[NETFILTER] x_tables: Abstraction layer for {ip,ip6,arp}_tables

This monster-patch tries to do the best job for unifying the data
structures and backend interfaces for the three evil clones ip_tables,
ip6_tables and arp_tables.  In an ideal world we would never have
allowed this kind of copy+paste programming... but well, our world
isn't (yet?) ideal.

o introduce a new x_tables module
o {ip,arp,ip6}_tables depend on this x_tables module
o registration functions for tables, matches and targets are only
  wrappers around x_tables provided functions
o all matches/targets that are used from ip_tables and ip6_tables
  are now implemented as xt_FOOBAR.c files and provide module aliases
  to ipt_FOOBAR and ip6t_FOOBAR
o header files for xt_matches are in include/linux/netfilter/,
  include/linux/netfilter_{ipv4,ipv6} contains compatibility wrappers
  around the xt_FOOBAR.h headers

Based on this patchset we're going to further unify the code,
gradually getting rid of all the layer 3 specific assumptions.

Signed-off-by: Harald Welte <laforge@netfilter.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

include/linux/netfilter/nf_conntrack_common.h

@@ -154,6 +154,9 @@ struct ip_conntrack_stat
 	unsigned int expect_delete;
 };
 
+/* call to create an explicit dependency on nf_conntrack. */
+extern void need_conntrack(void);
+
 #endif /* __KERNEL__ */
 
 #endif /* _NF_CONNTRACK_COMMON_H */

include/linux/netfilter/x_tables.h

@@ -0,0 +1,224 @@
+#ifndef _X_TABLES_H
+#define _X_TABLES_H
+
+#define XT_FUNCTION_MAXNAMELEN 30
+#define XT_TABLE_MAXNAMELEN 32
+
+/* The argument to IPT_SO_GET_REVISION_*.  Returns highest revision
+ * kernel supports, if >= revision. */
+struct xt_get_revision
+{
+	char name[XT_FUNCTION_MAXNAMELEN-1];
+
+	u_int8_t revision;
+};
+
+/* CONTINUE verdict for targets */
+#define XT_CONTINUE 0xFFFFFFFF
+
+/* For standard target */
+#define XT_RETURN (-NF_REPEAT - 1)
+
+#define XT_ALIGN(s) (((s) + (__alignof__(void *)-1)) & ~(__alignof__(void *)-1))
+
+/* Standard return verdict, or do jump. */
+#define XT_STANDARD_TARGET ""
+/* Error verdict. */
+#define XT_ERROR_TARGET "ERROR"
+
+/*
+ * New IP firewall options for [gs]etsockopt at the RAW IP level.
+ * Unlike BSD Linux inherits IP options so you don't have to use a raw
+ * socket for this. Instead we check rights in the calls. */
+#define XT_BASE_CTL		64	/* base for firewall socket options */
+
+#define XT_SO_SET_REPLACE	(XT_BASE_CTL)
+#define XT_SO_SET_ADD_COUNTERS	(XT_BASE_CTL + 1)
+#define XT_SO_SET_MAX		XT_SO_SET_ADD_COUNTERS
+
+#define XT_SO_GET_INFO			(XT_BASE_CTL)
+#define XT_SO_GET_ENTRIES		(XT_BASE_CTL + 1)
+#define XT_SO_GET_REVISION_MATCH	(XT_BASE_CTL + 2)
+#define XT_SO_GET_REVISION_TARGET	(XT_BASE_CTL + 3)
+#define XT_SO_GET_MAX			XT_SO_GET_REVISION_TARGET
+
+#define SET_COUNTER(c,b,p) do { (c).bcnt = (b); (c).pcnt = (p); } while(0)
+#define ADD_COUNTER(c,b,p) do { (c).bcnt += (b); (c).pcnt += (p); } while(0)
+
+struct xt_counters
+{
+	u_int64_t pcnt, bcnt;			/* Packet and byte counters */
+};
+
+/* The argument to IPT_SO_ADD_COUNTERS. */
+struct xt_counters_info
+{
+	/* Which table. */
+	char name[XT_TABLE_MAXNAMELEN];
+
+	unsigned int num_counters;
+
+	/* The counters (actually `number' of these). */
+	struct xt_counters counters[0];
+};
+
+#define XT_INV_PROTO		0x40	/* Invert the sense of PROTO. */
+
+#ifdef __KERNEL__
+
+#include <linux/netdevice.h>
+
+#define ASSERT_READ_LOCK(x)
+#define ASSERT_WRITE_LOCK(x)
+#include <linux/netfilter_ipv4/listhelp.h>
+
+struct xt_match
+{
+	struct list_head list;
+
+	const char name[XT_FUNCTION_MAXNAMELEN-1];
+
+	u_int8_t revision;
+
+	/* Return true or false: return FALSE and set *hotdrop = 1 to
+           force immediate packet drop. */
+	/* Arguments changed since 2.6.9, as this must now handle
+	   non-linear skb, using skb_header_pointer and
+	   skb_ip_make_writable. */
+	int (*match)(const struct sk_buff *skb,
+		     const struct net_device *in,
+		     const struct net_device *out,
+		     const void *matchinfo,
+		     int offset,
+		     unsigned int protoff,
+		     int *hotdrop);
+
+	/* Called when user tries to insert an entry of this type. */
+	/* Should return true or false. */
+	int (*checkentry)(const char *tablename,
+			  const void *ip,
+			  void *matchinfo,
+			  unsigned int matchinfosize,
+			  unsigned int hook_mask);
+
+	/* Called when entry of this type deleted. */
+	void (*destroy)(void *matchinfo, unsigned int matchinfosize);
+
+	/* Set this to THIS_MODULE if you are a module, otherwise NULL */
+	struct module *me;
+};
+
+/* Registration hooks for targets. */
+struct xt_target
+{
+	struct list_head list;
+
+	const char name[XT_FUNCTION_MAXNAMELEN-1];
+
+	u_int8_t revision;
+
+	/* Returns verdict. Argument order changed since 2.6.9, as this
+	   must now handle non-linear skbs, using skb_copy_bits and
+	   skb_ip_make_writable. */
+	unsigned int (*target)(struct sk_buff **pskb,
+			       const struct net_device *in,
+			       const struct net_device *out,
+			       unsigned int hooknum,
+			       const void *targinfo,
+			       void *userdata);
+
+	/* Called when user tries to insert an entry of this type:
+           hook_mask is a bitmask of hooks from which it can be
+           called. */
+	/* Should return true or false. */
+	int (*checkentry)(const char *tablename,
+			  const void *entry,
+			  void *targinfo,
+			  unsigned int targinfosize,
+			  unsigned int hook_mask);
+
+	/* Called when entry of this type deleted. */
+	void (*destroy)(void *targinfo, unsigned int targinfosize);
+
+	/* Set this to THIS_MODULE if you are a module, otherwise NULL */
+	struct module *me;
+};
+
+/* Furniture shopping... */
+struct xt_table
+{
+	struct list_head list;
+
+	/* A unique name... */
+	char name[XT_TABLE_MAXNAMELEN];
+
+	/* What hooks you will enter on */
+	unsigned int valid_hooks;
+
+	/* Lock for the curtain */
+	rwlock_t lock;
+
+	/* Man behind the curtain... */
+	//struct ip6t_table_info *private;
+	void *private;
+
+	/* Set this to THIS_MODULE if you are a module, otherwise NULL */
+	struct module *me;
+
+	int af;		/* address/protocol family */
+};
+
+#include <linux/netfilter_ipv4.h>
+
+/* The table itself */
+struct xt_table_info
+{
+	/* Size per table */
+	unsigned int size;
+	/* Number of entries: FIXME. --RR */
+	unsigned int number;
+	/* Initial number of entries. Needed for module usage count */
+	unsigned int initial_entries;
+
+	/* Entry points and underflows */
+	unsigned int hook_entry[NF_IP_NUMHOOKS];
+	unsigned int underflow[NF_IP_NUMHOOKS];
+
+	/* ipt_entry tables: one per CPU */
+	char *entries[NR_CPUS];
+};
+
+extern int xt_register_target(int af, struct xt_target *target);
+extern void xt_unregister_target(int af, struct xt_target *target);
+extern int xt_register_match(int af, struct xt_match *target);
+extern void xt_unregister_match(int af, struct xt_match *target);
+
+extern int xt_register_table(struct xt_table *table,
+			     struct xt_table_info *bootstrap,
+			     struct xt_table_info *newinfo);
+extern void *xt_unregister_table(struct xt_table *table);
+
+extern struct xt_table_info *xt_replace_table(struct xt_table *table,
+					      unsigned int num_counters,
+					      struct xt_table_info *newinfo,
+					      int *error);
+
+extern struct xt_match *xt_find_match(int af, const char *name, u8 revision);
+extern struct xt_target *xt_find_target(int af, const char *name, u8 revision);
+extern struct xt_target *xt_request_find_target(int af, const char *name, 
+						u8 revision);
+extern int xt_find_revision(int af, const char *name, u8 revision, int target,
+			    int *err);
+
+extern struct xt_table *xt_find_table_lock(int af, const char *name);
+extern void xt_table_unlock(struct xt_table *t);
+
+extern int xt_proto_init(int af);
+extern void xt_proto_fini(int af);
+
+extern struct xt_table_info *xt_alloc_table_info(unsigned int size);
+extern void xt_free_table_info(struct xt_table_info *info);
+
+#endif /* __KERNEL__ */
+
+#endif /* _X_TABLES_H */

include/linux/netfilter/xt_CLASSIFY.h

@@ -0,0 +1,8 @@
+#ifndef _XT_CLASSIFY_H
+#define _XT_CLASSIFY_H
+
+struct xt_classify_target_info {
+	u_int32_t priority;
+};
+
+#endif /*_XT_CLASSIFY_H */

include/linux/netfilter/xt_CONNMARK.h

@@ -0,0 +1,25 @@
+#ifndef _XT_CONNMARK_H_target
+#define _XT_CONNMARK_H_target
+
+/* Copyright (C) 2002,2004 MARA Systems AB <http://www.marasystems.com>
+ * by Henrik Nordstrom <hno@marasystems.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+enum {
+	XT_CONNMARK_SET = 0,
+	XT_CONNMARK_SAVE,
+	XT_CONNMARK_RESTORE
+};
+
+struct xt_connmark_target_info {
+	unsigned long mark;
+	unsigned long mask;
+	u_int8_t mode;
+};
+
+#endif /*_XT_CONNMARK_H_target*/

include/linux/netfilter/xt_MARK.h

@@ -0,0 +1,21 @@
+#ifndef _XT_MARK_H_target
+#define _XT_MARK_H_target
+
+/* Version 0 */
+struct xt_mark_target_info {
+	unsigned long mark;
+};
+
+/* Version 1 */
+enum {
+	XT_MARK_SET=0,
+	XT_MARK_AND,
+	XT_MARK_OR,
+};
+
+struct xt_mark_target_info_v1 {
+	unsigned long mark;
+	u_int8_t mode;
+};
+
+#endif /*_XT_MARK_H_target */

include/linux/netfilter/xt_NFQUEUE.h

@@ -0,0 +1,16 @@
+/* iptables module for using NFQUEUE mechanism
+ *
+ * (C) 2005 Harald Welte <laforge@netfilter.org>
+ *
+ * This software is distributed under GNU GPL v2, 1991
+ * 
+*/
+#ifndef _XT_NFQ_TARGET_H
+#define _XT_NFQ_TARGET_H
+
+/* target info */
+struct xt_NFQ_info {
+	u_int16_t queuenum;
+};
+
+#endif /* _XT_NFQ_TARGET_H */

include/linux/netfilter/xt_comment.h

@@ -0,0 +1,10 @@
+#ifndef _XT_COMMENT_H
+#define _XT_COMMENT_H
+
+#define XT_MAX_COMMENT_LEN 256
+
+struct xt_comment_info {
+	unsigned char comment[XT_MAX_COMMENT_LEN];
+};
+
+#endif /* XT_COMMENT_H */

include/linux/netfilter/xt_connbytes.h

@@ -0,0 +1,25 @@
+#ifndef _XT_CONNBYTES_H
+#define _XT_CONNBYTES_H
+
+enum xt_connbytes_what {
+	XT_CONNBYTES_PKTS,
+	XT_CONNBYTES_BYTES,
+	XT_CONNBYTES_AVGPKT,
+};
+
+enum xt_connbytes_direction {
+	XT_CONNBYTES_DIR_ORIGINAL,
+	XT_CONNBYTES_DIR_REPLY,
+	XT_CONNBYTES_DIR_BOTH,
+};
+
+struct xt_connbytes_info
+{
+	struct {
+		aligned_u64 from;	/* count to be matched */
+		aligned_u64 to;		/* count to be matched */
+	} count;
+	u_int8_t what;		/* ipt_connbytes_what */
+	u_int8_t direction;	/* ipt_connbytes_direction */
+};
+#endif

include/linux/netfilter/xt_connmark.h

@@ -0,0 +1,18 @@
+#ifndef _XT_CONNMARK_H
+#define _XT_CONNMARK_H
+
+/* Copyright (C) 2002,2004 MARA Systems AB <http://www.marasystems.com>
+ * by Henrik Nordstrom <hno@marasystems.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ */
+
+struct xt_connmark_info {
+	unsigned long mark, mask;
+	u_int8_t invert;
+};
+
+#endif /*_XT_CONNMARK_H*/

include/linux/netfilter/xt_conntrack.h

@@ -0,0 +1,63 @@
+/* Header file for kernel module to match connection tracking information.
+ * GPL (C) 2001  Marc Boucher (marc@mbsi.ca).
+ */
+
+#ifndef _XT_CONNTRACK_H
+#define _XT_CONNTRACK_H
+
+#include <linux/netfilter/nf_conntrack_tuple_common.h>
+#include <linux/in.h>
+
+#define XT_CONNTRACK_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
+#define XT_CONNTRACK_STATE_INVALID (1 << 0)
+
+#define XT_CONNTRACK_STATE_SNAT (1 << (IP_CT_NUMBER + 1))
+#define XT_CONNTRACK_STATE_DNAT (1 << (IP_CT_NUMBER + 2))
+#define XT_CONNTRACK_STATE_UNTRACKED (1 << (IP_CT_NUMBER + 3))
+
+/* flags, invflags: */
+#define XT_CONNTRACK_STATE	0x01
+#define XT_CONNTRACK_PROTO	0x02
+#define XT_CONNTRACK_ORIGSRC	0x04
+#define XT_CONNTRACK_ORIGDST	0x08
+#define XT_CONNTRACK_REPLSRC	0x10
+#define XT_CONNTRACK_REPLDST	0x20
+#define XT_CONNTRACK_STATUS	0x40
+#define XT_CONNTRACK_EXPIRES	0x80
+
+/* This is exposed to userspace, so remains frozen in time. */
+struct ip_conntrack_old_tuple
+{
+	struct {
+		__u32 ip;
+		union {
+			__u16 all;
+		} u;
+	} src;
+
+	struct {
+		__u32 ip;
+		union {
+			__u16 all;
+		} u;
+
+		/* The protocol. */
+		u16 protonum;
+	} dst;
+};
+
+struct xt_conntrack_info
+{
+	unsigned int statemask, statusmask;
+
+	struct ip_conntrack_old_tuple tuple[IP_CT_DIR_MAX];
+	struct in_addr sipmsk[IP_CT_DIR_MAX], dipmsk[IP_CT_DIR_MAX];
+
+	unsigned long expires_min, expires_max;
+
+	/* Flags word */
+	u_int8_t flags;
+	/* Inverse flags */
+	u_int8_t invflags;
+};
+#endif /*_XT_CONNTRACK_H*/

include/linux/netfilter/xt_dccp.h

@@ -0,0 +1,23 @@
+#ifndef _XT_DCCP_H_
+#define _XT_DCCP_H_
+
+#define XT_DCCP_SRC_PORTS	        0x01
+#define XT_DCCP_DEST_PORTS	        0x02
+#define XT_DCCP_TYPE			0x04
+#define XT_DCCP_OPTION			0x08
+
+#define XT_DCCP_VALID_FLAGS		0x0f
+
+struct xt_dccp_info {
+	u_int16_t dpts[2];  /* Min, Max */
+	u_int16_t spts[2];  /* Min, Max */
+
+	u_int16_t flags;
+	u_int16_t invflags;
+
+	u_int16_t typemask;
+	u_int8_t option;
+};
+
+#endif /* _XT_DCCP_H_ */
+

include/linux/netfilter/xt_helper.h

@@ -0,0 +1,8 @@
+#ifndef _XT_HELPER_H
+#define _XT_HELPER_H
+
+struct xt_helper_info {
+	int invert;
+	char name[30];
+};
+#endif /* _XT_HELPER_H */

include/linux/netfilter/xt_length.h

@@ -0,0 +1,9 @@
+#ifndef _XT_LENGTH_H
+#define _XT_LENGTH_H
+
+struct xt_length_info {
+    u_int16_t	min, max;
+    u_int8_t	invert;
+};
+
+#endif /*_XT_LENGTH_H*/

include/linux/netfilter/xt_limit.h

@@ -0,0 +1,21 @@
+#ifndef _XT_RATE_H
+#define _XT_RATE_H
+
+/* timings are in milliseconds. */
+#define XT_LIMIT_SCALE 10000
+
+/* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
+   seconds, or one every 59 hours. */
+struct xt_rateinfo {
+	u_int32_t avg;    /* Average secs between packets * scale */
+	u_int32_t burst;  /* Period multiplier for upper limit. */
+
+	/* Used internally by the kernel */
+	unsigned long prev;
+	u_int32_t credit;
+	u_int32_t credit_cap, cost;
+
+	/* Ugly, ugly fucker. */
+	struct xt_rateinfo *master;
+};
+#endif /*_XT_RATE_H*/

include/linux/netfilter/xt_mac.h

@@ -0,0 +1,8 @@
+#ifndef _XT_MAC_H
+#define _XT_MAC_H
+
+struct xt_mac_info {
+    unsigned char srcaddr[ETH_ALEN];
+    int invert;
+};
+#endif /*_XT_MAC_H*/

include/linux/netfilter/xt_mark.h

@@ -0,0 +1,9 @@
+#ifndef _XT_MARK_H
+#define _XT_MARK_H
+
+struct xt_mark_info {
+    unsigned long mark, mask;
+    u_int8_t invert;
+};
+
+#endif /*_XT_MARK_H*/

include/linux/netfilter/xt_physdev.h

@@ -0,0 +1,24 @@
+#ifndef _XT_PHYSDEV_H
+#define _XT_PHYSDEV_H
+
+#ifdef __KERNEL__
+#include <linux/if.h>
+#endif
+
+#define XT_PHYSDEV_OP_IN		0x01
+#define XT_PHYSDEV_OP_OUT		0x02
+#define XT_PHYSDEV_OP_BRIDGED		0x04
+#define XT_PHYSDEV_OP_ISIN		0x08
+#define XT_PHYSDEV_OP_ISOUT		0x10
+#define XT_PHYSDEV_OP_MASK		(0x20 - 1)
+
+struct xt_physdev_info {
+	char physindev[IFNAMSIZ];
+	char in_mask[IFNAMSIZ];
+	char physoutdev[IFNAMSIZ];
+	char out_mask[IFNAMSIZ];
+	u_int8_t invert;
+	u_int8_t bitmask;
+};
+
+#endif /*_XT_PHYSDEV_H*/

include/linux/netfilter/xt_pkttype.h

@@ -0,0 +1,8 @@
+#ifndef _XT_PKTTYPE_H
+#define _XT_PKTTYPE_H
+
+struct xt_pkttype_info {
+	int	pkttype;
+	int	invert;
+};
+#endif /*_XT_PKTTYPE_H*/

include/linux/netfilter/xt_realm.h

@@ -0,0 +1,10 @@
+#ifndef _XT_REALM_H
+#define _XT_REALM_H
+
+struct xt_realm_info {
+	u_int32_t id;
+	u_int32_t mask;
+	u_int8_t invert;
+};
+
+#endif /* _XT_REALM_H */

include/linux/netfilter/xt_sctp.h

@@ -0,0 +1,107 @@
+#ifndef _XT_SCTP_H_
+#define _XT_SCTP_H_
+
+#define XT_SCTP_SRC_PORTS	        0x01
+#define XT_SCTP_DEST_PORTS	        0x02
+#define XT_SCTP_CHUNK_TYPES		0x04
+
+#define XT_SCTP_VALID_FLAGS		0x07
+
+#define ELEMCOUNT(x) (sizeof(x)/sizeof(x[0]))
+
+
+struct xt_sctp_flag_info {
+	u_int8_t chunktype;
+	u_int8_t flag;
+	u_int8_t flag_mask;
+};
+
+#define XT_NUM_SCTP_FLAGS	4
+
+struct xt_sctp_info {
+	u_int16_t dpts[2];  /* Min, Max */
+	u_int16_t spts[2];  /* Min, Max */
+
+	u_int32_t chunkmap[256 / sizeof (u_int32_t)];  /* Bit mask of chunks to be matched according to RFC 2960 */
+
+#define SCTP_CHUNK_MATCH_ANY   0x01  /* Match if any of the chunk types are present */
+#define SCTP_CHUNK_MATCH_ALL   0x02  /* Match if all of the chunk types are present */
+#define SCTP_CHUNK_MATCH_ONLY  0x04  /* Match if these are the only chunk types present */
+
+	u_int32_t chunk_match_type;
+	struct xt_sctp_flag_info flag_info[XT_NUM_SCTP_FLAGS];
+	int flag_count;
+
+	u_int32_t flags;
+	u_int32_t invflags;
+};
+
+#define bytes(type) (sizeof(type) * 8)
+
+#define SCTP_CHUNKMAP_SET(chunkmap, type) 		\
+	do { 						\
+		chunkmap[type / bytes(u_int32_t)] |= 	\
+			1 << (type % bytes(u_int32_t));	\
+	} while (0)
+
+#define SCTP_CHUNKMAP_CLEAR(chunkmap, type)		 	\
+	do {							\
+		chunkmap[type / bytes(u_int32_t)] &= 		\
+			~(1 << (type % bytes(u_int32_t)));	\
+	} while (0)
+
+#define SCTP_CHUNKMAP_IS_SET(chunkmap, type) 			\
+({								\
+	(chunkmap[type / bytes (u_int32_t)] & 			\
+		(1 << (type % bytes (u_int32_t)))) ? 1: 0;	\
+})
+
+#define SCTP_CHUNKMAP_RESET(chunkmap) 				\
+	do {							\
+		int i; 						\
+		for (i = 0; i < ELEMCOUNT(chunkmap); i++)	\
+			chunkmap[i] = 0;			\
+	} while (0)
+
+#define SCTP_CHUNKMAP_SET_ALL(chunkmap) 			\
+	do {							\
+		int i; 						\
+		for (i = 0; i < ELEMCOUNT(chunkmap); i++) 	\
+			chunkmap[i] = ~0;			\
+	} while (0)
+
+#define SCTP_CHUNKMAP_COPY(destmap, srcmap) 			\
+	do {							\
+		int i; 						\
+		for (i = 0; i < ELEMCOUNT(chunkmap); i++) 	\
+			destmap[i] = srcmap[i];			\
+	} while (0)
+
+#define SCTP_CHUNKMAP_IS_CLEAR(chunkmap) 		\
+({							\
+	int i; 						\
+	int flag = 1;					\
+	for (i = 0; i < ELEMCOUNT(chunkmap); i++) {	\
+		if (chunkmap[i]) {			\
+			flag = 0;			\
+			break;				\
+		}					\
+	}						\
+        flag;						\
+})
+
+#define SCTP_CHUNKMAP_IS_ALL_SET(chunkmap) 		\
+({							\
+	int i; 						\
+	int flag = 1;					\
+	for (i = 0; i < ELEMCOUNT(chunkmap); i++) {	\
+		if (chunkmap[i] != ~0) {		\
+			flag = 0;			\
+				break;			\
+		}					\
+	}						\
+        flag;						\
+})
+
+#endif /* _XT_SCTP_H_ */
+

include/linux/netfilter/xt_state.h

@@ -0,0 +1,13 @@
+#ifndef _XT_STATE_H
+#define _XT_STATE_H
+
+#define XT_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
+#define XT_STATE_INVALID (1 << 0)
+
+#define XT_STATE_UNTRACKED (1 << (IP_CT_NUMBER + 1))
+
+struct xt_state_info
+{
+	unsigned int statemask;
+};
+#endif /*_XT_STATE_H*/

include/linux/netfilter/xt_string.h

@@ -0,0 +1,18 @@
+#ifndef _XT_STRING_H
+#define _XT_STRING_H
+
+#define XT_STRING_MAX_PATTERN_SIZE 128
+#define XT_STRING_MAX_ALGO_NAME_SIZE 16
+
+struct xt_string_info
+{
+	u_int16_t from_offset;
+	u_int16_t to_offset;
+	char	  algo[XT_STRING_MAX_ALGO_NAME_SIZE];
+	char 	  pattern[XT_STRING_MAX_PATTERN_SIZE];
+	u_int8_t  patlen;
+	u_int8_t  invert;
+	struct ts_config __attribute__((aligned(8))) *config;
+};
+
+#endif /*_XT_STRING_H*/

include/linux/netfilter/xt_tcpmss.h

@@ -0,0 +1,9 @@
+#ifndef _XT_TCPMSS_MATCH_H
+#define _XT_TCPMSS_MATCH_H
+
+struct xt_tcpmss_match_info {
+    u_int16_t mss_min, mss_max;
+    u_int8_t invert;
+};
+
+#endif /*_XT_TCPMSS_MATCH_H*/

include/linux/netfilter/xt_tcpudp.h

@@ -0,0 +1,36 @@
+#ifndef _XT_TCPUDP_H
+#define _XT_TCPUDP_H
+
+/* TCP matching stuff */
+struct xt_tcp
+{
+	u_int16_t spts[2];			/* Source port range. */
+	u_int16_t dpts[2];			/* Destination port range. */
+	u_int8_t option;			/* TCP Option iff non-zero*/
+	u_int8_t flg_mask;			/* TCP flags mask byte */
+	u_int8_t flg_cmp;			/* TCP flags compare byte */
+	u_int8_t invflags;			/* Inverse flags */
+};
+
+/* Values for "inv" field in struct ipt_tcp. */
+#define XT_TCP_INV_SRCPT	0x01	/* Invert the sense of source ports. */
+#define XT_TCP_INV_DSTPT	0x02	/* Invert the sense of dest ports. */
+#define XT_TCP_INV_FLAGS	0x04	/* Invert the sense of TCP flags. */
+#define XT_TCP_INV_OPTION	0x08	/* Invert the sense of option test. */
+#define XT_TCP_INV_MASK		0x0F	/* All possible flags. */
+
+/* UDP matching stuff */
+struct xt_udp
+{
+	u_int16_t spts[2];			/* Source port range. */
+	u_int16_t dpts[2];			/* Destination port range. */
+	u_int8_t invflags;			/* Inverse flags */
+};
+
+/* Values for "invflags" field in struct ipt_udp. */
+#define XT_UDP_INV_SRCPT	0x01	/* Invert the sense of source ports. */
+#define XT_UDP_INV_DSTPT	0x02	/* Invert the sense of dest ports. */
+#define XT_UDP_INV_MASK	0x03	/* All possible flags. */
+
+
+#endif

include/linux/netfilter_arp/arp_tables.h

@@ -19,8 +19,12 @@
 #include <linux/compiler.h>
 #include <linux/netfilter_arp.h>
 
-#define ARPT_FUNCTION_MAXNAMELEN 30
-#define ARPT_TABLE_MAXNAMELEN 32
+#include <linux/netfilter/x_tables.h>
+
+#define ARPT_FUNCTION_MAXNAMELEN XT_FUNCTION_MAXNAMELEN
+#define ARPT_TABLE_MAXNAMELEN XT_TABLE_MAXNAMELEN
+#define arpt_target xt_target
+#define arpt_table xt_table
 
 #define ARPT_DEV_ADDR_LEN_MAX 16
 
@@ -91,11 +95,6 @@ struct arpt_standard_target
 	int verdict;
 };
 
-struct arpt_counters
-{
-	u_int64_t pcnt, bcnt;			/* Packet and byte counters */
-};
-
 /* Values for "flag" field in struct arpt_ip (general arp structure).
  * No flags defined yet.
  */
@@ -130,7 +129,7 @@ struct arpt_entry
 	unsigned int comefrom;
 
 	/* Packet and byte counters. */
-	struct arpt_counters counters;
+	struct xt_counters counters;
 
 	/* The matches (if any), then the target. */
 	unsigned char elems[0];
@@ -141,23 +140,24 @@ struct arpt_entry
  * Unlike BSD Linux inherits IP options so you don't have to use a raw
  * socket for this. Instead we check rights in the calls.
  */
-#define ARPT_BASE_CTL		96	/* base for firewall socket options */
+#define ARPT_CTL_OFFSET		32
+#define ARPT_BASE_CTL		(XT_BASE_CTL+ARPT_CTL_OFFSET)
 
-#define ARPT_SO_SET_REPLACE		(ARPT_BASE_CTL)
-#define ARPT_SO_SET_ADD_COUNTERS	(ARPT_BASE_CTL + 1)
-#define ARPT_SO_SET_MAX			ARPT_SO_SET_ADD_COUNTERS
+#define ARPT_SO_SET_REPLACE		(XT_SO_SET_REPLACE+ARPT_CTL_OFFSET)
+#define ARPT_SO_SET_ADD_COUNTERS	(XT_SO_SET_ADD_COUNTERS+ARPT_CTL_OFFSET)
+#define ARPT_SO_SET_MAX			(XT_SO_SET_MAX+ARPT_CTL_OFFSET)
 
-#define ARPT_SO_GET_INFO		(ARPT_BASE_CTL)
-#define ARPT_SO_GET_ENTRIES		(ARPT_BASE_CTL + 1)
-/* #define ARPT_SO_GET_REVISION_MATCH	(ARPT_BASE_CTL + 2)*/
-#define ARPT_SO_GET_REVISION_TARGET	(ARPT_BASE_CTL + 3)
-#define ARPT_SO_GET_MAX			ARPT_SO_GET_REVISION_TARGET
+#define ARPT_SO_GET_INFO		(XT_SO_GET_INFO+ARPT_CTL_OFFSET)
+#define ARPT_SO_GET_ENTRIES		(XT_SO_GET_ENTRIES+ARPT_CTL_OFFSET)
+/* #define ARPT_SO_GET_REVISION_MATCH	XT_SO_GET_REVISION_MATCH  */
+#define ARPT_SO_GET_REVISION_TARGET	(XT_SO_GET_REVISION_TARGET+ARPT_CTL_OFFSET)
+#define ARPT_SO_GET_MAX			(XT_SO_GET_REVISION_TARGET+ARPT_CTL_OFFSET)
 
 /* CONTINUE verdict for targets */
-#define ARPT_CONTINUE 0xFFFFFFFF
+#define ARPT_CONTINUE XT_CONTINUE
 
 /* For standard target */
-#define ARPT_RETURN (-NF_REPEAT - 1)
+#define ARPT_RETURN XT_RETURN
 
 /* The argument to ARPT_SO_GET_INFO */
 struct arpt_getinfo
@@ -208,23 +208,14 @@ struct arpt_replace
 	/* Number of counters (must be equal to current number of entries). */
 	unsigned int num_counters;
 	/* The old entries' counters. */
-	struct arpt_counters __user *counters;
+	struct xt_counters __user *counters;
 
 	/* The entries (hang off end: not really an array). */
 	struct arpt_entry entries[0];
 };
 
 /* The argument to ARPT_SO_ADD_COUNTERS. */
-struct arpt_counters_info
-{
-	/* Which table. */
-	char name[ARPT_TABLE_MAXNAMELEN];
-
-	unsigned int num_counters;
-
-	/* The counters (actually `number' of these). */
-	struct arpt_counters counters[0];
-};
+#define arpt_counters_info xt_counters_info
 
 /* The argument to ARPT_SO_GET_ENTRIES. */
 struct arpt_get_entries
@@ -239,19 +230,10 @@ struct arpt_get_entries
 	struct arpt_entry entrytable[0];
 };
 
-/* The argument to ARPT_SO_GET_REVISION_*.  Returns highest revision
- * kernel supports, if >= revision. */
-struct arpt_get_revision
-{
-	char name[ARPT_FUNCTION_MAXNAMELEN-1];
-
-	u_int8_t revision;
-};
-
 /* Standard return verdict, or do jump. */
-#define ARPT_STANDARD_TARGET ""
+#define ARPT_STANDARD_TARGET XT_STANDARD_TARGET
 /* Error verdict. */
-#define ARPT_ERROR_TARGET "ERROR"
+#define ARPT_ERROR_TARGET XT_ERROR_TARGET
 
 /* Helper functions */
 static __inline__ struct arpt_entry_target *arpt_get_target(struct arpt_entry *e)
@@ -281,63 +263,8 @@ static __inline__ struct arpt_entry_target *arpt_get_target(struct arpt_entry *e
  */
 #ifdef __KERNEL__
 
-/* Registration hooks for targets. */
-struct arpt_target
-{
-	struct list_head list;
-
-	const char name[ARPT_FUNCTION_MAXNAMELEN-1];
-
-	u_int8_t revision;
-
-	/* Returns verdict. */
-	unsigned int (*target)(struct sk_buff **pskb,
-			       unsigned int hooknum,
-			       const struct net_device *in,
-			       const struct net_device *out,
-			       const void *targinfo,
-			       void *userdata);
-
-	/* Called when user tries to insert an entry of this type:
-           hook_mask is a bitmask of hooks from which it can be
-           called. */
-	/* Should return true or false. */
-	int (*checkentry)(const char *tablename,
-			  const struct arpt_entry *e,
-			  void *targinfo,
-			  unsigned int targinfosize,
-			  unsigned int hook_mask);
-
-	/* Called when entry of this type deleted. */
-	void (*destroy)(void *targinfo, unsigned int targinfosize);
-
-	/* Set this to THIS_MODULE if you are a module, otherwise NULL */
-	struct module *me;
-};
-
-extern int arpt_register_target(struct arpt_target *target);
-extern void arpt_unregister_target(struct arpt_target *target);
-
-/* Furniture shopping... */
-struct arpt_table
-{
-	struct list_head list;
-
-	/* A unique name... */
-	char name[ARPT_TABLE_MAXNAMELEN];
-
-	/* What hooks you will enter on */
-	unsigned int valid_hooks;
-
-	/* Lock for the curtain */
-	rwlock_t lock;
-
-	/* Man behind the curtain... */
-	struct arpt_table_info *private;
-
-	/* Set this to THIS_MODULE if you are a module, otherwise NULL */
-	struct module *me;
-};
+#define arpt_register_target(tgt) xt_register_target(NF_ARP, tgt)
+#define arpt_unregister_target(tgt) xt_unregister_target(NF_ARP, tgt)
 
 extern int arpt_register_table(struct arpt_table *table,
 			       const struct arpt_replace *repl);

include/linux/netfilter_ipv4/ip_conntrack.h

@@ -199,9 +199,6 @@ ip_conntrack_put(struct ip_conntrack *ct)
 	nf_conntrack_put(&ct->ct_general);
 }
 
-/* call to create an explicit dependency on ip_conntrack. */
-extern void need_ip_conntrack(void);
-
 extern int invert_tuplepr(struct ip_conntrack_tuple *inverse,
 			  const struct ip_conntrack_tuple *orig);
 

include/linux/netfilter_ipv4/ip_tables.h

@@ -25,8 +25,14 @@
 #include <linux/compiler.h>
 #include <linux/netfilter_ipv4.h>
 
-#define IPT_FUNCTION_MAXNAMELEN 30
-#define IPT_TABLE_MAXNAMELEN 32
+#include <linux/netfilter/x_tables.h>
+
+#define IPT_FUNCTION_MAXNAMELEN XT_FUNCTION_MAXNAMELEN
+#define IPT_TABLE_MAXNAMELEN XT_FUNCTION_MAXNAMELEN
+#define ipt_match xt_match
+#define ipt_target xt_target
+#define ipt_table xt_table
+#define ipt_get_revision xt_get_revision
 
 /* Yes, Virginia, you have to zero the padding. */
 struct ipt_ip {
@@ -102,10 +108,7 @@ struct ipt_standard_target
 	int verdict;
 };
 
-struct ipt_counters
-{
-	u_int64_t pcnt, bcnt;			/* Packet and byte counters */
-};
+#define ipt_counters xt_counters
 
 /* Values for "flag" field in struct ipt_ip (general ip structure). */
 #define IPT_F_FRAG		0x01	/* Set if rule is a fragment rule */
@@ -119,7 +122,7 @@ struct ipt_counters
 #define IPT_INV_SRCIP		0x08	/* Invert the sense of SRC IP. */
 #define IPT_INV_DSTIP		0x10	/* Invert the sense of DST OP. */
 #define IPT_INV_FRAG		0x20	/* Invert the sense of FRAG. */
-#define IPT_INV_PROTO		0x40	/* Invert the sense of PROTO. */
+#define IPT_INV_PROTO		XT_INV_PROTO
 #define IPT_INV_MASK		0x7F	/* All possible flag bits mask. */
 
 /* This structure defines each of the firewall rules.  Consists of 3
@@ -141,7 +144,7 @@ struct ipt_entry
 	unsigned int comefrom;
 
 	/* Packet and byte counters. */
-	struct ipt_counters counters;
+	struct xt_counters counters;
 
 	/* The matches (if any), then the target. */
 	unsigned char elems[0];
@@ -151,54 +154,34 @@ struct ipt_entry
  * New IP firewall options for [gs]etsockopt at the RAW IP level.
  * Unlike BSD Linux inherits IP options so you don't have to use a raw
  * socket for this. Instead we check rights in the calls. */
-#define IPT_BASE_CTL		64	/* base for firewall socket options */
+#define IPT_BASE_CTL		XT_BASE_CTL
 
-#define IPT_SO_SET_REPLACE	(IPT_BASE_CTL)
-#define IPT_SO_SET_ADD_COUNTERS	(IPT_BASE_CTL + 1)
-#define IPT_SO_SET_MAX		IPT_SO_SET_ADD_COUNTERS
+#define IPT_SO_SET_REPLACE	XT_SO_SET_REPLACE
+#define IPT_SO_SET_ADD_COUNTERS	XT_SO_SET_ADD_COUNTERS
+#define IPT_SO_SET_MAX		XT_SO_SET_MAX
 
-#define IPT_SO_GET_INFO			(IPT_BASE_CTL)
-#define IPT_SO_GET_ENTRIES		(IPT_BASE_CTL + 1)
-#define IPT_SO_GET_REVISION_MATCH	(IPT_BASE_CTL + 2)
-#define IPT_SO_GET_REVISION_TARGET	(IPT_BASE_CTL + 3)
-#define IPT_SO_GET_MAX			IPT_SO_GET_REVISION_TARGET
+#define IPT_SO_GET_INFO			XT_SO_GET_INFO
+#define IPT_SO_GET_ENTRIES		XT_SO_GET_ENTRIES
+#define IPT_SO_GET_REVISION_MATCH	XT_SO_GET_REVISION_MATCH
+#define IPT_SO_GET_REVISION_TARGET	XT_SO_GET_REVISION_TARGET
+#define IPT_SO_GET_MAX			XT_SO_GET_REVISION_TARGET
 
-/* CONTINUE verdict for targets */
-#define IPT_CONTINUE 0xFFFFFFFF
+#define IPT_CONTINUE XT_CONTINUE
+#define IPT_RETURN XT_RETURN
 
-/* For standard target */
-#define IPT_RETURN (-NF_REPEAT - 1)
+#include <linux/netfilter/xt_tcpudp.h>
+#define ipt_udp xt_udp
+#define ipt_tcp xt_tcp
 
-/* TCP matching stuff */
-struct ipt_tcp
-{
-	u_int16_t spts[2];			/* Source port range. */
-	u_int16_t dpts[2];			/* Destination port range. */
-	u_int8_t option;			/* TCP Option iff non-zero*/
-	u_int8_t flg_mask;			/* TCP flags mask byte */
-	u_int8_t flg_cmp;			/* TCP flags compare byte */
-	u_int8_t invflags;			/* Inverse flags */
-};
-
-/* Values for "inv" field in struct ipt_tcp. */
-#define IPT_TCP_INV_SRCPT	0x01	/* Invert the sense of source ports. */
-#define IPT_TCP_INV_DSTPT	0x02	/* Invert the sense of dest ports. */
-#define IPT_TCP_INV_FLAGS	0x04	/* Invert the sense of TCP flags. */
-#define IPT_TCP_INV_OPTION	0x08	/* Invert the sense of option test. */
-#define IPT_TCP_INV_MASK	0x0F	/* All possible flags. */
-
-/* UDP matching stuff */
-struct ipt_udp
-{
-	u_int16_t spts[2];			/* Source port range. */
-	u_int16_t dpts[2];			/* Destination port range. */
-	u_int8_t invflags;			/* Inverse flags */
-};
+#define IPT_TCP_INV_SRCPT	XT_TCP_INV_SRCPT
+#define IPT_TCP_INV_DSTPT	XT_TCP_INV_DSTPT
+#define IPT_TCP_INV_FLAGS	XT_TCP_INV_FLAGS
+#define IPT_TCP_INV_OPTION	XT_TCP_INV_OPTION
+#define IPT_TCP_INV_MASK	XT_TCP_INV_MASK
 
-/* Values for "invflags" field in struct ipt_udp. */
-#define IPT_UDP_INV_SRCPT	0x01	/* Invert the sense of source ports. */
-#define IPT_UDP_INV_DSTPT	0x02	/* Invert the sense of dest ports. */
-#define IPT_UDP_INV_MASK	0x03	/* All possible flags. */
+#define IPT_UDP_INV_SRCPT	XT_UDP_INV_SRCPT
+#define IPT_UDP_INV_DSTPT	XT_UDP_INV_DSTPT
+#define IPT_UDP_INV_MASK	XT_UDP_INV_MASK
 
 /* ICMP matching stuff */
 struct ipt_icmp
@@ -260,23 +243,14 @@ struct ipt_replace
 	/* Number of counters (must be equal to current number of entries). */
 	unsigned int num_counters;
 	/* The old entries' counters. */
-	struct ipt_counters __user *counters;
+	struct xt_counters __user *counters;
 
 	/* The entries (hang off end: not really an array). */
 	struct ipt_entry entries[0];
 };
 
 /* The argument to IPT_SO_ADD_COUNTERS. */
-struct ipt_counters_info
-{
-	/* Which table. */
-	char name[IPT_TABLE_MAXNAMELEN];
-
-	unsigned int num_counters;
-
-	/* The counters (actually `number' of these). */
-	struct ipt_counters counters[0];
-};
+#define ipt_counters_info xt_counters_info
 
 /* The argument to IPT_SO_GET_ENTRIES. */
 struct ipt_get_entries
@@ -291,19 +265,10 @@ struct ipt_get_entries
 	struct ipt_entry entrytable[0];
 };
 
-/* The argument to IPT_SO_GET_REVISION_*.  Returns highest revision
- * kernel supports, if >= revision. */
-struct ipt_get_revision
-{
-	char name[IPT_FUNCTION_MAXNAMELEN-1];
-
-	u_int8_t revision;
-};
-
 /* Standard return verdict, or do jump. */
-#define IPT_STANDARD_TARGET ""
+#define IPT_STANDARD_TARGET XT_STANDARD_TARGET
 /* Error verdict. */
-#define IPT_ERROR_TARGET "ERROR"
+#define IPT_ERROR_TARGET XT_ERROR_TARGET
 
 /* Helper functions */
 static __inline__ struct ipt_entry_target *
@@ -356,103 +321,18 @@ ipt_get_target(struct ipt_entry *e)
 #include <linux/init.h>
 extern void ipt_init(void) __init;
 
-struct ipt_match
-{
-	struct list_head list;
-
-	const char name[IPT_FUNCTION_MAXNAMELEN-1];
-
-	u_int8_t revision;
-
-	/* Return true or false: return FALSE and set *hotdrop = 1 to
-           force immediate packet drop. */
-	/* Arguments changed since 2.4, as this must now handle
-           non-linear skbs, using skb_copy_bits and
-           skb_ip_make_writable. */
-	int (*match)(const struct sk_buff *skb,
-		     const struct net_device *in,
-		     const struct net_device *out,
-		     const void *matchinfo,
-		     int offset,
-		     int *hotdrop);
-
-	/* Called when user tries to insert an entry of this type. */
-	/* Should return true or false. */
-	int (*checkentry)(const char *tablename,
-			  const struct ipt_ip *ip,
-			  void *matchinfo,
-			  unsigned int matchinfosize,
-			  unsigned int hook_mask);
-
-	/* Called when entry of this type deleted. */
-	void (*destroy)(void *matchinfo, unsigned int matchinfosize);
-
-	/* Set this to THIS_MODULE. */
-	struct module *me;
-};
-
-/* Registration hooks for targets. */
-struct ipt_target
-{
-	struct list_head list;
-
-	const char name[IPT_FUNCTION_MAXNAMELEN-1];
-
-	u_int8_t revision;
-
-	/* Called when user tries to insert an entry of this type:
-           hook_mask is a bitmask of hooks from which it can be
-           called. */
-	/* Should return true or false. */
-	int (*checkentry)(const char *tablename,
-			  const struct ipt_entry *e,
-			  void *targinfo,
-			  unsigned int targinfosize,
-			  unsigned int hook_mask);
-
-	/* Called when entry of this type deleted. */
-	void (*destroy)(void *targinfo, unsigned int targinfosize);
-
-	/* Returns verdict.  Argument order changed since 2.4, as this
-           must now handle non-linear skbs, using skb_copy_bits and
-           skb_ip_make_writable. */
-	unsigned int (*target)(struct sk_buff **pskb,
-			       const struct net_device *in,
-			       const struct net_device *out,
-			       unsigned int hooknum,
-			       const void *targinfo,
-			       void *userdata);
-
-	/* Set this to THIS_MODULE. */
-	struct module *me;
-};
+#define ipt_register_target(tgt) xt_register_target(AF_INET, tgt)
+#define ipt_unregister_target(tgt) xt_unregister_target(AF_INET, tgt)
 
-extern int ipt_register_target(struct ipt_target *target);
-extern void ipt_unregister_target(struct ipt_target *target);
+#define ipt_register_match(mtch) xt_register_match(AF_INET, mtch)
+#define ipt_unregister_match(mtch) xt_unregister_match(AF_INET, mtch)
 
-extern int ipt_register_match(struct ipt_match *match);
-extern void ipt_unregister_match(struct ipt_match *match);
+//#define ipt_register_table(tbl, repl) xt_register_table(AF_INET, tbl, repl)
+//#define ipt_unregister_table(tbl) xt_unregister_table(AF_INET, tbl)
 
-/* Furniture shopping... */
-struct ipt_table
-{
-	struct list_head list;
-
-	/* A unique name... */
-	char name[IPT_TABLE_MAXNAMELEN];
-
-	/* What hooks you will enter on */
-	unsigned int valid_hooks;
-
-	/* Lock for the curtain */
-	rwlock_t lock;
-
-	/* Man behind the curtain... */
-	struct ipt_table_info *private;
-
-	/* Set to THIS_MODULE. */
-	struct module *me;
-};
+extern int ipt_register_table(struct ipt_table *table,
+			      const struct ipt_replace *repl);
+extern void ipt_unregister_table(struct ipt_table *table);
 
 /* net/sched/ipt.c: Gimme access to your targets!  Gets target->me. */
 extern struct ipt_target *ipt_find_target(const char *name, u8 revision);
@@ -476,9 +356,6 @@ struct ipt_error
 	struct ipt_error_target target;
 };
 
-extern int ipt_register_table(struct ipt_table *table,
-			      const struct ipt_replace *repl);
-extern void ipt_unregister_table(struct ipt_table *table);
 extern unsigned int ipt_do_table(struct sk_buff **pskb,
 				 unsigned int hook,
 				 const struct net_device *in,
@@ -486,6 +363,6 @@ extern unsigned int ipt_do_table(struct sk_buff **pskb,
 				 struct ipt_table *table,
 				 void *userdata);
 
-#define IPT_ALIGN(s) (((s) + (__alignof__(struct ipt_entry)-1)) & ~(__alignof__(struct ipt_entry)-1))
+#define IPT_ALIGN(s) XT_ALIGN(s)
 #endif /*__KERNEL__*/
 #endif /* _IPTABLES_H */

include/linux/netfilter_ipv4/ipt_CLASSIFY.h

@@ -1,8 +1,7 @@
 #ifndef _IPT_CLASSIFY_H
 #define _IPT_CLASSIFY_H
 
-struct ipt_classify_target_info {
-	u_int32_t priority;
-};
+#include <linux/netfilter/xt_CLASSIFY.h>
+#define ipt_classify_target_info xt_classify_target_info
 
 #endif /*_IPT_CLASSIFY_H */

include/linux/netfilter_ipv4/ipt_CONNMARK.h

@@ -9,17 +9,11 @@
  * the Free Software Foundation; either version 2 of the License, or
  * (at your option) any later version.
  */
+#include <linux/netfilter/xt_CONNMARK.h>
+#define IPT_CONNMARK_SET	XT_CONNMARK_SET
+#define IPT_CONNMARK_SAVE	XT_CONNMARK_SAVE
+#define	IPT_CONNMARK_RESTORE	XT_CONNMARK_RESTORE
 
-enum {
-	IPT_CONNMARK_SET = 0,
-	IPT_CONNMARK_SAVE,
-	IPT_CONNMARK_RESTORE
-};
-
-struct ipt_connmark_target_info {
-	unsigned long mark;
-	unsigned long mask;
-	u_int8_t mode;
-};
+#define ipt_connmark_target_info xt_connmark_target_info
 
 #endif /*_IPT_CONNMARK_H_target*/

include/linux/netfilter_ipv4/ipt_MARK.h

@@ -1,20 +1,18 @@
 #ifndef _IPT_MARK_H_target
 #define _IPT_MARK_H_target
 
+/* Backwards compatibility for old userspace */
+
+#include <linux/netfilter/xt_MARK.h>
+
 /* Version 0 */
-struct ipt_mark_target_info {
-	unsigned long mark;
-};
+#define ipt_mark_target_info xt_mark_target_info
 
 /* Version 1 */
-enum {
-	IPT_MARK_SET=0,
-	IPT_MARK_AND,
-	IPT_MARK_OR
-};
+#define IPT_MARK_SET	XT_MARK_SET
+#define IPT_MARK_AND	XT_MARK_AND
+#define	IPT_MARK_OR	XT_MARK_OR
+
+#define ipt_mark_target_info_v1 xt_mark_target_info_v1
 
-struct ipt_mark_target_info_v1 {
-	unsigned long mark;
-	u_int8_t mode;
-};
 #endif /*_IPT_MARK_H_target*/

include/linux/netfilter_ipv4/ipt_NFQUEUE.h

@@ -8,9 +8,9 @@
 #ifndef _IPT_NFQ_TARGET_H
 #define _IPT_NFQ_TARGET_H
 
-/* target info */
-struct ipt_NFQ_info {
-	u_int16_t queuenum;
-};
+/* Backwards compatibility for old userspace */
+#include <linux/netfilter/xt_NFQUEUE.h>
+
+#define ipt_NFQ_info xt_NFQ_info
 
 #endif /* _IPT_DSCP_TARGET_H */

include/linux/netfilter_ipv4/ipt_comment.h

@@ -1,10 +1,10 @@
 #ifndef _IPT_COMMENT_H
 #define _IPT_COMMENT_H
 
-#define IPT_MAX_COMMENT_LEN 256
+#include <linux/netfilter/xt_comment.h>
 
-struct ipt_comment_info {
-	unsigned char comment[IPT_MAX_COMMENT_LEN];
-};
+#define IPT_MAX_COMMENT_LEN XT_MAX_COMMENT_LEN
+
+#define ipt_comment_info xt_comment_info
 
 #endif /* _IPT_COMMENT_H */

include/linux/netfilter_ipv4/ipt_connbytes.h

@@ -1,25 +1,18 @@
 #ifndef _IPT_CONNBYTES_H
 #define _IPT_CONNBYTES_H
 
-enum ipt_connbytes_what {
-	IPT_CONNBYTES_PKTS,
-	IPT_CONNBYTES_BYTES,
-	IPT_CONNBYTES_AVGPKT,
-};
+#include <net/netfilter/xt_connbytes.h>
+#define ipt_connbytes_what xt_connbytes_what
 
-enum ipt_connbytes_direction {
-	IPT_CONNBYTES_DIR_ORIGINAL,
-	IPT_CONNBYTES_DIR_REPLY,
-	IPT_CONNBYTES_DIR_BOTH,
-};
+#define IPT_CONNBYTES_PKTS	XT_CONNBYTES_PACKETS
+#define IPT_CONNBYTES_BYTES	XT_CONNBYTES_BYTES
+#define IPT_CONNBYTES_AVGPKT	XT_CONNBYTES_AVGPKT
+
+#define ipt_connbytes_direction 	xt_connbytes_direction
+#define IPT_CONNBYTES_DIR_ORIGINAL 	XT_CONNBYTES_DIR_ORIGINAL
+#define IPT_CONNBYTES_DIR_REPLY 	XT_CONNBYTES_DIR_REPLY
+#define IPT_CONNBYTES_DIR_BOTH		XT_CONNBYTES_DIR_BOTH
+
+#define ipt_connbytes_info xt_connbytes_info
 
-struct ipt_connbytes_info
-{
-	struct {
-		aligned_u64 from;	/* count to be matched */
-		aligned_u64 to;		/* count to be matched */
-	} count;
-	u_int8_t what;		/* ipt_connbytes_what */
-	u_int8_t direction;	/* ipt_connbytes_direction */
-};
 #endif

include/linux/netfilter_ipv4/ipt_connmark.h

@@ -1,18 +1,7 @@
 #ifndef _IPT_CONNMARK_H
 #define _IPT_CONNMARK_H
 
-/* Copyright (C) 2002,2004 MARA Systems AB <http://www.marasystems.com>
- * by Henrik Nordstrom <hno@marasystems.com>
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- */
-
-struct ipt_connmark_info {
-	unsigned long mark, mask;
-	u_int8_t invert;
-};
+#include <linux/netfilter/xt_connmark.h>
+#define ipt_connmark_info xt_connmark_info
 
 #endif /*_IPT_CONNMARK_H*/

include/linux/netfilter_ipv4/ipt_conntrack.h

@@ -5,56 +5,24 @@
 #ifndef _IPT_CONNTRACK_H
 #define _IPT_CONNTRACK_H
 
-#define IPT_CONNTRACK_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
-#define IPT_CONNTRACK_STATE_INVALID (1 << 0)
+#include <linux/netfilter/xt_conntrack.h>
 
-#define IPT_CONNTRACK_STATE_SNAT (1 << (IP_CT_NUMBER + 1))
-#define IPT_CONNTRACK_STATE_DNAT (1 << (IP_CT_NUMBER + 2))
-#define IPT_CONNTRACK_STATE_UNTRACKED (1 << (IP_CT_NUMBER + 3))
+#define IPT_CONNTRACK_STATE_BIT(ctinfo) XT_CONNTRACK_STATE_BIT(ctinfo)
+#define IPT_CONNTRACK_STATE_INVALID 	XT_CONNTRACK_STATE_INVALID
 
-/* flags, invflags: */
-#define IPT_CONNTRACK_STATE	0x01
-#define IPT_CONNTRACK_PROTO	0x02
-#define IPT_CONNTRACK_ORIGSRC	0x04
-#define IPT_CONNTRACK_ORIGDST	0x08
-#define IPT_CONNTRACK_REPLSRC	0x10
-#define IPT_CONNTRACK_REPLDST	0x20
-#define IPT_CONNTRACK_STATUS	0x40
-#define IPT_CONNTRACK_EXPIRES	0x80
-
-/* This is exposed to userspace, so remains frozen in time. */
-struct ip_conntrack_old_tuple
-{
-	struct {
-		__u32 ip;
-		union {
-			__u16 all;
-		} u;
-	} src;
-
-	struct {
-		__u32 ip;
-		union {
-			__u16 all;
-		} u;
-
-		/* The protocol. */
-		u16 protonum;
-	} dst;
-};
+#define IPT_CONNTRACK_STATE_SNAT 	XT_CONNTRACK_STATE_SNAT
+#define IPT_CONNTRACK_STATE_DNAT	XT_CONNTRACK_STATE_DNAT
+#define IPT_CONNTRACK_STATE_UNTRACKED	XT_CONNTRACK_STATE_UNTRACKED
 
-struct ipt_conntrack_info
-{
-	unsigned int statemask, statusmask;
-
-	struct ip_conntrack_old_tuple tuple[IP_CT_DIR_MAX];
-	struct in_addr sipmsk[IP_CT_DIR_MAX], dipmsk[IP_CT_DIR_MAX];
-
-	unsigned long expires_min, expires_max;
-
-	/* Flags word */
-	u_int8_t flags;
-	/* Inverse flags */
-	u_int8_t invflags;
-};
+/* flags, invflags: */
+#define IPT_CONNTRACK_STATE		XT_CONNTRACK_STATE
+#define IPT_CONNTRACK_PROTO		XT_CONNTRACK_PROTO
+#define IPT_CONNTRACK_ORIGSRC		XT_CONNTRACK_ORIGSRC
+#define IPT_CONNTRACK_ORIGDST		XT_CONNTRACK_ORIGDST
+#define IPT_CONNTRACK_REPLSRC		XT_CONNTRACK_REPLSRC
+#define IPT_CONNTRACK_REPLDST		XT_CONNTRACK_REPLDST
+#define IPT_CONNTRACK_STATUS		XT_CONNTRACK_STATUS
+#define IPT_CONNTRACK_EXPIRES		XT_CONNTRACK_EXPIRES
+
+#define ipt_conntrack_info		xt_conntrack_info
 #endif /*_IPT_CONNTRACK_H*/

include/linux/netfilter_ipv4/ipt_dccp.h

@@ -1,23 +1,15 @@
 #ifndef _IPT_DCCP_H_
 #define _IPT_DCCP_H_
 
-#define IPT_DCCP_SRC_PORTS	        0x01
-#define IPT_DCCP_DEST_PORTS	        0x02
-#define IPT_DCCP_TYPE			0x04
-#define IPT_DCCP_OPTION			0x08
+#include <linux/netfilter/xt_dccp.h>
+#define IPT_DCCP_SRC_PORTS	XT_DCCP_SRC_PORTS
+#define IPT_DCCP_DEST_PORTS	XT_DCCP_DEST_PORTS
+#define IPT_DCCP_TYPE		XT_DCCP_TYPE
+#define IPT_DCCP_OPTION		XT_DCCP_OPTION
 
-#define IPT_DCCP_VALID_FLAGS		0x0f
+#define IPT_DCCP_VALID_FLAGS 	XT_DCCP_VALID_FLAGS
 
-struct ipt_dccp_info {
-	u_int16_t dpts[2];  /* Min, Max */
-	u_int16_t spts[2];  /* Min, Max */
-
-	u_int16_t flags;
-	u_int16_t invflags;
-
-	u_int16_t typemask;
-	u_int8_t option;
-};
+#define ipt_dccp_info xt_dccp_info
 
 #endif /* _IPT_DCCP_H_ */
 

include/linux/netfilter_ipv4/ipt_helper.h

@@ -1,8 +1,7 @@
 #ifndef _IPT_HELPER_H
 #define _IPT_HELPER_H
 
-struct ipt_helper_info {
-	int invert;
-	char name[30];
-};
+#include <linux/netfilter/xt_helper.h>
+#define ipt_helper_info xt_helper_info
+
 #endif /* _IPT_HELPER_H */

include/linux/netfilter_ipv4/ipt_length.h

@@ -1,9 +1,7 @@
 #ifndef _IPT_LENGTH_H
 #define _IPT_LENGTH_H
 
-struct ipt_length_info {
-    u_int16_t	min, max;
-    u_int8_t	invert;
-};
+#include <linux/netfilter/xt_length.h>
+#define ipt_length_info xt_length_info
 
 #endif /*_IPT_LENGTH_H*/

include/linux/netfilter_ipv4/ipt_limit.h

@@ -1,21 +1,8 @@
 #ifndef _IPT_RATE_H
 #define _IPT_RATE_H
 
-/* timings are in milliseconds. */
-#define IPT_LIMIT_SCALE 10000
+#include <linux/netfilter/xt_limit.h>
+#define IPT_LIMIT_SCALE XT_LIMIT_SCALE
+#define ipt_rateinfo xt_rateinfo
 
-/* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
-   seconds, or one every 59 hours. */
-struct ipt_rateinfo {
-	u_int32_t avg;    /* Average secs between packets * scale */
-	u_int32_t burst;  /* Period multiplier for upper limit. */
-
-	/* Used internally by the kernel */
-	unsigned long prev;
-	u_int32_t credit;
-	u_int32_t credit_cap, cost;
-
-	/* Ugly, ugly fucker. */
-	struct ipt_rateinfo *master;
-};
 #endif /*_IPT_RATE_H*/

include/linux/netfilter_ipv4/ipt_mac.h

@@ -1,8 +1,7 @@
 #ifndef _IPT_MAC_H
 #define _IPT_MAC_H
 
-struct ipt_mac_info {
-    unsigned char srcaddr[ETH_ALEN];
-    int invert;
-};
+#include <linux/netfilter/xt_mac.h>
+#define ipt_mac_info xt_mac_info
+
 #endif /*_IPT_MAC_H*/

include/linux/netfilter_ipv4/ipt_mark.h

@@ -1,9 +1,9 @@
 #ifndef _IPT_MARK_H
 #define _IPT_MARK_H
 
-struct ipt_mark_info {
-    unsigned long mark, mask;
-    u_int8_t invert;
-};
+/* Backwards compatibility for old userspace */
+#include <linux/netfilter/xt_mark.h>
+
+#define ipt_mark_info xt_mark_info
 
 #endif /*_IPT_MARK_H*/

include/linux/netfilter_ipv4/ipt_physdev.h

@@ -1,24 +1,17 @@
 #ifndef _IPT_PHYSDEV_H
 #define _IPT_PHYSDEV_H
 
-#ifdef __KERNEL__
-#include <linux/if.h>
-#endif
+/* Backwards compatibility for old userspace */
 
-#define IPT_PHYSDEV_OP_IN		0x01
-#define IPT_PHYSDEV_OP_OUT		0x02
-#define IPT_PHYSDEV_OP_BRIDGED		0x04
-#define IPT_PHYSDEV_OP_ISIN		0x08
-#define IPT_PHYSDEV_OP_ISOUT		0x10
-#define IPT_PHYSDEV_OP_MASK		(0x20 - 1)
+#include <linux/netfilter/xt_physdev.h>
 
-struct ipt_physdev_info {
-	char physindev[IFNAMSIZ];
-	char in_mask[IFNAMSIZ];
-	char physoutdev[IFNAMSIZ];
-	char out_mask[IFNAMSIZ];
-	u_int8_t invert;
-	u_int8_t bitmask;
-};
+#define IPT_PHYSDEV_OP_IN		XT_PHYSDEV_OP_IN
+#define IPT_PHYSDEV_OP_OUT		XT_PHYSDEV_OP_OUT
+#define IPT_PHYSDEV_OP_BRIDGED		XT_PHYSDEV_OP_BRIDGED
+#define IPT_PHYSDEV_OP_ISIN		XT_PHYSDEV_OP_ISIN
+#define IPT_PHYSDEV_OP_ISOUT		XT_PHYSDEV_OP_ISOUT
+#define IPT_PHYSDEV_OP_MASK		XT_PHYSDEV_OP_MASK
+
+#define ipt_physdev_info xt_physdev_info
 
 #endif /*_IPT_PHYSDEV_H*/

include/linux/netfilter_ipv4/ipt_pkttype.h

@@ -1,8 +1,7 @@
 #ifndef _IPT_PKTTYPE_H
 #define _IPT_PKTTYPE_H
 
-struct ipt_pkttype_info {
-	int	pkttype;
-	int	invert;
-};
+#include <linux/netfilter/xt_pkttype.h>
+#define ipt_pkttype_info xt_pkttype_info
+
 #endif /*_IPT_PKTTYPE_H*/

include/linux/netfilter_ipv4/ipt_realm.h

@@ -1,10 +1,7 @@
 #ifndef _IPT_REALM_H
 #define _IPT_REALM_H
 
-struct ipt_realm_info {
-	u_int32_t id;
-	u_int32_t mask;
-	u_int8_t invert;
-};
+#include <linux/netfilter/xt_realm.h>
+#define ipt_realm_info xt_realm_info
 
 #endif /* _IPT_REALM_H */

include/linux/netfilter_ipv4/ipt_state.h

@@ -1,13 +1,15 @@
 #ifndef _IPT_STATE_H
 #define _IPT_STATE_H
 
-#define IPT_STATE_BIT(ctinfo) (1 << ((ctinfo)%IP_CT_IS_REPLY+1))
-#define IPT_STATE_INVALID (1 << 0)
+/* Backwards compatibility for old userspace */
 
-#define IPT_STATE_UNTRACKED (1 << (IP_CT_NUMBER + 1))
+#include <linux/netfilter/xt_state.h>
+
+#define IPT_STATE_BIT		XT_STATE_BIT
+#define IPT_STATE_INVALID	XT_STATE_INVALID
+
+#define IPT_STATE_UNTRACKED	XT_STATE_UNTRACKED
+
+#define ipt_state_info		xt_state_info
 
-struct ipt_state_info
-{
-	unsigned int statemask;
-};
 #endif /*_IPT_STATE_H*/

include/linux/netfilter_ipv4/ipt_string.h

@@ -1,18 +1,10 @@
 #ifndef _IPT_STRING_H
 #define _IPT_STRING_H
 
-#define IPT_STRING_MAX_PATTERN_SIZE 128
-#define IPT_STRING_MAX_ALGO_NAME_SIZE 16
+#include <linux/netfilter/xt_string.h>
 
-struct ipt_string_info
-{
-	u_int16_t from_offset;
-	u_int16_t to_offset;
-	char	  algo[IPT_STRING_MAX_ALGO_NAME_SIZE];
-	char 	  pattern[IPT_STRING_MAX_PATTERN_SIZE];
-	u_int8_t  patlen;
-	u_int8_t  invert;
-	struct ts_config __attribute__((aligned(8))) *config;
-};
+#define IPT_STRING_MAX_PATTERN_SIZE XT_STRING_MAX_PATTERN_SIZE
+#define IPT_STRING_MAX_ALGO_NAME_SIZE XT_STRING_MAX_ALGO_NAME_SIZE
+#define ipt_string_info xt_string_info
 
 #endif /*_IPT_STRING_H*/

include/linux/netfilter_ipv4/ipt_tcpmss.h

@@ -1,9 +1,7 @@
 #ifndef _IPT_TCPMSS_MATCH_H
 #define _IPT_TCPMSS_MATCH_H
 
-struct ipt_tcpmss_match_info {
-    u_int16_t mss_min, mss_max;
-    u_int8_t invert;
-};
+#include <linux/netfilter/xt_tcpmss.h>
+#define ipt_tcpmss_match_info xt_tcpmss_match_info
 
 #endif /*_IPT_TCPMSS_MATCH_H*/

include/linux/netfilter_ipv6/ip6_tables.h

@@ -25,8 +25,15 @@
 #include <linux/compiler.h>
 #include <linux/netfilter_ipv6.h>
 
-#define IP6T_FUNCTION_MAXNAMELEN 30
-#define IP6T_TABLE_MAXNAMELEN 32
+#include <linux/netfilter/x_tables.h>
+
+#define IP6T_FUNCTION_MAXNAMELEN XT_FUNCTION_MAXNAMELEN
+#define IP6T_TABLE_MAXNAMELEN XT_TABLE_MAXNAMELEN
+
+#define ip6t_match xt_match
+#define ip6t_target xt_target
+#define ip6t_table xt_table
+#define ip6t_get_revision xt_get_revision
 
 /* Yes, Virginia, you have to zero the padding. */
 struct ip6t_ip6 {
@@ -104,10 +111,7 @@ struct ip6t_standard_target
 	int verdict;
 };
 
-struct ip6t_counters
-{
-	u_int64_t pcnt, bcnt;			/* Packet and byte counters */
-};
+#define ip6t_counters	xt_counters
 
 /* Values for "flag" field in struct ip6t_ip6 (general ip6 structure). */
 #define IP6T_F_PROTO		0x01	/* Set if rule cares about upper 
@@ -123,7 +127,7 @@ struct ip6t_counters
 #define IP6T_INV_SRCIP		0x08	/* Invert the sense of SRC IP. */
 #define IP6T_INV_DSTIP		0x10	/* Invert the sense of DST OP. */
 #define IP6T_INV_FRAG		0x20	/* Invert the sense of FRAG. */
-#define IP6T_INV_PROTO		0x40	/* Invert the sense of PROTO. */
+#define IP6T_INV_PROTO		XT_INV_PROTO
 #define IP6T_INV_MASK		0x7F	/* All possible flag bits mask. */
 
 /* This structure defines each of the firewall rules.  Consists of 3
@@ -145,7 +149,7 @@ struct ip6t_entry
 	unsigned int comefrom;
 
 	/* Packet and byte counters. */
-	struct ip6t_counters counters;
+	struct xt_counters counters;
 
 	/* The matches (if any), then the target. */
 	unsigned char elems[0];
@@ -155,54 +159,41 @@ struct ip6t_entry
  * New IP firewall options for [gs]etsockopt at the RAW IP level.
  * Unlike BSD Linux inherits IP options so you don't have to use
  * a raw socket for this. Instead we check rights in the calls. */
-#define IP6T_BASE_CTL			64	/* base for firewall socket options */
+#define IP6T_BASE_CTL			XT_BASE_CTL
 
-#define IP6T_SO_SET_REPLACE		(IP6T_BASE_CTL)
-#define IP6T_SO_SET_ADD_COUNTERS	(IP6T_BASE_CTL + 1)
-#define IP6T_SO_SET_MAX			IP6T_SO_SET_ADD_COUNTERS
+#define IP6T_SO_SET_REPLACE		XT_SO_SET_REPLACE
+#define IP6T_SO_SET_ADD_COUNTERS	XT_SO_SET_ADD_COUNTERS
+#define IP6T_SO_SET_MAX			XT_SO_SET_MAX
 
-#define IP6T_SO_GET_INFO		(IP6T_BASE_CTL)
-#define IP6T_SO_GET_ENTRIES		(IP6T_BASE_CTL + 1)
-#define	IP6T_SO_GET_REVISION_MATCH	(IP6T_BASE_CTL + 2)
-#define	IP6T_SO_GET_REVISION_TARGET	(IP6T_BASE_CTL + 3)
-#define IP6T_SO_GET_MAX			IP6T_SO_GET_REVISION_TARGET
+#define IP6T_SO_GET_INFO		XT_SO_GET_INFO
+#define IP6T_SO_GET_ENTRIES		XT_SO_GET_ENTRIES
+#define	IP6T_SO_GET_REVISION_MATCH	XT_SO_GET_REVISION_MATCH
+#define	IP6T_SO_GET_REVISION_TARGET	XT_SO_GET_REVISION_TARGET
+#define IP6T_SO_GET_MAX			XT_SO_GET_REVISION_TARGET
 
 /* CONTINUE verdict for targets */
-#define IP6T_CONTINUE 0xFFFFFFFF
+#define IP6T_CONTINUE XT_CONTINUE
 
 /* For standard target */
-#define IP6T_RETURN (-NF_REPEAT - 1)
+#define IP6T_RETURN XT_RETURN
 
-/* TCP matching stuff */
-struct ip6t_tcp
-{
-	u_int16_t spts[2];			/* Source port range. */
-	u_int16_t dpts[2];			/* Destination port range. */
-	u_int8_t option;			/* TCP Option iff non-zero*/
-	u_int8_t flg_mask;			/* TCP flags mask byte */
-	u_int8_t flg_cmp;			/* TCP flags compare byte */
-	u_int8_t invflags;			/* Inverse flags */
-};
+/* TCP/UDP matching stuff */
+#include <linux/netfilter/xt_tcpudp.h>
+
+#define ip6t_tcp xt_tcp
+#define ip6t_udp xt_udp
 
 /* Values for "inv" field in struct ipt_tcp. */
-#define IP6T_TCP_INV_SRCPT	0x01	/* Invert the sense of source ports. */
-#define IP6T_TCP_INV_DSTPT	0x02	/* Invert the sense of dest ports. */
-#define IP6T_TCP_INV_FLAGS	0x04	/* Invert the sense of TCP flags. */
-#define IP6T_TCP_INV_OPTION	0x08	/* Invert the sense of option test. */
-#define IP6T_TCP_INV_MASK	0x0F	/* All possible flags. */
-
-/* UDP matching stuff */
-struct ip6t_udp
-{
-	u_int16_t spts[2];			/* Source port range. */
-	u_int16_t dpts[2];			/* Destination port range. */
-	u_int8_t invflags;			/* Inverse flags */
-};
+#define IP6T_TCP_INV_SRCPT	XT_TCP_INV_SRCPT
+#define IP6T_TCP_INV_DSTPT	XT_TCP_INV_DSTPT
+#define IP6T_TCP_INV_FLAGS	XT_TCP_INV_FLAGS
+#define IP6T_TCP_INV_OPTION	XT_TCP_INV_OPTION
+#define IP6T_TCP_INV_MASK	XT_TCP_INV_MASK
 
 /* Values for "invflags" field in struct ipt_udp. */
-#define IP6T_UDP_INV_SRCPT	0x01	/* Invert the sense of source ports. */
-#define IP6T_UDP_INV_DSTPT	0x02	/* Invert the sense of dest ports. */
-#define IP6T_UDP_INV_MASK	0x03	/* All possible flags. */
+#define IP6T_UDP_INV_SRCPT	XT_UDP_INV_SRCPT
+#define IP6T_UDP_INV_DSTPT	XT_UDP_INV_DSTPT
+#define IP6T_UDP_INV_MASK	XT_UDP_INV_MASK
 
 /* ICMP matching stuff */
 struct ip6t_icmp
@@ -264,23 +255,14 @@ struct ip6t_replace
 	/* Number of counters (must be equal to current number of entries). */
 	unsigned int num_counters;
 	/* The old entries' counters. */
-	struct ip6t_counters __user *counters;
+	struct xt_counters __user *counters;
 
 	/* The entries (hang off end: not really an array). */
 	struct ip6t_entry entries[0];
 };
 
 /* The argument to IP6T_SO_ADD_COUNTERS. */
-struct ip6t_counters_info
-{
-	/* Which table. */
-	char name[IP6T_TABLE_MAXNAMELEN];
-
-	unsigned int num_counters;
-
-	/* The counters (actually `number' of these). */
-	struct ip6t_counters counters[0];
-};
+#define ip6t_counters_info xt_counters_info
 
 /* The argument to IP6T_SO_GET_ENTRIES. */
 struct ip6t_get_entries
@@ -295,19 +277,10 @@ struct ip6t_get_entries
 	struct ip6t_entry entrytable[0];
 };
 
-/* The argument to IP6T_SO_GET_REVISION_*.  Returns highest revision
- * kernel supports, if >= revision. */
-struct ip6t_get_revision
-{
-	char name[IP6T_FUNCTION_MAXNAMELEN-1];
-
-	u_int8_t revision;
-};
-
 /* Standard return verdict, or do jump. */
-#define IP6T_STANDARD_TARGET ""
+#define IP6T_STANDARD_TARGET XT_STANDARD_TARGET
 /* Error verdict. */
-#define IP6T_ERROR_TARGET "ERROR"
+#define IP6T_ERROR_TARGET XT_ERROR_TARGET
 
 /* Helper functions */
 static __inline__ struct ip6t_entry_target *
@@ -361,104 +334,11 @@ ip6t_get_target(struct ip6t_entry *e)
 #include <linux/init.h>
 extern void ip6t_init(void) __init;
 
-struct ip6t_match
-{
-	struct list_head list;
-
-	const char name[IP6T_FUNCTION_MAXNAMELEN-1];
-
-	u_int8_t revision;
-
-	/* Return true or false: return FALSE and set *hotdrop = 1 to
-           force immediate packet drop. */
-	/* Arguments changed since 2.6.9, as this must now handle
-	   non-linear skb, using skb_header_pointer and
-	   skb_ip_make_writable. */
-	int (*match)(const struct sk_buff *skb,
-		     const struct net_device *in,
-		     const struct net_device *out,
-		     const void *matchinfo,
-		     int offset,
-		     unsigned int protoff,
-		     int *hotdrop);
-
-	/* Called when user tries to insert an entry of this type. */
-	/* Should return true or false. */
-	int (*checkentry)(const char *tablename,
-			  const struct ip6t_ip6 *ip,
-			  void *matchinfo,
-			  unsigned int matchinfosize,
-			  unsigned int hook_mask);
-
-	/* Called when entry of this type deleted. */
-	void (*destroy)(void *matchinfo, unsigned int matchinfosize);
-
-	/* Set this to THIS_MODULE if you are a module, otherwise NULL */
-	struct module *me;
-};
-
-/* Registration hooks for targets. */
-struct ip6t_target
-{
-	struct list_head list;
-
-	const char name[IP6T_FUNCTION_MAXNAMELEN-1];
-
-	u_int8_t revision;
-
-	/* Returns verdict. Argument order changed since 2.6.9, as this
-	   must now handle non-linear skbs, using skb_copy_bits and
-	   skb_ip_make_writable. */
-	unsigned int (*target)(struct sk_buff **pskb,
-			       const struct net_device *in,
-			       const struct net_device *out,
-			       unsigned int hooknum,
-			       const void *targinfo,
-			       void *userdata);
-
-	/* Called when user tries to insert an entry of this type:
-           hook_mask is a bitmask of hooks from which it can be
-           called. */
-	/* Should return true or false. */
-	int (*checkentry)(const char *tablename,
-			  const struct ip6t_entry *e,
-			  void *targinfo,
-			  unsigned int targinfosize,
-			  unsigned int hook_mask);
-
-	/* Called when entry of this type deleted. */
-	void (*destroy)(void *targinfo, unsigned int targinfosize);
-
-	/* Set this to THIS_MODULE if you are a module, otherwise NULL */
-	struct module *me;
-};
-
-extern int ip6t_register_target(struct ip6t_target *target);
-extern void ip6t_unregister_target(struct ip6t_target *target);
-
-extern int ip6t_register_match(struct ip6t_match *match);
-extern void ip6t_unregister_match(struct ip6t_match *match);
+#define ip6t_register_target(tgt) xt_register_target(AF_INET6, tgt)
+#define ip6t_unregister_target(tgt) xt_unregister_target(AF_INET6, tgt)
 
-/* Furniture shopping... */
-struct ip6t_table
-{
-	struct list_head list;
-
-	/* A unique name... */
-	char name[IP6T_TABLE_MAXNAMELEN];
-
-	/* What hooks you will enter on */
-	unsigned int valid_hooks;
-
-	/* Lock for the curtain */
-	rwlock_t lock;
-
-	/* Man behind the curtain... */
-	struct ip6t_table_info *private;
-
-	/* Set this to THIS_MODULE if you are a module, otherwise NULL */
-	struct module *me;
-};
+#define ip6t_register_match(match) xt_register_match(AF_INET6, match)
+#define ip6t_unregister_match(match) xt_unregister_match(AF_INET6, match)
 
 extern int ip6t_register_table(struct ip6t_table *table,
 			       const struct ip6t_replace *repl);

include/linux/netfilter_ipv6/ip6t_MARK.h

@@ -1,8 +1,9 @@
 #ifndef _IP6T_MARK_H_target
 #define _IP6T_MARK_H_target
 
-struct ip6t_mark_target_info {
-	unsigned long mark;
-};
+/* Backwards compatibility for old userspace */
+#include <linux/netfilter/xt_MARK.h>
 
-#endif /*_IPT_MARK_H_target*/
+#define ip6t_mark_target_info xt_mark_target_info
+
+#endif /*_IP6T_MARK_H_target*/

include/linux/netfilter_ipv6/ip6t_length.h

@@ -1,10 +1,8 @@
 #ifndef _IP6T_LENGTH_H
 #define _IP6T_LENGTH_H
 
-struct ip6t_length_info {
-	u_int16_t  min, max;
-	u_int8_t   invert;
-};
+#include <linux/netfilter/xt_length.h>
+#define ip6t_length_info xt_length_info
 
 #endif /*_IP6T_LENGTH_H*/
 	

include/linux/netfilter_ipv6/ip6t_limit.h

@@ -1,21 +1,8 @@
 #ifndef _IP6T_RATE_H
 #define _IP6T_RATE_H
 
-/* timings are in milliseconds. */
-#define IP6T_LIMIT_SCALE 10000
+#include <linux/netfilter/xt_limit.h>
+#define IP6T_LIMIT_SCALE XT_LIMIT_SCALE
+#define ip6t_rateinfo xt_rateinfo
 
-/* 1/10,000 sec period => max of 10,000/sec.  Min rate is then 429490
-   seconds, or one every 59 hours. */
-struct ip6t_rateinfo {
-	u_int32_t avg;    /* Average secs between packets * scale */
-	u_int32_t burst;  /* Period multiplier for upper limit. */
-
-	/* Used internally by the kernel */
-	unsigned long prev;
-	u_int32_t credit;
-	u_int32_t credit_cap, cost;
-
-	/* Ugly, ugly fucker. */
-	struct ip6t_rateinfo *master;
-};
-#endif /*_IPT_RATE_H*/
+#endif /*_IP6T_RATE_H*/

include/linux/netfilter_ipv6/ip6t_mac.h

@@ -1,8 +1,7 @@
 #ifndef _IP6T_MAC_H
 #define _IP6T_MAC_H
 
-struct ip6t_mac_info {
-    unsigned char srcaddr[ETH_ALEN];
-    int invert;
-};
-#endif /*_IPT_MAC_H*/
+#include <linux/netfilter/xt_mac.h>
+#define ip6t_mac_info xt_mac_info
+
+#endif /*_IP6T_MAC_H*/

include/linux/netfilter_ipv6/ip6t_mark.h

@@ -1,9 +1,9 @@
 #ifndef _IP6T_MARK_H
 #define _IP6T_MARK_H
 
-struct ip6t_mark_info {
-    unsigned long mark, mask;
-    u_int8_t invert;
-};
+/* Backwards compatibility for old userspace */
+#include <linux/netfilter/xt_mark.h>
+
+#define ip6t_mark_info xt_mark_info
 
 #endif /*_IPT_MARK_H*/

include/linux/netfilter_ipv6/ip6t_physdev.h

@@ -1,24 +1,17 @@
 #ifndef _IP6T_PHYSDEV_H
 #define _IP6T_PHYSDEV_H
 
-#ifdef __KERNEL__
-#include <linux/if.h>
-#endif
+/* Backwards compatibility for old userspace */
 
-#define IP6T_PHYSDEV_OP_IN		0x01
-#define IP6T_PHYSDEV_OP_OUT		0x02
-#define IP6T_PHYSDEV_OP_BRIDGED		0x04
-#define IP6T_PHYSDEV_OP_ISIN		0x08
-#define IP6T_PHYSDEV_OP_ISOUT		0x10
-#define IP6T_PHYSDEV_OP_MASK		(0x20 - 1)
+#include <linux/netfilter/xt_physdev.h>
 
-struct ip6t_physdev_info {
-	char physindev[IFNAMSIZ];
-	char in_mask[IFNAMSIZ];
-	char physoutdev[IFNAMSIZ];
-	char out_mask[IFNAMSIZ];
-	u_int8_t invert;
-	u_int8_t bitmask;
-};
+#define IP6T_PHYSDEV_OP_IN		XT_PHYSDEV_OP_IN
+#define IP6T_PHYSDEV_OP_OUT		XT_PHYSDEV_OP_OUT
+#define IP6T_PHYSDEV_OP_BRIDGED		XT_PHYSDEV_OP_BRIDGED
+#define IP6T_PHYSDEV_OP_ISIN		XT_PHYSDEV_OP_ISIN
+#define IP6T_PHYSDEV_OP_ISOUT		XT_PHYSDEV_OP_ISOUT
+#define IP6T_PHYSDEV_OP_MASK		XT_PHYSDEV_OP_MASK
+
+#define ip6t_physdev_info xt_physdev_info
 
 #endif /*_IP6T_PHYSDEV_H*/

include/net/netfilter/ipv4/nf_conntrack_ipv4.h

@@ -37,7 +37,4 @@ struct nf_conntrack_ipv4 {
 struct sk_buff *
 nf_ct_ipv4_ct_gather_frags(struct sk_buff *skb);
 
-/* call to create an explicit dependency on nf_conntrack_l3proto_ipv4. */
-extern void need_ip_conntrack(void);
-
 #endif /*_NF_CONNTRACK_IPV4_H*/

include/net/netfilter/nf_conntrack.h

@@ -221,9 +221,6 @@ extern void nf_ct_helper_put(struct nf_conntrack_helper *helper);
 extern struct nf_conntrack_helper *
 __nf_conntrack_helper_find_byname(const char *name);
 
-/* call to create an explicit dependency on nf_conntrack. */
-extern void need_nf_conntrack(void);
-
 extern int nf_ct_invert_tuplepr(struct nf_conntrack_tuple *inverse,
 				const struct nf_conntrack_tuple *orig);
 

net/bridge/netfilter/ebt_log.c

@@ -15,6 +15,7 @@
 #include <linux/netfilter.h>
 #include <linux/module.h>
 #include <linux/ip.h>
+#include <linux/in.h>
 #include <linux/if_arp.h>
 #include <linux/spinlock.h>
 

net/ipv4/netfilter/Kconfig

@@ -182,6 +182,7 @@ config IP_NF_QUEUE
 
 config IP_NF_IPTABLES
 	tristate "IP tables support (required for filtering/masq/NAT)"
+	depends on NETFILTER_XTABLES
 	help
 	  iptables is a general, extensible packet identification framework.
 	  The packet filtering and full NAT (masquerading, port forwarding,
@@ -191,16 +192,6 @@ config IP_NF_IPTABLES
 	  To compile it as a module, choose M here.  If unsure, say N.
 
 # The matches.
-config IP_NF_MATCH_LIMIT
-	tristate "limit match support"
-	depends on IP_NF_IPTABLES
-	help
-	  limit matching allows you to control the rate at which a rule can be
-	  matched: mainly useful in combination with the LOG target ("LOG
-	  target support", below) and to avoid some Denial of Service attacks.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP_NF_MATCH_IPRANGE
 	tristate "IP range match support"
 	depends on IP_NF_IPTABLES
@@ -210,37 +201,6 @@ config IP_NF_MATCH_IPRANGE
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP_NF_MATCH_MAC
-	tristate "MAC address match support"
-	depends on IP_NF_IPTABLES
-	help
-	  MAC matching allows you to match packets based on the source
-	  Ethernet address of the packet.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
-config IP_NF_MATCH_PKTTYPE
-	tristate "Packet type match support"
-	depends on IP_NF_IPTABLES
-	help
-	  Packet type matching allows you to match a packet by
-	  its "class", eg. BROADCAST, MULTICAST, ...
-
-	  Typical usage:
-	  iptables -A INPUT -m pkttype --pkt-type broadcast -j LOG
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
-config IP_NF_MATCH_MARK
-	tristate "netfilter MARK match support"
-	depends on IP_NF_IPTABLES
-	help
-	  Netfilter mark matching allows you to match packets based on the
-	  `nfmark' value in the packet.  This can be set by the MARK target
-	  (see below).
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP_NF_MATCH_MULTIPORT
 	tristate "Multiple port match support"
 	depends on IP_NF_IPTABLES
@@ -301,15 +261,6 @@ config IP_NF_MATCH_AH_ESP
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP_NF_MATCH_LENGTH
-	tristate "LENGTH match support"
-	depends on IP_NF_IPTABLES
-	help
-	  This option allows you to match the length of a packet against a
-	  specific value or range of values.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP_NF_MATCH_TTL
 	tristate "TTL match support"
 	depends on IP_NF_IPTABLES
@@ -319,50 +270,6 @@ config IP_NF_MATCH_TTL
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP_NF_MATCH_TCPMSS
-	tristate "tcpmss match support"
-	depends on IP_NF_IPTABLES
-	help
-	  This option adds a `tcpmss' match, which allows you to examine the
-	  MSS value of TCP SYN packets, which control the maximum packet size
-	  for that connection.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
-config IP_NF_MATCH_HELPER
-	tristate "Helper match support"
-	depends on IP_NF_IPTABLES
-	depends on IP_NF_CONNTRACK || NF_CONNTRACK_IPV4
-	help
-	  Helper matching allows you to match packets in dynamic connections
-	  tracked by a conntrack-helper, ie. ip_conntrack_ftp
-
-	  To compile it as a module, choose M here.  If unsure, say Y.
-
-config IP_NF_MATCH_STATE
-	tristate "Connection state match support"
-	depends on IP_NF_IPTABLES
-	depends on IP_NF_CONNTRACK || NF_CONNTRACK_IPV4
-	help
-	  Connection state matching allows you to match packets based on their
-	  relationship to a tracked connection (ie. previous packets).  This
-	  is a powerful tool for packet classification.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
-config IP_NF_MATCH_CONNTRACK
-	tristate "Connection tracking match support"
-	depends on IP_NF_IPTABLES
-	depends on IP_NF_CONNTRACK || NF_CONNTRACK_IPV4
-	help
-	  This is a general conntrack match module, a superset of the state match.
-
-	  It allows matching on additional conntrack information, which is
-	  useful in complex configurations, such as NAT gateways with multiple
-	  internet links or tunnels.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP_NF_MATCH_OWNER
 	tristate "Owner match support"
 	depends on IP_NF_IPTABLES
@@ -372,15 +279,6 @@ config IP_NF_MATCH_OWNER
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP_NF_MATCH_PHYSDEV
-	tristate "Physdev match support"
-	depends on IP_NF_IPTABLES && BRIDGE_NETFILTER
-	help
-	  Physdev packet matching matches against the physical bridge ports
-	  the IP packet arrived on or will leave by.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP_NF_MATCH_ADDRTYPE
 	tristate  'address type match support'
 	depends on IP_NF_IPTABLES
@@ -391,75 +289,6 @@ config IP_NF_MATCH_ADDRTYPE
 	  If you want to compile it as a module, say M here and read
 	  <file:Documentation/modules.txt>.  If unsure, say `N'.
 
-config IP_NF_MATCH_REALM
-	tristate  'realm match support'
-	depends on IP_NF_IPTABLES
-	select NET_CLS_ROUTE
-	help
-	  This option adds a `realm' match, which allows you to use the realm
-	  key from the routing subsystem inside iptables.
-	
-	  This match pretty much resembles the CONFIG_NET_CLS_ROUTE4 option 
-	  in tc world.
-	
-	  If you want to compile it as a module, say M here and read
-	  <file:Documentation/modules.txt>.  If unsure, say `N'.
-
-config IP_NF_MATCH_SCTP
-	tristate  'SCTP protocol match support'
-	depends on IP_NF_IPTABLES
-	help
-	  With this option enabled, you will be able to use the iptables
-	  `sctp' match in order to match on SCTP source/destination ports
-	  and SCTP chunk types.
-
-	  If you want to compile it as a module, say M here and read
-	  <file:Documentation/modules.txt>.  If unsure, say `N'.
-
-config IP_NF_MATCH_DCCP
-	tristate  'DCCP protocol match support'
-	depends on IP_NF_IPTABLES
-	help
-	  With this option enabled, you will be able to use the iptables
-	  `dccp' match in order to match on DCCP source/destination ports
-	  and DCCP flags.
-
-	  If you want to compile it as a module, say M here and read
-	  <file:Documentation/modules.txt>.  If unsure, say `N'.
-
-config IP_NF_MATCH_COMMENT
-	tristate  'comment match support'
-	depends on IP_NF_IPTABLES
-	help
-	  This option adds a `comment' dummy-match, which allows you to put
-	  comments in your iptables ruleset.
-
-	  If you want to compile it as a module, say M here and read
-	  <file:Documentation/modules.txt>.  If unsure, say `N'.
-
-config IP_NF_MATCH_CONNMARK
-	tristate  'Connection mark match support'
-	depends on IP_NF_IPTABLES
-	depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK_IPV4)
-	help
-	  This option adds a `connmark' match, which allows you to match the
-	  connection mark value previously set for the session by `CONNMARK'. 
-	
-	  If you want to compile it as a module, say M here and read
-	  <file:Documentation/modules.txt>.  The module will be called
-	  ipt_connmark.o.  If unsure, say `N'.
-
-config IP_NF_MATCH_CONNBYTES
-	tristate  'Connection byte/packet counter match support'
-	depends on IP_NF_IPTABLES
-	depends on (IP_NF_CONNTRACK && IP_NF_CT_ACCT) || (NF_CT_ACCT && NF_CONNTRACK_IPV4)
-	help
-	  This option adds a `connbytes' match, which allows you to match the
-	  number of bytes and/or packets for each direction within a connection.
-
-	  If you want to compile it as a module, say M here and read
-	  <file:Documentation/modules.txt>.  If unsure, say `N'.
-
 config IP_NF_MATCH_HASHLIMIT
 	tristate  'hashlimit match support'
 	depends on IP_NF_IPTABLES
@@ -474,19 +303,6 @@ config IP_NF_MATCH_HASHLIMIT
 	  destination IP' or `500pps from any given source IP'  with a single
 	  IPtables rule.
 
-config IP_NF_MATCH_STRING
-	tristate  'string match support'
-	depends on IP_NF_IPTABLES 
-	select TEXTSEARCH
-	select TEXTSEARCH_KMP
-	select TEXTSEARCH_BM
-	select TEXTSEARCH_FSM
-	help
-	  This option adds a `string' match, which allows you to look for
-	  pattern matchings in packets.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP_NF_MATCH_POLICY
        tristate "IPsec policy match support"
        depends on IP_NF_IPTABLES && XFRM
@@ -572,17 +388,6 @@ config IP_NF_TARGET_TCPMSS
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP_NF_TARGET_NFQUEUE
-	tristate "NFQUEUE Target Support"
-	depends on IP_NF_IPTABLES
-	help
-	  This Target replaced the old obsolete QUEUE target.
-
-	  As opposed to QUEUE, it supports 65535 different queues,
-	  not just one.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 # NAT + specific targets
 config IP_NF_NAT
 	tristate "Full NAT"
@@ -735,31 +540,6 @@ config IP_NF_TARGET_DSCP
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP_NF_TARGET_MARK
-	tristate "MARK target support"
-	depends on IP_NF_MANGLE
-	help
-	  This option adds a `MARK' target, which allows you to create rules
-	  in the `mangle' table which alter the netfilter mark (nfmark) field
-	  associated with the packet prior to routing. This can change
-	  the routing method (see `Use netfilter MARK value as routing
-	  key') and can also be used by other subsystems to change their
-	  behavior.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
-config IP_NF_TARGET_CLASSIFY
-	tristate "CLASSIFY target support"
-	depends on IP_NF_MANGLE
-	help
-	  This option adds a `CLASSIFY' target, which enables the user to set
-	  the priority of a packet. Some qdiscs can use this value for
-	  classification, among these are:
-
-  	  atm, cbq, dsmark, pfifo_fast, htb, prio
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP_NF_TARGET_TTL
 	tristate  'TTL target support'
 	depends on IP_NF_MANGLE
@@ -774,19 +554,6 @@ config IP_NF_TARGET_TTL
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP_NF_TARGET_CONNMARK
-	tristate  'CONNMARK target support'
-	depends on IP_NF_MANGLE
-	depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || (NF_CONNTRACK_MARK && NF_CONNTRACK_IPV4)
-	help
-	  This option adds a `CONNMARK' target, which allows one to manipulate
-	  the connection mark value.  Similar to the MARK target, but
-	  affects the connection mark value rather than the packet mark value.
-	
-	  If you want to compile it as a module, say M here and read
-	  <file:Documentation/modules.txt>.  The module will be called
-	  ipt_CONNMARK.o.  If unsure, say `N'.
-
 config IP_NF_TARGET_CLUSTERIP
 	tristate "CLUSTERIP target support (EXPERIMENTAL)"
 	depends on IP_NF_MANGLE && EXPERIMENTAL
@@ -810,23 +577,10 @@ config IP_NF_RAW
 	  If you want to compile it as a module, say M here and read
 	  <file:Documentation/modules.txt>.  If unsure, say `N'.
 
-config IP_NF_TARGET_NOTRACK
-	tristate  'NOTRACK target support'
-	depends on IP_NF_RAW
-	depends on IP_NF_CONNTRACK || NF_CONNTRACK_IPV4
-	help
-	  The NOTRACK target allows a select rule to specify
-	  which packets *not* to enter the conntrack/NAT
-	  subsystem with all the consequences (no ICMP error tracking,
-	  no protocol helpers for the selected packets).
-	
-	  If you want to compile it as a module, say M here and read
-	  <file:Documentation/modules.txt>.  If unsure, say `N'.
-
-
 # ARP tables
 config IP_NF_ARPTABLES
 	tristate "ARP tables support"
+	depends on NETFILTER_XTABLES
 	help
 	  arptables is a general, extensible packet identification framework.
 	  The ARP packet filtering and mangling (manipulation)subsystems

net/ipv4/netfilter/Makefile

@@ -47,14 +47,8 @@ obj-$(CONFIG_IP_NF_RAW) += iptable_raw.o
 
 # matches
 obj-$(CONFIG_IP_NF_MATCH_HELPER) += ipt_helper.o
-obj-$(CONFIG_IP_NF_MATCH_LIMIT) += ipt_limit.o
 obj-$(CONFIG_IP_NF_MATCH_HASHLIMIT) += ipt_hashlimit.o
-obj-$(CONFIG_IP_NF_MATCH_SCTP) += ipt_sctp.o
-obj-$(CONFIG_IP_NF_MATCH_DCCP) += ipt_dccp.o
-obj-$(CONFIG_IP_NF_MATCH_MARK) += ipt_mark.o
-obj-$(CONFIG_IP_NF_MATCH_MAC) += ipt_mac.o
 obj-$(CONFIG_IP_NF_MATCH_IPRANGE) += ipt_iprange.o
-obj-$(CONFIG_IP_NF_MATCH_PKTTYPE) += ipt_pkttype.o
 obj-$(CONFIG_IP_NF_MATCH_MULTIPORT) += ipt_multiport.o
 obj-$(CONFIG_IP_NF_MATCH_OWNER) += ipt_owner.o
 obj-$(CONFIG_IP_NF_MATCH_TOS) += ipt_tos.o
@@ -62,40 +56,25 @@ obj-$(CONFIG_IP_NF_MATCH_RECENT) += ipt_recent.o
 obj-$(CONFIG_IP_NF_MATCH_ECN) += ipt_ecn.o
 obj-$(CONFIG_IP_NF_MATCH_DSCP) += ipt_dscp.o
 obj-$(CONFIG_IP_NF_MATCH_AH_ESP) += ipt_ah.o ipt_esp.o
-obj-$(CONFIG_IP_NF_MATCH_LENGTH) += ipt_length.o
 obj-$(CONFIG_IP_NF_MATCH_TTL) += ipt_ttl.o
-obj-$(CONFIG_IP_NF_MATCH_STATE) += ipt_state.o
-obj-$(CONFIG_IP_NF_MATCH_CONNMARK) += ipt_connmark.o
-obj-$(CONFIG_IP_NF_MATCH_CONNTRACK) += ipt_conntrack.o
-obj-$(CONFIG_IP_NF_MATCH_CONNBYTES) += ipt_connbytes.o
-obj-$(CONFIG_IP_NF_MATCH_TCPMSS) += ipt_tcpmss.o
-obj-$(CONFIG_IP_NF_MATCH_REALM) += ipt_realm.o
 obj-$(CONFIG_IP_NF_MATCH_ADDRTYPE) += ipt_addrtype.o
-obj-$(CONFIG_IP_NF_MATCH_PHYSDEV) += ipt_physdev.o
 obj-$(CONFIG_IP_NF_MATCH_POLICY) += ipt_policy.o
-obj-$(CONFIG_IP_NF_MATCH_COMMENT) += ipt_comment.o
-obj-$(CONFIG_IP_NF_MATCH_STRING) += ipt_string.o
 
 # targets
 obj-$(CONFIG_IP_NF_TARGET_REJECT) += ipt_REJECT.o
 obj-$(CONFIG_IP_NF_TARGET_TOS) += ipt_TOS.o
 obj-$(CONFIG_IP_NF_TARGET_ECN) += ipt_ECN.o
 obj-$(CONFIG_IP_NF_TARGET_DSCP) += ipt_DSCP.o
-obj-$(CONFIG_IP_NF_TARGET_MARK) += ipt_MARK.o
 obj-$(CONFIG_IP_NF_TARGET_MASQUERADE) += ipt_MASQUERADE.o
 obj-$(CONFIG_IP_NF_TARGET_REDIRECT) += ipt_REDIRECT.o
 obj-$(CONFIG_IP_NF_TARGET_NETMAP) += ipt_NETMAP.o
 obj-$(CONFIG_IP_NF_TARGET_SAME) += ipt_SAME.o
-obj-$(CONFIG_IP_NF_TARGET_CLASSIFY) += ipt_CLASSIFY.o
 obj-$(CONFIG_IP_NF_NAT_SNMP_BASIC) += ip_nat_snmp_basic.o
 obj-$(CONFIG_IP_NF_TARGET_LOG) += ipt_LOG.o
-obj-$(CONFIG_IP_NF_TARGET_CONNMARK) += ipt_CONNMARK.o
 obj-$(CONFIG_IP_NF_TARGET_ULOG) += ipt_ULOG.o
 obj-$(CONFIG_IP_NF_TARGET_TCPMSS) += ipt_TCPMSS.o
-obj-$(CONFIG_IP_NF_TARGET_NOTRACK) += ipt_NOTRACK.o
 obj-$(CONFIG_IP_NF_TARGET_CLUSTERIP) += ipt_CLUSTERIP.o
 obj-$(CONFIG_IP_NF_TARGET_TTL) += ipt_TTL.o
-obj-$(CONFIG_IP_NF_TARGET_NFQUEUE) += ipt_NFQUEUE.o
 
 # generic ARP tables
 obj-$(CONFIG_IP_NF_ARPTABLES) += arp_tables.o

net/ipv4/netfilter/arp_tables.c

@@ -24,6 +24,7 @@
 #include <asm/uaccess.h>
 #include <asm/semaphore.h>
 
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_arp/arp_tables.h>
 
 MODULE_LICENSE("GPL");
@@ -55,28 +56,9 @@ do {								\
 #else
 #define ARP_NF_ASSERT(x)
 #endif
-#define SMP_ALIGN(x) (((x) + SMP_CACHE_BYTES-1) & ~(SMP_CACHE_BYTES-1))
 
-static DECLARE_MUTEX(arpt_mutex);
-
-#define ASSERT_READ_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
-#define ASSERT_WRITE_LOCK(x) ARP_NF_ASSERT(down_trylock(&arpt_mutex) != 0)
 #include <linux/netfilter_ipv4/listhelp.h>
 
-struct arpt_table_info {
-	unsigned int size;
-	unsigned int number;
-	unsigned int initial_entries;
-	unsigned int hook_entry[NF_ARP_NUMHOOKS];
-	unsigned int underflow[NF_ARP_NUMHOOKS];
-	void *entries[NR_CPUS];
-};
-
-static LIST_HEAD(arpt_target);
-static LIST_HEAD(arpt_tables);
-#define SET_COUNTER(c,b,p) do { (c).bcnt = (b); (c).pcnt = (p); } while(0)
-#define ADD_COUNTER(c,b,p) do { (c).bcnt += (b); (c).pcnt += (p); } while(0)
-
 static inline int arp_devaddr_compare(const struct arpt_devaddr_info *ap,
 				      char *hdr_addr, int len)
 {
@@ -223,9 +205,9 @@ static inline int arp_checkentry(const struct arpt_arp *arp)
 }
 
 static unsigned int arpt_error(struct sk_buff **pskb,
-			       unsigned int hooknum,
 			       const struct net_device *in,
 			       const struct net_device *out,
+			       unsigned int hooknum,
 			       const void *targinfo,
 			       void *userinfo)
 {
@@ -254,6 +236,7 @@ unsigned int arpt_do_table(struct sk_buff **pskb,
 	struct arpt_entry *e, *back;
 	const char *indev, *outdev;
 	void *table_base;
+	struct xt_table_info *private = table->private;
 
 	/* ARP header, plus 2 device addresses, plus 2 IP addresses.  */
 	if (!pskb_may_pull((*pskb), (sizeof(struct arphdr) +
@@ -265,9 +248,9 @@ unsigned int arpt_do_table(struct sk_buff **pskb,
 	outdev = out ? out->name : nulldevname;
 
 	read_lock_bh(&table->lock);
-	table_base = (void *)table->private->entries[smp_processor_id()];
-	e = get_entry(table_base, table->private->hook_entry[hook]);
-	back = get_entry(table_base, table->private->underflow[hook]);
+	table_base = (void *)private->entries[smp_processor_id()];
+	e = get_entry(table_base, private->hook_entry[hook]);
+	back = get_entry(table_base, private->underflow[hook]);
 
 	arp = (*pskb)->nh.arph;
 	do {
@@ -315,8 +298,8 @@ unsigned int arpt_do_table(struct sk_buff **pskb,
 				 * abs. verdicts
 				 */
 				verdict = t->u.kernel.target->target(pskb,
-								     hook,
 								     in, out,
+								     hook,
 								     t->data,
 								     userdata);
 
@@ -341,106 +324,6 @@ unsigned int arpt_do_table(struct sk_buff **pskb,
 		return verdict;
 }
 
-/*
- * These are weird, but module loading must not be done with mutex
- * held (since they will register), and we have to have a single
- * function to use try_then_request_module().
- */
-
-/* Find table by name, grabs mutex & ref.  Returns ERR_PTR() on error. */
-static inline struct arpt_table *find_table_lock(const char *name)
-{
-	struct arpt_table *t;
-
-	if (down_interruptible(&arpt_mutex) != 0)
-		return ERR_PTR(-EINTR);
-
-	list_for_each_entry(t, &arpt_tables, list)
-		if (strcmp(t->name, name) == 0 && try_module_get(t->me))
-			return t;
-	up(&arpt_mutex);
-	return NULL;
-}
-
-
-/* Find target, grabs ref.  Returns ERR_PTR() on error. */
-static inline struct arpt_target *find_target(const char *name, u8 revision)
-{
-	struct arpt_target *t;
-	int err = 0;
-
-	if (down_interruptible(&arpt_mutex) != 0)
-		return ERR_PTR(-EINTR);
-
-	list_for_each_entry(t, &arpt_target, list) {
-		if (strcmp(t->name, name) == 0) {
-			if (t->revision == revision) {
-				if (try_module_get(t->me)) {
-					up(&arpt_mutex);
-					return t;
-				}
-			} else
-				err = -EPROTOTYPE; /* Found something. */
-		}
-	}
-	up(&arpt_mutex);
-	return ERR_PTR(err);
-}
-
-struct arpt_target *arpt_find_target(const char *name, u8 revision)
-{
-	struct arpt_target *target;
-
-	target = try_then_request_module(find_target(name, revision),
-					 "arpt_%s", name);
-	if (IS_ERR(target) || !target)
-		return NULL;
-	return target;
-}
-
-static int target_revfn(const char *name, u8 revision, int *bestp)
-{
-	struct arpt_target *t;
-	int have_rev = 0;
-
-	list_for_each_entry(t, &arpt_target, list) {
-		if (strcmp(t->name, name) == 0) {
-			if (t->revision > *bestp)
-				*bestp = t->revision;
-			if (t->revision == revision)
-				have_rev =1;
-		}
-	}
-	return have_rev;
-}
-
-/* Returns true or false (if no such extension at all) */
-static inline int find_revision(const char *name, u8 revision,
-				int (*revfn)(const char *, u8, int *),
-				int *err)
-{
-	int have_rev, best = -1;
-
-	if (down_interruptible(&arpt_mutex) != 0) {
-		*err = -EINTR;
-		return 1;
-	}
-	have_rev = revfn(name, revision, &best);
-	up(&arpt_mutex);
-
-	/* Nothing at all?  Return 0 to try loading module. */
-	if (best == -1) {
-		*err = -ENOENT;
-		return 0;
-	}
-
-	*err = best;
-	if (!have_rev)
-		*err = -EPROTONOSUPPORT;
-	return 1;
-}
-
-
 /* All zeroes == unconditional rule. */
 static inline int unconditional(const struct arpt_arp *arp)
 {
@@ -456,7 +339,7 @@ static inline int unconditional(const struct arpt_arp *arp)
 /* Figures out from what hook each rule can be called: returns 0 if
  * there are loops.  Puts hook bitmask in comefrom.
  */
-static int mark_source_chains(struct arpt_table_info *newinfo,
+static int mark_source_chains(struct xt_table_info *newinfo,
 			      unsigned int valid_hooks, void *entry0)
 {
 	unsigned int hook;
@@ -587,8 +470,8 @@ static inline int check_entry(struct arpt_entry *e, const char *name, unsigned i
 	}
 
 	t = arpt_get_target(e);
-	target = try_then_request_module(find_target(t->u.user.name,
-						     t->u.user.revision),
+	target = try_then_request_module(xt_find_target(NF_ARP, t->u.user.name,
+							t->u.user.revision),
 					 "arpt_%s", t->u.user.name);
 	if (IS_ERR(target) || !target) {
 		duprintf("check_entry: `%s' not found\n", t->u.user.name);
@@ -622,7 +505,7 @@ out:
 }
 
 static inline int check_entry_size_and_hooks(struct arpt_entry *e,
-					     struct arpt_table_info *newinfo,
+					     struct xt_table_info *newinfo,
 					     unsigned char *base,
 					     unsigned char *limit,
 					     const unsigned int *hook_entries,
@@ -656,7 +539,7 @@ static inline int check_entry_size_and_hooks(struct arpt_entry *e,
            < 0 (not ARPT_RETURN). --RR */
 
 	/* Clear counters and comefrom */
-	e->counters = ((struct arpt_counters) { 0, 0 });
+	e->counters = ((struct xt_counters) { 0, 0 });
 	e->comefrom = 0;
 
 	(*i)++;
@@ -683,7 +566,7 @@ static inline int cleanup_entry(struct arpt_entry *e, unsigned int *i)
  */
 static int translate_table(const char *name,
 			   unsigned int valid_hooks,
-			   struct arpt_table_info *newinfo,
+			   struct xt_table_info *newinfo,
 			   void *entry0,
 			   unsigned int size,
 			   unsigned int number,
@@ -764,34 +647,9 @@ static int translate_table(const char *name,
 	return ret;
 }
 
-static struct arpt_table_info *replace_table(struct arpt_table *table,
-					     unsigned int num_counters,
-					     struct arpt_table_info *newinfo,
-					     int *error)
-{
-	struct arpt_table_info *oldinfo;
-
-	/* Do the substitution. */
-	write_lock_bh(&table->lock);
-	/* Check inside lock: is the old number correct? */
-	if (num_counters != table->private->number) {
-		duprintf("num_counters != table->private->number (%u/%u)\n",
-			 num_counters, table->private->number);
-		write_unlock_bh(&table->lock);
-		*error = -EAGAIN;
-		return NULL;
-	}
-	oldinfo = table->private;
-	table->private = newinfo;
-	newinfo->initial_entries = oldinfo->initial_entries;
-	write_unlock_bh(&table->lock);
-
-	return oldinfo;
-}
-
 /* Gets counters. */
 static inline int add_entry_to_counter(const struct arpt_entry *e,
-				       struct arpt_counters total[],
+				       struct xt_counters total[],
 				       unsigned int *i)
 {
 	ADD_COUNTER(total[*i], e->counters.bcnt, e->counters.pcnt);
@@ -801,7 +659,7 @@ static inline int add_entry_to_counter(const struct arpt_entry *e,
 }
 
 static inline int set_entry_to_counter(const struct arpt_entry *e,
-				       struct arpt_counters total[],
+				       struct xt_counters total[],
 				       unsigned int *i)
 {
 	SET_COUNTER(total[*i], e->counters.bcnt, e->counters.pcnt);
@@ -810,8 +668,8 @@ static inline int set_entry_to_counter(const struct arpt_entry *e,
 	return 0;
 }
 
-static void get_counters(const struct arpt_table_info *t,
-			 struct arpt_counters counters[])
+static void get_counters(const struct xt_table_info *t,
+			 struct xt_counters counters[])
 {
 	unsigned int cpu;
 	unsigned int i;
@@ -849,7 +707,8 @@ static int copy_entries_to_user(unsigned int total_size,
 {
 	unsigned int off, num, countersize;
 	struct arpt_entry *e;
-	struct arpt_counters *counters;
+	struct xt_counters *counters;
+	struct xt_table_info *private = table->private;
 	int ret = 0;
 	void *loc_cpu_entry;
 
@@ -857,18 +716,18 @@ static int copy_entries_to_user(unsigned int total_size,
 	 * (other than comefrom, which userspace doesn't care
 	 * about).
 	 */
-	countersize = sizeof(struct arpt_counters) * table->private->number;
-	counters = vmalloc(countersize);
+	countersize = sizeof(struct xt_counters) * private->number;
+	counters = vmalloc_node(countersize, numa_node_id());
 
 	if (counters == NULL)
 		return -ENOMEM;
 
 	/* First, sum counters... */
 	write_lock_bh(&table->lock);
-	get_counters(table->private, counters);
+	get_counters(private, counters);
 	write_unlock_bh(&table->lock);
 
-	loc_cpu_entry = table->private->entries[raw_smp_processor_id()];
+	loc_cpu_entry = private->entries[raw_smp_processor_id()];
 	/* ... then copy entire thing ... */
 	if (copy_to_user(userptr, loc_cpu_entry, total_size) != 0) {
 		ret = -EFAULT;
@@ -911,75 +770,34 @@ static int get_entries(const struct arpt_get_entries *entries,
 	int ret;
 	struct arpt_table *t;
 
-	t = find_table_lock(entries->name);
+	t = xt_find_table_lock(NF_ARP, entries->name);
 	if (t || !IS_ERR(t)) {
+		struct xt_table_info *private = t->private;
 		duprintf("t->private->number = %u\n",
-			 t->private->number);
-		if (entries->size == t->private->size)
-			ret = copy_entries_to_user(t->private->size,
+			 private->number);
+		if (entries->size == private->size)
+			ret = copy_entries_to_user(private->size,
 						   t, uptr->entrytable);
 		else {
 			duprintf("get_entries: I've got %u not %u!\n",
-				 t->private->size,
-				 entries->size);
+				 private->size, entries->size);
 			ret = -EINVAL;
 		}
 		module_put(t->me);
-		up(&arpt_mutex);
+		xt_table_unlock(t);
 	} else
 		ret = t ? PTR_ERR(t) : -ENOENT;
 
 	return ret;
 }
 
-static void free_table_info(struct arpt_table_info *info)
-{
-	int cpu;
-	for_each_cpu(cpu) {
-		if (info->size <= PAGE_SIZE)
-			kfree(info->entries[cpu]);
-		else
-			vfree(info->entries[cpu]);
-	}
-	kfree(info);
-}
-
-static struct arpt_table_info *alloc_table_info(unsigned int size)
-{
-	struct arpt_table_info *newinfo;
-	int cpu;
-	
-	newinfo = kzalloc(sizeof(struct arpt_table_info), GFP_KERNEL);
-	if (!newinfo)
-		return NULL;
-
-	newinfo->size = size;
-
-	for_each_cpu(cpu) {
-		if (size <= PAGE_SIZE)
-			newinfo->entries[cpu] = kmalloc_node(size,
-							GFP_KERNEL,
-							cpu_to_node(cpu));
-		else
-			newinfo->entries[cpu] = vmalloc_node(size,
-							     cpu_to_node(cpu));
-
-		if (newinfo->entries[cpu] == NULL) {
-			free_table_info(newinfo);
-			return NULL;
-		}
-	}
-
-	return newinfo;
-}
-
 static int do_replace(void __user *user, unsigned int len)
 {
 	int ret;
 	struct arpt_replace tmp;
 	struct arpt_table *t;
-	struct arpt_table_info *newinfo, *oldinfo;
-	struct arpt_counters *counters;
+	struct xt_table_info *newinfo, *oldinfo;
+	struct xt_counters *counters;
 	void *loc_cpu_entry, *loc_cpu_old_entry;
 
 	if (copy_from_user(&tmp, user, sizeof(tmp)) != 0)
@@ -989,11 +807,7 @@ static int do_replace(void __user *user, unsigned int len)
 	if (len != sizeof(tmp) + tmp.size)
 		return -ENOPROTOOPT;
 
-	/* Pedantry: prevent them from hitting BUG() in vmalloc.c --RR */
-	if ((SMP_ALIGN(tmp.size) >> PAGE_SHIFT) + 2 > num_physpages)
-		return -ENOMEM;
-
-	newinfo = alloc_table_info(tmp.size);
+	newinfo = xt_alloc_table_info(tmp.size);
 	if (!newinfo)
 		return -ENOMEM;
 
@@ -1005,7 +819,7 @@ static int do_replace(void __user *user, unsigned int len)
 		goto free_newinfo;
 	}
 
-	counters = vmalloc(tmp.num_counters * sizeof(struct arpt_counters));
+	counters = vmalloc(tmp.num_counters * sizeof(struct xt_counters));
 	if (!counters) {
 		ret = -ENOMEM;
 		goto free_newinfo;
@@ -1019,7 +833,7 @@ static int do_replace(void __user *user, unsigned int len)
 
 	duprintf("arp_tables: Translated table\n");
 
-	t = try_then_request_module(find_table_lock(tmp.name),
+	t = try_then_request_module(xt_find_table_lock(NF_ARP, tmp.name),
 				    "arptable_%s", tmp.name);
 	if (!t || IS_ERR(t)) {
 		ret = t ? PTR_ERR(t) : -ENOENT;
@@ -1034,7 +848,7 @@ static int do_replace(void __user *user, unsigned int len)
 		goto put_module;
 	}
 
-	oldinfo = replace_table(t, tmp.num_counters, newinfo, &ret);
+	oldinfo = xt_replace_table(t, tmp.num_counters, newinfo, &ret);
 	if (!oldinfo)
 		goto put_module;
 
@@ -1054,23 +868,23 @@ static int do_replace(void __user *user, unsigned int len)
 	loc_cpu_old_entry = oldinfo->entries[raw_smp_processor_id()];
 	ARPT_ENTRY_ITERATE(loc_cpu_old_entry, oldinfo->size, cleanup_entry,NULL);
 
-	free_table_info(oldinfo);
+	xt_free_table_info(oldinfo);
 	if (copy_to_user(tmp.counters, counters,
-			 sizeof(struct arpt_counters) * tmp.num_counters) != 0)
+			 sizeof(struct xt_counters) * tmp.num_counters) != 0)
 		ret = -EFAULT;
 	vfree(counters);
-	up(&arpt_mutex);
+	xt_table_unlock(t);
 	return ret;
 
  put_module:
 	module_put(t->me);
-	up(&arpt_mutex);
+	xt_table_unlock(t);
  free_newinfo_counters_untrans:
 	ARPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry, NULL);
  free_newinfo_counters:
 	vfree(counters);
  free_newinfo:
-	free_table_info(newinfo);
+	xt_free_table_info(newinfo);
 	return ret;
 }
 
@@ -1078,7 +892,7 @@ static int do_replace(void __user *user, unsigned int len)
  * and everything is OK.
  */
 static inline int add_counter_to_entry(struct arpt_entry *e,
-				       const struct arpt_counters addme[],
+				       const struct xt_counters addme[],
 				       unsigned int *i)
 {
 
@@ -1091,15 +905,16 @@ static inline int add_counter_to_entry(struct arpt_entry *e,
 static int do_add_counters(void __user *user, unsigned int len)
 {
 	unsigned int i;
-	struct arpt_counters_info tmp, *paddc;
+	struct xt_counters_info tmp, *paddc;
 	struct arpt_table *t;
+	struct xt_table_info *private;
 	int ret = 0;
 	void *loc_cpu_entry;
 
 	if (copy_from_user(&tmp, user, sizeof(tmp)) != 0)
 		return -EFAULT;
 
-	if (len != sizeof(tmp) + tmp.num_counters*sizeof(struct arpt_counters))
+	if (len != sizeof(tmp) + tmp.num_counters*sizeof(struct xt_counters))
 		return -EINVAL;
 
 	paddc = vmalloc(len);
@@ -1111,29 +926,30 @@ static int do_add_counters(void __user *user, unsigned int len)
 		goto free;
 	}
 
-	t = find_table_lock(tmp.name);
+	t = xt_find_table_lock(NF_ARP, tmp.name);
 	if (!t || IS_ERR(t)) {
 		ret = t ? PTR_ERR(t) : -ENOENT;
 		goto free;
 	}
 
 	write_lock_bh(&t->lock);
-	if (t->private->number != paddc->num_counters) {
+	private = t->private;
+	if (private->number != paddc->num_counters) {
 		ret = -EINVAL;
 		goto unlock_up_free;
 	}
 
 	i = 0;
 	/* Choose the copy that is on our node */
-	loc_cpu_entry = t->private->entries[smp_processor_id()];
+	loc_cpu_entry = private->entries[smp_processor_id()];
 	ARPT_ENTRY_ITERATE(loc_cpu_entry,
-			   t->private->size,
+			   private->size,
 			   add_counter_to_entry,
 			   paddc->counters,
 			   &i);
  unlock_up_free:
 	write_unlock_bh(&t->lock);
-	up(&arpt_mutex);
+	xt_table_unlock(t);
 	module_put(t->me);
  free:
 	vfree(paddc);
@@ -1190,25 +1006,26 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 		}
 		name[ARPT_TABLE_MAXNAMELEN-1] = '\0';
 
-		t = try_then_request_module(find_table_lock(name),
+		t = try_then_request_module(xt_find_table_lock(NF_ARP, name),
 					    "arptable_%s", name);
 		if (t && !IS_ERR(t)) {
 			struct arpt_getinfo info;
+			struct xt_table_info *private = t->private;
 
 			info.valid_hooks = t->valid_hooks;
-			memcpy(info.hook_entry, t->private->hook_entry,
+			memcpy(info.hook_entry, private->hook_entry,
 			       sizeof(info.hook_entry));
-			memcpy(info.underflow, t->private->underflow,
+			memcpy(info.underflow, private->underflow,
 			       sizeof(info.underflow));
-			info.num_entries = t->private->number;
-			info.size = t->private->size;
+			info.num_entries = private->number;
+			info.size = private->size;
 			strcpy(info.name, name);
 
 			if (copy_to_user(user, &info, *len) != 0)
 				ret = -EFAULT;
 			else
 				ret = 0;
-			up(&arpt_mutex);
+			xt_table_unlock(t);
 			module_put(t->me);
 		} else
 			ret = t ? PTR_ERR(t) : -ENOENT;
@@ -1233,7 +1050,7 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 	}
 
 	case ARPT_SO_GET_REVISION_TARGET: {
-		struct arpt_get_revision rev;
+		struct xt_get_revision rev;
 
 		if (*len != sizeof(rev)) {
 			ret = -EINVAL;
@@ -1244,8 +1061,8 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 			break;
 		}
 
-		try_then_request_module(find_revision(rev.name, rev.revision,
-						      target_revfn, &ret),
+		try_then_request_module(xt_find_revision(NF_ARP, rev.name,
+							 rev.revision, 1, &ret),
 					"arpt_%s", rev.name);
 		break;
 	}
@@ -1258,38 +1075,16 @@ static int do_arpt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len
 	return ret;
 }
 
-/* Registration hooks for targets. */
-int arpt_register_target(struct arpt_target *target)
-{
-	int ret;
-
-	ret = down_interruptible(&arpt_mutex);
-	if (ret != 0)
-		return ret;
-
-	list_add(&target->list, &arpt_target);
-	up(&arpt_mutex);
-
-	return ret;
-}
-
-void arpt_unregister_target(struct arpt_target *target)
-{
-	down(&arpt_mutex);
-	LIST_DELETE(&arpt_target, target);
-	up(&arpt_mutex);
-}
-
 int arpt_register_table(struct arpt_table *table,
 			const struct arpt_replace *repl)
 {
 	int ret;
-	struct arpt_table_info *newinfo;
-	static struct arpt_table_info bootstrap
+	struct xt_table_info *newinfo;
+	static struct xt_table_info bootstrap
 		= { 0, 0, 0, { 0 }, { 0 }, { } };
 	void *loc_cpu_entry;
 
-	newinfo = alloc_table_info(repl->size);
+	newinfo = xt_alloc_table_info(repl->size);
 	if (!newinfo) {
 		ret = -ENOMEM;
 		return ret;
@@ -1304,60 +1099,33 @@ int arpt_register_table(struct arpt_table *table,
 			      repl->num_entries,
 			      repl->hook_entry,
 			      repl->underflow);
+
 	duprintf("arpt_register_table: translate table gives %d\n", ret);
 	if (ret != 0) {
-		free_table_info(newinfo);
+		xt_free_table_info(newinfo);
 		return ret;
 	}
 
-	ret = down_interruptible(&arpt_mutex);
-	if (ret != 0) {
-		free_table_info(newinfo);
+	if (xt_register_table(table, &bootstrap, newinfo) != 0) {
+		xt_free_table_info(newinfo);
 		return ret;
 	}
 
-	/* Don't autoload: we'd eat our tail... */
-	if (list_named_find(&arpt_tables, table->name)) {
-		ret = -EEXIST;
-		goto free_unlock;
-	}
-
-	/* Simplifies replace_table code. */
-	table->private = &bootstrap;
-	if (!replace_table(table, 0, newinfo, &ret))
-		goto free_unlock;
-
-	duprintf("table->private->number = %u\n",
-		 table->private->number);
-	
-	/* save number of initial entries */
-	table->private->initial_entries = table->private->number;
-
-	rwlock_init(&table->lock);
-	list_prepend(&arpt_tables, table);
-
- unlock:
-	up(&arpt_mutex);
-	return ret;
-
- free_unlock:
-	free_table_info(newinfo);
-	goto unlock;
+	return 0;
 }
 
 void arpt_unregister_table(struct arpt_table *table)
 {
+	struct xt_table_info *private;
 	void *loc_cpu_entry;
 
-	down(&arpt_mutex);
-	LIST_DELETE(&arpt_tables, table);
-	up(&arpt_mutex);
+	private = xt_unregister_table(table);
 
 	/* Decrease module usage counts and free resources */
-	loc_cpu_entry = table->private->entries[raw_smp_processor_id()];
-	ARPT_ENTRY_ITERATE(loc_cpu_entry, table->private->size,
+	loc_cpu_entry = private->entries[raw_smp_processor_id()];
+	ARPT_ENTRY_ITERATE(loc_cpu_entry, private->size,
 			   cleanup_entry, NULL);
-	free_table_info(table->private);
+	xt_free_table_info(private);
 }
 
 /* The built-in targets: standard (NULL) and error. */
@@ -1380,52 +1148,15 @@ static struct nf_sockopt_ops arpt_sockopts = {
 	.get		= do_arpt_get_ctl,
 };
 
-#ifdef CONFIG_PROC_FS
-static inline int print_name(const struct arpt_table *t,
-			     off_t start_offset, char *buffer, int length,
-			     off_t *pos, unsigned int *count)
-{
-	if ((*count)++ >= start_offset) {
-		unsigned int namelen;
-
-		namelen = sprintf(buffer + *pos, "%s\n", t->name);
-		if (*pos + namelen > length) {
-			/* Stop iterating */
-			return 1;
-		}
-		*pos += namelen;
-	}
-	return 0;
-}
-
-static int arpt_get_tables(char *buffer, char **start, off_t offset, int length)
-{
-	off_t pos = 0;
-	unsigned int count = 0;
-
-	if (down_interruptible(&arpt_mutex) != 0)
-		return 0;
-
-	LIST_FIND(&arpt_tables, print_name, struct arpt_table *,
-		  offset, buffer, length, &pos, &count);
-
-	up(&arpt_mutex);
-
-	/* `start' hack - see fs/proc/generic.c line ~105 */
-	*start=(char *)((unsigned long)count-offset);
-	return pos;
-}
-#endif /*CONFIG_PROC_FS*/
-
 static int __init init(void)
 {
 	int ret;
 
+	xt_proto_init(NF_ARP);
+
 	/* Noone else will be downing sem now, so we won't sleep */
-	down(&arpt_mutex);
-	list_append(&arpt_target, &arpt_standard_target);
-	list_append(&arpt_target, &arpt_error_target);
-	up(&arpt_mutex);
+	xt_register_target(NF_ARP, &arpt_standard_target);
+	xt_register_target(NF_ARP, &arpt_error_target);
 
 	/* Register setsockopt */
 	ret = nf_register_sockopt(&arpt_sockopts);
@@ -1434,19 +1165,6 @@ static int __init init(void)
 		return ret;
 	}
 
-#ifdef CONFIG_PROC_FS
-	{
-		struct proc_dir_entry *proc;
-
-		proc = proc_net_create("arp_tables_names", 0, arpt_get_tables);
-		if (!proc) {
-			nf_unregister_sockopt(&arpt_sockopts);
-			return -ENOMEM;
-		}
-		proc->owner = THIS_MODULE;
-	}
-#endif
-
 	printk("arp_tables: (C) 2002 David S. Miller\n");
 	return 0;
 }
@@ -1454,16 +1172,12 @@ static int __init init(void)
 static void __exit fini(void)
 {
 	nf_unregister_sockopt(&arpt_sockopts);
-#ifdef CONFIG_PROC_FS
-	proc_net_remove("arp_tables_names");
-#endif
+	xt_proto_fini(NF_ARP);
 }
 
 EXPORT_SYMBOL(arpt_register_table);
 EXPORT_SYMBOL(arpt_unregister_table);
 EXPORT_SYMBOL(arpt_do_table);
-EXPORT_SYMBOL(arpt_register_target);
-EXPORT_SYMBOL(arpt_unregister_target);
 
 module_init(init);
 module_exit(fini);

net/ipv4/netfilter/arpt_mangle.c

@@ -8,8 +8,9 @@ MODULE_AUTHOR("Bart De Schuymer <bdschuym@pandora.be>");
 MODULE_DESCRIPTION("arptables arp payload mangle target");
 
 static unsigned int
-target(struct sk_buff **pskb, unsigned int hooknum, const struct net_device *in,
-   const struct net_device *out, const void *targinfo, void *userinfo)
+target(struct sk_buff **pskb, const struct net_device *in,
+   const struct net_device *out, unsigned int hooknum, const void *targinfo,
+   void *userinfo)
 {
 	const struct arpt_mangle *mangle = targinfo;
 	struct arphdr *arp;
@@ -64,7 +65,7 @@ target(struct sk_buff **pskb, unsigned int hooknum, const struct net_device *in,
 }
 
 static int
-checkentry(const char *tablename, const struct arpt_entry *e, void *targinfo,
+checkentry(const char *tablename, const void *e, void *targinfo,
    unsigned int targinfosize, unsigned int hook_mask)
 {
 	const struct arpt_mangle *mangle = targinfo;

net/ipv4/netfilter/arptable_filter.c

@@ -145,6 +145,7 @@ static struct arpt_table packet_filter = {
 	.lock		= RW_LOCK_UNLOCKED,
 	.private	= NULL,
 	.me		= THIS_MODULE,
+	.af		= NF_ARP,
 };
 
 /* The work comes in here from netfilter.c */

net/ipv4/netfilter/ip_conntrack_standalone.c

@@ -944,7 +944,7 @@ module_exit(fini);
 
 /* Some modules need us, but don't depend directly on any symbol.
    They should call this. */
-void need_ip_conntrack(void)
+void need_conntrack(void)
 {
 }
 
@@ -962,7 +962,7 @@ EXPORT_SYMBOL(ip_ct_get_tuple);
 EXPORT_SYMBOL(invert_tuplepr);
 EXPORT_SYMBOL(ip_conntrack_alter_reply);
 EXPORT_SYMBOL(ip_conntrack_destroyed);
-EXPORT_SYMBOL(need_ip_conntrack);
+EXPORT_SYMBOL(need_conntrack);
 EXPORT_SYMBOL(ip_conntrack_helper_register);
 EXPORT_SYMBOL(ip_conntrack_helper_unregister);
 EXPORT_SYMBOL(ip_ct_iterate_cleanup);

net/ipv4/netfilter/ip_nat_rule.c

@@ -95,6 +95,7 @@ static struct ipt_table nat_table = {
 	.valid_hooks	= NAT_VALID_HOOKS,
 	.lock		= RW_LOCK_UNLOCKED,
 	.me		= THIS_MODULE,
+	.af		= AF_INET,
 };
 
 /* Source NAT */
@@ -168,7 +169,7 @@ static unsigned int ipt_dnat_target(struct sk_buff **pskb,
 }
 
 static int ipt_snat_checkentry(const char *tablename,
-			       const struct ipt_entry *e,
+			       const void *entry,
 			       void *targinfo,
 			       unsigned int targinfosize,
 			       unsigned int hook_mask)
@@ -201,7 +202,7 @@ static int ipt_snat_checkentry(const char *tablename,
 }
 
 static int ipt_dnat_checkentry(const char *tablename,
-			       const struct ipt_entry *e,
+			       const void *entry,
 			       void *targinfo,
 			       unsigned int targinfosize,
 			       unsigned int hook_mask)

net/ipv4/netfilter/ip_nat_standalone.c

@@ -364,7 +364,7 @@ static int init_or_cleanup(int init)
 {
 	int ret = 0;
 
-	need_ip_conntrack();
+	need_conntrack();
 
 	if (!init) goto cleanup;
 

net/ipv4/netfilter/ip_tables.c

@@ -2,7 +2,7 @@
  * Packet matching code.
  *
  * Copyright (C) 1999 Paul `Rusty' Russell & Michael J. Neuling
- * Copyright (C) 2000-2004 Netfilter Core Team <coreteam@netfilter.org>
+ * Copyright (C) 2000-2005 Netfilter Core Team <coreteam@netfilter.org>
  *
  * 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
@@ -11,6 +11,8 @@
  * 19 Jan 2002 Harald Welte <laforge@gnumonks.org>
  * 	- increase module usage count as soon as we have rules inside
  * 	  a table
+ * 08 Oct 2005 Harald Welte <lafore@netfilter.org>
+ * 	- Generalize into "x_tables" layer and "{ip,ip6,arp}_tables"
  */
 #include <linux/config.h>
 #include <linux/cache.h>
@@ -20,8 +22,6 @@
 #include <linux/vmalloc.h>
 #include <linux/netdevice.h>
 #include <linux/module.h>
-#include <linux/tcp.h>
-#include <linux/udp.h>
 #include <linux/icmp.h>
 #include <net/ip.h>
 #include <asm/uaccess.h>
@@ -30,6 +30,7 @@
 #include <linux/err.h>
 #include <linux/cpumask.h>
 
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 
 MODULE_LICENSE("GPL");
@@ -62,14 +63,6 @@ do {								\
 #else
 #define IP_NF_ASSERT(x)
 #endif
-#define SMP_ALIGN(x) (((x) + SMP_CACHE_BYTES-1) & ~(SMP_CACHE_BYTES-1))
-
-static DECLARE_MUTEX(ipt_mutex);
-
-/* Must have mutex */
-#define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
-#define ASSERT_WRITE_LOCK(x) IP_NF_ASSERT(down_trylock(&ipt_mutex) != 0)
-#include <linux/netfilter_ipv4/listhelp.h>
 
 #if 0
 /* All the better to debug you with... */
@@ -86,36 +79,6 @@ static DECLARE_MUTEX(ipt_mutex);
 
    Hence the start of any table is given by get_table() below.  */
 
-/* The table itself */
-struct ipt_table_info
-{
-	/* Size per table */
-	unsigned int size;
-	/* Number of entries: FIXME. --RR */
-	unsigned int number;
-	/* Initial number of entries. Needed for module usage count */
-	unsigned int initial_entries;
-
-	/* Entry points and underflows */
-	unsigned int hook_entry[NF_IP_NUMHOOKS];
-	unsigned int underflow[NF_IP_NUMHOOKS];
-
-	/* ipt_entry tables: one per CPU */
-	void *entries[NR_CPUS];
-};
-
-static LIST_HEAD(ipt_target);
-static LIST_HEAD(ipt_match);
-static LIST_HEAD(ipt_tables);
-#define SET_COUNTER(c,b,p) do { (c).bcnt = (b); (c).pcnt = (p); } while(0)
-#define ADD_COUNTER(c,b,p) do { (c).bcnt += (b); (c).pcnt += (p); } while(0)
-
-#if 0
-#define down(x) do { printk("DOWN:%u:" #x "\n", __LINE__); down(x); } while(0)
-#define down_interruptible(x) ({ int __r; printk("DOWNi:%u:" #x "\n", __LINE__); __r = down_interruptible(x); if (__r != 0) printk("ABORT-DOWNi:%u\n", __LINE__); __r; })
-#define up(x) do { printk("UP:%u:" #x "\n", __LINE__); up(x); } while(0)
-#endif
-
 /* Returns whether matches rule or not. */
 static inline int
 ip_packet_match(const struct iphdr *ip,
@@ -234,7 +197,8 @@ int do_match(struct ipt_entry_match *m,
 	     int *hotdrop)
 {
 	/* Stop iteration if it doesn't match */
-	if (!m->u.kernel.match->match(skb, in, out, m->data, offset, hotdrop))
+	if (!m->u.kernel.match->match(skb, in, out, m->data, offset, 
+	    skb->nh.iph->ihl*4, hotdrop))
 		return 1;
 	else
 		return 0;
@@ -265,6 +229,7 @@ ipt_do_table(struct sk_buff **pskb,
 	const char *indev, *outdev;
 	void *table_base;
 	struct ipt_entry *e, *back;
+	struct xt_table_info *private = table->private;
 
 	/* Initialization */
 	ip = (*pskb)->nh.iph;
@@ -281,24 +246,11 @@ ipt_do_table(struct sk_buff **pskb,
 
 	read_lock_bh(&table->lock);
 	IP_NF_ASSERT(table->valid_hooks & (1 << hook));
-	table_base = (void *)table->private->entries[smp_processor_id()];
-	e = get_entry(table_base, table->private->hook_entry[hook]);
-
-#ifdef CONFIG_NETFILTER_DEBUG
-	/* Check noone else using our table */
-	if (((struct ipt_entry *)table_base)->comefrom != 0xdead57ac
-	    && ((struct ipt_entry *)table_base)->comefrom != 0xeeeeeeec) {
-		printk("ASSERT: CPU #%u, %s comefrom(%p) = %X\n",
-		       smp_processor_id(),
-		       table->name,
-		       &((struct ipt_entry *)table_base)->comefrom,
-		       ((struct ipt_entry *)table_base)->comefrom);
-	}
-	((struct ipt_entry *)table_base)->comefrom = 0x57acc001;
-#endif
+	table_base = (void *)private->entries[smp_processor_id()];
+	e = get_entry(table_base, private->hook_entry[hook]);
 
 	/* For return from builtin chain */
-	back = get_entry(table_base, table->private->underflow[hook]);
+	back = get_entry(table_base, private->underflow[hook]);
 
 	do {
 		IP_NF_ASSERT(e);
@@ -384,9 +336,6 @@ ipt_do_table(struct sk_buff **pskb,
 		}
 	} while (!hotdrop);
 
-#ifdef CONFIG_NETFILTER_DEBUG
-	((struct ipt_entry *)table_base)->comefrom = 0xdead57ac;
-#endif
 	read_unlock_bh(&table->lock);
 
 #ifdef DEBUG_ALLOW_ALL
@@ -398,145 +347,6 @@ ipt_do_table(struct sk_buff **pskb,
 #endif
 }
 
-/*
- * These are weird, but module loading must not be done with mutex
- * held (since they will register), and we have to have a single
- * function to use try_then_request_module().
- */
-
-/* Find table by name, grabs mutex & ref.  Returns ERR_PTR() on error. */
-static inline struct ipt_table *find_table_lock(const char *name)
-{
-	struct ipt_table *t;
-
-	if (down_interruptible(&ipt_mutex) != 0)
-		return ERR_PTR(-EINTR);
-
-	list_for_each_entry(t, &ipt_tables, list)
-		if (strcmp(t->name, name) == 0 && try_module_get(t->me))
-			return t;
-	up(&ipt_mutex);
-	return NULL;
-}
-
-/* Find match, grabs ref.  Returns ERR_PTR() on error. */
-static inline struct ipt_match *find_match(const char *name, u8 revision)
-{
-	struct ipt_match *m;
-	int err = 0;
-
-	if (down_interruptible(&ipt_mutex) != 0)
-		return ERR_PTR(-EINTR);
-
-	list_for_each_entry(m, &ipt_match, list) {
-		if (strcmp(m->name, name) == 0) {
-			if (m->revision == revision) {
-				if (try_module_get(m->me)) {
-					up(&ipt_mutex);
-					return m;
-				}
-			} else
-				err = -EPROTOTYPE; /* Found something. */
-		}
-	}
-	up(&ipt_mutex);
-	return ERR_PTR(err);
-}
-
-/* Find target, grabs ref.  Returns ERR_PTR() on error. */
-static inline struct ipt_target *find_target(const char *name, u8 revision)
-{
-	struct ipt_target *t;
-	int err = 0;
-
-	if (down_interruptible(&ipt_mutex) != 0)
-		return ERR_PTR(-EINTR);
-
-	list_for_each_entry(t, &ipt_target, list) {
-		if (strcmp(t->name, name) == 0) {
-			if (t->revision == revision) {
-				if (try_module_get(t->me)) {
-					up(&ipt_mutex);
-					return t;
-				}
-			} else
-				err = -EPROTOTYPE; /* Found something. */
-		}
-	}
-	up(&ipt_mutex);
-	return ERR_PTR(err);
-}
-
-struct ipt_target *ipt_find_target(const char *name, u8 revision)
-{
-	struct ipt_target *target;
-
-	target = try_then_request_module(find_target(name, revision),
-					 "ipt_%s", name);
-	if (IS_ERR(target) || !target)
-		return NULL;
-	return target;
-}
-
-static int match_revfn(const char *name, u8 revision, int *bestp)
-{
-	struct ipt_match *m;
-	int have_rev = 0;
-
-	list_for_each_entry(m, &ipt_match, list) {
-		if (strcmp(m->name, name) == 0) {
-			if (m->revision > *bestp)
-				*bestp = m->revision;
-			if (m->revision == revision)
-				have_rev = 1;
-		}
-	}
-	return have_rev;
-}
-
-static int target_revfn(const char *name, u8 revision, int *bestp)
-{
-	struct ipt_target *t;
-	int have_rev = 0;
-
-	list_for_each_entry(t, &ipt_target, list) {
-		if (strcmp(t->name, name) == 0) {
-			if (t->revision > *bestp)
-				*bestp = t->revision;
-			if (t->revision == revision)
-				have_rev = 1;
-		}
-	}
-	return have_rev;
-}
-
-/* Returns true or false (if no such extension at all) */
-static inline int find_revision(const char *name, u8 revision,
-				int (*revfn)(const char *, u8, int *),
-				int *err)
-{
-	int have_rev, best = -1;
-
-	if (down_interruptible(&ipt_mutex) != 0) {
-		*err = -EINTR;
-		return 1;
-	}
-	have_rev = revfn(name, revision, &best);
-	up(&ipt_mutex);
-
-	/* Nothing at all?  Return 0 to try loading module. */
-	if (best == -1) {
-		*err = -ENOENT;
-		return 0;
-	}
-
-	*err = best;
-	if (!have_rev)
-		*err = -EPROTONOSUPPORT;
-	return 1;
-}
-
-
 /* All zeroes == unconditional rule. */
 static inline int
 unconditional(const struct ipt_ip *ip)
@@ -553,7 +363,7 @@ unconditional(const struct ipt_ip *ip)
 /* Figures out from what hook each rule can be called: returns 0 if
    there are loops.  Puts hook bitmask in comefrom. */
 static int
-mark_source_chains(struct ipt_table_info *newinfo,
+mark_source_chains(struct xt_table_info *newinfo,
 		   unsigned int valid_hooks, void *entry0)
 {
 	unsigned int hook;
@@ -699,7 +509,7 @@ check_match(struct ipt_entry_match *m,
 {
 	struct ipt_match *match;
 
-	match = try_then_request_module(find_match(m->u.user.name,
+	match = try_then_request_module(xt_find_match(AF_INET, m->u.user.name,
 						   m->u.user.revision),
 					"ipt_%s", m->u.user.name);
 	if (IS_ERR(match) || !match) {
@@ -744,7 +554,8 @@ check_entry(struct ipt_entry *e, const char *name, unsigned int size,
 		goto cleanup_matches;
 
 	t = ipt_get_target(e);
-	target = try_then_request_module(find_target(t->u.user.name,
+	target = try_then_request_module(xt_find_target(AF_INET,
+						     t->u.user.name,
 						     t->u.user.revision),
 					 "ipt_%s", t->u.user.name);
 	if (IS_ERR(target) || !target) {
@@ -781,7 +592,7 @@ check_entry(struct ipt_entry *e, const char *name, unsigned int size,
 
 static inline int
 check_entry_size_and_hooks(struct ipt_entry *e,
-			   struct ipt_table_info *newinfo,
+			   struct xt_table_info *newinfo,
 			   unsigned char *base,
 			   unsigned char *limit,
 			   const unsigned int *hook_entries,
@@ -815,7 +626,7 @@ check_entry_size_and_hooks(struct ipt_entry *e,
            < 0 (not IPT_RETURN). --RR */
 
 	/* Clear counters and comefrom */
-	e->counters = ((struct ipt_counters) { 0, 0 });
+	e->counters = ((struct xt_counters) { 0, 0 });
 	e->comefrom = 0;
 
 	(*i)++;
@@ -845,7 +656,7 @@ cleanup_entry(struct ipt_entry *e, unsigned int *i)
 static int
 translate_table(const char *name,
 		unsigned int valid_hooks,
-		struct ipt_table_info *newinfo,
+		struct xt_table_info *newinfo,
 		void *entry0,
 		unsigned int size,
 		unsigned int number,
@@ -922,48 +733,10 @@ translate_table(const char *name,
 	return ret;
 }
 
-static struct ipt_table_info *
-replace_table(struct ipt_table *table,
-	      unsigned int num_counters,
-	      struct ipt_table_info *newinfo,
-	      int *error)
-{
-	struct ipt_table_info *oldinfo;
-
-#ifdef CONFIG_NETFILTER_DEBUG
-	{
-		int cpu;
-
-		for_each_cpu(cpu) {
-			struct ipt_entry *table_base = newinfo->entries[cpu];
-			if (table_base)
-				table_base->comefrom = 0xdead57ac;
-		}
-	}
-#endif
-
-	/* Do the substitution. */
-	write_lock_bh(&table->lock);
-	/* Check inside lock: is the old number correct? */
-	if (num_counters != table->private->number) {
-		duprintf("num_counters != table->private->number (%u/%u)\n",
-			 num_counters, table->private->number);
-		write_unlock_bh(&table->lock);
-		*error = -EAGAIN;
-		return NULL;
-	}
-	oldinfo = table->private;
-	table->private = newinfo;
-	newinfo->initial_entries = oldinfo->initial_entries;
-	write_unlock_bh(&table->lock);
-
-	return oldinfo;
-}
-
 /* Gets counters. */
 static inline int
 add_entry_to_counter(const struct ipt_entry *e,
-		     struct ipt_counters total[],
+		     struct xt_counters total[],
 		     unsigned int *i)
 {
 	ADD_COUNTER(total[*i], e->counters.bcnt, e->counters.pcnt);
@@ -984,8 +757,8 @@ set_entry_to_counter(const struct ipt_entry *e,
 }
 
 static void
-get_counters(const struct ipt_table_info *t,
-	     struct ipt_counters counters[])
+get_counters(const struct xt_table_info *t,
+	     struct xt_counters counters[])
 {
 	unsigned int cpu;
 	unsigned int i;
@@ -1024,14 +797,15 @@ copy_entries_to_user(unsigned int total_size,
 {
 	unsigned int off, num, countersize;
 	struct ipt_entry *e;
-	struct ipt_counters *counters;
+	struct xt_counters *counters;
+	struct xt_table_info *private = table->private;
 	int ret = 0;
 	void *loc_cpu_entry;
 
 	/* We need atomic snapshot of counters: rest doesn't change
 	   (other than comefrom, which userspace doesn't care
 	   about). */
-	countersize = sizeof(struct ipt_counters) * table->private->number;
+	countersize = sizeof(struct xt_counters) * private->number;
 	counters = vmalloc_node(countersize, numa_node_id());
 
 	if (counters == NULL)
@@ -1039,14 +813,14 @@ copy_entries_to_user(unsigned int total_size,
 
 	/* First, sum counters... */
 	write_lock_bh(&table->lock);
-	get_counters(table->private, counters);
+	get_counters(private, counters);
 	write_unlock_bh(&table->lock);
 
 	/* choose the copy that is on our node/cpu, ...
 	 * This choice is lazy (because current thread is
 	 * allowed to migrate to another cpu)
 	 */
-	loc_cpu_entry = table->private->entries[raw_smp_processor_id()];
+	loc_cpu_entry = private->entries[raw_smp_processor_id()];
 	/* ... then copy entire thing ... */
 	if (copy_to_user(userptr, loc_cpu_entry, total_size) != 0) {
 		ret = -EFAULT;
@@ -1108,74 +882,36 @@ get_entries(const struct ipt_get_entries *entries,
 	int ret;
 	struct ipt_table *t;
 
-	t = find_table_lock(entries->name);
+	t = xt_find_table_lock(AF_INET, entries->name);
 	if (t && !IS_ERR(t)) {
+		struct xt_table_info *private = t->private;
 		duprintf("t->private->number = %u\n",
-			 t->private->number);
-		if (entries->size == t->private->size)
-			ret = copy_entries_to_user(t->private->size,
+			 private->number);
+		if (entries->size == private->size)
+			ret = copy_entries_to_user(private->size,
 						   t, uptr->entrytable);
 		else {
 			duprintf("get_entries: I've got %u not %u!\n",
-				 t->private->size,
+				 private->size,
 				 entries->size);
 			ret = -EINVAL;
 		}
 		module_put(t->me);
-		up(&ipt_mutex);
+		xt_table_unlock(t);
 	} else
 		ret = t ? PTR_ERR(t) : -ENOENT;
 
 	return ret;
 }
 
-static void free_table_info(struct ipt_table_info *info)
-{
-	int cpu;
-	for_each_cpu(cpu) {
-		if (info->size <= PAGE_SIZE)
-			kfree(info->entries[cpu]);
-		else
-			vfree(info->entries[cpu]);
-	}
-	kfree(info);
-}
-
-static struct ipt_table_info *alloc_table_info(unsigned int size)
-{
-	struct ipt_table_info *newinfo;
-	int cpu;
-
-	newinfo = kzalloc(sizeof(struct ipt_table_info), GFP_KERNEL);
-	if (!newinfo)
-		return NULL;
-
-	newinfo->size = size;
-
-	for_each_cpu(cpu) {
-		if (size <= PAGE_SIZE)
-			newinfo->entries[cpu] = kmalloc_node(size,
-				GFP_KERNEL,
-				cpu_to_node(cpu));
-		else
-			newinfo->entries[cpu] = vmalloc_node(size, cpu_to_node(cpu));
-		if (newinfo->entries[cpu] == 0) {
-			free_table_info(newinfo);
-			return NULL;
-		}
-	}
-
-	return newinfo;
-}
-
 static int
 do_replace(void __user *user, unsigned int len)
 {
 	int ret;
 	struct ipt_replace tmp;
 	struct ipt_table *t;
-	struct ipt_table_info *newinfo, *oldinfo;
-	struct ipt_counters *counters;
+	struct xt_table_info *newinfo, *oldinfo;
+	struct xt_counters *counters;
 	void *loc_cpu_entry, *loc_cpu_old_entry;
 
 	if (copy_from_user(&tmp, user, sizeof(tmp)) != 0)
@@ -1185,11 +921,7 @@ do_replace(void __user *user, unsigned int len)
 	if (len != sizeof(tmp) + tmp.size)
 		return -ENOPROTOOPT;
 
-	/* Pedantry: prevent them from hitting BUG() in vmalloc.c --RR */
-	if ((SMP_ALIGN(tmp.size) >> PAGE_SHIFT) + 2 > num_physpages)
-		return -ENOMEM;
-
-	newinfo = alloc_table_info(tmp.size);
+	newinfo = xt_alloc_table_info(tmp.size);
 	if (!newinfo)
 		return -ENOMEM;
 
@@ -1201,7 +933,7 @@ do_replace(void __user *user, unsigned int len)
 		goto free_newinfo;
 	}
 
-	counters = vmalloc(tmp.num_counters * sizeof(struct ipt_counters));
+	counters = vmalloc(tmp.num_counters * sizeof(struct xt_counters));
 	if (!counters) {
 		ret = -ENOMEM;
 		goto free_newinfo;
@@ -1215,7 +947,7 @@ do_replace(void __user *user, unsigned int len)
 
 	duprintf("ip_tables: Translated table\n");
 
-	t = try_then_request_module(find_table_lock(tmp.name),
+	t = try_then_request_module(xt_find_table_lock(AF_INET, tmp.name),
 				    "iptable_%s", tmp.name);
 	if (!t || IS_ERR(t)) {
 		ret = t ? PTR_ERR(t) : -ENOENT;
@@ -1230,7 +962,7 @@ do_replace(void __user *user, unsigned int len)
 		goto put_module;
 	}
 
-	oldinfo = replace_table(t, tmp.num_counters, newinfo, &ret);
+	oldinfo = xt_replace_table(t, tmp.num_counters, newinfo, &ret);
 	if (!oldinfo)
 		goto put_module;
 
@@ -1249,23 +981,23 @@ do_replace(void __user *user, unsigned int len)
 	/* Decrease module usage counts and free resource */
 	loc_cpu_old_entry = oldinfo->entries[raw_smp_processor_id()];
 	IPT_ENTRY_ITERATE(loc_cpu_old_entry, oldinfo->size, cleanup_entry,NULL);
-	free_table_info(oldinfo);
+	xt_free_table_info(oldinfo);
 	if (copy_to_user(tmp.counters, counters,
-			 sizeof(struct ipt_counters) * tmp.num_counters) != 0)
+			 sizeof(struct xt_counters) * tmp.num_counters) != 0)
 		ret = -EFAULT;
 	vfree(counters);
-	up(&ipt_mutex);
+	xt_table_unlock(t);
 	return ret;
 
  put_module:
 	module_put(t->me);
-	up(&ipt_mutex);
+	xt_table_unlock(t);
  free_newinfo_counters_untrans:
 	IPT_ENTRY_ITERATE(loc_cpu_entry, newinfo->size, cleanup_entry,NULL);
  free_newinfo_counters:
 	vfree(counters);
  free_newinfo:
-	free_table_info(newinfo);
+	xt_free_table_info(newinfo);
 	return ret;
 }
 
@@ -1273,7 +1005,7 @@ do_replace(void __user *user, unsigned int len)
  * and everything is OK. */
 static inline int
 add_counter_to_entry(struct ipt_entry *e,
-		     const struct ipt_counters addme[],
+		     const struct xt_counters addme[],
 		     unsigned int *i)
 {
 #if 0
@@ -1295,15 +1027,16 @@ static int
 do_add_counters(void __user *user, unsigned int len)
 {
 	unsigned int i;
-	struct ipt_counters_info tmp, *paddc;
+	struct xt_counters_info tmp, *paddc;
 	struct ipt_table *t;
+	struct xt_table_info *private;
 	int ret = 0;
 	void *loc_cpu_entry;
 
 	if (copy_from_user(&tmp, user, sizeof(tmp)) != 0)
 		return -EFAULT;
 
-	if (len != sizeof(tmp) + tmp.num_counters*sizeof(struct ipt_counters))
+	if (len != sizeof(tmp) + tmp.num_counters*sizeof(struct xt_counters))
 		return -EINVAL;
 
 	paddc = vmalloc_node(len, numa_node_id());
@@ -1315,29 +1048,30 @@ do_add_counters(void __user *user, unsigned int len)
 		goto free;
 	}
 
-	t = find_table_lock(tmp.name);
+	t = xt_find_table_lock(AF_INET, tmp.name);
 	if (!t || IS_ERR(t)) {
 		ret = t ? PTR_ERR(t) : -ENOENT;
 		goto free;
 	}
 
 	write_lock_bh(&t->lock);
-	if (t->private->number != paddc->num_counters) {
+	private = t->private;
+	if (private->number != paddc->num_counters) {
 		ret = -EINVAL;
 		goto unlock_up_free;
 	}
 
 	i = 0;
 	/* Choose the copy that is on our node */
-	loc_cpu_entry = t->private->entries[raw_smp_processor_id()];
+	loc_cpu_entry = private->entries[raw_smp_processor_id()];
 	IPT_ENTRY_ITERATE(loc_cpu_entry,
-			  t->private->size,
+			  private->size,
 			  add_counter_to_entry,
 			  paddc->counters,
 			  &i);
  unlock_up_free:
 	write_unlock_bh(&t->lock);
-	up(&ipt_mutex);
+	xt_table_unlock(t);
 	module_put(t->me);
  free:
 	vfree(paddc);
@@ -1396,25 +1130,26 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 		}
 		name[IPT_TABLE_MAXNAMELEN-1] = '\0';
 
-		t = try_then_request_module(find_table_lock(name),
+		t = try_then_request_module(xt_find_table_lock(AF_INET, name),
 					    "iptable_%s", name);
 		if (t && !IS_ERR(t)) {
 			struct ipt_getinfo info;
+			struct xt_table_info *private = t->private;
 
 			info.valid_hooks = t->valid_hooks;
-			memcpy(info.hook_entry, t->private->hook_entry,
+			memcpy(info.hook_entry, private->hook_entry,
 			       sizeof(info.hook_entry));
-			memcpy(info.underflow, t->private->underflow,
+			memcpy(info.underflow, private->underflow,
 			       sizeof(info.underflow));
-			info.num_entries = t->private->number;
-			info.size = t->private->size;
+			info.num_entries = private->number;
+			info.size = private->size;
 			memcpy(info.name, name, sizeof(info.name));
 
 			if (copy_to_user(user, &info, *len) != 0)
 				ret = -EFAULT;
 			else
 				ret = 0;
-			up(&ipt_mutex);
+			xt_table_unlock(t);
 			module_put(t->me);
 		} else
 			ret = t ? PTR_ERR(t) : -ENOENT;
@@ -1441,7 +1176,7 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 	case IPT_SO_GET_REVISION_MATCH:
 	case IPT_SO_GET_REVISION_TARGET: {
 		struct ipt_get_revision rev;
-		int (*revfn)(const char *, u8, int *);
+		int target;
 
 		if (*len != sizeof(rev)) {
 			ret = -EINVAL;
@@ -1453,12 +1188,13 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 		}
 
 		if (cmd == IPT_SO_GET_REVISION_TARGET)
-			revfn = target_revfn;
+			target = 1;
 		else
-			revfn = match_revfn;
+			target = 0;
 
-		try_then_request_module(find_revision(rev.name, rev.revision,
-						      revfn, &ret),
+		try_then_request_module(xt_find_revision(AF_INET, rev.name,
+							 rev.revision,
+							 target, &ret),
 					"ipt_%s", rev.name);
 		break;
 	}
@@ -1471,60 +1207,15 @@ do_ipt_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
 	return ret;
 }
 
-/* Registration hooks for targets. */
-int
-ipt_register_target(struct ipt_target *target)
+int ipt_register_table(struct xt_table *table, const struct ipt_replace *repl)
 {
 	int ret;
-
-	ret = down_interruptible(&ipt_mutex);
-	if (ret != 0)
-		return ret;
-	list_add(&target->list, &ipt_target);
-	up(&ipt_mutex);
-	return ret;
-}
-
-void
-ipt_unregister_target(struct ipt_target *target)
-{
-	down(&ipt_mutex);
-	LIST_DELETE(&ipt_target, target);
-	up(&ipt_mutex);
-}
-
-int
-ipt_register_match(struct ipt_match *match)
-{
-	int ret;
-
-	ret = down_interruptible(&ipt_mutex);
-	if (ret != 0)
-		return ret;
-
-	list_add(&match->list, &ipt_match);
-	up(&ipt_mutex);
-
-	return ret;
-}
-
-void
-ipt_unregister_match(struct ipt_match *match)
-{
-	down(&ipt_mutex);
-	LIST_DELETE(&ipt_match, match);
-	up(&ipt_mutex);
-}
-
-int ipt_register_table(struct ipt_table *table, const struct ipt_replace *repl)
-{
-	int ret;
-	struct ipt_table_info *newinfo;
-	static struct ipt_table_info bootstrap
+	struct xt_table_info *newinfo;
+	static struct xt_table_info bootstrap
 		= { 0, 0, 0, { 0 }, { 0 }, { } };
 	void *loc_cpu_entry;
 
-	newinfo = alloc_table_info(repl->size);
+	newinfo = xt_alloc_table_info(repl->size);
 	if (!newinfo)
 		return -ENOMEM;
 
@@ -1540,246 +1231,29 @@ int ipt_register_table(struct ipt_table *table, const struct ipt_replace *repl)
 			      repl->hook_entry,
 			      repl->underflow);
 	if (ret != 0) {
-		free_table_info(newinfo);
+		xt_free_table_info(newinfo);
 		return ret;
 	}
 
-	ret = down_interruptible(&ipt_mutex);
-	if (ret != 0) {
-		free_table_info(newinfo);
+	if (xt_register_table(table, &bootstrap, newinfo) != 0) {
+		xt_free_table_info(newinfo);
 		return ret;
 	}
 
-	/* Don't autoload: we'd eat our tail... */
-	if (list_named_find(&ipt_tables, table->name)) {
-		ret = -EEXIST;
-		goto free_unlock;
-	}
-
-	/* Simplifies replace_table code. */
-	table->private = &bootstrap;
-	if (!replace_table(table, 0, newinfo, &ret))
-		goto free_unlock;
-
-	duprintf("table->private->number = %u\n",
-		 table->private->number);
-	
-	/* save number of initial entries */
-	table->private->initial_entries = table->private->number;
-
-	rwlock_init(&table->lock);
-	list_prepend(&ipt_tables, table);
-
- unlock:
-	up(&ipt_mutex);
-	return ret;
-
- free_unlock:
-	free_table_info(newinfo);
-	goto unlock;
+	return 0;
 }
 
 void ipt_unregister_table(struct ipt_table *table)
 {
+	struct xt_table_info *private;
 	void *loc_cpu_entry;
 
-	down(&ipt_mutex);
-	LIST_DELETE(&ipt_tables, table);
-	up(&ipt_mutex);
+ 	private = xt_unregister_table(table);
 
 	/* Decrease module usage counts and free resources */
-	loc_cpu_entry = table->private->entries[raw_smp_processor_id()];
-	IPT_ENTRY_ITERATE(loc_cpu_entry, table->private->size,
-			  cleanup_entry, NULL);
-	free_table_info(table->private);
-}
-
-/* Returns 1 if the port is matched by the range, 0 otherwise */
-static inline int
-port_match(u_int16_t min, u_int16_t max, u_int16_t port, int invert)
-{
-	int ret;
-
-	ret = (port >= min && port <= max) ^ invert;
-	return ret;
-}
-
-static int
-tcp_find_option(u_int8_t option,
-		const struct sk_buff *skb,
-		unsigned int optlen,
-		int invert,
-		int *hotdrop)
-{
-	/* tcp.doff is only 4 bits, ie. max 15 * 4 bytes */
-	u_int8_t _opt[60 - sizeof(struct tcphdr)], *op;
-	unsigned int i;
-
-	duprintf("tcp_match: finding option\n");
-
-	if (!optlen)
-		return invert;
-
-	/* If we don't have the whole header, drop packet. */
-	op = skb_header_pointer(skb,
-				skb->nh.iph->ihl*4 + sizeof(struct tcphdr),
-				optlen, _opt);
-	if (op == NULL) {
-		*hotdrop = 1;
-		return 0;
-	}
-
-	for (i = 0; i < optlen; ) {
-		if (op[i] == option) return !invert;
-		if (op[i] < 2) i++;
-		else i += op[i+1]?:1;
-	}
-
-	return invert;
-}
-
-static int
-tcp_match(const struct sk_buff *skb,
-	  const struct net_device *in,
-	  const struct net_device *out,
-	  const void *matchinfo,
-	  int offset,
-	  int *hotdrop)
-{
-	struct tcphdr _tcph, *th;
-	const struct ipt_tcp *tcpinfo = matchinfo;
-
-	if (offset) {
-		/* To quote Alan:
-
-		   Don't allow a fragment of TCP 8 bytes in. Nobody normal
-		   causes this. Its a cracker trying to break in by doing a
-		   flag overwrite to pass the direction checks.
-		*/
-		if (offset == 1) {
-			duprintf("Dropping evil TCP offset=1 frag.\n");
-			*hotdrop = 1;
-		}
-		/* Must not be a fragment. */
-		return 0;
-	}
-
-#define FWINVTCP(bool,invflg) ((bool) ^ !!(tcpinfo->invflags & invflg))
-
-	th = skb_header_pointer(skb, skb->nh.iph->ihl*4,
-				sizeof(_tcph), &_tcph);
-	if (th == NULL) {
-		/* We've been asked to examine this packet, and we
-		   can't.  Hence, no choice but to drop. */
-		duprintf("Dropping evil TCP offset=0 tinygram.\n");
-		*hotdrop = 1;
-		return 0;
-	}
-
-	if (!port_match(tcpinfo->spts[0], tcpinfo->spts[1],
-			ntohs(th->source),
-			!!(tcpinfo->invflags & IPT_TCP_INV_SRCPT)))
-		return 0;
-	if (!port_match(tcpinfo->dpts[0], tcpinfo->dpts[1],
-			ntohs(th->dest),
-			!!(tcpinfo->invflags & IPT_TCP_INV_DSTPT)))
-		return 0;
-	if (!FWINVTCP((((unsigned char *)th)[13] & tcpinfo->flg_mask)
-		      == tcpinfo->flg_cmp,
-		      IPT_TCP_INV_FLAGS))
-		return 0;
-	if (tcpinfo->option) {
-		if (th->doff * 4 < sizeof(_tcph)) {
-			*hotdrop = 1;
-			return 0;
-		}
-		if (!tcp_find_option(tcpinfo->option, skb,
-				     th->doff*4 - sizeof(_tcph),
-				     tcpinfo->invflags & IPT_TCP_INV_OPTION,
-				     hotdrop))
-			return 0;
-	}
-	return 1;
-}
-
-/* Called when user tries to insert an entry of this type. */
-static int
-tcp_checkentry(const char *tablename,
-	       const struct ipt_ip *ip,
-	       void *matchinfo,
-	       unsigned int matchsize,
-	       unsigned int hook_mask)
-{
-	const struct ipt_tcp *tcpinfo = matchinfo;
-
-	/* Must specify proto == TCP, and no unknown invflags */
-	return ip->proto == IPPROTO_TCP
-		&& !(ip->invflags & IPT_INV_PROTO)
-		&& matchsize == IPT_ALIGN(sizeof(struct ipt_tcp))
-		&& !(tcpinfo->invflags & ~IPT_TCP_INV_MASK);
-}
-
-static int
-udp_match(const struct sk_buff *skb,
-	  const struct net_device *in,
-	  const struct net_device *out,
-	  const void *matchinfo,
-	  int offset,
-	  int *hotdrop)
-{
-	struct udphdr _udph, *uh;
-	const struct ipt_udp *udpinfo = matchinfo;
-
-	/* Must not be a fragment. */
-	if (offset)
-		return 0;
-
-	uh = skb_header_pointer(skb, skb->nh.iph->ihl*4,
-				sizeof(_udph), &_udph);
-	if (uh == NULL) {
-		/* We've been asked to examine this packet, and we
-		   can't.  Hence, no choice but to drop. */
-		duprintf("Dropping evil UDP tinygram.\n");
-		*hotdrop = 1;
-		return 0;
-	}
-
-	return port_match(udpinfo->spts[0], udpinfo->spts[1],
-			  ntohs(uh->source),
-			  !!(udpinfo->invflags & IPT_UDP_INV_SRCPT))
-		&& port_match(udpinfo->dpts[0], udpinfo->dpts[1],
-			      ntohs(uh->dest),
-			      !!(udpinfo->invflags & IPT_UDP_INV_DSTPT));
-}
-
-/* Called when user tries to insert an entry of this type. */
-static int
-udp_checkentry(const char *tablename,
-	       const struct ipt_ip *ip,
-	       void *matchinfo,
-	       unsigned int matchinfosize,
-	       unsigned int hook_mask)
-{
-	const struct ipt_udp *udpinfo = matchinfo;
-
-	/* Must specify proto == UDP, and no unknown invflags */
-	if (ip->proto != IPPROTO_UDP || (ip->invflags & IPT_INV_PROTO)) {
-		duprintf("ipt_udp: Protocol %u != %u\n", ip->proto,
-			 IPPROTO_UDP);
-		return 0;
-	}
-	if (matchinfosize != IPT_ALIGN(sizeof(struct ipt_udp))) {
-		duprintf("ipt_udp: matchsize %u != %u\n",
-			 matchinfosize, IPT_ALIGN(sizeof(struct ipt_udp)));
-		return 0;
-	}
-	if (udpinfo->invflags & ~IPT_UDP_INV_MASK) {
-		duprintf("ipt_udp: unknown flags %X\n",
-			 udpinfo->invflags);
-		return 0;
-	}
-
-	return 1;
+	loc_cpu_entry = private->entries[raw_smp_processor_id()];
+	IPT_ENTRY_ITERATE(loc_cpu_entry, private->size, cleanup_entry, NULL);
+	xt_free_table_info(private);
 }
 
 /* Returns 1 if the type and code is matched by the range, 0 otherwise */
@@ -1798,6 +1272,7 @@ icmp_match(const struct sk_buff *skb,
 	   const struct net_device *out,
 	   const void *matchinfo,
 	   int offset,
+	   unsigned int protoff,
 	   int *hotdrop)
 {
 	struct icmphdr _icmph, *ic;
@@ -1807,8 +1282,7 @@ icmp_match(const struct sk_buff *skb,
 	if (offset)
 		return 0;
 
-	ic = skb_header_pointer(skb, skb->nh.iph->ihl*4,
-				sizeof(_icmph), &_icmph);
+	ic = skb_header_pointer(skb, protoff, sizeof(_icmph), &_icmph);
 	if (ic == NULL) {
 		/* We've been asked to examine this packet, and we
 		 * can't.  Hence, no choice but to drop.
@@ -1828,11 +1302,12 @@ icmp_match(const struct sk_buff *skb,
 /* Called when user tries to insert an entry of this type. */
 static int
 icmp_checkentry(const char *tablename,
-	   const struct ipt_ip *ip,
+	   const void *info,
 	   void *matchinfo,
 	   unsigned int matchsize,
 	   unsigned int hook_mask)
 {
+	const struct ipt_ip *ip = info;
 	const struct ipt_icmp *icmpinfo = matchinfo;
 
 	/* Must specify proto == ICMP, and no unknown invflags */
@@ -1862,123 +1337,22 @@ static struct nf_sockopt_ops ipt_sockopts = {
 	.get		= do_ipt_get_ctl,
 };
 
-static struct ipt_match tcp_matchstruct = {
-	.name		= "tcp",
-	.match		= &tcp_match,
-	.checkentry	= &tcp_checkentry,
-};
-
-static struct ipt_match udp_matchstruct = {
-	.name		= "udp",
-	.match		= &udp_match,
-	.checkentry	= &udp_checkentry,
-};
-
 static struct ipt_match icmp_matchstruct = {
 	.name		= "icmp",
 	.match		= &icmp_match,
 	.checkentry	= &icmp_checkentry,
 };
 
-#ifdef CONFIG_PROC_FS
-static inline int print_name(const char *i,
-			     off_t start_offset, char *buffer, int length,
-			     off_t *pos, unsigned int *count)
-{
-	if ((*count)++ >= start_offset) {
-		unsigned int namelen;
-
-		namelen = sprintf(buffer + *pos, "%s\n",
-				  i + sizeof(struct list_head));
-		if (*pos + namelen > length) {
-			/* Stop iterating */
-			return 1;
-		}
-		*pos += namelen;
-	}
-	return 0;
-}
-
-static inline int print_target(const struct ipt_target *t,
-                               off_t start_offset, char *buffer, int length,
-                               off_t *pos, unsigned int *count)
-{
-	if (t == &ipt_standard_target || t == &ipt_error_target)
-		return 0;
-	return print_name((char *)t, start_offset, buffer, length, pos, count);
-}
-
-static int ipt_get_tables(char *buffer, char **start, off_t offset, int length)
-{
-	off_t pos = 0;
-	unsigned int count = 0;
-
-	if (down_interruptible(&ipt_mutex) != 0)
-		return 0;
-
-	LIST_FIND(&ipt_tables, print_name, void *,
-		  offset, buffer, length, &pos, &count);
-
-	up(&ipt_mutex);
-
-	/* `start' hack - see fs/proc/generic.c line ~105 */
-	*start=(char *)((unsigned long)count-offset);
-	return pos;
-}
-
-static int ipt_get_targets(char *buffer, char **start, off_t offset, int length)
-{
-	off_t pos = 0;
-	unsigned int count = 0;
-
-	if (down_interruptible(&ipt_mutex) != 0)
-		return 0;
-
-	LIST_FIND(&ipt_target, print_target, struct ipt_target *,
-		  offset, buffer, length, &pos, &count);
-	
-	up(&ipt_mutex);
-
-	*start = (char *)((unsigned long)count - offset);
-	return pos;
-}
-
-static int ipt_get_matches(char *buffer, char **start, off_t offset, int length)
-{
-	off_t pos = 0;
-	unsigned int count = 0;
-
-	if (down_interruptible(&ipt_mutex) != 0)
-		return 0;
-	
-	LIST_FIND(&ipt_match, print_name, void *,
-		  offset, buffer, length, &pos, &count);
-
-	up(&ipt_mutex);
-
-	*start = (char *)((unsigned long)count - offset);
-	return pos;
-}
-
-static const struct { char *name; get_info_t *get_info; } ipt_proc_entry[] =
-{ { "ip_tables_names", ipt_get_tables },
-  { "ip_tables_targets", ipt_get_targets },
-  { "ip_tables_matches", ipt_get_matches },
-  { NULL, NULL} };
-#endif /*CONFIG_PROC_FS*/
-
 static int __init init(void)
 {
 	int ret;
 
+	xt_proto_init(AF_INET);
+
 	/* Noone else will be downing sem now, so we won't sleep */
-	down(&ipt_mutex);
-	list_append(&ipt_target, &ipt_standard_target);
-	list_append(&ipt_target, &ipt_error_target);
-	list_append(&ipt_match, &tcp_matchstruct);
-	list_append(&ipt_match, &udp_matchstruct);
-	list_append(&ipt_match, &icmp_matchstruct);
-	up(&ipt_mutex);
+	xt_register_target(AF_INET, &ipt_standard_target);
+	xt_register_target(AF_INET, &ipt_error_target);
+	xt_register_match(AF_INET, &icmp_matchstruct);
 
 	/* Register setsockopt */
 	ret = nf_register_sockopt(&ipt_sockopts);
@@ -1987,49 +1361,23 @@ static int __init init(void)
 		return ret;
 	}
 
-#ifdef CONFIG_PROC_FS
-	{
-	struct proc_dir_entry *proc;
-	int i;
-
-	for (i = 0; ipt_proc_entry[i].name; i++) {
-		proc = proc_net_create(ipt_proc_entry[i].name, 0,
-				       ipt_proc_entry[i].get_info);
-		if (!proc) {
-			while (--i >= 0)
-				proc_net_remove(ipt_proc_entry[i].name);
-			nf_unregister_sockopt(&ipt_sockopts);
-			return -ENOMEM;
-		}
-		proc->owner = THIS_MODULE;
-	}
-	}
-#endif
-
-	printk("ip_tables: (C) 2000-2002 Netfilter core team\n");
+	printk("ip_tables: (C) 2000-2006 Netfilter Core Team\n");
 	return 0;
 }
 
 static void __exit fini(void)
 {
 	nf_unregister_sockopt(&ipt_sockopts);
-#ifdef CONFIG_PROC_FS
-	{
-	int i;
-	for (i = 0; ipt_proc_entry[i].name; i++)
-		proc_net_remove(ipt_proc_entry[i].name);
-	}
-#endif
+
+	xt_unregister_match(AF_INET, &icmp_matchstruct);
+	xt_unregister_target(AF_INET, &ipt_error_target);
+	xt_unregister_target(AF_INET, &ipt_standard_target);
+
+	xt_proto_fini(AF_INET);
 }
 
 EXPORT_SYMBOL(ipt_register_table);
 EXPORT_SYMBOL(ipt_unregister_table);
-EXPORT_SYMBOL(ipt_register_match);
-EXPORT_SYMBOL(ipt_unregister_match);
 EXPORT_SYMBOL(ipt_do_table);
-EXPORT_SYMBOL(ipt_register_target);
-EXPORT_SYMBOL(ipt_unregister_target);
-EXPORT_SYMBOL(ipt_find_target);
-
 module_init(init);
 module_exit(fini);

net/ipv4/netfilter/ipt_CLUSTERIP.c

@@ -379,12 +379,13 @@ target(struct sk_buff **pskb,
 
 static int
 checkentry(const char *tablename,
-	   const struct ipt_entry *e,
+	   const void *e_void,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
 {
 	struct ipt_clusterip_tgt_info *cipinfo = targinfo;
+	const struct ipt_entry *e = e_void;
 
 	struct clusterip_config *config;
 

net/ipv4/netfilter/ipt_DSCP.c

@@ -57,7 +57,7 @@ target(struct sk_buff **pskb,
 
 static int
 checkentry(const char *tablename,
-	   const struct ipt_entry *e,
+	   const void *e_void,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)

net/ipv4/netfilter/ipt_ECN.c

@@ -113,12 +113,13 @@ target(struct sk_buff **pskb,
 
 static int
 checkentry(const char *tablename,
-	   const struct ipt_entry *e,
+	   const void *e_void,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
 {
 	const struct ipt_ECN_info *einfo = (struct ipt_ECN_info *)targinfo;
+	const struct ipt_entry *e = e_void;
 
 	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_ECN_info))) {
 		printk(KERN_WARNING "ECN: targinfosize %u != %Zu\n",

net/ipv4/netfilter/ipt_LOG.c

@@ -431,7 +431,7 @@ ipt_log_target(struct sk_buff **pskb,
 }
 
 static int ipt_log_checkentry(const char *tablename,
-			      const struct ipt_entry *e,
+			      const void *e,
 			      void *targinfo,
 			      unsigned int targinfosize,
 			      unsigned int hook_mask)

net/ipv4/netfilter/ipt_MASQUERADE.c

@@ -40,7 +40,7 @@ static DEFINE_RWLOCK(masq_lock);
 /* FIXME: Multiple targets. --RR */
 static int
 masquerade_check(const char *tablename,
-		 const struct ipt_entry *e,
+		 const void *e,
 		 void *targinfo,
 		 unsigned int targinfosize,
 		 unsigned int hook_mask)

net/ipv4/netfilter/ipt_NETMAP.c

@@ -31,7 +31,7 @@ MODULE_DESCRIPTION("iptables 1:1 NAT mapping of IP networks target");
 
 static int
 check(const char *tablename,
-      const struct ipt_entry *e,
+      const void *e,
       void *targinfo,
       unsigned int targinfosize,
       unsigned int hook_mask)

net/ipv4/netfilter/ipt_NFQUEUE.c

@@ -1,70 +0,0 @@
-/* iptables module for using new netfilter netlink queue
- *
- * (C) 2005 by Harald Welte <laforge@netfilter.org>
- *
- * 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.
- * 
- */
-
-#include <linux/module.h>
-#include <linux/skbuff.h>
-
-#include <linux/netfilter.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_NFQUEUE.h>
-
-MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
-MODULE_DESCRIPTION("iptables NFQUEUE target");
-MODULE_LICENSE("GPL");
-
-static unsigned int
-target(struct sk_buff **pskb,
-       const struct net_device *in,
-       const struct net_device *out,
-       unsigned int hooknum,
-       const void *targinfo,
-       void *userinfo)
-{
-	const struct ipt_NFQ_info *tinfo = targinfo;
-
-	return NF_QUEUE_NR(tinfo->queuenum);
-}
-
-static int
-checkentry(const char *tablename,
-	   const struct ipt_entry *e,
-           void *targinfo,
-           unsigned int targinfosize,
-           unsigned int hook_mask)
-{
-	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_NFQ_info))) {
-		printk(KERN_WARNING "NFQUEUE: targinfosize %u != %Zu\n",
-		       targinfosize,
-		       IPT_ALIGN(sizeof(struct ipt_NFQ_info)));
-		return 0;
-	}
-
-	return 1;
-}
-
-static struct ipt_target ipt_NFQ_reg = {
-	.name		= "NFQUEUE",
-	.target		= target,
-	.checkentry	= checkentry,
-	.me		= THIS_MODULE,
-};
-
-static int __init init(void)
-{
-	return ipt_register_target(&ipt_NFQ_reg);
-}
-
-static void __exit fini(void)
-{
-	ipt_unregister_target(&ipt_NFQ_reg);
-}
-
-module_init(init);
-module_exit(fini);

net/ipv4/netfilter/ipt_REDIRECT.c

@@ -33,7 +33,7 @@ MODULE_DESCRIPTION("iptables REDIRECT target module");
 /* FIXME: Take multiple ranges --RR */
 static int
 redirect_check(const char *tablename,
-	       const struct ipt_entry *e,
+	       const void *e,
 	       void *targinfo,
 	       unsigned int targinfosize,
 	       unsigned int hook_mask)

net/ipv4/netfilter/ipt_REJECT.c

@@ -282,12 +282,13 @@ static unsigned int reject(struct sk_buff **pskb,
 }
 
 static int check(const char *tablename,
-		 const struct ipt_entry *e,
+		 const void *e_void,
 		 void *targinfo,
 		 unsigned int targinfosize,
 		 unsigned int hook_mask)
 {
  	const struct ipt_reject_info *rejinfo = targinfo;
+	const struct ipt_entry *e = e_void;
 
  	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_reject_info))) {
   		DEBUGP("REJECT: targinfosize %u != 0\n", targinfosize);

net/ipv4/netfilter/ipt_SAME.c

@@ -49,7 +49,7 @@ MODULE_DESCRIPTION("iptables special SNAT module for consistent sourceip");
 
 static int
 same_check(const char *tablename,
-	      const struct ipt_entry *e,
+	      const void *e,
 	      void *targinfo,
 	      unsigned int targinfosize,
 	      unsigned int hook_mask)

net/ipv4/netfilter/ipt_TCPMSS.c

@@ -210,12 +210,13 @@ static inline int find_syn_match(const struct ipt_entry_match *m)
 /* Must specify -p tcp --syn/--tcp-flags SYN */
 static int
 ipt_tcpmss_checkentry(const char *tablename,
-		      const struct ipt_entry *e,
+		      const void *e_void,
 		      void *targinfo,
 		      unsigned int targinfosize,
 		      unsigned int hook_mask)
 {
 	const struct ipt_tcpmss_info *tcpmssinfo = targinfo;
+	const struct ipt_entry *e = e_void;
 
 	if (targinfosize != IPT_ALIGN(sizeof(struct ipt_tcpmss_info))) {
 		DEBUGP("ipt_tcpmss_checkentry: targinfosize %u != %u\n",

net/ipv4/netfilter/ipt_TOS.c

@@ -52,7 +52,7 @@ target(struct sk_buff **pskb,
 
 static int
 checkentry(const char *tablename,
-	   const struct ipt_entry *e,
+	   const void *e_void,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)

net/ipv4/netfilter/ipt_TTL.c

@@ -66,7 +66,7 @@ ipt_ttl_target(struct sk_buff **pskb, const struct net_device *in,
 }
 
 static int ipt_ttl_checkentry(const char *tablename,
-		const struct ipt_entry *e,
+		const void *e,
 		void *targinfo,
 		unsigned int targinfosize,
 		unsigned int hook_mask)

net/ipv4/netfilter/ipt_ULOG.c

@@ -330,7 +330,7 @@ static void ipt_logfn(unsigned int pf,
 }
 
 static int ipt_ulog_checkentry(const char *tablename,
-			       const struct ipt_entry *e,
+			       const void *e,
 			       void *targinfo,
 			       unsigned int targinfosize,
 			       unsigned int hookmask)

net/ipv4/netfilter/ipt_addrtype.c

@@ -29,7 +29,7 @@ static inline int match_type(u_int32_t addr, u_int16_t mask)
 
 static int match(const struct sk_buff *skb, const struct net_device *in,
 		 const struct net_device *out, const void *matchinfo,
-		 int offset, int *hotdrop)
+		 int offset, unsigned int protoff, int *hotdrop)
 {
 	const struct ipt_addrtype_info *info = matchinfo;
 	const struct iphdr *iph = skb->nh.iph;
@@ -43,7 +43,7 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
 	return ret;
 }
 
-static int checkentry(const char *tablename, const struct ipt_ip *ip,
+static int checkentry(const char *tablename, const void *ip,
 		      void *matchinfo, unsigned int matchsize,
 		      unsigned int hook_mask)
 {

net/ipv4/netfilter/ipt_ah.c

@@ -41,6 +41,7 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
 	struct ip_auth_hdr _ahdr, *ah;
@@ -50,7 +51,7 @@ match(const struct sk_buff *skb,
 	if (offset)
 		return 0;
 
-	ah = skb_header_pointer(skb, skb->nh.iph->ihl * 4,
+	ah = skb_header_pointer(skb, protoff,
 				sizeof(_ahdr), &_ahdr);
 	if (ah == NULL) {
 		/* We've been asked to examine this packet, and we
@@ -69,12 +70,13 @@ match(const struct sk_buff *skb,
 /* Called when user tries to insert an entry of this type. */
 static int
 checkentry(const char *tablename,
-	   const struct ipt_ip *ip,
+	   const void *ip_void,
 	   void *matchinfo,
 	   unsigned int matchinfosize,
 	   unsigned int hook_mask)
 {
 	const struct ipt_ah *ahinfo = matchinfo;
+	const struct ipt_ip *ip = ip_void;
 
 	/* Must specify proto == AH, and no unknown invflags */
 	if (ip->proto != IPPROTO_AH || (ip->invflags & IPT_INV_PROTO)) {

net/ipv4/netfilter/ipt_dscp.c

@@ -21,7 +21,7 @@ MODULE_LICENSE("GPL");
 
 static int match(const struct sk_buff *skb, const struct net_device *in,
 		 const struct net_device *out, const void *matchinfo,
-		 int offset, int *hotdrop)
+		 int offset, unsigned int protoff, int *hotdrop)
 {
 	const struct ipt_dscp_info *info = matchinfo;
 	const struct iphdr *iph = skb->nh.iph;
@@ -31,7 +31,7 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
 	return ((iph->tos&IPT_DSCP_MASK) == sh_dscp) ^ info->invert;
 }
 
-static int checkentry(const char *tablename, const struct ipt_ip *ip,
+static int checkentry(const char *tablename, const void *ip,
 		      void *matchinfo, unsigned int matchsize,
 		      unsigned int hook_mask)
 {

net/ipv4/netfilter/ipt_ecn.c

@@ -67,7 +67,7 @@ static inline int match_tcp(const struct sk_buff *skb,
 
 static int match(const struct sk_buff *skb, const struct net_device *in,
 		 const struct net_device *out, const void *matchinfo,
-		 int offset, int *hotdrop)
+		 int offset, unsigned int protoff, int *hotdrop)
 {
 	const struct ipt_ecn_info *info = matchinfo;
 
@@ -85,11 +85,12 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
 	return 1;
 }
 
-static int checkentry(const char *tablename, const struct ipt_ip *ip,
+static int checkentry(const char *tablename, const void *ip_void,
 		      void *matchinfo, unsigned int matchsize,
 		      unsigned int hook_mask)
 {
 	const struct ipt_ecn_info *info = matchinfo;
+	const struct ipt_ip *ip = ip_void;
 
 	if (matchsize != IPT_ALIGN(sizeof(struct ipt_ecn_info)))
 		return 0;

net/ipv4/netfilter/ipt_esp.c

@@ -42,6 +42,7 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
 	struct ip_esp_hdr _esp, *eh;
@@ -51,7 +52,7 @@ match(const struct sk_buff *skb,
 	if (offset)
 		return 0;
 
-	eh = skb_header_pointer(skb, skb->nh.iph->ihl * 4,
+	eh = skb_header_pointer(skb, protoff,
 				sizeof(_esp), &_esp);
 	if (eh == NULL) {
 		/* We've been asked to examine this packet, and we
@@ -70,12 +71,13 @@ match(const struct sk_buff *skb,
 /* Called when user tries to insert an entry of this type. */
 static int
 checkentry(const char *tablename,
-	   const struct ipt_ip *ip,
+	   const void *ip_void,
 	   void *matchinfo,
 	   unsigned int matchinfosize,
 	   unsigned int hook_mask)
 {
 	const struct ipt_esp *espinfo = matchinfo;
+	const struct ipt_ip *ip = ip_void;
 
 	/* Must specify proto == ESP, and no unknown invflags */
 	if (ip->proto != IPPROTO_ESP || (ip->invflags & IPT_INV_PROTO)) {

net/ipv4/netfilter/ipt_hashlimit.c

@@ -429,6 +429,7 @@ hashlimit_match(const struct sk_buff *skb,
 		const struct net_device *out,
 		const void *matchinfo,
 		int offset,
+		unsigned int protoff,
 		int *hotdrop)
 {
 	struct ipt_hashlimit_info *r = 
@@ -504,7 +505,7 @@ hashlimit_match(const struct sk_buff *skb,
 
 static int
 hashlimit_checkentry(const char *tablename,
-		     const struct ipt_ip *ip,
+		     const void *inf,
 		     void *matchinfo,
 		     unsigned int matchsize,
 		     unsigned int hook_mask)

net/ipv4/netfilter/ipt_iprange.c

@@ -28,7 +28,7 @@ match(const struct sk_buff *skb,
       const struct net_device *in,
       const struct net_device *out,
       const void *matchinfo,
-      int offset, int *hotdrop)
+      int offset, unsigned int protoff, int *hotdrop)
 {
 	const struct ipt_iprange_info *info = matchinfo;
 	const struct iphdr *iph = skb->nh.iph;
@@ -63,7 +63,7 @@ match(const struct sk_buff *skb,
 }
 
 static int check(const char *tablename,
-		 const struct ipt_ip *ip,
+		 const void *inf,
 		 void *matchinfo,
 		 unsigned int matchsize,
 		 unsigned int hook_mask)

net/ipv4/netfilter/ipt_length.c

@@ -1,64 +0,0 @@
-/* Kernel module to match packet length. */
-/* (C) 1999-2001 James Morris <jmorros@intercode.com.au>
- *
- * 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.
- */
-
-#include <linux/module.h>
-#include <linux/skbuff.h>
-
-#include <linux/netfilter_ipv4/ipt_length.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-
-MODULE_AUTHOR("James Morris <jmorris@intercode.com.au>");
-MODULE_DESCRIPTION("IP tables packet length matching module");
-MODULE_LICENSE("GPL");
-
-static int
-match(const struct sk_buff *skb,
-      const struct net_device *in,
-      const struct net_device *out,
-      const void *matchinfo,
-      int offset,
-      int *hotdrop)
-{
-	const struct ipt_length_info *info = matchinfo;
-	u_int16_t pktlen = ntohs(skb->nh.iph->tot_len);
-	
-	return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
-}
-
-static int
-checkentry(const char *tablename,
-           const struct ipt_ip *ip,
-           void *matchinfo,
-           unsigned int matchsize,
-           unsigned int hook_mask)
-{
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_length_info)))
-		return 0;
-
-	return 1;
-}
-
-static struct ipt_match length_match = {
-	.name		= "length",
-	.match		= &match,
-	.checkentry	= &checkentry,
-	.me		= THIS_MODULE,
-};
-
-static int __init init(void)
-{
-	return ipt_register_match(&length_match);
-}
-
-static void __exit fini(void)
-{
-	ipt_unregister_match(&length_match);
-}
-
-module_init(init);
-module_exit(fini);

net/ipv4/netfilter/ipt_multiport.c

@@ -97,6 +97,7 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
 	u16 _ports[2], *pptr;
@@ -105,7 +106,7 @@ match(const struct sk_buff *skb,
 	if (offset)
 		return 0;
 
-	pptr = skb_header_pointer(skb, skb->nh.iph->ihl * 4,
+	pptr = skb_header_pointer(skb, protoff,
 				  sizeof(_ports), _ports);
 	if (pptr == NULL) {
 		/* We've been asked to examine this packet, and we
@@ -128,6 +129,7 @@ match_v1(const struct sk_buff *skb,
 	 const struct net_device *out,
 	 const void *matchinfo,
 	 int offset,
+	 unsigned int protoff,
 	 int *hotdrop)
 {
 	u16 _ports[2], *pptr;
@@ -136,7 +138,7 @@ match_v1(const struct sk_buff *skb,
 	if (offset)
 		return 0;
 
-	pptr = skb_header_pointer(skb, skb->nh.iph->ihl * 4,
+	pptr = skb_header_pointer(skb, protoff,
 				  sizeof(_ports), _ports);
 	if (pptr == NULL) {
 		/* We've been asked to examine this packet, and we
@@ -154,7 +156,7 @@ match_v1(const struct sk_buff *skb,
 /* Called when user tries to insert an entry of this type. */
 static int
 checkentry(const char *tablename,
-	   const struct ipt_ip *ip,
+	   const void *ip,
 	   void *matchinfo,
 	   unsigned int matchsize,
 	   unsigned int hook_mask)
@@ -164,7 +166,7 @@ checkentry(const char *tablename,
 
 static int
 checkentry_v1(const char *tablename,
-	      const struct ipt_ip *ip,
+	      const void *ip,
 	      void *matchinfo,
 	      unsigned int matchsize,
 	      unsigned int hook_mask)

net/ipv4/netfilter/ipt_owner.c

@@ -27,6 +27,7 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
 	const struct ipt_owner_info *info = matchinfo;
@@ -51,7 +52,7 @@ match(const struct sk_buff *skb,
 
 static int
 checkentry(const char *tablename,
-           const struct ipt_ip *ip,
+           const void *ip,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)

net/ipv4/netfilter/ipt_physdev.c

@@ -1,135 +0,0 @@
-/* Kernel module to match the bridge port in and
- * out device for IP packets coming into contact with a bridge. */
-
-/* (C) 2001-2003 Bart De Schuymer <bdschuym@pandora.be>
- *
- * 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.
- */
-
-#include <linux/module.h>
-#include <linux/netdevice.h>
-#include <linux/skbuff.h>
-#include <linux/netfilter_ipv4/ipt_physdev.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_bridge.h>
-#define MATCH   1
-#define NOMATCH 0
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Bart De Schuymer <bdschuym@pandora.be>");
-MODULE_DESCRIPTION("iptables bridge physical device match module");
-
-static int
-match(const struct sk_buff *skb,
-      const struct net_device *in,
-      const struct net_device *out,
-      const void *matchinfo,
-      int offset,
-      int *hotdrop)
-{
-	int i;
-	static const char nulldevname[IFNAMSIZ];
-	const struct ipt_physdev_info *info = matchinfo;
-	unsigned int ret;
-	const char *indev, *outdev;
-	struct nf_bridge_info *nf_bridge;
-
-	/* Not a bridged IP packet or no info available yet:
-	 * LOCAL_OUT/mangle and LOCAL_OUT/nat don't know if
-	 * the destination device will be a bridge. */
-	if (!(nf_bridge = skb->nf_bridge)) {
-		/* Return MATCH if the invert flags of the used options are on */
-		if ((info->bitmask & IPT_PHYSDEV_OP_BRIDGED) &&
-		    !(info->invert & IPT_PHYSDEV_OP_BRIDGED))
-			return NOMATCH;
-		if ((info->bitmask & IPT_PHYSDEV_OP_ISIN) &&
-		    !(info->invert & IPT_PHYSDEV_OP_ISIN))
-			return NOMATCH;
-		if ((info->bitmask & IPT_PHYSDEV_OP_ISOUT) &&
-		    !(info->invert & IPT_PHYSDEV_OP_ISOUT))
-			return NOMATCH;
-		if ((info->bitmask & IPT_PHYSDEV_OP_IN) &&
-		    !(info->invert & IPT_PHYSDEV_OP_IN))
-			return NOMATCH;
-		if ((info->bitmask & IPT_PHYSDEV_OP_OUT) &&
-		    !(info->invert & IPT_PHYSDEV_OP_OUT))
-			return NOMATCH;
-		return MATCH;
-	}
-
-	/* This only makes sense in the FORWARD and POSTROUTING chains */
-	if ((info->bitmask & IPT_PHYSDEV_OP_BRIDGED) &&
-	    (!!(nf_bridge->mask & BRNF_BRIDGED) ^
-	    !(info->invert & IPT_PHYSDEV_OP_BRIDGED)))
-		return NOMATCH;
-
-	if ((info->bitmask & IPT_PHYSDEV_OP_ISIN &&
-	    (!nf_bridge->physindev ^ !!(info->invert & IPT_PHYSDEV_OP_ISIN))) ||
-	    (info->bitmask & IPT_PHYSDEV_OP_ISOUT &&
-	    (!nf_bridge->physoutdev ^ !!(info->invert & IPT_PHYSDEV_OP_ISOUT))))
-		return NOMATCH;
-
-	if (!(info->bitmask & IPT_PHYSDEV_OP_IN))
-		goto match_outdev;
-	indev = nf_bridge->physindev ? nf_bridge->physindev->name : nulldevname;
-	for (i = 0, ret = 0; i < IFNAMSIZ/sizeof(unsigned int); i++) {
-		ret |= (((const unsigned int *)indev)[i]
-			^ ((const unsigned int *)info->physindev)[i])
-			& ((const unsigned int *)info->in_mask)[i];
-	}
-
-	if ((ret == 0) ^ !(info->invert & IPT_PHYSDEV_OP_IN))
-		return NOMATCH;
-
-match_outdev:
-	if (!(info->bitmask & IPT_PHYSDEV_OP_OUT))
-		return MATCH;
-	outdev = nf_bridge->physoutdev ?
-		 nf_bridge->physoutdev->name : nulldevname;
-	for (i = 0, ret = 0; i < IFNAMSIZ/sizeof(unsigned int); i++) {
-		ret |= (((const unsigned int *)outdev)[i]
-			^ ((const unsigned int *)info->physoutdev)[i])
-			& ((const unsigned int *)info->out_mask)[i];
-	}
-
-	return (ret != 0) ^ !(info->invert & IPT_PHYSDEV_OP_OUT);
-}
-
-static int
-checkentry(const char *tablename,
-		       const struct ipt_ip *ip,
-		       void *matchinfo,
-		       unsigned int matchsize,
-		       unsigned int hook_mask)
-{
-	const struct ipt_physdev_info *info = matchinfo;
-
-	if (matchsize != IPT_ALIGN(sizeof(struct ipt_physdev_info)))
-		return 0;
-	if (!(info->bitmask & IPT_PHYSDEV_OP_MASK) ||
-	    info->bitmask & ~IPT_PHYSDEV_OP_MASK)
-		return 0;
-	return 1;
-}
-
-static struct ipt_match physdev_match = {
-	.name		= "physdev",
-	.match		= &match,
-	.checkentry	= &checkentry,
-	.me		= THIS_MODULE,
-};
-
-static int __init init(void)
-{
-	return ipt_register_match(&physdev_match);
-}
-
-static void __exit fini(void)
-{
-	ipt_unregister_match(&physdev_match);
-}
-
-module_init(init);
-module_exit(fini);

net/ipv4/netfilter/ipt_recent.c

@@ -104,6 +104,7 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop);
 
 /* Function to hash a given address into the hash table of table_size size */
@@ -317,7 +318,7 @@ static int ip_recent_ctrl(struct file *file, const char __user *input, unsigned
 	skb->nh.iph->daddr = 0;
 	/* Clear ttl since we have no way of knowing it */
 	skb->nh.iph->ttl = 0;
-	match(skb,NULL,NULL,info,0,NULL);
+	match(skb,NULL,NULL,info,0,0,NULL);
 
 	kfree(skb->nh.iph);
 out_free_skb:
@@ -357,6 +358,7 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
 	int pkt_count, hits_found, ans;
@@ -654,7 +656,7 @@ match(const struct sk_buff *skb,
  */
 static int
 checkentry(const char *tablename,
-           const struct ipt_ip *ip,
+           const void *ip,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)

net/ipv4/netfilter/ipt_tos.c

@@ -23,6 +23,7 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
 	const struct ipt_tos_info *info = matchinfo;
@@ -32,7 +33,7 @@ match(const struct sk_buff *skb,
 
 static int
 checkentry(const char *tablename,
-           const struct ipt_ip *ip,
+           const void *ip,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)

net/ipv4/netfilter/ipt_ttl.c

@@ -21,7 +21,7 @@ MODULE_LICENSE("GPL");
 
 static int match(const struct sk_buff *skb, const struct net_device *in,
 		 const struct net_device *out, const void *matchinfo,
-		 int offset, int *hotdrop)
+		 int offset, unsigned int protoff, int *hotdrop)
 {
 	const struct ipt_ttl_info *info = matchinfo;
 
@@ -47,7 +47,7 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
 	return 0;
 }
 
-static int checkentry(const char *tablename, const struct ipt_ip *ip,
+static int checkentry(const char *tablename, const void  *ip,
 		      void *matchinfo, unsigned int matchsize,
 		      unsigned int hook_mask)
 {

net/ipv4/netfilter/iptable_filter.c

@@ -78,7 +78,8 @@ static struct ipt_table packet_filter = {
 	.name		= "filter",
 	.valid_hooks	= FILTER_VALID_HOOKS,
 	.lock		= RW_LOCK_UNLOCKED,
-	.me		= THIS_MODULE
+	.me		= THIS_MODULE,
+	.af		= AF_INET,
 };
 
 /* The work comes in here from netfilter.c. */

net/ipv4/netfilter/iptable_mangle.c

@@ -109,6 +109,7 @@ static struct ipt_table packet_mangler = {
 	.valid_hooks	= MANGLE_VALID_HOOKS,
 	.lock		= RW_LOCK_UNLOCKED,
 	.me		= THIS_MODULE,
+	.af		= AF_INET,
 };
 
 /* The work comes in here from netfilter.c. */

net/ipv4/netfilter/iptable_raw.c

@@ -83,7 +83,8 @@ static struct ipt_table packet_raw = {
 	.name = "raw", 
 	.valid_hooks =  RAW_VALID_HOOKS, 
 	.lock = RW_LOCK_UNLOCKED, 
-	.me = THIS_MODULE
+	.me = THIS_MODULE,
+	.af = AF_INET,
 };
 
 /* The work comes in here from netfilter.c. */

net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c

@@ -575,7 +575,7 @@ MODULE_LICENSE("GPL");
 
 static int __init init(void)
 {
-	need_nf_conntrack();
+	need_conntrack();
 	return init_or_cleanup(1);
 }
 
@@ -587,9 +587,4 @@ static void __exit fini(void)
 module_init(init);
 module_exit(fini);
 
-void need_ip_conntrack(void)
-{
-}
-
-EXPORT_SYMBOL(need_ip_conntrack);
 EXPORT_SYMBOL(nf_ct_ipv4_gather_frags);

net/ipv6/netfilter/Kconfig

@@ -41,6 +41,7 @@ config IP6_NF_QUEUE
 
 config IP6_NF_IPTABLES
 	tristate "IP6 tables support (required for filtering/masq/NAT)"
+	depends on NETFILTER_XTABLES
 	help
 	  ip6tables is a general, extensible packet identification framework.
 	  Currently only the packet filtering and packet mangling subsystem
@@ -50,25 +51,6 @@ config IP6_NF_IPTABLES
 	  To compile it as a module, choose M here.  If unsure, say N.
 
 # The simple matches.
-config IP6_NF_MATCH_LIMIT
-	tristate "limit match support"
-	depends on IP6_NF_IPTABLES
-	help
-	  limit matching allows you to control the rate at which a rule can be
-	  matched: mainly useful in combination with the LOG target ("LOG
-	  target support", below) and to avoid some Denial of Service attacks.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
-config IP6_NF_MATCH_MAC
-	tristate "MAC address match support"
-	depends on IP6_NF_IPTABLES
-	help
-	  mac matching allows you to match packets based on the source
-	  Ethernet address of the packet.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP6_NF_MATCH_RT
 	tristate "Routing header match support"
 	depends on IP6_NF_IPTABLES
@@ -124,16 +106,6 @@ config IP6_NF_MATCH_OWNER
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP6_NF_MATCH_MARK
-	tristate "netfilter MARK match support"
-	depends on IP6_NF_IPTABLES
-	help
-	  Netfilter mark matching allows you to match packets based on the
-	  `nfmark' value in the packet.  This can be set by the MARK target
-	  (see below).
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP6_NF_MATCH_IPV6HEADER
 	tristate "IPv6 Extension Headers Match"
 	depends on IP6_NF_IPTABLES
@@ -151,15 +123,6 @@ config IP6_NF_MATCH_AHESP
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP6_NF_MATCH_LENGTH
-	tristate "Packet Length match support"
-	depends on IP6_NF_IPTABLES
-	help
-	  This option allows you to match the length of a packet against a
-	  specific value or range of values.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP6_NF_MATCH_EUI64
 	tristate "EUI64 address check"
 	depends on IP6_NF_IPTABLES
@@ -170,15 +133,6 @@ config IP6_NF_MATCH_EUI64
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP6_NF_MATCH_PHYSDEV
-	tristate "Physdev match support"
-	depends on IP6_NF_IPTABLES && BRIDGE_NETFILTER
-	help
-	  Physdev packet matching matches against the physical bridge ports
-	  the IP packet arrived on or will leave by.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP6_NF_MATCH_POLICY
 	tristate "IPsec policy match support"
 	depends on IP6_NF_IPTABLES && XFRM
@@ -219,17 +173,6 @@ config IP6_NF_TARGET_REJECT
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP6_NF_TARGET_NFQUEUE
-	tristate "NFQUEUE Target Support"
-	depends on IP6_NF_IPTABLES
-	help
-	  This Target replaced the old obsolete QUEUE target.
-
-	  As opposed to QUEUE, it supports 65535 different queues,
-	  not just one.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP6_NF_MANGLE
 	tristate "Packet mangling"
 	depends on IP6_NF_IPTABLES
@@ -240,19 +183,6 @@ config IP6_NF_MANGLE
 
 	  To compile it as a module, choose M here.  If unsure, say N.
 
-config IP6_NF_TARGET_MARK
-	tristate "MARK target support"
-	depends on IP6_NF_MANGLE
-	help
-	  This option adds a `MARK' target, which allows you to create rules
-	  in the `mangle' table which alter the netfilter mark (nfmark) field
-	  associated with the packet packet prior to routing. This can change
-	  the routing method (see `Use netfilter MARK value as routing
-	  key') and can also be used by other subsystems to change their
-	  behavior.
-
-	  To compile it as a module, choose M here.  If unsure, say N.
-
 config IP6_NF_TARGET_HL
 	tristate  'HL (hoplimit) target support'
 	depends on IP6_NF_MANGLE

net/ipv6/netfilter/Makefile

@@ -4,10 +4,7 @@
 
 # Link order matters here.
 obj-$(CONFIG_IP6_NF_IPTABLES) += ip6_tables.o
-obj-$(CONFIG_IP6_NF_MATCH_LIMIT) += ip6t_limit.o
-obj-$(CONFIG_IP6_NF_MATCH_MARK) += ip6t_mark.o
 obj-$(CONFIG_IP6_NF_MATCH_LENGTH) += ip6t_length.o
-obj-$(CONFIG_IP6_NF_MATCH_MAC) += ip6t_mac.o
 obj-$(CONFIG_IP6_NF_MATCH_RT) += ip6t_rt.o
 obj-$(CONFIG_IP6_NF_MATCH_OPTS) += ip6t_hbh.o ip6t_dst.o
 obj-$(CONFIG_IP6_NF_MATCH_IPV6HEADER) += ip6t_ipv6header.o
@@ -17,12 +14,9 @@ obj-$(CONFIG_IP6_NF_MATCH_POLICY) += ip6t_policy.o
 obj-$(CONFIG_IP6_NF_MATCH_EUI64) += ip6t_eui64.o
 obj-$(CONFIG_IP6_NF_MATCH_MULTIPORT) += ip6t_multiport.o
 obj-$(CONFIG_IP6_NF_MATCH_OWNER) += ip6t_owner.o
-obj-$(CONFIG_IP6_NF_MATCH_PHYSDEV) += ip6t_physdev.o
 obj-$(CONFIG_IP6_NF_FILTER) += ip6table_filter.o
 obj-$(CONFIG_IP6_NF_MANGLE) += ip6table_mangle.o
-obj-$(CONFIG_IP6_NF_TARGET_MARK) += ip6t_MARK.o
 obj-$(CONFIG_IP6_NF_TARGET_HL) += ip6t_HL.o
-obj-$(CONFIG_IP6_NF_TARGET_NFQUEUE) += ip6t_NFQUEUE.o
 obj-$(CONFIG_IP6_NF_QUEUE) += ip6_queue.o
 obj-$(CONFIG_IP6_NF_TARGET_LOG) += ip6t_LOG.o
 obj-$(CONFIG_IP6_NF_RAW) += ip6table_raw.o