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selftests: mptcp: join: validate backup in MPJ

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commit 935ff5bb8a1cfcdf8e60c8f5c794d0bbbc234437 upstream.

A peer can notify the other one that a subflow has to be treated as
"backup" by two different ways: either by sending a dedicated MP_PRIO
notification, or by setting the backup flag in the MP_JOIN handshake.

The selftests were previously monitoring the former, but not the latter.
This is what is now done here by looking at these new MIB counters when
validating the 'backup' cases:

  MPTcpExtMPJoinSynBackupRx
  MPTcpExtMPJoinSynAckBackupRx

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 will help to validate a new fix for an issue introduced by this
commit ID.

Fixes: 4596a2c1b7 ("mptcp: allow creating non-backup subflows")
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>
[ Conflicts in mptcp_join.sh because the check are done has changed,
  e.g. in commit 03668c65d1 ("selftests: mptcp: join: rework detailed
  report"), or commit 985de45923 ("selftests: mptcp: centralize stats
  dumping"), etc. Adaptations have been made to use the old way, similar
  to what is done just above. ]
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)
2024-08-08 17:36:58 +02:00
committed by Greg Kroah-Hartman
parent d7a6110365
commit af9640c72a
1 changed files with 36 additions and 10 deletions
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46
tools/testing/selftests/net/mptcp/mptcp_join.sh
View File

@@ -1800,6 +1800,8 @@ chk_prio_nr()
{
local mp_prio_nr_tx=$1
local mp_prio_nr_rx=$2
local mpj_syn=$3
local mpj_syn_ack=$4
local count
local dump_stats
@@ -1827,6 +1829,30 @@ chk_prio_nr()
echo "[ ok ]"
fi
printf "%-${nr_blank}s %s" " " "bkp syn"
count=$(get_counter ${ns1} "MPTcpExtMPJoinSynBackupRx")
if [ -z "$count" ]; then
echo -n "[skip]"
elif [ "$count" != "$mpj_syn" ]; then
echo "[fail] got $count JOIN[s] syn with Backup expected $mpj_syn"
fail_test
dump_stats=1
else
echo -n "[ ok ]"
fi
echo -n " - synack "
count=$(get_counter ${ns2} "MPTcpExtMPJoinSynAckBackupRx")
if [ -z "$count" ]; then
echo "[skip]"
elif [ "$count" != "$mpj_syn_ack" ]; then
echo "[fail] got $count JOIN[s] synack with Backup expected $mpj_syn_ack"
fail_test
dump_stats=1
else
echo "[ ok ]"
fi
[ "${dump_stats}" = 1 ] && dump_stats
}
@@ -2633,7 +2659,7 @@ backup_tests()
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow,backup
run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow nobackup
chk_join_nr 1 1 1
chk_prio_nr 0 1
chk_prio_nr 0 1 1 0
fi
# single address, backup
@@ -2645,7 +2671,7 @@ backup_tests()
run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_prio_nr 1 1
chk_prio_nr 1 1 0 0
fi
# single address with port, backup
@@ -2657,7 +2683,7 @@ backup_tests()
run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup
chk_join_nr 1 1 1
chk_add_nr 1 1
chk_prio_nr 1 1
chk_prio_nr 1 1 0 0
fi
if reset "mpc backup" &&
@@ -2665,7 +2691,7 @@ backup_tests()
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow
chk_join_nr 0 0 0
chk_prio_nr 0 1
chk_prio_nr 0 1 0 0
fi
if reset "mpc backup both sides" &&
@@ -2674,7 +2700,7 @@ backup_tests()
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow,backup
run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow
chk_join_nr 0 0 0
chk_prio_nr 1 1
chk_prio_nr 1 1 0 0
fi
if reset "mpc switch to backup" &&
@@ -2682,7 +2708,7 @@ backup_tests()
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup
chk_join_nr 0 0 0
chk_prio_nr 0 1
chk_prio_nr 0 1 0 0
fi
if reset "mpc switch to backup both sides" &&
@@ -2691,7 +2717,7 @@ backup_tests()
pm_nl_add_endpoint $ns2 10.0.1.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup
chk_join_nr 0 0 0
chk_prio_nr 1 1
chk_prio_nr 1 1 0 0
fi
}
@@ -3022,7 +3048,7 @@ fullmesh_tests()
pm_nl_set_limits $ns2 4 4
run_tests $ns1 $ns2 10.0.1.1 0 0 1 slow backup,fullmesh
chk_join_nr 2 2 2
chk_prio_nr 0 1
chk_prio_nr 0 1 1 0
chk_rm_nr 0 1
fi
@@ -3034,7 +3060,7 @@ fullmesh_tests()
pm_nl_add_endpoint $ns2 10.0.2.2 flags subflow,backup,fullmesh
run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow nobackup,nofullmesh
chk_join_nr 2 2 2
chk_prio_nr 0 1
chk_prio_nr 0 1 1 0
chk_rm_nr 0 1
fi
}
@@ -3140,7 +3166,7 @@ userspace_tests()
pm_nl_add_endpoint $ns2 10.0.3.2 flags subflow
run_tests $ns1 $ns2 10.0.1.1 0 0 0 slow backup
chk_join_nr 1 1 0
chk_prio_nr 0 0
chk_prio_nr 0 0 0 0
fi
# userspace pm type prevents rm_addr