netdev - [PATCH net-next 2/2] selftests: rtnetlink: use a local IP address for IPsec tests

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Message-Id: <1529473363-4036-3-git-send-email-shannon.nelson@oracle.com>
Date:   Tue, 19 Jun 2018 22:42:43 -0700
From:   Shannon Nelson <shannon.nelson@...cle.com>
To:     netdev@...r.kernel.org, davem@...emloft.net,
        anders.roxell@...aro.org
Subject: [PATCH net-next 2/2] selftests: rtnetlink: use a local IP address for IPsec tests

Find an IP address on this machine to use as a source IP, and
make up a destination IP address based on the source IP.  No
actual messages will be sent, just a couple of IPsec rules are
created and deleted.

Fixes: 5e596ee171ba ("selftests: add xfrm state-policy-monitor to rtnetlink.sh")
Reported-by: Anders Roxell <anders.roxell@...aro.org>
Signed-off-by: Shannon Nelson <shannon.nelson@...cle.com>
---
 tools/testing/selftests/net/rtnetlink.sh | 8 ++++++--
 1 file changed, 6 insertions(+), 2 deletions(-)

diff --git a/tools/testing/selftests/net/rtnetlink.sh b/tools/testing/selftests/net/rtnetlink.sh
index 0a2bc6e..b33a371 100755
--- a/tools/testing/selftests/net/rtnetlink.sh
+++ b/tools/testing/selftests/net/rtnetlink.sh
@@ -522,8 +522,12 @@ kci_test_macsec()
 #-------------------------------------------------------------------
 kci_test_ipsec()
 {
-	srcip="14.0.0.52"
-	dstip="14.0.0.70"
+	# find an ip address on this machine and make up a destination
+	srcip=`ip -o addr | awk '/inet / { print $4; }' | grep -v "^127" | head -1 | cut -f1 -d/`
+	net=`echo $srcip | cut -f1-3 -d.`
+	base=`echo $srcip | cut -f4 -d.`
+	dstip="$net."`expr $base + 1`
+
 	algo="aead rfc4106(gcm(aes)) 0x3132333435363738393031323334353664636261 128"
 
 	# flush to be sure there's nothing configured
-- 
2.7.4