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wifi-3258: Fix bridge client traffic on same wifi interface

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Allow bridging broadcast and multicast traffic within same
bridge port if hairpinmode is enabled for that port.
This fixes the ARP packet between clients on same wifi interface
being dropped.

Signed-off-by: Chaitanya Godavarthi <chaitanya.kiran@netexperience.com>
This commit is contained in:
Chaitanya Godavarthi
2021-08-08 22:04:45 -04:00
committed by Arif
parent 5ef0556406
commit 3531b884c1
1 changed files with 39 additions and 0 deletions
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39
patches/0059-wifi-3258-Fix-bridge-client-traffic-on-same-wifi-interface.patch Normal file
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@@ -0,0 +1,39 @@
From e0c226e8f5cfa6ec3537823685a803b970297005 Mon Sep 17 00:00:00 2001
From: Chaitanya Godavarthi <chaitanya.kiran@netexperience.com>
Date: Sun, 8 Aug 2021 21:38:12 -0400
Subject: [PATCH] wifi-3258: Fix bridge client traffic on same wifi interface
Allow bridging broadcast and multicast traffic within same
bridge port if hairpinmode is enabled for that port.
This fixes the ARP packet between clients on same wifi interface
being dropped.
Signed-off-by: Chaitanya Godavarthi <chaitanya.kiran@netexperience.com>
---
...e-allow-bcast-mcast-same-port-hairpinmode.patch | 14 ++++++++++++++
1 file changed, 14 insertions(+)
create mode 100644 target/linux/ipq807x/patches/112-bridge-allow-bcast-mcast-same-port-hairpinmode.patch
diff --git a/target/linux/ipq807x/patches/112-bridge-allow-bcast-mcast-same-port-hairpinmode.patch b/target/linux/ipq807x/patches/112-bridge-allow-bcast-mcast-same-port-hairpinmode.patch
new file mode 100644
index 0000000000..99989b3067
--- /dev/null
+++ b/target/linux/ipq807x/patches/112-bridge-allow-bcast-mcast-same-port-hairpinmode.patch
@@ -0,0 +1,14 @@
+Index: linux-4.4.60-qsdk-10fd7d14853b7020b804acae690c8acec5d954ce/net/bridge/br_forward.c
+===================================================================
+--- linux-4.4.60-qsdk-10fd7d14853b7020b804acae690c8acec5d954ce.orig/net/bridge/br_forward.c
++++ linux-4.4.60-qsdk-10fd7d14853b7020b804acae690c8acec5d954ce/net/bridge/br_forward.c
+@@ -33,8 +33,7 @@ static inline int should_deliver(const s
+ struct net_bridge_vlan_group *vg;
+
+ vg = nbp_vlan_group_rcu(p);
+- return ((skb->dev != p->dev) || ((p->flags & BR_HAIRPIN_MODE) &&
+- (!is_multicast_ether_addr(eth_hdr(skb)->h_dest)))) &&
++ return ((skb->dev != p->dev) || (p->flags & BR_HAIRPIN_MODE)) &&
+ br_allowed_egress(vg, skb) && p->state == BR_STATE_FORWARDING;
+ }
+
--
2.25.1