netdev - [PATCH iproute2-next] tc: flower: add tc conntrack inv ct

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Date:   Tue, 19 Jan 2021 16:34:59 +0800
From:   wenxu@...oud.cn
To:     marcelo.leitner@...il.com, dsahern@...il.com
Cc:     netdev@...r.kernel.org
Subject: [PATCH iproute2-next] tc: flower: add tc conntrack inv ct_state support

From: wenxu <wenxu@...oud.cn>

Matches on conntrack inv ct_state.

Signed-off-by: wenxu <wenxu@...oud.cn>
---
 include/uapi/linux/pkt_cls.h | 1 +
 man/man8/tc-flower.8         | 2 ++
 tc/f_flower.c                | 1 +
 3 files changed, 4 insertions(+)

diff --git a/include/uapi/linux/pkt_cls.h b/include/uapi/linux/pkt_cls.h
index ee95f42..709668e 100644
--- a/include/uapi/linux/pkt_cls.h
+++ b/include/uapi/linux/pkt_cls.h
@@ -591,6 +591,7 @@ enum {
 	TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED = 1 << 1, /* Part of an existing connection. */
 	TCA_FLOWER_KEY_CT_FLAGS_RELATED = 1 << 2, /* Related to an established connection. */
 	TCA_FLOWER_KEY_CT_FLAGS_TRACKED = 1 << 3, /* Conntrack has occurred. */
+	TCA_FLOWER_KEY_CT_FLAGS_INVALID = 1 << 4, /* Conntrack is invalid. */
 };
 
 enum {
diff --git a/man/man8/tc-flower.8 b/man/man8/tc-flower.8
index 1a76b37..8de68d1 100644
--- a/man/man8/tc-flower.8
+++ b/man/man8/tc-flower.8
@@ -387,6 +387,8 @@ new - New connection.
 .TP
 est - Established connection.
 .TP
+inv - The packet is associated with no known connection.
+.TP
 Example: +trk+est
 .RE
 .TP
diff --git a/tc/f_flower.c b/tc/f_flower.c
index 1fe0ef4..489c0d7 100644
--- a/tc/f_flower.c
+++ b/tc/f_flower.c
@@ -345,6 +345,7 @@ static struct flower_ct_states {
 	{ "trk", TCA_FLOWER_KEY_CT_FLAGS_TRACKED },
 	{ "new", TCA_FLOWER_KEY_CT_FLAGS_NEW },
 	{ "est", TCA_FLOWER_KEY_CT_FLAGS_ESTABLISHED },
+	{ "inv", TCA_FLOWER_KEY_CT_FLAGS_INVALID},
 };
 
 static int flower_parse_ct_state(char *str, struct nlmsghdr *n)
-- 
1.8.3.1