[3/4] batman-adv: don't add TEMP clients belonging to other backbone nodes

Message ID 1353055758-2901-4-git-send-email-ordex@autistici.org
State Accepted, archived
Delegated to: David Miller
Headers show

Commit Message

Antonio Quartulli Nov. 16, 2012, 8:49 a.m.
The "early client detection" mechanism must not add clients belonging
to other backbone nodes. Such clients must be reached by directly
using the LAN instead of the mesh.

This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
("batman-adv: detect not yet announced clients")

Reported-by: Glen Page <glen.page@thet.net>
Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
 net/batman-adv/translation-table.c | 7 +++++++
 1 file changed, 7 insertions(+)


diff --git a/net/batman-adv/translation-table.c b/net/batman-adv/translation-table.c
index fec1a00..baae715 100644
--- a/net/batman-adv/translation-table.c
+++ b/net/batman-adv/translation-table.c
@@ -2456,6 +2456,13 @@  bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
 	bool ret = false;
+	/* if the originator is a backbone node (meaning it belongs to the same
+	 * LAN of this node) the temporary client must not be added because to
+	 * reach such destination the node must use the LAN instead of the mesh
+	 */
+	if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
+		goto out;
 	if (!batadv_tt_global_add(bat_priv, orig_node, addr,