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authorMatthieu Baerts (NGI0) <matttbe@kernel.org>2026-03-24 12:49:39 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2026-04-11 15:16:38 +0300
commitc7643c6cf35255bb7f5bd41ed67d862d88d52b11 (patch)
tree4e78a09c58c6affc7dbf1b43c41432437436dc18 /tools
parent3f20513e003d772ebf8187e1872a0d72ff9c8839 (diff)
downloadlinux-c7643c6cf35255bb7f5bd41ed67d862d88d52b11.tar.xz
selftests: mptcp: join: check removing signal+subflow endp
commit 1777f349ff41b62dfe27454b69c27b0bc99ffca5 upstream. This validates the previous commit: endpoints with both the signal and subflow flags should always be marked as used even if it was not possible to create new subflows due to the MPTCP PM limits. For this test, an extra endpoint is created with both the signal and the subflow flags, and limits are set not to create extra subflows. In this case, an ADD_ADDR is sent, but no subflows are created. Still, the local endpoint is marked as used, and no warning is fired when removing the endpoint, after having sent a RM_ADDR. The 'Fixes' tag here below is the same as the one from the previous commit: this patch here is not fixing anything wrong in the selftests, but it validates the previous fix for an issue introduced by this commit ID. Fixes: 85df533a787b ("mptcp: pm: do not ignore 'subflow' if 'signal' flag is also set") Cc: stable@vger.kernel.org Reviewed-by: Mat Martineau <martineau@kernel.org> Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Link: https://patch.msgid.link/20260303-net-mptcp-misc-fixes-7-0-rc2-v1-5-4b5462b6f016@kernel.org Signed-off-by: Jakub Kicinski <kuba@kernel.org> [ No conflicts, but in this kernel version 'run_tests' doesn't support parameters set via env vars: positional parameters need to be used. See commit 595ef566a2ef ("selftests: mptcp: drop addr_nr_ns1/2 parameters") and commit e571fb09c893 ("selftests: mptcp: add speed env var") which are not in this kernel version. ] Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'tools')
-rwxr-xr-xtools/testing/selftests/net/mptcp/mptcp_join.sh12
1 files changed, 12 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index 044ba9c4e169..973f76557f23 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -2407,6 +2407,18 @@ remove_tests()
chk_rst_nr 0 0
fi
+ # signal+subflow with limits, remove
+ if reset "remove signal+subflow with limits"; then
+ pm_nl_set_limits $ns1 0 0
+ pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,subflow
+ pm_nl_set_limits $ns2 0 0
+ run_tests $ns1 $ns2 10.0.1.1 0 -1 0 slow
+ chk_join_nr 0 0 0
+ chk_add_nr 1 1
+ chk_rm_nr 1 0 invert
+ chk_rst_nr 0 0
+ fi
+
# addresses remove
if reset "remove addresses"; then
pm_nl_set_limits $ns1 3 3