When the MAC address of a bridge interface is changed, it cannot communicate
with others. Because Whether or not a packet should be transferred to bridge
interface depends on whether or not dst of a packet is in fdb and is_local=y.
If we change MAC address of a bridge interface, it isn't in fdb.
This patch adds an condition that dst of a packet matches MAC address of
a bridge interface to the conventional condition.
Signed-off-by: Koki Sanagi <sanagi.koki@xxxxxxxxxxxxxx>
---
net/bridge/br_input.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/net/bridge/br_input.c b/net/bridge/br_input.c
index 5a31731..4e5c862 100644
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -94,7 +94,8 @@ int br_handle_frame_finish(struct sk_buff *skb)
skb2 = skb;
br->dev->stats.multicast++;
- } else if ((dst = __br_fdb_get(br, dest)) && dst->is_local) {
+ } else if ((dst = __br_fdb_get(br, dest) && dst->is_local) ||
+ !compare_ether_addr(p->br->dev->dev_addr, dest)) {
skb2 = skb;
/* Do not forward the packet since it's local. */
skb = NULL;
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