1 files changed, 51 insertions, 0 deletions
diff --git a/tests/ts/lsfd/mkfds-pidfd b/tests/ts/lsfd/mkfds-pidfd
new file mode 100755
index 0000000..aad693f
--- /dev/null
+++ b/tests/ts/lsfd/mkfds-pidfd
@@ -0,0 +1,51 @@
+#!/bin/bash
+#
+# Copyright (C) 2022 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="${0%/*}/../.."
+TS_DESC="pidfd"
+
+. "$TS_TOPDIR"/functions.sh
+ts_init "$*"
+
+. "$TS_SELF/lsfd-functions.bash"
+ts_check_test_command "$TS_CMD_LSFD"
+ts_check_test_command "$TS_HELPER_MKFDS"
+ts_check_prog "ps"
+
+ts_cd "$TS_OUTDIR"
+
+[ "$(ps --no-headers -o comm 1)" = 'systemd'  ] || ts_skip "pid 1 is not systemd"
+
+PID=
+FD=3
+TARGET=1
+EXPR="(PID != ${TARGET}) and (FD == 3) and (PIDFD.PID == ${TARGET})"
+
+{
+    coproc MKFDS { "$TS_HELPER_MKFDS" pidfd $FD target-pid=${TARGET} ; }
+    if read -u ${MKFDS[0]} PID; then
+	${TS_CMD_LSFD} -n -o ASSOC,STTYPE,SOURCE,NAME,PIDFD.COMM,PIDFD.PID -p "${PID}" -p ${TARGET} -Q "${EXPR}"
+	echo 'ASSOC,STTYPE,SOURCE,NAME,PIDFD.COMM,PIDFD.PID': $?
+
+	kill -CONT ${PID}
+    fi
+    wait ${MKFDS_PID}
+} > $TS_OUTPUT 2>&1
+if [ "$?" == "$ENOSYS" ]; then
+    ts_skip "pidfd_open(2) is not available"
+fi
+
+ts_finalize