From: Antonio Quartulli antonio@open-mesh.com
When receiving or sending a packet a packet on a VLAN, the vid has to be marked with the TAG flag in order to make any component in batman-adv understand that the packet is coming from a really tagged network.
This fix the Bridge Loop Avoidance behaviour which was not able to send announces over VLAN interfaces.
Introduced by 0b1da1765fdb00ca5d53bc95c9abc70dfc9aae5b ("batman-adv: change VID semantic in the BLA code")
Signed-off-by: Antonio Quartulli antonio@open-mesh.org Acked-by: Simon Wunderlich siwu@hrz.tu-chemnitz.de Signed-off-by: Marek Lindner mareklindner@neomailbox.ch --- net/batman-adv/soft-interface.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c index 4493913..813db4e 100644 --- a/net/batman-adv/soft-interface.c +++ b/net/batman-adv/soft-interface.c @@ -168,6 +168,7 @@ static int batadv_interface_tx(struct sk_buff *skb, case ETH_P_8021Q: vhdr = (struct vlan_ethhdr *)skb->data; vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; + vid |= BATADV_VLAN_HAS_TAG;
if (vhdr->h_vlan_encapsulated_proto != ethertype) break; @@ -331,6 +332,7 @@ void batadv_interface_rx(struct net_device *soft_iface, case ETH_P_8021Q: vhdr = (struct vlan_ethhdr *)skb->data; vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK; + vid |= BATADV_VLAN_HAS_TAG;
if (vhdr->h_vlan_encapsulated_proto != ethertype) break;