[SK_BUFF]: Introduce skb_set_transport_header

[linux-2.6-omap-h63xx.git] / net / ipv4 / netfilter / ipt_ecn.c

diff --git a/net/ipv4/netfilter/ipt_ecn.c b/net/ipv4/netfilter/ipt_ecn.c
index dafbdec0efc07cef88a73dbd7b14be08a74fe139..3b4ca0c5c12142c539da2d8a1886a861aca173d6 100644 (file)
--- a/net/ipv4/netfilter/ipt_ecn.c
+++ b/net/ipv4/netfilter/ipt_ecn.c
@@ -9,10 +9,14 @@
  * published by the Free Software Foundation.
  */
 
+#include <linux/in.h>
+#include <linux/ip.h>
+#include <net/ip.h>
 #include <linux/module.h>
 #include <linux/skbuff.h>
 #include <linux/tcp.h>
 
+#include <linux/netfilter/x_tables.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ipt_ecn.h>
 
@@ -23,7 +27,7 @@ MODULE_LICENSE("GPL");
 static inline int match_ip(const struct sk_buff *skb,
                           const struct ipt_ecn_info *einfo)
 {
-       return ((skb->nh.iph->tos&IPT_ECN_IP_MASK) == einfo->ip_ect);
+       return (ip_hdr(skb)->tos & IPT_ECN_IP_MASK) == einfo->ip_ect;
 }
 
 static inline int match_tcp(const struct sk_buff *skb,
@@ -35,8 +39,7 @@ static inline int match_tcp(const struct sk_buff *skb,
        /* In practice, TCP match does this, so can't fail.  But let's
         * be good citizens.
         */
-       th = skb_header_pointer(skb, skb->nh.iph->ihl * 4,
-                               sizeof(_tcph), &_tcph);
+       th = skb_header_pointer(skb, ip_hdrlen(skb), sizeof(_tcph), &_tcph);
        if (th == NULL) {
                *hotdrop = 0;
                return 0;
@@ -77,7 +80,7 @@ static int match(const struct sk_buff *skb,
                        return 0;
 
        if (info->operation & (IPT_ECN_OP_MATCH_ECE|IPT_ECN_OP_MATCH_CWR)) {
-               if (skb->nh.iph->protocol != IPPROTO_TCP)
+               if (ip_hdr(skb)->protocol != IPPROTO_TCP)
                        return 0;
                if (!match_tcp(skb, info, hotdrop))
                        return 0;
@@ -109,8 +112,9 @@ static int checkentry(const char *tablename, const void *ip_void,
        return 1;
 }
 
-static struct ipt_match ecn_match = {
+static struct xt_match ecn_match = {
        .name           = "ecn",
+       .family         = AF_INET,
        .match          = match,
        .matchsize      = sizeof(struct ipt_ecn_info),
        .checkentry     = checkentry,
@@ -119,12 +123,12 @@ static struct ipt_match ecn_match = {
 
 static int __init ipt_ecn_init(void)
 {
-       return ipt_register_match(&ecn_match);
+       return xt_register_match(&ecn_match);
 }
 
 static void __exit ipt_ecn_fini(void)
 {
-       ipt_unregister_match(&ecn_match);
+       xt_unregister_match(&ecn_match);
 }
 
 module_init(ipt_ecn_init);