From: Marek Lindner Date: Sat, 10 Mar 2012 22:17:49 +0000 (+0800) Subject: batman-adv: ignore protocol packets if the interface did not enable this protocol X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=edbf12ba56c4578f62a1357e005bcf11c2c38a16;p=linux-beck.git batman-adv: ignore protocol packets if the interface did not enable this protocol Reported-by: Simon Wunderlich Signed-off-by: Marek Lindner Signed-off-by: Antonio Quartulli --- diff --git a/net/batman-adv/bat_iv_ogm.c b/net/batman-adv/bat_iv_ogm.c index ae0a08c391ea..37e368d05937 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 +1197,12 @@ 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;