From: Marek Lindner <mareklind...@neomailbox.ch>
Signed-off-by: Marek Lindner <mareklind...@neomailbox.ch>
Reviewed-by: Sven Eckelmann <s...@narfation.org>
Signed-off-by: Antonio Quartulli <a...@unstable.cc>
---
net/batman-adv/soft-interface.c | 8 ++++----
1 file changed, 4 insertions(+), 4 deletions(-)
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 3a0fc3c18444..343d2c904399 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -186,7 +186,6 @@ static int batadv_interface_tx(struct sk_buff *skb,
struct batadv_priv *bat_priv = netdev_priv(soft_iface);
struct batadv_hard_iface *primary_if = NULL;
struct batadv_bcast_packet *bcast_packet;
- __be16 ethertype = htons(ETH_P_BATMAN);
static const u8 stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00,
0x00, 0x00};
static const u8 ectp_addr[ETH_ALEN] = {0xCF, 0x00, 0x00, 0x00,
@@ -216,7 +215,8 @@ static int batadv_interface_tx(struct sk_buff *skb,
case ETH_P_8021Q:
vhdr = vlan_eth_hdr(skb);
- if (vhdr->h_vlan_encapsulated_proto != ethertype) {
+ /* drop batman-in-batman packets to prevent loops */
+ if (vhdr->h_vlan_encapsulated_proto != htons(ETH_P_BATMAN)) {
network_offset += VLAN_HLEN;
break;
}
@@ -404,7 +404,6 @@ void batadv_interface_rx(struct net_device *soft_iface,
{
struct batadv_bcast_packet *batadv_bcast_packet;
struct batadv_priv *bat_priv = netdev_priv(soft_iface);
- __be16 ethertype = htons(ETH_P_BATMAN);
struct vlan_ethhdr *vhdr;
struct ethhdr *ethhdr;
unsigned short vid;
@@ -434,7 +433,8 @@ void batadv_interface_rx(struct net_device *soft_iface,
vhdr = (struct vlan_ethhdr *)skb->data;
- if (vhdr->h_vlan_encapsulated_proto != ethertype)
+ /* drop batman-in-batman packets to prevent loops */
+ if (vhdr->h_vlan_encapsulated_proto != htons(ETH_P_BATMAN))
break;
/* fall through */
--
2.8.2
