Commit 4c18c425b2d228415b635e97a64737d7f27c5536

Authored by Antonio Quartulli
Committed by Antonio Quartulli
1 parent 1ef68ec462

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 <antonio@open-mesh.org>
Acked-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de>
Signed-off-by: Marek Lindner <mareklindner@neomailbox.ch>

Showing 1 changed file with 2 additions and 0 deletions Side-by-side Diff

net/batman-adv/soft-interface.c
... ... @@ -168,6 +168,7 @@
168 168 case ETH_P_8021Q:
169 169 vhdr = (struct vlan_ethhdr *)skb->data;
170 170 vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
  171 + vid |= BATADV_VLAN_HAS_TAG;
171 172  
172 173 if (vhdr->h_vlan_encapsulated_proto != ethertype)
173 174 break;
... ... @@ -331,6 +332,7 @@
331 332 case ETH_P_8021Q:
332 333 vhdr = (struct vlan_ethhdr *)skb->data;
333 334 vid = ntohs(vhdr->h_vlan_TCI) & VLAN_VID_MASK;
  335 + vid |= BATADV_VLAN_HAS_TAG;
334 336  
335 337 if (vhdr->h_vlan_encapsulated_proto != ethertype)
336 338 break;