blob: 610208b18c05819dc4cfecc0554574269157f90f [file] [log] [blame]
* 25-Jul-1998 Major changes to allow for ip chain table
* 3-Jan-2000 Named tables to allow packet selection for different uses.
* Format of an IP6 firewall descriptor
* src, dst, src_mask, dst_mask are always stored in network byte order.
* flags are stored in host byte order (of course).
* Port numbers are stored in HOST byte order.
#ifndef _IP6_TABLES_H
#define _IP6_TABLES_H
#include <linux/if.h>
#include <linux/in6.h>
#include <linux/ipv6.h>
#include <linux/skbuff.h>
#include <linux/init.h>
#include <uapi/linux/netfilter_ipv6/ip6_tables.h>
extern void ip6t_init(void) __init;
extern void *ip6t_alloc_initial_table(const struct xt_table *);
extern struct xt_table *ip6t_register_table(struct net *net,
const struct xt_table *table,
const struct ip6t_replace *repl);
extern void ip6t_unregister_table(struct net *net, struct xt_table *table);
extern unsigned int ip6t_do_table(struct sk_buff *skb,
unsigned int hook,
const struct net_device *in,
const struct net_device *out,
struct xt_table *table);
/* Check for an extension */
static inline int
ip6t_ext_hdr(u8 nexthdr)
{ return (nexthdr == IPPROTO_HOPOPTS) ||
(nexthdr == IPPROTO_ROUTING) ||
(nexthdr == IPPROTO_FRAGMENT) ||
(nexthdr == IPPROTO_ESP) ||
(nexthdr == IPPROTO_AH) ||
(nexthdr == IPPROTO_NONE) ||
(nexthdr == IPPROTO_DSTOPTS);
#include <net/compat.h>
struct compat_ip6t_entry {
struct ip6t_ip6 ipv6;
compat_uint_t nfcache;
__u16 target_offset;
__u16 next_offset;
compat_uint_t comefrom;
struct compat_xt_counters counters;
unsigned char elems[0];
static inline struct xt_entry_target *
compat_ip6t_get_target(struct compat_ip6t_entry *e)
return (void *)e + e->target_offset;
#endif /* CONFIG_COMPAT */
#endif /* _IP6_TABLES_H */