Merge git://oss.sgi.com:8090/xfs/xfs-2.6

[linux-drm-fsl-dcu.git] / net / ipv4 / netfilter / ip_nat_standalone.c

diff --git a/net/ipv4/netfilter/ip_nat_standalone.c b/net/ipv4/netfilter/ip_nat_standalone.c
index 17de077a790169166533da0a12056012b668f77d..adf25f9f70e1316fe422e76015c1e23317c26fd2 100644 (file)
--- a/net/ipv4/netfilter/ip_nat_standalone.c
+++ b/net/ipv4/netfilter/ip_nat_standalone.c
@@ -30,9 +30,6 @@
 #include <net/checksum.h>
 #include <linux/spinlock.h>
 
-#define ASSERT_READ_LOCK(x)
-#define ASSERT_WRITE_LOCK(x)
-
 #include <linux/netfilter_ipv4/ip_nat.h>
 #include <linux/netfilter_ipv4/ip_nat_rule.h>
 #include <linux/netfilter_ipv4/ip_nat_protocol.h>
@@ -40,7 +37,6 @@
 #include <linux/netfilter_ipv4/ip_nat_helper.h>
 #include <linux/netfilter_ipv4/ip_tables.h>
 #include <linux/netfilter_ipv4/ip_conntrack_core.h>
-#include <linux/netfilter_ipv4/listhelp.h>
 
 #if 0
 #define DEBUGP printk
@@ -48,12 +44,6 @@
 #define DEBUGP(format, args...)
 #endif
 
-#define HOOKNAME(hooknum) ((hooknum) == NF_IP_POST_ROUTING ? "POST_ROUTING"  \
-                          : ((hooknum) == NF_IP_PRE_ROUTING ? "PRE_ROUTING" \
-                             : ((hooknum) == NF_IP_LOCAL_OUT ? "LOCAL_OUT"  \
-                                : ((hooknum) == NF_IP_LOCAL_IN ? "LOCAL_IN"  \
-                                   : "*ERROR*")))
-
 #ifdef CONFIG_XFRM
 static void nat_decode_session(struct sk_buff *skb, struct flowi *fl)
 {
@@ -91,7 +81,7 @@ static void nat_decode_session(struct sk_buff *skb, struct flowi *fl)
        }
 }
 #endif
-               
+
 static unsigned int
 ip_nat_fn(unsigned int hooknum,
          struct sk_buff **pskb,
@@ -110,11 +100,6 @@ ip_nat_fn(unsigned int hooknum,
        IP_NF_ASSERT(!((*pskb)->nh.iph->frag_off
                       & htons(IP_MF|IP_OFFSET)));
 
-       /* If we had a hardware checksum before, it's now invalid */
-       if ((*pskb)->ip_summed == CHECKSUM_HW)
-               if (skb_checksum_help(*pskb, (out == NULL)))
-                       return NF_DROP;
-
        ct = ip_conntrack_get(*pskb, &ctinfo);
        /* Can't track?  It's not due to stress, or conntrack would
           have dropped it.  Hence it's the user's responsibilty to
@@ -122,8 +107,8 @@ ip_nat_fn(unsigned int hooknum,
           protocol. 8) --RR */
        if (!ct) {
                /* Exception: ICMP redirect to new connection (not in
-                   hash table yet).  We must not let this through, in
-                   case we're doing NAT to the same network. */
+                  hash table yet).  We must not let this through, in
+                  case we're doing NAT to the same network. */
                if ((*pskb)->nh.iph->protocol == IPPROTO_ICMP) {
                        struct icmphdr _hdr, *hp;
 
@@ -145,8 +130,8 @@ ip_nat_fn(unsigned int hooknum,
        case IP_CT_RELATED:
        case IP_CT_RELATED+IP_CT_IS_REPLY:
                if ((*pskb)->nh.iph->protocol == IPPROTO_ICMP) {
-                       if (!ip_nat_icmp_reply_translation(pskb, ct, maniptype,
-                                                          CTINFO2DIR(ctinfo)))
+                       if (!ip_nat_icmp_reply_translation(ct, ctinfo,
+                                                          hooknum, pskb))
                                return NF_DROP;
                        else
                                return NF_ACCEPT;
@@ -163,7 +148,7 @@ ip_nat_fn(unsigned int hooknum,
                        if (unlikely(is_confirmed(ct)))
                                /* NAT module was loaded late */
                                ret = alloc_null_binding_confirmed(ct, info,
-                                                                  hooknum);
+                                                                  hooknum);
                        else if (hooknum == NF_IP_LOCAL_IN)
                                /* LOCAL_IN hook doesn't have a chain!  */
                                ret = alloc_null_binding(ct, info, hooknum);
@@ -194,13 +179,13 @@ ip_nat_fn(unsigned int hooknum,
 
 static unsigned int
 ip_nat_in(unsigned int hooknum,
-          struct sk_buff **pskb,
-          const struct net_device *in,
-          const struct net_device *out,
-          int (*okfn)(struct sk_buff *))
+         struct sk_buff **pskb,
+         const struct net_device *in,
+         const struct net_device *out,
+         int (*okfn)(struct sk_buff *))
 {
        unsigned int ret;
-       u_int32_t daddr = (*pskb)->nh.iph->daddr;
+       __be32 daddr = (*pskb)->nh.iph->daddr;
 
        ret = ip_nat_fn(hooknum, pskb, in, out, okfn);
        if (ret != NF_DROP && ret != NF_STOLEN
@@ -274,7 +259,8 @@ ip_nat_local_fn(unsigned int hooknum,
                       ct->tuplehash[!dir].tuple.src.u.all
 #endif
                    )
-                       return ip_route_me_harder(pskb) == 0 ? ret : NF_DROP;
+                       if (ip_route_me_harder(pskb, RTN_UNSPEC))
+                               ret = NF_DROP;
        }
        return ret;
 }
@@ -291,9 +277,9 @@ ip_nat_adjust(unsigned int hooknum,
 
        ct = ip_conntrack_get(*pskb, &ctinfo);
        if (ct && test_bit(IPS_SEQ_ADJUST_BIT, &ct->status)) {
-               DEBUGP("ip_nat_standalone: adjusting sequence number\n");
-               if (!ip_nat_seq_adjust(pskb, ct, ctinfo))
-                       return NF_DROP;
+               DEBUGP("ip_nat_standalone: adjusting sequence number\n");
+               if (!ip_nat_seq_adjust(pskb, ct, ctinfo))
+                       return NF_DROP;
        }
        return NF_ACCEPT;
 }