netdev - [PATCH net-next 4/5] selftests: tc-testing: cleanup on Ctrl-C

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Message-Id: <20231124154248.315470-5-pctammela@mojatatu.com>
Date: Fri, 24 Nov 2023 12:42:47 -0300
From: Pedro Tammela <pctammela@...atatu.com>
To: netdev@...r.kernel.org
Cc: jhs@...atatu.com,
	xiyou.wangcong@...il.com,
	jiri@...nulli.us,
	davem@...emloft.net,
	kuba@...nel.org,
	pabeni@...hat.com,
	edumazet@...gle.com,
	linux-kselftest@...r.kernel.org,
	bpf@...r.kernel.org,
	llvm@...ts.linux.dev,
	Pedro Tammela <pctammela@...atatu.com>
Subject: [PATCH net-next 4/5] selftests: tc-testing: cleanup on Ctrl-C

Cleanup net namespaces and other resources if we get a SIGINT (Ctrl-C).
As user visible resources are allocated on a per test basis, it's only
required to catch this condition when (possibly) running tests.

So far calling post_suite is enough to free up anything that might
linger.

A missing keyword replacement for nsPlugin is also included.

Signed-off-by: Pedro Tammela <pctammela@...atatu.com>
---
 tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py | 2 +-
 tools/testing/selftests/tc-testing/tdc.py                 | 6 +++++-
 2 files changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py b/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py
index dc7a0597cf44..77b1106b8388 100644
--- a/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py
+++ b/tools/testing/selftests/tc-testing/plugin-lib/nsPlugin.py
@@ -78,7 +78,7 @@ class SubPlugin(TdcPlugin):
             print('{}.post_suite'.format(self.sub_class))
 
         # Make sure we don't leak resources
-        cmd = "$IP -a netns del"
+        cmd = self._replace_keywords("$IP -a netns del")
 
         if self.args.verbose > 3:
             print('_exec_cmd:  command "{}"'.format(cmd))
diff --git a/tools/testing/selftests/tc-testing/tdc.py b/tools/testing/selftests/tc-testing/tdc.py
index c5ec861687b6..caeacc691587 100755
--- a/tools/testing/selftests/tc-testing/tdc.py
+++ b/tools/testing/selftests/tc-testing/tdc.py
@@ -1018,7 +1018,11 @@ def main():
     if args.verbose > 2:
         print('args is {}'.format(args))
 
-    set_operation_mode(pm, parser, args, remaining)
+    try:
+        set_operation_mode(pm, parser, args, remaining)
+    except KeyboardInterrupt:
+        # Cleanup on Ctrl-C
+        pm.call_post_suite(None)
 
 if __name__ == "__main__":
     main()
-- 
2.40.1