Repository : ssh://git@open-mesh.org/batman-adv
On branch : maint
commit a636bf0b69010222ea58337d425ca9ff8ce52639 Author: Antonio Quartulli a@unstable.cc Date: Mon May 2 18:27:38 2016 +0800
batman-adv: make sure ELP/OGM orig MAC is updated on address change
When the MAC address of the primary interface is changed, update the originator address in the ELP and OGM skb buffers as well in order to reflect the change.
Fixes: a4b88af77e28 ("batman-adv: ELP - adding basic infrastructure") Reported-by: Marek Lindner marek@neomailbox.ch Signed-off-by: Antonio Quartulli a@unstable.cc Signed-off-by: Marek Lindner mareklindner@neomailbox.ch
a636bf0b69010222ea58337d425ca9ff8ce52639 net/batman-adv/bat_v.c | 26 ++++++++++++++++++++++---- 1 file changed, 22 insertions(+), 4 deletions(-)
diff --git a/net/batman-adv/bat_v.c b/net/batman-adv/bat_v.c index 4026f19..4547fce 100644 --- a/net/batman-adv/bat_v.c +++ b/net/batman-adv/bat_v.c @@ -72,16 +72,34 @@ static void batadv_v_iface_disable(struct batadv_hard_iface *hard_iface) batadv_v_elp_iface_disable(hard_iface); }
-static void batadv_v_iface_update_mac(struct batadv_hard_iface *hard_iface) -{ -} - static void batadv_v_primary_iface_set(struct batadv_hard_iface *hard_iface) { batadv_v_elp_primary_iface_set(hard_iface); batadv_v_ogm_primary_iface_set(hard_iface); }
+/** + * batadv_v_iface_update_mac - react to hard-interface MAC address change + * @hard_iface: the modified interface + * + * If the modified interface is the primary one, update the originator + * address in the ELP and OGM messages to reflect the new MAC address. + */ +static void batadv_v_iface_update_mac(struct batadv_hard_iface *hard_iface) +{ + struct batadv_priv *bat_priv = netdev_priv(hard_iface->soft_iface); + struct batadv_hard_iface *primary_if; + + primary_if = batadv_primary_if_get_selected(bat_priv); + if (primary_if != hard_iface) + goto out; + + batadv_v_primary_iface_set(hard_iface); +out: + if (primary_if) + batadv_hardif_put(primary_if); +} + static void batadv_v_hardif_neigh_init(struct batadv_hardif_neigh_node *hardif_neigh) {