Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 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 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 18 | #include <linux/netfilter/x_tables.h> |
| 19 | #include <linux/netfilter/xt_CLASSIFY.h> |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 20 | |
| 21 | MODULE_AUTHOR("Patrick McHardy <kaber@trash.net>"); |
| 22 | MODULE_LICENSE("GPL"); |
| 23 | MODULE_DESCRIPTION("iptables qdisc classification target module"); |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 24 | MODULE_ALIAS("ipt_CLASSIFY"); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 25 | |
| 26 | static unsigned int |
| 27 | target(struct sk_buff **pskb, |
| 28 | const struct net_device *in, |
| 29 | const struct net_device *out, |
| 30 | unsigned int hooknum, |
Patrick McHardy | c498673 | 2006-03-20 18:02:56 -0800 | [diff] [blame] | 31 | const struct xt_target *target, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 32 | const void *targinfo, |
| 33 | void *userinfo) |
| 34 | { |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 35 | const struct xt_classify_target_info *clinfo = targinfo; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 36 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 37 | if ((*pskb)->priority != clinfo->priority) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 38 | (*pskb)->priority = clinfo->priority; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 39 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 40 | return XT_CONTINUE; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 41 | } |
| 42 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 43 | static struct xt_target classify_reg = { |
| 44 | .name = "CLASSIFY", |
| 45 | .target = target, |
Patrick McHardy | 5d04bff | 2006-03-20 18:01:58 -0800 | [diff] [blame] | 46 | .targetsize = sizeof(struct xt_classify_target_info), |
| 47 | .table = "mangle", |
| 48 | .hooks = (1 << NF_IP_LOCAL_OUT) | (1 << NF_IP_FORWARD) | |
| 49 | (1 << NF_IP_POST_ROUTING), |
Pablo Neira Ayuso | a45049c | 2006-03-22 13:55:40 -0800 | [diff] [blame] | 50 | .family = AF_INET, |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 51 | .me = THIS_MODULE, |
| 52 | }; |
| 53 | static struct xt_target classify6_reg = { |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 54 | .name = "CLASSIFY", |
| 55 | .target = target, |
Patrick McHardy | 5d04bff | 2006-03-20 18:01:58 -0800 | [diff] [blame] | 56 | .targetsize = sizeof(struct xt_classify_target_info), |
| 57 | .table = "mangle", |
| 58 | .hooks = (1 << NF_IP_LOCAL_OUT) | (1 << NF_IP_FORWARD) | |
| 59 | (1 << NF_IP_POST_ROUTING), |
Pablo Neira Ayuso | a45049c | 2006-03-22 13:55:40 -0800 | [diff] [blame] | 60 | .family = AF_INET6, |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 61 | .me = THIS_MODULE, |
| 62 | }; |
| 63 | |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 64 | |
Andrew Morton | 65b4b4e | 2006-03-28 16:37:06 -0800 | [diff] [blame^] | 65 | static int __init xt_classify_init(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 66 | { |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 67 | int ret; |
| 68 | |
Pablo Neira Ayuso | a45049c | 2006-03-22 13:55:40 -0800 | [diff] [blame] | 69 | ret = xt_register_target(&classify_reg); |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 70 | if (ret) |
| 71 | return ret; |
| 72 | |
Pablo Neira Ayuso | a45049c | 2006-03-22 13:55:40 -0800 | [diff] [blame] | 73 | ret = xt_register_target(&classify6_reg); |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 74 | if (ret) |
Pablo Neira Ayuso | a45049c | 2006-03-22 13:55:40 -0800 | [diff] [blame] | 75 | xt_unregister_target(&classify_reg); |
Harald Welte | 2e4e6a1 | 2006-01-12 13:30:04 -0800 | [diff] [blame] | 76 | |
| 77 | return ret; |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 78 | } |
| 79 | |
Andrew Morton | 65b4b4e | 2006-03-28 16:37:06 -0800 | [diff] [blame^] | 80 | static void __exit xt_classify_fini(void) |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 81 | { |
Pablo Neira Ayuso | a45049c | 2006-03-22 13:55:40 -0800 | [diff] [blame] | 82 | xt_unregister_target(&classify_reg); |
| 83 | xt_unregister_target(&classify6_reg); |
Linus Torvalds | 1da177e | 2005-04-16 15:20:36 -0700 | [diff] [blame] | 84 | } |
| 85 | |
Andrew Morton | 65b4b4e | 2006-03-28 16:37:06 -0800 | [diff] [blame^] | 86 | module_init(xt_classify_init); |
| 87 | module_exit(xt_classify_fini); |