54 lines
1.1 KiB
C
54 lines
1.1 KiB
C
/* This is a module which is used to mark packets for tracing.
|
|
*/
|
|
#include <linux/module.h>
|
|
#include <linux/skbuff.h>
|
|
|
|
#include <linux/netfilter/x_tables.h>
|
|
|
|
MODULE_LICENSE("GPL");
|
|
MODULE_ALIAS("ipt_TRACE");
|
|
MODULE_ALIAS("ip6t_TRACE");
|
|
|
|
static unsigned int
|
|
target(struct sk_buff **pskb,
|
|
const struct net_device *in,
|
|
const struct net_device *out,
|
|
unsigned int hooknum,
|
|
const struct xt_target *target,
|
|
const void *targinfo)
|
|
{
|
|
(*pskb)->nf_trace = 1;
|
|
return XT_CONTINUE;
|
|
}
|
|
|
|
static struct xt_target xt_trace_target[] = {
|
|
{
|
|
.name = "TRACE",
|
|
.family = AF_INET,
|
|
.target = target,
|
|
.table = "raw",
|
|
.me = THIS_MODULE,
|
|
},
|
|
{
|
|
.name = "TRACE",
|
|
.family = AF_INET6,
|
|
.target = target,
|
|
.table = "raw",
|
|
.me = THIS_MODULE,
|
|
},
|
|
};
|
|
|
|
static int __init xt_trace_init(void)
|
|
{
|
|
return xt_register_targets(xt_trace_target,
|
|
ARRAY_SIZE(xt_trace_target));
|
|
}
|
|
|
|
static void __exit xt_trace_fini(void)
|
|
{
|
|
xt_unregister_targets(xt_trace_target, ARRAY_SIZE(xt_trace_target));
|
|
}
|
|
|
|
module_init(xt_trace_init);
|
|
module_exit(xt_trace_fini);
|