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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 | 16 | |
09f263cd JE |
17 | static bool generic_pkt_to_tuple(const struct sk_buff *skb, |
18 | unsigned int dataoff, | |
19 | struct nf_conntrack_tuple *tuple) | |
9fb9cbb1 YK |
20 | { |
21 | tuple->src.u.all = 0; | |
22 | tuple->dst.u.all = 0; | |
23 | ||
09f263cd | 24 | return true; |
9fb9cbb1 YK |
25 | } |
26 | ||
09f263cd JE |
27 | static bool generic_invert_tuple(struct nf_conntrack_tuple *tuple, |
28 | const struct nf_conntrack_tuple *orig) | |
9fb9cbb1 YK |
29 | { |
30 | tuple->src.u.all = 0; | |
31 | tuple->dst.u.all = 0; | |
32 | ||
09f263cd | 33 | return true; |
9fb9cbb1 YK |
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 | ||
9fb9cbb1 | 43 | /* Returns verdict for packet, or -1 for invalid. */ |
c88130bc | 44 | static int packet(struct nf_conn *ct, |
9fb9cbb1 YK |
45 | const struct sk_buff *skb, |
46 | unsigned int dataoff, | |
47 | enum ip_conntrack_info ctinfo, | |
48 | int pf, | |
49 | unsigned int hooknum) | |
50 | { | |
c88130bc | 51 | nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_generic_timeout); |
9fb9cbb1 YK |
52 | return NF_ACCEPT; |
53 | } | |
54 | ||
55 | /* Called when a new connection for this protocol found. */ | |
09f263cd JE |
56 | static bool new(struct nf_conn *ct, const struct sk_buff *skb, |
57 | unsigned int dataoff) | |
9fb9cbb1 | 58 | { |
09f263cd | 59 | return true; |
9fb9cbb1 YK |
60 | } |
61 | ||
933a41e7 PM |
62 | #ifdef CONFIG_SYSCTL |
63 | static struct ctl_table_header *generic_sysctl_header; | |
64 | static struct ctl_table generic_sysctl_table[] = { | |
65 | { | |
933a41e7 PM |
66 | .procname = "nf_conntrack_generic_timeout", |
67 | .data = &nf_ct_generic_timeout, | |
68 | .maxlen = sizeof(unsigned int), | |
69 | .mode = 0644, | |
70 | .proc_handler = &proc_dointvec_jiffies, | |
71 | }, | |
72 | { | |
73 | .ctl_name = 0 | |
74 | } | |
75 | }; | |
a999e683 PM |
76 | #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT |
77 | static struct ctl_table generic_compat_sysctl_table[] = { | |
78 | { | |
a999e683 PM |
79 | .procname = "ip_conntrack_generic_timeout", |
80 | .data = &nf_ct_generic_timeout, | |
81 | .maxlen = sizeof(unsigned int), | |
82 | .mode = 0644, | |
83 | .proc_handler = &proc_dointvec_jiffies, | |
84 | }, | |
85 | { | |
86 | .ctl_name = 0 | |
87 | } | |
88 | }; | |
89 | #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ | |
933a41e7 PM |
90 | #endif /* CONFIG_SYSCTL */ |
91 | ||
61075af5 | 92 | struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly = |
9fb9cbb1 YK |
93 | { |
94 | .l3proto = PF_UNSPEC, | |
605dcad6 | 95 | .l4proto = 0, |
9fb9cbb1 YK |
96 | .name = "unknown", |
97 | .pkt_to_tuple = generic_pkt_to_tuple, | |
98 | .invert_tuple = generic_invert_tuple, | |
99 | .print_tuple = generic_print_tuple, | |
9fb9cbb1 YK |
100 | .packet = packet, |
101 | .new = new, | |
933a41e7 PM |
102 | #ifdef CONFIG_SYSCTL |
103 | .ctl_table_header = &generic_sysctl_header, | |
104 | .ctl_table = generic_sysctl_table, | |
a999e683 PM |
105 | #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT |
106 | .ctl_compat_table = generic_compat_sysctl_table, | |
107 | #endif | |
933a41e7 | 108 | #endif |
9fb9cbb1 | 109 | }; |