batman-adv/patches/0008-batman-adv-Fix-speedy-join-in-gateway-client-mode.patch

   1 From: Sven Eckelmann <sven@narfation.org>
   2 Date: Sun, 12 Jun 2016 10:43:19 +0200
   3 Subject: [PATCH] batman-adv: Fix speedy join in gateway client mode
   4
   5 Speedy join only works when the received packet is either broadcast or an
   6 4addr unicast packet. Thus packets converted from broadcast to unicast via
   7 the gateway handling code have to be converted to 4addr packets to allow
   8 the receiving gateway server to add the sender address as temporary entry
   9 to the translation table.
  10
  11 Not doing it will make the batman-adv gateway server drop the DHCP response
  12 in many situations because it doesn't yet have the TT entry for the
  13 destination of the DHCP response.
  14
  15 Fixes: 9cbc67d9da47 ("batman-adv: change interface_rx to get orig node")
  16 Signed-off-by: Sven Eckelmann <sven@narfation.org>
  17 ---
  18  net/batman-adv/send.c | 4 ++--
  19  1 file changed, 2 insertions(+), 2 deletions(-)
  20
  21 diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
  22 index f2f1256..0103976 100644
  23 --- a/net/batman-adv/send.c
  24 +++ b/net/batman-adv/send.c
  25 @@ -424,8 +424,8 @@ int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
  26         struct batadv_orig_node *orig_node;
  27
  28         orig_node = batadv_gw_get_selected_orig(bat_priv);
  29 -       return batadv_send_skb_unicast(bat_priv, skb, BATADV_UNICAST, 0,
  30 -                                      orig_node, vid);
  31 +       return batadv_send_skb_unicast(bat_priv, skb, BATADV_UNICAST_4ADDR,
  32 +                                      BATADV_P_DATA, orig_node, vid);
  33  }
  34
  35  void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface)