diff options
Diffstat (limited to 'net')
-rw-r--r-- | net/ipv4/netfilter/ipt_TOS.c | 82 |
1 files changed, 0 insertions, 82 deletions
diff --git a/net/ipv4/netfilter/ipt_TOS.c b/net/ipv4/netfilter/ipt_TOS.c deleted file mode 100644 index 1a9244104b1..00000000000 --- a/net/ipv4/netfilter/ipt_TOS.c +++ /dev/null @@ -1,82 +0,0 @@ -/* This is a module which is used for setting the TOS field of a packet. */ - -/* (C) 1999-2001 Paul `Rusty' Russell - * (C) 2002-2004 Netfilter Core Team <coreteam@netfilter.org> - * - * 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/x_tables.h> -#include <linux/netfilter_ipv4/ipt_TOS.h> - -MODULE_LICENSE("GPL"); -MODULE_AUTHOR("Netfilter Core Team <coreteam@netfilter.org>"); -MODULE_DESCRIPTION("iptables TOS mangling module"); - -static unsigned int -tos_tg(struct sk_buff *skb, const struct net_device *in, - const struct net_device *out, unsigned int hooknum, - const struct xt_target *target, const void *targinfo) -{ - const struct ipt_tos_target_info *tosinfo = targinfo; - struct iphdr *iph = ip_hdr(skb); - - if ((iph->tos & IPTOS_TOS_MASK) != tosinfo->tos) { - __u8 oldtos; - if (!skb_make_writable(skb, sizeof(struct iphdr))) - return NF_DROP; - iph = ip_hdr(skb); - oldtos = iph->tos; - iph->tos = (iph->tos & IPTOS_PREC_MASK) | tosinfo->tos; - csum_replace2(&iph->check, htons(oldtos), htons(iph->tos)); - } - return XT_CONTINUE; -} - -static bool -tos_tg_check(const char *tablename, const void *e_void, - const struct xt_target *target, void *targinfo, - unsigned int hook_mask) -{ - const u_int8_t tos = ((struct ipt_tos_target_info *)targinfo)->tos; - - if (tos != IPTOS_LOWDELAY - && tos != IPTOS_THROUGHPUT - && tos != IPTOS_RELIABILITY - && tos != IPTOS_MINCOST - && tos != IPTOS_NORMALSVC) { - printk(KERN_WARNING "TOS: bad tos value %#x\n", tos); - return false; - } - return true; -} - -static struct xt_target tos_tg_reg __read_mostly = { - .name = "TOS", - .family = AF_INET, - .target = tos_tg, - .targetsize = sizeof(struct ipt_tos_target_info), - .table = "mangle", - .checkentry = tos_tg_check, - .me = THIS_MODULE, -}; - -static int __init tos_tg_init(void) -{ - return xt_register_target(&tos_tg_reg); -} - -static void __exit tos_tg_exit(void) -{ - xt_unregister_target(&tos_tg_reg); -} - -module_init(tos_tg_init); -module_exit(tos_tg_exit); |