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| author | Stefano Brivio <sbrivio@redhat.com> | 2018-03-17 04:31:43 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-03-18 03:15:14 +0300 |
| commit | 35b49424b8a49edb6de6e7ec54bd8edb568031c2 (patch) | |
| tree | 6616f620204f82933a6669d6b67bafd3ae5aa87b /tools | |
| parent | a41c789bdcc1e3d8fe0d82ee80c22aa4f4508004 (diff) | |
| download | linux-35b49424b8a49edb6de6e7ec54bd8edb568031c2.tar.xz | |
selftests: pmtu: Add pmtu_vti6_default_mtu test
Same as pmtu_vti4_default_mtu, but on IPv6 with vti6.
Signed-off-by: Stefano Brivio <sbrivio@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'tools')
| -rwxr-xr-x | tools/testing/selftests/net/pmtu.sh | 18 |
1 files changed, 17 insertions, 1 deletions
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 |