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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/module.h> |
15 | #include <linux/types.h> |
16 | #include <linux/kernel.h> |
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 | |
31 | static struct Qdisc_ops blackhole_qdisc_ops __read_mostly = { |
32 | .id = "blackhole", |
33 | .priv_size = 0, |
34 | .enqueue = blackhole_enqueue, |
35 | .dequeue = blackhole_dequeue, |
36 | .peek = blackhole_dequeue, |
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"); |
54 |
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Tags:
od-2011-09-04
od-2011-09-18
v2.6.34-rc5
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