1 /* Shared library add-on to iptables to add NOTRACK target support. */
2 #include <stdio.h>
3 #include <string.h>
4 #include <stdlib.h>
5 #include <getopt.h>
6
7 #include <iptables.h>
8 #include <linux/netfilter_ipv4/ip_tables.h>
9
10 /* Function which prints out usage message. */
11 static void
help(void)12 help(void)
13 {
14 printf(
15 "NOTRACK target v%s takes no options\n",
16 IPTABLES_VERSION);
17 }
18
19 static struct option opts[] = {
20 { 0 }
21 };
22
23 /* Initialize the target. */
24 static void
init(struct ipt_entry_target * t,unsigned int * nfcache)25 init(struct ipt_entry_target *t, unsigned int *nfcache)
26 {
27 }
28
29 /* Function which parses command options; returns true if it
30 ate an option */
31 static int
parse(int c,char ** argv,int invert,unsigned int * flags,const struct ipt_entry * entry,struct ipt_entry_target ** target)32 parse(int c, char **argv, int invert, unsigned int *flags,
33 const struct ipt_entry *entry,
34 struct ipt_entry_target **target)
35 {
36 return 0;
37 }
38
39 static void
final_check(unsigned int flags)40 final_check(unsigned int flags)
41 {
42 }
43
44 static
45 struct iptables_target notrack
46 = { .next = NULL,
47 .name = "NOTRACK",
48 .version = IPTABLES_VERSION,
49 .size = IPT_ALIGN(0),
50 .userspacesize = IPT_ALIGN(0),
51 .help = &help,
52 .init = &init,
53 .parse = &parse,
54 .final_check = &final_check,
55 .print = NULL, /* print */
56 .save = NULL, /* save */
57 .extra_opts = opts
58 };
59
ipt_NOTRACK_init(void)60 void ipt_NOTRACK_init(void)
61 {
62 register_target(¬rack);
63 }
64