diff options
Diffstat (limited to 'net/sched/sch_blackhole.c')
| -rw-r--r-- | net/sched/sch_blackhole.c | 45 |
1 files changed, 45 insertions, 0 deletions
diff --git a/net/sched/sch_blackhole.c b/net/sched/sch_blackhole.c new file mode 100644 index 000000000..9c4c2bb54 --- /dev/null +++ b/net/sched/sch_blackhole.c @@ -0,0 +1,45 @@ +/* + * 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/init.h> +#include <linux/types.h> +#include <linux/kernel.h> +#include <linux/skbuff.h> +#include <net/pkt_sched.h> + +static int blackhole_enqueue(struct sk_buff *skb, struct Qdisc *sch, + struct sk_buff **to_free) +{ + qdisc_drop(skb, sch, to_free); + return NET_XMIT_SUCCESS | __NET_XMIT_BYPASS; +} + +static struct sk_buff *blackhole_dequeue(struct Qdisc *sch) +{ + return NULL; +} + +static struct Qdisc_ops blackhole_qdisc_ops __read_mostly = { + .id = "blackhole", + .priv_size = 0, + .enqueue = blackhole_enqueue, + .dequeue = blackhole_dequeue, + .peek = blackhole_dequeue, + .owner = THIS_MODULE, +}; + +static int __init blackhole_init(void) +{ + return register_qdisc(&blackhole_qdisc_ops); +} +device_initcall(blackhole_init) |