Commit | Line | Data |
---|---|---|
9fb9cbb1 YK |
1 | /* (C) 1999-2001 Paul `Rusty' Russell |
2 | * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org> | |
3 | * | |
4 | * This program is free software; you can redistribute it and/or modify | |
5 | * it under the terms of the GNU General Public License version 2 as | |
6 | * published by the Free Software Foundation. | |
9fb9cbb1 YK |
7 | */ |
8 | ||
9 | #include <linux/types.h> | |
cd354f1a | 10 | #include <linux/jiffies.h> |
9fb9cbb1 YK |
11 | #include <linux/timer.h> |
12 | #include <linux/netfilter.h> | |
605dcad6 | 13 | #include <net/netfilter/nf_conntrack_l4proto.h> |
9fb9cbb1 | 14 | |
933a41e7 | 15 | static unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ; |
9fb9cbb1 YK |
16 | |
17 | static int generic_pkt_to_tuple(const struct sk_buff *skb, | |
18 | unsigned int dataoff, | |
19 | struct nf_conntrack_tuple *tuple) | |
20 | { | |
21 | tuple->src.u.all = 0; | |
22 | tuple->dst.u.all = 0; | |
23 | ||
24 | return 1; | |
25 | } | |
26 | ||
27 | static int generic_invert_tuple(struct nf_conntrack_tuple *tuple, | |
28 | const struct nf_conntrack_tuple *orig) | |
29 | { | |
30 | tuple->src.u.all = 0; | |
31 | tuple->dst.u.all = 0; | |
32 | ||
33 | return 1; | |
34 | } | |
35 | ||
36 | /* Print out the per-protocol part of the tuple. */ | |
37 | static int generic_print_tuple(struct seq_file *s, | |
38 | const struct nf_conntrack_tuple *tuple) | |
39 | { | |
40 | return 0; | |
41 | } | |
42 | ||
43 | /* Print out the private part of the conntrack. */ | |
44 | static int generic_print_conntrack(struct seq_file *s, | |
45 | const struct nf_conn *state) | |
46 | { | |
47 | return 0; | |
48 | } | |
49 | ||
50 | /* Returns verdict for packet, or -1 for invalid. */ | |
51 | static int packet(struct nf_conn *conntrack, | |
52 | const struct sk_buff *skb, | |
53 | unsigned int dataoff, | |
54 | enum ip_conntrack_info ctinfo, | |
55 | int pf, | |
56 | unsigned int hooknum) | |
57 | { | |
58 | nf_ct_refresh_acct(conntrack, ctinfo, skb, nf_ct_generic_timeout); | |
59 | return NF_ACCEPT; | |
60 | } | |
61 | ||
62 | /* Called when a new connection for this protocol found. */ | |
63 | static int new(struct nf_conn *conntrack, const struct sk_buff *skb, | |
64 | unsigned int dataoff) | |
65 | { | |
66 | return 1; | |
67 | } | |
68 | ||
933a41e7 PM |
69 | #ifdef CONFIG_SYSCTL |
70 | static struct ctl_table_header *generic_sysctl_header; | |
71 | static struct ctl_table generic_sysctl_table[] = { | |
72 | { | |
73 | .ctl_name = NET_NF_CONNTRACK_GENERIC_TIMEOUT, | |
74 | .procname = "nf_conntrack_generic_timeout", | |
75 | .data = &nf_ct_generic_timeout, | |
76 | .maxlen = sizeof(unsigned int), | |
77 | .mode = 0644, | |
78 | .proc_handler = &proc_dointvec_jiffies, | |
79 | }, | |
80 | { | |
81 | .ctl_name = 0 | |
82 | } | |
83 | }; | |
a999e683 PM |
84 | #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT |
85 | static struct ctl_table generic_compat_sysctl_table[] = { | |
86 | { | |
87 | .ctl_name = NET_IPV4_NF_CONNTRACK_GENERIC_TIMEOUT, | |
88 | .procname = "ip_conntrack_generic_timeout", | |
89 | .data = &nf_ct_generic_timeout, | |
90 | .maxlen = sizeof(unsigned int), | |
91 | .mode = 0644, | |
92 | .proc_handler = &proc_dointvec_jiffies, | |
93 | }, | |
94 | { | |
95 | .ctl_name = 0 | |
96 | } | |
97 | }; | |
98 | #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ | |
933a41e7 PM |
99 | #endif /* CONFIG_SYSCTL */ |
100 | ||
605dcad6 | 101 | struct nf_conntrack_l4proto nf_conntrack_l4proto_generic = |
9fb9cbb1 YK |
102 | { |
103 | .l3proto = PF_UNSPEC, | |
605dcad6 | 104 | .l4proto = 0, |
9fb9cbb1 YK |
105 | .name = "unknown", |
106 | .pkt_to_tuple = generic_pkt_to_tuple, | |
107 | .invert_tuple = generic_invert_tuple, | |
108 | .print_tuple = generic_print_tuple, | |
109 | .print_conntrack = generic_print_conntrack, | |
110 | .packet = packet, | |
111 | .new = new, | |
933a41e7 PM |
112 | #ifdef CONFIG_SYSCTL |
113 | .ctl_table_header = &generic_sysctl_header, | |
114 | .ctl_table = generic_sysctl_table, | |
a999e683 PM |
115 | #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT |
116 | .ctl_compat_table = generic_compat_sysctl_table, | |
117 | #endif | |
933a41e7 | 118 | #endif |
9fb9cbb1 | 119 | }; |