netdev - [PATCH 05/13] netfilter: xt_conntrack: warn about use in raw table

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Date:	Wed,  2 Mar 2011 13:12:45 +0100
From:	kaber@...sh.net
To:	davem@...emloft.net
Cc:	netfilter-devel@...r.kernel.org, netdev@...r.kernel.org
Subject: [PATCH 05/13] netfilter: xt_conntrack: warn about use in raw table

From: Jan Engelhardt <jengelh@...ozas.de>

nfct happens to run after the raw table only.

Signed-off-by: Jan Engelhardt <jengelh@...ozas.de>
Signed-off-by: Patrick McHardy <kaber@...sh.net>
---
 net/netfilter/xt_conntrack.c |    5 +++++
 1 files changed, 5 insertions(+), 0 deletions(-)

diff --git a/net/netfilter/xt_conntrack.c b/net/netfilter/xt_conntrack.c
index 4ef1b63..2c0086a 100644
--- a/net/netfilter/xt_conntrack.c
+++ b/net/netfilter/xt_conntrack.c
@@ -272,6 +272,11 @@ static int conntrack_mt_check(const struct xt_mtchk_param *par)
 {
 	int ret;
 
+	if (strcmp(par->table, "raw") == 0) {
+		pr_info("state is undetermined at the time of raw table\n");
+		return -EINVAL;
+	}
+
 	ret = nf_ct_l3proto_try_module_get(par->family);
 	if (ret < 0)
 		pr_info("cannot load conntrack support for proto=%u\n",
-- 
1.7.4

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