OpenWrt – Rev 4

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From c6905cfdeb31a5c049db3da434b10fa0d3e83569 Mon Sep 17 00:00:00 2001
From: Felix Fietkau <nbd@nbd.name>
Date: Fri, 7 Jul 2017 17:18:54 +0200
Subject: 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>
---
 net/bridge/br_input.c | 7 +++++--
 1 file changed, 5 insertions(+), 2 deletions(-)

--- a/net/bridge/br_input.c
+++ b/net/bridge/br_input.c
@@ -110,10 +110,14 @@ 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;
        BR_INPUT_SKB_CB(skb)->src_port_isolated = !!(p->flags & BR_ISOLATED);
 
        if (IS_ENABLED(CONFIG_INET) &&