1 files changed, 54 insertions, 0 deletions

diff --git a/net/sched/sch_blackhole.c b/net/sched/sch_blackhole.c
new file mode 100644
index 000000000000..81f0b8346d17
--- /dev/null
+++ b/net/sched/sch_blackhole.c
@@ -0,0 +1,54 @@
+/*
+ * 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");