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-rwxr-xr-xtools/testing/selftests/net/mptcp/mptcp_join.sh49
1 files changed, 49 insertions, 0 deletions
diff --git a/tools/testing/selftests/net/mptcp/mptcp_join.sh b/tools/testing/selftests/net/mptcp/mptcp_join.sh
index dc1f200aaa81..a3144d7298a5 100755
--- a/tools/testing/selftests/net/mptcp/mptcp_join.sh
+++ b/tools/testing/selftests/net/mptcp/mptcp_join.sh
@@ -104,6 +104,24 @@ CBPF_MPTCP_SUBOPTION_ADD_ADDR="14,
6 0 0 65535,
6 0 0 0"
+# IPv4: TCP hdr of 48B, a first suboption of 12B (DACK8), the RM_ADDR suboption
+# generated using "nfbpf_compile '(ip[32] & 0xf0) == 0xc0 && ip[53] == 0x0c &&
+# (ip[66] & 0xf0) == 0x40'"
+CBPF_MPTCP_SUBOPTION_RM_ADDR="13,
+ 48 0 0 0,
+ 84 0 0 240,
+ 21 0 9 64,
+ 48 0 0 32,
+ 84 0 0 240,
+ 21 0 6 192,
+ 48 0 0 53,
+ 21 0 4 12,
+ 48 0 0 66,
+ 84 0 0 240,
+ 21 0 1 64,
+ 6 0 0 65535,
+ 6 0 0 0"
+
init_partial()
{
capout=$(mktemp)
@@ -2608,6 +2626,19 @@ remove_tests()
chk_rst_nr 0 0
fi
+ # signal+subflow with limits, remove
+ if reset "remove signal+subflow with limits"; then
+ pm_nl_set_limits $ns1 0 0
+ pm_nl_add_endpoint $ns1 10.0.2.1 flags signal,subflow
+ pm_nl_set_limits $ns2 0 0
+ addr_nr_ns1=-1 speed=slow \
+ run_tests $ns1 $ns2 10.0.1.1
+ chk_join_nr 0 0 0
+ chk_add_nr 1 1
+ chk_rm_nr 1 0 invert
+ chk_rst_nr 0 0
+ fi
+
# addresses remove
if reset "remove addresses"; then
pm_nl_set_limits $ns1 3 3
@@ -4217,6 +4248,14 @@ endpoint_tests()
chk_subflow_nr "after no reject" 3
chk_mptcp_info subflows 2 subflows 2
+ # To make sure RM_ADDR are sent over a different subflow, but
+ # allow the rest to quickly and cleanly close the subflow
+ local ipt=1
+ ip netns exec "${ns2}" ${iptables} -I OUTPUT -s "10.0.1.2" \
+ -p tcp -m tcp --tcp-option 30 \
+ -m bpf --bytecode \
+ "$CBPF_MPTCP_SUBOPTION_RM_ADDR" \
+ -j DROP || ipt=0
local i
for i in $(seq 3); do
pm_nl_del_endpoint $ns2 1 10.0.1.2
@@ -4229,6 +4268,7 @@ endpoint_tests()
chk_subflow_nr "after re-add id 0 ($i)" 3
chk_mptcp_info subflows 3 subflows 3
done
+ [ ${ipt} = 1 ] && ip netns exec "${ns2}" ${iptables} -D OUTPUT 1
mptcp_lib_kill_group_wait $tests_pid
@@ -4288,11 +4328,20 @@ endpoint_tests()
chk_mptcp_info subflows 2 subflows 2
chk_mptcp_info add_addr_signal 2 add_addr_accepted 2
+ # To make sure RM_ADDR are sent over a different subflow, but
+ # allow the rest to quickly and cleanly close the subflow
+ local ipt=1
+ ip netns exec "${ns1}" ${iptables} -I OUTPUT -s "10.0.1.1" \
+ -p tcp -m tcp --tcp-option 30 \
+ -m bpf --bytecode \
+ "$CBPF_MPTCP_SUBOPTION_RM_ADDR" \
+ -j DROP || ipt=0
pm_nl_del_endpoint $ns1 42 10.0.1.1
sleep 0.5
chk_subflow_nr "after delete ID 0" 2
chk_mptcp_info subflows 2 subflows 2
chk_mptcp_info add_addr_signal 2 add_addr_accepted 2
+ [ ${ipt} = 1 ] && ip netns exec "${ns1}" ${iptables} -D OUTPUT 1
pm_nl_add_endpoint $ns1 10.0.1.1 id 99 flags signal
wait_mpj 4