[NETFILTER]: Remove changelogs and CVS IDs

[karo-tx-linux.git] / net / ipv4 / netfilter / ipt_ECN.c

diff --git a/net/ipv4/netfilter/ipt_ECN.c b/net/ipv4/netfilter/ipt_ECN.c
index 4f565633631dfa971d39eb1bc151ebf0b292fc8d..918ca92e534a2ef9ed7e1730c771f83829e9b1af 100644 (file)
--- a/net/ipv4/netfilter/ipt_ECN.c
+++ b/net/ipv4/netfilter/ipt_ECN.c
@@ -5,14 +5,13 @@
  * 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.
- *
- * ipt_ECN.c,v 1.5 2002/08/18 19:36:51 laforge Exp
 */
 
 #include <linux/in.h>
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <linux/ip.h>
+#include <net/ip.h>
 #include <linux/tcp.h>
 #include <net/checksum.h>
 
@@ -29,13 +28,13 @@ MODULE_DESCRIPTION("iptables ECN modification module");
 static inline int
 set_ect_ip(struct sk_buff **pskb, const struct ipt_ECN_info *einfo)
 {
-       struct iphdr *iph = (*pskb)->nh.iph;
+       struct iphdr *iph = ip_hdr(*pskb);
 
        if ((iph->tos & IPT_ECN_IP_MASK) != (einfo->ip_ect & IPT_ECN_IP_MASK)) {
                __u8 oldtos;
                if (!skb_make_writable(pskb, sizeof(struct iphdr)))
                        return 0;
-               iph = (*pskb)->nh.iph;
+               iph = ip_hdr(*pskb);
                oldtos = iph->tos;
                iph->tos &= ~IPT_ECN_IP_MASK;
                iph->tos |= (einfo->ip_ect & IPT_ECN_IP_MASK);
@@ -52,7 +51,7 @@ set_ect_tcp(struct sk_buff **pskb, const struct ipt_ECN_info *einfo)
        __be16 oldval;
 
        /* Not enought header? */
-       tcph = skb_header_pointer(*pskb, (*pskb)->nh.iph->ihl*4,
+       tcph = skb_header_pointer(*pskb, ip_hdrlen(*pskb),
                                  sizeof(_tcph), &_tcph);
        if (!tcph)
                return 0;
@@ -63,9 +62,9 @@ set_ect_tcp(struct sk_buff **pskb, const struct ipt_ECN_info *einfo)
             tcph->cwr == einfo->proto.tcp.cwr)))
                return 1;
 
-       if (!skb_make_writable(pskb, (*pskb)->nh.iph->ihl*4+sizeof(*tcph)))
+       if (!skb_make_writable(pskb, ip_hdrlen(*pskb) + sizeof(*tcph)))
                return 0;
-       tcph = (void *)(*pskb)->nh.iph + (*pskb)->nh.iph->ihl*4;
+       tcph = (void *)ip_hdr(*pskb) + ip_hdrlen(*pskb);
 
        oldval = ((__be16 *)tcph)[6];
        if (einfo->operation & IPT_ECN_OP_SET_ECE)
@@ -93,7 +92,7 @@ target(struct sk_buff **pskb,
                        return NF_DROP;
 
        if (einfo->operation & (IPT_ECN_OP_SET_ECE | IPT_ECN_OP_SET_CWR)
-           && (*pskb)->nh.iph->protocol == IPPROTO_TCP)
+           && ip_hdr(*pskb)->protocol == IPPROTO_TCP)
                if (!set_ect_tcp(pskb, einfo))
                        return NF_DROP;