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| author | Marek Lindner <lindner_marek@yahoo.de> | 2012-03-11 06:17:49 +0800 |
|---|---|---|
| committer | Antonio Quartulli <ordex@autistici.org> | 2012-05-11 13:55:59 +0200 |
| commit | edbf12ba56c4578f62a1357e005bcf11c2c38a16 (patch) | |
| tree | c73a280a2905cf8f521fc8d0dd5d26104189f3e5 /net/batman-adv | |
| parent | 7ae8b2852f946c71fdbd910156baa605a4ae3cee (diff) | |
| download | linux-edbf12ba56c4578f62a1357e005bcf11c2c38a16.tar.gz linux-edbf12ba56c4578f62a1357e005bcf11c2c38a16.tar.bz2 linux-edbf12ba56c4578f62a1357e005bcf11c2c38a16.zip | |
batman-adv: ignore protocol packets if the interface did not enable this protocol
Reported-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Diffstat (limited to 'net/batman-adv')
| -rw-r--r-- | net/batman-adv/bat_iv_ogm.c | 7 |
1 files changed, 7 insertions, 0 deletions
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; |