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batman-adv: set the TAG flag for the vid passed to BLA

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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 <[email protected]>
Acked-by: Simon Wunderlich <[email protected]>
Signed-off-by: Marek Lindner <[email protected]>
This commit is contained in:
Antonio Quartulli 2013-09-11 19:14:44 +02:00 • committed by Antonio Quartulli
commit 4c18c425b2
1 changed files with 2 additions and 0 deletions
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2
net/batman-adv/soft-interface.c
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@ -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;