Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-next

Pablo Neira Ayuso says:

====================
The following patchset contains relevant updates for the Netfilter
tree, they are:

* Enhancements for ipset: Add the counter extension for sets, this
  information can be used from the iptables set match, to change
  the matching behaviour. Jozsef required to add the extension
  infrastructure and moved the existing timeout support upon it.
  This also includes a change in net/sched/em_ipset to adapt it to
  the new extension structure.

* Enhancements for performance boosting in nfnetlink_queue: Add new
  configuration flags that allows user-space to receive big packets (GRO)
  and to disable checksumming calculation. This were proposed by Eric
  Dumazet during the Netfilter Workshop 2013 in Copenhagen. Florian
  Westphal was kind enough to find the time to materialize the proposal.

* A sparse fix from Simon, he noticed it in the SCTP NAT helper, the fix
  required a change in the interface of sctp_end_cksum.
====================
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/netfilter/ipset/ip_set.h

 /* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
  *                         Patrick Schaaf <bof@bof.de>
  *                         Martin Josefsson <gandalf@wlug.westbo.se>
- * Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ * Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -47,10 +47,36 @@ enum ip_set_feature {
 	IPSET_DUMP_LAST = (1 << IPSET_DUMP_LAST_FLAG),
 };
 
+/* Set extensions */
+enum ip_set_extension {
+	IPSET_EXT_NONE = 0,
+	IPSET_EXT_BIT_TIMEOUT = 1,
+	IPSET_EXT_TIMEOUT = (1 << IPSET_EXT_BIT_TIMEOUT),
+	IPSET_EXT_BIT_COUNTER = 2,
+	IPSET_EXT_COUNTER = (1 << IPSET_EXT_BIT_COUNTER),
+};
+
+/* Extension offsets */
+enum ip_set_offset {
+	IPSET_OFFSET_TIMEOUT = 0,
+	IPSET_OFFSET_COUNTER,
+	IPSET_OFFSET_MAX,
+};
+
+#define SET_WITH_TIMEOUT(s)	((s)->extensions & IPSET_EXT_TIMEOUT)
+#define SET_WITH_COUNTER(s)	((s)->extensions & IPSET_EXT_COUNTER)
+
+struct ip_set_ext {
+	unsigned long timeout;
+	u64 packets;
+	u64 bytes;
+};
+
 struct ip_set;
 
 typedef int (*ipset_adtfn)(struct ip_set *set, void *value,
-			   u32 timeout, u32 flags);
+			   const struct ip_set_ext *ext,
+			   struct ip_set_ext *mext, u32 cmdflags);
 
 /* Kernel API function options */
 struct ip_set_adt_opt {
@@ -58,7 +84,7 @@ struct ip_set_adt_opt {
 	u8 dim;			/* Dimension of match/target */
 	u8 flags;		/* Direction and negation flags */
 	u32 cmdflags;		/* Command-like flags */
-	u32 timeout;		/* Timeout value */
+	struct ip_set_ext ext;	/* Extensions */
 };
 
 /* Set type, variant-specific part */
@@ -69,7 +95,7 @@ struct ip_set_type_variant {
 	 *			positive for matching element */
 	int (*kadt)(struct ip_set *set, const struct sk_buff *skb,
 		    const struct xt_action_param *par,
-		    enum ipset_adt adt, const struct ip_set_adt_opt *opt);
+		    enum ipset_adt adt, struct ip_set_adt_opt *opt);
 
 	/* Userspace: test/add/del entries
 	 *		returns negative error code,
@@ -151,10 +177,76 @@ struct ip_set {
 	u8 family;
 	/* The type revision */
 	u8 revision;
+	/* Extensions */
+	u8 extensions;
 	/* The type specific data */
 	void *data;
 };
 
+struct ip_set_counter {
+	atomic64_t bytes;
+	atomic64_t packets;
+};
+
+static inline void
+ip_set_add_bytes(u64 bytes, struct ip_set_counter *counter)
+{
+	atomic64_add((long long)bytes, &(counter)->bytes);
+}
+
+static inline void
+ip_set_add_packets(u64 packets, struct ip_set_counter *counter)
+{
+	atomic64_add((long long)packets, &(counter)->packets);
+}
+
+static inline u64
+ip_set_get_bytes(const struct ip_set_counter *counter)
+{
+	return (u64)atomic64_read(&(counter)->bytes);
+}
+
+static inline u64
+ip_set_get_packets(const struct ip_set_counter *counter)
+{
+	return (u64)atomic64_read(&(counter)->packets);
+}
+
+static inline void
+ip_set_update_counter(struct ip_set_counter *counter,
+		      const struct ip_set_ext *ext,
+		      struct ip_set_ext *mext, u32 flags)
+{
+	if (ext->packets != ULLONG_MAX &&
+	    !(flags & IPSET_FLAG_SKIP_COUNTER_UPDATE)) {
+		ip_set_add_bytes(ext->bytes, counter);
+		ip_set_add_packets(ext->packets, counter);
+	}
+	if (flags & IPSET_FLAG_MATCH_COUNTERS) {
+		mext->packets = ip_set_get_packets(counter);
+		mext->bytes = ip_set_get_bytes(counter);
+	}
+}
+
+static inline bool
+ip_set_put_counter(struct sk_buff *skb, struct ip_set_counter *counter)
+{
+	return nla_put_net64(skb, IPSET_ATTR_BYTES,
+			     cpu_to_be64(ip_set_get_bytes(counter))) ||
+	       nla_put_net64(skb, IPSET_ATTR_PACKETS,
+			     cpu_to_be64(ip_set_get_packets(counter)));
+}
+
+static inline void
+ip_set_init_counter(struct ip_set_counter *counter,
+		    const struct ip_set_ext *ext)
+{
+	if (ext->bytes != ULLONG_MAX)
+		atomic64_set(&(counter)->bytes, (long long)(ext->bytes));
+	if (ext->packets != ULLONG_MAX)
+		atomic64_set(&(counter)->packets, (long long)(ext->packets));
+}
+
 /* register and unregister set references */
 extern ip_set_id_t ip_set_get_byname(const char *name, struct ip_set **set);
 extern void ip_set_put_byindex(ip_set_id_t index);
@@ -167,19 +259,21 @@ extern void ip_set_nfnl_put(ip_set_id_t index);
 
 extern int ip_set_add(ip_set_id_t id, const struct sk_buff *skb,
 		      const struct xt_action_param *par,
-		      const struct ip_set_adt_opt *opt);
+		      struct ip_set_adt_opt *opt);
 extern int ip_set_del(ip_set_id_t id, const struct sk_buff *skb,
 		      const struct xt_action_param *par,
-		      const struct ip_set_adt_opt *opt);
+		      struct ip_set_adt_opt *opt);
 extern int ip_set_test(ip_set_id_t id, const struct sk_buff *skb,
 		       const struct xt_action_param *par,
-		       const struct ip_set_adt_opt *opt);
+		       struct ip_set_adt_opt *opt);
 
 /* Utility functions */
 extern void *ip_set_alloc(size_t size);
 extern void ip_set_free(void *members);
 extern int ip_set_get_ipaddr4(struct nlattr *nla,  __be32 *ipaddr);
 extern int ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr);
+extern int ip_set_get_extensions(struct ip_set *set, struct nlattr *tb[],
+				 struct ip_set_ext *ext);
 
 static inline int
 ip_set_get_hostipaddr4(struct nlattr *nla, u32 *ipaddr)
@@ -200,6 +294,14 @@ ip_set_eexist(int ret, u32 flags)
 	return ret == -IPSET_ERR_EXIST && (flags & IPSET_FLAG_EXIST);
 }
 
+/* Match elements marked with nomatch */
+static inline bool
+ip_set_enomatch(int ret, u32 flags, enum ipset_adt adt)
+{
+	return adt == IPSET_TEST &&
+	       ret == -ENOTEMPTY && ((flags >> 16) & IPSET_FLAG_NOMATCH);
+}
+
 /* Check the NLA_F_NET_BYTEORDER flag */
 static inline bool
 ip_set_attr_netorder(struct nlattr *tb[], int type)
@@ -284,4 +386,14 @@ bitmap_bytes(u32 a, u32 b)
 	return 4 * ((((b - a + 8) / 8) + 3) / 4);
 }
 
+#include <linux/netfilter/ipset/ip_set_timeout.h>
+
+#define IP_SET_INIT_KEXT(skb, opt, map)			\
+	{ .bytes = (skb)->len, .packets = 1,		\
+	  .timeout = ip_set_adt_opt_timeout(opt, map) }
+
+#define IP_SET_INIT_UEXT(map)				\
+	{ .bytes = ULLONG_MAX, .packets = ULLONG_MAX,	\
+	  .timeout = (map)->timeout }
+
 #endif /*_IP_SET_H */

include/linux/netfilter/ipset/ip_set_bitmap.h

@@ -5,6 +5,12 @@
 
 #define IPSET_BITMAP_MAX_RANGE	0x0000FFFF
 
+enum {
+	IPSET_ADD_FAILED = 1,
+	IPSET_ADD_STORE_PLAIN_TIMEOUT,
+	IPSET_ADD_START_STORED_TIMEOUT,
+};
+
 /* Common functions */
 
 static inline u32

include/linux/netfilter/ipset/ip_set_timeout.h

 #ifndef _IP_SET_TIMEOUT_H
 #define _IP_SET_TIMEOUT_H
 
-/* Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+/* Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -17,13 +17,14 @@
 #define IPSET_GC_PERIOD(timeout) \
 	((timeout/3) ? min_t(u32, (timeout)/3, IPSET_GC_TIME) : 1)
 
-/* Set is defined without timeout support: timeout value may be 0 */
-#define IPSET_NO_TIMEOUT	UINT_MAX
+/* Entry is set with no timeout value */
+#define IPSET_ELEM_PERMANENT	0
 
-#define with_timeout(timeout)	((timeout) != IPSET_NO_TIMEOUT)
+/* Set is defined with timeout support: timeout value may be 0 */
+#define IPSET_NO_TIMEOUT	UINT_MAX
 
-#define opt_timeout(opt, map)	\
-	(with_timeout((opt)->timeout) ? (opt)->timeout : (map)->timeout)
+#define ip_set_adt_opt_timeout(opt, map)	\
+((opt)->ext.timeout != IPSET_NO_TIMEOUT ? (opt)->ext.timeout : (map)->timeout)
 
 static inline unsigned int
 ip_set_timeout_uget(struct nlattr *tb)
@@ -38,61 +39,6 @@ ip_set_timeout_uget(struct nlattr *tb)
 	return timeout == IPSET_NO_TIMEOUT ? IPSET_NO_TIMEOUT - 1 : timeout;
 }
 
-#ifdef IP_SET_BITMAP_TIMEOUT
-
-/* Bitmap specific timeout constants and macros for the entries */
-
-/* Bitmap entry is unset */
-#define IPSET_ELEM_UNSET	0
-/* Bitmap entry is set with no timeout value */
-#define IPSET_ELEM_PERMANENT	(UINT_MAX/2)
-
-static inline bool
-ip_set_timeout_test(unsigned long timeout)
-{
-	return timeout != IPSET_ELEM_UNSET &&
-	       (timeout == IPSET_ELEM_PERMANENT ||
-		time_is_after_jiffies(timeout));
-}
-
-static inline bool
-ip_set_timeout_expired(unsigned long timeout)
-{
-	return timeout != IPSET_ELEM_UNSET &&
-	       timeout != IPSET_ELEM_PERMANENT &&
-	       time_is_before_jiffies(timeout);
-}
-
-static inline unsigned long
-ip_set_timeout_set(u32 timeout)
-{
-	unsigned long t;
-
-	if (!timeout)
-		return IPSET_ELEM_PERMANENT;
-
-	t = msecs_to_jiffies(timeout * 1000) + jiffies;
-	if (t == IPSET_ELEM_UNSET || t == IPSET_ELEM_PERMANENT)
-		/* Bingo! */
-		t++;
-
-	return t;
-}
-
-static inline u32
-ip_set_timeout_get(unsigned long timeout)
-{
-	return timeout == IPSET_ELEM_PERMANENT ? 0 :
-		jiffies_to_msecs(timeout - jiffies)/1000;
-}
-
-#else
-
-/* Hash specific timeout constants and macros for the entries */
-
-/* Hash entry is set with no timeout value */
-#define IPSET_ELEM_PERMANENT	0
-
 static inline bool
 ip_set_timeout_test(unsigned long timeout)
 {
@@ -101,36 +47,32 @@ ip_set_timeout_test(unsigned long timeout)
 }
 
 static inline bool
-ip_set_timeout_expired(unsigned long timeout)
+ip_set_timeout_expired(unsigned long *timeout)
 {
-	return timeout != IPSET_ELEM_PERMANENT &&
-	       time_is_before_jiffies(timeout);
+	return *timeout != IPSET_ELEM_PERMANENT &&
+	       time_is_before_jiffies(*timeout);
 }
 
-static inline unsigned long
-ip_set_timeout_set(u32 timeout)
+static inline void
+ip_set_timeout_set(unsigned long *timeout, u32 t)
 {
-	unsigned long t;
-
-	if (!timeout)
-		return IPSET_ELEM_PERMANENT;
+	if (!t) {
+		*timeout = IPSET_ELEM_PERMANENT;
+		return;
+	}
 
-	t = msecs_to_jiffies(timeout * 1000) + jiffies;
-	if (t == IPSET_ELEM_PERMANENT)
+	*timeout = msecs_to_jiffies(t * 1000) + jiffies;
+	if (*timeout == IPSET_ELEM_PERMANENT)
 		/* Bingo! :-) */
-		t++;
-
-	return t;
+		(*timeout)--;
 }
 
 static inline u32
-ip_set_timeout_get(unsigned long timeout)
+ip_set_timeout_get(unsigned long *timeout)
 {
-	return timeout == IPSET_ELEM_PERMANENT ? 0 :
-		jiffies_to_msecs(timeout - jiffies)/1000;
+	return *timeout == IPSET_ELEM_PERMANENT ? 0 :
+		jiffies_to_msecs(*timeout - jiffies)/1000;
 }
-#endif /* ! IP_SET_BITMAP_TIMEOUT */
 
 #endif	/* __KERNEL__ */
-
 #endif /* _IP_SET_TIMEOUT_H */

include/linux/netfilter/ipset/pfxlen.h

@@ -41,4 +41,13 @@ do {						\
 	to = from | ~ip_set_hostmask(cidr);	\
 } while (0)
 
+static inline void
+ip6_netmask(union nf_inet_addr *ip, u8 prefix)
+{
+	ip->ip6[0] &= ip_set_netmask6(prefix)[0];
+	ip->ip6[1] &= ip_set_netmask6(prefix)[1];
+	ip->ip6[2] &= ip_set_netmask6(prefix)[2];
+	ip->ip6[3] &= ip_set_netmask6(prefix)[3];
+}
+
 #endif /*_PFXLEN_H */

include/net/netfilter/nf_queue.h

@@ -9,10 +9,13 @@ struct nf_queue_entry {
 
 	struct nf_hook_ops	*elem;
 	u_int8_t		pf;
+	u16			size; /* sizeof(entry) + saved route keys */
 	unsigned int		hook;
 	struct net_device	*indev;
 	struct net_device	*outdev;
 	int			(*okfn)(struct sk_buff *);
+
+	/* extra space to store route keys */
 };
 
 #define nf_queue_entry_reroute(x) ((void *)x + sizeof(struct nf_queue_entry))
@@ -27,4 +30,7 @@ void nf_register_queue_handler(const struct nf_queue_handler *qh);
 void nf_unregister_queue_handler(void);
 extern void nf_reinject(struct nf_queue_entry *entry, unsigned int verdict);
 
+bool nf_queue_entry_get_refs(struct nf_queue_entry *entry);
+void nf_queue_entry_release_refs(struct nf_queue_entry *entry);
+
 #endif /* _NF_QUEUE_H */

include/net/sctp/checksum.h

@@ -77,7 +77,7 @@ static inline __u32 sctp_update_cksum(__u8 *buffer, __u16 length, __u32 crc32)
 	return sctp_crc32c(crc32, buffer, length);
 }
 
-static inline __le32 sctp_end_cksum(__be32 crc32)
+static inline __le32 sctp_end_cksum(__u32 crc32)
 {
 	return cpu_to_le32(~crc32);
 }

include/uapi/linux/netfilter/ipset/ip_set.h

@@ -108,6 +108,8 @@ enum {
 	IPSET_ATTR_CIDR2,
 	IPSET_ATTR_IP2_TO,
 	IPSET_ATTR_IFACE,
+	IPSET_ATTR_BYTES,
+	IPSET_ATTR_PACKETS,
 	__IPSET_ATTR_ADT_MAX,
 };
 #define IPSET_ATTR_ADT_MAX	(__IPSET_ATTR_ADT_MAX - 1)
@@ -137,12 +139,13 @@ enum ipset_errno {
 	IPSET_ERR_REFERENCED,
 	IPSET_ERR_IPADDR_IPV4,
 	IPSET_ERR_IPADDR_IPV6,
+	IPSET_ERR_COUNTER,
 
 	/* Type specific error codes */
 	IPSET_ERR_TYPE_SPECIFIC = 4352,
 };
 
-/* Flags at command level */
+/* Flags at command level or match/target flags, lower half of cmdattrs*/
 enum ipset_cmd_flags {
 	IPSET_FLAG_BIT_EXIST	= 0,
 	IPSET_FLAG_EXIST	= (1 << IPSET_FLAG_BIT_EXIST),
@@ -150,10 +153,20 @@ enum ipset_cmd_flags {
 	IPSET_FLAG_LIST_SETNAME	= (1 << IPSET_FLAG_BIT_LIST_SETNAME),
 	IPSET_FLAG_BIT_LIST_HEADER = 2,
 	IPSET_FLAG_LIST_HEADER	= (1 << IPSET_FLAG_BIT_LIST_HEADER),
-	IPSET_FLAG_CMD_MAX = 15,	/* Lower half */
+	IPSET_FLAG_BIT_SKIP_COUNTER_UPDATE = 3,
+	IPSET_FLAG_SKIP_COUNTER_UPDATE =
+		(1 << IPSET_FLAG_BIT_SKIP_COUNTER_UPDATE),
+	IPSET_FLAG_BIT_SKIP_SUBCOUNTER_UPDATE = 4,
+	IPSET_FLAG_SKIP_SUBCOUNTER_UPDATE =
+		(1 << IPSET_FLAG_BIT_SKIP_SUBCOUNTER_UPDATE),
+	IPSET_FLAG_BIT_MATCH_COUNTERS = 5,
+	IPSET_FLAG_MATCH_COUNTERS = (1 << IPSET_FLAG_BIT_MATCH_COUNTERS),
+	IPSET_FLAG_BIT_RETURN_NOMATCH = 7,
+	IPSET_FLAG_RETURN_NOMATCH = (1 << IPSET_FLAG_BIT_RETURN_NOMATCH),
+	IPSET_FLAG_CMD_MAX = 15,
 };
 
-/* Flags at CADT attribute level */
+/* Flags at CADT attribute level, upper half of cmdattrs */
 enum ipset_cadt_flags {
 	IPSET_FLAG_BIT_BEFORE	= 0,
 	IPSET_FLAG_BEFORE	= (1 << IPSET_FLAG_BIT_BEFORE),
@@ -161,7 +174,9 @@ enum ipset_cadt_flags {
 	IPSET_FLAG_PHYSDEV	= (1 << IPSET_FLAG_BIT_PHYSDEV),
 	IPSET_FLAG_BIT_NOMATCH	= 2,
 	IPSET_FLAG_NOMATCH	= (1 << IPSET_FLAG_BIT_NOMATCH),
-	IPSET_FLAG_CADT_MAX	= 15,	/* Upper half */
+	IPSET_FLAG_BIT_WITH_COUNTERS = 3,
+	IPSET_FLAG_WITH_COUNTERS = (1 << IPSET_FLAG_BIT_WITH_COUNTERS),
+	IPSET_FLAG_CADT_MAX	= 15,
 };
 
 /* Commands with settype-specific attributes */
@@ -190,6 +205,7 @@ enum ip_set_dim {
 	 * If changed, new revision of iptables match/target is required.
 	 */
 	IPSET_DIM_MAX = 6,
+	/* Backward compatibility: set match revision 2 */
 	IPSET_BIT_RETURN_NOMATCH = 7,
 };
 
@@ -202,6 +218,18 @@ enum ip_set_kopt {
 	IPSET_RETURN_NOMATCH = (1 << IPSET_BIT_RETURN_NOMATCH),
 };
 
+enum {
+	IPSET_COUNTER_NONE = 0,
+	IPSET_COUNTER_EQ,
+	IPSET_COUNTER_NE,
+	IPSET_COUNTER_LT,
+	IPSET_COUNTER_GT,
+};
+
+struct ip_set_counter_match {
+	__u8 op;
+	__u64 value;
+};
 
 /* Interface to iptables/ip6tables */
 

include/uapi/linux/netfilter/nfnetlink_queue.h

@@ -45,6 +45,7 @@ enum nfqnl_attr_type {
 	NFQA_CT,			/* nf_conntrack_netlink.h */
 	NFQA_CT_INFO,			/* enum ip_conntrack_info */
 	NFQA_CAP_LEN,			/* __u32 length of captured packet */
+	NFQA_SKB_INFO,			/* __u32 skb meta information */
 
 	__NFQA_MAX
 };
@@ -96,6 +97,13 @@ enum nfqnl_attr_config {
 /* Flags for NFQA_CFG_FLAGS */
 #define NFQA_CFG_F_FAIL_OPEN			(1 << 0)
 #define NFQA_CFG_F_CONNTRACK			(1 << 1)
-#define NFQA_CFG_F_MAX				(1 << 2)
+#define NFQA_CFG_F_GSO				(1 << 2)
+#define NFQA_CFG_F_MAX				(1 << 3)
+
+/* flags for NFQA_SKB_INFO */
+/* packet appears to have wrong checksums, but they are ok */
+#define NFQA_SKB_CSUMNOTREADY (1 << 0)
+/* packet is GSO (i.e., exceeds device mtu) */
+#define NFQA_SKB_GSO (1 << 1)
 
 #endif /* _NFNETLINK_QUEUE_H */

include/uapi/linux/netfilter/xt_set.h

@@ -62,4 +62,13 @@ struct xt_set_info_target_v2 {
 	__u32 timeout;
 };
 
+/* Revision 3 match */
+
+struct xt_set_info_match_v3 {
+	struct xt_set_info match_set;
+	struct ip_set_counter_match packets;
+	struct ip_set_counter_match bytes;
+	__u32 flags;
+};
+
 #endif /*_XT_SET_H*/

net/netfilter/ipset/ip_set_bitmap_gen.h

+/* Copyright (C) 2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ */
+
+#ifndef __IP_SET_BITMAP_IP_GEN_H
+#define __IP_SET_BITMAP_IP_GEN_H
+
+#define CONCAT(a, b)		a##b
+#define TOKEN(a,b)		CONCAT(a, b)
+
+#define mtype_do_test		TOKEN(MTYPE, _do_test)
+#define mtype_gc_test		TOKEN(MTYPE, _gc_test)
+#define mtype_is_filled		TOKEN(MTYPE, _is_filled)
+#define mtype_do_add		TOKEN(MTYPE, _do_add)
+#define mtype_do_del		TOKEN(MTYPE, _do_del)
+#define mtype_do_list		TOKEN(MTYPE, _do_list)
+#define mtype_do_head		TOKEN(MTYPE, _do_head)
+#define mtype_adt_elem		TOKEN(MTYPE, _adt_elem)
+#define mtype_add_timeout	TOKEN(MTYPE, _add_timeout)
+#define mtype_gc_init		TOKEN(MTYPE, _gc_init)
+#define mtype_kadt		TOKEN(MTYPE, _kadt)
+#define mtype_uadt		TOKEN(MTYPE, _uadt)
+#define mtype_destroy		TOKEN(MTYPE, _destroy)
+#define mtype_flush		TOKEN(MTYPE, _flush)
+#define mtype_head		TOKEN(MTYPE, _head)
+#define mtype_same_set		TOKEN(MTYPE, _same_set)
+#define mtype_elem		TOKEN(MTYPE, _elem)
+#define mtype_test		TOKEN(MTYPE, _test)
+#define mtype_add		TOKEN(MTYPE, _add)
+#define mtype_del		TOKEN(MTYPE, _del)
+#define mtype_list		TOKEN(MTYPE, _list)
+#define mtype_gc		TOKEN(MTYPE, _gc)
+#define mtype			MTYPE
+
+#define ext_timeout(e, m)	\
+	(unsigned long *)((e) + (m)->offset[IPSET_OFFSET_TIMEOUT])
+#define ext_counter(e, m)	\
+	(struct ip_set_counter *)((e) + (m)->offset[IPSET_OFFSET_COUNTER])
+#define get_ext(map, id)	((map)->extensions + (map)->dsize * (id))
+
+static void
+mtype_gc_init(struct ip_set *set, void (*gc)(unsigned long ul_set))
+{
+	struct mtype *map = set->data;
+
+	init_timer(&map->gc);
+	map->gc.data = (unsigned long) set;
+	map->gc.function = gc;
+	map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
+	add_timer(&map->gc);
+}
+
+static void
+mtype_destroy(struct ip_set *set)
+{
+	struct mtype *map = set->data;
+
+	if (SET_WITH_TIMEOUT(set))
+		del_timer_sync(&map->gc);
+
+	ip_set_free(map->members);
+	if (map->dsize)
+		ip_set_free(map->extensions);
+	kfree(map);
+
+	set->data = NULL;
+}
+
+static void
+mtype_flush(struct ip_set *set)
+{
+	struct mtype *map = set->data;
+
+	memset(map->members, 0, map->memsize);
+}
+
+static int
+mtype_head(struct ip_set *set, struct sk_buff *skb)
+{
+	const struct mtype *map = set->data;
+	struct nlattr *nested;
+
+	nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
+	if (!nested)
+		goto nla_put_failure;
+	if (mtype_do_head(skb, map) ||
+	    nla_put_net32(skb, IPSET_ATTR_REFERENCES, htonl(set->ref - 1)) ||
+	    nla_put_net32(skb, IPSET_ATTR_MEMSIZE,
+			  htonl(sizeof(*map) +
+				map->memsize +
+				map->dsize * map->elements)) ||
+	    (SET_WITH_TIMEOUT(set) &&
+	     nla_put_net32(skb, IPSET_ATTR_TIMEOUT, htonl(map->timeout))) ||
+	    (SET_WITH_COUNTER(set) &&
+	     nla_put_net32(skb, IPSET_ATTR_CADT_FLAGS,
+			   htonl(IPSET_FLAG_WITH_COUNTERS))))
+		goto nla_put_failure;
+	ipset_nest_end(skb, nested);
+
+	return 0;
+nla_put_failure:
+	return -EMSGSIZE;
+}
+
+static int
+mtype_test(struct ip_set *set, void *value, const struct ip_set_ext *ext,
+	   struct ip_set_ext *mext, u32 flags)
+{
+	struct mtype *map = set->data;
+	const struct mtype_adt_elem *e = value;
+	void *x = get_ext(map, e->id);
+	int ret = mtype_do_test(e, map);
+
+	if (ret <= 0)
+		return ret;
+	if (SET_WITH_TIMEOUT(set) &&
+	    ip_set_timeout_expired(ext_timeout(x, map)))
+		return 0;
+	if (SET_WITH_COUNTER(set))
+		ip_set_update_counter(ext_counter(x, map), ext, mext, flags);
+	return 1;
+}
+
+static int
+mtype_add(struct ip_set *set, void *value, const struct ip_set_ext *ext,
+	  struct ip_set_ext *mext, u32 flags)
+{
+	struct mtype *map = set->data;
+	const struct mtype_adt_elem *e = value;
+	void *x = get_ext(map, e->id);
+	int ret = mtype_do_add(e, map, flags);
+
+	if (ret == IPSET_ADD_FAILED) {
+		if (SET_WITH_TIMEOUT(set) &&
+		    ip_set_timeout_expired(ext_timeout(x, map)))
+			ret = 0;
+		else if (!(flags & IPSET_FLAG_EXIST))
+			return -IPSET_ERR_EXIST;
+	}
+
+	if (SET_WITH_TIMEOUT(set))
+#ifdef IP_SET_BITMAP_STORED_TIMEOUT
+		mtype_add_timeout(ext_timeout(x, map), e, ext, map, ret);
+#else
+		ip_set_timeout_set(ext_timeout(x, map), ext->timeout);
+#endif
+
+	if (SET_WITH_COUNTER(set))
+		ip_set_init_counter(ext_counter(x, map), ext);
+	return 0;
+}
+
+static int
+mtype_del(struct ip_set *set, void *value, const struct ip_set_ext *ext,
+	  struct ip_set_ext *mext, u32 flags)
+{
+	struct mtype *map = set->data;
+	const struct mtype_adt_elem *e = value;
+	const void *x = get_ext(map, e->id);
+
+	if (mtype_do_del(e, map) ||
+	    (SET_WITH_TIMEOUT(set) &&
+	     ip_set_timeout_expired(ext_timeout(x, map))))
+		return -IPSET_ERR_EXIST;
+
+	return 0;
+}
+
+static int
+mtype_list(const struct ip_set *set,
+	   struct sk_buff *skb, struct netlink_callback *cb)
+{
+	struct mtype *map = set->data;
+	struct nlattr *adt, *nested;
+	void *x;
+	u32 id, first = cb->args[2];
+
+	adt = ipset_nest_start(skb, IPSET_ATTR_ADT);
+	if (!adt)
+		return -EMSGSIZE;
+	for (; cb->args[2] < map->elements; cb->args[2]++) {
+		id = cb->args[2];
+		x = get_ext(map, id);
+		if (!test_bit(id, map->members) ||
+		    (SET_WITH_TIMEOUT(set) &&
+#ifdef IP_SET_BITMAP_STORED_TIMEOUT
+		     mtype_is_filled((const struct mtype_elem *) x) &&
+#endif
+		     ip_set_timeout_expired(ext_timeout(x, map))))
+			continue;
+		nested = ipset_nest_start(skb, IPSET_ATTR_DATA);
+		if (!nested) {
+			if (id == first) {
+				nla_nest_cancel(skb, adt);
+				return -EMSGSIZE;
+			} else
+				goto nla_put_failure;
+		}
+		if (mtype_do_list(skb, map, id))
+			goto nla_put_failure;
+		if (SET_WITH_TIMEOUT(set)) {
+#ifdef IP_SET_BITMAP_STORED_TIMEOUT
+			if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
+					  htonl(ip_set_timeout_stored(map, id,
+							ext_timeout(x, map)))))
+				goto nla_put_failure;
+#else
+			if (nla_put_net32(skb, IPSET_ATTR_TIMEOUT,
+					  htonl(ip_set_timeout_get(
+							ext_timeout(x, map)))))
+				goto nla_put_failure;
+#endif
+		}
+		if (SET_WITH_COUNTER(set) &&
+		    ip_set_put_counter(skb, ext_counter(x, map)))
+			goto nla_put_failure;
+		ipset_nest_end(skb, nested);
+	}
+	ipset_nest_end(skb, adt);
+
+	/* Set listing finished */
+	cb->args[2] = 0;
+
+	return 0;
+
+nla_put_failure:
+	nla_nest_cancel(skb, nested);
+	ipset_nest_end(skb, adt);
+	if (unlikely(id == first)) {
+		cb->args[2] = 0;
+		return -EMSGSIZE;
+	}
+	return 0;
+}
+
+static void
+mtype_gc(unsigned long ul_set)
+{
+	struct ip_set *set = (struct ip_set *) ul_set;
+	struct mtype *map = set->data;
+	const void *x;
+	u32 id;
+
+	/* We run parallel with other readers (test element)
+	 * but adding/deleting new entries is locked out */
+	read_lock_bh(&set->lock);
+	for (id = 0; id < map->elements; id++)
+		if (mtype_gc_test(id, map)) {
+			x = get_ext(map, id);
+			if (ip_set_timeout_expired(ext_timeout(x, map)))
+				clear_bit(id, map->members);
+		}
+	read_unlock_bh(&set->lock);
+
+	map->gc.expires = jiffies + IPSET_GC_PERIOD(map->timeout) * HZ;
+	add_timer(&map->gc);
+}
+
+static const struct ip_set_type_variant mtype = {
+	.kadt	= mtype_kadt,
+	.uadt	= mtype_uadt,
+	.adt	= {
+		[IPSET_ADD] = mtype_add,
+		[IPSET_DEL] = mtype_del,
+		[IPSET_TEST] = mtype_test,
+	},
+	.destroy = mtype_destroy,
+	.flush	= mtype_flush,
+	.head	= mtype_head,
+	.list	= mtype_list,
+	.same_set = mtype_same_set,
+};
+
+#endif /* __IP_SET_BITMAP_IP_GEN_H */

net/netfilter/ipset/ip_set_core.c

 /* Copyright (C) 2000-2002 Joakim Axelsson <gozem@linux.nu>
  *                         Patrick Schaaf <bof@bof.de>
- * Copyright (C) 2003-2011 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
+ * Copyright (C) 2003-2013 Jozsef Kadlecsik <kadlec@blackhole.kfki.hu>
  *
  * This program is free software; you can redistribute it and/or modify
  * it under the terms of the GNU General Public License version 2 as
@@ -315,6 +315,29 @@ ip_set_get_ipaddr6(struct nlattr *nla, union nf_inet_addr *ipaddr)
 }
 EXPORT_SYMBOL_GPL(ip_set_get_ipaddr6);
 
+int
+ip_set_get_extensions(struct ip_set *set, struct nlattr *tb[],
+		      struct ip_set_ext *ext)
+{
+	if (tb[IPSET_ATTR_TIMEOUT]) {
+		if (!(set->extensions & IPSET_EXT_TIMEOUT))
+			return -IPSET_ERR_TIMEOUT;
+		ext->timeout = ip_set_timeout_uget(tb[IPSET_ATTR_TIMEOUT]);
+	}
+	if (tb[IPSET_ATTR_BYTES] || tb[IPSET_ATTR_PACKETS]) {
+		if (!(set->extensions & IPSET_EXT_COUNTER))
+			return -IPSET_ERR_COUNTER;
+		if (tb[IPSET_ATTR_BYTES])
+			ext->bytes = be64_to_cpu(nla_get_be64(
+						 tb[IPSET_ATTR_BYTES]));
+		if (tb[IPSET_ATTR_PACKETS])
+			ext->packets = be64_to_cpu(nla_get_be64(
+						   tb[IPSET_ATTR_PACKETS]));
+	}
+	return 0;
+}
+EXPORT_SYMBOL_GPL(ip_set_get_extensions);
+
 /*
  * Creating/destroying/renaming/swapping affect the existence and
  * the properties of a set. All of these can be executed from userspace
@@ -365,8 +388,7 @@ ip_set_rcu_get(ip_set_id_t index)
 
 int
 ip_set_test(ip_set_id_t index, const struct sk_buff *skb,
-	    const struct xt_action_param *par,
-	    const struct ip_set_adt_opt *opt)
+	    const struct xt_action_param *par, struct ip_set_adt_opt *opt)
 {
 	struct ip_set *set = ip_set_rcu_get(index);
 	int ret = 0;
@@ -391,7 +413,7 @@ ip_set_test(ip_set_id_t index, const struct sk_buff *skb,
 		ret = 1;
 	} else {
 		/* --return-nomatch: invert matched element */
-		if ((opt->flags & IPSET_RETURN_NOMATCH) &&
+		if ((opt->cmdflags & IPSET_FLAG_RETURN_NOMATCH) &&
 		    (set->type->features & IPSET_TYPE_NOMATCH) &&
 		    (ret > 0 || ret == -ENOTEMPTY))
 			ret = -ret;
@@ -404,8 +426,7 @@ EXPORT_SYMBOL_GPL(ip_set_test);
 
 int
 ip_set_add(ip_set_id_t index, const struct sk_buff *skb,
-	   const struct xt_action_param *par,
-	   const struct ip_set_adt_opt *opt)
+	   const struct xt_action_param *par, struct ip_set_adt_opt *opt)
 {
 	struct ip_set *set = ip_set_rcu_get(index);
 	int ret;
@@ -427,8 +448,7 @@ EXPORT_SYMBOL_GPL(ip_set_add);
 
 int
 ip_set_del(ip_set_id_t index, const struct sk_buff *skb,
-	   const struct xt_action_param *par,
-	   const struct ip_set_adt_opt *opt)
+	   const struct xt_action_param *par, struct ip_set_adt_opt *opt)
 {
 	struct ip_set *set = ip_set_rcu_get(index);
 	int ret = 0;

net/netfilter/nf_nat_proto_sctp.c

@@ -36,7 +36,7 @@ sctp_manip_pkt(struct sk_buff *skb,
 {
 	struct sk_buff *frag;
 	sctp_sctphdr_t *hdr;
-	__be32 crc32;
+	__u32 crc32;
 
 	if (!skb_make_writable(skb, hdroff + sizeof(*hdr)))
 		return false;
@@ -55,8 +55,7 @@ sctp_manip_pkt(struct sk_buff *skb,
 	skb_walk_frags(skb, frag)
 		crc32 = sctp_update_cksum((u8 *)frag->data, skb_headlen(frag),
 					  crc32);
-	crc32 = sctp_end_cksum(crc32);
-	hdr->checksum = crc32;
+	hdr->checksum = sctp_end_cksum(crc32);
 
 	return true;
 }

net/sched/em_ipset.c

@@ -83,7 +83,7 @@ static int em_ipset_match(struct sk_buff *skb, struct tcf_ematch *em,
 	opt.dim = set->dim;
 	opt.flags = set->flags;
 	opt.cmdflags = 0;
-	opt.timeout = ~0u;
+	opt.ext.timeout = ~0u;
 
 	network_offset = skb_network_offset(skb);
 	skb_pull(skb, network_offset);