Commit 11fa2aa3 authored by Jan Engelhardt's avatar Jan Engelhardt Committed by David S. Miller
Browse files

[NETFILTER]: remove ipt_TOS.c



Commit 88c85d81f74f92371745158aebc5cbf490412002 forgot to remove the
old ipt_TOS file (whose code has been merged into xt_DSCP). Remove
it now.
Signed-off-by: default avatarJan Engelhardt <jengelh@computergmbh.de>
Signed-off-by: default avatarPatrick McHardy <kaber@trash.net>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 8ce22fca
/* 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);
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