| /* 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 |
| }; |