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selftests: mptcp: join: rm: set backup flag

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commit aea73bae66 upstream.

Some of these 'remove' tests rarely fail because a subflow has been
reset instead of cleanly removed. This can happen when one extra subflow
which has never carried data is being closed (FIN) on one side, while
the other is sending data for the first time.

To avoid such subflows to be used right at the end, the backup flag has
been added. With that, data will be only carried on the initial subflow.

Fixes: d2c4333a80 ("selftests: mptcp: add testcases for removing addrs")
Cc: stable@vger.kernel.org
Reviewed-by: Geliang Tang <geliang@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20251110-net-mptcp-sft-join-unstable-v1-2-a4332c714e10@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Matthieu Baerts (NGI0)
2025-11-10 19:23:41 +01:00
committed by Greg Kroah-Hartman
parent ef51fbbb55
commit 927bb57299
1 changed files with 27 additions and 27 deletions
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54
tools/testing/selftests/net/mptcp/mptcp_join.sh
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@@ -2347,7 +2347,7 @@ remove_tests()
if reset "remove single subflow"; then
pm_nl_set_limits $ns1 0 1
pm_nl_set_limits $ns2 0 1
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
addr_nr_ns2=-1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 1 1 1
@@ -2360,8 +2360,8 @@ remove_tests()
if reset "remove multiple subflows"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 0 2
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
addr_nr_ns2=-2 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
@@ -2372,7 +2372,7 @@ remove_tests()
# single address, remove
if reset "remove single address"; then
pm_nl_set_limits $ns1 0 1
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
pm_nl_set_limits $ns2 1 1
addr_nr_ns1=-1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
@@ -2385,9 +2385,9 @@ remove_tests()
# subflow and signal, remove
if reset "remove subflow and signal"; then
pm_nl_set_limits $ns1 0 2
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
pm_nl_set_limits $ns2 1 2
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
addr_nr_ns1=-1 addr_nr_ns2=-1 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 2 2 2
@@ -2399,10 +2399,10 @@ remove_tests()
# subflows and signal, remove
if reset "remove subflows and signal"; then
pm_nl_set_limits $ns1 0 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow,backup
addr_nr_ns1=-1 addr_nr_ns2=-2 speed=10 \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
@@ -2414,9 +2414,9 @@ remove_tests()
# addresses remove
if reset "remove addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal id 250
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup id 250
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
pm_nl_add_endpoint $ns1 10.0.4.1 flags signal,backup
pm_nl_set_limits $ns2 3 3
addr_nr_ns1=-3 speed=10 \
run_tests $ns1 $ns2 10.0.1.1
@@ -2429,10 +2429,10 @@ remove_tests()
# invalid addresses remove
if reset "remove invalid addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
pm_nl_add_endpoint $ns1 10.0.12.1 flags signal,backup
# broadcast IP: no packet for this address will be received on ns1
pm_nl_add_endpoint $ns1 224.0.0.1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 224.0.0.1 flags signal,backup
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
pm_nl_set_limits $ns2 2 2
addr_nr_ns1=-3 speed=10 \
run_tests $ns1 $ns2 10.0.1.1
@@ -2446,10 +2446,10 @@ remove_tests()
# subflows and signal, flush
if reset "flush subflows and signal"; then
pm_nl_set_limits $ns1 0 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup
pm_nl_set_limits $ns2 1 3
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow,backup
addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
@@ -2462,9 +2462,9 @@ remove_tests()
if reset "flush subflows"; then
pm_nl_set_limits $ns1 3 3
pm_nl_set_limits $ns2 3 3
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow id 150
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup id 150
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
pm_nl_add_endpoint $ns2 10.0.4.2 flags subflow,backup
addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
chk_join_nr 3 3 3
@@ -2481,9 +2481,9 @@ remove_tests()
# addresses flush
if reset "flush addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal id 250
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 10.0.4.1 flags signal
pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,backup id 250
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
pm_nl_add_endpoint $ns1 10.0.4.1 flags signal,backup
pm_nl_set_limits $ns2 3 3
addr_nr_ns1=-8 addr_nr_ns2=-8 speed=slow \
run_tests $ns1 $ns2 10.0.1.1
@@ -2496,9 +2496,9 @@ remove_tests()
# invalid addresses flush
if reset "flush invalid addresses"; then
pm_nl_set_limits $ns1 3 3
pm_nl_add_endpoint $ns1 10.0.12.1 flags signal
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal
pm_nl_add_endpoint $ns1 10.0.14.1 flags signal
pm_nl_add_endpoint $ns1 10.0.12.1 flags signal,backup
pm_nl_add_endpoint $ns1 10.0.3.1 flags signal,backup
pm_nl_add_endpoint $ns1 10.0.14.1 flags signal,backup
pm_nl_set_limits $ns2 3 3
addr_nr_ns1=-8 speed=slow \
run_tests $ns1 $ns2 10.0.1.1