From 706bf4f44c6d2ae2fdeefeb816b2c35a173ecfa4 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Asbj=C3=B8rn=20Sloth=20T=C3=B8nnesen?= <ast@fiberby.net>
Date: Sat, 13 Jul 2024 02:19:09 +0000
Subject: [PATCH] flow_dissector: set encapsulation control flags for non-IP
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Make sure to set encapsulated control flags also for non-IP
packets, such that it's possible to allow matching on e.g.
TUNNEL_OAM on a geneve packet carrying a non-IP packet.
Suggested-by: Davide Caratti <dcaratti@redhat.com>
Signed-off-by: Asbjørn Sloth Tønnesen <ast@fiberby.net>
Tested-by: Davide Caratti <dcaratti@redhat.com>
Reviewed-by: Davide Caratti <dcaratti@redhat.com>
Link: https://patch.msgid.link/20240713021911.1631517-13-ast@fiberby.net
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
---
net/core/flow_dissector.c | 4 ++++
net/sched/cls_flower.c | 3 ++-
2 files changed, 6 insertions(+), 1 deletion(-)
diff --git a/net/core/flow_dissector.c b/net/core/flow_dissector.c
index 1a9ca129fddde..ada1e39b557e0 100644
--- a/net/core/flow_dissector.c
+++ b/net/core/flow_dissector.c
@@ -434,6 +434,10 @@ skb_flow_dissect_tunnel_info(const struct sk_buff *skb,
ipv6->dst = key->u.ipv6.dst;
}
break;
+ default:
+ skb_flow_dissect_set_enc_control(0, ctrl_flags, flow_dissector,
+ target_container);
+ break;
}
if (dissector_uses_key(flow_dissector, FLOW_DISSECTOR_KEY_ENC_KEYID)) {
diff --git a/net/sched/cls_flower.c b/net/sched/cls_flower.c
index 897d6b683cc6f..38b2df387c1e1 100644
--- a/net/sched/cls_flower.c
+++ b/net/sched/cls_flower.c
@@ -2199,7 +2199,8 @@ static void fl_init_dissector(struct flow_dissector *dissector,
FL_KEY_SET_IF_MASKED(mask, keys, cnt,
FLOW_DISSECTOR_KEY_ENC_IPV6_ADDRS, enc_ipv6);
if (FL_KEY_IS_MASKED(mask, enc_ipv4) ||
- FL_KEY_IS_MASKED(mask, enc_ipv6))
+ FL_KEY_IS_MASKED(mask, enc_ipv6) ||
+ FL_KEY_IS_MASKED(mask, enc_control))
FL_KEY_SET(keys, cnt, FLOW_DISSECTOR_KEY_ENC_CONTROL,
enc_control);
FL_KEY_SET_IF_MASKED(mask, keys, cnt,
--
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