[PATCHv2 0/2] selftests: pmtu.sh: improve the test result processing

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Po-Hsu Lin

10 Nov 2020 10 Nov '20

2 a.m.

The pmtu.sh test script treats all non-zero return code as a failure, thus it will be marked as FAILED when some sub-test got skipped.

This patchset will: 1. Use the kselftest framework skip code $ksft_skip to replace the hardcoded SKIP return code. 2. Improve the result processing, the test will be marked as PASSED if nothing goes wrong and not all the tests were skipped.

Po-Hsu Lin (2): selftests: pmtu.sh: use $ksft_skip for skipped return code selftests: pmtu.sh: improve the test result processing

tools/testing/selftests/net/pmtu.sh | 79 +++++++++++++++++++++---------------- 1 file changed, 46 insertions(+), 33 deletions(-)

-- 2.7.4

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Po-Hsu Lin

10 Nov 10 Nov

2 a.m.

New subject: [PATCHv2 1/2] selftests: pmtu.sh: use $ksft_skip for skipped return code

This test uses return code 2 as a hard-coded skipped state, let's use the kselftest framework skip code variable $ksft_skip instead to make it more readable and easier to maintain.

Signed-off-by: Po-Hsu Lin po-hsu.lin@canonical.com --- tools/testing/selftests/net/pmtu.sh | 64 ++++++++++++++++++------------------- 1 file changed, 32 insertions(+), 32 deletions(-)

diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh index 6bbf69a..fb53987 100755 --- a/tools/testing/selftests/net/pmtu.sh +++ b/tools/testing/selftests/net/pmtu.sh @@ -355,7 +355,7 @@ setup_fou_or_gue() { encap="${3}"

if [ "${outer}" = "4" ]; then - modprobe fou || return 2 + modprobe fou || return $ksft_skip a_addr="${prefix4}.${a_r1}.1" b_addr="${prefix4}.${b_r1}.1" if [ "${inner}" = "4" ]; then @@ -366,7 +366,7 @@ setup_fou_or_gue() { ipproto="41" fi else - modprobe fou6 || return 2 + modprobe fou6 || return $ksft_skip a_addr="${prefix6}:${a_r1}::1" b_addr="${prefix6}:${b_r1}::1" if [ "${inner}" = "4" ]; then @@ -380,8 +380,8 @@ setup_fou_or_gue() { fi fi

- run_cmd ${ns_a} ip fou add port 5555 ipproto ${ipproto} || return 2 - run_cmd ${ns_a} ip link add ${encap}_a type ${type} ${mode} local ${a_addr} remote ${b_addr} encap ${encap} encap-sport auto encap-dport 5556 || return 2 + run_cmd ${ns_a} ip fou add port 5555 ipproto ${ipproto} || return $ksft_skip + run_cmd ${ns_a} ip link add ${encap}_a type ${type} ${mode} local ${a_addr} remote ${b_addr} encap ${encap} encap-sport auto encap-dport 5556 || return $ksft_skip

run_cmd ${ns_b} ip fou add port 5556 ipproto ${ipproto} run_cmd ${ns_b} ip link add ${encap}_b type ${type} ${mode} local ${b_addr} remote ${a_addr} encap ${encap} encap-sport auto encap-dport 5555 @@ -455,7 +455,7 @@ setup_ipvX_over_ipvY() { fi fi

- run_cmd ${ns_a} ip link add ip_a type ${type} local ${a_addr} remote ${b_addr} mode ${mode} || return 2 + run_cmd ${ns_a} ip link add ip_a type ${type} local ${a_addr} remote ${b_addr} mode ${mode} || return $ksft_skip run_cmd ${ns_b} ip link add ip_b type ${type} local ${b_addr} remote ${a_addr} mode ${mode}

run_cmd ${ns_a} ip link set ip_a up @@ -713,7 +713,7 @@ setup_routing() { }

setup_bridge() { - run_cmd ${ns_a} ip link add br0 type bridge || return 2 + run_cmd ${ns_a} ip link add br0 type bridge || return $ksft_skip run_cmd ${ns_a} ip link set br0 up

run_cmd ${ns_c} ip link add veth_C-A type veth peer name veth_A-C @@ -765,7 +765,7 @@ setup_ovs_vxlan6() { }

setup_ovs_bridge() { - run_cmd ovs-vsctl add-br ovs_br0 || return 2 + run_cmd ovs-vsctl add-br ovs_br0 || return $ksft_skip run_cmd ip link set ovs_br0 up

run_cmd ${ns_c} ip link add veth_C-A type veth peer name veth_A-C @@ -887,7 +887,7 @@ check_pmtu_value() { test_pmtu_ipvX() { family=${1}

- setup namespaces routing || return 2 + setup namespaces routing || return $ksft_skip trace "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \ "${ns_r1}" veth_R1-B "${ns_b}" veth_B-R1 \ "${ns_a}" veth_A-R2 "${ns_r2}" veth_R2-A \ @@ -985,11 +985,11 @@ test_pmtu_ipvX_over_vxlanY_or_geneveY_exception() { ll_mtu=4000

if [ ${outer_family} -eq 4 ]; then - setup namespaces routing ${type}4 || return 2 + setup namespaces routing ${type}4 || return $ksft_skip # IPv4 header UDP header VXLAN/GENEVE header Ethernet header exp_mtu=$((${ll_mtu} - 20 - 8 - 8 - 14)) else - setup namespaces routing ${type}6 || return 2 + setup namespaces routing ${type}6 || return $ksft_skip # IPv6 header UDP header VXLAN/GENEVE header Ethernet header exp_mtu=$((${ll_mtu} - 40 - 8 - 8 - 14)) fi @@ -1060,11 +1060,11 @@ test_pmtu_ipvX_over_bridged_vxlanY_or_geneveY_exception() { ll_mtu=4000

if [ ${outer_family} -eq 4 ]; then - setup namespaces routing bridge bridged_${type}4 || return 2 + setup namespaces routing bridge bridged_${type}4 || return $ksft_skip # IPv4 header UDP header VXLAN/GENEVE header Ethernet header exp_mtu=$((${ll_mtu} - 20 - 8 - 8 - 14)) else - setup namespaces routing bridge bridged_${type}6 || return 2 + setup namespaces routing bridge bridged_${type}6 || return $ksft_skip # IPv6 header UDP header VXLAN/GENEVE header Ethernet header exp_mtu=$((${ll_mtu} - 40 - 8 - 8 - 14)) fi @@ -1144,11 +1144,11 @@ test_pmtu_ipvX_over_ovs_vxlanY_or_geneveY_exception() { ll_mtu=4000

if [ ${outer_family} -eq 4 ]; then - setup namespaces routing ovs_bridge ovs_${type}4 || return 2 + setup namespaces routing ovs_bridge ovs_${type}4 || return $ksft_skip # IPv4 header UDP header VXLAN/GENEVE header Ethernet header exp_mtu=$((${ll_mtu} - 20 - 8 - 8 - 14)) else - setup namespaces routing ovs_bridge ovs_${type}6 || return 2 + setup namespaces routing ovs_bridge ovs_${type}6 || return $ksft_skip # IPv6 header UDP header VXLAN/GENEVE header Ethernet header exp_mtu=$((${ll_mtu} - 40 - 8 - 8 - 14)) fi @@ -1230,7 +1230,7 @@ test_pmtu_ipvX_over_fouY_or_gueY() { encap=${3} ll_mtu=4000

- setup namespaces routing ${encap}${outer_family}${inner_family} || return 2 + setup namespaces routing ${encap}${outer_family}${inner_family} || return $ksft_skip trace "${ns_a}" ${encap}_a "${ns_b}" ${encap}_b \ "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \ "${ns_b}" veth_B-R1 "${ns_r1}" veth_R1-B @@ -1309,7 +1309,7 @@ test_pmtu_ipvX_over_ipvY_exception() { outer=${2} ll_mtu=4000

- setup namespaces routing ip${inner}ip${outer} || return 2 + setup namespaces routing ip${inner}ip${outer} || return $ksft_skip

trace "${ns_a}" ip_a "${ns_b}" ip_b \ "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \ @@ -1363,7 +1363,7 @@ test_pmtu_ipv6_ipv6_exception() { }

test_pmtu_vti4_exception() { - setup namespaces veth vti4 xfrm4 || return 2 + setup namespaces veth vti4 xfrm4 || return $ksft_skip trace "${ns_a}" veth_a "${ns_b}" veth_b \ "${ns_a}" vti4_a "${ns_b}" vti4_b

@@ -1393,7 +1393,7 @@ test_pmtu_vti4_exception() { }

test_pmtu_vti6_exception() { - setup namespaces veth vti6 xfrm6 || return 2 + setup namespaces veth vti6 xfrm6 || return $ksft_skip trace "${ns_a}" veth_a "${ns_b}" veth_b \ "${ns_a}" vti6_a "${ns_b}" vti6_b fail=0 @@ -1423,7 +1423,7 @@ test_pmtu_vti6_exception() { }

test_pmtu_vti4_default_mtu() { - setup namespaces veth vti4 || return 2 + setup namespaces veth vti4 || return $ksft_skip

# Check that MTU of vti device is MTU of veth minus IPv4 header length veth_mtu="$(link_get_mtu "${ns_a}" veth_a)" @@ -1435,7 +1435,7 @@ test_pmtu_vti4_default_mtu() { }

test_pmtu_vti6_default_mtu() { - setup namespaces veth vti6 || return 2 + setup namespaces veth vti6 || return $ksft_skip

# Check that MTU of vti device is MTU of veth minus IPv6 header length veth_mtu="$(link_get_mtu "${ns_a}" veth_a)" @@ -1447,10 +1447,10 @@ test_pmtu_vti6_default_mtu() { }

test_pmtu_vti4_link_add_mtu() { - setup namespaces || return 2 + setup namespaces || return $ksft_skip

run_cmd ${ns_a} ip link add vti4_a type vti local ${veth4_a_addr} remote ${veth4_b_addr} key 10 - [ $? -ne 0 ] && err " vti not supported" && return 2 + [ $? -ne 0 ] && err " vti not supported" && return $ksft_skip run_cmd ${ns_a} ip link del vti4_a

fail=0 @@ -1485,10 +1485,10 @@ test_pmtu_vti4_link_add_mtu() { }

test_pmtu_vti6_link_add_mtu() { - setup namespaces || return 2 + setup namespaces || return $ksft_skip

run_cmd ${ns_a} ip link add vti6_a type vti6 local ${veth6_a_addr} remote ${veth6_b_addr} key 10 - [ $? -ne 0 ] && err " vti6 not supported" && return 2 + [ $? -ne 0 ] && err " vti6 not supported" && return $ksft_skip run_cmd ${ns_a} ip link del vti6_a

fail=0 @@ -1523,10 +1523,10 @@ test_pmtu_vti6_link_add_mtu() { }

test_pmtu_vti6_link_change_mtu() { - setup namespaces || return 2 + setup namespaces || return $ksft_skip

run_cmd ${ns_a} ip link add dummy0 mtu 1500 type dummy - [ $? -ne 0 ] && err " dummy not supported" && return 2 + [ $? -ne 0 ] && err " dummy not supported" && return $ksft_skip run_cmd ${ns_a} ip link add dummy1 mtu 3000 type dummy run_cmd ${ns_a} ip link set dummy0 up run_cmd ${ns_a} ip link set dummy1 up @@ -1579,10 +1579,10 @@ test_cleanup_vxlanX_exception() { encap="vxlan" ll_mtu=4000

- check_command taskset || return 2 + check_command taskset || return $ksft_skip cpu_list=$(grep -m 2 processor /proc/cpuinfo | cut -d ' ' -f 2)

- setup namespaces routing ${encap}${outer} || return 2 + setup namespaces routing ${encap}${outer} || return $ksft_skip trace "${ns_a}" ${encap}_a "${ns_b}" ${encap}_b \ "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \ "${ns_b}" veth_B-R1 "${ns_r1}" veth_R1-B @@ -1644,7 +1644,7 @@ run_test() { fi err_flush exit 1 - elif [ $ret -eq 2 ]; then + elif [ $ret -eq $ksft_skip ]; then printf "TEST: %-60s [SKIP]\n" "${tdesc}" err_flush fi @@ -1667,7 +1667,7 @@ run_test_nh() { }

test_list_flush_ipv4_exception() { - setup namespaces routing || return 2 + setup namespaces routing || return $ksft_skip trace "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \ "${ns_r1}" veth_R1-B "${ns_b}" veth_B-R1 \ "${ns_a}" veth_A-R2 "${ns_r2}" veth_R2-A \ @@ -1721,7 +1721,7 @@ test_list_flush_ipv4_exception() { }

test_list_flush_ipv6_exception() { - setup namespaces routing || return 2 + setup namespaces routing || return $ksft_skip trace "${ns_a}" veth_A-R1 "${ns_r1}" veth_R1-A \ "${ns_r1}" veth_R1-B "${ns_b}" veth_B-R1 \ "${ns_a}" veth_A-R2 "${ns_r2}" veth_R2-A \ @@ -1840,7 +1840,7 @@ for t in ${tests}; do if [ $run_this -eq 1 ]; then run_test "${name}" "${desc}" # if test was skipped no need to retry with nexthop objects - [ $? -eq 2 ] && rerun_nh=0 + [ $? -eq $ksft_skip ] && rerun_nh=0

if [ "${rerun_nh}" = "1" ]; then run_test_nh "${name}" "${desc}"

-- 2.7.4

Po-Hsu Lin

2 a.m.

New subject: [PATCHv2 2/2] selftests: pmtu.sh: improve the test result processing

This test will treat all non-zero return codes as failures, it will make the pmtu.sh test script being marked as FAILED when some sub-test got skipped.

Improve the result processing by * Only mark the whole test script as SKIP when all of the sub-tests were skipped * If the sub-tests were either passed or skipped, the overall result will be PASS * If any of them has failed with return code 1 or anything bad happened (e.g. return code 127 for command not found), the overall result will be FAIL

Signed-off-by: Po-Hsu Lin po-hsu.lin@canonical.com --- tools/testing/selftests/net/pmtu.sh | 15 ++++++++++++++- 1 file changed, 14 insertions(+), 1 deletion(-)

diff --git a/tools/testing/selftests/net/pmtu.sh b/tools/testing/selftests/net/pmtu.sh index fb53987..464e31e 100755 --- a/tools/testing/selftests/net/pmtu.sh +++ b/tools/testing/selftests/net/pmtu.sh @@ -1652,7 +1652,19 @@ run_test() { return $ret ) ret=$? - [ $ret -ne 0 ] && exitcode=1 + case $ret in + 0) + all_skipped=false + [ $exitcode=$ksft_skip ] && exitcode=0 + ;; + $ksft_skip) + [ $all_skipped = true ] && exitcode=$ksft_skip + ;; + *) + all_skipped=false + exitcode=1 + ;; + esac

return $ret } @@ -1786,6 +1798,7 @@ usage() { # exitcode=0 desc=0 +all_skipped=true

while getopts :ptv o do

-- 2.7.4

Jakub Kicinski

12 Nov 12 Nov

3:58 p.m.

On Tue, 10 Nov 2020 10:00:47 +0800 Po-Hsu Lin wrote:

...

The pmtu.sh test script treats all non-zero return code as a failure, thus it will be marked as FAILED when some sub-test got skipped.

This patchset will:

Use the kselftest framework skip code $ksft_skip to replace the hardcoded SKIP return code.

Improve the result processing, the test will be marked as PASSED if nothing goes wrong and not all the tests were skipped.

Applied, thank you!

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Jakub Kicinski
Po-Hsu Lin