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 23 MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); 24 MODULE_LICENSE("GPL"); 25 MODULE_DESCRIPTION("Xtables: Qdisc classification"); 26 MODULE_ALIAS("ipt_CLASSIFY"); 27 MODULE_ALIAS("ip6t_CLASSIFY"); 28 29 static unsigned int 30 classify_tg(struct sk_buff *skb, const struct xt_target_param *par) 31 { 32 const struct xt_classify_target_info *clinfo = par->targinfo; 33 34 skb->priority = clinfo->priority; 35 return XT_CONTINUE; 36 } 37 38 static struct xt_target classify_tg_reg __read_mostly = { 39 .name = "CLASSIFY", 40 .revision = 0, 41 .family = NFPROTO_UNSPEC, 42 .table = "mangle", 43 .hooks = (1 << NF_INET_LOCAL_OUT) | (1 << NF_INET_FORWARD) | 44 (1 << NF_INET_POST_ROUTING), 45 .target = classify_tg, 46 .targetsize = sizeof(struct xt_classify_target_info), 47 .me = THIS_MODULE, 48 }; 49 50 static int __init classify_tg_init(void) 51 { 52 return xt_register_target(&classify_tg_reg); 53 } 54 55 static void __exit classify_tg_exit(void) 56 { 57 xt_unregister_target(&classify_tg_reg); 58 } 59 60 module_init(classify_tg_init); 61 module_exit(classify_tg_exit); 62