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File: [Development] / linux-2.6-xfs / include / net / netfilter / nf_nat_helper.h (download)

Revision 1.3, Mon Aug 4 17:03:13 2008 UTC (9 years, 2 months ago) by lachlan.longdrop.melbourne.sgi.com
Branch: MAIN
CVS Tags: HEAD
Changes since 1.2: +3 -0 lines 

Merge up to 2.6.26
Merge of 2.6.x-xfs-melb:linux:31804b by kenmcd.

#ifndef _NF_NAT_HELPER_H
#define _NF_NAT_HELPER_H
/* NAT protocol helper routines. */

#include <net/netfilter/nf_conntrack.h>

struct sk_buff;

/* These return true or false. */
extern int nf_nat_mangle_tcp_packet(struct sk_buff *skb,
				    struct nf_conn *ct,
				    enum ip_conntrack_info ctinfo,
				    unsigned int match_offset,
				    unsigned int match_len,
				    const char *rep_buffer,
				    unsigned int rep_len);
extern int nf_nat_mangle_udp_packet(struct sk_buff *skb,
				    struct nf_conn *ct,
				    enum ip_conntrack_info ctinfo,
				    unsigned int match_offset,
				    unsigned int match_len,
				    const char *rep_buffer,
				    unsigned int rep_len);
extern int nf_nat_seq_adjust(struct sk_buff *skb,
			     struct nf_conn *ct,
			     enum ip_conntrack_info ctinfo);
extern int (*nf_nat_seq_adjust_hook)(struct sk_buff *skb,
				     struct nf_conn *ct,
				     enum ip_conntrack_info ctinfo);

/* Setup NAT on this expected conntrack so it follows master, but goes
 * to port ct->master->saved_proto. */
extern void nf_nat_follow_master(struct nf_conn *ct,
				 struct nf_conntrack_expect *this);
#endif