[PATCH 08/14] batman-adv: ignore protocol packets if the interface did not enable this protocol
From: Antonio Quartulli <hidden>
Date: 2012-05-09 11:12:43
Also in:
batman
Subsystem:
batman advanced, the rest · Maintainers:
Marek Lindner, Simon Wunderlich, Antonio Quartulli, Sven Eckelmann, Linus Torvalds
From: Marek Lindner <redacted> Reported-by: Simon Wunderlich <redacted> Signed-off-by: Marek Lindner <redacted> Signed-off-by: Antonio Quartulli <redacted> --- net/batman-adv/bat_iv_ogm.c | 6 ++++++ 1 file changed, 6 insertions(+)
diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c
index 4baabf9..689fc98 100644
--- a/net/batman-adv/bat_iv_ogm.c
+++ b/net/batman-adv/bat_iv_ogm.c@@ -1186,6 +1186,7 @@ out: static int bat_iv_ogm_receive(struct sk_buff *skb, struct hard_iface *if_incoming) { + struct bat_priv *bat_priv = netdev_priv(if_incoming->soft_iface); struct batman_ogm_packet *batman_ogm_packet; struct ethhdr *ethhdr; int buff_pos = 0, packet_len;
@@ -1196,6 +1197,11 @@ static int bat_iv_ogm_receive(struct sk_buff *skb, if (!ret) return NET_RX_DROP; + /* did we receive a B.A.T.M.A.N. IV OGM packet on an interface + * that does not have B.A.T.M.A.N. IV enabled ? */ + if (bat_priv->bat_algo_ops->bat_ogm_emit != bat_iv_ogm_emit) + return NET_RX_DROP; + packet_len = skb_headlen(skb); ethhdr = (struct ethhdr *)skb_mac_header(skb); packet_buff = skb->data;
--
1.7.9.4