netdev - [PATCH net-next 2/3] net: flow_offload: Add original direction flag to ct

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Message-Id: <1611757967-18236-3-git-send-email-paulb@nvidia.com>
Date:   Wed, 27 Jan 2021 16:32:46 +0200
From:   Paul Blakey <paulb@...dia.com>
To:     Paul Blakey <paulb@...dia.com>, netdev@...r.kernel.org,
        Jamal Hadi Salim <jhs@...atatu.com>,
        "David S. Miller" <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Cong Wang <xiyou.wangcong@...il.com>
Cc:     Vlad Buslov <vladbu@...dia.com>, Oz Shlomo <ozsh@...dia.com>,
        Roi Dayan <roid@...dia.com>, Jiri Pirko <jiri@...dia.com>,
        Saeed Mahameed <saeedm@...dia.com>
Subject: [PATCH net-next 2/3] net: flow_offload: Add original direction flag to ct_metadata

Give offloading drivers the direction of the offloaded ct flow,
this will be used for matches on direction (ct_state +/-rpl).

Signed-off-by: Paul Blakey <paulb@...dia.com>
Reviewed-by: Jiri Pirko <jiri@...dia.com>
---
 include/net/flow_offload.h | 1 +
 net/sched/act_ct.c         | 1 +
 2 files changed, 2 insertions(+)

diff --git a/include/net/flow_offload.h b/include/net/flow_offload.h
index 123b1e9..e6bd8eb 100644
--- a/include/net/flow_offload.h
+++ b/include/net/flow_offload.h
@@ -245,6 +245,7 @@ struct flow_action_entry {
 			unsigned long cookie;
 			u32 mark;
 			u32 labels[4];
+			bool orig_dir;
 		} ct_metadata;
 		struct {				/* FLOW_ACTION_MPLS_PUSH */
 			u32		label;
diff --git a/net/sched/act_ct.c b/net/sched/act_ct.c
index b344207..f0a0aa1 100644
--- a/net/sched/act_ct.c
+++ b/net/sched/act_ct.c
@@ -183,6 +183,7 @@ static void tcf_ct_flow_table_add_action_meta(struct nf_conn *ct,
 					     IP_CT_ESTABLISHED_REPLY;
 	/* aligns with the CT reference on the SKB nf_ct_set */
 	entry->ct_metadata.cookie = (unsigned long)ct | ctinfo;
+	entry->ct_metadata.orig_dir = dir == IP_CT_DIR_ORIGINAL;
 
 	act_ct_labels = entry->ct_metadata.labels;
 	ct_labels = nf_ct_labels_find(ct);
-- 
1.8.3.1