From: Po-Hsu Lin <po-hsu.lin@canonical.com>
To: netdev@vger.kernel.org, linux-kselftest@vger.kernel.org,
linux-kernel@vger.kernel.org
Cc: davem@davemloft.net, kuba@kernel.org, shuah@kernel.org,
steffen.klassert@secunet.com, fw@strlen.de
Subject: [PATCH] selftests: xfrm: fix test return value override issue in xfrm_policy.sh
Date: Wed, 30 Dec 2020 17:52:04 +0800 [thread overview]
Message-ID: <20201230095204.21467-1-po-hsu.lin@canonical.com> (raw)
When running this xfrm_policy.sh test script, even with some cases
marked as FAIL, the overall test result will still be PASS:
$ sudo ./xfrm_policy.sh
PASS: policy before exception matches
FAIL: expected ping to .254 to fail (exceptions)
PASS: direct policy matches (exceptions)
PASS: policy matches (exceptions)
FAIL: expected ping to .254 to fail (exceptions and block policies)
PASS: direct policy matches (exceptions and block policies)
PASS: policy matches (exceptions and block policies)
FAIL: expected ping to .254 to fail (exceptions and block policies after hresh changes)
PASS: direct policy matches (exceptions and block policies after hresh changes)
PASS: policy matches (exceptions and block policies after hresh changes)
FAIL: expected ping to .254 to fail (exceptions and block policies after hthresh change in ns3)
PASS: direct policy matches (exceptions and block policies after hthresh change in ns3)
PASS: policy matches (exceptions and block policies after hthresh change in ns3)
FAIL: expected ping to .254 to fail (exceptions and block policies after htresh change to normal)
PASS: direct policy matches (exceptions and block policies after htresh change to normal)
PASS: policy matches (exceptions and block policies after htresh change to normal)
PASS: policies with repeated htresh change
$ echo $?
0
This is because the $lret in check_xfrm() is not a local variable.
Therefore when a test failed in check_exceptions(), the non-zero $lret
will later get reset to 0 when the next test calls check_xfrm().
With this fix, the final return value will be 1. Make it easier for
testers to spot this failure.
Fixes: 39aa6928d462d0 ("xfrm: policy: fix netlink/pf_key policy lookups")
Signed-off-by: Po-Hsu Lin <po-hsu.lin@canonical.com>
---
tools/testing/selftests/net/xfrm_policy.sh | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/tools/testing/selftests/net/xfrm_policy.sh b/tools/testing/selftests/net/xfrm_policy.sh
index 7a1bf94..5922941 100755
--- a/tools/testing/selftests/net/xfrm_policy.sh
+++ b/tools/testing/selftests/net/xfrm_policy.sh
@@ -202,7 +202,7 @@ check_xfrm() {
# 1: iptables -m policy rule count != 0
rval=$1
ip=$2
- lret=0
+ local lret=0
ip netns exec ns1 ping -q -c 1 10.0.2.$ip > /dev/null
--
2.7.4
next reply other threads:[~2020-12-30 9:52 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2020-12-30 9:52 Po-Hsu Lin [this message]
2020-12-30 12:58 ` [PATCH] selftests: xfrm: fix test return value override issue in xfrm_policy.sh Florian Westphal
2021-01-05 8:11 ` Steffen Klassert
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