tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * net/sched/sch_blackhole.c Black hole queue
3 *
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.
8 *
9 * Authors: Thomas Graf <tgraf@suug.ch>
10 *
11 * Note: Quantum tunneling is not supported.
12 */
13
14#include <linux/init.h>
15#include <linux/types.h>
16#include <linux/kernel.h>
17#include <linux/skbuff.h>
18#include <net/pkt_sched.h>
19
20static int blackhole_enqueue(struct sk_buff *skb, struct Qdisc *sch,
21 struct sk_buff **to_free)
22{
23 qdisc_drop(skb, sch, to_free);
24 return NET_XMIT_SUCCESS | __NET_XMIT_BYPASS;
25}
26
27static struct sk_buff *blackhole_dequeue(struct Qdisc *sch)
28{
29 return NULL;
30}
31
32static struct Qdisc_ops blackhole_qdisc_ops __read_mostly = {
33 .id = "blackhole",
34 .priv_size = 0,
35 .enqueue = blackhole_enqueue,
36 .dequeue = blackhole_dequeue,
37 .peek = blackhole_dequeue,
38 .owner = THIS_MODULE,
39};
40
41static int __init blackhole_init(void)
42{
43 return register_qdisc(&blackhole_qdisc_ops);
44}
45device_initcall(blackhole_init)