[PKT_SCHED]: Blackhole queueing discipline

obj-y	:= sch_generic.o

obj-$(CONFIG_NET_SCHED)		+= sch_api.o sch_fifo.o

obj-$(CONFIG_NET_SCHED)		+= sch_api.o sch_fifo.o sch_blackhole.o

obj-$(CONFIG_NET_CLS)		+= cls_api.o

obj-$(CONFIG_NET_CLS_ACT)	+= act_api.o

obj-$(CONFIG_NET_ACT_POLICE)	+= police.o

/*

 * 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");