From 8e4bff4cab0ddac6060645b0715210484d02ff40 Mon Sep 17 00:00:00 2001
From: Yuval Adam <_@yuv.al>
Date: Wed, 30 Aug 2017 08:25:59 +0000
Subject: Initial file dump from open source release

---
 net/netfilter/xt_CLASSIFY.c | 73 +++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 73 insertions(+)
 create mode 100644 net/netfilter/xt_CLASSIFY.c

(limited to 'net/netfilter/xt_CLASSIFY.c')

diff --git a/net/netfilter/xt_CLASSIFY.c b/net/netfilter/xt_CLASSIFY.c
new file mode 100644
index 00000000..af9c4dad
--- /dev/null
+++ b/net/netfilter/xt_CLASSIFY.c
@@ -0,0 +1,73 @@
+/*
+ * 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);
-- 
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