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authorLi Xiasong <lixiasong1@huawei.com>2026-05-15 06:27:34 +0200
committerPaolo Abeni <pabeni@redhat.com>2026-05-19 15:36:35 +0200
commitfc5ef4331810b160427ad2d0165dff713e968e9b (patch)
tree869897c2df337a436feb7b9347a4060fae1e5e4b
parent51e398a3b8961b26a8c0a4ba9a777c5339791707 (diff)
selftests: mptcp: join: cover ADD_ADDR tx drop and list progress
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>
-rwxr-xr-xtools/testing/selftests/net/mptcp/mptcp_join.sh31
1 files changed, 31 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index beec41f6662a..5acd12021e6e 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -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()