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/* The "unknown" protocol. This is what is used for protocols we
* don't understand. It's returned by ip_ct_find_proto().
*/
/* (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/types.h>
#include <linux/init.h>
#include <linux/netfilter.h>
#include <linux/if.h>
#include <linux/netfilter_ipv4/ip_nat.h>
#include <linux/netfilter_ipv4/ip_nat_rule.h>
#include <linux/netfilter_ipv4/ip_nat_protocol.h>
static int unknown_in_range(const struct ip_conntrack_tuple *tuple,
enum ip_nat_manip_type manip_type,
const union ip_conntrack_manip_proto *min,
const union ip_conntrack_manip_proto *max)
{
return 1;
}
static int unknown_unique_tuple(struct ip_conntrack_tuple *tuple,
const struct ip_nat_range *range,
enum ip_nat_manip_type maniptype,
const struct ip_conntrack *conntrack)
{
/* Sorry: we can't help you; if it's not unique, we can't frob
anything. */
return 0;
}
static int
unknown_manip_pkt(struct sk_buff **pskb,
unsigned int iphdroff,
const struct ip_conntrack_tuple *tuple,
enum ip_nat_manip_type maniptype)
{
return 1;
}
static unsigned int
unknown_print(char *buffer,
const struct ip_conntrack_tuple *match,
const struct ip_conntrack_tuple *mask)
{
return 0;
}
static unsigned int
unknown_print_range(char *buffer, const struct ip_nat_range *range)
{
return 0;
}
struct ip_nat_protocol ip_nat_unknown_protocol = {
.name = "unknown",
.me = THIS_MODULE,
.manip_pkt = unknown_manip_pkt,
.in_range = unknown_in_range,
.unique_tuple = unknown_unique_tuple,
.print = unknown_print,
.print_range = unknown_print_range
};
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