nfsd: nfsd should drop CAP_MKNOD for non-root

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

diff --git a/net/ipv4/ip_forward.c b/net/ipv4/ip_forward.c
index 877da3e..df3fe50 100644 (file)
--- a/net/ipv4/ip_forward.c
+++ b/net/ipv4/ip_forward.c
@@ -5,8 +5,6 @@
  *
  *             The IP forwarding functionality.
  *
- * Version:    $Id: ip_forward.c,v 1.48 2000/12/13 18:31:48 davem Exp $
- *
  * Authors:    see ip.c
  *
  * Fixes:
@@ -44,7 +42,7 @@ static int ip_forward_finish(struct sk_buff *skb)
 {
        struct ip_options * opt = &(IPCB(skb)->opt);
 
-       IP_INC_STATS_BH(IPSTATS_MIB_OUTFORWDATAGRAMS);
+       IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_OUTFORWDATAGRAMS);
 
        if (unlikely(opt->optlen))
                ip_forward_options(skb);
@@ -58,6 +56,9 @@ int ip_forward(struct sk_buff *skb)
        struct rtable *rt;      /* Route we use */
        struct ip_options * opt = &(IPCB(skb)->opt);
 
+       if (skb_warn_if_lro(skb))
+               goto drop;
+
        if (!xfrm4_policy_check(NULL, XFRM_POLICY_FWD, skb))
                goto drop;
 
@@ -80,14 +81,14 @@ int ip_forward(struct sk_buff *skb)
        if (!xfrm4_route_forward(skb))
                goto drop;
 
-       rt = (struct rtable*)skb->dst;
+       rt = skb->rtable;
 
        if (opt->is_strictroute && rt->rt_dst != rt->rt_gateway)
                goto sr_failed;
 
-       if (unlikely(skb->len > dst_mtu(&rt->u.dst) &&
+       if (unlikely(skb->len > dst_mtu(&rt->u.dst) && !skb_is_gso(skb) &&
                     (ip_hdr(skb)->frag_off & htons(IP_DF))) && !skb->local_df) {
-               IP_INC_STATS(IPSTATS_MIB_FRAGFAILS);
+               IP_INC_STATS(dev_net(rt->u.dst.dev), IPSTATS_MIB_FRAGFAILS);
                icmp_send(skb, ICMP_DEST_UNREACH, ICMP_FRAG_NEEDED,
                          htonl(dst_mtu(&rt->u.dst)));
                goto drop;
@@ -105,12 +106,12 @@ int ip_forward(struct sk_buff *skb)
         *      We now generate an ICMP HOST REDIRECT giving the route
         *      we calculated.
         */
-       if (rt->rt_flags&RTCF_DOREDIRECT && !opt->srr && !skb->sp)
+       if (rt->rt_flags&RTCF_DOREDIRECT && !opt->srr && !skb_sec_path(skb))
                ip_rt_send_redirect(skb);
 
        skb->priority = rt_tos2priority(iph->tos);
 
-       return NF_HOOK(PF_INET, NF_IP_FORWARD, skb, skb->dev, rt->u.dst.dev,
+       return NF_HOOK(PF_INET, NF_INET_FORWARD, skb, skb->dev, rt->u.dst.dev,
                       ip_forward_finish);
 
 sr_failed:
@@ -122,7 +123,7 @@ sr_failed:
 
 too_many_hops:
        /* Tell the sender its packet died... */
-       IP_INC_STATS_BH(IPSTATS_MIB_INHDRERRORS);
+       IP_INC_STATS_BH(dev_net(skb->dst->dev), IPSTATS_MIB_INHDRERRORS);
        icmp_send(skb, ICMP_TIME_EXCEEDED, ICMP_EXC_TTL, 0);
 drop:
        kfree_skb(skb);