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authorAntonio Quartulli <antonio@open-mesh.com>2013-09-11 19:14:44 +0200
committerAntonio Quartulli <antonio@meshcoding.com>2013-09-17 21:15:16 +0200
commit4c18c425b2d228415b635e97a64737d7f27c5536 (patch)
tree796c4d86787a4fbccba7bdac890d3908504aace1
parent1ef68ec462571955f2a667ddf1ffe279848709d7 (diff)
downloadlinux-linaro-stable-4c18c425b2d228415b635e97a64737d7f27c5536.tar.gz
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>
-rw-r--r--net/batman-adv/soft-interface.c2
1 files changed, 2 insertions, 0 deletions
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 4493913f0d5c..813db4e64602 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;