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batman-adv: change the MAC of each VLAN upon ndo_set_mac_address

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The MAC address of the soft-interface is used to initialise
the "non-purge" TT entry of each existing VLAN. Therefore
when the user invokes ndo_set_mac_address() all the
"non-purge" TT entries have to be updated, not only the one
belonging to the non-tagged network.

Signed-off-by: Antonio Quartulli <antonio@open-mesh.com>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>
This commit is contained in:
Antonio Quartulli 2014-03-31 13:48:10 +02:00 committed by Antonio Quartulli
parent 7dac6d9391
commit 94d1dd8731
1 changed files with 9 additions and 3 deletions
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12
net/batman-adv/soft-interface.c
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@ -129,6 +129,7 @@ static struct net_device_stats *batadv_interface_stats(struct net_device *dev)
static int batadv_interface_set_mac_addr(struct net_device *dev, void *p)
{
struct batadv_priv *bat_priv = netdev_priv(dev);
struct batadv_softif_vlan *vlan;
struct sockaddr *addr = p;
uint8_t old_addr[ETH_ALEN];
@ -139,12 +140,17 @@ static int batadv_interface_set_mac_addr(struct net_device *dev, void *p)
ether_addr_copy(dev->dev_addr, addr->sa_data);
/* only modify transtable if it has been initialized before */
if (atomic_read(&bat_priv->mesh_state) == BATADV_MESH_ACTIVE) {
batadv_tt_local_remove(bat_priv, old_addr, BATADV_NO_FLAGS,
if (atomic_read(&bat_priv->mesh_state) != BATADV_MESH_ACTIVE)
return 0;
rcu_read_lock();
hlist_for_each_entry_rcu(vlan, &bat_priv->softif_vlan_list, list) {
batadv_tt_local_remove(bat_priv, old_addr, vlan->vid,
"mac address changed", false);
batadv_tt_local_add(dev, addr->sa_data, BATADV_NO_FLAGS,
batadv_tt_local_add(dev, addr->sa_data, vlan->vid,
BATADV_NULL_IFINDEX, BATADV_NO_MARK);
}
rcu_read_unlock();
return 0;
}