2 * net/sched/sch_blackhole.c Black hole queue
4 * This program is free software; you can redistribute it and/or
5 * modify it under the terms of the GNU General Public License
6 * as published by the Free Software Foundation; either version
7 * 2 of the License, or (at your option) any later version.
9 * Authors: Thomas Graf <tgraf@suug.ch>
11 * Note: Quantum tunneling is not supported.
14 #include <linux/config.h>
15 #include <linux/module.h>
16 #include <linux/types.h>
17 #include <linux/kernel.h>
18 #include <linux/netdevice.h>
19 #include <linux/skbuff.h>
20 #include <net/pkt_sched.h>
22 static int blackhole_enqueue(struct sk_buff *skb, struct Qdisc *sch)
25 return NET_XMIT_SUCCESS;
28 static struct sk_buff *blackhole_dequeue(struct Qdisc *sch)
33 static struct Qdisc_ops blackhole_qdisc_ops = {
36 .enqueue = blackhole_enqueue,
37 .dequeue = blackhole_dequeue,
41 static int __init blackhole_module_init(void)
43 return register_qdisc(&blackhole_qdisc_ops);
46 static void __exit blackhole_module_exit(void)
48 unregister_qdisc(&blackhole_qdisc_ops);
51 module_init(blackhole_module_init)
52 module_exit(blackhole_module_exit)
54 MODULE_LICENSE("GPL");