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selftests: mptcp: ADD_ADDR echo test with missing userspace daemon

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Check userspace PM behavior to ensure ADD_ADDR echoes are only sent when
there is an active userspace daemon. If the daemon is restarting or
hasn't loaded yet, the missing echo will cause the peer to retransmit
the ADD_ADDR - and hopefully the daemon will be ready to receive it at
that later time.

Reviewed-by: Matthieu Baerts <matthieu.baerts@tessares.net>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Mat Martineau 2022-05-02 13:52:32 -07:00 committed by Jakub Kicinski
parent 4d25247d3a
commit b3b71bf915
1 changed files with 11 additions and 0 deletions
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11
tools/testing/selftests/net/mptcp/mptcp_join.sh
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@ -2719,6 +2719,17 @@ userspace_tests()
chk_add_nr 0 0
fi
# userspace pm type does not echo add_addr without daemon
if reset "userspace pm no echo w/o daemon"; then
set_userspace_pm $ns2
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 0 0 0
chk_add_nr 1 0
fi
# userspace pm type rejects join
if reset "userspace pm type rejects join"; then
set_userspace_pm $ns1