patches/0003-batman-adv_do_not_add_TEMP_clients_belonging_to_other_backbone_nodes.patch

   1 From ordex@autistici.org Fri Nov 16 16:49:17 2012
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  38 From: Antonio Quartulli <ordex@autistici.org>
  39 To: davem@davemloft.net
  40 Cc: netdev@vger.kernel.org,
  41  Simon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>,
  42  Marek Lindner <lindner_marek@yahoo.de>,
  43  Sven Eckelmann <sven@narfation.org>,
  44  Antonio Quartulli <ordex@autistici.org>
  45 Subject: [PATCH] batman-adv: don't add TEMP clients belonging to other backbone nodes
  46 Date: Fri, 16 Nov 2012 09:49:17 +0100
  47 Message-Id: <1353055758-2901-4-git-send-email-ordex@autistici.org>
  48 X-Mailer: git-send-email 1.8.0
  49 In-Reply-To: <1353055758-2901-1-git-send-email-ordex@autistici.org>
  50 References: <1353055758-2901-1-git-send-email-ordex@autistici.org>
  51 Status: R
  52 X-Status: N
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  56
  57 The "early client detection" mechanism must not add clients belonging
  58 to other backbone nodes. Such clients must be reached by directly
  59 using the LAN instead of the mesh.
  60
  61 This was introduced by 30cfd02b60e1cb16f5effb0a01f826c5bb7e4c59
  62 ("batman-adv: detect not yet announced clients")
  63
  64 Reported-by: Glen Page <glen.page@thet.net>
  65 Signed-off-by: Antonio Quartulli <ordex@autistici.org>
  66 Signed-off-by: Marek Lindner <lindner_marek@yahoo.de>
  67 ---
  68  net/batman-adv/translation-table.c | 7 +++++++
  69  1 file changed, 7 insertions(+)
  70
  71 diff --git a/translation-table.c b/translation-table.c
  72 index fec1a00..baae715 100644
  73 --- a/translation-table.c
  74 +++ b/translation-table.c
  75 @@ -2456,6 +2456,13 @@ bool batadv_tt_add_temporary_global_entry(struct batadv_priv *bat_priv,
  76  {
  77         bool ret = false;
  78
  79 +       /* if the originator is a backbone node (meaning it belongs to the same
  80 +        * LAN of this node) the temporary client must not be added because to
  81 +        * reach such destination the node must use the LAN instead of the mesh
  82 +        */
  83 +       if (batadv_bla_is_backbone_gw_orig(bat_priv, orig_node->orig))
  84 +               goto out;
  85 +
  86         if (!batadv_tt_global_add(bat_priv, orig_node, addr,
  87                                   BATADV_TT_CLIENT_TEMP,
  88                                   atomic_read(&orig_node->last_ttvn)))
  89 --
  90 1.8.0
  91