netdev - [PATCH net-next 11/23] netfilter: flowtable: add bridge vlan filtering support

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Message-Id: <20210311003604.22199-12-pablo@netfilter.org>
Date:   Thu, 11 Mar 2021 01:35:52 +0100
From:   Pablo Neira Ayuso <pablo@...filter.org>
To:     netfilter-devel@...r.kernel.org
Cc:     davem@...emloft.net, netdev@...r.kernel.org, kuba@...nel.org,
        Felix Fietkau <nbd@....name>
Subject: [PATCH net-next 11/23] netfilter: flowtable: add bridge vlan filtering support

Add the vlan tag based when PVID is set on.

Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nft_flow_offload.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/net/netfilter/nft_flow_offload.c b/net/netfilter/nft_flow_offload.c
index 8392b1a8108b..651364d93efd 100644
--- a/net/netfilter/nft_flow_offload.c
+++ b/net/netfilter/nft_flow_offload.c
@@ -111,6 +111,18 @@ static void nft_dev_path_info(const struct net_device_path_stack *stack,
 			if (is_zero_ether_addr(info->h_source))
 				memcpy(info->h_source, path->dev->dev_addr, ETH_ALEN);
 
+			switch (path->bridge.vlan_mode) {
+			case DEV_PATH_BR_VLAN_TAG:
+				info->encap[info->num_encaps].id = path->bridge.vlan_id;
+				info->encap[info->num_encaps].proto = path->bridge.vlan_proto;
+				info->num_encaps++;
+				break;
+			case DEV_PATH_BR_VLAN_UNTAG:
+				info->num_encaps--;
+				break;
+			case DEV_PATH_BR_VLAN_KEEP:
+				break;
+			}
 			info->xmit_type = FLOW_OFFLOAD_XMIT_DIRECT;
 			break;
 		default:
-- 
2.20.1