[deliverable/linux.git] / net / netfilter / xt_CLASSIFY.c

/*
 * This is a module which is used for setting the skb->priority field
 * of an skb for qdisc classification.
 */

/* (C) 2001-2002 Patrick McHardy <kaber@trash.net>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#include <linux/module.h>
#include <linux/skbuff.h>
#include <linux/ip.h>
#include <net/checksum.h>

#include <linux/netfilter_ipv4.h>
#include <linux/netfilter_ipv6.h>
#include <linux/netfilter/x_tables.h>
#include <linux/netfilter/xt_CLASSIFY.h>
#include <linux/netfilter_arp.h>

MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Xtables: Qdisc classification");
MODULE_ALIAS("ipt_CLASSIFY");
MODULE_ALIAS("ip6t_CLASSIFY");
MODULE_ALIAS("arpt_CLASSIFY");

static unsigned int
classify_tg(struct sk_buff *skb, const struct xt_action_param *par)
{
	const struct xt_classify_target_info *clinfo = par->targinfo;

	skb->priority = clinfo->priority;
	return XT_CONTINUE;
}

static struct xt_target classify_tg_reg[] __read_mostly = {
	{
		.name       = "CLASSIFY",
		.revision   = 0,
		.family     = NFPROTO_UNSPEC,
		.hooks      = (1 << NF_INET_LOCAL_OUT) | (1 << NF_INET_FORWARD) |
		              (1 << NF_INET_POST_ROUTING),
		.target     = classify_tg,
		.targetsize = sizeof(struct xt_classify_target_info),
		.me         = THIS_MODULE,
	},
	{
		.name       = "CLASSIFY",
		.revision   = 0,
		.family     = NFPROTO_ARP,
		.hooks      = (1 << NF_ARP_OUT) | (1 << NF_ARP_FORWARD),
		.target     = classify_tg,
		.targetsize = sizeof(struct xt_classify_target_info),
		.me         = THIS_MODULE,
	},
};

static int __init classify_tg_init(void)
{
	return xt_register_targets(classify_tg_reg, ARRAY_SIZE(classify_tg_reg));
}

static void __exit classify_tg_exit(void)
{
	xt_unregister_targets(classify_tg_reg, ARRAY_SIZE(classify_tg_reg));
}

module_init(classify_tg_init);
module_exit(classify_tg_exit);
Commit	Line	Data
	1	/*
	2	* This is a module which is used for setting the skb->priority field
	3	* of an skb for qdisc classification.
	4	*/
	5
	6	/* (C) 2001-2002 Patrick McHardy <kaber@trash.net>
	7	*
	8	* This program is free software; you can redistribute it and/or modify
	9	* it under the terms of the GNU General Public License version 2 as
	10	* published by the Free Software Foundation.
	11	*/
	12
	13	#include <linux/module.h>
	14	#include <linux/skbuff.h>
	15	#include <linux/ip.h>
	16	#include <net/checksum.h>
	17
	18	#include <linux/netfilter_ipv4.h>
	19	#include <linux/netfilter_ipv6.h>
	20	#include <linux/netfilter/x_tables.h>
	21	#include <linux/netfilter/xt_CLASSIFY.h>
	22	#include <linux/netfilter_arp.h>
	23
	24	MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>");
	25	MODULE_LICENSE("GPL");
	26	MODULE_DESCRIPTION("Xtables: Qdisc classification");
	27	MODULE_ALIAS("ipt_CLASSIFY");
	28	MODULE_ALIAS("ip6t_CLASSIFY");
	29	MODULE_ALIAS("arpt_CLASSIFY");
	30
	31	static unsigned int
	32	classify_tg(struct sk_buff skb, const struct xt_action_param par)
	33	{
	34	const struct xt_classify_target_info *clinfo = par->targinfo;
	35
	36	skb->priority = clinfo->priority;
	37	return XT_CONTINUE;
	38	}
	39
	40	static struct xt_target classify_tg_reg[] __read_mostly = {
	41	{
	42	.name = "CLASSIFY",
	43	.revision = 0,
	44	.family = NFPROTO_UNSPEC,
	45	.hooks = (1 << NF_INET_LOCAL_OUT) \| (1 << NF_INET_FORWARD) \|
	46	(1 << NF_INET_POST_ROUTING),
	47	.target = classify_tg,
	48	.targetsize = sizeof(struct xt_classify_target_info),
	49	.me = THIS_MODULE,
	50	},
	51	{
	52	.name = "CLASSIFY",
	53	.revision = 0,
	54	.family = NFPROTO_ARP,
	55	.hooks = (1 << NF_ARP_OUT) \| (1 << NF_ARP_FORWARD),
	56	.target = classify_tg,
	57	.targetsize = sizeof(struct xt_classify_target_info),
	58	.me = THIS_MODULE,
	59	},
	60	};
	61
	62	static int __init classify_tg_init(void)
	63	{
	64	return xt_register_targets(classify_tg_reg, ARRAY_SIZE(classify_tg_reg));
	65	}
	66
	67	static void __exit classify_tg_exit(void)
	68	{
	69	xt_unregister_targets(classify_tg_reg, ARRAY_SIZE(classify_tg_reg));
	70	}
	71
	72	module_init(classify_tg_init);
	73	module_exit(classify_tg_exit);