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selftests: mptcp: join: check re-re-adding ID 0 signal 

commit f18fa2abf81099d822d842a107f8c9889c86043c upstream.

This test extends "delete re-add signal" to validate the previous
commit: when the 'signal' endpoint linked to the initial subflow (ID 0)
is re-added multiple times, it will re-send the ADD_ADDR with id 0. The
client should still be able to re-create this subflow, even if the
add_addr_accepted limit has been reached as this special address is not
considered as a new address.

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: d0876b2284 ("mptcp: add the incoming RM_ADDR support")
Cc: stable@vger.kernel.org
Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matthieu Baerts (NGI0) 2024-09-03 12:23:51 +02:00 committed by Greg Kroah-Hartman
parent a417ef47a6
commit f9ca09beed
1 changed files with 21 additions and 11 deletions
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32
tools/testing/selftests/net/mptcp/mptcp_join.sh
View File

@ -3794,7 +3794,7 @@ endpoint_tests()
# broadcast IP: no packet for this address will be received on ns1
pm_nl_add_endpoint $ns1 224.0.0.1 id 2 flags signal
pm_nl_add_endpoint $ns1 10.0.1.1 id 42 flags signal
test_linkfail=4 speed=20 \
test_linkfail=4 speed=5 \
run_tests $ns1 $ns2 10.0.1.1 &
local tests_pid=$!
@ -3823,7 +3823,17 @@ endpoint_tests()
pm_nl_add_endpoint $ns1 10.0.1.1 id 99 flags signal
wait_mpj $ns2
chk_subflow_nr "after re-add" 3
chk_subflow_nr "after re-add ID 0" 3
chk_mptcp_info subflows 3 subflows 3
pm_nl_del_endpoint $ns1 99 10.0.1.1
sleep 0.5
chk_subflow_nr "after re-delete ID 0" 2
chk_mptcp_info subflows 2 subflows 2
pm_nl_add_endpoint $ns1 10.0.1.1 id 88 flags signal
wait_mpj $ns2
chk_subflow_nr "after re-re-add ID 0" 3
chk_mptcp_info subflows 3 subflows 3
mptcp_lib_kill_wait $tests_pid
@ -3833,19 +3843,19 @@ endpoint_tests()
chk_evt_nr ns1 MPTCP_LIB_EVENT_ESTABLISHED 1
chk_evt_nr ns1 MPTCP_LIB_EVENT_ANNOUNCED 0
chk_evt_nr ns1 MPTCP_LIB_EVENT_REMOVED 0
chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 4
chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 2
chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
chk_evt_nr ns1 MPTCP_LIB_EVENT_SUB_CLOSED 3
chk_evt_nr ns2 MPTCP_LIB_EVENT_CREATED 1
chk_evt_nr ns2 MPTCP_LIB_EVENT_ESTABLISHED 1
chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 5
chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 3
chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 4
chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 2
chk_evt_nr ns2 MPTCP_LIB_EVENT_ANNOUNCED 6
chk_evt_nr ns2 MPTCP_LIB_EVENT_REMOVED 4
chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_ESTABLISHED 5
chk_evt_nr ns2 MPTCP_LIB_EVENT_SUB_CLOSED 3
chk_join_nr 4 4 4
chk_add_nr 5 5
chk_rm_nr 3 2 invert
chk_join_nr 5 5 5
chk_add_nr 6 6
chk_rm_nr 4 3 invert
fi
}