| From | Greg Kroah-Hartman <> | Subject | [ 030/135] batman-adv: set the TAG flag for the vid passed to BLA | Date | Fri, 11 Oct 2013 12:38:31 -0700 |
| |
3.11-stable review patch. If anyone has any objections, please let me know.
------------------
From: Antonio Quartulli <antonio@open-mesh.com>
[ Upstream commit 4c18c425b2d228415b635e97a64737d7f27c5536 ]
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> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> --- net/batman-adv/soft-interface.c | 2 ++ 1 file changed, 2 insertions(+)
--- 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 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_devi 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;
|