[PATCH net-next 06/10 v2] selftests: pmtu: Add pmtu_vti6_default_mtu test
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STALE3144d
From: Stefano Brivio <hidden>
Date: 2018-03-17 01:32:11
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 v2 (2 revisions archived).
Revisions (2)
- v1
- v2 current [diff against previous]
Same as pmtu_vti4_default_mtu, but on IPv6 with vti6.
Signed-off-by: Stefano Brivio <redacted>
---
v2: Adjusted return codes for 4/10, added test description, error
strings now buffered
tools/testing/selftests/net/pmtu.sh | 18 +++++++++++++++++-
1 file changed, 17 insertions(+), 1 deletion(-)
diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh
index be13b3232c12..5d9af22b360a 100755
--- a/tools/testing/selftests/net/pmtu.sh
+++ b/tools/testing/selftests/net/pmtu.sh@@ -18,10 +18,14 @@ # 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 vti6: PMTU exceptions - pmtu_vti4_default_mtu vti4: default MTU assignment" + pmtu_vti4_default_mtu vti4: default MTU assignment + pmtu_vti6_default_mtu vti6: default MTU assignment" NS_A="ns-$(mktemp -u XXXXXX)" NS_B="ns-$(mktemp -u XXXXXX)"
@@ -225,6 +229,18 @@ test_pmtu_vti4_default_mtu() { fi } +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 + err " vti MTU ${vti6_mtu} is not veth MTU ${veth_mtu} minus IPv6 header length" + return 1 + fi +} + trap cleanup EXIT exitcode=0
--
2.15.1