diff mbox series

[4.4,32/48] netfilter: nft_reject_bridge: enable reject with bridge vlan

Message ID 20200601174002.056829859@linuxfoundation.org
State New
Headers show
Series None | expand

Commit Message

Greg KH June 1, 2020, 5:53 p.m. UTC 
From: Michael Braun <michael-dev@fami-braun.de>

commit e9c284ec4b41c827f4369973d2792992849e4fa5 upstream.

Currently, using the bridge reject target with tagged packets
results in untagged packets being sent back.

Fix this by mirroring the vlan id as well.

Fixes: 85f5b3086a04 ("netfilter: bridge: add reject support")
Signed-off-by: Michael Braun <michael-dev@fami-braun.de>
Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

---
 net/bridge/netfilter/nft_reject_bridge.c |    6 ++++++
 1 file changed, 6 insertions(+)
diff mbox series

Patch

--- a/net/bridge/netfilter/nft_reject_bridge.c
+++ b/net/bridge/netfilter/nft_reject_bridge.c
@@ -35,6 +35,12 @@  static void nft_reject_br_push_etherhdr(
 	ether_addr_copy(eth->h_dest, eth_hdr(oldskb)->h_source);
 	eth->h_proto = eth_hdr(oldskb)->h_proto;
 	skb_pull(nskb, ETH_HLEN);
+
+	if (skb_vlan_tag_present(oldskb)) {
+		u16 vid = skb_vlan_tag_get(oldskb);
+
+		__vlan_hwaccel_put_tag(nskb, oldskb->vlan_proto, vid);
+	}
 }
 
 /* We cannot use oldskb->dev, it can be either bridge device (NF_BRIDGE INPUT)