/* * net/sched/sch_blackhole.c Black hole queue * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License * as published by the Free Software Foundation; either version * 2 of the License, or (at your option) any later version. * * Authors: Thomas Graf <tgraf@suug.ch> * * Note: Quantum tunneling is not supported. */ #include <linux/config.h> #include <linux/module.h> #include <linux/types.h> #include <linux/kernel.h> #include <linux/netdevice.h> #include <linux/skbuff.h> #include <net/pkt_sched.h> static int blackhole_enqueue(struct sk_buff *skb, struct Qdisc *sch) { qdisc_drop(skb, sch); return NET_XMIT_SUCCESS; } static struct sk_buff *blackhole_dequeue(struct Qdisc *sch) { return NULL; } static struct Qdisc_ops blackhole_qdisc_ops = { .id = "blackhole", .priv_size = 0, .enqueue = blackhole_enqueue, .dequeue = blackhole_dequeue, .owner = THIS_MODULE, }; static int __init blackhole_module_init(void) { return register_qdisc(&blackhole_qdisc_ops); } static void __exit blackhole_module_exit(void) { unregister_qdisc(&blackhole_qdisc_ops); } module_init(blackhole_module_init) module_exit(blackhole_module_exit) MODULE_LICENSE("GPL");