This commit was manufactured by cvs2svn to create branch 'vserver'.

[linux-2.6.git] / net / sched / act_simple.c

diff --git a/net/sched/act_simple.c b/net/sched/act_simple.c
new file mode 100644 (file)
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+++ b/net/sched/act_simple.c
@@ -0,0 +1,92 @@
+/*
+ * net/sched/simp.c    Simple example of an action
+ *
+ *             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:    Jamal Hadi Salim (2005)
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/module.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/netdevice.h>
+#include <linux/skbuff.h>
+#include <linux/rtnetlink.h>
+#include <net/pkt_sched.h>
+
+#define TCA_ACT_SIMP 22
+
+/* XXX: Hide all these common elements under some macro 
+ * probably
+*/
+#include <linux/tc_act/tc_defact.h>
+#include <net/tc_act/tc_defact.h>
+
+/* use generic hash table with 8 buckets */
+#define MY_TAB_SIZE     8
+#define MY_TAB_MASK     (MY_TAB_SIZE - 1)
+static u32 idx_gen;
+static struct tcf_defact *tcf_simp_ht[MY_TAB_SIZE];
+static DEFINE_RWLOCK(simp_lock);
+
+/* override the defaults */
+#define tcf_st         tcf_defact
+#define tc_st          tc_defact
+#define tcf_t_lock     simp_lock
+#define tcf_ht         tcf_simp_ht
+
+#define CONFIG_NET_ACT_INIT 1
+#include <net/pkt_act.h>
+#include <net/act_generic.h>
+
+static int tcf_simp(struct sk_buff *skb, struct tc_action *a, struct tcf_result *res)
+{
+       struct tcf_defact *p = PRIV(a, defact);
+
+       spin_lock(&p->lock);
+       p->tm.lastuse = jiffies;
+       p->bstats.bytes += skb->len;
+       p->bstats.packets++;
+
+       /* print policy string followed by _ then packet count 
+        * Example if this was the 3rd packet and the string was "hello" 
+        * then it would look like "hello_3" (without quotes) 
+        **/
+       printk("simple: %s_%d\n", (char *)p->defdata, p->bstats.packets);
+       spin_unlock(&p->lock);
+       return p->action;
+}
+
+static struct tc_action_ops act_simp_ops = {
+       .kind = "simple",
+       .type = TCA_ACT_SIMP,
+       .capab = TCA_CAP_NONE,
+       .owner = THIS_MODULE,
+       .act = tcf_simp,
+       tca_use_default_ops
+};
+
+MODULE_AUTHOR("Jamal Hadi Salim(2005)");
+MODULE_DESCRIPTION("Simple example action");
+MODULE_LICENSE("GPL");
+
+static int __init simp_init_module(void)
+{
+       int ret = tcf_register_action(&act_simp_ops);
+       if (!ret)
+               printk("Simple TC action Loaded\n");
+       return ret;
+}
+
+static void __exit simp_cleanup_module(void)
+{
+       tcf_unregister_action(&act_simp_ops);
+}
+
+module_init(simp_init_module);
+module_exit(simp_cleanup_module);