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authorSimon Wunderlich <simon.wunderlich@s2003.tu-chemnitz.de>2012-01-22 20:00:25 +0100
committerAntonio Quartulli <ordex@autistici.org>2012-04-11 14:28:59 +0200
commitb1a8c04b8af74158e006b92a9e7e0f619e1a9409 (patch)
treeadef581f143ddcd055313574a1f5b650a3521686 /net/batman-adv
parentfe2da6ff27c73c1d102ec2189f94e8bc729d1a9b (diff)
batman-adv: drop STP over batman
Signed-off-by: Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by: Antonio Quartulli <ordex@autistici.org>
Diffstat (limited to 'net/batman-adv')
-rw-r--r--net/batman-adv/soft-interface.c8
1 files changed, 8 insertions, 0 deletions
diff --git a/net/batman-adv/soft-interface.c b/net/batman-adv/soft-interface.c
index 4d639b303bd..10ab49aa568 100644
--- a/net/batman-adv/soft-interface.c
+++ b/net/batman-adv/soft-interface.c
@@ -130,6 +130,8 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
struct hard_iface *primary_if = NULL;
struct bcast_packet *bcast_packet;
struct vlan_ethhdr *vhdr;
+ static const uint8_t stp_addr[ETH_ALEN] = {0x01, 0x80, 0xC2, 0x00, 0x00,
+ 0x00};
unsigned int header_len = 0;
int data_len = skb->len, ret;
short vid = -1;
@@ -159,6 +161,12 @@ static int interface_tx(struct sk_buff *skb, struct net_device *soft_iface)
/* Register the client MAC in the transtable */
tt_local_add(soft_iface, ethhdr->h_source, skb->skb_iif);
+ /* don't accept stp packets. STP does not help in meshes.
+ * better use the bridge loop avoidance ...
+ */
+ if (compare_eth(ethhdr->h_dest, stp_addr))
+ goto dropped;
+
if (is_multicast_ether_addr(ethhdr->h_dest)) {
do_bcast = true;