On Sat, Aug 17, 2024 at 11:38:48AM -0700, Jakub Kicinski wrote:
> A few tests check if nettest exists in the $PATH before adding
> $PWD to $PATH and re-checking. They don't discard stderr on
> the first check (and nettest is built as part of selftests,
> so it's pretty normal for it to not be available in system $PATH).
> This leads to output noise:
>
> which: no nettest in (/home/virtme/tools/fs/bin:/home/virtme/tools/fs/sbin:/home/virtme/tools/fs/usr/bin:/home/virtme/tools/fs/usr/sbin:/bin:/sbin:/usr/bin:/usr/sbin:/usr/local/bin)
>
> Add a common helper for the check which does silence stderr.
>
> There is another small functional change hiding here, because pmtu.sh
> used to return from the test case rather than completely exit.
> Building nettest is not hard, there should be no need to maintain
> the ability to selectively skip cases in its absence.
>
> Signed-off-by: Jakub Kicinski <kuba@xxxxxxxxxx>
> ---
> CC: shuah@xxxxxxxxxx
> CC: linux-kselftest@xxxxxxxxxxxxxxx
> ---
> tools/testing/selftests/net/fcnal-test.sh | 9 +--------
> tools/testing/selftests/net/lib.sh | 15 +++++++++++++++
> tools/testing/selftests/net/pmtu.sh | 8 +-------
> tools/testing/selftests/net/settings | 1 +
> tools/testing/selftests/net/unicast_extensions.sh | 9 +--------
> 5 files changed, 19 insertions(+), 23 deletions(-)
Nice improvement. fib_rule_tests.sh can also benefit from this helper
and so does vrf_route_leaking.sh which assumes 'nettest' is available
in the working directory.
Do you want to fold the diff below into v2 (I tested it)?
diff --git a/tools/testing/selftests/net/fib_rule_tests.sh b/tools/testing/selftests/net/fib_rule_tests.sh
index ec9dbfa6507b..1d58b3b87465 100755
--- a/tools/testing/selftests/net/fib_rule_tests.sh
+++ b/tools/testing/selftests/net/fib_rule_tests.sh
@@ -51,31 +51,6 @@ log_test()
fi
}
-check_nettest()
-{
- if which nettest > /dev/null 2>&1; then
- return 0
- fi
-
- # Add the selftest directory to PATH if not already done
- if [ "${SELFTEST_PATH}" = "" ]; then
- SELFTEST_PATH="$(dirname $0)"
- PATH="${PATH}:${SELFTEST_PATH}"
-
- # Now retry with the new path
- if which nettest > /dev/null 2>&1; then
- return 0
- fi
-
- if [ "${ret}" -eq 0 ]; then
- ret="${ksft_skip}"
- fi
- echo "nettest not found (try 'make -C ${SELFTEST_PATH} nettest')"
- fi
-
- return 1
-}
-
setup()
{
set -e
@@ -334,11 +309,6 @@ fib_rule6_connect_test()
echo
echo "IPv6 FIB rule connect tests"
- if ! check_nettest; then
- echo "SKIP: Could not run test without nettest tool"
- return
- fi
-
setup_peer
$IP -6 rule add dsfield 0x04 table $RTABLE_PEER
@@ -578,11 +548,6 @@ fib_rule4_connect_test()
echo
echo "IPv4 FIB rule connect tests"
- if ! check_nettest; then
- echo "SKIP: Could not run test without nettest tool"
- return
- fi
-
setup_peer
$IP -4 rule add dsfield 0x04 table $RTABLE_PEER
@@ -674,6 +639,8 @@ if [ ! -x "$(command -v ip)" ]; then
exit $ksft_skip
fi
+check_gen_prog "nettest"
+
# start clean
cleanup &> /dev/null
setup
diff --git a/tools/testing/selftests/net/vrf_route_leaking.sh b/tools/testing/selftests/net/vrf_route_leaking.sh
index 152171fb1fc8..e9c2f71da207 100755
--- a/tools/testing/selftests/net/vrf_route_leaking.sh
+++ b/tools/testing/selftests/net/vrf_route_leaking.sh
@@ -59,7 +59,6 @@
# while it is forwarded between different vrfs.
source lib.sh
-PATH=$PWD:$PWD/tools/testing/selftests/net:$PATH
VERBOSE=0
PAUSE_ON_FAIL=no
DEFAULT_TTYPE=sym
@@ -636,6 +635,8 @@ EOF
# Some systems don't have a ping6 binary anymore
command -v ping6 > /dev/null 2>&1 && ping6=$(command -v ping6) || ping6=$(command -v ping)
+check_gen_prog "nettest"
+
TESTS_IPV4="ipv4_ping_ttl ipv4_traceroute ipv4_ping_frag ipv4_ping_local ipv4_tcp_local
ipv4_udp_local ipv4_ping_ttl_asym ipv4_traceroute_asym"
TESTS_IPV6="ipv6_ping_ttl ipv6_traceroute ipv6_ping_local ipv6_tcp_local ipv6_udp_local
