Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6

* master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6:
  [NET]: Fix MAX_HEADER setting.
  [NETFILTER]: ipt_REJECT: fix memory corruption
  [NETFILTER]: conntrack: fix refcount leak when finding expectation
  [NETFILTER]: ctnetlink: fix reference count leak
  [NETFILTER]: nf_conntrack: fix the race on assign helper to new conntrack
  [NETFILTER]: nfctnetlink: assign helper to newly created conntrack

6 files changed, 35 insertions, 22 deletions

diff --git a/include/linux/netdevice.h b/include/linux/netdevice.h
index 9264139bd8df..83b8c4f1d69d 100644
--- a/include/linux/netdevice.h
+++ b/include/linux/netdevice.h
@@ -93,8 +93,10 @@ struct netpoll_info;
 #endif
 #endif
 
-#if !defined(CONFIG_NET_IPIP) && \
-    !defined(CONFIG_IPV6) && !defined(CONFIG_IPV6_MODULE)
+#if !defined(CONFIG_NET_IPIP) && !defined(CONFIG_NET_IPIP_MODULE) && \
+    !defined(CONFIG_NET_IPGRE) &&  !defined(CONFIG_NET_IPGRE_MODULE) && \
+    !defined(CONFIG_IPV6_SIT) && !defined(CONFIG_IPV6_SIT_MODULE) && \
+    !defined(CONFIG_IPV6_TUNNEL) && !defined(CONFIG_IPV6_TUNNEL_MODULE)
 #define MAX_HEADER LL_MAX_HEADER
 #else
 #define MAX_HEADER (LL_MAX_HEADER + 48)
diff --git a/net/ipv4/netfilter/ip_conntrack_core.c b/net/ipv4/netfilter/ip_conntrack_core.c
index 143c4668538b..8b848aa77bfc 100644
--- a/net/ipv4/netfilter/ip_conntrack_core.c
+++ b/net/ipv4/netfilter/ip_conntrack_core.c
@@ -225,10 +225,8 @@ __ip_conntrack_expect_find(const struct ip_conntrack_tuple *tuple)
         struct ip_conntrack_expect *i;
         
         list_for_each_entry(i, &ip_conntrack_expect_list, list) {
-                if (ip_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask)) {
-                        atomic_inc(&i->use);
+                if (ip_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask))
                         return i;
-                }
         }
         return NULL;
 }
@@ -241,6 +239,8 @@ ip_conntrack_expect_find(const struct ip_conntrack_tuple *tuple)
         
         read_lock_bh(&ip_conntrack_lock);
         i = __ip_conntrack_expect_find(tuple);
+        if (i)
+                atomic_inc(&i->use);
         read_unlock_bh(&ip_conntrack_lock);
 
         return i;
diff --git a/net/ipv4/netfilter/ip_conntrack_netlink.c b/net/ipv4/netfilter/ip_conntrack_netlink.c
index 262d0d44ec1b..55f0ae641081 100644
--- a/net/ipv4/netfilter/ip_conntrack_netlink.c
+++ b/net/ipv4/netfilter/ip_conntrack_netlink.c
@@ -153,6 +153,7 @@ ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct ip_conntrack *ct)
         return ret;
 
 nfattr_failure:
+        ip_conntrack_proto_put(proto);
         return -1;
 }
 
diff --git a/net/ipv4/netfilter/ipt_REJECT.c b/net/ipv4/netfilter/ipt_REJECT.c
index ad0312d0e4fd..264763adc39b 100644
--- a/net/ipv4/netfilter/ipt_REJECT.c
+++ b/net/ipv4/netfilter/ipt_REJECT.c
@@ -114,6 +114,14 @@ static void send_reset(struct sk_buff *oldskb, int hook)
         tcph->window = 0;
         tcph->urg_ptr = 0;
 
+        /* Adjust TCP checksum */
+        tcph->check = 0;
+        tcph->check = tcp_v4_check(tcph, sizeof(struct tcphdr),
+                                   nskb->nh.iph->saddr,
+                                   nskb->nh.iph->daddr,
+                                   csum_partial((char *)tcph,
+                                                sizeof(struct tcphdr), 0));
+
         /* Set DF, id = 0 */
         nskb->nh.iph->frag_off = htons(IP_DF);
         nskb->nh.iph->id = 0;
@@ -129,14 +137,8 @@ static void send_reset(struct sk_buff *oldskb, int hook)
         if (ip_route_me_harder(&nskb, addr_type))
                 goto free_nskb;
 
-        /* Adjust TCP checksum */
         nskb->ip_summed = CHECKSUM_NONE;
-        tcph->check = 0;
-        tcph->check = tcp_v4_check(tcph, sizeof(struct tcphdr),
-                                   nskb->nh.iph->saddr,
-                                   nskb->nh.iph->daddr,
-                                   csum_partial((char *)tcph,
-                                                sizeof(struct tcphdr), 0));
+
         /* Adjust IP TTL */
         nskb->nh.iph->ttl = dst_metric(nskb->dst, RTAX_HOPLIMIT);
 
diff --git a/net/netfilter/nf_conntrack_core.c b/net/netfilter/nf_conntrack_core.c
index 836541e509fe..de0567b1f422 100644
--- a/net/netfilter/nf_conntrack_core.c
+++ b/net/netfilter/nf_conntrack_core.c
@@ -469,10 +469,8 @@ __nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple)
         struct nf_conntrack_expect *i;
         
         list_for_each_entry(i, &nf_conntrack_expect_list, list) {
-                if (nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask)) {
-                        atomic_inc(&i->use);
+                if (nf_ct_tuple_mask_cmp(tuple, &i->tuple, &i->mask))
                         return i;
-                }
         }
         return NULL;
 }
@@ -485,6 +483,8 @@ nf_conntrack_expect_find(const struct nf_conntrack_tuple *tuple)
         
         read_lock_bh(&nf_conntrack_lock);
         i = __nf_conntrack_expect_find(tuple);
+        if (i)
+                atomic_inc(&i->use);
         read_unlock_bh(&nf_conntrack_lock);
 
         return i;
@@ -893,12 +893,6 @@ __nf_conntrack_alloc(const struct nf_conntrack_tuple *orig,
 
         memset(conntrack, 0, nf_ct_cache[features].size);
         conntrack->features = features;
-        if (helper) {
-                struct nf_conn_help *help = nfct_help(conntrack);
-                NF_CT_ASSERT(help);
-                help->helper = helper;
-        }
-
         atomic_set(&conntrack->ct_general.use, 1);
         conntrack->ct_general.destroy = destroy_conntrack;
         conntrack->tuplehash[IP_CT_DIR_ORIGINAL].tuple = *orig;
@@ -982,8 +976,13 @@ init_conntrack(const struct nf_conntrack_tuple *tuple,
 #endif
                 nf_conntrack_get(&conntrack->master->ct_general);
                 NF_CT_STAT_INC(expect_new);
-        } else
+        } else {
+                struct nf_conn_help *help = nfct_help(conntrack);
+
+                if (help)
+                        help->helper = __nf_ct_helper_find(&repl_tuple);
                 NF_CT_STAT_INC(new);
+        }
 
         /* Overload tuple linked list to put us in unconfirmed list. */
         list_add(&conntrack->tuplehash[IP_CT_DIR_ORIGINAL].list, &unconfirmed);
diff --git a/net/netfilter/nf_conntrack_netlink.c b/net/netfilter/nf_conntrack_netlink.c
index bd0156a28ecd..ab67c2be2b5d 100644
--- a/net/netfilter/nf_conntrack_netlink.c
+++ b/net/netfilter/nf_conntrack_netlink.c
@@ -161,6 +161,7 @@ ctnetlink_dump_protoinfo(struct sk_buff *skb, const struct nf_conn *ct)
         return ret;
 
 nfattr_failure:
+        nf_ct_proto_put(proto);
         return -1;
 }
 
@@ -949,6 +950,7 @@ ctnetlink_create_conntrack(struct nfattr *cda[],
 {
         struct nf_conn *ct;
         int err = -EINVAL;
+        struct nf_conn_help *help;
 
         ct = nf_conntrack_alloc(otuple, rtuple);
         if (ct == NULL || IS_ERR(ct))
@@ -976,9 +978,16 @@ ctnetlink_create_conntrack(struct nfattr *cda[],
                 ct->mark = ntohl(*(u_int32_t *)NFA_DATA(cda[CTA_MARK-1]));
 #endif
 
+        help = nfct_help(ct);
+        if (help)
+                help->helper = nf_ct_helper_find_get(rtuple);
+
         add_timer(&ct->timeout);
         nf_conntrack_hash_insert(ct);
 
+        if (help && help->helper)
+                nf_ct_helper_put(help->helper);
+
         return 0;
 
 err: