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authorAntonio Quartulli <antonio@open-mesh.com>2013-11-04 20:59:40 +0100
committerAntonio Quartulli <antonio@meshcoding.com>2014-01-08 20:49:40 +0100
commitf3163181573f3dea264c5ffd578c187aef898bbb (patch)
treee53a9df449acf710a11a8fcaeb5804ddf6fd062e
parentebf38fb7ab18ba60460bbd03de760ad5a2f435eb (diff)
downloadop-kernel-dev-f3163181573f3dea264c5ffd578c187aef898bbb.zip
op-kernel-dev-f3163181573f3dea264c5ffd578c187aef898bbb.tar.gz
batman-adv: deselect current GW on client mode switch off
When switching from gw_mode client to either off or server the current selected gateway has to be deselected. In this way when client mode is enabled again a gateway re-election is forced and a GW_ADD event is consequently sent. The current behaviour instead is to keep the current gateway leading to no GW_ADD event when gw_mode client is selected for a second time Signed-off-by: Antonio Quartulli <antonio@open-mesh.com> Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch> Signed-off-by: Antonio Quartulli <antonio@meshcoding.com>
-rw-r--r--net/batman-adv/gateway_client.c5
-rw-r--r--net/batman-adv/sysfs.c9
2 files changed, 14 insertions, 0 deletions
diff --git a/net/batman-adv/gateway_client.c b/net/batman-adv/gateway_client.c
index 3564173..53a9009 100644
--- a/net/batman-adv/gateway_client.c
+++ b/net/batman-adv/gateway_client.c
@@ -205,6 +205,11 @@ void batadv_gw_check_client_stop(struct batadv_priv *bat_priv)
if (!curr_gw)
return;
+ /* deselect the current gateway so that next time that client mode is
+ * enabled a proper GW_ADD event can be sent
+ */
+ batadv_gw_select(bat_priv, NULL);
+
/* if batman-adv is switching the gw client mode off and a gateway was
* already selected, send a DEL uevent
*/
diff --git a/net/batman-adv/sysfs.c b/net/batman-adv/sysfs.c
index e28f951..b652a56 100644
--- a/net/batman-adv/sysfs.c
+++ b/net/batman-adv/sysfs.c
@@ -406,6 +406,15 @@ static ssize_t batadv_store_gw_mode(struct kobject *kobj,
batadv_info(net_dev, "Changing gw mode from: %s to: %s\n",
curr_gw_mode_str, buff);
+ /* Invoking batadv_gw_reselect() is not enough to really de-select the
+ * current GW. It will only instruct the gateway client code to perform
+ * a re-election the next time that this is needed.
+ *
+ * When gw client mode is being switched off the current GW must be
+ * de-selected explicitly otherwise no GW_ADD uevent is thrown on
+ * client mode re-activation. This is operation is performed in
+ * batadv_gw_check_client_stop().
+ */
batadv_gw_deselect(bat_priv);
/* always call batadv_gw_check_client_stop() before changing the gateway
* state
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