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