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); 74