netdev - [PATCH net-next 19/23] netfilter: flowtable: support for FLOW_ACTION_PPPOE

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Message-Id: <20210311003604.22199-20-pablo@netfilter.org>
Date:   Thu, 11 Mar 2021 01:36:00 +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 19/23] netfilter: flowtable: support for FLOW_ACTION_PPPOE_PUSH

Add a PPPoE push action if layer 2 protocol is ETH_P_PPP_SES to add
PPPoE flowtable hardware offload support.

Signed-off-by: Pablo Neira Ayuso <pablo@...filter.org>
---
 net/netfilter/nf_flow_table_offload.c | 15 ++++++++++++---
 1 file changed, 12 insertions(+), 3 deletions(-)

diff --git a/net/netfilter/nf_flow_table_offload.c b/net/netfilter/nf_flow_table_offload.c
index 796f46463457..7d6526c571d4 100644
--- a/net/netfilter/nf_flow_table_offload.c
+++ b/net/netfilter/nf_flow_table_offload.c
@@ -598,9 +598,18 @@ nf_flow_rule_route_common(struct net *net, const struct flow_offload *flow,
 			continue;
 
 		entry = flow_action_entry_next(flow_rule);
-		entry->id = FLOW_ACTION_VLAN_PUSH;
-		entry->vlan.vid = other_tuple->encap[i].id;
-		entry->vlan.proto = other_tuple->encap[i].proto;
+
+		switch (other_tuple->encap[i].proto) {
+		case htons(ETH_P_PPP_SES):
+			entry->id = FLOW_ACTION_PPPOE_PUSH;
+			entry->pppoe.sid = other_tuple->encap[i].id;
+			break;
+		case htons(ETH_P_8021Q):
+			entry->id = FLOW_ACTION_VLAN_PUSH;
+			entry->vlan.vid = other_tuple->encap[i].id;
+			entry->vlan.proto = other_tuple->encap[i].proto;
+			break;
+		}
 	}
 
 	return 0;
-- 
2.20.1