[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph

[safe/jmp/linux-2.6] / net / ipv4 / ipvs / ip_vs_xmit.c

diff --git a/net/ipv4/ipvs/ip_vs_xmit.c b/net/ipv4/ipvs/ip_vs_xmit.c
index d1403d0..a7aee68 100644 (file)
--- a/net/ipv4/ipvs/ip_vs_xmit.c
+++ b/net/ipv4/ipvs/ip_vs_xmit.c
@@ -156,7 +156,7 @@ ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
                  struct ip_vs_protocol *pp)
 {
        struct rtable *rt;                      /* Route to the other host */
-       struct iphdr  *iph = skb->nh.iph;
+       struct iphdr  *iph = ip_hdr(skb);
        u8     tos = iph->tos;
        int    mtu;
        struct flowi fl = {
@@ -193,7 +193,7 @@ ip_vs_bypass_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
                ip_rt_put(rt);
                return NF_STOLEN;
        }
-       ip_send_check(skb->nh.iph);
+       ip_send_check(ip_hdr(skb));
 
        /* drop old route */
        dst_release(skb->dst);
@@ -226,7 +226,7 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 {
        struct rtable *rt;              /* Route to the other host */
        int mtu;
-       struct iphdr *iph = skb->nh.iph;
+       struct iphdr *iph = ip_hdr(skb);
 
        EnterFunction(10);
 
@@ -266,8 +266,8 @@ ip_vs_nat_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
        /* mangle the packet */
        if (pp->dnat_handler && !pp->dnat_handler(&skb, pp, cp))
                goto tx_error;
-       skb->nh.iph->daddr = cp->daddr;
-       ip_send_check(skb->nh.iph);
+       ip_hdr(skb)->daddr = cp->daddr;
+       ip_send_check(ip_hdr(skb));
 
        IP_VS_DBG_PKT(10, pp, skb, 0, "After DNAT");
 
@@ -320,7 +320,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
 {
        struct rtable *rt;                      /* Route to the other host */
        struct net_device *tdev;                /* Device to other host */
-       struct iphdr  *old_iph = skb->nh.iph;
+       struct iphdr  *old_iph = ip_hdr(skb);
        u8     tos = old_iph->tos;
        __be16 df = old_iph->frag_off;
        struct iphdr  *iph;                     /* Our new IP header */
@@ -377,7 +377,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
                }
                kfree_skb(skb);
                skb = new_skb;
-               old_iph = skb->nh.iph;
+               old_iph = ip_hdr(skb);
        }
 
        skb->h.raw = (void *) old_iph;
@@ -396,7 +396,7 @@ ip_vs_tunnel_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
        /*
         *      Push down and install the IPIP header.
         */
-       iph                     =       skb->nh.iph;
+       iph                     =       ip_hdr(skb);
        iph->version            =       4;
        iph->ihl                =       sizeof(struct iphdr)>>2;
        iph->frag_off           =       df;
@@ -436,7 +436,7 @@ ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
              struct ip_vs_protocol *pp)
 {
        struct rtable *rt;                      /* Route to the other host */
-       struct iphdr  *iph = skb->nh.iph;
+       struct iphdr  *iph = ip_hdr(skb);
        int    mtu;
 
        EnterFunction(10);
@@ -461,7 +461,7 @@ ip_vs_dr_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
                ip_rt_put(rt);
                return NF_STOLEN;
        }
-       ip_send_check(skb->nh.iph);
+       ip_send_check(ip_hdr(skb));
 
        /* drop old route */
        dst_release(skb->dst);
@@ -515,12 +515,12 @@ ip_vs_icmp_xmit(struct sk_buff *skb, struct ip_vs_conn *cp,
         * mangle and send the packet here (only for VS/NAT)
         */
 
-       if (!(rt = __ip_vs_get_out_rt(cp, RT_TOS(skb->nh.iph->tos))))
+       if (!(rt = __ip_vs_get_out_rt(cp, RT_TOS(ip_hdr(skb)->tos))))
                goto tx_error_icmp;
 
        /* MTU checking */
        mtu = dst_mtu(&rt->u.dst);
-       if ((skb->len > mtu) && (skb->nh.iph->frag_off & htons(IP_DF))) {
+       if ((skb->len > mtu) && (ip_hdr(skb)->frag_off & htons(IP_DF))) {
                ip_rt_put(rt);
                icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED, htonl(mtu));
                IP_VS_DBG_RL("ip_vs_in_icmp(): frag needed\n");