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selftests: mptcp: join: cover ADD_ADDR tx drop and list progress

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Extend add_addr_ports_tests with IPv6 signaling cases that exercise
ADD_ADDR tx-space shortage when tcp_timestamps are enabled.

Add one case to verify PM still progresses to later signal endpoints
after the first one is dropped.

This covers both failure accounting and the non-blocking behavior of
the announce list after a tx-space drop on pure ACK.

Signed-off-by: Li Xiasong <lixiasong1@huawei.com>
Reviewed-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Signed-off-by: Matthieu Baerts (NGI0) <matttbe@kernel.org>
Link: https://patch.msgid.link/20260515-net-mptcp-misc-fixes-7-1-rc4-v2-3-701e96419f2f@kernel.org
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
This commit is contained in:
Li Xiasong 2026-05-15 06:27:34 +02:00 committed by Paolo Abeni
parent 51e398a3b8
commit fc5ef43318
1 changed files with 31 additions and 0 deletions
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31
tools/testing/selftests/net/mptcp/mptcp_join.sh
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@ -1828,6 +1828,22 @@ chk_add_tx_nr()
fi
}
chk_add_drop_tx_nr()
{
local drop_tx_nr=$1
local count
print_check "add addr tx drop"
count=$(mptcp_lib_get_counter ${ns1} "MPTcpExtAddAddrTxDrop")
if [ -z "$count" ]; then
print_skip
elif [ "$count" != "$drop_tx_nr" ]; then
fail_test "got $count ADD_ADDR drop[s] TX, expected $drop_tx_nr"
else
print_ok
fi
}
chk_rm_nr()
{
local rm_addr_nr=$1
@ -3278,6 +3294,21 @@ add_addr_ports_tests()
chk_mpc_endp_attempt ${retl} 1
fi
# first signal address drops, second one still progresses
if reset "signal addr list progresses after tx drop"; then
pm_nl_set_limits $ns1 0 2
pm_nl_set_limits $ns2 1 0
ip netns exec $ns1 sysctl -q net.ipv4.tcp_timestamps=1
ip netns exec $ns2 sysctl -q net.ipv4.tcp_timestamps=1
pm_nl_add_endpoint $ns1 dead:beef:2::1 flags signal port 10100
pm_nl_add_endpoint $ns1 dead:beef:3::1 flags signal
run_tests $ns1 $ns2 dead:beef:1::1
chk_add_drop_tx_nr 1
chk_add_tx_nr 1 1
chk_add_nr 1 1 0
fi
}
bind_tests()