[PATCH net-next 5/9] selftests: pmtu: Add pmtu_vti6_default_mtu test
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STALE3142d
SUPERSEDED
From: Stefano Brivio <hidden>
Date: 2018-03-15 16:18:45
Subsystem:
kernel selftest framework, networking [general], the rest · Maintainers:
Shuah Khan, Shuah Khan, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Revision v1 of 2 in this series.
Revisions (2)
- v1 current
- v2 [diff vs current]
Same as pmtu_vti4_default_mtu, but on IPv6 with vti6. Signed-off-by: Stefano Brivio <redacted> --- tools/testing/selftests/net/pmtu.sh | 19 ++++++++++++++++++- 1 file changed, 18 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
index 440d2defe592..67b77f9108ee 100755
--- a/tools/testing/selftests/net/pmtu.sh
+++ b/tools/testing/selftests/net/pmtu.sh@@ -18,8 +18,11 @@ # endpoints. Check that MTU assigned to vti interface is the MTU of the # lower layer (veth) minus additional lower layer headers (zero, for veth) # minus IPv4 header length +# +# - pmtu_vti6_default_mtu +# Same as above, for IPv6 -tests="pmtu_vti6_exception pmtu_vti4_default_mtu" +tests="pmtu_vti6_exception pmtu_vti4_default_mtu pmtu_vti6_default_mtu" NS_A="ns-$(mktemp -u XXXXXX)" NS_B="ns-$(mktemp -u XXXXXX)"
@@ -225,6 +228,20 @@ test_pmtu_vti4_default_mtu() { return 1 } +test_pmtu_vti6_default_mtu() { + setup namespaces veth vti6 && return 2 + + # Check that MTU of vti device is MTU of veth minus IPv6 header length + veth_mtu="$(link_get_mtu "${ns_a}" veth_a)" + vti6_mtu="$(link_get_mtu "${ns_a}" vti6_a)" + if [ $((veth_mtu - vti6_mtu)) -ne 40 ]; then + echo " vti MTU ${vti6_mtu} is not veth MTU ${veth_mtu} minus IPv6 header length" + return 0 + fi + + return 1 +} + trap cleanup EXIT exitcode=0
--
2.15.1