Remove obsolete #include <linux/config.h>
[linux-2.6.git] / net / netfilter / nf_conntrack_l3proto_generic.c
1 /*
2  * (C) 2003,2004 USAGI/WIDE Project <http://www.linux-ipv6.org>
3  *
4  * Based largely upon the original ip_conntrack code which
5  * had the following copyright information:
6  *
7  * (C) 1999-2001 Paul `Rusty' Russell
8  * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org>
9  *
10  * This program is free software; you can redistribute it and/or modify
11  * it under the terms of the GNU General Public License version 2 as
12  * published by the Free Software Foundation.
13  *
14  * Author:
15  *      Yasuyuki Kozakai @USAGI <yasuyuki.kozakai@toshiba.co.jp>
16  */
17
18 #include <linux/types.h>
19 #include <linux/ip.h>
20 #include <linux/netfilter.h>
21 #include <linux/module.h>
22 #include <linux/skbuff.h>
23 #include <linux/icmp.h>
24 #include <linux/sysctl.h>
25 #include <net/ip.h>
26
27 #include <linux/netfilter_ipv4.h>
28 #include <net/netfilter/nf_conntrack.h>
29 #include <net/netfilter/nf_conntrack_protocol.h>
30 #include <net/netfilter/nf_conntrack_l3proto.h>
31 #include <net/netfilter/nf_conntrack_core.h>
32 #include <net/netfilter/ipv4/nf_conntrack_ipv4.h>
33
34 #if 0
35 #define DEBUGP printk
36 #else
37 #define DEBUGP(format, args...)
38 #endif
39
40 DECLARE_PER_CPU(struct nf_conntrack_stat, nf_conntrack_stat);
41
42 static int generic_pkt_to_tuple(const struct sk_buff *skb, unsigned int nhoff,
43                                 struct nf_conntrack_tuple *tuple)
44 {
45         memset(&tuple->src.u3, 0, sizeof(tuple->src.u3));
46         memset(&tuple->dst.u3, 0, sizeof(tuple->dst.u3));
47
48         return 1;
49 }
50
51 static int generic_invert_tuple(struct nf_conntrack_tuple *tuple,
52                            const struct nf_conntrack_tuple *orig)
53 {
54         memset(&tuple->src.u3, 0, sizeof(tuple->src.u3));
55         memset(&tuple->dst.u3, 0, sizeof(tuple->dst.u3));
56
57         return 1;
58 }
59
60 static int generic_print_tuple(struct seq_file *s,
61                             const struct nf_conntrack_tuple *tuple)
62 {
63         return 0;
64 }
65
66 static int generic_print_conntrack(struct seq_file *s,
67                                 const struct nf_conn *conntrack)
68 {
69         return 0;
70 }
71
72 static int
73 generic_prepare(struct sk_buff **pskb, unsigned int hooknum,
74                 unsigned int *dataoff, u_int8_t *protonum)
75 {
76         /* Never track !!! */
77         return -NF_ACCEPT;
78 }
79
80
81 static u_int32_t generic_get_features(const struct nf_conntrack_tuple *tuple)
82                                 
83 {
84         return NF_CT_F_BASIC;
85 }
86
87 struct nf_conntrack_l3proto nf_conntrack_generic_l3proto = {
88         .l3proto         = PF_UNSPEC,
89         .name            = "unknown",
90         .pkt_to_tuple    = generic_pkt_to_tuple,
91         .invert_tuple    = generic_invert_tuple,
92         .print_tuple     = generic_print_tuple,
93         .print_conntrack = generic_print_conntrack,
94         .prepare         = generic_prepare,
95         .get_features    = generic_get_features,
96 };