Currently the bridge drops all STP pkgs when STP is off. This makes the bridge relay the Bridge Group multicast address, 01:80:c2:00:00:00, when STP is off. This allows for loop detection by other bridges doing STP. Signed-off-by: Joakim Tjernlund <Joakim.Tjernlund@xxxxxxxxxxxx> --- V2: - Use compare_ether_address() - Invert if logic, hopefully easier to read? net/bridge/br_input.c | 4 +++- 1 files changed, 3 insertions(+), 1 deletions(-) diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c index 30b8877..0bd175c 100644 --- a/net/bridge/br_input.c +++ b/net/bridge/br_input.c @@ -137,7 +137,9 @@ struct sk_buff *br_handle_frame(struct net_bridge_port *p, struct sk_buff *skb) if (NF_HOOK(PF_BRIDGE, NF_BR_LOCAL_IN, skb, skb->dev, NULL, br_handle_local_finish)) return NULL; /* frame consumed by filter */ - else + /* Relay Bridge Group address if STP is off */ + if (p->br->stp_enabled != BR_NO_STP || + compare_ether_addr(dest, br_group_address)) return skb; /* continue processing */ } -- 1.6.2.3 _______________________________________________ Bridge mailing list Bridge@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/bridge
