[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>
2006-01-12 21:30:04 +00:00
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#ifndef _X_TABLES_H
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#define _X_TABLES_H
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#define XT_FUNCTION_MAXNAMELEN 30
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#define XT_TABLE_MAXNAMELEN 32
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2006-03-22 21:56:56 +00:00
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struct xt_entry_match
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{
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union {
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struct {
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u_int16_t match_size;
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/* Used by userspace */
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char name[XT_FUNCTION_MAXNAMELEN-1];
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u_int8_t revision;
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} user;
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struct {
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u_int16_t match_size;
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/* Used inside the kernel */
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struct xt_match *match;
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} kernel;
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/* Total length */
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u_int16_t match_size;
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} u;
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unsigned char data[0];
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};
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struct xt_entry_target
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{
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union {
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struct {
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u_int16_t target_size;
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/* Used by userspace */
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char name[XT_FUNCTION_MAXNAMELEN-1];
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u_int8_t revision;
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} user;
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struct {
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u_int16_t target_size;
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/* Used inside the kernel */
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struct xt_target *target;
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} kernel;
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/* Total length */
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u_int16_t target_size;
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} u;
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unsigned char data[0];
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};
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struct xt_standard_target
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{
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struct xt_entry_target target;
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int verdict;
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};
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[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>
2006-01-12 21:30:04 +00:00
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/* The argument to IPT_SO_GET_REVISION_*. Returns highest revision
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* kernel supports, if >= revision. */
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struct xt_get_revision
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{
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char name[XT_FUNCTION_MAXNAMELEN-1];
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u_int8_t revision;
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};
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/* CONTINUE verdict for targets */
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#define XT_CONTINUE 0xFFFFFFFF
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/* For standard target */
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#define XT_RETURN (-NF_REPEAT - 1)
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2006-01-20 19:57:07 +00:00
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/* this is a dummy structure to find out the alignment requirement for a struct
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* containing all the fundamental data types that are used in ipt_entry,
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* ip6t_entry and arpt_entry. This sucks, and it is a hack. It will be my
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* personal pleasure to remove it -HW
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*/
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struct _xt_align
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{
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u_int8_t u8;
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u_int16_t u16;
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u_int32_t u32;
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u_int64_t u64;
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};
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#define XT_ALIGN(s) (((s) + (__alignof__(struct _xt_align)-1)) \
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& ~(__alignof__(struct _xt_align)-1))
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[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>
2006-01-12 21:30:04 +00:00
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/* Standard return verdict, or do jump. */
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#define XT_STANDARD_TARGET ""
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/* Error verdict. */
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#define XT_ERROR_TARGET "ERROR"
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/*
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* New IP firewall options for [gs]etsockopt at the RAW IP level.
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* Unlike BSD Linux inherits IP options so you don't have to use a raw
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* socket for this. Instead we check rights in the calls. */
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#define XT_BASE_CTL 64 /* base for firewall socket options */
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#define XT_SO_SET_REPLACE (XT_BASE_CTL)
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#define XT_SO_SET_ADD_COUNTERS (XT_BASE_CTL + 1)
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#define XT_SO_SET_MAX XT_SO_SET_ADD_COUNTERS
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#define XT_SO_GET_INFO (XT_BASE_CTL)
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#define XT_SO_GET_ENTRIES (XT_BASE_CTL + 1)
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#define XT_SO_GET_REVISION_MATCH (XT_BASE_CTL + 2)
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#define XT_SO_GET_REVISION_TARGET (XT_BASE_CTL + 3)
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#define XT_SO_GET_MAX XT_SO_GET_REVISION_TARGET
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#define SET_COUNTER(c,b,p) do { (c).bcnt = (b); (c).pcnt = (p); } while(0)
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#define ADD_COUNTER(c,b,p) do { (c).bcnt += (b); (c).pcnt += (p); } while(0)
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struct xt_counters
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{
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u_int64_t pcnt, bcnt; /* Packet and byte counters */
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};
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/* The argument to IPT_SO_ADD_COUNTERS. */
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struct xt_counters_info
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{
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/* Which table. */
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char name[XT_TABLE_MAXNAMELEN];
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unsigned int num_counters;
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/* The counters (actually `number' of these). */
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struct xt_counters counters[0];
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};
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#define XT_INV_PROTO 0x40 /* Invert the sense of PROTO. */
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#ifdef __KERNEL__
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#include <linux/netdevice.h>
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#define ASSERT_READ_LOCK(x)
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#define ASSERT_WRITE_LOCK(x)
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#include <linux/netfilter_ipv4/listhelp.h>
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2006-04-01 10:25:19 +00:00
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#ifdef CONFIG_COMPAT
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#define COMPAT_TO_USER 1
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#define COMPAT_FROM_USER -1
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#define COMPAT_CALC_SIZE 0
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#endif
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[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>
2006-01-12 21:30:04 +00:00
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struct xt_match
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{
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struct list_head list;
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const char name[XT_FUNCTION_MAXNAMELEN-1];
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/* Return true or false: return FALSE and set *hotdrop = 1 to
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force immediate packet drop. */
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/* Arguments changed since 2.6.9, as this must now handle
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non-linear skb, using skb_header_pointer and
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skb_ip_make_writable. */
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int (*match)(const struct sk_buff *skb,
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const struct net_device *in,
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const struct net_device *out,
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2006-03-21 02:02:15 +00:00
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const struct xt_match *match,
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[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>
2006-01-12 21:30:04 +00:00
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const void *matchinfo,
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int offset,
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unsigned int protoff,
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int *hotdrop);
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/* Called when user tries to insert an entry of this type. */
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/* Should return true or false. */
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int (*checkentry)(const char *tablename,
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const void *ip,
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2006-03-21 02:02:15 +00:00
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const struct xt_match *match,
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[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>
2006-01-12 21:30:04 +00:00
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void *matchinfo,
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unsigned int matchinfosize,
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unsigned int hook_mask);
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/* Called when entry of this type deleted. */
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2006-03-21 02:02:15 +00:00
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void (*destroy)(const struct xt_match *match, void *matchinfo,
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unsigned int matchinfosize);
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[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>
2006-01-12 21:30:04 +00:00
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2006-04-01 10:25:19 +00:00
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/* Called when userspace align differs from kernel space one */
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int (*compat)(void *match, void **dstptr, int *size, int convert);
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[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>
2006-01-12 21:30:04 +00:00
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/* Set this to THIS_MODULE if you are a module, otherwise NULL */
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struct module *me;
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2006-03-21 01:59:06 +00:00
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char *table;
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unsigned int matchsize;
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unsigned int hooks;
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unsigned short proto;
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2006-03-21 02:03:40 +00:00
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unsigned short family;
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2006-03-21 01:59:06 +00:00
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u_int8_t revision;
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[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>
2006-01-12 21:30:04 +00:00
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};
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/* Registration hooks for targets. */
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struct xt_target
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{
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struct list_head list;
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const char name[XT_FUNCTION_MAXNAMELEN-1];
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/* Returns verdict. Argument order changed since 2.6.9, as this
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must now handle non-linear skbs, using skb_copy_bits and
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skb_ip_make_writable. */
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unsigned int (*target)(struct sk_buff **pskb,
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const struct net_device *in,
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const struct net_device *out,
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unsigned int hooknum,
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2006-03-21 02:02:15 +00:00
|
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const struct xt_target *target,
|
[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>
2006-01-12 21:30:04 +00:00
|
|
|
const void *targinfo,
|
|
|
|
void *userdata);
|
|
|
|
|
|
|
|
/* Called when user tries to insert an entry of this type:
|
|
|
|
hook_mask is a bitmask of hooks from which it can be
|
|
|
|
called. */
|
|
|
|
/* Should return true or false. */
|
|
|
|
int (*checkentry)(const char *tablename,
|
|
|
|
const void *entry,
|
2006-03-21 02:02:15 +00:00
|
|
|
const struct xt_target *target,
|
[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>
2006-01-12 21:30:04 +00:00
|
|
|
void *targinfo,
|
|
|
|
unsigned int targinfosize,
|
|
|
|
unsigned int hook_mask);
|
|
|
|
|
|
|
|
/* Called when entry of this type deleted. */
|
2006-03-21 02:02:15 +00:00
|
|
|
void (*destroy)(const struct xt_target *target, void *targinfo,
|
|
|
|
unsigned int targinfosize);
|
[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>
2006-01-12 21:30:04 +00:00
|
|
|
|
2006-04-01 10:25:19 +00:00
|
|
|
/* Called when userspace align differs from kernel space one */
|
|
|
|
int (*compat)(void *target, void **dstptr, int *size, int convert);
|
|
|
|
|
[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>
2006-01-12 21:30:04 +00:00
|
|
|
/* Set this to THIS_MODULE if you are a module, otherwise NULL */
|
|
|
|
struct module *me;
|
2006-03-21 01:59:06 +00:00
|
|
|
|
|
|
|
char *table;
|
|
|
|
unsigned int targetsize;
|
|
|
|
unsigned int hooks;
|
|
|
|
unsigned short proto;
|
2006-03-21 02:03:40 +00:00
|
|
|
|
|
|
|
unsigned short family;
|
2006-03-21 01:59:06 +00:00
|
|
|
u_int8_t revision;
|
[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>
2006-01-12 21:30:04 +00:00
|
|
|
};
|
|
|
|
|
|
|
|
/* Furniture shopping... */
|
|
|
|
struct xt_table
|
|
|
|
{
|
|
|
|
struct list_head list;
|
|
|
|
|
|
|
|
/* A unique name... */
|
|
|
|
char name[XT_TABLE_MAXNAMELEN];
|
|
|
|
|
|
|
|
/* What hooks you will enter on */
|
|
|
|
unsigned int valid_hooks;
|
|
|
|
|
|
|
|
/* Lock for the curtain */
|
|
|
|
rwlock_t lock;
|
|
|
|
|
|
|
|
/* Man behind the curtain... */
|
|
|
|
//struct ip6t_table_info *private;
|
|
|
|
void *private;
|
|
|
|
|
|
|
|
/* Set this to THIS_MODULE if you are a module, otherwise NULL */
|
|
|
|
struct module *me;
|
|
|
|
|
|
|
|
int af; /* address/protocol family */
|
|
|
|
};
|
|
|
|
|
|
|
|
#include <linux/netfilter_ipv4.h>
|
|
|
|
|
|
|
|
/* The table itself */
|
|
|
|
struct xt_table_info
|
|
|
|
{
|
|
|
|
/* Size per table */
|
|
|
|
unsigned int size;
|
|
|
|
/* Number of entries: FIXME. --RR */
|
|
|
|
unsigned int number;
|
|
|
|
/* Initial number of entries. Needed for module usage count */
|
|
|
|
unsigned int initial_entries;
|
|
|
|
|
|
|
|
/* Entry points and underflows */
|
|
|
|
unsigned int hook_entry[NF_IP_NUMHOOKS];
|
|
|
|
unsigned int underflow[NF_IP_NUMHOOKS];
|
|
|
|
|
|
|
|
/* ipt_entry tables: one per CPU */
|
|
|
|
char *entries[NR_CPUS];
|
|
|
|
};
|
|
|
|
|
2006-03-22 21:55:40 +00:00
|
|
|
extern int xt_register_target(struct xt_target *target);
|
|
|
|
extern void xt_unregister_target(struct xt_target *target);
|
|
|
|
extern int xt_register_match(struct xt_match *target);
|
|
|
|
extern void xt_unregister_match(struct xt_match *target);
|
[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>
2006-01-12 21:30:04 +00:00
|
|
|
|
2006-03-21 01:59:06 +00:00
|
|
|
extern int xt_check_match(const struct xt_match *match, unsigned short family,
|
|
|
|
unsigned int size, const char *table, unsigned int hook,
|
|
|
|
unsigned short proto, int inv_proto);
|
|
|
|
extern int xt_check_target(const struct xt_target *target, unsigned short family,
|
|
|
|
unsigned int size, const char *table, unsigned int hook,
|
|
|
|
unsigned short proto, int inv_proto);
|
|
|
|
|
[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>
2006-01-12 21:30:04 +00:00
|
|
|
extern int xt_register_table(struct xt_table *table,
|
|
|
|
struct xt_table_info *bootstrap,
|
|
|
|
struct xt_table_info *newinfo);
|
|
|
|
extern void *xt_unregister_table(struct xt_table *table);
|
|
|
|
|
|
|
|
extern struct xt_table_info *xt_replace_table(struct xt_table *table,
|
|
|
|
unsigned int num_counters,
|
|
|
|
struct xt_table_info *newinfo,
|
|
|
|
int *error);
|
|
|
|
|
|
|
|
extern struct xt_match *xt_find_match(int af, const char *name, u8 revision);
|
|
|
|
extern struct xt_target *xt_find_target(int af, const char *name, u8 revision);
|
|
|
|
extern struct xt_target *xt_request_find_target(int af, const char *name,
|
|
|
|
u8 revision);
|
|
|
|
extern int xt_find_revision(int af, const char *name, u8 revision, int target,
|
|
|
|
int *err);
|
|
|
|
|
|
|
|
extern struct xt_table *xt_find_table_lock(int af, const char *name);
|
|
|
|
extern void xt_table_unlock(struct xt_table *t);
|
|
|
|
|
|
|
|
extern int xt_proto_init(int af);
|
|
|
|
extern void xt_proto_fini(int af);
|
|
|
|
|
|
|
|
extern struct xt_table_info *xt_alloc_table_info(unsigned int size);
|
|
|
|
extern void xt_free_table_info(struct xt_table_info *info);
|
|
|
|
|
2006-04-01 10:25:19 +00:00
|
|
|
#ifdef CONFIG_COMPAT
|
|
|
|
#include <net/compat.h>
|
|
|
|
|
|
|
|
struct compat_xt_entry_match
|
|
|
|
{
|
|
|
|
union {
|
|
|
|
struct {
|
|
|
|
u_int16_t match_size;
|
|
|
|
char name[XT_FUNCTION_MAXNAMELEN - 1];
|
|
|
|
u_int8_t revision;
|
|
|
|
} user;
|
|
|
|
u_int16_t match_size;
|
|
|
|
} u;
|
|
|
|
unsigned char data[0];
|
|
|
|
};
|
|
|
|
|
|
|
|
struct compat_xt_entry_target
|
|
|
|
{
|
|
|
|
union {
|
|
|
|
struct {
|
|
|
|
u_int16_t target_size;
|
|
|
|
char name[XT_FUNCTION_MAXNAMELEN - 1];
|
|
|
|
u_int8_t revision;
|
|
|
|
} user;
|
|
|
|
u_int16_t target_size;
|
|
|
|
} u;
|
|
|
|
unsigned char data[0];
|
|
|
|
};
|
|
|
|
|
|
|
|
/* FIXME: this works only on 32 bit tasks
|
|
|
|
* need to change whole approach in order to calculate align as function of
|
|
|
|
* current task alignment */
|
|
|
|
|
|
|
|
struct compat_xt_counters
|
|
|
|
{
|
|
|
|
u_int32_t cnt[4];
|
|
|
|
};
|
|
|
|
|
|
|
|
struct compat_xt_counters_info
|
|
|
|
{
|
|
|
|
char name[XT_TABLE_MAXNAMELEN];
|
|
|
|
compat_uint_t num_counters;
|
|
|
|
struct compat_xt_counters counters[0];
|
|
|
|
};
|
|
|
|
|
|
|
|
#define COMPAT_XT_ALIGN(s) (((s) + (__alignof__(struct compat_xt_counters)-1)) \
|
|
|
|
& ~(__alignof__(struct compat_xt_counters)-1))
|
|
|
|
|
|
|
|
extern void xt_compat_lock(int af);
|
|
|
|
extern void xt_compat_unlock(int af);
|
|
|
|
extern int xt_compat_match(void *match, void **dstptr, int *size, int convert);
|
|
|
|
extern int xt_compat_target(void *target, void **dstptr, int *size,
|
|
|
|
int convert);
|
|
|
|
|
|
|
|
#endif /* CONFIG_COMPAT */
|
[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>
2006-01-12 21:30:04 +00:00
|
|
|
#endif /* __KERNEL__ */
|
|
|
|
|
|
|
|
#endif /* _X_TABLES_H */
|