1 /* This is a module which is used to mark packets for tracing.
2 */
3 #include <linux/module.h>
4 #include <linux/skbuff.h>
5
6 #include <linux/netfilter/x_tables.h>
7
8 MODULE_DESCRIPTION("Xtables: packet flow tracing");
9 MODULE_LICENSE("GPL");
10 MODULE_ALIAS("ipt_TRACE");
11 MODULE_ALIAS("ip6t_TRACE");
12
13 static unsigned int
14 trace_tg(struct sk_buff *skb, const struct xt_target_param *par)
15 {
16 skb->nf_trace = 1;
17 return XT_CONTINUE;
18 }
19
20 static struct xt_target trace_tg_reg __read_mostly = {
21 .name = "TRACE",
22 .revision = 0,
23 .family = NFPROTO_UNSPEC,
24 .table = "raw",
25 .target = trace_tg,
26 .me = THIS_MODULE,
27 };
28
29 static int __init trace_tg_init(void)
30 {
31 return xt_register_target(&trace_tg_reg);
32 }
33
34 static void __exit trace_tg_exit(void)
35 {
36 xt_unregister_target(&trace_tg_reg);
37 }
38
39 module_init(trace_tg_init);
40 module_exit(trace_tg_exit);
41
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