projects / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 63d886c9 TG |
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 <[email protected]> | |
| 10 | * | |
| 11 | * Note: Quantum tunneling is not supported. | |
| 12 | */ | |
| 13 | ||
| 63d886c9 TG |
14 | #include <linux/module.h> |
| 15 | #include <linux/types.h> | |
| 16 | #include <linux/kernel.h> | |
| 63d886c9 TG |
17 | #include <linux/skbuff.h> |
| 18 | #include <net/pkt_sched.h> | |
| 19 | ||
| 20 | static int blackhole_enqueue(struct sk_buff *skb, struct Qdisc *sch) | |
| 21 | { | |
| 22 | qdisc_drop(skb, sch); | |
| 23 | return NET_XMIT_SUCCESS; | |
| 24 | } | |
| 25 | ||
| 26 | static struct sk_buff *blackhole_dequeue(struct Qdisc *sch) | |
| 27 | { | |
| 28 | return NULL; | |
| 29 | } | |
| 30 | ||
| 20fea08b | 31 | static struct Qdisc_ops blackhole_qdisc_ops __read_mostly = { |
| 63d886c9 TG |
32 | .id = "blackhole", |
| 33 | .priv_size = 0, | |
| 34 | .enqueue = blackhole_enqueue, | |
| 35 | .dequeue = blackhole_dequeue, | |
| 8e3af978 | 36 | .peek = blackhole_dequeue, |
| 63d886c9 TG |
37 | .owner = THIS_MODULE, |
| 38 | }; | |
| 39 | ||
| 40 | static int __init blackhole_module_init(void) | |
| 41 | { | |
| 42 | return register_qdisc(&blackhole_qdisc_ops); | |
| 43 | } | |
| 44 | ||
| 45 | static void __exit blackhole_module_exit(void) | |
| 46 | { | |
| 47 | unregister_qdisc(&blackhole_qdisc_ops); | |
| 48 | } | |
| 49 | ||
| 50 | module_init(blackhole_module_init) | |
| 51 | module_exit(blackhole_module_exit) | |
| 52 | ||
| 53 | MODULE_LICENSE("GPL"); |