[NETFILTER]: iptables 32bit compat layer

This patch extends current iptables compatibility layer in order to get
32bit iptables to work on 64bit kernel. Current layer is insufficient due
to alignment checks both in kernel and user space tools.

Patch is for current net-2.6.17 with addition of move of ipt_entry_{match|
target} definitions to xt_entry_{match|target}.

Signed-off-by: Dmitry Mishin <dim@openvz.org>
Acked-off-by: Kirill Korotaev <dev@openvz.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 1 insertions, 2 deletions

diff --git a/net/compat.c b/net/compat.c
index 8fd37cd7b501..d5d69fa15d07 100644
--- a/net/compat.c
+++ b/net/compat.c
@@ -476,8 +476,7 @@ asmlinkage long compat_sys_setsockopt(int fd, int level, int optname,
         int err;
         struct socket *sock;
 
-        /* SO_SET_REPLACE seems to be the same in all levels */
-        if (optname == IPT_SO_SET_REPLACE)
+        if (level == SOL_IPV6 && optname == IPT_SO_SET_REPLACE)
                 return do_netfilter_replace(fd, level, optname,
                                             optval, optlen);