tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
8MODULE_LICENSE("GPL");
9MODULE_ALIAS("ipt_TRACE");
10MODULE_ALIAS("ip6t_TRACE");
11
12static unsigned int
13target(struct sk_buff *skb,
14 const struct net_device *in,
15 const struct net_device *out,
16 unsigned int hooknum,
17 const struct xt_target *target,
18 const void *targinfo)
19{
20 skb->nf_trace = 1;
21 return XT_CONTINUE;
22}
23
24static struct xt_target xt_trace_target[] __read_mostly = {
25 {
26 .name = "TRACE",
27 .family = AF_INET,
28 .target = target,
29 .table = "raw",
30 .me = THIS_MODULE,
31 },
32 {
33 .name = "TRACE",
34 .family = AF_INET6,
35 .target = target,
36 .table = "raw",
37 .me = THIS_MODULE,
38 },
39};
40
41static int __init xt_trace_init(void)
42{
43 return xt_register_targets(xt_trace_target,
44 ARRAY_SIZE(xt_trace_target));
45}
46
47static void __exit xt_trace_fini(void)
48{
49 xt_unregister_targets(xt_trace_target, ARRAY_SIZE(xt_trace_target));
50}
51
52module_init(xt_trace_init);
53module_exit(xt_trace_fini);