From e30ebf29ca8970990c0b574f72774ea1ad183de4 Mon Sep 17 00:00:00 2001
From: Nicolas Thill <nico@openwrt.org>
Date: Sun, 3 May 2009 16:34:02 +0000
Subject: [PATCH] netfilter: add a check for ip proto in
 netfilter_match_speedup patches (closes: #5041)

SVN-Revision: 15574
---
 .../patches-2.6.28/110-netfilter_match_speedup.patch     | 9 ++++++---
 .../patches-2.6.29/110-netfilter_match_speedup.patch     | 9 ++++++---
 .../patches-2.6.30/110-netfilter_match_speedup.patch     | 9 ++++++---
 3 files changed, 18 insertions(+), 9 deletions(-)

diff --git a/target/linux/generic-2.6/patches-2.6.28/110-netfilter_match_speedup.patch b/target/linux/generic-2.6/patches-2.6.28/110-netfilter_match_speedup.patch
index a8a49ec65e..2bdbe0703d 100644
--- a/target/linux/generic-2.6/patches-2.6.28/110-netfilter_match_speedup.patch
+++ b/target/linux/generic-2.6/patches-2.6.28/110-netfilter_match_speedup.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,
-@@ -151,13 +154,32 @@ ip_packet_match(const struct iphdr *ip,
+@@ -151,13 +154,35 @@ ip_packet_match(const struct iphdr *ip,
  		return false;
  	}
  
@@ -45,6 +45,9 @@
 +		IPT_INV_VIA_OUT))
 +		goto has_match_rules;
 +
++	if (FWINV(ip->proto, IPT_INV_PROTO))
++		goto has_match_rules;
++
 +	if (FWINV(ip->flags&IPT_F_FRAG, IPT_INV_FRAG))
 +		goto has_match_rules;
 +
@@ -55,7 +58,7 @@
  		duprintf("Unknown flag bits set: %08X\n",
  			 ip->flags & ~IPT_F_MASK);
  		return false;
-@@ -167,6 +189,8 @@ ip_checkentry(const struct ipt_ip *ip)
+@@ -167,6 +192,8 @@ ip_checkentry(const struct ipt_ip *ip)
  			 ip->invflags & ~IPT_INV_MASK);
  		return false;
  	}
@@ -64,7 +67,7 @@
  	return true;
  }
  
-@@ -214,7 +238,6 @@ unconditional(const struct ipt_ip *ip)
+@@ -214,7 +241,6 @@ unconditional(const struct ipt_ip *ip)
  			return 0;
  
  	return 1;
diff --git a/target/linux/generic-2.6/patches-2.6.29/110-netfilter_match_speedup.patch b/target/linux/generic-2.6/patches-2.6.29/110-netfilter_match_speedup.patch
index fddf81c3e7..5bb51bad03 100644
--- a/target/linux/generic-2.6/patches-2.6.29/110-netfilter_match_speedup.patch
+++ b/target/linux/generic-2.6/patches-2.6.29/110-netfilter_match_speedup.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,
-@@ -147,13 +150,32 @@ ip_packet_match(const struct iphdr *ip,
+@@ -147,13 +150,35 @@ ip_packet_match(const struct iphdr *ip,
  		return false;
  	}
  
@@ -45,6 +45,9 @@
 +		IPT_INV_VIA_OUT))
 +		goto has_match_rules;
 +
++	if (FWINV(ip->proto, IPT_INV_PROTO))
++		goto has_match_rules;
++
 +	if (FWINV(ip->flags&IPT_F_FRAG, IPT_INV_FRAG))
 +		goto has_match_rules;
 +
@@ -55,7 +58,7 @@
  		duprintf("Unknown flag bits set: %08X\n",
  			 ip->flags & ~IPT_F_MASK);
  		return false;
-@@ -163,6 +185,8 @@ ip_checkentry(const struct ipt_ip *ip)
+@@ -163,6 +188,8 @@ ip_checkentry(const struct ipt_ip *ip)
  			 ip->invflags & ~IPT_INV_MASK);
  		return false;
  	}
@@ -64,7 +67,7 @@
  	return true;
  }
  
-@@ -210,7 +234,6 @@ unconditional(const struct ipt_ip *ip)
+@@ -210,7 +237,6 @@ unconditional(const struct ipt_ip *ip)
  			return 0;
  
  	return 1;
diff --git a/target/linux/generic-2.6/patches-2.6.30/110-netfilter_match_speedup.patch b/target/linux/generic-2.6/patches-2.6.30/110-netfilter_match_speedup.patch
index 22f0a4341c..be15d349cf 100644
--- a/target/linux/generic-2.6/patches-2.6.30/110-netfilter_match_speedup.patch
+++ b/target/linux/generic-2.6/patches-2.6.30/110-netfilter_match_speedup.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,
-@@ -137,13 +140,32 @@ ip_packet_match(const struct iphdr *ip,
+@@ -137,13 +140,35 @@ ip_packet_match(const struct iphdr *ip,
  		return false;
  	}
  
@@ -45,6 +45,9 @@
 +		IPT_INV_VIA_OUT))
 +		goto has_match_rules;
 +
++	if (FWINV(ip->proto, IPT_INV_PROTO))
++		goto has_match_rules;
++
 +	if (FWINV(ip->flags&IPT_F_FRAG, IPT_INV_FRAG))
 +		goto has_match_rules;
 +
@@ -55,7 +58,7 @@
  		duprintf("Unknown flag bits set: %08X\n",
  			 ip->flags & ~IPT_F_MASK);
  		return false;
-@@ -153,6 +175,8 @@ ip_checkentry(const struct ipt_ip *ip)
+@@ -153,6 +178,8 @@ ip_checkentry(const struct ipt_ip *ip)
  			 ip->invflags & ~IPT_INV_MASK);
  		return false;
  	}
@@ -64,7 +67,7 @@
  	return true;
  }
  
-@@ -200,7 +224,6 @@ unconditional(const struct ipt_ip *ip)
+@@ -200,7 +227,6 @@ unconditional(const struct ipt_ip *ip)
  			return 0;
  
  	return 1;