diff options
Diffstat (limited to 'target/linux/generic/backport-5.4/080-wireguard-0119-wireguard-selftests-test-multiple-parallel-streams.patch')
| -rw-r--r-- | target/linux/generic/backport-5.4/080-wireguard-0119-wireguard-selftests-test-multiple-parallel-streams.patch | 52 |
1 files changed, 52 insertions, 0 deletions
diff --git a/target/linux/generic/backport-5.4/080-wireguard-0119-wireguard-selftests-test-multiple-parallel-streams.patch b/target/linux/generic/backport-5.4/080-wireguard-0119-wireguard-selftests-test-multiple-parallel-streams.patch new file mode 100644 index 0000000000..3093de45f7 --- /dev/null +++ b/target/linux/generic/backport-5.4/080-wireguard-0119-wireguard-selftests-test-multiple-parallel-streams.patch @@ -0,0 +1,52 @@ +From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001 +From: "Jason A. Donenfeld" <Jason@zx2c4.com> +Date: Mon, 22 Feb 2021 17:25:45 +0100 +Subject: [PATCH] wireguard: selftests: test multiple parallel streams + +commit d5a49aa6c3e264a93a7d08485d66e346be0969dd upstream. + +In order to test ndo_start_xmit being called in parallel, explicitly add +separate tests, which should all run on different cores. This should +help tease out bugs associated with queueing up packets from different +cores in parallel. Currently, it hasn't found those types of bugs, but +given future planned work, this is a useful regression to avoid. + +Fixes: e7096c131e51 ("net: WireGuard secure network tunnel") +Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> +Signed-off-by: Jakub Kicinski <kuba@kernel.org> +Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com> +--- + tools/testing/selftests/wireguard/netns.sh | 15 ++++++++++++++- + 1 file changed, 14 insertions(+), 1 deletion(-) + +--- a/tools/testing/selftests/wireguard/netns.sh ++++ b/tools/testing/selftests/wireguard/netns.sh +@@ -39,7 +39,7 @@ ip0() { pretty 0 "ip $*"; ip -n $netns0 + ip1() { pretty 1 "ip $*"; ip -n $netns1 "$@"; } + ip2() { pretty 2 "ip $*"; ip -n $netns2 "$@"; } + sleep() { read -t "$1" -N 1 || true; } +-waitiperf() { pretty "${1//*-}" "wait for iperf:5201 pid $2"; while [[ $(ss -N "$1" -tlpH 'sport = 5201') != *\"iperf3\",pid=$2,fd=* ]]; do sleep 0.1; done; } ++waitiperf() { pretty "${1//*-}" "wait for iperf:${3:-5201} pid $2"; while [[ $(ss -N "$1" -tlpH "sport = ${3:-5201}") != *\"iperf3\",pid=$2,fd=* ]]; do sleep 0.1; done; } + waitncatudp() { pretty "${1//*-}" "wait for udp:1111 pid $2"; while [[ $(ss -N "$1" -ulpH 'sport = 1111') != *\"ncat\",pid=$2,fd=* ]]; do sleep 0.1; done; } + waitiface() { pretty "${1//*-}" "wait for $2 to come up"; ip netns exec "$1" bash -c "while [[ \$(< \"/sys/class/net/$2/operstate\") != up ]]; do read -t .1 -N 0 || true; done;"; } + +@@ -141,6 +141,19 @@ tests() { + n2 iperf3 -s -1 -B fd00::2 & + waitiperf $netns2 $! + n1 iperf3 -Z -t 3 -b 0 -u -c fd00::2 ++ ++ # TCP over IPv4, in parallel ++ for max in 4 5 50; do ++ local pids=( ) ++ for ((i=0; i < max; ++i)) do ++ n2 iperf3 -p $(( 5200 + i )) -s -1 -B 192.168.241.2 & ++ pids+=( $! ); waitiperf $netns2 $! $(( 5200 + i )) ++ done ++ for ((i=0; i < max; ++i)) do ++ n1 iperf3 -Z -t 3 -p $(( 5200 + i )) -c 192.168.241.2 & ++ done ++ wait "${pids[@]}" ++ done + } + + [[ $(ip1 link show dev wg0) =~ mtu\ ([0-9]+) ]] && orig_mtu="${BASH_REMATCH[1]}" |