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/* 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 *skb,
const struct net_device *in,
const struct net_device *out,
unsigned int hooknum,
const struct xt_target *target,
const void *targinfo)
{
skb->nf_trace = 1;
return XT_CONTINUE;
}
static struct xt_target xt_trace_target[] __read_mostly = {
{
.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);
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