kernel: add missing checks in the netfilter optimization patch which broke some rules containing only source/destination address checks

git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27923 3c298f89-4303-0410-b956-a3cf2f4a3e73

2 files changed, 11 insertions, 8 deletions

diff --git a/target/linux/generic/patches-2.6.39/610-netfilter_match_bypass_default_checks.patch b/target/linux/generic/patches-2.6.39/610-netfilter_match_bypass_default_checks.patch
index ac0fd151cd..98c28c7433 100644
--- a/target/linux/generic/patches-2.6.39/610-netfilter_match_bypass_default_checks.patch
+++ b/target/linux/generic/patches-2.6.39/610-netfilter_match_bypass_default_checks.patch
@@ -20,7 +20,7 @@
  	if (FWINV((ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr,
  		  IPT_INV_SRCIP) ||
  	    FWINV((ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr,
-@@ -143,6 +146,26 @@ ip_packet_match(const struct iphdr *ip,
+@@ -143,6 +146,29 @@ ip_packet_match(const struct iphdr *ip,
  	return true;
  }
  
@@ -38,6 +38,9 @@
 +	if (memcmp(ip->outiface_mask, iface_mask, IFNAMSIZ) != 0)
 +		return;
 +
++	if (ip->smsk.s_addr || ip->dmsk.s_addr)
++		return;
++
 +	if (ip->proto)
 +		return;
 +
@@ -47,7 +50,7 @@
  static bool
  ip_checkentry(const struct ipt_ip *ip)
  {
-@@ -566,7 +589,7 @@ static void cleanup_match(struct xt_entr
+@@ -566,7 +592,7 @@ static void cleanup_match(struct xt_entr
  }
  
  static int
@@ -56,7 +59,7 @@
  {
  	const struct xt_entry_target *t;
  
-@@ -575,6 +598,8 @@ check_entry(const struct ipt_entry *e, c
+@@ -575,6 +601,8 @@ check_entry(const struct ipt_entry *e, c
  		return -EINVAL;
  	}
  
@@ -65,7 +68,7 @@
  	if (e->target_offset + sizeof(struct xt_entry_target) >
  	    e->next_offset)
  		return -EINVAL;
-@@ -936,6 +961,7 @@ copy_entries_to_user(unsigned int total_
+@@ -936,6 +964,7 @@ copy_entries_to_user(unsigned int total_
  	const struct xt_table_info *private = table->private;
  	int ret = 0;
  	const void *loc_cpu_entry;
@@ -73,7 +76,7 @@
  
  	counters = alloc_counters(table);
  	if (IS_ERR(counters))
-@@ -967,6 +993,14 @@ copy_entries_to_user(unsigned int total_
+@@ -967,6 +996,14 @@ copy_entries_to_user(unsigned int total_
  			goto free_counters;
  		}
  
diff --git a/target/linux/generic/patches-2.6.39/611-netfilter_match_bypass_default_table.patch b/target/linux/generic/patches-2.6.39/611-netfilter_match_bypass_default_table.patch
index f2004a6b12..0ea58c95d9 100644
--- a/target/linux/generic/patches-2.6.39/611-netfilter_match_bypass_default_table.patch
+++ b/target/linux/generic/patches-2.6.39/611-netfilter_match_bypass_default_table.patch
@@ -1,6 +1,6 @@
 --- a/net/ipv4/netfilter/ip_tables.c
 +++ b/net/ipv4/netfilter/ip_tables.c
-@@ -316,6 +316,33 @@ struct ipt_entry *ipt_next_entry(const s
+@@ -319,6 +319,33 @@ struct ipt_entry *ipt_next_entry(const s
  	return (void *)entry + entry->next_offset;
  }
  
@@ -34,7 +34,7 @@
  /* Returns one of the generic firewall policies, like NF_ACCEPT. */
  unsigned int
  ipt_do_table(struct sk_buff *skb,
-@@ -339,6 +366,23 @@ ipt_do_table(struct sk_buff *skb,
+@@ -342,6 +369,23 @@ ipt_do_table(struct sk_buff *skb,
  	ip = ip_hdr(skb);
  	indev = in ? in->name : nulldevname;
  	outdev = out ? out->name : nulldevname;
@@ -58,7 +58,7 @@
  	/* We handle fragments by dealing with the first fragment as
  	 * if it was a normal packet.  All other fragments are treated
  	 * normally, except that they will NEVER match rules that ask
-@@ -353,17 +397,6 @@ ipt_do_table(struct sk_buff *skb,
+@@ -356,17 +400,6 @@ ipt_do_table(struct sk_buff *skb,
  	acpar.family  = NFPROTO_IPV4;
  	acpar.hooknum = hook;