[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>

98 files changed, 2646 insertions, 3446 deletions

diff --git a/net/bridge/netfilter/ebt_log.c b/net/bridge/netfilter/ebt_log.c
index 9f6e0193ae10..a29c1232c420 100644
--- a/net/bridge/netfilter/ebt_log.c
+++ b/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>
 
diff --git a/net/ipv4/netfilter/Kconfig b/net/ipv4/netfilter/Kconfig
index a9893ec03e02..db783036e4d8 100644
--- a/net/ipv4/netfilter/Kconfig
+++ b/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
diff --git a/net/ipv4/netfilter/Makefile b/net/ipv4/netfilter/Makefile
index 549b01a648b3..bcefe64b9317 100644
--- a/net/ipv4/netfilter/Makefile
+++ b/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
diff --git a/net/ipv4/netfilter/arp_tables.c b/net/ipv4/netfilter/arp_tables.c
index b6d5284c8020..afe3d8f8177d 100644
--- a/net/ipv4/netfilter/arp_tables.c
+++ b/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);
diff --git a/net/ipv4/netfilter/arpt_mangle.c b/net/ipv4/netfilter/arpt_mangle.c
index 3e592ec86482..c97650a16a5b 100644
--- a/net/ipv4/netfilter/arpt_mangle.c
+++ b/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;
diff --git a/net/ipv4/netfilter/arptable_filter.c b/net/ipv4/netfilter/arptable_filter.c
index 0d759f5a4ef0..f6ab45f48681 100644
--- a/net/ipv4/netfilter/arptable_filter.c
+++ b/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 */
diff --git a/net/ipv4/netfilter/ip_conntrack_standalone.c b/net/ipv4/netfilter/ip_conntrack_standalone.c
index 9dec1293f67a..833fcb4be5e7 100644
--- a/net/ipv4/netfilter/ip_conntrack_standalone.c
+++ b/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);
diff --git a/net/ipv4/netfilter/ip_nat_rule.c b/net/ipv4/netfilter/ip_nat_rule.c
index cb66b8bddeb3..1de86282d232 100644
--- a/net/ipv4/netfilter/ip_nat_rule.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ip_nat_standalone.c b/net/ipv4/netfilter/ip_nat_standalone.c
index 8b8a1f00bbf4..ad438fb185b8 100644
--- a/net/ipv4/netfilter/ip_nat_standalone.c
+++ b/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;
 
diff --git a/net/ipv4/netfilter/ip_tables.c b/net/ipv4/netfilter/ip_tables.c
index 877bc96d3336..2371b2062c2d 100644
--- a/net/ipv4/netfilter/ip_tables.c
+++ b/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);
diff --git a/net/ipv4/netfilter/ipt_CLUSTERIP.c b/net/ipv4/netfilter/ipt_CLUSTERIP.c
index 45c52d8f4d99..d9bc971f03af 100644
--- a/net/ipv4/netfilter/ipt_CLUSTERIP.c
+++ b/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;
 
diff --git a/net/ipv4/netfilter/ipt_DSCP.c b/net/ipv4/netfilter/ipt_DSCP.c
index 6e319570a28c..898cdf79ce18 100644
--- a/net/ipv4/netfilter/ipt_DSCP.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_ECN.c b/net/ipv4/netfilter/ipt_ECN.c
index a1319693f648..706445426a6d 100644
--- a/net/ipv4/netfilter/ipt_ECN.c
+++ b/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",
diff --git a/net/ipv4/netfilter/ipt_LOG.c b/net/ipv4/netfilter/ipt_LOG.c
index 30be0f1dae37..6606ddb66a29 100644
--- a/net/ipv4/netfilter/ipt_LOG.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_MASQUERADE.c b/net/ipv4/netfilter/ipt_MASQUERADE.c
index 27860510ca6d..12c56d3343ca 100644
--- a/net/ipv4/netfilter/ipt_MASQUERADE.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_NETMAP.c b/net/ipv4/netfilter/ipt_NETMAP.c
index e6e7b6095363..b074467fe67b 100644
--- a/net/ipv4/netfilter/ipt_NETMAP.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_NFQUEUE.c b/net/ipv4/netfilter/ipt_NFQUEUE.c
deleted file mode 100644
index 3cedc9be8807..000000000000
--- a/net/ipv4/netfilter/ipt_NFQUEUE.c
+++ /dev/null
@@ -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);
diff --git a/net/ipv4/netfilter/ipt_REDIRECT.c b/net/ipv4/netfilter/ipt_REDIRECT.c
index 5245bfd33d52..140be51f2f01 100644
--- a/net/ipv4/netfilter/ipt_REDIRECT.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index 6693526ae128..3eb47aae78c5 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/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);
diff --git a/net/ipv4/netfilter/ipt_SAME.c b/net/ipv4/netfilter/ipt_SAME.c
index 7a0536d864ac..a22de59bba0e 100644
--- a/net/ipv4/netfilter/ipt_SAME.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_TCPMSS.c b/net/ipv4/netfilter/ipt_TCPMSS.c
index 8db70d6908c3..c122841e182c 100644
--- a/net/ipv4/netfilter/ipt_TCPMSS.c
+++ b/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",
diff --git a/net/ipv4/netfilter/ipt_TOS.c b/net/ipv4/netfilter/ipt_TOS.c
index deadb36d4428..3a44a56db239 100644
--- a/net/ipv4/netfilter/ipt_TOS.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_TTL.c b/net/ipv4/netfilter/ipt_TTL.c
index b9ae6a9382f3..b769eb231970 100644
--- a/net/ipv4/netfilter/ipt_TTL.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_ULOG.c b/net/ipv4/netfilter/ipt_ULOG.c
index 38641cd06123..641dbc477650 100644
--- a/net/ipv4/netfilter/ipt_ULOG.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_addrtype.c b/net/ipv4/netfilter/ipt_addrtype.c
index e19c2a52d00c..d6b83a976518 100644
--- a/net/ipv4/netfilter/ipt_addrtype.c
+++ b/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)
 {
diff --git a/net/ipv4/netfilter/ipt_ah.c b/net/ipv4/netfilter/ipt_ah.c
index a0fea847cb72..144adfec13cc 100644
--- a/net/ipv4/netfilter/ipt_ah.c
+++ b/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)) {
diff --git a/net/ipv4/netfilter/ipt_dscp.c b/net/ipv4/netfilter/ipt_dscp.c
index 5df52a64a5d4..92063b4f8602 100644
--- a/net/ipv4/netfilter/ipt_dscp.c
+++ b/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)
 {
diff --git a/net/ipv4/netfilter/ipt_ecn.c b/net/ipv4/netfilter/ipt_ecn.c
index b6f7181e89cc..e68b0c7981f0 100644
--- a/net/ipv4/netfilter/ipt_ecn.c
+++ b/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;
diff --git a/net/ipv4/netfilter/ipt_esp.c b/net/ipv4/netfilter/ipt_esp.c
index e1d0dd31e117..9de191a8162d 100644
--- a/net/ipv4/netfilter/ipt_esp.c
+++ b/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)) {
diff --git a/net/ipv4/netfilter/ipt_hashlimit.c b/net/ipv4/netfilter/ipt_hashlimit.c
index 2dd1cccbdab9..4fe48c1bd5f3 100644
--- a/net/ipv4/netfilter/ipt_hashlimit.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_iprange.c b/net/ipv4/netfilter/ipt_iprange.c
index b835b7b2e560..13fb16fb7892 100644
--- a/net/ipv4/netfilter/ipt_iprange.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_length.c b/net/ipv4/netfilter/ipt_length.c
deleted file mode 100644
index 4eabcfbda9d1..000000000000
--- a/net/ipv4/netfilter/ipt_length.c
+++ /dev/null
@@ -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);
diff --git a/net/ipv4/netfilter/ipt_multiport.c b/net/ipv4/netfilter/ipt_multiport.c
index 99e8188162e2..2d52326553f1 100644
--- a/net/ipv4/netfilter/ipt_multiport.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_owner.c b/net/ipv4/netfilter/ipt_owner.c
index 0cee2862ed85..4843d0c9734f 100644
--- a/net/ipv4/netfilter/ipt_owner.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_physdev.c b/net/ipv4/netfilter/ipt_physdev.c
deleted file mode 100644
index 03f554857a4d..000000000000
--- a/net/ipv4/netfilter/ipt_physdev.c
+++ /dev/null
@@ -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);
diff --git a/net/ipv4/netfilter/ipt_recent.c b/net/ipv4/netfilter/ipt_recent.c
index 5ddccb18c65e..44611d6d14f5 100644
--- a/net/ipv4/netfilter/ipt_recent.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_tos.c b/net/ipv4/netfilter/ipt_tos.c
index 086a1bb61e3e..9ab765e126f2 100644
--- a/net/ipv4/netfilter/ipt_tos.c
+++ b/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)
diff --git a/net/ipv4/netfilter/ipt_ttl.c b/net/ipv4/netfilter/ipt_ttl.c
index 219aa9de88cc..82da53f430ab 100644
--- a/net/ipv4/netfilter/ipt_ttl.c
+++ b/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)
 {
diff --git a/net/ipv4/netfilter/iptable_filter.c b/net/ipv4/netfilter/iptable_filter.c
index 260a4f0a2a90..212a3079085b 100644
--- a/net/ipv4/netfilter/iptable_filter.c
+++ b/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. */
diff --git a/net/ipv4/netfilter/iptable_mangle.c b/net/ipv4/netfilter/iptable_mangle.c
index 160eb11b6e2f..3212a5cc4b6b 100644
--- a/net/ipv4/netfilter/iptable_mangle.c
+++ b/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. */
diff --git a/net/ipv4/netfilter/iptable_raw.c b/net/ipv4/netfilter/iptable_raw.c
index 47449ba83eb9..fdb9e9c81e81 100644
--- a/net/ipv4/netfilter/iptable_raw.c
+++ b/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. */
diff --git a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c b/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
index 0c56c52a3831..167619f638c6 100644
--- a/net/ipv4/netfilter/nf_conntrack_l3proto_ipv4.c
+++ b/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);
diff --git a/net/ipv6/netfilter/Kconfig b/net/ipv6/netfilter/Kconfig
index 105dd69ee9fb..2d6f8ecbc27b 100644
--- a/net/ipv6/netfilter/Kconfig
+++ b/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
diff --git a/net/ipv6/netfilter/Makefile b/net/ipv6/netfilter/Makefile
index c0c809b426e8..663b4749820d 100644
--- a/net/ipv6/netfilter/Makefile
+++ b/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
diff --git a/net/ipv6/netfilter/ip6_tables.c b/net/ipv6/netfilter/ip6_tables.c
index 1390370186d9..847068fd3367 100644
--- a/net/ipv6/netfilter/ip6_tables.c
+++ b/net/ipv6/netfilter/ip6_tables.c
@@ -13,6 +13,9 @@
  *        a table
  * 06 Jun 2002 Andras Kis-Szabo <kisza@sch.bme.hu>
  *      - new extension header parser code
+ * 15 Oct 2005 Harald Welte <laforge@netfilter.org>
+ *      - Unification of {ip,ip6}_tables into x_tables
+ *      - Removed tcp and udp code, since it's not ipv6 specific
  */
 
 #include <linux/capability.h>
@@ -23,8 +26,6 @@
 #include <linux/vmalloc.h>
 #include <linux/netdevice.h>
 #include <linux/module.h>
-#include <linux/tcp.h>
-#include <linux/udp.h>
 #include <linux/icmpv6.h>
 #include <net/ipv6.h>
 #include <asm/uaccess.h>
@@ -33,6 +34,7 @@
 #include <linux/cpumask.h>
 
 #include <linux/netfilter_ipv6/ip6_tables.h>
+#include <linux/netfilter/x_tables.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
@@ -67,13 +69,8 @@ do {								\
 #else
 #define IP_NF_ASSERT(x)
 #endif
-#define SMP_ALIGN(x) (((x) + SMP_CACHE_BYTES-1) & ~(SMP_CACHE_BYTES-1))
 
-static DECLARE_MUTEX(ip6t_mutex);
 
-/* Must have mutex */
-#define ASSERT_READ_LOCK(x) IP_NF_ASSERT(down_trylock(&ip6t_mutex) != 0)
-#define ASSERT_WRITE_LOCK(x) IP_NF_ASSERT(down_trylock(&ip6t_mutex) != 0)
 #include <linux/netfilter_ipv4/listhelp.h>
 
 #if 0
@@ -91,30 +88,6 @@ static DECLARE_MUTEX(ip6t_mutex);
 
    Hence the start of any table is given by get_table() below.  */
 
-/* The table itself */
-struct ip6t_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_IP6_NUMHOOKS];
-        unsigned int underflow[NF_IP6_NUMHOOKS];
-
-        /* ip6t_entry tables: one per CPU */
-        void *entries[NR_CPUS];
-};
-
-static LIST_HEAD(ip6t_target);
-static LIST_HEAD(ip6t_match);
-static LIST_HEAD(ip6t_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; })
@@ -297,7 +270,7 @@ ip6t_do_table(struct sk_buff **pskb,
               unsigned int hook,
               const struct net_device *in,
               const struct net_device *out,
-              struct ip6t_table *table,
+              struct xt_table *table,
               void *userdata)
 {
         static const char nulldevname[IFNAMSIZ] __attribute__((aligned(sizeof(long))));
@@ -309,6 +282,7 @@ ip6t_do_table(struct sk_buff **pskb,
         const char *indev, *outdev;
         void *table_base;
         struct ip6t_entry *e, *back;
+        struct xt_table_info *private;
 
         /* Initialization */
         indev = in ? in->name : nulldevname;
@@ -321,9 +295,10 @@ ip6t_do_table(struct sk_buff **pskb,
          * match it. */
 
         read_lock_bh(&table->lock);
+        private = table->private;
         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]);
+        table_base = (void *)private->entries[smp_processor_id()];
+        e = get_entry(table_base, private->hook_entry[hook]);
 
 #ifdef CONFIG_NETFILTER_DEBUG
         /* Check noone else using our table */
@@ -339,7 +314,7 @@ ip6t_do_table(struct sk_buff **pskb,
 #endif
 
         /* 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);
@@ -439,145 +414,6 @@ ip6t_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 ip6t_table *find_table_lock(const char *name)
-{
-        struct ip6t_table *t;
-
-        if (down_interruptible(&ip6t_mutex) != 0)
-                return ERR_PTR(-EINTR);
-
-        list_for_each_entry(t, &ip6t_tables, list)
-                if (strcmp(t->name, name) == 0 && try_module_get(t->me))
-                        return t;
-        up(&ip6t_mutex);
-        return NULL;
-}
-
-/* Find match, grabs ref.  Returns ERR_PTR() on error. */
-static inline struct ip6t_match *find_match(const char *name, u8 revision)
-{
-        struct ip6t_match *m;
-        int err = 0;
-
-        if (down_interruptible(&ip6t_mutex) != 0)
-                return ERR_PTR(-EINTR);
-
-        list_for_each_entry(m, &ip6t_match, list) {
-                if (strcmp(m->name, name) == 0) {
-                        if (m->revision == revision) {
-                                if (try_module_get(m->me)) {
-                                        up(&ip6t_mutex);
-                                        return m;
-                                }
-                        } else
-                                err = -EPROTOTYPE; /* Found something. */
-                }
-        }
-        up(&ip6t_mutex);
-        return ERR_PTR(err);
-}
-
-/* Find target, grabs ref.  Returns ERR_PTR() on error. */
-static inline struct ip6t_target *find_target(const char *name, u8 revision)
-{
-        struct ip6t_target *t;
-        int err = 0;
-
-        if (down_interruptible(&ip6t_mutex) != 0)
-                return ERR_PTR(-EINTR);
-
-        list_for_each_entry(t, &ip6t_target, list) {
-                if (strcmp(t->name, name) == 0) {
-                        if (t->revision == revision) {
-                                if (try_module_get(t->me)) {
-                                        up(&ip6t_mutex);
-                                        return t;
-                                }
-                        } else
-                                err = -EPROTOTYPE; /* Found something. */
-                }
-        }
-        up(&ip6t_mutex);
-        return ERR_PTR(err);
-}
-
-struct ip6t_target *ip6t_find_target(const char *name, u8 revision)
-{
-        struct ip6t_target *target;
-
-        target = try_then_request_module(find_target(name, revision),
-                                         "ip6t_%s", name);
-        if (IS_ERR(target) || !target)
-                return NULL;
-        return target;
-}
-
-static int match_revfn(const char *name, u8 revision, int *bestp)
-{
-        struct ip6t_match *m;
-        int have_rev = 0;
-
-        list_for_each_entry(m, &ip6t_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 ip6t_target *t;
-        int have_rev = 0;
-
-        list_for_each_entry(t, &ip6t_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 fals (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(&ip6t_mutex) != 0) {
-                *err = -EINTR;
-                return 1;
-        }
-        have_rev = revfn(name, revision, &best);
-        up(&ip6t_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 ip6t_ip6 *ipv6)
@@ -594,7 +430,7 @@ unconditional(const struct ip6t_ip6 *ipv6)
 /* 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 ip6t_table_info *newinfo,
+mark_source_chains(struct xt_table_info *newinfo,
                    unsigned int valid_hooks, void *entry0)
 {
         unsigned int hook;
@@ -740,11 +576,11 @@ check_match(struct ip6t_entry_match *m,
 {
         struct ip6t_match *match;
 
-        match = try_then_request_module(find_match(m->u.user.name,
-                                                   m->u.user.revision),
+        match = try_then_request_module(xt_find_match(AF_INET6, m->u.user.name,
+                                        m->u.user.revision),
                                         "ip6t_%s", m->u.user.name);
         if (IS_ERR(match) || !match) {
-                duprintf("check_match: `%s' not found\n", m->u.user.name);
+                duprintf("check_match: `%s' not found\n", m->u.user.name);
                 return match ? PTR_ERR(match) : -ENOENT;
         }
         m->u.kernel.match = match;
@@ -785,8 +621,9 @@ check_entry(struct ip6t_entry *e, const char *name, unsigned int size,
                 goto cleanup_matches;
 
         t = ip6t_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(AF_INET6,
+                                                        t->u.user.name,
+                                                        t->u.user.revision),
                                          "ip6t_%s", t->u.user.name);
         if (IS_ERR(target) || !target) {
                 duprintf("check_entry: `%s' not found\n", t->u.user.name);
@@ -822,7 +659,7 @@ check_entry(struct ip6t_entry *e, const char *name, unsigned int size,
 
 static inline int
 check_entry_size_and_hooks(struct ip6t_entry *e,
-                           struct ip6t_table_info *newinfo,
+                           struct xt_table_info *newinfo,
                            unsigned char *base,
                            unsigned char *limit,
                            const unsigned int *hook_entries,
@@ -856,7 +693,7 @@ check_entry_size_and_hooks(struct ip6t_entry *e,
            < 0 (not IP6T_RETURN). --RR */
 
         /* Clear counters and comefrom */
-        e->counters = ((struct ip6t_counters) { 0, 0 });
+        e->counters = ((struct xt_counters) { 0, 0 });
         e->comefrom = 0;
 
         (*i)++;
@@ -886,7 +723,7 @@ cleanup_entry(struct ip6t_entry *e, unsigned int *i)
 static int
 translate_table(const char *name,
                 unsigned int valid_hooks,
-                struct ip6t_table_info *newinfo,
+                struct xt_table_info *newinfo,
                 void *entry0,
                 unsigned int size,
                 unsigned int number,
@@ -963,48 +800,10 @@ translate_table(const char *name,
         return ret;
 }
 
-static struct ip6t_table_info *
-replace_table(struct ip6t_table *table,
-              unsigned int num_counters,
-              struct ip6t_table_info *newinfo,
-              int *error)
-{
-        struct ip6t_table_info *oldinfo;
-
-#ifdef CONFIG_NETFILTER_DEBUG
-        {
-                int cpu;
-
-                for_each_cpu(cpu) {
-                        struct ip6t_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 ip6t_entry *e,
-                     struct ip6t_counters total[],
+                     struct xt_counters total[],
                      unsigned int *i)
 {
         ADD_COUNTER(total[*i], e->counters.bcnt, e->counters.pcnt);
@@ -1025,8 +824,8 @@ set_entry_to_counter(const struct ip6t_entry *e,
 }
 
 static void
-get_counters(const struct ip6t_table_info *t,
-             struct ip6t_counters counters[])
+get_counters(const struct xt_table_info *t,
+             struct xt_counters counters[])
 {
         unsigned int cpu;
         unsigned int i;
@@ -1060,19 +859,20 @@ get_counters(const struct ip6t_table_info *t,
 
 static int
 copy_entries_to_user(unsigned int total_size,
-                     struct ip6t_table *table,
+                     struct xt_table *table,
                      void __user *userptr)
 {
         unsigned int off, num, countersize;
         struct ip6t_entry *e;
-        struct ip6t_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 ip6t_counters) * table->private->number;
+        countersize = sizeof(struct xt_counters) * private->number;
         counters = vmalloc(countersize);
 
         if (counters == NULL)
@@ -1080,11 +880,11 @@ 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 ourc node/cpu */
-        loc_cpu_entry = table->private->entries[raw_smp_processor_id()];
+        loc_cpu_entry = private->entries[raw_smp_processor_id()];
         if (copy_to_user(userptr, loc_cpu_entry, total_size) != 0) {
                 ret = -EFAULT;
                 goto free_counters;
@@ -1143,87 +943,42 @@ get_entries(const struct ip6t_get_entries *entries,
             struct ip6t_get_entries __user *uptr)
 {
         int ret;
-        struct ip6t_table *t;
+        struct xt_table *t;
 
-        t = find_table_lock(entries->name);
+        t = xt_find_table_lock(AF_INET6, entries->name);
         if (t && !IS_ERR(t)) {
-                duprintf("t->private->number = %u\n",
-                         t->private->number);
-                if (entries->size == t->private->size)
-                        ret = copy_entries_to_user(t->private->size,
+                struct xt_table_info *private = t->private;
+                duprintf("t->private->number = %u\n", 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(&ip6t_mutex);
+                xt_table_unlock(t);
         } else
                 ret = t ? PTR_ERR(t) : -ENOENT;
 
         return ret;
 }
 
-static void free_table_info(struct ip6t_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 ip6t_table_info *alloc_table_info(unsigned int size)
-{
-        struct ip6t_table_info *newinfo;
-        int cpu;
-
-        newinfo = kzalloc(sizeof(struct ip6t_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 ip6t_replace tmp;
-        struct ip6t_table *t;
-        struct ip6t_table_info *newinfo, *oldinfo;
-        struct ip6t_counters *counters;
+        struct xt_table *t;
+        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)
                 return -EFAULT;
 
-        /* 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;
 
@@ -1235,7 +990,7 @@ do_replace(void __user *user, unsigned int len)
                 goto free_newinfo;
         }
 
-        counters = vmalloc(tmp.num_counters * sizeof(struct ip6t_counters));
+        counters = vmalloc(tmp.num_counters * sizeof(struct xt_counters));
         if (!counters) {
                 ret = -ENOMEM;
                 goto free_newinfo;
@@ -1249,7 +1004,7 @@ 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_INET6, tmp.name),
                                     "ip6table_%s", tmp.name);
         if (!t || IS_ERR(t)) {
                 ret = t ? PTR_ERR(t) : -ENOENT;
@@ -1264,7 +1019,7 @@ 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;
 
@@ -1283,23 +1038,23 @@ 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()];
         IP6T_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 ip6t_counters) * tmp.num_counters) != 0)
+                         sizeof(struct xt_counters) * tmp.num_counters) != 0)
                 ret = -EFAULT;
         vfree(counters);
-        up(&ip6t_mutex);
+        xt_table_unlock(t);
         return ret;
 
  put_module:
         module_put(t->me);
-        up(&ip6t_mutex);
+        xt_table_unlock(t);
  free_newinfo_counters_untrans:
         IP6T_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;
 }
 
@@ -1307,7 +1062,7 @@ do_replace(void __user *user, unsigned int len)
  * and everything is OK. */
 static inline int
 add_counter_to_entry(struct ip6t_entry *e,
-                     const struct ip6t_counters addme[],
+                     const struct xt_counters addme[],
                      unsigned int *i)
 {
 #if 0
@@ -1329,15 +1084,16 @@ static int
 do_add_counters(void __user *user, unsigned int len)
 {
         unsigned int i;
-        struct ip6t_counters_info tmp, *paddc;
-        struct ip6t_table *t;
+        struct xt_counters_info tmp, *paddc;
+        struct xt_table_info *private;
+        struct xt_table *t;
         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 ip6t_counters))
+        if (len != sizeof(tmp) + tmp.num_counters*sizeof(struct xt_counters))
                 return -EINVAL;
 
         paddc = vmalloc(len);
@@ -1349,29 +1105,30 @@ do_add_counters(void __user *user, unsigned int len)
                 goto free;
         }
 
-        t = find_table_lock(tmp.name);
+        t = xt_find_table_lock(AF_INET6, 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()];
         IP6T_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(&ip6t_mutex);
+        xt_table_unlock(t);
         module_put(t->me);
  free:
         vfree(paddc);
@@ -1415,7 +1172,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
         switch (cmd) {
         case IP6T_SO_GET_INFO: {
                 char name[IP6T_TABLE_MAXNAMELEN];
-                struct ip6t_table *t;
+                struct xt_table *t;
 
                 if (*len != sizeof(struct ip6t_getinfo)) {
                         duprintf("length %u != %u\n", *len,
@@ -1430,25 +1187,26 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
                 }
                 name[IP6T_TABLE_MAXNAMELEN-1] = '\0';
 
-                t = try_then_request_module(find_table_lock(name),
+                t = try_then_request_module(xt_find_table_lock(AF_INET6, name),
                                             "ip6table_%s", name);
                 if (t && !IS_ERR(t)) {
                         struct ip6t_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(&ip6t_mutex);
+                        xt_table_unlock(t);
                         module_put(t->me);
                 } else
                         ret = t ? PTR_ERR(t) : -ENOENT;
@@ -1475,7 +1233,7 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
         case IP6T_SO_GET_REVISION_MATCH:
         case IP6T_SO_GET_REVISION_TARGET: {
                 struct ip6t_get_revision rev;
-                int (*revfn)(const char *, u8, int *);
+                int target;
 
                 if (*len != sizeof(rev)) {
                         ret = -EINVAL;
@@ -1487,12 +1245,13 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
                 }
 
                 if (cmd == IP6T_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_INET6, rev.name,
+                                                         rev.revision,
+                                                         target, &ret),
                                         "ip6t_%s", rev.name);
                 break;
         }
@@ -1505,61 +1264,16 @@ do_ip6t_get_ctl(struct sock *sk, int cmd, void __user *user, int *len)
         return ret;
 }
 
-/* Registration hooks for targets. */
-int
-ip6t_register_target(struct ip6t_target *target)
-{
-        int ret;
-
-        ret = down_interruptible(&ip6t_mutex);
-        if (ret != 0)
-                return ret;
-        list_add(&target->list, &ip6t_target);
-        up(&ip6t_mutex);
-        return ret;
-}
-
-void
-ip6t_unregister_target(struct ip6t_target *target)
-{
-        down(&ip6t_mutex);
-        LIST_DELETE(&ip6t_target, target);
-        up(&ip6t_mutex);
-}
-
-int
-ip6t_register_match(struct ip6t_match *match)
-{
-        int ret;
-
-        ret = down_interruptible(&ip6t_mutex);
-        if (ret != 0)
-                return ret;
-
-        list_add(&match->list, &ip6t_match);
-        up(&ip6t_mutex);
-
-        return ret;
-}
-
-void
-ip6t_unregister_match(struct ip6t_match *match)
-{
-        down(&ip6t_mutex);
-        LIST_DELETE(&ip6t_match, match);
-        up(&ip6t_mutex);
-}
-
-int ip6t_register_table(struct ip6t_table *table,
+int ip6t_register_table(struct xt_table *table,
                         const struct ip6t_replace *repl)
 {
         int ret;
-        struct ip6t_table_info *newinfo;
-        static struct ip6t_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;
 
@@ -1573,244 +1287,29 @@ int ip6t_register_table(struct ip6t_table *table,
                               repl->hook_entry,
                               repl->underflow);
         if (ret != 0) {
-                free_table_info(newinfo);
+                xt_free_table_info(newinfo);
                 return ret;
         }
 
-        ret = down_interruptible(&ip6t_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(&ip6t_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(&ip6t_tables, table);
-
- unlock:
-        up(&ip6t_mutex);
-        return ret;
-
- free_unlock:
-        free_table_info(newinfo);
-        goto unlock;
+        return 0;
 }
 
-void ip6t_unregister_table(struct ip6t_table *table)
+void ip6t_unregister_table(struct xt_table *table)
 {
+        struct xt_table_info *private;
         void *loc_cpu_entry;
 
-        down(&ip6t_mutex);
-        LIST_DELETE(&ip6t_tables, table);
-        up(&ip6t_mutex);
+        private = xt_unregister_table(table);
 
         /* Decrease module usage counts and free resources */
-        loc_cpu_entry = table->private->entries[raw_smp_processor_id()];
-        IP6T_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 tcpoff,
-                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, tcpoff + 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,
-          unsigned int protoff,
-          int *hotdrop)
-{
-        struct tcphdr _tcph, *th;
-        const struct ip6t_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, protoff, 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 & IP6T_TCP_INV_SRCPT)))
-                return 0;
-        if (!port_match(tcpinfo->dpts[0], tcpinfo->dpts[1],
-                        ntohs(th->dest),
-                        !!(tcpinfo->invflags & IP6T_TCP_INV_DSTPT)))
-                return 0;
-        if (!FWINVTCP((((unsigned char *)th)[13] & tcpinfo->flg_mask)
-                      == tcpinfo->flg_cmp,
-                      IP6T_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, protoff,
-                                     th->doff*4 - sizeof(*th),
-                                     tcpinfo->invflags & IP6T_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 ip6t_ip6 *ipv6,
-               void *matchinfo,
-               unsigned int matchsize,
-               unsigned int hook_mask)
-{
-        const struct ip6t_tcp *tcpinfo = matchinfo;
-
-        /* Must specify proto == TCP, and no unknown invflags */
-        return ipv6->proto == IPPROTO_TCP
-                && !(ipv6->invflags & IP6T_INV_PROTO)
-                && matchsize == IP6T_ALIGN(sizeof(struct ip6t_tcp))
-                && !(tcpinfo->invflags & ~IP6T_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,
-          unsigned int protoff,
-          int *hotdrop)
-{
-        struct udphdr _udph, *uh;
-        const struct ip6t_udp *udpinfo = matchinfo;
-
-        /* Must not be a fragment. */
-        if (offset)
-                return 0;
-
-        uh = skb_header_pointer(skb, protoff, 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 & IP6T_UDP_INV_SRCPT))
-                && port_match(udpinfo->dpts[0], udpinfo->dpts[1],
-                              ntohs(uh->dest),
-                              !!(udpinfo->invflags & IP6T_UDP_INV_DSTPT));
-}
-
-/* Called when user tries to insert an entry of this type. */
-static int
-udp_checkentry(const char *tablename,
-               const struct ip6t_ip6 *ipv6,
-               void *matchinfo,
-               unsigned int matchinfosize,
-               unsigned int hook_mask)
-{
-        const struct ip6t_udp *udpinfo = matchinfo;
-
-        /* Must specify proto == UDP, and no unknown invflags */
-        if (ipv6->proto != IPPROTO_UDP || (ipv6->invflags & IP6T_INV_PROTO)) {
-                duprintf("ip6t_udp: Protocol %u != %u\n", ipv6->proto,
-                         IPPROTO_UDP);
-                return 0;
-        }
-        if (matchinfosize != IP6T_ALIGN(sizeof(struct ip6t_udp))) {
-                duprintf("ip6t_udp: matchsize %u != %u\n",
-                         matchinfosize, IP6T_ALIGN(sizeof(struct ip6t_udp)));
-                return 0;
-        }
-        if (udpinfo->invflags & ~IP6T_UDP_INV_MASK) {
-                duprintf("ip6t_udp: unknown flags %X\n",
-                         udpinfo->invflags);
-                return 0;
-        }
-
-        return 1;
+        loc_cpu_entry = private->entries[raw_smp_processor_id()];
+        IP6T_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 */
@@ -1858,11 +1357,12 @@ icmp6_match(const struct sk_buff *skb,
 /* Called when user tries to insert an entry of this type. */
 static int
 icmp6_checkentry(const char *tablename,
-           const struct ip6t_ip6 *ipv6,
+           const void *entry,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)
 {
+        const struct ip6t_ip6 *ipv6 = entry;
         const struct ip6t_icmp *icmpinfo = matchinfo;
 
         /* Must specify proto == ICMP, and no unknown invflags */
@@ -1892,164 +1392,42 @@ static struct nf_sockopt_ops ip6t_sockopts = {
         .get            = do_ip6t_get_ctl,
 };
 
-static struct ip6t_match tcp_matchstruct = {
-        .name           = "tcp",
-        .match          = &tcp_match,
-        .checkentry     = &tcp_checkentry,
-};
-
-static struct ip6t_match udp_matchstruct = {
-        .name           = "udp",
-        .match          = &udp_match,
-        .checkentry     = &udp_checkentry,
-};
-
 static struct ip6t_match icmp6_matchstruct = {
         .name           = "icmp6",
         .match          = &icmp6_match,
         .checkentry     = &icmp6_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 ip6t_target *t,
-                               off_t start_offset, char *buffer, int length,
-                               off_t *pos, unsigned int *count)
-{
-        if (t == &ip6t_standard_target || t == &ip6t_error_target)
-                return 0;
-        return print_name((char *)t, start_offset, buffer, length, pos, count);
-}
-
-static int ip6t_get_tables(char *buffer, char **start, off_t offset, int length)
-{
-        off_t pos = 0;
-        unsigned int count = 0;
-
-        if (down_interruptible(&ip6t_mutex) != 0)
-                return 0;
-
-        LIST_FIND(&ip6t_tables, print_name, char *,
-                  offset, buffer, length, &pos, &count);
-
-        up(&ip6t_mutex);
-
-        /* `start' hack - see fs/proc/generic.c line ~105 */
-        *start=(char *)((unsigned long)count-offset);
-        return pos;
-}
-
-static int ip6t_get_targets(char *buffer, char **start, off_t offset, int length)
-{
-        off_t pos = 0;
-        unsigned int count = 0;
-
-        if (down_interruptible(&ip6t_mutex) != 0)
-                return 0;
-
-        LIST_FIND(&ip6t_target, print_target, struct ip6t_target *,
-                  offset, buffer, length, &pos, &count);
-
-        up(&ip6t_mutex);
-
-        *start = (char *)((unsigned long)count - offset);
-        return pos;
-}
-
-static int ip6t_get_matches(char *buffer, char **start, off_t offset, int length)
-{
-        off_t pos = 0;
-        unsigned int count = 0;
-
-        if (down_interruptible(&ip6t_mutex) != 0)
-                return 0;
-
-        LIST_FIND(&ip6t_match, print_name, char *,
-                  offset, buffer, length, &pos, &count);
-
-        up(&ip6t_mutex);
-
-        *start = (char *)((unsigned long)count - offset);
-        return pos;
-}
-
-static const struct { char *name; get_info_t *get_info; } ip6t_proc_entry[] =
-{ { "ip6_tables_names", ip6t_get_tables },
-  { "ip6_tables_targets", ip6t_get_targets },
-  { "ip6_tables_matches", ip6t_get_matches },
-  { NULL, NULL} };
-#endif /*CONFIG_PROC_FS*/
-
 static int __init init(void)
 {
         int ret;
 
+        xt_proto_init(AF_INET6);
+
         /* Noone else will be downing sem now, so we won't sleep */
-        down(&ip6t_mutex);
-        list_append(&ip6t_target, &ip6t_standard_target);
-        list_append(&ip6t_target, &ip6t_error_target);
-        list_append(&ip6t_match, &tcp_matchstruct);
-        list_append(&ip6t_match, &udp_matchstruct);
-        list_append(&ip6t_match, &icmp6_matchstruct);
-        up(&ip6t_mutex);
+        xt_register_target(AF_INET6, &ip6t_standard_target);
+        xt_register_target(AF_INET6, &ip6t_error_target);
+        xt_register_match(AF_INET6, &icmp6_matchstruct);
 
         /* Register setsockopt */
         ret = nf_register_sockopt(&ip6t_sockopts);
         if (ret < 0) {
                 duprintf("Unable to register sockopts.\n");
+                xt_proto_fini(AF_INET6);
                 return ret;
         }
 
-#ifdef CONFIG_PROC_FS
-        {
-                struct proc_dir_entry *proc;
-                int i;
-
-                for (i = 0; ip6t_proc_entry[i].name; i++) {
-                        proc = proc_net_create(ip6t_proc_entry[i].name, 0,
-                                               ip6t_proc_entry[i].get_info);
-                        if (!proc) {
-                                while (--i >= 0)
-                                       proc_net_remove(ip6t_proc_entry[i].name);
-                                nf_unregister_sockopt(&ip6t_sockopts);
-                                return -ENOMEM;
-                        }
-                        proc->owner = THIS_MODULE;
-                }
-        }
-#endif
-
-        printk("ip6_tables: (C) 2000-2002 Netfilter core team\n");
+        printk("ip6_tables: (C) 2000-2006 Netfilter Core Team\n");
         return 0;
 }
 
 static void __exit fini(void)
 {
         nf_unregister_sockopt(&ip6t_sockopts);
-#ifdef CONFIG_PROC_FS
-        {
-                int i;
-                for (i = 0; ip6t_proc_entry[i].name; i++)
-                        proc_net_remove(ip6t_proc_entry[i].name);
-        }
-#endif
+        xt_unregister_match(AF_INET6, &icmp6_matchstruct);
+        xt_unregister_target(AF_INET6, &ip6t_error_target);
+        xt_unregister_target(AF_INET6, &ip6t_standard_target);
+        xt_proto_fini(AF_INET6);
 }
 
 /*
@@ -2128,10 +1506,6 @@ int ipv6_find_hdr(const struct sk_buff *skb, unsigned int *offset,
 EXPORT_SYMBOL(ip6t_register_table);
 EXPORT_SYMBOL(ip6t_unregister_table);
 EXPORT_SYMBOL(ip6t_do_table);
-EXPORT_SYMBOL(ip6t_register_match);
-EXPORT_SYMBOL(ip6t_unregister_match);
-EXPORT_SYMBOL(ip6t_register_target);
-EXPORT_SYMBOL(ip6t_unregister_target);
 EXPORT_SYMBOL(ip6t_ext_hdr);
 EXPORT_SYMBOL(ipv6_find_hdr);
 EXPORT_SYMBOL(ip6_masked_addrcmp);
diff --git a/net/ipv6/netfilter/ip6t_HL.c b/net/ipv6/netfilter/ip6t_HL.c
index 8f5549b72720..306200c35057 100644
--- a/net/ipv6/netfilter/ip6t_HL.c
+++ b/net/ipv6/netfilter/ip6t_HL.c
@@ -62,7 +62,7 @@ static unsigned int ip6t_hl_target(struct sk_buff **pskb,
 }
 
 static int ip6t_hl_checkentry(const char *tablename,
-                const struct ip6t_entry *e,
+                const void *entry,
                 void *targinfo,
                 unsigned int targinfosize,
                 unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_LOG.c b/net/ipv6/netfilter/ip6t_LOG.c
index ae4653bfd654..fc19d8a4ca68 100644
--- a/net/ipv6/netfilter/ip6t_LOG.c
+++ b/net/ipv6/netfilter/ip6t_LOG.c
@@ -444,7 +444,7 @@ ip6t_log_target(struct sk_buff **pskb,
 
 
 static int ip6t_log_checkentry(const char *tablename,
-                               const struct ip6t_entry *e,
+                               const void *entry,
                                void *targinfo,
                                unsigned int targinfosize,
                                unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_MARK.c b/net/ipv6/netfilter/ip6t_MARK.c
deleted file mode 100644
index eab8fb864ee0..000000000000
--- a/net/ipv6/netfilter/ip6t_MARK.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/* This is a module which is used for setting the NFMARK field of an skb. */
-
-/* (C) 1999-2001 Marc Boucher <marc@mbsi.ca>
- *
- * 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/ip.h>
-#include <net/checksum.h>
-
-#include <linux/netfilter_ipv6/ip6_tables.h>
-#include <linux/netfilter_ipv6/ip6t_MARK.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
-
-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 ip6t_mark_target_info *markinfo = targinfo;
-
-        if((*pskb)->nfmark != markinfo->mark)
-                (*pskb)->nfmark = markinfo->mark;
-
-        return IP6T_CONTINUE;
-}
-
-static int
-checkentry(const char *tablename,
-           const struct ip6t_entry *e,
-           void *targinfo,
-           unsigned int targinfosize,
-           unsigned int hook_mask)
-{
-        if (targinfosize != IP6T_ALIGN(sizeof(struct ip6t_mark_target_info))) {
-                printk(KERN_WARNING "MARK: targinfosize %u != %Zu\n",
-                       targinfosize,
-                       IP6T_ALIGN(sizeof(struct ip6t_mark_target_info)));
-                return 0;
-        }
-
-        if (strcmp(tablename, "mangle") != 0) {
-                printk(KERN_WARNING "MARK: can only be called from \"mangle\" table, not \"%s\"\n", tablename);
-                return 0;
-        }
-
-        return 1;
-}
-
-static struct ip6t_target ip6t_mark_reg = { 
-        .name           = "MARK",
-        .target         = target,
-        .checkentry     = checkentry,
-        .me             = THIS_MODULE
-};
-
-static int __init init(void)
-{
-        printk(KERN_DEBUG "registering ipv6 mark target\n");
-        if (ip6t_register_target(&ip6t_mark_reg))
-                return -EINVAL;
-
-        return 0;
-}
-
-static void __exit fini(void)
-{
-        ip6t_unregister_target(&ip6t_mark_reg);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv6/netfilter/ip6t_NFQUEUE.c b/net/ipv6/netfilter/ip6t_NFQUEUE.c
deleted file mode 100644
index c6e3730e7409..000000000000
--- a/net/ipv6/netfilter/ip6t_NFQUEUE.c
+++ /dev/null
@@ -1,70 +0,0 @@
-/* ip6tables 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_ipv6/ip6_tables.h>
-#include <linux/netfilter_ipv4/ipt_NFQUEUE.h>
-
-MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
-MODULE_DESCRIPTION("ip6tables 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 ip6t_entry *e,
-           void *targinfo,
-           unsigned int targinfosize,
-           unsigned int hook_mask)
-{
-        if (targinfosize != IP6T_ALIGN(sizeof(struct ipt_NFQ_info))) {
-                printk(KERN_WARNING "NFQUEUE: targinfosize %u != %Zu\n",
-                       targinfosize,
-                       IP6T_ALIGN(sizeof(struct ipt_NFQ_info)));
-                return 0;
-        }
-
-        return 1;
-}
-
-static struct ip6t_target ipt_NFQ_reg = {
-        .name           = "NFQUEUE",
-        .target         = target,
-        .checkentry     = checkentry,
-        .me             = THIS_MODULE,
-};
-
-static int __init init(void)
-{
-        return ip6t_register_target(&ipt_NFQ_reg);
-}
-
-static void __exit fini(void)
-{
-        ip6t_unregister_target(&ipt_NFQ_reg);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv6/netfilter/ip6t_REJECT.c b/net/ipv6/netfilter/ip6t_REJECT.c
index b03e87adca93..c745717b4ce2 100644
--- a/net/ipv6/netfilter/ip6t_REJECT.c
+++ b/net/ipv6/netfilter/ip6t_REJECT.c
@@ -218,12 +218,13 @@ static unsigned int reject6_target(struct sk_buff **pskb,
 }
 
 static int check(const char *tablename,
-                 const struct ip6t_entry *e,
+                 const void *entry,
                  void *targinfo,
                  unsigned int targinfosize,
                  unsigned int hook_mask)
 {
         const struct ip6t_reject_info *rejinfo = targinfo;
+        const struct ip6t_entry *e = entry;
 
         if (targinfosize != IP6T_ALIGN(sizeof(struct ip6t_reject_info))) {
                 DEBUGP("ip6t_REJECT: targinfosize %u != 0\n", targinfosize);
diff --git a/net/ipv6/netfilter/ip6t_ah.c b/net/ipv6/netfilter/ip6t_ah.c
index f5c1a7ff4a1f..219a30365dff 100644
--- a/net/ipv6/netfilter/ip6t_ah.c
+++ b/net/ipv6/netfilter/ip6t_ah.c
@@ -98,7 +98,7 @@ 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 ip6t_ip6 *ip,
+          const void *entry,
           void *matchinfo,
           unsigned int matchinfosize,
           unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_dst.c b/net/ipv6/netfilter/ip6t_dst.c
index 48cf5f9efc95..80fe82669ce2 100644
--- a/net/ipv6/netfilter/ip6t_dst.c
+++ b/net/ipv6/netfilter/ip6t_dst.c
@@ -178,7 +178,7 @@ 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 ip6t_ip6 *ip,
+          const void *info,
           void *matchinfo,
           unsigned int matchinfosize,
           unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_esp.c b/net/ipv6/netfilter/ip6t_esp.c
index e1828f6d0a40..724285df8711 100644
--- a/net/ipv6/netfilter/ip6t_esp.c
+++ b/net/ipv6/netfilter/ip6t_esp.c
@@ -76,7 +76,7 @@ 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 ip6t_ip6 *ip,
+           const void *ip,
            void *matchinfo,
            unsigned int matchinfosize,
            unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_eui64.c b/net/ipv6/netfilter/ip6t_eui64.c
index 616c2cbcd54d..ddf5f571909c 100644
--- a/net/ipv6/netfilter/ip6t_eui64.c
+++ b/net/ipv6/netfilter/ip6t_eui64.c
@@ -62,7 +62,7 @@ match(const struct sk_buff *skb,
 
 static int
 ip6t_eui64_checkentry(const char *tablename,
-                   const struct ip6t_ip6 *ip,
+                   const void  *ip,
                    void *matchinfo,
                    unsigned int matchsize,
                    unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_frag.c b/net/ipv6/netfilter/ip6t_frag.c
index d1549b268669..a9964b946ed5 100644
--- a/net/ipv6/netfilter/ip6t_frag.c
+++ b/net/ipv6/netfilter/ip6t_frag.c
@@ -115,7 +115,7 @@ 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 ip6t_ip6 *ip,
+          const void *ip,
           void *matchinfo,
           unsigned int matchinfosize,
           unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_hbh.c b/net/ipv6/netfilter/ip6t_hbh.c
index e3bc8e2700e7..ed8ded18bbd4 100644
--- a/net/ipv6/netfilter/ip6t_hbh.c
+++ b/net/ipv6/netfilter/ip6t_hbh.c
@@ -178,7 +178,7 @@ 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 ip6t_ip6 *ip,
+          const void *entry,
           void *matchinfo,
           unsigned int matchinfosize,
           unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_hl.c b/net/ipv6/netfilter/ip6t_hl.c
index 0beaff5471dd..c5d9079f2d9d 100644
--- a/net/ipv6/netfilter/ip6t_hl.c
+++ b/net/ipv6/netfilter/ip6t_hl.c
@@ -48,7 +48,7 @@ static int match(const struct sk_buff *skb, const struct net_device *in,
         return 0;
 }
 
-static int checkentry(const char *tablename, const struct ip6t_ip6 *ip,
+static int checkentry(const char *tablename, const void *entry,
                       void *matchinfo, unsigned int matchsize,
                       unsigned int hook_mask)
 {
diff --git a/net/ipv6/netfilter/ip6t_ipv6header.c b/net/ipv6/netfilter/ip6t_ipv6header.c
index 32e67f05845b..fda1ceaf5a29 100644
--- a/net/ipv6/netfilter/ip6t_ipv6header.c
+++ b/net/ipv6/netfilter/ip6t_ipv6header.c
@@ -124,7 +124,7 @@ ipv6header_match(const struct sk_buff *skb,
 
 static int
 ipv6header_checkentry(const char *tablename,
-                      const struct ip6t_ip6 *ip,
+                      const void *ip,
                       void *matchinfo,
                       unsigned int matchsize,
                       unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_length.c b/net/ipv6/netfilter/ip6t_length.c
deleted file mode 100644
index e0537d3811d5..000000000000
--- a/net/ipv6/netfilter/ip6t_length.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/* Length Match - IPv6 Port */
-
-/* (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_ipv6/ip6t_length.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("James Morris <jmorris@intercode.com.au>");
-MODULE_DESCRIPTION("IPv6 packet length match");
-
-static 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)
-{
-        const struct ip6t_length_info *info = matchinfo;
-        u_int16_t pktlen = ntohs(skb->nh.ipv6h->payload_len) + sizeof(struct ipv6hdr);
-        
-        return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
-}
-
-static int
-checkentry(const char *tablename,
-           const struct ip6t_ip6 *ip,
-           void *matchinfo,
-           unsigned int matchsize,
-           unsigned int hook_mask)
-{
-        if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_length_info)))
-                return 0;
-
-        return 1;
-}
-
-static struct ip6t_match length_match = {
-        .name           = "length",
-        .match          = &match,
-        .checkentry     = &checkentry,
-        .me             = THIS_MODULE,
-};
-
-static int __init init(void)
-{
-        return ip6t_register_match(&length_match);
-}
-
-static void __exit fini(void)
-{
-        ip6t_unregister_match(&length_match);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv6/netfilter/ip6t_limit.c b/net/ipv6/netfilter/ip6t_limit.c
deleted file mode 100644
index fb782f610be2..000000000000
--- a/net/ipv6/netfilter/ip6t_limit.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/* Kernel module to control the rate
- *
- * 2 September 1999: Changed from the target RATE to the match
- *                   `limit', removed logging.  Did I mention that
- *                   Alexey is a fucking genius?
- *                   Rusty Russell (rusty@rustcorp.com.au).  */
-
-/* (C) 1999 Jérôme de Vivie <devivie@info.enserb.u-bordeaux.fr>
- * (C) 1999 Hervé Eychenne <eychenne@info.enserb.u-bordeaux.fr>
- *
- * 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/spinlock.h>
-#include <linux/interrupt.h>
-
-#include <linux/netfilter_ipv6/ip6_tables.h>
-#include <linux/netfilter_ipv6/ip6t_limit.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Herve Eychenne <rv@wallfire.org>");
-MODULE_DESCRIPTION("rate limiting within ip6tables");
-
-/* The algorithm used is the Simple Token Bucket Filter (TBF)
- * see net/sched/sch_tbf.c in the linux source tree
- */
-
-static DEFINE_SPINLOCK(limit_lock);
-
-/* Rusty: This is my (non-mathematically-inclined) understanding of
-   this algorithm.  The `average rate' in jiffies becomes your initial
-   amount of credit `credit' and the most credit you can ever have
-   `credit_cap'.  The `peak rate' becomes the cost of passing the
-   test, `cost'.
-
-   `prev' tracks the last packet hit: you gain one credit per jiffy.
-   If you get credit balance more than this, the extra credit is
-   discarded.  Every time the match passes, you lose `cost' credits;
-   if you don't have that many, the test fails.
-
-   See Alexey's formal explanation in net/sched/sch_tbf.c.
-
-   To avoid underflow, we multiply by 128 (ie. you get 128 credits per
-   jiffy).  Hence a cost of 2^32-1, means one pass per 32768 seconds
-   at 1024HZ (or one every 9 hours).  A cost of 1 means 12800 passes
-   per second at 100HZ.  */
-
-#define CREDITS_PER_JIFFY 128
-
-static int
-ip6t_limit_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)
-{
-        struct ip6t_rateinfo *r = ((struct ip6t_rateinfo *)matchinfo)->master;
-        unsigned long now = jiffies;
-
-        spin_lock_bh(&limit_lock);
-        r->credit += (now - xchg(&r->prev, now)) * CREDITS_PER_JIFFY;
-        if (r->credit > r->credit_cap)
-                r->credit = r->credit_cap;
-
-        if (r->credit >= r->cost) {
-                /* We're not limited. */
-                r->credit -= r->cost;
-                spin_unlock_bh(&limit_lock);
-                return 1;
-        }
-
-        spin_unlock_bh(&limit_lock);
-        return 0;
-}
-
-/* Precision saver. */
-static u_int32_t
-user2credits(u_int32_t user)
-{
-        /* If multiplying would overflow... */
-        if (user > 0xFFFFFFFF / (HZ*CREDITS_PER_JIFFY))
-                /* Divide first. */
-                return (user / IP6T_LIMIT_SCALE) * HZ * CREDITS_PER_JIFFY;
-
-        return (user * HZ * CREDITS_PER_JIFFY) / IP6T_LIMIT_SCALE;
-}
-
-static int
-ip6t_limit_checkentry(const char *tablename,
-                     const struct ip6t_ip6 *ip,
-                     void *matchinfo,
-                     unsigned int matchsize,
-                     unsigned int hook_mask)
-{
-        struct ip6t_rateinfo *r = matchinfo;
-
-        if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_rateinfo)))
-                return 0;
-
-        /* Check for overflow. */
-        if (r->burst == 0
-            || user2credits(r->avg * r->burst) < user2credits(r->avg)) {
-                printk("Call rusty: overflow in ip6t_limit: %u/%u\n",
-                       r->avg, r->burst);
-                return 0;
-        }
-
-        /* User avg in seconds * IP6T_LIMIT_SCALE: convert to jiffies *
-           128. */
-        r->prev = jiffies;
-        r->credit = user2credits(r->avg * r->burst);     /* Credits full. */
-        r->credit_cap = user2credits(r->avg * r->burst); /* Credits full. */
-        r->cost = user2credits(r->avg);
-
-        /* For SMP, we only want to use one set of counters. */
-        r->master = r;
-
-        return 1;
-}
-
-static struct ip6t_match ip6t_limit_reg = {
-        .name           = "limit",
-        .match          = ip6t_limit_match,
-        .checkentry     = ip6t_limit_checkentry,
-        .me             = THIS_MODULE,
-};
-
-static int __init init(void)
-{
-        if (ip6t_register_match(&ip6t_limit_reg))
-                return -EINVAL;
-        return 0;
-}
-
-static void __exit fini(void)
-{
-        ip6t_unregister_match(&ip6t_limit_reg);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv6/netfilter/ip6t_mac.c b/net/ipv6/netfilter/ip6t_mac.c
deleted file mode 100644
index c848152315bc..000000000000
--- a/net/ipv6/netfilter/ip6t_mac.c
+++ /dev/null
@@ -1,81 +0,0 @@
-/* Kernel module to match MAC address parameters. */
-
-/* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 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
- * published by the Free Software Foundation.
- */
-
-#include <linux/module.h>
-#include <linux/skbuff.h>
-#include <linux/if_ether.h>
-#include <linux/etherdevice.h>
-
-#include <linux/netfilter_ipv6/ip6t_mac.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("MAC address matching module for IPv6");
-MODULE_AUTHOR("Netfilter Core Teaam <coreteam@netfilter.org>");
-
-static 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)
-{
-    const struct ip6t_mac_info *info = matchinfo;
-
-    /* Is mac pointer valid? */
-    return (skb->mac.raw >= skb->head
-            && (skb->mac.raw + ETH_HLEN) <= skb->data
-            /* If so, compare... */
-            && ((!compare_ether_addr(eth_hdr(skb)->h_source, info->srcaddr))
-                ^ info->invert));
-}
-
-static int
-ip6t_mac_checkentry(const char *tablename,
-                   const struct ip6t_ip6 *ip,
-                   void *matchinfo,
-                   unsigned int matchsize,
-                   unsigned int hook_mask)
-{
-        if (hook_mask
-            & ~((1 << NF_IP6_PRE_ROUTING) | (1 << NF_IP6_LOCAL_IN)
-                | (1 << NF_IP6_FORWARD))) {
-                printk("ip6t_mac: only valid for PRE_ROUTING, LOCAL_IN or"
-                       " FORWARD\n");
-                return 0;
-        }
-
-        if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_mac_info)))
-                return 0;
-
-        return 1;
-}
-
-static struct ip6t_match mac_match = {
-        .name           = "mac",
-        .match          = &match,
-        .checkentry     = &ip6t_mac_checkentry,
-        .me             = THIS_MODULE,
-};
-
-static int __init init(void)
-{
-        return ip6t_register_match(&mac_match);
-}
-
-static void __exit fini(void)
-{
-        ip6t_unregister_match(&mac_match);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv6/netfilter/ip6t_mark.c b/net/ipv6/netfilter/ip6t_mark.c
deleted file mode 100644
index affc3de364fc..000000000000
--- a/net/ipv6/netfilter/ip6t_mark.c
+++ /dev/null
@@ -1,66 +0,0 @@
-/* Kernel module to match NFMARK values. */
-
-/* (C) 1999-2001 Marc Boucher <marc@mbsi.ca>
- *
- * 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_ipv6/ip6t_mark.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
-MODULE_DESCRIPTION("ip6tables mark match");
-
-static 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)
-{
-        const struct ip6t_mark_info *info = matchinfo;
-
-        return ((skb->nfmark & info->mask) == info->mark) ^ info->invert;
-}
-
-static int
-checkentry(const char *tablename,
-           const struct ip6t_ip6 *ip,
-           void *matchinfo,
-           unsigned int matchsize,
-           unsigned int hook_mask)
-{
-        if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_mark_info)))
-                return 0;
-
-        return 1;
-}
-
-static struct ip6t_match mark_match = {
-        .name           = "mark",
-        .match          = &match,
-        .checkentry     = &checkentry,
-        .me             = THIS_MODULE,
-};
-
-static int __init init(void)
-{
-        return ip6t_register_match(&mark_match);
-}
-
-static void __exit fini(void)
-{
-        ip6t_unregister_match(&mark_match);
-}
-
-module_init(init);
-module_exit(fini);
diff --git a/net/ipv6/netfilter/ip6t_multiport.c b/net/ipv6/netfilter/ip6t_multiport.c
index 6e3246153fa3..49f7829dfbc2 100644
--- a/net/ipv6/netfilter/ip6t_multiport.c
+++ b/net/ipv6/netfilter/ip6t_multiport.c
@@ -84,11 +84,12 @@ 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 ip6t_ip6 *ip,
+           const void *info,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)
 {
+        const struct ip6t_ip6 *ip = info;
         const struct ip6t_multiport *multiinfo = matchinfo;
 
         if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_multiport)))
diff --git a/net/ipv6/netfilter/ip6t_owner.c b/net/ipv6/netfilter/ip6t_owner.c
index 4de4cdad4b7d..5409b375b512 100644
--- a/net/ipv6/netfilter/ip6t_owner.c
+++ b/net/ipv6/netfilter/ip6t_owner.c
@@ -53,7 +53,7 @@ match(const struct sk_buff *skb,
 
 static int
 checkentry(const char *tablename,
-           const struct ip6t_ip6 *ip,
+           const void  *ip,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6t_rt.c b/net/ipv6/netfilter/ip6t_rt.c
index c1e770e45543..8465b4375855 100644
--- a/net/ipv6/netfilter/ip6t_rt.c
+++ b/net/ipv6/netfilter/ip6t_rt.c
@@ -183,7 +183,7 @@ 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 ip6t_ip6 *ip,
+          const void *entry,
           void *matchinfo,
           unsigned int matchinfosize,
           unsigned int hook_mask)
diff --git a/net/ipv6/netfilter/ip6table_filter.c b/net/ipv6/netfilter/ip6table_filter.c
index 4c0028671c20..ce4a968e1f70 100644
--- a/net/ipv6/netfilter/ip6table_filter.c
+++ b/net/ipv6/netfilter/ip6table_filter.c
@@ -97,6 +97,7 @@ static struct ip6t_table packet_filter = {
         .valid_hooks    = FILTER_VALID_HOOKS,
         .lock           = RW_LOCK_UNLOCKED,
         .me             = THIS_MODULE,
+        .af             = AF_INET6,
 };
 
 /* The work comes in here from netfilter.c. */
diff --git a/net/ipv6/netfilter/ip6table_mangle.c b/net/ipv6/netfilter/ip6table_mangle.c
index 85c1e6eada19..30a4627e000d 100644
--- a/net/ipv6/netfilter/ip6table_mangle.c
+++ b/net/ipv6/netfilter/ip6table_mangle.c
@@ -127,6 +127,7 @@ static struct ip6t_table packet_mangler = {
         .valid_hooks    = MANGLE_VALID_HOOKS,
         .lock           = RW_LOCK_UNLOCKED,
         .me             = THIS_MODULE,
+        .af             = AF_INET6,
 };
 
 /* The work comes in here from netfilter.c. */
diff --git a/net/ipv6/netfilter/ip6table_raw.c b/net/ipv6/netfilter/ip6table_raw.c
index c2982efd14af..db28ba3855e2 100644
--- a/net/ipv6/netfilter/ip6table_raw.c
+++ b/net/ipv6/netfilter/ip6table_raw.c
@@ -106,11 +106,12 @@ static struct
         }
 };
 
-static struct ip6t_table packet_raw = { 
+static struct xt_table packet_raw = { 
         .name = "raw", 
         .valid_hooks = RAW_VALID_HOOKS, 
         .lock = RW_LOCK_UNLOCKED, 
-        .me = THIS_MODULE
+        .me = THIS_MODULE,
+        .af = AF_INET6,
 };
 
 /* The work comes in here from netfilter.c. */
diff --git a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
index e57d6fc9957a..92ad53d8f8c3 100644
--- a/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
+++ b/net/ipv6/netfilter/nf_conntrack_l3proto_ipv6.c
@@ -584,7 +584,7 @@ MODULE_AUTHOR("Yasuyuki KOZAKAI @USAGI <yasuyuki.kozakai@toshiba.co.jp>");
 
 static int __init init(void)
 {
-        need_nf_conntrack();
+        need_conntrack();
         return init_or_cleanup(1);
 }
 
@@ -595,9 +595,3 @@ static void __exit fini(void)
 
 module_init(init);
 module_exit(fini);
-
-void need_ip6_conntrack(void)
-{
-}
-
-EXPORT_SYMBOL(need_ip6_conntrack);
diff --git a/net/ipv6/netfilter/nf_conntrack_reasm.c b/net/ipv6/netfilter/nf_conntrack_reasm.c
index f3e5ffbd592f..84ef9a13108d 100644
--- a/net/ipv6/netfilter/nf_conntrack_reasm.c
+++ b/net/ipv6/netfilter/nf_conntrack_reasm.c
@@ -70,8 +70,8 @@ struct nf_ct_frag6_skb_cb
 
 struct nf_ct_frag6_queue
 {
-        struct nf_ct_frag6_queue        *next;
-        struct list_head lru_list;              /* lru list member      */
+        struct hlist_node       list;
+        struct list_head        lru_list;       /* lru list member      */
 
         __u32                   id;             /* fragment id          */
         struct in6_addr         saddr;
@@ -90,14 +90,13 @@ struct nf_ct_frag6_queue
 #define FIRST_IN                2
 #define LAST_IN                 1
         __u16                   nhoffset;
-        struct nf_ct_frag6_queue        **pprev;
 };
 
 /* Hash table. */
 
 #define FRAG6Q_HASHSZ   64
 
-static struct nf_ct_frag6_queue *nf_ct_frag6_hash[FRAG6Q_HASHSZ];
+static struct hlist_head nf_ct_frag6_hash[FRAG6Q_HASHSZ];
 static DEFINE_RWLOCK(nf_ct_frag6_lock);
 static u32 nf_ct_frag6_hash_rnd;
 static LIST_HEAD(nf_ct_frag6_lru_list);
@@ -105,9 +104,7 @@ int nf_ct_frag6_nqueues = 0;
 
 static __inline__ void __fq_unlink(struct nf_ct_frag6_queue *fq)
 {
-        if (fq->next)
-                fq->next->pprev = fq->pprev;
-        *fq->pprev = fq->next;
+        hlist_del(&fq->list);
         list_del(&fq->lru_list);
         nf_ct_frag6_nqueues--;
 }
@@ -158,28 +155,18 @@ static void nf_ct_frag6_secret_rebuild(unsigned long dummy)
         get_random_bytes(&nf_ct_frag6_hash_rnd, sizeof(u32));
         for (i = 0; i < FRAG6Q_HASHSZ; i++) {
                 struct nf_ct_frag6_queue *q;
+                struct hlist_node *p, *n;
 
-                q = nf_ct_frag6_hash[i];
-                while (q) {
-                        struct nf_ct_frag6_queue *next = q->next;
+                hlist_for_each_entry_safe(q, p, n, &nf_ct_frag6_hash[i], list) {
                         unsigned int hval = ip6qhashfn(q->id,
                                                        &q->saddr,
                                                        &q->daddr);
-
                         if (hval != i) {
-                                /* Unlink. */
-                                if (q->next)
-                                        q->next->pprev = q->pprev;
-                                *q->pprev = q->next;
-
+                                hlist_del(&q->list);
                                 /* Relink to new hash chain. */
-                                if ((q->next = nf_ct_frag6_hash[hval]) != NULL)
-                                        q->next->pprev = &q->next;
-                                nf_ct_frag6_hash[hval] = q;
-                                q->pprev = &nf_ct_frag6_hash[hval];
+                                hlist_add_head(&q->list,
+                                               &nf_ct_frag6_hash[hval]);
                         }
-
-                        q = next;
                 }
         }
         write_unlock(&nf_ct_frag6_lock);
@@ -314,15 +301,17 @@ out:
 
 /* Creation primitives. */
 
-
 static struct nf_ct_frag6_queue *nf_ct_frag6_intern(unsigned int hash,
                                           struct nf_ct_frag6_queue *fq_in)
 {
         struct nf_ct_frag6_queue *fq;
+#ifdef CONFIG_SMP
+        struct hlist_node *n;
+#endif
 
         write_lock(&nf_ct_frag6_lock);
 #ifdef CONFIG_SMP
-        for (fq = nf_ct_frag6_hash[hash]; fq; fq = fq->next) {
+        hlist_for_each_entry(fq, n, &nf_ct_frag6_hash[hash], list) {
                 if (fq->id == fq_in->id && 
                     !ipv6_addr_cmp(&fq_in->saddr, &fq->saddr) &&
                     !ipv6_addr_cmp(&fq_in->daddr, &fq->daddr)) {
@@ -340,10 +329,7 @@ static struct nf_ct_frag6_queue *nf_ct_frag6_intern(unsigned int hash,
                 atomic_inc(&fq->refcnt);
 
         atomic_inc(&fq->refcnt);
-        if ((fq->next = nf_ct_frag6_hash[hash]) != NULL)
-                fq->next->pprev = &fq->next;
-        nf_ct_frag6_hash[hash] = fq;
-        fq->pprev = &nf_ct_frag6_hash[hash];
+        hlist_add_head(&fq->list, &nf_ct_frag6_hash[hash]);
         INIT_LIST_HEAD(&fq->lru_list);
         list_add_tail(&fq->lru_list, &nf_ct_frag6_lru_list);
         nf_ct_frag6_nqueues++;
@@ -384,10 +370,11 @@ static __inline__ struct nf_ct_frag6_queue *
 fq_find(u32 id, struct in6_addr *src, struct in6_addr *dst)
 {
         struct nf_ct_frag6_queue *fq;
+        struct hlist_node *n;
         unsigned int hash = ip6qhashfn(id, src, dst);
 
         read_lock(&nf_ct_frag6_lock);
-        for (fq = nf_ct_frag6_hash[hash]; fq; fq = fq->next) {
+        hlist_for_each_entry(fq, n, &nf_ct_frag6_hash[hash], list) {
                 if (fq->id == id && 
                     !ipv6_addr_cmp(src, &fq->saddr) &&
                     !ipv6_addr_cmp(dst, &fq->daddr)) {
diff --git a/net/netfilter/Kconfig b/net/netfilter/Kconfig
index 7d55f9cbd853..99c0a0fa4a97 100644
--- a/net/netfilter/Kconfig
+++ b/net/netfilter/Kconfig
@@ -103,3 +103,261 @@ config NF_CT_NETLINK
           This option enables support for a netlink-based userspace interface
 
 endmenu
+
+config NETFILTER_XTABLES
+        tristate "Netfilter Xtables support (required for ip_tables)"
+        help
+          This is required if you intend to use any of ip_tables,
+          ip6_tables or arp_tables.
+
+# alphabetically ordered list of targets
+
+config NETFILTER_XT_TARGET_CLASSIFY
+        tristate '"CLASSIFY" target support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_TARGET_CONNMARK
+        tristate  '"CONNMARK" target support'
+        depends on NETFILTER_XTABLES
+        depends on IP_NF_MANGLE || IP6_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 NETFILTER_XT_TARGET_MARK
+        tristate '"MARK" target support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_TARGET_NFQUEUE
+        tristate '"NFQUEUE" target Support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_TARGET_NOTRACK
+        tristate  '"NOTRACK" target support'
+        depends on NETFILTER_XTABLES
+        depends on IP_NF_RAW || IP6_NF_RAW
+        depends on IP_NF_CONNTRACK || NF_CONNTRACK
+        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'.
+
+config NETFILTER_XT_MATCH_COMMENT
+        tristate  '"comment" match support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_MATCH_CONNBYTES
+        tristate  '"connbytes" per-connection counter match support'
+        depends on NETFILTER_XTABLES
+        depends on (IP_NF_CONNTRACK && IP_NF_CT_ACCT) || NF_CT_ACCT
+        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 NETFILTER_XT_MATCH_CONNMARK
+        tristate  '"connmark" connection mark match support'
+        depends on NETFILTER_XTABLES
+        depends on (IP_NF_CONNTRACK && IP_NF_CONNTRACK_MARK) || NF_CONNTRACK_MARK
+        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 NETFILTER_XT_MATCH_CONNTRACK
+        tristate '"conntrack" connection tracking match support'
+        depends on NETFILTER_XTABLES
+        depends on IP_NF_CONNTRACK || NF_CONNTRACK
+        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 NETFILTER_XT_MATCH_DCCP
+        tristate  '"DCCP" protocol match support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_MATCH_HELPER
+        tristate '"helper" match support'
+        depends on NETFILTER_XTABLES
+        depends on IP_NF_CONNTRACK || NF_CONNTRACK
+        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 NETFILTER_XT_MATCH_LENGTH
+        tristate '"length" match support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_MATCH_LIMIT
+        tristate '"limit" match support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_MATCH_MAC
+        tristate '"mac" address match support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_MATCH_MARK
+        tristate '"mark" match support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_MATCH_PHYSDEV
+        tristate '"physdev" match support'
+        depends on NETFILTER_XTABLES && 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 NETFILTER_XT_MATCH_PKTTYPE
+        tristate '"pkttype" packet type match support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_MATCH_REALM
+        tristate  '"realm" match support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_MATCH_SCTP
+        tristate  '"sctp" protocol match support'
+        depends on NETFILTER_XTABLES
+        help
+          With this option enabled, you will be able to use the 
+          `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 NETFILTER_XT_MATCH_STATE
+        tristate '"state" match support'
+        depends on NETFILTER_XTABLES
+        depends on IP_NF_CONNTRACK || NF_CONNTRACK
+        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 NETFILTER_XT_MATCH_STRING
+        tristate  '"string" match support'
+        depends on NETFILTER_XTABLES
+        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 NETFILTER_XT_MATCH_TCPMSS
+        tristate '"tcpmss" match support'
+        depends on NETFILTER_XTABLES
+        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.
+
diff --git a/net/netfilter/Makefile b/net/netfilter/Makefile
index cb2183145c37..746172ebc91b 100644
--- a/net/netfilter/Makefile
+++ b/net/netfilter/Makefile
@@ -1,4 +1,5 @@
 netfilter-objs := core.o nf_log.o nf_queue.o nf_sockopt.o
+nf_conntrack-objs       := nf_conntrack_core.o nf_conntrack_standalone.o nf_conntrack_l3proto_generic.o nf_conntrack_proto_generic.o nf_conntrack_proto_tcp.o nf_conntrack_proto_udp.o
 
 obj-$(CONFIG_NETFILTER) = netfilter.o
 
@@ -6,13 +7,43 @@ obj-$(CONFIG_NETFILTER_NETLINK) += nfnetlink.o
 obj-$(CONFIG_NETFILTER_NETLINK_QUEUE) += nfnetlink_queue.o
 obj-$(CONFIG_NETFILTER_NETLINK_LOG) += nfnetlink_log.o
 
-nf_conntrack-objs       := nf_conntrack_core.o nf_conntrack_standalone.o nf_conntrack_l3proto_generic.o nf_conntrack_proto_generic.o nf_conntrack_proto_tcp.o nf_conntrack_proto_udp.o
-
+# connection tracking
 obj-$(CONFIG_NF_CONNTRACK) += nf_conntrack.o
-obj-$(CONFIG_NF_CONNTRACK_FTP) += nf_conntrack_ftp.o
 
 # SCTP protocol connection tracking
 obj-$(CONFIG_NF_CT_PROTO_SCTP) += nf_conntrack_proto_sctp.o
 
 # netlink interface for nf_conntrack
 obj-$(CONFIG_NF_CT_NETLINK) += nf_conntrack_netlink.o
+
+# connection tracking helpers
+obj-$(CONFIG_NF_CONNTRACK_FTP) += nf_conntrack_ftp.o
+
+# generic X tables 
+obj-$(CONFIG_NETFILTER_XTABLES) += x_tables.o xt_tcpudp.o
+
+# targets
+obj-$(CONFIG_NETFILTER_XT_TARGET_CLASSIFY) += xt_CLASSIFY.o
+obj-$(CONFIG_NETFILTER_XT_TARGET_CONNMARK) += xt_CONNMARK.o
+obj-$(CONFIG_NETFILTER_XT_TARGET_MARK) += xt_MARK.o
+obj-$(CONFIG_NETFILTER_XT_TARGET_NFQUEUE) += xt_NFQUEUE.o
+obj-$(CONFIG_NETFILTER_XT_TARGET_NOTRACK) += xt_NOTRACK.o
+
+# matches
+obj-$(CONFIG_NETFILTER_XT_MATCH_COMMENT) += xt_comment.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_CONNBYTES) += xt_connbytes.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_CONNMARK) += xt_connmark.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_CONNTRACK) += xt_conntrack.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_DCCP) += xt_dccp.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_HELPER) += xt_helper.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_LENGTH) += xt_length.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_LIMIT) += xt_limit.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_MAC) += xt_mac.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_MARK) += xt_mark.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_PKTTYPE) += xt_pkttype.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_REALM) += xt_realm.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_SCTP) += xt_sctp.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_STATE) += xt_state.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_STRING) += xt_string.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_TCPMSS) += xt_tcpmss.o
+obj-$(CONFIG_NETFILTER_XT_MATCH_PHYSDEV) += xt_physdev.o
diff --git a/net/netfilter/nf_conntrack_standalone.c b/net/netfilter/nf_conntrack_standalone.c
index 3531d142f693..617599aeeead 100644
--- a/net/netfilter/nf_conntrack_standalone.c
+++ b/net/netfilter/nf_conntrack_standalone.c
@@ -821,7 +821,7 @@ module_exit(fini);
 
 /* Some modules need us, but don't depend directly on any symbol.
    They should call this. */
-void need_nf_conntrack(void)
+void need_conntrack(void)
 {
 }
 
@@ -841,7 +841,7 @@ EXPORT_SYMBOL(nf_conntrack_protocol_unregister);
 EXPORT_SYMBOL(nf_ct_invert_tuplepr);
 EXPORT_SYMBOL(nf_conntrack_alter_reply);
 EXPORT_SYMBOL(nf_conntrack_destroyed);
-EXPORT_SYMBOL(need_nf_conntrack);
+EXPORT_SYMBOL(need_conntrack);
 EXPORT_SYMBOL(nf_conntrack_helper_register);
 EXPORT_SYMBOL(nf_conntrack_helper_unregister);
 EXPORT_SYMBOL(nf_ct_iterate_cleanup);
diff --git a/net/netfilter/x_tables.c b/net/netfilter/x_tables.c
new file mode 100644
index 000000000000..d7817afc6b96
--- /dev/null
+++ b/net/netfilter/x_tables.c
@@ -0,0 +1,624 @@
+/*
+ * x_tables core - Backend for {ip,ip6,arp}_tables
+ *
+ * Copyright (C) 2006-2006 Harald Welte <laforge@netfilter.org>
+ *
+ * Based on existing ip_tables code which is
+ *   Copyright (C) 1999 Paul `Rusty' Russell & Michael J. Neuling
+ *   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
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/kernel.h>
+#include <linux/socket.h>
+#include <linux/net.h>
+#include <linux/proc_fs.h>
+#include <linux/seq_file.h>
+#include <linux/string.h>
+#include <linux/vmalloc.h>
+
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter_arp.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
+MODULE_DESCRIPTION("[ip,ip6,arp]_tables backend module");
+
+#define SMP_ALIGN(x) (((x) + SMP_CACHE_BYTES-1) & ~(SMP_CACHE_BYTES-1))
+
+struct xt_af {
+        struct semaphore mutex;
+        struct list_head match;
+        struct list_head target;
+        struct list_head tables;
+};
+
+static struct xt_af *xt;
+
+#ifdef DEBUG_IP_FIREWALL_USER
+#define duprintf(format, args...) printk(format , ## args)
+#else
+#define duprintf(format, args...)
+#endif
+
+enum {
+        TABLE,
+        TARGET,
+        MATCH,
+};
+
+/* Registration hooks for targets. */
+int
+xt_register_target(int af, struct xt_target *target)
+{
+        int ret;
+
+        ret = down_interruptible(&xt[af].mutex);
+        if (ret != 0)
+                return ret;
+        list_add(&target->list, &xt[af].target);
+        up(&xt[af].mutex);
+        return ret;
+}
+EXPORT_SYMBOL(xt_register_target);
+
+void
+xt_unregister_target(int af, struct xt_target *target)
+{
+        down(&xt[af].mutex);
+        LIST_DELETE(&xt[af].target, target);
+        up(&xt[af].mutex);
+}
+EXPORT_SYMBOL(xt_unregister_target);
+
+int
+xt_register_match(int af, struct xt_match *match)
+{
+        int ret;
+
+        ret = down_interruptible(&xt[af].mutex);
+        if (ret != 0)
+                return ret;
+
+        list_add(&match->list, &xt[af].match);
+        up(&xt[af].mutex);
+
+        return ret;
+}
+EXPORT_SYMBOL(xt_register_match);
+
+void
+xt_unregister_match(int af, struct xt_match *match)
+{
+        down(&xt[af].mutex);
+        LIST_DELETE(&xt[af].match, match);
+        up(&xt[af].mutex);
+}
+EXPORT_SYMBOL(xt_unregister_match);
+
+
+/*
+ * 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 match, grabs ref.  Returns ERR_PTR() on error. */
+struct xt_match *xt_find_match(int af, const char *name, u8 revision)
+{
+        struct xt_match *m;
+        int err = 0;
+
+        if (down_interruptible(&xt[af].mutex) != 0)
+                return ERR_PTR(-EINTR);
+
+        list_for_each_entry(m, &xt[af].match, list) {
+                if (strcmp(m->name, name) == 0) {
+                        if (m->revision == revision) {
+                                if (try_module_get(m->me)) {
+                                        up(&xt[af].mutex);
+                                        return m;
+                                }
+                        } else
+                                err = -EPROTOTYPE; /* Found something. */
+                }
+        }
+        up(&xt[af].mutex);
+        return ERR_PTR(err);
+}
+EXPORT_SYMBOL(xt_find_match);
+
+/* Find target, grabs ref.  Returns ERR_PTR() on error. */
+struct xt_target *xt_find_target(int af, const char *name, u8 revision)
+{
+        struct xt_target *t;
+        int err = 0;
+
+        if (down_interruptible(&xt[af].mutex) != 0)
+                return ERR_PTR(-EINTR);
+
+        list_for_each_entry(t, &xt[af].target, list) {
+                if (strcmp(t->name, name) == 0) {
+                        if (t->revision == revision) {
+                                if (try_module_get(t->me)) {
+                                        up(&xt[af].mutex);
+                                        return t;
+                                }
+                        } else
+                                err = -EPROTOTYPE; /* Found something. */
+                }
+        }
+        up(&xt[af].mutex);
+        return ERR_PTR(err);
+}
+EXPORT_SYMBOL(xt_find_target);
+
+static const char *xt_prefix[NPROTO] = {
+        [AF_INET]       = "ipt_%s",
+        [AF_INET6]      = "ip6t_%s",
+        [NF_ARP]        = "arpt_%s",
+};
+
+struct xt_target *xt_request_find_target(int af, const char *name, u8 revision)
+{
+        struct xt_target *target;
+
+        target = try_then_request_module(xt_find_target(af, name, revision),
+                                         xt_prefix[af], name);
+        if (IS_ERR(target) || !target)
+                return NULL;
+        return target;
+}
+EXPORT_SYMBOL_GPL(xt_request_find_target);
+
+static int match_revfn(int af, const char *name, u8 revision, int *bestp)
+{
+        struct xt_match *m;
+        int have_rev = 0;
+
+        list_for_each_entry(m, &xt[af].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(int af, const char *name, u8 revision, int *bestp)
+{
+        struct xt_target *t;
+        int have_rev = 0;
+
+        list_for_each_entry(t, &xt[af].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) */
+int xt_find_revision(int af, const char *name, u8 revision, int target,
+                     int *err)
+{
+        int have_rev, best = -1;
+
+        if (down_interruptible(&xt[af].mutex) != 0) {
+                *err = -EINTR;
+                return 1;
+        }
+        if (target == 1)
+                have_rev = target_revfn(af, name, revision, &best);
+        else
+                have_rev = match_revfn(af, name, revision, &best);
+        up(&xt[af].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;
+}
+EXPORT_SYMBOL_GPL(xt_find_revision);
+
+struct xt_table_info *xt_alloc_table_info(unsigned int size)
+{
+        struct xt_table_info *newinfo;
+        int cpu;
+
+        /* Pedantry: prevent them from hitting BUG() in vmalloc.c --RR */
+        if ((SMP_ALIGN(size) >> PAGE_SHIFT) + 2 > num_physpages)
+                return NULL;
+
+        newinfo = kzalloc(sizeof(struct xt_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) {
+                        xt_free_table_info(newinfo);
+                        return NULL;
+                }
+        }
+
+        return newinfo;
+}
+EXPORT_SYMBOL(xt_alloc_table_info);
+
+void xt_free_table_info(struct xt_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);
+}
+EXPORT_SYMBOL(xt_free_table_info);
+
+/* Find table by name, grabs mutex & ref.  Returns ERR_PTR() on error. */
+struct xt_table *xt_find_table_lock(int af, const char *name)
+{
+        struct xt_table *t;
+
+        if (down_interruptible(&xt[af].mutex) != 0)
+                return ERR_PTR(-EINTR);
+
+        list_for_each_entry(t, &xt[af].tables, list)
+                if (strcmp(t->name, name) == 0 && try_module_get(t->me))
+                        return t;
+        up(&xt[af].mutex);
+        return NULL;
+}
+EXPORT_SYMBOL_GPL(xt_find_table_lock);
+
+void xt_table_unlock(struct xt_table *table)
+{
+        up(&xt[table->af].mutex);
+}
+EXPORT_SYMBOL_GPL(xt_table_unlock);
+
+
+struct xt_table_info *
+xt_replace_table(struct xt_table *table,
+              unsigned int num_counters,
+              struct xt_table_info *newinfo,
+              int *error)
+{
+        struct xt_table_info *oldinfo, *private;
+
+        /* Do the substitution. */
+        write_lock_bh(&table->lock);
+        private = table->private;
+        /* Check inside lock: is the old number correct? */
+        if (num_counters != private->number) {
+                duprintf("num_counters != table->private->number (%u/%u)\n",
+                         num_counters, private->number);
+                write_unlock_bh(&table->lock);
+                *error = -EAGAIN;
+                return NULL;
+        }
+        oldinfo = private;
+        table->private = newinfo;
+        newinfo->initial_entries = oldinfo->initial_entries;
+        write_unlock_bh(&table->lock);
+
+        return oldinfo;
+}
+EXPORT_SYMBOL_GPL(xt_replace_table);
+
+int xt_register_table(struct xt_table *table,
+                      struct xt_table_info *bootstrap,
+                      struct xt_table_info *newinfo)
+{
+        int ret;
+        struct xt_table_info *private;
+
+        ret = down_interruptible(&xt[table->af].mutex);
+        if (ret != 0)
+                return ret;
+
+        /* Don't autoload: we'd eat our tail... */
+        if (list_named_find(&xt[table->af].tables, table->name)) {
+                ret = -EEXIST;
+                goto unlock;
+        }
+
+        /* Simplifies replace_table code. */
+        table->private = bootstrap;
+        if (!xt_replace_table(table, 0, newinfo, &ret))
+                goto unlock;
+
+        private = table->private;
+        duprintf("table->private->number = %u\n", private->number);
+
+        /* save number of initial entries */
+        private->initial_entries = private->number;
+
+        rwlock_init(&table->lock);
+        list_prepend(&xt[table->af].tables, table);
+
+        ret = 0;
+ unlock:
+        up(&xt[table->af].mutex);
+        return ret;
+}
+EXPORT_SYMBOL_GPL(xt_register_table);
+
+void *xt_unregister_table(struct xt_table *table)
+{
+        struct xt_table_info *private;
+
+        down(&xt[table->af].mutex);
+        private = table->private;
+        LIST_DELETE(&xt[table->af].tables, table);
+        up(&xt[table->af].mutex);
+
+        return private;
+}
+EXPORT_SYMBOL_GPL(xt_unregister_table);
+
+#ifdef CONFIG_PROC_FS
+static char *xt_proto_prefix[NPROTO] = {
+        [AF_INET]       = "ip",
+        [AF_INET6]      = "ip6",
+        [NF_ARP]        = "arp",
+};
+
+static struct list_head *xt_get_idx(struct list_head *list, struct seq_file *seq, loff_t pos)
+{
+        struct list_head *head = list->next;
+
+        if (!head || list_empty(list))
+                return NULL;
+
+        while (pos && (head = head->next)) {
+                if (head == list)
+                        return NULL;
+                pos--;
+        }
+        return pos ? NULL : head;
+}
+
+static struct list_head *type2list(u_int16_t af, u_int16_t type)
+{
+        struct list_head *list;
+
+        switch (type) {
+        case TARGET:
+                list = &xt[af].target;
+                break;
+        case MATCH:
+                list = &xt[af].match;
+                break;
+        case TABLE:
+                list = &xt[af].tables;
+                break;
+        default:
+                list = NULL;
+                break;
+        }
+
+        return list;
+}
+
+static void *xt_tgt_seq_start(struct seq_file *seq, loff_t *pos)
+{
+        struct proc_dir_entry *pde = (struct proc_dir_entry *) seq->private;
+        u_int16_t af = (unsigned long)pde->data & 0xffff;
+        u_int16_t type = (unsigned long)pde->data >> 16;
+        struct list_head *list;
+
+        if (af >= NPROTO)
+                return NULL;
+
+        list = type2list(af, type);
+        if (!list)
+                return NULL;
+
+        if (down_interruptible(&xt[af].mutex) != 0)
+                return NULL;
+        
+        return xt_get_idx(list, seq, *pos);
+}
+
+static void *xt_tgt_seq_next(struct seq_file *seq, void *v, loff_t *pos)
+{
+        struct proc_dir_entry *pde = seq->private;
+        u_int16_t af = (unsigned long)pde->data & 0xffff;
+        u_int16_t type = (unsigned long)pde->data >> 16;
+        struct list_head *list;
+
+        if (af >= NPROTO)
+                return NULL;
+        
+        list = type2list(af, type);
+        if (!list)
+                return NULL;
+
+        (*pos)++;
+        return xt_get_idx(list, seq, *pos);
+}
+
+static void xt_tgt_seq_stop(struct seq_file *seq, void *v)
+{
+        struct proc_dir_entry *pde = seq->private;
+        u_int16_t af = (unsigned long)pde->data & 0xffff;
+
+        up(&xt[af].mutex);
+}
+
+static int xt_name_seq_show(struct seq_file *seq, void *v)
+{
+        char *name = (char *)v + sizeof(struct list_head);
+
+        if (strlen(name))
+                return seq_printf(seq, "%s\n", name);
+        else
+                return 0;
+}
+
+static struct seq_operations xt_tgt_seq_ops = {
+        .start  = xt_tgt_seq_start,
+        .next   = xt_tgt_seq_next,
+        .stop   = xt_tgt_seq_stop,
+        .show   = xt_name_seq_show,
+};
+
+static int xt_tgt_open(struct inode *inode, struct file *file)
+{
+        int ret;
+
+        ret = seq_open(file, &xt_tgt_seq_ops);
+        if (!ret) {
+                struct seq_file *seq = file->private_data;
+                struct proc_dir_entry *pde = PDE(inode);
+
+                seq->private = pde;
+        }
+
+        return ret;
+}
+
+static struct file_operations xt_file_ops = {
+        .owner   = THIS_MODULE,
+        .open    = xt_tgt_open,
+        .read    = seq_read,
+        .llseek  = seq_lseek,
+        .release = seq_release,
+};
+
+#define FORMAT_TABLES   "_tables_names"
+#define FORMAT_MATCHES  "_tables_matches"
+#define FORMAT_TARGETS  "_tables_targets"
+
+#endif /* CONFIG_PROC_FS */
+
+int xt_proto_init(int af)
+{
+#ifdef CONFIG_PROC_FS
+        char buf[XT_FUNCTION_MAXNAMELEN];
+        struct proc_dir_entry *proc;
+#endif
+
+        if (af >= NPROTO)
+                return -EINVAL;
+
+
+#ifdef CONFIG_PROC_FS
+        strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+        strlcat(buf, FORMAT_TABLES, sizeof(buf));
+        proc = proc_net_fops_create(buf, 0440, &xt_file_ops);
+        if (!proc)
+                goto out;
+        proc->data = (void *) ((unsigned long) af | (TABLE << 16));
+
+
+        strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+        strlcat(buf, FORMAT_MATCHES, sizeof(buf));
+        proc = proc_net_fops_create(buf, 0440, &xt_file_ops);
+        if (!proc)
+                goto out_remove_tables;
+        proc->data = (void *) ((unsigned long) af | (MATCH << 16));
+
+        strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+        strlcat(buf, FORMAT_TARGETS, sizeof(buf));
+        proc = proc_net_fops_create(buf, 0440, &xt_file_ops);
+        if (!proc)
+                goto out_remove_matches;
+        proc->data = (void *) ((unsigned long) af | (TARGET << 16));
+#endif
+
+        return 0;
+
+#ifdef CONFIG_PROC_FS
+out_remove_matches:
+        strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+        strlcat(buf, FORMAT_MATCHES, sizeof(buf));
+        proc_net_remove(buf);
+
+out_remove_tables:
+        strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+        strlcat(buf, FORMAT_TABLES, sizeof(buf));
+        proc_net_remove(buf);
+out:
+        return -1;
+#endif
+}
+EXPORT_SYMBOL_GPL(xt_proto_init);
+
+void xt_proto_fini(int af)
+{
+#ifdef CONFIG_PROC_FS
+        char buf[XT_FUNCTION_MAXNAMELEN];
+
+        strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+        strlcat(buf, FORMAT_TABLES, sizeof(buf));
+        proc_net_remove(buf);
+
+        strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+        strlcat(buf, FORMAT_TARGETS, sizeof(buf));
+        proc_net_remove(buf);
+
+        strlcpy(buf, xt_proto_prefix[af], sizeof(buf));
+        strlcat(buf, FORMAT_MATCHES, sizeof(buf));
+        proc_net_remove(buf);
+#endif /*CONFIG_PROC_FS*/
+}
+EXPORT_SYMBOL_GPL(xt_proto_fini);
+
+
+static int __init xt_init(void)
+{
+        int i;
+
+        xt = kmalloc(sizeof(struct xt_af) * NPROTO, GFP_KERNEL);
+        if (!xt)
+                return -ENOMEM;
+
+        for (i = 0; i < NPROTO; i++) {
+                init_MUTEX(&xt[i].mutex);
+                INIT_LIST_HEAD(&xt[i].target);
+                INIT_LIST_HEAD(&xt[i].match);
+                INIT_LIST_HEAD(&xt[i].tables);
+        }
+        return 0;
+}
+
+static void __exit xt_fini(void)
+{
+        kfree(xt);
+}
+
+module_init(xt_init);
+module_exit(xt_fini);
+
diff --git a/net/ipv4/netfilter/ipt_CLASSIFY.c b/net/netfilter/xt_CLASSIFY.c
index dab78d8bd494..78ee266a12ee 100644
--- a/net/ipv4/netfilter/ipt_CLASSIFY.c
+++ b/net/netfilter/xt_CLASSIFY.c
@@ -15,12 +15,13 @@
 #include <linux/ip.h>
 #include <net/checksum.h>
 
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_CLASSIFY.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_CLASSIFY.h>
 
 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
 MODULE_LICENSE("GPL");
 MODULE_DESCRIPTION("iptables qdisc classification target module");
+MODULE_ALIAS("ipt_CLASSIFY");
 
 static unsigned int
 target(struct sk_buff **pskb,
@@ -30,25 +31,25 @@ target(struct sk_buff **pskb,
        const void *targinfo,
        void *userinfo)
 {
-        const struct ipt_classify_target_info *clinfo = targinfo;
+        const struct xt_classify_target_info *clinfo = targinfo;
 
-        if((*pskb)->priority != clinfo->priority) 
+        if ((*pskb)->priority != clinfo->priority)
                 (*pskb)->priority = clinfo->priority;
 
-        return IPT_CONTINUE;
+        return XT_CONTINUE;
 }
 
 static int
 checkentry(const char *tablename,
-           const struct ipt_entry *e,
+           const void *e,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
 {
-        if (targinfosize != IPT_ALIGN(sizeof(struct ipt_classify_target_info))){
+        if (targinfosize != XT_ALIGN(sizeof(struct xt_classify_target_info))){
                 printk(KERN_ERR "CLASSIFY: invalid size (%u != %Zu).\n",
                        targinfosize,
-                       IPT_ALIGN(sizeof(struct ipt_classify_target_info)));
+                       XT_ALIGN(sizeof(struct xt_classify_target_info)));
                 return 0;
         }
         
@@ -69,21 +70,39 @@ checkentry(const char *tablename,
         return 1;
 }
 
-static struct ipt_target ipt_classify_reg = { 
+static struct xt_target classify_reg = { 
+        .name           = "CLASSIFY", 
+        .target         = target,
+        .checkentry     = checkentry,
+        .me             = THIS_MODULE,
+};
+static struct xt_target classify6_reg = { 
         .name           = "CLASSIFY", 
         .target         = target,
         .checkentry     = checkentry,
         .me             = THIS_MODULE,
 };
 
+
 static int __init init(void)
 {
-        return ipt_register_target(&ipt_classify_reg);
+        int ret;
+
+        ret = xt_register_target(AF_INET, &classify_reg);
+        if (ret)
+                return ret;
+
+        ret = xt_register_target(AF_INET6, &classify6_reg);
+        if (ret)
+                xt_unregister_target(AF_INET, &classify_reg);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_target(&ipt_classify_reg);
+        xt_unregister_target(AF_INET, &classify_reg);
+        xt_unregister_target(AF_INET6, &classify6_reg);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_CONNMARK.c b/net/netfilter/xt_CONNMARK.c
index 8acac5a40a92..22506e376be5 100644
--- a/net/ipv4/netfilter/ipt_CONNMARK.c
+++ b/net/netfilter/xt_CONNMARK.c
@@ -26,9 +26,10 @@
 MODULE_AUTHOR("Henrik Nordstrom <hno@marasytems.com>");
 MODULE_DESCRIPTION("IP tables CONNMARK matching module");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_CONNMARK");
 
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_CONNMARK.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_CONNMARK.h>
 #include <net/netfilter/nf_conntrack_compat.h>
 
 static unsigned int
@@ -39,7 +40,7 @@ target(struct sk_buff **pskb,
        const void *targinfo,
        void *userinfo)
 {
-        const struct ipt_connmark_target_info *markinfo = targinfo;
+        const struct xt_connmark_target_info *markinfo = targinfo;
         u_int32_t diff;
         u_int32_t nfmark;
         u_int32_t newmark;
@@ -48,17 +49,17 @@ target(struct sk_buff **pskb,
 
         if (ctmark) {
             switch(markinfo->mode) {
-            case IPT_CONNMARK_SET:
+            case XT_CONNMARK_SET:
                 newmark = (*ctmark & ~markinfo->mask) | markinfo->mark;
                 if (newmark != *ctmark)
                     *ctmark = newmark;
                 break;
-            case IPT_CONNMARK_SAVE:
+            case XT_CONNMARK_SAVE:
                 newmark = (*ctmark & ~markinfo->mask) | ((*pskb)->nfmark & markinfo->mask);
                 if (*ctmark != newmark)
                     *ctmark = newmark;
                 break;
-            case IPT_CONNMARK_RESTORE:
+            case XT_CONNMARK_RESTORE:
                 nfmark = (*pskb)->nfmark;
                 diff = (*ctmark ^ nfmark) & markinfo->mask;
                 if (diff != 0)
@@ -67,25 +68,25 @@ target(struct sk_buff **pskb,
             }
         }
 
-        return IPT_CONTINUE;
+        return XT_CONTINUE;
 }
 
 static int
 checkentry(const char *tablename,
-           const struct ipt_entry *e,
+           const void *entry,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
 {
-        struct ipt_connmark_target_info *matchinfo = targinfo;
-        if (targinfosize != IPT_ALIGN(sizeof(struct ipt_connmark_target_info))) {
+        struct xt_connmark_target_info *matchinfo = targinfo;
+        if (targinfosize != XT_ALIGN(sizeof(struct xt_connmark_target_info))) {
                 printk(KERN_WARNING "CONNMARK: targinfosize %u != %Zu\n",
                        targinfosize,
-                       IPT_ALIGN(sizeof(struct ipt_connmark_target_info)));
+                       XT_ALIGN(sizeof(struct xt_connmark_target_info)));
                 return 0;
         }
 
-        if (matchinfo->mode == IPT_CONNMARK_RESTORE) {
+        if (matchinfo->mode == XT_CONNMARK_RESTORE) {
             if (strcmp(tablename, "mangle") != 0) {
                     printk(KERN_WARNING "CONNMARK: restore can only be called from \"mangle\" table, not \"%s\"\n", tablename);
                     return 0;
@@ -100,7 +101,13 @@ checkentry(const char *tablename,
         return 1;
 }
 
-static struct ipt_target ipt_connmark_reg = {
+static struct xt_target connmark_reg = {
+        .name = "CONNMARK",
+        .target = &target,
+        .checkentry = &checkentry,
+        .me = THIS_MODULE
+};
+static struct xt_target connmark6_reg = {
         .name = "CONNMARK",
         .target = &target,
         .checkentry = &checkentry,
@@ -109,13 +116,25 @@ static struct ipt_target ipt_connmark_reg = {
 
 static int __init init(void)
 {
-        need_ip_conntrack();
-        return ipt_register_target(&ipt_connmark_reg);
+        int ret;
+
+        need_conntrack();
+
+        ret = xt_register_target(AF_INET, &connmark_reg);
+        if (ret)
+                return ret;
+
+        ret = xt_register_target(AF_INET6, &connmark6_reg);
+        if (ret)
+                xt_unregister_target(AF_INET, &connmark_reg);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_target(&ipt_connmark_reg);
+        xt_unregister_target(AF_INET, &connmark_reg);
+        xt_unregister_target(AF_INET6, &connmark6_reg);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_MARK.c b/net/netfilter/xt_MARK.c
index 52b4f2c296bf..0c11ee9550f3 100644
--- a/net/ipv4/netfilter/ipt_MARK.c
+++ b/net/netfilter/xt_MARK.c
@@ -12,12 +12,14 @@
 #include <linux/ip.h>
 #include <net/checksum.h>
 
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_MARK.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_MARK.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
-MODULE_DESCRIPTION("iptables MARK modification module");
+MODULE_DESCRIPTION("ip[6]tables MARK modification module");
+MODULE_ALIAS("ipt_MARK");
+MODULE_ALIAS("ip6t_MARK");
 
 static unsigned int
 target_v0(struct sk_buff **pskb,
@@ -27,12 +29,12 @@ target_v0(struct sk_buff **pskb,
           const void *targinfo,
           void *userinfo)
 {
-        const struct ipt_mark_target_info *markinfo = targinfo;
+        const struct xt_mark_target_info *markinfo = targinfo;
 
         if((*pskb)->nfmark != markinfo->mark)
                 (*pskb)->nfmark = markinfo->mark;
 
-        return IPT_CONTINUE;
+        return XT_CONTINUE;
 }
 
 static unsigned int
@@ -43,19 +45,19 @@ target_v1(struct sk_buff **pskb,
           const void *targinfo,
           void *userinfo)
 {
-        const struct ipt_mark_target_info_v1 *markinfo = targinfo;
+        const struct xt_mark_target_info_v1 *markinfo = targinfo;
         int mark = 0;
 
         switch (markinfo->mode) {
-        case IPT_MARK_SET:
+        case XT_MARK_SET:
                 mark = markinfo->mark;
                 break;
                 
-        case IPT_MARK_AND:
+        case XT_MARK_AND:
                 mark = (*pskb)->nfmark & markinfo->mark;
                 break;
                 
-        case IPT_MARK_OR:
+        case XT_MARK_OR:
                 mark = (*pskb)->nfmark | markinfo->mark;
                 break;
         }
@@ -63,23 +65,23 @@ target_v1(struct sk_buff **pskb,
         if((*pskb)->nfmark != mark)
                 (*pskb)->nfmark = mark;
 
-        return IPT_CONTINUE;
+        return XT_CONTINUE;
 }
 
 
 static int
 checkentry_v0(const char *tablename,
-              const struct ipt_entry *e,
+              const void *entry,
               void *targinfo,
               unsigned int targinfosize,
               unsigned int hook_mask)
 {
-        struct ipt_mark_target_info *markinfo = targinfo;
+        struct xt_mark_target_info *markinfo = targinfo;
 
-        if (targinfosize != IPT_ALIGN(sizeof(struct ipt_mark_target_info))) {
+        if (targinfosize != XT_ALIGN(sizeof(struct xt_mark_target_info))) {
                 printk(KERN_WARNING "MARK: targinfosize %u != %Zu\n",
                        targinfosize,
-                       IPT_ALIGN(sizeof(struct ipt_mark_target_info)));
+                       XT_ALIGN(sizeof(struct xt_mark_target_info)));
                 return 0;
         }
 
@@ -98,17 +100,17 @@ checkentry_v0(const char *tablename,
 
 static int
 checkentry_v1(const char *tablename,
-              const struct ipt_entry *e,
+              const void *entry,
               void *targinfo,
               unsigned int targinfosize,
               unsigned int hook_mask)
 {
-        struct ipt_mark_target_info_v1 *markinfo = targinfo;
+        struct xt_mark_target_info_v1 *markinfo = targinfo;
 
-        if (targinfosize != IPT_ALIGN(sizeof(struct ipt_mark_target_info_v1))){
+        if (targinfosize != XT_ALIGN(sizeof(struct xt_mark_target_info_v1))){
                 printk(KERN_WARNING "MARK: targinfosize %u != %Zu\n",
                        targinfosize,
-                       IPT_ALIGN(sizeof(struct ipt_mark_target_info_v1)));
+                       XT_ALIGN(sizeof(struct xt_mark_target_info_v1)));
                 return 0;
         }
 
@@ -117,9 +119,9 @@ checkentry_v1(const char *tablename,
                 return 0;
         }
 
-        if (markinfo->mode != IPT_MARK_SET
-            && markinfo->mode != IPT_MARK_AND
-            && markinfo->mode != IPT_MARK_OR) {
+        if (markinfo->mode != XT_MARK_SET
+            && markinfo->mode != XT_MARK_AND
+            && markinfo->mode != XT_MARK_OR) {
                 printk(KERN_WARNING "MARK: unknown mode %u\n",
                        markinfo->mode);
                 return 0;
@@ -133,7 +135,7 @@ checkentry_v1(const char *tablename,
         return 1;
 }
 
-static struct ipt_target ipt_mark_reg_v0 = {
+static struct xt_target ipt_mark_reg_v0 = {
         .name           = "MARK",
         .target         = target_v0,
         .checkentry     = checkentry_v0,
@@ -141,7 +143,7 @@ static struct ipt_target ipt_mark_reg_v0 = {
         .revision       = 0,
 };
 
-static struct ipt_target ipt_mark_reg_v1 = {
+static struct xt_target ipt_mark_reg_v1 = {
         .name           = "MARK",
         .target         = target_v1,
         .checkentry     = checkentry_v1,
@@ -149,23 +151,40 @@ static struct ipt_target ipt_mark_reg_v1 = {
         .revision       = 1,
 };
 
+static struct xt_target ip6t_mark_reg_v0 = {
+        .name           = "MARK",
+        .target         = target_v0,
+        .checkentry     = checkentry_v0,
+        .me             = THIS_MODULE,
+        .revision       = 0,
+};
+
 static int __init init(void)
 {
         int err;
 
-        err = ipt_register_target(&ipt_mark_reg_v0);
-        if (!err) {
-                err = ipt_register_target(&ipt_mark_reg_v1);
-                if (err)
-                        ipt_unregister_target(&ipt_mark_reg_v0);
+        err = xt_register_target(AF_INET, &ipt_mark_reg_v0);
+        if (err)
+                return err;
+
+        err = xt_register_target(AF_INET, &ipt_mark_reg_v1);
+        if (err)
+                xt_unregister_target(AF_INET, &ipt_mark_reg_v0);
+
+        err = xt_register_target(AF_INET6, &ip6t_mark_reg_v0);
+        if (err) {
+                xt_unregister_target(AF_INET, &ipt_mark_reg_v0);
+                xt_unregister_target(AF_INET, &ipt_mark_reg_v1);
         }
+
         return err;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_target(&ipt_mark_reg_v0);
-        ipt_unregister_target(&ipt_mark_reg_v1);
+        xt_unregister_target(AF_INET, &ipt_mark_reg_v0);
+        xt_unregister_target(AF_INET, &ipt_mark_reg_v1);
+        xt_unregister_target(AF_INET6, &ip6t_mark_reg_v0);
 }
 
 module_init(init);
diff --git a/net/netfilter/xt_NFQUEUE.c b/net/netfilter/xt_NFQUEUE.c
new file mode 100644
index 000000000000..8b76b6f8d1e4
--- /dev/null
+++ b/net/netfilter/xt_NFQUEUE.c
@@ -0,0 +1,107 @@
+/* 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_arp.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_NFQUEUE.h>
+
+MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
+MODULE_DESCRIPTION("[ip,ip6,arp]_tables NFQUEUE target");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_NFQUEUE");
+MODULE_ALIAS("ip6t_NFQUEUE");
+MODULE_ALIAS("arpt_NFQUEUE");
+
+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 xt_NFQ_info *tinfo = targinfo;
+
+        return NF_QUEUE_NR(tinfo->queuenum);
+}
+
+static int
+checkentry(const char *tablename,
+           const void *entry,
+           void *targinfo,
+           unsigned int targinfosize,
+           unsigned int hook_mask)
+{
+        if (targinfosize != XT_ALIGN(sizeof(struct xt_NFQ_info))) {
+                printk(KERN_WARNING "NFQUEUE: targinfosize %u != %Zu\n",
+                       targinfosize,
+                       XT_ALIGN(sizeof(struct xt_NFQ_info)));
+                return 0;
+        }
+
+        return 1;
+}
+
+static struct xt_target ipt_NFQ_reg = {
+        .name           = "NFQUEUE",
+        .target         = target,
+        .checkentry     = checkentry,
+        .me             = THIS_MODULE,
+};
+
+static struct xt_target ip6t_NFQ_reg = {
+        .name           = "NFQUEUE",
+        .target         = target,
+        .checkentry     = checkentry,
+        .me             = THIS_MODULE,
+};
+
+static struct xt_target arpt_NFQ_reg = {
+        .name           = "NFQUEUE",
+        .target         = target,
+        .checkentry     = checkentry,
+        .me             = THIS_MODULE,
+};
+
+static int __init init(void)
+{
+        int ret;
+        ret = xt_register_target(AF_INET, &ipt_NFQ_reg);
+        if (ret)
+                return ret;
+        ret = xt_register_target(AF_INET6, &ip6t_NFQ_reg);
+        if (ret)
+                goto out_ip;
+        ret = xt_register_target(NF_ARP, &arpt_NFQ_reg);
+        if (ret)
+                goto out_ip6;
+
+        return ret;
+out_ip6:
+        xt_unregister_target(AF_INET6, &ip6t_NFQ_reg);
+out_ip:
+        xt_unregister_target(AF_INET, &ipt_NFQ_reg);
+
+        return ret;
+}
+
+static void __exit fini(void)
+{
+        xt_unregister_target(NF_ARP, &arpt_NFQ_reg);
+        xt_unregister_target(AF_INET6, &ip6t_NFQ_reg);
+        xt_unregister_target(AF_INET, &ipt_NFQ_reg);
+}
+
+module_init(init);
+module_exit(fini);
diff --git a/net/ipv4/netfilter/ipt_NOTRACK.c b/net/netfilter/xt_NOTRACK.c
index e3c69d072c6e..24d477afa939 100644
--- a/net/ipv4/netfilter/ipt_NOTRACK.c
+++ b/net/netfilter/xt_NOTRACK.c
@@ -4,9 +4,12 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 
-#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter/x_tables.h>
 #include <net/netfilter/nf_conntrack_compat.h>
 
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_NOTRACK");
+
 static unsigned int
 target(struct sk_buff **pskb,
        const struct net_device *in,
@@ -17,7 +20,7 @@ target(struct sk_buff **pskb,
 {
         /* Previously seen (loopback)? Ignore. */
         if ((*pskb)->nfct != NULL)
-                return IPT_CONTINUE;
+                return XT_CONTINUE;
 
         /* Attach fake conntrack entry. 
            If there is a real ct entry correspondig to this packet, 
@@ -27,12 +30,12 @@ target(struct sk_buff **pskb,
         (*pskb)->nfctinfo = IP_CT_NEW;
         nf_conntrack_get((*pskb)->nfct);
 
-        return IPT_CONTINUE;
+        return XT_CONTINUE;
 }
 
 static int
 checkentry(const char *tablename,
-           const struct ipt_entry *e,
+           const void *entry,
            void *targinfo,
            unsigned int targinfosize,
            unsigned int hook_mask)
@@ -51,26 +54,39 @@ checkentry(const char *tablename,
         return 1;
 }
 
-static struct ipt_target ipt_notrack_reg = { 
+static struct xt_target notrack_reg = { 
         .name = "NOTRACK", 
         .target = target, 
         .checkentry = checkentry,
-        .me = THIS_MODULE 
+        .me = THIS_MODULE,
+};
+static struct xt_target notrack6_reg = { 
+        .name = "NOTRACK", 
+        .target = target, 
+        .checkentry = checkentry,
+        .me = THIS_MODULE,
 };
 
 static int __init init(void)
 {
-        if (ipt_register_target(&ipt_notrack_reg))
-                return -EINVAL;
+        int ret;
+
+        ret = xt_register_target(AF_INET, &notrack_reg);
+        if (ret)
+                return ret;
 
-        return 0;
+        ret = xt_register_target(AF_INET6, &notrack6_reg);
+        if (ret)
+                xt_unregister_target(AF_INET, &notrack_reg);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_target(&ipt_notrack_reg);
+        xt_unregister_target(AF_INET6, &notrack6_reg);
+        xt_unregister_target(AF_INET, &notrack_reg);
 }
 
 module_init(init);
 module_exit(fini);
-MODULE_LICENSE("GPL");
diff --git a/net/ipv4/netfilter/ipt_comment.c b/net/netfilter/xt_comment.c
index 6b76a1ea5245..4ba6fd65c6e9 100644
--- a/net/ipv4/netfilter/ipt_comment.c
+++ b/net/netfilter/xt_comment.c
@@ -6,12 +6,14 @@
 
 #include <linux/module.h>
 #include <linux/skbuff.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_comment.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_comment.h>
 
 MODULE_AUTHOR("Brad Fisher <brad@info-link.net>");
 MODULE_DESCRIPTION("iptables comment match module");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_comment");
+MODULE_ALIAS("ip6t_comment");
 
 static int
 match(const struct sk_buff *skb,
@@ -19,6 +21,7 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protooff,
       int *hotdrop)
 {
         /* We always match */
@@ -27,18 +30,25 @@ 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)
 {
         /* Check the size */
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_comment_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_comment_info)))
                 return 0;
         return 1;
 }
 
-static struct ipt_match comment_match = {
+static struct xt_match comment_match = {
+        .name           = "comment",
+        .match          = match,
+        .checkentry     = checkentry,
+        .me             = THIS_MODULE
+};
+
+static struct xt_match comment6_match = {
         .name           = "comment",
         .match          = match,
         .checkentry     = checkentry,
@@ -47,12 +57,23 @@ static struct ipt_match comment_match = {
 
 static int __init init(void)
 {
-        return ipt_register_match(&comment_match);
+        int ret;
+
+        ret = xt_register_match(AF_INET, &comment_match);
+        if (ret)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &comment6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &comment_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&comment_match);
+        xt_unregister_match(AF_INET, &comment_match);
+        xt_unregister_match(AF_INET6, &comment6_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_connbytes.c b/net/netfilter/xt_connbytes.c
index d68a048b7176..150d2a4b0f71 100644
--- a/net/ipv4/netfilter/ipt_connbytes.c
+++ b/net/netfilter/xt_connbytes.c
@@ -6,13 +6,15 @@
  *      - add functionality to match number of packets
  *      - add functionality to match average packet size
  *      - add support to match directions seperately
+ * 2005-10-16 Harald Welte <laforge@netfilter.org>
+ *      - Port to x_tables
  *
  */
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <net/netfilter/nf_conntrack_compat.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_connbytes.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_connbytes.h>
 
 #include <asm/div64.h>
 #include <asm/bitops.h>
@@ -20,6 +22,7 @@
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
 MODULE_DESCRIPTION("iptables match for matching number of pkts/bytes per connection");
+MODULE_ALIAS("ipt_connbytes");
 
 /* 64bit divisor, dividend and result. dynamic precision */
 static u_int64_t div64_64(u_int64_t dividend, u_int64_t divisor)
@@ -43,9 +46,10 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_connbytes_info *sinfo = matchinfo;
+        const struct xt_connbytes_info *sinfo = matchinfo;
         u_int64_t what = 0;     /* initialize to make gcc happy */
         const struct ip_conntrack_counter *counters;
 
@@ -53,45 +57,45 @@ match(const struct sk_buff *skb,
                 return 0; /* no match */
 
         switch (sinfo->what) {
-        case IPT_CONNBYTES_PKTS:
+        case XT_CONNBYTES_PKTS:
                 switch (sinfo->direction) {
-                case IPT_CONNBYTES_DIR_ORIGINAL:
+                case XT_CONNBYTES_DIR_ORIGINAL:
                         what = counters[IP_CT_DIR_ORIGINAL].packets;
                         break;
-                case IPT_CONNBYTES_DIR_REPLY:
+                case XT_CONNBYTES_DIR_REPLY:
                         what = counters[IP_CT_DIR_REPLY].packets;
                         break;
-                case IPT_CONNBYTES_DIR_BOTH:
+                case XT_CONNBYTES_DIR_BOTH:
                         what = counters[IP_CT_DIR_ORIGINAL].packets;
                         what += counters[IP_CT_DIR_REPLY].packets;
                         break;
                 }
                 break;
-        case IPT_CONNBYTES_BYTES:
+        case XT_CONNBYTES_BYTES:
                 switch (sinfo->direction) {
-                case IPT_CONNBYTES_DIR_ORIGINAL:
+                case XT_CONNBYTES_DIR_ORIGINAL:
                         what = counters[IP_CT_DIR_ORIGINAL].bytes;
                         break;
-                case IPT_CONNBYTES_DIR_REPLY:
+                case XT_CONNBYTES_DIR_REPLY:
                         what = counters[IP_CT_DIR_REPLY].bytes;
                         break;
-                case IPT_CONNBYTES_DIR_BOTH:
+                case XT_CONNBYTES_DIR_BOTH:
                         what = counters[IP_CT_DIR_ORIGINAL].bytes;
                         what += counters[IP_CT_DIR_REPLY].bytes;
                         break;
                 }
                 break;
-        case IPT_CONNBYTES_AVGPKT:
+        case XT_CONNBYTES_AVGPKT:
                 switch (sinfo->direction) {
-                case IPT_CONNBYTES_DIR_ORIGINAL:
+                case XT_CONNBYTES_DIR_ORIGINAL:
                         what = div64_64(counters[IP_CT_DIR_ORIGINAL].bytes,
                                         counters[IP_CT_DIR_ORIGINAL].packets);
                         break;
-                case IPT_CONNBYTES_DIR_REPLY:
+                case XT_CONNBYTES_DIR_REPLY:
                         what = div64_64(counters[IP_CT_DIR_REPLY].bytes,
                                         counters[IP_CT_DIR_REPLY].packets);
                         break;
-                case IPT_CONNBYTES_DIR_BOTH:
+                case XT_CONNBYTES_DIR_BOTH:
                         {
                                 u_int64_t bytes;
                                 u_int64_t pkts;
@@ -117,30 +121,36 @@ match(const struct sk_buff *skb,
 }
 
 static int check(const char *tablename,
-                 const struct ipt_ip *ip,
+                 const void *ip,
                  void *matchinfo,
                  unsigned int matchsize,
                  unsigned int hook_mask)
 {
-        const struct ipt_connbytes_info *sinfo = matchinfo;
+        const struct xt_connbytes_info *sinfo = matchinfo;
 
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_connbytes_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_connbytes_info)))
                 return 0;
 
-        if (sinfo->what != IPT_CONNBYTES_PKTS &&
-            sinfo->what != IPT_CONNBYTES_BYTES &&
-            sinfo->what != IPT_CONNBYTES_AVGPKT)
+        if (sinfo->what != XT_CONNBYTES_PKTS &&
+            sinfo->what != XT_CONNBYTES_BYTES &&
+            sinfo->what != XT_CONNBYTES_AVGPKT)
                 return 0;
 
-        if (sinfo->direction != IPT_CONNBYTES_DIR_ORIGINAL &&
-            sinfo->direction != IPT_CONNBYTES_DIR_REPLY &&
-            sinfo->direction != IPT_CONNBYTES_DIR_BOTH)
+        if (sinfo->direction != XT_CONNBYTES_DIR_ORIGINAL &&
+            sinfo->direction != XT_CONNBYTES_DIR_REPLY &&
+            sinfo->direction != XT_CONNBYTES_DIR_BOTH)
                 return 0;
 
         return 1;
 }
 
-static struct ipt_match state_match = {
+static struct xt_match connbytes_match = {
+        .name           = "connbytes",
+        .match          = &match,
+        .checkentry     = &check,
+        .me             = THIS_MODULE
+};
+static struct xt_match connbytes6_match = {
         .name           = "connbytes",
         .match          = &match,
         .checkentry     = &check,
@@ -149,12 +159,21 @@ static struct ipt_match state_match = {
 
 static int __init init(void)
 {
-        return ipt_register_match(&state_match);
+        int ret;
+        ret = xt_register_match(AF_INET, &connbytes_match);
+        if (ret)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &connbytes6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &connbytes_match);
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&state_match);
+        xt_unregister_match(AF_INET, &connbytes_match);
+        xt_unregister_match(AF_INET6, &connbytes6_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_connmark.c b/net/netfilter/xt_connmark.c
index 5306ef293b92..d06e925032da 100644
--- a/net/ipv4/netfilter/ipt_connmark.c
+++ b/net/netfilter/xt_connmark.c
@@ -25,9 +25,10 @@
 MODULE_AUTHOR("Henrik Nordstrom <hno@marasytems.com>");
 MODULE_DESCRIPTION("IP tables connmark match module");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_connmark");
 
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_connmark.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_connmark.h>
 #include <net/netfilter/nf_conntrack_compat.h>
 
 static int
@@ -36,9 +37,10 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_connmark_info *info = matchinfo;
+        const struct xt_connmark_info *info = matchinfo;
         u_int32_t ctinfo;
         const u_int32_t *ctmark = nf_ct_get_mark(skb, &ctinfo);
         if (!ctmark)
@@ -49,14 +51,14 @@ 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)
 {
-        struct ipt_connmark_info *cm = 
-                                (struct ipt_connmark_info *)matchinfo;
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_connmark_info)))
+        struct xt_connmark_info *cm = 
+                                (struct xt_connmark_info *)matchinfo;
+        if (matchsize != XT_ALIGN(sizeof(struct xt_connmark_info)))
                 return 0;
 
         if (cm->mark > 0xffffffff || cm->mask > 0xffffffff) {
@@ -67,21 +69,40 @@ checkentry(const char *tablename,
         return 1;
 }
 
-static struct ipt_match connmark_match = {
+static struct xt_match connmark_match = {
+        .name = "connmark",
+        .match = &match,
+        .checkentry = &checkentry,
+        .me = THIS_MODULE
+};
+static struct xt_match connmark6_match = {
         .name = "connmark",
         .match = &match,
         .checkentry = &checkentry,
         .me = THIS_MODULE
 };
 
+
 static int __init init(void)
 {
-        return ipt_register_match(&connmark_match);
+        int ret;
+
+        need_conntrack();
+
+        ret = xt_register_match(AF_INET, &connmark_match);
+        if (ret)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &connmark6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &connmark_match);
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&connmark_match);
+        xt_unregister_match(AF_INET6, &connmark6_match);
+        xt_unregister_match(AF_INET, &connmark_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_conntrack.c b/net/netfilter/xt_conntrack.c
index c8d18705469b..ffdebc95eb95 100644
--- a/net/ipv4/netfilter/ipt_conntrack.c
+++ b/net/netfilter/xt_conntrack.c
@@ -18,12 +18,13 @@
 #include <net/netfilter/nf_conntrack.h>
 #endif
 
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_conntrack.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_conntrack.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
 MODULE_DESCRIPTION("iptables connection tracking match module");
+MODULE_ALIAS("ipt_conntrack");
 
 #if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
 
@@ -33,9 +34,10 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_conntrack_info *sinfo = matchinfo;
+        const struct xt_conntrack_info *sinfo = matchinfo;
         struct ip_conntrack *ct;
         enum ip_conntrack_info ctinfo;
         unsigned int statebit;
@@ -45,58 +47,58 @@ match(const struct sk_buff *skb,
 #define FWINV(bool,invflg) ((bool) ^ !!(sinfo->invflags & invflg))
 
         if (ct == &ip_conntrack_untracked)
-                statebit = IPT_CONNTRACK_STATE_UNTRACKED;
+                statebit = XT_CONNTRACK_STATE_UNTRACKED;
         else if (ct)
-                statebit = IPT_CONNTRACK_STATE_BIT(ctinfo);
+                statebit = XT_CONNTRACK_STATE_BIT(ctinfo);
         else
-                statebit = IPT_CONNTRACK_STATE_INVALID;
+                statebit = XT_CONNTRACK_STATE_INVALID;
  
-        if(sinfo->flags & IPT_CONNTRACK_STATE) {
+        if(sinfo->flags & XT_CONNTRACK_STATE) {
                 if (ct) {
                         if(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip !=
                             ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip)
-                                statebit |= IPT_CONNTRACK_STATE_SNAT;
+                                statebit |= XT_CONNTRACK_STATE_SNAT;
 
                         if(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip !=
                             ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip)
-                                statebit |= IPT_CONNTRACK_STATE_DNAT;
+                                statebit |= XT_CONNTRACK_STATE_DNAT;
                 }
 
-                if (FWINV((statebit & sinfo->statemask) == 0, IPT_CONNTRACK_STATE))
+                if (FWINV((statebit & sinfo->statemask) == 0, XT_CONNTRACK_STATE))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_PROTO) {
-                if (!ct || FWINV(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum, IPT_CONNTRACK_PROTO))
+        if(sinfo->flags & XT_CONNTRACK_PROTO) {
+                if (!ct || FWINV(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum, XT_CONNTRACK_PROTO))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_ORIGSRC) {
-                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip&sinfo->sipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].src.ip, IPT_CONNTRACK_ORIGSRC))
+        if(sinfo->flags & XT_CONNTRACK_ORIGSRC) {
+                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.ip&sinfo->sipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].src.ip, XT_CONNTRACK_ORIGSRC))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_ORIGDST) {
-                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip&sinfo->dipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.ip, IPT_CONNTRACK_ORIGDST))
+        if(sinfo->flags & XT_CONNTRACK_ORIGDST) {
+                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.ip&sinfo->dipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.ip, XT_CONNTRACK_ORIGDST))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_REPLSRC) {
-                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip&sinfo->sipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].src.ip, IPT_CONNTRACK_REPLSRC))
+        if(sinfo->flags & XT_CONNTRACK_REPLSRC) {
+                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.ip&sinfo->sipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].src.ip, XT_CONNTRACK_REPLSRC))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_REPLDST) {
-                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip&sinfo->dipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].dst.ip, IPT_CONNTRACK_REPLDST))
+        if(sinfo->flags & XT_CONNTRACK_REPLDST) {
+                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.ip&sinfo->dipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].dst.ip, XT_CONNTRACK_REPLDST))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_STATUS) {
-                if (!ct || FWINV((ct->status & sinfo->statusmask) == 0, IPT_CONNTRACK_STATUS))
+        if(sinfo->flags & XT_CONNTRACK_STATUS) {
+                if (!ct || FWINV((ct->status & sinfo->statusmask) == 0, XT_CONNTRACK_STATUS))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_EXPIRES) {
+        if(sinfo->flags & XT_CONNTRACK_EXPIRES) {
                 unsigned long expires;
 
                 if(!ct)
@@ -104,7 +106,7 @@ match(const struct sk_buff *skb,
 
                 expires = timer_pending(&ct->timeout) ? (ct->timeout.expires - jiffies)/HZ : 0;
 
-                if (FWINV(!(expires >= sinfo->expires_min && expires <= sinfo->expires_max), IPT_CONNTRACK_EXPIRES))
+                if (FWINV(!(expires >= sinfo->expires_min && expires <= sinfo->expires_max), XT_CONNTRACK_EXPIRES))
                         return 0;
         }
 
@@ -118,9 +120,10 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_conntrack_info *sinfo = matchinfo;
+        const struct xt_conntrack_info *sinfo = matchinfo;
         struct nf_conn *ct;
         enum ip_conntrack_info ctinfo;
         unsigned int statebit;
@@ -130,58 +133,58 @@ match(const struct sk_buff *skb,
 #define FWINV(bool,invflg) ((bool) ^ !!(sinfo->invflags & invflg))
 
         if (ct == &nf_conntrack_untracked)
-                statebit = IPT_CONNTRACK_STATE_UNTRACKED;
+                statebit = XT_CONNTRACK_STATE_UNTRACKED;
         else if (ct)
-                statebit = IPT_CONNTRACK_STATE_BIT(ctinfo);
+                statebit = XT_CONNTRACK_STATE_BIT(ctinfo);
         else
-                statebit = IPT_CONNTRACK_STATE_INVALID;
+                statebit = XT_CONNTRACK_STATE_INVALID;
  
-        if(sinfo->flags & IPT_CONNTRACK_STATE) {
+        if(sinfo->flags & XT_CONNTRACK_STATE) {
                 if (ct) {
                         if(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip !=
                             ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip)
-                                statebit |= IPT_CONNTRACK_STATE_SNAT;
+                                statebit |= XT_CONNTRACK_STATE_SNAT;
 
                         if(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip !=
                             ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip)
-                                statebit |= IPT_CONNTRACK_STATE_DNAT;
+                                statebit |= XT_CONNTRACK_STATE_DNAT;
                 }
 
-                if (FWINV((statebit & sinfo->statemask) == 0, IPT_CONNTRACK_STATE))
+                if (FWINV((statebit & sinfo->statemask) == 0, XT_CONNTRACK_STATE))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_PROTO) {
-                if (!ct || FWINV(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum, IPT_CONNTRACK_PROTO))
+        if(sinfo->flags & XT_CONNTRACK_PROTO) {
+                if (!ct || FWINV(ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.protonum != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.protonum, XT_CONNTRACK_PROTO))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_ORIGSRC) {
-                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip&sinfo->sipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].src.ip, IPT_CONNTRACK_ORIGSRC))
+        if(sinfo->flags & XT_CONNTRACK_ORIGSRC) {
+                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.src.u3.ip&sinfo->sipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].src.ip, XT_CONNTRACK_ORIGSRC))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_ORIGDST) {
-                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip&sinfo->dipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.ip, IPT_CONNTRACK_ORIGDST))
+        if(sinfo->flags & XT_CONNTRACK_ORIGDST) {
+                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_ORIGINAL].tuple.dst.u3.ip&sinfo->dipmsk[IP_CT_DIR_ORIGINAL].s_addr) != sinfo->tuple[IP_CT_DIR_ORIGINAL].dst.ip, XT_CONNTRACK_ORIGDST))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_REPLSRC) {
-                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip&sinfo->sipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].src.ip, IPT_CONNTRACK_REPLSRC))
+        if(sinfo->flags & XT_CONNTRACK_REPLSRC) {
+                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.src.u3.ip&sinfo->sipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].src.ip, XT_CONNTRACK_REPLSRC))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_REPLDST) {
-                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip&sinfo->dipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].dst.ip, IPT_CONNTRACK_REPLDST))
+        if(sinfo->flags & XT_CONNTRACK_REPLDST) {
+                if (!ct || FWINV((ct->tuplehash[IP_CT_DIR_REPLY].tuple.dst.u3.ip&sinfo->dipmsk[IP_CT_DIR_REPLY].s_addr) != sinfo->tuple[IP_CT_DIR_REPLY].dst.ip, XT_CONNTRACK_REPLDST))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_STATUS) {
-                if (!ct || FWINV((ct->status & sinfo->statusmask) == 0, IPT_CONNTRACK_STATUS))
+        if(sinfo->flags & XT_CONNTRACK_STATUS) {
+                if (!ct || FWINV((ct->status & sinfo->statusmask) == 0, XT_CONNTRACK_STATUS))
                         return 0;
         }
 
-        if(sinfo->flags & IPT_CONNTRACK_EXPIRES) {
+        if(sinfo->flags & XT_CONNTRACK_EXPIRES) {
                 unsigned long expires;
 
                 if(!ct)
@@ -189,7 +192,7 @@ match(const struct sk_buff *skb,
 
                 expires = timer_pending(&ct->timeout) ? (ct->timeout.expires - jiffies)/HZ : 0;
 
-                if (FWINV(!(expires >= sinfo->expires_min && expires <= sinfo->expires_max), IPT_CONNTRACK_EXPIRES))
+                if (FWINV(!(expires >= sinfo->expires_min && expires <= sinfo->expires_max), XT_CONNTRACK_EXPIRES))
                         return 0;
         }
 
@@ -199,18 +202,18 @@ match(const struct sk_buff *skb,
 #endif /* CONFIG_NF_IP_CONNTRACK */
 
 static int check(const char *tablename,
-                 const struct ipt_ip *ip,
+                 const void *ip,
                  void *matchinfo,
                  unsigned int matchsize,
                  unsigned int hook_mask)
 {
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_conntrack_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_conntrack_info)))
                 return 0;
 
         return 1;
 }
 
-static struct ipt_match conntrack_match = {
+static struct xt_match conntrack_match = {
         .name           = "conntrack",
         .match          = &match,
         .checkentry     = &check,
@@ -219,13 +222,16 @@ static struct ipt_match conntrack_match = {
 
 static int __init init(void)
 {
-        need_ip_conntrack();
-        return ipt_register_match(&conntrack_match);
+        int ret;
+        need_conntrack();
+        ret = xt_register_match(AF_INET, &conntrack_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&conntrack_match);
+        xt_unregister_match(AF_INET, &conntrack_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_dccp.c b/net/netfilter/xt_dccp.c
index ad3278bba6c1..779f42fc9524 100644
--- a/net/ipv4/netfilter/ipt_dccp.c
+++ b/net/netfilter/xt_dccp.c
@@ -14,8 +14,16 @@
 #include <net/ip.h>
 #include <linux/dccp.h>
 
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_dccp.h>
+
 #include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_dccp.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
+MODULE_DESCRIPTION("Match for DCCP protocol packets");
+MODULE_ALIAS("ipt_dccp");
 
 #define DCCHECK(cond, option, flag, invflag) (!((flag) & (option)) \
                                   || (!!((invflag) & (option)) ^ (cond)))
@@ -26,6 +34,7 @@ static DEFINE_SPINLOCK(dccp_buflock);
 static inline int
 dccp_find_option(u_int8_t option,
                  const struct sk_buff *skb,
+                 unsigned int protoff,
                  const struct dccp_hdr *dh,
                  int *hotdrop)
 {
@@ -44,9 +53,7 @@ dccp_find_option(u_int8_t option,
                 return 0;
 
         spin_lock_bh(&dccp_buflock);
-        op = skb_header_pointer(skb,
-                                skb->nh.iph->ihl*4 + optoff,
-                                optlen, dccp_optbuf);
+        op = skb_header_pointer(skb, protoff + optoff, optlen, dccp_optbuf);
         if (op == NULL) {
                 /* If we don't have the whole header, drop packet. */
                 spin_unlock_bh(&dccp_buflock);
@@ -78,10 +85,10 @@ match_types(const struct dccp_hdr *dh, u_int16_t typemask)
 }
 
 static inline int
-match_option(u_int8_t option, const struct sk_buff *skb,
+match_option(u_int8_t option, const struct sk_buff *skb, unsigned int protoff,
              const struct dccp_hdr *dh, int *hotdrop)
 {
-        return dccp_find_option(option, skb, dh, hotdrop);
+        return dccp_find_option(option, skb, protoff, dh, hotdrop);
 }
 
 static int
@@ -90,16 +97,17 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_dccp_info *info = 
-                                (const struct ipt_dccp_info *)matchinfo;
+        const struct xt_dccp_info *info = 
+                                (const struct xt_dccp_info *)matchinfo;
         struct dccp_hdr _dh, *dh;
 
         if (offset)
                 return 0;
         
-        dh = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_dh), &_dh);
+        dh = skb_header_pointer(skb, protoff, sizeof(_dh), &_dh);
         if (dh == NULL) {
                 *hotdrop = 1;
                 return 0;
@@ -107,42 +115,73 @@ match(const struct sk_buff *skb,
 
         return  DCCHECK(((ntohs(dh->dccph_sport) >= info->spts[0]) 
                         && (ntohs(dh->dccph_sport) <= info->spts[1])), 
-                        IPT_DCCP_SRC_PORTS, info->flags, info->invflags)
+                        XT_DCCP_SRC_PORTS, info->flags, info->invflags)
                 && DCCHECK(((ntohs(dh->dccph_dport) >= info->dpts[0]) 
                         && (ntohs(dh->dccph_dport) <= info->dpts[1])), 
-                        IPT_DCCP_DEST_PORTS, info->flags, info->invflags)
+                        XT_DCCP_DEST_PORTS, info->flags, info->invflags)
                 && DCCHECK(match_types(dh, info->typemask),
-                           IPT_DCCP_TYPE, info->flags, info->invflags)
-                && DCCHECK(match_option(info->option, skb, dh, hotdrop),
-                           IPT_DCCP_OPTION, info->flags, info->invflags);
+                           XT_DCCP_TYPE, info->flags, info->invflags)
+                && DCCHECK(match_option(info->option, skb, protoff, dh,
+                                        hotdrop),
+                           XT_DCCP_OPTION, info->flags, info->invflags);
 }
 
 static int
 checkentry(const char *tablename,
-           const struct ipt_ip *ip,
+           const void *inf,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)
 {
-        const struct ipt_dccp_info *info;
+        const struct ipt_ip *ip = inf;
+        const struct xt_dccp_info *info;
 
-        info = (const struct ipt_dccp_info *)matchinfo;
+        info = (const struct xt_dccp_info *)matchinfo;
 
         return ip->proto == IPPROTO_DCCP
-                && !(ip->invflags & IPT_INV_PROTO)
-                && matchsize == IPT_ALIGN(sizeof(struct ipt_dccp_info))
-                && !(info->flags & ~IPT_DCCP_VALID_FLAGS)
-                && !(info->invflags & ~IPT_DCCP_VALID_FLAGS)
+                && !(ip->invflags & XT_INV_PROTO)
+                && matchsize == XT_ALIGN(sizeof(struct xt_dccp_info))
+                && !(info->flags & ~XT_DCCP_VALID_FLAGS)
+                && !(info->invflags & ~XT_DCCP_VALID_FLAGS)
                 && !(info->invflags & ~info->flags);
 }
 
-static struct ipt_match dccp_match = 
+static int
+checkentry6(const char *tablename,
+           const void *inf,
+           void *matchinfo,
+           unsigned int matchsize,
+           unsigned int hook_mask)
+{
+        const struct ip6t_ip6 *ip = inf;
+        const struct xt_dccp_info *info;
+
+        info = (const struct xt_dccp_info *)matchinfo;
+
+        return ip->proto == IPPROTO_DCCP
+                && !(ip->invflags & XT_INV_PROTO)
+                && matchsize == XT_ALIGN(sizeof(struct xt_dccp_info))
+                && !(info->flags & ~XT_DCCP_VALID_FLAGS)
+                && !(info->invflags & ~XT_DCCP_VALID_FLAGS)
+                && !(info->invflags & ~info->flags);
+}
+
+
+static struct xt_match dccp_match = 
 { 
         .name           = "dccp",
         .match          = &match,
         .checkentry     = &checkentry,
         .me             = THIS_MODULE,
 };
+static struct xt_match dccp6_match = 
+{ 
+        .name           = "dccp",
+        .match          = &match,
+        .checkentry     = &checkentry6,
+        .me             = THIS_MODULE,
+};
+
 
 static int __init init(void)
 {
@@ -154,23 +193,29 @@ static int __init init(void)
         dccp_optbuf = kmalloc(256 * 4, GFP_KERNEL);
         if (!dccp_optbuf)
                 return -ENOMEM;
-        ret = ipt_register_match(&dccp_match);
+        ret = xt_register_match(AF_INET, &dccp_match);
         if (ret)
-                kfree(dccp_optbuf);
+                goto out_kfree;
+        ret = xt_register_match(AF_INET6, &dccp6_match);
+        if (ret)
+                goto out_unreg;
+
+        return ret;
+
+out_unreg:
+        xt_unregister_match(AF_INET, &dccp_match);
+out_kfree:
+        kfree(dccp_optbuf);
 
         return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&dccp_match);
+        xt_unregister_match(AF_INET6, &dccp6_match);
+        xt_unregister_match(AF_INET, &dccp_match);
         kfree(dccp_optbuf);
 }
 
 module_init(init);
 module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Harald Welte <laforge@netfilter.org>");
-MODULE_DESCRIPTION("Match for DCCP protocol packets");
-
diff --git a/net/ipv4/netfilter/ipt_helper.c b/net/netfilter/xt_helper.c
index aef649e393af..38b6715e1db4 100644
--- a/net/ipv4/netfilter/ipt_helper.c
+++ b/net/netfilter/xt_helper.c
@@ -13,7 +13,6 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <linux/netfilter.h>
-#include <linux/interrupt.h>
 #if defined(CONFIG_IP_NF_CONNTRACK) || defined(CONFIG_IP_NF_CONNTRACK_MODULE)
 #include <linux/netfilter_ipv4/ip_conntrack.h>
 #include <linux/netfilter_ipv4/ip_conntrack_core.h>
@@ -23,12 +22,14 @@
 #include <net/netfilter/nf_conntrack_core.h>
 #include <net/netfilter/nf_conntrack_helper.h>
 #endif
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_helper.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_helper.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Martin Josefsson <gandalf@netfilter.org>");
 MODULE_DESCRIPTION("iptables helper match module");
+MODULE_ALIAS("ipt_helper");
+MODULE_ALIAS("ip6t_helper");
 
 #if 0
 #define DEBUGP printk
@@ -43,27 +44,28 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_helper_info *info = matchinfo;
+        const struct xt_helper_info *info = matchinfo;
         struct ip_conntrack *ct;
         enum ip_conntrack_info ctinfo;
         int ret = info->invert;
         
         ct = ip_conntrack_get((struct sk_buff *)skb, &ctinfo);
         if (!ct) {
-                DEBUGP("ipt_helper: Eek! invalid conntrack?\n");
+                DEBUGP("xt_helper: Eek! invalid conntrack?\n");
                 return ret;
         }
 
         if (!ct->master) {
-                DEBUGP("ipt_helper: conntrack %p has no master\n", ct);
+                DEBUGP("xt_helper: conntrack %p has no master\n", ct);
                 return ret;
         }
 
         read_lock_bh(&ip_conntrack_lock);
         if (!ct->master->helper) {
-                DEBUGP("ipt_helper: master ct %p has no helper\n", 
+                DEBUGP("xt_helper: master ct %p has no helper\n", 
                         exp->expectant);
                 goto out_unlock;
         }
@@ -89,27 +91,28 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_helper_info *info = matchinfo;
+        const struct xt_helper_info *info = matchinfo;
         struct nf_conn *ct;
         enum ip_conntrack_info ctinfo;
         int ret = info->invert;
         
         ct = nf_ct_get((struct sk_buff *)skb, &ctinfo);
         if (!ct) {
-                DEBUGP("ipt_helper: Eek! invalid conntrack?\n");
+                DEBUGP("xt_helper: Eek! invalid conntrack?\n");
                 return ret;
         }
 
         if (!ct->master) {
-                DEBUGP("ipt_helper: conntrack %p has no master\n", ct);
+                DEBUGP("xt_helper: conntrack %p has no master\n", ct);
                 return ret;
         }
 
         read_lock_bh(&nf_conntrack_lock);
         if (!ct->master->helper) {
-                DEBUGP("ipt_helper: master ct %p has no helper\n", 
+                DEBUGP("xt_helper: master ct %p has no helper\n", 
                         exp->expectant);
                 goto out_unlock;
         }
@@ -129,23 +132,29 @@ out_unlock:
 #endif
 
 static int check(const char *tablename,
-                 const struct ipt_ip *ip,
+                 const void *inf,
                  void *matchinfo,
                  unsigned int matchsize,
                  unsigned int hook_mask)
 {
-        struct ipt_helper_info *info = matchinfo;
+        struct xt_helper_info *info = matchinfo;
 
         info->name[29] = '\0';
 
         /* verify size */
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_helper_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_helper_info)))
                 return 0;
 
         return 1;
 }
 
-static struct ipt_match helper_match = {
+static struct xt_match helper_match = {
+        .name           = "helper",
+        .match          = &match,
+        .checkentry     = &check,
+        .me             = THIS_MODULE,
+};
+static struct xt_match helper6_match = {
         .name           = "helper",
         .match          = &match,
         .checkentry     = &check,
@@ -154,13 +163,24 @@ static struct ipt_match helper_match = {
 
 static int __init init(void)
 {
-        need_ip_conntrack();
-        return ipt_register_match(&helper_match);
+        int ret;
+        need_conntrack();
+
+        ret = xt_register_match(AF_INET, &helper_match);
+        if (ret < 0)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &helper6_match);
+        if (ret < 0)
+                xt_unregister_match(AF_INET, &helper_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&helper_match);
+        xt_unregister_match(AF_INET, &helper_match);
+        xt_unregister_match(AF_INET6, &helper6_match);
 }
 
 module_init(init);
diff --git a/net/netfilter/xt_length.c b/net/netfilter/xt_length.c
new file mode 100644
index 000000000000..ab6c710cf88f
--- /dev/null
+++ b/net/netfilter/xt_length.c
@@ -0,0 +1,98 @@
+/* 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 <net/ip.h>
+
+#include <linux/netfilter/xt_length.h>
+#include <linux/netfilter/x_tables.h>
+
+MODULE_AUTHOR("James Morris <jmorris@intercode.com.au>");
+MODULE_DESCRIPTION("IP tables packet length matching module");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_length");
+MODULE_ALIAS("ip6t_length");
+
+static 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)
+{
+        const struct xt_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
+match6(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)
+{
+        const struct xt_length_info *info = matchinfo;
+        u_int16_t pktlen = ntohs(skb->nh.ipv6h->payload_len) + sizeof(struct ipv6hdr);
+        
+        return (pktlen >= info->min && pktlen <= info->max) ^ info->invert;
+}
+
+static int
+checkentry(const char *tablename,
+           const void *ip,
+           void *matchinfo,
+           unsigned int matchsize,
+           unsigned int hook_mask)
+{
+        if (matchsize != XT_ALIGN(sizeof(struct xt_length_info)))
+                return 0;
+
+        return 1;
+}
+
+static struct xt_match length_match = {
+        .name           = "length",
+        .match          = &match,
+        .checkentry     = &checkentry,
+        .me             = THIS_MODULE,
+};
+static struct xt_match length6_match = {
+        .name           = "length",
+        .match          = &match6,
+        .checkentry     = &checkentry,
+        .me             = THIS_MODULE,
+};
+
+static int __init init(void)
+{
+        int ret;
+        ret = xt_register_match(AF_INET, &length_match);
+        if (ret)
+                return ret;
+        ret = xt_register_match(AF_INET6, &length6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &length_match);
+
+        return ret;
+}
+
+static void __exit fini(void)
+{
+        xt_unregister_match(AF_INET, &length_match);
+        xt_unregister_match(AF_INET6, &length6_match);
+}
+
+module_init(init);
+module_exit(fini);
diff --git a/net/ipv4/netfilter/ipt_limit.c b/net/netfilter/xt_limit.c
index 0c24dcc703a5..15e40506bc3a 100644
--- a/net/ipv4/netfilter/ipt_limit.c
+++ b/net/netfilter/xt_limit.c
@@ -18,12 +18,14 @@
 #include <linux/spinlock.h>
 #include <linux/interrupt.h>
 
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_limit.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_limit.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Herve Eychenne <rv@wallfire.org>");
 MODULE_DESCRIPTION("iptables rate limit match");
+MODULE_ALIAS("ipt_limit");
+MODULE_ALIAS("ip6t_limit");
 
 /* The algorithm used is the Simple Token Bucket Filter (TBF)
  * see net/sched/sch_tbf.c in the linux source tree
@@ -68,9 +70,10 @@ ipt_limit_match(const struct sk_buff *skb,
                 const struct net_device *out,
                 const void *matchinfo,
                 int offset,
+                unsigned int protoff,
                 int *hotdrop)
 {
-        struct ipt_rateinfo *r = ((struct ipt_rateinfo *)matchinfo)->master;
+        struct xt_rateinfo *r = ((struct xt_rateinfo *)matchinfo)->master;
         unsigned long now = jiffies;
 
         spin_lock_bh(&limit_lock);
@@ -96,32 +99,32 @@ user2credits(u_int32_t user)
         /* If multiplying would overflow... */
         if (user > 0xFFFFFFFF / (HZ*CREDITS_PER_JIFFY))
                 /* Divide first. */
-                return (user / IPT_LIMIT_SCALE) * HZ * CREDITS_PER_JIFFY;
+                return (user / XT_LIMIT_SCALE) * HZ * CREDITS_PER_JIFFY;
 
-        return (user * HZ * CREDITS_PER_JIFFY) / IPT_LIMIT_SCALE;
+        return (user * HZ * CREDITS_PER_JIFFY) / XT_LIMIT_SCALE;
 }
 
 static int
 ipt_limit_checkentry(const char *tablename,
-                     const struct ipt_ip *ip,
+                     const void *inf,
                      void *matchinfo,
                      unsigned int matchsize,
                      unsigned int hook_mask)
 {
-        struct ipt_rateinfo *r = matchinfo;
+        struct xt_rateinfo *r = matchinfo;
 
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_rateinfo)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_rateinfo)))
                 return 0;
 
         /* Check for overflow. */
         if (r->burst == 0
             || user2credits(r->avg * r->burst) < user2credits(r->avg)) {
-                printk("Overflow in ipt_limit, try lower: %u/%u\n",
+                printk("Overflow in xt_limit, try lower: %u/%u\n",
                        r->avg, r->burst);
                 return 0;
         }
 
-        /* User avg in seconds * IPT_LIMIT_SCALE: convert to jiffies *
+        /* User avg in seconds * XT_LIMIT_SCALE: convert to jiffies *
            128. */
         r->prev = jiffies;
         r->credit = user2credits(r->avg * r->burst);     /* Credits full. */
@@ -134,7 +137,13 @@ ipt_limit_checkentry(const char *tablename,
         return 1;
 }
 
-static struct ipt_match ipt_limit_reg = {
+static struct xt_match ipt_limit_reg = {
+        .name           = "limit",
+        .match          = ipt_limit_match,
+        .checkentry     = ipt_limit_checkentry,
+        .me             = THIS_MODULE,
+};
+static struct xt_match limit6_reg = {
         .name           = "limit",
         .match          = ipt_limit_match,
         .checkentry     = ipt_limit_checkentry,
@@ -143,14 +152,23 @@ static struct ipt_match ipt_limit_reg = {
 
 static int __init init(void)
 {
-        if (ipt_register_match(&ipt_limit_reg))
-                return -EINVAL;
-        return 0;
+        int ret;
+        
+        ret = xt_register_match(AF_INET, &ipt_limit_reg);
+        if (ret)
+                return ret;
+        
+        ret = xt_register_match(AF_INET6, &limit6_reg);
+        if (ret)
+                xt_unregister_match(AF_INET, &ipt_limit_reg);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&ipt_limit_reg);
+        xt_unregister_match(AF_INET, &ipt_limit_reg);
+        xt_unregister_match(AF_INET6, &limit6_reg);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_mac.c b/net/netfilter/xt_mac.c
index 1b9bb4559f80..0461dcb5fc7a 100644
--- a/net/ipv4/netfilter/ipt_mac.c
+++ b/net/netfilter/xt_mac.c
@@ -13,12 +13,15 @@
 #include <linux/if_ether.h>
 #include <linux/etherdevice.h>
 
-#include <linux/netfilter_ipv4/ipt_mac.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter/xt_mac.h>
+#include <linux/netfilter/x_tables.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>");
 MODULE_DESCRIPTION("iptables mac matching module");
+MODULE_ALIAS("ipt_mac");
+MODULE_ALIAS("ip6t_mac");
 
 static int
 match(const struct sk_buff *skb,
@@ -26,9 +29,10 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-    const struct ipt_mac_info *info = matchinfo;
+    const struct xt_mac_info *info = matchinfo;
 
     /* Is mac pointer valid? */
     return (skb->mac.raw >= skb->head
@@ -40,7 +44,7 @@ match(const struct sk_buff *skb,
 
 static int
 ipt_mac_checkentry(const char *tablename,
-                   const struct ipt_ip *ip,
+                   const void *inf,
                    void *matchinfo,
                    unsigned int matchsize,
                    unsigned int hook_mask)
@@ -49,17 +53,23 @@ ipt_mac_checkentry(const char *tablename,
         if (hook_mask
             & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_IN)
                 | (1 << NF_IP_FORWARD))) {
-                printk("ipt_mac: only valid for PRE_ROUTING, LOCAL_IN or FORWARD.\n");
+                printk("xt_mac: only valid for PRE_ROUTING, LOCAL_IN or FORWARD.\n");
                 return 0;
         }
 
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_mac_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_mac_info)))
                 return 0;
 
         return 1;
 }
 
-static struct ipt_match mac_match = {
+static struct xt_match mac_match = {
+        .name           = "mac",
+        .match          = &match,
+        .checkentry     = &ipt_mac_checkentry,
+        .me             = THIS_MODULE,
+};
+static struct xt_match mac6_match = {
         .name           = "mac",
         .match          = &match,
         .checkentry     = &ipt_mac_checkentry,
@@ -68,12 +78,22 @@ static struct ipt_match mac_match = {
 
 static int __init init(void)
 {
-        return ipt_register_match(&mac_match);
+        int ret;
+        ret = xt_register_match(AF_INET, &mac_match);
+        if (ret)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &mac6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &mac_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&mac_match);
+        xt_unregister_match(AF_INET, &mac_match);
+        xt_unregister_match(AF_INET6, &mac6_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_mark.c b/net/netfilter/xt_mark.c
index 00bef6cdd3f8..2a0ac62b72c8 100644
--- a/net/ipv4/netfilter/ipt_mark.c
+++ b/net/netfilter/xt_mark.c
@@ -10,12 +10,14 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 
-#include <linux/netfilter_ipv4/ipt_mark.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter/xt_mark.h>
+#include <linux/netfilter/x_tables.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
 MODULE_DESCRIPTION("iptables mark matching module");
+MODULE_ALIAS("ipt_mark");
+MODULE_ALIAS("ip6t_mark");
 
 static int
 match(const struct sk_buff *skb,
@@ -23,23 +25,24 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_mark_info *info = matchinfo;
+        const struct xt_mark_info *info = matchinfo;
 
         return ((skb->nfmark & info->mask) == info->mark) ^ info->invert;
 }
 
 static int
 checkentry(const char *tablename,
-           const struct ipt_ip *ip,
+           const void *entry,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)
 {
-        struct ipt_mark_info *minfo = (struct ipt_mark_info *) matchinfo;
+        struct xt_mark_info *minfo = (struct xt_mark_info *) matchinfo;
 
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_mark_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_mark_info)))
                 return 0;
 
         if (minfo->mark > 0xffffffff || minfo->mask > 0xffffffff) {
@@ -50,7 +53,14 @@ checkentry(const char *tablename,
         return 1;
 }
 
-static struct ipt_match mark_match = {
+static struct xt_match mark_match = {
+        .name           = "mark",
+        .match          = &match,
+        .checkentry     = &checkentry,
+        .me             = THIS_MODULE,
+};
+
+static struct xt_match mark6_match = {
         .name           = "mark",
         .match          = &match,
         .checkentry     = &checkentry,
@@ -59,12 +69,22 @@ static struct ipt_match mark_match = {
 
 static int __init init(void)
 {
-        return ipt_register_match(&mark_match);
+        int ret;
+        ret = xt_register_match(AF_INET, &mark_match);
+        if (ret)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &mark6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &mark_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&mark_match);
+        xt_unregister_match(AF_INET, &mark_match);
+        xt_unregister_match(AF_INET6, &mark6_match);
 }
 
 module_init(init);
diff --git a/net/ipv6/netfilter/ip6t_physdev.c b/net/netfilter/xt_physdev.c
index 71515c86ece1..19bb57c14dfe 100644
--- a/net/ipv6/netfilter/ip6t_physdev.c
+++ b/net/netfilter/xt_physdev.c
@@ -10,8 +10,8 @@
 
 #include <linux/module.h>
 #include <linux/skbuff.h>
-#include <linux/netfilter_ipv6/ip6t_physdev.h>
-#include <linux/netfilter_ipv6/ip6_tables.h>
+#include <linux/netfilter/xt_physdev.h>
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_bridge.h>
 #define MATCH   1
 #define NOMATCH 0
@@ -19,6 +19,8 @@
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Bart De Schuymer <bdschuym@pandora.be>");
 MODULE_DESCRIPTION("iptables bridge physical device match module");
+MODULE_ALIAS("ipt_physdev");
+MODULE_ALIAS("ip6t_physdev");
 
 static int
 match(const struct sk_buff *skb,
@@ -31,7 +33,7 @@ match(const struct sk_buff *skb,
 {
         int i;
         static const char nulldevname[IFNAMSIZ];
-        const struct ip6t_physdev_info *info = matchinfo;
+        const struct xt_physdev_info *info = matchinfo;
         unsigned int ret;
         const char *indev, *outdev;
         struct nf_bridge_info *nf_bridge;
@@ -41,37 +43,37 @@ match(const struct sk_buff *skb,
          * 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 & IP6T_PHYSDEV_OP_BRIDGED) &&
-                    !(info->invert & IP6T_PHYSDEV_OP_BRIDGED))
+                if ((info->bitmask & XT_PHYSDEV_OP_BRIDGED) &&
+                    !(info->invert & XT_PHYSDEV_OP_BRIDGED))
                         return NOMATCH;
-                if ((info->bitmask & IP6T_PHYSDEV_OP_ISIN) &&
-                    !(info->invert & IP6T_PHYSDEV_OP_ISIN))
+                if ((info->bitmask & XT_PHYSDEV_OP_ISIN) &&
+                    !(info->invert & XT_PHYSDEV_OP_ISIN))
                         return NOMATCH;
-                if ((info->bitmask & IP6T_PHYSDEV_OP_ISOUT) &&
-                    !(info->invert & IP6T_PHYSDEV_OP_ISOUT))
+                if ((info->bitmask & XT_PHYSDEV_OP_ISOUT) &&
+                    !(info->invert & XT_PHYSDEV_OP_ISOUT))
                         return NOMATCH;
-                if ((info->bitmask & IP6T_PHYSDEV_OP_IN) &&
-                    !(info->invert & IP6T_PHYSDEV_OP_IN))
+                if ((info->bitmask & XT_PHYSDEV_OP_IN) &&
+                    !(info->invert & XT_PHYSDEV_OP_IN))
                         return NOMATCH;
-                if ((info->bitmask & IP6T_PHYSDEV_OP_OUT) &&
-                    !(info->invert & IP6T_PHYSDEV_OP_OUT))
+                if ((info->bitmask & XT_PHYSDEV_OP_OUT) &&
+                    !(info->invert & XT_PHYSDEV_OP_OUT))
                         return NOMATCH;
                 return MATCH;
         }
 
         /* This only makes sense in the FORWARD and POSTROUTING chains */
-        if ((info->bitmask & IP6T_PHYSDEV_OP_BRIDGED) &&
+        if ((info->bitmask & XT_PHYSDEV_OP_BRIDGED) &&
             (!!(nf_bridge->mask & BRNF_BRIDGED) ^
-            !(info->invert & IP6T_PHYSDEV_OP_BRIDGED)))
+            !(info->invert & XT_PHYSDEV_OP_BRIDGED)))
                 return NOMATCH;
 
-        if ((info->bitmask & IP6T_PHYSDEV_OP_ISIN &&
-            (!nf_bridge->physindev ^ !!(info->invert & IP6T_PHYSDEV_OP_ISIN))) ||
-            (info->bitmask & IP6T_PHYSDEV_OP_ISOUT &&
-            (!nf_bridge->physoutdev ^ !!(info->invert & IP6T_PHYSDEV_OP_ISOUT))))
+        if ((info->bitmask & XT_PHYSDEV_OP_ISIN &&
+            (!nf_bridge->physindev ^ !!(info->invert & XT_PHYSDEV_OP_ISIN))) ||
+            (info->bitmask & XT_PHYSDEV_OP_ISOUT &&
+            (!nf_bridge->physoutdev ^ !!(info->invert & XT_PHYSDEV_OP_ISOUT))))
                 return NOMATCH;
 
-        if (!(info->bitmask & IP6T_PHYSDEV_OP_IN))
+        if (!(info->bitmask & XT_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++) {
@@ -80,11 +82,11 @@ match(const struct sk_buff *skb,
                         & ((const unsigned int *)info->in_mask)[i];
         }
 
-        if ((ret == 0) ^ !(info->invert & IP6T_PHYSDEV_OP_IN))
+        if ((ret == 0) ^ !(info->invert & XT_PHYSDEV_OP_IN))
                 return NOMATCH;
 
 match_outdev:
-        if (!(info->bitmask & IP6T_PHYSDEV_OP_OUT))
+        if (!(info->bitmask & XT_PHYSDEV_OP_OUT))
                 return MATCH;
         outdev = nf_bridge->physoutdev ?
                  nf_bridge->physoutdev->name : nulldevname;
@@ -94,27 +96,34 @@ match_outdev:
                         & ((const unsigned int *)info->out_mask)[i];
         }
 
-        return (ret != 0) ^ !(info->invert & IP6T_PHYSDEV_OP_OUT);
+        return (ret != 0) ^ !(info->invert & XT_PHYSDEV_OP_OUT);
 }
 
 static int
 checkentry(const char *tablename,
-                       const struct ip6t_ip6 *ip,
+                       const void *ip,
                        void *matchinfo,
                        unsigned int matchsize,
                        unsigned int hook_mask)
 {
-        const struct ip6t_physdev_info *info = matchinfo;
+        const struct xt_physdev_info *info = matchinfo;
 
-        if (matchsize != IP6T_ALIGN(sizeof(struct ip6t_physdev_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_physdev_info)))
                 return 0;
-        if (!(info->bitmask & IP6T_PHYSDEV_OP_MASK) ||
-            info->bitmask & ~IP6T_PHYSDEV_OP_MASK)
+        if (!(info->bitmask & XT_PHYSDEV_OP_MASK) ||
+            info->bitmask & ~XT_PHYSDEV_OP_MASK)
                 return 0;
         return 1;
 }
 
-static struct ip6t_match physdev_match = {
+static struct xt_match physdev_match = {
+        .name           = "physdev",
+        .match          = &match,
+        .checkentry     = &checkentry,
+        .me             = THIS_MODULE,
+};
+
+static struct xt_match physdev6_match = {
         .name           = "physdev",
         .match          = &match,
         .checkentry     = &checkentry,
@@ -123,12 +132,23 @@ static struct ip6t_match physdev_match = {
 
 static int __init init(void)
 {
-        return ip6t_register_match(&physdev_match);
+        int ret;
+
+        ret = xt_register_match(AF_INET, &physdev_match);
+        if (ret < 0)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &physdev6_match);
+        if (ret < 0)
+                xt_unregister_match(AF_INET, &physdev_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ip6t_unregister_match(&physdev_match);
+        xt_unregister_match(AF_INET, &physdev_match);
+        xt_unregister_match(AF_INET6, &physdev6_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_pkttype.c b/net/netfilter/xt_pkttype.c
index 8ddb1dc5e5ae..ab1b2630f97d 100644
--- a/net/ipv4/netfilter/ipt_pkttype.c
+++ b/net/netfilter/xt_pkttype.c
@@ -10,60 +10,72 @@
 #include <linux/if_ether.h>
 #include <linux/if_packet.h>
 
-#include <linux/netfilter_ipv4/ipt_pkttype.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter/xt_pkttype.h>
+#include <linux/netfilter/x_tables.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Michal Ludvig <michal@logix.cz>");
 MODULE_DESCRIPTION("IP tables match to match on linklayer packet type");
+MODULE_ALIAS("ipt_pkttype");
+MODULE_ALIAS("ip6t_pkttype");
 
 static 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)
 {
-    const struct ipt_pkttype_info *info = matchinfo;
+        const struct xt_pkttype_info *info = matchinfo;
 
-    return (skb->pkt_type == info->pkttype) ^ info->invert;
+        return (skb->pkt_type == info->pkttype) ^ info->invert;
 }
 
 static int checkentry(const char *tablename,
-                   const struct ipt_ip *ip,
+                   const void *ip,
                    void *matchinfo,
                    unsigned int matchsize,
                    unsigned int hook_mask)
 {
-/*
-        if (hook_mask
-            & ~((1 << NF_IP_PRE_ROUTING) | (1 << NF_IP_LOCAL_IN)
-                | (1 << NF_IP_FORWARD))) {
-                printk("ipt_pkttype: only valid for PRE_ROUTING, LOCAL_IN or FORWARD.\n");
-                return 0;
-        }
-*/
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_pkttype_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_pkttype_info)))
                 return 0;
 
         return 1;
 }
 
-static struct ipt_match pkttype_match = {
+static struct xt_match pkttype_match = {
         .name           = "pkttype",
         .match          = &match,
         .checkentry     = &checkentry,
         .me             = THIS_MODULE,
 };
+static struct xt_match pkttype6_match = {
+        .name           = "pkttype",
+        .match          = &match,
+        .checkentry     = &checkentry,
+        .me             = THIS_MODULE,
+};
+
 
 static int __init init(void)
 {
-        return ipt_register_match(&pkttype_match);
+        int ret;
+        ret = xt_register_match(AF_INET, &pkttype_match);
+        if (ret)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &pkttype6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &pkttype_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&pkttype_match);
+        xt_unregister_match(AF_INET, &pkttype_match);
+        xt_unregister_match(AF_INET6, &pkttype6_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_realm.c b/net/netfilter/xt_realm.c
index 54a6897ebaa6..2b7e1781d34d 100644
--- a/net/ipv4/netfilter/ipt_realm.c
+++ b/net/netfilter/xt_realm.c
@@ -14,12 +14,14 @@
 #include <linux/netdevice.h>
 #include <net/route.h>
 
-#include <linux/netfilter_ipv4/ipt_realm.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv4.h>
+#include <linux/netfilter/xt_realm.h>
+#include <linux/netfilter/x_tables.h>
 
 MODULE_AUTHOR("Sampsa Ranta <sampsa@netsonic.fi>");
 MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("iptables realm match");
+MODULE_DESCRIPTION("X_tables realm match");
+MODULE_ALIAS("ipt_realm");
 
 static int
 match(const struct sk_buff *skb,
@@ -27,16 +29,17 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_realm_info *info = matchinfo;
+        const struct xt_realm_info *info = matchinfo;
         struct dst_entry *dst = skb->dst;
     
         return (info->id == (dst->tclassid & info->mask)) ^ info->invert;
 }
 
 static int check(const char *tablename,
-                 const struct ipt_ip *ip,
+                 const void *ip,
                  void *matchinfo,
                  unsigned int matchsize,
                  unsigned int hook_mask)
@@ -44,18 +47,18 @@ static int check(const char *tablename,
         if (hook_mask
             & ~((1 << NF_IP_POST_ROUTING) | (1 << NF_IP_FORWARD) |
                 (1 << NF_IP_LOCAL_OUT) | (1 << NF_IP_LOCAL_IN))) {
-                printk("ipt_realm: only valid for POST_ROUTING, LOCAL_OUT, "
+                printk("xt_realm: only valid for POST_ROUTING, LOCAL_OUT, "
                        "LOCAL_IN or FORWARD.\n");
                 return 0;
         }
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_realm_info))) {
-                printk("ipt_realm: invalid matchsize.\n");
+        if (matchsize != XT_ALIGN(sizeof(struct xt_realm_info))) {
+                printk("xt_realm: invalid matchsize.\n");
                 return 0;
         }
         return 1;
 }
 
-static struct ipt_match realm_match = {
+static struct xt_match realm_match = {
         .name           = "realm",
         .match          = match, 
         .checkentry     = check,
@@ -64,12 +67,12 @@ static struct ipt_match realm_match = {
 
 static int __init init(void)
 {
-        return ipt_register_match(&realm_match);
+        return xt_register_match(AF_INET, &realm_match);
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&realm_match);
+        xt_unregister_match(AF_INET, &realm_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_sctp.c b/net/netfilter/xt_sctp.c
index fe2b327bcaa4..10fbfc5ba758 100644
--- a/net/ipv4/netfilter/ipt_sctp.c
+++ b/net/netfilter/xt_sctp.c
@@ -1,10 +1,18 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <net/ip.h>
+#include <net/ipv6.h>
 #include <linux/sctp.h>
 
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_sctp.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_sctp.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
+
+MODULE_LICENSE("GPL");
+MODULE_AUTHOR("Kiran Kumar Immidi");
+MODULE_DESCRIPTION("Match for SCTP protocol packets");
+MODULE_ALIAS("ipt_sctp");
 
 #ifdef DEBUG_SCTP
 #define duprintf(format, args...) printk(format , ## args)
@@ -16,7 +24,7 @@
                                               || (!!((invflag) & (option)) ^ (cond)))
 
 static int
-match_flags(const struct ipt_sctp_flag_info *flag_info,
+match_flags(const struct xt_sctp_flag_info *flag_info,
             const int flag_count,
             u_int8_t chunktype,
             u_int8_t chunkflags)
@@ -32,15 +40,15 @@ match_flags(const struct ipt_sctp_flag_info *flag_info,
         return 1;
 }
 
-static int
+static inline int
 match_packet(const struct sk_buff *skb,
+             unsigned int offset,
              const u_int32_t *chunkmap,
              int chunk_match_type,
-             const struct ipt_sctp_flag_info *flag_info,
+             const struct xt_sctp_flag_info *flag_info,
              const int flag_count,
              int *hotdrop)
 {
-        int offset;
         u_int32_t chunkmapcopy[256 / sizeof (u_int32_t)];
         sctp_chunkhdr_t _sch, *sch;
 
@@ -52,7 +60,6 @@ match_packet(const struct sk_buff *skb,
                 SCTP_CHUNKMAP_COPY(chunkmapcopy, chunkmap);
         }
 
-        offset = skb->nh.iph->ihl * 4 + sizeof (sctp_sctphdr_t);
         do {
                 sch = skb_header_pointer(skb, offset, sizeof(_sch), &_sch);
                 if (sch == NULL) {
@@ -118,19 +125,20 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_sctp_info *info;
+        const struct xt_sctp_info *info;
         sctp_sctphdr_t _sh, *sh;
 
-        info = (const struct ipt_sctp_info *)matchinfo;
+        info = (const struct xt_sctp_info *)matchinfo;
 
         if (offset) {
                 duprintf("Dropping non-first fragment.. FIXME\n");
                 return 0;
         }
         
-        sh = skb_header_pointer(skb, skb->nh.iph->ihl*4, sizeof(_sh), &_sh);
+        sh = skb_header_pointer(skb, protoff, sizeof(_sh), &_sh);
         if (sh == NULL) {
                 duprintf("Dropping evil TCP offset=0 tinygram.\n");
                 *hotdrop = 1;
@@ -140,64 +148,103 @@ match(const struct sk_buff *skb,
 
         return  SCCHECK(((ntohs(sh->source) >= info->spts[0]) 
                         && (ntohs(sh->source) <= info->spts[1])), 
-                        IPT_SCTP_SRC_PORTS, info->flags, info->invflags)
+                        XT_SCTP_SRC_PORTS, info->flags, info->invflags)
                 && SCCHECK(((ntohs(sh->dest) >= info->dpts[0]) 
                         && (ntohs(sh->dest) <= info->dpts[1])), 
-                        IPT_SCTP_DEST_PORTS, info->flags, info->invflags)
-                && SCCHECK(match_packet(skb, info->chunkmap, info->chunk_match_type,
+                        XT_SCTP_DEST_PORTS, info->flags, info->invflags)
+                && SCCHECK(match_packet(skb, protoff,
+                                        info->chunkmap, info->chunk_match_type,
                                         info->flag_info, info->flag_count, 
                                         hotdrop),
-                           IPT_SCTP_CHUNK_TYPES, info->flags, info->invflags);
+                           XT_SCTP_CHUNK_TYPES, info->flags, info->invflags);
 }
 
 static int
 checkentry(const char *tablename,
-           const struct ipt_ip *ip,
+           const void *inf,
+           void *matchinfo,
+           unsigned int matchsize,
+           unsigned int hook_mask)
+{
+        const struct xt_sctp_info *info;
+        const struct ipt_ip *ip = inf;
+
+        info = (const struct xt_sctp_info *)matchinfo;
+
+        return ip->proto == IPPROTO_SCTP
+                && !(ip->invflags & XT_INV_PROTO)
+                && matchsize == XT_ALIGN(sizeof(struct xt_sctp_info))
+                && !(info->flags & ~XT_SCTP_VALID_FLAGS)
+                && !(info->invflags & ~XT_SCTP_VALID_FLAGS)
+                && !(info->invflags & ~info->flags)
+                && ((!(info->flags & XT_SCTP_CHUNK_TYPES)) || 
+                        (info->chunk_match_type &
+                                (SCTP_CHUNK_MATCH_ALL 
+                                | SCTP_CHUNK_MATCH_ANY
+                                | SCTP_CHUNK_MATCH_ONLY)));
+}
+
+static int
+checkentry6(const char *tablename,
+           const void *inf,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)
 {
-        const struct ipt_sctp_info *info;
+        const struct xt_sctp_info *info;
+        const struct ip6t_ip6 *ip = inf;
 
-        info = (const struct ipt_sctp_info *)matchinfo;
+        info = (const struct xt_sctp_info *)matchinfo;
 
         return ip->proto == IPPROTO_SCTP
-                && !(ip->invflags & IPT_INV_PROTO)
-                && matchsize == IPT_ALIGN(sizeof(struct ipt_sctp_info))
-                && !(info->flags & ~IPT_SCTP_VALID_FLAGS)
-                && !(info->invflags & ~IPT_SCTP_VALID_FLAGS)
+                && !(ip->invflags & XT_INV_PROTO)
+                && matchsize == XT_ALIGN(sizeof(struct xt_sctp_info))
+                && !(info->flags & ~XT_SCTP_VALID_FLAGS)
+                && !(info->invflags & ~XT_SCTP_VALID_FLAGS)
                 && !(info->invflags & ~info->flags)
-                && ((!(info->flags & IPT_SCTP_CHUNK_TYPES)) || 
+                && ((!(info->flags & XT_SCTP_CHUNK_TYPES)) || 
                         (info->chunk_match_type &
                                 (SCTP_CHUNK_MATCH_ALL 
                                 | SCTP_CHUNK_MATCH_ANY
                                 | SCTP_CHUNK_MATCH_ONLY)));
 }
 
-static struct ipt_match sctp_match = 
+
+static struct xt_match sctp_match = 
 { 
-        .list = { NULL, NULL},
         .name = "sctp",
         .match = &match,
         .checkentry = &checkentry,
-        .destroy = NULL,
+        .me = THIS_MODULE
+};
+static struct xt_match sctp6_match = 
+{ 
+        .name = "sctp",
+        .match = &match,
+        .checkentry = &checkentry6,
         .me = THIS_MODULE
 };
 
+
 static int __init init(void)
 {
-        return ipt_register_match(&sctp_match);
+        int ret;
+        ret = xt_register_match(AF_INET, &sctp_match);
+        if (ret)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &sctp6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &sctp_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&sctp_match);
+        xt_unregister_match(AF_INET6, &sctp6_match);
+        xt_unregister_match(AF_INET, &sctp_match);
 }
 
 module_init(init);
 module_exit(fini);
-
-MODULE_LICENSE("GPL");
-MODULE_AUTHOR("Kiran Kumar Immidi");
-MODULE_DESCRIPTION("Match for SCTP protocol packets");
-
diff --git a/net/ipv4/netfilter/ipt_state.c b/net/netfilter/xt_state.c
index 4d7f16b70cec..39ce808d40ef 100644
--- a/net/ipv4/netfilter/ipt_state.c
+++ b/net/netfilter/xt_state.c
@@ -1,7 +1,7 @@
 /* Kernel module to match connection tracking information. */
 
 /* (C) 1999-2001 Paul `Rusty' Russell
- * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
+ * (C) 2002-2005 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
@@ -11,12 +11,14 @@
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <net/netfilter/nf_conntrack_compat.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_state.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_state.h>
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Rusty Russell <rusty@rustcorp.com.au>");
-MODULE_DESCRIPTION("iptables connection tracking state match module");
+MODULE_DESCRIPTION("ip[6]_tables connection tracking state match module");
+MODULE_ALIAS("ipt_state");
+MODULE_ALIAS("ip6t_state");
 
 static int
 match(const struct sk_buff *skb,
@@ -24,35 +26,43 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_state_info *sinfo = matchinfo;
+        const struct xt_state_info *sinfo = matchinfo;
         enum ip_conntrack_info ctinfo;
         unsigned int statebit;
 
         if (nf_ct_is_untracked(skb))
-                statebit = IPT_STATE_UNTRACKED;
+                statebit = XT_STATE_UNTRACKED;
         else if (!nf_ct_get_ctinfo(skb, &ctinfo))
-                statebit = IPT_STATE_INVALID;
+                statebit = XT_STATE_INVALID;
         else
-                statebit = IPT_STATE_BIT(ctinfo);
+                statebit = XT_STATE_BIT(ctinfo);
 
         return (sinfo->statemask & statebit);
 }
 
 static int check(const char *tablename,
-                 const struct ipt_ip *ip,
+                 const void *ip,
                  void *matchinfo,
                  unsigned int matchsize,
                  unsigned int hook_mask)
 {
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_state_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_state_info)))
                 return 0;
 
         return 1;
 }
 
-static struct ipt_match state_match = {
+static struct xt_match state_match = {
+        .name           = "state",
+        .match          = &match,
+        .checkentry     = &check,
+        .me             = THIS_MODULE,
+};
+
+static struct xt_match state6_match = {
         .name           = "state",
         .match          = &match,
         .checkentry     = &check,
@@ -61,13 +71,25 @@ static struct ipt_match state_match = {
 
 static int __init init(void)
 {
-        need_ip_conntrack();
-        return ipt_register_match(&state_match);
+        int ret;
+
+        need_conntrack();
+
+        ret = xt_register_match(AF_INET, &state_match);
+        if (ret < 0)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &state6_match);
+        if (ret < 0)
+                xt_unregister_match(AF_INET,&state_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&state_match);
+        xt_unregister_match(AF_INET, &state_match);
+        xt_unregister_match(AF_INET6, &state6_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_string.c b/net/netfilter/xt_string.c
index b5def204d798..7c7d5c8807d6 100644
--- a/net/ipv4/netfilter/ipt_string.c
+++ b/net/netfilter/xt_string.c
@@ -11,23 +11,26 @@
 #include <linux/module.h>
 #include <linux/kernel.h>
 #include <linux/skbuff.h>
-#include <linux/netfilter_ipv4/ip_tables.h>
-#include <linux/netfilter_ipv4/ipt_string.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_string.h>
 #include <linux/textsearch.h>
 
 MODULE_AUTHOR("Pablo Neira Ayuso <pablo@eurodev.net>");
 MODULE_DESCRIPTION("IP tables string match module");
 MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_string");
+MODULE_ALIAS("ip6t_string");
 
 static 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)
 {
         struct ts_state state;
-        struct ipt_string_info *conf = (struct ipt_string_info *) matchinfo;
+        struct xt_string_info *conf = (struct xt_string_info *) matchinfo;
 
         memset(&state, 0, sizeof(struct ts_state));
 
@@ -36,18 +39,18 @@ static int match(const struct sk_buff *skb,
                              != UINT_MAX) && !conf->invert;
 }
 
-#define STRING_TEXT_PRIV(m) ((struct ipt_string_info *) m)
+#define STRING_TEXT_PRIV(m) ((struct xt_string_info *) m)
 
 static int checkentry(const char *tablename,
-                      const struct ipt_ip *ip,
+                      const void *ip,
                       void *matchinfo,
                       unsigned int matchsize,
                       unsigned int hook_mask)
 {
-        struct ipt_string_info *conf = matchinfo;
+        struct xt_string_info *conf = matchinfo;
         struct ts_config *ts_conf;
 
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_string_info)))
+        if (matchsize != XT_ALIGN(sizeof(struct xt_string_info)))
                 return 0;
 
         /* Damn, can't handle this case properly with iptables... */
@@ -69,7 +72,14 @@ static void destroy(void *matchinfo, unsigned int matchsize)
         textsearch_destroy(STRING_TEXT_PRIV(matchinfo)->config);
 }
 
-static struct ipt_match string_match = {
+static struct xt_match string_match = {
+        .name           = "string",
+        .match          = match,
+        .checkentry     = checkentry,
+        .destroy        = destroy,
+        .me             = THIS_MODULE
+};
+static struct xt_match string6_match = {
         .name           = "string",
         .match          = match,
         .checkentry     = checkentry,
@@ -79,12 +89,22 @@ static struct ipt_match string_match = {
 
 static int __init init(void)
 {
-        return ipt_register_match(&string_match);
+        int ret;
+
+        ret = xt_register_match(AF_INET, &string_match);
+        if (ret)
+                return ret;
+        ret = xt_register_match(AF_INET6, &string6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &string_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&string_match);
+        xt_unregister_match(AF_INET, &string_match);
+        xt_unregister_match(AF_INET6, &string6_match);
 }
 
 module_init(init);
diff --git a/net/ipv4/netfilter/ipt_tcpmss.c b/net/netfilter/xt_tcpmss.c
index 4dc9b16ab4a3..acf7f533e9f1 100644
--- a/net/ipv4/netfilter/ipt_tcpmss.c
+++ b/net/netfilter/xt_tcpmss.c
@@ -1,6 +1,7 @@
 /* Kernel module to match TCP MSS values. */
 
 /* Copyright (C) 2000 Marc Boucher <marc@mbsi.ca>
+ * Portions (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
@@ -11,19 +12,24 @@
 #include <linux/skbuff.h>
 #include <net/tcp.h>
 
-#include <linux/netfilter_ipv4/ipt_tcpmss.h>
+#include <linux/netfilter/xt_tcpmss.h>
+#include <linux/netfilter/x_tables.h>
+
 #include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
 
 #define TH_SYN 0x02
 
 MODULE_LICENSE("GPL");
 MODULE_AUTHOR("Marc Boucher <marc@mbsi.ca>");
 MODULE_DESCRIPTION("iptables TCP MSS match module");
+MODULE_ALIAS("ipt_tcpmss");
 
 /* Returns 1 if the mss option is set and matched by the range, 0 otherwise */
 static inline int
 mssoption_match(u_int16_t min, u_int16_t max,
                 const struct sk_buff *skb,
+                unsigned int protoff,
                 int invert,
                 int *hotdrop)
 {
@@ -33,8 +39,7 @@ mssoption_match(u_int16_t min, u_int16_t max,
         unsigned int i, optlen;
 
         /* If we don't have the whole header, drop packet. */
-        th = skb_header_pointer(skb, skb->nh.iph->ihl * 4,
-                                sizeof(_tcph), &_tcph);
+        th = skb_header_pointer(skb, protoff, sizeof(_tcph), &_tcph);
         if (th == NULL)
                 goto dropit;
 
@@ -47,8 +52,7 @@ mssoption_match(u_int16_t min, u_int16_t max,
                 goto out;
 
         /* Truncated options. */
-        op = skb_header_pointer(skb, skb->nh.iph->ihl * 4 + sizeof(*th),
-                                optlen, _opt);
+        op = skb_header_pointer(skb, protoff + sizeof(*th), optlen, _opt);
         if (op == NULL)
                 goto dropit;
 
@@ -79,22 +83,24 @@ match(const struct sk_buff *skb,
       const struct net_device *out,
       const void *matchinfo,
       int offset,
+      unsigned int protoff,
       int *hotdrop)
 {
-        const struct ipt_tcpmss_match_info *info = matchinfo;
+        const struct xt_tcpmss_match_info *info = matchinfo;
 
-        return mssoption_match(info->mss_min, info->mss_max, skb,
+        return mssoption_match(info->mss_min, info->mss_max, skb, protoff,
                                info->invert, hotdrop);
 }
 
 static int
 checkentry(const char *tablename,
-           const struct ipt_ip *ip,
+           const void *ipinfo,
            void *matchinfo,
            unsigned int matchsize,
            unsigned int hook_mask)
 {
-        if (matchsize != IPT_ALIGN(sizeof(struct ipt_tcpmss_match_info)))
+        const struct ipt_ip *ip = ipinfo;
+        if (matchsize != XT_ALIGN(sizeof(struct xt_tcpmss_match_info)))
                 return 0;
 
         /* Must specify -p tcp */
@@ -106,21 +112,60 @@ checkentry(const char *tablename,
         return 1;
 }
 
-static struct ipt_match tcpmss_match = {
+static int
+checkentry6(const char *tablename,
+           const void *ipinfo,
+           void *matchinfo,
+           unsigned int matchsize,
+           unsigned int hook_mask)
+{
+        const struct ip6t_ip6 *ip = ipinfo;
+
+        if (matchsize != XT_ALIGN(sizeof(struct xt_tcpmss_match_info)))
+                return 0;
+
+        /* Must specify -p tcp */
+        if (ip->proto != IPPROTO_TCP || (ip->invflags & XT_INV_PROTO)) {
+                printk("tcpmss: Only works on TCP packets\n");
+                return 0;
+        }
+
+        return 1;
+}
+
+static struct xt_match tcpmss_match = {
         .name           = "tcpmss",
         .match          = &match,
         .checkentry     = &checkentry,
         .me             = THIS_MODULE,
 };
 
+static struct xt_match tcpmss6_match = {
+        .name           = "tcpmss",
+        .match          = &match,
+        .checkentry     = &checkentry6,
+        .me             = THIS_MODULE,
+};
+
+
 static int __init init(void)
 {
-        return ipt_register_match(&tcpmss_match);
+        int ret;
+        ret = xt_register_match(AF_INET, &tcpmss_match);
+        if (ret)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &tcpmss6_match);
+        if (ret)
+                xt_unregister_match(AF_INET, &tcpmss_match);
+
+        return ret;
 }
 
 static void __exit fini(void)
 {
-        ipt_unregister_match(&tcpmss_match);
+        xt_unregister_match(AF_INET6, &tcpmss6_match);
+        xt_unregister_match(AF_INET, &tcpmss_match);
 }
 
 module_init(init);
diff --git a/net/netfilter/xt_tcpudp.c b/net/netfilter/xt_tcpudp.c
new file mode 100644
index 000000000000..33f86fd6f3e6
--- /dev/null
+++ b/net/netfilter/xt_tcpudp.c
@@ -0,0 +1,333 @@
+#include <linux/types.h>
+#include <linux/module.h>
+#include <net/ip.h>
+#include <net/ipv6.h>
+#include <net/tcp.h>
+#include <net/udp.h>
+#include <linux/netfilter/x_tables.h>
+#include <linux/netfilter/xt_tcpudp.h>
+#include <linux/netfilter_ipv4/ip_tables.h>
+#include <linux/netfilter_ipv6/ip6_tables.h>
+
+MODULE_DESCRIPTION("x_tables match for TCP and UDP, supports IPv4 and IPv6");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("xt_tcp");
+MODULE_ALIAS("xt_udp");
+MODULE_ALIAS("ipt_udp");
+MODULE_ALIAS("ipt_tcp");
+MODULE_ALIAS("ip6t_udp");
+MODULE_ALIAS("ip6t_tcp");
+
+#ifdef DEBUG_IP_FIREWALL_USER
+#define duprintf(format, args...) printk(format , ## args)
+#else
+#define duprintf(format, args...)
+#endif
+
+
+/* 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 protoff,
+                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, protoff + 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,
+          unsigned int protoff,
+          int *hotdrop)
+{
+        struct tcphdr _tcph, *th;
+        const struct xt_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, protoff, 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 & XT_TCP_INV_SRCPT)))
+                return 0;
+        if (!port_match(tcpinfo->dpts[0], tcpinfo->dpts[1],
+                        ntohs(th->dest),
+                        !!(tcpinfo->invflags & XT_TCP_INV_DSTPT)))
+                return 0;
+        if (!FWINVTCP((((unsigned char *)th)[13] & tcpinfo->flg_mask)
+                      == tcpinfo->flg_cmp,
+                      XT_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, protoff,
+                                     th->doff*4 - sizeof(_tcph),
+                                     tcpinfo->invflags & XT_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 void *info,
+               void *matchinfo,
+               unsigned int matchsize,
+               unsigned int hook_mask)
+{
+        const struct ipt_ip *ip = info;
+        const struct xt_tcp *tcpinfo = matchinfo;
+
+        /* Must specify proto == TCP, and no unknown invflags */
+        return ip->proto == IPPROTO_TCP
+                && !(ip->invflags & XT_INV_PROTO)
+                && matchsize == XT_ALIGN(sizeof(struct xt_tcp))
+                && !(tcpinfo->invflags & ~XT_TCP_INV_MASK);
+}
+
+/* Called when user tries to insert an entry of this type. */
+static int
+tcp6_checkentry(const char *tablename,
+               const void *entry,
+               void *matchinfo,
+               unsigned int matchsize,
+               unsigned int hook_mask)
+{
+        const struct ip6t_ip6 *ipv6 = entry;
+        const struct xt_tcp *tcpinfo = matchinfo;
+
+        /* Must specify proto == TCP, and no unknown invflags */
+        return ipv6->proto == IPPROTO_TCP
+                && !(ipv6->invflags & XT_INV_PROTO)
+                && matchsize == XT_ALIGN(sizeof(struct xt_tcp))
+                && !(tcpinfo->invflags & ~XT_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,
+          unsigned int protoff,
+          int *hotdrop)
+{
+        struct udphdr _udph, *uh;
+        const struct xt_udp *udpinfo = matchinfo;
+
+        /* Must not be a fragment. */
+        if (offset)
+                return 0;
+
+        uh = skb_header_pointer(skb, protoff, 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 & XT_UDP_INV_SRCPT))
+                && port_match(udpinfo->dpts[0], udpinfo->dpts[1],
+                              ntohs(uh->dest),
+                              !!(udpinfo->invflags & XT_UDP_INV_DSTPT));
+}
+
+/* Called when user tries to insert an entry of this type. */
+static int
+udp_checkentry(const char *tablename,
+               const void *info,
+               void *matchinfo,
+               unsigned int matchinfosize,
+               unsigned int hook_mask)
+{
+        const struct ipt_ip *ip = info;
+        const struct xt_udp *udpinfo = matchinfo;
+
+        /* Must specify proto == UDP, and no unknown invflags */
+        if (ip->proto != IPPROTO_UDP || (ip->invflags & XT_INV_PROTO)) {
+                duprintf("ipt_udp: Protocol %u != %u\n", ip->proto,
+                         IPPROTO_UDP);
+                return 0;
+        }
+        if (matchinfosize != XT_ALIGN(sizeof(struct xt_udp))) {
+                duprintf("ipt_udp: matchsize %u != %u\n",
+                         matchinfosize, XT_ALIGN(sizeof(struct xt_udp)));
+                return 0;
+        }
+        if (udpinfo->invflags & ~XT_UDP_INV_MASK) {
+                duprintf("ipt_udp: unknown flags %X\n",
+                         udpinfo->invflags);
+                return 0;
+        }
+
+        return 1;
+}
+
+/* Called when user tries to insert an entry of this type. */
+static int
+udp6_checkentry(const char *tablename,
+               const void *entry,
+               void *matchinfo,
+               unsigned int matchinfosize,
+               unsigned int hook_mask)
+{
+        const struct ip6t_ip6 *ipv6 = entry;
+        const struct xt_udp *udpinfo = matchinfo;
+
+        /* Must specify proto == UDP, and no unknown invflags */
+        if (ipv6->proto != IPPROTO_UDP || (ipv6->invflags & XT_INV_PROTO)) {
+                duprintf("ip6t_udp: Protocol %u != %u\n", ipv6->proto,
+                         IPPROTO_UDP);
+                return 0;
+        }
+        if (matchinfosize != XT_ALIGN(sizeof(struct xt_udp))) {
+                duprintf("ip6t_udp: matchsize %u != %u\n",
+                         matchinfosize, XT_ALIGN(sizeof(struct xt_udp)));
+                return 0;
+        }
+        if (udpinfo->invflags & ~XT_UDP_INV_MASK) {
+                duprintf("ip6t_udp: unknown flags %X\n",
+                         udpinfo->invflags);
+                return 0;
+        }
+
+        return 1;
+}
+
+static struct xt_match tcp_matchstruct = {
+        .name           = "tcp",
+        .match          = &tcp_match,
+        .checkentry     = &tcp_checkentry,
+        .me             = THIS_MODULE,
+};
+static struct xt_match tcp6_matchstruct = {
+        .name           = "tcp",
+        .match          = &tcp_match,
+        .checkentry     = &tcp6_checkentry,
+        .me             = THIS_MODULE,
+};
+
+static struct xt_match udp_matchstruct = {
+        .name           = "udp",
+        .match          = &udp_match,
+        .checkentry     = &udp_checkentry,
+        .me             = THIS_MODULE,
+};
+static struct xt_match udp6_matchstruct = {
+        .name           = "udp",
+        .match          = &udp_match,
+        .checkentry     = &udp6_checkentry,
+        .me             = THIS_MODULE,
+};
+
+static int __init init(void)
+{
+        int ret;
+        ret = xt_register_match(AF_INET, &tcp_matchstruct);
+        if (ret)
+                return ret;
+
+        ret = xt_register_match(AF_INET6, &tcp6_matchstruct);
+        if (ret)
+                goto out_unreg_tcp;
+
+        ret = xt_register_match(AF_INET, &udp_matchstruct);
+        if (ret)
+                goto out_unreg_tcp6;
+        
+        ret = xt_register_match(AF_INET6, &udp6_matchstruct);
+        if (ret)
+                goto out_unreg_udp;
+
+        return ret;
+
+out_unreg_udp:
+        xt_unregister_match(AF_INET, &tcp_matchstruct);
+out_unreg_tcp6:
+        xt_unregister_match(AF_INET6, &tcp6_matchstruct);
+out_unreg_tcp:
+        xt_unregister_match(AF_INET, &tcp_matchstruct);
+        return ret;
+}
+
+static void __exit fini(void)
+{
+        xt_unregister_match(AF_INET6, &udp6_matchstruct);
+        xt_unregister_match(AF_INET, &udp_matchstruct);
+        xt_unregister_match(AF_INET6, &tcp6_matchstruct);
+        xt_unregister_match(AF_INET, &tcp_matchstruct);
+}
+
+module_init(init);
+module_exit(fini);
diff --git a/net/sched/act_ipt.c b/net/sched/act_ipt.c
index b5001939b74b..39a22a3ffe78 100644
--- a/net/sched/act_ipt.c
+++ b/net/sched/act_ipt.c
@@ -62,7 +62,7 @@ ipt_init_target(struct ipt_entry_target *t, char *table, unsigned int hook)
         struct ipt_target *target;
         int ret = 0;
 
-        target = ipt_find_target(t->u.user.name, t->u.user.revision);
+        target = xt_find_target(AF_INET, t->u.user.name, t->u.user.revision);
         if (!target)
                 return -ENOENT;