openwrtv4/target/linux/generic/patches-4.9/640-bridge-only-accept-EAP-locally.patch

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From: Felix Fietkau <nbd@nbd.name>
Subject: [PATCH] bridge: only accept EAP locally
When bridging, do not forward EAP frames to other ports, only deliver
them locally, regardless of the state.
Signed-off-by: Felix Fietkau <nbd@nbd.name>
---
--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -163,11 +163,14 @@ int br_handle_frame_finish(struct net *n
}
}
+ BR_INPUT_SKB_CB(skb)->brdev = br->dev;
+
+ if (skb->protocol == htons(ETH_P_PAE))
+ return br_pass_frame_up(skb);
+
if (p->state == BR_STATE_LEARNING)
goto drop;
- BR_INPUT_SKB_CB(skb)->brdev = br->dev;
-
if (IS_ENABLED(CONFIG_INET) && skb->protocol == htons(ETH_P_ARP))
br_do_proxy_arp(skb, br, vid, p);