Contributors: 10
Author Tokens Token Proportion Commits Commit Proportion
Harald Welte 175 52.87% 2 9.09%
Patrick McHardy 70 21.15% 6 27.27%
Frédéric Leroy 35 10.57% 1 4.55%
Jan Engelhardt 30 9.06% 6 27.27%
Florian Westphal 11 3.32% 2 9.09%
Linus Torvalds (pre-git) 4 1.21% 1 4.55%
Thomas Gleixner 2 0.60% 1 4.55%
Herbert Xu 2 0.60% 1 4.55%
Igor Maravić 1 0.30% 1 4.55%
Daniele Bellucci 1 0.30% 1 4.55%
Total 331 22

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758596061626364656667686970717273747576777879808182
// SPDX-License-Identifier: GPL-2.0-only
/*
 * 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>
 */

#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_IPV4,
		.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,
	},
#if IS_ENABLED(CONFIG_IP6_NF_IPTABLES)
	{
		.name       = "CLASSIFY",
		.revision   = 0,
		.family     = NFPROTO_IPV6,
		.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,
	},
#endif
};

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);