMD_GET_BYINDEX,	/* 15: Get set name by index */
 	IPSET_MSG_MAX,		/* Netlink message commands */
 
 	/* Commands in userspace: */
-	IPSET_CMD_RESTORE = IPSET_MSG_MAX, /* 14: Enter restore mode */
-	IPSET_CMD_HELP,		/* 15: Get help */
-	IPSET_CMD_VERSION,	/* 16: Get program version */
-	IPSET_CMD_QUIT,		/* 17: Quit from interactive mode */
+	IPSET_CMD_RESTORE = IPSET_MSG_MAX, /* 16: Enter restore mode */
+	IPSET_CMD_HELP,		/* 17: Get help */
+	IPSET_CMD_VERSION,	/* 18: Get program version */
+	IPSET_CMD_QUIT,		/* 19: Quit from interactive mode */
 
 	IPSET_CMD_MAX,
 
-	IPSET_CMD_COMMIT = IPSET_CMD_MAX, /* 18: Commit buffered commands */
+	IPSET_CMD_COMMIT = IPSET_CMD_MAX, /* 20: Commit buffered commands */
 };
 
 /* Attributes at command level */
@@ -66,6 +69,7 @@ enum {
 	IPSET_ATTR_LINENO,	/* 9: Restore lineno */
 	IPSET_ATTR_PROTOCOL_MIN, /* 10: Minimal supported version number */
 	IPSET_ATTR_REVISION_MIN	= IPSET_ATTR_PROTOCOL_MIN, /* type rev min */
+	IPSET_ATTR_INDEX,	/* 11: Kernel index of set */
 	__IPSET_ATTR_CMD_MAX,
 };
 #define IPSET_ATTR_CMD_MAX	(__IPSET_ATTR_CMD_MAX - 1)
@@ -223,6 +227,7 @@ enum ipset_adt {
 
 /* Sets are identified by an index in kernel space. Tweak with ip_set_id_t
  * and IPSET_INVALID_ID if you want to increase the max number of sets.
+ * Also, IPSET_ATTR_INDEX must be changed.
  */
 typedef __u16 ip_set_id_t;
 
diff --git a/include/uapi/linux/netfilter_decnet.h b/include/uapi/linux/netfilter_decnet.h
index 61f1c7dfd033..3c77f54560f2 100644
--- a/include/uapi/linux/netfilter_decnet.h
+++ b/include/uapi/linux/netfilter_decnet.h
@@ -15,16 +15,6 @@
 
 #include <limits.h> /* for INT_MIN, INT_MAX */
 
-/* IP Cache bits. */
-/* Src IP address. */
-#define NFC_DN_SRC		0x0001
-/* Dest IP address. */
-#define NFC_DN_DST		0x0002
-/* Input device. */
-#define NFC_DN_IF_IN		0x0004
-/* Output device. */
-#define NFC_DN_IF_OUT		0x0008
-
 /* kernel define is in netfilter_defs.h */
 #define NF_DN_NUMHOOKS		7
 #endif /* ! __KERNEL__ */
diff --git a/include/uapi/linux/netfilter_ipv4.h b/include/uapi/linux/netfilter_ipv4.h
index c3b060775e13..155e77d6a42d 100644
--- a/include/uapi/linux/netfilter_ipv4.h
+++ b/include/uapi/linux/netfilter_ipv4.h
@@ -13,34 +13,6 @@
 
 #include <limits.h> /* for INT_MIN, INT_MAX */
 
-/* IP Cache bits. */
-/* Src IP address. */
-#define NFC_IP_SRC		0x0001
-/* Dest IP address. */
-#define NFC_IP_DST		0x0002
-/* Input device. */
-#define NFC_IP_IF_IN		0x0004
-/* Output device. */
-#define NFC_IP_IF_OUT		0x0008
-/* TOS. */
-#define NFC_IP_TOS		0x0010
-/* Protocol. */
-#define NFC_IP_PROTO		0x0020
-/* IP options. */
-#define NFC_IP_OPTIONS		0x0040
-/* Frag & flags. */
-#define NFC_IP_FRAG		0x0080
-
-/* Per-protocol information: only matters if proto match. */
-/* TCP flags. */
-#define NFC_IP_TCPFLAGS		0x0100
-/* Source port. */
-#define NFC_IP_SRC_PT		0x0200
-/* Dest port. */
-#define NFC_IP_DST_PT		0x0400
-/* Something else about the proto */
-#define NFC_IP_PROTO_UNKNOWN	0x2000
-
 /* IP Hooks */
 /* After promisc drops, checksum checks. */
 #define NF_IP_PRE_ROUTING	0
diff --git a/include/uapi/linux/netfilter_ipv6.h b/include/uapi/linux/netfilter_ipv6.h
index dc624fd24d25..80aa9b0799af 100644
--- a/include/uapi/linux/netfilter_ipv6.h
+++ b/include/uapi/linux/netfilter_ipv6.h
@@ -16,35 +16,6 @@
 
 #include <limits.h> /* for INT_MIN, INT_MAX */
 
-/* IP Cache bits. */
-/* Src IP address. */
-#define NFC_IP6_SRC              0x0001
-/* Dest IP address. */
-#define NFC_IP6_DST              0x0002
-/* Input device. */
-#define NFC_IP6_IF_IN            0x0004
-/* Output device. */
-#define NFC_IP6_IF_OUT           0x0008
-/* TOS. */
-#define NFC_IP6_TOS              0x0010
-/* Protocol. */
-#define NFC_IP6_PROTO            0x0020
-/* IP options. */
-#define NFC_IP6_OPTIONS          0x0040
-/* Frag & flags. */
-#define NFC_IP6_FRAG             0x0080
-
-
-/* Per-protocol information: only matters if proto match. */
-/* TCP flags. */
-#define NFC_IP6_TCPFLAGS         0x0100
-/* Source port. */
-#define NFC_IP6_SRC_PT           0x0200
-/* Dest port. */
-#define NFC_IP6_DST_PT           0x0400
-/* Something else about the proto */
-#define NFC_IP6_PROTO_UNKNOWN    0x2000
-
 /* IP6 Hooks */
 /* After promisc drops, checksum checks. */
 #define NF_IP6_PRE_ROUTING	0