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
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
|
/* SPDX-License-Identifier: GPL-2.0-only
*
* iptables helper for NETFLOW target
* <abc@telekom.ru>
*
*
* This file is part of NetFlow exporting module.
*
* This program is free software: you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation, either version 2 of the License, or
* (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program. If not, see <http://www.gnu.org/licenses/>.
*
*/
#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <getopt.h>
#include <net/if.h>
#include <sys/socket.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#define __EXPORTED_HEADERS__
#ifdef XTABLES
#include <xtables.h>
#else
#include <iptables.h>
#endif
#ifdef XTABLES_VERSION_CODE // since 1.4.1
#define MOD140
#define iptables_target xtables_target
#endif
#ifdef iptables_target // only in 1.4.0
#define MOD140
#endif
#ifdef MOD140
#define ipt_entry_target xt_entry_target
#define register_target xtables_register_target
#define _IPT_ENTRY void
#define _IPT_IP void
#ifndef IPT_ALIGN
#define IPT_ALIGN XT_ALIGN
#endif
#else // before 1.3.x
#define _IPT_ENTRY struct ipt_entry
#define _IPT_IP struct ipt_ip
#endif
#ifndef IPTABLES_VERSION
#define IPTABLES_VERSION XTABLES_VERSION
#endif
static struct option opts[] = {
{ 0 }
};
static void help(void)
{
printf("NETFLOW target\n");
}
static int parse(int c, char **argv, int invert, unsigned int *flags,
const _IPT_ENTRY *entry,
struct ipt_entry_target **targetinfo)
{
return 1;
}
static void final_check(unsigned int flags)
{
}
static void save(const _IPT_IP *ip, const struct ipt_entry_target *match)
{
}
static void print(const _IPT_IP *ip,
const struct ipt_entry_target *target,
int numeric)
{
printf("NETFLOW ");
}
static struct iptables_target netflow = {
.next = NULL,
.name = "NETFLOW",
.version = IPTABLES_VERSION,
.size = IPT_ALIGN(0),
.userspacesize = IPT_ALIGN(0),
.help = &help,
.parse = &parse,
.final_check = &final_check,
.print = &print,
.save = &save,
.extra_opts = opts
};
#ifndef _init
#define _init __attribute__((constructor)) _INIT
#endif
void _init(void)
{
register_target(&netflow);
}
|
