network: do more strict message type checking

This patch adds more strict checking in the message type. We add a
new message type NET_T_CTL for control messages.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>

1 files changed, 1 insertions, 1 deletions

diff --git a/src/network.c b/src/network.c
index 34992ec..98df5ea 100644
--- a/src/network.c
+++ b/src/network.c
@@ -58,7 +58,7 @@ void nethdr_set(struct nethdr *net, int type)
 
 void nethdr_set_ack(struct nethdr *net)
 {
-	__nethdr_set(net, NETHDR_ACK_SIZ, 0);
+	__nethdr_set(net, NETHDR_ACK_SIZ, NET_T_CTL);
 }
 
 static size_t tx_buflenmax;