Add the rt linux 4.1.3-rt3 as base

[kvmfornfv.git] / kernel / net / netfilter / xt_TRACE.c

diff --git a/kernel/net/netfilter/xt_TRACE.c b/kernel/net/netfilter/xt_TRACE.c
new file mode 100644 (file)
index 0000000..df48967
--- /dev/null
+++ b/kernel/net/netfilter/xt_TRACE.c
@@ -0,0 +1,40 @@
+/* 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_DESCRIPTION("Xtables: packet flow tracing");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS("ipt_TRACE");
+MODULE_ALIAS("ip6t_TRACE");
+
+static unsigned int
+trace_tg(struct sk_buff *skb, const struct xt_action_param *par)
+{
+       skb->nf_trace = 1;
+       return XT_CONTINUE;
+}
+
+static struct xt_target trace_tg_reg __read_mostly = {
+       .name       = "TRACE",
+       .revision   = 0,
+       .family     = NFPROTO_UNSPEC,
+       .table      = "raw",
+       .target     = trace_tg,
+       .me         = THIS_MODULE,
+};
+
+static int __init trace_tg_init(void)
+{
+       return xt_register_target(&trace_tg_reg);
+}
+
+static void __exit trace_tg_exit(void)
+{
+       xt_unregister_target(&trace_tg_reg);
+}
+
+module_init(trace_tg_init);
+module_exit(trace_tg_exit);