This is a note to let you know that I've just added the patch titled selftests: mptcp: join: fix "userspace pm add & remove address" to the 6.1-stable tree which can be found at: http://www.kernel.org/git/?p=linux/kernel/git/stable/stable-queue.git;a=summary The filename of the patch is: selftests-mptcp-join-fix-userspace-pm-add-remove-address.patch and it can be found in the queue-6.1 subdirectory. If you, or anyone else, feels it should not be added to the stable tree, please let <stable@xxxxxxxxxxxxxxx> know about it. >From stable-owner@xxxxxxxxxxxxxxx Thu Jun 22 17:43:24 2023 From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> Date: Thu, 22 Jun 2023 17:43:07 +0200 Subject: selftests: mptcp: join: fix "userspace pm add & remove address" To: stable@xxxxxxxxxxxxxxx, gregkh@xxxxxxxxxxxxxxxxxxx Cc: Geliang Tang <geliang.tang@xxxxxxxx>, mptcp@xxxxxxxxxxxxxxx, Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> Message-ID: <20230622154307.3362179-1-matthieu.baerts@xxxxxxxxxxxx> From: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> It looks like this test was broken in v6.1 after the backport of commit 48d73f609dcc ("selftests: mptcp: update userspace pm addr tests"). It was not working because the commit ad3493746ebe ("selftests: mptcp: add test-cases for mixed v4/v6 subflows") is not in v6.1. This commit changes how the connections are being created in mptcp_join.sh selftest: with IPv6 support always enabled. But then in v6.1, the server still create IPv4 only connections, so without the v4-mapped-v6 format with the "::ffff:" prefix like we have in v6.3. The modification here adds a support for connections created in v4 as well so it fixes the issue in v6.1. This patch is not needed for the selftests in v6.3 because only IPv6 listening sockets are being created. Fixes: 8f0ba8ec18f5 ("selftests: mptcp: update userspace pm addr tests") Cc: stable@xxxxxxxxxxxxxxx Signed-off-by: Matthieu Baerts <matthieu.baerts@xxxxxxxxxxxx> Signed-off-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> --- tools/testing/selftests/net/mptcp/mptcp_join.sh | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) --- a/tools/testing/selftests/net/mptcp/mptcp_join.sh +++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh @@ -946,11 +946,12 @@ do_transfer() sp=$(grep "type:10" "$evts_ns1" | sed -n 's/.*\(sport:\)\([[:digit:]]*\).*$/\2/p;q') da=$(grep "type:10" "$evts_ns1" | - sed -n 's/.*\(daddr6:\)\([0-9a-f:.]*\).*$/\2/p;q') + sed -n 's/.*\(daddr[46]:\)\([0-9a-f:.]*\).*$/\2/p;q') + echo "$da" | grep -q ":" && addr="::ffff:$addr" dp=$(grep "type:10" "$evts_ns1" | sed -n 's/.*\(dport:\)\([[:digit:]]*\).*$/\2/p;q') ip netns exec ${listener_ns} ./pm_nl_ctl rem token $tk id $id - ip netns exec ${listener_ns} ./pm_nl_ctl dsf lip "::ffff:$addr" \ + ip netns exec ${listener_ns} ./pm_nl_ctl dsf lip "$addr" \ lport $sp rip $da rport $dp token $tk fi Patches currently in stable-queue which might be from stable-owner@xxxxxxxxxxxxxxx are queue-6.1/selftests-mptcp-join-fix-userspace-pm-add-remove-address.patch queue-6.1/selftests-mptcp-join-skip-userspace-pm-tests-if-not-supported.patch queue-6.1/selftests-mptcp-join-skip-test-if-iptables-tc-cmds-fail.patch