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#!/bin/bash
#
# Copyright (C) 2023 Masatake YAMATO <yamato@redhat.com>
#
# This file is part of util-linux.
#
# This file is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This file is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
TS_TOPDIR="${0%/*}/../.."
TS_DESC="NETLINK sockets"
. "$TS_TOPDIR"/functions.sh
ts_init "$*"
ts_skip_nonroot
. "$TS_SELF"/lsfd-functions.bash
ts_check_test_command "$TS_CMD_LSFD"
ts_check_test_command "$TS_HELPER_MKFDS"
ts_cd "$TS_OUTDIR"
PID=
FD=3
EXPR='(TYPE == "NETLINK") and (FD == 3)'
NETLINK_PROTOCOL=4
NETLINK_LPORT=
NETLINK_GROUPS=5
{
coproc MKFDS { "$TS_HELPER_MKFDS" netlink $FD protocol=$NETLINK_PROTOCOL groups=$NETLINK_GROUPS; }
if read -r -u "${MKFDS[0]}" PID; then
${TS_CMD_LSFD} -n \
-o ASSOC,TYPE,NAME,SOCK.STATE,SOCK.TYPE,NETLINK.PROTOCOL,NETLINK.GROUPS \
-p "${PID}" -Q "${EXPR}" | sed -e "s/lport=${PID}/lport=/g"
echo 'ASSOC,TYPE,NAME,SOCK.STATE,SOCK.TYPE,NETLINK.PROTOCOL,NETLINK.GROUPS': ${PIPESTATUS[0]}
NETLINK_LPORT=$(${TS_CMD_LSFD} --raw -n -o NETLINK.LPORT -p "${PID}" -Q "${EXPR}")
if [ "${NETLINK_LPORT}" == "${PID}" ]; then
echo 'LPORT: OK'
else
printf "LPORT: FAILED (PID: %d != NETLINK.LPORT: %d)\n" "${PID}" "${NETLINK_LPORT}"
fi
echo DONE >&"${MKFDS[1]}"
fi
wait "${MKFDS_PID}"
} > "$TS_OUTPUT" 2>&1
if [[ $? == "$EPROTONOSUPPORT" ]]; then
ts_skip "It seems that this platform doesn't support making a netlink socket"
fi
ts_finalize
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