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authornbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-07-30 15:39:52 +0000
committernbd <nbd@3c298f89-4303-0410-b956-a3cf2f4a3e73>2011-07-30 15:39:52 +0000
commitaafcea0542d73fdaf32cbfa3eb3908aebf524717 (patch)
tree25bf0d429e1cb222d3a048a2716e58341e9e7bd4 /target/linux/generic/patches-3.0/612-netfilter_match_reduce_memory_access.patch
parentcaaa4b18a0b6ec555682ff0c9641bd242e78ec2a (diff)
kernel: add a new version of my netfilter speedup patches for linux 2.6.39 and 3.0
git-svn-id: svn://svn.openwrt.org/openwrt/trunk@27840 3c298f89-4303-0410-b956-a3cf2f4a3e73
Diffstat (limited to 'target/linux/generic/patches-3.0/612-netfilter_match_reduce_memory_access.patch')
-rw-r--r--target/linux/generic/patches-3.0/612-netfilter_match_reduce_memory_access.patch16
1 files changed, 16 insertions, 0 deletions
diff --git a/target/linux/generic/patches-3.0/612-netfilter_match_reduce_memory_access.patch b/target/linux/generic/patches-3.0/612-netfilter_match_reduce_memory_access.patch
new file mode 100644
index 000000000..817b37efd
--- /dev/null
+++ b/target/linux/generic/patches-3.0/612-netfilter_match_reduce_memory_access.patch
@@ -0,0 +1,16 @@
+--- a/net/ipv4/netfilter/ip_tables.c
++++ b/net/ipv4/netfilter/ip_tables.c
+@@ -84,9 +84,11 @@ ip_packet_match(const struct iphdr *ip,
+ if (ipinfo->flags & IPT_F_NO_DEF_MATCH)
+ return true;
+
+- if (FWINV((ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr,
++ if (FWINV(ipinfo->smsk.s_addr &&
++ (ip->saddr&ipinfo->smsk.s_addr) != ipinfo->src.s_addr,
+ IPT_INV_SRCIP) ||
+- FWINV((ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr,
++ FWINV(ipinfo->smsk.s_addr &&
++ (ip->daddr&ipinfo->dmsk.s_addr) != ipinfo->dst.s_addr,
+ IPT_INV_DSTIP)) {
+ dprintf("Source or dest mismatch.\n");
+