From 59221041095c2b83205caab3dbabc94d7a6f32f9 Mon Sep 17 00:00:00 2001 From: Antonio Quartulli Date: Wed, 11 Sep 2013 19:14:44 +0200 Subject: [PATCH 4/4] batman-adv: set the TAG flag for the vid passed to BLA 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 Acked-by: Simon Wunderlich Signed-off-by: Marek Lindner --- soft-interface.c | 2 ++ 1 file changed, 2 insertions(+) diff --git a/soft-interface.c b/soft-interface.c index 0f04e1c..33b6144 100644 --- a/soft-interface.c +++ b/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; @@ -329,6 +330,7 @@ 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; -- 1.8.4.rc3