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authorFelix Fietkau <nbd@openwrt.org>2010-03-28 19:05:59 +0000
committerFelix Fietkau <nbd@openwrt.org>2010-03-28 19:05:59 +0000
commit5f89a1f0965739c67e238f707e4c258e4bb13713 (patch)
tree4b3159c27fc8a5db5bdc25114ddd8b10dee93046 /target/linux/generic-2.6/patches-2.6.30
parente4a6acf9b80cd9a9623ce7b697f1fe7455437a76 (diff)
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netfilter: fix ABI breakage caused by the netfilter match optimization (fixes #5628)
SVN-Revision: 20552
Diffstat (limited to 'target/linux/generic-2.6/patches-2.6.30')
-rw-r--r--target/linux/generic-2.6/patches-2.6.30/110-netfilter_match_speedup.patch23
1 files changed, 23 insertions, 0 deletions
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 950a432..926966c 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
@@ -119,3 +119,26 @@
/* For return from builtin chain */
back = get_entry(table_base, private->underflow[hook]);
+@@ -976,6 +1015,7 @@ copy_entries_to_user(unsigned int total_
+ unsigned int i;
+ const struct ipt_entry_match *m;
+ const struct ipt_entry_target *t;
++ u8 flags;
+
+ e = (struct ipt_entry *)(loc_cpu_entry + off);
+ if (copy_to_user(userptr + off
+@@ -986,6 +1026,14 @@ copy_entries_to_user(unsigned int total_
+ goto free_counters;
+ }
+
++ flags = e->ip.flags & ~IPT_F_NO_DEF_MATCH;
++ if (copy_to_user(userptr + off
++ + offsetof(struct ipt_entry, ip.flags),
++ &flags, sizeof(flags)) != 0) {
++ ret = -EFAULT;
++ goto free_counters;
++ }
++
+ for (i = sizeof(struct ipt_entry);
+ i < e->target_offset;
+ i += m->u.match_size) {