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selftests: rtnetlink: use a local IP address for IPsec tests

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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: 5e596ee171 ("selftests: add xfrm state-policy-monitor to rtnetlink.sh")
Reported-by: Anders Roxell <anders.roxell@linaro.org>
Signed-off-by: Shannon Nelson <shannon.nelson@oracle.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Shannon Nelson 2018-06-19 22:42:43 -07:00 committed by David S. Miller
parent 1599b218d5
commit 7000d53b86
1 changed files with 6 additions and 2 deletions
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8
tools/testing/selftests/net/rtnetlink.sh
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@ -525,8 +525,12 @@ 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