forked from luck/tmp_suning_uos_patched
108 lines
2.6 KiB
C
108 lines
2.6 KiB
C
|
/*
|
||
|
|
* 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 <asm/uaccess.h>
|
||
|
|
#include <asm/system.h>
|
||
|
|
#include <asm/bitops.h>
|
||
|
|
#include <linux/config.h>
|
||
|
|
#include <linux/types.h>
|
||
|
|
#include <linux/kernel.h>
|
||
|
|
#include <linux/sched.h>
|
||
|
|
#include <linux/string.h>
|
||
|
|
#include <linux/mm.h>
|
||
|
|
#include <linux/socket.h>
|
||
|
|
#include <linux/sockios.h>
|
||
|
|
#include <linux/in.h>
|
||
|
|
#include <linux/errno.h>
|
||
|
|
#include <linux/interrupt.h>
|
||
|
|
#include <linux/netdevice.h>
|
||
|
|
#include <linux/skbuff.h>
|
||
|
|
#include <linux/rtnetlink.h>
|
||
|
|
#include <linux/module.h>
|
||
|
|
#include <linux/init.h>
|
||
|
|
#include <linux/proc_fs.h>
|
||
|
|
#include <net/sock.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 **pskb, struct tc_action *a)
|
||
|
|
{
|
||
|
|
struct sk_buff *skb = *pskb;
|
||
|
|
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);
|