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5b1158e9 JK |
1 | /* The "unknown" protocol. This is what is used for protocols we |
2 | * don't understand. It's returned by ip_ct_find_proto(). | |
3 | */ | |
4 | ||
5 | /* (C) 1999-2001 Paul `Rusty' Russell | |
6 | * (C) 2002-2006 Netfilter Core Team <coreteam@netfilter.org> | |
7 | * | |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License version 2 as | |
10 | * published by the Free Software Foundation. | |
11 | */ | |
12 | ||
13 | #include <linux/types.h> | |
14 | #include <linux/init.h> | |
15 | ||
16 | #include <linux/netfilter.h> | |
17 | #include <net/netfilter/nf_nat.h> | |
c7232c99 | 18 | #include <net/netfilter/nf_nat_l4proto.h> |
5b1158e9 | 19 | |
f2ea825f JE |
20 | static bool unknown_in_range(const struct nf_conntrack_tuple *tuple, |
21 | enum nf_nat_manip_type manip_type, | |
22 | const union nf_conntrack_man_proto *min, | |
23 | const union nf_conntrack_man_proto *max) | |
5b1158e9 | 24 | { |
f2ea825f | 25 | return true; |
5b1158e9 JK |
26 | } |
27 | ||
c7232c99 PM |
28 | static void unknown_unique_tuple(const struct nf_nat_l3proto *l3proto, |
29 | struct nf_conntrack_tuple *tuple, | |
30 | const struct nf_nat_range *range, | |
f2ea825f JE |
31 | enum nf_nat_manip_type maniptype, |
32 | const struct nf_conn *ct) | |
5b1158e9 JK |
33 | { |
34 | /* Sorry: we can't help you; if it's not unique, we can't frob | |
c7232c99 PM |
35 | * anything. |
36 | */ | |
f43dc98b | 37 | return; |
5b1158e9 JK |
38 | } |
39 | ||
f2ea825f | 40 | static bool |
3db05fea | 41 | unknown_manip_pkt(struct sk_buff *skb, |
c7232c99 PM |
42 | const struct nf_nat_l3proto *l3proto, |
43 | unsigned int iphdroff, unsigned int hdroff, | |
5b1158e9 JK |
44 | const struct nf_conntrack_tuple *tuple, |
45 | enum nf_nat_manip_type maniptype) | |
46 | { | |
f2ea825f | 47 | return true; |
5b1158e9 JK |
48 | } |
49 | ||
c7232c99 | 50 | const struct nf_nat_l4proto nf_nat_l4proto_unknown = { |
5b1158e9 JK |
51 | .manip_pkt = unknown_manip_pkt, |
52 | .in_range = unknown_in_range, | |
53 | .unique_tuple = unknown_unique_tuple, | |
54 | }; |