Jozsef Kadlecsik | ba9dda3 | 2007-07-07 22:21:23 -0700 | [diff] [blame] | 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_LICENSE("GPL"); |
| 9 | MODULE_ALIAS("ipt_TRACE"); |
| 10 | MODULE_ALIAS("ip6t_TRACE"); |
| 11 | |
| 12 | static unsigned int |
| 13 | target(struct sk_buff **pskb, |
| 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 | (*pskb)->nf_trace = 1; |
| 21 | return XT_CONTINUE; |
| 22 | } |
| 23 | |
Patrick McHardy | 9f15c53 | 2007-07-07 22:22:02 -0700 | [diff] [blame] | 24 | static struct xt_target xt_trace_target[] __read_mostly = { |
Jozsef Kadlecsik | ba9dda3 | 2007-07-07 22:21:23 -0700 | [diff] [blame] | 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 | |
| 41 | static int __init xt_trace_init(void) |
| 42 | { |
| 43 | return xt_register_targets(xt_trace_target, |
| 44 | ARRAY_SIZE(xt_trace_target)); |
| 45 | } |
| 46 | |
| 47 | static void __exit xt_trace_fini(void) |
| 48 | { |
| 49 | xt_unregister_targets(xt_trace_target, ARRAY_SIZE(xt_trace_target)); |
| 50 | } |
| 51 | |
| 52 | module_init(xt_trace_init); |
| 53 | module_exit(xt_trace_fini); |