1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
|
/* libctnetlink.h: Header file for the Connection Tracking library.
*
* Jay Schulist <jschlst@samba.org>, Copyright (c) 2001.
* (C) 2002 by Harald Welte <laforge@gnumonks.org>
*
* This software may be used and distributed according to the terms
* of the GNU General Public License, incorporated herein by reference.
*/
#ifndef __LIBCTNETLINK_H
#define __LIBCTNETLINK_H
#include <netinet/in.h>
#include <asm/types.h>
#include <linux/if.h>
#include <linux/netfilter/nfnetlink.h>
#include <linux/netfilter_ipv4/ip_conntrack.h>
#include <linux/netfilter_ipv4/ip_conntrack_netlink.h>
#include "libnfnetlink.h"
#define CTNL_BUFFSIZE 8192
struct ctnl_msg_handler {
int type;
int (*handler)(struct sockaddr_nl *, struct nlmsghdr *, void *arg);
};
struct ctnl_handle {
struct nfnl_handle nfnlh;
struct ctnl_msg_handler *handler[IPCTNL_MSG_COUNT];
};
extern int ctnl_open(struct ctnl_handle *cth, unsigned subscriptions);
extern int ctnl_close(struct ctnl_handle *cth);
extern int ctnl_unregister_handler(struct ctnl_handle *cth, int type);
extern int ctnl_register_handler(struct ctnl_handle *cth,
struct ctnl_msg_handler *hndlr);
extern int ctnl_get_conntrack(struct ctnl_handle *cth,
struct ip_conntrack_tuple *tuple,
enum ctattr_type_t t,
unsigned long id);
extern int ctnl_del_conntrack(struct ctnl_handle *cth,
struct ip_conntrack_tuple *tuple,
enum ctattr_type_t t,
unsigned long id);
extern int ctnl_list_conntrack(struct ctnl_handle *cth, int family);
extern int ctnl_list_expect(struct ctnl_handle *cth, int family);
extern int ctnl_del_expect(struct ctnl_handle *cth,
struct ip_conntrack_tuple *t);
#if 0
extern int ctnl_listen(struct ctnl_handle *ctnl,
int (*handler)(struct sockaddr_nl *, struct nlmsghdr *n, void *),
void *jarg);
extern int ctnl_talk(struct ctnl_handle *ctnl, struct nlmsghdr *n, pid_t peer,
unsigned groups, struct nlmsghdr *answer,
int (*junk)(struct sockaddr_nl *, struct nlmsghdr *n, void *),
void *jarg);
extern int ctnl_dump_request(struct ctnl_handle *cth, int type, void *req,
int len);
extern int ctnl_dump_filter(struct ctnl_handle *cth,
int (*filter)(struct sockaddr_nl *, struct nlmsghdr *n, void *),
void *arg1,
int (*junk)(struct sockaddr_nl *,struct nlmsghdr *n, void *),
void *arg2);
#endif
extern int ctnl_send(struct ctnl_handle *cth, struct nlmsghdr *n);
extern int ctnl_wilddump_request(struct ctnl_handle *cth, int family, int type);
#endif /* __LIBCTNETLINK_H */
|
