| /* (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/jiffies.h> |
| #include <linux/timer.h> |
| #include <linux/netfilter.h> |
| #include <net/netfilter/nf_conntrack_l4proto.h> |
| |
| static unsigned int nf_ct_generic_timeout __read_mostly = 600*HZ; |
| |
| static bool generic_pkt_to_tuple(const struct sk_buff *skb, |
| unsigned int dataoff, |
| struct nf_conntrack_tuple *tuple) |
| { |
| tuple->src.u.all = 0; |
| tuple->dst.u.all = 0; |
| |
| return true; |
| } |
| |
| static bool generic_invert_tuple(struct nf_conntrack_tuple *tuple, |
| const struct nf_conntrack_tuple *orig) |
| { |
| tuple->src.u.all = 0; |
| tuple->dst.u.all = 0; |
| |
| return true; |
| } |
| |
| /* Print out the per-protocol part of the tuple. */ |
| static int generic_print_tuple(struct seq_file *s, |
| const struct nf_conntrack_tuple *tuple) |
| { |
| return 0; |
| } |
| |
| /* Returns verdict for packet, or -1 for invalid. */ |
| static int packet(struct nf_conn *ct, |
| const struct sk_buff *skb, |
| unsigned int dataoff, |
| enum ip_conntrack_info ctinfo, |
| u_int8_t pf, |
| unsigned int hooknum) |
| { |
| nf_ct_refresh_acct(ct, ctinfo, skb, nf_ct_generic_timeout); |
| return NF_ACCEPT; |
| } |
| |
| /* Called when a new connection for this protocol found. */ |
| static bool new(struct nf_conn *ct, const struct sk_buff *skb, |
| unsigned int dataoff) |
| { |
| return true; |
| } |
| |
| #ifdef CONFIG_SYSCTL |
| static struct ctl_table_header *generic_sysctl_header; |
| static struct ctl_table generic_sysctl_table[] = { |
| { |
| .procname = "nf_conntrack_generic_timeout", |
| .data = &nf_ct_generic_timeout, |
| .maxlen = sizeof(unsigned int), |
| .mode = 0644, |
| .proc_handler = proc_dointvec_jiffies, |
| }, |
| { } |
| }; |
| #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT |
| static struct ctl_table generic_compat_sysctl_table[] = { |
| { |
| .procname = "ip_conntrack_generic_timeout", |
| .data = &nf_ct_generic_timeout, |
| .maxlen = sizeof(unsigned int), |
| .mode = 0644, |
| .proc_handler = proc_dointvec_jiffies, |
| }, |
| { } |
| }; |
| #endif /* CONFIG_NF_CONNTRACK_PROC_COMPAT */ |
| #endif /* CONFIG_SYSCTL */ |
| |
| struct nf_conntrack_l4proto nf_conntrack_l4proto_generic __read_mostly = |
| { |
| .l3proto = PF_UNSPEC, |
| .l4proto = 255, |
| .name = "unknown", |
| .pkt_to_tuple = generic_pkt_to_tuple, |
| .invert_tuple = generic_invert_tuple, |
| .print_tuple = generic_print_tuple, |
| .packet = packet, |
| .new = new, |
| #ifdef CONFIG_SYSCTL |
| .ctl_table_header = &generic_sysctl_header, |
| .ctl_table = generic_sysctl_table, |
| #ifdef CONFIG_NF_CONNTRACK_PROC_COMPAT |
| .ctl_compat_table = generic_compat_sysctl_table, |
| #endif |
| #endif |
| }; |