batman-adv: Fix speedy join in gateway client mode

Speedy join only works when the received packet is either broadcast or an
4addr unicast packet. Thus packets converted from broadcast to unicast via
the gateway handling code have to be converted to 4addr packets to allow
the receiving gateway server to add the sender address as temporary entry
to the translation table.

Not doing it will make the batman-adv gateway server drop the DHCP response
in many situations because it doesn't yet have the TT entry for the
destination of the DHCP response.

Signed-off-by: Sven Eckelmann <sven.eckelmann@open-mesh.com>

diff --git a/batman-adv/Makefile b/batman-adv/Makefile
index d222c0b26169a290586e8e9c2d452e99d70782fd..e8334d58f99c5daaa071e87049f0107be2829eca 100644 (file)
--- a/batman-adv/Makefile
+++ b/batman-adv/Makefile
@@ -11,7 +11,7 @@ include $(TOPDIR)/rules.mk
 PKG_NAME:=batman-adv
 
 PKG_VERSION:=2016.1
-PKG_RELEASE:=2
+PKG_RELEASE:=3
 PKG_MD5SUM:=8c8e449009b4d29512d26ee308960bb5
 
 PKG_SOURCE:=$(PKG_NAME)-$(PKG_VERSION).tar.gz

diff --git a/batman-adv/patches/0022-batman-adv-Fix-speedy-join-in-gateway-client-mode.patch b/batman-adv/patches/0022-batman-adv-Fix-speedy-join-in-gateway-client-mode.patch
new file mode 100644 (file)
index 0000000..fa61a1b
--- /dev/null
+++ b/batman-adv/patches/0022-batman-adv-Fix-speedy-join-in-gateway-client-mode.patch
@@ -0,0 +1,35 @@
+From: Sven Eckelmann <sven@narfation.org>
+Date: Sun, 12 Jun 2016 10:43:19 +0200
+Subject: [PATCH] batman-adv: Fix speedy join in gateway client mode
+
+Speedy join only works when the received packet is either broadcast or an
+4addr unicast packet. Thus packets converted from broadcast to unicast via
+the gateway handling code have to be converted to 4addr packets to allow
+the receiving gateway server to add the sender address as temporary entry
+to the translation table.
+
+Not doing it will make the batman-adv gateway server drop the DHCP response
+in many situations because it doesn't yet have the TT entry for the
+destination of the DHCP response.
+
+Fixes: 9cbc67d9da47 ("batman-adv: change interface_rx to get orig node")
+Signed-off-by: Sven Eckelmann <sven@narfation.org>
+---
+ net/batman-adv/send.c | 4 ++--
+ 1 file changed, 2 insertions(+), 2 deletions(-)
+
+diff --git a/net/batman-adv/send.c b/net/batman-adv/send.c
+index 7641785..e5be212 100644
+--- a/net/batman-adv/send.c
++++ b/net/batman-adv/send.c
+@@ -423,8 +423,8 @@ int batadv_send_skb_via_gw(struct batadv_priv *bat_priv, struct sk_buff *skb,
+       struct batadv_orig_node *orig_node;
+ 
+       orig_node = batadv_gw_get_selected_orig(bat_priv);
+-      return batadv_send_skb_unicast(bat_priv, skb, BATADV_UNICAST, 0,
+-                                     orig_node, vid);
++      return batadv_send_skb_unicast(bat_priv, skb, BATADV_UNICAST_4ADDR,
++                                     BATADV_P_DATA, orig_node, vid);
+ }
+ 
+ void batadv_schedule_bat_ogm(struct batadv_hard_iface *hard_iface)