netdev - [PATCHv3 net 3/4] selftests: forwarding: lib: add netns support for tc rule handle stats get

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Message-Id: <20230509031200.2152236-4-liuhangbin@gmail.com>
Date: Tue,  9 May 2023 11:11:59 +0800
From: Hangbin Liu <liuhangbin@...il.com>
To: netdev@...r.kernel.org
Cc: Jay Vosburgh <j.vosburgh@...il.com>,
	"David S . Miller" <davem@...emloft.net>,
	Jakub Kicinski <kuba@...nel.org>,
	Paolo Abeni <pabeni@...hat.com>,
	Eric Dumazet <edumazet@...gle.com>,
	Liang Li <liali@...hat.com>,
	Vincent Bernat <vincent@...nat.ch>,
	Simon Horman <simon.horman@...igine.com>,
	Hangbin Liu <liuhangbin@...il.com>
Subject: [PATCHv3 net 3/4] selftests: forwarding: lib: add netns support for tc rule handle stats get

When run the test in netns, it's not easy to get the tc stats via
tc_rule_handle_stats_get(). With the new netns parameter, we can get
stats from specific netns like

  num=$(tc_rule_handle_stats_get "dev eth0 ingress" 101 ".packets" "-n ns")

Signed-off-by: Hangbin Liu <liuhangbin@...il.com>
---
 tools/testing/selftests/net/forwarding/lib.sh | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/forwarding/lib.sh b/tools/testing/selftests/net/forwarding/lib.sh
index 057c3d0ad620..9ddb68dd6a08 100755
--- a/tools/testing/selftests/net/forwarding/lib.sh
+++ b/tools/testing/selftests/net/forwarding/lib.sh
@@ -791,8 +791,9 @@ tc_rule_handle_stats_get()
 	local id=$1; shift
 	local handle=$1; shift
 	local selector=${1:-.packets}; shift
+	local netns=${1:-""}; shift
 
-	tc -j -s filter show $id \
+	tc $netns -j -s filter show $id \
 	    | jq ".[] | select(.options.handle == $handle) | \
 		  .options.actions[0].stats$selector"
 }
-- 
2.38.1