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Message-ID: <62bc95f3-8d8c-6dd3-2064-18c1a931cec6@cumulusnetworks.com>
Date: Thu, 28 May 2020 11:53:54 +0300
From: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
To: David Ahern <dsahern@...nel.org>, netdev@...r.kernel.org,
kuba@...nel.org, davem@...emloft.net
Subject: Re: [PATCH net-next] selftests: Add torture tests to nexthop tests
On 28/05/2020 03:03, David Ahern wrote:
> Add Nik's torture tests as a new set to stress the replace and cleanup
> paths.
>
> Torture test created by Nikolay Aleksandrov and then I adapted to
> selftest and added IPv6 version.
>
> Signed-off-by: David Ahern <dsahern@...nel.org>
> ---
> tools/testing/selftests/net/fib_nexthops.sh | 115 +++++++++++++++++++-
> 1 file changed, 113 insertions(+), 2 deletions(-)
>
Signed-off-by: Nikolay Aleksandrov <nikolay@...ulusnetworks.com>
> diff --git a/tools/testing/selftests/net/fib_nexthops.sh b/tools/testing/selftests/net/fib_nexthops.sh
> index 1e2f61262e4e..dee567f7576a 100755
> --- a/tools/testing/selftests/net/fib_nexthops.sh
> +++ b/tools/testing/selftests/net/fib_nexthops.sh
> @@ -19,8 +19,8 @@ ret=0
> ksft_skip=4
>
> # all tests in this script. Can be overridden with -t option
> -IPV4_TESTS="ipv4_fcnal ipv4_grp_fcnal ipv4_withv6_fcnal ipv4_fcnal_runtime ipv4_large_grp ipv4_compat_mode ipv4_fdb_grp_fcnal"
> -IPV6_TESTS="ipv6_fcnal ipv6_grp_fcnal ipv6_fcnal_runtime ipv6_large_grp ipv6_compat_mode ipv6_fdb_grp_fcnal"
> +IPV4_TESTS="ipv4_fcnal ipv4_grp_fcnal ipv4_withv6_fcnal ipv4_fcnal_runtime ipv4_large_grp ipv4_compat_mode ipv4_fdb_grp_fcnal ipv4_torture"
> +IPV6_TESTS="ipv6_fcnal ipv6_grp_fcnal ipv6_fcnal_runtime ipv6_large_grp ipv6_compat_mode ipv6_fdb_grp_fcnal ipv6_torture"
>
> ALL_TESTS="basic ${IPV4_TESTS} ${IPV6_TESTS}"
> TESTS="${ALL_TESTS}"
> @@ -767,6 +767,62 @@ ipv6_large_grp()
> $IP nexthop flush >/dev/null 2>&1
> }
>
> +ipv6_del_add_loop1()
> +{
> + while :; do
> + $IP nexthop del id 100
> + $IP nexthop add id 100 via 2001:db8:91::2 dev veth1
> + done >/dev/null 2>&1
> +}
> +
> +ipv6_grp_replace_loop()
> +{
> + while :; do
> + $IP nexthop replace id 102 group 100/101
> + done >/dev/null 2>&1
> +}
> +
> +ipv6_torture()
> +{
> + local pid1
> + local pid2
> + local pid3
> + local pid4
> + local pid5
> +
> + echo
> + echo "IPv6 runtime torture"
> + echo "--------------------"
> + if [ ! -x "$(command -v mausezahn)" ]; then
> + echo "SKIP: Could not run test; need mausezahn tool"
> + return
> + fi
> +
> + run_cmd "$IP nexthop add id 100 via 2001:db8:91::2 dev veth1"
> + run_cmd "$IP nexthop add id 101 via 2001:db8:92::2 dev veth3"
> + run_cmd "$IP nexthop add id 102 group 100/101"
> + run_cmd "$IP route add 2001:db8:101::1 nhid 102"
> + run_cmd "$IP route add 2001:db8:101::2 nhid 102"
> +
> + ipv6_del_add_loop1 &
> + pid1=$!
> + ipv6_grp_replace_loop &
> + pid2=$!
> + ip netns exec me ping -f 2001:db8:101::1 >/dev/null 2>&1 &
> + pid3=$!
> + ip netns exec me ping -f 2001:db8:101::2 >/dev/null 2>&1 &
> + pid4=$!
> + ip netns exec me mausezahn veth1 -B 2001:db8:101::2 -A 2001:db8:91::1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
> + pid5=$!
> +
> + sleep 300
> + kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
> +
> + # if we did not crash, success
> + log_test 0 0 "IPv6 torture test"
> +}
> +
> +
> ipv4_fcnal()
> {
> local rc
> @@ -1313,6 +1369,61 @@ ipv4_compat_mode()
> sysctl_nexthop_compat_mode_set 1 "IPv4"
> }
>
> +ipv4_del_add_loop1()
> +{
> + while :; do
> + $IP nexthop del id 100
> + $IP nexthop add id 100 via 172.16.1.2 dev veth1
> + done >/dev/null 2>&1
> +}
> +
> +ipv4_grp_replace_loop()
> +{
> + while :; do
> + $IP nexthop replace id 102 group 100/101
> + done >/dev/null 2>&1
> +}
> +
> +ipv4_torture()
> +{
> + local pid1
> + local pid2
> + local pid3
> + local pid4
> + local pid5
> +
> + echo
> + echo "IPv4 runtime torture"
> + echo "--------------------"
> + if [ ! -x "$(command -v mausezahn)" ]; then
> + echo "SKIP: Could not run test; need mausezahn tool"
> + return
> + fi
> +
> + run_cmd "$IP nexthop add id 100 via 172.16.1.2 dev veth1"
> + run_cmd "$IP nexthop add id 101 via 172.16.2.2 dev veth3"
> + run_cmd "$IP nexthop add id 102 group 100/101"
> + run_cmd "$IP route add 172.16.101.1 nhid 102"
> + run_cmd "$IP route add 172.16.101.2 nhid 102"
> +
> + ipv4_del_add_loop1 &
> + pid1=$!
> + ipv4_grp_replace_loop &
> + pid2=$!
> + ip netns exec me ping -f 172.16.101.1 >/dev/null 2>&1 &
> + pid3=$!
> + ip netns exec me ping -f 172.16.101.2 >/dev/null 2>&1 &
> + pid4=$!
> + ip netns exec me mausezahn veth1 -B 172.16.101.2 -A 172.16.1.1 -c 0 -t tcp "dp=1-1023, flags=syn" >/dev/null 2>&1 &
> + pid5=$!
> +
> + sleep 300
> + kill -9 $pid1 $pid2 $pid3 $pid4 $pid5
> +
> + # if we did not crash, success
> + log_test 0 0 "IPv4 torture test"
> +}
> +
> basic()
> {
> echo
>
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